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/*
* 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
*/
/**
* @file include/gos/raw32.h
* @brief GOS - Operating System Support header file for any 32 bit processor in bare-metal mode
*/
/**
* The raw32 GOS implementation supports any 32 bit processor with or without an
* underlying operating system. It uses cooperative multi-tasking. Be careful
* when writing device drivers not to disturb the assumptions this creates by performing
* call-backs to uGFX code unless you define the INTERRUPTS_OFF() and INTERRUPTS_ON() macros.
* It still requires some C runtime library support...
* enough startup to initialise the stack, interrupts, static data etc and call main().
* setjmp() and longjmp() - for threading
* memcpy() - for heap and threading
* malloc(), realloc and free() - if GOS_RAW_HEAP_SIZE == 0
*
* You must also define the following routines in your own code so that timing functions will work...
* systemticks_t gfxSystemTicks(void);
* systemticks_t gfxMillisecondsToTicks(delaytime_t ms);
*/
#ifndef _GOS_RAW32_H
#define _GOS_RAW32_H
#if GFX_USE_OS_RAW32
/*===========================================================================*/
/* Special Macros just for a Raw implementation */
/*===========================================================================*/
/**
* @brief Set the maximum size of the heap.
* @note If set to 0 then the C runtime library malloc() and free() are used.
*/
#ifndef GOS_RAW_HEAP_SIZE
#define GOS_RAW_HEAP_SIZE 0
#endif
/*===========================================================================*/
/* Type definitions */
/*===========================================================================*/
typedef unsigned char bool_t;
typedef char int8_t;
typedef unsigned char uint8_t;
typedef short int16_t;
typedef unsigned short uint16_t;
typedef int int32_t;
typedef unsigned int uint32_t;
typedef uint32_t size_t;
typedef uint32_t delaytime_t;
typedef uint32_t systemticks_t;
typedef short semcount_t;
typedef int threadreturn_t;
typedef int threadpriority_t;
#define DECLARE_THREAD_FUNCTION(fnName, param) threadreturn_t fnName(void *param)
#define DECLARE_THREAD_STACK(name, sz) uint8_t name[sz];
#define TIME_IMMEDIATE 0
#define TIME_INFINITE ((delaytime_t)-1)
#define MAX_SEMAPHORE_COUNT 0x7FFF
#define LOW_PRIORITY 0
#define NORMAL_PRIORITY 1
#define HIGH_PRIORITY 2
typedef struct {
semcount_t cnt;
semcount_t limit;
} gfxSem;
typedef uint32_t gfxMutex;
typedef void * gfxThreadHandle;
#define gfxThreadClose(thread)
#define gfxMutexDestroy(pmutex)
#define gfxSemDestroy(psem)
#define gfxSemCounter(psem) ((psem)->cnt)
#define gfxSemCounterI(psem) ((psem)->cnt)
#ifdef __cplusplus
extern "C" {
#endif
#if GOS_RAW_HEAP_SIZE != 0
void gfxAddHeapBlock(void *ptr, size_t sz);
#endif
void gfxHalt(const char *msg);
void gfxExit(void);
void *gfxAlloc(size_t sz);
void *gfxRealloc(void *ptr, size_t oldsz, size_t newsz);
void gfxFree(void *ptr);
void gfxYield(void);
void gfxSleepMilliseconds(delaytime_t ms);
void gfxSleepMicroseconds(delaytime_t ms);
systemticks_t gfxSystemTicks(void);
systemticks_t gfxMillisecondsToTicks(delaytime_t ms);
void gfxSystemLock(void);
void gfxSystemUnlock(void);
void gfxMutexInit(gfxMutex *pmutex);
void gfxMutexEnter(gfxMutex *pmutex);
void gfxMutexExit(gfxMutex *pmutex);
void gfxSemInit(gfxSem *psem, semcount_t val, semcount_t limit);
bool_t gfxSemWait(gfxSem *psem, delaytime_t ms);
void gfxSemSignal(gfxSem *psem);
void gfxSemSignalI(gfxSem *psem);
gfxThreadHandle gfxThreadCreate(void *stackarea, size_t stacksz, threadpriority_t prio, DECLARE_THREAD_FUNCTION((*fn),p), void *param);
threadreturn_t gfxThreadWait(gfxThreadHandle thread);
gfxThreadHandle gfxThreadMe(void);
#ifdef __cplusplus
}
#endif
#endif /* GFX_USE_OS_RAW32 */
#endif /* _GOS_RAW32_H */
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