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
48static struct snd_soc_jack cz_jack;
49static struct clk *da7219_dai_clk;
50extern int bt_uart_enable;
51
52static 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
97static 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
111static void da7219_clk_disable(void)
112{
113 clk_disable_unprepare(da7219_dai_clk);
114}
115
116static const unsigned int channels[] = {
117 DUAL_CHANNEL,
118};
119
120static const unsigned int rates[] = {
121 48000,
122};
123
124static const struct snd_pcm_hw_constraint_list constraints_rates = {
125 .count = ARRAY_SIZE(rates),
126 .list = rates,
127 .mask = 0,
128};
129
130static const struct snd_pcm_hw_constraint_list constraints_channels = {
131 .count = ARRAY_SIZE(channels),
132 .list = channels,
133 .mask = 0,
134};
135
136static 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
157static 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
179static void cz_da7219_shutdown(struct snd_pcm_substream *substream)
180{
181 da7219_clk_disable();
182}
183
184static 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
205static void cz_max_shutdown(struct snd_pcm_substream *substream)
206{
207 da7219_clk_disable();
208}
209
210static 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
231static 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
253static void cz_dmic_shutdown(struct snd_pcm_substream *substream)
254{
255 da7219_clk_disable();
256}
257
258static const struct snd_soc_ops cz_da7219_play_ops = {
259 .startup = cz_da7219_play_startup,
260 .shutdown = cz_da7219_shutdown,
261};
262
263static const struct snd_soc_ops cz_da7219_cap_ops = {
264 .startup = cz_da7219_cap_startup,
265 .shutdown = cz_da7219_shutdown,
266};
267
268static const struct snd_soc_ops cz_max_play_ops = {
269 .startup = cz_max_startup,
270 .shutdown = cz_max_shutdown,
271};
272
273static const struct snd_soc_ops cz_dmic0_cap_ops = {
274 .startup = cz_dmic0_startup,
275 .shutdown = cz_dmic_shutdown,
276};
277
278static const struct snd_soc_ops cz_dmic1_cap_ops = {
279 .startup = cz_dmic1_startup,
280 .shutdown = cz_dmic_shutdown,
281};
282
283static 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
349static 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
356static 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
364static 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
371static 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
384static 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
391static 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
399static struct regulator_config acp_da7219_cfg = {
400 .init_data = &acp_da7219_data,
401};
402
403static struct regulator_ops acp_da7219_ops = {
404};
405
406static 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
415static 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
451static const struct acpi_device_id cz_audio_acpi_match[] = {
452 { "AMD7219", 0 },
453 {},
454};
455MODULE_DEVICE_TABLE(acpi, cz_audio_acpi_match);
456
457static 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
466module_platform_driver(cz_pcm_driver);
467
468MODULE_AUTHOR("akshu.agrawal@amd.com");
469MODULE_DESCRIPTION("DA7219 & MAX98357A audio support");
470MODULE_LICENSE("GPL v2");
471