3 * Linux device driver for USB based Prism54
5 * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
7 * Based on the islsm (softmac prism54) driver, which is:
8 * Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al.
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
15 #include <linux/init.h>
16 #include <linux/usb.h>
17 #include <linux/pci.h>
18 #include <linux/slab.h>
19 #include <linux/firmware.h>
20 #include <linux/etherdevice.h>
21 #include <linux/delay.h>
22 #include <linux/crc32.h>
23 #include <linux/module.h>
24 #include <net/mac80211.h>
30 MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>");
31 MODULE_DESCRIPTION("Prism54 USB wireless driver");
32 MODULE_LICENSE("GPL");
33 MODULE_ALIAS("prism54usb");
34 MODULE_FIRMWARE("isl3886usb");
35 MODULE_FIRMWARE("isl3887usb");
40 * Always update our wiki's device list (located at:
41 * http://wireless.kernel.org/en/users/Drivers/p54/devices ),
42 * whenever you add a new device.
45 static struct usb_device_id p54u_table[] = {
46 /* Version 1 devices (pci chip + net2280) */
47 {USB_DEVICE(0x0411, 0x0050)}, /* Buffalo WLI2-USB2-G54 */
48 {USB_DEVICE(0x045e, 0x00c2)}, /* Microsoft MN-710 */
49 {USB_DEVICE(0x0506, 0x0a11)}, /* 3COM 3CRWE254G72 */
50 {USB_DEVICE(0x0675, 0x0530)}, /* DrayTek Vigor 530 */
51 {USB_DEVICE(0x06b9, 0x0120)}, /* Thomson SpeedTouch 120g */
52 {USB_DEVICE(0x0707, 0xee06)}, /* SMC 2862W-G */
53 {USB_DEVICE(0x07aa, 0x001c)}, /* Corega CG-WLUSB2GT */
54 {USB_DEVICE(0x083a, 0x4501)}, /* Accton 802.11g WN4501 USB */
55 {USB_DEVICE(0x083a, 0x4502)}, /* Siemens Gigaset USB Adapter */
56 {USB_DEVICE(0x083a, 0x5501)}, /* Phillips CPWUA054 */
57 {USB_DEVICE(0x0846, 0x4200)}, /* Netgear WG121 */
58 {USB_DEVICE(0x0846, 0x4210)}, /* Netgear WG121 the second ? */
59 {USB_DEVICE(0x0846, 0x4220)}, /* Netgear WG111 */
60 {USB_DEVICE(0x09aa, 0x1000)}, /* Spinnaker Proto board */
61 {USB_DEVICE(0x0bf8, 0x1007)}, /* Fujitsu E-5400 USB */
62 {USB_DEVICE(0x0cde, 0x0006)}, /* Medion 40900, Roper Europe */
63 {USB_DEVICE(0x0db0, 0x6826)}, /* MSI UB54G (MS-6826) */
64 {USB_DEVICE(0x107b, 0x55f2)}, /* Gateway WGU-210 (Gemtek) */
65 {USB_DEVICE(0x124a, 0x4023)}, /* Shuttle PN15, Airvast WM168g, IOGear GWU513 */
66 {USB_DEVICE(0x1435, 0x0210)}, /* Inventel UR054G */
67 {USB_DEVICE(0x15a9, 0x0002)}, /* Gemtek WUBI-100GW 802.11g */
68 {USB_DEVICE(0x1630, 0x0005)}, /* 2Wire 802.11g USB (v1) / Z-Com */
69 {USB_DEVICE(0x182d, 0x096b)}, /* Sitecom WL-107 */
70 {USB_DEVICE(0x1915, 0x2234)}, /* Linksys WUSB54G OEM */
71 {USB_DEVICE(0x1915, 0x2235)}, /* Linksys WUSB54G Portable OEM */
72 {USB_DEVICE(0x2001, 0x3701)}, /* DLink DWL-G120 Spinnaker */
73 {USB_DEVICE(0x2001, 0x3703)}, /* DLink DWL-G122 */
74 {USB_DEVICE(0x2001, 0x3762)}, /* Conceptronic C54U */
75 {USB_DEVICE(0x5041, 0x2234)}, /* Linksys WUSB54G */
76 {USB_DEVICE(0x5041, 0x2235)}, /* Linksys WUSB54G Portable */
78 /* Version 2 devices (3887) */
79 {USB_DEVICE(0x0471, 0x1230)}, /* Philips CPWUA054/00 */
80 {USB_DEVICE(0x050d, 0x7050)}, /* Belkin F5D7050 ver 1000 */
81 {USB_DEVICE(0x0572, 0x2000)}, /* Cohiba Proto board */
82 {USB_DEVICE(0x0572, 0x2002)}, /* Cohiba Proto board */
83 {USB_DEVICE(0x06a9, 0x000e)}, /* Westell 802.11g USB (A90-211WG-01) */
84 {USB_DEVICE(0x06b9, 0x0121)}, /* Thomson SpeedTouch 121g */
85 {USB_DEVICE(0x0707, 0xee13)}, /* SMC 2862W-G version 2 */
86 {USB_DEVICE(0x0803, 0x4310)}, /* Zoom 4410a */
87 {USB_DEVICE(0x083a, 0x4503)}, /* T-Com Sinus 154 data II */
88 {USB_DEVICE(0x083a, 0x4521)}, /* Siemens Gigaset USB Adapter 54 version 2 */
