409 lines
12 KiB
C
409 lines
12 KiB
C
/*
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* Copyright (c) 1996 Andrew Gordon. All rights reserved.
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*
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* Copyright (c) 1997, 2001 Hellmuth Michaelis. 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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*
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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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* 3. Neither the name of the author nor the names of any co-contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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* 4. Altered versions must be plainly marked as such, and must not be
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* misrepresented as being the original software and/or documentation.
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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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*---------------------------------------------------------------------------
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*
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* i4b_avm_a1.c - AVM A1/Fritz passive card driver for isdn4bsd
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* ------------------------------------------------------------
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* last edit-date: [Wed Jan 24 09:25:23 2001]
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*
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*---------------------------------------------------------------------------*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "opt_i4b.h"
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#if defined(AVM_A1)
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/socket.h>
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#include <net/if.h>
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#include <machine/i4b_ioctl.h>
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#include <machine/i4b_trace.h>
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#include <i4b/layer1/i4b_l1.h>
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#include <i4b/layer1/isic/i4b_isic.h>
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#include <i4b/layer1/isic/i4b_hscx.h>
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/*---------------------------------------------------------------------------*
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* AVM A1 and AVM Fritz! Card special registers
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*---------------------------------------------------------------------------*/
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#define AVM_CONF_REG 0x1800 /* base offset for config register */
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#define AVM_CONF_IRQ 0x1801 /* base offset for IRQ register */
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/* config register write */
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#define AVM_CONF_WR_RESET 0x01 /* 1 = RESET ISAC and HSCX */
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#define AVM_CONF_WR_CCL 0x02 /* 1 = clear counter low nibble */
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#define AVM_CONF_WR_CCH 0x04 /* 1 = clear counter high nibble */
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#define AVM_CONF_WR_IRQEN 0x08 /* 1 = enable IRQ */
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#define AVM_CONF_WR_TEST 0x10 /* test bit */
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/* config register read */
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#define AVM_CONF_RD_IIRQ 0x01 /* 0 = ISAC IRQ active */
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#define AVM_CONF_RD_HIRQ 0x02 /* 0 = HSCX IRQ active */
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#define AVM_CONF_RD_CIRQ 0x04 /* 0 = counter IRQ active */
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#define AVM_CONF_RD_ZER1 0x08 /* unused, always read 0 */
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#define AVM_CONF_RD_TEST 0x10 /* test bit read back */
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#define AVM_CONF_RD_ZER2 0x20 /* unused, always read 0 */
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#define AVM_ISAC_R_OFFS (0x1400-0x20)
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#define AVM_HSCXA_R_OFFS (0x400-0x20)
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#define AVM_HSCXB_R_OFFS (0xc00-0x20)
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#define AVM_ISAC_F_OFFS (0x1400-0x20-0x3e0)
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#define AVM_HSCXA_F_OFFS (0x400-0x20-0x3e0)
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#define AVM_HSCXB_F_OFFS (0xc00-0x20-0x3e0)
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/*---------------------------------------------------------------------------*
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* AVM read fifo routine
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*---------------------------------------------------------------------------*/
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static void
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avma1_read_fifo(struct l1_softc *sc, int what, void *buf, size_t size)
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{
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bus_space_tag_t t = rman_get_bustag(sc->sc_resources.io_base[what+4]);
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bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.io_base[what+4]);
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bus_space_read_multi_1(t, h, 0, buf, size);
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}
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/*---------------------------------------------------------------------------*
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* AVM write fifo routine
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*---------------------------------------------------------------------------*/
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static void
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avma1_write_fifo(struct l1_softc *sc, int what, void *buf, size_t size)
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{
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bus_space_tag_t t = rman_get_bustag(sc->sc_resources.io_base[what+4]);
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bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.io_base[what+4]);
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bus_space_write_multi_1(t, h, 0, (u_int8_t*)buf, size);
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}
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/*---------------------------------------------------------------------------*
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* AVM write register routine
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*---------------------------------------------------------------------------*/
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static void
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avma1_write_reg(struct l1_softc *sc, int what, bus_size_t offs, u_int8_t data)
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{
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bus_space_tag_t t = rman_get_bustag(sc->sc_resources.io_base[what+1]);
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bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.io_base[what+1]);
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bus_space_write_1(t, h, offs, data);
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}
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/*---------------------------------------------------------------------------*
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* AVM read register routine
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*---------------------------------------------------------------------------*/
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static u_int8_t
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avma1_read_reg(struct l1_softc *sc, int what, bus_size_t offs)
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{
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bus_space_tag_t t = rman_get_bustag(sc->sc_resources.io_base[what+1]);
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bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.io_base[what+1]);
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return bus_space_read_1(t, h, offs);
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}
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/*---------------------------------------------------------------------------*
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* allocate an io port
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*---------------------------------------------------------------------------*/
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static int
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isic_alloc_port(device_t dev, int rid, u_int base, u_int len)
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{
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size_t unit = device_get_unit(dev);
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struct l1_softc *sc = &l1_sc[unit];
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sc->sc_resources.io_rid[rid] = rid;
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bus_set_resource(dev, SYS_RES_IOPORT, rid, base, len);
