Fixed MTP to work with TWRP

drivers/misc/samsung/scsc/mxconf.h

@@ -0,0 +1,145 @@
+/****************************************************************************
+ *
+ * Copyright (c) 2014 - 2016 Samsung Electronics Co., Ltd. All rights reserved
+ *
+ ****************************************************************************/
+
+/**
+ * mx140 Infrastructure Configuration Structure.
+ *
+ * Used to pass configuration data from AP to R4 infrastructure
+ * on Maxwell Subsystem startup.
+ *
+ * Notes:
+ *
+ * - All multi-octet integers shall be stored LittleEndian.
+ *
+ * - All location fields ("*_loc") are 32 bit octet offsets w.r.t. the R4
+ * address map. They can therefore refer to DRAM memory or Mailbox registers.
+ *
+ * - "typedefs" are avoided to allow inclusion in linux source code.
+ */
+#ifndef MXCONF_H__
+#define MXCONF_H__
+
+/* Uses */
+
+
+/* Definitions */
+
+/**
+ *  Config structure magic number.
+ *
+ *  The AP writes this value and the R4 checks it to trap endian mismatches.
+ */
+#define MXCONF_MAGIC 0x79828486
+
+/**
+ *  Config structure version
+ *
+ *  The AP writes these values and the R4 checks them to trap config structure
+ *  mismatches.
+ */
+#define MXCONF_VERSION_MAJOR 0
+#define MXCONF_VERSION_MINOR 1
+
+/* Macros */
+#define GCC_PACKED __attribute__((packed))
+
+
+/* Types */
+
+/**
+ * Maxwell Circular Packet Buffer Configuration.
+ */
+GCC_PACKED struct mxcbufconf {
+	scsc_mifram_ref buffer_loc;      /**< Location of allocated buffer in DRAM */
+	uint32_t        num_packets;     /**< Total number of packets that can be stored in the buffer */
+	uint32_t        packet_size;     /**< Size of each individual packet within the buffer */
+	scsc_mifram_ref read_index_loc;  /**< Location of 32bit read index in DRAM or Mailbox */
+	scsc_mifram_ref write_index_loc; /**< Location of 32bit write index */
+};
+
+/**
+ * Maxwell Management Simplex Stream Configuration
+ *
+ * A circular buffer plus a pair of R/W signaling bits.
+ */
+GCC_PACKED struct mxstreamconf {
+	/** Circular Packet Buffer configuration */
+	struct mxcbufconf buf_conf;
+
+	/** Allocated MIF Interrupt Read Bit Index */
+	uint8_t           read_bit_idx;
+
+	/** Allocated MIF Interrupt Write Bit Index */
+	uint8_t           write_bit_idx;
+};
+
+/**
+ * Maxwell Management Transport Configuration
+ *
+ * A pair of simplex streams.
+ */
+GCC_PACKED struct mxtransconf {
+	struct mxstreamconf to_ap_stream_conf;
+	struct mxstreamconf from_ap_stream_conf;
+};
+
+/**
+ * Maxwell Infrastructure Configuration Version
+ */
+GCC_PACKED struct mxconfversion {
+	uint16_t major;
+	uint16_t minor;
+};
+
+/**
+  * Mxlog Event Buffer Configuration.
+  *
+  * A circular buffer. Size must be a multiple of 2.
+  */
+GCC_PACKED struct mxlogconf
+{
+	struct mxstreamconf stream_conf;
+};
+
+/**
+ * Maxwell Infrastructure Configuration
+ */
+GCC_PACKED struct mxconf {
+	/**
+	 * Config Magic Number
+	 *
+	 * Always 1st field in config.
+	 */
+	uint32_t magic;
+
+	/**
+	 * Config Version.
+	 *
+	 * Always second field in config.
+	 */
+	struct mxconfversion version;
+
+	/**
+	 * MX Management Message Transport Configuration.
+	 */
+	struct mxtransconf   mx_trans_conf;
+
+	/**
+	 * MX Management GDB Message Transport Configuration.
+	 */
+	/* Cortex-R4 channel */
+	struct mxtransconf   mx_trans_conf_gdb_r4;
+	/* Cortex-M4 channel */
+	struct mxtransconf   mx_trans_conf_gdb_m4;
+
+	/**
+	* Mxlog Event Buffer Configuration.
+	*/
+	struct mxlogconf mxlogconf;
+
+};
+
+#endif /* MXCONF_H__ */