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:
Use menuconfig objects: IDE
sl82c105: Switch to ref counting API
ide: remove ide_use_dma()
ide: add missing validity checks for identify words 62 and 63
ide: remove ide_dma_enable()
sl82c105: add speedproc() method and MWDMA0/1 support
cs5530/sc1200: add ->speedproc support
cs5530/sc1200: DMA support cleanup
ide: use ide_tune_dma() part #2
cs5530/sc1200: add ->udma_filter methods
ide: always disable DMA before tuning it
pdc202xx_new: use ide_tune_dma()
alim15x3: use ide_tune_dma()
sis5513: PIO mode setup fixes
serverworks: PIO mode setup fixes
pdc202xx_old: rewrite mode programming code (v2)
diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig
index 9040809..b1a9b81 100644
--- a/drivers/ide/Kconfig
+++ b/drivers/ide/Kconfig
@@ -4,13 +4,10 @@
# Andre Hedrick <andre@linux-ide.org>
#
-if BLOCK
-
-menu "ATA/ATAPI/MFM/RLL support"
- depends on HAS_IOMEM
-
-config IDE
+menuconfig IDE
tristate "ATA/ATAPI/MFM/RLL support"
+ depends on BLOCK
+ depends on HAS_IOMEM
---help---
If you say Y here, your kernel will be able to manage low cost mass
storage units such as ATA/(E)IDE and ATAPI units. The most common
@@ -1099,8 +1096,4 @@
config BLK_DEV_HD
def_bool BLK_DEV_HD_IDE || BLK_DEV_HD_ONLY
-endif
-
-endmenu
-
-endif
+endif # IDE
diff --git a/drivers/ide/cris/ide-cris.c b/drivers/ide/cris/ide-cris.c
index c04cb25..ca0341c 100644
--- a/drivers/ide/cris/ide-cris.c
+++ b/drivers/ide/cris/ide-cris.c
@@ -1002,18 +1002,6 @@
return 1; /* let the PIO routines handle this weirdness */
}
-static int cris_config_drive_for_dma (ide_drive_t *drive)
-{
- u8 speed = ide_max_dma_mode(drive);
-
- if (!speed)
- return 0;
-
- speed_cris_ide(drive, speed);
-
- return ide_dma_enable(drive);
-}
-
/*
* cris_dma_intr() is the handler for disk read/write DMA interrupts
*/
@@ -1043,7 +1031,7 @@
static int cris_dma_check(ide_drive_t *drive)
{
- if (ide_use_dma(drive) && cris_config_drive_for_dma(drive))
+ if (ide_tune_dma(drive))
return 0;
return -1;
diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c
index 5fe8519..b77b7d1 100644
--- a/drivers/ide/ide-dma.c
+++ b/drivers/ide/ide-dma.c
@@ -670,41 +670,6 @@
EXPORT_SYMBOL(__ide_dma_good_drive);
-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;
-
- /* capable of UltraDMA modes */
- if (id->field_valid & 4) {
- if (hwif->ultra_mask & id->dma_ultra)
- return 1;
- }
-
- /* capable of regular DMA modes */
- if (id->field_valid & 2) {
- if (hwif->mwdma_mask & id->dma_mword)
- return 1;
- if (hwif->swdma_mask & id->dma_1word)
- return 1;
- }
-
- /* consult the list of known "good" drives */
- if (__ide_dma_good_drive(drive) && id->eide_dma_time < 150)
- return 1;
-
- return 0;
-}
-
-EXPORT_SYMBOL_GPL(ide_use_dma);
-
static const u8 xfer_mode_bases[] = {
XFER_UDMA_0,
XFER_MW_DMA_0,
@@ -731,10 +696,12 @@
mask &= 0x07;
break;
case XFER_MW_DMA_0:
- mask = id->dma_mword & hwif->mwdma_mask;
+ if (id->field_valid & 2)
+ mask = id->dma_mword & hwif->mwdma_mask;
break;
case XFER_SW_DMA_0:
- mask = id->dma_1word & hwif->swdma_mask;
+ if (id->field_valid & 2)
+ mask = id->dma_1word & hwif->swdma_mask;
break;
default:
BUG();
@@ -783,8 +750,11 @@
{
u8 speed;
- /* TODO: use only ide_max_dma_mode() */
- if (!ide_use_dma(drive))
+ if ((drive->id->capability & 1) == 0 || drive->autodma == 0)
+ return 0;
+
+ /* consult the list of known "bad" drives */
+ if (__ide_dma_bad_drive(drive))
return 0;
speed = ide_max_dma_mode(drive);
@@ -792,9 +762,10 @@
if (!speed)
return 0;
- drive->hwif->speedproc(drive, speed);
+ if (drive->hwif->speedproc(drive, speed))
+ return 0;
- return ide_dma_enable(drive);
+ return 1;
}
EXPORT_SYMBOL_GPL(ide_tune_dma);
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 8e56814..bfe8f1b 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -223,6 +223,7 @@
break;
if (drive->hwif->ide_dma_check == NULL)
break;
+ drive->hwif->dma_off_quietly(drive);
ide_set_dma(drive);
break;
}
diff --git a/drivers/ide/ide-lib.c b/drivers/ide/ide-lib.c
index 3be3c69..074bb32 100644
--- a/drivers/ide/ide-lib.c
+++ b/drivers/ide/ide-lib.c
@@ -111,18 +111,6 @@
EXPORT_SYMBOL(ide_rate_filter);
-int ide_dma_enable (ide_drive_t *drive)
-{
- ide_hwif_t *hwif = HWIF(drive);
- struct hd_driveid *id = drive->id;
-
- return ((int) ((((id->dma_ultra >> 8) & hwif->ultra_mask) ||
- ((id->dma_mword >> 8) & hwif->mwdma_mask) ||
- ((id->dma_1word >> 8) & hwif->swdma_mask)) ? 1 : 0));
-}
-
-EXPORT_SYMBOL(ide_dma_enable);
-
int ide_use_fast_pio(ide_drive_t *drive)
{
struct hd_driveid *id = drive->id;
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index f2b547f..6002713 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -910,6 +910,7 @@
err = 0;
if (arg) {
+ hwif->dma_off_quietly(drive);
if (ide_set_dma(drive) || hwif->ide_dma_on(drive))
err = -EIO;
} else
diff --git a/drivers/ide/pci/alim15x3.c b/drivers/ide/pci/alim15x3.c
index 428efda..27525ec 100644
--- a/drivers/ide/pci/alim15x3.c
+++ b/drivers/ide/pci/alim15x3.c
@@ -455,28 +455,6 @@
return (ide_config_drive_speed(drive, speed));
}
-
-/**
- * config_chipset_for_dma - set up DMA mode
- * @drive: drive to configure for
- *
- * Place a drive into DMA mode and tune the chipset for
- * the selected speed.
