--- /dev/null
+Linux NFC subsystem
+===================
+
+The Near Field Communication (NFC) subsystem is required to standardize the
+NFC device drivers development and to create an unified userspace interface.
+
+This document covers the architecture overview, the device driver interface
+description and the userspace interface description.
+
+Architecture overview
+---------------------
+
+The NFC subsystem is responsible for:
+ - NFC adapters management;
+ - Polling for targets;
+ - Low-level data exchange;
+
+The subsystem is divided in some parts. The 'core' is responsible for
+providing the device driver interface. On the other side, it is also
+responsible for providing an interface to control operations and low-level
+data exchange.
+
+The control operations are available to userspace via generic netlink.
+
+The low-level data exchange interface is provided by the new socket family
+PF_NFC. The NFC_SOCKPROTO_RAW performs raw communication with NFC targets.
+
+
+ +--------------------------------------+
+ | USER SPACE |
+ +--------------------------------------+
+ ^ ^
+ | low-level | control
+ | data exchange | operations
+ | |
+ | v
+ | +-----------+
+ | AF_NFC | netlink |
+ | socket +-----------+
+ | raw ^
+ | |
+ v v
+ +---------+ +-----------+
+ | rawsock | <--------> | core |
+ +---------+ +-----------+
+ ^
+ |
+ v
+ +-----------+
+ | driver |
+ +-----------+
+
+Device Driver Interface
+-----------------------
+
+When registering on the NFC subsystem, the device driver must inform the core
+of the set of supported NFC protocols and the set of ops callbacks. The ops
+callbacks that must be implemented are the following:
+
+* start_poll - setup the device to poll for targets
+* stop_poll - stop on progress polling operation
+* activate_target - select and initialize one of the targets found
+* deactivate_target - deselect and deinitialize the selected target
+* data_exchange - send data and receive the response (transceive operation)
+
+Userspace interface
+--------------------
+
+The userspace interface is divided in control operations and low-level data
+exchange operation.
+
+CONTROL OPERATIONS:
+
+Generic netlink is used to implement the interface to the control operations.
+The operations are composed by commands and events, all listed below:
+
+* NFC_CMD_GET_DEVICE - get specific device info or dump the device list
+* NFC_CMD_START_POLL - setup a specific device to polling for targets
+* NFC_CMD_STOP_POLL - stop the polling operation in a specific device
+* NFC_CMD_GET_TARGET - dump the list of targets found by a specific device
+
+* NFC_EVENT_DEVICE_ADDED - reports an NFC device addition
+* NFC_EVENT_DEVICE_REMOVED - reports an NFC device removal
+* NFC_EVENT_TARGETS_FOUND - reports START_POLL results when 1 or more targets
+are found
+
+The user must call START_POLL to poll for NFC targets, passing the desired NFC
+protocols through NFC_ATTR_PROTOCOLS attribute. The device remains in polling
+state until it finds any target. However, the user can stop the polling
+operation by calling STOP_POLL command. In this case, it will be checked if
+the requester of STOP_POLL is the same of START_POLL.
+
+If the polling operation finds one or more targets, the event TARGETS_FOUND is
+sent (including the device id). The user must call GET_TARGET to get the list of
+all targets found by such device. Each reply message has target attributes with
+relevant information such as the supported NFC protocols.
+
+All polling operations requested through one netlink socket are stopped when
+it's closed.
+
+LOW-LEVEL DATA EXCHANGE:
+
+The userspace must use PF_NFC sockets to perform any data communication with
+targets. All NFC sockets use AF_NFC:
+
+struct sockaddr_nfc {
+ sa_family_t sa_family;
+ __u32 dev_idx;
+ __u32 target_idx;
+ __u32 nfc_protocol;
+};
+
+To establish a connection with one target, the user must create an
+NFC_SOCKPROTO_RAW socket and call the 'connect' syscall with the sockaddr_nfc
+struct correctly filled. All information comes from NFC_EVENT_TARGETS_FOUND
+netlink event. As a target can support more than one NFC protocol, the user
+must inform which protocol it wants to use.
+
+Internally, 'connect' will result in an activate_target call to the driver.
+When the socket is closed, the target is deactivated.
+
+The data format exchanged through the sockets is NFC protocol dependent. For
+instance, when communicating with MIFARE tags, the data exchanged are MIFARE
+commands and their responses.
+
+The first received package is the response to the first sent package and so
+on. In order to allow valid "empty" responses, every data received has a NULL
+header of 1 byte.
source "drivers/leds/Kconfig"
-source "drivers/nfc/Kconfig"
-
source "drivers/accessibility/Kconfig"
source "drivers/infiniband/Kconfig"
obj-y += clk/
obj-$(CONFIG_HWSPINLOCK) += hwspinlock/
+obj-$(CONFIG_NFC) += nfc/
bool "Support for BCMA on PCI-host bus"
depends on BCMA_HOST_PCI_POSSIBLE
+config BCMA_DRIVER_PCI_HOSTMODE
+ bool "Driver for PCI core working in hostmode"
+ depends on BCMA && MIPS
+ help
+ PCI core hostmode operation (external PCI bus).
+
config BCMA_DEBUG
bool "BCMA debugging"
depends on BCMA
bcma-y += main.o scan.o core.o sprom.o
bcma-y += driver_chipcommon.o driver_chipcommon_pmu.o
bcma-y += driver_pci.o
+bcma-$(CONFIG_BCMA_DRIVER_PCI_HOSTMODE) += driver_pci_host.o
bcma-$(CONFIG_BCMA_HOST_PCI) += host_pci.o
obj-$(CONFIG_BCMA) += bcma.o
extern void __exit bcma_host_pci_exit(void);
#endif /* CONFIG_BCMA_HOST_PCI */
+#ifdef CONFIG_BCMA_DRIVER_PCI_HOSTMODE
+void bcma_core_pci_hostmode_init(struct bcma_drv_pci *pc);
+#endif /* CONFIG_BCMA_DRIVER_PCI_HOSTMODE */
+
#endif
* Init.
**************************************************/
-void bcma_core_pci_init(struct bcma_drv_pci *pc)
+static void bcma_core_pci_clientmode_init(struct bcma_drv_pci *pc)
{
bcma_pcicore_serdes_workaround(pc);
}
+static bool bcma_core_pci_is_in_hostmode(struct bcma_drv_pci *pc)
+{
+ struct bcma_bus *bus = pc->core->bus;
+ u16 chipid_top;
+
+ chipid_top = (bus->chipinfo.id & 0xFF00);
+ if (chipid_top != 0x4700 &&
+ chipid_top != 0x5300)
+ return false;
+
+ if (bus->sprom.boardflags_lo & SSB_PCICORE_BFL_NOPCI)
+ return false;
+
+#if 0
+ /* TODO: on BCMA we use address from EROM instead of magic formula */
+ u32 tmp;
+ return !mips_busprobe32(tmp, (bus->mmio +
+ (pc->core->core_index * BCMA_CORE_SIZE)));
+#endif
+
+ return true;
+}
+
+void bcma_core_pci_init(struct bcma_drv_pci *pc)
+{
+ if (bcma_core_pci_is_in_hostmode(pc)) {
+#ifdef CONFIG_BCMA_DRIVER_PCI_HOSTMODE
+ bcma_core_pci_hostmode_init(pc);
+#else
+ pr_err("Driver compiled without support for hostmode PCI\n");
+#endif /* CONFIG_BCMA_DRIVER_PCI_HOSTMODE */
+ } else {
+ bcma_core_pci_clientmode_init(pc);
+ }
+}
+
int bcma_core_pci_irq_ctl(struct bcma_drv_pci *pc, struct bcma_device *core,
bool enable)
{
--- /dev/null
+/*
+ * Broadcom specific AMBA
+ * PCI Core in hostmode
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+#include "bcma_private.h"
+#include <linux/bcma/bcma.h>
+
+void bcma_core_pci_hostmode_init(struct bcma_drv_pci *pc)
+{
+ pr_err("No support for PCI core in hostmode yet\n");
+}
#define PAYLOAD_MAX (CARL9170_MAX_CMD_LEN / 4 - 1)
+static const u8 ar9170_qmap[__AR9170_NUM_TXQ] = { 3, 2, 1, 0 };
+
enum carl9170_rf_init_mode {
CARL9170_RFI_NONE,
CARL9170_RFI_WARM,
enum carl9170_ps_off_override_reasons {
PS_OFF_VIF = BIT(0),
PS_OFF_BCN = BIT(1),
- PS_OFF_5GHZ = BIT(2),
};
struct carl9170_ba_stats {
ar->disable_offload = true;
}
- if (SUPP(CARL9170FW_PSM))
+ if (SUPP(CARL9170FW_PSM) && SUPP(CARL9170FW_FIXED_5GHZ_PSM))
ar->hw->flags |= IEEE80211_HW_SUPPORTS_PS;
if (!SUPP(CARL9170FW_USB_INIT_FIRMWARE)) {
* Firmware command interface definitions
*
* Copyright 2008, Johannes Berg <johannes@sipsolutions.net>
- * Copyright 2009, 2010, Christian Lamparter <chunkeey@googlemail.com>
+ * Copyright 2009-2011 Christian Lamparter <chunkeey@googlemail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
CARL9170_CMD_BCN_CTRL = 0x05,
CARL9170_CMD_READ_TSF = 0x06,
CARL9170_CMD_RX_FILTER = 0x07,
+ CARL9170_CMD_WOL = 0x08,
/* CAM */
CARL9170_CMD_EKEY = 0x10,
#define CARL9170_BCN_CTRL_DRAIN 0
#define CARL9170_BCN_CTRL_CAB_TRIGGER 1
+struct carl9170_wol_cmd {
+ __le32 flags;
+ u8 mac[6];
+ u8 bssid[6];
+ __le32 null_interval;
+ __le32 free_for_use2;
+ __le32 mask;
+ u8 pattern[32];
+} __packed;
+
+#define CARL9170_WOL_CMD_SIZE 60
+
+#define CARL9170_WOL_DISCONNECT 1
+#define CARL9170_WOL_MAGIC_PKT 2
+
struct carl9170_cmd_head {
union {
struct {
struct carl9170_write_reg wreg;
struct carl9170_rf_init rf_init;
struct carl9170_psm psm;
+ struct carl9170_wol_cmd wol;
struct carl9170_bcn_ctrl_cmd bcn_ctrl;
struct carl9170_rx_filter_cmd rx_filter;
u8 data[CARL9170_MAX_CMD_PAYLOAD_LEN];
*
* Firmware descriptor format
*
- * Copyright 2009, 2010, Christian Lamparter <chunkeey@googlemail.com>
+ * Copyright 2009-2011 Christian Lamparter <chunkeey@googlemail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
/* Wake up on WLAN */
CARL9170FW_WOL,
+ /* Firmware supports PSM in the 5GHZ Band */
+ CARL9170FW_FIXED_5GHZ_PSM,
+
/* KEEP LAST */
__CARL9170FW_FEATURE_NUM
};
#define DBG_MAGIC "DBG\0"
#define CHK_MAGIC "CHK\0"
#define TXSQ_MAGIC "TXSQ"
+#define WOL_MAGIC "WOL\0"
#define LAST_MAGIC "LAST"
#define CARL9170FW_SET_DAY(d) (((d) - 1) % 31)
(sizeof(struct carl9170fw_desc_head))
#define CARL9170FW_OTUS_DESC_MIN_VER 6
-#define CARL9170FW_OTUS_DESC_CUR_VER 6
+#define CARL9170FW_OTUS_DESC_CUR_VER 7
struct carl9170fw_otus_desc {
struct carl9170fw_desc_head head;
__le32 feature_set;
#define CARL9170FW_TXSQ_DESC_SIZE \
(sizeof(struct carl9170fw_txsq_desc))
+#define CARL9170FW_WOL_DESC_MIN_VER 1
+#define CARL9170FW_WOL_DESC_CUR_VER 1
+struct carl9170fw_wol_desc {
+ struct carl9170fw_desc_head head;
+
+ __le32 supported_triggers; /* CARL9170_WOL_ */
+} __packed;
+#define CARL9170FW_WOL_DESC_SIZE \
+ (sizeof(struct carl9170fw_wol_desc))
+
#define CARL9170FW_LAST_DESC_MIN_VER 1
#define CARL9170FW_LAST_DESC_CUR_VER 2
struct carl9170fw_last_desc {
* Register map, hardware-specific definitions
*
* Copyright 2008, Johannes Berg <johannes@sipsolutions.net>
- * Copyright 2009, 2010, Christian Lamparter <chunkeey@googlemail.com>
+ * Copyright 2009-2011 Christian Lamparter <chunkeey@googlemail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
#define AR9170_MAC_REG_DMA_WLAN_STATUS (AR9170_MAC_REG_BASE + 0xd38)
#define AR9170_MAC_REG_DMA_STATUS (AR9170_MAC_REG_BASE + 0xd3c)
-
+#define AR9170_MAC_REG_DMA_TXQ_LAST_ADDR (AR9170_MAC_REG_BASE + 0xd40)
+#define AR9170_MAC_REG_DMA_TXQ0_LAST_ADDR (AR9170_MAC_REG_BASE + 0xd40)
+#define AR9170_MAC_REG_DMA_TXQ1_LAST_ADDR (AR9170_MAC_REG_BASE + 0xd44)
+#define AR9170_MAC_REG_DMA_TXQ2_LAST_ADDR (AR9170_MAC_REG_BASE + 0xd48)
+#define AR9170_MAC_REG_DMA_TXQ3_LAST_ADDR (AR9170_MAC_REG_BASE + 0xd4c)
+#define AR9170_MAC_REG_DMA_TXQ4_LAST_ADDR (AR9170_MAC_REG_BASE + 0xd50)
+#define AR9170_MAC_REG_DMA_TXQ0Q1_LEN (AR9170_MAC_REG_BASE + 0xd54)
+#define AR9170_MAC_REG_DMA_TXQ2Q3_LEN (AR9170_MAC_REG_BASE + 0xd58)
+#define AR9170_MAC_REG_DMA_TXQ4_LEN (AR9170_MAC_REG_BASE + 0xd5c)
+
+#define AR9170_MAC_REG_DMA_TXQX_LAST_ADDR (AR9170_MAC_REG_BASE + 0xd74)
+#define AR9170_MAC_REG_DMA_TXQX_FAIL_ADDR (AR9170_MAC_REG_BASE + 0xd78)
#define AR9170_MAC_REG_TXRX_MPI (AR9170_MAC_REG_BASE + 0xd7c)
#define AR9170_MAC_TXRX_MPI_TX_MPI_MASK 0x0000000f
#define AR9170_MAC_TXRX_MPI_TX_TO_MASK 0x0000fff0
carl9170_zap_queues(ar);
/* reset QoS defaults */
- CARL9170_FILL_QUEUE(ar->edcf[0], 3, 15, 1023, 0); /* BEST EFFORT */
- CARL9170_FILL_QUEUE(ar->edcf[1], 2, 7, 15, 94); /* VIDEO */
- CARL9170_FILL_QUEUE(ar->edcf[2], 2, 3, 7, 47); /* VOICE */
- CARL9170_FILL_QUEUE(ar->edcf[3], 7, 15, 1023, 0); /* BACKGROUND */
- CARL9170_FILL_QUEUE(ar->edcf[4], 2, 3, 7, 0); /* SPECIAL */
+ CARL9170_FILL_QUEUE(ar->edcf[AR9170_TXQ_VO], 2, 3, 7, 47);
+ CARL9170_FILL_QUEUE(ar->edcf[AR9170_TXQ_VI], 2, 7, 15, 94);
+ CARL9170_FILL_QUEUE(ar->edcf[AR9170_TXQ_BE], 3, 15, 1023, 0);
+ CARL9170_FILL_QUEUE(ar->edcf[AR9170_TXQ_BK], 7, 15, 1023, 0);
+ CARL9170_FILL_QUEUE(ar->edcf[AR9170_TXQ_SPECIAL], 2, 3, 7, 0);
ar->current_factor = ar->current_density = -1;
/* "The first key is unique." */
IEEE80211_HW_REPORTS_TX_ACK_STATUS |
IEEE80211_HW_SUPPORTS_PS |
IEEE80211_HW_PS_NULLFUNC_STACK |
+ IEEE80211_HW_NEED_DTIM_PERIOD |
IEEE80211_HW_SIGNAL_DBM;
if (!modparam_noht) {
}
}
- /* FIXME: PSM does not work in 5GHz Band */
- if (channel->band == IEEE80211_BAND_5GHZ)
- ar->ps.off_override |= PS_OFF_5GHZ;
- else
- ar->ps.off_override &= ~PS_OFF_5GHZ;
-
ar->channel = channel;
ar->ht_settings = new_ht;
return 0;
#ifndef __CARL9170_SHARED_VERSION_H
#define __CARL9170_SHARED_VERSION_H
#define CARL9170FW_VERSION_YEAR 11
-#define CARL9170FW_VERSION_MONTH 1
-#define CARL9170FW_VERSION_DAY 22
-#define CARL9170FW_VERSION_GIT "1.9.2"
+#define CARL9170FW_VERSION_MONTH 6
+#define CARL9170FW_VERSION_DAY 30
+#define CARL9170FW_VERSION_GIT "1.9.4"
#endif /* __CARL9170_SHARED_VERSION_H */
* RX/TX meta descriptor format
*
* Copyright 2008, Johannes Berg <johannes@sipsolutions.net>
- * Copyright 2009, 2010, Christian Lamparter <chunkeey@googlemail.com>
+ * Copyright 2009-2011 Christian Lamparter <chunkeey@googlemail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
struct carl9170_tx_superframe {
struct carl9170_tx_superdesc s;
struct ar9170_tx_frame f;
-} __packed;
+} __packed __aligned(4);
#endif /* __CARL9170FW__ */
struct _carl9170_tx_superdesc s;
struct _ar9170_tx_hwdesc f;
u8 frame_data[0];
-} __packed;
+} __packed __aligned(4);
#define CARL9170_TX_SUPERDESC_LEN 24
#define AR9170_TX_HWDESC_LEN 8
(t->DAidx & 0xc0) >> 6;
}
-enum ar9170_txq {
- AR9170_TXQ_BE,
-
- AR9170_TXQ_VI,
- AR9170_TXQ_VO,
- AR9170_TXQ_BK,
-
- __AR9170_NUM_TXQ,
-};
-
/*
* This is an workaround for several undocumented bugs.
* Don't mess with the QoS/AC <-> HW Queue map, if you don't
* result, this makes the device pretty much useless
* for any serious 802.11n setup.
*/
-static const u8 ar9170_qmap[__AR9170_NUM_TXQ] = { 2, 1, 0, 3 };
+enum ar9170_txq {
+ AR9170_TXQ_BK = 0, /* TXQ0 */
+ AR9170_TXQ_BE, /* TXQ1 */
+ AR9170_TXQ_VI, /* TXQ2 */
+ AR9170_TXQ_VO, /* TXQ3 */
+
+ __AR9170_NUM_TXQ,
+};
#define AR9170_TXQ_DEPTH 32
dma_rx(ring, &slot);
update_max_used_slots(ring, ++used_slots);
}
+ wmb();
ops->set_current_rxslot(ring, slot);
ring->current_slot = slot;
}
"unused", /* HOST_INTERRUPT_COALESCING */
"undefined",
"CARD_DISABLE_PHY_OFF",
- "MSDU_TX_RATES" "undefined",
+ "MSDU_TX_RATES",
"undefined",
"SET_STATION_STAT_BITS",
"CLEAR_STATIONS_STAT_BITS",
iwlagn-objs += iwl-1000.o
iwlagn-objs += iwl-2000.o
iwlagn-objs += iwl-pci.o
+iwlagn-objs += iwl-trans.o
iwlagn-$(CONFIG_IWLWIFI_DEBUGFS) += iwl-debugfs.o
iwlagn-$(CONFIG_IWLWIFI_DEVICE_TRACING) += iwl-devtrace.o
priv->hw_params.ht40_channel = BIT(IEEE80211_BAND_2GHZ) |
BIT(IEEE80211_BAND_5GHZ);
- priv->hw_params.rx_wrt_ptr_reg = FH_RSCSR_CHNL0_WPTR;
priv->hw_params.tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant);
if (priv->cfg->rx_with_siso_diversity)
static const struct iwl_ops iwl1000_ops = {
.lib = &iwl1000_lib,
- .hcmd = &iwlagn_hcmd,
.utils = &iwlagn_hcmd_utils,
};
#define IWL2030_UCODE_API_MAX 5
#define IWL2000_UCODE_API_MAX 5
#define IWL105_UCODE_API_MAX 5
+#define IWL135_UCODE_API_MAX 5
/* Lowest firmware API version supported */
#define IWL2030_UCODE_API_MIN 5
#define IWL2000_UCODE_API_MIN 5
#define IWL105_UCODE_API_MIN 5
+#define IWL135_UCODE_API_MIN 5
#define IWL2030_FW_PRE "iwlwifi-2030-"
#define IWL2030_MODULE_FIRMWARE(api) IWL2030_FW_PRE __stringify(api) ".ucode"
#define IWL105_FW_PRE "iwlwifi-105-"
#define IWL105_MODULE_FIRMWARE(api) IWL105_FW_PRE __stringify(api) ".ucode"
+#define IWL135_FW_PRE "iwlwifi-135-"
+#define IWL135_MODULE_FIRMWARE(api) IWL135_FW_PRE #api ".ucode"
+
static void iwl2000_set_ct_threshold(struct iwl_priv *priv)
{
/* want Celsius */
priv->hw_params.ht40_channel = BIT(IEEE80211_BAND_2GHZ) |
BIT(IEEE80211_BAND_5GHZ);
- priv->hw_params.rx_wrt_ptr_reg = FH_RSCSR_CHNL0_WPTR;
priv->hw_params.tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant);
if (priv->cfg->rx_with_siso_diversity)
static const struct iwl_ops iwl2000_ops = {
.lib = &iwl2000_lib,
- .hcmd = &iwlagn_hcmd,
.utils = &iwlagn_hcmd_utils,
};
static const struct iwl_ops iwl2030_ops = {
.lib = &iwl2000_lib,
- .hcmd = &iwlagn_bt_hcmd,
.utils = &iwlagn_hcmd_utils,
};
static const struct iwl_ops iwl105_ops = {
.lib = &iwl2000_lib,
- .hcmd = &iwlagn_hcmd,
.utils = &iwlagn_hcmd_utils,
};
static const struct iwl_ops iwl135_ops = {
.lib = &iwl2000_lib,
- .hcmd = &iwlagn_bt_hcmd,
.utils = &iwlagn_hcmd_utils,
};
};
#define IWL_DEVICE_135 \
- .fw_name_pre = IWL105_FW_PRE, \
- .ucode_api_max = IWL105_UCODE_API_MAX, \
- .ucode_api_min = IWL105_UCODE_API_MIN, \
+ .fw_name_pre = IWL135_FW_PRE, \
+ .ucode_api_max = IWL135_UCODE_API_MAX, \
+ .ucode_api_min = IWL135_UCODE_API_MIN, \
.eeprom_ver = EEPROM_2000_EEPROM_VERSION, \
.eeprom_calib_ver = EEPROM_2000_TX_POWER_VERSION, \
.ops = &iwl135_ops, \
.rx_with_siso_diversity = true \
struct iwl_cfg iwl135_bg_cfg = {
- .name = "105 Series 1x1 BG/BT",
+ .name = "135 Series 1x1 BG/BT",
IWL_DEVICE_135,
};
struct iwl_cfg iwl135_bgn_cfg = {
- .name = "105 Series 1x1 BGN/BT",
+ .name = "135 Series 1x1 BGN/BT",
IWL_DEVICE_135,
.ht_params = &iwl2000_ht_params,
};
MODULE_FIRMWARE(IWL2000_MODULE_FIRMWARE(IWL2000_UCODE_API_MAX));
MODULE_FIRMWARE(IWL2030_MODULE_FIRMWARE(IWL2030_UCODE_API_MAX));
MODULE_FIRMWARE(IWL105_MODULE_FIRMWARE(IWL105_UCODE_API_MAX));
+MODULE_FIRMWARE(IWL135_MODULE_FIRMWARE(IWL135_UCODE_API_MAX));
priv->hw_params.ht40_channel = BIT(IEEE80211_BAND_2GHZ) |
BIT(IEEE80211_BAND_5GHZ);
- priv->hw_params.rx_wrt_ptr_reg = FH_RSCSR_CHNL0_WPTR;
priv->hw_params.tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant);
priv->hw_params.rx_chains_num = num_of_ant(priv->cfg->valid_rx_ant);
priv->hw_params.ht40_channel = BIT(IEEE80211_BAND_2GHZ) |
BIT(IEEE80211_BAND_5GHZ);
- priv->hw_params.rx_wrt_ptr_reg = FH_RSCSR_CHNL0_WPTR;
priv->hw_params.tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant);
priv->hw_params.rx_chains_num = num_of_ant(priv->cfg->valid_rx_ant);
static const struct iwl_ops iwl5000_ops = {
.lib = &iwl5000_lib,
- .hcmd = &iwlagn_hcmd,
.utils = &iwlagn_hcmd_utils,
};
static const struct iwl_ops iwl5150_ops = {
.lib = &iwl5150_lib,
- .hcmd = &iwlagn_hcmd,
.utils = &iwlagn_hcmd_utils,
};
priv->hw_params.ht40_channel = BIT(IEEE80211_BAND_2GHZ) |
BIT(IEEE80211_BAND_5GHZ);
- priv->hw_params.rx_wrt_ptr_reg = FH_RSCSR_CHNL0_WPTR;
priv->hw_params.tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant);
if (priv->cfg->rx_with_siso_diversity)
static const struct iwl_ops iwl6000_ops = {
.lib = &iwl6000_lib,
- .hcmd = &iwlagn_hcmd,
.utils = &iwlagn_hcmd_utils,
};
static const struct iwl_ops iwl6050_ops = {
.lib = &iwl6000_lib,
- .hcmd = &iwlagn_hcmd,
.utils = &iwlagn_hcmd_utils,
.nic = &iwl6050_nic_ops,
};
static const struct iwl_ops iwl6150_ops = {
.lib = &iwl6000_lib,
- .hcmd = &iwlagn_hcmd,
.utils = &iwlagn_hcmd_utils,
.nic = &iwl6150_nic_ops,
};
static const struct iwl_ops iwl6030_ops = {
.lib = &iwl6030_lib,
- .hcmd = &iwlagn_bt_hcmd,
.utils = &iwlagn_hcmd_utils,
};
return max_rssi - agc - IWLAGN_RSSI_OFFSET;
}
-static int iwlagn_set_pan_params(struct iwl_priv *priv)
+int iwlagn_set_pan_params(struct iwl_priv *priv)
{
struct iwl_wipan_params_cmd cmd;
struct iwl_rxon_context *ctx_bss, *ctx_pan;
return ret;
}
-struct iwl_hcmd_ops iwlagn_hcmd = {
- .set_rxon_chain = iwlagn_set_rxon_chain,
- .set_tx_ant = iwlagn_send_tx_ant_config,
- .send_bt_config = iwl_send_bt_config,
- .set_pan_params = iwlagn_set_pan_params,
-};
-
-struct iwl_hcmd_ops iwlagn_bt_hcmd = {
- .set_rxon_chain = iwlagn_set_rxon_chain,
- .set_tx_ant = iwlagn_send_tx_ant_config,
- .send_bt_config = iwlagn_send_advance_bt_config,
- .set_pan_params = iwlagn_set_pan_params,
-};
-
struct iwl_hcmd_utils_ops iwlagn_hcmd_utils = {
.build_addsta_hcmd = iwlagn_build_addsta_hcmd,
.gain_computation = iwlagn_gain_computation,
/* the rest are 0 by default */
};
-void iwlagn_rx_queue_reset(struct iwl_priv *priv, struct iwl_rx_queue *rxq)
-{
- unsigned long flags;
- int i;
- spin_lock_irqsave(&rxq->lock, flags);
- INIT_LIST_HEAD(&rxq->rx_free);
- INIT_LIST_HEAD(&rxq->rx_used);
- /* Fill the rx_used queue with _all_ of the Rx buffers */
- for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) {
- /* In the reset function, these buffers may have been allocated
- * to an SKB, so we need to unmap and free potential storage */
- if (rxq->pool[i].page != NULL) {
- dma_unmap_page(priv->bus.dev, rxq->pool[i].page_dma,
- PAGE_SIZE << priv->hw_params.rx_page_order,
- DMA_FROM_DEVICE);
- __iwl_free_pages(priv, rxq->pool[i].page);
- rxq->pool[i].page = NULL;
- }
- list_add_tail(&rxq->pool[i].list, &rxq->rx_used);
- }
-
- for (i = 0; i < RX_QUEUE_SIZE; i++)
- rxq->queue[i] = NULL;
-
- /* Set us so that we have processed and used all buffers, but have
- * not restocked the Rx queue with fresh buffers */
- rxq->read = rxq->write = 0;
- rxq->write_actual = 0;
- rxq->free_count = 0;
- spin_unlock_irqrestore(&rxq->lock, flags);
-}
-
int iwlagn_rx_init(struct iwl_priv *priv, struct iwl_rx_queue *rxq)
{
u32 rb_size;
{
unsigned long flags;
struct iwl_rx_queue *rxq = &priv->rxq;
- int ret;
/* nic_init */
spin_lock_irqsave(&priv->lock, flags);
priv->cfg->ops->lib->apm_ops.config(priv);
/* Allocate the RX queue, or reset if it is already allocated */
- if (!rxq->bd) {
- ret = iwl_rx_queue_alloc(priv);
- if (ret) {
- IWL_ERR(priv, "Unable to initialize Rx queue\n");
- return -ENOMEM;
- }
- } else
- iwlagn_rx_queue_reset(priv, rxq);
+ priv->trans.ops->rx_init(priv);
iwlagn_rx_replenish(priv);
spin_unlock_irqrestore(&priv->lock, flags);
/* Allocate or reset and init all Tx and Command queues */
- if (!priv->txq) {
- ret = iwlagn_txq_ctx_alloc(priv);
- if (ret)
- return ret;
- } else
- iwlagn_txq_ctx_reset(priv);
+ if (priv->trans.ops->tx_init(priv))
+ return -ENOMEM;
if (priv->cfg->base_params->shadow_reg_enable) {
/* enable shadow regs in HW */
iwlagn_rx_queue_restock(priv);
}
-/* Assumes that the skb field of the buffers in 'pool' is kept accurate.
- * If an SKB has been detached, the POOL needs to have its SKB set to NULL
- * This free routine walks the list of POOL entries and if SKB is set to
- * non NULL it is unmapped and freed
- */
-void iwlagn_rx_queue_free(struct iwl_priv *priv, struct iwl_rx_queue *rxq)
-{
- int i;
- for (i = 0; i < RX_QUEUE_SIZE + RX_FREE_BUFFERS; i++) {
- if (rxq->pool[i].page != NULL) {
- dma_unmap_page(priv->bus.dev, rxq->pool[i].page_dma,
- PAGE_SIZE << priv->hw_params.rx_page_order,
- DMA_FROM_DEVICE);
- __iwl_free_pages(priv, rxq->pool[i].page);
- rxq->pool[i].page = NULL;
- }
- }
-
- dma_free_coherent(priv->bus.dev, 4 * RX_QUEUE_SIZE,
- rxq->bd, rxq->bd_dma);
- dma_free_coherent(priv->bus.dev,
- sizeof(struct iwl_rb_status),
- rxq->rb_stts, rxq->rb_stts_dma);
- rxq->bd = NULL;
- rxq->rb_stts = NULL;
-}
-
int iwlagn_rxq_stop(struct iwl_priv *priv)
{
/* set scan bit here for PAN params */
set_bit(STATUS_SCAN_HW, &priv->status);
- if (priv->cfg->ops->hcmd->set_pan_params) {
- ret = priv->cfg->ops->hcmd->set_pan_params(priv);
- if (ret)
- return ret;
- }
+ ret = iwlagn_set_pan_params(priv);
+ if (ret)
+ return ret;
ret = iwl_send_cmd_sync(priv, &cmd);
if (ret) {
clear_bit(STATUS_SCAN_HW, &priv->status);
- if (priv->cfg->ops->hcmd->set_pan_params)
- priv->cfg->ops->hcmd->set_pan_params(priv);
+ iwlagn_set_pan_params(priv);
}
return ret;
if (ret)
return ret;
- if (priv->cfg->ops->hcmd->set_pan_params) {
- ret = priv->cfg->ops->hcmd->set_pan_params(priv);
- if (ret)
- return ret;
- }
+ ret = iwlagn_set_pan_params(priv);
+ if (ret)
+ return ret;
if (new_assoc)
return iwlagn_rxon_connect(priv, ctx);
* set up the SM PS mode to OFF if an HT channel is
* configured.
*/
- if (priv->cfg->ops->hcmd->set_rxon_chain)
- for_each_context(priv, ctx)
- priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx);
+ for_each_context(priv, ctx)
+ iwlagn_set_rxon_chain(priv, ctx);
}
if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
iwl_set_rxon_ht(priv, &priv->current_ht_config);
}
- if (priv->cfg->ops->hcmd->set_rxon_chain)
- priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx);
+ iwlagn_set_rxon_chain(priv, ctx);
if (bss_conf->use_cts_prot && (priv->band != IEEE80211_BAND_5GHZ))
ctx->staging.flags |= RXON_FLG_TGG_PROTECT_MSK;
if (memcmp(&ctx->staging, &ctx->active, sizeof(ctx->staging)))
iwlagn_commit_rxon(priv, ctx);
- if (priv->cfg->ops->hcmd->set_pan_params)
- priv->cfg->ops->hcmd->set_pan_params(priv);
+ iwlagn_set_pan_params(priv);
}
iwl_free_txq_mem(priv);
}
-/**
- * iwlagn_txq_ctx_alloc - allocate TX queue context
- * Allocate all Tx DMA structures and initialize them
- *
- * @param priv
- * @return error code
- */
-int iwlagn_txq_ctx_alloc(struct iwl_priv *priv)
-{
- int ret;
- int txq_id, slots_num;
- unsigned long flags;
-
- /* Free all tx/cmd queues and keep-warm buffer */
- iwlagn_hw_txq_ctx_free(priv);
-
- ret = iwlagn_alloc_dma_ptr(priv, &priv->scd_bc_tbls,
- priv->hw_params.scd_bc_tbls_size);
- if (ret) {
- IWL_ERR(priv, "Scheduler BC Table allocation failed\n");
- goto error_bc_tbls;
- }
- /* Alloc keep-warm buffer */
- ret = iwlagn_alloc_dma_ptr(priv, &priv->kw, IWL_KW_SIZE);
- if (ret) {
- IWL_ERR(priv, "Keep Warm allocation failed\n");
- goto error_kw;
- }
-
- /* allocate tx queue structure */
- ret = iwl_alloc_txq_mem(priv);
- if (ret)
- goto error;
-
- spin_lock_irqsave(&priv->lock, flags);
-
- /* Turn off all Tx DMA fifos */
- iwlagn_txq_set_sched(priv, 0);
-
- /* Tell NIC where to find the "keep warm" buffer */
- iwl_write_direct32(priv, FH_KW_MEM_ADDR_REG, priv->kw.dma >> 4);
-
- spin_unlock_irqrestore(&priv->lock, flags);
-
- /* Alloc and init all Tx queues, including the command queue (#4/#9) */
- for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++) {
- slots_num = (txq_id == priv->cmd_queue) ?
- TFD_CMD_SLOTS : TFD_TX_CMD_SLOTS;
- ret = iwl_tx_queue_init(priv, &priv->txq[txq_id], slots_num,
- txq_id);
- if (ret) {
- IWL_ERR(priv, "Tx %d queue init failed\n", txq_id);
- goto error;
- }
- }
-
- return ret;
-
- error:
- iwlagn_hw_txq_ctx_free(priv);
- iwlagn_free_dma_ptr(priv, &priv->kw);
- error_kw:
- iwlagn_free_dma_ptr(priv, &priv->scd_bc_tbls);
- error_bc_tbls:
- return ret;
-}
-
-void iwlagn_txq_ctx_reset(struct iwl_priv *priv)
-{
- int txq_id, slots_num;
- unsigned long flags;
-
- spin_lock_irqsave(&priv->lock, flags);
-
- /* Turn off all Tx DMA fifos */
- iwlagn_txq_set_sched(priv, 0);
-
- /* Tell NIC where to find the "keep warm" buffer */
- iwl_write_direct32(priv, FH_KW_MEM_ADDR_REG, priv->kw.dma >> 4);
-
- spin_unlock_irqrestore(&priv->lock, flags);
-
- /* Alloc and init all Tx queues, including the command queue (#4) */
- for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++) {
- slots_num = txq_id == priv->cmd_queue ?
