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[Qemu-devel] [PATCH v2 2/5] ide/atapi: Factor commands out
|
From: |
Kevin Wolf |
|
Subject: |
[Qemu-devel] [PATCH v2 2/5] ide/atapi: Factor commands out |
|
Date: |
Wed, 20 Apr 2011 13:30:12 +0200 |
In preparation for a table of function pointers, factor each command out from
ide_atapi_cmd() into its own function.
Signed-off-by: Kevin Wolf <address@hidden>
---
hw/ide/atapi.c | 837 +++++++++++++++++++++++++++++++-------------------------
1 files changed, 459 insertions(+), 378 deletions(-)
diff --git a/hw/ide/atapi.c b/hw/ide/atapi.c
index 25a636e..d161bf7 100644
--- a/hw/ide/atapi.c
+++ b/hw/ide/atapi.c
@@ -621,11 +621,453 @@ static void
handle_get_event_status_notification(IDEState *s,
ide_atapi_cmd_reply(s, used_len, max_len);
}
+static void cmd_request_sense(IDEState *s, uint8_t *buf)
+{
+ int max_len = buf[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);
+}
+
+static void cmd_inquiry(IDEState *s, uint8_t *buf)
+{
+ int max_len = buf[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);
+}
+
+static void cmd_get_configuration(IDEState *s, uint8_t *buf)
+{
+ uint32_t len;
+ uint8_t index = 0;
+ int max_len;
+
+ /* only feature 0 is supported */
+ if (buf[2] != 0 || buf[3] != 0) {
+ ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST,
+ ASC_INV_FIELD_IN_CMD_PACKET);
+ return;
+ }
+
+ /* XXX: could result in alignment problems in some architectures */
+ max_len = ube16_to_cpu(buf + 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);
+}
+
+static void cmd_mode_sense(IDEState *s, uint8_t *buf)
+{
+ int action, code;
+ int max_len;
+
+ if (buf[0] == GPCMD_MODE_SENSE_10) {
+ max_len = ube16_to_cpu(buf + 7);
+ } else {
+ max_len = buf[4];
+ }
+
+ action = buf[2] >> 6;
+ code = buf[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;
+ }
+ return;
+
+error_cmd:
+ ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, ASC_INV_FIELD_IN_CMD_PACKET);
+}
+
+static void cmd_test_unit_ready(IDEState *s, uint8_t *buf)
+{
+ if (bdrv_is_inserted(s->bs)) {
+ ide_atapi_cmd_ok(s);
+ } else {
+ ide_atapi_cmd_error(s, SENSE_NOT_READY, ASC_MEDIUM_NOT_PRESENT);
+ }
+}
+
+static void cmd_prevent_allow_medium_removal(IDEState *s, uint8_t* buf)
+{
+ bdrv_set_locked(s->bs, buf[4] & 1);
+ ide_atapi_cmd_ok(s);
+}
+
+static void cmd_read(IDEState *s, uint8_t* buf)
+{
+ int nb_sectors, lba;
+
+ if (buf[0] == GPCMD_READ_10) {
+ nb_sectors = ube16_to_cpu(buf + 7);
+ } else {
+ nb_sectors = ube32_to_cpu(buf + 6);
+ }
+
+ lba = ube32_to_cpu(buf + 2);
+ if (nb_sectors == 0) {
+ ide_atapi_cmd_ok(s);
+ return;
+ }
+
+ ide_atapi_cmd_read(s, lba, nb_sectors, 2048);
+}
+
+static void cmd_read_cd(IDEState *s, uint8_t* buf)
+{
+ int nb_sectors, lba, transfer_request;
+
+ nb_sectors = (buf[6] << 16) | (buf[7] << 8) | buf[8];
+ lba = ube32_to_cpu(buf + 2);
+
+ if (nb_sectors == 0) {
+ ide_atapi_cmd_ok(s);
+ return;
+ }
+
+ transfer_request = buf[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;
+ }
+}
+
+static void cmd_seek(IDEState *s, uint8_t* buf)
+{
+ 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);
+ return;
+ }
+
+ lba = ube32_to_cpu(buf + 2);
+ if (lba >= total_sectors) {
+ ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST, ASC_LOGICAL_BLOCK_OOR);
+ return;
+ }
+
+ ide_atapi_cmd_ok(s);
+}
+
+static void cmd_start_stop_unit(IDEState *s, uint8_t* buf)
+{
+ int start, eject, sense, err = 0;