89 {USB_DEVICE(0x083a, 0xc501)}, /* Zoom Wireless-G 4410 */
90 {USB_DEVICE(0x083a, 0xf503)}, /* Accton FD7050E ver 1010ec */
91 {USB_DEVICE(0x0846, 0x4240)}, /* Netgear WG111 (v2) */
92 {USB_DEVICE(0x0915, 0x2000)}, /* Cohiba Proto board */
93 {USB_DEVICE(0x0915, 0x2002)}, /* Cohiba Proto board */
94 {USB_DEVICE(0x0baf, 0x0118)}, /* U.S. Robotics U5 802.11g Adapter*/
95 {USB_DEVICE(0x0bf8, 0x1009)}, /* FUJITSU E-5400 USB D1700*/
96 /* {USB_DEVICE(0x0cde, 0x0006)}, * Medion MD40900 already listed above,
97 * just noting it here for clarity */
98 {USB_DEVICE(0x0cde, 0x0008)}, /* Sagem XG703A */
99 {USB_DEVICE(0x0cde, 0x0015)}, /* Zcomax XG-705A */
100 {USB_DEVICE(0x0d8e, 0x3762)}, /* DLink DWL-G120 Cohiba */
101 {USB_DEVICE(0x124a, 0x4025)}, /* IOGear GWU513 (GW3887IK chip) */
102 {USB_DEVICE(0x1260, 0xee22)}, /* SMC 2862W-G version 2 */
103 {USB_DEVICE(0x13b1, 0x000a)}, /* Linksys WUSB54G ver 2 */
104 {USB_DEVICE(0x13B1, 0x000C)}, /* Linksys WUSB54AG */
105 {USB_DEVICE(0x1413, 0x5400)}, /* Telsey 802.11g USB2.0 Adapter */
106 {USB_DEVICE(0x1435, 0x0427)}, /* Inventel UR054G */
107 /* {USB_DEVICE(0x15a9, 0x0002)}, * Also SparkLAN WL-682 with 3887 */
108 {USB_DEVICE(0x1668, 0x1050)}, /* Actiontec 802UIG-1 */
109 {USB_DEVICE(0x1740, 0x1000)}, /* Senao NUB-350 */
110 {USB_DEVICE(0x2001, 0x3704)}, /* DLink DWL-G122 rev A2 */
111 {USB_DEVICE(0x2001, 0x3705)}, /* D-Link DWL-G120 rev C1 */
112 {USB_DEVICE(0x413c, 0x5513)}, /* Dell WLA3310 USB Wireless Adapter */
113 {USB_DEVICE(0x413c, 0x8102)}, /* Spinnaker DUT */
114 {USB_DEVICE(0x413c, 0x8104)}, /* Cohiba Proto board */
118 MODULE_DEVICE_TABLE(usb, p54u_table);
120 static const struct {
122 enum p54u_hw_type type;
125 } p54u_fwlist[__NUM_P54U_HWTYPES] = {
127 .type = P54U_NET2280,
130 .hw = "ISL3886 + net2280",
140 static void p54u_rx_cb(struct urb *urb)
142 struct sk_buff *skb = (struct sk_buff *) urb->context;
143 struct p54u_rx_info *info = (struct p54u_rx_info *)skb->cb;
144 struct ieee80211_hw *dev = info->dev;
145 struct p54u_priv *priv = dev->priv;
147 skb_unlink(skb, &priv->rx_queue);
149 if (unlikely(urb->status)) {
150 dev_kfree_skb_irq(skb);
154 skb_put(skb, urb->actual_length);
156 if (priv->hw_type == P54U_NET2280)
157 skb_pull(skb, priv->common.tx_hdr_len);
158 if (priv->common.fw_interface == FW_LM87) {
163 if (p54_rx(dev, skb)) {
164 skb = dev_alloc_skb(priv->common.rx_mtu + 32);
165 if (unlikely(!skb)) {
166 /* TODO check rx queue length and refill *somewhere* */
170 info = (struct p54u_rx_info *) skb->cb;
173 urb->transfer_buffer = skb_tail_pointer(skb);
176 if (priv->hw_type == P54U_NET2280)
177 skb_push(skb, priv->common.tx_hdr_len);
178 if (priv->common.fw_interface == FW_LM87) {
182 skb_reset_tail_pointer(skb);
184 urb->transfer_buffer = skb_tail_pointer(skb);
186 skb_queue_tail(&priv->rx_queue, skb);
187 usb_anchor_urb(urb, &priv->submitted);
188 if (usb_submit_urb(urb, GFP_ATOMIC)) {
189 skb_unlink(skb, &priv->rx_queue);
190 usb_unanchor_urb(urb);
191 dev_kfree_skb_irq(skb);
195 static void p54u_tx_cb(struct urb *urb)
197 struct sk_buff *skb = urb->context;
198 struct ieee80211_hw *dev =
199 usb_get_intfdata(usb_ifnum_to_if(urb->dev, 0));
201 p54_free_skb(dev, skb);
204 static void p54u_tx_dummy_cb(struct urb *urb) { }
206 static void p54u_free_urbs(struct ieee80211_hw *dev)
208 struct p54u_priv *priv = dev->priv;
209 usb_kill_anchored_urbs(&priv->submitted);
212 static void p54u_stop(struct ieee80211_hw *dev)
215 * TODO: figure out how to reliably stop the 3887 and net2280 so
216 * the hardware is still usable next time we want to start it.
