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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 | ||
a686ec4c TI |
12 | #define AC_AMP_FAKE_MUTE 0x10 /* fake mute bit set to amp verbs */ |
13 | ||
4d75faa0 TI |
14 | int snd_hdac_regmap_init(struct hdac_device *codec); |
15 | void snd_hdac_regmap_exit(struct hdac_device *codec); | |
5e56bcea TI |
16 | int snd_hdac_regmap_add_vendor_verb(struct hdac_device *codec, |
17 | unsigned int verb); | |
4d75faa0 TI |
18 | int snd_hdac_regmap_read_raw(struct hdac_device *codec, unsigned int reg, |
19 | unsigned int *val); | |
20 | int snd_hdac_regmap_write_raw(struct hdac_device *codec, unsigned int reg, | |
21 | unsigned int val); | |
22 | int snd_hdac_regmap_update_raw(struct hdac_device *codec, unsigned int reg, | |
23 | unsigned int mask, unsigned int val); | |
24 | ||
25 | /** | |
26 | * snd_hdac_regmap_encode_verb - encode the verb to a pseudo register | |
27 | * @nid: widget NID | |
28 | * @verb: codec verb | |
29 | * | |
30 | * Returns an encoded pseudo register. | |
31 | */ | |
32 | #define snd_hdac_regmap_encode_verb(nid, verb) \ | |
33 | (((verb) << 8) | 0x80000 | ((unsigned int)(nid) << 20)) | |
34 | ||
35 | /** | |
36 | * snd_hdac_regmap_encode_amp - encode the AMP verb to a pseudo register | |
37 | * @nid: widget NID | |
38 | * @ch: channel (left = 0, right = 1) | |
39 | * @dir: direction (#HDA_INPUT, #HDA_OUTPUT) | |
40 | * @idx: input index value | |
41 | * | |
42 | * Returns an encoded pseudo register. | |
43 | */ | |
44 | #define snd_hdac_regmap_encode_amp(nid, ch, dir, idx) \ | |
45 | (snd_hdac_regmap_encode_verb(nid, AC_VERB_GET_AMP_GAIN_MUTE) | \ | |
46 | ((ch) ? AC_AMP_GET_RIGHT : AC_AMP_GET_LEFT) | \ | |
47 | ((dir) == HDA_OUTPUT ? AC_AMP_GET_OUTPUT : AC_AMP_GET_INPUT) | \ | |
48 | (idx)) | |
49 | ||
d313e0a8 TI |
50 | /** |
51 | * snd_hdac_regmap_encode_amp_stereo - encode a pseudo register for stereo AMPs | |
52 | * @nid: widget NID | |
53 | * @dir: direction (#HDA_INPUT, #HDA_OUTPUT) | |
54 | * @idx: input index value | |
55 | * | |
56 | * Returns an encoded pseudo register. | |
57 | */ | |
58 | #define snd_hdac_regmap_encode_amp_stereo(nid, dir, idx) \ | |
59 | (snd_hdac_regmap_encode_verb(nid, AC_VERB_GET_AMP_GAIN_MUTE) | \ | |
60 | AC_AMP_SET_LEFT | AC_AMP_SET_RIGHT | /* both bits set! */ \ | |
61 | ((dir) == HDA_OUTPUT ? AC_AMP_GET_OUTPUT : AC_AMP_GET_INPUT) | \ | |
62 | (idx)) | |
63 | ||
4d75faa0 TI |
64 | /** |
65 | * snd_hdac_regmap_write - Write a verb with caching | |
66 | * @nid: codec NID | |
67 | * @reg: verb to write | |
68 | * @val: value to write | |
69 | * | |
70 | * For writing an amp value, use snd_hda_regmap_amp_update(). | |
71 | */ | |
72 | static inline int | |
73 | snd_hdac_regmap_write(struct hdac_device *codec, hda_nid_t nid, | |
74 | unsigned int verb, unsigned int val) | |
75 | { | |
76 | unsigned int cmd = snd_hdac_regmap_encode_verb(nid, verb); | |
77 | ||
78 | return snd_hdac_regmap_write_raw(codec, cmd, val); | |
79 | } | |
80 | ||
81 | /** | |
82 | * snd_hda_regmap_update - Update a verb value with caching | |
83 | * @nid: codec NID | |
84 | * @verb: verb to update | |
85 | * @mask: bit mask to update | |
86 | * @val: value to update | |
87 | * | |
88 | * For updating an amp value, use snd_hda_regmap_amp_update(). | |
89 | */ | |
90 | static inline int | |
91 | snd_hdac_regmap_update(struct hdac_device *codec, hda_nid_t nid, | |
92 | unsigned int verb, unsigned int mask, | |
93 | unsigned int val) | |
94 | { | |
95 | unsigned int cmd = snd_hdac_regmap_encode_verb(nid, verb); | |
96 | ||
97 | return snd_hdac_regmap_update_raw(codec, cmd, mask, val); | |
98 | } | |
99 | ||
100 | /** | |
101 | * snd_hda_regmap_read - Read a verb with caching | |
102 | * @nid: codec NID | |
103 | * @verb: verb to read | |
104 | * @val: pointer to store the value | |
105 | * | |
106 | * For reading an amp value, use snd_hda_regmap_get_amp(). | |
107 | */ | |
108 | static inline int | |
109 | snd_hdac_regmap_read(struct hdac_device *codec, hda_nid_t nid, | |
110 | unsigned int verb, unsigned int *val) | |
111 | { | |
112 | unsigned int cmd = snd_hdac_regmap_encode_verb(nid, verb); | |
113 | ||
