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1.1 ! root 1: /* ! 2: * QEMU IDE disk and CD/DVD-ROM Emulator ! 3: * ! 4: * Copyright (c) 2003 Fabrice Bellard ! 5: * Copyright (c) 2006 Openedhand Ltd. ! 6: * ! 7: * Permission is hereby granted, free of charge, to any person obtaining a copy ! 8: * of this software and associated documentation files (the "Software"), to deal ! 9: * in the Software without restriction, including without limitation the rights ! 10: * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell ! 11: * copies of the Software, and to permit persons to whom the Software is ! 12: * furnished to do so, subject to the following conditions: ! 13: * ! 14: * The above copyright notice and this permission notice shall be included in ! 15: * all copies or substantial portions of the Software. ! 16: * ! 17: * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR ! 18: * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, ! 19: * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL ! 20: * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER ! 21: * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, ! 22: * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN ! 23: * THE SOFTWARE. ! 24: */ ! 25: #include <hw/hw.h> ! 26: #include <hw/pc.h> ! 27: #include <hw/pci.h> ! 28: #include <hw/scsi.h> ! 29: #include <hw/sh.h> ! 30: #include "block.h" ! 31: #include "block_int.h" ! 32: #include "qemu-timer.h" ! 33: #include "sysemu.h" ! 34: #include "dma.h" ! 35: ! 36: #include <hw/ide/internal.h> ! 37: ! 38: static int smart_attributes[][5] = { ! 39: /* id, flags, val, wrst, thrsh */ ! 40: { 0x01, 0x03, 0x64, 0x64, 0x06}, /* raw read */ ! 41: { 0x03, 0x03, 0x64, 0x64, 0x46}, /* spin up */ ! 42: { 0x04, 0x02, 0x64, 0x64, 0x14}, /* start stop count */ ! 43: { 0x05, 0x03, 0x64, 0x64, 0x36}, /* remapped sectors */ ! 44: { 0x00, 0x00, 0x00, 0x00, 0x00} ! 45: }; ! 46: ! 47: /* XXX: DVDs that could fit on a CD will be reported as a CD */ ! 48: static inline int media_present(IDEState *s) ! 49: { ! 50: return (s->nb_sectors > 0); ! 51: } ! 52: ! 53: static inline int media_is_dvd(IDEState *s) ! 54: { ! 55: return (media_present(s) && s->nb_sectors > CD_MAX_SECTORS); ! 56: } ! 57: ! 58: static inline int media_is_cd(IDEState *s) ! 59: { ! 60: return (media_present(s) && s->nb_sectors <= CD_MAX_SECTORS); ! 61: } ! 62: ! 63: static void ide_dma_start(IDEState *s, BlockDriverCompletionFunc *dma_cb); ! 64: static void ide_dma_restart(IDEState *s, int is_read); ! 65: static void ide_atapi_cmd_read_dma_cb(void *opaque, int ret); ! 66: static int ide_handle_rw_error(IDEState *s, int error, int op); ! 67: ! 68: static void padstr(char *str, const char *src, int len) ! 69: { ! 70: int i, v; ! 71: for(i = 0; i < len; i++) { ! 72: if (*src) ! 73: v = *src++; ! 74: else ! 75: v = ' '; ! 76: str[i^1] = v; ! 77: } ! 78: } ! 79: ! 80: static void padstr8(uint8_t *buf, int buf_size, const char *src) ! 81: { ! 82: int i; ! 83: for(i = 0; i < buf_size; i++) { ! 84: if (*src) ! 85: buf[i] = *src++; ! 86: else ! 87: buf[i] = ' '; ! 88: } ! 89: } ! 90: ! 91: static void put_le16(uint16_t *p, unsigned int v) ! 92: { ! 93: *p = cpu_to_le16(v); ! 94: } ! 95: ! 96: static void ide_identify(IDEState *s) ! 97: { ! 98: uint16_t *p; ! 99: unsigned int oldsize; ! 100: ! 101: if (s->identify_set) { ! 102: memcpy(s->io_buffer, s->identify_data, sizeof(s->identify_data)); ! 103: return; ! 104: } ! 105: ! 106: memset(s->io_buffer, 0, 512); ! 107: p = (uint16_t *)s->io_buffer; ! 108: put_le16(p + 0, 0x0040); ! 109: put_le16(p + 1, s->cylinders); ! 110: put_le16(p + 3, s->heads); ! 111: put_le16(p + 4, 512 * s->sectors); /* XXX: retired, remove ? */ ! 112: put_le16(p + 5, 512); /* XXX: retired, remove ? */ ! 113: put_le16(p + 6, s->sectors); ! 114: padstr((char *)(p + 10), s->drive_serial_str, 20); /* serial number */ ! 115: put_le16(p + 20, 3); /* XXX: retired, remove ? */ ! 116: put_le16(p + 21, 512); /* cache size in sectors */ ! 117: put_le16(p + 22, 4); /* ecc bytes */ ! 118: padstr((char *)(p + 23), QEMU_VERSION, 8); /* firmware version */ ! 119: padstr((char *)(p + 27), "QEMU HARDDISK", 40); /* model */ ! 120: #if MAX_MULT_SECTORS > 1 ! 121: put_le16(p + 47, 0x8000 | MAX_MULT_SECTORS); ! 122: #endif ! 123: put_le16(p + 48, 1); /* dword I/O */ ! 124: put_le16(p + 49, (1 << 11) | (1 << 9) | (1 << 8)); /* DMA and LBA supported */ ! 125: put_le16(p + 51, 0x200); /* PIO transfer cycle */ ! 126: put_le16(p + 52, 0x200); /* DMA transfer cycle */ ! 127: put_le16(p + 53, 1 | (1 << 1) | (1 << 2)); /* words 54-58,64-70,88 are valid */ ! 128: put_le16(p + 54, s->cylinders); ! 129: put_le16(p + 55, s->heads); ! 130: put_le16(p + 56, s->sectors); ! 131: oldsize = s->cylinders * s->heads * s->sectors; ! 132: put_le16(p + 57, oldsize); ! 133: put_le16(p + 58, oldsize >> 16); ! 134: if (s->mult_sectors) ! 135: put_le16(p + 59, 0x100 | s->mult_sectors); ! 136: put_le16(p + 60, s->nb_sectors); ! 137: put_le16(p + 61, s->nb_sectors >> 16); ! 138: put_le16(p + 62, 0x07); /* single word dma0-2 supported */ ! 139: put_le16(p + 63, 0x07); /* mdma0-2 supported */ ! 140: put_le16(p + 65, 120); ! 141: put_le16(p + 66, 120); ! 142: put_le16(p + 67, 120); ! 143: put_le16(p + 68, 120); ! 144: put_le16(p + 80, 0xf0); /* ata3 -> ata6 supported */ ! 145: put_le16(p + 81, 0x16); /* conforms to ata5 */ ! 146: /* 14=NOP supported, 0=SMART supported */ ! 147: put_le16(p + 82, (1 << 14) | 1); ! 148: /* 13=flush_cache_ext,12=flush_cache,10=lba48 */ ! 149: put_le16(p + 83, (1 << 14) | (1 << 13) | (1 <<12) | (1 << 10)); ! 150: /* 14=set to 1, 1=SMART self test, 0=SMART error logging */ ! 151: put_le16(p + 84, (1 << 14) | 0); ! 152: /* 14 = NOP supported, 5=WCACHE enabled, 0=SMART feature set enabled */ ! 153: if (bdrv_enable_write_cache(s->bs)) ! 154: put_le16(p + 85, (1 << 14) | (1 << 5) | 1); ! 155: else ! 156: put_le16(p + 85, (1 << 14) | 1); ! 157: /* 13=flush_cache_ext,12=flush_cache,10=lba48 */ ! 158: put_le16(p + 86, (1 << 14) | (1 << 13) | (1 <<12) | (1 << 10)); ! 159: /* 14=set to 1, 1=smart self test, 0=smart error logging */ ! 160: put_le16(p + 87, (1 << 14) | 0); ! 161: put_le16(p + 88, 0x3f | (1 << 13)); /* udma5 set and supported */ ! 162: put_le16(p + 93, 1 | (1 << 14) | 0x2000); ! 163: put_le16(p + 100, s->nb_sectors); ! 164: put_le16(p + 101, s->nb_sectors >> 16); ! 165: put_le16(p + 102, s->nb_sectors >> 32); ! 166: put_le16(p + 103, s->nb_sectors >> 48); ! 167: ! 168: memcpy(s->identify_data, p, sizeof(s->identify_data)); ! 169: s->identify_set = 1; ! 170: } ! 171: ! 172: static void ide_atapi_identify(IDEState *s) ! 173: { ! 174: uint16_t *p; ! 175: ! 176: if (s->identify_set) { ! 177: memcpy(s->io_buffer, s->identify_data, sizeof(s->identify_data)); ! 178: return; ! 179: } ! 180: ! 181: memset(s->io_buffer, 0, 512); ! 182: p = (uint16_t *)s->io_buffer; ! 183: /* Removable CDROM, 50us response, 12 byte packets */ ! 184: put_le16(p + 0, (2 << 14) | (5 << 8) | (1 << 7) | (2 << 5) | (0 << 0)); ! 185: padstr((char *)(p + 10), s->drive_serial_str, 20); /* serial number */ ! 186: put_le16(p + 20, 3); /* buffer type */ ! 187: put_le16(p + 21, 512); /* cache size in sectors */ ! 188: put_le16(p + 22, 4); /* ecc bytes */ ! 189: padstr((char *)(p + 23), QEMU_VERSION, 8); /* firmware version */ ! 190: padstr((char *)(p + 27), "QEMU DVD-ROM", 40); /* model */ ! 191: put_le16(p + 48, 1); /* dword I/O (XXX: should not be set on CDROM) */ ! 192: #ifdef USE_DMA_CDROM ! 193: put_le16(p + 49, 1 << 9 | 1 << 8); /* DMA and LBA supported */ ! 194: put_le16(p + 53, 7); /* words 64-70, 54-58, 88 valid */ ! 195: put_le16(p + 62, 7); /* single word dma0-2 supported */ ! 196: put_le16(p + 63, 7); /* mdma0-2 supported */ ! 197: put_le16(p + 64, 0x3f); /* PIO modes supported */ ! 198: #else ! 199: put_le16(p + 49, 1 << 9); /* LBA supported, no DMA */ ! 200: put_le16(p + 53, 3); /* words 64-70, 54-58 valid */ ! 201: put_le16(p + 63, 0x103); /* DMA modes XXX: may be incorrect */ ! 202: put_le16(p + 64, 1); /* PIO modes */ ! 203: #endif ! 204: put_le16(p + 65, 0xb4); /* minimum DMA multiword tx cycle time */ ! 205: put_le16(p + 66, 0xb4); /* recommended DMA multiword tx cycle time */ ! 206: put_le16(p + 67, 0x12c); /* minimum PIO cycle time without flow control */ ! 207: put_le16(p + 68, 0xb4); /* minimum PIO cycle time with IORDY flow control */ ! 208: ! 209: put_le16(p + 71, 30); /* in ns */ ! 210: put_le16(p + 72, 30); /* in ns */ ! 211: ! 212: put_le16(p + 80, 0x1e); /* support up to ATA/ATAPI-4 */ ! 213: #ifdef USE_DMA_CDROM ! 214: put_le16(p + 88, 0x3f | (1 << 13)); /* udma5 set and supported */ ! 215: #endif ! 216: memcpy(s->identify_data, p, sizeof(s->identify_data)); ! 217: s->identify_set = 1; ! 218: } ! 219: ! 220: static void ide_cfata_identify(IDEState *s) ! 221: { ! 222: uint16_t *p; ! 223: uint32_t cur_sec; ! 224: ! 225: p = (uint16_t *) s->identify_data; ! 226: if (s->identify_set) ! 227: goto fill_buffer; ! 228: ! 229: memset(p, 0, sizeof(s->identify_data)); ! 230: ! 231: cur_sec = s->cylinders * s->heads * s->sectors; ! 232: ! 233: put_le16(p + 0, 0x848a); /* CF Storage Card signature */ ! 234: put_le16(p + 1, s->cylinders); /* Default cylinders */ ! 235: put_le16(p + 3, s->heads); /* Default heads */ ! 236: put_le16(p + 6, s->sectors); /* Default sectors per track */ ! 237: put_le16(p + 7, s->nb_sectors >> 16); /* Sectors per card */ ! 238: put_le16(p + 8, s->nb_sectors); /* Sectors per card */ ! 239: padstr((char *)(p + 10), s->drive_serial_str, 20); /* serial number */ ! 240: put_le16(p + 22, 0x0004); /* ECC bytes */ ! 241: padstr((char *) (p + 23), QEMU_VERSION, 8); /* Firmware Revision */ ! 242: padstr((char *) (p + 27), "QEMU MICRODRIVE", 40);/* Model number */ ! 243: #if MAX_MULT_SECTORS > 1 ! 244: put_le16(p + 47, 0x8000 | MAX_MULT_SECTORS); ! 245: #else ! 246: put_le16(p + 47, 0x0000); ! 247: #endif ! 248: put_le16(p + 49, 0x0f00); /* Capabilities */ ! 249: put_le16(p + 51, 0x0002); /* PIO cycle timing mode */ ! 250: put_le16(p + 52, 0x0001); /* DMA cycle timing mode */ ! 251: put_le16(p + 53, 0x0003); /* Translation params valid */ ! 252: put_le16(p + 54, s->cylinders); /* Current cylinders */ ! 253: put_le16(p + 55, s->heads); /* Current heads */ ! 254: put_le16(p + 56, s->sectors); /* Current sectors */ ! 255: put_le16(p + 57, cur_sec); /* Current capacity */ ! 256: put_le16(p + 58, cur_sec >> 16); /* Current capacity */ ! 257: if (s->mult_sectors) /* Multiple sector setting */ ! 258: put_le16(p + 59, 0x100 | s->mult_sectors); ! 259: put_le16(p + 60, s->nb_sectors); /* Total LBA sectors */ ! 260: put_le16(p + 61, s->nb_sectors >> 16); /* Total LBA sectors */ ! 261: put_le16(p + 63, 0x0203); /* Multiword DMA capability */ ! 262: put_le16(p + 64, 0x0001); /* Flow Control PIO support */ ! 263: put_le16(p + 65, 0x0096); /* Min. Multiword DMA cycle */ ! 264: put_le16(p + 66, 0x0096); /* Rec. Multiword DMA cycle */ ! 265: put_le16(p + 68, 0x00b4); /* Min. PIO cycle time */ ! 266: put_le16(p + 82, 0x400c); /* Command Set supported */ ! 