1 /**
2 * @file lv_cmsis_rtos2.c
3 *
4 */
5
6 /*
7 * Copyright (C) 2023 Arm Limited or its affiliates. All rights reserved.
8 *
9 * SPDX-License-Identifier: Apache-2.0
10 */
11
12 /*********************
13 * INCLUDES
14 *********************/
15 #include "lv_os.h"
16
17 #if LV_USE_OS == LV_OS_CMSIS_RTOS2
18
19 #include "../misc/lv_log.h"
20
21 /*********************
22 * DEFINES
23 *********************/
24
25 /**********************
26 * TYPEDEFS
27 **********************/
28
29 /**********************
30 * STATIC PROTOTYPES
31 **********************/
32
33 /**********************
34 * STATIC VARIABLES
35 **********************/
36
37 /**********************
38 * MACROS
39 **********************/
40
41 /**********************
42 * GLOBAL FUNCTIONS
43 **********************/
44
lv_thread_init(lv_thread_t * thread,const char * const name,lv_thread_prio_t prio,void (* callback)(void *),size_t stack_size,void * user_data)45 lv_result_t lv_thread_init(lv_thread_t * thread, const char * const name, lv_thread_prio_t prio,
46 void (*callback)(void *), size_t stack_size,
47 void * user_data)
48 {
49 LV_UNUSED(name);
50 static const osPriority_t prio_map[] = {
51 [LV_THREAD_PRIO_LOWEST] = osPriorityLow,
52 [LV_THREAD_PRIO_LOW] = osPriorityBelowNormal,
53 [LV_THREAD_PRIO_MID] = osPriorityNormal,
54 [LV_THREAD_PRIO_HIGH] = osPriorityHigh,
55 [LV_THREAD_PRIO_HIGHEST] = osPriorityRealtime7,
56 };
57
58 osThreadAttr_t c_tThreadAttribute = {
59 .stack_size = stack_size,
60 .priority = prio_map[prio],
61 };
62
63 *thread = osThreadNew(callback, user_data, &c_tThreadAttribute);
64
65 if(NULL == *thread) {
66 LV_LOG_WARN("Error: Failed to create a cmsis-rtos2 thread.");
67 return LV_RESULT_INVALID;
68 }
69
70 return LV_RESULT_OK;
71
72 }
73
lv_thread_delete(lv_thread_t * thread)74 lv_result_t lv_thread_delete(lv_thread_t * thread)
75 {
76 osThreadDetach(*thread);
77 osStatus_t status = osThreadTerminate(*thread);
78 if(status == osOK) {
79 return LV_RESULT_OK;
80 }
81 return LV_RESULT_INVALID;
82 }
83
lv_mutex_init(lv_mutex_t * mutex)84 lv_result_t lv_mutex_init(lv_mutex_t * mutex)
85 {
86 const osMutexAttr_t Thread_Mutex_attr = {
87 "LVGLMutex",
88 osMutexRecursive | osMutexPrioInherit | osMutexRobust,
89 };
90
91 *mutex = osMutexNew(&Thread_Mutex_attr);
92 if(*mutex == NULL) {
93 LV_LOG_WARN("Error: failed to create cmsis-rtos mutex");
94 return LV_RESULT_INVALID;
95 }
96
97 return LV_RESULT_OK;
98
99 }
100
lv_mutex_lock(lv_mutex_t * mutex)101 lv_result_t lv_mutex_lock(lv_mutex_t * mutex)
102 {
103 osStatus_t status = osMutexAcquire(*mutex, 0U);
104 if(status != osOK) {
105 LV_LOG_WARN("Error: failed to lock cmsis-rtos2 mutex %d", (int)status);
106 return LV_RESULT_INVALID;
107 }
108
109 return LV_RESULT_OK;
110 }
111
lv_mutex_lock_isr(lv_mutex_t * mutex)112 lv_result_t lv_mutex_lock_isr(lv_mutex_t * mutex)
113 {
114 osStatus_t status = osMutexAcquire(*mutex, 0U);
115 if(status != osOK) {
116 LV_LOG_WARN("Error: failed to lock cmsis-rtos2 mutex in an ISR %d", (int)status);
117 return LV_RESULT_INVALID;
118 }
119
120 return LV_RESULT_OK;
121 }
122
lv_mutex_unlock(lv_mutex_t * mutex)123 lv_result_t lv_mutex_unlock(lv_mutex_t * mutex)
124 {
125 osStatus_t status = osMutexRelease(*mutex);
126 if(status != osOK) {
127 LV_LOG_WARN("Error: failed to release cmsis-rtos2 mutex %d", (int)status);
128 return LV_RESULT_INVALID;
129 }
130
131 return LV_RESULT_OK;
132 }
133
lv_mutex_delete(lv_mutex_t * mutex)134 lv_result_t lv_mutex_delete(lv_mutex_t * mutex)
135 {
136 osStatus_t status = osMutexDelete(*mutex);
137 if(status != osOK) {
138 LV_LOG_WARN("Error: failed to delete cmsis-rtos2 mutex %d", (int)status);
139 return LV_RESULT_INVALID;
140 }
141
142 return LV_RESULT_OK;
143 }
144
lv_thread_sync_init(lv_thread_sync_t * sync)145 lv_result_t lv_thread_sync_init(lv_thread_sync_t * sync)
146 {
147 *sync = osEventFlagsNew(NULL);
148 if(NULL == *sync) {
149 LV_LOG_WARN("Error: failed to create a cmsis-rtos2 EventFlag");
150 return LV_RESULT_INVALID;
151 }
152 return LV_RESULT_OK;
153 }
154
lv_thread_sync_wait(lv_thread_sync_t * sync)155 lv_result_t lv_thread_sync_wait(lv_thread_sync_t * sync)
156 {
157 uint32_t ret = osEventFlagsWait(*sync, 0x01, osFlagsWaitAny, osWaitForever);
158 if(ret & (1 << 31)) {
159 LV_LOG_WARN("Error: failed to wait a cmsis-rtos2 EventFlag %d", ret);
160 return LV_RESULT_INVALID;
161 }
162
163 return LV_RESULT_OK;
164 }
165
lv_thread_sync_signal(lv_thread_sync_t * sync)166 lv_result_t lv_thread_sync_signal(lv_thread_sync_t * sync)
167 {
168 uint32_t ret = osEventFlagsSet(*sync, 0x01);
169 if(ret & (1 << 31)) {
170 LV_LOG_WARN("Error: failed to set a cmsis-rtos2 EventFlag %d", ret);
171 return LV_RESULT_INVALID;
172 }
173
174 return LV_RESULT_OK;
175 }
176
lv_thread_sync_signal_isr(lv_thread_sync_t * sync)177 lv_result_t lv_thread_sync_signal_isr(lv_thread_sync_t * sync)
178 {
179 return lv_thread_sync_signal(sync);
180 }
181
lv_thread_sync_delete(lv_thread_sync_t * sync)182 lv_result_t lv_thread_sync_delete(lv_thread_sync_t * sync)
183 {
184 osStatus_t status = osEventFlagsDelete(*sync);
185 if(status != osOK) {
186 LV_LOG_WARN("Error: failed to delete a cmsis-rtos2 EventFlag %d", (int)status);
187 return LV_RESULT_INVALID;
188 }
189
190 return LV_RESULT_OK;
191 }
192
193 /**********************
194 * STATIC FUNCTIONS
195 **********************/
196
197 #endif /*LV_USE_OS == LV_OS_CMSIS_RTOS2*/
198
