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path: root/drivers/staging/comedi/drivers/aio_aio12_8.c
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Diffstat (limited to 'drivers/staging/comedi/drivers/aio_aio12_8.c')
-rw-r--r--drivers/staging/comedi/drivers/aio_aio12_8.c277
1 files changed, 0 insertions, 277 deletions
diff --git a/drivers/staging/comedi/drivers/aio_aio12_8.c b/drivers/staging/comedi/drivers/aio_aio12_8.c
deleted file mode 100644
index 4829115921a3..000000000000
--- a/drivers/staging/comedi/drivers/aio_aio12_8.c
+++ /dev/null
@@ -1,277 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * aio_aio12_8.c
- * Driver for Access I/O Products PC-104 AIO12-8 Analog I/O Board
- * Copyright (C) 2006 C&C Technologies, Inc.
- */
-
-/*
- * Driver: aio_aio12_8
- * Description: Access I/O Products PC-104 AIO12-8 Analog I/O Board
- * Author: Pablo Mejia <pablo.mejia@cctechnol.com>
- * Devices: [Access I/O] PC-104 AIO12-8 (aio_aio12_8),
- * [Access I/O] PC-104 AI12-8 (aio_ai12_8),
- * [Access I/O] PC-104 AO12-4 (aio_ao12_4)
- * Status: experimental
- *
- * Configuration Options:
- * [0] - I/O port base address
- *
- * Notes:
- * Only synchronous operations are supported.
- */
-
-#include <linux/module.h>
-#include "../comedidev.h"
-
-#include "comedi_8254.h"
-#include "8255.h"
-
-/*
- * Register map
- */
-#define AIO12_8_STATUS_REG 0x00
-#define AIO12_8_STATUS_ADC_EOC BIT(7)
-#define AIO12_8_STATUS_PORT_C_COS BIT(6)
-#define AIO12_8_STATUS_IRQ_ENA BIT(2)
-#define AIO12_8_INTERRUPT_REG 0x01
-#define AIO12_8_INTERRUPT_ADC BIT(7)
-#define AIO12_8_INTERRUPT_COS BIT(6)
-#define AIO12_8_INTERRUPT_COUNTER1 BIT(5)
-#define AIO12_8_INTERRUPT_PORT_C3 BIT(4)
-#define AIO12_8_INTERRUPT_PORT_C0 BIT(3)
-#define AIO12_8_INTERRUPT_ENA BIT(2)
-#define AIO12_8_ADC_REG 0x02
-#define AIO12_8_ADC_MODE(x) (((x) & 0x3) << 6)
-#define AIO12_8_ADC_MODE_NORMAL AIO12_8_ADC_MODE(0)
-#define AIO12_8_ADC_MODE_INT_CLK AIO12_8_ADC_MODE(1)
-#define AIO12_8_ADC_MODE_STANDBY AIO12_8_ADC_MODE(2)
-#define AIO12_8_ADC_MODE_POWERDOWN AIO12_8_ADC_MODE(3)
-#define AIO12_8_ADC_ACQ(x) (((x) & 0x1) << 5)
-#define AIO12_8_ADC_ACQ_3USEC AIO12_8_ADC_ACQ(0)
-#define AIO12_8_ADC_ACQ_PROGRAM AIO12_8_ADC_ACQ(1)
-#define AIO12_8_ADC_RANGE(x) ((x) << 3)
-#define AIO12_8_ADC_CHAN(x) ((x) << 0)
-#define AIO12_8_DAC_REG(x) (0x04 + (x) * 2)
-#define AIO12_8_8254_BASE_REG 0x0c
-#define AIO12_8_8255_BASE_REG 0x10
-#define AIO12_8_DIO_CONTROL_REG 0x14
-#define AIO12_8_DIO_CONTROL_TST BIT(0)
-#define AIO12_8_ADC_TRIGGER_REG 0x15
-#define AIO12_8_ADC_TRIGGER_RANGE(x) ((x) << 3)
-#define AIO12_8_ADC_TRIGGER_CHAN(x) ((x) << 0)
-#define AIO12_8_TRIGGER_REG 0x16
-#define AIO12_8_TRIGGER_ADTRIG BIT(1)
-#define AIO12_8_TRIGGER_DACTRIG BIT(0)
-#define AIO12_8_COS_REG 0x17
-#define AIO12_8_DAC_ENABLE_REG 0x18
-#define AIO12_8_DAC_ENABLE_REF_ENA BIT(0)
-
-static const struct comedi_lrange aio_aio12_8_range = {
- 4, {
- UNI_RANGE(5),
- BIP_RANGE(5),
- UNI_RANGE(10),
- BIP_RANGE(10)
- }
-};
-
-struct aio12_8_boardtype {
- const char *name;
- unsigned int has_ai:1;
- unsigned int has_ao:1;
-};
-
-static const struct aio12_8_boardtype board_types[] = {
- {
- .name = "aio_aio12_8",
- .has_ai = 1,
- .has_ao = 1,
- }, {
- .name = "aio_ai12_8",
- .has_ai = 1,
- }, {
- .name = "aio_ao12_4",
- .has_ao = 1,
- },
-};
-
-static int aio_aio12_8_ai_eoc(struct comedi_device *dev,
- struct comedi_subdevice *s,
- struct comedi_insn *insn,
- unsigned long context)
-{
- unsigned int status;
-
- status = inb(dev->iobase + AIO12_8_STATUS_REG);
- if (status & AIO12_8_STATUS_ADC_EOC)
- return 0;
- return -EBUSY;
-}
-
-static int aio_aio12_8_ai_read(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;
- unsigned char control;
- int ret;
- int i;
-
- /*
- * Setup the control byte for internal 2MHz clock, 3uS conversion,
- * at the desired range of the requested channel.
