aic_isa.c revision 52417
152417Sluoqi/*- 252417Sluoqi * Copyright (c) 1999 Luoqi Chen. 352417Sluoqi * All rights reserved. 452417Sluoqi * 552417Sluoqi * Redistribution and use in source and binary forms, with or without 652417Sluoqi * modification, are permitted provided that the following conditions 752417Sluoqi * are met: 852417Sluoqi * 1. Redistributions of source code must retain the above copyright 952417Sluoqi * notice, this list of conditions and the following disclaimer. 1052417Sluoqi * 2. Redistributions in binary form must reproduce the above copyright 1152417Sluoqi * notice, this list of conditions and the following disclaimer in the 1252417Sluoqi * documentation and/or other materials provided with the distribution. 1352417Sluoqi * 1452417Sluoqi * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1552417Sluoqi * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1652417Sluoqi * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1752417Sluoqi * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 1852417Sluoqi * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 1952417Sluoqi * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2052417Sluoqi * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2152417Sluoqi * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2252417Sluoqi * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2352417Sluoqi * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2452417Sluoqi * SUCH DAMAGE. 2552417Sluoqi * 2652417Sluoqi * $FreeBSD: head/sys/dev/aic/aic_isa.c 52417 1999-10-21 08:56:53Z luoqi $ 2752417Sluoqi */ 2852417Sluoqi 2952417Sluoqi#include <sys/param.h> 3052417Sluoqi#include <sys/systm.h> 3152417Sluoqi#include <sys/kernel.h> 3252417Sluoqi#include <sys/module.h> 3352417Sluoqi#include <sys/bus.h> 3452417Sluoqi 3552417Sluoqi#include <machine/bus_pio.h> 3652417Sluoqi#include <machine/bus.h> 3752417Sluoqi#include <machine/resource.h> 3852417Sluoqi#include <sys/rman.h> 3952417Sluoqi 4052417Sluoqi#include <isa/isavar.h> 4152417Sluoqi#include <dev/aic/aic6360reg.h> 4252417Sluoqi#include <dev/aic/aicvar.h> 4352417Sluoqi 4452417Sluoqistruct aic_isa_softc { 4552417Sluoqi struct aic_softc sc_aic; 4652417Sluoqi struct resource *sc_port; 4752417Sluoqi struct resource *sc_irq; 4852417Sluoqi struct resource *sc_drq; 4952417Sluoqi void *sc_ih; 5052417Sluoqi}; 5152417Sluoqi 5252417Sluoqistatic int aic_isa_alloc_resources __P((device_t)); 5352417Sluoqistatic void aic_isa_release_resources __P((device_t)); 5452417Sluoqistatic int aic_isa_probe __P((device_t dev)); 5552417Sluoqistatic int aic_isa_attach __P((device_t dev)); 5652417Sluoqi 5752417Sluoqistatic u_int aic_isa_ports[] = { 0x340, 0x140 }; 5852417Sluoqi#define AIC_ISA_NUMPORTS (sizeof(aic_isa_ports) / sizeof(aic_isa_ports[0])) 5952417Sluoqi#define AIC_ISA_PORTSIZE 0x20 6052417Sluoqi 6152417Sluoqistatic int 6252417Sluoqiaic_isa_alloc_resources(device_t dev) 6352417Sluoqi{ 6452417Sluoqi struct