diff options
Diffstat (limited to 'hw/ide/core.c')
| -rw-r--r-- | hw/ide/core.c | 1067 |
1 files changed, 11 insertions, 1056 deletions
diff --git a/hw/ide/core.c b/hw/ide/core.c index f028ddb495..90f553b69b 100644 --- a/hw/ide/core.c +++ b/hw/ide/core.c @@ -25,7 +25,6 @@ #include <hw/hw.h> #include <hw/pc.h> #include <hw/pci.h> -#include <hw/scsi.h> #include "qemu-error.h" #include "qemu-timer.h" #include "sysemu.h" @@ -56,23 +55,6 @@ static const int smart_attributes[][12] = { { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00} }; -/* XXX: DVDs that could fit on a CD will be reported as a CD */ -static inline int media_present(IDEState *s) -{ - return (s->nb_sectors > 0); -} - -static inline int media_is_dvd(IDEState *s) -{ - return (media_present(s) && s->nb_sectors > CD_MAX_SECTORS); -} - -static inline int media_is_cd(IDEState *s) -{ - return (media_present(s) && s->nb_sectors <= CD_MAX_SECTORS); -} - -static void ide_atapi_cmd_read_dma_cb(void *opaque, int ret); static int ide_handle_rw_error(IDEState *s, int error, int op); static void padstr(char *str, const char *src, int len) @@ -87,17 +69,6 @@ static void padstr(char *str, const char *src, int len) } } -static void padstr8(uint8_t *buf, int buf_size, const char *src) -{ - int i; - for(i = 0; i < buf_size; i++) { - if (*src) - buf[i] = *src++; - else - buf[i] = ' '; - } -} - static void put_le16(uint16_t *p, unsigned int v) { *p = cpu_to_le16(v); @@ -335,8 +306,8 @@ static inline void ide_abort_command(IDEState *s) } /* prepare data transfer and tell what to do after */ -static void ide_transfer_start(IDEState *s, uint8_t *buf, int size, - EndTransferFunc *end_transfer_func) +void ide_transfer_start(IDEState *s, uint8_t *buf, int size, + EndTransferFunc *end_transfer_func) { s->end_transfer_func = end_transfer_func; s->data_ptr = buf; @@ -347,7 +318,7 @@ static void ide_transfer_start(IDEState *s, uint8_t *buf, int size, s->bus->dma->ops->start_transfer(s->bus->dma); } -static void ide_transfer_stop(IDEState *s) +void ide_transfer_stop(IDEState *s) { s->end_transfer_func = ide_transfer_stop; s->data_ptr = s->io_buffer; @@ -447,7 +418,7 @@ static void dma_buf_commit(IDEState *s, int is_write) qemu_sglist_destroy(&s->sg); } -static void ide_set_inactive(IDEState *s) +void ide_set_inactive(IDEState *s) { s->bus->dma->aiocb = NULL; s->bus->dma->ops->set_inactive(s->bus->dma); @@ -617,38 +588,6 @@ void ide_sector_write(IDEState *s) } } -void ide_atapi_cmd_ok(IDEState *s) -{ - s->error = 0; - s->status = READY_STAT | SEEK_STAT; - s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD; - ide_set_irq(s->bus); -} - -void ide_atapi_cmd_error(IDEState *s, int sense_key, int asc) -{ -#ifdef DEBUG_IDE_ATAPI - printf("atapi_cmd_error: sense=0x%x asc=0x%x\n", sense_key, asc); -#endif - s->error = sense_key << 4; - s->status = READY_STAT | ERR_STAT; - s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD; - s->sense_key = sense_key; - s->asc = asc; - ide_set_irq(s->bus); -} - -static void ide_atapi_cmd_check_status(IDEState *s) -{ -#ifdef DEBUG_IDE_ATAPI - printf("atapi_cmd_check_status\n"); -#endif - s->error = MC_ERR | (SENSE_UNIT_ATTENTION << 4); - s->status = ERR_STAT; - s->nsector = 0; - ide_set_irq(s->bus); -} - static void ide_flush_cb(void *opaque, int ret) { IDEState *s = opaque; @@ -679,995 +618,6 @@ void ide_flush_cache(IDEState *s) } } -static inline void cpu_to_ube16(uint8_t *buf, int val) -{ - buf[0] = val >> 8; - buf[1] = val & 0xff; -} - -static inline void cpu_to_ube32(uint8_t *buf, unsigned int val) -{ - buf[0] = val >> 24; - buf[1] = val >> 16; - buf[2] = val >> 8; - buf[3] = val & 0xff; -} - -static inline