- *
- * Returns true if DMA mode can be used
- */
-
-static int config_chipset_for_dma (ide_drive_t *drive)
-{
- u8 speed = ide_max_dma_mode(drive);
-
- if (!(speed))
- return 0;
-
- (void) ali15x3_tune_chipset(drive, speed);
- return ide_dma_enable(drive);
-}
-
/**
* ali15x3_config_drive_for_dma - configure for DMA
* @drive: drive to configure
@@ -487,48 +465,14 @@
static int ali15x3_config_drive_for_dma(ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
- struct hd_driveid *id = drive->id;
-
- if ((m5229_revision<=0x20) && (drive->media!=ide_disk))
- goto ata_pio;
-
drive->init_speed = 0;
- if ((id != NULL) && ((id->capability & 1) != 0) && drive->autodma) {
- /* Consult the list of known "bad" drives */
- if (__ide_dma_bad_drive(drive))
- goto ata_pio;
- if ((id->field_valid & 4) && (m5229_revision >= 0xC2)) {
- if (id->dma_ultra & hwif->ultra_mask) {
- /* Force if Capable UltraDMA */
- int dma = config_chipset_for_dma(drive);
- if ((id->field_valid & 2) && !dma)
- goto try_dma_modes;
- }
- } else if (id->field_valid & 2) {
-try_dma_modes:
- if ((id->dma_mword & hwif->mwdma_mask) ||
- (id->dma_1word & hwif->swdma_mask)) {
- /* Force if Capable regular DMA modes */
- if (!config_chipset_for_dma(drive))
- goto ata_pio;
- }
- } else if (__ide_dma_good_drive(drive) &&
- (id->eide_dma_time < 150)) {
- /* Consult the list of known "good" drives */
- if (!config_chipset_for_dma(drive))
- goto ata_pio;
- } else {
- goto ata_pio;
- }
- } else {
-ata_pio:
- hwif->tuneproc(drive, 255);
- return -1;
- }
+ if (ide_tune_dma(drive))
+ return 0;
- return 0;
+ ali15x3_tune_drive(drive, 255);
+
+ return -1;
}
/**
@@ -739,7 +683,8 @@
return;
}
- hwif->atapi_dma = 1;
+ if (m5229_revision > 0x20)
+ hwif->atapi_dma = 1;
if (m5229_revision <= 0x20)
hwif->ultra_mask = 0x00; /* no udma */
diff --git a/drivers/ide/pci/cmd64x.c b/drivers/ide/pci/cmd64x.c
index 61ea96b..7c57dc6 100644
--- a/drivers/ide/pci/cmd64x.c
+++ b/drivers/ide/pci/cmd64x.c
@@ -352,22 +352,9 @@
return ide_config_drive_speed(drive, speed);
}
-static int config_chipset_for_dma (ide_drive_t *drive)
-{
- u8 speed = ide_max_dma_mode(drive);
-
- if (!speed)
- return 0;
-
- if (cmd64x_tune_chipset(drive, speed))
- return 0;
-
- return ide_dma_enable(drive);
-}
-
static int cmd64x_config_drive_for_dma (ide_drive_t *drive)
{
- if (ide_use_dma(drive) && config_chipset_for_dma(drive))
+ if (ide_tune_dma(drive))
return 0;
if (ide_use_fast_pio(drive))
diff --git a/drivers/ide/pci/cs5530.c b/drivers/ide/pci/cs5530.c
index b2d7c13..1eec1f30 100644
--- a/drivers/ide/pci/cs5530.c
+++ b/drivers/ide/pci/cs5530.c
@@ -1,10 +1,10 @@
/*
- * linux/drivers/ide/pci/cs5530.c Version 0.7 Sept 10, 2002
+ * linux/drivers/ide/pci/cs5530.c Version 0.73 Mar 10 2007
*
* Copyright (C) 2000 Andre Hedrick <andre@linux-ide.org>
- * Ditto of GNU General Public License.
- *
* Copyright (C) 2000 Mark Lord <mlord@pobox.com>
+ * Copyright (C) 2007 Bartlomiej Zolnierkiewicz
+ *
* May be copied or modified under the terms of the GNU General Public License
*
* Development of this chipset driver was funded
@@ -62,6 +62,14 @@
#define CS5530_BAD_PIO(timings) (((timings)&~0x80000000)==0x0000e132)
#define CS5530_BASEREG(hwif) (((hwif)->dma_base & ~0xf) + ((hwif)->channel ? 0x30 : 0x20))
+static void cs5530_tunepio(ide_drive_t *drive, u8 pio)
+{
+ unsigned long basereg = CS5530_BASEREG(drive->hwif);
+ unsigned int format = (inl(basereg + 4) >> 31) & 1;
+
+ outl(cs5530_pio_timings[format][pio], basereg + ((drive->dn & 1)<<3));
+}
+
/**
* cs5530_tuneproc - select/set PIO modes
*
@@ -74,98 +82,78 @@
static void cs5530_tuneproc (ide_drive_t *drive, u8 pio) /* pio=255 means "autotune" */
{
- ide_hwif_t *hwif = HWIF(drive);
- unsigned int format;
- unsigned long basereg = CS5530_BASEREG(hwif);
- static u8 modes[5] = { XFER_PIO_0, XFER_PIO_1, XFER_PIO_2, XFER_PIO_3, XFER_PIO_4};
-
pio = ide_get_best_pio_mode(drive, pio, 4, NULL);
- if (!cs5530_set_xfer_mode(drive, modes[pio])) {
- format = (inl(basereg + 4) >> 31) & 1;
- outl(cs5530_pio_timings[format][pio],
- basereg+(drive->select.b.unit<<3));
- }
+
+ if (cs5530_set_xfer_mode(drive, XFER_PIO_0 + pio) == 0)
+ cs5530_tunepio(drive, pio);
}
/**
- * cs5530_config_dma - select/set DMA and UDMA modes
+ * cs5530_udma_filter - UDMA filter
+ * @drive: drive
+ *
+ * cs5530_udma_filter() does UDMA mask filtering for the given drive
+ * taking into the consideration capabilities of the mate device.
+ *
+ * The CS5530 specifies that two drives sharing a cable cannot mix
+ * UDMA/MDMA. It has to be one or the other, for the pair, though
+ * different timings can still be chosen for each drive. We could
+ * set the appropriate timing bits on the fly, but that might be
+ * a bit confusing. So, for now we statically handle this requirement
+ * by looking at our mate drive to see what it is capable of, before
+ * choosing a mode for our own drive.
+ *
+ * Note: This relies on the fact we never fail from UDMA to MWDMA2
+ * but instead drop to PIO.
+ */
+
+static u8 cs5530_udma_filter(ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = drive->hwif;
+ ide_drive_t *mate = &hwif->drives[(drive->dn & 1) ^ 1];
+ struct hd_driveid *mateid = mate->id;
+ u8 mask = hwif->ultra_mask;
+
+ if (mate->present == 0)
+ goto out;
+
+ if ((mateid->capability & 1) && __ide_dma_bad_drive(mate) == 0) {
+ if ((mateid->field_valid & 4) && (mateid->dma_ultra & 7))
+ goto out;
+ if ((mateid->field_valid & 2) && (mateid->dma_mword & 7))
+ mask = 0;
+ }
+out:
+ return mask;
+}
+
+/**
+ * cs5530_config_dma - set DMA/UDMA mode
* @drive: drive to tune
*
- * cs5530_config_dma() handles selection/setting of DMA/UDMA modes
- * for both the chipset and drive. The CS5530 has limitations about
- * mixing DMA/UDMA on the same cable.
+ * cs5530_config_dma() handles setting of DMA/UDMA mode
+ * for both the chipset and drive.
*/
-
-static int cs5530_config_dma (ide_drive_t *drive)
+
+static int cs5530_config_dma(ide_drive_t *drive)
{
- int udma_ok = 1, mode = 0;
- ide_hwif_t *hwif = HWIF(drive);
- int unit = drive->select.b.unit;
- ide_drive_t *mate = &hwif->drives[unit^1];
- struct hd_driveid *id = drive->id;
- unsigned int reg, timings = 0;
- unsigned long basereg;
+ if (ide_tune_dma(drive))
+ return 0;
- /*
- * Default to DMA-off in case we run into trouble here.
- */
- hwif->dma_off_quietly(drive);
+ return 1;
+}
- /*
- * The CS5530 specifies that two drives sharing a cable cannot
- * mix UDMA/MDMA. It has to be one or the other, for the pair,
- * though different timings can still be chosen for each drive.
- * We could set the appropriate timing bits on the fly,
- * but that might be a bit confusing. So, for now we statically
- * handle this requirement by looking at our mate drive to see
- * what it is capable of, before choosing a mode for our own drive.
- *
- * Note: This relies on the fact we never fail from UDMA to MWDMA_2
- * but instead drop to PIO
- */
- if (mate->present) {
- struct hd_driveid *mateid = mate->id;
- if (mateid && (mateid->capability & 1) &&
- !__ide_dma_bad_drive(mate)) {
- if ((mateid->field_valid & 4) &&
- (mateid->dma_ultra & 7))
- udma_ok = 1;
- else if ((mateid->field_valid & 2) &&
- (mateid->dma_mword & 7))
- udma_ok = 0;
- else
- udma_ok = 1;
- }
- }
+static int cs5530_tune_chipset(ide_drive_t *drive, u8 mode)
+{
+ unsigned long basereg;
+ unsigned int reg, timings = 0;
- /*
- * Now see what the current drive is capable of,
- * selecting UDMA only if the mate said it was ok.
