31 lines
912 B
ArmAsm
31 lines
912 B
ArmAsm
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/*
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* SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Unlicense OR CC0-1.0
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*/
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/* ULP assembly files are passed through C preprocessor first, so include directives
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and C macros may be used in these files
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*/
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#include "soc/rtc_cntl_reg.h"
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#include "soc/soc_ulp.h"
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#include "sdkconfig.h"
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.global wake_up
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wake_up:
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/* Check if the system is in sleep mode */
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#if CONFIG_IDF_TARGET_ESP32
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READ_RTC_REG(RTC_CNTL_LOW_POWER_ST_REG, 27, 1)
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#else
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READ_RTC_FIELD(RTC_CNTL_LOW_POWER_ST_REG, RTC_CNTL_MAIN_STATE_IN_IDLE)
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#endif
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move r1, r0
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/* Check if the system can be woken up */
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READ_RTC_FIELD(RTC_CNTL_LOW_POWER_ST_REG, RTC_CNTL_RDY_FOR_WAKEUP)
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/* If the system is in normal mode or if the system is in sleep mode with ready for wakeup set, we can signal the main CPU to wakeup */
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or r0, r0, r1
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jump wake_up, eq
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/* Wake up the SoC, end program */
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wake
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halt
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