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@
262 lines
6.9 KiB
C
262 lines
6.9 KiB
C
/*-
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* Copyright (c) 1999 Luoqi Chen.
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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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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/kernel.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 <isa/isavar.h>
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#include <dev/aic/aic6360reg.h>
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#include <dev/aic/aicvar.h>
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struct aic_isa_softc {
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struct aic_softc sc_aic;
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struct resource *sc_port;
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struct resource *sc_irq;
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struct resource *sc_drq;
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void *sc_ih;
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};
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static int aic_isa_alloc_resources(device_t);
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static void aic_isa_release_resources(device_t);
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static int aic_isa_probe(device_t);
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static int aic_isa_attach(device_t);
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static u_int aic_isa_ports[] = { 0x1840 };
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#define AIC_ISA_NUMPORTS (sizeof(aic_isa_ports) / sizeof(aic_isa_ports[0]))
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#define AIC_ISA_PORTSIZE 0x20
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#define AIC98_GENERIC 0x00
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#define AIC98_NEC100 0x01
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#define AIC_TYPE98(x) (((x) >> 16) & 0x01)
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static bus_addr_t aicport_generic[AIC_ISA_PORTSIZE] = {
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0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
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0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
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0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
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0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
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};
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static bus_addr_t aicport_100[AIC_ISA_PORTSIZE] = {
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0x00, 0x02, 0x04, 0x06, 0x08, 0x0a, 0x0c, 0x0e,
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0x10, 0x12, 0x14, 0x16, 0x18, 0x1a, 0x1c, 0x1e,
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0x20, 0x22, 0x24, 0x26, 0x28, 0x2a, 0x2c, 0x2e,
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0x30, 0x32, 0x34, 0x36, 0x38, 0x3a, 0x3c, 0x3e,
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};
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static struct isa_pnp_id aic_ids[] = {
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{ 0xa180a3b8, "NEC PC9801-100" },
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{ 0 }
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};
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static int
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aic_isa_alloc_resources(device_t dev)
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{
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struct aic_isa_softc *sc = device_get_softc(dev);
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int rid;
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bus_addr_t *bs_iat;
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if ((isa_get_logicalid(dev) == 0xa180a3b8) ||
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(AIC_TYPE98(device_get_flags(dev)) == AIC98_NEC100))
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bs_iat = aicport_100;
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else
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bs_iat = aicport_generic;
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sc->sc_port = sc->sc_irq = sc->sc_drq = 0;
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rid = 0;
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sc->sc_port = isa_alloc_resourcev(dev, SYS_RES_IOPORT, &rid,
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bs_iat, AIC_ISA_PORTSIZE, RF_ACTIVE);
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if (!sc->sc_port) {
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device_printf(dev, "I/O port allocation failed\n");
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return (ENOMEM);
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}
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isa_load_resourcev(sc->sc_port, bs_iat, AIC_ISA_PORTSIZE);
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if (isa_get_irq(dev) != -1) {
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rid = 0;
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sc->sc_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
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RF_ACTIVE);
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if (!sc->sc_irq) {
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device_printf(dev, "IRQ allocation failed\n");
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aic_isa_release_resources(dev);
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return (ENOMEM);
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}
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}
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if (isa_get_drq(dev) != -1) {
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rid = 0;
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sc->sc_drq = bus_alloc_resource_any(dev, SYS_RES_DRQ, &rid,
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RF_ACTIVE);
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if (!sc->sc_drq) {
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device_printf(dev, "DRQ allocation failed\n");
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aic_isa_release_resources(dev);
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return (ENOMEM);
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}
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}
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sc->sc_aic.unit = device_get_unit(dev);
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sc->sc_aic.tag = rman_get_bustag(sc->sc_port);
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sc->sc_aic.bsh = rman_get_bushandle(sc->sc_port);
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return (0);
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}
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static void
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aic_isa_release_resources(device_t dev)
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{
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struct aic_isa_softc *sc = device_get_softc(dev);
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if (sc->sc_port)
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bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->sc_port);
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if (sc->sc_irq)
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bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_irq);
