1// SPDX-License-Identifier: GPL-2.0
2//
3// Freescale Generic ASoC Sound Card driver with ASRC
4//
5// Copyright (C) 2014 Freescale Semiconductor, Inc.
6//
7// Author: Nicolin Chen <nicoleotsuka@gmail.com>
8
9#include <linux/clk.h>
10#include <linux/i2c.h>
11#include <linux/module.h>
12#include <linux/of_platform.h>
13#if IS_ENABLED(CONFIG_SND_AC97_CODEC)
14#include <sound/ac97_codec.h>
15#endif
16#include <sound/pcm_params.h>
17#include <sound/soc.h>
18#include <sound/jack.h>
19#include <sound/simple_card_utils.h>
20
21#include "fsl_esai.h"
22#include "fsl_sai.h"
23#include "imx-audmux.h"
24
25#include "../codecs/sgtl5000.h"
26#include "../codecs/wm8962.h"
27#include "../codecs/wm8960.h"
28#include "../codecs/wm8994.h"
29#include "../codecs/tlv320aic31xx.h"
30#include "../codecs/nau8822.h"
31
32#define DRIVER_NAME "fsl-asoc-card"
33
34#define CS427x_SYSCLK_MCLK 0
35
36#define RX 0
37#define TX 1
38
39/* Default DAI format without Master and Slave flag */
40#define DAI_FMT_BASE (SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF)
41
42/**
43 * struct codec_priv - CODEC private data
44 * @mclk: Main clock of the CODEC
45 * @mclk_freq: Clock rate of MCLK
46 * @free_freq: Clock rate of MCLK for hw_free()
47 * @mclk_id: MCLK (or main clock) id for set_sysclk()
48 * @fll_id: FLL (or secordary clock) id for set_sysclk()
49 * @pll_id: PLL id for set_pll()
50 */
51struct codec_priv {
52 struct clk *mclk;
53 unsigned long mclk_freq;
54 unsigned long free_freq;
55 u32 mclk_id;
56 int fll_id;
57 int pll_id;
58};
59
60/**
61 * struct cpu_priv - CPU private data
62 * @sysclk_freq: SYSCLK rates for set_sysclk()
63 * @sysclk_dir: SYSCLK directions for set_sysclk()
64 * @sysclk_id: SYSCLK ids for set_sysclk()
65 * @slot_width: Slot width of each frame
66 * @slot_num: Number of slots of each frame
67 *
68 * Note: [1] for tx and [0] for rx
69 */
70struct cpu_priv {
71 unsigned long sysclk_freq[2];
72 u32 sysclk_dir[2];
73 u32 sysclk_id[2];
74 u32 slot_width;
75 u32 slot_num;
76};
77
78/**
79 * struct fsl_asoc_card_priv - Freescale Generic ASOC card private data
80 * @dai_link: DAI link structure including normal one and DPCM link
81 * @hp_jack: Headphone Jack structure
82 * @mic_jack: Microphone Jack structure
83 * @pdev: platform device pointer
84 * @codec_priv: CODEC private data
85 * @cpu_priv: CPU private data
86 * @card: ASoC card structure
87 * @streams: Mask of current active streams
88 * @sample_rate: Current sample rate
89 * @sample_format: Current sample format
90 * @asrc_rate: ASRC sample rate used by Back-Ends
91 * @asrc_format: ASRC sample format used by Back-Ends
92 * @dai_fmt: DAI format between CPU and CODEC
93 * @name: Card name
94 */
95
96struct fsl_asoc_card_priv {
97 struct snd_soc_dai_link dai_link[3];
98 struct simple_util_jack hp_jack;
99 struct simple_util_jack mic_jack;
100 struct platform_device *pdev;
101 struct codec_priv codec_priv;
102 struct cpu_priv cpu_priv;
103 struct snd_soc_card card;
104 u8 streams;
105 u32 sample_rate;
106 snd_pcm_format_t sample_format;
107 u32 asrc_rate;
108 snd_pcm_format_t asrc_format;
109 u32 dai_fmt;
110 char name[32];
111};
112
113/*
114 * This dapm route map exists for DPCM link only.
115 * The other routes shall go through Device Tree.
116 *
117 * Note: keep all ASRC routes in the second half
118 * to drop them easily for non-ASRC cases.
