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Subject[PATCH 51/68] slc90e66: convert to ide2libata
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Subject: [PATCH] slc90e66: convert to ide2libata

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
drivers/ata/pata_efar.h | 13 ++++-
drivers/ide/slc90e66.c | 113 ++----------------------------------------------
2 files changed, 16 insertions(+), 110 deletions(-)

Index: b/drivers/ata/pata_efar.h
===================================================================
--- a/drivers/ata/pata_efar.h
+++ b/drivers/ata/pata_efar.h
@@ -146,7 +146,16 @@ static void efar_set_dmamode(struct ata_
pci_write_config_byte(dev, 0x48, udma_enable);

spin_unlock_irqrestore(&efar_lock, flags);
- } else
- /* MWDMA is driven by the PIO timings. */
+ } else {
+ /* Normal DMA is driven by the PIO timings. */
+#ifdef __IDE2LIBATA
+ if (speed >= XFER_MW_DMA_0)
+ adev->pio_mode = ata_mwdma_to_pio(speed) + XFER_PIO_0;
+ else
+ adev->pio_mode = XFER_PIO_2; /* for SWDMA2 */
+ efar_set_timings(ap, adev, adev->pio_mode - XFER_PIO_0, 1);
+#else
efar_set_timings(ap, adev, ata_mwdma_to_pio(speed), 1);
+#endif
+ }
}
Index: b/drivers/ide/slc90e66.c
===================================================================
--- a/drivers/ide/slc90e66.c
+++ b/drivers/ide/slc90e66.c
@@ -16,116 +16,13 @@

#define DRV_NAME "slc90e66"

-static DEFINE_SPINLOCK(slc90e66_lock);
-
-static void slc90e66_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive)
-{
- struct pci_dev *dev = to_pci_dev(hwif->dev);
- int is_slave = drive->dn & 1;
- int master_port = hwif->channel ? 0x42 : 0x40;
- int slave_port = 0x44;
- unsigned long flags;
- u16 master_data;
- u8 slave_data;
- int control = 0;
- const u8 pio = drive->pio_mode - XFER_PIO_0;
-
- /* ISP RTC */
- static const u8 timings[][2] = {
- { 0, 0 },
- { 0, 0 },
- { 1, 0 },
- { 2, 1 },
- { 2, 3 }, };
-
- spin_lock_irqsave(&slc90e66_lock, flags);
- pci_read_config_word(dev, master_port, &master_data);
-
- if (pio > 1)
- control |= 1; /* Programmable timing on */
- if (drive->media == ide_disk)
- control |= 4; /* Prefetch, post write */
- if (ide_pio_need_iordy(drive, pio))
- control |= 2; /* IORDY */
- if (is_slave) {
- master_data |= 0x4000;
- master_data &= ~0x0070;
- /* Set PPE, IE and TIME */
- master_data |= control << 4;
- pci_read_config_byte(dev, slave_port, &slave_data);
- slave_data &= hwif->channel ? 0x0f : 0xf0;
- slave_data |= ((timings[pio][0] << 2) | timings[pio][1]) <<
- (hwif->channel ? 4 : 0);
- } else {
- master_data &= ~0x3307;
- /* enable PPE, IE and TIME */
- master_data |= control;
- master_data |= (timings[pio][0] << 12) | (timings[pio][1] << 8);
- }
- pci_write_config_word(dev, master_port, master_data);
- if (is_slave)
- pci_write_config_byte(dev, slave_port, slave_data);
- spin_unlock_irqrestore(&slc90e66_lock, flags);
-}
-
-static void slc90e66_set_dma_mode(ide_hwif_t *hwif, ide_drive_t *drive)
-{
- struct pci_dev *dev = to_pci_dev(hwif->dev);
- u8 maslave = hwif->channel ? 0x42 : 0x40;
- int sitre = 0, a_speed = 7 << (drive->dn * 4);
- int u_speed = 0, u_flag = 1 << drive->dn;
- u16 reg4042, reg44, reg48, reg4a;
- const u8 speed = drive->dma_mode;
-
- pci_read_config_word(dev, maslave, &reg4042);
- sitre = (reg4042 & 0x4000) ? 1 : 0;
- pci_read_config_word(dev, 0x44, &reg44);
- pci_read_config_word(dev, 0x48, &reg48);
- pci_read_config_word(dev, 0x4a, &reg4a);
-
- if (speed >= XFER_UDMA_0) {
- u_speed = (speed - XFER_UDMA_0) << (drive->dn * 4);
-
- if (!(reg48 & u_flag))
- pci_write_config_word(dev, 0x48, reg48|u_flag);
- if ((reg4a & a_speed) != u_speed) {
- pci_write_config_word(dev, 0x4a, reg4a & ~a_speed);
- pci_read_config_word(dev, 0x4a, &reg4a);
- pci_write_config_word(dev, 0x4a, reg4a|u_speed);
- }
- } else {
- const u8 mwdma_to_pio[] = { 0, 3, 4 };
-
- if (reg48 & u_flag)
- pci_write_config_word(dev, 0x48, reg48 & ~u_flag);
- if (reg4a & a_speed)
- pci_write_config_word(dev, 0x4a, reg4a & ~a_speed);
-
- if (speed >= XFER_MW_DMA_0)
- drive->pio_mode =
- mwdma_to_pio[speed - XFER_MW_DMA_0] + XFER_PIO_0;
- else
- drive->pio_mode = XFER_PIO_2; /* for SWDMA2 */
-
- slc90e66_set_pio_mode(hwif, drive);
- }
-}
-
-static int slc90e66_cable_detect(ide_hwif_t *hwif)
-{
- struct pci_dev *dev = to_pci_dev(hwif->dev);
- u8 reg47 = 0, mask = hwif->channel ? 0x01 : 0x02;
-
- pci_read_config_byte(dev, 0x47, &reg47);
-
- /* bit[0(1)]: 0:80, 1:40 */
- return (reg47 & mask) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
-}
+#include <linux/ide2libata.h>
+#include "../ata/pata_efar.h"

static const struct ide_port_ops slc90e66_port_ops = {
- .set_pio_mode = slc90e66_set_pio_mode,
- .set_dma_mode = slc90e66_set_dma_mode,
- .cable_detect = slc90e66_cable_detect,
+ .set_pio_mode = efar_set_piomode,
+ .set_dma_mode = efar_set_dmamode,
+ .cable_detect = efar_cable_detect,
};

static const struct ide_port_info slc90e66_chipset __devinitdata = {

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