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/*
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* QEMU ATAPI Emulation
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*
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* Copyright (c) 2003 Fabrice Bellard
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* Copyright (c) 2006 Openedhand Ltd.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "hw/ide/internal.h" |
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#include "hw/scsi.h" |
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static void ide_atapi_cmd_read_dma_cb(void *opaque, int ret); |
30 |
|
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static void padstr8(uint8_t *buf, int buf_size, const char *src) |
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{ |
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int i;
|
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for(i = 0; i < buf_size; i++) { |
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if (*src)
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buf[i] = *src++; |
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else
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buf[i] = ' ';
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} |
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} |
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|
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static inline void cpu_to_ube16(uint8_t *buf, int val) |
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{ |
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buf[0] = val >> 8; |
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buf[1] = val & 0xff; |
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} |
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|
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static inline void cpu_to_ube32(uint8_t *buf, unsigned int val) |
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{ |
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buf[0] = val >> 24; |
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buf[1] = val >> 16; |
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buf[2] = val >> 8; |
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buf[3] = val & 0xff; |
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} |
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|
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static inline int ube16_to_cpu(const uint8_t *buf) |
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{ |
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return (buf[0] << 8) | buf[1]; |
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} |
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|
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static inline int ube32_to_cpu(const uint8_t *buf) |
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{ |
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return (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3]; |
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} |
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|
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static void lba_to_msf(uint8_t *buf, int lba) |
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{ |
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lba += 150;
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buf[0] = (lba / 75) / 60; |
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buf[1] = (lba / 75) % 60; |
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buf[2] = lba % 75; |
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} |
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|
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static inline int media_present(IDEState *s) |
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{ |
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return !s->tray_open && s->nb_sectors > 0; |
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} |
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|
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/* XXX: DVDs that could fit on a CD will be reported as a CD */
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static inline int media_is_dvd(IDEState *s) |
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{ |
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return (media_present(s) && s->nb_sectors > CD_MAX_SECTORS);
|
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} |
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|
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static inline int media_is_cd(IDEState *s) |
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{ |
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return (media_present(s) && s->nb_sectors <= CD_MAX_SECTORS);
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} |
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|
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static void cd_data_to_raw(uint8_t *buf, int lba) |
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{ |
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/* sync bytes */
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buf[0] = 0x00; |
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memset(buf + 1, 0xff, 10); |
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buf[11] = 0x00; |
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buf += 12;
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/* MSF */
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lba_to_msf(buf, lba); |
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buf[3] = 0x01; /* mode 1 data */ |
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buf += 4;
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/* data */
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buf += 2048;
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/* XXX: ECC not computed */
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memset(buf, 0, 288); |
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} |
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|
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static int cd_read_sector(IDEState *s, int lba, uint8_t *buf, int sector_size) |
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{ |
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int ret;
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|
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switch(sector_size) {
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case 2048: |
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bdrv_acct_start(s->bs, &s->acct, 4 * BDRV_SECTOR_SIZE, BDRV_ACCT_READ);
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ret = bdrv_read(s->bs, (int64_t)lba << 2, buf, 4); |
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bdrv_acct_done(s->bs, &s->acct); |
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break;
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case 2352: |
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bdrv_acct_start(s->bs, &s->acct, 4 * BDRV_SECTOR_SIZE, BDRV_ACCT_READ);
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ret = bdrv_read(s->bs, (int64_t)lba << 2, buf + 16, 4); |
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bdrv_acct_done(s->bs, &s->acct); |
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if (ret < 0) |
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return ret;
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cd_data_to_raw(buf, lba); |
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break;
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default:
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ret = -EIO; |
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break;
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} |
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return ret;
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} |
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|
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void ide_atapi_cmd_ok(IDEState *s)
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{ |
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s->error = 0;
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s->status = READY_STAT | SEEK_STAT; |
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s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD;
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ide_set_irq(s->bus); |
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} |
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|
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void ide_atapi_cmd_error(IDEState *s, int sense_key, int asc) |
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{ |
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#ifdef DEBUG_IDE_ATAPI
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printf("atapi_cmd_error: sense=0x%x asc=0x%x\n", sense_key, asc);
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#endif
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s->error = sense_key << 4;
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s->status = READY_STAT | ERR_STAT; |
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s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD;
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s->sense_key = sense_key; |
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s->asc = asc; |
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ide_set_irq(s->bus); |
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} |
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|
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void ide_atapi_io_error(IDEState *s, int ret) |
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{ |
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/* XXX: handle more errors */
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if (ret == -ENOMEDIUM) {
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ide_atapi_cmd_error(s, SENSE_NOT_READY, |
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ASC_MEDIUM_NOT_PRESENT); |
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} else {