119 */
120static const struct snd_soc_dapm_route audio_map[] = {
121 /* 1st half -- Normal DAPM routes */
122 {"Playback", NULL, "CPU-Playback"},
123 {"CPU-Capture", NULL, "Capture"},
124 /* 2nd half -- ASRC DAPM routes */
125 {"CPU-Playback", NULL, "ASRC-Playback"},
126 {"ASRC-Capture", NULL, "CPU-Capture"},
127};
128
129static const struct snd_soc_dapm_route audio_map_ac97[] = {
130 /* 1st half -- Normal DAPM routes */
131 {"AC97 Playback", NULL, "CPU AC97 Playback"},
132 {"CPU AC97 Capture", NULL, "AC97 Capture"},
133 /* 2nd half -- ASRC DAPM routes */
134 {"CPU AC97 Playback", NULL, "ASRC-Playback"},
135 {"ASRC-Capture", NULL, "CPU AC97 Capture"},
136};
137
138static const struct snd_soc_dapm_route audio_map_tx[] = {
139 /* 1st half -- Normal DAPM routes */
140 {"Playback", NULL, "CPU-Playback"},
141 /* 2nd half -- ASRC DAPM routes */
142 {"CPU-Playback", NULL, "ASRC-Playback"},
143};
144
145static const struct snd_soc_dapm_route audio_map_rx[] = {
146 /* 1st half -- Normal DAPM routes */
147 {"CPU-Capture", NULL, "Capture"},
148 /* 2nd half -- ASRC DAPM routes */
149 {"ASRC-Capture", NULL, "CPU-Capture"},
150};
151
152/* Add all possible widgets into here without being redundant */
153static const struct snd_soc_dapm_widget fsl_asoc_card_dapm_widgets[] = {
154 SND_SOC_DAPM_LINE("Line Out Jack", NULL),
155 SND_SOC_DAPM_LINE("Line In Jack", NULL),
156 SND_SOC_DAPM_HP("Headphone Jack", NULL),
157 SND_SOC_DAPM_SPK("Ext Spk", NULL),
158 SND_SOC_DAPM_MIC("Mic Jack", NULL),
159 SND_SOC_DAPM_MIC("AMIC", NULL),
160 SND_SOC_DAPM_MIC("DMIC", NULL),
161};
162
163static bool fsl_asoc_card_is_ac97(struct fsl_asoc_card_priv *priv)
164{
165 return priv->dai_fmt == SND_SOC_DAIFMT_AC97;
166}
167
168static int fsl_asoc_card_hw_params(struct snd_pcm_substream *substream,
169 struct snd_pcm_hw_params *params)
170{
171 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
172 struct fsl_asoc_card_priv *priv = snd_soc_card_get_drvdata(card: rtd->card);
173 bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
174 struct codec_priv *codec_priv = &priv->codec_priv;
175 struct cpu_priv *cpu_priv = &priv->cpu_priv;
176 struct device *dev = rtd->card->dev;
177 unsigned int pll_out;
178 int ret;
179
180 priv->sample_rate = params_rate(p: params);
181 priv->sample_format = params_format(p: params);
182 priv->streams |= BIT(substream->stream);
183
184 if (fsl_asoc_card_is_ac97(priv))
185 return 0;
186
187 /* Specific configurations of DAIs starts from here */
188 ret = snd_soc_dai_set_sysclk(snd_soc_rtd_to_cpu(rtd, 0), clk_id: cpu_priv->sysclk_id[tx],
189 freq: cpu_priv->sysclk_freq[tx],
190 dir: cpu_priv->sysclk_dir[tx]);
191 if (ret && ret != -ENOTSUPP) {
192 dev_err(dev, "failed to set sysclk for cpu dai\n");
193 goto fail;
194 }
195
196 if (cpu_priv->slot_width) {
197 if (!cpu_priv->slot_num)
198 cpu_priv->slot_num = 2;
199
200 ret = snd_soc_dai_set_tdm_slot(snd_soc_rtd_to_cpu(rtd, 0), tx_mask: 0x3, rx_mask: 0x3,
201 slots: cpu_priv->slot_num,
202 slot_width: cpu_priv->slot_width);
203 if (ret && ret != -ENOTSUPP) {
204 dev_err(dev, "failed to set TDM slot for cpu dai\n");
205 goto fail;
206 }
207 }
208
209 /* Specific configuration for PLL */
210 if (codec_priv->pll_id >= 0 && codec_priv->fll_id >= 0) {
211 if (priv->sample_format == SNDRV_PCM_FORMAT_S24_LE)
212 pll_out = priv->sample_rate * 384;
213 else
214 pll_out = priv->sample_rate * 256;
215
216 ret = snd_soc_dai_set_pll(snd_soc_rtd_to_codec(rtd, 0),
217 pll_id: codec_priv->pll_id,
218 source: codec_priv->mclk_id,
219 freq_in: codec_priv->mclk_freq, freq_out: pll_out);
220 if (ret) {
221 dev_err(dev, "failed to start FLL: %d\n", ret);
222 goto fail;
223 }
224
225 ret = snd_soc_dai_set_sysclk(snd_soc_rtd_to_codec(rtd, 0),
226 clk_id: codec_priv->fll_id,
227 freq: pll_out, SND_SOC_CLOCK_IN);
228
229 if (ret && ret != -ENOTSUPP) {
230 dev_err(dev, "failed to set SYSCLK: %d\n", ret);
231 goto fail;
232 }
233 }
234
235 return 0;
236
237fail:
238 priv->streams &= ~BIT(substream->stream);
239 return ret;
240}
241
242static int fsl_asoc_card_hw_free(struct snd_pcm_substream *substream)
