[mirror_ubuntu-hirsute-kernel.git] / drivers / staging / comedi / drivers / ni_670x.c

/*
    comedi/drivers/ni_670x.c
    Hardware driver for NI 670x devices

    COMEDI - Linux Control and Measurement Device Interface
    Copyright (C) 1997-2001 David A. Schleef <ds@schleef.org>

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    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.
*/
/*
Driver: ni_670x
Description: National Instruments 670x
Author: Bart Joris <bjoris@advalvas.be>
Updated: Wed, 11 Dec 2002 18:25:35 -0800
Devices: [National Instruments] PCI-6703 (ni_670x), PCI-6704
Status: unknown

Commands are not supported.
*/

/*
	Bart Joris <bjoris@advalvas.be> Last updated on 20/08/2001

	Manuals:

	322110a.pdf	PCI/PXI-6704 User Manual
	322110b.pdf	PCI/PXI-6703/6704 User Manual

*/

#include <linux/module.h>
#include <linux/pci.h>
#include <linux/interrupt.h>

#include "../comedidev.h"

#include "mite.h"

#define AO_VALUE_OFFSET			0x00
#define	AO_CHAN_OFFSET			0x0c
#define	AO_STATUS_OFFSET		0x10
#define AO_CONTROL_OFFSET		0x10
#define	DIO_PORT0_DIR_OFFSET	0x20
#define	DIO_PORT0_DATA_OFFSET	0x24
#define	DIO_PORT1_DIR_OFFSET	0x28
#define	DIO_PORT1_DATA_OFFSET	0x2c
#define	MISC_STATUS_OFFSET		0x14
#define	MISC_CONTROL_OFFSET		0x14

enum ni_670x_boardid {
	BOARD_PCI6703,
	BOARD_PXI6704,
	BOARD_PCI6704,
};

struct ni_670x_board {
	const char *name;
	unsigned short ao_chans;
};

static const struct ni_670x_board ni_670x_boards[] = {
	[BOARD_PCI6703] = {
		.name		= "PCI-6703",
		.ao_chans	= 16,
	},
	[BOARD_PXI6704] = {
		.name		= "PXI-6704",
		.ao_chans	= 32,
	},
	[BOARD_PCI6704] = {
		.name		= "PCI-6704",
		.ao_chans	= 32,
	},
};

struct ni_670x_private {

	struct mite_struct *mite;
	int boardtype;
	int dio;
	unsigned int ao_readback[32];
};

static int ni_670x_ao_winsn(struct comedi_device *dev,
			    struct comedi_subdevice *s,
			    struct comedi_insn *insn, unsigned int *data)
{
	struct ni_670x_private *devpriv = dev->private;
	int i;
	int chan = CR_CHAN(insn->chanspec);

	/* Channel number mapping :

	   NI 6703/ NI 6704     | NI 6704 Only
	   ----------------------------------------------------
	   vch(0)       :       0       | ich(16)       :       1
	   vch(1)       :       2       | ich(17)       :       3
	   .    :       .       |   .                   .
	   .    :       .       |   .                   .
	   .    :       .       |   .                   .
	   vch(15)      :       30      | ich(31)       :       31      */

	for (i = 0; i < insn->n; i++) {
		/* First write in channel register which channel to use */
		writel(((chan & 15) << 1) | ((chan & 16) >> 4),
		       devpriv->mite->daq_io_addr + AO_CHAN_OFFSET);
		/* write channel value */
		writel(data[i], devpriv->mite->daq_io_addr + AO_VALUE_OFFSET);
		devpriv->ao_readback[chan] = data[i];
	}

	return i;
}

static int ni_670x_ao_rinsn(struct comedi_device *dev,
			    struct comedi_subdevice *s,
			    struct comedi_insn *insn, unsigned int *data)
{
	struct ni_670x_private *devpriv = dev->private;
	int i;
	int chan = CR_CHAN(insn->chanspec);

