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

   1/*
   2    comedi/drivers/das08_cs.c
   3    DAS08 driver
   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
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 2 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program; if not, write to the Free Software
  21    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  22
  23    PCMCIA support code for this driver is adapted from the dummy_cs.c
  24    driver of the Linux PCMCIA Card Services package.
  25
  26    The initial developer of the original code is David A. Hinds
  27    <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
  28    are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
  29
  30*****************************************************************
  31
  32*/
  33/*
  34Driver: das08_cs
  35Description: DAS-08 PCMCIA boards
  36Author: Warren Jasper, ds, Frank Hess
  37Devices: [ComputerBoards] PCM-DAS08 (pcm-das08)
  38Status: works
  39
  40This is the PCMCIA-specific support split off from the
  41das08 driver.
  42
  43Options (for pcm-das08):
  44        NONE
  45
  46Command support does not exist, but could be added for this board.
  47*/
  48
  49#include <linux/delay.h>
  50#include <linux/slab.h>
  51
  52#include "../comedidev.h"
  53
  54#include <pcmcia/cistpl.h>
  55#include <pcmcia/ds.h>
  56
  57#include "das08.h"
  58
  59static const struct das08_board_struct das08_cs_boards[] = {
  60        {
  61                .name           = "pcm-das08",
  62                .id             = 0x0,  /*  XXX */
  63                .ai_nbits       = 12,
  64                .ai_pg          = das08_bipolar5,
  65                .ai_encoding    = das08_pcm_encode12,
  66                .di_nchan       = 3,
  67                .do_nchan       = 3,
  68                .iosize         = 16,
  69        },
  70};
  71
  72static int das08_cs_auto_attach(struct comedi_device *dev,
  73                                unsigned long context)
  74{
  75        struct pcmcia_device *link = comedi_to_pcmcia_dev(dev);
  76        struct das08_private_struct *devpriv;
  77        unsigned long iobase;
  78        int ret;
  79
  80        /* The das08 driver needs the board_ptr */
  81        dev->board_ptr = &das08_cs_boards[0];
  82
  83        link->config_flags |= CONF_AUTO_SET_IO;
  84        ret = comedi_pcmcia_enable(dev, NULL);
  85        if (ret)
  86                return ret;
  87        iobase = link->resource[0]->start;
  88
  89        devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
  90        if (!devpriv)
  91                return -ENOMEM;
  92        dev->private = devpriv;
  93
  94        return das08_common_attach(dev, iobase);
  95}
  96
  97static void das08_cs_detach(struct comedi_device *dev)
  98{
  99        das08_common_detach(dev);
 100        comedi_pcmcia_disable(dev);
 101}
 102
 103static struct comedi_driver driver_das08_cs = {
 104        .driver_name    = "das08_cs",
 105        .module         = THIS_MODULE,
 106        .auto_attach    = das08_cs_auto_attach,
 107        .detach         = das08_cs_detach,
 108};
 109
 110static int das08_pcmcia_attach(struct pcmcia_device *link)
 111{
 112        return comedi_pcmcia_auto_config(link, &driver_das08_cs);
 113}
 114
 115static const struct pcmcia_device_id das08_cs_id_table[] = {
 116        PCMCIA_DEVICE_MANF_CARD(0x01c5, 0x4001),
 117        PCMCIA_DEVICE_NULL
 118};
 119MODULE_DEVICE_TABLE(pcmcia, das08_cs_id_table);
 120
 121static struct pcmcia_driver das08_cs_driver = {
 122        .name           = "pcm-das08",
 123        .owner          = THIS_MODULE,
 124        .id_table       = das08_cs_id_table,
 125        .probe          = das08_pcmcia_attach,
 126        .remove         = comedi_pcmcia_auto_unconfig,
 127};
 128module_comedi_pcmcia_driver(driver_das08_cs, das08_cs_driver);
 129
 130MODULE_AUTHOR("David A. Schleef <ds@schleef.org>, "
 131              "Frank Mori Hess <fmhess@users.sourceforge.net>");
 132MODULE_DESCRIPTION("Comedi driver for ComputerBoards DAS-08 PCMCIA boards");
 133MODULE_LICENSE("GPL");
 134