[GitHub/mt8127/android_kernel_alcatel_ttab.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
*/
/*
 * These headers should be followed by a blank line, and any comments
 * you wish to say about the driver.  The comment area is the place
 * to put any known bugs, limitations, unsupported features, supported
 * command triggers, whether or not commands are supported on particular
 * subdevices, etc.
 *
 * Somewhere in the comment should be information about configuration
 * options that are used with comedi_config.
 */
#include "../comedidev.h"
#include "comedi_pci.h"

#define PCI6208_DRIVER_NAME	"adl_pci6208"

/* Board descriptions */
struct pci6208_board {
	const char *name;
	unsigned short dev_id;	/* `lspci` will show you this */
	int ao_chans;
	/* int ao_bits; */
};

static const struct pci6208_board pci6208_boards[] = {
	/*{
	   .name = "pci6208v",
	   .dev_id = 0x6208,      // not sure
	   .ao_chans = 8
	   // , .ao_bits = 16
	   },
	   {
	   .name = "pci6216v",
	   .dev_id = 0x6208,      // not sure
	   .ao_chans = 16
	   // , .ao_bits = 16
	   }, */
	{
	 .name = "pci6208a",
	 .dev_id = 0x6208,
	 .ao_chans = 8
	 /* ,    .ao_bits = 16 */
	 }
};

/* This is used by modprobe to translate PCI IDs to drivers.  Should
 * only be used for PCI and ISA-PnP devices */
static DEFINE_PCI_DEVICE_TABLE(pci6208_pci_table) = {
	/* { PCI_VENDOR_ID_ADLINK, 0x6208, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, */
	/* { PCI_VENDOR_ID_ADLINK, 0x6208, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, */
	{
	PCI_VENDOR_ID_ADLINK, 0x6208, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, {
	0}
};

MODULE_DEVICE_TABLE(pci, pci6208_pci_table);

/* Will be initialized in pci6208_find device(). */
#define thisboard ((const struct pci6208_board *)dev->board_ptr)

struct pci6208_private {
	int data;
	struct pci_dev *pci_dev;	/* for a PCI device */
	unsigned int ao_readback[2];	/* Used for AO readback */
};

#define devpriv ((struct pci6208_private *)dev->private)

static int pci6208_attach(struct comedi_device *dev,
			  struct comedi_devconfig *it);
static int pci6208_detach(struct comedi_device *dev);

static struct comedi_driver driver_pci6208 = {
	.driver_name = PCI6208_DRIVER_NAME,
	.module = THIS_MODULE,
	.attach = pci6208_attach,
	.detach = pci6208_detach,
};

static int __devinit driver_pci6208_pci_probe(struct pci_dev *dev,
					      const struct pci_device_id *ent)
{
	return comedi_pci_auto_config(dev, driver_pci6208.driver_name);
}

static void __devexit driver_pci6208_pci_remove(struct pci_dev *dev)
{
	comedi_pci_auto_unconfig(dev);
}

static struct pci_driver driver_pci6208_pci_driver = {
	.id_table = pci6208_pci_table,
	.probe = &driver_pci6208_pci_probe,
	.remove = __devexit_p(&driver_pci6208_pci_remove)
};

static int __init driver_pci6208_init_module(void)
{
	int retval;

	retval = comedi_driver_register(&driver_pci6208);
	if (retval < 0)
		return retval;

	driver_pci6208_pci_driver.name = (char *)driver_pci6208.driver_name;
	return pci_register_driver(&driver_pci6208_pci_driver);
}

static void __exit driver_pci6208_cleanup_module(void)
{
	pci_unregister_driver(&driver_pci6208_pci_driver);
	comedi_driver_unregister(&driver_pci6208);
}

module_init(driver_pci6208_init_module);
module_exit(driver_pci6208_cleanup_module);

static int pci6208_find_device(struct comedi_device *dev, int bus, int slot);
static int
pci6208_pci_setup(struct pci_dev *pci_dev, unsigned long *io_base_ptr,
		  int dev_minor);

