1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * This file defines data structures and functions used in Machine
4  * Driver for Intel platforms with Cirrus Logic Codecs.
5  *
6  * Copyright 2022 Intel Corporation.
7  */
8 #include <linux/module.h>
9 #include <sound/sof.h>
10 #include "../../codecs/cs35l41.h"
11 #include "sof_cirrus_common.h"
12 
13 /*
14  * Cirrus Logic CS35L41/CS35L53
15  */
16 static const struct snd_kcontrol_new cs35l41_kcontrols[] = {
17 	SOC_DAPM_PIN_SWITCH("WL Spk"),
18 	SOC_DAPM_PIN_SWITCH("WR Spk"),
19 	SOC_DAPM_PIN_SWITCH("TL Spk"),
20 	SOC_DAPM_PIN_SWITCH("TR Spk"),
21 };
22 
23 static const struct snd_soc_dapm_widget cs35l41_dapm_widgets[] = {
24 	SND_SOC_DAPM_SPK("WL Spk", NULL),
25 	SND_SOC_DAPM_SPK("WR Spk", NULL),
26 	SND_SOC_DAPM_SPK("TL Spk", NULL),
27 	SND_SOC_DAPM_SPK("TR Spk", NULL),
28 };
29 
30 static const struct snd_soc_dapm_route cs35l41_dapm_routes[] = {
31 	/* speaker */
32 	{"WL Spk", NULL, "WL SPK"},
33 	{"WR Spk", NULL, "WR SPK"},
34 	{"TL Spk", NULL, "TL SPK"},
35 	{"TR Spk", NULL, "TR SPK"},
36 };
37 
38 static struct snd_soc_dai_link_component cs35l41_components[] = {
39 	{
40 		.name = CS35L41_DEV0_NAME,
41 		.dai_name = CS35L41_CODEC_DAI,
42 	},
43 	{
44 		.name = CS35L41_DEV1_NAME,
45 		.dai_name = CS35L41_CODEC_DAI,
46 	},
47 	{
48 		.name = CS35L41_DEV2_NAME,
49 		.dai_name = CS35L41_CODEC_DAI,
50 	},
51 	{
52 		.name = CS35L41_DEV3_NAME,
53 		.dai_name = CS35L41_CODEC_DAI,
54 	},
55 };
56 
57 static struct snd_soc_codec_conf cs35l41_codec_conf[] = {
58 	{
59 		.dlc = COMP_CODEC_CONF(CS35L41_DEV0_NAME),
60 		.name_prefix = "WL",
61 	},
62 	{
63 		.dlc = COMP_CODEC_CONF(CS35L41_DEV1_NAME),
64 		.name_prefix = "WR",
65 	},
66 	{
67 		.dlc = COMP_CODEC_CONF(CS35L41_DEV2_NAME),
68 		.name_prefix = "TL",
69 	},
70 	{
71 		.dlc = COMP_CODEC_CONF(CS35L41_DEV3_NAME),
72 		.name_prefix = "TR",
73 	},
74 };
75 
76 static int cs35l41_init(struct snd_soc_pcm_runtime *rtd)
77 {
78 	struct snd_soc_card *card = rtd->card;
79 	int ret;
80 
81 	ret = snd_soc_dapm_new_controls(&card->dapm, cs35l41_dapm_widgets,
82 					ARRAY_SIZE(cs35l41_dapm_widgets));
83 	if (ret) {
84 		dev_err(rtd->dev, "fail to add dapm controls, ret %d\n", ret);
85 		return ret;
86 	}
87 
88 	ret = snd_soc_add_card_controls(card, cs35l41_kcontrols,
89 					ARRAY_SIZE(cs35l41_kcontrols));
90 	if (ret) {
91 		dev_err(rtd->dev, "fail to add card controls, ret %d\n", ret);
92 		return ret;
93 	}
94 
95 	ret = snd_soc_dapm_add_routes(&card->dapm, cs35l41_dapm_routes,
96 				      ARRAY_SIZE(cs35l41_dapm_routes));
97 
98 	if (ret)
99 		dev_err(rtd->dev, "fail to add dapm routes, ret %d\n", ret);
100 
101 	return ret;
102 }
103 
104 static int cs35l41_hw_params(struct snd_pcm_substream *substream,
105 			     struct snd_pcm_hw_params *params)
106 {
107 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
108 	struct snd_soc_dai *codec_dai;
109 	int clk_freq, i, ret;
110 
111 	clk_freq = sof_dai_get_bclk(rtd); /* BCLK freq */
112 
113 	if (clk_freq <= 0) {
114 		dev_err(rtd->dev, "fail to get bclk freq, ret %d\n", clk_freq);
115 		return -EINVAL;
116 	}
117 
118 	for_each_rtd_codec_dais(rtd, i, codec_dai) {
119 		/* call dai driver's set_sysclk() callback */
120 		ret = snd_soc_dai_set_sysclk(codec_dai, CS35L41_CLKID_SCLK,
121 					     clk_freq, SND_SOC_CLOCK_IN);
122 		if (ret < 0) {
123 			dev_err(codec_dai->dev, "fail to set sysclk, ret %d\n",
124 				ret);
125 			return ret;
126 		}
127 
128 		/* call component driver's set_sysclk() callback */
129 		ret = snd_soc_component_set_sysclk(codec_dai->component,
130 						   CS35L41_CLKID_SCLK, 0,
131 						   clk_freq, SND_SOC_CLOCK_IN);
132 		if (ret < 0) {
133 			dev_err(codec_dai->dev, "fail to set component sysclk, ret %d\n",
134 				ret);
135 			return ret;
136 		}
137 	}
138 
139 	return 0;
140 }
141 
142 static const struct snd_soc_ops cs35l41_ops = {
143 	.hw_params = cs35l41_hw_params,
144 };
145 
146 void cs35l41_set_dai_link(struct snd_soc_dai_link *link)
147 {
148 	link->codecs = cs35l41_components;
149 	link->num_codecs = ARRAY_SIZE(cs35l41_components);
150 	link->init = cs35l41_init;
151 	link->ops = &cs35l41_ops;
152 }
153 EXPORT_SYMBOL_NS(cs35l41_set_dai_link, SND_SOC_INTEL_SOF_CIRRUS_COMMON);
154 
155 void cs35l41_set_codec_conf(struct snd_soc_card *card)
156 {
157 	card->codec_conf = cs35l41_codec_conf;
158 	card->num_configs = ARRAY_SIZE(cs35l41_codec_conf);
159 }
160 EXPORT_SYMBOL_NS(cs35l41_set_codec_conf, SND_SOC_INTEL_SOF_CIRRUS_COMMON);
161 
162 MODULE_DESCRIPTION("ASoC Intel SOF Cirrus Logic helpers");
163 MODULE_LICENSE("GPL");
164