Diff: SHMAX8614X/SH_Max8614x_BareMetal.cpp

Revision:

0:ac4dea3e2894

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/SHMAX8614X/SH_Max8614x_BareMetal.cpp	Mon Mar 18 10:21:53 2019 +0300
@@ -0,0 +1,887 @@
+/*******************************************************************************
+ * Copyright (C) 2018 Maxim Integrated Products, Inc., All Rights Reserved.
+ *
+ * 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 MAXIM INTEGRATED 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.
+ *
+ * Except as contained in this notice, the name of Maxim Integrated
+ * Products, Inc. shall not be used except as stated in the Maxim Integrated
+ * Products, Inc. Branding Policy.
+ *
+ * The mere transfer of this software does not imply any licenses
+ * of trade secrets, proprietary technology, copyrights, patents,
+ * trademarks, maskwork rights, or any other form of intellectual
+ * property whatsoever. Maxim Integrated Products, Inc. retains all
+ * ownership rights.
+ *******************************************************************************
+ */
+#include "SH_Max8614x_BareMetal.h"
+#include "SHComm.h"
+#include "HostAccelHelper.h"
+#include <string.h> //for memset
+#include <stdint.h>
+
+#include "demoDefinitions.h"
+
+/* Do not warn sign/unsigned miss alignment*/
+//#pragma warning (disable : 4018 )
+
+uint16_t HrmResult       = 0;
+uint8_t  HrmConfidence   = 0;
+
+//#define SERIALOUT printf
+#define DEBUG_INFO
+
+#if defined(DEBUG_INFO)
+	#define __DBGMESSAGE( str , val ) {printf(str, val);}
+#else
+	#define __DBGMESSAGE( str , val )
+#endif
+
+
+// Defines
+#define SSMAX8614X_REG_SIZE  		1
+#define SSMAX8614X_MODE1_DATASIZE  18				//Taken from API doc
+#define SSWHRM_MODE1_DATASIZE 		6				//Taken from API doc
+#define SSACCEL_MODE1_DATASIZE  	6				//Taken from API doc
+#define SSAGC_MODE1_DATASIZE  		0				//Taken from API doc
+#define SSBPT_MODE1_2_DATASIZE  	4				//Taken from API doc /* TODO */
+
+#define MIN_MACRO(a,b) ((a)<(b)?(a):(b))
+
+// sensor configuration
+//#define ENABLE_SENSOR_HUB_ACCEL
+#define USE_HOST_ACCEL
+// end of senor and algorithm configuration
+#define MAX_NUM_WR_ACC_SAMPLES			 5
+#define BMI160_SAMPLE_RATE				25
+// end of defines
+
+//function pointer use to perform arithmetic operation
+typedef void (*rx_data_callback)(uint8_t *);
+typedef struct {
+	int data_size;
+	rx_data_callback rx_data_parser;
+} ss_data_req;
+
+typedef struct {
+	int16_t x;
+	int16_t y;
+	int16_t z;
+} accel_mode1_data;
+
+typedef struct {
+	uint32_t led1;
+	uint32_t led2;
+	uint32_t led3;
+	uint32_t led4;
+	uint32_t led5;
+	uint32_t led6;
+} max8614x_mode1_data;
+
+typedef struct {
+	uint16_t hr;
+	uint8_t hr_conf;
+	uint16_t RESERVED;
+	uint8_t status;
+} whrm_mode1_data;
+
+
+typedef struct Max86140_SH_Status_Tracker {
+	uint8_t sensor_data_from_host;
+	uint8_t data_type_enabled;					// what type of data is enabled
+	uint8_t sample_count_enabled;				// does me11 provide sample count
+	uint32_t sample_count;
+	uint8_t data_buf_storage[512];				// store data read from SH
+	ss_data_req algo_callbacks[SH_NUM_CURRENT_ALGOS];
+	ss_data_req sensor_callbacks[SH_NUM_CURRENT_SENSORS];
+	uint8_t sensor_enabled_mode[SH_NUM_CURRENT_SENSORS];
+	uint8_t algo_enabled_mode[SH_NUM_CURRENT_ALGOS];
+	int input_fifo_size;
+} Max86140_SH_Status_Tracker_t;
+
+// Max8614x Default Callbacks
+void max8614x_data_rx(uint8_t* data_ptr)
+{
+	max8614x_mode1_data sample;
+	sample.led1 = (data_ptr[0] << 16) | (data_ptr[1] << 8) | data_ptr[2];
+	sample.led2 = (data_ptr[3] << 16) | (data_ptr[4] << 8) | data_ptr[5];
