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[mirror_ubuntu-bionic-kernel.git] / sound / soc / codecs / hdac_hdmi.c
1 /*
2 * hdac_hdmi.c - ASoc HDA-HDMI codec driver for Intel platforms
3 *
4 * Copyright (C) 2014-2015 Intel Corp
5 * Author: Samreen Nilofer <samreen.nilofer@intel.com>
6 * Subhransu S. Prusty <subhransu.s.prusty@intel.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 as published by
11 * the Free Software Foundation; version 2 of the License.
12 *
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
17 *
18 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
19 */
20 #include <linux/init.h>
21 #include <linux/delay.h>
22 #include <linux/module.h>
23 #include <linux/pm_runtime.h>
24 #include <linux/hdmi.h>
25 #include <drm/drm_edid.h>
26 #include <sound/pcm_params.h>
27 #include <sound/jack.h>
28 #include <sound/soc.h>
29 #include <sound/hdaudio_ext.h>
30 #include <sound/hda_i915.h>
31 #include <sound/pcm_drm_eld.h>
32 #include <sound/hda_chmap.h>
33 #include "../../hda/local.h"
34 #include "hdac_hdmi.h"
35
36 #define NAME_SIZE 32
37
38 #define AMP_OUT_MUTE 0xb080
39 #define AMP_OUT_UNMUTE 0xb000
40 #define PIN_OUT (AC_PINCTL_OUT_EN)
41
42 #define HDA_MAX_CONNECTIONS 32
43
44 #define HDA_MAX_CVTS 3
45 #define HDA_MAX_PORTS 3
46
47 #define ELD_MAX_SIZE 256
48 #define ELD_FIXED_BYTES 20
49
50 #define ELD_VER_CEA_861D 2
51 #define ELD_VER_PARTIAL 31
52 #define ELD_MAX_MNL 16
53
54 struct hdac_hdmi_cvt_params {
55 unsigned int channels_min;
56 unsigned int channels_max;
57 u32 rates;
58 u64 formats;
59 unsigned int maxbps;
60 };
61
62 struct hdac_hdmi_cvt {
63 struct list_head head;
64 hda_nid_t nid;
65 const char *name;
66 struct hdac_hdmi_cvt_params params;
67 };
68
69 /* Currently only spk_alloc, more to be added */
70 struct hdac_hdmi_parsed_eld {
71 u8 spk_alloc;
72 };
73
74 struct hdac_hdmi_eld {
75 bool monitor_present;
76 bool eld_valid;
77 int eld_size;
78 char eld_buffer[ELD_MAX_SIZE];
79 struct hdac_hdmi_parsed_eld info;
80 };
81
82 struct hdac_hdmi_pin {
83 struct list_head head;
84 hda_nid_t nid;
85 bool mst_capable;
86 struct hdac_hdmi_port *ports;
87 int num_ports;
88 struct hdac_ext_device *edev;
89 };
90
91 struct hdac_hdmi_port {
92 struct list_head head;
93 int id;
94 struct hdac_hdmi_pin *pin;
95 int num_mux_nids;
96 hda_nid_t mux_nids[HDA_MAX_CONNECTIONS];
97 struct hdac_hdmi_eld eld;
98 const char *jack_pin;
99 struct snd_soc_dapm_context *dapm;
100 const char *output_pin;
101 };
102
103 struct hdac_hdmi_pcm {
104 struct list_head head;
105 int pcm_id;
106 struct list_head port_list;
107 struct hdac_hdmi_cvt *cvt;
108 struct snd_soc_jack *jack;
109 int stream_tag;
110 int channels;
111 int format;
112 bool chmap_set;
113 unsigned char chmap[8]; /* ALSA API channel-map */
114 struct mutex lock;
115 int jack_event;
116 };
117
118 struct hdac_hdmi_dai_port_map {
119 int dai_id;
120 struct hdac_hdmi_port *port;
121 struct hdac_hdmi_cvt *cvt;
122 };
123
124 struct hdac_hdmi_priv {
125 struct hdac_hdmi_dai_port_map dai_map[HDA_MAX_CVTS];
126 struct list_head pin_list;
127 struct list_head cvt_list;
128 struct list_head pcm_list;
129 int num_pin;
130 int num_cvt;
131 int num_ports;
132 struct mutex pin_mutex;
133 struct hdac_chmap chmap;
134 };
135
136 static struct hdac_hdmi_pcm *
137 hdac_hdmi_get_pcm_from_cvt(struct hdac_hdmi_priv *hdmi,
138 struct hdac_hdmi_cvt *cvt)
139 {
140 struct hdac_hdmi_pcm *pcm = NULL;
141
142 list_for_each_entry(pcm, &hdmi->pcm_list, head) {
143 if (pcm->cvt == cvt)
144 break;
145 }
146
147 return pcm;
148 }
149
150 static void hdac_hdmi_jack_report(struct hdac_hdmi_pcm *pcm,
151 struct hdac_hdmi_port *port, bool is_connect)
152 {
153 struct hdac_ext_device *edev = port->pin->edev;
154
155 if (is_connect)
156 snd_soc_dapm_enable_pin(port->dapm, port->jack_pin);
157 else
158 snd_soc_dapm_disable_pin(port->dapm, port->jack_pin);
159
160 if (is_connect) {
161 /*
162 * Report Jack connect event when a device is connected
163 * for the first time where same PCM is attached to multiple
164 * ports.
165 */
166 if (pcm->jack_event == 0) {
167 dev_dbg(&edev->hdac.dev,
168 "jack report for pcm=%d\n",
169 pcm->pcm_id);
170 snd_soc_jack_report(pcm->jack, SND_JACK_AVOUT,
171 SND_JACK_AVOUT);
172 }
173 pcm->jack_event++;
174 } else {
175 /*
176 * Report Jack disconnect event when a device is disconnected
177 * is the only last connected device when same PCM is attached
178 * to multiple ports.
179 */
180 if (pcm->jack_event == 1)
181 snd_soc_jack_report(pcm->jack, 0, SND_JACK_AVOUT);
182 if (pcm->jack_event > 0)
183 pcm->jack_event--;
184 }
185
186 snd_soc_dapm_sync(port->dapm);
187 }
188
189 /* MST supported verbs */
190 /*
191 * Get the no devices that can be connected to a port on the Pin widget.
192 */
193 static int hdac_hdmi_get_port_len(struct hdac_ext_device *hdac, hda_nid_t nid)
194 {
195 unsigned int caps;
196 unsigned int type, param;
197
198 caps = get_wcaps(&hdac->hdac, nid);
199 type = get_wcaps_type(caps);
200
201 if (!(caps & AC_WCAP_DIGITAL) || (type != AC_WID_PIN))
202 return 0;
203
204 param = snd_hdac_read_parm_uncached(&hdac->hdac, nid,
205 AC_PAR_DEVLIST_LEN);
206 if (param == -1)
207 return param;
208
209 return param & AC_DEV_LIST_LEN_MASK;
210 }
211
212 /*
213 * Get the port entry select on the pin. Return the port entry
214 * id selected on the pin. Return 0 means the first port entry
215 * is selected or MST is not supported.
216 */
217 static int hdac_hdmi_port_select_get(struct hdac_ext_device *hdac,
218 struct hdac_hdmi_port *port)
219 {
220 return snd_hdac_codec_read(&hdac->hdac, port->pin->nid,
221 0, AC_VERB_GET_DEVICE_SEL, 0);
222 }
223
224 /*
225 * Sets the selected port entry for the configuring Pin widget verb.
226 * returns error if port set is not equal to port get otherwise success
227 */
228 static int hdac_hdmi_port_select_set(struct hdac_ext_device *hdac,
229 struct hdac_hdmi_port *port)
230 {
231 int num_ports;
232
233 if (!port->pin->mst_capable)
234 return 0;
235
236 /* AC_PAR_DEVLIST_LEN is 0 based. */
237 num_ports = hdac_hdmi_get_port_len(hdac, port->pin->nid);
238
239 if (num_ports < 0)
240 return -EIO;
241 /*
242 * Device List Length is a 0 based integer value indicating the
243 * number of sink device that a MST Pin Widget can support.
