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feat(mcpwm): ETM support mcpwm timer TEZ/TEP events

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This commit is contained in:
Chen Chen
2026-02-12 11:46:33 +08:00
parent caefb5741b
commit f90f05e09b
12 changed files with 385 additions and 22 deletions
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components/esp_driver_mcpwm/src/mcpwm_etm.c
+65 -4
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@@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2023-2025 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2023-2026 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@@ -13,7 +13,13 @@ typedef struct {
mcpwm_cmpr_handle_t cmpr;
} mcpwm_comparator_etm_event_t;
static esp_err_t mcpwm_del_etm_event(esp_etm_event_t *event)
typedef struct {
esp_etm_event_t base;
mcpwm_timer_handle_t timer;
mcpwm_timer_etm_event_type_t event_type;
} mcpwm_timer_etm_event_t;
static esp_err_t mcpwm_del_comparator_etm_event(esp_etm_event_t *event)
{
mcpwm_comparator_etm_event_t *etm_event = __containerof(event, mcpwm_comparator_etm_event_t, base);
mcpwm_cmpr_handle_t cmpr = etm_event->cmpr;
@@ -39,11 +45,27 @@ static esp_err_t mcpwm_del_etm_event(esp_etm_event_t *event)
return ESP_OK;
}
static esp_err_t mcpwm_del_timer_etm_event(esp_etm_event_t *event)
{
mcpwm_timer_etm_event_t *etm_event = __containerof(event, mcpwm_timer_etm_event_t, base);
mcpwm_timer_handle_t timer = etm_event->timer;
mcpwm_group_t *group = timer->group;
mcpwm_hal_context_t *hal = &group->hal;
int timer_id = timer->timer_id;
portENTER_CRITICAL(&group->spinlock);
mcpwm_ll_etm_enable_timer_event(hal->dev, timer_id, etm_event->event_type, false);
portEXIT_CRITICAL(&group->spinlock);
free(etm_event);
return ESP_OK;
}
esp_err_t mcpwm_comparator_new_etm_event(mcpwm_cmpr_handle_t cmpr, const mcpwm_cmpr_etm_event_config_t *config, esp_etm_event_handle_t *out_event)
{
esp_err_t ret = ESP_OK;
mcpwm_comparator_etm_event_t *event = NULL;
ESP_RETURN_ON_FALSE(cmpr && config && out_event, ESP_ERR_INVALID_ARG, TAG, "invalid argument");
ESP_RETURN_ON_FALSE(config->event_type < MCPWM_CMPR_ETM_EVENT_MAX, ESP_ERR_INVALID_ARG, TAG, "invalid event type");
event = heap_caps_calloc(1, sizeof(mcpwm_comparator_etm_event_t), MCPWM_MEM_ALLOC_CAPS);
ESP_RETURN_ON_FALSE(event, ESP_ERR_NO_MEM, TAG, "no memory for ETM event");
@@ -78,14 +100,53 @@ esp_err_t mcpwm_comparator_new_etm_event(mcpwm_cmpr_handle_t cmpr, const mcpwm_c
event->cmpr = cmpr;
event->base.event_id = event_id;
event->base.trig_periph = ETM_TRIG_PERIPH_MCPWM;
event->base.del = mcpwm_del_etm_event;
event->base.del = mcpwm_del_comparator_etm_event;
*out_event = &event->base;
return ESP_OK;
err:
if (event) {
mcpwm_del_etm_event(&event->base);
mcpwm_del_comparator_etm_event(&event->base);
}
return ret;
}
esp_err_t mcpwm_timer_new_etm_event(mcpwm_timer_handle_t timer, const mcpwm_timer_etm_event_config_t *config, esp_etm_event_handle_t *out_event)
{
esp_err_t ret = ESP_OK;
mcpwm_timer_etm_event_t *event = NULL;
ESP_RETURN_ON_FALSE(timer && config && out_event, ESP_ERR_INVALID_ARG, TAG, "invalid argument");
ESP_RETURN_ON_FALSE(config->event_type < MCPWM_TIMER_ETM_EVENT_MAX, ESP_ERR_INVALID_ARG, TAG, "invalid event type");
event = heap_caps_calloc(1, sizeof(mcpwm_timer_etm_event_t), MCPWM_MEM_ALLOC_CAPS);
ESP_RETURN_ON_FALSE(event, ESP_ERR_NO_MEM, TAG, "no memory for ETM event");
mcpwm_group_t *group = timer->group;
mcpwm_hal_context_t *hal = &group->hal;
int group_id = group->group_id;
int timer_id = timer->timer_id;
uint32_t event_id = 0;
portENTER_CRITICAL(&group->spinlock);
mcpwm_ll_etm_enable_timer_event(hal->dev, timer_id, config->event_type, true);
portEXIT_CRITICAL(&group->spinlock);
event_id = MCPWM_LL_TIMER_ETM_EVENT_TABLE(group_id, timer_id, config->event_type);
event->event_type = config->event_type;
ESP_GOTO_ON_FALSE(event_id != 0, ESP_ERR_NOT_SUPPORTED, err, TAG, "not supported event type");
ESP_LOGD(TAG, "MCPWM (%d) timer (%d) event_id (%"PRId32")", group_id, timer_id, event_id);
// fill the ETM event object
event->timer = timer;
event->base.event_id = event_id;
event->base.trig_periph = ETM_TRIG_PERIPH_MCPWM;
event->base.del = mcpwm_del_timer_etm_event;
*out_event = &event->base;
return ESP_OK;
err:
if (event) {
mcpwm_del_timer_etm_event(&event->base);
}
return ret;
}