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drivers/pcmcia/sa1100_generic.c 3.88 KB
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  /*======================================================================
  
      Device driver for the PCMCIA control functionality of StrongARM
      SA-1100 microprocessors.
  
      The contents of this file are subject to the Mozilla Public
      License Version 1.1 (the "License"); you may not use this file
      except in compliance with the License. You may obtain a copy of
      the License at http://www.mozilla.org/MPL/
  
      Software distributed under the License is distributed on an "AS
      IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
      implied. See the License for the specific language governing
      rights and limitations under the License.
  
      The initial developer of the original code is John G. Dorsey
      <john+@cs.cmu.edu>.  Portions created by John G. Dorsey are
      Copyright (C) 1999 John G. Dorsey.  All Rights Reserved.
  
      Alternatively, the contents of this file may be used under the
      terms of the GNU Public License version 2 (the "GPL"), in which
      case the provisions of the GPL are applicable instead of the
      above.  If you wish to allow the use of your version of this file
      only under the terms of the GPL and not to allow others to use
      your version of this file under the MPL, indicate your decision
      by deleting the provisions above and replace them with the notice
      and other provisions required by the GPL.  If you do not delete
      the provisions above, a recipient may use your version of this
      file under either the MPL or the GPL.
      
  ======================================================================*/
  
  #include <linux/module.h>
  #include <linux/init.h>
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  #include <linux/slab.h>
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  #include <linux/platform_device.h>
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  #include <pcmcia/ss.h>
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  #include <asm/hardware/scoop.h>
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  #include "sa1100_generic.h"
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  int __init pcmcia_collie_init(struct device *dev);
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  static int (*sa11x0_pcmcia_hw_init[])(struct device *dev) __devinitdata = {
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  #ifdef CONFIG_SA1100_ASSABET
  	pcmcia_assabet_init,
  #endif
  #ifdef CONFIG_SA1100_CERF
  	pcmcia_cerf_init,
  #endif
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  #if defined(CONFIG_SA1100_H3100) || defined(CONFIG_SA1100_H3600)
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  	pcmcia_h3600_init,
  #endif
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  #ifdef CONFIG_SA1100_NANOENGINE
  	pcmcia_nanoengine_init,
  #endif
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  #ifdef CONFIG_SA1100_SHANNON
  	pcmcia_shannon_init,
  #endif
  #ifdef CONFIG_SA1100_SIMPAD
  	pcmcia_simpad_init,
  #endif
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  #ifdef CONFIG_SA1100_COLLIE
         pcmcia_collie_init,
  #endif
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  };
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  static int __devinit sa11x0_drv_pcmcia_probe(struct platform_device *dev)
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  {
  	int i, ret = -ENODEV;
  
  	/*
  	 * Initialise any "on-board" PCMCIA sockets.
  	 */
  	for (i = 0; i < ARRAY_SIZE(sa11x0_pcmcia_hw_init); i++) {
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  		ret = sa11x0_pcmcia_hw_init[i](&dev->dev);
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  		if (ret == 0)
  			break;
  	}
  
  	return ret;
  }
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  static int sa11x0_drv_pcmcia_remove(struct platform_device *dev)
  {
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  	struct skt_dev_info *sinfo = platform_get_drvdata(dev);
  	int i;
  
  	platform_set_drvdata(dev, NULL);
  
  	for (i = 0; i < sinfo->nskt; i++)
  		soc_pcmcia_remove_one(&sinfo->skt[i]);
  
  	kfree(sinfo);
  	return 0;
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  }
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  static struct platform_driver sa11x0_pcmcia_driver = {
  	.driver = {
  		.name		= "sa11x0-pcmcia",
  		.owner		= THIS_MODULE,
  	},
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  	.probe		= sa11x0_drv_pcmcia_probe,
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  	.remove		= sa11x0_drv_pcmcia_remove,
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  };
  
  /* sa11x0_pcmcia_init()
   * ^^^^^^^^^^^^^^^^^^^^
   *
   * This routine performs low-level PCMCIA initialization and then
   * registers this socket driver with Card Services.
   *
   * Returns: 0 on success, -ve error code on failure
   */
  static int __init sa11x0_pcmcia_init(void)
  {
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  	return platform_driver_register(&sa11x0_pcmcia_driver);
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  }
  
  /* sa11x0_pcmcia_exit()
   * ^^^^^^^^^^^^^^^^^^^^
   * Invokes the low-level kernel service to free IRQs associated with this
   * socket controller and reset GPIO edge detection.
   */
  static void __exit sa11x0_pcmcia_exit(void)
  {
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  	platform_driver_unregister(&sa11x0_pcmcia_driver);
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  }
  
  MODULE_AUTHOR("John Dorsey <john+@cs.cmu.edu>");
  MODULE_DESCRIPTION("Linux PCMCIA Card Services: SA-11x0 Socket Controller");
  MODULE_LICENSE("Dual MPL/GPL");
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  fs_initcall(sa11x0_pcmcia_init);
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  module_exit(sa11x0_pcmcia_exit);