diff options
Diffstat (limited to 'drivers/usb/susb/lm.c')
-rw-r--r-- | drivers/usb/susb/lm.c | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/drivers/usb/susb/lm.c b/drivers/usb/susb/lm.c new file mode 100644 index 00000000000..7f86c395b0a --- /dev/null +++ b/drivers/usb/susb/lm.c @@ -0,0 +1,138 @@ +/* + * linux/arch/arm/mach-k3v2/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 "lm.h" +#include <linux/string.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) +{ + if (!dev_name(dev) || !drv->name) { + WARN(!dev_name(dev), "logic model device no name!\n"); + WARN(!drv->name, "logic model driver no name!\n"); + return 0; + } + if (0 == strcmp(dev_name(dev), drv->name)) + return 1; + else + return 0; +} + +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 int lm_bus_suspend(struct device *dev, pm_message_t state) +{ + struct lm_device *lmdev = to_lm_device(dev); + struct lm_driver *lmdrv = to_lm_driver(dev->driver); + + if (lmdrv->suspend) + return lmdrv->suspend(lmdev, state); + return 0; +} + +static int lm_bus_resume(struct device *dev) +{ + struct lm_device *lmdev = to_lm_device(dev); + struct lm_driver *lmdrv = to_lm_driver(dev->driver); + + if (lmdrv->resume) + return lmdrv->resume(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; + + if (dev->dev.init_name) { + ret = dev_set_name(&dev->dev, dev->dev.init_name, dev->id); + } else { + ret = dev_set_name(&dev->dev, "lm%d", dev->id); + } + if (ret) { + WARN(1, "lm device set name fail\n"); + return ret; + } + + dev->resource.name = dev_name(&dev->dev); + + ret = request_resource(&iomem_resource, &dev->resource); + if (ret == 0) { + ret = device_register(&dev->dev); + if (ret) { + release_resource(&dev->resource); + WARN(1, "lm device register device fail\n"); + } + } else + WARN(1, "lm device request resource fail\n"); + + return ret; +} + +EXPORT_SYMBOL(lm_driver_register); +EXPORT_SYMBOL(lm_driver_unregister); |