summaryrefslogtreecommitdiff
path: root/drivers/ata/pata_cmd64x.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/ata/pata_cmd64x.c')
-rw-r--r--drivers/ata/pata_cmd64x.c88
1 files changed, 44 insertions, 44 deletions
diff --git a/drivers/ata/pata_cmd64x.c b/drivers/ata/pata_cmd64x.c
index 03284611a727..abf1bb7bd322 100644
--- a/drivers/ata/pata_cmd64x.c
+++ b/drivers/ata/pata_cmd64x.c
@@ -20,7 +20,7 @@
* TODO
* Testing work
*/
-
+
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pci.h>
@@ -36,7 +36,7 @@
/*
* CMD64x specific registers definition.
*/
-
+
enum {
CFR = 0x50,
CFR_INTR_CH0 = 0x02,
@@ -90,9 +90,9 @@ static int cmd648_pre_reset(struct ata_port *ap)
pci_read_config_byte(pdev, BMIDECSR, &r);
if (r & (1 << ap->port_no))
ap->cbl = ATA_CBL_PATA80;
- else
+ else
ap->cbl = ATA_CBL_PATA40;
-
+
return ata_std_prereset(ap);
}
@@ -113,18 +113,18 @@ static void cmd648_error_handler(struct ata_port *ap)
*
* Called to do the PIO mode setup.
*/
-
+
static void cmd64x_set_piomode(struct ata_port *ap, struct ata_device *adev)
{
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
struct ata_timing t;
const unsigned long T = 1000000 / 33;
const u8 setup_data[] = { 0x40, 0x40, 0x40, 0x80, 0x00 };
-
+
u8 reg;
-
+
/* Port layout is not logical so use a table */
- const u8 arttim_port[2][2] = {
+ const u8 arttim_port[2][2] = {
{ ARTTIM0, ARTTIM1 },
{ ARTTIM23, ARTTIM23 }
};
@@ -132,11 +132,11 @@ static void cmd64x_set_piomode(struct ata_port *ap, struct ata_device *adev)
{ DRWTIM0, DRWTIM1 },
{ DRWTIM2, DRWTIM3 }
};
-
+
int arttim = arttim_port[ap->port_no][adev->devno];
int drwtim = drwtim_port[ap->port_no][adev->devno];
-
-
+
+
if (ata_timing_compute(adev, adev->pio_mode, &t, T, 0) < 0) {
printk(KERN_ERR DRV_NAME ": mode computation failed.\n");
return;
@@ -144,14 +144,14 @@ static void cmd64x_set_piomode(struct ata_port *ap, struct ata_device *adev)
if (ap->port_no) {
/* Slave has shared address setup */
struct ata_device *pair = ata_dev_pair(adev);
-
+
if (pair) {
struct ata_timing tp;
ata_timing_compute(pair, pair->pio_mode, &tp, T, 0);
ata_timing_merge(&t, &tp, &t, ATA_TIMING_SETUP);
}
}
-
+
printk(KERN_DEBUG DRV_NAME ": active %d recovery %d setup %d.\n",
t.active, t.recover, t.setup);
if (t.recover > 16) {
@@ -160,30 +160,30 @@ static void cmd64x_set_piomode(struct ata_port *ap, struct ata_device *adev)
}
if (t.active > 16)
t.active = 16;
-
+
/* Now convert the clocks into values we can actually stuff into
the chip */
-
+
if (t.recover > 1)
t.recover--;
else
t.recover = 15;
-
+
if (t.setup > 4)
t.setup = 0xC0;
else
t.setup = setup_data[t.setup];
-
+
t.active &= 0x0F; /* 0 = 16 */
-
+
/* Load setup timing */
pci_read_config_byte(pdev, arttim, &reg);
reg &= 0x3F;
reg |= t.setup;
pci_write_config_byte(pdev, arttim, reg);
-
+
/* Load active/recovery */
- pci_write_config_byte(pdev, drwtim, (t.active << 4) | t.recover);
+ pci_write_config_byte(pdev, drwtim, (t.active << 4) | t.recover);
}
/**
@@ -193,29 +193,29 @@ static void cmd64x_set_piomode(struct ata_port *ap, struct ata_device *adev)
*
* Called to do the DMA mode setup.
