1 /*- 2 * Copyright (c) 1998 - 2005 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 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * $FreeBSD$ 29 */ 30 31 /* ATA register defines */ 32 #define ATA_DATA 0 /* (RW) data */ 33 34 #define ATA_FEATURE 1 /* (W) feature */ 35 #define ATA_F_DMA 0x01 /* enable DMA */ 36 #define ATA_F_OVL 0x02 /* enable overlap */ 37 38 #define ATA_COUNT 2 /* (W) sector count */ 39 40 #define ATA_SECTOR 3 /* (RW) sector # */ 41 #define ATA_CYL_LSB 4 /* (RW) cylinder# LSB */ 42 #define ATA_CYL_MSB 5 /* (RW) cylinder# MSB */ 43 #define ATA_DRIVE 6 /* (W) Sector/Drive/Head */ 44 #define ATA_D_LBA 0x40 /* use LBA addressing */ 45 #define ATA_D_IBM 0xa0 /* 512 byte sectors, ECC */ 46 47 #define ATA_COMMAND 7 /* (W) command */ 48 49 #define ATA_ERROR 8 /* (R) error */ 50 #define ATA_E_ILI 0x01 /* illegal length */ 51 #define ATA_E_NM 0x02 /* no media */ 52 #define ATA_E_ABORT 0x04 /* command aborted */ 53 #define ATA_E_MCR 0x08 /* media change request */ 54 #define ATA_E_IDNF 0x10 /* ID not found */ 55 #define ATA_E_MC 0x20 /* media changed */ 56 #define ATA_E_UNC 0x40 /* uncorrectable data */ 57 #define ATA_E_ICRC 0x80 /* UDMA crc error */ 58 #define ATA_E_MASK 0x0f /* error mask */ 59 #define ATA_SK_MASK 0xf0 /* sense key mask */ 60 #define ATA_SK_NO_SENSE 0x00 /* no specific sense key info */ 61 #define ATA_SK_RECOVERED_ERROR 0x10 /* command OK, data recovered */ 62 #define ATA_SK_NOT_READY 0x20 /* no access to drive */ 63 #define ATA_SK_MEDIUM_ERROR 0x30 /* non-recovered data error */ 64 #define ATA_SK_HARDWARE_ERROR 0x40 /* non-recoverable HW failure */ 65 #define ATA_SK_ILLEGAL_REQUEST 0x50 /* invalid command param(s) */ 66 #define ATA_SK_UNIT_ATTENTION 0x60 /* media changed */ 67 #define ATA_SK_DATA_PROTECT 0x70 /* write protect */ 68 #define ATA_SK_BLANK_CHECK 0x80 /* blank check */ 69 #define ATA_SK_VENDOR_SPECIFIC 0x90 /* vendor specific skey */ 70 #define ATA_SK_COPY_ABORTED 0xa0 /* copy aborted */ 71 #define ATA_SK_ABORTED_COMMAND 0xb0 /* command aborted, try again */ 72 #define ATA_SK_EQUAL 0xc0 /* equal */ 73 #define ATA_SK_VOLUME_OVERFLOW 0xd0 /* volume overflow */ 74 #define ATA_SK_MISCOMPARE 0xe0 /* data dont match the medium */ 75 #define ATA_SK_RESERVED 0xf0 76 77 #define ATA_IREASON 9 /* (R) interrupt reason */ 78 #define ATA_I_CMD 0x01 /* cmd (1) | data (0) */ 79 #define ATA_I_IN 0x02 /* read (1) | write (0) */ 80 #define ATA_I_RELEASE 0x04 /* released bus (1) */ 81 #define ATA_I_TAGMASK 0xf8 /* tag mask */ 82 83 #define ATA_STATUS 10 /* (R) status */ 84 #define ATA_ALTSTAT 11 /* (R) alternate status */ 85 #define ATA_S_ERROR 0x01 /* error */ 86 #define ATA_S_INDEX 0x02 /* index */ 87 #define ATA_S_CORR 0x04 /* data corrected */ 88 #define ATA_S_DRQ 0x08 /* data request */ 89 #define ATA_S_DSC 0x10 /* drive seek completed */ 90 #define ATA_S_SERVICE 0x10 /* drive needs service */ 91 #define ATA_S_DWF 0x20 /* drive write fault */ 92 #define ATA_S_DMA 0x20 /* DMA ready */ 93 #define ATA_S_READY 0x40 /* drive