[deliverable/linux.git] / drivers / staging / comedi / drivers / adl_pci6208.c

/*
    comedi/drivers/adl_pci6208.c

    Hardware driver for ADLink 6208 series cards:
	card	     | voltage output    | current output
	-------------+-------------------+---------------
	PCI-6208V    |  8 channels       | -
	PCI-6216V    | 16 channels       | -
	PCI-6208A    |  8 channels       | 8 channels

    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.

    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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
Driver: adl_pci6208
Description: ADLink PCI-6208/6216 Series Multi-channel Analog Output Cards
Devices: (ADLink) PCI-6208 [adl_pci6208]
	 (ADLink) PCI-6216 [adl_pci6216]
Author: nsyeow <nsyeow@pd.jaring.my>
Updated: Fri, 30 Jan 2004 14:44:27 +0800
Status: untested

Configuration Options: not applicable, uses PCI auto config

References:
	- ni_660x.c
	- adl_pci9111.c		copied the entire pci setup section
	- adl_pci9118.c
*/

#include <linux/pci.h>

#include "../comedidev.h"

/*
 * PCI-6208/6216-GL register map
 */
#define PCI6208_AO_CONTROL(x)		(0x00 + (2 * (x)))
#define PCI6208_AO_STATUS		0x00
#define PCI6208_AO_STATUS_DATA_SEND	(1 << 0)
#define PCI6208_DIO			0x40
#define PCI6208_DIO_DO_MASK		(0x0f)
#define PCI6208_DIO_DO_SHIFT		(0)
#define PCI6208_DIO_DI_MASK		(0xf0)
#define PCI6208_DIO_DI_SHIFT		(4)

#define PCI6208_MAX_AO_CHANNELS		16

enum pci6208_boardid {
	BOARD_PCI6208,
	BOARD_PCI6216,
};

struct pci6208_board {
	const char *name;
	int ao_chans;
};

static const struct pci6208_board pci6208_boards[] = {
	[BOARD_PCI6208] = {
		.name		= "adl_pci6208",
		.ao_chans	= 8,
	},
	[BOARD_PCI6216] = {
		.name		= "adl_pci6216",
		.ao_chans	= 16,
	},
};

struct pci6208_private {
	unsigned int ao_readback[PCI6208_MAX_AO_CHANNELS];
};

static int pci6208_ao_winsn(struct comedi_device *dev,
			    struct comedi_subdevice *s,
			    struct comedi_insn *insn, unsigned int *data)
{
	struct pci6208_private *devpriv = dev->private;
	int chan = CR_CHAN(insn->chanspec);
	unsigned long invert = 1 << (16 - 1);
	unsigned long value = 0;
	unsigned short status;
	int i;

	for (i = 0; i < insn->n; i++) {
		value = data[i] ^ invert;

		do {
			status = inw(dev->iobase + PCI6208_AO_STATUS);
		} while (status & PCI6208_AO_STATUS_DATA_SEND);

		outw(value, dev->iobase + PCI6208_AO_CONTROL(chan));
	}
	devpriv->ao_readback[chan] = value;

	return insn->n;
}

static int pci6208_ao_rinsn(struct comedi_device *dev,
			    struct comedi_subdevice *s,
			    struct comedi_insn *insn, unsigned int *data)
{
	struct pci6208_private *devpriv = dev->private;
	int chan = CR_CHAN(insn->chanspec);
	int i;

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

	return insn->n;
}

static int pci6208_di_insn_bits(struct comedi_device *dev,
				struct comedi_subdevice *s,
				struct comedi_insn *insn,
				unsigned int *data)
{
	unsigned int val;

	val = inw(dev->iobase + PCI6208_DIO);
	val = (val & PCI6208_DIO_DI_MASK) >> PCI6208_DIO_DI_SHIFT;

	data[1] = val;

	return insn->n;
}

static int pci6208_do_insn_bits(struct comedi_device *dev,
				struct comedi_subdevice *s,
				struct comedi_insn *insn,
				unsigned int *data)
{
	unsigned int mask = data[0];
	unsigned int bits = data[1];

