404 lines
12 KiB
C
404 lines
12 KiB
C
/* $NetBSD: i82365_isasubr.c,v 1.3 1999/10/15 06:07:27 haya Exp $ */
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/* $NetBSD: i82365_isa.c,v 1.11 1998/06/09 07:25:00 thorpej Exp $ */
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/* $FreeBSD$ */
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/*
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* Copyright (c) 1998 Bill Sommerfeld. All rights reserved.
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* Copyright (c) 1997 Marc Horowitz. 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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Marc Horowitz.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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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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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/malloc.h>
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#include <sys/module.h>
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#include <sys/kernel.h>
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#include <sys/queue.h>
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#include <sys/types.h>
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#include <sys/bus.h>
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#include <machine/bus.h>
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#include <sys/rman.h>
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#include <machine/resource.h>
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#include <isa/isavar.h>
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#include <dev/pccard/pccardreg.h>
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#include <dev/pccard/pccardvar.h>
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#include <dev/pcic/i82365reg.h>
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#include <dev/pcic/i82365var.h>
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#include "power_if.h"
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#include "card_if.h"
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/*****************************************************************************
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* Configurable parameters.
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*****************************************************************************/
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/*
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* Default I/O allocation range. If both are set to non-zero, these
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* values will be used instead. Otherwise, the code attempts to probe
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* the bus width. Systems with 10 address bits should use 0x300 and 0xff.
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* Systems with 12 address bits (most) should use 0x400 and 0xbff.
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*/
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#ifndef PCIC_ISA_ALLOC_IOBASE
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#define PCIC_ISA_ALLOC_IOBASE 0
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#endif
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#ifndef PCIC_ISA_ALLOC_IOSIZE
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#define PCIC_ISA_ALLOC_IOSIZE 0
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#endif
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int pcic_isa_alloc_iobase = PCIC_ISA_ALLOC_IOBASE;
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int pcic_isa_alloc_iosize = PCIC_ISA_ALLOC_IOSIZE;
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/*
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* Default IRQ allocation bitmask. This defines the range of allowable
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* IRQs for PCCARD slots. Useful if order of probing would screw up other
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* devices, or if PCIC hardware/cards have trouble with certain interrupt
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* lines.
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*
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* We disable IRQ 10 by default, since some common laptops (namely, the
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* NEC Versa series) reserve IRQ 10 for the docking station SCSI interface.
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*/
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#ifndef PCIC_ISA_INTR_ALLOC_MASK
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#define PCIC_ISA_INTR_ALLOC_MASK 0xfbff
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#endif
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int pcic_isa_intr_alloc_mask = PCIC_ISA_INTR_ALLOC_MASK;
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/*****************************************************************************
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* End of configurable parameters.
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*****************************************************************************/
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#define PCICISADEBUG 1
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#ifdef PCICISADEBUG
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int pcicisa_debug = PCICISADEBUG;
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#define DPRINTF(arg) if (pcicisa_debug) printf arg;
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#define DEVPRINTF(arg) if (pcicisa_debug) device_printf arg;
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#else
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#define DPRINTF(arg)
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#define DEVPRINTF(arg)
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#endif
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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 void
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pcic_isa_bus_width_probe (device_t dev)
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{
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struct pcic_softc *sc = PCIC_SOFTC(dev);
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bus_space_handle_t ioh_high;
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int i, iobuswidth, tmp1, tmp2;
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int rid;
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u_long base;
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u_int32_t length;
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bus_space_tag_t iot;
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bus_space_handle_t ioh;
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struct resource *r;
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base = rman_get_start(sc->port_res);
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length = rman_get_size(sc->port_res);
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iot = sc->iot;
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ioh = sc->ioh;
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/*
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* figure out how wide the isa bus is. Do this by checking if the
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* pcic controller is mirrored 0x400 above where we expect it to be.