+	sample.led3 = (data_ptr[6] << 16) | (data_ptr[7] << 8) | data_ptr[8];
+	sample.led4 = (data_ptr[9] << 16) | (data_ptr[10] << 8) | data_ptr[11];
+	sample.led5 = (data_ptr[12] << 16) | (data_ptr[13] << 8) | data_ptr[14];
+	sample.led6 = (data_ptr[15] << 16) | (data_ptr[16] << 8) | data_ptr[17];
+
+	//SERIALOUT("led1=%.6X led2=%.6X led3=%.6X led4=%.6X led5=%.6X led6=%.6X\r\n",
+	//		sample.led1, sample.led2, sample.led3, sample.led4, sample.led5, sample.led6);
+
+	//enqueue(&max8614x_queue, &sample);
+}
+void whrm_data_rx(uint8_t* data_ptr) {
+	//See API doc for data format
+	whrm_mode1_data sample;
+	sample.hr = (data_ptr[0] << 8) | data_ptr[1];
+	sample.hr_conf = data_ptr[2];
+	sample.RESERVED = (data_ptr[3] << 8) | data_ptr[4];
+	sample.status = data_ptr[5];
+	HrmResult  = sample.hr / 10;
+	HrmConfidence = sample.hr_conf;
+	SERIALOUT("hr_c=%d\r\n", HrmResult);
+#if defined(DEBUG_INFO)
+	SERIALOUT("hr=%.1f conf=%d status=%d\r\n", (float)sample.hr / 10.0, sample.hr_conf, sample.status);
+#endif
+	//enqueue(&whrm_queue, &sample);
+}
+
+void accel_data_rx(uint8_t* data_ptr) {
+	//See API doc for data format
+	accel_mode1_data sample;
+	sample.x = (data_ptr[0] << 8) | data_ptr[1];
+	sample.y = (data_ptr[2] << 8) | data_ptr[3];
+	sample.z = (data_ptr[4] << 8) | data_ptr[5];
+#if defined(DEBUG_INFO)
+	//SERIALOUT("x:%d, y:%d, z:%d\r\n", sample.x, sample.y, sample.z);
+#endif
+}
+
+void agc_data_rx(uint8_t* data_ptr) {
+	//NOP: AGC does not collect data
+}
+// end of Max8614x Default Callbacks
+
+
+static Max86140_SH_Status_Tracker * get_config_struct() {
+
+    /* assigns a static adress to configuration struct*/
+	static Max86140_SH_Status_Tracker glbl_max8614x_status_track;
+	return &glbl_max8614x_status_track;
+}
+
+void initialize_config_struct() {
+	Max86140_SH_Status_Tracker *p_glbl_max8614x_status_track = get_config_struct();
+	/*
+	 * Desc: Configuration init flow, Perform this action at init stage of data acquisition. Raw sesnsor data buffer pointer is input to each
+	 *       enabled sensor/algorithm,s funtion that is responsible to extract numeric data from data byte stream from sensor hub.
+	 *
+	 *       - Append Sensor Raw Data structure with raw sensor data sample size and pointer to function of sensor that is reposible to parse
+	 *         data byte stream from sesnor hub and extract sensor numeric data.
+	 *       - Append accompanying sensors to main state of sensor. ie Accelerometer from Host with sensor data sample size and pointer to function of
+	 *         sensor that is reposible to parse data byte stream from sesnor hub and extract sensor numeric data.
+	 *       - Append algorithms to be enabled  with algorithm data sample size and pointer to function of
+	 *         algorithm that is reposible to parse data byte stream from sensor hub and extract sensor numeric data.
+	 *
+	 * */
+
+	//set all the values to 0
+	memset(p_glbl_max8614x_status_track, 0, sizeof(*p_glbl_max8614x_status_track));
+	// max8614x
+	p_glbl_max8614x_status_track->sensor_callbacks[SH_SENSORIDX_MAX8614X].data_size = SSMAX8614X_MODE1_DATASIZE;
+	p_glbl_max8614x_status_track->sensor_callbacks[SH_SENSORIDX_MAX8614X].rx_data_parser = &max8614x_data_rx;
+	// accelerometer
+	p_glbl_max8614x_status_track->sensor_callbacks[SH_SENSORIDX_ACCEL].data_size = SSACCEL_MODE1_DATASIZE;
+	p_glbl_max8614x_status_track->sensor_callbacks[SH_SENSORIDX_ACCEL].rx_data_parser = &accel_data_rx;
+	// whrm NOTE: do not register aec and scd as they do not have data reporter callbacks and defined within WHRM suite. Look at 8614c command table for aec/scd on/off !!!!
