diff options
Diffstat (limited to 'os/hal/platforms/STM32/i2c_lld.h')
| -rw-r--r-- | os/hal/platforms/STM32/i2c_lld.h | 68 |
1 files changed, 41 insertions, 27 deletions
diff --git a/os/hal/platforms/STM32/i2c_lld.h b/os/hal/platforms/STM32/i2c_lld.h index 76f7068e2..2c926b1dd 100644 --- a/os/hal/platforms/STM32/i2c_lld.h +++ b/os/hal/platforms/STM32/i2c_lld.h @@ -55,25 +55,45 @@ /*===========================================================================*/ /* Derived constants and error checks. */ /*===========================================================================*/ -#define I2CD_NO_ERROR 0 -/** @brief Bus Error.*/ -#define I2CD_BUS_ERROR 0x01 -/** @brief Arbitration Lost (master mode).*/ -#define I2CD_ARBITRATION_LOST 0x02 -/** @brief Acknowledge Failure.*/ -#define I2CD_ACK_FAILURE 0x04 -/** @brief Overrun/Underrun.*/ -#define I2CD_OVERRUN 0x08 -/** @brief PEC Error in reception.*/ -#define I2CD_PEC_ERROR 0x10 -/** @brief Timeout or Tlow Error.*/ -#define I2CD_TIMEOUT 0x20 -/** @brief SMBus Alert.*/ -#define I2CD_SMB_ALERT 0x40 + +/** @brief EV5 */ +#define I2C_EV5_MASTER_MODE_SELECT ((uint32_t)(((I2C_SR2_MSL|I2C_SR2_BUSY)<< 16)|I2C_SR1_SB)) /* BUSY, MSL and SB flag */ +/** @brief EV6 */ +#define I2C_EV6_MASTER_TRA_MODE_SELECTED ((uint32_t)(((I2C_SR2_MSL|I2C_SR2_BUSY|I2C_SR2_TRA)<< 16)|I2C_SR1_ADDR|I2C_SR1_TXE)) /* BUSY, MSL, ADDR, TXE and TRA flags */ +#define I2C_EV6_MASTER_REC_MODE_SELECTED ((uint32_t)(((I2C_SR2_MSL|I2C_SR2_BUSY)<< 16)|I2C_SR1_ADDR)) /* BUSY, MSL and ADDR flags */ +/** @brief EV7 */ +#define I2C_EV7_MASTER_REC_BYTE_RECEIVED ((uint32_t)(((I2C_SR2_MSL|I2C_SR2_BUSY)<< 16)|I2C_SR1_RXNE)) /* BUSY, MSL and RXNE flags */ +#define I2C_EV7_MASTER_REC_BYTE_QUEUED ((uint32_t)(((I2C_SR2_MSL|I2C_SR2_BUSY)<< 16)|I2C_SR1_BTF|I2C_SR1_RXNE)) /* BUSY, MSL, RXNE and BTF flags*/ +/** @brief EV8 */ +#define I2C_EV8_MASTER_BYTE_TRANSMITTING ((uint32_t)(((I2C_SR2_MSL|I2C_SR2_BUSY|I2C_SR2_TRA)<< 16)|I2C_SR1_TXE)) /* TRA, BUSY, MSL, TXE flags */ +/** @brief EV8_2 */ +#define I2C_EV8_2_MASTER_BYTE_TRANSMITTED ((uint32_t)(((I2C_SR2_MSL|I2C_SR2_BUSY|I2C_SR2_TRA)<< 16)|I2C_SR1_BTF|I2C_SR1_TXE)) /* TRA, BUSY, MSL, TXE and BTF flags */ +/** @brief EV9 */ +#define I2C_EV9_MASTER_ADDR_10BIT ((uint32_t)(((I2C_SR2_MSL|I2C_SR2_BUSY)<< 16)|I2C_SR1_ADD10)) /* BUSY, MSL and ADD10 flags */ +#define I2C_EV_MASK 0x00FFFFFF + +#define I2C_FLG_1BTR 0x01 // Single byte to be received and processed +#define I2C_FLG_2BTR 0x02 // Two bytes to be received and processed +#define I2C_FLG_3BTR 0x04 // Last three received bytes to be processed +#define I2C_FLG_MASTER_RECEIVER 0x10 +#define I2C_FLG_HEADER_SENT 0x80 + +#define EV6_SUBEV_MASK (I2C_FLG_1BTR|I2C_FLG_2BTR|I2C_FLG_MASTER_RECEIVER) +#define EV7_SUBEV_MASK (I2C_FLG_2BTR|I2C_FLG_3BTR|I2C_FLG_MASTER_RECEIVER) + +#define I2C_EV6_1_MASTER_REC_2BTR_MODE_SELECTED (I2C_FLG_2BTR|I2C_FLG_MASTER_RECEIVER) +#define I2C_EV6_3_MASTER_REC_1BTR_MODE_SELECTED (I2C_FLG_1BTR|I2C_FLG_MASTER_RECEIVER) +#define I2C_EV7_2_MASTER_REC_3BYTES_TO_PROCESS (I2C_FLG_3BTR|I2C_FLG_MASTER_RECEIVER) +#define I2C_EV7_3_MASTER_REC_2BYTES_TO_PROCESS (I2C_FLG_2BTR|I2C_FLG_MASTER_RECEIVER) /*===========================================================================*/ /* Driver data structures and types. */ /*===========================================================================*/ +/** + * @brief Serial Driver condition flags type. + */ +typedef uint32_t i2cflags_t; + typedef enum { opmodeI2C, opmodeSMBusDevice, @@ -176,20 +196,14 @@ extern "C" { #endif void i2c_lld_init(void); +void i2c_lld_reset(I2CDriver *i2cp); +void i2c_lld_set_clock(I2CDriver *i2cp, int32_t clock_speed, I2C_DutyCycle_t duty); +void i2c_lld_set_opmode(I2CDriver *i2cp, I2C_opMode_t opmode); +void i2c_lld_set_own_address(I2CDriver *i2cp, int16_t address, int8_t nr_bit); void i2c_lld_start(I2CDriver *i2cp); void i2c_lld_stop(I2CDriver *i2cp); -void i2c_lld_set_clock(I2CDriver *i2cp); -void i2c_lld_set_opmode(I2CDriver *i2cp); -void i2c_lld_set_own_address(I2CDriver *i2cp); - -void i2c_lld_master_start(I2CDriver *i2cp); -void i2c_lld_master_stop(I2CDriver *i2cp); - -void i2c_lld_master_transmit(I2CDriver *i2cp, I2CSlaveConfig *i2cscfg); -void i2c_lld_master_receive(I2CDriver *i2cp, I2CSlaveConfig *i2cscfg); - -void i2c_lld_master_transmit_NI(I2CDriver *i2cp, I2CSlaveConfig *i2cscfg, bool_t restart); -void i2c_lld_master_receive_NI(I2CDriver *i2cp, I2CSlaveConfig *i2cscfg); +void i2c_lld_master_transmit(I2CDriver *i2cp, uint16_t slave_addr, size_t n, void *txbuf); +void i2c_lld_master_receive(I2CDriver *i2cp, uint16_t slave_addr, size_t n, void *rxbuf); #ifdef __cplusplus } |