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Linux/sound/soc/rockchip/rockchip_max98090.c

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  1 /*
  2  * Rockchip machine ASoC driver for boards using a MAX90809 CODEC.
  3  *
  4  * Copyright (c) 2014, ROCKCHIP CORPORATION.  All rights reserved.
  5  *
  6  * This program is free software; you can redistribute it and/or modify it
  7  * under the terms and conditions of the GNU General Public License,
  8  * version 2, as published by the Free Software Foundation.
  9  *
 10  * This program is distributed in the hope it will be useful, but WITHOUT
 11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 13  * more details.
 14  *
 15  * You should have received a copy of the GNU General Public License
 16  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 17  *
 18  */
 19 
 20 #include <linux/module.h>
 21 #include <linux/platform_device.h>
 22 #include <linux/slab.h>
 23 #include <linux/gpio.h>
 24 #include <linux/of_gpio.h>
 25 #include <sound/core.h>
 26 #include <sound/jack.h>
 27 #include <sound/pcm.h>
 28 #include <sound/pcm_params.h>
 29 #include <sound/soc.h>
 30 
 31 #include "rockchip_i2s.h"
 32 #include "../codecs/ts3a227e.h"
 33 
 34 #define DRV_NAME "rockchip-snd-max98090"
 35 
 36 static struct snd_soc_jack headset_jack;
 37 
 38 /* Headset jack detection DAPM pins */
 39 static struct snd_soc_jack_pin headset_jack_pins[] = {
 40         {
 41                 .pin = "Headphone",
 42                 .mask = SND_JACK_HEADPHONE,
 43         },
 44         {
 45                 .pin = "Headset Mic",
 46                 .mask = SND_JACK_MICROPHONE,
 47         },
 48 
 49 };
 50 
 51 static const struct snd_soc_dapm_widget rk_dapm_widgets[] = {
 52         SND_SOC_DAPM_HP("Headphone", NULL),
 53         SND_SOC_DAPM_MIC("Headset Mic", NULL),
 54         SND_SOC_DAPM_MIC("Int Mic", NULL),
 55         SND_SOC_DAPM_SPK("Speaker", NULL),
 56 };
 57 
 58 static const struct snd_soc_dapm_route rk_audio_map[] = {
 59         {"IN34", NULL, "Headset Mic"},
 60         {"IN34", NULL, "MICBIAS"},
 61         {"Headset Mic", NULL, "MICBIAS"},
 62         {"DMICL", NULL, "Int Mic"},
 63         {"Headphone", NULL, "HPL"},
 64         {"Headphone", NULL, "HPR"},
 65         {"Speaker", NULL, "SPKL"},
 66         {"Speaker", NULL, "SPKR"},
 67 };
 68 
 69 static const struct snd_kcontrol_new rk_mc_controls[] = {
 70         SOC_DAPM_PIN_SWITCH("Headphone"),
 71         SOC_DAPM_PIN_SWITCH("Headset Mic"),
 72         SOC_DAPM_PIN_SWITCH("Int Mic"),
 73         SOC_DAPM_PIN_SWITCH("Speaker"),
 74 };
 75 
 76 static int rk_aif1_hw_params(struct snd_pcm_substream *substream,
 77                              struct snd_pcm_hw_params *params)
 78 {
 79         int ret = 0;
 80         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 81         struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
 82         struct snd_soc_dai *codec_dai = rtd->codec_dai;
 83         int mclk;
 84 
 85         switch (params_rate(params)) {
 86         case 8000:
 87         case 16000:
 88         case 24000:
 89         case 32000:
 90         case 48000:
 91         case 64000:
 92         case 96000:
 93                 mclk = 12288000;
 94                 break;
 95         case 11025:
 96         case 22050:
 97         case 44100:
 98         case 88200:
 99                 mclk = 11289600;
100                 break;
101         default:
102                 return -EINVAL;
103         }
104 
105         ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk,
106                                      SND_SOC_CLOCK_OUT);
107         if (ret < 0) {
108                 dev_err(codec_dai->dev, "Can't set codec clock %d\n", ret);
109                 return ret;
110         }
111 
112         ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
113                                      SND_SOC_CLOCK_IN);
114         if (ret < 0) {
115                 dev_err(codec_dai->dev, "Can't set codec clock %d\n", ret);
116                 return ret;
117         }
118 
119         return ret;
120 }
121 
122 static const struct snd_soc_ops rk_aif1_ops = {
123         .hw_params = rk_aif1_hw_params,
124 };
125 
126 static struct snd_soc_dai_link rk_dailink = {
127         .name = "max98090",
128         .stream_name = "Audio",
129         .codec_dai_name = "HiFi",
130         .ops = &rk_aif1_ops,
131         /* set max98090 as slave */
