[mirror_ubuntu-bionic-kernel.git] / drivers / ide / pci / triflex.c

/*
 * IDE Chipset driver for the Compaq TriFlex IDE controller.
 * 
 * Known to work with the Compaq Workstation 5x00 series.
 *
 * Copyright (C) 2002 Hewlett-Packard Development Group, L.P.
 * Author: Torben Mathiasen <torben.mathiasen@hp.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 * 
 * Loosely based on the piix & svwks drivers.
 *
 * Documentation:
 *	Not publically available.
 */

#include <linux/types.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/ide.h>
#include <linux/init.h>

#define DRV_NAME "triflex"

static void triflex_set_mode(ide_drive_t *drive, const u8 speed)
{
	ide_hwif_t *hwif = HWIF(drive);
	struct pci_dev *dev = to_pci_dev(hwif->dev);
	u8 channel_offset = hwif->channel ? 0x74 : 0x70;
	u16 timing = 0;
	u32 triflex_timings = 0;
	u8 unit = (drive->select.b.unit & 0x01);
	
	pci_read_config_dword(dev, channel_offset, &triflex_timings);
	
	switch(speed) {
		case XFER_MW_DMA_2:
			timing = 0x0103; 
			break;
		case XFER_MW_DMA_1:
			timing = 0x0203;
			break;
		case XFER_MW_DMA_0:
			timing = 0x0808;
			break;
		case XFER_SW_DMA_2:
		case XFER_SW_DMA_1:
		case XFER_SW_DMA_0:
			timing = 0x0f0f;
			break;
		case XFER_PIO_4:
			timing = 0x0202;
			break;
		case XFER_PIO_3:
			timing = 0x0204;
			break;
		case XFER_PIO_2:
			timing = 0x0404;
			break;
		case XFER_PIO_1:
			timing = 0x0508;
			break;
		case XFER_PIO_0:
			timing = 0x0808;
			break;
	}

	triflex_timings &= ~(0xFFFF << (16 * unit));
	triflex_timings |= (timing << (16 * unit));
	
	pci_write_config_dword(dev, channel_offset, triflex_timings);
}

static void triflex_set_pio_mode(ide_drive_t *drive, const u8 pio)
{
	triflex_set_mode(drive, XFER_PIO_0 + pio);
}

static const struct ide_port_ops triflex_port_ops = {
	.set_pio_mode		= triflex_set_pio_mode,
	.set_dma_mode		= triflex_set_mode,
};

static const struct ide_port_info triflex_device __devinitdata = {
	.name		= DRV_NAME,
	.enablebits	= {{0x80, 0x01, 0x01}, {0x80, 0x02, 0x02}},
	.port_ops	= &triflex_port_ops,
	.pio_mask	= ATA_PIO4,
	.swdma_mask	= ATA_SWDMA2,
	.mwdma_mask	= ATA_MWDMA2,
};

static int __devinit triflex_init_one(struct pci_dev *dev, 
		const struct pci_device_id *id)
{
	return ide_pci_init_one(dev, &triflex_device, NULL);
}

static const struct pci_device_id triflex_pci_tbl[] = {
	{ PCI_VDEVICE(COMPAQ, PCI_DEVICE_ID_COMPAQ_TRIFLEX_IDE), 0 },
	{ 0, },
};
MODULE_DEVICE_TABLE(pci, triflex_pci_tbl);

static struct pci_driver driver = {
	.name		= "TRIFLEX_IDE",
	.id_table	= triflex_pci_tbl,
	.probe		= triflex_init_one,
	.remove		= ide_pci_remove,
};

static int __init triflex_ide_init(void)
{
	return ide_pci_register_driver(&driver);
}

static void __exit triflex_ide_exit(void)
{
	pci_unregister_driver(&driver);
}

module_init(triflex_ide_init);
module_exit(triflex_ide_exit);

