-
/*
- * linux/drivers/ide/pci/it821x.c Version 0.16 Jul 3 2007
- *
* Copyright (C) 2004 Red Hat <alan@redhat.com>
* Copyright (C) 2007 Bartlomiej Zolnierkiewicz
*
#include <linux/types.h>
#include <linux/module.h>
#include <linux/pci.h>
-#include <linux/delay.h>
-#include <linux/hdreg.h>
#include <linux/ide.h>
#include <linux/init.h>
-#include <asm/io.h>
+#define DRV_NAME "it821x"
struct it821x_dev
{
/*
* We allow users to force the card into non raid mode without
- * flashing the alternative BIOS. This is also neccessary right now
+ * flashing the alternative BIOS. This is also necessary right now
* for embedded platforms that cannot run a PC BIOS but are using this
* device.
*/
static void it821x_program(ide_drive_t *drive, u16 timing)
{
- ide_hwif_t *hwif = drive->hwif;
+ ide_hwif_t *hwif = drive->hwif;
+ struct pci_dev *dev = to_pci_dev(hwif->dev);
struct it821x_dev *itdev = ide_get_hwifdata(hwif);
int channel = hwif->channel;
u8 conf;
conf = timing >> 8;
else
conf = timing & 0xFF;
- pci_write_config_byte(hwif->pci_dev, 0x54 + 4 * channel, conf);
+
+ pci_write_config_byte(dev, 0x54 + 4 * channel, conf);
}
/**
static void it821x_program_udma(ide_drive_t *drive, u16 timing)
{
- ide_hwif_t *hwif = drive->hwif;
+ ide_hwif_t *hwif = drive->hwif;
+ struct pci_dev *dev = to_pci_dev(hwif->dev);
struct it821x_dev *itdev = ide_get_hwifdata(hwif);
int channel = hwif->channel;
int unit = drive->select.b.unit;
conf = timing >> 8;
else
conf = timing & 0xFF;
- if(itdev->timing10 == 0)
- pci_write_config_byte(hwif->pci_dev, 0x56 + 4 * channel + unit, conf);
+
+ if (itdev->timing10 == 0)
+ pci_write_config_byte(dev, 0x56 + 4 * channel + unit, conf);
else {
- pci_write_config_byte(hwif->pci_dev, 0x56 + 4 * channel, conf);
- pci_write_config_byte(hwif->pci_dev, 0x56 + 4 * channel + 1, conf);
+ pci_write_config_byte(dev, 0x56 + 4 * channel, conf);
+ pci_write_config_byte(dev, 0x56 + 4 * channel + 1, conf);
}
}
static void it821x_clock_strategy(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
+ struct pci_dev *dev = to_pci_dev(hwif->dev);
struct it821x_dev *itdev = ide_get_hwifdata(hwif);
u8 unit = drive->select.b.unit;
itdev->clock_mode = ATA_50;
sel = 1;
}
- pci_read_config_byte(hwif->pci_dev, 0x50, &v);
+
+ pci_read_config_byte(dev, 0x50, &v);
v &= ~(1 << (1 + hwif->channel));
v |= sel << (1 + hwif->channel);
- pci_write_config_byte(hwif->pci_dev, 0x50, v);
+ pci_write_config_byte(dev, 0x50, v);
/*
* Reprogram the UDMA/PIO of the pair drive for the switch
static void it821x_tune_mwdma (ide_drive_t *drive, byte mode_wanted)
{
- ide_hwif_t *hwif = drive->hwif;
+ ide_hwif_t *hwif = drive->hwif;
+ struct pci_dev *dev = to_pci_dev(hwif->dev);
struct it821x_dev *itdev = (void *)ide_get_hwifdata(hwif);
int unit = drive->select.b.unit;
int channel = hwif->channel;
itdev->udma[unit] = UDMA_OFF;
/* UDMA bits off - Revision 0x10 do them in pairs */
- pci_read_config_byte(hwif->pci_dev, 0x50, &conf);
- if(itdev->timing10)
+ pci_read_config_byte(dev, 0x50, &conf);
+ if (itdev->timing10)
conf |= channel ? 0x60: 0x18;
else
conf |= 1 << (3 + 2 * channel + unit);
- pci_write_config_byte(hwif->pci_dev, 0x50, conf);
+ pci_write_config_byte(dev, 0x50, conf);
it821x_clock_strategy(drive);
/* FIXME: do we need to program this ? */
static void it821x_tune_udma (ide_drive_t *drive, byte mode_wanted)
{
- ide_hwif_t *hwif = drive->hwif;
+ ide_hwif_t *hwif = drive->hwif;
+ struct pci_dev *dev = to_pci_dev(hwif->dev);
struct it821x_dev *itdev = ide_get_hwifdata(hwif);
int unit = drive->select.b.unit;
int channel = hwif->channel;
itdev->udma[unit] |= 0x8080; /* UDMA 5/6 select on */
/* UDMA on. Again revision 0x10 must do the pair */
- pci_read_config_byte(hwif->pci_dev, 0x50, &conf);
- if(itdev->timing10)
+ pci_read_config_byte(dev, 0x50, &conf);
+ if (itdev->timing10)
conf &= channel ? 0x9F: 0xE7;
else
conf &= ~ (1 << (3 + 2 * channel + unit));
- pci_write_config_byte(hwif->pci_dev, 0x50, conf);
+ pci_write_config_byte(dev, 0x50, conf);
it821x_clock_strategy(drive);
it821x_program_udma(drive, itdev->udma[unit]);
}
/**
- * ata66_it821x - check for 80 pin cable
+ * it821x_cable_detect - cable detection
* @hwif: interface to check
*
* Check for the presence of an ATA66 capable cable on the
* the needed logic onboard.