ready */ 94 #define ATA_S_BUSY 0x80 /* busy */ 95 96 #define ATA_CONTROL 12 /* (W) control */ 97 98 #define ATA_CTLOFFSET 0x206 /* control register offset */ 99 #define ATA_PCCARD_CTLOFFSET 0x0e /* do for PCCARD devices */ 100 #define ATA_PC98_CTLOFFSET 0x10c /* do for PC98 devices */ 101 #define ATA_A_IDS 0x02 /* disable interrupts */ 102 #define ATA_A_RESET 0x04 /* RESET controller */ 103 #define ATA_A_4BIT 0x08 /* 4 head bits */ 104 #define ATA_A_HOB 0x80 /* High Order Byte enable */ 105 106 /* SATA register defines */ 107 #define ATA_SSTATUS 13 108 #define ATA_SS_DET_MASK 0x0000000f 109 #define ATA_SS_DET_NO_DEVICE 0x00000000 110 #define ATA_SS_DET_DEV_PRESENT 0x00000001 111 #define ATA_SS_DET_PHY_ONLINE 0x00000003 112 #define ATA_SS_DET_PHY_OFFLINE 0x00000004 113 114 #define ATA_SS_SPD_MASK 0x000000f0 115 #define ATA_SS_SPD_NO_SPEED 0x00000000 116 #define ATA_SS_SPD_GEN1 0x00000010 117 #define ATA_SS_SPD_GEN2 0x00000020 118 119 #define ATA_SS_IPM_MASK 0x00000f00 120 #define ATA_SS_IPM_NO_DEVICE 0x00000000 121 #define ATA_SS_IPM_ACTIVE 0x00000100 122 #define ATA_SS_IPM_PARTIAL 0x00000200 123 #define ATA_SS_IPM_SLUMBER 0x00000600 124 125 #define ATA_SS_CONWELL_MASK \ 126 (ATA_SS_DET_MASK|ATA_SS_SPD_MASK|ATA_SS_IPM_MASK) 127 #define ATA_SS_CONWELL_GEN1 \ 128 (ATA_SS_DET_PHY_ONLINE|ATA_SS_SPD_GEN1|ATA_SS_IPM_ACTIVE) 129 #define ATA_SS_CONWELL_GEN2 \ 130 (ATA_SS_DET_PHY_ONLINE|ATA_SS_SPD_GEN2|ATA_SS_IPM_ACTIVE) 131 132 #define ATA_SERROR 14 133 #define ATA_SE_DATA_CORRECTED 0x00000001 134 #define ATA_SE_COMM_CORRECTED 0x00000002 135 #define ATA_SE_DATA_ERR 0x00000100 136 #define ATA_SE_COMM_ERR 0x00000200 137 #define ATA_SE_PROT_ERR 0x00000400 138 #define ATA_SE_HOST_ERR 0x00000800 139 #define ATA_SE_PHY_CHANGED 0x00010000 140 #define ATA_SE_PHY_IERROR 0x00020000 141 #define ATA_SE_COMM_WAKE 0x00040000 142 #define ATA_SE_DECODE_ERR 0x00080000 143 #define ATA_SE_PARITY_ERR 0x00100000 144 #define ATA_SE_CRC_ERR 0x00200000 145 #define ATA_SE_HANDSHAKE_ERR 0x00400000 146 #define ATA_SE_LINKSEQ_ERR 0x00800000 147 #define ATA_SE_TRANSPORT_ERR 0x01000000 148 #define ATA_SE_UNKNOWN_FIS 0x02000000 149 150 #define ATA_SCONTROL 15 151 #define ATA_SC_DET_MASK 0x0000000f 152 #define ATA_SC_DET_IDLE 0x00000000 153 #define ATA_SC_DET_RESET 0x00000001 154 #define ATA_SC_DET_DISABLE 0x00000004 155 156 #define ATA_SC_SPD_MASK 0x000000f0 157 #define ATA_SC_SPD_NO_SPEED 0x00000000 158 #define ATA_SC_SPD_SPEED_GEN1 0x00000010 159 #define ATA_SC_SPD_SPEED_GEN2 0x00000020 160 161 #define ATA_SC_IPM_MASK 0x00000f00 162 #define ATA_SC_IPM_NONE 0x00000000 163 #define ATA_SC_IPM_DIS_PARTIAL 0x00000100 164 #define ATA_SC_IPM_DIS_SLUMBER 0x00000200 165 166 #define ATA_SACTIVE 16 167 168 /* SATA AHCI v1.0 register defines */ 169 #define ATA_AHCI_CAP 0x00 170 #define ATA_AHCI_NPMASK 0x1f 171 172 #define ATA_AHCI_GHC 0x04 173 #define ATA_AHCI_GHC_AE 0x80000000 174 #define ATA_AHCI_GHC_IE 0x00000002 175 #define ATA_AHCI_GHC_HR 0x80000001 176 177 #define ATA_AHCI_IS 0x08 178 #define ATA_AHCI_PI 