~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

TOMOYO Linux Cross Reference
Linux/sound/soc/mediatek/mt2701/mt2701-cs42448.c

Version: ~ [ linux-6.0 ] ~ [ linux-5.19.12 ] ~ [ linux-5.18.19 ] ~ [ linux-5.17.15 ] ~ [ linux-5.16.20 ] ~ [ linux-5.15.71 ] ~ [ linux-5.14.21 ] ~ [ linux-5.13.19 ] ~ [ linux-5.12.19 ] ~ [ linux-5.11.22 ] ~ [ linux-5.10.146 ] ~ [ linux-5.9.16 ] ~ [ linux-5.8.18 ] ~ [ linux-5.7.19 ] ~ [ linux-5.6.19 ] ~ [ linux-5.5.19 ] ~ [ linux-5.4.215 ] ~ [ linux-5.3.18 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.260 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.295 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.330 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.302 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.10.108 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.9 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  1 /*
  2  * mt2701-cs42448.c  --  MT2701 CS42448 ALSA SoC machine driver
  3  *
  4  * Copyright (c) 2016 MediaTek Inc.
  5  * Author: Ir Lian <ir.lian@mediatek.com>
  6  *              Garlic Tseng <garlic.tseng@mediatek.com>
  7  *
  8  *
  9  * This program is free software; you can redistribute it and/or modify
 10  * it under the terms of the GNU General Public License version 2 and
 11  * only version 2 as published by the Free Software Foundation.
 12  *
 13  * This program is distributed in the hope that it will be useful,
 14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
 15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 16  * GNU General Public License for more details.
 17  */
 18 
 19 #include <linux/module.h>
 20 #include <sound/soc.h>
 21 #include <linux/delay.h>
 22 #include <linux/gpio.h>
 23 #include <linux/pinctrl/consumer.h>
 24 #include <linux/of_gpio.h>
 25 
 26 #include "mt2701-afe-common.h"
 27 
 28 struct mt2701_cs42448_private {
 29         int i2s1_in_mux;
 30         int i2s1_in_mux_gpio_sel_1;
 31         int i2s1_in_mux_gpio_sel_2;
 32 };
 33 
 34 static const char * const i2sin_mux_switch_text[] = {
 35         "ADC_SDOUT2",
 36         "ADC_SDOUT3",
 37         "I2S_IN_1",
 38         "I2S_IN_2",
 39 };
 40 
 41 static const struct soc_enum i2sin_mux_enum =
 42         SOC_ENUM_SINGLE_EXT(4, i2sin_mux_switch_text);
 43 
 44 static int mt2701_cs42448_i2sin1_mux_get(struct snd_kcontrol *kcontrol,
 45                                          struct snd_ctl_elem_value *ucontrol)
 46 {
 47         struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
 48         struct mt2701_cs42448_private *priv = snd_soc_card_get_drvdata(card);
 49 
 50         ucontrol->value.integer.value[0] = priv->i2s1_in_mux;
 51         return 0;
 52 }
 53 
 54 static int mt2701_cs42448_i2sin1_mux_set(struct snd_kcontrol *kcontrol,
 55                                          struct snd_ctl_elem_value *ucontrol)
 56 {
 57         struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
 58         struct mt2701_cs42448_private *priv = snd_soc_card_get_drvdata(card);
 59 
 60         if (ucontrol->value.integer.value[0] == priv->i2s1_in_mux)
 61                 return 0;
 62 
 63         switch (ucontrol->value.integer.value[0]) {
 64         case 0:
 65                 gpio_set_value(priv->i2s1_in_mux_gpio_sel_1, 0);
 66                 gpio_set_value(priv->i2s1_in_mux_gpio_sel_2, 0);
 67                 break;
 68         case 1:
 69                 gpio_set_value(priv->i2s1_in_mux_gpio_sel_1, 1);
 70                 gpio_set_value(priv->i2s1_in_mux_gpio_sel_2, 0);
 71                 break;
 72         case 2:
 73                 gpio_set_value(priv->i2s1_in_mux_gpio_sel_1, 0);
