575 lines
13 KiB
C
575 lines
13 KiB
C
/***************************************************************************
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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 All unpublished rights reserved.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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#include "hal_sleep.h"
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#include "analog.h"
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#include "cmsis.h"
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#include "hal_cmu.h"
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#include "hal_dma.h"
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#include "hal_gpadc.h"
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#include "hal_location.h"
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#include "hal_norflash.h"
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#include "hal_sysfreq.h"
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#include "hal_timer.h"
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#include "hal_trace.h"
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#include "pmu.h"
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// static uint8_t SRAM_STACK_LOC sleep_stack[128];
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static HAL_SLEEP_HOOK_HANDLER sleep_hook_handler[HAL_SLEEP_HOOK_USER_QTY];
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static HAL_DEEP_SLEEP_HOOK_HANDLER
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deep_sleep_hook_handler[HAL_DEEP_SLEEP_HOOK_USER_QTY];
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static uint32_t cpu_wake_lock_map;
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static uint32_t sys_wake_lock_map;
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static uint32_t chip_wake_lock_map;
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#ifdef SLEEP_STATS_TRACE
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static uint32_t stats_trace_interval;
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static uint32_t stats_trace_time;
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#endif
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static uint32_t stats_interval;
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static uint32_t stats_start_time;
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static uint32_t light_sleep_time;
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static uint32_t sys_deep_sleep_time;
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static uint32_t chip_deep_sleep_time;
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static bool stats_started;
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static bool stats_valid;
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static uint8_t light_sleep_ratio;
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static uint8_t sys_deep_sleep_ratio;
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static uint8_t chip_deep_sleep_ratio;
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void hal_sleep_start_stats(uint32_t stats_interval_ms,
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uint32_t trace_interval_ms) {
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uint32_t lock;
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lock = int_lock();
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if (stats_interval_ms) {
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stats_interval = MS_TO_TICKS(stats_interval_ms);
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stats_start_time = hal_sys_timer_get();
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light_sleep_time = 0;
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sys_deep_sleep_time = 0;
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chip_deep_sleep_time = 0;
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stats_valid = false;
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stats_started = true;
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} else {
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stats_started = false;
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}
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int_unlock(lock);
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#ifdef SLEEP_STATS_TRACE
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if (stats_interval_ms && trace_interval_ms) {
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stats_trace_interval = MS_TO_TICKS(trace_interval_ms);
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} else {
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stats_trace_interval = 0;
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}
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#endif
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}
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int hal_sleep_get_stats(struct CPU_USAGE_T *usage) {
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int ret;
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uint32_t lock;
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lock = int_lock();
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if (stats_valid) {
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usage->light_sleep = light_sleep_ratio;
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usage->sys_deep_sleep = sys_deep_sleep_ratio;
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usage->chip_deep_sleep = chip_deep_sleep_ratio;
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usage->busy = 100 - (light_sleep_ratio + sys_deep_sleep_ratio +
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chip_deep_sleep_ratio);
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ret = 0;
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} else {
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ret = 1;
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}
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int_unlock(lock);
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return ret;
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}
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static int hal_sleep_cpu_busy(void) {
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if (cpu_wake_lock_map || hal_cmu_lpu_busy()) {
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return 1;
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} else {
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return 0;
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}
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}
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static int hal_sleep_sys_busy(void) {
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if (sys_wake_lock_map || hal_sysfreq_busy() || hal_dma_busy()) {
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return 1;
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} else {
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return 0;
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}
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}
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int hal_sleep_set_sleep_hook(enum HAL_SLEEP_HOOK_USER_T user,
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HAL_SLEEP_HOOK_HANDLER handler) {
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if (user >= ARRAY_SIZE(sleep_hook_handler)) {
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return 1;
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}
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sleep_hook_handler[user] = handler;
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return 0;
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}
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static int SRAM_TEXT_LOC hal_sleep_exec_sleep_hook(void) {
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int i;
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int ret;
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for (i = 0; i < ARRAY_SIZE(sleep_hook_handler); i++) {
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if (sleep_hook_handler[i]) {
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ret = sleep_hook_handler[i]();
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if (ret) {
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return ret;
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}
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}
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}
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return 0;
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}
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int hal_sleep_set_deep_sleep_hook(enum HAL_DEEP_SLEEP_HOOK_USER_T user,
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HAL_DEEP_SLEEP_HOOK_HANDLER handler) {
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if (user >= ARRAY_SIZE(deep_sleep_hook_handler)) {
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return 1;
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}
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deep_sleep_hook_handler[user] = handler;
