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

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C.S.M
2024-11-08 17:59:10 +08:00
parent f15c1b4c4f
commit 941d0e0779
22 changed files with 873 additions and 44 deletions
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43
components/hal/esp32s2/include/hal/i2c_ll.h
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@@ -15,6 +15,7 @@
#include "hal/i2c_types.h"
#include "esp_attr.h"
#include "hal/misc.h"
#include "hal/assert.h"
#ifdef __cplusplus
extern "C" {
@@ -72,6 +73,8 @@ typedef enum {
#define I2C_LL_RESET_SLV_SCL_PULSE_NUM_DEFAULT (9)
#define I2C_LL_SCL_WAIT_US_VAL_DEFAULT (2000) // 2000 is not default value on esp32s2, but 0 is not good to be default
#define I2C_LL_STRETCH_PROTECT_TIME (0x3ff)
/**
* @brief Calculate I2C bus frequency
*
@@ -309,7 +312,23 @@ static inline void i2c_ll_slave_broadcast_enable(i2c_dev_t *hw, bool broadcast_e
__attribute__((always_inline))
static inline void i2c_ll_slave_get_stretch_cause(i2c_dev_t *hw, i2c_slave_stretch_cause_t *stretch_cause)
{
// Not supported on esp32s2
switch (hw->status_reg.stretch_cause) {
case 0:
*stretch_cause = I2C_SLAVE_STRETCH_CAUSE_ADDRESS_MATCH;
break;
case 1:
*stretch_cause = I2C_SLAVE_STRETCH_CAUSE_TX_EMPTY;
break;
case 2:
*stretch_cause = I2C_SLAVE_STRETCH_CAUSE_RX_FULL;
break;
case 3:
*stretch_cause = I2C_SLAVE_STRETCH_CAUSE_SENDING_ACK;
break;
default:
HAL_ASSERT(false);
break;
}
}
/**
@@ -858,6 +877,16 @@ static inline void i2c_ll_slave_clear_stretch(i2c_dev_t *dev)
dev->scl_stretch_conf.slave_scl_stretch_clr = 1;
}
/**
* @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)
{
dev->scl_stretch_conf.stretch_protect_num = protect_num;
}
/**
* @brief Check if i2c command is done.
*
@@ -885,6 +914,18 @@ 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)//////////////////////////////