diff options
Diffstat (limited to 'twi_master_driver.h')
| -rw-r--r-- | twi_master_driver.h | 59 |
1 files changed, 29 insertions, 30 deletions
diff --git a/twi_master_driver.h b/twi_master_driver.h index c6620f7..d0e8f57 100644 --- a/twi_master_driver.h +++ b/twi_master_driver.h @@ -72,63 +72,62 @@ /*! Transaction result enumeration. */
typedef enum TWIM_RESULT_enum {
- TWIM_RESULT_UNKNOWN = (0x00<<0),
- TWIM_RESULT_OK = (0x01<<0),
- TWIM_RESULT_BUFFER_OVERFLOW = (0x02<<0),
- TWIM_RESULT_ARBITRATION_LOST = (0x03<<0),
- TWIM_RESULT_BUS_ERROR = (0x04<<0),
- TWIM_RESULT_NACK_RECEIVED = (0x05<<0),
- TWIM_RESULT_FAIL = (0x06<<0),
+ TWIM_RESULT_UNKNOWN ,
+ TWIM_RESULT_OK ,
+ TWIM_RESULT_BUFFER_OVERFLOW ,
+ TWIM_RESULT_ARBITRATION_LOST ,
+ TWIM_RESULT_BUS_ERROR ,
+ TWIM_RESULT_NACK_RECEIVED ,
+ TWIM_RESULT_FAIL ,
} TWIM_RESULT_t;
-/*! Buffer size defines */
-#define TWIM_WRITE_BUFFER_SIZE 8
-#define TWIM_READ_BUFFER_SIZE 8
-
-
/*! \brief TWI master driver struct
*
* TWI master struct. Holds pointer to TWI module,
* buffers and necessary varibles.
*/
typedef struct TWI_Master {
- TWI_t *interface; /*!< Pointer to what interface to use */
- register8_t address; /*!< Slave address */
- register8_t writeData[TWIM_WRITE_BUFFER_SIZE]; /*!< Data to write */
- register8_t readData[TWIM_READ_BUFFER_SIZE]; /*!< Read data */
- register8_t bytesToWrite; /*!< Number of bytes to write */
- register8_t bytesToRead; /*!< Number of bytes to read */
- register8_t bytesWritten; /*!< Number of bytes written */
- register8_t bytesRead; /*!< Number of bytes read */
- register8_t status; /*!< Status of transaction */
- register8_t result; /*!< Result of transaction */
+ TWI_t *interface; /*!< Pointer to what interface to use */
+ uint8_t const *writeData; /*!< Data to write */
+ uint8_t *readData; /*!< Read data */
+ uint8_t address; /*!< Slave address */
+ uint8_t bytesToWrite; /*!< Number of bytes to write */
+ uint8_t bytesToRead; /*!< Number of bytes to read */
+ uint8_t bytesWritten; /*!< Number of bytes written */
+ uint8_t bytesRead; /*!< Number of bytes read */
+ uint8_t status; /*!< Status of transaction */
+ uint8_t result; /*!< Result of transaction */
}TWI_Master_t;
-
-
void TWI_MasterInit(TWI_Master_t *twi,
TWI_t *module,
TWI_MASTER_INTLVL_t intLevel,
uint8_t baudRateRegisterSetting);
+
TWI_MASTER_BUSSTATE_t TWI_MasterState(TWI_Master_t *twi);
+
bool TWI_MasterReady(TWI_Master_t *twi);
+
+void TWI_MasterForceIdle(TWI_Master_t *twi);
+
bool TWI_MasterWrite(TWI_Master_t *twi,
uint8_t address,
- uint8_t * writeData,
+ uint8_t const * writeData,
uint8_t bytesToWrite);
+
bool TWI_MasterRead(TWI_Master_t *twi,
uint8_t address,
+ uint8_t * readData,
uint8_t bytesToRead);
+
bool TWI_MasterWriteRead(TWI_Master_t *twi,
uint8_t address,
- uint8_t *writeData,
+ uint8_t const *writeData,
uint8_t bytesToWrite,
+ uint8_t *readData,
uint8_t bytesToRead);
+
void TWI_MasterInterruptHandler(TWI_Master_t *twi);
-void TWI_MasterArbitrationLostBusErrorHandler(TWI_Master_t *twi);
-void TWI_MasterWriteHandler(TWI_Master_t *twi);
-void TWI_MasterReadHandler(TWI_Master_t *twi);
-void TWI_MasterTransactionFinished(TWI_Master_t *twi, uint8_t result);
/*! TWI master interrupt service routine.
|