drivers/staging/comedi/drivers/addi_apci_1516.c - manifest_repos/salami - Git at Google

 /*
  * addi_apci_1516.c
  * Copyright (C) 2004,2005  ADDI-DATA GmbH for the source code of this module.
  * Project manager: Eric Stolz
  *
  *	ADDI-DATA GmbH
  *	Dieselstrasse 3
  *	D-77833 Ottersweier
  *	Tel: +19(0)7223/9493-0
  *	Fax: +49(0)7223/9493-92
  *	http://www.addi-data.com
  *	info@addi-data.com
  *
  * 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.,
  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  *
  * You should also find the complete GPL in the COPYING file accompanying
  * this source code.
  */

 #include "../comedidev.h"
 #include "comedi_fc.h"

 /*
  * PCI device ids supported by this driver
  */
 #define PCI_DEVICE_ID_APCI1016		0x1000
 #define PCI_DEVICE_ID_APCI1516		0x1001
 #define PCI_DEVICE_ID_APCI2016		0x1002

 /*
  * PCI bar 1 I/O Register map - Digital input/output
  */
 #define APCI1516_DI_REG			0x00
 #define APCI1516_DO_REG			0x04

 /*
  * PCI bar 2 I/O Register map - Watchdog (APCI-1516 and APCI-2016)
  */
 #define APCI1516_WDOG_REG		0x00
 #define APCI1516_WDOG_RELOAD_REG	0x04
 #define APCI1516_WDOG_CTRL_REG		0x0c
 #define APCI1516_WDOG_CTRL_ENABLE	(1 << 0)
 #define APCI1516_WDOG_CTRL_SW_TRIG	(1 << 9)
 #define APCI1516_WDOG_STATUS_REG	0x10
 #define APCI1516_WDOG_STATUS_ENABLED	(1 << 0)
 #define APCI1516_WDOG_STATUS_SW_TRIG	(1 << 1)

 struct apci1516_boardinfo {
 	const char *name;
 	unsigned short device;
 	int di_nchan;
 	int do_nchan;
 	int has_wdog;
 };

 static const struct apci1516_boardinfo apci1516_boardtypes[] = {
 	{
 		.name		= "apci1016",
 		.device		= PCI_DEVICE_ID_APCI1016,
 		.di_nchan	= 16,
 	}, {
 		.name		= "apci1516",
 		.device		= PCI_DEVICE_ID_APCI1516,
 		.di_nchan	= 8,
 		.do_nchan	= 8,
 		.has_wdog	= 1,
 	}, {
 		.name		= "apci2016",
 		.device		= PCI_DEVICE_ID_APCI2016,
 		.do_nchan	= 16,
 		.has_wdog	= 1,
 	},
 };

 struct apci1516_private {
 	unsigned long wdog_iobase;
 	unsigned int ctrl;
 };

 static int apci1516_di_insn_bits(struct comedi_device *dev,
 				 struct comedi_subdevice *s,
 				 struct comedi_insn *insn,
 				 unsigned int *data)
 {
 	data[1] = inw(dev->iobase + APCI1516_DI_REG);

 	return insn->n;
 }

 static int apci1516_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];

 	s->state = inw(dev->iobase + APCI1516_DO_REG);
 	if (mask) {
 		s->state &= ~mask;
 		s->state |= (bits & mask);

 		outw(s->state, dev->iobase + APCI1516_DO_REG);
 	}

 	data[1] = s->state;

 	return insn->n;
 }

 /*
  * The watchdog subdevice is configured with two INSN_CONFIG instructions:
  *
  * Enable the watchdog and set the reload timeout:
  *	data[0] = INSN_CONFIG_ARM
  *	data[1] = timeout reload value
  *
  * Disable the watchdog:
  *	data[0] = INSN_CONFIG_DISARM
  */
 static int apci1516_wdog_insn_config(struct comedi_device *dev,
 				     struct comedi_subdevice *s,
 				     struct comedi_insn *insn,
 				     unsigned int *data)
 {
 	struct apci1516_private *devpriv = dev->private;
 	unsigned int reload;

 	switch (data[0]) {
 	case INSN_CONFIG_ARM:
 		devpriv->ctrl = APCI1516_WDOG_CTRL_ENABLE;
 		reload = data[1] & s->maxdata;
 		outw(reload, devpriv->wdog_iobase + APCI1516_WDOG_RELOAD_REG);

