1 // SPDX-License-Identifier: GPL-2.0
2 //
3 // soc-card.c
4 //
5 // Copyright (C) 2019 Renesas Electronics Corp.
6 // Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
7 //
8 #include <sound/soc.h>
9 #include <sound/jack.h>
10
11 #define soc_card_ret(dai, ret) _soc_card_ret(dai, __func__, ret)
12 static inline int _soc_card_ret(struct snd_soc_card *card,
13 const char *func, int ret)
14 {
15 switch (ret) {
16 case -EPROBE_DEFER:
17 case -ENOTSUPP:
18 case 0:
19 break;
20 default:
21 dev_err(card->dev,
22 "ASoC: error at %s on %s: %d\n",
23 func, card->name, ret);
24 }
25
26 return ret;
27 }
28
29 struct snd_kcontrol *snd_soc_card_get_kcontrol(struct snd_soc_card *soc_card,
30 const char *name)
31 {
32 struct snd_card *card = soc_card->snd_card;
33 struct snd_kcontrol *kctl;
34
35 if (unlikely(!name))
36 return NULL;
37
38 list_for_each_entry(kctl, &card->controls, list)
39 if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name)))
40 return kctl;
41 return NULL;
42 }
43 EXPORT_SYMBOL_GPL(snd_soc_card_get_kcontrol);
44
45 /**
46 * snd_soc_card_jack_new - Create a new jack
47 * @card: ASoC card
48 * @id: an identifying string for this jack
49 * @type: a bitmask of enum snd_jack_type values that can be detected by
50 * this jack
51 * @jack: structure to use for the jack
52 * @pins: Array of jack pins to be added to the jack or NULL
53 * @num_pins: Number of elements in the @pins array
54 *
55 * Creates a new jack object.
56 *
57 * Returns zero if successful, or a negative error code on failure.
58 * On success jack will be initialised.
59 */
60 int snd_soc_card_jack_new(struct snd_soc_card *card, const char *id, int type,
61 struct snd_soc_jack *jack,
62 struct snd_soc_jack_pin *pins, unsigned int num_pins)
63 {
64 int ret;
65
66 mutex_init(&jack->mutex);
67 jack->card = card;
68 INIT_LIST_HEAD(&jack->pins);
69 INIT_LIST_HEAD(&jack->jack_zones);
70 BLOCKING_INIT_NOTIFIER_HEAD(&jack->notifier);
71
72 ret = snd_jack_new(card->snd_card, id, type, &jack->jack, false, false);
73 if (ret)
74 goto end;
75
76 if (num_pins)
77 ret = snd_soc_jack_add_pins(jack, num_pins, pins);
78 end:
79 return soc_card_ret(card, ret);
80 }
81 EXPORT_SYMBOL_GPL(snd_soc_card_jack_new);
82
83 int snd_soc_card_suspend_pre(struct snd_soc_card *card)
84 {
85 int ret = 0;
86
87 if (card->suspend_pre)
88 ret = card->suspend_pre(card);
89
90 return soc_card_ret(card, ret);
91 }
92
93 int snd_soc_card_suspend_post(struct snd_soc_card *card)
94 {
95 int ret = 0;
96
97 if (card->suspend_post)
98 ret = card->suspend_post(card);
99
100 return soc_card_ret(card, ret);
101 }
102
103 int snd_soc_card_resume_pre(struct snd_soc_card *card)
104 {
105 int ret = 0;
106
107 if (card->resume_pre)
108 ret = card->resume_pre(card);
109
110 return soc_card_ret(card, ret);
111 }
112
113 int snd_soc_card_resume_post(struct snd_soc_card *card)
114 {
115 int ret = 0;
116
117 if (card->resume_post)
118 ret = card->resume_post(card);
119
120 return soc_card_ret(card, ret);
121 }
122
123 int snd_soc_card_probe(struct snd_soc_card *card)
124 {
125 if (card->probe) {
126 int ret = card->probe(card);
127
128 if (ret < 0)
129 return soc_card_ret(card, ret);
130
131 /*
132 * It has "card->probe" and "card->late_probe" callbacks.
133 * So, set "probed" flag here, because it needs to care
134 * about "late_probe".
135 *
136 * see
137 * snd_soc_bind_card()
138 * snd_soc_card_late_probe()
139 */
140 card->probed = 1;
141 }
142
143 return 0;
144 }
145
146 int snd_soc_card_late_probe(struct snd_soc_card *card)
147 {
148 if (card->late_probe) {
149 int ret = card->late_probe(card);
150
151 if (ret < 0)
152 return soc_card_ret(card, ret);
153 }
154
155 /*
156 * It has "card->probe" and "card->late_probe" callbacks,
157 * and "late_probe" callback is called after "probe".
158 * This means, we can set "card->probed" flag afer "late_probe"
159 * for all cases.
160 *
161 * see
162 * snd_soc_bind_card()
163 * snd_soc_card_probe()
164 */
165 card->probed = 1;
166
167 return 0;
168 }
169
170 int snd_soc_card_remove(struct snd_soc_card *card)
171 {
172 int ret = 0;
173
174 if (card->probed &&
175 card->remove)
176 ret = card->remove(card);
177
178 card->probed = 0;
179
180 return soc_card_ret(card, ret);
181 }
182
183 int snd_soc_card_set_bias_level(struct snd_soc_card *card,
184 struct snd_soc_dapm_context *dapm,
185 enum snd_soc_bias_level level)
186 {
187 int ret = 0;
188
189 if (card && card->set_bias_level)
190 ret = card->set_bias_level(card, dapm, level);
191
192 return soc_card_ret(card, ret);
193 }
194
195 int snd_soc_card_set_bias_level_post(struct snd_soc_card *card,
196 struct snd_soc_dapm_context *dapm,
197 enum snd_soc_bias_level level)
198 {
199 int ret = 0;
200
201 if (card && card->set_bias_level_post)
202 ret = card->set_bias_level_post(card, dapm, level);
203
204 return soc_card_ret(card, ret);
205 }
206
207 int snd_soc_card_add_dai_link(struct snd_soc_card *card,
208 struct snd_soc_dai_link *dai_link)
209 {
210 int ret = 0;
211
212 if (card->add_dai_link)
213 ret = card->add_dai_link(card, dai_link);
214
215 return soc_card_ret(card, ret);
216 }
217 EXPORT_SYMBOL_GPL(snd_soc_card_add_dai_link);
218
219 void snd_soc_card_remove_dai_link(struct snd_soc_card *card,
220 struct snd_soc_dai_link *dai_link)
221 {
222 if (card->remove_dai_link)
223 card->remove_dai_link(card, dai_link);
224 }
225 EXPORT_SYMBOL_GPL(snd_soc_card_remove_dai_link);
226
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