[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-6208A
Devices: [ADLink] PCI-6208A (adl_pci6208)
Author: nsyeow <nsyeow@pd.jaring.my>
Updated: Fri, 30 Jan 2004 14:44:27 +0800
Status: untested

Configuration Options:
  none

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

#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		8

struct pci6208_board {
	const char *name;
	unsigned short dev_id;
	int ao_chans;
};

static const struct pci6208_board pci6208_boards[] = {
	{
		.name		= "pci6208a",
		.dev_id		= 0x6208,
		.ao_chans	= 8,
	},
};

struct pci6208_private {
	struct pci_dev *pci_dev;
	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_dio_insn_bits(struct comedi_device *dev,
				 struct comedi_subdevice *s,
				 struct comedi_insn *insn,
				 unsigned int *data)
{
	unsigned int mask = data[0] & PCI6208_DIO_DO_MASK;
	unsigned int bits = data[1];

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

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

	s->state = inw(dev->iobase + PCI6208_DIO);
	data[1] = s->state;

	return insn->n;
}

static int pci6208_dio_insn_config(struct comedi_device *dev,
				   struct comedi_subdevice *s,
				   struct comedi_insn *insn,
				   unsigned int *data)
{
	int chan = CR_CHAN(insn->chanspec);
	unsigned int mask = 1 << chan;

	switch (data[0]) {
	case INSN_CONFIG_DIO_QUERY:
		data[1] = (s->io_bits & mask) ? COMEDI_OUTPUT : COMEDI_INPUT;
		break;
	default:
		return -EINVAL;
	}

	return insn->n;
}

static struct pci_dev *pci6208_find_device(struct comedi_device *dev,
					   struct comedi_devconfig *it)
{
	const struct pci6208_board *thisboard;
	struct pci_dev *pci_dev = NULL;
	int bus = it->options[0];
	int slot = it->options[1];
	int i;

	for_each_pci_dev(pci_dev) {
		if (pci_dev->vendor != PCI_VENDOR_ID_ADLINK)
			continue;
		for (i = 0; i < ARRAY_SIZE(pci6208_boards); i++) {
			thisboard = &pci6208_boards[i];
			if (thisboard->dev_id != pci_dev->device)
				continue;
			/* was a particular bus/slot requested? */
			if (bus || slot) {
				/* are we on the wrong bus/slot? */
				if (pci_dev->bus->number != bus ||
				    PCI_SLOT(pci_dev->devfn) != slot)
					continue;
			}
			dev_dbg(dev->class_dev,
				"Found %s on bus %d, slot, %d, irq=%d\n",
				thisboard->name,
				pci_dev->bus->number,
				PCI_SLOT(pci_dev->devfn),
				pci_dev->irq);
			dev->board_ptr = thisboard;
			return pci_dev;
		}
	}
	dev_err(dev->class_dev,
		"No supported board found! (req. bus %d, slot %d)\n",
		bus, slot);
	return NULL;
}

static int pci6208_attach(struct comedi_device *dev,
			  struct comedi_devconfig *it)
{
	const struct pci6208_board *thisboard;
	struct pci6208_private *devpriv;
	struct comedi_subdevice *s;
	int ret;

	ret = alloc_private(dev, sizeof(*devpriv));
	if (ret < 0)
		return ret;
	devpriv = dev->private;

	devpriv->pci_dev = pci6208_find_device(dev, it);
	if (!devpriv->pci_dev)
		return -EIO;
	thisboard = comedi_board(dev);

	dev->board_name = thisboard->name;

	ret = comedi_pci_enable(devpriv->pci_dev, dev->driver->driver_name);
	if (ret) {
		dev_err(dev->class_dev,
			"Failed to enable PCI device and request regions\n");
		return ret;
	}
	dev->iobase = pci_resource_start(devpriv->pci_dev, 2);

	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;
	s->range_table	= &range_bipolar10;
	s->insn_write	= pci6208_ao_winsn;
	s->insn_read	= pci6208_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	= pci6208_dio_insn_bits;
	s->insn_config	= pci6208_dio_insn_config;

	s->io_bits	= 0x0f;
	s->state	= inw(dev->iobase + PCI6208_DIO);

