alex/esp-idf
1
0
Fork 0
mirror of https://github.com/espressif/esp-idf.git synced 2025-08-23 17:24:44 +00:00
Code Issues Packages Projects Releases Wiki Activity

feat(i2c_slave): refactor i2c slave api to version 2 inorder to solve some existing problem

Browse Source
This commit is contained in:
C.S.M
2024-11-08 17:59:10 +08:00
parent f15c1b4c4f
commit 941d0e0779
22 changed files with 873 additions and 44 deletions
Download Patch File Download Diff File Expand all files Collapse all files

26
components/hal/esp32/include/hal/i2c_ll.h
View File

@@ -67,11 +67,13 @@ typedef enum {
// Get the I2C hardware instance
#define I2C_LL_GET_HW(i2c_num) (((i2c_num) == 0) ? &I2C0 : &I2C1)
#define I2C_LL_MASTER_EVENT_INTR (I2C_ACK_ERR_INT_ENA_M|I2C_TIME_OUT_INT_ENA_M|I2C_TRANS_COMPLETE_INT_ENA_M|I2C_ARBITRATION_LOST_INT_ENA_M|I2C_END_DETECT_INT_ENA_M)
#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_EVENT_INTR (I2C_TRANS_COMPLETE_INT_ENA_M|I2C_TXFIFO_EMPTY_INT_ENA_M|I2C_RX_REC_FULL_INT_ST_M|I2C_RXFIFO_FULL_INT_ENA)
#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
#define I2C_LL_STRETCH_PROTECT_TIME (0x3ff) // Not supported on esp32, keep consistent with other chips.
/**
* @brief Calculate I2C bus frequency
*
@@ -808,6 +810,16 @@ static inline void i2c_ll_slave_clear_stretch(i2c_dev_t *dev)
// Not supported on esp32
}
/**
* @brief Set I2C clock stretch protect num
*
* @param dev Beginning address of the peripheral registers
*/
static inline void i2c_ll_slave_set_stretch_protect_num(i2c_dev_t *dev, uint32_t protect_num)
{
// Not supported on esp32
}
/**
* @brief Check if i2c command is done.
*
@@ -835,6 +847,18 @@ static inline uint32_t i2c_ll_calculate_timeout_us_to_reg_val(uint32_t src_clk_h
return clk_cycle_num_per_us * timeout_us;
}
/**
* @brief Get status of i2c slave
*
* @param Beginning address of the peripheral registers
* @return i2c slave working status
*/
__attribute__((always_inline))
static inline i2c_slave_read_write_status_t i2c_ll_slave_get_read_write_status(i2c_dev_t *hw)
{
return (hw->status_reg.slave_rw == 0) ? I2C_SLAVE_WRITE_BY_MASTER : I2C_SLAVE_READ_BY_MASTER;
}
//////////////////////////////////////////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)//////////////////////////////