217 * until then, we just stop listening to the hardware..
222 static int p54u_init_urbs(struct ieee80211_hw *dev)
224 struct p54u_priv *priv = dev->priv;
225 struct urb *entry = NULL;
227 struct p54u_rx_info *info;
230 while (skb_queue_len(&priv->rx_queue) < 32) {
231 skb = __dev_alloc_skb(priv->common.rx_mtu + 32, GFP_KERNEL);
236 entry = usb_alloc_urb(0, GFP_KERNEL);
242 usb_fill_bulk_urb(entry, priv->udev,
243 usb_rcvbulkpipe(priv->udev, P54U_PIPE_DATA),
244 skb_tail_pointer(skb),
245 priv->common.rx_mtu + 32, p54u_rx_cb, skb);
246 info = (struct p54u_rx_info *) skb->cb;
249 skb_queue_tail(&priv->rx_queue, skb);
251 usb_anchor_urb(entry, &priv->submitted);
252 ret = usb_submit_urb(entry, GFP_KERNEL);
254 skb_unlink(skb, &priv->rx_queue);
255 usb_unanchor_urb(entry);
271 static int p54u_open(struct ieee80211_hw *dev)
274 * TODO: Because we don't know how to reliably stop the 3887 and
275 * the isl3886+net2280, other than brutally cut off all
276 * communications. We have to reinitialize the urbs on every start.
278 return p54u_init_urbs(dev);
281 static __le32 p54u_lm87_chksum(const __le32 *data, size_t length)
287 chk ^= le32_to_cpu(*data++);
288 chk = (chk >> 5) ^ (chk << 3);
291 return cpu_to_le32(chk);
294 static void p54u_tx_lm87(struct ieee80211_hw *dev, struct sk_buff *skb)
296 struct p54u_priv *priv = dev->priv;
297 struct urb *data_urb;
298 struct lm87_tx_hdr *hdr = (void *)skb->data - sizeof(*hdr);
300 data_urb = usb_alloc_urb(0, GFP_ATOMIC);
302 p54_free_skb(dev, skb);
306 hdr->chksum = p54u_lm87_chksum((__le32 *)skb->data, skb->len);
307 hdr->device_addr = ((struct p54_hdr *)skb->data)->req_id;
309 usb_fill_bulk_urb(data_urb, priv->udev,
310 usb_sndbulkpipe(priv->udev, P54U_PIPE_DATA),
311 hdr, skb->len + sizeof(*hdr), FREE_AFTER_TX(skb) ?