- */
- if (id && (id->capability & 1) && drive->autodma &&
- !__ide_dma_bad_drive(drive)) {
- if (udma_ok && (id->field_valid & 4) && (id->dma_ultra & 7)) {
- if (id->dma_ultra & 4)
- mode = XFER_UDMA_2;
- else if (id->dma_ultra & 2)
- mode = XFER_UDMA_1;
- else if (id->dma_ultra & 1)
- mode = XFER_UDMA_0;
- }
- if (!mode && (id->field_valid & 2) && (id->dma_mword & 7)) {
- if (id->dma_mword & 4)
- mode = XFER_MW_DMA_2;
- else if (id->dma_mword & 2)
- mode = XFER_MW_DMA_1;
- else if (id->dma_mword & 1)
- mode = XFER_MW_DMA_0;
- }
- }
+ mode = ide_rate_filter(drive, mode);
/*
* Tell the drive to switch to the new mode; abort on failure.
*/
- if (!mode || cs5530_set_xfer_mode(drive, mode))
+ if (cs5530_set_xfer_mode(drive, mode))
return 1; /* failure */
/*
@@ -178,14 +166,21 @@
case XFER_MW_DMA_0: timings = 0x00077771; break;
case XFER_MW_DMA_1: timings = 0x00012121; break;
case XFER_MW_DMA_2: timings = 0x00002020; break;
+ case XFER_PIO_4:
+ case XFER_PIO_3:
+ case XFER_PIO_2:
+ case XFER_PIO_1:
+ case XFER_PIO_0:
+ cs5530_tunepio(drive, mode - XFER_PIO_0);
+ return 0;
default:
BUG();
break;
}
- basereg = CS5530_BASEREG(hwif);
+ basereg = CS5530_BASEREG(drive->hwif);
reg = inl(basereg + 4); /* get drive0 config register */
timings |= reg & 0x80000000; /* preserve PIO format bit */
- if (unit == 0) { /* are we configuring drive0? */
+ if ((drive-> dn & 1) == 0) { /* are we configuring drive0? */
outl(timings, basereg + 4); /* write drive0 config register */
} else {
if (timings & 0x00100000)
@@ -311,6 +306,8 @@
hwif->serialized = hwif->mate->serialized = 1;
hwif->tuneproc = &cs5530_tuneproc;
+ hwif->speedproc = &cs5530_tune_chipset;
+
basereg = CS5530_BASEREG(hwif);
d0_timings = inl(basereg + 0);
if (CS5530_BAD_PIO(d0_timings)) {
@@ -332,6 +329,7 @@
hwif->ultra_mask = 0x07;
hwif->mwdma_mask = 0x07;
+ hwif->udma_filter = cs5530_udma_filter;
hwif->ide_dma_check = &cs5530_config_dma;
if (!noautodma)
hwif->autodma = 1;
diff --git a/drivers/ide/pci/it821x.c b/drivers/ide/pci/it821x.c
index 442f658..5faaff8 100644
--- a/drivers/ide/pci/it821x.c
+++ b/drivers/ide/pci/it821x.c
@@ -464,25 +464,6 @@
}
/**
- * config_chipset_for_dma - configure for DMA
- * @drive: drive to configure
- *
- * Called by the IDE layer when it wants the timings set up.
- */
-
-static int config_chipset_for_dma (ide_drive_t *drive)
-{
- u8 speed = ide_max_dma_mode(drive);
-
- if (speed == 0)
- return 0;
-
- it821x_tune_chipset(drive, speed);
-
- return ide_dma_enable(drive);
-}
-
-/**
* it821x_configure_drive_for_dma - set up for DMA transfers
* @drive: drive we are going to set up
*
@@ -494,7 +475,7 @@
static int it821x_config_drive_for_dma (ide_drive_t *drive)
{
- if (ide_use_dma(drive) && config_chipset_for_dma(drive))
+ if (ide_tune_dma(drive))
return 0;
it821x_tuneproc(drive, 255);
diff --git a/drivers/ide/pci/pdc202xx_new.c b/drivers/ide/pci/pdc202xx_new.c
index 65b1e12..cc0bfdc 100644
--- a/drivers/ide/pci/pdc202xx_new.c
+++ b/drivers/ide/pci/pdc202xx_new.c
@@ -228,38 +228,11 @@
return get_indexed_reg(hwif, 0x0b) & 0x04;
}
-static int config_chipset_for_dma(ide_drive_t *drive)
-{
- struct hd_driveid *id = drive->id;
- ide_hwif_t *hwif = HWIF(drive);
- u8 speed;
-
- if (id->capability & 4) {
- /*
- * Set IORDY_EN & PREFETCH_EN (this seems to have
- * NO real effect since this register is reloaded
- * by hardware when the transfer mode is selected)
- */
- u8 tmp, adj = (drive->dn & 1) ? 0x08 : 0x00;
-
- tmp = get_indexed_reg(hwif, 0x13 + adj);
- set_indexed_reg(hwif, 0x13 + adj, tmp | 0x03);
- }
-
- speed = ide_max_dma_mode(drive);
-
- if (!speed)
- return 0;
-
- (void) hwif->speedproc(drive, speed);
- return ide_dma_enable(drive);
-}
-
static int pdcnew_config_drive_xfer_rate(ide_drive_t *drive)
{
drive->init_speed = 0;
- if (ide_use_dma(drive) && config_chipset_for_dma(drive))
+ if (ide_tune_dma(drive))
return 0;
if (ide_use_fast_pio(drive))
diff --git a/drivers/ide/pci/pdc202xx_old.c b/drivers/ide/pci/pdc202xx_old.c
index 7146fe3..2384468 100644
--- a/drivers/ide/pci/pdc202xx_old.c
+++ b/drivers/ide/pci/pdc202xx_old.c
@@ -1,8 +1,9 @@
/*
- * linux/drivers/ide/pci/pdc202xx_old.c Version 0.36 Sept 11, 2002
+ * linux/drivers/ide/pci/pdc202xx_old.c Version 0.50 Mar 3, 2007
*
* Copyright (C) 1998-2002 Andre Hedrick <andre@linux-ide.org>
* Copyright (C) 2006-2007 MontaVista Software, Inc.
+ * Copyright (C) 2007 Bartlomiej Zolnierkiewicz
*
* Promise Ultra33 cards with BIOS v1.20 through 1.28 will need this
* compiled into the kernel if you have more than one card installed.
