MCUXpresso_MIMXRT1052xxxxB/boards/evkbimxrt1050/audio_examples/maestro_usb_speaker/main.c

/*
 * Copyright 2021 NXP
 * All rights reserved.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

/* Board includes */
#include "pin_mux.h"
#include "clock_config.h"
#include "board.h"
#include "main.h"
#include "cmd.h"

#include "audio_speaker.h"

#include "fsl_debug_console.h"

#include "usb_phy.h"
#include "fsl_gpio.h"
#include "fsl_iomuxc.h"
#include "fsl_dmamux.h"
#include "fsl_codec_common.h"
#include "fsl_wm8960.h"
#include "app_definitions.h"
/*******************************************************************************
 * Definitions
 ******************************************************************************/
#define APP_TASK_STACK_SIZE (8 * 1024)

/*******************************************************************************
 * Prototypes
 ******************************************************************************/

int BOARD_CODEC_Init(void);

/*******************************************************************************
 * Variables
 ******************************************************************************/
codec_handle_t codecHandle   = {0};
wm8960_config_t wm8960Config = {
    .i2cConfig = {.codecI2CInstance = BOARD_CODEC_I2C_INSTANCE, .codecI2CSourceClock = BOARD_CODEC_I2C_CLOCK_FREQ},
    .route     = kWM8960_RoutePlaybackandRecord,
    .leftInputSource  = kWM8960_InputDifferentialMicInput3,
    .rightInputSource = kWM8960_InputDifferentialMicInput2,
    .playSource       = kWM8960_PlaySourceDAC,
    .slaveAddress     = WM8960_I2C_ADDR,
    .bus              = kWM8960_BusI2S,
    .format           = {.mclk_HZ    = 12288000U,
               .sampleRate = kWM8960_AudioSampleRate48KHz,
               .bitWidth   = kWM8960_AudioBitWidth16bit},
    .master_slave     = false,
};
codec_config_t boardCodecConfig = {.codecDevType = kCODEC_WM8960, .codecDevConfig = &wm8960Config};

static app_handle_t app;

/*******************************************************************************
 * Code
 ******************************************************************************/

/*
 * AUDIO PLL setting: Frequency = Fref * (DIV_SELECT + NUM / DENOM)
 *                              = 24 * (30 + 66/625)
 *                              = 722.5344 MHz
 */
const clock_audio_pll_config_t audioPllConfig = {
    .loopDivider = 30,  /* PLL loop divider. Valid range for DIV_SELECT divider value: 27~54. */
    .postDivider = 1,   /* Divider after the PLL, should only be 1, 2, 4, 8, 16. */
    .numerator   = 66,  /* 30 bit numerator of fractional loop divider. */
    .denominator = 625, /* 30 bit denominator of fractional loop divider */
};

void BOARD_EnableSaiMclkOutput(bool enable)
{
    if (enable)
    {
        IOMUXC_GPR->GPR1 |= IOMUXC_GPR_GPR1_SAI1_MCLK_DIR_MASK;
    }
    else
    {
        IOMUXC_GPR->GPR1 &= (~IOMUXC_GPR_GPR1_SAI1_MCLK_DIR_MASK);
    }
}

int BOARD_CODEC_Init(void)
{
    CODEC_Init(&codecHandle, &boardCodecConfig);

    /* Initial volume kept low for hearing safety. */
    CODEC_SetVolume(&codecHandle, kCODEC_PlayChannelHeadphoneLeft | kCODEC_PlayChannelHeadphoneRight, 50);

    return 0;
}

void USB_DeviceClockInit(void)
{
    usb_phy_config_struct_t phyConfig = {
        BOARD_USB_PHY_D_CAL,
        BOARD_USB_PHY_TXCAL45DP,
        BOARD_USB_PHY_TXCAL45DM,
    };

    if (CONTROLLER_ID == kUSB_ControllerEhci0)
    {
        CLOCK_EnableUsbhs0PhyPllClock(kCLOCK_Usbphy480M, 480000000U);
        CLOCK_EnableUsbhs0Clock(kCLOCK_Usb480M, 480000000U);
    }
    else
    {
        CLOCK_EnableUsbhs1PhyPllClock(kCLOCK_Usbphy480M, 480000000U);
        CLOCK_EnableUsbhs1Clock(kCLOCK_Usb480M, 480000000U);
    }
    USB_EhciPhyInit(CONTROLLER_ID, BOARD_XTAL0_CLK_HZ, &phyConfig);
}



void handleShellMessage(void *arg)
{
    /* Wait for response message to be processed before returning to shell. */
    ulTaskNotifyTake(pdTRUE, portMAX_DELAY);
}

void APP_Shell_Task(void *param)
{
    PRINTF("[APP_Shell_Task] start\r\n");

    /* Handle shell commands.  Return when 'exit' command entered. */
    shellCmd(handleShellMessage, param);
    vTaskSuspend(NULL);
    while (1)
        ;
}

int main(void)
{
    int ret;

    BOARD_ConfigMPU();
    BOARD_InitBootPins();
    BOARD_BootClockRUN();
    /* 1. Init SAI clock .*/
    CLOCK_InitAudioPll(&audioPllConfig);
    BOARD_InitDebugConsole();

    /*Clock setting for LPI2C*/
    CLOCK_SetMux(kCLOCK_Lpi2cMux, BOARD_CODEC_I2C_CLOCK_SOURCE_SELECT);
    CLOCK_SetDiv(kCLOCK_Lpi2cDiv, BOARD_CODEC_I2C_CLOCK_SOURCE_DIVIDER);

    CLOCK_SetMux(kCLOCK_Sai1Mux, DEMO_SAI1_CLOCK_SOURCE_SELECT);
    CLOCK_SetDiv(kCLOCK_Sai1PreDiv, DEMO_SAI1_CLOCK_SOURCE_PRE_DIVIDER);
    CLOCK_SetDiv(kCLOCK_Sai1Div, DEMO_SAI1_CLOCK_SOURCE_DIVIDER);

    /*Enable MCLK clock*/
    BOARD_EnableSaiMclkOutput(true);

    DMAMUX_Init(DEMO_DMAMUX);
    DMAMUX_SetSource(DEMO_DMAMUX, DEMO_TX_CHANNEL, (uint8_t)DEMO_SAI_TX_SOURCE);
    DMAMUX_EnableChannel(DEMO_DMAMUX, DEMO_TX_CHANNEL);

    /*Clock setting for USB*/
    USB_DeviceClockInit();

    PRINTF("\r\n");
    PRINTF("**********************************************\r\n");
    PRINTF("Maestro audio USB speaker solutions demo start\r\n");
    PRINTF("**********************************************\r\n");
    PRINTF("\r\n");

    /* Initialize OSA*/
    OSA_Init();

    ret = BOARD_CODEC_Init();
    if (ret)
    {
        PRINTF("CODEC_Init failed\r\n");
        return -1;
    }

    /* USB speaker initialization */
    USB_DeviceApplicationInit();

    /* Set shell command task priority = 4 */
    if (xTaskCreate(APP_Shell_Task, "Shell Task", APP_TASK_STACK_SIZE, &app, configMAX_PRIORITIES - 3,
                    &app.shell_task_handle) != pdPASS)
    {
        PRINTF("\r\nFailed to create application task\r\n");
        while (1)
            ;
    }

    /* Run RTOS */
    vTaskStartScheduler();

    /* Should not reach this statement */
    return 0;
}