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#include "ctrlEnv/mvCtrlEnvLib.h"
#include "ctrlEnv/sys/mvCpuIf.h"
#include "cpu/mvCpu.h"
#include "ctrlEnv/mvSemaphore.h"
#include <linux/spinlock.h>

MV_BOOL mvSemaLock(MV_32 num)
{
#ifdef CONFIG_ALP_HW_SEMAPHORE_WA
	BUG_ON(num >= MV_MAX_SEMA);
	arch_spin_lock((arch_spinlock_t *)GLOBAL_SCRATCH_PAD(num));
#else
	MV_U32 tmp;
	MV_U32 cpuId;
	if (num > MV_MAX_SEMA)
	{
		mvOsPrintf("Invalid semaphore number\n");
		return MV_FALSE;
	}
	cpuId = whoAmI();
	do
	{
		tmp = MV_REG_BYTE_READ(MV_SEMA_REG_BASE+num);
	} while ((tmp & 0xFF) != cpuId);
#endif
	return MV_TRUE;
}

MV_BOOL mvSemaTryLock(MV_32 num)
{
#ifdef CONFIG_ALP_HW_SEMAPHORE_WA
	BUG_ON(num >= MV_MAX_SEMA);
	return arch_spin_trylock((arch_spinlock_t *)GLOBAL_SCRATCH_PAD(num));
#else
	MV_U32 tmp;
	if (num > MV_MAX_SEMA)
	{
		mvOsPrintf("Invalid semaphore number\n");
		return MV_FALSE;
	}
	tmp = MV_REG_BYTE_READ(MV_SEMA_REG_BASE+num);
	if ((tmp & 0xFF) != whoAmI())
	{
		return MV_FALSE;
	}
	else
		return MV_TRUE;
#endif
}

MV_BOOL mvSemaUnlock(MV_32 num)
{
#ifdef CONFIG_ALP_HW_SEMAPHORE_WA
	BUG_ON(num >= MV_MAX_SEMA);
	arch_spin_unlock((arch_spinlock_t *)GLOBAL_SCRATCH_PAD(num));
#else
	if (num > MV_MAX_SEMA)
	{
		mvOsPrintf("Invalid semaphore number\n");
		return MV_FALSE;
	}
	MV_REG_BYTE_WRITE(MV_SEMA_REG_BASE+(num), 0xFF);
#endif
	return MV_TRUE;
}

MV_32 mvReadAmpReg(int regId)
{
#ifdef CONFIG_ALP_HW_SEMAPHORE_WA
	return MV_REG_READ((GLOBAL_SCRATCH_PAD_0 + (32 * regId)));
#else
	return MV_REG_READ(MV_AMP_GLOBAL_REG(regId));
#endif
}

MV_32 mvWriteAmpReg(int regId, MV_32 value)
{
#ifdef CONFIG_ALP_HW_SEMAPHORE_WA
	return MV_REG_WRITE((GLOBAL_SCRATCH_PAD_0 + (32 * regId)), value);
#else
	return MV_REG_WRITE(MV_AMP_GLOBAL_REG(regId), value);
#endif
}