@@ -60,45 +61,7 @@
NULL
};
-/* A Register */
-#define SYNC_ERRDY_EN 0xC0
-
-#define SYNC_IN 0x80 /* control bit, different for master vs. slave drives */
-#define ERRDY_EN 0x40 /* control bit, different for master vs. slave drives */
-#define IORDY_EN 0x20 /* PIO: IOREADY */
-#define PREFETCH_EN 0x10 /* PIO: PREFETCH */
-
-#define PA3 0x08 /* PIO"A" timing */
-#define PA2 0x04 /* PIO"A" timing */
-#define PA1 0x02 /* PIO"A" timing */
-#define PA0 0x01 /* PIO"A" timing */
-
-/* B Register */
-
-#define MB2 0x80 /* DMA"B" timing */
-#define MB1 0x40 /* DMA"B" timing */
-#define MB0 0x20 /* DMA"B" timing */
-
-#define PB4 0x10 /* PIO_FORCE 1:0 */
-
-#define PB3 0x08 /* PIO"B" timing */ /* PIO flow Control mode */
-#define PB2 0x04 /* PIO"B" timing */ /* PIO 4 */
-#define PB1 0x02 /* PIO"B" timing */ /* PIO 3 half */
-#define PB0 0x01 /* PIO"B" timing */ /* PIO 3 other half */
-
-/* C Register */
-#define IORDYp_NO_SPEED 0x4F
-#define SPEED_DIS 0x0F
-
-#define DMARQp 0x80
-#define IORDYp 0x40
-#define DMAR_EN 0x20
-#define DMAW_EN 0x10
-
-#define MC3 0x08 /* DMA"C" timing */
-#define MC2 0x04 /* DMA"C" timing */
-#define MC1 0x02 /* DMA"C" timing */
-#define MC0 0x01 /* DMA"C" timing */
+static void pdc_old_disable_66MHz_clock(ide_hwif_t *);
static int pdc202xx_tune_chipset (ide_drive_t *drive, u8 xferspeed)
{
@@ -107,52 +70,25 @@
u8 drive_pci = 0x60 + (drive->dn << 2);
u8 speed = ide_rate_filter(drive, xferspeed);
- u32 drive_conf;
- u8 AP, BP, CP, DP;
+ u8 AP = 0, BP = 0, CP = 0;
u8 TA = 0, TB = 0, TC = 0;
- if (drive->media != ide_disk &&
- drive->media != ide_cdrom && speed < XFER_SW_DMA_0)
- return -1;
-
+#if PDC202XX_DEBUG_DRIVE_INFO
+ u32 drive_conf = 0;
pci_read_config_dword(dev, drive_pci, &drive_conf);
- pci_read_config_byte(dev, (drive_pci), &AP);
- pci_read_config_byte(dev, (drive_pci)|0x01, &BP);
- pci_read_config_byte(dev, (drive_pci)|0x02, &CP);
- pci_read_config_byte(dev, (drive_pci)|0x03, &DP);
+#endif
- if (speed < XFER_SW_DMA_0) {
- if ((AP & 0x0F) || (BP & 0x07)) {
- /* clear PIO modes of lower 8421 bits of A Register */
- pci_write_config_byte(dev, (drive_pci), AP &~0x0F);
- pci_read_config_byte(dev, (drive_pci), &AP);
+ /*
+ * TODO: do this once per channel
+ */
+ if (dev->device != PCI_DEVICE_ID_PROMISE_20246)
+ pdc_old_disable_66MHz_clock(hwif);
- /* clear PIO modes of lower 421 bits of B Register */
- pci_write_config_byte(dev, (drive_pci)|0x01, BP &~0x07);
- pci_read_config_byte(dev, (drive_pci)|0x01, &BP);
-
- pci_read_config_byte(dev, (drive_pci), &AP);
- pci_read_config_byte(dev, (drive_pci)|0x01, &BP);
- }
- } else {
- if ((BP & 0xF0) && (CP & 0x0F)) {
- /* clear DMA modes of upper 842 bits of B Register */
- /* clear PIO forced mode upper 1 bit of B Register */
- pci_write_config_byte(dev, (drive_pci)|0x01, BP &~0xF0);
- pci_read_config_byte(dev, (drive_pci)|0x01, &BP);
-
- /* clear DMA modes of lower 8421 bits of C Register */
- pci_write_config_byte(dev, (drive_pci)|0x02, CP &~0x0F);
- pci_read_config_byte(dev, (drive_pci)|0x02, &CP);
- }
- }
-
- pci_read_config_byte(dev, (drive_pci), &AP);
- pci_read_config_byte(dev, (drive_pci)|0x01, &BP);
- pci_read_config_byte(dev, (drive_pci)|0x02, &CP);
+ pci_read_config_byte(dev, drive_pci, &AP);
+ pci_read_config_byte(dev, drive_pci + 1, &BP);
+ pci_read_config_byte(dev, drive_pci + 2, &CP);
switch(speed) {
- case XFER_UDMA_6: speed = XFER_UDMA_5;
case XFER_UDMA_5:
case XFER_UDMA_4: TB = 0x20; TC = 0x01; break;
case XFER_UDMA_2: TB = 0x20; TC = 0x01; break;
@@ -161,7 +97,7 @@
case XFER_UDMA_0:
case XFER_MW_DMA_2: TB = 0x60; TC = 0x03; break;
case XFER_MW_DMA_1: TB = 0x60; TC = 0x04; break;
- case XFER_MW_DMA_0:
+ case XFER_MW_DMA_0: TB = 0xE0; TC = 0x0F; break;
case XFER_SW_DMA_2: TB = 0x60; TC = 0x05; break;
case XFER_SW_DMA_1: TB = 0x80; TC = 0x06; break;
case XFER_SW_DMA_0: TB = 0xC0; TC = 0x0B; break;
@@ -174,25 +110,39 @@
}
if (speed < XFER_SW_DMA_0) {
- pci_write_config_byte(dev, (drive_pci), AP|TA);
- pci_write_config_byte(dev, (drive_pci)|0x01, BP|TB);
+ /*
+ * preserve SYNC_INT / ERDDY_EN bits while clearing
+ * Prefetch_EN / IORDY_EN / PA[3:0] bits of register A
+ */
+ AP &= ~0x3f;
+ if (drive->id->capability & 4)
+ AP |= 0x20; /* set IORDY_EN bit */
+ if (drive->media == ide_disk)
+ AP |= 0x10; /* set Prefetch_EN bit */
+ /* clear PB[4:0] bits of register B */
+ BP &= ~0x1f;
+ pci_write_config_byte(dev, drive_pci, AP | TA);
+ pci_write_config_byte(dev, drive_pci + 1, BP | TB);
} else {
- pci_write_config_byte(dev, (drive_pci)|0x01, BP|TB);
- pci_write_config_byte(dev, (drive_pci)|0x02, CP|TC);
+ /* clear MB[2:0] bits of register B */
+ BP &= ~0xe0;
+ /* clear MC[3:0] bits of register C */
+ CP &= ~0x0f;
+ pci_write_config_byte(dev, drive_pci + 1, BP | TB);
+ pci_write_config_byte(dev, drive_pci + 2, CP | TC);
}
#if PDC202XX_DEBUG_DRIVE_INFO
printk(KERN_DEBUG "%s: %s drive%d 0x%08x ",
drive->name, ide_xfer_verbose(speed),
drive->dn, drive_conf);
- pci_read_config_dword(dev, drive_pci, &drive_conf);
+ pci_read_config_dword(dev, drive_pci, &drive_conf);
printk("0x%08x\n", drive_conf);
-#endif /* PDC202XX_DEBUG_DRIVE_INFO */
+#endif
- return (ide_config_drive_speed(drive, speed));
+ return ide_config_drive_speed(drive, speed);
}
-
static void pdc202xx_tune_drive(ide_drive_t *drive, u8 pio)
{
pio = ide_get_best_pio_mode(drive, pio, 4, NULL);
@@ -210,6 +160,8 @@
* Set the control register to use the 66MHz system
* clock for UDMA 3/4/5 mode operation when necessary.
*
+ * FIXME: this register is shared by both channels, some locking is needed
+ *
* It may also be possible to leave the 66MHz clock on
* and readjust the timing parameters.