	for (i = 0; i < insn->n; i++)
		data[i] = devpriv->ao_readback[chan];

	return i;
}

static int ni_670x_dio_insn_bits(struct comedi_device *dev,
				 struct comedi_subdevice *s,
				 struct comedi_insn *insn,
				 unsigned int *data)
{
	struct ni_670x_private *devpriv = dev->private;
	void __iomem *io_addr = devpriv->mite->daq_io_addr +
					DIO_PORT0_DATA_OFFSET;

	if (comedi_dio_update_state(s, data))
		writel(s->state, io_addr);

	data[1] = readl(io_addr);

	return insn->n;
}

static int ni_670x_dio_insn_config(struct comedi_device *dev,
				   struct comedi_subdevice *s,
				   struct comedi_insn *insn,
				   unsigned int *data)
{
	struct ni_670x_private *devpriv = dev->private;
	int ret;

	ret = comedi_dio_insn_config(dev, s, insn, data, 0);
	if (ret)
		return ret;

	writel(s->io_bits, devpriv->mite->daq_io_addr + DIO_PORT0_DIR_OFFSET);

	return insn->n;
}

static int ni_670x_auto_attach(struct comedi_device *dev,
			       unsigned long context)
{
	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
	const struct ni_670x_board *thisboard = NULL;
	struct ni_670x_private *devpriv;
	struct comedi_subdevice *s;
	int ret;
	int i;

	if (context < ARRAY_SIZE(ni_670x_boards))
		thisboard = &ni_670x_boards[context];
	if (!thisboard)
		return -ENODEV;
	dev->board_ptr = thisboard;
	dev->board_name = thisboard->name;

	ret = comedi_pci_enable(dev);
	if (ret)
		return ret;

	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
	if (!devpriv)
		return -ENOMEM;

	devpriv->mite = mite_alloc(pcidev);
	if (!devpriv->mite)
		return -ENOMEM;

	ret = mite_setup(devpriv->mite);
	if (ret < 0) {
		dev_warn(dev->class_dev, "error setting up mite\n");
		return ret;
	}

	ret = comedi_alloc_subdevices(dev, 2);
	if (ret)
		return ret;

	s = &dev->subdevices[0];
	/* analog output subdevice */
	s->type = COMEDI_SUBD_AO;
	s->subdev_flags = SDF_WRITABLE;
	s->n_chan = thisboard->ao_chans;
	s->maxdata = 0xffff;
	if (s->n_chan == 32) {
		const struct comedi_lrange **range_table_list;

		range_table_list = kmalloc(sizeof(struct comedi_lrange *) * 32,
					   GFP_KERNEL);
		if (!range_table_list)
			return -ENOMEM;
		s->range_table_list = range_table_list;
		for (i = 0; i < 16; i++) {
			range_table_list[i] = &range_bipolar10;
			range_table_list[16 + i] = &range_0_20mA;
		}
	} else {
		s->range_table = &range_bipolar10;
	}
	s->insn_write = &ni_670x_ao_winsn;
	s->insn_read = &ni_670x_ao_rinsn;

	s = &dev->subdevices[1];
	/* digital i/o subdevice */
	s->type = COMEDI_SUBD_DIO;
	s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
	s->n_chan = 8;
	s->maxdata = 1;
	s->range_table = &range_digital;
	s->insn_bits = ni_670x_dio_insn_bits;
	s->insn_config = ni_670x_dio_insn_config;