0x0c 179 #define ATA_AHCI_VS 0x10 180 181 #define ATA_AHCI_OFFSET 0x80 182 183 #define ATA_AHCI_P_CLB 0x100 184 #define ATA_AHCI_P_CLBU 0x104 185 #define ATA_AHCI_P_FB 0x108 186 #define ATA_AHCI_P_FBU 0x10c 187 #define ATA_AHCI_P_IS 0x110 188 #define ATA_AHCI_P_IE 0x114 189 #define ATA_AHCI_P_IX_DHR 0x00000001 190 #define ATA_AHCI_P_IX_PS 0x00000002 191 #define ATA_AHCI_P_IX_DS 0x00000004 192 #define ATA_AHCI_P_IX_SDB 0x00000008 193 #define ATA_AHCI_P_IX_UF 0x00000010 194 #define ATA_AHCI_P_IX_DP 0x00000020 195 #define ATA_AHCI_P_IX_PC 0x00000040 196 #define ATA_AHCI_P_IX_DI 0x00000080 197 198 #define ATA_AHCI_P_IX_PRC 0x00400000 199 #define ATA_AHCI_P_IX_IPM 0x00800000 200 #define ATA_AHCI_P_IX_OF 0x01000000 201 #define ATA_AHCI_P_IX_INF 0x04000000 202 #define ATA_AHCI_P_IX_IF 0x08000000 203 #define ATA_AHCI_P_IX_HBD 0x10000000 204 #define ATA_AHCI_P_IX_HBF 0x20000000 205 #define ATA_AHCI_P_IX_TFE 0x40000000 206 #define ATA_AHCI_P_IX_CPD 0x80000000 207 208 #define ATA_AHCI_P_CMD 0x118 209 #define ATA_AHCI_P_CMD_ST 0x00000001 210 #define ATA_AHCI_P_CMD_SUD 0x00000002 211 #define ATA_AHCI_P_CMD_POD 0x00000004 212 #define ATA_AHCI_P_CMD_CLO 0x00000008 213 #define ATA_AHCI_P_CMD_FRE 0x00000010 214 #define ATA_AHCI_P_CMD_CCS_MASK 0x00001f00 215 #define ATA_AHCI_P_CMD_ISS 0x00002000 216 #define ATA_AHCI_P_CMD_FR 0x00004000 217 #define ATA_AHCI_P_CMD_CR 0x00008000 218 #define ATA_AHCI_P_CMD_CPS 0x00010000 219 #define ATA_AHCI_P_CMD_PMA 0x00020000 220 #define ATA_AHCI_P_CMD_HPCP 0x00040000 221 #define ATA_AHCI_P_CMD_ISP 0x00080000 222 #define ATA_AHCI_P_CMD_CPD 0x00100000 223 #define ATA_AHCI_P_CMD_ATAPI 0x01000000 224 #define ATA_AHCI_P_CMD_DLAE 0x02000000 225 #define ATA_AHCI_P_CMD_ALPE 0x04000000 226 #define ATA_AHCI_P_CMD_ASP 0x08000000 227 #define ATA_AHCI_P_CMD_ICC_MASK 0xf0000000 228 #define ATA_AHCI_P_CMD_NOOP 0x00000000 229 #define ATA_AHCI_P_CMD_ACTIVE 0x10000000 230 #define ATA_AHCI_P_CMD_PARTIAL 0x20000000 231 #define ATA_AHCI_P_CMD_SLUMPER 0x60000000 232 233 #define ATA_AHCI_P_TFD 0x120 234 #define ATA_AHCI_P_SIG 0x124 235 #define ATA_AHCI_P_SSTS 0x128 236 #define ATA_AHCI_P_SCTL 0x12c 237 #define ATA_AHCI_P_SERR 0x130 238 #define ATA_AHCI_P_SACT 0x134 239 #define ATA_AHCI_P_CI 0x138 240 241 #define ATA_AHCI_CL_SIZE 32 242 #define ATA_AHCI_CL_OFFSET 0 243 #define ATA_AHCI_FB_OFFSET 1024 244 #define ATA_AHCI_CT_OFFSET 1024+256 245 #define ATA_AHCI_CT_SG_OFFSET 128 246 #define ATA_AHCI_CT_SIZE 256 247 248 /* DMA register defines */ 249 #define ATA_DMA_ENTRIES 256 250 #define ATA_DMA_EOT 0x80000000 251 252 #define ATA_BMCMD_PORT 17 253 #define ATA_BMCMD_START_STOP 0x01 254 #define ATA_BMCMD_WRITE_READ 0x08 255 256 #define ATA_BMDEVSPEC_0 18 257 #define ATA_BMSTAT_PORT 19 258 #define ATA_BMSTAT_ACTIVE 0x01 259 #define ATA_BMSTAT_ERROR 0x02 260 #define ATA_BMSTAT_INTERRUPT 0x04 261 #define ATA_BMSTAT_MASK 0x07 262 #define ATA_BMSTAT_DMA_MASTER 0x20 263 #define ATA_BMSTAT_DMA_SLAVE 0x40 264 #define ATA_BMSTAT_DMA_SIMPLEX 0x80 265 266 #define ATA_BMDEVSPEC_1 