MODULE_AUTHOR("Torben Mathiasen");
MODULE_DESCRIPTION("PCI driver module for Compaq Triflex IDE");
MODULE_LICENSE("GPL");
Commit	Line	Data
1da177e4	1	/*
1da177e4 LT	2	* IDE Chipset driver for the Compaq TriFlex IDE controller.
	3	*
	4	* Known to work with the Compaq Workstation 5x00 series.
	5	*
	6	* Copyright (C) 2002 Hewlett-Packard Development Group, L.P.
	7	* Author: Torben Mathiasen <torben.mathiasen@hp.com>
	8	*
	9	* This program is free software; you can redistribute it and/or modify
	10	* it under the terms of the GNU General Public License version 2 as
	11	* published by the Free Software Foundation.
	12	*
	13	* This program is distributed in the hope that it will be useful,
	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	* GNU General Public License for more details.
	17	*
	18	* You should have received a copy of the GNU General Public License
	19	* along with this program; if not, write to the Free Software
	20	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	21	*
	22	* Loosely based on the piix & svwks drivers.
	23	*
	24	* Documentation:
	25	* Not publically available.
	26	*/
	27
1da177e4 LT	28	#include <linux/types.h>
	29	#include <linux/module.h>
	30	#include <linux/kernel.h>
1da177e4 LT	31	#include <linux/pci.h>
	32	#include <linux/ide.h>
	33	#include <linux/init.h>
	34
ced3ec8a BZ	35	#define DRV_NAME "triflex"
ced3ec8a BZ	36
88b2b32b	37	static void triflex_set_mode(ide_drive_t *drive, const u8 speed)
1da177e4 LT	38	{
1da177e4 LT	39	ide_hwif_t *hwif = HWIF(drive);
36501650	40	struct pci_dev *dev = to_pci_dev(hwif->dev);
1da177e4 LT	41	u8 channel_offset = hwif->channel ? 0x74 : 0x70;
	42	u16 timing = 0;
	43	u32 triflex_timings = 0;
	44	u8 unit = (drive->select.b.unit & 0x01);
1da177e4 LT	45
	46	pci_read_config_dword(dev, channel_offset, &triflex_timings);
	47
	48	switch(speed) {
	49	case XFER_MW_DMA_2:
	50	timing = 0x0103;
	51	break;
	52	case XFER_MW_DMA_1:
	53	timing = 0x0203;
	54	break;
	55	case XFER_MW_DMA_0:
	56	timing = 0x0808;
	57	break;
	58	case XFER_SW_DMA_2:
	59	case XFER_SW_DMA_1:
	60	case XFER_SW_DMA_0:
	61	timing = 0x0f0f;
	62	break;
	63	case XFER_PIO_4:
	64	timing = 0x0202;
	65	break;
	66	case XFER_PIO_3:
	67	timing = 0x0204;
	68	break;
	69	case XFER_PIO_2:
	70	timing = 0x0404;
	71	break;
	72	case XFER_PIO_1:
	73	timing = 0x0508;
	74	break;
	75	case XFER_PIO_0:
	76	timing = 0x0808;
	77	break;
1da177e4 LT	78	}
	79
	80	triflex_timings &= ~(0xFFFF << (16 * unit));
	81	triflex_timings \|= (timing << (16 * unit));
	82
	83	pci_write_config_dword(dev, channel_offset, triflex_timings);
1da177e4 LT	84	}
1da177e4 LT	85
26bcb879	86	static void triflex_set_pio_mode(ide_drive_t *drive, const u8 pio)
1da177e4	87	{
88b2b32b	88	triflex_set_mode(drive, XFER_PIO_0 + pio);
1da177e4 LT	89	}
1da177e4 LT	90
ac95beed BZ	91	static const struct ide_port_ops triflex_port_ops = {
	92	.set_pio_mode = triflex_set_pio_mode,
	93	.set_dma_mode = triflex_set_mode,
	94	};
1da177e4	95
85620436	96	static const struct ide_port_info triflex_device __devinitdata = {
ced3ec8a	97	.name = DRV_NAME,
1da177e4	98	.enablebits = {{0x80, 0x01, 0x01}, {0x80, 0x02, 0x02}},
ac95beed	99	.port_ops = &triflex_port_ops,
4099d143	100	.pio_mask = ATA_PIO4,
5f8b6c34 BZ	101	.swdma_mask = ATA_SWDMA2,
5f8b6c34 BZ	102	.mwdma_mask = ATA_MWDMA2,
1da177e4 LT	103	};
	104
	105	static int __devinit triflex_init_one(struct pci_dev *dev,
	106	const struct pci_device_id *id)
	107	{
6cdf6eb3	108	return ide_pci_init_one(dev, &triflex_device, NULL);
1da177e4 LT	109	}
1da177e4 LT	110
9cbcc5e3 BZ	111	static const struct pci_device_id triflex_pci_tbl[] = {
9cbcc5e3 BZ	112	{ PCI_VDEVICE(COMPAQ, PCI_DEVICE_ID_COMPAQ_TRIFLEX_IDE), 0 },
1da177e4 LT	113	{ 0, },
	114	};
	115	MODULE_DEVICE_TABLE(pci, triflex_pci_tbl);
	116
	117	static struct pci_driver driver = {
	118	.name = "TRIFLEX_IDE",
	119	.id_table = triflex_pci_tbl,
	120	.probe = triflex_init_one,
29d72f2d	121	.remove = ide_pci_remove,
1da177e4 LT	122	};
1da177e4 LT	123
82ab1eec	124	static int __init triflex_ide_init(void)
1da177e4 LT	125	{
	126	return ide_pci_register_driver(&driver);
	127	}
	128
29d72f2d BZ	129	static void __exit triflex_ide_exit(void)
	130	{
	131	pci_unregister_driver(&driver);
	132	}
	133
1da177e4	134	module_init(triflex_ide_init);
29d72f2d	135	module_exit(triflex_ide_exit);
1da177e4 LT	136
	137	MODULE_AUTHOR("Torben Mathiasen");
	138	MODULE_DESCRIPTION("PCI driver module for Compaq Triflex IDE");
	139	MODULE_LICENSE("GPL");
	140
	141