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ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, |
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ASC_LOGICAL_BLOCK_OOR); |
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} |
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} |
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/* The whole ATAPI transfer logic is handled in this function */
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void ide_atapi_cmd_reply_end(IDEState *s)
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{ |
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int byte_count_limit, size, ret;
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#ifdef DEBUG_IDE_ATAPI
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printf("reply: tx_size=%d elem_tx_size=%d index=%d\n",
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s->packet_transfer_size, |
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s->elementary_transfer_size, |
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s->io_buffer_index); |
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#endif
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if (s->packet_transfer_size <= 0) { |
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/* end of transfer */
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ide_transfer_stop(s); |
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s->status = READY_STAT | SEEK_STAT; |
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s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD;
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ide_set_irq(s->bus); |
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#ifdef DEBUG_IDE_ATAPI
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printf("status=0x%x\n", s->status);
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#endif
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} else {
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/* see if a new sector must be read */
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if (s->lba != -1 && s->io_buffer_index >= s->cd_sector_size) { |
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ret = cd_read_sector(s, s->lba, s->io_buffer, s->cd_sector_size); |
188 |
if (ret < 0) { |
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ide_transfer_stop(s); |
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ide_atapi_io_error(s, ret); |
191 |
return;
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} |
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s->lba++; |
194 |
s->io_buffer_index = 0;
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} |
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if (s->elementary_transfer_size > 0) { |
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/* there are some data left to transmit in this elementary
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transfer */
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size = s->cd_sector_size - s->io_buffer_index; |
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if (size > s->elementary_transfer_size)
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size = s->elementary_transfer_size; |
202 |
s->packet_transfer_size -= size; |
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s->elementary_transfer_size -= size; |
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s->io_buffer_index += size; |
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ide_transfer_start(s, s->io_buffer + s->io_buffer_index - size, |
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size, ide_atapi_cmd_reply_end); |
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} else {
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/* a new transfer is needed */
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s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO;
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byte_count_limit = s->lcyl | (s->hcyl << 8);
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#ifdef DEBUG_IDE_ATAPI
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printf("byte_count_limit=%d\n", byte_count_limit);
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#endif
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if (byte_count_limit == 0xffff) |
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byte_count_limit--; |
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size = s->packet_transfer_size; |
217 |
if (size > byte_count_limit) {
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/* byte count limit must be even if this case */
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if (byte_count_limit & 1) |
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byte_count_limit--; |
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size = byte_count_limit; |
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} |
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s->lcyl = size; |
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s->hcyl = size >> 8;
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s->elementary_transfer_size = size; |
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/* we cannot transmit more than one sector at a time */
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if (s->lba != -1) { |
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if (size > (s->cd_sector_size - s->io_buffer_index))
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size = (s->cd_sector_size - s->io_buffer_index); |
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} |
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s->packet_transfer_size -= size; |
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s->elementary_transfer_size -= size; |
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s->io_buffer_index += size; |
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ide_transfer_start(s, s->io_buffer + s->io_buffer_index - size, |
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size, ide_atapi_cmd_reply_end); |
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ide_set_irq(s->bus); |
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#ifdef DEBUG_IDE_ATAPI
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printf("status=0x%x\n", s->status);
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#endif
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} |
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} |
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} |
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|
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/* send a reply of 'size' bytes in s->io_buffer to an ATAPI command */
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static void ide_atapi_cmd_reply(IDEState *s, int size, int max_size) |
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{ |
247 |
if (size > max_size)
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size = max_size; |
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s->lba = -1; /* no sector read */ |
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s->packet_transfer_size = size; |
251 |
s->io_buffer_size = size; /* dma: send the reply data as one chunk */
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s->elementary_transfer_size = 0;
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s->io_buffer_index = 0;
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|
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if (s->atapi_dma) {
|
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bdrv_acct_start(s->bs, &s->acct, size, BDRV_ACCT_READ); |
257 |
s->status = READY_STAT | SEEK_STAT | DRQ_STAT; |
258 |
s->bus->dma->ops->start_dma(s->bus->dma, s, |
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ide_atapi_cmd_read_dma_cb); |
260 |
} else {
|
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s->status = READY_STAT | SEEK_STAT; |
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ide_atapi_cmd_reply_end(s); |
263 |
} |
264 |
} |
265 |
|
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/* start a CD-CDROM read command */
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static void ide_atapi_cmd_read_pio(IDEState *s, int lba, int nb_sectors, |
268 |
int sector_size)
|
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{ |
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s->lba = lba; |
271 |
s->packet_transfer_size = nb_sectors * sector_size; |
272 |
s->elementary_transfer_size = 0;
|
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s->io_buffer_index = sector_size; |
274 |
s->cd_sector_size = sector_size; |
275 |
|
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s->status = READY_STAT | SEEK_STAT; |
277 |
ide_atapi_cmd_reply_end(s); |
278 |
} |
279 |
|
280 |
static void ide_atapi_cmd_check_status(IDEState *s) |
281 |
{ |
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#ifdef DEBUG_IDE_ATAPI
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printf("atapi_cmd_check_status\n");
|
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#endif
|
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s->error = MC_ERR | (SENSE_UNIT_ATTENTION << 4);
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s->status = ERR_STAT; |
287 |
s->nsector = 0;
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ide_set_irq(s->bus); |
289 |
} |
290 |
/* ATAPI DMA support */
|
291 |
|
292 |
/* XXX: handle read errors */
|
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static void ide_atapi_cmd_read_dma_cb(void *opaque, int ret) |
294 |
{ |
295 |
IDEState *s = opaque; |
296 |
int data_offset, n;
|
297 |
|
298 |
if (ret < 0) { |
299 |
ide_atapi_io_error(s, ret); |
300 |
goto eot;
|
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} |
302 |
|
303 |
if (s->io_buffer_size > 0) { |
304 |
/*
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* For a cdrom read sector command (s->lba != -1),
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* adjust the lba for the next s->io_buffer_size chunk
|
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* and dma the current chunk.
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* For a command != read (s->lba == -1), just transfer
|
309 |
* the reply data.