	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 void pci6208_detach(struct comedi_device *dev)
{
	struct pci6208_private *devpriv = dev->private;

	if (devpriv && devpriv->pci_dev) {
		if (dev->iobase)
			comedi_pci_disable(devpriv->pci_dev);
		pci_dev_put(devpriv->pci_dev);
	}
}

static struct comedi_driver adl_pci6208_driver = {
	.driver_name	= "adl_pci6208",
	.module		= THIS_MODULE,
	.attach		= pci6208_attach,
	.detach		= pci6208_detach,
};

static int __devinit adl_pci6208_pci_probe(struct pci_dev *dev,
					   const struct pci_device_id *ent)
{
	return comedi_pci_auto_config(dev, &adl_pci6208_driver);
}

static void __devexit adl_pci6208_pci_remove(struct pci_dev *dev)
{
	comedi_pci_auto_unconfig(dev);
}

static DEFINE_PCI_DEVICE_TABLE(adl_pci6208_pci_table) = {
	{ PCI_DEVICE(PCI_VENDOR_ID_ADLINK, 0x6208) },
	{ 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		= __devexit_p(adl_pci6208_pci_remove),
};
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
	30	Description: ADLink PCI-6208A
	31	Devices: [ADLink] PCI-6208A (adl_pci6208)
	32	Author: nsyeow <nsyeow@pd.jaring.my>
	33	Updated: Fri, 30 Jan 2004 14:44:27 +0800
	34	Status: untested
	35
	36	Configuration Options:
	37	none
	38
	39	References:
	40	- ni_660x.c
	41	- adl_pci9111.c copied the entire pci setup section
	42	- adl_pci9118.c
	43	*/
a7c6de4c	44
8b93f903	45	#include "../comedidev.h"
8b93f903	46
7b6afad1 HS	47	/*
	48	* PCI-6208/6216-GL register map
	49	*/
	50	#define PCI6208_AO_CONTROL(x) (0x00 + (2 * (x)))
	51	#define PCI6208_AO_STATUS 0x00
	52	#define PCI6208_AO_STATUS_DATA_SEND (1 << 0)
	53	#define PCI6208_DIO 0x40
	54	#define PCI6208_DIO_DO_MASK (0x0f)
	55	#define PCI6208_DIO_DO_SHIFT (0)
	56	#define PCI6208_DIO_DI_MASK (0xf0)
	57	#define PCI6208_DIO_DI_SHIFT (4)
	58
5c67df8b HS	59	#define PCI6208_MAX_AO_CHANNELS 8
5c67df8b HS	60
c1b31c44	61	struct pci6208_board {
8b93f903	62	const char *name;
a7c6de4c	63	unsigned short dev_id;
8b93f903	64	int ao_chans;
c1b31c44 BP	65	};
	66
	67	static const struct pci6208_board pci6208_boards[] = {
8b93f903	68	{
dcff1681 HS	69	.name = "pci6208a",
	70	.dev_id = 0x6208,
	71	.ao_chans = 8,
	72	},
8b93f903	73	};
8b93f903	74
3d393c86	75	struct pci6208_private {
a7c6de4c	76	struct pci_dev *pci_dev;
5c67df8b	77	unsigned int ao_readback[PCI6208_MAX_AO_CHANNELS];
3d393c86	78	};
8b93f903	79
0a85b6f0 MT	80	static int pci6208_ao_winsn(struct comedi_device *dev,
	81	struct comedi_subdevice *s,
	82	struct comedi_insn insn, unsigned int data)
8b93f903	83	{
949a18d3	84	struct pci6208_private *devpriv = dev->private;
8366404b	85	int chan = CR_CHAN(insn->chanspec);
8b93f903	86	unsigned long invert = 1 << (16 - 1);
8366404b HS	87	unsigned long value = 0;
	88	unsigned short status;
	89	int i;
a7c6de4c	90
8b93f903	91	for (i = 0; i < insn->n; i++) {
8366404b HS	92	value = data[i] ^ invert;
8366404b HS	93
8b93f903	94	do {
8366404b HS	95	status = inw(dev->iobase + PCI6208_AO_STATUS);
	96	} while (status & PCI6208_AO_STATUS_DATA_SEND);
	97
	98	outw(value, dev->iobase + PCI6208_AO_CONTROL(chan));
8b93f903	99	}
8366404b	100	devpriv->ao_readback[chan] = value;
8b93f903	101
8366404b	102	return insn->n;
8b93f903	103	}
8b93f903	104
0a85b6f0 MT	105	static int pci6208_ao_rinsn(struct comedi_device *dev,
