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path: root/drivers/staging/comedi/drivers/pcl726.c
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Diffstat (limited to 'drivers/staging/comedi/drivers/pcl726.c')
-rw-r--r--drivers/staging/comedi/drivers/pcl726.c425
1 files changed, 0 insertions, 425 deletions
diff --git a/drivers/staging/comedi/drivers/pcl726.c b/drivers/staging/comedi/drivers/pcl726.c
deleted file mode 100644
index 88f25d7e76f7..000000000000
--- a/drivers/staging/comedi/drivers/pcl726.c
+++ /dev/null
@@ -1,425 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * pcl726.c
- * Comedi driver for 6/12-Channel D/A Output and DIO cards
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 1998 David A. Schleef <ds@schleef.org>
- */
-
-/*
- * Driver: pcl726
- * Description: Advantech PCL-726 & compatibles
- * Author: David A. Schleef <ds@schleef.org>
- * Status: untested
- * Devices: [Advantech] PCL-726 (pcl726), PCL-727 (pcl727), PCL-728 (pcl728),
- * [ADLink] ACL-6126 (acl6126), ACL-6128 (acl6128)
- *
- * Configuration Options:
- * [0] - IO Base
- * [1] - IRQ (ACL-6126 only)
- * [2] - D/A output range for channel 0
- * [3] - D/A output range for channel 1
- *
- * Boards with > 2 analog output channels:
- * [4] - D/A output range for channel 2
- * [5] - D/A output range for channel 3
- * [6] - D/A output range for channel 4
- * [7] - D/A output range for channel 5
- *
- * Boards with > 6 analog output channels:
- * [8] - D/A output range for channel 6
- * [9] - D/A output range for channel 7
- * [10] - D/A output range for channel 8
- * [11] - D/A output range for channel 9
- * [12] - D/A output range for channel 10
- * [13] - D/A output range for channel 11
- *
- * For PCL-726 the D/A output ranges are:
- * 0: 0-5V, 1: 0-10V, 2: +/-5V, 3: +/-10V, 4: 4-20mA, 5: unknown
- *
- * For PCL-727:
- * 0: 0-5V, 1: 0-10V, 2: +/-5V, 3: 4-20mA
- *
- * For PCL-728 and ACL-6128:
- * 0: 0-5V, 1: 0-10V, 2: +/-5V, 3: +/-10V, 4: 4-20mA, 5: 0-20mA
- *
- * For ACL-6126:
- * 0: 0-5V, 1: 0-10V, 2: +/-5V, 3: +/-10V, 4: 4-20mA
- */
-
-#include <linux/module.h>
-#include <linux/interrupt.h>
-
-#include "../comedidev.h"
-
-#define PCL726_AO_MSB_REG(x) (0x00 + ((x) * 2))
-#define PCL726_AO_LSB_REG(x) (0x01 + ((x) * 2))
-#define PCL726_DO_MSB_REG 0x0c
-#define PCL726_DO_LSB_REG 0x0d
-#define PCL726_DI_MSB_REG 0x0e
-#define PCL726_DI_LSB_REG 0x0f
-
-#define PCL727_DI_MSB_REG 0x00
-#define PCL727_DI_LSB_REG 0x01
-#define PCL727_DO_MSB_REG 0x18
-#define PCL727_DO_LSB_REG 0x19
-
-static const struct comedi_lrange *const rangelist_726[] = {
- &range_unipolar5,
- &range_unipolar10,
- &range_bipolar5,
- &range_bipolar10,
- &range_4_20mA,
- &range_unknown
-};
-
-static const struct comedi_lrange *const rangelist_727[] = {
- &range_unipolar5,
- &range_unipolar10,
- &range_bipolar5,
- &range_4_20mA
-};
-
-static const struct comedi_lrange *const rangelist_728[] = {
- &range_unipolar5,
- &range_unipolar10,
- &range_bipolar5,
- &range_bipolar10,
- &range_4_20mA,
- &range_0_20mA
-};
-
-struct pcl726_board {
- const char *name;
- unsigned long io_len;
- unsigned int irq_mask;
- const struct comedi_lrange *const *ao_ranges;
- int ao_num_ranges;
- int ao_nchan;
- unsigned int have_dio:1;
- unsigned int is_pcl727:1;
-};
-
-static const struct pcl726_board pcl726_boards[] = {
- {
- .name = "pcl726",
- .io_len = 0x10,
- .ao_ranges = &rangelist_726[0],
- .ao_num_ranges = ARRAY_SIZE(rangelist_726),
- .ao_nchan = 6,
- .have_dio = 1,
- }, {
- .name = "pcl727",
- .io_len = 0x20,
- .ao_ranges = &rangelist_727[0],
- .ao_num_ranges = ARRAY_SIZE(rangelist_727),
- .ao_nchan = 12,
- .have_dio = 1,
- .is_pcl727 = 1,
- }, {
- .name = "pcl728",
- .io_len = 0x08,
- .ao_num_ranges = ARRAY_SIZE(rangelist_728),
- .ao_ranges = &rangelist_728[0],
- .ao_nchan = 2,
- }, {
- .name = "acl6126",
- .io_len = 0x10,
- .irq_mask = 0x96e8,
- .ao_num_ranges = ARRAY_SIZE(rangelist_726),
- .ao_ranges = &rangelist_726[0],
- .ao_nchan = 6,
- .have_dio = 1,
- }, {
- .name = "acl6128",
- .io_len = 0x08,
- .ao_num_ranges = ARRAY_SIZE(rangelist_728),
- .ao_ranges = &rangelist_728[0],
- .ao_nchan = 2,
- },
-};
-
-struct pcl726_private {
- const struct comedi_lrange *rangelist[12];
- unsigned int cmd_running:1;
-};
-
-static int pcl726_intr_insn_bits(struct comedi_device *dev,