- TFD_CMD_SLOTS : TFD_TX_CMD_SLOTS;
- iwl_tx_queue_reset(priv, &priv->txq[txq_id], slots_num, txq_id);
- }
-}
-
/**
* iwlagn_txq_ctx_stop - Stop all Tx DMA channels
*/
spin_lock_irqsave(&priv->lock, flags);
priv->scd_base_addr = iwl_read_prph(priv, IWLAGN_SCD_SRAM_BASE_ADDR);
- a = priv->scd_base_addr + IWLAGN_SCD_CONTEXT_DATA_OFFSET;
- for (; a < priv->scd_base_addr + IWLAGN_SCD_TX_STTS_BITMAP_OFFSET;
+ a = priv->scd_base_addr + IWLAGN_SCD_CONTEXT_MEM_LOWER_BOUND;
+ /* reset conext data memory */
+ for (; a < priv->scd_base_addr + IWLAGN_SCD_CONTEXT_MEM_UPPER_BOUND;
a += 4)
iwl_write_targ_mem(priv, a, 0);
- for (; a < priv->scd_base_addr + IWLAGN_SCD_TRANSLATE_TBL_OFFSET;
+ /* reset tx status memory */
+ for (; a < priv->scd_base_addr + IWLAGN_SCD_TX_STTS_MEM_UPPER_BOUND;
a += 4)
iwl_write_targ_mem(priv, a, 0);
for (; a < priv->scd_base_addr +
#include "iwl-agn-calib.h"
#include "iwl-agn.h"
#include "iwl-pci.h"
-
+#include "iwl-trans.h"
/******************************************************************************
*
{
struct iwl_rxon_context *ctx;
- if (priv->cfg->ops->hcmd->set_rxon_chain) {
- for_each_context(priv, ctx) {
- priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx);
- if (ctx->active.rx_chain != ctx->staging.rx_chain)
- iwlagn_commit_rxon(priv, ctx);
- }
+ for_each_context(priv, ctx) {
+ iwlagn_set_rxon_chain(priv, ctx);
+ if (ctx->active.rx_chain != ctx->staging.rx_chain)
+ iwlagn_commit_rxon(priv, ctx);
}
}
/* dont send host command if rf-kill is on */
if (!iwl_is_ready_rf(priv))
return;
- priv->cfg->ops->hcmd->send_bt_config(priv);
+ iwlagn_send_advance_bt_config(priv);
}
static void iwl_bg_bt_full_concurrency(struct work_struct *work)
* to avoid 3-wire collisions
*/
for_each_context(priv, ctx) {
- if (priv->cfg->ops->hcmd->set_rxon_chain)
- priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx);
+ iwlagn_set_rxon_chain(priv, ctx);
iwlagn_commit_rxon(priv, ctx);
}
- priv->cfg->ops->hcmd->send_bt_config(priv);
+ iwlagn_send_advance_bt_config(priv);
out:
mutex_unlock(&priv->mutex);
}
priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK;
priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT;
priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT;
- priv->cfg->ops->hcmd->send_bt_config(priv);
+ iwlagn_send_advance_bt_config(priv);
priv->bt_valid = IWLAGN_BT_VALID_ENABLE_FLAGS;
iwlagn_send_prio_tbl(priv);
BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
if (ret)
return ret;
+ } else {
+ /*
+ * default is 2-wire BT coexexistence support
+ */
+ iwl_send_bt_config(priv);
}
+
if (priv->hw_params.calib_rt_cfg)
iwlagn_send_calib_cfg_rt(priv, priv->hw_params.calib_rt_cfg);
priv->active_rate = IWL_RATES_MASK;
/* Configure Tx antenna selection based on H/W config */
- if (priv->cfg->ops->hcmd->set_tx_ant)
- priv->cfg->ops->hcmd->set_tx_ant(priv, priv->cfg->valid_tx_ant);
+ iwlagn_send_tx_ant_config(priv, priv->cfg->valid_tx_ant);
if (iwl_is_associated_ctx(ctx)) {
struct iwl_rxon_cmd *active_rxon =
for_each_context(priv, tmp)
iwl_connection_init_rx_config(priv, tmp);
- if (priv->cfg->ops->hcmd->set_rxon_chain)
- priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx);
- }
-
- if (!priv->cfg->bt_params || (priv->cfg->bt_params &&
- !priv->cfg->bt_params->advanced_bt_coexist)) {
- /*
- * default is 2-wire BT coexexistence support
- */
- priv->cfg->ops->hcmd->send_bt_config(priv);
+ iwlagn_set_rxon_chain(priv, ctx);
}
iwl_reset_run_time_calib(priv);
priv->rx_statistics_jiffies = jiffies;
/* Choose which receivers/antennas to use */
- if (priv->cfg->ops->hcmd->set_rxon_chain)
- priv->cfg->ops->hcmd->set_rxon_chain(priv,
- &priv->contexts[IWL_RXON_CTX_BSS]);
+ iwlagn_set_rxon_chain(priv, &priv->contexts[IWL_RXON_CTX_BSS]);
iwl_init_scan_params(priv);
priv->bus.ops->set_drv_data(&priv->bus, priv);
priv->bus.dev = priv->bus.ops->get_dev(&priv->bus);
+ iwl_trans_register(&priv->trans);
+
/* At this point both hw and priv are allocated. */
SET_IEEE80211_DEV(hw, priv->bus.dev);
iwl_dealloc_ucode(priv);
- if (priv->rxq.bd)
- iwlagn_rx_queue_free(priv, &priv->rxq);
+ priv->trans.ops->rx_free(priv);
iwlagn_hw_txq_ctx_free(priv);
iwl_eeprom_free(priv);
module_param_named(ack_check, iwlagn_mod_params.ack_check, bool, S_IRUGO);
MODULE_PARM_DESC(ack_check, "Check ack health (default: 0 [disabled])");
+module_param_named(wd_disable, iwlagn_mod_params.wd_disable, bool, S_IRUGO);
+MODULE_PARM_DESC(wd_disable,
+ "Disable stuck queue watchdog timer (default: 0 [enabled])");
+
/*
* set bt_coex_active to true, uCode will do kill/defer
* every time the priority line is asserted (BT is sending signals on the
u16 iwlagn_eeprom_calib_version(struct iwl_priv *priv);
const u8 *iwlagn_eeprom_query_addr(const struct iwl_priv *priv,
size_t offset);
-void iwlagn_rx_queue_reset(struct iwl_priv *priv, struct iwl_rx_queue *rxq);
int iwlagn_rx_init(struct iwl_priv *priv, struct iwl_rx_queue *rxq);
int iwlagn_hw_nic_init(struct iwl_priv *priv);
int iwlagn_wait_tx_queue_empty(struct iwl_priv *priv);
void iwlagn_rx_allocate(struct iwl_priv *priv, gfp_t priority);
void iwlagn_rx_replenish(struct iwl_priv *priv);
void iwlagn_rx_replenish_now(struct iwl_priv *priv);
-void iwlagn_rx_queue_free(struct iwl_priv *priv, struct iwl_rx_queue *rxq);
int iwlagn_rxq_stop(struct iwl_priv *priv);
int iwlagn_hwrate_to_mac80211_idx(u32 rate_n_flags, enum ieee80211_band band);
void iwl_setup_rx_handlers(struct iwl_priv *priv);
struct iwl_rx_mem_buffer *rxb);
int iwlagn_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index);
void iwlagn_hw_txq_ctx_free(struct iwl_priv *priv);
-int iwlagn_txq_ctx_alloc(struct iwl_priv *priv);
-void iwlagn_txq_ctx_reset(struct iwl_priv *priv);
void iwlagn_txq_ctx_stop(struct iwl_priv *priv);
static inline u32 iwl_tx_status_to_mac80211(u32 status)
/* hcmd */
int iwlagn_send_tx_ant_config(struct iwl_priv *priv, u8 valid_tx_ant);
int iwlagn_send_beacon_cmd(struct iwl_priv *priv);
+int iwlagn_set_pan_params(struct iwl_priv *priv);
/* bt coex */
void iwlagn_send_advance_bt_config(struct iwl_priv *priv);
rxon->flags |= RXON_FLG_CHANNEL_MODE_LEGACY;
}
- if (priv->cfg->ops->hcmd->set_rxon_chain)
- priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx);
+ iwlagn_set_rxon_chain(priv, ctx);
IWL_DEBUG_ASSOC(priv, "rxon flags 0x%X operation mode :0x%X "
"extension channel offset 0x%x\n",
{
iwl_connection_init_rx_config(priv, ctx);
- if (priv->cfg->ops->hcmd->set_rxon_chain)
- priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx);
+ iwlagn_set_rxon_chain(priv, ctx);
return iwlagn_commit_rxon(priv, ctx);
}
}
-int iwl_alloc_txq_mem(struct iwl_priv *priv)
-{
- if (!priv->txq)
- priv->txq = kzalloc(
- sizeof(struct iwl_tx_queue) *
- priv->cfg->base_params->num_of_queues,
- GFP_KERNEL);
- if (!priv->txq) {
- IWL_ERR(priv, "Not enough memory for txq\n");
- return -ENOMEM;
- }
- return 0;
-}
-
void iwl_free_txq_mem(struct iwl_priv *priv)
{
kfree(priv->txq);
{
unsigned int timeout = priv->cfg->base_params->wd_timeout;
- if (timeout)
+ if (timeout && !iwlagn_mod_params.wd_disable)
mod_timer(&priv->watchdog,
jiffies + msecs_to_jiffies(IWL_WD_TICK(timeout)));
else
#define IWL_CMD(x) case x: return #x
-struct iwl_hcmd_ops {
- void (*set_rxon_chain)(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx);
- int (*set_tx_ant)(struct iwl_priv *priv, u8 valid_tx_ant);
- void (*send_bt_config)(struct iwl_priv *priv);
- int (*set_pan_params)(struct iwl_priv *priv);
-};
-
struct iwl_hcmd_utils_ops {
u16 (*build_addsta_hcmd)(const struct iwl_addsta_cmd *cmd, u8 *data);
void (*gain_computation)(struct iwl_priv *priv,
struct iwl_ops {
const struct iwl_lib_ops *lib;
- const struct iwl_hcmd_ops *hcmd;
const struct iwl_hcmd_utils_ops *utils;
const struct iwl_nic_ops *nic;
};
int restart_fw; /* def: 1 = restart firmware */
bool plcp_check; /* def: true = enable plcp health check */
bool ack_check; /* def: false = disable ack health check */
+ bool wd_disable; /* def: false = enable stuck queue check */
bool bt_coex_active; /* def: true = enable bt coex */
int led_mode; /* def: 0 = system default */
bool no_sleep_autoadjust; /* def: true = disable autoadjust */
int iwl_mac_change_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
enum nl80211_iftype newtype, bool newp2p);
-int iwl_alloc_txq_mem(struct iwl_priv *priv);
void iwl_free_txq_mem(struct iwl_priv *priv);
#ifdef CONFIG_IWLWIFI_DEBUGFS
******************************************************/
void iwl_cmd_queue_free(struct iwl_priv *priv);
void iwl_cmd_queue_unmap(struct iwl_priv *priv);
-int iwl_rx_queue_alloc(struct iwl_priv *priv);
void iwl_rx_queue_update_write_ptr(struct iwl_priv *priv,
struct iwl_rx_queue *q);
int iwl_rx_queue_space(const struct iwl_rx_queue *q);
* TX
******************************************************/
void iwl_txq_update_write_ptr(struct iwl_priv *priv, struct iwl_tx_queue *txq);
-int iwl_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq,
- int slots_num, u32 txq_id);
-void iwl_tx_queue_reset(struct iwl_priv *priv, struct iwl_tx_queue *txq,
- int slots_num, u32 txq_id);
void iwl_tx_queue_free(struct iwl_priv *priv, int txq_id);
+int iwl_queue_init(struct iwl_priv *priv, struct iwl_queue *q,
+ int count, int slots_num, u32 id);
void iwl_tx_queue_unmap(struct iwl_priv *priv, int txq_id);
void iwl_setup_watchdog(struct iwl_priv *priv);
/*****************************************************
u16 max_rxq_size;
u16 max_rxq_log;
u32 rx_page_order;
- u32 rx_wrt_ptr_reg;
u8 max_stations;
u8 ht40_channel;
u8 max_beacon_itrvl; /* in 1024 ms */
unsigned int irq;
};
+struct iwl_trans;
+
+/**
+ * struct iwl_trans_ops - transport specific operations
+
+ * @rx_init: inits the rx memory, allocate it if needed
+ * @rx_free: frees the rx memory
+ * @tx_init:inits the tx memory, allocate if needed
+ */
+struct iwl_trans_ops {
+ int (*rx_init)(struct iwl_priv *priv);
+ void (*rx_free)(struct iwl_priv *priv);
+ int (*tx_init)(struct iwl_priv *priv);
+};
+
+struct iwl_trans {
+ const struct iwl_trans_ops *ops;
+};
+
struct iwl_priv {
/* ieee device used by generic ieee processing code */
struct mutex mutex;
struct iwl_bus bus; /* bus specific data */
+ struct iwl_trans trans;
/* microcode/device supports multiple contexts */
u8 valid_contexts;
/* command queue number */
u8 cmd_queue;
- u8 last_sync_cmd_id;
/* max number of station keys */
u8 sta_key_max_num;
int cmd_idx;
int ret;
+ lockdep_assert_held(&priv->mutex);
+
if (WARN_ON(cmd->flags & CMD_ASYNC))
return -EINVAL;
IWL_DEBUG_INFO(priv, "Attempting to send sync command %s\n",
get_cmd_string(cmd->id));
- if (test_and_set_bit(STATUS_HCMD_ACTIVE, &priv->status)) {
- IWL_ERR(priv, "STATUS_HCMD_ACTIVE already set while sending %s"
- ". Previous SYNC cmdn is %s\n",
- get_cmd_string(cmd->id),
- get_cmd_string(priv->last_sync_cmd_id));
- WARN_ON(1);
- } else {
- priv->last_sync_cmd_id = cmd->id;
- }
-
+ set_bit(STATUS_HCMD_ACTIVE, &priv->status);
IWL_DEBUG_INFO(priv, "Setting HCMD_ACTIVE for command %s\n",
get_cmd_string(cmd->id));
#include "iwl-agn.h"
#include "iwl-core.h"
#include "iwl-io.h"
+#include "iwl-trans.h"
/* PCI registers */
#define PCI_CFG_RETRY_TIMEOUT 0x041
u16 pci_lnk_ctl;
struct pci_dev *pci_dev = IWL_BUS_GET_PCI_DEV(bus);
- pos = pci_find_capability(pci_dev, PCI_CAP_ID_EXP);
+ pos = pci_pcie_cap(pci_dev);
pci_read_config_word(pci_dev, pos + PCI_EXP_LNKCTL, &pci_lnk_ctl);
return pci_lnk_ctl;
}
* the scheduler (especially for queue #4/#9, the command queue, otherwise
* the driver can't issue commands!):
*/
+#define SCD_MEM_LOWER_BOUND (0x0000)
/**
* Max Tx window size is the max number of contiguous TFDs that the scheduler
#define IWLAGN_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS (16)
#define IWLAGN_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK (0x007F0000)
-#define IWLAGN_SCD_CONTEXT_DATA_OFFSET (0x600)
-#define IWLAGN_SCD_TX_STTS_BITMAP_OFFSET (0x7B1)
-#define IWLAGN_SCD_TRANSLATE_TBL_OFFSET (0x7E0)
+/* Context Data */
+#define IWLAGN_SCD_CONTEXT_MEM_LOWER_BOUND (SCD_MEM_LOWER_BOUND + 0x600)
+#define IWLAGN_SCD_CONTEXT_MEM_UPPER_BOUND (SCD_MEM_LOWER_BOUND + 0x6A0)
+
+/* Tx status */
+#define IWLAGN_SCD_TX_STTS_MEM_LOWER_BOUND (SCD_MEM_LOWER_BOUND + 0x6A0)
+#define IWLAGN_SCD_TX_STTS_MEM_UPPER_BOUND (SCD_MEM_LOWER_BOUND + 0x7E0)
+
+/* Translation Data */
+#define IWLAGN_SCD_TRANS_TBL_MEM_LOWER_BOUND (SCD_MEM_LOWER_BOUND + 0x7E0)
+#define IWLAGN_SCD_TRANS_TBL_MEM_UPPER_BOUND (SCD_MEM_LOWER_BOUND + 0x808)
#define IWLAGN_SCD_CONTEXT_QUEUE_OFFSET(x)\
- (IWLAGN_SCD_CONTEXT_DATA_OFFSET + ((x) * 8))
+ (IWLAGN_SCD_CONTEXT_MEM_LOWER_BOUND + ((x) * 8))
#define IWLAGN_SCD_TRANSLATE_TBL_OFFSET_QUEUE(x) \
- ((IWLAGN_SCD_TRANSLATE_TBL_OFFSET + ((x) * 2)) & 0xfffc)
+ ((IWLAGN_SCD_TRANS_TBL_MEM_LOWER_BOUND + ((x) * 2)) & 0xfffc)
#define IWLAGN_SCD_QUEUECHAIN_SEL_ALL(priv) \
(((1<<(priv)->hw_params.max_txq_num) - 1) &\
void iwl_rx_queue_update_write_ptr(struct iwl_priv *priv, struct iwl_rx_queue *q)
{
unsigned long flags;
- u32 rx_wrt_ptr_reg = priv->hw_params.rx_wrt_ptr_reg;
u32 reg;
spin_lock_irqsave(&q->lock, flags);
/* shadow register enabled */
/* Device expects a multiple of 8 */
q->write_actual = (q->write & ~0x7);
- iwl_write32(priv, rx_wrt_ptr_reg, q->write_actual);
+ iwl_write32(priv, FH_RSCSR_CHNL0_WPTR, q->write_actual);
} else {
/* If power-saving is in use, make sure device is awake */
if (test_bit(STATUS_POWER_PMI, &priv->status)) {
}
q->write_actual = (q->write & ~0x7);
- iwl_write_direct32(priv, rx_wrt_ptr_reg,
+ iwl_write_direct32(priv, FH_RSCSR_CHNL0_WPTR,
q->write_actual);
/* Else device is assumed to be awake */
} else {
/* Device expects a multiple of 8 */
q->write_actual = (q->write & ~0x7);
- iwl_write_direct32(priv, rx_wrt_ptr_reg,
+ iwl_write_direct32(priv, FH_RSCSR_CHNL0_WPTR,
q->write_actual);
}
}
spin_unlock_irqrestore(&q->lock, flags);
}
-int iwl_rx_queue_alloc(struct iwl_priv *priv)
-{
- struct iwl_rx_queue *rxq = &priv->rxq;
- struct device *dev = priv->bus.dev;
- int i;
-
- spin_lock_init(&rxq->lock);
- INIT_LIST_HEAD(&rxq->rx_free);
- INIT_LIST_HEAD(&rxq->rx_used);
-
- /* Alloc the circular buffer of Read Buffer Descriptors (RBDs) */
- rxq->bd = dma_alloc_coherent(dev, 4 * RX_QUEUE_SIZE, &rxq->bd_dma,
- GFP_KERNEL);
- if (!rxq->bd)
- goto err_bd;
-
- rxq->rb_stts = dma_alloc_coherent(dev, sizeof(struct iwl_rb_status),
- &rxq->rb_stts_dma, GFP_KERNEL);
- if (!rxq->rb_stts)
- goto err_rb;
-
- /* Fill the rx_used queue with _all_ of the Rx buffers */
- for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++)
- list_add_tail(&rxq->pool[i].list, &rxq->rx_used);
-
- /* Set us so that we have processed and used all buffers, but have
- * not restocked the Rx queue with fresh buffers */
- rxq->read = rxq->write = 0;
- rxq->write_actual = 0;
- rxq->free_count = 0;
- rxq->need_update = 0;
- return 0;
-
-err_rb:
- dma_free_coherent(dev, 4 * RX_QUEUE_SIZE, rxq->bd,
- rxq->bd_dma);
-err_bd:
- return -ENOMEM;
-}
-
/******************************************************************************
*
* Generic RX handler implementations
#include <linux/types.h>
-/* Commands from user space to kernel space(IWL_TM_CMD_ID_APP2DEV_XX) and
+/*
+ * Commands from user space to kernel space(IWL_TM_CMD_ID_APP2DEV_XX) and
* from and kernel space to user space(IWL_TM_CMD_ID_DEV2APP_XX).
- * The command ID is carried with IWL_TM_ATTR_COMMAND. There are three types of
- * of command from user space and two types of command from kernel space.
- * See below.
+ * The command ID is carried with IWL_TM_ATTR_COMMAND.
+ *
+ * @IWL_TM_CMD_APP2DEV_UCODE:
+ * commands from user application to the uCode,
+ * the actual uCode host command ID is carried with
+ * IWL_TM_ATTR_UCODE_CMD_ID
+ *
+ * @IWL_TM_CMD_APP2DEV_REG_READ32:
+ * @IWL_TM_CMD_APP2DEV_REG_WRITE32:
+ * @IWL_TM_CMD_APP2DEV_REG_WRITE8:
+ * commands from user applicaiton to access register
+ *
+ * @IWL_TM_CMD_APP2DEV_GET_DEVICENAME: retrieve device name
+ * @IWL_TM_CMD_APP2DEV_LOAD_INIT_FW: load initial uCode image
+ * @IWL_TM_CMD_APP2DEV_CFG_INIT_CALIB: perform calibration
+ * @IWL_TM_CMD_APP2DEV_LOAD_RUNTIME_FW: load runtime uCode image
+ * @IWL_TM_CMD_APP2DEV_GET_EEPROM: request EEPROM data
+ * @IWL_TM_CMD_APP2DEV_FIXRATE_REQ: set fix MCS
+ * commands fom user space for pure driver level operations
+ *
+ * @IWL_TM_CMD_APP2DEV_BEGIN_TRACE:
+ * @IWL_TM_CMD_APP2DEV_END_TRACE:
+ * @IWL_TM_CMD_APP2DEV_READ_TRACE:
+ * commands fom user space for uCode trace operations
+ *
+ * @IWL_TM_CMD_DEV2APP_SYNC_RSP:
+ * commands from kernel space to carry the synchronous response
+ * to user application
+ * @IWL_TM_CMD_DEV2APP_UCODE_RX_PKT:
+ * commands from kernel space to multicast the spontaneous messages
+ * to user application
+ * @IWL_TM_CMD_DEV2APP_EEPROM_RSP:
+ * commands from kernel space to carry the eeprom response
+ * to user application
*/
enum iwl_tm_cmd_t {
- /* commands from user application to the uCode,
- * the actual uCode host command ID is carried with
- * IWL_TM_ATTR_UCODE_CMD_ID */
- IWL_TM_CMD_APP2DEV_UCODE = 1,
-
- /* commands from user applicaiton to access register */
- IWL_TM_CMD_APP2DEV_REG_READ32,
- IWL_TM_CMD_APP2DEV_REG_WRITE32,
- IWL_TM_CMD_APP2DEV_REG_WRITE8,
-
- /* commands fom user space for pure driver level operations */
- IWL_TM_CMD_APP2DEV_GET_DEVICENAME,
- IWL_TM_CMD_APP2DEV_LOAD_INIT_FW,
- IWL_TM_CMD_APP2DEV_CFG_INIT_CALIB,
- IWL_TM_CMD_APP2DEV_LOAD_RUNTIME_FW,
- IWL_TM_CMD_APP2DEV_GET_EEPROM,
- IWL_TM_CMD_APP2DEV_FIXRATE_REQ,
- /* if there is other new command for the driver layer operation,
- * append them here */
-
- /* commands fom user space for uCode trace operations */
- IWL_TM_CMD_APP2DEV_BEGIN_TRACE,
- IWL_TM_CMD_APP2DEV_END_TRACE,
- IWL_TM_CMD_APP2DEV_READ_TRACE,
-
- /* commands from kernel space to carry the synchronous response
- * to user application */
- IWL_TM_CMD_DEV2APP_SYNC_RSP,
-
- /* commands from kernel space to multicast the spontaneous messages
- * to user application */
- IWL_TM_CMD_DEV2APP_UCODE_RX_PKT,
-
- /* commands from kernel space to carry the eeprom response
- * to user application */
- IWL_TM_CMD_DEV2APP_EEPROM_RSP,
-
- IWL_TM_CMD_MAX,
+ IWL_TM_CMD_APP2DEV_UCODE = 1,
+ IWL_TM_CMD_APP2DEV_REG_READ32 = 2,
+ IWL_TM_CMD_APP2DEV_REG_WRITE32 = 3,
+ IWL_TM_CMD_APP2DEV_REG_WRITE8 = 4,
+ IWL_TM_CMD_APP2DEV_GET_DEVICENAME = 5,
+ IWL_TM_CMD_APP2DEV_LOAD_INIT_FW = 6,
+ IWL_TM_CMD_APP2DEV_CFG_INIT_CALIB = 7,
+ IWL_TM_CMD_APP2DEV_LOAD_RUNTIME_FW = 8,
+ IWL_TM_CMD_APP2DEV_GET_EEPROM = 9,
+ IWL_TM_CMD_APP2DEV_FIXRATE_REQ = 10,
+ IWL_TM_CMD_APP2DEV_BEGIN_TRACE = 11,
+ IWL_TM_CMD_APP2DEV_END_TRACE = 12,
+ IWL_TM_CMD_APP2DEV_READ_TRACE = 13,
+ IWL_TM_CMD_DEV2APP_SYNC_RSP = 14,
+ IWL_TM_CMD_DEV2APP_UCODE_RX_PKT = 15,
+ IWL_TM_CMD_DEV2APP_EEPROM_RSP = 16,
+ IWL_TM_CMD_MAX = 17,
};
+/*
+ * Atrribute filed in testmode command
+ * See enum iwl_tm_cmd_t.
+ *
+ * @IWL_TM_ATTR_NOT_APPLICABLE:
+ * The attribute is not applicable or invalid
+ * @IWL_TM_ATTR_COMMAND:
+ * From user space to kernel space:
+ * the command either destines to ucode, driver, or register;
+ * From kernel space to user space:
+ * the command either carries synchronous response,
+ * or the spontaneous message multicast from the device;
+ *
+ * @IWL_TM_ATTR_UCODE_CMD_ID:
+ * @IWL_TM_ATTR_UCODE_CMD_DATA:
+ * When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_UCODE,
+ * The mandatory fields are :
+ * IWL_TM_ATTR_UCODE_CMD_ID for recognizable command ID;
+ * IWL_TM_ATTR_COMMAND_FLAG for the flags of the commands;
+ * The optional fields are:
+ * IWL_TM_ATTR_UCODE_CMD_DATA for the actual command payload
+ * to the ucode
+ *
+ * @IWL_TM_ATTR_REG_OFFSET:
+ * @IWL_TM_ATTR_REG_VALUE8:
+ * @IWL_TM_ATTR_REG_VALUE32:
+ * When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_REG_XXX,
+ * The mandatory fields are:
+ * IWL_TM_ATTR_REG_OFFSET for the offset of the target register;
+ * IWL_TM_ATTR_REG_VALUE8 or IWL_TM_ATTR_REG_VALUE32 for value
+ *
+ * @IWL_TM_ATTR_SYNC_RSP:
+ * When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_DEV2APP_SYNC_RSP,
+ * The mandatory fields are:
+ * IWL_TM_ATTR_SYNC_RSP for the data content responding to the user
+ * application command
+ *
+ * @IWL_TM_ATTR_UCODE_RX_PKT:
+ * When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_DEV2APP_UCODE_RX_PKT,
+ * The mandatory fields are:
+ * IWL_TM_ATTR_UCODE_RX_PKT for the data content multicast to the user
+ * application
+ *
+ * @IWL_TM_ATTR_EEPROM:
+ * When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_DEV2APP_EEPROM,
+ * The mandatory fields are:
+ * IWL_TM_ATTR_EEPROM for the data content responging to the user
+ * application
+ *
+ * @IWL_TM_ATTR_TRACE_ADDR:
+ * @IWL_TM_ATTR_TRACE_SIZE:
+ * @IWL_TM_ATTR_TRACE_DUMP:
+ * When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_XXX_TRACE,
+ * The mandatory fields are:
+ * IWL_TM_ATTR_MEM_TRACE_ADDR for the trace address
+ * IWL_TM_ATTR_MEM_TRACE_SIZE for the trace buffer size
+ * IWL_TM_ATTR_MEM_TRACE_DUMP for the trace dump
+ *
+ * @IWL_TM_ATTR_FIXRATE:
+ * When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_FIXRATE_REQ,
+ * The mandatory fields are:
+ * IWL_TM_ATTR_FIXRATE for the fixed rate
+ *
+ */
enum iwl_tm_attr_t {
- IWL_TM_ATTR_NOT_APPLICABLE = 0,
-
- /* From user space to kernel space:
- * the command either destines to ucode, driver, or register;
- * See enum iwl_tm_cmd_t.
- *
- * From kernel space to user space:
- * the command either carries synchronous response,
- * or the spontaneous message multicast from the device;
- * See enum iwl_tm_cmd_t. */
- IWL_TM_ATTR_COMMAND,
-
- /* When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_UCODE,
- * The mandatory fields are :
- * IWL_TM_ATTR_UCODE_CMD_ID for recognizable command ID;
- * IWL_TM_ATTR_COMMAND_FLAG for the flags of the commands;
- * The optional fields are:
- * IWL_TM_ATTR_UCODE_CMD_DATA for the actual command payload
- * to the ucode */
- IWL_TM_ATTR_UCODE_CMD_ID,
- IWL_TM_ATTR_UCODE_CMD_DATA,
-
- /* When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_REG_XXX,
- * The mandatory fields are:
- * IWL_TM_ATTR_REG_OFFSET for the offset of the target register;
- * IWL_TM_ATTR_REG_VALUE8 or IWL_TM_ATTR_REG_VALUE32 for value */
- IWL_TM_ATTR_REG_OFFSET,
- IWL_TM_ATTR_REG_VALUE8,
- IWL_TM_ATTR_REG_VALUE32,
-
- /* When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_DEV2APP_SYNC_RSP,
- * The mandatory fields are:
- * IWL_TM_ATTR_SYNC_RSP for the data content responding to the user
- * application command */
- IWL_TM_ATTR_SYNC_RSP,
- /* When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_DEV2APP_UCODE_RX_PKT,
- * The mandatory fields are:
- * IWL_TM_ATTR_UCODE_RX_PKT for the data content multicast to the user
- * application */
- IWL_TM_ATTR_UCODE_RX_PKT,
-
- /* When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_DEV2APP_EEPROM,
- * The mandatory fields are:
- * IWL_TM_ATTR_EEPROM for the data content responging to the user
- * application */
- IWL_TM_ATTR_EEPROM,
-
- /* When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_XXX_TRACE,
- * The mandatory fields are:
- * IWL_TM_ATTR_MEM_TRACE_ADDR for the trace address
- */
- IWL_TM_ATTR_TRACE_ADDR,
- IWL_TM_ATTR_TRACE_SIZE,
- IWL_TM_ATTR_TRACE_DUMP,
-
- /* When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_FIXRATE_REQ,
- * The mandatory fields are:
- * IWL_TM_ATTR_FIXRATE for the fixed rate
- */
- IWL_TM_ATTR_FIXRATE,
-
- IWL_TM_ATTR_MAX,
+ IWL_TM_ATTR_NOT_APPLICABLE = 0,
+ IWL_TM_ATTR_COMMAND = 1,
+ IWL_TM_ATTR_UCODE_CMD_ID = 2,
+ IWL_TM_ATTR_UCODE_CMD_DATA = 3,
+ IWL_TM_ATTR_REG_OFFSET = 4,
+ IWL_TM_ATTR_REG_VALUE8 = 5,
+ IWL_TM_ATTR_REG_VALUE32 = 6,
+ IWL_TM_ATTR_SYNC_RSP = 7,
+ IWL_TM_ATTR_UCODE_RX_PKT = 8,
+ IWL_TM_ATTR_EEPROM = 9,
+ IWL_TM_ATTR_TRACE_ADDR = 10,
+ IWL_TM_ATTR_TRACE_SIZE = 11,
+ IWL_TM_ATTR_TRACE_DUMP = 12,
+ IWL_TM_ATTR_FIXRATE = 13,
+ IWL_TM_ATTR_MAX = 14,
};
/* uCode trace buffer */
--- /dev/null
+/******************************************************************************
+ *
+ * This file is provided under a dual BSD/GPLv2 license. When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2007 - 2011 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
+ * USA
+ *
+ * The full GNU General Public License is included in this distribution
+ * in the file called LICENSE.GPL.
+ *
+ * Contact Information:
+ * Intel Linux Wireless <ilw@linux.intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ * BSD LICENSE
+ *
+ * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *****************************************************************************/
+#include "iwl-dev.h"
+#include "iwl-trans.h"
+#include "iwl-core.h"
+#include "iwl-helpers.h"
+/*TODO remove uneeded includes when the transport layer tx_free will be here */
+#include "iwl-agn.h"
+
+static int iwl_trans_rx_alloc(struct iwl_priv *priv)
+{
+ struct iwl_rx_queue *rxq = &priv->rxq;
+ struct device *dev = priv->bus.dev;
+
+ memset(&priv->rxq, 0, sizeof(priv->rxq));
+
+ spin_lock_init(&rxq->lock);
+ INIT_LIST_HEAD(&rxq->rx_free);
+ INIT_LIST_HEAD(&rxq->rx_used);
+
+ if (WARN_ON(rxq->bd || rxq->rb_stts))
+ return -EINVAL;
+
+ /* Allocate the circular buffer of Read Buffer Descriptors (RBDs) */
+ rxq->bd = dma_alloc_coherent(dev, sizeof(__le32) * RX_QUEUE_SIZE,
+ &rxq->bd_dma, GFP_KERNEL);
+ if (!rxq->bd)
+ goto err_bd;
+ memset(rxq->bd, 0, sizeof(__le32) * RX_QUEUE_SIZE);
+
+ /*Allocate the driver's pointer to receive buffer status */
+ rxq->rb_stts = dma_alloc_coherent(dev, sizeof(*rxq->rb_stts),
+ &rxq->rb_stts_dma, GFP_KERNEL);
+ if (!rxq->rb_stts)
+ goto err_rb_stts;
+ memset(rxq->rb_stts, 0, sizeof(*rxq->rb_stts));
+
+ return 0;
+
+err_rb_stts:
+ dma_free_coherent(dev, sizeof(__le32) * RX_QUEUE_SIZE,
+ rxq->bd, rxq->bd_dma);
+ memset(&rxq->bd_dma, 0, sizeof(rxq->bd_dma));
+ rxq->bd = NULL;
+err_bd:
+ return -ENOMEM;
+}
+
+static void iwl_trans_rxq_free_rx_bufs(struct iwl_priv *priv)
+{
+ struct iwl_rx_queue *rxq = &priv->rxq;
+ int i;
+
+ /* Fill the rx_used queue with _all_ of the Rx buffers */
+ for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) {
+ /* In the reset function, these buffers may have been allocated
+ * to an SKB, so we need to unmap and free potential storage */
+ if (rxq->pool[i].page != NULL) {
+ dma_unmap_page(priv->bus.dev, rxq->pool[i].page_dma,
+ PAGE_SIZE << priv->hw_params.rx_page_order,
+ DMA_FROM_DEVICE);
+ __iwl_free_pages(priv, rxq->pool[i].page);
+ rxq->pool[i].page = NULL;
+ }
+ list_add_tail(&rxq->pool[i].list, &rxq->rx_used);
+ }
+}
+
+static int iwl_trans_rx_init(struct iwl_priv *priv)
+{
+ struct iwl_rx_queue *rxq = &priv->rxq;
+ int i, err;
+ unsigned long flags;
+
+ if (!rxq->bd) {
+ err = iwl_trans_rx_alloc(priv);
+ if (err)
+ return err;
+ }
+
+ spin_lock_irqsave(&rxq->lock, flags);
+ INIT_LIST_HEAD(&rxq->rx_free);
+ INIT_LIST_HEAD(&rxq->rx_used);
+
+ iwl_trans_rxq_free_rx_bufs(priv);
+
+ for (i = 0; i < RX_QUEUE_SIZE; i++)
+ rxq->queue[i] = NULL;
+
+ /* Set us so that we have processed and used all buffers, but have
+ * not restocked the Rx queue with fresh buffers */
+ rxq->read = rxq->write = 0;
+ rxq->write_actual = 0;
+ rxq->free_count = 0;
+ spin_unlock_irqrestore(&rxq->lock, flags);
+
+ return 0;
+}
+
+static void iwl_trans_rx_free(struct iwl_priv *priv)
+{
+ struct iwl_rx_queue *rxq = &priv->rxq;
+ unsigned long flags;
+
+ /*if rxq->bd is NULL, it means that nothing has been allocated,
+ * exit now */
+ if (!rxq->bd) {
+ IWL_DEBUG_INFO(priv, "Free NULL rx context\n");
+ return;
+ }
+
+ spin_lock_irqsave(&rxq->lock, flags);
+ iwl_trans_rxq_free_rx_bufs(priv);
+ spin_unlock_irqrestore(&rxq->lock, flags);
+
+ dma_free_coherent(priv->bus.dev, sizeof(__le32) * RX_QUEUE_SIZE,
+ rxq->bd, rxq->bd_dma);
+ memset(&rxq->bd_dma, 0, sizeof(rxq->bd_dma));
+ rxq->bd = NULL;
+
+ if (rxq->rb_stts)
+ dma_free_coherent(priv->bus.dev,
+ sizeof(struct iwl_rb_status),
+ rxq->rb_stts, rxq->rb_stts_dma);
+ else
+ IWL_DEBUG_INFO(priv, "Free rxq->rb_stts which is NULL\n");
+ memset(&rxq->rb_stts_dma, 0, sizeof(rxq->rb_stts_dma));
+ rxq->rb_stts = NULL;
+}
+
+/* TODO:remove this code duplication */
+static inline int iwlagn_alloc_dma_ptr(struct iwl_priv *priv,
+ struct iwl_dma_ptr *ptr, size_t size)
+{
+ if (WARN_ON(ptr->addr))
+ return -EINVAL;
+
+ ptr->addr = dma_alloc_coherent(priv->bus.dev, size,
+ &ptr->dma, GFP_KERNEL);
+ if (!ptr->addr)
+ return -ENOMEM;
+ ptr->size = size;
+ return 0;
+}
+
+static int iwl_trans_txq_alloc(struct iwl_priv *priv, struct iwl_tx_queue *txq,
+ int slots_num, u32 txq_id)
+{
+ size_t tfd_sz = priv->hw_params.tfd_size * TFD_QUEUE_SIZE_MAX;
+ int i;
+
+ if (WARN_ON(txq->meta || txq->cmd || txq->txb || txq->tfds))
+ return -EINVAL;
+
+ txq->meta = kzalloc(sizeof(txq->meta[0]) * slots_num,
+ GFP_KERNEL);
+ txq->cmd = kzalloc(sizeof(txq->cmd[0]) * slots_num,
+ GFP_KERNEL);
+
+ if (!txq->meta || !txq->cmd)
+ goto error;
+
+ for (i = 0; i < slots_num; i++) {
+ txq->cmd[i] = kmalloc(sizeof(struct iwl_device_cmd),
+ GFP_KERNEL);
+ if (!txq->cmd[i])
+ goto error;
+ }
+
+ /* Alloc driver data array and TFD circular buffer */
+ /* Driver private data, only for Tx (not command) queues,
+ * not shared with device. */
+ if (txq_id != priv->cmd_queue) {
+ txq->txb = kzalloc(sizeof(txq->txb[0]) *
+ TFD_QUEUE_SIZE_MAX, GFP_KERNEL);
+ if (!txq->txb) {
+ IWL_ERR(priv, "kmalloc for auxiliary BD "
+ "structures failed\n");
+ goto error;
+ }
+ } else {
+ txq->txb = NULL;
+ }
+
+ /* Circular buffer of transmit frame descriptors (TFDs),
+ * shared with device */
+ txq->tfds = dma_alloc_coherent(priv->bus.dev, tfd_sz, &txq->q.dma_addr,
+ GFP_KERNEL);
+ if (!txq->tfds) {
+ IWL_ERR(priv, "dma_alloc_coherent(%zd) failed\n", tfd_sz);
+ goto error;
+ }
+ txq->q.id = txq_id;
+
+ return 0;
+error:
+ kfree(txq->txb);
+ txq->txb = NULL;
+ /* since txq->cmd has been zeroed,
+ * all non allocated cmd[i] will be NULL */
+ if (txq->cmd)
+ for (i = 0; i < slots_num; i++)
+ kfree(txq->cmd[i]);
+ kfree(txq->meta);
+ kfree(txq->cmd);
+ txq->meta = NULL;
+ txq->cmd = NULL;
+
+ return -ENOMEM;
+
+}
+
+static int iwl_trans_txq_init(struct iwl_priv *priv, struct iwl_tx_queue *txq,
+ int slots_num, u32 txq_id)
+{
+ int ret;
+
+ txq->need_update = 0;
+ memset(txq->meta, 0, sizeof(txq->meta[0]) * slots_num);
+
+ /*
+ * For the default queues 0-3, set up the swq_id
+ * already -- all others need to get one later
+ * (if they need one at all).
+ */
+ if (txq_id < 4)
+ iwl_set_swq_id(txq, txq_id, txq_id);
+
+ /* TFD_QUEUE_SIZE_MAX must be power-of-two size, otherwise
+ * iwl_queue_inc_wrap and iwl_queue_dec_wrap are broken. */
+ BUILD_BUG_ON(TFD_QUEUE_SIZE_MAX & (TFD_QUEUE_SIZE_MAX - 1));
+
+ /* Initialize queue's high/low-water marks, and head/tail indexes */
+ ret = iwl_queue_init(priv, &txq->q, TFD_QUEUE_SIZE_MAX, slots_num,
+ txq_id);
+ if (ret)
+ return ret;
+
+ /*
+ * Tell nic where to find circular buffer of Tx Frame Descriptors for
+ * given Tx queue, and enable the DMA channel used for that queue.
+ * Circular buffer (TFD queue in DRAM) physical base address */
+ iwl_write_direct32(priv, FH_MEM_CBBC_QUEUE(txq_id),
+ txq->q.dma_addr >> 8);
+
+ return 0;
+}
+
+/**
+ * iwl_trans_tx_alloc - allocate TX context
+ * Allocate all Tx DMA structures and initialize them
+ *
+ * @param priv
+ * @return error code
+ */
+static int iwl_trans_tx_alloc(struct iwl_priv *priv)
+{
+ int ret;
+ int txq_id, slots_num;
+
+ /*It is not allowed to alloc twice, so warn when this happens.
+ * We cannot rely on the previous allocation, so free and fail */
+ if (WARN_ON(priv->txq)) {
+ ret = -EINVAL;
+ goto error;
+ }
+
+ ret = iwlagn_alloc_dma_ptr(priv, &priv->scd_bc_tbls,
+ priv->hw_params.scd_bc_tbls_size);
+ if (ret) {
+ IWL_ERR(priv, "Scheduler BC Table allocation failed\n");
+ goto error;
+ }
+
+ /* Alloc keep-warm buffer */
+ ret = iwlagn_alloc_dma_ptr(priv, &priv->kw, IWL_KW_SIZE);
+ if (ret) {
+ IWL_ERR(priv, "Keep Warm allocation failed\n");
+ goto error;
+ }
+
+ priv->txq = kzalloc(sizeof(struct iwl_tx_queue) *
+ priv->cfg->base_params->num_of_queues, GFP_KERNEL);
+ if (!priv->txq) {
+ IWL_ERR(priv, "Not enough memory for txq\n");
+ ret = ENOMEM;
+ goto error;
+ }
+
+ /* Alloc and init all Tx queues, including the command queue (#4/#9) */
+ for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++) {
+ slots_num = (txq_id == priv->cmd_queue) ?
+ TFD_CMD_SLOTS : TFD_TX_CMD_SLOTS;
+ ret = iwl_trans_txq_alloc(priv, &priv->txq[txq_id], slots_num,
+ txq_id);
+ if (ret) {
+ IWL_ERR(priv, "Tx %d queue alloc failed\n", txq_id);
+ goto error;
+ }
+ }
+
+ return 0;
+
+error:
+ iwlagn_hw_txq_ctx_free(priv);
+
+ return ret;
+}
+static int iwl_trans_tx_init(struct iwl_priv *priv)
+{
+ int ret;
+ int txq_id, slots_num;
+ unsigned long flags;
+ bool alloc = false;
+
+ if (!priv->txq) {
+ ret = iwl_trans_tx_alloc(priv);
+ if (ret)
+ goto error;
+ alloc = true;
+ }
+
+ spin_lock_irqsave(&priv->lock, flags);
+
+ /* Turn off all Tx DMA fifos */
+ iwl_write_prph(priv, IWLAGN_SCD_TXFACT, 0);
+
+ /* Tell NIC where to find the "keep warm" buffer */
+ iwl_write_direct32(priv, FH_KW_MEM_ADDR_REG, priv->kw.dma >> 4);
+
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ /* Alloc and init all Tx queues, including the command queue (#4/#9) */
+ for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++) {
+ slots_num = (txq_id == priv->cmd_queue) ?
+ TFD_CMD_SLOTS : TFD_TX_CMD_SLOTS;
+ ret = iwl_trans_txq_init(priv, &priv->txq[txq_id], slots_num,
+ txq_id);
+ if (ret) {
+ IWL_ERR(priv, "Tx %d queue init failed\n", txq_id);
+ goto error;
+ }
+ }
+
+ return 0;
+error:
+ /*Upon error, free only if we allocated something */
+ if (alloc)
+ iwlagn_hw_txq_ctx_free(priv);
+ return ret;
+}
+
+static const struct iwl_trans_ops trans_ops = {
+ .rx_init = iwl_trans_rx_init,
+ .rx_free = iwl_trans_rx_free,
+
+ .tx_init = iwl_trans_tx_init,
+};
+
+void iwl_trans_register(struct iwl_trans *trans)
+{
+ trans->ops = &trans_ops;
+}
--- /dev/null
+/******************************************************************************
+ *
+ * This file is provided under a dual BSD/GPLv2 license. When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2007 - 2011 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
+ * USA
+ *
+ * The full GNU General Public License is included in this distribution
+ * in the file called LICENSE.GPL.
+ *
+ * Contact Information:
+ * Intel Linux Wireless <ilw@linux.intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ * BSD LICENSE
+ *
+ * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *****************************************************************************/
+
+void iwl_trans_register(struct iwl_trans *trans);
return 0;
}
-/*
- * Tell nic where to find circular buffer of Tx Frame Descriptors for
- * given Tx queue, and enable the DMA channel used for that queue.
- *
- * supports up to 16 Tx queues in DRAM, mapped to up to 8 Tx DMA
- * channels supported in hardware.
- */
-static int iwlagn_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq)
-{
- int txq_id = txq->q.id;
-
- /* Circular buffer (TFD queue in DRAM) physical base address */
- iwl_write_direct32(priv, FH_MEM_CBBC_QUEUE(txq_id),
- txq->q.dma_addr >> 8);
-
- return 0;
-}
-
/**
* iwl_tx_queue_unmap - Unmap any remaining DMA mappings and free skb's
*/
return s;
}
-
/**
* iwl_queue_init - Initialize queue's high/low-water and read/write indexes
*/
-static int iwl_queue_init(struct iwl_priv *priv, struct iwl_queue *q,
+int iwl_queue_init(struct iwl_priv *priv, struct iwl_queue *q,
int count, int slots_num, u32 id)
{
q->n_bd = count;
return 0;
}
-/**
- * iwl_tx_queue_alloc - Alloc driver data and TFD CB for one Tx/cmd queue
- */
-static int iwl_tx_queue_alloc(struct iwl_priv *priv,
- struct iwl_tx_queue *txq, u32 id)
-{
- struct device *dev = priv->bus.dev;
- size_t tfd_sz = priv->hw_params.tfd_size * TFD_QUEUE_SIZE_MAX;
-
- /* Driver private data, only for Tx (not command) queues,
- * not shared with device. */
- if (id != priv->cmd_queue) {
- txq->txb = kzalloc(sizeof(txq->txb[0]) *
- TFD_QUEUE_SIZE_MAX, GFP_KERNEL);
- if (!txq->txb) {
- IWL_ERR(priv, "kmalloc for auxiliary BD "
- "structures failed\n");
- goto error;
- }
- } else {
- txq->txb = NULL;
- }
-
- /* Circular buffer of transmit frame descriptors (TFDs),
- * shared with device */
- txq->tfds = dma_alloc_coherent(dev, tfd_sz, &txq->q.dma_addr,
- GFP_KERNEL);
- if (!txq->tfds) {
- IWL_ERR(priv, "dma_alloc_coherent(%zd) failed\n", tfd_sz);
- goto error;
- }
- txq->q.id = id;
-
- return 0;
-
- error:
- kfree(txq->txb);
- txq->txb = NULL;
-
- return -ENOMEM;
-}
-
-/**
- * iwl_tx_queue_init - Allocate and initialize one tx/cmd queue
- */
-int iwl_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq,
- int slots_num, u32 txq_id)
-{
- int i, len;
- int ret;
-
- txq->meta = kzalloc(sizeof(struct iwl_cmd_meta) * slots_num,
- GFP_KERNEL);
- txq->cmd = kzalloc(sizeof(struct iwl_device_cmd *) * slots_num,
- GFP_KERNEL);
-
- if (!txq->meta || !txq->cmd)
- goto out_free_arrays;
-
- len = sizeof(struct iwl_device_cmd);
- for (i = 0; i < slots_num; i++) {
- txq->cmd[i] = kmalloc(len, GFP_KERNEL);
- if (!txq->cmd[i])
- goto err;
- }
-
- /* Alloc driver data array and TFD circular buffer */
- ret = iwl_tx_queue_alloc(priv, txq, txq_id);
- if (ret)
- goto err;
-
- txq->need_update = 0;
-
- /*
- * For the default queues 0-3, set up the swq_id
- * already -- all others need to get one later
- * (if they need one at all).
- */
- if (txq_id < 4)
- iwl_set_swq_id(txq, txq_id, txq_id);
-
- /* TFD_QUEUE_SIZE_MAX must be power-of-two size, otherwise
- * iwl_queue_inc_wrap and iwl_queue_dec_wrap are broken. */
- BUILD_BUG_ON(TFD_QUEUE_SIZE_MAX & (TFD_QUEUE_SIZE_MAX - 1));
-
- /* Initialize queue's high/low-water marks, and head/tail indexes */
- ret = iwl_queue_init(priv, &txq->q, TFD_QUEUE_SIZE_MAX, slots_num, txq_id);
- if (ret)
- return ret;
-
- /* Tell device where to find queue */
- iwlagn_tx_queue_init(priv, txq);
-
- return 0;
-err:
- for (i = 0; i < slots_num; i++)
- kfree(txq->cmd[i]);
-out_free_arrays:
- kfree(txq->meta);
- kfree(txq->cmd);
-
- return -ENOMEM;
-}
-
-void iwl_tx_queue_reset(struct iwl_priv *priv, struct iwl_tx_queue *txq,
- int slots_num, u32 txq_id)
-{
- memset(txq->meta, 0, sizeof(struct iwl_cmd_meta) * slots_num);
-
- txq->need_update = 0;
-
- /* Initialize queue's high/low-water marks, and head/tail indexes */
- iwl_queue_init(priv, &txq->q, TFD_QUEUE_SIZE_MAX, slots_num, txq_id);
-
- /* Tell device where to find queue */
- iwlagn_tx_queue_init(priv, txq);
-}
-
/*************** HOST COMMAND QUEUE FUNCTIONS *****/
/**
#define SDIO_MP_AGGR_DEF_PKT_LIMIT 8
-#define SDIO_MP_TX_AGGR_DEF_BUF_SIZE (4096) /* 4K */
+#define SDIO_MP_TX_AGGR_DEF_BUF_SIZE (8192) /* 8K */
/* Multi port RX aggregation buffer size */
-#define SDIO_MP_RX_AGGR_DEF_BUF_SIZE (4096) /* 4K */
+#define SDIO_MP_RX_AGGR_DEF_BUF_SIZE (16384) /* 16K */
/* Misc. Config Register : Auto Re-enable interrupts */
#define AUTO_RE_ENABLE_INT BIT(4)
.set_antenna = rt2x00mac_set_antenna,
.get_antenna = rt2x00mac_get_antenna,
.get_ringparam = rt2x00mac_get_ringparam,
+ .tx_frames_pending = rt2x00mac_tx_frames_pending,
};
static const struct rt2x00lib_ops rt2400pci_rt2x00_ops = {
.set_antenna = rt2x00mac_set_antenna,
.get_antenna = rt2x00mac_get_antenna,
.get_ringparam = rt2x00mac_get_ringparam,
+ .tx_frames_pending = rt2x00mac_tx_frames_pending,
};
static const struct rt2x00lib_ops rt2500pci_rt2x00_ops = {
.set_antenna = rt2x00mac_set_antenna,
.get_antenna = rt2x00mac_get_antenna,
.get_ringparam = rt2x00mac_get_ringparam,
+ .tx_frames_pending = rt2x00mac_tx_frames_pending,
};
static const struct rt2x00lib_ops rt2500usb_rt2x00_ops = {
.flush = rt2x00mac_flush,
.get_survey = rt2800_get_survey,
.get_ringparam = rt2x00mac_get_ringparam,
+ .tx_frames_pending = rt2x00mac_tx_frames_pending,
};
static const struct rt2800_ops rt2800pci_rt2800_ops = {
#endif
#ifdef CONFIG_RT2800PCI_RT53XX
{ PCI_DEVICE(0x1814, 0x5390) },
+ { PCI_DEVICE(0x1814, 0x539f) },
#endif
{ 0, }
};
.flush = rt2x00mac_flush,
.get_survey = rt2800_get_survey,
.get_ringparam = rt2x00mac_get_ringparam,
+ .tx_frames_pending = rt2x00mac_tx_frames_pending,
};
static const struct rt2800_ops rt2800usb_rt2800_ops = {
{ USB_DEVICE(0x0df6, 0x0048) },
{ USB_DEVICE(0x0df6, 0x0051) },
{ USB_DEVICE(0x0df6, 0x005f) },
+ { USB_DEVICE(0x0df6, 0x0060) },
/* SMC */
{ USB_DEVICE(0x083a, 0x6618) },
{ USB_DEVICE(0x083a, 0x7511) },
{ USB_DEVICE(0x148f, 0x3572) },
/* Sitecom */
{ USB_DEVICE(0x0df6, 0x0041) },
+ { USB_DEVICE(0x0df6, 0x0062) },
/* Toshiba */
{ USB_DEVICE(0x0930, 0x0a07) },
/* Zinwell */
{ USB_DEVICE(0x0df6, 0x004a) },
{ USB_DEVICE(0x0df6, 0x004d) },
{ USB_DEVICE(0x0df6, 0x0053) },
- { USB_DEVICE(0x0df6, 0x0060) },
- { USB_DEVICE(0x0df6, 0x0062) },
/* SMC */
{ USB_DEVICE(0x083a, 0xa512) },
{ USB_DEVICE(0x083a, 0xc522) },
int rt2x00mac_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant);
void rt2x00mac_get_ringparam(struct ieee80211_hw *hw,
u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max);
+bool rt2x00mac_tx_frames_pending(struct ieee80211_hw *hw);
/*
* Driver allocation handlers.
}
}
-void rt2x00crypto_create_tx_descriptor(struct queue_entry *entry,
+void rt2x00crypto_create_tx_descriptor(struct rt2x00_dev *rt2x00dev,
+ struct sk_buff *skb,
struct txentry_desc *txdesc)
{
- struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
- struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(entry->skb);
+ struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
struct ieee80211_key_conf *hw_key = tx_info->control.hw_key;
if (!test_bit(CAPABILITY_HW_CRYPTO, &rt2x00dev->cap_flags) || !hw_key)
*/
#ifdef CONFIG_RT2X00_LIB_CRYPTO
enum cipher rt2x00crypto_key_to_cipher(struct ieee80211_key_conf *key);
-void rt2x00crypto_create_tx_descriptor(struct queue_entry *entry,
+void rt2x00crypto_create_tx_descriptor(struct rt2x00_dev *rt2x00dev,
+ struct sk_buff *skb,
struct txentry_desc *txdesc);
unsigned int rt2x00crypto_tx_overhead(struct rt2x00_dev *rt2x00dev,
struct sk_buff *skb);
*rx_max = rt2x00dev->rx->limit;
}
EXPORT_SYMBOL_GPL(rt2x00mac_get_ringparam);
+
+bool rt2x00mac_tx_frames_pending(struct ieee80211_hw *hw)
+{
+ struct rt2x00_dev *rt2x00dev = hw->priv;
+ struct data_queue *queue;
+
+ tx_queue_for_each(rt2x00dev, queue) {
+ if (!rt2x00queue_empty(queue))
+ return true;
+ }
+
+ return false;
+}
+EXPORT_SYMBOL_GPL(rt2x00mac_tx_frames_pending);
skb_pull(skb, l2pad);
}
-static void rt2x00queue_create_tx_descriptor_seq(struct queue_entry *entry,
+static void rt2x00queue_create_tx_descriptor_seq(struct rt2x00_dev *rt2x00dev,
+ struct sk_buff *skb,
struct txentry_desc *txdesc)
{
- struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(entry->skb);
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)entry->skb->data;
+ struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
struct rt2x00_intf *intf = vif_to_intf(tx_info->control.vif);
if (!(tx_info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ))
__set_bit(ENTRY_TXD_GENERATE_SEQ, &txdesc->flags);
- if (!test_bit(REQUIRE_SW_SEQNO, &entry->queue->rt2x00dev->cap_flags))
+ if (!test_bit(REQUIRE_SW_SEQNO, &rt2x00dev->cap_flags))
return;
/*
}
-static void rt2x00queue_create_tx_descriptor_plcp(struct queue_entry *entry,
+static void rt2x00queue_create_tx_descriptor_plcp(struct rt2x00_dev *rt2x00dev,
+ struct sk_buff *skb,
struct txentry_desc *txdesc,
const struct rt2x00_rate *hwrate)
{
- struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
- struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(entry->skb);
+ struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
struct ieee80211_tx_rate *txrate = &tx_info->control.rates[0];
unsigned int data_length;
unsigned int duration;
txdesc->u.plcp.ifs = IFS_SIFS;
/* Data length + CRC + Crypto overhead (IV/EIV/ICV/MIC) */
- data_length = entry->skb->len + 4;
- data_length += rt2x00crypto_tx_overhead(rt2x00dev, entry->skb);
+ data_length = skb->len + 4;
+ data_length += rt2x00crypto_tx_overhead(rt2x00dev, skb);
/*
* PLCP setup
}
}
-static void rt2x00queue_create_tx_descriptor_ht(struct queue_entry *entry,
+static void rt2x00queue_create_tx_descriptor_ht(struct rt2x00_dev *rt2x00dev,
+ struct sk_buff *skb,
struct txentry_desc *txdesc,
const struct rt2x00_rate *hwrate)
{
- struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(entry->skb);
+ struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
struct ieee80211_tx_rate *txrate = &tx_info->control.rates[0];
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)entry->skb->data;
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
if (tx_info->control.sta)
txdesc->u.ht.mpdu_density =
txdesc->u.ht.txop = TXOP_HTTXOP;
}
-static void rt2x00queue_create_tx_descriptor(struct queue_entry *entry,
+static void rt2x00queue_create_tx_descriptor(struct rt2x00_dev *rt2x00dev,
+ struct sk_buff *skb,
struct txentry_desc *txdesc)
{
- struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
- struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(entry->skb);
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)entry->skb->data;
+ struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
struct ieee80211_tx_rate *txrate = &tx_info->control.rates[0];
struct ieee80211_rate *rate;
const struct rt2x00_rate *hwrate = NULL;
/*
* Header and frame information.
*/
- txdesc->length = entry->skb->len;
- txdesc->header_length = ieee80211_get_hdrlen_from_skb(entry->skb);
+ txdesc->length = skb->len;
+ txdesc->header_length = ieee80211_get_hdrlen_from_skb(skb);
/*
* Check whether this frame is to be acked.
/*
* Apply TX descriptor handling by components
*/
- rt2x00crypto_create_tx_descriptor(entry, txdesc);
- rt2x00queue_create_tx_descriptor_seq(entry, txdesc);
+ rt2x00crypto_create_tx_descriptor(rt2x00dev, skb, txdesc);
+ rt2x00queue_create_tx_descriptor_seq(rt2x00dev, skb, txdesc);
if (test_bit(REQUIRE_HT_TX_DESC, &rt2x00dev->cap_flags))
- rt2x00queue_create_tx_descriptor_ht(entry, txdesc, hwrate);
+ rt2x00queue_create_tx_descriptor_ht(rt2x00dev, skb, txdesc,
+ hwrate);
else
- rt2x00queue_create_tx_descriptor_plcp(entry, txdesc, hwrate);
+ rt2x00queue_create_tx_descriptor_plcp(rt2x00dev, skb, txdesc,
+ hwrate);
}
static int rt2x00queue_write_tx_data(struct queue_entry *entry,
bool local)
{
struct ieee80211_tx_info *tx_info;
- struct queue_entry *entry = rt2x00queue_get_entry(queue, Q_INDEX);
+ struct queue_entry *entry;
struct txentry_desc txdesc;
struct skb_frame_desc *skbdesc;
u8 rate_idx, rate_flags;
-
- if (unlikely(rt2x00queue_full(queue))) {
- ERROR(queue->rt2x00dev,
- "Dropping frame due to full tx queue %d.\n", queue->qid);
- return -ENOBUFS;
- }
-
- if (unlikely(test_and_set_bit(ENTRY_OWNER_DEVICE_DATA,
- &entry->flags))) {
- ERROR(queue->rt2x00dev,
- "Arrived at non-free entry in the non-full queue %d.\n"
- "Please file bug report to %s.\n",
- queue->qid, DRV_PROJECT);
- return -EINVAL;
- }
+ int ret = 0;
/*
* Copy all TX descriptor information into txdesc,
* after that we are free to use the skb->cb array
* for our information.
*/
- entry->skb = skb;
- rt2x00queue_create_tx_descriptor(entry, &txdesc);
+ rt2x00queue_create_tx_descriptor(queue->rt2x00dev, skb, &txdesc);
/*
* All information is retrieved from the skb->cb array,
rate_flags = tx_info->control.rates[0].flags;
skbdesc = get_skb_frame_desc(skb);
memset(skbdesc, 0, sizeof(*skbdesc));
- skbdesc->entry = entry;
skbdesc->tx_rate_idx = rate_idx;
skbdesc->tx_rate_flags = rate_flags;
* for PCI devices.
*/
if (test_bit(REQUIRE_L2PAD, &queue->rt2x00dev->cap_flags))
- rt2x00queue_insert_l2pad(entry->skb, txdesc.header_length);
+ rt2x00queue_insert_l2pad(skb, txdesc.header_length);
else if (test_bit(REQUIRE_DMA, &queue->rt2x00dev->cap_flags))
- rt2x00queue_align_frame(entry->skb);
+ rt2x00queue_align_frame(skb);
+
+ spin_lock(&queue->tx_lock);
+
+ if (unlikely(rt2x00queue_full(queue))) {
+ ERROR(queue->rt2x00dev,
+ "Dropping frame due to full tx queue %d.\n", queue->qid);
+ ret = -ENOBUFS;
+ goto out;
+ }
+
+ entry = rt2x00queue_get_entry(queue, Q_INDEX);
+
+ if (unlikely(test_and_set_bit(ENTRY_OWNER_DEVICE_DATA,
+ &entry->flags))) {
+ ERROR(queue->rt2x00dev,
+ "Arrived at non-free entry in the non-full queue %d.\n"
+ "Please file bug report to %s.\n",
+ queue->qid, DRV_PROJECT);
+ ret = -EINVAL;
+ goto out;
+ }
+
+ skbdesc->entry = entry;
+ entry->skb = skb;
/*
* It could be possible that the queue was corrupted and this
if (unlikely(rt2x00queue_write_tx_data(entry, &txdesc))) {
clear_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags);
entry->skb = NULL;
- return -EIO;
+ ret = -EIO;
+ goto out;
}
set_bit(ENTRY_DATA_PENDING, &entry->flags);
rt2x00queue_write_tx_descriptor(entry, &txdesc);
rt2x00queue_kick_tx_queue(queue, &txdesc);
- return 0;
+out:
+ spin_unlock(&queue->tx_lock);
+ return ret;
}
int rt2x00queue_clear_beacon(struct rt2x00_dev *rt2x00dev,
* after that we are free to use the skb->cb array
* for our information.
*/
- rt2x00queue_create_tx_descriptor(intf->beacon, &txdesc);
+ rt2x00queue_create_tx_descriptor(rt2x00dev, intf->beacon->skb, &txdesc);
/*
* Fill in skb descriptor
struct data_queue *queue, enum data_queue_qid qid)
{
mutex_init(&queue->status_lock);
+ spin_lock_init(&queue->tx_lock);
spin_lock_init(&queue->index_lock);
queue->rt2x00dev = rt2x00dev;
* @flags: Entry flags, see &enum queue_entry_flags.
* @status_lock: The mutex for protecting the start/stop/flush
* handling on this queue.
+ * @tx_lock: Spinlock to serialize tx operations on this queue.
* @index_lock: Spinlock to protect index handling. Whenever @index, @index_done or
* @index_crypt needs to be changed this lock should be grabbed to prevent
* index corruption due to concurrency.
unsigned long flags;
struct mutex status_lock;
+ spinlock_t tx_lock;
spinlock_t index_lock;
unsigned int count;
.set_antenna = rt2x00mac_set_antenna,
.get_antenna = rt2x00mac_get_antenna,
.get_ringparam = rt2x00mac_get_ringparam,
+ .tx_frames_pending = rt2x00mac_tx_frames_pending,
};
static const struct rt2x00lib_ops rt61pci_rt2x00_ops = {
.set_antenna = rt2x00mac_set_antenna,
.get_antenna = rt2x00mac_get_antenna,
.get_ringparam = rt2x00mac_get_ringparam,
+ .tx_frames_pending = rt2x00mac_tx_frames_pending,
};
static const struct rt2x00lib_ops rt73usb_rt2x00_ops = {
{
struct ieee80211_hw *hw = dev_id;
struct rtl_priv *rtlpriv = rtl_priv(hw);
- struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
unsigned long flags;
u32 inta = 0;
u32 intb = 0;
- if (rtlpci->irq_enabled == 0)
- return IRQ_HANDLED;
-
spin_lock_irqsave(&rtlpriv->locks.irq_th_lock, flags);
/*read ISR: 4/8bytes */
bool first_init;
bool being_init_adapter;
bool init_ready;
- bool irq_enabled;
/*Tx */
struct rtl8192_tx_ring tx_ring[RTL_PCI_MAX_TX_QUEUE_COUNT];
rtl_write_dword(rtlpriv, REG_HIMR, rtlpci->irq_mask[0] & 0xFFFFFFFF);
rtl_write_dword(rtlpriv, REG_HIMRE, rtlpci->irq_mask[1] & 0xFFFFFFFF);
- rtlpci->irq_enabled = true;
}
void rtl92ce_disable_interrupt(struct ieee80211_hw *hw)
rtl_write_dword(rtlpriv, REG_HIMR, IMR8190_DISABLED);
rtl_write_dword(rtlpriv, REG_HIMRE, IMR8190_DISABLED);
- rtlpci->irq_enabled = false;
synchronize_irq(rtlpci->pdev->irq);
}
0xFFFFFFFF);
rtl_write_dword(rtlpriv, REG_HIMRE, rtlpci->irq_mask[1] &
0xFFFFFFFF);
- rtlpci->irq_enabled = true;
} else {
rtl_write_dword(rtlpriv, REG_HIMR, rtlusb->irq_mask[0] &
0xFFFFFFFF);
rtl_write_dword(rtlpriv, REG_HIMRE, rtlusb->irq_mask[1] &
0xFFFFFFFF);
- rtlusb->irq_enabled = true;
}
}
void rtl92c_disable_interrupt(struct ieee80211_hw *hw)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
- struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
- struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
- struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
rtl_write_dword(rtlpriv, REG_HIMR, IMR8190_DISABLED);
rtl_write_dword(rtlpriv, REG_HIMRE, IMR8190_DISABLED);
- if (IS_HARDWARE_TYPE_8192CE(rtlhal))
- rtlpci->irq_enabled = false;
- else if (IS_HARDWARE_TYPE_8192CU(rtlhal))
- rtlusb->irq_enabled = false;
}
void rtl92c_set_qos(struct ieee80211_hw *hw, int aci)
case HW_VAR_CORRECT_TSF: {
u8 btype_ibss = ((u8 *) (val))[0];
- if (btype_ibss == true)
+ if (btype_ibss)
_rtl92de_stop_tx_beacon(hw);
_rtl92de_set_bcn_ctrl_reg(hw, 0, BIT(3));
rtl_write_dword(rtlpriv, REG_TSFTR,
rtl_write_dword(rtlpriv, REG_TSFTR + 4,
(u32) ((mac->tsf >> 32) & 0xffffffff));
_rtl92de_set_bcn_ctrl_reg(hw, BIT(3), 0);
- if (btype_ibss == true)
+ if (btype_ibss)
_rtl92de_resume_tx_beacon(hw);
break;
RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
("Failed to download FW. Init HW "
"without FW..\n"));
- err = 1;
rtlhal->fw_ready = false;
+ return 1;
} else {
rtlhal->fw_ready = true;
}
if (((tmp_rega & BIT(11)) == BIT(11)))
break;
}
+ /* check that loop was successful. If not, exit now */
+ if (i == 10000) {
+ rtlpci->init_ready = false;
+ return 1;
+ }
}
}
rtlpci->init_ready = true;
if (rtlpriv->psc.rfpwr_state != ERFON)
return;
- if (check_bssid == true) {
+ if (check_bssid) {
reg_rcr |= (RCR_CBSSID_DATA | RCR_CBSSID_BCN);
rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_RCR, (u8 *)(®_rcr));
_rtl92de_set_bcn_ctrl_reg(hw, 0, BIT(4));
rtl_write_dword(rtlpriv, REG_HIMR, rtlpci->irq_mask[0] & 0xFFFFFFFF);
rtl_write_dword(rtlpriv, REG_HIMRE, rtlpci->irq_mask[1] & 0xFFFFFFFF);
- rtlpci->irq_enabled = true;
}
void rtl92de_disable_interrupt(struct ieee80211_hw *hw)
rtl_write_dword(rtlpriv, REG_HIMR, IMR8190_DISABLED);
rtl_write_dword(rtlpriv, REG_HIMRE, IMR8190_DISABLED);
- rtlpci->irq_enabled = false;
synchronize_irq(rtlpci->pdev->irq);
}
RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, ("Autoload OK\n"));
rtlefuse->autoload_failflag = false;
}
- if (rtlefuse->autoload_failflag == true) {
+ if (rtlefuse->autoload_failflag) {
RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
("RTL819X Not boot from eeprom, check it !!"));
return;
REG_MAC_PINMUX_CFG) & ~(BIT(3)));
u1tmp = rtl_read_byte(rtlpriv, REG_GPIO_IO_SEL);
e_rfpowerstate_toset = (u1tmp & BIT(3)) ? ERFON : ERFOFF;
- if ((ppsc->hwradiooff == true) && (e_rfpowerstate_toset == ERFON)) {
+ if (ppsc->hwradiooff && (e_rfpowerstate_toset == ERFON)) {
RT_TRACE(rtlpriv, COMP_RF, DBG_DMESG,
("GPIOChangeRF - HW Radio ON, RF ON\n"));
e_rfpowerstate_toset = ERFON;
break;
case LED_PIN_LED0:
ledcfg &= 0xf0;
- if (pcipriv->ledctl.led_opendrain == true)
+ if (pcipriv->ledctl.led_opendrain)
rtl_write_byte(rtlpriv, REG_LEDCFG2,
(ledcfg | BIT(1) | BIT(5) | BIT(6)));
else
enum rf_content content,
enum radio_path rfpath)
{
- int i, j;
+ int i;
u32 *radioa_array_table;
u32 *radiob_array_table;
u16 radioa_arraylen, radiob_arraylen;
mdelay(50);
} else if (radioa_array_table[i] == 0xfd) {
/* delay_ms(5); */
- for (j = 0; j < 100; j++)
- udelay(MAX_STALL_TIME);
+ mdelay(5);
} else if (radioa_array_table[i] == 0xfc) {
/* delay_ms(1); */
- for (j = 0; j < 20; j++)
- udelay(MAX_STALL_TIME);
-
+ mdelay(1);
} else if (radioa_array_table[i] == 0xfb) {
udelay(50);
} else if (radioa_array_table[i] == 0xfa) {
mdelay(50);
} else if (radiob_array_table[i] == 0xfd) {
/* delay_ms(5); */
- for (j = 0; j < 100; j++)
- udelay(MAX_STALL_TIME);
+ mdelay(5);
} else if (radiob_array_table[i] == 0xfc) {
/* delay_ms(1); */
- for (j = 0; j < 20; j++)
- udelay(MAX_STALL_TIME);
+ mdelay(1);
} else if (radiob_array_table[i] == 0xfb) {
udelay(50);
} else if (radiob_array_table[i] == 0xfa) {
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
- u8 i, value8;
+ u8 value8;
RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, ("==>\n"));
rtlhal->bandset = band;
rtl_write_byte(rtlpriv, (rtlhal->interfaceindex ==
0 ? REG_MAC0 : REG_MAC1), value8);
}
- for (i = 0; i < 20; i++)
- udelay(MAX_STALL_TIME);
+ mdelay(1);
RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, ("<==Switch Band OK.\n"));
}
RTPRINT(rtlpriv, FINIT, INIT_IQK,
("Delay %d ms for One shot, path A LOK & IQK.\n",
IQK_DELAY_TIME));
- udelay(IQK_DELAY_TIME * 1000);
+ mdelay(IQK_DELAY_TIME);
/* Check failed */
regeac = rtl_get_bbreg(hw, 0xeac, BMASKDWORD);
RTPRINT(rtlpriv, FINIT, INIT_IQK, ("0xeac = 0x%x\n", regeac));
RTPRINT(rtlpriv, FINIT, INIT_IQK,
("Delay %d ms for One shot, path A LOK & IQK.\n",
IQK_DELAY_TIME));
- udelay(IQK_DELAY_TIME * 1000 * 10);
+ mdelay(IQK_DELAY_TIME * 10);
/* Check failed */
regeac = rtl_get_bbreg(hw, 0xeac, BMASKDWORD);
RTPRINT(rtlpriv, FINIT, INIT_IQK, ("0xeac = 0x%x\n", regeac));
RTPRINT(rtlpriv, FINIT, INIT_IQK,
("Delay %d ms for One shot, path B LOK & IQK.\n",
IQK_DELAY_TIME));
- udelay(IQK_DELAY_TIME * 1000);
+ mdelay(IQK_DELAY_TIME);
/* Check failed */
regeac = rtl_get_bbreg(hw, 0xeac, BMASKDWORD);
RTPRINT(rtlpriv, FINIT, INIT_IQK, ("0xeac = 0x%x\n", regeac));
/* delay x ms */
RTPRINT(rtlpriv, FINIT, INIT_IQK,
("Delay %d ms for One shot, path B LOK & IQK.\n", 10));
- udelay(IQK_DELAY_TIME * 1000 * 10);
+ mdelay(IQK_DELAY_TIME * 10);
/* Check failed */
regeac = rtl_get_bbreg(hw, 0xeac, BMASKDWORD);
* PHY_REG.txt , and radio_a, radio_b.txt */
RTPRINT(rtlpriv, FINIT, INIT_IQK, ("IQK for 5G NORMAL:Start!!!\n"));
- udelay(IQK_DELAY_TIME * 1000 * 20);
+ mdelay(IQK_DELAY_TIME * 20);
if (t == 0) {
bbvalue = rtl_get_bbreg(hw, RFPGA0_RFMOD, BMASKDWORD);
RTPRINT(rtlpriv, FINIT, INIT_IQK, ("==>0x%08x\n", bbvalue));
if (rtlefuse->eeprom_regulatory != 0)
turbo_scanoff = true;
- if (mac->act_scanning == true) {
+ if (mac->act_scanning) {
tx_agc[RF90_PATH_A] = 0x3f3f3f3f;
tx_agc[RF90_PATH_B] = 0x3f3f3f3f;
if (turbo_scanoff) {
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct rtl_hal *rtlhal = &(rtlpriv->rtlhal);
u8 u1btmp;
- u8 direct = bmac0 == true ? BIT(3) | BIT(2) : BIT(3);
- u8 mac_reg = bmac0 == true ? REG_MAC1 : REG_MAC0;
- u8 mac_on_bit = bmac0 == true ? MAC1_ON : MAC0_ON;
+ u8 direct = bmac0 ? BIT(3) | BIT(2) : BIT(3);
+ u8 mac_reg = bmac0 ? REG_MAC1 : REG_MAC0;
+ u8 mac_on_bit = bmac0 ? MAC1_ON : MAC0_ON;
bool bresult = true; /* true: need to enable BB/RF power */
rtlhal->during_mac0init_radiob = false;
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct rtl_hal *rtlhal = &(rtlpriv->rtlhal);
u8 u1btmp;
- u8 direct = bmac0 == true ? BIT(3) | BIT(2) : BIT(3);
- u8 mac_reg = bmac0 == true ? REG_MAC1 : REG_MAC0;
- u8 mac_on_bit = bmac0 == true ? MAC1_ON : MAC0_ON;
+ u8 direct = bmac0 ? BIT(3) | BIT(2) : BIT(3);
+ u8 mac_reg = bmac0 ? REG_MAC1 : REG_MAC0;
+ u8 mac_on_bit = bmac0 ? MAC1_ON : MAC0_ON;
rtlhal->during_mac0init_radiob = false;
rtlhal->during_mac1init_radioa = false;
udelay(1);
switch (rfpath) {
case RF90_PATH_A:
- if (true_bpath == true)
+ if (true_bpath)
rtstatus = rtl92d_phy_config_rf_with_headerfile(
hw, radiob_txt,
(enum radio_path)rfpath);
(u8)
GET_RX_DESC_RXMCS(pdesc));
rx_status->mactime = GET_RX_DESC_TSFL(pdesc);
- if (phystatus == true) {
+ if (phystatus) {
p_drvinfo = (struct rx_fwinfo_92d *)(skb->data +
stats->rx_bufshift);
_rtl92de_translate_rx_signal_stuff(hw,
void rtl92de_set_desc(u8 *pdesc, bool istx, u8 desc_name, u8 *val)
{
- if (istx == true) {
+ if (istx) {
switch (desc_name) {
case HW_DESC_OWN:
wmb();
{
u32 ret = 0;
- if (istx == true) {
+ if (istx) {
switch (desc_name) {
case HW_DESC_OWN:
ret = GET_TX_DESC_OWN(p_desc);
rtl_write_dword(rtlpriv, INTA_MASK, rtlpci->irq_mask[0]);
/* Support Bit 32-37(Assign as Bit 0-5) interrupt setting now */
rtl_write_dword(rtlpriv, INTA_MASK + 4, rtlpci->irq_mask[1] & 0x3F);
-
- rtlpci->irq_enabled = true;
}
void rtl92se_disable_interrupt(struct ieee80211_hw *hw)
rtl_write_dword(rtlpriv, INTA_MASK, 0);
rtl_write_dword(rtlpriv, INTA_MASK + 4, 0);
- rtlpci->irq_enabled = false;
synchronize_irq(rtlpci->pdev->irq);
}
depends on WL12XX_MENU && GENERIC_HARDIRQS
depends on INET
select FW_LOADER
- select CRC7
---help---
This module adds support for wireless adapters based on TI wl1271 and
TI wl1273 chipsets. This module does *not* include support for wl1251.
config WL12XX_SPI
tristate "TI wl12xx SPI support"
depends on WL12XX && SPI_MASTER
+ select CRC7
---help---
This module adds support for the SPI interface of adapters using
TI wl12xx chipsets. Select this if your platform is using
#include <linux/module.h>
#include <linux/platform_device.h>
-#include <linux/crc7.h>
#include <linux/spi/spi.h>
#include <linux/slab.h>
mem_conf->tx_free_req = mem->min_req_tx_blocks;
mem_conf->rx_free_req = mem->min_req_rx_blocks;
mem_conf->tx_min = mem->tx_min;
+ mem_conf->fwlog_blocks = wl->conf.fwlog.mem_blocks;
ret = wl1271_cmd_configure(wl, ACX_MEM_CFG, mem_conf,
sizeof(*mem_conf));
return ret;
}
+int wl1271_acx_ps_rx_streaming(struct wl1271 *wl, bool enable)
+{
+ struct wl1271_acx_ps_rx_streaming *rx_streaming;
+ u32 conf_queues, enable_queues;
+ int i, ret = 0;
+
+ wl1271_debug(DEBUG_ACX, "acx ps rx streaming");
+
+ rx_streaming = kzalloc(sizeof(*rx_streaming), GFP_KERNEL);
+ if (!rx_streaming) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ conf_queues = wl->conf.rx_streaming.queues;
+ if (enable)
+ enable_queues = conf_queues;
+ else
+ enable_queues = 0;
+
+ for (i = 0; i < 8; i++) {
+ /*
+ * Skip non-changed queues, to avoid redundant acxs.
+ * this check assumes conf.rx_streaming.queues can't
+ * be changed while rx_streaming is enabled.
+ */
+ if (!(conf_queues & BIT(i)))
+ continue;
+
+ rx_streaming->tid = i;
+ rx_streaming->enable = enable_queues & BIT(i);
+ rx_streaming->period = wl->conf.rx_streaming.interval;
+ rx_streaming->timeout = wl->conf.rx_streaming.interval;
+
+ ret = wl1271_cmd_configure(wl, ACX_PS_RX_STREAMING,
+ rx_streaming,
+ sizeof(*rx_streaming));
+ if (ret < 0) {
+ wl1271_warning("acx ps rx streaming failed: %d", ret);
+ goto out;
+ }
+ }
+out:
+ kfree(rx_streaming);
+ return ret;
+}
+
int wl1271_acx_max_tx_retry(struct wl1271 *wl)
{
struct wl1271_acx_max_tx_retry *acx = NULL;
u8 tx_free_req;
u8 rx_free_req;
u8 tx_min;
+ u8 fwlog_blocks;
+ u8 padding[3];
} __packed;
struct wl1271_acx_mem_map {
u8 padding[3];
} __packed;
+struct wl1271_acx_ps_rx_streaming {
+ struct acx_header header;
+
+ u8 tid;
+ u8 enable;
+
+ /* interval between triggers (10-100 msec) */
+ u8 period;
+
+ /* timeout before first trigger (0-200 msec) */
+ u8 timeout;
+} __packed;
+
struct wl1271_acx_max_tx_retry {
struct acx_header header;
int wl1271_acx_set_ba_receiver_session(struct wl1271 *wl, u8 tid_index, u16 ssn,
bool enable);
int wl1271_acx_tsf_info(struct wl1271 *wl, u64 *mactime);
+int wl1271_acx_ps_rx_streaming(struct wl1271 *wl, bool enable);
int wl1271_acx_max_tx_retry(struct wl1271 *wl);
int wl1271_acx_config_ps(struct wl1271 *wl);
int wl1271_acx_set_inconnection_sta(struct wl1271 *wl, u8 *addr);
wl1271_write32(wl, ACX_REG_ECPU_CONTROL, cpu_ctrl);
}
+static unsigned int wl12xx_get_fw_ver_quirks(struct wl1271 *wl)
+{
+ unsigned int quirks = 0;
+ unsigned int *fw_ver = wl->chip.fw_ver;
+
+ /* Only for wl127x */
+ if ((fw_ver[FW_VER_CHIP] == FW_VER_CHIP_WL127X) &&
+ /* Check STA version */
+ (((fw_ver[FW_VER_IF_TYPE] == FW_VER_IF_TYPE_STA) &&
+ (fw_ver[FW_VER_MINOR] < FW_VER_MINOR_1_SPARE_STA_MIN)) ||
+ /* Check AP version */
+ ((fw_ver[FW_VER_IF_TYPE] == FW_VER_IF_TYPE_AP) &&
+ (fw_ver[FW_VER_MINOR] < FW_VER_MINOR_1_SPARE_AP_MIN))))
+ quirks |= WL12XX_QUIRK_USE_2_SPARE_BLOCKS;
+
+ /* Only new station firmwares support routing fw logs to the host */
+ if ((fw_ver[FW_VER_IF_TYPE] == FW_VER_IF_TYPE_STA) &&
+ (fw_ver[FW_VER_MINOR] < FW_VER_MINOR_FWLOG_STA_MIN))
+ quirks |= WL12XX_QUIRK_FWLOG_NOT_IMPLEMENTED;
+
+ /* This feature is not yet supported for AP mode */
+ if (fw_ver[FW_VER_IF_TYPE] == FW_VER_IF_TYPE_AP)
+ quirks |= WL12XX_QUIRK_FWLOG_NOT_IMPLEMENTED;
+
+ return quirks;
+}
+
static void wl1271_parse_fw_ver(struct wl1271 *wl)
{
int ret;
memset(wl->chip.fw_ver, 0, sizeof(wl->chip.fw_ver));
return;
}
+
+ /* Check if any quirks are needed with older fw versions */
+ wl->quirks |= wl12xx_get_fw_ver_quirks(wl);
}
static void wl1271_boot_fw_version(struct wl1271 *wl)
clk |= (wl->ref_clock << 1) << 4;
}
+ if (wl->quirks & WL12XX_QUIRK_LPD_MODE)
+ clk |= SCRATCH_ENABLE_LPD;
+
wl1271_write32(wl, DRPW_SCRATCH_START, clk);
wl1271_set_partition(wl, &part_table[PART_WORK]);
#include <linux/module.h>
#include <linux/platform_device.h>
-#include <linux/crc7.h>
#include <linux/spi/spi.h>
#include <linux/etherdevice.h>
#include <linux/ieee80211.h>
fail:
WARN_ON(1);
- ieee80211_queue_work(wl->hw, &wl->recovery_work);
+ wl12xx_queue_recovery_work(wl);
return ret;
}
/* Override the REF CLK from the NVS with the one from platform data */
gen_parms->general_params.ref_clock = wl->ref_clock;
+ /* LPD mode enable (bits 6-7) in WL1271 AP mode only */
+ if (wl->quirks & WL12XX_QUIRK_LPD_MODE)
+ gen_parms->general_params.general_settings |=
+ GENERAL_SETTINGS_DRPW_LPD;
+
ret = wl1271_cmd_test(wl, gen_parms, sizeof(*gen_parms), answer);
if (ret < 0) {
wl1271_warning("CMD_INI_FILE_GENERAL_PARAM failed");
ret = wl1271_cmd_wait_for_event_or_timeout(wl, mask);
if (ret != 0) {
- ieee80211_queue_work(wl->hw, &wl->recovery_work);
+ wl12xx_queue_recovery_work(wl);
return ret;
}
out:
return ret;
}
+
+int wl12xx_cmd_config_fwlog(struct wl1271 *wl)
+{
+ struct wl12xx_cmd_config_fwlog *cmd;
+ int ret = 0;
+
+ wl1271_debug(DEBUG_CMD, "cmd config firmware logger");
+
+ cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
+ if (!cmd) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ cmd->logger_mode = wl->conf.fwlog.mode;
+ cmd->log_severity = wl->conf.fwlog.severity;
+ cmd->timestamp = wl->conf.fwlog.timestamp;
+ cmd->output = wl->conf.fwlog.output;
+ cmd->threshold = wl->conf.fwlog.threshold;
+
+ ret = wl1271_cmd_send(wl, CMD_CONFIG_FWLOGGER, cmd, sizeof(*cmd), 0);
+ if (ret < 0) {
+ wl1271_error("failed to send config firmware logger command");
+ goto out_free;
+ }
+
+out_free:
+ kfree(cmd);
+
+out:
+ return ret;
+}
+
+int wl12xx_cmd_start_fwlog(struct wl1271 *wl)
+{
+ struct wl12xx_cmd_start_fwlog *cmd;
+ int ret = 0;
+
+ wl1271_debug(DEBUG_CMD, "cmd start firmware logger");
+
+ cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
+ if (!cmd) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ ret = wl1271_cmd_send(wl, CMD_START_FWLOGGER, cmd, sizeof(*cmd), 0);
+ if (ret < 0) {
+ wl1271_error("failed to send start firmware logger command");
+ goto out_free;
+ }
+
+out_free:
+ kfree(cmd);
+
+out:
+ return ret;
+}
+
+int wl12xx_cmd_stop_fwlog(struct wl1271 *wl)
+{
+ struct wl12xx_cmd_stop_fwlog *cmd;
+ int ret = 0;
+
+ wl1271_debug(DEBUG_CMD, "cmd stop firmware logger");
+
+ cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
+ if (!cmd) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ ret = wl1271_cmd_send(wl, CMD_STOP_FWLOGGER, cmd, sizeof(*cmd), 0);
+ if (ret < 0) {
+ wl1271_error("failed to send stop firmware logger command");
+ goto out_free;
+ }
+
+out_free:
+ kfree(cmd);
+
+out:
+ return ret;
+}
int wl1271_cmd_stop_bss(struct wl1271 *wl);
int wl1271_cmd_add_sta(struct wl1271 *wl, struct ieee80211_sta *sta, u8 hlid);
int wl1271_cmd_remove_sta(struct wl1271 *wl, u8 hlid);
+int wl12xx_cmd_config_fwlog(struct wl1271 *wl);
+int wl12xx_cmd_start_fwlog(struct wl1271 *wl);
+int wl12xx_cmd_stop_fwlog(struct wl1271 *wl);
enum wl1271_commands {
CMD_INTERROGATE = 1, /*use this to read information elements*/
CMD_START_PERIODIC_SCAN = 50,
CMD_STOP_PERIODIC_SCAN = 51,
CMD_SET_STA_STATE = 52,
+ CMD_CONFIG_FWLOGGER = 53,
+ CMD_START_FWLOGGER = 54,
+ CMD_STOP_FWLOGGER = 55,
/* AP mode commands */
CMD_BSS_START = 60,
u8 padding1;
} __packed;
+/*
+ * Continuous mode - packets are transferred to the host periodically
+ * via the data path.