 		/* Time base is 20ms, let the user know the timeout */
 		dev_info(dev->class_dev, "watchdog enabled, timeout:%dms\n",
 			20 * reload + 20);
 		break;
 	case INSN_CONFIG_DISARM:
 		devpriv->ctrl = 0;
 		break;
 	default:
 		return -EINVAL;
 	}

 	outw(devpriv->ctrl, devpriv->wdog_iobase + APCI1516_WDOG_CTRL_REG);

 	return insn->n;
 }

 static int apci1516_wdog_insn_write(struct comedi_device *dev,
 				    struct comedi_subdevice *s,
 				    struct comedi_insn *insn,
 				    unsigned int *data)
 {
 	struct apci1516_private *devpriv = dev->private;
 	int i;

 	if (devpriv->ctrl == 0) {
 		dev_warn(dev->class_dev, "watchdog is disabled\n");
 		return -EINVAL;
 	}

 	/* "ping" the watchdog */
 	for (i = 0; i < insn->n; i++) {
 		outw(devpriv->ctrl | APCI1516_WDOG_CTRL_SW_TRIG,
 			devpriv->wdog_iobase + APCI1516_WDOG_CTRL_REG);
 	}

 	return insn->n;
 }

 static int apci1516_wdog_insn_read(struct comedi_device *dev,
 				   struct comedi_subdevice *s,
 				   struct comedi_insn *insn,
 				   unsigned int *data)
 {
 	struct apci1516_private *devpriv = dev->private;
 	int i;

 	for (i = 0; i < insn->n; i++)
 		data[i] = inw(devpriv->wdog_iobase + APCI1516_WDOG_STATUS_REG);

 	return insn->n;
 }

 static int apci1516_reset(struct comedi_device *dev)
 {
 	const struct apci1516_boardinfo *this_board = comedi_board(dev);
 	struct apci1516_private *devpriv = dev->private;

 	if (!this_board->has_wdog)
 		return 0;

 	outw(0x0, dev->iobase + APCI1516_DO_REG);
 	outw(0x0, devpriv->wdog_iobase + APCI1516_WDOG_CTRL_REG);
 	outw(0x0, devpriv->wdog_iobase + APCI1516_WDOG_RELOAD_REG);

 	return 0;
 }

 static const void *apci1516_find_boardinfo(struct comedi_device *dev,
 					   struct pci_dev *pcidev)
 {
 	const struct apci1516_boardinfo *this_board;
 	int i;

 	for (i = 0; i < dev->driver->num_names; i++) {
 		this_board = &apci1516_boardtypes[i];
 		if (this_board->device == pcidev->device)
 			return this_board;
 	}
 	return NULL;
 }

 static int apci1516_auto_attach(struct comedi_device *dev,
 					  unsigned long context_unused)
 {
 	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
 	const struct apci1516_boardinfo *this_board;
 	struct apci1516_private *devpriv;
 	struct comedi_subdevice *s;
 	int ret;

 	this_board = apci1516_find_boardinfo(dev, pcidev);
 	if (!this_board)
 		return -ENODEV;
 	dev->board_ptr = this_board;
 	dev->board_name = this_board->name;

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

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

 	dev->iobase = pci_resource_start(pcidev, 1);
 	devpriv->wdog_iobase = pci_resource_start(pcidev, 2);

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

 	/* Initialize the digital input subdevice */
 	s = &dev->subdevices[0];
 	if (this_board->di_nchan) {
 		s->type		= COMEDI_SUBD_DI;
 		s->subdev_flags	= SDF_READABLE;
 		s->n_chan	= this_board->di_nchan;
 		s->maxdata	= 1;
 		s->range_table	= &range_digital;
 		s->insn_bits	= apci1516_di_insn_bits;
 	} else {
 		s->type		= COMEDI_SUBD_UNUSED;
 	}

 	/* Initialize the digital output subdevice */
 	s = &dev->subdevices[1];
 	if (this_board->do_nchan) {
 		s->type		= COMEDI_SUBD_DO;
 		s->subdev_flags	= SDF_WRITEABLE;
 		s->n_chan	= this_board->do_nchan;
 		s->maxdata	= 1;
 		s->range_table	= &range_digital;
 		s->insn_bits	= apci1516_do_insn_bits;
 	} else {
 		s->type		= COMEDI_SUBD_UNUSED;
 	}