*/
-static u8 __devinit ata66_it821x(ide_hwif_t *hwif)
+static u8 it821x_cable_detect(ide_hwif_t *hwif)
{
/* The reference driver also only does disk side */
return ATA_CBL_PATA80;
}
/**
- * it821x_fixup - post init callback
- * @hwif: interface
+ * it821x_quirkproc - post init callback
+ * @drive: drive
*
- * This callback is run after the drives have been probed but
+ * This callback is run after the drive has been probed but
* before anything gets attached. It allows drivers to do any
* final tuning that is needed, or fixups to work around bugs.
*/
-static void __devinit it821x_fixups(ide_hwif_t *hwif)
+static void it821x_quirkproc(ide_drive_t *drive)
{
- struct it821x_dev *itdev = ide_get_hwifdata(hwif);
- int i;
+ struct it821x_dev *itdev = ide_get_hwifdata(drive->hwif);
+ u16 *id = drive->id;
- if(!itdev->smart) {
+ if (!itdev->smart) {
/*
* If we are in pass through mode then not much
* needs to be done, but we do bother to clear the
* IRQ mask as we may well be in PIO (eg rev 0x10)
* for now and we know unmasking is safe on this chipset.
*/
- for (i = 0; i < 2; i++) {
- ide_drive_t *drive = &hwif->drives[i];
- if(drive->present)
- drive->unmask = 1;
- }
- return;
- }
+ drive->dev_flags |= IDE_DFLAG_UNMASK;
+ } else {
/*
* Perform fixups on smart mode. We need to "lose" some
* capabilities the firmware lacks but does not filter, and
* in RAID mode.
*/
- for(i = 0; i < 2; i++) {
- ide_drive_t *drive = &hwif->drives[i];
- struct hd_driveid *id;
- u16 *idbits;
-
- if(!drive->present)
- continue;
- id = drive->id;
- idbits = (u16 *)drive->id;
-
/* Check for RAID v native */
- if(strstr(id->model, "Integrated Technology Express")) {
+ if (strstr((char *)&id[ATA_ID_PROD],
+ "Integrated Technology Express")) {
/* In raid mode the ident block is slightly buggy
We need to set the bits so that the IDE layer knows
LBA28. LBA48 and DMA ar valid */
- id->capability |= 3; /* LBA28, DMA */
- id->command_set_2 |= 0x0400; /* LBA48 valid */
- id->cfs_enable_2 |= 0x0400; /* LBA48 on */
+ id[ATA_ID_CAPABILITY] |= (3 << 8); /* LBA28, DMA */
+ id[ATA_ID_COMMAND_SET_2] |= 0x0400; /* LBA48 valid */
+ id[ATA_ID_CFS_ENABLE_2] |= 0x0400; /* LBA48 on */
/* Reporting logic */
printk(KERN_INFO "%s: IT8212 %sRAID %d volume",
- drive->name,
- idbits[147] ? "Bootable ":"",
- idbits[129]);
- if(idbits[129] != 1)
- printk("(%dK stripe)", idbits[146]);
- printk(".\n");
