esp-ena/components/i2c-main/i2c-main.h

41 lines
1.1 KiB
C

// Copyright 2020 Lukas Haubaum
//
// Licensed under the GNU Affero General Public License, Version 3;
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// https://www.gnu.org/licenses/agpl-3.0.html
//
// 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.
/**
* @file
*
* @brief start I2C driver for display and RTC.
*
*/
#ifndef _i2c_main_H_
#define _i2c_main_H_
#define I2C_SDA_PIN (CONFIG_I2C_SDA_PIN)
#define I2C_SCL_PIN (CONFIG_I2C_SCL_PIN)
#define I2C_CLK_SPEED (CONFIG_I2C_CLOCKSPEED)
/**
* @brief initialize main I2C interface
*/
void i2c_main_init();
/**
* @brief check if I2C interface already initialized
*
* @return
* - false I2C not initialized
* - true I2C initialized
*/
bool i2c_is_initialized();
#endif