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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-10-10 22:39:19 +0200
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-10-10 22:39:19 +0200
commit4dde4492d850a4c9bcaa92e5bd7f4eebe3e2f5ab (patch)
treeee3be70390e4c617b44329edef0a05039f59c81a /drivers/ide/ide-timings.c
parent5b90e990928919ae411a68b865e8a6ecac09a603 (diff)
downloadlinux-4dde4492d850a4c9bcaa92e5bd7f4eebe3e2f5ab.tar.bz2
ide: make drive->id an union (take 2)
Make drive->id an unnamed union so id can be accessed either by using 'u16 *id' or 'struct hd_driveid *driveid'. Then convert all existing drive->id users accordingly (using 'u16 *id' when possible). This is an intermediate step to make ide 'struct hd_driveid'-free. While at it: - Add missing KERN_CONTs in it821x.c. - Use ATA_ID_WORDS and ATA_ID_*_LEN defines. - Remove unnecessary checks for drive->id. - s/drive_table/table/ in ide_in_drive_list(). - Cleanup ide_config_drive_speed() a bit. - s/drive1/dev1/ & s/drive0/dev0/ in ide_undecoded_slave(). v2: Fix typo in drivers/ide/ppc/pmac.c. (From Stephen Rothwell) There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide/ide-timings.c')
-rw-r--r--drivers/ide/ide-timings.c21
1 files changed, 10 insertions, 11 deletions
diff --git a/drivers/ide/ide-timings.c b/drivers/ide/ide-timings.c
index 8c2f8327f487..d64f345f2fc0 100644
--- a/drivers/ide/ide-timings.c
+++ b/drivers/ide/ide-timings.c
@@ -78,15 +78,15 @@ EXPORT_SYMBOL_GPL(ide_timing_find_mode);
u16 ide_pio_cycle_time(ide_drive_t *drive, u8 pio)
{
- struct hd_driveid *id = drive->id;
+ u16 *id = drive->id;
struct ide_timing *t = ide_timing_find_mode(XFER_PIO_0 + pio);
u16 cycle = 0;
- if (id->field_valid & 2) {
- if (id->capability & 8)
- cycle = id->eide_pio_iordy;
+ if (id[ATA_ID_FIELD_VALID] & 2) {
+ if (drive->driveid->capability & 8)
+ cycle = id[ATA_ID_EIDE_PIO_IORDY];
else
- cycle = id->eide_pio;
+ cycle = id[ATA_ID_EIDE_PIO];
/* conservative "downgrade" for all pre-ATA2 drives */
if (pio < 3 && cycle < t->cycle)
@@ -138,7 +138,7 @@ EXPORT_SYMBOL_GPL(ide_timing_merge);
int ide_timing_compute(ide_drive_t *drive, u8 speed,
struct ide_timing *t, int T, int UT)
{
- struct hd_driveid *id = drive->id;
+ u16 *id = drive->id;
struct ide_timing *s, p;
/*
@@ -157,16 +157,15 @@ int ide_timing_compute(ide_drive_t *drive, u8 speed,
* If the drive is an EIDE drive, it can tell us it needs extended
* PIO/MWDMA cycle timing.
*/
- if (id && id->field_valid & 2) { /* EIDE drive */
-
+ if (id[ATA_ID_FIELD_VALID] & 2) { /* EIDE drive */
memset(&p, 0, sizeof(p));
if (speed <= XFER_PIO_2)
- p.cycle = p.cyc8b = id->eide_pio;
+ p.cycle = p.cyc8b = id[ATA_ID_EIDE_PIO];
else if (speed <= XFER_PIO_5)
- p.cycle = p.cyc8b = id->eide_pio_iordy;
+ p.cycle = p.cyc8b = id[ATA_ID_EIDE_PIO_IORDY];
else if (speed >= XFER_MW_DMA_0 && speed <= XFER_MW_DMA_2)
- p.cycle = id->eide_dma_min;
+ p.cycle = id[ATA_ID_EIDE_DMA_MIN];
ide_timing_merge(&p, t, t, IDE_TIMING_CYCLE | IDE_TIMING_CYC8B);
}