int ube16_to_cpu(const uint8_t *buf) -{ - return (buf[0] << 8) | buf[1]; -} - -static inline int ube32_to_cpu(const uint8_t *buf) -{ - return (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3]; -} - -static void lba_to_msf(uint8_t *buf, int lba) -{ - lba += 150; - buf[0] = (lba / 75) / 60; - buf[1] = (lba / 75) % 60; - buf[2] = lba % 75; -} - -static void cd_data_to_raw(uint8_t *buf, int lba) -{ - /* sync bytes */ - buf[0] = 0x00; - memset(buf + 1, 0xff, 10); - buf[11] = 0x00; - buf += 12; - /* MSF */ - lba_to_msf(buf, lba); - buf[3] = 0x01; /* mode 1 data */ - buf += 4; - /* data */ - buf += 2048; - /* XXX: ECC not computed */ - memset(buf, 0, 288); -} - -static int cd_read_sector(BlockDriverState *bs, int lba, uint8_t *buf, - int sector_size) -{ - int ret; - - switch(sector_size) { - case 2048: - ret = bdrv_read(bs, (int64_t)lba << 2, buf, 4); - break; - case 2352: - ret = bdrv_read(bs, (int64_t)lba << 2, buf + 16, 4); - if (ret < 0) - return ret; - cd_data_to_raw(buf, lba); - break; - default: - ret = -EIO; - break; - } - return ret; -} - -void ide_atapi_io_error(IDEState *s, int ret) -{ - /* XXX: handle more errors */ - if (ret == -ENOMEDIUM) { - ide_atapi_cmd_error(s, SENSE_NOT_READY, - ASC_MEDIUM_NOT_PRESENT); - } else { - ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, - ASC_LOGICAL_BLOCK_OOR); - } -} - -/* The whole ATAPI transfer logic is handled in this function */ -static void ide_atapi_cmd_reply_end(IDEState *s) -{ - int byte_count_limit, size, ret; -#ifdef DEBUG_IDE_ATAPI - printf("reply: tx_size=%d elem_tx_size=%d index=%d\n", - s->packet_transfer_size, - s->elementary_transfer_size, - s->io_buffer_index); -#endif - if (s->packet_transfer_size <= 0) { - /* end of transfer */ - ide_transfer_stop(s); - s->status = READY_STAT | SEEK_STAT; - s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD; - ide_set_irq(s->bus); -#ifdef DEBUG_IDE_ATAPI - printf("status=0x%x\n", s->status); -#endif - } else { - /* see if a new sector must be read */ - if (s->lba != -1 && s->io_buffer_index >= s->cd_sector_size) { - ret = cd_read_sector(s->bs, s->lba, s->io_buffer, s->cd_sector_size); - if (ret < 0) { - ide_transfer_stop(s); - ide_atapi_io_error(s, ret); - return; - } - s->lba++; - s->io_buffer_index = 0; - } - if (s->elementary_transfer_size > 0) { - /* there are some data left to transmit in this elementary - transfer */ - size = s->cd_sector_size - s->io_buffer_index; - if (size > s->elementary_transfer_size) - size = s->elementary_transfer_size; - s->packet_transfer_size -= size; - s->elementary_transfer_size -= size; - s->io_buffer_index += size; - ide_transfer_start(s, s->io_buffer + s->io_buffer_index - size, - size, ide_atapi_cmd_reply_end); - } else { - /* a new transfer is needed */ - s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO; - byte_count_limit = s->lcyl | (s->hcyl << 8); -#ifdef DEBUG_IDE_ATAPI - printf("byte_count_limit=%d\n", byte_count_limit); -#endif - if (byte_count_limit == 0xffff) - byte_count_limit--; - size = s->packet_transfer_size; - if (size > byte_count_limit) { - /* byte count limit must be even if this case */ - if (byte_count_limit & 1) - byte_count_limit--; - size = byte_count_limit; - } - s->lcyl = size; - s->hcyl = size >> 8; - s->elementary_transfer_size = size; - /* we cannot transmit more than one sector at a time */ - if (s->lba != -1) { - if (size > (s->cd_sector_size - s->io_buffer_index)) - size = (s->cd_sector_size - s->io_buffer_index); - } - s->packet_transfer_size -= size; - s->elementary_transfer_size -= size; - s->io_buffer_index += size; - ide_transfer_start(s, s->io_buffer + s->io_buffer_index - size, - size, ide_atapi_cmd_reply_end); - ide_set_irq(s->bus); -#ifdef DEBUG_IDE_ATAPI - printf("status=0x%x\n", s->status); -#endif - } - } -} - -/* send a reply of 'size' bytes in s->io_buffer to an ATAPI command */ -static void ide_atapi_cmd_reply(IDEState *s, int size, int max_size) -{ - if (size > max_size) - size = max_size; - s->lba = -1; /* no sector read */ - s->packet_transfer_size = size; - s->io_buffer_size = size; /* dma: send the reply data as one chunk */ - s->elementary_transfer_size = 0; - s->io_buffer_index = 0; - - if (s->atapi_dma) { - s->status = READY_STAT | SEEK_STAT | DRQ_STAT; - s->bus->dma->ops->start_dma(s->bus->dma, s, - ide_atapi_cmd_read_dma_cb); - } else { - s->status = READY_STAT | SEEK_STAT; - ide_atapi_cmd_reply_end(s); - } -} - -/* start a CD-CDROM read command */ -static void ide_atapi_cmd_read_pio(IDEState *s, int lba, int nb_sectors, - int sector_size) -{ - s->lba = lba; - s->packet_transfer_size = nb_sectors * sector_size; - s->elementary_transfer_size = 0; - s->io_buffer_index = sector_size; - s->cd_sector_size = sector_size; - - s->status = READY_STAT | SEEK_STAT; - ide_atapi_cmd_reply_end(s); -} - -/* ATAPI DMA support */ - -/* XXX: handle read errors */ -static void ide_atapi_cmd_read_dma_cb(void *opaque, int ret) -{ - IDEState *s = opaque; - int data_offset, n; - - if (ret < 0) { - ide_atapi_io_error(s, ret); - goto eot; - } - - if (s->io_buffer_size > 0) { - /* - * For a cdrom read sector command (s->lba != -1), - * adjust the lba for the next s->io_buffer_size chunk - * and dma the current chunk. - * For a command != read (s->lba == -1), just transfer - * the reply data. - */ - if (s->lba != -1) { - if (s->cd_sector_size == 2352) { - n = 1; - cd_data_to_raw(s->io_buffer, s->lba); - } else { - n = s->io_buffer_size >> 11; - } - s->lba += n; - } - s->packet_transfer_size -= s->io_buffer_size; - if (s->bus->dma->ops->rw_buf(s->bus->dma, 1) == 0) - goto eot; - } - - if (s->packet_transfer_size <= 0) { - s->status = READY_STAT | SEEK_STAT; - s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD; - ide_set_irq(s->bus); - eot: - s->bus->dma->ops->add_status(s->bus->dma, BM_STATUS_INT); - ide_set_inactive(s); - return; - } - - s->io_buffer_index = 0; - if (s->cd_sector_size == 2352) { - n = 1; - s->io_buffer_size = s->cd_sector_size; - data_offset = 16; - } else { - n = s->packet_transfer_size >> 11; - if (n > (IDE_DMA_BUF_SECTORS / 4)) - n = (IDE_DMA_BUF_SECTORS / 4); - s->io_buffer_size = n * 2048; - data_offset = 0; - } -#ifdef DEBUG_AIO - printf("aio_read_cd: lba=%u n=%d\n", s->lba, n); -#endif - s->bus->dma->iov.iov_base = (void *)(s->io_buffer + data_offset); - s->bus->dma->iov.iov_len = n * 4 * 512; - qemu_iovec_init_external(&s->bus->dma->qiov, &s->bus->dma->iov, 1); - s->bus->dma->aiocb = bdrv_aio_readv(s->bs, (int64_t)s->lba << 2, - &s->bus->dma->qiov, n * 4, - ide_atapi_cmd_read_dma_cb, s); - if (!s->bus->dma->aiocb) { - /* Note: media not present is the most likely case */ - ide_atapi_cmd_error(s, SENSE_NOT_READY, - ASC_MEDIUM_NOT_PRESENT); - goto eot; - } -} - -/* start a CD-CDROM read command with DMA */ -/* XXX: test if DMA is available */ -static void ide_atapi_cmd_read_dma(IDEState *s, int lba, int nb_sectors, - int sector_size) -{ - s->lba = lba; - s->packet_transfer_size = nb_sectors * sector_size; - s->io_buffer_index = 0; - s->io_buffer_size = 0; - s->cd_sector_size = sector_size; - - /* XXX: check if BUSY_STAT should be set */ - s->status = READY_STAT | SEEK_STAT | DRQ_STAT | BUSY_STAT; - s->bus->dma->ops->start_dma(s->bus->dma, s, - ide_atapi_cmd_read_dma_cb); -} - -static void ide_atapi_cmd_read(IDEState *s, int lba, int