/*read/write functions*/
static int pci6208_ao_winsn(struct comedi_device *dev,
			    struct comedi_subdevice *s,
			    struct comedi_insn *insn, unsigned int *data);
static int pci6208_ao_rinsn(struct comedi_device *dev,
			    struct comedi_subdevice *s,
			    struct comedi_insn *insn, unsigned int *data);
/* static int pci6208_dio_insn_bits (struct comedi_device *dev,
 *					struct comedi_subdevice *s, */
/* struct comedi_insn *insn,unsigned int *data); */
/* static int pci6208_dio_insn_config(struct comedi_device *dev,
 *					struct comedi_subdevice *s, */
/* struct comedi_insn *insn,unsigned int *data); */

/*
 * Attach is called by the Comedi core to configure the driver
 * for a particular board.  If you specified a board_name array
 * in the driver structure, dev->board_ptr contains that
 * address.
 */
static int pci6208_attach(struct comedi_device *dev,
			  struct comedi_devconfig *it)
{
	struct comedi_subdevice *s;
	int retval;
	unsigned long io_base;

	printk(KERN_INFO "comedi%d: pci6208: ", dev->minor);

	retval = alloc_private(dev, sizeof(struct pci6208_private));
	if (retval < 0)
		return retval;

	retval = pci6208_find_device(dev, it->options[0], it->options[1]);
	if (retval < 0)
		return retval;

	retval = pci6208_pci_setup(devpriv->pci_dev, &io_base, dev->minor);
	if (retval < 0)
		return retval;

	dev->iobase = io_base;
	dev->board_name = thisboard->name;

/*
 * Allocate the subdevice structures.  alloc_subdevice() is a
 * convenient macro defined in comedidev.h.
 */
	if (alloc_subdevices(dev, 2) < 0)
		return -ENOMEM;

	s = dev->subdevices + 0;
	/* analog output subdevice */
	s->type = COMEDI_SUBD_AO;
	s->subdev_flags = SDF_WRITABLE;	/* anything else to add here?? */
	s->n_chan = thisboard->ao_chans;
	s->maxdata = 0xffff;	/* 16-bit DAC */
	s->range_table = &range_bipolar10;	/* this needs to be checked. */
	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=16; */
	/* s->maxdata=1; */
	/* s->range_table=&range_digital; */
	/* s->insn_bits = pci6208_dio_insn_bits; */
	/* s->insn_config = pci6208_dio_insn_config; */

	printk(KERN_INFO "attached\n");

	return 1;
}

/*
 * _detach is called to deconfigure a device.  It should deallocate
 * resources.
 * This function is also called when _attach() fails, so it should be
 * careful not to release resources that were not necessarily
 * allocated by _attach().  dev->private and dev->subdevices are
 * deallocated automatically by the core.
 */
static int pci6208_detach(struct comedi_device *dev)
{
	printk(KERN_INFO "comedi%d: pci6208: remove\n", dev->minor);

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

	return 0;
}

static int pci6208_ao_winsn(struct comedi_device *dev,
			    struct comedi_subdevice *s,
			    struct comedi_insn *insn, unsigned int *data)
{
	int i = 0, Data_Read;
	unsigned short chan = CR_CHAN(insn->chanspec);
	unsigned long invert = 1 << (16 - 1);
	unsigned long out_value;
	/* Writing a list of values to an AO channel is probably not
	 * very useful, but that's how the interface is defined. */
	for (i = 0; i < insn->n; i++) {
		out_value = data[i] ^ invert;
		/* a typical programming sequence */
		do {
			Data_Read = (inw(dev->iobase) & 1);
		} while (Data_Read);
		outw(out_value, dev->iobase + (0x02 * chan));
		devpriv->ao_readback[chan] = out_value;
	}

