FreeRTOS-Kernel/portable/xtensa/xtensa_init.c (FreeRTOS)

/* * SPDX-FileCopyrightText: 2015-2019 Cadence Design Systems, Inc. * * SPDX-License-Identifier: MIT * * SPDX-FileContributor: 2016-2022 Espressif Systems (Shanghai) CO LTD */ /* * Copyright (c) 2015-2019 Cadence Design Systems, Inc. * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be included * in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ /* * XTENSA INITIALIZATION ROUTINES CODED IN C * * This file contains miscellaneous Xtensa RTOS-generic initialization functions * that are implemented in C. */ #ifdef XT_BOARD #include "xtensa/xtbsp.h" #endif #include "xtensa_rtos.h" #include "sdkconfig.h" #include "esp_private/esp_clk.h" #ifdef XT_RTOS_TIMER_INT unsigned _xt_tick_divisor = 0; /* cached number of cycles per tick */ void _xt_tick_divisor_init(void) { _xt_tick_divisor = esp_clk_cpu_freq() / XT_TICK_PER_SEC; } /* Deprecated, to be removed */ int xt_clock_freq(void) { return esp_clk_cpu_freq(); } #endif /* XT_RTOS_TIMER_INT */