 	/* Initialize the watchdog subdevice */
 	s = &dev->subdevices[2];
 	if (this_board->has_wdog) {
 		s->type		= COMEDI_SUBD_TIMER;
 		s->subdev_flags	= SDF_WRITEABLE;
 		s->n_chan	= 1;
 		s->maxdata	= 0xff;
 		s->insn_write	= apci1516_wdog_insn_write;
 		s->insn_read	= apci1516_wdog_insn_read;
 		s->insn_config	= apci1516_wdog_insn_config;
 	} else {
 		s->type		= COMEDI_SUBD_UNUSED;
 	}

 	apci1516_reset(dev);
 	return 0;
 }

 static void apci1516_detach(struct comedi_device *dev)
 {
 	struct pci_dev *pcidev = comedi_to_pci_dev(dev);

 	if (dev->iobase) {
 		apci1516_reset(dev);
 		comedi_pci_disable(pcidev);
 	}
 }

 static struct comedi_driver apci1516_driver = {
 	.driver_name	= "addi_apci_1516",
 	.module		= THIS_MODULE,
 	.auto_attach	= apci1516_auto_attach,
 	.detach		= apci1516_detach,
 };

 static int apci1516_pci_probe(struct pci_dev *dev,
 					const struct pci_device_id *ent)
 {
 	return comedi_pci_auto_config(dev, &apci1516_driver);
 }

 static void apci1516_pci_remove(struct pci_dev *dev)
 {
 	comedi_pci_auto_unconfig(dev);
 }

 static DEFINE_PCI_DEVICE_TABLE(apci1516_pci_table) = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, PCI_DEVICE_ID_APCI1016) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, PCI_DEVICE_ID_APCI1516) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, PCI_DEVICE_ID_APCI2016) },
 	{ 0 }
 };
 MODULE_DEVICE_TABLE(pci, apci1516_pci_table);

 static struct pci_driver apci1516_pci_driver = {
 	.name		= "addi_apci_1516",
 	.id_table	= apci1516_pci_table,
 	.probe		= apci1516_pci_probe,
 	.remove		= apci1516_pci_remove,
 };
 module_comedi_pci_driver(apci1516_driver, apci1516_pci_driver);

 MODULE_DESCRIPTION("ADDI-DATA APCI-1016/1516/2016, 16 channel DIO boards");
 MODULE_AUTHOR("Comedi http://www.comedi.org");
 MODULE_LICENSE("GPL");
	/*
	* addi_apci_1516.c
	* Copyright (C) 2004,2005 ADDI-DATA GmbH for the source code of this module.
	* Project manager: Eric Stolz
	*
	* ADDI-DATA GmbH
	* Dieselstrasse 3
	* D-77833 Ottersweier
	* Tel: +19(0)7223/9493-0
	* Fax: +49(0)7223/9493-92
	* http://www.addi-data.com
	* info@addi-data.com
	*
	* 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.,
	* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	*
	* You should also find the complete GPL in the COPYING file accompanying
	* this source code.
	*/

	#include "../comedidev.h"
	#include "comedi_fc.h"

	/*
	* PCI device ids supported by this driver
	*/
	#define PCI_DEVICE_ID_APCI1016 0x1000
	#define PCI_DEVICE_ID_APCI1516 0x1001
	#define PCI_DEVICE_ID_APCI2016 0x1002

	/*
	* PCI bar 1 I/O Register map - Digital input/output
	*/
	#define APCI1516_DI_REG 0x00
	#define APCI1516_DO_REG 0x04

	/*
	* PCI bar 2 I/O Register map - Watchdog (APCI-1516 and APCI-2016)
	*/
	#define APCI1516_WDOG_REG 0x00
	#define APCI1516_WDOG_RELOAD_REG 0x04
	#define APCI1516_WDOG_CTRL_REG 0x0c
	#define APCI1516_WDOG_CTRL_ENABLE (1 << 0)
	#define APCI1516_WDOG_CTRL_SW_TRIG (1 << 9)
	#define APCI1516_WDOG_STATUS_REG 0x10
	#define APCI1516_WDOG_STATUS_ENABLED (1 << 0)
	#define APCI1516_WDOG_STATUS_SW_TRIG (1 << 1)