20 267 #define ATA_BMDTP_PORT 21 268 269 #define ATA_IDX_ADDR 22 270 #define ATA_IDX_DATA 23 271 #define ATA_MAX_RES 24 272 273 /* misc defines */ 274 #define ATA_PRIMARY 0x1f0 275 #define ATA_SECONDARY 0x170 276 #define ATA_PC98_BANK 0x432 277 #define ATA_IOSIZE 0x08 278 #define ATA_PC98_IOSIZE 0x10 279 #define ATA_CTLIOSIZE 0x01 280 #define ATA_BMIOSIZE 0x08 281 #define ATA_PC98_BANKIOSIZE 0x01 282 #define ATA_IOADDR_RID 0 283 #define ATA_CTLADDR_RID 1 284 #define ATA_BMADDR_RID 0x20 285 #define ATA_PC98_CTLADDR_RID 8 286 #define ATA_PC98_BANKADDR_RID 9 287 #define ATA_IRQ_RID 0 288 #define ATA_DEV(device) ((device == ATA_MASTER) ? 0 : 1) 289 #define ATA_CFA_MAGIC 0x848A 290 #define ATAPI_MAGIC_LSB 0x14 291 #define ATAPI_MAGIC_MSB 0xeb 292 #define ATAPI_P_READ (ATA_S_DRQ | ATA_I_IN) 293 #define ATAPI_P_WRITE (ATA_S_DRQ) 294 #define ATAPI_P_CMDOUT (ATA_S_DRQ | ATA_I_CMD) 295 #define ATAPI_P_DONEDRQ (ATA_S_DRQ | ATA_I_CMD | ATA_I_IN) 296 #define ATAPI_P_DONE (ATA_I_CMD | ATA_I_IN) 297 #define ATAPI_P_ABORT 0 298 #define ATA_INTR_FLAGS (INTR_MPSAFE|INTR_TYPE_BIO|INTR_ENTROPY) 299 #define ATA_OP_CONTINUES 0 300 #define ATA_OP_FINISHED 1 301 #define ATA_MAX_28BIT_LBA 268435455 302 303 /* ATAPI request sense structure */ 304 struct atapi_sense { 305 u_int8_t error_code :7; /* current or deferred errors */ 306 u_int8_t valid :1; /* follows ATAPI spec */ 307 u_int8_t segment; /* Segment number */ 308 u_int8_t sense_key :4; /* sense key */ 309 u_int8_t reserved2_4 :1; /* reserved */ 310 u_int8_t ili :1; /* incorrect length indicator */ 311 u_int8_t eom :1; /* end of medium */ 312 u_int8_t filemark :1; /* filemark */ 313 u_int32_t cmd_info __packed; /* cmd information */ 314 u_int8_t sense_length; /* additional sense len (n-7) */ 315 u_int32_t cmd_specific_info __packed; /* additional cmd spec info */ 316 u_int8_t asc; /* additional sense code */ 317 u_int8_t ascq; /* additional sense code qual */ 318 u_int8_t replaceable_unit_code; /* replaceable unit code */ 319 u_int8_t sk_specific :7; /* sense key specific */ 320 u_int8_t sksv :1; /* sense key specific info OK */ 321 u_int8_t sk_specific1; /* sense key specific */ 322 u_int8_t sk_specific2; /* sense key specific */ 323 }; 324 325 /* structure used for composite atomic operations */ 326 struct ata_composite { 327 struct mtx lock; /* control lock */ 328 u_int32_t rd_needed; /* needed read subdisks */ 329 u_int32_t rd_done; /* done read subdisks */ 330 u_int32_t wr_needed; /* needed write subdisks */ 331 u_int32_t wr_depend; /* write depends on subdisks */ 332 u_int32_t wr_done; /* done write subdisks */ 333 struct ata_request *request[32]; /* size must match maps above */ 334 caddr_t data_1; 335 caddr_t data_2; 336 }; 337 338 /* structure used to queue an ATA/ATAPI request */ 339 struct ata_request { 340 device_t dev; /* device handle */ 341 union { 342 struct { 343 u_int8_t command; /* command reg */ 344 u_int16_t feature; /* feature reg */ 345 u_int16_t count; /* count reg */ 346 u_int64_t lba; /* lba reg */ 