132         .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
133                 SND_SOC_DAIFMT_CBS_CFS,
134 };
135 
136 static int rk_98090_headset_init(struct snd_soc_component *component);
137 
138 static struct snd_soc_aux_dev rk_98090_headset_dev = {
139         .name = "Headset Chip",
140         .init = rk_98090_headset_init,
141 };
142 
143 static struct snd_soc_card snd_soc_card_rk = {
144         .name = "ROCKCHIP-I2S",
145         .owner = THIS_MODULE,
146         .dai_link = &rk_dailink,
147         .num_links = 1,
148         .aux_dev = &rk_98090_headset_dev,
149         .num_aux_devs = 1,
150         .dapm_widgets = rk_dapm_widgets,
151         .num_dapm_widgets = ARRAY_SIZE(rk_dapm_widgets),
152         .dapm_routes = rk_audio_map,
153         .num_dapm_routes = ARRAY_SIZE(rk_audio_map),
154         .controls = rk_mc_controls,
155         .num_controls = ARRAY_SIZE(rk_mc_controls),
156 };
157 
158 static int rk_98090_headset_init(struct snd_soc_component *component)
159 {
160         int ret;
161 
162         /* Enable Headset and 4 Buttons Jack detection */
163         ret = snd_soc_card_jack_new(&snd_soc_card_rk, "Headset Jack",
164                                     SND_JACK_HEADSET |
165                                     SND_JACK_BTN_0 | SND_JACK_BTN_1 |
166                                     SND_JACK_BTN_2 | SND_JACK_BTN_3,
167                                     &headset_jack,
168                                     headset_jack_pins,
169                                     ARRAY_SIZE(headset_jack_pins));
170         if (ret)
171                 return ret;
172 
173         ret = ts3a227e_enable_jack_detect(component, &headset_jack);
174 
175         return ret;
176 }
177 
178 static int snd_rk_mc_probe(struct platform_device *pdev)
179 {
180         int ret = 0;
181         struct snd_soc_card *card = &snd_soc_card_rk;
182         struct device_node *np = pdev->dev.of_node;
183 
184         /* register the soc card */
185         card->dev = &pdev->dev;
186 
187         rk_dailink.codec_of_node = of_parse_phandle(np,
188                         "rockchip,audio-codec", 0);
189         if (!rk_dailink.codec_of_node) {
190                 dev_err(&pdev->dev,
191                         "Property 'rockchip,audio-codec' missing or invalid\n");
192                 return -EINVAL;
193         }
194 
195         rk_dailink.cpu_of_node = of_parse_phandle(np,
196                         "rockchip,i2s-controller", 0);
197         if (!rk_dailink.cpu_of_node) {
198                 dev_err(&pdev->dev,
199                         "Property 'rockchip,i2s-controller' missing or invalid\n");
200                 return -EINVAL;
201         }
202 
203         rk_dailink.platform_of_node = rk_dailink.cpu_of_node;
204 
205         rk_98090_headset_dev.codec_of_node = of_parse_phandle(np,
206                         "rockchip,headset-codec", 0);
207         if (!rk_98090_headset_dev.codec_of_node) {
208                 dev_err(&pdev->dev,
209                         "Property 'rockchip,headset-codec' missing/invalid\n");
210                 return -EINVAL;
211         }
212 
213         ret = snd_soc_of_parse_card_name(card, "rockchip,model");
214         if (ret) {
215                 dev_err(&pdev->dev,
216                         "Soc parse card name failed %d\n", ret);
217                 return ret;
218         }
219 
220         ret = devm_snd_soc_register_card(&pdev->dev, card);
221         if (ret) {
222                 dev_err(&pdev->dev,
223                         "Soc register card failed %d\n", ret);
224                 return ret;
225         }
226 
227         return ret;
228 }
229 
230 static const struct of_device_id rockchip_max98090_of_match[] = {
231         { .compatible = "rockchip,rockchip-audio-max98090", },
232         {},
233 };
234 
235 MODULE_DEVICE_TABLE(of, rockchip_max98090_of_match);
236 
237 static struct platform_driver snd_rk_mc_driver = {
238         .probe = snd_rk_mc_probe,
239         .driver = {
240                 .name = DRV_NAME,
241                 .pm = &snd_soc_pm_ops,
242                 .of_match_table = rockchip_max98090_of_match,
243         },
244 };
245 
246 module_platform_driver(snd_rk_mc_driver);
247 
248 MODULE_AUTHOR("jianqun <jay.xu@rock-chips.com>");
249 MODULE_DESCRIPTION("Rockchip max98090 machine ASoC driver");
250 MODULE_LICENSE("GPL v2");
251 MODULE_ALIAS("platform:" DRV_NAME);
252 

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