267: put_le16(p + 83, 0x7068); /* Command Set supported */ ! 268: put_le16(p + 84, 0x4000); /* Features supported */ ! 269: put_le16(p + 85, 0x000c); /* Command Set enabled */ ! 270: put_le16(p + 86, 0x7044); /* Command Set enabled */ ! 271: put_le16(p + 87, 0x4000); /* Features enabled */ ! 272: put_le16(p + 91, 0x4060); /* Current APM level */ ! 273: put_le16(p + 129, 0x0002); /* Current features option */ ! 274: put_le16(p + 130, 0x0005); /* Reassigned sectors */ ! 275: put_le16(p + 131, 0x0001); /* Initial power mode */ ! 276: put_le16(p + 132, 0x0000); /* User signature */ ! 277: put_le16(p + 160, 0x8100); /* Power requirement */ ! 278: put_le16(p + 161, 0x8001); /* CF command set */ ! 279: ! 280: s->identify_set = 1; ! 281: ! 282: fill_buffer: ! 283: memcpy(s->io_buffer, p, sizeof(s->identify_data)); ! 284: } ! 285: ! 286: static void ide_set_signature(IDEState *s) ! 287: { ! 288: s->select &= 0xf0; /* clear head */ ! 289: /* put signature */ ! 290: s->nsector = 1; ! 291: s->sector = 1; ! 292: if (s->is_cdrom) { ! 293: s->lcyl = 0x14; ! 294: s->hcyl = 0xeb; ! 295: } else if (s->bs) { ! 296: s->lcyl = 0; ! 297: s->hcyl = 0; ! 298: } else { ! 299: s->lcyl = 0xff; ! 300: s->hcyl = 0xff; ! 301: } ! 302: } ! 303: ! 304: static inline void ide_abort_command(IDEState *s) ! 305: { ! 306: s->status = READY_STAT | ERR_STAT; ! 307: s->error = ABRT_ERR; ! 308: } ! 309: ! 310: static inline void ide_dma_submit_check(IDEState *s, ! 311: BlockDriverCompletionFunc *dma_cb, BMDMAState *bm) ! 312: { ! 313: if (bm->aiocb) ! 314: return; ! 315: dma_cb(bm, -1); ! 316: } ! 317: ! 318: /* prepare data transfer and tell what to do after */ ! 319: static void ide_transfer_start(IDEState *s, uint8_t *buf, int size, ! 320: EndTransferFunc *end_transfer_func) ! 321: { ! 322: s->end_transfer_func = end_transfer_func; ! 323: s->data_ptr = buf; ! 324: s->data_end = buf + size; ! 325: if (!(s->status & ERR_STAT)) ! 326: s->status |= DRQ_STAT; ! 327: } ! 328: ! 329: static void ide_transfer_stop(IDEState *s) ! 330: { ! 331: s->end_transfer_func = ide_transfer_stop; ! 332: s->data_ptr = s->io_buffer; ! 333: s->data_end = s->io_buffer; ! 334: s->status &= ~DRQ_STAT; ! 335: } ! 336: ! 337: int64_t ide_get_sector(IDEState *s) ! 338: { ! 339: int64_t sector_num; ! 340: if (s->select & 0x40) { ! 341: /* lba */ ! 342: if (!s->lba48) { ! 343: sector_num = ((s->select & 0x0f) << 24) | (s->hcyl << 16) | ! 344: (s->lcyl << 8) | s->sector; ! 345: } else { ! 346: sector_num = ((int64_t)s->hob_hcyl << 40) | ! 347: ((int64_t) s->hob_lcyl << 32) | ! 348: ((int64_t) s->hob_sector << 24) | ! 349: ((int64_t) s->hcyl << 16) | ! 350: ((int64_t) s->lcyl << 8) | s->sector; ! 351: } ! 352: } else { ! 353: sector_num = ((s->hcyl << 8) | s->lcyl) * s->heads * s->sectors + ! 354: (s->select & 0x0f) * s->sectors + (s->sector - 1); ! 355: } ! 356: return sector_num; ! 357: } ! 358: ! 359: void ide_set_sector(IDEState *s, int64_t sector_num) ! 360: { ! 361: unsigned int cyl, r; ! 362: if (s->select & 0x40) { ! 363: if (!s->lba48) { ! 364: s->select = (s->select & 0xf0) | (sector_num >> 24); ! 365: s->hcyl = (sector_num >> 16); ! 366: s->lcyl = (sector_num >> 8); ! 367: s->sector = (sector_num); ! 368: } else { ! 369: s->sector = sector_num; ! 370: s->lcyl = sector_num >> 8; ! 371: s->hcyl = sector_num >> 16; ! 372: s->hob_sector = sector_num >> 24; ! 373: s->hob_lcyl = sector_num >> 32; ! 374: s->hob_hcyl = sector_num >> 40; ! 375: } ! 376: } else { ! 377: cyl = sector_num / (s->heads * s->sectors); ! 378: r = sector_num % (s->heads * s->sectors); ! 379: s->hcyl = cyl >> 8; ! 380: s->lcyl = cyl; ! 381: s->select = (s->select & 0xf0) | ((r / s->sectors) & 0x0f); ! 382: s->sector = (r % s->sectors) + 1; ! 383: } ! 384: } ! 385: ! 386: static void ide_rw_error(IDEState *s) { ! 387: ide_abort_command(s); ! 388: ide_set_irq(s->bus); ! 389: } ! 390: ! 391: static void ide_sector_read(IDEState *s) ! 392: { ! 393: int64_t sector_num; ! 394: int ret, n; ! 395: ! 396: s->status = READY_STAT | SEEK_STAT; ! 397: s->error = 0; /* not needed by IDE spec, but needed by Windows */ ! 398: sector_num = ide_get_sector(s); ! 399: n = s->nsector; ! 400: if (n == 0) { ! 401: /* no more sector to read from disk */ ! 402: ide_transfer_stop(s); ! 403: } else { ! 404: #if defined(DEBUG_IDE) ! 405: printf("read sector=%" PRId64 "\n", sector_num); ! 406: #endif ! 407: if (n > s->req_nb_sectors) ! 408: n = s->req_nb_sectors; ! 409: ret = bdrv_read(s->bs, sector_num, s->io_buffer, n); ! 410: if (ret != 0) { ! 411: if (ide_handle_rw_error(s, -ret, ! 412: BM_STATUS_PIO_RETRY | BM_STATUS_RETRY_READ)) ! 413: { ! 414: return; ! 415: } ! 416: } ! 417: ide_transfer_start(s, s->io_buffer, 512 * n, ide_sector_read); ! 418: ide_set_irq(s->bus); ! 419: ide_set_sector(s, sector_num + n); ! 420: s->nsector -= n; ! 421: } ! 422: } ! 423: ! 424: ! 425: /* return 0 if buffer completed */ ! 426: static int dma_buf_prepare(BMDMAState *bm, int is_write) ! 427: { ! 428: IDEState *s = bmdma_active_if(bm); ! 429: struct { ! 430: uint32_t addr; ! 431: uint32_t size; ! 432: } prd; ! 433: int l, len; ! 434: ! 435: qemu_sglist_init(&s->sg, s->nsector / (TARGET_PAGE_SIZE/512) + 1); ! 436: s->io_buffer_size = 0; ! 437: for(;;) { ! 438: if (bm->cur_prd_len == 0) { ! 439: /* end of table (with a fail safe of one page) */ ! 440: if (bm->cur_prd_last || ! 441: (bm->cur_addr - bm->addr) >= 4096) ! 442: return s->io_buffer_size != 0; ! 443: cpu_physical_memory_read(bm->cur_addr, (uint8_t *)&prd, 8); ! 444: bm->cur_addr += 8; ! 445: prd.addr = le32_to_cpu(prd.addr); ! 446: prd.size = le32_to_cpu(prd.size); ! 447: len = prd.size & 0xfffe; ! 448: if (len == 0) ! 449: len = 0x10000; ! 450: bm->cur_prd_len = len; ! 451: bm->cur_prd_addr = prd.addr; ! 452: bm->cur_prd_last = (prd.size & 0x80000000); ! 453: } ! 454: l = bm->cur_prd_len; ! 455: if (l > 0) { ! 456: qemu_sglist_add(&s->sg, bm->cur_prd_addr, l); ! 457: bm->cur_prd_addr += l; ! 458: bm->cur_prd_len -= l; ! 459: s->io_buffer_size += l; ! 460: } ! 461: } ! 462: return 1; ! 463: } ! 464: ! 465: static void dma_buf_commit(IDEState *s, int is_write) ! 466: { ! 467: qemu_sglist_destroy(&s->sg); ! 468: } ! 469: ! 470: void ide_dma_error(IDEState *s) ! 471: { ! 472: ide_transfer_stop(s); ! 473: s->error = ABRT_ERR; ! 474: s->status = READY_STAT | ERR_STAT; ! 475: ide_set_irq(s->bus); ! 476: } ! 477: ! 478: static int ide_handle_rw_error(IDEState *s, int error, int op) ! 479: { ! 480: int is_read = (op & BM_STATUS_RETRY_READ); ! 481: BlockInterfaceErrorAction action = drive_get_on_error(s->bs, is_read); ! 482: ! 483: if (action == BLOCK_ERR_IGNORE) ! 484: return 0; ! 485: ! 486: if ((error == ENOSPC && action == BLOCK_ERR_STOP_ENOSPC) ! 487: || action == BLOCK_ERR_STOP_ANY) { ! 488: s->bus->bmdma->unit = s->unit; ! 489: s->bus->bmdma->status |= op; ! 490: vm_stop(0); ! 491: } else { ! 492: if (op & BM_STATUS_DMA_RETRY) { ! 493: dma_buf_commit(s, 0); ! 494: ide_dma_error(s); ! 495: } else { ! 496: ide_rw_error(s); ! 497: } ! 498: } ! 499: ! 500: return 1; ! 501: } ! 502: ! 503: /* return 0 if buffer completed */ ! 504: static int dma_buf_rw(BMDMAState *bm, int is_write) ! 505: { ! 506: IDEState *s = bmdma_active_if(bm); ! 507: struct { ! 508: uint32_t addr; ! 509: uint32_t size; ! 510: } prd; ! 511: int l, len; ! 512: ! 513: for(;;) { ! 514: l = s->io_buffer_size - s->io_buffer_index; ! 515: if (l <= 0) ! 516: break; ! 517: if (bm->cur_prd_len == 0) { ! 518: /* end of table (with a fail safe of one page) */ ! 519: if (bm->cur_prd_last || ! 520: (bm->cur_addr - bm->addr) >= 4096) ! 521: return 0; ! 522: cpu_physical_memory_read(bm->cur_addr, (uint8_t *)&prd, 8); ! 523: bm->cur_addr += 8; ! 524: prd.addr = le32_to_cpu(prd.addr); ! 525: prd.size = le32_to_cpu(prd.size); ! 526: len = prd.size & 0xfffe; ! 527: if (len == 0) ! 528: len = 0x10000; ! 529: bm->cur_prd_len = len; ! 530: bm->cur_prd_addr = prd.addr; ! 531: bm->cur_prd_last = (prd.size & 0x80000000); ! 532: } ! 533: if (l > bm->cur_prd_len) ! 534: l = bm->cur_prd_len; ! 535: if (l > 0) { ! 536: if (is_write) { ! 537: cpu_physical_memory_write(bm->cur_prd_addr, ! 538: s->io_buffer + s->io_buffer_index, l); ! 539: } else { ! 540: cpu_physical_memory_read(bm->cur_prd_addr, ! 541: s->io_buffer + s->io_buffer_index, l); ! 542: } ! 543: bm->cur_prd_addr += l; ! 544: bm->cur_prd_len -= l; ! 545: s->io_buffer_index += l; ! 546: } ! 547: } ! 548: return 1; ! 549: } ! 550: ! 551: static void ide_read_dma_cb(void *opaque, int ret) ! 552: { ! 553: BMDMAState *bm = opaque; ! 554: IDEState *s = bmdma_active_if(bm); ! 555: int n; ! 556: int64_t sector_num; ! 557: ! 558: if (ret < 0) { ! 559: if (ide_handle_rw_error(s, -ret, ! 560: BM_STATUS_DMA_RETRY | BM_STATUS_RETRY_READ)) ! 561: { ! 562: return; ! 563: } ! 564: } ! 565: ! 566: n = s->io_buffer_size >> 9; ! 567: sector_num = ide_get_sector(s); ! 568: if (n > 0) { ! 569: dma_buf_commit(s, 1); ! 570: sector_num += n; ! 571: ide_set_sector(s, sector_num); ! 572: s->nsector -= n; ! 573: } ! 574: ! 575: /* end of transfer ? */ ! 576: if (s->nsector == 0) { ! 577: s->status = READY_STAT | SEEK_STAT; ! 578: ide_set_irq(s->bus); ! 579: eot: ! 580: bm->status &= ~BM_STATUS_DMAING; ! 581: bm->status |= BM_STATUS_INT; ! 582: bm->dma_cb = NULL; ! 583: bm->unit = -1; ! 584: bm->aiocb = NULL; ! 585: return; ! 586: } ! 587: ! 588: /* launch next transfer */ ! 589: n = s->nsector; ! 590: s->io_buffer_index = 0; ! 591: s->io_buffer_size = n * 512; ! 592: if (dma_buf_prepare(bm, 1) == 0) ! 593: goto eot; ! 594: #ifdef DEBUG_AIO ! 595: printf("aio_read: sector_num=%" PRId64 " n=%d\n", sector_num, n); ! 596: #endif ! 597: bm->aiocb = dma_bdrv_read(s->bs, &s->sg, sector_num, ide_read_dma_cb, bm); ! 598: ide_dma_submit_check(s, ide_read_dma_cb, bm); ! 599: } ! 600: ! 601: static void ide_sector_read_dma(IDEState *s) ! 602: { ! 603: s->status = READY_STAT | SEEK_STAT | DRQ_STAT | BUSY_STAT; ! 604: s->io_buffer_index = 0; ! 605: s->io_buffer_size = 0; ! 606: s->is_read = 1; ! 607: ide_dma_start(s, ide_read_dma_cb); ! 608: } ! 609: ! 610: static void ide_sector_write_timer_cb(void *opaque) ! 611: { ! 612: IDEState *s = opaque; ! 613: ide_set_irq(s->bus); ! 614: } ! 615: ! 616: static void ide_sector_write(IDEState *s) ! 617: { ! 618: int64_t sector_num; ! 619: int ret, n, n1; ! 620: ! 621: s->status = READY_STAT | SEEK_STAT; ! 622: sector_num = ide_get_sector(s); ! 623: #if defined(DEBUG_IDE) ! 624: printf("write sector=%" PRId64 "\n", sector_num); ! 625: #endif ! 626: n = s->nsector; ! 627: if (n > s->req_nb_sectors) ! 628: n = s->req_nb_sectors; ! 629: ret = bdrv_write(s->bs, sector_num, s->io_buffer, n); ! 630: ! 631: if (ret != 0) { ! 632: if (ide_handle_rw_error(s, -ret, BM_STATUS_PIO_RETRY)) ! 633: return; ! 634: } ! 635: ! 636: s->nsector -= n; ! 637: if (s->nsector == 0) { ! 638: /* no more sectors to write */ ! 639: ide_transfer_stop(s); ! 640: } else { ! 641: n1 = s->nsector; ! 642: if (n1 > s->req_nb_sectors) ! 643: n1 = s->req_nb_sectors; ! 644: ide_transfer_start(s, s->io_buffer, 512 * n1, ide_sector_write); ! 645: } ! 