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Linux/sound/soc/amd/acp-da7219-max98357a.c

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  1 /*
  2  * Machine driver for AMD ACP Audio engine using DA7219 & MAX98357 codec
  3  *
  4  * Copyright 2017 Advanced Micro Devices, Inc.
  5  *
  6  * Permission is hereby granted, free of charge, to any person obtaining a
  7  * copy of this software and associated documentation files (the "Software"),
  8  * to deal in the Software without restriction, including without limitation
  9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 10  * and/or sell copies of the Software, and to permit persons to whom the
 11  * Software is furnished to do so, subject to the following conditions:
 12  *
 13  * The above copyright notice and this permission notice shall be included in
 14  * all copies or substantial portions of the Software.
 15  *
 16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 19  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 22  * OTHER DEALINGS IN THE SOFTWARE.
 23  *
 24  */
 25 
 26 #include <sound/core.h>
 27 #include <sound/soc.h>
 28 #include <sound/pcm.h>
 29 #include <sound/pcm_params.h>
 30 #include <sound/soc-dapm.h>
 31 #include <sound/jack.h>
 32 #include <linux/clk.h>
 33 #include <linux/gpio.h>
 34 #include <linux/module.h>
 35 #include <linux/regulator/machine.h>
 36 #include <linux/regulator/driver.h>
 37 #include <linux/i2c.h>
 38 #include <linux/input.h>
 39 #include <linux/acpi.h>
 40 
 41 #include "acp.h"
 42 #include "../codecs/da7219.h"
 43 #include "../codecs/da7219-aad.h"
 44 
 45 #define CZ_PLAT_CLK 48000000
 46 #define DUAL_CHANNEL            2
 47 
 48 static struct snd_soc_jack cz_jack;
 49 static struct clk *da7219_dai_clk;
 50 extern int bt_uart_enable;
 51 
 52 static int cz_da7219_init(struct snd_soc_pcm_runtime *rtd)
 53 {
 54         int ret;
 55         struct snd_soc_card *card = rtd->card;
 56         struct snd_soc_dai *codec_dai = rtd->codec_dai;
 57         struct snd_soc_component *component = codec_dai->component;
 58 
 59         dev_info(rtd->dev, "codec dai name = %s\n", codec_dai->name);
 60 
 61         ret = snd_soc_dai_set_sysclk(codec_dai, DA7219_CLKSRC_MCLK,
 62                                      CZ_PLAT_CLK, SND_SOC_CLOCK_IN);
 63         if (ret < 0) {
 64                 dev_err(rtd->dev, "can't set codec sysclk: %d\n", ret);
 65                 return ret;
 66         }
 67 
 68         ret = snd_soc_dai_set_pll(codec_dai, 0, DA7219_SYSCLK_PLL,
 69                                   CZ_PLAT_CLK, DA7219_PLL_FREQ_OUT_98304);
 70         if (ret < 0) {
 71                 dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
 72                 return ret;
 73         }
 74 
 75         da7219_dai_clk = clk_get(component->dev, "da7219-dai-clks");
 76 
 77         ret = snd_soc_card_jack_new(card, "Headset Jack",
 78                                 SND_JACK_HEADSET | SND_JACK_LINEOUT |
 79                                 SND_JACK_BTN_0 | SND_JACK_BTN_1 |
 80                                 SND_JACK_BTN_2 | SND_JACK_BTN_3,
 81                                 &cz_jack, NULL, 0);
 82         if (ret) {
 83                 dev_err(card->dev, "HP jack creation failed %d\n", ret);
 84                 return ret;
 85         }
 86 
 87         snd_jack_set_key(cz_jack.jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
 88         snd_jack_set_key(cz_jack.jack, SND_JACK_BTN_1, KEY_VOLUMEUP);
 89         snd_jack_set_key(cz_jack.jack, SND_JACK_BTN_2, KEY_VOLUMEDOWN);
 90         snd_jack_set_key(cz_jack.jack, SND_JACK_BTN_3, KEY_VOICECOMMAND);
 91 
 92         da7219_aad_jack_det(component, &cz_jack);
 93 
 94         return 0;
 95 }
 96 
 97 static int da7219_clk_enable(struct snd_pcm_substream *substream)
 98 {
 99         int ret = 0;
100         struct snd_soc_pcm_runtime *rtd = substream->private_data;
101 
102         ret = clk_prepare_enable(da7219_dai_clk);
103         if (ret < 0) {
104                 dev_err(rtd->dev, "can't enable master clock %d\n", ret);
105                 return ret;
106         }
107 
108         return ret;
109 }
110 
111 static void da7219_clk_disable(void)
112 {
113         clk_disable_unprepare(da7219_dai_clk);
114 }
115 
116 static const unsigned int channels[] = {
117         DUAL_CHANNEL,
118 };
119 
120 static const unsigned int rates[] = {
121         48000,
122 };
123 
124 static const struct snd_pcm_hw_constraint_list constraints_rates = {