+	p_glbl_max8614x_status_track->algo_callbacks[SH_ALGOIDX_WHRM].data_size = SSWHRM_MODE1_DATASIZE;
+	p_glbl_max8614x_status_track->algo_callbacks[SH_ALGOIDX_WHRM].rx_data_parser = &whrm_data_rx;
+
+}
+
+
+void SH_Max8614x_get_reg(uint8_t addr, uint32_t *val) {
+	int status = sh_get_reg(SH_SENSORIDX_MAX8614X, addr, val);
+
+	if (status == 0) {
+		__DBGMESSAGE("\r\n reg_val=%02X err=0 \r\n", ((uint8_t)*val))
+	} else {
+		__DBGMESSAGE("\r\n err=%d\r\n", -1)
+	}
+
+	return;
+}
+
+int CSTMR_SH_FeedAccDataIntoSH(Max86140_SH_Status_Tracker_t *p_max8614x_status_track) {
+	static accel_data_t peek_buf[MAX_NUM_WR_ACC_SAMPLES];
+	static uint8_t tx_buf[MAX_NUM_WR_ACC_SAMPLES * sizeof(accel_mode1_data) + 2]; // 2 bytes for the command
+	if(!p_max8614x_status_track->sensor_data_from_host) {
+		return -1;
+	} else {
+		accel_data_t accel_data = {0};
+		accel_mode1_data acc_sample;
+		int num_tx, num_samples, num_bytes = 0, num_wr_bytes = 0;
+		int num_written_samples, nb_expected;
+		int ret = 0;
+
+		// get accelerometer data
+		ret = CSTMR_SH_HostAccelerometerGet_sensor_xyz(&accel_data);
+		if (ret < 0)
+			return ret;
+
+		if(CSTMR_SH_HostAccelerometerEnqueueData(&accel_data) != 0) {
+			__DBGMESSAGE("Thrown an accel sample\n", NULL)
+		}
+
+		if(CSTMR_SH_HostAccelerometerGetDataCount() < MAX_NUM_WR_ACC_SAMPLES) {
+			return -1;
+		}
+
+		ret = sh_get_num_bytes_in_input_fifo(&num_bytes);
+		if (ret != 0) {
+			__DBGMESSAGE("Unable to read num bytes in input fifo\r\n", NULL)
+			return -1;
+		}
+		num_tx = p_max8614x_status_track->input_fifo_size - num_bytes;
+		if (num_tx <= 0) {
+			__DBGMESSAGE("num_tx can't be negative\r\n",NULL)
+			return -1;
+		}
+		num_samples = num_tx / sizeof(accel_mode1_data);
+		num_samples = MIN_MACRO(num_samples, MAX_NUM_WR_ACC_SAMPLES);
+		num_tx = num_samples * sizeof(accel_mode1_data);
+		if (num_samples == 0) {
+			__DBGMESSAGE("Input FIFO is Full\r\n",NULL)
+			return -1;
+		}
+
+		for(int i = 0; i < num_samples; ++i) {
+			ret |= CSTMR_SH_HostAccelerometerDequeuData(&peek_buf[i]);
+		}
+		if (ret != 0) {
+			__DBGMESSAGE("CSTMR_SH_HostAccelerometerDequeuData failed\r\n",NULL)
+			return -1;
+		}
+
+
+		for (int i = 2, j = 0; j < num_samples; i+= sizeof(accel_mode1_data), j++) {
+			accel_data = peek_buf[j];
+			acc_sample.x = (int16_t)(accel_data.x*1000);
+			acc_sample.y = (int16_t)(accel_data.y*1000);
+			acc_sample.z = (int16_t)(accel_data.z*1000);
+			tx_buf[i] = acc_sample.x;
+			tx_buf[i + 1] = acc_sample.x >> 8;
+			tx_buf[i + 2] = acc_sample.y;
+			tx_buf[i + 3] = acc_sample.y >> 8;
+			tx_buf[i + 4] = acc_sample.z;
+			tx_buf[i + 5] = acc_sample.z >> 8;
+
+		}
+
+		ret = sh_feed_to_input_fifo(tx_buf, num_tx + 2, &num_wr_bytes);
+		if(ret != 0) {
+			__DBGMESSAGE("sh_feed_to_input_fifo\r\n",NULL)
+			return -1;
+		}
+		num_written_samples = num_wr_bytes / sizeof(accel_mode1_data);
+		if(num_written_samples != num_samples) {
+			__DBGMESSAGE("num_written_samples failed\r\n",NULL)
+			return -1;
+		}
+	}
+	return 0;
+}
+
+
+void SH_Max8614x_set_reg(uint8_t addr, uint32_t val) {
+	int status;
+	status = sh_set_reg(SH_SENSORIDX_MAX8614X, addr, val, SSMAX8614X_REG_SIZE);
+	__DBGMESSAGE("\r\n err=%d\r\n", status);
+}
+
+
+
+int SH_Max8614x_data_report_execute(void) {
+
+	int num_samples, databufLen;
+	uint8_t *databuf;
