| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| #ifndef __MCU_SYS_CLOCK_H_ |
| #define __MCU_SYS_CLOCK_H_ |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| typedef struct { |
| uint32_t frq; |
| uint8_t xosc:1; |
| uint8_t pll:1; |
| uint8_t osc_div:6; |
| uint8_t pll_div_r:2; |
| uint8_t pll_mul_f:6; |
| uint8_t pll_div_q:2; |
| uint8_t pll_outdiv1:1; |
| uint8_t pll_out_div:6; |
| } clock_config_t; |
| |
| void select_clock(const clock_config_t *cfg); |
| uint32_t get_cpu_freq(void); |
| unsigned long get_timer_freq(void); |
| uint32_t mtime_lo(void); |
| |
| extern const clock_config_t HFROSC; |
| extern const clock_config_t HFROSC_DIV_2; |
| extern const clock_config_t HFROSC_DIV_3; |
| extern const clock_config_t HFROSC_DIV_4; |
| extern const clock_config_t HFROSC_DIV_6; |
| extern const clock_config_t HFROSC_DIV_12; |
| extern const clock_config_t HFROSC_DIV_24; |
| extern const clock_config_t HFROSC_DIV_36; |
| extern const clock_config_t HFROSC_DIV_64; |
| extern const clock_config_t HFROSC_72_MHZ; |
| extern const clock_config_t HFXOSC_PLL_320_MHZ; |
| extern const clock_config_t HFXOSC_PLL_256_MHZ; |
| extern const clock_config_t HFXOSC_PLL_128_MHZ; |
| extern const clock_config_t HFXOSC_PLL_64_MHZ; |
| extern const clock_config_t HFXOSC_PLL_32_MHZ; |
| extern const clock_config_t HFXOSC_16_MHZ; |
| extern const clock_config_t HFXOSC_8_MHZ; |
| extern const clock_config_t HFXOSC_4_MHZ; |
| extern const clock_config_t HFXOSC_2_MHZ; |
| extern const clock_config_t HFXOSC_1_MHZ; |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* __MCU_SYS_CLOCK_H_ */ |
