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path: root/drivers/staging/comedi/drivers/ii_pci20kc.c
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Diffstat (limited to 'drivers/staging/comedi/drivers/ii_pci20kc.c')
-rw-r--r--drivers/staging/comedi/drivers/ii_pci20kc.c524
1 files changed, 0 insertions, 524 deletions
diff --git a/drivers/staging/comedi/drivers/ii_pci20kc.c b/drivers/staging/comedi/drivers/ii_pci20kc.c
deleted file mode 100644
index 399255dbe388..000000000000
--- a/drivers/staging/comedi/drivers/ii_pci20kc.c
+++ /dev/null
@@ -1,524 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * ii_pci20kc.c
- * Driver for Intelligent Instruments PCI-20001C carrier board and modules.
- *
- * Copyright (C) 2000 Markus Kempf <kempf@matsci.uni-sb.de>
- * with suggestions from David Schleef 16.06.2000
- */
-
-/*
- * Driver: ii_pci20kc
- * Description: Intelligent Instruments PCI-20001C carrier board
- * Devices: [Intelligent Instrumentation] PCI-20001C (ii_pci20kc)
- * Author: Markus Kempf <kempf@matsci.uni-sb.de>
- * Status: works
- *
- * Supports the PCI-20001C-1a and PCI-20001C-2a carrier boards. The
- * -2a version has 32 on-board DIO channels. Three add-on modules
- * can be added to the carrier board for additional functionality.
- *
- * Supported add-on modules:
- * PCI-20006M-1 1 channel, 16-bit analog output module
- * PCI-20006M-2 2 channel, 16-bit analog output module
- * PCI-20341M-1A 4 channel, 16-bit analog input module
- *
- * Options:
- * 0 Board base address
- * 1 IRQ (not-used)
- */
-
-#include <linux/module.h>
-#include <linux/io.h>
-#include "../comedidev.h"
-
-/*
- * Register I/O map
- */
-#define II20K_SIZE 0x400
-#define II20K_MOD_OFFSET 0x100
-#define II20K_ID_REG 0x00
-#define II20K_ID_MOD1_EMPTY BIT(7)
-#define II20K_ID_MOD2_EMPTY BIT(6)
-#define II20K_ID_MOD3_EMPTY BIT(5)
-#define II20K_ID_MASK 0x1f
-#define II20K_ID_PCI20001C_1A 0x1b /* no on-board DIO */
-#define II20K_ID_PCI20001C_2A 0x1d /* on-board DIO */
-#define II20K_MOD_STATUS_REG 0x40
-#define II20K_MOD_STATUS_IRQ_MOD1 BIT(7)
-#define II20K_MOD_STATUS_IRQ_MOD2 BIT(6)
-#define II20K_MOD_STATUS_IRQ_MOD3 BIT(5)
-#define II20K_DIO0_REG 0x80
-#define II20K_DIO1_REG 0x81
-#define II20K_DIR_ENA_REG 0x82
-#define II20K_DIR_DIO3_OUT BIT(7)
-#define II20K_DIR_DIO2_OUT BIT(6)
-#define II20K_BUF_DISAB_DIO3 BIT(5)
-#define II20K_BUF_DISAB_DIO2 BIT(4)
-#define II20K_DIR_DIO1_OUT BIT(3)
-#define II20K_DIR_DIO0_OUT BIT(2)
-#define II20K_BUF_DISAB_DIO1 BIT(1)
-#define II20K_BUF_DISAB_DIO0 BIT(0)
-#define II20K_CTRL01_REG 0x83
-#define II20K_CTRL01_SET BIT(7)
-#define II20K_CTRL01_DIO0_IN BIT(4)
-#define II20K_CTRL01_DIO1_IN BIT(1)
-#define II20K_DIO2_REG 0xc0
-#define II20K_DIO3_REG 0xc1
-#define II20K_CTRL23_REG 0xc3
-#define II20K_CTRL23_SET BIT(7)
-#define II20K_CTRL23_DIO2_IN BIT(4)
-#define II20K_CTRL23_DIO3_IN BIT(1)
-
-#define II20K_ID_PCI20006M_1 0xe2 /* 1 AO channels */
-#define II20K_ID_PCI20006M_2 0xe3 /* 2 AO channels */
