ide: add ide_use_fast_pio() helper (v3)

* add ide_use_fast_pio() helper for use by host drivers

* add DMA capability and hwif->autodma checks to ide_use_dma()

  - au1xxx-ide/it8213/it821x drivers didn't check for (id->capability & 1)

    [ for the IT8211/2 in SMART mode this check shouldn't be made but since
      in it821x_fixups() we set DMA bit explicitly:

               if(strstr(id->model, "Integrated Technology Express")) {
                       /* In raid mode the ident block is slightly buggy
                          We need to set the bits so that the IDE layer knows
                          LBA28. LBA48 and DMA ar valid */
                       id->capability |= 3;            /* LBA28, DMA */

       we are better off using generic helper if we can ]

  - ide-cris driver didn't set ->autodma

    [ before the patch hwif->autodma was only checked in the chipset specific
      hwif->ide_dma_check implementations, for ide-cris it is cris_dma_check()
      function so there no behavior change here ]

v2:
* updated patch description (thanks to Alan Cox for the feedback)

v3:
* updated for scc_pata driver
Signed-off-by: default avatarBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
parent 056a697b
......@@ -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 (ide_drive_t *drive)
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);
}
......
......@@ -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;
......
......@@ -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*.
......
......@@ -210,19 +210,11 @@ static void aec62xx_tune_drive (ide_drive_t *drive, u8 pio)
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);
}
......
......@@ -253,22 +253,14 @@ static int atiixp_config_drive_for_dma(ide_drive_t *drive)
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);
......
......@@ -475,19 +475,11 @@ static int config_chipset_for_dma (ide_drive_t *drive)
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);
}
......
......@@ -196,21 +196,14 @@ static int cs5535_config_drive_for_dma(ide_drive_t *drive)
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);
}
goto fast_ata_pio;
if (ide_use_dma(drive) && cs5535_config_drive_for_dma(drive))
return hwif->ide_dma_on(drive);
} 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);
......
......@@ -110,25 +110,17 @@ static int config_chipset_for_dma (ide_drive_t *drive)
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);
}
......
......@@ -737,18 +737,13 @@ static void hpt3xx_maskproc(ide_drive_t *drive, int mask)
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);
goto fast_ata_pio;
if (ide_use_dma(drive) && config_chipset_for_dma(drive))
return hwif->ide_dma_on(drive);
} 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);
}
......
......@@ -282,19 +282,13 @@ static int config_chipset_for_dma(ide_drive_t *drive)
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);
goto fast_ata_pio;
if (ide_use_dma(drive) && config_chipset_for_dma(drive))
return hwif->ide_dma_on(drive);
} 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);
}
......
......@@ -323,21 +323,13 @@ 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)) {
if (config_chipset_for_dma(drive))
return hwif->ide_dma_on(drive);
}
goto fast_ata_pio;
if (ide_use_dma(drive) && config_chipset_for_dma(drive))
return hwif->ide_dma_on(drive);
} else if ((id->capability & 8) || (id->field_valid & 2)) {
fast_ata_pio:
if (ide_use_fast_pio(drive)) {
pdc202xx_tune_drive(drive, 255);
return hwif->ide_dma_off_quietly(drive);
}
......
......@@ -387,19 +387,13 @@ static int piix_config_drive_for_dma (ide_drive_t *drive)
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));
......
......@@ -316,21 +316,13 @@ static int config_chipset_for_dma (ide_drive_t *drive)
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);
......
......@@ -415,19 +415,11 @@ static int config_chipset_for_dma (ide_drive_t *drive)
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);
}
......
......@@ -670,23 +670,15 @@ static int config_chipset_for_dma (ide_drive_t *drive)
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);
}
......
......@@ -180,19 +180,13 @@ static int slc90e66_config_drive_for_dma (ide_drive_t *drive)
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);
......
......@@ -186,17 +186,11 @@ static int config_chipset_for_dma(ide_drive_t *drive)
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);
}
......
......@@ -114,14 +114,9 @@ static int triflex_config_drive_for_dma(ide_drive_t *drive)
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);
......
......@@ -383,16 +383,11 @@ static int scc_config_chipset_for_dma(ide_drive_t *drive)
static int scc_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)) {
if (scc_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_dma(drive) && scc_config_chipset_for_dma(drive))
return hwif->ide_dma_on(drive);
if (ide_use_fast_pio(drive)) {
hwif->tuneproc(drive, 4);
hwif->ide_dma_off_quietly(drive);
}
......
......@@ -1352,6 +1352,7 @@ extern int ide_dma_enable(ide_drive_t *drive);
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);
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment