[deliverable/linux.git] / drivers / staging / comedi / drivers / addi_apci_3501.c

/*
 * addi_apci_3501.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.
 */

#include <linux/module.h>
#include <linux/pci.h>
#include <linux/interrupt.h>
#include <linux/sched.h>

#include "../comedidev.h"
#include "comedi_fc.h"
#include "amcc_s5933.h"

/*
 * PCI bar 1 register I/O map
 */
#define APCI3501_AO_CTRL_STATUS_REG		0x00
#define APCI3501_AO_CTRL_BIPOLAR		(1 << 0)
#define APCI3501_AO_STATUS_READY		(1 << 8)
#define APCI3501_AO_DATA_REG			0x04
#define APCI3501_AO_DATA_CHAN(x)		((x) << 0)
#define APCI3501_AO_DATA_VAL(x)			((x) << 8)
#define APCI3501_AO_DATA_BIPOLAR		(1 << 31)
#define APCI3501_AO_TRIG_SCS_REG		0x08
#define APCI3501_TIMER_SYNC_REG			0x20
#define APCI3501_TIMER_RELOAD_REG		0x24
#define APCI3501_TIMER_TIMEBASE_REG		0x28
#define APCI3501_TIMER_CTRL_REG			0x2c
#define APCI3501_TIMER_STATUS_REG		0x30
#define APCI3501_TIMER_IRQ_REG			0x34
#define APCI3501_TIMER_WARN_RELOAD_REG		0x38
#define APCI3501_TIMER_WARN_TIMEBASE_REG	0x3c
#define APCI3501_DO_REG				0x40
#define APCI3501_DI_REG				0x50

/*
 * AMCC S5933 NVRAM
 */
#define NVRAM_USER_DATA_START	0x100

#define NVCMD_BEGIN_READ	(0x7 << 5)
#define NVCMD_LOAD_LOW		(0x4 << 5)
#define NVCMD_LOAD_HIGH		(0x5 << 5)

/*
 * Function types stored in the eeprom
 */
#define EEPROM_DIGITALINPUT		0
#define EEPROM_DIGITALOUTPUT		1
#define EEPROM_ANALOGINPUT		2
#define EEPROM_ANALOGOUTPUT		3
#define EEPROM_TIMER			4
#define EEPROM_WATCHDOG			5
#define EEPROM_TIMER_WATCHDOG_COUNTER	10

struct apci3501_private {
	int i_IobaseAmcc;
	struct task_struct *tsk_Current;
	unsigned char b_TimerSelectMode;
};

static struct comedi_lrange apci3501_ao_range = {
	2, {
		BIP_RANGE(10),
		UNI_RANGE(10)
	}
};

static int apci3501_wait_for_dac(struct comedi_device *dev)
{
	unsigned int status;

	do {
		status = inl(dev->iobase + APCI3501_AO_CTRL_STATUS_REG);
	} while (!(status & APCI3501_AO_STATUS_READY));

	return 0;
}

static int apci3501_ao_insn_write(struct comedi_device *dev,
				  struct comedi_subdevice *s,
				  struct comedi_insn *insn,
				  unsigned int *data)
{
	unsigned int chan = CR_CHAN(insn->chanspec);
	unsigned int range = CR_RANGE(insn->chanspec);
	unsigned int val = 0;
	int i;
	int ret;

	/*
	 * All analog output channels have the same output range.
	 *	14-bit bipolar: 0-10V
	 *	13-bit unipolar: +/-10V
	 * Changing the range of one channel changes all of them!
	 */
	if (range) {
		outl(0, dev->iobase + APCI3501_AO_CTRL_STATUS_REG);
	} else {
		val |= APCI3501_AO_DATA_BIPOLAR;
		outl(APCI3501_AO_CTRL_BIPOLAR,
		     dev->iobase + APCI3501_AO_CTRL_STATUS_REG);
	}

	val |= APCI3501_AO_DATA_CHAN(chan);

	for (i = 0; i < insn->n; i++) {
		if (range == 1) {
			if (data[i] > 0x1fff) {
				dev_err(dev->class_dev,
					"Unipolar resolution is only 13-bits\n");
				return -EINVAL;
			}
		}

		ret = apci3501_wait_for_dac(dev);
		if (ret)
			return ret;

		outl(val | APCI3501_AO_DATA_VAL(data[i]),
		     dev->iobase + APCI3501_AO_DATA_REG);
	}

	return insn->n;
}

#include "addi-data/hwdrv_apci3501.c"