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if (sc->sc_drq)
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bus_release_resource(dev, SYS_RES_DRQ, 0, sc->sc_drq);
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sc->sc_port = sc->sc_irq = sc->sc_drq = 0;
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}
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static int
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aic_isa_probe(device_t dev)
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{
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struct aic_isa_softc *sc = device_get_softc(dev);
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struct aic_softc *aic = &sc->sc_aic;
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int numports, i;
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u_int port, *ports;
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u_int8_t porta;
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if (ISA_PNP_PROBE(device_get_parent(dev), dev, aic_ids) == ENXIO)
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return (ENXIO);
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port = isa_get_port(dev);
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if (port != -1) {
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ports = &port;
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numports = 1;
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} else {
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ports = aic_isa_ports;
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numports = AIC_ISA_NUMPORTS;
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}
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for (i = 0; i < numports; i++) {
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if (bus_set_resource(dev, SYS_RES_IOPORT, 0, ports[i], 1))
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continue;
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if (aic_isa_alloc_resources(dev))
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continue;
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if (!aic_probe(aic)) {
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aic_isa_release_resources(dev);
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break;
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}
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aic_isa_release_resources(dev);
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}
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if (i == numports)
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return (ENXIO);
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porta = aic_inb(aic, PORTA);
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if (isa_get_irq(dev) == -1)
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bus_set_resource(dev, SYS_RES_IRQ, 0, PORTA_IRQ(porta), 1);
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if ((aic->flags & AIC_DMA_ENABLE) && isa_get_drq(dev) == -1)
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bus_set_resource(dev, SYS_RES_DRQ, 0, PORTA_DRQ(porta), 1);
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device_set_desc(dev, "Adaptec 6260/6360 SCSI controller");
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return (0);
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}
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static int
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aic_isa_attach(device_t dev)
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{
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struct aic_isa_softc *sc = device_get_softc(dev);
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struct aic_softc *aic = &sc->sc_aic;
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int error;
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error = aic_isa_alloc_resources(dev);
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if (error) {
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device_printf(dev, "resource allocation failed\n");
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return (error);
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}
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error = aic_attach(aic);
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if (error) {
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device_printf(dev, "attach failed\n");
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aic_isa_release_resources(dev);
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return (error);
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}
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error = bus_setup_intr(dev, sc->sc_irq, INTR_TYPE_CAM|INTR_ENTROPY,
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NULL, aic_intr, aic, &sc->sc_ih);
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if (error) {
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device_printf(dev, "failed to register interrupt handler\n");
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aic_isa_release_resources(dev);
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return (error);
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}
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return (0);
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}
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static int
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aic_isa_detach(device_t dev)
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{
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struct aic_isa_softc *sc = device_get_softc(dev);
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struct aic_softc *aic = &sc->sc_aic;
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int error;
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error = aic_detach(aic);
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if (error) {
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device_printf(dev, "detach failed\n");
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return (error);
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}
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error = bus_teardown_intr(dev, sc->sc_irq, sc->sc_ih);
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if (error) {
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device_printf(dev, "failed to unregister interrupt handler\n");
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}
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aic_isa_release_resources(dev);
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return (0);
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}
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static device_method_t aic_isa_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, aic_isa_probe),
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DEVMETHOD(device_attach, aic_isa_attach),
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DEVMETHOD(device_detach, aic_isa_detach),
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{ 0, 0 }
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};
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static driver_t aic_isa_driver = {
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"aic",
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aic_isa_methods, sizeof(struct aic_isa_softc),
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};
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extern devclass_t aic_devclass;
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MODULE_DEPEND(aic, cam, 1,1,1);
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DRIVER_MODULE(aic, isa, aic_isa_driver, aic_devclass, 0, 0);
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