linux/drivers/comedi/drivers/dt2815.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * comedi/drivers/dt2815.c
 * Hardware driver for Data Translation DT2815
 *
 * COMEDI - Linux Control and Measurement Device Interface
 * Copyright (C) 1999 Anders Blomdell <[email protected]>
 */
/*
 * Driver: dt2815
 * Description: Data Translation DT2815
 * Author: ds
 * Status: mostly complete, untested
 * Devices: [Data Translation] DT2815 (dt2815)
 *
 * I'm not sure anyone has ever tested this board.  If you have information
 * contrary, please update.
 *
 * Configuration options:
 * [0] - I/O port base base address
 * [1] - IRQ (unused)
 * [2] - Voltage unipolar/bipolar configuration
 *	0 == unipolar 5V  (0V -- +5V)
 *	1 == bipolar 5V  (-5V -- +5V)
 * [3] - Current offset configuration
 *	0 == disabled  (0mA -- +32mAV)
 *	1 == enabled  (+4mA -- +20mAV)
 * [4] - Firmware program configuration
 *	0 == program 1 (see manual table 5-4)
 *	1 == program 2 (see manual table 5-4)
 *	2 == program 3 (see manual table 5-4)
 *	3 == program 4 (see manual table 5-4)
 * [5] - Analog output 0 range configuration
 *	0 == voltage
 *	1 == current
 * [6] - Analog output 1 range configuration (same options)
 * [7] - Analog output 2 range configuration (same options)
 * [8] - Analog output 3 range configuration (same options)
 * [9] - Analog output 4 range configuration (same options)
 * [10] - Analog output 5 range configuration (same options)
 * [11] - Analog output 6 range configuration (same options)
 * [12] - Analog output 7 range configuration (same options)
 */

#include <linux/module.h>
#include <linux/comedi/comedidev.h>
#include <linux/delay.h>

#define DT2815_DATA …
#define DT2815_STATUS …

struct dt2815_private { … };

static int dt2815_ao_status(struct comedi_device *dev,
			    struct comedi_subdevice *s,
			    struct comedi_insn *insn,
			    unsigned long context)
{ … }

static int dt2815_ao_insn_read(struct comedi_device *dev,
			       struct comedi_subdevice *s,
			       struct comedi_insn *insn, unsigned int *data)
{ … }

static int dt2815_ao_insn(struct comedi_device *dev, struct comedi_subdevice *s,
			  struct comedi_insn *insn, unsigned int *data)
{ … }

/*
 * options[0]   Board base address
 * options[1]   IRQ (not applicable)
 * options[2]   Voltage unipolar/bipolar configuration
 *		0 == unipolar 5V  (0V -- +5V)
 *		1 == bipolar 5V  (-5V -- +5V)
 * options[3]   Current offset configuration
 *		0 == disabled  (0mA -- +32mAV)
 *		1 == enabled  (+4mA -- +20mAV)
 * options[4]   Firmware program configuration
 *		0 == program 1 (see manual table 5-4)
 *		1 == program 2 (see manual table 5-4)
 *		2 == program 3 (see manual table 5-4)
 *		3 == program 4 (see manual table 5-4)
 * options[5]   Analog output 0 range configuration
 *		0 == voltage
 *		1 == current
 * options[6]   Analog output 1 range configuration
 * ...
 * options[12]   Analog output 7 range configuration
 *		0 == voltage
 *		1 == current
 */

static int dt2815_attach(struct comedi_device *dev, struct comedi_devconfig *it)
{ … }

static struct comedi_driver dt2815_driver = …;
module_comedi_driver(…);

MODULE_AUTHOR(…) …;
MODULE_DESCRIPTION(…) …;
MODULE_LICENSE(…) …;