[linux-2.6-block.git] / include / sound / hda_regmap.h

/*
 * HD-audio regmap helpers
 */

#ifndef __SOUND_HDA_REGMAP_H
#define __SOUND_HDA_REGMAP_H

#include <linux/regmap.h>
#include <sound/core.h>
#include <sound/hdaudio.h>

int snd_hdac_regmap_init(struct hdac_device *codec);
void snd_hdac_regmap_exit(struct hdac_device *codec);
int snd_hdac_regmap_add_vendor_verb(struct hdac_device *codec,
				    unsigned int verb);
int snd_hdac_regmap_read_raw(struct hdac_device *codec, unsigned int reg,
			     unsigned int *val);
int snd_hdac_regmap_write_raw(struct hdac_device *codec, unsigned int reg,
			      unsigned int val);
int snd_hdac_regmap_update_raw(struct hdac_device *codec, unsigned int reg,
			       unsigned int mask, unsigned int val);

/**
 * snd_hdac_regmap_encode_verb - encode the verb to a pseudo register
 * @nid: widget NID
 * @verb: codec verb
 *
 * Returns an encoded pseudo register.
 */
#define snd_hdac_regmap_encode_verb(nid, verb)		\
	(((verb) << 8) | 0x80000 | ((unsigned int)(nid) << 20))

/**
 * snd_hdac_regmap_encode_amp - encode the AMP verb to a pseudo register
 * @nid: widget NID
 * @ch: channel (left = 0, right = 1)
 * @dir: direction (#HDA_INPUT, #HDA_OUTPUT)
 * @idx: input index value
 *
 * Returns an encoded pseudo register.
 */
#define snd_hdac_regmap_encode_amp(nid, ch, dir, idx)			\
	(snd_hdac_regmap_encode_verb(nid, AC_VERB_GET_AMP_GAIN_MUTE) |	\
	 ((ch) ? AC_AMP_GET_RIGHT : AC_AMP_GET_LEFT) |			\
	 ((dir) == HDA_OUTPUT ? AC_AMP_GET_OUTPUT : AC_AMP_GET_INPUT) | \
	 (idx))

/**
 * snd_hdac_regmap_encode_amp_stereo - encode a pseudo register for stereo AMPs
 * @nid: widget NID
 * @dir: direction (#HDA_INPUT, #HDA_OUTPUT)
 * @idx: input index value
 *
 * Returns an encoded pseudo register.
 */
#define snd_hdac_regmap_encode_amp_stereo(nid, dir, idx)		\
	(snd_hdac_regmap_encode_verb(nid, AC_VERB_GET_AMP_GAIN_MUTE) |	\
	 AC_AMP_SET_LEFT | AC_AMP_SET_RIGHT | /* both bits set! */	\
	 ((dir) == HDA_OUTPUT ? AC_AMP_GET_OUTPUT : AC_AMP_GET_INPUT) | \
	 (idx))

/**
 * snd_hdac_regmap_write - Write a verb with caching
 * @nid: codec NID
 * @reg: verb to write
 * @val: value to write
 *
 * For writing an amp value, use snd_hda_regmap_amp_update().
 */
static inline int
snd_hdac_regmap_write(struct hdac_device *codec, hda_nid_t nid,
		      unsigned int verb, unsigned int val)
{
	unsigned int cmd = snd_hdac_regmap_encode_verb(nid, verb);

	return snd_hdac_regmap_write_raw(codec, cmd, val);
}

/**
 * snd_hda_regmap_update - Update a verb value with caching
 * @nid: codec NID
 * @verb: verb to update
 * @mask: bit mask to update
 * @val: value to update
 *
 * For updating an amp value, use snd_hda_regmap_amp_update().
 */
static inline int
snd_hdac_regmap_update(struct hdac_device *codec, hda_nid_t nid,
		       unsigned int verb, unsigned int mask,
		       unsigned int val)
{
	unsigned int cmd = snd_hdac_regmap_encode_verb(nid, verb);

	return snd_hdac_regmap_update_raw(codec, cmd, mask, val);
}

/**
 * snd_hda_regmap_read - Read a verb with caching
 * @nid: codec NID
 * @verb: verb to read
 * @val: pointer to store the value
 *
 * For reading an amp value, use snd_hda_regmap_get_amp().
 */
static inline int
snd_hdac_regmap_read(struct hdac_device *codec, hda_nid_t nid,
		     unsigned int verb, unsigned int *val)
{
	unsigned int cmd = snd_hdac_regmap_encode_verb(nid, verb);