	if (mask) {
		s->state &= ~mask;
		s->state |= (bits & mask);

		outw(s->state, dev->iobase + PCI6208_DIO);
	}

	data[1] = s->state;

	return insn->n;
}

static int pci6208_auto_attach(struct comedi_device *dev,
			       unsigned long context)
{
	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
	const struct pci6208_board *boardinfo = NULL;
	struct pci6208_private *devpriv;
	struct comedi_subdevice *s;
	unsigned int val;
	int ret;

	if (context < ARRAY_SIZE(pci6208_boards))
		boardinfo = &pci6208_boards[context];
	if (!boardinfo)
		return -ENODEV;
	dev->board_ptr = boardinfo;
	dev->board_name = boardinfo->name;

	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
	if (!devpriv)
		return -ENOMEM;
	dev->private = devpriv;

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

	ret = comedi_alloc_subdevices(dev, 3);
	if (ret)
		return ret;

	s = &dev->subdevices[0];
	/* analog output subdevice */
	s->type		= COMEDI_SUBD_AO;
	s->subdev_flags	= SDF_WRITABLE;
	s->n_chan	= boardinfo->ao_chans;
	s->maxdata	= 0xffff;
	s->range_table	= &range_bipolar10;
	s->insn_write	= pci6208_ao_winsn;
	s->insn_read	= pci6208_ao_rinsn;

	s = &dev->subdevices[1];
	/* digital input subdevice */
	s->type		= COMEDI_SUBD_DI;
	s->subdev_flags	= SDF_READABLE;
	s->n_chan	= 4;
	s->maxdata	= 1;
	s->range_table	= &range_digital;
	s->insn_bits	= pci6208_di_insn_bits;

	s = &dev->subdevices[2];
	/* digital output subdevice */
	s->type		= COMEDI_SUBD_DO;
	s->subdev_flags	= SDF_WRITABLE;
	s->n_chan	= 4;
	s->maxdata	= 1;
	s->range_table	= &range_digital;
	s->insn_bits	= pci6208_do_insn_bits;

	/*
	 * Get the read back signals from the digital outputs
	 * and save it as the initial state for the subdevice.
	 */
	val = inw(dev->iobase + PCI6208_DIO);
	val = (val & PCI6208_DIO_DO_MASK) >> PCI6208_DIO_DO_SHIFT;
	s->state	= val;
	s->io_bits	= 0x0f;

	dev_info(dev->class_dev, "%s: %s, I/O base=0x%04lx\n",
		dev->driver->driver_name, dev->board_name, dev->iobase);

	return 0;
}

static struct comedi_driver adl_pci6208_driver = {
	.driver_name	= "adl_pci6208",
	.module		= THIS_MODULE,
	.auto_attach	= pci6208_auto_attach,
	.detach		= comedi_pci_disable,
};

static int adl_pci6208_pci_probe(struct pci_dev *dev,
				 const struct pci_device_id *id)
{
	return comedi_pci_auto_config(dev, &adl_pci6208_driver,
				      id->driver_data);
}

static DEFINE_PCI_DEVICE_TABLE(adl_pci6208_pci_table) = {
	{ PCI_VDEVICE(ADLINK, 0x6208), BOARD_PCI6208 },
	{ PCI_VDEVICE(ADLINK, 0x6216), BOARD_PCI6216 },
	{ 0 }
};
MODULE_DEVICE_TABLE(pci, adl_pci6208_pci_table);

static struct pci_driver adl_pci6208_pci_driver = {
	.name		= "adl_pci6208",
	.id_table	= adl_pci6208_pci_table,
	.probe		= adl_pci6208_pci_probe,
	.remove		= comedi_pci_auto_unconfig,
};
module_comedi_pci_driver(adl_pci6208_driver, adl_pci6208_pci_driver);