nb_sectors, - int sector_size) -{ -#ifdef DEBUG_IDE_ATAPI - printf("read %s: LBA=%d nb_sectors=%d\n", s->atapi_dma ? "dma" : "pio", - lba, nb_sectors); -#endif - if (s->atapi_dma) { - ide_atapi_cmd_read_dma(s, lba, nb_sectors, sector_size); - } else { - ide_atapi_cmd_read_pio(s, lba, nb_sectors, sector_size); - } -} - -static inline uint8_t ide_atapi_set_profile(uint8_t *buf, uint8_t *index, - uint16_t profile) -{ - uint8_t *buf_profile = buf + 12; /* start of profiles */ - - buf_profile += ((*index) * 4); /* start of indexed profile */ - cpu_to_ube16 (buf_profile, profile); - buf_profile[2] = ((buf_profile[0] == buf[6]) && (buf_profile[1] == buf[7])); - - /* each profile adds 4 bytes to the response */ - (*index)++; - buf[11] += 4; /* Additional Length */ - - return 4; -} - -static int ide_dvd_read_structure(IDEState *s, int format, - const uint8_t *packet, uint8_t *buf) -{ - switch (format) { - case 0x0: /* Physical format information */ - { - int layer = packet[6]; - uint64_t total_sectors; - - if (layer != 0) - return -ASC_INV_FIELD_IN_CMD_PACKET; - - bdrv_get_geometry(s->bs, &total_sectors); - total_sectors >>= 2; - if (total_sectors == 0) - return -ASC_MEDIUM_NOT_PRESENT; - - buf[4] = 1; /* DVD-ROM, part version 1 */ - buf[5] = 0xf; /* 120mm disc, minimum rate unspecified */ - buf[6] = 1; /* one layer, read-only (per MMC-2 spec) */ - buf[7] = 0; /* default densities */ - - /* FIXME: 0x30000 per spec? */ - cpu_to_ube32(buf + 8, 0); /* start sector */ - cpu_to_ube32(buf + 12, total_sectors - 1); /* end sector */ - cpu_to_ube32(buf + 16, total_sectors - 1); /* l0 end sector */ - - /* Size of buffer, not including 2 byte size field */ - cpu_to_be16wu((uint16_t *)buf, 2048 + 2); - - /* 2k data + 4 byte header */ - return (2048 + 4); - } - - case 0x01: /* DVD copyright information */ - buf[4] = 0; /* no copyright data */ - buf[5] = 0; /* no region restrictions */ - - /* Size of buffer, not including 2 byte size field */ - cpu_to_be16wu((uint16_t *)buf, 4 + 2); - - /* 4 byte header + 4 byte data */ - return (4 + 4); - - case 0x03: /* BCA information - invalid field for no BCA info */ - return -ASC_INV_FIELD_IN_CMD_PACKET; - - case 0x04: /* DVD disc manufacturing information */ - /* Size of buffer, not including 2 byte size field */ - cpu_to_be16wu((uint16_t *)buf, 2048 + 2); - - /* 2k data + 4 byte header */ - return (2048 + 4); - - case 0xff: - /* - * This lists all the command capabilities above. Add new ones - * in order and update the length and buffer return values. - */ - - buf[4] = 0x00; /* Physical format */ - buf[5] = 0x40; /* Not writable, is readable */ - cpu_to_be16wu((uint16_t *)(buf + 6), 2048 + 4); - - buf[8] = 0x01; /* Copyright info */ - buf[9] = 0x40; /* Not writable, is readable */ - cpu_to_be16wu((uint16_t *)(buf + 10), 4 + 4); - - buf[12] = 0x03; /* BCA info */ - buf[13] = 0x40; /* Not writable, is readable */ - cpu_to_be16wu((uint16_t *)(buf + 14), 188 + 4); - - buf[16] = 0x04; /* Manufacturing info */ - buf[17] = 0x40; /* Not writable, is readable */ - cpu_to_be16wu((uint16_t *)(buf + 18), 2048 + 4); - - /* Size of buffer, not including 2 byte size field */ - cpu_to_be16wu((uint16_t *)buf, 16 + 2); - - /* data written + 4 byte header */ - return (16 + 4); - - default: /* TODO: formats beyond DVD-ROM requires */ - return -ASC_INV_FIELD_IN_CMD_PACKET; - } -} - -static unsigned int event_status_media(IDEState *s, - uint8_t *buf) -{ - enum media_event_code { - MEC_NO_CHANGE = 0, /* Status unchanged */ - MEC_EJECT_REQUESTED, /* received a request from user to eject */ - MEC_NEW_MEDIA, /* new media inserted and ready for access */ - MEC_MEDIA_REMOVAL, /* only for media