92 lines
2.2 KiB
C
92 lines
2.2 KiB
C
/*
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* Shared Transport Header file
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* To be included by the protocol stack drivers for
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* Texas Instruments BT,FM and GPS combo chip drivers
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*
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* Copyright (C) 2009 Texas Instruments
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#ifndef ST_H
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#define ST_H
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#include <linux/skbuff.h>
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/*
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* st.h
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*/
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/* TODO:
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* Move the following to tty.h upon acceptance
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*/
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#define N_TI_WL 20 /* Ldisc for TI's WL BT, FM, GPS combo chips */
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/* some gpios have active high, others like fm have
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* active low
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*/
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enum kim_gpio_state {
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KIM_GPIO_INACTIVE,
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KIM_GPIO_ACTIVE,
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};
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/*
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* the list of protocols on chip
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*/
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enum proto_type {
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ST_BT,
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ST_FM,
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ST_GPS,
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ST_MAX,
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};
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enum {
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ST_ERR_FAILURE = -1, /* check struct */
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ST_SUCCESS,
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ST_ERR_PENDING = -5, /* to call reg_complete_cb */
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ST_ERR_ALREADY, /* already registered */
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ST_ERR_INPROGRESS,
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ST_ERR_NOPROTO, /* protocol not supported */
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};
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/* per protocol structure
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* for BT/FM and GPS
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*/
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struct st_proto_s {
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enum proto_type type;
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/*
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* to be called by ST when data arrives
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*/
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long (*recv) (struct sk_buff *);
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/*
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* for future use, logic now to be in ST
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*/
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unsigned char (*match_packet) (const unsigned char *data);
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/*
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* subsequent registration return PENDING,
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* signalled complete by this callback function
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*/
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void (*reg_complete_cb) (char data);
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/*
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* write function, sent in as NULL and to be returned to
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* protocol drivers
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*/
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long (*write) (struct sk_buff *skb);
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};
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extern long st_register(struct st_proto_s *);
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extern long st_unregister(enum proto_type);
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extern struct platform_device *st_get_plat_device(void);
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#endif /* ST_H */
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