|
310 |
*/
|
311 |
if (s->lba != -1) { |
312 |
if (s->cd_sector_size == 2352) { |
313 |
n = 1;
|
314 |
cd_data_to_raw(s->io_buffer, s->lba); |
315 |
} else {
|
316 |
n = s->io_buffer_size >> 11;
|
317 |
} |
318 |
s->lba += n; |
319 |
} |
320 |
s->packet_transfer_size -= s->io_buffer_size; |
321 |
if (s->bus->dma->ops->rw_buf(s->bus->dma, 1) == 0) |
322 |
goto eot;
|
323 |
} |
324 |
|
325 |
if (s->packet_transfer_size <= 0) { |
326 |
s->status = READY_STAT | SEEK_STAT; |
327 |
s->nsector = (s->nsector & ~7) | ATAPI_INT_REASON_IO | ATAPI_INT_REASON_CD;
|
328 |
ide_set_irq(s->bus); |
329 |
goto eot;
|
330 |
} |
331 |
|
332 |
s->io_buffer_index = 0;
|
333 |
if (s->cd_sector_size == 2352) { |
334 |
n = 1;
|
335 |
s->io_buffer_size = s->cd_sector_size; |
336 |
data_offset = 16;
|
337 |
} else {
|
338 |
n = s->packet_transfer_size >> 11;
|
339 |
if (n > (IDE_DMA_BUF_SECTORS / 4)) |
340 |
n = (IDE_DMA_BUF_SECTORS / 4);
|
341 |
s->io_buffer_size = n * 2048;
|
342 |
data_offset = 0;
|
343 |
} |
344 |
#ifdef DEBUG_AIO
|
345 |
printf("aio_read_cd: lba=%u n=%d\n", s->lba, n);
|
346 |
#endif
|
347 |
|
348 |
s->bus->dma->iov.iov_base = (void *)(s->io_buffer + data_offset);
|
349 |
s->bus->dma->iov.iov_len = n * 4 * 512; |
350 |
qemu_iovec_init_external(&s->bus->dma->qiov, &s->bus->dma->iov, 1);
|
351 |
|
352 |
s->bus->dma->aiocb = bdrv_aio_readv(s->bs, (int64_t)s->lba << 2,
|
353 |
&s->bus->dma->qiov, n * 4,
|
354 |
ide_atapi_cmd_read_dma_cb, s); |
355 |
if (!s->bus->dma->aiocb) {
|
356 |
/* Note: media not present is the most likely case */
|
357 |
ide_atapi_cmd_error(s, SENSE_NOT_READY, |
358 |
ASC_MEDIUM_NOT_PRESENT); |
359 |
goto eot;
|
360 |
} |
361 |
|
362 |
return;
|
363 |
eot:
|
364 |
bdrv_acct_done(s->bs, &s->acct); |
365 |
s->bus->dma->ops->add_status(s->bus->dma, BM_STATUS_INT); |
366 |
ide_set_inactive(s); |
367 |
} |
368 |
|
369 |
/* start a CD-CDROM read command with DMA */
|
370 |
/* XXX: test if DMA is available */
|
371 |
static void ide_atapi_cmd_read_dma(IDEState *s, int lba, int nb_sectors, |
372 |
int sector_size)
|
373 |
{ |
374 |
s->lba = lba; |
375 |
s->packet_transfer_size = nb_sectors * sector_size; |
376 |
s->io_buffer_index = 0;
|
377 |
s->io_buffer_size = 0;
|
378 |
s->cd_sector_size = sector_size; |
379 |
|
380 |
bdrv_acct_start(s->bs, &s->acct, s->packet_transfer_size, BDRV_ACCT_READ); |
381 |
|
382 |
/* XXX: check if BUSY_STAT should be set */
|
383 |
s->status = READY_STAT | SEEK_STAT | DRQ_STAT | BUSY_STAT; |
384 |
s->bus->dma->ops->start_dma(s->bus->dma, s, |
385 |
ide_atapi_cmd_read_dma_cb); |
386 |
} |
387 |
|
388 |
static void ide_atapi_cmd_read(IDEState *s, int lba, int nb_sectors, |
389 |
int sector_size)
|
390 |
{ |
391 |
#ifdef DEBUG_IDE_ATAPI
|
392 |
printf("read %s: LBA=%d nb_sectors=%d\n", s->atapi_dma ? "dma" : "pio", |
393 |
lba, nb_sectors); |
394 |
#endif
|
395 |
if (s->atapi_dma) {
|
396 |
ide_atapi_cmd_read_dma(s, lba, nb_sectors, sector_size); |
397 |
} else {
|
398 |
ide_atapi_cmd_read_pio(s, lba, nb_sectors, sector_size); |
399 |
} |
400 |
} |
401 |
|
402 |
static inline uint8_t ide_atapi_set_profile(uint8_t *buf, uint8_t *index, |
403 |
uint16_t profile) |
404 |
{ |
405 |
uint8_t *buf_profile = buf + 12; /* start of profiles */ |
406 |
|
407 |
buf_profile += ((*index) * 4); /* start of indexed profile */ |
408 |
cpu_to_ube16 (buf_profile, profile); |
409 |
buf_profile[2] = ((buf_profile[0] == buf[6]) && (buf_profile[1] == buf[7])); |
410 |
|
411 |
/* each profile adds 4 bytes to the response */
|
412 |
(*index)++; |
413 |
buf[11] += 4; /* Additional Length */ |
414 |
|
415 |
return 4; |
416 |
} |
417 |
|
418 |
static int ide_dvd_read_structure(IDEState *s, int format, |
419 |
const uint8_t *packet, uint8_t *buf)
|
420 |
{ |
421 |
switch (format) {
|
422 |
case 0x0: /* Physical format information */ |
423 |
{ |
424 |
int layer = packet[6]; |
425 |
uint64_t total_sectors; |
426 |
|
427 |
if (layer != 0) |
428 |
return -ASC_INV_FIELD_IN_CMD_PACKET;
|
429 |
|
430 |
total_sectors = s->nb_sectors >> 2;
|
431 |
if (total_sectors == 0) { |
432 |
return -ASC_MEDIUM_NOT_PRESENT;
|
433 |
} |
434 |
|
435 |
buf[4] = 1; /* DVD-ROM, part version 1 */ |
436 |
buf[5] = 0xf; /* 120mm disc, minimum rate unspecified */ |
437 |
buf[6] = 1; /* one layer, read-only (per MMC-2 spec) */ |
438 |
buf[7] = 0; /* default densities */ |
439 |
|
440 |
/* FIXME: 0x30000 per spec? */
|
441 |
cpu_to_ube32(buf + 8, 0); /* start sector */ |
442 |
cpu_to_ube32(buf + 12, total_sectors - 1); /* end sector */ |
443 |
cpu_to_ube32(buf + 16, total_sectors - 1); /* l0 end sector */ |
444 |
|
445 |
/* Size of buffer, not including 2 byte size field */
|
446 |
cpu_to_be16wu((uint16_t *)buf, 2048 + 2); |
447 |
|
448 |
/* 2k data + 4 byte header */
|
449 |
return (2048 + 4); |
450 |
} |
451 |
|
452 |
case 0x01: /* DVD copyright information */ |
453 |
buf[4] = 0; /* no copyright data */ |
454 |
buf[5] = 0; /* no region restrictions */ |
455 |
|
456 |
/* Size of buffer, not including 2 byte size field */
|
457 |
cpu_to_be16wu((uint16_t *)buf, 4 + 2); |
458 |
|
459 |
/* 4 byte header + 4 byte data */
|
460 |
return (4 + 4); |
461 |
|
462 |
case 0x03: /* BCA information - invalid field for no BCA info */ |
463 |
return -ASC_INV_FIELD_IN_CMD_PACKET;
|
464 |
|
465 |
case 0x04: /* DVD disc manufacturing information */ |
466 |
/* Size of buffer, not including 2 byte size field */
|
467 |
cpu_to_be16wu((uint16_t *)buf, 2048 + 2); |
468 |
|
469 |
/* 2k data + 4 byte header */
|
470 |
return (2048 + 4); |
471 |
|
472 |
case 0xff: |
473 |
/*
|
474 |
* This lists all the command capabilities above. Add new ones
|
475 |
* in order and update the length and buffer return values.
