LXR linux/drivers/pcmcia/sa1100

   1/*======================================================================
   2
   3    Device driver for the PCMCIA control functionality of StrongARM
   4    SA-1100 microprocessors.
   5
   6    The contents of this file are subject to the Mozilla Public
   7    License Version 1.1 (the "License"); you may not use this file
   8    except in compliance with the License. You may obtain a copy of
   9    the License at http://www.mozilla.org/MPL/
  10
  11    Software distributed under the License is distributed on an "AS
  12    IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
  13    implied. See the License for the specific language governing
  14    rights and limitations under the License.
  15
  16    The initial developer of the original code is John G. Dorsey
  17    <john+@cs.cmu.edu>.  Portions created by John G. Dorsey are
  18    Copyright (C) 1999 John G. Dorsey.  All Rights Reserved.
  19
  20    Alternatively, the contents of this file may be used under the
  21    terms of the GNU Public License version 2 (the "GPL"), in which
  22    case the provisions of the GPL are applicable instead of the
  23    above.  If you wish to allow the use of your version of this file
  24    only under the terms of the GPL and not to allow others to use
  25    your version of this file under the MPL, indicate your decision
  26    by deleting the provisions above and replace them with the notice
  27    and other provisions required by the GPL.  If you do not delete
  28    the provisions above, a recipient may use your version of this
  29    file under either the MPL or the GPL.
  30    
  31======================================================================*/
  32
  33#include <linux/module.h>
  34#include <linux/init.h>
  35#include <linux/slab.h>
  36#include <linux/platform_device.h>
  37
  38#include <pcmcia/ss.h>
  39
  40#include <asm/hardware/scoop.h>
  41
  42#include "sa1100_generic.h"
  43
  44int __init pcmcia_collie_init(struct device *dev);
  45
  46static int (*sa11x0_pcmcia_hw_init[])(struct device *dev) = {
  47#ifdef CONFIG_SA1100_ASSABET
  48        pcmcia_assabet_init,
  49#endif
  50#ifdef CONFIG_SA1100_CERF
  51        pcmcia_cerf_init,
  52#endif
  53#if defined(CONFIG_SA1100_H3100) || defined(CONFIG_SA1100_H3600)
  54        pcmcia_h3600_init,
  55#endif
  56#ifdef CONFIG_SA1100_NANOENGINE
  57        pcmcia_nanoengine_init,
  58#endif
  59#ifdef CONFIG_SA1100_SHANNON
  60        pcmcia_shannon_init,
  61#endif
  62#ifdef CONFIG_SA1100_SIMPAD
  63        pcmcia_simpad_init,
  64#endif
  65#ifdef CONFIG_SA1100_COLLIE
  66       pcmcia_collie_init,
  67#endif
  68};
  69
  70static int sa11x0_drv_pcmcia_probe(struct platform_device *dev)
  71{
  72        int i, ret = -ENODEV;
  73
  74        /*
  75         * Initialise any "on-board" PCMCIA sockets.
  76         */
  77        for (i = 0; i < ARRAY_SIZE(sa11x0_pcmcia_hw_init); i++) {
  78                ret = sa11x0_pcmcia_hw_init[i](&dev->dev);
  79                if (ret == 0)
  80                        break;
  81        }
  82
  83        return ret;
  84}
  85
  86static int sa11x0_drv_pcmcia_remove(struct platform_device *dev)
  87{
  88        struct skt_dev_info *sinfo = platform_get_drvdata(dev);
  89        int i;
  90
  91        platform_set_drvdata(dev, NULL);
  92
  93        for (i = 0; i < sinfo->nskt; i++)
  94                soc_pcmcia_remove_one(&sinfo->skt[i]);
  95
  96        kfree(sinfo);
  97        return 0;
  98}
  99
 100static struct platform_driver sa11x0_pcmcia_driver = {
 101        .driver = {
 102                .name           = "sa11x0-pcmcia",
 103                .owner          = THIS_MODULE,
 104        },
 105        .probe          = sa11x0_drv_pcmcia_probe,
 106        .remove         = sa11x0_drv_pcmcia_remove,
 107};
 108
 109/* sa11x0_pcmcia_init()
 110 * ^^^^^^^^^^^^^^^^^^^^
 111 *
 112 * This routine performs low-level PCMCIA initialization and then
 113 * registers this socket driver with Card Services.
 114 *
 115 * Returns: 0 on success, -ve error code on failure
 116 */
 117static int __init sa11x0_pcmcia_init(void)
 118{
 119        return platform_driver_register(&sa11x0_pcmcia_driver);
 120}
 121
 122/* sa11x0_pcmcia_exit()
 123 * ^^^^^^^^^^^^^^^^^^^^
 124 * Invokes the low-level kernel service to free IRQs associated with this
 125 * socket controller and reset GPIO edge detection.
 126 */
 127static void __exit sa11x0_pcmcia_exit(void)
 128{
 129        platform_driver_unregister(&sa11x0_pcmcia_driver);
 130}
 131
 132MODULE_AUTHOR("John Dorsey <john+@cs.cmu.edu>");
 133MODULE_DESCRIPTION("Linux PCMCIA Card Services: SA-11x0 Socket Controller");
 134MODULE_LICENSE("Dual MPL/GPL");
 135
 136fs_initcall(sa11x0_pcmcia_init);
 137module_exit(sa11x0_pcmcia_exit);
 138