*/
@@ -229,65 +181,11 @@
outb(clock & ~(hwif->channel ? 0x08 : 0x02), clock_reg);
}
-static int config_chipset_for_dma (ide_drive_t *drive)
-{
- struct hd_driveid *id = drive->id;
- ide_hwif_t *hwif = HWIF(drive);
- struct pci_dev *dev = hwif->pci_dev;
- u32 drive_conf = 0;
- u8 drive_pci = 0x60 + (drive->dn << 2);
- u8 test1 = 0, test2 = 0, speed = -1;
- u8 AP = 0;
-
- if (dev->device != PCI_DEVICE_ID_PROMISE_20246)
- pdc_old_disable_66MHz_clock(drive->hwif);
-
- drive_pci = 0x60 + (drive->dn << 2);
- pci_read_config_dword(dev, drive_pci, &drive_conf);
- if ((drive_conf != 0x004ff304) && (drive_conf != 0x004ff3c4))
- goto chipset_is_set;
-
- pci_read_config_byte(dev, drive_pci, &test1);
- if (!(test1 & SYNC_ERRDY_EN)) {
- if (drive->select.b.unit & 0x01) {
- pci_read_config_byte(dev, drive_pci - 4, &test2);
- if ((test2 & SYNC_ERRDY_EN) &&
- !(test1 & SYNC_ERRDY_EN)) {
- pci_write_config_byte(dev, drive_pci,
- test1|SYNC_ERRDY_EN);
- }
- } else {
- pci_write_config_byte(dev, drive_pci,
- test1|SYNC_ERRDY_EN);
- }
- }
-
-chipset_is_set:
-
- pci_read_config_byte(dev, (drive_pci), &AP);
- if (id->capability & 4) /* IORDY_EN */
- pci_write_config_byte(dev, (drive_pci), AP|IORDY_EN);
- pci_read_config_byte(dev, (drive_pci), &AP);
- if (drive->media == ide_disk) /* PREFETCH_EN */
- pci_write_config_byte(dev, (drive_pci), AP|PREFETCH_EN);
-
- speed = ide_max_dma_mode(drive);
-
- if (!(speed)) {
- /* restore original pci-config space */
- pci_write_config_dword(dev, drive_pci, drive_conf);
- return 0;
- }
-
- (void) hwif->speedproc(drive, speed);
- return ide_dma_enable(drive);
-}
-
static int pdc202xx_config_drive_xfer_rate (ide_drive_t *drive)
{
drive->init_speed = 0;
- if (ide_use_dma(drive) && config_chipset_for_dma(drive))
+ if (ide_tune_dma(drive))
return 0;
if (ide_use_fast_pio(drive))
diff --git a/drivers/ide/pci/sc1200.c b/drivers/ide/pci/sc1200.c
index b5ae0c5..523363c 100644
--- a/drivers/ide/pci/sc1200.c
+++ b/drivers/ide/pci/sc1200.c
@@ -1,7 +1,9 @@
/*
- * linux/drivers/ide/pci/sc1200.c Version 0.91 28-Jan-2003
+ * linux/drivers/ide/pci/sc1200.c Version 0.94 Mar 10 2007
*
* Copyright (C) 2000-2002 Mark Lord <mlord@pobox.com>
+ * Copyright (C) 2007 Bartlomiej Zolnierkiewicz
+ *
* May be copied or modified under the terms of the GNU General Public License
*
* Development of this chipset driver was funded
@@ -93,64 +95,50 @@
*/
//#define SC1200_BAD_PIO(timings) (((timings)&~0x80000000)==0x00009172)
-static int sc1200_autoselect_dma_mode (ide_drive_t *drive)
+static void sc1200_tunepio(ide_drive_t *drive, u8 pio)
{
- int udma_ok = 1, mode = 0;
- ide_hwif_t *hwif = HWIF(drive);
- int unit = drive->select.b.unit;
- ide_drive_t *mate = &hwif->drives[unit^1];
- struct hd_driveid *id = drive->id;
+ ide_hwif_t *hwif = drive->hwif;
+ struct pci_dev *pdev = hwif->pci_dev;
+ unsigned int basereg = hwif->channel ? 0x50 : 0x40, format = 0;
- /*
- * The SC1200 specifies that two drives sharing a cable cannot
- * mix UDMA/MDMA. It has to be one or the other, for the pair,
- * though different timings can still be chosen for each drive.
- * We could set the appropriate timing bits on the fly,
- * but that might be a bit confusing. So, for now we statically
- * handle this requirement by looking at our mate drive to see
- * what it is capable of, before choosing a mode for our own drive.
- */
- if (mate->present) {
- struct hd_driveid *mateid = mate->id;
- if (mateid && (mateid->capability & 1) && !__ide_dma_bad_drive(mate)) {
- if ((mateid->field_valid & 4) && (mateid->dma_ultra & 7))
- udma_ok = 1;
- else if ((mateid->field_valid & 2) && (mateid->dma_mword & 7))
- udma_ok = 0;
- else
- udma_ok = 1;
- }
- }
- /*
- * Now see what the current drive is capable of,
- * selecting UDMA only if the mate said it was ok.
- */
- if (id && (id->capability & 1) && hwif->autodma && !__ide_dma_bad_drive(drive)) {
- if (udma_ok && (id->field_valid & 4) && (id->dma_ultra & 7)) {
- if (id->dma_ultra & 4)
- mode = XFER_UDMA_2;
- else if (id->dma_ultra & 2)
- mode = XFER_UDMA_1;
- else if (id->dma_ultra & 1)
- mode = XFER_UDMA_0;
- }
- if (!mode && (id->field_valid & 2) && (id->dma_mword & 7)) {
- if (id->dma_mword & 4)
- mode = XFER_MW_DMA_2;
- else if (id->dma_mword & 2)
- mode = XFER_MW_DMA_1;
- else if (id->dma_mword & 1)
- mode = XFER_MW_DMA_0;
- }
- }
- return mode;
+ pci_read_config_dword(pdev, basereg + 4, &format);
+ format = (format >> 31) & 1;
+ if (format)
+ format += sc1200_get_pci_clock();
+ pci_write_config_dword(pdev, basereg + ((drive->dn & 1) << 3),
+ sc1200_pio_timings[format][pio]);
}
/*
- * sc1200_config_dma2() handles selection/setting of DMA/UDMA modes
- * for both the chipset and drive.
+ * The SC1200 specifies that two drives sharing a cable cannot mix
+ * UDMA/MDMA. It has to be one or the other, for the pair, though
+ * different timings can still be chosen for each drive. We could
+ * set the appropriate timing bits on the fly, but that might be
+ * a bit confusing. So, for now we statically handle this requirement
+ * by looking at our mate drive to see what it is capable of, before
+ * choosing a mode for our own drive.
*/
-static int sc1200_config_dma2 (ide_drive_t *drive, int mode)
+static u8 sc1200_udma_filter(ide_drive_t *drive)
+{
+ ide_hwif_t *hwif = drive->hwif;
+ ide_drive_t *mate = &hwif->drives[(drive->dn & 1) ^ 1];
+ struct hd_driveid *mateid = mate->id;
+ u8 mask = hwif->ultra_mask;
+
+ if (mate->present == 0)
+ goto out;
+
+ if ((mateid->capability & 1) && __ide_dma_bad_drive(mate) == 0) {
+ if ((mateid->field_valid & 4) && (mateid->dma_ultra & 7))
+ goto out;
+ if ((mateid->field_valid & 2) && (mateid->dma_mword & 7))
+ mask = 0;
+ }
+out:
+ return mask;
+}
+
+static int sc1200_tune_chipset(ide_drive_t *drive, u8 mode)
{
ide_hwif_t *hwif = HWIF(drive);
int unit = drive->select.b.unit;
@@ -158,20 +146,26 @@
unsigned short pci_clock;
unsigned int basereg = hwif->channel ? 0x50 : 0x40;
- /*
- * Default to DMA-off in case we run into trouble here.
- */
- hwif->dma_off_quietly(drive); /* turn off DMA while we fiddle */
- outb(inb(hwif->dma_base+2)&~(unit?0x40:0x20), hwif->dma_base+2); /* clear DMA_capable bit */
+ mode = ide_rate_filter(drive, mode);
/*
* Tell the drive to switch to the new mode; abort on failure.