+ * On demand - Log messages are stored in a cyclic buffer in the
+ * firmware, and only transferred to the host when explicitly requested
+ */
+enum wl12xx_fwlogger_log_mode {
+ WL12XX_FWLOG_CONTINUOUS,
+ WL12XX_FWLOG_ON_DEMAND
+};
+
+/* Include/exclude timestamps from the log messages */
+enum wl12xx_fwlogger_timestamp {
+ WL12XX_FWLOG_TIMESTAMP_DISABLED,
+ WL12XX_FWLOG_TIMESTAMP_ENABLED
+};
+
+/*
+ * Logs can be routed to the debug pinouts (where available), to the host bus
+ * (SDIO/SPI), or dropped
+ */
+enum wl12xx_fwlogger_output {
+ WL12XX_FWLOG_OUTPUT_NONE,
+ WL12XX_FWLOG_OUTPUT_DBG_PINS,
+ WL12XX_FWLOG_OUTPUT_HOST,
+};
+
+struct wl12xx_cmd_config_fwlog {
+ struct wl1271_cmd_header header;
+
+ /* See enum wl12xx_fwlogger_log_mode */
+ u8 logger_mode;
+
+ /* Minimum log level threshold */
+ u8 log_severity;
+
+ /* Include/exclude timestamps from the log messages */
+ u8 timestamp;
+
+ /* See enum wl1271_fwlogger_output */
+ u8 output;
+
+ /* Regulates the frequency of log messages */
+ u8 threshold;
+
+ u8 padding[3];
+} __packed;
+
+struct wl12xx_cmd_start_fwlog {
+ struct wl1271_cmd_header header;
+} __packed;
+
+struct wl12xx_cmd_stop_fwlog {
+ struct wl1271_cmd_header header;
+} __packed;
+
#endif /* __WL1271_CMD_H__ */
u8 swallow_clk_diff;
};
+struct conf_rx_streaming_settings {
+ /*
+ * RX Streaming duration (in msec) from last tx/rx
+ *
+ * Range: u32
+ */
+ u32 duration;
+
+ /*
+ * Bitmap of tids to be polled during RX streaming.
+ * (Note: it doesn't look like it really matters)
+ *
+ * Range: 0x1-0xff
+ */
+ u8 queues;
+
+ /*
+ * RX Streaming interval.
+ * (Note:this value is also used as the rx streaming timeout)
+ * Range: 0 (disabled), 10 - 100
+ */
+ u8 interval;
+
+ /*
+ * enable rx streaming also when there is no coex activity
+ */
+ u8 always;
+};
+
+struct conf_fwlog {
+ /* Continuous or on-demand */
+ u8 mode;
+
+ /*
+ * Number of memory blocks dedicated for the FW logger
+ *
+ * Range: 1-3, or 0 to disable the FW logger
+ */
+ u8 mem_blocks;
+
+ /* Minimum log level threshold */
+ u8 severity;
+
+ /* Include/exclude timestamps from the log messages */
+ u8 timestamp;
+
+ /* See enum wl1271_fwlogger_output */
+ u8 output;
+
+ /* Regulates the frequency of log messages */
+ u8 threshold;
+};
+
struct conf_drv_settings {
struct conf_sg_settings sg;
struct conf_rx_settings rx;
struct conf_memory_settings mem_wl127x;
struct conf_memory_settings mem_wl128x;
struct conf_fm_coex fm_coex;
+ struct conf_rx_streaming_settings rx_streaming;
+ struct conf_fwlog fwlog;
u8 hci_io_ds;
};
if (!entry || IS_ERR(entry)) \
goto err; \
+#define DEBUGFS_ADD_PREFIX(prefix, name, parent) \
+ do { \
+ entry = debugfs_create_file(#name, 0400, parent, \
+ wl, &prefix## _## name## _ops); \
+ if (!entry || IS_ERR(entry)) \
+ goto err; \
+ } while (0);
+
#define DEBUGFS_FWSTATS_FILE(sub, name, fmt) \
static ssize_t sub## _ ##name## _read(struct file *file, \
char __user *userbuf, \
struct wl1271 *wl = file->private_data;
mutex_lock(&wl->mutex);
- ieee80211_queue_work(wl->hw, &wl->recovery_work);
+ wl12xx_queue_recovery_work(wl);
mutex_unlock(&wl->mutex);
return count;
.llseek = default_llseek,
};
+static ssize_t rx_streaming_interval_write(struct file *file,
+ const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct wl1271 *wl = file->private_data;
+ char buf[10];
+ size_t len;
+ unsigned long value;
+ int ret;
+
+ len = min(count, sizeof(buf) - 1);
+ if (copy_from_user(buf, user_buf, len))
+ return -EFAULT;
+ buf[len] = '\0';
+
+ ret = kstrtoul(buf, 0, &value);
+ if (ret < 0) {
+ wl1271_warning("illegal value in rx_streaming_interval!");
+ return -EINVAL;
+ }
+
+ /* valid values: 0, 10-100 */
+ if (value && (value < 10 || value > 100)) {
+ wl1271_warning("value is not in range!");
+ return -ERANGE;
+ }
+
+ mutex_lock(&wl->mutex);
+
+ wl->conf.rx_streaming.interval = value;
+
+ ret = wl1271_ps_elp_wakeup(wl);
+ if (ret < 0)
+ goto out;
+
+ wl1271_recalc_rx_streaming(wl);
+
+ wl1271_ps_elp_sleep(wl);
+out:
+ mutex_unlock(&wl->mutex);
+ return count;
+}
+
+static ssize_t rx_streaming_interval_read(struct file *file,
+ char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ struct wl1271 *wl = file->private_data;
+ return wl1271_format_buffer(userbuf, count, ppos,
+ "%d\n", wl->conf.rx_streaming.interval);
+}
+
+static const struct file_operations rx_streaming_interval_ops = {
+ .read = rx_streaming_interval_read,
+ .write = rx_streaming_interval_write,
+ .open = wl1271_open_file_generic,
+ .llseek = default_llseek,
+};
+
+static ssize_t rx_streaming_always_write(struct file *file,
+ const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct wl1271 *wl = file->private_data;
+ char buf[10];
+ size_t len;
+ unsigned long value;
+ int ret;
+
+ len = min(count, sizeof(buf) - 1);
+ if (copy_from_user(buf, user_buf, len))
+ return -EFAULT;
+ buf[len] = '\0';
+
+ ret = kstrtoul(buf, 0, &value);
+ if (ret < 0) {
+ wl1271_warning("illegal value in rx_streaming_write!");
+ return -EINVAL;
+ }
+
+ /* valid values: 0, 10-100 */
+ if (!(value == 0 || value == 1)) {
+ wl1271_warning("value is not in valid!");
+ return -EINVAL;
+ }
+
+ mutex_lock(&wl->mutex);
+
+ wl->conf.rx_streaming.always = value;
+
+ ret = wl1271_ps_elp_wakeup(wl);
+ if (ret < 0)
+ goto out;
+
+ wl1271_recalc_rx_streaming(wl);
+
+ wl1271_ps_elp_sleep(wl);
+out:
+ mutex_unlock(&wl->mutex);
+ return count;
+}
+
+static ssize_t rx_streaming_always_read(struct file *file,
+ char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ struct wl1271 *wl = file->private_data;
+ return wl1271_format_buffer(userbuf, count, ppos,
+ "%d\n", wl->conf.rx_streaming.always);
+}
+
+static const struct file_operations rx_streaming_always_ops = {
+ .read = rx_streaming_always_read,
+ .write = rx_streaming_always_write,
+ .open = wl1271_open_file_generic,
+ .llseek = default_llseek,
+};
+
static int wl1271_debugfs_add_files(struct wl1271 *wl,
struct dentry *rootdir)
{
int ret = 0;
- struct dentry *entry, *stats;
+ struct dentry *entry, *stats, *streaming;
stats = debugfs_create_dir("fw-statistics", rootdir);
if (!stats || IS_ERR(stats)) {
DEBUGFS_ADD(dtim_interval, rootdir);
DEBUGFS_ADD(beacon_interval, rootdir);
+ streaming = debugfs_create_dir("rx_streaming", rootdir);
+ if (!streaming || IS_ERR(streaming))
+ goto err;
+
+ DEBUGFS_ADD_PREFIX(rx_streaming, interval, streaming);
+ DEBUGFS_ADD_PREFIX(rx_streaming, always, streaming);
+
+
return 0;
err:
if (ret < 0)
break;
- /* enable beacon early termination */
- ret = wl1271_acx_bet_enable(wl, true);
- if (ret < 0)
- break;
+ /*
+ * BET has only a minor effect in 5GHz and masks
+ * channel switch IEs, so we only enable BET on 2.4GHz
+ */
+ if (wl->band == IEEE80211_BAND_2GHZ)
+ /* enable beacon early termination */
+ ret = wl1271_acx_bet_enable(wl, true);
if (wl->ps_compl) {
complete(wl->ps_compl);
ieee80211_stop_rx_ba_session(wl->vif, wl->ba_rx_bitmap, wl->bssid);
}
+static void wl12xx_event_soft_gemini_sense(struct wl1271 *wl,
+ u8 enable)
+{
+ if (enable) {
+ /* disable dynamic PS when requested by the firmware */
+ ieee80211_disable_dyn_ps(wl->vif);
+ set_bit(WL1271_FLAG_SOFT_GEMINI, &wl->flags);
+ } else {
+ ieee80211_enable_dyn_ps(wl->vif);
+ clear_bit(WL1271_FLAG_SOFT_GEMINI, &wl->flags);
+ wl1271_recalc_rx_streaming(wl);
+ }
+
+}
+
static void wl1271_event_mbox_dump(struct event_mailbox *mbox)
{
wl1271_debug(DEBUG_EVENT, "MBOX DUMP:");
}
}
- /* disable dynamic PS when requested by the firmware */
if (vector & SOFT_GEMINI_SENSE_EVENT_ID &&
- wl->bss_type == BSS_TYPE_STA_BSS) {
- if (mbox->soft_gemini_sense_info)
- ieee80211_disable_dyn_ps(wl->vif);
- else
- ieee80211_enable_dyn_ps(wl->vif);
- }
+ wl->bss_type == BSS_TYPE_STA_BSS)
+ wl12xx_event_soft_gemini_sense(wl,
+ mbox->soft_gemini_sense_info);
/*
* The BSS_LOSE_EVENT_ID is only needed while psm (and hence beacon
#ifndef __INI_H__
#define __INI_H__
+#define GENERAL_SETTINGS_DRPW_LPD 0xc0
+#define SCRATCH_ENABLE_LPD BIT(25)
+
#define WL1271_INI_MAX_SMART_REFLEX_PARAM 16
struct wl1271_ini_general_params {
return 0;
}
+static int wl12xx_init_fwlog(struct wl1271 *wl)
+{
+ int ret;
+
+ if (wl->quirks & WL12XX_QUIRK_FWLOG_NOT_IMPLEMENTED)
+ return 0;
+
+ ret = wl12xx_cmd_config_fwlog(wl);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
static int wl1271_sta_hw_init(struct wl1271 *wl)
{
int ret;
if (ret < 0)
return ret;
+ /* Configure the FW logger */
+ ret = wl12xx_init_fwlog(wl);
+ if (ret < 0)
+ return ret;
+
return 0;
}
#include <linux/module.h>
#include <linux/platform_device.h>
-#include <linux/crc7.h>
#include <linux/spi/spi.h>
#include "wl12xx.h"
void wl1271_io_reset(struct wl1271 *wl)
{
- wl->if_ops->reset(wl);
+ if (wl->if_ops->reset)
+ wl->if_ops->reset(wl);
}
void wl1271_io_init(struct wl1271 *wl)
{
- wl->if_ops->init(wl);
+ if (wl->if_ops->init)
+ wl->if_ops->init(wl);
}
void wl1271_top_reg_write(struct wl1271 *wl, int addr, u16 val)
wl1271_raw_write(wl, physical, buf, len, fixed);
}
+static inline void wl1271_read_hwaddr(struct wl1271 *wl, int hwaddr,
+ void *buf, size_t len, bool fixed)
+{
+ int physical;
+ int addr;
+
+ /* Addresses are stored internally as addresses to 32 bytes blocks */
+ addr = hwaddr << 5;
+
+ physical = wl1271_translate_addr(wl, addr);
+
+ wl1271_raw_read(wl, physical, buf, len, fixed);
+}
+
static inline u32 wl1271_read32(struct wl1271 *wl, int addr)
{
return wl1271_raw_read32(wl, wl1271_translate_addr(wl, addr));
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/wl12xx.h>
+#include <linux/sched.h>
#include "wl12xx.h"
#include "wl12xx_80211.h"
.fm_disturbed_band_margin = 0xff, /* default */
.swallow_clk_diff = 0xff, /* default */
},
+ .rx_streaming = {
+ .duration = 150,
+ .queues = 0x1,
+ .interval = 20,
+ .always = 0,
+ },
+ .fwlog = {
+ .mode = WL12XX_FWLOG_ON_DEMAND,
+ .mem_blocks = 2,
+ .severity = 0,
+ .timestamp = WL12XX_FWLOG_TIMESTAMP_DISABLED,
+ .output = WL12XX_FWLOG_OUTPUT_HOST,
+ .threshold = 0,
+ },
.hci_io_ds = HCI_IO_DS_6MA,
};
+static char *fwlog_param;
+
static void __wl1271_op_remove_interface(struct wl1271 *wl,
bool reset_tx_queues);
static void wl1271_free_ap_keys(struct wl1271 *wl);
static DEFINE_MUTEX(wl_list_mutex);
static LIST_HEAD(wl_list);
+static int wl1271_check_operstate(struct wl1271 *wl, unsigned char operstate)
+{
+ int ret;
+ if (operstate != IF_OPER_UP)
+ return 0;
+
+ if (test_and_set_bit(WL1271_FLAG_STA_STATE_SENT, &wl->flags))
+ return 0;
+
+ ret = wl1271_cmd_set_sta_state(wl);
+ if (ret < 0)
+ return ret;
+
+ wl1271_info("Association completed.");
+ return 0;
+}
static int wl1271_dev_notify(struct notifier_block *me, unsigned long what,
void *arg)
{
if (ret < 0)
goto out;
- if ((dev->operstate == IF_OPER_UP) &&
- !test_and_set_bit(WL1271_FLAG_STA_STATE_SENT, &wl->flags)) {
- wl1271_cmd_set_sta_state(wl);
- wl1271_info("Association completed.");
- }
+ wl1271_check_operstate(wl, dev->operstate);
wl1271_ps_elp_sleep(wl);
return 0;
}
+static int wl1271_set_rx_streaming(struct wl1271 *wl, bool enable)
+{
+ int ret = 0;
+
+ /* we should hold wl->mutex */
+ ret = wl1271_acx_ps_rx_streaming(wl, enable);
+ if (ret < 0)
+ goto out;
+
+ if (enable)
+ set_bit(WL1271_FLAG_RX_STREAMING_STARTED, &wl->flags);
+ else
+ clear_bit(WL1271_FLAG_RX_STREAMING_STARTED, &wl->flags);
+out:
+ return ret;
+}
+
+/*
+ * this function is being called when the rx_streaming interval
+ * has beed changed or rx_streaming should be disabled
+ */
+int wl1271_recalc_rx_streaming(struct wl1271 *wl)
+{
+ int ret = 0;
+ int period = wl->conf.rx_streaming.interval;
+
+ /* don't reconfigure if rx_streaming is disabled */
+ if (!test_bit(WL1271_FLAG_RX_STREAMING_STARTED, &wl->flags))
+ goto out;
+
+ /* reconfigure/disable according to new streaming_period */
+ if (period &&
+ test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags) &&
+ (wl->conf.rx_streaming.always ||
+ test_bit(WL1271_FLAG_SOFT_GEMINI, &wl->flags)))
+ ret = wl1271_set_rx_streaming(wl, true);
+ else {
+ ret = wl1271_set_rx_streaming(wl, false);
+ /* don't cancel_work_sync since we might deadlock */
+ del_timer_sync(&wl->rx_streaming_timer);
+ }
+out:
+ return ret;
+}
+
+static void wl1271_rx_streaming_enable_work(struct work_struct *work)
+{
+ int ret;
+ struct wl1271 *wl =
+ container_of(work, struct wl1271, rx_streaming_enable_work);
+
+ mutex_lock(&wl->mutex);
+
+ if (test_bit(WL1271_FLAG_RX_STREAMING_STARTED, &wl->flags) ||
+ !test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags) ||
+ (!wl->conf.rx_streaming.always &&
+ !test_bit(WL1271_FLAG_SOFT_GEMINI, &wl->flags)))
+ goto out;
+
+ if (!wl->conf.rx_streaming.interval)
+ goto out;
+
+ ret = wl1271_ps_elp_wakeup(wl);
+ if (ret < 0)
+ goto out;
+
+ ret = wl1271_set_rx_streaming(wl, true);
+ if (ret < 0)
+ goto out_sleep;
+
+ /* stop it after some time of inactivity */
+ mod_timer(&wl->rx_streaming_timer,
+ jiffies + msecs_to_jiffies(wl->conf.rx_streaming.duration));
+
+out_sleep:
+ wl1271_ps_elp_sleep(wl);
+out:
+ mutex_unlock(&wl->mutex);
+}
+
+static void wl1271_rx_streaming_disable_work(struct work_struct *work)
+{
+ int ret;
+ struct wl1271 *wl =
+ container_of(work, struct wl1271, rx_streaming_disable_work);
+
+ mutex_lock(&wl->mutex);
+
+ if (!test_bit(WL1271_FLAG_RX_STREAMING_STARTED, &wl->flags))
+ goto out;
+
+ ret = wl1271_ps_elp_wakeup(wl);
+ if (ret < 0)
+ goto out;
+
+ ret = wl1271_set_rx_streaming(wl, false);
+ if (ret)
+ goto out_sleep;
+
+out_sleep:
+ wl1271_ps_elp_sleep(wl);
+out:
+ mutex_unlock(&wl->mutex);
+}
+
+static void wl1271_rx_streaming_timer(unsigned long data)
+{
+ struct wl1271 *wl = (struct wl1271 *)data;
+ ieee80211_queue_work(wl->hw, &wl->rx_streaming_disable_work);
+}
+
static void wl1271_conf_init(struct wl1271 *wl)
{
/* apply driver default configuration */
memcpy(&wl->conf, &default_conf, sizeof(default_conf));
-}
+ /* Adjust settings according to optional module parameters */
+ if (fwlog_param) {
+ if (!strcmp(fwlog_param, "continuous")) {
+ wl->conf.fwlog.mode = WL12XX_FWLOG_CONTINUOUS;
+ } else if (!strcmp(fwlog_param, "ondemand")) {
+ wl->conf.fwlog.mode = WL12XX_FWLOG_ON_DEMAND;
+ } else if (!strcmp(fwlog_param, "dbgpins")) {
+ wl->conf.fwlog.mode = WL12XX_FWLOG_CONTINUOUS;
+ wl->conf.fwlog.output = WL12XX_FWLOG_OUTPUT_DBG_PINS;
+ } else if (!strcmp(fwlog_param, "disable")) {
+ wl->conf.fwlog.mem_blocks = 0;
+ wl->conf.fwlog.output = WL12XX_FWLOG_OUTPUT_NONE;
+ } else {
+ wl1271_error("Unknown fwlog parameter %s", fwlog_param);
+ }
+ }
+}
static int wl1271_plt_init(struct wl1271 *wl)
{
/* Return sent skbs to the network stack */
while ((skb = skb_dequeue(&wl->deferred_tx_queue)))
- ieee80211_tx_status(wl->hw, skb);
+ ieee80211_tx_status_ni(wl->hw, skb);
}
static void wl1271_netstack_work(struct work_struct *work)
if (unlikely(intr & WL1271_ACX_INTR_WATCHDOG)) {
wl1271_error("watchdog interrupt received! "
"starting recovery.");
- ieee80211_queue_work(wl->hw, &wl->recovery_work);
+ wl12xx_queue_recovery_work(wl);
/* restarting the chip. ignore any other interrupt. */
goto out;
return ret;
}
+void wl12xx_queue_recovery_work(struct wl1271 *wl)
+{
+ if (!test_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags))
+ ieee80211_queue_work(wl->hw, &wl->recovery_work);
+}
+
+size_t wl12xx_copy_fwlog(struct wl1271 *wl, u8 *memblock, size_t maxlen)
+{
+ size_t len = 0;
+
+ /* The FW log is a length-value list, find where the log end */
+ while (len < maxlen) {
+ if (memblock[len] == 0)
+ break;
+ if (len + memblock[len] + 1 > maxlen)
+ break;
+ len += memblock[len] + 1;
+ }
+
+ /* Make sure we have enough room */
+ len = min(len, (size_t)(PAGE_SIZE - wl->fwlog_size));
+
+ /* Fill the FW log file, consumed by the sysfs fwlog entry */
+ memcpy(wl->fwlog + wl->fwlog_size, memblock, len);
+ wl->fwlog_size += len;
+
+ return len;
+}
+
+static void wl12xx_read_fwlog_panic(struct wl1271 *wl)
+{
+ u32 addr;
+ u32 first_addr;
+ u8 *block;
+
+ if ((wl->quirks & WL12XX_QUIRK_FWLOG_NOT_IMPLEMENTED) ||
+ (wl->conf.fwlog.mode != WL12XX_FWLOG_ON_DEMAND) ||
+ (wl->conf.fwlog.mem_blocks == 0))
+ return;
+
+ wl1271_info("Reading FW panic log");
+
+ block = kmalloc(WL12XX_HW_BLOCK_SIZE, GFP_KERNEL);
+ if (!block)
+ return;
+
+ /*
+ * Make sure the chip is awake and the logger isn't active.
+ * This might fail if the firmware hanged.
+ */
+ if (!wl1271_ps_elp_wakeup(wl))
+ wl12xx_cmd_stop_fwlog(wl);
+
+ /* Read the first memory block address */
+ wl1271_fw_status(wl, wl->fw_status);
+ first_addr = __le32_to_cpu(wl->fw_status->sta.log_start_addr);
+ if (!first_addr)
+ goto out;
+
+ /* Traverse the memory blocks linked list */
+ addr = first_addr;
+ do {
+ memset(block, 0, WL12XX_HW_BLOCK_SIZE);
+ wl1271_read_hwaddr(wl, addr, block, WL12XX_HW_BLOCK_SIZE,
+ false);
+
+ /*
+ * Memory blocks are linked to one another. The first 4 bytes
+ * of each memory block hold the hardware address of the next
+ * one. The last memory block points to the first one.
+ */
+ addr = __le32_to_cpup((__le32 *)block);
+ if (!wl12xx_copy_fwlog(wl, block + sizeof(addr),
+ WL12XX_HW_BLOCK_SIZE - sizeof(addr)))
+ break;
+ } while (addr && (addr != first_addr));
+
+ wake_up_interruptible(&wl->fwlog_waitq);
+
+out:
+ kfree(block);
+}
+
static void wl1271_recovery_work(struct work_struct *work)
{
struct wl1271 *wl =
if (wl->state != WL1271_STATE_ON)
goto out;
+ /* Avoid a recursive recovery */
+ set_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags);
+
+ wl12xx_read_fwlog_panic(wl);
+
wl1271_info("Hardware recovery in progress. FW ver: %s pc: 0x%x",
wl->chip.fw_ver_str, wl1271_read32(wl, SCR_PAD4));
/* reboot the chipset */
__wl1271_op_remove_interface(wl, false);
+
+ clear_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags);
+
ieee80211_restart_hw(wl->hw);
/*
wl1271_debug(DEBUG_BOOT, "chip id 0x%x (1271 PG20)",
wl->chip.id);
- /* end-of-transaction flag should be set in wl127x AP mode */
+ /*
+ * 'end-of-transaction flag' and 'LPD mode flag'
+ * should be set in wl127x AP mode only
+ */
if (wl->bss_type == BSS_TYPE_AP_BSS)
- wl->quirks |= WL12XX_QUIRK_END_OF_TRANSACTION;
+ wl->quirks |= (WL12XX_QUIRK_END_OF_TRANSACTION |
+ WL12XX_QUIRK_LPD_MODE);
ret = wl1271_setup(wl);
if (ret < 0)
ret = wl1271_setup(wl);
if (ret < 0)
goto out;
+
if (wl1271_set_block_size(wl))
wl->quirks |= WL12XX_QUIRK_BLOCKSIZE_ALIGNMENT;
break;
return ret;
}
-static unsigned int wl1271_get_fw_ver_quirks(struct wl1271 *wl)
-{
- unsigned int quirks = 0;
- unsigned int *fw_ver = wl->chip.fw_ver;
-
- /* Only for wl127x */
- if ((fw_ver[FW_VER_CHIP] == FW_VER_CHIP_WL127X) &&
- /* Check STA version */
- (((fw_ver[FW_VER_IF_TYPE] == FW_VER_IF_TYPE_STA) &&
- (fw_ver[FW_VER_MINOR] < FW_VER_MINOR_1_SPARE_STA_MIN)) ||
- /* Check AP version */
- ((fw_ver[FW_VER_IF_TYPE] == FW_VER_IF_TYPE_AP) &&
- (fw_ver[FW_VER_MINOR] < FW_VER_MINOR_1_SPARE_AP_MIN))))
- quirks |= WL12XX_QUIRK_USE_2_SPARE_BLOCKS;
-
- return quirks;
-}
-
int wl1271_plt_start(struct wl1271 *wl)
{
int retries = WL1271_BOOT_RETRIES;
wl1271_notice("firmware booted in PLT mode (%s)",
wl->chip.fw_ver_str);
- /* Check if any quirks are needed with older fw versions */
- wl->quirks |= wl1271_get_fw_ver_quirks(wl);
goto out;
irq_disable:
};
#ifdef CONFIG_PM
-static int wl1271_configure_suspend(struct wl1271 *wl)
+static int wl1271_configure_suspend_sta(struct wl1271 *wl)
{
int ret;
- if (wl->bss_type != BSS_TYPE_STA_BSS)
- return 0;
-
mutex_lock(&wl->mutex);
ret = wl1271_ps_elp_wakeup(wl);
}
+static int wl1271_configure_suspend_ap(struct wl1271 *wl)
+{
+ int ret;
+
+ mutex_lock(&wl->mutex);
+
+ ret = wl1271_ps_elp_wakeup(wl);
+ if (ret < 0)
+ goto out_unlock;
+
+ ret = wl1271_acx_set_ap_beacon_filter(wl, true);
+
+ wl1271_ps_elp_sleep(wl);
+out_unlock:
+ mutex_unlock(&wl->mutex);
+ return ret;
+
+}
+
+static int wl1271_configure_suspend(struct wl1271 *wl)
+{
+ if (wl->bss_type == BSS_TYPE_STA_BSS)
+ return wl1271_configure_suspend_sta(wl);
+ if (wl->bss_type == BSS_TYPE_AP_BSS)
+ return wl1271_configure_suspend_ap(wl);
+ return 0;
+}
+
static void wl1271_configure_resume(struct wl1271 *wl)
{
int ret;
+ bool is_sta = wl->bss_type == BSS_TYPE_STA_BSS;
+ bool is_ap = wl->bss_type == BSS_TYPE_AP_BSS;
- if (wl->bss_type != BSS_TYPE_STA_BSS)
+ if (!is_sta && !is_ap)
return;
mutex_lock(&wl->mutex);
if (ret < 0)
goto out;
- /* exit psm if it wasn't configured */
- if (!test_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags))
- wl1271_ps_set_mode(wl, STATION_ACTIVE_MODE,
- wl->basic_rate, true);
+ if (is_sta) {
+ /* exit psm if it wasn't configured */
+ if (!test_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags))
+ wl1271_ps_set_mode(wl, STATION_ACTIVE_MODE,
+ wl->basic_rate, true);
+ } else if (is_ap) {
+ wl1271_acx_set_ap_beacon_filter(wl, false);
+ }
wl1271_ps_elp_sleep(wl);
out:
struct cfg80211_wowlan *wow)
{
struct wl1271 *wl = hw->priv;
+ int ret;
+
wl1271_debug(DEBUG_MAC80211, "mac80211 suspend wow=%d", !!wow);
- wl->wow_enabled = !!wow;
- if (wl->wow_enabled) {
- int ret;
- ret = wl1271_configure_suspend(wl);
- if (ret < 0) {
- wl1271_warning("couldn't prepare device to suspend");
- return ret;
- }
- /* flush any remaining work */
- wl1271_debug(DEBUG_MAC80211, "flushing remaining works");
- flush_delayed_work(&wl->scan_complete_work);
+ WARN_ON(!wow || !wow->any);
- /*
- * disable and re-enable interrupts in order to flush
- * the threaded_irq
- */
- wl1271_disable_interrupts(wl);
+ wl->wow_enabled = true;
+ ret = wl1271_configure_suspend(wl);
+ if (ret < 0) {
+ wl1271_warning("couldn't prepare device to suspend");
+ return ret;
+ }
+ /* flush any remaining work */
+ wl1271_debug(DEBUG_MAC80211, "flushing remaining works");
+ flush_delayed_work(&wl->scan_complete_work);
- /*
- * set suspended flag to avoid triggering a new threaded_irq
- * work. no need for spinlock as interrupts are disabled.
- */
- set_bit(WL1271_FLAG_SUSPENDED, &wl->flags);
+ /*
+ * disable and re-enable interrupts in order to flush
+ * the threaded_irq
+ */
+ wl1271_disable_interrupts(wl);
+
+ /*
+ * set suspended flag to avoid triggering a new threaded_irq
+ * work. no need for spinlock as interrupts are disabled.
+ */
+ set_bit(WL1271_FLAG_SUSPENDED, &wl->flags);
+
+ wl1271_enable_interrupts(wl);
+ flush_work(&wl->tx_work);
+ flush_delayed_work(&wl->pspoll_work);
+ flush_delayed_work(&wl->elp_work);
- wl1271_enable_interrupts(wl);
- flush_work(&wl->tx_work);
- flush_delayed_work(&wl->pspoll_work);
- flush_delayed_work(&wl->elp_work);
- }
return 0;
}
static int wl1271_op_resume(struct ieee80211_hw *hw)
{
struct wl1271 *wl = hw->priv;
+ unsigned long flags;
+ bool run_irq_work = false;
+
wl1271_debug(DEBUG_MAC80211, "mac80211 resume wow=%d",
wl->wow_enabled);
+ WARN_ON(!wl->wow_enabled);
/*
* re-enable irq_work enqueuing, and call irq_work directly if
* there is a pending work.
*/
- if (wl->wow_enabled) {
- struct wl1271 *wl = hw->priv;
- unsigned long flags;
- bool run_irq_work = false;
-
- spin_lock_irqsave(&wl->wl_lock, flags);
- clear_bit(WL1271_FLAG_SUSPENDED, &wl->flags);
- if (test_and_clear_bit(WL1271_FLAG_PENDING_WORK, &wl->flags))
- run_irq_work = true;
- spin_unlock_irqrestore(&wl->wl_lock, flags);
-
- if (run_irq_work) {
- wl1271_debug(DEBUG_MAC80211,
- "run postponed irq_work directly");
- wl1271_irq(0, wl);
- wl1271_enable_interrupts(wl);
- }
+ spin_lock_irqsave(&wl->wl_lock, flags);
+ clear_bit(WL1271_FLAG_SUSPENDED, &wl->flags);
+ if (test_and_clear_bit(WL1271_FLAG_PENDING_WORK, &wl->flags))
+ run_irq_work = true;
+ spin_unlock_irqrestore(&wl->wl_lock, flags);
- wl1271_configure_resume(wl);
+ if (run_irq_work) {
+ wl1271_debug(DEBUG_MAC80211,
+ "run postponed irq_work directly");
+ wl1271_irq(0, wl);
+ wl1271_enable_interrupts(wl);
}
+ wl1271_configure_resume(wl);
+ wl->wow_enabled = false;
return 0;
}
strncpy(wiphy->fw_version, wl->chip.fw_ver_str,
sizeof(wiphy->fw_version));
- /* Check if any quirks are needed with older fw versions */
- wl->quirks |= wl1271_get_fw_ver_quirks(wl);
-
/*
* Now we know if 11a is supported (info from the NVS), so disable
* 11a channels if not supported
cancel_delayed_work_sync(&wl->scan_complete_work);
cancel_work_sync(&wl->netstack_work);
cancel_work_sync(&wl->tx_work);
+ del_timer_sync(&wl->rx_streaming_timer);
+ cancel_work_sync(&wl->rx_streaming_enable_work);
+ cancel_work_sync(&wl->rx_streaming_disable_work);
cancel_delayed_work_sync(&wl->pspoll_work);
cancel_delayed_work_sync(&wl->elp_work);
}
}
- if (changed & BSS_CHANGED_IBSS) {
- wl1271_debug(DEBUG_ADHOC, "ibss_joined: %d",
- bss_conf->ibss_joined);
-
- if (bss_conf->ibss_joined) {
- u32 rates = bss_conf->basic_rates;
- wl->basic_rate_set = wl1271_tx_enabled_rates_get(wl,
- rates);
- wl->basic_rate = wl1271_tx_min_rate_get(wl);
-
- /* by default, use 11b rates */
- wl->rate_set = CONF_TX_IBSS_DEFAULT_RATES;
- ret = wl1271_acx_sta_rate_policies(wl);
- if (ret < 0)
- goto out;
- }
- }
-
ret = wl1271_bss_erp_info_changed(wl, bss_conf, changed);
if (ret < 0)
goto out;
}
}
+ if (changed & BSS_CHANGED_IBSS) {
+ wl1271_debug(DEBUG_ADHOC, "ibss_joined: %d",
+ bss_conf->ibss_joined);
+
+ if (bss_conf->ibss_joined) {
+ u32 rates = bss_conf->basic_rates;
+ wl->basic_rate_set = wl1271_tx_enabled_rates_get(wl,
+ rates);
+ wl->basic_rate = wl1271_tx_min_rate_get(wl);
+
+ /* by default, use 11b rates */
+ wl->rate_set = CONF_TX_IBSS_DEFAULT_RATES;
+ ret = wl1271_acx_sta_rate_policies(wl);
+ if (ret < 0)
+ goto out;
+ }
+ }
+
ret = wl1271_bss_erp_info_changed(wl, bss_conf, changed);
if (ret < 0)
goto out;
wl1271_warning("cmd join failed %d", ret);
goto out;
}
+ wl1271_check_operstate(wl, ieee80211_get_operstate(vif));
}
out:
static DEVICE_ATTR(hw_pg_ver, S_IRUGO | S_IWUSR,
wl1271_sysfs_show_hw_pg_ver, NULL);
+static ssize_t wl1271_sysfs_read_fwlog(struct file *filp, struct kobject *kobj,
+ struct bin_attribute *bin_attr,
+ char *buffer, loff_t pos, size_t count)
+{
+ struct device *dev = container_of(kobj, struct device, kobj);
+ struct wl1271 *wl = dev_get_drvdata(dev);
+ ssize_t len;
+ int ret;
+
+ ret = mutex_lock_interruptible(&wl->mutex);
+ if (ret < 0)
+ return -ERESTARTSYS;
+
+ /* Let only one thread read the log at a time, blocking others */
+ while (wl->fwlog_size == 0) {
+ DEFINE_WAIT(wait);
+
+ prepare_to_wait_exclusive(&wl->fwlog_waitq,
+ &wait,
+ TASK_INTERRUPTIBLE);
+
+ if (wl->fwlog_size != 0) {
+ finish_wait(&wl->fwlog_waitq, &wait);
+ break;
+ }
+
+ mutex_unlock(&wl->mutex);
+
+ schedule();
+ finish_wait(&wl->fwlog_waitq, &wait);
+
+ if (signal_pending(current))
+ return -ERESTARTSYS;
+
+ ret = mutex_lock_interruptible(&wl->mutex);
+ if (ret < 0)
+ return -ERESTARTSYS;
+ }
+
+ /* Check if the fwlog is still valid */
+ if (wl->fwlog_size < 0) {
+ mutex_unlock(&wl->mutex);
+ return 0;
+ }
+
+ /* Seeking is not supported - old logs are not kept. Disregard pos. */
+ len = min(count, (size_t)wl->fwlog_size);
+ wl->fwlog_size -= len;
+ memcpy(buffer, wl->fwlog, len);
+
+ /* Make room for new messages */
+ memmove(wl->fwlog, wl->fwlog + len, wl->fwlog_size);
+
+ mutex_unlock(&wl->mutex);
+
+ return len;
+}
+
+static struct bin_attribute fwlog_attr = {
+ .attr = {.name = "fwlog", .mode = S_IRUSR},
+ .read = wl1271_sysfs_read_fwlog,
+};
+
int wl1271_register_hw(struct wl1271 *wl)
{
int ret;
INIT_WORK(&wl->tx_work, wl1271_tx_work);
INIT_WORK(&wl->recovery_work, wl1271_recovery_work);
INIT_DELAYED_WORK(&wl->scan_complete_work, wl1271_scan_complete_work);
+ INIT_WORK(&wl->rx_streaming_enable_work,
+ wl1271_rx_streaming_enable_work);
+ INIT_WORK(&wl->rx_streaming_disable_work,
+ wl1271_rx_streaming_disable_work);
+
+ wl->freezable_wq = create_freezable_workqueue("wl12xx_wq");
+ if (!wl->freezable_wq) {
+ ret = -ENOMEM;
+ goto err_hw;
+ }
+
wl->channel = WL1271_DEFAULT_CHANNEL;
wl->beacon_int = WL1271_DEFAULT_BEACON_INT;
wl->default_key = 0;
wl->quirks = 0;
wl->platform_quirks = 0;
wl->sched_scanning = false;
+ setup_timer(&wl->rx_streaming_timer, wl1271_rx_streaming_timer,
+ (unsigned long) wl);
+ wl->fwlog_size = 0;
+ init_waitqueue_head(&wl->fwlog_waitq);
memset(wl->tx_frames_map, 0, sizeof(wl->tx_frames_map));
for (i = 0; i < ACX_TX_DESCRIPTORS; i++)
wl->aggr_buf = (u8 *)__get_free_pages(GFP_KERNEL, order);
if (!wl->aggr_buf) {
ret = -ENOMEM;
- goto err_hw;
+ goto err_wq;
}
wl->dummy_packet = wl12xx_alloc_dummy_packet(wl);
goto err_aggr;
}
+ /* Allocate one page for the FW log */
+ wl->fwlog = (u8 *)get_zeroed_page(GFP_KERNEL);
+ if (!wl->fwlog) {
+ ret = -ENOMEM;
+ goto err_dummy_packet;
+ }
+
/* Register platform device */
ret = platform_device_register(wl->plat_dev);
if (ret) {
wl1271_error("couldn't register platform device");
- goto err_dummy_packet;
+ goto err_fwlog;
}
dev_set_drvdata(&wl->plat_dev->dev, wl);
goto err_bt_coex_state;
}
+ /* Create sysfs file for the FW log */
+ ret = device_create_bin_file(&wl->plat_dev->dev, &fwlog_attr);
+ if (ret < 0) {
+ wl1271_error("failed to create sysfs file fwlog");
+ goto err_hw_pg_ver;
+ }
+
return hw;
+err_hw_pg_ver:
+ device_remove_file(&wl->plat_dev->dev, &dev_attr_hw_pg_ver);
+
err_bt_coex_state:
device_remove_file(&wl->plat_dev->dev, &dev_attr_bt_coex_state);
err_platform:
platform_device_unregister(wl->plat_dev);
+err_fwlog:
+ free_page((unsigned long)wl->fwlog);
+
err_dummy_packet:
dev_kfree_skb(wl->dummy_packet);
err_aggr:
free_pages((unsigned long)wl->aggr_buf, order);
+err_wq:
+ destroy_workqueue(wl->freezable_wq);
+
err_hw:
wl1271_debugfs_exit(wl);
kfree(plat_dev);
int wl1271_free_hw(struct wl1271 *wl)
{
+ /* Unblock any fwlog readers */
+ mutex_lock(&wl->mutex);
+ wl->fwlog_size = -1;
+ wake_up_interruptible_all(&wl->fwlog_waitq);
+ mutex_unlock(&wl->mutex);
+
+ device_remove_bin_file(&wl->plat_dev->dev, &fwlog_attr);
platform_device_unregister(wl->plat_dev);
+ free_page((unsigned long)wl->fwlog);
dev_kfree_skb(wl->dummy_packet);
free_pages((unsigned long)wl->aggr_buf,
get_order(WL1271_AGGR_BUFFER_SIZE));
kfree(wl->fw_status);
kfree(wl->tx_res_if);
+ destroy_workqueue(wl->freezable_wq);
ieee80211_free_hw(wl->hw);
module_param_named(debug_level, wl12xx_debug_level, uint, S_IRUSR | S_IWUSR);
MODULE_PARM_DESC(debug_level, "wl12xx debugging level");
+module_param_named(fwlog, fwlog_param, charp, 0);
+MODULE_PARM_DESC(keymap,
+ "FW logger options: continuous, ondemand, dbgpins or disable");
+
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Luciano Coelho <coelho@ti.com>");
MODULE_AUTHOR("Juuso Oikarinen <juuso.oikarinen@nokia.com>");
&compl, msecs_to_jiffies(WL1271_WAKEUP_TIMEOUT));
if (ret == 0) {
wl1271_error("ELP wakeup timeout!");
- ieee80211_queue_work(wl->hw, &wl->recovery_work);
+ wl12xx_queue_recovery_work(wl);
ret = -ETIMEDOUT;
goto err;
} else if (ret < 0) {
wl1271_debug(DEBUG_PSM, "leaving psm");
/* disable beacon early termination */
- ret = wl1271_acx_bet_enable(wl, false);
- if (ret < 0)
- return ret;
+ if (wl->band == IEEE80211_BAND_2GHZ) {
+ ret = wl1271_acx_bet_enable(wl, false);
+ if (ret < 0)
+ return ret;
+ }
/* disable beacon filtering */
ret = wl1271_acx_beacon_filter_opt(wl, false);
info = IEEE80211_SKB_CB(skb);
info->flags |= IEEE80211_TX_STAT_TX_FILTERED;
info->status.rates[0].idx = -1;
- ieee80211_tx_status(wl->hw, skb);
+ ieee80211_tx_status_ni(wl->hw, skb);
filtered++;
}
}
*/
#include <linux/gfp.h>
+#include <linux/sched.h>
#include "wl12xx.h"
#include "acx.h"
struct ieee80211_hdr *hdr;
u8 *buf;
u8 beacon = 0;
+ u8 is_data = 0;
/*
* In PLT mode we seem to get frames and mac80211 warns about them,
/* the data read starts with the descriptor */
desc = (struct wl1271_rx_descriptor *) data;
+ if (desc->packet_class == WL12XX_RX_CLASS_LOGGER) {
+ size_t len = length - sizeof(*desc);
+ wl12xx_copy_fwlog(wl, data + sizeof(*desc), len);
+ wake_up_interruptible(&wl->fwlog_waitq);
+ return 0;
+ }
+
switch (desc->status & WL1271_RX_DESC_STATUS_MASK) {
/* discard corrupted packets */
case WL1271_RX_DESC_DRIVER_RX_Q_FAIL:
hdr = (struct ieee80211_hdr *)skb->data;
if (ieee80211_is_beacon(hdr->frame_control))
beacon = 1;
+ if (ieee80211_is_data_present(hdr->frame_control))
+ is_data = 1;
wl1271_rx_status(wl, desc, IEEE80211_SKB_RXCB(skb), beacon);
skb_trim(skb, skb->len - desc->pad_len);
skb_queue_tail(&wl->deferred_rx_queue, skb);
- ieee80211_queue_work(wl->hw, &wl->netstack_work);
+ queue_work(wl->freezable_wq, &wl->netstack_work);
- return 0;
+ return is_data;
}
void wl1271_rx(struct wl1271 *wl, struct wl1271_fw_common_status *status)
u32 mem_block;
u32 pkt_length;
u32 pkt_offset;
+ bool is_ap = (wl->bss_type == BSS_TYPE_AP_BSS);
+ bool had_data = false;
while (drv_rx_counter != fw_rx_counter) {
buf_size = 0;
* conditions, in that case the received frame will just
* be dropped.