 74                 gpio_set_value(priv->i2s1_in_mux_gpio_sel_2, 1);
 75                 break;
 76         case 3:
 77                 gpio_set_value(priv->i2s1_in_mux_gpio_sel_1, 1);
 78                 gpio_set_value(priv->i2s1_in_mux_gpio_sel_2, 1);
 79                 break;
 80         default:
 81                 dev_warn(card->dev, "%s invalid setting\n", __func__);
 82         }
 83 
 84         priv->i2s1_in_mux = ucontrol->value.integer.value[0];
 85         return 0;
 86 }
 87 
 88 static const struct snd_soc_dapm_widget
 89                         mt2701_cs42448_asoc_card_dapm_widgets[] = {
 90         SND_SOC_DAPM_LINE("Line Out Jack", NULL),
 91         SND_SOC_DAPM_MIC("AMIC", NULL),
 92         SND_SOC_DAPM_LINE("Tuner In", NULL),
 93         SND_SOC_DAPM_LINE("Satellite Tuner In", NULL),
 94         SND_SOC_DAPM_LINE("AUX In", NULL),
 95 };
 96 
 97 static const struct snd_kcontrol_new mt2701_cs42448_controls[] = {
 98         SOC_DAPM_PIN_SWITCH("Line Out Jack"),
 99         SOC_DAPM_PIN_SWITCH("AMIC"),
100         SOC_DAPM_PIN_SWITCH("Tuner In"),
101         SOC_DAPM_PIN_SWITCH("Satellite Tuner In"),
102         SOC_DAPM_PIN_SWITCH("AUX In"),
103         SOC_ENUM_EXT("I2SIN1_MUX_Switch", i2sin_mux_enum,
104                      mt2701_cs42448_i2sin1_mux_get,
105                      mt2701_cs42448_i2sin1_mux_set),
106 };
107 
108 static const unsigned int mt2701_cs42448_sampling_rates[] = {48000};
109 
110 static const struct snd_pcm_hw_constraint_list mt2701_cs42448_constraints_rates = {
111                 .count = ARRAY_SIZE(mt2701_cs42448_sampling_rates),
112                 .list = mt2701_cs42448_sampling_rates,
113                 .mask = 0,
114 };
115 
116 static int mt2701_cs42448_fe_ops_startup(struct snd_pcm_substream *substream)
117 {
118         int err;
119 
120         err = snd_pcm_hw_constraint_list(substream->runtime, 0,
121                                          SNDRV_PCM_HW_PARAM_RATE,
122                                          &mt2701_cs42448_constraints_rates);
123         if (err < 0) {
124                 dev_err(substream->pcm->card->dev,
125                         "%s snd_pcm_hw_constraint_list failed: 0x%x\n",
126                         __func__, err);
127                 return err;
128         }
129         return 0;
130 }
131 
132 static const struct snd_soc_ops mt2701_cs42448_48k_fe_ops = {
133         .startup = mt2701_cs42448_fe_ops_startup,
134 };
135 
136 static int mt2701_cs42448_be_ops_hw_params(struct snd_pcm_substream *substream,
137                                            struct snd_pcm_hw_params *params)
138 {
139         struct snd_soc_pcm_runtime *rtd = substream->private_data;
140         struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
141         struct snd_soc_dai *codec_dai = rtd->codec_dai;
142         unsigned int mclk_rate;
143         unsigned int rate = params_rate(params);
144         unsigned int div_mclk_over_bck = rate > 192000 ? 2 : 4;
145         unsigned int div_bck_over_lrck = 64;
146 
147         mclk_rate = rate * div_bck_over_lrck * div_mclk_over_bck;
148 
149         /* mt2701 mclk */
150         snd_soc_dai_set_sysclk(cpu_dai, 0, mclk_rate, SND_SOC_CLOCK_OUT);
151 
152         /* codec mclk */
153         snd_soc_dai_set_sysclk(codec_dai, 0, mclk_rate, SND_SOC_CLOCK_IN);
154 
155         return 0;
156 }
157 
158 static struct snd_soc_ops mt2701_cs42448_be_ops = {
159         .hw_params = mt2701_cs42448_be_ops_hw_params
160 };
161 
162 enum {
163         DAI_LINK_FE_MULTI_CH_OUT,
164         DAI_LINK_FE_PCM0_IN,
165         DAI_LINK_FE_PCM1_IN,
166         DAI_LINK_FE_BT_OUT,