+
+
+	Max86140_SH_Status_Tracker_t *p_glbl_max8614x_status_track = get_config_struct();
+
+	// prepare the buffer to store the results
+	databuf = p_glbl_max8614x_status_track->data_buf_storage;
+	databufLen = sizeof(p_glbl_max8614x_status_track->data_buf_storage);
+
+	// poll SH
+	sh_ss_execute_once(databuf, databufLen, &num_samples);
+	//__DBGMESSAGE( "nsamplesFIFO: %d \r\n" , num_samples)
+
+	if(num_samples > 0 && num_samples <255) {
+		//Skip status byte
+		uint8_t *data_ptr = &databuf[1];
+
+		int i = 0;
+		for (i = 0; i < num_samples; i++) {
+			int sh_data_type = p_glbl_max8614x_status_track->data_type_enabled;
+			if (p_glbl_max8614x_status_track->sample_count_enabled) {
+				p_glbl_max8614x_status_track->sample_count = *data_ptr++;
+			}
+			//Chop up data and send to modules with enabled sensors
+			if (sh_data_type == SS_DATATYPE_RAW || sh_data_type == SS_DATATYPE_BOTH) {
+				for (int i = 0; i < SH_NUM_CURRENT_SENSORS; i++) {
+					if (p_glbl_max8614x_status_track->sensor_enabled_mode[i]) {
+						p_glbl_max8614x_status_track->sensor_callbacks[i].rx_data_parser(data_ptr);
+						data_ptr += p_glbl_max8614x_status_track->sensor_callbacks[i].data_size;
+					}
+				}
+			}
+			if (sh_data_type == SS_DATATYPE_ALGO || sh_data_type == SS_DATATYPE_BOTH) {
+				for (int i = 0; i < SH_NUM_CURRENT_ALGOS; i++) {
+					if (p_glbl_max8614x_status_track->algo_enabled_mode[i]) {
+						p_glbl_max8614x_status_track->algo_callbacks[i].rx_data_parser(data_ptr);
+						data_ptr += p_glbl_max8614x_status_track->algo_callbacks[i].data_size;
+					}
+				}
+			}
+		}
+        /* JUST*/
+		CSTMR_SH_FeedAccDataIntoSH(p_glbl_max8614x_status_track);
+	}
+	// feed accelerometer into me11
+	//////////////////CSTMR_SH_FeedAccDataIntoSH(p_glbl_max8614x_status_track);
+
+
+	return num_samples;
+}
+
+int SH_Max8614x_algo_init(enum enAlgoMode paramAlgoMode) {
+
+	/*
+	 *
+	 * */
+	int status;
+	Max86140_SH_Status_Tracker_t *p_glbl_max8614x_status_track = get_config_struct();
+	if(p_glbl_max8614x_status_track->algo_enabled_mode[SH_ALGOIDX_WHRM]) {
+		    __DBGMESSAGE("\r\n Algo already enabled\r\n",NULL)
+		return -1;
+	}
+
+	if(paramAlgoMode == kAlgoModeHeartRate) {
+		status = sh_enable_algo(SH_ALGOIDX_WHRM, SSWHRM_MODE1_DATASIZE);
+		if (status != SS_SUCCESS) {
+			__DBGMESSAGE("\r\n err=%d\r\n", COMM_GENERAL_ERROR)
+			__DBGMESSAGE("FAILED at line %d, enable whrm\n", __LINE__)
+			return status;
+		}
+		p_glbl_max8614x_status_track->algo_enabled_mode[SH_ALGOIDX_WHRM] = 0x01;
+	}
+}
+
+
+
+int SH_Max8614x_default_init(enum enAlgoMode paramAlgoMode) {
+	/*
+	 *  Desc: Initialization flow to get algorithm estimation results:
+	 *        1. initialize algorithm config struct
+	 *        2. enable data type to both raw sensor and algorithm data
+	 *        3. get input fifo size to learn fifo capacity
+	 *        4. set fifo threshold for mfio event frequency
+	 *        5. enable sensor to acquire ppg data
+	 *        6. enable accompanying accel sensor
+	 *        7. enable algorithm
+	 *        8. Sensor Hub now starts to write raw sensor/algorithm data to its data report FIFO which
+	 *           reports mfio event when data size determined by fifo threshold is written to report fifo
+	 *           data can be read by SH_Max8614x_data_report_execute function.
