[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>


#define SND_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE 80

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_chmap *hchmap,
		struct hdac_cea_channel_speaker_allocation *cap,
		unsigned int *chmap, int channels);

	/* check that the user-given chmap is supported */
	int (*chmap_validate)(struct hdac_chmap *hchmap, 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
828cb4ed SP	10
	11	#define SND_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE 80
	12
f302240d	13	struct hdac_cea_channel_speaker_allocation {
67b90cb8 SP	14	int ca_index;
	15	int speakers[8];
	16
	17	/* derived values, just for convenience */
	18	int channels;
	19	int spk_mask;
	20	};
	21	struct hdac_chmap;
	22
	23	struct hdac_chmap_ops {
	24	/*
	25	* Helpers for producing the channel map TLVs. These can be overridden
	26	* for devices that have non-standard mapping requirements.
	27	*/
	28	int (chmap_cea_alloc_validate_get_type)(struct hdac_chmap chmap,
f302240d	29	struct hdac_cea_channel_speaker_allocation *cap, int channels);
828cb4ed SP	30	void (cea_alloc_to_tlv_chmap)(struct hdac_chmap hchmap,
828cb4ed SP	31	struct hdac_cea_channel_speaker_allocation *cap,
67b90cb8 SP	32	unsigned int *chmap, int channels);
	33
	34	/* check that the user-given chmap is supported */
828cb4ed SP	35	int (chmap_validate)(struct hdac_chmap hchmap, int ca,
828cb4ed SP	36	int channels, unsigned char *chmap);
9b3dc8aa SP	37
	38	void (get_chmap)(struct hdac_device hdac, int pcm_idx,
	39	unsigned char *chmap);
	40	void (set_chmap)(struct hdac_device hdac, int pcm_idx,
	41	unsigned char *chmap, int prepared);
	42	bool (is_pcm_attached)(struct hdac_device hdac, int pcm_idx);
739ffee9 SP	43
	44	/* get and set channel assigned to each HDMI ASP (audio sample packet) slot */
	45	int (pin_get_slot_channel)(struct hdac_device codec,
	46	hda_nid_t pin_nid, int asp_slot);
	47	int (pin_set_slot_channel)(struct hdac_device codec,
	48	hda_nid_t pin_nid, int asp_slot, int channel);
	49	void (set_channel_count)(struct hdac_device codec,
	50	hda_nid_t cvt_nid, int chs);
67b90cb8 SP	51	};
	52
	53	struct hdac_chmap {
	54	unsigned int channels_max; /* max over all cvts */
	55	struct hdac_chmap_ops ops;
	56	struct hdac_device *hdac;
	57	};
	58
739ffee9 SP	59	void snd_hdac_register_chmap_ops(struct hdac_device *hdac,
739ffee9 SP	60	struct hdac_chmap *chmap);
67b90cb8	61	#endif /* __SOUND_HDA_CHMAP_H */