347 } ata; 348 struct { 349 u_int8_t ccb[16]; /* ATAPI command block */ 350 struct atapi_sense sense_data; /* ATAPI request sense data */ 351 u_int8_t sense_key; /* ATAPI request sense key */ 352 u_int8_t sense_cmd; /* ATAPI saved command */ 353 } atapi; 354 } u; 355 u_int32_t bytecount; /* bytes to transfer */ 356 u_int32_t transfersize; /* bytes pr transfer */ 357 caddr_t data; /* pointer to data buf */ 358 int flags; 359 #define ATA_R_CONTROL 0x00000001 360 #define ATA_R_READ 0x00000002 361 #define ATA_R_WRITE 0x00000004 362 #define ATA_R_ATAPI 0x00000008 363 #define ATA_R_DMA 0x00000010 364 #define ATA_R_QUIET 0x00000020 365 #define ATA_R_TIMEOUT 0x00000040 366 367 #define ATA_R_ORDERED 0x00000100 368 #define ATA_R_AT_HEAD 0x00000200 369 #define ATA_R_REQUEUE 0x00000400 370 #define ATA_R_THREAD 0x00000800 371 #define ATA_R_DIRECT 0x00001000 372 373 #define ATA_R_DEBUG 0x10000000 374 375 u_int8_t status; /* ATA status */ 376 u_int8_t error; /* ATA error */ 377 u_int8_t dmastat; /* DMA status */ 378 u_int32_t donecount; /* bytes transferred */ 379 int result; /* result error code */ 380 void (*callback)(struct ata_request *request); 381 struct sema done; /* request done sema */ 382 int retries; /* retry count */ 383 int timeout; /* timeout for this cmd */ 384 struct callout callout; /* callout management */ 385 struct task task; /* task management */ 386 struct bio *bio; /* bio for this request */ 387 int this; /* this request ID */ 388 struct ata_composite *composite; /* for composite atomic ops */ 389 void *driver; /* driver specific */ 390 TAILQ_ENTRY(ata_request) chain; /* list management */ 391 }; 392 393 /* define this for debugging request processing */ 394 #if 0 395 #define ATA_DEBUG_RQ(request, string) \ 396 { \ 397 if (request->flags & ATA_R_DEBUG) \ 398 device_printf(request->dev, "req=%p %s " string "\n", \ 399 request, ata_cmd2str(request)); \ 400 } 401 #else 402 #define ATA_DEBUG_RQ(request, string) 403 #endif 404 405 406 /* structure describing an ATA/ATAPI device */ 407 struct ata_device { 408 device_t dev; /* device handle */ 409 int unit; /* physical unit */ 410 #define ATA_MASTER 0x00 411 #define ATA_SLAVE 0x10 412 413 struct ata_params param; /* ata param structure */ 414 int mode; /* current transfermode */ 415 u_int32_t max_iosize; /* max IO size */ 416 int cmd; /* last cmd executed */ 417 int flags; 418 #define ATA_D_USE_CHS 0x0001 419 #define ATA_D_MEDIA_CHANGED 0x0002 420 #define ATA_D_ENC_PRESENT 0x0004 421 #define ATA_D_48BIT_ACTIVE 0x0008 422 }; 423 424 /* structure for holding DMA Physical Region Descriptors (PRD) entries */ 425 struct ata_dma_prdentry { 426 u_int32_t addr; 427 u_int32_t count; 428 }; 429 430 /* structure used by the setprd function */ 431 struct ata_dmasetprd_args { 432 void *dmatab; 433 int nsegs; 434 int error; 435 }; 436 437 /* structure holding DMA related information */ 438 struct ata_dma { 439 bus_dma_tag_t dmatag; /* parent DMA tag */ 440 bus_dma_tag_t sg_tag; /* SG list DMA tag */ 441 bus_dmamap_t