	/* return the number of samples read/written */
	return i;
}

/* AO subdevices should have a read insn as well as a write insn.
 * Usually this means copying a value stored in devpriv. */
static int pci6208_ao_rinsn(struct comedi_device *dev,
			    struct comedi_subdevice *s,
			    struct comedi_insn *insn, unsigned int *data)
{
	int i;
	int chan = CR_CHAN(insn->chanspec);

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

	return i;
}

/* DIO devices are slightly special.  Although it is possible to
 * implement the insn_read/insn_write interface, it is much more
 * useful to applications if you implement the insn_bits interface.
 * This allows packed reading/writing of the DIO channels.  The
 * comedi core can convert between insn_bits and insn_read/write */
/* static int pci6208_dio_insn_bits(struct comedi_device *dev,
 *					struct comedi_subdevice *s, */
/* struct comedi_insn *insn,unsigned int *data) */
/* { */
/* if(insn->n!=2)return -EINVAL; */

	/* The insn data is a mask in data[0] and the new data
	 * in data[1], each channel cooresponding to a bit. */
/* if(data[0]){ */
/* s->state &= ~data[0]; */
/* s->state |= data[0]&data[1]; */
		/* Write out the new digital output lines */
		/* outw(s->state,dev->iobase + SKEL_DIO); */
/* } */

	/* on return, data[1] contains the value of the digital
	 * input and output lines. */
	/* data[1]=inw(dev->iobase + SKEL_DIO); */
	/* or we could just return the software copy of the output values if
	 * it was a purely digital output subdevice */
	/* data[1]=s->state; */

/* return 2; */
/* } */

/* 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); */

	/* The input or output configuration of each digital line is
	 * configured by a special insn_config instruction.  chanspec
	 * contains the channel to be changed, and data[0] contains the
	 * value COMEDI_INPUT or COMEDI_OUTPUT. */

/* if(data[0]==COMEDI_OUTPUT){ */
/* s->io_bits |= 1<<chan; */
/* }else{ */
/* s->io_bits &= ~(1<<chan); */
/* } */
	/* outw(s->io_bits,dev->iobase + SKEL_DIO_CONFIG); */

/* return 1; */
/* } */

static int pci6208_find_device(struct comedi_device *dev, int bus, int slot)
{
	struct pci_dev *pci_dev = NULL;
	int i;

	for_each_pci_dev(pci_dev) {
		if (pci_dev->vendor == PCI_VENDOR_ID_ADLINK) {
			for (i = 0; i < ARRAY_SIZE(pci6208_boards); i++) {
				if (pci6208_boards[i].dev_id ==
					pci_dev->device) {
					/*
					 * was a particular bus/slot requested?
					*/
					if ((bus != 0) || (slot != 0)) {
						/*
						 * are we on the
						 * wrong bus/slot?
						*/
						if (pci_dev->bus->number
						    != bus ||
						    PCI_SLOT(pci_dev->devfn)
						    != slot) {
							continue;
						}
					}
					dev->board_ptr = pci6208_boards + i;
					goto found;
				}
			}
		}
	}

	printk(KERN_ERR "comedi%d: no supported board found! "
			"(req. bus/slot : %d/%d)\n",
			dev->minor, bus, slot);
	return -EIO;

found:
	printk("comedi%d: found %s (b:s:f=%d:%d:%d) , irq=%d\n",
	       dev->minor,
	       pci6208_boards[i].name,
	       pci_dev->bus->number,
	       PCI_SLOT(pci_dev->devfn),
	       PCI_FUNC(pci_dev->devfn), pci_dev->irq);

	/*  TODO: Warn about non-tested boards. */
	/* switch(board->device_id) */
	/* { */
	/* }; */

	devpriv->pci_dev = pci_dev;

	return 0;
}

static int
pci6208_pci_setup(struct pci_dev *pci_dev, unsigned long *io_base_ptr,
		  int dev_minor)
{
	unsigned long io_base, io_range, lcr_io_base, lcr_io_range;

