Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / sound / firewire / packets-buffer.h

diff --git a/kernel/sound/firewire/packets-buffer.h b/kernel/sound/firewire/packets-buffer.h
new file mode 100644 (file)
index 0000000..6513c5c
--- /dev/null
+++ b/kernel/sound/firewire/packets-buffer.h
@@ -0,0 +1,26 @@
+#ifndef SOUND_FIREWIRE_PACKETS_BUFFER_H_INCLUDED
+#define SOUND_FIREWIRE_PACKETS_BUFFER_H_INCLUDED
+
+#include <linux/dma-mapping.h>
+#include <linux/firewire.h>
+
+/**
+ * struct iso_packets_buffer - manages a buffer for many packets
+ * @iso_buffer: the memory containing the packets
+ * @packets: an array, with each element pointing to one packet
+ */
+struct iso_packets_buffer {
+       struct fw_iso_buffer iso_buffer;
+       struct {
+               void *buffer;
+               unsigned int offset;
+       } *packets;
+};
+
+int iso_packets_buffer_init(struct iso_packets_buffer *b, struct fw_unit *unit,
+                           unsigned int count, unsigned int packet_size,
+                           enum dma_data_direction direction);
+void iso_packets_buffer_destroy(struct iso_packets_buffer *b,
+                               struct fw_unit *unit);
+
+#endif