*/
- wl1271_rx_handle_data(wl,
- wl->aggr_buf + pkt_offset,
- pkt_length);
+ if (wl1271_rx_handle_data(wl,
+ wl->aggr_buf + pkt_offset,
+ pkt_length) == 1)
+ had_data = true;
+
wl->rx_counter++;
drv_rx_counter++;
drv_rx_counter &= NUM_RX_PKT_DESC_MOD_MASK;
*/
if (wl->quirks & WL12XX_QUIRK_END_OF_TRANSACTION)
wl1271_write32(wl, RX_DRIVER_COUNTER_ADDRESS, wl->rx_counter);
+
+ if (!is_ap && wl->conf.rx_streaming.interval && had_data &&
+ (wl->conf.rx_streaming.always ||
+ test_bit(WL1271_FLAG_SOFT_GEMINI, &wl->flags))) {
+ u32 timeout = wl->conf.rx_streaming.duration;
+
+ /* restart rx streaming */
+ if (!test_bit(WL1271_FLAG_RX_STREAMING_STARTED, &wl->flags))
+ ieee80211_queue_work(wl->hw,
+ &wl->rx_streaming_enable_work);
+
+ mod_timer(&wl->rx_streaming_timer,
+ jiffies + msecs_to_jiffies(timeout));
+ }
}
void wl1271_set_default_filters(struct wl1271 *wl)
#define RX_BUF_SIZE_MASK 0xFFF00
#define RX_BUF_SIZE_SHIFT_DIV 6
+enum {
+ WL12XX_RX_CLASS_UNKNOWN,
+ WL12XX_RX_CLASS_MANAGEMENT,
+ WL12XX_RX_CLASS_DATA,
+ WL12XX_RX_CLASS_QOS_DATA,
+ WL12XX_RX_CLASS_BCN_PRBRSP,
+ WL12XX_RX_CLASS_EAPOL,
+ WL12XX_RX_CLASS_BA_EVENT,
+ WL12XX_RX_CLASS_AMSDU,
+ WL12XX_RX_CLASS_LOGGER,
+};
+
struct wl1271_rx_descriptor {
__le16 length;
u8 status;
if (wl->scan.failed) {
wl1271_info("Scan completed due to error.");
- ieee80211_queue_work(wl->hw, &wl->recovery_work);
+ wl12xx_queue_recovery_work(wl);
}
out:
struct cfg80211_sched_scan_request *req,
struct conn_scan_ch_params *channels,
u32 band, bool radar, bool passive,
- int start)
+ int start, int max_channels)
{
struct conf_sched_scan_settings *c = &wl->conf.sched_scan;
int i, j;
bool force_passive = !req->n_ssids;
for (i = 0, j = start;
- i < req->n_channels && j < MAX_CHANNELS_ALL_BANDS;
+ i < req->n_channels && j < max_channels;
i++) {
flags = req->channels[i]->flags;
return j - start;
}
-static int
+static bool
wl1271_scan_sched_scan_channels(struct wl1271 *wl,
struct cfg80211_sched_scan_request *req,
struct wl1271_cmd_sched_scan_config *cfg)
{
- int idx = 0;
-
cfg->passive[0] =
- wl1271_scan_get_sched_scan_channels(wl, req, cfg->channels,
+ wl1271_scan_get_sched_scan_channels(wl, req, cfg->channels_2,
IEEE80211_BAND_2GHZ,
- false, true, idx);
- idx += cfg->passive[0];
-
+ false, true, 0,
+ MAX_CHANNELS_2GHZ);
cfg->active[0] =
- wl1271_scan_get_sched_scan_channels(wl, req, cfg->channels,
+ wl1271_scan_get_sched_scan_channels(wl, req, cfg->channels_2,
IEEE80211_BAND_2GHZ,
- false, false, idx);
- /*
- * 5GHz channels always start at position 14, not immediately
- * after the last 2.4GHz channel
- */
- idx = 14;
-
+ false, false,
+ cfg->passive[0],
+ MAX_CHANNELS_2GHZ);
cfg->passive[1] =
- wl1271_scan_get_sched_scan_channels(wl, req, cfg->channels,
+ wl1271_scan_get_sched_scan_channels(wl, req, cfg->channels_5,
IEEE80211_BAND_5GHZ,
- false, true, idx);
- idx += cfg->passive[1];
-
+ false, true, 0,
+ MAX_CHANNELS_5GHZ);
cfg->dfs =
- wl1271_scan_get_sched_scan_channels(wl, req, cfg->channels,
+ wl1271_scan_get_sched_scan_channels(wl, req, cfg->channels_5,
IEEE80211_BAND_5GHZ,
- true, true, idx);
- idx += cfg->dfs;
-
+ true, true,
+ cfg->passive[1],
+ MAX_CHANNELS_5GHZ);
cfg->active[1] =
- wl1271_scan_get_sched_scan_channels(wl, req, cfg->channels,
+ wl1271_scan_get_sched_scan_channels(wl, req, cfg->channels_5,
IEEE80211_BAND_5GHZ,
- false, false, idx);
- idx += cfg->active[1];
+ false, false,
+ cfg->passive[1] + cfg->dfs,
+ MAX_CHANNELS_5GHZ);
+ /* 802.11j channels are not supported yet */
+ cfg->passive[2] = 0;
+ cfg->active[2] = 0;
wl1271_debug(DEBUG_SCAN, " 2.4GHz: active %d passive %d",
cfg->active[0], cfg->passive[0]);
cfg->active[1], cfg->passive[1]);
wl1271_debug(DEBUG_SCAN, " DFS: %d", cfg->dfs);
- return idx;
+ return cfg->passive[0] || cfg->active[0] ||
+ cfg->passive[1] || cfg->active[1] || cfg->dfs ||
+ cfg->passive[2] || cfg->active[2];
}
int wl1271_scan_sched_scan_config(struct wl1271 *wl,
{
struct wl1271_cmd_sched_scan_config *cfg = NULL;
struct conf_sched_scan_settings *c = &wl->conf.sched_scan;
- int i, total_channels, ret;
+ int i, ret;
bool force_passive = !req->n_ssids;
wl1271_debug(DEBUG_CMD, "cmd sched_scan scan config");
cfg->ssid_len = 0;
}
- total_channels = wl1271_scan_sched_scan_channels(wl, req, cfg);
- if (total_channels == 0) {
+ if (!wl1271_scan_sched_scan_channels(wl, req, cfg)) {
wl1271_error("scan channel list is empty");
ret = -EINVAL;
goto out;
__le32 timeout;
} __packed;
-#define MAX_CHANNELS_ALL_BANDS 41
+#define MAX_CHANNELS_2GHZ 14
+#define MAX_CHANNELS_5GHZ 23
+#define MAX_CHANNELS_4GHZ 4
+
#define SCAN_MAX_CYCLE_INTERVALS 16
#define SCAN_MAX_BANDS 3
-enum {
- SCAN_CHANNEL_TYPE_2GHZ_PASSIVE,
- SCAN_CHANNEL_TYPE_2GHZ_ACTIVE,
- SCAN_CHANNEL_TYPE_5GHZ_PASSIVE,
- SCAN_CHANNEL_TYPE_5GHZ_ACTIVE,
- SCAN_CHANNEL_TYPE_5GHZ_DFS,
-};
-
enum {
SCAN_SSID_FILTER_ANY = 0,
SCAN_SSID_FILTER_SPECIFIC = 1,
u8 padding[3];
- struct conn_scan_ch_params channels[MAX_CHANNELS_ALL_BANDS];
+ struct conn_scan_ch_params channels_2[MAX_CHANNELS_2GHZ];
+ struct conn_scan_ch_params channels_5[MAX_CHANNELS_5GHZ];
+ struct conn_scan_ch_params channels_4[MAX_CHANNELS_4GHZ];
} __packed;
#include <linux/irq.h>
#include <linux/module.h>
-#include <linux/crc7.h>
#include <linux/vmalloc.h>
#include <linux/mmc/sdio_func.h>
#include <linux/mmc/sdio_ids.h>
#define SDIO_DEVICE_ID_TI_WL1271 0x4076
#endif
-static const struct sdio_device_id wl1271_devices[] = {
+static const struct sdio_device_id wl1271_devices[] __devinitconst = {
{ SDIO_DEVICE(SDIO_VENDOR_ID_TI, SDIO_DEVICE_ID_TI_WL1271) },
{}
};
enable_irq(wl->irq);
}
-static void wl1271_sdio_reset(struct wl1271 *wl)
-{
-}
-
-static void wl1271_sdio_init(struct wl1271 *wl)
-{
-}
-
static void wl1271_sdio_raw_read(struct wl1271 *wl, int addr, void *buf,
size_t len, bool fixed)
{
struct sdio_func *func = wl_to_func(wl);
int ret;
- /* Make sure the card will not be powered off by runtime PM */
- ret = pm_runtime_get_sync(&func->dev);
- if (ret < 0)
- goto out;
+ /* If enabled, tell runtime PM not to power off the card */
+ if (pm_runtime_enabled(&func->dev)) {
+ ret = pm_runtime_get_sync(&func->dev);
+ if (ret)
+ goto out;
+ }
/* Runtime PM might be disabled, so power up the card manually */
ret = mmc_power_restore_host(func->card->host);
if (ret < 0)
return ret;
- /* Let runtime PM know the card is powered off */
- return pm_runtime_put_sync(&func->dev);
+ /* If enabled, let runtime PM know the card is powered off */
+ if (pm_runtime_enabled(&func->dev))
+ ret = pm_runtime_put_sync(&func->dev);
+
+ return ret;
}
static int wl1271_sdio_set_power(struct wl1271 *wl, bool enable)
static struct wl1271_if_operations sdio_ops = {
.read = wl1271_sdio_raw_read,
.write = wl1271_sdio_raw_write,
- .reset = wl1271_sdio_reset,
- .init = wl1271_sdio_init,
.power = wl1271_sdio_set_power,
.dev = wl1271_sdio_wl_to_dev,
.enable_irq = wl1271_sdio_enable_interrupts,
goto out_free;
}
- enable_irq_wake(wl->irq);
- device_init_wakeup(wl1271_sdio_wl_to_dev(wl), 1);
-
- disable_irq(wl->irq);
+ ret = enable_irq_wake(wl->irq);
+ if (!ret) {
+ wl->irq_wake_enabled = true;
+ device_init_wakeup(wl1271_sdio_wl_to_dev(wl), 1);
- /* if sdio can keep power while host is suspended, enable wow */
- mmcflags = sdio_get_host_pm_caps(func);
- wl1271_debug(DEBUG_SDIO, "sdio PM caps = 0x%x", mmcflags);
+ /* if sdio can keep power while host is suspended, enable wow */
+ mmcflags = sdio_get_host_pm_caps(func);
+ wl1271_debug(DEBUG_SDIO, "sdio PM caps = 0x%x", mmcflags);
- if (mmcflags & MMC_PM_KEEP_POWER)
- hw->wiphy->wowlan.flags = WIPHY_WOWLAN_ANY;
+ if (mmcflags & MMC_PM_KEEP_POWER)
+ hw->wiphy->wowlan.flags = WIPHY_WOWLAN_ANY;
+ }
+ disable_irq(wl->irq);
ret = wl1271_init_ieee80211(wl);
if (ret)
/* Tell PM core that we don't need the card to be powered now */
pm_runtime_put_noidle(&func->dev);
- wl1271_notice("initialized");
-
return 0;
out_irq:
pm_runtime_get_noresume(&func->dev);
wl1271_unregister_hw(wl);
- device_init_wakeup(wl1271_sdio_wl_to_dev(wl), 0);
- disable_irq_wake(wl->irq);
+ if (wl->irq_wake_enabled) {
+ device_init_wakeup(wl1271_sdio_wl_to_dev(wl), 0);
+ disable_irq_wake(wl->irq);
+ }
free_irq(wl->irq, wl);
wl1271_free_hw(wl);
}
static int __init wl1271_init(void)
{
- int ret;
-
- ret = sdio_register_driver(&wl1271_sdio_driver);
- if (ret < 0) {
- wl1271_error("failed to register sdio driver: %d", ret);
- goto out;
- }
-
-out:
- return ret;
+ return sdio_register_driver(&wl1271_sdio_driver);
}
static void __exit wl1271_exit(void)
{
sdio_unregister_driver(&wl1271_sdio_driver);
-
- wl1271_notice("unloaded");
}
module_init(wl1271_init);
if (ret)
goto out_irq;
- wl1271_notice("initialized");
-
return 0;
out_irq:
static int __init wl1271_init(void)
{
- int ret;
-
- ret = spi_register_driver(&wl1271_spi_driver);
- if (ret < 0) {
- wl1271_error("failed to register spi driver: %d", ret);
- goto out;
- }
-
-out:
- return ret;
+ return spi_register_driver(&wl1271_spi_driver);
}
static void __exit wl1271_exit(void)
{
spi_unregister_driver(&wl1271_spi_driver);
-
- wl1271_notice("unloaded");
}
module_init(wl1271_init);
{
wl1271_debug(DEBUG_TESTMODE, "testmode cmd recover");
- ieee80211_queue_work(wl->hw, &wl->recovery_work);
+ wl12xx_queue_recovery_work(wl);
return 0;
}
spin_unlock_irqrestore(&wl->wl_lock, flags);
}
+static bool wl1271_tx_is_data_present(struct sk_buff *skb)
+{
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);
+
+ return ieee80211_is_data_present(hdr->frame_control);
+}
+
void wl1271_tx_work_locked(struct wl1271 *wl)
{
struct sk_buff *skb;
u32 buf_offset = 0;
bool sent_packets = false;
+ bool had_data = false;
+ bool is_ap = (wl->bss_type == BSS_TYPE_AP_BSS);
int ret;
if (unlikely(wl->state == WL1271_STATE_OFF))
return;
while ((skb = wl1271_skb_dequeue(wl))) {
+ if (wl1271_tx_is_data_present(skb))
+ had_data = true;
+
ret = wl1271_prepare_tx_frame(wl, skb, buf_offset);
if (ret == -EAGAIN) {
/*
wl1271_handle_tx_low_watermark(wl);
}
+ if (!is_ap && wl->conf.rx_streaming.interval && had_data &&
+ (wl->conf.rx_streaming.always ||
+ test_bit(WL1271_FLAG_SOFT_GEMINI, &wl->flags))) {
+ u32 timeout = wl->conf.rx_streaming.duration;
+
+ /* enable rx streaming */
+ if (!test_bit(WL1271_FLAG_RX_STREAMING_STARTED, &wl->flags))
+ ieee80211_queue_work(wl->hw,
+ &wl->rx_streaming_enable_work);
+
+ mod_timer(&wl->rx_streaming_timer,
+ jiffies + msecs_to_jiffies(timeout));
+ }
}
void wl1271_tx_work(struct work_struct *work)
/* return the packet to the stack */
skb_queue_tail(&wl->deferred_tx_queue, skb);
- ieee80211_queue_work(wl->hw, &wl->netstack_work);
+ queue_work(wl->freezable_wq, &wl->netstack_work);
wl1271_free_tx_id(wl, result->id);
}
info = IEEE80211_SKB_CB(skb);
info->status.rates[0].idx = -1;
info->status.rates[0].count = 0;
- ieee80211_tx_status(wl->hw, skb);
+ ieee80211_tx_status_ni(wl->hw, skb);
total++;
}
}
info = IEEE80211_SKB_CB(skb);
info->status.rates[0].idx = -1;
info->status.rates[0].count = 0;
- ieee80211_tx_status(wl->hw, skb);
+ ieee80211_tx_status_ni(wl->hw, skb);
}
}
}
info->status.rates[0].idx = -1;
info->status.rates[0].count = 0;
- ieee80211_tx_status(wl->hw, skb);
+ ieee80211_tx_status_ni(wl->hw, skb);
}
}
}
#define FW_VER_MINOR_1_SPARE_STA_MIN 58
#define FW_VER_MINOR_1_SPARE_AP_MIN 47
+#define FW_VER_MINOR_FWLOG_STA_MIN 70
+
struct wl1271_chip {
u32 id;
char fw_ver_str[ETHTOOL_BUSINFO_LEN];
u8 tx_total;
u8 reserved1;
__le16 reserved2;
- /* Total structure size is 68 bytes */
- u32 padding;
+ __le32 log_start_addr;
} __packed;
struct wl1271_fw_full_status {
WL1271_FLAG_DUMMY_PACKET_PENDING,
WL1271_FLAG_SUSPENDED,
WL1271_FLAG_PENDING_WORK,
+ WL1271_FLAG_SOFT_GEMINI,
+ WL1271_FLAG_RX_STREAMING_STARTED,
+ WL1271_FLAG_RECOVERY_IN_PROGRESS,
};
struct wl1271_link {
struct sk_buff_head deferred_tx_queue;
struct work_struct tx_work;
+ struct workqueue_struct *freezable_wq;
/* Pending TX frames */
unsigned long tx_frames_map[BITS_TO_LONGS(ACX_TX_DESCRIPTORS)];
/* Network stack work */
struct work_struct netstack_work;
+ /* FW log buffer */
+ u8 *fwlog;
+
+ /* Number of valid bytes in the FW log buffer */
+ ssize_t fwlog_size;
+
+ /* Sysfs FW log entry readers wait queue */
+ wait_queue_head_t fwlog_waitq;
+
/* Hardware recovery work */
struct work_struct recovery_work;
/* Default key (for WEP) */
u32 default_key;
+ /* Rx Streaming */
+ struct work_struct rx_streaming_enable_work;
+ struct work_struct rx_streaming_disable_work;
+ struct timer_list rx_streaming_timer;
+
unsigned int filters;
unsigned int rx_config;
unsigned int rx_filter;
* (currently, only "ANY" trigger is supported)
*/
bool wow_enabled;
+ bool irq_wake_enabled;
/*
* AP-mode - links indexed by HLID. The global and broadcast links
int wl1271_plt_start(struct wl1271 *wl);
int wl1271_plt_stop(struct wl1271 *wl);
+int wl1271_recalc_rx_streaming(struct wl1271 *wl);
+void wl12xx_queue_recovery_work(struct wl1271 *wl);
+size_t wl12xx_copy_fwlog(struct wl1271 *wl, u8 *memblock, size_t maxlen);
#define JOIN_TIMEOUT 5000 /* 5000 milliseconds to join */
/* WL128X requires aggregated packets to be aligned to the SDIO block size */
#define WL12XX_QUIRK_BLOCKSIZE_ALIGNMENT BIT(2)
+/*
+ * WL127X AP mode requires Low Power DRPw (LPD) enable to reduce power
+ * consumption
+ */
+#define WL12XX_QUIRK_LPD_MODE BIT(3)
+
+/* Older firmwares did not implement the FW logger over bus feature */
+#define WL12XX_QUIRK_FWLOG_NOT_IMPLEMENTED BIT(4)
+
+#define WL12XX_HW_BLOCK_SIZE 256
+
#endif
# Near Field Communication (NFC) devices
#
-menuconfig NFC_DEVICES
- bool "Near Field Communication (NFC) devices"
- default n
- ---help---
- You'll have to say Y if your computer contains an NFC device that
- you want to use under Linux.
-
- You can say N here if you don't have any Near Field Communication
- devices connected to your computer.
-
-if NFC_DEVICES
+menu "Near Field Communication (NFC) devices"
+ depends on NFC
config PN544_NFC
tristate "PN544 NFC driver"
To compile this driver as a module, choose m here. The module will
be called pn544.
+config NFC_PN533
+ tristate "NXP PN533 USB driver"
+ depends on USB
+ help
+ NXP PN533 USB driver.
+ This driver provides support for NFC NXP PN533 devices.
+
+ Say Y here to compile support for PN533 devices into the
+ kernel or say M to compile it as module (pn533).
-endif # NFC_DEVICES
+endmenu
#
obj-$(CONFIG_PN544_NFC) += pn544.o
+obj-$(CONFIG_NFC_PN533) += pn533.o
+
+ccflags-$(CONFIG_NFC_DEBUG) := -DDEBUG
--- /dev/null
+/*
+ * Copyright (C) 2011 Instituto Nokia de Tecnologia
+ *
+ * Authors:
+ * Lauro Ramos Venancio <lauro.venancio@openbossa.org>
+ * Aloisio Almeida Jr <aloisio.almeida@openbossa.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the
+ * Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <linux/device.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/usb.h>
+#include <linux/nfc.h>
+#include <linux/netdevice.h>
+#include <net/nfc.h>
+
+#define VERSION "0.1"
+
+#define PN533_VENDOR_ID 0x4CC
+#define PN533_PRODUCT_ID 0x2533
+
+#define SCM_VENDOR_ID 0x4E6
+#define SCL3711_PRODUCT_ID 0x5591
+
+static const struct usb_device_id pn533_table[] = {
+ { USB_DEVICE(PN533_VENDOR_ID, PN533_PRODUCT_ID) },
+ { USB_DEVICE(SCM_VENDOR_ID, SCL3711_PRODUCT_ID) },
+ { }
+};
+MODULE_DEVICE_TABLE(usb, pn533_table);
+
+/* frame definitions */
+#define PN533_FRAME_TAIL_SIZE 2
+#define PN533_FRAME_SIZE(f) (sizeof(struct pn533_frame) + f->datalen + \
+ PN533_FRAME_TAIL_SIZE)
+#define PN533_FRAME_ACK_SIZE (sizeof(struct pn533_frame) + 1)
+#define PN533_FRAME_CHECKSUM(f) (f->data[f->datalen])
+#define PN533_FRAME_POSTAMBLE(f) (f->data[f->datalen + 1])
+
+/* start of frame */
+#define PN533_SOF 0x00FF
+
+/* frame identifier: in/out/error */
+#define PN533_FRAME_IDENTIFIER(f) (f->data[0])
+#define PN533_DIR_OUT 0xD4
+#define PN533_DIR_IN 0xD5
+
+/* PN533 Commands */
+#define PN533_FRAME_CMD(f) (f->data[1])
+#define PN533_FRAME_CMD_PARAMS_PTR(f) (&f->data[2])
+#define PN533_FRAME_CMD_PARAMS_LEN(f) (f->datalen - 2)
+
+#define PN533_CMD_GET_FIRMWARE_VERSION 0x02
+#define PN533_CMD_RF_CONFIGURATION 0x32
+#define PN533_CMD_IN_DATA_EXCHANGE 0x40
+#define PN533_CMD_IN_LIST_PASSIVE_TARGET 0x4A
+#define PN533_CMD_IN_ATR 0x50
+#define PN533_CMD_IN_RELEASE 0x52
+
+#define PN533_CMD_RESPONSE(cmd) (cmd + 1)
+
+/* PN533 Return codes */
+#define PN533_CMD_RET_MASK 0x3F
+#define PN533_CMD_MI_MASK 0x40
+#define PN533_CMD_RET_SUCCESS 0x00
+
+struct pn533;
+
+typedef int (*pn533_cmd_complete_t) (struct pn533 *dev, void *arg,
+ u8 *params, int params_len);
+
+/* structs for pn533 commands */
+
+/* PN533_CMD_GET_FIRMWARE_VERSION */
+struct pn533_fw_version {
+ u8 ic;
+ u8 ver;
+ u8 rev;
+ u8 support;
+};
+
+/* PN533_CMD_RF_CONFIGURATION */
+#define PN533_CFGITEM_MAX_RETRIES 0x05
+
+#define PN533_CONFIG_MAX_RETRIES_NO_RETRY 0x00
+#define PN533_CONFIG_MAX_RETRIES_ENDLESS 0xFF
+
+struct pn533_config_max_retries {
+ u8 mx_rty_atr;
+ u8 mx_rty_psl;
+ u8 mx_rty_passive_act;
+} __packed;
+
+/* PN533_CMD_IN_LIST_PASSIVE_TARGET */
+
+/* felica commands opcode */
+#define PN533_FELICA_OPC_SENSF_REQ 0
+#define PN533_FELICA_OPC_SENSF_RES 1
+/* felica SENSF_REQ parameters */
+#define PN533_FELICA_SENSF_SC_ALL 0xFFFF
+#define PN533_FELICA_SENSF_RC_NO_SYSTEM_CODE 0
+#define PN533_FELICA_SENSF_RC_SYSTEM_CODE 1
+#define PN533_FELICA_SENSF_RC_ADVANCED_PROTOCOL 2
+
+/* type B initiator_data values */
+#define PN533_TYPE_B_AFI_ALL_FAMILIES 0
+#define PN533_TYPE_B_POLL_METHOD_TIMESLOT 0
+#define PN533_TYPE_B_POLL_METHOD_PROBABILISTIC 1
+
+union pn533_cmd_poll_initdata {
+ struct {
+ u8 afi;
+ u8 polling_method;
+ } __packed type_b;
+ struct {
+ u8 opcode;
+ __be16 sc;
+ u8 rc;
+ u8 tsn;
+ } __packed felica;
+};
+
+/* Poll modulations */
+enum {
+ PN533_POLL_MOD_106KBPS_A,
+ PN533_POLL_MOD_212KBPS_FELICA,
+ PN533_POLL_MOD_424KBPS_FELICA,
+ PN533_POLL_MOD_106KBPS_JEWEL,
+ PN533_POLL_MOD_847KBPS_B,
+
+ __PN533_POLL_MOD_AFTER_LAST,
+};
+#define PN533_POLL_MOD_MAX (__PN533_POLL_MOD_AFTER_LAST - 1)
+
+struct pn533_poll_modulations {
+ struct {
+ u8 maxtg;
+ u8 brty;
+ union pn533_cmd_poll_initdata initiator_data;
+ } __packed data;
+ u8 len;
+};
+
+const struct pn533_poll_modulations poll_mod[] = {
+ [PN533_POLL_MOD_106KBPS_A] = {
+ .data = {
+ .maxtg = 1,
+ .brty = 0,
+ },
+ .len = 2,
+ },
+ [PN533_POLL_MOD_212KBPS_FELICA] = {
+ .data = {
+ .maxtg = 1,
+ .brty = 1,
+ .initiator_data.felica = {
+ .opcode = PN533_FELICA_OPC_SENSF_REQ,
+ .sc = PN533_FELICA_SENSF_SC_ALL,
+ .rc = PN533_FELICA_SENSF_RC_NO_SYSTEM_CODE,
+ .tsn = 0,
+ },
+ },
+ .len = 7,
+ },
+ [PN533_POLL_MOD_424KBPS_FELICA] = {
+ .data = {
+ .maxtg = 1,
+ .brty = 2,
+ .initiator_data.felica = {
+ .opcode = PN533_FELICA_OPC_SENSF_REQ,
+ .sc = PN533_FELICA_SENSF_SC_ALL,
+ .rc = PN533_FELICA_SENSF_RC_NO_SYSTEM_CODE,
+ .tsn = 0,
+ },
+ },
+ .len = 7,
+ },
+ [PN533_POLL_MOD_106KBPS_JEWEL] = {
+ .data = {
+ .maxtg = 1,
+ .brty = 4,
+ },
+ .len = 2,
+ },
+ [PN533_POLL_MOD_847KBPS_B] = {
+ .data = {
+ .maxtg = 1,
+ .brty = 8,
+ .initiator_data.type_b = {
+ .afi = PN533_TYPE_B_AFI_ALL_FAMILIES,
+ .polling_method =
+ PN533_TYPE_B_POLL_METHOD_TIMESLOT,
+ },
+ },
+ .len = 3,
+ },
+};
+
+/* PN533_CMD_IN_ATR */
+
+struct pn533_cmd_activate_param {
+ u8 tg;
+ u8 next;
+} __packed;
+
+struct pn533_cmd_activate_response {
+ u8 status;
+ u8 nfcid3t[10];
+ u8 didt;
+ u8 bst;
+ u8 brt;
+ u8 to;
+ u8 ppt;
+ /* optional */
+ u8 gt[];
+} __packed;
+
+
+struct pn533 {
+ struct usb_device *udev;
+ struct usb_interface *interface;
+ struct nfc_dev *nfc_dev;
+
+ struct urb *out_urb;
+ int out_maxlen;
+ struct pn533_frame *out_frame;
+
+ struct urb *in_urb;
+ int in_maxlen;
+ struct pn533_frame *in_frame;
+
+ struct tasklet_struct tasklet;
+ struct pn533_frame *tklt_in_frame;
+ int tklt_in_error;
+
+ pn533_cmd_complete_t cmd_complete;
+ void *cmd_complete_arg;
+ struct semaphore cmd_lock;
+ u8 cmd;
+
+ struct pn533_poll_modulations *poll_mod_active[PN533_POLL_MOD_MAX + 1];
+ u8 poll_mod_count;
+ u8 poll_mod_curr;
+ u32 poll_protocols;
+
+ u8 tgt_available_prots;
+ u8 tgt_active_prot;
+};
+
+struct pn533_frame {
+ u8 preamble;
+ __be16 start_frame;
+ u8 datalen;
+ u8 datalen_checksum;
+ u8 data[];
+} __packed;
+
+/* The rule: value + checksum = 0 */
+static inline u8 pn533_checksum(u8 value)
+{
+ return ~value + 1;
+}
+
+/* The rule: sum(data elements) + checksum = 0 */
+static u8 pn533_data_checksum(u8 *data, int datalen)
+{
+ u8 sum = 0;
+ int i;
+
+ for (i = 0; i < datalen; i++)
+ sum += data[i];
+
+ return pn533_checksum(sum);
+}
+
+/**
+ * pn533_tx_frame_ack - create a ack frame
+ * @frame: The frame to be set as ack
+ *
+ * Ack is different type of standard frame. As a standard frame, it has
+ * preamble and start_frame. However the checksum of this frame must fail,
+ * i.e. datalen + datalen_checksum must NOT be zero. When the checksum test
+ * fails and datalen = 0 and datalen_checksum = 0xFF, the frame is a ack.
+ * After datalen_checksum field, the postamble is placed.