244 */
245 if (num_ports + 1 < port->id)
246 return 0;
247
248 snd_hdac_codec_write(&hdac->hdac, port->pin->nid, 0,
249 AC_VERB_SET_DEVICE_SEL, port->id);
250
251 if (port->id != hdac_hdmi_port_select_get(hdac, port))
252 return -EIO;
253
254 dev_dbg(&hdac->hdac.dev, "Selected the port=%d\n", port->id);
255
256 return 0;
257 }
258
259 static struct hdac_hdmi_pcm *get_hdmi_pcm_from_id(struct hdac_hdmi_priv *hdmi,
260 int pcm_idx)
261 {
262 struct hdac_hdmi_pcm *pcm;
263
264 list_for_each_entry(pcm, &hdmi->pcm_list, head) {
265 if (pcm->pcm_id == pcm_idx)
266 return pcm;
267 }
268
269 return NULL;
270 }
271
272 static inline struct hdac_ext_device *to_hda_ext_device(struct device *dev)
273 {
274 struct hdac_device *hdac = dev_to_hdac_dev(dev);
275
276 return to_ehdac_device(hdac);
277 }
278
279 static unsigned int sad_format(const u8 *sad)
280 {
281 return ((sad[0] >> 0x3) & 0x1f);
282 }
283
284 static unsigned int sad_sample_bits_lpcm(const u8 *sad)
285 {
286 return (sad[2] & 7);
287 }
288
289 static int hdac_hdmi_eld_limit_formats(struct snd_pcm_runtime *runtime,
290 void *eld)
291 {
292 u64 formats = SNDRV_PCM_FMTBIT_S16;
293 int i;
294 const u8 *sad, *eld_buf = eld;
295
296 sad = drm_eld_sad(eld_buf);
297 if (!sad)
298 goto format_constraint;
299
300 for (i = drm_eld_sad_count(eld_buf); i > 0; i--, sad += 3) {
301 if (sad_format(sad) == 1) { /* AUDIO_CODING_TYPE_LPCM */
302
303 /*
304 * the controller support 20 and 24 bits in 32 bit
305 * container so we set S32
306 */
307 if (sad_sample_bits_lpcm(sad) & 0x6)
308 formats |= SNDRV_PCM_FMTBIT_S32;
309 }
310 }
311
312 format_constraint:
313 return snd_pcm_hw_constraint_mask64(runtime, SNDRV_PCM_HW_PARAM_FORMAT,
314 formats);
315
316 }
317
318 static void
319 hdac_hdmi_set_dip_index(struct hdac_ext_device *hdac, hda_nid_t pin_nid,
320 int packet_index, int byte_index)
321 {
322 int val;
323
324 val = (packet_index << 5) | (byte_index & 0x1f);
325
326 snd_hdac_codec_write(&hdac->hdac, pin_nid, 0,
327 AC_VERB_SET_HDMI_DIP_INDEX, val);
328 }
329
330 struct dp_audio_infoframe {
331 u8 type; /* 0x84 */
332 u8 len; /* 0x1b */
333 u8 ver; /* 0x11 << 2 */
334
335 u8 CC02_CT47; /* match with HDMI infoframe from this on */
336 u8 SS01_SF24;
337 u8 CXT04;
338 u8 CA;
339 u8 LFEPBL01_LSV36_DM_INH7;
340 };
341
342 static int hdac_hdmi_setup_audio_infoframe(struct hdac_ext_device *hdac,
343 struct hdac_hdmi_pcm *pcm, struct hdac_hdmi_port *port)
344 {
345 uint8_t buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_AUDIO_INFOFRAME_SIZE];
346 struct hdmi_audio_infoframe frame;
347 struct hdac_hdmi_pin *pin = port->pin;
348 struct dp_audio_infoframe dp_ai;
349 struct hdac_hdmi_priv *hdmi = hdac->private_data;
350 struct hdac_hdmi_cvt *cvt = pcm->cvt;
351 u8 *dip;
352 int ret;
353 int i;
354 const u8 *eld_buf;
355 u8 conn_type;
356 int channels, ca;
357
358 ca = snd_hdac_channel_allocation(&hdac->hdac, port->eld.info.spk_alloc,
359 pcm->channels, pcm->chmap_set, true, pcm->chmap);
360
361 channels = snd_hdac_get_active_channels(ca);
362 hdmi->chmap.ops.set_channel_count(&hdac->hdac, cvt->nid, channels);
363
364 snd_hdac_setup_channel_mapping(&hdmi->chmap, pin->nid, false, ca,
365 pcm->channels, pcm->chmap, pcm->chmap_set);
366
367 eld_buf = port->eld.eld_buffer;
368 conn_type = drm_eld_get_conn_type(eld_buf);
369
370 switch (conn_type) {
371 case DRM_ELD_CONN_TYPE_HDMI:
372 hdmi_audio_infoframe_init(&frame);
373
374 frame.channels = channels;
375 frame.channel_allocation = ca;
376
377 ret = hdmi_audio_infoframe_pack(&frame, buffer, sizeof(buffer));
378 if (ret < 0)
379 return ret;
380
381 break;
382
383 case DRM_ELD_CONN_TYPE_DP:
384 memset(&dp_ai, 0, sizeof(dp_ai));
385 dp_ai.type = 0x84;
386 dp_ai.len = 0x1b;
387 dp_ai.ver = 0x11 << 2;
388 dp_ai.CC02_CT47 = channels - 1;
389 dp_ai.CA = ca;
390
391 dip = (u8 *)&dp_ai;
392 break;
393
394 default:
395 dev_err(&hdac->hdac.dev, "Invalid connection type: %d\n",
396 conn_type);
397 return -EIO;
398 }
399
400 /* stop infoframe transmission */
401 hdac_hdmi_set_dip_index(hdac, pin->nid, 0x0, 0x0);
402 snd_hdac_codec_write(&hdac->hdac, pin->nid, 0,
403 AC_VERB_SET_HDMI_DIP_XMIT, AC_DIPXMIT_DISABLE);
404
405
406 /* Fill infoframe. Index auto-incremented */
407 hdac_hdmi_set_dip_index(hdac, pin->nid, 0x0, 0x0);
408 if (conn_type == DRM_ELD_CONN_TYPE_HDMI) {
409 for (i = 0; i < sizeof(buffer); i++)
410 snd_hdac_codec_write(&hdac->hdac, pin->nid, 0,
411 AC_VERB_SET_HDMI_DIP_DATA, buffer[i]);
412 } else {
413 for (i = 0; i < sizeof(dp_ai); i++)
414 snd_hdac_codec_write(&hdac->hdac, pin->nid, 0,
415 AC_VERB_SET_HDMI_DIP_DATA, dip[i]);
416 }
417
418 /* Start infoframe */
419 hdac_hdmi_set_dip_index(hdac, pin->nid, 0x0, 0x0);
420 snd_hdac_codec_write(&hdac->hdac, pin->nid, 0,
421 AC_VERB_SET_HDMI_DIP_XMIT, AC_DIPXMIT_BEST);
422
423 return 0;
424 }
425
426 static int hdac_hdmi_set_tdm_slot(struct snd_soc_dai *dai,
427 unsigned int tx_mask, unsigned int rx_mask,
428 int slots, int slot_width)
429 {
430 struct hdac_ext_device *edev = snd_soc_dai_get_drvdata(dai);
431 struct hdac_hdmi_priv *hdmi = edev->private_data;
432 struct hdac_hdmi_dai_port_map *dai_map;
433 struct hdac_hdmi_pcm *pcm;
434
435 dev_dbg(&edev->hdac.dev, "%s: strm_tag: %d\n", __func__, tx_mask);
436
437 dai_map = &hdmi->dai_map[dai->id];
438
439 pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, dai_map->cvt);
440
441 if (pcm)
442 pcm->stream_tag = (tx_mask << 4);
443
444 return 0;
445 }
446
447 static int hdac_hdmi_set_hw_params(struct snd_pcm_substream *substream,
448 struct snd_pcm_hw_params *hparams, struct snd_soc_dai *dai)
449 {
450 struct hdac_ext_device *hdac = snd_soc_dai_get_drvdata(dai);
451 struct hdac_hdmi_priv *hdmi = hdac->private_data;
452 struct hdac_hdmi_dai_port_map *dai_map;
453 struct hdac_hdmi_port *port;
454 struct hdac_hdmi_pcm *pcm;
455 int format;
456
457 dai_map = &hdmi->dai_map[dai->id];
458 port = dai_map->port;
459
460 if (!port)
461 return -ENODEV;
462
463 if ((!port->eld.monitor_present) || (!port->eld.eld_valid)) {
464 dev_err(&hdac->hdac.dev,
465 "device is not configured for this pin:port%d:%d\n",
466 port->pin->nid, port->id);
467 return -ENODEV;
468 }
469
470 format = snd_hdac_calc_stream_format(params_rate(hparams),
471 params_channels(hparams), params_format(hparams),
472 24, 0);
473
474 pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, dai_map->cvt);
475 if (!pcm)
476 return -EIO;
477
478 pcm->format = format;
479 pcm->channels = params_channels(hparams);
480
481 return 0;
482 }
483
484 static int hdac_hdmi_query_port_connlist(struct hdac_ext_device *hdac,
485 struct hdac_hdmi_pin *pin,
486 struct hdac_hdmi_port *port)
487 {
488 if (!(get_wcaps(&hdac->hdac, pin->nid) & AC_WCAP_CONN_LIST)) {
489 dev_warn(&hdac->hdac.dev,
490 "HDMI: pin %d wcaps %#x does not support connection list\n",
491 pin->nid, get_wcaps(&hdac->hdac, pin->nid));
492 return -EINVAL;
493 }
494
495 if (hdac_hdmi_port_select_set(hdac, port) < 0)
496 return -EIO;
497
498 port->num_mux_nids = snd_hdac_get_connections(&hdac->hdac, pin->nid,
499 port->mux_nids, HDA_MAX_CONNECTIONS);
500 if (port->num_mux_nids == 0)
501 dev_warn(&hdac->hdac.dev,
502 "No connections found for pin:port %d:%d\n",
503 pin->nid, port->id);
504
505 dev_dbg(&hdac->hdac.dev, "num_mux_nids %d for pin:port %d:%d\n",
506 port->num_mux_nids, pin->nid, port->id);
507
508 return port->num_mux_nids;
509 }
510
511 /*
512 * Query pcm list and return port to which stream is routed.
513 *
514 * Also query connection list of the pin, to validate the cvt to port map.
515 *
516 * Same stream rendering to multiple ports simultaneously can be done
517 * possibly, but not supported for now in driver. So return the first port
518 * connected.
519 */
520 static struct hdac_hdmi_port *hdac_hdmi_get_port_from_cvt(
521 struct hdac_ext_device *edev,
522 struct hdac_hdmi_priv *hdmi,
523 struct hdac_hdmi_cvt *cvt)
524 {
525 struct hdac_hdmi_pcm *pcm;
526 struct hdac_hdmi_port *port = NULL;
527 int ret, i;
528
529 list_for_each_entry(pcm, &hdmi->pcm_list, head) {
530 if (pcm->cvt == cvt) {
531 if (list_empty(&pcm->port_list))
532 continue;
533
534 list_for_each_entry(port, &pcm->port_list, head) {
535 mutex_lock(&pcm->lock);
536 ret = hdac_hdmi_query_port_connlist(edev,
537 port->pin, port);
538 mutex_unlock(&pcm->lock);
539 if (ret < 0)
540 continue;
541
542 for (i = 0; i < port->num_mux_nids; i++) {
543 if (port->mux_nids[i] == cvt->nid &&
544 port->eld.monitor_present &&
545 port->eld.eld_valid)
546 return port;
547 }
548 }
549 }
550 }
551
552 return NULL;
553 }
554
555 /*
556 * This tries to get a valid pin and set the HW constraints based on the
557 * ELD. Even if a valid pin is not found return success so that device open
558 * doesn't fail.
559 */
560 static int hdac_hdmi_pcm_open(struct snd_pcm_substream *substream,
561 struct snd_soc_dai *dai)
562 {
563 struct hdac_ext_device *hdac = snd_soc_dai_get_drvdata(dai);
564 struct hdac_hdmi_priv *hdmi = hdac->private_data;
565 struct hdac_hdmi_dai_port_map *dai_map;
566 struct hdac_hdmi_cvt *cvt;
567 struct hdac_hdmi_port *port;
568 int ret;
569
570 dai_map = &hdmi->dai_map[dai->id];
571
572 cvt = dai_map->cvt;
573 port = hdac_hdmi_get_port_from_cvt(hdac, hdmi, cvt);
574
575 /*
576 * To make PA and other userland happy.
577 * userland scans devices so returning error does not help.