aic_isa_softc *sc = device_get_softc(dev); 6552417Sluoqi int rid; 6652417Sluoqi 6752417Sluoqi sc->sc_port = sc->sc_irq = sc->sc_drq = 0; 6852417Sluoqi 6952417Sluoqi rid = 0; 7052417Sluoqi sc->sc_port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 7152417Sluoqi 0ul, ~0ul, AIC_ISA_PORTSIZE, RF_ACTIVE); 7252417Sluoqi if (!sc->sc_port) 7352417Sluoqi return (ENOMEM); 7452417Sluoqi 7552417Sluoqi if (isa_get_irq(dev) != -1) { 7652417Sluoqi rid = 0; 7752417Sluoqi sc->sc_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 7852417Sluoqi 0ul, ~0ul, 1, RF_ACTIVE); 7952417Sluoqi if (!sc->sc_irq) { 8052417Sluoqi aic_isa_release_resources(dev); 8152417Sluoqi return (ENOMEM); 8252417Sluoqi } 8352417Sluoqi } 8452417Sluoqi 8552417Sluoqi if (isa_get_drq(dev) != -1) { 8652417Sluoqi rid = 0; 8752417Sluoqi sc->sc_drq = bus_alloc_resource(dev, SYS_RES_DRQ, &rid, 8852417Sluoqi 0ul, ~0ul, 1, RF_ACTIVE); 8952417Sluoqi if (!sc->sc_drq) { 9052417Sluoqi aic_isa_release_resources(dev); 9152417Sluoqi return (ENOMEM); 9252417Sluoqi } 9352417Sluoqi } 9452417Sluoqi 9552417Sluoqi sc->sc_aic.unit = device_get_unit(dev); 9652417Sluoqi sc->sc_aic.tag = rman_get_bustag(sc->sc_port); 9752417Sluoqi sc->sc_aic.bsh = rman_get_bushandle(sc->sc_port); 9852417Sluoqi return (0); 9952417Sluoqi} 10052417Sluoqi 10152417Sluoqistatic void 10252417Sluoqiaic_isa_release_resources(device_t dev) 10352417Sluoqi{ 10452417Sluoqi struct aic_isa_softc *sc = device_get_softc(dev); 10552417Sluoqi 10652417Sluoqi if (sc->sc_port) 10752417Sluoqi bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->sc_port); 10852417Sluoqi if (sc->sc_irq) 10952417Sluoqi bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_irq); 11052417Sluoqi if (sc->sc_drq) 11152417Sluoqi bus_release_resource(dev, SYS_RES_DRQ, 0, sc->sc_drq); 11252417Sluoqi sc->sc_port = sc->sc_irq = sc->sc_drq = 0; 11352417Sluoqi} 11452417Sluoqi 11552417Sluoqistatic int 11652417Sluoqiaic_isa_probe(device_t dev) 11752417Sluoqi{ 11852417Sluoqi struct aic_isa_softc *sc = device_get_softc(dev); 11952417Sluoqi struct aic_softc *aic = &sc->sc_aic; 12052417Sluoqi int numports, i; 12152417Sluoqi u_int port, *ports; 12252417Sluoqi u_int8_t porta; 12352417Sluoqi 12452417Sluoqi if (isa_get_vendorid(dev)) 12552417Sluoqi return (ENXIO); 12652417Sluoqi 12752417Sluoqi port = isa_get_port(dev); 12852417Sluoqi if (port != -1) { 12952417Sluoqi ports = &port; 13052417Sluoqi numports = 1; 13152417Sluoqi } else { 13252417Sluoqi ports = aic_isa_ports; 13352417Sluoqi numports = AIC_ISA_NUMPORTS; 13452417Sluoqi } 13552417Sluoqi 13652417Sluoqi for (i = 0; i < numports; i++) { 13752417Sluoqi if (bus_set_resource(dev, SYS_RES_IOPORT, 0, ports[i], 13852417Sluoqi AIC_ISA_PORTSIZE)) 13952417Sluoqi continue; 14052417Sluoqi if (aic_isa_alloc_resources(dev)) 14152417Sluoqi continue; 14252417Sluoqi if (!aic_probe(aic)) { 14352417Sluoqi aic_isa_release_resources(dev); 14452417Sluoqi break; 14552417Sluoqi } 14652417Sluoqi