243{
244 struct snd_soc_pcm_runtime *rtd = substream->private_data;
245 struct fsl_asoc_card_priv *priv = snd_soc_card_get_drvdata(card: rtd->card);
246 struct codec_priv *codec_priv = &priv->codec_priv;
247 struct device *dev = rtd->card->dev;
248 int ret;
249
250 priv->streams &= ~BIT(substream->stream);
251
252 if (!priv->streams && codec_priv->pll_id >= 0 && codec_priv->fll_id >= 0) {
253 /* Force freq to be free_freq to avoid error message in codec */
254 ret = snd_soc_dai_set_sysclk(snd_soc_rtd_to_codec(rtd, 0),
255 clk_id: codec_priv->mclk_id,
256 freq: codec_priv->free_freq,
257 SND_SOC_CLOCK_IN);
258 if (ret) {
259 dev_err(dev, "failed to switch away from FLL: %d\n", ret);
260 return ret;
261 }
262
263 ret = snd_soc_dai_set_pll(snd_soc_rtd_to_codec(rtd, 0),
264 pll_id: codec_priv->pll_id, source: 0, freq_in: 0, freq_out: 0);
265 if (ret && ret != -ENOTSUPP) {
266 dev_err(dev, "failed to stop FLL: %d\n", ret);
267 return ret;
268 }
269 }
270
271 return 0;
272}
273
274static const struct snd_soc_ops fsl_asoc_card_ops = {
275 .hw_params = fsl_asoc_card_hw_params,
276 .hw_free = fsl_asoc_card_hw_free,
277};
278
279static int be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
280 struct snd_pcm_hw_params *params)
281{
282 struct fsl_asoc_card_priv *priv = snd_soc_card_get_drvdata(card: rtd->card);
283 struct snd_interval *rate;
284 struct snd_mask *mask;
285
286 rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
287 rate->max = rate->min = priv->asrc_rate;
288
289 mask = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
290 snd_mask_none(mask);
291 snd_mask_set_format(mask, format: priv->asrc_format);
292
293 return 0;
294}
295
296SND_SOC_DAILINK_DEFS(hifi,
297 DAILINK_COMP_ARRAY(COMP_EMPTY()),
298 DAILINK_COMP_ARRAY(COMP_EMPTY()),
299 DAILINK_COMP_ARRAY(COMP_EMPTY()));
300
301SND_SOC_DAILINK_DEFS(hifi_fe,
302 DAILINK_COMP_ARRAY(COMP_EMPTY()),
303 DAILINK_COMP_ARRAY(COMP_DUMMY()),
304 DAILINK_COMP_ARRAY(COMP_EMPTY()));
305
306SND_SOC_DAILINK_DEFS(hifi_be,
307 DAILINK_COMP_ARRAY(COMP_EMPTY()),
308 DAILINK_COMP_ARRAY(COMP_EMPTY()));
309
310static const struct snd_soc_dai_link fsl_asoc_card_dai[] = {
311 /* Default ASoC DAI Link*/
312 {
313 .name = "HiFi",
314 .stream_name = "HiFi",
315 .ops = &fsl_asoc_card_ops,
316 SND_SOC_DAILINK_REG(hifi),
317 },
318 /* DPCM Link between Front-End and Back-End (Optional) */
319 {
320 .name = "HiFi-ASRC-FE",
321 .stream_name = "HiFi-ASRC-FE",
322 .dpcm_playback = 1,
323 .dpcm_capture = 1,
324 .dynamic = 1,
325 SND_SOC_DAILINK_REG(hifi_fe),
326 },
327 {
328 .name = "HiFi-ASRC-BE",
329 .stream_name = "HiFi-ASRC-BE",
330 .be_hw_params_fixup = be_hw_params_fixup,
331 .ops = &fsl_asoc_card_ops,
332 .dpcm_playback = 1,
333 .dpcm_capture = 1,
334 .no_pcm = 1,
335 SND_SOC_DAILINK_REG(hifi_be),
336 },
337};
338
339static int fsl_asoc_card_audmux_init(struct device_node *np,
340 struct fsl_asoc_card_priv *priv)
341{
342 struct device *dev = &priv->pdev->dev;
343 u32 int_ptcr = 0, ext_ptcr = 0;
344 int int_port, ext_port;
345 int ret;
346
347 ret = of_property_read_u32(np, propname: "mux-int-port", out_value: &int_port);
348 if (ret) {
349 dev_err(dev, "mux-int-port missing or invalid\n");
350 return ret;
351 }
352 ret = of_property_read_u32(np, propname: "mux-ext-port", out_value: &ext_port);
353 if (ret) {
354 dev_err(dev, "mux-ext-port missing or invalid\n");
355 return ret;
356 }
357
358 /*
359 * The port numbering in the hardware manual starts at 1, while
360 * the AUDMUX API expects it starts at 0.
361 */
362 int_port--;
363 ext_port--;
364
365 /*
366 * Use asynchronous mode (6 wires) for all cases except AC97.
367 * If only 4 wires are needed, just set SSI into
368 * synchronous mode and enable 4 PADs in IOMUX.
369 */
370 switch (priv->dai_fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
371 case SND_SOC_DAIFMT_CBP_CFP:
372 int_ptcr = IMX_AUDMUX_V2_PTCR_RFSEL(8 | ext_port) |
373 IMX_AUDMUX_V2_PTCR_RCSEL(8 | ext_port) |
374 IMX_AUDMUX_V2_PTCR_TFSEL(ext_port) |
375 IMX_AUDMUX_V2_PTCR_TCSEL(ext_port) |
376 IMX_AUDMUX_V2_PTCR_RFSDIR |
377 IMX_AUDMUX_V2_PTCR_RCLKDIR |
