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ACPI: EC: Rework flushing of pending work
[linux/fpc-iii.git] / sound / soc / codecs / hdac_hdmi.c
blob18c173e6a13b2867b2bb922a16e98a5680c07512
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * hdac_hdmi.c - ASoc HDA-HDMI codec driver for Intel platforms
4 *
5 * Copyright (C) 2014-2015 Intel Corp
6 * Author: Samreen Nilofer <samreen.nilofer@intel.com>
7 * Subhransu S. Prusty <subhransu.s.prusty@intel.com>
8 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
9 *
10 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
11 */
12 #include <linux/init.h>
13 #include <linux/delay.h>
14 #include <linux/module.h>
15 #include <linux/pm_runtime.h>
16 #include <linux/hdmi.h>
17 #include <drm/drm_edid.h>
18 #include <sound/pcm_params.h>
19 #include <sound/jack.h>
20 #include <sound/soc.h>
21 #include <sound/hdaudio_ext.h>
22 #include <sound/hda_i915.h>
23 #include <sound/pcm_drm_eld.h>
24 #include <sound/hda_chmap.h>
25 #include "../../hda/local.h"
26 #include "hdac_hdmi.h"
27
28 #define NAME_SIZE 32
29
30 #define AMP_OUT_MUTE 0xb080
31 #define AMP_OUT_UNMUTE 0xb000
32 #define PIN_OUT (AC_PINCTL_OUT_EN)
33
34 #define HDA_MAX_CONNECTIONS 32
35
36 #define HDA_MAX_CVTS 3
37 #define HDA_MAX_PORTS 3
38
39 #define ELD_MAX_SIZE 256
40 #define ELD_FIXED_BYTES 20
41
42 #define ELD_VER_CEA_861D 2
43 #define ELD_VER_PARTIAL 31
44 #define ELD_MAX_MNL 16
45
46 struct hdac_hdmi_cvt_params {
47 unsigned int channels_min;
48 unsigned int channels_max;
49 u32 rates;
50 u64 formats;
51 unsigned int maxbps;
52 };
53
54 struct hdac_hdmi_cvt {
55 struct list_head head;
56 hda_nid_t nid;
57 const char *name;
58 struct hdac_hdmi_cvt_params params;
59 };
60
61 /* Currently only spk_alloc, more to be added */
62 struct hdac_hdmi_parsed_eld {
63 u8 spk_alloc;
64 };
65
66 struct hdac_hdmi_eld {
67 bool monitor_present;
68 bool eld_valid;
69 int eld_size;
70 char eld_buffer[ELD_MAX_SIZE];
71 struct hdac_hdmi_parsed_eld info;
72 };
73
74 struct hdac_hdmi_pin {
75 struct list_head head;
76 hda_nid_t nid;
77 bool mst_capable;
78 struct hdac_hdmi_port *ports;
79 int num_ports;
80 struct hdac_device *hdev;
81 };
82
83 struct hdac_hdmi_port {
84 struct list_head head;
85 int id;
86 struct hdac_hdmi_pin *pin;
87 int num_mux_nids;
88 hda_nid_t mux_nids[HDA_MAX_CONNECTIONS];
89 struct hdac_hdmi_eld eld;
90 const char *jack_pin;
91 bool is_connect;
92 struct snd_soc_dapm_context *dapm;
93 const char *output_pin;
94 struct work_struct dapm_work;
95 };
96
97 struct hdac_hdmi_pcm {
98 struct list_head head;
99 int pcm_id;
100 struct list_head port_list;
101 struct hdac_hdmi_cvt *cvt;
102 struct snd_soc_jack *jack;
103 int stream_tag;
104 int channels;
105 int format;
106 bool chmap_set;
107 unsigned char chmap[8]; /* ALSA API channel-map */
108 struct mutex lock;
109 int jack_event;
110 };
111
112 struct hdac_hdmi_dai_port_map {
113 int dai_id;
114 struct hdac_hdmi_port *port;
115 struct hdac_hdmi_cvt *cvt;
116 };
117
118 /*
119 * pin to port mapping table where the value indicate the pin number and
120 * the index indicate the port number with 1 base.
121 */
122 static const int icl_pin2port_map[] = {0x4, 0x6, 0x8, 0xa, 0xb};
123
124 struct hdac_hdmi_drv_data {
125 unsigned int vendor_nid;
126 const int *port_map; /* pin to port mapping table */
127 int port_num;
128 };
129
130 struct hdac_hdmi_priv {
131 struct hdac_device *hdev;
132 struct snd_soc_component *component;
133 struct snd_card *card;
134 struct hdac_hdmi_dai_port_map dai_map[HDA_MAX_CVTS];
135 struct list_head pin_list;
136 struct list_head cvt_list;
137 struct list_head pcm_list;
138 int num_pin;
139 int num_cvt;
140 int num_ports;
141 struct mutex pin_mutex;
142 struct hdac_chmap chmap;
143 struct hdac_hdmi_drv_data *drv_data;
144 struct snd_soc_dai_driver *dai_drv;
145 };
146
147 #define hdev_to_hdmi_priv(_hdev) dev_get_drvdata(&(_hdev)->dev)
148
149 static struct hdac_hdmi_pcm *
150 hdac_hdmi_get_pcm_from_cvt(struct hdac_hdmi_priv *hdmi,
151 struct hdac_hdmi_cvt *cvt)
152 {
153 struct hdac_hdmi_pcm *pcm = NULL;
154
155 list_for_each_entry(pcm, &hdmi->pcm_list, head) {
156 if (pcm->cvt == cvt)
157 break;
158 }
159
160 return pcm;
161 }
162
163 static void hdac_hdmi_jack_report(struct hdac_hdmi_pcm *pcm,
164 struct hdac_hdmi_port *port, bool is_connect)
165 {
166 struct hdac_device *hdev = port->pin->hdev;
167
168 port->is_connect = is_connect;
169 if (is_connect) {
170 /*
171 * Report Jack connect event when a device is connected
172 * for the first time where same PCM is attached to multiple
173 * ports.