static int apci3501_di_insn_bits(struct comedi_device *dev,
				 struct comedi_subdevice *s,
				 struct comedi_insn *insn,
				 unsigned int *data)
{
	data[1] = inl(dev->iobase + APCI3501_DI_REG) & 0x3;

	return insn->n;
}

static int apci3501_do_insn_bits(struct comedi_device *dev,
				 struct comedi_subdevice *s,
				 struct comedi_insn *insn,
				 unsigned int *data)
{
	s->state = inl(dev->iobase + APCI3501_DO_REG);

	if (comedi_dio_update_state(s, data))
		outl(s->state, dev->iobase + APCI3501_DO_REG);

	data[1] = s->state;

	return insn->n;
}

static void apci3501_eeprom_wait(unsigned long iobase)
{
	unsigned char val;

	do {
		val = inb(iobase + AMCC_OP_REG_MCSR_NVCMD);
	} while (val & 0x80);
}

static unsigned short apci3501_eeprom_readw(unsigned long iobase,
					    unsigned short addr)
{
	unsigned short val = 0;
	unsigned char tmp;
	unsigned char i;

	/* Add the offset to the start of the user data */
	addr += NVRAM_USER_DATA_START;

	for (i = 0; i < 2; i++) {
		/* Load the low 8 bit address */
		outb(NVCMD_LOAD_LOW, iobase + AMCC_OP_REG_MCSR_NVCMD);
		apci3501_eeprom_wait(iobase);
		outb((addr + i) & 0xff, iobase + AMCC_OP_REG_MCSR_NVDATA);
		apci3501_eeprom_wait(iobase);

		/* Load the high 8 bit address */
		outb(NVCMD_LOAD_HIGH, iobase + AMCC_OP_REG_MCSR_NVCMD);
		apci3501_eeprom_wait(iobase);
		outb(((addr + i) >> 8) & 0xff,
			iobase + AMCC_OP_REG_MCSR_NVDATA);
		apci3501_eeprom_wait(iobase);

		/* Read the eeprom data byte */
		outb(NVCMD_BEGIN_READ, iobase + AMCC_OP_REG_MCSR_NVCMD);
		apci3501_eeprom_wait(iobase);
		tmp = inb(iobase + AMCC_OP_REG_MCSR_NVDATA);
		apci3501_eeprom_wait(iobase);

		if (i == 0)
			val |= tmp;
		else
			val |= (tmp << 8);
	}

	return val;
}

static int apci3501_eeprom_get_ao_n_chan(struct comedi_device *dev)
{
	struct apci3501_private *devpriv = dev->private;
	unsigned long iobase = devpriv->i_IobaseAmcc;
	unsigned char nfuncs;
	int i;

	nfuncs = apci3501_eeprom_readw(iobase, 10) & 0xff;

	/* Read functionality details */
	for (i = 0; i < nfuncs; i++) {
		unsigned short offset = i * 4;
		unsigned short addr;
		unsigned char func;
		unsigned short val;

		func = apci3501_eeprom_readw(iobase, 12 + offset) & 0x3f;
		addr = apci3501_eeprom_readw(iobase, 14 + offset);

		if (func == EEPROM_ANALOGOUTPUT) {
			val = apci3501_eeprom_readw(iobase, addr + 10);
			return (val >> 4) & 0x3ff;
		}
	}
	return 0;
}

static int apci3501_eeprom_insn_read(struct comedi_device *dev,
				     struct comedi_subdevice *s,
				     struct comedi_insn *insn,
				     unsigned int *data)
{
	struct apci3501_private *devpriv = dev->private;
	unsigned short addr = CR_CHAN(insn->chanspec);

	data[0] = apci3501_eeprom_readw(devpriv->i_IobaseAmcc, 2 * addr);

	return insn->n;
}

static irqreturn_t apci3501_interrupt(int irq, void *d)
{
	struct comedi_device *dev = d;
	struct apci3501_private *devpriv = dev->private;
	unsigned int ui_Timer_AOWatchdog;
	unsigned long ul_Command1;
	int i_temp;

	/*  Disable Interrupt */
	ul_Command1 = inl(dev->iobase + APCI3501_TIMER_CTRL_REG);
	ul_Command1 = (ul_Command1 & 0xFFFFF9FDul);
	outl(ul_Command1, dev->iobase + APCI3501_TIMER_CTRL_REG);

	ui_Timer_AOWatchdog = inl(dev->iobase + APCI3501_TIMER_IRQ_REG) & 0x1;
	if ((!ui_Timer_AOWatchdog)) {
		comedi_error(dev, "IRQ from unknown source");
		return IRQ_NONE;
	}

