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feat(rmt): support sleep retention

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by back up the registers
This commit is contained in:
morris
2024-04-15 18:58:53 +08:00
parent 6a919dcc16
commit e8e975112a
34 changed files with 390 additions and 37 deletions
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64
components/esp_driver_rmt/src/rmt_common.c
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@@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2022-2023 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2022-2024 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@@ -43,6 +43,10 @@ typedef struct rmt_platform_t {
static rmt_platform_t s_platform; // singleton platform
#if RMT_USE_RETENTION_LINK
static esp_err_t rmt_create_sleep_retention_link_cb(void *arg);
#endif
rmt_group_t *rmt_acquire_group_handle(int group_id)
{
bool new_group = false;
@@ -81,6 +85,24 @@ rmt_group_t *rmt_acquire_group_handle(int group_id)
_lock_release(&s_platform.mutex);
if (new_group) {
#if RMT_USE_RETENTION_LINK
sleep_retention_module_t module = RMT_LL_SLEEP_RETENTION_MODULE_ID(group_id);
sleep_retention_module_init_param_t init_param = {
.cbs = {
.create = {
.handle = rmt_create_sleep_retention_link_cb,
.arg = group,
},
},
.depends = BIT(SLEEP_RETENTION_MODULE_CLOCK_SYSTEM)
};
if (sleep_retention_module_init(module, &init_param) == ESP_OK) {
group->sleep_retention_module = module;
} else {
// even though the sleep retention module init failed, RMT driver should still work, so just warning here
ESP_LOGW(TAG, "init sleep retention failed %d, power domain may be turned off during sleep", group_id);
}
#endif // RMT_USE_RETENTION_LINK
ESP_LOGD(TAG, "new group(%d) at %p, occupy=%"PRIx32, group_id, group, group->occupy_mask);
}
return group;
@@ -108,7 +130,6 @@ void rmt_release_group_handle(rmt_group_t *group)
RMT_RCC_ATOMIC() {
rmt_ll_enable_bus_clock(group_id, false);
}
free(group);
}
_lock_release(&s_platform.mutex);
@@ -123,6 +144,15 @@ void rmt_release_group_handle(rmt_group_t *group)
}
if (do_deinitialize) {
#if RMT_USE_RETENTION_LINK
if (group->sleep_retention_module) {
if (group->retention_link_created) {
sleep_retention_module_free(group->sleep_retention_module);
}
sleep_retention_module_deinit(group->sleep_retention_module);
}
#endif
free(group);
ESP_LOGD(TAG, "del group(%d)", group_id);
}
}
@@ -264,3 +294,33 @@ int rmt_get_isr_flags(rmt_group_t *group)
}
return isr_flags;
}
#if RMT_USE_RETENTION_LINK
static esp_err_t rmt_create_sleep_retention_link_cb(void *arg)
{
rmt_group_t *group = (rmt_group_t *)arg;
int group_id = group->group_id;
sleep_retention_module_t module = group->sleep_retention_module;
esp_err_t err = sleep_retention_entries_create(rmt_reg_retention_info[group_id].regdma_entry_array,
rmt_reg_retention_info[group_id].array_size,
REGDMA_LINK_PRI_RMT, module);
ESP_RETURN_ON_ERROR(err, TAG, "create retention link failed");
return ESP_OK;
}
void rmt_create_retention_module(rmt_group_t *group)
{
sleep_retention_module_t module = group->sleep_retention_module;
_lock_acquire(&s_platform.mutex);
if (group->retention_link_created == false) {
if (sleep_retention_module_allocate(module) != ESP_OK) {
// even though the sleep retention module create failed, RMT driver should still work, so just warning here
ESP_LOGW(TAG, "create retention module failed, power domain can't turn off");
} else {
group->retention_link_created = true;
}
}
_lock_release(&s_platform.mutex);
}
#endif // RMT_USE_RETENTION_LINK