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Merge branch 'feature/support_i2c_timeout' into 'master'

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feature(i2c_master): Add a parameter for config the scl await value

See merge request espressif/esp-idf!29787
This commit is contained in:
C.S.M
2024-03-27 18:14:58 +08:00
parent 9f93ee1fba ede1df51b0
commit 333e8aa19e
15 changed files with 150 additions and 2 deletions
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14
components/hal/esp32c5/include/hal/i2c_ll.h
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@@ -75,6 +75,7 @@ typedef enum {
#define I2C_LL_SLAVE_RX_EVENT_INTR (I2C_TRANS_COMPLETE_INT_ENA_M | I2C_RXFIFO_WM_INT_ENA_M | I2C_SLAVE_STRETCH_INT_ENA_M)
#define I2C_LL_SLAVE_TX_EVENT_INTR (I2C_TXFIFO_WM_INT_ENA_M)
#define I2C_LL_RESET_SLV_SCL_PULSE_NUM_DEFAULT (9)
#define I2C_LL_SCL_WAIT_US_VAL_DEFAULT (2500) // Approximate value for SCL timeout regs (in us).
/**
* @brief Calculate I2C bus frequency
@@ -852,6 +853,19 @@ static inline void i2c_ll_slave_clear_stretch(i2c_dev_t *dev)
dev->scl_stretch_conf.slave_scl_stretch_clr = 1;
}
/**
* @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 31 - __builtin_clz(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)//////////////////////////////