linux/drivers/comedi/drivers/pcmad.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * pcmad.c
 * Hardware driver for Winsystems PCM-A/D12 and PCM-A/D16
 *
 * COMEDI - Linux Control and Measurement Device Interface
 * Copyright (C) 2000,2001 David A. Schleef <[email protected]>
 */

/*
 * Driver: pcmad
 * Description: Winsystems PCM-A/D12, PCM-A/D16
 * Devices: [Winsystems] PCM-A/D12 (pcmad12), PCM-A/D16 (pcmad16)
 * Author: ds
 * Status: untested
 *
 * This driver was written on a bet that I couldn't write a driver
 * in less than 2 hours.  I won the bet, but never got paid.  =(
 *
 * Configuration options:
 *   [0] - I/O port base
 *   [1] - IRQ (unused)
 *   [2] - Analog input reference (must match jumpers)
 *	   0 = single-ended (16 channels)
 *	   1 = differential (8 channels)
 *   [3] - Analog input encoding (must match jumpers)
 *	   0 = straight binary (0-5V input range)
 *	   1 = two's complement (+-10V input range)
 */

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

#define PCMAD_STATUS …
#define PCMAD_LSB …
#define PCMAD_MSB …
#define PCMAD_CONVERT …

struct pcmad_board_struct { … };

static const struct pcmad_board_struct pcmad_boards[] = …;

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

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

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

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

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