	/* Config of misc registers */
	writel(0x10, devpriv->mite->daq_io_addr + MISC_CONTROL_OFFSET);
	/* Config of ao registers */
	writel(0x00, devpriv->mite->daq_io_addr + AO_CONTROL_OFFSET);

	dev_info(dev->class_dev, "%s: %s attached\n",
		dev->driver->driver_name, dev->board_name);

	return 0;
}

static void ni_670x_detach(struct comedi_device *dev)
{
	struct ni_670x_private *devpriv = dev->private;
	struct comedi_subdevice *s;

	if (dev->n_subdevices) {
		s = &dev->subdevices[0];
		if (s)
			kfree(s->range_table_list);
	}
	if (devpriv && devpriv->mite) {
		mite_unsetup(devpriv->mite);
		mite_free(devpriv->mite);
	}
	comedi_pci_disable(dev);
}

static struct comedi_driver ni_670x_driver = {
	.driver_name	= "ni_670x",
	.module		= THIS_MODULE,
	.auto_attach	= ni_670x_auto_attach,
	.detach		= ni_670x_detach,
};

static int ni_670x_pci_probe(struct pci_dev *dev,
			     const struct pci_device_id *id)
{
	return comedi_pci_auto_config(dev, &ni_670x_driver, id->driver_data);
}

static DEFINE_PCI_DEVICE_TABLE(ni_670x_pci_table) = {
	{ PCI_VDEVICE(NI, 0x1290), BOARD_PCI6704 },
	{ PCI_VDEVICE(NI, 0x1920), BOARD_PXI6704 },
	{ PCI_VDEVICE(NI, 0x2c90), BOARD_PCI6703 },
	{ 0 }
};
MODULE_DEVICE_TABLE(pci, ni_670x_pci_table);

static struct pci_driver ni_670x_pci_driver = {
	.name		= "ni_670x",
	.id_table	= ni_670x_pci_table,
	.probe		= ni_670x_pci_probe,
	.remove		= comedi_pci_auto_unconfig,
};
module_comedi_pci_driver(ni_670x_driver, ni_670x_pci_driver);

