[deliverable/linux.git] / include / sound / hda_chmap.h

/*
 * For multichannel support
 */

#ifndef __SOUND_HDA_CHMAP_H
#define __SOUND_HDA_CHMAP_H

#include <sound/hdaudio.h>

struct hdac_cea_channel_speaker_allocation {
	int ca_index;
	int speakers[8];

	/* derived values, just for convenience */
	int channels;
	int spk_mask;
};
struct hdac_chmap;

struct hdac_chmap_ops {
	/*
	 * Helpers for producing the channel map TLVs. These can be overridden
	 * for devices that have non-standard mapping requirements.
	 */
	int (*chmap_cea_alloc_validate_get_type)(struct hdac_chmap *chmap,
		struct hdac_cea_channel_speaker_allocation *cap, int channels);
	void (*cea_alloc_to_tlv_chmap)
		(struct hdac_cea_channel_speaker_allocation *cap,
		unsigned int *chmap, int channels);

	/* check that the user-given chmap is supported */
	int (*chmap_validate)(int ca, int channels, unsigned char *chmap);

	void (*get_chmap)(struct hdac_device *hdac, int pcm_idx,
					unsigned char *chmap);
	void (*set_chmap)(struct hdac_device *hdac, int pcm_idx,
			unsigned char *chmap, int prepared);
	bool (*is_pcm_attached)(struct hdac_device *hdac, int pcm_idx);

	/* get and set channel assigned to each HDMI ASP (audio sample packet) slot */
	int (*pin_get_slot_channel)(struct hdac_device *codec,
			hda_nid_t pin_nid, int asp_slot);
	int (*pin_set_slot_channel)(struct hdac_device *codec,
			hda_nid_t pin_nid, int asp_slot, int channel);
	void (*set_channel_count)(struct hdac_device *codec,
				hda_nid_t cvt_nid, int chs);
};

struct hdac_chmap {
	unsigned int channels_max; /* max over all cvts */
	struct hdac_chmap_ops ops;
	struct hdac_device *hdac;
};

void snd_hdac_register_chmap_ops(struct hdac_device *hdac,
				struct hdac_chmap *chmap);
#endif /* __SOUND_HDA_CHMAP_H */
Commit	Line	Data
67b90cb8 SP	1	/*
	2	* For multichannel support
	3	*/
	4
	5	#ifndef __SOUND_HDA_CHMAP_H
	6	#define __SOUND_HDA_CHMAP_H
	7
	8	#include <sound/hdaudio.h>
	9
f302240d	10	struct hdac_cea_channel_speaker_allocation {
67b90cb8 SP	11	int ca_index;
	12	int speakers[8];
	13
	14	/* derived values, just for convenience */
	15	int channels;
	16	int spk_mask;
	17	};
	18	struct hdac_chmap;
	19
	20	struct hdac_chmap_ops {
	21	/*
	22	* Helpers for producing the channel map TLVs. These can be overridden
	23	* for devices that have non-standard mapping requirements.
	24	*/
	25	int (chmap_cea_alloc_validate_get_type)(struct hdac_chmap chmap,
f302240d	26	struct hdac_cea_channel_speaker_allocation *cap, int channels);
67b90cb8	27	void (*cea_alloc_to_tlv_chmap)
f302240d	28	(struct hdac_cea_channel_speaker_allocation *cap,
67b90cb8 SP	29	unsigned int *chmap, int channels);
	30
	31	/* check that the user-given chmap is supported */
	32	int (chmap_validate)(int ca, int channels, unsigned char chmap);
9b3dc8aa SP	33
	34	void (get_chmap)(struct hdac_device hdac, int pcm_idx,
	35	unsigned char *chmap);
	36	void (set_chmap)(struct hdac_device hdac, int pcm_idx,
	37	unsigned char *chmap, int prepared);
	38	bool (is_pcm_attached)(struct hdac_device hdac, int pcm_idx);
739ffee9 SP	39
	40	/* get and set channel assigned to each HDMI ASP (audio sample packet) slot */
	41	int (pin_get_slot_channel)(struct hdac_device codec,
	42	hda_nid_t pin_nid, int asp_slot);
	43	int (pin_set_slot_channel)(struct hdac_device codec,
	44	hda_nid_t pin_nid, int asp_slot, int channel);
	45	void (set_channel_count)(struct hdac_device codec,
	46	hda_nid_t cvt_nid, int chs);
67b90cb8 SP	47	};
	48
	49	struct hdac_chmap {
	50	unsigned int channels_max; /* max over all cvts */
	51	struct hdac_chmap_ops ops;
	52	struct hdac_device *hdac;
	53	};
	54
739ffee9 SP	55	void snd_hdac_register_chmap_ops(struct hdac_device *hdac,
739ffee9 SP	56	struct hdac_chmap *chmap);
67b90cb8	57	#endif /* __SOUND_HDA_CHMAP_H */