[linux-2.6-block.git] / drivers / staging / comedi / drivers / adl_pci7x3x.c

/*
 * COMEDI driver for the ADLINK PCI-723x/743x series boards.
 * Copyright (C) 2012 H Hartley Sweeten <hsweeten@visionengravers.com>
 *
 * Based on the adl_pci7230 driver written by:
 *	David Fernandez <dfcastelao@gmail.com>
 * and the adl_pci7432 driver written by:
 *	Michel Lachaine <mike@mikelachaine.ca>
 *
 * COMEDI - Linux Control and Measurement Device Interface
 * Copyright (C) 2000 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: adl_pci7x3x
 * Description: 32/64-Channel Isolated Digital I/O Boards
 * Devices: [ADLink] PCI-7230 (adl_pci7230), PCI-7233 (adl_pci7233),
 *   PCI-7234 (adl_pci7234), PCI-7432 (adl_pci7432), PCI-7433 (adl_pci7433),
 *   PCI-7434 (adl_pci7434)
 * Author: H Hartley Sweeten <hsweeten@visionengravers.com>
 * Updated: Thu, 02 Aug 2012 14:27:46 -0700
 * Status: untested
 *
 * One or two subdevices are setup by this driver depending on
 * the number of digital inputs and/or outputs provided by the
 * board. Each subdevice has a maximum of 32 channels.
 *
 *	PCI-7230 - 2 subdevices: 0 - 16 input, 1 - 16 output
 *	PCI-7233 - 1 subdevice: 0 - 32 input
 *	PCI-7234 - 1 subdevice: 0 - 32 output
 *	PCI-7432 - 2 subdevices: 0 - 32 input, 1 - 32 output
 *	PCI-7433 - 2 subdevices: 0 - 32 input, 1 - 32 input
 *	PCI-7434 - 2 subdevices: 0 - 32 output, 1 - 32 output
 *
 * The PCI-7230, PCI-7432 and PCI-7433 boards also support external
 * interrupt signals on digital input channels 0 and 1. The PCI-7233
 * has dual-interrupt sources for change-of-state (COS) on any 16
 * digital input channels of LSB and for COS on any 16 digital input
 * lines of MSB. Interrupts are not currently supported by this
 * driver.
 *
 * Configuration Options: not applicable, uses comedi PCI auto config
 */

#include <linux/module.h>

#include "../comedi_pci.h"

/*
 * Register I/O map (32-bit access only)
 */
#define PCI7X3X_DIO_REG		0x00
#define PCI743X_DIO_REG		0x04

enum apci1516_boardid {
	BOARD_PCI7230,
	BOARD_PCI7233,
	BOARD_PCI7234,
	BOARD_PCI7432,
	BOARD_PCI7433,
	BOARD_PCI7434,
};

struct adl_pci7x3x_boardinfo {
	const char *name;
	int nsubdevs;
	int di_nchan;
	int do_nchan;
};

static const struct adl_pci7x3x_boardinfo adl_pci7x3x_boards[] = {
	[BOARD_PCI7230] = {
		.name		= "adl_pci7230",
		.nsubdevs	= 2,
		.di_nchan	= 16,
		.do_nchan	= 16,
	},
	[BOARD_PCI7233] = {
		.name		= "adl_pci7233",
		.nsubdevs	= 1,
		.di_nchan	= 32,
	},
	[BOARD_PCI7234] = {
		.name		= "adl_pci7234",
		.nsubdevs	= 1,
		.do_nchan	= 32,
	},
	[BOARD_PCI7432] = {
		.name		= "adl_pci7432",
		.nsubdevs	= 2,
		.di_nchan	= 32,
		.do_nchan	= 32,
	},
	[BOARD_PCI7433] = {
		.name		= "adl_pci7433",
		.nsubdevs	= 2,
		.di_nchan	= 64,
	},
	[BOARD_PCI7434] = {
		.name		= "adl_pci7434",
		.nsubdevs	= 2,
		.do_nchan	= 64,
	}
};

static int adl_pci7x3x_do_insn_bits(struct comedi_device *dev,
				    struct comedi_subdevice *s,
				    struct comedi_insn *insn,
				    unsigned int *data)
{
	unsigned long reg = (unsigned long)s->private;

	if (comedi_dio_update_state(s, data)) {
		unsigned int val = s->state;

		if (s->n_chan == 16) {
			/*
			 * It seems the PCI-7230 needs the 16-bit DO state
			 * to be shifted left by 16 bits before being written
			 * to the 32-bit register.  Set the value in both
			 * halves of the register to be sure.
			 */
			val |= val << 16;
		}
		outl(val, dev->iobase + reg);
	}