378 IMX_AUDMUX_V2_PTCR_TFSDIR |
379 IMX_AUDMUX_V2_PTCR_TCLKDIR;
380 break;
381 case SND_SOC_DAIFMT_CBP_CFC:
382 int_ptcr = IMX_AUDMUX_V2_PTCR_RCSEL(8 | ext_port) |
383 IMX_AUDMUX_V2_PTCR_TCSEL(ext_port) |
384 IMX_AUDMUX_V2_PTCR_RCLKDIR |
385 IMX_AUDMUX_V2_PTCR_TCLKDIR;
386 ext_ptcr = IMX_AUDMUX_V2_PTCR_RFSEL(8 | int_port) |
387 IMX_AUDMUX_V2_PTCR_TFSEL(int_port) |
388 IMX_AUDMUX_V2_PTCR_RFSDIR |
389 IMX_AUDMUX_V2_PTCR_TFSDIR;
390 break;
391 case SND_SOC_DAIFMT_CBC_CFP:
392 int_ptcr = IMX_AUDMUX_V2_PTCR_RFSEL(8 | ext_port) |
393 IMX_AUDMUX_V2_PTCR_TFSEL(ext_port) |
394 IMX_AUDMUX_V2_PTCR_RFSDIR |
395 IMX_AUDMUX_V2_PTCR_TFSDIR;
396 ext_ptcr = IMX_AUDMUX_V2_PTCR_RCSEL(8 | int_port) |
397 IMX_AUDMUX_V2_PTCR_TCSEL(int_port) |
398 IMX_AUDMUX_V2_PTCR_RCLKDIR |
399 IMX_AUDMUX_V2_PTCR_TCLKDIR;
400 break;
401 case SND_SOC_DAIFMT_CBC_CFC:
402 ext_ptcr = IMX_AUDMUX_V2_PTCR_RFSEL(8 | int_port) |
403 IMX_AUDMUX_V2_PTCR_RCSEL(8 | int_port) |
404 IMX_AUDMUX_V2_PTCR_TFSEL(int_port) |
405 IMX_AUDMUX_V2_PTCR_TCSEL(int_port) |
406 IMX_AUDMUX_V2_PTCR_RFSDIR |
407 IMX_AUDMUX_V2_PTCR_RCLKDIR |
408 IMX_AUDMUX_V2_PTCR_TFSDIR |
409 IMX_AUDMUX_V2_PTCR_TCLKDIR;
410 break;
411 default:
412 if (!fsl_asoc_card_is_ac97(priv))
413 return -EINVAL;
414 }
415
416 if (fsl_asoc_card_is_ac97(priv)) {
417 int_ptcr = IMX_AUDMUX_V2_PTCR_SYN |
418 IMX_AUDMUX_V2_PTCR_TCSEL(ext_port) |
419 IMX_AUDMUX_V2_PTCR_TCLKDIR;
420 ext_ptcr = IMX_AUDMUX_V2_PTCR_SYN |
421 IMX_AUDMUX_V2_PTCR_TFSEL(int_port) |
422 IMX_AUDMUX_V2_PTCR_TFSDIR;
423 }
424
425 /* Asynchronous mode can not be set along with RCLKDIR */
426 if (!fsl_asoc_card_is_ac97(priv)) {
427 unsigned int pdcr =
428 IMX_AUDMUX_V2_PDCR_RXDSEL(ext_port);
429
430 ret = imx_audmux_v2_configure_port(port: int_port, ptcr: 0,
431 pdcr);
432 if (ret) {
433 dev_err(dev, "audmux internal port setup failed\n");
434 return ret;
435 }
436 }
437
438 ret = imx_audmux_v2_configure_port(port: int_port, ptcr: int_ptcr,
439 IMX_AUDMUX_V2_PDCR_RXDSEL(ext_port));
440 if (ret) {
441 dev_err(dev, "audmux internal port setup failed\n");
442 return ret;
443 }
444
445 if (!fsl_asoc_card_is_ac97(priv)) {
446 unsigned int pdcr =
447 IMX_AUDMUX_V2_PDCR_RXDSEL(int_port);
448
449 ret = imx_audmux_v2_configure_port(port: ext_port, ptcr: 0,
450 pdcr);
451 if (ret) {
452 dev_err(dev, "audmux external port setup failed\n");
453 return ret;
454 }
455 }
456
457 ret = imx_audmux_v2_configure_port(port: ext_port, ptcr: ext_ptcr,
458 IMX_AUDMUX_V2_PDCR_RXDSEL(int_port));
459 if (ret) {
460 dev_err(dev, "audmux external port setup failed\n");
461 return ret;
462 }
463
464 return 0;
465}
466
467static int hp_jack_event(struct notifier_block *nb, unsigned long event,
468 void *data)
469{
470 struct snd_soc_jack *jack = (struct snd_soc_jack *)data;
471 struct snd_soc_dapm_context *dapm = &jack->card->dapm;
472
473 if (event & SND_JACK_HEADPHONE)
474 /* Disable speaker if headphone is plugged in */
475 return snd_soc_dapm_disable_pin(dapm, pin: "Ext Spk");
476 else
477 return snd_soc_dapm_enable_pin(dapm, pin: "Ext Spk");
478}
479
480static struct notifier_block hp_jack_nb = {
481 .notifier_call = hp_jack_event,
482};
483
484static int mic_jack_event(struct notifier_block *nb, unsigned long event,
485 void *data)
486{
487 struct snd_soc_jack *jack = (struct snd_soc_jack *)data;
488 struct snd_soc_dapm_context *dapm = &jack->card->dapm;
489
490 if (event & SND_JACK_MICROPHONE)
491 /* Disable dmic if microphone is plugged in */
492 return snd_soc_dapm_disable_pin(dapm, pin: "DMIC");
493 else
494 return snd_soc_dapm_enable_pin(dapm, pin: "DMIC");
495}
496
497static struct notifier_block mic_jack_nb = {
498 .notifier_call = mic_jack_event,
499};
500
501static int fsl_asoc_card_late_probe(struct snd_soc_card *card)
502{
503 struct fsl_asoc_card_priv *priv = snd_soc_card_get_drvdata(card);
504 struct snd_soc_pcm_runtime *rtd = list_first_entry(
505 &card->rtd_list, struct snd_soc_pcm_runtime, list);
506 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);
507 struct codec_priv *codec_priv = &priv->codec_priv;
508 struct device *dev = card->dev;
