+/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Generic bounce buffer implementation
*
* Copyright (C) 2012 Marek Vasut <marex@denx.de>
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __INCLUDE_BOUNCEBUF_H__
*/
int bounce_buffer_start(struct bounce_buffer *state, void *data,
size_t len, unsigned int flags);
+
+/**
+ * bounce_buffer_start() -- Start the bounce buffer session with external align check function
+ * state: stores state passed between bounce_buffer_{start,stop}
+ * data: pointer to buffer to be aligned
+ * len: length of the buffer
+ * flags: flags describing the transaction, see above.
+ * alignment: alignment of the newly allocated bounce buffer
+ * addr_is_aligned: function for checking the alignment instead of the default one
+ */
+int bounce_buffer_start_extalign(struct bounce_buffer *state, void *data,
+ size_t len, unsigned int flags,
+ size_t alignment,
+ int (*addr_is_aligned)(struct bounce_buffer *state));
+
/**
* bounce_buffer_stop() -- Finish the bounce buffer session
* state: stores state passed between bounce_buffer_{start,stop}