	return snd_hdac_regmap_read_raw(codec, cmd, val);
}

/**
 * snd_hdac_regmap_get_amp - Read AMP value
 * @codec: HD-audio codec
 * @nid: NID to read the AMP value
 * @ch: channel (left=0 or right=1)
 * @direction: #HDA_INPUT or #HDA_OUTPUT
 * @index: the index value (only for input direction)
 * @val: the pointer to store the value
 *
 * Read AMP value.  The volume is between 0 to 0x7f, 0x80 = mute bit.
 * Returns the value or a negative error.
 */
static inline int
snd_hdac_regmap_get_amp(struct hdac_device *codec, hda_nid_t nid,
			int ch, int dir, int idx)
{
	unsigned int cmd = snd_hdac_regmap_encode_amp(nid, ch, dir, idx);
	int err, val;

	err = snd_hdac_regmap_read_raw(codec, cmd, &val);
	return err < 0 ? err : val;
}

/**
 * snd_hdac_regmap_update_amp - update the AMP value
 * @codec: HD-audio codec
 * @nid: NID to read the AMP value
 * @ch: channel (left=0 or right=1)
 * @direction: #HDA_INPUT or #HDA_OUTPUT
 * @idx: the index value (only for input direction)
 * @mask: bit mask to set
 * @val: the bits value to set
 *
 * Update the AMP value with a bit mask.
 * Returns 0 if the value is unchanged, 1 if changed, or a negative error.
 */
static inline int
snd_hdac_regmap_update_amp(struct hdac_device *codec, hda_nid_t nid,
			   int ch, int dir, int idx, int mask, int val)
{
	unsigned int cmd = snd_hdac_regmap_encode_amp(nid, ch, dir, idx);

	return snd_hdac_regmap_update_raw(codec, cmd, mask, val);
}

/**
 * snd_hdac_regmap_get_amp_stereo - Read stereo AMP values
 * @codec: HD-audio codec
 * @nid: NID to read the AMP value
 * @ch: channel (left=0 or right=1)
 * @direction: #HDA_INPUT or #HDA_OUTPUT
 * @index: the index value (only for input direction)
 * @val: the pointer to store the value
 *
 * Read stereo AMP values.  The lower byte is left, the upper byte is right.
 * Returns the value or a negative error.
 */
static inline int
snd_hdac_regmap_get_amp_stereo(struct hdac_device *codec, hda_nid_t nid,
			       int dir, int idx)
{
	unsigned int cmd = snd_hdac_regmap_encode_amp_stereo(nid, dir, idx);
	int err, val;

	err = snd_hdac_regmap_read_raw(codec, cmd, &val);
	return err < 0 ? err : val;
}

/**
 * snd_hdac_regmap_update_amp_stereo - update the stereo AMP value
 * @codec: HD-audio codec
 * @nid: NID to read the AMP value
 * @direction: #HDA_INPUT or #HDA_OUTPUT
 * @idx: the index value (only for input direction)
 * @mask: bit mask to set
 * @val: the bits value to set
 *
 * Update the stereo AMP value with a bit mask.
 * The lower byte is left, the upper byte is right.
 * Returns 0 if the value is unchanged, 1 if changed, or a negative error.
 */
static inline int
snd_hdac_regmap_update_amp_stereo(struct hdac_device *codec, hda_nid_t nid,
				  int dir, int idx, int mask, int val)
{
	unsigned int cmd = snd_hdac_regmap_encode_amp_stereo(nid, dir, idx);