changers */ - MEC_MEDIA_CHANGED, /* only for media changers */ - MEC_BG_FORMAT_COMPLETED, /* MRW or DVD+RW b/g format completed */ - MEC_BG_FORMAT_RESTARTED, /* MRW or DVD+RW b/g format restarted */ - }; - enum media_status { - MS_TRAY_OPEN = 1, - MS_MEDIA_PRESENT = 2, - }; - uint8_t event_code, media_status; - - media_status = 0; - if (s->bs->tray_open) { - media_status = MS_TRAY_OPEN; - } else if (bdrv_is_inserted(s->bs)) { - media_status = MS_MEDIA_PRESENT; - } - - /* Event notification descriptor */ - event_code = MEC_NO_CHANGE; - if (media_status != MS_TRAY_OPEN && s->events.new_media) { - event_code = MEC_NEW_MEDIA; - s->events.new_media = false; - } - - buf[4] = event_code; - buf[5] = media_status; - - /* These fields are reserved, just clear them. */ - buf[6] = 0; - buf[7] = 0; - - return 8; /* We wrote to 4 extra bytes from the header */ -} - -static void handle_get_event_status_notification(IDEState *s, - uint8_t *buf, - const uint8_t *packet) -{ - struct { - uint8_t opcode; - uint8_t polled; /* lsb bit is polled; others are reserved */ - uint8_t reserved2[2]; - uint8_t class; - uint8_t reserved3[2]; - uint16_t len; - uint8_t control; - } __attribute__((packed)) *gesn_cdb; - - struct { - uint16_t len; - uint8_t notification_class; - uint8_t supported_events; - } __attribute((packed)) *gesn_event_header; - - enum notification_class_request_type { - NCR_RESERVED1 = 1 << 0, - NCR_OPERATIONAL_CHANGE = 1 << 1, - NCR_POWER_MANAGEMENT = 1 << 2, - NCR_EXTERNAL_REQUEST = 1 << 3, - NCR_MEDIA = 1 << 4, - NCR_MULTI_HOST = 1 << 5, - NCR_DEVICE_BUSY = 1 << 6, - NCR_RESERVED2 = 1 << 7, - }; - enum event_notification_class_field { - ENC_NO_EVENTS = 0, - ENC_OPERATIONAL_CHANGE, - ENC_POWER_MANAGEMENT, - ENC_EXTERNAL_REQUEST, - ENC_MEDIA, - ENC_MULTIPLE_HOSTS, - ENC_DEVICE_BUSY, - ENC_RESERVED, - }; - unsigned int max_len, used_len; - - gesn_cdb = (void *)packet; - gesn_event_header = (void *)buf; - - max_len = be16_to_cpu(gesn_cdb->len); - - /* It is fine by the MMC spec to not support async mode operations */ - if (!(gesn_cdb->polled & 0x01)) { /* asynchronous mode */ - /* Only polling is supported, asynchronous mode is not. */ - ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, - ASC_INV_FIELD_IN_CMD_PACKET); - return; - } - - /* polling mode operation */ - - /* - * These are the supported events. - * - * We currently only support requests of the 'media' type. - */ - gesn_event_header->supported_events = NCR_MEDIA; - - /* - * We use |= below to set the class field; other bits in this byte - * are reserved now but this is useful to do if we have to use the - * reserved fields later. - */ - gesn_event_header->notification_class = 0; - - /* - * Responses to requests are to be based on request priority. The - * notification_class_request_type enum above specifies the - * priority: upper elements are higher prio than lower ones. - */ - if (gesn_cdb->class & NCR_MEDIA) { - gesn_event_header->notification_class |= ENC_MEDIA; - used_len = event_status_media(s, buf); - } else { - gesn_event_header->notification_class = 0x80; /* No event available */ - used_len = sizeof(*gesn_event_header); - } - gesn_event_header->len = cpu_to_be16(used_len - - sizeof(*gesn_event_header)); - ide_atapi_cmd_reply(s, used_len, max_len); -} - -static void ide_atapi_cmd(IDEState *s) -{ - const uint8_t *packet; - uint8_t *buf; - int max_len; - - packet = s->io_buffer; - buf = s->io_buffer; -#ifdef DEBUG_IDE_ATAPI - { - int i; - printf("ATAPI limit=0x%x packet:", s->lcyl | (s->hcyl << 8)); - for(i = 0; i < ATAPI_PACKET_SIZE; i++) { - printf(" %02x", packet[i]); - } - printf("\n"); - } -#endif - /* - * If there's