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

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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
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@@ -33,7 +33,7 @@
#include <linux/libata.h> #include <linux/libata.h>
#define DRV_NAME "pata_optidma" #define DRV_NAME "pata_optidma"
#define DRV_VERSION "0.2.4" #define DRV_VERSION "0.3.2"
enum { enum {
READ_REG = 0, /* index of Read cycle timing register */ 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)) if (ap->port_no && !pci_test_config_bits(pdev, &optidma_enable_bits))
return -ENOENT; return -ENOENT;
ap->cbl = ATA_CBL_PATA40;
return ata_std_prereset(ap); 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 * @ap: ATA interface
* @adev: ATA device * @adev: ATA device
* @mode: Mode to set * @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. * 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); struct ata_device *pair = ata_dev_pair(adev);
int pio = adev->pio_mode - XFER_PIO_0; 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 * @ap: ATA port
* @adev: device * @adev: device
* @mode: desired mode * @mode: desired mode
@@ -213,7 +212,7 @@ static void optidma_set_mode(struct ata_port *ap, struct ata_device *adev, u8 mo
* one * 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); struct pci_dev *pdev = to_pci_dev(ap->host->dev);
u8 udcfg; 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); pci_read_config_byte(pdev, 0x44, &udcfg);
if (mode <= XFER_UDMA_0) { if (mode <= XFER_UDMA_0) {
udcfg &= ~(1 << unit); udcfg &= ~(1 << unit);
optidma_set_mode(ap, adev, adev->dma_mode); optidma_mode_setup(ap, adev, adev->dma_mode);
} else { } else {
udcfg |= (1 << unit); udcfg |= (1 << unit);
if (ap->port_no) { 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) 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) 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) 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) 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 * @ap: port to set up
* *
* Finalise the configuration by writing the nibble of extra bits * Use the standard setup to tune the chipset and then finalise the
* of data into the chip. * 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; u8 r;
int nybble = 4 * ap->port_no; int nybble = 4 * ap->port_no;
struct pci_dev *pdev = to_pci_dev(ap->host->dev); 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]) +
r &= (0x0F << nybble); (optidma_make_bits43(&ap->device[0]) << 2)) << nybble;
r |= (optidma_make_bits43(&ap->device[0]) + pci_write_config_byte(pdev, 0x43, r);
(optidma_make_bits43(&ap->device[0]) << 2)) << nybble; }
return rc;
pci_write_config_byte(pdev, 0x43, r);
} }
static struct scsi_host_template optidma_sht = { static struct scsi_host_template optidma_sht = {
@@ -381,7 +383,8 @@ static struct ata_port_operations optidma_port_ops = {
.thaw = ata_bmdma_thaw, .thaw = ata_bmdma_thaw,
.post_internal_cmd = ata_bmdma_post_internal_cmd, .post_internal_cmd = ata_bmdma_post_internal_cmd,
.error_handler = optidma_error_handler, .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_setup = ata_bmdma_setup,
.bmdma_start = ata_bmdma_start, .bmdma_start = ata_bmdma_start,
@@ -416,7 +419,8 @@ static struct ata_port_operations optiplus_port_ops = {
.thaw = ata_bmdma_thaw, .thaw = ata_bmdma_thaw,
.post_internal_cmd = ata_bmdma_post_internal_cmd, .post_internal_cmd = ata_bmdma_post_internal_cmd,
.error_handler = optidma_error_handler, .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_setup = ata_bmdma_setup,
.bmdma_start = ata_bmdma_start, .bmdma_start = ata_bmdma_start,