Blame - include/sound/hda_chmap.h - kernel/msm-4.9

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Subhransu S. Prusty	67b90cb	2016-03-04 19:59:46 +0530	[diff] [blame]	1	/*
				2	* For multichannel support
				3	*/
				4
				5	#ifndef __SOUND_HDA_CHMAP_H
				6	#define __SOUND_HDA_CHMAP_H
				7
Subhransu S. Prusty	2f6e8a8	2016-03-04 19:59:51 +0530	[diff] [blame]	8	#include <sound/pcm.h>
Subhransu S. Prusty	67b90cb	2016-03-04 19:59:46 +0530	[diff] [blame]	9	#include <sound/hdaudio.h>
				10
Subhransu S. Prusty	828cb4e	2016-03-04 19:59:50 +0530	[diff] [blame]	11
				12	#define SND_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE 80
				13
Subhransu S. Prusty	f302240	2016-03-04 19:59:48 +0530	[diff] [blame]	14	struct hdac_cea_channel_speaker_allocation {
Subhransu S. Prusty	67b90cb	2016-03-04 19:59:46 +0530	[diff] [blame]	15	int ca_index;
				16	int speakers[8];
				17
				18	/* derived values, just for convenience */
				19	int channels;
				20	int spk_mask;
				21	};
				22	struct hdac_chmap;
				23
				24	struct hdac_chmap_ops {
				25	/*
				26	* Helpers for producing the channel map TLVs. These can be overridden
				27	* for devices that have non-standard mapping requirements.
				28	*/
				29	int (chmap_cea_alloc_validate_get_type)(struct hdac_chmap chmap,
Subhransu S. Prusty	f302240	2016-03-04 19:59:48 +0530	[diff] [blame]	30	struct hdac_cea_channel_speaker_allocation *cap, int channels);
Subhransu S. Prusty	828cb4e	2016-03-04 19:59:50 +0530	[diff] [blame]	31	void (cea_alloc_to_tlv_chmap)(struct hdac_chmap hchmap,
				32	struct hdac_cea_channel_speaker_allocation *cap,
Subhransu S. Prusty	67b90cb	2016-03-04 19:59:46 +0530	[diff] [blame]	33	unsigned int *chmap, int channels);
				34
				35	/* check that the user-given chmap is supported */
Subhransu S. Prusty	828cb4e	2016-03-04 19:59:50 +0530	[diff] [blame]	36	int (chmap_validate)(struct hdac_chmap hchmap, int ca,
				37	int channels, unsigned char *chmap);
Subhransu S. Prusty	9b3dc8a	2016-03-04 19:59:47 +0530	[diff] [blame]	38
				39	void (get_chmap)(struct hdac_device hdac, int pcm_idx,
				40	unsigned char *chmap);
				41	void (set_chmap)(struct hdac_device hdac, int pcm_idx,
				42	unsigned char *chmap, int prepared);
				43	bool (is_pcm_attached)(struct hdac_device hdac, int pcm_idx);
Subhransu S. Prusty	739ffee	2016-03-04 19:59:49 +0530	[diff] [blame]	44
				45	/* get and set channel assigned to each HDMI ASP (audio sample packet) slot */
				46	int (pin_get_slot_channel)(struct hdac_device codec,
				47	hda_nid_t pin_nid, int asp_slot);
				48	int (pin_set_slot_channel)(struct hdac_device codec,
				49	hda_nid_t pin_nid, int asp_slot, int channel);
				50	void (set_channel_count)(struct hdac_device codec,
				51	hda_nid_t cvt_nid, int chs);
Subhransu S. Prusty	67b90cb	2016-03-04 19:59:46 +0530	[diff] [blame]	52	};
				53
				54	struct hdac_chmap {
				55	unsigned int channels_max; /* max over all cvts */
				56	struct hdac_chmap_ops ops;
				57	struct hdac_device *hdac;
				58	};
				59
Subhransu S. Prusty	739ffee	2016-03-04 19:59:49 +0530	[diff] [blame]	60	void snd_hdac_register_chmap_ops(struct hdac_device *hdac,
				61	struct hdac_chmap *chmap);
Subhransu S. Prusty	bb63f72	2016-03-04 19:59:52 +0530	[diff] [blame]	62	int snd_hdac_channel_allocation(struct hdac_device *hdac, int spk_alloc,
Subhransu S. Prusty	2f6e8a8	2016-03-04 19:59:51 +0530	[diff] [blame]	63	int channels, bool chmap_set,
				64	bool non_pcm, unsigned char *map);
Subhransu S. Prusty	bb63f72	2016-03-04 19:59:52 +0530	[diff] [blame]	65	int snd_hdac_get_active_channels(int ca);
				66	void snd_hdac_setup_channel_mapping(struct hdac_chmap *chmap,
Subhransu S. Prusty	2f6e8a8	2016-03-04 19:59:51 +0530	[diff] [blame]	67	hda_nid_t pin_nid, bool non_pcm, int ca,
				68	int channels, unsigned char *map,
				69	bool chmap_set);
Subhransu S. Prusty	bb63f72	2016-03-04 19:59:52 +0530	[diff] [blame]	70	void snd_hdac_print_channel_allocation(int spk_alloc, char *buf, int buflen);
				71	struct hdac_cea_channel_speaker_allocation *snd_hdac_get_ch_alloc_from_ca(int ca);
				72	int snd_hdac_chmap_to_spk_mask(unsigned char c);
				73	int snd_hdac_spk_to_chmap(int spk);
Subhransu S. Prusty	2f6e8a8	2016-03-04 19:59:51 +0530	[diff] [blame]	74	int snd_hdac_add_chmap_ctls(struct snd_pcm *pcm, int pcm_idx,
				75	struct hdac_chmap *chmap);
Subhransu S. Prusty	67b90cb	2016-03-04 19:59:46 +0530	[diff] [blame]	76	#endif /* __SOUND_HDA_CHMAP_H */