	return snd_hdac_regmap_update_raw(codec, cmd, mask, val);
}

#endif /* __SOUND_HDA_REGMAP_H */
Commit	Line	Data
4d75faa0 TI	1	/*
	2	* HD-audio regmap helpers
	3	*/
	4
	5	#ifndef __SOUND_HDA_REGMAP_H
	6	#define __SOUND_HDA_REGMAP_H
	7
	8	#include <linux/regmap.h>
	9	#include <sound/core.h>
	10	#include <sound/hdaudio.h>
	11
	12	int snd_hdac_regmap_init(struct hdac_device *codec);
	13	void snd_hdac_regmap_exit(struct hdac_device *codec);
5e56bcea TI	14	int snd_hdac_regmap_add_vendor_verb(struct hdac_device *codec,
5e56bcea TI	15	unsigned int verb);
4d75faa0 TI	16	int snd_hdac_regmap_read_raw(struct hdac_device *codec, unsigned int reg,
	17	unsigned int *val);
	18	int snd_hdac_regmap_write_raw(struct hdac_device *codec, unsigned int reg,
	19	unsigned int val);
	20	int snd_hdac_regmap_update_raw(struct hdac_device *codec, unsigned int reg,
	21	unsigned int mask, unsigned int val);
	22
	23	/**
	24	* snd_hdac_regmap_encode_verb - encode the verb to a pseudo register
	25	* @nid: widget NID
	26	* @verb: codec verb
	27	*
	28	* Returns an encoded pseudo register.
	29	*/
	30	#define snd_hdac_regmap_encode_verb(nid, verb) \
	31	(((verb) << 8) \| 0x80000 \| ((unsigned int)(nid) << 20))
	32
	33	/**
	34	* snd_hdac_regmap_encode_amp - encode the AMP verb to a pseudo register
	35	* @nid: widget NID
	36	* @ch: channel (left = 0, right = 1)
	37	* @dir: direction (#HDA_INPUT, #HDA_OUTPUT)
	38	* @idx: input index value
	39	*
	40	* Returns an encoded pseudo register.
	41	*/
	42	#define snd_hdac_regmap_encode_amp(nid, ch, dir, idx) \
	43	(snd_hdac_regmap_encode_verb(nid, AC_VERB_GET_AMP_GAIN_MUTE) \| \
	44	((ch) ? AC_AMP_GET_RIGHT : AC_AMP_GET_LEFT) \| \
	45	((dir) == HDA_OUTPUT ? AC_AMP_GET_OUTPUT : AC_AMP_GET_INPUT) \| \
	46	(idx))
	47
d313e0a8 TI	48	/**
	49	* snd_hdac_regmap_encode_amp_stereo - encode a pseudo register for stereo AMPs
	50	* @nid: widget NID
	51	* @dir: direction (#HDA_INPUT, #HDA_OUTPUT)
	52	* @idx: input index value
	53	*
	54	* Returns an encoded pseudo register.
	55	*/
	56	#define snd_hdac_regmap_encode_amp_stereo(nid, dir, idx) \
	57	(snd_hdac_regmap_encode_verb(nid, AC_VERB_GET_AMP_GAIN_MUTE) \| \
	58	AC_AMP_SET_LEFT \| AC_AMP_SET_RIGHT \| /* both bits set! */ \
	59	((dir) == HDA_OUTPUT ? AC_AMP_GET_OUTPUT : AC_AMP_GET_INPUT) \| \
	60	(idx))
	61
4d75faa0 TI	62	/**
	63	* snd_hdac_regmap_write - Write a verb with caching
	64	* @nid: codec NID
	65	* @reg: verb to write
	66	* @val: value to write
	67	*
	68	* For writing an amp value, use snd_hda_regmap_amp_update().
	69	*/
	70	static inline int
	71	snd_hdac_regmap_write(struct hdac_device *codec, hda_nid_t nid,
	72	unsigned int verb, unsigned int val)
	73	{
	74	unsigned int cmd = snd_hdac_regmap_encode_verb(nid, verb);
	75
	76	return snd_hdac_regmap_write_raw(codec, cmd, val);
	77	}
	78
	79	/**
	80	* snd_hda_regmap_update - Update a verb value with caching
	81	* @nid: codec NID
	82	* @verb: verb to update
	83	* @mask: bit mask to update
	84	* @val: value to update
	85	*
	86	* For updating an amp value, use snd_hda_regmap_amp_update().
	87	*/
	88	static inline int
	89	snd_hdac_regmap_update(struct hdac_device *codec, hda_nid_t nid,
	90	unsigned int verb, unsigned int mask,
	91	unsigned int val)
	92	{
	93	unsigned int cmd = snd_hdac_regmap_encode_verb(nid, verb);
	94
	95	return snd_hdac_regmap_update_raw(codec, cmd, mask, val);
	96	}
	97
	98	/**
	99	* snd_hda_regmap_read - Read a verb with caching
	100	* @nid: codec NID
	101	* @verb: verb to read
	102	* @val: pointer to store the value
	103	*
