8ccdbb0642
csc_route and func_route to hold the way that each interrupt is routed. csc is Card Status Change in the datasheets and standard, but is called "Management Interrupt" in FreeBSDese. There are three types of interrupt routing: ISA parallel, PCI parallel and ISA serial (some chipsets support other types as well, but I don't plan on supporting them). When we try to allocate an interrupt, and the type for that interrupt is pci_parallel, allow it to be shared by oring in RF_SHAREABLE to the flags argument. Introduce pcic_alloc_resource to allow this to happen.
326 lines
9.2 KiB
C
326 lines
9.2 KiB
C
/*
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* Copyright (c) 2001 M. Warner Losh. 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 ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/param.h>
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#include <sys/bus.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <pccard/i82365.h>
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#include <pccard/cardinfo.h>
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#include <pccard/slot.h>
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#include <pccard/pcicvar.h>
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/* Get pnp IDs */
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#include <isa/isavar.h>
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#include <dev/pcic/i82365reg.h>
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#include <dev/pccard/pccardvar.h>
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#include "card_if.h"
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static struct isa_pnp_id pcic_ids[] = {
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{PCIC_PNP_ACTIONTEC, NULL}, /* AEI0218 */
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{PCIC_PNP_IBM3765, NULL}, /* IBM3765 */
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{PCIC_PNP_82365, NULL}, /* PNP0E00 */
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{PCIC_PNP_CL_PD6720, NULL}, /* PNP0E01 */
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{PCIC_PNP_VLSI_82C146, NULL}, /* PNP0E02 */
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{PCIC_PNP_82365_CARDBUS, NULL}, /* PNP0E03 */
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{PCIC_PNP_SCM_SWAPBOX, NULL}, /* SCM0469 */
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{0}
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};
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static struct {
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const char *name;
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u_int32_t flags;
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} bridges[] = {
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{ "Intel i82365SL-A/B", PCIC_AB_POWER},
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{ "IBM PCIC", PCIC_AB_POWER},
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{ "VLSI 82C146", PCIC_AB_POWER},
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{ "Cirrus logic 672x", PCIC_PD_POWER},
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{ "Cirrus logic 6710", PCIC_PD_POWER},
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{ "Vadem 365", PCIC_VG_POWER},
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{ "Vadem 465", PCIC_VG_POWER},
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{ "Vadem 468", PCIC_VG_POWER},
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{ "Vadem 469", PCIC_VG_POWER},
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{ "Ricoh RF5C296", PCIC_RICOH_POWER},
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{ "Ricoh RF5C396", PCIC_RICOH_POWER},
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{ "IBM KING", PCIC_KING_POWER},
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{ "Intel i82365SL-DF", PCIC_DF_POWER}
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};
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/*
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* Look for an Intel PCIC (or compatible).
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* For each available slot, allocate a PC-CARD slot.
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*/
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static int
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pcic_isa_probe(device_t dev)
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{
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int slotnum, validslots = 0;
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struct pcic_slot *sp;
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struct pcic_slot *sp0;
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struct pcic_slot *sp1;
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struct pcic_slot spsave;
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unsigned char c;
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struct resource *r;
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int rid;
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struct pcic_softc *sc;
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int error;
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/* Check isapnp ids */
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error = ISA_PNP_PROBE(device_get_parent(dev), dev, pcic_ids);
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if (error == ENXIO)
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return (ENXIO);
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if (bus_get_resource_start(dev, SYS_RES_IOPORT, 0) == 0)
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bus_set_resource(dev, SYS_RES_IOPORT, 0, PCIC_PORT_0,
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PCIC_NPORT);
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rid = 0;
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r = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1, RF_ACTIVE);
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if (!r) {
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if (bootverbose)
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device_printf(dev, "Cannot get I/O range\n");
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return (ENOMEM);
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}
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sc = (struct pcic_softc *) device_get_softc(dev);
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sc->dev = dev;
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sp = &sc->slots[0];
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for (slotnum = 0; slotnum < PCIC_CARD_SLOTS; slotnum++, sp++) {
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/*
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* Initialise the PCIC slot table.
