1 /*
2 * SPDX-FileCopyrightText: 2022-2023 Espressif Systems (Shanghai) CO LTD
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6
7 // The HAL layer for PAU (ESP32-H2 specific part)
8
9 #include "soc/soc.h"
10 #include "soc/pcr_struct.h"
11 #include "esp_attr.h"
12 #include "hal/misc.h"
13 #include "hal/pau_hal.h"
14 #include "hal/pau_types.h"
15
pau_hal_set_regdma_entry_link_addr(pau_hal_context_t * hal,pau_regdma_link_addr_t * link_addr)16 void pau_hal_set_regdma_entry_link_addr(pau_hal_context_t *hal, pau_regdma_link_addr_t *link_addr)
17 {
18 pau_ll_set_regdma_link0_addr(hal->dev, (*link_addr)[0]);
19 }
20
pau_hal_start_regdma_system_link(pau_hal_context_t * hal,bool backup_or_restore)21 void IRAM_ATTR pau_hal_start_regdma_system_link(pau_hal_context_t *hal, bool backup_or_restore)
22 {
23 pau_ll_clear_regdma_backup_done_intr_state(hal->dev);
24
25 pau_ll_select_regdma_entry_link(hal->dev, 0);
26 pau_ll_set_regdma_entry_link_backup_direction(hal->dev, backup_or_restore);
27 pau_ll_set_regdma_entry_link_backup_start_enable(hal->dev);
28
29 while (!(pau_ll_get_regdma_intr_raw_signal(hal->dev) & PAU_DONE_INT_RAW));
30 }
31
pau_hal_stop_regdma_system_link(pau_hal_context_t * hal)32 void IRAM_ATTR pau_hal_stop_regdma_system_link(pau_hal_context_t *hal)
33 {
34 pau_ll_set_regdma_entry_link_backup_start_disable(hal->dev);
35 pau_ll_select_regdma_entry_link(hal->dev, 0); /* restore link select to default */
36 pau_ll_clear_regdma_backup_done_intr_state(hal->dev);
37 }
38
pau_hal_regdma_clock_configure(pau_hal_context_t * hal,bool enable)39 void IRAM_ATTR pau_hal_regdma_clock_configure(pau_hal_context_t *hal, bool enable)
40 {
41 HAL_FORCE_MODIFY_U32_REG_FIELD(PCR.regdma_conf, regdma_rst_en, !enable);
42 HAL_FORCE_MODIFY_U32_REG_FIELD(PCR.regdma_conf, regdma_clk_en, enable);
43 }
44
