drivers/staging/comedi/drivers/contec_pci_dio.c

   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 /*
  23 Driver: contec_pci_dio
  24 Description: Contec PIO1616L digital I/O board
  25 Devices: [Contec] PIO1616L (contec_pci_dio)
  26 Author: Stefano Rivoir <s.rivoir@gts.it>
  27 Updated: Wed, 27 Jun 2007 13:00:06 +0100
  28 Status: works
  29
  30 Configuration 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
  39 #include "comedi_pci.h"
  40
  41 typedef enum contec_model {
  42         PIO1616L = 0,
  43 } contec_model;
  44
  45 typedef struct contec_board {
  46         const char *name;
  47         int model;
  48         int in_ports;
  49         int out_ports;
  50         int in_offs;
  51         int out_offs;
  52         int out_boffs;
  53 } contec_board;
  54 static const contec_board contec_boards[] = {
  55         {"PIO1616L", PIO1616L, 16, 16, 0, 2, 10},
  56 };
  57
  58 #define PCI_DEVICE_ID_PIO1616L 0x8172
  59 static DEFINE_PCI_DEVICE_TABLE(contec_pci_table) = {
  60         {PCI_VENDOR_ID_CONTEC, PCI_DEVICE_ID_PIO1616L, PCI_ANY_ID, PCI_ANY_ID,
  61                 0, 0, PIO1616L},
  62         {0}
  63 };
  64
  65 MODULE_DEVICE_TABLE(pci, contec_pci_table);
  66
  67 #define thisboard ((const contec_board *)dev->board_ptr)
  68
  69 typedef struct {
  70         int data;
  71
  72         struct pci_dev *pci_dev;
  73
  74 } contec_private;
  75
  76 #define devpriv ((contec_private *)dev->private)
  77
  78 static int contec_attach(comedi_device * dev, comedi_devconfig * it);
  79 static int contec_detach(comedi_device * dev);
  80 static comedi_driver driver_contec = {
  81       driver_name:"contec_pci_dio",
  82       module:THIS_MODULE,
  83       attach:contec_attach,
  84       detach:contec_detach,
  85 };
  86
  87 /* Classic digital IO */
  88 static int contec_di_insn_bits(comedi_device * dev, comedi_subdevice * s,
  89         comedi_insn * insn, unsigned int * data);
  90 static int contec_do_insn_bits(comedi_device * dev, comedi_subdevice * s,
  91         comedi_insn * insn, unsigned int * data);
  92
  93 #if 0
  94 static int contec_cmdtest(comedi_device * dev, comedi_subdevice * s,
  95         comedi_cmd * cmd);
  96
  97 static int contec_ns_to_timer(unsigned int *ns, int round);
  98 #endif
  99
 100 static int contec_attach(comedi_device * dev, comedi_devconfig * it)
 101 {
 102         struct pci_dev *pcidev;
 103         comedi_subdevice *s;
 104
 105         printk("comedi%d: contec: ", dev->minor);
 106
 107         dev->board_name = thisboard->name;
 108
 109         if (alloc_private(dev, sizeof(contec_private)) < 0)
 110                 return -ENOMEM;
 111
 112         if (alloc_subdevices(dev, 2) < 0)
 113                 return -ENOMEM;
 114
 115         for (pcidev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, NULL);
 116                 pcidev != NULL;
 117                 pcidev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, pcidev)) {
 118
 119                 if (pcidev->vendor == PCI_VENDOR_ID_CONTEC &&
 120                         pcidev->device == PCI_DEVICE_ID_PIO1616L) {
 121                         if (it->options[0] || it->options[1]) {
 122                                 /* Check bus and slot. */
 123                                 if (it->options[0] != pcidev->bus->number ||
 124                                         it->options[1] !=
 125                                         PCI_SLOT(pcidev->devfn)) {
 126                                         continue;
 127                                 }
 128                         }
 129                         devpriv->pci_dev = pcidev;
 130                         if (comedi_pci_enable(pcidev, "contec_pci_dio")) {
 131                                 printk("error enabling PCI device and request regions!\n");
 132                                 return -EIO;
 133                         }
 134                         dev->iobase = pci_resource_start(pcidev, 0);
 135                         printk(" base addr %lx ", dev->iobase);
 136
 137                         dev->board_ptr = contec_boards + 0;
 138
 139                         s = dev->subdevices + 0;
 140
 141                         s->type = COMEDI_SUBD_DI;
 142                         s->subdev_flags = SDF_READABLE;
 143                         s->n_chan = 16;
 144                         s->maxdata = 1;
 145                         s->range_table = &range_digital;
 146                         s->insn_bits = contec_di_insn_bits;
 147
 148                         s = dev->subdevices + 1;
 149                         s->type = COMEDI_SUBD_DO;
 150                         s->subdev_flags = SDF_WRITABLE;
 151                         s->n_chan = 16;
 152                         s->maxdata = 1;
 153                         s->range_table = &range_digital;
 154                         s->insn_bits = contec_do_insn_bits;
 155
 156                         printk("attached\n");
 157
 158                         return 1;
 159                 }
 160         }
 161
 162         printk("card not present!\n");
 163
 164         return -EIO;
 165 }
 166
 167 static int contec_detach(comedi_device * dev)
 168 {
 169         printk("comedi%d: contec: remove\n", dev->minor);
 170
 171         if (devpriv && devpriv->pci_dev) {
 172                 if (dev->iobase) {
 173                         comedi_pci_disable(devpriv->pci_dev);
 174                 }
 175                 pci_dev_put(devpriv->pci_dev);
 176         }
 177
 178         return 0;
 179 }
 180
 181 #if 0
 182 static int contec_cmdtest(comedi_device * dev, comedi_subdevice * s,
 183         comedi_cmd * cmd)
 184 {
 185         printk("contec_cmdtest called\n");
 186         return 0;
 187 }
 188
 189 static int contec_ns_to_timer(unsigned int *ns, int round)
 190 {
 191         return *ns;
 192 }
 193 #endif
 194
 195 static int contec_do_insn_bits(comedi_device * dev, comedi_subdevice * s,
 196         comedi_insn * insn, unsigned int * data)
 197 {
 198
 199         printk("contec_do_insn_bits called\n");
 200         printk(" data: %d %d\n", data[0], data[1]);
 201
 202         if (insn->n != 2)
 203                 return -EINVAL;
 204
 205         if (data[0]) {
 206                 s->state &= ~data[0];
 207                 s->state |= data[0] & data[1];
 208                 rt_printk("  out: %d on %lx\n", s->state,
 209                         dev->iobase + thisboard->out_offs);
 210                 outw(s->state, dev->iobase + thisboard->out_offs);
 211         }
 212         return 2;
 213 }
 214
 215 static int contec_di_insn_bits(comedi_device * dev, comedi_subdevice * s,
 216         comedi_insn * insn, unsigned int * data)
 217 {
 218
 219         rt_printk("contec_di_insn_bits called\n");
 220         rt_printk(" data: %d %d\n", data[0], data[1]);
 221
 222         if (insn->n != 2)
 223                 return -EINVAL;
 224
 225         data[1] = inw(dev->iobase + thisboard->in_offs);
 226
 227         return 2;
 228 }
 229
 230 COMEDI_PCI_INITCLEANUP(driver_contec, contec_pci_table);