*/
- if (!mode || sc1200_set_xfer_mode(drive, mode)) {
+ if (sc1200_set_xfer_mode(drive, mode)) {
printk("SC1200: set xfer mode failure\n");
return 1; /* failure */
}
+ switch (mode) {
+ case XFER_PIO_4:
+ case XFER_PIO_3:
+ case XFER_PIO_2:
+ case XFER_PIO_1:
+ case XFER_PIO_0:
+ sc1200_tunepio(drive, mode - XFER_PIO_0);
+ return 0;
+ }
+
pci_clock = sc1200_get_pci_clock();
/*
@@ -224,11 +218,9 @@
case PCI_CLK_66: timings = 0x00015151; break;
}
break;
- }
-
- if (timings == 0) {
- printk("%s: sc1200_config_dma: huh? mode=%02x clk=%x \n", drive->name, mode, pci_clock);
- return 1; /* failure */
+ default:
+ BUG();
+ break;
}
if (unit == 0) { /* are we configuring drive0? */
@@ -239,8 +231,6 @@
pci_write_config_dword(hwif->pci_dev, basereg+12, timings);
}
- outb(inb(hwif->dma_base+2)|(unit?0x40:0x20), hwif->dma_base+2); /* set DMA_capable bit */
-
return 0; /* success */
}
@@ -250,7 +240,10 @@
*/
static int sc1200_config_dma (ide_drive_t *drive)
{
- return sc1200_config_dma2(drive, sc1200_autoselect_dma_mode(drive));
+ if (ide_tune_dma(drive))
+ return 0;
+
+ return 1;
}
@@ -290,10 +283,11 @@
static void sc1200_tuneproc (ide_drive_t *drive, byte pio) /* mode=255 means "autotune" */
{
ide_hwif_t *hwif = HWIF(drive);
- unsigned int format;
- static byte modes[5] = {XFER_PIO_0, XFER_PIO_1, XFER_PIO_2, XFER_PIO_3, XFER_PIO_4};
int mode = -1;
+ /*
+ * bad abuse of ->tuneproc interface
+ */
switch (pio) {
case 200: mode = XFER_UDMA_0; break;
case 201: mode = XFER_UDMA_1; break;
@@ -304,20 +298,17 @@
}
if (mode != -1) {
printk("SC1200: %s: changing (U)DMA mode\n", drive->name);
- (void)sc1200_config_dma2(drive, mode);
+ hwif->dma_off_quietly(drive);
+ if (sc1200_tune_chipset(drive, mode) == 0)
+ hwif->dma_host_on(drive);
return;
}
pio = ide_get_best_pio_mode(drive, pio, 4, NULL);
printk("SC1200: %s: setting PIO mode%d\n", drive->name, pio);
- if (!sc1200_set_xfer_mode(drive, modes[pio])) {
- unsigned int basereg = hwif->channel ? 0x50 : 0x40;
- pci_read_config_dword (hwif->pci_dev, basereg+4, &format);
- format = (format >> 31) & 1;
- if (format)
- format += sc1200_get_pci_clock();
- pci_write_config_dword(hwif->pci_dev, basereg + (drive->select.b.unit << 3), sc1200_pio_timings[format][pio]);
- }
+
+ if (sc1200_set_xfer_mode(drive, XFER_PIO_0 + pio) == 0)
+ sc1200_tunepio(drive, pio);
}
#ifdef CONFIG_PM
@@ -438,12 +429,12 @@
for (d = 0; d < MAX_DRIVES; ++d) {
ide_drive_t *drive = &(hwif->drives[d]);
if (drive->present && !__ide_dma_bad_drive(drive)) {
- int was_using_dma = drive->using_dma;
+ int enable_dma = drive->using_dma;
hwif->dma_off_quietly(drive);
- sc1200_config_dma(drive);
- if (!was_using_dma && drive->using_dma) {
- hwif->dma_off_quietly(drive);
- }
+ if (sc1200_config_dma(drive))
+ enable_dma = 0;
+ if (enable_dma)
+ hwif->dma_host_on(drive);
}
}
}
@@ -461,11 +452,13 @@
hwif->serialized = hwif->mate->serialized = 1;
hwif->autodma = 0;
if (hwif->dma_base) {
+ hwif->udma_filter = sc1200_udma_filter;
hwif->ide_dma_check = &sc1200_config_dma;
hwif->ide_dma_end = &sc1200_ide_dma_end;
if (!noautodma)
hwif->autodma = 1;
hwif->tuneproc = &sc1200_tuneproc;
+ hwif->speedproc = &sc1200_tune_chipset;
}
hwif->atapi_dma = 1;
hwif->ultra_mask = 0x07;
diff --git a/drivers/ide/pci/scc_pata.c b/drivers/ide/pci/scc_pata.c
index cbf9363..55bc0a3 100644
--- a/drivers/ide/pci/scc_pata.c
+++ b/drivers/ide/pci/scc_pata.c
@@ -322,26 +322,6 @@
}
/**
- * scc_config_chipset_for_dma - configure for DMA
- * @drive: drive to configure
- *
- * Called by scc_config_drive_for_dma().
- */
-
-static int scc_config_chipset_for_dma(ide_drive_t *drive)
-{
- u8 speed = ide_max_dma_mode(drive);
-
- if (!speed)
- return 0;
-
- if (scc_tune_chipset(drive, speed))
- return 0;
-
- return ide_dma_enable(drive);
-}
-
-/**
* scc_configure_drive_for_dma - set up for DMA transfers
* @drive: drive we are going to set up
*
@@ -354,7 +334,7 @@
static int scc_config_drive_for_dma(ide_drive_t *drive)
{
- if (ide_use_dma(drive) && scc_config_chipset_for_dma(drive))
+ if (ide_tune_dma(drive))
return 0;
if (ide_use_fast_pio(drive))
diff --git a/drivers/ide/pci/serverworks.c b/drivers/ide/pci/serverworks.c
index 2fa6d92..6234f80 100644
--- a/drivers/ide/pci/serverworks.c
+++ b/drivers/ide/pci/serverworks.c
@@ -1,9 +1,10 @@
/*
- * linux/drivers/ide/pci/serverworks.c Version 0.8 25 Ebr 2003
+ * linux/drivers/ide/pci/serverworks.c Version 0.9 Mar 4 2007
*
* Copyright (C) 1998-2000 Michel Aubry
* Copyright (C) 1998-2000 Andrzej Krzysztofowicz
* Copyright (C) 1998-2000 Andre Hedrick <andre@linux-ide.org>
+ * Copyright (C) 2007 Bartlomiej Zolnierkiewicz
* Portions copyright (c) 2001 Sun Microsystems
*
*
@@ -136,19 +137,14 @@
ide_hwif_t *hwif = HWIF(drive);
struct pci_dev *dev = hwif->pci_dev;
- u8 speed;
- u8 pio = ide_get_best_pio_mode(drive, 255, 5, NULL);
+ u8 speed = ide_rate_filter(drive, xferspeed);
+ u8 pio = ide_get_best_pio_mode(drive, 255, 4, NULL);
u8 unit = (drive->select.b.unit & 0x01);
u8 csb5 = svwks_csb_check(dev);
u8 ultra_enable = 0, ultra_timing = 0;
u8 dma_timing = 0, pio_timing = 0;
u16 csb5_pio = 0;
- if (xferspeed == 255) /* PIO auto-tuning */
- speed = XFER_PIO_0 + pio;
- else
- speed = ide_rate_filter(drive, xferspeed);
-
/* If we are about to put a disk into UDMA mode we screwed up.