MODULE_AUTHOR("Comedi http://www.comedi.org");
MODULE_DESCRIPTION("Comedi low-level driver");
MODULE_LICENSE("GPL");
Commit	Line	Data
3c5e1722 BJ	1	/*
	2	comedi/drivers/ni_670x.c
	3	Hardware driver for NI 670x devices
	4
	5	COMEDI - Linux Control and Measurement Device Interface
	6	Copyright (C) 1997-2001 David A. Schleef <ds@schleef.org>
	7
	8	This program is free software; you can redistribute it and/or modify
	9	it under the terms of the GNU General Public License as published by
	10	the Free Software Foundation; either version 2 of the License, or
	11	(at your option) any later version.
	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.
3c5e1722 BJ	17	*/
	18	/*
	19	Driver: ni_670x
	20	Description: National Instruments 670x
	21	Author: Bart Joris <bjoris@advalvas.be>
	22	Updated: Wed, 11 Dec 2002 18:25:35 -0800
	23	Devices: [National Instruments] PCI-6703 (ni_670x), PCI-6704
	24	Status: unknown
	25
	26	Commands are not supported.
	27	*/
	28
	29	/*
	30	Bart Joris <bjoris@advalvas.be> Last updated on 20/08/2001
	31
	32	Manuals:
	33
	34	322110a.pdf PCI/PXI-6704 User Manual
	35	322110b.pdf PCI/PXI-6703/6704 User Manual
	36
	37	*/
	38
ce157f80	39	#include <linux/module.h>
33782dd5	40	#include <linux/pci.h>
25436dc9	41	#include <linux/interrupt.h>
33782dd5	42
3c5e1722 BJ	43	#include "../comedidev.h"
	44
	45	#include "mite.h"
	46
3c5e1722 BJ	47	#define AO_VALUE_OFFSET 0x00
	48	#define AO_CHAN_OFFSET 0x0c
	49	#define AO_STATUS_OFFSET 0x10
	50	#define AO_CONTROL_OFFSET 0x10
	51	#define DIO_PORT0_DIR_OFFSET 0x20
	52	#define DIO_PORT0_DATA_OFFSET 0x24
	53	#define DIO_PORT1_DIR_OFFSET 0x28
	54	#define DIO_PORT1_DATA_OFFSET 0x2c
	55	#define MISC_STATUS_OFFSET 0x14
	56	#define MISC_CONTROL_OFFSET 0x14
	57
3bac78ca HS	58	enum ni_670x_boardid {
	59	BOARD_PCI6703,
	60	BOARD_PXI6704,
	61	BOARD_PCI6704,
	62	};
3c5e1722	63
43313b07	64	struct ni_670x_board {
3c5e1722 BJ	65	const char *name;
3c5e1722 BJ	66	unsigned short ao_chans;
43313b07 BP	67	};
	68
	69	static const struct ni_670x_board ni_670x_boards[] = {
3bac78ca	70	[BOARD_PCI6703] = {
04b136b6	71	.name = "PCI-6703",
04b136b6	72	.ao_chans = 16,
3bac78ca HS	73	},
3bac78ca HS	74	[BOARD_PXI6704] = {
04b136b6	75	.name = "PXI-6704",
04b136b6	76	.ao_chans = 32,
3bac78ca HS	77	},
3bac78ca HS	78	[BOARD_PCI6704] = {
04b136b6	79	.name = "PCI-6704",
04b136b6	80	.ao_chans = 32,
04b136b6	81	},
3c5e1722 BJ	82	};
3c5e1722 BJ	83
8ce8a1ff BP	84	struct ni_670x_private {
8ce8a1ff BP	85
3c5e1722 BJ	86	struct mite_struct *mite;
	87	int boardtype;
	88	int dio;
790c5541	89	unsigned int ao_readback[32];
8ce8a1ff BP	90	};
8ce8a1ff BP	91
0a85b6f0 MT	92	static int ni_670x_ao_winsn(struct comedi_device *dev,
	93	struct comedi_subdevice *s,
	94	struct comedi_insn insn, unsigned int data)
3c5e1722	95	{
289a4033	96	struct ni_670x_private *devpriv = dev->private;
3c5e1722 BJ	97	int i;
	98	int chan = CR_CHAN(insn->chanspec);
	99
	100	/* Channel number mapping :
	101
	102	NI 6703/ NI 6704 \| NI 6704 Only
	103	----------------------------------------------------
	104	vch(0) : 0 \| ich(16) : 1
	105	vch(1) : 2 \| ich(17) : 3
	106	. : . \| . .
	107	. : . \| . .
	108	. : . \| . .
	109	vch(15) : 30 \| ich(31) : 31 */
	110
	111	for (i = 0; i < insn->n; i++) {
