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Subject[PATCH 18/19] ide: add ide_use_fast_pio() helper
[PATCH] ide: add ide_use_fast_pio() helper

* add ide_use_fast_pio() helper for use by host drivers
* add DMA capability and autodma checks to ide_use_dma()
- au1xxx-ide/it8213/it821x drivers didn't check for (id->capability & 1)
- ide-cris driver didn't set ->autodma

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

---
drivers/ide/cris/ide-cris.c | 12 +++++-------
drivers/ide/ide-dma.c | 3 +++
drivers/ide/ide-lib.c | 15 +++++++++++++++
drivers/ide/pci/aec62xx.c | 14 +++-----------
drivers/ide/pci/atiixp.c | 14 +++-----------
drivers/ide/pci/cmd64x.c | 14 +++-----------
drivers/ide/pci/cs5535.c | 13 +++----------
drivers/ide/pci/hpt34x.c | 16 ++++------------
drivers/ide/pci/hpt366.c | 11 +++--------
drivers/ide/pci/pdc202xx_new.c | 12 +++---------
drivers/ide/pci/pdc202xx_old.c | 14 +++-----------
drivers/ide/pci/piix.c | 12 +++---------
drivers/ide/pci/serverworks.c | 14 +++-----------
drivers/ide/pci/siimage.c | 14 +++-----------
drivers/ide/pci/sis5513.c | 14 +++-----------
drivers/ide/pci/slc90e66.c | 12 +++---------
drivers/ide/pci/tc86c001.c | 12 +++---------
drivers/ide/pci/triflex.c | 9 ++-------
include/linux/ide.h | 1 +
19 files changed, 69 insertions(+), 157 deletions(-)
Index: a/drivers/ide/cris/ide-cris.c
===================================================================
--- a.orig/drivers/ide/cris/ide-cris.c
+++ a/drivers/ide/cris/ide-cris.c
@@ -821,6 +821,9 @@ init_e100_ide (void)
hwif->ultra_mask = cris_ultra_mask;
hwif->mwdma_mask = 0x07; /* Multiword DMA 0-2 */
hwif->swdma_mask = 0x07; /* Singleword DMA 0-2 */
+ hwif->autodma = 1;
+ hwif->drives[0].autodma = 1;
+ hwif->drives[1].autodma = 1;
}

/* Reset pulse */
@@ -1046,14 +1049,9 @@ static ide_startstop_t cris_dma_intr (id
static int cris_dma_check(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
- struct hd_driveid* id = drive->id;

- if (id && (id->capability & 1)) {
- if (ide_use_dma(drive)) {
- if (cris_config_drive_for_dma(drive))
- return hwif->ide_dma_on(drive);
- }
- }
+ if (ide_use_dma(drive) && cris_config_drive_for_dma(drive))
+ return hwif->ide_dma_on(drive);

return hwif->ide_dma_off_quietly(drive);
}
Index: a/drivers/ide/ide-dma.c
===================================================================
--- a.orig/drivers/ide/ide-dma.c
+++ a/drivers/ide/ide-dma.c
@@ -680,6 +680,9 @@ int ide_use_dma(ide_drive_t *drive)
struct hd_driveid *id = drive->id;
ide_hwif_t *hwif = drive->hwif;

+ if ((id->capability & 1) == 0 || drive->autodma == 0)
+ return 0;
+
/* consult the list of known "bad" drives */
if (__ide_dma_bad_drive(drive))
return 0;
Index: a/drivers/ide/ide-lib.c
===================================================================
--- a.orig/drivers/ide/ide-lib.c
+++ a/drivers/ide/ide-lib.c
@@ -205,6 +205,21 @@ int ide_dma_enable (ide_drive_t *drive)

EXPORT_SYMBOL(ide_dma_enable);

+int ide_use_fast_pio(ide_drive_t *drive)
+{
+ struct hd_driveid *id = drive->id;
+
+ if ((id->capability & 1) && drive->autodma)
+ return 1;
+
+ if ((id->capability & 8) || (id->field_valid & 2))
+ return 1;
+
+ return 0;
+}
+
+EXPORT_SYMBOL_GPL(ide_use_fast_pio);
+
/*
* Standard (generic) timings for PIO modes, from ATA2 specification.
* These timings are for access to the IDE data port register *only*.
Index: a/drivers/ide/pci/aec62xx.c
===================================================================
--- a.orig/drivers/ide/pci/aec62xx.c
+++ a/drivers/ide/pci/aec62xx.c
@@ -210,19 +210,11 @@ static void aec62xx_tune_drive (ide_driv
static int aec62xx_config_drive_xfer_rate (ide_drive_t *drive)
{
ide_hwif_t *hwif = HWIF(drive);
- struct hd_driveid *id = drive->id;

