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 int triflex_tune_chipset(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
);
93 return (ide_config_drive_speed(drive
, speed
));
96 static void triflex_set_pio_mode(ide_drive_t
*drive
, const u8 pio
)
98 (void)triflex_tune_chipset(drive
, XFER_PIO_0
+ pio
);
101 static int triflex_config_drive_xfer_rate(ide_drive_t
*drive
)
103 if (ide_tune_dma(drive
))
106 ide_set_max_pio(drive
);
111 static void __devinit
init_hwif_triflex(ide_hwif_t
*hwif
)
113 hwif
->set_pio_mode
= &triflex_set_pio_mode
;
114 hwif
->speedproc
= &triflex_tune_chipset
;
116 if (hwif
->dma_base
== 0)
120 hwif
->mwdma_mask
= 0x07;
121 hwif
->swdma_mask
= 0x07;
122 hwif
->ide_dma_check
= &triflex_config_drive_xfer_rate
;
126 hwif
->drives
[0].autodma
= hwif
->autodma
;
127 hwif
->drives
[1].autodma
= hwif
->autodma
;
130 static ide_pci_device_t triflex_device __devinitdata
= {
132 .init_hwif
= init_hwif_triflex
,
134 .enablebits
= {{0x80, 0x01, 0x01}, {0x80, 0x02, 0x02}},
135 .bootable
= ON_BOARD
,
136 .pio_mask
= ATA_PIO4
,
139 static int __devinit
triflex_init_one(struct pci_dev
*dev
,
140 const struct pci_device_id
*id
)
142 return ide_setup_pci_device(dev
, &triflex_device
);
145 static struct pci_device_id triflex_pci_tbl
[] = {
146 { PCI_VENDOR_ID_COMPAQ
, PCI_DEVICE_ID_COMPAQ_TRIFLEX_IDE
,
147 PCI_ANY_ID
, PCI_ANY_ID
, 0, 0, 0 },
150 MODULE_DEVICE_TABLE(pci
, triflex_pci_tbl
);
152 static struct pci_driver driver
= {
153 .name
= "TRIFLEX_IDE",
154 .id_table
= triflex_pci_tbl
,
155 .probe
= triflex_init_one
,
158 static int __init
triflex_ide_init(void)
160 return ide_pci_register_driver(&driver
);
163 module_init(triflex_ide_init
);
165 MODULE_AUTHOR("Torben Mathiasen");
166 MODULE_DESCRIPTION("PCI driver module for Compaq Triflex IDE");
167 MODULE_LICENSE("GPL");