	/* Enable Interrupt Send a signal to from kernel to user space */
	send_sig(SIGIO, devpriv->tsk_Current, 0);
	ul_Command1 = inl(dev->iobase + APCI3501_TIMER_CTRL_REG);
	ul_Command1 = ((ul_Command1 & 0xFFFFF9FDul) | 1 << 1);
	outl(ul_Command1, dev->iobase + APCI3501_TIMER_CTRL_REG);
	i_temp = inl(dev->iobase + APCI3501_TIMER_STATUS_REG) & 0x1;

	return IRQ_HANDLED;
}

static int apci3501_reset(struct comedi_device *dev)
{
	unsigned int val;
	int chan;
	int ret;

	/* Reset all digital outputs to "0" */
	outl(0x0, dev->iobase + APCI3501_DO_REG);

	/* Default all analog outputs to 0V (bipolar) */
	outl(APCI3501_AO_CTRL_BIPOLAR,
	     dev->iobase + APCI3501_AO_CTRL_STATUS_REG);
	val = APCI3501_AO_DATA_BIPOLAR | APCI3501_AO_DATA_VAL(0);

	/* Set all analog output channels */
	for (chan = 0; chan < 8; chan++) {
		ret = apci3501_wait_for_dac(dev);
		if (ret) {
			dev_warn(dev->class_dev,
				 "%s: DAC not-ready for channel %i\n",
				 __func__, chan);
		} else {
			outl(val | APCI3501_AO_DATA_CHAN(chan),
			     dev->iobase + APCI3501_AO_DATA_REG);
		}
	}

	return 0;
}

static int apci3501_auto_attach(struct comedi_device *dev,
				unsigned long context_unused)
{
	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
	struct apci3501_private *devpriv;
	struct comedi_subdevice *s;
	int ao_n_chan;
	int ret;

	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
	if (!devpriv)
		return -ENOMEM;

	ret = comedi_pci_enable(dev);
	if (ret)
		return ret;

	dev->iobase = pci_resource_start(pcidev, 1);
	devpriv->i_IobaseAmcc = pci_resource_start(pcidev, 0);

	ao_n_chan = apci3501_eeprom_get_ao_n_chan(dev);

	if (pcidev->irq > 0) {
		ret = request_irq(pcidev->irq, apci3501_interrupt, IRQF_SHARED,
				  dev->board_name, dev);
		if (ret == 0)
			dev->irq = pcidev->irq;
	}

	ret = comedi_alloc_subdevices(dev, 5);
	if (ret)
		return ret;

	/* Initialize the analog output subdevice */
	s = &dev->subdevices[0];
	if (ao_n_chan) {
		s->type		= COMEDI_SUBD_AO;
		s->subdev_flags	= SDF_WRITEABLE | SDF_GROUND | SDF_COMMON;
		s->n_chan	= ao_n_chan;
		s->maxdata	= 0x3fff;
		s->range_table	= &apci3501_ao_range;
		s->insn_write	= apci3501_ao_insn_write;
	} else {
		s->type		= COMEDI_SUBD_UNUSED;
	}

	/* Initialize the digital input subdevice */
	s = &dev->subdevices[1];
	s->type		= COMEDI_SUBD_DI;
	s->subdev_flags	= SDF_READABLE;
	s->n_chan	= 2;
	s->maxdata	= 1;
	s->range_table	= &range_digital;
	s->insn_bits	= apci3501_di_insn_bits;

	/* Initialize the digital output subdevice */
	s = &dev->subdevices[2];
	s->type		= COMEDI_SUBD_DO;
	s->subdev_flags	= SDF_WRITEABLE;
	s->n_chan	= 2;
	s->maxdata	= 1;
	s->range_table	= &range_digital;
	s->insn_bits	= apci3501_do_insn_bits;

	/* Initialize the timer/watchdog subdevice */
	s = &dev->subdevices[3];
	s->type = COMEDI_SUBD_TIMER;
	s->subdev_flags = SDF_WRITEABLE | SDF_GROUND | SDF_COMMON;
	s->n_chan = 1;
	s->maxdata = 0;
	s->len_chanlist = 1;
	s->range_table = &range_digital;
	s->insn_write = i_APCI3501_StartStopWriteTimerCounterWatchdog;
	s->insn_read = i_APCI3501_ReadTimerCounterWatchdog;
	s->insn_config = i_APCI3501_ConfigTimerCounterWatchdog;

