1 /*
2 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
3 * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without modification,
6 * are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this list of
9 * conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
12 * of conditions and the following disclaimer in the documentation and/or other materials
13 * provided with the distribution.
14 *
15 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
16 * to endorse or promote products derived from this software without specific prior written
17 * permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
29 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #ifndef _LOS_ARCH_TIMER_H
33 #define _LOS_ARCH_TIMER_H
34
35 #include "los_config.h"
36 #include "los_compiler.h"
37 #include "los_timer.h"
38
39 #ifdef __cplusplus
40 #if __cplusplus
41 extern "C" {
42 #endif /* __cplusplus */
43 #endif /* __cplusplus */
44
45 VOID SysTick_Handler(VOID);
46
47 #define TIM0_GROUP0 0x3FF5F000
48 #define TIM0_GROUP1 0x3FF60000
49 #define TIM1_GROUP0 0x3FF5F024
50 #define TIM1_GROUP1 0x3FF60024
51
52 #define TIM0_INT_ENABLE_GROUP0 0x3FF5F098
53 #define TIM0_INT_ENABLE_GROUP1 0x3FF60098
54 #define TIM0_INT_CLEAR_GROUP0 0x3FF5F0A4
55 #define TIM0_INT_CLEAR_GROUP1 0x3FF600A4
56
57 typedef struct {
58 UINT32 CTRL;
59 UINT64 VAL;
60 UINT32 UPDATE;
61 UINT64 ALARM;
62 UINT64 LOAD;
63 UINT32 LOAD_TRI;
64 } Systick_t;
65
GetCcount(VOID)66 STATIC INLINE UINT32 GetCcount(VOID)
67 {
68 UINT32 intSave;
69 __asm__ __volatile__("rsr %0, ccount" : "=a"(intSave) :);
70 return intSave;
71 }
72
ResetCcount(VOID)73 STATIC INLINE VOID ResetCcount(VOID)
74 {
75 __asm__ __volatile__("wsr %0, ccount; rsync" : :"a"(0));
76 }
77
GetCcompare(VOID)78 STATIC INLINE UINT32 GetCcompare(VOID)
79 {
80 UINT32 intSave;
81 __asm__ __volatile__("rsr %0, ccompare0" : "=a"(intSave) :);
82 return intSave;
83 }
84
SetCcompare(UINT32 newCompareVal)85 STATIC INLINE VOID SetCcompare(UINT32 newCompareVal)
86 {
87 __asm__ __volatile__("wsr %0, ccompare0; rsync" : : "a"(newCompareVal));
88 }
89
90 #ifdef __cplusplus
91 #if __cplusplus
92 }
93 #endif /* __cplusplus */
94 #endif /* __cplusplus */
95
96 #endif /* _LOS_ARCH_TIMER_H */
97