LXR linux/drivers/staging/comedi/drivers/das08

   1/*
   2 *  das08_pci.c
   3 *  comedi driver for DAS08 PCI boards
   4 *
   5 *  COMEDI - Linux Control and Measurement Device Interface
   6 *  Copyright (C) 2000 David A. Schleef <ds@schleef.org>
   7 *  Copyright (C) 2001,2002,2003 Frank Mori Hess <fmhess@users.sourceforge.net>
   8 *  Copyright (C) 2004 Salvador E. Tropea <set@users.sf.net> <set@ieee.org>
   9 *
  10 *  This program is free software; you can redistribute it and/or modify
  11 *  it under the terms of the GNU General Public License as published by
  12 *  the Free Software Foundation; either version 2 of the License, or
  13 *  (at your option) any later version.
  14 *
  15 *  This program is distributed in the hope that it will be useful,
  16 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 *  GNU General Public License for more details.
  19 */
  20
  21/*
  22 * Driver: das08_pci
  23 * Description: DAS-08 PCI compatible boards
  24 * Devices: (ComputerBoards) PCI-DAS08 [pci-das08]
  25 * Author: Warren Jasper, ds, Frank Hess
  26 * Updated: Fri, 31 Aug 2012 19:19:06 +0100
  27 * Status: works
  28 *
  29 * This is the PCI-specific support split off from the das08 driver.
  30 *
  31 * Configuration Options: not applicable, uses PCI auto config
  32 */
  33
  34#include <linux/pci.h>
  35
  36#include "../comedidev.h"
  37
  38#include "das08.h"
  39
  40#define PCI_DEVICE_ID_PCIDAS08          0x0029
  41
  42static const struct das08_board_struct das08_pci_boards[] = {
  43        {
  44                .name           = "pci-das08",
  45                .ai_nbits       = 12,
  46                .ai_pg          = das08_bipolar5,
  47                .ai_encoding    = das08_encode12,
  48                .di_nchan       = 3,
  49                .do_nchan       = 4,
  50                .i8254_offset   = 4,
  51                .iosize         = 8,
  52        },
  53};
  54
  55static int das08_pci_auto_attach(struct comedi_device *dev,
  56                                 unsigned long context_unused)
  57{
  58        struct pci_dev *pdev = comedi_to_pci_dev(dev);
  59        struct das08_private_struct *devpriv;
  60        int ret;
  61
  62        devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
  63        if (!devpriv)
  64                return -ENOMEM;
  65        dev->private = devpriv;
  66
  67        /* The das08 driver needs the board_ptr */
  68        dev->board_ptr = &das08_pci_boards[0];
  69
  70        ret = comedi_pci_enable(dev);
  71        if (ret)
  72                return ret;
  73        dev->iobase = pci_resource_start(pdev, 2);
  74
  75        return das08_common_attach(dev, dev->iobase);
  76}
  77
  78static struct comedi_driver das08_pci_comedi_driver = {
  79        .driver_name    = "pci-das08",
  80        .module         = THIS_MODULE,
  81        .auto_attach    = das08_pci_auto_attach,
  82        .detach         = comedi_pci_disable,
  83};
  84
  85static int das08_pci_probe(struct pci_dev *dev,
  86                           const struct pci_device_id *id)
  87{
  88        return comedi_pci_auto_config(dev, &das08_pci_comedi_driver,
  89                                      id->driver_data);
  90}
  91
  92static DEFINE_PCI_DEVICE_TABLE(das08_pci_table) = {
  93        { PCI_DEVICE(PCI_VENDOR_ID_CB, PCI_DEVICE_ID_PCIDAS08) },
  94        { 0 }
  95};
  96MODULE_DEVICE_TABLE(pci, das08_pci_table);
  97
  98static struct pci_driver das08_pci_driver = {
  99        .name           = "pci-das08",
 100        .id_table       = das08_pci_table,
 101        .probe          = das08_pci_probe,
 102        .remove         = comedi_pci_auto_unconfig,
 103};
 104module_comedi_pci_driver(das08_pci_comedi_driver, das08_pci_driver);
 105
 106MODULE_AUTHOR("Comedi http://www.comedi.org");
 107MODULE_DESCRIPTION("Comedi low-level driver");
 108MODULE_LICENSE("GPL");
 109