1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Rockchip machine ASoC driver for boards using a RT5645/RT5650 CODEC.
4 *
5 * Copyright (c) 2015, ROCKCHIP CORPORATION. All rights reserved.
6 */
7
8 #include <linux/module.h>
9 #include <linux/platform_device.h>
10 #include <linux/slab.h>
11 #include <linux/gpio.h>
12 #include <linux/of_gpio.h>
13 #include <linux/delay.h>
14 #include <sound/core.h>
15 #include <sound/jack.h>
16 #include <sound/pcm.h>
17 #include <sound/pcm_params.h>
18 #include <sound/soc.h>
19 #include "rockchip_i2s.h"
20 #include "../codecs/rt5645.h"
21
22 #define DRV_NAME "rockchip-snd-rt5645"
23
24 static struct snd_soc_jack headset_jack;
25 static struct snd_soc_jack_pin headset_jack_pins[] = {
26 {
27 .pin = "Headphones",
28 .mask = SND_JACK_HEADPHONE,
29 },
30 {
31 .pin = "Headset Mic",
32 .mask = SND_JACK_MICROPHONE,
33 },
34 };
35
36 static const struct snd_soc_dapm_widget rk_dapm_widgets[] = {
37 SND_SOC_DAPM_HP("Headphones", NULL),
38 SND_SOC_DAPM_SPK("Speakers", NULL),
39 SND_SOC_DAPM_MIC("Headset Mic", NULL),
40 SND_SOC_DAPM_MIC("Int Mic", NULL),
41 };
42
43 static const struct snd_soc_dapm_route rk_audio_map[] = {
44 /* Input Lines */
45 {"DMIC L2", NULL, "Int Mic"},
46 {"DMIC R2", NULL, "Int Mic"},
47 {"RECMIXL", NULL, "Headset Mic"},
48 {"RECMIXR", NULL, "Headset Mic"},
49
50 /* Output Lines */
51 {"Headphones", NULL, "HPOR"},
52 {"Headphones", NULL, "HPOL"},
53 {"Speakers", NULL, "SPOL"},
54 {"Speakers", NULL, "SPOR"},
55 };
56
57 static const struct snd_kcontrol_new rk_mc_controls[] = {
58 SOC_DAPM_PIN_SWITCH("Headphones"),
59 SOC_DAPM_PIN_SWITCH("Speakers"),
60 SOC_DAPM_PIN_SWITCH("Headset Mic"),
61 SOC_DAPM_PIN_SWITCH("Int Mic"),
62 };
63
rk_aif1_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params)64 static int rk_aif1_hw_params(struct snd_pcm_substream *substream,
65 struct snd_pcm_hw_params *params)
66 {
67 int ret = 0;
68 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
69 struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
70 struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
71 int mclk;
72
73 switch (params_rate(params)) {
74 case 8000:
75 case 16000:
76 case 24000:
77 case 32000:
78 case 48000:
79 case 64000:
80 case 96000:
81 mclk = 12288000;
82 break;
83 case 11025:
84 case 22050:
85 case 44100:
86 case 88200:
87 mclk = 11289600;
88 break;
89 default:
90 return -EINVAL;
91 }
92
93 ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk,
94 SND_SOC_CLOCK_OUT);
95 if (ret < 0) {
96 dev_err(codec_dai->dev, "Can't set codec clock %d\n", ret);
97 return ret;
98 }
99
100 ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
101 SND_SOC_CLOCK_IN);
102 if (ret < 0) {
103 dev_err(codec_dai->dev, "Can't set codec clock %d\n", ret);
104 return ret;
105 }
106
107 return ret;
108 }
109
rk_init(struct snd_soc_pcm_runtime * runtime)110 static int rk_init(struct snd_soc_pcm_runtime *runtime)
111 {
112 struct snd_soc_card *card = runtime->card;
113 int ret;
114
115 /* Enable Headset and 4 Buttons Jack detection */
116 ret = snd_soc_card_jack_new_pins(card, "Headset Jack",
117 SND_JACK_HEADPHONE | SND_JACK_MICROPHONE |
118 SND_JACK_BTN_0 | SND_JACK_BTN_1 |
119 SND_JACK_BTN_2 | SND_JACK_BTN_3,
120 &headset_jack,
121 headset_jack_pins,
122 ARRAY_SIZE(headset_jack_pins));
123 if (ret) {
124 dev_err(card->dev, "New Headset Jack failed! (%d)\n", ret);
125 return ret;
126 }
127
128 return rt5645_set_jack_detect(asoc_rtd_to_codec(runtime, 0)->component,
129 &headset_jack,
130 &headset_jack,
