1 // SPDX-License-Identifier: GPL-2.0-only
2 // Copyright (c) 2023 Intel Corporation
3
4 /*
5 * sof_sdw_cs42l42 - Helpers to handle CS42L42 from generic machine driver
6 */
7
8 #include <linux/device.h>
9 #include <linux/errno.h>
10 #include <linux/input.h>
11 #include <linux/soundwire/sdw.h>
12 #include <linux/soundwire/sdw_type.h>
13 #include <sound/control.h>
14 #include <sound/soc.h>
15 #include <sound/soc-acpi.h>
16 #include <sound/soc-dapm.h>
17 #include <sound/jack.h>
18 #include "sof_sdw_common.h"
19
20 static const struct snd_soc_dapm_route cs42l42_map[] = {
21 /* HP jack connectors - unknown if we have jack detection */
22 {"Headphone", NULL, "cs42l42 HP"},
23
24 /* other jacks */
25 {"cs42l42 HS", NULL, "Headset Mic"},
26 };
27
28 static struct snd_soc_jack_pin cs42l42_jack_pins[] = {
29 {
30 .pin = "Headphone",
31 .mask = SND_JACK_HEADPHONE,
32 },
33 {
34 .pin = "Headset Mic",
35 .mask = SND_JACK_MICROPHONE,
36 },
37 };
38
39 int cs42l42_rtd_init(struct snd_soc_pcm_runtime *rtd, struct snd_soc_dai *dai)
40 {
41 struct snd_soc_card *card = rtd->card;
42 struct mc_private *ctx = snd_soc_card_get_drvdata(card);
43 struct snd_soc_component *component;
44 struct snd_soc_jack *jack;
45 int ret;
46
47 component = dai->component;
48 card->components = devm_kasprintf(card->dev, GFP_KERNEL,
49 "%s hs:cs42l42",
50 card->components);
51 if (!card->components)
52 return -ENOMEM;
53
54 ret = snd_soc_dapm_add_routes(&card->dapm, cs42l42_map,
55 ARRAY_SIZE(cs42l42_map));
56
57 if (ret) {
58 dev_err(card->dev, "cs42l42 map addition failed: %d\n", ret);
59 return ret;
60 }
61
62 ret = snd_soc_card_jack_new_pins(rtd->card, "Headset Jack",
63 SND_JACK_HEADSET | SND_JACK_BTN_0 |
64 SND_JACK_BTN_1 | SND_JACK_BTN_2 |
65 SND_JACK_BTN_3,
66 &ctx->sdw_headset,
67 cs42l42_jack_pins,
68 ARRAY_SIZE(cs42l42_jack_pins));
69 if (ret) {
70 dev_err(rtd->card->dev, "Headset Jack creation failed: %d\n",
71 ret);
72 return ret;
73 }
74
75 jack = &ctx->sdw_headset;
76
77 snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
78 snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOLUMEUP);
79 snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEDOWN);
80 snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOICECOMMAND);
81
82 ret = snd_soc_component_set_jack(component, jack, NULL);
83
84 if (ret)
85 dev_err(rtd->card->dev, "Headset Jack call-back failed: %d\n",
86 ret);
87
88 return ret;
89 }
90 MODULE_IMPORT_NS(SND_SOC_INTEL_SOF_BOARD_HELPERS);
91
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