509 int ret;
510
511 if (fsl_asoc_card_is_ac97(priv)) {
512#if IS_ENABLED(CONFIG_SND_AC97_CODEC)
513 struct snd_soc_component *component = snd_soc_rtd_to_codec(rtd, 0)->component;
514 struct snd_ac97 *ac97 = snd_soc_component_get_drvdata(c: component);
515
516 /*
517 * Use slots 3/4 for S/PDIF so SSI won't try to enable
518 * other slots and send some samples there
519 * due to SLOTREQ bits for S/PDIF received from codec
520 */
521 snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS,
522 AC97_EA_SPSA_SLOT_MASK, AC97_EA_SPSA_3_4);
523#endif
524
525 return 0;
526 }
527
528 ret = snd_soc_dai_set_sysclk(dai: codec_dai, clk_id: codec_priv->mclk_id,
529 freq: codec_priv->mclk_freq, SND_SOC_CLOCK_IN);
530 if (ret && ret != -ENOTSUPP) {
531 dev_err(dev, "failed to set sysclk in %s\n", __func__);
532 return ret;
533 }
534
535 if (!IS_ERR_OR_NULL(ptr: codec_priv->mclk))
536 clk_prepare_enable(clk: codec_priv->mclk);
537
538 return 0;
539}
540
541static int fsl_asoc_card_probe(struct platform_device *pdev)
542{
543 struct device_node *cpu_np, *codec_np, *asrc_np;
544 struct device_node *np = pdev->dev.of_node;
545 struct platform_device *asrc_pdev = NULL;
546 struct device_node *bitclkprovider = NULL;
547 struct device_node *frameprovider = NULL;
548 struct platform_device *cpu_pdev;
549 struct fsl_asoc_card_priv *priv;
550 struct device *codec_dev = NULL;
551 const char *codec_dai_name;
552 const char *codec_dev_name;
553 u32 asrc_fmt = 0;
554 u32 width;
555 int ret;
556
557 priv = devm_kzalloc(dev: &pdev->dev, size: sizeof(*priv), GFP_KERNEL);
558 if (!priv)
559 return -ENOMEM;
560
561 cpu_np = of_parse_phandle(np, phandle_name: "audio-cpu", index: 0);
562 /* Give a chance to old DT binding */
563 if (!cpu_np)
564 cpu_np = of_parse_phandle(np, phandle_name: "ssi-controller", index: 0);
565 if (!cpu_np) {
566 dev_err(&pdev->dev, "CPU phandle missing or invalid\n");
567 ret = -EINVAL;
568 goto fail;
569 }
570
571 cpu_pdev = of_find_device_by_node(np: cpu_np);
572 if (!cpu_pdev) {
573 dev_err(&pdev->dev, "failed to find CPU DAI device\n");
574 ret = -EINVAL;
575 goto fail;
576 }
577
578 codec_np = of_parse_phandle(np, phandle_name: "audio-codec", index: 0);
579 if (codec_np) {
580 struct platform_device *codec_pdev;
581 struct i2c_client *codec_i2c;
582
583 codec_i2c = of_find_i2c_device_by_node(node: codec_np);
584 if (codec_i2c) {
585 codec_dev = &codec_i2c->dev;
586 codec_dev_name = codec_i2c->name;
587 }
588 if (!codec_dev) {
589 codec_pdev = of_find_device_by_node(np: codec_np);
590 if (codec_pdev) {
591 codec_dev = &codec_pdev->dev;
592 codec_dev_name = codec_pdev->name;
593 }
594 }
595 }
596
597 asrc_np = of_parse_phandle(np, phandle_name: "audio-asrc", index: 0);
598 if (asrc_np)
599 asrc_pdev = of_find_device_by_node(np: asrc_np);
600
601 /* Get the MCLK rate only, and leave it controlled by CODEC drivers */
602 if (codec_dev) {
603 struct clk *codec_clk = clk_get(dev: codec_dev, NULL);
604
605 if (!IS_ERR(ptr: codec_clk)) {
606 priv->codec_priv.mclk_freq = clk_get_rate(clk: codec_clk);
607 clk_put(clk: codec_clk);
608 }
609 }
610
611 /* Default sample rate and format, will be updated in hw_params() */
612 priv->sample_rate = 44100;
613 priv->sample_format = SNDRV_PCM_FORMAT_S16_LE;
614
615 /* Assign a default DAI format, and allow each card to overwrite it */
616 priv->dai_fmt = DAI_FMT_BASE;
617
618 memcpy(priv->dai_link, fsl_asoc_card_dai,
619 sizeof(struct snd_soc_dai_link) * ARRAY_SIZE(priv->dai_link));
620
621 priv->card.dapm_routes = audio_map;
622 priv->card.num_dapm_routes = ARRAY_SIZE(audio_map);
623 priv->card.driver_name = DRIVER_NAME;
624
625 priv->codec_priv.fll_id = -1;
626 priv->codec_priv.pll_id = -1;
627
628 /* Diversify the card configurations */
629 if (of_device_is_compatible(device: np, "fsl,imx-audio-cs42888")) {
630 codec_dai_name = "cs42888";
631 priv->cpu_priv.sysclk_freq[TX] = priv->codec_priv.mclk_freq;
632 priv->cpu_priv.sysclk_freq[RX] = priv->codec_priv.mclk_freq;
633 priv->cpu_priv.sysclk_dir[TX] = SND_SOC_CLOCK_OUT;
634 priv->cpu_priv.sysclk_dir[RX] = SND_SOC_CLOCK_OUT;
