Spinlock APIs for concurrent Host/Firmware shared memory access

Introduction

Functions
void	bsp_hwspinlock_init (void)
	Initialize SOC spinlock, enable clocks and init spinlock instance 0 through 7 to unlocked state. More...
uint32_t	bsp_hwspinlock_lock (int num)
	Acquire selected spinlock instance. More...
void	bsp_hwspinlock_unlock (int num)
	Release selected spinlock instance. More...

Function Documentation

bsp_hwspinlock_init()

void bsp_hwspinlock_init

(

void

)

Initialize SOC spinlock, enable clocks and init spinlock instance 0 through 7 to unlocked state.

bsp_hwspinlock_lock()

uint32_t bsp_hwspinlock_lock

(

int

num

)

Acquire selected spinlock instance.

Parameters

num	Spinlock instance(0: DC latch)

Return values

0	success 1: already locked

bsp_hwspinlock_unlock()

void bsp_hwspinlock_unlock

(

int

num

)

Release selected spinlock instance.

Parameters

num	Spinlock instance