aic_cbus.c revision 78807
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_cbus.c 78807 2001-06-26 11:35:46Z nyan $ 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 56#ifdef PC98 57static u_int aic_isa_ports[] = { 0x1840 }; 58#else 59static u_int aic_isa_ports[] = { 0x340, 0x140 }; 60#endif 61#define AIC_ISA_NUMPORTS (sizeof(aic_isa_ports) / sizeof(aic_isa_ports[0])) 62#define AIC_ISA_PORTSIZE 0x20 63 64#ifdef PC98 65#define AIC98_GENERIC 0x00 66#define AIC98_NEC100 0x01 67#define AIC_TYPE98(x) (((x) >> 16) & 0x01) 68 69static bus_addr_t aicport_generic[AIC_ISA_PORTSIZE] = { 70 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 71 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 72 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 73 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 74}; 75static bus_addr_t aicport_100[AIC_ISA_PORTSIZE] = { 76 0x00, 0x02, 0x04, 0x06, 0x08, 0x0a, 0x0c, 0x0e, 77 0x10, 0x12, 0x14, 0x16, 0x18, 0x1a, 0x1c, 0x1e, 78 0x20, 0x22, 0x24, 0x26, 0x28, 0x2a, 0x2c, 0x2e, 79 0x30, 0x32, 0x34, 0x36, 0x38, 0x3a, 0x3c, 0x3e, 80}; 81#endif 82 83static struct isa_pnp_id aic_ids[] = { 84 { 0xa180a3b8, "NEC PC9801-100" }, 85 { 0 } 86}; 87 88static int 89aic_isa_alloc_resources(device_t dev) 90{ 91 struct aic_isa_softc *sc = device_get_softc(dev); 92 int rid; 93#ifdef PC98 94 bus_addr_t *bs_iat; 95 96 if ((isa_get_logicalid(dev) == 0xa180a3b8) || 97 (AIC_TYPE98(device_get_flags(dev)) == AIC98_NEC100)) 98 bs_iat = aicport_100; 99 else 100 bs_iat = aicport_generic; 101#endif 102 103 sc->sc_port = sc->sc_irq = sc->sc_drq = 0; 104 105 rid = 0; 106#ifdef PC98 107 sc->sc_port = isa_alloc_resourcev(dev, SYS_RES_IOPORT, &rid, 108 bs_iat, AIC_ISA_PORTSIZE, RF_ACTIVE); 109#else 110 sc->sc_port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 111 0ul, ~0ul, AIC_ISA_PORTSIZE, RF_ACTIVE); 112#endif 113 if (!sc->sc_port) { 114 device_printf(dev, "I/O port allocation failed\n"); 115 return (ENOMEM); 116 } 117#ifdef PC98 118 isa_load_resourcev(sc->sc_port, bs_iat, AIC_ISA_PORTSIZE); 119#endif 120 121 if (isa_get_irq(dev) != -1) { 122 rid = 0; 123 sc->sc_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 124 0ul, ~0ul, 1, RF_ACTIVE); 125 if (!sc->sc_irq) { 126 device_printf(dev, "IRQ allocation failed\n"); 127 aic_isa_release_resources(dev); 128 return (ENOMEM); 129 } 130 } 131 132 if (isa_get_drq(dev) != -1) { 133 rid = 0; 134 sc->sc_drq = bus_alloc_resource(dev, SYS_RES_DRQ, &rid, 135 0ul, ~0ul, 1, RF_ACTIVE); 136 if (!sc->sc_drq) { 137 device_printf(dev, "DRQ allocation failed\n"); 138 aic_isa_release_resources(dev); 139 return (ENOMEM); 140 } 141 } 142 143 sc->sc_aic.unit = device_get_unit(dev); 144 sc->sc_aic.tag = rman_get_bustag(sc->sc_port); 145 sc->sc_aic.bsh = rman_get_bushandle(sc->sc_port); 146 return (0); 147} 148 149static void 150aic_isa_release_resources(device_t dev) 151{ 152 struct aic_isa_softc *sc = device_get_softc(dev); 153 154 if (sc->sc_port) 155 bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->sc_port); 156 if (sc->sc_irq) 157 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_irq); 158 if (sc->sc_drq) 159 