sg_map; /* SG list DMA map */ 442 void *sg; /* DMA transfer table */ 443 bus_addr_t sg_bus; /* bus address of dmatab */ 444 bus_dma_tag_t data_tag; /* data DMA tag */ 445 bus_dmamap_t data_map; /* data DMA map */ 446 bus_dma_tag_t work_tag; /* workspace DMA tag */ 447 bus_dmamap_t work_map; /* workspace DMA map */ 448 u_int8_t *work; /* workspace */ 449 bus_addr_t work_bus; /* bus address of dmatab */ 450 451 u_int32_t alignment; /* DMA engine alignment */ 452 u_int32_t boundary; /* DMA engine boundary */ 453 u_int32_t max_iosize; /* DMA engine max IO size */ 454 u_int32_t cur_iosize; /* DMA engine current IO size */ 455 int flags; 456 #define ATA_DMA_READ 0x01 /* transaction is a read */ 457 #define ATA_DMA_LOADED 0x02 /* DMA tables etc loaded */ 458 #define ATA_DMA_ACTIVE 0x04 /* DMA transfer in progress */ 459 460 void (*alloc)(device_t dev); 461 void (*free)(device_t dev); 462 void (*setprd)(void *xsc, bus_dma_segment_t *segs, int nsegs, int error); 463 int (*load)(device_t dev, caddr_t data, int32_t count, int dir, void *addr, int *nsegs); 464 int (*unload)(device_t dev); 465 int (*start)(device_t dev); 466 int (*stop)(device_t dev); 467 void (*reset)(device_t dev); 468 }; 469 470 /* structure holding lowlevel functions */ 471 struct ata_lowlevel { 472 int (*begin_transaction)(struct ata_request *request); 473 int (*end_transaction)(struct ata_request *request); 474 int (*command)(struct ata_request *request); 475 }; 476 477 /* structure holding resources for an ATA channel */ 478 struct ata_resource { 479 struct resource *res; 480 int offset; 481 }; 482 483 /* structure describing an ATA channel */ 484 struct ata_channel { 485 device_t dev; /* device handle */ 486 int unit; /* physical channel */ 487 struct ata_resource r_io[ATA_MAX_RES];/* I/O resources */ 488 struct resource *r_irq; /* interrupt of this channel */ 489 void *ih; /* interrupt handle */ 490 struct ata_lowlevel hw; /* lowlevel HW functions */ 491 struct ata_dma *dma; /* DMA data / functions */ 492 int flags; /* channel flags */ 493 #define ATA_NO_SLAVE 0x01 494 #define ATA_USE_16BIT 0x02 495 #define ATA_ATAPI_DMA_RO 0x04 496 #define ATA_NO_48BIT_DMA 0x08 497 498 int devices; /* what is present */ 499 #define ATA_ATA_MASTER 0x01 500 #define ATA_ATA_SLAVE 0x02 501 #define ATA_ATAPI_MASTER 0x04 502 #define ATA_ATAPI_SLAVE 0x08 503 504 struct mtx state_mtx; /* state lock */ 505 int state; /* ATA channel state */ 506 #define ATA_IDLE 0x0000 507 #define ATA_ACTIVE 0x0001 508 #define ATA_STALL_QUEUE 0x0002 509 510 struct mtx queue_mtx; /* queue lock */ 511 TAILQ_HEAD(, ata_request) ata_queue; /* head of ATA queue */ 512 struct ata_request *freezepoint; /* composite freezepoint */ 513 struct ata_request *running; /* currently running request */ 514 }; 515 516 /* disk bay/enclosure related */ 517 #define ATA_LED_OFF 0x00 518 #define ATA_LED_RED 0x01 519 #define ATA_LED_GREEN 0x02 520 #define ATA_LED_ORANGE 0x03 521 #define ATA_LED_MASK 0x03 522 523 /* externs */ 524 extern int (*ata_raid_ioctl_func)(u_long