mcp2221_smbus.h

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#ifndef MCP2221_SMBUS_H
#define MCP2221_SMBUS_H
 
#include <stddef.h>
#include <stdint.h>
 
#include "mcp2221.h"
 
MCP2221_BEGIN_DECLS
 
#define MCP2221_I2C_SMBUS_BLOCK_MAX 255
 
typedef struct mcp2221_smbus {
    mcp2221_t *mcp;
 
    int owns_mcp;
} mcp2221_smbus_t;
 
MCP2221_API mcp2221_error_code_t mcp2221_smbus_init(mcp2221_smbus_t *bus, mcp2221_t *existing_mcp, int device_index, uint16_t vid, uint16_t pid,
                              const char *usbserial, uint32_t i2c_speed_hz);
 
MCP2221_API void mcp2221_smbus_close(mcp2221_smbus_t *bus);
 
MCP2221_API mcp2221_error_code_t mcp2221_smbus_read_byte(mcp2221_smbus_t *bus, uint8_t addr, uint8_t *value);
 
MCP2221_API mcp2221_error_code_t mcp2221_smbus_write_byte(mcp2221_smbus_t *bus, uint8_t addr, uint8_t value);
 
MCP2221_API mcp2221_error_code_t mcp2221_smbus_read_byte_data(mcp2221_smbus_t *bus, uint8_t addr, uint8_t reg, uint8_t *value);
 
MCP2221_API mcp2221_error_code_t mcp2221_smbus_write_byte_data(mcp2221_smbus_t *bus, uint8_t addr, uint8_t reg, uint8_t value);
 
MCP2221_API mcp2221_error_code_t mcp2221_smbus_read_word_data(mcp2221_smbus_t *bus, uint8_t addr, uint8_t reg, int16_t *value);
 
MCP2221_API mcp2221_error_code_t mcp2221_smbus_write_word_data(mcp2221_smbus_t *bus, uint8_t addr, uint8_t reg, int16_t value);
 
MCP2221_API mcp2221_error_code_t mcp2221_smbus_process_call(mcp2221_smbus_t *bus, uint8_t addr, uint8_t reg, int16_t value, int16_t *response);
 
MCP2221_API mcp2221_error_code_t mcp2221_smbus_read_block_data(mcp2221_smbus_t *bus, uint8_t addr, uint8_t reg, uint8_t *buffer, size_t *length);
 
MCP2221_API mcp2221_error_code_t mcp2221_smbus_write_block_data(mcp2221_smbus_t *bus, uint8_t addr, uint8_t reg, const uint8_t *data, size_t length);
 
MCP2221_API mcp2221_error_code_t mcp2221_smbus_block_process_call(mcp2221_smbus_t *bus, uint8_t addr, uint8_t reg, const uint8_t *data,
                                       size_t length, uint8_t *response, size_t *resp_len);
 
MCP2221_API mcp2221_error_code_t mcp2221_smbus_read_i2c_block_data(mcp2221_smbus_t *bus, uint8_t addr, uint8_t reg, uint8_t *buffer, size_t length);
 
MCP2221_API mcp2221_error_code_t mcp2221_smbus_write_i2c_block_data(mcp2221_smbus_t *bus, uint8_t addr, uint8_t reg, const uint8_t *data,
                                       size_t length);
 
MCP2221_END_DECLS
#endif // MCP2221_SMBUS_H