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Diffstat (limited to 'drivers/staging/comedi/drivers/addi_apci_1032.c')
-rw-r--r--drivers/staging/comedi/drivers/addi_apci_1032.c396
1 files changed, 0 insertions, 396 deletions
diff --git a/drivers/staging/comedi/drivers/addi_apci_1032.c b/drivers/staging/comedi/drivers/addi_apci_1032.c
deleted file mode 100644
index 81a246fbcc01..000000000000
--- a/drivers/staging/comedi/drivers/addi_apci_1032.c
+++ /dev/null
@@ -1,396 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * addi_apci_1032.c
- * Copyright (C) 2004,2005 ADDI-DATA GmbH for the source code of this module.
- * Project manager: Eric Stolz
- *
- * ADDI-DATA GmbH
- * Dieselstrasse 3
- * D-77833 Ottersweier
- * Tel: +19(0)7223/9493-0
- * Fax: +49(0)7223/9493-92
- * http://www.addi-data.com
- * info@addi-data.com
- */
-
-/*
- * Driver: addi_apci_1032
- * Description: ADDI-DATA APCI-1032 Digital Input Board
- * Author: ADDI-DATA GmbH <info@addi-data.com>,
- * H Hartley Sweeten <hsweeten@visionengravers.com>
- * Status: untested
- * Devices: [ADDI-DATA] APCI-1032 (addi_apci_1032)
- *
- * Configuration options:
- * None; devices are configured automatically.
- *
- * This driver models the APCI-1032 as a 32-channel, digital input subdevice
- * plus an additional digital input subdevice to handle change-of-state (COS)
- * interrupts (if an interrupt handler can be set up successfully).
- *
- * The COS subdevice supports comedi asynchronous read commands.
- *
- * Change-Of-State (COS) interrupt configuration:
- *
- * Channels 0 to 15 are interruptible. These channels can be configured
- * to generate interrupts based on AND/OR logic for the desired channels.
- *
- * OR logic:
- * - reacts to rising or falling edges
- * - interrupt is generated when any enabled channel meets the desired
- * interrupt condition
- *
- * AND logic:
- * - reacts to changes in level of the selected inputs
- * - interrupt is generated when all enabled channels meet the desired
- * interrupt condition
- * - after an interrupt, a change in level must occur on the selected
- * inputs to release the IRQ logic
- *
- * The COS subdevice must be configured before setting up a comedi
- * asynchronous command:
- *
- * data[0] : INSN_CONFIG_DIGITAL_TRIG
- * data[1] : trigger number (= 0)
- * data[2] : configuration operation:
- * - COMEDI_DIGITAL_TRIG_DISABLE = no interrupts
- * - COMEDI_DIGITAL_TRIG_ENABLE_EDGES = OR (edge) interrupts
- * - COMEDI_DIGITAL_TRIG_ENABLE_LEVELS = AND (level) interrupts
- * data[3] : left-shift for data[4] and data[5]
- * data[4] : rising-edge/high level channels
- * data[5] : falling-edge/low level channels
- */
-
-#include <linux/module.h>
-#include <linux/interrupt.h>
-
-#include "../comedi_pci.h"
-#include "amcc_s5933.h"
-
-/*
- * I/O Register Map
- */
-#define APCI1032_DI_REG 0x00
-#define APCI1032_MODE1_REG 0x04
-#define APCI1032_MODE2_REG 0x08
-#define APCI1032_STATUS_REG 0x0c
-#define APCI1032_CTRL_REG 0x10
-#define APCI1032_CTRL_INT_MODE(x) (((x) & 0x1) << 1)