167         DAI_LINK_FE_BT_IN,
168         DAI_LINK_BE_I2S0,
169         DAI_LINK_BE_I2S1,
170         DAI_LINK_BE_I2S2,
171         DAI_LINK_BE_I2S3,
172         DAI_LINK_BE_MRG_BT,
173 };
174 
175 static struct snd_soc_dai_link mt2701_cs42448_dai_links[] = {
176         /* FE */
177         [DAI_LINK_FE_MULTI_CH_OUT] = {
178                 .name = "mt2701-cs42448-multi-ch-out",
179                 .stream_name = "mt2701-cs42448-multi-ch-out",
180                 .cpu_dai_name = "PCM_multi",
181                 .codec_name = "snd-soc-dummy",
182                 .codec_dai_name = "snd-soc-dummy-dai",
183                 .trigger = {SND_SOC_DPCM_TRIGGER_POST,
184                             SND_SOC_DPCM_TRIGGER_POST},
185                 .ops = &mt2701_cs42448_48k_fe_ops,
186                 .dynamic = 1,
187                 .dpcm_playback = 1,
188         },
189         [DAI_LINK_FE_PCM0_IN] = {
190                 .name = "mt2701-cs42448-pcm0",
191                 .stream_name = "mt2701-cs42448-pcm0-data-UL",
192                 .cpu_dai_name = "PCM0",
193                 .codec_name = "snd-soc-dummy",
194                 .codec_dai_name = "snd-soc-dummy-dai",
195                 .trigger = {SND_SOC_DPCM_TRIGGER_POST,
196                             SND_SOC_DPCM_TRIGGER_POST},
197                 .ops = &mt2701_cs42448_48k_fe_ops,
198                 .dynamic = 1,
199                 .dpcm_capture = 1,
200         },
201         [DAI_LINK_FE_PCM1_IN] = {
202                 .name = "mt2701-cs42448-pcm1-data-UL",
203                 .stream_name = "mt2701-cs42448-pcm1-data-UL",
204                 .cpu_dai_name = "PCM1",
205                 .codec_name = "snd-soc-dummy",
206                 .codec_dai_name = "snd-soc-dummy-dai",
207                 .trigger = {SND_SOC_DPCM_TRIGGER_POST,
208                             SND_SOC_DPCM_TRIGGER_POST},
209                 .ops = &mt2701_cs42448_48k_fe_ops,
210                 .dynamic = 1,
211                 .dpcm_capture = 1,
212         },
213         [DAI_LINK_FE_BT_OUT] = {
214                 .name = "mt2701-cs42448-pcm-BT-out",
215                 .stream_name = "mt2701-cs42448-pcm-BT",
216                 .cpu_dai_name = "PCM_BT_DL",
217                 .codec_name = "snd-soc-dummy",
218                 .codec_dai_name = "snd-soc-dummy-dai",
219                 .trigger = {SND_SOC_DPCM_TRIGGER_POST,
220                             SND_SOC_DPCM_TRIGGER_POST},
221                 .dynamic = 1,
222                 .dpcm_playback = 1,
223         },
224         [DAI_LINK_FE_BT_IN] = {
225                 .name = "mt2701-cs42448-pcm-BT-in",
226                 .stream_name = "mt2701-cs42448-pcm-BT",
227                 .cpu_dai_name = "PCM_BT_UL",
228                 .codec_name = "snd-soc-dummy",
229                 .codec_dai_name = "snd-soc-dummy-dai",
230                 .trigger = {SND_SOC_DPCM_TRIGGER_POST,
231                             SND_SOC_DPCM_TRIGGER_POST},
232                 .dynamic = 1,
233                 .dpcm_capture = 1,
234         },
235         /* BE */
236         [DAI_LINK_BE_I2S0] = {
237                 .name = "mt2701-cs42448-I2S0",
238                 .cpu_dai_name = "I2S0",
239                 .no_pcm = 1,
240                 .codec_dai_name = "cs42448",
241                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS
242                          | SND_SOC_DAIFMT_GATED,
243                 .ops = &mt2701_cs42448_be_ops,
244                 .dpcm_playback = 1,
245                 .dpcm_capture = 1,
246         },
247         [DAI_LINK_BE_I2S1] = {
248                 .name = "mt2701-cs42448-I2S1",
