misc: tspp: adding TSPP driver files
The TSPP driver manages the transport stream packet processor. This core
is used to offload the main CPU by handling MPEG TS packets, generally
coming from a broadcast modem using the ISDB-T (or variant) protocol.
Change-Id: Ia4c16dcce970ae0f52d8d17957a92fce34ecdb44
Signed-off-by: Joel Nider <jnider@codeaurora.org>
diff --git a/include/linux/tspp.h b/include/linux/tspp.h
new file mode 100644
index 0000000..d5a5ffc
--- /dev/null
+++ b/include/linux/tspp.h
@@ -0,0 +1,84 @@
+#ifndef _TSPP_H_
+#define _TSPP_H_
+
+#include <linux/ioctl.h>
+
+#define TSPP_NUM_SYSTEM_KEYS 8
+
+enum tspp_key_parity {
+ TSPP_KEY_PARITY_EVEN,
+ TSPP_KEY_PARITY_ODD
+};
+
+enum tspp_source {
+ TSPP_SOURCE_TSIF0,
+ TSPP_SOURCE_TSIF1,
+ TSPP_SOURCE_MEM,
+ TSPP_SOURCE_NONE = -1
+};
+
+enum tspp_mode {
+ TSPP_MODE_DISABLED,
+ TSPP_MODE_PES,
+ TSPP_MODE_RAW,
+ TSPP_MODE_RAW_NO_SUFFIX
+};
+
+struct tspp_filter {
+ int pid;
+ int mask;
+ enum tspp_mode mode;
+ int priority; /* 0 - 15 */
+ int decrypt;
+ enum tspp_source source;
+};
+
+struct tspp_select_source {
+ enum tspp_source source;
+};
+
+struct tspp_pid {
+ int pid;
+};
+
+struct tspp_key {
+ enum tspp_key_parity parity;
+ int lsb;
+ int msb;
+};
+
+struct tspp_iv {
+ int data[2];
+};
+
+struct tspp_system_keys {
+ int data[TSPP_NUM_SYSTEM_KEYS];
+};
+
+struct tspp_buffer {
+ int size;
+};
+
+/* defines for IOCTL functions */
+/* read Documentation/ioctl-number.txt */
+/* some random number to avoid coinciding with other ioctl numbers */
+#define TSPP_IOCTL_BASE 0xAA
+#define TSPP_IOCTL_SELECT_SOURCE \
+ _IOW(TSPP_IOCTL_BASE, 0, struct tspp_select_source)
+#define TSPP_IOCTL_ADD_FILTER \
+ _IOW(TSPP_IOCTL_BASE, 1, struct tspp_filter)
+#define TSPP_IOCTL_REMOVE_FILTER \
+ _IOW(TSPP_IOCTL_BASE, 2, struct tspp_pid)
+#define TSPP_IOCTL_SET_KEY \
+ _IOW(TSPP_IOCTL_BASE, 3, struct tspp_key)
+#define TSPP_IOCTL_SET_IV \
+ _IOW(TSPP_IOCTL_BASE, 4, struct tspp_iv)
+#define TSPP_IOCTL_SET_SYSTEM_KEYS \
+ _IOW(TSPP_IOCTL_BASE, 5, struct tspp_system_keys)
+#define TSPP_IOCTL_BUFFER_SIZE \
+ _IOW(TSPP_IOCTL_BASE, 6, struct tspp_buffer)
+#define TSPP_IOCTL_LOOPBACK \
+ _IOW(TSPP_IOCTL_BASE, 0xFF, int)
+
+
+#endif /* _TSPP_H_ */