c733110a BA	112	/* First write in channel register which channel to use */
	113	writel(((chan & 15) << 1) \| ((chan & 16) >> 4),
	114	devpriv->mite->daq_io_addr + AO_CHAN_OFFSET);
	115	/* write channel value */
	116	writel(data[i], devpriv->mite->daq_io_addr + AO_VALUE_OFFSET);
3c5e1722 BJ	117	devpriv->ao_readback[chan] = data[i];
	118	}
	119
	120	return i;
	121	}
	122
0a85b6f0 MT	123	static int ni_670x_ao_rinsn(struct comedi_device *dev,
	124	struct comedi_subdevice *s,
	125	struct comedi_insn insn, unsigned int data)
3c5e1722	126	{
289a4033	127	struct ni_670x_private *devpriv = dev->private;
3c5e1722 BJ	128	int i;
	129	int chan = CR_CHAN(insn->chanspec);
	130
	131	for (i = 0; i < insn->n; i++)
	132	data[i] = devpriv->ao_readback[chan];
	133
	134	return i;
	135	}
	136
0a85b6f0 MT	137	static int ni_670x_dio_insn_bits(struct comedi_device *dev,
0a85b6f0 MT	138	struct comedi_subdevice *s,
97f4289a HS	139	struct comedi_insn *insn,
97f4289a HS	140	unsigned int *data)
3c5e1722	141	{
289a4033	142	struct ni_670x_private *devpriv = dev->private;
ebbc0979 HS	143	void __iomem *io_addr = devpriv->mite->daq_io_addr +
ebbc0979 HS	144	DIO_PORT0_DATA_OFFSET;
ebbc0979	145
97f4289a	146	if (comedi_dio_update_state(s, data))
ebbc0979	147	writel(s->state, io_addr);
3c5e1722	148
ebbc0979	149	data[1] = readl(io_addr);
3c5e1722	150
a2714e3e	151	return insn->n;
3c5e1722 BJ	152	}
3c5e1722 BJ	153
0a85b6f0 MT	154	static int ni_670x_dio_insn_config(struct comedi_device *dev,
0a85b6f0 MT	155	struct comedi_subdevice *s,
ddf62f2c HS	156	struct comedi_insn *insn,
ddf62f2c HS	157	unsigned int *data)
3c5e1722	158	{
289a4033	159	struct ni_670x_private *devpriv = dev->private;
ddf62f2c HS	160	int ret;
	161
	162	ret = comedi_dio_insn_config(dev, s, insn, data, 0);
	163	if (ret)
	164	return ret;
3c5e1722	165
3c5e1722 BJ	166	writel(s->io_bits, devpriv->mite->daq_io_addr + DIO_PORT0_DIR_OFFSET);
	167
	168	return insn->n;
	169	}
	170
a690b7e5	171	static int ni_670x_auto_attach(struct comedi_device *dev,
3bac78ca	172	unsigned long context)
944a2f11	173	{
750af5e5	174	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
3bac78ca	175	const struct ni_670x_board *thisboard = NULL;
289a4033	176	struct ni_670x_private *devpriv;
944a2f11 HS	177	struct comedi_subdevice *s;
	178	int ret;
	179	int i;
	180
3bac78ca HS	181	if (context < ARRAY_SIZE(ni_670x_boards))
	182	thisboard = &ni_670x_boards[context];
	183	if (!thisboard)
	184	return -ENODEV;
	185	dev->board_ptr = thisboard;
	186	dev->board_name = thisboard->name;
	187
818f569f HS	188	ret = comedi_pci_enable(dev);
	189	if (ret)
	190	return ret;
818f569f	191
0bdab509	192	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
c34fa261 HS	193	if (!devpriv)
c34fa261 HS	194	return -ENOMEM;
9a1a6cf8	195
6bc42c22	196	devpriv->mite = mite_alloc(pcidev);
c33e23f7	197	if (!devpriv->mite)
6bc42c22	198	return -ENOMEM;
944a2f11 HS	199
	200	ret = mite_setup(devpriv->mite);
	201	if (ret < 0) {
b48ad330	202	dev_warn(dev->class_dev, "error setting up mite\n");
944a2f11 HS	203	return ret;
944a2f11 HS	204	}
944a2f11 HS	205
	206	ret = comedi_alloc_subdevices(dev, 2);
	207	if (ret)
	208	return ret;
	209
fc041c20	210	s = &dev->subdevices[0];