312 p54u_tx_cb : p54u_tx_dummy_cb, skb);
313 data_urb->transfer_flags |= URB_ZERO_PACKET;
315 usb_anchor_urb(data_urb, &priv->submitted);
316 if (usb_submit_urb(data_urb, GFP_ATOMIC)) {
317 usb_unanchor_urb(data_urb);
318 p54_free_skb(dev, skb);
320 usb_free_urb(data_urb);
323 static void p54u_tx_net2280(struct ieee80211_hw *dev, struct sk_buff *skb)
325 struct p54u_priv *priv = dev->priv;
326 struct urb *int_urb = NULL, *data_urb = NULL;
327 struct net2280_tx_hdr *hdr = (void *)skb->data - sizeof(*hdr);
328 struct net2280_reg_write *reg = NULL;
331 reg = kmalloc(sizeof(*reg), GFP_ATOMIC);
335 int_urb = usb_alloc_urb(0, GFP_ATOMIC);
339 data_urb = usb_alloc_urb(0, GFP_ATOMIC);
343 reg->port = cpu_to_le16(NET2280_DEV_U32);
344 reg->addr = cpu_to_le32(P54U_DEV_BASE);
345 reg->val = cpu_to_le32(ISL38XX_DEV_INT_DATA);
347 memset(hdr, 0, sizeof(*hdr));
348 hdr->len = cpu_to_le16(skb->len);
349 hdr->device_addr = ((struct p54_hdr *) skb->data)->req_id;
351 usb_fill_bulk_urb(int_urb, priv->udev,
352 usb_sndbulkpipe(priv->udev, P54U_PIPE_DEV), reg, sizeof(*reg),
353 p54u_tx_dummy_cb, dev);
356 * URB_FREE_BUFFER triggers a code path in the USB subsystem that will
357 * free what is inside the transfer_buffer after the last reference to
358 * the int_urb is dropped.
360 int_urb->transfer_flags |= URB_FREE_BUFFER | URB_ZERO_PACKET;
363 usb_fill_bulk_urb(data_urb, priv->udev,
364 usb_sndbulkpipe(priv->udev, P54U_PIPE_DATA),
365 hdr, skb->len + sizeof(*hdr), FREE_AFTER_TX(skb) ?
366 p54u_tx_cb : p54u_tx_dummy_cb, skb);
367 data_urb->transfer_flags |= URB_ZERO_PACKET;
369 usb_anchor_urb(int_urb, &priv->submitted);
370 err = usb_submit_urb(int_urb, GFP_ATOMIC);
372 usb_unanchor_urb(int_urb);
376 usb_anchor_urb(data_urb, &priv->submitted);
377 err = usb_submit_urb(data_urb, GFP_ATOMIC);
379 usb_unanchor_urb(data_urb);
383 usb_free_urb(int_urb);
384 usb_free_urb(data_urb);
388 p54_free_skb(dev, skb);
392 static int p54u_write(struct p54u_priv *priv,
393 struct net2280_reg_write *buf,
394 enum net2280_op_type type,
395 __le32 addr, __le32 val)
401 ep = usb_sndbulkpipe(priv->udev, P54U_PIPE_DEV);
403 ep = usb_sndbulkpipe(priv->udev, P54U_PIPE_BRG);
405 buf->port = cpu_to_le16(type);
409 return usb_bulk_msg(priv->udev, ep, buf, sizeof(*buf), &alen, 1000);
412 static int p54u_read(struct p54u_priv *priv, void *buf,
413 enum net2280_op_type type,
414 __le32 addr, __le32 *val)
416 struct net2280_reg_read *read = buf;
426 read->port = cpu_to_le16(type);
429 err = usb_bulk_msg(priv->udev, usb_sndbulkpipe(priv->udev, ep),
430 read, sizeof(*read), &alen, 1000);
434 err = usb_bulk_msg(priv->udev, usb_rcvbulkpipe(priv->udev, ep),
435 reg, sizeof(*reg), &alen, 1000);
443 static int p54u_bulk_msg(struct p54u_priv *priv, unsigned int ep,
444 void *data, size_t len)
447 return usb_bulk_msg(priv->udev, usb_sndbulkpipe(priv->udev, ep),
448 data, len, &alen, 2000);
451 static int p54u_device_reset(struct ieee80211_hw *dev)
453 struct p54u_priv *priv = dev->priv;
454 int ret, lock = (priv->intf->condition != USB_INTERFACE_BINDING);
457 ret = usb_lock_device_for_reset(priv->udev, priv->intf);
459 dev_err(&priv->udev->dev, "(p54usb) unable to lock "
460 "device for reset (%d)!\n", ret);
465 ret = usb_reset_device(priv->udev);
467 usb_unlock_device(priv->udev);
470 dev_err(&priv->udev->dev, "(p54usb) unable to reset "
471 "device (%d)!\n", ret);
476 static const char p54u_romboot_3887[] = "~~~~";
477 static int p54u_firmware_reset_3887(struct ieee80211_hw *dev)
479 struct p54u_priv *priv = dev->priv;
483 buf = kmemdup(p54u_romboot_3887, 4, GFP_KERNEL);
486 ret = p54u_bulk_msg(priv, P54U_PIPE_DATA,
490 dev_err(&priv->udev->dev, "(p54usb) unable to jump to "
491 "boot ROM (%d)!\n", ret);
496 static const char p54u_firmware_upload_3887[] = "<\r";
