1/*- 2 * Copyright (c) 2002 - 2008 S��ren Schmidt <sos@FreeBSD.org> 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 * without modification, immediately at the beginning of the file. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> 28__FBSDID("$FreeBSD: releng/11.0/sys/dev/ata/ata-cbus.c 296137 2016-02-27 03:38:01Z jhibbits $"); 29 30#include <sys/param.h> 31#include <sys/systm.h> 32#include <sys/kernel.h> 33#include <sys/ata.h> 34#include <sys/bus.h> 35#include <sys/malloc.h> 36#include <sys/module.h> 37#include <sys/conf.h> 38#include <sys/sema.h> 39#include <sys/taskqueue.h> 40#include <vm/uma.h> 41#include <machine/resource.h> 42#include <machine/bus.h> 43#include <sys/rman.h> 44#include <isa/isavar.h> 45#include <dev/ata/ata-all.h> 46#include <ata_if.h> 47 48/* local vars */ 49struct ata_cbus_controller { 50 struct resource *io; 51 struct resource *ctlio; 52 struct resource *bankio; 53 struct resource *irq; 54 void *ih; 55 int channels; 56 struct { 57 void (*function)(void *); 58 void *argument; 59 } interrupt[2]; 60}; 61 62/* local prototypes */ 63static void ata_cbus_intr(void *); 64 65static int 66ata_cbus_probe(device_t dev) 67{ 68 struct resource *io; 69 int rid; 70 rman_res_t tmp; 71 72 /* dont probe PnP devices */ 73 if (isa_get_vendorid(dev)) 74 return (ENXIO); 75 76 /* allocate the ioport range */ 77 rid = ATA_IOADDR_RID; 78 if (!(io = bus_alloc_resource_anywhere(dev, SYS_RES_IOPORT, &rid, 79 ATA_PC98_IOSIZE, RF_ACTIVE))) 80 return ENOMEM; 81 82 /* calculate & set the altport range */ 83 rid = ATA_PC98_CTLADDR_RID; 84 if (bus_get_resource(dev, SYS_RES_IOPORT, rid, &tmp, &tmp)) { 85 bus_set_resource(dev, SYS_RES_IOPORT, rid, 86 rman_get_start(io)+ATA_PC98_CTLOFFSET, ATA_CTLIOSIZE); 87 } 88 89 /* calculate & set the bank range */ 90 rid = ATA_PC98_BANKADDR_RID; 91 if (bus_get_resource(dev, SYS_RES_IOPORT, rid, &tmp, &tmp)) { 92 bus_set_resource(dev, SYS_RES_IOPORT, rid, 93 ATA_PC98_BANK, ATA_PC98_BANKIOSIZE); 94 } 95 96 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, io); 97 return 0; 98} 99 100static int 101ata_cbus_attach(device_t dev) 102{ 103 struct ata_cbus_controller *ctlr = device_get_softc(dev); 104 device_t child; 105 int rid, unit; 106 107 /* allocate resources */ 108 rid = ATA_IOADDR_RID; 109 if (!(ctlr->io = bus_alloc_resource_anywhere(dev, SYS_RES_IOPORT, &rid, 110 ATA_PC98_IOSIZE, RF_ACTIVE))) 111 return ENOMEM; 112 113 rid = ATA_PC98_CTLADDR_RID; 114 if (!(ctlr->ctlio = 115 bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 116 rman_get_start(ctlr->io) + ATA_PC98_CTLOFFSET, ~0, 117 ATA_CTLIOSIZE, RF_ACTIVE))) { 118 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, ctlr->io); 119 return ENOMEM; 120 } 121 122 rid = ATA_PC98_BANKADDR_RID; 123 if (!(ctlr->bankio = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 124 ATA_PC98_BANK, ~0, 125 ATA_PC98_BANKIOSIZE, RF_ACTIVE))) { 126 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, ctlr->io); 127 bus_release_resource(dev, SYS_RES_IOPORT, ATA_CTLADDR_RID, ctlr->ctlio); 128 return ENOMEM; 129 } 130 131 rid = ATA_IRQ_RID; 132 if (!