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*/
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sp->getb = pcic_getb_io;
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sp->putb = pcic_putb_io;
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sp->bst = rman_get_bustag(r);
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sp->bsh = rman_get_bushandle(r);
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sp->offset = slotnum * PCIC_SLOT_SIZE;
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sp->controller = -1;
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}
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/*
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* Prescan for the broken VLSI chips.
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*
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* According to the Linux PCMCIA code from David Hinds,
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* working chipsets return 0x84 from their (correct) ID ports,
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* while the broken ones would need to be probed at the new
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* offset we set after we assume it's broken.
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*
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* Note: because of this, we may incorrectly detect a single
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* slot vlsi chip as a i82365sl step D. I cannot find a
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* datasheet for the affected chip, so that's the best we can
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* do for now.
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*/
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sp0 = &sc->slots[0];
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sp1 = &sc->slots[1];
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if (sp0->getb(sp0, PCIC_ID_REV) == PCIC_VLSI82C146 &&
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sp1->getb(sp1, PCIC_ID_REV) != PCIC_VLSI82C146) {
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spsave = *sp1;
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sp1->bsh += 4;
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sp1->offset = PCIC_SLOT_SIZE << 1;
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if (sp1->getb(sp1, PCIC_ID_REV) != PCIC_VLSI82C146) {
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*sp1 = spsave;
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} else {
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sp0->controller = PCIC_VLSI;
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sp1->controller = PCIC_VLSI;
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}
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}
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/*
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* Look for normal chipsets here.
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*/
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sp = &sc->slots[0];
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for (slotnum = 0; slotnum < PCIC_CARD_SLOTS; slotnum++, sp++) {
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/*
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* see if there's a PCMCIA controller here
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* Intel PCMCIA controllers use 0x82 and 0x83
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* IBM clone chips use 0x88 and 0x89, apparently
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*/
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c = sp->getb(sp, PCIC_ID_REV);
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sp->revision = -1;
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switch(c) {
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/*
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* 82365 or clones.
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*/
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case PCIC_INTEL0:
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case PCIC_INTEL1:
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sp->controller = PCIC_I82365;
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sp->revision = c & 1;
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/*
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* Check for Vadem chips by unlocking their extra
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* registers and looking for valid ID. Bit 3 in
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* the ID register is normally 0, except when
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* PCIC_VADEMREV is set. Other bridges appear
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* to ignore this frobbing.
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*/
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bus_space_write_1(sp->bst, sp->bsh, PCIC_INDEX, 0x0E);
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bus_space_write_1(sp->bst, sp->bsh, PCIC_INDEX, 0x37);
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pcic_setb(sp, PCIC_VMISC, PCIC_VADEMREV);
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c = sp->getb(sp, PCIC_ID_REV);
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if (c & 0x08) {
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switch (sp->revision = c & 7) {
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case 1:
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sp->controller = PCIC_VG365;
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break;
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case 2:
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sp->controller = PCIC_VG465;
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break;
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case 3:
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sp->controller = PCIC_VG468;
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break;
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default:
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sp->controller = PCIC_VG469;
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break;
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}
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pcic_clrb(sp, PCIC_VMISC, PCIC_VADEMREV);
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}
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/*
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* Check for RICOH RF5C[23]96 PCMCIA Controller
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*/
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c = sp->getb(sp, PCIC_RICOH_ID);
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if (c == PCIC_RID_396)
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sp->controller = PCIC_RF5C396;
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else if (c == PCIC_RID_296)
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sp->controller = PCIC_RF5C296;
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break;
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/*
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* Intel i82365sl-DF step or maybe a vlsi 82c146
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* we detected the vlsi case earlier, so if the controller
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* isn't set, we know it is a i82365sl step D.