497 static int p54u_upload_firmware_3887(struct ieee80211_hw *dev)
499 struct p54u_priv *priv = dev->priv;
504 unsigned int left, remains, block_size;
505 struct x2_header *hdr;
506 unsigned long timeout;
508 err = p54u_firmware_reset_3887(dev);
512 tmp = buf = kmalloc(P54U_FW_BLOCK, GFP_KERNEL);
514 dev_err(&priv->udev->dev, "(p54usb) cannot allocate firmware"
519 left = block_size = min((size_t)P54U_FW_BLOCK, priv->fw->size);
520 strcpy(buf, p54u_firmware_upload_3887);
521 left -= strlen(p54u_firmware_upload_3887);
522 tmp += strlen(p54u_firmware_upload_3887);
524 data = priv->fw->data;
525 remains = priv->fw->size;
527 hdr = (struct x2_header *)(buf + strlen(p54u_firmware_upload_3887));
528 memcpy(hdr->signature, X2_SIGNATURE, X2_SIGNATURE_SIZE);
529 hdr->fw_load_addr = cpu_to_le32(ISL38XX_DEV_FIRMWARE_ADDR);
530 hdr->fw_length = cpu_to_le32(priv->fw->size);
531 hdr->crc = cpu_to_le32(~crc32_le(~0, (void *)&hdr->fw_load_addr,
533 left -= sizeof(*hdr);
561 err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, block_size);
563 dev_err(&priv->udev->dev, "(p54usb) firmware "
565 goto err_upload_failed;
569 left = block_size = min((unsigned int)P54U_FW_BLOCK, remains);
572 *((__le32 *)buf) = cpu_to_le32(~crc32_le(~0, priv->fw->data,
574 err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, sizeof(u32));
576 dev_err(&priv->udev->dev, "(p54usb) firmware upload failed!\n");
577 goto err_upload_failed;
579 timeout = jiffies + msecs_to_jiffies(1000);
580 while (!(err = usb_bulk_msg(priv->udev,
581 usb_rcvbulkpipe(priv->udev, P54U_PIPE_DATA), buf, 128, &alen, 1000))) {
582 if (alen > 2 && !memcmp(buf, "OK", 2))
585 if (alen > 5 && !memcmp(buf, "ERROR", 5)) {
590 if (time_after(jiffies, timeout)) {
591 dev_err(&priv->udev->dev, "(p54usb) firmware boot "
598 dev_err(&priv->udev->dev, "(p54usb) firmware upload failed!\n");
599 goto err_upload_failed;
604 err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, 2);
606 dev_err(&priv->udev->dev, "(p54usb) firmware boot failed!\n");
607 goto err_upload_failed;
610 timeout = jiffies + msecs_to_jiffies(1000);
611 while (!(err = usb_bulk_msg(priv->udev,
612 usb_rcvbulkpipe(priv->udev, P54U_PIPE_DATA), buf, 128, &alen, 1000))) {
613 if (alen > 0 && buf[0] == 'g')
616 if (time_after(jiffies, timeout)) {
622 goto err_upload_failed;
629 static int p54u_upload_firmware_net2280(struct ieee80211_hw *dev)
631 struct p54u_priv *priv = dev->priv;
632 const struct p54p_csr *devreg = (const struct p54p_csr *) P54U_DEV_BASE;
636 unsigned int remains, offset;
639 buf = kmalloc(512, GFP_KERNEL);
641 dev_err(&priv->udev->dev, "(p54usb) firmware buffer "
646 #define P54U_WRITE(type, addr, data) \
648 err = p54u_write(priv, buf, type,\
649 cpu_to_le32((u32)(unsigned long)addr), data);\
654 #define P54U_READ(type, addr) \
656 err = p54u_read(priv, buf, type,\
657 cpu_to_le32((u32)(unsigned long)addr), ®);\
662 /* power down net2280 bridge */
663 P54U_READ(NET2280_BRG_U32, NET2280_GPIOCTL);
664 reg |= cpu_to_le32(P54U_BRG_POWER_DOWN);
665 reg &= cpu_to_le32(~P54U_BRG_POWER_UP);
666 P54U_WRITE(NET2280_BRG_U32, NET2280_GPIOCTL, reg);
670 /* power up bridge */
671 reg |= cpu_to_le32(P54U_BRG_POWER_UP);
672 reg &= cpu_to_le32(~P54U_BRG_POWER_DOWN);
673 P54U_WRITE(NET2280_BRG_U32, NET2280_GPIOCTL, reg);
677 P54U_WRITE(NET2280_BRG_U32, NET2280_DEVINIT,
678 cpu_to_le32(NET2280_CLK_30Mhz |
680 NET2280_PCI_SOFT_RESET));
684 P54U_WRITE(NET2280_BRG_CFG_U16, PCI_COMMAND,
685 cpu_to_le32(PCI_COMMAND_MEMORY |
686 PCI_COMMAND_MASTER));
688 P54U_WRITE(NET2280_BRG_CFG_U32, PCI_BASE_ADDRESS_0,
689 cpu_to_le32(NET2280_BASE));
691 P54U_READ(NET2280_BRG_CFG_U16, PCI_STATUS);
692 reg |= cpu_to_le32(PCI_STATUS_REC_MASTER_ABORT);
693 P54U_WRITE(NET2280_BRG_CFG_U16, PCI_STATUS, reg);
695 // TODO: we really need this?