+	 *
+	 * */
+
+	int status;
+
+	// first initialize the global config struct
+	initialize_config_struct();
+	Max86140_SH_Status_Tracker_t *p_glbl_max8614x_status_track = get_config_struct();
+
+	// get input fifo size
+	status = sh_get_input_fifo_size(&p_glbl_max8614x_status_track->input_fifo_size);
+	if (status != SS_SUCCESS) {
+		__DBGMESSAGE("\r\n err=%d\r\n", COMM_GENERAL_ERROR)
+		__DBGMESSAGE("FAILED at line %d\n", __LINE__)
+		return COMM_GENERAL_ERROR;;
+	}
+
+	// enable both data stype
+	p_glbl_max8614x_status_track->data_type_enabled = SS_DATATYPE_BOTH;
+	p_glbl_max8614x_status_track->sample_count_enabled = false;
+	status = sh_set_data_type(p_glbl_max8614x_status_track->data_type_enabled,
+							  p_glbl_max8614x_status_track->sample_count_enabled);
+	if (status != 0) {
+		__DBGMESSAGE("\r\n err=%d\r\n", COMM_GENERAL_ERROR)
+		__DBGMESSAGE("FAILED at line %d\n", __LINE__)
+		return COMM_GENERAL_ERROR;
+	}
+
+	status = sh_set_fifo_thresh(5);
+	if (status != 0) {
+		__DBGMESSAGE("\r\n err=%d\r\n", COMM_GENERAL_ERROR)
+		__DBGMESSAGE("FAILED at line %d\n", __LINE__)
+		return COMM_GENERAL_ERROR;
+	}
+
+
+
+	status = sh_sensor_enable(SH_SENSORIDX_MAX8614X, SSMAX8614X_MODE1_DATASIZE, SH_INPUT_DATA_DIRECT_SENSOR);
+	if (status != 0) {
+		__DBGMESSAGE("\r\n err=%d\r\n",  COMM_GENERAL_ERROR)
+		__DBGMESSAGE("FAILED at line %d\n", __LINE__)
+		return COMM_GENERAL_ERROR;
+	}
+	p_glbl_max8614x_status_track->sensor_enabled_mode[SH_SENSORIDX_MAX8614X] = 0x01;
+
+#ifdef ENABLE_SENSOR_HUB_ACCEL
+	status = sh_sensor_enable(SH_SENSORIDX_ACCEL, SSACCEL_MODE1_DATASIZE, SH_INPUT_DATA_DIRECT_SENSOR);
+	if (status != SS_SUCCESS) {
+		__DBGMESSAGE("\r\n err=%d\r\n", COMM_GENERAL_ERROR)
+		__DBGMESSAGE("FAILED at line %d\n", __LINE__)
+	}
+	p_glbl_max8614x_status_track->sensor_data_from_host = false;
+	p_glbl_max8614x_status_track->sensor_enabled_mode[SH_SENSORIDX_ACCEL] = 0x01;
+#elif defined(USE_HOST_ACCEL)
+	CSTMR_SH_HostAccelerometerInitialize();
+	CSTMR_SH_HostAccelerometerSetDefaults();
+	status = CSTMR_SH_HostAccelerometerSetSampleRate(BMI160_SAMPLE_RATE);
+	if (status != 0) {
+		__DBGMESSAGE("Unable to set BMI160's sample rate\n",NULL)
+		__DBGMESSAGE("\r\n err=%d\r\n", COMM_GENERAL_ERROR)
+		__DBGMESSAGE("FAILED at line %d\n", __LINE__)
+		return status;
+	}
+
+	status = CSTMR_SH_HostAccelerometerEnableDataReadyInterrupt();
+	if(status != 0){
+		__DBGMESSAGE("Unable to enable BMI160 Interrupt, ret: %d\n", status)
+		return status;
+	}
+
+	status = sh_sensor_enable(SH_SENSORIDX_ACCEL, SSACCEL_MODE1_DATASIZE, SH_INPUT_DATA_FROM_HOST);
+	if (status != 0) {
+		__DBGMESSAGE("\r\n err=%d\r\n", COMM_GENERAL_ERROR)
+		__DBGMESSAGE("FAILED at line %d\n", __LINE__)
+		return status;
+	}
+	p_glbl_max8614x_status_track->sensor_data_from_host = true;
+	p_glbl_max8614x_status_track->sensor_enabled_mode[SH_SENSORIDX_ACCEL] = 0x01;
+#endif
+	status = SH_Max8614x_algo_init(paramAlgoMode);
+	if(status != 0) {
+		__DBGMESSAGE("AlgoInitFailed\r\n",NULL)
+	}
+
+	    __DBGMESSAGE("\r\n err=%d\r\n",  status)
+	return status;
+}
+
+void SH_Max8614x_stop() {
+
+	sh_disable_irq_mfioevent();
+	Max86140_SH_Status_Tracker_t *p_glbl_max8614x_status_track = get_config_struct();
+
+	for(int i = 0; i < SH_NUM_CURRENT_SENSORS; ++i) {
+		if(p_glbl_max8614x_status_track->sensor_enabled_mode[i]) {
+			p_glbl_max8614x_status_track->sensor_enabled_mode[i] = 0;
+			sh_sensor_disable(i);
+		}
+
+	}
+
+	for(int i = 0; i < SH_NUM_CURRENT_ALGOS; ++i) {
+		if(p_glbl_max8614x_status_track->algo_enabled_mode[i]) {
+			p_glbl_max8614x_status_track->algo_enabled_mode[i] = 0;
+			sh_disable_algo(i);
+		}
+	}
+
+	if(p_glbl_max8614x_status_track->sensor_data_from_host) {
+		CSTMR_SH_HostAccelerometerInitialize();
+		p_glbl_max8614x_status_track->sensor_data_from_host = 0;
+	}
+
+	sh_clear_mfio_event_flag();
+	sh_enable_irq_mfioevent();
+}
+
+
+
+
+
+
+/* **********************************************************************************************
+ * 																							   	*
+ *   					   COMMAND INTERFACE RELATED METHODS								 	*
+ *																								*
+ * **********************************************************************************************/
+
+
+
+//MYG: CHECK FOR STDIN WITH SSCANF < WHY THEY NEEDED PARSE_CMD?????   PAY ATTENTION: HEX AND/OR DECIMAL PARAMETER ENRTY!!!