Our code assumes we never _ever_ do this on an OSB4 */
@@ -231,6 +227,9 @@
case XFER_MW_DMA_2:
case XFER_MW_DMA_1:
case XFER_MW_DMA_0:
+ /*
+ * TODO: always setup PIO mode so this won't be needed
+ */
pio_timing |= pio_modes[pio];
csb5_pio |= (pio << (4*drive->dn));
dma_timing |= dma_modes[speed - XFER_MW_DMA_0];
@@ -242,6 +241,9 @@
case XFER_UDMA_2:
case XFER_UDMA_1:
case XFER_UDMA_0:
+ /*
+ * TODO: always setup PIO mode so this won't be needed
+ */
pio_timing |= pio_modes[pio];
csb5_pio |= (pio << (4*drive->dn));
dma_timing |= dma_modes[2];
@@ -262,72 +264,21 @@
return (ide_config_drive_speed(drive, speed));
}
-static void config_chipset_for_pio (ide_drive_t *drive)
-{
- u16 eide_pio_timing[6] = {960, 480, 240, 180, 120, 90};
- u16 xfer_pio = drive->id->eide_pio_modes;
- u8 timing, speed, pio;
-
- pio = ide_get_best_pio_mode(drive, 255, 5, NULL);
-
- if (xfer_pio > 4)
- xfer_pio = 0;
-
- if (drive->id->eide_pio_iordy > 0)
- for (xfer_pio = 5;
- xfer_pio>0 &&
- drive->id->eide_pio_iordy>eide_pio_timing[xfer_pio];
- xfer_pio--);
- else
- xfer_pio = (drive->id->eide_pio_modes & 4) ? 0x05 :
- (drive->id->eide_pio_modes & 2) ? 0x04 :
- (drive->id->eide_pio_modes & 1) ? 0x03 :
- (drive->id->tPIO & 2) ? 0x02 :
- (drive->id->tPIO & 1) ? 0x01 : xfer_pio;
-
- timing = (xfer_pio >= pio) ? xfer_pio : pio;
-
- switch(timing) {
- case 4: speed = XFER_PIO_4;break;
- case 3: speed = XFER_PIO_3;break;
- case 2: speed = XFER_PIO_2;break;
- case 1: speed = XFER_PIO_1;break;
- default:
- speed = (!drive->id->tPIO) ? XFER_PIO_0 : XFER_PIO_SLOW;
- break;
- }
- (void) svwks_tune_chipset(drive, speed);
- drive->current_speed = speed;
-}
-
static void svwks_tune_drive (ide_drive_t *drive, u8 pio)
{
- if(pio == 255)
- (void) svwks_tune_chipset(drive, 255);
- else
- (void) svwks_tune_chipset(drive, (XFER_PIO_0 + pio));
-}
-
-static int config_chipset_for_dma (ide_drive_t *drive)
-{
- u8 speed = ide_max_dma_mode(drive);
-
- if (!(speed))
- speed = XFER_PIO_0 + ide_get_best_pio_mode(drive, 255, 5, NULL);
-
- (void) svwks_tune_chipset(drive, speed);
- return ide_dma_enable(drive);
+ pio = ide_get_best_pio_mode(drive, pio, 4, NULL);
+ (void)svwks_tune_chipset(drive, XFER_PIO_0 + pio);
}
static int svwks_config_drive_xfer_rate (ide_drive_t *drive)
{
drive->init_speed = 0;
- if (ide_use_dma(drive) && config_chipset_for_dma(drive))
+ if (ide_tune_dma(drive))
return 0;
if (ide_use_fast_pio(drive))
- config_chipset_for_pio(drive);
+ svwks_tune_drive(drive, 255);
return -1;
}
diff --git a/drivers/ide/pci/siimage.c b/drivers/ide/pci/siimage.c
index d09e74c..1a4444e 100644
--- a/drivers/ide/pci/siimage.c
+++ b/drivers/ide/pci/siimage.c
@@ -375,28 +375,6 @@
}
/**
- * config_chipset_for_dma - configure for DMA
- * @drive: drive to configure
- *
- * Called by the IDE layer when it wants the timings set up.
- * For the CMD680 we also need to set up the PIO timings and
- * enable DMA.
- */
-
-static int config_chipset_for_dma (ide_drive_t *drive)
-{
- u8 speed = ide_max_dma_mode(drive);
-
- if (!speed)
- return 0;
-
- if (siimage_tune_chipset(drive, speed))
- return 0;
-
- return ide_dma_enable(drive);
-}
-
-/**
* siimage_configure_drive_for_dma - set up for DMA transfers
* @drive: drive we are going to set up
*
@@ -408,7 +386,7 @@
static int siimage_config_drive_for_dma (ide_drive_t *drive)
{
- if (ide_use_dma(drive) && config_chipset_for_dma(drive))
+ if (ide_tune_dma(drive))
return 0;
if (ide_use_fast_pio(drive))
diff --git a/drivers/ide/pci/sis5513.c b/drivers/ide/pci/sis5513.c
index 2bde1b9..bb6cc4a 100644
--- a/drivers/ide/pci/sis5513.c
+++ b/drivers/ide/pci/sis5513.c
@@ -1,9 +1,11 @@
/*
- * linux/drivers/ide/pci/sis5513.c Version 0.16ac+vp Jun 18, 2003
+ * linux/drivers/ide/pci/sis5513.c Version 0.20 Mar 4, 2007
*
* Copyright (C) 1999-2000 Andre Hedrick <andre@linux-ide.org>
* Copyright (C) 2002 Lionel Bouton <Lionel.Bouton@inet6.fr>, Maintainer
* Copyright (C) 2003 Vojtech Pavlik <vojtech@suse.cz>
+ * Copyright (C) 2007 Bartlomiej Zolnierkiewicz
+ *
* May be copied or modified under the terms of the GNU General Public License
*
*
@@ -448,36 +450,15 @@
pci_write_config_byte(dev, 0x4b, reg4bh|rw_prefetch);
}
-
/* Set per-drive active and recovery time */
static void config_art_rwp_pio (ide_drive_t *drive, u8 pio)
{
ide_hwif_t *hwif = HWIF(drive);
struct pci_dev *dev = hwif->pci_dev;
- u8 timing, drive_pci, test1, test2;
-
- u16 eide_pio_timing[6] = {600, 390, 240, 180, 120, 90};
- u16 xfer_pio = drive->id->eide_pio_modes;
+ u8 drive_pci, test1, test2;
config_drive_art_rwp(drive);
- pio = ide_get_best_pio_mode(drive, 255, pio, NULL);
-
- if (xfer_pio> 4)
- xfer_pio = 0;
-
- if (drive->id->eide_pio_iordy > 0) {
- for (xfer_pio = 5;
- (xfer_pio > 0) &&
- (drive->id->eide_pio_iordy > eide_pio_timing[xfer_pio]);
- xfer_pio--);
- } else {
- xfer_pio = (drive->id->eide_pio_modes & 4) ? 0x05 :
- (drive->id->eide_pio_modes & 2) ? 0x04 :
- (drive->id->eide_pio_modes & 1) ? 0x03 : xfer_pio;
- }
-
- timing = (xfer_pio >= pio) ? xfer_pio : pio;
/* In pre ATA_133 case, drives sit at 0x40 + 4*drive->dn */
drive_pci = 0x40;
@@ -500,17 +481,18 @@
test1 &= ~0x0F;
test2 &= ~0x07;
- switch(timing) {
+ switch(pio) {
case 4: test1 |= 0x01; test2 |= 0x03; break;
case 3: test1 |= 0x03; test2 |= 0x03; break;
case 2: test1 |= 0x04; test2 |= 0x04; break;
case 1: test1 |= 0x07; test2 |= 0x06; break;
+ case 0: /* PIO0: register setting == X000 */
default: break;
}
pci_write_config_byte(dev, drive_pci, test1);
pci_write_config_byte(dev, drive_pci+1, test2);
} else if (chipset_family < ATA_133) {
- switch(timing) { /* active recovery
+ switch(pio) { /* active recovery
v v */
case 4: test1 = 0x30|0x01; break;
case 3: test1 = 0x30|0x03; break;
@@ -525,24 +507,28 @@
pci_read_config_dword(dev, drive_pci, &test3);
test3 &= 0xc0c00fff;
if (test3 & 0x08) {
- test3 |= (unsigned long)ini_time_value[ATA_133][timing] << 12;
- test3 |= (unsigned long)act_time_value[ATA_133][timing] << 16;
- test3 |= (unsigned long)rco_time_value[ATA_133][timing] << 24;
+ test3 |= ini_time_value[ATA_133][pio] << 12;
+ test3 |= act_time_value[ATA_133][pio] << 16;
+ test3 |= rco_time_value[ATA_133][pio] << 24;
} else {
- test3 |= (unsigned long)ini_time_value[ATA_100][timing] << 12;
- test3 |= (unsigned long)act_time_value[ATA_100][timing] << 16;
- test3 |= (unsigned long)rco_time_value[ATA_100][timing] << 24;
+ test3 |= ini_time_value[ATA_100][pio] << 12;
+ test3 |= act_time_value[ATA_100][pio] << 16;
