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author | Mark Brown <broonie@kernel.org> | 2016-05-13 13:27:16 (GMT) |
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committer | Mark Brown <broonie@kernel.org> | 2016-05-13 13:27:16 (GMT) |
commit | 515511a7920c69aebf7f5fef0cb8e1df6767f34c (patch) | |
tree | 2cd9ac2853bb11aa2eeb766bb18c0b1846d8d941 /include | |
parent | 180bc41ad11b9a7ec5b420fbcef6570163d09204 (diff) | |
parent | 8f658815da156a9239b98b34e5ba1d3db71a2f6e (diff) | |
download | linux-515511a7920c69aebf7f5fef0cb8e1df6767f34c.tar.xz |
Merge remote-tracking branch 'asoc/topic/hdmi' into asoc-next
Diffstat (limited to 'include')
-rw-r--r-- | include/sound/hdmi-codec.h | 100 | ||||
-rw-r--r-- | include/sound/pcm_iec958.h | 2 |
2 files changed, 102 insertions, 0 deletions
diff --git a/include/sound/hdmi-codec.h b/include/sound/hdmi-codec.h new file mode 100644 index 0000000..fc3a481 --- /dev/null +++ b/include/sound/hdmi-codec.h @@ -0,0 +1,100 @@ +/* + * hdmi-codec.h - HDMI Codec driver API + * + * Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com + * + * Author: Jyri Sarha <jsarha@ti.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * 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. + */ + +#ifndef __HDMI_CODEC_H__ +#define __HDMI_CODEC_H__ + +#include <linux/hdmi.h> +#include <drm/drm_edid.h> +#include <sound/asoundef.h> +#include <uapi/sound/asound.h> + +/* + * Protocol between ASoC cpu-dai and HDMI-encoder + */ +struct hdmi_codec_daifmt { + enum { + HDMI_I2S, + HDMI_RIGHT_J, + HDMI_LEFT_J, + HDMI_DSP_A, + HDMI_DSP_B, + HDMI_AC97, + HDMI_SPDIF, + } fmt; + int bit_clk_inv:1; + int frame_clk_inv:1; + int bit_clk_master:1; + int frame_clk_master:1; +}; + +/* + * HDMI audio parameters + */ +struct hdmi_codec_params { + struct hdmi_audio_infoframe cea; + struct snd_aes_iec958 iec; + int sample_rate; + int sample_width; + int channels; +}; + +struct hdmi_codec_ops { + /* + * Called when ASoC starts an audio stream setup. + * Optional + */ + int (*audio_startup)(struct device *dev); + + /* + * Configures HDMI-encoder for audio stream. + * Mandatory + */ + int (*hw_params)(struct device *dev, + struct hdmi_codec_daifmt *fmt, + struct hdmi_codec_params *hparms); + + /* + * Shuts down the audio stream. + * Mandatory + */ + void (*audio_shutdown)(struct device *dev); + + /* + * Mute/unmute HDMI audio stream. + * Optional + */ + int (*digital_mute)(struct device *dev, bool enable); + + /* + * Provides EDID-Like-Data from connected HDMI device. + * Optional + */ + int (*get_eld)(struct device *dev, uint8_t *buf, size_t len); +}; + +/* HDMI codec initalization data */ +struct hdmi_codec_pdata { + const struct hdmi_codec_ops *ops; + uint i2s:1; + uint spdif:1; + int max_i2s_channels; +}; + +#define HDMI_CODEC_DRV_NAME "hdmi-audio-codec" + +#endif /* __HDMI_CODEC_H__ */ diff --git a/include/sound/pcm_iec958.h b/include/sound/pcm_iec958.h index 0eed397..36f023a 100644 --- a/include/sound/pcm_iec958.h +++ b/include/sound/pcm_iec958.h @@ -6,4 +6,6 @@ int snd_pcm_create_iec958_consumer(struct snd_pcm_runtime *runtime, u8 *cs, size_t len); +int snd_pcm_create_iec958_consumer_hw_params(struct snd_pcm_hw_params *params, + u8 *cs, size_t len); #endif |