1 /*- 2 * Copyright (c) 1998 - 2008 Søren 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("$FreeBSD$"); 29 30 #include <sys/param.h> 31 #include <sys/module.h> 32 #include <sys/systm.h> 33 #include <sys/kernel.h> 34 #include <sys/ata.h> 35 #include <sys/bus.h> 36 #include <sys/endian.h> 37 #include <sys/malloc.h> 38 #include <sys/lock.h> 39 #include <sys/mutex.h> 40 #include <sys/sema.h> 41 #include <sys/taskqueue.h> 42 #include <vm/uma.h> 43 #include <machine/stdarg.h> 44 #include <machine/resource.h> 45 #include <machine/bus.h> 46 #include <sys/rman.h> 47 #include <dev/pci/pcivar.h> 48 #include <dev/pci/pcireg.h> 49 #include <dev/ata/ata-all.h> 50 #include <dev/ata/ata-pci.h> 51 #include <ata_if.h> 52 53 /* local prototypes */ 54 static int ata_ali_chipinit(device_t dev); 55 static int ata_ali_chipdeinit(device_t dev); 56 static int ata_ali_ch_attach(device_t dev); 57 static int ata_ali_sata_ch_attach(device_t dev); 58 static void ata_ali_reset(device_t dev); 59 static int ata_ali_setmode(device_t dev, int target, int mode); 60 61 /* misc defines */ 62 #define ALI_OLD 0x01 63 #define ALI_NEW 0x02 64 #define ALI_SATA 0x04 65 66 struct ali_sata_resources { 67 struct resource *bars[4]; 68 }; 69 70 /* 71 * Acer Labs Inc (ALI) chipset support functions 72 */ 73 static int 74 ata_ali_probe(device_t dev) 75 { 76 struct ata_pci_controller *ctlr = device_get_softc(dev); 77 static const struct ata_chip_id ids[] = 78 {{ ATA_ALI_5289, 0x00, 2, ALI_SATA, ATA_SA150, "M5289" }, 79 { ATA_ALI_5288, 0x00, 4, ALI_SATA, ATA_SA300, "M5288" }, 80 { ATA_ALI_5287, 0x00, 4, ALI_SATA, ATA_SA150, "M5287" }, 81 { ATA_ALI_5281, 0x00, 2, ALI_SATA, ATA_SA150, "M5281" }, 82 { ATA_ALI_5228, 0xc5, 0, ALI_NEW, ATA_UDMA6, "M5228" }, 83 { ATA_ALI_5229, 0xc5, 0, ALI_NEW, ATA_UDMA6, "M5229" }, 84 { ATA_ALI_5229, 0xc4, 0, ALI_NEW, ATA_UDMA5, "M5229" }, 85 { ATA_ALI_5229, 0xc2, 0, ALI_NEW, ATA_UDMA4, "M5229" }, 86 { ATA_ALI_5229, 0x20, 0, ALI_OLD, ATA_UDMA2, "M5229" }, 87 { ATA_ALI_5229, 0x00, 0, ALI_OLD, ATA_WDMA2, "M5229" }, 88 { 0, 0, 0, 0, 0, 0}}; 89 90 if (pci_get_vendor(dev) != ATA_ACER_LABS_ID) 91 return ENXIO; 92 93 if (!(ctlr->chip = ata_match_chip(dev, ids))) 94 return ENXIO; 95 96 ata_set_desc(dev); 97 ctlr->chipinit = ata_ali_chipinit; 98 ctlr->chipdeinit = ata_ali_chipdeinit; 99 return (BUS_PROBE_LOW_PRIORITY); 100 } 101 102 static int 103 ata_ali_chipinit(device_t dev) 104 { 105 struct ata_pci_controller *ctlr = device_get_softc(dev); 106 struct ali_sata_resources *res; 107 int i, rid; 108 109 if (ata_setup_interrupt(dev, ata_generic_intr)) 110 return ENXIO; 111 112 switch (ctlr->chip->cfg2) { 113 case ALI_SATA: 114 ctlr->channels = ctlr->chip->cfg1; 115 ctlr->ch_attach = ata_ali_sata_ch_attach; 116 ctlr->ch_detach = ata_pci_ch_detach; 117 ctlr->setmode = ata_sata_setmode; 118 ctlr->getrev = ata_sata_getrev; 119 120 /* Allocate resources for later use by channel attach routines. */ 121 res = malloc(sizeof(struct ali_sata_resources), M_ATAPCI, M_WAITOK); 122 for (i = 0; i < 4; i++) { 123 rid = PCIR_BAR(i); 124 res->bars[i] = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, 125 RF_ACTIVE); 126 if (res->bars[i] == NULL) { 127 device_printf(dev, "Failed to allocate BAR %d\n", i); 128 for (i--; i >=0; i--) 