diff options
Diffstat (limited to 'include/linux/ti_wilink_st.h')
| -rw-r--r-- | include/linux/ti_wilink_st.h | 76 |
1 files changed, 49 insertions, 27 deletions
diff --git a/include/linux/ti_wilink_st.h b/include/linux/ti_wilink_st.h index 4c7be2263011..7071ec5d0118 100644 --- a/include/linux/ti_wilink_st.h +++ b/include/linux/ti_wilink_st.h @@ -26,15 +26,6 @@ #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. */ @@ -42,7 +33,7 @@ enum proto_type { ST_BT, ST_FM, ST_GPS, - ST_MAX, + ST_MAX_CHANNELS = 16, }; /** @@ -62,6 +53,17 @@ enum proto_type { * @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; @@ -70,10 +72,17 @@ struct st_proto_s { 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 *); /* @@ -114,6 +123,7 @@ extern long st_unregister(enum proto_type); * @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 @@ -135,10 +145,11 @@ struct st_data_s { #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; @@ -146,6 +157,11 @@ struct st_data_s { 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 @@ -186,8 +202,9 @@ void gps_chrdrv_stub_init(void); /* 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)) @@ -210,6 +227,7 @@ struct chip_version { 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. @@ -225,14 +243,11 @@ struct chip_version { * 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. * @@ -243,14 +258,16 @@ struct kim_data_s { 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; }; /** @@ -262,7 +279,6 @@ long st_kim_start(void *); 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 *); @@ -338,12 +354,8 @@ struct hci_command { /* 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 @@ -397,4 +409,14 @@ struct gps_event_hdr { 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 */ |