	/*  Enable PCI device and request regions */
	if (comedi_pci_enable(pci_dev, PCI6208_DRIVER_NAME) < 0) {
		printk(KERN_ERR "comedi%d: Failed to enable PCI device "
			"and request regions\n",
			dev_minor);
		return -EIO;
	}
	/* Read local configuration register
	 * base address [PCI_BASE_ADDRESS #1].
	 */
	lcr_io_base = pci_resource_start(pci_dev, 1);
	lcr_io_range = pci_resource_len(pci_dev, 1);

	printk(KERN_INFO "comedi%d: local config registers at address"
			" 0x%4lx [0x%4lx]\n",
			dev_minor, lcr_io_base, lcr_io_range);

	/*  Read PCI6208 register base address [PCI_BASE_ADDRESS #2]. */
	io_base = pci_resource_start(pci_dev, 2);
	io_range = pci_resource_end(pci_dev, 2) - io_base + 1;

	printk("comedi%d: 6208 registers at address 0x%4lx [0x%4lx]\n",
	       dev_minor, io_base, io_range);

	*io_base_ptr = io_base;
	/* devpriv->io_range = io_range; */
	/* devpriv->is_valid=0; */
	/* devpriv->lcr_io_base=lcr_io_base; */
	/* devpriv->lcr_io_range=lcr_io_range; */