MODULE_AUTHOR("Comedi http://www.comedi.org");
MODULE_DESCRIPTION("Comedi low-level driver");
MODULE_LICENSE("GPL");
Commit	Line	Data
8b93f903	1	/*
	2	comedi/drivers/adl_pci6208.c
	3
	4	Hardware driver for ADLink 6208 series cards:
	5	card \| voltage output \| current output
	6	-------------+-------------------+---------------
	7	PCI-6208V \| 8 channels \| -
	8	PCI-6216V \| 16 channels \| -
	9	PCI-6208A \| 8 channels \| 8 channels
	10
	11	COMEDI - Linux Control and Measurement Device Interface
	12	Copyright (C) 2000 David A. Schleef <ds@schleef.org>
	13
	14	This program is free software; you can redistribute it and/or modify
	15	it under the terms of the GNU General Public License as published by
	16	the Free Software Foundation; either version 2 of the License, or
	17	(at your option) any later version.
	18
	19	This program is distributed in the hope that it will be useful,
	20	but WITHOUT ANY WARRANTY; without even the implied warranty of
	21	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	22	GNU General Public License for more details.
	23
	24	You should have received a copy of the GNU General Public License
	25	along with this program; if not, write to the Free Software
	26	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	27	*/
	28	/*
	29	Driver: adl_pci6208
0a1e6c1f HS	30	Description: ADLink PCI-6208/6216 Series Multi-channel Analog Output Cards
	31	Devices: (ADLink) PCI-6208 [adl_pci6208]
	32	(ADLink) PCI-6216 [adl_pci6216]
8b93f903	33	Author: nsyeow <nsyeow@pd.jaring.my>
	34	Updated: Fri, 30 Jan 2004 14:44:27 +0800
	35	Status: untested
	36
744a8398	37	Configuration Options: not applicable, uses PCI auto config
8b93f903	38
	39	References:
	40	- ni_660x.c
	41	- adl_pci9111.c copied the entire pci setup section
	42	- adl_pci9118.c
	43	*/
a7c6de4c	44
33782dd5 HS	45	#include <linux/pci.h>
33782dd5 HS	46
8b93f903	47	#include "../comedidev.h"
8b93f903	48
7b6afad1 HS	49	/*
	50	* PCI-6208/6216-GL register map
	51	*/
	52	#define PCI6208_AO_CONTROL(x) (0x00 + (2 * (x)))
	53	#define PCI6208_AO_STATUS 0x00
	54	#define PCI6208_AO_STATUS_DATA_SEND (1 << 0)
	55	#define PCI6208_DIO 0x40
	56	#define PCI6208_DIO_DO_MASK (0x0f)
	57	#define PCI6208_DIO_DO_SHIFT (0)
	58	#define PCI6208_DIO_DI_MASK (0xf0)
	59	#define PCI6208_DIO_DI_SHIFT (4)
	60
0a1e6c1f	61	#define PCI6208_MAX_AO_CHANNELS 16
5c67df8b	62
5e42525d HS	63	enum pci6208_boardid {
	64	BOARD_PCI6208,
	65	BOARD_PCI6216,
	66	};
	67
c1b31c44	68	struct pci6208_board {
8b93f903	69	const char *name;
8b93f903	70	int ao_chans;
c1b31c44 BP	71	};
	72
	73	static const struct pci6208_board pci6208_boards[] = {
5e42525d	74	[BOARD_PCI6208] = {
0a1e6c1f	75	.name = "adl_pci6208",
dcff1681	76	.ao_chans = 8,
5e42525d HS	77	},
5e42525d HS	78	[BOARD_PCI6216] = {
0a1e6c1f	79	.name = "adl_pci6216",
0a1e6c1f	80	.ao_chans = 16,
dcff1681	81	},
8b93f903	82	};
8b93f903	83
3d393c86	84	struct pci6208_private {
5c67df8b	85	unsigned int ao_readback[PCI6208_MAX_AO_CHANNELS];
3d393c86	86	};
8b93f903	87
0a85b6f0 MT	88	static int pci6208_ao_winsn(struct comedi_device *dev,
