| /******************************************************************************* |
| * // Copyright (c) 2003-2015 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 "esp_idf_version.h" |
| #if (ESP_IDF_VERSION < ESP_IDF_VERSION_VAL(4, 2, 0)) |
| #include "esp_clk.h" |
| #else |
| #if CONFIG_IDF_TARGET_ESP32S2 |
| #include "esp32s2/clk.h" |
| #elif CONFIG_IDF_TARGET_ESP32 |
| #include "esp32/clk.h" |
| #endif |
| #endif /* ESP_IDF_VERSION < ESP_IDF_VERSION_VAL(4, 2, 0) */ |
| |
| #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 */ |