#ifndef TI_WILINK_ST_H
#define TI_WILINK_ST_H
-/**
- * enum kim_gpio_state - Few protocols such as FM have ACTIVE LOW
- * gpio states for their chip/core enable gpios
- */
-enum kim_gpio_state {
- KIM_GPIO_INACTIVE,
- KIM_GPIO_ACTIVE,
-};
-
/**
* enum proto-type - The protocol on WiLink chips which share a
* common physical interface like UART.
ST_BT,
ST_FM,
ST_GPS,
- ST_MAX,
+ ST_MAX_CHANNELS = 16,
};
/**
* @priv_data: privdate data holder for the protocol drivers, sent
* from the protocol drivers during registration, and sent back on
* reg_complete_cb and recv.
+ * @chnl_id: channel id the protocol driver is interested in, the channel
+ * id is nothing but the 1st byte of the packet in UART frame.
+ * @max_frame_size: size of the largest frame the protocol can receive.
+ * @hdr_len: length of the header structure of the protocol.
+ * @offset_len_in_hdr: this provides the offset of the length field in the
+ * header structure of the protocol header, to assist ST to know
+ * how much to receive, if the data is split across UART frames.
+ * @len_size: whether the length field inside the header is 2 bytes
+ * or 1 byte.
+ * @reserve: the number of bytes ST needs to reserve in the skb being
+ * prepared for the protocol driver.
*/
struct st_proto_s {
enum proto_type type;
void (*reg_complete_cb) (void *, char data);
long (*write) (struct sk_buff *skb);
void *priv_data;
+
+ unsigned char chnl_id;
+ unsigned short max_frame_size;
+ unsigned char hdr_len;
+ unsigned char offset_len_in_hdr;
+ unsigned char len_size;
+ unsigned char reserve;
};
extern long st_register(struct st_proto_s *);
-extern long st_unregister(enum proto_type);
+extern long st_unregister(struct st_proto_s *);
/*
* @rx_skb: the skb where all data for a protocol gets accumulated,
* since tty might not call receive when a complete event packet
* is received, the states, count and the skb needs to be maintained.
+ * @rx_chnl: the channel ID for which the data is getting accumalated for.
* @txq: the list of skbs which needs to be sent onto the TTY.
* @tx_waitq: if the chip is not in AWAKE state, the skbs needs to be queued
* up in here, PM(WAKEUP_IND) data needs to be sent and then the skbs
#define ST_TX_SENDING 1
#define ST_TX_WAKEUP 2
unsigned long tx_state;
- struct st_proto_s *list[ST_MAX];
+ struct st_proto_s *list[ST_MAX_CHANNELS];
unsigned long rx_state;
unsigned long rx_count;
struct sk_buff *rx_skb;
+ unsigned char rx_chnl;
struct sk_buff_head txq, tx_waitq;
spinlock_t lock;
unsigned char protos_registered;
void *kim_data;
};
+/*
+ * wrapper around tty->ops->write_room to check
+ * availability during firmware download
+ */
+int st_get_uart_wr_room(struct st_data_s *st_gdata);
/**
* st_int_write -
* point this to tty->driver->write or tty->ops->write
/* time in msec to wait for
* line discipline to be installed
*/
-#define LDISC_TIME 500
-#define CMD_RESP_TIME 500
+#define LDISC_TIME 1000
+#define CMD_RESP_TIME 800
+#define CMD_WR_TIME 5000
#define MAKEWORD(a, b) ((unsigned short)(((unsigned char)(a)) \
| ((unsigned short)((unsigned char)(b))) << 8))
unsigned short maj_ver;
};
+#define UART_DEV_NAME_LEN 32
/**
* struct kim_data_s - the KIM internal data, embedded as the
* platform's drv data. One for each ST device in the system.
* the ldisc was properly installed.
* @resp_buffer: data buffer for the .bts fw file name.
* @fw_entry: firmware class struct to request/release the fw.
- * @gpios: the list of core/chip enable gpios for BT, FM and GPS cores.
* @rx_state: the rx state for kim's receive func during fw download.
* @rx_count: the rx count for the kim's receive func during fw download.
* @rx_skb: all of fw data might not come at once, and hence data storage for
* whole of the fw response, only HCI_EVENTs and hence diff from ST's
* response.
- * @rfkill: rfkill data for each of the cores to be registered with rfkill.
- * @rf_protos: proto types of the data registered with rfkill sub-system.
* @core_data: ST core's data, which mainly is the tty's disc_data
* @version: chip version available via a sysfs entry.
*
struct completion kim_rcvd, ldisc_installed;
char resp_buffer[30];
const struct firmware *fw_entry;
- long gpios[ST_MAX];
+ long nshutdown;
unsigned long rx_state;
unsigned long rx_count;
struct sk_buff *rx_skb;
- struct rfkill *rfkill[ST_MAX];
- enum proto_type rf_protos[ST_MAX];
struct st_data_s *core_data;
struct chip_version version;
+ unsigned char ldisc_install;
+ unsigned char dev_name[UART_DEV_NAME_LEN];
+ unsigned char flow_cntrl;
+ unsigned long baud_rate;
};
/**
long st_kim_stop(void *);
void st_kim_recv(void *, const unsigned char *, long count);
-void st_kim_chip_toggle(enum proto_type, enum kim_gpio_state);
void st_kim_complete(void *);
void kim_st_list_protocols(struct st_data_s *, void *);
/* ST LL receiver states */
#define ST_W4_PACKET_TYPE 0
-#define ST_BT_W4_EVENT_HDR 1
-#define ST_BT_W4_ACL_HDR 2
-#define ST_BT_W4_SCO_HDR 3
-#define ST_BT_W4_DATA 4
-#define ST_FM_W4_EVENT_HDR 5
-#define ST_GPS_W4_EVENT_HDR 6
+#define ST_W4_HEADER 1
+#define ST_W4_DATA 2
/* ST LL state machines */
#define ST_LL_ASLEEP 0
u16 plen;
} __attribute__ ((packed));
+/* platform data */
+struct ti_st_plat_data {
+ long nshutdown_gpio;
+ unsigned char dev_name[UART_DEV_NAME_LEN]; /* uart name */
+ unsigned char flow_cntrl; /* flow control flag */
+ unsigned long baud_rate;
+ int (*suspend)(struct platform_device *, pm_message_t);
+ int (*resume)(struct platform_device *);
+};
+
#endif /* TI_WILINK_ST_H */
projects / firefly-linux-kernel-4.4.55.git / blobdiff