Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * triflex.c |
| 3 | * |
| 4 | * IDE Chipset driver for the Compaq TriFlex IDE controller. |
| 5 | * |
| 6 | * Known to work with the Compaq Workstation 5x00 series. |
| 7 | * |
| 8 | * Copyright (C) 2002 Hewlett-Packard Development Group, L.P. |
| 9 | * Author: Torben Mathiasen <torben.mathiasen@hp.com> |
| 10 | * |
| 11 | * This program is free software; you can redistribute it and/or modify |
| 12 | * it under the terms of the GNU General Public License version 2 as |
| 13 | * published by the Free Software Foundation. |
| 14 | * |
| 15 | * This program is distributed in the hope that it will be useful, |
| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 | * GNU General Public License for more details. |
| 19 | * |
| 20 | * You should have received a copy of the GNU General Public License |
| 21 | * along with this program; if not, write to the Free Software |
| 22 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 23 | * |
| 24 | * Loosely based on the piix & svwks drivers. |
| 25 | * |
| 26 | * Documentation: |
| 27 | * Not publically available. |
| 28 | */ |
| 29 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 30 | #include <linux/types.h> |
| 31 | #include <linux/module.h> |
| 32 | #include <linux/kernel.h> |
| 33 | #include <linux/delay.h> |
| 34 | #include <linux/timer.h> |
| 35 | #include <linux/mm.h> |
| 36 | #include <linux/ioport.h> |
| 37 | #include <linux/blkdev.h> |
| 38 | #include <linux/hdreg.h> |
| 39 | #include <linux/pci.h> |
| 40 | #include <linux/ide.h> |
| 41 | #include <linux/init.h> |
| 42 | |
| 43 | static int triflex_tune_chipset(ide_drive_t *drive, u8 xferspeed) |
| 44 | { |
| 45 | ide_hwif_t *hwif = HWIF(drive); |
| 46 | struct pci_dev *dev = hwif->pci_dev; |
| 47 | u8 channel_offset = hwif->channel ? 0x74 : 0x70; |
| 48 | u16 timing = 0; |
| 49 | u32 triflex_timings = 0; |
| 50 | u8 unit = (drive->select.b.unit & 0x01); |
| 51 | u8 speed = ide_rate_filter(0, xferspeed); |
| 52 | |
| 53 | pci_read_config_dword(dev, channel_offset, &triflex_timings); |
| 54 | |
| 55 | switch(speed) { |
| 56 | case XFER_MW_DMA_2: |
| 57 | timing = 0x0103; |
| 58 | break; |
| 59 | case XFER_MW_DMA_1: |
| 60 | timing = 0x0203; |
| 61 | break; |
| 62 | case XFER_MW_DMA_0: |
| 63 | timing = 0x0808; |
| 64 | break; |
| 65 | case XFER_SW_DMA_2: |
| 66 | case XFER_SW_DMA_1: |
| 67 | case XFER_SW_DMA_0: |
| 68 | timing = 0x0f0f; |
| 69 | break; |
| 70 | case XFER_PIO_4: |
| 71 | timing = 0x0202; |
| 72 | break; |
| 73 | case XFER_PIO_3: |
| 74 | timing = 0x0204; |
| 75 | break; |
| 76 | case XFER_PIO_2: |
| 77 | timing = 0x0404; |
| 78 | break; |
| 79 | case XFER_PIO_1: |
| 80 | timing = 0x0508; |
| 81 | break; |
| 82 | case XFER_PIO_0: |
| 83 | timing = 0x0808; |
| 84 | break; |
| 85 | default: |
| 86 | return -1; |
| 87 | } |
| 88 | |
| 89 | triflex_timings &= ~(0xFFFF << (16 * unit)); |
| 90 | triflex_timings |= (timing << (16 * unit)); |
| 91 | |
| 92 | pci_write_config_dword(dev, channel_offset, triflex_timings); |
| 93 | |
| 94 | return (ide_config_drive_speed(drive, speed)); |
| 95 | } |
| 96 | |
| 97 | static void triflex_tune_drive(ide_drive_t *drive, u8 pio) |
| 98 | { |
| 99 | int use_pio = ide_get_best_pio_mode(drive, pio, 4, NULL); |