646: ide_set_sector(s, sector_num + n); ! 647: ! 648: #ifdef TARGET_I386 ! 649: if (win2k_install_hack && ((++s->irq_count % 16) == 0)) { ! 650: /* It seems there is a bug in the Windows 2000 installer HDD ! 651: IDE driver which fills the disk with empty logs when the ! 652: IDE write IRQ comes too early. This hack tries to correct ! 653: that at the expense of slower write performances. Use this ! 654: option _only_ to install Windows 2000. You must disable it ! 655: for normal use. */ ! 656: qemu_mod_timer(s->sector_write_timer, ! 657: qemu_get_clock(vm_clock) + (get_ticks_per_sec() / 1000)); ! 658: } else ! 659: #endif ! 660: { ! 661: ide_set_irq(s->bus); ! 662: } ! 663: } ! 664: ! 665: static void ide_dma_restart_bh(void *opaque) ! 666: { ! 667: BMDMAState *bm = opaque; ! 668: int is_read; ! 669: ! 670: qemu_bh_delete(bm->bh); ! 671: bm->bh = NULL; ! 672: ! 673: is_read = !!(bm->status & BM_STATUS_RETRY_READ); ! 674: ! 675: if (bm->status & BM_STATUS_DMA_RETRY) { ! 676: bm->status &= ~(BM_STATUS_DMA_RETRY | BM_STATUS_RETRY_READ); ! 677: ide_dma_restart(bmdma_active_if(bm), is_read); ! 678: } else if (bm->status & BM_STATUS_PIO_RETRY) { ! 679: bm->status &= ~(BM_STATUS_PIO_RETRY | BM_STATUS_RETRY_READ); ! 680: if (is_read) { ! 681: ide_sector_read(bmdma_active_if(bm)); ! 682: } else { ! 683: ide_sector_write(bmdma_active_if(bm)); ! 684: } ! 685: } ! 686: } ! 687: ! 688: void ide_dma_restart_cb(void *opaque, int running, int reason) ! 689: { ! 690: BMDMAState *bm = opaque; ! 691: ! 692: if (!running) ! 693: return; ! 694: ! 695: if (!bm->bh) { ! 696: bm->bh = qemu_bh_new(ide_dma_restart_bh, bm); ! 697: qemu_bh_schedule(bm->bh); ! 698: } ! 699: } ! 700: ! 701: static void ide_write_dma_cb(void *opaque, int ret) ! 702: { ! 703: BMDMAState *bm = opaque; ! 704: IDEState *s = bmdma_active_if(bm); ! 705: int n; ! 706: int64_t sector_num; ! 707: ! 708: if (ret < 0) { ! 709: if (ide_handle_rw_error(s, -ret, BM_STATUS_DMA_RETRY)) ! 710: return; ! 711: } ! 712: ! 713: n = s->io_buffer_size >> 9; ! 714: sector_num = ide_get_sector(s); ! 715: if (n > 0) { ! 716: dma_buf_commit(s, 0); ! 717: sector_num += n; ! 718: ide_set_sector(s, sector_num); ! 719: s->nsector -= n; ! 720: } ! 721: ! 722: /* end of transfer ? */ ! 723: if (s->nsector == 0) { ! 724: s->status = READY_STAT | SEEK_STAT; ! 725: ide_set_irq(s->bus); ! 726: eot: ! 727: bm->status &= ~BM_STATUS_DMAING; ! 728: bm->status |= BM_STATUS_INT; ! 729: bm->dma_cb = NULL; ! 730: bm->unit = -1; ! 731: bm->aiocb = NULL; ! 732: return; ! 733: } ! 734: ! 735: n = s->nsector; ! 736: s->io_buffer_size = n * 512; ! 737: /* launch next transfer */ ! 738: if (dma_buf_prepare(bm, 0) == 0) ! 739: goto eot; ! 740: #ifdef DEBUG_AIO ! 741: printf("aio_write: sector_num=%" PRId64 " n=%d\n", sector_num, n); ! 742: #endif ! 743: bm->aiocb = dma_bdrv_write(s->bs, &s->sg, sector_num, ide_write_dma_cb, bm); ! 744: ide_dma_submit_check(s, ide_write_dma_cb, bm); ! 745: } ! 746: ! 747: static void ide_sector_write_dma(IDEState *s) ! 748: { ! 749: s->status = READY_STAT | SEEK_STAT | DRQ_STAT | BUSY_STAT; ! 750: s->io_buffer_index = 0; ! 751: s->io_buffer_size = 0; ! 752: s->is_read = 0; ! 753: ide_dma_start(s, ide_write_dma_cb); ! 754: } ! 755: ! 756: void ide_atapi_cmd_ok(IDEState *s) ! 757: { ! 758: s->error = 0; ! 759: s->status = READY_STAT | SEEK_STAT; ! 760: s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD; ! 761: ide_set_irq(s->bus); ! 762: } ! 763: ! 764: void ide_atapi_cmd_error(IDEState *s, int sense_key, int asc) ! 765: { ! 766: #ifdef DEBUG_IDE_ATAPI ! 767: printf("atapi_cmd_error: sense=0x%x asc=0x%x\n", sense_key, asc); ! 768: #endif ! 769: s->error = sense_key << 4; ! 770: s->status = READY_STAT | ERR_STAT; ! 771: s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD; ! 772: s->sense_key = sense_key; ! 773: s->asc = asc; ! 774: ide_set_irq(s->bus); ! 775: } ! 776: ! 777: static void ide_atapi_cmd_check_status(IDEState *s) ! 778: { ! 779: #ifdef DEBUG_IDE_ATAPI ! 780: printf("atapi_cmd_check_status\n"); ! 781: #endif ! 782: s->error = MC_ERR | (SENSE_UNIT_ATTENTION << 4); ! 783: s->status = ERR_STAT; ! 784: s->nsector = 0; ! 785: ide_set_irq(s->bus); ! 786: } ! 787: ! 788: static void ide_flush_cb(void *opaque, int ret) ! 789: { ! 790: IDEState *s = opaque; ! 791: ! 792: /* XXX: how do we signal I/O errors here? */ ! 793: ! 794: s->status = READY_STAT | SEEK_STAT; ! 795: ide_set_irq(s->bus); ! 796: } ! 797: ! 798: static inline void cpu_to_ube16(uint8_t *buf, int val) ! 799: { ! 800: buf[0] = val >> 8; ! 801: buf[1] = val & 0xff; ! 802: } ! 803: ! 804: static inline void cpu_to_ube32(uint8_t *buf, unsigned int val) ! 805: { ! 806: buf[0] = val >> 24; ! 807: buf[1] = val >> 16; ! 808: buf[2] = val >> 8; ! 809: buf[3] = val & 0xff; ! 810: } ! 811: ! 812: static inline int ube16_to_cpu(const uint8_t *buf) ! 813: { ! 814: return (buf[0] << 8) | buf[1]; ! 815: } ! 816: ! 817: static inline int ube32_to_cpu(const uint8_t *buf) ! 818: { ! 819: return (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3]; ! 820: } ! 821: ! 822: static void lba_to_msf(uint8_t *buf, int lba) ! 823: { ! 824: lba += 150; ! 825: buf[0] = (lba / 75) / 60; ! 826: buf[1] = (lba / 75) % 60; ! 827: buf[2] = lba % 75; ! 828: } ! 829: ! 830: static void cd_data_to_raw(uint8_t *buf, int lba) ! 831: { ! 832: /* sync bytes */ ! 833: buf[0] = 0x00; ! 834: memset(buf + 1, 0xff, 10); ! 835: buf[11] = 0x00; ! 836: buf += 12; ! 837: /* MSF */ ! 838: lba_to_msf(buf, lba); ! 839: buf[3] = 0x01; /* mode 1 data */ ! 840: buf += 4; ! 841: /* data */ ! 842: buf += 2048; ! 843: /* XXX: ECC not computed */ ! 844: memset(buf, 0, 288); ! 845: } ! 846: ! 847: static int cd_read_sector(BlockDriverState *bs, int lba, uint8_t *buf, ! 848: int sector_size) ! 849: { ! 850: int ret; ! 851: ! 852: switch(sector_size) { ! 853: case 2048: ! 854: ret = bdrv_read(bs, (int64_t)lba << 2, buf, 4); ! 855: break; ! 856: case 2352: ! 857: ret = bdrv_read(bs, (int64_t)lba << 2, buf + 16, 4); ! 858: if (ret < 0) ! 859: return ret; ! 860: cd_data_to_raw(buf, lba); ! 861: break; ! 862: default: ! 863: ret = -EIO; ! 864: break; ! 865: } ! 866: return ret; ! 867: } ! 868: ! 869: void ide_atapi_io_error(IDEState *s, int ret) ! 870: { ! 871: /* XXX: handle more errors */ ! 872: if (ret == -ENOMEDIUM) { ! 873: ide_atapi_cmd_error(s, SENSE_NOT_READY, ! 874: ASC_MEDIUM_NOT_PRESENT); ! 875: } else { ! 876: ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, ! 877: ASC_LOGICAL_BLOCK_OOR); ! 878: } ! 879: } ! 880: ! 881: /* The whole ATAPI transfer logic is handled in this function */ ! 882: static void ide_atapi_cmd_reply_end(IDEState *s) ! 883: { ! 884: int byte_count_limit, size, ret; ! 885: #ifdef DEBUG_IDE_ATAPI ! 886: printf("reply: tx_size=%d elem_tx_size=%d index=%d\n", ! 887: s->packet_transfer_size, ! 888: s->elementary_transfer_size, ! 889: s->io_buffer_index); ! 890: #endif ! 891: if (s->packet_transfer_size <= 0) { ! 892: /* end of transfer */ ! 893: ide_transfer_stop(s); ! 894: s->status = READY_STAT | SEEK_STAT; ! 895: s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD; ! 896: ide_set_irq(s->bus); ! 897: #ifdef DEBUG_IDE_ATAPI ! 898: printf("status=0x%x\n", s->status); ! 899: #endif ! 900: } else { ! 901: /* see if a new sector must be read */ ! 902: if (s->lba != -1 && s->io_buffer_index >= s->cd_sector_size) { ! 903: ret = cd_read_sector(s->bs, s->lba, s->io_buffer, s->cd_sector_size); ! 904: if (ret < 0) { ! 905: ide_transfer_stop(s); ! 906: ide_atapi_io_error(s, ret); ! 907: return; ! 908: } ! 909: s->lba++; ! 910: s->io_buffer_index = 0; ! 911: } ! 912: if (s->elementary_transfer_size > 0) { ! 913: /* there are some data left to transmit in this elementary ! 914: transfer */ ! 915: size = s->cd_sector_size - s->io_buffer_index; ! 916: if (size > s->elementary_transfer_size) ! 917: size = s->elementary_transfer_size; ! 918: ide_transfer_start(s, s->io_buffer + s->io_buffer_index, ! 919: size, ide_atapi_cmd_reply_end); ! 920: s->packet_transfer_size -= size; ! 921: s->elementary_transfer_size -= size; ! 922: s->io_buffer_index += size; ! 923: } else { ! 924: /* a new transfer is needed */ ! 925: s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO; ! 926: byte_count_limit = s->lcyl | (s->hcyl << 8); ! 927: #ifdef DEBUG_IDE_ATAPI ! 928: printf("byte_count_limit=%d\n", byte_count_limit); ! 929: #endif ! 930: if (byte_count_limit == 0xffff) ! 931: byte_count_limit--; ! 932: size = s->packet_transfer_size; ! 933: if (size > byte_count_limit) { ! 934: /* byte count limit must be even if this case */ ! 935: if (byte_count_limit & 1) ! 936: byte_count_limit--; ! 937: size = byte_count_limit; ! 938: } ! 939: s->lcyl = size; ! 940: s->hcyl = size >> 8; ! 941: s->elementary_transfer_size = size; ! 942: /* we cannot transmit more than one sector at a time */ ! 943: if (s->lba != -1) { ! 944: if (size > (s->cd_sector_size - s->io_buffer_index)) ! 945: size = (s->cd_sector_size - s->io_buffer_index); ! 946: } ! 947: ide_transfer_start(s, s->io_buffer + s->io_buffer_index, ! 948: size, ide_atapi_cmd_reply_end); ! 949: s->packet_transfer_size -= size; ! 950: s->elementary_transfer_size -= size; ! 951: s->io_buffer_index += size; ! 952: ide_set_irq(s->bus); ! 953: #ifdef DEBUG_IDE_ATAPI ! 954: printf("status=0x%x\n", s->status); ! 955: #endif ! 956: } ! 957: } ! 958: } ! 959: ! 960: /* send a reply of 'size' bytes in s->io_buffer to an ATAPI command */ ! 961: static void ide_atapi_cmd_reply(IDEState *s, int size, int max_size) ! 962: { ! 963: if (size > max_size) ! 964: size = max_size; ! 965: s->lba = -1; /* no sector read */ ! 966: s->packet_transfer_size = size; ! 967: s->io_buffer_size = size; /* dma: send the reply data as one chunk */ ! 968: s->elementary_transfer_size = 0; ! 969: s->io_buffer_index = 0; ! 970: ! 971: if (s->atapi_dma) { ! 972: s->status = READY_STAT | SEEK_STAT | DRQ_STAT; ! 973: ide_dma_start(s, ide_atapi_cmd_read_dma_cb); ! 974: } else { ! 975: s->status = READY_STAT | SEEK_STAT; ! 976: ide_atapi_cmd_reply_end(s); ! 977: } ! 978: } ! 979: ! 980: /* start a CD-CDROM read command */ ! 981: static void ide_atapi_cmd_read_pio(IDEState *s, int lba, int nb_sectors, ! 982: int sector_size) ! 983: { ! 984: s->lba = lba; ! 985: s->packet_transfer_size = nb_sectors * sector_size; ! 986: s->elementary_transfer_size = 0; ! 987: s->io_buffer_index = sector_size; ! 988: s->cd_sector_size = sector_size; ! 989: ! 990: s->status = READY_STAT | SEEK_STAT; ! 991: ide_atapi_cmd_reply_end(s); ! 992: } ! 993: ! 994: /* ATAPI DMA support */ ! 995: ! 996: /* XXX: handle read errors */ ! 997: static void ide_atapi_cmd_read_dma_cb(void *opaque, int ret) ! 998: { ! 999: BMDMAState *bm = opaque; ! 1000: IDEState *s = bmdma_active_if(bm); ! 1001: int data_offset, n; ! 1002: ! 1003: if (ret < 0) { ! 1004: ide_atapi_io_error(s, ret); ! 1005: goto eot; ! 1006: } ! 1007: ! 1008: if (s->io_buffer_size > 0) { ! 1009: /* ! 1010: * For a cdrom read sector command (s->lba != -1), ! 1011: * adjust the lba for the next s->io_buffer_size chunk ! 