38 lines
1.1 KiB
C
38 lines
1.1 KiB
C
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#ifndef _NODEMCU_I2C_COMMON_H_
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#define _NODEMCU_I2C_COMMON_H_
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#include "lauxlib.h"
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typedef enum {
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I2C_ID_SW = 0,
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I2C_ID_HW0,
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I2C_ID_HW1,
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I2C_ID_MAX
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} i2c_id_type;
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// ***************************************************************************
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// Hardware master prototypes
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//
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void li2c_hw_master_init( lua_State *L );
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int li2c_hw_master_setup( lua_State *L, unsigned id, unsigned sda, unsigned scl, uint32_t speed, unsigned stretchfactor );
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void li2c_hw_master_start( lua_State *L, unsigned id );
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void li2c_hw_master_stop( lua_State *L, unsigned id );
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int li2c_hw_master_address( lua_State *L, unsigned id, uint16_t address, uint8_t direction, bool ack_check_en );
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void li2c_hw_master_write( lua_State *L, unsigned id, uint8_t data, bool ack_check_en );
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void li2c_hw_master_read( lua_State *L, unsigned id, uint32_t len );
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int li2c_hw_master_transfer( lua_State *L );
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// ***************************************************************************
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// Hardware slave prototypes
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//
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extern LROT_TABLE(li2c_slave);
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void li2c_hw_slave_init( lua_State *L );
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#endif /*_NODEMCU_I2C_COMMON_H_*/
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