635 priv->cpu_priv.slot_width = 32;
636 priv->dai_fmt |= SND_SOC_DAIFMT_CBC_CFC;
637 } else if (of_device_is_compatible(device: np, "fsl,imx-audio-cs427x")) {
638 codec_dai_name = "cs4271-hifi";
639 priv->codec_priv.mclk_id = CS427x_SYSCLK_MCLK;
640 priv->dai_fmt |= SND_SOC_DAIFMT_CBP_CFP;
641 } else if (of_device_is_compatible(device: np, "fsl,imx-audio-sgtl5000")) {
642 codec_dai_name = "sgtl5000";
643 priv->codec_priv.mclk_id = SGTL5000_SYSCLK;
644 priv->dai_fmt |= SND_SOC_DAIFMT_CBP_CFP;
645 } else if (of_device_is_compatible(device: np, "fsl,imx-audio-tlv320aic32x4")) {
646 codec_dai_name = "tlv320aic32x4-hifi";
647 priv->dai_fmt |= SND_SOC_DAIFMT_CBP_CFP;
648 } else if (of_device_is_compatible(device: np, "fsl,imx-audio-tlv320aic31xx")) {
649 codec_dai_name = "tlv320dac31xx-hifi";
650 priv->dai_fmt |= SND_SOC_DAIFMT_CBS_CFS;
651 priv->dai_link[1].dpcm_capture = 0;
652 priv->dai_link[2].dpcm_capture = 0;
653 priv->cpu_priv.sysclk_dir[TX] = SND_SOC_CLOCK_OUT;
654 priv->cpu_priv.sysclk_dir[RX] = SND_SOC_CLOCK_OUT;
655 priv->card.dapm_routes = audio_map_tx;
656 priv->card.num_dapm_routes = ARRAY_SIZE(audio_map_tx);
657 } else if (of_device_is_compatible(device: np, "fsl,imx-audio-wm8962")) {
658 codec_dai_name = "wm8962";
659 priv->codec_priv.mclk_id = WM8962_SYSCLK_MCLK;
660 priv->codec_priv.fll_id = WM8962_SYSCLK_FLL;
661 priv->codec_priv.pll_id = WM8962_FLL;
662 priv->dai_fmt |= SND_SOC_DAIFMT_CBP_CFP;
663 } else if (of_device_is_compatible(device: np, "fsl,imx-audio-wm8960")) {
664 codec_dai_name = "wm8960-hifi";
665 priv->codec_priv.fll_id = WM8960_SYSCLK_AUTO;
666 priv->codec_priv.pll_id = WM8960_SYSCLK_AUTO;
667 priv->dai_fmt |= SND_SOC_DAIFMT_CBP_CFP;
668 } else if (of_device_is_compatible(device: np, "fsl,imx-audio-ac97")) {
669 codec_dai_name = "ac97-hifi";
670 priv->dai_fmt = SND_SOC_DAIFMT_AC97;
671 priv->card.dapm_routes = audio_map_ac97;
672 priv->card.num_dapm_routes = ARRAY_SIZE(audio_map_ac97);
673 } else if (of_device_is_compatible(device: np, "fsl,imx-audio-mqs")) {
674 codec_dai_name = "fsl-mqs-dai";
675 priv->dai_fmt = SND_SOC_DAIFMT_LEFT_J |
676 SND_SOC_DAIFMT_CBC_CFC |
677 SND_SOC_DAIFMT_NB_NF;
678 priv->dai_link[1].dpcm_capture = 0;
679 priv->dai_link[2].dpcm_capture = 0;
680 priv->card.dapm_routes = audio_map_tx;
681 priv->card.num_dapm_routes = ARRAY_SIZE(audio_map_tx);
682 } else if (of_device_is_compatible(device: np, "fsl,imx-audio-wm8524")) {
683 codec_dai_name = "wm8524-hifi";
684 priv->dai_fmt |= SND_SOC_DAIFMT_CBC_CFC;
685 priv->dai_link[1].dpcm_capture = 0;
686 priv->dai_link[2].dpcm_capture = 0;
687 priv->cpu_priv.slot_width = 32;
688 priv->card.dapm_routes = audio_map_tx;
689 priv->card.num_dapm_routes = ARRAY_SIZE(audio_map_tx);
690 } else if (of_device_is_compatible(device: np, "fsl,imx-audio-si476x")) {
691 codec_dai_name = "si476x-codec";
692 priv->dai_fmt |= SND_SOC_DAIFMT_CBC_CFC;
693 priv->card.dapm_routes = audio_map_rx;
694 priv->card.num_dapm_routes = ARRAY_SIZE(audio_map_rx);
695 } else if (of_device_is_compatible(device: np, "fsl,imx-audio-wm8958")) {
696 codec_dai_name = "wm8994-aif1";
697 priv->dai_fmt |= SND_SOC_DAIFMT_CBP_CFP;
698 priv->codec_priv.mclk_id = WM8994_FLL_SRC_MCLK1;
699 priv->codec_priv.fll_id = WM8994_SYSCLK_FLL1;
700 priv->codec_priv.pll_id = WM8994_FLL1;
701 priv->codec_priv.free_freq = priv->codec_priv.mclk_freq;
702 priv->card.dapm_routes = NULL;
703 priv->card.num_dapm_routes = 0;
704 } else if (of_device_is_compatible(device: np, "fsl,imx-audio-nau8822")) {
705 codec_dai_name = "nau8822-hifi";
706 priv->codec_priv.mclk_id = NAU8822_CLK_MCLK;
707 priv->codec_priv.fll_id = NAU8822_CLK_PLL;
708 priv->codec_priv.pll_id = NAU8822_CLK_PLL;
709 priv->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
710 if (codec_dev)
711 priv->codec_priv.mclk = devm_clk_get(dev: codec_dev, NULL);
712 } else {
713 dev_err(&pdev->dev, "unknown Device Tree compatible\n");
714 ret = -EINVAL;
715 goto asrc_fail;
716 }
717
718 /*
719 * Allow setting mclk-id from the device-tree node. Otherwise, the
720 * default value for each card configuration is used.