578 */
579 if (!port)
580 return 0;
581 if ((!port->eld.monitor_present) ||
582 (!port->eld.eld_valid)) {
583
584 dev_warn(&hdac->hdac.dev,
585 "Failed: present?:%d ELD valid?:%d pin:port: %d:%d\n",
586 port->eld.monitor_present, port->eld.eld_valid,
587 port->pin->nid, port->id);
588
589 return 0;
590 }
591
592 dai_map->port = port;
593
594 ret = hdac_hdmi_eld_limit_formats(substream->runtime,
595 port->eld.eld_buffer);
596 if (ret < 0)
597 return ret;
598
599 return snd_pcm_hw_constraint_eld(substream->runtime,
600 port->eld.eld_buffer);
601 }
602
603 static void hdac_hdmi_pcm_close(struct snd_pcm_substream *substream,
604 struct snd_soc_dai *dai)
605 {
606 struct hdac_ext_device *hdac = snd_soc_dai_get_drvdata(dai);
607 struct hdac_hdmi_priv *hdmi = hdac->private_data;
608 struct hdac_hdmi_dai_port_map *dai_map;
609 struct hdac_hdmi_pcm *pcm;
610
611 dai_map = &hdmi->dai_map[dai->id];
612
613 pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, dai_map->cvt);
614
615 if (pcm) {
616 mutex_lock(&pcm->lock);
617 pcm->chmap_set = false;
618 memset(pcm->chmap, 0, sizeof(pcm->chmap));
619 pcm->channels = 0;
620 mutex_unlock(&pcm->lock);
621 }
622
623 if (dai_map->port)
624 dai_map->port = NULL;
625 }
626
627 static int
628 hdac_hdmi_query_cvt_params(struct hdac_device *hdac, struct hdac_hdmi_cvt *cvt)
629 {
630 unsigned int chans;
631 struct hdac_ext_device *edev = to_ehdac_device(hdac);
632 struct hdac_hdmi_priv *hdmi = edev->private_data;
633 int err;
634
635 chans = get_wcaps(hdac, cvt->nid);
636 chans = get_wcaps_channels(chans);
637
638 cvt->params.channels_min = 2;
639
640 cvt->params.channels_max = chans;
641 if (chans > hdmi->chmap.channels_max)
642 hdmi->chmap.channels_max = chans;
643
644 err = snd_hdac_query_supported_pcm(hdac, cvt->nid,
645 &cvt->params.rates,
646 &cvt->params.formats,
647 &cvt->params.maxbps);
648 if (err < 0)
649 dev_err(&hdac->dev,
650 "Failed to query pcm params for nid %d: %d\n",
651 cvt->nid, err);
652
653 return err;
654 }
655
656 static int hdac_hdmi_fill_widget_info(struct device *dev,
657 struct snd_soc_dapm_widget *w, enum snd_soc_dapm_type id,
658 void *priv, const char *wname, const char *stream,
659 struct snd_kcontrol_new *wc, int numkc,
660 int (*event)(struct snd_soc_dapm_widget *,
661 struct snd_kcontrol *, int), unsigned short event_flags)
662 {
663 w->id = id;
664 w->name = devm_kstrdup(dev, wname, GFP_KERNEL);
665 if (!w->name)
666 return -ENOMEM;
667
668 w->sname = stream;
669 w->reg = SND_SOC_NOPM;
670 w->shift = 0;
671 w->kcontrol_news = wc;
672 w->num_kcontrols = numkc;
673 w->priv = priv;
674 w->event = event;
675 w->event_flags = event_flags;
676
677 return 0;
678 }
679
680 static void hdac_hdmi_fill_route(struct snd_soc_dapm_route *route,
681 const char *sink, const char *control, const char *src,
682 int (*handler)(struct snd_soc_dapm_widget *src,
683 struct snd_soc_dapm_widget *sink))
684 {
685 route->sink = sink;
686 route->source = src;
687 route->control = control;
688 route->connected = handler;
689 }
690
691 static struct hdac_hdmi_pcm *hdac_hdmi_get_pcm(struct hdac_ext_device *edev,
692 struct hdac_hdmi_port *port)
693 {
694 struct hdac_hdmi_priv *hdmi = edev->private_data;
695 struct hdac_hdmi_pcm *pcm = NULL;
696 struct hdac_hdmi_port *p;
697
698 list_for_each_entry(pcm, &hdmi->pcm_list, head) {
699 if (list_empty(&pcm->port_list))
700 continue;
701
702 list_for_each_entry(p, &pcm->port_list, head) {
703 if (p->id == port->id && port->pin == p->pin)
704 return pcm;
705 }
706 }
707
708 return NULL;
709 }
710
711 static void hdac_hdmi_set_power_state(struct hdac_ext_device *edev,
712 hda_nid_t nid, unsigned int pwr_state)
713 {
714 if (get_wcaps(&edev->hdac, nid) & AC_WCAP_POWER) {
715 if (!snd_hdac_check_power_state(&edev->hdac, nid, pwr_state))
716 snd_hdac_codec_write(&edev->hdac, nid, 0,
717 AC_VERB_SET_POWER_STATE, pwr_state);
718 }
719 }
720
721 static void hdac_hdmi_set_amp(struct hdac_ext_device *edev,
722 hda_nid_t nid, int val)
723 {
724 if (get_wcaps(&edev->hdac, nid) & AC_WCAP_OUT_AMP)
725 snd_hdac_codec_write(&edev->hdac, nid, 0,
726 AC_VERB_SET_AMP_GAIN_MUTE, val);
727 }
728
729
730 static int hdac_hdmi_pin_output_widget_event(struct snd_soc_dapm_widget *w,
731 struct snd_kcontrol *kc, int event)
732 {
733 struct hdac_hdmi_port *port = w->priv;
734 struct hdac_ext_device *edev = to_hda_ext_device(w->dapm->dev);
735 struct hdac_hdmi_pcm *pcm;
736
737 dev_dbg(&edev->hdac.dev, "%s: widget: %s event: %x\n",
738 __func__, w->name, event);
739
740 pcm = hdac_hdmi_get_pcm(edev, port);
741 if (!pcm)
742 return -EIO;
743
744 /* set the device if pin is mst_capable */
745 if (hdac_hdmi_port_select_set(edev, port) < 0)
746 return -EIO;
747
748 switch (event) {
749 case SND_SOC_DAPM_PRE_PMU:
750 hdac_hdmi_set_power_state(edev, port->pin->nid, AC_PWRST_D0);
751
752 /* Enable out path for this pin widget */
753 snd_hdac_codec_write(&edev->hdac, port->pin->nid, 0,
754 AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT);
755
756 hdac_hdmi_set_amp(edev, port->pin->nid, AMP_OUT_UNMUTE);
757
758 return hdac_hdmi_setup_audio_infoframe(edev, pcm, port);
759
760 case SND_SOC_DAPM_POST_PMD:
761 hdac_hdmi_set_amp(edev, port->pin->nid, AMP_OUT_MUTE);
762
763 /* Disable out path for this pin widget */
764 snd_hdac_codec_write(&edev->hdac, port->pin->nid, 0,
765 AC_VERB_SET_PIN_WIDGET_CONTROL, 0);
766
767 hdac_hdmi_set_power_state(edev, port->pin->nid, AC_PWRST_D3);
768 break;
769
770 }
771
772 return 0;
773 }
774
775 static int hdac_hdmi_cvt_output_widget_event(struct snd_soc_dapm_widget *w,
776 struct snd_kcontrol *kc, int event)
777 {
778 struct hdac_hdmi_cvt *cvt = w->priv;
779 struct hdac_ext_device *edev = to_hda_ext_device(w->dapm->dev);
780 struct hdac_hdmi_priv *hdmi = edev->private_data;
781 struct hdac_hdmi_pcm *pcm;
782
783 dev_dbg(&edev->hdac.dev, "%s: widget: %s event: %x\n",
784 __func__, w->name, event);
785
786 pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, cvt);
787 if (!pcm)
788 return -EIO;
789
790 switch (event) {
791 case SND_SOC_DAPM_PRE_PMU:
792 hdac_hdmi_set_power_state(edev, cvt->nid, AC_PWRST_D0);
793
794 /* Enable transmission */
795 snd_hdac_codec_write(&edev->hdac, cvt->nid, 0,
796 AC_VERB_SET_DIGI_CONVERT_1, 1);
797
798 /* Category Code (CC) to zero */
799 snd_hdac_codec_write(&edev->hdac, cvt->nid, 0,
800 AC_VERB_SET_DIGI_CONVERT_2, 0);
801
802 snd_hdac_codec_write(&edev->hdac, cvt->nid, 0,
803 AC_VERB_SET_CHANNEL_STREAMID, pcm->stream_tag);
804 snd_hdac_codec_write(&edev->hdac, cvt->nid, 0,
805 AC_VERB_SET_STREAM_FORMAT, pcm->format);
806 break;
807
808 case SND_SOC_DAPM_POST_PMD:
809 snd_hdac_codec_write(&edev->hdac, cvt->nid, 0,
810 AC_VERB_SET_CHANNEL_STREAMID, 0);
811 snd_hdac_codec_write(&edev->hdac, cvt->nid, 0,
812 AC_VERB_SET_STREAM_FORMAT, 0);
813
814 hdac_hdmi_set_power_state(edev, cvt->nid, AC_PWRST_D3);
815 break;
816
817 }
818
819 return 0;
820 }
821
822 static int hdac_hdmi_pin_mux_widget_event(struct snd_soc_dapm_widget *w,
823 struct snd_kcontrol *kc, int event)
824 {
825 struct hdac_hdmi_port *port = w->priv;
826 struct hdac_ext_device *edev = to_hda_ext_device(w->dapm->dev);
827 int mux_idx;
828
829 dev_dbg(&edev->hdac.dev, "%s: widget: %s event: %x\n",
830 __func__, w->name, event);
831
832 if (!kc)
833 kc = w->kcontrols[0];
834
835 mux_idx = dapm_kcontrol_get_value(kc);
836
837 /* set the device if pin is mst_capable */
838 if (hdac_hdmi_port_select_set(edev, port) < 0)
839 return -EIO;
840
841 if (mux_idx > 0) {
842 snd_hdac_codec_write(&edev->hdac, port->pin->nid, 0,
843 AC_VERB_SET_CONNECT_SEL, (mux_idx - 1));
844 }
845
846 return 0;
847 }
848
849 /*
850 * Based on user selection, map the PINs with the PCMs.