696 P54U_READ(NET2280_BRG_U32, NET2280_RELNUM);
698 P54U_WRITE(NET2280_BRG_U32, NET2280_EPA_RSP,
699 cpu_to_le32(NET2280_CLEAR_NAK_OUT_PACKETS_MODE));
700 P54U_WRITE(NET2280_BRG_U32, NET2280_EPC_RSP,
701 cpu_to_le32(NET2280_CLEAR_NAK_OUT_PACKETS_MODE));
703 P54U_WRITE(NET2280_BRG_CFG_U32, PCI_BASE_ADDRESS_2,
704 cpu_to_le32(NET2280_BASE2));
706 /* finally done setting up the bridge */
708 P54U_WRITE(NET2280_DEV_CFG_U16, 0x10000 | PCI_COMMAND,
709 cpu_to_le32(PCI_COMMAND_MEMORY |
710 PCI_COMMAND_MASTER));
712 P54U_WRITE(NET2280_DEV_CFG_U16, 0x10000 | 0x40 /* TRDY timeout */, 0);
713 P54U_WRITE(NET2280_DEV_CFG_U32, 0x10000 | PCI_BASE_ADDRESS_0,
714 cpu_to_le32(P54U_DEV_BASE));
716 P54U_WRITE(NET2280_BRG_U32, NET2280_USBIRQENB1, 0);
717 P54U_WRITE(NET2280_BRG_U32, NET2280_IRQSTAT1,
718 cpu_to_le32(NET2280_PCI_INTA_INTERRUPT));
721 P54U_WRITE(NET2280_DEV_U32, &devreg->int_enable, 0);
723 P54U_READ(NET2280_DEV_U32, &devreg->ctrl_stat);
724 reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET);
725 reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RAMBOOT);
726 reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_CLKRUN);
727 P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg);
731 reg |= cpu_to_le32(ISL38XX_CTRL_STAT_RESET);
732 P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg);
736 reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET);
737 P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg);
741 P54U_READ(NET2280_DEV_U32, &devreg->int_ident);
742 P54U_WRITE(NET2280_DEV_U32, &devreg->int_ack, reg);
744 /* finally, we can upload firmware now! */
745 remains = priv->fw->size;
746 data = priv->fw->data;
747 offset = ISL38XX_DEV_FIRMWARE_ADDR;
750 unsigned int block_len = min(remains, (unsigned int)512);
751 memcpy(buf, data, block_len);
753 err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, block_len);
755 dev_err(&priv->udev->dev, "(p54usb) firmware block "
760 P54U_WRITE(NET2280_DEV_U32, &devreg->direct_mem_base,
761 cpu_to_le32(0xc0000f00));
763 P54U_WRITE(NET2280_DEV_U32,
764 0x0020 | (unsigned long)&devreg->direct_mem_win, 0);
765 P54U_WRITE(NET2280_DEV_U32,
766 0x0020 | (unsigned long)&devreg->direct_mem_win,
769 P54U_WRITE(NET2280_DEV_U32,
770 0x0024 | (unsigned long)&devreg->direct_mem_win,
771 cpu_to_le32(block_len));
772 P54U_WRITE(NET2280_DEV_U32,
773 0x0028 | (unsigned long)&devreg->direct_mem_win,
774 cpu_to_le32(offset));
776 P54U_WRITE(NET2280_DEV_U32, &devreg->dma_addr,
777 cpu_to_le32(NET2280_EPA_FIFO_PCI_ADDR));
778 P54U_WRITE(NET2280_DEV_U32, &devreg->dma_len,
779 cpu_to_le32(block_len >> 2));
780 P54U_WRITE(NET2280_DEV_U32, &devreg->dma_ctrl,
781 cpu_to_le32(ISL38XX_DMA_MASTER_CONTROL_TRIGGER));
785 P54U_READ(NET2280_DEV_U32,
786 0x002C | (unsigned long)&devreg->direct_mem_win);
787 if (!(reg & cpu_to_le32(ISL38XX_DMA_STATUS_DONE)) ||
788 !(reg & cpu_to_le32(ISL38XX_DMA_STATUS_READY))) {
789 dev_err(&priv->udev->dev, "(p54usb) firmware DMA "
790 "transfer failed\n");