+ drive->name, id[147] ? "Bootable " : "",
+ id[ATA_ID_CSFO]);
+ if (id[ATA_ID_CSFO] != 1)
+ printk(KERN_CONT "(%dK stripe)", id[146]);
+ printk(KERN_CONT ".\n");
} else {
/* Non RAID volume. Fixups to stop the core code
doing unsupported things */
- id->field_valid &= 3;
- id->queue_depth = 0;
- id->command_set_1 = 0;
- id->command_set_2 &= 0xC400;
- id->cfsse &= 0xC000;
- id->cfs_enable_1 = 0;
- id->cfs_enable_2 &= 0xC400;
- id->csf_default &= 0xC000;
- id->word127 = 0;
- id->dlf = 0;
- id->csfo = 0;
- id->cfa_power = 0;
+ id[ATA_ID_FIELD_VALID] &= 3;
+ id[ATA_ID_QUEUE_DEPTH] = 0;
+ id[ATA_ID_COMMAND_SET_1] = 0;
+ id[ATA_ID_COMMAND_SET_2] &= 0xC400;
+ id[ATA_ID_CFSSE] &= 0xC000;
+ id[ATA_ID_CFS_ENABLE_1] = 0;
+ id[ATA_ID_CFS_ENABLE_2] &= 0xC400;
+ id[ATA_ID_CSF_DEFAULT] &= 0xC000;
+ id[127] = 0;
+ id[ATA_ID_DLF] = 0;
+ id[ATA_ID_CSFO] = 0;
+ id[ATA_ID_CFA_POWER] = 0;
printk(KERN_INFO "%s: Performing identify fixups.\n",
drive->name);
}
* IDE core that DMA is supported (it821x hardware
* takes care of DMA mode programming).
*/
- if (id->capability & 1) {
- id->dma_mword |= 0x0101;
+ if (ata_id_has_dma(id)) {
+ id[ATA_ID_MWDMA_MODES] |= 0x0101;
drive->current_speed = XFER_MW_DMA_0;
}
}
}
+static struct ide_dma_ops it821x_pass_through_dma_ops = {
+ .dma_host_set = ide_dma_host_set,
+ .dma_setup = ide_dma_setup,
+ .dma_exec_cmd = ide_dma_exec_cmd,
+ .dma_start = it821x_dma_start,
+ .dma_end = it821x_dma_end,
+ .dma_test_irq = ide_dma_test_irq,
+ .dma_timeout = ide_dma_timeout,
+ .dma_lost_irq = ide_dma_lost_irq,
+};
+
/**
* init_hwif_it821x - set up hwif structs
* @hwif: interface to set up
static void __devinit init_hwif_it821x(ide_hwif_t *hwif)
{
- struct it821x_dev *idev = kzalloc(sizeof(struct it821x_dev), GFP_KERNEL);
+ struct pci_dev *dev = to_pci_dev(hwif->dev);
+ struct ide_host *host = pci_get_drvdata(dev);
+ struct it821x_dev *itdevs = host->host_priv;
+ struct it821x_dev *idev = itdevs + hwif->channel;
u8 conf;
- if (idev == NULL) {
- printk(KERN_ERR "it821x: out of memory, falling back to legacy behaviour.\n");
- return;
- }
-
ide_set_hwifdata(hwif, idev);
- pci_read_config_byte(hwif->pci_dev, 0x50, &conf);
+ pci_read_config_byte(dev, 0x50, &conf);
if (conf & 1) {
idev->smart = 1;
hwif->host_flags |= IDE_HFLAG_NO_ATAPI_DMA;
/*
* Not in the docs but according to the reference driver
- * this is neccessary.
+ * this is necessary.