249                 .cpu_dai_name = "I2S1",
250                 .no_pcm = 1,
251                 .codec_dai_name = "cs42448",
252                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS
253                          | SND_SOC_DAIFMT_GATED,
254                 .ops = &mt2701_cs42448_be_ops,
255                 .dpcm_playback = 1,
256                 .dpcm_capture = 1,
257         },
258         [DAI_LINK_BE_I2S2] = {
259                 .name = "mt2701-cs42448-I2S2",
260                 .cpu_dai_name = "I2S2",
261                 .no_pcm = 1,
262                 .codec_dai_name = "cs42448",
263                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS
264                          | SND_SOC_DAIFMT_GATED,
265                 .ops = &mt2701_cs42448_be_ops,
266                 .dpcm_playback = 1,
267                 .dpcm_capture = 1,
268         },
269         [DAI_LINK_BE_I2S3] = {
270                 .name = "mt2701-cs42448-I2S3",
271                 .cpu_dai_name = "I2S3",
272                 .no_pcm = 1,
273                 .codec_dai_name = "cs42448",
274                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS
275                          | SND_SOC_DAIFMT_GATED,
276                 .ops = &mt2701_cs42448_be_ops,
277                 .dpcm_playback = 1,
278                 .dpcm_capture = 1,
279         },
280         [DAI_LINK_BE_MRG_BT] = {
281                 .name = "mt2701-cs42448-MRG-BT",
282                 .cpu_dai_name = "MRG BT",
283                 .no_pcm = 1,
284                 .codec_dai_name = "bt-sco-pcm-wb",
285                 .dpcm_playback = 1,
286                 .dpcm_capture = 1,
287         },
288 };
289 
290 static struct snd_soc_card mt2701_cs42448_soc_card = {
291         .name = "mt2701-cs42448",
292         .owner = THIS_MODULE,
293         .dai_link = mt2701_cs42448_dai_links,
294         .num_links = ARRAY_SIZE(mt2701_cs42448_dai_links),
295         .controls = mt2701_cs42448_controls,
296         .num_controls = ARRAY_SIZE(mt2701_cs42448_controls),
297         .dapm_widgets = mt2701_cs42448_asoc_card_dapm_widgets,
298         .num_dapm_widgets = ARRAY_SIZE(mt2701_cs42448_asoc_card_dapm_widgets),
299 };
300 
301 static int mt2701_cs42448_machine_probe(struct platform_device *pdev)
302 {
303         struct snd_soc_card *card = &mt2701_cs42448_soc_card;
304         int ret;
305         int i;
306         struct device_node *platform_node, *codec_node, *codec_node_bt_mrg;
307         struct mt2701_cs42448_private *priv =
308                 devm_kzalloc(&pdev->dev, sizeof(struct mt2701_cs42448_private),
309                              GFP_KERNEL);
310         struct device *dev = &pdev->dev;
311 
312         if (!priv)
313                 return -ENOMEM;
314 
315         platform_node = of_parse_phandle(pdev->dev.of_node,
316                                          "mediatek,platform", 0);
317         if (!platform_node) {
318                 dev_err(&pdev->dev, "Property 'platform' missing or invalid\n");
319                 return -EINVAL;
320         }
321         for (i = 0; i < card->num_links; i++) {
322                 if (mt2701_cs42448_dai_links[i].platform_name)
323                         continue;
324                 mt2701_cs42448_dai_links[i].platform_of_node = platform_node;
325         }
326 
327         card->dev = dev;
328 
329         codec_node = of_parse_phandle(pdev->dev.of_node,
330                                       "mediatek,audio-codec", 0);
331         if (!codec_node) {
332                 dev_err(&pdev->dev,
333                         "Property 'audio-codec' missing or invalid\n");
