diff options
Diffstat (limited to 'drivers/ide/ide-timing.h')
| -rw-r--r-- | drivers/ide/ide-timing.h | 24 |
1 files changed, 7 insertions, 17 deletions
diff --git a/drivers/ide/ide-timing.h b/drivers/ide/ide-timing.h index 724879910ac8..a401d8f82b50 100644 --- 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_t *drive, u8 speed, 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_t *drive, u8 speed, * 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); |