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

   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 *  das08_pci.c
   4 *  comedi driver for DAS08 PCI boards
   5 *
   6 *  COMEDI - Linux Control and Measurement Device Interface
   7 *  Copyright (C) 2000 David A. Schleef <ds@schleef.org>
   8 *  Copyright (C) 2001,2002,2003 Frank Mori Hess <fmhess@users.sourceforge.net>
   9 *  Copyright (C) 2004 Salvador E. Tropea <set@users.sf.net> <set@ieee.org>
  10 */
  11
  12/*
  13 * Driver: das08_pci
  14 * Description: DAS-08 PCI compatible boards
  15 * Devices: [ComputerBoards] PCI-DAS08 (pci-das08)
  16 * Author: Warren Jasper, ds, Frank Hess
  17 * Updated: Fri, 31 Aug 2012 19:19:06 +0100
  18 * Status: works
  19 *
  20 * This is the PCI-specific support split off from the das08 driver.
  21 *
  22 * Configuration Options: not applicable, uses PCI auto config
  23 */
  24
  25#include <linux/module.h>
  26
  27#include "../comedi_pci.h"
  28
  29#include "das08.h"
  30
  31static const struct das08_board_struct das08_pci_boards[] = {
  32        {
  33                .name           = "pci-das08",
  34                .ai_nbits       = 12,
  35                .ai_pg          = das08_bipolar5,
  36                .ai_encoding    = das08_encode12,
  37                .di_nchan       = 3,
  38                .do_nchan       = 4,
  39                .i8254_offset   = 4,
  40                .iosize         = 8,
  41        },
  42};
  43
  44static int das08_pci_auto_attach(struct comedi_device *dev,
  45                                 unsigned long context_unused)
  46{
  47        struct pci_dev *pdev = comedi_to_pci_dev(dev);
  48        struct das08_private_struct *devpriv;
  49        int ret;
  50
  51        devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
  52        if (!devpriv)
  53                return -ENOMEM;
  54
  55        /* The das08 driver needs the board_ptr */
  56        dev->board_ptr = &das08_pci_boards[0];
  57
  58        ret = comedi_pci_enable(dev);
  59        if (ret)
  60                return ret;
  61        dev->iobase = pci_resource_start(pdev, 2);
  62
  63        return das08_common_attach(dev, dev->iobase);
  64}
  65
  66static struct comedi_driver das08_pci_comedi_driver = {
  67        .driver_name    = "pci-das08",
  68        .module         = THIS_MODULE,
  69        .auto_attach    = das08_pci_auto_attach,
  70        .detach         = comedi_pci_detach,
  71};
  72
  73static int das08_pci_probe(struct pci_dev *dev,
  74                           const struct pci_device_id *id)
  75{
  76        return comedi_pci_auto_config(dev, &das08_pci_comedi_driver,
  77                                      id->driver_data);
  78}
  79
  80static const struct pci_device_id das08_pci_table[] = {
  81        { PCI_DEVICE(PCI_VENDOR_ID_CB, 0x0029) },
  82        { 0 }
  83};
  84MODULE_DEVICE_TABLE(pci, das08_pci_table);
  85
  86static struct pci_driver das08_pci_driver = {
  87        .name           = "pci-das08",
  88        .id_table       = das08_pci_table,
  89        .probe          = das08_pci_probe,
  90        .remove         = comedi_pci_auto_unconfig,
  91};
  92module_comedi_pci_driver(das08_pci_comedi_driver, das08_pci_driver);
  93
  94MODULE_AUTHOR("Comedi http://www.comedi.org");
  95MODULE_DESCRIPTION("Comedi low-level driver");
  96MODULE_LICENSE("GPL");
  97