1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * linux/sound/soc/pxa/brownstone.c
4 *
5 * Copyright (C) 2011 Marvell International Ltd.
6 */
7
8 #include <linux/module.h>
9 #include <sound/core.h>
10 #include <sound/pcm.h>
11 #include <sound/soc.h>
12 #include <sound/jack.h>
13
14 #include "../codecs/wm8994.h"
15 #include "mmp-sspa.h"
16
17 static const struct snd_kcontrol_new brownstone_dapm_control[] = {
18 SOC_DAPM_PIN_SWITCH("Ext Spk"),
19 };
20
21 static const struct snd_soc_dapm_widget brownstone_dapm_widgets[] = {
22 SND_SOC_DAPM_SPK("Ext Spk", NULL),
23 SND_SOC_DAPM_HP("Headset Stereophone", NULL),
24 SND_SOC_DAPM_MIC("Headset Mic", NULL),
25 SND_SOC_DAPM_MIC("Main Mic", NULL),
26 };
27
28 static const struct snd_soc_dapm_route brownstone_audio_map[] = {
29 {"Ext Spk", NULL, "SPKOUTLP"},
30 {"Ext Spk", NULL, "SPKOUTLN"},
31 {"Ext Spk", NULL, "SPKOUTRP"},
32 {"Ext Spk", NULL, "SPKOUTRN"},
33
34 {"Headset Stereophone", NULL, "HPOUT1L"},
35 {"Headset Stereophone", NULL, "HPOUT1R"},
36
37 {"IN1RN", NULL, "Headset Mic"},
38
39 {"DMIC1DAT", NULL, "MICBIAS1"},
40 {"MICBIAS1", NULL, "Main Mic"},
41 };
42
brownstone_wm8994_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params)43 static int brownstone_wm8994_hw_params(struct snd_pcm_substream *substream,
44 struct snd_pcm_hw_params *params)
45 {
46 struct snd_soc_pcm_runtime *rtd = substream->private_data;
47 struct snd_soc_dai *codec_dai = rtd->codec_dai;
48 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
49 int freq_out, sspa_mclk, sysclk;
50
51 if (params_rate(params) > 11025) {
52 freq_out = params_rate(params) * 512;
53 sysclk = params_rate(params) * 256;
54 sspa_mclk = params_rate(params) * 64;
55 } else {
56 freq_out = params_rate(params) * 1024;
57 sysclk = params_rate(params) * 512;
58 sspa_mclk = params_rate(params) * 64;
59 }
60
61 snd_soc_dai_set_sysclk(cpu_dai, MMP_SSPA_CLK_AUDIO, freq_out, 0);
62 snd_soc_dai_set_pll(cpu_dai, MMP_SYSCLK, 0, freq_out, sysclk);
63 snd_soc_dai_set_pll(cpu_dai, MMP_SSPA_CLK, 0, freq_out, sspa_mclk);
64
65 /* set wm8994 sysclk */
66 snd_soc_dai_set_sysclk(codec_dai, WM8994_SYSCLK_MCLK1, sysclk, 0);
67
68 return 0;
69 }
70
71 /* machine stream operations */
72 static const struct snd_soc_ops brownstone_ops = {
73 .hw_params = brownstone_wm8994_hw_params,
74 };
75
76 SND_SOC_DAILINK_DEFS(wm8994,
77 DAILINK_COMP_ARRAY(COMP_CPU("mmp-sspa-dai.0")),
78 DAILINK_COMP_ARRAY(COMP_CODEC("wm8994-codec", "wm8994-aif1")),
79 DAILINK_COMP_ARRAY(COMP_PLATFORM("mmp-pcm-audio")));
80
81 static struct snd_soc_dai_link brownstone_wm8994_dai[] = {
82 {
83 .name = "WM8994",
84 .stream_name = "WM8994 HiFi",
85 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
86 SND_SOC_DAIFMT_CBS_CFS,
87 .ops = &brownstone_ops,
88 SND_SOC_DAILINK_REG(wm8994),
89 },
90 };
91
92 /* audio machine driver */
93 static struct snd_soc_card brownstone = {
94 .name = "brownstone",
95 .owner = THIS_MODULE,
96 .dai_link = brownstone_wm8994_dai,
97 .num_links = ARRAY_SIZE(brownstone_wm8994_dai),
98
99 .controls = brownstone_dapm_control,
100 .num_controls = ARRAY_SIZE(brownstone_dapm_control),
101 .dapm_widgets = brownstone_dapm_widgets,
102 .num_dapm_widgets = ARRAY_SIZE(brownstone_dapm_widgets),
103 .dapm_routes = brownstone_audio_map,
104 .num_dapm_routes = ARRAY_SIZE(brownstone_audio_map),
105 .fully_routed = true,
106 };
107
brownstone_probe(struct platform_device * pdev)108 static int brownstone_probe(struct platform_device *pdev)
109 {
110 int ret;
111
112 brownstone.dev = &pdev->dev;
113 ret = devm_snd_soc_register_card(&pdev->dev, &brownstone);
114 if (ret)
115 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
116 ret);
117 return ret;
118 }
119
120 static struct platform_driver mmp_driver = {
121 .driver = {
122 .name = "brownstone-audio",
123 .pm = &snd_soc_pm_ops,
124 },
125 .probe = brownstone_probe,
126 };
127
128 module_platform_driver(mmp_driver);
129
130 MODULE_AUTHOR("Leo Yan <leoy@marvell.com>");
131 MODULE_DESCRIPTION("ALSA SoC Brownstone");
132 MODULE_LICENSE("GPL");
133 MODULE_ALIAS("platform:brownstone-audio");
134