- if ((id->capability & 1) && drive->autodma) {
+ if (ide_use_dma(drive) && config_chipset_for_dma(drive))
+ return hwif->ide_dma_on(drive);

- if (ide_use_dma(drive)) {
- if (config_chipset_for_dma(drive))
- return hwif->ide_dma_on(drive);
- }
-
- goto fast_ata_pio;
-
- } else if ((id->capability & 8) || (id->field_valid & 2)) {
-fast_ata_pio:
+ if (ide_use_fast_pio(drive)) {
aec62xx_tune_drive(drive, 5);
return hwif->ide_dma_off_quietly(drive);
}
Index: a/drivers/ide/pci/atiixp.c
===================================================================
--- a.orig/drivers/ide/pci/atiixp.c
+++ a/drivers/ide/pci/atiixp.c
@@ -256,22 +256,14 @@ static int atiixp_config_drive_for_dma(i
static int atiixp_dma_check(ide_drive_t *drive)
{
ide_hwif_t *hwif = HWIF(drive);
- struct hd_driveid *id = drive->id;
u8 tspeed, speed;

drive->init_speed = 0;

- if ((id->capability & 1) && drive->autodma) {
+ if (ide_use_dma(drive) && atiixp_config_drive_for_dma(drive))
+ return hwif->ide_dma_on(drive);

- if (ide_use_dma(drive)) {
- if (atiixp_config_drive_for_dma(drive))
- return hwif->ide_dma_on(drive);
- }
-
- goto fast_ata_pio;
-
- } else if ((id->capability & 8) || (id->field_valid & 2)) {
-fast_ata_pio:
+ if (ide_use_fast_pio(drive)) {
tspeed = ide_get_best_pio_mode(drive, 255, 5, NULL);
speed = atiixp_dma_2_pio(XFER_PIO_0 + tspeed) + XFER_PIO_0;
hwif->speedproc(drive, speed);
Index: a/drivers/ide/pci/cmd64x.c
===================================================================
--- a.orig/drivers/ide/pci/cmd64x.c
+++ a/drivers/ide/pci/cmd64x.c
@@ -475,19 +475,11 @@ static int config_chipset_for_dma (ide_d
static int cmd64x_config_drive_for_dma (ide_drive_t *drive)
{
ide_hwif_t *hwif = HWIF(drive);
- struct hd_driveid *id = drive->id;

- if ((id != NULL) && ((id->capability & 1) != 0) && drive->autodma) {
+ if (ide_use_dma(drive) && config_chipset_for_dma(drive))
+ return hwif->ide_dma_on(drive);

- if (ide_use_dma(drive)) {
- if (config_chipset_for_dma(drive))
- return hwif->ide_dma_on(drive);
- }
-
- goto fast_ata_pio;
-
- } else if ((id->capability & 8) || (id->field_valid & 2)) {
-fast_ata_pio:
+ if (ide_use_fast_pio(drive)) {
config_chipset_for_pio(drive, 1);
return hwif->ide_dma_off_quietly(drive);
}
Index: a/drivers/ide/pci/cs5535.c
===================================================================
--- a.orig/drivers/ide/pci/cs5535.c
+++ a/drivers/ide/pci/cs5535.c
@@ -196,21 +196,14 @@ static int cs5535_config_drive_for_dma(i
static int cs5535_dma_check(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
- struct hd_driveid *id = drive->id;
u8 speed;

drive->init_speed = 0;

- if ((id->capability & 1) && drive->autodma) {
- if (ide_use_dma(drive)) {
- if (cs5535_config_drive_for_dma(drive))
- return hwif->ide_dma_on(drive);
- }
+ if (ide_use_dma(drive) && cs5535_config_drive_for_dma(drive))
+ return hwif->ide_dma_on(drive);

