318 lines
9.7 KiB
C
318 lines
9.7 KiB
C
/*
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* Copyright 2020-2021 NXP
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* All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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/* Board includes */
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#include "pin_mux.h"
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#include "board.h"
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#include "main.h"
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#include "cmd.h"
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#include "fsl_sd.h"
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#include "ff.h"
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#include "diskio.h"
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#include "fsl_sd_disk.h"
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#include "sdmmc_config.h"
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#include "fsl_debug_console.h"
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#include <stdbool.h>
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#include "fsl_sysctl.h"
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#include "fsl_codec_common.h"
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#include "fsl_wm8904.h"
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#include "fsl_codec_adapter.h"
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#include "fsl_power.h"
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/*******************************************************************************
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* Definitions
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******************************************************************************/
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#include "app_definitions.h"
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#define SHELL_TASK_STACK_SIZE (1024)
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#define SDCARD_TASK_STACK_SIZE (512)
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/*******************************************************************************
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* Prototypes
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******************************************************************************/
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int BOARD_CODEC_Init(void);
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static void APP_SDCARD_DetectCallBack(bool isInserted, void *userData);
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/*******************************************************************************
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* Variables
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******************************************************************************/
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codec_handle_t codecHandle = {0};
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wm8904_config_t wm8904Config = {
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.i2cConfig = {.codecI2CInstance = BOARD_CODEC_I2C_INSTANCE, .codecI2CSourceClock = BOARD_CODEC_I2C_CLOCK_FREQ},
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.recordSource = kWM8904_RecordSourceLineInput,
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.recordChannelLeft = kWM8904_RecordChannelLeft2,
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.recordChannelRight = kWM8904_RecordChannelRight2,
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.playSource = kWM8904_PlaySourceDAC,
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.slaveAddress = WM8904_I2C_ADDRESS,
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.protocol = kWM8904_ProtocolI2S,
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.format = {.sampleRate = kWM8904_SampleRate48kHz, .bitWidth = kWM8904_BitWidth16},
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.mclk_HZ = DEMO_I2S_MASTER_CLOCK_FREQUENCY,
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.master = false,
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};
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codec_config_t boardCodecConfig = {.codecDevType = kCODEC_WM8904, .codecDevConfig = &wm8904Config};
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static app_handle_t app;
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/*******************************************************************************
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* Code
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******************************************************************************/
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int BOARD_CODEC_Init(void)
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{
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CODEC_Init(&codecHandle, &boardCodecConfig);
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/* Invert the DAC data in order to output signal with correct polarity - set DACL_DATINV and DACR_DATINV = 1 */
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WM8904_WriteRegister((wm8904_handle_t *)codecHandle.codecDevHandle, WM8904_AUDIO_IF_0, 0x1850);
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/* Initial volume kept low for hearing safety. */
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CODEC_SetVolume(&codecHandle, kCODEC_PlayChannelHeadphoneLeft | kCODEC_PlayChannelHeadphoneRight, DEMO_VOLUME);
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return 0;
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}
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void BOARD_InitSysctrl(void)
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{
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SYSCTL_Init(SYSCTL);
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/* select signal source for share set */
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SYSCTL_SetShareSignalSrc(SYSCTL, kSYSCTL_ShareSet0, kSYSCTL_SharedCtrlSignalSCK, kSYSCTL_Flexcomm7);
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SYSCTL_SetShareSignalSrc(SYSCTL, kSYSCTL_ShareSet0, kSYSCTL_SharedCtrlSignalWS, kSYSCTL_Flexcomm7);
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/* select share set for special flexcomm signal */
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SYSCTL_SetShareSet(SYSCTL, kSYSCTL_Flexcomm7, kSYSCTL_FlexcommSignalSCK, kSYSCTL_ShareSet0);
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SYSCTL_SetShareSet(SYSCTL, kSYSCTL_Flexcomm7, kSYSCTL_FlexcommSignalWS, kSYSCTL_ShareSet0);
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SYSCTL_SetShareSet(SYSCTL, kSYSCTL_Flexcomm6, kSYSCTL_FlexcommSignalSCK, kSYSCTL_ShareSet0);
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SYSCTL_SetShareSet(SYSCTL, kSYSCTL_Flexcomm6, kSYSCTL_FlexcommSignalWS, kSYSCTL_ShareSet0);
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}
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static void APP_SDCARD_DetectCallBack(bool isInserted, void *userData)
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{
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app_handle_t *app = (app_handle_t *)userData;
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app->sdcardInserted = isInserted;
