diff options
Diffstat (limited to 'drivers/ide/pci/slc90e66.c')
| -rw-r--r-- | drivers/ide/pci/slc90e66.c | 273 |
1 files changed, 0 insertions, 273 deletions
diff --git a/drivers/ide/pci/slc90e66.c b/drivers/ide/pci/slc90e66.c deleted file mode 100644 index 5112c726633..00000000000 --- a/drivers/ide/pci/slc90e66.c +++ /dev/null @@ -1,273 +0,0 @@ -/* - * linux/drivers/ide/pci/slc90e66.c Version 0.11 September 11, 2002 - * - * Copyright (C) 2000-2002 Andre Hedrick <andre@linux-ide.org> - * - * This a look-a-like variation of the ICH0 PIIX4 Ultra-66, - * but this keeps the ISA-Bridge and slots alive. - * - */ - -#include <linux/config.h> -#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_ratemask (ide_drive_t *drive) -{ - u8 mode = 2; - - if (!eighty_ninty_three(drive)) - mode = min(mode, (u8)1); - return mode; -} - -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: - case XFER_PIO_4: - return 4; - case XFER_MW_DMA_1: - case XFER_PIO_3: - return 3; - case XFER_SW_DMA_2: - case XFER_PIO_2: - return 2; - case XFER_MW_DMA_0: - case XFER_SW_DMA_1: - case XFER_SW_DMA_0: - case XFER_PIO_1: - case XFER_PIO_0: - case XFER_PIO_SLOW: - default: - return 0; - } -} - -/* - * Based on settings done by AMI BIOS - * (might be useful if drive is not registered in CMOS for any reason). - */ -static void slc90e66_tune_drive (ide_drive_t *drive, u8 pio) -{ - ide_hwif_t *hwif = HWIF(drive); - struct pci_dev *dev = hwif->pci_dev; - int is_slave = (&hwif->drives[1] == drive); - int master_port = hwif->channel ? 0x42 : 0x40; - int slave_port = 0x44; - unsigned long flags; - u16 master_data; - u8 slave_data; - /* ISP RTC */ - u8 timings[][2] = { { 0, 0 }, - { 0, 0 }, - { 1, 0 }, - { 2, 1 }, - { 2, 3 }, }; - - pio = ide_get_best_pio_mode(drive, pio, 5, NULL); - spin_lock_irqsave(&ide_lock, flags); - pci_read_config_word(dev, master_port, &master_data); - if (is_slave) { - master_data = master_data | 0x4000; - if (pio > 1) - /* enable PPE, IE and TIME */ - master_data = master_data | 0x0070; - pci_read_config_byte(dev, slave_port, &slave_data); - slave_data = slave_data & (hwif->channel ? 0x0f : 0xf0); - slave_data = slave_data | (((timings[pio][0] << 2) | timings[pio][1]) << (hwif->channel ? 4 : 0)); - } else { - master_data = master_data & 0xccf8; - if (pio > 1) - /* enable PPE, IE and TIME */ - master_data = master_data | 0x0007; - master_data = master_data | (timings[pio][0] << 12) | (timings[pio][1] << 8); - } - 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 int slc90e66_tune_chipset (ide_drive_t *drive, u8 xferspeed) -{ - ide_hwif_t *hwif = HWIF(drive); - struct pci_dev *dev = hwif->pci_dev; - u8 maslave = hwif->channel ? 0x42 : 0x40; - u8 speed = ide_rate_filter(slc90e66_ratemask(drive), xferspeed); - int sitre = 0, a_speed = 7 << (drive->dn * 4); - int u_speed = 0, u_flag = 1 << drive->dn; - u16 reg4042, reg44, reg48, reg4a; - - pci_read_config_word(dev, maslave, ®4042); - sitre = (reg4042 & 0x4000) ? 