	/* Initialize the eeprom subdevice */
	s = &dev->subdevices[4];
	s->type		= COMEDI_SUBD_MEMORY;
	s->subdev_flags	= SDF_READABLE | SDF_INTERNAL;
	s->n_chan	= 256;
	s->maxdata	= 0xffff;
	s->insn_read	= apci3501_eeprom_insn_read;

	apci3501_reset(dev);
	return 0;
}

static void apci3501_detach(struct comedi_device *dev)
{
	if (dev->iobase)
		apci3501_reset(dev);
	if (dev->irq)
		free_irq(dev->irq, dev);
	comedi_pci_disable(dev);
}

static struct comedi_driver apci3501_driver = {
	.driver_name	= "addi_apci_3501",
	.module		= THIS_MODULE,
	.auto_attach	= apci3501_auto_attach,
	.detach		= apci3501_detach,
};

static int apci3501_pci_probe(struct pci_dev *dev,
			      const struct pci_device_id *id)
{
	return comedi_pci_auto_config(dev, &apci3501_driver, id->driver_data);
}

static DEFINE_PCI_DEVICE_TABLE(apci3501_pci_table) = {
	{ PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, 0x3001) },
	{ 0 }
};
MODULE_DEVICE_TABLE(pci, apci3501_pci_table);

static struct pci_driver apci3501_pci_driver = {
	.name		= "addi_apci_3501",
	.id_table	= apci3501_pci_table,
	.probe		= apci3501_pci_probe,
	.remove		= comedi_pci_auto_unconfig,
};
module_comedi_pci_driver(apci3501_driver, apci3501_pci_driver);

