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Merge branch 'feat/i2c_rcc_support' into 'master'

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refactor(i2c): Add reset and clock control to i2c ll layer

See merge request espressif/esp-idf!26684
This commit is contained in:
C.S.M
2023-10-28 10:01:06 +08:00
parent 11c8501f32 0bf1dce413
commit 59d029bf66
15 changed files with 386 additions and 23 deletions
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41
components/hal/esp32s3/include/hal/i2c_ll.h
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@@ -15,6 +15,7 @@
#include "soc/soc_caps.h"
#include "soc/i2c_struct.h"
#include "soc/clk_tree_defs.h"
#include "soc/system_struct.h"
#include "hal/i2c_types.h"
#include "esp_attr.h"
#include "esp_assert.h"
@@ -125,6 +126,46 @@ static inline void i2c_ll_update(i2c_dev_t *hw)
hw->ctr.conf_upgate = 1;
}
/**
* @brief Enable the bus clock for I2C module
*
* @param i2c_port I2C port id
* @param enable true to enable, false to disable
*/
static inline void i2c_ll_enable_bus_clock(int i2c_port, bool enable)
{
if (i2c_port == 0) {
SYSTEM.perip_clk_en0.i2c_ext0_clk_en = enable;
} else if (i2c_port == 1) {
SYSTEM.perip_clk_en0.i2c_ext1_clk_en = enable;
}
}
/// use a macro to wrap the function, force the caller to use it in a critical section
/// the critical section needs to declare the __DECLARE_RCC_ATOMIC_ENV variable in advance
#define i2c_ll_enable_bus_clock(...) do {(void)__DECLARE_RCC_ATOMIC_ENV; i2c_ll_enable_bus_clock(__VA_ARGS__);} while(0)
/**
* @brief Reset the I2C module
*
* @param i2c_port Group ID
*/
static inline void i2c_ll_reset_register(int i2c_port)
{
if (i2c_port == 0) {
SYSTEM.perip_rst_en0.i2c_ext0_rst = 1;
SYSTEM.perip_rst_en0.i2c_ext0_rst = 0;
} else if (i2c_port == 1) {
SYSTEM.perip_rst_en0.i2c_ext1_rst = 1;
SYSTEM.perip_rst_en0.i2c_ext1_rst = 0;
}
}
/// use a macro to wrap the function, force the caller to use it in a critical section
/// the critical section needs to declare the __DECLARE_RCC_ATOMIC_ENV variable in advance
#define i2c_ll_reset_register(...) do {(void)__DECLARE_RCC_ATOMIC_ENV; i2c_ll_reset_register(__VA_ARGS__);} while(0)
/**
* @brief Configure the I2C bus timing related register.
*