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return 0;
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}
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static int SRAM_TEXT_LOC hal_sleep_exec_deep_sleep_hook(void) {
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int i;
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int ret;
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for (i = 0; i < ARRAY_SIZE(deep_sleep_hook_handler); i++) {
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if (deep_sleep_hook_handler[i]) {
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ret = deep_sleep_hook_handler[i]();
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if (ret) {
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return ret;
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}
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}
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}
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return 0;
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}
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int SRAM_TEXT_LOC hal_sleep_irq_pending(void) {
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#if defined(__GIC_PRESENT) && (__GIC_PRESENT)
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int i;
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for (i = 0; i < (USER_IRQn_QTY + 31) / 32; i++) {
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if (GICDistributor->ICPENDR[i] & GICDistributor->ISENABLER[i]) {
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return 1;
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}
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}
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#else
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#if 0
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int i;
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for (i = 0; i < (USER_IRQn_QTY + 31) / 32; i++) {
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if (NVIC->ICPR[i] & NVIC->ISER[i]) {
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return 1;
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}
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}
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#else
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// If there is any pending and enabled exception (including sysTick)
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if (SCB->ICSR & SCB_ICSR_VECTPENDING_Msk) {
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return 1;
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}
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#endif
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#endif
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return 0;
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}
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int SRAM_TEXT_LOC hal_sleep_specific_irq_pending(const uint32_t *irq,
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uint32_t cnt) {
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int i;
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uint32_t check_cnt;
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check_cnt = (USER_IRQn_QTY + 31) / 32;
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if (check_cnt > cnt) {
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check_cnt = cnt;
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}
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#if defined(__GIC_PRESENT) && (__GIC_PRESENT)
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for (i = 0; i < check_cnt; i++) {
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if (GICDistributor->ICPENDR[i] & GICDistributor->ISENABLER[i] & irq[i]) {
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return 1;
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}
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}
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#else
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for (i = 0; i < check_cnt; i++) {
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if (NVIC->ICPR[i] & NVIC->ISER[i] & irq[i]) {
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return 1;
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}
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}
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#endif
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return 0;
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}
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void WEAK bt_drv_sleep(void) {}
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void WEAK bt_drv_wakeup(void) {}
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static enum HAL_SLEEP_STATUS_T SRAM_TEXT_LOC hal_sleep_lowpower_mode(void) {
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enum HAL_SLEEP_STATUS_T ret;
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enum HAL_CMU_LPU_SLEEP_MODE_T mode;
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uint32_t time = 0;
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ret = HAL_SLEEP_STATUS_LIGHT;
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// Deep sleep hook
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if (hal_sleep_exec_deep_sleep_hook() || hal_trace_busy()) {
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return ret;
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}
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if (stats_started) {
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time = hal_sys_timer_get();
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}
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// Modules (except for psram and flash) sleep
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hal_gpadc_sleep();
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if (chip_wake_lock_map == 0) {
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analog_sleep();
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pmu_sleep();
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}
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bt_drv_sleep();
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// End of sleep
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// psram_sleep();
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hal_norflash_sleep(HAL_NORFLASH_ID_0);
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// Now neither psram nor flash are usable
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if (!hal_sleep_irq_pending()) {
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if (chip_wake_lock_map) {
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mode = HAL_CMU_LPU_SLEEP_MODE_SYS;
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} else {
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mode = HAL_CMU_LPU_SLEEP_MODE_CHIP;
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}
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hal_cmu_lpu_sleep(mode);
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ret = HAL_SLEEP_STATUS_DEEP;
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}
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hal_norflash_wakeup(HAL_NORFLASH_ID_0);
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// psram_wakeup();
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// Now both psram and flash are usable
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if (chip_wake_lock_map == 0) {
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pmu_wakeup();
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analog_wakeup();
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}
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bt_drv_wakeup();
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hal_gpadc_wakeup();
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// Modules (except for psram and flash) wakeup
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// End of wakeup
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if (stats_started) {
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time = hal_sys_timer_get() - time;
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if (chip_wake_lock_map) {
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sys_deep_sleep_time += time;
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} else {
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chip_deep_sleep_time += time;
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}
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}
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return ret;
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}
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// GCC has trouble in detecting static function usage in embedded ASM
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// statements. The following function might be optimized away if there is no
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// explicted call in C codes. Specifying "used" (or "noclone") attribute on the
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// function can avoid the mistaken optimization.