851 */
852 static int hdac_hdmi_set_pin_port_mux(struct snd_kcontrol *kcontrol,
853 struct snd_ctl_elem_value *ucontrol)
854 {
855 int ret;
856 struct hdac_hdmi_port *p, *p_next;
857 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
858 struct snd_soc_dapm_widget *w = snd_soc_dapm_kcontrol_widget(kcontrol);
859 struct snd_soc_dapm_context *dapm = w->dapm;
860 struct hdac_hdmi_port *port = w->priv;
861 struct hdac_ext_device *edev = to_hda_ext_device(dapm->dev);
862 struct hdac_hdmi_priv *hdmi = edev->private_data;
863 struct hdac_hdmi_pcm *pcm = NULL;
864 const char *cvt_name = e->texts[ucontrol->value.enumerated.item[0]];
865
866 ret = snd_soc_dapm_put_enum_double(kcontrol, ucontrol);
867 if (ret < 0)
868 return ret;
869
870 if (port == NULL)
871 return -EINVAL;
872
873 mutex_lock(&hdmi->pin_mutex);
874 list_for_each_entry(pcm, &hdmi->pcm_list, head) {
875 if (list_empty(&pcm->port_list))
876 continue;
877
878 list_for_each_entry_safe(p, p_next, &pcm->port_list, head) {
879 if (p == port && p->id == port->id &&
880 p->pin == port->pin) {
881 hdac_hdmi_jack_report(pcm, port, false);
882 list_del(&p->head);
883 }
884 }
885 }
886
887 /*
888 * Jack status is not reported during device probe as the
889 * PCMs are not registered by then. So report it here.
890 */
891 list_for_each_entry(pcm, &hdmi->pcm_list, head) {
892 if (!strcmp(cvt_name, pcm->cvt->name)) {
893 list_add_tail(&port->head, &pcm->port_list);
894 if (port->eld.monitor_present && port->eld.eld_valid) {
895 hdac_hdmi_jack_report(pcm, port, true);
896 mutex_unlock(&hdmi->pin_mutex);
897 return ret;
898 }
899 }
900 }
901 mutex_unlock(&hdmi->pin_mutex);
902
903 return ret;
904 }
905
906 /*
907 * Ideally the Mux inputs should be based on the num_muxs enumerated, but
908 * the display driver seem to be programming the connection list for the pin
909 * widget runtime.
910 *
911 * So programming all the possible inputs for the mux, the user has to take
912 * care of selecting the right one and leaving all other inputs selected to
913 * "NONE"
914 */
915 static int hdac_hdmi_create_pin_port_muxs(struct hdac_ext_device *edev,
916 struct hdac_hdmi_port *port,
917 struct snd_soc_dapm_widget *widget,
918 const char *widget_name)
919 {
920 struct hdac_hdmi_priv *hdmi = edev->private_data;
921 struct hdac_hdmi_pin *pin = port->pin;
922 struct snd_kcontrol_new *kc;
923 struct hdac_hdmi_cvt *cvt;
924 struct soc_enum *se;
925 char kc_name[NAME_SIZE];
926 char mux_items[NAME_SIZE];
927 /* To hold inputs to the Pin mux */
928 char *items[HDA_MAX_CONNECTIONS];
929 int i = 0;
930 int num_items = hdmi->num_cvt + 1;
931
932 kc = devm_kzalloc(&edev->hdac.dev, sizeof(*kc), GFP_KERNEL);
933 if (!kc)
934 return -ENOMEM;
935
936 se = devm_kzalloc(&edev->hdac.dev, sizeof(*se), GFP_KERNEL);
937 if (!se)
938 return -ENOMEM;
939
940 sprintf(kc_name, "Pin %d port %d Input", pin->nid, port->id);
941 kc->name = devm_kstrdup(&edev->hdac.dev, kc_name, GFP_KERNEL);
942 if (!kc->name)
943 return -ENOMEM;
944
945 kc->private_value = (long)se;
946 kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
947 kc->access = 0;
948 kc->info = snd_soc_info_enum_double;
949 kc->put = hdac_hdmi_set_pin_port_mux;
950 kc->get = snd_soc_dapm_get_enum_double;
951
952 se->reg = SND_SOC_NOPM;
953
954 /* enum texts: ["NONE", "cvt #", "cvt #", ...] */
955 se->items = num_items;
956 se->mask = roundup_pow_of_two(se->items) - 1;
957
958 sprintf(mux_items, "NONE");
959 items[i] = devm_kstrdup(&edev->hdac.dev, mux_items, GFP_KERNEL);
960 if (!items[i])
961 return -ENOMEM;
962
963 list_for_each_entry(cvt, &hdmi->cvt_list, head) {
964 i++;
965 sprintf(mux_items, "cvt %d", cvt->nid);
966 items[i] = devm_kstrdup(&edev->hdac.dev, mux_items, GFP_KERNEL);
967 if (!items[i])
968 return -ENOMEM;
969 }
970
971 se->texts = devm_kmemdup(&edev->hdac.dev, items,
972 (num_items * sizeof(char *)), GFP_KERNEL);
973 if (!se->texts)
974 return -ENOMEM;
975
976 return hdac_hdmi_fill_widget_info(&edev->hdac.dev, widget,
977 snd_soc_dapm_mux, port, widget_name, NULL, kc, 1,
978 hdac_hdmi_pin_mux_widget_event,
979 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_REG);
980 }
981
982 /* Add cvt <- input <- mux route map */
983 static void hdac_hdmi_add_pinmux_cvt_route(struct hdac_ext_device *edev,
984 struct snd_soc_dapm_widget *widgets,
985 struct snd_soc_dapm_route *route, int rindex)
986 {
987 struct hdac_hdmi_priv *hdmi = edev->private_data;
988 const struct snd_kcontrol_new *kc;
989 struct soc_enum *se;
990 int mux_index = hdmi->num_cvt + hdmi->num_ports;
991 int i, j;
992
993 for (i = 0; i < hdmi->num_ports; i++) {
994 kc = widgets[mux_index].kcontrol_news;
995 se = (struct soc_enum *)kc->private_value;
996 for (j = 0; j < hdmi->num_cvt; j++) {
997 hdac_hdmi_fill_route(&route[rindex],
998 widgets[mux_index].name,
999 se->texts[j + 1],
1000 widgets[j].name, NULL);
1001
1002 rindex++;
1003 }
1004
1005 mux_index++;
1006 }
1007 }
1008
1009 /*
1010 * Widgets are added in the below sequence
1011 * Converter widgets for num converters enumerated
1012 * Pin-port widgets for num ports for Pins enumerated
1013 * Pin-port mux widgets to represent connenction list of pin widget
1014 *
1015 * For each port, one Mux and One output widget is added
1016 * Total widgets elements = num_cvt + (num_ports * 2);
1017 *
1018 * Routes are added as below:
1019 * pin-port mux -> pin (based on num_ports)
1020 * cvt -> "Input sel control" -> pin-port_mux
1021 *
1022 * Total route elements:
1023 * num_ports + (pin_muxes * num_cvt)
1024 */
1025 static int create_fill_widget_route_map(struct snd_soc_dapm_context *dapm)
1026 {
1027 struct snd_soc_dapm_widget *widgets;
1028 struct snd_soc_dapm_route *route;
1029 struct hdac_ext_device *edev = to_hda_ext_device(dapm->dev);
1030 struct hdac_hdmi_priv *hdmi = edev->private_data;
1031 struct snd_soc_dai_driver *dai_drv = dapm->component->dai_drv;
1032 char widget_name[NAME_SIZE];
1033 struct hdac_hdmi_cvt *cvt;
1034 struct hdac_hdmi_pin *pin;
1035 int ret, i = 0, num_routes = 0, j;
1036
1037 if (list_empty(&hdmi->cvt_list) || list_empty(&hdmi->pin_list))
1038 return -EINVAL;
1039
1040 widgets = devm_kzalloc(dapm->dev, (sizeof(*widgets) *
1041 ((2 * hdmi->num_ports) + hdmi->num_cvt)),
1042 GFP_KERNEL);
1043
1044 if (!widgets)
1045 return -ENOMEM;
1046
1047 /* DAPM widgets to represent each converter widget */
1048 list_for_each_entry(cvt, &hdmi->cvt_list, head) {
1049 sprintf(widget_name, "Converter %d", cvt->nid);
1050 ret = hdac_hdmi_fill_widget_info(dapm->dev, &widgets[i],
1051 snd_soc_dapm_aif_in, cvt,
1052 widget_name, dai_drv[i].playback.stream_name, NULL, 0,
1053 hdac_hdmi_cvt_output_widget_event,
1054 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD);
1055 if (ret < 0)
1056 return ret;
1057 i++;
1058 }
1059
1060 list_for_each_entry(pin, &hdmi->pin_list, head) {
1061 for (j = 0; j < pin->num_ports; j++) {
1062 sprintf(widget_name, "hif%d-%d Output",
1063 pin->nid, pin->ports[j].id);
1064 ret = hdac_hdmi_fill_widget_info(dapm->dev, &widgets[i],
1065 snd_soc_dapm_output, &pin->ports[j],
1066 widget_name, NULL, NULL, 0,
1067 hdac_hdmi_pin_output_widget_event,
1068 SND_SOC_DAPM_PRE_PMU |
1069 SND_SOC_DAPM_POST_PMD);
1070 if (ret < 0)
1071 return ret;
1072 pin->ports[j].output_pin = widgets[i].name;
1073 i++;
1074 }
1075 }
1076
1077 /* DAPM widgets to represent the connection list to pin widget */
1078 list_for_each_entry(pin, &hdmi->pin_list, head) {
1079 for (j = 0; j < pin->num_ports; j++) {
1080 sprintf(widget_name, "Pin%d-Port%d Mux",
1081 pin->nid, pin->ports[j].id);
1082 ret = hdac_hdmi_create_pin_port_muxs(edev,
1083 &pin->ports[j], &widgets[i],
1084 widget_name);
1085 if (ret < 0)
1086 return ret;