721 */
722 of_property_read_u32(np, propname: "mclk-id", out_value: &priv->codec_priv.mclk_id);
723
724 /* Format info from DT is optional. */
725 snd_soc_daifmt_parse_clock_provider_as_phandle(np, NULL, bitclkmaster: &bitclkprovider, framemaster: &frameprovider);
726 if (bitclkprovider || frameprovider) {
727 unsigned int daifmt = snd_soc_daifmt_parse_format(np, NULL);
728
729 if (codec_np == bitclkprovider)
730 daifmt |= (codec_np == frameprovider) ?
731 SND_SOC_DAIFMT_CBP_CFP : SND_SOC_DAIFMT_CBP_CFC;
732 else
733 daifmt |= (codec_np == frameprovider) ?
734 SND_SOC_DAIFMT_CBC_CFP : SND_SOC_DAIFMT_CBC_CFC;
735
736 /* Override dai_fmt with value from DT */
737 priv->dai_fmt = daifmt;
738 }
739
740 /* Change direction according to format */
741 if (priv->dai_fmt & SND_SOC_DAIFMT_CBP_CFP) {
742 priv->cpu_priv.sysclk_dir[TX] = SND_SOC_CLOCK_IN;
743 priv->cpu_priv.sysclk_dir[RX] = SND_SOC_CLOCK_IN;
744 }
745
746 of_node_put(node: bitclkprovider);
747 of_node_put(node: frameprovider);
748
749 if (!fsl_asoc_card_is_ac97(priv) && !codec_dev) {
750 dev_dbg(&pdev->dev, "failed to find codec device\n");
751 ret = -EPROBE_DEFER;
752 goto asrc_fail;
753 }
754
755 /* Common settings for corresponding Freescale CPU DAI driver */
756 if (of_node_name_eq(np: cpu_np, name: "ssi")) {
757 /* Only SSI needs to configure AUDMUX */
758 ret = fsl_asoc_card_audmux_init(np, priv);
759 if (ret) {
760 dev_err(&pdev->dev, "failed to init audmux\n");
761 goto asrc_fail;
762 }
763 } else if (of_node_name_eq(np: cpu_np, name: "esai")) {
764 struct clk *esai_clk = clk_get(dev: &cpu_pdev->dev, id: "extal");
765
766 if (!IS_ERR(ptr: esai_clk)) {
767 priv->cpu_priv.sysclk_freq[TX] = clk_get_rate(clk: esai_clk);
768 priv->cpu_priv.sysclk_freq[RX] = clk_get_rate(clk: esai_clk);
769 clk_put(clk: esai_clk);
770 } else if (PTR_ERR(ptr: esai_clk) == -EPROBE_DEFER) {
771 ret = -EPROBE_DEFER;
772 goto asrc_fail;
773 }
774
775 priv->cpu_priv.sysclk_id[1] = ESAI_HCKT_EXTAL;
776 priv->cpu_priv.sysclk_id[0] = ESAI_HCKR_EXTAL;
777 } else if (of_node_name_eq(np: cpu_np, name: "sai")) {
778 priv->cpu_priv.sysclk_id[1] = FSL_SAI_CLK_MAST1;
779 priv->cpu_priv.sysclk_id[0] = FSL_SAI_CLK_MAST1;
780 }
781
782 /* Initialize sound card */
783 priv->pdev = pdev;
784 priv->card.dev = &pdev->dev;
785 priv->card.owner = THIS_MODULE;
786 ret = snd_soc_of_parse_card_name(card: &priv->card, propname: "model");
787 if (ret) {
788 snprintf(buf: priv->name, size: sizeof(priv->name), fmt: "%s-audio",
789 fsl_asoc_card_is_ac97(priv) ? "ac97" : codec_dev_name);
790 priv->card.name = priv->name;
791 }
792 priv->card.dai_link = priv->dai_link;
793 priv->card.late_probe = fsl_asoc_card_late_probe;
794 priv->card.dapm_widgets = fsl_asoc_card_dapm_widgets;
795 priv->card.num_dapm_widgets = ARRAY_SIZE(fsl_asoc_card_dapm_widgets);
796
797 /* Drop the second half of DAPM routes -- ASRC */
798 if (!asrc_pdev)
799 priv->card.num_dapm_routes /= 2;
800
801 if (of_property_read_bool(np, propname: "audio-routing")) {
802 ret = snd_soc_of_parse_audio_routing(card: &priv->card, propname: "audio-routing");
803 if (ret) {
804 dev_err(&pdev->dev, "failed to parse audio-routing: %d\n", ret);
805 goto asrc_fail;
806 }
807 }
808
809 /* Normal DAI Link */
810 priv->dai_link[0].cpus->of_node = cpu_np;
811 priv->dai_link[0].codecs->dai_name = codec_dai_name;
812
813 if (!fsl_asoc_card_is_ac97(priv))
814 priv->dai_link[0].codecs->of_node = codec_np;
815 else {
816 u32 idx;
817
818 ret = of_property_read_u32(np: cpu_np, propname: "cell-index", out_value: &idx);
819 if (ret) {
820 dev_err(&pdev->dev,
821 "cannot get CPU index property\n");
822 goto asrc_fail;
823 }
824
825 priv->dai_link[0].codecs->name =
826 devm_kasprintf(dev: &pdev->dev, GFP_KERNEL,
827 fmt: "ac97-codec.%u",
828 (unsigned int)idx);
829 if (!priv->dai_link[0].codecs->name) {
830 ret = -ENOMEM;
831 goto asrc_fail;
832 }
833 }
834
835 priv->dai_link[0].platforms->of_node = cpu_np;
836 priv->dai_link[0].dai_fmt = priv->dai_fmt;
837 priv->card.num_links = 1;
838
