Merge branch 'master' of git://git.denx.de/u-boot

[platform/kernel/u-boot.git] / include / bouncebuf.h

diff --git a/include/bouncebuf.h b/include/bouncebuf.h
index 707b588..7427bd1 100644 (file)
--- a/include/bouncebuf.h
+++ b/include/bouncebuf.h
@@ -1,25 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Generic bounce buffer implementation
  *
  * Copyright (C) 2012 Marek Vasut <marex@denx.de>
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
  */
 
 #ifndef __INCLUDE_BOUNCEBUF_H__
@@ -79,6 +62,21 @@ struct bounce_buffer {
  */
 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}