drivers/staging/comedi/drivers/adl_pci8164.c - manifest_repos/salami - Git at Google

 /*
     comedi/drivers/adl_pci8164.c

     Hardware comedi driver fot PCI-8164 Adlink card
     Copyright (C) 2004 Michel Lachine <mike@mikelachaine.ca>

     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_pci8164
 Description: Driver for the Adlink PCI-8164 4 Axes Motion Control board
 Devices: [ADLink] PCI-8164 (adl_pci8164)
 Author: Michel Lachaine <mike@mikelachaine.ca>
 Status: experimental
 Updated: Mon, 14 Apr 2008 15:10:32 +0100

 Configuration Options: not applicable, uses PCI auto config
 */

 #include "../comedidev.h"
 #include <linux/kernel.h>
 #include <linux/delay.h>
 #include "comedi_fc.h"
 #include "8253.h"

 #define PCI8164_AXIS_X  0x00
 #define PCI8164_AXIS_Y  0x08
 #define PCI8164_AXIS_Z  0x10
 #define PCI8164_AXIS_U  0x18

 #define PCI8164_MSTS	0x00
 #define PCI8164_SSTS    0x02
 #define PCI8164_BUF0    0x04
 #define PCI8164_BUF1    0x06

 #define PCI8164_CMD     0x00
 #define PCI8164_OTP     0x02

 #define PCI_DEVICE_ID_PCI8164 0x8164

 /*
  all the read commands are the same except for the addition a constant
  * const to the data for inw()
  */
 static void adl_pci8164_insn_read(struct comedi_device *dev,
 				  struct comedi_subdevice *s,
 				  struct comedi_insn *insn,
 				  unsigned int *data,
 				  char *action, unsigned short offset)
 {
 	int axis, axis_reg;
 	char *axisname;

 	axis = CR_CHAN(insn->chanspec);

 	switch (axis) {
 	case 0:
 		axis_reg = PCI8164_AXIS_X;
 		axisname = "X";
 		break;
 	case 1:
 		axis_reg = PCI8164_AXIS_Y;
 		axisname = "Y";
 		break;
 	case 2:
 		axis_reg = PCI8164_AXIS_Z;
 		axisname = "Z";
 		break;
 	case 3:
 		axis_reg = PCI8164_AXIS_U;
 		axisname = "U";
 		break;
 	default:
 		axis_reg = PCI8164_AXIS_X;
 		axisname = "X";
 	}

 	data[0] = inw(dev->iobase + axis_reg + offset);
 	dev_dbg(dev->class_dev,
 		"pci8164 %s read -> %04X:%04X on axis %s\n",
 		action, data[0], data[1], axisname);
 }

 static int adl_pci8164_insn_read_msts(struct comedi_device *dev,
 				      struct comedi_subdevice *s,
 				      struct comedi_insn *insn,
 				      unsigned int *data)
 {
 	adl_pci8164_insn_read(dev, s, insn, data, "MSTS", PCI8164_MSTS);
 	return 2;
 }

 static int adl_pci8164_insn_read_ssts(struct comedi_device *dev,
 				      struct comedi_subdevice *s,
 				      struct comedi_insn *insn,
 				      unsigned int *data)
 {
 	adl_pci8164_insn_read(dev, s, insn, data, "SSTS", PCI8164_SSTS);
 	return 2;
 }

 static int adl_pci8164_insn_read_buf0(struct comedi_device *dev,
 				      struct comedi_subdevice *s,
 				      struct comedi_insn *insn,
 				      unsigned int *data)
 {
 	adl_pci8164_insn_read(dev, s, insn, data, "BUF0", PCI8164_BUF0);
 	return 2;
 }

 static int adl_pci8164_insn_read_buf1(struct comedi_device *dev,
 				      struct comedi_subdevice *s,
 				      struct comedi_insn *insn,
 				      unsigned int *data)
 {
 	adl_pci8164_insn_read(dev, s, insn, data, "BUF1", PCI8164_BUF1);
 	return 2;
 }

