201 lines
7.2 KiB
C
201 lines
7.2 KiB
C
/* $NetBSD: iwicvar.h,v 1.2 2003/07/08 10:06:32 itojun Exp $ */
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/*
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* Copyright (c) 1999, 2000 Dave Boyce. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _IWICVAR_H_
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#define _IWICVAR_H_
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#include <netisdn/i4b_debug.h>
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#include <netisdn/i4b_ioctl.h>
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#include <netisdn/i4b_trace.h>
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#include <netisdn/i4b_l2.h>
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#include <netisdn/i4b_l1l2.h>
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#include <netisdn/i4b_l3l4.h>
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/*---------------------------------------------------------------------------*
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* state of a B channel
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*---------------------------------------------------------------------------*/
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struct iwic_bchan {
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int channel; /* channel number */
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int offset; /* offset from iobase */
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int bprot; /* b channel protocol used */
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int state; /* transceiver state: */
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#define ST_IDLE 0x00 /* channel idle */
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#define ST_TX_ACTIVE 0x01 /* tx running */
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unsigned int sc_trace_bcount;
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/* receive data from ISDN */
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struct ifqueue rx_queue;/* receiver queue */
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int rxcount; /* rx statistics counter */
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struct mbuf *in_mbuf; /* rx input buffer */
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u_char *in_cbptr; /* curr buffer pointer */
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int in_len; /* rx input buffer len */
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/* transmit data to ISDN */
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struct ifqueue tx_queue;/* transmitter queue */
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int txcount; /* tx statistics counter */
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struct mbuf *out_mbuf_head; /* first mbuf in possible chain */
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struct mbuf *out_mbuf_cur; /* current mbuf in possbl chain */
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unsigned char *out_mbuf_cur_ptr; /* data pointer into mbuf */
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int out_mbuf_cur_len; /* remaining bytes in mbuf */
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/* linktab */
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isdn_link_t iwic_isdn_linktab;
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const struct isdn_l4_driver_functions *l4_driver;
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void *l4_driver_softc;
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};
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/*---------------------------------------------------------------------------*
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* state of a D channel
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*---------------------------------------------------------------------------*/
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struct iwic_dchan {
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int enabled;
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int trace_count;
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struct mbuf *ibuf;
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u_char *ibuf_ptr; /* Input buffer pointer */
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int ibuf_len; /* Current length of input buffer */
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int ibuf_max_len; /* Max length in input buffer */
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int rx_count;
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int tx_ready; /* Can send next 64 bytes of data. */
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int tx_count;
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struct mbuf *obuf;
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int free_obuf;
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u_char *obuf_ptr;
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int obuf_len;
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struct mbuf *obuf2;
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int free_obuf2;
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};
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/*---------------------------------------------------------------------------*
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* state of one iwic unit
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*---------------------------------------------------------------------------*/
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struct iwic_softc {
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struct device sc_dev;
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const char *sc_cardname;
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bus_addr_t sc_iobase;
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bus_size_t sc_iosize;
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bus_space_handle_t sc_io_bh;
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bus_space_tag_t sc_io_bt;
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struct iwic_dchan sc_dchan;
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struct iwic_bchan sc_bchan[2];
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void *sc_ih; /* interrupt handler */
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pci_chipset_tag_t sc_pc;
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void *sc_l3token; /* pointer to registered L3 instance */
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struct l2_softc sc_l2; /* D-channel variables */
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int sc_I430state;
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int sc_I430T3;
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int sc_trace;
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};
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/*---------------------------------------------------------------------------*
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* rd/wr register/fifo macros
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*---------------------------------------------------------------------------*/
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#include <machine/bus.h>
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#define IWIC_READ(sc,reg) bus_space_read_1((sc)->sc_io_bt,(sc)->sc_io_bh,(reg))
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#define IWIC_WRITE(sc,reg,val) bus_space_write_1((sc)->sc_io_bt,(sc)->sc_io_bh,(reg),(val))
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#define IWIC_WRDFIFO(sc,p,l) bus_space_write_multi_1((sc)->sc_io_bt,(sc)->sc_io_bh,D_XFIFO,(p),(l))
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#define IWIC_RDDFIFO(sc,p,l) bus_space_read_multi_1((sc)->sc_io_bt,(sc)->sc_io_bh,D_RFIFO,(p),(l))
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#define IWIC_WRBFIFO(sc,b,p,l) bus_space_write_multi_1((sc)->sc_io_bt,(sc)->sc_io_bh,(b)->offset + B_XFIFO,(p),(l))
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#define IWIC_RDBFIFO(sc,b,p,l) bus_space_read_multi_1((sc)->sc_io_bt,(sc)->sc_io_bh,(b)->offset + B_RFIFO,(p),(l))
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/*---------------------------------------------------------------------------*
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* possible I.430 states
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*---------------------------------------------------------------------------*/
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enum I430states {
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ST_F3N, /* F3 Deactivated, no clock */
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ST_F3, /* F3 Deactivated */
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ST_F4, /* F4 Awaiting Signal */
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ST_F5, /* F5 Identifying Input */
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ST_F6, /* F6 Synchronized */
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ST_F7, /* F7 Activated */
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ST_F8, /* F8 Lost Framing */
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ST_ILL, /* Illegal State */
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N_STATES
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};
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/*---------------------------------------------------------------------------*
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* possible I.430 events
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*---------------------------------------------------------------------------*/
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enum I430events {
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EV_PHAR, /* PH ACTIVATE REQUEST */
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EV_CE, /* Clock enabled */
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EV_T3, /* Timer 3 expired */
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EV_INFO0, /* receiving INFO0 */
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EV_RSY, /* receiving any signal */
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EV_INFO2, /* receiving INFO2 */
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EV_INFO48, /* receiving INFO4 pri 8/9 */
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EV_INFO410, /* receiving INFO4 pri 10/11 */
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EV_DR, /* Deactivate Request */
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EV_PU, /* Power UP */
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EV_DIS, /* Disconnected (only 2085) */
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EV_EI, /* Error Indication */
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EV_ILL, /* Illegal Event */
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N_EVENTS
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};
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/*---------------------------------------------------------------------------*
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* available commands
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*---------------------------------------------------------------------------*/
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enum I430commands {
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CMD_ECK, /* Enable clock */
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CMD_TIM, /* Timing */
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CMD_RT, /* Reset */
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CMD_AR8, /* Activation request pri 8 */
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CMD_AR10, /* Activation request pri 10 */
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CMD_DIU, /* Deactivate Indication Upstream */
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CMD_ILL /* Illegal command */
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};
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extern void iwic_init(struct iwic_softc *);
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extern void iwic_next_state(struct iwic_softc *, int);
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extern void iwic_dchan_init(struct iwic_softc *);
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extern void iwic_dchan_xirq(struct iwic_softc *);
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extern void iwic_dchan_xfer_irq(struct iwic_softc *, int);
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extern void iwic_dchan_disable(struct iwic_softc *);
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extern int iwic_dchan_data_req(struct iwic_softc *, struct mbuf *, int);
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extern void iwic_dchan_transmit(struct iwic_softc *);
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char *iwic_printstate(struct iwic_softc *);
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void iwic_init_linktab(struct iwic_softc *);
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void iwic_bchan_xirq(struct iwic_softc *, int);
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void iwic_bchannel_setup(isdn_layer1token, int, int, int);
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#endif /* _IWICVAR_H_ */
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