	106	struct comedi_subdevice *s,
	107	struct comedi_insn insn, unsigned int data)
8b93f903	108	{
949a18d3	109	struct pci6208_private *devpriv = dev->private;
8b93f903	110	int chan = CR_CHAN(insn->chanspec);
7c1e5bc7	111	int i;
8b93f903	112
	113	for (i = 0; i < insn->n; i++)
	114	data[i] = devpriv->ao_readback[chan];
	115
7c1e5bc7	116	return insn->n;
8b93f903	117	}
8b93f903	118
fc2536fd HS	119	static int pci6208_dio_insn_bits(struct comedi_device *dev,
	120	struct comedi_subdevice *s,
	121	struct comedi_insn *insn,
	122	unsigned int *data)
	123	{
	124	unsigned int mask = data[0] & PCI6208_DIO_DO_MASK;
	125	unsigned int bits = data[1];
	126
	127	if (mask) {
	128	s->state &= ~mask;
	129	s->state \|= bits & mask;
	130
	131	outw(s->state, dev->iobase + PCI6208_DIO);
	132	}
	133
	134	s->state = inw(dev->iobase + PCI6208_DIO);
	135	data[1] = s->state;
	136
	137	return insn->n;
	138	}
	139
	140	static int pci6208_dio_insn_config(struct comedi_device *dev,
	141	struct comedi_subdevice *s,
	142	struct comedi_insn *insn,
	143	unsigned int *data)
	144	{
	145	int chan = CR_CHAN(insn->chanspec);
	146	unsigned int mask = 1 << chan;
	147
	148	switch (data[0]) {
	149	case INSN_CONFIG_DIO_QUERY:
	150	data[1] = (s->io_bits & mask) ? COMEDI_OUTPUT : COMEDI_INPUT;
	151	break;
	152	default:
	153	return -EINVAL;
	154	}
	155
	156	return insn->n;
	157	}
8b93f903	158
cde6f08a HS	159	static struct pci_dev pci6208_find_device(struct comedi_device dev,
cde6f08a HS	160	struct comedi_devconfig *it)
8b93f903	161	{
cde6f08a	162	const struct pci6208_board *thisboard;
20fb2280	163	struct pci_dev *pci_dev = NULL;
cde6f08a HS	164	int bus = it->options[0];
cde6f08a HS	165	int slot = it->options[1];
8b93f903	166	int i;
8b93f903	167
20fb2280	168	for_each_pci_dev(pci_dev) {
cde6f08a HS	169	if (pci_dev->vendor != PCI_VENDOR_ID_ADLINK)
	170	continue;
	171	for (i = 0; i < ARRAY_SIZE(pci6208_boards); i++) {
	172	thisboard = &pci6208_boards[i];
	173	if (thisboard->dev_id != pci_dev->device)
	174	continue;
	175	/* was a particular bus/slot requested? */
	176	if (bus \|\| slot) {
	177	/* are we on the wrong bus/slot? */
	178	if (pci_dev->bus->number != bus \|\|
	179	PCI_SLOT(pci_dev->devfn) != slot)
	180	continue;
8b93f903	181	}
cde6f08a HS	182	dev_dbg(dev->class_dev,
	183	"Found %s on bus %d, slot, %d, irq=%d\n",
	184	thisboard->name,
	185	pci_dev->bus->number,
	186	PCI_SLOT(pci_dev->devfn),
	187	pci_dev->irq);
	188	dev->board_ptr = thisboard;
	189	return pci_dev;
8b93f903	190	}
8b93f903	191	}
cde6f08a HS	192	dev_err(dev->class_dev,
	193	"No supported board found! (req. bus %d, slot %d)\n",
	194	bus, slot);
	195	return NULL;
8b93f903	196	}
8b93f903	197
c8d87bcc HS	198	static int pci6208_attach(struct comedi_device *dev,
	199	struct comedi_devconfig *it)
	200	{
949a18d3 HS	201	const struct pci6208_board *thisboard;
949a18d3 HS	202	struct pci6208_private *devpriv;
c8d87bcc	203	struct comedi_subdevice *s;
9d639b6b	204	int ret;
c8d87bcc	205
9d639b6b HS	206	ret = alloc_private(dev, sizeof(*devpriv));
	207	if (ret < 0)
	208	return ret;
949a18d3	209	devpriv = dev->private;
c8d87bcc	210
cde6f08a HS	211	devpriv->pci_dev = pci6208_find_device(dev, it);
	212	if (!devpriv->pci_dev)
	213	return -EIO;
