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Diffstat (limited to 'drivers/staging/comedi/drivers/rti800.c')
-rw-r--r--drivers/staging/comedi/drivers/rti800.c357
1 files changed, 0 insertions, 357 deletions
diff --git a/drivers/staging/comedi/drivers/rti800.c b/drivers/staging/comedi/drivers/rti800.c
deleted file mode 100644
index 327fd93b8b12..000000000000
--- a/drivers/staging/comedi/drivers/rti800.c
+++ /dev/null
@@ -1,357 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * comedi/drivers/rti800.c
- * Hardware driver for Analog Devices RTI-800/815 board
- *
- * COMEDI - Linux Control and Measurement Device Interface
- * Copyright (C) 1998 David A. Schleef <ds@schleef.org>
- */
-
-/*
- * Driver: rti800
- * Description: Analog Devices RTI-800/815
- * Devices: [Analog Devices] RTI-800 (rti800), RTI-815 (rti815)
- * Author: David A. Schleef <ds@schleef.org>
- * Status: unknown
- * Updated: Fri, 05 Sep 2008 14:50:44 +0100
- *
- * Configuration options:
- * [0] - I/O port base address
- * [1] - IRQ (not supported / unused)
- * [2] - A/D mux/reference (number of channels)
- * 0 = differential
- * 1 = pseudodifferential (common)
- * 2 = single-ended
- * [3] - A/D range
- * 0 = [-10,10]
- * 1 = [-5,5]
- * 2 = [0,10]
- * [4] - A/D encoding
- * 0 = two's complement
- * 1 = straight binary
- * [5] - DAC 0 range
- * 0 = [-10,10]
- * 1 = [0,10]
- * [6] - DAC 0 encoding
- * 0 = two's complement
- * 1 = straight binary
- * [7] - DAC 1 range (same as DAC 0)
- * [8] - DAC 1 encoding (same as DAC 0)
- */
-
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include "../comedidev.h"
-
-/*
- * Register map
- */
-#define RTI800_CSR 0x00
-#define RTI800_CSR_BUSY BIT(7)
-#define RTI800_CSR_DONE BIT(6)
-#define RTI800_CSR_OVERRUN BIT(5)
-#define RTI800_CSR_TCR BIT(4)
-#define RTI800_CSR_DMA_ENAB BIT(3)
-#define RTI800_CSR_INTR_TC BIT(2)
-#define RTI800_CSR_INTR_EC BIT(1)
-#define RTI800_CSR_INTR_OVRN BIT(0)
-#define RTI800_MUXGAIN 0x01
-#define RTI800_CONVERT 0x02
-#define RTI800_ADCLO 0x03
-#define RTI800_ADCHI 0x04
-#define RTI800_DAC0LO 0x05
-#define RTI800_DAC0HI 0x06
-#define RTI800_DAC1LO 0x07
-#define RTI800_DAC1HI 0x08
-#define RTI800_CLRFLAGS 0x09
-#define RTI800_DI 0x0a
-#define RTI800_DO 0x0b
-#define RTI800_9513A_DATA 0x0c
-#define RTI800_9513A_CNTRL 0x0d
-#define RTI800_9513A_STATUS 0x0d
-
-static const struct comedi_lrange range_rti800_ai_10_bipolar = {
- 4, {
- BIP_RANGE(10),
- BIP_RANGE(1),
- BIP_RANGE(0.1),
- BIP_RANGE(0.02)
- }
-};
-
-static const struct comedi_lrange range_rti800_ai_5_bipolar = {
- 4, {
- BIP_RANGE(5),
- BIP_RANGE(0.5),
- BIP_RANGE(0.05),
- BIP_RANGE(0.01)
- }
-};
-
-static const struct comedi_lrange range_rti800_ai_unipolar = {
- 4, {
- UNI_RANGE(10),
- UNI_RANGE(1),
- UNI_RANGE(0.1),
- UNI_RANGE(0.02)
- }
-};
-
-static const struct comedi_lrange *const rti800_ai_ranges[] = {
- &range_rti800_ai_10_bipolar,
- &range_rti800_ai_5_bipolar,
- &range_rti800_ai_unipolar,
-};
-
-static const struct comedi_lrange *const rti800_ao_ranges[] = {
- &range_bipolar10,
