Commit 5b4d1cf0 authored by Jens Axboe's avatar Jens Axboe

it8172 update

parent 537f3ead
...@@ -42,53 +42,17 @@ ...@@ -42,53 +42,17 @@
#include <asm/it8172/it8172_int.h> #include <asm/it8172/it8172_int.h>
#include "ide_modes.h" #include "ide_modes.h"
#include "it8172.h"
/* /*
* Prototypes * Prototypes
*/ */
static byte it8172_ratemask (ide_drive_t *drive); static u8 it8172_ratemask (ide_drive_t *drive)
static byte it8172_ratefilter (ide_drive_t *drive, byte speed);
static void it8172_tune_drive (ide_drive_t *drive, byte pio);
static byte it8172_dma_2_pio (byte xfer_rate);
static int it8172_tune_chipset (ide_drive_t *drive, byte xferspeed);
#ifdef CONFIG_BLK_DEV_IDEDMA
static int it8172_config_chipset_for_dma (ide_drive_t *drive);
static int it8172_dmaproc(ide_dma_action_t func, ide_drive_t *drive);
#endif
unsigned int __init pci_init_it8172 (struct pci_dev *dev, const char *name);
void __init ide_init_it8172 (ide_hwif_t *hwif);
static byte it8172_ratemask (ide_drive_t *drive)
{
byte mode = 0x00;
#if 1
mode |= 0x01;
#endif
return (mode &= ~0xF8);
}
static byte it8172_ratefilter (ide_drive_t *drive, byte speed)
{ {
#ifdef CONFIG_BLK_DEV_IDEDMA return 1;
byte mode = it8172_ratemask(drive);
switch(mode) {
case 0x04: // while (speed > XFER_UDMA_6) speed--; break;
case 0x03: // while (speed > XFER_UDMA_5) speed--; break;
case 0x02: while (speed > XFER_UDMA_4) speed--; break;
case 0x01: while (speed > XFER_UDMA_2) speed--; break;
case 0x00:
default: while (speed > XFER_MW_DMA_2) speed--; break;
break;
}
#else
while (speed > XFER_PIO_4) speed--;
#endif /* CONFIG_BLK_DEV_IDEDMA */
// printk("%s: mode == %02x speed == %02x\n", drive->name, mode, speed);
return speed;
} }
static void it8172_tune_drive (ide_drive_t *drive, byte pio) static void it8172_tune_drive (ide_drive_t *drive, u8 pio)
{ {
ide_hwif_t *hwif = HWIF(drive); ide_hwif_t *hwif = HWIF(drive);
struct pci_dev *dev = hwif->pci_dev; struct pci_dev *dev = hwif->pci_dev;
...@@ -133,7 +97,7 @@ static void it8172_tune_drive (ide_drive_t *drive, byte pio) ...@@ -133,7 +97,7 @@ static void it8172_tune_drive (ide_drive_t *drive, byte pio)
spin_unlock_irqrestore(&ide_lock, flags) spin_unlock_irqrestore(&ide_lock, flags)
} }
static byte it8172_dma_2_pio (byte xfer_rate) static u8 it8172_dma_2_pio (u8 xfer_rate)
{ {
switch(xfer_rate) { switch(xfer_rate) {
case XFER_UDMA_5: case XFER_UDMA_5:
...@@ -162,15 +126,15 @@ static byte it8172_dma_2_pio (byte xfer_rate) ...@@ -162,15 +126,15 @@ static byte it8172_dma_2_pio (byte xfer_rate)
} }
} }
static int it8172_tune_chipset (ide_drive_t *drive, byte xferspeed) static int it8172_tune_chipset (ide_drive_t *drive, u8 xferspeed)
{ {
ide_hwif_t *hwif = HWIF(drive); ide_hwif_t *hwif = HWIF(drive);
struct pci_dev *dev = hwif->pci_dev; struct pci_dev *dev = hwif->pci_dev;
byte speed = it8172_ratefilter(drive, xferspeed); u8 speed = ide_rate_filter(it8172_ratemask(drive), xferspeed);
int a_speed = 3 << (drive->dn * 4); int a_speed = 3 << (drive->dn * 4);
int u_flag = 1 << drive->dn; int u_flag = 1 << drive->dn;
int u_speed = 0; int u_speed = 0;
byte reg48, reg4a; u8 reg48, reg4a;
