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Subject[PATCH 32/68] alim15x3: convert to ide2libata
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Subject: [PATCH] alim15x3: convert to ide2libata

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
drivers/ata/pata_ali.h | 55 +++++++++-
drivers/ide/alim15x3.c | 260 ++-----------------------------------------------
2 files changed, 61 insertions(+), 254 deletions(-)

Index: b/drivers/ata/pata_ali.h
===================================================================
--- a/drivers/ata/pata_ali.h
+++ b/drivers/ata/pata_ali.h
@@ -39,7 +39,6 @@ static int ali_cable_override(struct pci
return 0;
}

-#ifdef __LINUX_LIBATA_H__
/**
* ali_c2_cable_detect - cable detection
* @ap: ATA port
@@ -148,7 +147,12 @@ static void ali_set_piomode(struct ata_p
{
struct ata_device *pair = ata_dev_pair(adev);
struct ata_timing t;
+#ifndef __IDE2LIBATA
unsigned long T = 1000000000 / 33333; /* PCI clock based */
+#else
+ int bus_speed = ide_pci_clk ? ide_pci_clk : 33;
+ unsigned long T = 1000000 / bus_speed; /* PCI clock based */
+#endif

ata_timing_compute(adev->id, adev->pio_mode, adev->pio_mode, &t, T, 1);
if (pair) {
@@ -183,12 +187,18 @@ static void ali_set_dmamode(struct ata_p
static u8 udma_timing[7] = { 0xC, 0xB, 0xA, 0x9, 0x8, 0xF, 0xD };
struct ata_device *pair = ata_dev_pair(adev);
struct ata_timing t;
+#ifndef __IDE2LIBATA
unsigned long T = 1000000000 / 33333; /* PCI clock based */
+#else
+ int bus_speed = ide_pci_clk ? ide_pci_clk : 33;
+ unsigned long T = 1000000 / bus_speed; /* PCI clock based */
+#endif
struct pci_dev *pdev = to_pci_dev(ap->host->dev);

-
+#ifndef __IDE2LIBATA
if (adev->class == ATA_DEV_ATA)
ali_fifo_control(ap, adev, 0x08);
+#endif

if (adev->dma_mode >= XFER_UDMA_0) {
ali_program_modes(ap, adev, NULL, udma_timing[adev->dma_mode - XFER_UDMA_0]);
@@ -230,39 +240,73 @@ static int ali_init_chipset(struct devic
struct pci_dev *pdev = to_pci_dev(dev);
u8 tmp;
struct pci_dev *north;
-
+#ifdef __IDE2LIBATA
+ struct pci_dev *ali_isa_bridge = isa_dev;
+#endif
/*
* The chipset revision selects the driver operations and
* mode data.
*/