 /*
  all the write commands are the same except for the addition a constant
  * const to the data for outw()
  */
 static void adl_pci8164_insn_out(struct comedi_device *dev,
 				 struct comedi_subdevice *s,
 				 struct comedi_insn *insn,
 				 unsigned int *data,
 				 char *action, unsigned short offset)
 {
 	unsigned int axis, axis_reg;

 	char *axisname;

 	axis = CR_CHAN(insn->chanspec);

 	switch (axis) {
 	case 0:
 		axis_reg = PCI8164_AXIS_X;
 		axisname = "X";
 		break;
 	case 1:
 		axis_reg = PCI8164_AXIS_Y;
 		axisname = "Y";
 		break;
 	case 2:
 		axis_reg = PCI8164_AXIS_Z;
 		axisname = "Z";
 		break;
 	case 3:
 		axis_reg = PCI8164_AXIS_U;
 		axisname = "U";
 		break;
 	default:
 		axis_reg = PCI8164_AXIS_X;
 		axisname = "X";
 	}

 	outw(data[0], dev->iobase + axis_reg + offset);

 	dev_dbg(dev->class_dev,
 		"pci8164 %s write -> %04X:%04X on axis %s\n",
 		action, data[0], data[1], axisname);

 }

 static int adl_pci8164_insn_write_cmd(struct comedi_device *dev,
 				      struct comedi_subdevice *s,
 				      struct comedi_insn *insn,
 				      unsigned int *data)
 {
 	adl_pci8164_insn_out(dev, s, insn, data, "CMD", PCI8164_CMD);
 	return 2;
 }

 static int adl_pci8164_insn_write_otp(struct comedi_device *dev,
 				      struct comedi_subdevice *s,
 				      struct comedi_insn *insn,
 				      unsigned int *data)
 {
 	adl_pci8164_insn_out(dev, s, insn, data, "OTP", PCI8164_OTP);
 	return 2;
 }

 static int adl_pci8164_insn_write_buf0(struct comedi_device *dev,
 				       struct comedi_subdevice *s,
 				       struct comedi_insn *insn,
 				       unsigned int *data)
 {
 	adl_pci8164_insn_out(dev, s, insn, data, "BUF0", PCI8164_BUF0);
 	return 2;
 }

 static int adl_pci8164_insn_write_buf1(struct comedi_device *dev,
 				       struct comedi_subdevice *s,
 				       struct comedi_insn *insn,
 				       unsigned int *data)
 {
 	adl_pci8164_insn_out(dev, s, insn, data, "BUF1", PCI8164_BUF1);
 	return 2;
 }

 static int adl_pci8164_auto_attach(struct comedi_device *dev,
 					     unsigned long context_unused)
 {
 	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
 	struct comedi_subdevice *s;
 	int ret;

 	dev->board_name = dev->driver->driver_name;

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

 	ret = comedi_alloc_subdevices(dev, 4);
 	if (ret)
 		return ret;

 	s = &dev->subdevices[0];
 	s->type = COMEDI_SUBD_PROC;
 	s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
 	s->n_chan = 4;
 	s->maxdata = 0xffff;
 	s->len_chanlist = 4;
 	/* s->range_table = &range_axis; */
 	s->insn_read = adl_pci8164_insn_read_msts;
 	s->insn_write = adl_pci8164_insn_write_cmd;

 	s = &dev->subdevices[1];
 	s->type = COMEDI_SUBD_PROC;
 	s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
 	s->n_chan = 4;
 	s->maxdata = 0xffff;
 	s->len_chanlist = 4;
 	/* s->range_table = &range_axis; */
 	s->insn_read = adl_pci8164_insn_read_ssts;
 	s->insn_write = adl_pci8164_insn_write_otp;

 	s = &dev->subdevices[2];
 	s->type = COMEDI_SUBD_PROC;
 	s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
 	s->n_chan = 4;
 	s->maxdata = 0xffff;
 	s->len_chanlist = 4;
 	/* s->range_table = &range_axis; */
 	s->insn_read = adl_pci8164_insn_read_buf0;
 	s->insn_write = adl_pci8164_insn_write_buf0;