- &range_unipolar10,
-};
-
-struct rti800_board {
- const char *name;
- int has_ao;
-};
-
-static const struct rti800_board rti800_boardtypes[] = {
- {
- .name = "rti800",
- }, {
- .name = "rti815",
- .has_ao = 1,
- },
-};
-
-struct rti800_private {
- bool adc_2comp;
- bool dac_2comp[2];
- const struct comedi_lrange *ao_range_type_list[2];
- unsigned char muxgain_bits;
-};
-
-static int rti800_ai_eoc(struct comedi_device *dev,
- struct comedi_subdevice *s,
- struct comedi_insn *insn,
- unsigned long context)
-{
- unsigned char status;
-
- status = inb(dev->iobase + RTI800_CSR);
- if (status & RTI800_CSR_OVERRUN) {
- outb(0, dev->iobase + RTI800_CLRFLAGS);
- return -EOVERFLOW;
- }
- if (status & RTI800_CSR_DONE)
- return 0;
- return -EBUSY;
-}
-
-static int rti800_ai_insn_read(struct comedi_device *dev,
- struct comedi_subdevice *s,
- struct comedi_insn *insn,
- unsigned int *data)
-{
- struct rti800_private *devpriv = dev->private;
- unsigned int chan = CR_CHAN(insn->chanspec);
- unsigned int gain = CR_RANGE(insn->chanspec);
- unsigned char muxgain_bits;
- int ret;
- int i;
-
- inb(dev->iobase + RTI800_ADCHI);
- outb(0, dev->iobase + RTI800_CLRFLAGS);
-
- muxgain_bits = chan | (gain << 5);
- if (muxgain_bits != devpriv->muxgain_bits) {
- devpriv->muxgain_bits = muxgain_bits;
- outb(devpriv->muxgain_bits, dev->iobase + RTI800_MUXGAIN);
- /*
- * Without a delay here, the RTI_CSR_OVERRUN bit
- * gets set, and you will have an error.
- */
- if (insn->n > 0) {
- int delay = (gain == 0) ? 10 :
- (gain == 1) ? 20 :
- (gain == 2) ? 40 : 80;
-
- udelay(delay);
- }
- }
-
- for (i = 0; i < insn->n; i++) {
- unsigned int val;
-
- outb(0, dev->iobase + RTI800_CONVERT);
-
- ret = comedi_timeout(dev, s, insn, rti800_ai_eoc, 0);
- if (ret)
- return ret;
-
- val = inb(dev->iobase + RTI800_ADCLO);
- val |= (inb(dev->iobase + RTI800_ADCHI) & 0xf) << 8;
-
- if (devpriv->adc_2comp)
- val = comedi_offset_munge(s, val);
-
- data[i] = val;
- }
-
- return insn->n;
-}
-
-static int rti800_ao_insn_write(struct comedi_device *dev,
- struct comedi_subdevice *s,
- struct comedi_insn *insn,
- unsigned int *data)
-{
- struct rti800_private *devpriv = dev->private;
- unsigned int chan = CR_CHAN(insn->chanspec);
- int reg_lo = chan ? RTI800_DAC1LO : RTI800_DAC0LO;
- int reg_hi = chan ? RTI800_DAC1HI : RTI800_DAC0HI;
- int i;
-
- for (i = 0; i < insn->n; i++) {
- unsigned int val = data[i];
-
- s->readback[chan] = val;
-
- if (devpriv->dac_2comp[chan])
- val = comedi_offset_munge(s, val);
-
- outb(val & 0xff, dev->iobase + reg_lo);
- outb((val >> 8) & 0xff, dev->iobase + reg_hi);
- }
-
- return insn->n;
-}
-
-static int rti800_di_insn_bits(struct comedi_device *dev,
- struct comedi_subdevice *s,
- struct comedi_insn *insn,
- unsigned int *data)
-{
- data[1] = inb(dev->iobase + RTI800_DI);
- return insn->n;
-}
-
-static int rti800_do_insn_bits(struct comedi_device *dev,
- struct comedi_subdevice *s,
- struct comedi_insn *insn,
- unsigned int *data)
-{
- if (comedi_dio_update_state(s, data)) {
- /* Outputs are inverted... */
