/*
- * linux/drivers/ide/pci/slc90e66.c Version 0.16 Jul 14, 2007
- *
* Copyright (C) 2000-2002 Andre Hedrick <andre@linux-ide.org>
* Copyright (C) 2006-2007 MontaVista Software, Inc. <source@mvista.com>
*
#include <linux/types.h>
#include <linux/module.h>
#include <linux/kernel.h>
-#include <linux/ioport.h>
#include <linux/pci.h>
#include <linux/hdreg.h>
#include <linux/ide.h>
-#include <linux/delay.h>
#include <linux/init.h>
-#include <asm/io.h>
-
-static u8 slc90e66_dma_2_pio (u8 xfer_rate) {
- switch(xfer_rate) {
- case XFER_UDMA_4:
- case XFER_UDMA_3:
- case XFER_UDMA_2:
- case XFER_UDMA_1:
- case XFER_UDMA_0:
- case XFER_MW_DMA_2:
- return 4;
- case XFER_MW_DMA_1:
- return 3;
- case XFER_SW_DMA_2:
- return 2;
- case XFER_MW_DMA_0:
- case XFER_SW_DMA_1:
- case XFER_SW_DMA_0:
- default:
- return 0;
- }
-}
+#define DRV_NAME "slc90e66"
+
+static DEFINE_SPINLOCK(slc90e66_lock);
-static void slc90e66_tune_pio (ide_drive_t *drive, u8 pio)
+static void slc90e66_set_pio_mode(ide_drive_t *drive, const u8 pio)
{
ide_hwif_t *hwif = HWIF(drive);
- struct pci_dev *dev = hwif->pci_dev;
+ struct pci_dev *dev = to_pci_dev(hwif->dev);
int is_slave = drive->dn & 1;
int master_port = hwif->channel ? 0x42 : 0x40;
int slave_port = 0x44;
unsigned long flags;
u16 master_data;
u8 slave_data;
- int control = 0;
+ int control = 0;
/* ISP RTC */
- static const u8 timings[][2]= {
+ static const u8 timings[][2] = {
{ 0, 0 },
{ 0, 0 },
{ 1, 0 },
{ 2, 1 },
{ 2, 3 }, };
- spin_lock_irqsave(&ide_lock, flags);
+ spin_lock_irqsave(&slc90e66_lock, flags);
pci_read_config_word(dev, master_port, &master_data);
if (pio > 1)
pci_write_config_word(dev, master_port, master_data);
if (is_slave)
pci_write_config_byte(dev, slave_port, slave_data);
- spin_unlock_irqrestore(&ide_lock, flags);
-}
-
-static void slc90e66_set_pio_mode(ide_drive_t *drive, const u8 pio)
-{
- slc90e66_tune_pio(drive, pio);
- (void) ide_config_drive_speed(drive, XFER_PIO_0 + pio);
+ spin_unlock_irqrestore(&slc90e66_lock, flags);
}
-static int slc90e66_tune_chipset(ide_drive_t *drive, const u8 speed)
+static void slc90e66_set_dma_mode(ide_drive_t *drive, const u8 speed)
{
ide_hwif_t *hwif = HWIF(drive);
- struct pci_dev *dev = hwif->pci_dev;
+ struct pci_dev *dev = to_pci_dev(hwif->dev);
u8 maslave = hwif->channel ? 0x42 : 0x40;
int sitre = 0, a_speed = 7 << (drive->dn * 4);
int u_speed = 0, u_flag = 1 << drive->dn;
pci_read_config_word(dev, 0x48, ®48);
pci_read_config_word(dev, 0x4a, ®4a);
- switch(speed) {
- case XFER_UDMA_4: u_speed = 4 << (drive->dn * 4); break;
- case XFER_UDMA_3: u_speed = 3 << (drive->dn * 4); break;
- case XFER_UDMA_2: u_speed = 2 << (drive->dn * 4); break;
- case XFER_UDMA_1: u_speed = 1 << (drive->dn * 4); break;
- case XFER_UDMA_0: u_speed = 0 << (drive->dn * 4); break;
- case XFER_MW_DMA_2:
- case XFER_MW_DMA_1:
- case XFER_SW_DMA_2: break;
- default: return -1;
- }
-
if (speed >= XFER_UDMA_0) {
+ u_speed = (speed - XFER_UDMA_0) << (drive->dn * 4);
+
if (!(reg48 & u_flag))
pci_write_config_word(dev, 0x48, reg48|u_flag);
/* FIXME: (reg4a & a_speed) ? */
pci_write_config_word(dev, 0x4a, reg4a|u_speed);
}
} else {
+ const u8 mwdma_to_pio[] = { 0, 3, 4 };
+ u8 pio;
+
if (reg48 & u_flag)
pci_write_config_word(dev, 0x48, reg48 & ~u_flag);
if (reg4a & a_speed)
pci_write_config_word(dev, 0x4a, reg4a & ~a_speed);
- }
- slc90e66_tune_pio(drive, slc90e66_dma_2_pio(speed));