949a18d3	214	thisboard = comedi_board(dev);
c8d87bcc	215
2d993c24 HS	216	dev->board_name = thisboard->name;
2d993c24 HS	217
404f9991	218	ret = comedi_pci_enable(devpriv->pci_dev, dev->driver->driver_name);
9d639b6b	219	if (ret) {
db7c275d HS	220	dev_err(dev->class_dev,
db7c275d HS	221	"Failed to enable PCI device and request regions\n");
9d639b6b	222	return ret;
db7c275d	223	}
db7c275d	224	dev->iobase = pci_resource_start(devpriv->pci_dev, 2);
c8d87bcc	225
9d639b6b HS	226	ret = comedi_alloc_subdevices(dev, 2);
	227	if (ret)
	228	return ret;
c8d87bcc HS	229
	230	s = dev->subdevices + 0;
	231	/* analog output subdevice */
111b62e4 HS	232	s->type = COMEDI_SUBD_AO;
	233	s->subdev_flags = SDF_WRITABLE;
	234	s->n_chan = thisboard->ao_chans;
	235	s->maxdata = 0xffff;
	236	s->range_table = &range_bipolar10;
	237	s->insn_write = pci6208_ao_winsn;
	238	s->insn_read = pci6208_ao_rinsn;
c8d87bcc	239
fc2536fd	240	s = dev->subdevices + 1;
c8d87bcc	241	/* digital i/o subdevice */
111b62e4 HS	242	s->type = COMEDI_SUBD_DIO;
	243	s->subdev_flags = SDF_READABLE \| SDF_WRITABLE;
	244	s->n_chan = 8;
	245	s->maxdata = 1;
	246	s->range_table = &range_digital;
	247	s->insn_bits = pci6208_dio_insn_bits;
	248	s->insn_config = pci6208_dio_insn_config;
	249
	250	s->io_bits = 0x0f;
	251	s->state = inw(dev->iobase + PCI6208_DIO);
c8d87bcc	252
b4dda059 HS	253	dev_info(dev->class_dev, "%s: %s, I/O base=0x%04lx\n",
b4dda059 HS	254	dev->driver->driver_name, dev->board_name, dev->iobase);
c8d87bcc	255
98bcf911	256	return 0;
c8d87bcc HS	257	}
c8d87bcc HS	258
484ecc95	259	static void pci6208_detach(struct comedi_device *dev)
c8d87bcc	260	{
949a18d3 HS	261	struct pci6208_private *devpriv = dev->private;
949a18d3 HS	262
c8d87bcc HS	263	if (devpriv && devpriv->pci_dev) {
	264	if (dev->iobase)
	265	comedi_pci_disable(devpriv->pci_dev);
	266	pci_dev_put(devpriv->pci_dev);
	267	}
c8d87bcc HS	268	}
c8d87bcc HS	269
75e6301b HS	270	static struct comedi_driver adl_pci6208_driver = {
75e6301b HS	271	.driver_name = "adl_pci6208",
c8d87bcc HS	272	.module = THIS_MODULE,
	273	.attach = pci6208_attach,
	274	.detach = pci6208_detach,
	275	};
	276
75e6301b HS	277	static int __devinit adl_pci6208_pci_probe(struct pci_dev *dev,
75e6301b HS	278	const struct pci_device_id *ent)
c8d87bcc	279	{
75e6301b	280	return comedi_pci_auto_config(dev, &adl_pci6208_driver);
c8d87bcc HS	281	}
c8d87bcc HS	282
75e6301b	283	static void __devexit adl_pci6208_pci_remove(struct pci_dev *dev)
c8d87bcc HS	284	{
	285	comedi_pci_auto_unconfig(dev);
	286	}
	287
75e6301b	288	static DEFINE_PCI_DEVICE_TABLE(adl_pci6208_pci_table) = {
c8d87bcc HS	289	{ PCI_DEVICE(PCI_VENDOR_ID_ADLINK, 0x6208) },
	290	{ 0 }
	291	};
75e6301b	292	MODULE_DEVICE_TABLE(pci, adl_pci6208_pci_table);
c8d87bcc	293
75e6301b HS	294	static struct pci_driver adl_pci6208_pci_driver = {
	295	.name = "adl_pci6208",
	296	.id_table = adl_pci6208_pci_table,
	297	.probe = adl_pci6208_pci_probe,
	298	.remove = __devexit_p(adl_pci6208_pci_remove),
c8d87bcc	299	};
75e6301b	300	module_comedi_pci_driver(adl_pci6208_driver, adl_pci6208_pci_driver);
c8d87bcc	301
90f703d3 AT	302	MODULE_AUTHOR("Comedi http://www.comedi.org");
	303	MODULE_DESCRIPTION("Comedi low-level driver");
	304	MODULE_LICENSE("GPL");