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	The write operation in misc_ops already takes a "const void *" buffer, but misc_write() takes a mutable "void *". There's no reason for this, so make misc_write() consistent with the standard write() prototype. Signed-off-by: John Keeping <john@metanate.com> Reviewed-by: Simon Glass <sjg@chromium.org>
		
			
				
	
	
		
			77 lines
		
	
	
		
			1.6 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			77 lines
		
	
	
		
			1.6 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| // SPDX-License-Identifier: GPL-2.0+
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| /*
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|  * Copyright (C) 2010 Thomas Chou <thomas@wytron.com.tw>
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|  */
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| 
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| #define LOG_CATEGORY UCLASS_MISC
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| 
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| #include <common.h>
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| #include <dm.h>
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| #include <errno.h>
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| #include <misc.h>
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| 
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| /*
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|  * Implement a  miscellaneous uclass for those do not fit other more
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|  * general classes. A set of generic read, write and ioctl methods may
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|  * be used to access the device.
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|  */
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| 
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| int misc_read(struct udevice *dev, int offset, void *buf, int size)
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| {
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| 	const struct misc_ops *ops = device_get_ops(dev);
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| 
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| 	if (!ops->read)
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| 		return -ENOSYS;
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| 
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| 	return ops->read(dev, offset, buf, size);
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| }
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| 
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| int misc_write(struct udevice *dev, int offset, const void *buf, int size)
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| {
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| 	const struct misc_ops *ops = device_get_ops(dev);
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| 
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| 	if (!ops->write)
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| 		return -ENOSYS;
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| 
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| 	return ops->write(dev, offset, buf, size);
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| }
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| 
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| int misc_ioctl(struct udevice *dev, unsigned long request, void *buf)
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| {
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| 	const struct misc_ops *ops = device_get_ops(dev);
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| 
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| 	if (!ops->ioctl)
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| 		return -ENOSYS;
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| 
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| 	return ops->ioctl(dev, request, buf);
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| }
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| 
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| int misc_call(struct udevice *dev, int msgid, void *tx_msg, int tx_size,
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| 	      void *rx_msg, int rx_size)
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| {
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| 	const struct misc_ops *ops = device_get_ops(dev);
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| 
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| 	if (!ops->call)
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| 		return -ENOSYS;
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| 
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| 	return ops->call(dev, msgid, tx_msg, tx_size, rx_msg, rx_size);
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| }
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| 
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| int misc_set_enabled(struct udevice *dev, bool val)
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| {
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| 	const struct misc_ops *ops = device_get_ops(dev);
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| 
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| 	if (!ops->set_enabled)
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| 		return -ENOSYS;
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| 
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| 	return ops->set_enabled(dev, val);
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| }
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| 
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| UCLASS_DRIVER(misc) = {
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| 	.id		= UCLASS_MISC,
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| 	.name		= "misc",
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| #if CONFIG_IS_ENABLED(OF_REAL)
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| 	.post_bind	= dm_scan_fdt_dev,
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| #endif
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| };
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