+ if (speed >= XFER_MW_DMA_0)
+ pio = mwdma_to_pio[speed - XFER_MW_DMA_0];
+ else
+ pio = 2; /* only SWDMA2 is allowed */
- return ide_config_drive_speed(drive, speed);
+ slc90e66_set_pio_mode(drive, pio);
+ }
}
-static int slc90e66_config_drive_xfer_rate (ide_drive_t *drive)
+static u8 slc90e66_cable_detect(ide_hwif_t *hwif)
{
- drive->init_speed = 0;
-
- if (ide_tune_dma(drive))
- return 0;
+ struct pci_dev *dev = to_pci_dev(hwif->dev);
+ u8 reg47 = 0, mask = hwif->channel ? 0x01 : 0x02;
- if (ide_use_fast_pio(drive))
- ide_set_max_pio(drive);
+ pci_read_config_byte(dev, 0x47, ®47);
- return -1;
+ /* bit[0(1)]: 0:80, 1:40 */
+ return (reg47 & mask) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
}
-static void __devinit init_hwif_slc90e66 (ide_hwif_t *hwif)
-{
- u8 reg47 = 0;
- u8 mask = hwif->channel ? 0x01 : 0x02; /* bit0:Primary */
-
- hwif->autodma = 0;
-
- if (!hwif->irq)
- hwif->irq = hwif->channel ? 15 : 14;
-
- hwif->speedproc = &slc90e66_tune_chipset;
- hwif->set_pio_mode = &slc90e66_set_pio_mode;
-
- pci_read_config_byte(hwif->pci_dev, 0x47, ®47);
-
- if (!hwif->dma_base) {
- hwif->drives[0].autotune = 1;
- hwif->drives[1].autotune = 1;
- return;
- }
-
- hwif->atapi_dma = 1;
- hwif->ultra_mask = 0x1f;
- hwif->mwdma_mask = 0x06;
- hwif->swdma_mask = 0x04;
-
- if (hwif->cbl != ATA_CBL_PATA40_SHORT)
- /* bit[0(1)]: 0:80, 1:40 */
- hwif->cbl = (reg47 & mask) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
-
- hwif->ide_dma_check = &slc90e66_config_drive_xfer_rate;
-
- if (!noautodma)
- hwif->autodma = 1;
- hwif->drives[0].autodma = hwif->autodma;
- hwif->drives[1].autodma = hwif->autodma;
-}
+static const struct ide_port_ops slc90e66_port_ops = {
+ .set_pio_mode = slc90e66_set_pio_mode,
+ .set_dma_mode = slc90e66_set_dma_mode,
+ .cable_detect = slc90e66_cable_detect,
+};
-static ide_pci_device_t slc90e66_chipset __devinitdata = {
- .name = "SLC90E66",
- .init_hwif = init_hwif_slc90e66,
- .autodma = AUTODMA,
- .enablebits = {{0x41,0x80,0x80}, {0x43,0x80,0x80}},
- .bootable = ON_BOARD,
+static const struct ide_port_info slc90e66_chipset __devinitdata = {
+ .name = DRV_NAME,
+ .enablebits = { {0x41, 0x80, 0x80}, {0x43, 0x80, 0x80} },
+ .port_ops = &slc90e66_port_ops,
+ .host_flags = IDE_HFLAG_LEGACY_IRQS,
.pio_mask = ATA_PIO4,
+ .swdma_mask = ATA_SWDMA2_ONLY,
+ .mwdma_mask = ATA_MWDMA12_ONLY,
+ .udma_mask = ATA_UDMA4,
};
static int __devinit slc90e66_init_one(struct pci_dev *dev, const struct pci_device_id *id)
{
- return ide_setup_pci_device(dev, &slc90e66_chipset);
+ return ide_pci_init_one(dev, &slc90e66_chipset, NULL);
}
-static struct pci_device_id slc90e66_pci_tbl[] = {
- { PCI_DEVICE(PCI_VENDOR_ID_EFAR, PCI_DEVICE_ID_EFAR_SLC90E66_1), 0},
+static const struct pci_device_id slc90e66_pci_tbl[] = {
+ { PCI_VDEVICE(EFAR, PCI_DEVICE_ID_EFAR_SLC90E66_1), 0 },
{ 0, },
};
MODULE_DEVICE_TABLE(pci, slc90e66_pci_tbl);
.name = "SLC90e66_IDE",
.id_table = slc90e66_pci_tbl,
.probe = slc90e66_init_one,
+ .remove = ide_pci_remove,
};
static int __init slc90e66_ide_init(void)
return ide_pci_register_driver(&driver);
}
+static void __exit slc90e66_ide_exit(void)
+{
+ pci_unregister_driver(&driver);
+}
+
module_init(slc90e66_ide_init);
+module_exit(slc90e66_ide_exit);
MODULE_AUTHOR("Andre Hedrick");
MODULE_DESCRIPTION("PCI driver module for SLC90E66 IDE");
projects / linux-2.6 / blobdiff