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if(!(sc->sc_resources.io_base[rid] =
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bus_alloc_resource_any(dev, SYS_RES_IOPORT,
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&sc->sc_resources.io_rid[rid],
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RF_ACTIVE)))
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{
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printf("isic%d: Error, failed to reserve io #%d!\n", unit, rid);
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isic_detach_common(dev);
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return(ENXIO);
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}
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return(0);
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}
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/*---------------------------------------------------------------------------*
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* isic_probe_avma1 - probe for AVM A1 and compatibles
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*---------------------------------------------------------------------------*/
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int
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isic_probe_avma1(device_t dev)
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{
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size_t unit = device_get_unit(dev); /* get unit */
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struct l1_softc *sc = 0; /* pointer to softc */
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void *ih = 0; /* dummy */
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bus_space_tag_t t; /* bus things */
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bus_space_handle_t h;
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u_char savebyte;
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u_char byte;
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/* check max unit range */
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if(unit >= ISIC_MAXUNIT)
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{
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printf("isic%d: Error, unit %d >= ISIC_MAXUNIT for AVM A1/Fritz!\n",
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unit, unit);
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return(ENXIO);
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}
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sc = &l1_sc[unit]; /* get pointer to softc */
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sc->sc_unit = unit; /* set unit */
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/* see if an io base was supplied */
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if(!(sc->sc_resources.io_base[0] =
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bus_alloc_resource_any(dev, SYS_RES_IOPORT,
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&sc->sc_resources.io_rid[0],
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RF_ACTIVE)))
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{
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printf("isic%d: Could not get iobase for AVM A1/Fritz!\n",
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unit);
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return(ENXIO);
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}
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/* set io base */
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sc->sc_port = rman_get_start(sc->sc_resources.io_base[0]);
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/* release io base */
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bus_release_resource(dev, SYS_RES_IOPORT, sc->sc_resources.io_rid[0],
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sc->sc_resources.io_base[0]);
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switch(sc->sc_port)
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{
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case 0x200:
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case 0x240:
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case 0x300:
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case 0x340:
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break;
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default:
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printf("isic%d: Error, invalid iobase 0x%x specified for AVM A1/Fritz!\n",
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unit, sc->sc_port);
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return(ENXIO);
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break;
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}
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if(isic_alloc_port(dev, 0, sc->sc_port+AVM_CONF_REG, 0x20))
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return(ENXIO);
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if(isic_alloc_port(dev, 1, sc->sc_port+AVM_ISAC_R_OFFS, 0x20))
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return(ENXIO);
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if(isic_alloc_port(dev, 2, sc->sc_port+AVM_HSCXA_R_OFFS, 0x20))
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return(ENXIO);
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if(isic_alloc_port(dev, 3, sc->sc_port+AVM_HSCXB_R_OFFS, 0x20))
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return(ENXIO);
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if(isic_alloc_port(dev, 4, sc->sc_port+AVM_ISAC_F_OFFS, 0x20))
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return(ENXIO);
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if(isic_alloc_port(dev, 5, sc->sc_port+AVM_HSCXA_F_OFFS, 0x20))
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return(ENXIO);
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if(isic_alloc_port(dev, 6, sc->sc_port+AVM_HSCXB_F_OFFS, 0x20))
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return(ENXIO);
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/* get our irq */
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if(!(sc->sc_resources.irq =
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bus_alloc_resource_any(dev, SYS_RES_IRQ,
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&sc->sc_resources.irq_rid, RF_ACTIVE)))
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{
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printf("isic%d: Could not get an irq for AVM A1/Fritz!\n",unit);
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isic_detach_common(dev);
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return ENXIO;
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}
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/* get the irq number */
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sc->sc_irq = rman_get_start(sc->sc_resources.irq);
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/* register interupt routine */
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bus_setup_intr(dev, sc->sc_resources.irq, INTR_TYPE_NET,
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(void(*)(void *))(isicintr),
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sc, &ih);
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/* check IRQ validity */
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switch(sc->sc_irq)
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{
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case 3:
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case 4:
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case 5:
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case 6:
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case 7:
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case 8:
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case 10:
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case 11:
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case 12:
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case 13:
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case 14:
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case 15:
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break;
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default:
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printf("isic%d: Error, invalid IRQ [%d] specified for AVM A1/Fritz!\n",
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unit, sc->sc_irq);
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isic_detach_common(dev);
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return(ENXIO);
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break;
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}
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sc->clearirq = NULL;
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sc->readreg = avma1_read_reg;
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sc->writereg = avma1_write_reg;
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sc->readfifo = avma1_read_fifo;
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sc->writefifo = avma1_write_fifo;
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/* setup card type */
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sc->sc_cardtyp = CARD_TYPEP_AVMA1;
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/* setup IOM bus type */
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sc->sc_bustyp = BUS_TYPE_IOM2;
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sc->sc_ipac = 0;
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sc->sc_bfifolen = HSCX_FIFO_LEN;
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/*
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* Read HSCX A/B VSTR.