1087 i++;
1088
1089 /* For cvt to pin_mux mapping */
1090 num_routes += hdmi->num_cvt;
1091
1092 /* For pin_mux to pin mapping */
1093 num_routes++;
1094 }
1095 }
1096
1097 route = devm_kzalloc(dapm->dev, (sizeof(*route) * num_routes),
1098 GFP_KERNEL);
1099 if (!route)
1100 return -ENOMEM;
1101
1102 i = 0;
1103 /* Add pin <- NULL <- mux route map */
1104 list_for_each_entry(pin, &hdmi->pin_list, head) {
1105 for (j = 0; j < pin->num_ports; j++) {
1106 int sink_index = i + hdmi->num_cvt;
1107 int src_index = sink_index + pin->num_ports *
1108 hdmi->num_pin;
1109
1110 hdac_hdmi_fill_route(&route[i],
1111 widgets[sink_index].name, NULL,
1112 widgets[src_index].name, NULL);
1113 i++;
1114 }
1115 }
1116
1117 hdac_hdmi_add_pinmux_cvt_route(edev, widgets, route, i);
1118
1119 snd_soc_dapm_new_controls(dapm, widgets,
1120 ((2 * hdmi->num_ports) + hdmi->num_cvt));
1121
1122 snd_soc_dapm_add_routes(dapm, route, num_routes);
1123 snd_soc_dapm_new_widgets(dapm->card);
1124
1125 return 0;
1126
1127 }
1128
1129 static int hdac_hdmi_init_dai_map(struct hdac_ext_device *edev)
1130 {
1131 struct hdac_hdmi_priv *hdmi = edev->private_data;
1132 struct hdac_hdmi_dai_port_map *dai_map;
1133 struct hdac_hdmi_cvt *cvt;
1134 int dai_id = 0;
1135
1136 if (list_empty(&hdmi->cvt_list))
1137 return -EINVAL;
1138
1139 list_for_each_entry(cvt, &hdmi->cvt_list, head) {
1140 dai_map = &hdmi->dai_map[dai_id];
1141 dai_map->dai_id = dai_id;
1142 dai_map->cvt = cvt;
1143
1144 dai_id++;
1145
1146 if (dai_id == HDA_MAX_CVTS) {
1147 dev_warn(&edev->hdac.dev,
1148 "Max dais supported: %d\n", dai_id);
1149 break;
1150 }
1151 }
1152
1153 return 0;
1154 }
1155
1156 static int hdac_hdmi_add_cvt(struct hdac_ext_device *edev, hda_nid_t nid)
1157 {
1158 struct hdac_hdmi_priv *hdmi = edev->private_data;
1159 struct hdac_hdmi_cvt *cvt;
1160 char name[NAME_SIZE];
1161
1162 cvt = kzalloc(sizeof(*cvt), GFP_KERNEL);
1163 if (!cvt)
1164 return -ENOMEM;
1165
1166 cvt->nid = nid;
1167 sprintf(name, "cvt %d", cvt->nid);
1168 cvt->name = kstrdup(name, GFP_KERNEL);
1169
1170 list_add_tail(&cvt->head, &hdmi->cvt_list);
1171 hdmi->num_cvt++;
1172
1173 return hdac_hdmi_query_cvt_params(&edev->hdac, cvt);
1174 }
1175
1176 static int hdac_hdmi_parse_eld(struct hdac_ext_device *edev,
1177 struct hdac_hdmi_port *port)
1178 {
1179 unsigned int ver, mnl;
1180
1181 ver = (port->eld.eld_buffer[DRM_ELD_VER] & DRM_ELD_VER_MASK)
1182 >> DRM_ELD_VER_SHIFT;
1183
1184 if (ver != ELD_VER_CEA_861D && ver != ELD_VER_PARTIAL) {
1185 dev_err(&edev->hdac.dev, "HDMI: Unknown ELD version %d\n", ver);
1186 return -EINVAL;
1187 }
1188
1189 mnl = (port->eld.eld_buffer[DRM_ELD_CEA_EDID_VER_MNL] &
1190 DRM_ELD_MNL_MASK) >> DRM_ELD_MNL_SHIFT;
1191
1192 if (mnl > ELD_MAX_MNL) {
1193 dev_err(&edev->hdac.dev, "HDMI: MNL Invalid %d\n", mnl);
1194 return -EINVAL;
1195 }
1196
1197 port->eld.info.spk_alloc = port->eld.eld_buffer[DRM_ELD_SPEAKER];
1198
1199 return 0;
1200 }
1201
1202 static void hdac_hdmi_present_sense(struct hdac_hdmi_pin *pin,
1203 struct hdac_hdmi_port *port)
1204 {
1205 struct hdac_ext_device *edev = pin->edev;
1206 struct hdac_hdmi_priv *hdmi = edev->private_data;
1207 struct hdac_hdmi_pcm *pcm;
1208 int size = 0;
1209 int port_id = -1;
1210
1211 if (!hdmi)
1212 return;
1213
1214 /*
1215 * In case of non MST pin, get_eld info API expectes port
1216 * to be -1.
1217 */
1218 mutex_lock(&hdmi->pin_mutex);
1219 port->eld.monitor_present = false;
1220
1221 if (pin->mst_capable)
1222 port_id = port->id;
1223
1224 size = snd_hdac_acomp_get_eld(&edev->hdac, pin->nid, port_id,
1225 &port->eld.monitor_present,
1226 port->eld.eld_buffer,
1227 ELD_MAX_SIZE);
1228
1229 if (size > 0) {
1230 size = min(size, ELD_MAX_SIZE);
1231 if (hdac_hdmi_parse_eld(edev, port) < 0)
1232 size = -EINVAL;
1233 }
1234
1235 if (size > 0) {
1236 port->eld.eld_valid = true;
1237 port->eld.eld_size = size;
1238 } else {
1239 port->eld.eld_valid = false;
1240 port->eld.eld_size = 0;
1241 }
1242
1243 pcm = hdac_hdmi_get_pcm(edev, port);
1244
1245 if (!port->eld.monitor_present || !port->eld.eld_valid) {
1246
1247 dev_err(&edev->hdac.dev, "%s: disconnect for pin:port %d:%d\n",
1248 __func__, pin->nid, port->id);
1249
1250 /*
1251 * PCMs are not registered during device probe, so don't
1252 * report jack here. It will be done in usermode mux
1253 * control select.
1254 */
1255 if (pcm)
1256 hdac_hdmi_jack_report(pcm, port, false);
1257
1258 mutex_unlock(&hdmi->pin_mutex);
1259 return;
1260 }
1261
1262 if (port->eld.monitor_present && port->eld.eld_valid) {
1263 if (pcm)
1264 hdac_hdmi_jack_report(pcm, port, true);
1265
1266 print_hex_dump_debug("ELD: ", DUMP_PREFIX_OFFSET, 16, 1,
1267 port->eld.eld_buffer, port->eld.eld_size, false);
1268
1269 }
1270 mutex_unlock(&hdmi->pin_mutex);
1271 }
1272
1273 static int hdac_hdmi_add_ports(struct hdac_hdmi_priv *hdmi,
1274 struct hdac_hdmi_pin *pin)
1275 {
1276 struct hdac_hdmi_port *ports;
1277 int max_ports = HDA_MAX_PORTS;
1278 int i;
1279
1280 /*
1281 * FIXME: max_port may vary for each platform, so pass this as
1282 * as driver data or query from i915 interface when this API is
1283 * implemented.
1284 */
1285
1286 ports = kcalloc(max_ports, sizeof(*ports), GFP_KERNEL);
1287 if (!ports)
1288 return -ENOMEM;
1289
1290 for (i = 0; i < max_ports; i++) {
1291 ports[i].id = i;
1292 ports[i].pin = pin;
1293 }
1294 pin->ports = ports;
1295 pin->num_ports = max_ports;
1296 return 0;
1297 }
1298
1299 static int hdac_hdmi_add_pin(struct hdac_ext_device *edev, hda_nid_t nid)
1300 {
1301 struct hdac_hdmi_priv *hdmi = edev->private_data;
1302 struct hdac_hdmi_pin *pin;
1303 int ret;
1304
1305 pin = kzalloc(sizeof(*pin), GFP_KERNEL);
1306 if (!pin)
1307 return -ENOMEM;
1308
1309 pin->nid = nid;
1310 pin->mst_capable = false;
1311 pin->edev = edev;
1312 ret = hdac_hdmi_add_ports(hdmi, pin);
1313 if (ret < 0)
1314 return ret;
1315
1316 list_add_tail(&pin->head, &hdmi->pin_list);
1317 hdmi->num_pin++;
1318 hdmi->num_ports += pin->num_ports;
1319
1320 return 0;
1321 }
1322
1323 #define INTEL_VENDOR_NID 0x08
1324 #define INTEL_GET_VENDOR_VERB 0xf81
1325 #define INTEL_SET_VENDOR_VERB 0x781
1326 #define INTEL_EN_DP12 0x02 /* enable DP 1.2 features */
1327 #define INTEL_EN_ALL_PIN_CVTS 0x01 /* enable 2nd & 3rd pins and convertors */
1328
1329 static void hdac_hdmi_skl_enable_all_pins(struct hdac_device *hdac)
1330 {
1331 unsigned int vendor_param;
1332
1333 vendor_param = snd_hdac_codec_read(hdac, INTEL_VENDOR_NID, 0,
1334 INTEL_GET_VENDOR_VERB, 0);
1335 if (vendor_param == -1 || vendor_param & INTEL_EN_ALL_PIN_CVTS)
1336 return;
1337
1338 vendor_param |= INTEL_EN_ALL_PIN_CVTS;
1339 vendor_param = snd_hdac_codec_read(hdac, INTEL_VENDOR_NID, 0,
1340 INTEL_SET_VENDOR_VERB, vendor_param);
1341 if (vendor_param == -1)
1342 return;
1343 }
1344
1345 static void hdac_hdmi_skl_enable_dp12(struct hdac_device *hdac)
1346 {
1347 unsigned int vendor_param;
1348
1349 vendor_param = snd_hdac_codec_read(hdac, INTEL_VENDOR_NID, 0,
1350 INTEL_GET_VENDOR_VERB, 0);
1351 if (vendor_param == -1 || vendor_param & INTEL_EN_DP12)
1352 return;
1353
1354 /* enable DP1.2 mode */
1355 vendor_param |= INTEL_EN_DP12;
1356 vendor_param = snd_hdac_codec_read(hdac, INTEL_VENDOR_NID, 0,
1357 INTEL_SET_VENDOR_VERB, vendor_param);
1358 if (vendor_param == -1)
1359 return;
1360
1361 }
1362
1363 static struct snd_soc_dai_ops hdmi_dai_ops = {
1364 .startup = hdac_hdmi_pcm_open,
1365 .shutdown = hdac_hdmi_pcm_close,
1366 .hw_params = hdac_hdmi_set_hw_params,
1367 .set_tdm_slot = hdac_hdmi_set_tdm_slot,
1368 };
1369
1370 /*
1371 * Each converter can support a stream independently. So a dai is created
1372 * based on the number of converter queried.
