1/* 2 * addi_apci_2200.c 3 * Copyright (C) 2004,2005 ADDI-DATA GmbH for the source code of this module. 4 * Project manager: Eric Stolz 5 * 6 * ADDI-DATA GmbH 7 * Dieselstrasse 3 8 * D-77833 Ottersweier 9 * Tel: +19(0)7223/9493-0 10 * Fax: +49(0)7223/9493-92 11 * http://www.addi-data.com 12 * info@addi-data.com 13 * 14 * This program is free software; you can redistribute it and/or modify it 15 * under the terms of the GNU General Public License as published by the 16 * Free Software Foundation; either version 2 of the License, or (at your 17 * option) any later version. 18 * 19 * This program is distributed in the hope that it will be useful, but WITHOUT 20 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 21 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 22 * more details. 23 */ 24 25#include <linux/module.h> 26#include <linux/pci.h> 27 28#include "../comedidev.h" 29#include "addi_watchdog.h" 30 31/* 32 * I/O Register Map 33 */ 34#define APCI2200_DI_REG 0x00 35#define APCI2200_DO_REG 0x04 36#define APCI2200_WDOG_REG 0x08 37 38static int apci2200_di_insn_bits(struct comedi_device *dev, 39 struct comedi_subdevice *s, 40 struct comedi_insn *insn, 41 unsigned int *data) 42{ 43 data[1] = inw(dev->iobase + APCI2200_DI_REG); 44 45 return insn->n; 46} 47 48static int apci2200_do_insn_bits(struct comedi_device *dev, 49 struct comedi_subdevice *s, 50 struct comedi_insn *insn, 51 unsigned int *data) 52{ 53 s->state = inw(dev->iobase + APCI2200_DO_REG); 54 55 if (comedi_dio_update_state(s, data)) 56 outw(s->state, dev->iobase + APCI2200_DO_REG); 57 58 data[1] = s->state; 59 60 return insn->n; 61} 62 63static int apci2200_reset(struct comedi_device *dev) 64{ 65 outw(0x0, dev->iobase + APCI2200_DO_REG); 66 67 addi_watchdog_reset(dev->iobase + APCI2200_WDOG_REG); 68 69 return 0; 70} 71 72static int apci2200_auto_attach(struct comedi_device *dev, 73 unsigned long context_unused) 74{ 75 struct pci_dev *pcidev = comedi_to_pci_dev(dev); 76 struct comedi_subdevice *s; 77 int ret; 78 79 ret = comedi_pci_enable(dev); 80 if (ret) 81 return ret; 82 83 dev->iobase = pci_resource_start(pcidev, 1); 84 85 ret = comedi_alloc_subdevices(dev, 3); 86 if (ret) 87 return ret; 88 89 /* Initialize the digital input subdevice */ 90 s = &dev->subdevices[0]; 91 s->type = COMEDI_SUBD_DI; 92 s->subdev_flags = SDF_READABLE; 93 s->n_chan = 8; 94 s->maxdata = 1; 95 s->range_table = &range_digital; 96 s->insn_bits = apci2200_di_insn_bits; 97 98 /* Initialize the digital output subdevice */ 99 s = &dev->subdevices[1]; 100 s->type = COMEDI_SUBD_DO; 101 s->subdev_flags = SDF_WRITEABLE; 102 s->n_chan = 16; 103 s->maxdata = 1; 104 s->range_table = &range_digital; 105 s->insn_bits = apci2200_do_insn_bits; 106 107 /* Initialize the watchdog subdevice */ 108 s = &dev->subdevices[2]; 109 ret = addi_watchdog_init(s, dev->iobase + APCI2200_WDOG_REG); 110 if (ret) 111 return ret; 112 113 apci2200_reset(dev); 114 return 0; 115} 116 117static void apci2200_detach(struct comedi_device *dev) 118{ 119 if (dev->iobase) 120 apci2200_reset(dev); 121 comedi_pci_detach(dev); 122} 123 124static struct comedi_driver apci2200_driver = { 125 .driver_name = "addi_apci_2200", 126 .module = THIS_MODULE, 127 .auto_attach = apci2200_auto_attach, 128 .detach = apci2200_detach, 129}; 130 131static int apci2200_pci_probe(struct pci_dev *dev, 132 const struct pci_device_id *id) 133{ 134 return comedi_pci_auto_config(dev, &apci2200_driver, id->driver_data); 135} 136 137static const struct pci_device_id apci2200_pci_table[] = { 138 { PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, 0x1005) }, 139 { 0 } 140}; 141MODULE_DEVICE_TABLE(pci, apci2200_pci_table); 142 143static struct pci_driver apci2200_pci_driver = { 144 .name = "addi_apci_2200", 145 .id_table = apci2200_pci_table, 146 .probe = apci2200_pci_probe, 147 .remove = comedi_pci_auto_unconfig, 148}; 149module_comedi_pci_driver(apci2200_driver, apci2200_pci_driver); 150 151MODULE_DESCRIPTION("ADDI-DATA APCI-2200 Relay board, optically isolated"); 152MODULE_AUTHOR("Comedi http://www.comedi.org"); 153MODULE_LICENSE("GPL"); 154