firmware/variant/argonkey/src/os/i2c.c

/*
 * Copyright (C) 2016-2017 STMicroelectronics
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include <plat/i2c.h>
#include <util.h>

static const struct StmI2cBoardCfg mStmI2cBoardCfgs[] = {
    [0] = {
        .gpioScl = I2C1_GPIO_SCL_PB6,
        .gpioSda = I2C1_GPIO_SDA_PB7,

        .gpioPull = GPIO_PULL_NONE,

        .dmaRx = I2C1_DMA_RX_CFG_A,
        .dmaTx = I2C1_DMA_TX_CFG_B,

        .sleepDev = Stm32sleepDevI2c1,
    },
    [1] = {
        .gpioScl = I2C2_GPIO_SCL_PB10,
        .gpioSda = I2C2_GPIO_SDA_PB9,

        .gpioPull = GPIO_PULL_NONE,

        .dmaRx = I2C2_DMA_RX_CFG_A,
        .dmaTx = I2C2_DMA_TX_CFG,

        .sleepDev = Stm32sleepDevI2c2,
    },
    [2] = {
        .gpioScl = I2C3_GPIO_SCL_PA8,
        .gpioSda = I2C3_GPIO_SDA_PB4,

        .gpioPull = GPIO_PULL_NONE,

        .dmaRx = I2C3_DMA_RX_CFG_A,
        .dmaTx = I2C3_DMA_TX_CFG_B,

        .sleepDev = Stm32sleepDevI2c3,
    },
};

const struct StmI2cBoardCfg *boardStmI2cCfg(uint8_t busId)
{
    if (busId >= ARRAY_SIZE(mStmI2cBoardCfgs))
        return NULL;

    return &mStmI2cBoardCfgs[busId];
}