125         .count = ARRAY_SIZE(rates),
126         .list  = rates,
127         .mask = 0,
128 };
129 
130 static const struct snd_pcm_hw_constraint_list constraints_channels = {
131         .count = ARRAY_SIZE(channels),
132         .list = channels,
133         .mask = 0,
134 };
135 
136 static int cz_da7219_play_startup(struct snd_pcm_substream *substream)
137 {
138         struct snd_pcm_runtime *runtime = substream->runtime;
139         struct snd_soc_pcm_runtime *rtd = substream->private_data;
140         struct snd_soc_card *card = rtd->card;
141         struct acp_platform_info *machine = snd_soc_card_get_drvdata(card);
142 
143         /*
144          * On this platform for PCM device we support stereo
145          */
146 
147         runtime->hw.channels_max = DUAL_CHANNEL;
148         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
149                                    &constraints_channels);
150         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
151                                    &constraints_rates);
152 
153         machine->play_i2s_instance = I2S_SP_INSTANCE;
154         return da7219_clk_enable(substream);
155 }
156 
157 static int cz_da7219_cap_startup(struct snd_pcm_substream *substream)
158 {
159         struct snd_pcm_runtime *runtime = substream->runtime;
160         struct snd_soc_pcm_runtime *rtd = substream->private_data;
161         struct snd_soc_card *card = rtd->card;
162         struct acp_platform_info *machine = snd_soc_card_get_drvdata(card);
163 
164         /*
165          * On this platform for PCM device we support stereo
166          */
167 
168         runtime->hw.channels_max = DUAL_CHANNEL;
169         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
170                                    &constraints_channels);
171         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
172                                    &constraints_rates);
173 
174         machine->cap_i2s_instance = I2S_SP_INSTANCE;
175         machine->capture_channel = CAP_CHANNEL1;
176         return da7219_clk_enable(substream);
177 }
178 
179 static void cz_da7219_shutdown(struct snd_pcm_substream *substream)
180 {
181         da7219_clk_disable();
182 }
183 
184 static int cz_max_startup(struct snd_pcm_substream *substream)
185 {
186         struct snd_pcm_runtime *runtime = substream->runtime;
187         struct snd_soc_pcm_runtime *rtd = substream->private_data;
188         struct snd_soc_card *card = rtd->card;
189         struct acp_platform_info *machine = snd_soc_card_get_drvdata(card);
190 
191         /*
192          * On this platform for PCM device we support stereo
193          */
194 
195         runtime->hw.channels_max = DUAL_CHANNEL;
196         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
197                                    &constraints_channels);
198         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
199                                    &constraints_rates);
200 
201         machine->play_i2s_instance = I2S_BT_INSTANCE;
202         return da7219_clk_enable(substream);
203 }
204 
205 static void cz_max_shutdown(struct snd_pcm_substream *substream)
206 {
207         da7219_clk_disable();
208 }
209 
210 static int cz_dmic0_startup(struct snd_pcm_substream *substream)
211 {
212         struct snd_pcm_runtime *runtime = substream->runtime;
213         struct snd_soc_pcm_runtime *rtd = substream->private_data;
214         struct snd_soc_card *card = rtd->card;
215         struct acp_platform_info *machine = snd_soc_card_get_drvdata(card);
216 
217         /*
218          * On this platform for PCM device we support stereo
219          */
220 
221         runtime->hw.channels_max = DUAL_CHANNEL;
222         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
223                                    &constraints_channels);
224         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
225                                    &constraints_rates);
226 
227         machine->cap_i2s_instance = I2S_BT_INSTANCE;
228         return da7219_clk_enable(substream);
229 }
230 
231 static int cz_dmic1_startup(struct snd_pcm_substream *substream)
232 {
233         struct snd_pcm_runtime *runtime = substream->runtime;
234         struct snd_soc_pcm_runtime *rtd = substream->private_data;
235         struct snd_soc_card *card = rtd->card;
236         struct acp_platform_info *machine = snd_soc_card_get_drvdata(card);
237 
238         /*
239          * On this platform for PCM device we support stereo
