Lines Matching +full:dma +full:- +full:requests
29 #include "system/block-backend.h"
31 #include "ide-internal.h"
60 return !s->tray_open && s->nb_sectors > 0; in media_present()
66 return (media_present(s) && s->nb_sectors > CD_MAX_SECTORS); in media_is_dvd()
71 return (media_present(s) && s->nb_sectors <= CD_MAX_SECTORS); in media_is_cd()
95 block_acct_start(blk_get_stats(s->blk), &s->acct, in cd_read_sector_sync()
98 trace_cd_read_sector_sync(s->lba); in cd_read_sector_sync()
100 switch (s->cd_sector_size) { in cd_read_sector_sync()
102 ret = blk_pread(s->blk, (int64_t)s->lba << ATAPI_SECTOR_BITS, in cd_read_sector_sync()
103 ATAPI_SECTOR_SIZE, s->io_buffer, 0); in cd_read_sector_sync()
106 ret = blk_pread(s->blk, (int64_t)s->lba << ATAPI_SECTOR_BITS, in cd_read_sector_sync()
107 ATAPI_SECTOR_SIZE, s->io_buffer + 16, 0); in cd_read_sector_sync()
109 cd_data_to_raw(s->io_buffer, s->lba); in cd_read_sector_sync()
113 block_acct_invalid(blk_get_stats(s->blk), BLOCK_ACCT_READ); in cd_read_sector_sync()
114 return -EIO; in cd_read_sector_sync()
118 block_acct_failed(blk_get_stats(s->blk), &s->acct); in cd_read_sector_sync()
120 block_acct_done(blk_get_stats(s->blk), &s->acct); in cd_read_sector_sync()
121 s->lba++; in cd_read_sector_sync()
122 s->io_buffer_index = 0; in cd_read_sector_sync()
132 trace_cd_read_sector_cb(s->lba, ret); in cd_read_sector_cb()
135 block_acct_failed(blk_get_stats(s->blk), &s->acct); in cd_read_sector_cb()
140 block_acct_done(blk_get_stats(s->blk), &s->acct); in cd_read_sector_cb()
142 if (s->cd_sector_size == 2352) { in cd_read_sector_cb()
143 cd_data_to_raw(s->io_buffer, s->lba); in cd_read_sector_cb()
146 s->lba++; in cd_read_sector_cb()
147 s->io_buffer_index = 0; in cd_read_sector_cb()
148 s->status &= ~BUSY_STAT; in cd_read_sector_cb()
157 if (s->cd_sector_size != 2048 && s->cd_sector_size != 2352) { in cd_read_sector()
158 block_acct_invalid(blk_get_stats(s->blk), BLOCK_ACCT_READ); in cd_read_sector()
159 return -EINVAL; in cd_read_sector()
162 buf = (s->cd_sector_size == 2352) ? s->io_buffer + 16 : s->io_buffer; in cd_read_sector()
163 qemu_iovec_init_buf(&s->qiov, buf, ATAPI_SECTOR_SIZE); in cd_read_sector()
165 trace_cd_read_sector(s->lba); in cd_read_sector()
167 block_acct_start(blk_get_stats(s->blk), &s->acct, in cd_read_sector()
170 ide_buffered_readv(s, (int64_t)s->lba << 2, &s->qiov, 4, in cd_read_sector()
173 s->status |= BUSY_STAT; in cd_read_sector()
179 s->error = 0; in ide_atapi_cmd_ok()
180 s->status = READY_STAT | SEEK_STAT; in ide_atapi_cmd_ok()
181 s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD; in ide_atapi_cmd_ok()
183 ide_bus_set_irq(s->bus); in ide_atapi_cmd_ok()
189 s->error = sense_key << 4; in ide_atapi_cmd_error()
190 s->status = READY_STAT | ERR_STAT; in ide_atapi_cmd_error()
191 s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD; in ide_atapi_cmd_error()
192 s->sense_key = sense_key; in ide_atapi_cmd_error()
193 s->asc = asc; in ide_atapi_cmd_error()
195 ide_bus_set_irq(s->bus); in ide_atapi_cmd_error()
201 if (ret == -ENOMEDIUM) { in ide_atapi_io_error()
214 bcl = s->lcyl | (s->hcyl << 8); in atapi_byte_count_limit()
225 while (s->packet_transfer_size > 0) { in ide_atapi_cmd_reply_end()
226 trace_ide_atapi_cmd_reply_end(s, s->packet_transfer_size, in ide_atapi_cmd_reply_end()
