51 lines
1.4 KiB
C
51 lines
1.4 KiB
C
// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef _ESP32_HAL_I2C_H_
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#define _ESP32_HAL_I2C_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "esp32-hal.h"
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#include "soc/i2c_struct.h"
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typedef struct {
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i2c_dev_t * dev;
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uint8_t num;
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} i2c_t;
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i2c_t * i2cInit(uint8_t i2c_num, uint16_t slave_addr, bool addr_10bit_en);
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void i2cSetFrequency(i2c_t * i2c, uint32_t clk_speed);
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uint32_t i2cGetFrequency(i2c_t * i2c);
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void i2cResetFiFo(i2c_t * i2c);
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void i2cAttachSCL(i2c_t * i2c, int8_t scl);
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void i2cDetachSCL(i2c_t * i2c, int8_t scl);
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void i2cAttachSDA(i2c_t * i2c, int8_t sda);
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void i2cDetachSDA(i2c_t * i2c, int8_t sda);
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int i2cWrite(i2c_t * i2c, uint16_t address, bool addr_10bit, uint8_t * data, uint8_t len, bool sendStop);
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int i2cRead(i2c_t * i2c, uint16_t address, bool addr_10bit, uint8_t * data, uint8_t len, bool sendStop);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _ESP32_HAL_I2C_H_ */
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