drivers/staging/comedi/drivers/ni_labpc_cs.c

   1 /*
   2     comedi/drivers/ni_labpc_cs.c
   3     Driver for National Instruments daqcard-1200 boards
   4     Copyright (C) 2001, 2002, 2003 Frank Mori Hess <fmhess@users.sourceforge.net>
   5
   6     PCMCIA crap is adapted from dummy_cs.c 1.31 2001/08/24 12:13:13
   7     from the pcmcia package.
   8     The initial developer of the pcmcia dummy_cs.c code is David A. Hinds
   9     <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
  10     are Copyright (C) 1999 David A. Hinds.
  11
  12     This program is free software; you can redistribute it and/or modify
  13     it under the terms of the GNU General Public License as published by
  14     the Free Software Foundation; either version 2 of the License, or
  15     (at your option) any later version.
  16
  17     This program is distributed in the hope that it will be useful,
  18     but WITHOUT ANY WARRANTY; without even the implied warranty of
  19     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20     GNU General Public License for more details.
  21
  22     You should have received a copy of the GNU General Public License
  23     along with this program; if not, write to the Free Software
  24     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  25
  26 ************************************************************************
  27 */
  28 /*
  29 Driver: ni_labpc_cs
  30 Description: National Instruments Lab-PC (& compatibles)
  31 Author: Frank Mori Hess <fmhess@users.sourceforge.net>
  32 Devices: [National Instruments] DAQCard-1200 (daqcard-1200)
  33 Status: works
  34
  35 Thanks go to Fredrik Lingvall for much testing and perseverance in
  36 helping to debug daqcard-1200 support.
  37
  38 The 1200 series boards have onboard calibration dacs for correcting
  39 analog input/output offsets and gains.  The proper settings for these
  40 caldacs are stored on the board's eeprom.  To read the caldac values
  41 from the eeprom and store them into a file that can be then be used by
  42 comedilib, use the comedi_calibrate program.
  43
  44 Configuration options:
  45   none
  46
  47 The daqcard-1200 has quirky chanlist requirements
  48 when scanning multiple channels.  Multiple channel scan
  49 sequence must start at highest channel, then decrement down to
  50 channel 0.  Chanlists consisting of all one channel
  51 are also legal, and allow you to pace conversions in bursts.
  52
  53 */
  54
  55 /*
  56
  57 NI manuals:
  58 340988a (daqcard-1200)
  59
  60 */
  61
  62 #include "../comedidev.h"
  63
  64 #include <linux/delay.h>
  65 #include <linux/slab.h>
  66
  67 #include "8253.h"
  68 #include "8255.h"
  69 #include "comedi_fc.h"
  70 #include "ni_labpc.h"
  71
  72 #include <pcmcia/cistpl.h>
  73 #include <pcmcia/cisreg.h>
  74 #include <pcmcia/ds.h>
  75
  76 static const struct labpc_boardinfo labpc_cs_boards[] = {
  77         {
  78                 .name                   = "daqcard-1200",
  79                 .device_id              = 0x103,
  80                 .ai_speed               = 10000,
  81                 .register_layout        = labpc_1200_layout,
  82                 .has_ao                 = 1,
  83                 .ai_range_table         = &range_labpc_1200_ai,
  84                 .ai_range_code          = labpc_1200_ai_gain_bits,
  85         },
  86 };
  87
  88 static int labpc_auto_attach(struct comedi_device *dev,
  89                              unsigned long context)
  90 {
  91         struct pcmcia_device *link = comedi_to_pcmcia_dev(dev);
  92         struct labpc_private *devpriv;
  93         int ret;
  94
  95         /* The ni_labpc driver needs the board_ptr */
  96         dev->board_ptr = &labpc_cs_boards[0];
  97
  98         link->config_flags |= CONF_AUTO_SET_IO |
  99                               CONF_ENABLE_IRQ | CONF_ENABLE_PULSE_IRQ;
 100         ret = comedi_pcmcia_enable(dev, NULL);
 101         if (ret)
 102                 return ret;
 103         dev->iobase = link->resource[0]->start;
 104
 105         if (!link->irq)
 106                 return -EINVAL;
 107
 108         devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
 109         if (!devpriv)
 110                 return -ENOMEM;
 111         dev->private = devpriv;
 112
 113         return labpc_common_attach(dev, link->irq, IRQF_SHARED);
 114 }
 115
 116 static void labpc_detach(struct comedi_device *dev)
 117 {
 118         labpc_common_detach(dev);
 119         comedi_pcmcia_disable(dev);
 120 }
 121
 122 static struct comedi_driver driver_labpc_cs = {
 123         .driver_name    = "ni_labpc_cs",
 124         .module         = THIS_MODULE,
 125         .auto_attach    = labpc_auto_attach,
 126         .detach         = labpc_detach,
 127 };
 128
 129 static int labpc_cs_attach(struct pcmcia_device *link)
 130 {
 131         return comedi_pcmcia_auto_config(link, &driver_labpc_cs);
 132 }
 133
 134 static const struct pcmcia_device_id labpc_cs_ids[] = {
 135         PCMCIA_DEVICE_MANF_CARD(0x010b, 0x0103),        /* daqcard-1200 */
 136         PCMCIA_DEVICE_NULL
 137 };
 138 MODULE_DEVICE_TABLE(pcmcia, labpc_cs_ids);
 139
 140 static struct pcmcia_driver labpc_cs_driver = {
 141         .name           = "daqcard-1200",
 142         .owner          = THIS_MODULE,
 143         .id_table       = labpc_cs_ids,
 144         .probe          = labpc_cs_attach,
 145         .remove         = comedi_pcmcia_auto_unconfig,
 146 };
 147 module_comedi_pcmcia_driver(driver_labpc_cs, labpc_cs_driver);
 148
 149 MODULE_DESCRIPTION("Comedi driver for National Instruments Lab-PC");
 150 MODULE_AUTHOR("Frank Mori Hess <fmhess@users.sourceforge.net>");
 151 MODULE_LICENSE("GPL");