(ctlr->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, 133 RF_ACTIVE | RF_SHAREABLE))) { 134 device_printf(dev, "unable to alloc interrupt\n"); 135 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, ctlr->io); 136 bus_release_resource(dev, SYS_RES_IOPORT, ATA_CTLADDR_RID, ctlr->ctlio); 137 bus_release_resource(dev, SYS_RES_IOPORT, 138 ATA_PC98_BANKADDR_RID, ctlr->bankio); 139 return ENXIO; 140 } 141 142 if ((bus_setup_intr(dev, ctlr->irq, ATA_INTR_FLAGS, 143 NULL, ata_cbus_intr, ctlr, &ctlr->ih))) { 144 device_printf(dev, "unable to setup interrupt\n"); 145 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, ctlr->io); 146 bus_release_resource(dev, SYS_RES_IOPORT, ATA_CTLADDR_RID, ctlr->ctlio); 147 bus_release_resource(dev, SYS_RES_IOPORT, 148 ATA_PC98_BANKADDR_RID, ctlr->bankio); 149 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IRQ_RID, ctlr->irq); 150 return ENXIO; 151 } 152 153 /* Work around the lack of channel serialization in ATA_CAM. */ 154 ctlr->channels = 1; 155 device_printf(dev, "second channel ignored\n"); 156 157 for (unit = 0; unit < ctlr->channels; unit++) { 158 child = device_add_child(dev, "ata", unit); 159 if (child == NULL) 160 device_printf(dev, "failed to add ata child device\n"); 161 else 162 device_set_ivars(child, (void *)(intptr_t)unit); 163 } 164 165 bus_generic_attach(dev); 166 return (0); 167} 168 169static struct resource * 170ata_cbus_alloc_resource(device_t dev, device_t child, int type, int *rid, 171 rman_res_t start, rman_res_t end, rman_res_t count, 172 u_int flags) 173{ 174 struct ata_cbus_controller *ctlr = device_get_softc(dev); 175 176 if (type == SYS_RES_IOPORT) { 177 switch (*rid) { 178 case ATA_IOADDR_RID: 179 return ctlr->io; 180 case ATA_CTLADDR_RID: 181 return ctlr->ctlio; 182 } 183 } 184 if (type == SYS_RES_IRQ) 185 return ctlr->irq; 186 return 0; 187} 188 189static int 190ata_cbus_setup_intr(device_t dev, device_t child, struct resource *irq, 191 int flags, driver_filter_t *filter, driver_intr_t *intr, 192 void *arg, void **cookiep) 193{ 194 struct ata_cbus_controller *controller = device_get_softc(dev); 195 int unit = ((struct ata_channel *)device_get_softc(child))->unit; 196 197 if (filter != NULL) { 198 printf("ata-cbus.c: we cannot use a filter here\n"); 199 return (EINVAL); 200 } 201 controller->interrupt[unit].function = intr; 202 controller->interrupt[unit].argument = arg; 203 *cookiep = controller; 204 205 return 0; 206} 207 208static int 209ata_cbus_print_child(device_t dev, device_t child) 210{ 211 struct ata_channel *ch = device_get_softc(child); 212 int retval = 0; 213 214 retval += bus_print_child_header(dev, child); 215 retval += printf(" at bank %d", ch->unit); 216 retval += bus_print_child_footer(dev, child); 217 return retval; 218} 219 220static void 221ata_cbus_intr(void *data) 222{ 223 struct ata_cbus_controller *ctlr = data; 224 struct ata_channel *ch; 225 int unit; 226 227 for (unit = 0; unit < ctlr->channels; unit++) { 228 if (!