-#define II20K_AO_STRB_REG(x) (0x0b + ((x) * 0x08))
-#define II20K_AO_LSB_REG(x) (0x0d + ((x) * 0x08))
-#define II20K_AO_MSB_REG(x) (0x0e + ((x) * 0x08))
-#define II20K_AO_STRB_BOTH_REG 0x1b
-
-#define II20K_ID_PCI20341M_1 0x77 /* 4 AI channels */
-#define II20K_AI_STATUS_CMD_REG 0x01
-#define II20K_AI_STATUS_CMD_BUSY BIT(7)
-#define II20K_AI_STATUS_CMD_HW_ENA BIT(1)
-#define II20K_AI_STATUS_CMD_EXT_START BIT(0)
-#define II20K_AI_LSB_REG 0x02
-#define II20K_AI_MSB_REG 0x03
-#define II20K_AI_PACER_RESET_REG 0x04
-#define II20K_AI_16BIT_DATA_REG 0x06
-#define II20K_AI_CONF_REG 0x10
-#define II20K_AI_CONF_ENA BIT(2)
-#define II20K_AI_OPT_REG 0x11
-#define II20K_AI_OPT_TRIG_ENA BIT(5)
-#define II20K_AI_OPT_TRIG_INV BIT(4)
-#define II20K_AI_OPT_TIMEBASE(x) (((x) & 0x3) << 1)
-#define II20K_AI_OPT_BURST_MODE BIT(0)
-#define II20K_AI_STATUS_REG 0x12
-#define II20K_AI_STATUS_INT BIT(7)
-#define II20K_AI_STATUS_TRIG BIT(6)
-#define II20K_AI_STATUS_TRIG_ENA BIT(5)
-#define II20K_AI_STATUS_PACER_ERR BIT(2)
-#define II20K_AI_STATUS_DATA_ERR BIT(1)
-#define II20K_AI_STATUS_SET_TIME_ERR BIT(0)
-#define II20K_AI_LAST_CHAN_ADDR_REG 0x13
-#define II20K_AI_CUR_ADDR_REG 0x14
-#define II20K_AI_SET_TIME_REG 0x15
-#define II20K_AI_DELAY_LSB_REG 0x16
-#define II20K_AI_DELAY_MSB_REG 0x17
-#define II20K_AI_CHAN_ADV_REG 0x18
-#define II20K_AI_CHAN_RESET_REG 0x19
-#define II20K_AI_START_TRIG_REG 0x1a
-#define II20K_AI_COUNT_RESET_REG 0x1b
-#define II20K_AI_CHANLIST_REG 0x80
-#define II20K_AI_CHANLIST_ONBOARD_ONLY BIT(5)
-#define II20K_AI_CHANLIST_GAIN(x) (((x) & 0x3) << 3)
-#define II20K_AI_CHANLIST_MUX_ENA BIT(2)
-#define II20K_AI_CHANLIST_CHAN(x) (((x) & 0x3) << 0)
-#define II20K_AI_CHANLIST_LEN 0x80
-
-/* the AO range is set by jumpers on the 20006M module */
-static const struct comedi_lrange ii20k_ao_ranges = {
- 3, {
- BIP_RANGE(5), /* Chan 0 - W1/W3 in Chan 1 - W2/W4 in */
- UNI_RANGE(10), /* Chan 0 - W1/W3 out Chan 1 - W2/W4 in */
- BIP_RANGE(10) /* Chan 0 - W1/W3 in Chan 1 - W2/W4 out */
- }
-};
-
-static const struct comedi_lrange ii20k_ai_ranges = {
- 4, {
- BIP_RANGE(5), /* gain 1 */
- BIP_RANGE(0.5), /* gain 10 */
- BIP_RANGE(0.05), /* gain 100 */
- BIP_RANGE(0.025) /* gain 200 */
- },
-};
-
-static void __iomem *ii20k_module_iobase(struct comedi_device *dev,
- struct comedi_subdevice *s)
-{
- return dev->mmio + (s->index + 1) * II20K_MOD_OFFSET;
-}
-
-static int ii20k_ao_insn_write(struct comedi_device *dev,
- struct comedi_subdevice *s,
- struct comedi_insn *insn,
- unsigned int *data)
-{
- void __iomem *iobase = ii20k_module_iobase(dev, s);
- unsigned int chan = CR_CHAN(insn->chanspec);
- int i;
-
- for (i = 0; i < insn->n; i++) {
- unsigned int val = data[i];
-
- s->readback[chan] = val;
-
- /* munge the offset binary data to 2's complement */
- val = comedi_offset_munge(s, val);
-
- writeb(val & 0xff, iobase + II20K_AO_LSB_REG(chan));
- writeb((val >> 8) & 0xff, iobase + II20K_AO_MSB_REG(chan));