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* Expected value for AVM A1 is 0x04 or 0x05 and for the
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* AVM Fritz!Card is 0x05 in the least significant bits.
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*/
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if( (((HSCX_READ(0, H_VSTR) & 0xf) != 0x5) &&
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((HSCX_READ(0, H_VSTR) & 0xf) != 0x4)) ||
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(((HSCX_READ(1, H_VSTR) & 0xf) != 0x5) &&
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((HSCX_READ(1, H_VSTR) & 0xf) != 0x4)) )
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{
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printf("isic%d: HSCX VSTR test failed for AVM A1/Fritz\n",
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unit);
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printf("isic%d: HSC0: VSTR: %#x\n",
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unit, HSCX_READ(0, H_VSTR));
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printf("isic%d: HSC1: VSTR: %#x\n",
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unit, HSCX_READ(1, H_VSTR));
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return(ENXIO);
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}
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/* AVM A1 or Fritz! control register bits: */
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/* read write */
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/* 0x01 hscx irq* RESET */
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/* 0x02 isac irq* clear counter1 */
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/* 0x04 counter irq* clear counter2 */
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/* 0x08 always 0 irq enable */
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/* 0x10 read test bit set test bit */
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/* 0x20 always 0 unused */
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/*
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* XXX the following test may be destructive, to prevent the
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* worst case, we save the byte first, and in case the test
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* fails, we write back the saved byte .....
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*/
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t = rman_get_bustag(sc->sc_resources.io_base[0]);
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h = rman_get_bushandle(sc->sc_resources.io_base[0]);
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savebyte = bus_space_read_1(t, h, 0);
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/* write low to test bit */
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bus_space_write_1(t, h, 0, 0x00);
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/* test bit and next higher and lower bit must be 0 */
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if((byte = bus_space_read_1(t, h, 0) & 0x38) != 0x00)
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{
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printf("isic%d: Error, probe-1 failed, 0x%02x should be 0x00 for AVM A1/Fritz!\n",
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unit, byte);
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bus_space_write_1(t, h, 0, savebyte);
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return(ENXIO);
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}
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/* write high to test bit */
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bus_space_write_1(t, h, 0, 0x10);
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/* test bit must be high, next higher and lower bit must be 0 */
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if((byte = bus_space_read_1(t, h, 0) & 0x38) != 0x10)
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{
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printf("isic%d: Error, probe-2 failed, 0x%02x should be 0x10 for AVM A1/Fritz!\n",
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unit, byte);
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bus_space_write_1(t, h, 0, savebyte);
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return(ENXIO);
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}
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return(0);
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}
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/*---------------------------------------------------------------------------*
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* isic_attach_avma1 - attach AVM A1 and compatibles
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*---------------------------------------------------------------------------*/
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int
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isic_attach_avma1(device_t dev)
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{
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size_t unit = device_get_unit(dev);
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struct l1_softc *sc = &l1_sc[unit];
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bus_space_tag_t t = rman_get_bustag(sc->sc_resources.io_base[0]);
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bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.io_base[0]);
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/* reset ISAC/HSCX */
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bus_space_write_1(t, h, 0, 0x00);
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DELAY(SEC_DELAY / 10);
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bus_space_write_1(t, h, 0, AVM_CONF_WR_RESET);
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DELAY(SEC_DELAY / 10);
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bus_space_write_1(t, h, 0, 0x00);
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DELAY(SEC_DELAY / 10);
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/* setup IRQ */
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bus_space_write_1(t, h, 1, sc->sc_irq);
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DELAY(SEC_DELAY / 10);
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/* enable IRQ, disable counter IRQ */
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bus_space_write_1(t, h, 0, AVM_CONF_WR_IRQEN |
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AVM_CONF_WR_CCH | AVM_CONF_WR_CCL);
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DELAY(SEC_DELAY / 10);
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return(0);
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}
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#endif /* defined(AVM_A1) */
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