	data[1] = s->state;

	return insn->n;
}

static int adl_pci7x3x_di_insn_bits(struct comedi_device *dev,
				    struct comedi_subdevice *s,
				    struct comedi_insn *insn,
				    unsigned int *data)
{
	unsigned long reg = (unsigned long)s->private;

	data[1] = inl(dev->iobase + reg);

	return insn->n;
}

static int adl_pci7x3x_auto_attach(struct comedi_device *dev,
				   unsigned long context)
{
	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
	const struct adl_pci7x3x_boardinfo *board = NULL;
	struct comedi_subdevice *s;
	int subdev;
	int nchan;
	int ret;

	if (context < ARRAY_SIZE(adl_pci7x3x_boards))
		board = &adl_pci7x3x_boards[context];
	if (!board)
		return -ENODEV;
	dev->board_ptr = board;
	dev->board_name = board->name;

	ret = comedi_pci_enable(dev);
	if (ret)
		return ret;
	dev->iobase = pci_resource_start(pcidev, 2);

	ret = comedi_alloc_subdevices(dev, board->nsubdevs);
	if (ret)
		return ret;

	subdev = 0;

	if (board->di_nchan) {
		nchan = min(board->di_nchan, 32);

		s = &dev->subdevices[subdev];
		/* Isolated digital inputs 0 to 15/31 */
		s->type		= COMEDI_SUBD_DI;
		s->subdev_flags	= SDF_READABLE;
		s->n_chan	= nchan;
		s->maxdata	= 1;
		s->insn_bits	= adl_pci7x3x_di_insn_bits;
		s->range_table	= &range_digital;

		s->private	= (void *)PCI7X3X_DIO_REG;

		subdev++;

		nchan = board->di_nchan - nchan;
		if (nchan) {
			s = &dev->subdevices[subdev];
			/* Isolated digital inputs 32 to 63 */
			s->type		= COMEDI_SUBD_DI;
			s->subdev_flags	= SDF_READABLE;
			s->n_chan	= nchan;
			s->maxdata	= 1;
			s->insn_bits	= adl_pci7x3x_di_insn_bits;
			s->range_table	= &range_digital;

			s->private	= (void *)PCI743X_DIO_REG;

			subdev++;
		}
	}

	if (board->do_nchan) {
		nchan = min(board->do_nchan, 32);

		s = &dev->subdevices[subdev];
		/* Isolated digital outputs 0 to 15/31 */
		s->type		= COMEDI_SUBD_DO;
		s->subdev_flags	= SDF_WRITABLE;
		s->n_chan	= nchan;
		s->maxdata	= 1;
		s->insn_bits	= adl_pci7x3x_do_insn_bits;
		s->range_table	= &range_digital;

		s->private	= (void *)PCI7X3X_DIO_REG;

		subdev++;

		nchan = board->do_nchan - nchan;
		if (nchan) {
			s = &dev->subdevices[subdev];
			/* Isolated digital outputs 32 to 63 */
			s->type		= COMEDI_SUBD_DO;
			s->subdev_flags	= SDF_WRITABLE;
			s->n_chan	= nchan;
			s->maxdata	= 1;
			s->insn_bits	= adl_pci7x3x_do_insn_bits;
			s->range_table	= &range_digital;

			s->private	= (void *)PCI743X_DIO_REG;

			subdev++;
		}
	}

	return 0;
}

static struct comedi_driver adl_pci7x3x_driver = {
	.driver_name	= "adl_pci7x3x",
	.module		= THIS_MODULE,
	.auto_attach	= adl_pci7x3x_auto_attach,
	.detach		= comedi_pci_detach,
};

static int adl_pci7x3x_pci_probe(struct pci_dev *dev,
				 const struct pci_device_id *id)
{
	return comedi_pci_auto_config(dev, &adl_pci7x3x_driver,
				      id->driver_data);
}

static const struct pci_device_id adl_pci7x3x_pci_table[] = {
	{ PCI_VDEVICE(ADLINK, 0x7230), BOARD_PCI7230 },
	{ PCI_VDEVICE(ADLINK, 0x7233), BOARD_PCI7233 },
	{ PCI_VDEVICE(ADLINK, 0x7234), BOARD_PCI7234 },
	{ PCI_VDEVICE(ADLINK, 0x7432), BOARD_PCI7432 },
	{ PCI_VDEVICE(ADLINK, 0x7433), BOARD_PCI7433 },
	{ PCI_VDEVICE(ADLINK, 0x7434), BOARD_PCI7434 },
	{ 0 }
};
MODULE_DEVICE_TABLE(pci, adl_pci7x3x_pci_table);

static struct pci_driver adl_pci7x3x_pci_driver = {
	.name		= "adl_pci7x3x",
	.id_table	= adl_pci7x3x_pci_table,
	.probe		= adl_pci7x3x_pci_probe,
	.remove		= comedi_pci_auto_unconfig,
};
module_comedi_pci_driver(adl_pci7x3x_driver, adl_pci7x3x_pci_driver);

