ef544f6312
bus_setup_intr() o add an int return code to all fast handlers o retire INTR_FAST/IH_FAST For more info: http://docs.freebsd.org/cgi/getmsg.cgi?fetch=465712+0+current/freebsd-current Reviewed by: many Approved by: re@
346 lines
8.4 KiB
C
346 lines
8.4 KiB
C
/*-
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* Copyright (c) 2000 Matthew N. Dodd
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* 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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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/socket.h>
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#include <sys/module.h>
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#include <sys/bus.h>
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#include <machine/bus.h>
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#include <machine/resource.h>
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#include <sys/rman.h>
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#include <net/if.h>
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#include <net/if_arp.h>
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#include <net/if_media.h>
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#include <isa/isavar.h>
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#include <isa/pnpvar.h>
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#include <dev/ex/if_exreg.h>
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#include <dev/ex/if_exvar.h>
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/* Bus Front End Functions */
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static void ex_isa_identify(driver_t *, device_t);
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static int ex_isa_probe(device_t);
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static int ex_isa_attach(device_t);
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static int ex_look_for_card(struct ex_softc *);
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#if 0
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static void ex_pnp_wakeup(void *);
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SYSINIT(ex_pnpwakeup, SI_SUB_CPU, SI_ORDER_ANY, ex_pnp_wakeup, NULL);
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#endif
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static device_method_t ex_isa_methods[] = {
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/* Device interface */
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DEVMETHOD(device_identify, ex_isa_identify),
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DEVMETHOD(device_probe, ex_isa_probe),
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DEVMETHOD(device_attach, ex_isa_attach),
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DEVMETHOD(device_detach, ex_detach),
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{ 0, 0 }
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};
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static driver_t ex_isa_driver = {
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"ex",
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ex_isa_methods,
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sizeof(struct ex_softc),
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};
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DRIVER_MODULE(ex, isa, ex_isa_driver, ex_devclass, 0, 0);
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static struct isa_pnp_id ex_ids[] = {
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{ 0x3110d425, NULL }, /* INT1031 */
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{ 0x3010d425, NULL }, /* INT1030 */
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{ 0, NULL },
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};
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#if 0
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#define EX_PNP_WAKE 0x279
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static uint8_t ex_pnp_wake_seq[] =
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{ 0x6A, 0xB5, 0xDA, 0xED, 0xF6, 0xFB, 0x7D, 0xBE,
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0xDF, 0x6F, 0x37, 0x1B, 0x0D, 0x86, 0xC3, 0x61,
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0xB0, 0x58, 0x2C, 0x16, 0x8B, 0x45, 0xA2, 0xD1,
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0xE8, 0x74, 0x3A, 0x9D, 0xCE, 0xE7, 0x73, 0x43 };
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static void
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ex_pnp_wakeup (void * dummy)
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{
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int tmp;
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if (bootverbose)
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printf("ex_pnp_wakeup()\n");
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outb(EX_PNP_WAKE, 0);
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outb(EX_PNP_WAKE, 0);
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for (tmp = 0; tmp < 32; tmp++) {
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outb(EX_PNP_WAKE, ex_pnp_wake_seq[tmp]);
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}
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}
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#endif
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/*
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* Non-destructive identify.
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*/
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static void
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ex_isa_identify(driver_t *driver, device_t parent)
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{
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device_t child;
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bus_addr_t ioport;
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u_char enaddr[6];
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u_int irq;
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int tmp;
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const char * desc;
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struct ex_softc sc;
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struct resource *res;
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int rid;
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if (bootverbose)
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printf("ex_isa_identify()\n");
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for (ioport = 0x200; ioport < 0x3a0; ioport += 0x10) {
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rid = 0;
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res = bus_alloc_resource(parent, SYS_RES_IOPORT, &rid,
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ioport, ioport, 0x10, RF_ACTIVE);
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if (res == NULL)
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continue;
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sc.bst = rman_get_bustag(res);
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sc.bsh = rman_get_bushandle(res);
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/* No board found at address */
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if (!ex_look_for_card(&sc)) {
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bus_release_resource(parent, SYS_RES_IOPORT, rid, res);
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continue;
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}
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if (bootverbose)
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printf("ex: Found card at 0x%03lx!\n", (unsigned long)ioport);
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/* Board in PnP mode */
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if (ex_eeprom_read(&sc, EE_W0) & EE_W0_PNP) {
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/* Reset the card. */
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CSR_WRITE_1(&sc, CMD_REG, Reset_CMD);
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DELAY(500);
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if (bootverbose)
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printf("ex: card at 0x%03lx in PnP mode!\n", (unsigned long)ioport);
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bus_release_resource(parent, SYS_RES_IOPORT, rid, res);
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continue;
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}
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bzero(enaddr, sizeof(enaddr));
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/* Reset the card. */
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CSR_WRITE_1(&sc, CMD_REG, Reset_CMD);
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DELAY(400);
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ex_get_address(&sc, enaddr);
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tmp = ex_eeprom_read(&sc, EE_W1) & EE_W1_INT_SEL;
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/* work out which set of irq <-> internal tables to use */
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if (ex_card_type(enaddr) == CARD_TYPE_EX_10_PLUS) {
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irq = plus_ee2irqmap[tmp];
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desc = "Intel Pro/10+";
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} else {
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irq = ee2irqmap[tmp];
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desc = "Intel Pro/10";
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}
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bus_release_resource(parent, SYS_RES_IOPORT, rid, res);
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child = BUS_ADD_CHILD(parent, ISA_ORDER_SPECULATIVE, "ex", -1);
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device_set_desc_copy(child, desc);
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device_set_driver(child, driver);
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bus_set_resource(child, SYS_RES_IRQ, 0, irq, 1);
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bus_set_resource(child, SYS_RES_IOPORT, 0, ioport, EX_IOSIZE);
