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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 | /* * triflex.c * * IDE Chipset driver for the Compaq TriFlex IDE controller. * * Known to work with the Compaq Workstation 5x00 series. * * Copyright (C) 2002 Hewlett-Packard Development Group, L.P. * Author: Torben Mathiasen <torben.mathiasen@hp.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * Loosely based on the piix & svwks drivers. * * Documentation: * Not publically available. */ #include <linux/config.h> #include <linux/types.h> #include <linux/module.h> #include <linux/kernel.h> #include <linux/delay.h> #include <linux/timer.h> #include <linux/mm.h> #include <linux/ioport.h> #include <linux/blkdev.h> #include <linux/hdreg.h> #include <linux/pci.h> #include <linux/ide.h> #include <linux/init.h> static int triflex_tune_chipset(ide_drive_t *drive, u8 xferspeed) { ide_hwif_t *hwif = HWIF(drive); struct pci_dev *dev = hwif->pci_dev; u8 channel_offset = hwif->channel ? 0x74 : 0x70; u16 timing = 0; u32 triflex_timings = 0; u8 unit = (drive->select.b.unit & 0x01); u8 speed = ide_rate_filter(0, xferspeed); pci_read_config_dword(dev, channel_offset, &triflex_timings); switch(speed) { case XFER_MW_DMA_2: timing = 0x0103; break; case XFER_MW_DMA_1: timing = 0x0203; break; case XFER_MW_DMA_0: timing = 0x0808; break; case XFER_SW_DMA_2: case XFER_SW_DMA_1: case XFER_SW_DMA_0: timing = 0x0f0f; break; case XFER_PIO_4: timing = 0x0202; break; case XFER_PIO_3: timing = 0x0204; break; case XFER_PIO_2: timing = 0x0404; break; case XFER_PIO_1: timing = 0x0508; break; case XFER_PIO_0: timing = 0x0808; break; default: return -1; } triflex_timings &= ~(0xFFFF << (16 * unit)); triflex_timings |= (timing << (16 * unit)); pci_write_config_dword(dev, channel_offset, triflex_timings); return (ide_config_drive_speed(drive, speed)); } static void triflex_tune_drive(ide_drive_t *drive, u8 pio) { int use_pio = ide_get_best_pio_mode(drive, pio, 4, NULL); (void) triflex_tune_chipset(drive, (XFER_PIO_0 + use_pio)); } static int triflex_config_drive_for_dma(ide_drive_t *drive) { int speed = ide_dma_speed(drive, 0); /* No ultra speeds */ if (!speed) { u8 pspeed = ide_get_best_pio_mode(drive, 255, 4, NULL); speed = XFER_PIO_0 + pspeed; } (void) triflex_tune_chipset(drive, speed); return ide_dma_enable(drive); } static int triflex_config_drive_xfer_rate(ide_drive_t *drive) { ide_hwif_t *hwif = HWIF(drive); struct hd_driveid *id = drive->id; if ((id->capability & 1) && drive->autodma) { if (ide_use_dma(drive)) { if (triflex_config_drive_for_dma(drive)) return hwif->ide_dma_on(drive); } } hwif->tuneproc(drive, 255); return hwif->ide_dma_off_quietly(drive); } static void __devinit init_hwif_triflex(ide_hwif_t *hwif) { hwif->tuneproc = &triflex_tune_drive; hwif->speedproc = &triflex_tune_chipset; hwif->atapi_dma = 1; hwif->mwdma_mask = 0x07; hwif->swdma_mask = 0x07; hwif->ide_dma_check = &triflex_config_drive_xfer_rate; if (!noautodma) hwif->autodma = 1; hwif->drives[0].autodma = hwif->autodma; hwif->drives[1].autodma = hwif->autodma; } static ide_pci_device_t triflex_device __devinitdata = { .name = "TRIFLEX", .init_hwif = init_hwif_triflex, .channels = 2, .autodma = AUTODMA, .enablebits = {{0x80, 0x01, 0x01}, {0x80, 0x02, 0x02}}, .bootable = ON_BOARD, }; static int __devinit triflex_init_one(struct pci_dev *dev, const struct pci_device_id *id) { return ide_setup_pci_device(dev, &triflex_device); } static struct pci_device_id triflex_pci_tbl[] = { { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_TRIFLEX_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, { 0, }, }; MODULE_DEVICE_TABLE(pci, triflex_pci_tbl); static struct pci_driver driver = { .name = "TRIFLEX_IDE", .id_table = triflex_pci_tbl, .probe = triflex_init_one, }; static int triflex_ide_init(void) { return ide_pci_register_driver(&driver); } module_init(triflex_ide_init); MODULE_AUTHOR("Torben Mathiasen"); MODULE_DESCRIPTION("PCI driver module for Compaq Triflex IDE"); MODULE_LICENSE("GPL"); |