944a2f11 HS	211	/* analog output subdevice */
	212	s->type = COMEDI_SUBD_AO;
	213	s->subdev_flags = SDF_WRITABLE;
	214	s->n_chan = thisboard->ao_chans;
	215	s->maxdata = 0xffff;
	216	if (s->n_chan == 32) {
	217	const struct comedi_lrange **range_table_list;
	218
	219	range_table_list = kmalloc(sizeof(struct comedi_lrange ) 32,
	220	GFP_KERNEL);
	221	if (!range_table_list)
	222	return -ENOMEM;
	223	s->range_table_list = range_table_list;
	224	for (i = 0; i < 16; i++) {
	225	range_table_list[i] = &range_bipolar10;
	226	range_table_list[16 + i] = &range_0_20mA;
	227	}
	228	} else {
	229	s->range_table = &range_bipolar10;
	230	}
	231	s->insn_write = &ni_670x_ao_winsn;
	232	s->insn_read = &ni_670x_ao_rinsn;
	233
fc041c20	234	s = &dev->subdevices[1];
944a2f11 HS	235	/* digital i/o subdevice */
	236	s->type = COMEDI_SUBD_DIO;
	237	s->subdev_flags = SDF_READABLE \| SDF_WRITABLE;
	238	s->n_chan = 8;
	239	s->maxdata = 1;
	240	s->range_table = &range_digital;
	241	s->insn_bits = ni_670x_dio_insn_bits;
	242	s->insn_config = ni_670x_dio_insn_config;
	243
	244	/* Config of misc registers */
	245	writel(0x10, devpriv->mite->daq_io_addr + MISC_CONTROL_OFFSET);
	246	/* Config of ao registers */
	247	writel(0x00, devpriv->mite->daq_io_addr + AO_CONTROL_OFFSET);
	248
b48ad330 HS	249	dev_info(dev->class_dev, "%s: %s attached\n",
b48ad330 HS	250	dev->driver->driver_name, dev->board_name);
944a2f11	251
464c9451	252	return 0;
944a2f11 HS	253	}
	254
	255	static void ni_670x_detach(struct comedi_device *dev)
	256	{
289a4033	257	struct ni_670x_private *devpriv = dev->private;
70fcd1b7	258	struct comedi_subdevice *s;
289a4033	259
70fcd1b7	260	if (dev->n_subdevices) {
fc041c20	261	s = &dev->subdevices[0];
70fcd1b7 HS	262	if (s)
	263	kfree(s->range_table_list);
	264	}
6bc42c22	265	if (devpriv && devpriv->mite) {
944a2f11	266	mite_unsetup(devpriv->mite);
6bc42c22 IA	267	mite_free(devpriv->mite);
6bc42c22 IA	268	}
7f072f54	269	comedi_pci_disable(dev);
944a2f11 HS	270	}
944a2f11 HS	271
6f37e288 HS	272	static struct comedi_driver ni_670x_driver = {
	273	.driver_name = "ni_670x",
	274	.module = THIS_MODULE,
750af5e5	275	.auto_attach = ni_670x_auto_attach,
6f37e288 HS	276	.detach = ni_670x_detach,
	277	};
	278
a690b7e5	279	static int ni_670x_pci_probe(struct pci_dev *dev,
b8f4ac23	280	const struct pci_device_id *id)
6f37e288	281	{
b8f4ac23	282	return comedi_pci_auto_config(dev, &ni_670x_driver, id->driver_data);
6f37e288 HS	283	}
6f37e288 HS	284
6f37e288	285	static DEFINE_PCI_DEVICE_TABLE(ni_670x_pci_table) = {
3bac78ca HS	286	{ PCI_VDEVICE(NI, 0x1290), BOARD_PCI6704 },
	287	{ PCI_VDEVICE(NI, 0x1920), BOARD_PXI6704 },
	288	{ PCI_VDEVICE(NI, 0x2c90), BOARD_PCI6703 },
6f37e288 HS	289	{ 0 }
	290	};
	291	MODULE_DEVICE_TABLE(pci, ni_670x_pci_table);
	292
	293	static struct pci_driver ni_670x_pci_driver = {
9e4edd57	294	.name = "ni_670x",
6f37e288 HS	295	.id_table = ni_670x_pci_table,
6f37e288 HS	296	.probe = ni_670x_pci_probe,
9901a4d7	297	.remove = comedi_pci_auto_unconfig,
6f37e288 HS	298	};
	299	module_comedi_pci_driver(ni_670x_driver, ni_670x_pci_driver);
	300
3c323c01 IA	301	MODULE_AUTHOR("Comedi http://www.comedi.org");
	302	MODULE_DESCRIPTION("Comedi low-level driver");
	303	MODULE_LICENSE("GPL");