diff options
Diffstat (limited to 'examples/imx7_colibri_m4/demo_apps/rpmsg/gpio_freertos/main.c')
| -rw-r--r-- | examples/imx7_colibri_m4/demo_apps/rpmsg/gpio_freertos/main.c | 263 |
1 files changed, 263 insertions, 0 deletions
diff --git a/examples/imx7_colibri_m4/demo_apps/rpmsg/gpio_freertos/main.c b/examples/imx7_colibri_m4/demo_apps/rpmsg/gpio_freertos/main.c new file mode 100644 index 0000000..ee5db19 --- /dev/null +++ b/examples/imx7_colibri_m4/demo_apps/rpmsg/gpio_freertos/main.c @@ -0,0 +1,263 @@ +/* + * 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 + ******************************************************************************/ |