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

/*
 * 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/delay.h>
#include <linux/timer.h>
#include <linux/mm.h>
#include <linux/ioport.h>
#include <linux/blkdev.h>
#include <linux/hdreg.h>
#include <linux/pci.h>
#include <linux/ide.h>
#include <linux/init.h>

static void triflex_set_mode(ide_drive_t *drive, const u8 speed)
{
	ide_hwif_t *hwif = HWIF(drive);
	struct pci_dev *dev = hwif->pci_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;
		default:
			return;
	}

	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 void __devinit init_hwif_triflex(ide_hwif_t *hwif)
{
	hwif->set_pio_mode = &triflex_set_pio_mode;
	hwif->set_dma_mode = &triflex_set_mode;
}

static const struct ide_port_info triflex_device __devinitdata = {
	.name		= "TRIFLEX",
	.init_hwif	= init_hwif_triflex,
	.enablebits	= {{0x80, 0x01, 0x01}, {0x80, 0x02, 0x02}},
	.host_flags	= IDE_HFLAG_BOOTABLE,
	.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_setup_pci_device(dev, &triflex_device);
}

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,
};

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

module_init(triflex_ide_init);

MODULE_AUTHOR("Torben Mathiasen");
MODULE_DESCRIPTION("PCI driver module for Compaq Triflex IDE");
MODULE_LICENSE("GPL");
Commit	Line	Data
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;
	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	}
1da177e4 LT	93
26bcb879	94	static 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	}
1da177e4 LT	98
d6904ab6	99	static 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 LT	103	}
1da177e4 LT	104
85620436	105	static const struct ide_port_info triflex_device __devinitdata = {
1da177e4 LT	106	.name = "TRIFLEX",
1da177e4 LT	107	.init_hwif = init_hwif_triflex,
1da177e4	108	.enablebits = {{0x80, 0x01, 0x01}, {0x80, 0x02, 0x02}},
7cab14a7	109	.host_flags = IDE_HFLAG_BOOTABLE,
4099d143	110	.pio_mask = ATA_PIO4,
5f8b6c34 BZ	111	.swdma_mask = ATA_SWDMA2,
5f8b6c34 BZ	112	.mwdma_mask = ATA_MWDMA2,
1da177e4 LT	113	};
	114
	115	static int __devinit triflex_init_one(struct pci_dev *dev,
	116	const struct pci_device_id *id)
	117	{
	118	return ide_setup_pci_device(dev, &triflex_device);
	119	}
	120
9cbcc5e3 BZ	121	static const struct pci_device_id triflex_pci_tbl[] = {
9cbcc5e3 BZ	122	{ PCI_VDEVICE(COMPAQ, PCI_DEVICE_ID_COMPAQ_TRIFLEX_IDE), 0 },
1da177e4 LT	123	{ 0, },
	124	};
	125	MODULE_DEVICE_TABLE(pci, triflex_pci_tbl);
	126
	127	static struct pci_driver driver = {
	128	.name = "TRIFLEX_IDE",
	129	.id_table = triflex_pci_tbl,
	130	.probe = triflex_init_one,
	131	};
	132
82ab1eec	133	static int __init triflex_ide_init(void)
1da177e4 LT	134	{
	135	return ide_pci_register_driver(&driver);
	136	}
	137
	138	module_init(triflex_ide_init);
	139
	140	MODULE_AUTHOR("Torben Mathiasen");
	141	MODULE_DESCRIPTION("PCI driver module for Compaq Triflex IDE");
	142	MODULE_LICENSE("GPL");
	143
	144