174 */
175 if (pcm->jack_event == 0) {
176 dev_dbg(&hdev->dev,
177 "jack report for pcm=%d\n",
178 pcm->pcm_id);
179 snd_soc_jack_report(pcm->jack, SND_JACK_AVOUT,
180 SND_JACK_AVOUT);
181 }
182 pcm->jack_event++;
183 } else {
184 /*
185 * Report Jack disconnect event when a device is disconnected
186 * is the only last connected device when same PCM is attached
187 * to multiple ports.
188 */
189 if (pcm->jack_event == 1)
190 snd_soc_jack_report(pcm->jack, 0, SND_JACK_AVOUT);
191 if (pcm->jack_event > 0)
192 pcm->jack_event--;
193 }
194 }
195
196 static void hdac_hdmi_port_dapm_update(struct hdac_hdmi_port *port)
197 {
198 if (port->is_connect)
199 snd_soc_dapm_enable_pin(port->dapm, port->jack_pin);
200 else
201 snd_soc_dapm_disable_pin(port->dapm, port->jack_pin);
202 snd_soc_dapm_sync(port->dapm);
203 }
204
205 static void hdac_hdmi_jack_dapm_work(struct work_struct *work)
206 {
207 struct hdac_hdmi_port *port;
208
209 port = container_of(work, struct hdac_hdmi_port, dapm_work);
210 hdac_hdmi_port_dapm_update(port);
211 }
212
213 static void hdac_hdmi_jack_report_sync(struct hdac_hdmi_pcm *pcm,
214 struct hdac_hdmi_port *port, bool is_connect)
215 {
216 hdac_hdmi_jack_report(pcm, port, is_connect);
217 hdac_hdmi_port_dapm_update(port);
218 }
219
220 /* MST supported verbs */
221 /*
222 * Get the no devices that can be connected to a port on the Pin widget.
223 */
224 static int hdac_hdmi_get_port_len(struct hdac_device *hdev, hda_nid_t nid)
225 {
226 unsigned int caps;
227 unsigned int type, param;
228
229 caps = get_wcaps(hdev, nid);
230 type = get_wcaps_type(caps);
231
232 if (!(caps & AC_WCAP_DIGITAL) || (type != AC_WID_PIN))
233 return 0;
234
235 param = snd_hdac_read_parm_uncached(hdev, nid, AC_PAR_DEVLIST_LEN);
236 if (param == -1)
237 return param;
238
239 return param & AC_DEV_LIST_LEN_MASK;
240 }
241
242 /*
243 * Get the port entry select on the pin. Return the port entry
244 * id selected on the pin. Return 0 means the first port entry
245 * is selected or MST is not supported.
246 */
247 static int hdac_hdmi_port_select_get(struct hdac_device *hdev,
248 struct hdac_hdmi_port *port)
249 {
250 return snd_hdac_codec_read(hdev, port->pin->nid,
251 0, AC_VERB_GET_DEVICE_SEL, 0);
252 }
253
254 /*
255 * Sets the selected port entry for the configuring Pin widget verb.
256 * returns error if port set is not equal to port get otherwise success
257 */
258 static int hdac_hdmi_port_select_set(struct hdac_device *hdev,
259 struct hdac_hdmi_port *port)
260 {
261 int num_ports;
262
263 if (!port->pin->mst_capable)
264 return 0;
265
266 /* AC_PAR_DEVLIST_LEN is 0 based. */
267 num_ports = hdac_hdmi_get_port_len(hdev, port->pin->nid);
268 if (num_ports < 0)
269 return -EIO;
270 /*
271 * Device List Length is a 0 based integer value indicating the
272 * number of sink device that a MST Pin Widget can support.