a UNIT_ATTENTION condition pending, only - * REQUEST_SENSE, INQUIRY, GET_CONFIGURATION and - * GET_EVENT_STATUS_NOTIFICATION commands are allowed to complete. - * MMC-5, section 4.1.6.1 lists only these commands being allowed - * to complete, with other commands getting a CHECK condition - * response unless a higher priority status, defined by the drive - * here, is pending. - */ - if (s->sense_key == SENSE_UNIT_ATTENTION && - s->io_buffer[0] != GPCMD_REQUEST_SENSE && - s->io_buffer[0] != GPCMD_INQUIRY && - s->io_buffer[0] != GPCMD_GET_EVENT_STATUS_NOTIFICATION) { - ide_atapi_cmd_check_status(s); - return; - } - switch(s->io_buffer[0]) { - case GPCMD_TEST_UNIT_READY: - if (bdrv_is_inserted(s->bs) && !s->cdrom_changed) { - ide_atapi_cmd_ok(s); - } else { - s->cdrom_changed = 0; - ide_atapi_cmd_error(s, SENSE_NOT_READY, - ASC_MEDIUM_NOT_PRESENT); - } - break; - case GPCMD_MODE_SENSE_6: - case GPCMD_MODE_SENSE_10: - { - int action, code; - if (packet[0] == GPCMD_MODE_SENSE_10) - max_len = ube16_to_cpu(packet + 7); - else - max_len = packet[4]; - action = packet[2] >> 6; - code = packet[2] & 0x3f; - switch(action) { - case 0: /* current values */ - switch(code) { - case GPMODE_R_W_ERROR_PAGE: /* error recovery */ - cpu_to_ube16(&buf[0], 16 + 6); - buf[2] = 0x70; - buf[3] = 0; - buf[4] = 0; - buf[5] = 0; - buf[6] = 0; - buf[7] = 0; - - buf[8] = 0x01; - buf[9] = 0x06; - buf[10] = 0x00; - buf[11] = 0x05; - buf[12] = 0x00; - buf[13] = 0x00; - buf[14] = 0x00; - buf[15] = 0x00; - ide_atapi_cmd_reply(s, 16, max_len); - break; - case GPMODE_AUDIO_CTL_PAGE: - cpu_to_ube16(&buf[0], 24 + 6); - buf[2] = 0x70; - buf[3] = 0; - buf[4] = 0; - buf[5] = 0; - buf[6] = 0; - buf[7] = 0; - - /* Fill with CDROM audio volume */ - buf[17] = 0; - buf[19] = 0; - buf[21] = 0; - buf[23] = 0; - - ide_atapi_cmd_reply(s, 24, max_len); - break; - case GPMODE_CAPABILITIES_PAGE: - cpu_to_ube16(&buf[0], 28 + 6); - buf[2] = 0x70; - buf[3] = 0; - buf[4] = 0; - buf[5] = 0; - buf[6] = 0; - buf[7] = 0; - - buf[8] = 0x2a; - buf[9] = 0x12; - buf[10] = 0x00; - buf[11] = 0x00; - - /* Claim PLAY_AUDIO capability (0x01) since some Linux - code checks for this to automount media. */ - buf[12] = 0x71; - buf[13] = 3 << 5; - buf[14] = (1 << 0) | (1 << 3) | (1 << 5); - if (bdrv_is_locked(s->bs)) - buf[6] |= 1 << 1; - buf[15] = 0x00; - cpu_to_ube16(&buf[16], 706); - buf[18] = 0; - buf[19] = 2; - cpu_to_ube16(&buf[20], 512); - cpu_to_ube16(&buf[22], 706); - buf[24] = 0; - buf[25] = 0; - buf[26] = 0; - buf[27] = 0; - ide_atapi_cmd_reply(s, 28, max_len); - break; - default: - goto error_cmd; - } - break; - case 1: /* changeable values */ - goto error_cmd; - case 2: /* default values */ - goto error_cmd; - default: - case 3: /* saved values */ - ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, - ASC_SAVING_PARAMETERS_NOT_SUPPORTED); - break; - } - } - break; - case GPCMD_REQUEST_SENSE: - max_len = packet[4]; - memset(buf, 0, 18); - buf[0] = 0x70 | (1 << 7); - buf[2] = s->sense_key; - buf[7] = 10; - buf[12] = s->asc; - if (s->sense_key == SENSE_UNIT_ATTENTION) - s->sense_key = SENSE_NONE; - ide_atapi_cmd_reply(s, 18, max_len); - break; - case GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL: - bdrv_set_locked(s->bs, packet[4] & 1); - ide_atapi_cmd_ok(s); - break; - case GPCMD_READ_10: - case GPCMD_READ_12: - { - int nb_sectors, lba; - - if (packet[0] == GPCMD_READ_10) - nb_sectors = ube16_to_cpu(packet + 7); - else - nb_sectors = ube32_to_cpu(packet + 6); - lba = ube32_to_cpu(packet + 2); - if (nb_sectors == 0) { - ide_atapi_cmd_ok(s); - break; - } - ide_atapi_cmd_read(s, lba, nb_sectors, 2048); - } - break; - case GPCMD_READ_CD: - { - int nb_sectors, lba, transfer_request; - - nb_sectors = (packet[6] << 16) | (packet[7] << 8) | packet[8]; - lba = ube32_to_cpu(packet + 2); - if (nb_sectors == 0) { - ide_atapi_cmd_ok(s); - break; - } - transfer_request = packet[9]; - switch(transfer_request & 0xf8) { - case 0x00: - /* nothing */ - ide_atapi_cmd_ok(s); - break; - case 0x10: - /* normal read */ - ide_atapi_cmd_read(s, lba, nb_sectors, 2048); - break; - case 0xf8: - /* read all data */ - ide_atapi_cmd_read(s, lba, nb_sectors, 2352); - break; - default: - ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, - ASC_INV_FIELD_IN_CMD_PACKET); - break; - } - } - break; - case GPCMD_SEEK: - { - unsigned int lba; - uint64_t total_sectors; - - bdrv_get_geometry(s->bs, &total_sectors); - total_sectors >>= 2; - if (total_sectors == 0) { - ide_atapi_cmd_error(s, SENSE_NOT_READY, - ASC_MEDIUM_NOT_PRESENT); - break; - } - lba = ube32_to_cpu(packet + 2); - if (lba >= total_sectors) { - ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, - ASC_LOGICAL_BLOCK_OOR); - break; - } - ide_atapi_cmd_ok(s); - } - break; - case GPCMD_START_STOP_UNIT: - { - int start, eject, sense, err = 0; - start = packet[4] & 1; - eject = (packet[4] >> 1) & 1; - - if (eject) { - err = bdrv_eject(s->bs, !start); - } - - switch (err) { - case 0: - ide_atapi_cmd_ok(s); - break; - case -EBUSY: - sense = SENSE_NOT_READY; - if (bdrv_is_inserted(s->bs)) { - sense = SENSE_ILLEGAL_REQUEST; - } - ide_atapi_cmd_error(s, sense, - ASC_MEDIA_REMOVAL_PREVENTED); - break; - default: - ide_atapi_cmd_error(s, SENSE_NOT_READY, - ASC_MEDIUM_NOT_PRESENT); - break; - } - } - break; - case GPCMD_MECHANISM_STATUS: - { - max_len = ube16_to_cpu(packet + 8); - cpu_to_ube16(buf, 0); - /* no current LBA */ - buf[2] = 0; - buf[3] = 0; - buf[4] = 0; - buf[5] = 1; - cpu_to_ube16(buf + 6, 0); - ide_atapi_cmd_reply(s, 8, max_len); - } - break; - case GPCMD_READ_TOC_PMA_ATIP: - { - int format, msf, start_track, len; - uint64_t total_sectors; - - bdrv_get_geometry(s->bs, &total_sectors); - total_sectors >>= 2; - if (total_sectors == 0) { - ide_atapi_cmd_error(s, SENSE_NOT_READY, - ASC_MEDIUM_NOT_PRESENT); - break; - } - max_len = ube16_to_cpu(packet + 7); - format = packet[9] >> 6; - msf = (packet[1] >> 1) & 1; - start_track = packet[6]; - switch(format) { - case 0: - len = cdrom_read_toc(total_sectors, buf, msf, start_track); - if (len < 0) - goto error_cmd; - ide_atapi_cmd_reply(s, len, max_len); - break; - case 1: - /* multi session : only a single session defined */ - memset(buf, 0, 12); - buf[1] = 0x0a; - buf[2] = 0x01; - buf[3] = 0x01; - ide_atapi_cmd_reply(s, 12, max_len); - break; - case 2: - len = cdrom_read_toc_raw(total_sectors, buf, msf, start_track); - if (len < 0) - goto error_cmd; - ide_atapi_cmd_reply(s, len, max_len); - break; - default: - error_cmd: - ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, - ASC_INV_FIELD_IN_CMD_PACKET); - break; - } - } - break; - case GPCMD_READ_CDVD_CAPACITY: - { - uint64_t total_sectors; - - bdrv_get_geometry(s->bs, &total_sectors); - total_sectors >>= 2; - if (total_sectors == 0) { - ide_atapi_cmd_error(s, SENSE_NOT_READY, - ASC_MEDIUM_NOT_PRESENT); - break; - } - /* NOTE: it is really the number of sectors minus 1 */ - cpu_to_ube32(buf, total_sectors - 1); - cpu_to_ube32(buf + 4, 2048); - ide_atapi_cmd_reply(s, 8, 8); - } - break; - case GPCMD_READ_DVD_STRUCTURE: - { - int media = packet[1]; - int format = packet[7]; - int ret; - - max_len = ube16_to_cpu(packet + 8); - - if (format < 0xff) { - if (media_is_cd(s)) { - ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, - ASC_INCOMPATIBLE_FORMAT); - break; - } else if (!media_present(s)) { - ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, - ASC_INV_FIELD_IN_CMD_PACKET); - break; - } - } - - memset(buf, 0, max_len > IDE_DMA_BUF_SECTORS * 512 + 4 ? - IDE_DMA_BUF_SECTORS * 512 + 4 : max_len); - - switch (format) { - case 0x00 ... 