aic_isa.c revision 74370
1/*- 2 * Copyright (c) 1999 Luoqi Chen. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD: head/sys/dev/aic/aic_isa.c 74370 2001-03-16 22:20:19Z ken $ 27 */ 28 29#include <sys/param.h> 30#include <sys/kernel.h> 31#include <sys/module.h> 32#include <sys/bus.h> 33 34#include <machine/bus_pio.h> 35#include <machine/bus.h> 36#include <machine/resource.h> 37#include <sys/rman.h> 38 39#include <isa/isavar.h> 40#include <dev/aic/aic6360reg.h> 41#include <dev/aic/aicvar.h> 42 43struct aic_isa_softc { 44 struct aic_softc sc_aic; 45 struct resource *sc_port; 46 struct resource *sc_irq; 47 struct resource *sc_drq; 48 void *sc_ih; 49}; 50 51static int aic_isa_alloc_resources __P((device_t)); 52static void aic_isa_release_resources __P((device_t)); 53static int aic_isa_probe __P((device_t)); 54static int aic_isa_attach __P((device_t)); 55 56static u_int aic_isa_ports[] = { 0x340, 0x140 }; 57#define AIC_ISA_NUMPORTS (sizeof(aic_isa_ports) / sizeof(aic_isa_ports[0])) 58#define AIC_ISA_PORTSIZE 0x20 59 60static int 61aic_isa_alloc_resources(device_t dev) 62{ 63 struct aic_isa_softc *sc = device_get_softc(dev); 64 int rid; 65 66 sc->sc_port = sc->sc_irq = sc->sc_drq = 0; 67 68 rid = 0; 69 sc->sc_port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 70 0ul, ~0ul, AIC_ISA_PORTSIZE, RF_ACTIVE); 71 if (!sc->sc_port) { 72 device_printf(dev, "I/O port allocation failed\n"); 73 return (ENOMEM); 74 } 75 76 if (isa_get_irq(dev) != -1) { 77 rid = 0; 78 sc->sc_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 79 0ul, ~0ul, 1, RF_ACTIVE); 80 if (!sc->sc_irq) { 81 device_printf(dev, "IRQ allocation failed\n"); 82 aic_isa_release_resources(dev); 83 return (ENOMEM); 84 } 85 } 86 87 if (isa_get_drq(dev) != -1) { 88 rid = 0; 89 sc->sc_drq = bus_alloc_resource(dev, SYS_RES_DRQ, &rid, 90 0ul, ~0ul, 1, RF_ACTIVE); 91 if (!sc->sc_drq) { 92 device_printf(dev, "DRQ allocation failed\n"); 93 aic_isa_release_resources(dev); 94 return (ENOMEM); 95 } 96 } 97 98 sc->sc_aic.unit = device_get_unit(dev); 99 sc->sc_aic.tag = rman_get_bustag(sc->sc_port); 100 sc->sc_aic.bsh = rman_get_bushandle(sc->sc_port); 101 return (0); 102} 103 104static void 105aic_isa_release_resources(device_t dev) 106{ 107 struct aic_isa_softc *sc = device_get_softc(dev); 108 109 if (sc->sc_port) 110 bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->sc_port); 111 if (sc->sc_irq) 112 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_irq); 113 if (sc->sc_drq) 114 bus_release_resource(dev, SYS_RES_DRQ, 0, sc->sc_drq); 115 sc->sc_port = sc->sc_irq = sc->sc_drq = 0; 116} 117 118static int 119aic_isa_probe(device_t dev) 120{ 121 struct aic_isa_softc *sc = device_get_softc(dev); 122 struct aic_softc *aic = &sc->sc_aic; 123 int numports, i; 124 u_int port, *ports; 125 u_int8_t porta; 126 127 if (isa_get_vendorid(dev)) 128 return (ENXIO); 129 130 port = isa_get_port(dev); 131 if (port != -1) { 132 ports = &port; 133 numports = 1; 134 } else { 135 ports = aic_isa_ports; 136 numports = AIC_ISA_NUMPORTS; 137 } 138 139 for (i = 0; i < numports; i++) { 140 if (bus_set_resource(dev, SYS_RES_IOPORT, 0, ports[i], 141 AIC_ISA_PORTSIZE)) 142 continue; 143 if (aic_isa_alloc_resources(dev)) 144 continue; 145 if (!aic_probe(aic)) { 146 aic_isa_release_resources(dev); 147 break; 148 } 149 aic_isa_release_resources(dev); 150 } 151 152 if (i == numports) 153 return (ENXIO); 154 155 porta = aic_inb(aic, PORTA); 156 if (isa_get_irq(dev) == -1) 157 bus_set_resource(dev, SYS_RES_IRQ, 0, PORTA_IRQ(porta), 1); 158 if ((aic->flags & AIC_DMA_ENABLE) && isa_get_drq(dev) == -1) 159 bus_set_resource(dev, SYS_RES_DRQ, 0, PORTA_DRQ(porta), 1); 160 device_set_desc(dev, "Adaptec 6260/6360 SCSI controller"); 161 return (0); 162} 163 164static int 165aic_isa_attach(device_t dev) 166{ 167 struct aic_isa_softc *sc = device_get_softc(dev); 168 struct aic_softc *aic = &sc->sc_aic; 169 int error; 170 171 error = aic_isa_alloc_resources(dev); 172 if (error) { 173 device_printf(dev, "resource allocation failed\n"); 174 return (error); 175 } 176 177 error = aic_attach(aic); 178 if (error) { 179 device_printf(dev, "attach failed\n"); 180 aic_isa_release_resources(dev); 181 return (error); 182 } 183 184 error = bus_setup_intr(dev, sc->sc_irq, INTR_TYPE_CAM|INTR_ENTROPY, 185 aic_intr, aic, &sc->sc_ih); 186 if (error) { 187 device_printf(dev, "failed to register interrupt handler\n"); 188 aic_isa_release_resources(dev); 189 return (error); 190 } 191 return (0); 192} 193 194static int 195aic_isa_detach(device_t dev) 196{ 197 struct aic_isa_softc *sc = device_get_softc(dev); 198 struct aic_softc *aic = &sc->sc_aic; 199 int error; 200 201 error = aic_detach(aic); 202 if (error) { 203 device_printf(dev, "detach failed\n"); 204 return (error); 205 } 206 207 error = bus_teardown_intr(dev, sc->sc_irq, sc->sc_ih); 208 if (error) { 209 device_printf(dev, "failed to unregister interrupt handler\n"); 210 } 211 212 aic_isa_release_resources(dev); 213 return (0); 214} 215 216static device_method_t aic_isa_methods[] = { 217 /* Device interface */ 218 DEVMETHOD(device_probe, aic_isa_probe), 219 DEVMETHOD(device_attach, aic_isa_attach), 220 DEVMETHOD(device_detach, aic_isa_detach), 221 { 0, 0 } 222}; 223 224static driver_t aic_isa_driver = { 225 "aic", 226 aic_isa_methods, sizeof(struct aic_isa_softc), 227}; 228 229extern devclass_t aic_devclass; 230 231MODULE_DEPEND(aic, cam, 1,1,1); 232DRIVER_MODULE(aic, isa, aic_isa_driver, aic_devclass, 0, 0); 233