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

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This commit is contained in:
Cao Sen Miao
2023-10-26 14:04:00 +08:00
parent eceefa878f
commit 0bf1dce413
15 changed files with 386 additions and 23 deletions
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45
components/hal/esp32p4/include/hal/i2c_ll.h
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@@ -131,6 +131,45 @@ 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) {
HP_SYS_CLKRST.soc_clk_ctrl2.reg_i2c0_apb_clk_en = enable;
} else if (i2c_port == 1) {
HP_SYS_CLKRST.soc_clk_ctrl2.reg_i2c1_apb_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) {
HP_SYS_CLKRST.hp_rst_en1.reg_rst_en_i2c0 = 1;
HP_SYS_CLKRST.hp_rst_en1.reg_rst_en_i2c0 = 0;
} else if (i2c_port == 1) {
HP_SYS_CLKRST.hp_rst_en1.reg_rst_en_i2c1 = 1;
HP_SYS_CLKRST.hp_rst_en1.reg_rst_en_i2c1 = 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.
*
@@ -760,6 +799,10 @@ static inline void i2c_ll_set_source_clk(i2c_dev_t *hw, i2c_clock_source_t src_c
}
/// 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_set_source_clk(...) do {(void)__DECLARE_RCC_ATOMIC_ENV; i2c_ll_set_source_clk(__VA_ARGS__);} while(0)
/**
* @brief Enable I2C peripheral controller clock
*
@@ -769,10 +812,8 @@ static inline void i2c_ll_set_source_clk(i2c_dev_t *hw, i2c_clock_source_t src_c
static inline void i2c_ll_enable_controller_clock(i2c_dev_t *hw, bool en)
{
if (hw == &I2C0) {
HP_SYS_CLKRST.soc_clk_ctrl2.reg_i2c0_apb_clk_en = en;
HP_SYS_CLKRST.peri_clk_ctrl10.reg_i2c0_clk_en = en;
} else if (hw == &I2C1) {
HP_SYS_CLKRST.soc_clk_ctrl2.reg_i2c1_apb_clk_en = en;
HP_SYS_CLKRST.peri_clk_ctrl10.reg_i2c1_clk_en = en;
} else if (hw == &LP_I2C) {
// Do nothing