- struct comedi_subdevice *s,
- struct comedi_insn *insn,
- unsigned int *data)
-{
- data[1] = 0;
- return insn->n;
-}
-
-static int pcl726_intr_cmdtest(struct comedi_device *dev,
- struct comedi_subdevice *s,
- struct comedi_cmd *cmd)
-{
- int err = 0;
-
- /* Step 1 : check if triggers are trivially valid */
-
- err |= comedi_check_trigger_src(&cmd->start_src, TRIG_NOW);
- err |= comedi_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
- err |= comedi_check_trigger_src(&cmd->convert_src, TRIG_FOLLOW);
- err |= comedi_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
- err |= comedi_check_trigger_src(&cmd->stop_src, TRIG_NONE);
-
- if (err)
- return 1;
-
- /* Step 2a : make sure trigger sources are unique */
- /* Step 2b : and mutually compatible */
-
- /* Step 3: check if arguments are trivially valid */
-
- err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0);
- err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
- err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
- err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
- cmd->chanlist_len);
- err |= comedi_check_trigger_arg_is(&cmd->stop_arg, 0);
-
- if (err)
- return 3;
-
- /* Step 4: fix up any arguments */
-
- /* Step 5: check channel list if it exists */
-
- return 0;
-}
-
-static int pcl726_intr_cmd(struct comedi_device *dev,
- struct comedi_subdevice *s)
-{
- struct pcl726_private *devpriv = dev->private;
-
- devpriv->cmd_running = 1;
-
- return 0;
-}
-
-static int pcl726_intr_cancel(struct comedi_device *dev,
- struct comedi_subdevice *s)
-{
- struct pcl726_private *devpriv = dev->private;
-
- devpriv->cmd_running = 0;
-
- return 0;
-}
-
-static irqreturn_t pcl726_interrupt(int irq, void *d)
-{
- struct comedi_device *dev = d;
- struct comedi_subdevice *s = dev->read_subdev;
- struct pcl726_private *devpriv = dev->private;
-
- if (devpriv->cmd_running) {
- unsigned short val = 0;
-
- pcl726_intr_cancel(dev, s);
-
- comedi_buf_write_samples(s, &val, 1);
- comedi_handle_events(dev, s);
- }
-
- return IRQ_HANDLED;
-}
-
-static int pcl726_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);
- int i;
-
- for (i = 0; i < insn->n; i++) {
- unsigned int val = data[i];
-
- s->readback[chan] = val;
-
- /* bipolar data to the DAC is two's complement */
- if (comedi_chan_range_is_bipolar(s, chan, range))
- val = comedi_offset_munge(s, val);
-
- /* order is important, MSB then LSB */
- outb((val >> 8) & 0xff, dev->iobase + PCL726_AO_MSB_REG(chan));
- outb(val & 0xff, dev->iobase + PCL726_AO_LSB_REG(chan));
- }
-
- return insn->n;
-}
-
-static int pcl726_di_insn_bits(struct comedi_device *dev,
- struct comedi_subdevice *s,
- struct comedi_insn *insn,
- unsigned int *data)
-{
- const struct pcl726_board *board = dev->board_ptr;
- unsigned int val;
-
- if (board->is_pcl727) {
- val = inb(dev->iobase + PCL727_DI_LSB_REG);
- val |= (inb(dev->iobase + PCL727_DI_MSB_REG) << 8);
- } else {
- val = inb(dev->iobase + PCL726_DI_LSB_REG);
- val |= (inb(dev->iobase + PCL726_DI_MSB_REG) << 8);
- }
-
- data[1] = val;
-
- return insn->n;
-}
-
-static int pcl726_do_insn_bits(struct comedi_device *dev,
- struct comedi_subdevice *s,
- struct comedi_insn *insn,
- unsigned int *data)
-{
- const struct pcl726_board *board = dev->board_ptr;
- unsigned long io = dev->iobase;
- unsigned int mask;
-
- mask = comedi_dio_update_state(s, data);
- if (mask) {
- if (board->is_pcl727) {
- if (mask & 0x00ff)
- outb(s->state & 0xff, io + PCL727_DO_LSB_REG);
- if (mask & 0xff00)
- outb((s->state >> 8), io + PCL727_DO_MSB_REG);
- } else {
- if (mask & 0x00ff)
- outb(s->state & 0xff, io + PCL726_DO_LSB_REG);
- if (mask & 0xff00)
- outb((s->state >> 8), io + PCL726_DO_MSB_REG);
- }
- }
-
- data[1] = s->state;
-
- return insn->n;
-}
-
-static int pcl726_attach(struct comedi_device *dev,
- struct comedi_devconfig *it)
-{
- const struct pcl726_board *board = dev->board_ptr;
- struct pcl726_private *devpriv;
- struct comedi_subdevice *s;
- int subdev;
- int ret;
- int i;
-
- ret = comedi_request_region(dev, it->options[0], board->io_len);
- if (ret)
- return ret;
-
- devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
- if (!devpriv)
- return -ENOMEM;
-
- /*
- * Hook up the external trigger source interrupt only if the
- * user config option is valid and the board supports interrupts.