*/
-
+
static void cmd64x_set_dmamode(struct ata_port *ap, struct ata_device *adev)
{
static const u8 udma_data[] = {
0x31, 0x21, 0x11, 0x25, 0x15, 0x05
};
- static const u8 mwdma_data[] = {
+ static const u8 mwdma_data[] = {
0x30, 0x20, 0x10
};
-
+
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
u8 regU, regD;
int pciU = UDIDETCR0 + 8 * ap->port_no;
int pciD = BMIDESR0 + 8 * ap->port_no;
int shift = 2 * adev->devno;
-
+
pci_read_config_byte(pdev, pciD, &regD);
pci_read_config_byte(pdev, pciU, &regU);
regD &= ~(0x20 << shift);
regU &= ~(0x35 << shift);
-
+
if (adev->dma_mode >= XFER_UDMA_0)
regU |= udma_data[adev->dma_mode - XFER_UDMA_0] << shift;
else
@@ -241,13 +241,13 @@ static void cmd648_bmdma_stop(struct ata_queued_cmd *qc)
u8 dma_intr;
int dma_reg = ap->port_no ? ARTTIM23_INTR_CH1 : CFR_INTR_CH0;
int dma_mask = ap->port_no ? ARTTIM2 : CFR;
-
+
ata_bmdma_stop(qc);
-
+
pci_read_config_byte(pdev, dma_reg, &dma_intr);
pci_write_config_byte(pdev, dma_reg, dma_intr | dma_mask);
}
-
+
/**
* cmd646r1_dma_stop - DMA stop callback
* @qc: Command in progress
@@ -259,7 +259,7 @@ static void cmd646r1_bmdma_stop(struct ata_queued_cmd *qc)
{
ata_bmdma_stop(qc);
}
-
+
static struct scsi_host_template cmd64x_sht = {
.module = THIS_MODULE,
.name = DRV_NAME,
@@ -306,11 +306,11 @@ static struct ata_port_operations cmd64x_port_ops = {
.irq_handler = ata_interrupt,
.irq_clear = ata_bmdma_irq_clear,
-
+
.port_start = ata_port_start,
.port_stop = ata_port_stop,
.host_stop = ata_host_stop
-};
+};
static struct ata_port_operations cmd646r1_port_ops = {
.port_disable = ata_port_disable,
@@ -340,11 +340,11 @@ static struct ata_port_operations cmd646r1_port_ops = {
.irq_handler = ata_interrupt,
.irq_clear = ata_bmdma_irq_clear,
-
+
.port_start = ata_port_start,
.port_stop = ata_port_stop,
.host_stop = ata_host_stop
-};
+};
static struct ata_port_operations cmd648_port_ops = {
.port_disable = ata_port_disable,
@@ -374,16 +374,16 @@ static struct ata_port_operations cmd648_port_ops = {
.irq_handler = ata_interrupt,
.irq_clear = ata_bmdma_irq_clear,
-
+
.port_start = ata_port_start,
.port_stop = ata_port_stop,
.host_stop = ata_host_stop
-};
-
+};
+
static int cmd64x_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
{
u32 class_rev;
-
+
static struct ata_port_info cmd_info[6] = {
{ /* CMD 643 - no UDMA */
.sht = &cmd64x_sht,
@@ -433,15 +433,15 @@ static int cmd64x_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
};
static struct ata_port_info *port_info[2], *info;
u8 mrdmode;
-
+
info = &cmd_info[id->driver_data];
-
+
pci_read_config_dword(pdev, PCI_CLASS_REVISION, &class_rev);
class_rev &= 0xFF;
-
+
if (id->driver_data == 0) /* 643 */
ata_pci_clear_simplex(pdev);
-
+
if (pdev->device == PCI_DEVICE_ID_CMD_646) {
/* Does UDMA work ? */
if (class_rev > 4)
@@ -456,14 +456,14 @@ static int cmd64x_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
mrdmode &= ~ 0x30; /* IRQ set up */
mrdmode |= 0x02; /* Memory read line enable */
pci_write_config_byte(pdev, MRDMODE, mrdmode);
-
+
/* Force PIO 0 here.. */
-
+
/* PPC specific fixup copied from old driver */
#ifdef CONFIG_PPC
pci_write_config_byte(pdev, UDIDETCR0, 0xF0);
#endif
-
+
port_info[0] = port_info[1] = info;
return ata_pci_init_one(pdev, port_info, 2);
}
generated by cgit v1.2.3 (git 2.0.4) at 2024-11-02 20:18:34 +0000