|
476 |
*/
|
477 |
|
478 |
buf[4] = 0x00; /* Physical format */ |
479 |
buf[5] = 0x40; /* Not writable, is readable */ |
480 |
cpu_to_be16wu((uint16_t *)(buf + 6), 2048 + 4); |
481 |
|
482 |
buf[8] = 0x01; /* Copyright info */ |
483 |
buf[9] = 0x40; /* Not writable, is readable */ |
484 |
cpu_to_be16wu((uint16_t *)(buf + 10), 4 + 4); |
485 |
|
486 |
buf[12] = 0x03; /* BCA info */ |
487 |
buf[13] = 0x40; /* Not writable, is readable */ |
488 |
cpu_to_be16wu((uint16_t *)(buf + 14), 188 + 4); |
489 |
|
490 |
buf[16] = 0x04; /* Manufacturing info */ |
491 |
buf[17] = 0x40; /* Not writable, is readable */ |
492 |
cpu_to_be16wu((uint16_t *)(buf + 18), 2048 + 4); |
493 |
|
494 |
/* Size of buffer, not including 2 byte size field */
|
495 |
cpu_to_be16wu((uint16_t *)buf, 16 + 2); |
496 |
|
497 |
/* data written + 4 byte header */
|
498 |
return (16 + 4); |
499 |
|
500 |
default: /* TODO: formats beyond DVD-ROM requires */ |
501 |
return -ASC_INV_FIELD_IN_CMD_PACKET;
|
502 |
} |
503 |
} |
504 |
|
505 |
static unsigned int event_status_media(IDEState *s, |
506 |
uint8_t *buf) |
507 |
{ |
508 |
enum media_event_code {
|
509 |
MEC_NO_CHANGE = 0, /* Status unchanged */ |
510 |
MEC_EJECT_REQUESTED, /* received a request from user to eject */
|
511 |
MEC_NEW_MEDIA, /* new media inserted and ready for access */
|
512 |
MEC_MEDIA_REMOVAL, /* only for media changers */
|
513 |
MEC_MEDIA_CHANGED, /* only for media changers */
|
514 |
MEC_BG_FORMAT_COMPLETED, /* MRW or DVD+RW b/g format completed */
|
515 |
MEC_BG_FORMAT_RESTARTED, /* MRW or DVD+RW b/g format restarted */
|
516 |
}; |
517 |
enum media_status {
|
518 |
MS_TRAY_OPEN = 1,
|
519 |
MS_MEDIA_PRESENT = 2,
|
520 |
}; |
521 |
uint8_t event_code, media_status; |
522 |
|
523 |
media_status = 0;
|
524 |
if (s->tray_open) {
|
525 |
media_status = MS_TRAY_OPEN; |
526 |
} else if (bdrv_is_inserted(s->bs)) { |
527 |
media_status = MS_MEDIA_PRESENT; |
528 |
} |
529 |
|
530 |
/* Event notification descriptor */
|
531 |
event_code = MEC_NO_CHANGE; |
532 |
if (media_status != MS_TRAY_OPEN && s->events.new_media) {
|
533 |
event_code = MEC_NEW_MEDIA; |
534 |
s->events.new_media = false;
|
535 |
} |
536 |
|
537 |
buf[4] = event_code;
|
538 |
buf[5] = media_status;
|
539 |
|
540 |
/* These fields are reserved, just clear them. */
|
541 |
buf[6] = 0; |
542 |
buf[7] = 0; |
543 |
|
544 |
return 8; /* We wrote to 4 extra bytes from the header */ |
545 |
} |
546 |
|
547 |
static void cmd_get_event_status_notification(IDEState *s, |
548 |
uint8_t *buf) |
549 |
{ |
550 |
const uint8_t *packet = buf;
|
551 |
|
552 |
struct {
|
553 |
uint8_t opcode; |
554 |
uint8_t polled; /* lsb bit is polled; others are reserved */
|
555 |
uint8_t reserved2[2];
|
556 |
uint8_t class; |
557 |
uint8_t reserved3[2];
|
558 |
uint16_t len; |
559 |
uint8_t control; |
560 |
} QEMU_PACKED *gesn_cdb; |
561 |
|
562 |
struct {
|
563 |
uint16_t len; |
564 |
uint8_t notification_class; |
565 |
uint8_t supported_events; |
566 |
} QEMU_PACKED *gesn_event_header; |
567 |
|
568 |
enum notification_class_request_type {
|
569 |
NCR_RESERVED1 = 1 << 0, |
570 |
NCR_OPERATIONAL_CHANGE = 1 << 1, |
571 |
NCR_POWER_MANAGEMENT = 1 << 2, |
572 |
NCR_EXTERNAL_REQUEST = 1 << 3, |
573 |
NCR_MEDIA = 1 << 4, |
574 |
NCR_MULTI_HOST = 1 << 5, |
575 |
NCR_DEVICE_BUSY = 1 << 6, |
576 |
NCR_RESERVED2 = 1 << 7, |
577 |
}; |
578 |
enum event_notification_class_field {
|
579 |
ENC_NO_EVENTS = 0,
|
580 |
ENC_OPERATIONAL_CHANGE, |
581 |
ENC_POWER_MANAGEMENT, |
582 |
ENC_EXTERNAL_REQUEST, |
583 |
ENC_MEDIA, |
584 |
ENC_MULTIPLE_HOSTS, |
585 |
ENC_DEVICE_BUSY, |
586 |
ENC_RESERVED, |
587 |
}; |
588 |
unsigned int max_len, used_len; |
589 |
|
590 |
gesn_cdb = (void *)packet;
|
591 |
gesn_event_header = (void *)buf;
|
592 |
|
593 |
max_len = be16_to_cpu(gesn_cdb->len); |
594 |
|
595 |
/* It is fine by the MMC spec to not support async mode operations */
|
596 |
if (!(gesn_cdb->polled & 0x01)) { /* asynchronous mode */ |
597 |
/* Only polling is supported, asynchronous mode is not. */
|
598 |
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, |
599 |
ASC_INV_FIELD_IN_CMD_PACKET); |
600 |
return;
|
601 |
} |
602 |
|
603 |
/* polling mode operation */
|
604 |
|
605 |
/*
|
606 |
* These are the supported events.