1373 */
1374 static int hdac_hdmi_create_dais(struct hdac_device *hdac,
1375 struct snd_soc_dai_driver **dais,
1376 struct hdac_hdmi_priv *hdmi, int num_dais)
1377 {
1378 struct snd_soc_dai_driver *hdmi_dais;
1379 struct hdac_hdmi_cvt *cvt;
1380 char name[NAME_SIZE], dai_name[NAME_SIZE];
1381 int i = 0;
1382 u32 rates, bps;
1383 unsigned int rate_max = 384000, rate_min = 8000;
1384 u64 formats;
1385 int ret;
1386
1387 hdmi_dais = devm_kzalloc(&hdac->dev,
1388 (sizeof(*hdmi_dais) * num_dais),
1389 GFP_KERNEL);
1390 if (!hdmi_dais)
1391 return -ENOMEM;
1392
1393 list_for_each_entry(cvt, &hdmi->cvt_list, head) {
1394 ret = snd_hdac_query_supported_pcm(hdac, cvt->nid,
1395 &rates, &formats, &bps);
1396 if (ret)
1397 return ret;
1398
1399 sprintf(dai_name, "intel-hdmi-hifi%d", i+1);
1400 hdmi_dais[i].name = devm_kstrdup(&hdac->dev,
1401 dai_name, GFP_KERNEL);
1402
1403 if (!hdmi_dais[i].name)
1404 return -ENOMEM;
1405
1406 snprintf(name, sizeof(name), "hifi%d", i+1);
1407 hdmi_dais[i].playback.stream_name =
1408 devm_kstrdup(&hdac->dev, name, GFP_KERNEL);
1409 if (!hdmi_dais[i].playback.stream_name)
1410 return -ENOMEM;
1411
1412 /*
1413 * Set caps based on capability queried from the converter.
1414 * It will be constrained runtime based on ELD queried.
1415 */
1416 hdmi_dais[i].playback.formats = formats;
1417 hdmi_dais[i].playback.rates = rates;
1418 hdmi_dais[i].playback.rate_max = rate_max;
1419 hdmi_dais[i].playback.rate_min = rate_min;
1420 hdmi_dais[i].playback.channels_min = 2;
1421 hdmi_dais[i].playback.channels_max = 2;
1422 hdmi_dais[i].ops = &hdmi_dai_ops;
1423
1424 i++;
1425 }
1426
1427 *dais = hdmi_dais;
1428
1429 return 0;
1430 }
1431
1432 /*
1433 * Parse all nodes and store the cvt/pin nids in array
1434 * Add one time initialization for pin and cvt widgets
1435 */
1436 static int hdac_hdmi_parse_and_map_nid(struct hdac_ext_device *edev,
1437 struct snd_soc_dai_driver **dais, int *num_dais)
1438 {
1439 hda_nid_t nid;
1440 int i, num_nodes;
1441 struct hdac_device *hdac = &edev->hdac;
1442 struct hdac_hdmi_priv *hdmi = edev->private_data;
1443 int ret;
1444
1445 hdac_hdmi_skl_enable_all_pins(hdac);
1446 hdac_hdmi_skl_enable_dp12(hdac);
1447
1448 num_nodes = snd_hdac_get_sub_nodes(hdac, hdac->afg, &nid);
1449 if (!nid || num_nodes <= 0) {
1450 dev_warn(&hdac->dev, "HDMI: failed to get afg sub nodes\n");
1451 return -EINVAL;
1452 }
1453
1454 hdac->num_nodes = num_nodes;
1455 hdac->start_nid = nid;
1456
1457 for (i = 0; i < hdac->num_nodes; i++, nid++) {
1458 unsigned int caps;
1459 unsigned int type;
1460
1461 caps = get_wcaps(hdac, nid);
1462 type = get_wcaps_type(caps);
1463
1464 if (!(caps & AC_WCAP_DIGITAL))
1465 continue;
1466
1467 switch (type) {
1468
1469 case AC_WID_AUD_OUT:
1470 ret = hdac_hdmi_add_cvt(edev, nid);
1471 if (ret < 0)
1472 return ret;
1473 break;
1474
1475 case AC_WID_PIN:
1476 ret = hdac_hdmi_add_pin(edev, nid);
1477 if (ret < 0)
1478 return ret;
1479 break;
1480 }
1481 }
1482
1483 hdac->end_nid = nid;
1484
1485 if (!hdmi->num_pin || !hdmi->num_cvt)
1486 return -EIO;
1487
1488 ret = hdac_hdmi_create_dais(hdac, dais, hdmi, hdmi->num_cvt);
1489 if (ret) {
1490 dev_err(&hdac->dev, "Failed to create dais with err: %d\n",
1491 ret);
1492 return ret;
1493 }
1494
1495 *num_dais = hdmi->num_cvt;
1496
1497 return hdac_hdmi_init_dai_map(edev);
1498 }
1499
1500 static void hdac_hdmi_eld_notify_cb(void *aptr, int port, int pipe)
1501 {
1502 struct hdac_ext_device *edev = aptr;
1503 struct hdac_hdmi_priv *hdmi = edev->private_data;
1504 struct hdac_hdmi_pin *pin = NULL;
1505 struct hdac_hdmi_port *hport = NULL;
1506 struct snd_soc_codec *codec = edev->scodec;
1507 int i;
1508
1509 /* Don't know how this mapping is derived */
1510 hda_nid_t pin_nid = port + 0x04;
1511
1512 dev_dbg(&edev->hdac.dev, "%s: for pin:%d port=%d\n", __func__,
1513 pin_nid, pipe);
1514
1515 /*
1516 * skip notification during system suspend (but not in runtime PM);
1517 * the state will be updated at resume. Also since the ELD and
1518 * connection states are updated in anyway at the end of the resume,
1519 * we can skip it when received during PM process.
1520 */
1521 if (snd_power_get_state(codec->component.card->snd_card) !=
1522 SNDRV_CTL_POWER_D0)
1523 return;
1524
1525 if (atomic_read(&edev->hdac.in_pm))
1526 return;
1527
1528 list_for_each_entry(pin, &hdmi->pin_list, head) {
1529 if (pin->nid != pin_nid)
1530 continue;
1531
1532 /* In case of non MST pin, pipe is -1 */
1533 if (pipe == -1) {
1534 pin->mst_capable = false;
1535 /* if not MST, default is port[0] */
1536 hport = &pin->ports[0];
1537 goto out;
1538 } else {
1539 for (i = 0; i < pin->num_ports; i++) {
1540 pin->mst_capable = true;
1541 if (pin->ports[i].id == pipe) {
1542 hport = &pin->ports[i];
1543 goto out;
1544 }
1545 }
1546 }
1547 }
1548
1549 out:
1550 if (pin && hport)
1551 hdac_hdmi_present_sense(pin, hport);
1552 }
1553
1554 static struct i915_audio_component_audio_ops aops = {
1555 .pin_eld_notify = hdac_hdmi_eld_notify_cb,
1556 };
1557
1558 static struct snd_pcm *hdac_hdmi_get_pcm_from_id(struct snd_soc_card *card,
1559 int device)
1560 {
1561 struct snd_soc_pcm_runtime *rtd;
1562
1563 list_for_each_entry(rtd, &card->rtd_list, list) {
1564 if (rtd->pcm && (rtd->pcm->device == device))
1565 return rtd->pcm;
1566 }
1567
1568 return NULL;
1569 }
1570
1571 /* create jack pin kcontrols */
1572 static int create_fill_jack_kcontrols(struct snd_soc_card *card,
1573 struct hdac_ext_device *edev)
1574 {
1575 struct hdac_hdmi_pin *pin;
1576 struct snd_kcontrol_new *kc;
1577 char kc_name[NAME_SIZE], xname[NAME_SIZE];
1578 char *name;
1579 int i = 0, j;
1580 struct snd_soc_codec *codec = edev->scodec;
1581 struct hdac_hdmi_priv *hdmi = edev->private_data;
1582
1583 kc = devm_kcalloc(codec->dev, hdmi->num_ports,
1584 sizeof(*kc), GFP_KERNEL);
1585
1586 if (!kc)
1587 return -ENOMEM;
1588
1589 list_for_each_entry(pin, &hdmi->pin_list, head) {
1590 for (j = 0; j < pin->num_ports; j++) {
1591 snprintf(xname, sizeof(xname), "hif%d-%d Jack",
1592 pin->nid, pin->ports[j].id);
1593 name = devm_kstrdup(codec->dev, xname, GFP_KERNEL);
1594 if (!name)
1595 return -ENOMEM;
1596 snprintf(kc_name, sizeof(kc_name), "%s Switch", xname);
1597 kc[i].name = devm_kstrdup(codec->dev, kc_name,
1598 GFP_KERNEL);
1599 if (!kc[i].name)
1600 return -ENOMEM;
1601
1602 kc[i].private_value = (unsigned long)name;
1603 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1604 kc[i].access = 0;
1605 kc[i].info = snd_soc_dapm_info_pin_switch;
1606 kc[i].put = snd_soc_dapm_put_pin_switch;
1607 kc[i].get = snd_soc_dapm_get_pin_switch;
1608 i++;
1609 }
1610 }
1611
1612 return snd_soc_add_card_controls(card, kc, i);
1613 }
1614
1615 int hdac_hdmi_jack_port_init(struct snd_soc_codec *codec,
1616 struct snd_soc_dapm_context *dapm)
1617 {
1618 struct hdac_ext_device *edev = snd_soc_codec_get_drvdata(codec);