MODULE_DESCRIPTION("ADDI-DATA APCI-3501 Analog output board");
MODULE_AUTHOR("Comedi http://www.comedi.org");
MODULE_LICENSE("GPL");
Commit	Line	Data
027f58c6 HS	1	/*
	2	* addi_apci_3501.c
	3	* Copyright (C) 2004,2005 ADDI-DATA GmbH for the source code of this module.
	4	* Project manager: Eric Stolz
	5	*
	6	* ADDI-DATA GmbH
	7	* Dieselstrasse 3
	8	* D-77833 Ottersweier
	9	* Tel: +19(0)7223/9493-0
	10	* Fax: +49(0)7223/9493-92
	11	* http://www.addi-data.com
	12	* info@addi-data.com
	13	*
	14	* This program is free software; you can redistribute it and/or modify it
	15	* under the terms of the GNU General Public License as published by the
	16	* Free Software Foundation; either version 2 of the License, or (at your
	17	* option) any later version.
	18	*
	19	* This program is distributed in the hope that it will be useful, but WITHOUT
	20	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	21	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
	22	* more details.
027f58c6 HS	23	*/
027f58c6 HS	24
ce157f80	25	#include <linux/module.h>
33782dd5	26	#include <linux/pci.h>
abac8b54 HS	27	#include <linux/interrupt.h>
	28	#include <linux/sched.h>
	29
3d41c443 HS	30	#include "../comedidev.h"
3d41c443 HS	31	#include "comedi_fc.h"
bf36f012	32	#include "amcc_s5933.h"
3d41c443	33
1bc5062a HS	34	/*
	35	* PCI bar 1 register I/O map
	36	*/
	37	#define APCI3501_AO_CTRL_STATUS_REG 0x00
	38	#define APCI3501_AO_CTRL_BIPOLAR (1 << 0)
	39	#define APCI3501_AO_STATUS_READY (1 << 8)
	40	#define APCI3501_AO_DATA_REG 0x04
26273698 HS	41	#define APCI3501_AO_DATA_CHAN(x) ((x) << 0)
	42	#define APCI3501_AO_DATA_VAL(x) ((x) << 8)
	43	#define APCI3501_AO_DATA_BIPOLAR (1 << 31)
1bc5062a	44	#define APCI3501_AO_TRIG_SCS_REG 0x08
9798df72 HS	45	#define APCI3501_TIMER_SYNC_REG 0x20
	46	#define APCI3501_TIMER_RELOAD_REG 0x24
	47	#define APCI3501_TIMER_TIMEBASE_REG 0x28
	48	#define APCI3501_TIMER_CTRL_REG 0x2c
	49	#define APCI3501_TIMER_STATUS_REG 0x30
	50	#define APCI3501_TIMER_IRQ_REG 0x34
	51	#define APCI3501_TIMER_WARN_RELOAD_REG 0x38
	52	#define APCI3501_TIMER_WARN_TIMEBASE_REG 0x3c
1bc5062a HS	53	#define APCI3501_DO_REG 0x40
	54	#define APCI3501_DI_REG 0x50
	55
25b9b873 HS	56	/*
	57	* AMCC S5933 NVRAM
	58	*/
	59	#define NVRAM_USER_DATA_START 0x100
	60
	61	#define NVCMD_BEGIN_READ (0x7 << 5)
	62	#define NVCMD_LOAD_LOW (0x4 << 5)
	63	#define NVCMD_LOAD_HIGH (0x5 << 5)
	64
	65	/*
	66	* Function types stored in the eeprom
	67	*/
	68	#define EEPROM_DIGITALINPUT 0
	69	#define EEPROM_DIGITALOUTPUT 1
	70	#define EEPROM_ANALOGINPUT 2
	71	#define EEPROM_ANALOGOUTPUT 3
	72	#define EEPROM_TIMER 4
	73	#define EEPROM_WATCHDOG 5
	74	#define EEPROM_TIMER_WATCHDOG_COUNTER 10
	75
53b28a23 HS	76	struct apci3501_private {
	77	int i_IobaseAmcc;
	78	struct task_struct *tsk_Current;
	79	unsigned char b_TimerSelectMode;
53b28a23 HS	80	};
53b28a23 HS	81
99c9fa48 HS	82	static struct comedi_lrange apci3501_ao_range = {
	83	2, {
	84	BIP_RANGE(10),
	85	UNI_RANGE(10)
	86	}
	87	};
	88
5458f3e7 HS	89	static int apci3501_wait_for_dac(struct comedi_device *dev)
	90	{
	91	unsigned int status;
	92
	93	do {
	94	status = inl(dev->iobase + APCI3501_AO_CTRL_STATUS_REG);
	95	} while (!(status & APCI3501_AO_STATUS_READY));
	96
	97	return 0;
	98	}
	99
298ab7de HS	100	static int apci3501_ao_insn_write(struct comedi_device *dev,
	101	struct comedi_subdevice *s,
	102	struct comedi_insn *insn,
	103	unsigned int *data)
	104	{
	105	unsigned int chan = CR_CHAN(insn->chanspec);
	106	unsigned int range = CR_RANGE(insn->chanspec);
	107	unsigned int val = 0;
	108	int i;
	109	int ret;
	110
	111	/*
	112	* All analog output channels have the same output range.
	113	* 14-bit bipolar: 0-10V
