1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
|
/*
* This file is subject to the terms of the GFX License. If a copy of
* the license was not distributed with this file, you can obtain one at:
*
* http://ugfx.org/license.html
*/
#include "../../gfx.h"
#include <string.h>
#if GFX_USE_OS_FREERTOS
#if INCLUDE_vTaskDelay != 1
#error "GOS: INCLUDE_vTaskDelay must be defined in FreeRTOSConfig.h"
#endif
#if configUSE_MUTEXES != 1
#error "GOS: configUSE_MUTEXES must be defined in FreeRTOSConfig.h"
#endif
#if configUSE_COUNTING_SEMAPHORES != 1
#error "GOS: configUSE_COUNTING_SEMAPHORES must be defined in FreeRTOSConfig.h"
#endif
void _gosInit(void)
{
#if !GFX_OS_NO_INIT
#error "GOS: Operating System initialization for FreeRTOS is not yet implemented in uGFX. Please set GFX_OS_NO_INIT to TRUE in your gfxconf.h"
#endif
#if !GFX_OS_INIT_NO_WARNING
#warning "GOS: Operating System initialization has been turned off. Make sure you call vTaskStartScheduler() before gfxInit() in your application!"
#endif
}
void _gosDeinit(void)
{
}
void* gfxRealloc(void *ptr, size_t oldsz, size_t newsz)
{
void *np;
if (newsz <= oldsz)
return ptr;
np = gfxAlloc(newsz);
if (!np)
return 0;
if (oldsz) {
memcpy(np, ptr, oldsz);
vPortFree(ptr);
}
return np;
}
void gfxSleepMilliseconds(delaytime_t ms)
{
const portTickType ticks = ms / portTICK_PERIOD_MS;
vTaskDelay(ticks);
}
void gfxSleepMicroseconds(delaytime_t ms)
{
const portTickType ticks = (ms / 1000) / portTICK_PERIOD_MS;
// delay milli seconds
vTaskDelay(ticks);
// microsecond resolution delay is not supported in FreeRTOS
// vUsDelay(ms%1000);
}
portTickType MS2ST(portTickType ms)
{
return (ms / portTICK_PERIOD_MS);
}
void gfxMutexInit(xSemaphoreHandle *s)
{
*s = xSemaphoreCreateMutex();
#if GFX_FREERTOS_USE_TRACE
vTraceSetMutexName(*s,"uGFXMutex"); // for FreeRTOS+Trace debug
#endif
}
void gfxSemInit(gfxSem* psem, semcount_t val, semcount_t limit)
{
if (val > limit)
val = limit;
psem->counter = val;
psem->limit = limit;
psem->sem = xSemaphoreCreateCounting(limit,val);
#if GFX_FREERTOS_USE_TRACE
vTraceSetSemaphoreName(psem->sem, "uGFXSema"); // for FreeRTOS+Trace debug
#endif
}
void gfxSemDestroy(gfxSem* psem)
{
vSemaphoreDelete(psem->sem);
}
bool_t gfxSemWait(gfxSem* psem, delaytime_t ms)
{
psem->counter--;
if (xSemaphoreTake(psem->sem, MS2ST(ms)) == pdPASS)
return TRUE;
psem->counter++;
return FALSE;
}
bool_t gfxSemWaitI(gfxSem* psem)
{
portBASE_TYPE xHigherPriorityTaskWoken = pdFALSE;
psem->counter--;
if (xSemaphoreTakeFromISR(psem->sem,&xHigherPriorityTaskWoken) == pdTRUE)
return TRUE;
psem->counter++;
return FALSE;
}
void gfxSemSignal(gfxSem* psem)
{
taskENTER_CRITICAL();
if (psem->counter < psem->limit) {
psem->counter++;
xSemaphoreGive(psem->sem);
}
taskYIELD();
taskEXIT_CRITICAL();
}
void gfxSemSignalI(gfxSem* psem)
{
portBASE_TYPE xHigherPriorityTaskWoken = pdFALSE;
if (psem->counter < psem->limit) {
psem->counter++;
xSemaphoreGiveFromISR(psem->sem,&xHigherPriorityTaskWoken);
}
}
gfxThreadHandle gfxThreadCreate(void *stackarea, size_t stacksz, threadpriority_t prio, DECLARE_THREAD_FUNCTION((*fn),p), void *param)
{
xTaskHandle task = NULL;
stacksz = (size_t)stackarea;
if (stacksz < configMINIMAL_STACK_SIZE)
stacksz = configMINIMAL_STACK_SIZE;
if (xTaskCreate(fn, "uGFX_TASK", stacksz, param, prio, &task )!= pdPASS) {
for (;;);
}
return task;
}
#endif /* GFX_USE_OS_FREERTOS */
|