240          */
241 
242         runtime->hw.channels_max = DUAL_CHANNEL;
243         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
244                                    &constraints_channels);
245         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
246                                    &constraints_rates);
247 
248         machine->cap_i2s_instance = I2S_SP_INSTANCE;
249         machine->capture_channel = CAP_CHANNEL0;
250         return da7219_clk_enable(substream);
251 }
252 
253 static void cz_dmic_shutdown(struct snd_pcm_substream *substream)
254 {
255         da7219_clk_disable();
256 }
257 
258 static const struct snd_soc_ops cz_da7219_play_ops = {
259         .startup = cz_da7219_play_startup,
260         .shutdown = cz_da7219_shutdown,
261 };
262 
263 static const struct snd_soc_ops cz_da7219_cap_ops = {
264         .startup = cz_da7219_cap_startup,
265         .shutdown = cz_da7219_shutdown,
266 };
267 
268 static const struct snd_soc_ops cz_max_play_ops = {
269         .startup = cz_max_startup,
270         .shutdown = cz_max_shutdown,
271 };
272 
273 static const struct snd_soc_ops cz_dmic0_cap_ops = {
274         .startup = cz_dmic0_startup,
275         .shutdown = cz_dmic_shutdown,
276 };
277 
278 static const struct snd_soc_ops cz_dmic1_cap_ops = {
279         .startup = cz_dmic1_startup,
280         .shutdown = cz_dmic_shutdown,
281 };
282 
283 static struct snd_soc_dai_link cz_dai_7219_98357[] = {
284         {
285                 .name = "amd-da7219-play",
286                 .stream_name = "Playback",
287                 .platform_name = "acp_audio_dma.0.auto",
288                 .cpu_dai_name = "designware-i2s.1.auto",
289                 .codec_dai_name = "da7219-hifi",
290                 .codec_name = "i2c-DLGS7219:00",
291                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
292                                 | SND_SOC_DAIFMT_CBM_CFM,
293                 .init = cz_da7219_init,
294                 .dpcm_playback = 1,
295                 .ops = &cz_da7219_play_ops,
296         },
297         {
298                 .name = "amd-da7219-cap",
299                 .stream_name = "Capture",
300                 .platform_name = "acp_audio_dma.0.auto",
301                 .cpu_dai_name = "designware-i2s.2.auto",
302                 .codec_dai_name = "da7219-hifi",
303                 .codec_name = "i2c-DLGS7219:00",
304                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
305                                 | SND_SOC_DAIFMT_CBM_CFM,
306                 .dpcm_capture = 1,
307                 .ops = &cz_da7219_cap_ops,
308         },
309         {
310                 .name = "amd-max98357-play",
311                 .stream_name = "HiFi Playback",
312                 .platform_name = "acp_audio_dma.0.auto",
313                 .cpu_dai_name = "designware-i2s.3.auto",
314                 .codec_dai_name = "HiFi",
315                 .codec_name = "MX98357A:00",
316                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
317                                 | SND_SOC_DAIFMT_CBM_CFM,
318                 .dpcm_playback = 1,
319                 .ops = &cz_max_play_ops,
320         },
321         {
322                 /* C panel DMIC */
323                 .name = "dmic0",
324                 .stream_name = "DMIC0 Capture",
325                 .platform_name = "acp_audio_dma.0.auto",
326                 .cpu_dai_name = "designware-i2s.3.auto",
327                 .codec_dai_name = "adau7002-hifi",
328                 .codec_name = "ADAU7002:00",
329                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
330                                 | SND_SOC_DAIFMT_CBM_CFM,
331                 .dpcm_capture = 1,
332                 .ops = &cz_dmic0_cap_ops,
333         },
334         {
335                 /* A/B panel DMIC */
336                 .name = "dmic1",
337                 .stream_name = "DMIC1 Capture",
338                 .platform_name = "acp_audio_dma.0.auto",
339                 .cpu_dai_name = "designware-i2s.2.auto",
340                 .codec_dai_name = "adau7002-hifi",
341                 .codec_name = "ADAU7002:00",
342                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
343                                 | SND_SOC_DAIFMT_CBM_CFM,
344                 .dpcm_capture = 1,
345                 .ops = &cz_dmic1_cap_ops,
346         },
347 };
348 
349 static const struct snd_soc_dapm_widget cz_widgets[] = {