	114	* 13-bit unipolar: +/-10V
	115	* Changing the range of one channel changes all of them!
	116	*/
	117	if (range) {
	118	outl(0, dev->iobase + APCI3501_AO_CTRL_STATUS_REG);
	119	} else {
	120	val \|= APCI3501_AO_DATA_BIPOLAR;
	121	outl(APCI3501_AO_CTRL_BIPOLAR,
	122	dev->iobase + APCI3501_AO_CTRL_STATUS_REG);
	123	}
	124
	125	val \|= APCI3501_AO_DATA_CHAN(chan);
	126
	127	for (i = 0; i < insn->n; i++) {
	128	if (range == 1) {
	129	if (data[i] > 0x1fff) {
	130	dev_err(dev->class_dev,
	131	"Unipolar resolution is only 13-bits\n");
	132	return -EINVAL;
	133	}
	134	}
	135
	136	ret = apci3501_wait_for_dac(dev);
	137	if (ret)
	138	return ret;
	139
	140	outl(val \| APCI3501_AO_DATA_VAL(data[i]),
	141	dev->iobase + APCI3501_AO_DATA_REG);
	142	}
	143
	144	return insn->n;
	145	}
	146
53b28a23 HS	147	#include "addi-data/hwdrv_apci3501.c"
53b28a23 HS	148
513192fc HS	149	static int apci3501_di_insn_bits(struct comedi_device *dev,
	150	struct comedi_subdevice *s,
	151	struct comedi_insn *insn,
	152	unsigned int *data)
	153	{
1bc5062a	154	data[1] = inl(dev->iobase + APCI3501_DI_REG) & 0x3;
513192fc HS	155
	156	return insn->n;
	157	}
	158
953a36c4 HS	159	static int apci3501_do_insn_bits(struct comedi_device *dev,
	160	struct comedi_subdevice *s,
	161	struct comedi_insn *insn,
	162	unsigned int *data)
	163	{
1bc5062a	164	s->state = inl(dev->iobase + APCI3501_DO_REG);
953a36c4	165
97f4289a	166	if (comedi_dio_update_state(s, data))
1bc5062a	167	outl(s->state, dev->iobase + APCI3501_DO_REG);
953a36c4 HS	168
	169	data[1] = s->state;
	170
	171	return insn->n;
	172	}
	173
25b9b873 HS	174	static void apci3501_eeprom_wait(unsigned long iobase)
	175	{
	176	unsigned char val;
	177
	178	do {
	179	val = inb(iobase + AMCC_OP_REG_MCSR_NVCMD);
	180	} while (val & 0x80);
	181	}
	182
	183	static unsigned short apci3501_eeprom_readw(unsigned long iobase,
	184	unsigned short addr)
	185	{
	186	unsigned short val = 0;
	187	unsigned char tmp;
	188	unsigned char i;
	189
	190	/* Add the offset to the start of the user data */
	191	addr += NVRAM_USER_DATA_START;
	192
	193	for (i = 0; i < 2; i++) {
	194	/* Load the low 8 bit address */
	195	outb(NVCMD_LOAD_LOW, iobase + AMCC_OP_REG_MCSR_NVCMD);
	196	apci3501_eeprom_wait(iobase);
	197	outb((addr + i) & 0xff, iobase + AMCC_OP_REG_MCSR_NVDATA);
	198	apci3501_eeprom_wait(iobase);
	199
	200	/* Load the high 8 bit address */
	201	outb(NVCMD_LOAD_HIGH, iobase + AMCC_OP_REG_MCSR_NVCMD);
	202	apci3501_eeprom_wait(iobase);
	203	outb(((addr + i) >> 8) & 0xff,
	204	iobase + AMCC_OP_REG_MCSR_NVDATA);
	205	apci3501_eeprom_wait(iobase);
	206
	207	/* Read the eeprom data byte */
	208	outb(NVCMD_BEGIN_READ, iobase + AMCC_OP_REG_MCSR_NVCMD);
	209	apci3501_eeprom_wait(iobase);
	210	tmp = inb(iobase + AMCC_OP_REG_MCSR_NVDATA);
	211	apci3501_eeprom_wait(iobase);
	212
	213	if (i == 0)
	214	val \|= tmp;
	215	else
	216	val \|= (tmp << 8);
	217	}
	218
	219	return val;
	220	}
	221
	222	static int apci3501_eeprom_get_ao_n_chan(struct comedi_device *dev)
	223	{
015aebe7	224	struct apci3501_private *devpriv = dev->private;
25b9b873 HS	225	unsigned long iobase = devpriv->i_IobaseAmcc;
	226	unsigned char nfuncs;
	227	int i;
	228
	229	nfuncs = apci3501_eeprom_readw(iobase, 10) & 0xff;
	230
	231	/* Read functionality details */
	232	for (i = 0; i < nfuncs; i++) {
	233	unsigned short offset = i * 4;
	234	unsigned short addr;
	235	unsigned char func;
	236	unsigned short val;
	237
	238	func = apci3501_eeprom_readw(iobase, 12 + offset) & 0x3f;
	239	addr = apci3501_eeprom_readw(iobase, 14 + offset);
	240
	241	if (func == EEPROM_ANALOGOUTPUT) {
	242	val = apci3501_eeprom_readw(iobase, addr + 10);
	243	return (val >> 4) & 0x3ff;
