391 lines
12 KiB
C
391 lines
12 KiB
C
/*
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* Copyright (c) 1999, 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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* 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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*---------------------------------------------------------------------------
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*
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* isic - I4B driver for ELSA MicroLink ISDN/PCC-16 and ELSA PCFpro
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* ================================================================
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* last edit-date: [Sun Oct 21 09:42:17 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(ELSA_PCC16)
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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 <i4b/layer1/isic/i4b_isic.h>
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#include <i4b/layer1/isic/i4b_hscx.h>
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static void i4b_epcc16_clrirq(struct l1_softc *sc);
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/* masks for register encoded in base addr */
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#define ELSA_BASE_MASK 0x0ffff
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#define ELSA_OFF_MASK 0xf0000
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/* register id's to be encoded in base addr */
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#define ELSA_IDISAC 0x00000
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#define ELSA_IDHSCXA 0x10000
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#define ELSA_IDHSCXB 0x20000
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/* offsets from base address */
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#define ELSA_OFF_ISAC 0x00
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#define ELSA_OFF_HSCX 0x02
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#define ELSA_OFF_OFF 0x03
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#define ELSA_OFF_CTRL 0x04
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#define ELSA_OFF_CFG 0x05
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#define ELSA_OFF_TIMR 0x06
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#define ELSA_OFF_IRQ 0x07
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/* control register (write access) */
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#define ELSA_CTRL_LED_YELLOW 0x02
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#define ELSA_CTRL_LED_GREEN 0x08
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#define ELSA_CTRL_RESET 0x20
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#define ELSA_CTRL_TIMEREN 0x80
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#define ELSA_CTRL_SECRET 0x50
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/*---------------------------------------------------------------------------*
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* ELSA MicroLink ISDN/PCC-16 clear IRQ routine
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*---------------------------------------------------------------------------*/
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static void
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i4b_epcc16_clrirq(struct l1_softc *sc)
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{
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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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bus_space_write_1(t, h, ELSA_OFF_IRQ, 0);
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}
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/*---------------------------------------------------------------------------*
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* ELSA MicroLink ISDN/PCC-16 ISAC get fifo routine
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*---------------------------------------------------------------------------*/
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static void
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epcc16_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[0]);
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bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.io_base[0]);
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switch (what) {
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case ISIC_WHAT_ISAC:
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bus_space_write_1(t, h, ELSA_OFF_OFF, 0);
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bus_space_read_multi_1(t, h, ELSA_OFF_ISAC, buf, size);
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break;
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case ISIC_WHAT_HSCXA:
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bus_space_write_1(t, h, ELSA_OFF_OFF, 0);
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bus_space_read_multi_1(t, h, ELSA_OFF_HSCX, buf, size);
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break;
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case ISIC_WHAT_HSCXB:
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bus_space_write_1(t, h, ELSA_OFF_OFF, 0x40);
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bus_space_read_multi_1(t, h, ELSA_OFF_HSCX, buf, size);
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break;
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}
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}
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/*---------------------------------------------------------------------------*
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* ELSA MicroLink ISDN/PCC-16 ISAC put fifo routine
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*---------------------------------------------------------------------------*/
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static void
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epcc16_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[0]);
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bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.io_base[0]);
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switch (what) {
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case ISIC_WHAT_ISAC:
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bus_space_write_1(t, h, ELSA_OFF_OFF, 0);
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bus_space_write_multi_1(t, h, ELSA_OFF_ISAC, buf, size);
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break;
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case ISIC_WHAT_HSCXA:
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bus_space_write_1(t, h, ELSA_OFF_OFF, 0);
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bus_space_write_multi_1(t, h, ELSA_OFF_HSCX, buf, size);
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break;
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case ISIC_WHAT_HSCXB:
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bus_space_write_1(t, h, ELSA_OFF_OFF, 0x40);
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bus_space_write_multi_1(t, h, ELSA_OFF_HSCX, buf, size);
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break;
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}
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}
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/*---------------------------------------------------------------------------*
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* ELSA MicroLink ISDN/PCC-16 ISAC put register routine
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*---------------------------------------------------------------------------*/
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static void
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epcc16_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[0]);
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bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.io_base[0]);
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switch (what) {
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case ISIC_WHAT_ISAC:
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bus_space_write_1(t, h, ELSA_OFF_OFF, offs);
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bus_space_write_1(t, h, ELSA_OFF_ISAC, data);
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break;
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case ISIC_WHAT_HSCXA:
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bus_space_write_1(t, h, ELSA_OFF_OFF, offs);
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bus_space_write_1(t, h, ELSA_OFF_HSCX, data);
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break;
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case ISIC_WHAT_HSCXB:
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bus_space_write_1(t, h, ELSA_OFF_OFF, 0x40+offs);
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bus_space_write_1(t, h, ELSA_OFF_HSCX, data);
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break;
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}
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}
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/*---------------------------------------------------------------------------*
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* ELSA MicroLink ISDN/PCC-16 ISAC get register routine
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*---------------------------------------------------------------------------*/
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static u_int8_t
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epcc16_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[0]);
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bus_space_handle_t h = rman_get_bushandle(sc->sc_resources.io_base[0]);
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switch (what) {
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case ISIC_WHAT_ISAC:
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bus_space_write_1(t, h, ELSA_OFF_OFF, offs);
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return bus_space_read_1(t, h, ELSA_OFF_ISAC);
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case ISIC_WHAT_HSCXA:
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bus_space_write_1(t, h, ELSA_OFF_OFF, offs);
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return bus_space_read_1(t, h, ELSA_OFF_HSCX);
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case ISIC_WHAT_HSCXB:
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bus_space_write_1(t, h, ELSA_OFF_OFF, 0x40+offs);