794 P54U_WRITE(NET2280_BRG_U32, NET2280_EPA_STAT,
795 cpu_to_le32(NET2280_FIFO_FLUSH));
797 remains -= block_len;
803 P54U_READ(NET2280_DEV_U32, &devreg->ctrl_stat);
804 reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET);
805 reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_CLKRUN);
806 reg |= cpu_to_le32(ISL38XX_CTRL_STAT_RAMBOOT);
807 P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg);
811 reg |= cpu_to_le32(ISL38XX_CTRL_STAT_RESET);
812 P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg);
814 reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET);
815 P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg);
819 P54U_READ(NET2280_DEV_U32, &devreg->int_ident);
820 P54U_WRITE(NET2280_DEV_U32, &devreg->int_ack, reg);
822 /* start up the firmware */
823 P54U_WRITE(NET2280_DEV_U32, &devreg->int_enable,
824 cpu_to_le32(ISL38XX_INT_IDENT_INIT));
826 P54U_WRITE(NET2280_BRG_U32, NET2280_IRQSTAT1,
827 cpu_to_le32(NET2280_PCI_INTA_INTERRUPT));
829 P54U_WRITE(NET2280_BRG_U32, NET2280_USBIRQENB1,
830 cpu_to_le32(NET2280_PCI_INTA_INTERRUPT_ENABLE |
831 NET2280_USB_INTERRUPT_ENABLE));
833 P54U_WRITE(NET2280_DEV_U32, &devreg->dev_int,
834 cpu_to_le32(ISL38XX_DEV_INT_RESET));
836 err = usb_interrupt_msg(priv->udev,
837 usb_rcvbulkpipe(priv->udev, P54U_PIPE_INT),
838 buf, sizeof(__le32), &alen, 1000);
839 if (err || alen != sizeof(__le32))
842 P54U_READ(NET2280_DEV_U32, &devreg->int_ident);
843 P54U_WRITE(NET2280_DEV_U32, &devreg->int_ack, reg);
845 if (!(reg & cpu_to_le32(ISL38XX_INT_IDENT_INIT)))
848 P54U_WRITE(NET2280_BRG_U32, NET2280_USBIRQENB1, 0);
849 P54U_WRITE(NET2280_BRG_U32, NET2280_IRQSTAT1,
850 cpu_to_le32(NET2280_PCI_INTA_INTERRUPT));
860 static int p54_find_type(struct p54u_priv *priv)
864 for (i = 0; i < __NUM_P54U_HWTYPES; i++)
865 if (p54u_fwlist[i].type == priv->hw_type)
867 if (i == __NUM_P54U_HWTYPES)
873 static int p54u_start_ops(struct p54u_priv *priv)
875 struct ieee80211_hw *dev = priv->common.hw;
878 ret = p54_parse_firmware(dev, priv->fw);
882 ret = p54_find_type(priv);
886 if (priv->common.fw_interface != p54u_fwlist[ret].intf) {
887 dev_err(&priv->udev->dev, "wrong firmware, please get "
888 "a firmware for \"%s\" and try again.\n",
889 p54u_fwlist[ret].hw);
894 ret = priv->upload_fw(dev);
898 ret = p54u_open(dev);
902 ret = p54_read_eeprom(dev);
908 ret = p54_register_common(dev, &priv->udev->dev);
919 * p54u_disconnect will do the rest of the
925 static void p54u_load_firmware_cb(const struct firmware *firmware,
928 struct p54u_priv *priv = context;
929 struct usb_device *udev = priv->udev;
932 complete(&priv->fw_wait_load);
935 err = p54u_start_ops(priv);
938 dev_err(&udev->dev, "Firmware not found.\n");
942 struct device *parent = priv->udev->dev.parent;
944 dev_err(&udev->dev, "failed to initialize device (%d)\n", err);
949 device_release_driver(&udev->dev);
951 * At this point p54u_disconnect has already freed
952 * the "priv" context. Do not use it anymore!
