[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 {
	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 pci_dev *pcidev;
	struct comedi_subdevice *s;
	int ret;

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

	pcidev = pci6208_find_device(dev, it);
	if (!pcidev)
		return -EIO;
	comedi_set_hw_dev(dev, &pcidev->dev);
	thisboard = comedi_board(dev);

	dev->board_name = thisboard->name;

	ret = comedi_pci_enable(pcidev, 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(pcidev, 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 pci_dev *pcidev = comedi_to_pci_dev(dev);

	if (pcidev) {
		if (dev->iobase)
			comedi_pci_disable(pcidev);
		pci_dev_put(pcidev);
	}
}

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 {
5c67df8b	76	unsigned int ao_readback[PCI6208_MAX_AO_CHANNELS];
3d393c86	77	};
8b93f903	78
0a85b6f0 MT	79	static int pci6208_ao_winsn(struct comedi_device *dev,
	80	struct comedi_subdevice *s,
	81	struct comedi_insn insn, unsigned int data)
8b93f903	82	{
949a18d3	83	struct pci6208_private *devpriv = dev->private;
8366404b	84	int chan = CR_CHAN(insn->chanspec);
8b93f903	85	unsigned long invert = 1 << (16 - 1);
8366404b HS	86	unsigned long value = 0;
	87	unsigned short status;
	88	int i;
a7c6de4c	89
8b93f903	90	for (i = 0; i < insn->n; i++) {
8366404b HS	91	value = data[i] ^ invert;
8366404b HS	92
8b93f903	93	do {
8366404b HS	94	status = inw(dev->iobase + PCI6208_AO_STATUS);
	95	} while (status & PCI6208_AO_STATUS_DATA_SEND);
	96
	97	outw(value, dev->iobase + PCI6208_AO_CONTROL(chan));
8b93f903	98	}
8366404b	99	devpriv->ao_readback[chan] = value;
8b93f903	100
8366404b	101	return insn->n;
8b93f903	102	}
8b93f903	103
0a85b6f0 MT	104	static int pci6208_ao_rinsn(struct comedi_device *dev,
	105	struct comedi_subdevice *s,
	106	struct comedi_insn insn, unsigned int data)
8b93f903	107	{
949a18d3	108	struct pci6208_private *devpriv = dev->private;
8b93f903	109	int chan = CR_CHAN(insn->chanspec);
7c1e5bc7	110	int i;
8b93f903	111
	112	for (i = 0; i < insn->n; i++)
	113	data[i] = devpriv->ao_readback[chan];
	114
7c1e5bc7	115	return insn->n;
8b93f903	116	}
8b93f903	117
fc2536fd HS	118	static int pci6208_dio_insn_bits(struct comedi_device *dev,
	119	struct comedi_subdevice *s,
	120	struct comedi_insn *insn,
	121	unsigned int *data)
	122	{
	123	unsigned int mask = data[0] & PCI6208_DIO_DO_MASK;
	124	unsigned int bits = data[1];
	125
	126	if (mask) {
	127	s->state &= ~mask;
	128	s->state \|= bits & mask;
	129
	130	outw(s->state, dev->iobase + PCI6208_DIO);
	131	}
	132
	133	s->state = inw(dev->iobase + PCI6208_DIO);
	134	data[1] = s->state;
	135
	136	return insn->n;
	137	}
	138
	139	static int pci6208_dio_insn_config(struct comedi_device *dev,
	140	struct comedi_subdevice *s,
	141	struct comedi_insn *insn,
	142	unsigned int *data)
	143	{
	144	int chan = CR_CHAN(insn->chanspec);
	145	unsigned int mask = 1 << chan;
	146
	147	switch (data[0]) {
	148	case INSN_CONFIG_DIO_QUERY:
	149	data[1] = (s->io_bits & mask) ? COMEDI_OUTPUT : COMEDI_INPUT;
	150	break;
	151	default:
	152	return -EINVAL;
	153	}
	154
	155	return insn->n;
	156	}
8b93f903	157
cde6f08a HS	158	static struct pci_dev pci6208_find_device(struct comedi_device dev,
cde6f08a HS	159	struct comedi_devconfig *it)
8b93f903	160	{
cde6f08a	161	const struct pci6208_board *thisboard;
20fb2280	162	struct pci_dev *pci_dev = NULL;
cde6f08a HS	163	int bus = it->options[0];
cde6f08a HS	164	int slot = it->options[1];
8b93f903	165	int i;
8b93f903	166
20fb2280	167	for_each_pci_dev(pci_dev) {
cde6f08a HS	168	if (pci_dev->vendor != PCI_VENDOR_ID_ADLINK)
	169	continue;
	170	for (i = 0; i < ARRAY_SIZE(pci6208_boards); i++) {
	171	thisboard = &pci6208_boards[i];
	172	if (thisboard->dev_id != pci_dev->device)
	173	continue;
	174	/* was a particular bus/slot requested? */
	175	if (bus \|\| slot) {
	176	/* are we on the wrong bus/slot? */
	177	if (pci_dev->bus->number != bus \|\|
	178	PCI_SLOT(pci_dev->devfn) != slot)
	179	continue;
8b93f903	180	}
cde6f08a HS	181	dev_dbg(dev->class_dev,
	182	"Found %s on bus %d, slot, %d, irq=%d\n",