|
607 |
*
|
608 |
* We currently only support requests of the 'media' type.
|
609 |
*/
|
610 |
gesn_event_header->supported_events = NCR_MEDIA; |
611 |
|
612 |
/*
|
613 |
* We use |= below to set the class field; other bits in this byte
|
614 |
* are reserved now but this is useful to do if we have to use the
|
615 |
* reserved fields later.
|
616 |
*/
|
617 |
gesn_event_header->notification_class = 0;
|
618 |
|
619 |
/*
|
620 |
* Responses to requests are to be based on request priority. The
|
621 |
* notification_class_request_type enum above specifies the
|
622 |
* priority: upper elements are higher prio than lower ones.
|
623 |
*/
|
624 |
if (gesn_cdb->class & NCR_MEDIA) {
|
625 |
gesn_event_header->notification_class |= ENC_MEDIA; |
626 |
used_len = event_status_media(s, buf); |
627 |
} else {
|
628 |
gesn_event_header->notification_class = 0x80; /* No event available */ |
629 |
used_len = sizeof(*gesn_event_header);
|
630 |
} |
631 |
gesn_event_header->len = cpu_to_be16(used_len |
632 |
- sizeof(*gesn_event_header));
|
633 |
ide_atapi_cmd_reply(s, used_len, max_len); |
634 |
} |
635 |
|
636 |
static void cmd_request_sense(IDEState *s, uint8_t *buf) |
637 |
{ |
638 |
int max_len = buf[4]; |
639 |
|
640 |
memset(buf, 0, 18); |
641 |
buf[0] = 0x70 | (1 << 7); |
642 |
buf[2] = s->sense_key;
|
643 |
buf[7] = 10; |
644 |
buf[12] = s->asc;
|
645 |
|
646 |
if (s->sense_key == SENSE_UNIT_ATTENTION) {
|
647 |
s->sense_key = SENSE_NONE; |
648 |
} |
649 |
|
650 |
ide_atapi_cmd_reply(s, 18, max_len);
|
651 |
} |
652 |
|
653 |
static void cmd_inquiry(IDEState *s, uint8_t *buf) |
654 |
{ |
655 |
int max_len = buf[4]; |
656 |
|
657 |
buf[0] = 0x05; /* CD-ROM */ |
658 |
buf[1] = 0x80; /* removable */ |
659 |
buf[2] = 0x00; /* ISO */ |
660 |
buf[3] = 0x21; /* ATAPI-2 (XXX: put ATAPI-4 ?) */ |
661 |
buf[4] = 31; /* additional length */ |
662 |
buf[5] = 0; /* reserved */ |
663 |
buf[6] = 0; /* reserved */ |
664 |
buf[7] = 0; /* reserved */ |
665 |
padstr8(buf + 8, 8, "QEMU"); |
666 |
padstr8(buf + 16, 16, "QEMU DVD-ROM"); |
667 |
padstr8(buf + 32, 4, s->version); |
668 |
ide_atapi_cmd_reply(s, 36, max_len);
|
669 |
} |
670 |
|
671 |
static void cmd_get_configuration(IDEState *s, uint8_t *buf) |
672 |
{ |
673 |
uint32_t len; |
674 |
uint8_t index = 0;
|
675 |
int max_len;
|
676 |
|
677 |
/* only feature 0 is supported */
|
678 |
if (buf[2] != 0 || buf[3] != 0) { |
679 |
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, |
680 |
ASC_INV_FIELD_IN_CMD_PACKET); |
681 |
return;
|
682 |
} |
683 |
|
684 |
/* XXX: could result in alignment problems in some architectures */
|
685 |
max_len = ube16_to_cpu(buf + 7);
|
686 |
|
687 |
/*
|
688 |
* XXX: avoid overflow for io_buffer if max_len is bigger than
|
689 |
* the size of that buffer (dimensioned to max number of
|
690 |
* sectors to transfer at once)
|
691 |
*
|
692 |
* Only a problem if the feature/profiles grow.
|
693 |
*/
|
694 |
if (max_len > 512) { |
695 |
/* XXX: assume 1 sector */
|
696 |
max_len = 512;
|
697 |
} |
698 |
|
699 |
memset(buf, 0, max_len);
|
700 |
/*
|
701 |
* the number of sectors from the media tells us which profile
|
702 |
* to use as current. 0 means there is no media
|
703 |
*/
|
704 |
if (media_is_dvd(s)) {
|
705 |
cpu_to_ube16(buf + 6, MMC_PROFILE_DVD_ROM);
|
706 |
} else if (media_is_cd(s)) { |
707 |
cpu_to_ube16(buf + 6, MMC_PROFILE_CD_ROM);
|
708 |
} |
709 |
|
710 |
buf[10] = 0x02 | 0x01; /* persistent and current */ |
711 |
len = 12; /* headers: 8 + 4 */ |
712 |
len += ide_atapi_set_profile(buf, &index, MMC_PROFILE_DVD_ROM); |
713 |
len += ide_atapi_set_profile(buf, &index, MMC_PROFILE_CD_ROM); |
714 |
cpu_to_ube32(buf, len - 4); /* data length */ |
715 |
|
716 |
ide_atapi_cmd_reply(s, len, max_len); |
717 |
} |
718 |
|
719 |
static void cmd_mode_sense(IDEState *s, uint8_t *buf) |
720 |
{ |
721 |
int action, code;
|
722 |
int max_len;
|
723 |
|
724 |
if (buf[0] == GPCMD_MODE_SENSE_10) { |
725 |
max_len = ube16_to_cpu(buf + 7);
|
726 |
} else {
|
727 |
max_len = buf[4];
|
728 |
} |
729 |
|
730 |
action = buf[2] >> 6; |
731 |
code = buf[2] & 0x3f; |
732 |
|
733 |
switch(action) {
|
734 |
case 0: /* current values */ |
735 |
switch(code) {
|
736 |
case GPMODE_R_W_ERROR_PAGE: /* error recovery */ |
737 |
cpu_to_ube16(&buf[0], 16 + 6); |
738 |
buf[2] = 0x70; |
739 |
buf[3] = 0; |
740 |
buf[4] = 0; |
741 |
buf[5] = 0; |
742 |
buf[6] = 0; |
743 |
buf[7] = 0; |
744 |
|
745 |
buf[8] = 0x01; |
746 |
