diff options
Diffstat (limited to 'drivers/staging/ti-st/st_core.h')
| -rw-r--r-- | drivers/staging/ti-st/st_core.h | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/drivers/staging/ti-st/st_core.h b/drivers/staging/ti-st/st_core.h new file mode 100644 index 000000000000..f271c88a8087 --- /dev/null +++ b/drivers/staging/ti-st/st_core.h @@ -0,0 +1,98 @@ +/* + * Shared Transport Core header file + * + * Copyright (C) 2009 Texas Instruments + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#ifndef ST_CORE_H +#define ST_CORE_H + +#include <linux/skbuff.h> +#include "st.h" + +/* states of protocol list */ +#define ST_NOTEMPTY 1 +#define ST_EMPTY 0 + +/* + * possible st_states + */ +#define ST_INITIALIZING 1 +#define ST_REG_IN_PROGRESS 2 +#define ST_REG_PENDING 3 +#define ST_WAITING_FOR_RESP 4 + +/* + * local data required for ST/KIM/ST-HCI-LL + */ +struct st_data_s { + unsigned long st_state; +/* + * an instance of tty_struct & ldisc ops to move around + */ + struct tty_struct *tty; + struct tty_ldisc_ops *ldisc_ops; +/* + * the tx skb - + * if the skb is already dequeued and the tty failed to write the same + * maintain the skb to write in the next transaction + */ + struct sk_buff *tx_skb; +#define ST_TX_SENDING 1 +#define ST_TX_WAKEUP 2 + unsigned long tx_state; +/* + * list of protocol registered + */ + struct st_proto_s *list[ST_MAX]; +/* + * lock + */ + unsigned long rx_state; + unsigned long rx_count; + struct sk_buff *rx_skb; + struct sk_buff_head txq, tx_waitq; + spinlock_t lock; /* ST LL state lock */ + unsigned char protos_registered; + unsigned long ll_state; /* ST LL power state */ +}; + +/* point this to tty->driver->write or tty->ops->write + * depending upon the kernel version + */ +int st_int_write(struct st_data_s*, const unsigned char*, int); +/* internal write function, passed onto protocol drivers + * via the write function ptr of protocol struct + */ +long st_write(struct sk_buff *); +/* function to be called from ST-LL + */ +void st_ll_send_frame(enum proto_type, struct sk_buff *); +/* internal wake up function */ +void st_tx_wakeup(struct st_data_s *st_data); + +int st_core_init(struct st_data_s **); +void st_core_exit(struct st_data_s *); +void st_kim_ref(struct st_data_s **); + +#define GPS_STUB_TEST +#ifdef GPS_STUB_TEST +int gps_chrdrv_stub_write(const unsigned char*, int); +void gps_chrdrv_stub_init(void); +#endif + +#endif /*ST_CORE_H */ |