1 // SPDX-License-Identifier: GPL-2.0
2 // Copyright (c) 2018, Linaro Limited.
3 // Copyright (c) 2018, The Linux Foundation. All rights reserved.
4
5 #include <dt-bindings/sound/qcom,q6afe.h>
6 #include <linux/module.h>
7 #include <sound/jack.h>
8 #include <linux/input-event-codes.h>
9 #include "common.h"
10
11 #define NAME_SIZE 32
12
13 static const struct snd_soc_dapm_widget qcom_jack_snd_widgets[] = {
14 SND_SOC_DAPM_HP("Headphone Jack", NULL),
15 SND_SOC_DAPM_MIC("Mic Jack", NULL),
16 SND_SOC_DAPM_SPK("DP0 Jack", NULL),
17 SND_SOC_DAPM_SPK("DP1 Jack", NULL),
18 SND_SOC_DAPM_SPK("DP2 Jack", NULL),
19 SND_SOC_DAPM_SPK("DP3 Jack", NULL),
20 SND_SOC_DAPM_SPK("DP4 Jack", NULL),
21 SND_SOC_DAPM_SPK("DP5 Jack", NULL),
22 SND_SOC_DAPM_SPK("DP6 Jack", NULL),
23 SND_SOC_DAPM_SPK("DP7 Jack", NULL),
24 };
25
qcom_snd_parse_of(struct snd_soc_card * card)26 int qcom_snd_parse_of(struct snd_soc_card *card)
27 {
28 struct device_node *np;
29 struct device_node *codec = NULL;
30 struct device_node *platform = NULL;
31 struct device_node *cpu = NULL;
32 struct device *dev = card->dev;
33 struct snd_soc_dai_link *link;
34 struct of_phandle_args args;
35 struct snd_soc_dai_link_component *dlc;
36 int ret, num_links;
37
38 ret = snd_soc_of_parse_card_name(card, "model");
39 if (ret == 0 && !card->name)
40 /* Deprecated, only for compatibility with old device trees */
41 ret = snd_soc_of_parse_card_name(card, "qcom,model");
42 if (ret) {
43 dev_err(dev, "Error parsing card name: %d\n", ret);
44 return ret;
45 }
46
47 if (of_property_read_bool(dev->of_node, "widgets")) {
48 ret = snd_soc_of_parse_audio_simple_widgets(card, "widgets");
49 if (ret)
50 return ret;
51 }
52
53 /* DAPM routes */
54 if (of_property_read_bool(dev->of_node, "audio-routing")) {
55 ret = snd_soc_of_parse_audio_routing(card, "audio-routing");
56 if (ret)
57 return ret;
58 }
59 /* Deprecated, only for compatibility with old device trees */
60 if (of_property_read_bool(dev->of_node, "qcom,audio-routing")) {
61 ret = snd_soc_of_parse_audio_routing(card, "qcom,audio-routing");
62 if (ret)
63 return ret;
64 }
65
66 ret = snd_soc_of_parse_pin_switches(card, "pin-switches");
67 if (ret)
68 return ret;
69
70 ret = snd_soc_of_parse_aux_devs(card, "aux-devs");
71 if (ret)
72 return ret;
73
74 /* Populate links */
75 num_links = of_get_available_child_count(dev->of_node);
76
77 /* Allocate the DAI link array */
78 card->dai_link = devm_kcalloc(dev, num_links, sizeof(*link), GFP_KERNEL);
79 if (!card->dai_link)
80 return -ENOMEM;
81
82 card->num_links = num_links;
83 link = card->dai_link;
84
85 for_each_available_child_of_node(dev->of_node, np) {
86 dlc = devm_kcalloc(dev, 2, sizeof(*dlc), GFP_KERNEL);
87 if (!dlc) {
88 ret = -ENOMEM;
89 goto err_put_np;
90 }
91
92 link->cpus = &dlc[0];
93 link->platforms = &dlc[1];
94
95 link->num_cpus = 1;
96 link->num_platforms = 1;
97
98 ret = of_property_read_string(np, "link-name", &link->name);
99 if (ret) {
100 dev_err(card->dev, "error getting codec dai_link name\n");
101 goto err_put_np;
102 }
103
104 cpu = of_get_child_by_name(np, "cpu");
105 platform = of_get_child_by_name(np, "platform");
106 codec = of_get_child_by_name(np, "codec");
107
108 if (!cpu) {
109 dev_err(dev, "%s: Can't find cpu DT node\n", link->name);
110 ret = -EINVAL;
111 goto err;
112 }
113
114 ret = snd_soc_of_get_dlc(cpu, &args, link->cpus, 0);
115 if (ret) {
116 dev_err_probe(card->dev, ret,
117 "%s: error getting cpu dai name\n", link->name);
118 goto err;
119 }
120
121 link->id = args.args[0];
122
123 if (platform) {
124 link->platforms->of_node = of_parse_phandle(platform,
125 "sound-dai",
126 0);
127 if (!link->platforms->of_node) {
128 dev_err(card->dev, "%s: platform dai not found\n", link->name);
129 ret = -EINVAL;
130 goto err;
131 }
132 } else {
133 link->platforms->of_node = link->cpus->of_node;
134 }
135
136 if (codec) {