aic_isa_release_resources(dev); 14752417Sluoqi } 14852417Sluoqi 14952417Sluoqi if (i == numports) 15052417Sluoqi return (ENXIO); 15152417Sluoqi 15252417Sluoqi porta = aic_inb(aic, PORTA); 15352417Sluoqi if (isa_get_irq(dev) == -1) 15452417Sluoqi bus_set_resource(dev, SYS_RES_IRQ, 0, PORTA_IRQ(porta), 1); 15552417Sluoqi if ((aic->flags & AIC_DMA_ENABLE) && isa_get_drq(dev) == -1) 15652417Sluoqi bus_set_resource(dev, SYS_RES_DRQ, 0, PORTA_DRQ(porta), 1); 15752417Sluoqi return (0); 15852417Sluoqi} 15952417Sluoqi 16052417Sluoqistatic int 16152417Sluoqiaic_isa_attach(device_t dev) 16252417Sluoqi{ 16352417Sluoqi struct aic_isa_softc *sc = device_get_softc(dev); 16452417Sluoqi struct aic_softc *aic = &sc->sc_aic; 16552417Sluoqi int error; 16652417Sluoqi 16752417Sluoqi error = aic_isa_alloc_resources(dev); 16852417Sluoqi if (error) { 16952417Sluoqi device_printf(dev, "resource allocation failed\n"); 17052417Sluoqi return (error); 17152417Sluoqi } 17252417Sluoqi 17352417Sluoqi error = aic_attach(aic); 17452417Sluoqi if (error) { 17552417Sluoqi device_printf(dev, "attach failed\n"); 17652417Sluoqi aic_isa_release_resources(dev); 17752417Sluoqi return (error); 17852417Sluoqi } 17952417Sluoqi 18052417Sluoqi error = bus_setup_intr(dev, sc->sc_irq, INTR_TYPE_CAM, aic_intr, 18152417Sluoqi aic, &sc->sc_ih); 18252417Sluoqi if (error) { 18352417Sluoqi device_printf(dev, "failed to register interrupt handler\n"); 18452417Sluoqi aic_isa_release_resources(dev); 18552417Sluoqi return (error); 18652417Sluoqi } 18752417Sluoqi return (0); 18852417Sluoqi} 18952417Sluoqi 19052417Sluoqistatic int 19152417Sluoqiaic_isa_detach(device_t dev) 19252417Sluoqi{ 19352417Sluoqi struct aic_isa_softc *sc = device_get_softc(dev); 19452417Sluoqi struct aic_softc *aic = &sc->sc_aic; 19552417Sluoqi int error; 19652417Sluoqi 19752417Sluoqi error = aic_detach(aic); 19852417Sluoqi if (error) { 19952417Sluoqi device_printf(dev, "detach failed\n"); 20052417Sluoqi return (error); 20152417Sluoqi } 20252417Sluoqi 20352417Sluoqi error = bus_teardown_intr(dev, sc->sc_irq, sc->sc_ih); 20452417Sluoqi if (error) { 20552417Sluoqi device_printf(dev, "failed to unregister interrupt handler\n"); 20652417Sluoqi } 20752417Sluoqi 20852417Sluoqi aic_isa_release_resources(dev); 20952417Sluoqi return (0); 21052417Sluoqi} 21152417Sluoqi 21252417Sluoqistatic device_method_t aic_isa_methods[] = { 21352417Sluoqi /* Device interface */ 21452417Sluoqi DEVMETHOD(device_probe, aic_isa_probe), 21552417Sluoqi DEVMETHOD(device_attach, aic_isa_attach), 21652417Sluoqi DEVMETHOD(device_detach, aic_isa_detach), 21752417Sluoqi { 0, 0 } 21852417Sluoqi}; 21952417Sluoqi 22052417Sluoqistatic driver_t aic_isa_driver = { 22152417Sluoqi "aic", 22252417Sluoqi aic_isa_methods, sizeof(struct aic_isa_softc), 22352417Sluoqi}; 22452417Sluoqi 22552417Sluoqistatic devclass_t aic_devclass; 22652417Sluoqi 22752417SluoqiDRIVER_MODULE(aic, isa, aic_isa_driver, aic_devclass, 0, 0); 228