Commit | Line | Data |
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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 | 43 | static 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 LT |
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; | |
1da177e4 LT |
84 | } |
85 | ||
86 | triflex_timings &= ~(0xFFFF << (16 * unit)); | |
87 | triflex_timings |= (timing << (16 * unit)); | |
88 | ||
89 | pci_write_config_dword(dev, channel_offset, triflex_timings); | |
1da177e4 LT |
90 | } |
91 | ||
26bcb879 | 92 | static void triflex_set_pio_mode(ide_drive_t *drive, const u8 pio) |
1da177e4 | 93 | { |
88b2b32b | 94 | triflex_set_mode(drive, XFER_PIO_0 + pio); |
1da177e4 LT |
95 | } |
96 | ||
d6904ab6 | 97 | static void __devinit init_hwif_triflex(ide_hwif_t *hwif) |
1da177e4 | 98 | { |
26bcb879 | 99 | hwif->set_pio_mode = &triflex_set_pio_mode; |
88b2b32b | 100 | hwif->set_dma_mode = &triflex_set_mode; |
1da177e4 LT |
101 | } |
102 | ||
85620436 | 103 | static const struct ide_port_info triflex_device __devinitdata = { |
1da177e4 LT |
104 | .name = "TRIFLEX", |
105 | .init_hwif = init_hwif_triflex, | |
1da177e4 | 106 | .enablebits = {{0x80, 0x01, 0x01}, {0x80, 0x02, 0x02}}, |
7cab14a7 | 107 | .host_flags = IDE_HFLAG_BOOTABLE, |
4099d143 | 108 | .pio_mask = ATA_PIO4, |
5f8b6c34 BZ |
109 | .swdma_mask = ATA_SWDMA2, |
110 | .mwdma_mask = ATA_MWDMA2, | |
1da177e4 LT |
111 | }; |
112 | ||
113 | static 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 | ||
9cbcc5e3 BZ |
119 | static const struct pci_device_id triflex_pci_tbl[] = { |
120 | { PCI_VDEVICE(COMPAQ, PCI_DEVICE_ID_COMPAQ_TRIFLEX_IDE), 0 }, | |
1da177e4 LT |
121 | { 0, }, |
122 | }; | |
123 | MODULE_DEVICE_TABLE(pci, triflex_pci_tbl); | |
124 | ||
125 | static struct pci_driver driver = { | |
126 | .name = "TRIFLEX_IDE", | |
127 | .id_table = triflex_pci_tbl, | |
128 | .probe = triflex_init_one, | |
129 | }; | |
130 | ||
82ab1eec | 131 | static int __init triflex_ide_init(void) |
1da177e4 LT |
132 | { |
133 | return ide_pci_register_driver(&driver); | |
134 | } | |
135 | ||
136 | module_init(triflex_ide_init); | |
137 | ||
138 | MODULE_AUTHOR("Torben Mathiasen"); | |
139 | MODULE_DESCRIPTION("PCI driver module for Compaq Triflex IDE"); | |
140 | MODULE_LICENSE("GPL"); | |
141 | ||
142 |