buf[9] = 0x06; |
747 |
buf[10] = 0x00; |
748 |
buf[11] = 0x05; |
749 |
buf[12] = 0x00; |
750 |
buf[13] = 0x00; |
751 |
buf[14] = 0x00; |
752 |
buf[15] = 0x00; |
753 |
ide_atapi_cmd_reply(s, 16, max_len);
|
754 |
break;
|
755 |
case GPMODE_AUDIO_CTL_PAGE:
|
756 |
cpu_to_ube16(&buf[0], 24 + 6); |
757 |
buf[2] = 0x70; |
758 |
buf[3] = 0; |
759 |
buf[4] = 0; |
760 |
buf[5] = 0; |
761 |
buf[6] = 0; |
762 |
buf[7] = 0; |
763 |
|
764 |
/* Fill with CDROM audio volume */
|
765 |
buf[17] = 0; |
766 |
buf[19] = 0; |
767 |
buf[21] = 0; |
768 |
buf[23] = 0; |
769 |
|
770 |
ide_atapi_cmd_reply(s, 24, max_len);
|
771 |
break;
|
772 |
case GPMODE_CAPABILITIES_PAGE:
|
773 |
cpu_to_ube16(&buf[0], 28 + 6); |
774 |
buf[2] = 0x70; |
775 |
buf[3] = 0; |
776 |
buf[4] = 0; |
777 |
buf[5] = 0; |
778 |
buf[6] = 0; |
779 |
buf[7] = 0; |
780 |
|
781 |
buf[8] = 0x2a; |
782 |
buf[9] = 0x12; |
783 |
buf[10] = 0x00; |
784 |
buf[11] = 0x00; |
785 |
|
786 |
/* Claim PLAY_AUDIO capability (0x01) since some Linux
|
787 |
code checks for this to automount media. */
|
788 |
buf[12] = 0x71; |
789 |
buf[13] = 3 << 5; |
790 |
buf[14] = (1 << 0) | (1 << 3) | (1 << 5); |
791 |
if (s->tray_locked) {
|
792 |
buf[6] |= 1 << 1; |
793 |
} |
794 |
buf[15] = 0x00; |
795 |
cpu_to_ube16(&buf[16], 706); |
796 |
buf[18] = 0; |
797 |
buf[19] = 2; |
798 |
cpu_to_ube16(&buf[20], 512); |
799 |
cpu_to_ube16(&buf[22], 706); |
800 |
buf[24] = 0; |
801 |
buf[25] = 0; |
802 |
buf[26] = 0; |
803 |
buf[27] = 0; |
804 |
ide_atapi_cmd_reply(s, 28, max_len);
|
805 |
break;
|
806 |
default:
|
807 |
goto error_cmd;
|
808 |
} |
809 |
break;
|
810 |
case 1: /* changeable values */ |
811 |
goto error_cmd;
|
812 |
case 2: /* default values */ |
813 |
goto error_cmd;
|
814 |
default:
|
815 |
case 3: /* saved values */ |
816 |
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, |
817 |
ASC_SAVING_PARAMETERS_NOT_SUPPORTED); |
818 |
break;
|
819 |
} |
820 |
return;
|
821 |
|
822 |
error_cmd:
|
823 |
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, ASC_INV_FIELD_IN_CMD_PACKET); |
824 |
} |
825 |
|
826 |
static void cmd_test_unit_ready(IDEState *s, uint8_t *buf) |
827 |
{ |
828 |
/* Not Ready Conditions are already handled in ide_atapi_cmd(), so if we
|
829 |
* come here, we know that it's ready. */
|
830 |
ide_atapi_cmd_ok(s); |
831 |
} |
832 |
|
833 |
static void cmd_prevent_allow_medium_removal(IDEState *s, uint8_t* buf) |
834 |
{ |
835 |
s->tray_locked = buf[4] & 1; |
836 |
bdrv_lock_medium(s->bs, buf[4] & 1); |
837 |
ide_atapi_cmd_ok(s); |
838 |
} |
839 |
|
840 |
static void cmd_read(IDEState *s, uint8_t* buf) |
841 |
{ |
842 |
int nb_sectors, lba;
|
843 |
|
844 |
if (buf[0] == GPCMD_READ_10) { |
845 |
nb_sectors = ube16_to_cpu(buf + 7);
|
846 |
} else {
|
847 |
nb_sectors = ube32_to_cpu(buf + 6);
|
848 |
} |
849 |
|
850 |
lba = ube32_to_cpu(buf + 2);
|
851 |
if (nb_sectors == 0) { |
852 |
ide_atapi_cmd_ok(s); |
853 |
return;
|
854 |
} |
855 |
|
856 |
ide_atapi_cmd_read(s, lba, nb_sectors, 2048);
|
857 |
} |
858 |
|
859 |
static void cmd_read_cd(IDEState *s, uint8_t* buf) |
860 |
{ |
861 |
int nb_sectors, lba, transfer_request;
|
862 |
|
863 |
nb_sectors = (buf[6] << 16) | (buf[7] << 8) | buf[8]; |
864 |
lba = ube32_to_cpu(buf + 2);
|
865 |
|
866 |
if (nb_sectors == 0) { |
867 |
ide_atapi_cmd_ok(s); |
868 |
return;
|
869 |
} |
870 |
|
871 |
transfer_request = buf[9];
|
872 |
switch(transfer_request & 0xf8) { |
873 |
case 0x00: |
874 |
/* nothing */
|
875 |
ide_atapi_cmd_ok(s); |
876 |
break;
|
877 |
case 0x10: |
878 |
/* normal read */
|
879 |
ide_atapi_cmd_read(s, lba, nb_sectors, 2048);
|
880 |
break;
|
881 |
case 0xf8: |
882 |
/* read all data */
|
883 |
ide_atapi_cmd_read(s, lba, nb_sectors, 2352);
|
884 |
break;
|
885 |
default:
|
886 |
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, |
887 |
ASC_INV_FIELD_IN_CMD_PACKET); |
888 |
break;
|
889 |
} |
890 |
} |
891 |
|
892 |
static void cmd_seek(IDEState *s, uint8_t* buf) |
893 |
{ |
894 |
unsigned int lba; |
895 |
uint64_t total_sectors = s->nb_sectors >> 2;
|
896 |
|
897 |
lba = ube32_to_cpu(buf + 2);
|
898 |
if (lba >= total_sectors) {
|
899 |
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, ASC_LOGICAL_BLOCK_OOR); |
900 |
return;
|
901 |
} |
902 |
|
903 |
ide_atapi_cmd_ok(s); |
904 |
} |
905 |
|
906 |
static void cmd_start_stop_unit(IDEState *s, uint8_t* buf) |
907 |
{ |
908 |
int sense;
|
909 |
bool start = buf[4] & 1; |
910 |