	183	thisboard->name,
	184	pci_dev->bus->number,
	185	PCI_SLOT(pci_dev->devfn),
	186	pci_dev->irq);
	187	dev->board_ptr = thisboard;
	188	return pci_dev;
8b93f903	189	}
8b93f903	190	}
cde6f08a HS	191	dev_err(dev->class_dev,
	192	"No supported board found! (req. bus %d, slot %d)\n",
	193	bus, slot);
	194	return NULL;
8b93f903	195	}
8b93f903	196
c8d87bcc HS	197	static int pci6208_attach(struct comedi_device *dev,
	198	struct comedi_devconfig *it)
	199	{
949a18d3 HS	200	const struct pci6208_board *thisboard;
949a18d3 HS	201	struct pci6208_private *devpriv;
f8ec6392	202	struct pci_dev *pcidev;
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
f8ec6392 HS	211	pcidev = pci6208_find_device(dev, it);
f8ec6392 HS	212	if (!pcidev)
cde6f08a	213	return -EIO;
f8ec6392	214	comedi_set_hw_dev(dev, &pcidev->dev);
949a18d3	215	thisboard = comedi_board(dev);
c8d87bcc	216
2d993c24 HS	217	dev->board_name = thisboard->name;
2d993c24 HS	218
f8ec6392	219	ret = comedi_pci_enable(pcidev, dev->driver->driver_name);
9d639b6b	220	if (ret) {
db7c275d HS	221	dev_err(dev->class_dev,
db7c275d HS	222	"Failed to enable PCI device and request regions\n");
9d639b6b	223	return ret;
db7c275d	224	}
f8ec6392	225	dev->iobase = pci_resource_start(pcidev, 2);
c8d87bcc	226
9d639b6b HS	227	ret = comedi_alloc_subdevices(dev, 2);
	228	if (ret)
	229	return ret;
c8d87bcc HS	230
	231	s = dev->subdevices + 0;
	232	/* analog output subdevice */
111b62e4 HS	233	s->type = COMEDI_SUBD_AO;
	234	s->subdev_flags = SDF_WRITABLE;
	235	s->n_chan = thisboard->ao_chans;
	236	s->maxdata = 0xffff;
	237	s->range_table = &range_bipolar10;
	238	s->insn_write = pci6208_ao_winsn;
	239	s->insn_read = pci6208_ao_rinsn;
c8d87bcc	240
fc2536fd	241	s = dev->subdevices + 1;
c8d87bcc	242	/* digital i/o subdevice */
111b62e4 HS	243	s->type = COMEDI_SUBD_DIO;
	244	s->subdev_flags = SDF_READABLE \| SDF_WRITABLE;
	245	s->n_chan = 8;
	246	s->maxdata = 1;
	247	s->range_table = &range_digital;
	248	s->insn_bits = pci6208_dio_insn_bits;
	249	s->insn_config = pci6208_dio_insn_config;
	250
	251	s->io_bits = 0x0f;
	252	s->state = inw(dev->iobase + PCI6208_DIO);
c8d87bcc	253
b4dda059 HS	254	dev_info(dev->class_dev, "%s: %s, I/O base=0x%04lx\n",
b4dda059 HS	255	dev->driver->driver_name, dev->board_name, dev->iobase);
c8d87bcc	256
98bcf911	257	return 0;
c8d87bcc HS	258	}
c8d87bcc HS	259
484ecc95	260	static void pci6208_detach(struct comedi_device *dev)
c8d87bcc	261	{
f8ec6392	262	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
949a18d3	263
f8ec6392	264	if (pcidev) {
c8d87bcc	265	if (dev->iobase)
f8ec6392 HS	266	comedi_pci_disable(pcidev);
f8ec6392 HS	267	pci_dev_put(pcidev);
c8d87bcc	268	}
c8d87bcc HS	269	}
c8d87bcc HS	270
75e6301b HS	271	static struct comedi_driver adl_pci6208_driver = {
75e6301b HS	272	.driver_name = "adl_pci6208",
c8d87bcc HS	273	.module = THIS_MODULE,
	274	.attach = pci6208_attach,
	275	.detach = pci6208_detach,
	276	};
	277
75e6301b HS	278	static int __devinit adl_pci6208_pci_probe(struct pci_dev *dev,
75e6301b HS	279	const struct pci_device_id *ent)
c8d87bcc	280	{
75e6301b	281	return comedi_pci_auto_config(dev, &adl_pci6208_driver);
c8d87bcc HS	282	}
c8d87bcc HS	283
75e6301b	284	static void __devexit adl_pci6208_pci_remove(struct pci_dev *dev)
c8d87bcc HS	285	{
	286	comedi_pci_auto_unconfig(dev);
	287	}
	288
75e6301b	289	static DEFINE_PCI_DEVICE_TABLE(adl_pci6208_pci_table) = {
c8d87bcc HS	290	{ PCI_DEVICE(PCI_VENDOR_ID_ADLINK, 0x6208) },
	291	{ 0 }
	292	};
75e6301b	293	MODULE_DEVICE_TABLE(pci, adl_pci6208_pci_table);
c8d87bcc	294
75e6301b HS	295	static struct pci_driver adl_pci6208_pci_driver = {
	296	.name = "adl_pci6208",
	297	.id_table = adl_pci6208_pci_table,
	298	.probe = adl_pci6208_pci_probe,
	299	.remove = __devexit_p(adl_pci6208_pci_remove),
c8d87bcc	300	};
75e6301b	301	module_comedi_pci_driver(adl_pci6208_driver, adl_pci6208_pci_driver);
c8d87bcc	302
90f703d3 AT	303	MODULE_AUTHOR("Comedi http://www.comedi.org");
	304	MODULE_DESCRIPTION("Comedi low-level driver");
	305	MODULE_LICENSE("GPL");