- */
- control = AIO12_8_ADC_MODE_NORMAL | AIO12_8_ADC_ACQ_3USEC |
- AIO12_8_ADC_RANGE(range) | AIO12_8_ADC_CHAN(chan);
-
- /* Read status to clear EOC latch */
- inb(dev->iobase + AIO12_8_STATUS_REG);
-
- for (i = 0; i < insn->n; i++) {
- /* Setup and start conversion */
- outb(control, dev->iobase + AIO12_8_ADC_REG);
-
- /* Wait for conversion to complete */
- ret = comedi_timeout(dev, s, insn, aio_aio12_8_ai_eoc, 0);
- if (ret)
- return ret;
-
- val = inw(dev->iobase + AIO12_8_ADC_REG) & s->maxdata;
-
- /* munge bipolar 2's complement data to offset binary */
- if (comedi_range_is_bipolar(s, range))
- val = comedi_offset_munge(s, val);
-
- data[i] = val;
- }
-
- return insn->n;
-}
-
-static int aio_aio12_8_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 val = s->readback[chan];
- int i;
-
- /* enable DACs */
- outb(AIO12_8_DAC_ENABLE_REF_ENA, dev->iobase + AIO12_8_DAC_ENABLE_REG);
-
- for (i = 0; i < insn->n; i++) {
- val = data[i];
- outw(val, dev->iobase + AIO12_8_DAC_REG(chan));
- }
- s->readback[chan] = val;
-
- return insn->n;
-}
-
-static int aio_aio12_8_counter_insn_config(struct comedi_device *dev,
- struct comedi_subdevice *s,
- struct comedi_insn *insn,
- unsigned int *data)
-{
- unsigned int chan = CR_CHAN(insn->chanspec);
-
- switch (data[0]) {
- case INSN_CONFIG_GET_CLOCK_SRC:
- /*
- * Channels 0 and 2 have external clock sources.
- * Channel 1 has a fixed 1 MHz clock source.
- */
- data[0] = 0;
- data[1] = (chan == 1) ? I8254_OSC_BASE_1MHZ : 0;
- break;
- default:
- return -EINVAL;
- }
-
- return insn->n;
-}
-
-static int aio_aio12_8_attach(struct comedi_device *dev,
- struct comedi_devconfig *it)
-{
- const struct aio12_8_boardtype *board = dev->board_ptr;
- struct comedi_subdevice *s;
- int ret;
-
- ret = comedi_request_region(dev, it->options[0], 32);
- if (ret)
- return ret;
-
- dev->pacer = comedi_8254_init(dev->iobase + AIO12_8_8254_BASE_REG,
- 0, I8254_IO8, 0);
- if (!dev->pacer)
- return -ENOMEM;
-
- ret = comedi_alloc_subdevices(dev, 4);
- if (ret)
- return ret;
-
- /* Analog Input subdevice */
- s = &dev->subdevices[0];
- if (board->has_ai) {
- s->type = COMEDI_SUBD_AI;
- s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_DIFF;
- s->n_chan = 8;
- s->maxdata = 0x0fff;
- s->range_table = &aio_aio12_8_range;
- s->insn_read = aio_aio12_8_ai_read;
- } else {
- s->type = COMEDI_SUBD_UNUSED;
- }
-
- /* Analog Output subdevice */
- s = &dev->subdevices[1];
- if (board->has_ao) {
- s->type = COMEDI_SUBD_AO;
- s->subdev_flags = SDF_WRITABLE | SDF_GROUND;
- s->n_chan = 4;
- s->maxdata = 0x0fff;
- s->range_table = &aio_aio12_8_range;
- s->insn_write = aio_aio12_8_ao_insn_write;
-
- ret = comedi_alloc_subdev_readback(s);
- if (ret)
- return ret;
- } else {
- s->type = COMEDI_SUBD_UNUSED;
- }
-
- /* Digital I/O subdevice (8255) */
- s = &dev->subdevices[2];
- ret = subdev_8255_init(dev, s, NULL, AIO12_8_8255_BASE_REG);
- if (ret)
- return ret;
-
- /* Counter subdevice (8254) */
- s = &dev->subdevices[3];
- comedi_8254_subdevice_init(s, dev->pacer);
-
- dev->pacer->insn_config = aio_aio12_8_counter_insn_config;
-
- return 0;
-}
-
-static struct comedi_driver aio_aio12_8_driver = {
- .driver_name = "aio_aio12_8",
- .module = THIS_MODULE,
- .attach = aio_aio12_8_attach,
- .detach = comedi_legacy_detach,
- .board_name = &board_types[0].name,
- .num_names = ARRAY_SIZE(board_types),
- .offset = sizeof(struct aio12_8_boardtype),
-};
-module_comedi_driver(aio_aio12_8_driver);
-
-MODULE_AUTHOR("Comedi https://www.comedi.org");
-MODULE_DESCRIPTION("Comedi driver for Access I/O AIO12-8 Analog I/O Board");
-MODULE_LICENSE("GPL");
generated by cgit (git 2.34.1) at 2024-06-13 11:42:57 +0000