bus_release_resource(dev, SYS_RES_DRQ, 0, sc->sc_drq); 160 sc->sc_port = sc->sc_irq = sc->sc_drq = 0; 161} 162 163static int 164aic_isa_probe(device_t dev) 165{ 166 struct aic_isa_softc *sc = device_get_softc(dev); 167 struct aic_softc *aic = &sc->sc_aic; 168 int numports, i; 169 u_int port, *ports; 170 u_int8_t porta; 171 172 if (ISA_PNP_PROBE(device_get_parent(dev), dev, aic_ids) == ENXIO) 173 return (ENXIO); 174 175 port = isa_get_port(dev); 176 if (port != -1) { 177 ports = &port; 178 numports = 1; 179 } else { 180 ports = aic_isa_ports; 181 numports = AIC_ISA_NUMPORTS; 182 } 183 184 for (i = 0; i < numports; i++) { 185#ifdef PC98 186 if (bus_set_resource(dev, SYS_RES_IOPORT, 0, ports[i], 1)) 187 continue; 188#else 189 if (bus_set_resource(dev, SYS_RES_IOPORT, 0, ports[i], 190 AIC_ISA_PORTSIZE)) 191 continue; 192#endif 193 if (aic_isa_alloc_resources(dev)) 194 continue; 195 if (!aic_probe(aic)) { 196 aic_isa_release_resources(dev); 197 break; 198 } 199 aic_isa_release_resources(dev); 200 } 201 202 if (i == numports) 203 return (ENXIO); 204 205 porta = aic_inb(aic, PORTA); 206 if (isa_get_irq(dev) == -1) 207 bus_set_resource(dev, SYS_RES_IRQ, 0, PORTA_IRQ(porta), 1); 208 if ((aic->flags & AIC_DMA_ENABLE) && isa_get_drq(dev) == -1) 209 bus_set_resource(dev, SYS_RES_DRQ, 0, PORTA_DRQ(porta), 1); 210 device_set_desc(dev, "Adaptec 6260/6360 SCSI controller"); 211 return (0); 212} 213 214static int 215aic_isa_attach(device_t dev) 216{ 217 struct aic_isa_softc *sc = device_get_softc(dev); 218 struct aic_softc *aic = &sc->sc_aic; 219 int error; 220 221 error = aic_isa_alloc_resources(dev); 222 if (error) { 223 device_printf(dev, "resource allocation failed\n"); 224 return (error); 225 } 226 227 error = aic_attach(aic); 228 if (error) { 229 device_printf(dev, "attach failed\n"); 230 aic_isa_release_resources(dev); 231 return (error); 232 } 233 234 error = bus_setup_intr(dev, sc->sc_irq, INTR_TYPE_CAM|INTR_ENTROPY, 235 aic_intr, aic, &sc->sc_ih); 236 if (error) { 237 device_printf(dev, "failed to register interrupt handler\n"); 238 aic_isa_release_resources(dev); 239 return (error); 240 } 241 return (0); 242} 243 244static int 245aic_isa_detach(device_t dev) 246{ 247 struct aic_isa_softc *sc = device_get_softc(dev); 248 struct aic_softc *aic = &sc->sc_aic; 249 int error; 250 251 error = aic_detach(aic); 252 if (error) { 253 device_printf(dev, "detach failed\n"); 254 return (error); 255 } 256 257 error = bus_teardown_intr(dev, sc->sc_irq, sc->sc_ih); 258 if (error) { 259 device_printf(dev, "failed to unregister interrupt handler\n"); 260 } 261 262 aic_isa_release_resources(dev); 263 return (0); 264} 265 266static device_method_t aic_isa_methods[] = { 267 /* Device interface */ 268 DEVMETHOD(device_probe, aic_isa_probe), 269 DEVMETHOD(device_attach, aic_isa_attach), 270 DEVMETHOD(device_detach, aic_isa_detach), 271 { 0, 0 } 272}; 273 274static driver_t aic_isa_driver = { 275 "aic", 276 aic_isa_methods, sizeof(struct aic_isa_softc), 277}; 278 279extern devclass_t aic_devclass; 280 281MODULE_DEPEND(aic, cam, 1,1,1); 282DRIVER_MODULE(aic, isa, aic_isa_driver, aic_devclass, 0, 0); 283