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_DEFAULT); 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 /* AHCI mode is correctly supported only on the ALi 5288. */ 121 if ((ctlr->chip->chipid == ATA_ALI_5288) && 122 (ata_ahci_chipinit(dev) != ENXIO)) 123 return 0; 124 125 /* Allocate resources for later use by channel attach routines. */ 126 res = malloc(sizeof(struct ali_sata_resources), M_ATAPCI, M_WAITOK); 127 for (i = 0; i < 4; i++) { 128 rid = PCIR_BAR(i); 129 res->bars[i] = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, 130 RF_ACTIVE); 131 if (res->bars[i] == NULL) { 132 device_printf(dev, "Failed to allocate BAR %d\n", i); 133 for (i--; i >=0; i--) 134 bus_release_resource(dev, SYS_RES_IOPORT, 135 PCIR_BAR(i), res->bars[i]); 136 free(res, M_TEMP); 137 return ENXIO; 138 } 139 } 140 ctlr->chipset_data = res; 141 break; 142 143 case ALI_NEW: 144 /* use device interrupt as byte count end */ 145 pci_write_config(dev, 0x4a, pci_read_config(dev, 0x4a, 1) | 0x20, 1); 146 147 /* enable cable detection and UDMA support on revisions < 0xc7 */ 148 if (ctlr->chip->chiprev < 0xc7) 149 pci_write_config(dev, 0x4b, pci_read_config(dev, 0x4b, 1) | 150 0x09, 1); 151 152 /* enable ATAPI UDMA mode (even if we are going to do PIO) */ 153 pci_write_config(dev, 0x53, pci_read_config(dev, 0x53, 1) | 154 (ctlr->chip->chiprev >= 0xc7 ? 0x03 : 0x01), 1); 155 156 /* only chips with revision > 0xc4 can do 48bit DMA */ 157 if (ctlr->chip->chiprev <= 0xc4) 158 device_printf(dev, 159 "using PIO transfers above 137GB as workaround for " 160 "48bit DMA access bug, expect reduced performance\n"); 161 ctlr->ch_attach = ata_ali_ch_attach; 162 ctlr->ch_detach = ata_pci_ch_detach; 163 ctlr->reset = ata_ali_reset; 164 ctlr->setmode = ata_ali_setmode; 165 break; 166 167 case ALI_OLD: 168 /* deactivate the ATAPI FIFO and enable ATAPI UDMA */ 169 pci_write_config(dev, 0x53, pci_read_config(dev, 0x53, 1) | 0x03, 1); 170 ctlr->setmode = ata_ali_setmode; 171 break; 172 } 173 return 0; 174 } 175 176 static int 177 ata_ali_chipdeinit(device_t dev) 178 { 179 struct ata_pci_controller *ctlr = device_get_softc(dev); 180 struct ali_sata_resources *res; 181 int i; 182 183 if (ctlr->chip->cfg2 == ALI_SATA) { 184 res = ctlr->chipset_data; 185 for (i = 0; i < 4; i++) { 186 if (res->bars[i] != NULL) { 187 bus_release_resource(dev, SYS_RES_IOPORT, 188 PCIR_BAR(i), res->bars[i]); 189 } 190 } 191 free(res, M_ATAPCI); 192 ctlr->chipset_data = NULL; 193 } 194 return (0); 195 } 196 197 static int 198 ata_ali_ch_attach(device_t dev) 199 { 200 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 201 struct ata_channel *ch = device_get_softc(dev); 202 203 /* setup the usual register normal pci style */ 204 if (ata_pci_ch_attach(dev)) 205 return ENXIO; 206 207 if (ctlr->chip->cfg2 & ALI_NEW && ctlr->chip->chiprev < 0xc7) 208 ch->flags |= ATA_CHECKS_CABLE; 209 /* older chips can't do 48bit DMA transfers */ 210 if (ctlr->chip->chiprev <= 0xc4) { 211 ch->flags |= ATA_NO_48BIT_DMA; 212 if (ch->dma.max_iosize > 256 * 512) 213 ch->dma.max_iosize = 256 * 512; 214 } 215 if (ctlr->chip->cfg2 & ALI_NEW) 216 ch->flags |= ATA_NO_ATAPI_DMA; 217 218 return 0; 219 } 220 221 static int 222 ata_ali_sata_ch_attach(device_t dev) 223 { 224 device_t parent = device_get_parent(dev); 225 struct ata_pci_controller *ctlr = device_get_softc(parent); 226 struct ata_channel *ch = device_get_softc(dev); 227 struct ali_sata_resources *res; 228 struct resource *io = NULL, *ctlio = NULL; 229 int unit01 = (ch->unit & 1), unit10 = (ch->unit & 2); 230 int i; 231 232 res = ctlr->chipset_data; 233 if (unit01) { 234 io = res->bars[2]; 235 ctlio = res->bars[3]; 236 } else { 237 io = res->bars[0]; 238 ctlio = res->bars[1]; 239 } 240 ata_pci_dmainit(dev); 241 for (i = ATA_DATA; i <= ATA_COMMAND; i ++) { 242 ch->r_io[i].res = io; 243 ch->r_io[i].offset = i + (unit10 ? 