1012: * and dma the current chunk. ! 1013: * For a command != read (s->lba == -1), just transfer ! 1014: * the reply data. ! 1015: */ ! 1016: if (s->lba != -1) { ! 1017: if (s->cd_sector_size == 2352) { ! 1018: n = 1; ! 1019: cd_data_to_raw(s->io_buffer, s->lba); ! 1020: } else { ! 1021: n = s->io_buffer_size >> 11; ! 1022: } ! 1023: s->lba += n; ! 1024: } ! 1025: s->packet_transfer_size -= s->io_buffer_size; ! 1026: if (dma_buf_rw(bm, 1) == 0) ! 1027: goto eot; ! 1028: } ! 1029: ! 1030: if (s->packet_transfer_size <= 0) { ! 1031: s->status = READY_STAT | SEEK_STAT; ! 1032: s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD; ! 1033: ide_set_irq(s->bus); ! 1034: eot: ! 1035: bm->status &= ~BM_STATUS_DMAING; ! 1036: bm->status |= BM_STATUS_INT; ! 1037: bm->dma_cb = NULL; ! 1038: bm->unit = -1; ! 1039: bm->aiocb = NULL; ! 1040: return; ! 1041: } ! 1042: ! 1043: s->io_buffer_index = 0; ! 1044: if (s->cd_sector_size == 2352) { ! 1045: n = 1; ! 1046: s->io_buffer_size = s->cd_sector_size; ! 1047: data_offset = 16; ! 1048: } else { ! 1049: n = s->packet_transfer_size >> 11; ! 1050: if (n > (IDE_DMA_BUF_SECTORS / 4)) ! 1051: n = (IDE_DMA_BUF_SECTORS / 4); ! 1052: s->io_buffer_size = n * 2048; ! 1053: data_offset = 0; ! 1054: } ! 1055: #ifdef DEBUG_AIO ! 1056: printf("aio_read_cd: lba=%u n=%d\n", s->lba, n); ! 1057: #endif ! 1058: bm->iov.iov_base = (void *)(s->io_buffer + data_offset); ! 1059: bm->iov.iov_len = n * 4 * 512; ! 1060: qemu_iovec_init_external(&bm->qiov, &bm->iov, 1); ! 1061: bm->aiocb = bdrv_aio_readv(s->bs, (int64_t)s->lba << 2, &bm->qiov, ! 1062: n * 4, ide_atapi_cmd_read_dma_cb, bm); ! 1063: if (!bm->aiocb) { ! 1064: /* Note: media not present is the most likely case */ ! 1065: ide_atapi_cmd_error(s, SENSE_NOT_READY, ! 1066: ASC_MEDIUM_NOT_PRESENT); ! 1067: goto eot; ! 1068: } ! 1069: } ! 1070: ! 1071: /* start a CD-CDROM read command with DMA */ ! 1072: /* XXX: test if DMA is available */ ! 1073: static void ide_atapi_cmd_read_dma(IDEState *s, int lba, int nb_sectors, ! 1074: int sector_size) ! 1075: { ! 1076: s->lba = lba; ! 1077: s->packet_transfer_size = nb_sectors * sector_size; ! 1078: s->io_buffer_index = 0; ! 1079: s->io_buffer_size = 0; ! 1080: s->cd_sector_size = sector_size; ! 1081: ! 1082: /* XXX: check if BUSY_STAT should be set */ ! 1083: s->status = READY_STAT | SEEK_STAT | DRQ_STAT | BUSY_STAT; ! 1084: ide_dma_start(s, ide_atapi_cmd_read_dma_cb); ! 1085: } ! 1086: ! 1087: static void ide_atapi_cmd_read(IDEState *s, int lba, int nb_sectors, ! 1088: int sector_size) ! 1089: { ! 1090: #ifdef DEBUG_IDE_ATAPI ! 1091: printf("read %s: LBA=%d nb_sectors=%d\n", s->atapi_dma ? "dma" : "pio", ! 1092: lba, nb_sectors); ! 1093: #endif ! 1094: if (s->atapi_dma) { ! 1095: ide_atapi_cmd_read_dma(s, lba, nb_sectors, sector_size); ! 1096: } else { ! 1097: ide_atapi_cmd_read_pio(s, lba, nb_sectors, sector_size); ! 1098: } ! 1099: } ! 1100: ! 1101: static inline uint8_t ide_atapi_set_profile(uint8_t *buf, uint8_t *index, ! 1102: uint16_t profile) ! 1103: { ! 1104: uint8_t *buf_profile = buf + 12; /* start of profiles */ ! 1105: ! 1106: buf_profile += ((*index) * 4); /* start of indexed profile */ ! 1107: cpu_to_ube16 (buf_profile, profile); ! 1108: buf_profile[2] = ((buf_profile[0] == buf[6]) && (buf_profile[1] == buf[7])); ! 1109: ! 1110: /* each profile adds 4 bytes to the response */ ! 1111: (*index)++; ! 1112: buf[11] += 4; /* Additional Length */ ! 1113: ! 1114: return 4; ! 1115: } ! 1116: ! 1117: static int ide_dvd_read_structure(IDEState *s, int format, ! 1118: const uint8_t *packet, uint8_t *buf) ! 1119: { ! 1120: switch (format) { ! 1121: case 0x0: /* Physical format information */ ! 1122: { ! 1123: int layer = packet[6]; ! 1124: uint64_t total_sectors; ! 1125: ! 1126: if (layer != 0) ! 1127: return -ASC_INV_FIELD_IN_CMD_PACKET; ! 1128: ! 1129: bdrv_get_geometry(s->bs, &total_sectors); ! 1130: total_sectors >>= 2; ! 1131: if (total_sectors == 0) ! 1132: return -ASC_MEDIUM_NOT_PRESENT; ! 1133: ! 1134: buf[4] = 1; /* DVD-ROM, part version 1 */ ! 1135: buf[5] = 0xf; /* 120mm disc, minimum rate unspecified */ ! 1136: buf[6] = 1; /* one layer, read-only (per MMC-2 spec) */ ! 1137: buf[7] = 0; /* default densities */ ! 1138: ! 1139: /* FIXME: 0x30000 per spec? */ ! 1140: cpu_to_ube32(buf + 8, 0); /* start sector */ ! 1141: cpu_to_ube32(buf + 12, total_sectors - 1); /* end sector */ ! 1142: cpu_to_ube32(buf + 16, total_sectors - 1); /* l0 end sector */ ! 1143: ! 1144: /* Size of buffer, not including 2 byte size field */ ! 1145: cpu_to_be16wu((uint16_t *)buf, 2048 + 2); ! 1146: ! 1147: /* 2k data + 4 byte header */ ! 1148: return (2048 + 4); ! 1149: } ! 1150: ! 1151: case 0x01: /* DVD copyright information */ ! 1152: buf[4] = 0; /* no copyright data */ ! 1153: buf[5] = 0; /* no region restrictions */ ! 1154: ! 1155: /* Size of buffer, not including 2 byte size field */ ! 1156: cpu_to_be16wu((uint16_t *)buf, 4 + 2); ! 1157: ! 1158: /* 4 byte header + 4 byte data */ ! 1159: return (4 + 4); ! 1160: ! 1161: case 0x03: /* BCA information - invalid field for no BCA info */ ! 1162: return -ASC_INV_FIELD_IN_CMD_PACKET; ! 1163: ! 1164: case 0x04: /* DVD disc manufacturing information */ ! 1165: /* Size of buffer, not including 2 byte size field */ ! 1166: cpu_to_be16wu((uint16_t *)buf, 2048 + 2); ! 1167: ! 1168: /* 2k data + 4 byte header */ ! 1169: return (2048 + 4); ! 1170: ! 1171: case 0xff: ! 1172: /* ! 1173: * This lists all the command capabilities above. Add new ones ! 1174: * in order and update the length and buffer return values. ! 1175: */ ! 1176: ! 1177: buf[4] = 0x00; /* Physical format */ ! 1178: buf[5] = 0x40; /* Not writable, is readable */ ! 1179: cpu_to_be16wu((uint16_t *)(buf + 6), 2048 + 4); ! 1180: ! 1181: buf[8] = 0x01; /* Copyright info */ ! 1182: buf[9] = 0x40; /* Not writable, is readable */ ! 1183: cpu_to_be16wu((uint16_t *)(buf + 10), 4 + 4); ! 1184: ! 1185: buf[12] = 0x03; /* BCA info */ ! 1186: buf[13] = 0x40; /* Not writable, is readable */ ! 1187: cpu_to_be16wu((uint16_t *)(buf + 14), 188 + 4); ! 1188: ! 1189: buf[16] = 0x04; /* Manufacturing info */ ! 1190: buf[17] = 0x40; /* Not writable, is readable */ ! 1191: cpu_to_be16wu((uint16_t *)(buf + 18), 2048 + 4); ! 1192: ! 1193: /* Size of buffer, not including 2 byte size field */ ! 1194: cpu_to_be16wu((uint16_t *)buf, 16 + 2); ! 1195: ! 1196: /* data written + 4 byte header */ ! 1197: return (16 + 4); ! 1198: ! 1199: default: /* TODO: formats beyond DVD-ROM requires */ ! 1200: return -ASC_INV_FIELD_IN_CMD_PACKET; ! 1201: } ! 1202: } ! 1203: ! 1204: static void ide_atapi_cmd(IDEState *s) ! 1205: { ! 1206: const uint8_t *packet; ! 1207: uint8_t *buf; ! 1208: int max_len; ! 1209: ! 1210: packet = s->io_buffer; ! 1211: buf = s->io_buffer; ! 1212: #ifdef DEBUG_IDE_ATAPI ! 1213: { ! 1214: int i; ! 1215: printf("ATAPI limit=0x%x packet:", s->lcyl | (s->hcyl << 8)); ! 1216: for(i = 0; i < ATAPI_PACKET_SIZE; i++) { ! 1217: printf(" %02x", packet[i]); ! 1218: } ! 1219: printf("\n"); ! 1220: } ! 1221: #endif ! 1222: /* If there's a UNIT_ATTENTION condition pending, only ! 1223: REQUEST_SENSE and INQUIRY commands are allowed to complete. */ ! 1224: if (s->sense_key == SENSE_UNIT_ATTENTION && ! 1225: s->io_buffer[0] != GPCMD_REQUEST_SENSE && ! 1226: s->io_buffer[0] != GPCMD_INQUIRY) { ! 1227: ide_atapi_cmd_check_status(s); ! 1228: return; ! 1229: } ! 1230: switch(s->io_buffer[0]) { ! 1231: case GPCMD_TEST_UNIT_READY: ! 1232: if (bdrv_is_inserted(s->bs) && !s->cdrom_changed) { ! 1233: ide_atapi_cmd_ok(s); ! 1234: } else { ! 1235: s->cdrom_changed = 0; ! 1236: ide_atapi_cmd_error(s, SENSE_NOT_READY, ! 1237: ASC_MEDIUM_NOT_PRESENT); ! 1238: } ! 1239: break; ! 1240: case GPCMD_MODE_SENSE_6: ! 1241: case GPCMD_MODE_SENSE_10: ! 1242: { ! 1243: int action, code; ! 1244: if (packet[0] == GPCMD_MODE_SENSE_10) ! 1245: max_len = ube16_to_cpu(packet + 7); ! 1246: else ! 1247: max_len = packet[4]; ! 1248: action = packet[2] >> 6; ! 1249: code = packet[2] & 0x3f; ! 1250: switch(action) { ! 1251: case 0: /* current values */ ! 1252: switch(code) { ! 1253: case GPMODE_R_W_ERROR_PAGE: /* error recovery */ ! 1254: cpu_to_ube16(&buf[0], 16 + 6); ! 1255: buf[2] = 0x70; ! 1256: buf[3] = 0; ! 1257: buf[4] = 0; ! 1258: buf[5] = 0; ! 1259: buf[6] = 0; ! 1260: buf[7] = 0; ! 1261: ! 1262: buf[8] = 0x01; ! 1263: buf[9] = 0x06; ! 1264: buf[10] = 0x00; ! 1265: buf[11] = 0x05; ! 1266: buf[12] = 0x00; ! 1267: buf[13] = 0x00; ! 1268: buf[14] = 0x00; ! 1269: buf[15] = 0x00; ! 1270: ide_atapi_cmd_reply(s, 16, max_len); ! 1271: break; ! 1272: case GPMODE_AUDIO_CTL_PAGE: ! 1273: cpu_to_ube16(&buf[0], 24 + 6); ! 1274: buf[2] = 0x70; ! 1275: buf[3] = 0; ! 1276: buf[4] = 0; ! 1277: buf[5] = 0; ! 1278: buf[6] = 0; ! 1279: buf[7] = 0; ! 1280: ! 1281: /* Fill with CDROM audio volume */ ! 1282: buf[17] = 0; ! 1283: buf[19] = 0; ! 1284: buf[21] = 0; ! 1285: buf[23] = 0; ! 1286: ! 1287: ide_atapi_cmd_reply(s, 24, max_len); ! 1288: break; ! 1289: case GPMODE_CAPABILITIES_PAGE: ! 1290: cpu_to_ube16(&buf[0], 28 + 6); ! 1291: buf[2] = 0x70; ! 1292: buf[3] = 0; ! 1293: buf[4] = 0; ! 1294: buf[5] = 0; ! 1295: buf[6] = 0; ! 1296: buf[7] = 0; ! 1297: ! 1298: buf[8] = 0x2a; ! 1299: buf[9] = 0x12; ! 1300: buf[10] = 0x00; ! 1301: buf[11] = 0x00; ! 1302: ! 1303: /* Claim PLAY_AUDIO capability (0x01) since some Linux ! 1304: code checks for this to automount media. */ ! 1305: buf[12] = 0x71; ! 1306: buf[13] = 3 << 5; ! 1307: buf[14] = (1 << 0) | (1 << 3) | (1 << 5); ! 1308: if (bdrv_is_locked(s->bs)) ! 1309: buf[6] |= 1 << 1; ! 1310: buf[15] = 0x00; ! 1311: cpu_to_ube16(&buf[16], 706); ! 1312: buf[18] = 0; ! 1313: buf[19] = 2; ! 1314: cpu_to_ube16(&buf[20], 512); ! 1315: cpu_to_ube16(&buf[22], 706); ! 1316: buf[24] = 0; ! 1317: buf[25] = 0; ! 1318: buf[26] = 0; ! 1319: buf[27] = 0; ! 1320: ide_atapi_cmd_reply(s, 28, max_len); ! 1321: break; ! 1322: default: ! 1323: goto error_cmd; ! 1324: } ! 1325: break; ! 1326: case 1: /* changeable values */ ! 1327: goto error_cmd; ! 1328: case 2: /* default values */ ! 1329: goto error_cmd; ! 1330: default: ! 1331: case 3: /* saved values */ ! 1332: ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, ! 1333: ASC_SAVING_PARAMETERS_NOT_SUPPORTED); ! 1334: break; ! 1335: } ! 1336: } ! 1337: break; ! 1338: case GPCMD_REQUEST_SENSE: ! 1339: max_len = packet[4]; ! 1340: memset(buf, 0, 18); ! 1341: buf[0] = 0x70 | (1 << 7); ! 1342: buf[2] = s->sense_key; ! 1343: buf[7] = 10; ! 1344: buf[12] = s->asc; ! 1345: if (s->sense_key == SENSE_UNIT_ATTENTION) ! 1346: s->sense_key = SENSE_NONE; ! 1347: ide_atapi_cmd_reply(s, 18, max_len); ! 1348: break; ! 1349: case GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL: ! 1350: if (bdrv_is_inserted(s->bs)) { ! 1351: bdrv_set_locked(s->bs, packet[4] & 1); ! 1352: ide_atapi_cmd_ok(s); ! 1353: } else { ! 1354: ide_atapi_cmd_error(s, SENSE_NOT_READY, ! 1355: ASC_MEDIUM_NOT_PRESENT); ! 1356: } ! 1357: break; ! 1358: case GPCMD_READ_10: ! 1359: case GPCMD_READ_12: ! 1360: { ! 1361: int nb_sectors, lba; ! 1362: ! 1363: if (packet[0] == GPCMD_READ_10) ! 