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xSemaphoreGiveFromISR(app->sdcardSem, NULL);
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}
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void APP_SDCARD_Task(void *param)
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{
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const TCHAR driverNumberBuffer[3U] = {SDDISK + '0', ':', '/'};
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FRESULT error;
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app_handle_t *app = (app_handle_t *)param;
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app->sdcardSem = xSemaphoreCreateBinary();
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BOARD_SD_Config(&g_sd, APP_SDCARD_DetectCallBack, BOARD_SDMMC_SD_HOST_IRQ_PRIORITY, app);
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PRINTF("[APP_SDCARD_Task] start\r\n");
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/* SD host init function */
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if (SD_HostInit(&g_sd) != kStatus_Success)
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{
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PRINTF("[APP_SDCARD_Task] SD host init failed.\r\n");
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vTaskSuspend(NULL);
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}
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/* Small delay for SD card detection logic to process */
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vTaskDelay(100 / portTICK_PERIOD_MS);
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while (1)
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{
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/* Block waiting for SDcard detect interrupt */
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xSemaphoreTake(app->sdcardSem, portMAX_DELAY);
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if (app->sdcardInserted != app->sdcardInsertedPrev)
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{
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app->sdcardInsertedPrev = app->sdcardInserted;
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SD_SetCardPower(&g_sd, false);
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if (app->sdcardInserted)
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{
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/* power on the card */
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SD_SetCardPower(&g_sd, true);
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if (f_mount(&app->fileSystem, driverNumberBuffer, 0U))
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{
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PRINTF("[APP_SDCARD_Task] Mount volume failed.\r\n");
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continue;
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}
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#if (FF_FS_RPATH >= 2U)
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error = f_chdrive((char const *)&driverNumberBuffer[0U]);
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if (error)
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{
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PRINTF("[APP_SDCARD_Task] Change drive failed.\r\n");
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continue;
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}
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#endif
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PRINTF("[APP_SDCARD_Task] SD card drive mounted\r\n");
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xSemaphoreGive(app->sdcardSem);
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}
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}
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}
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}
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void APP_Shell_Task(void *param)
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{
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PRINTF("[APP_Shell_Task] start\r\n");
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/* Handle shell commands. */
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shellCmd();
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while (1)
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;
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;
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}
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int main(void)
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{
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int ret;
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/* set BOD VBAT level to 1.65V */
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POWER_SetBodVbatLevel(kPOWER_BodVbatLevel1650mv, kPOWER_BodHystLevel50mv, false);
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CLOCK_EnableClock(kCLOCK_InputMux);
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CLOCK_EnableClock(kCLOCK_Iocon);
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CLOCK_EnableClock(kCLOCK_Gpio0);
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CLOCK_EnableClock(kCLOCK_Gpio1);
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/* USART0 clock */
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CLOCK_AttachClk(BOARD_DEBUG_UART_CLK_ATTACH);
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/* I2C clock */
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CLOCK_AttachClk(kFRO12M_to_FLEXCOMM4);
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PMC->PDRUNCFGCLR0 |= PMC_PDRUNCFG0_PDEN_XTAL32M_MASK; /*!< Ensure XTAL16M is on */
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PMC->PDRUNCFGCLR0 |= PMC_PDRUNCFG0_PDEN_LDOXO32M_MASK; /*!< Ensure XTAL16M is on */
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SYSCON->CLOCK_CTRL |= SYSCON_CLOCK_CTRL_CLKIN_ENA_MASK; /*!< Ensure CLK_IN is on */
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ANACTRL->XO32M_CTRL |= ANACTRL_XO32M_CTRL_ENABLE_SYSTEM_CLK_OUT_MASK;
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/*!< Switch PLL0 clock source selector to XTAL16M */
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CLOCK_AttachClk(kEXT_CLK_to_PLL0);
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const pll_setup_t pll0Setup = {
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.pllctrl = SYSCON_PLL0CTRL_CLKEN_MASK | SYSCON_PLL0CTRL_SELI(8U) | SYSCON_PLL0CTRL_SELP(31U),
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.pllndec = SYSCON_PLL0NDEC_NDIV(125U),
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.pllpdec = SYSCON_PLL0PDEC_PDIV(8U),
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.pllsscg = {0x0U, (SYSCON_PLL0SSCG1_MDIV_EXT(3072U) | SYSCON_PLL0SSCG1_SEL_EXT_MASK)},
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.pllRate = 24576000U,
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.flags = PLL_SETUPFLAG_WAITLOCK};
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/*!< Configure PLL to the desired values */
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CLOCK_SetPLL0Freq(&pll0Setup);
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CLOCK_SetClkDiv(kCLOCK_DivPll0Clk, 0U, true);
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CLOCK_SetClkDiv(kCLOCK_DivPll0Clk, 1U, false);