MODULE_DESCRIPTION("ADLINK PCI-723x/743x Isolated Digital I/O boards");
MODULE_AUTHOR("H Hartley Sweeten <hsweeten@visionengravers.com>");
MODULE_LICENSE("GPL");
Commit	Line	Data
8f567c37 HS	1	/*
	2	* COMEDI driver for the ADLINK PCI-723x/743x series boards.
	3	* Copyright (C) 2012 H Hartley Sweeten <hsweeten@visionengravers.com>
	4	*
	5	* Based on the adl_pci7230 driver written by:
	6	* David Fernandez <dfcastelao@gmail.com>
	7	* and the adl_pci7432 driver written by:
	8	* Michel Lachaine <mike@mikelachaine.ca>
	9	*
	10	* COMEDI - Linux Control and Measurement Device Interface
	11	* Copyright (C) 2000 David A. Schleef <ds@schleef.org>
	12	*
	13	* This program is free software; you can redistribute it and/or modify
	14	* it under the terms of the GNU General Public License as published by
	15	* the Free Software Foundation; either version 2 of the License, or
	16	* (at your option) any later version.
	17	*
	18	* This program is distributed in the hope that it will be useful,
	19	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	20	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	21	* GNU General Public License for more details.
8f567c37 HS	22	*/
	23
	24	/*
cd44161e IA	25	* Driver: adl_pci7x3x
	26	* Description: 32/64-Channel Isolated Digital I/O Boards
	27	* Devices: [ADLink] PCI-7230 (adl_pci7230), PCI-7233 (adl_pci7233),
	28	* PCI-7234 (adl_pci7234), PCI-7432 (adl_pci7432), PCI-7433 (adl_pci7433),
	29	* PCI-7434 (adl_pci7434)
	30	* Author: H Hartley Sweeten <hsweeten@visionengravers.com>
	31	* Updated: Thu, 02 Aug 2012 14:27:46 -0700
	32	* Status: untested
	33	*
	34	* One or two subdevices are setup by this driver depending on
	35	* the number of digital inputs and/or outputs provided by the
	36	* board. Each subdevice has a maximum of 32 channels.
	37	*
	38	* PCI-7230 - 2 subdevices: 0 - 16 input, 1 - 16 output
	39	* PCI-7233 - 1 subdevice: 0 - 32 input
	40	* PCI-7234 - 1 subdevice: 0 - 32 output
	41	* PCI-7432 - 2 subdevices: 0 - 32 input, 1 - 32 output
	42	* PCI-7433 - 2 subdevices: 0 - 32 input, 1 - 32 input
	43	* PCI-7434 - 2 subdevices: 0 - 32 output, 1 - 32 output
	44	*
	45	* The PCI-7230, PCI-7432 and PCI-7433 boards also support external
	46	* interrupt signals on digital input channels 0 and 1. The PCI-7233
	47	* has dual-interrupt sources for change-of-state (COS) on any 16
	48	* digital input channels of LSB and for COS on any 16 digital input
	49	* lines of MSB. Interrupts are not currently supported by this
	50	* driver.
	51	*
	52	* Configuration Options: not applicable, uses comedi PCI auto config
	53	*/
8f567c37	54
ce157f80	55	#include <linux/module.h>
33782dd5	56
28b57484	57	#include "../comedi_pci.h"
8f567c37	58
8f567c37 HS	59	/*
	60	* Register I/O map (32-bit access only)
	61	*/
	62	#define PCI7X3X_DIO_REG 0x00
	63	#define PCI743X_DIO_REG 0x04
	64
b5357e61 HS	65	enum apci1516_boardid {
	66	BOARD_PCI7230,
	67	BOARD_PCI7233,
	68	BOARD_PCI7234,
	69	BOARD_PCI7432,
	70	BOARD_PCI7433,
	71	BOARD_PCI7434,
	72	};
	73
8f567c37 HS	74	struct adl_pci7x3x_boardinfo {
8f567c37 HS	75	const char *name;
8f567c37 HS	76	int nsubdevs;
	77	int di_nchan;
