Logo Search packages:      
Sourcecode: linux-2.6 version File versions

lm.c

/*
 *  linux/arch/arm/mach-integrator/lm.c
 *
 *  Copyright (C) 2003 Deep Blue Solutions Ltd, All Rights Reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */
#include <linux/module.h>
#include <linux/init.h>
#include <linux/device.h>
#include <linux/slab.h>

#include <asm/arch/lm.h>

#define to_lm_device(d) container_of(d, struct lm_device, dev)
#define to_lm_driver(d) container_of(d, struct lm_driver, drv)

static int lm_match(struct device *dev, struct device_driver *drv)
{
      return 1;
}

static int lm_bus_probe(struct device *dev)
{
      struct lm_device *lmdev = to_lm_device(dev);
      struct lm_driver *lmdrv = to_lm_driver(dev->driver);

      return lmdrv->probe(lmdev);
}

static int lm_bus_remove(struct device *dev)
{
      struct lm_device *lmdev = to_lm_device(dev);
      struct lm_driver *lmdrv = to_lm_driver(dev->driver);

      if (lmdrv->remove)
            lmdrv->remove(lmdev);
      return 0;
}

static struct bus_type lm_bustype = {
      .name       = "logicmodule",
      .match            = lm_match,
      .probe            = lm_bus_probe,
      .remove           = lm_bus_remove,
//    .suspend    = lm_bus_suspend,
//    .resume           = lm_bus_resume,
};

static int __init lm_init(void)
{
      return bus_register(&lm_bustype);
}

postcore_initcall(lm_init);

int lm_driver_register(struct lm_driver *drv)
{
      drv->drv.bus = &lm_bustype;
      return driver_register(&drv->drv);
}

void lm_driver_unregister(struct lm_driver *drv)
{
      driver_unregister(&drv->drv);
}

static void lm_device_release(struct device *dev)
{
      struct lm_device *d = to_lm_device(dev);

      kfree(d);
}

int lm_device_register(struct lm_device *dev)
{
      int ret;

      dev->dev.release = lm_device_release;
      dev->dev.bus = &lm_bustype;

      snprintf(dev->dev.bus_id, sizeof(dev->dev.bus_id), "lm%d", dev->id);
      dev->resource.name = dev->dev.bus_id;

      ret = request_resource(&iomem_resource, &dev->resource);
      if (ret == 0) {
            ret = device_register(&dev->dev);
            if (ret)
                  release_resource(&dev->resource);
      }
      return ret;
}

EXPORT_SYMBOL(lm_driver_register);
EXPORT_SYMBOL(lm_driver_unregister);

Generated by  Doxygen 1.6.0   Back to index