cmd, caddr_t data); 525 extern devclass_t ata_devclass; 526 extern int ata_wc; 527 528 /* public prototypes */ 529 /* ata-all.c: */ 530 int ata_probe(device_t dev); 531 int ata_attach(device_t dev); 532 int ata_detach(device_t dev); 533 int ata_reinit(device_t dev); 534 int ata_suspend(device_t dev); 535 int ata_resume(device_t dev); 536 int ata_device_ioctl(device_t dev, u_long cmd, caddr_t data); 537 int ata_identify(device_t dev); 538 void ata_default_registers(device_t dev); 539 void ata_modify_if_48bit(struct ata_request *request); 540 void ata_udelay(int interval); 541 char *ata_mode2str(int mode); 542 int ata_pmode(struct ata_params *ap); 543 int ata_wmode(struct ata_params *ap); 544 int ata_umode(struct ata_params *ap); 545 int ata_limit_mode(device_t dev, int mode, int maxmode); 546 547 /* ata-queue.c: */ 548 int ata_controlcmd(device_t dev, u_int8_t command, u_int16_t feature, u_int64_t lba, u_int16_t count); 549 int ata_atapicmd(device_t dev, u_int8_t *ccb, caddr_t data, int count, int flags, int timeout); 550 void ata_queue_request(struct ata_request *request); 551 void ata_start(device_t dev); 552 void ata_finish(struct ata_request *request); 553 void ata_timeout(struct ata_request *); 554 void ata_catch_inflight(device_t dev); 555 void ata_fail_requests(device_t dev); 556 char *ata_cmd2str(struct ata_request *request); 557 558 /* ata-lowlevel.c: */ 559 void ata_generic_hw(device_t dev); 560 void ata_generic_reset(device_t dev); 561 int ata_generic_command(struct ata_request *request); 562 563 /* macros for alloc/free of struct ata_request */ 564 extern uma_zone_t ata_request_zone; 565 #define ata_alloc_request() uma_zalloc(ata_request_zone, M_NOWAIT | M_ZERO) 566 #define ata_free_request(request) uma_zfree(ata_request_zone, request) 567 568 /* macros for alloc/free of struct ata_composite */ 569 extern uma_zone_t ata_composite_zone; 570 #define ata_alloc_composite() uma_zalloc(ata_composite_zone, M_NOWAIT | M_ZERO) 571 #define ata_free_composite(composite) uma_zfree(ata_composite_zone, composite) 572 573 MALLOC_DECLARE(M_ATA); 574 575 /* misc newbus defines */ 576 #define GRANDPARENT(dev) device_get_parent(device_get_parent(dev)) 577 578 /* macros to hide busspace uglyness */ 579 #define ATA_INB(res, offset) \ 580 bus_space_read_1(rman_get_bustag((res)), \ 581 rman_get_bushandle((res)), (offset)) 582 583 #define ATA_INW(res, offset) \ 584 bus_space_read_2(rman_get_bustag((res)), \ 585 rman_get_bushandle((res)), (offset)) 586 #define ATA_INL(res, offset) \ 587 bus_space_read_4(rman_get_bustag((res)), \ 588 rman_get_bushandle((res)), (offset)) 589 #define ATA_INSW(res, offset, addr, count) \ 590 bus_space_read_multi_2(rman_get_bustag((res)), \ 591 rman_get_bushandle((res)), \ 592 (offset), (addr), (count)) 593 #define ATA_INSW_STRM(res, offset, addr, count) \ 594 bus_space_read_multi_stream_2(rman_get_bustag((res)), \ 595 rman_get_bushandle((res)), \ 596 (offset), (addr), (count)) 597 #define ATA_INSL(res, offset, addr, count) \ 598 