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/*
* Shared Transport Header file
* To be included by the protocol stack drivers for
* Texas Instruments BT,FM and GPS combo chip drivers
*
* 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_H
#define ST_H
#include <linux/skbuff.h>
/*
* st.h
*/
/* TODO:
* Move the following to tty.h upon acceptance
*/
#define N_TI_WL 20 /* Ldisc for TI's WL BT, FM, GPS combo chips */
/* some gpios have active high, others like fm have
* active low
*/
enum kim_gpio_state {
KIM_GPIO_INACTIVE,
KIM_GPIO_ACTIVE,
};
/*
* the list of protocols on chip
*/
enum proto_type {
ST_BT,
ST_FM,
ST_GPS,
ST_MAX,
};
enum {
ST_ERR_FAILURE = -1, /* check struct */
ST_SUCCESS,
ST_ERR_PENDING = -5, /* to call reg_complete_cb */
ST_ERR_ALREADY, /* already registered */
ST_ERR_INPROGRESS,
ST_ERR_NOPROTO, /* protocol not supported */
};
/* per protocol structure
* for BT/FM and GPS
*/
struct st_proto_s {
enum proto_type type;
/*
* to be called by ST when data arrives
*/
long (*recv) (struct sk_buff *);
/*
* for future use, logic now to be in ST
*/
unsigned char (*match_packet) (const unsigned char *data);
/*
* subsequent registration return PENDING,
* signalled complete by this callback function
*/
void (*reg_complete_cb) (char data);
/*
* write function, sent in as NULL and to be returned to
* protocol drivers
*/
long (*write) (struct sk_buff *skb);
};
extern long st_register(struct st_proto_s *new_proto);
extern long st_unregister(enum proto_type type);
#endif /* ST_H */
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