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feat(i2c_master): Add parameter to config I2C scl await time

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Cao Sen Miao
2024-03-19 12:15:24 +08:00
parent 4505ddc8a9
commit ede1df51b0
15 changed files with 150 additions and 2 deletions
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14
components/hal/esp32/include/hal/i2c_ll.h
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@@ -70,6 +70,7 @@ typedef enum {
#define I2C_LL_SLAVE_EVENT_INTR (I2C_TRANS_COMPLETE_INT_ENA_M|I2C_TXFIFO_EMPTY_INT_ENA_M|I2C_RX_REC_FULL_INT_ST_M)
#define I2C_LL_SLAVE_RX_EVENT_INTR (I2C_TRANS_COMPLETE_INT_ENA_M|I2C_RX_REC_FULL_INT_ST_M)
#define I2C_LL_SLAVE_TX_EVENT_INTR (I2C_TXFIFO_EMPTY_INT_ENA_M)
#define I2C_LL_SCL_WAIT_US_VAL_DEFAULT (2000) // 2000 is not default value on esp32, but 0 is not good to be default
/**
* @brief Calculate I2C bus frequency
@@ -809,6 +810,19 @@ static inline bool i2c_ll_master_is_cmd_done(i2c_dev_t *hw, int cmd_idx)
return hw->command[cmd_idx].done;
}
/**
* @brief Calculate SCL timeout us to reg value
*
* @param timeout_us timeout value in us
* @param src_clk_hz source clock frequency
* @return uint32_t reg value
*/
static inline uint32_t i2c_ll_calculate_timeout_us_to_reg_val(uint32_t src_clk_hz, uint32_t timeout_us)
{
uint32_t clk_cycle_num_per_us = src_clk_hz / (1 * 1000 * 1000);
return clk_cycle_num_per_us * timeout_us;
}
//////////////////////////////////////////Deprecated Functions//////////////////////////////////////////////////////////
/////////////////////////////The following functions are only used by the legacy driver/////////////////////////////////
/////////////////////////////They might be removed in the next major release (ESP-IDF 6.0)//////////////////////////////