-#define APCI1032_CTRL_INT_OR APCI1032_CTRL_INT_MODE(0)
-#define APCI1032_CTRL_INT_AND APCI1032_CTRL_INT_MODE(1)
-#define APCI1032_CTRL_INT_ENA BIT(2)
-
-struct apci1032_private {
- unsigned long amcc_iobase; /* base of AMCC I/O registers */
- unsigned int mode1; /* rising-edge/high level channels */
- unsigned int mode2; /* falling-edge/low level channels */
- unsigned int ctrl; /* interrupt mode OR (edge) . AND (level) */
-};
-
-static int apci1032_reset(struct comedi_device *dev)
-{
- /* disable the interrupts */
- outl(0x0, dev->iobase + APCI1032_CTRL_REG);
- /* Reset the interrupt status register */
- inl(dev->iobase + APCI1032_STATUS_REG);
- /* Disable the and/or interrupt */
- outl(0x0, dev->iobase + APCI1032_MODE1_REG);
- outl(0x0, dev->iobase + APCI1032_MODE2_REG);
-
- return 0;
-}
-
-static int apci1032_cos_insn_config(struct comedi_device *dev,
- struct comedi_subdevice *s,
- struct comedi_insn *insn,
- unsigned int *data)
-{
- struct apci1032_private *devpriv = dev->private;
- unsigned int shift, oldmask, himask, lomask;
-
- switch (data[0]) {
- case INSN_CONFIG_DIGITAL_TRIG:
- if (data[1] != 0)
- return -EINVAL;
- shift = data[3];
- if (shift < 32) {
- oldmask = (1U << shift) - 1;
- himask = data[4] << shift;
- lomask = data[5] << shift;
- } else {
- oldmask = 0xffffffffu;
- himask = 0;
- lomask = 0;
- }
- switch (data[2]) {
- case COMEDI_DIGITAL_TRIG_DISABLE:
- devpriv->ctrl = 0;
- devpriv->mode1 = 0;
- devpriv->mode2 = 0;
- apci1032_reset(dev);
- break;
- case COMEDI_DIGITAL_TRIG_ENABLE_EDGES:
- if (devpriv->ctrl != (APCI1032_CTRL_INT_ENA |
- APCI1032_CTRL_INT_OR)) {
- /* switching to 'OR' mode */
- devpriv->ctrl = APCI1032_CTRL_INT_ENA |
- APCI1032_CTRL_INT_OR;
- /* wipe old channels */
- devpriv->mode1 = 0;
- devpriv->mode2 = 0;
- } else {
- /* preserve unspecified channels */
- devpriv->mode1 &= oldmask;
- devpriv->mode2 &= oldmask;
- }
- /* configure specified channels */
- devpriv->mode1 |= himask;
- devpriv->mode2 |= lomask;
- break;
- case COMEDI_DIGITAL_TRIG_ENABLE_LEVELS:
- if (devpriv->ctrl != (APCI1032_CTRL_INT_ENA |
- APCI1032_CTRL_INT_AND)) {
- /* switching to 'AND' mode */
- devpriv->ctrl = APCI1032_CTRL_INT_ENA |
- APCI1032_CTRL_INT_AND;
- /* wipe old channels */
- devpriv->mode1 = 0;
- devpriv->mode2 = 0;
- } else {
- /* preserve unspecified channels */
- devpriv->mode1 &= oldmask;
- devpriv->mode2 &= oldmask;
- }
- /* configure specified channels */
- devpriv->mode1 |= himask;
- devpriv->mode2 |= lomask;
- break;
- default:
- return -EINVAL;
- }
- break;
- default:
- return -EINVAL;
- }
-
- return insn->n;
-}
-
-static int apci1032_cos_insn_bits(struct comedi_device *dev,
- struct comedi_subdevice *s,
- struct comedi_insn *insn,
- unsigned int *data)
-{
- data[1] = s->state;
-
- return 0;
-}
-
-static int apci1032_cos_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;
-}
-
-/*
- * Change-Of-State (COS) 'do_cmd' operation
- *
- * Enable the COS interrupt as configured by apci1032_cos_insn_config().