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*/
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iobuswidth = 12;
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rid = 1;
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r = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, base + 0x400,
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base + 0x400 + length, length, RF_ACTIVE);
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if (!r) {
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printf("Can't allocated mirror area for pcic bus width probe\n");
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return;
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}
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ioh_high = rman_get_bushandle(r);
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for (i = 0; i < PCIC_NSLOTS; i++) {
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if (sc->handle[i].flags & PCIC_FLAG_SOCKETP) {
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/*
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* read the ident flags from the normal space and
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* from the mirror, and compare them
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*/
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bus_space_write_1(iot, ioh, PCIC_REG_INDEX,
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sc->handle[i].sock + PCIC_IDENT);
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tmp1 = bus_space_read_1(iot, ioh, PCIC_REG_DATA);
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bus_space_write_1(iot, ioh_high, PCIC_REG_INDEX,
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sc->handle[i].sock + PCIC_IDENT);
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tmp2 = bus_space_read_1(iot, ioh_high, PCIC_REG_DATA);
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if (tmp1 == tmp2)
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iobuswidth = 10;
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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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/*
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* XXX mycroft recommends I/O space range 0x400-0xfff . I should put
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* this in a header somewhere
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*/
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/*
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* XXX some hardware doesn't seem to grok addresses in 0x400 range--
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* apparently missing a bit or more of address lines. (e.g.
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* CIRRUS_PD672X with Linksys EthernetCard ne2000 clone in TI
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* TravelMate 5000--not clear which is at fault)
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*
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* Add a kludge to detect 10 bit wide buses and deal with them,
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* and also a config file option to override the probe.
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*/
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if (iobuswidth == 10) {
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sc->iobase = 0x300;
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sc->iosize = 0x0ff;
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} else {
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#if 0
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/*
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* This is what we'd like to use, but...
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*/
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sc->iobase = 0x400;
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sc->iosize = 0xbff;
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#else
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/*
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* ...the above bus width probe doesn't always work.
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* So, experimentation has shown the following range
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* to not lose on systems that 0x300-0x3ff loses on
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* (e.g. the NEC Versa 6030X).
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*/
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sc->iobase = 0x330;
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sc->iosize = 0x0cf;
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#endif
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}
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DEVPRINTF((dev, "bus_space_alloc range 0x%04lx-0x%04lx (probed)\n",
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(long) sc->iobase, (long) sc->iobase + sc->iosize));
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if (pcic_isa_alloc_iobase && pcic_isa_alloc_iosize) {
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sc->iobase = pcic_isa_alloc_iobase;
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sc->iosize = pcic_isa_alloc_iosize;
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DEVPRINTF((dev, "bus_space_alloc range 0x%04lx-0x%04lx "
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"(config override)\n", (long) sc->iobase,
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(long) sc->iobase + sc->iosize));
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}
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}
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#if 0
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static int
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pcic_isa_check(device_t dev, u_int16_t addr)
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{
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bus_space_tag_t iot;
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bus_space_handle_t ioh;
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int val, found;
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int rid;
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struct resource *res;
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rid = 0;
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res = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, addr, addr,
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PCIC_IOSIZE, RF_ACTIVE);
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if (!res)
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return(ENXIO);
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iot = rman_get_bustag(res);
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ioh = rman_get_bushandle(res);
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found = 0;
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/*
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* this could be done with a loop, but it would violate the
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* abstraction
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*/
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bus_space_write_1(iot, ioh, PCIC_REG_INDEX, C0SA + PCIC_IDENT);
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val = bus_space_read_1(iot, ioh, PCIC_REG_DATA);
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if (pcic_ident_ok(val))
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found++;
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bus_space_write_1(iot, ioh, PCIC_REG_INDEX, C0SB + PCIC_IDENT);
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val = bus_space_read_1(iot, ioh, PCIC_REG_DATA);
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if (pcic_ident_ok(val))
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found++;
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bus_space_write_1(iot, ioh, PCIC_REG_INDEX, C1SA + PCIC_IDENT);
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val = bus_space_read_1(iot, ioh, PCIC_REG_DATA);
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if (pcic_ident_ok(val))
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found++;
