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45 lines
1.5 KiB
C
45 lines
1.5 KiB
C
/*
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* SPDX-FileCopyrightText: 2023-2024 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include "soc/etm_periph.h"
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#include "soc/soc_etm_reg.h"
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/**
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* ETM Registers to be saved during sleep retention
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* - Channel configuration registers, e.g.: SOC_ETM_CH0_EVT_ID_REG, SOC_ETM_CH0_TASK_ID_REG
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*/
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#define ETM_RETENTION_REGS_CNT ((SOC_ETM_CH49_TASK_ID_REG - SOC_ETM_CH0_EVT_ID_REG) / 4 + 1)
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static const regdma_entries_config_t etm_regdma_entries[] = {
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// backup stage: save the status of enabled channels
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// restore stage: store the enabled channels
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[0] = {
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.config = REGDMA_LINK_CONTINUOUS_INIT(REGDMA_ETM_LINK(0x00),
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SOC_ETM_CH_ENA_AD0_REG, SOC_ETM_CH_ENA_AD0_SET_REG, 1, 0, 0),
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.owner = ENTRY(0) | ENTRY(2),
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},
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[1] = {
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.config = REGDMA_LINK_CONTINUOUS_INIT(REGDMA_ETM_LINK(0x01),
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SOC_ETM_CH_ENA_AD1_REG, SOC_ETM_CH_ENA_AD1_SET_REG, 1, 0, 0),
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.owner = ENTRY(0) | ENTRY(2),
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},
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// backup stage: save configuration registers
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// restore stage: restore the configuration registers
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[2] = {
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.config = REGDMA_LINK_CONTINUOUS_INIT(REGDMA_ETM_LINK(0x02),
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SOC_ETM_CH0_EVT_ID_REG, SOC_ETM_CH0_EVT_ID_REG, ETM_RETENTION_REGS_CNT, 0, 0),
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.owner = ENTRY(0) | ENTRY(2),
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},
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};
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const etm_reg_retention_info_t etm_reg_retention_info[SOC_ETM_GROUPS] = {
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[0] = {
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.module = SLEEP_RETENTION_MODULE_ETM0,
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.regdma_entry_array = etm_regdma_entries,
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.array_size = ARRAY_SIZE(etm_regdma_entries)
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},
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};
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