summaryrefslogtreecommitdiff
path: root/sound/soc/qcom/common.c
blob: 3d02aa3844f294a437cc86be0e1908dc07e31446 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
// SPDX-License-Identifier: GPL-2.0
// Copyright (c) 2018, Linaro Limited.
// Copyright (c) 2018, The Linux Foundation. All rights reserved.

#include <dt-bindings/sound/qcom,q6afe.h>
#include <linux/module.h>
#include <sound/jack.h>
#include <linux/input-event-codes.h>
#include "common.h"

static const struct snd_soc_dapm_widget qcom_jack_snd_widgets[] = {
	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	SND_SOC_DAPM_MIC("Mic Jack", NULL),
};

int qcom_snd_parse_of(struct snd_soc_card *card)
{
	struct device_node *np;
	struct device_node *codec = NULL;
	struct device_node *platform = NULL;
	struct device_node *cpu = NULL;
	struct device *dev = card->dev;
	struct snd_soc_dai_link *link;
	struct of_phandle_args args;
	struct snd_soc_dai_link_component *dlc;
	int ret, num_links;

	ret = snd_soc_of_parse_card_name(card, "model");
	if (ret == 0 && !card->name)
		/* Deprecated, only for compatibility with old device trees */
		ret = snd_soc_of_parse_card_name(card, "qcom,model");
	if (ret) {
		dev_err(dev, "Error parsing card name: %d\n", ret);
		return ret;
	}

	if (of_property_read_bool(dev->of_node, "widgets")) {
		ret = snd_soc_of_parse_audio_simple_widgets(card, "widgets");
		if (ret)
			return ret;
	}

	/* DAPM routes */
	if (of_property_read_bool(dev->of_node, "audio-routing")) {
		ret = snd_soc_of_parse_audio_routing(card, "audio-routing");
		if (ret)
			return ret;
	}
	/* Deprecated, only for compatibility with old device trees */
	if (of_property_read_bool(dev->of_node, "qcom,audio-routing")) {
		ret = snd_soc_of_parse_audio_routing(card, "qcom,audio-routing");
		if (ret)
			return ret;
	}

	ret = snd_soc_of_parse_pin_switches(card, "pin-switches");
	if (ret)
		return ret;

	ret = snd_soc_of_parse_aux_devs(card, "aux-devs");
	if (ret)
		return ret;

	/* Populate links */
	num_links = of_get_available_child_count(dev->of_node);

	/* Allocate the DAI link array */
	card->dai_link = devm_kcalloc(dev, num_links, sizeof(*link), GFP_KERNEL);
	if (!card->dai_link)
		return -ENOMEM;

	card->num_links = num_links;
	link = card->dai_link;

	for_each_available_child_of_node(dev->of_node, np) {
		dlc = devm_kcalloc(dev, 2, sizeof(*dlc), GFP_KERNEL);
		if (!dlc) {
			ret = -ENOMEM;
			goto err_put_np;
		}

		link->cpus	= &dlc[0];
		link->platforms	= &dlc[1];

		link->num_cpus		= 1;
		link->num_platforms	= 1;

		ret = of_property_read_string(np, "link-name", &link->name);
		if (ret) {
			dev_err(card->dev, "error getting codec dai_link name\n");
			goto err_put_np;
		}

		cpu = of_get_child_by_name(np, "cpu");
		platform = of_get_child_by_name(np, "platform");
		codec = of_get_child_by_name(np, "codec");

		if (!cpu) {
			dev_err(dev, "%s: Can't find cpu DT node\n", link->name);
			ret = -EINVAL;
			goto err;
		}

		ret = snd_soc_of_get_dlc(cpu, &args, link->cpus, 0);
		if (ret) {
			dev_err_probe(card->dev, ret,
				      "%s: error getting cpu dai name\n", link->name);
			goto err;
		}

		link->id = args.args[0];