+ start = buf[4] & 1;
+ eject = (buf[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;
+ }
+}
+
+static void cmd_mechanism_status(IDEState *s, uint8_t* buf)
+{
+ int max_len = ube16_to_cpu(buf + 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);
+}
+
+static void cmd_read_toc_pma_atip(IDEState *s, uint8_t* buf)
+{
+ int format, msf, start_track, len;
+ uint64_t total_sectors;
+ int max_len;
+
+ 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);
+ return;
+ }
+
+ max_len = ube16_to_cpu(buf + 7);
+ format = buf[9] >> 6;
+ msf = (buf[1] >> 1) & 1;
+ start_track = buf[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);
+ }
+}
+
+static void cmd_read_cdvd_capacity(IDEState *s, uint8_t* buf)
+{
+ 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);
+ return;
+ }
+
+ /* 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);
+}
+
+static void cmd_read_dvd_structure(IDEState *s, uint8_t* buf)
+{
+ int max_len;
+ int media = buf[1];
+ int format = buf[7];
+ int ret;
+
+ max_len = ube16_to_cpu(buf + 8);
+
+ if (format < 0xff) {
+ if (media_is_cd(s)) {
+ ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST,
+ ASC_INCOMPATIBLE_FORMAT);
+ return;
+ } else if (!media_present(s)) {
+ ide_atapi_cmd_error(s, SENSE_ILLEGAL_REQUEST,
+ ASC_INV_FIELD_IN_CMD_PACKET);
+ return;
+ }
+ }
+
+ 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, buf, 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;
+ }
+}
+
+static void cmd_set_speed(IDEState *s, uint8_t* buf)
+{
+ ide_atapi_cmd_ok(s);
+}
+
void ide_atapi_cmd(IDEState *s)
{
const uint8_t *packet;
uint8_t *buf;
- int max_len;
packet = s->io_buffer;
buf = s->io_buffer;
@@ -665,413 +1107,52 @@ void ide_atapi_cmd(IDEState *s)
}
switch(s->io_buffer[0]) {
case GPCMD_TEST_UNIT_READY:
- if (bdrv_is_inserted(s->bs)) {
- ide_atapi_cmd_ok(s);
- } else {
- ide_atapi_cmd_error(s, SENSE_NOT_READY,
- ASC_MEDIUM_NOT_PRESENT);
- }
+ cmd_test_unit_ready(s, buf);
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;
- }
- }
+ cmd_mode_sense(s, buf);
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);
+ cmd_request_sense(s, buf);
break;
case GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL:
- bdrv_set_locked(s->bs, packet[4] & 1);
- ide_atapi_cmd_ok(s);
+ cmd_prevent_allow_medium_removal(s, buf);
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);
- }
+ cmd_read(s, buf);
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;
- }
- }
+ cmd_read_cd(s, buf);
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);
- }
+ cmd_seek(s, buf);
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;
- }
- }
+ cmd_start_stop_unit(s, buf);
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);
- }
+ cmd_mechanism_status(s, buf);
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;
- }
- }
+ cmd_read_toc_pma_atip(s, buf);
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);
- }
+ cmd_read_cdvd_capacity(s, buf);
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;
- }
- }
+ cmd_read_dvd_structure(s, buf);
break;
case GPCMD_SET_SPEED:
- ide_atapi_cmd_ok(s);
+ cmd_set_speed(s, buf);
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);
+ cmd_inquiry(s, buf);
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;
- }
+ cmd_get_configuration(s, buf);
+ break;
case GPCMD_GET_EVENT_STATUS_NOTIFICATION:
handle_get_event_status_notification(s, buf, packet);
break;
--
1.7.2.3