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feat(driver): support acquire/release clock source dependency for all drivers

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This commit is contained in:
wuzhenghui
2025-01-20 15:45:38 +08:00
parent 113f40a3e0
commit 65b7e70564
35 changed files with 135 additions and 102 deletions
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4
components/esp_driver_gptimer/src/gptimer.c
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@@ -108,6 +108,9 @@ static void gptimer_unregister_from_group(gptimer_t *timer)
static esp_err_t gptimer_destroy(gptimer_t *timer)
{
if (timer->clk_src) {
ESP_RETURN_ON_ERROR(esp_clk_tree_enable_src((soc_module_clk_t)(timer->clk_src), false), TAG, "clock source disable failed");
}
#if CONFIG_PM_ENABLE
if (timer->pm_lock) {
ESP_RETURN_ON_ERROR(esp_pm_lock_delete(timer->pm_lock), TAG, "delete pm_lock failed");
@@ -157,6 +160,7 @@ esp_err_t gptimer_new_timer(const gptimer_config_t *config, gptimer_handle_t *re
// initialize HAL layer
timer_hal_init(&timer->hal, group_id, timer_id);
// select clock source, set clock resolution
ESP_GOTO_ON_ERROR(esp_clk_tree_enable_src((soc_module_clk_t)config->clk_src, true), err, TAG, "clock source enable failed");
ESP_GOTO_ON_ERROR(gptimer_select_periph_clock(timer, config->clk_src, config->resolution_hz), err, TAG, "set periph clock failed");
// initialize counter value to zero
timer_hal_set_counter_value(&timer->hal, 0);

3
components/esp_driver_gptimer/src/gptimer_common.c
View File

@@ -99,6 +99,7 @@ esp_err_t gptimer_select_periph_clock(gptimer_t *timer, gptimer_clock_source_t s
periph_rtc_dig_clk8m_enable();
}
#endif // SOC_TIMER_GROUP_SUPPORT_RC_FAST
timer->clk_src = src_clk;
// get clock source frequency
ESP_RETURN_ON_ERROR(esp_clk_tree_src_get_freq_hz((soc_module_clk_t)src_clk, ESP_CLK_TREE_SRC_FREQ_PRECISION_CACHED, &counter_src_hz),
@@ -139,7 +140,6 @@ esp_err_t gptimer_select_periph_clock(gptimer_t *timer, gptimer_clock_source_t s
}
#endif // CONFIG_PM_ENABLE
esp_clk_tree_enable_src((soc_module_clk_t)src_clk, true);
// !!! HARDWARE SHARED RESOURCE !!!
// on some ESP chip, different peripheral's clock source setting are mixed in the same register
// so we need to make this done in an atomic way
@@ -147,7 +147,6 @@ esp_err_t gptimer_select_periph_clock(gptimer_t *timer, gptimer_clock_source_t s
timer_ll_set_clock_source(group_id, timer_id, src_clk);
timer_ll_enable_clock(group_id, timer_id, true);
}
timer->clk_src = src_clk;
uint32_t prescale = counter_src_hz / resolution_hz; // potential resolution loss here
timer_ll_set_clock_prescale(timer->hal.dev, timer_id, prescale);
timer->resolution_hz = counter_src_hz / prescale; // this is the real resolution

1
components/esp_driver_gptimer/src/gptimer_priv.h
View File

@@ -28,6 +28,7 @@
#include "hal/timer_hal.h"
#include "hal/timer_ll.h"
#include "clk_ctrl_os.h"
#include "esp_private/esp_clk_tree_common.h"
#include "esp_private/sleep_retention.h"
#include "esp_private/periph_ctrl.h"