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Use block read and block write instead of regular read and write commands. Mounting the device read-only now works. Writing

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is still not working.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38405 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Adrien Destugues
2010-08-27 17:54:04 +00:00
parent 87bfae8987
commit 027fabed60
1 changed files with 23 additions and 12 deletions
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src/add-ons/kernel/drivers/disk/usb/usb_floppy/usb_disk.cpp
+23 -12
View File
@@ -837,18 +837,23 @@ usb_disk_block_read(device_lun *lun, uint32 blockPosition, uint16 blockCount,
uint8 commandBlock[12];
memset(commandBlock, 0, sizeof(commandBlock));
commandBlock[0] = SCSI_READ_10;
commandBlock[0] = 0xA8;
commandBlock[1] = lun->logical_unit_number << 5;
commandBlock[2] = blockPosition >> 24;
commandBlock[3] = blockPosition >> 16;
commandBlock[4] = blockPosition >> 8;
commandBlock[5] = blockPosition;
commandBlock[7] = *length >> 8;
commandBlock[8] = *length;
// TODO: blockCount ?
commandBlock[6] = blockCount >> 24;
commandBlock[7] = blockCount >> 16;
commandBlock[8] = blockCount >> 8;
commandBlock[9] = blockCount;
status_t result = usb_disk_operation(lun, commandBlock, buffer, length,
true);
status_t result;
do {
snooze(10000);
result = usb_disk_operation(lun, commandBlock, buffer, length,
true);
} while (result != B_OK);
return result;
}
@@ -860,18 +865,24 @@ usb_disk_block_write(device_lun *lun, uint32 blockPosition, uint16 blockCount,
uint8 commandBlock[12];
memset(commandBlock, 0, sizeof(commandBlock));
commandBlock[0] = SCSI_WRITE_10;
commandBlock[0] = 0xAA;
commandBlock[1] = lun->logical_unit_number << 5;
commandBlock[2] = blockPosition >> 24;
commandBlock[3] = blockPosition >> 16;
commandBlock[4] = blockPosition >> 8;
commandBlock[5] = blockPosition;
commandBlock[7] = *length >> 8;
commandBlock[8] = *length;
// TOOD: blockCount ?
commandBlock[6] = blockCount >> 24;
commandBlock[7] = blockCount >> 16;
commandBlock[8] = blockCount >> 8;
commandBlock[9] = blockCount;
status_t result;
do {
snooze(10000);
result = usb_disk_operation(lun, commandBlock, buffer, length,
true);
} while (result != B_OK);
status_t result = usb_disk_operation(lun, commandBlock, buffer, length,
false);
if (result == B_OK)
lun->should_sync = true;
return result;