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/*
* Copyright (c) 2015, Freescale Semiconductor, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* o Redistributions of source code must retain the above copyright notice, this list
* of conditions and the following disclaimer.
*
* o Redistributions in binary form must reproduce the above copyright notice, this
* list of conditions and the following disclaimer in the documentation and/or
* other materials provided with the distribution.
*
* o Neither the name of Freescale Semiconductor, Inc. nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdio.h>
#include "board.h"
#include "gpio_pins.h"
#include "gpio_imx.h"
#include "gpio_ctrl.h"
#include "debug_console_imx.h"
#include "rpmsg/rpmsg_rtos.h"
#include "FreeRTOS.h"
#include "task.h"
#include "gpt.h"
#include "semphr.h"
#include "string.h"
#include "mu_imx.h"
#include "rdc_semaphore.h"
////////////////////////////////////////////////////////////////////////////////
// Definitions
////////////////////////////////////////////////////////////////////////////////
#define APP_TASK_STACK_SIZE 256
/*
* APP decided interrupt priority
*/
#define APP_MU_IRQ_PRIORITY 3
/******************************************************************************
*
* Function Name: ToggleTask
* Comments: this task is used to turn toggle on/off LED.
*
******************************************************************************/
static void StrEchoTask(void *pvParameters)
{
bool key1PressCount = 0;
bool key1PressCountOld = 0;
bool key2PressCount = 0;
bool key2PressCountOld = 0;
bool sendNewData = 0;
int result;
struct remote_device *rdev = NULL;
struct rpmsg_channel *app_chnl = NULL;
char str_buffer[256] ;
int len;
void *rx_buf;
void *tx_buf;
unsigned long size;
unsigned long src;
/* Print the initial banner */
PRINTF("\r\nRPMSG String Echo FreeRTOS RTOS API Demo...\r\n");
/* RPMSG Init as REMOTE */
PRINTF("RPMSG Init as Remote\r\n");
result = rpmsg_rtos_init(0 /*REMOTE_CPU_ID*/, &rdev, RPMSG_MASTER, &app_chnl);
assert(result == 0);
PRINTF("Name service handshake is done, M4 has setup a rpmsg channel [%d ---> %d]\r\n", app_chnl->src, app_chnl->dst);
/* Initialize enviroments and led status */
key1PressCount = GPIO_Ctrl_GetKey(BOARD_GPIO_SWITCH1_CONFIG);
key1PressCountOld = key1PressCount;
GPIO_Ctrl_WriteLed(BOARD_GPIO_LED1_CONFIG, BOARD_GPIO_LED1_RDC_PDAP, key1PressCount);
key2PressCount = GPIO_Ctrl_GetKey(BOARD_GPIO_SWITCH2_CONFIG);
key2PressCountOld = key2PressCount;
GPIO_Ctrl_WriteLed(BOARD_GPIO_LED2_CONFIG, BOARD_GPIO_LED2_RDC_PDAP, key2PressCount);
sendNewData = 1;
PRINTF("================== RPMSG DONE===================\n\r");
while(true)
{
/* wait for user change button leve */
key1PressCount = GPIO_Ctrl_GetKey(BOARD_GPIO_SWITCH1_CONFIG);
key2PressCount = GPIO_Ctrl_GetKey(BOARD_GPIO_SWITCH2_CONFIG);
/* Get RPMsg rx buffer with message */
result = rpmsg_rtos_recv_nocopy(app_chnl->rp_ept, &rx_buf, &len, &src, 0);
/* Copy string from RPMsg rx buffer */
assert(len < sizeof(str_buffer));
memcpy(str_buffer, rx_buf, len);
str_buffer[len] = 0; /* End string by '\0' */
/*Parse MSG*/
char * pch1;
char * pch2;
pch1 = strstr (str_buffer, "Led");
if(pch1)
{
pch1 = pch1 + 3;
pch2 = pch1 + 2;
/*What LED 1 or 2*/
if(*pch1 == '1')
{
/* What Value 1 or 0*/
if(*pch2 == '1')
{
GPIO_Ctrl_WriteLed(BOARD_GPIO_LED1_CONFIG, BOARD_GPIO_LED1_RDC_PDAP, 1);
}
else
{