1364: nb_sectors = ube16_to_cpu(packet + 7); ! 1365: else ! 1366: nb_sectors = ube32_to_cpu(packet + 6); ! 1367: lba = ube32_to_cpu(packet + 2); ! 1368: if (nb_sectors == 0) { ! 1369: ide_atapi_cmd_ok(s); ! 1370: break; ! 1371: } ! 1372: ide_atapi_cmd_read(s, lba, nb_sectors, 2048); ! 1373: } ! 1374: break; ! 1375: case GPCMD_READ_CD: ! 1376: { ! 1377: int nb_sectors, lba, transfer_request; ! 1378: ! 1379: nb_sectors = (packet[6] << 16) | (packet[7] << 8) | packet[8]; ! 1380: lba = ube32_to_cpu(packet + 2); ! 1381: if (nb_sectors == 0) { ! 1382: ide_atapi_cmd_ok(s); ! 1383: break; ! 1384: } ! 1385: transfer_request = packet[9]; ! 1386: switch(transfer_request & 0xf8) { ! 1387: case 0x00: ! 1388: /* nothing */ ! 1389: ide_atapi_cmd_ok(s); ! 1390: break; ! 1391: case 0x10: ! 1392: /* normal read */ ! 1393: ide_atapi_cmd_read(s, lba, nb_sectors, 2048); ! 1394: break; ! 1395: case 0xf8: ! 1396: /* read all data */ ! 1397: ide_atapi_cmd_read(s, lba, nb_sectors, 2352); ! 1398: break; ! 1399: default: ! 1400: ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, ! 1401: ASC_INV_FIELD_IN_CMD_PACKET); ! 1402: break; ! 1403: } ! 1404: } ! 1405: break; ! 1406: case GPCMD_SEEK: ! 1407: { ! 1408: unsigned int lba; ! 1409: uint64_t total_sectors; ! 1410: ! 1411: bdrv_get_geometry(s->bs, &total_sectors); ! 1412: total_sectors >>= 2; ! 1413: if (total_sectors == 0) { ! 1414: ide_atapi_cmd_error(s, SENSE_NOT_READY, ! 1415: ASC_MEDIUM_NOT_PRESENT); ! 1416: break; ! 1417: } ! 1418: lba = ube32_to_cpu(packet + 2); ! 1419: if (lba >= total_sectors) { ! 1420: ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, ! 1421: ASC_LOGICAL_BLOCK_OOR); ! 1422: break; ! 1423: } ! 1424: ide_atapi_cmd_ok(s); ! 1425: } ! 1426: break; ! 1427: case GPCMD_START_STOP_UNIT: ! 1428: { ! 1429: int start, eject, err = 0; ! 1430: start = packet[4] & 1; ! 1431: eject = (packet[4] >> 1) & 1; ! 1432: ! 1433: if (eject) { ! 1434: err = bdrv_eject(s->bs, !start); ! 1435: } ! 1436: ! 1437: switch (err) { ! 1438: case 0: ! 1439: ide_atapi_cmd_ok(s); ! 1440: break; ! 1441: case -EBUSY: ! 1442: ide_atapi_cmd_error(s, SENSE_NOT_READY, ! 1443: ASC_MEDIA_REMOVAL_PREVENTED); ! 1444: break; ! 1445: default: ! 1446: ide_atapi_cmd_error(s, SENSE_NOT_READY, ! 1447: ASC_MEDIUM_NOT_PRESENT); ! 1448: break; ! 1449: } ! 1450: } ! 1451: break; ! 1452: case GPCMD_MECHANISM_STATUS: ! 1453: { ! 1454: max_len = ube16_to_cpu(packet + 8); ! 1455: cpu_to_ube16(buf, 0); ! 1456: /* no current LBA */ ! 1457: buf[2] = 0; ! 1458: buf[3] = 0; ! 1459: buf[4] = 0; ! 1460: buf[5] = 1; ! 1461: cpu_to_ube16(buf + 6, 0); ! 1462: ide_atapi_cmd_reply(s, 8, max_len); ! 1463: } ! 1464: break; ! 1465: case GPCMD_READ_TOC_PMA_ATIP: ! 1466: { ! 1467: int format, msf, start_track, len; ! 1468: uint64_t total_sectors; ! 1469: ! 1470: bdrv_get_geometry(s->bs, &total_sectors); ! 1471: total_sectors >>= 2; ! 1472: if (total_sectors == 0) { ! 1473: ide_atapi_cmd_error(s, SENSE_NOT_READY, ! 1474: ASC_MEDIUM_NOT_PRESENT); ! 1475: break; ! 1476: } ! 1477: max_len = ube16_to_cpu(packet + 7); ! 1478: format = packet[9] >> 6; ! 1479: msf = (packet[1] >> 1) & 1; ! 1480: start_track = packet[6]; ! 1481: switch(format) { ! 1482: case 0: ! 1483: len = cdrom_read_toc(total_sectors, buf, msf, start_track); ! 1484: if (len < 0) ! 1485: goto error_cmd; ! 1486: ide_atapi_cmd_reply(s, len, max_len); ! 1487: break; ! 1488: case 1: ! 1489: /* multi session : only a single session defined */ ! 1490: memset(buf, 0, 12); ! 1491: buf[1] = 0x0a; ! 1492: buf[2] = 0x01; ! 1493: buf[3] = 0x01; ! 1494: ide_atapi_cmd_reply(s, 12, max_len); ! 1495: break; ! 1496: case 2: ! 1497: len = cdrom_read_toc_raw(total_sectors, buf, msf, start_track); ! 1498: if (len < 0) ! 1499: goto error_cmd; ! 1500: ide_atapi_cmd_reply(s, len, max_len); ! 1501: break; ! 1502: default: ! 1503: error_cmd: ! 1504: ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, ! 1505: ASC_INV_FIELD_IN_CMD_PACKET); ! 1506: break; ! 1507: } ! 1508: } ! 1509: break; ! 1510: case GPCMD_READ_CDVD_CAPACITY: ! 1511: { ! 1512: uint64_t total_sectors; ! 1513: ! 1514: bdrv_get_geometry(s->bs, &total_sectors); ! 1515: total_sectors >>= 2; ! 1516: if (total_sectors == 0) { ! 1517: ide_atapi_cmd_error(s, SENSE_NOT_READY, ! 1518: ASC_MEDIUM_NOT_PRESENT); ! 1519: break; ! 1520: } ! 1521: /* NOTE: it is really the number of sectors minus 1 */ ! 1522: cpu_to_ube32(buf, total_sectors - 1); ! 1523: cpu_to_ube32(buf + 4, 2048); ! 1524: ide_atapi_cmd_reply(s, 8, 8); ! 1525: } ! 1526: break; ! 1527: case GPCMD_READ_DVD_STRUCTURE: ! 1528: { ! 1529: int media = packet[1]; ! 1530: int format = packet[7]; ! 1531: int ret; ! 1532: ! 1533: max_len = ube16_to_cpu(packet + 8); ! 1534: ! 1535: if (format < 0xff) { ! 1536: if (media_is_cd(s)) { ! 1537: ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, ! 1538: ASC_INCOMPATIBLE_FORMAT); ! 1539: break; ! 1540: } else if (!media_present(s)) { ! 1541: ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, ! 1542: ASC_INV_FIELD_IN_CMD_PACKET); ! 1543: break; ! 1544: } ! 1545: } ! 1546: ! 1547: memset(buf, 0, max_len > IDE_DMA_BUF_SECTORS * 512 + 4 ? ! 1548: IDE_DMA_BUF_SECTORS * 512 + 4 : max_len); ! 1549: ! 1550: switch (format) { ! 1551: case 0x00 ... 0x7f: ! 1552: case 0xff: ! 1553: if (media == 0) { ! 1554: ret = ide_dvd_read_structure(s, format, packet, buf); ! 1555: ! 1556: if (ret < 0) ! 1557: ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, -ret); ! 1558: else ! 1559: ide_atapi_cmd_reply(s, ret, max_len); ! 1560: ! 1561: break; ! 1562: } ! 1563: /* TODO: BD support, fall through for now */ ! 1564: ! 1565: /* Generic disk structures */ ! 1566: case 0x80: /* TODO: AACS volume identifier */ ! 1567: case 0x81: /* TODO: AACS media serial number */ ! 1568: case 0x82: /* TODO: AACS media identifier */ ! 1569: case 0x83: /* TODO: AACS media key block */ ! 1570: case 0x90: /* TODO: List of recognized format layers */ ! 1571: case 0xc0: /* TODO: Write protection status */ ! 1572: default: ! 1573: ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, ! 1574: ASC_INV_FIELD_IN_CMD_PACKET); ! 1575: break; ! 1576: } ! 1577: } ! 1578: break; ! 1579: case GPCMD_SET_SPEED: ! 1580: ide_atapi_cmd_ok(s); ! 1581: break; ! 1582: case GPCMD_INQUIRY: ! 1583: max_len = packet[4]; ! 1584: buf[0] = 0x05; /* CD-ROM */ ! 1585: buf[1] = 0x80; /* removable */ ! 1586: buf[2] = 0x00; /* ISO */ ! 1587: buf[3] = 0x21; /* ATAPI-2 (XXX: put ATAPI-4 ?) */ ! 1588: buf[4] = 31; /* additional length */ ! 1589: buf[5] = 0; /* reserved */ ! 1590: buf[6] = 0; /* reserved */ ! 1591: buf[7] = 0; /* reserved */ ! 1592: padstr8(buf + 8, 8, "QEMU"); ! 1593: padstr8(buf + 16, 16, "QEMU DVD-ROM"); ! 1594: padstr8(buf + 32, 4, QEMU_VERSION); ! 1595: ide_atapi_cmd_reply(s, 36, max_len); ! 1596: break; ! 1597: case GPCMD_GET_CONFIGURATION: ! 1598: { ! 1599: uint32_t len; ! 1600: uint8_t index = 0; ! 1601: ! 1602: /* only feature 0 is supported */ ! 1603: if (packet[2] != 0 || packet[3] != 0) { ! 1604: ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, ! 1605: ASC_INV_FIELD_IN_CMD_PACKET); ! 1606: break; ! 1607: } ! 1608: ! 1609: /* XXX: could result in alignment problems in some architectures */ ! 1610: max_len = ube16_to_cpu(packet + 7); ! 1611: ! 1612: /* ! 1613: * XXX: avoid overflow for io_buffer if max_len is bigger than ! 1614: * the size of that buffer (dimensioned to max number of ! 1615: * sectors to transfer at once) ! 1616: * ! 1617: * Only a problem if the feature/profiles grow. ! 1618: */ ! 1619: if (max_len > 512) /* XXX: assume 1 sector */ ! 1620: max_len = 512; ! 1621: ! 1622: memset(buf, 0, max_len); ! 1623: /* ! 1624: * the number of sectors from the media tells us which profile ! 1625: * to use as current. 0 means there is no media ! 1626: */ ! 1627: if (media_is_dvd(s)) ! 1628: cpu_to_ube16(buf + 6, MMC_PROFILE_DVD_ROM); ! 1629: else if (media_is_cd(s)) ! 1630: cpu_to_ube16(buf + 6, MMC_PROFILE_CD_ROM); ! 1631: ! 1632: buf[10] = 0x02 | 0x01; /* persistent and current */ ! 1633: len = 12; /* headers: 8 + 4 */ ! 1634: len += ide_atapi_set_profile(buf, &index, MMC_PROFILE_DVD_ROM); ! 1635: len += ide_atapi_set_profile(buf, &index, MMC_PROFILE_CD_ROM); ! 1636: cpu_to_ube32(buf, len - 4); /* data length */ ! 1637: ! 1638: ide_atapi_cmd_reply(s, len, max_len); ! 1639: break; ! 1640: } ! 1641: default: ! 1642: ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, ! 1643: ASC_ILLEGAL_OPCODE); ! 1644: break; ! 1645: } ! 1646: } ! 1647: ! 1648: static void ide_cfata_metadata_inquiry(IDEState *s) ! 1649: { ! 1650: uint16_t *p; ! 1651: uint32_t spd; ! 1652: ! 1653: p = (uint16_t *) s->io_buffer; ! 1654: memset(p, 0, 0x200); ! 1655: spd = ((s->mdata_size - 1) >> 9) + 1; ! 1656: ! 1657: put_le16(p + 0, 0x0001); /* Data format revision */ ! 1658: put_le16(p + 1, 0x0000); /* Media property: silicon */ ! 1659: put_le16(p + 2, s->media_changed); /* Media status */ ! 1660: put_le16(p + 3, s->mdata_size & 0xffff); /* Capacity in bytes (low) */ ! 1661: put_le16(p + 4, s->mdata_size >> 16); /* Capacity in bytes (high) */ ! 1662: put_le16(p + 5, spd & 0xffff); /* Sectors per device (low) */ ! 1663: put_le16(p + 6, spd >> 16); /* Sectors per device (high) */ ! 1664: } ! 1665: ! 1666: static void ide_cfata_metadata_read(IDEState *s) ! 1667: { ! 1668: uint16_t *p; ! 1669: ! 1670: if (((s->hcyl << 16) | s->lcyl) << 9 > s->mdata_size + 2) { ! 1671: s->status = ERR_STAT; ! 1672: s->error = ABRT_ERR; ! 1673: return; ! 1674: } ! 1675: ! 1676: p = (uint16_t *) s->io_buffer; ! 1677: memset(p, 0, 0x200); ! 1678: ! 1679: put_le16(p + 0, s->media_changed); /* Media status */ ! 1680: memcpy(p + 1, s->mdata_storage + (((s->hcyl << 16) | s->lcyl) << 9), ! 1681: MIN(MIN(s->mdata_size - (((s->hcyl << 16) | s->lcyl) << 9), ! 1682: s->nsector << 9), 0x200 - 2)); ! 1683: } ! 1684: ! 1685: static void ide_cfata_metadata_write(IDEState *s) ! 1686: { ! 1687: if (((s->hcyl << 16) | s->lcyl) << 9 > s->mdata_size + 2) { ! 1688: s->status = ERR_STAT; ! 1689: s->error = ABRT_ERR; ! 1690: return; ! 1691: } ! 1692: ! 1693: s->media_changed = 0; ! 1694: ! 1695: memcpy(s->mdata_storage + (((s->hcyl << 16) | s->lcyl) << 9), ! 1696: s->io_buffer + 2, ! 1697: MIN(MIN(s->mdata_size - (((s->hcyl << 16) | s->lcyl) << 9), ! 1698: s->nsector << 9), 0x200 - 2)); ! 1699: } ! 1700: ! 1701: /* called when the inserted state of the media has changed */ ! 1702: static void cdrom_change_cb(void *opaque) ! 1703: { ! 1704: IDEState *s = opaque; ! 1705: uint64_t nb_sectors; ! 1706: ! 1707: bdrv_get_geometry(s->bs, &nb_sectors); ! 1708: s->nb_sectors = nb_sectors; ! 1709: ! 1710: s->sense_key = SENSE_UNIT_ATTENTION; ! 1711: s->asc = ASC_MEDIUM_MAY_HAVE_CHANGED; ! 1712: s->cdrom_changed = 1; ! 1713: ide_set_irq(s->bus); ! 1714: } ! 1715: ! 1716: static void ide_cmd_lba48_transform(IDEState *s, int lba48) ! 1717: { ! 1718: s->lba48 = lba48; ! 1719: ! 1720: /* handle the 'magic' 0 nsector count conversion here. to avoid ! 1721: * fiddling with the rest of the read logic, we just store the ! 