ide: remove ->ide_dma_check (take 2)
[deliverable/linux.git] / drivers / ide / pci / triflex.c
CommitLineData
1da177e4
LT
1/*
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
1da177e4
LT
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>
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
88b2b32b 43static void triflex_set_mode(ide_drive_t *drive, const u8 speed)
1da177e4
LT
44{
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);
1da177e4
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51
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;
84 default:
88b2b32b 85 return;
1da177e4
LT
86 }
87
88 triflex_timings &= ~(0xFFFF << (16 * unit));
89 triflex_timings |= (timing << (16 * unit));
90
91 pci_write_config_dword(dev, channel_offset, triflex_timings);
1da177e4
LT
92}
93
26bcb879 94static void triflex_set_pio_mode(ide_drive_t *drive, const u8 pio)
1da177e4 95{
88b2b32b 96 triflex_set_mode(drive, XFER_PIO_0 + pio);
1da177e4
LT
97}
98
d6904ab6 99static void __devinit init_hwif_triflex(ide_hwif_t *hwif)
1da177e4 100{
26bcb879 101 hwif->set_pio_mode = &triflex_set_pio_mode;
88b2b32b 102 hwif->set_dma_mode = &triflex_set_mode;
1da177e4 103
88b47040
BZ
104 if (hwif->dma_base == 0)
105 return;
106
1da177e4
LT
107 hwif->atapi_dma = 1;
108 hwif->mwdma_mask = 0x07;
109 hwif->swdma_mask = 0x07;
1da177e4
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110
111 if (!noautodma)
112 hwif->autodma = 1;
113 hwif->drives[0].autodma = hwif->autodma;
114 hwif->drives[1].autodma = hwif->autodma;
115}
116
117static ide_pci_device_t triflex_device __devinitdata = {
118 .name = "TRIFLEX",
119 .init_hwif = init_hwif_triflex,
1da177e4
LT
120 .autodma = AUTODMA,
121 .enablebits = {{0x80, 0x01, 0x01}, {0x80, 0x02, 0x02}},
122 .bootable = ON_BOARD,
4099d143 123 .pio_mask = ATA_PIO4,
1da177e4
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124};
125
126static int __devinit triflex_init_one(struct pci_dev *dev,
127 const struct pci_device_id *id)
128{
129 return ide_setup_pci_device(dev, &triflex_device);
130}
131
132static struct pci_device_id triflex_pci_tbl[] = {
133 { PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_TRIFLEX_IDE,
134 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
135 { 0, },
136};
137MODULE_DEVICE_TABLE(pci, triflex_pci_tbl);
138
139static struct pci_driver driver = {
140 .name = "TRIFLEX_IDE",
141 .id_table = triflex_pci_tbl,
142 .probe = triflex_init_one,
143};
144
82ab1eec 145static int __init triflex_ide_init(void)
1da177e4
LT
146{
147 return ide_pci_register_driver(&driver);
148}
149
150module_init(triflex_ide_init);
151
152MODULE_AUTHOR("Torben Mathiasen");
153MODULE_DESCRIPTION("PCI driver module for Compaq Triflex IDE");
154MODULE_LICENSE("GPL");
155
156
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