227 s->elementary_transfer_size, in ide_atapi_cmd_reply_end()
228 s->io_buffer_index); in ide_atapi_cmd_reply_end()
231 if (s->lba != -1 && s->io_buffer_index >= s->cd_sector_size) { in ide_atapi_cmd_reply_end()
232 if (!s->elementary_transfer_size) { in ide_atapi_cmd_reply_end()
249 if (s->elementary_transfer_size > 0) { in ide_atapi_cmd_reply_end()
252 size = s->cd_sector_size - s->io_buffer_index; in ide_atapi_cmd_reply_end()
253 if (size > s->elementary_transfer_size) in ide_atapi_cmd_reply_end()
254 size = s->elementary_transfer_size; in ide_atapi_cmd_reply_end()
257 s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO; in ide_atapi_cmd_reply_end()
258 ide_bus_set_irq(s->bus); in ide_atapi_cmd_reply_end()
261 size = s->packet_transfer_size; in ide_atapi_cmd_reply_end()
265 byte_count_limit--; in ide_atapi_cmd_reply_end()
268 s->lcyl = size & 0xff; in ide_atapi_cmd_reply_end()
269 s->hcyl = size >> 8; in ide_atapi_cmd_reply_end()
270 s->elementary_transfer_size = size; in ide_atapi_cmd_reply_end()
272 if (s->lba != -1) { in ide_atapi_cmd_reply_end()
273 if (size > (s->cd_sector_size - s->io_buffer_index)) in ide_atapi_cmd_reply_end()
274 size = (s->cd_sector_size - s->io_buffer_index); in ide_atapi_cmd_reply_end()
276 trace_ide_atapi_cmd_reply_end_new(s, s->status); in ide_atapi_cmd_reply_end()
278 s->packet_transfer_size -= size; in ide_atapi_cmd_reply_end()
279 s->elementary_transfer_size -= size; in ide_atapi_cmd_reply_end()
280 s->io_buffer_index += size; in ide_atapi_cmd_reply_end()
281 assert(size <= s->io_buffer_total_len); in ide_atapi_cmd_reply_end()
282 assert(s->io_buffer_index <= s->io_buffer_total_len); in ide_atapi_cmd_reply_end()
289 s->io_buffer + s->io_buffer_index - size, in ide_atapi_cmd_reply_end()
296 trace_ide_atapi_cmd_reply_end_eot(s, s->status); in ide_atapi_cmd_reply_end()
298 ide_bus_set_irq(s->bus); in ide_atapi_cmd_reply_end()
301 /* send a reply of 'size' bytes in s->io_buffer to an ATAPI command */
306 s->lba = -1; /* no sector read */ in ide_atapi_cmd_reply()
307 s->packet_transfer_size = size; in ide_atapi_cmd_reply()
308 s->io_buffer_size = size; /* dma: send the reply data as one chunk */ in ide_atapi_cmd_reply()
309 s->elementary_transfer_size = 0; in ide_atapi_cmd_reply()
311 if (s->atapi_dma) { in ide_atapi_cmd_reply()
312 block_acct_start(blk_get_stats(s->blk), &s->acct, size, in ide_atapi_cmd_reply()
314 s->status = READY_STAT | SEEK_STAT | DRQ_STAT; in ide_atapi_cmd_reply()
317 s->status = READY_STAT | SEEK_STAT; in ide_atapi_cmd_reply()
318 s->io_buffer_index = 0; in ide_atapi_cmd_reply()
323 /* start a CD-ROM read command */
327 assert(0 <= lba && lba < (s->nb_sectors >> 2)); in ide_atapi_cmd_read_pio()
329 s->lba = lba; in ide_atapi_cmd_read_pio()
330 s->packet_transfer_size = nb_sectors * sector_size; in ide_atapi_cmd_read_pio()
331 s->elementary_transfer_size = 0; in ide_atapi_cmd_read_pio()
332 s->io_buffer_index = sector_size; in ide_atapi_cmd_read_pio()
333 s->cd_sector_size = sector_size; in ide_atapi_cmd_read_pio()
341 s->error = MC_ERR | (UNIT_ATTENTION << 4); in ide_atapi_cmd_check_status()
342 s->status = ERR_STAT; in ide_atapi_cmd_check_status()
343 s->nsector = 0; in ide_atapi_cmd_check_status()
344 ide_bus_set_irq(s->bus); in ide_atapi_cmd_check_status()