if (pdev->revision <= 0x20) {
+#ifdef __IDE2LIBATA
+ pci_read_config_byte(pdev, 0x4b, &tmp);
+ pci_write_config_byte(pdev, 0x4b, tmp & 0x7F);
+ if (pdev->revision == 0x20) {
+ pci_read_config_byte(pdev, 0x53, &tmp);
+ tmp = (tmp & ~0x02) | 0x01;
+ pci_write_config_byte(pdev, 0x53, tmp);
+ if (isa_dev) {
+ pci_read_config_byte(isa_dev, 0x5e, &tmp);
+ chip_is_1543c_e = ((tmp & 0x1e) == 0x12) ? 1 : 0;
+ }
+ }
+#else
pci_read_config_byte(pdev, 0x53, &tmp);
tmp |= 0x03;
pci_write_config_byte(pdev, 0x53, tmp);
+#endif
} else {
+#ifndef __IDE2LIBATA
pci_read_config_byte(pdev, 0x4a, &tmp);
pci_write_config_byte(pdev, 0x4a, tmp | 0x20);
+#endif
pci_read_config_byte(pdev, 0x4B, &tmp);
if (pdev->revision < 0xC2)
/* 1543-E/F, 1543C-C, 1543C-D, 1543C-E */
/* Clear CD-ROM DMA write bit */
tmp &= 0x7F;
/* Cable and UDMA */
+#ifdef __IDE2LIBATA
+ if (pdev->revision >= 0xc2)
+ tmp |= 0x08;
+#else
if (pdev->revision >= 0xc2)
tmp |= 0x01;
- pci_write_config_byte(pdev, 0x4B, tmp | 0x08);
+ tmp |= 0x08;
+#endif
+ pci_write_config_byte(pdev, 0x4B, tmp);
/*
* CD_ROM DMA on (0x53 bit 0). Enable this even if we want
* to use PIO. 0x53 bit 1 (rev 20 only) - enable FIFO control
* via 0x54/55.
*/
pci_read_config_byte(pdev, 0x53, &tmp);
+#ifdef __IDE2LIBATA
+ if (pdev->revision == 0xc7 || pdev->revision == 0xc8)
+#else
if (pdev->revision >= 0xc7)
+#endif
tmp |= 0x03;
else
tmp |= 0x01; /* CD_ROM enable for DMA */
pci_write_config_byte(pdev, 0x53, tmp);
+#ifdef __IDE2LIBATA
+ if (pdev->revision < 0xC2 && isa_dev) {
+ pci_read_config_byte(isa_dev, 0x5e, &tmp);
+ chip_is_1543c_e = ((tmp & 0x1e) == 0x12) ? 1 : 0;
+ }
+#endif
}
north = pci_get_bus_and_slot(0, PCI_DEVFN(0,0));
if (north && north->vendor == PCI_VENDOR_ID_AL && ali_isa_bridge) {
@@ -275,7 +319,8 @@ static int ali_init_chipset(struct devic
pci_write_config_byte(ali_isa_bridge, 0x79, tmp | 0x02);
}
pci_dev_put(north);
+#ifndef __IDE2LIBATA
ata_pci_bmdma_clear_simplex(pdev);
+#endif
return 0;
}
-#endif
Index: b/drivers/ide/alim15x3.c
===================================================================
--- a/drivers/ide/alim15x3.c
+++ b/drivers/ide/alim15x3.c
@@ -47,89 +47,6 @@ static u8 m5229_revision;
static u8 chip_is_1543c_e;
static struct pci_dev *isa_dev;

-static void ali_fifo_control(ide_hwif_t *hwif, ide_drive_t *drive, int on)
-{
- struct pci_dev *pdev = to_pci_dev(hwif->dev);
- int pio_fifo = 0x54 + hwif->channel;
- u8 fifo;
- int shift = 4 * (drive->dn & 1);
-
- pci_read_config_byte(pdev, pio_fifo, &fifo);
- fifo &= ~(0x0F << shift);
- fifo |= (on << shift);
- pci_write_config_byte(pdev, pio_fifo, fifo);
-}
-
-static void ali_program_timings(ide_hwif_t *hwif, ide_drive_t *drive,
- struct ata_timing *t, u8 ultra)
-{
- struct pci_dev *dev = to_pci_dev(hwif->dev);
- int port = hwif->channel ? 0x5c : 0x58;
- int udmat = 0x56 + hwif->channel;
- u8 unit = drive->dn & 1, udma;
- int shift = 4 * unit;
-
- /* Set up the UDMA */
- pci_read_config_byte(dev, udmat, &udma);
- udma &= ~(0x0F << shift);
- udma |= ultra << shift;
- pci_write_config_byte(dev, udmat, udma);
-
- if (t == NULL)
- return;
-
- t->setup = clamp_val(t->setup, 1, 8) & 7;
- t->act8b = clamp_val(t->act8b, 1, 8) & 7;
- t->rec8b = clamp_val(t->rec8b, 1, 16) & 15;
- t->active = clamp_val(t->active, 1, 8) & 7;
- t->recover = clamp_val(t->recover, 1, 16) & 15;
-
- pci_write_config_byte(dev, port, t->setup);
- pci_write_config_byte(dev, port + 1, (t->act8b << 4) | t->rec8b);
- pci_write_config_byte(dev, port + unit + 2,
- (t->active << 4) | t->recover);
-}
-
-/**
- * ali_set_pio_mode - set host controller for PIO mode
- * @hwif: port
- * @drive: drive
- *
- * Program the controller for the given PIO mode.
- */
-
-static void ali_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive)
-{
- ide_drive_t *pair = ide_get_pair_dev(drive);
- int bus_speed = ide_pci_clk ? ide_pci_clk : 33;
- unsigned long T = 1000000 / bus_speed; /* PCI clock based */
- struct ata_timing t;
-
- ata_timing_compute(drive->id, drive->pio_mode, drive->pio_mode,
- &t, T, 1);
- if (pair) {
- struct ata_timing p;
-
- ata_timing_compute(pair->id, pair->pio_mode, pair->pio_mode,
- &p, T, 1);
- ata_timing_merge(&p, &t, &t,
- ATA_TIMING_SETUP | ATA_TIMING_8BIT);
- if (pair->dma_mode) {
- ata_timing_compute(pair->id, pair->dma_mode,
- pair->pio_mode, &p, T, 1);
- ata_timing_merge(&p, &t, &t,
- ATA_TIMING_SETUP | ATA_TIMING_8BIT);
- }
- }
-
- /*
- * PIO mode => ATA FIFO on, ATAPI FIFO off
- */
- ali_fifo_control(hwif, drive, (drive->media == ide_disk) ? 0x05 : 0x00);
-
- ali_program_timings(hwif, drive, &t, 0);
-}
-
/**
* ali_udma_filter - compute UDMA mask
* @drive: IDE device
@@ -156,54 +73,6 @@ static u8 ali_udma_filter(ide_drive_t *d
}