- outb(s->state ^ 0xff, dev->iobase + RTI800_DO);
- }
-
- data[1] = s->state;
-
- return insn->n;
-}
-
-static int rti800_attach(struct comedi_device *dev, struct comedi_devconfig *it)
-{
- const struct rti800_board *board = dev->board_ptr;
- struct rti800_private *devpriv;
- struct comedi_subdevice *s;
- int ret;
-
- ret = comedi_request_region(dev, it->options[0], 0x10);
- if (ret)
- return ret;
-
- outb(0, dev->iobase + RTI800_CSR);
- inb(dev->iobase + RTI800_ADCHI);
- outb(0, dev->iobase + RTI800_CLRFLAGS);
-
- devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
- if (!devpriv)
- return -ENOMEM;
-
- devpriv->adc_2comp = (it->options[4] == 0);
- devpriv->dac_2comp[0] = (it->options[6] == 0);
- devpriv->dac_2comp[1] = (it->options[8] == 0);
- /* invalid, forces the MUXGAIN register to be set when first used */
- devpriv->muxgain_bits = 0xff;
-
- ret = comedi_alloc_subdevices(dev, 4);
- if (ret)
- return ret;
-
- s = &dev->subdevices[0];
- /* ai subdevice */
- s->type = COMEDI_SUBD_AI;
- s->subdev_flags = SDF_READABLE | SDF_GROUND;
- s->n_chan = (it->options[2] ? 16 : 8);
- s->insn_read = rti800_ai_insn_read;
- s->maxdata = 0x0fff;
- s->range_table = (it->options[3] < ARRAY_SIZE(rti800_ai_ranges))
- ? rti800_ai_ranges[it->options[3]]
- : &range_unknown;
-
- s = &dev->subdevices[1];
- if (board->has_ao) {
- /* ao subdevice (only on rti815) */
- s->type = COMEDI_SUBD_AO;
- s->subdev_flags = SDF_WRITABLE;
- s->n_chan = 2;
- s->maxdata = 0x0fff;
- s->range_table_list = devpriv->ao_range_type_list;
- devpriv->ao_range_type_list[0] =
- (it->options[5] < ARRAY_SIZE(rti800_ao_ranges))
- ? rti800_ao_ranges[it->options[5]]
- : &range_unknown;
- devpriv->ao_range_type_list[1] =
- (it->options[7] < ARRAY_SIZE(rti800_ao_ranges))
- ? rti800_ao_ranges[it->options[7]]
- : &range_unknown;
- s->insn_write = rti800_ao_insn_write;
-
- ret = comedi_alloc_subdev_readback(s);
- if (ret)
- return ret;
- } else {
- s->type = COMEDI_SUBD_UNUSED;
- }
-
- s = &dev->subdevices[2];
- /* di */
- s->type = COMEDI_SUBD_DI;
- s->subdev_flags = SDF_READABLE;
- s->n_chan = 8;
- s->insn_bits = rti800_di_insn_bits;
- s->maxdata = 1;
- s->range_table = &range_digital;
-
- s = &dev->subdevices[3];
- /* do */
- s->type = COMEDI_SUBD_DO;
- s->subdev_flags = SDF_WRITABLE;
- s->n_chan = 8;
- s->insn_bits = rti800_do_insn_bits;
- s->maxdata = 1;
- s->range_table = &range_digital;
-
- /*
- * There is also an Am9513 timer on these boards. This subdevice
- * is not currently supported.
- */
-
- return 0;
-}
-
-static struct comedi_driver rti800_driver = {
- .driver_name = "rti800",
- .module = THIS_MODULE,
- .attach = rti800_attach,
- .detach = comedi_legacy_detach,
- .num_names = ARRAY_SIZE(rti800_boardtypes),
- .board_name = &rti800_boardtypes[0].name,
- .offset = sizeof(struct rti800_board),
-};
-module_comedi_driver(rti800_driver);
-
-MODULE_DESCRIPTION("Comedi: RTI-800 Multifunction Analog/Digital board");
-MODULE_AUTHOR("Comedi https://www.comedi.org");
-MODULE_LICENSE("GPL");
generated by cgit (git 2.34.1) at 2024-06-12 18:53:49 +0000