	89	struct comedi_subdevice *s,
	90	struct comedi_insn insn, unsigned int data)
8b93f903	91	{
949a18d3	92	struct pci6208_private *devpriv = dev->private;
8366404b	93	int chan = CR_CHAN(insn->chanspec);
8b93f903	94	unsigned long invert = 1 << (16 - 1);
8366404b HS	95	unsigned long value = 0;
	96	unsigned short status;
	97	int i;
a7c6de4c	98
8b93f903	99	for (i = 0; i < insn->n; i++) {
8366404b HS	100	value = data[i] ^ invert;
8366404b HS	101
8b93f903	102	do {
8366404b HS	103	status = inw(dev->iobase + PCI6208_AO_STATUS);
	104	} while (status & PCI6208_AO_STATUS_DATA_SEND);
	105
	106	outw(value, dev->iobase + PCI6208_AO_CONTROL(chan));
8b93f903	107	}
8366404b	108	devpriv->ao_readback[chan] = value;
8b93f903	109
8366404b	110	return insn->n;
8b93f903	111	}
8b93f903	112
0a85b6f0 MT	113	static int pci6208_ao_rinsn(struct comedi_device *dev,
	114	struct comedi_subdevice *s,
	115	struct comedi_insn insn, unsigned int data)
8b93f903	116	{
949a18d3	117	struct pci6208_private *devpriv = dev->private;
8b93f903	118	int chan = CR_CHAN(insn->chanspec);
7c1e5bc7	119	int i;
8b93f903	120
	121	for (i = 0; i < insn->n; i++)
	122	data[i] = devpriv->ao_readback[chan];
	123
7c1e5bc7	124	return insn->n;
8b93f903	125	}
8b93f903	126
270809a8 HS	127	static int pci6208_di_insn_bits(struct comedi_device *dev,
	128	struct comedi_subdevice *s,
	129	struct comedi_insn *insn,
	130	unsigned int *data)
fc2536fd	131	{
270809a8 HS	132	unsigned int val;
	133
	134	val = inw(dev->iobase + PCI6208_DIO);
	135	val = (val & PCI6208_DIO_DI_MASK) >> PCI6208_DIO_DI_SHIFT;
	136
	137	data[1] = val;
	138
	139	return insn->n;
	140	}
	141
	142	static int pci6208_do_insn_bits(struct comedi_device *dev,
	143	struct comedi_subdevice *s,
	144	struct comedi_insn *insn,
	145	unsigned int *data)
	146	{
	147	unsigned int mask = data[0];
fc2536fd HS	148	unsigned int bits = data[1];
	149
	150	if (mask) {
	151	s->state &= ~mask;
270809a8	152	s->state \|= (bits & mask);
fc2536fd HS	153
	154	outw(s->state, dev->iobase + PCI6208_DIO);
	155	}
	156
fc2536fd HS	157	data[1] = s->state;
	158
	159	return insn->n;
	160	}
	161
a690b7e5	162	static int pci6208_auto_attach(struct comedi_device *dev,
5e42525d	163	unsigned long context)
c8d87bcc	164	{
750af5e5	165	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
5e42525d	166	const struct pci6208_board *boardinfo = NULL;
949a18d3	167	struct pci6208_private *devpriv;
c8d87bcc	168	struct comedi_subdevice *s;
270809a8	169	unsigned int val;
9d639b6b	170	int ret;
c8d87bcc	171
5e42525d HS	172	if (context < ARRAY_SIZE(pci6208_boards))
5e42525d HS	173	boardinfo = &pci6208_boards[context];
744a8398 HS	174	if (!boardinfo)
	175	return -ENODEV;
	176	dev->board_ptr = boardinfo;
	177	dev->board_name = boardinfo->name;
	178
c34fa261 HS	179	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
	180	if (!devpriv)
	181	return -ENOMEM;
	182	dev->private = devpriv;
c8d87bcc	183
818f569f	184	ret = comedi_pci_enable(dev);
3cf05ddb	185	if (ret)
9d639b6b	186	return ret;