/**
- * ali_set_dma_mode - set host controller for DMA mode
- * @hwif: port
- * @drive: drive
- *
- * Configure the hardware for the desired IDE transfer mode.
- */
-
-static void ali_set_dma_mode(ide_hwif_t *hwif, ide_drive_t *drive)
-{
- static u8 udma_timing[7] = { 0xC, 0xB, 0xA, 0x9, 0x8, 0xF, 0xD };
- struct pci_dev *dev = to_pci_dev(hwif->dev);
- ide_drive_t *pair = ide_get_pair_dev(drive);
- int bus_speed = ide_pci_clk ? ide_pci_clk : 33;
- unsigned long T = 1000000 / bus_speed; /* PCI clock based */
- const u8 speed = drive->dma_mode;
- u8 tmpbyte = 0x00;
- struct ata_timing t;
-
- if (speed < XFER_UDMA_0) {
- ata_timing_compute(drive->id, drive->dma_mode, drive->pio_mode,
- &t, T, 1);
- if (pair) {
- struct ata_timing p;
-
- ata_timing_compute(pair->id, pair->pio_mode,
- pair->pio_mode, &p, T, 1);
- ata_timing_merge(&p, &t, &t,
- ATA_TIMING_SETUP | ATA_TIMING_8BIT);
- if (pair->dma_mode) {
- ata_timing_compute(pair->id, pair->dma_mode,
- pair->pio_mode, &p, T, 1);
- ata_timing_merge(&p, &t, &t,
- ATA_TIMING_SETUP | ATA_TIMING_8BIT);
- }
- }
- ali_program_timings(hwif, drive, &t, 0);
- } else {
- ali_program_timings(hwif, drive, NULL,
- udma_timing[speed - XFER_UDMA_0]);
- if (speed >= XFER_UDMA_3) {
- pci_read_config_byte(dev, 0x4b, &tmpbyte);
- tmpbyte |= 1;
- pci_write_config_byte(dev, 0x4b, tmpbyte);
- }
- }
-}
-
-/**
* ali_dma_check - DMA check
* @drive: target device
* @cmd: command
@@ -220,6 +89,9 @@ static int ali_dma_check(ide_drive_t *dr
return 0;
}

+#include <linux/ide2libata.h>
+#include "../ata/pata_ali.h"
+
/**
* init_chipset_ali15x3 - Initialise an ALi IDE controller
* @dev: PCI device
@@ -231,110 +103,20 @@ static int ali_dma_check(ide_drive_t *dr
static int init_chipset_ali15x3(struct pci_dev *dev)
{
unsigned long flags;
- u8 tmpbyte;
- struct pci_dev *north = pci_get_slot(dev->bus, PCI_DEVFN(0,0));

m5229_revision = dev->revision;

isa_dev = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, NULL);

local_irq_save(flags);
+ ali_init_chipset(&dev->dev);
+ local_irq_restore(flags);

