Hi All,
Currently, I am developing a EFI driver which will communicate with my IDE
controller and dump ModelName,sectors_per_track,heads and Firmware version.
My EFI driver able to communicate and it is identified two IDE channel also
detect the connected device as Hard disk. I have no issues it is working as
expecting.
I have sent IDENTIFY command to the device to dump those fields with the help
of EFI_IDENTIFY_DATA.
if (DeviceType == EfiIdeHarddisk) {
Status = AtaIdentify (Instance, IdeChannel, IdeDevice, &Buffer, NULL);
The above snippet code AtaIdentify() returns Status as success . So I assumed
the Buffer will contains the output of IDENTIFY command.
I have tried to dump ModelName [ ((ATA5_IDENTIFY_DATA
*)(&Buffer.AtaData))->ModelName ] which returns unrelated values. Also other
values sectors_per_track,heads were invalid values.
IdeMode.c :
//
// Send IDENTIFY cmd to the device to test if it is really attached.
//
if (DeviceType == EfiIdeHarddisk) {
Status = AtaIdentify (Instance, IdeChannel, IdeDevice, &Buffer, NULL);
//
// if identifying ata device is failure, then try to send identify packet
cmd.
//
if (EFI_ERROR (Status)) {
REPORT_STATUS_CODE (EFI_PROGRESS_CODE, (EFI_PERIPHERAL_FIXED_MEDIA |
EFI_P_EC_NOT_DETECTED));
DeviceType = EfiIdeCdrom;
Status = AtaIdentifyPacket (Instance, IdeChannel, IdeDevice,
&Buffer, NULL);
}
} else {
Status = AtaIdentifyPacket (Instance, IdeChannel, IdeDevice, &Buffer,
NULL);
//
// if identifying atapi device is failure, then try to send identify cmd.
//
if (EFI_ERROR (Status)) {
DeviceType = EfiIdeHarddisk;
Status = AtaIdentify (Instance, IdeChannel, IdeDevice, &Buffer,
NULL);
}
}
It would be useful for me ,if anyone clarify my doubts. If possible please
share your inputs to dump those fields.
Thanks
Murali.S
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