8 : 0); 244 } 245 ch->r_io[ATA_CONTROL].res = ctlio; 246 ch->r_io[ATA_CONTROL].offset = 2 + (unit10 ? 4 : 0); 247 ch->r_io[ATA_IDX_ADDR].res = io; 248 ata_default_registers(dev); 249 if (ctlr->r_res1) { 250 for (i = ATA_BMCMD_PORT; i <= ATA_BMDTP_PORT; i++) { 251 ch->r_io[i].res = ctlr->r_res1; 252 ch->r_io[i].offset = (i - ATA_BMCMD_PORT)+(ch->unit * ATA_BMIOSIZE); 253 } 254 } 255 ch->flags |= ATA_NO_SLAVE; 256 ch->flags |= ATA_SATA; 257 258 /* XXX SOS PHY handling awkward in ALI chip not supported yet */ 259 ata_pci_hw(dev); 260 return 0; 261 } 262 263 static void 264 ata_ali_reset(device_t dev) 265 { 266 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 267 struct ata_channel *ch = device_get_softc(dev); 268 device_t *children; 269 int nchildren, i; 270 271 ata_generic_reset(dev); 272 273 /* 274 * workaround for datacorruption bug found on at least SUN Blade-100 275 * find the ISA function on the southbridge and disable then enable 276 * the ATA channel tristate buffer 277 */ 278 if (ctlr->chip->chiprev == 0xc3 || ctlr->chip->chiprev == 0xc2) { 279 if (!device_get_children(GRANDPARENT(dev), &children, &nchildren)) { 280 for (i = 0; i < nchildren; i++) { 281 if (pci_get_devid(children[i]) == ATA_ALI_1533) { 282 pci_write_config(children[i], 0x58, 283 pci_read_config(children[i], 0x58, 1) & 284 ~(0x04 << ch->unit), 1); 285 pci_write_config(children[i], 0x58, 286 pci_read_config(children[i], 0x58, 1) | 287 (0x04 << ch->unit), 1); 288 break; 289 } 290 } 291 free(children, M_TEMP); 292 } 293 } 294 } 295 296 static int 297 ata_ali_setmode(device_t dev, int target, int mode) 298 { 299 device_t parent = device_get_parent(dev); 300 struct ata_pci_controller *ctlr = device_get_softc(parent); 301 struct ata_channel *ch = device_get_softc(dev); 302 int devno = (ch->unit << 1) + target; 303 int piomode; 304 static const uint32_t piotimings[] = 305 { 0x006d0003, 0x00580002, 0x00440001, 0x00330001, 306 0x00310001, 0x006d0003, 0x00330001, 0x00310001 }; 307 static const uint8_t udma[] = {0x0c, 0x0b, 0x0a, 0x09, 0x08, 0x0f, 308 0x0d}; 309 uint32_t word54; 310 311 mode = min(mode, ctlr->chip->max_dma); 312 313 if (ctlr->chip->cfg2 & ALI_NEW && ctlr->chip->chiprev < 0xc7) { 314 if (ata_dma_check_80pin && mode > ATA_UDMA2 && 315 pci_read_config(parent, 0x4a, 1) & (1 << ch->unit)) { 316 ata_print_cable(dev, "controller"); 317 mode = ATA_UDMA2; 318 } 319 } 320 if (ctlr->chip->cfg2 & ALI_OLD) { 321 /* doesn't support ATAPI DMA on write */ 322 ch->flags |= ATA_ATAPI_DMA_RO; 323 if (ch->devices & ATA_ATAPI_MASTER && 324 ch->devices & ATA_ATAPI_SLAVE) { 325 /* doesn't support ATAPI DMA on two ATAPI devices */ 326 device_printf(dev, "two atapi devices on this channel," 327 " no DMA\n"); 328 mode = min(mode, ATA_PIO_MAX); 329 } 330 } 331 /* Set UDMA mode */ 332 word54 = pci_read_config(parent, 0x54, 4); 333 if (mode >= ATA_UDMA0) { 334 word54 &= ~(0x000f000f << (devno << 2)); 335 word54 |= (((udma[mode&ATA_MODE_MASK]<<16)|0x05)<<(devno<<2)); 336 piomode = ATA_PIO4; 337 } 338 else { 339 word54 &= ~(0x0008000f << (devno << 2)); 340 piomode = mode; 341 } 342 pci_write_config(parent, 0x54, word54, 4); 343 /* Set PIO/WDMA mode */ 344 pci_write_config(parent, 0x58 + (ch->unit << 2), 345 piotimings[ata_mode2idx(piomode)], 4); 346 return (mode); 347 } 348 349 ATA_DECLARE_DRIVER(ata_ali); 350 MODULE_DEPEND(ata_ali, ata_ahci, 1, 1, 1); 351