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/* I2S clocks */
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CLOCK_AttachClk(kPLL0_DIV_to_FLEXCOMM6);
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CLOCK_AttachClk(kPLL0_DIV_to_FLEXCOMM7);
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/* Attach PLL clock to MCLK for I2S, no divider */
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CLOCK_AttachClk(kPLL0_to_MCLK);
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SYSCON->MCLKDIV = SYSCON_MCLKDIV_DIV(0U);
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SYSCON->MCLKIO = 1U;
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/* reset FLEXCOMM for I2C */
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RESET_PeripheralReset(kFC4_RST_SHIFT_RSTn);
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/* reset FLEXCOMM for DMA0 */
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RESET_PeripheralReset(kDMA0_RST_SHIFT_RSTn);
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/* reset FLEXCOMM for I2S */
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RESET_PeripheralReset(kFC6_RST_SHIFT_RSTn);
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RESET_PeripheralReset(kFC7_RST_SHIFT_RSTn);
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/* reset NVIC for FLEXCOMM6 and FLEXCOMM7 */
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NVIC_ClearPendingIRQ(FLEXCOMM6_IRQn);
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NVIC_ClearPendingIRQ(FLEXCOMM7_IRQn);
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/* Enable interrupts for I2S */
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EnableIRQ(FLEXCOMM6_IRQn);
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EnableIRQ(FLEXCOMM7_IRQn);
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/* Initialize the rest */
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BOARD_InitPins();
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BOARD_BootClockPLL1_150M();
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BOARD_InitDebugConsole();
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BOARD_InitSysctrl();
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PRINTF("\r\n");
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PRINTF("*******************************\r\n");
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PRINTF("Maestro audio record demo start\r\n");
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PRINTF("*******************************\r\n");
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PRINTF("\r\n");
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ret = BOARD_CODEC_Init();
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if (ret)
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{
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PRINTF("CODEC_Init failed\r\n");
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return -1;
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}
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if (xTaskCreate(APP_SDCARD_Task, "SDCard Task", SDCARD_TASK_STACK_SIZE, &app, configMAX_PRIORITIES - 4, NULL) !=
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pdPASS)
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{
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PRINTF("\r\nFailed to create application task\r\n");
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while (1)
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;
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}
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/* Set shell command task priority = 1 */
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if (xTaskCreate(APP_Shell_Task, "Shell Task", SHELL_TASK_STACK_SIZE, &app, configMAX_PRIORITIES - 5,
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&app.shell_task_handle) != pdPASS)
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{
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PRINTF("\r\nFailed to create application task\r\n");
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while (1)
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;
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}
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/* Run RTOS */
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vTaskStartScheduler();
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/* Should not reach this statement */
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return 0;
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}
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/**
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* @brief Loop forever if stack overflow is detected.
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*
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* If configCHECK_FOR_STACK_OVERFLOW is set to 1,
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* this hook provides a location for applications to
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* define a response to a stack overflow.
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*
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* Use this hook to help identify that a stack overflow
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* has occurred.
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*
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*/
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void vApplicationStackOverflowHook(TaskHandle_t xTask, char *pcTaskName)
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{
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portDISABLE_INTERRUPTS();
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/* Loop forever */
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for (;;)
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;
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}
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/**
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* @brief Warn user if pvPortMalloc fails.
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*
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* Called if a call to pvPortMalloc() fails because there is insufficient
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* free memory available in the FreeRTOS heap. pvPortMalloc() is called
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* internally by FreeRTOS API functions that create tasks, queues, software
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* timers, and semaphores. The size of the FreeRTOS heap is set by the
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* configTOTAL_HEAP_SIZE configuration constant in FreeRTOSConfig.h.
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*
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*/
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void vApplicationMallocFailedHook()
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{
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PRINTF(("\r\nERROR: Malloc failed to allocate memory\r\n"));
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/* Loop forever */
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for (;;)
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;
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}
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