BOOL
CDisk::SendIOCommand(
DWORD dwStartSector,
DWORD dwNumberOfSectors,
BYTE bCmd
)
{
DEBUGMSG(ZONE_IO, (TEXT(
"Atapi!CDisk::SendIOCommand> sector(%d), sectors left(%x), command(%x)\r\n"
), dwStartSector,dwNumberOfSectors,bCmd));
if (ZONE_CELOG) CeLogData(TRUE, CELID_ATAPI_IOCOMMAND, &bCmd, sizeof(bCmd), 0, CELZONE_ALWAYSON, 0, FALSE);
SelectDevice();
if (WaitOnBusy(FALSE)) {
DEBUGMSG(ZONE_IO, (TEXT(
"Atapi!CDisk::SendIOCommand> Failed to send command; status(%x), error(%x)\r\n"
), GetAltStatus(),GetError()));
return FALSE;
}
// to transfer 256 sectors, set number of sectors to 0
if (dwNumberOfSectors == MAX_SECT_PER_COMMAND) {
dwNumberOfSectors = 0;
}
WriteSectorCount((BYTE)dwNumberOfSectors);
if (m_fLBAMode == TRUE) {
WriteSectorNumber( (BYTE)dwStartSector);
WriteLowCount((BYTE)(dwStartSector >> 8));
WriteHighCount((BYTE)(dwStartSector >> 16));
WriteDriveHeadReg((BYTE)((dwStartSector >> 24) | ATA_HEAD_LBA_MODE) | ((m_dwDevice == 0 ) ? ATA_HEAD_DRIVE_1 : ATA_HEAD_DRIVE_2));
}
BOOL
CDisk::SendIOCommand(
DWORD dwStartSector,
DWORD dwNumberOfSectors,
BYTE bCmd
)
{
DEBUGMSG(ZONE_IO, (TEXT(
"Atapi!CDisk::SendIOCommand> sector(%d), sectors left(%x), command(%x)\r\n"
), dwStartSector,dwNumberOfSectors,bCmd));
RETAILMSG(0, (TEXT(
"Atapi!CDisk::SendIOCommand> sector(%d), sectors left(%x), command(%x)\r\n"
), dwStartSector,dwNumberOfSectors,bCmd));
if (ZONE_CELOG) CeLogData(TRUE, CELID_ATAPI_IOCOMMAND, &bCmd, sizeof(bCmd), 0, CELZONE_ALWAYSON, 0, FALSE);
SelectDevice();
if (WaitOnBusy(FALSE)) {
DEBUGMSG(ZONE_IO, (TEXT(
"Atapi!CDisk::SendIOCommand> Failed to send command; status(%x), error(%x)\r\n"
), GetAltStatus(),GetError()));
RETAILMSG(1, (TEXT(
"Atapi!CDisk::SendIOCommand> Failed to send command; status(%x), error(%x)\r\n"
), GetAltStatus(),GetError()));
return FALSE;
}
if (m_fUseLBA48) {
ASSERT(dwNumberOfSectors <= MAX_SECT_PER_EXT_COMMAND);
// to transfer 65536 sectors, set number of sectors to 0
if (dwNumberOfSectors == MAX_SECT_PER_EXT_COMMAND) {
dwNumberOfSectors = 0;
}
WriteSectorCount((BYTE)(dwNumberOfSectors >> 8)); // Sector Count 15:8
WriteSectorCount((BYTE)(dwNumberOfSectors)); // Sector Count 7:0
// CE supports only 32-bit LBA as of now. Therefore, clear the upper 16 bits of LBA.
WriteHighCount(0); // LBA 47:40
WriteLowCount(0); // LBA 39:32
WriteSectorNumber((BYTE)(dwStartSector >> 24)); // LBA 31:24
WriteHighCount((BYTE)(dwStartSector >> 16)); // LBA 23:16
WriteLowCount((BYTE)(dwStartSector >> 8)); // LBA 15:8
WriteSectorNumber((BYTE)dwStartSector); // LBA 7:0
WriteDriveHeadReg( ATA_HEAD_LBA_MODE | ((m_dwDevice == 0 ) ? ATA_HEAD_DRIVE_1 : ATA_HEAD_DRIVE_2));
}
else {