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Linux/sound/soc/rockchip/rockchip_rt5645.c

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

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