	struct apci1516_boardinfo {
	const char *name;
	unsigned short device;
	int di_nchan;
	int do_nchan;
	int has_wdog;
	};

	static const struct apci1516_boardinfo apci1516_boardtypes[] = {
	{
	.name = "apci1016",
	.device = PCI_DEVICE_ID_APCI1016,
	.di_nchan = 16,
	}, {
	.name = "apci1516",
	.device = PCI_DEVICE_ID_APCI1516,
	.di_nchan = 8,
	.do_nchan = 8,
	.has_wdog = 1,
	}, {
	.name = "apci2016",
	.device = PCI_DEVICE_ID_APCI2016,
	.do_nchan = 16,
	.has_wdog = 1,
	},
	};

	struct apci1516_private {
	unsigned long wdog_iobase;
	unsigned int ctrl;
	};

	static int apci1516_di_insn_bits(struct comedi_device *dev,
	struct comedi_subdevice *s,
	struct comedi_insn *insn,
	unsigned int *data)
	{
	data[1] = inw(dev->iobase + APCI1516_DI_REG);

	return insn->n;
	}

	static int apci1516_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];

	s->state = inw(dev->iobase + APCI1516_DO_REG);
	if (mask) {
	s->state &= ~mask;
	s->state \|= (bits & mask);

	outw(s->state, dev->iobase + APCI1516_DO_REG);
	}

	data[1] = s->state;

	return insn->n;
	}

	/*
	* The watchdog subdevice is configured with two INSN_CONFIG instructions:
	*
	* Enable the watchdog and set the reload timeout:
	* data[0] = INSN_CONFIG_ARM
	* data[1] = timeout reload value
	*
	* Disable the watchdog:
	* data[0] = INSN_CONFIG_DISARM
	*/
	static int apci1516_wdog_insn_config(struct comedi_device *dev,
	struct comedi_subdevice *s,
	struct comedi_insn *insn,
	unsigned int *data)
	{
	struct apci1516_private *devpriv = dev->private;
	unsigned int reload;

	switch (data[0]) {
	case INSN_CONFIG_ARM:
	devpriv->ctrl = APCI1516_WDOG_CTRL_ENABLE;
	reload = data[1] & s->maxdata;
	outw(reload, devpriv->wdog_iobase + APCI1516_WDOG_RELOAD_REG);

	/* Time base is 20ms, let the user know the timeout */
	dev_info(dev->class_dev, "watchdog enabled, timeout:%dms\n",
	20 * reload + 20);
	break;
	case INSN_CONFIG_DISARM:
	devpriv->ctrl = 0;
	break;
	default:
	return -EINVAL;
	}

	outw(devpriv->ctrl, devpriv->wdog_iobase + APCI1516_WDOG_CTRL_REG);

	return insn->n;
	}

	static int apci1516_wdog_insn_write(struct comedi_device *dev,
	struct comedi_subdevice *s,
	struct comedi_insn *insn,
	unsigned int *data)
	{
	struct apci1516_private *devpriv = dev->private;
	int i;

	if (devpriv->ctrl == 0) {
	dev_warn(dev->class_dev, "watchdog is disabled\n");
	return -EINVAL;
	}

	/* "ping" the watchdog */
	for (i = 0; i < insn->n; i++) {
	outw(devpriv->ctrl \| APCI1516_WDOG_CTRL_SW_TRIG,
	devpriv->wdog_iobase + APCI1516_WDOG_CTRL_REG);
	}

	return insn->n;
	}

	static int apci1516_wdog_insn_read(struct comedi_device *dev,
	struct comedi_subdevice *s,
	struct comedi_insn *insn,
	unsigned int *data)
	{
	struct apci1516_private *devpriv = dev->private;
	int i;

	for (i = 0; i < insn->n; i++)
	data[i] = inw(devpriv->wdog_iobase + APCI1516_WDOG_STATUS_REG);

	return insn->n;
	}

	static int apci1516_reset(struct comedi_device *dev)
	{
	const struct apci1516_boardinfo *this_board = comedi_board(dev);
	struct apci1516_private *devpriv = dev->private;

	if (!this_board->has_wdog)
	return 0;

	outw(0x0, dev->iobase + APCI1516_DO_REG);
	outw(0x0, devpriv->wdog_iobase + APCI1516_WDOG_CTRL_REG);
	outw(0x0, devpriv->wdog_iobase + APCI1516_WDOG_RELOAD_REG);

