hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

pata_atiixp: support ->cable_detect 

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Alan Cox 2007-03-08 19:27:31 +00:00 committed by Jeff Garzik
parent d36a76482c
commit 847086069c
1 changed files with 16 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
drivers/ata/pata_atiixp.c
View File

@ -22,7 +22,7 @@
#include <linux/libata.h>
#define DRV_NAME "pata_atiixp"
#define DRV_VERSION "0.4.4"
#define DRV_VERSION "0.4.5"
enum {
ATIIXP_IDE_PIO_TIMING = 0x40,
@ -35,23 +35,15 @@ enum {
static int atiixp_pre_reset(struct ata_port *ap)
{
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
static const struct pci_bits atiixp_enable_bits[] = {
{ 0x48, 1, 0x01, 0x00 },
{ 0x48, 1, 0x08, 0x00 }
};
u8 udma;
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
if (!pci_test_config_bits(pdev, &atiixp_enable_bits[ap->port_no]))
return -ENOENT;
/* Hack from drivers/ide/pci. Really we want to know how to do the
raw detection not play follow the bios mode guess */
pci_read_config_byte(pdev, ATIIXP_IDE_UDMA_MODE + ap->port_no, &udma);
if ((udma & 0x07) >= 0x04 || (udma & 0x70) >= 0x40)
ap->cbl = ATA_CBL_PATA80;
else
ap->cbl = ATA_CBL_PATA40;
return ata_std_prereset(ap);
}
@ -60,6 +52,19 @@ static void atiixp_error_handler(struct ata_port *ap)
ata_bmdma_drive_eh(ap, atiixp_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
}
static int atiixp_cable_detect(struct ata_port *ap)
{
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
u8 udma;
/* Hack from drivers/ide/pci. Really we want to know how to do the
raw detection not play follow the bios mode guess */
pci_read_config_byte(pdev, ATIIXP_IDE_UDMA_MODE + ap->port_no, &udma);
if ((udma & 0x07) >= 0x04 || (udma & 0x70) >= 0x40)
return ATA_CBL_PATA80;
return ATA_CBL_PATA40;
}
/**
* atiixp_set_pio_timing - set initial PIO mode data
* @ap: ATA interface
@ -245,6 +250,7 @@ static struct ata_port_operations atiixp_port_ops = {
.thaw = ata_bmdma_thaw,
.error_handler = atiixp_error_handler,
.post_internal_cmd = ata_bmdma_post_internal_cmd,
.cable_detect = atiixp_cable_detect,
.bmdma_setup = ata_bmdma_setup,
.bmdma_start = atiixp_bmdma_start,