- */
-static int apci1032_cos_cmd(struct comedi_device *dev,
- struct comedi_subdevice *s)
-{
- struct apci1032_private *devpriv = dev->private;
-
- if (!devpriv->ctrl) {
- dev_warn(dev->class_dev,
- "Interrupts disabled due to mode configuration!\n");
- return -EINVAL;
- }
-
- outl(devpriv->mode1, dev->iobase + APCI1032_MODE1_REG);
- outl(devpriv->mode2, dev->iobase + APCI1032_MODE2_REG);
- outl(devpriv->ctrl, dev->iobase + APCI1032_CTRL_REG);
-
- return 0;
-}
-
-static int apci1032_cos_cancel(struct comedi_device *dev,
- struct comedi_subdevice *s)
-{
- return apci1032_reset(dev);
-}
-
-static irqreturn_t apci1032_interrupt(int irq, void *d)
-{
- struct comedi_device *dev = d;
- struct apci1032_private *devpriv = dev->private;
- struct comedi_subdevice *s = dev->read_subdev;
- unsigned int ctrl;
- unsigned short val;
-
- /* check interrupt is from this device */
- if ((inl(devpriv->amcc_iobase + AMCC_OP_REG_INTCSR) &
- INTCSR_INTR_ASSERTED) == 0)
- return IRQ_NONE;
-
- /* check interrupt is enabled */
- ctrl = inl(dev->iobase + APCI1032_CTRL_REG);
- if ((ctrl & APCI1032_CTRL_INT_ENA) == 0)
- return IRQ_HANDLED;
-
- /* disable the interrupt */
- outl(ctrl & ~APCI1032_CTRL_INT_ENA, dev->iobase + APCI1032_CTRL_REG);
-
- s->state = inl(dev->iobase + APCI1032_STATUS_REG) & 0xffff;
- val = s->state;
- comedi_buf_write_samples(s, &val, 1);
- comedi_handle_events(dev, s);
-
- /* enable the interrupt */
- outl(ctrl, dev->iobase + APCI1032_CTRL_REG);
-
- return IRQ_HANDLED;
-}
-
-static int apci1032_di_insn_bits(struct comedi_device *dev,
- struct comedi_subdevice *s,
- struct comedi_insn *insn,
- unsigned int *data)
-{
- data[1] = inl(dev->iobase + APCI1032_DI_REG);
-
- return insn->n;
-}
-
-static int apci1032_auto_attach(struct comedi_device *dev,
- unsigned long context_unused)
-{
- struct pci_dev *pcidev = comedi_to_pci_dev(dev);
- struct apci1032_private *devpriv;
- struct comedi_subdevice *s;
- int ret;
-
- devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
- if (!devpriv)
- return -ENOMEM;
-
- ret = comedi_pci_enable(dev);
- if (ret)
- return ret;
-
- devpriv->amcc_iobase = pci_resource_start(pcidev, 0);
- dev->iobase = pci_resource_start(pcidev, 1);
- apci1032_reset(dev);
- if (pcidev->irq > 0) {
- ret = request_irq(pcidev->irq, apci1032_interrupt, IRQF_SHARED,
- dev->board_name, dev);
- if (ret == 0)
- dev->irq = pcidev->irq;
- }
-
- ret = comedi_alloc_subdevices(dev, 2);
- if (ret)
- return ret;
-
- /* Allocate and Initialise DI Subdevice Structures */
- s = &dev->subdevices[0];
- s->type = COMEDI_SUBD_DI;
- s->subdev_flags = SDF_READABLE;
- s->n_chan = 32;
- s->maxdata = 1;
- s->range_table = &range_digital;
- s->insn_bits = apci1032_di_insn_bits;
-
- /* Change-Of-State (COS) interrupt subdevice */
- s = &dev->subdevices[1];
- if (dev->irq) {
- 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_config = apci1032_cos_insn_config;
- s->insn_bits = apci1032_cos_insn_bits;
- s->len_chanlist = 1;
- s->do_cmdtest = apci1032_cos_cmdtest;
- s->do_cmd = apci1032_cos_cmd;
- s->cancel = apci1032_cos_cancel;
- } else {
- s->type = COMEDI_SUBD_UNUSED;
- }
-
- return 0;
-}
-
-static void apci1032_detach(struct comedi_device *dev)
-{
- if (dev->iobase)
- apci1032_reset(dev);
- comedi_pci_detach(dev);
-}
-
-static struct comedi_driver apci1032_driver = {
- .driver_name = "addi_apci_1032",
- .module = THIS_MODULE,
- .auto_attach = apci1032_auto_attach,
- .detach = apci1032_detach,
-};
-
-static int apci1032_pci_probe(struct pci_dev *dev,
- const struct pci_device_id *id)
-{
- return comedi_pci_auto_config(dev, &apci1032_driver, id->driver_data);
-}
-
-static const struct pci_device_id apci1032_pci_table[] = {
- { PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, 0x1003) },
- { 0 }
-};
-MODULE_DEVICE_TABLE(pci, apci1032_pci_table);
-
-static struct pci_driver apci1032_pci_driver = {
- .name = "addi_apci_1032",
- .id_table = apci1032_pci_table,
- .probe = apci1032_pci_probe,
- .remove = comedi_pci_auto_unconfig,
-};
-module_comedi_pci_driver(apci1032_driver, apci1032_pci_driver);
-
-MODULE_AUTHOR("Comedi https://www.comedi.org");
-MODULE_DESCRIPTION("ADDI-DATA APCI-1032, 32 channel DI boards");
-MODULE_LICENSE("GPL");
generated by cgit (git 2.34.1) at 2024-06-13 11:35:11 +0000