1 // SPDX-License-Identifier: GPL-2.0-only
2 // Based on sof_sdw_rt5682.c
3 // This file incorporates work covered by the following copyright notice:
4 // Copyright (c) 2023 Intel Corporation
5 // Copyright (c) 2024 Advanced Micro Devices, Inc.
6
7 /*
8 * soc_sdw_cs42l43 - Helpers to handle CS42L43 from generic machine driver
9 */
10 #include <linux/device.h>
11 #include <linux/errno.h>
12 #include <linux/input.h>
13 #include <sound/jack.h>
14 #include <linux/soundwire/sdw.h>
15 #include <linux/soundwire/sdw_type.h>
16 #include <sound/cs42l43.h>
17 #include <sound/control.h>
18 #include <sound/soc.h>
19 #include <sound/soc-acpi.h>
20 #include <sound/soc-dapm.h>
21 #include <sound/soc_sdw_utils.h>
22
23 #define CS42L43_SPK_VOLUME_0DB 128 /* 0dB Max */
24
25 static const struct snd_soc_dapm_route cs42l43_hs_map[] = {
26 { "Headphone", NULL, "cs42l43 AMP3_OUT" },
27 { "Headphone", NULL, "cs42l43 AMP4_OUT" },
28 { "cs42l43 ADC1_IN1_P", NULL, "Headset Mic" },
29 { "cs42l43 ADC1_IN1_N", NULL, "Headset Mic" },
30 };
31
32 static const struct snd_soc_dapm_route cs42l43_spk_map[] = {
33 { "Speaker", NULL, "cs42l43 AMP1_OUT_P", },
34 { "Speaker", NULL, "cs42l43 AMP1_OUT_N", },
35 { "Speaker", NULL, "cs42l43 AMP2_OUT_P", },
36 { "Speaker", NULL, "cs42l43 AMP2_OUT_N", },
37 };
38
39 static const struct snd_soc_dapm_route cs42l43_dmic_map[] = {
40 { "cs42l43 PDM1_DIN", NULL, "DMIC" },
41 { "cs42l43 PDM2_DIN", NULL, "DMIC" },
42 };
43
44 static struct snd_soc_jack_pin soc_jack_pins[] = {
45 {
46 .pin = "Headphone",
47 .mask = SND_JACK_HEADPHONE,
48 },
49 {
50 .pin = "Headset Mic",
51 .mask = SND_JACK_MICROPHONE,
52 },
53 };
54
asoc_sdw_cs42l43_hs_rtd_init(struct snd_soc_pcm_runtime * rtd,struct snd_soc_dai * dai)55 int asoc_sdw_cs42l43_hs_rtd_init(struct snd_soc_pcm_runtime *rtd, struct snd_soc_dai *dai)
56 {
57 struct snd_soc_component *component = snd_soc_rtd_to_codec(rtd, 0)->component;
58 struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(rtd->card);
59 struct snd_soc_jack *jack = &ctx->sdw_headset;
60 struct snd_soc_card *card = rtd->card;
61 int ret;
62
63 card->components = devm_kasprintf(card->dev, GFP_KERNEL, "%s hs:cs42l43",
64 card->components);
65 if (!card->components)
66 return -ENOMEM;
67
68 ret = snd_soc_dapm_add_routes(&card->dapm, cs42l43_hs_map,
69 ARRAY_SIZE(cs42l43_hs_map));
70 if (ret) {
71 dev_err(card->dev, "cs42l43 hs map addition failed: %d\n", ret);
72 return ret;
73 }
74
75 ret = snd_soc_card_jack_new_pins(card, "Jack",
76 SND_JACK_MECHANICAL | SND_JACK_AVOUT |
77 SND_JACK_HEADSET | SND_JACK_LINEOUT |
78 SND_JACK_BTN_0 | SND_JACK_BTN_1 |
79 SND_JACK_BTN_2 | SND_JACK_BTN_3,
80 jack, soc_jack_pins,
81 ARRAY_SIZE(soc_jack_pins));
82 if (ret) {
83 dev_err(card->dev, "Failed to create jack: %d\n", ret);
84 return ret;
85 }
86
87 snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
88 snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
89 snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