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static enum HAL_SLEEP_STATUS_T SRAM_TEXT_LOC NOINLINE USED
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hal_sleep_proc(int light_sleep) {
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enum HAL_SLEEP_STATUS_T ret;
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uint32_t time = 0;
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uint32_t interval;
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ret = HAL_SLEEP_STATUS_LIGHT;
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// Check the sleep conditions in interrupt-locked context
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if (hal_sleep_cpu_busy()) {
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// Cannot sleep
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} else {
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// Sleep hook
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if (hal_sleep_exec_sleep_hook()) {
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goto _exit_sleep;
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}
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if (hal_sleep_sys_busy()) {
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// Light sleep
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if (stats_started) {
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time = hal_sys_timer_get();
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}
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#ifdef NO_LIGHT_SLEEP
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// WFI during USB ISO transfer might generate very weak (0.1 mV) 1K tone
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// interference ???
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while (!hal_sleep_irq_pending())
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;
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#else
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#ifndef __ARM_ARCH_ISA_ARM
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SCB->SCR = 0;
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#endif
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__DSB();
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__WFI();
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#endif
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if (stats_started) {
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light_sleep_time += hal_sys_timer_get() - time;
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}
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#ifdef DEBUG
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} else if (hal_trace_busy()) {
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// Light sleep with trace busy only
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if (stats_started) {
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time = hal_sys_timer_get();
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}
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// No irq will be generated when trace becomes idle, so the trace status
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// should be kept polling actively instead of entering WFI
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while (!hal_sleep_irq_pending() && hal_trace_busy())
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;
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if (stats_started) {
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light_sleep_time += hal_sys_timer_get() - time;
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}
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if (!hal_sleep_irq_pending()) {
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goto _deep_sleep;
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}
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#endif
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} else {
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// Deep sleep
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_deep_sleep:
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POSSIBLY_UNUSED;
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if (light_sleep) {
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ret = HAL_SLEEP_STATUS_DEEP;
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} else {
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ret = hal_sleep_lowpower_mode();
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}
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}
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}
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_exit_sleep:
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if (stats_started) {
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time = hal_sys_timer_get();
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interval = time - stats_start_time;
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if (interval >= stats_interval) {
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if (light_sleep_time > UINT32_MAX / 100) {
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light_sleep_ratio = (uint64_t)light_sleep_time * 100 / interval;
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} else {
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light_sleep_ratio = light_sleep_time * 100 / interval;
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}
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if (sys_deep_sleep_time > UINT32_MAX / 100) {
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sys_deep_sleep_ratio = (uint64_t)sys_deep_sleep_time * 100 / interval;
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} else {
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sys_deep_sleep_ratio = sys_deep_sleep_time * 100 / interval;
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}
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if (chip_deep_sleep_time > UINT32_MAX / 100) {
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chip_deep_sleep_ratio = (uint64_t)chip_deep_sleep_time * 100 / interval;
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} else {
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chip_deep_sleep_ratio = chip_deep_sleep_time * 100 / interval;
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}
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stats_valid = true;
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light_sleep_time = 0;
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sys_deep_sleep_time = 0;
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chip_deep_sleep_time = 0;
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stats_start_time = time;
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}
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#ifdef SLEEP_STATS_TRACE
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if (stats_valid && stats_trace_interval) {
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uint32_t time = hal_sys_timer_get();
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if (time - stats_trace_time >= stats_trace_interval) {
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TRACE(4, "CPU USAGE: busy=%d light=%d sys_deep=%d chip_deep=%d",
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100 - (light_sleep_ratio + sys_deep_sleep_ratio +
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chip_deep_sleep_ratio),
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light_sleep_ratio, sys_deep_sleep_ratio, chip_deep_sleep_ratio);
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stats_trace_time = time;
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#ifdef DEBUG_SLEEP_USER
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TRACE(4, "SLEEP_USER: cpulock=0x%X syslock=0x%X irq=0x%08X_%08X",
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cpu_wake_lock_map, sys_wake_lock_map,