GPIO_Ctrl_WriteLed(BOARD_GPIO_LED1_CONFIG, BOARD_GPIO_LED1_RDC_PDAP, 0);
}
}
if(*pch1 == '2')
{
/* What Value 1 or 0*/
if(*pch2 == '1')
{
GPIO_Ctrl_WriteLed(BOARD_GPIO_LED2_CONFIG, BOARD_GPIO_LED2_RDC_PDAP, 1);
}
else
{
GPIO_Ctrl_WriteLed(BOARD_GPIO_LED2_CONFIG, BOARD_GPIO_LED2_RDC_PDAP, 0);
}
}
}
/* free rx buffer */
result = rpmsg_rtos_recv_nocopy_free(app_chnl->rp_ept, rx_buf);
/* If button change, than print and update LED */
if(key1PressCount != key1PressCountOld)
{
key1PressCountOld = key1PressCount;
/* update led status */
GPIO_Ctrl_WriteLed(BOARD_GPIO_LED1_CONFIG, BOARD_GPIO_LED1_RDC_PDAP, key1PressCount);
sendNewData = 1;
}
/* If button change, than print and update LED */
if(key2PressCount != key2PressCountOld)
{
/* update led status */
key2PressCountOld = key2PressCount;
GPIO_Ctrl_WriteLed(BOARD_GPIO_LED2_CONFIG, BOARD_GPIO_LED2_RDC_PDAP, key2PressCount);
sendNewData = 1;
}
/* Switch changed*/
if(sendNewData == 1)
{
sendNewData = 0;
memset(str_buffer, 0, sizeof(str_buffer));
PRINTF("================== key1PressCount = %d ==================\n\r", key1PressCount);
PRINTF("================== key2PressCount = %d ==================\n\r", key2PressCount);
/* Create message */
len = snprintf(str_buffer, sizeof(str_buffer),"KEY1=%d; KEY2=%d\n",
key1PressCount, key2PressCount);
/* Release tx buffer */
tx_buf = rpmsg_rtos_alloc_tx_buffer(app_chnl->rp_ept, &size);
if(tx_buf == NULL)
{
PRINTF("\r\n ERROR = rpmsg_rtos_alloc_tx_buffer\r\n");
continue;
}
/* Copy string to RPMsg tx buffer */
memcpy(tx_buf, str_buffer, len);
/* Send message... */
result = rpmsg_rtos_send_nocopy(app_chnl->rp_ept, tx_buf, len, app_chnl->dst);
if(result != 0)
{
PRINTF("\r\n ERROR = rpmsg_rtos_send_nocopy\r\n");
}
assert(result == 0);
}
}
}
/*
* MU Interrrupt ISR
*/
void BOARD_MU_HANDLER(void)
{
/*
* calls into rpmsg_handler provided by middleware
*/
rpmsg_handler();
}
/******************************************************************************
*
* Function Name: main
* Comments: Hello World Example with GPIO.
* This example include:
* Configure BUTTON1 as GPIO functionality
* and check the button's state(pressed or released). According to the Button
* status, copy it to the LED
*
******************************************************************************/
int main(void)
{
/* hardware initialiize, include RDC, IOMUX, Uart debug initialize */
hardware_init();
PRINTF("\n\r\n\r\n\r");
PRINTF("=======================================================\n\r");
PRINTF("============ GPIO FreeRtos and MCC Example ============\n\r");
PRINTF("========== Play with Led and Button and MCC ===========\n\r");
PRINTF("=======================================================\n\r");
/* GPIO module initialize, configure "LED" as output and button as interrupt mode. */
GPIO_Ctrl_Init();
/*
* Prepare for the MU Interrupt
* MU must be initialized before rpmsg init is called
*/
MU_Init(BOARD_MU_BASE_ADDR);
NVIC_SetPriority(BOARD_MU_IRQ_NUM, APP_MU_IRQ_PRIORITY);
NVIC_EnableIRQ(BOARD_MU_IRQ_NUM);
/* Create a demo task. */
xTaskCreate(StrEchoTask, "String Echo Task", APP_TASK_STACK_SIZE,
NULL, tskIDLE_PRIORITY+1, NULL);
/* Start FreeRTOS scheduler. */
vTaskStartScheduler();
/* Should never reach this point. */
while (true);
}
/*******************************************************************************
* EOF
******************************************************************************/
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