90 snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
91
92 ret = snd_soc_component_set_jack(component, jack, NULL);
93 if (ret) {
94 dev_err(card->dev, "Failed to register jack: %d\n", ret);
95 return ret;
96 }
97
98 ret = snd_soc_component_set_sysclk(component, CS42L43_SYSCLK, CS42L43_SYSCLK_SDW,
99 0, SND_SOC_CLOCK_IN);
100 if (ret)
101 dev_err(card->dev, "Failed to set sysclk: %d\n", ret);
102
103 return ret;
104 }
105 EXPORT_SYMBOL_NS(asoc_sdw_cs42l43_hs_rtd_init, "SND_SOC_SDW_UTILS");
106
asoc_sdw_cs42l43_spk_rtd_init(struct snd_soc_pcm_runtime * rtd,struct snd_soc_dai * dai)107 int asoc_sdw_cs42l43_spk_rtd_init(struct snd_soc_pcm_runtime *rtd, struct snd_soc_dai *dai)
108 {
109 struct snd_soc_card *card = rtd->card;
110 struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card);
111 int ret;
112
113 if (!(ctx->mc_quirk & SOC_SDW_SIDECAR_AMPS)) {
114 /* Will be set by the bridge code in this case */
115 card->components = devm_kasprintf(card->dev, GFP_KERNEL,
116 "%s spk:cs42l43-spk",
117 card->components);
118 if (!card->components)
119 return -ENOMEM;
120 }
121
122 ret = snd_soc_limit_volume(card, "cs42l43 Speaker Digital Volume",
123 CS42L43_SPK_VOLUME_0DB);
124 if (ret)
125 dev_err(card->dev, "cs42l43 speaker volume limit failed: %d\n", ret);
126 else
127 dev_info(card->dev, "Setting CS42L43 Speaker volume limit to %d\n",
128 CS42L43_SPK_VOLUME_0DB);
129
130 ret = snd_soc_dapm_add_routes(&card->dapm, cs42l43_spk_map,
131 ARRAY_SIZE(cs42l43_spk_map));
132 if (ret)
133 dev_err(card->dev, "cs42l43 speaker map addition failed: %d\n", ret);
134
135 return ret;
136 }
137 EXPORT_SYMBOL_NS(asoc_sdw_cs42l43_spk_rtd_init, "SND_SOC_SDW_UTILS");
138
asoc_sdw_cs42l43_spk_init(struct snd_soc_card * card,struct snd_soc_dai_link * dai_links,struct asoc_sdw_codec_info * info,bool playback)139 int asoc_sdw_cs42l43_spk_init(struct snd_soc_card *card,
140 struct snd_soc_dai_link *dai_links,
141 struct asoc_sdw_codec_info *info,
142 bool playback)
143 {
144 /* Do init on playback link only. */
145 if (!playback)
146 return 0;
147
148 info->amp_num++;
149
150 return asoc_sdw_bridge_cs35l56_spk_init(card, dai_links, info, playback);
151 }
152 EXPORT_SYMBOL_NS(asoc_sdw_cs42l43_spk_init, "SND_SOC_SDW_UTILS");
153
asoc_sdw_cs42l43_dmic_rtd_init(struct snd_soc_pcm_runtime * rtd,struct snd_soc_dai * dai)154 int asoc_sdw_cs42l43_dmic_rtd_init(struct snd_soc_pcm_runtime *rtd, struct snd_soc_dai *dai)
155 {
156 struct snd_soc_card *card = rtd->card;
157 int ret;
158
159 card->components = devm_kasprintf(card->dev, GFP_KERNEL, "%s mic:cs42l43-dmic",
160 card->components);
161 if (!card->components)
162 return -ENOMEM;
163
164 ret = snd_soc_dapm_add_routes(&card->dapm, cs42l43_dmic_map,
165 ARRAY_SIZE(cs42l43_dmic_map));
166 if (ret)
167 dev_err(card->dev, "cs42l43 dmic map addition failed: %d\n", ret);
168
169 return ret;
170 }
171 EXPORT_SYMBOL_NS(asoc_sdw_cs42l43_dmic_rtd_init, "SND_SOC_SDW_UTILS");
172