diff options
Diffstat (limited to 'drivers/ide/legacy/q40ide.c')
| -rw-r--r-- | drivers/ide/legacy/q40ide.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/ide/legacy/q40ide.c b/drivers/ide/legacy/q40ide.c index f9210458aea0..6f535d00e638 100644 --- a/drivers/ide/legacy/q40ide.c +++ b/drivers/ide/legacy/q40ide.c @@ -72,7 +72,27 @@ static void q40_ide_setup_ports(hw_regs_t *hw, unsigned long base, hw->ack_intr = ack_intr; } +static void q40ide_input_data(ide_drive_t *drive, struct request *rq, + void *buf, unsigned int len) +{ + unsigned long data_addr = drive->hwif->io_ports.data_addr; + + if (drive->media == ide_disk && rq && rq->cmd_type == REQ_TYPE_FS) + return insw(data_addr, buf, (len + 1) / 2); + insw_swapw(data_addr, buf, (len + 1) / 2); +} + +static void q40ide_output_data(ide_drive_t *drive, struct request *rq, + void *buf, unsigned int len) +{ + unsigned long data_addr = drive->hwif->io_ports.data_addr; + + if (drive->media == ide_disk && rq && rq->cmd_type == REQ_TYPE_FS) + return outsw(data_addr, buf, (len + 1) / 2); + + outsw_swapw(data_addr, buf, (len + 1) / 2); +} /* * the static array is needed to have the name reported in /proc/ioports, @@ -123,6 +143,10 @@ static int __init q40ide_init(void) ide_init_port_data(hwif, hwif->index); ide_init_port_hw(hwif, &hw); + /* Q40 has a byte-swapped IDE interface */ + hwif->input_data = q40ide_input_data; + hwif->output_data = q40ide_output_data; + idx[i] = hwif->index; } } |