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 | SND_JACK_LINEOUT,
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 struct snd_soc_dapm_context *dapm = snd_soc_card_to_dapm(card);
62 int ret;
63
64 card->components = devm_kasprintf(card->dev, GFP_KERNEL, "%s hs:cs42l43",
65 card->components);
66 if (!card->components)
67 return -ENOMEM;
68
69 ret = snd_soc_dapm_add_routes(dapm, cs42l43_hs_map,
70 ARRAY_SIZE(cs42l43_hs_map));
71 if (ret) {
72 dev_err(card->dev, "cs42l43 hs map addition failed: %d\n", ret);
73 return ret;
74 }
75
76 ret = snd_soc_card_jack_new_pins(card, "Jack",
77 SND_JACK_MECHANICAL | SND_JACK_AVOUT |
78 SND_JACK_HEADSET | SND_JACK_LINEOUT |
79 SND_JACK_BTN_0 | SND_JACK_BTN_1 |
80 SND_JACK_BTN_2 | SND_JACK_BTN_3,
81 jack, soc_jack_pins,
82 ARRAY_SIZE(soc_jack_pins));
83 if (ret) {
84 dev_err(card->dev, "Failed to create jack: %d\n", ret);
85 return ret;
86 }
87
88 snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
89 snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
90 snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
91 snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
92
93 ret = snd_soc_component_set_jack(component, jack, NULL);
94 if (ret) {
95 dev_err(card->dev, "Failed to register jack: %d\n", ret);
96 return ret;
97 }
98
99 ret = snd_soc_component_set_sysclk(component, CS42L43_SYSCLK, CS42L43_SYSCLK_SDW,
100 0, SND_SOC_CLOCK_IN);
101 if (ret)
102 dev_err(card->dev, "Failed to set sysclk: %d\n", ret);
103
104 return ret;
105 }
106 EXPORT_SYMBOL_NS(asoc_sdw_cs42l43_hs_rtd_init, "SND_SOC_SDW_UTILS");
107
asoc_sdw_cs42l43_spk_rtd_init(struct snd_soc_pcm_runtime * rtd,struct snd_soc_dai * dai)108 int asoc_sdw_cs42l43_spk_rtd_init(struct snd_soc_pcm_runtime *rtd, struct snd_soc_dai *dai)
109 {
110 struct snd_soc_component *component = dai->component;
111 struct snd_soc_card *card = rtd->card;
112 struct snd_soc_dapm_context *dapm = snd_soc_card_to_dapm(card);
113 int ret;
114
115 ret = snd_soc_limit_volume(card, "cs42l43 Speaker Digital Volume",
116 CS42L43_SPK_VOLUME_0DB);
117 if (ret)
118 dev_err(card->dev, "cs42l43 speaker volume limit failed: %d\n", ret);
119 else
120 dev_info(card->dev, "Setting CS42L43 Speaker volume limit to %d\n",
121 CS42L43_SPK_VOLUME_0DB);
122
123 ret = snd_soc_dapm_add_routes(dapm, cs42l43_spk_map,
124 ARRAY_SIZE(cs42l43_spk_map));
125 if (ret) {
126 dev_err(card->dev, "cs42l43 speaker map addition failed: %d\n", ret);
127 return ret;
128 }
129
130 ret = snd_soc_component_set_sysclk(component, CS42L43_SYSCLK, CS42L43_SYSCLK_SDW,
131 0, SND_SOC_CLOCK_IN);
132 if (ret)
133 dev_err(card->dev, "Failed to set sysclk: %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 struct snd_soc_dapm_context *dapm = snd_soc_card_to_dapm(card);
158 int ret;
159
160 card->components = devm_kasprintf(card->dev, GFP_KERNEL, "%s mic:cs42l43-dmic",
161 card->components);
162 if (!card->components)
163 return -ENOMEM;
164
165 ret = snd_soc_dapm_add_routes(dapm, cs42l43_dmic_map,
166 ARRAY_SIZE(cs42l43_dmic_map));
167 if (ret)
168 dev_err(card->dev, "cs42l43 dmic map addition failed: %d\n", ret);
169
170 return ret;
171 }
172 EXPORT_SYMBOL_NS(asoc_sdw_cs42l43_dmic_rtd_init, "SND_SOC_SDW_UTILS");
173