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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-09 18:41:31 -0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-09 18:41:31 -0400
commit3cb7396b7b26585b1ab7c1a8ca554ec103da5d37 (patch)
tree94720199f016045fe2a204ac8fd26c0029f4544c /drivers/ide/pci/jmicron.c
parentd0b6e0e380d6a32d479120a8b5d98cdff936ec8c (diff)
parent317a46a200e6514a1acf50ed30291160185a5c73 (diff)
Merge master.kernel.org:/pub/scm/linux/kernel/git/bart/ide-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/bart/ide-2.6: ide: fix PIO setup on resume for ATAPI devices ide: legacy PCI bus order probing fixes ide: add ide_proc_register_port() ide: add "initializing" argument to ide_register_hw() ide: cable detection fixes (take 2) ide: move IDE settings handling to ide-proc.c ide: split off ioctl handling from IDE settings (v2) ide: make /proc/ide/ optional ide: add ide_tune_dma() helper ide: rework the code for selecting the best DMA transfer mode (v3) ide: fix UDMA/MWDMA/SWDMA masks (v3)
Diffstat (limited to 'drivers/ide/pci/jmicron.c')
-rw-r--r--drivers/ide/pci/jmicron.c40
1 files changed, 2 insertions, 38 deletions
diff --git a/drivers/ide/pci/jmicron.c b/drivers/ide/pci/jmicron.c
index be4fc96c29e0..76ed25147229 100644
--- a/drivers/ide/pci/jmicron.c
+++ b/drivers/ide/pci/jmicron.c
@@ -22,22 +22,6 @@ typedef enum {
22} port_type; 22} port_type;
23 23
24/** 24/**
25 * jmicron_ratemask - Compute available modes
26 * @drive: IDE drive
27 *
28 * Compute the available speeds for the devices on the interface. This
29 * is all modes to ATA133 clipped by drive cable setup.
30 */
31
32static u8 jmicron_ratemask(ide_drive_t *drive)
33{
34 u8 mode = 4;
35 if (!eighty_ninty_three(drive))
36 mode = min(mode, (u8)1);
37 return mode;
38}
39
40/**
41 * ata66_jmicron - Cable check 25 * ata66_jmicron - Cable check
42 * @hwif: IDE port 26 * @hwif: IDE port
43 * 27 *
@@ -129,32 +113,12 @@ static void config_jmicron_chipset_for_pio (ide_drive_t *drive, byte set_speed)
129 113
130static int jmicron_tune_chipset (ide_drive_t *drive, byte xferspeed) 114static int jmicron_tune_chipset (ide_drive_t *drive, byte xferspeed)
131{ 115{
132 116 u8 speed = ide_rate_filter(drive, xferspeed);
133 u8 speed = ide_rate_filter(jmicron_ratemask(drive), xferspeed);
134 117
135 return ide_config_drive_speed(drive, speed); 118 return ide_config_drive_speed(drive, speed);
136} 119}
137 120
138/** 121/**
139 * config_chipset_for_dma - configure for DMA
140 * @drive: drive to configure
141 *
142 * As the JMicron snoops for timings all we actually need to do is
143 * make sure we don't set an invalid mode.
144 */
145
146static int config_chipset_for_dma (ide_drive_t *drive)
147{
148 u8 speed = ide_dma_speed(drive, jmicron_ratemask(drive));
149
150 if (!speed)
151 return 0;
152
153 jmicron_tune_chipset(drive, speed);
154 return ide_dma_enable(drive);
155}
156
157/**
158 * jmicron_configure_drive_for_dma - set up for DMA transfers 122 * jmicron_configure_drive_for_dma - set up for DMA transfers
159 * @drive: drive we are going to set up 123 * @drive: drive we are going to set up
160 * 124 *
@@ -164,7 +128,7 @@ static int config_chipset_for_dma (ide_drive_t *drive)
164 128
165static int jmicron_config_drive_for_dma (ide_drive_t *drive) 129static int jmicron_config_drive_for_dma (ide_drive_t *drive)
166{ 130{
167 if (ide_use_dma(drive) && config_chipset_for_dma(drive)) 131 if (ide_tune_dma(drive))
168 return 0; 132 return 0;
169 133
170 config_jmicron_chipset_for_pio(drive, 1); 134 config_jmicron_chipset_for_pio(drive, 1);