839 if (asrc_pdev) {
840 /* DPCM DAI Links only if ASRC exists */
841 priv->dai_link[1].cpus->of_node = asrc_np;
842 priv->dai_link[1].platforms->of_node = asrc_np;
843 priv->dai_link[2].codecs->dai_name = codec_dai_name;
844 priv->dai_link[2].codecs->of_node = codec_np;
845 priv->dai_link[2].codecs->name =
846 priv->dai_link[0].codecs->name;
847 priv->dai_link[2].cpus->of_node = cpu_np;
848 priv->dai_link[2].dai_fmt = priv->dai_fmt;
849 priv->card.num_links = 3;
850
851 ret = of_property_read_u32(np: asrc_np, propname: "fsl,asrc-rate",
852 out_value: &priv->asrc_rate);
853 if (ret) {
854 dev_err(&pdev->dev, "failed to get output rate\n");
855 ret = -EINVAL;
856 goto asrc_fail;
857 }
858
859 ret = of_property_read_u32(np: asrc_np, propname: "fsl,asrc-format", out_value: &asrc_fmt);
860 priv->asrc_format = (__force snd_pcm_format_t)asrc_fmt;
861 if (ret) {
862 /* Fallback to old binding; translate to asrc_format */
863 ret = of_property_read_u32(np: asrc_np, propname: "fsl,asrc-width",
864 out_value: &width);
865 if (ret) {
866 dev_err(&pdev->dev,
867 "failed to decide output format\n");
868 goto asrc_fail;
869 }
870
871 if (width == 24)
872 priv->asrc_format = SNDRV_PCM_FORMAT_S24_LE;
873 else
874 priv->asrc_format = SNDRV_PCM_FORMAT_S16_LE;
875 }
876 }
877
878 /* Finish card registering */
879 platform_set_drvdata(pdev, data: priv);
880 snd_soc_card_set_drvdata(card: &priv->card, data: priv);
881
882 ret = devm_snd_soc_register_card(dev: &pdev->dev, card: &priv->card);
883 if (ret) {
884 dev_err_probe(dev: &pdev->dev, err: ret, fmt: "snd_soc_register_card failed\n");
885 goto asrc_fail;
886 }
887
888 /*
889 * Properties "hp-det-gpio" and "mic-det-gpio" are optional, and
890 * simple_util_init_jack() uses these properties for creating
891 * Headphone Jack and Microphone Jack.
892 *
893 * The notifier is initialized in snd_soc_card_jack_new(), then
894 * snd_soc_jack_notifier_register can be called.
895 */
896 if (of_property_read_bool(np, propname: "hp-det-gpio")) {
897 ret = simple_util_init_jack(card: &priv->card, sjack: &priv->hp_jack,
898 is_hp: 1, NULL, pin: "Headphone Jack");
899 if (ret)
900 goto asrc_fail;
901
902 snd_soc_jack_notifier_register(jack: &priv->hp_jack.jack, nb: &hp_jack_nb);
903 }
904
905 if (of_property_read_bool(np, propname: "mic-det-gpio")) {
906 ret = simple_util_init_jack(card: &priv->card, sjack: &priv->mic_jack,
907 is_hp: 0, NULL, pin: "Mic Jack");
908 if (ret)
909 goto asrc_fail;
910
911 snd_soc_jack_notifier_register(jack: &priv->mic_jack.jack, nb: &mic_jack_nb);
912 }
913
914asrc_fail:
915 of_node_put(node: asrc_np);
916 of_node_put(node: codec_np);
917 put_device(dev: &cpu_pdev->dev);
918fail:
919 of_node_put(node: cpu_np);
920
921 return ret;
922}
923
924static const struct of_device_id fsl_asoc_card_dt_ids[] = {
925 { .compatible = "fsl,imx-audio-ac97", },
926 { .compatible = "fsl,imx-audio-cs42888", },
927 { .compatible = "fsl,imx-audio-cs427x", },
928 { .compatible = "fsl,imx-audio-tlv320aic32x4", },
929 { .compatible = "fsl,imx-audio-tlv320aic31xx", },
930 { .compatible = "fsl,imx-audio-sgtl5000", },
931 { .compatible = "fsl,imx-audio-wm8962", },
932 { .compatible = "fsl,imx-audio-wm8960", },
933 { .compatible = "fsl,imx-audio-mqs", },
934 { .compatible = "fsl,imx-audio-wm8524", },
935 { .compatible = "fsl,imx-audio-si476x", },
936 { .compatible = "fsl,imx-audio-wm8958", },
937 { .compatible = "fsl,imx-audio-nau8822", },
938 {}
939};
940MODULE_DEVICE_TABLE(of, fsl_asoc_card_dt_ids);
941
942static struct platform_driver fsl_asoc_card_driver = {
943 .probe = fsl_asoc_card_probe,
944 .driver = {
945 .name = DRIVER_NAME,
946 .pm = &snd_soc_pm_ops,
947 .of_match_table = fsl_asoc_card_dt_ids,
948 },
949};
950module_platform_driver(fsl_asoc_card_driver);
951
952MODULE_DESCRIPTION("Freescale Generic ASoC Sound Card driver with ASRC");
953MODULE_AUTHOR("Nicolin Chen <nicoleotsuka@gmail.com>");
954MODULE_ALIAS("platform:" DRIVER_NAME);
955MODULE_LICENSE("GPL");
956

source code of linux/sound/soc/fsl/fsl-asoc-card.c