 	s = &dev->subdevices[3];
 	s->type = COMEDI_SUBD_PROC;
 	s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
 	s->n_chan = 4;
 	s->maxdata = 0xffff;
 	s->len_chanlist = 4;
 	/* s->range_table = &range_axis; */
 	s->insn_read = adl_pci8164_insn_read_buf1;
 	s->insn_write = adl_pci8164_insn_write_buf1;

 	dev_info(dev->class_dev, "%s attached\n", dev->board_name);

 	return 0;
 }

 static void adl_pci8164_detach(struct comedi_device *dev)
 {
 	struct pci_dev *pcidev = comedi_to_pci_dev(dev);

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

 static struct comedi_driver adl_pci8164_driver = {
 	.driver_name	= "adl_pci8164",
 	.module		= THIS_MODULE,
 	.auto_attach	= adl_pci8164_auto_attach,
 	.detach		= adl_pci8164_detach,
 };

 static int adl_pci8164_pci_probe(struct pci_dev *dev,
 					   const struct pci_device_id *ent)
 {
 	return comedi_pci_auto_config(dev, &adl_pci8164_driver);
 }

 static void adl_pci8164_pci_remove(struct pci_dev *dev)
 {
 	comedi_pci_auto_unconfig(dev);
 }

 static DEFINE_PCI_DEVICE_TABLE(adl_pci8164_pci_table) = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_ADLINK, PCI_DEVICE_ID_PCI8164) },
 	{0}
 };
 MODULE_DEVICE_TABLE(pci, adl_pci8164_pci_table);

 static struct pci_driver adl_pci8164_pci_driver = {
 	.name		= "adl_pci8164",
 	.id_table	= adl_pci8164_pci_table,
 	.probe		= adl_pci8164_pci_probe,
 	.remove		= adl_pci8164_pci_remove,
 };
 module_comedi_pci_driver(adl_pci8164_driver, adl_pci8164_pci_driver);

 MODULE_AUTHOR("Comedi http://www.comedi.org");
 MODULE_DESCRIPTION("Comedi low-level driver");
 MODULE_LICENSE("GPL");
	/*
	comedi/drivers/adl_pci8164.c

	Hardware comedi driver fot PCI-8164 Adlink card
	Copyright (C) 2004 Michel Lachine <mike@mikelachaine.ca>

	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_pci8164
	Description: Driver for the Adlink PCI-8164 4 Axes Motion Control board
	Devices: [ADLink] PCI-8164 (adl_pci8164)
	Author: Michel Lachaine <mike@mikelachaine.ca>
	Status: experimental
	Updated: Mon, 14 Apr 2008 15:10:32 +0100

	Configuration Options: not applicable, uses PCI auto config
	*/

	#include "../comedidev.h"
	#include <linux/kernel.h>
	#include <linux/delay.h>
	#include "comedi_fc.h"
	#include "8253.h"

	#define PCI8164_AXIS_X 0x00
	#define PCI8164_AXIS_Y 0x08
	#define PCI8164_AXIS_Z 0x10
	#define PCI8164_AXIS_U 0x18

	#define PCI8164_MSTS 0x00
	#define PCI8164_SSTS 0x02
	#define PCI8164_BUF0 0x04
	#define PCI8164_BUF1 0x06

	#define PCI8164_CMD 0x00
	#define PCI8164_OTP 0x02

	#define PCI_DEVICE_ID_PCI8164 0x8164

	/*
	all the read commands are the same except for the addition a constant
	* const to the data for inw()
	*/
	static void adl_pci8164_insn_read(struct comedi_device *dev,
	struct comedi_subdevice *s,
	struct comedi_insn *insn,
	unsigned int *data,
	char *action, unsigned short offset)
	{
	int axis, axis_reg;
	char *axisname;

	axis = CR_CHAN(insn->chanspec);

