| 0,0 → 1,59 |
|---|
| #ifndef __i2c_h |
| #define __i2c_h |
| |
| #include "msg_queues.h" |
| |
| #define MAXI2CBUF MSGLEN |
| |
| #define I2C_IDLE 0x5 |
| #define I2C_STARTED 0x6 |
| #define I2C_RCV_DATA 0x7 |
| #define I2C_SEND_DATA 0x8 |
| #define I2C_SEND_ADDR 0x9 |
| #define I2C_CHECK_ACK 0xB |
| #define I2C_REQ_DATA 0xC |
| #define I2C_SEND_STOP 0xD |
| |
| #define I2C_MODE_SLAVE 0x10 |
| #define I2C_MODE_MASTER 0x11 |
| |
| #define I2C_MASTER_SEND 0x20 |
| #define I2C_MASTER_RECV 0x21 |
| #define I2C_MASTER_IDLE 0x22 |
| |
| #define I2C_ERR_THRESHOLD 1 |
| #define I2C_ERR_OVERRUN 0x4 |
| #define I2C_ERR_NOADDR 0x5 |
| #define I2C_ERR_NODATA 0x6 |
| #define I2C_ERR_MSGTOOLONG 0x7 |
| #define I2C_ERR_MSG_TRUNC 0x8 |
| |
| typedef struct __I2C_DATA { |
| unsigned char *buffer; |
| int buflen; |
| unsigned char status; |
| unsigned char bufind; |
| unsigned char slave_event_count; |
| unsigned char slave_error_code; |
| unsigned char slave_error_count; |
| unsigned char slave_in_last_byte; |
| unsigned char slave_outbufmsgtype; |
| unsigned char slave_sending_data; |
| unsigned char slave_sending_blank_data; |
| |
| unsigned char master_dest_addr; |
| unsigned char master_state; |
| unsigned char mode; |
| } I2C_DATA; // 16 bytes overhead |
| |
| void i2c_init(I2C_DATA *); |
| void i2c_interrupt_handler(void); |
| void i2c_interrupt_slave(void); |
| void i2c_interrupt_master(void); |
| void i2c_configure_slave(unsigned char); |
| void i2c_configure_master(void); |
| void i2c_master_send(unsigned char address, unsigned char length,unsigned char *msg); |
| void i2c_master_recv(unsigned char address, unsigned char length); |
| unsigned char i2c_master_busy(void); |
| |
| #endif |