114 | return snd_hdac_regmap_read_raw(codec, cmd, val); | |
115 | } | |
116 | ||
117 | /** | |
118 | * snd_hdac_regmap_get_amp - Read AMP value | |
119 | * @codec: HD-audio codec | |
120 | * @nid: NID to read the AMP value | |
121 | * @ch: channel (left=0 or right=1) | |
122 | * @direction: #HDA_INPUT or #HDA_OUTPUT | |
123 | * @index: the index value (only for input direction) | |
124 | * @val: the pointer to store the value | |
125 | * | |
126 | * Read AMP value. The volume is between 0 to 0x7f, 0x80 = mute bit. | |
127 | * Returns the value or a negative error. | |
128 | */ | |
129 | static inline int | |
130 | snd_hdac_regmap_get_amp(struct hdac_device *codec, hda_nid_t nid, | |
131 | int ch, int dir, int idx) | |
132 | { | |
133 | unsigned int cmd = snd_hdac_regmap_encode_amp(nid, ch, dir, idx); | |
134 | int err, val; | |
135 | ||
136 | err = snd_hdac_regmap_read_raw(codec, cmd, &val); | |
137 | return err < 0 ? err : val; | |
138 | } | |
139 | ||
140 | /** | |
141 | * snd_hdac_regmap_update_amp - update the AMP value | |
142 | * @codec: HD-audio codec | |
143 | * @nid: NID to read the AMP value | |
144 | * @ch: channel (left=0 or right=1) | |
145 | * @direction: #HDA_INPUT or #HDA_OUTPUT | |
146 | * @idx: the index value (only for input direction) | |
147 | * @mask: bit mask to set | |
148 | * @val: the bits value to set | |
149 | * | |
150 | * Update the AMP value with a bit mask. | |
151 | * Returns 0 if the value is unchanged, 1 if changed, or a negative error. | |
152 | */ | |
153 | static inline int | |
154 | snd_hdac_regmap_update_amp(struct hdac_device *codec, hda_nid_t nid, | |
155 | int ch, int dir, int idx, int mask, int val) | |
156 | { | |
157 | unsigned int cmd = snd_hdac_regmap_encode_amp(nid, ch, dir, idx); | |
158 | ||
159 | return snd_hdac_regmap_update_raw(codec, cmd, mask, val); | |
160 | } | |
161 | ||
d313e0a8 TI |
162 | /** |
163 | * snd_hdac_regmap_get_amp_stereo - Read stereo AMP values | |
164 | * @codec: HD-audio codec | |
165 | * @nid: NID to read the AMP value | |
166 | * @ch: channel (left=0 or right=1) | |
167 | * @direction: #HDA_INPUT or #HDA_OUTPUT | |
168 | * @index: the index value (only for input direction) | |
169 | * @val: the pointer to store the value | |
170 | * | |
171 | * Read stereo AMP values. The lower byte is left, the upper byte is right. | |
172 | * Returns the value or a negative error. | |
173 | */ | |
174 | static inline int | |
175 | snd_hdac_regmap_get_amp_stereo(struct hdac_device *codec, hda_nid_t nid, | |
176 | int dir, int idx) | |
177 | { | |
178 | unsigned int cmd = snd_hdac_regmap_encode_amp_stereo(nid, dir, idx); | |
179 | int err, val; | |
180 | ||
181 | err = snd_hdac_regmap_read_raw(codec, cmd, &val); | |
182 | return err < 0 ? err : val; | |
183 | } | |
184 | ||
185 | /** | |
186 | * snd_hdac_regmap_update_amp_stereo - update the stereo AMP value | |
187 | * @codec: HD-audio codec | |
188 | * @nid: NID to read the AMP value | |
189 | * @direction: #HDA_INPUT or #HDA_OUTPUT | |
190 | * @idx: the index value (only for input direction) | |
191 | * @mask: bit mask to set | |
192 | * @val: the bits value to set | |
193 | * | |
194 | * Update the stereo AMP value with a bit mask. | |
195 | * The lower byte is left, the upper byte is right. | |
196 | * Returns 0 if the value is unchanged, 1 if changed, or a negative error. | |
197 | */ | |
198 | static inline int | |
199 | snd_hdac_regmap_update_amp_stereo(struct hdac_device *codec, hda_nid_t nid, | |
200 | int dir, int idx, int mask, int val) | |
201 | { | |
202 | unsigned int cmd = snd_hdac_regmap_encode_amp_stereo(nid, dir, idx); | |
203 | ||
204 | return snd_hdac_regmap_update_raw(codec, cmd, mask, val); | |
205 | } | |
206 | ||
d545a57c TI |
207 | /** |
208 | * snd_hdac_regmap_sync_node - sync the widget node attributes | |
209 | * @codec: HD-audio codec | |
210 | * @nid: NID to sync | |
211 | */ | |
212 | static inline void | |
213 | snd_hdac_regmap_sync_node(struct hdac_device *codec, hda_nid_t nid) | |
214 | { | |
215 | regcache_mark_dirty(codec->regmap); | |
216 | regcache_sync_region(codec->regmap, nid << 20, ((nid + 1) << 20) - 1); | |
217 | } | |
218 | ||
4d75faa0 | 219 | #endif /* __SOUND_HDA_REGMAP_H */ |