- if (m5229_revision < 0xC2) {
- /*
- * revision 0x20 (1543-E, 1543-F)
- * revision 0xC0, 0xC1 (1543C-C, 1543C-D, 1543C-E)
- * clear CD-ROM DMA write bit, m5229, 0x4b, bit 7
- */
- pci_read_config_byte(dev, 0x4b, &tmpbyte);
- /*
- * clear bit 7
- */
- pci_write_config_byte(dev, 0x4b, tmpbyte & 0x7F);
- /*
- * check m1533, 0x5e, bit 1~4 == 1001 => & 00011110 = 00010010
- */
- if (m5229_revision >= 0x20 && isa_dev) {
- pci_read_config_byte(isa_dev, 0x5e, &tmpbyte);
- chip_is_1543c_e = ((tmpbyte & 0x1e) == 0x12) ? 1: 0;
- }
- goto out;
- }
-
- /*
- * 1543C-B?, 1535, 1535D, 1553
- * Note 1: not all "motherboard" support this detection
- * Note 2: if no udma 66 device, the detection may "error".
- * but in this case, we will not set the device to
- * ultra 66, the detection result is not important
- */
-
- /*
- * enable "Cable Detection", m5229, 0x4b, bit3
- */
- pci_read_config_byte(dev, 0x4b, &tmpbyte);
- pci_write_config_byte(dev, 0x4b, tmpbyte | 0x08);
-
- /*
- * We should only tune the 1533 enable if we are using an ALi
- * North bridge. We might have no north found on some zany
- * box without a device at 0:0.0. The ALi bridge will be at
- * 0:0.0 so if we didn't find one we know what is cooking.
- */
- if (north && north->vendor != PCI_VENDOR_ID_AL)
- goto out;
-
- if (m5229_revision < 0xC5 && isa_dev)
- {
- /*
- * set south-bridge's enable bit, m1533, 0x79
- */
-
- pci_read_config_byte(isa_dev, 0x79, &tmpbyte);
- if (m5229_revision == 0xC2) {
- /*
- * 1543C-B0 (m1533, 0x79, bit 2)
- */
- pci_write_config_byte(isa_dev, 0x79, tmpbyte | 0x04);
- } else if (m5229_revision >= 0xC3) {
- /*
- * 1553/1535 (m1533, 0x79, bit 1)
- */
- pci_write_config_byte(isa_dev, 0x79, tmpbyte | 0x02);
- }
- }
-
-out:
- /*
- * CD_ROM DMA on (m5229, 0x53, bit0)
- * Enable this bit even if we want to use PIO.
- * PIO FIFO off (m5229, 0x53, bit1)
- * The hardware will use 0x54h and 0x55h to control PIO FIFO.
- * (Not on later devices it seems)
- *
- * 0x53 changes meaning on later revs - we must no touch
- * bit 1 on them. Need to check if 0x20 is the right break.
- */
- if (m5229_revision >= 0x20) {
- pci_read_config_byte(dev, 0x53, &tmpbyte);
-
- if (m5229_revision <= 0x20)
- tmpbyte = (tmpbyte & (~0x02)) | 0x01;
- else if (m5229_revision == 0xc7 || m5229_revision == 0xc8)
- tmpbyte |= 0x03;
- else
- tmpbyte |= 0x01;
-
- pci_write_config_byte(dev, 0x53, tmpbyte);
- }
- pci_dev_put(north);
pci_dev_put(isa_dev);
- local_irq_restore(flags);
+
return 0;
}

-#include "../ata/pata_ali.h"
-
/**
* ali_cable_detect - cable detection
* @hwif: IDE interface
@@ -345,29 +127,9 @@ out:

static int ali_cable_detect(ide_hwif_t *hwif)
{
- struct pci_dev *dev = to_pci_dev(hwif->dev);
- u8 cbl = ATA_CBL_PATA40, tmpbyte;
-
- if (m5229_revision >= 0xC2) {
- /*
- * m5229 80-pin cable detection (from Host View)
- *
- * 0x4a bit0 is 0 => primary channel has 80-pin
- * 0x4a bit1 is 0 => secondary channel has 80-pin
- *
- * Certain laptops use short but suitable cables
- * and don't implement the detect logic.
- */
- if (ali_cable_override(dev))
- cbl = ATA_CBL_PATA40_SHORT;
- else {
- pci_read_config_byte(dev, 0x4a, &tmpbyte);
- if ((tmpbyte & (1 << hwif->channel)) == 0)
- cbl = ATA_CBL_PATA80;
- }
- }
-
- return cbl;
+ if (m5229_revision >= 0xC2)
+ return ali_c2_cable_detect(hwif);
+ return ATA_CBL_PATA40;
}

#ifndef CONFIG_SPARC64
@@ -459,8 +221,8 @@ static int __devinit init_dma_ali15x3(id
}

static const struct ide_port_ops ali_port_ops = {
- .set_pio_mode = ali_set_pio_mode,
- .set_dma_mode = ali_set_dma_mode,
+ .set_pio_mode = ali_set_piomode,
+ .set_dma_mode = ali_set_dmamode,
.udma_filter = ali_udma_filter,
.cable_detect = ali_cable_detect,
};

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