Revision 091d055b hw/ide.c
| b/hw/ide.c | ||
|---|---|---|
| 1715 | 1715 |
case GPCMD_GET_CONFIGURATION: |
| 1716 | 1716 |
{
|
| 1717 | 1717 |
uint32_t len; |
| 1718 |
uint8_t index = 0; |
|
| 1718 | 1719 |
|
| 1719 | 1720 |
/* only feature 0 is supported */ |
| 1720 | 1721 |
if (packet[2] != 0 || packet[3] != 0) {
|
| ... | ... | |
| 1725 | 1726 |
|
| 1726 | 1727 |
/* XXX: could result in alignment problems in some architectures */ |
| 1727 | 1728 |
max_len = ube16_to_cpu(packet + 7); |
| 1729 |
|
|
| 1728 | 1730 |
/* |
| 1729 |
* XXX: avoid overflow for io_buffer if max_len is bigger than the
|
|
| 1730 |
* size of that buffer (dimensioned to max number of sectors
|
|
| 1731 |
* to transfer at once) |
|
| 1731 |
* XXX: avoid overflow for io_buffer if max_len is bigger than |
|
| 1732 |
* the size of that buffer (dimensioned to max number of
|
|
| 1733 |
* sectors to transfer at once)
|
|
| 1732 | 1734 |
* |
| 1733 |
* Only a problem if the feature/profiles grow exponentially.
|
|
| 1735 |
* Only a problem if the feature/profiles grow. |
|
| 1734 | 1736 |
*/ |
| 1735 | 1737 |
if (max_len > 512) /* XXX: assume 1 sector */ |
| 1736 | 1738 |
max_len = 512; |
| ... | ... | |
| 1743 | 1745 |
* XXX: fails to detect correctly DVDs with less data burned |
| 1744 | 1746 |
* than what a CD can hold |
| 1745 | 1747 |
*/ |
| 1746 |
if ((s -> nb_sectors)) {
|
|
| 1747 |
if ((s -> nb_sectors > CD_MAX_SECTORS))
|
|
| 1748 |
if (s -> nb_sectors) {
|
|
| 1749 |
if (s -> nb_sectors > CD_MAX_SECTORS)
|
|
| 1748 | 1750 |
cpu_to_ube16(buf + 6, MMC_PROFILE_DVD_ROM); |
| 1749 | 1751 |
else |
| 1750 | 1752 |
cpu_to_ube16(buf + 6, MMC_PROFILE_CD_ROM); |
| 1751 | 1753 |
} |
| 1752 | 1754 |
|
| 1753 |
len = 8; /* header completed */ |
|
| 1754 |
if (max_len > len) {
|
|
| 1755 |
uint8_t index = 0; |
|
| 1756 |
|
|
| 1757 |
buf[10] = 0x02 | 0x01; /* persistent and current */ |
|
| 1758 |
len += 4; /* header */ |
|
| 1759 |
len += ide_atapi_set_profile(buf, &index, MMC_PROFILE_DVD_ROM); |
|
| 1760 |
len += ide_atapi_set_profile(buf, &index, MMC_PROFILE_CD_ROM); |
|
| 1761 |
} |
|
| 1755 |
buf[10] = 0x02 | 0x01; /* persistent and current */ |
|
| 1756 |
len = 12; /* headers: 8 + 4 */ |
|
| 1757 |
len += ide_atapi_set_profile(buf, &index, MMC_PROFILE_DVD_ROM); |
|
| 1758 |
len += ide_atapi_set_profile(buf, &index, MMC_PROFILE_CD_ROM); |
|
| 1762 | 1759 |
cpu_to_ube32(buf, len - 4); /* data length */ |
| 1763 | 1760 |
|
| 1764 | 1761 |
ide_atapi_cmd_reply(s, len, max_len); |
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