- goto fast_ata_pio;
-
- } else if ((id->capability & 8) || (id->field_valid & 2)) {
-fast_ata_pio:
+ if (ide_use_fast_pio(drive)) {
speed = ide_get_best_pio_mode(drive, 255, 4, NULL);
cs5535_set_drive(drive, speed);
return hwif->ide_dma_off_quietly(drive);
Index: a/drivers/ide/pci/hpt34x.c
===================================================================
--- a.orig/drivers/ide/pci/hpt34x.c
+++ a/drivers/ide/pci/hpt34x.c
@@ -125,25 +125,17 @@ static int config_chipset_for_dma (ide_d
static int hpt34x_config_drive_xfer_rate (ide_drive_t *drive)
{
ide_hwif_t *hwif = HWIF(drive);
- struct hd_driveid *id = drive->id;

drive->init_speed = 0;

- if (id && (id->capability & 1) && drive->autodma) {
-
- if (ide_use_dma(drive)) {
- if (config_chipset_for_dma(drive))
+ if (ide_use_dma(drive) && config_chipset_for_dma(drive))
#ifndef CONFIG_HPT34X_AUTODMA
- return hwif->ide_dma_off_quietly(drive);
+ return hwif->ide_dma_off_quietly(drive);
#else
- return hwif->ide_dma_on(drive);
+ return hwif->ide_dma_on(drive);
#endif
- }
-
- goto fast_ata_pio;

- } else if ((id->capability & 8) || (id->field_valid & 2)) {
-fast_ata_pio:
+ if (ide_use_fast_pio(drive)) {
hpt34x_tune_drive(drive, 255);
return hwif->ide_dma_off_quietly(drive);
}
Index: a/drivers/ide/pci/hpt366.c
===================================================================
--- a.orig/drivers/ide/pci/hpt366.c
+++ a/drivers/ide/pci/hpt366.c
@@ -737,18 +737,13 @@ static void hpt3xx_maskproc(ide_drive_t
static int hpt366_config_drive_xfer_rate(ide_drive_t *drive)
{
ide_hwif_t *hwif = HWIF(drive);
- struct hd_driveid *id = drive->id;

drive->init_speed = 0;

- if ((id->capability & 1) && drive->autodma) {
- if (ide_use_dma(drive) && config_chipset_for_dma(drive))
- return hwif->ide_dma_on(drive);
+ if (ide_use_dma(drive) && config_chipset_for_dma(drive))
+ return hwif->ide_dma_on(drive);

- goto fast_ata_pio;
-
- } else if ((id->capability & 8) || (id->field_valid & 2)) {
-fast_ata_pio:
+ if (ide_use_fast_pio(drive)) {
hpt3xx_tune_drive(drive, 255);
return hwif->ide_dma_off_quietly(drive);
}
Index: a/drivers/ide/pci/pdc202xx_new.c
===================================================================
--- a.orig/drivers/ide/pci/pdc202xx_new.c
+++ a/drivers/ide/pci/pdc202xx_new.c
@@ -282,19 +282,13 @@ static int config_chipset_for_dma(ide_dr
static int pdcnew_config_drive_xfer_rate(ide_drive_t *drive)
{
ide_hwif_t *hwif = HWIF(drive);
- struct hd_driveid *id = drive->id;

drive->init_speed = 0;

- if ((id->capability & 1) && drive->autodma) {
+ if (ide_use_dma(drive) && config_chipset_for_dma(drive))
+ return hwif->ide_dma_on(drive);

- if (ide_use_dma(drive) && config_chipset_for_dma(drive))
- return hwif->ide_dma_on(drive);
-
- goto fast_ata_pio;
-
- } else if ((id->capability & 8) || (id->field_valid & 2)) {
-fast_ata_pio:
+ if (ide_use_fast_pio(drive)) {
hwif->tuneproc(drive, 255);
return hwif->ide_dma_off_quietly(drive);
}
Index: a/drivers/ide/pci/pdc202xx_old.c
===================================================================
--- a.orig/drivers/ide/pci/pdc202xx_old.c
+++ a/drivers/ide/pci/pdc202xx_old.c
@@ -333,21 +333,13 @@ chipset_is_set:
static int pdc202xx_config_drive_xfer_rate (ide_drive_t *drive)
{
ide_hwif_t *hwif = HWIF(drive);
- struct hd_driveid *id = drive->id;

drive->init_speed = 0;

- if (id && (id->capability & 1) && drive->autodma) {
+ if (ide_use_dma(drive) && config_chipset_for_dma(drive))
+ return hwif->ide_dma_on(drive);