346 /* ATAPI DMA support */
354 if (ide_handle_rw_error(s, -ret, ide_dma_cmd_to_retry(s->dma_cmd))) { in ide_atapi_cmd_read_dma_cb()
355 if (s->bus->error_status) { in ide_atapi_cmd_read_dma_cb()
356 s->bus->dma->aiocb = NULL; in ide_atapi_cmd_read_dma_cb()
363 if (s->io_buffer_size > 0) { in ide_atapi_cmd_read_dma_cb()
365 * For a cdrom read sector command (s->lba != -1), in ide_atapi_cmd_read_dma_cb()
366 * adjust the lba for the next s->io_buffer_size chunk in ide_atapi_cmd_read_dma_cb()
367 * and dma the current chunk. in ide_atapi_cmd_read_dma_cb()
368 * For a command != read (s->lba == -1), just transfer in ide_atapi_cmd_read_dma_cb()
371 if (s->lba != -1) { in ide_atapi_cmd_read_dma_cb()
372 if (s->cd_sector_size == 2352) { in ide_atapi_cmd_read_dma_cb()
374 cd_data_to_raw(s->io_buffer, s->lba); in ide_atapi_cmd_read_dma_cb()
376 n = s->io_buffer_size >> 11; in ide_atapi_cmd_read_dma_cb()
378 s->lba += n; in ide_atapi_cmd_read_dma_cb()
380 s->packet_transfer_size -= s->io_buffer_size; in ide_atapi_cmd_read_dma_cb()
381 if (s->bus->dma->ops->rw_buf(s->bus->dma, 1) == 0) in ide_atapi_cmd_read_dma_cb()
385 if (s->packet_transfer_size <= 0) { in ide_atapi_cmd_read_dma_cb()
386 s->status = READY_STAT | SEEK_STAT; in ide_atapi_cmd_read_dma_cb()
387 s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD; in ide_atapi_cmd_read_dma_cb()
388 ide_bus_set_irq(s->bus); in ide_atapi_cmd_read_dma_cb()
392 s->io_buffer_index = 0; in ide_atapi_cmd_read_dma_cb()
393 if (s->cd_sector_size == 2352) { in ide_atapi_cmd_read_dma_cb()
395 s->io_buffer_size = s->cd_sector_size; in ide_atapi_cmd_read_dma_cb()
398 n = s->packet_transfer_size >> 11; in ide_atapi_cmd_read_dma_cb()
401 s->io_buffer_size = n * 2048; in ide_atapi_cmd_read_dma_cb()
404 trace_ide_atapi_cmd_read_dma_cb_aio(s, s->lba, n); in ide_atapi_cmd_read_dma_cb()
405 qemu_iovec_init_buf(&s->bus->dma->qiov, s->io_buffer + data_offset, in ide_atapi_cmd_read_dma_cb()
408 s->bus->dma->aiocb = ide_buffered_readv(s, (int64_t)s->lba << 2, in ide_atapi_cmd_read_dma_cb()
409 &s->bus->dma->qiov, n * 4, in ide_atapi_cmd_read_dma_cb()
415 block_acct_failed(blk_get_stats(s->blk), &s->acct); in ide_atapi_cmd_read_dma_cb()
417 block_acct_done(blk_get_stats(s->blk), &s->acct); in ide_atapi_cmd_read_dma_cb()
422 /* start a CD-ROM read command with DMA */
423 /* XXX: test if DMA is available */
427 assert(0 <= lba && lba < (s->nb_sectors >> 2)); in ide_atapi_cmd_read_dma()
429 s->lba = lba; in ide_atapi_cmd_read_dma()
430 s->packet_transfer_size = nb_sectors * sector_size; in ide_atapi_cmd_read_dma()
431 s->io_buffer_size = 0; in ide_atapi_cmd_read_dma()
432 s->cd_sector_size = sector_size; in ide_atapi_cmd_read_dma()
434 block_acct_start(blk_get_stats(s->blk), &s->acct, s->packet_transfer_size, in ide_atapi_cmd_read_dma()
438 s->status = READY_STAT | SEEK_STAT | DRQ_STAT | BUSY_STAT; in ide_atapi_cmd_read_dma()
445 trace_ide_atapi_cmd_read(s, s->atapi_dma ? "dma" : "pio", in ide_atapi_cmd_read()
447 if (s->atapi_dma) { in ide_atapi_cmd_read()
457 * At this point we can just re-evaluate the packet command and start over. in ide_atapi_dma_restart()
458 * The presence of ->dma_cb callback in the pre_save ensures that the packet in ide_atapi_dma_restart()
461 s->unit = s->bus->retry_unit; in ide_atapi_dma_restart()
