2 * IDE Chipset driver for the Compaq TriFlex IDE controller.
4 * Known to work with the Compaq Workstation 5x00 series.
6 * Copyright (C) 2002 Hewlett-Packard Development Group, L.P.
7 * Author: Torben Mathiasen <torben.mathiasen@hp.com>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 * Loosely based on the piix & svwks drivers.
25 * Not publically available.
28 #include <linux/types.h>
29 #include <linux/module.h>
30 #include <linux/kernel.h>
31 #include <linux/hdreg.h>
32 #include <linux/pci.h>
33 #include <linux/ide.h>
34 #include <linux/init.h>
36 static void triflex_set_mode(ide_drive_t *drive, const u8 speed)
38 ide_hwif_t *hwif = HWIF(drive);
39 struct pci_dev *dev = to_pci_dev(hwif->dev);
40 u8 channel_offset = hwif->channel ? 0x74 : 0x70;
42 u32 triflex_timings = 0;
43 u8 unit = (drive->select.b.unit & 0x01);
45 pci_read_config_dword(dev, channel_offset, &triflex_timings);
79 triflex_timings &= ~(0xFFFF << (16 * unit));
80 triflex_timings |= (timing << (16 * unit));
82 pci_write_config_dword(dev, channel_offset, triflex_timings);
85 static void triflex_set_pio_mode(ide_drive_t *drive, const u8 pio)
87 triflex_set_mode(drive, XFER_PIO_0 + pio);
90 static void __devinit init_hwif_triflex(ide_hwif_t *hwif)
92 hwif->set_pio_mode = &triflex_set_pio_mode;
93 hwif->set_dma_mode = &triflex_set_mode;
96 static const struct ide_port_info triflex_device __devinitdata = {
98 .init_hwif = init_hwif_triflex,
99 .enablebits = {{0x80, 0x01, 0x01}, {0x80, 0x02, 0x02}},
100 .host_flags = IDE_HFLAG_BOOTABLE,
101 .pio_mask = ATA_PIO4,
102 .swdma_mask = ATA_SWDMA2,
103 .mwdma_mask = ATA_MWDMA2,
106 static int __devinit triflex_init_one(struct pci_dev *dev,
107 const struct pci_device_id *id)
109 return ide_setup_pci_device(dev, &triflex_device);
112 static const struct pci_device_id triflex_pci_tbl[] = {
113 { PCI_VDEVICE(COMPAQ, PCI_DEVICE_ID_COMPAQ_TRIFLEX_IDE), 0 },
116 MODULE_DEVICE_TABLE(pci, triflex_pci_tbl);
118 static struct pci_driver driver = {
119 .name = "TRIFLEX_IDE",
120 .id_table = triflex_pci_tbl,
121 .probe = triflex_init_one,
124 static int __init triflex_ide_init(void)
126 return ide_pci_register_driver(&driver);
129 module_init(triflex_ide_init);
131 MODULE_AUTHOR("Torben Mathiasen");
132 MODULE_DESCRIPTION("PCI driver module for Compaq Triflex IDE");
133 MODULE_LICENSE("GPL");