1619 struct hdac_hdmi_priv *hdmi = edev->private_data;
1620 struct hdac_hdmi_pin *pin;
1621 struct snd_soc_dapm_widget *widgets;
1622 struct snd_soc_dapm_route *route;
1623 char w_name[NAME_SIZE];
1624 int i = 0, j, ret;
1625
1626 widgets = devm_kcalloc(dapm->dev, hdmi->num_ports,
1627 sizeof(*widgets), GFP_KERNEL);
1628
1629 if (!widgets)
1630 return -ENOMEM;
1631
1632 route = devm_kcalloc(dapm->dev, hdmi->num_ports,
1633 sizeof(*route), GFP_KERNEL);
1634 if (!route)
1635 return -ENOMEM;
1636
1637 /* create Jack DAPM widget */
1638 list_for_each_entry(pin, &hdmi->pin_list, head) {
1639 for (j = 0; j < pin->num_ports; j++) {
1640 snprintf(w_name, sizeof(w_name), "hif%d-%d Jack",
1641 pin->nid, pin->ports[j].id);
1642
1643 ret = hdac_hdmi_fill_widget_info(dapm->dev, &widgets[i],
1644 snd_soc_dapm_spk, NULL,
1645 w_name, NULL, NULL, 0, NULL, 0);
1646 if (ret < 0)
1647 return ret;
1648
1649 pin->ports[j].jack_pin = widgets[i].name;
1650 pin->ports[j].dapm = dapm;
1651
1652 /* add to route from Jack widget to output */
1653 hdac_hdmi_fill_route(&route[i], pin->ports[j].jack_pin,
1654 NULL, pin->ports[j].output_pin, NULL);
1655
1656 i++;
1657 }
1658 }
1659
1660 /* Add Route from Jack widget to the output widget */
1661 ret = snd_soc_dapm_new_controls(dapm, widgets, hdmi->num_ports);
1662 if (ret < 0)
1663 return ret;
1664
1665 ret = snd_soc_dapm_add_routes(dapm, route, hdmi->num_ports);
1666 if (ret < 0)
1667 return ret;
1668
1669 ret = snd_soc_dapm_new_widgets(dapm->card);
1670 if (ret < 0)
1671 return ret;
1672
1673 /* Add Jack Pin switch Kcontrol */
1674 ret = create_fill_jack_kcontrols(dapm->card, edev);
1675
1676 if (ret < 0)
1677 return ret;
1678
1679 /* default set the Jack Pin switch to OFF */
1680 list_for_each_entry(pin, &hdmi->pin_list, head) {
1681 for (j = 0; j < pin->num_ports; j++)
1682 snd_soc_dapm_disable_pin(pin->ports[j].dapm,
1683 pin->ports[j].jack_pin);
1684 }
1685
1686 return 0;
1687 }
1688 EXPORT_SYMBOL_GPL(hdac_hdmi_jack_port_init);
1689
1690 int hdac_hdmi_jack_init(struct snd_soc_dai *dai, int device,
1691 struct snd_soc_jack *jack)
1692 {
1693 struct snd_soc_codec *codec = dai->codec;
1694 struct hdac_ext_device *edev = snd_soc_codec_get_drvdata(codec);
1695 struct hdac_hdmi_priv *hdmi = edev->private_data;
1696 struct hdac_hdmi_pcm *pcm;
1697 struct snd_pcm *snd_pcm;
1698 int err;
1699
1700 /*
1701 * this is a new PCM device, create new pcm and
1702 * add to the pcm list
1703 */
1704 pcm = kzalloc(sizeof(*pcm), GFP_KERNEL);
1705 if (!pcm)
1706 return -ENOMEM;
1707 pcm->pcm_id = device;
1708 pcm->cvt = hdmi->dai_map[dai->id].cvt;
1709 pcm->jack_event = 0;
1710 pcm->jack = jack;
1711 mutex_init(&pcm->lock);
1712 INIT_LIST_HEAD(&pcm->port_list);
1713 snd_pcm = hdac_hdmi_get_pcm_from_id(dai->component->card, device);
1714 if (snd_pcm) {
1715 err = snd_hdac_add_chmap_ctls(snd_pcm, device, &hdmi->chmap);
1716 if (err < 0) {
1717 dev_err(&edev->hdac.dev,
1718 "chmap control add failed with err: %d for pcm: %d\n",
1719 err, device);
1720 kfree(pcm);
1721 return err;
1722 }
1723 }
1724
1725 list_add_tail(&pcm->head, &hdmi->pcm_list);
1726
1727 return 0;
1728 }
1729 EXPORT_SYMBOL_GPL(hdac_hdmi_jack_init);
1730
1731 static void hdac_hdmi_present_sense_all_pins(struct hdac_ext_device *edev,
1732 struct hdac_hdmi_priv *hdmi, bool detect_pin_caps)
1733 {
1734 int i;
1735 struct hdac_hdmi_pin *pin;
1736
1737 list_for_each_entry(pin, &hdmi->pin_list, head) {
1738 if (detect_pin_caps) {
1739
1740 if (hdac_hdmi_get_port_len(edev, pin->nid) == 0)
1741 pin->mst_capable = false;
1742 else
1743 pin->mst_capable = true;
1744 }
1745
1746 for (i = 0; i < pin->num_ports; i++) {
1747 if (!pin->mst_capable && i > 0)
1748 continue;
1749
1750 hdac_hdmi_present_sense(pin, &pin->ports[i]);
1751 }
1752 }
1753 }
1754
1755 static int hdmi_codec_probe(struct snd_soc_codec *codec)
1756 {
1757 struct hdac_ext_device *edev = snd_soc_codec_get_drvdata(codec);
1758 struct hdac_hdmi_priv *hdmi = edev->private_data;
1759 struct snd_soc_dapm_context *dapm =
1760 snd_soc_component_get_dapm(&codec->component);
1761 struct hdac_ext_link *hlink = NULL;
1762 int ret;
1763
1764 edev->scodec = codec;
1765
1766 /*
1767 * hold the ref while we probe, also no need to drop the ref on
1768 * exit, we call pm_runtime_suspend() so that will do for us
1769 */
1770 hlink = snd_hdac_ext_bus_get_link(edev->ebus, dev_name(&edev->hdac.dev));
1771 if (!hlink) {
1772 dev_err(&edev->hdac.dev, "hdac link not found\n");
1773 return -EIO;
1774 }
1775
1776 snd_hdac_ext_bus_link_get(edev->ebus, hlink);
1777
1778 ret = create_fill_widget_route_map(dapm);
1779 if (ret < 0)
1780 return ret;
1781
1782 aops.audio_ptr = edev;
1783 ret = snd_hdac_i915_register_notifier(&aops);
1784 if (ret < 0) {
1785 dev_err(&edev->hdac.dev, "notifier register failed: err: %d\n",
1786 ret);
1787 return ret;
1788 }
1789
1790 hdac_hdmi_present_sense_all_pins(edev, hdmi, true);
1791 /* Imp: Store the card pointer in hda_codec */
1792 edev->card = dapm->card->snd_card;
1793
1794 /*
1795 * hdac_device core already sets the state to active and calls
1796 * get_noresume. So enable runtime and set the device to suspend.
1797 */
1798 pm_runtime_enable(&edev->hdac.dev);
1799 pm_runtime_put(&edev->hdac.dev);
1800 pm_runtime_suspend(&edev->hdac.dev);
1801
1802 return 0;
1803 }
1804
1805 static int hdmi_codec_remove(struct snd_soc_codec *codec)
1806 {
1807 struct hdac_ext_device *edev = snd_soc_codec_get_drvdata(codec);
1808
1809 pm_runtime_disable(&edev->hdac.dev);
1810 return 0;
1811 }
1812
1813 #ifdef CONFIG_PM
1814 static int hdmi_codec_prepare(struct device *dev)
1815 {
1816 struct hdac_ext_device *edev = to_hda_ext_device(dev);
1817 struct hdac_device *hdac = &edev->hdac;
1818
1819 pm_runtime_get_sync(&edev->hdac.dev);
1820
1821 /*
1822 * Power down afg.
1823 * codec_read is preferred over codec_write to set the power state.
1824 * This way verb is send to set the power state and response
1825 * is received. So setting power state is ensured without using loop
1826 * to read the state.
1827 */
1828 snd_hdac_codec_read(hdac, hdac->afg, 0, AC_VERB_SET_POWER_STATE,
1829 AC_PWRST_D3);
1830
1831 return 0;
1832 }
1833
1834 static void hdmi_codec_complete(struct device *dev)
1835 {
1836 struct hdac_ext_device *edev = to_hda_ext_device(dev);
1837 struct hdac_hdmi_priv *hdmi = edev->private_data;
1838 struct hdac_device *hdac = &edev->hdac;
1839
1840 /* Power up afg */
1841 snd_hdac_codec_read(hdac, hdac->afg, 0, AC_VERB_SET_POWER_STATE,
1842 AC_PWRST_D0);
1843
1844 hdac_hdmi_skl_enable_all_pins(&edev->hdac);
1845 hdac_hdmi_skl_enable_dp12(&edev->hdac);
1846
1847 /*
1848 * As the ELD notify callback request is not entertained while the
1849 * device is in suspend state. Need to manually check detection of
1850 * all pins here. pin capablity change is not support, so use the
1851 * already set pin caps.