1722: * full sector count in ->nsector and ignore ->hob_nsector from now ! 1723: */ ! 1724: if (!s->lba48) { ! 1725: if (!s->nsector) ! 1726: s->nsector = 256; ! 1727: } else { ! 1728: if (!s->nsector && !s->hob_nsector) ! 1729: s->nsector = 65536; ! 1730: else { ! 1731: int lo = s->nsector; ! 1732: int hi = s->hob_nsector; ! 1733: ! 1734: s->nsector = (hi << 8) | lo; ! 1735: } ! 1736: } ! 1737: } ! 1738: ! 1739: static void ide_clear_hob(IDEBus *bus) ! 1740: { ! 1741: /* any write clears HOB high bit of device control register */ ! 1742: bus->ifs[0].select &= ~(1 << 7); ! 1743: bus->ifs[1].select &= ~(1 << 7); ! 1744: } ! 1745: ! 1746: void ide_ioport_write(void *opaque, uint32_t addr, uint32_t val) ! 1747: { ! 1748: IDEBus *bus = opaque; ! 1749: IDEState *s; ! 1750: int n; ! 1751: int lba48 = 0; ! 1752: ! 1753: #ifdef DEBUG_IDE ! 1754: printf("IDE: write addr=0x%x val=0x%02x\n", addr, val); ! 1755: #endif ! 1756: ! 1757: addr &= 7; ! 1758: ! 1759: /* ignore writes to command block while busy with previous command */ ! 1760: if (addr != 7 && (idebus_active_if(bus)->status & (BUSY_STAT|DRQ_STAT))) ! 1761: return; ! 1762: ! 1763: switch(addr) { ! 1764: case 0: ! 1765: break; ! 1766: case 1: ! 1767: ide_clear_hob(bus); ! 1768: /* NOTE: data is written to the two drives */ ! 1769: bus->ifs[0].hob_feature = bus->ifs[0].feature; ! 1770: bus->ifs[1].hob_feature = bus->ifs[1].feature; ! 1771: bus->ifs[0].feature = val; ! 1772: bus->ifs[1].feature = val; ! 1773: break; ! 1774: case 2: ! 1775: ide_clear_hob(bus); ! 1776: bus->ifs[0].hob_nsector = bus->ifs[0].nsector; ! 1777: bus->ifs[1].hob_nsector = bus->ifs[1].nsector; ! 1778: bus->ifs[0].nsector = val; ! 1779: bus->ifs[1].nsector = val; ! 1780: break; ! 1781: case 3: ! 1782: ide_clear_hob(bus); ! 1783: bus->ifs[0].hob_sector = bus->ifs[0].sector; ! 1784: bus->ifs[1].hob_sector = bus->ifs[1].sector; ! 1785: bus->ifs[0].sector = val; ! 1786: bus->ifs[1].sector = val; ! 1787: break; ! 1788: case 4: ! 1789: ide_clear_hob(bus); ! 1790: bus->ifs[0].hob_lcyl = bus->ifs[0].lcyl; ! 1791: bus->ifs[1].hob_lcyl = bus->ifs[1].lcyl; ! 1792: bus->ifs[0].lcyl = val; ! 1793: bus->ifs[1].lcyl = val; ! 1794: break; ! 1795: case 5: ! 1796: ide_clear_hob(bus); ! 1797: bus->ifs[0].hob_hcyl = bus->ifs[0].hcyl; ! 1798: bus->ifs[1].hob_hcyl = bus->ifs[1].hcyl; ! 1799: bus->ifs[0].hcyl = val; ! 1800: bus->ifs[1].hcyl = val; ! 1801: break; ! 1802: case 6: ! 1803: /* FIXME: HOB readback uses bit 7 */ ! 1804: bus->ifs[0].select = (val & ~0x10) | 0xa0; ! 1805: bus->ifs[1].select = (val | 0x10) | 0xa0; ! 1806: /* select drive */ ! 1807: bus->unit = (val >> 4) & 1; ! 1808: break; ! 1809: default: ! 1810: case 7: ! 1811: /* command */ ! 1812: #if defined(DEBUG_IDE) ! 1813: printf("ide: CMD=%02x\n", val); ! 1814: #endif ! 1815: s = idebus_active_if(bus); ! 1816: /* ignore commands to non existant slave */ ! 1817: if (s != bus->ifs && !s->bs) ! 1818: break; ! 1819: ! 1820: /* Only DEVICE RESET is allowed while BSY or/and DRQ are set */ ! 1821: if ((s->status & (BUSY_STAT|DRQ_STAT)) && val != WIN_DEVICE_RESET) ! 1822: break; ! 1823: ! 1824: switch(val) { ! 1825: case WIN_IDENTIFY: ! 1826: if (s->bs && !s->is_cdrom) { ! 1827: if (!s->is_cf) ! 1828: ide_identify(s); ! 1829: else ! 1830: ide_cfata_identify(s); ! 1831: s->status = READY_STAT | SEEK_STAT; ! 1832: ide_transfer_start(s, s->io_buffer, 512, ide_transfer_stop); ! 1833: } else { ! 1834: if (s->is_cdrom) { ! 1835: ide_set_signature(s); ! 1836: } ! 1837: ide_abort_command(s); ! 1838: } ! 1839: ide_set_irq(s->bus); ! 1840: break; ! 1841: case WIN_SPECIFY: ! 1842: case WIN_RECAL: ! 1843: s->error = 0; ! 1844: s->status = READY_STAT | SEEK_STAT; ! 1845: ide_set_irq(s->bus); ! 1846: break; ! 1847: case WIN_SETMULT: ! 1848: if (s->is_cf && s->nsector == 0) { ! 1849: /* Disable Read and Write Multiple */ ! 1850: s->mult_sectors = 0; ! 1851: s->status = READY_STAT | SEEK_STAT; ! 1852: } else if ((s->nsector & 0xff) != 0 && ! 1853: ((s->nsector & 0xff) > MAX_MULT_SECTORS || ! 1854: (s->nsector & (s->nsector - 1)) != 0)) { ! 1855: ide_abort_command(s); ! 1856: } else { ! 1857: s->mult_sectors = s->nsector & 0xff; ! 1858: s->status = READY_STAT | SEEK_STAT; ! 1859: } ! 1860: ide_set_irq(s->bus); ! 1861: break; ! 1862: case WIN_VERIFY_EXT: ! 1863: lba48 = 1; ! 1864: case WIN_VERIFY: ! 1865: case WIN_VERIFY_ONCE: ! 1866: /* do sector number check ? */ ! 1867: ide_cmd_lba48_transform(s, lba48); ! 1868: s->status = READY_STAT | SEEK_STAT; ! 1869: ide_set_irq(s->bus); ! 1870: break; ! 1871: case WIN_READ_EXT: ! 1872: lba48 = 1; ! 1873: case WIN_READ: ! 1874: case WIN_READ_ONCE: ! 1875: if (!s->bs) ! 1876: goto abort_cmd; ! 1877: ide_cmd_lba48_transform(s, lba48); ! 1878: s->req_nb_sectors = 1; ! 1879: ide_sector_read(s); ! 1880: break; ! 1881: case WIN_WRITE_EXT: ! 1882: lba48 = 1; ! 1883: case WIN_WRITE: ! 1884: case WIN_WRITE_ONCE: ! 1885: case CFA_WRITE_SECT_WO_ERASE: ! 1886: case WIN_WRITE_VERIFY: ! 1887: ide_cmd_lba48_transform(s, lba48); ! 1888: s->error = 0; ! 1889: s->status = SEEK_STAT | READY_STAT; ! 1890: s->req_nb_sectors = 1; ! 1891: ide_transfer_start(s, s->io_buffer, 512, ide_sector_write); ! 1892: s->media_changed = 1; ! 1893: break; ! 1894: case WIN_MULTREAD_EXT: ! 1895: lba48 = 1; ! 1896: case WIN_MULTREAD: ! 1897: if (!s->mult_sectors) ! 1898: goto abort_cmd; ! 1899: ide_cmd_lba48_transform(s, lba48); ! 1900: s->req_nb_sectors = s->mult_sectors; ! 1901: ide_sector_read(s); ! 1902: break; ! 1903: case WIN_MULTWRITE_EXT: ! 1904: lba48 = 1; ! 1905: case WIN_MULTWRITE: ! 1906: case CFA_WRITE_MULTI_WO_ERASE: ! 1907: if (!s->mult_sectors) ! 1908: goto abort_cmd; ! 1909: ide_cmd_lba48_transform(s, lba48); ! 1910: s->error = 0; ! 1911: s->status = SEEK_STAT | READY_STAT; ! 1912: s->req_nb_sectors = s->mult_sectors; ! 1913: n = s->nsector; ! 1914: if (n > s->req_nb_sectors) ! 1915: n = s->req_nb_sectors; ! 1916: ide_transfer_start(s, s->io_buffer, 512 * n, ide_sector_write); ! 1917: s->media_changed = 1; ! 1918: break; ! 1919: case WIN_READDMA_EXT: ! 1920: lba48 = 1; ! 1921: case WIN_READDMA: ! 1922: case WIN_READDMA_ONCE: ! 1923: if (!s->bs) ! 1924: goto abort_cmd; ! 1925: ide_cmd_lba48_transform(s, lba48); ! 1926: ide_sector_read_dma(s); ! 1927: break; ! 1928: case WIN_WRITEDMA_EXT: ! 1929: lba48 = 1; ! 1930: case WIN_WRITEDMA: ! 1931: case WIN_WRITEDMA_ONCE: ! 1932: if (!s->bs) ! 1933: goto abort_cmd; ! 1934: ide_cmd_lba48_transform(s, lba48); ! 1935: ide_sector_write_dma(s); ! 1936: s->media_changed = 1; ! 1937: break; ! 1938: case WIN_READ_NATIVE_MAX_EXT: ! 1939: lba48 = 1; ! 1940: case WIN_READ_NATIVE_MAX: ! 1941: ide_cmd_lba48_transform(s, lba48); ! 1942: ide_set_sector(s, s->nb_sectors - 1); ! 1943: s->status = READY_STAT | SEEK_STAT; ! 1944: ide_set_irq(s->bus); ! 1945: break; ! 1946: case WIN_CHECKPOWERMODE1: ! 1947: case WIN_CHECKPOWERMODE2: ! 1948: s->nsector = 0xff; /* device active or idle */ ! 1949: s->status = READY_STAT | SEEK_STAT; ! 1950: ide_set_irq(s->bus); ! 1951: break; ! 1952: case WIN_SETFEATURES: ! 1953: if (!s->bs) ! 1954: goto abort_cmd; ! 1955: /* XXX: valid for CDROM ? */ ! 1956: switch(s->feature) { ! 1957: case 0xcc: /* reverting to power-on defaults enable */ ! 1958: case 0x66: /* reverting to power-on defaults disable */ ! 1959: case 0x02: /* write cache enable */ ! 1960: case 0x82: /* write cache disable */ ! 1961: case 0xaa: /* read look-ahead enable */ ! 1962: case 0x55: /* read look-ahead disable */ ! 1963: case 0x05: /* set advanced power management mode */ ! 1964: case 0x85: /* disable advanced power management mode */ ! 1965: case 0x69: /* NOP */ ! 1966: case 0x67: /* NOP */ ! 1967: case 0x96: /* NOP */ ! 1968: case 0x9a: /* NOP */ ! 1969: case 0x42: /* enable Automatic Acoustic Mode */ ! 1970: case 0xc2: /* disable Automatic Acoustic Mode */ ! 1971: s->status = READY_STAT | SEEK_STAT; ! 1972: ide_set_irq(s->bus); ! 1973: break; ! 1974: case 0x03: { /* set transfer mode */ ! 1975: uint8_t val = s->nsector & 0x07; ! 1976: uint16_t *identify_data = (uint16_t *)s->identify_data; ! 1977: ! 1978: switch (s->nsector >> 3) { ! 1979: case 0x00: /* pio default */ ! 1980: case 0x01: /* pio mode */ ! 1981: put_le16(identify_data + 62,0x07); ! 1982: put_le16(identify_data + 63,0x07); ! 1983: put_le16(identify_data + 88,0x3f); ! 1984: break; ! 1985: case 0x02: /* sigle word dma mode*/ ! 1986: put_le16(identify_data + 62,0x07 | (1 << (val + 8))); ! 1987: put_le16(identify_data + 63,0x07); ! 1988: put_le16(identify_data + 88,0x3f); ! 1989: break; ! 1990: case 0x04: /* mdma mode */ ! 1991: put_le16(identify_data + 62,0x07); ! 1992: put_le16(identify_data + 63,0x07 | (1 << (val + 8))); ! 1993: put_le16(identify_data + 88,0x3f); ! 1994: break; ! 1995: case 0x08: /* udma mode */ ! 1996: put_le16(identify_data + 62,0x07); ! 1997: put_le16(identify_data + 63,0x07); ! 1998: put_le16(identify_data + 88,0x3f | (1 << (val + 8))); ! 1999: break; ! 2000: default: ! 2001: goto abort_cmd; ! 2002: } ! 2003: s->status = READY_STAT | SEEK_STAT; ! 2004: ide_set_irq(s->bus); ! 2005: break; ! 2006: } ! 2007: default: ! 2008: goto abort_cmd; ! 2009: } ! 2010: break; ! 2011: case WIN_FLUSH_CACHE: ! 2012: case WIN_FLUSH_CACHE_EXT: ! 2013: if (s->bs) ! 2014: bdrv_aio_flush(s->bs, ide_flush_cb, s); ! 2015: else ! 2016: ide_flush_cb(s, 0); ! 2017: break; ! 2018: case WIN_STANDBY: ! 2019: case WIN_STANDBY2: ! 2020: case WIN_STANDBYNOW1: ! 2021: case WIN_STANDBYNOW2: ! 2022: case WIN_IDLEIMMEDIATE: ! 2023: case CFA_IDLEIMMEDIATE: ! 2024: case WIN_SETIDLE1: ! 2025: case WIN_SETIDLE2: ! 2026: case WIN_SLEEPNOW1: ! 2027: case WIN_SLEEPNOW2: ! 2028: s->status = READY_STAT; ! 2029: ide_set_irq(s->bus); ! 2030: break; ! 2031: case WIN_SEEK: ! 2032: if(s->is_cdrom) ! 2033: goto abort_cmd; ! 2034: /* XXX: Check that seek is within bounds */ ! 2035: s->status = READY_STAT | SEEK_STAT; ! 2036: ide_set_irq(s->bus); ! 2037: break; ! 2038: /* ATAPI commands */ ! 2039: case WIN_PIDENTIFY: ! 2040: if (s->is_cdrom) { ! 2041: ide_atapi_identify(s); ! 2042: s->status = READY_STAT | SEEK_STAT; ! 2043: ide_transfer_start(s, s->io_buffer, 512, ide_transfer_stop); ! 2044: } else { ! 2045: ide_abort_command(s); ! 2046: } ! 2047: ide_set_irq(s->bus); ! 2048: break; ! 2049: case WIN_DIAGNOSE: ! 2050: ide_set_signature(s); ! 2051: if (s->is_cdrom) ! 2052: s->status = 0; /* ATAPI spec (v6) section 9.10 defines packet ! 2053: * devices to return a clear status register ! 2054: * with READY_STAT *not* set. */ ! 2055: else ! 2056: s->status = READY_STAT | SEEK_STAT; ! 2057: s->error = 0x01; /* Device 0 passed, Device 1 passed or not ! 2058: * present. ! 2059: */ ! 2060: ide_set_irq(s->bus); ! 2061: break; ! 2062: case WIN_SRST: ! 2063: if (!s->is_cdrom) ! 2064: goto abort_cmd; ! 2065: ide_set_signature(s); ! 2066: s->status = 0x00; /* NOTE: READY is _not_ set */ ! 2067: s->error = 0x01; ! 2068: break; ! 2069: case WIN_PACKETCMD: ! 2070: if (!s->is_cdrom) ! 2071: goto abort_cmd; ! 2072: /* overlapping commands not supported */ ! 2073: if (s->feature & 0x02) ! 2074: goto abort_cmd; ! 2075: s->status = READY_STAT | SEEK_STAT; ! 