334                 return -EINVAL;
335         }
336         for (i = 0; i < card->num_links; i++) {
337                 if (mt2701_cs42448_dai_links[i].codec_name)
338                         continue;
339                 mt2701_cs42448_dai_links[i].codec_of_node = codec_node;
340         }
341 
342         codec_node_bt_mrg = of_parse_phandle(pdev->dev.of_node,
343                                              "mediatek,audio-codec-bt-mrg", 0);
344         if (!codec_node_bt_mrg) {
345                 dev_err(&pdev->dev,
346                         "Property 'audio-codec-bt-mrg' missing or invalid\n");
347                 return -EINVAL;
348         }
349         mt2701_cs42448_dai_links[DAI_LINK_BE_MRG_BT].codec_of_node
350                                                         = codec_node_bt_mrg;
351 
352         ret = snd_soc_of_parse_audio_routing(card, "audio-routing");
353         if (ret) {
354                 dev_err(&pdev->dev, "failed to parse audio-routing: %d\n", ret);
355                 return ret;
356         }
357 
358         priv->i2s1_in_mux_gpio_sel_1 =
359                 of_get_named_gpio(dev->of_node, "i2s1-in-sel-gpio1", 0);
360         if (gpio_is_valid(priv->i2s1_in_mux_gpio_sel_1)) {
361                 ret = devm_gpio_request(dev, priv->i2s1_in_mux_gpio_sel_1,
362                                         "i2s1_in_mux_gpio_sel_1");
363                 if (ret)
364                         dev_warn(&pdev->dev, "%s devm_gpio_request fail %d\n",
365                                  __func__, ret);
366                 gpio_direction_output(priv->i2s1_in_mux_gpio_sel_1, 0);
367         }
368 
369         priv->i2s1_in_mux_gpio_sel_2 =
370                 of_get_named_gpio(dev->of_node, "i2s1-in-sel-gpio2", 0);
371         if (gpio_is_valid(priv->i2s1_in_mux_gpio_sel_2)) {
372                 ret = devm_gpio_request(dev, priv->i2s1_in_mux_gpio_sel_2,
373                                         "i2s1_in_mux_gpio_sel_2");
374                 if (ret)
375                         dev_warn(&pdev->dev, "%s devm_gpio_request fail2 %d\n",
376                                  __func__, ret);
377                 gpio_direction_output(priv->i2s1_in_mux_gpio_sel_2, 0);
378         }
379         snd_soc_card_set_drvdata(card, priv);
380 
381         ret = devm_snd_soc_register_card(&pdev->dev, card);
382 
383         if (ret)
384                 dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n",
385                         __func__, ret);
386         return ret;
387 }
388 
389 #ifdef CONFIG_OF
390 static const struct of_device_id mt2701_cs42448_machine_dt_match[] = {
391         {.compatible = "mediatek,mt2701-cs42448-machine",},
392         {}
393 };
394 #endif
395 
396 static struct platform_driver mt2701_cs42448_machine = {
397         .driver = {
398                 .name = "mt2701-cs42448",
399                    #ifdef CONFIG_OF
400                    .of_match_table = mt2701_cs42448_machine_dt_match,
401                    #endif
402         },
403         .probe = mt2701_cs42448_machine_probe,
404 };
405 
406 module_platform_driver(mt2701_cs42448_machine);
407 
408 /* Module information */
409 MODULE_DESCRIPTION("MT2701 CS42448 ALSA SoC machine driver");
410 MODULE_AUTHOR("Ir Lian <ir.lian@mediatek.com>");
411 MODULE_LICENSE("GPL v2");
412 MODULE_ALIAS("mt2701 cs42448 soc card");
413 

~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

kernel.org | git.kernel.org | LWN.net | Project Home | Wiki (Japanese) | Wiki (English) | SVN repository | Mail admin

Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.

osdn.jp