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/*
* Copyright (c) 1999, 2000 Dave Boyce. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*---------------------------------------------------------------------------
*
* i4b_iwic - isdn4bsd Winbond W6692 driver
* ----------------------------------------
*
* $FreeBSD$
*
* last edit-date: [Sun Jan 21 11:08:44 2001]
*
*---------------------------------------------------------------------------*/
#ifndef _I4B_IWIC_H_
#define _I4B_IWIC_H_
#include <i4b/layer1/iwic/i4b_iwic_ext.h>
/*---------------------------------------------------------------------------*
* PCI resources used
*---------------------------------------------------------------------------*/
#define INFO_IO_BASES 2
struct i4b_info {
struct resource * io_base[INFO_IO_BASES];
int io_rid [INFO_IO_BASES];
struct resource * irq;
int irq_rid;
struct resource * mem;
int mem_rid;
};
/*---------------------------------------------------------------------------*
* state of a B channel
*---------------------------------------------------------------------------*/
struct iwic_bchan
{
int unit; /* unit number */
int channel; /* channel number */
int offset; /* offset from iobase */
int bprot; /* b channel protocol used */
int state; /* transceiver state: */
#define ST_IDLE 0x00 /* channel idle */
#define ST_TX_ACTIVE 0x01 /* tx running */
int sc_trace_bcount;
/* receive data from ISDN */
struct ifqueue rx_queue; /* receiver queue */
int rxcount; /* rx statistics counter*/
struct mbuf *in_mbuf; /* rx input buffer */
u_char *in_cbptr; /* curr buffer pointer */
int in_len; /* rx input buffer len */
/* transmit data to ISDN */
struct ifqueue tx_queue; /* transmitter queue */
int txcount; /* tx statistics counter */
struct mbuf *out_mbuf_head; /* first mbuf in possible chain */
struct mbuf *out_mbuf_cur; /* current mbuf in possbl chain */
unsigned char *out_mbuf_cur_ptr; /* data pointer into mbuf */
int out_mbuf_cur_len; /* remaining bytes in mbuf */
/* linktab */
isdn_link_t iwic_isdn_linktab;
drvr_link_t *iwic_drvr_linktab;
};
/*---------------------------------------------------------------------------*
* state of a D channel
*---------------------------------------------------------------------------*/
struct iwic_dchan
{
int enabled;
int trace_count;
struct mbuf *ibuf;
u_char *ibuf_ptr; /* Input buffer pointer */
int ibuf_len; /* Current length of input buffer */
int ibuf_max_len; /* Max length in input buffer */
int rx_count;
int tx_ready; /* Can send next 64 bytes of data. */
int tx_count;
struct mbuf *obuf;
int free_obuf;
u_char *obuf_ptr;
int obuf_len;
struct mbuf *obuf2;
int free_obuf2;
};
/*---------------------------------------------------------------------------*
* state of one iwic unit
*---------------------------------------------------------------------------*/
struct iwic_softc
{
int sc_unit;
u_int32_t sc_iobase;
int sc_trace;
int sc_cardtyp;
int sc_I430state;
int sc_I430T3;
int enabled;
struct iwic_dchan sc_dchan;
struct iwic_bchan sc_bchan[2];
struct i4b_info sc_resources;
};
/*---------------------------------------------------------------------------*
* rd/wr register/fifo macros
*---------------------------------------------------------------------------*/
#define IWIC_READ(sc,reg) (inb ((sc)->sc_iobase + (u_int32_t)(reg)))
#define IWIC_WRITE(sc,reg,val) (outb ((sc)->sc_iobase + (u_int32_t)(reg), (val)))
#define IWIC_WRDFIFO(sc,p,l) (outsb ((sc)->sc_iobase + D_XFIFO, (p), (l)))
#define IWIC_RDDFIFO(sc,p,l) (insb ((sc)->sc_iobase + D_RFIFO, (p), (l)))
#define IWIC_WRBFIFO(sc,b,p,l) (outsb (((sc)->sc_iobase + (b)->offset + B_XFIFO), (p), (l)))
#define IWIC_RDBFIFO(sc,b,p,l) (insb (((sc)->sc_iobase + (b)->offset + B_RFIFO), (p), (l)))
/*---------------------------------------------------------------------------*
* possible I.430 states
*---------------------------------------------------------------------------*/
enum I430states
{
ST_F3N, /* F3 Deactivated, no clock */
ST_F3, /* F3 Deactivated */
ST_F4, /* F4 Awaiting Signal */
ST_F5, /* F5 Identifying Input */
ST_F6, /* F6 Synchronized */
ST_F7, /* F7 Activated */
ST_F8, /* F8 Lost Framing */
ST_ILL, /* Illegal State */
N_STATES
};
/*---------------------------------------------------------------------------*
* possible I.430 events
*---------------------------------------------------------------------------*/
enum I430events
{
EV_PHAR, /* PH ACTIVATE REQUEST */
EV_CE, /* Clock enabled */
EV_T3, /* Timer 3 expired */
EV_INFO0, /* receiving INFO0 */
EV_RSY, /* receiving any signal */
EV_INFO2, /* receiving INFO2 */
EV_INFO48, /* receiving INFO4 pri 8/9 */
EV_INFO410, /* receiving INFO4 pri 10/11 */
EV_DR, /* Deactivate Request */
EV_PU, /* Power UP */
EV_DIS, /* Disconnected (only 2085) */
EV_EI, /* Error Indication */
EV_ILL, /* Illegal Event */
N_EVENTS
};
/*---------------------------------------------------------------------------*
* available commands
*---------------------------------------------------------------------------*/
enum I430commands
{
CMD_ECK, /* Enable clock */
CMD_TIM, /* Timing */
CMD_RT, /* Reset */
CMD_AR8, /* Activation request pri 8 */
CMD_AR10, /* Activation request pri 10 */
CMD_DIU, /* Deactivate Indication Upstream */
CMD_ILL /* Illegal command */
};
extern struct iwic_softc iwic_sc[];
#define iwic_find_sc(unit) (&iwic_sc[(unit)])
extern void iwic_init(struct iwic_softc *);
extern void iwic_next_state(struct iwic_softc *, int);
extern void iwic_dchan_init(struct iwic_softc *);
extern void iwic_dchan_xirq(struct iwic_softc *);
extern void iwic_dchan_xfer_irq(struct iwic_softc *, int);
extern void iwic_dchan_disable(struct iwic_softc *sc);
extern int iwic_dchan_data_req(struct iwic_softc *sc, struct mbuf *m, int freeflag);
extern void iwic_dchan_transmit(struct iwic_softc *sc);
char *iwic_printstate(struct iwic_softc *sc);
void iwic_init_linktab(struct iwic_softc *sc);
void iwic_bchan_xirq(struct iwic_softc *, int);
void iwic_bchannel_setup(int unit, int h_chan, int bprot, int activate);
#endif /* _I4B_IWIC_H_ */
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