	return 0;
}

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	*/
	44	/*
	45	* These headers should be followed by a blank line, and any comments
	46	* you wish to say about the driver. The comment area is the place
	47	* to put any known bugs, limitations, unsupported features, supported
	48	* command triggers, whether or not commands are supported on particular
	49	* subdevices, etc.
	50	*
	51	* Somewhere in the comment should be information about configuration
	52	* options that are used with comedi_config.
	53	*/
	54	#include "../comedidev.h"
	55	#include "comedi_pci.h"
	56
69121fa8	57	#define PCI6208_DRIVER_NAME "adl_pci6208"
8b93f903	58
8b93f903	59	/* Board descriptions */
c1b31c44	60	struct pci6208_board {
8b93f903	61	const char *name;
	62	unsigned short dev_id; /* `lspci` will show you this */
	63	int ao_chans;
14458b19	64	/* int ao_bits; */
c1b31c44 BP	65	};
	66
	67	static const struct pci6208_board pci6208_boards[] = {
8b93f903	68	/*{
0a85b6f0 MT	69	.name = "pci6208v",
	70	.dev_id = 0x6208, // not sure
	71	.ao_chans = 8
	72	// , .ao_bits = 16
8b93f903	73	},
8b93f903	74	{
0a85b6f0 MT	75	.name = "pci6216v",
	76	.dev_id = 0x6208, // not sure
	77	.ao_chans = 16
	78	// , .ao_bits = 16
8b93f903	79	}, */
8b93f903	80	{
0a85b6f0 MT	81	.name = "pci6208a",
	82	.dev_id = 0x6208,
	83	.ao_chans = 8
	84	/* , .ao_bits = 16 */
	85	}
8b93f903	86	};
	87
	88	/* This is used by modprobe to translate PCI IDs to drivers. Should
	89	* only be used for PCI and ISA-PnP devices */
	90	static DEFINE_PCI_DEVICE_TABLE(pci6208_pci_table) = {
14458b19 BP	91	/* { PCI_VENDOR_ID_ADLINK, 0x6208, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, */
14458b19 BP	92	/* { PCI_VENDOR_ID_ADLINK, 0x6208, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, */
0a85b6f0 MT	93	{
	94	PCI_VENDOR_ID_ADLINK, 0x6208, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, {
	95	0}
8b93f903	96	};
	97
	98	MODULE_DEVICE_TABLE(pci, pci6208_pci_table);
	99
	100	/* Will be initialized in pci6208_find device(). */
c1b31c44	101	#define thisboard ((const struct pci6208_board *)dev->board_ptr)
8b93f903	102
3d393c86	103	struct pci6208_private {
8b93f903	104	int data;
8b93f903	105	struct pci_dev pci_dev; / for a PCI device */
790c5541	106	unsigned int ao_readback[2]; /* Used for AO readback */
3d393c86	107	};
8b93f903	108
3d393c86	109	#define devpriv ((struct pci6208_private *)dev->private)
8b93f903	110
0a85b6f0 MT	111	static int pci6208_attach(struct comedi_device *dev,
0a85b6f0 MT	112	struct comedi_devconfig *it);
da91b269	113	static int pci6208_detach(struct comedi_device *dev);
8b93f903	114
139dfbdf	115	static struct comedi_driver driver_pci6208 = {
68c3dbff BP	116	.driver_name = PCI6208_DRIVER_NAME,
	117	.module = THIS_MODULE,
	118	.attach = pci6208_attach,
	119	.detach = pci6208_detach,
8b93f903	120	};
8b93f903	121
727b286b AT	122	static int __devinit driver_pci6208_pci_probe(struct pci_dev *dev,
	123	const struct pci_device_id *ent)
	124	{
	125	return comedi_pci_auto_config(dev, driver_pci6208.driver_name);
	126	}
	127
	128	static void __devexit driver_pci6208_pci_remove(struct pci_dev *dev)
	129	{
	130	comedi_pci_auto_unconfig(dev);
	131	}
	132
	133	static struct pci_driver driver_pci6208_pci_driver = {
	134	.id_table = pci6208_pci_table,
	135	.probe = &driver_pci6208_pci_probe,
	136	.remove = __devexit_p(&driver_pci6208_pci_remove)
	137	};
	138
	139	static int __init driver_pci6208_init_module(void)
	140	{
	141	int retval;
	142
	143	retval = comedi_driver_register(&driver_pci6208);
	144	if (retval < 0)
	145	return retval;
	146