462 s->bus->dma->ops->restart_dma(s->bus->dma); in ide_atapi_dma_restart()
492 return -ASC_INV_FIELD_IN_CMD_PACKET; in ide_dvd_read_structure()
494 total_sectors = s->nb_sectors >> 2; in ide_dvd_read_structure()
496 return -ASC_MEDIUM_NOT_PRESENT; in ide_dvd_read_structure()
499 buf[4] = 1; /* DVD-ROM, part version 1 */ in ide_dvd_read_structure()
501 buf[6] = 1; /* one layer, read-only (per MMC-2 spec) */ in ide_dvd_read_structure()
506 stl_be_p(buf + 12, total_sectors - 1); /* end sector */ in ide_dvd_read_structure()
507 stl_be_p(buf + 16, total_sectors - 1); /* l0 end sector */ in ide_dvd_read_structure()
526 case 0x03: /* BCA information - invalid field for no BCA info */ in ide_dvd_read_structure()
527 return -ASC_INV_FIELD_IN_CMD_PACKET; in ide_dvd_read_structure()
564 default: /* TODO: formats beyond DVD-ROM requires */ in ide_dvd_read_structure()
565 return -ASC_INV_FIELD_IN_CMD_PACKET; in ide_dvd_read_structure()
575 if (s->tray_open) { in event_status_media()
577 } else if (blk_is_inserted(s->blk)) { in event_status_media()
584 if (s->events.new_media) { in event_status_media()
586 s->events.new_media = false; in event_status_media()
587 } else if (s->events.eject_request) { in event_status_media()
589 s->events.eject_request = false; in event_status_media()
610 if (s->atapi_dma || atapi_byte_count_limit(s)) { in validate_bcl()
645 max_len = be16_to_cpu(gesn_cdb->len); in cmd_get_event_status_notification()
648 if (!(gesn_cdb->polled & 0x01)) { /* asynchronous mode */ in cmd_get_event_status_notification()
660 * We currently only support requests of the 'media' type. in cmd_get_event_status_notification()
661 * Notification class requests and supported event classes are bitmasks, in cmd_get_event_status_notification()
665 gesn_event_header->supported_events = 1 << GESN_MEDIA; in cmd_get_event_status_notification()
672 gesn_event_header->notification_class = 0; in cmd_get_event_status_notification()
675 * Responses to requests are to be based on request priority. The in cmd_get_event_status_notification()
679 if (gesn_cdb->class & (1 << GESN_MEDIA)) { in cmd_get_event_status_notification()
680 gesn_event_header->notification_class |= GESN_MEDIA; in cmd_get_event_status_notification()
683 gesn_event_header->notification_class = 0x80; /* No event available */ in cmd_get_event_status_notification()
686 gesn_event_header->len = cpu_to_be16(used_len in cmd_get_event_status_notification()
687 - sizeof(*gesn_event_header)); in cmd_get_event_status_notification()
697 buf[2] = s->sense_key; in cmd_request_sense()
699 buf[12] = s->asc; in cmd_request_sense()
701 if (s->sense_key == UNIT_ATTENTION) { in cmd_request_sense()
702 s->sense_key = NO_SENSE; in cmd_request_sense()
723 buf[idx++] = 0x05; /* CD-ROM */ in cmd_inquiry()
752 padstr8(buf + idx, 20, s->drive_serial_str); in cmd_inquiry()
766 padstr8(buf + idx, 40, s->drive_model_str); in cmd_inquiry()
768 padstr8(buf + idx, 20, s->drive_serial_str); in cmd_inquiry()
772 if (s->wwn && (idx + 12 <= max_len)) { in cmd_inquiry()
778 stq_be_p(&buf[idx], s->wwn); in cmd_inquiry()
784 /* SPC-3, revision 23 sec. 6.4 */ in cmd_inquiry()
793 buf[0] = 0x05; /* CD-ROM */ in cmd_inquiry()
796 buf[3] = 0x21; /* ATAPI-2 (XXX: put ATAPI-4 ?) */ in cmd_inquiry()
802 padstr8(buf + 16, 16, "QEMU DVD-ROM"); in cmd_inquiry()