pci_read_config_byte(dev, 0x48, &reg48); pci_read_config_byte(dev, 0x48, &reg48);
pci_read_config_byte(dev, 0x4a, &reg4a); pci_read_config_byte(dev, 0x4a, &reg4a);
...@@ -221,116 +185,62 @@ static int it8172_tune_chipset (ide_drive_t *drive, byte xferspeed) ...@@ -221,116 +185,62 @@ static int it8172_tune_chipset (ide_drive_t *drive, byte xferspeed)
#ifdef CONFIG_BLK_DEV_IDEDMA #ifdef CONFIG_BLK_DEV_IDEDMA
static int it8172_config_chipset_for_dma (ide_drive_t *drive) static int it8172_config_chipset_for_dma (ide_drive_t *drive)
{ {
struct hd_driveid *id = drive->id; u8 speed = ide_dma_speed(drive, it8172_ratemask(drive));
byte mode = it8172_ratemask(drive);
byte speed, tspeed, dma = 1; if (!(speed)) {
u8 tspeed = ide_get_best_pio_mode(drive, 255, 4, NULL);
switch(mode) {
case 0x01:
if (id->dma_ultra & 0x0040)
{ speed = XFER_UDMA_2; break; }
if (id->dma_ultra & 0x0020)
{ speed = XFER_UDMA_2; break; }
if (id->dma_ultra & 0x0010)
{ speed = XFER_UDMA_2; break; }
if (id->dma_ultra & 0x0008)
{ speed = XFER_UDMA_2; break; }
if (id->dma_ultra & 0x0004)
{ speed = XFER_UDMA_2; break; }
if (id->dma_ultra & 0x0002)
{ speed = XFER_UDMA_1; break; }
if (id->dma_ultra & 0x0001)
{ speed = XFER_UDMA_0; break; }
case 0x00:
if (id->dma_mword & 0x0004)
{ speed = XFER_MW_DMA_2; break; }
if (id->dma_mword & 0x0002)
{ speed = XFER_MW_DMA_1; break; }
if (id->dma_1word & 0x0004)
{ speed = XFER_SW_DMA_2; break; }
default:
tspeed = ide_get_best_pio_mode(drive, 255, 4, NULL);
speed = it8172_dma_2_pio(XFER_PIO_0 + tspeed); speed = it8172_dma_2_pio(XFER_PIO_0 + tspeed);
dma = 0;
break;
} }
(void) it8172_tune_chipset(drive, speed); (void) it8172_tune_chipset(drive, speed);
return ide_dma_enable(drive);
// return ((int)(dma) ? ide_dma_on : ide_dma_off_quietly);
return ((int)((id->dma_ultra >> 11) & 7) ? ide_dma_on :
((id->dma_ultra >> 8) & 7) ? ide_dma_on :
((id->dma_mword >> 8) & 7) ? ide_dma_on :
((id->dma_1word >> 8) & 7) ? ide_dma_on :
ide_dma_off_quietly);
} }
static int config_drive_xfer_rate (ide_drive_t *drive) static int it8172_config_drive_xfer_rate (ide_drive_t *drive)
{ {
ide_hwif_t *hwif = HWIF(drive);
struct hd_driveid *id = drive->id; struct hd_driveid *id = drive->id;
ide_dma_action_t dma_func = ide_dma_on;
drive->init_speed = 0; drive->init_speed = 0;
if (id && (id->capability & 1) && HWIF(drive)->autodma) { if (id && (id->capability & 1) && drive->autodma) {
/* Consult the list of known "bad" drives */ /* Consult the list of known "bad" drives */
if (ide_dmaproc(ide_dma_bad_drive, drive)) { if (hwif->ide_dma_bad_drive(drive))
dma_func = ide_dma_off;
goto fast_ata_pio; goto fast_ata_pio;
}
dma_func = ide_dma_off_quietly;
if (id->field_valid & 4) { if (id->field_valid & 4) {
if (id->dma_ultra & 0x007F) { if (id->dma_ultra & hwif->ultra_mask) {
/* Force if Capable UltraDMA */ /* Force if Capable UltraDMA */
dma_func = it8172_config_chipset_for_dma(drive); int dma = it8172_config_chipset_for_dma(drive);
if ((id->field_valid & 2) && if ((id->field_valid & 2) && !dma)
(dma_func != ide_dma_on))
goto try_dma_modes; goto try_dma_modes;
} }
} else if (id->field_valid & 2) { } else if (id->field_valid & 2) {