	switch (axis) {
	case 0:
	axis_reg = PCI8164_AXIS_X;
	axisname = "X";
	break;
	case 1:
	axis_reg = PCI8164_AXIS_Y;
	axisname = "Y";
	break;
	case 2:
	axis_reg = PCI8164_AXIS_Z;
	axisname = "Z";
	break;
	case 3:
	axis_reg = PCI8164_AXIS_U;
	axisname = "U";
	break;
	default:
	axis_reg = PCI8164_AXIS_X;
	axisname = "X";
	}

	data[0] = inw(dev->iobase + axis_reg + offset);
	dev_dbg(dev->class_dev,
	"pci8164 %s read -> %04X:%04X on axis %s\n",
	action, data[0], data[1], axisname);
	}

	static int adl_pci8164_insn_read_msts(struct comedi_device *dev,
	struct comedi_subdevice *s,
	struct comedi_insn *insn,
	unsigned int *data)
	{
	adl_pci8164_insn_read(dev, s, insn, data, "MSTS", PCI8164_MSTS);
	return 2;
	}

	static int adl_pci8164_insn_read_ssts(struct comedi_device *dev,
	struct comedi_subdevice *s,
	struct comedi_insn *insn,
	unsigned int *data)
	{
	adl_pci8164_insn_read(dev, s, insn, data, "SSTS", PCI8164_SSTS);
	return 2;
	}

	static int adl_pci8164_insn_read_buf0(struct comedi_device *dev,
	struct comedi_subdevice *s,
	struct comedi_insn *insn,
	unsigned int *data)
	{
	adl_pci8164_insn_read(dev, s, insn, data, "BUF0", PCI8164_BUF0);
	return 2;
	}

	static int adl_pci8164_insn_read_buf1(struct comedi_device *dev,
	struct comedi_subdevice *s,
	struct comedi_insn *insn,
	unsigned int *data)
	{
	adl_pci8164_insn_read(dev, s, insn, data, "BUF1", PCI8164_BUF1);
	return 2;
	}

	/*
	all the write commands are the same except for the addition a constant
	* const to the data for outw()
	*/
	static void adl_pci8164_insn_out(struct comedi_device *dev,
	struct comedi_subdevice *s,
	struct comedi_insn *insn,
	unsigned int *data,
	char *action, unsigned short offset)
	{
	unsigned int axis, axis_reg;

	char *axisname;

	axis = CR_CHAN(insn->chanspec);

	switch (axis) {
	case 0:
	axis_reg = PCI8164_AXIS_X;
	axisname = "X";
	break;
	case 1:
	axis_reg = PCI8164_AXIS_Y;
	axisname = "Y";
	break;
	case 2:
	axis_reg = PCI8164_AXIS_Z;
	axisname = "Z";
	break;
	case 3:
	axis_reg = PCI8164_AXIS_U;
	axisname = "U";
	break;
	default:
	axis_reg = PCI8164_AXIS_X;
	axisname = "X";
	}

	outw(data[0], dev->iobase + axis_reg + offset);

	dev_dbg(dev->class_dev,
	"pci8164 %s write -> %04X:%04X on axis %s\n",
	action, data[0], data[1], axisname);

	}

	static int adl_pci8164_insn_write_cmd(struct comedi_device *dev,
	struct comedi_subdevice *s,
	struct comedi_insn *insn,
	unsigned int *data)
	{
	adl_pci8164_insn_out(dev, s, insn, data, "CMD", PCI8164_CMD);
	return 2;
	}

	static int adl_pci8164_insn_write_otp(struct comedi_device *dev,
	struct comedi_subdevice *s,
	struct comedi_insn *insn,
	unsigned int *data)
	{
	adl_pci8164_insn_out(dev, s, insn, data, "OTP", PCI8164_OTP);
	return 2;
	}

	static int adl_pci8164_insn_write_buf0(struct comedi_device *dev,
	struct comedi_subdevice *s,
	struct comedi_insn *insn,
	unsigned int *data)
	{
	adl_pci8164_insn_out(dev, s, insn, data, "BUF0", PCI8164_BUF0);
	return 2;
	}

	static int adl_pci8164_insn_write_buf1(struct comedi_device *dev,
	struct comedi_subdevice *s,
	struct comedi_insn *insn,
	unsigned int *data)
	{
	adl_pci8164_insn_out(dev, s, insn, data, "BUF1", PCI8164_BUF1);
	return 2;
	}

	static int adl_pci8164_auto_attach(struct comedi_device *dev,
	unsigned long context_unused)
	{
	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
	struct comedi_subdevice *s;
	int ret;

	dev->board_name = dev->driver->driver_name;

