Lines Matching full:buffer

3  * Generic bounce buffer implementation
14  * GEN_BB_READ -- Data are read from the buffer eg. by DMA hardware.
15  * The source buffer is copied into the bounce buffer (if unaligned, otherwise
16  * the source buffer is used directly) upon start() call, then the operation
17  * requiring the aligned transfer happens, then the bounce buffer is lost upon
22  * GEN_BB_WRITE -- Data are written into the buffer eg. by DMA hardware.
23  * The source buffer starts in an undefined state upon start() call, then the
24  * operation requiring the aligned transfer happens, then the bounce buffer is
25  * copied into the destination buffer (if unaligned, otherwise destination
26  * buffer is used directly) upon stop() call.
30  * GEN_BB_RW -- Data are read and written into the buffer eg. by DMA hardware.
31  * The source buffer is copied into the bounce buffer (if unaligned, otherwise
32  * the source buffer is used directly) upon start() call, then the  operation
33  * requiring the aligned transfer happens, then the bounce buffer is  copied
34  * into the destination buffer (if unaligned, otherwise destination buffer is
43 	 * DMA-aligned buffer. This field is always set to the value that
45 	 * freshly allocated aligned buffer.
50 	/* DMA-aligned buffer length */
57  * bounce_buffer_start() -- Start the bounce buffer session
59  * data:	pointer to buffer to be aligned
60  * len:		length of the buffer
66  * bounce_buffer_stop() -- Finish the bounce buffer session