Initial commit: MT firmware project

- BLE peripheral applications
- dr_piezo and bladder_patch projects

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

external/infineon/optiga/include/optiga/pal/pal_i2c.h

@@ -0,0 +1,107 @@
+/**
+* MIT License
+*
+* Copyright (c) 2018 Infineon Technologies AG
+*
+* Permission is hereby granted, free of charge, to any person obtaining a copy
+* of this software and associated documentation files (the "Software"), to deal
+* in the Software without restriction, including without limitation the rights
+* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+* copies of the Software, and to permit persons to whom the Software is
+* furnished to do so, subject to the following conditions:
+*
+* The above copyright notice and this permission notice shall be included in all
+* copies or substantial portions of the Software.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE
+*
+*
+* \file
+*
+* \brief This file implements the prototype declarations of pal i2c
+*
+* \addtogroup  grPAL
+* @{
+*/
+
+#ifndef _PAL_I2C_H_
+#define _PAL_I2C_H_
+
+/**********************************************************************************************************************
+ * HEADER FILES
+ *********************************************************************************************************************/
+
+#include "optiga/pal/pal.h"
+
+/**********************************************************************************************************************
+ * MACROS
+ *********************************************************************************************************************/
+/// Event returned when I2C master completes execution
+#define PAL_I2C_EVENT_SUCCESS (0x0000)
+/// Event returned when I2C master operation fails
+#define PAL_I2C_EVENT_ERROR   (0x0001)
+/// Event returned when lower level I2C bus is busy
+#define PAL_I2C_EVENT_BUSY    (0x0002)
+
+/**********************************************************************************************************************
+ * ENUMS
+ *********************************************************************************************************************/
+
+/**********************************************************************************************************************
+ * DATA STRUCTURES
+ *********************************************************************************************************************/
+/** @brief PAL I2C context structure */
+typedef struct pal_i2c
+{
+    /// Pointer to I2C master platform specific context
+    void* p_i2c_hw_config;
+    /// I2C slave address
+    uint8_t slave_address;
+    /// Pointer to store the callers context information
+    void* upper_layer_ctx;
+    /// Pointer to store the callers handler
+    void* upper_layer_event_handler;
+
+} pal_i2c_t;
+
+/**********************************************************************************************************************
+ * API Prototypes
+ *********************************************************************************************************************/
+/**
+ * @brief Initializes the I2C master.
+ */
+pal_status_t pal_i2c_init(const pal_i2c_t* p_i2c_context);
+
+/**
+ * @brief Sets the I2C Master bitrate
+ */
+pal_status_t pal_i2c_set_bitrate(const pal_i2c_t* p_i2c_context, uint16_t bitrate);
+
+//Dileep:  "write on I2C bus" --> "write to I2C bus"
+/**
+ * @brief Writes on I2C bus.
+ */
+pal_status_t pal_i2c_write(pal_i2c_t* p_i2c_context, uint8_t* p_data , uint16_t length);
+
+/**
+ * @brief Reads from I2C bus.
+ */
+pal_status_t pal_i2c_read(pal_i2c_t* p_i2c_context, uint8_t* p_data , uint16_t length);
+
+/**
+ * @brief De-initializes the I2C master.
+ */
+pal_status_t pal_i2c_deinit(const pal_i2c_t* p_i2c_context);
+
+#endif /* _PAL_I2C_H_ */
+
+/**
+* @}
+*/
+