sound/soc/fsl/imx-hdmi.h

/*
 * Copyright (C) 2011-2014 Freescale Semiconductor, Inc.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#ifndef __IMX_HDMI_H
#define __IMX_HDMI_H

struct imx_hdmi_sdma_params {
	dma_addr_t phyaddr;
	u32 buffer_num;
	int dma;
};

struct imx_hdmi {
	struct snd_soc_dai_driver cpu_dai_drv;
	struct platform_device *codec_dev;
	struct platform_device *dma_dev;
	struct platform_device *pdev;
	struct clk *isfr_clk;
	struct clk *iahb_clk;
	struct clk *mipi_core_clk;
};

#define HDMI_MAX_RATES 7
#define HDMI_MAX_SAMPLE_SIZE 3
#define HDMI_MAX_CHANNEL_CONSTRAINTS 4

#define MXC_HDMI_RATES_PLAYBACK \
	(SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | \
	 SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 | \
	 SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000)

#define MXC_HDMI_FORMATS_PLAYBACK \
	(SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE)

union hdmi_audio_header_t {
	uint64_t  U;
	struct {
		unsigned consumer:1;
		unsigned linear_pcm:1;
		unsigned copyright:1;
		unsigned pre_emphasis:3;
		unsigned mode:2;

		unsigned category_code:8;

		unsigned source:4;
		unsigned channel:4;

		unsigned sample_freq:4;
		unsigned clock_acc:2;
		unsigned reserved0:2;

		unsigned word_length:4;
		unsigned org_sample_freq:4;

		unsigned cgms_a:2;
		unsigned reserved1:6;

		unsigned reserved2:8;

		unsigned reserved3:8;
	} B;
	unsigned char status[8];
};

union hdmi_audio_dma_data_t {
	uint32_t  U;
	struct {
		unsigned data:24;
		unsigned v:1;
		unsigned u:1;
		unsigned c:1;
		unsigned p:1;
		unsigned b:1;
		unsigned reserved:3;
	} B;
};

extern union hdmi_audio_header_t iec_header;

#define hdmi_audio_writeb(reg, bit, val) \
	do { \
		hdmi_mask_writeb(val, HDMI_ ## reg, \
			HDMI_ ## reg ## _ ## bit ## _OFFSET, \
			HDMI_ ## reg ## _ ## bit ## _MASK); \
		pr_debug("Set reg: HDMI_" #reg " (0x%x) "\
			"bit: HDMI_" #reg "_" #bit " (%d) to val: %x\n", \
			HDMI_ ## reg, HDMI_ ## reg ## _ ## bit ## _OFFSET, val); \
	} while (0)

#endif /* __IMX_HDMI_H */