1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Intel Baytrail SST RT5640 machine driver
4 * Copyright (c) 2014, Intel Corporation.
5 */
6
7 #include <linux/init.h>
8 #include <linux/module.h>
9 #include <linux/platform_device.h>
10 #include <linux/acpi.h>
11 #include <linux/device.h>
12 #include <linux/dmi.h>
13 #include <linux/slab.h>
14 #include <sound/pcm.h>
15 #include <sound/pcm_params.h>
16 #include <sound/soc.h>
17 #include <sound/jack.h>
18 #include "../../codecs/rt5640.h"
19
20 #include "../common/sst-dsp.h"
21
22 static const struct snd_soc_dapm_widget byt_rt5640_widgets[] = {
23 SND_SOC_DAPM_HP("Headphone", NULL),
24 SND_SOC_DAPM_MIC("Headset Mic", NULL),
25 SND_SOC_DAPM_MIC("Internal Mic", NULL),
26 SND_SOC_DAPM_SPK("Speaker", NULL),
27 };
28
29 static const struct snd_soc_dapm_route byt_rt5640_audio_map[] = {
30 {"Headset Mic", NULL, "MICBIAS1"},
31 {"IN2P", NULL, "Headset Mic"},
32 {"Headphone", NULL, "HPOL"},
33 {"Headphone", NULL, "HPOR"},
34 {"Speaker", NULL, "SPOLP"},
35 {"Speaker", NULL, "SPOLN"},
36 {"Speaker", NULL, "SPORP"},
37 {"Speaker", NULL, "SPORN"},
38 };
39
40 static const struct snd_soc_dapm_route byt_rt5640_intmic_dmic1_map[] = {
41 {"DMIC1", NULL, "Internal Mic"},
42 };
43
44 static const struct snd_soc_dapm_route byt_rt5640_intmic_dmic2_map[] = {
45 {"DMIC2", NULL, "Internal Mic"},
46 };
47
48 static const struct snd_soc_dapm_route byt_rt5640_intmic_in1_map[] = {
49 {"Internal Mic", NULL, "MICBIAS1"},
50 {"IN1P", NULL, "Internal Mic"},
51 };
52
53 enum {
54 BYT_RT5640_DMIC1_MAP,
55 BYT_RT5640_DMIC2_MAP,
56 BYT_RT5640_IN1_MAP,
57 };
58
59 #define BYT_RT5640_MAP(quirk) ((quirk) & 0xff)
60 #define BYT_RT5640_DMIC_EN BIT(16)
61
62 static unsigned long byt_rt5640_quirk = BYT_RT5640_DMIC1_MAP |
63 BYT_RT5640_DMIC_EN;
64
65 static const struct snd_kcontrol_new byt_rt5640_controls[] = {
66 SOC_DAPM_PIN_SWITCH("Headphone"),
67 SOC_DAPM_PIN_SWITCH("Headset Mic"),
68 SOC_DAPM_PIN_SWITCH("Internal Mic"),
69 SOC_DAPM_PIN_SWITCH("Speaker"),
70 };
71
byt_rt5640_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params)72 static int byt_rt5640_hw_params(struct snd_pcm_substream *substream,
73 struct snd_pcm_hw_params *params)
74 {
75 struct snd_soc_pcm_runtime *rtd = substream->private_data;
76 struct snd_soc_dai *codec_dai = rtd->codec_dai;
77 int ret;
78
79 ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_PLL1,
80 params_rate(params) * 256,
81 SND_SOC_CLOCK_IN);
82 if (ret < 0) {
83 dev_err(codec_dai->dev, "can't set codec clock %d\n", ret);
84 return ret;
85 }
86 ret = snd_soc_dai_set_pll(codec_dai, 0, RT5640_PLL1_S_BCLK1,
87 params_rate(params) * 64,
88 params_rate(params) * 256);
89 if (ret < 0) {
90 dev_err(codec_dai->dev, "can't set codec pll: %d\n", ret);
91 return ret;
92 }
93 return 0;
94 }
95
byt_rt5640_quirk_cb(const struct dmi_system_id * id)96 static int byt_rt5640_quirk_cb(const struct dmi_system_id *id)
97 {
98 byt_rt5640_quirk = (unsigned long)id->driver_data;
99 return 1;
100 }
101
102 static const struct dmi_system_id byt_rt5640_quirk_table[] = {
103 {
104 .callback = byt_rt5640_quirk_cb,
105 .matches = {
106 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
107 DMI_MATCH(DMI_PRODUCT_NAME, "T100TA"),
108 },
109 .driver_data = (unsigned long *)BYT_RT5640_IN1_MAP,
110 },
111 {
112 .callback = byt_rt5640_quirk_cb,
113 .matches = {
114 DMI_MATCH(DMI_SYS_VENDOR, "DellInc."),