bool loej = buf[4] & 2; /* load on start, eject on !start */ |
911 |
|
912 |
if (loej) {
|
913 |
if (!start && !s->tray_open && s->tray_locked) {
|
914 |
sense = bdrv_is_inserted(s->bs) |
915 |
? SENSE_NOT_READY : SENSE_ILLEGAL_REQUEST; |
916 |
ide_atapi_cmd_error(s, sense, ASC_MEDIA_REMOVAL_PREVENTED); |
917 |
return;
|
918 |
} |
919 |
bdrv_eject(s->bs, !start); |
920 |
s->tray_open = !start; |
921 |
} |
922 |
|
923 |
ide_atapi_cmd_ok(s); |
924 |
} |
925 |
|
926 |
static void cmd_mechanism_status(IDEState *s, uint8_t* buf) |
927 |
{ |
928 |
int max_len = ube16_to_cpu(buf + 8); |
929 |
|
930 |
cpu_to_ube16(buf, 0);
|
931 |
/* no current LBA */
|
932 |
buf[2] = 0; |
933 |
buf[3] = 0; |
934 |
buf[4] = 0; |
935 |
buf[5] = 1; |
936 |
cpu_to_ube16(buf + 6, 0); |
937 |
ide_atapi_cmd_reply(s, 8, max_len);
|
938 |
} |
939 |
|
940 |
static void cmd_read_toc_pma_atip(IDEState *s, uint8_t* buf) |
941 |
{ |
942 |
int format, msf, start_track, len;
|
943 |
int max_len;
|
944 |
uint64_t total_sectors = s->nb_sectors >> 2;
|
945 |
|
946 |
max_len = ube16_to_cpu(buf + 7);
|
947 |
format = buf[9] >> 6; |
948 |
msf = (buf[1] >> 1) & 1; |
949 |
start_track = buf[6];
|
950 |
|
951 |
switch(format) {
|
952 |
case 0: |
953 |
len = cdrom_read_toc(total_sectors, buf, msf, start_track); |
954 |
if (len < 0) |
955 |
goto error_cmd;
|
956 |
ide_atapi_cmd_reply(s, len, max_len); |
957 |
break;
|
958 |
case 1: |
959 |
/* multi session : only a single session defined */
|
960 |
memset(buf, 0, 12); |
961 |
buf[1] = 0x0a; |
962 |
buf[2] = 0x01; |
963 |
buf[3] = 0x01; |
964 |
ide_atapi_cmd_reply(s, 12, max_len);
|
965 |
break;
|
966 |
case 2: |
967 |
len = cdrom_read_toc_raw(total_sectors, buf, msf, start_track); |
968 |
if (len < 0) |
969 |
goto error_cmd;
|
970 |
ide_atapi_cmd_reply(s, len, max_len); |
971 |
break;
|
972 |
default:
|
973 |
error_cmd:
|
974 |
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, |
975 |
ASC_INV_FIELD_IN_CMD_PACKET); |
976 |
} |
977 |
} |
978 |
|
979 |
static void cmd_read_cdvd_capacity(IDEState *s, uint8_t* buf) |
980 |
{ |
981 |
uint64_t total_sectors = s->nb_sectors >> 2;
|
982 |
|
983 |
/* NOTE: it is really the number of sectors minus 1 */
|
984 |
cpu_to_ube32(buf, total_sectors - 1);
|
985 |
cpu_to_ube32(buf + 4, 2048); |
986 |
ide_atapi_cmd_reply(s, 8, 8); |
987 |
} |
988 |
|
989 |
static void cmd_read_dvd_structure(IDEState *s, uint8_t* buf) |
990 |
{ |
991 |
int max_len;
|
992 |
int media = buf[1]; |
993 |
int format = buf[7]; |
994 |
int ret;
|
995 |
|
996 |
max_len = ube16_to_cpu(buf + 8);
|
997 |
|
998 |
if (format < 0xff) { |
999 |
if (media_is_cd(s)) {
|
1000 |
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, |
1001 |
ASC_INCOMPATIBLE_FORMAT); |
1002 |
return;
|
1003 |
} else if (!media_present(s)) { |
1004 |
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, |
1005 |
ASC_INV_FIELD_IN_CMD_PACKET); |
1006 |
return;
|
1007 |
} |
1008 |
} |
1009 |
|
1010 |
memset(buf, 0, max_len > IDE_DMA_BUF_SECTORS * 512 + 4 ? |
1011 |
IDE_DMA_BUF_SECTORS * 512 + 4 : max_len); |
1012 |
|
1013 |
switch (format) {
|
1014 |
case 0x00 ... 0x7f: |
1015 |
case 0xff: |
1016 |
if (media == 0) { |
1017 |
ret = ide_dvd_read_structure(s, format, buf, buf); |
1018 |
|
1019 |
if (ret < 0) { |
1020 |
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, -ret); |
1021 |
} else {
|
1022 |
ide_atapi_cmd_reply(s, ret, max_len); |
1023 |
} |
1024 |
|
1025 |
break;
|
1026 |
} |
1027 |
/* TODO: BD support, fall through for now */
|
1028 |
|
1029 |
/* Generic disk structures */
|
1030 |
case 0x80: /* TODO: AACS volume identifier */ |
1031 |
case 0x81: /* TODO: AACS media serial number */ |
1032 |
case 0x82: /* TODO: AACS media identifier */ |
1033 |
case 0x83: /* TODO: AACS media key block */ |
1034 |
case 0x90: /* TODO: List of recognized format layers */ |
1035 |
case 0xc0: /* TODO: Write protection status */ |
1036 |
default:
|
1037 |
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, |
1038 |
ASC_INV_FIELD_IN_CMD_PACKET); |
1039 |
break;
|
1040 |
} |
1041 |
} |
1042 |
|
1043 |
static void cmd_set_speed(IDEState *s, uint8_t* buf) |
1044 |
{ |
1045 |
ide_atapi_cmd_ok(s); |
1046 |
} |
1047 |
|
1048 |
enum {
|
1049 |
/*
|
1050 |
* Only commands flagged as ALLOW_UA are allowed to run under a
|
1051 |
* unit attention condition. (See MMC-5, section 4.1.6.1)
|
1052 |
*/
|
1053 |
ALLOW_UA = 0x01,
|
1054 |
|
1055 |
/*
|
1056 |
* Commands flagged with CHECK_READY can only execute if a medium is present.