+ test3 |= rco_time_value[ATA_100][pio] << 24;
}
pci_write_config_dword(dev, drive_pci, test3);
}
}
-static int config_chipset_for_pio (ide_drive_t *drive, u8 pio)
+static int sis5513_tune_drive(ide_drive_t *drive, u8 pio)
{
- if (pio == 255)
- pio = ide_find_best_mode(drive, XFER_PIO | XFER_EPIO) - XFER_PIO_0;
+ pio = ide_get_best_pio_mode(drive, pio, 4, NULL);
config_art_rwp_pio(drive, pio);
- return ide_config_drive_speed(drive, XFER_PIO_0 + min_t(u8, pio, 4));
+ return ide_config_drive_speed(drive, XFER_PIO_0 + pio);
+}
+
+static void sis5513_tuneproc(ide_drive_t *drive, u8 pio)
+{
+ (void)sis5513_tune_drive(drive, pio);
}
static int sis5513_tune_chipset (ide_drive_t *drive, u8 xferspeed)
@@ -622,25 +608,26 @@
case XFER_SW_DMA_1:
case XFER_SW_DMA_0:
break;
- case XFER_PIO_4: return((int) config_chipset_for_pio(drive, 4));
- case XFER_PIO_3: return((int) config_chipset_for_pio(drive, 3));
- case XFER_PIO_2: return((int) config_chipset_for_pio(drive, 2));
- case XFER_PIO_1: return((int) config_chipset_for_pio(drive, 1));
+ case XFER_PIO_4:
+ case XFER_PIO_3:
+ case XFER_PIO_2:
+ case XFER_PIO_1:
case XFER_PIO_0:
- default: return((int) config_chipset_for_pio(drive, 0));
+ return sis5513_tune_drive(drive, speed - XFER_PIO_0);
+ default:
+ BUG();
+ break;
}
- return ((int) ide_config_drive_speed(drive, speed));
-}
-
-static void sis5513_tune_drive (ide_drive_t *drive, u8 pio)
-{
- (void) config_chipset_for_pio(drive, pio);
+ return ide_config_drive_speed(drive, speed);
}
static int sis5513_config_xfer_rate(ide_drive_t *drive)
{
- config_art_rwp_pio(drive, 5);
+ /*
+ * TODO: always set PIO mode and remove this
+ */
+ sis5513_tuneproc(drive, 255);
drive->init_speed = 0;
@@ -648,7 +635,7 @@
return 0;
if (ide_use_fast_pio(drive))
- sis5513_tune_drive(drive, 5);
+ sis5513_tuneproc(drive, 255);
return -1;
}
@@ -836,7 +823,7 @@
if (!hwif->irq)
hwif->irq = hwif->channel ? 15 : 14;
- hwif->tuneproc = &sis5513_tune_drive;
+ hwif->tuneproc = &sis5513_tuneproc;
hwif->speedproc = &sis5513_tune_chipset;
if (!(hwif->dma_base)) {
diff --git a/drivers/ide/pci/sl82c105.c b/drivers/ide/pci/sl82c105.c
index fe3b4b9..7c383d9 100644
--- a/drivers/ide/pci/sl82c105.c
+++ b/drivers/ide/pci/sl82c105.c
@@ -82,7 +82,14 @@
pio = ide_get_best_pio_mode(drive, pio, 5, &p);
- drive->drive_data = drv_ctrl = get_pio_timings(&p);
+ drv_ctrl = get_pio_timings(&p);
+
+ /*
+ * Store the PIO timings so that we can restore them
+ * in case DMA will be turned off...
+ */
+ drive->drive_data &= 0xffff0000;
+ drive->drive_data |= drv_ctrl;
if (!drive->using_dma) {
/*
@@ -100,17 +107,55 @@
}
/*
- * Configure the drive for DMA.
- * We'll program the chipset only when DMA is actually turned on.
+ * Configure the drive and chipset for a new transfer speed.
*/
-static int config_for_dma(ide_drive_t *drive)
+static int sl82c105_tune_chipset(ide_drive_t *drive, u8 speed)
{
- DBG(("config_for_dma(drive:%s)\n", drive->name));
+ static u16 mwdma_timings[] = {0x0707, 0x0201, 0x0200};
+ u16 drv_ctrl;
- if (ide_config_drive_speed(drive, XFER_MW_DMA_2) != 0)
- return 0;
+ DBG(("sl82c105_tune_chipset(drive:%s, speed:%s)\n",
+ drive->name, ide_xfer_verbose(speed)));
- return ide_dma_enable(drive);
+ speed = ide_rate_filter(drive, speed);
+
+ switch (speed) {
+ case XFER_MW_DMA_2:
+ case XFER_MW_DMA_1:
+ case XFER_MW_DMA_0:
+ drv_ctrl = mwdma_timings[speed - XFER_MW_DMA_0];
+
+ /*
+ * Store the DMA timings so that we can actually program
+ * them when DMA will be turned on...
+ */
+ drive->drive_data &= 0x0000ffff;
+ drive->drive_data |= (unsigned long)drv_ctrl << 16;
+
+ /*
+ * If we are already using DMA, we just reprogram
+ * the drive control register.
+ */
+ if (drive->using_dma) {
+ struct pci_dev *dev = HWIF(drive)->pci_dev;
+ int reg = 0x44 + drive->dn * 4;
+
+ pci_write_config_word(dev, reg, drv_ctrl);
+ }
+ break;
+ case XFER_PIO_5:
+ case XFER_PIO_4:
+ case XFER_PIO_3:
+ case XFER_PIO_2:
+ case XFER_PIO_1:
+ case XFER_PIO_0:
+ (void) sl82c105_tune_pio(drive, speed - XFER_PIO_0);
+ break;
+ default:
+ return -1;
+ }
+
+ return ide_config_drive_speed(drive, speed);
}
/*
@@ -120,7 +165,7 @@
{
DBG(("sl82c105_ide_dma_check(drive:%s)\n", drive->name));
- if (ide_use_dma(drive) && config_for_dma(drive))
+ if (ide_tune_dma(drive))
return 0;
return -1;
@@ -219,7 +264,7 @@
rc = __ide_dma_on(drive);
if (rc == 0) {
- pci_write_config_word(dev, reg, 0x0200);
+ pci_write_config_word(dev, reg, drive->drive_data >> 16);
printk(KERN_INFO "%s: DMA enabled\n", drive->name);
}
@@ -304,7 +349,7 @@
/*
* The bridge should be part of the same device, but function 0.
*/
- bridge = pci_find_slot(dev->bus->number,
+ bridge = pci_get_bus_and_slot(dev->bus->number,
PCI_DEVFN(PCI_SLOT(dev->devfn), 0));
if (!bridge)
return -1;
@@ -314,13 +359,15 @@
*/
if (bridge->vendor != PCI_VENDOR_ID_WINBOND ||
bridge->device != PCI_DEVICE_ID_WINBOND_83C553 ||
- bridge->class >> 8 != PCI_CLASS_BRIDGE_ISA)
+ bridge->class >> 8 != PCI_CLASS_BRIDGE_ISA) {
+ pci_dev_put(bridge);
return -1;
-
+ }
/*
* We need to find function 0's revision, not function 1
*/
pci_read_config_byte(bridge, PCI_REVISION_ID, &rev);
+ pci_dev_put(bridge);
return rev;
}
@@ -357,6 +404,7 @@
DBG(("init_hwif_sl82c105(hwif: ide%d)\n", hwif->index));
hwif->tuneproc = &sl82c105_tune_drive;
+ hwif->speedproc = &sl82c105_tune_chipset;
hwif->selectproc = &sl82c105_selectproc;
hwif->resetproc = &sl82c105_resetproc;
@@ -388,7 +436,7 @@
}
hwif->atapi_dma = 1;
- hwif->mwdma_mask = 0x04;
+ hwif->mwdma_mask = 0x07;
hwif->ide_dma_check = &sl82c105_ide_dma_check;
hwif->ide_dma_on = &sl82c105_ide_dma_on;
diff --git a/include/linux/ide.h b/include/linux/ide.h
index df4e6a5..07aba87 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1281,7 +1281,6 @@
int ide_in_drive_list(struct hd_driveid *, const struct drive_list_entry *);
int __ide_dma_bad_drive(ide_drive_t *);
int __ide_dma_good_drive(ide_drive_t *);
-int ide_use_dma(ide_drive_t *);
u8 ide_max_dma_mode(ide_drive_t *);
int ide_tune_dma(ide_drive_t *);
void ide_dma_off(ide_drive_t *);
@@ -1309,7 +1308,6 @@
#endif /* CONFIG_BLK_DEV_IDEDMA_PCI */
#else
-static inline int ide_use_dma(ide_drive_t *drive) { return 0; }
static inline u8 ide_max_dma_mode(ide_drive_t *drive) { return 0; }
static inline int ide_tune_dma(ide_drive_t *drive) { return 0; }
static inline void ide_dma_off(ide_drive_t *drive) { ; }
@@ -1357,7 +1355,6 @@
/* ide-lib.c */
u8 ide_rate_filter(ide_drive_t *, u8);
-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);