957 device_unlock(parent);
963 static int p54u_load_firmware(struct ieee80211_hw *dev,
964 struct usb_interface *intf)
966 struct usb_device *udev = interface_to_usbdev(intf);
967 struct p54u_priv *priv = dev->priv;
968 struct device *device = &udev->dev;
971 BUILD_BUG_ON(ARRAY_SIZE(p54u_fwlist) != __NUM_P54U_HWTYPES);
973 init_completion(&priv->fw_wait_load);
974 i = p54_find_type(priv);
978 dev_info(&priv->udev->dev, "Loading firmware file %s\n",
982 err = request_firmware_nowait(THIS_MODULE, 1, p54u_fwlist[i].fw,
983 device, GFP_KERNEL, priv,
984 p54u_load_firmware_cb);
986 dev_err(&priv->udev->dev, "(p54usb) cannot load firmware %s "
987 "(%d)!\n", p54u_fwlist[i].fw, err);
993 static int p54u_probe(struct usb_interface *intf,
994 const struct usb_device_id *id)
996 struct usb_device *udev = interface_to_usbdev(intf);
997 struct ieee80211_hw *dev;
998 struct p54u_priv *priv;
1000 unsigned int i, recognized_pipes;
1002 dev = p54_init_common(sizeof(*priv));
1005 dev_err(&udev->dev, "(p54usb) ieee80211 alloc failed\n");
1010 priv->hw_type = P54U_INVALID_HW;
1012 SET_IEEE80211_DEV(dev, &intf->dev);
1013 usb_set_intfdata(intf, dev);
1016 skb_queue_head_init(&priv->rx_queue);
1017 init_usb_anchor(&priv->submitted);
1021 /* really lazy and simple way of figuring out if we're a 3887 */
1022 /* TODO: should just stick the identification in the device table */
1023 i = intf->altsetting->desc.bNumEndpoints;
1024 recognized_pipes = 0;
1026 switch (intf->altsetting->endpoint[i].desc.bEndpointAddress) {
1027 case P54U_PIPE_DATA:
1028 case P54U_PIPE_MGMT:
1031 case P54U_PIPE_DATA | USB_DIR_IN:
1032 case P54U_PIPE_MGMT | USB_DIR_IN:
1033 case P54U_PIPE_BRG | USB_DIR_IN:
1034 case P54U_PIPE_DEV | USB_DIR_IN:
1035 case P54U_PIPE_INT | USB_DIR_IN:
1039 priv->common.open = p54u_open;
1040 priv->common.stop = p54u_stop;
1041 if (recognized_pipes < P54U_PIPE_NUMBER) {
1043 /* ISL3887 needs a full reset on resume */
1044 udev->reset_resume = 1;
1045 #endif /* CONFIG_PM */
1046 err = p54u_device_reset(dev);
1048 priv->hw_type = P54U_3887;
1049 dev->extra_tx_headroom += sizeof(struct lm87_tx_hdr);
1050 priv->common.tx_hdr_len = sizeof(struct lm87_tx_hdr);
1051 priv->common.tx = p54u_tx_lm87;
1052 priv->upload_fw = p54u_upload_firmware_3887;
1054 priv->hw_type = P54U_NET2280;
1055 dev->extra_tx_headroom += sizeof(struct net2280_tx_hdr);
1056 priv->common.tx_hdr_len = sizeof(struct net2280_tx_hdr);
1057 priv->common.tx = p54u_tx_net2280;
1058 priv->upload_fw = p54u_upload_firmware_net2280;
1060 err = p54u_load_firmware(dev, intf);
1064 static void p54u_disconnect(struct usb_interface *intf)
1066 struct ieee80211_hw *dev = usb_get_intfdata(intf);
1067 struct p54u_priv *priv;
1073 wait_for_completion(&priv->fw_wait_load);
1074 p54_unregister_common(dev);
1076 usb_put_dev(interface_to_usbdev(intf));
1077 release_firmware(priv->fw);
1078 p54_free_common(dev);
1081 static int p54u_pre_reset(struct usb_interface *intf)
1083 struct ieee80211_hw *dev = usb_get_intfdata(intf);
1092 static int p54u_resume(struct usb_interface *intf)
1094 struct ieee80211_hw *dev = usb_get_intfdata(intf);
1095 struct p54u_priv *priv;
1101 if (unlikely(!(priv->upload_fw && priv->fw)))
1104 return priv->upload_fw(dev);
1107 static int p54u_post_reset(struct usb_interface *intf)
1109 struct ieee80211_hw *dev = usb_get_intfdata(intf);
1110 struct p54u_priv *priv;
1113 err = p54u_resume(intf);
1117 /* reinitialize old device state */
1119 if (priv->common.mode != NL80211_IFTYPE_UNSPECIFIED)
1120 ieee80211_restart_hw(dev);
1127 static int p54u_suspend(struct usb_interface *intf, pm_message_t message)
1129 return p54u_pre_reset(intf);
1132 #endif /* CONFIG_PM */
1134 static struct usb_driver p54u_driver = {
1136 .id_table = p54u_table,
1137 .probe = p54u_probe,
1138 .disconnect = p54u_disconnect,
1139 .pre_reset = p54u_pre_reset,
1140 .post_reset = p54u_post_reset,
1142 .suspend = p54u_suspend,
1143 .resume = p54u_resume,
1144 .reset_resume = p54u_resume,
1145 #endif /* CONFIG_PM */
1147 .disable_hub_initiated_lpm = 1,
1150 module_usb_driver(p54u_driver);