		if (platform) {
			link->platforms->of_node = of_parse_phandle(platform,
					"sound-dai",
					0);
			if (!link->platforms->of_node) {
				dev_err(card->dev, "%s: platform dai not found\n", link->name);
				ret = -EINVAL;
				goto err;
			}
		} else {
			link->platforms->of_node = link->cpus->of_node;
		}

		if (codec) {
			ret = snd_soc_of_get_dai_link_codecs(dev, codec, link);
			if (ret < 0) {
				dev_err_probe(card->dev, ret,
					      "%s: codec dai not found\n", link->name);
				goto err;
			}

			if (platform) {
				/* DPCM backend */
				link->no_pcm = 1;
				link->ignore_pmdown_time = 1;
			}
		} else {
			/* DPCM frontend */
			link->codecs	 = &snd_soc_dummy_dlc;
			link->num_codecs = 1;
			link->dynamic = 1;
		}

		if (platform || !codec) {
			/* DPCM */
			snd_soc_dai_link_set_capabilities(link);
			link->ignore_suspend = 1;
			link->nonatomic = 1;
		}

		link->stream_name = link->name;
		link++;

		of_node_put(cpu);
		of_node_put(codec);
		of_node_put(platform);
	}

	if (!card->dapm_widgets) {
		card->dapm_widgets = qcom_jack_snd_widgets;
		card->num_dapm_widgets = ARRAY_SIZE(qcom_jack_snd_widgets);
	}

	return 0;
err:
	of_node_put(cpu);
	of_node_put(codec);
	of_node_put(platform);
err_put_np:
	of_node_put(np);
	return ret;
}
EXPORT_SYMBOL_GPL(qcom_snd_parse_of);

static struct snd_soc_jack_pin qcom_headset_jack_pins[] = {
	/* Headset */
	{
		.pin = "Mic Jack",
		.mask = SND_JACK_MICROPHONE,
	},
	{
		.pin = "Headphone Jack",
		.mask = SND_JACK_HEADPHONE,
	},
};

int qcom_snd_wcd_jack_setup(struct snd_soc_pcm_runtime *rtd,
			    struct snd_soc_jack *jack, bool *jack_setup)
{
	struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
	struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);
	struct snd_soc_card *card = rtd->card;
	int rval, i;

	if (!*jack_setup) {
		rval = snd_soc_card_jack_new_pins(card, "Headset Jack",
					     SND_JACK_HEADSET | SND_JACK_LINEOUT |
					     SND_JACK_MECHANICAL |
					     SND_JACK_BTN_0 | SND_JACK_BTN_1 |
					     SND_JACK_BTN_2 | SND_JACK_BTN_3 |
					     SND_JACK_BTN_4 | SND_JACK_BTN_5,
					     jack, qcom_headset_jack_pins,
					     ARRAY_SIZE(qcom_headset_jack_pins));

		if (rval < 0) {
			dev_err(card->dev, "Unable to add Headphone Jack\n");
			return rval;
		}

		snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_MEDIA);
		snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
		snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
		snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
		*jack_setup = true;
	}

	switch (cpu_dai->id) {
	case TX_CODEC_DMA_TX_0:
	case TX_CODEC_DMA_TX_1:
	case TX_CODEC_DMA_TX_2:
	case TX_CODEC_DMA_TX_3:
		for_each_rtd_codec_dais(rtd, i, codec_dai) {
			rval = snd_soc_component_set_jack(codec_dai->component,
							  jack, NULL);
			if (rval != 0 && rval != -ENOTSUPP) {
				dev_warn(card->dev, "Failed to set jack: %d\n", rval);
				return rval;
			}
		}

		break;
	default:
		break;
	}


	return 0;
}
EXPORT_SYMBOL_GPL(qcom_snd_wcd_jack_setup);

MODULE_DESCRIPTION("ASoC Qualcomm helper functions");
MODULE_LICENSE("GPL");