- writeb(0x00, iobase + II20K_AO_STRB_REG(chan));
- }
-
- return insn->n;
-}
-
-static int ii20k_ai_eoc(struct comedi_device *dev,
- struct comedi_subdevice *s,
- struct comedi_insn *insn,
- unsigned long context)
-{
- void __iomem *iobase = ii20k_module_iobase(dev, s);
- unsigned char status;
-
- status = readb(iobase + II20K_AI_STATUS_REG);
- if ((status & II20K_AI_STATUS_INT) == 0)
- return 0;
- return -EBUSY;
-}
-
-static void ii20k_ai_setup(struct comedi_device *dev,
- struct comedi_subdevice *s,
- unsigned int chanspec)
-{
- void __iomem *iobase = ii20k_module_iobase(dev, s);
- unsigned int chan = CR_CHAN(chanspec);
- unsigned int range = CR_RANGE(chanspec);
- unsigned char val;
-
- /* initialize module */
- writeb(II20K_AI_CONF_ENA, iobase + II20K_AI_CONF_REG);
-
- /* software conversion */
- writeb(0, iobase + II20K_AI_STATUS_CMD_REG);
-
- /* set the time base for the settling time counter based on the gain */
- val = (range < 3) ? II20K_AI_OPT_TIMEBASE(0) : II20K_AI_OPT_TIMEBASE(2);
- writeb(val, iobase + II20K_AI_OPT_REG);
-
- /* set the settling time counter based on the gain */
- val = (range < 2) ? 0x58 : (range < 3) ? 0x93 : 0x99;
- writeb(val, iobase + II20K_AI_SET_TIME_REG);
-
- /* set number of input channels */
- writeb(1, iobase + II20K_AI_LAST_CHAN_ADDR_REG);
-
- /* set the channel list byte */
- val = II20K_AI_CHANLIST_ONBOARD_ONLY |
- II20K_AI_CHANLIST_MUX_ENA |
- II20K_AI_CHANLIST_GAIN(range) |
- II20K_AI_CHANLIST_CHAN(chan);
- writeb(val, iobase + II20K_AI_CHANLIST_REG);
-
- /* reset settling time counter and trigger delay counter */
- writeb(0, iobase + II20K_AI_COUNT_RESET_REG);
-
- /* reset channel scanner */
- writeb(0, iobase + II20K_AI_CHAN_RESET_REG);
-}
-
-static int ii20k_ai_insn_read(struct comedi_device *dev,
- struct comedi_subdevice *s,
- struct comedi_insn *insn,
- unsigned int *data)
-{
- void __iomem *iobase = ii20k_module_iobase(dev, s);
- int ret;
- int i;
-
- ii20k_ai_setup(dev, s, insn->chanspec);
-
- for (i = 0; i < insn->n; i++) {
- unsigned int val;
-
- /* generate a software start convert signal */
- readb(iobase + II20K_AI_PACER_RESET_REG);
-
- ret = comedi_timeout(dev, s, insn, ii20k_ai_eoc, 0);
- if (ret)
- return ret;
-
- val = readb(iobase + II20K_AI_LSB_REG);
- val |= (readb(iobase + II20K_AI_MSB_REG) << 8);
-
- /* munge the 2's complement data to offset binary */
- data[i] = comedi_offset_munge(s, val);
- }
-
- return insn->n;
-}
-
-static void ii20k_dio_config(struct comedi_device *dev,
- struct comedi_subdevice *s)
-{
- unsigned char ctrl01 = 0;
- unsigned char ctrl23 = 0;
- unsigned char dir_ena = 0;
-
- /* port 0 - channels 0-7 */
- if (s->io_bits & 0x000000ff) {
- /* output port */
- ctrl01 &= ~II20K_CTRL01_DIO0_IN;
- dir_ena &= ~II20K_BUF_DISAB_DIO0;
- dir_ena |= II20K_DIR_DIO0_OUT;
- } else {
- /* input port */
- ctrl01 |= II20K_CTRL01_DIO0_IN;
- dir_ena &= ~II20K_DIR_DIO0_OUT;
- }
-
- /* port 1 - channels 8-15 */
- if (s->io_bits & 0x0000ff00) {