129 bus_release_resource(dev, SYS_RES_IOPORT, 130 PCIR_BAR(i), res->bars[i]); 131 free(res, M_ATAPCI); 132 return ENXIO; 133 } 134 } 135 ctlr->chipset_data = res; 136 break; 137 138 case ALI_NEW: 139 /* use device interrupt as byte count end */ 140 pci_write_config(dev, 0x4a, pci_read_config(dev, 0x4a, 1) | 0x20, 1); 141 142 /* enable cable detection and UDMA support on revisions < 0xc7 */ 143 if (ctlr->chip->chiprev < 0xc7) 144 pci_write_config(dev, 0x4b, pci_read_config(dev, 0x4b, 1) | 145 0x09, 1); 146 147 /* enable ATAPI UDMA mode (even if we are going to do PIO) */ 148 pci_write_config(dev, 0x53, pci_read_config(dev, 0x53, 1) | 149 (ctlr->chip->chiprev >= 0xc7 ? 0x03 : 0x01), 1); 150 151 /* only chips with revision > 0xc4 can do 48bit DMA */ 152 if (ctlr->chip->chiprev <= 0xc4) 153 device_printf(dev, 154 "using PIO transfers above 137GB as workaround for " 155 "48bit DMA access bug, expect reduced performance\n"); 156 ctlr->ch_attach = ata_ali_ch_attach; 157 ctlr->ch_detach = ata_pci_ch_detach; 158 ctlr->reset = ata_ali_reset; 159 ctlr->setmode = ata_ali_setmode; 160 break; 161 162 case ALI_OLD: 163 /* deactivate the ATAPI FIFO and enable ATAPI UDMA */ 164 pci_write_config(dev, 0x53, pci_read_config(dev, 0x53, 1) | 0x03, 1); 165 ctlr->setmode = ata_ali_setmode; 166 break; 167 } 168 return 0; 169 } 170 171 static int 172 ata_ali_chipdeinit(device_t dev) 173 { 174 struct ata_pci_controller *ctlr = device_get_softc(dev); 175 struct ali_sata_resources *res; 176 int i; 177 178 if (ctlr->chip->cfg2 == ALI_SATA) { 179 res = ctlr->chipset_data; 180 for (i = 0; i < 4; i++) { 181 if (res->bars[i] != NULL) { 182 bus_release_resource(dev, SYS_RES_IOPORT, 183 PCIR_BAR(i), res->bars[i]); 184 } 185 } 186 free(res, M_ATAPCI); 187 ctlr->chipset_data = NULL; 188 } 189 return (0); 190 } 191 192 static int 193 ata_ali_ch_attach(device_t dev) 194 { 195 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 196 struct ata_channel *ch = device_get_softc(dev); 197 198 /* setup the usual register normal pci style */ 199 if (ata_pci_ch_attach(dev)) 200 return ENXIO; 201 202 if (ctlr->chip->cfg2 & ALI_NEW && ctlr->chip->chiprev < 0xc7) 203 ch->flags |= ATA_CHECKS_CABLE; 204 /* older chips can't do 48bit DMA transfers */ 205 if (ctlr->chip->chiprev <= 0xc4) { 206 ch->flags |= ATA_NO_48BIT_DMA; 207 if (ch->dma.max_iosize > 256 * 512) 208 ch->dma.max_iosize = 256 * 512; 209 } 210 if (ctlr->chip->cfg2 & ALI_NEW) 211 ch->flags |= ATA_NO_ATAPI_DMA; 212 213 return 0; 214 } 215 216 static int 217 ata_ali_sata_ch_attach(device_t dev) 218 { 219 device_t parent = device_get_parent(dev); 220 struct ata_pci_controller *ctlr = device_get_softc(parent); 221 struct ata_channel *ch = device_get_softc(dev); 222 struct ali_sata_resources *res; 223 struct resource *io = NULL, *ctlio = NULL; 224 int unit01 = (ch->unit & 1), unit10 = (ch->unit & 2); 225 int i; 226 227 res = ctlr->chipset_data; 228 if (unit01) { 229 io = res->bars[2]; 230 ctlio = res->bars[3]; 231 } else { 232 io = res->bars[0]; 233 ctlio = res->bars[1]; 234 } 235 ata_pci_dmainit(dev); 236 for (i = ATA_DATA; i <= ATA_COMMAND; i ++) { 237 ch->r_io[i].res = io; 238 ch->r_io[i].offset = i + (unit10 ? 8 : 0); 239 } 240 ch->r_io[ATA_CONTROL].res = ctlio; 241 ch->r_io[ATA_CONTROL].offset = 2 + (unit10 ? 