aic_cbus.c revision 61835
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 61835 2000-06-19 22:16:14Z brian $ 27 */ 28 29#include <sys/param.h> 30#include <sys/systm.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 __P((device_t)); 53static void aic_isa_release_resources __P((device_t)); 54static int aic_isa_probe __P((device_t)); 55static int aic_isa_attach __P((device_t)); 56 57#ifdef PC98 58static u_int aic_isa_ports[] = { 0x1840 }; 59#else 60static u_int aic_isa_ports[] = { 0x340, 0x140 }; 61#endif 62#define AIC_ISA_NUMPORTS (sizeof(aic_isa_ports) / sizeof(aic_isa_ports[0])) 63#define AIC_ISA_PORTSIZE 0x20 64 65#ifdef PC98 66#define AIC98_GENERIC 0x00 67#define AIC98_NEC100 0x01 68#define AIC_TYPE98(x) (((x) >> 16) & 0x01) 69 70static bus_addr_t aicport_generic[AIC_ISA_PORTSIZE] = { 71 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 72 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 73 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 74 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 75}; 76static bus_addr_t aicport_100[AIC_ISA_PORTSIZE] = { 77 0x00, 0x02, 0x04, 0x06, 0x08, 0x0a, 0x0c, 0x0e, 78 0x10, 0x12, 0x14, 0x16, 0x18, 0x1a, 0x1c, 0x1e, 79 0x20, 0x22, 0x24, 0x26, 0x28, 0x2a, 0x2c, 0x2e, 80 0x30, 0x32, 0x34, 0x36, 0x38, 0x3a, 0x3c, 0x3e, 81}; 82 83static struct isa_pnp_id aic_ids[] = { 84 { 0xa180a3b8, "NEC PC9801-100"}, 85 {0} 86}; 87#endif 88 89static int 90aic_isa_alloc_resources(device_t dev) 91{ 92 struct aic_isa_softc *sc = device_get_softc(dev); 93 int rid; 94#ifdef PC98 95 bus_addr_t *bs_iat; 96 97 if ((isa_get_logicalid(dev) == 0xa180a3b8) || 98 (AIC_TYPE98(device_get_flags(dev)) == AIC98_NEC100)) 99 bs_iat = aicport_100; 100 else 101 bs_iat = aicport_generic; 102#endif 103 104 sc->sc_port = sc->sc_irq = sc->sc_drq = 0; 105 106 rid = 0; 107#ifdef PC98 108 sc->sc_port = isa_alloc_resourcev(dev, SYS_RES_IOPORT, &rid, 109 bs_iat, AIC_ISA_PORTSIZE, RF_ACTIVE); 110#else 111 sc->sc_port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 112 0ul, ~0ul, AIC_ISA_PORTSIZE, RF_ACTIVE); 113#endif 114 if (!sc->sc_port) 115 return (ENOMEM); 116#ifdef PC98 117 isa_load_resourcev(sc->sc_port, bs_iat, AIC_ISA_PORTSIZE); 118#endif 119 120 if (isa_get_irq(dev) != -1) { 121 rid = 0; 122 sc->sc_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 123 0ul, ~0ul, 1, RF_ACTIVE); 124 if (!sc->sc_irq) { 125 aic_isa_release_resources(dev); 126 return (ENOMEM); 127 } 128 } 129 130 if (isa_get_drq(dev) != -1) { 131 rid = 0; 132 sc->sc_drq = bus_alloc_resource(dev, SYS_RES_DRQ, &rid, 133 0ul, ~0ul, 1, RF_ACTIVE); 134 if (!sc->sc_drq) { 135 aic_isa_release_resources(dev); 136 return (ENOMEM); 137 } 138 } 139 140 sc->sc_aic.unit = device_get_unit(dev); 141 sc->sc_aic.tag = rman_get_bustag(sc->sc_port); 142 sc->sc_aic.bsh = rman_get_bushandle(sc->sc_port); 143 return (0); 144} 145 146static void 147aic_isa_release_resources(device_t dev) 148{ 149 struct aic_isa_softc *sc = device_get_softc(dev); 150 151 if (sc->sc_port) 152 bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->sc_port); 153 if (sc->sc_irq) 154 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_irq); 155 if (sc->sc_drq) 156 bus_release_resource(dev, SYS_RES_DRQ, 0, sc->sc_drq); 157 sc->sc_port = sc->sc_irq = sc->sc_drq = 0; 158} 159 160static int 161aic_isa_probe(device_t dev) 162{ 163 struct aic_isa_softc *sc = device_get_softc(dev); 164 struct aic_softc *aic = &sc->sc_aic; 165 int numports, i; 166 u_int port, *ports; 167 u_int8_t porta; 168 169#ifdef PC98 170 if (ISA_PNP_PROBE(device_get_parent(dev), dev, aic_ids) == ENXIO) 171#else 172 if (isa_get_vendorid(dev)) 173#endif 174 return (ENXIO); 175 176 port = isa_get_port(dev); 177 if (port != -1) { 178 ports = &port; 179 numports = 1; 180 } else { 181 ports = aic_isa_ports; 182 numports = AIC_ISA_NUMPORTS; 183 } 184 185 for (i = 0; i < numports; i++) { 186#ifdef PC98 187 if (bus_set_resource(dev, SYS_RES_IOPORT, 0, ports[i], 1)) 188 continue; 189#else 190 if (bus_set_resource(dev, SYS_RES_IOPORT, 0, ports[i], 191 AIC_ISA_PORTSIZE)) 192 continue; 193#endif 194 if (aic_isa_alloc_resources(dev)) 195 continue; 196 if (!aic_probe(aic)) { 197 aic_isa_release_resources(dev); 198 break; 199 } 200 aic_isa_release_resources(dev); 201 } 202 203 if (i == numports) 204 return (ENXIO); 205 206 porta = aic_inb(aic, PORTA); 207 if (isa_get_irq(dev) == -1) 208 bus_set_resource(dev, SYS_RES_IRQ, 0, PORTA_IRQ(porta), 1); 209 if ((aic->flags & AIC_DMA_ENABLE) && isa_get_drq(dev) == -1) 210 bus_set_resource(dev, SYS_RES_DRQ, 0, PORTA_DRQ(porta), 1); 211 device_set_desc(dev, "Adaptec 6260/6360 SCSI controller"); 212 return (0); 213} 214 215static int 216aic_isa_attach(device_t dev) 217{ 218 struct aic_isa_softc *sc = device_get_softc(dev); 219 struct aic_softc *aic = &sc->sc_aic; 220 int error; 221 222 error = aic_isa_alloc_resources(dev); 223 if (error) { 224 device_printf(dev, "resource allocation failed\n"); 225 return (error); 226 } 227 228 error = aic_attach(aic); 229 if (error) { 230 device_printf(dev, "attach failed\n"); 231 aic_isa_release_resources(dev); 232 return (error); 233 } 234 235 error = bus_setup_intr(dev, sc->sc_irq, INTR_TYPE_CAM, aic_intr, 236 aic, &sc->sc_ih); 237 if (error) { 238 device_printf(dev, "failed to register interrupt handler\n"); 239 aic_isa_release_resources(dev); 240 return (error); 241 } 242 return (0); 243} 244 245static int 246aic_isa_detach(device_t dev) 247{ 248 struct aic_isa_softc *sc = device_get_softc(dev); 249 struct aic_softc *aic = &sc->sc_aic; 250 int error; 251 252 error = aic_detach(aic); 253 if (error) { 254 device_printf(dev, "detach failed\n"); 255 return (error); 256 } 257 258 error = bus_teardown_intr(dev, sc->sc_irq, sc->sc_ih); 259 if (error) { 260 device_printf(dev, "failed to unregister interrupt handler\n"); 261 } 262 263 aic_isa_release_resources(dev); 264 return (0); 265} 266 267static device_method_t aic_isa_methods[] = { 268 /* Device interface */ 269 DEVMETHOD(device_probe, aic_isa_probe), 270 DEVMETHOD(device_attach, aic_isa_attach), 271 DEVMETHOD(device_detach, aic_isa_detach), 272 { 0, 0 } 273}; 274 275static driver_t aic_isa_driver = { 276 "aic", 277 aic_isa_methods, sizeof(struct aic_isa_softc), 278}; 279 280extern devclass_t aic_devclass; 281 282DRIVER_MODULE(aic, isa, aic_isa_driver, aic_devclass, 0, 0); 283