	104	* For reading an amp value, use snd_hda_regmap_get_amp().
	105	*/
	106	static inline int
	107	snd_hdac_regmap_read(struct hdac_device *codec, hda_nid_t nid,
	108	unsigned int verb, unsigned int *val)
	109	{
	110	unsigned int cmd = snd_hdac_regmap_encode_verb(nid, verb);
	111
	112	return snd_hdac_regmap_read_raw(codec, cmd, val);
	113	}
	114
	115	/**
	116	* snd_hdac_regmap_get_amp - Read AMP value
	117	* @codec: HD-audio codec
	118	* @nid: NID to read the AMP value
	119	* @ch: channel (left=0 or right=1)
	120	* @direction: #HDA_INPUT or #HDA_OUTPUT
	121	* @index: the index value (only for input direction)
	122	* @val: the pointer to store the value
	123	*
	124	* Read AMP value. The volume is between 0 to 0x7f, 0x80 = mute bit.
	125	* Returns the value or a negative error.
126	*/
127	static inline int
128	snd_hdac_regmap_get_amp(struct hdac_device *codec, hda_nid_t nid,
129	int ch, int dir, int idx)
130	{
131	unsigned int cmd = snd_hdac_regmap_encode_amp(nid, ch, dir, idx);
132	int err, val;
133
134	err = snd_hdac_regmap_read_raw(codec, cmd, &val);
135	return err < 0 ? err : val;
136	}
137
138	/**
139	* snd_hdac_regmap_update_amp - update the AMP value
140	* @codec: HD-audio codec
141	* @nid: NID to read the AMP value
142	* @ch: channel (left=0 or right=1)
143	* @direction: #HDA_INPUT or #HDA_OUTPUT
144	* @idx: the index value (only for input direction)
145	* @mask: bit mask to set
146	* @val: the bits value to set
147	*
148	* Update the AMP value with a bit mask.
149	* Returns 0 if the value is unchanged, 1 if changed, or a negative error.
150	*/
151	static inline int
152	snd_hdac_regmap_update_amp(struct hdac_device *codec, hda_nid_t nid,
153	int ch, int dir, int idx, int mask, int val)
154	{
155	unsigned int cmd = snd_hdac_regmap_encode_amp(nid, ch, dir, idx);
156
157	return snd_hdac_regmap_update_raw(codec, cmd, mask, val);
158	}
159
d313e0a8 TI	160	/**
	161	* snd_hdac_regmap_get_amp_stereo - Read stereo AMP values
	162	* @codec: HD-audio codec
	163	* @nid: NID to read the AMP value
	164	* @ch: channel (left=0 or right=1)
	165	* @direction: #HDA_INPUT or #HDA_OUTPUT
	166	* @index: the index value (only for input direction)
	167	* @val: the pointer to store the value
	168	*
	169	* Read stereo AMP values. The lower byte is left, the upper byte is right.
	170	* Returns the value or a negative error.
	171	*/
	172	static inline int
	173	snd_hdac_regmap_get_amp_stereo(struct hdac_device *codec, hda_nid_t nid,
	174	int dir, int idx)
	175	{
	176	unsigned int cmd = snd_hdac_regmap_encode_amp_stereo(nid, dir, idx);
	177	int err, val;
	178
	179	err = snd_hdac_regmap_read_raw(codec, cmd, &val);
	180	return err < 0 ? err : val;
	181	}
	182
	183	/**
	184	* snd_hdac_regmap_update_amp_stereo - update the stereo AMP value
	185	* @codec: HD-audio codec
	186	* @nid: NID to read the AMP value
	187	* @direction: #HDA_INPUT or #HDA_OUTPUT
	188	* @idx: the index value (only for input direction)
	189	* @mask: bit mask to set
	190	* @val: the bits value to set
	191	*
	192	* Update the stereo AMP value with a bit mask.
	193	* The lower byte is left, the upper byte is right.
	194	* Returns 0 if the value is unchanged, 1 if changed, or a negative error.
	195	*/
	196	static inline int
	197	snd_hdac_regmap_update_amp_stereo(struct hdac_device *codec, hda_nid_t nid,
	198	int dir, int idx, int mask, int val)
	199	{
	200	unsigned int cmd = snd_hdac_regmap_encode_amp_stereo(nid, dir, idx);
	201
	202	return snd_hdac_regmap_update_raw(codec, cmd, mask, val);
	203	}
	204
4d75faa0	205	#endif /* __SOUND_HDA_REGMAP_H */