2076: s->atapi_dma = s->feature & 1; ! 2077: s->nsector = 1; ! 2078: ide_transfer_start(s, s->io_buffer, ATAPI_PACKET_SIZE, ! 2079: ide_atapi_cmd); ! 2080: break; ! 2081: /* CF-ATA commands */ ! 2082: case CFA_REQ_EXT_ERROR_CODE: ! 2083: if (!s->is_cf) ! 2084: goto abort_cmd; ! 2085: s->error = 0x09; /* miscellaneous error */ ! 2086: s->status = READY_STAT | SEEK_STAT; ! 2087: ide_set_irq(s->bus); ! 2088: break; ! 2089: case CFA_ERASE_SECTORS: ! 2090: case CFA_WEAR_LEVEL: ! 2091: if (!s->is_cf) ! 2092: goto abort_cmd; ! 2093: if (val == CFA_WEAR_LEVEL) ! 2094: s->nsector = 0; ! 2095: if (val == CFA_ERASE_SECTORS) ! 2096: s->media_changed = 1; ! 2097: s->error = 0x00; ! 2098: s->status = READY_STAT | SEEK_STAT; ! 2099: ide_set_irq(s->bus); ! 2100: break; ! 2101: case CFA_TRANSLATE_SECTOR: ! 2102: if (!s->is_cf) ! 2103: goto abort_cmd; ! 2104: s->error = 0x00; ! 2105: s->status = READY_STAT | SEEK_STAT; ! 2106: memset(s->io_buffer, 0, 0x200); ! 2107: s->io_buffer[0x00] = s->hcyl; /* Cyl MSB */ ! 2108: s->io_buffer[0x01] = s->lcyl; /* Cyl LSB */ ! 2109: s->io_buffer[0x02] = s->select; /* Head */ ! 2110: s->io_buffer[0x03] = s->sector; /* Sector */ ! 2111: s->io_buffer[0x04] = ide_get_sector(s) >> 16; /* LBA MSB */ ! 2112: s->io_buffer[0x05] = ide_get_sector(s) >> 8; /* LBA */ ! 2113: s->io_buffer[0x06] = ide_get_sector(s) >> 0; /* LBA LSB */ ! 2114: s->io_buffer[0x13] = 0x00; /* Erase flag */ ! 2115: s->io_buffer[0x18] = 0x00; /* Hot count */ ! 2116: s->io_buffer[0x19] = 0x00; /* Hot count */ ! 2117: s->io_buffer[0x1a] = 0x01; /* Hot count */ ! 2118: ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop); ! 2119: ide_set_irq(s->bus); ! 2120: break; ! 2121: case CFA_ACCESS_METADATA_STORAGE: ! 2122: if (!s->is_cf) ! 2123: goto abort_cmd; ! 2124: switch (s->feature) { ! 2125: case 0x02: /* Inquiry Metadata Storage */ ! 2126: ide_cfata_metadata_inquiry(s); ! 2127: break; ! 2128: case 0x03: /* Read Metadata Storage */ ! 2129: ide_cfata_metadata_read(s); ! 2130: break; ! 2131: case 0x04: /* Write Metadata Storage */ ! 2132: ide_cfata_metadata_write(s); ! 2133: break; ! 2134: default: ! 2135: goto abort_cmd; ! 2136: } ! 2137: ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop); ! 2138: s->status = 0x00; /* NOTE: READY is _not_ set */ ! 2139: ide_set_irq(s->bus); ! 2140: break; ! 2141: case IBM_SENSE_CONDITION: ! 2142: if (!s->is_cf) ! 2143: goto abort_cmd; ! 2144: switch (s->feature) { ! 2145: case 0x01: /* sense temperature in device */ ! 2146: s->nsector = 0x50; /* +20 C */ ! 2147: break; ! 2148: default: ! 2149: goto abort_cmd; ! 2150: } ! 2151: s->status = READY_STAT | SEEK_STAT; ! 2152: ide_set_irq(s->bus); ! 2153: break; ! 2154: ! 2155: case WIN_SMART: ! 2156: if (s->is_cdrom) ! 2157: goto abort_cmd; ! 2158: if (s->hcyl != 0xc2 || s->lcyl != 0x4f) ! 2159: goto abort_cmd; ! 2160: if (!s->smart_enabled && s->feature != SMART_ENABLE) ! 2161: goto abort_cmd; ! 2162: switch (s->feature) { ! 2163: case SMART_DISABLE: ! 2164: s->smart_enabled = 0; ! 2165: s->status = READY_STAT | SEEK_STAT; ! 2166: ide_set_irq(s->bus); ! 2167: break; ! 2168: case SMART_ENABLE: ! 2169: s->smart_enabled = 1; ! 2170: s->status = READY_STAT | SEEK_STAT; ! 2171: ide_set_irq(s->bus); ! 2172: break; ! 2173: case SMART_ATTR_AUTOSAVE: ! 2174: switch (s->sector) { ! 2175: case 0x00: ! 2176: s->smart_autosave = 0; ! 2177: break; ! 2178: case 0xf1: ! 2179: s->smart_autosave = 1; ! 2180: break; ! 2181: default: ! 2182: goto abort_cmd; ! 2183: } ! 2184: s->status = READY_STAT | SEEK_STAT; ! 2185: ide_set_irq(s->bus); ! 2186: break; ! 2187: case SMART_STATUS: ! 2188: if (!s->smart_errors) { ! 2189: s->hcyl = 0xc2; ! 2190: s->lcyl = 0x4f; ! 2191: } else { ! 2192: s->hcyl = 0x2c; ! 2193: s->lcyl = 0xf4; ! 2194: } ! 2195: s->status = READY_STAT | SEEK_STAT; ! 2196: ide_set_irq(s->bus); ! 2197: break; ! 2198: case SMART_READ_THRESH: ! 2199: memset(s->io_buffer, 0, 0x200); ! 2200: s->io_buffer[0] = 0x01; /* smart struct version */ ! 2201: for (n=0; n<30; n++) { ! 2202: if (smart_attributes[n][0] == 0) ! 2203: break; ! 2204: s->io_buffer[2+0+(n*12)] = smart_attributes[n][0]; ! 2205: s->io_buffer[2+1+(n*12)] = smart_attributes[n][4]; ! 2206: } ! 2207: for (n=0; n<511; n++) /* checksum */ ! 2208: s->io_buffer[511] += s->io_buffer[n]; ! 2209: s->io_buffer[511] = 0x100 - s->io_buffer[511]; ! 2210: s->status = READY_STAT | SEEK_STAT; ! 2211: ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop); ! 2212: ide_set_irq(s->bus); ! 2213: break; ! 2214: case SMART_READ_DATA: ! 2215: memset(s->io_buffer, 0, 0x200); ! 2216: s->io_buffer[0] = 0x01; /* smart struct version */ ! 2217: for (n=0; n<30; n++) { ! 2218: if (smart_attributes[n][0] == 0) ! 2219: break; ! 2220: s->io_buffer[2+0+(n*12)] = smart_attributes[n][0]; ! 2221: s->io_buffer[2+1+(n*12)] = smart_attributes[n][1]; ! 2222: s->io_buffer[2+3+(n*12)] = smart_attributes[n][2]; ! 2223: s->io_buffer[2+4+(n*12)] = smart_attributes[n][3]; ! 2224: } ! 2225: s->io_buffer[362] = 0x02 | (s->smart_autosave?0x80:0x00); ! 2226: if (s->smart_selftest_count == 0) { ! 2227: s->io_buffer[363] = 0; ! 2228: } else { ! 2229: s->io_buffer[363] = ! 2230: s->smart_selftest_data[3 + ! 2231: (s->smart_selftest_count - 1) * ! 2232: 24]; ! 2233: } ! 2234: s->io_buffer[364] = 0x20; ! 2235: s->io_buffer[365] = 0x01; ! 2236: /* offline data collection capacity: execute + self-test*/ ! 2237: s->io_buffer[367] = (1<<4 | 1<<3 | 1); ! 2238: s->io_buffer[368] = 0x03; /* smart capability (1) */ ! 2239: s->io_buffer[369] = 0x00; /* smart capability (2) */ ! 2240: s->io_buffer[370] = 0x01; /* error logging supported */ ! 2241: s->io_buffer[372] = 0x02; /* minutes for poll short test */ ! 2242: s->io_buffer[373] = 0x36; /* minutes for poll ext test */ ! 2243: s->io_buffer[374] = 0x01; /* minutes for poll conveyance */ ! 2244: ! 2245: for (n=0; n<511; n++) ! 2246: s->io_buffer[511] += s->io_buffer[n]; ! 2247: s->io_buffer[511] = 0x100 - s->io_buffer[511]; ! 2248: s->status = READY_STAT | SEEK_STAT; ! 2249: ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop); ! 2250: ide_set_irq(s->bus); ! 2251: break; ! 2252: case SMART_READ_LOG: ! 2253: switch (s->sector) { ! 2254: case 0x01: /* summary smart error log */ ! 2255: memset(s->io_buffer, 0, 0x200); ! 2256: s->io_buffer[0] = 0x01; ! 2257: s->io_buffer[1] = 0x00; /* no error entries */ ! 2258: s->io_buffer[452] = s->smart_errors & 0xff; ! 2259: s->io_buffer[453] = (s->smart_errors & 0xff00) >> 8; ! 2260: ! 2261: for (n=0; n<511; n++) ! 2262: s->io_buffer[511] += s->io_buffer[n]; ! 2263: s->io_buffer[511] = 0x100 - s->io_buffer[511]; ! 2264: break; ! 2265: case 0x06: /* smart self test log */ ! 2266: memset(s->io_buffer, 0, 0x200); ! 2267: s->io_buffer[0] = 0x01; ! 2268: if (s->smart_selftest_count == 0) { ! 2269: s->io_buffer[508] = 0; ! 2270: } else { ! 2271: s->io_buffer[508] = s->smart_selftest_count; ! 2272: for (n=2; n<506; n++) ! 2273: s->io_buffer[n] = s->smart_selftest_data[n]; ! 2274: } ! 2275: for (n=0; n<511; n++) ! 2276: s->io_buffer[511] += s->io_buffer[n]; ! 2277: s->io_buffer[511] = 0x100 - s->io_buffer[511]; ! 2278: break; ! 2279: default: ! 2280: goto abort_cmd; ! 2281: } ! 2282: s->status = READY_STAT | SEEK_STAT; ! 2283: ide_transfer_start(s, s->io_buffer, 0x200, ide_transfer_stop); ! 2284: ide_set_irq(s->bus); ! 2285: break; ! 2286: case SMART_EXECUTE_OFFLINE: ! 2287: switch (s->sector) { ! 2288: case 0: /* off-line routine */ ! 2289: case 1: /* short self test */ ! 2290: case 2: /* extended self test */ ! 2291: s->smart_selftest_count++; ! 2292: if(s->smart_selftest_count > 21) ! 2293: s->smart_selftest_count = 0; ! 2294: n = 2 + (s->smart_selftest_count - 1) * 24; ! 2295: s->smart_selftest_data[n] = s->sector; ! 2296: s->smart_selftest_data[n+1] = 0x00; /* OK and finished */ ! 2297: s->smart_selftest_data[n+2] = 0x34; /* hour count lsb */ ! 2298: s->smart_selftest_data[n+3] = 0x12; /* hour count msb */ ! 2299: s->status = READY_STAT | SEEK_STAT; ! 2300: ide_set_irq(s->bus); ! 2301: break; ! 2302: default: ! 2303: goto abort_cmd; ! 2304: } ! 2305: break; ! 2306: default: ! 2307: goto abort_cmd; ! 2308: } ! 2309: break; ! 2310: default: ! 2311: abort_cmd: ! 2312: ide_abort_command(s); ! 2313: ide_set_irq(s->bus); ! 2314: break; ! 2315: } ! 2316: } ! 2317: } ! 2318: ! 2319: uint32_t ide_ioport_read(void *opaque, uint32_t addr1) ! 2320: { ! 2321: IDEBus *bus = opaque; ! 2322: IDEState *s = idebus_active_if(bus); ! 2323: uint32_t addr; ! 2324: int ret, hob; ! 2325: ! 2326: addr = addr1 & 7; ! 2327: /* FIXME: HOB readback uses bit 7, but it's always set right now */ ! 2328: //hob = s->select & (1 << 7); ! 2329: hob = 0; ! 2330: switch(addr) { ! 2331: case 0: ! 2332: ret = 0xff; ! 2333: break; ! 2334: case 1: ! 2335: if ((!bus->ifs[0].bs && !bus->ifs[1].bs) || ! 2336: (s != bus->ifs && !s->bs)) ! 2337: ret = 0; ! 2338: else if (!hob) ! 2339: ret = s->error; ! 2340: else ! 2341: ret = s->hob_feature; ! 2342: break; ! 2343: case 2: ! 2344: if (!bus->ifs[0].bs && !bus->ifs[1].bs) ! 2345: ret = 0; ! 2346: else if (!hob) ! 2347: ret = s->nsector & 0xff; ! 2348: else ! 2349: ret = s->hob_nsector; ! 2350: break; ! 2351: case 3: ! 2352: if (!bus->ifs[0].bs && !bus->ifs[1].bs) ! 2353: ret = 0; ! 2354: else if (!hob) ! 2355: ret = s->sector; ! 2356: else ! 2357: ret = s->hob_sector; ! 2358: break; ! 2359: case 4: ! 2360: if (!bus->ifs[0].bs && !bus->ifs[1].bs) ! 2361: ret = 0; ! 2362: else if (!hob) ! 2363: ret = s->lcyl; ! 2364: else ! 2365: ret = s->hob_lcyl; ! 2366: break; ! 2367: case 5: ! 2368: if (!bus->ifs[0].bs && !bus->ifs[1].bs) ! 2369: ret = 0; ! 2370: else if (!hob) ! 2371: ret = s->hcyl; ! 2372: else ! 2373: ret = s->hob_hcyl; ! 2374: break; ! 2375: case 6: ! 2376: if (!bus->ifs[0].bs && !bus->ifs[1].bs) ! 2377: ret = 0; ! 2378: else ! 2379: ret = s->select; ! 2380: break; ! 2381: default: ! 2382: case 7: ! 2383: if ((!bus->ifs[0].bs && !bus->ifs[1].bs) || ! 2384: (s != bus->ifs && !s->bs)) ! 2385: ret = 0; ! 2386: else ! 2387: ret = s->status; ! 2388: qemu_irq_lower(bus->irq); ! 2389: break; ! 2390: } ! 2391: #ifdef DEBUG_IDE ! 2392: printf("ide: read addr=0x%x val=%02x\n", addr1, ret); ! 2393: #endif ! 2394: return ret; ! 2395: } ! 2396: ! 2397: uint32_t ide_status_read(void *opaque, uint32_t addr) ! 2398: { ! 2399: IDEBus *bus = opaque; ! 2400: IDEState *s = idebus_active_if(bus); ! 2401: int ret; ! 2402: ! 2403: if ((!bus->ifs[0].bs && !bus->ifs[1].bs) || ! 2404: (s != bus->ifs && !s->bs)) ! 2405: ret = 0; ! 2406: else ! 2407: ret = s->status; ! 2408: #ifdef DEBUG_IDE ! 2409: printf("ide: read status addr=0x%x val=%02x\n", addr, ret); ! 2410: #endif ! 2411: return ret; ! 2412: } ! 2413: ! 2414: void ide_cmd_write(void *opaque, uint32_t addr, uint32_t val) ! 2415: { ! 2416: IDEBus *bus = opaque; ! 2417: IDEState *s; ! 2418: int i; ! 2419: ! 2420: #ifdef DEBUG_IDE ! 2421: printf("ide: write control addr=0x%x val=%02x\n", addr, val); ! 2422: #endif ! 2423: /* common for both drives */ ! 2424: if (!(bus->cmd & IDE_CMD_RESET) && ! 2425: (val & IDE_CMD_RESET)) { ! 