bus_space_read_multi_4(rman_get_bustag((res)), \ 599 rman_get_bushandle((res)), \ 600 (offset), (addr), (count)) 601 #define ATA_INSL_STRM(res, offset, addr, count) \ 602 bus_space_read_multi_stream_4(rman_get_bustag((res)), \ 603 rman_get_bushandle((res)), \ 604 (offset), (addr), (count)) 605 #define ATA_OUTB(res, offset, value) \ 606 bus_space_write_1(rman_get_bustag((res)), \ 607 rman_get_bushandle((res)), (offset), (value)) 608 #define ATA_OUTW(res, offset, value) \ 609 bus_space_write_2(rman_get_bustag((res)), \ 610 rman_get_bushandle((res)), (offset), (value)) 611 #define ATA_OUTL(res, offset, value) \ 612 bus_space_write_4(rman_get_bustag((res)), \ 613 rman_get_bushandle((res)), (offset), (value)) 614 #define ATA_OUTSW(res, offset, addr, count) \ 615 bus_space_write_multi_2(rman_get_bustag((res)), \ 616 rman_get_bushandle((res)), \ 617 (offset), (addr), (count)) 618 #define ATA_OUTSW_STRM(res, offset, addr, count) \ 619 bus_space_write_multi_stream_2(rman_get_bustag((res)), \ 620 rman_get_bushandle((res)), \ 621 (offset), (addr), (count)) 622 #define ATA_OUTSL(res, offset, addr, count) \ 623 bus_space_write_multi_4(rman_get_bustag((res)), \ 624 rman_get_bushandle((res)), \ 625 (offset), (addr), (count)) 626 #define ATA_OUTSL_STRM(res, offset, addr, count) \ 627 bus_space_write_multi_stream_4(rman_get_bustag((res)), \ 628 rman_get_bushandle((res)), \ 629 (offset), (addr), (count)) 630 631 #define ATA_IDX_INB(ch, idx) \ 632 ATA_INB(ch->r_io[idx].res, ch->r_io[idx].offset) 633 634 #define ATA_IDX_INW(ch, idx) \ 635 ATA_INW(ch->r_io[idx].res, ch->r_io[idx].offset) 636 637 #define ATA_IDX_INL(ch, idx) \ 638 ATA_INL(ch->r_io[idx].res, ch->r_io[idx].offset) 639 640 #define ATA_IDX_INSW(ch, idx, addr, count) \ 641 ATA_INSW(ch->r_io[idx].res, ch->r_io[idx].offset, addr, count) 642 643 #define ATA_IDX_INSW_STRM(ch, idx, addr, count) \ 644 ATA_INSW_STRM(ch->r_io[idx].res, ch->r_io[idx].offset, addr, count) 645 646 #define ATA_IDX_INSL(ch, idx, addr, count) \ 647 ATA_INSL(ch->r_io[idx].res, ch->r_io[idx].offset, addr, count) 648 649 #define ATA_IDX_INSL_STRM(ch, idx, addr, count) \ 650 ATA_INSL_STRM(ch->r_io[idx].res, ch->r_io[idx].offset, addr, count) 651 652 #define ATA_IDX_OUTB(ch, idx, value) \ 653 ATA_OUTB(ch->r_io[idx].res, ch->r_io[idx].offset, value) 654 655 #define ATA_IDX_OUTW(ch, idx, value) \ 656 ATA_OUTW(ch->r_io[idx].res, ch->r_io[idx].offset, value) 657 658 #define ATA_IDX_OUTL(ch, idx, value) \ 659 ATA_OUTL(ch->r_io[idx].res, ch->r_io[idx].offset, value) 660 661 #define ATA_IDX_OUTSW(ch, idx, addr, count) \ 662 ATA_OUTSW(ch->r_io[idx].res, ch->r_io[idx].offset, addr, count) 663 664 #define ATA_IDX_OUTSW_STRM(ch, idx, addr, count) \ 665 ATA_OUTSW_STRM(ch->r_io[idx].res, ch->r_io[idx].offset, addr, count) 666 667 #define ATA_IDX_OUTSL(ch, idx, addr, count) \ 668 ATA_OUTSL(ch->r_io[idx].res, ch->r_io[idx].offset, addr, count) 669 670 #define ATA_IDX_OUTSL_STRM(ch, idx, addr, count) \ 671 ATA_OUTSL_STRM(ch->r_io[idx].res, ch->r_io[idx].offset, addr, count) 672