/* * SPDX-FileCopyrightText: 2022-2024 Espressif Systems (Shanghai) CO LTD * * SPDX-License-Identifier: Apache-2.0 */ #include "soc/soc.h" #include "esp_attr.h" #include "hal/pau_hal.h" #include "hal/pau_types.h" void pau_hal_set_regdma_entry_link_addr(pau_hal_context_t *hal, pau_regdma_link_addr_t *link_addr) { pau_ll_set_regdma_link0_addr(hal->dev, (*link_addr)[0]); pau_ll_set_regdma_link1_addr(hal->dev, (*link_addr)[1]); pau_ll_set_regdma_link2_addr(hal->dev, (*link_addr)[2]); /* The link 3 of REGDMA is reserved, PMU state switching will not use * REGDMA link 3 */ } void IRAM_ATTR pau_hal_start_regdma_modem_link(pau_hal_context_t *hal, bool backup_or_restore) { pau_ll_clear_regdma_backup_done_intr_state(hal->dev); pau_ll_set_regdma_select_wifimac_link(hal->dev); pau_ll_set_regdma_wifimac_link_backup_direction(hal->dev, backup_or_restore); pau_ll_set_regdma_wifimac_link_backup_start_enable(hal->dev); while (!(pau_ll_get_regdma_intr_raw_signal(hal->dev) & PAU_DONE_INT_RAW)); } void IRAM_ATTR pau_hal_stop_regdma_modem_link(pau_hal_context_t *hal) { pau_ll_set_regdma_wifimac_link_backup_start_disable(hal->dev); pau_ll_set_regdma_deselect_wifimac_link(hal->dev); pau_ll_clear_regdma_backup_done_intr_state(hal->dev); } void IRAM_ATTR pau_hal_start_regdma_extra_link(pau_hal_context_t *hal, bool backup_or_restore) { pau_ll_clear_regdma_backup_done_intr_state(hal->dev); /* The link 3 of REGDMA is reserved, we use it as an extra linked list to * provide backup and restore services for BLE, IEEE802.15.4 and possibly * other modules. * It is also used as software trigger REGDMA to backup and restore, and is * used by the UT to test module driver retention function. */ pau_ll_select_regdma_entry_link(hal->dev, 3); pau_ll_set_regdma_entry_link_backup_direction(hal->dev, backup_or_restore); pau_ll_set_regdma_entry_link_backup_start_enable(hal->dev); while (!(pau_ll_get_regdma_intr_raw_signal(hal->dev) & PAU_DONE_INT_RAW)); } void IRAM_ATTR pau_hal_stop_regdma_extra_link(pau_hal_context_t *hal) { pau_ll_set_regdma_entry_link_backup_start_disable(hal->dev); pau_ll_select_regdma_entry_link(hal->dev, 0); /* restore link select to default */ pau_ll_clear_regdma_backup_done_intr_state(hal->dev); }