- if (ide_use_dma(drive)) {
- if (config_chipset_for_dma(drive))
- return hwif->ide_dma_on(drive);
- }
-
- goto fast_ata_pio;
-
- } else if ((id->capability & 8) || (id->field_valid & 2)) {
-fast_ata_pio:
+ if (ide_use_fast_pio(drive)) {
hwif->tuneproc(drive, 5);
return hwif->ide_dma_off_quietly(drive);
}
Index: a/drivers/ide/pci/piix.c
===================================================================
--- a.orig/drivers/ide/pci/piix.c
+++ a/drivers/ide/pci/piix.c
@@ -387,19 +387,13 @@ static int piix_config_drive_for_dma (id
static int piix_config_drive_xfer_rate (ide_drive_t *drive)
{
ide_hwif_t *hwif = HWIF(drive);
- struct hd_driveid *id = drive->id;

drive->init_speed = 0;

- if ((id->capability & 1) && drive->autodma) {
+ if (ide_use_dma(drive) && piix_config_drive_for_dma(drive))
+ return hwif->ide_dma_on(drive);

- if (ide_use_dma(drive) && piix_config_drive_for_dma(drive))
- return hwif->ide_dma_on(drive);
-
- goto fast_ata_pio;
-
- } else if ((id->capability & 8) || (id->field_valid & 2)) {
-fast_ata_pio:
+ if (ide_use_fast_pio(drive)) {
/* Find best PIO mode. */
(void) hwif->speedproc(drive, XFER_PIO_0 +
ide_get_best_pio_mode(drive, 255, 4, NULL));
Index: a/drivers/ide/pci/serverworks.c
===================================================================
--- a.orig/drivers/ide/pci/serverworks.c
+++ a/drivers/ide/pci/serverworks.c
@@ -316,21 +316,13 @@ static int config_chipset_for_dma (ide_d
static int svwks_config_drive_xfer_rate (ide_drive_t *drive)
{
ide_hwif_t *hwif = HWIF(drive);
- struct hd_driveid *id = drive->id;

drive->init_speed = 0;

- if ((id->capability & 1) && drive->autodma) {
+ if (ide_use_dma(drive) && config_chipset_for_dma(drive))
+ return hwif->ide_dma_on(drive);

- if (ide_use_dma(drive)) {
- if (config_chipset_for_dma(drive))
- return hwif->ide_dma_on(drive);
- }
-
- goto fast_ata_pio;
-
- } else if ((id->capability & 8) || (id->field_valid & 2)) {
-fast_ata_pio:
+ if (ide_use_fast_pio(drive)) {
config_chipset_for_pio(drive);
// hwif->tuneproc(drive, 5);
return hwif->ide_dma_off_quietly(drive);
Index: a/drivers/ide/pci/siimage.c
===================================================================
--- a.orig/drivers/ide/pci/siimage.c
+++ a/drivers/ide/pci/siimage.c
@@ -416,19 +416,11 @@ static int config_chipset_for_dma (ide_d
static int siimage_config_drive_for_dma (ide_drive_t *drive)
{
ide_hwif_t *hwif = HWIF(drive);
- struct hd_driveid *id = drive->id;

- if ((id->capability & 1) != 0 && drive->autodma) {
+ if (ide_use_dma(drive) && config_chipset_for_dma(drive))
+ return hwif->ide_dma_on(drive);

- if (ide_use_dma(drive)) {
- if (config_chipset_for_dma(drive))
- return hwif->ide_dma_on(drive);
- }
-
- goto fast_ata_pio;
-
- } else if ((id->capability & 8) || (id->field_valid & 2)) {
-fast_ata_pio:
+ if (ide_use_fast_pio(drive)) {
config_chipset_for_pio(drive, 1);
return hwif->ide_dma_off_quietly(drive);
}
Index: a/drivers/ide/pci/sis5513.c
===================================================================
--- a.orig/drivers/ide/pci/sis5513.c
+++ a/drivers/ide/pci/sis5513.c
@@ -670,23 +670,15 @@ static int config_chipset_for_dma (ide_d
static int sis5513_config_xfer_rate(ide_drive_t *drive)
{
ide_hwif_t *hwif = HWIF(drive);
- struct hd_driveid *id = drive->id;

config_art_rwp_pio(drive, 5);

drive->init_speed = 0;