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return bus_space_read_1(t, h, ELSA_OFF_HSCX);
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}
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return 0;
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}
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/*---------------------------------------------------------------------------*
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* isic_detach_Epcc16 - detach for ELSA MicroLink ISDN/PCC-16
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*---------------------------------------------------------------------------*/
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static void
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isic_detach_Epcc16(device_t dev)
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{
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struct l1_softc *sc = &l1_sc[device_get_unit(dev)];
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if ( sc->sc_resources.irq )
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{
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bus_teardown_intr(dev,sc->sc_resources.irq,
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(void(*)(void *))isicintr);
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bus_release_resource(dev,SYS_RES_IRQ,
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sc->sc_resources.irq_rid,
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sc->sc_resources.irq);
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sc->sc_resources.irq = 0;
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}
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if ( sc->sc_resources.io_base[0] ) {
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bus_release_resource(dev,SYS_RES_IOPORT,
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sc->sc_resources.io_rid[0],
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sc->sc_resources.io_base[0]);
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sc->sc_resources.io_base[0] = 0;
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}
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}
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/*---------------------------------------------------------------------------*
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* isic_probe_Epcc16 - probe for ELSA MicroLink ISDN/PCC-16
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*---------------------------------------------------------------------------*/
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int
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isic_probe_Epcc16(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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/* 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 ELSA PCC-16!\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(dev, SYS_RES_IOPORT,
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&sc->sc_resources.io_rid[0],
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0ul, ~0ul, 1, RF_ACTIVE)))
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{
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printf("isic%d: Could not get iobase for ELSA PCC-16.\n",
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unit);
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return(ENXIO);
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}
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/* check if we got an iobase */
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sc->sc_port = rman_get_start(sc->sc_resources.io_base[0]);
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switch(sc->sc_port)
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{
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case 0x160:
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case 0x170:
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case 0x260:
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case 0x360:
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break;
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default:
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printf("isic%d: Error, invalid iobase 0x%x specified for ELSA MicroLink ISDN/PCC-16!\n",
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unit, sc->sc_port);
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isic_detach_Epcc16(dev);
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return(ENXIO);
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break;
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}
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/* setup access routines */
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sc->clearirq = i4b_epcc16_clrirq;
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sc->readreg = epcc16_read_reg;
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sc->writereg = epcc16_write_reg;
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sc->readfifo = epcc16_read_fifo;
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sc->writefifo = epcc16_write_fifo;
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/* setup card type */
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sc->sc_cardtyp = CARD_TYPEP_PCC16;
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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. Expected value for the ELSA PCC-16
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* is 0x05 ( = version 2.1 ) 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(1, H_VSTR) & 0xf) != 0x5) )
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{
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/* patch from "Doobee R . Tzeck" <drt@ailis.de>:
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* I own an ELSA PCFpro. To my knowledge, the ELSA PCC16 is
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* a stripped down Version on the PCFpro. By patching the
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* card detection routine for the PPC16 I was able to use
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* the PPC16 driver for the PCFpro.
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*/
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if( ((HSCX_READ(0, H_VSTR) & 0xf) != 0x85) ||
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((HSCX_READ(1, H_VSTR) & 0xf) != 0x85) )
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{
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printf("isic%d: HSCX VSTR test failed for ELSA MicroLink ISDN/PCC-16\n",
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unit);
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isic_detach_Epcc16(dev);
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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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else
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{
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printf("isic%d: ELSA MicroLink ISDN/PCFpro found, going to tread it as PCC-16\n",
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unit);
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}
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}
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/* get our irq */
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if(!(sc->sc_resources.irq =
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bus_alloc_resource(dev, SYS_RES_IRQ,
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&sc->sc_resources.irq_rid,
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0ul, ~0ul, 1, RF_ACTIVE)))
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{
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printf("isic%d: Could not get an irq.\n",unit);
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isic_detach_Epcc16(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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/* check IRQ validity */
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switch(sc->sc_irq)
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{
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case 2:
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case 9:
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case 3:
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case 5:
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case 10:
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case 11:
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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 ELSA MicroLink ISDN/PCC-16!\n",
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unit, sc->sc_irq);
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isic_detach_Epcc16(dev);
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return(ENXIO);
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break;
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}
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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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return (0);
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}
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/*---------------------------------------------------------------------------*
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* isic_attach_Epcc16 - attach for ELSA MicroLink ISDN/PCC-16
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*---------------------------------------------------------------------------*/
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int
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isic_attach_Epcc16(device_t dev)
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{
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int 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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u_char byte = ELSA_CTRL_SECRET;
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byte &= ~ELSA_CTRL_RESET;
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bus_space_write_1(t, h, ELSA_OFF_CTRL, byte);
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DELAY(20);
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byte |= ELSA_CTRL_RESET;
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bus_space_write_1(t, h, ELSA_OFF_CTRL, byte);
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DELAY(20);
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bus_space_write_1(t, h, ELSA_OFF_IRQ, 0xff);
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return 0;
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}
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#endif /* defined(ELSA_PCC16) */
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