[PATCH 05/21] ide: remove XFER_* masks from ide-timing.h

Bartlomiej Zolnierkiewicz
2008-05-28T21:44:29Z

* Check requested xfer mode against xfer modes instead of XFER_* masks
in ide_timing_compute() and cs5535.c::cs5535_set_speed().

* Remove XFER_[MODE,MWDMA,EPIO,PIO] masks.

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
drivers/ide/ide-timing.h | 24 +++++++-----------------
drivers/ide/pci/cs5535.c | 4 +---
2 files changed, 8 insertions(+), 20 deletions(-)

Index: b/drivers/ide/ide-timing.h
===================================================================
--- a/drivers/ide/ide-timing.h
+++ b/drivers/ide/ide-timing.h
@@ -70,11 +70,6 @@ static struct ide_timing ide_timing[] =
#define ENOUGH(v,unit) (((v)-1)/(unit)+1)
#define EZ(v,unit) ((v)?ENOUGH(v,unit):0)

-#define XFER_MODE 0xf0
-#define XFER_MWDMA 0x20
-#define XFER_EPIO 0x01
-#define XFER_PIO 0x00
-
static void ide_timing_quantize(struct ide_timing *t, struct ide_timing *q, int T, int UT)
{
q->setup = EZ(t->setup * 1000, T);
@@ -137,17 +132,12 @@ static int ide_timing_compute(ide_drive_

memset(&p, 0, sizeof(p));

- switch (speed & XFER_MODE) {
-
- case XFER_PIO:
- if (speed <= XFER_PIO_2) p.cycle = p.cyc8b = id->eide_pio;
- else p.cycle = p.cyc8b = id->eide_pio_iordy;
- break;
-
- case XFER_MWDMA:
- p.cycle = id->eide_dma_min;
- break;
- }
+ if (speed <= XFER_PIO_2)
+ p.cycle = p.cyc8b = id->eide_pio;
+ else if (speed <= XFER_PIO_5)
+ p.cycle = p.cyc8b = id->eide_pio_iordy;
+ else if (speed >= XFER_MW_DMA_0 && speed <= XFER_MW_DMA_2)
+ p.cycle = id->eide_dma_min;

ide_timing_merge(&p, t, t, IDE_TIMING_CYCLE | IDE_TIMING_CYC8B);
}
@@ -164,7 +154,7 @@ static int ide_timing_compute(ide_drive_
* slower/equal than the fastest PIO timing.
*/

- if ((speed & XFER_MODE) != XFER_PIO) {
+ if (speed >= XFER_SW_DMA_0) {
u8 pio = ide_get_best_pio_mode(drive, 255, 5);
ide_timing_compute(drive, XFER_PIO_0 + pio, &p, T, UT);
ide_timing_merge(&p, t, t, IDE_TIMING_ALL);
Index: b/drivers/ide/pci/cs5535.c
===================================================================
--- a/drivers/ide/pci/cs5535.c
+++ b/drivers/ide/pci/cs5535.c
@@ -75,13 +75,11 @@ static unsigned int cs5535_udma_timings[
*/
static void cs5535_set_speed(ide_drive_t *drive, const u8 speed)
{
-
u32 reg = 0, dummy;
int unit = drive->select.b.unit;

-
/* Set the PIO timings */
- if ((speed & XFER_MODE) == XFER_PIO) {
+ if (speed < XFER_SW_DMA_0) {
ide_drive_t *pair = ide_get_paired_drive(drive);
u8 cmd, pioa;