	147	driver_pci6208_pci_driver.name = (char *)driver_pci6208.driver_name;
	148	return pci_register_driver(&driver_pci6208_pci_driver);
	149	}
	150
	151	static void __exit driver_pci6208_cleanup_module(void)
	152	{
	153	pci_unregister_driver(&driver_pci6208_pci_driver);
	154	comedi_driver_unregister(&driver_pci6208);
	155	}
	156
	157	module_init(driver_pci6208_init_module);
	158	module_exit(driver_pci6208_cleanup_module);
8b93f903	159
da91b269	160	static int pci6208_find_device(struct comedi_device *dev, int bus, int slot);
8b93f903	161	static int
8b93f903	162	pci6208_pci_setup(struct pci_dev pci_dev, unsigned long io_base_ptr,
0a85b6f0	163	int dev_minor);
8b93f903	164
8b93f903	165	/read/write functions/
0a85b6f0 MT	166	static int pci6208_ao_winsn(struct comedi_device *dev,
	167	struct comedi_subdevice *s,
	168	struct comedi_insn insn, unsigned int data);
	169	static int pci6208_ao_rinsn(struct comedi_device *dev,
	170	struct comedi_subdevice *s,
	171	struct comedi_insn insn, unsigned int data);
becdaa83	172	/* static int pci6208_dio_insn_bits (struct comedi_device *dev,
69121fa8	173	* struct comedi_subdevice s, /
14458b19	174	/* struct comedi_insn insn,unsigned int data); */
becdaa83	175	/* static int pci6208_dio_insn_config(struct comedi_device *dev,
69121fa8	176	* struct comedi_subdevice s, /
14458b19	177	/* struct comedi_insn insn,unsigned int data); */
8b93f903	178
	179	/*
	180	* Attach is called by the Comedi core to configure the driver
	181	* for a particular board. If you specified a board_name array
	182	* in the driver structure, dev->board_ptr contains that
	183	* address.
	184	*/
0a85b6f0 MT	185	static int pci6208_attach(struct comedi_device *dev,
0a85b6f0 MT	186	struct comedi_devconfig *it)
8b93f903	187	{
34c43922	188	struct comedi_subdevice *s;
8b93f903	189	int retval;
	190	unsigned long io_base;
	191
becdaa83	192	printk(KERN_INFO "comedi%d: pci6208: ", dev->minor);
8b93f903	193
3d393c86	194	retval = alloc_private(dev, sizeof(struct pci6208_private));
8b93f903	195	if (retval < 0)
	196	return retval;
	197
	198	retval = pci6208_find_device(dev, it->options[0], it->options[1]);
	199	if (retval < 0)
	200	return retval;
	201
	202	retval = pci6208_pci_setup(devpriv->pci_dev, &io_base, dev->minor);
	203	if (retval < 0)
	204	return retval;
	205
	206	dev->iobase = io_base;
	207	dev->board_name = thisboard->name;
	208
	209	/*
	210	* Allocate the subdevice structures. alloc_subdevice() is a
	211	* convenient macro defined in comedidev.h.
	212	*/
	213	if (alloc_subdevices(dev, 2) < 0)
	214	return -ENOMEM;
	215
	216	s = dev->subdevices + 0;
	217	/* analog output subdevice */
	218	s->type = COMEDI_SUBD_AO;
14458b19	219	s->subdev_flags = SDF_WRITABLE; /* anything else to add here?? */
8b93f903	220	s->n_chan = thisboard->ao_chans;
14458b19 BP	221	s->maxdata = 0xffff; /* 16-bit DAC */
14458b19 BP	222	s->range_table = &range_bipolar10; /* this needs to be checked. */
8b93f903	223	s->insn_write = pci6208_ao_winsn;
	224	s->insn_read = pci6208_ao_rinsn;
	225
14458b19	226	/* s=dev->subdevices+1; */
8b93f903	227	/* digital i/o subdevice */
14458b19 BP	228	/* s->type=COMEDI_SUBD_DIO; */
	229	/* s->subdev_flags=SDF_READABLE\|SDF_WRITABLE; */
	230	/* s->n_chan=16; */
	231	/* s->maxdata=1; */
	232	/* s->range_table=&range_digital; */
	233	/* s->insn_bits = pci6208_dio_insn_bits; */
	234	/* s->insn_config = pci6208_dio_insn_config; */
8b93f903	235
becdaa83	236	printk(KERN_INFO "attached\n");
8b93f903	237
	238	return 1;
	239	}
	240
	241	/*
	242	* _detach is called to deconfigure a device. It should deallocate
	243	* resources.
	244	* This function is also called when _attach() fails, so it should be