- */
- if (it->options[1] && (board->irq_mask & (1 << it->options[1]))) {
- ret = request_irq(it->options[1], pcl726_interrupt, 0,
- dev->board_name, dev);
- if (ret == 0) {
- /* External trigger source is from Pin-17 of CN3 */
- dev->irq = it->options[1];
- }
- }
-
- /* setup the per-channel analog output range_table_list */
- for (i = 0; i < 12; i++) {
- unsigned int opt = it->options[2 + i];
-
- if (opt < board->ao_num_ranges && i < board->ao_nchan)
- devpriv->rangelist[i] = board->ao_ranges[opt];
- else
- devpriv->rangelist[i] = &range_unknown;
- }
-
- subdev = board->have_dio ? 3 : 1;
- if (dev->irq)
- subdev++;
- ret = comedi_alloc_subdevices(dev, subdev);
- if (ret)
- return ret;
-
- subdev = 0;
-
- /* Analog Output subdevice */
- s = &dev->subdevices[subdev++];
- s->type = COMEDI_SUBD_AO;
- s->subdev_flags = SDF_WRITABLE | SDF_GROUND;
- s->n_chan = board->ao_nchan;
- s->maxdata = 0x0fff;
- s->range_table_list = devpriv->rangelist;
- s->insn_write = pcl726_ao_insn_write;
-
- ret = comedi_alloc_subdev_readback(s);
- if (ret)
- return ret;
-
- if (board->have_dio) {
- /* Digital Input subdevice */
- s = &dev->subdevices[subdev++];
- s->type = COMEDI_SUBD_DI;
- s->subdev_flags = SDF_READABLE;
- s->n_chan = 16;
- s->maxdata = 1;
- s->insn_bits = pcl726_di_insn_bits;
- s->range_table = &range_digital;
-
- /* Digital Output subdevice */
- s = &dev->subdevices[subdev++];
- s->type = COMEDI_SUBD_DO;
- s->subdev_flags = SDF_WRITABLE;
- s->n_chan = 16;
- s->maxdata = 1;
- s->insn_bits = pcl726_do_insn_bits;
- s->range_table = &range_digital;
- }
-
- if (dev->irq) {
- /* Digital Input subdevice - Interrupt support */
- s = &dev->subdevices[subdev++];
- dev->read_subdev = s;
- s->type = COMEDI_SUBD_DI;
- s->subdev_flags = SDF_READABLE | SDF_CMD_READ;
- s->n_chan = 1;
- s->maxdata = 1;
- s->range_table = &range_digital;
- s->insn_bits = pcl726_intr_insn_bits;
- s->len_chanlist = 1;
- s->do_cmdtest = pcl726_intr_cmdtest;
- s->do_cmd = pcl726_intr_cmd;
- s->cancel = pcl726_intr_cancel;
- }
-
- return 0;
-}
-
-static struct comedi_driver pcl726_driver = {
- .driver_name = "pcl726",
- .module = THIS_MODULE,
- .attach = pcl726_attach,
- .detach = comedi_legacy_detach,
- .board_name = &pcl726_boards[0].name,
- .num_names = ARRAY_SIZE(pcl726_boards),
- .offset = sizeof(struct pcl726_board),
-};
-module_comedi_driver(pcl726_driver);
-
-MODULE_AUTHOR("Comedi https://www.comedi.org");
-MODULE_DESCRIPTION("Comedi driver for Advantech PCL-726 & compatibles");
-MODULE_LICENSE("GPL");
generated by cgit (git 2.34.1) at 2024-06-13 00:47:49 +0000