85 lines
2.1 KiB
ArmAsm
85 lines
2.1 KiB
ArmAsm
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/***************************************************************************
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*
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* Copyright 2015-2019 BES.
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* All rights reserved. All unpublished rights reserved.
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*
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* No part of this work may be used or reproduced in any form or by any
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* means, or stored in a database or retrieval system, without prior written
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* permission of BES.
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*
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* Use of this work is governed by a license granted by BES.
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* This work contains confidential and proprietary information of
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* BES. which is protected by copyright, trade secret,
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* trademark and other intellectual property rights.
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*
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****************************************************************************/
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/*
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=========================================================================
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MCU Sleep Power Down and Wakeup Power Up Helper Functions
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=========================================================================
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*/
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.syntax unified
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#ifdef MCU_SLEEP_POWER_DOWN
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#ifdef ROM_BUILD
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.section .bss.mcu_sleep_stack
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#else
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.section .sram_bss.mcu_sleep_stack
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#endif
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.align 2
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mcu_sleep_stack:
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.space 4
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#ifdef ROM_BUILD
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.section .text.hal_sleep_mcu_power_down, "ax", %progbits
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#else
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.section .sram_text.hal_sleep_mcu_power_down, "ax", %progbits
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#endif
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.thumb
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.thumb_func
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.align 2
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.globl hal_sleep_mcu_power_down
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.type hal_sleep_mcu_power_down, %function
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hal_sleep_mcu_power_down:
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ldr r3, =mcu_sleep_stack
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push {r4-r12,lr}
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/* TODO: Save FPU registers? */
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str sp, [r3]
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bl hal_psc_mcu_auto_power_down
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.pd_loop:
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b .pd_loop
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.pool
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.size hal_sleep_mcu_power_down, . - hal_sleep_mcu_power_down
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#ifdef ROM_BUILD
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.section .text.hal_sleep_mcu_power_up, "ax", %progbits
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#else
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.section .sram_text.hal_sleep_mcu_power_up, "ax", %progbits
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#endif
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.thumb
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.thumb_func
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.align 2
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.globl hal_sleep_mcu_power_up
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.type hal_sleep_mcu_power_up, %function
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hal_sleep_mcu_power_up:
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ldr r3, =mcu_sleep_stack
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ldr sp, [r3]
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isb
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/* TODO: Restore FPU registers? */
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pop {r4-r12,lr}
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bx lr
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.pool
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.size hal_sleep_mcu_power_up, . - hal_sleep_mcu_power_up
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#endif
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.end
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