	245	* careful not to release resources that were not necessarily
	246	* allocated by _attach(). dev->private and dev->subdevices are
	247	* deallocated automatically by the core.
	248	*/
da91b269	249	static int pci6208_detach(struct comedi_device *dev)
8b93f903	250	{
becdaa83	251	printk(KERN_INFO "comedi%d: pci6208: remove\n", dev->minor);
8b93f903	252
8b93f903	253	if (devpriv && devpriv->pci_dev) {
becdaa83	254	if (dev->iobase)
8b93f903	255	comedi_pci_disable(devpriv->pci_dev);
8b93f903	256	pci_dev_put(devpriv->pci_dev);
	257	}
	258
	259	return 0;
	260	}
	261
0a85b6f0 MT	262	static int pci6208_ao_winsn(struct comedi_device *dev,
	263	struct comedi_subdevice *s,
	264	struct comedi_insn insn, unsigned int data)
8b93f903	265	{
	266	int i = 0, Data_Read;
	267	unsigned short chan = CR_CHAN(insn->chanspec);
	268	unsigned long invert = 1 << (16 - 1);
	269	unsigned long out_value;
	270	/* Writing a list of values to an AO channel is probably not
	271	* very useful, but that's how the interface is defined. */
	272	for (i = 0; i < insn->n; i++) {
	273	out_value = data[i] ^ invert;
	274	/* a typical programming sequence */
	275	do {
	276	Data_Read = (inw(dev->iobase) & 1);
	277	} while (Data_Read);
	278	outw(out_value, dev->iobase + (0x02 * chan));
	279	devpriv->ao_readback[chan] = out_value;
	280	}
	281
	282	/* return the number of samples read/written */
	283	return i;
	284	}
	285
	286	/* AO subdevices should have a read insn as well as a write insn.
	287	* Usually this means copying a value stored in devpriv. */
0a85b6f0 MT	288	static int pci6208_ao_rinsn(struct comedi_device *dev,
	289	struct comedi_subdevice *s,
	290	struct comedi_insn insn, unsigned int data)
8b93f903	291	{
	292	int i;
	293	int chan = CR_CHAN(insn->chanspec);
	294
	295	for (i = 0; i < insn->n; i++)
	296	data[i] = devpriv->ao_readback[chan];
	297
	298	return i;
	299	}
	300
	301	/* DIO devices are slightly special. Although it is possible to
	302	* implement the insn_read/insn_write interface, it is much more
	303	* useful to applications if you implement the insn_bits interface.
	304	* This allows packed reading/writing of the DIO channels. The
	305	* comedi core can convert between insn_bits and insn_read/write */
becdaa83	306	/* static int pci6208_dio_insn_bits(struct comedi_device *dev,
69121fa8	307	* struct comedi_subdevice s, /
14458b19 BP	308	/* struct comedi_insn insn,unsigned int data) */
	309	/* { */
	310	/* if(insn->n!=2)return -EINVAL; */
8b93f903	311
	312	/* The insn data is a mask in data[0] and the new data
	313	* in data[1], each channel cooresponding to a bit. */
14458b19 BP	314	/* if(data[0]){ */
	315	/* s->state &= ~data[0]; */
	316	/* s->state \|= data[0]&data[1]; */
8b93f903	317	/* Write out the new digital output lines */
14458b19 BP	318	/* outw(s->state,dev->iobase + SKEL_DIO); */
14458b19 BP	319	/* } */
8b93f903	320
	321	/* on return, data[1] contains the value of the digital
	322	* input and output lines. */
14458b19	323	/* data[1]=inw(dev->iobase + SKEL_DIO); */
8b93f903	324	/* or we could just return the software copy of the output values if
8b93f903	325	* it was a purely digital output subdevice */
14458b19	326	/* data[1]=s->state; */
8b93f903	327
14458b19 BP	328	/* return 2; */
14458b19 BP	329	/* } */
8b93f903	330
becdaa83	331	/* static int pci6208_dio_insn_config(struct comedi_device *dev,
69121fa8	332	* struct comedi_subdevice s, /
14458b19 BP	333	/* struct comedi_insn insn,unsigned int data) */
	334	/* { */
	335	/* int chan=CR_CHAN(insn->chanspec); */
8b93f903	336