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if (bootverbose)
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printf("ex: Adding board at 0x%03lx, irq %d\n",
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(unsigned long)ioport, irq);
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}
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return;
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}
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static int
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ex_isa_probe(device_t dev)
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{
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bus_addr_t iobase;
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u_int irq;
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char * irq2ee;
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u_char * ee2irq;
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u_char enaddr[6];
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int tmp;
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int error;
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struct ex_softc *sc = device_get_softc(dev);
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/* Check isapnp ids */
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error = ISA_PNP_PROBE(device_get_parent(dev), dev, ex_ids);
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/* If the card had a PnP ID that didn't match any we know about */
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if (error == ENXIO)
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return(error);
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/* If we had some other problem. */
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if (!(error == 0 || error == ENOENT))
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return(error);
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error = ex_alloc_resources(dev);
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if (error != 0)
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goto bad;
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iobase = bus_get_resource_start(dev, SYS_RES_IOPORT, 0);
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if (!ex_look_for_card(sc)) {
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if (bootverbose)
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printf("ex: no card found at 0x%03lx.\n", (unsigned long)iobase);
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error = ENXIO;
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goto bad;
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}
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if (bootverbose)
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printf("ex: ex_isa_probe() found card at 0x%03lx\n", (unsigned long)iobase);
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/*
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* Reset the card.
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*/
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CSR_WRITE_1(sc, CMD_REG, Reset_CMD);
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DELAY(800);
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ex_get_address(sc, enaddr);
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/* work out which set of irq <-> internal tables to use */
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if (ex_card_type(enaddr) == CARD_TYPE_EX_10_PLUS) {
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irq2ee = plus_irq2eemap;
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ee2irq = plus_ee2irqmap;
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} else {
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irq2ee = irq2eemap;
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ee2irq = ee2irqmap;
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}
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tmp = ex_eeprom_read(sc, EE_W1) & EE_W1_INT_SEL;
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irq = bus_get_resource_start(dev, SYS_RES_IRQ, 0);
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if (irq > 0) {
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/* This will happen if board is in PnP mode. */
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if (ee2irq[tmp] != irq) {
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printf("ex: WARNING: board's EEPROM is configured"
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" for IRQ %d, using %d\n",
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ee2irq[tmp], irq);
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}
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} else {
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irq = ee2irq[tmp];
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bus_set_resource(dev, SYS_RES_IRQ, 0, irq, 1);
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}
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if (irq == 0) {
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printf("ex: invalid IRQ.\n");
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error = ENXIO;
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}
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bad:;
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ex_release_resources(dev);
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return(error);
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}
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static int
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ex_isa_attach(device_t dev)
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{
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struct ex_softc * sc = device_get_softc(dev);
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int error = 0;
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uint16_t temp;
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sc->dev = dev;
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sc->ioport_rid = 0;
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sc->irq_rid = 0;
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if ((error = ex_alloc_resources(dev)) != 0) {
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device_printf(dev, "ex_alloc_resources() failed!\n");
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goto bad;
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}
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/*
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* Fill in several fields of the softc structure:
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* - I/O base address.
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* - Hardware Ethernet address.
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* - IRQ number (if not supplied in config file, read it from EEPROM).
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* - Connector type.
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*/
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sc->irq_no = rman_get_start(sc->irq);
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ex_get_address(sc, sc->enaddr);
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temp = ex_eeprom_read(sc, EE_W0);
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device_printf(sc->dev, "%s config, %s bus, ",
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(temp & EE_W0_PNP) ? "PnP" : "Manual",
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(temp & EE_W0_BUS16) ? "16-bit" : "8-bit");
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temp = ex_eeprom_read(sc, EE_W6);
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printf("board id 0x%03x, stepping 0x%01x\n",
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(temp & EE_W6_BOARD_MASK) >> EE_W6_BOARD_SHIFT,
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temp & EE_W6_STEP_MASK);
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if ((error = ex_attach(dev)) != 0) {
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device_printf(dev, "ex_attach() failed!\n");
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goto bad;
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}
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error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET,
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NULL, ex_intr, (void *)sc, &sc->ih);
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if (error) {
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device_printf(dev, "bus_setup_intr() failed!\n");
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goto bad;
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}
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return(0);
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bad:
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ex_release_resources(dev);
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return (error);
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}
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static int
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ex_look_for_card(struct ex_softc *sc)
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{
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int count1, count2;
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/*
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* Check for the i82595 signature, and check that the round robin
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* counter actually advances.
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*/
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if (((count1 = CSR_READ_1(sc, ID_REG)) & Id_Mask) != Id_Sig)
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return(0);
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count2 = CSR_READ_1(sc, ID_REG);
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count2 = CSR_READ_1(sc, ID_REG);
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count2 = CSR_READ_1(sc, ID_REG);
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return((count2 & Counter_bits) == ((count1 + 0xc0) & Counter_bits));
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}
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