|
1057 |
* Otherwise they report the Not Ready Condition. (See MMC-5, section
|
1058 |
* 4.1.8)
|
1059 |
*/
|
1060 |
CHECK_READY = 0x02,
|
1061 |
}; |
1062 |
|
1063 |
static const struct { |
1064 |
void (*handler)(IDEState *s, uint8_t *buf);
|
1065 |
int flags;
|
1066 |
} atapi_cmd_table[0x100] = {
|
1067 |
[ 0x00 ] = { cmd_test_unit_ready, CHECK_READY },
|
1068 |
[ 0x03 ] = { cmd_request_sense, ALLOW_UA },
|
1069 |
[ 0x12 ] = { cmd_inquiry, ALLOW_UA },
|
1070 |
[ 0x1a ] = { cmd_mode_sense, /* (6) */ 0 }, |
1071 |
[ 0x1b ] = { cmd_start_stop_unit, 0 }, /* [1] */ |
1072 |
[ 0x1e ] = { cmd_prevent_allow_medium_removal, 0 }, |
1073 |
[ 0x25 ] = { cmd_read_cdvd_capacity, CHECK_READY },
|
1074 |
[ 0x28 ] = { cmd_read, /* (10) */ CHECK_READY }, |
1075 |
[ 0x2b ] = { cmd_seek, CHECK_READY },
|
1076 |
[ 0x43 ] = { cmd_read_toc_pma_atip, CHECK_READY },
|
1077 |
[ 0x46 ] = { cmd_get_configuration, ALLOW_UA },
|
1078 |
[ 0x4a ] = { cmd_get_event_status_notification, ALLOW_UA },
|
1079 |
[ 0x5a ] = { cmd_mode_sense, /* (10) */ 0 }, |
1080 |
[ 0xa8 ] = { cmd_read, /* (12) */ CHECK_READY }, |
1081 |
[ 0xad ] = { cmd_read_dvd_structure, CHECK_READY },
|
1082 |
[ 0xbb ] = { cmd_set_speed, 0 }, |
1083 |
[ 0xbd ] = { cmd_mechanism_status, 0 }, |
1084 |
[ 0xbe ] = { cmd_read_cd, CHECK_READY },
|
1085 |
/* [1] handler detects and reports not ready condition itself */
|
1086 |
}; |
1087 |
|
1088 |
void ide_atapi_cmd(IDEState *s)
|
1089 |
{ |
1090 |
uint8_t *buf; |
1091 |
|
1092 |
buf = s->io_buffer; |
1093 |
#ifdef DEBUG_IDE_ATAPI
|
1094 |
{ |
1095 |
int i;
|
1096 |
printf("ATAPI limit=0x%x packet:", s->lcyl | (s->hcyl << 8)); |
1097 |
for(i = 0; i < ATAPI_PACKET_SIZE; i++) { |
1098 |
printf(" %02x", buf[i]);
|
1099 |
} |
1100 |
printf("\n");
|
1101 |
} |
1102 |
#endif
|
1103 |
/*
|
1104 |
* If there's a UNIT_ATTENTION condition pending, only command flagged with
|
1105 |
* ALLOW_UA are allowed to complete. with other commands getting a CHECK
|
1106 |
* condition response unless a higher priority status, defined by the drive
|
1107 |
* here, is pending.
|
1108 |
*/
|
1109 |
if (s->sense_key == SENSE_UNIT_ATTENTION &&
|
1110 |
!(atapi_cmd_table[s->io_buffer[0]].flags & ALLOW_UA)) {
|
1111 |
ide_atapi_cmd_check_status(s); |
1112 |
return;
|
1113 |
} |
1114 |
/*
|
1115 |
* When a CD gets changed, we have to report an ejected state and
|
1116 |
* then a loaded state to guests so that they detect tray
|
1117 |
* open/close and media change events. Guests that do not use
|
1118 |
* GET_EVENT_STATUS_NOTIFICATION to detect such tray open/close
|
1119 |
* states rely on this behavior.
|
1120 |
*/
|
1121 |
if (!s->tray_open && bdrv_is_inserted(s->bs) && s->cdrom_changed) {
|
1122 |
ide_atapi_cmd_error(s, SENSE_NOT_READY, ASC_MEDIUM_NOT_PRESENT); |
1123 |
|
1124 |
s->cdrom_changed = 0;
|
1125 |
s->sense_key = SENSE_UNIT_ATTENTION; |
1126 |
s->asc = ASC_MEDIUM_MAY_HAVE_CHANGED; |
1127 |
return;
|
1128 |
} |
1129 |
|
1130 |
/* Report a Not Ready condition if appropriate for the command */
|
1131 |
if ((atapi_cmd_table[s->io_buffer[0]].flags & CHECK_READY) && |
1132 |
(!media_present(s) || !bdrv_is_inserted(s->bs))) |
1133 |
{ |
1134 |
ide_atapi_cmd_error(s, SENSE_NOT_READY, ASC_MEDIUM_NOT_PRESENT); |
1135 |
return;
|
1136 |
} |
1137 |
|
1138 |
/* Execute the command */
|
1139 |
if (atapi_cmd_table[s->io_buffer[0]].handler) { |
1140 |
atapi_cmd_table[s->io_buffer[0]].handler(s, buf);
|
1141 |
return;
|
1142 |
} |
1143 |
|
1144 |
ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, ASC_ILLEGAL_OPCODE); |
1145 |
} |