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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 | /* * 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/types.h> #include <linux/module.h> #include <linux/kernel.h> #include <linux/hdreg.h> #include <linux/pci.h> #include <linux/ide.h> #include <linux/init.h> #define DRV_NAME "triflex" static void triflex_set_mode(ide_drive_t *drive, const u8 speed) { ide_hwif_t *hwif = HWIF(drive); struct pci_dev *dev = to_pci_dev(hwif->dev); u8 channel_offset = hwif->channel ? 0x74 : 0x70; u16 timing = 0; u32 triflex_timings = 0; u8 unit = (drive->select.b.unit & 0x01); 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; } triflex_timings &= ~(0xFFFF << (16 * unit)); triflex_timings |= (timing << (16 * unit)); pci_write_config_dword(dev, channel_offset, triflex_timings); } static void triflex_set_pio_mode(ide_drive_t *drive, const u8 pio) { triflex_set_mode(drive, XFER_PIO_0 + pio); } static const struct ide_port_ops triflex_port_ops = { .set_pio_mode = triflex_set_pio_mode, .set_dma_mode = triflex_set_mode, }; static const struct ide_port_info triflex_device __devinitdata = { .name = DRV_NAME, .enablebits = {{0x80, 0x01, 0x01}, {0x80, 0x02, 0x02}}, .port_ops = &triflex_port_ops, .pio_mask = ATA_PIO4, .swdma_mask = ATA_SWDMA2, .mwdma_mask = ATA_MWDMA2, }; static int __devinit triflex_init_one(struct pci_dev *dev, const struct pci_device_id *id) { return ide_pci_init_one(dev, &triflex_device, NULL); } static const struct pci_device_id triflex_pci_tbl[] = { { PCI_VDEVICE(COMPAQ, PCI_DEVICE_ID_COMPAQ_TRIFLEX_IDE), 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, .remove = ide_pci_remove, }; static int __init triflex_ide_init(void) { return ide_pci_register_driver(&driver); } static void __exit triflex_ide_exit(void) { pci_unregister_driver(&driver); } module_init(triflex_ide_init); module_exit(triflex_ide_exit); MODULE_AUTHOR("Torben Mathiasen"); MODULE_DESCRIPTION("PCI driver module for Compaq Triflex IDE"); MODULE_LICENSE("GPL"); |