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efi_net.c

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  • misc-uclass.c 1.27 KiB
    /*
     * Copyright (C) 2010 Thomas Chou <thomas@wytron.com.tw>
     *
     * SPDX-License-Identifier:	GPL-2.0+
     */
    
    #include <common.h>
    #include <dm.h>
    #include <errno.h>
    #include <misc.h>
    
    /*
     * Implement a  miscellaneous uclass for those do not fit other more
     * general classes. A set of generic read, write and ioctl methods may
     * be used to access the device.
     */
    
    int misc_read(struct udevice *dev, int offset, void *buf, int size)
    {
    	const struct misc_ops *ops = device_get_ops(dev);
    
    	if (!ops->read)
    		return -ENOSYS;
    
    	return ops->read(dev, offset, buf, size);
    }
    
    int misc_write(struct udevice *dev, int offset, void *buf, int size)
    {
    	const struct misc_ops *ops = device_get_ops(dev);
    
    	if (!ops->write)
    		return -ENOSYS;
    
    	return ops->write(dev, offset, buf, size);
    }
    
    int misc_ioctl(struct udevice *dev, unsigned long request, void *buf)
    {
    	const struct misc_ops *ops = device_get_ops(dev);
    
    	if (!ops->ioctl)
    		return -ENOSYS;
    
    	return ops->ioctl(dev, request, buf);
    }
    
    int misc_call(struct udevice *dev, int msgid, void *tx_msg, int tx_size,
    	      void *rx_msg, int rx_size)
    {
    	const struct misc_ops *ops = device_get_ops(dev);
    
    	if (!ops->call)
    		return -ENOSYS;
    
    	return ops->call(dev, msgid, tx_msg, tx_size, rx_msg, rx_size);
    }
    
    UCLASS_DRIVER(misc) = {
    	.id		= UCLASS_MISC,
    	.name		= "misc",
    };