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path: root/drivers/ide/trm290.c
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Diffstat (limited to 'drivers/ide/trm290.c')
-rw-r--r--drivers/ide/trm290.c64
1 files changed, 33 insertions, 31 deletions
diff --git a/drivers/ide/trm290.c b/drivers/ide/trm290.c
index 1c09e549c423..4b42ca091534 100644
--- a/drivers/ide/trm290.c
+++ b/drivers/ide/trm290.c
@@ -171,58 +171,51 @@ static void trm290_prepare_drive (ide_drive_t *drive, unsigned int use_dma)
local_irq_restore(flags);
}
-static void trm290_selectproc (ide_drive_t *drive)
+static void trm290_dev_select(ide_drive_t *drive)
{
trm290_prepare_drive(drive, !!(drive->dev_flags & IDE_DFLAG_USING_DMA));
-}
-static void trm290_dma_exec_cmd(ide_drive_t *drive, u8 command)
-{
- ide_execute_command(drive, command, &ide_dma_intr, WAIT_CMD, NULL);
+ outb(drive->select | ATA_DEVICE_OBS, drive->hwif->io_ports.device_addr);
}
-static int trm290_dma_setup(ide_drive_t *drive)
+static int trm290_dma_check(ide_drive_t *drive, struct ide_cmd *cmd)
{
- ide_hwif_t *hwif = drive->hwif;
- struct request *rq = hwif->rq;
- unsigned int count, rw;
-
- if (rq_data_dir(rq)) {
+ if (cmd->tf_flags & IDE_TFLAG_WRITE) {
#ifdef TRM290_NO_DMA_WRITES
/* always use PIO for writes */
- trm290_prepare_drive(drive, 0); /* select PIO xfer */
return 1;
#endif
- rw = 1;
- } else
- rw = 2;
+ }
+ return 0;
+}
+
+static int trm290_dma_setup(ide_drive_t *drive, struct ide_cmd *cmd)
+{
+ ide_hwif_t *hwif = drive->hwif;
+ unsigned int count, rw = (cmd->tf_flags & IDE_TFLAG_WRITE) ? 1 : 2;
- if (!(count = ide_build_dmatable(drive, rq))) {
+ count = ide_build_dmatable(drive, cmd);
+ if (count == 0)
/* try PIO instead of DMA */
- trm290_prepare_drive(drive, 0); /* select PIO xfer */
return 1;
- }
- /* select DMA xfer */
- trm290_prepare_drive(drive, 1);
+
outl(hwif->dmatable_dma | rw, hwif->dma_base);
- drive->waiting_for_dma = 1;
/* start DMA */
outw(count * 2 - 1, hwif->dma_base + 2);
+
return 0;
}
static void trm290_dma_start(ide_drive_t *drive)
{
+ trm290_prepare_drive(drive, 1);
}
static int trm290_dma_end(ide_drive_t *drive)
{
- u16 status;
+ u16 status = inw(drive->hwif->dma_base + 2);
- drive->waiting_for_dma = 0;
- /* purge DMA mappings */
- ide_destroy_dmatable(drive);
- status = inw(drive->hwif->dma_base + 2);
+ trm290_prepare_drive(drive, 0);
return status != 0x00ff;
}
@@ -307,25 +300,34 @@ static void __devinit init_hwif_trm290(ide_hwif_t *hwif)
#endif
}
-static const struct ide_port_ops trm290_port_ops = {
- .selectproc = trm290_selectproc,
+static const struct ide_tp_ops trm290_tp_ops = {
+ .exec_command = ide_exec_command,
+ .read_status = ide_read_status,
+ .read_altstatus = ide_read_altstatus,
+ .write_devctl = ide_write_devctl,
+
+ .dev_select = trm290_dev_select,
+ .tf_load = ide_tf_load,
+ .tf_read = ide_tf_read,
+
+ .input_data = ide_input_data,
+ .output_data = ide_output_data,
};
static struct ide_dma_ops trm290_dma_ops = {
.dma_host_set = trm290_dma_host_set,
.dma_setup = trm290_dma_setup,
- .dma_exec_cmd = trm290_dma_exec_cmd,
.dma_start = trm290_dma_start,
.dma_end = trm290_dma_end,
.dma_test_irq = trm290_dma_test_irq,
.dma_lost_irq = ide_dma_lost_irq,
- .dma_timeout = ide_dma_timeout,
+ .dma_check = trm290_dma_check,
};
static const struct ide_port_info trm290_chipset __devinitdata = {
.name = DRV_NAME,
.init_hwif = init_hwif_trm290,
- .port_ops = &trm290_port_ops,
+ .tp_ops = &trm290_tp_ops,
.dma_ops = &trm290_dma_ops,
.host_flags = IDE_HFLAG_TRM290 |
IDE_HFLAG_NO_ATAPI_DMA |