f8ec6392	187	dev->iobase = pci_resource_start(pcidev, 2);
c8d87bcc	188
270809a8	189	ret = comedi_alloc_subdevices(dev, 3);
9d639b6b HS	190	if (ret)
9d639b6b HS	191	return ret;
c8d87bcc	192
1f6115a4	193	s = &dev->subdevices[0];
c8d87bcc	194	/* analog output subdevice */
111b62e4 HS	195	s->type = COMEDI_SUBD_AO;
111b62e4 HS	196	s->subdev_flags = SDF_WRITABLE;
744a8398	197	s->n_chan = boardinfo->ao_chans;
111b62e4 HS	198	s->maxdata = 0xffff;
	199	s->range_table = &range_bipolar10;
	200	s->insn_write = pci6208_ao_winsn;
	201	s->insn_read = pci6208_ao_rinsn;
c8d87bcc	202
1f6115a4	203	s = &dev->subdevices[1];
270809a8 HS	204	/* digital input subdevice */
	205	s->type = COMEDI_SUBD_DI;
	206	s->subdev_flags = SDF_READABLE;
	207	s->n_chan = 4;
111b62e4 HS	208	s->maxdata = 1;
111b62e4 HS	209	s->range_table = &range_digital;
270809a8	210	s->insn_bits = pci6208_di_insn_bits;
111b62e4	211
1f6115a4	212	s = &dev->subdevices[2];
270809a8 HS	213	/* digital output subdevice */
	214	s->type = COMEDI_SUBD_DO;
	215	s->subdev_flags = SDF_WRITABLE;
	216	s->n_chan = 4;
	217	s->maxdata = 1;
	218	s->range_table = &range_digital;
	219	s->insn_bits = pci6208_do_insn_bits;
	220
	221	/*
	222	* Get the read back signals from the digital outputs
	223	* and save it as the initial state for the subdevice.
	224	*/
	225	val = inw(dev->iobase + PCI6208_DIO);
	226	val = (val & PCI6208_DIO_DO_MASK) >> PCI6208_DIO_DO_SHIFT;
	227	s->state = val;
111b62e4	228	s->io_bits = 0x0f;
c8d87bcc	229
b4dda059 HS	230	dev_info(dev->class_dev, "%s: %s, I/O base=0x%04lx\n",
b4dda059 HS	231	dev->driver->driver_name, dev->board_name, dev->iobase);
c8d87bcc	232
98bcf911	233	return 0;
c8d87bcc HS	234	}
c8d87bcc HS	235
75e6301b HS	236	static struct comedi_driver adl_pci6208_driver = {
75e6301b HS	237	.driver_name = "adl_pci6208",
c8d87bcc	238	.module = THIS_MODULE,
750af5e5	239	.auto_attach = pci6208_auto_attach,
7f072f54	240	.detach = comedi_pci_disable,
c8d87bcc HS	241	};
c8d87bcc HS	242
a690b7e5	243	static int adl_pci6208_pci_probe(struct pci_dev *dev,
b8f4ac23	244	const struct pci_device_id *id)
c8d87bcc	245	{
b8f4ac23 HS	246	return comedi_pci_auto_config(dev, &adl_pci6208_driver,
b8f4ac23 HS	247	id->driver_data);
c8d87bcc HS	248	}
c8d87bcc HS	249
75e6301b	250	static DEFINE_PCI_DEVICE_TABLE(adl_pci6208_pci_table) = {
5e42525d HS	251	{ PCI_VDEVICE(ADLINK, 0x6208), BOARD_PCI6208 },
5e42525d HS	252	{ PCI_VDEVICE(ADLINK, 0x6216), BOARD_PCI6216 },
c8d87bcc HS	253	{ 0 }
c8d87bcc HS	254	};
75e6301b	255	MODULE_DEVICE_TABLE(pci, adl_pci6208_pci_table);
c8d87bcc	256
75e6301b HS	257	static struct pci_driver adl_pci6208_pci_driver = {
	258	.name = "adl_pci6208",
	259	.id_table = adl_pci6208_pci_table,
	260	.probe = adl_pci6208_pci_probe,
9901a4d7	261	.remove = comedi_pci_auto_unconfig,
c8d87bcc	262	};
75e6301b	263	module_comedi_pci_driver(adl_pci6208_driver, adl_pci6208_pci_driver);
c8d87bcc	264
90f703d3 AT	265	MODULE_AUTHOR("Comedi http://www.comedi.org");
	266	MODULE_DESCRIPTION("Comedi low-level driver");
	267	MODULE_LICENSE("GPL");