contec_pci_dio.c revision f0bd6d357527ed40c84e75f1f3137ea944f179db
1/* 2 comedi/drivers/contec_pci_dio.c 3 4 COMEDI - Linux Control and Measurement Device Interface 5 Copyright (C) 2000 David A. Schleef <ds@schleef.org> 6 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 2 of the License, or 10 (at your option) any later version. 11 12 This program is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this program; if not, write to the Free Software 19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 20 21*/ 22/* 23Driver: contec_pci_dio 24Description: Contec PIO1616L digital I/O board 25Devices: [Contec] PIO1616L (contec_pci_dio) 26Author: Stefano Rivoir <s.rivoir@gts.it> 27Updated: Wed, 27 Jun 2007 13:00:06 +0100 28Status: works 29 30Configuration Options: 31 [0] - PCI bus of device (optional) 32 [1] - PCI slot of device (optional) 33 If bus/slot is not specified, the first supported 34 PCI device found will be used. 35*/ 36 37#include "../comedidev.h" 38 39enum contec_model { 40 PIO1616L = 0, 41}; 42 43struct contec_board { 44 const char *name; 45 int model; 46 int in_ports; 47 int out_ports; 48 int in_offs; 49 int out_offs; 50 int out_boffs; 51}; 52static const struct contec_board contec_boards[] = { 53 {"PIO1616L", PIO1616L, 16, 16, 0, 2, 10}, 54}; 55 56#define PCI_DEVICE_ID_PIO1616L 0x8172 57 58#define thisboard ((const struct contec_board *)dev->board_ptr) 59 60struct contec_private { 61 int data; 62 63 struct pci_dev *pci_dev; 64 65}; 66 67#define devpriv ((struct contec_private *)dev->private) 68 69static int contec_do_insn_bits(struct comedi_device *dev, 70 struct comedi_subdevice *s, 71 struct comedi_insn *insn, unsigned int *data) 72{ 73 74 dev_dbg(dev->class_dev, "contec_do_insn_bits called\n"); 75 dev_dbg(dev->class_dev, "data: %d %d\n", data[0], data[1]); 76 77 if (data[0]) { 78 s->state &= ~data[0]; 79 s->state |= data[0] & data[1]; 80 dev_dbg(dev->class_dev, "out: %d on %lx\n", s->state, 81 dev->iobase + thisboard->out_offs); 82 outw(s->state, dev->iobase + thisboard->out_offs); 83 } 84 return insn->n; 85} 86 87static int contec_di_insn_bits(struct comedi_device *dev, 88 struct comedi_subdevice *s, 89 struct comedi_insn *insn, unsigned int *data) 90{ 91 92 dev_dbg(dev->class_dev, "contec_di_insn_bits called\n"); 93 dev_dbg(dev->class_dev, "data: %d %d\n", data[0], data[1]); 94 95 data[1] = inw(dev->iobase + thisboard->in_offs); 96 97 return insn->n; 98} 99 100static struct pci_dev *contec_find_pci_dev(struct comedi_device *dev, 101 struct comedi_devconfig *it) 102{ 103 struct pci_dev *pcidev = NULL; 104 105 for_each_pci_dev(pcidev) { 106 if (pcidev->vendor == PCI_VENDOR_ID_CONTEC && 107 pcidev->device == PCI_DEVICE_ID_PIO1616L) { 108 if (it->options[0] || it->options[1]) { 109 /* Check bus and slot. */ 110 if (it->options[0] != pcidev->bus->number || 111 it->options[1] != PCI_SLOT(pcidev->devfn)) { 112 continue; 113 } 114 } 115 dev->board_ptr = contec_boards + 0; 116 return pcidev; 117 } 118 } 119 printk("card not present!\n"); 120 return NULL; 121} 122 123static int contec_attach(struct comedi_device *dev, struct comedi_devconfig *it) 124{ 125 struct pci_dev *pcidev; 126 struct comedi_subdevice *s; 127 int ret; 128 129 printk("comedi%d: contec: ", dev->minor); 130 131 dev->board_name = thisboard->name; 132 133 if (alloc_private(dev, sizeof(struct contec_private)) < 0) 134 return -ENOMEM; 135 136 ret = comedi_alloc_subdevices(dev, 2); 137 if (ret) 138 return ret; 139 140 pcidev = contec_find_pci_dev(dev, it); 141 if (!pcidev) 142 return -EIO; 143 devpriv->pci_dev = pcidev; 144 145 if (comedi_pci_enable(pcidev, "contec_pci_dio")) { 146 printk("error enabling PCI device and request regions!\n"); 147 return -EIO; 148 } 149 dev->iobase = pci_resource_start(pcidev, 0); 150 printk(" base addr %lx ", dev->iobase); 151 152 s = dev->subdevices + 0; 153 154 s->type = COMEDI_SUBD_DI; 155 s->subdev_flags = SDF_READABLE; 156 s->n_chan = 16; 157 s->maxdata = 1; 158 s->range_table = &range_digital; 159 s->insn_bits = contec_di_insn_bits; 160 161 s = dev->subdevices + 1; 162 s->type = COMEDI_SUBD_DO; 163 s->subdev_flags = SDF_WRITABLE; 164 s->n_chan = 16; 165 s->maxdata = 1; 166 s->range_table = &range_digital; 167 s->insn_bits = contec_do_insn_bits; 168 169 printk("attached\n"); 170 171 return 1; 172} 173 174static void contec_detach(struct comedi_device *dev) 175{ 176 if (devpriv && devpriv->pci_dev) { 177 if (dev->iobase) 178 comedi_pci_disable(devpriv->pci_dev); 179 pci_dev_put(devpriv->pci_dev); 180 } 181} 182 183static struct comedi_driver contec_pci_dio_driver = { 184 .driver_name = "contec_pci_dio", 185 .module = THIS_MODULE, 186 .attach = contec_attach, 187 .detach = contec_detach, 188}; 189 190static int __devinit contec_pci_dio_pci_probe(struct pci_dev *dev, 191 const struct pci_device_id *ent) 192{ 193 return comedi_pci_auto_config(dev, &contec_pci_dio_driver); 194} 195 196static void __devexit contec_pci_dio_pci_remove(struct pci_dev *dev) 197{ 198 comedi_pci_auto_unconfig(dev); 199} 200 201static DEFINE_PCI_DEVICE_TABLE(contec_pci_dio_pci_table) = { 202 { PCI_DEVICE(PCI_VENDOR_ID_CONTEC, PCI_DEVICE_ID_PIO1616L), 203 .driver_data = PIO1616L }, 204 { 0 } 205}; 206MODULE_DEVICE_TABLE(pci, contec_pci_dio_pci_table); 207 208static struct pci_driver contec_pci_dio_pci_driver = { 209 .name = "contec_pci_dio", 210 .id_table = contec_pci_dio_pci_table, 211 .probe = contec_pci_dio_pci_probe, 212 .remove = __devexit_p(contec_pci_dio_pci_remove), 213}; 214module_comedi_pci_driver(contec_pci_dio_driver, contec_pci_dio_pci_driver); 215 216MODULE_AUTHOR("Comedi http://www.comedi.org"); 217MODULE_DESCRIPTION("Comedi low-level driver"); 218MODULE_LICENSE("GPL"); 219