4 : 0); 242 ch->r_io[ATA_IDX_ADDR].res = io; 243 ata_default_registers(dev); 244 if (ctlr->r_res1) { 245 for (i = ATA_BMCMD_PORT; i <= ATA_BMDTP_PORT; i++) { 246 ch->r_io[i].res = ctlr->r_res1; 247 ch->r_io[i].offset = (i - ATA_BMCMD_PORT)+(ch->unit * ATA_BMIOSIZE); 248 } 249 } 250 ch->flags |= ATA_NO_SLAVE; 251 ch->flags |= ATA_SATA; 252 253 /* XXX SOS PHY handling awkward in ALI chip not supported yet */ 254 ata_pci_hw(dev); 255 return 0; 256 } 257 258 static void 259 ata_ali_reset(device_t dev) 260 { 261 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 262 struct ata_channel *ch = device_get_softc(dev); 263 device_t *children; 264 int nchildren, i; 265 266 ata_generic_reset(dev); 267 268 /* 269 * workaround for datacorruption bug found on at least SUN Blade-100 270 * find the ISA function on the southbridge and disable then enable 271 * the ATA channel tristate buffer 272 */ 273 if (ctlr->chip->chiprev == 0xc3 || ctlr->chip->chiprev == 0xc2) { 274 if (!device_get_children(GRANDPARENT(dev), &children, &nchildren)) { 275 for (i = 0; i < nchildren; i++) { 276 if (pci_get_devid(children[i]) == ATA_ALI_1533) { 277 pci_write_config(children[i], 0x58, 278 pci_read_config(children[i], 0x58, 1) & 279 ~(0x04 << ch->unit), 1); 280 pci_write_config(children[i], 0x58, 281 pci_read_config(children[i], 0x58, 1) | 282 (0x04 << ch->unit), 1); 283 break; 284 } 285 } 286 free(children, M_TEMP); 287 } 288 } 289 } 290 291 static int 292 ata_ali_setmode(device_t dev, int target, int mode) 293 { 294 device_t parent = device_get_parent(dev); 295 struct ata_pci_controller *ctlr = device_get_softc(parent); 296 struct ata_channel *ch = device_get_softc(dev); 297 int devno = (ch->unit << 1) + target; 298 int piomode; 299 static const uint32_t piotimings[] = 300 { 0x006d0003, 0x00580002, 0x00440001, 0x00330001, 301 0x00310001, 0x006d0003, 0x00330001, 0x00310001 }; 302 static const uint8_t udma[] = {0x0c, 0x0b, 0x0a, 0x09, 0x08, 0x0f, 303 0x0d}; 304 uint32_t word54; 305 306 mode = min(mode, ctlr->chip->max_dma); 307 308 if (ctlr->chip->cfg2 & ALI_NEW && ctlr->chip->chiprev < 0xc7) { 309 if (ata_dma_check_80pin && mode > ATA_UDMA2 && 310 pci_read_config(parent, 0x4a, 1) & (1 << ch->unit)) { 311 ata_print_cable(dev, "controller"); 312 mode = ATA_UDMA2; 313 } 314 } 315 if (ctlr->chip->cfg2 & ALI_OLD) { 316 /* doesn't support ATAPI DMA on write */ 317 ch->flags |= ATA_ATAPI_DMA_RO; 318 if (ch->devices & ATA_ATAPI_MASTER && 319 ch->devices & ATA_ATAPI_SLAVE) { 320 /* doesn't support ATAPI DMA on two ATAPI devices */ 321 device_printf(dev, "two atapi devices on this channel," 322 " no DMA\n"); 323 mode = min(mode, ATA_PIO_MAX); 324 } 325 } 326 /* Set UDMA mode */ 327 word54 = pci_read_config(parent, 0x54, 4); 328 if (mode >= ATA_UDMA0) { 329 word54 &= ~(0x000f000f << (devno << 2)); 330 word54 |= (((udma[mode&ATA_MODE_MASK]<<16)|0x05)<<(devno<<2)); 331 piomode = ATA_PIO4; 332 } 333 else { 334 word54 &= ~(0x0008000f << (devno << 2)); 335 piomode = mode; 336 } 337 pci_write_config(parent, 0x54, word54, 4); 338 /* Set PIO/WDMA mode */ 339 pci_write_config(parent, 0x58 + (ch->unit << 2), 340 piotimings[ata_mode2idx(piomode)], 4); 341 return (mode); 342 } 343 344 ATA_DECLARE_DRIVER(ata_ali); 345