diff options
Diffstat (limited to 'drivers/ide/ide-taskfile.c')
| -rw-r--r-- | drivers/ide/ide-taskfile.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c index b1806ed46175..4aa6223c11be 100644 --- a/drivers/ide/ide-taskfile.c +++ b/drivers/ide/ide-taskfile.c @@ -23,6 +23,23 @@ #include <asm/uaccess.h> #include <asm/io.h> +void ide_tf_readback(ide_drive_t *drive, struct ide_cmd *cmd) +{ + ide_hwif_t *hwif = drive->hwif; + const struct ide_tp_ops *tp_ops = hwif->tp_ops; + + /* Be sure we're looking at the low order bytes */ + tp_ops->write_devctl(hwif, ATA_DEVCTL_OBS); + + tp_ops->tf_read(drive, &cmd->tf, cmd->valid.in.tf); + + if (cmd->tf_flags & IDE_TFLAG_LBA48) { + tp_ops->write_devctl(hwif, ATA_HOB | ATA_DEVCTL_OBS); + + tp_ops->tf_read(drive, &cmd->hob, cmd->valid.in.hob); + } +} + void ide_tf_dump(const char *s, struct ide_cmd *cmd) { #ifdef DEBUG |