*/
- pci_read_config_byte(hwif->pci_dev, 0x08, &conf);
+ pci_read_config_byte(dev, 0x08, &conf);
if (conf == 0x10) {
idev->timing10 = 1;
hwif->host_flags |= IDE_HFLAG_NO_ATAPI_DMA;
if (idev->smart == 0)
- printk(KERN_WARNING "it821x: Revision 0x10, workarounds activated.\n");
+ printk(KERN_WARNING DRV_NAME " %s: revision 0x10, "
+ "workarounds activated\n", pci_name(dev));
}
if (idev->smart == 0) {
- hwif->set_pio_mode = &it821x_set_pio_mode;
- hwif->set_dma_mode = &it821x_set_dma_mode;
-
/* MWDMA/PIO clock switching for pass through mode */
- hwif->dma_start = &it821x_dma_start;
- hwif->ide_dma_end = &it821x_dma_end;
+ hwif->dma_ops = &it821x_pass_through_dma_ops;
} else
hwif->host_flags |= IDE_HFLAG_NO_SET_MODE;
- hwif->drives[0].autotune = 1;
- hwif->drives[1].autotune = 1;
-
if (hwif->dma_base == 0)
return;
- hwif->ultra_mask = 0x7f;
- hwif->mwdma_mask = 0x07;
-
- if (hwif->cbl != ATA_CBL_PATA40_SHORT)
- hwif->cbl = ata66_it821x(hwif);
+ hwif->ultra_mask = ATA_UDMA6;
+ hwif->mwdma_mask = ATA_MWDMA2;
}
-static void __devinit it8212_disable_raid(struct pci_dev *dev)
+static void it8212_disable_raid(struct pci_dev *dev)
{
/* Reset local CPU, and set BIOS not ready */
pci_write_config_byte(dev, 0x5E, 0x01);
pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x20);
}
-static unsigned int __devinit init_chipset_it821x(struct pci_dev *dev, const char *name)
+static unsigned int init_chipset_it821x(struct pci_dev *dev)
{
u8 conf;
static char *mode[2] = { "pass through", "smart" };
/* Force the card into bypass mode if so requested */
if (it8212_noraid) {
- printk(KERN_INFO "it8212: forcing bypass mode.\n");
+ printk(KERN_INFO DRV_NAME " %s: forcing bypass mode\n",
+ pci_name(dev));
it8212_disable_raid(dev);
}
pci_read_config_byte(dev, 0x50, &conf);
- printk(KERN_INFO "it821x: controller in %s mode.\n", mode[conf & 1]);
+ printk(KERN_INFO DRV_NAME " %s: controller in %s mode\n",
+ pci_name(dev), mode[conf & 1]);
return 0;
}
+static const struct ide_port_ops it821x_port_ops = {
+ /* it821x_set_{pio,dma}_mode() are only used in pass-through mode */
+ .set_pio_mode = it821x_set_pio_mode,
+ .set_dma_mode = it821x_set_dma_mode,
+ .quirkproc = it821x_quirkproc,
+ .cable_detect = it821x_cable_detect,
+};
-#define DECLARE_ITE_DEV(name_str) \
- { \
- .name = name_str, \
- .init_chipset = init_chipset_it821x, \
- .init_hwif = init_hwif_it821x, \
- .autodma = AUTODMA, \
- .bootable = ON_BOARD, \
- .fixup = it821x_fixups, \
- .pio_mask = ATA_PIO4, \
- }
-
-static ide_pci_device_t it821x_chipsets[] __devinitdata = {
- /* 0 */ DECLARE_ITE_DEV("IT8212"),
+static const struct ide_port_info it821x_chipset __devinitdata = {
+ .name = DRV_NAME,
+ .init_chipset = init_chipset_it821x,
+ .init_hwif = init_hwif_it821x,
+ .port_ops = &it821x_port_ops,
+ .pio_mask = ATA_PIO4,
};
/**
static int __devinit it821x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
{
- ide_setup_pci_device(dev, &it821x_chipsets[id->driver_data]);
- return 0;
+ struct it821x_dev *itdevs;
+ int rc;
+
+ itdevs = kzalloc(2 * sizeof(*itdevs), GFP_KERNEL);
+ if (itdevs == NULL) {
+ printk(KERN_ERR DRV_NAME " %s: out of memory\n", pci_name(dev));
+ return -ENOMEM;
+ }
+
+ rc = ide_pci_init_one(dev, &it821x_chipset, itdevs);
+ if (rc)
+ kfree(itdevs);
+
+ return rc;
+}
+
+static void __devexit it821x_remove(struct pci_dev *dev)
+{
+ struct ide_host *host = pci_get_drvdata(dev);
+ struct it821x_dev *itdevs = host->host_priv;
+
+ ide_pci_remove(dev);
+ kfree(itdevs);
}
static const struct pci_device_id it821x_pci_tbl[] = {
.name = "ITE821x IDE",
.id_table = it821x_pci_tbl,
.probe = it821x_init_one,
+ .remove = __devexit_p(it821x_remove),
+ .suspend = ide_pci_suspend,
+ .resume = ide_pci_resume,
};
static int __init it821x_ide_init(void)
return ide_pci_register_driver(&driver);
}
+static void __exit it821x_ide_exit(void)
+{
+ pci_unregister_driver(&driver);
+}
+
module_init(it821x_ide_init);
+module_exit(it821x_ide_exit);
module_param_named(noraid, it8212_noraid, int, S_IRUGO);
-MODULE_PARM_DESC(it8212_noraid, "Force card into bypass mode");
+MODULE_PARM_DESC(noraid, "Force card into bypass mode");
MODULE_AUTHOR("Alan Cox");
MODULE_DESCRIPTION("PCI driver module for the ITE 821x");
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff