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>

arch/arm/mach-msm/include/mach/msm_tspp.h

@@ -0,0 +1,24 @@
+/* Copyright (c) 2011, Code Aurora Forum. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * 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.
+ */
+
+#ifndef _MSM_TSPP_H_
+#define _MSM_TSPP_H_
+
+struct msm_tspp_platform_data {
+	int num_gpios;
+	const struct msm_gpio *gpios;
+	const char *tsif_pclk;
+	const char *tsif_ref_clk;
+};
+
+#endif /* _MSM_TSPP_H_ */
+

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_ */