(ch = ctlr->interrupt[unit].argument)) 229 continue; 230 ctlr->interrupt[unit].function(ch); 231 } 232} 233 234static device_method_t ata_cbus_methods[] = { 235 /* device interface */ 236 DEVMETHOD(device_probe, ata_cbus_probe), 237 DEVMETHOD(device_attach, ata_cbus_attach), 238// DEVMETHOD(device_detach, ata_cbus_detach), 239 240 /* bus methods */ 241 DEVMETHOD(bus_alloc_resource, ata_cbus_alloc_resource), 242 DEVMETHOD(bus_setup_intr, ata_cbus_setup_intr), 243 DEVMETHOD(bus_print_child, ata_cbus_print_child), 244 245 DEVMETHOD_END 246}; 247 248static driver_t ata_cbus_driver = { 249 "atacbus", 250 ata_cbus_methods, 251 sizeof(struct ata_cbus_controller), 252}; 253 254static devclass_t ata_cbus_devclass; 255 256DRIVER_MODULE(atacbus, isa, ata_cbus_driver, ata_cbus_devclass, NULL, NULL); 257 258static int 259ata_cbuschannel_probe(device_t dev) 260{ 261 char buffer[32]; 262 263 sprintf(buffer, "ATA channel %d", (int)(intptr_t)device_get_ivars(dev)); 264 device_set_desc_copy(dev, buffer); 265 266 return ata_probe(dev); 267} 268 269static int 270ata_cbuschannel_attach(device_t dev) 271{ 272 struct ata_cbus_controller *ctlr = device_get_softc(device_get_parent(dev)); 273 struct ata_channel *ch = device_get_softc(dev); 274 int i; 275 276 if (ch->attached) 277 return (0); 278 ch->attached = 1; 279 280 ch->unit = (intptr_t)device_get_ivars(dev); 281 /* setup the resource vectors */ 282 for (i = ATA_DATA; i <= ATA_COMMAND; i ++) { 283 ch->r_io[i].res = ctlr->io; 284 ch->r_io[i].offset = i << 1; 285 } 286 ch->r_io[ATA_CONTROL].res = ctlr->ctlio; 287 ch->r_io[ATA_CONTROL].offset = 0; 288 ch->r_io[ATA_IDX_ADDR].res = ctlr->io; 289 ata_default_registers(dev); 290 291 /* initialize softc for this channel */ 292 ch->flags |= ATA_USE_16BIT; 293 ata_generic_hw(dev); 294 295 return ata_attach(dev); 296} 297 298static int 299ata_cbuschannel_detach(device_t dev) 300{ 301 struct ata_channel *ch = device_get_softc(dev); 302 303 if (!ch->attached) 304 return (0); 305 ch->attached = 0; 306 307 return ata_detach(dev); 308} 309 310static int 311ata_cbuschannel_suspend(device_t dev) 312{ 313 struct ata_channel *ch = device_get_softc(dev); 314 315 if (!ch->attached) 316 return (0); 317 318 return ata_suspend(dev); 319} 320 321static int 322ata_cbuschannel_resume(device_t dev) 323{ 324 struct ata_channel *ch = device_get_softc(dev); 325 326 if (!ch->attached) 327 return (0); 328 329 return ata_resume(dev); 330} 331 332static device_method_t ata_cbuschannel_methods[] = { 333 /* device interface */ 334 DEVMETHOD(device_probe, ata_cbuschannel_probe), 335 DEVMETHOD(device_attach, ata_cbuschannel_attach), 336 DEVMETHOD(device_detach, ata_cbuschannel_detach), 337 DEVMETHOD(device_suspend, ata_cbuschannel_suspend), 338 DEVMETHOD(device_resume, ata_cbuschannel_resume), 339 DEVMETHOD_END 340}; 341 342static driver_t ata_cbuschannel_driver = { 343 "ata", 344 ata_cbuschannel_methods, 345 sizeof(struct ata_channel), 346}; 347 348DRIVER_MODULE(ata, atacbus, ata_cbuschannel_driver, ata_devclass, NULL, NULL); 349MODULE_DEPEND(ata, ata, 1, 1, 1); 350