143 lines
3.3 KiB
C
143 lines
3.3 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* addi_apci_2200.c
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* Copyright (C) 2004,2005 ADDI-DATA GmbH for the source code of this module.
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* Project manager: Eric Stolz
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*
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* ADDI-DATA GmbH
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* Dieselstrasse 3
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* D-77833 Ottersweier
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* Tel: +19(0)7223/9493-0
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* Fax: +49(0)7223/9493-92
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* http://www.addi-data.com
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* info@addi-data.com
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*/
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#include <linux/module.h>
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#include <linux/comedi/comedi_pci.h>
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#include "addi_watchdog.h"
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/*
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* I/O Register Map
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*/
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#define APCI2200_DI_REG 0x00
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#define APCI2200_DO_REG 0x04
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#define APCI2200_WDOG_REG 0x08
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static int apci2200_di_insn_bits(struct comedi_device *dev,
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struct comedi_subdevice *s,
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struct comedi_insn *insn,
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unsigned int *data)
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{
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data[1] = inw(dev->iobase + APCI2200_DI_REG);
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return insn->n;
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}
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static int apci2200_do_insn_bits(struct comedi_device *dev,
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struct comedi_subdevice *s,
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struct comedi_insn *insn,
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unsigned int *data)
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{
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s->state = inw(dev->iobase + APCI2200_DO_REG);
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if (comedi_dio_update_state(s, data))
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outw(s->state, dev->iobase + APCI2200_DO_REG);
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data[1] = s->state;
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return insn->n;
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}
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static int apci2200_reset(struct comedi_device *dev)
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{
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outw(0x0, dev->iobase + APCI2200_DO_REG);
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addi_watchdog_reset(dev->iobase + APCI2200_WDOG_REG);
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return 0;
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}
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static int apci2200_auto_attach(struct comedi_device *dev,
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unsigned long context_unused)
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{
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struct pci_dev *pcidev = comedi_to_pci_dev(dev);
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struct comedi_subdevice *s;
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int ret;
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ret = comedi_pci_enable(dev);
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if (ret)
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return ret;
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dev->iobase = pci_resource_start(pcidev, 1);
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ret = comedi_alloc_subdevices(dev, 3);
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if (ret)
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return ret;
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/* Initialize the digital input subdevice */
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s = &dev->subdevices[0];
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s->type = COMEDI_SUBD_DI;
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s->subdev_flags = SDF_READABLE;
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s->n_chan = 8;
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s->maxdata = 1;
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s->range_table = &range_digital;
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s->insn_bits = apci2200_di_insn_bits;
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/* Initialize the digital output subdevice */
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s = &dev->subdevices[1];
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s->type = COMEDI_SUBD_DO;
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s->subdev_flags = SDF_WRITABLE;
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s->n_chan = 16;
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s->maxdata = 1;
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s->range_table = &range_digital;
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s->insn_bits = apci2200_do_insn_bits;
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/* Initialize the watchdog subdevice */
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s = &dev->subdevices[2];
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ret = addi_watchdog_init(s, dev->iobase + APCI2200_WDOG_REG);
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if (ret)
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return ret;
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apci2200_reset(dev);
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return 0;
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}
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static void apci2200_detach(struct comedi_device *dev)
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{
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if (dev->iobase)
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apci2200_reset(dev);
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comedi_pci_detach(dev);
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}
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static struct comedi_driver apci2200_driver = {
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.driver_name = "addi_apci_2200",
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.module = THIS_MODULE,
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.auto_attach = apci2200_auto_attach,
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.detach = apci2200_detach,
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};
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static int apci2200_pci_probe(struct pci_dev *dev,
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const struct pci_device_id *id)
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{
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return comedi_pci_auto_config(dev, &apci2200_driver, id->driver_data);
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}
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static const struct pci_device_id apci2200_pci_table[] = {
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{ PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, 0x1005) },
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{ 0 }
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};
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MODULE_DEVICE_TABLE(pci, apci2200_pci_table);
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static struct pci_driver apci2200_pci_driver = {
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.name = "addi_apci_2200",
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.id_table = apci2200_pci_table,
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.probe = apci2200_pci_probe,
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.remove = comedi_pci_auto_unconfig,
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};
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module_comedi_pci_driver(apci2200_driver, apci2200_pci_driver);
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MODULE_DESCRIPTION("ADDI-DATA APCI-2200 Relay board, optically isolated");
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MODULE_AUTHOR("Comedi https://www.comedi.org");
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MODULE_LICENSE("GPL");
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