aboutsummaryrefslogtreecommitdiff
path: root/drivers/ide/pci/jmicron.c
diff options
context:
space:
mode:
authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2007-05-10 00:01:08 +0200
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2007-05-10 00:01:08 +0200
commit2d5eaa6dd744a641e75503232a01f52d0768884c (patch)
tree0736bd00ea3bd032d601d0a676c998cb043b877a /drivers/ide/pci/jmicron.c
parent18137207236285989dfc0ee7f929b954199228f3 (diff)
ide: rework the code for selecting the best DMA transfer mode (v3)
Depends on the "ide: fix UDMA/MWDMA/SWDMA masks" patch. * add ide_hwif_t.udma_filter hook for filtering UDMA mask (use it in alim15x3, hpt366, siimage and serverworks drivers) * add ide_max_dma_mode() for finding best DMA mode for the device (loosely based on some older libata-core.c code) * convert ide_dma_speed() users to use ide_max_dma_mode() * make ide_rate_filter() take "ide_drive_t *drive" as an argument instead of "u8 mode" and teach it to how to use UDMA mask to do filtering * use ide_rate_filter() in hpt366 driver * remove no longer needed ide_dma_speed() and *_ratemask() * unexport eighty_ninty_three() v2: * rename ->filter_udma_mask to ->udma_filter [ Suggested by Sergei Shtylyov <sshtylyov@ru.mvista.com>. ] v3: * updated for scc_pata driver (fixes XFER_UDMA_6 filtering for user-space originated transfer mode change requests when 100MHz clock is used) Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide/pci/jmicron.c')
-rw-r--r--drivers/ide/pci/jmicron.c21
1 files changed, 2 insertions, 19 deletions
diff --git a/drivers/ide/pci/jmicron.c b/drivers/ide/pci/jmicron.c
index be4fc96c29e..dbb3c199cba 100644
--- a/drivers/ide/pci/jmicron.c
+++ b/drivers/ide/pci/jmicron.c
@@ -22,22 +22,6 @@ typedef enum {
} port_type;
/**
- * jmicron_ratemask - Compute available modes
- * @drive: IDE drive
- *
- * Compute the available speeds for the devices on the interface. This
- * is all modes to ATA133 clipped by drive cable setup.
- */
-
-static u8 jmicron_ratemask(ide_drive_t *drive)
-{
- u8 mode = 4;
- if (!eighty_ninty_three(drive))
- mode = min(mode, (u8)1);
- return mode;
-}
-
-/**
* ata66_jmicron - Cable check
* @hwif: IDE port
*
@@ -129,8 +113,7 @@ static void config_jmicron_chipset_for_pio (ide_drive_t *drive, byte set_speed)
static int jmicron_tune_chipset (ide_drive_t *drive, byte xferspeed)
{
-
- u8 speed = ide_rate_filter(jmicron_ratemask(drive), xferspeed);
+ u8 speed = ide_rate_filter(drive, xferspeed);
return ide_config_drive_speed(drive, speed);
}
@@ -145,7 +128,7 @@ static int jmicron_tune_chipset (ide_drive_t *drive, byte xferspeed)
static int config_chipset_for_dma (ide_drive_t *drive)
{
- u8 speed = ide_dma_speed(drive, jmicron_ratemask(drive));
+ u8 speed = ide_max_dma_mode(drive);
if (!speed)
return 0;