	244	}
	245	}
	246	return 0;
	247	}
	248
87c38fbe	249	static int apci3501_eeprom_insn_read(struct comedi_device *dev,
8861b456 HS	250	struct comedi_subdevice *s,
	251	struct comedi_insn *insn,
	252	unsigned int *data)
	253	{
015aebe7	254	struct apci3501_private *devpriv = dev->private;
25b9b873	255	unsigned short addr = CR_CHAN(insn->chanspec);
8861b456	256
25b9b873	257	data[0] = apci3501_eeprom_readw(devpriv->i_IobaseAmcc, 2 * addr);
8861b456 HS	258
	259	return insn->n;
	260	}
	261
b2b82184	262	static irqreturn_t apci3501_interrupt(int irq, void *d)
8861b456 HS	263	{
8861b456 HS	264	struct comedi_device *dev = d;
015aebe7	265	struct apci3501_private *devpriv = dev->private;
b2b82184 HS	266	unsigned int ui_Timer_AOWatchdog;
	267	unsigned long ul_Command1;
	268	int i_temp;
	269
	270	/* Disable Interrupt */
9798df72	271	ul_Command1 = inl(dev->iobase + APCI3501_TIMER_CTRL_REG);
b2b82184	272	ul_Command1 = (ul_Command1 & 0xFFFFF9FDul);
9798df72	273	outl(ul_Command1, dev->iobase + APCI3501_TIMER_CTRL_REG);
b2b82184	274
9798df72	275	ui_Timer_AOWatchdog = inl(dev->iobase + APCI3501_TIMER_IRQ_REG) & 0x1;
b2b82184 HS	276	if ((!ui_Timer_AOWatchdog)) {
	277	comedi_error(dev, "IRQ from unknown source");
	278	return IRQ_NONE;
	279	}
8861b456	280
b2b82184 HS	281	/* Enable Interrupt Send a signal to from kernel to user space */
b2b82184 HS	282	send_sig(SIGIO, devpriv->tsk_Current, 0);
9798df72	283	ul_Command1 = inl(dev->iobase + APCI3501_TIMER_CTRL_REG);
b2b82184	284	ul_Command1 = ((ul_Command1 & 0xFFFFF9FDul) \| 1 << 1);
9798df72 HS	285	outl(ul_Command1, dev->iobase + APCI3501_TIMER_CTRL_REG);
9798df72 HS	286	i_temp = inl(dev->iobase + APCI3501_TIMER_STATUS_REG) & 0x1;
b2b82184 HS	287
b2b82184 HS	288	return IRQ_HANDLED;
8861b456 HS	289	}
8861b456 HS	290
678a4d3a	291	static int apci3501_reset(struct comedi_device *dev)
8861b456	292	{
26273698 HS	293	unsigned int val;
26273698 HS	294	int chan;
5458f3e7	295	int ret;
678a4d3a	296
26273698	297	/* Reset all digital outputs to "0" */
1bc5062a	298	outl(0x0, dev->iobase + APCI3501_DO_REG);
678a4d3a	299
26273698 HS	300	/* Default all analog outputs to 0V (bipolar) */
	301	outl(APCI3501_AO_CTRL_BIPOLAR,
	302	dev->iobase + APCI3501_AO_CTRL_STATUS_REG);
	303	val = APCI3501_AO_DATA_BIPOLAR \| APCI3501_AO_DATA_VAL(0);
678a4d3a	304
26273698 HS	305	/* Set all analog output channels */
26273698 HS	306	for (chan = 0; chan < 8; chan++) {
5458f3e7 HS	307	ret = apci3501_wait_for_dac(dev);
	308	if (ret) {
	309	dev_warn(dev->class_dev,
	310	"%s: DAC not-ready for channel %i\n",
26273698	311	__func__, chan);
5458f3e7	312	} else {
26273698 HS	313	outl(val \| APCI3501_AO_DATA_CHAN(chan),
26273698 HS	314	dev->iobase + APCI3501_AO_DATA_REG);
678a4d3a HS	315	}
678a4d3a HS	316	}
8861b456	317
8861b456 HS	318	return 0;
	319	}
	320
8861b456 HS	321	static int apci3501_auto_attach(struct comedi_device *dev,
	322	unsigned long context_unused)
	323	{
	324	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
015aebe7	325	struct apci3501_private *devpriv;
8861b456	326	struct comedi_subdevice *s;
25b9b873	327	int ao_n_chan;
694dcf50	328	int ret;
8861b456	329
0bdab509	330	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
8861b456 HS	331	if (!devpriv)
8861b456 HS	332	return -ENOMEM;
8861b456	333
818f569f	334	ret = comedi_pci_enable(dev);
8861b456 HS	335	if (ret)
	336	return ret;
	337
1bdc8402	338	dev->iobase = pci_resource_start(pcidev, 1);
1bdc8402	339	devpriv->i_IobaseAmcc = pci_resource_start(pcidev, 0);
8861b456	340
25b9b873	341	ao_n_chan = apci3501_eeprom_get_ao_n_chan(dev);
8861b456 HS	342
8861b456 HS	343	if (pcidev->irq > 0) {
b2b82184	344	ret = request_irq(pcidev->irq, apci3501_interrupt, IRQF_SHARED,