+
+
+static int SH_Max8614x_set_singleparamcfg_(const char *cfg , const int algo_idx, const int cfg_idx , const int paramsz){
+	int status = -1;
+	uint32_t val;
+	if(paramsz == 1 || paramsz == 2) {
+    	if( sscanf(cfg, "%*s %*s %*s %10x", &val) == 1 ){
+    		uint8_t Temp[2] = { (uint8_t)((val >> 8) & 0xFF),  (uint8_t) (val & 0xFF) };
+    		status = sh_set_algo_cfg(algo_idx, cfg_idx , &Temp[2-paramsz], paramsz);
+    	}
+	}
+    return status;  // if command error return -1 if operational error return >0 error
+}
+
+
+static int SH_Max8614x_get_singleparamcfg_( const int algo_idx, const int cfg_idx ,const int paramsz, int *val){
+	// CMD: get_cfg spo2 samplerate
+
+	int tmp;
+	int status = -1;
+	uint8_t rxBuff[3]; // first byte is status 1/2 bytes cfgparam asked for.
+	if(paramsz == 1 || paramsz == 2) {
+	    status = sh_get_algo_cfg(algo_idx, cfg_idx, &rxBuff[0], paramsz+1);
+		if( status == 0){
+			tmp = (int)((rxBuff[1]<<(8*(paramsz-1))) + rxBuff[2]*(paramsz-1));  // MYG: CHECK IF TRUE!
+		}else
+			tmp = -1;
+	}else
+		tmp = -1;
+
+	*val = tmp;
+	return status;
+}
+
+
+
+
+
+int SH_Max8614x_set_ppgreg(const char *addr_value_args){
+
+	//CMD: set_reg ppgsensor 0xAA 0xAA
+	int addr,val,status;
+	if( sscanf(addr_value_args,"%*s %*s %4x %10x", &addr , &addr ) == 2 ){
+        status = sh_set_reg(SH_SENSORIDX_MAX8614X, (uint8_t) addr, (uint32_t) val, SSMAX8614X_REG_SIZE);
+        if(status == 0)
+        	SERIALOUT("OK \r\n");
+	}else
+		    SERIALOUT("ERR \r\n");
+
+    return status;
+}
+
+int SH_Max8614x_get_ppgreg(const char *addr_arg){
+
+	//CMD: get_reg ppgsensor 0xAA
+	int addr;
+	int status = -1;
+	uint32_t val;
+
+	if( sscanf(addr_arg,"%*s %*s %4x", &addr) == 1 ){
+		int status = sh_get_reg(SH_SENSORIDX_MAX8614X, (uint8_t) addr, &val);
+        if(status == 0)
+        	SERIALOUT("reg_val=%02X \r\n",val);
+	}else
+		    SERIALOUT("ERR \r\n");
+
+    return status;
+}
+
+int SH_Max8614x_self_test_ppg(const char *null_arg){
+
+	// MYG: mfio interaction needed!
+    return -1;
+}
+
+int SH_Max8614x_self_test_acc(const char *null_arg){
+	// MYG: mfio interaction needed!
