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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
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 Torvalds1da177e2005-04-16 15:20:36 -070030#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
Bartlomiej Zolnierkiewicz88b2b322007-10-13 17:47:51 +020043static void triflex_set_mode(ide_drive_t *drive, const u8 speed)
Linus Torvalds1da177e2005-04-16 15:20:36 -070044{
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);
Linus Torvalds1da177e2005-04-16 15:20:36 -070051
52 pci_read_config_dword(dev, channel_offset, &triflex_timings);
53
54 switch(speed) {
55 case XFER_MW_DMA_2:
56 timing = 0x0103;
57 break;
58 case XFER_MW_DMA_1:
59 timing = 0x0203;
60 break;
61 case XFER_MW_DMA_0:
62 timing = 0x0808;
63 break;
64 case XFER_SW_DMA_2:
65 case XFER_SW_DMA_1:
66 case XFER_SW_DMA_0:
67 timing = 0x0f0f;
68 break;
69 case XFER_PIO_4:
70 timing = 0x0202;
71 break;
72 case XFER_PIO_3:
73 timing = 0x0204;
74 break;
75 case XFER_PIO_2:
76 timing = 0x0404;
77 break;
78 case XFER_PIO_1:
79 timing = 0x0508;
80 break;
81 case XFER_PIO_0:
82 timing = 0x0808;
83 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -070084 }
85
86 triflex_timings &= ~(0xFFFF << (16 * unit));
87 triflex_timings |= (timing << (16 * unit));
88
89 pci_write_config_dword(dev, channel_offset, triflex_timings);
Linus Torvalds1da177e2005-04-16 15:20:36 -070090}
91
Bartlomiej Zolnierkiewicz26bcb872007-10-11 23:54:00 +020092static void triflex_set_pio_mode(ide_drive_t *drive, const u8 pio)
Linus Torvalds1da177e2005-04-16 15:20:36 -070093{
Bartlomiej Zolnierkiewicz88b2b322007-10-13 17:47:51 +020094 triflex_set_mode(drive, XFER_PIO_0 + pio);
Linus Torvalds1da177e2005-04-16 15:20:36 -070095}
96
Herbert Xud6904ab2005-07-03 16:40:31 +020097static void __devinit init_hwif_triflex(ide_hwif_t *hwif)
Linus Torvalds1da177e2005-04-16 15:20:36 -070098{
Bartlomiej Zolnierkiewicz26bcb872007-10-11 23:54:00 +020099 hwif->set_pio_mode = &triflex_set_pio_mode;
Bartlomiej Zolnierkiewicz88b2b322007-10-13 17:47:51 +0200100 hwif->set_dma_mode = &triflex_set_mode;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700101}
102
Bartlomiej Zolnierkiewicz85620432007-10-20 00:32:34 +0200103static const struct ide_port_info triflex_device __devinitdata = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700104 .name = "TRIFLEX",
105 .init_hwif = init_hwif_triflex,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700106 .enablebits = {{0x80, 0x01, 0x01}, {0x80, 0x02, 0x02}},
Bartlomiej Zolnierkiewicz7cab14a2007-10-19 00:30:06 +0200107 .host_flags = IDE_HFLAG_BOOTABLE,
Bartlomiej Zolnierkiewicz4099d142007-07-20 01:11:59 +0200108 .pio_mask = ATA_PIO4,
Bartlomiej Zolnierkiewicz5f8b6c32007-10-19 00:30:07 +0200109 .swdma_mask = ATA_SWDMA2,
110 .mwdma_mask = ATA_MWDMA2,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700111};
112
113static int __devinit triflex_init_one(struct pci_dev *dev,
114 const struct pci_device_id *id)
115{
116 return ide_setup_pci_device(dev, &triflex_device);
117}
118
Bartlomiej Zolnierkiewicz9cbcc5e2007-10-16 22:29:56 +0200119static const struct pci_device_id triflex_pci_tbl[] = {
120 { PCI_VDEVICE(COMPAQ, PCI_DEVICE_ID_COMPAQ_TRIFLEX_IDE), 0 },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700121 { 0, },
122};
123MODULE_DEVICE_TABLE(pci, triflex_pci_tbl);
124
125static struct pci_driver driver = {
126 .name = "TRIFLEX_IDE",
127 .id_table = triflex_pci_tbl,
128 .probe = triflex_init_one,
129};
130
Bartlomiej Zolnierkiewicz82ab1ee2007-01-27 13:46:56 +0100131static int __init triflex_ide_init(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700132{
133 return ide_pci_register_driver(&driver);
134}
135
136module_init(triflex_ide_init);
137
138MODULE_AUTHOR("Torben Mathiasen");
139MODULE_DESCRIPTION("PCI driver module for Compaq Triflex IDE");
140MODULE_LICENSE("GPL");
141
142