- /* output port */
- ctrl01 &= ~II20K_CTRL01_DIO1_IN;
- dir_ena &= ~II20K_BUF_DISAB_DIO1;
- dir_ena |= II20K_DIR_DIO1_OUT;
- } else {
- /* input port */
- ctrl01 |= II20K_CTRL01_DIO1_IN;
- dir_ena &= ~II20K_DIR_DIO1_OUT;
- }
-
- /* port 2 - channels 16-23 */
- if (s->io_bits & 0x00ff0000) {
- /* output port */
- ctrl23 &= ~II20K_CTRL23_DIO2_IN;
- dir_ena &= ~II20K_BUF_DISAB_DIO2;
- dir_ena |= II20K_DIR_DIO2_OUT;
- } else {
- /* input port */
- ctrl23 |= II20K_CTRL23_DIO2_IN;
- dir_ena &= ~II20K_DIR_DIO2_OUT;
- }
-
- /* port 3 - channels 24-31 */
- if (s->io_bits & 0xff000000) {
- /* output port */
- ctrl23 &= ~II20K_CTRL23_DIO3_IN;
- dir_ena &= ~II20K_BUF_DISAB_DIO3;
- dir_ena |= II20K_DIR_DIO3_OUT;
- } else {
- /* input port */
- ctrl23 |= II20K_CTRL23_DIO3_IN;
- dir_ena &= ~II20K_DIR_DIO3_OUT;
- }
-
- ctrl23 |= II20K_CTRL01_SET;
- ctrl23 |= II20K_CTRL23_SET;
-
- /* order is important */
- writeb(ctrl01, dev->mmio + II20K_CTRL01_REG);
- writeb(ctrl23, dev->mmio + II20K_CTRL23_REG);
- writeb(dir_ena, dev->mmio + II20K_DIR_ENA_REG);
-}
-
-static int ii20k_dio_insn_config(struct comedi_device *dev,
- struct comedi_subdevice *s,
- struct comedi_insn *insn,
- unsigned int *data)
-{
- unsigned int chan = CR_CHAN(insn->chanspec);
- unsigned int mask;
- int ret;
-
- if (chan < 8)
- mask = 0x000000ff;
- else if (chan < 16)
- mask = 0x0000ff00;
- else if (chan < 24)
- mask = 0x00ff0000;
- else
- mask = 0xff000000;
-
- ret = comedi_dio_insn_config(dev, s, insn, data, mask);
- if (ret)
- return ret;
-
- ii20k_dio_config(dev, s);
-
- return insn->n;
-}
-
-static int ii20k_dio_insn_bits(struct comedi_device *dev,
- struct comedi_subdevice *s,
- struct comedi_insn *insn,
- unsigned int *data)
-{
- unsigned int mask;
-
- mask = comedi_dio_update_state(s, data);
- if (mask) {
- if (mask & 0x000000ff)
- writeb((s->state >> 0) & 0xff,
- dev->mmio + II20K_DIO0_REG);
- if (mask & 0x0000ff00)
- writeb((s->state >> 8) & 0xff,
- dev->mmio + II20K_DIO1_REG);
- if (mask & 0x00ff0000)
- writeb((s->state >> 16) & 0xff,
- dev->mmio + II20K_DIO2_REG);
- if (mask & 0xff000000)
- writeb((s->state >> 24) & 0xff,
- dev->mmio + II20K_DIO3_REG);
- }
-
- data[1] = readb(dev->mmio + II20K_DIO0_REG);
- data[1] |= readb(dev->mmio + II20K_DIO1_REG) << 8;
- data[1] |= readb(dev->mmio + II20K_DIO2_REG) << 16;
- data[1] |= readb(dev->mmio + II20K_DIO3_REG) << 24;
-
- return insn->n;
-}
-
-static int ii20k_init_module(struct comedi_device *dev,
- struct comedi_subdevice *s)
-{
- void __iomem *iobase = ii20k_module_iobase(dev, s);
- unsigned char id;
- int ret;
-
- id = readb(iobase + II20K_ID_REG);
- switch (id) {
- case II20K_ID_PCI20006M_1:
- case II20K_ID_PCI20006M_2:
- /* Analog Output subdevice */
- s->type = COMEDI_SUBD_AO;
- s->subdev_flags = SDF_WRITABLE;
- s->n_chan = (id == II20K_ID_PCI20006M_2) ? 2 : 1;
- s->maxdata = 0xffff;
- s->range_table = &ii20k_ao_ranges;
- s->insn_write = ii20k_ao_insn_write;
-
- ret = comedi_alloc_subdev_readback(s);