1852 */
1853 hdac_hdmi_present_sense_all_pins(edev, hdmi, false);
1854
1855 pm_runtime_put_sync(&edev->hdac.dev);
1856 }
1857 #else
1858 #define hdmi_codec_prepare NULL
1859 #define hdmi_codec_complete NULL
1860 #endif
1861
1862 static struct snd_soc_codec_driver hdmi_hda_codec = {
1863 .probe = hdmi_codec_probe,
1864 .remove = hdmi_codec_remove,
1865 .idle_bias_off = true,
1866 };
1867
1868 static void hdac_hdmi_get_chmap(struct hdac_device *hdac, int pcm_idx,
1869 unsigned char *chmap)
1870 {
1871 struct hdac_ext_device *edev = to_ehdac_device(hdac);
1872 struct hdac_hdmi_priv *hdmi = edev->private_data;
1873 struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
1874
1875 memcpy(chmap, pcm->chmap, ARRAY_SIZE(pcm->chmap));
1876 }
1877
1878 static void hdac_hdmi_set_chmap(struct hdac_device *hdac, int pcm_idx,
1879 unsigned char *chmap, int prepared)
1880 {
1881 struct hdac_ext_device *edev = to_ehdac_device(hdac);
1882 struct hdac_hdmi_priv *hdmi = edev->private_data;
1883 struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
1884 struct hdac_hdmi_port *port;
1885
1886 if (list_empty(&pcm->port_list))
1887 return;
1888
1889 mutex_lock(&pcm->lock);
1890 pcm->chmap_set = true;
1891 memcpy(pcm->chmap, chmap, ARRAY_SIZE(pcm->chmap));
1892 list_for_each_entry(port, &pcm->port_list, head)
1893 if (prepared)
1894 hdac_hdmi_setup_audio_infoframe(edev, pcm, port);
1895 mutex_unlock(&pcm->lock);
1896 }
1897
1898 static bool is_hdac_hdmi_pcm_attached(struct hdac_device *hdac, int pcm_idx)
1899 {
1900 struct hdac_ext_device *edev = to_ehdac_device(hdac);
1901 struct hdac_hdmi_priv *hdmi = edev->private_data;
1902 struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
1903
1904 if (list_empty(&pcm->port_list))
1905 return false;
1906
1907 return true;
1908 }
1909
1910 static int hdac_hdmi_get_spk_alloc(struct hdac_device *hdac, int pcm_idx)
1911 {
1912 struct hdac_ext_device *edev = to_ehdac_device(hdac);
1913 struct hdac_hdmi_priv *hdmi = edev->private_data;
1914 struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
1915 struct hdac_hdmi_port *port;
1916
1917 if (list_empty(&pcm->port_list))
1918 return 0;
1919
1920 port = list_first_entry(&pcm->port_list, struct hdac_hdmi_port, head);
1921
1922 if (!port)
1923 return 0;
1924
1925 if (!port || !port->eld.eld_valid)
1926 return 0;
1927
1928 return port->eld.info.spk_alloc;
1929 }
1930
1931 static int hdac_hdmi_dev_probe(struct hdac_ext_device *edev)
1932 {
1933 struct hdac_device *codec = &edev->hdac;
1934 struct hdac_hdmi_priv *hdmi_priv;
1935 struct snd_soc_dai_driver *hdmi_dais = NULL;
1936 struct hdac_ext_link *hlink = NULL;
1937 int num_dais = 0;
1938 int ret = 0;
1939
1940 /* hold the ref while we probe */
1941 hlink = snd_hdac_ext_bus_get_link(edev->ebus, dev_name(&edev->hdac.dev));
1942 if (!hlink) {
1943 dev_err(&edev->hdac.dev, "hdac link not found\n");
1944 return -EIO;
1945 }
1946
1947 snd_hdac_ext_bus_link_get(edev->ebus, hlink);
1948
1949 hdmi_priv = devm_kzalloc(&codec->dev, sizeof(*hdmi_priv), GFP_KERNEL);
1950 if (hdmi_priv == NULL)
1951 return -ENOMEM;
1952
1953 edev->private_data = hdmi_priv;
1954 snd_hdac_register_chmap_ops(codec, &hdmi_priv->chmap);
1955 hdmi_priv->chmap.ops.get_chmap = hdac_hdmi_get_chmap;
1956 hdmi_priv->chmap.ops.set_chmap = hdac_hdmi_set_chmap;
1957 hdmi_priv->chmap.ops.is_pcm_attached = is_hdac_hdmi_pcm_attached;
1958 hdmi_priv->chmap.ops.get_spk_alloc = hdac_hdmi_get_spk_alloc;
1959
1960 dev_set_drvdata(&codec->dev, edev);
1961
1962 INIT_LIST_HEAD(&hdmi_priv->pin_list);
1963 INIT_LIST_HEAD(&hdmi_priv->cvt_list);
1964 INIT_LIST_HEAD(&hdmi_priv->pcm_list);
1965 mutex_init(&hdmi_priv->pin_mutex);
1966
1967 /*
1968 * Turned off in the runtime_suspend during the first explicit
1969 * pm_runtime_suspend call.
1970 */
1971 ret = snd_hdac_display_power(edev->hdac.bus, true);
1972 if (ret < 0) {
1973 dev_err(&edev->hdac.dev,
1974 "Cannot turn on display power on i915 err: %d\n",
1975 ret);
1976 return ret;
1977 }
1978
1979 ret = hdac_hdmi_parse_and_map_nid(edev, &hdmi_dais, &num_dais);
1980 if (ret < 0) {
1981 dev_err(&codec->dev,
1982 "Failed in parse and map nid with err: %d\n", ret);
1983 return ret;
1984 }
1985
1986 /* ASoC specific initialization */
1987 ret = snd_soc_register_codec(&codec->dev, &hdmi_hda_codec,
1988 hdmi_dais, num_dais);
1989
1990 snd_hdac_ext_bus_link_put(edev->ebus, hlink);
1991
1992 return ret;
1993 }
1994
1995 static int hdac_hdmi_dev_remove(struct hdac_ext_device *edev)
1996 {
1997 struct hdac_hdmi_priv *hdmi = edev->private_data;
1998 struct hdac_hdmi_pin *pin, *pin_next;
1999 struct hdac_hdmi_cvt *cvt, *cvt_next;
2000 struct hdac_hdmi_pcm *pcm, *pcm_next;
2001 struct hdac_hdmi_port *port;
2002 int i;
2003
2004 snd_soc_unregister_codec(&edev->hdac.dev);
2005
2006 list_for_each_entry_safe(pcm, pcm_next, &hdmi->pcm_list, head) {
2007 pcm->cvt = NULL;
2008 if (list_empty(&pcm->port_list))
2009 continue;
2010
2011 list_for_each_entry(port, &pcm->port_list, head)
2012 port = NULL;
2013
2014 list_del(&pcm->head);
2015 kfree(pcm);
2016 }
2017
2018 list_for_each_entry_safe(cvt, cvt_next, &hdmi->cvt_list, head) {
2019 list_del(&cvt->head);
2020 kfree(cvt->name);
2021 kfree(cvt);
2022 }
2023
2024 list_for_each_entry_safe(pin, pin_next, &hdmi->pin_list, head) {
2025 for (i = 0; i < pin->num_ports; i++)
2026 pin->ports[i].pin = NULL;
2027 kfree(pin->ports);
2028 list_del(&pin->head);
2029 kfree(pin);
2030 }
2031
2032 return 0;
2033 }
2034
2035 #ifdef CONFIG_PM
2036 static int hdac_hdmi_runtime_suspend(struct device *dev)
2037 {
2038 struct hdac_ext_device *edev = to_hda_ext_device(dev);
2039 struct hdac_device *hdac = &edev->hdac;
2040 struct hdac_bus *bus = hdac->bus;
2041 struct hdac_ext_bus *ebus = hbus_to_ebus(bus);
2042 struct hdac_ext_link *hlink = NULL;
2043 int err;
2044
2045 dev_dbg(dev, "Enter: %s\n", __func__);
2046
2047 /* controller may not have been initialized for the first time */
2048 if (!bus)
2049 return 0;
2050
2051 /*
2052 * Power down afg.
2053 * codec_read is preferred over codec_write to set the power state.
2054 * This way verb is send to set the power state and response
2055 * is received. So setting power state is ensured without using loop
2056 * to read the state.
2057 */
2058 snd_hdac_codec_read(hdac, hdac->afg, 0, AC_VERB_SET_POWER_STATE,
2059 AC_PWRST_D3);
2060 err = snd_hdac_display_power(bus, false);
2061 if (err < 0) {
2062 dev_err(bus->dev, "Cannot turn on display power on i915\n");
2063 return err;
2064 }
2065
2066 hlink = snd_hdac_ext_bus_get_link(ebus, dev_name(dev));
2067 if (!hlink) {
2068 dev_err(dev, "hdac link not found\n");
2069 return -EIO;
2070 }
2071
2072 snd_hdac_ext_bus_link_put(ebus, hlink);
2073
2074 return 0;
2075 }
2076
2077 static int hdac_hdmi_runtime_resume(struct device *dev)
2078 {
2079 struct hdac_ext_device *edev = to_hda_ext_device(dev);
2080 struct hdac_device *hdac = &edev->hdac;
2081 struct hdac_bus *bus = hdac->bus;
2082 struct hdac_ext_bus *ebus = hbus_to_ebus(bus);
2083 struct hdac_ext_link *hlink = NULL;
2084 int err;
2085
2086 dev_dbg(dev, "Enter: %s\n", __func__);
2087
2088 /* controller may not have been initialized for the first time */
2089 if (!bus)
2090 return 0;
2091
2092 hlink = snd_hdac_ext_bus_get_link(ebus, dev_name(dev));
2093 if (!hlink) {
2094 dev_err(dev, "hdac link not found\n");
2095 return -EIO;
2096 }
2097
2098 snd_hdac_ext_bus_link_get(ebus, hlink);
2099
2100 err = snd_hdac_display_power(bus, true);
2101 if (err < 0) {
2102 dev_err(bus->dev, "Cannot turn on display power on i915\n");
2103 return err;
2104 }
2105
2106 hdac_hdmi_skl_enable_all_pins(&edev->hdac);
2107 hdac_hdmi_skl_enable_dp12(&edev->hdac);
2108
2109 /* Power up afg */
2110 snd_hdac_codec_read(hdac, hdac->afg, 0, AC_VERB_SET_POWER_STATE,
2111 AC_PWRST_D0);
2112
2113 return 0;
2114 }
2115 #else
2116 #define hdac_hdmi_runtime_suspend NULL
2117 #define hdac_hdmi_runtime_resume NULL
2118 #endif
2119
2120 static const struct dev_pm_ops hdac_hdmi_pm = {
2121 SET_RUNTIME_PM_OPS(hdac_hdmi_runtime_suspend, hdac_hdmi_runtime_resume, NULL)
2122 .prepare = hdmi_codec_prepare,
2123 .complete = hdmi_codec_complete,
2124 };
2125
2126 static const struct hda_device_id hdmi_list[] = {
2127 HDA_CODEC_EXT_ENTRY(0x80862809, 0x100000, "Skylake HDMI", 0),
2128 HDA_CODEC_EXT_ENTRY(0x8086280a, 0x100000, "Broxton HDMI", 0),
2129 HDA_CODEC_EXT_ENTRY(0x8086280b, 0x100000, "Kabylake HDMI", 0),
2130 HDA_CODEC_EXT_ENTRY(0x8086280d, 0x100000, "Geminilake HDMI", 0),
2131 {}
2132 };
2133
2134 MODULE_DEVICE_TABLE(hdaudio, hdmi_list);
2135
2136 static struct hdac_ext_driver hdmi_driver = {
2137 . hdac = {
2138 .driver = {
2139 .name = "HDMI HDA Codec",
2140 .pm = &hdac_hdmi_pm,
2141 },
2142 .id_table = hdmi_list,
2143 },
2144 .probe = hdac_hdmi_dev_probe,
2145 .remove = hdac_hdmi_dev_remove,
2146 };
2147
2148 static int __init hdmi_init(void)
2149 {
2150 return snd_hda_ext_driver_register(&hdmi_driver);
2151 }
2152
2153 static void __exit hdmi_exit(void)
2154 {
2155 snd_hda_ext_driver_unregister(&hdmi_driver);
2156 }
2157
2158 module_init(hdmi_init);
2159 module_exit(hdmi_exit);
2160
2161 MODULE_LICENSE("GPL v2");
2162 MODULE_DESCRIPTION("HDMI HD codec");
2163 MODULE_AUTHOR("Samreen Nilofer<samreen.nilofer@intel.com>");
2164 MODULE_AUTHOR("Subhransu S. Prusty<subhransu.s.prusty@intel.com>");
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