try_dma_modes: try_dma_modes:
if ((id->dma_mword & 0x0007) || if ((id->dma_mword & hwif->mwdma_mask) ||
(id->dma_1word & 0x007)) { (id->dma_1word & hwif->swdma_mask)) {
/* Force if Capable regular DMA modes */ /* Force if Capable regular DMA modes */
dma_func = it8172_config_chipset_for_dma(drive); if (!it8172_config_chipset_for_dma(drive))
if (dma_func != ide_dma_on)
goto no_dma_set;
}
} else if (ide_dmaproc(ide_dma_good_drive, drive)) {
if (id->eide_dma_time > 150) {
goto no_dma_set; goto no_dma_set;
} }
} else if (hwif->ide_dma_good_drive(drive) &&
(id->eide_dma_time < 150)) {
/* Consult the list of known "good" drives */ /* Consult the list of known "good" drives */
dma_func = it8172_config_chipset_for_dma(drive); if (!it8172_config_chipset_for_dma(drive))
if (dma_func != ide_dma_on)
goto no_dma_set; goto no_dma_set;
} else { } else {
goto fast_ata_pio; goto fast_ata_pio;
} }
} else if ((id->capability & 8) || (id->field_valid & 2)) { } else if ((id->capability & 8) || (id->field_valid & 2)) {
fast_ata_pio: fast_ata_pio:
dma_func = ide_dma_off_quietly;
no_dma_set: no_dma_set:
it8172_tune_drive(drive, 5); it8172_tune_drive(drive, 5);
return hwif->ide_dma_off_quietly(drive);
} }
return HWIF(drive)->dmaproc(dma_func, drive); return hwif->ide_dma_on(drive);
}
static int it8172_dmaproc(ide_dma_action_t func, ide_drive_t *drive)
{
switch (func) {
case ide_dma_check:
return config_drive_xfer_rate(drive);
default :
break;
}
/* Other cases are done by generic IDE-DMA code. */
return ide_dmaproc(func, drive);
} }
#endif /* CONFIG_BLK_DEV_IDEDMA */ #endif /* CONFIG_BLK_DEV_IDEDMA */
static unsigned int __init init_chipset_it8172 (struct pci_dev *dev, const char *name)
unsigned int __init pci_init_it8172 (struct pci_dev *dev, const char *name)
{ {
unsigned char progif; unsigned char progif;
...@@ -344,7 +254,7 @@ unsigned int __init pci_init_it8172 (struct pci_dev *dev, const char *name) ...@@ -344,7 +254,7 @@ unsigned int __init pci_init_it8172 (struct pci_dev *dev, const char *name)
} }
void __init ide_init_it8172 (ide_hwif_t *hwif) static void __init init_hwif_it8172 (ide_hwif_t *hwif)
{ {
struct pci_dev* dev = hwif->pci_dev; struct pci_dev* dev = hwif->pci_dev;
unsigned long cmdBase, ctrlBase; unsigned long cmdBase, ctrlBase;
...@@ -352,8 +262,6 @@ void __init ide_init_it8172 (ide_hwif_t *hwif) ...@@ -352,8 +262,6 @@ void __init ide_init_it8172 (ide_hwif_t *hwif)
hwif->autodma = 0; hwif->autodma = 0;
hwif->tuneproc = &it8172_tune_drive; hwif->tuneproc = &it8172_tune_drive;
hwif->speedproc = &it8172_tune_chipset; hwif->speedproc = &it8172_tune_chipset;
hwif->drives[0].autotune = 1;
hwif->drives[1].autotune = 1;
cmdBase = dev->resource[0].start; cmdBase = dev->resource[0].start;
ctrlBase = dev->resource[1].start; ctrlBase = dev->resource[1].start;
...@@ -362,28 +270,56 @@ void __init ide_init_it8172 (ide_hwif_t *hwif) ...@@ -362,28 +270,56 @@ void __init ide_init_it8172 (ide_hwif_t *hwif)
memcpy(hwif->io_ports, hwif->hw.io_ports, sizeof(hwif->io_ports)); memcpy(hwif->io_ports, hwif->hw.io_ports, sizeof(hwif->io_ports));
