diff options
| author | Alan Cox <alan@lxorguk.ukuu.org.uk> | 2007-03-08 19:33:29 +0000 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2007-04-28 14:15:57 -0400 |
| commit | 6bfed3fb035b4eff59160c2da5e3fbb69d6b0531 (patch) | |
| tree | 3c040f5f8bb351994f2cfb54e6e278fea8f593dc /drivers | |
| parent | 847086069cdb5eac14f70cd0aea8545d499c80b4 (diff) | |
| download | op-kernel-dev-6bfed3fb035b4eff59160c2da5e3fbb69d6b0531.zip op-kernel-dev-6bfed3fb035b4eff59160c2da5e3fbb69d6b0531.tar.gz | |
pata_efar: support ->cable_detect
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/ata/pata_efar.c | 31 |
1 files changed, 22 insertions, 9 deletions
diff --git a/drivers/ata/pata_efar.c b/drivers/ata/pata_efar.c index dac7a65..a321685 100644 --- a/drivers/ata/pata_efar.c +++ b/drivers/ata/pata_efar.c @@ -22,10 +22,10 @@ #include <linux/ata.h> #define DRV_NAME "pata_efar" -#define DRV_VERSION "0.4.3" +#define DRV_VERSION "0.4.4" /** - * efar_pre_reset - check for 40/80 pin + * efar_pre_reset - Enable bits * @ap: Port * * Perform cable detection for the EFAR ATA interface. This is @@ -38,18 +38,11 @@ static int efar_pre_reset(struct ata_port *ap) { 0x41U, 1U, 0x80UL, 0x80UL }, /* port 0 */ { 0x43U, 1U, 0x80UL, 0x80UL }, /* port 1 */ }; - struct pci_dev *pdev = to_pci_dev(ap->host->dev); - u8 tmp; if (!pci_test_config_bits(pdev, &efar_enable_bits[ap->port_no])) return -ENOENT; - pci_read_config_byte(pdev, 0x47, &tmp); - if (tmp & (2 >> ap->port_no)) - ap->cbl = ATA_CBL_PATA40; - else - ap->cbl = ATA_CBL_PATA80; return ata_std_prereset(ap); } @@ -67,6 +60,25 @@ static void efar_error_handler(struct ata_port *ap) } /** + * efar_cable_detect - check for 40/80 pin + * @ap: Port + * + * Perform cable detection for the EFAR ATA interface. This is + * different to the PIIX arrangement + */ + +static int efar_cable_detect(struct ata_port *ap) +{ + struct pci_dev *pdev = to_pci_dev(ap->host->dev); + u8 tmp; + + pci_read_config_byte(pdev, 0x47, &tmp); + if (tmp & (2 >> ap->port_no)) + return ATA_CBL_PATA40; + return ATA_CBL_PATA80; +} + +/** * efar_set_piomode - Initialize host controller PATA PIO timings * @ap: Port whose timings we are configuring * @adev: um @@ -256,6 +268,7 @@ static const struct ata_port_operations efar_ops = { .thaw = ata_bmdma_thaw, .error_handler = efar_error_handler, .post_internal_cmd = ata_bmdma_post_internal_cmd, + .cable_detect = efar_cable_detect, .bmdma_setup = ata_bmdma_setup, .bmdma_start = ata_bmdma_start, |