8861b456 HS	345	dev->board_name, dev);
	346	if (ret == 0)
	347	dev->irq = pcidev->irq;
	348	}
	349
694dcf50	350	ret = comedi_alloc_subdevices(dev, 5);
8861b456 HS	351	if (ret)
	352	return ret;
	353
694dcf50	354	/* Initialize the analog output subdevice */
8861b456	355	s = &dev->subdevices[0];
25b9b873 HS	356	if (ao_n_chan) {
	357	s->type = COMEDI_SUBD_AO;
	358	s->subdev_flags = SDF_WRITEABLE \| SDF_GROUND \| SDF_COMMON;
	359	s->n_chan = ao_n_chan;
	360	s->maxdata = 0x3fff;
99c9fa48	361	s->range_table = &apci3501_ao_range;
298ab7de	362	s->insn_write = apci3501_ao_insn_write;
8861b456	363	} else {
25b9b873	364	s->type = COMEDI_SUBD_UNUSED;
8861b456	365	}
25b9b873	366
694dcf50 HS	367	/* Initialize the digital input subdevice */
694dcf50 HS	368	s = &dev->subdevices[1];
513192fc HS	369	s->type = COMEDI_SUBD_DI;
	370	s->subdev_flags = SDF_READABLE;
	371	s->n_chan = 2;
	372	s->maxdata = 1;
	373	s->range_table = &range_digital;
	374	s->insn_bits = apci3501_di_insn_bits;
8861b456	375
953a36c4	376	/* Initialize the digital output subdevice */
694dcf50	377	s = &dev->subdevices[2];
953a36c4 HS	378	s->type = COMEDI_SUBD_DO;
	379	s->subdev_flags = SDF_WRITEABLE;
	380	s->n_chan = 2;
	381	s->maxdata = 1;
	382	s->range_table = &range_digital;
	383	s->insn_bits = apci3501_do_insn_bits;
8861b456	384
694dcf50 HS	385	/* Initialize the timer/watchdog subdevice */
694dcf50 HS	386	s = &dev->subdevices[3];
3d596e50 HS	387	s->type = COMEDI_SUBD_TIMER;
	388	s->subdev_flags = SDF_WRITEABLE \| SDF_GROUND \| SDF_COMMON;
	389	s->n_chan = 1;
	390	s->maxdata = 0;
	391	s->len_chanlist = 1;
	392	s->range_table = &range_digital;
	393	s->insn_write = i_APCI3501_StartStopWriteTimerCounterWatchdog;
	394	s->insn_read = i_APCI3501_ReadTimerCounterWatchdog;
	395	s->insn_config = i_APCI3501_ConfigTimerCounterWatchdog;
8861b456	396
694dcf50 HS	397	/* Initialize the eeprom subdevice */
694dcf50 HS	398	s = &dev->subdevices[4];
87c38fbe HS	399	s->type = COMEDI_SUBD_MEMORY;
	400	s->subdev_flags = SDF_READABLE \| SDF_INTERNAL;
	401	s->n_chan = 256;
	402	s->maxdata = 0xffff;
	403	s->insn_read = apci3501_eeprom_insn_read;
8861b456	404
678a4d3a	405	apci3501_reset(dev);
8861b456 HS	406	return 0;
	407	}
	408
	409	static void apci3501_detach(struct comedi_device *dev)
	410	{
015aebe7 HS	411	if (dev->iobase)
	412	apci3501_reset(dev);
	413	if (dev->irq)
	414	free_irq(dev->irq, dev);
7f072f54	415	comedi_pci_disable(dev);
8861b456	416	}
317285d7	417
20a22b70 HS	418	static struct comedi_driver apci3501_driver = {
	419	.driver_name = "addi_apci_3501",
	420	.module = THIS_MODULE,
8861b456 HS	421	.auto_attach = apci3501_auto_attach,
8861b456 HS	422	.detach = apci3501_detach,
20a22b70 HS	423	};
20a22b70 HS	424
a690b7e5	425	static int apci3501_pci_probe(struct pci_dev *dev,
b8f4ac23	426	const struct pci_device_id *id)
20a22b70	427	{
b8f4ac23	428	return comedi_pci_auto_config(dev, &apci3501_driver, id->driver_data);
20a22b70 HS	429	}
20a22b70 HS	430
8861b456 HS	431	static DEFINE_PCI_DEVICE_TABLE(apci3501_pci_table) = {
	432	{ PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, 0x3001) },
	433	{ 0 }
	434	};
	435	MODULE_DEVICE_TABLE(pci, apci3501_pci_table);
	436
20a22b70 HS	437	static struct pci_driver apci3501_pci_driver = {
	438	.name = "addi_apci_3501",
	439	.id_table = apci3501_pci_table,
	440	.probe = apci3501_pci_probe,
9901a4d7	441	.remove = comedi_pci_auto_unconfig,
20a22b70 HS	442	};
20a22b70 HS	443	module_comedi_pci_driver(apci3501_driver, apci3501_pci_driver);
90f703d3	444
6ff35881	445	MODULE_DESCRIPTION("ADDI-DATA APCI-3501 Analog output board");
90f703d3	446	MODULE_AUTHOR("Comedi http://www.comedi.org");
90f703d3	447	MODULE_LICENSE("GPL");