	337	/* The input or output configuration of each digital line is
	338	* configured by a special insn_config instruction. chanspec
	339	* contains the channel to be changed, and data[0] contains the
	340	* value COMEDI_INPUT or COMEDI_OUTPUT. */
	341
14458b19 BP	342	/* if(data[0]==COMEDI_OUTPUT){ */
	343	/* s->io_bits \|= 1<<chan; */
	344	/* }else{ */
	345	/* s->io_bits &= ~(1<<chan); */
	346	/* } */
	347	/* outw(s->io_bits,dev->iobase + SKEL_DIO_CONFIG); */
8b93f903	348
14458b19 BP	349	/* return 1; */
14458b19 BP	350	/* } */
8b93f903	351
da91b269	352	static int pci6208_find_device(struct comedi_device *dev, int bus, int slot)
8b93f903	353	{
20fb2280	354	struct pci_dev *pci_dev = NULL;
8b93f903	355	int i;
8b93f903	356
20fb2280	357	for_each_pci_dev(pci_dev) {
8b93f903	358	if (pci_dev->vendor == PCI_VENDOR_ID_ADLINK) {
8629efa4	359	for (i = 0; i < ARRAY_SIZE(pci6208_boards); i++) {
becdaa83 VK	360	if (pci6208_boards[i].dev_id ==
	361	pci_dev->device) {
	362	/*
	363	* was a particular bus/slot requested?
	364	*/
8b93f903	365	if ((bus != 0) \|\| (slot != 0)) {
becdaa83 VK	366	/*
	367	* are we on the
	368	* wrong bus/slot?
	369	*/
8b93f903	370	if (pci_dev->bus->number
0a85b6f0 MT	371	!= bus \|\|
	372	PCI_SLOT(pci_dev->devfn)
	373	!= slot) {
8b93f903	374	continue;
	375	}
	376	}
	377	dev->board_ptr = pci6208_boards + i;
	378	goto found;
	379	}
	380	}
	381	}
	382	}
	383
becdaa83 VK	384	printk(KERN_ERR "comedi%d: no supported board found! "
	385	"(req. bus/slot : %d/%d)\n",
	386	dev->minor, bus, slot);
8b93f903	387	return -EIO;
8b93f903	388
0a85b6f0	389	found:
8b93f903	390	printk("comedi%d: found %s (b:s:f=%d:%d:%d) , irq=%d\n",
0a85b6f0 MT	391	dev->minor,
	392	pci6208_boards[i].name,
	393	pci_dev->bus->number,
	394	PCI_SLOT(pci_dev->devfn),
	395	PCI_FUNC(pci_dev->devfn), pci_dev->irq);
8b93f903	396
14458b19 BP	397	/* TODO: Warn about non-tested boards. */
	398	/* switch(board->device_id) */
	399	/* { */
	400	/* }; */
8b93f903	401
	402	devpriv->pci_dev = pci_dev;
	403
	404	return 0;
	405	}
	406
	407	static int
	408	pci6208_pci_setup(struct pci_dev pci_dev, unsigned long io_base_ptr,
0a85b6f0	409	int dev_minor)
8b93f903	410	{
	411	unsigned long io_base, io_range, lcr_io_base, lcr_io_range;
	412
14458b19	413	/* Enable PCI device and request regions */
8b93f903	414	if (comedi_pci_enable(pci_dev, PCI6208_DRIVER_NAME) < 0) {
becdaa83 VK	415	printk(KERN_ERR "comedi%d: Failed to enable PCI device "
	416	"and request regions\n",
	417	dev_minor);
8b93f903	418	return -EIO;
8b93f903	419	}
becdaa83 VK	420	/* Read local configuration register
	421	* base address [PCI_BASE_ADDRESS #1].
	422	*/
8b93f903	423	lcr_io_base = pci_resource_start(pci_dev, 1);
	424	lcr_io_range = pci_resource_len(pci_dev, 1);
	425
becdaa83 VK	426	printk(KERN_INFO "comedi%d: local config registers at address"
	427	" 0x%4lx [0x%4lx]\n",
	428	dev_minor, lcr_io_base, lcr_io_range);
8b93f903	429
14458b19	430	/* Read PCI6208 register base address [PCI_BASE_ADDRESS #2]. */
8b93f903	431	io_base = pci_resource_start(pci_dev, 2);
	432	io_range = pci_resource_end(pci_dev, 2) - io_base + 1;
	433
	434	printk("comedi%d: 6208 registers at address 0x%4lx [0x%4lx]\n",
0a85b6f0	435	dev_minor, io_base, io_range);
8b93f903	436
8b93f903	437	*io_base_ptr = io_base;
14458b19 BP	438	/* devpriv->io_range = io_range; */
	439	/* devpriv->is_valid=0; */
	440	/* devpriv->lcr_io_base=lcr_io_base; */
	441	/* devpriv->lcr_io_range=lcr_io_range; */
8b93f903	442
	443	return 0;
	444	}
90f703d3 AT	445
	446	MODULE_AUTHOR("Comedi http://www.comedi.org");
	447	MODULE_DESCRIPTION("Comedi low-level driver");
	448	MODULE_LICENSE("GPL");