1 /*
2  * Copyright (C) 2017-2019 Alibaba Group Holding Limited
3  *
4  * SPDX-License-Identifier: Apache-2.0
5  *
6  * Change Logs:
7  * Date           Author       Notes
8  * 2020-08-20     zx.chen      header file for setting system frequency
9  */
10 
11 #ifndef _SYS_FREQ_H_
12 #define _SYS_FREQ_H_
13 
14 #include <stdint.h>
15 
16 #ifdef __cplusplus
17 extern "C" {
18 #endif
19 
20 int32_t drv_get_i2s_freq(int32_t idx);
21 int32_t drv_get_pwm_freq(int32_t idx);
22 int32_t drv_get_usart_freq(int32_t idx);
23 int32_t drv_get_usi_freq(int32_t idx);
24 int32_t drv_get_sys_freq(void);
25 int32_t drv_get_apb_freq(void);
26 int32_t drv_get_rtc_freq(int32_t idx);
27 int32_t drv_get_timer_freq(int32_t idx);
28 
29 int32_t drv_get_cpu_freq(int32_t idx);
30 
31 #ifdef __cplusplus
32 }
33 #endif
34 
35 #endif /* _SYS_FREQ_H_ */
36 
37