- if (ret)
- return ret;
- break;
- case II20K_ID_PCI20341M_1:
- /* Analog Input subdevice */
- s->type = COMEDI_SUBD_AI;
- s->subdev_flags = SDF_READABLE | SDF_DIFF;
- s->n_chan = 4;
- s->maxdata = 0xffff;
- s->range_table = &ii20k_ai_ranges;
- s->insn_read = ii20k_ai_insn_read;
- break;
- default:
- s->type = COMEDI_SUBD_UNUSED;
- break;
- }
-
- return 0;
-}
-
-static int ii20k_attach(struct comedi_device *dev,
- struct comedi_devconfig *it)
-{
- struct comedi_subdevice *s;
- unsigned int membase;
- unsigned char id;
- bool has_dio;
- int ret;
-
- membase = it->options[0];
- if (!membase || (membase & ~(0x100000 - II20K_SIZE))) {
- dev_warn(dev->class_dev,
- "%s: invalid memory address specified\n",
- dev->board_name);
- return -EINVAL;
- }
-
- if (!request_mem_region(membase, II20K_SIZE, dev->board_name)) {
- dev_warn(dev->class_dev, "%s: I/O mem conflict (%#x,%u)\n",
- dev->board_name, membase, II20K_SIZE);
- return -EIO;
- }
- dev->iobase = membase; /* actually, a memory address */
-
- dev->mmio = ioremap(membase, II20K_SIZE);
- if (!dev->mmio)
- return -ENOMEM;
-
- id = readb(dev->mmio + II20K_ID_REG);
- switch (id & II20K_ID_MASK) {
- case II20K_ID_PCI20001C_1A:
- has_dio = false;
- break;
- case II20K_ID_PCI20001C_2A:
- has_dio = true;
- break;
- default:
- return -ENODEV;
- }
-
- ret = comedi_alloc_subdevices(dev, 4);
- if (ret)
- return ret;
-
- s = &dev->subdevices[0];
- if (id & II20K_ID_MOD1_EMPTY) {
- s->type = COMEDI_SUBD_UNUSED;
- } else {
- ret = ii20k_init_module(dev, s);
- if (ret)
- return ret;
- }
-
- s = &dev->subdevices[1];
- if (id & II20K_ID_MOD2_EMPTY) {
- s->type = COMEDI_SUBD_UNUSED;
- } else {
- ret = ii20k_init_module(dev, s);
- if (ret)
- return ret;
- }
-
- s = &dev->subdevices[2];
- if (id & II20K_ID_MOD3_EMPTY) {
- s->type = COMEDI_SUBD_UNUSED;
- } else {
- ret = ii20k_init_module(dev, s);
- if (ret)
- return ret;
- }
-
- /* Digital I/O subdevice */
- s = &dev->subdevices[3];
- if (has_dio) {
- s->type = COMEDI_SUBD_DIO;
- s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
- s->n_chan = 32;
- s->maxdata = 1;
- s->range_table = &range_digital;
- s->insn_bits = ii20k_dio_insn_bits;
- s->insn_config = ii20k_dio_insn_config;
-
- /* default all channels to input */
- ii20k_dio_config(dev, s);
- } else {
- s->type = COMEDI_SUBD_UNUSED;
- }
-
- return 0;
-}
-
-static void ii20k_detach(struct comedi_device *dev)
-{
- if (dev->mmio)
- iounmap(dev->mmio);
- if (dev->iobase) /* actually, a memory address */
- release_mem_region(dev->iobase, II20K_SIZE);
-}
-
-static struct comedi_driver ii20k_driver = {
- .driver_name = "ii_pci20kc",
- .module = THIS_MODULE,
- .attach = ii20k_attach,
- .detach = ii20k_detach,
-};
-module_comedi_driver(ii20k_driver);
-
-MODULE_AUTHOR("Comedi https://www.comedi.org");
-MODULE_DESCRIPTION("Comedi driver for Intelligent Instruments PCI-20001C");
-MODULE_LICENSE("GPL");
generated by cgit (git 2.34.1) at 2024-06-12 22:42:34 +0000