diff options
Diffstat (limited to 'os/hal/platforms/STM32/i2c_lld.h')
| -rw-r--r-- | os/hal/platforms/STM32/i2c_lld.h | 49 |
1 files changed, 37 insertions, 12 deletions
diff --git a/os/hal/platforms/STM32/i2c_lld.h b/os/hal/platforms/STM32/i2c_lld.h index 72b190eba..1b684a167 100644 --- a/os/hal/platforms/STM32/i2c_lld.h +++ b/os/hal/platforms/STM32/i2c_lld.h @@ -78,12 +78,24 @@ /*===========================================================================*/ /** + * @brief Type of a structure representing an I2C driver. + */ +typedef struct I2CDriver I2CDriver; + +/** + * @brief Type of a structure representing an I2C driver. + */ +typedef struct I2CSlaveConfig I2CSlaveConfig; + + +/** * @brief I2C notification callback type. * * @param[in] i2cp FIXME: pointer to the @p I2CDriver object triggering the * callback */ -typedef void (*i2ccallback_t)(void); +typedef void (*i2ccallback_t)(I2CDriver *i2cp, I2CSlaveConfig *i2cscfg); +//typedef void (*i2ccallback_t)(void); /** * @brief I2C error notification callback type. @@ -93,6 +105,7 @@ typedef void (*i2ccallback_t)(void); */ typedef void (*i2cerrorcallback_t)(void); + /** * @brief Driver configuration structure. */ @@ -123,27 +136,31 @@ typedef uint8_t i2cblock_t; * @brief Structure representing an I2C slave configuration. * @details Each slave has its own data buffers, adress, and error flags. */ -typedef struct { +struct I2CSlaveConfig{ /** * @brief Callback pointer. - * @note TODO: I don't know, when this callback is inwoked + * @note Transfer finished callback. Invoke when all data transferred, or + * by DMA buffer events * @p NULL then the callback is disabled. */ - i2ccallback_t id_callback; + i2ccallback_t id_stop_callback; + i2ccallback_t id_restart_callback; /** * @brief Callback pointer. * @note TODO: I don't know, when this callback is inwoked * @p NULL then the callback is disabled. */ - i2cerrorcallback_t id_errcallback; + i2cerrorcallback_t id_err_callback; - i2cblock_t *rxbuf; // pointer to buffer - size_t rxdepth;// depth of buffer - size_t rxbytes;// count of bytes to sent in one sending + i2cblock_t *rxbuf; // pointer to buffer + size_t rxdepth; // depth of buffer + size_t rxbytes; // count of bytes to sent in one sending + size_t rxbufhead; // head pointer to current data byte i2cblock_t *txbuf; size_t txdepth; size_t txbytes; + size_t txbufhead; uint8_t slave_addr1; // 7-bit address of the slave uint8_t slave_addr2; // used in 10-bit address mode @@ -154,14 +171,14 @@ typedef struct { bool_t restart; // send restart or stop event after complete data tx/rx -}I2CSlaveConfig; +}; /** * @brief Structure representing an I2C driver. */ -typedef struct { +struct I2CDriver{ /** * @brief Driver state. */ @@ -195,7 +212,10 @@ typedef struct { */ I2C_TypeDef *id_i2c; -} I2CDriver; +} ; + + + /*===========================================================================*/ @@ -224,9 +244,14 @@ void i2c_lld_start(I2CDriver *i2cp); void i2c_lld_stop(I2CDriver *i2cp); void i2c_lld_master_start(I2CDriver *i2cp, uint16_t header); void i2c_lld_master_stop(I2CDriver *i2cp); + void i2c_lld_master_transmit(I2CDriver *i2cp, I2CSlaveConfig *i2cscfg, bool_t restart); -void i2c_lld_master_transmitI(I2CDriver *i2cp, I2CSlaveConfig *i2cscfg, bool_t restart); +bool_t i2c_lld_txbyte(I2CDriver *i2cp); // helper function +void i2c_lld_master_transmitI(I2CDriver *i2cp, I2CSlaveConfig *i2cscfg); + void i2c_lld_master_receive(I2CDriver *i2cp, I2CSlaveConfig *i2cscfg); +void i2c_lld_master_receiveI(I2CDriver *i2cp, I2CSlaveConfig *i2cscfg); +bool_t i2c_lld_rxbyte(I2CDriver *i2cp); //static i2cflags_t translate_errors(uint16_t sr); #ifdef __cplusplus |