4 * IDE Chipset driver for the Compaq TriFlex IDE controller.
6 * Known to work with the Compaq Workstation 5x00 series.
8 * Copyright (C) 2002 Hewlett-Packard Development Group, L.P.
9 * Author: Torben Mathiasen <torben.mathiasen@hp.com>
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.
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.
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
24 * Loosely based on the piix & svwks drivers.
27 * Not publically available.
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>
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>
43 static void triflex_set_mode(ide_drive_t *drive, const u8 speed)
45 ide_hwif_t *hwif = HWIF(drive);
46 struct pci_dev *dev = hwif->pci_dev;
47 u8 channel_offset = hwif->channel ? 0x74 : 0x70;
49 u32 triflex_timings = 0;
50 u8 unit = (drive->select.b.unit & 0x01);
52 pci_read_config_dword(dev, channel_offset, &triflex_timings);
88 triflex_timings &= ~(0xFFFF << (16 * unit));
89 triflex_timings |= (timing << (16 * unit));
91 pci_write_config_dword(dev, channel_offset, triflex_timings);
94 static void triflex_set_pio_mode(ide_drive_t *drive, const u8 pio)
96 triflex_set_mode(drive, XFER_PIO_0 + pio);
99 static void __devinit init_hwif_triflex(ide_hwif_t *hwif)
101 hwif->set_pio_mode = &triflex_set_pio_mode;
102 hwif->set_dma_mode = &triflex_set_mode;
104 if (hwif->dma_base == 0)
107 hwif->mwdma_mask = 0x07;
108 hwif->swdma_mask = 0x07;
111 static ide_pci_device_t triflex_device __devinitdata = {
113 .init_hwif = init_hwif_triflex,
114 .enablebits = {{0x80, 0x01, 0x01}, {0x80, 0x02, 0x02}},
115 .host_flags = IDE_HFLAG_BOOTABLE,
116 .pio_mask = ATA_PIO4,
119 static int __devinit triflex_init_one(struct pci_dev *dev,
120 const struct pci_device_id *id)
122 return ide_setup_pci_device(dev, &triflex_device);
125 static const struct pci_device_id triflex_pci_tbl[] = {
126 { PCI_VDEVICE(COMPAQ, PCI_DEVICE_ID_COMPAQ_TRIFLEX_IDE), 0 },
129 MODULE_DEVICE_TABLE(pci, triflex_pci_tbl);
131 static struct pci_driver driver = {
132 .name = "TRIFLEX_IDE",
133 .id_table = triflex_pci_tbl,
134 .probe = triflex_init_one,
137 static int __init triflex_ide_init(void)
139 return ide_pci_register_driver(&driver);
142 module_init(triflex_ide_init);
144 MODULE_AUTHOR("Torben Mathiasen");
145 MODULE_DESCRIPTION("PCI driver module for Compaq Triflex IDE");
146 MODULE_LICENSE("GPL");