131 &headset_jack);
132 }
133
134 static const struct snd_soc_ops rk_aif1_ops = {
135 .hw_params = rk_aif1_hw_params,
136 };
137
138 SND_SOC_DAILINK_DEFS(pcm,
139 DAILINK_COMP_ARRAY(COMP_EMPTY()),
140 DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "rt5645-aif1")),
141 DAILINK_COMP_ARRAY(COMP_EMPTY()));
142
143 static struct snd_soc_dai_link rk_dailink = {
144 .name = "rt5645",
145 .stream_name = "rt5645 PCM",
146 .init = rk_init,
147 .ops = &rk_aif1_ops,
148 /* set rt5645 as slave */
149 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
150 SND_SOC_DAIFMT_CBS_CFS,
151 SND_SOC_DAILINK_REG(pcm),
152 };
153
154 static struct snd_soc_card snd_soc_card_rk = {
155 .name = "I2S-RT5650",
156 .owner = THIS_MODULE,
157 .dai_link = &rk_dailink,
158 .num_links = 1,
159 .dapm_widgets = rk_dapm_widgets,
160 .num_dapm_widgets = ARRAY_SIZE(rk_dapm_widgets),
161 .dapm_routes = rk_audio_map,
162 .num_dapm_routes = ARRAY_SIZE(rk_audio_map),
163 .controls = rk_mc_controls,
164 .num_controls = ARRAY_SIZE(rk_mc_controls),
165 };
166
snd_rk_mc_probe(struct platform_device * pdev)167 static int snd_rk_mc_probe(struct platform_device *pdev)
168 {
169 int ret = 0;
170 struct snd_soc_card *card = &snd_soc_card_rk;
171 struct device_node *np = pdev->dev.of_node;
172
173 /* register the soc card */
174 card->dev = &pdev->dev;
175
176 rk_dailink.codecs->of_node = of_parse_phandle(np,
177 "rockchip,audio-codec", 0);
178 if (!rk_dailink.codecs->of_node) {
179 dev_err(&pdev->dev,
180 "Property 'rockchip,audio-codec' missing or invalid\n");
181 return -EINVAL;
182 }
183
184 rk_dailink.cpus->of_node = of_parse_phandle(np,
185 "rockchip,i2s-controller", 0);
186 if (!rk_dailink.cpus->of_node) {
187 dev_err(&pdev->dev,
188 "Property 'rockchip,i2s-controller' missing or invalid\n");
189 ret = -EINVAL;
190 goto put_codec_of_node;
191 }
192
193 rk_dailink.platforms->of_node = rk_dailink.cpus->of_node;
194
195 ret = snd_soc_of_parse_card_name(card, "rockchip,model");
196 if (ret) {
197 dev_err(&pdev->dev,
198 "Soc parse card name failed %d\n", ret);
199 goto put_cpu_of_node;
200 }
201
202 ret = devm_snd_soc_register_card(&pdev->dev, card);
203 if (ret) {
204 dev_err(&pdev->dev,
205 "Soc register card failed %d\n", ret);
206 goto put_cpu_of_node;
207 }
208
209 return ret;
210
211 put_cpu_of_node:
212 of_node_put(rk_dailink.cpus->of_node);
213 rk_dailink.cpus->of_node = NULL;
214 put_codec_of_node:
215 of_node_put(rk_dailink.codecs->of_node);
216 rk_dailink.codecs->of_node = NULL;
217
218 return ret;
219 }
220
snd_rk_mc_remove(struct platform_device * pdev)221 static void snd_rk_mc_remove(struct platform_device *pdev)
222 {
223 of_node_put(rk_dailink.cpus->of_node);
224 rk_dailink.cpus->of_node = NULL;
225 of_node_put(rk_dailink.codecs->of_node);
226 rk_dailink.codecs->of_node = NULL;
227 }
228
229 static const struct of_device_id rockchip_rt5645_of_match[] = {
230 { .compatible = "rockchip,rockchip-audio-rt5645", },
231 {},
232 };
233
234 MODULE_DEVICE_TABLE(of, rockchip_rt5645_of_match);
235
236 static struct platform_driver snd_rk_mc_driver = {
237 .probe = snd_rk_mc_probe,
238 .remove_new = snd_rk_mc_remove,
239 .driver = {
240 .name = DRV_NAME,
241 .pm = &snd_soc_pm_ops,
242 .of_match_table = rockchip_rt5645_of_match,
243 },
244 };
245
246 module_platform_driver(snd_rk_mc_driver);
247
248 MODULE_AUTHOR("Xing Zheng <zhengxing@rock-chips.com>");
249 MODULE_DESCRIPTION("Rockchip rt5645 machine ASoC driver");
250 MODULE_LICENSE("GPL v2");
251 MODULE_ALIAS("platform:" DRV_NAME);
252