803 padstr8(buf + 32, 4, s->version); in cmd_inquiry()
808 buf[size_idx] = idx - preamble_len; in cmd_inquiry()
855 stl_be_p(buf, len - 4); /* data length */ in cmd_get_configuration()
873 stw_be_p(&buf[0], 16 - 2); in cmd_mode_sense()
882 buf[9] = 16 - 10; in cmd_mode_sense()
892 stw_be_p(&buf[0], 24 - 2); in cmd_mode_sense()
901 buf[9] = 24 - 10; in cmd_mode_sense()
911 stw_be_p(&buf[0], 30 - 2); in cmd_mode_sense()
920 buf[9] = 30 - 10; in cmd_mode_sense()
929 if (s->tray_locked) { in cmd_mode_sense()
975 s->tray_locked = buf[4] & 1; in cmd_prevent_allow_medium_removal()
976 blk_lock_medium(s->blk, buf[4] & 1); in cmd_prevent_allow_medium_removal()
985 uint64_t total_sectors = s->nb_sectors >> 2; in cmd_read()
998 if (lba >= total_sectors || lba + nb_sectors - 1 >= total_sectors) { in cmd_read()
1011 uint64_t total_sectors = s->nb_sectors >> 2; in cmd_read_cd()
1020 if (lba >= total_sectors || lba + nb_sectors - 1 >= total_sectors) { in cmd_read_cd()
1056 uint64_t total_sectors = s->nb_sectors >> 2; in cmd_seek()
1081 if (!start && !s->tray_open && s->tray_locked) { in cmd_start_stop_unit()
1082 sense = blk_is_inserted(s->blk) in cmd_start_stop_unit()
1088 if (s->tray_open != !start) { in cmd_start_stop_unit()
1089 blk_eject(s->blk, !start); in cmd_start_stop_unit()
1090 s->tray_open = !start; in cmd_start_stop_unit()
1115 uint64_t total_sectors = s->nb_sectors >> 2; in cmd_read_toc_pma_atip()
1152 uint64_t total_sectors = s->nb_sectors >> 2; in cmd_read_cdvd_capacity()
1155 stl_be_p(buf, total_sectors - 1); in cmd_read_cdvd_capacity()
1165 /* Types 1/2 are only defined for Blu-Ray. */ in cmd_read_disc_information()
1180 buf[8] = 0x00; /* CD-ROM or DVD-ROM */ in cmd_read_disc_information()
1181 /* 9-10-11: most significant byte corresponding bytes 4-5-6 */ in cmd_read_disc_information()
1182 /* 12-23: not meaningful for CD-ROM or DVD-ROM */ in cmd_read_disc_information()
1183 /* 24-31: disc bar code */ in cmd_read_disc_information()
1221 ide_atapi_cmd_error(s, ILLEGAL_REQUEST, -ret); in cmd_read_dvd_structure()
1252 * unit attention condition. (See MMC-5, section 4.1.6.1)
1258 * Otherwise they report the Not Ready Condition. (See MMC-5, section
1267 * See ATA8-ACS3 "7.21.5 Byte Count Limit"
1307 uint8_t *buf = s->io_buffer; in ide_atapi_cmd()
1308 const struct AtapiCmd *cmd = &atapi_cmd_table[s->io_buffer[0]]; in ide_atapi_cmd()
1310 trace_ide_atapi_cmd(s, s->io_buffer[0]); in ide_atapi_cmd()
1315 trace_ide_atapi_cmd_packet(s, s->lcyl | (s->hcyl << 8), str->str); in ide_atapi_cmd()
1324 if (s->sense_key == UNIT_ATTENTION && !(cmd->flags & ALLOW_UA)) { in ide_atapi_cmd()
1335 if (!(cmd->flags & ALLOW_UA) && in ide_atapi_cmd()
1336 !s->tray_open && blk_is_inserted(s->blk) && s->cdrom_changed) { in ide_atapi_cmd()
1338 if (s->cdrom_changed == 1) { in ide_atapi_cmd()
1340 s->cdrom_changed = 2; in ide_atapi_cmd()
1343 s->cdrom_changed = 0; in ide_atapi_cmd()
1350 if ((cmd->flags & CHECK_READY) && in ide_atapi_cmd()
1351 (!media_present(s) || !blk_is_inserted(s->blk))) in ide_atapi_cmd()
1358 * If this is a data-transferring PIO command and BCL is 0, in ide_atapi_cmd()
1361 if (cmd->handler && !(cmd->flags & (NONDATA | CONDDATA))) { in ide_atapi_cmd()
1368 if (cmd->handler) { in ide_atapi_cmd()
1369 cmd->handler(s, buf); in ide_atapi_cmd()