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(NVIC->ICPR[1] & NVIC->ISER[1]), (NVIC->ICPR[0] & NVIC->ISER[0]));
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hal_sysfreq_print();
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#endif
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}
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}
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#endif
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}
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return ret;
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}
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#ifndef __ARM_ARCH_ISA_ARM
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static enum HAL_SLEEP_STATUS_T SRAM_TEXT_LOC NOINLINE USED NAKED
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hal_sleep_deep_sleep_wrapper(void) {
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asm volatile("push {r4, lr} \n"
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// Switch current stack pointer to MSP
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"mrs r4, control \n"
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"bic r4, #2 \n"
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"msr control, r4 \n"
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"isb \n"
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"movs r0, #0 \n"
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"bl hal_sleep_proc \n"
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// Switch current stack pointer back to PSP
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"orr r4, #2 \n"
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"msr control, r4 \n"
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"isb \n"
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"pop {r4, pc} \n");
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#ifndef __ARMCC_VERSION
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return HAL_SLEEP_STATUS_LIGHT;
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#endif
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}
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#endif
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enum HAL_SLEEP_STATUS_T SRAM_TEXT_LOC hal_sleep_enter_sleep(void) {
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enum HAL_SLEEP_STATUS_T ret;
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uint32_t lock;
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ret = HAL_SLEEP_STATUS_LIGHT;
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#ifdef NO_SLEEP
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return ret;
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#endif
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lock = int_lock_global();
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#ifndef __ARM_ARCH_ISA_ARM
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if (__get_CONTROL() & 0x02) {
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ret = hal_sleep_deep_sleep_wrapper();
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} else
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#endif
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{
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ret = hal_sleep_proc(false);
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}
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int_unlock_global(lock);
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return ret;
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}
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enum HAL_SLEEP_STATUS_T SRAM_TEXT_LOC hal_sleep_light_sleep(void) {
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enum HAL_SLEEP_STATUS_T ret;
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uint32_t lock;
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ret = HAL_SLEEP_STATUS_LIGHT;
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#ifdef NO_SLEEP
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return ret;
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#endif
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lock = int_lock_global();
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ret = hal_sleep_proc(true);
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int_unlock_global(lock);
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return ret;
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}
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int hal_cpu_wake_lock(enum HAL_CPU_WAKE_LOCK_USER_T user) {
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uint32_t lock;
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if (user >= HAL_CPU_WAKE_LOCK_USER_QTY) {
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return 1;
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}
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lock = int_lock();
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cpu_wake_lock_map |= (1 << user);
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int_unlock(lock);
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return 0;
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}
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int hal_cpu_wake_unlock(enum HAL_CPU_WAKE_LOCK_USER_T user) {
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uint32_t lock;
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if (user >= HAL_CPU_WAKE_LOCK_USER_QTY) {
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return 1;
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}
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lock = int_lock();
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cpu_wake_lock_map &= ~(1 << user);
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int_unlock(lock);
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return 0;
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}
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int hal_sys_wake_lock(enum HAL_SYS_WAKE_LOCK_USER_T user) {
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uint32_t lock;
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if (user >= HAL_SYS_WAKE_LOCK_USER_QTY) {
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return 1;
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}
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lock = int_lock();
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sys_wake_lock_map |= (1 << user);
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int_unlock(lock);
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return 0;
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}
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int hal_sys_wake_unlock(enum HAL_SYS_WAKE_LOCK_USER_T user) {
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uint32_t lock;
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if (user >= HAL_SYS_WAKE_LOCK_USER_QTY) {
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return 1;
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}
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lock = int_lock();
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sys_wake_lock_map &= ~(1 << user);
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int_unlock(lock);
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return 0;
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|
}
|
|
|
|
int hal_chip_wake_lock(enum HAL_CHIP_WAKE_LOCK_USER_T user) {
|
|
uint32_t lock;
|
|
|
|
if (user >= HAL_CHIP_WAKE_LOCK_USER_QTY) {
|
|
return 1;
|
|
}
|
|
|
|
lock = int_lock();
|
|
chip_wake_lock_map |= (1 << user);
|
|
int_unlock(lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int hal_chip_wake_unlock(enum HAL_CHIP_WAKE_LOCK_USER_T user) {
|
|
uint32_t lock;
|
|
|
|
if (user >= HAL_CHIP_WAKE_LOCK_USER_QTY) {
|
|
return 1;
|
|
}
|
|
|
|
lock = int_lock();
|
|
chip_wake_lock_map &= ~(1 << user);
|
|
int_unlock(lock);
|
|
|
|
return 0;
|
|
}
|