aic_cbus.c revision 145009
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_cbus.c 145009 2005-04-13 13:02:58Z nyan $"); 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 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(device_t); 52static void aic_isa_release_resources(device_t); 53static int aic_isa_probe(device_t); 54static int aic_isa_attach(device_t); 55 56static 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 64static 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}; 70static 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 77static struct isa_pnp_id aic_ids[] = { 78 { 0xa180a3b8, "NEC PC9801-100" }, 79 { 0 } 80}; 81 82static int 83aic_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.unit = device_get_unit(dev); 129 sc->sc_aic.tag = rman_get_bustag(sc->sc_port); 130 sc->sc_aic.bsh = rman_get_bushandle(sc->sc_port); 131 return (0); 132} 133 134static void 135aic_isa_release_resources(device_t dev) 136{ 137 struct aic_isa_softc *sc = device_get_softc(dev); 138 139 if (sc->sc_port) 140 bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->sc_port); 141 if (sc->sc_irq) 142 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_irq); 143 if (sc->sc_drq) 144 bus_release_resource(dev, SYS_RES_DRQ, 0, sc->sc_drq); 145 sc->sc_port = sc->sc_irq = sc->sc_drq = 0; 146} 147 148static int 149aic_isa_probe(device_t dev) 150{ 151 struct aic_isa_softc *sc = device_get_softc(dev); 152 struct aic_softc *aic = &sc->sc_aic; 153 int numports, i; 154 u_int port, *ports; 155 u_int8_t porta; 156 157 if (ISA_PNP_PROBE(device_get_parent(dev), dev, aic_ids) == ENXIO) 158 return (ENXIO); 159 160 port = isa_get_port(dev); 161 if (port != -1) { 162 ports = &port; 163 numports = 1; 164 } else { 165 ports = aic_isa_ports; 166 numports = AIC_ISA_NUMPORTS; 167 } 168 169 for (i = 0; i < numports; i++) { 170 if (bus_set_resource(dev, SYS_RES_IOPORT, 0, ports[i], 1)) 171 continue; 172 if (aic_isa_alloc_resources(dev)) 173 continue; 174 if (!aic_probe(aic)) { 175 aic_isa_release_resources(dev); 176 break; 177 } 178 aic_isa_release_resources(dev); 179 } 180 181 if (i == numports) 182 return (ENXIO); 183 184 porta = aic_inb(aic, PORTA); 185 if (isa_get_irq(dev) == -1) 186 bus_set_resource(dev, SYS_RES_IRQ, 0, PORTA_IRQ(porta), 1); 187 if ((aic->flags & AIC_DMA_ENABLE) && isa_get_drq(dev) == -1) 188 bus_set_resource(dev, SYS_RES_DRQ, 0, PORTA_DRQ(porta), 1); 189 device_set_desc(dev, "Adaptec 6260/6360 SCSI controller"); 190 return (0); 191} 192 193static int 194aic_isa_attach(device_t dev) 195{ 196 struct aic_isa_softc *sc = device_get_softc(dev); 197 struct aic_softc *aic = &sc->sc_aic; 198 int error; 199 200 error = aic_isa_alloc_resources(dev); 201 if (error) { 202 device_printf(dev, "resource allocation failed\n"); 203 return (error); 204 } 205 206 error = aic_attach(aic); 207 if (error) { 208 device_printf(dev, "attach failed\n"); 209 aic_isa_release_resources(dev); 210 return (error); 211 } 212 213 error = bus_setup_intr(dev, sc->sc_irq, INTR_TYPE_CAM|INTR_ENTROPY, 214 aic_intr, aic, &sc->sc_ih); 215 if (error) { 216 device_printf(dev, "failed to register interrupt handler\n"); 217 aic_isa_release_resources(dev); 218 return (error); 219 } 220 return (0); 221} 222 223static int 224aic_isa_detach(device_t dev) 225{ 226 struct aic_isa_softc *sc = device_get_softc(dev); 227 struct aic_softc *aic = &sc->sc_aic; 228 int error; 229 230 error = aic_detach(aic); 231 if (error) { 232 device_printf(dev, "detach failed\n"); 233 return (error); 234 } 235 236 error = bus_teardown_intr(dev, sc->sc_irq, sc->sc_ih); 237 if (error) { 238 device_printf(dev, "failed to unregister interrupt handler\n"); 239 } 240 241 aic_isa_release_resources(dev); 242 return (0); 243} 244 245static device_method_t aic_isa_methods[] = { 246 /* Device interface */ 247 DEVMETHOD(device_probe, aic_isa_probe), 248 DEVMETHOD(device_attach, aic_isa_attach), 249 DEVMETHOD(device_detach, aic_isa_detach), 250 { 0, 0 } 251}; 252 253static driver_t aic_isa_driver = { 254 "aic", 255 aic_isa_methods, sizeof(struct aic_isa_softc), 256}; 257 258extern devclass_t aic_devclass; 259 260MODULE_DEPEND(aic, cam, 1,1,1); 261DRIVER_MODULE(aic, isa, aic_isa_driver, aic_devclass, 0, 0); 262