1 : 0; - pci_read_config_word(dev, 0x44, ®44); - pci_read_config_word(dev, 0x48, ®48); - pci_read_config_word(dev, 0x4a, ®4a); - - switch(speed) { -#ifdef CONFIG_BLK_DEV_IDEDMA - 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; -#endif /* CONFIG_BLK_DEV_IDEDMA */ - case XFER_PIO_4: - case XFER_PIO_3: - case XFER_PIO_2: - case XFER_PIO_0: break; - default: return -1; - } - - if (speed >= XFER_UDMA_0) { - if (!(reg48 & u_flag)) - pci_write_config_word(dev, 0x48, reg48|u_flag); - /* FIXME: (reg4a & a_speed) ? */ - if ((reg4a & u_speed) != u_speed) { - pci_write_config_word(dev, 0x4a, reg4a & ~a_speed); - pci_read_config_word(dev, 0x4a, ®4a); - pci_write_config_word(dev, 0x4a, reg4a|u_speed); - } - } else { - 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_drive(drive, slc90e66_dma_2_pio(speed)); - return (ide_config_drive_speed(drive, speed)); -} - -#ifdef CONFIG_BLK_DEV_IDEDMA -static int slc90e66_config_drive_for_dma (ide_drive_t *drive) -{ - u8 speed = ide_dma_speed(drive, slc90e66_ratemask(drive)); - - if (!(speed)) { - u8 tspeed = ide_get_best_pio_mode(drive, 255, 5, NULL); - speed = slc90e66_dma_2_pio(XFER_PIO_0 + tspeed); - } - - (void) slc90e66_tune_chipset(drive, speed); - return ide_dma_enable(drive); -} - -static int slc90e66_config_drive_xfer_rate (ide_drive_t *drive) -{ - ide_hwif_t *hwif = HWIF(drive); - struct hd_driveid *id = drive->id; - - drive->init_speed = 0; - - if (id && (id->capability & 1) && drive->autodma) { - - if (ide_use_dma(drive)) { - if (slc90e66_config_drive_for_dma(drive)) - return hwif->ide_dma_on(drive); - } - - goto fast_ata_pio; - - } else if ((id->capability & 8) || (id->field_valid & 2)) { -fast_ata_pio: - hwif->tuneproc(drive, 5); - return hwif->ide_dma_off_quietly(drive); - } - /* IORDY not supported */ - return 0; -} -#endif /* CONFIG_BLK_DEV_IDEDMA */ - -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->tuneproc = &slc90e66_tune_drive; - - 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 = 0x07; - hwif->swdma_mask = 0x07; - -#ifdef CONFIG_BLK_DEV_IDEDMA - if (!(hwif->udma_four)) - /* bit[0(1)]: 0:80, 1:40 */ - hwif->udma_four = (reg47 & mask) ? 0 : 1; - - 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; -#endif /* !CONFIG_BLK_DEV_IDEDMA */ -} - -static ide_pci_device_t slc90e66_chipset __devinitdata = { - .name = "SLC90E66", - .init_hwif = init_hwif_slc90e66, - .channels = 2, - .autodma = AUTODMA, - .enablebits = {{0x41,0x80,0x80}, {0x43,0x80,0x80}}, - .bootable = ON_BOARD, -}; - -static int __devinit slc90e66_init_one(struct pci_dev *dev, const struct pci_device_id *id) -{ - return ide_setup_pci_device(dev, &slc90e66_chipset); -} - -static struct pci_device_id slc90e66_pci_tbl[] = { - { PCI_VENDOR_ID_EFAR, PCI_DEVICE_ID_EFAR_SLC90E66_1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, - { 0, }, -}; -MODULE_DEVICE_TABLE(pci, slc90e66_pci_tbl); - -static struct pci_driver driver = { - .name = "SLC90e66_IDE", - .id_table = slc90e66_pci_tbl, - .probe = slc90e66_init_one, -}; - -static int slc90e66_ide_init(void) -{ - return ide_pci_register_driver(&driver); -} - -module_init(slc90e66_ide_init); - -MODULE_AUTHOR("Andre Hedrick"); -MODULE_DESCRIPTION("PCI driver module for SLC90E66 IDE"); -MODULE_LICENSE("GPL"); |