	78	int do_nchan;
	79	};
	80
	81	static const struct adl_pci7x3x_boardinfo adl_pci7x3x_boards[] = {
b5357e61	82	[BOARD_PCI7230] = {
8f567c37	83	.name = "adl_pci7230",
8f567c37 HS	84	.nsubdevs = 2,
	85	.di_nchan = 16,
	86	.do_nchan = 16,
b5357e61 HS	87	},
b5357e61 HS	88	[BOARD_PCI7233] = {
8f567c37	89	.name = "adl_pci7233",
8f567c37 HS	90	.nsubdevs = 1,
8f567c37 HS	91	.di_nchan = 32,
b5357e61 HS	92	},
b5357e61 HS	93	[BOARD_PCI7234] = {
8f567c37	94	.name = "adl_pci7234",
8f567c37 HS	95	.nsubdevs = 1,
8f567c37 HS	96	.do_nchan = 32,
b5357e61 HS	97	},
b5357e61 HS	98	[BOARD_PCI7432] = {
8f567c37	99	.name = "adl_pci7432",
8f567c37 HS	100	.nsubdevs = 2,
	101	.di_nchan = 32,
	102	.do_nchan = 32,
b5357e61 HS	103	},
b5357e61 HS	104	[BOARD_PCI7433] = {
8f567c37	105	.name = "adl_pci7433",
8f567c37 HS	106	.nsubdevs = 2,
8f567c37 HS	107	.di_nchan = 64,
b5357e61 HS	108	},
b5357e61 HS	109	[BOARD_PCI7434] = {
8f567c37	110	.name = "adl_pci7434",
8f567c37 HS	111	.nsubdevs = 2,
	112	.do_nchan = 64,
	113	}
	114	};
	115
	116	static int adl_pci7x3x_do_insn_bits(struct comedi_device *dev,
	117	struct comedi_subdevice *s,
	118	struct comedi_insn *insn,
	119	unsigned int *data)
	120	{
69af5997	121	unsigned long reg = (unsigned long)s->private;
8f567c37	122
ad83dbd9 IA	123	if (comedi_dio_update_state(s, data)) {
	124	unsigned int val = s->state;
	125
	126	if (s->n_chan == 16) {
	127	/*
	128	* It seems the PCI-7230 needs the 16-bit DO state
	129	* to be shifted left by 16 bits before being written
	130	* to the 32-bit register. Set the value in both
	131	* halves of the register to be sure.
	132	*/
	133	val \|= val << 16;
	134	}
	135	outl(val, dev->iobase + reg);
	136	}
8f567c37	137
8f567c37 HS	138	data[1] = s->state;
	139
	140	return insn->n;
	141	}
	142
	143	static int adl_pci7x3x_di_insn_bits(struct comedi_device *dev,
	144	struct comedi_subdevice *s,
	145	struct comedi_insn *insn,
	146	unsigned int *data)
	147	{
69af5997	148	unsigned long reg = (unsigned long)s->private;
8f567c37 HS	149
	150	data[1] = inl(dev->iobase + reg);
	151
	152	return insn->n;
	153	}
	154
a690b7e5	155	static int adl_pci7x3x_auto_attach(struct comedi_device *dev,
b5357e61	156	unsigned long context)
8f567c37	157	{
750af5e5	158	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
b5357e61	159	const struct adl_pci7x3x_boardinfo *board = NULL;
8f567c37 HS	160	struct comedi_subdevice *s;
	161	int subdev;
	162	int nchan;
	163	int ret;
	164
b5357e61 HS	165	if (context < ARRAY_SIZE(adl_pci7x3x_boards))
b5357e61 HS	166	board = &adl_pci7x3x_boards[context];
8f567c37 HS	167	if (!board)
	168	return -ENODEV;
	169	dev->board_ptr = board;
	170	dev->board_name = board->name;
	171
818f569f	172	ret = comedi_pci_enable(dev);
8f567c37 HS	173	if (ret)
	174	return ret;
	175	dev->iobase = pci_resource_start(pcidev, 2);
	176
8f567c37 HS	177	ret = comedi_alloc_subdevices(dev, board->nsubdevs);
	178	if (ret)
	179	return ret;
	180
	181	subdev = 0;
	182
	183	if (board->di_nchan) {
	184	nchan = min(board->di_nchan, 32);
	185
2bac8ab3	186	s = &dev->subdevices[subdev];
8f567c37 HS	187	/* Isolated digital inputs 0 to 15/31 */
	188	s->type = COMEDI_SUBD_DI;
