diff options
| -rw-r--r-- | drivers/ata/pata_hpt37x.c | 86 |
1 files changed, 56 insertions, 30 deletions
diff --git a/drivers/ata/pata_hpt37x.c b/drivers/ata/pata_hpt37x.c index d0a7df2e5ca7..378a8f862e82 100644 --- a/drivers/ata/pata_hpt37x.c +++ b/drivers/ata/pata_hpt37x.c @@ -303,6 +303,59 @@ static unsigned long hpt370a_filter(struct ata_device *adev, unsigned long mask) } /** + * hpt37x_cable_detect - Detect the cable type + * @ap: ATA port to detect on + * + * Return the cable type attached to this port + */ + +static int hpt37x_cable_detect(struct ata_port *ap) +{ + struct pci_dev *pdev = to_pci_dev(ap->host->dev); + u8 scr2, ata66; + + pci_read_config_byte(pdev, 0x5B, &scr2); + pci_write_config_byte(pdev, 0x5B, scr2 & ~0x01); + /* Cable register now active */ + pci_read_config_byte(pdev, 0x5A, &ata66); + /* Restore state */ + pci_write_config_byte(pdev, 0x5B, scr2); + + if (ata66 & (2 >> ap->port_no)) + return ATA_CBL_PATA40; + else + return ATA_CBL_PATA80; +} + +/** + * hpt374_fn1_cable_detect - Detect the cable type + * @ap: ATA port to detect on + * + * Return the cable type attached to this port + */ + +static int hpt374_fn1_cable_detect(struct ata_port *ap) +{ + struct pci_dev *pdev = to_pci_dev(ap->host->dev); + unsigned int mcrbase = 0x50 + 4 * ap->port_no; + u16 mcr3; + u8 ata66; + + /* Do the extra channel work */ + pci_read_config_word(pdev, mcrbase + 2, &mcr3); + /* Set bit 15 of 0x52 to enable TCBLID as input */ + pci_write_config_word(pdev, mcrbase + 2, mcr3 | 0x8000); + pci_read_config_byte(pdev, 0x5A, &ata66); + /* Reset TCBLID/FCBLID to output */ + pci_write_config_word(pdev, mcrbase + 2, mcr3); + + if (ata66 & (2 >> ap->port_no)) + return ATA_CBL_PATA40; + else + return ATA_CBL_PATA80; +} + +/** * hpt37x_pre_reset - reset the hpt37x bus * @link: ATA link to reset * @deadline: deadline jiffies for the operation @@ -312,7 +365,6 @@ static unsigned long hpt370a_filter(struct ata_device *adev, unsigned long mask) static int hpt37x_pre_reset(struct ata_link *link, unsigned long deadline) { - u8 scr2, ata66; struct ata_port *ap = link->ap; struct pci_dev *pdev = to_pci_dev(ap->host->dev); static const struct pci_bits hpt37x_enable_bits[] = { @@ -322,18 +374,6 @@ static int hpt37x_pre_reset(struct ata_link *link, unsigned long deadline) if (!pci_test_config_bits(pdev, &hpt37x_enable_bits[ap->port_no])) return -ENOENT; - pci_read_config_byte(pdev, 0x5B, &scr2); - pci_write_config_byte(pdev, 0x5B, scr2 & ~0x01); - /* Cable register now active */ - pci_read_config_byte(pdev, 0x5A, &ata66); - /* Restore state */ - pci_write_config_byte(pdev, 0x5B, scr2); - - if (ata66 & (2 >> ap->port_no)) - ap->cbl = ATA_CBL_PATA40; - else - ap->cbl = ATA_CBL_PATA80; - /* Reset the state machine */ pci_write_config_byte(pdev, 0x50 + 4 * ap->port_no, 0x37); udelay(100); @@ -347,29 +387,12 @@ static int hpt374_fn1_pre_reset(struct ata_link *link, unsigned long deadline) { 0x50, 1, 0x04, 0x04 }, { 0x54, 1, 0x04, 0x04 } }; - u16 mcr3; - u8 ata66; struct ata_port *ap = link->ap; struct pci_dev *pdev = to_pci_dev(ap->host->dev); - unsigned int mcrbase = 0x50 + 4 * ap->port_no; if (!pci_test_config_bits(pdev, &hpt37x_enable_bits[ap->port_no])) return -ENOENT; - /* Do the extra channel work */ - pci_read_config_word(pdev, mcrbase + 2, &mcr3); - /* Set bit 15 of 0x52 to enable TCBLID as input - */ - pci_write_config_word(pdev, mcrbase + 2, mcr3 | 0x8000); - pci_read_config_byte(pdev, 0x5A, &ata66); - /* Reset TCBLID/FCBLID to output */ - pci_write_config_word(pdev, mcrbase + 2, mcr3); - - if (ata66 & (2 >> ap->port_no)) - ap->cbl = ATA_CBL_PATA40; - else - ap->cbl = ATA_CBL_PATA80; - /* Reset the state machine */ pci_write_config_byte(pdev, 0x50 + 4 * ap->port_no, 0x37); udelay(100); @@ -584,6 +607,7 @@ static struct ata_port_operations hpt370_port_ops = { .bmdma_stop = hpt370_bmdma_stop, .mode_filter = hpt370_filter, + .cable_detect = hpt37x_cable_detect, .set_piomode = hpt370_set_piomode, .set_dmamode = hpt370_set_dmamode, .prereset = hpt37x_pre_reset, @@ -608,6 +632,7 @@ static struct ata_port_operations hpt372_port_ops = { .bmdma_stop = hpt37x_bmdma_stop, + .cable_detect = hpt37x_cable_detect, .set_piomode = hpt372_set_piomode, .set_dmamode = hpt372_set_dmamode, .prereset = hpt37x_pre_reset, @@ -620,6 +645,7 @@ static struct ata_port_operations hpt372_port_ops = { static struct ata_port_operations hpt374_fn1_port_ops = { .inherits = &hpt372_port_ops, + .cable_detect = hpt374_fn1_cable_detect, .prereset = hpt374_fn1_pre_reset, }; |