Пример #1
0
/* aica_chn_halt - write to spu to halt playback */
static void aica_chn_halt(void)
{
	unsigned long flags;
	spu_write_wait();
	local_irq_save(flags);
	writel(AICA_CMD_KICK | AICA_CMD_STOP, (u32 *) AICA_CONTROL_POINT);
	local_irq_restore(flags);
}
Пример #2
0
/* spu_enable - set spu registers to enable sound output */
static void spu_enable(void)
{
	unsigned long flags;
	u32 regval = readl(ARM_RESET_REGISTER);
	regval &= ~1;
	spu_write_wait();
	local_irq_save(flags);
	writel(regval, ARM_RESET_REGISTER);
	local_irq_restore(flags);
}
Пример #3
0
/* spu_memload - write to SPU address space */
static void spu_memload(u32 toi, void *from, int length)
{
	unsigned long flags;
	u32 *froml = from;
	u32 __iomem *to = (u32 __iomem *) (SPU_MEMORY_BASE + toi);
	int i;
	u32 val;
	length = DIV_ROUND_UP(length, 4);
	spu_write_wait();
	for (i = 0; i < length; i++) {
		if (!(i % 8))
			spu_write_wait();
		val = *froml;
		local_irq_save(flags);
		writel(val, to);
		local_irq_restore(flags);
		froml++;
		to++;
	}
}
Пример #4
0
/* spu_disable - set spu registers to stop sound output */
static void spu_disable(void)
{
	int i;
	unsigned long flags;
	u32 regval;
	spu_write_wait();
	regval = readl(ARM_RESET_REGISTER);
	regval |= 1;
	spu_write_wait();
	local_irq_save(flags);
	writel(regval, ARM_RESET_REGISTER);
	local_irq_restore(flags);
	for (i = 0; i < 64; i++) {
		spu_write_wait();
		regval = readl(SPU_REGISTER_BASE + (i * 0x80));
		regval = (regval & ~0x4000) | 0x8000;
		spu_write_wait();
		local_irq_save(flags);
		writel(regval, SPU_REGISTER_BASE + (i * 0x80));
		local_irq_restore(flags);
	}
}
Пример #5
0
/* spu_memset - write to memory in SPU address space */
static void spu_memset(u32 toi, u32 what, int length)
{
	int i;
	unsigned long flags;
	snd_assert(length % 4 == 0, return);
	for (i = 0; i < length; i++) {
		if (!(i % 8))
			spu_write_wait();
		local_irq_save(flags);
		writel(what, toi + SPU_MEMORY_BASE);
		local_irq_restore(flags);
		toi++;
	}
}