aic_isa.c revision 77844
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 77844 2001-06-06 22:32:29Z imp $ 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 struct isa_pnp_id aic_ids[] = { 61 { 0x15309004, "Adaptec AHA-1530P" }, 62 { 0x15209004, "Adaptec AHA-1520P" }, 63 { 0 } 64}; 65 66static int 67aic_isa_alloc_resources(device_t dev) 68{ 69 struct aic_isa_softc *sc = device_get_softc(dev); 70 int rid; 71 72 sc->sc_port = sc->sc_irq = sc->sc_drq = 0; 73 74 rid = 0; 75 sc->sc_port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 76 0ul, ~0ul, AIC_ISA_PORTSIZE, RF_ACTIVE); 77 if (!sc->sc_port) { 78 device_printf(dev, "I/O port allocation failed\n"); 79 return (ENOMEM); 80 } 81 82 if (isa_get_irq(dev) != -1) { 83 rid = 0; 84 sc->sc_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 85 0ul, ~0ul, 1, RF_ACTIVE); 86 if (!sc->sc_irq) { 87 device_printf(dev, "IRQ allocation failed\n"); 88 aic_isa_release_resources(dev); 89 return (ENOMEM); 90 } 91 } 92 93 if (isa_get_drq(dev) != -1) { 94 rid = 0; 95 sc->sc_drq = bus_alloc_resource(dev, SYS_RES_DRQ, &rid, 96 0ul, ~0ul, 1, RF_ACTIVE); 97 if (!sc->sc_drq) { 98 device_printf(dev, "DRQ allocation failed\n"); 99 aic_isa_release_resources(dev); 100 return (ENOMEM); 101 } 102 } 103 104 sc->sc_aic.unit = device_get_unit(dev); 105 sc->sc_aic.tag = rman_get_bustag(sc->sc_port); 106 sc->sc_aic.bsh = rman_get_bushandle(sc->sc_port); 107 return (0); 108} 109 110static void 111aic_isa_release_resources(device_t dev) 112{ 113 struct aic_isa_softc *sc = device_get_softc(dev); 114 115 if (sc->sc_port) 116 bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->sc_port); 117 if (sc->sc_irq) 118 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_irq); 119 if (sc->sc_drq) 120 bus_release_resource(dev, SYS_RES_DRQ, 0, sc->sc_drq); 121 sc->sc_port = sc->sc_irq = sc->sc_drq = 0; 122} 123 124static int 125aic_isa_probe(device_t dev) 126{ 127 struct aic_isa_softc *sc = device_get_softc(dev); 128 struct aic_softc *aic = &sc->sc_aic; 129 int numports, i; 130 u_int port, *ports; 131 u_int8_t porta; 132 133 if (ISA_PNP_PROBE(device_get_parent(dev), dev, aic_ids) == ENXIO) 134 return (ENXIO); 135 136 port = isa_get_port(dev); 137 if (port != -1) { 138 ports = &port; 139 numports = 1; 140 } else { 141 ports = aic_isa_ports; 142 numports = AIC_ISA_NUMPORTS; 143 } 144 145 for (i = 0; i < numports; i++) { 146 if (bus_set_resource(dev, SYS_RES_IOPORT, 0, ports[i], 147 AIC_ISA_PORTSIZE)) 148 continue; 149 if (aic_isa_alloc_resources(dev)) 150 continue; 151 if (!aic_probe(aic)) { 152 aic_isa_release_resources(dev); 153 break; 154 } 155 aic_isa_release_resources(dev); 156 } 157 158 if (i == numports) 159 return (ENXIO); 160 161 porta = aic_inb(aic, PORTA); 162 if (isa_get_irq(dev) == -1) 163 bus_set_resource(dev, SYS_RES_IRQ, 0, PORTA_IRQ(porta), 1); 164 if ((aic->flags & AIC_DMA_ENABLE) && isa_get_drq(dev) == -1) 165 bus_set_resource(dev, SYS_RES_DRQ, 0, PORTA_DRQ(porta), 1); 166 device_set_desc(dev, "Adaptec 6260/6360 SCSI controller"); 167 return (0); 168} 169 170static int 171aic_isa_attach(device_t dev) 172{ 173 struct aic_isa_softc *sc = device_get_softc(dev); 174 struct aic_softc *aic = &sc->sc_aic; 175 int error; 176 177 error = aic_isa_alloc_resources(dev); 178 if (error) { 179 device_printf(dev, "resource allocation failed\n"); 180 return (error); 181 } 182 183 error = aic_attach(aic); 184 if (error) { 185 device_printf(dev, "attach failed\n"); 186 aic_isa_release_resources(dev); 187 return (error); 188 } 189 190 error = bus_setup_intr(dev, sc->sc_irq, INTR_TYPE_CAM|INTR_ENTROPY, 191 aic_intr, aic, &sc->sc_ih); 192 if (error) { 193 device_printf(dev, "failed to register interrupt handler\n"); 194 aic_isa_release_resources(dev); 195 return (error); 196 } 197 return (0); 198} 199 200static int 201aic_isa_detach(device_t dev) 202{ 203 struct aic_isa_softc *sc = device_get_softc(dev); 204 struct aic_softc *aic = &sc->sc_aic; 205 int error; 206 207 error = aic_detach(aic); 208 if (error) { 209 device_printf(dev, "detach failed\n"); 210 return (error); 211 } 212 213 error = bus_teardown_intr(dev, sc->sc_irq, sc->sc_ih); 214 if (error) { 215 device_printf(dev, "failed to unregister interrupt handler\n"); 216 } 217 218 aic_isa_release_resources(dev); 219 return (0); 220} 221 222static device_method_t aic_isa_methods[] = { 223 /* Device interface */ 224 DEVMETHOD(device_probe, aic_isa_probe), 225 DEVMETHOD(device_attach, aic_isa_attach), 226 DEVMETHOD(device_detach, aic_isa_detach), 227 { 0, 0 } 228}; 229 230static driver_t aic_isa_driver = { 231 "aic", 232 aic_isa_methods, sizeof(struct aic_isa_softc), 233}; 234 235extern devclass_t aic_devclass; 236 237MODULE_DEPEND(aic, cam, 1,1,1); 238DRIVER_MODULE(aic, isa, aic_isa_driver, aic_devclass, 0, 0); 239