Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/dev/aic/aic_cbus.c
Version:
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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("$FreeBSD$"); 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.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 43 struct 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 51 static int aic_isa_alloc_resources(device_t); 52 static void aic_isa_release_resources(device_t); 53 static int aic_isa_probe(device_t); 54 static int aic_isa_attach(device_t); 55 56 static u_int aic_isa_ports[] = { 0x1840 }; 57 #define AIC_ISA_NUMPORTS (sizeof(aic_isa_ports) / sizeof(aic_isa_ports[0])) 58 #define AIC_ISA_PORTSIZE 0x20 59 60 #define AIC98_GENERIC 0x00 61 #define AIC98_NEC100 0x01 62 #define AIC_TYPE98(x) (((x) >> 16) & 0x01) 63 64 static bus_addr_t aicport_generic[AIC_ISA_PORTSIZE] = { 65 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 66 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 67 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 68 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 69 }; 70 static bus_addr_t aicport_100[AIC_ISA_PORTSIZE] = { 71 0x00, 0x02, 0x04, 0x06, 0x08, 0x0a, 0x0c, 0x0e, 72 0x10, 0x12, 0x14, 0x16, 0x18, 0x1a, 0x1c, 0x1e, 73 0x20, 0x22, 0x24, 0x26, 0x28, 0x2a, 0x2c, 0x2e, 74 0x30, 0x32, 0x34, 0x36, 0x38, 0x3a, 0x3c, 0x3e, 75 }; 76 77 static struct isa_pnp_id aic_ids[] = { 78 { 0xa180a3b8, "NEC PC9801-100" }, 79 { 0 } 80 }; 81 82 static int 83 aic_isa_alloc_resources(device_t dev) 84 { 85 struct aic_isa_softc *sc = device_get_softc(dev); 86 int rid; 87 bus_addr_t *bs_iat; 88 89 if ((isa_get_logicalid(dev) == 0xa180a3b8) || 90 (AIC_TYPE98(device_get_flags(dev)) == AIC98_NEC100)) 91 bs_iat = aicport_100; 92 else 93 bs_iat = aicport_generic; 94 95 sc->sc_port = sc->sc_irq = sc->sc_drq = 0; 96 97 rid = 0; 98 sc->sc_port = isa_alloc_resourcev(dev, SYS_RES_IOPORT, &rid, 99 bs_iat, AIC_ISA_PORTSIZE, RF_ACTIVE); 100 if (!sc->sc_port) { 101 device_printf(dev, "I/O port allocation failed\n"); 102 return (ENOMEM); 103 } 104 isa_load_resourcev(sc->sc_port, bs_iat, AIC_ISA_PORTSIZE); 105 106 if (isa_get_irq(dev) != -1) { 107 rid = 0; 108 sc->sc_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, 109 RF_ACTIVE); 110 if (!sc->sc_irq) { 111 device_printf(dev, "IRQ allocation failed\n"); 112 aic_isa_release_resources(dev); 113 return (ENOMEM); 114 } 115 } 116 117 if (isa_get_drq(dev) != -1) { 118 rid = 0; 119 sc->sc_drq = bus_alloc_resource_any(dev, SYS_RES_DRQ, &rid, 120 RF_ACTIVE); 121 if (!sc->sc_drq) { 122 device_printf(dev, "DRQ allocation failed\n"); 123 aic_isa_release_resources(dev); 124 return (ENOMEM); 125 } 126 } 127 128 sc->sc_aic.dev = dev; 129 sc->sc_aic.unit = device_get_unit(dev); 130 sc->sc_aic.tag = rman_get_bustag(sc->sc_port); 131 sc->sc_aic.bsh = rman_get_bushandle(sc->sc_port); 132 return (0); 133 } 134 135 static void 136 aic_isa_release_resources(device_t dev) 137 { 138 struct aic_isa_softc *sc = device_get_softc(dev); 139 140 if (sc->sc_port) 141 bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->sc_port); 142 if (sc->sc_irq) 143 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_irq); 144 if (sc->sc_drq) 145 bus_release_resource(dev, SYS_RES_DRQ, 0, sc->sc_drq); 146 sc->sc_port = sc->sc_irq = sc->sc_drq = 0; 147 } 148 149 static int 150 aic_isa_probe(device_t dev) 151 { 152 struct aic_isa_softc *sc = device_get_softc(dev); 153 struct aic_softc *aic = &sc->sc_aic; 154 int numports, i; 155 u_int port, *ports; 156 u_int8_t porta; 157 158 if (ISA_PNP_PROBE(device_get_parent(dev), dev, aic_ids) == ENXIO) 159 return (ENXIO); 160 161 port = isa_get_port(dev); 162 if (port != -1) { 163 ports = &port; 164 numports = 1; 165 } else { 166 ports = aic_isa_ports; 167 numports = AIC_ISA_NUMPORTS; 168 } 169 170 for (i = 0; i < numports; i++) { 171 if (bus_set_resource(dev, SYS_RES_IOPORT, 0, ports[i], 1)) 172 continue; 173 if (aic_isa_alloc_resources(dev)) 174 continue; 175 if (!aic_probe(aic)) { 176 aic_isa_release_resources(dev); 177 break; 178 } 179 aic_isa_release_resources(dev); 180 } 181 182 if (i == numports) 183 return (ENXIO); 184 185 porta = aic_inb(aic, PORTA); 186 if (isa_get_irq(dev) == -1) 187 bus_set_resource(dev, SYS_RES_IRQ, 0, PORTA_IRQ(porta), 1); 188 if ((aic->flags & AIC_DMA_ENABLE) && isa_get_drq(dev) == -1) 189 bus_set_resource(dev, SYS_RES_DRQ, 0, PORTA_DRQ(porta), 1); 190 device_set_desc(dev, "Adaptec 6260/6360 SCSI controller"); 191 return (0); 192 } 193 194 static int 195 aic_isa_attach(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_isa_alloc_resources(dev); 202 if (error) { 203 device_printf(dev, "resource allocation failed\n"); 204 return (error); 205 } 206 207 error = aic_attach(aic); 208 if (error) { 209 device_printf(dev, "attach failed\n"); 210 aic_isa_release_resources(dev); 211 return (error); 212 } 213 214 error = bus_setup_intr(dev, sc->sc_irq, INTR_TYPE_CAM|INTR_ENTROPY, 215 NULL, aic_intr, aic, &sc->sc_ih); 216 if (error) { 217 device_printf(dev, "failed to register interrupt handler\n"); 218 aic_isa_release_resources(dev); 219 return (error); 220 } 221 return (0); 222 } 223 224 static int 225 aic_isa_detach(device_t dev) 226 { 227 struct aic_isa_softc *sc = device_get_softc(dev); 228 struct aic_softc *aic = &sc->sc_aic; 229 int error; 230 231 error = aic_detach(aic); 232 if (error) { 233 device_printf(dev, "detach failed\n"); 234 return (error); 235 } 236 237 error = bus_teardown_intr(dev, sc->sc_irq, sc->sc_ih); 238 if (error) { 239 device_printf(dev, "failed to unregister interrupt handler\n"); 240 } 241 242 aic_isa_release_resources(dev); 243 return (0); 244 } 245 246 static device_method_t aic_isa_methods[] = { 247 /* Device interface */ 248 DEVMETHOD(device_probe, aic_isa_probe), 249 DEVMETHOD(device_attach, aic_isa_attach), 250 DEVMETHOD(device_detach, aic_isa_detach), 251 { 0, 0 } 252 }; 253 254 static driver_t aic_isa_driver = { 255 "aic", 256 aic_isa_methods, sizeof(struct aic_isa_softc), 257 }; 258 259 extern devclass_t aic_devclass; 260 261 MODULE_DEPEND(aic, cam, 1,1,1); 262 DRIVER_MODULE(aic, isa, aic_isa_driver, aic_devclass, 0, 0);
Cache object: 05ff0bebd37a5a54f427f08d73331947
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