hwif->noprobe = 0; hwif->noprobe = 0;
if (!hwif->dma_base) if (!hwif->dma_base) {
hwif->drives[0].autotune = 1;
hwif->drives[1].autotune = 1;
return; return;
}
hwif->atapi_dma = 1;
hwif->ultra_mask = 0x07;
hwif->mwdma_mask = 0x06;
hwif->swdma_mask = 0x04;
#ifdef CONFIG_BLK_DEV_IDEDMA #ifdef CONFIG_BLK_DEV_IDEDMA
hwif->dmaproc = &it8172_dmaproc; hwif->ide_dma_check = &it8172_config_drive_xfer_rate;
# ifdef CONFIG_IDEDMA_AUTO
if (!noautodma) if (!noautodma)
hwif->autodma = 1; hwif->autodma = 1;
# endif /* CONFIG_IDEDMA_AUTO */ hwif->drives[0].autodma = hwif->autodma;
hwif->drives[1].autodma = hwif->autodma;
#endif /* !CONFIG_BLK_DEV_IDEDMA */ #endif /* !CONFIG_BLK_DEV_IDEDMA */
} }
extern void ide_setup_pci_device (struct pci_dev *dev, ide_pci_device_t *d); static void __init init_dma_it8172 (ide_hwif_t *hwif, unsigned long dmabase)
{
ide_setup_dma(hwif, dmabase, 8);
}
extern void ide_setup_pci_device(struct pci_dev *, ide_pci_device_t *);
void __init fixup_device_it8172 (struct pci_dev *dev, ide_pci_device_t *d) static void __init init_setup_it8172 (struct pci_dev *dev, ide_pci_device_t *d)
{ {
if ((!(PCI_FUNC(dev->devfn) & 1) || if ((!(PCI_FUNC(dev->devfn) & 1) ||
(!((dev->class >> 8) == PCI_CLASS_STORAGE_IDE)))) (!((dev->class >> 8) == PCI_CLASS_STORAGE_IDE))))
return; /* IT8172 is more than only a IDE controller */ return; /* IT8172 is more than only a IDE controller */
printk("%s: IDE controller on PCI bus %02x dev %02x\n",
d->name, dev->bus->number, dev->devfn);
ide_setup_pci_device(dev, d); ide_setup_pci_device(dev, d);
} }
static int __init it8172_scan_pcidev (struct pci_dev *dev)
{
ide_pci_device_t *d;
if (dev->vendor != PCI_VENDOR_ID_ITE)
return 0;
for (d = it8172_chipsets; d && d->vendor && d->device; ++d) {
if (((d->vendor == dev->vendor) &&
(d->device == dev->device)) &&
(d->init_setup)) {
d->init_setup(dev, d);
return 1;
}
}
return 0;
}
#ifndef ITE8172G_H
#define ITE8172G_H
#include <linux/config.h>
#include <linux/pci.h>
#include <linux/ide.h>
static u8 it8172_ratemask(ide_drive_t *drive);
static u8 it8172_ratefilter(ide_drive_t *drive, u8 speed);
static void it8172_tune_drive(ide_drive_t *drive, u8 pio);
static u8 it8172_dma_2_pio(u8 xfer_rate);
static int it8172_tune_chipset(ide_drive_t *drive, u8 xferspeed);
#ifdef CONFIG_BLK_DEV_IDEDMA
static int it8172_config_chipset_for_dma(ide_drive_t *drive);
#endif
static void init_setup_it8172(struct pci_dev *, ide_pci_device_t *);
static unsigned int init_chipset_it8172(struct pci_dev *, const char *);
static void init_hwif_it8172(ide_hwif_t *);
static void init_dma_it8172(ide_hwif_t *, unsigned long);
static ide_pci_device_t it8172_chipsets[] __initdata = {
{
vendor: PCI_VENDOR_ID_ITE,
device: PCI_DEVICE_ID_ITE_IT8172G,
name: "IT8172G",
init_setup: init_setup_it8172,
init_chipset: init_chipset_it8172,
init_iops: NULL,
init_hwif: init_hwif_it8172,
init_dma: init_dma_it8172,
channels: 2,
autodma: AUTODMA,
enablebits: {{0x00,0x00,0x00}, {0x40,0x00,0x01}},
bootable: ON_BOARD,
extra: 0,
},{
vendor: 0,
device: 0,
channels: 0,
bootable: EOL,
}
};
#endif /* ITE8172G_H */
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