+ */
+static void pn533_tx_frame_ack(struct pn533_frame *frame)
+{
+ frame->preamble = 0;
+ frame->start_frame = cpu_to_be16(PN533_SOF);
+ frame->datalen = 0;
+ frame->datalen_checksum = 0xFF;
+ /* data[0] is used as postamble */
+ frame->data[0] = 0;
+}
+
+static void pn533_tx_frame_init(struct pn533_frame *frame, u8 cmd)
+{
+ frame->preamble = 0;
+ frame->start_frame = cpu_to_be16(PN533_SOF);
+ PN533_FRAME_IDENTIFIER(frame) = PN533_DIR_OUT;
+ PN533_FRAME_CMD(frame) = cmd;
+ frame->datalen = 2;
+}
+
+static void pn533_tx_frame_finish(struct pn533_frame *frame)
+{
+ frame->datalen_checksum = pn533_checksum(frame->datalen);
+
+ PN533_FRAME_CHECKSUM(frame) =
+ pn533_data_checksum(frame->data, frame->datalen);
+
+ PN533_FRAME_POSTAMBLE(frame) = 0;
+}
+
+static bool pn533_rx_frame_is_valid(struct pn533_frame *frame)
+{
+ u8 checksum;
+
+ if (frame->start_frame != cpu_to_be16(PN533_SOF))
+ return false;
+
+ checksum = pn533_checksum(frame->datalen);
+ if (checksum != frame->datalen_checksum)
+ return false;
+
+ checksum = pn533_data_checksum(frame->data, frame->datalen);
+ if (checksum != PN533_FRAME_CHECKSUM(frame))
+ return false;
+
+ return true;
+}
+
+static bool pn533_rx_frame_is_ack(struct pn533_frame *frame)
+{
+ if (frame->start_frame != cpu_to_be16(PN533_SOF))
+ return false;
+
+ if (frame->datalen != 0 || frame->datalen_checksum != 0xFF)
+ return false;
+
+ return true;
+}
+
+static bool pn533_rx_frame_is_cmd_response(struct pn533_frame *frame, u8 cmd)
+{
+ return (PN533_FRAME_CMD(frame) == PN533_CMD_RESPONSE(cmd));
+}
+
+static void pn533_tasklet_cmd_complete(unsigned long arg)
+{
+ struct pn533 *dev = (struct pn533 *) arg;
+ struct pn533_frame *in_frame = dev->tklt_in_frame;
+ int rc;
+
+ if (dev->tklt_in_error)
+ rc = dev->cmd_complete(dev, dev->cmd_complete_arg, NULL,
+ dev->tklt_in_error);
+ else
+ rc = dev->cmd_complete(dev, dev->cmd_complete_arg,
+ PN533_FRAME_CMD_PARAMS_PTR(in_frame),
+ PN533_FRAME_CMD_PARAMS_LEN(in_frame));
+
+ if (rc != -EINPROGRESS)
+ up(&dev->cmd_lock);
+}
+
+static void pn533_recv_response(struct urb *urb)
+{
+ struct pn533 *dev = urb->context;
+ struct pn533_frame *in_frame;
+
+ dev->tklt_in_frame = NULL;
+
+ switch (urb->status) {
+ case 0:
+ /* success */
+ break;
+ case -ECONNRESET:
+ case -ENOENT:
+ case -ESHUTDOWN:
+ nfc_dev_dbg(&dev->interface->dev, "Urb shutting down with"
+ " status: %d", urb->status);
+ dev->tklt_in_error = urb->status;
+ goto sched_tasklet;
+ default:
+ nfc_dev_err(&dev->interface->dev, "Nonzero urb status received:"
+ " %d", urb->status);
+ dev->tklt_in_error = urb->status;
+ goto sched_tasklet;
+ }
+
+ in_frame = dev->in_urb->transfer_buffer;
+
+ if (!pn533_rx_frame_is_valid(in_frame)) {
+ nfc_dev_err(&dev->interface->dev, "Received an invalid frame");
+ dev->tklt_in_error = -EIO;
+ goto sched_tasklet;
+ }
+
+ if (!pn533_rx_frame_is_cmd_response(in_frame, dev->cmd)) {
+ nfc_dev_err(&dev->interface->dev, "The received frame is not "
+ "response to the last command");
+ dev->tklt_in_error = -EIO;
+ goto sched_tasklet;
+ }
+
+ nfc_dev_dbg(&dev->interface->dev, "Received a valid frame");
+ dev->tklt_in_error = 0;
+ dev->tklt_in_frame = in_frame;
+
+sched_tasklet:
+ tasklet_schedule(&dev->tasklet);
+}
+
+static int pn533_submit_urb_for_response(struct pn533 *dev, gfp_t flags)
+{
+ dev->in_urb->complete = pn533_recv_response;
+
+ return usb_submit_urb(dev->in_urb, flags);
+}
+
+static void pn533_recv_ack(struct urb *urb)
+{
+ struct pn533 *dev = urb->context;
+ struct pn533_frame *in_frame;
+ int rc;
+
+ switch (urb->status) {
+ case 0:
+ /* success */
+ break;
+ case -ECONNRESET:
+ case -ENOENT:
+ case -ESHUTDOWN:
+ nfc_dev_dbg(&dev->interface->dev, "Urb shutting down with"
+ " status: %d", urb->status);
+ dev->tklt_in_error = urb->status;
+ goto sched_tasklet;
+ default:
+ nfc_dev_err(&dev->interface->dev, "Nonzero urb status received:"
+ " %d", urb->status);
+ dev->tklt_in_error = urb->status;
+ goto sched_tasklet;
+ }
+
+ in_frame = dev->in_urb->transfer_buffer;
+
+ if (!pn533_rx_frame_is_ack(in_frame)) {
+ nfc_dev_err(&dev->interface->dev, "Received an invalid ack");
+ dev->tklt_in_error = -EIO;
+ goto sched_tasklet;
+ }
+
+ nfc_dev_dbg(&dev->interface->dev, "Received a valid ack");
+
+ rc = pn533_submit_urb_for_response(dev, GFP_ATOMIC);
+ if (rc) {
+ nfc_dev_err(&dev->interface->dev, "usb_submit_urb failed with"
+ " result %d", rc);
+ dev->tklt_in_error = rc;
+ goto sched_tasklet;
+ }
+
+ return;
+
+sched_tasklet:
+ dev->tklt_in_frame = NULL;
+ tasklet_schedule(&dev->tasklet);
+}
+
+static int pn533_submit_urb_for_ack(struct pn533 *dev, gfp_t flags)
+{
+ dev->in_urb->complete = pn533_recv_ack;
+
+ return usb_submit_urb(dev->in_urb, flags);
+}
+
+static int pn533_send_ack(struct pn533 *dev, gfp_t flags)
+{
+ int rc;
+
+ nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
+
+ pn533_tx_frame_ack(dev->out_frame);
+
+ dev->out_urb->transfer_buffer = dev->out_frame;
+ dev->out_urb->transfer_buffer_length = PN533_FRAME_ACK_SIZE;
+ rc = usb_submit_urb(dev->out_urb, flags);
+
+ return rc;
+}
+
+static int __pn533_send_cmd_frame_async(struct pn533 *dev,
+ struct pn533_frame *out_frame,
+ struct pn533_frame *in_frame,
+ int in_frame_len,
+ pn533_cmd_complete_t cmd_complete,
+ void *arg, gfp_t flags)
+{
+ int rc;
+
+ nfc_dev_dbg(&dev->interface->dev, "Sending command 0x%x",
+ PN533_FRAME_CMD(out_frame));
+
+ dev->cmd = PN533_FRAME_CMD(out_frame);
+ dev->cmd_complete = cmd_complete;
+ dev->cmd_complete_arg = arg;
+
+ dev->out_urb->transfer_buffer = out_frame;
+ dev->out_urb->transfer_buffer_length =
+ PN533_FRAME_SIZE(out_frame);
+
+ dev->in_urb->transfer_buffer = in_frame;
+ dev->in_urb->transfer_buffer_length = in_frame_len;
+
+ rc = usb_submit_urb(dev->out_urb, flags);
+ if (rc)
+ return rc;
+
+ rc = pn533_submit_urb_for_ack(dev, flags);
+ if (rc)
+ goto error;
+
+ return 0;
+
+error:
+ usb_unlink_urb(dev->out_urb);
+ return rc;
+}
+
+static int pn533_send_cmd_frame_async(struct pn533 *dev,
+ struct pn533_frame *out_frame,
+ struct pn533_frame *in_frame,
+ int in_frame_len,
+ pn533_cmd_complete_t cmd_complete,
+ void *arg, gfp_t flags)
+{
+ int rc;
+
+ nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
+
+ if (down_trylock(&dev->cmd_lock))
+ return -EBUSY;
+
+ rc = __pn533_send_cmd_frame_async(dev, out_frame, in_frame,
+ in_frame_len, cmd_complete, arg, flags);
+ if (rc)
+ goto error;
+
+ return 0;
+error:
+ up(&dev->cmd_lock);
+ return rc;
+}
+
+struct pn533_sync_cmd_response {
+ int rc;
+ struct completion done;
+};
+
+static int pn533_sync_cmd_complete(struct pn533 *dev, void *_arg,
+ u8 *params, int params_len)
+{
+ struct pn533_sync_cmd_response *arg = _arg;
+
+ nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
+
+ arg->rc = 0;
+
+ if (params_len < 0) /* error */
+ arg->rc = params_len;
+
+ complete(&arg->done);
+
+ return 0;
+}
+
+static int pn533_send_cmd_frame_sync(struct pn533 *dev,
+ struct pn533_frame *out_frame,
+ struct pn533_frame *in_frame,
+ int in_frame_len)
+{
+ int rc;
+ struct pn533_sync_cmd_response arg;
+
+ nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
+
+ init_completion(&arg.done);
+
+ rc = pn533_send_cmd_frame_async(dev, out_frame, in_frame, in_frame_len,
+ pn533_sync_cmd_complete, &arg, GFP_KERNEL);
+ if (rc)
+ return rc;
+
+ wait_for_completion(&arg.done);
+
+ return arg.rc;
+}
+
+static void pn533_send_complete(struct urb *urb)
+{
+ struct pn533 *dev = urb->context;
+
+ nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
+
+ switch (urb->status) {
+ case 0:
+ /* success */
+ break;
+ case -ECONNRESET:
+ case -ENOENT:
+ case -ESHUTDOWN:
+ nfc_dev_dbg(&dev->interface->dev, "Urb shutting down with"
+ " status: %d", urb->status);
+ break;
+ default:
+ nfc_dev_dbg(&dev->interface->dev, "Nonzero urb status received:"
+ " %d", urb->status);
+ }
+}
+
+struct pn533_target_type_a {
+ __be16 sens_res;
+ u8 sel_res;
+ u8 nfcid_len;
+ u8 nfcid_data[];
+} __packed;
+
+
+#define PN533_TYPE_A_SENS_RES_NFCID1(x) ((u8)((be16_to_cpu(x) & 0x00C0) >> 6))
+#define PN533_TYPE_A_SENS_RES_SSD(x) ((u8)((be16_to_cpu(x) & 0x001F) >> 0))
+#define PN533_TYPE_A_SENS_RES_PLATCONF(x) ((u8)((be16_to_cpu(x) & 0x0F00) >> 8))
+
+#define PN533_TYPE_A_SENS_RES_SSD_JEWEL 0x00
+#define PN533_TYPE_A_SENS_RES_PLATCONF_JEWEL 0x0C
+
+#define PN533_TYPE_A_SEL_PROT(x) (((x) & 0x60) >> 5)
+#define PN533_TYPE_A_SEL_CASCADE(x) (((x) & 0x04) >> 2)
+
+#define PN533_TYPE_A_SEL_PROT_MIFARE 0
+#define PN533_TYPE_A_SEL_PROT_ISO14443 1
+#define PN533_TYPE_A_SEL_PROT_DEP 2
+#define PN533_TYPE_A_SEL_PROT_ISO14443_DEP 3
+
+static bool pn533_target_type_a_is_valid(struct pn533_target_type_a *type_a,
+ int target_data_len)
+{
+ u8 ssd;
+ u8 platconf;
+
+ if (target_data_len < sizeof(struct pn533_target_type_a))
+ return false;
+
+ /* The lenght check of nfcid[] and ats[] are not being performed because
+ the values are not being used */
+
+ /* Requirement 4.6.3.3 from NFC Forum Digital Spec */
+ ssd = PN533_TYPE_A_SENS_RES_SSD(type_a->sens_res);
+ platconf = PN533_TYPE_A_SENS_RES_PLATCONF(type_a->sens_res);
+
+ if ((ssd == PN533_TYPE_A_SENS_RES_SSD_JEWEL &&
+ platconf != PN533_TYPE_A_SENS_RES_PLATCONF_JEWEL) ||
+ (ssd != PN533_TYPE_A_SENS_RES_SSD_JEWEL &&
+ platconf == PN533_TYPE_A_SENS_RES_PLATCONF_JEWEL))
+ return false;
+
+ /* Requirements 4.8.2.1, 4.8.2.3, 4.8.2.5 and 4.8.2.7 from NFC Forum */
+ if (PN533_TYPE_A_SEL_CASCADE(type_a->sel_res) != 0)
+ return false;
+
+ return true;
+}
+
+static int pn533_target_found_type_a(struct nfc_target *nfc_tgt, u8 *tgt_data,
+ int tgt_data_len)
+{
+ struct pn533_target_type_a *tgt_type_a;
+
+ tgt_type_a = (struct pn533_target_type_a *) tgt_data;
+
+ if (!pn533_target_type_a_is_valid(tgt_type_a, tgt_data_len))
+ return -EPROTO;
+
+ switch (PN533_TYPE_A_SEL_PROT(tgt_type_a->sel_res)) {
+ case PN533_TYPE_A_SEL_PROT_MIFARE:
+ nfc_tgt->supported_protocols = NFC_PROTO_MIFARE_MASK;
+ break;
+ case PN533_TYPE_A_SEL_PROT_ISO14443:
+ nfc_tgt->supported_protocols = NFC_PROTO_ISO14443_MASK;
+ break;
+ case PN533_TYPE_A_SEL_PROT_DEP:
+ nfc_tgt->supported_protocols = NFC_PROTO_NFC_DEP_MASK;
+ break;
+ case PN533_TYPE_A_SEL_PROT_ISO14443_DEP:
+ nfc_tgt->supported_protocols = NFC_PROTO_ISO14443_MASK |
+ NFC_PROTO_NFC_DEP_MASK;
+ break;
+ }
+
+ nfc_tgt->sens_res = be16_to_cpu(tgt_type_a->sens_res);
+ nfc_tgt->sel_res = tgt_type_a->sel_res;
+
+ return 0;
+}
+
+struct pn533_target_felica {
+ u8 pol_res;
+ u8 opcode;
+ u8 nfcid2[8];
+ u8 pad[8];
+ /* optional */
+ u8 syst_code[];
+} __packed;
+
+#define PN533_FELICA_SENSF_NFCID2_DEP_B1 0x01
+#define PN533_FELICA_SENSF_NFCID2_DEP_B2 0xFE
+
+static bool pn533_target_felica_is_valid(struct pn533_target_felica *felica,
+ int target_data_len)
+{
+ if (target_data_len < sizeof(struct pn533_target_felica))
+ return false;
+
+ if (felica->opcode != PN533_FELICA_OPC_SENSF_RES)
+ return false;
+
+ return true;
+}
+
+static int pn533_target_found_felica(struct nfc_target *nfc_tgt, u8 *tgt_data,
+ int tgt_data_len)
+{
+ struct pn533_target_felica *tgt_felica;
+
+ tgt_felica = (struct pn533_target_felica *) tgt_data;
+
+ if (!pn533_target_felica_is_valid(tgt_felica, tgt_data_len))
+ return -EPROTO;
+
+ if (tgt_felica->nfcid2[0] == PN533_FELICA_SENSF_NFCID2_DEP_B1 &&
+ tgt_felica->nfcid2[1] ==
+ PN533_FELICA_SENSF_NFCID2_DEP_B2)
+ nfc_tgt->supported_protocols = NFC_PROTO_NFC_DEP_MASK;
+ else
+ nfc_tgt->supported_protocols = NFC_PROTO_FELICA_MASK;
+
+ return 0;
+}
+
+struct pn533_target_jewel {
+ __be16 sens_res;
+ u8 jewelid[4];
+} __packed;
+
+static bool pn533_target_jewel_is_valid(struct pn533_target_jewel *jewel,
+ int target_data_len)
+{
+ u8 ssd;
+ u8 platconf;
+
+ if (target_data_len < sizeof(struct pn533_target_jewel))
+ return false;
+
+ /* Requirement 4.6.3.3 from NFC Forum Digital Spec */
+ ssd = PN533_TYPE_A_SENS_RES_SSD(jewel->sens_res);
+ platconf = PN533_TYPE_A_SENS_RES_PLATCONF(jewel->sens_res);
+
+ if ((ssd == PN533_TYPE_A_SENS_RES_SSD_JEWEL &&
+ platconf != PN533_TYPE_A_SENS_RES_PLATCONF_JEWEL) ||
+ (ssd != PN533_TYPE_A_SENS_RES_SSD_JEWEL &&
+ platconf == PN533_TYPE_A_SENS_RES_PLATCONF_JEWEL))
+ return false;
+
+ return true;
+}
+
+static int pn533_target_found_jewel(struct nfc_target *nfc_tgt, u8 *tgt_data,
+ int tgt_data_len)
+{
+ struct pn533_target_jewel *tgt_jewel;
+
+ tgt_jewel = (struct pn533_target_jewel *) tgt_data;
+
+ if (!pn533_target_jewel_is_valid(tgt_jewel, tgt_data_len))
+ return -EPROTO;
+
+ nfc_tgt->supported_protocols = NFC_PROTO_JEWEL_MASK;
+ nfc_tgt->sens_res = be16_to_cpu(tgt_jewel->sens_res);
+
+ return 0;
+}
+
+struct pn533_type_b_prot_info {
+ u8 bitrate;
+ u8 fsci_type;
+ u8 fwi_adc_fo;
+} __packed;
+
+#define PN533_TYPE_B_PROT_FCSI(x) (((x) & 0xF0) >> 4)
+#define PN533_TYPE_B_PROT_TYPE(x) (((x) & 0x0F) >> 0)
+#define PN533_TYPE_B_PROT_TYPE_RFU_MASK 0x8
+
+struct pn533_type_b_sens_res {
+ u8 opcode;
+ u8 nfcid[4];
+ u8 appdata[4];
+ struct pn533_type_b_prot_info prot_info;
+} __packed;
+
+#define PN533_TYPE_B_OPC_SENSB_RES 0x50
+
+struct pn533_target_type_b {
+ struct pn533_type_b_sens_res sensb_res;
+ u8 attrib_res_len;
+ u8 attrib_res[];
+} __packed;
+
+static bool pn533_target_type_b_is_valid(struct pn533_target_type_b *type_b,
+ int target_data_len)
+{
+ if (target_data_len < sizeof(struct pn533_target_type_b))
+ return false;
+
+ if (type_b->sensb_res.opcode != PN533_TYPE_B_OPC_SENSB_RES)
+ return false;
+
+ if (PN533_TYPE_B_PROT_TYPE(type_b->sensb_res.prot_info.fsci_type) &
+ PN533_TYPE_B_PROT_TYPE_RFU_MASK)
+ return false;
+
+ return true;
+}
+
+static int pn533_target_found_type_b(struct nfc_target *nfc_tgt, u8 *tgt_data,
+ int tgt_data_len)
+{
+ struct pn533_target_type_b *tgt_type_b;
+
+ tgt_type_b = (struct pn533_target_type_b *) tgt_data;
+
+ if (!pn533_target_type_b_is_valid(tgt_type_b, tgt_data_len))
+ return -EPROTO;
+
+ nfc_tgt->supported_protocols = NFC_PROTO_ISO14443_MASK;
+
+ return 0;
+}
+
+struct pn533_poll_response {
+ u8 nbtg;
+ u8 tg;
+ u8 target_data[];
+} __packed;
+
+static int pn533_target_found(struct pn533 *dev,
+ struct pn533_poll_response *resp, int resp_len)
+{
+ int target_data_len;
+ struct nfc_target nfc_tgt;
+ int rc;
+
+ nfc_dev_dbg(&dev->interface->dev, "%s - modulation=%d", __func__,
+ dev->poll_mod_curr);
+
+ if (resp->tg != 1)
+ return -EPROTO;
+
+ target_data_len = resp_len - sizeof(struct pn533_poll_response);
+
+ switch (dev->poll_mod_curr) {
+ case PN533_POLL_MOD_106KBPS_A:
+ rc = pn533_target_found_type_a(&nfc_tgt, resp->target_data,
+ target_data_len);
+ break;
+ case PN533_POLL_MOD_212KBPS_FELICA:
+ case PN533_POLL_MOD_424KBPS_FELICA:
+ rc = pn533_target_found_felica(&nfc_tgt, resp->target_data,
+ target_data_len);
+ break;
+ case PN533_POLL_MOD_106KBPS_JEWEL:
+ rc = pn533_target_found_jewel(&nfc_tgt, resp->target_data,
+ target_data_len);
+ break;
+ case PN533_POLL_MOD_847KBPS_B:
+ rc = pn533_target_found_type_b(&nfc_tgt, resp->target_data,
+ target_data_len);
+ break;
+ default:
+ nfc_dev_err(&dev->interface->dev, "Unknown current poll"
+ " modulation");
+ return -EPROTO;
+ }
+
+ if (rc)
+ return rc;
+
+ if (!(nfc_tgt.supported_protocols & dev->poll_protocols)) {
+ nfc_dev_dbg(&dev->interface->dev, "The target found does not"
+ " have the desired protocol");
+ return -EAGAIN;
+ }
+
+ nfc_dev_dbg(&dev->interface->dev, "Target found - supported protocols: "
+ "0x%x", nfc_tgt.supported_protocols);
+
+ dev->tgt_available_prots = nfc_tgt.supported_protocols;
+
+ nfc_targets_found(dev->nfc_dev, &nfc_tgt, 1);
+
+ return 0;
+}
+
+static void pn533_poll_reset_mod_list(struct pn533 *dev)
+{
+ dev->poll_mod_count = 0;
+}
+
+static void pn533_poll_add_mod(struct pn533 *dev, u8 mod_index)
+{
+ dev->poll_mod_active[dev->poll_mod_count] =
+ (struct pn533_poll_modulations *) &poll_mod[mod_index];
+ dev->poll_mod_count++;
+}
+
+static void pn533_poll_create_mod_list(struct pn533 *dev, u32 protocols)
+{
+ pn533_poll_reset_mod_list(dev);
+
+ if (protocols & NFC_PROTO_MIFARE_MASK
+ || protocols & NFC_PROTO_ISO14443_MASK
+ || protocols & NFC_PROTO_NFC_DEP_MASK)
+ pn533_poll_add_mod(dev, PN533_POLL_MOD_106KBPS_A);
+
+ if (protocols & NFC_PROTO_FELICA_MASK
+ || protocols & NFC_PROTO_NFC_DEP_MASK) {
+ pn533_poll_add_mod(dev, PN533_POLL_MOD_212KBPS_FELICA);
+ pn533_poll_add_mod(dev, PN533_POLL_MOD_424KBPS_FELICA);
+ }
+
+ if (protocols & NFC_PROTO_JEWEL_MASK)
+ pn533_poll_add_mod(dev, PN533_POLL_MOD_106KBPS_JEWEL);
+
+ if (protocols & NFC_PROTO_ISO14443_MASK)
+ pn533_poll_add_mod(dev, PN533_POLL_MOD_847KBPS_B);
+}
+
+static void pn533_start_poll_frame(struct pn533_frame *frame,
+ struct pn533_poll_modulations *mod)
+{
+
+ pn533_tx_frame_init(frame, PN533_CMD_IN_LIST_PASSIVE_TARGET);
+
+ memcpy(PN533_FRAME_CMD_PARAMS_PTR(frame), &mod->data, mod->len);
+ frame->datalen += mod->len;
+
+ pn533_tx_frame_finish(frame);
+}
+
+static int pn533_start_poll_complete(struct pn533 *dev, void *arg,
+ u8 *params, int params_len)
+{
+ struct pn533_poll_response *resp;
+ struct pn533_poll_modulations *next_mod;
+ int rc;
+
+ nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
+
+ if (params_len == -ENOENT) {
+ nfc_dev_dbg(&dev->interface->dev, "Polling operation has been"
+ " stopped");
+ goto stop_poll;
+ }
+
+ if (params_len < 0) {
+ nfc_dev_err(&dev->interface->dev, "Error %d when running poll",
+ params_len);
+ goto stop_poll;
+ }
+
+ resp = (struct pn533_poll_response *) params;
+ if (resp->nbtg) {
+ rc = pn533_target_found(dev, resp, params_len);
+
+ /* We must stop the poll after a valid target found */
+ if (rc == 0)
+ goto stop_poll;
+
+ if (rc != -EAGAIN)
+ nfc_dev_err(&dev->interface->dev, "The target found is"
+ " not valid - continuing to poll");
+ }
+
+ dev->poll_mod_curr = (dev->poll_mod_curr + 1) % dev->poll_mod_count;
+
+ next_mod = dev->poll_mod_active[dev->poll_mod_curr];
+
+ nfc_dev_dbg(&dev->interface->dev, "Polling next modulation (0x%x)",
+ dev->poll_mod_curr);
+
+ pn533_start_poll_frame(dev->out_frame, next_mod);
+
+ /* Don't need to down the semaphore again */
+ rc = __pn533_send_cmd_frame_async(dev, dev->out_frame, dev->in_frame,
+ dev->in_maxlen, pn533_start_poll_complete,
+ NULL, GFP_ATOMIC);
+
+ if (rc == -EPERM) {
+ nfc_dev_dbg(&dev->interface->dev, "Cannot poll next modulation"
+ " because poll has been stopped");
+ goto stop_poll;
+ }
+
+ if (rc) {
+ nfc_dev_err(&dev->interface->dev, "Error %d when trying to poll"
+ " next modulation", rc);
+ goto stop_poll;
+ }
+
+ /* Inform caller function to do not up the semaphore */
+ return -EINPROGRESS;
+
+stop_poll:
+ pn533_poll_reset_mod_list(dev);
+ dev->poll_protocols = 0;
+ return 0;
+}
+
+static int pn533_start_poll(struct nfc_dev *nfc_dev, u32 protocols)
+{
+ struct pn533 *dev = nfc_get_drvdata(nfc_dev);
+ struct pn533_poll_modulations *start_mod;
+ int rc;
+
+ nfc_dev_dbg(&dev->interface->dev, "%s - protocols=0x%x", __func__,
+ protocols);
+
+ if (dev->poll_mod_count) {
+ nfc_dev_err(&dev->interface->dev, "Polling operation already"
+ " active");
+ return -EBUSY;
+ }
+
+ if (dev->tgt_active_prot) {
+ nfc_dev_err(&dev->interface->dev, "Cannot poll with a target"
+ " already activated");
+ return -EBUSY;
+ }
+
+ pn533_poll_create_mod_list(dev, protocols);
+
+ if (!dev->poll_mod_count) {
+ nfc_dev_err(&dev->interface->dev, "No valid protocols"
+ " specified");
+ rc = -EINVAL;
+ goto error;
+ }
+
+ nfc_dev_dbg(&dev->interface->dev, "It will poll %d modulations types",
+ dev->poll_mod_count);
+
+ dev->poll_mod_curr = 0;
+ start_mod = dev->poll_mod_active[dev->poll_mod_curr];
+
+ pn533_start_poll_frame(dev->out_frame, start_mod);
+
+ rc = pn533_send_cmd_frame_async(dev, dev->out_frame, dev->in_frame,
+ dev->in_maxlen, pn533_start_poll_complete,
+ NULL, GFP_KERNEL);
+
+ if (rc) {
+ nfc_dev_err(&dev->interface->dev, "Error %d when trying to"
+ " start poll", rc);
+ goto error;
+ }
+
+ dev->poll_protocols = protocols;
+
+ return 0;
+
+error:
+ pn533_poll_reset_mod_list(dev);
+ return rc;
+}
+
+static void pn533_stop_poll(struct nfc_dev *nfc_dev)
+{
+ struct pn533 *dev = nfc_get_drvdata(nfc_dev);
+
+ nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
+
+ if (!dev->poll_mod_count) {
+ nfc_dev_dbg(&dev->interface->dev, "Polling operation was not"
+ " running");
+ return;
+ }
+
+ /* An ack will cancel the last issued command (poll) */
+ pn533_send_ack(dev, GFP_KERNEL);
+
+ /* prevent pn533_start_poll_complete to issue a new poll meanwhile */
+ usb_kill_urb(dev->in_urb);
+}
+
+static int pn533_activate_target_nfcdep(struct pn533 *dev)
+{
+ struct pn533_cmd_activate_param param;
+ struct pn533_cmd_activate_response *resp;
+ int rc;
+
+ nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
+
+ pn533_tx_frame_init(dev->out_frame, PN533_CMD_IN_ATR);
+
+ param.tg = 1;
+ param.next = 0;
+ memcpy(PN533_FRAME_CMD_PARAMS_PTR(dev->out_frame), ¶m,
+ sizeof(struct pn533_cmd_activate_param));
+ dev->out_frame->datalen += sizeof(struct pn533_cmd_activate_param);
+
+ pn533_tx_frame_finish(dev->out_frame);
+
+ rc = pn533_send_cmd_frame_sync(dev, dev->out_frame, dev->in_frame,
+ dev->in_maxlen);
+ if (rc)
+ return rc;
+
+ resp = (struct pn533_cmd_activate_response *)
+ PN533_FRAME_CMD_PARAMS_PTR(dev->in_frame);
+ rc = resp->status & PN533_CMD_RET_MASK;
+ if (rc != PN533_CMD_RET_SUCCESS)
+ return -EIO;
+
+ return 0;
+}
+
+static int pn533_activate_target(struct nfc_dev *nfc_dev, u32 target_idx,
+ u32 protocol)
+{
+ struct pn533 *dev = nfc_get_drvdata(nfc_dev);
+ int rc;
+
+ nfc_dev_dbg(&dev->interface->dev, "%s - protocol=%u", __func__,
+ protocol);
+
+ if (dev->poll_mod_count) {
+ nfc_dev_err(&dev->interface->dev, "Cannot activate while"
+ " polling");
+ return -EBUSY;
+ }
+
+ if (dev->tgt_active_prot) {
+ nfc_dev_err(&dev->interface->dev, "There is already an active"
+ " target");
+ return -EBUSY;
+ }
+
+ if (!dev->tgt_available_prots) {
+ nfc_dev_err(&dev->interface->dev, "There is no available target"
+ " to activate");
+ return -EINVAL;
+ }
+
+ if (!(dev->tgt_available_prots & (1 << protocol))) {
+ nfc_dev_err(&dev->interface->dev, "The target does not support"
+ " the requested protocol %u", protocol);
+ return -EINVAL;
+ }
+
+ if (protocol == NFC_PROTO_NFC_DEP) {
+ rc = pn533_activate_target_nfcdep(dev);
+ if (rc) {
+ nfc_dev_err(&dev->interface->dev, "Error %d when"
+ " activating target with"
+ " NFC_DEP protocol", rc);
+ return rc;
+ }
+ }
+
+ dev->tgt_active_prot = protocol;
+ dev->tgt_available_prots = 0;
+
+ return 0;
+}
+
+static void pn533_deactivate_target(struct nfc_dev *nfc_dev, u32 target_idx)
+{
+ struct pn533 *dev = nfc_get_drvdata(nfc_dev);
+ u8 tg;
+ u8 status;
+ int rc;
+
+ nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
+
+ if (!dev->tgt_active_prot) {
+ nfc_dev_err(&dev->interface->dev, "There is no active target");
+ return;
+ }
+
+ dev->tgt_active_prot = 0;
+
+ pn533_tx_frame_init(dev->out_frame, PN533_CMD_IN_RELEASE);
+
+ tg = 1;
+ memcpy(PN533_FRAME_CMD_PARAMS_PTR(dev->out_frame), &tg, sizeof(u8));
+ dev->out_frame->datalen += sizeof(u8);
+
+ pn533_tx_frame_finish(dev->out_frame);
+
+ rc = pn533_send_cmd_frame_sync(dev, dev->out_frame, dev->in_frame,
+ dev->in_maxlen);
+ if (rc) {
+ nfc_dev_err(&dev->interface->dev, "Error when sending release"
+ " command to the controller");
+ return;
+ }
+
+ status = PN533_FRAME_CMD_PARAMS_PTR(dev->in_frame)[0];
+ rc = status & PN533_CMD_RET_MASK;
+ if (rc != PN533_CMD_RET_SUCCESS)
+ nfc_dev_err(&dev->interface->dev, "Error 0x%x when releasing"
+ " the target", rc);
+
+ return;
+}
+
+#define PN533_CMD_DATAEXCH_HEAD_LEN (sizeof(struct pn533_frame) + 3)
+#define PN533_CMD_DATAEXCH_DATA_MAXLEN 262
+
+static int pn533_data_exchange_tx_frame(struct pn533 *dev, struct sk_buff *skb)
+{
+ int payload_len = skb->len;
+ struct pn533_frame *out_frame;
+ struct sk_buff *discarded;
+ u8 tg;
+
+ nfc_dev_dbg(&dev->interface->dev, "%s - Sending %d bytes", __func__,
+ payload_len);
+
+ if (payload_len > PN533_CMD_DATAEXCH_DATA_MAXLEN) {
+ /* TODO: Implement support to multi-part data exchange */
+ nfc_dev_err(&dev->interface->dev, "Data length greater than the"
+ " max allowed: %d",
+ PN533_CMD_DATAEXCH_DATA_MAXLEN);
+ return -ENOSYS;
+ }
+
+ /* Reserving header space */
+ if (skb_cow_head(skb, PN533_CMD_DATAEXCH_HEAD_LEN)) {
+ nfc_dev_err(&dev->interface->dev, "Error to add header data");
+ return -ENOMEM;
+ }
+
+ /* Reserving tail space, see pn533_tx_frame_finish */
+ if (skb_cow_data(skb, PN533_FRAME_TAIL_SIZE, &discarded) < 0) {
+ nfc_dev_err(&dev->interface->dev, "Error to add tail data");
+ return -ENOMEM;
+ }
+
+ skb_push(skb, PN533_CMD_DATAEXCH_HEAD_LEN);
+ out_frame = (struct pn533_frame *) skb->data;
+
+ pn533_tx_frame_init(out_frame, PN533_CMD_IN_DATA_EXCHANGE);
+
+ tg = 1;
+ memcpy(PN533_FRAME_CMD_PARAMS_PTR(out_frame), &tg, sizeof(u8));
+ out_frame->datalen += sizeof(u8);
+
+ /* The data is already in the out_frame, just update the datalen */
+ out_frame->datalen += payload_len;
+
+ pn533_tx_frame_finish(out_frame);
+ skb_put(skb, PN533_FRAME_TAIL_SIZE);
+
+ return 0;
+}
+
+struct pn533_data_exchange_arg {
+ struct sk_buff *skb_resp;
+ struct sk_buff *skb_out;
+ data_exchange_cb_t cb;
+ void *cb_context;
+};
+
+static int pn533_data_exchange_complete(struct pn533 *dev, void *_arg,
+ u8 *params, int params_len)
+{
+ struct pn533_data_exchange_arg *arg = _arg;
+ struct sk_buff *skb_resp = arg->skb_resp;
+ struct pn533_frame *in_frame = (struct pn533_frame *) skb_resp->data;
+ int err = 0;
+ u8 status;
+ u8 cmd_ret;
+
+ nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
+
+ dev_kfree_skb_irq(arg->skb_out);
+
+ if (params_len < 0) { /* error */
+ err = params_len;
+ goto error;
+ }
+
+ skb_put(skb_resp, PN533_FRAME_SIZE(in_frame));
+
+ status = params[0];
+
+ cmd_ret = status & PN533_CMD_RET_MASK;
+ if (cmd_ret != PN533_CMD_RET_SUCCESS) {
+ nfc_dev_err(&dev->interface->dev, "PN533 reported error %d when"
+ " exchanging data", cmd_ret);
+ err = -EIO;
+ goto error;
+ }
+
+ if (status & PN533_CMD_MI_MASK) {
+ /* TODO: Implement support to multi-part data exchange */
+ nfc_dev_err(&dev->interface->dev, "Multi-part message not yet"
+ " supported");
+ /* Prevent the other messages from controller */
+ pn533_send_ack(dev, GFP_ATOMIC);
+ err = -ENOSYS;
+ goto error;
+ }
+
+ skb_pull(skb_resp, PN533_CMD_DATAEXCH_HEAD_LEN);
+ skb_trim(skb_resp, skb_resp->len - PN533_FRAME_TAIL_SIZE);
+
+ arg->cb(arg->cb_context, skb_resp, 0);
+ kfree(arg);
+ return 0;
+
+error:
+ dev_kfree_skb_irq(skb_resp);
+ arg->cb(arg->cb_context, NULL, err);
+ kfree(arg);
+ return 0;
+}
+
+int pn533_data_exchange(struct nfc_dev *nfc_dev, u32 target_idx,
+ struct sk_buff *skb,
+ data_exchange_cb_t cb,
+ void *cb_context)
+{
+ struct pn533 *dev = nfc_get_drvdata(nfc_dev);
+ struct pn533_frame *out_frame, *in_frame;
+ struct pn533_data_exchange_arg *arg;
+ struct sk_buff *skb_resp;
+ int skb_resp_len;
+ int rc;
+
+ nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
+
+ if (!dev->tgt_active_prot) {
+ nfc_dev_err(&dev->interface->dev, "Cannot exchange data if"
+ " there is no active target");
+ rc = -EINVAL;
+ goto error;
+ }
+
+ rc = pn533_data_exchange_tx_frame(dev, skb);
+ if (rc)
+ goto error;
+
+ skb_resp_len = PN533_CMD_DATAEXCH_HEAD_LEN +
+ PN533_CMD_DATAEXCH_DATA_MAXLEN +
+ PN533_FRAME_TAIL_SIZE;
+
+ skb_resp = nfc_alloc_skb(skb_resp_len, GFP_KERNEL);
+ if (!skb_resp) {
+ rc = -ENOMEM;
+ goto error;
+ }
+
+ in_frame = (struct pn533_frame *) skb_resp->data;
+ out_frame = (struct pn533_frame *) skb->data;
+
+ arg = kmalloc(sizeof(struct pn533_data_exchange_arg), GFP_KERNEL);
+ if (!arg) {
+ rc = -ENOMEM;
+ goto free_skb_resp;
+ }
+
+ arg->skb_resp = skb_resp;
+ arg->skb_out = skb;
+ arg->cb = cb;
+ arg->cb_context = cb_context;
+
+ rc = pn533_send_cmd_frame_async(dev, out_frame, in_frame, skb_resp_len,
+ pn533_data_exchange_complete, arg,
+ GFP_KERNEL);
+ if (rc) {
+ nfc_dev_err(&dev->interface->dev, "Error %d when trying to"
+ " perform data_exchange", rc);
+ goto free_arg;
+ }
+
+ return 0;
+
+free_arg:
+ kfree(arg);
+free_skb_resp:
+ kfree_skb(skb_resp);
+error:
+ kfree_skb(skb);
+ return rc;
+}
+
+static int pn533_set_configuration(struct pn533 *dev, u8 cfgitem, u8 *cfgdata,
+ u8 cfgdata_len)
+{
+ int rc;
+ u8 *params;
+
+ nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
+
+ pn533_tx_frame_init(dev->out_frame, PN533_CMD_RF_CONFIGURATION);
+
+ params = PN533_FRAME_CMD_PARAMS_PTR(dev->out_frame);
+ params[0] = cfgitem;
+ memcpy(¶ms[1], cfgdata, cfgdata_len);
+ dev->out_frame->datalen += (1 + cfgdata_len);
+
+ pn533_tx_frame_finish(dev->out_frame);
+
+ rc = pn533_send_cmd_frame_sync(dev, dev->out_frame, dev->in_frame,
+ dev->in_maxlen);
+
+ return rc;
+}
+
+struct nfc_ops pn533_nfc_ops = {
+ .start_poll = pn533_start_poll,
+ .stop_poll = pn533_stop_poll,
+ .activate_target = pn533_activate_target,
+ .deactivate_target = pn533_deactivate_target,
+ .data_exchange = pn533_data_exchange,
+};
+
+static int pn533_probe(struct usb_interface *interface,
+ const struct usb_device_id *id)
+{
+ struct pn533_fw_version *fw_ver;
+ struct pn533 *dev;
+ struct usb_host_interface *iface_desc;
+ struct usb_endpoint_descriptor *endpoint;
+ struct pn533_config_max_retries max_retries;
+ int in_endpoint = 0;
+ int out_endpoint = 0;
+ int rc = -ENOMEM;
+ int i;
+ u32 protocols;
+
+ dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+ if (!dev)
+ return -ENOMEM;
+
+ dev->udev = usb_get_dev(interface_to_usbdev(interface));
+ dev->interface = interface;
+ sema_init(&dev->cmd_lock, 1);
+
+ iface_desc = interface->cur_altsetting;
+ for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
+ endpoint = &iface_desc->endpoint[i].desc;
+
+ if (!in_endpoint && usb_endpoint_is_bulk_in(endpoint)) {
+ dev->in_maxlen = le16_to_cpu(endpoint->wMaxPacketSize);
+ in_endpoint = endpoint->bEndpointAddress;
+ }
+
+ if (!out_endpoint && usb_endpoint_is_bulk_out(endpoint)) {
+ dev->out_maxlen =
+ le16_to_cpu(endpoint->wMaxPacketSize);
+ out_endpoint = endpoint->bEndpointAddress;
+ }
+ }
+
+ if (!in_endpoint || !out_endpoint) {
+ nfc_dev_err(&interface->dev, "Could not find bulk-in or"
+ " bulk-out endpoint");
+ rc = -ENODEV;
+ goto error;
+ }
+
+ dev->in_frame = kmalloc(dev->in_maxlen, GFP_KERNEL);
+ dev->in_urb = usb_alloc_urb(0, GFP_KERNEL);
+ dev->out_frame = kmalloc(dev->out_maxlen, GFP_KERNEL);
+ dev->out_urb = usb_alloc_urb(0, GFP_KERNEL);
+
+ if (!dev->in_frame || !dev->out_frame ||
+ !dev->in_urb || !dev->out_urb)
+ goto error;
+
+ usb_fill_bulk_urb(dev->in_urb, dev->udev,
+ usb_rcvbulkpipe(dev->udev, in_endpoint),
+ NULL, 0, NULL, dev);
+ usb_fill_bulk_urb(dev->out_urb, dev->udev,
+ usb_sndbulkpipe(dev->udev, out_endpoint),
+ NULL, 0,
+ pn533_send_complete, dev);
+
+ tasklet_init(&dev->tasklet, pn533_tasklet_cmd_complete, (ulong)dev);
+
+ usb_set_intfdata(interface, dev);
+
+ pn533_tx_frame_init(dev->out_frame, PN533_CMD_GET_FIRMWARE_VERSION);
+ pn533_tx_frame_finish(dev->out_frame);
+
+ rc = pn533_send_cmd_frame_sync(dev, dev->out_frame, dev->in_frame,
+ dev->in_maxlen);
+ if (rc)
+ goto kill_tasklet;
+
+ fw_ver = (struct pn533_fw_version *)
+ PN533_FRAME_CMD_PARAMS_PTR(dev->in_frame);
+ nfc_dev_info(&dev->interface->dev, "NXP PN533 firmware ver %d.%d now"
+ " attached", fw_ver->ver, fw_ver->rev);
+
+ protocols = NFC_PROTO_JEWEL_MASK
+ | NFC_PROTO_MIFARE_MASK | NFC_PROTO_FELICA_MASK
+ | NFC_PROTO_ISO14443_MASK
+ | NFC_PROTO_NFC_DEP_MASK;
+
+ dev->nfc_dev = nfc_allocate_device(&pn533_nfc_ops, protocols);
+ if (!dev->nfc_dev)
+ goto kill_tasklet;
+
+ nfc_set_parent_dev(dev->nfc_dev, &interface->dev);
+ nfc_set_drvdata(dev->nfc_dev, dev);
+
+ rc = nfc_register_device(dev->nfc_dev);
+ if (rc)
+ goto free_nfc_dev;
+
+ max_retries.mx_rty_atr = PN533_CONFIG_MAX_RETRIES_ENDLESS;
+ max_retries.mx_rty_psl = 2;
+ max_retries.mx_rty_passive_act = PN533_CONFIG_MAX_RETRIES_NO_RETRY;
+
+ rc = pn533_set_configuration(dev, PN533_CFGITEM_MAX_RETRIES,
+ (u8 *) &max_retries, sizeof(max_retries));
+
+ if (rc) {
+ nfc_dev_err(&dev->interface->dev, "Error on setting MAX_RETRIES"
+ " config");
+ goto free_nfc_dev;
+ }
+
+ return 0;
+
+free_nfc_dev:
+ nfc_free_device(dev->nfc_dev);
+kill_tasklet:
+ tasklet_kill(&dev->tasklet);
+error:
+ kfree(dev->in_frame);
+ usb_free_urb(dev->in_urb);
+ kfree(dev->out_frame);
+ usb_free_urb(dev->out_urb);
+ kfree(dev);
+ return rc;
+}
+
+static void pn533_disconnect(struct usb_interface *interface)
+{
+ struct pn533 *dev;
+
+ dev = usb_get_intfdata(interface);
+ usb_set_intfdata(interface, NULL);
+
+ nfc_unregister_device(dev->nfc_dev);
+ nfc_free_device(dev->nfc_dev);
+
+ usb_kill_urb(dev->in_urb);
+ usb_kill_urb(dev->out_urb);
+
+ tasklet_kill(&dev->tasklet);
+
+ kfree(dev->in_frame);
+ usb_free_urb(dev->in_urb);
+ kfree(dev->out_frame);
+ usb_free_urb(dev->out_urb);
+ kfree(dev);
+
+ nfc_dev_info(&dev->interface->dev, "NXP PN533 NFC device disconnected");
+}
+
+static struct usb_driver pn533_driver = {
+ .name = "pn533",
+ .probe = pn533_probe,
+ .disconnect = pn533_disconnect,
+ .id_table = pn533_table,
+};
+
+static int __init pn533_init(void)
+{
+ int rc;
+
+ rc = usb_register(&pn533_driver);
+ if (rc)
+ err("usb_register failed. Error number %d", rc);
+
+ return rc;
+}
+
+static void __exit pn533_exit(void)
+{
+ usb_deregister(&pn533_driver);
+}
+
+module_init(pn533_init);
+module_exit(pn533_exit);
+
+MODULE_AUTHOR("Lauro Ramos Venancio <lauro.venancio@openbossa.org>,"
+ " Aloisio Almeida Jr <aloisio.almeida@openbossa.org>");
+MODULE_DESCRIPTION("PN533 usb driver ver " VERSION);
+MODULE_VERSION(VERSION);
+MODULE_LICENSE("GPL");
static void ssb_pci_get_boardinfo(struct ssb_bus *bus,
struct ssb_boardinfo *bi)
{
- pci_read_config_word(bus->host_pci, PCI_SUBSYSTEM_VENDOR_ID,
- &bi->vendor);
- pci_read_config_word(bus->host_pci, PCI_SUBSYSTEM_ID,
- &bi->type);
- pci_read_config_word(bus->host_pci, PCI_REVISION_ID,
- &bi->rev);
+ bi->vendor = bus->host_pci->subsystem_vendor;
+ bi->type = bus->host_pci->subsystem_device;
+ bi->rev = bus->host_pci->revision;
}
int ssb_pci_get_invariants(struct ssb_bus *bus,
--- /dev/null
+/*
+ * Copyright (C) 2011 Instituto Nokia de Tecnologia
+ *
+ * Authors:
+ * Lauro Ramos Venancio <lauro.venancio@openbossa.org>
+ * Aloisio Almeida Jr <aloisio.almeida@openbossa.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the
+ * Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __LINUX_NFC_H
+#define __LINUX_NFC_H
+
+#include <linux/types.h>
+#include <linux/socket.h>
+
+#define NFC_GENL_NAME "nfc"
+#define NFC_GENL_VERSION 1
+
+#define NFC_GENL_MCAST_EVENT_NAME "events"
+
+/**
+ * enum nfc_commands - supported nfc commands
+ *
+ * @NFC_CMD_UNSPEC: unspecified command
+ *
+ * @NFC_CMD_GET_DEVICE: request information about a device (requires
+ * %NFC_ATTR_DEVICE_INDEX) or dump request to get a list of all nfc devices
+ * @NFC_CMD_START_POLL: start polling for targets using the given protocols
+ * (requires %NFC_ATTR_DEVICE_INDEX and %NFC_ATTR_PROTOCOLS)
+ * @NFC_CMD_STOP_POLL: stop polling for targets (requires
+ * %NFC_ATTR_DEVICE_INDEX)
+ * @NFC_CMD_GET_TARGET: dump all targets found by the previous poll (requires
+ * %NFC_ATTR_DEVICE_INDEX)
+ * @NFC_EVENT_TARGETS_FOUND: event emitted when a new target is found
+ * (it sends %NFC_ATTR_DEVICE_INDEX)
+ * @NFC_EVENT_DEVICE_ADDED: event emitted when a new device is registred
+ * (it sends %NFC_ATTR_DEVICE_NAME, %NFC_ATTR_DEVICE_INDEX and
+ * %NFC_ATTR_PROTOCOLS)
+ * @NFC_EVENT_DEVICE_REMOVED: event emitted when a device is removed
+ * (it sends %NFC_ATTR_DEVICE_INDEX)
+ */
+enum nfc_commands {
+ NFC_CMD_UNSPEC,
+ NFC_CMD_GET_DEVICE,
+ NFC_CMD_START_POLL,
+ NFC_CMD_STOP_POLL,
+ NFC_CMD_GET_TARGET,
+ NFC_EVENT_TARGETS_FOUND,
+ NFC_EVENT_DEVICE_ADDED,
+ NFC_EVENT_DEVICE_REMOVED,
+/* private: internal use only */
+ __NFC_CMD_AFTER_LAST
+};
+#define NFC_CMD_MAX (__NFC_CMD_AFTER_LAST - 1)
+
+/**
+ * enum nfc_attrs - supported nfc attributes
+ *
+ * @NFC_ATTR_UNSPEC: unspecified attribute
+ *
+ * @NFC_ATTR_DEVICE_INDEX: index of nfc device
+ * @NFC_ATTR_DEVICE_NAME: device name, max 8 chars
+ * @NFC_ATTR_PROTOCOLS: nfc protocols - bitwise or-ed combination from
+ * NFC_PROTO_*_MASK constants
+ * @NFC_ATTR_TARGET_INDEX: index of the nfc target
+ * @NFC_ATTR_TARGET_SENS_RES: NFC-A targets extra information such as NFCID
+ * @NFC_ATTR_TARGET_SEL_RES: NFC-A targets extra information (useful if the
+ * target is not NFC-Forum compliant)
+ */
+enum nfc_attrs {
+ NFC_ATTR_UNSPEC,
+ NFC_ATTR_DEVICE_INDEX,
+ NFC_ATTR_DEVICE_NAME,
+ NFC_ATTR_PROTOCOLS,
+ NFC_ATTR_TARGET_INDEX,
+ NFC_ATTR_TARGET_SENS_RES,
+ NFC_ATTR_TARGET_SEL_RES,
+/* private: internal use only */
+ __NFC_ATTR_AFTER_LAST
+};
+#define NFC_ATTR_MAX (__NFC_ATTR_AFTER_LAST - 1)
+
+#define NFC_DEVICE_NAME_MAXSIZE 8
+
+/* NFC protocols */
+#define NFC_PROTO_JEWEL 1
+#define NFC_PROTO_MIFARE 2
+#define NFC_PROTO_FELICA 3
+#define NFC_PROTO_ISO14443 4
+#define NFC_PROTO_NFC_DEP 5
+
+#define NFC_PROTO_MAX 6
+
+/* NFC protocols masks used in bitsets */
+#define NFC_PROTO_JEWEL_MASK (1 << NFC_PROTO_JEWEL)
+#define NFC_PROTO_MIFARE_MASK (1 << NFC_PROTO_MIFARE)
+#define NFC_PROTO_FELICA_MASK (1 << NFC_PROTO_FELICA)
+#define NFC_PROTO_ISO14443_MASK (1 << NFC_PROTO_ISO14443)
+#define NFC_PROTO_NFC_DEP_MASK (1 << NFC_PROTO_NFC_DEP)
+
+struct sockaddr_nfc {
+ sa_family_t sa_family;
+ __u32 dev_idx;
+ __u32 target_idx;
+ __u32 nfc_protocol;
+};
+
+/* NFC socket protocols */
+#define NFC_SOCKPROTO_RAW 0
+#define NFC_SOCKPROTO_MAX 1
+
+#endif /*__LINUX_NFC_H */
* more background information, see
* http://wireless.kernel.org/en/users/Documentation/WoWLAN.