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*/
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case PCIC_INTEL2:
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if (sp->controller == -1)
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sp->controller = PCIC_I82365SL_DF;
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break;
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case PCIC_IBM1:
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case PCIC_IBM2:
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sp->controller = PCIC_IBM;
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sp->revision = c & 1;
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break;
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case PCIC_IBM3:
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sp->controller = PCIC_IBM_KING;
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sp->revision = c & 1;
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break;
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default:
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continue;
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}
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/*
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* Check for Cirrus logic chips.
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*/
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sp->putb(sp, PCIC_CLCHIP, 0);
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c = sp->getb(sp, PCIC_CLCHIP);
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if ((c & PCIC_CLC_TOGGLE) == PCIC_CLC_TOGGLE) {
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c = sp->getb(sp, PCIC_CLCHIP);
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if ((c & PCIC_CLC_TOGGLE) == 0) {
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if (c & PCIC_CLC_DUAL)
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sp->controller = PCIC_PD672X;
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else
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sp->controller = PCIC_PD6710;
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sp->revision = 8 - ((c & 0x1F) >> 2);
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}
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}
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device_set_desc(dev, bridges[(int) sp->controller].name);
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sc->flags = bridges[(int) sp->controller].flags;
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/*
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* OK it seems we have a PCIC or lookalike.
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* Allocate a slot and initialise the data structures.
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*/
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validslots++;
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sp->slt = (struct slot *) 1;
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/*
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* Modem cards send the speaker audio (dialing noises)
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* to the host's speaker. Cirrus Logic PCIC chips must
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* enable this. There is also a Low Power Dynamic Mode bit
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* that claims to reduce power consumption by 30%, so
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* enable it and hope for the best.
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*/
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if (sp->controller == PCIC_PD672X) {
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pcic_setb(sp, PCIC_MISC1, PCIC_MISC1_SPEAKER);
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pcic_setb(sp, PCIC_MISC2, PCIC_LPDM_EN);
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}
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}
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bus_release_resource(dev, SYS_RES_IOPORT, rid, r);
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return (validslots ? 0 : ENXIO);
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}
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static int
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pcic_isa_attach(device_t dev)
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{
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struct pcic_softc *sc;
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int rid;
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struct resource *r;
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sc = device_get_softc(dev);
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rid = 0;
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r = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1, RF_ACTIVE);
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if (!r) {
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pcic_dealloc(dev);
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return (ENXIO);
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}
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sc->iorid = rid;
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sc->iores = r;
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sc->csc_route = isa_parallel;
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sc->func_route = isa_parallel;
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return (pcic_attach(dev));
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}
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static device_method_t pcic_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, pcic_isa_probe),
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DEVMETHOD(device_attach, pcic_isa_attach),
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DEVMETHOD(device_detach, bus_generic_detach),
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DEVMETHOD(device_shutdown, bus_generic_shutdown),
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DEVMETHOD(device_suspend, bus_generic_suspend),
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DEVMETHOD(device_resume, bus_generic_resume),
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/* Bus interface */
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DEVMETHOD(bus_print_child, bus_generic_print_child),
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DEVMETHOD(bus_alloc_resource, pcic_alloc_resource),
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DEVMETHOD(bus_release_resource, bus_generic_release_resource),
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DEVMETHOD(bus_activate_resource, pcic_activate_resource),
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DEVMETHOD(bus_deactivate_resource, pcic_deactivate_resource),
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DEVMETHOD(bus_setup_intr, pcic_setup_intr),
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DEVMETHOD(bus_teardown_intr, pcic_teardown_intr),
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/* Card interface */
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DEVMETHOD(card_set_res_flags, pcic_set_res_flags),
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DEVMETHOD(card_get_res_flags, pcic_get_res_flags),
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DEVMETHOD(card_set_memory_offset, pcic_set_memory_offset),
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DEVMETHOD(card_get_memory_offset, pcic_get_memory_offset),
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{ 0, 0 }
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};
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static driver_t pcic_driver = {
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"pcic",
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pcic_methods,
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sizeof(struct pcic_softc)
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};
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DRIVER_MODULE(pcic, isa, pcic_driver, pcic_devclass, 0, 0);
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