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bus_space_write_1(iot, ioh, PCIC_REG_INDEX, C1SB + PCIC_IDENT);
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val = bus_space_read_1(iot, ioh, PCIC_REG_DATA);
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if (pcic_ident_ok(val))
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found++;
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bus_release_resource(dev, SYS_RES_IOPORT, rid, res);
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return (found);
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}
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#endif
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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 error;
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struct resource *res;
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int rid;
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int i;
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u_long mem;
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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 we had some other problem. */
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if (!(error == 0 || error == ENOENT))
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return (error);
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/* If we have the resources we need then we're good to go. */
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if (bus_get_resource_start(dev, SYS_RES_IOPORT, 0) == 0)
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return (ENXIO);
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rid = 0;
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res = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1, RF_ACTIVE);
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if (res == NULL) {
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/*
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* No IRQ specified, find one. This can be due to the PnP
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* data not specifying any IRQ
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*/
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for (i = 0; i < 16; i++) {
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if (((1 << i) & PCIC_INTR_IRQ_VALIDMASK) == 0)
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continue;
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res = bus_alloc_resource(dev, SYS_RES_IRQ,
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&rid, i, i, 1, RF_ACTIVE);
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if (res != NULL)
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break;
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}
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if (res == NULL)
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return (ENXIO);
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mem = rman_get_start(res);
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bus_release_resource(dev, SYS_RES_IRQ, rid, res);
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bus_set_resource(dev, SYS_RES_IRQ, 0, i, 1);
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} else {
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bus_release_resource(dev, SYS_RES_IRQ, rid, res);
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}
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/* XXX This might not be needed in future, get it directly from
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* XXX parent */
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rid = 0;
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res = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, 0, ~0,
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1 << 13, RF_ACTIVE);
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if (res == NULL) {
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/*
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* We failed to get memory. Since this XXX comment above
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* indicates that this is transient, we try to get a hunk
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* of memory in the isa hole. Sure would be nice if there
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* were some MI constants for this.
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*/
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res = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid,
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0xa0000, 0xdffff, 1 << 13, RF_ACTIVE);
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if (res != NULL) {
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mem = rman_get_start(res);
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bus_release_resource(dev, SYS_RES_MEMORY, rid, res);
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bus_set_resource(dev, SYS_RES_MEMORY, 0, mem, 1 << 13);
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}
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} else {
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bus_release_resource(dev, SYS_RES_MEMORY, rid, res);
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}
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if (res == NULL) {
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device_printf(dev, "Cannot allocate mem\n");
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return ENOMEM;
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}
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return (0);
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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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int err = 0;
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if ((err = pcic_attach(dev)) == 0)
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pcic_isa_bus_width_probe (dev);
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return err;
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}
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static int
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pcic_isa_detach(device_t dev)
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{
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pcic_detach(dev);
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return 0;
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}
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static device_method_t pcic_isa_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, pcic_isa_detach),
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DEVMETHOD(device_shutdown, bus_generic_shutdown),
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DEVMETHOD(device_suspend, pcic_suspend),
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DEVMETHOD(device_resume, pcic_resume),
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/* Bus Interface */
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DEVMETHOD(bus_driver_added, bus_generic_driver_added),
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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, pcic_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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/* pccard/cardbus interface */
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DEVMETHOD(card_set_res_flags, pcic_set_res_flags),
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DEVMETHOD(card_set_memory_offset, pcic_set_memory_offset),
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/* Power Interface */
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DEVMETHOD(power_enable_socket, pcic_enable_socket),
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DEVMETHOD(power_disable_socket, pcic_disable_socket),
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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_isa_methods,
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sizeof(struct pcic_softc)
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};
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static devclass_t pcic_devclass;
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DRIVER_MODULE(pcic, isa, pcic_driver, pcic_devclass, 0, 0);
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