C++ (Cpp) spdif_select_ori_sample_freq Beispiele

Beispiel #1

static int jz_spdif_set_rate(struct device *aic ,struct jz_aic* jz_aic, unsigned long sample_rate){
	unsigned long sysclk;
	struct clk* cgu_aic_clk = jz_aic->clk;
	__i2s_stop_bitclk(aic);
#ifndef CONFIG_PRODUCT_X1000_FPGA
	sysclk = calculate_cgu_aic_rate(clk_get_rate(cgu_aic_clk->parent), &sample_rate);
	clk_set_rate(cgu_aic_clk, (sysclk*2));
	jz_aic->sysclk = clk_get_rate(cgu_aic_clk);

	if (jz_aic->sysclk > (sysclk*2)) {
		printk("external codec set sysclk fail aic = %ld want is %ld .\n",jz_aic->sysclk,sysclk);
		return -1;
	}

	spdif_set_clk(jz_aic, jz_aic->sysclk/2, sample_rate);
#else
	audio_write((253<<13)|(4482),I2SCDR_PRE);
	*(volatile unsigned int*)0xb0000070 = *(volatile unsigned int*)0xb0000070;
	audio_write((253<<13)|(4482)|(1<<29),I2SCDR_PRE);
	audio_write(0,I2SDIV_PRE);
#endif
	__i2s_start_bitclk(aic);
	spdif_select_ori_sample_freq(aic,sample_rate);
	spdif_select_sample_freq(aic,sample_rate);

	return sample_rate;
}

Beispiel #2

static int jz_spdif_set_rate(struct device *aic ,struct jz_aic* jz_aic, unsigned long sample_rate){
	struct clk* cgu_aic_clk = jz_aic->clk;
	__i2s_stop_bitclk(aic);
	clk_set_rate(cgu_aic_clk, sample_rate);
	writel(0xa,I2S_CPM_VALID);
	__i2s_start_bitclk(aic);
	spdif_select_ori_sample_freq(aic,sample_rate);
	spdif_select_sample_freq(aic,sample_rate);

	return sample_rate;
}