- if (id && (id->capability & 1) && drive->autodma) {
+ if (ide_use_dma(drive) && config_chipset_for_dma(drive))
+ return hwif->ide_dma_on(drive);

- if (ide_use_dma(drive)) {
- if (config_chipset_for_dma(drive))
- return hwif->ide_dma_on(drive);
- }
-
- goto fast_ata_pio;
-
- } else if ((id->capability & 8) || (id->field_valid & 2)) {
-fast_ata_pio:
+ if (ide_use_fast_pio(drive)) {
sis5513_tune_drive(drive, 5);
return hwif->ide_dma_off_quietly(drive);
}
Index: a/drivers/ide/pci/slc90e66.c
===================================================================
--- a.orig/drivers/ide/pci/slc90e66.c
+++ a/drivers/ide/pci/slc90e66.c
@@ -180,19 +180,13 @@ static int slc90e66_config_drive_for_dma
static int slc90e66_config_drive_xfer_rate (ide_drive_t *drive)
{
ide_hwif_t *hwif = HWIF(drive);
- struct hd_driveid *id = drive->id;

drive->init_speed = 0;

- if ((id->capability & 1) && drive->autodma) {
+ if (ide_use_dma(drive) && slc90e66_config_drive_for_dma(drive))
+ return hwif->ide_dma_on(drive);

- if (ide_use_dma(drive) && slc90e66_config_drive_for_dma(drive))
- return hwif->ide_dma_on(drive);
-
- goto fast_ata_pio;
-
- } else if ((id->capability & 8) || (id->field_valid & 2)) {
-fast_ata_pio:
+ if (ide_use_fast_pio(drive)) {
(void) hwif->speedproc(drive, XFER_PIO_0 +
ide_get_best_pio_mode(drive, 255, 4, NULL));
return hwif->ide_dma_off_quietly(drive);
Index: a/drivers/ide/pci/tc86c001.c
===================================================================
--- a.orig/drivers/ide/pci/tc86c001.c
+++ a/drivers/ide/pci/tc86c001.c
@@ -186,17 +186,11 @@ static int config_chipset_for_dma(ide_dr
static int tc86c001_config_drive_xfer_rate(ide_drive_t *drive)
{
ide_hwif_t *hwif = HWIF(drive);
- struct hd_driveid *id = drive->id;

- if ((id->capability & 1) && drive->autodma) {
+ if (ide_use_dma(drive) && config_chipset_for_dma(drive))
+ return hwif->ide_dma_on(drive);

- if (ide_use_dma(drive) && config_chipset_for_dma(drive))
- return hwif->ide_dma_on(drive);
-
- goto fast_ata_pio;
-
- } else if ((id->capability & 8) || (id->field_valid & 2)) {
-fast_ata_pio:
+ if (ide_use_fast_pio(drive)) {
tc86c001_tune_drive(drive, 255);
return hwif->ide_dma_off_quietly(drive);
}
Index: a/drivers/ide/pci/triflex.c
===================================================================
--- a.orig/drivers/ide/pci/triflex.c
+++ a/drivers/ide/pci/triflex.c
@@ -116,14 +116,9 @@ static int triflex_config_drive_for_dma(
static int triflex_config_drive_xfer_rate(ide_drive_t *drive)
{
ide_hwif_t *hwif = HWIF(drive);
- struct hd_driveid *id = drive->id;

- if ((id->capability & 1) && drive->autodma) {
- if (ide_use_dma(drive)) {
- if (triflex_config_drive_for_dma(drive))
- return hwif->ide_dma_on(drive);
- }
- }
+ if (ide_use_dma(drive) && triflex_config_drive_for_dma(drive))
+ return hwif->ide_dma_on(drive);

hwif->tuneproc(drive, 255);
return hwif->ide_dma_off_quietly(drive);
Index: a/include/linux/ide.h
===================================================================
--- a.orig/include/linux/ide.h
+++ a/include/linux/ide.h
@@ -1325,6 +1325,7 @@ extern int ide_dma_enable(ide_drive_t *d
extern char *ide_xfer_verbose(u8 xfer_rate);
extern void ide_toggle_bounce(ide_drive_t *drive, int on);
extern int ide_set_xfer_rate(ide_drive_t *drive, u8 rate);
+int ide_use_fast_pio(ide_drive_t *);

u8 ide_dump_status(ide_drive_t *, const char *, u8);

-
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