rt-thread/bsp/imxrt/imxrt1060-nxp-evk/board/ports/touchpad.c

/*
 * Copyright 2022 NXP
 * All rights reserved.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

#include "touchpad.h"

void BOARD_LPI2C_Init(LPI2C_Type *base, uint32_t clkSrc_Hz)
{
    lpi2c_master_config_t lpi2cConfig = {0};

    /*
     * lpi2cConfig.debugEnable = false;
     * lpi2cConfig.ignoreAck = false;
     * lpi2cConfig.pinConfig = kLPI2C_2PinOpenDrain;
     * lpi2cConfig.baudRate_Hz = 100000U;
     * lpi2cConfig.busIdleTimeout_ns = 0;
     * lpi2cConfig.pinLowTimeout_ns = 0;
     * lpi2cConfig.sdaGlitchFilterWidth_ns = 0;
     * lpi2cConfig.sclGlitchFilterWidth_ns = 0;
     */
    LPI2C_MasterGetDefaultConfig(&lpi2cConfig);
    LPI2C_MasterInit(base, &lpi2cConfig, clkSrc_Hz);
}

status_t BOARD_LPI2C_Send(LPI2C_Type *base,
                          uint8_t deviceAddress,
                          uint32_t subAddress,
                          uint8_t subAddressSize,
                          uint8_t *txBuff,
                          uint8_t txBuffSize)
{
    lpi2c_master_transfer_t xfer;

    xfer.flags          = kLPI2C_TransferDefaultFlag;
    xfer.slaveAddress   = deviceAddress;
    xfer.direction      = kLPI2C_Write;
    xfer.subaddress     = subAddress;
    xfer.subaddressSize = subAddressSize;
    xfer.data           = txBuff;
    xfer.dataSize       = txBuffSize;

    return LPI2C_MasterTransferBlocking(base, &xfer);
}

status_t BOARD_LPI2C_Receive(LPI2C_Type *base,
                             uint8_t deviceAddress,
                             uint32_t subAddress,
                             uint8_t subAddressSize,
                             uint8_t *rxBuff,
                             uint8_t rxBuffSize)
{
    lpi2c_master_transfer_t xfer;

    xfer.flags          = kLPI2C_TransferDefaultFlag;
    xfer.slaveAddress   = deviceAddress;
    xfer.direction      = kLPI2C_Read;
    xfer.subaddress     = subAddress;
    xfer.subaddressSize = subAddressSize;
    xfer.data           = rxBuff;
    xfer.dataSize       = rxBuffSize;

    return LPI2C_MasterTransferBlocking(base, &xfer);
}

status_t BOARD_LPI2C_SendSCCB(LPI2C_Type *base,
                              uint8_t deviceAddress,
                              uint32_t subAddress,
                              uint8_t subAddressSize,
                              uint8_t *txBuff,
                              uint8_t txBuffSize)
{
    lpi2c_master_transfer_t xfer;

    xfer.flags          = kLPI2C_TransferDefaultFlag;
    xfer.slaveAddress   = deviceAddress;
    xfer.direction      = kLPI2C_Write;
    xfer.subaddress     = subAddress;
    xfer.subaddressSize = subAddressSize;
    xfer.data           = txBuff;
    xfer.dataSize       = txBuffSize;

    return LPI2C_MasterTransferBlocking(base, &xfer);
}

status_t BOARD_LPI2C_ReceiveSCCB(LPI2C_Type *base,
                                 uint8_t deviceAddress,
                                 uint32_t subAddress,
                                 uint8_t subAddressSize,
                                 uint8_t *rxBuff,
                                 uint8_t rxBuffSize)
{
    status_t status;
    lpi2c_master_transfer_t xfer;

    xfer.flags          = kLPI2C_TransferDefaultFlag;
    xfer.slaveAddress   = deviceAddress;
    xfer.direction      = kLPI2C_Write;
    xfer.subaddress     = subAddress;
    xfer.subaddressSize = subAddressSize;
    xfer.data           = NULL;
    xfer.dataSize       = 0;

    status = LPI2C_MasterTransferBlocking(base, &xfer);

    if (kStatus_Success == status)
    {
        xfer.subaddressSize = 0;
        xfer.direction      = kLPI2C_Read;
        xfer.data           = rxBuff;
        xfer.dataSize       = rxBuffSize;

        status = LPI2C_MasterTransferBlocking(base, &xfer);
    }

    return status;
}

status_t BOARD_Touch_I2C_Send(
    uint8_t deviceAddress, uint32_t subAddress, uint8_t subAddressSize, const uint8_t *txBuff, uint8_t txBuffSize)
{
    return BOARD_LPI2C_Send(BOARD_TOUCH_I2C_BASEADDR, deviceAddress, subAddress, subAddressSize, (uint8_t *)txBuff,
                            txBuffSize);
}

status_t BOARD_Touch_I2C_Receive(
    uint8_t deviceAddress, uint32_t subAddress, uint8_t subAddressSize, uint8_t *rxBuff, uint8_t rxBuffSize)
{
    return BOARD_LPI2C_Receive(BOARD_TOUCH_I2C_BASEADDR, deviceAddress, subAddress, subAddressSize, rxBuff, rxBuffSize);
}