350         SND_SOC_DAPM_HP("Headphones", NULL),
351         SND_SOC_DAPM_SPK("Speakers", NULL),
352         SND_SOC_DAPM_MIC("Headset Mic", NULL),
353         SND_SOC_DAPM_MIC("Int Mic", NULL),
354 };
355 
356 static const struct snd_soc_dapm_route cz_audio_route[] = {
357         {"Headphones", NULL, "HPL"},
358         {"Headphones", NULL, "HPR"},
359         {"MIC", NULL, "Headset Mic"},
360         {"Speakers", NULL, "Speaker"},
361         {"PDM_DAT", NULL, "Int Mic"},
362 };
363 
364 static const struct snd_kcontrol_new cz_mc_controls[] = {
365         SOC_DAPM_PIN_SWITCH("Headphones"),
366         SOC_DAPM_PIN_SWITCH("Speakers"),
367         SOC_DAPM_PIN_SWITCH("Headset Mic"),
368         SOC_DAPM_PIN_SWITCH("Int Mic"),
369 };
370 
371 static struct snd_soc_card cz_card = {
372         .name = "acpd7219m98357",
373         .owner = THIS_MODULE,
374         .dai_link = cz_dai_7219_98357,
375         .num_links = ARRAY_SIZE(cz_dai_7219_98357),
376         .dapm_widgets = cz_widgets,
377         .num_dapm_widgets = ARRAY_SIZE(cz_widgets),
378         .dapm_routes = cz_audio_route,
379         .num_dapm_routes = ARRAY_SIZE(cz_audio_route),
380         .controls = cz_mc_controls,
381         .num_controls = ARRAY_SIZE(cz_mc_controls),
382 };
383 
384 static struct regulator_consumer_supply acp_da7219_supplies[] = {
385         REGULATOR_SUPPLY("VDD", "i2c-DLGS7219:00"),
386         REGULATOR_SUPPLY("VDDMIC", "i2c-DLGS7219:00"),
387         REGULATOR_SUPPLY("VDDIO", "i2c-DLGS7219:00"),
388         REGULATOR_SUPPLY("IOVDD", "ADAU7002:00"),
389 };
390 
391 static struct regulator_init_data acp_da7219_data = {
392         .constraints = {
393                 .always_on = 1,
394         },
395         .num_consumer_supplies = ARRAY_SIZE(acp_da7219_supplies),
396         .consumer_supplies = acp_da7219_supplies,
397 };
398 
399 static struct regulator_config acp_da7219_cfg = {
400         .init_data = &acp_da7219_data,
401 };
402 
403 static struct regulator_ops acp_da7219_ops = {
404 };
405 
406 static const struct regulator_desc acp_da7219_desc = {
407         .name = "reg-fixed-1.8V",
408         .type = REGULATOR_VOLTAGE,
409         .owner = THIS_MODULE,
410         .ops = &acp_da7219_ops,
411         .fixed_uV = 1800000, /* 1.8V */
412         .n_voltages = 1,
413 };
414 
415 static int cz_probe(struct platform_device *pdev)
416 {
417         int ret;
418         struct snd_soc_card *card;
419         struct acp_platform_info *machine;
420         struct regulator_dev *rdev;
421 
422         acp_da7219_cfg.dev = &pdev->dev;
423         rdev = devm_regulator_register(&pdev->dev, &acp_da7219_desc,
424                                        &acp_da7219_cfg);
425         if (IS_ERR(rdev)) {
426                 dev_err(&pdev->dev, "Failed to register regulator: %d\n",
427                         (int)PTR_ERR(rdev));
428                 return -EINVAL;
429         }
430 
431         machine = devm_kzalloc(&pdev->dev, sizeof(struct acp_platform_info),
432                                GFP_KERNEL);
433         if (!machine)
434                 return -ENOMEM;
435         card = &cz_card;
436         cz_card.dev = &pdev->dev;
437         platform_set_drvdata(pdev, card);
438         snd_soc_card_set_drvdata(card, machine);
439         ret = devm_snd_soc_register_card(&pdev->dev, &cz_card);
440         if (ret) {
441                 dev_err(&pdev->dev,
442                                 "devm_snd_soc_register_card(%s) failed: %d\n",
443                                 cz_card.name, ret);
444                 return ret;
445         }
446         bt_uart_enable = !device_property_read_bool(&pdev->dev,
447                                                     "bt-pad-enable");
448         return 0;
449 }
450 
451 static const struct acpi_device_id cz_audio_acpi_match[] = {
452         { "AMD7219", 0 },
453         {},
454 };
455 MODULE_DEVICE_TABLE(acpi, cz_audio_acpi_match);
456 
457 static struct platform_driver cz_pcm_driver = {
458         .driver = {
459                 .name = "cz-da7219-max98357a",
460                 .acpi_match_table = ACPI_PTR(cz_audio_acpi_match),
461                 .pm = &snd_soc_pm_ops,
462         },
463         .probe = cz_probe,
464 };
465 
466 module_platform_driver(cz_pcm_driver);
467 
468 MODULE_AUTHOR("akshu.agrawal@amd.com");
469 MODULE_DESCRIPTION("DA7219 & MAX98357A audio support");
470 MODULE_LICENSE("GPL v2");
471 

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