2426: /* reset low to high */ ! 2427: for(i = 0;i < 2; i++) { ! 2428: s = &bus->ifs[i]; ! 2429: s->status = BUSY_STAT | SEEK_STAT; ! 2430: s->error = 0x01; ! 2431: } ! 2432: } else if ((bus->cmd & IDE_CMD_RESET) && ! 2433: !(val & IDE_CMD_RESET)) { ! 2434: /* high to low */ ! 2435: for(i = 0;i < 2; i++) { ! 2436: s = &bus->ifs[i]; ! 2437: if (s->is_cdrom) ! 2438: s->status = 0x00; /* NOTE: READY is _not_ set */ ! 2439: else ! 2440: s->status = READY_STAT | SEEK_STAT; ! 2441: ide_set_signature(s); ! 2442: } ! 2443: } ! 2444: ! 2445: bus->cmd = val; ! 2446: } ! 2447: ! 2448: void ide_data_writew(void *opaque, uint32_t addr, uint32_t val) ! 2449: { ! 2450: IDEBus *bus = opaque; ! 2451: IDEState *s = idebus_active_if(bus); ! 2452: uint8_t *p; ! 2453: ! 2454: /* PIO data access allowed only when DRQ bit is set */ ! 2455: if (!(s->status & DRQ_STAT)) ! 2456: return; ! 2457: ! 2458: p = s->data_ptr; ! 2459: *(uint16_t *)p = le16_to_cpu(val); ! 2460: p += 2; ! 2461: s->data_ptr = p; ! 2462: if (p >= s->data_end) ! 2463: s->end_transfer_func(s); ! 2464: } ! 2465: ! 2466: uint32_t ide_data_readw(void *opaque, uint32_t addr) ! 2467: { ! 2468: IDEBus *bus = opaque; ! 2469: IDEState *s = idebus_active_if(bus); ! 2470: uint8_t *p; ! 2471: int ret; ! 2472: ! 2473: /* PIO data access allowed only when DRQ bit is set */ ! 2474: if (!(s->status & DRQ_STAT)) ! 2475: return 0; ! 2476: ! 2477: p = s->data_ptr; ! 2478: ret = cpu_to_le16(*(uint16_t *)p); ! 2479: p += 2; ! 2480: s->data_ptr = p; ! 2481: if (p >= s->data_end) ! 2482: s->end_transfer_func(s); ! 2483: return ret; ! 2484: } ! 2485: ! 2486: void ide_data_writel(void *opaque, uint32_t addr, uint32_t val) ! 2487: { ! 2488: IDEBus *bus = opaque; ! 2489: IDEState *s = idebus_active_if(bus); ! 2490: uint8_t *p; ! 2491: ! 2492: /* PIO data access allowed only when DRQ bit is set */ ! 2493: if (!(s->status & DRQ_STAT)) ! 2494: return; ! 2495: ! 2496: p = s->data_ptr; ! 2497: *(uint32_t *)p = le32_to_cpu(val); ! 2498: p += 4; ! 2499: s->data_ptr = p; ! 2500: if (p >= s->data_end) ! 2501: s->end_transfer_func(s); ! 2502: } ! 2503: ! 2504: uint32_t ide_data_readl(void *opaque, uint32_t addr) ! 2505: { ! 2506: IDEBus *bus = opaque; ! 2507: IDEState *s = idebus_active_if(bus); ! 2508: uint8_t *p; ! 2509: int ret; ! 2510: ! 2511: /* PIO data access allowed only when DRQ bit is set */ ! 2512: if (!(s->status & DRQ_STAT)) ! 2513: return 0; ! 2514: ! 2515: p = s->data_ptr; ! 2516: ret = cpu_to_le32(*(uint32_t *)p); ! 2517: p += 4; ! 2518: s->data_ptr = p; ! 2519: if (p >= s->data_end) ! 2520: s->end_transfer_func(s); ! 2521: return ret; ! 2522: } ! 2523: ! 2524: static void ide_dummy_transfer_stop(IDEState *s) ! 2525: { ! 2526: s->data_ptr = s->io_buffer; ! 2527: s->data_end = s->io_buffer; ! 2528: s->io_buffer[0] = 0xff; ! 2529: s->io_buffer[1] = 0xff; ! 2530: s->io_buffer[2] = 0xff; ! 2531: s->io_buffer[3] = 0xff; ! 2532: } ! 2533: ! 2534: static void ide_reset(IDEState *s) ! 2535: { ! 2536: #ifdef DEBUG_IDE ! 2537: printf("ide: reset\n"); ! 2538: #endif ! 2539: if (s->is_cf) ! 2540: s->mult_sectors = 0; ! 2541: else ! 2542: s->mult_sectors = MAX_MULT_SECTORS; ! 2543: /* ide regs */ ! 2544: s->feature = 0; ! 2545: s->error = 0; ! 2546: s->nsector = 0; ! 2547: s->sector = 0; ! 2548: s->lcyl = 0; ! 2549: s->hcyl = 0; ! 2550: ! 2551: /* lba48 */ ! 2552: s->hob_feature = 0; ! 2553: s->hob_sector = 0; ! 2554: s->hob_nsector = 0; ! 2555: s->hob_lcyl = 0; ! 2556: s->hob_hcyl = 0; ! 2557: ! 2558: s->select = 0xa0; ! 2559: s->status = READY_STAT | SEEK_STAT; ! 2560: ! 2561: s->lba48 = 0; ! 2562: ! 2563: /* ATAPI specific */ ! 2564: s->sense_key = 0; ! 2565: s->asc = 0; ! 2566: s->cdrom_changed = 0; ! 2567: s->packet_transfer_size = 0; ! 2568: s->elementary_transfer_size = 0; ! 2569: s->io_buffer_index = 0; ! 2570: s->cd_sector_size = 0; ! 2571: s->atapi_dma = 0; ! 2572: /* ATA DMA state */ ! 2573: s->io_buffer_size = 0; ! 2574: s->req_nb_sectors = 0; ! 2575: ! 2576: ide_set_signature(s); ! 2577: /* init the transfer handler so that 0xffff is returned on data ! 2578: accesses */ ! 2579: s->end_transfer_func = ide_dummy_transfer_stop; ! 2580: ide_dummy_transfer_stop(s); ! 2581: s->media_changed = 0; ! 2582: } ! 2583: ! 2584: void ide_bus_reset(IDEBus *bus) ! 2585: { ! 2586: bus->unit = 0; ! 2587: bus->cmd = 0; ! 2588: ide_reset(&bus->ifs[0]); ! 2589: ide_reset(&bus->ifs[1]); ! 2590: ide_clear_hob(bus); ! 2591: } ! 2592: ! 2593: void ide_init_drive(IDEState *s, DriveInfo *dinfo) ! 2594: { ! 2595: int cylinders, heads, secs; ! 2596: uint64_t nb_sectors; ! 2597: ! 2598: if (dinfo && dinfo->bdrv) { ! 2599: s->bs = dinfo->bdrv; ! 2600: bdrv_get_geometry(s->bs, &nb_sectors); ! 2601: bdrv_guess_geometry(s->bs, &cylinders, &heads, &secs); ! 2602: s->cylinders = cylinders; ! 2603: s->heads = heads; ! 2604: s->sectors = secs; ! 2605: s->nb_sectors = nb_sectors; ! 2606: /* The SMART values should be preserved across power cycles ! 2607: but they aren't. */ ! 2608: s->smart_enabled = 1; ! 2609: s->smart_autosave = 1; ! 2610: s->smart_errors = 0; ! 2611: s->smart_selftest_count = 0; ! 2612: if (bdrv_get_type_hint(s->bs) == BDRV_TYPE_CDROM) { ! 2613: s->is_cdrom = 1; ! 2614: bdrv_set_change_cb(s->bs, cdrom_change_cb, s); ! 2615: } ! 2616: strncpy(s->drive_serial_str, drive_get_serial(s->bs), ! 2617: sizeof(s->drive_serial_str)); ! 2618: } ! 2619: if (strlen(s->drive_serial_str) == 0) ! 2620: snprintf(s->drive_serial_str, sizeof(s->drive_serial_str), ! 2621: "QM%05d", s->drive_serial); ! 2622: ide_reset(s); ! 2623: } ! 2624: ! 2625: void ide_init2(IDEBus *bus, DriveInfo *hd0, DriveInfo *hd1, ! 2626: qemu_irq irq) ! 2627: { ! 2628: IDEState *s; ! 2629: static int drive_serial = 1; ! 2630: int i; ! 2631: ! 2632: for(i = 0; i < 2; i++) { ! 2633: s = bus->ifs + i; ! 2634: s->bus = bus; ! 2635: s->unit = i; ! 2636: s->drive_serial = drive_serial++; ! 2637: s->io_buffer = qemu_blockalign(s->bs, IDE_DMA_BUF_SECTORS*512 + 4); ! 2638: s->smart_selftest_data = qemu_blockalign(s->bs, 512); ! 2639: s->sector_write_timer = qemu_new_timer(vm_clock, ! 2640: ide_sector_write_timer_cb, s); ! 2641: if (i == 0) ! 2642: ide_init_drive(s, hd0); ! 2643: if (i == 1) ! 2644: ide_init_drive(s, hd1); ! 2645: } ! 2646: bus->irq = irq; ! 2647: } ! 2648: ! 2649: void ide_init_ioport(IDEBus *bus, int iobase, int iobase2) ! 2650: { ! 2651: register_ioport_write(iobase, 8, 1, ide_ioport_write, bus); ! 2652: register_ioport_read(iobase, 8, 1, ide_ioport_read, bus); ! 2653: if (iobase2) { ! 2654: register_ioport_read(iobase2, 1, 1, ide_status_read, bus); ! 2655: register_ioport_write(iobase2, 1, 1, ide_cmd_write, bus); ! 2656: } ! 2657: ! 2658: /* data ports */ ! 2659: register_ioport_write(iobase, 2, 2, ide_data_writew, bus); ! 2660: register_ioport_read(iobase, 2, 2, ide_data_readw, bus); ! 2661: register_ioport_write(iobase, 4, 4, ide_data_writel, bus); ! 2662: register_ioport_read(iobase, 4, 4, ide_data_readl, bus); ! 2663: } ! 2664: ! 2665: static bool is_identify_set(void *opaque, int version_id) ! 2666: { ! 2667: IDEState *s = opaque; ! 2668: ! 2669: return s->identify_set != 0; ! 2670: } ! 2671: ! 2672: static int ide_drive_post_load(void *opaque, int version_id) ! 2673: { ! 2674: IDEState *s = opaque; ! 2675: ! 2676: if (version_id < 3) { ! 2677: if (s->sense_key == SENSE_UNIT_ATTENTION && ! 2678: s->asc == ASC_MEDIUM_MAY_HAVE_CHANGED) { ! 2679: s->cdrom_changed = 1; ! 2680: } ! 2681: } ! 2682: return 0; ! 2683: } ! 2684: ! 2685: const VMStateDescription vmstate_ide_drive = { ! 2686: .name = "ide_drive", ! 2687: .version_id = 3, ! 2688: .minimum_version_id = 0, ! 2689: .minimum_version_id_old = 0, ! 2690: .post_load = ide_drive_post_load, ! 2691: .fields = (VMStateField []) { ! 2692: VMSTATE_INT32(mult_sectors, IDEState), ! 2693: VMSTATE_INT32(identify_set, IDEState), ! 2694: VMSTATE_BUFFER_TEST(identify_data, IDEState, is_identify_set), ! 2695: VMSTATE_UINT8(feature, IDEState), ! 2696: VMSTATE_UINT8(error, IDEState), ! 2697: VMSTATE_UINT32(nsector, IDEState), ! 2698: VMSTATE_UINT8(sector, IDEState), ! 2699: VMSTATE_UINT8(lcyl, IDEState), ! 2700: VMSTATE_UINT8(hcyl, IDEState), ! 2701: VMSTATE_UINT8(hob_feature, IDEState), ! 2702: VMSTATE_UINT8(hob_sector, IDEState), ! 2703: VMSTATE_UINT8(hob_nsector, IDEState), ! 2704: VMSTATE_UINT8(hob_lcyl, IDEState), ! 2705: VMSTATE_UINT8(hob_hcyl, IDEState), ! 2706: VMSTATE_UINT8(select, IDEState), ! 2707: VMSTATE_UINT8(status, IDEState), ! 2708: VMSTATE_UINT8(lba48, IDEState), ! 2709: VMSTATE_UINT8(sense_key, IDEState), ! 2710: VMSTATE_UINT8(asc, IDEState), ! 2711: VMSTATE_UINT8_V(cdrom_changed, IDEState, 3), ! 2712: /* XXX: if a transfer is pending, we do not save it yet */ ! 2713: VMSTATE_END_OF_LIST() ! 2714: } ! 2715: }; ! 2716: ! 2717: const VMStateDescription vmstate_ide_bus = { ! 2718: .name = "ide_bus", ! 2719: .version_id = 1, ! 2720: .minimum_version_id = 1, ! 2721: .minimum_version_id_old = 1, ! 2722: .fields = (VMStateField []) { ! 2723: VMSTATE_UINT8(cmd, IDEBus), ! 2724: VMSTATE_UINT8(unit, IDEBus), ! 2725: VMSTATE_END_OF_LIST() ! 2726: } ! 2727: }; ! 2728: ! 2729: /***********************************************************/ ! 2730: /* PCI IDE definitions */ ! 2731: ! 2732: static void ide_dma_start(IDEState *s, BlockDriverCompletionFunc *dma_cb) ! 2733: { ! 2734: BMDMAState *bm = s->bus->bmdma; ! 2735: if(!bm) ! 2736: return; ! 2737: bm->unit = s->unit; ! 2738: bm->dma_cb = dma_cb; ! 2739: bm->cur_prd_last = 0; ! 2740: bm->cur_prd_addr = 0; ! 2741: bm->cur_prd_len = 0; ! 2742: bm->sector_num = ide_get_sector(s); ! 2743: bm->nsector = s->nsector; ! 2744: if (bm->status & BM_STATUS_DMAING) { ! 2745: bm->dma_cb(bm, 0); ! 2746: } ! 2747: } ! 2748: ! 2749: static void ide_dma_restart(IDEState *s, int is_read) ! 2750: { ! 2751: BMDMAState *bm = s->bus->bmdma; ! 2752: ide_set_sector(s, bm->sector_num); ! 2753: s->io_buffer_index = 0; ! 2754: s->io_buffer_size = 0; ! 2755: s->nsector = bm->nsector; ! 2756: bm->cur_addr = bm->addr; ! 2757: ! 2758: if (is_read) { ! 2759: bm->dma_cb = ide_read_dma_cb; ! 2760: } else { ! 2761: bm->dma_cb = ide_write_dma_cb; ! 2762: } ! 2763: ! 2764: ide_dma_start(s, bm->dma_cb); ! 2765: } ! 2766: ! 2767: void ide_dma_cancel(BMDMAState *bm) ! 2768: { ! 2769: if (bm->status & BM_STATUS_DMAING) { ! 2770: bm->status &= ~BM_STATUS_DMAING; ! 2771: /* cancel DMA request */ ! 2772: bm->unit = -1; ! 2773: bm->dma_cb = NULL; ! 2774: if (bm->aiocb) { ! 2775: #ifdef DEBUG_AIO ! 2776: printf("aio_cancel\n"); ! 2777: #endif ! 2778: bdrv_aio_cancel(bm->aiocb); ! 2779: bm->aiocb = NULL; ! 2780: } ! 2781: } ! 2782: } ! 2783: ! 2784: void ide_dma_reset(BMDMAState *bm) ! 2785: { ! 2786: #ifdef DEBUG_IDE ! 2787: printf("ide: dma_reset\n"); ! 2788: #endif ! 2789: ide_dma_cancel(bm); ! 2790: bm->cmd = 0; ! 2791: bm->status = 0; ! 2792: bm->addr = 0; ! 2793: bm->cur_addr = 0; ! 2794: bm->cur_prd_last = 0; ! 2795: bm->cur_prd_addr = 0; ! 2796: bm->cur_prd_len = 0; ! 2797: bm->sector_num = 0; ! 2798: bm->nsector = 0; ! 2799: }
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.