0x7f: - case 0xff: - if (media == 0) { - ret = ide_dvd_read_structure(s, format, packet, buf); - - if (ret < 0) - ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, -ret); - else - ide_atapi_cmd_reply(s, ret, max_len); - - break; - } - /* TODO: BD support, fall through for now */ - - /* Generic disk structures */ - case 0x80: /* TODO: AACS volume identifier */ - case 0x81: /* TODO: AACS media serial number */ - case 0x82: /* TODO: AACS media identifier */ - case 0x83: /* TODO: AACS media key block */ - case 0x90: /* TODO: List of recognized format layers */ - case 0xc0: /* TODO: Write protection status */ - default: - ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, - ASC_INV_FIELD_IN_CMD_PACKET); - break; - } - } - break; - case GPCMD_SET_SPEED: - ide_atapi_cmd_ok(s); - break; - case GPCMD_INQUIRY: - max_len = packet[4]; - buf[0] = 0x05; /* CD-ROM */ - buf[1] = 0x80; /* removable */ - buf[2] = 0x00; /* ISO */ - buf[3] = 0x21; /* ATAPI-2 (XXX: put ATAPI-4 ?) */ - buf[4] = 31; /* additional length */ - buf[5] = 0; /* reserved */ - buf[6] = 0; /* reserved */ - buf[7] = 0; /* reserved */ - padstr8(buf + 8, 8, "QEMU"); - padstr8(buf + 16, 16, "QEMU DVD-ROM"); - padstr8(buf + 32, 4, s->version); - ide_atapi_cmd_reply(s, 36, max_len); - break; - case GPCMD_GET_CONFIGURATION: - { - uint32_t len; - uint8_t index = 0; - - /* only feature 0 is supported */ - if (packet[2] != 0 || packet[3] != 0) { - ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, - ASC_INV_FIELD_IN_CMD_PACKET); - break; - } - - /* XXX: could result in alignment problems in some architectures */ - max_len = ube16_to_cpu(packet + 7); - - /* - * XXX: avoid overflow for io_buffer if max_len is bigger than - * the size of that buffer (dimensioned to max number of - * sectors to transfer at once) - * - * Only a problem if the feature/profiles grow. - */ - if (max_len > 512) /* XXX: assume 1 sector */ - max_len = 512; - - memset(buf, 0, max_len); - /* - * the number of sectors from the media tells us which profile - * to use as current. 0 means there is no media - */ - if (media_is_dvd(s)) - cpu_to_ube16(buf + 6, MMC_PROFILE_DVD_ROM); - else if (media_is_cd(s)) - cpu_to_ube16(buf + 6, MMC_PROFILE_CD_ROM); - - buf[10] = 0x02 | 0x01; /* persistent and current */ - len = 12; /* headers: 8 + 4 */ - len += ide_atapi_set_profile(buf, &index, MMC_PROFILE_DVD_ROM); - len += ide_atapi_set_profile(buf, &index, MMC_PROFILE_CD_ROM); - cpu_to_ube32(buf, len - 4); /* data length */ - - ide_atapi_cmd_reply(s, len, max_len); - break; - } - case GPCMD_GET_EVENT_STATUS_NOTIFICATION: - handle_get_event_status_notification(s, buf, packet); - break; - default: - ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, - ASC_ILLEGAL_OPCODE); - break; - } -} - static void ide_cfata_metadata_inquiry(IDEState *s) { uint16_t *p; @@ -1734,8 +684,13 @@ static void cdrom_change_cb(void *opaque, int reason) bdrv_get_geometry(s->bs, &nb_sectors); s->nb_sectors = nb_sectors; - s->sense_key = SENSE_UNIT_ATTENTION; - s->asc = ASC_MEDIUM_MAY_HAVE_CHANGED; + /* + * First indicate to the guest that a CD has been removed. That's + * done on the next command the guest sends us. + * + * Then we set SENSE_UNIT_ATTENTION, by which the guest will + * detect a new CD in the drive. See ide_atapi_cmd() for details. + */ s->cdrom_changed = 1; s->events.new_media = true; ide_set_irq(s->bus); |