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pata_optidma: rework for cable detect and to remove post_set_mode() 

A lot of noise because I had to rename the optidma_set_mode() method to
avoid confusion with the new ->set_mode() method that was added. Cable
detect side is pretty trivial.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Alan Cox 2007-03-26 21:43:43 -08:00 committed by Jeff Garzik
parent 2f5344b1be
commit 5c25bf0d28
1 changed files with 28 additions and 24 deletions
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52
drivers/ata/pata_optidma.c
View File

@ -33,7 +33,7 @@
#include <linux/libata.h>
#define DRV_NAME "pata_optidma"
#define DRV_VERSION "0.2.4"
#define DRV_VERSION "0.3.2"
enum {
READ_REG = 0, /* index of Read cycle timing register */
@ -62,7 +62,6 @@ static int optidma_pre_reset(struct ata_port *ap)
if (ap->port_no && !pci_test_config_bits(pdev, &optidma_enable_bits))
return -ENOENT;
ap->cbl = ATA_CBL_PATA40;
return ata_std_prereset(ap);
}
@ -115,7 +114,7 @@ static void optidma_lock(struct ata_port *ap)
}
/**
* optidma_set_mode - set mode data
* optidma_mode_setup - set mode data
* @ap: ATA interface
* @adev: ATA device
* @mode: Mode to set
@ -128,7 +127,7 @@ static void optidma_lock(struct ata_port *ap)
* IRQ here we depend on the host set locking to avoid catastrophe.
*/
static void optidma_set_mode(struct ata_port *ap, struct ata_device *adev, u8 mode)
static void optidma_mode_setup(struct ata_port *ap, struct ata_device *adev, u8 mode)
{
struct ata_device *pair = ata_dev_pair(adev);
int pio = adev->pio_mode - XFER_PIO_0;
@ -202,7 +201,7 @@ static void optidma_set_mode(struct ata_port *ap, struct ata_device *adev, u8 mo
}
/**
* optiplus_set_mode - DMA setup for Firestar Plus
* optiplus_mode_setup - DMA setup for Firestar Plus
* @ap: ATA port
* @adev: device
* @mode: desired mode
@ -213,7 +212,7 @@ static void optidma_set_mode(struct ata_port *ap, struct ata_device *adev, u8 mo
* one
*/
static void optiplus_set_mode(struct ata_port *ap, struct ata_device *adev, u8 mode)
static void optiplus_mode_setup(struct ata_port *ap, struct ata_device *adev, u8 mode)
{
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
u8 udcfg;
@ -225,7 +224,7 @@ static void optiplus_set_mode(struct ata_port *ap, struct ata_device *adev, u8 m
pci_read_config_byte(pdev, 0x44, &udcfg);
if (mode <= XFER_UDMA_0) {
udcfg &= ~(1 << unit);
optidma_set_mode(ap, adev, adev->dma_mode);
optidma_mode_setup(ap, adev, adev->dma_mode);
} else {
udcfg |= (1 << unit);
if (ap->port_no) {
@ -253,7 +252,7 @@ static void optiplus_set_mode(struct ata_port *ap, struct ata_device *adev, u8 m
static void optidma_set_pio_mode(struct ata_port *ap, struct ata_device *adev)
{
optidma_set_mode(ap, adev, adev->pio_mode);
optidma_mode_setup(ap, adev, adev->pio_mode);
}
/**
@ -268,7 +267,7 @@ static void optidma_set_pio_mode(struct ata_port *ap, struct ata_device *adev)
static void optidma_set_dma_mode(struct ata_port *ap, struct ata_device *adev)
{
optidma_set_mode(ap, adev, adev->dma_mode);
optidma_mode_setup(ap, adev, adev->dma_mode);
}
/**
@ -283,7 +282,7 @@ static void optidma_set_dma_mode(struct ata_port *ap, struct ata_device *adev)
static void optiplus_set_pio_mode(struct ata_port *ap, struct ata_device *adev)
{
optiplus_set_mode(ap, adev, adev->pio_mode);
optiplus_mode_setup(ap, adev, adev->pio_mode);
}
/**
@ -298,7 +297,7 @@ static void optiplus_set_pio_mode(struct ata_port *ap, struct ata_device *adev)
static void optiplus_set_dma_mode(struct ata_port *ap, struct ata_device *adev)
{
optiplus_set_mode(ap, adev, adev->dma_mode);
optiplus_mode_setup(ap, adev, adev->dma_mode);
}
/**
@ -322,26 +321,29 @@ static u8 optidma_make_bits43(struct ata_device *adev)
}
/**
* optidma_post_set_mode - finalize PCI setup
* optidma_set_mode - mode setup
* @ap: port to set up
*
* Finalise the configuration by writing the nibble of extra bits
* of data into the chip.
* Use the standard setup to tune the chipset and then finalise the
* configuration by writing the nibble of extra bits of data into
* the chip.
*/
static void optidma_post_set_mode(struct ata_port *ap)
static int optidma_set_mode(struct ata_port *ap, struct ata_device **r_failed)
{
u8 r;
int nybble = 4 * ap->port_no;
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
int rc = ata_do_set_mode(ap, r_failed);
if (rc == 0) {
pci_read_config_byte(pdev, 0x43, &r);
pci_read_config_byte(pdev, 0x43, &r);
r &= (0x0F << nybble);
r |= (optidma_make_bits43(&ap->device[0]) +
(optidma_make_bits43(&ap->device[0]) << 2)) << nybble;
pci_write_config_byte(pdev, 0x43, r);
r &= (0x0F << nybble);
r |= (optidma_make_bits43(&ap->device[0]) +
(optidma_make_bits43(&ap->device[0]) << 2)) << nybble;
pci_write_config_byte(pdev, 0x43, r);
}
return rc;
}
static struct scsi_host_template optidma_sht = {
@ -381,7 +383,8 @@ static struct ata_port_operations optidma_port_ops = {
.thaw = ata_bmdma_thaw,
.post_internal_cmd = ata_bmdma_post_internal_cmd,
.error_handler = optidma_error_handler,
.post_set_mode = optidma_post_set_mode,
.set_mode = optidma_set_mode,
.cable_detect = ata_cable_40wire,
.bmdma_setup = ata_bmdma_setup,
.bmdma_start = ata_bmdma_start,
@ -416,7 +419,8 @@ static struct ata_port_operations optiplus_port_ops = {
.thaw = ata_bmdma_thaw,
.post_internal_cmd = ata_bmdma_post_internal_cmd,
.error_handler = optidma_error_handler,
.post_set_mode = optidma_post_set_mode,
.set_mode = optidma_set_mode,
.cable_detect = ata_cable_40wire,
.bmdma_setup = ata_bmdma_setup,
.bmdma_start = ata_bmdma_start,