+	return -1;
+}
+
+//************************************WHRM METHODS***********************************************/
+
+int SH_Max8614x_get_whrm_dataformat(const char *null_arg){
+
+	 SERIALOUT("\r\n  format={smpleCnt,16},"
+		"{grnCnt,20},{grn2Cnt,20},{accelX,14,3},{accelY,14,3},"
+		"{accelZ,14,3},{hr,12},{hrconf,8},{spo2,11,1},{activity,8} err=0\r\n" );
+      return 0;
+}
+
+int SH_Max8614x_measure_whrm(const char *null_arg){
+
+	 int status;
+	 SH_Max8614x_stop();
+	 status = SH_Max8614x_default_init(kAlgoModeHeartRate);
+	 if(status == 0)
+		 SERIALOUT("whrm started \r\n");
+	 else
+		 SERIALOUT("ERR");
+
+     return status;
+}
+
+int SH_Max8614x_set_whrm_aecusage(const char *onoff_arg){
+
+	int status = SH_Max8614x_set_singleparamcfg_( onoff_arg , SH_ALGOIDX_WHRM, SS_CFGIDX_WHRM_AEC_ENABLE , 1 );
+    if( status == 0)
+    	SERIALOUT("OK \r\n");
+    else {
+    	if( status == -1)
+    		SERIALOUT("CMDERR \r\n");
+    	else
+    		SERIALOUT("ERR \r\n");
+    }
+    return status;
+
+}
+
+int SH_Max8614x_get_whrm_aecusage(const char *null_arg){
+
+	int val;
+	int status =  SH_Max8614x_get_singleparamcfg_( SH_ALGOIDX_WHRM, SS_CFGIDX_WHRM_AEC_ENABLE, 1 , &val);
+    if(val != -1)
+    	SERIALOUT("whrm_aec_usage= %d", val);
+    else
+    	SERIALOUT("ERR \r\n");
+
+    return status;
+
+}
+
+int SH_Max8614x_set_whrm_scdusage(const char *onoff_arg){
+
+	int status = SH_Max8614x_set_singleparamcfg_( onoff_arg , SH_ALGOIDX_WHRM, SS_CFGIDX_WHRM_SCD_ENABLE, 1 );
+    if( status == 0)
+    	SERIALOUT("OK \r\n");
+    else {
+    	if( status == -1)
+    		SERIALOUT("CMDERR \r\n");
+    	else
+    		SERIALOUT("ERR \r\n");
+    }
+    return status;
+
+}
+
+
+int SH_Max8614x_get_whrm_scdusage(const char *null_arg){
+
+	int val;
+	int status =  SH_Max8614x_get_singleparamcfg_( SH_ALGOIDX_WHRM, SS_CFGIDX_WHRM_SCD_ENABLE, 1 , &val);
+    if(val != -1)
+    	SERIALOUT("whrm_scd_usage= %d", val);
+    else
+    	SERIALOUT("ERR \r\n");
+
+    return status;
+
+}
+
+int SH_Max8614x_set_whrm_scdadjperiod(const char *period_arg){
+
+	int status = SH_Max8614x_set_singleparamcfg_(period_arg , SH_ALGOIDX_WHRM , SS_CFGIDX_WHRM_ADJ_TARGET_PD_CURRENT_PERIOD , 2);
+    if( status == 0)
+    	SERIALOUT("OK \r\n");
+    else {
+    	if( status == -1)
+    		SERIALOUT("CMDERR \r\n");
+    	else
+    		SERIALOUT("ERR \r\n");
+    }
+    return status;
+}
+
+int SH_Max8614x_get_whrm_scdadjperiod(const char *null_arg){
+
+	int val;
+	int status =  SH_Max8614x_get_singleparamcfg_( SH_ALGOIDX_WHRM, SS_CFGIDX_WHRM_ADJ_TARGET_PD_CURRENT_PERIOD, 2, &val);
+    if(val != -1)
+    	SERIALOUT("whrm_scd_adjperiod= 0x%x", val);
+    else
+    	SERIALOUT("ERR \r\n");
+
+    return status;
+
+}
+
+int SH_Max8614x_set_whrm_scddebouncewin(const char *dwindow_arg){
+
+	int status = SH_Max8614x_set_singleparamcfg_(dwindow_arg , SH_ALGOIDX_WHRM , SS_CFGIDX_WHRM_SCD_DEBOUNCE_WINDOW , 2);
+    if( status == 0)
+    	SERIALOUT("OK \r\n");
+    else {
+    	if( status == -1)
+    		SERIALOUT("CMDERR \r\n");
+    	else
+    		SERIALOUT("ERR \r\n");
+    }
+    return status;
+
+}
+int SH_Max8614x_get_whrm_scddebouncewin(const char *null_arg){
+
+	int val;
+	int status =  SH_Max8614x_get_singleparamcfg_( SH_ALGOIDX_WHRM, SS_CFGIDX_WHRM_SCD_DEBOUNCE_WINDOW , 2, &val);
+    if(val != -1)