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

	ret = comedi_alloc_subdevices(dev, 4);
	if (ret)
	return ret;

	s = &dev->subdevices[0];
	s->type = COMEDI_SUBD_PROC;
	s->subdev_flags = SDF_READABLE \| SDF_WRITABLE;
	s->n_chan = 4;
	s->maxdata = 0xffff;
	s->len_chanlist = 4;
	/* s->range_table = &range_axis; */
	s->insn_read = adl_pci8164_insn_read_msts;
	s->insn_write = adl_pci8164_insn_write_cmd;

	s = &dev->subdevices[1];
	s->type = COMEDI_SUBD_PROC;
	s->subdev_flags = SDF_READABLE \| SDF_WRITABLE;
	s->n_chan = 4;
	s->maxdata = 0xffff;
	s->len_chanlist = 4;
	/* s->range_table = &range_axis; */
	s->insn_read = adl_pci8164_insn_read_ssts;
	s->insn_write = adl_pci8164_insn_write_otp;

	s = &dev->subdevices[2];
	s->type = COMEDI_SUBD_PROC;
	s->subdev_flags = SDF_READABLE \| SDF_WRITABLE;
	s->n_chan = 4;
	s->maxdata = 0xffff;
	s->len_chanlist = 4;
	/* s->range_table = &range_axis; */
	s->insn_read = adl_pci8164_insn_read_buf0;
	s->insn_write = adl_pci8164_insn_write_buf0;

	s = &dev->subdevices[3];
	s->type = COMEDI_SUBD_PROC;
	s->subdev_flags = SDF_READABLE \| SDF_WRITABLE;
	s->n_chan = 4;
	s->maxdata = 0xffff;
	s->len_chanlist = 4;
	/* s->range_table = &range_axis; */
	s->insn_read = adl_pci8164_insn_read_buf1;
	s->insn_write = adl_pci8164_insn_write_buf1;

	dev_info(dev->class_dev, "%s attached\n", dev->board_name);

	return 0;
	}

	static void adl_pci8164_detach(struct comedi_device *dev)
	{
	struct pci_dev *pcidev = comedi_to_pci_dev(dev);

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

	static struct comedi_driver adl_pci8164_driver = {
	.driver_name = "adl_pci8164",
	.module = THIS_MODULE,
	.auto_attach = adl_pci8164_auto_attach,
	.detach = adl_pci8164_detach,
	};

	static int adl_pci8164_pci_probe(struct pci_dev *dev,
	const struct pci_device_id *ent)
	{
	return comedi_pci_auto_config(dev, &adl_pci8164_driver);
	}

	static void adl_pci8164_pci_remove(struct pci_dev *dev)
	{
	comedi_pci_auto_unconfig(dev);
	}

	static DEFINE_PCI_DEVICE_TABLE(adl_pci8164_pci_table) = {
	{ PCI_DEVICE(PCI_VENDOR_ID_ADLINK, PCI_DEVICE_ID_PCI8164) },
	{0}
	};
	MODULE_DEVICE_TABLE(pci, adl_pci8164_pci_table);

	static struct pci_driver adl_pci8164_pci_driver = {
	.name = "adl_pci8164",
	.id_table = adl_pci8164_pci_table,
	.probe = adl_pci8164_pci_probe,
	.remove = adl_pci8164_pci_remove,
	};
	module_comedi_pci_driver(adl_pci8164_driver, adl_pci8164_pci_driver);

	MODULE_AUTHOR("Comedi http://www.comedi.org");
	MODULE_DESCRIPTION("Comedi low-level driver");
	MODULE_LICENSE("GPL");