aic_isa.c revision 119418
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 27#include <sys/cdefs.h> 28__FBSDID("$FreeBSD: head/sys/dev/aic/aic_isa.c 119418 2003-08-24 17:55:58Z obrien $"); 29 30#include <sys/param.h> 31#include <sys/kernel.h> 32#include <sys/module.h> 33#include <sys/bus.h> 34 35#include <machine/bus_pio.h> 36#include <machine/bus.h> 37#include <machine/resource.h> 38#include <sys/rman.h> 39 40#include <isa/isavar.h> 41#include <dev/aic/aic6360reg.h> 42#include <dev/aic/aicvar.h> 43 44struct aic_isa_softc { 45 struct aic_softc sc_aic; 46 struct resource *sc_port; 47 struct resource *sc_irq; 48 struct resource *sc_drq; 49 void *sc_ih; 50}; 51 52static int aic_isa_alloc_resources(device_t); 53static void aic_isa_release_resources(device_t); 54static int aic_isa_probe(device_t); 55static int aic_isa_attach(device_t); 56 57static u_int aic_isa_ports[] = { 0x340, 0x140 }; 58#define AIC_ISA_NUMPORTS (sizeof(aic_isa_ports) / sizeof(aic_isa_ports[0])) 59#define AIC_ISA_PORTSIZE 0x20 60 61static struct isa_pnp_id aic_ids[] = { 62 { 0x15309004, "Adaptec AHA-1530P" }, 63 { 0x15209004, "Adaptec AHA-1520P" }, 64 { 0 } 65}; 66 67static int 68aic_isa_alloc_resources(device_t dev) 69{ 70 struct aic_isa_softc *sc = device_get_softc(dev); 71 int rid; 72 73 sc->sc_port = sc->sc_irq = sc->sc_drq = 0; 74 75 rid = 0; 76 sc->sc_port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 77 0ul, ~0ul, AIC_ISA_PORTSIZE, RF_ACTIVE); 78 if (!sc->sc_port) { 79 device_printf(dev, "I/O port allocation failed\n"); 80 return (ENOMEM); 81 } 82 83 if (isa_get_irq(dev) != -1) { 84 rid = 0; 85 sc->sc_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 86 0ul, ~0ul, 1, RF_ACTIVE); 87 if (!sc->sc_irq) { 88 device_printf(dev, "IRQ allocation failed\n"); 89 aic_isa_release_resources(dev); 90 return (ENOMEM); 91 } 92 } 93 94 if (isa_get_drq(dev) != -1) { 95 rid = 0; 96 sc->sc_drq = bus_alloc_resource(dev, SYS_RES_DRQ, &rid, 97 0ul, ~0ul, 1, RF_ACTIVE); 98 if (!sc->sc_drq) { 99 device_printf(dev, "DRQ allocation failed\n"); 100 aic_isa_release_resources(dev); 101 return (ENOMEM); 102 } 103 } 104 105 sc->sc_aic.unit = device_get_unit(dev); 106 sc->sc_aic.tag = rman_get_bustag(sc->sc_port); 107 sc->sc_aic.bsh = rman_get_bushandle(sc->sc_port); 108 return (0); 109} 110 111static void 112aic_isa_release_resources(device_t dev) 113{ 114 struct aic_isa_softc *sc = device_get_softc(dev); 115 116 if (sc->sc_port) 117 bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->sc_port); 118 if (sc->sc_irq) 119 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_irq); 120 if (sc->sc_drq) 121 bus_release_resource(dev, SYS_RES_DRQ, 0, sc->sc_drq); 122 sc->sc_port = sc->sc_irq = sc->sc_drq = 0; 123} 124 125static int 126aic_isa_probe(device_t dev) 127{ 128 struct aic_isa_softc *sc = device_get_softc(dev); 129 struct aic_softc *aic = &sc->sc_aic; 130 int numports, i; 131 u_int port, *ports; 132 u_int8_t porta; 133 134 if (ISA_PNP_PROBE(device_get_parent(dev), dev, aic_ids) == ENXIO) 135 return (ENXIO); 136 137 port = isa_get_port(dev); 138 if (port != -1) { 139 ports = &port; 140 numports = 1; 141 } else { 142 ports = aic_isa_ports; 143 numports = AIC_ISA_NUMPORTS; 144 } 145 146 for (i = 0; i < numports; i++) { 147 if (bus_set_resource(dev, SYS_RES_IOPORT, 0, ports[i], 148 AIC_ISA_PORTSIZE)) 149 continue; 150 if (aic_isa_alloc_resources(dev)) 151 continue; 152 if (!aic_probe(aic)) { 153 aic_isa_release_resources(dev); 154 break; 155 } 156 aic_isa_release_resources(dev); 157 } 158 159 if (i == numports) 160 return (ENXIO); 161 162 porta = aic_inb(aic, PORTA); 163 if (isa_get_irq(dev) == -1) 164 bus_set_resource(dev, SYS_RES_IRQ, 0, PORTA_IRQ(porta), 1); 165 if ((aic->flags & AIC_DMA_ENABLE) && isa_get_drq(dev) == -1) 166 bus_set_resource(dev, SYS_RES_DRQ, 0, PORTA_DRQ(porta), 1); 167 device_set_desc(dev, "Adaptec 6260/6360 SCSI controller"); 168 return (0); 169} 170 171static int 172aic_isa_attach(device_t dev) 173{ 174 struct aic_isa_softc *sc = device_get_softc(dev); 175 struct aic_softc *aic = &sc->sc_aic; 176 int error; 177 178 error = aic_isa_alloc_resources(dev); 179 if (error) { 180 device_printf(dev, "resource allocation failed\n"); 181 return (error); 182 } 183 184 error = aic_attach(aic); 185 if (error) { 186 device_printf(dev, "attach failed\n"); 187 aic_isa_release_resources(dev); 188 return (error); 189 } 190 191 error = bus_setup_intr(dev, sc->sc_irq, INTR_TYPE_CAM|INTR_ENTROPY, 192 aic_intr, aic, &sc->sc_ih); 193 if (error) { 194 device_printf(dev, "failed to register interrupt handler\n"); 195 aic_isa_release_resources(dev); 196 return (error); 197 } 198 return (0); 199} 200 201static int 202aic_isa_detach(device_t dev) 203{ 204 struct aic_isa_softc *sc = device_get_softc(dev); 205 struct aic_softc *aic = &sc->sc_aic; 206 int error; 207 208 error = aic_detach(aic); 209 if (error) { 210 device_printf(dev, "detach failed\n"); 211 return (error); 212 } 213 214 error = bus_teardown_intr(dev, sc->sc_irq, sc->sc_ih); 215 if (error) { 216 device_printf(dev, "failed to unregister interrupt handler\n"); 217 } 218 219 aic_isa_release_resources(dev); 220 return (0); 221} 222 223static device_method_t aic_isa_methods[] = { 224 /* Device interface */ 225 DEVMETHOD(device_probe, aic_isa_probe), 226 DEVMETHOD(device_attach, aic_isa_attach), 227 DEVMETHOD(device_detach, aic_isa_detach), 228 { 0, 0 } 229}; 230 231static driver_t aic_isa_driver = { 232 "aic", 233 aic_isa_methods, sizeof(struct aic_isa_softc), 234}; 235 236extern devclass_t aic_devclass; 237 238MODULE_DEPEND(aic, cam, 1,1,1); 239DRIVER_MODULE(aic, isa, aic_isa_driver, aic_devclass, 0, 0); 240