137 ret = snd_soc_of_get_dai_link_codecs(dev, codec, link);
138 if (ret < 0) {
139 dev_err_probe(card->dev, ret,
140 "%s: codec dai not found\n", link->name);
141 goto err;
142 }
143
144 if (platform) {
145 /* DPCM backend */
146 link->no_pcm = 1;
147 link->ignore_pmdown_time = 1;
148 }
149 } else {
150 /* DPCM frontend */
151 link->codecs = &snd_soc_dummy_dlc;
152 link->num_codecs = 1;
153 link->dynamic = 1;
154 }
155
156 if (platform || !codec) {
157 /* DPCM */
158 link->ignore_suspend = 1;
159 link->nonatomic = 1;
160 }
161
162 link->stream_name = link->name;
163 link++;
164
165 of_node_put(cpu);
166 of_node_put(codec);
167 of_node_put(platform);
168 }
169
170 if (!card->dapm_widgets) {
171 card->dapm_widgets = qcom_jack_snd_widgets;
172 card->num_dapm_widgets = ARRAY_SIZE(qcom_jack_snd_widgets);
173 }
174
175 return 0;
176 err:
177 of_node_put(cpu);
178 of_node_put(codec);
179 of_node_put(platform);
180 err_put_np:
181 of_node_put(np);
182 return ret;
183 }
184 EXPORT_SYMBOL_GPL(qcom_snd_parse_of);
185
186 static struct snd_soc_jack_pin qcom_headset_jack_pins[] = {
187 /* Headset */
188 {
189 .pin = "Mic Jack",
190 .mask = SND_JACK_MICROPHONE,
191 },
192 {
193 .pin = "Headphone Jack",
194 .mask = SND_JACK_HEADPHONE,
195 },
196 };
197
qcom_snd_wcd_jack_setup(struct snd_soc_pcm_runtime * rtd,struct snd_soc_jack * jack,bool * jack_setup)198 int qcom_snd_wcd_jack_setup(struct snd_soc_pcm_runtime *rtd,
199 struct snd_soc_jack *jack, bool *jack_setup)
200 {
201 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
202 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);
203 struct snd_soc_card *card = rtd->card;
204 int rval, i;
205
206 if (!*jack_setup) {
207 rval = snd_soc_card_jack_new_pins(card, "Headset Jack",
208 SND_JACK_HEADSET | SND_JACK_LINEOUT |
209 SND_JACK_MECHANICAL |
210 SND_JACK_BTN_0 | SND_JACK_BTN_1 |
211 SND_JACK_BTN_2 | SND_JACK_BTN_3 |
212 SND_JACK_BTN_4 | SND_JACK_BTN_5,
213 jack, qcom_headset_jack_pins,
214 ARRAY_SIZE(qcom_headset_jack_pins));
215
216 if (rval < 0) {
217 dev_err(card->dev, "Unable to add Headphone Jack\n");
218 return rval;
219 }
220
221 snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_MEDIA);
222 snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
223 snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
224 snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
225 *jack_setup = true;
226 }
227
228 switch (cpu_dai->id) {
229 case TX_CODEC_DMA_TX_0:
230 case TX_CODEC_DMA_TX_1:
231 case TX_CODEC_DMA_TX_2:
232 case TX_CODEC_DMA_TX_3:
233 for_each_rtd_codec_dais(rtd, i, codec_dai) {
234 rval = snd_soc_component_set_jack(codec_dai->component,
235 jack, NULL);
236 if (rval != 0 && rval != -ENOTSUPP) {
237 dev_warn(card->dev, "Failed to set jack: %d\n", rval);
238 return rval;
239 }
240 }
241
242 break;
243 default:
244 break;
245 }
246
247
248 return 0;
249 }
250 EXPORT_SYMBOL_GPL(qcom_snd_wcd_jack_setup);
251
qcom_snd_dp_jack_setup(struct snd_soc_pcm_runtime * rtd,struct snd_soc_jack * dp_jack,int dp_pcm_id)252 int qcom_snd_dp_jack_setup(struct snd_soc_pcm_runtime *rtd,
253 struct snd_soc_jack *dp_jack, int dp_pcm_id)
254 {
255 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);
256 struct snd_soc_card *card = rtd->card;
257 char jack_name[NAME_SIZE];
258 int rval, i;
259
260 snprintf(jack_name, sizeof(jack_name), "DP%d Jack", dp_pcm_id);
261 rval = snd_soc_card_jack_new(card, jack_name, SND_JACK_AVOUT, dp_jack);
262 if (rval)
263 return rval;
264
265 for_each_rtd_codec_dais(rtd, i, codec_dai) {
266 rval = snd_soc_component_set_jack(codec_dai->component, dp_jack, NULL);
267 if (rval != 0 && rval != -ENOTSUPP) {
268 dev_warn(card->dev, "Failed to set jack: %d\n", rval);
269 return rval;
270 }
271 }
272
273 return 0;
274 }
275 EXPORT_SYMBOL_GPL(qcom_snd_dp_jack_setup);
276
277 MODULE_DESCRIPTION("ASoC Qualcomm helper functions");
278 MODULE_LICENSE("GPL");
279