	return 0;
	}

	static const void apci1516_find_boardinfo(struct comedi_device dev,
	struct pci_dev *pcidev)
	{
	const struct apci1516_boardinfo *this_board;
	int i;

	for (i = 0; i < dev->driver->num_names; i++) {
	this_board = &apci1516_boardtypes[i];
	if (this_board->device == pcidev->device)
	return this_board;
	}
	return NULL;
	}

	static int apci1516_auto_attach(struct comedi_device *dev,
	unsigned long context_unused)
	{
	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
	const struct apci1516_boardinfo *this_board;
	struct apci1516_private *devpriv;
	struct comedi_subdevice *s;
	int ret;

	this_board = apci1516_find_boardinfo(dev, pcidev);
	if (!this_board)
	return -ENODEV;
	dev->board_ptr = this_board;
	dev->board_name = this_board->name;

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

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

	dev->iobase = pci_resource_start(pcidev, 1);
	devpriv->wdog_iobase = pci_resource_start(pcidev, 2);

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

	/* Initialize the digital input subdevice */
	s = &dev->subdevices[0];
	if (this_board->di_nchan) {
	s->type = COMEDI_SUBD_DI;
	s->subdev_flags = SDF_READABLE;
	s->n_chan = this_board->di_nchan;
	s->maxdata = 1;
	s->range_table = &range_digital;
	s->insn_bits = apci1516_di_insn_bits;
	} else {
	s->type = COMEDI_SUBD_UNUSED;
	}

	/* Initialize the digital output subdevice */
	s = &dev->subdevices[1];
	if (this_board->do_nchan) {
	s->type = COMEDI_SUBD_DO;
	s->subdev_flags = SDF_WRITEABLE;
	s->n_chan = this_board->do_nchan;
	s->maxdata = 1;
	s->range_table = &range_digital;
	s->insn_bits = apci1516_do_insn_bits;
	} else {
	s->type = COMEDI_SUBD_UNUSED;
	}

	/* Initialize the watchdog subdevice */
	s = &dev->subdevices[2];
	if (this_board->has_wdog) {
	s->type = COMEDI_SUBD_TIMER;
	s->subdev_flags = SDF_WRITEABLE;
	s->n_chan = 1;
	s->maxdata = 0xff;
	s->insn_write = apci1516_wdog_insn_write;
	s->insn_read = apci1516_wdog_insn_read;
	s->insn_config = apci1516_wdog_insn_config;
	} else {
	s->type = COMEDI_SUBD_UNUSED;
	}

	apci1516_reset(dev);
	return 0;
	}

	static void apci1516_detach(struct comedi_device *dev)
	{
	struct pci_dev *pcidev = comedi_to_pci_dev(dev);

	if (dev->iobase) {
	apci1516_reset(dev);
	comedi_pci_disable(pcidev);
	}
	}

	static struct comedi_driver apci1516_driver = {
	.driver_name = "addi_apci_1516",
	.module = THIS_MODULE,
	.auto_attach = apci1516_auto_attach,
	.detach = apci1516_detach,
	};

	static int apci1516_pci_probe(struct pci_dev *dev,
	const struct pci_device_id *ent)
	{
	return comedi_pci_auto_config(dev, &apci1516_driver);
	}

	static void apci1516_pci_remove(struct pci_dev *dev)
	{
	comedi_pci_auto_unconfig(dev);
	}

	static DEFINE_PCI_DEVICE_TABLE(apci1516_pci_table) = {
	{ PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, PCI_DEVICE_ID_APCI1016) },
	{ PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, PCI_DEVICE_ID_APCI1516) },
	{ PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, PCI_DEVICE_ID_APCI2016) },
	{ 0 }
	};
	MODULE_DEVICE_TABLE(pci, apci1516_pci_table);

	static struct pci_driver apci1516_pci_driver = {
	.name = "addi_apci_1516",
	.id_table = apci1516_pci_table,
	.probe = apci1516_pci_probe,
	.remove = apci1516_pci_remove,
	};
	module_comedi_pci_driver(apci1516_driver, apci1516_pci_driver);

	MODULE_DESCRIPTION("ADDI-DATA APCI-1016/1516/2016, 16 channel DIO boards");
	MODULE_AUTHOR("Comedi http://www.comedi.org");
	MODULE_LICENSE("GPL");