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stm32 memory manager

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This commit is contained in:
fvanroie 2020-05-02 00:16:40 +02:00
parent 80b1c0e6fa
commit 81ad865456
1 changed files with 88 additions and 52 deletions
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140
src/hasp_hal.cpp
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@ -107,56 +107,7 @@ String halGetResetInfo()
#endif #endif
} }
#ifdef __arm__
// should use uinstd.h to define sbrk but Due causes a conflict
extern "C" char* sbrk(int incr);
#else // __ARM__
extern char *__brkval;
#endif // __arm__
int freeMemory() {
char top;
#ifdef __arm__
return &top - reinterpret_cast<char*>(sbrk(0));
#elif defined(CORE_TEENSY) || (ARDUINO > 103 && ARDUINO != 151)
return &top - __brkval;
#else // __arm__
return __brkval ? &top - __brkval : &top - __malloc_heap_start;
#endif // __arm__
}
uint8_t halGetHeapFragmentation()
{
#if defined(ARDUINO_ARCH_ESP32)
return (int8_t)(100.00f - (float)ESP.getMaxAllocHeap() * 100.00f / (float)ESP.getFreeHeap());
#elif defined(ARDUINO_ARCH_ESP8266)
return ESP.getHeapFragmentation();
#else
return 255;
#endif
}
size_t halGetMaxFreeBlock()
{
#if defined(ARDUINO_ARCH_ESP32)
return ESP.getMaxAllocHeap();
#elif defined(ARDUINO_ARCH_ESP8266)
return ESP.getMaxFreeBlockSize();
#else
return freeMemory();
#endif
}
size_t halGetFreeHeap(void)
{
#if defined(ARDUINO_ARCH_ESP32)
return ESP.getFreeHeap();
#elif defined(ARDUINO_ARCH_ESP8266)
return ESP.getFreeHeap();
#else
return 1;
#endif
}
String halGetCoreVersion() String halGetCoreVersion()
{ {
@ -193,8 +144,8 @@ String halGetChipModel()
case CHIP_ESP32S2: case CHIP_ESP32S2:
model += F("ESP32-S2"); model += F("ESP32-S2");
break; break;
#endif #endif
default: default:
model = F("Unknown ESP"); model = F("Unknown ESP");
} }
model += F(" rev"); model += F(" rev");
@ -202,4 +153,89 @@ String halGetChipModel()
#endif // ESP32 #endif // ESP32
return model; return model;
} }
/*******************************/
/* Memory Management Functions */
#if defined(STM32F4xx)
#include <malloc.h> // for mallinfo()
#include <unistd.h> // for sbrk()
int freeHighMemory()
{
char top;
#ifdef __arm__
return &top - reinterpret_cast<char *>(sbrk(0));
#elif defined(CORE_TEENSY) || (ARDUINO > 103 && ARDUINO != 151)
return &top - __brkval;
#else // __arm__
return __brkval ? &top - __brkval : &top - __malloc_heap_start;
#endif // __arm__
}
#endif
/*
extern char *fake_heap_end; // current heap start
extern char *fake_heap_start; // current heap end
char* getHeapStart() {
return fake_heap_start;
}
char* getHeapEnd() {
return (char*)sbrk(0);
}
char* getHeapLimit() {
return fake_heap_end;
}
int getMemUsed() { // returns the amount of used memory in bytes
struct mallinfo mi = mallinfo();
return mi.uordblks;
}
int getMemFree() { // returns the amount of free memory in bytes
struct mallinfo mi = mallinfo();
return mi.fordblks + freeHighMemory();
} */
size_t halGetMaxFreeBlock()
{
#if defined(ARDUINO_ARCH_ESP32)
return ESP.getMaxAllocHeap();
#elif defined(ARDUINO_ARCH_ESP8266)
return ESP.getMaxFreeBlockSize();
#else
return freeHighMemory();
#endif
}
size_t halGetFreeHeap(void)
{
#if defined(ARDUINO_ARCH_ESP32)
return ESP.getFreeHeap();
#elif defined(ARDUINO_ARCH_ESP8266)
return ESP.getFreeHeap();
#else
struct mallinfo chuncks = mallinfo();
// fordblks
// This is the total size of memory occupied by free (not in use) chunks.
return chuncks.fordblks + freeHighMemory();
#endif
}
uint8_t halGetHeapFragmentation()
{
#if defined(ARDUINO_ARCH_ESP32)
return (int8_t)(100.00f - (float)ESP.getMaxAllocHeap() * 100.00f / (float)ESP.getFreeHeap());
#elif defined(ARDUINO_ARCH_ESP8266)
return ESP.getHeapFragmentation();
#else
return (int8_t)(100.00f - (float)freeHighMemory() * 100.00f / (float)halGetFreeHeap());
#endif
}