root/drivers/staging/comedi/drivers/addi_apci_2200.c

DEFINITIONS

1. apci2200_di_insn_bits
2. apci2200_do_insn_bits
3. apci2200_reset
4. apci2200_auto_attach
5. apci2200_detach
6. apci2200_pci_probe

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * addi_apci_2200.c
   4  * Copyright (C) 2004,2005  ADDI-DATA GmbH for the source code of this module.
   5  * Project manager: Eric Stolz
   6  *
   7  *      ADDI-DATA GmbH
   8  *      Dieselstrasse 3
   9  *      D-77833 Ottersweier
  10  *      Tel: +19(0)7223/9493-0
  11  *      Fax: +49(0)7223/9493-92
  12  *      http://www.addi-data.com
  13  *      info@addi-data.com
  14  */
  15 
  16 #include <linux/module.h>
  17 
  18 #include "../comedi_pci.h"
  19 #include "addi_watchdog.h"
  20 
  21 /*
  22  * I/O Register Map
  23  */
  24 #define APCI2200_DI_REG                 0x00
  25 #define APCI2200_DO_REG                 0x04
  26 #define APCI2200_WDOG_REG               0x08
  27 
  28 static int apci2200_di_insn_bits(struct comedi_device *dev,
  29                                  struct comedi_subdevice *s,
  30                                  struct comedi_insn *insn,
  31                                  unsigned int *data)
  32 {
  33         data[1] = inw(dev->iobase + APCI2200_DI_REG);
  34 
  35         return insn->n;
  36 }
  37 
  38 static int apci2200_do_insn_bits(struct comedi_device *dev,
  39                                  struct comedi_subdevice *s,
  40                                  struct comedi_insn *insn,
  41                                  unsigned int *data)
  42 {
  43         s->state = inw(dev->iobase + APCI2200_DO_REG);
  44 
  45         if (comedi_dio_update_state(s, data))
  46                 outw(s->state, dev->iobase + APCI2200_DO_REG);
  47 
  48         data[1] = s->state;
  49 
  50         return insn->n;
  51 }
  52 
  53 static int apci2200_reset(struct comedi_device *dev)
  54 {
  55         outw(0x0, dev->iobase + APCI2200_DO_REG);
  56 
  57         addi_watchdog_reset(dev->iobase + APCI2200_WDOG_REG);
  58 
  59         return 0;
  60 }
  61 
  62 static int apci2200_auto_attach(struct comedi_device *dev,
  63                                 unsigned long context_unused)
  64 {
  65         struct pci_dev *pcidev = comedi_to_pci_dev(dev);
  66         struct comedi_subdevice *s;
  67         int ret;
  68 
  69         ret = comedi_pci_enable(dev);
  70         if (ret)
  71                 return ret;
  72 
  73         dev->iobase = pci_resource_start(pcidev, 1);
  74 
  75         ret = comedi_alloc_subdevices(dev, 3);
  76         if (ret)
  77                 return ret;
  78 
  79         /* Initialize the digital input subdevice */
  80         s = &dev->subdevices[0];
  81         s->type         = COMEDI_SUBD_DI;
  82         s->subdev_flags = SDF_READABLE;
  83         s->n_chan       = 8;
  84         s->maxdata      = 1;
  85         s->range_table  = &range_digital;
  86         s->insn_bits    = apci2200_di_insn_bits;
  87 
  88         /* Initialize the digital output subdevice */
  89         s = &dev->subdevices[1];
  90         s->type         = COMEDI_SUBD_DO;
  91         s->subdev_flags = SDF_WRITABLE;
  92         s->n_chan       = 16;
  93         s->maxdata      = 1;
  94         s->range_table  = &range_digital;
  95         s->insn_bits    = apci2200_do_insn_bits;
  96 
  97         /* Initialize the watchdog subdevice */
  98         s = &dev->subdevices[2];
  99         ret = addi_watchdog_init(s, dev->iobase + APCI2200_WDOG_REG);
 100         if (ret)
 101                 return ret;
 102 
 103         apci2200_reset(dev);
 104         return 0;
 105 }
 106 
 107 static void apci2200_detach(struct comedi_device *dev)
 108 {
 109         if (dev->iobase)
 110                 apci2200_reset(dev);
 111         comedi_pci_detach(dev);
 112 }
 113 
 114 static struct comedi_driver apci2200_driver = {
 115         .driver_name    = "addi_apci_2200",
 116         .module         = THIS_MODULE,
 117         .auto_attach    = apci2200_auto_attach,
 118         .detach         = apci2200_detach,
 119 };
 120 
 121 static int apci2200_pci_probe(struct pci_dev *dev,
 122                               const struct pci_device_id *id)
 123 {
 124         return comedi_pci_auto_config(dev, &apci2200_driver, id->driver_data);
 125 }
 126 
 127 static const struct pci_device_id apci2200_pci_table[] = {
 128         { PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, 0x1005) },
 129         { 0 }
 130 };
 131 MODULE_DEVICE_TABLE(pci, apci2200_pci_table);
 132 
 133 static struct pci_driver apci2200_pci_driver = {
 134         .name           = "addi_apci_2200",
 135         .id_table       = apci2200_pci_table,
 136         .probe          = apci2200_pci_probe,
 137         .remove         = comedi_pci_auto_unconfig,
 138 };
 139 module_comedi_pci_driver(apci2200_driver, apci2200_pci_driver);
 140 
 141 MODULE_DESCRIPTION("ADDI-DATA APCI-2200 Relay board, optically isolated");
 142 MODULE_AUTHOR("Comedi http://www.comedi.org");
 143 MODULE_LICENSE("GPL");