| 100 | (void) triflex_tune_chipset(drive, (XFER_PIO_0 + use_pio)); |
| 101 | } |
| 102 | |
| 103 | static int triflex_config_drive_for_dma(ide_drive_t *drive) |
| 104 | { |
| 105 | int speed = ide_dma_speed(drive, 0); /* No ultra speeds */ |
| 106 | |
Bartlomiej Zolnierkiewicz | 39baf8a | 2007-02-17 02:40:20 +0100 | [diff] [blame] | 107 | if (!speed) |
| 108 | return 0; |
| 109 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 110 | (void) triflex_tune_chipset(drive, speed); |
| 111 | return ide_dma_enable(drive); |
| 112 | } |
| 113 | |
| 114 | static int triflex_config_drive_xfer_rate(ide_drive_t *drive) |
| 115 | { |
| 116 | ide_hwif_t *hwif = HWIF(drive); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 117 | |
Bartlomiej Zolnierkiewicz | 7569e8d | 2007-02-17 02:40:25 +0100 | [diff] [blame^] | 118 | if (ide_use_dma(drive) && triflex_config_drive_for_dma(drive)) |
| 119 | return hwif->ide_dma_on(drive); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 120 | |
| 121 | hwif->tuneproc(drive, 255); |
| 122 | return hwif->ide_dma_off_quietly(drive); |
| 123 | } |
| 124 | |
Herbert Xu | d6904ab | 2005-07-03 16:40:31 +0200 | [diff] [blame] | 125 | static void __devinit init_hwif_triflex(ide_hwif_t *hwif) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 126 | { |
| 127 | hwif->tuneproc = &triflex_tune_drive; |
| 128 | hwif->speedproc = &triflex_tune_chipset; |
| 129 | |
| 130 | hwif->atapi_dma = 1; |
| 131 | hwif->mwdma_mask = 0x07; |
| 132 | hwif->swdma_mask = 0x07; |
| 133 | hwif->ide_dma_check = &triflex_config_drive_xfer_rate; |
| 134 | |
| 135 | if (!noautodma) |
| 136 | hwif->autodma = 1; |
| 137 | hwif->drives[0].autodma = hwif->autodma; |
| 138 | hwif->drives[1].autodma = hwif->autodma; |
| 139 | } |
| 140 | |
| 141 | static ide_pci_device_t triflex_device __devinitdata = { |
| 142 | .name = "TRIFLEX", |
| 143 | .init_hwif = init_hwif_triflex, |
| 144 | .channels = 2, |
| 145 | .autodma = AUTODMA, |
| 146 | .enablebits = {{0x80, 0x01, 0x01}, {0x80, 0x02, 0x02}}, |
| 147 | .bootable = ON_BOARD, |
| 148 | }; |
| 149 | |
| 150 | static int __devinit triflex_init_one(struct pci_dev *dev, |
| 151 | const struct pci_device_id *id) |
| 152 | { |
| 153 | return ide_setup_pci_device(dev, &triflex_device); |
| 154 | } |
| 155 | |
| 156 | static struct pci_device_id triflex_pci_tbl[] = { |
| 157 | { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_TRIFLEX_IDE, |
| 158 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, |
| 159 | { 0, }, |
| 160 | }; |
| 161 | MODULE_DEVICE_TABLE(pci, triflex_pci_tbl); |
| 162 | |
| 163 | static struct pci_driver driver = { |
| 164 | .name = "TRIFLEX_IDE", |
| 165 | .id_table = triflex_pci_tbl, |
| 166 | .probe = triflex_init_one, |
| 167 | }; |
| 168 | |
Bartlomiej Zolnierkiewicz | 82ab1ee | 2007-01-27 13:46:56 +0100 | [diff] [blame] | 169 | static int __init triflex_ide_init(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 170 | { |
| 171 | return ide_pci_register_driver(&driver); |
| 172 | } |
| 173 | |
| 174 | module_init(triflex_ide_init); |
| 175 | |
| 176 | MODULE_AUTHOR("Torben Mathiasen"); |
| 177 | MODULE_DESCRIPTION("PCI driver module for Compaq Triflex IDE"); |
| 178 | MODULE_LICENSE("GPL"); |
| 179 | |
| 180 | |