*
+ * @NL80211_CMD_SET_REKEY_OFFLOAD: This command is used give the driver
+ * the necessary information for supporting GTK rekey offload. This
+ * feature is typically used during WoWLAN. The configuration data
+ * is contained in %NL80211_ATTR_REKEY_DATA (which is nested and
+ * contains the data in sub-attributes). After rekeying happened,
+ * this command may also be sent by the driver as an MLME event to
+ * inform userspace of the new replay counter.
+ *
* @NL80211_CMD_MAX: highest used command number
* @__NL80211_CMD_AFTER_LAST: internal use
*/
NL80211_CMD_SCHED_SCAN_RESULTS,
NL80211_CMD_SCHED_SCAN_STOPPED,
+ NL80211_CMD_SET_REKEY_OFFLOAD,
+
/* add new commands above here */
/* used to define NL80211_CMD_MAX below */
* are managed in software: interfaces of these types aren't subject to
* any restrictions in their number or combinations.
*
+ * @%NL80211_ATTR_REKEY_DATA: nested attribute containing the information
+ * necessary for GTK rekeying in the device, see &enum nl80211_rekey_data.
+ *
* @NL80211_ATTR_MAX: highest attribute number currently defined
* @__NL80211_ATTR_AFTER_LAST: internal use
*/
NL80211_ATTR_INTERFACE_COMBINATIONS,
NL80211_ATTR_SOFTWARE_IFTYPES,
+ NL80211_ATTR_REKEY_DATA,
+
/* add attributes here, update the policy in nl80211.c */
__NL80211_ATTR_AFTER_LAST,
MAX_NL80211_PLINK_STATES = NUM_NL80211_PLINK_STATES - 1
};
+#define NL80211_KCK_LEN 16
+#define NL80211_KEK_LEN 16
+#define NL80211_REPLAY_CTR_LEN 8
+
+/**
+ * enum nl80211_rekey_data - attributes for GTK rekey offload
+ * @__NL80211_REKEY_DATA_INVALID: invalid number for nested attributes
+ * @NL80211_REKEY_DATA_KEK: key encryption key (binary)
+ * @NL80211_REKEY_DATA_KCK: key confirmation key (binary)
+ * @NL80211_REKEY_DATA_REPLAY_CTR: replay counter (binary)
+ * @NUM_NL80211_REKEY_DATA: number of rekey attributes (internal)
+ * @MAX_NL80211_REKEY_DATA: highest rekey attribute (internal)
+ */
+enum nl80211_rekey_data {
+ __NL80211_REKEY_DATA_INVALID,
+ NL80211_REKEY_DATA_KEK,
+ NL80211_REKEY_DATA_KCK,
+ NL80211_REKEY_DATA_REPLAY_CTR,
+
+ /* keep last */
+ NUM_NL80211_REKEY_DATA,
+ MAX_NL80211_REKEY_DATA = NUM_NL80211_REKEY_DATA - 1
+};
+
#endif /* __LINUX_NL80211_H */
#define AF_IEEE802154 36 /* IEEE802154 sockets */
#define AF_CAIF 37 /* CAIF sockets */
#define AF_ALG 38 /* Algorithm sockets */
-#define AF_MAX 39 /* For now.. */
+#define AF_NFC 39 /* NFC sockets */
+#define AF_MAX 40 /* For now.. */
/* Protocol families, same as address families. */
#define PF_UNSPEC AF_UNSPEC
#define PF_IEEE802154 AF_IEEE802154
#define PF_CAIF AF_CAIF
#define PF_ALG AF_ALG
+#define PF_NFC AF_NFC
#define PF_MAX AF_MAX
/* Maximum queue length specifiable by listen. */
struct ssb_boardinfo {
u16 vendor;
u16 type;
- u16 rev;
+ u8 rev;
};
int n_patterns;
};
+/**
+ * struct cfg80211_gtk_rekey_data - rekey data
+ * @kek: key encryption key
+ * @kck: key confirmation key
+ * @replay_ctr: replay counter
+ */
+struct cfg80211_gtk_rekey_data {
+ u8 kek[NL80211_KEK_LEN];
+ u8 kck[NL80211_KCK_LEN];
+ u8 replay_ctr[NL80211_REPLAY_CTR_LEN];
+};
+
/**
* struct cfg80211_ops - backend description for wireless configuration
*
*
* @set_default_mgmt_key: set the default management frame key on an interface
*
+ * @set_rekey_data: give the data necessary for GTK rekeying to the driver
+ *
* @add_beacon: Add a beacon with given parameters, @head, @interval
* and @dtim_period will be valid, @tail is optional.
* @set_beacon: Change the beacon parameters for an access point mode
struct net_device *dev,
struct cfg80211_sched_scan_request *request);
int (*sched_scan_stop)(struct wiphy *wiphy, struct net_device *dev);
+
+ int (*set_rekey_data)(struct wiphy *wiphy, struct net_device *dev,
+ struct cfg80211_gtk_rekey_data *data);
};
/*
void cfg80211_cqm_pktloss_notify(struct net_device *dev,
const u8 *peer, u32 num_packets, gfp_t gfp);
+/**
+ * cfg80211_gtk_rekey_notify - notify userspace about driver rekeying
+ * @dev: network device
+ * @bssid: BSSID of AP (to avoid races)
+ * @replay_ctr: new replay counter
+ */
+void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
+ const u8 *replay_ctr, gfp_t gfp);
+
/* Logging, debugging and troubleshooting/diagnostic helpers. */
/* wiphy_printk helpers, similar to dev_printk */
* ask the device to suspend. This is only invoked when WoWLAN is
* configured, otherwise the device is deconfigured completely and
* reconfigured at resume time.
+ * The driver may also impose special conditions under which it
+ * wants to use the "normal" suspend (deconfigure), say if it only
+ * supports WoWLAN when the device is associated. In this case, it
+ * must return 1 from this function.
*
* @resume: If WoWLAN was configured, this indicates that mac80211 is
* now resuming its operation, after this the device must be fully
* which set IEEE80211_KEY_FLAG_TKIP_REQ_RX_P1_KEY.
* The callback must be atomic.
*
+ * @set_rekey_data: If the device supports GTK rekeying, for example while the
+ * host is suspended, it can assign this callback to retrieve the data
+ * necessary to do GTK rekeying, this is the KEK, KCK and replay counter.
+ * After rekeying was done it should (for example during resume) notify
+ * userspace of the new replay counter using ieee80211_gtk_rekey_notify().
+ *
* @hw_scan: Ask the hardware to service the scan request, no need to start
* the scan state machine in stack. The scan must honour the channel
* configuration done by the regulatory agent in the wiphy's
struct ieee80211_key_conf *conf,
struct ieee80211_sta *sta,
u32 iv32, u16 *phase1key);
+ void (*set_rekey_data)(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct cfg80211_gtk_rekey_data *data);
int (*hw_scan)(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
struct cfg80211_scan_request *req);
void (*cancel_hw_scan)(struct ieee80211_hw *hw,
void ieee80211_get_tkip_key(struct ieee80211_key_conf *keyconf,
struct sk_buff *skb,
enum ieee80211_tkip_key_type type, u8 *key);
+
+/**
+ * ieee80211_gtk_rekey_notify - notify userspace supplicant of rekeying
+ * @vif: virtual interface the rekeying was done on
+ * @bssid: The BSSID of the AP, for checking association
+ * @replay_ctr: the new replay counter after GTK rekeying
+ * @gfp: allocation flags
+ */
+void ieee80211_gtk_rekey_notify(struct ieee80211_vif *vif, const u8 *bssid,
+ const u8 *replay_ctr, gfp_t gfp);
+
/**
* ieee80211_wake_queue - wake specific queue
* @hw: pointer as obtained from ieee80211_alloc_hw().
void ieee80211_sta_block_awake(struct ieee80211_hw *hw,
struct ieee80211_sta *pubsta, bool block);
+/**
+ * ieee80211_iter_keys - iterate keys programmed into the device
+ * @hw: pointer obtained from ieee80211_alloc_hw()
+ * @vif: virtual interface to iterate, may be %NULL for all
+ * @iter: iterator function that will be called for each key
+ * @iter_data: custom data to pass to the iterator function
+ *
+ * This function can be used to iterate all the keys known to
+ * mac80211, even those that weren't previously programmed into
+ * the device. This is intended for use in WoWLAN if the device
+ * needs reprogramming of the keys during suspend. Note that due
+ * to locking reasons, it is also only safe to call this at few
+ * spots since it must hold the RTNL and be able to sleep.
+ */
+void ieee80211_iter_keys(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ void (*iter)(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta,
+ struct ieee80211_key_conf *key,
+ void *data),
+ void *iter_data);
+
/**
* ieee80211_ap_probereq_get - retrieve a Probe Request template
* @hw: pointer obtained from ieee80211_alloc_hw().
--- /dev/null
+/*
+ * Copyright (C) 2011 Instituto Nokia de Tecnologia
+ *
+ * Authors:
+ * Lauro Ramos Venancio <lauro.venancio@openbossa.org>
+ * Aloisio Almeida Jr <aloisio.almeida@openbossa.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the
+ * Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __NET_NFC_H
+#define __NET_NFC_H
+
+#include <linux/device.h>
+#include <linux/skbuff.h>
+
+#define nfc_dev_info(dev, fmt, arg...) dev_info((dev), "NFC: " fmt "\n", ## arg)
+#define nfc_dev_err(dev, fmt, arg...) dev_err((dev), "NFC: " fmt "\n", ## arg)
+#define nfc_dev_dbg(dev, fmt, arg...) dev_dbg((dev), fmt "\n", ## arg)
+
+struct nfc_dev;
+
+/**
+ * data_exchange_cb_t - Definition of nfc_data_exchange callback
+ *
+ * @context: nfc_data_exchange cb_context parameter
+ * @skb: response data
+ * @err: If an error has occurred during data exchange, it is the
+ * error number. Zero means no error.
+ *
+ * When a rx or tx package is lost or corrupted or the target gets out
+ * of the operating field, err is -EIO.
+ */
+typedef void (*data_exchange_cb_t)(void *context, struct sk_buff *skb,
+ int err);
+
+struct nfc_ops {
+ int (*start_poll)(struct nfc_dev *dev, u32 protocols);
+ void (*stop_poll)(struct nfc_dev *dev);
+ int (*activate_target)(struct nfc_dev *dev, u32 target_idx,
+ u32 protocol);
+ void (*deactivate_target)(struct nfc_dev *dev, u32 target_idx);
+ int (*data_exchange)(struct nfc_dev *dev, u32 target_idx,
+ struct sk_buff *skb, data_exchange_cb_t cb,
+ void *cb_context);
+};
+
+struct nfc_target {
+ u32 idx;
+ u32 supported_protocols;
+ u16 sens_res;
+ u8 sel_res;
+};
+
+struct nfc_genl_data {
+ u32 poll_req_pid;
+ struct mutex genl_data_mutex;
+};
+
+struct nfc_dev {
+ unsigned idx;
+ unsigned target_idx;
+ struct nfc_target *targets;
+ int n_targets;
+ int targets_generation;
+ spinlock_t targets_lock;
+ struct device dev;
+ bool polling;
+ struct nfc_genl_data genl_data;
+ u32 supported_protocols;
+
+ struct nfc_ops *ops;
+};
+#define to_nfc_dev(_dev) container_of(_dev, struct nfc_dev, dev)
+
+extern struct class nfc_class;
+
+struct nfc_dev *nfc_allocate_device(struct nfc_ops *ops,
+ u32 supported_protocols);
+
+/**
+ * nfc_free_device - free nfc device
+ *
+ * @dev: The nfc device to free
+ */
+static inline void nfc_free_device(struct nfc_dev *dev)
+{
+ put_device(&dev->dev);
+}
+
+int nfc_register_device(struct nfc_dev *dev);
+
+void nfc_unregister_device(struct nfc_dev *dev);
+
+/**
+ * nfc_set_parent_dev - set the parent device
+ *
+ * @nfc_dev: The nfc device whose parent is being set
+ * @dev: The parent device
+ */
+static inline void nfc_set_parent_dev(struct nfc_dev *nfc_dev,
+ struct device *dev)
+{
+ nfc_dev->dev.parent = dev;
+}
+
+/**
+ * nfc_set_drvdata - set driver specifc data
+ *
+ * @dev: The nfc device
+ * @data: Pointer to driver specifc data
+ */
+static inline void nfc_set_drvdata(struct nfc_dev *dev, void *data)
+{
+ dev_set_drvdata(&dev->dev, data);
+}
+
+/**
+ * nfc_get_drvdata - get driver specifc data
+ *
+ * @dev: The nfc device
+ */
+static inline void *nfc_get_drvdata(struct nfc_dev *dev)
+{
+ return dev_get_drvdata(&dev->dev);
+}
+
+/**
+ * nfc_device_name - get the nfc device name
+ *
+ * @dev: The nfc device whose name to return
+ */
+static inline const char *nfc_device_name(struct nfc_dev *dev)
+{
+ return dev_name(&dev->dev);
+}
+
+struct sk_buff *nfc_alloc_skb(unsigned int size, gfp_t gfp);
+
+int nfc_targets_found(struct nfc_dev *dev, struct nfc_target *targets,
+ int ntargets);
+
+#endif /* __NET_NFC_H */
source "net/9p/Kconfig"
source "net/caif/Kconfig"
source "net/ceph/Kconfig"
+source "net/nfc/Kconfig"
endif # if NET
obj-$(CONFIG_DNS_RESOLVER) += dns_resolver/
obj-$(CONFIG_CEPH_LIB) += ceph/
obj-$(CONFIG_BATMAN_ADV) += batman-adv/
+obj-$(CONFIG_NFC) += nfc/
"sk_lock-AF_TIPC" , "sk_lock-AF_BLUETOOTH", "sk_lock-IUCV" ,
"sk_lock-AF_RXRPC" , "sk_lock-AF_ISDN" , "sk_lock-AF_PHONET" ,
"sk_lock-AF_IEEE802154", "sk_lock-AF_CAIF" , "sk_lock-AF_ALG" ,
- "sk_lock-AF_MAX"
+ "sk_lock-AF_NFC" , "sk_lock-AF_MAX"
};
static const char *const af_family_slock_key_strings[AF_MAX+1] = {
"slock-AF_UNSPEC", "slock-AF_UNIX" , "slock-AF_INET" ,
"slock-AF_TIPC" , "slock-AF_BLUETOOTH", "slock-AF_IUCV" ,
"slock-AF_RXRPC" , "slock-AF_ISDN" , "slock-AF_PHONET" ,
"slock-AF_IEEE802154", "slock-AF_CAIF" , "slock-AF_ALG" ,
- "slock-AF_MAX"
+ "slock-AF_NFC" , "slock-AF_MAX"
};
static const char *const af_family_clock_key_strings[AF_MAX+1] = {
"clock-AF_UNSPEC", "clock-AF_UNIX" , "clock-AF_INET" ,
"clock-AF_TIPC" , "clock-AF_BLUETOOTH", "clock-AF_IUCV" ,
"clock-AF_RXRPC" , "clock-AF_ISDN" , "clock-AF_PHONET" ,
"clock-AF_IEEE802154", "clock-AF_CAIF" , "clock-AF_ALG" ,
- "clock-AF_MAX"
+ "clock-AF_NFC" , "clock-AF_MAX"
};
/*
drv_get_ringparam(local, tx, tx_max, rx, rx_max);
}
+static int ieee80211_set_rekey_data(struct wiphy *wiphy,
+ struct net_device *dev,
+ struct cfg80211_gtk_rekey_data *data)
+{
+ struct ieee80211_local *local = wiphy_priv(wiphy);
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+ if (!local->ops->set_rekey_data)
+ return -EOPNOTSUPP;
+
+ drv_set_rekey_data(local, sdata, data);
+
+ return 0;
+}
+
struct cfg80211_ops mac80211_config_ops = {
.add_virtual_intf = ieee80211_add_iface,
.del_virtual_intf = ieee80211_del_iface,
.get_antenna = ieee80211_get_antenna,
.set_ringparam = ieee80211_set_ringparam,
.get_ringparam = ieee80211_get_ringparam,
+ .set_rekey_data = ieee80211_set_rekey_data,
};
return ret;
}
+static inline void drv_set_rekey_data(struct ieee80211_local *local,
+ struct ieee80211_sub_if_data *sdata,
+ struct cfg80211_gtk_rekey_data *data)
+{
+ trace_drv_set_rekey_data(local, sdata, data);
+ if (local->ops->set_rekey_data)
+ local->ops->set_rekey_data(&local->hw, &sdata->vif, data);
+ trace_drv_return_void(local);
+}
+
#endif /* __MAC80211_DRIVER_OPS */
)
);
+TRACE_EVENT(drv_set_rekey_data,
+ TP_PROTO(struct ieee80211_local *local,
+ struct ieee80211_sub_if_data *sdata,
+ struct cfg80211_gtk_rekey_data *data),
+
+ TP_ARGS(local, sdata, data),
+
+ TP_STRUCT__entry(
+ LOCAL_ENTRY
+ VIF_ENTRY
+ __array(u8, kek, NL80211_KEK_LEN)
+ __array(u8, kck, NL80211_KCK_LEN)
+ __array(u8, replay_ctr, NL80211_REPLAY_CTR_LEN)
+ ),
+
+ TP_fast_assign(
+ LOCAL_ASSIGN;
+ VIF_ASSIGN;
+ memcpy(__entry->kek, data->kek, NL80211_KEK_LEN);
+ memcpy(__entry->kck, data->kck, NL80211_KCK_LEN);
+ memcpy(__entry->replay_ctr, data->replay_ctr,
+ NL80211_REPLAY_CTR_LEN);
+ ),
+
+ TP_printk(LOCAL_PR_FMT VIF_PR_FMT,
+ LOCAL_PR_ARG, VIF_PR_ARG)
+);
+
/*
* Tracing for API calls that drivers call.
*/
TP_ARGS(local)
);
+TRACE_EVENT(api_gtk_rekey_notify,
+ TP_PROTO(struct ieee80211_sub_if_data *sdata,
+ const u8 *bssid, const u8 *replay_ctr),
+
+ TP_ARGS(sdata, bssid, replay_ctr),
+
+ TP_STRUCT__entry(
+ VIF_ENTRY
+ __array(u8, bssid, ETH_ALEN)
+ __array(u8, replay_ctr, NL80211_REPLAY_CTR_LEN)
+ ),
+
+ TP_fast_assign(
+ VIF_ASSIGN;
+ memcpy(__entry->bssid, bssid, ETH_ALEN);
+ memcpy(__entry->replay_ctr, replay_ctr, NL80211_REPLAY_CTR_LEN);
+ ),
+
+ TP_printk(VIF_PR_FMT, VIF_PR_ARG)
+);
+
/*
* Tracing for internal functions
* (which may also be called in response to driver calls)
/* keys */
struct list_head key_list;
+ /* count for keys needing tailroom space allocation */
+ int crypto_tx_tailroom_needed_cnt;
+
struct net_device *dev;
struct ieee80211_local *local;
return NULL;
}
+static void increment_tailroom_need_count(struct ieee80211_sub_if_data *sdata)
+{
+ /*
+ * When this count is zero, SKB resizing for allocating tailroom
+ * for IV or MMIC is skipped. But, this check has created two race
+ * cases in xmit path while transiting from zero count to one:
+ *
+ * 1. SKB resize was skipped because no key was added but just before
+ * the xmit key is added and SW encryption kicks off.
+ *
+ * 2. SKB resize was skipped because all the keys were hw planted but
+ * just before xmit one of the key is deleted and SW encryption kicks
+ * off.
+ *
+ * In both the above case SW encryption will find not enough space for
+ * tailroom and exits with WARN_ON. (See WARN_ONs at wpa.c)
+ *
+ * Solution has been explained at
+ * http://mid.gmane.org/1308590980.4322.19.camel@jlt3.sipsolutions.net
+ */
+
+ if (!sdata->crypto_tx_tailroom_needed_cnt++) {
+ /*
+ * Flush all XMIT packets currently using HW encryption or no
+ * encryption at all if the count transition is from 0 -> 1.
+ */
+ synchronize_net();
+ }
+}
+
static int ieee80211_key_enable_hw_accel(struct ieee80211_key *key)
{
struct ieee80211_sub_if_data *sdata;
if (!ret) {
key->flags |= KEY_FLAG_UPLOADED_TO_HARDWARE;
+
+ if (!((key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC) ||
+ (key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)))
+ sdata->crypto_tx_tailroom_needed_cnt--;
+
return 0;
}
sta = get_sta_for_key(key);
sdata = key->sdata;
+ if (!((key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC) ||
+ (key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)))
+ increment_tailroom_need_count(sdata);
+
if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
sdata = container_of(sdata->bss,
struct ieee80211_sub_if_data,
ieee80211_aes_key_free(key->u.ccmp.tfm);
if (key->conf.cipher == WLAN_CIPHER_SUITE_AES_CMAC)
ieee80211_aes_cmac_key_free(key->u.aes_cmac.tfm);
- if (key->local)
+ if (key->local) {
ieee80211_debugfs_key_remove(key);
+ key->sdata->crypto_tx_tailroom_needed_cnt--;
+ }
kfree(key);
}
else
old_key = key_mtx_dereference(sdata->local, sdata->keys[idx]);
+ increment_tailroom_need_count(sdata);
+
__ieee80211_key_replace(sdata, sta, pairwise, old_key, key);
__ieee80211_key_destroy(old_key);
mutex_lock(&sdata->local->key_mtx);
- list_for_each_entry(key, &sdata->key_list, list)
+ sdata->crypto_tx_tailroom_needed_cnt = 0;
+
+ list_for_each_entry(key, &sdata->key_list, list) {
+ increment_tailroom_need_count(sdata);
ieee80211_key_enable_hw_accel(key);
+ }
mutex_unlock(&sdata->local->key_mtx);
}
+void ieee80211_iter_keys(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ void (*iter)(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta,
+ struct ieee80211_key_conf *key,
+ void *data),
+ void *iter_data)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ struct ieee80211_key *key;
+ struct ieee80211_sub_if_data *sdata;
+
+ ASSERT_RTNL();
+
+ mutex_lock(&local->key_mtx);
+ if (vif) {
+ sdata = vif_to_sdata(vif);
+ list_for_each_entry(key, &sdata->key_list, list)
+ iter(hw, &sdata->vif,
+ key->sta ? &key->sta->sta : NULL,
+ &key->conf, iter_data);
+ } else {
+ list_for_each_entry(sdata, &local->interfaces, list)
+ list_for_each_entry(key, &sdata->key_list, list)
+ iter(hw, &sdata->vif,
+ key->sta ? &key->sta->sta : NULL,
+ &key->conf, iter_data);
+ }
+ mutex_unlock(&local->key_mtx);
+}
+EXPORT_SYMBOL(ieee80211_iter_keys);
+
void ieee80211_disable_keys(struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_key *key;
mutex_unlock(&sdata->local->key_mtx);
}
+
+
+void ieee80211_gtk_rekey_notify(struct ieee80211_vif *vif, const u8 *bssid,
+ const u8 *replay_ctr, gfp_t gfp)
+{
+ struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+
+ trace_api_gtk_rekey_notify(sdata, bssid, replay_ctr);
+
+ cfg80211_gtk_rekey_notify(sdata->dev, bssid, replay_ctr, gfp);
+}
+EXPORT_SYMBOL_GPL(ieee80211_gtk_rekey_notify);
mpath = node->mpath;
if (mpath->sdata == sdata &&
memcmp(addr, mpath->dst, ETH_ALEN) == 0) {
- spin_lock_bh(&mpath->state_lock);
+ spin_lock(&mpath->state_lock);
mpath->flags |= MESH_PATH_RESOLVING;
hlist_del_rcu(&node->list);
call_rcu(&node->rcu, mesh_path_node_reclaim);
atomic_dec(&tbl->entries);
- spin_unlock_bh(&mpath->state_lock);
+ spin_unlock(&mpath->state_lock);
goto enddel;
}
}
container_of(work, struct ieee80211_local,
dynamic_ps_enable_work);
struct ieee80211_sub_if_data *sdata = local->ps_sdata;
- struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+ struct ieee80211_if_managed *ifmgd;
unsigned long flags;
int q;
if (!sdata)
return;
+ ifmgd = &sdata->u.mgd;
+
if (local->hw.conf.flags & IEEE80211_CONF_PS)
return;
local->wowlan = wowlan && local->open_count;
if (local->wowlan) {
int err = drv_suspend(local, wowlan);
- if (err) {
+ if (err < 0) {
local->quiescing = false;
return err;
+ } else if (err > 0) {
+ WARN_ON(err != 1);
+ local->wowlan = false;
+ } else {
+ list_for_each_entry(sdata, &local->interfaces, list) {
+ cancel_work_sync(&sdata->work);
+ ieee80211_quiesce(sdata);
+ }
+ goto suspend;
}
- list_for_each_entry(sdata, &local->interfaces, list) {
- cancel_work_sync(&sdata->work);
- ieee80211_quiesce(sdata);
- }
- goto suspend;
}
/* disable keys */
/* device xmit handlers */
-static int ieee80211_skb_resize(struct ieee80211_local *local,
+static int ieee80211_skb_resize(struct ieee80211_sub_if_data *sdata,
struct sk_buff *skb,
int head_need, bool may_encrypt)
{
+ struct ieee80211_local *local = sdata->local;
int tail_need = 0;
- /*
- * This could be optimised, devices that do full hardware
- * crypto (including TKIP MMIC) need no tailroom... But we
- * have no drivers for such devices currently.
- */
- if (may_encrypt) {
+ if (may_encrypt && sdata->crypto_tx_tailroom_needed_cnt) {
tail_need = IEEE80211_ENCRYPT_TAILROOM;
tail_need -= skb_tailroom(skb);
tail_need = max_t(int, tail_need, 0);
headroom -= skb_headroom(skb);
headroom = max_t(int, 0, headroom);
- if (ieee80211_skb_resize(local, skb, headroom, may_encrypt)) {
+ if (ieee80211_skb_resize(sdata, skb, headroom, may_encrypt)) {
dev_kfree_skb(skb);
rcu_read_unlock();
return;
head_need += IEEE80211_ENCRYPT_HEADROOM;
head_need += local->tx_headroom;
head_need = max_t(int, 0, head_need);
- if (ieee80211_skb_resize(local, skb, head_need, true))
+ if (ieee80211_skb_resize(sdata, skb, head_need, true))
goto fail;
}
--- /dev/null
+#
+# NFC sybsystem configuration
+#
+
+menuconfig NFC
+ depends on NET && EXPERIMENTAL
+ tristate "NFC subsystem support (EXPERIMENTAL)"
+ default n
+ help
+ Say Y here if you want to build support for NFC (Near field
+ communication) devices.
+
+ To compile this support as a module, choose M here: the module will
+ be called nfc.
+
+source "drivers/nfc/Kconfig"
--- /dev/null
+#
+# Makefile for the Linux NFC subsystem.
+#
+
+obj-$(CONFIG_NFC) += nfc.o
+
+nfc-objs := core.o netlink.o af_nfc.o rawsock.o
--- /dev/null
+/*
+ * Copyright (C) 2011 Instituto Nokia de Tecnologia
+ *
+ * Authors:
+ * Aloisio Almeida Jr <aloisio.almeida@openbossa.org>
+ * Lauro Ramos Venancio <lauro.venancio@openbossa.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the
+ * Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <linux/nfc.h>
+
+#include "nfc.h"
+
+static DEFINE_RWLOCK(proto_tab_lock);
+static const struct nfc_protocol *proto_tab[NFC_SOCKPROTO_MAX];
+
+static int nfc_sock_create(struct net *net, struct socket *sock, int proto,
+ int kern)
+{
+ int rc = -EPROTONOSUPPORT;
+
+ if (net != &init_net)
+ return -EAFNOSUPPORT;
+
+ if (proto < 0 || proto >= NFC_SOCKPROTO_MAX)
+ return -EINVAL;
+
+ read_lock(&proto_tab_lock);
+ if (proto_tab[proto] && try_module_get(proto_tab[proto]->owner)) {
+ rc = proto_tab[proto]->create(net, sock, proto_tab[proto]);
+ module_put(proto_tab[proto]->owner);
+ }
+ read_unlock(&proto_tab_lock);
+
+ return rc;
+}
+
+static struct net_proto_family nfc_sock_family_ops = {
+ .owner = THIS_MODULE,
+ .family = PF_NFC,
+ .create = nfc_sock_create,
+};
+
+int nfc_proto_register(const struct nfc_protocol *nfc_proto)
+{
+ int rc;
+
+ if (nfc_proto->id < 0 || nfc_proto->id >= NFC_SOCKPROTO_MAX)
+ return -EINVAL;
+
+ rc = proto_register(nfc_proto->proto, 0);
+ if (rc)
+ return rc;
+
+ write_lock(&proto_tab_lock);
+ if (proto_tab[nfc_proto->id])
+ rc = -EBUSY;
+ else
+ proto_tab[nfc_proto->id] = nfc_proto;
+ write_unlock(&proto_tab_lock);
+
+ return rc;
+}
+EXPORT_SYMBOL(nfc_proto_register);
+
+void nfc_proto_unregister(const struct nfc_protocol *nfc_proto)
+{
+ write_lock(&proto_tab_lock);
+ proto_tab[nfc_proto->id] = NULL;
+ write_unlock(&proto_tab_lock);
+
+ proto_unregister(nfc_proto->proto);
+}
+EXPORT_SYMBOL(nfc_proto_unregister);
+
+int __init af_nfc_init(void)
+{
+ return sock_register(&nfc_sock_family_ops);
+}
+
+void af_nfc_exit(void)
+{
+ sock_unregister(PF_NFC);
+}
--- /dev/null
+/*
+ * Copyright (C) 2011 Instituto Nokia de Tecnologia
+ *
+ * Authors:
+ * Lauro Ramos Venancio <lauro.venancio@openbossa.org>
+ * Aloisio Almeida Jr <aloisio.almeida@openbossa.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the
+ * Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+
+#include "nfc.h"
+
+#define VERSION "0.1"
+
+int nfc_devlist_generation;
+DEFINE_MUTEX(nfc_devlist_mutex);
+
+int nfc_printk(const char *level, const char *format, ...)
+{
+ struct va_format vaf;
+ va_list args;
+ int r;
+
+ va_start(args, format);
+
+ vaf.fmt = format;
+ vaf.va = &args;
+
+ r = printk("%sNFC: %pV\n", level, &vaf);
+
+ va_end(args);
+
+ return r;
+}
+EXPORT_SYMBOL(nfc_printk);
+
+/**
+ * nfc_start_poll - start polling for nfc targets
+ *
+ * @dev: The nfc device that must start polling
+ * @protocols: bitset of nfc protocols that must be used for polling
+ *
+ * The device remains polling for targets until a target is found or
+ * the nfc_stop_poll function is called.
+ */
+int nfc_start_poll(struct nfc_dev *dev, u32 protocols)
+{
+ int rc;
+
+ nfc_dbg("dev_name=%s protocols=0x%x", dev_name(&dev->dev), protocols);
+
+ if (!protocols)
+ return -EINVAL;
+
+ device_lock(&dev->dev);
+
+ if (!device_is_registered(&dev->dev)) {
+ rc = -ENODEV;
+ goto error;
+ }
+
+ if (dev->polling) {
+ rc = -EBUSY;
+ goto error;
+ }
+
+ rc = dev->ops->start_poll(dev, protocols);
+ if (!rc)
+ dev->polling = true;
+
+error:
+ device_unlock(&dev->dev);
+ return rc;
+}
+
+/**
+ * nfc_stop_poll - stop polling for nfc targets
+ *
+ * @dev: The nfc device that must stop polling
+ */
+int nfc_stop_poll(struct nfc_dev *dev)
+{
+ int rc = 0;
+
+ nfc_dbg("dev_name=%s", dev_name(&dev->dev));
+
+ device_lock(&dev->dev);
+
+ if (!device_is_registered(&dev->dev)) {
+ rc = -ENODEV;
+ goto error;
+ }
+
+ if (!dev->polling) {
+ rc = -EINVAL;
+ goto error;
+ }
+
+ dev->ops->stop_poll(dev);
+ dev->polling = false;
+
+error:
+ device_unlock(&dev->dev);
+ return rc;
+}
+
+/**
+ * nfc_activate_target - prepare the target for data exchange
+ *
+ * @dev: The nfc device that found the target
+ * @target_idx: index of the target that must be activated
+ * @protocol: nfc protocol that will be used for data exchange
+ */
+int nfc_activate_target(struct nfc_dev *dev, u32 target_idx, u32 protocol)
+{
+ int rc;
+
+ nfc_dbg("dev_name=%s target_idx=%u protocol=%u", dev_name(&dev->dev),
+ target_idx, protocol);
+
+ device_lock(&dev->dev);
+
+ if (!device_is_registered(&dev->dev)) {
+ rc = -ENODEV;
+ goto error;
+ }
+
+ rc = dev->ops->activate_target(dev, target_idx, protocol);
+
+error:
+ device_unlock(&dev->dev);
+ return rc;
+}
+
+/**
+ * nfc_deactivate_target - deactivate a nfc target
+ *
+ * @dev: The nfc device that found the target
+ * @target_idx: index of the target that must be deactivated
+ */
+int nfc_deactivate_target(struct nfc_dev *dev, u32 target_idx)
+{
+ int rc = 0;
+
+ nfc_dbg("dev_name=%s target_idx=%u", dev_name(&dev->dev), target_idx);
+
+ device_lock(&dev->dev);
+
+ if (!device_is_registered(&dev->dev)) {
+ rc = -ENODEV;
+ goto error;
+ }
+
+ dev->ops->deactivate_target(dev, target_idx);
+
+error:
+ device_unlock(&dev->dev);
+ return rc;
+}
+
+/**
+ * nfc_data_exchange - transceive data
+ *
+ * @dev: The nfc device that found the target
+ * @target_idx: index of the target
+ * @skb: data to be sent
+ * @cb: callback called when the response is received
+ * @cb_context: parameter for the callback function
+ *
+ * The user must wait for the callback before calling this function again.
+ */
+int nfc_data_exchange(struct nfc_dev *dev, u32 target_idx,
+ struct sk_buff *skb,
+ data_exchange_cb_t cb,
+ void *cb_context)
+{
+ int rc;
+
+ nfc_dbg("dev_name=%s target_idx=%u skb->len=%u", dev_name(&dev->dev),
+ target_idx, skb->len);
+
+ device_lock(&dev->dev);
+
+ if (!device_is_registered(&dev->dev)) {
+ rc = -ENODEV;
+ kfree_skb(skb);
+ goto error;
+ }
+
+ rc = dev->ops->data_exchange(dev, target_idx, skb, cb, cb_context);
+
+error:
+ device_unlock(&dev->dev);
+ return rc;
+}
+
+/**
+ * nfc_alloc_skb - allocate a skb for data exchange responses
+ *
+ * @size: size to allocate
+ * @gfp: gfp flags
+ */
+struct sk_buff *nfc_alloc_skb(unsigned int size, gfp_t gfp)
+{
+ struct sk_buff *skb;
+ unsigned int total_size;
+
+ total_size = size + 1;
+ skb = alloc_skb(total_size, gfp);
+
+ if (skb)
+ skb_reserve(skb, 1);
+
+ return skb;
+}
+EXPORT_SYMBOL(nfc_alloc_skb);
+
+/**
+ * nfc_targets_found - inform that targets were found
+ *
+ * @dev: The nfc device that found the targets
+ * @targets: array of nfc targets found
+ * @ntargets: targets array size
+ *
+ * The device driver must call this function when one or many nfc targets
+ * are found. After calling this function, the device driver must stop
+ * polling for targets.
+ */
+int nfc_targets_found(struct nfc_dev *dev, struct nfc_target *targets,
+ int n_targets)
+{
+ int i;
+
+ nfc_dbg("dev_name=%s n_targets=%d", dev_name(&dev->dev), n_targets);
+
+ dev->polling = false;
+
+ for (i = 0; i < n_targets; i++)
+ targets[i].idx = dev->target_idx++;
+
+ spin_lock_bh(&dev->targets_lock);
+
+ dev->targets_generation++;
+
+ kfree(dev->targets);
+ dev->targets = kmemdup(targets, n_targets * sizeof(struct nfc_target),
+ GFP_ATOMIC);
+
+ if (!dev->targets) {
+ dev->n_targets = 0;
+ spin_unlock_bh(&dev->targets_lock);
+ return -ENOMEM;
+ }
+
+ dev->n_targets = n_targets;
+ spin_unlock_bh(&dev->targets_lock);
+
+ nfc_genl_targets_found(dev);
+
+ return 0;
+}
+EXPORT_SYMBOL(nfc_targets_found);
+
+static void nfc_release(struct device *d)
+{
+ struct nfc_dev *dev = to_nfc_dev(d);
+
+ nfc_dbg("dev_name=%s", dev_name(&dev->dev));
+
+ nfc_genl_data_exit(&dev->genl_data);
+ kfree(dev->targets);
+ kfree(dev);
+}
+
+struct class nfc_class = {
+ .name = "nfc",
+ .dev_release = nfc_release,
+};
+EXPORT_SYMBOL(nfc_class);
+
+static int match_idx(struct device *d, void *data)
+{
+ struct nfc_dev *dev = to_nfc_dev(d);
+ unsigned *idx = data;
+
+ return dev->idx == *idx;
+}
+
+struct nfc_dev *nfc_get_device(unsigned idx)
+{
+ struct device *d;
+
+ d = class_find_device(&nfc_class, NULL, &idx, match_idx);
+ if (!d)
+ return NULL;
+
+ return to_nfc_dev(d);
+}
+
+/**
+ * nfc_allocate_device - allocate a new nfc device
+ *
+ * @ops: device operations
+ * @supported_protocols: NFC protocols supported by the device
+ */
+struct nfc_dev *nfc_allocate_device(struct nfc_ops *ops,
+ u32 supported_protocols)
+{
+ static atomic_t dev_no = ATOMIC_INIT(0);
+ struct nfc_dev *dev;
+
+ if (!ops->start_poll || !ops->stop_poll || !ops->activate_target ||
+ !ops->deactivate_target || !ops->data_exchange)
+ return NULL;
+
+ if (!supported_protocols)
+ return NULL;
+
+ dev = kzalloc(sizeof(struct nfc_dev), GFP_KERNEL);
+ if (!dev)
+ return NULL;
+
+ dev->dev.class = &nfc_class;
+ dev->idx = atomic_inc_return(&dev_no) - 1;
+ dev_set_name(&dev->dev, "nfc%d", dev->idx);
+ device_initialize(&dev->dev);
+
+ dev->ops = ops;
+ dev->supported_protocols = supported_protocols;
+
+ spin_lock_init(&dev->targets_lock);
+ nfc_genl_data_init(&dev->genl_data);
+
+ /* first generation must not be 0 */
+ dev->targets_generation = 1;
+
+ return dev;
+}
+EXPORT_SYMBOL(nfc_allocate_device);
+
+/**
+ * nfc_register_device - register a nfc device in the nfc subsystem
+ *
+ * @dev: The nfc device to register
+ */
+int nfc_register_device(struct nfc_dev *dev)
+{
+ int rc;
+
+ nfc_dbg("dev_name=%s", dev_name(&dev->dev));
+
+ mutex_lock(&nfc_devlist_mutex);
+ nfc_devlist_generation++;
+ rc = device_add(&dev->dev);
+ mutex_unlock(&nfc_devlist_mutex);
+
+ if (rc < 0)
+ return rc;
+
+ rc = nfc_genl_device_added(dev);
+ if (rc)
+ nfc_dbg("The userspace won't be notified that the device %s was"
+ " added", dev_name(&dev->dev));
+
+
+ return 0;
+}
+EXPORT_SYMBOL(nfc_register_device);
+
+/**
+ * nfc_unregister_device - unregister a nfc device in the nfc subsystem
+ *
+ * @dev: The nfc device to unregister
+ */
+void nfc_unregister_device(struct nfc_dev *dev)
+{
+ int rc;
+
+ nfc_dbg("dev_name=%s", dev_name(&dev->dev));
+
+ mutex_lock(&nfc_devlist_mutex);
+ nfc_devlist_generation++;
+
+ /* lock to avoid unregistering a device while an operation
+ is in progress */
+ device_lock(&dev->dev);
+ device_del(&dev->dev);
+ device_unlock(&dev->dev);
+
+ mutex_unlock(&nfc_devlist_mutex);
+
+ rc = nfc_genl_device_removed(dev);
+ if (rc)
+ nfc_dbg("The userspace won't be notified that the device %s"
+ " was removed", dev_name(&dev->dev));
+
+}
+EXPORT_SYMBOL(nfc_unregister_device);
+
+static int __init nfc_init(void)
+{
+ int rc;
+
+ nfc_info("NFC Core ver %s", VERSION);
+
+ rc = class_register(&nfc_class);
+ if (rc)
+ return rc;
+
+ rc = nfc_genl_init();
+ if (rc)
+ goto err_genl;
+
+ /* the first generation must not be 0 */
+ nfc_devlist_generation = 1;
+
+ rc = rawsock_init();
+ if (rc)
+ goto err_rawsock;
+
+ rc = af_nfc_init();
+ if (rc)
+ goto err_af_nfc;
+
+ return 0;
+
+err_af_nfc:
+ rawsock_exit();
+err_rawsock:
+ nfc_genl_exit();
+err_genl:
+ class_unregister(&nfc_class);
+ return rc;
+}
+
+static void __exit nfc_exit(void)
+{
+ af_nfc_exit();
+ rawsock_exit();
+ nfc_genl_exit();
+ class_unregister(&nfc_class);
+}
+
+subsys_initcall(nfc_init);
+module_exit(nfc_exit);
+
+MODULE_AUTHOR("Lauro Ramos Venancio <lauro.venancio@openbossa.org>");
+MODULE_DESCRIPTION("NFC Core ver " VERSION);
+MODULE_VERSION(VERSION);
+MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * Copyright (C) 2011 Instituto Nokia de Tecnologia
+ *
+ * Authors:
+ * Lauro Ramos Venancio <lauro.venancio@openbossa.org>
+ * Aloisio Almeida Jr <aloisio.almeida@openbossa.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the
+ * Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <net/genetlink.h>
+#include <linux/nfc.h>
+#include <linux/slab.h>
+
+#include "nfc.h"
+
+static struct genl_multicast_group nfc_genl_event_mcgrp = {
+ .name = NFC_GENL_MCAST_EVENT_NAME,
+};
+
+struct genl_family nfc_genl_family = {
+ .id = GENL_ID_GENERATE,
+ .hdrsize = 0,
+ .name = NFC_GENL_NAME,
+ .version = NFC_GENL_VERSION,
+ .maxattr = NFC_ATTR_MAX,
+};
+
+static const struct nla_policy nfc_genl_policy[NFC_ATTR_MAX + 1] = {
+ [NFC_ATTR_DEVICE_INDEX] = { .type = NLA_U32 },
+ [NFC_ATTR_DEVICE_NAME] = { .type = NLA_STRING,
+ .len = NFC_DEVICE_NAME_MAXSIZE },
+ [NFC_ATTR_PROTOCOLS] = { .type = NLA_U32 },
+};
+
+static int nfc_genl_send_target(struct sk_buff *msg, struct nfc_target *target,
+ struct netlink_callback *cb, int flags)
+{
+ void *hdr;
+
+ nfc_dbg("entry");
+
+ hdr = genlmsg_put(msg, NETLINK_CB(cb->skb).pid, cb->nlh->nlmsg_seq,
+ &nfc_genl_family, flags, NFC_CMD_GET_TARGET);
+ if (!hdr)
+ return -EMSGSIZE;
+
+ genl_dump_check_consistent(cb, hdr, &nfc_genl_family);
+
+ NLA_PUT_U32(msg, NFC_ATTR_TARGET_INDEX, target->idx);
+ NLA_PUT_U32(msg, NFC_ATTR_PROTOCOLS,
+ target->supported_protocols);
+ NLA_PUT_U16(msg, NFC_ATTR_TARGET_SENS_RES, target->sens_res);
+ NLA_PUT_U8(msg, NFC_ATTR_TARGET_SEL_RES, target->sel_res);
+
+ return genlmsg_end(msg, hdr);
+
+nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+ return -EMSGSIZE;
+}
+
+static struct nfc_dev *__get_device_from_cb(struct netlink_callback *cb)
+{
+ struct nfc_dev *dev;
+ int rc;
+ u32 idx;
+
+ rc = nlmsg_parse(cb->nlh, GENL_HDRLEN + nfc_genl_family.hdrsize,
+ nfc_genl_family.attrbuf,
+ nfc_genl_family.maxattr,
+ nfc_genl_policy);
+ if (rc < 0)
+ return ERR_PTR(rc);
+
+ if (!nfc_genl_family.attrbuf[NFC_ATTR_DEVICE_INDEX])
+ return ERR_PTR(-EINVAL);
+
+ idx = nla_get_u32(nfc_genl_family.attrbuf[NFC_ATTR_DEVICE_INDEX]);
+
+ dev = nfc_get_device(idx);
+ if (!dev)
+ return ERR_PTR(-ENODEV);
+
+ return dev;
+}
+
+static int nfc_genl_dump_targets(struct sk_buff *skb,
+ struct netlink_callback *cb)
+{
+ int i = cb->args[0];
+ struct nfc_dev *dev = (struct nfc_dev *) cb->args[1];
+ int rc;
+
+ nfc_dbg("entry");
+
+ if (!dev) {
+ dev = __get_device_from_cb(cb);
+ if (IS_ERR(dev))
+ return PTR_ERR(dev);
+
+ cb->args[1] = (long) dev;
+ }
+
+ spin_lock_bh(&dev->targets_lock);
+
+ cb->seq = dev->targets_generation;
+
+ while (i < dev->n_targets) {
+ rc = nfc_genl_send_target(skb, &dev->targets[i], cb,
+ NLM_F_MULTI);
+ if (rc < 0)
+ break;
+
+ i++;
+ }
+
+ spin_unlock_bh(&dev->targets_lock);
+
+ cb->args[0] = i;
+
+ return skb->len;
+}
+
+static int nfc_genl_dump_targets_done(struct netlink_callback *cb)
+{
+ struct nfc_dev *dev = (struct nfc_dev *) cb->args[1];
+
+ nfc_dbg("entry");
+
+ if (dev)
+ nfc_put_device(dev);
+
+ return 0;
+}
+
+int nfc_genl_targets_found(struct nfc_dev *dev)
+{
+ struct sk_buff *msg;
+ void *hdr;
+
+ nfc_dbg("entry");
+
+ dev->genl_data.poll_req_pid = 0;
+
+ msg = nlmsg_new(NLMSG_GOODSIZE, GFP_ATOMIC);
+ if (!msg)
+ return -ENOMEM;
+
+ hdr = genlmsg_put(msg, 0, 0, &nfc_genl_family, 0,
+ NFC_EVENT_TARGETS_FOUND);
+ if (!hdr)
+ goto free_msg;
+
+ NLA_PUT_U32(msg, NFC_ATTR_DEVICE_INDEX, dev->idx);
+
+ genlmsg_end(msg, hdr);
+
+ return genlmsg_multicast(msg, 0, nfc_genl_event_mcgrp.id, GFP_ATOMIC);
+
+nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+free_msg:
+ nlmsg_free(msg);
+ return -EMSGSIZE;
+}
+
+int nfc_genl_device_added(struct nfc_dev *dev)
+{
+ struct sk_buff *msg;
+ void *hdr;
+
+ nfc_dbg("entry");
+
+ msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+ if (!msg)
+ return -ENOMEM;
+
+ hdr = genlmsg_put(msg, 0, 0, &nfc_genl_family, 0,
+ NFC_EVENT_DEVICE_ADDED);
+ if (!hdr)
+ goto free_msg;
+
+ NLA_PUT_STRING(msg, NFC_ATTR_DEVICE_NAME, nfc_device_name(dev));
+ NLA_PUT_U32(msg, NFC_ATTR_DEVICE_INDEX, dev->idx);
+ NLA_PUT_U32(msg, NFC_ATTR_PROTOCOLS, dev->supported_protocols);
+
+ genlmsg_end(msg, hdr);
+
+ genlmsg_multicast(msg, 0, nfc_genl_event_mcgrp.id, GFP_KERNEL);
+
+ return 0;
+
+nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+free_msg:
+ nlmsg_free(msg);
+ return -EMSGSIZE;
+}
+
+int nfc_genl_device_removed(struct nfc_dev *dev)
+{
+ struct sk_buff *msg;
+ void *hdr;
+
+ nfc_dbg("entry");
+
+ msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+ if (!msg)
+ return -ENOMEM;
+
+ hdr = genlmsg_put(msg, 0, 0, &nfc_genl_family, 0,
+ NFC_EVENT_DEVICE_REMOVED);
+ if (!hdr)
+ goto free_msg;
+
+ NLA_PUT_U32(msg, NFC_ATTR_DEVICE_INDEX, dev->idx);
+
+ genlmsg_end(msg, hdr);
+
+ genlmsg_multicast(msg, 0, nfc_genl_event_mcgrp.id, GFP_KERNEL);
+
+ return 0;
+
+nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+free_msg:
+ nlmsg_free(msg);
+ return -EMSGSIZE;
+}
+
+static int nfc_genl_send_device(struct sk_buff *msg, struct nfc_dev *dev,
+ u32 pid, u32 seq,
+ struct netlink_callback *cb,
+ int flags)
+{
+ void *hdr;
+
+ nfc_dbg("entry");
+
+ hdr = genlmsg_put(msg, pid, seq, &nfc_genl_family, flags,
+ NFC_CMD_GET_DEVICE);
+ if (!hdr)
+ return -EMSGSIZE;
+
+ if (cb)
+ genl_dump_check_consistent(cb, hdr, &nfc_genl_family);
+
+ NLA_PUT_STRING(msg, NFC_ATTR_DEVICE_NAME, nfc_device_name(dev));
+ NLA_PUT_U32(msg, NFC_ATTR_DEVICE_INDEX, dev->idx);
+ NLA_PUT_U32(msg, NFC_ATTR_PROTOCOLS, dev->supported_protocols);
+
+ return genlmsg_end(msg, hdr);
+
+nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+ return -EMSGSIZE;
+}
+
+static int nfc_genl_dump_devices(struct sk_buff *skb,
+ struct netlink_callback *cb)
+{
+ struct class_dev_iter *iter = (struct class_dev_iter *) cb->args[0];
+ struct nfc_dev *dev = (struct nfc_dev *) cb->args[1];
+ bool first_call = false;
+
+ nfc_dbg("entry");
+
+ if (!iter) {
+ first_call = true;
+ iter = kmalloc(sizeof(struct class_dev_iter), GFP_KERNEL);
+ if (!iter)
+ return -ENOMEM;
+ cb->args[0] = (long) iter;
+ }
+
+ mutex_lock(&nfc_devlist_mutex);
+
+ cb->seq = nfc_devlist_generation;
+
+ if (first_call) {
+ nfc_device_iter_init(iter);
+ dev = nfc_device_iter_next(iter);
+ }
+
+ while (dev) {
+ int rc;
+
+ rc = nfc_genl_send_device(skb, dev, NETLINK_CB(cb->skb).pid,
+ cb->nlh->nlmsg_seq,
+ cb, NLM_F_MULTI);
+ if (rc < 0)
+ break;
+
+ dev = nfc_device_iter_next(iter);
+ }
+
+ mutex_unlock(&nfc_devlist_mutex);
+
+ cb->args[1] = (long) dev;
+
+ return skb->len;
+}
+
+static int nfc_genl_dump_devices_done(struct netlink_callback *cb)
+{
+ struct class_dev_iter *iter = (struct class_dev_iter *) cb->args[0];
+
+ nfc_dbg("entry");
+
+ nfc_device_iter_exit(iter);
+ kfree(iter);
+
+ return 0;
+}
+
+static int nfc_genl_get_device(struct sk_buff *skb, struct genl_info *info)
+{
+ struct sk_buff *msg;
+ struct nfc_dev *dev;
+ u32 idx;
+ int rc = -ENOBUFS;
+
+ nfc_dbg("entry");
+
+ if (!info->attrs[NFC_ATTR_DEVICE_INDEX])
+ return -EINVAL;
+
+ idx = nla_get_u32(info->attrs[NFC_ATTR_DEVICE_INDEX]);
+
+ dev = nfc_get_device(idx);
+ if (!dev)
+ return -ENODEV;
+
+ msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+ if (!msg) {
+ rc = -ENOMEM;
+ goto out_putdev;
+ }
+
+ rc = nfc_genl_send_device(msg, dev, info->snd_pid, info->snd_seq,
+ NULL, 0);
+ if (rc < 0)
+ goto out_free;
+
+ nfc_put_device(dev);
+
+ return genlmsg_reply(msg, info);
+
+out_free:
+ nlmsg_free(msg);
+out_putdev:
+ nfc_put_device(dev);
+ return rc;
+}
+
+static int nfc_genl_start_poll(struct sk_buff *skb, struct genl_info *info)
+{
+ struct nfc_dev *dev;
+ int rc;
+ u32 idx;
+ u32 protocols;
+
+ nfc_dbg("entry");
+
+ if (!info->attrs[NFC_ATTR_DEVICE_INDEX] ||
+ !info->attrs[NFC_ATTR_PROTOCOLS])
+ return -EINVAL;
+
+ idx = nla_get_u32(info->attrs[NFC_ATTR_DEVICE_INDEX]);
+ protocols = nla_get_u32(info->attrs[NFC_ATTR_PROTOCOLS]);
+
+ dev = nfc_get_device(idx);
+ if (!dev)
+ return -ENODEV;
+
+ mutex_lock(&dev->genl_data.genl_data_mutex);
+
+ rc = nfc_start_poll(dev, protocols);
+ if (!rc)
+ dev->genl_data.poll_req_pid = info->snd_pid;
+
+ mutex_unlock(&dev->genl_data.genl_data_mutex);
+
+ nfc_put_device(dev);
+ return rc;
+}
+
+static int nfc_genl_stop_poll(struct sk_buff *skb, struct genl_info *info)
+{
+ struct nfc_dev *dev;
+ int rc;
+ u32 idx;
+
+ nfc_dbg("entry");
+
+ if (!info->attrs[NFC_ATTR_DEVICE_INDEX])
+ return -EINVAL;
+
+ idx = nla_get_u32(info->attrs[NFC_ATTR_DEVICE_INDEX]);
+
+ dev = nfc_get_device(idx);
+ if (!dev)
+ return -ENODEV;
+
+ mutex_lock(&dev->genl_data.genl_data_mutex);
+
+ if (dev->genl_data.poll_req_pid != info->snd_pid) {
+ rc = -EBUSY;
+ goto out;
+ }
+
+ rc = nfc_stop_poll(dev);
+ dev->genl_data.poll_req_pid = 0;
+
+out:
+ mutex_unlock(&dev->genl_data.genl_data_mutex);
+ nfc_put_device(dev);
+ return rc;
+}
+
+static struct genl_ops nfc_genl_ops[] = {
+ {
+ .cmd = NFC_CMD_GET_DEVICE,
+ .doit = nfc_genl_get_device,
+ .dumpit = nfc_genl_dump_devices,
+ .done = nfc_genl_dump_devices_done,
+ .policy = nfc_genl_policy,
+ },
+ {
+ .cmd = NFC_CMD_START_POLL,
+ .doit = nfc_genl_start_poll,
+ .policy = nfc_genl_policy,
+ },
+ {
+ .cmd = NFC_CMD_STOP_POLL,
+ .doit = nfc_genl_stop_poll,
+ .policy = nfc_genl_policy,
+ },
+ {
+ .cmd = NFC_CMD_GET_TARGET,
+ .dumpit = nfc_genl_dump_targets,
+ .done = nfc_genl_dump_targets_done,
+ .policy = nfc_genl_policy,
+ },
+};
+
+static int nfc_genl_rcv_nl_event(struct notifier_block *this,
+ unsigned long event, void *ptr)
+{
+ struct netlink_notify *n = ptr;
+ struct class_dev_iter iter;
+ struct nfc_dev *dev;
+
+ if (event != NETLINK_URELEASE || n->protocol != NETLINK_GENERIC)
+ goto out;
+
+ nfc_dbg("NETLINK_URELEASE event from id %d", n->pid);
+
+ nfc_device_iter_init(&iter);
+ dev = nfc_device_iter_next(&iter);
+
+ while (dev) {
+ mutex_lock(&dev->genl_data.genl_data_mutex);
+ if (dev->genl_data.poll_req_pid == n->pid) {
+ nfc_stop_poll(dev);
+ dev->genl_data.poll_req_pid = 0;
+ }
+ mutex_unlock(&dev->genl_data.genl_data_mutex);
+ dev = nfc_device_iter_next(&iter);
+ }
+
+ nfc_device_iter_exit(&iter);
+
+out:
+ return NOTIFY_DONE;
+}
+
+void nfc_genl_data_init(struct nfc_genl_data *genl_data)
+{
+ genl_data->poll_req_pid = 0;
+ mutex_init(&genl_data->genl_data_mutex);
+}
+
+void nfc_genl_data_exit(struct nfc_genl_data *genl_data)
+{
+ mutex_destroy(&genl_data->genl_data_mutex);
+}
+
+static struct notifier_block nl_notifier = {
+ .notifier_call = nfc_genl_rcv_nl_event,
+};
+
+/**
+ * nfc_genl_init() - Initialize netlink interface
+ *
+ * This initialization function registers the nfc netlink family.
+ */
+int __init nfc_genl_init(void)
+{
+ int rc;
+
+ rc = genl_register_family_with_ops(&nfc_genl_family, nfc_genl_ops,
+ ARRAY_SIZE(nfc_genl_ops));
+ if (rc)
+ return rc;
+
+ rc = genl_register_mc_group(&nfc_genl_family, &nfc_genl_event_mcgrp);
+
+ netlink_register_notifier(&nl_notifier);
+
+ return rc;
+}
+
+/**
+ * nfc_genl_exit() - Deinitialize netlink interface
+ *
+ * This exit function unregisters the nfc netlink family.
+ */
+void nfc_genl_exit(void)
+{
+ netlink_unregister_notifier(&nl_notifier);
+ genl_unregister_family(&nfc_genl_family);
+}
--- /dev/null
+/*
+ * Copyright (C) 2011 Instituto Nokia de Tecnologia
+ *
+ * Authors:
+ * Lauro Ramos Venancio <lauro.venancio@openbossa.org>
+ * Aloisio Almeida Jr <aloisio.almeida@openbossa.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the
+ * Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __LOCAL_NFC_H
+#define __LOCAL_NFC_H
+
+#include <net/nfc.h>
+#include <net/sock.h>
+
+__attribute__((format (printf, 2, 3)))
+int nfc_printk(const char *level, const char *fmt, ...);
+
+#define nfc_info(fmt, arg...) nfc_printk(KERN_INFO, fmt, ##arg)
+#define nfc_err(fmt, arg...) nfc_printk(KERN_ERR, fmt, ##arg)
+#define nfc_dbg(fmt, arg...) pr_debug(fmt "\n", ##arg)
+
+struct nfc_protocol {
+ int id;
+ struct proto *proto;
+ struct module *owner;
+ int (*create)(struct net *net, struct socket *sock,
+ const struct nfc_protocol *nfc_proto);
+};
+
+struct nfc_rawsock {
+ struct sock sk;
+ struct nfc_dev *dev;
+ u32 target_idx;
+ struct work_struct tx_work;
+ bool tx_work_scheduled;
+};
+#define nfc_rawsock(sk) ((struct nfc_rawsock *) sk)
+#define to_rawsock_sk(_tx_work) \
+ ((struct sock *) container_of(_tx_work, struct nfc_rawsock, tx_work))
+
+int __init rawsock_init(void);
+void rawsock_exit(void);
+
+int __init af_nfc_init(void);
+void af_nfc_exit(void);
+int nfc_proto_register(const struct nfc_protocol *nfc_proto);
+void nfc_proto_unregister(const struct nfc_protocol *nfc_proto);
+
+extern int nfc_devlist_generation;
+extern struct mutex nfc_devlist_mutex;
+
+int __init nfc_genl_init(void);
+void nfc_genl_exit(void);
+
+void nfc_genl_data_init(struct nfc_genl_data *genl_data);
+void nfc_genl_data_exit(struct nfc_genl_data *genl_data);
+
+int nfc_genl_targets_found(struct nfc_dev *dev);
+
+int nfc_genl_device_added(struct nfc_dev *dev);
+int nfc_genl_device_removed(struct nfc_dev *dev);
+
+struct nfc_dev *nfc_get_device(unsigned idx);
+
+static inline void nfc_put_device(struct nfc_dev *dev)
+{
+ put_device(&dev->dev);
+}
+
+static inline void nfc_device_iter_init(struct class_dev_iter *iter)
+{
+ class_dev_iter_init(iter, &nfc_class, NULL, NULL);
+}
+
+static inline struct nfc_dev *nfc_device_iter_next(struct class_dev_iter *iter)
+{
+ struct device *d = class_dev_iter_next(iter);
+ if (!d)
+ return NULL;
+
+ return to_nfc_dev(d);
+}
+
+static inline void nfc_device_iter_exit(struct class_dev_iter *iter)
+{
+ class_dev_iter_exit(iter);
+}
+
+int nfc_start_poll(struct nfc_dev *dev, u32 protocols);
+
+int nfc_stop_poll(struct nfc_dev *dev);
+
+int nfc_activate_target(struct nfc_dev *dev, u32 target_idx, u32 protocol);
+
+int nfc_deactivate_target(struct nfc_dev *dev, u32 target_idx);
+
+int nfc_data_exchange(struct nfc_dev *dev, u32 target_idx,
+ struct sk_buff *skb,
+ data_exchange_cb_t cb,
+ void *cb_context);
+
+#endif /* __LOCAL_NFC_H */
--- /dev/null
+/*
+ * Copyright (C) 2011 Instituto Nokia de Tecnologia
+ *
+ * Authors:
+ * Aloisio Almeida Jr <aloisio.almeida@openbossa.org>
+ * Lauro Ramos Venancio <lauro.venancio@openbossa.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the
+ * Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <net/tcp_states.h>
+#include <linux/nfc.h>
+
+#include "nfc.h"
+
+static void rawsock_write_queue_purge(struct sock *sk)
+{
+ nfc_dbg("sk=%p", sk);
+
+ spin_lock_bh(&sk->sk_write_queue.lock);
+ __skb_queue_purge(&sk->sk_write_queue);
+ nfc_rawsock(sk)->tx_work_scheduled = false;
+ spin_unlock_bh(&sk->sk_write_queue.lock);
+}
+
+static void rawsock_report_error(struct sock *sk, int err)
+{
+ nfc_dbg("sk=%p err=%d", sk, err);
+
+ sk->sk_shutdown = SHUTDOWN_MASK;
+ sk->sk_err = -err;
+ sk->sk_error_report(sk);
+
+ rawsock_write_queue_purge(sk);
+}
+
+static int rawsock_release(struct socket *sock)
+{
+ struct sock *sk = sock->sk;
+
+ nfc_dbg("sock=%p", sock);
+
+ sock_orphan(sk);
+ sock_put(sk);
+
+ return 0;
+}
+
+static int rawsock_connect(struct socket *sock, struct sockaddr *_addr,
+ int len, int flags)
+{
+ struct sock *sk = sock->sk;
+ struct sockaddr_nfc *addr = (struct sockaddr_nfc *)_addr;
+ struct nfc_dev *dev;
+ int rc = 0;
+
+ nfc_dbg("sock=%p sk=%p flags=%d", sock, sk, flags);
+
+ if (!addr || len < sizeof(struct sockaddr_nfc) ||
+ addr->sa_family != AF_NFC)
+ return -EINVAL;
+
+ nfc_dbg("addr dev_idx=%u target_idx=%u protocol=%u", addr->dev_idx,
+ addr->target_idx, addr->nfc_protocol);
+
+ lock_sock(sk);
+
+ if (sock->state == SS_CONNECTED) {
+ rc = -EISCONN;
+ goto error;
+ }
+
+ dev = nfc_get_device(addr->dev_idx);
+ if (!dev) {
+ rc = -ENODEV;
+ goto error;
+ }
+
+ if (addr->target_idx > dev->target_idx - 1 ||
+ addr->target_idx < dev->target_idx - dev->n_targets) {
+ rc = -EINVAL;
+ goto error;
+ }
+
+ if (addr->target_idx > dev->target_idx - 1 ||
+ addr->target_idx < dev->target_idx - dev->n_targets) {
+ rc = -EINVAL;
+ goto error;
+ }
+
+ rc = nfc_activate_target(dev, addr->target_idx, addr->nfc_protocol);
+ if (rc)
+ goto put_dev;
+
+ nfc_rawsock(sk)->dev = dev;
+ nfc_rawsock(sk)->target_idx = addr->target_idx;
+ sock->state = SS_CONNECTED;
+ sk->sk_state = TCP_ESTABLISHED;
+ sk->sk_state_change(sk);
+
+ release_sock(sk);
+ return 0;
+
+put_dev:
+ nfc_put_device(dev);
+error:
+ release_sock(sk);
+ return rc;
+}
+
+static int rawsock_add_header(struct sk_buff *skb)
+{
+
+ if (skb_cow_head(skb, 1))
+ return -ENOMEM;
+
+ *skb_push(skb, 1) = 0;
+
+ return 0;
+}
+
+static void rawsock_data_exchange_complete(void *context, struct sk_buff *skb,
+ int err)
+{
+ struct sock *sk = (struct sock *) context;
+
+ BUG_ON(in_irq());
+
+ nfc_dbg("sk=%p err=%d", sk, err);
+
+ if (err)
+ goto error;
+
+ err = rawsock_add_header(skb);
+ if (err)
+ goto error;
+
+ err = sock_queue_rcv_skb(sk, skb);
+ if (err)
+ goto error;
+
+ spin_lock_bh(&sk->sk_write_queue.lock);
+ if (!skb_queue_empty(&sk->sk_write_queue))
+ schedule_work(&nfc_rawsock(sk)->tx_work);
+ else
+ nfc_rawsock(sk)->tx_work_scheduled = false;
+ spin_unlock_bh(&sk->sk_write_queue.lock);
+
+ sock_put(sk);
+ return;
+
+error:
+ rawsock_report_error(sk, err);
+ sock_put(sk);
+}
+
+static void rawsock_tx_work(struct work_struct *work)
+{
+ struct sock *sk = to_rawsock_sk(work);
+ struct nfc_dev *dev = nfc_rawsock(sk)->dev;
+ u32 target_idx = nfc_rawsock(sk)->target_idx;
+ struct sk_buff *skb;
+ int rc;
+
+ nfc_dbg("sk=%p target_idx=%u", sk, target_idx);
+
+ if (sk->sk_shutdown & SEND_SHUTDOWN) {
+ rawsock_write_queue_purge(sk);
+ return;
+ }
+
+ skb = skb_dequeue(&sk->sk_write_queue);
+
+ sock_hold(sk);
+ rc = nfc_data_exchange(dev, target_idx, skb,
+ rawsock_data_exchange_complete, sk);
+ if (rc) {
+ rawsock_report_error(sk, rc);
+ sock_put(sk);
+ }
+}
+
+static int rawsock_sendmsg(struct kiocb *iocb, struct socket *sock,
+ struct msghdr *msg, size_t len)
+{
+ struct sock *sk = sock->sk;
+ struct sk_buff *skb;
+ int rc;
+
+ nfc_dbg("sock=%p sk=%p len=%zu", sock, sk, len);
+
+ if (msg->msg_namelen)
+ return -EOPNOTSUPP;
+
+ if (sock->state != SS_CONNECTED)
+ return -ENOTCONN;
+
+ skb = sock_alloc_send_skb(sk, len, msg->msg_flags & MSG_DONTWAIT,
+ &rc);
+ if (!skb)
+ return rc;
+
+ rc = memcpy_fromiovec(skb_put(skb, len), msg->msg_iov, len);
+ if (rc < 0) {
+ kfree_skb(skb);
+ return rc;
+ }
+
+ spin_lock_bh(&sk->sk_write_queue.lock);
+ __skb_queue_tail(&sk->sk_write_queue, skb);
+ if (!nfc_rawsock(sk)->tx_work_scheduled) {
+ schedule_work(&nfc_rawsock(sk)->tx_work);
+ nfc_rawsock(sk)->tx_work_scheduled = true;
+ }
+ spin_unlock_bh(&sk->sk_write_queue.lock);
+
+ return len;
+}
+
+static int rawsock_recvmsg(struct kiocb *iocb, struct socket *sock,
+ struct msghdr *msg, size_t len, int flags)
+{
+ int noblock = flags & MSG_DONTWAIT;
+ struct sock *sk = sock->sk;
+ struct sk_buff *skb;
+ int copied;
+ int rc;
+
+ nfc_dbg("sock=%p sk=%p len=%zu flags=%d", sock, sk, len, flags);
+
+ skb = skb_recv_datagram(sk, flags, noblock, &rc);
+ if (!skb)
+ return rc;
+
+ msg->msg_namelen = 0;
+
+ copied = skb->len;
+ if (len < copied) {
+ msg->msg_flags |= MSG_TRUNC;
+ copied = len;
+ }
+
+ rc = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
+
+ skb_free_datagram(sk, skb);
+
+ return rc ? : copied;
+}
+
+
+static const struct proto_ops rawsock_ops = {
+ .family = PF_NFC,
+ .owner = THIS_MODULE,
+ .release = rawsock_release,
+ .bind = sock_no_bind,
+ .connect = rawsock_connect,
+ .socketpair = sock_no_socketpair,
+ .accept = sock_no_accept,
+ .getname = sock_no_getname,
+ .poll = datagram_poll,
+ .ioctl = sock_no_ioctl,
+ .listen = sock_no_listen,
+ .shutdown = sock_no_shutdown,
+ .setsockopt = sock_no_setsockopt,
+ .getsockopt = sock_no_getsockopt,
+ .sendmsg = rawsock_sendmsg,
+ .recvmsg = rawsock_recvmsg,
+ .mmap = sock_no_mmap,
+};
+
+static void rawsock_destruct(struct sock *sk)
+{
+ nfc_dbg("sk=%p", sk);
+
+ if (sk->sk_state == TCP_ESTABLISHED) {
+ nfc_deactivate_target(nfc_rawsock(sk)->dev,
+ nfc_rawsock(sk)->target_idx);
+ nfc_put_device(nfc_rawsock(sk)->dev);
+ }
+
+ skb_queue_purge(&sk->sk_receive_queue);
+
+ if (!sock_flag(sk, SOCK_DEAD)) {
+ nfc_err("Freeing alive NFC raw socket %p", sk);
+ return;
+ }
+}
+
+static int rawsock_create(struct net *net, struct socket *sock,
+ const struct nfc_protocol *nfc_proto)
+{
+ struct sock *sk;
+
+ nfc_dbg("sock=%p", sock);
+
+ if (sock->type != SOCK_SEQPACKET)
+ return -ESOCKTNOSUPPORT;
+
+ sock->ops = &rawsock_ops;
+
+ sk = sk_alloc(net, PF_NFC, GFP_KERNEL, nfc_proto->proto);
+ if (!sk)
+ return -ENOMEM;
+
+ sock_init_data(sock, sk);
+ sk->sk_protocol = nfc_proto->id;
+ sk->sk_destruct = rawsock_destruct;
+ sock->state = SS_UNCONNECTED;
+
+ INIT_WORK(&nfc_rawsock(sk)->tx_work, rawsock_tx_work);
+ nfc_rawsock(sk)->tx_work_scheduled = false;
+
+ return 0;
+}
+
+static struct proto rawsock_proto = {
+ .name = "NFC_RAW",
+ .owner = THIS_MODULE,
+ .obj_size = sizeof(struct nfc_rawsock),
+};
+
+static const struct nfc_protocol rawsock_nfc_proto = {
+ .id = NFC_SOCKPROTO_RAW,
+ .proto = &rawsock_proto,
+ .owner = THIS_MODULE,
+ .create = rawsock_create
+};
+
+int __init rawsock_init(void)
+{
+ int rc;
+
+ rc = nfc_proto_register(&rawsock_nfc_proto);
+
+ return rc;
+}
+
+void rawsock_exit(void)
+{
+ nfc_proto_unregister(&rawsock_nfc_proto);
+}
nl80211_send_cqm_pktloss_notify(rdev, dev, peer, num_packets, gfp);
}
EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
+
+void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
+ const u8 *replay_ctr, gfp_t gfp)
+{
+ struct wireless_dev *wdev = dev->ieee80211_ptr;
+ struct wiphy *wiphy = wdev->wiphy;
+ struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
+
+ nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
+}
+EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
[NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
[NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
[NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
+ [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
};
/* policy for the key attributes */
[NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
};
+/* policy for GTK rekey offload attributes */
+static const struct nla_policy
+nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
+ [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
+ [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
+ [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
+};
+
/* ifidx get helper */
static int nl80211_get_ifidx(struct netlink_callback *cb)
{
return err;
}
+static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
+{
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
+ struct net_device *dev = info->user_ptr[1];
+ struct wireless_dev *wdev = dev->ieee80211_ptr;
+ struct nlattr *tb[NUM_NL80211_REKEY_DATA];
+ struct cfg80211_gtk_rekey_data rekey_data;
+ int err;
+
+ if (!info->attrs[NL80211_ATTR_REKEY_DATA])
+ return -EINVAL;
+
+ err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
+ nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
+ nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
+ nl80211_rekey_policy);
+ if (err)
+ return err;
+
+ if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
+ return -ERANGE;
+ if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
+ return -ERANGE;
+ if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
+ return -ERANGE;
+
+ memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
+ NL80211_KEK_LEN);
+ memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
+ NL80211_KCK_LEN);
+ memcpy(rekey_data.replay_ctr,
+ nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
+ NL80211_REPLAY_CTR_LEN);
+
+ wdev_lock(wdev);
+ if (!wdev->current_bss) {
+ err = -ENOTCONN;
+ goto out;
+ }
+
+ if (!rdev->ops->set_rekey_data) {
+ err = -EOPNOTSUPP;
+ goto out;
+ }
+
+ err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data);
+ out:
+ wdev_unlock(wdev);
+ return err;
+}
+
#define NL80211_FLAG_NEED_WIPHY 0x01
#define NL80211_FLAG_NEED_NETDEV 0x02
#define NL80211_FLAG_NEED_RTNL 0x04
.internal_flags = NL80211_FLAG_NEED_WIPHY |
NL80211_FLAG_NEED_RTNL,
},
+ {
+ .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
+ .doit = nl80211_set_rekey_data,
+ .policy = nl80211_policy,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
+ NL80211_FLAG_NEED_RTNL,
+ },
};
static struct genl_multicast_group nl80211_mlme_mcgrp = {
nlmsg_free(msg);
}
+void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
+ struct net_device *netdev, const u8 *bssid,
+ const u8 *replay_ctr, gfp_t gfp)
+{
+ struct sk_buff *msg;
+ struct nlattr *rekey_attr;
+ void *hdr;
+
+ msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
+ if (!msg)
+ return;
+
+ hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
+ if (!hdr) {
+ nlmsg_free(msg);
+ return;
+ }
+
+ NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
+ NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
+
+ rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
+ if (!rekey_attr)
+ goto nla_put_failure;
+
+ NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR,
+ NL80211_REPLAY_CTR_LEN, replay_ctr);
+
+ nla_nest_end(msg, rekey_attr);
+
+ if (genlmsg_end(msg, hdr) < 0) {
+ nlmsg_free(msg);
+ return;
+ }
+
+ genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+ nl80211_mlme_mcgrp.id, gfp);
+ return;
+
+ nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+ nlmsg_free(msg);
+}
+
void
nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
struct net_device *netdev, const u8 *peer,
struct net_device *netdev, const u8 *peer,
u32 num_packets, gfp_t gfp);
+void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
+ struct net_device *netdev, const u8 *bssid,
+ const u8 *replay_ctr, gfp_t gfp);
+
#endif /* __NET_WIRELESS_NL80211_H */
int __cfg80211_stop_sched_scan(struct cfg80211_registered_device *rdev,
bool driver_initiated)
{
- int err;
struct net_device *dev;
ASSERT_RDEV_LOCK(rdev);
dev = rdev->sched_scan_req->dev;
if (!driver_initiated) {
- err = rdev->ops->sched_scan_stop(&rdev->wiphy, dev);
+ int err = rdev->ops->sched_scan_stop(&rdev->wiphy, dev);
if (err)
return err;
}
kfree(rdev->sched_scan_req);
rdev->sched_scan_req = NULL;
- return err;
+ return 0;
}
static void bss_release(struct kref *ref)
projects / firefly-linux-kernel-4.4.55.git / commitdiff