115 DMI_MATCH(DMI_PRODUCT_NAME, "Venue 8 Pro 5830"),
116 },
117 .driver_data = (unsigned long *)(BYT_RT5640_DMIC2_MAP |
118 BYT_RT5640_DMIC_EN),
119 },
120 {}
121 };
122
byt_rt5640_init(struct snd_soc_pcm_runtime * runtime)123 static int byt_rt5640_init(struct snd_soc_pcm_runtime *runtime)
124 {
125 int ret;
126 struct snd_soc_component *component = runtime->codec_dai->component;
127 struct snd_soc_card *card = runtime->card;
128 const struct snd_soc_dapm_route *custom_map;
129 int num_routes;
130
131 card->dapm.idle_bias_off = true;
132
133 ret = snd_soc_add_card_controls(card, byt_rt5640_controls,
134 ARRAY_SIZE(byt_rt5640_controls));
135 if (ret) {
136 dev_err(card->dev, "unable to add card controls\n");
137 return ret;
138 }
139
140 dmi_check_system(byt_rt5640_quirk_table);
141 switch (BYT_RT5640_MAP(byt_rt5640_quirk)) {
142 case BYT_RT5640_IN1_MAP:
143 custom_map = byt_rt5640_intmic_in1_map;
144 num_routes = ARRAY_SIZE(byt_rt5640_intmic_in1_map);
145 break;
146 case BYT_RT5640_DMIC2_MAP:
147 custom_map = byt_rt5640_intmic_dmic2_map;
148 num_routes = ARRAY_SIZE(byt_rt5640_intmic_dmic2_map);
149 break;
150 default:
151 custom_map = byt_rt5640_intmic_dmic1_map;
152 num_routes = ARRAY_SIZE(byt_rt5640_intmic_dmic1_map);
153 }
154
155 ret = snd_soc_dapm_add_routes(&card->dapm, custom_map, num_routes);
156 if (ret)
157 return ret;
158
159 if (byt_rt5640_quirk & BYT_RT5640_DMIC_EN) {
160 ret = rt5640_dmic_enable(component, 0, 0);
161 if (ret)
162 return ret;
163 }
164
165 snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone");
166 snd_soc_dapm_ignore_suspend(&card->dapm, "Speaker");
167
168 return ret;
169 }
170
171 static struct snd_soc_ops byt_rt5640_ops = {
172 .hw_params = byt_rt5640_hw_params,
173 };
174
175 SND_SOC_DAILINK_DEFS(audio,
176 DAILINK_COMP_ARRAY(COMP_CPU("baytrail-pcm-audio")),
177 DAILINK_COMP_ARRAY(COMP_CODEC("i2c-10EC5640:00", "rt5640-aif1")),
178 DAILINK_COMP_ARRAY(COMP_PLATFORM("baytrail-pcm-audio")));
179
180 static struct snd_soc_dai_link byt_rt5640_dais[] = {
181 {
182 .name = "Baytrail Audio",
183 .stream_name = "Audio",
184 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
185 SND_SOC_DAIFMT_CBS_CFS,
186 .init = byt_rt5640_init,
187 .ops = &byt_rt5640_ops,
188 SND_SOC_DAILINK_REG(audio),
189 },
190 };
191
192 static struct snd_soc_card byt_rt5640_card = {
193 .name = "byt-rt5640",
194 .owner = THIS_MODULE,
195 .dai_link = byt_rt5640_dais,
196 .num_links = ARRAY_SIZE(byt_rt5640_dais),
197 .dapm_widgets = byt_rt5640_widgets,
198 .num_dapm_widgets = ARRAY_SIZE(byt_rt5640_widgets),
199 .dapm_routes = byt_rt5640_audio_map,
200 .num_dapm_routes = ARRAY_SIZE(byt_rt5640_audio_map),
201 .fully_routed = true,
202 };
203
byt_rt5640_probe(struct platform_device * pdev)204 static int byt_rt5640_probe(struct platform_device *pdev)
205 {
206 struct snd_soc_card *card = &byt_rt5640_card;
207
208 card->dev = &pdev->dev;
209 return devm_snd_soc_register_card(&pdev->dev, card);
210 }
211
212 static struct platform_driver byt_rt5640_audio = {
213 .probe = byt_rt5640_probe,
214 .driver = {
215 .name = "byt-rt5640",
216 .pm = &snd_soc_pm_ops,
217 },
218 };
219 module_platform_driver(byt_rt5640_audio)
220
221 MODULE_DESCRIPTION("ASoC Intel(R) Baytrail Machine driver");
222 MODULE_AUTHOR("Omair Md Abdullah, Jarkko Nikula");
223 MODULE_LICENSE("GPL v2");
224 MODULE_ALIAS("platform:byt-rt5640");
225