	189	s->subdev_flags = SDF_READABLE;
	190	s->n_chan = nchan;
	191	s->maxdata = 1;
	192	s->insn_bits = adl_pci7x3x_di_insn_bits;
	193	s->range_table = &range_digital;
	194
	195	s->private = (void *)PCI7X3X_DIO_REG;
	196
	197	subdev++;
	198
	199	nchan = board->di_nchan - nchan;
	200	if (nchan) {
2bac8ab3	201	s = &dev->subdevices[subdev];
8f567c37 HS	202	/* Isolated digital inputs 32 to 63 */
	203	s->type = COMEDI_SUBD_DI;
	204	s->subdev_flags = SDF_READABLE;
	205	s->n_chan = nchan;
	206	s->maxdata = 1;
	207	s->insn_bits = adl_pci7x3x_di_insn_bits;
	208	s->range_table = &range_digital;
	209
	210	s->private = (void *)PCI743X_DIO_REG;
	211
	212	subdev++;
	213	}
	214	}
	215
	216	if (board->do_nchan) {
	217	nchan = min(board->do_nchan, 32);
	218
2bac8ab3	219	s = &dev->subdevices[subdev];
8f567c37 HS	220	/* Isolated digital outputs 0 to 15/31 */
	221	s->type = COMEDI_SUBD_DO;
	222	s->subdev_flags = SDF_WRITABLE;
	223	s->n_chan = nchan;
	224	s->maxdata = 1;
	225	s->insn_bits = adl_pci7x3x_do_insn_bits;
	226	s->range_table = &range_digital;
	227
	228	s->private = (void *)PCI7X3X_DIO_REG;
	229
	230	subdev++;
	231
	232	nchan = board->do_nchan - nchan;
	233	if (nchan) {
2bac8ab3	234	s = &dev->subdevices[subdev];
8f567c37 HS	235	/* Isolated digital outputs 32 to 63 */
	236	s->type = COMEDI_SUBD_DO;
	237	s->subdev_flags = SDF_WRITABLE;
	238	s->n_chan = nchan;
	239	s->maxdata = 1;
	240	s->insn_bits = adl_pci7x3x_do_insn_bits;
	241	s->range_table = &range_digital;
	242
	243	s->private = (void *)PCI743X_DIO_REG;
	244
	245	subdev++;
	246	}
	247	}
	248
8f567c37 HS	249	return 0;
	250	}
	251
8f567c37 HS	252	static struct comedi_driver adl_pci7x3x_driver = {
	253	.driver_name = "adl_pci7x3x",
	254	.module = THIS_MODULE,
750af5e5	255	.auto_attach = adl_pci7x3x_auto_attach,
aac307f9	256	.detach = comedi_pci_detach,
8f567c37 HS	257	};
8f567c37 HS	258
a690b7e5	259	static int adl_pci7x3x_pci_probe(struct pci_dev *dev,
b8f4ac23	260	const struct pci_device_id *id)
8f567c37	261	{
b8f4ac23 HS	262	return comedi_pci_auto_config(dev, &adl_pci7x3x_driver,
b8f4ac23 HS	263	id->driver_data);
8f567c37 HS	264	}
8f567c37 HS	265
41e043fc	266	static const struct pci_device_id adl_pci7x3x_pci_table[] = {
b5357e61 HS	267	{ PCI_VDEVICE(ADLINK, 0x7230), BOARD_PCI7230 },
	268	{ PCI_VDEVICE(ADLINK, 0x7233), BOARD_PCI7233 },
	269	{ PCI_VDEVICE(ADLINK, 0x7234), BOARD_PCI7234 },
	270	{ PCI_VDEVICE(ADLINK, 0x7432), BOARD_PCI7432 },
	271	{ PCI_VDEVICE(ADLINK, 0x7433), BOARD_PCI7433 },
	272	{ PCI_VDEVICE(ADLINK, 0x7434), BOARD_PCI7434 },
8f567c37 HS	273	{ 0 }
	274	};
	275	MODULE_DEVICE_TABLE(pci, adl_pci7x3x_pci_table);
	276
	277	static struct pci_driver adl_pci7x3x_pci_driver = {
	278	.name = "adl_pci7x3x",
	279	.id_table = adl_pci7x3x_pci_table,
	280	.probe = adl_pci7x3x_pci_probe,
9901a4d7	281	.remove = comedi_pci_auto_unconfig,
8f567c37 HS	282	};
	283	module_comedi_pci_driver(adl_pci7x3x_driver, adl_pci7x3x_pci_driver);
	284
	285	MODULE_DESCRIPTION("ADLINK PCI-723x/743x Isolated Digital I/O boards");
	286	MODULE_AUTHOR("H Hartley Sweeten <hsweeten@visionengravers.com>");
	287	MODULE_LICENSE("GPL");