+    	SERIALOUT("whrm_scd_debouncewin= 0x%x", val);
+    else
+    	SERIALOUT("ERR \r\n");
+
+    return status;
+
+}
+
+int SH_Max8614x_set_whrm_motionthresh(const char *motion_arg){
+
+	int status = SH_Max8614x_set_singleparamcfg_(motion_arg , SH_ALGOIDX_WHRM , SS_CFGIDX_WHRM_MOTION_MAG_THRESHOLD , 2);
+    if( status == 0)
+    	SERIALOUT("OK \r\n");
+    else {
+    	if( status == -1)
+    		SERIALOUT("CMDERR \r\n");
+    	else
+    		SERIALOUT("ERR \r\n");
+    }
+    return status;
+
+}
+
+int SH_Max8614x_get_whrm_motionthresh(const char *null_arg){
+
+	int val;
+	int status =  SH_Max8614x_get_singleparamcfg_( SH_ALGOIDX_WHRM, SS_CFGIDX_WHRM_MOTION_MAG_THRESHOLD , 2, &val);
+    if(val != -1)
+    	SERIALOUT("whrm_motion_threshold= 0x%x", val);
+    else
+    	SERIALOUT("ERR \r\n");
+
+    return status;
+
+}
+
+int SH_Max8614x_set_whrm_minpdiodecurr(const char *curr_arg){
+
+	int status = SH_Max8614x_set_singleparamcfg_(curr_arg, SH_ALGOIDX_WHRM , SS_CFGIDX_WHRM_MIN_PD_CURRENT , 2);
+    if( status == 0)
+    	SERIALOUT("OK \r\n");
+    else {
+    	if( status == -1)
+    		SERIALOUT("CMDERR \r\n");
+    	else
+    		SERIALOUT("ERR \r\n");
+    }
+    return status;
+
+}
+
+int SH_Max8614x_get_whrm_minpdiodecurr(const char *null_arg){
+
+	int val;
+	int status =  SH_Max8614x_get_singleparamcfg_( SH_ALGOIDX_WHRM, SS_CFGIDX_WHRM_MIN_PD_CURRENT , 2, &val);
+    if(val != -1)
+    	SERIALOUT("whrm_currentrange= %d", val);  // MYG: CHECKIF EXPRESSION IS TRUE!
+    else
+    	SERIALOUT("ERR \r\n");
+
+    return status;
+
+}
+
+int SH_Max8614x_set_whrm_pdiodeconfig(const char *cfg_arg){
+
+	int status = SH_Max8614x_set_singleparamcfg_( cfg_arg , SH_ALGOIDX_WHRM, SS_CFGIDX_WHRM_PD_CONFIG , 1 );
+    if( status == 0)
+    	SERIALOUT("OK \r\n");
+    else {
+    	if( status == -1)
+    		SERIALOUT("CMDERR \r\n");
+    	else
+    		SERIALOUT("ERR \r\n");
+    }
+    return status;
+
+}
+
+int SH_Max8614x_get_whrm_pdiodeconfig(const char *null_arg){
+
+	int val;
+	int status =  SH_Max8614x_get_singleparamcfg_( SH_ALGOIDX_WHRM, SS_CFGIDX_WHRM_PD_CONFIG, 1 , &val);
+    if(val != -1)
+    	SERIALOUT("whrm_pdiode_config= %d", val);
+    else
+    	SERIALOUT("ERR \r\n");
+
+    return status;
+
+}
+
+int SH_Max8614x_stop_acquisition(const char *null_arg){
+	      SH_Max8614x_stop();
+}
+
+
+
+/*FOR THIS DEMO PURPOSE*/
+int Max8614x_Set_WSPO2Mode(int mode){
+
+	uint8_t Temp[1] = { (uint8_t)(mode) };
+	int status = sh_set_algo_cfg(SH_ALGOIDX_WSPO2, SS_CFGIDX_WSPO2_ALGO_MODE , &Temp[0], 1);
+    return status;
+
+}
+
+
+#if defined(RAW_DATA_ONLY)
+
+int SH_Max8614x_disable_whrm (const char *onoff_arg){
+
+	int status = sh_disable_algo(SH_ALGOIDX_WHRM);
+    if( status == 0)
+    	SERIALOUT("OK \r\n");
+    else {
+    	SERIALOUT("ERR \r\n");
+    }
+    return status;
+
+}
+
+int SH_Max8614x_enable_pureraw(const char *onoff_arg){
+
+	int status;
+
+	status = sh_disable_algo(SH_ALGOIDX_WHRM);
+	wait_ms(500);
+	status = sh_set_data_type(SS_DATATYPE_RAW ,	false);
+	status = sh_set_fifo_thresh(5);
+	status = sh_sensor_enable(SH_SENSORIDX_MAX8614X, SSMAX8614X_MODE1_DATASIZE, SH_INPUT_DATA_DIRECT_SENSOR);
+
+	if( status == 0)
+    	SERIALOUT("OK \r\n");
+    else {
+    	SERIALOUT("ERR \r\n");
+    }
+    return status;
+
+}
+#endif
+
+
+
+
+
+
+
+
+
+
+
+
+