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-rw-r--r--drivers/ide/pci/serverworks.c40
1 files changed, 27 insertions, 13 deletions
diff --git a/drivers/ide/pci/serverworks.c b/drivers/ide/pci/serverworks.c
index b04c99059c05..d9c4fd1ae996 100644
--- a/drivers/ide/pci/serverworks.c
+++ b/drivers/ide/pci/serverworks.c
@@ -1,5 +1,5 @@
/*
- * linux/drivers/ide/pci/serverworks.c Version 0.10 Jun 2 2007
+ * linux/drivers/ide/pci/serverworks.c Version 0.11 Jun 2 2007
*
* Copyright (C) 1998-2000 Michel Aubry
* Copyright (C) 1998-2000 Andrzej Krzysztofowicz
@@ -176,35 +176,49 @@ static int svwks_tune_chipset (ide_drive_t *drive, u8 xferspeed)
return 0;
} else if ((dma_timing) &&
((dma_stat&(1<<(5+unit)))==(1<<(5+unit)))) {
- u8 dmaspeed = dma_timing;
+ u8 dmaspeed;
- if ((dmaspeed & 0x20) == 0x20)
+ switch (dma_timing & 0x77) {
+ case 0x20:
dmaspeed = XFER_MW_DMA_2;
- else if ((dmaspeed & 0x21) == 0x21)
+ break;
+ case 0x21:
dmaspeed = XFER_MW_DMA_1;
- else if ((dmaspeed & 0x77) == 0x77)
+ break;
+ case 0x77:
dmaspeed = XFER_MW_DMA_0;
- else
+ break;
+ default:
goto dma_pio;
+ }
+
drive->current_speed = drive->init_speed = dmaspeed;
return 0;
}
dma_pio:
if (pio_timing) {
- u8 piospeed = pio_timing;
+ u8 piospeed;
- if ((piospeed & 0x20) == 0x20)
+ switch (pio_timing & 0x7f) {
+ case 0x20:
piospeed = XFER_PIO_4;
- else if ((piospeed & 0x22) == 0x22)
+ break;
+ case 0x22:
piospeed = XFER_PIO_3;
- else if ((piospeed & 0x34) == 0x34)
+ break;
+ case 0x34:
piospeed = XFER_PIO_2;
- else if ((piospeed & 0x47) == 0x47)
+ break;
+ case 0x47:
piospeed = XFER_PIO_1;
- else if ((piospeed & 0x5d) == 0x5d)
+ break;
+ case 0x5d:
piospeed = XFER_PIO_0;
- else
+ break;
+ default:
goto oem_setup_failed;
+ }
+
drive->current_speed = drive->init_speed = piospeed;
return 0;
}
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