69 lines
1.9 KiB
C
69 lines
1.9 KiB
C
// Copyright 2015-2017 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include <stdint.h>
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#include <assert.h>
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#include "soc/rtc.h"
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#include "soc/rtc_cntl_reg.h"
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typedef enum {
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PM_LIGHT_SLEEP = BIT(2), /*!< WiFi PD, memory in light sleep */
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} pm_sleep_mode_t;
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typedef enum{
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PM_SW_NOREJECT = 0,
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PM_SW_REJECT = 1
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} pm_sw_reject_t;
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/* These MAC-related functions are defined in the closed source part of
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* RTC library
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*/
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extern void pm_mac_init();
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extern int pm_check_mac_idle();
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extern void pm_mac_deinit();
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/* This sleep-related function is called from the closed source part of RTC
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* library.
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*/
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pm_sw_reject_t pm_set_sleep_mode(pm_sleep_mode_t sleep_mode, void(*pmac_save_params)())
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{
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(void) pmac_save_params; /* unused */
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pm_mac_deinit();
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if (pm_check_mac_idle()) {
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pm_mac_init();
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return PM_SW_REJECT;
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}
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rtc_sleep_config_t cfg = { 0 };
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cfg.soc_clk_sel = RTC_CNTL_SOC_CLK_SEL_XTL;
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switch (sleep_mode) {
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case PM_LIGHT_SLEEP:
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cfg.wifi_pd_en = 1;
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cfg.dig_dbias_wak = 4;
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cfg.dig_dbias_slp = 0;
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cfg.rtc_dbias_wak = 0;
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cfg.rtc_dbias_slp = 0;
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cfg.lslp_meminf_pd = 1;
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rtc_sleep_init(cfg);
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break;
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default:
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assert(0 && "unsupported sleep mode");
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}
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return PM_SW_NOREJECT;
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}
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