273 */
274 if (num_ports + 1 < port->id)
275 return 0;
276
277 snd_hdac_codec_write(hdev, port->pin->nid, 0,
278 AC_VERB_SET_DEVICE_SEL, port->id);
279
280 if (port->id != hdac_hdmi_port_select_get(hdev, port))
281 return -EIO;
282
283 dev_dbg(&hdev->dev, "Selected the port=%d\n", port->id);
284
285 return 0;
286 }
287
288 static struct hdac_hdmi_pcm *get_hdmi_pcm_from_id(struct hdac_hdmi_priv *hdmi,
289 int pcm_idx)
290 {
291 struct hdac_hdmi_pcm *pcm;
292
293 list_for_each_entry(pcm, &hdmi->pcm_list, head) {
294 if (pcm->pcm_id == pcm_idx)
295 return pcm;
296 }
297
298 return NULL;
299 }
300
301 static unsigned int sad_format(const u8 *sad)
302 {
303 return ((sad[0] >> 0x3) & 0x1f);
304 }
305
306 static unsigned int sad_sample_bits_lpcm(const u8 *sad)
307 {
308 return (sad[2] & 7);
309 }
310
311 static int hdac_hdmi_eld_limit_formats(struct snd_pcm_runtime *runtime,
312 void *eld)
313 {
314 u64 formats = SNDRV_PCM_FMTBIT_S16;
315 int i;
316 const u8 *sad, *eld_buf = eld;
317
318 sad = drm_eld_sad(eld_buf);
319 if (!sad)
320 goto format_constraint;
321
322 for (i = drm_eld_sad_count(eld_buf); i > 0; i--, sad += 3) {
323 if (sad_format(sad) == 1) { /* AUDIO_CODING_TYPE_LPCM */
324
325 /*
326 * the controller support 20 and 24 bits in 32 bit
327 * container so we set S32
328 */
329 if (sad_sample_bits_lpcm(sad) & 0x6)
330 formats |= SNDRV_PCM_FMTBIT_S32;
331 }
332 }
333
334 format_constraint:
335 return snd_pcm_hw_constraint_mask64(runtime, SNDRV_PCM_HW_PARAM_FORMAT,
336 formats);
337
338 }
339
340 static void
341 hdac_hdmi_set_dip_index(struct hdac_device *hdev, hda_nid_t pin_nid,
342 int packet_index, int byte_index)
343 {
344 int val;
345
346 val = (packet_index << 5) | (byte_index & 0x1f);
347 snd_hdac_codec_write(hdev, pin_nid, 0, AC_VERB_SET_HDMI_DIP_INDEX, val);
348 }
349
350 struct dp_audio_infoframe {
351 u8 type; /* 0x84 */
352 u8 len; /* 0x1b */
353 u8 ver; /* 0x11 << 2 */
354
355 u8 CC02_CT47; /* match with HDMI infoframe from this on */
356 u8 SS01_SF24;
357 u8 CXT04;
358 u8 CA;
359 u8 LFEPBL01_LSV36_DM_INH7;
360 };
361
362 static int hdac_hdmi_setup_audio_infoframe(struct hdac_device *hdev,
363 struct hdac_hdmi_pcm *pcm, struct hdac_hdmi_port *port)
364 {
365 uint8_t buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_AUDIO_INFOFRAME_SIZE];
366 struct hdmi_audio_infoframe frame;
367 struct hdac_hdmi_pin *pin = port->pin;
368 struct dp_audio_infoframe dp_ai;
369 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
370 struct hdac_hdmi_cvt *cvt = pcm->cvt;
371 u8 *dip;
372 int ret;
373 int i;
374 const u8 *eld_buf;
375 u8 conn_type;
376 int channels, ca;
377
378 ca = snd_hdac_channel_allocation(hdev, port->eld.info.spk_alloc,
379 pcm->channels, pcm->chmap_set, true, pcm->chmap);
380
381 channels = snd_hdac_get_active_channels(ca);
382 hdmi->chmap.ops.set_channel_count(hdev, cvt->nid, channels);
383
384 snd_hdac_setup_channel_mapping(&hdmi->chmap, pin->nid, false, ca,
385 pcm->channels, pcm->chmap, pcm->chmap_set);
386
387 eld_buf = port->eld.eld_buffer;
388 conn_type = drm_eld_get_conn_type(eld_buf);
389
390 switch (conn_type) {
391 case DRM_ELD_CONN_TYPE_HDMI:
392 hdmi_audio_infoframe_init(&frame);
393
394 frame.channels = channels;
395 frame.channel_allocation = ca;
396
397 ret = hdmi_audio_infoframe_pack(&frame, buffer, sizeof(buffer));
398 if (ret < 0)
399 return ret;
400
401 break;
402
403 case DRM_ELD_CONN_TYPE_DP:
404 memset(&dp_ai, 0, sizeof(dp_ai));
405 dp_ai.type = 0x84;
406 dp_ai.len = 0x1b;
407 dp_ai.ver = 0x11 << 2;
408 dp_ai.CC02_CT47 = channels - 1;
409 dp_ai.CA = ca;
410
411 dip = (u8 *)&dp_ai;
412 break;
413
414 default:
415 dev_err(&hdev->dev, "Invalid connection type: %d\n", conn_type);
416 return -EIO;
417 }
418
419 /* stop infoframe transmission */
420 hdac_hdmi_set_dip_index(hdev, pin->nid, 0x0, 0x0);
421 snd_hdac_codec_write(hdev, pin->nid, 0,
422 AC_VERB_SET_HDMI_DIP_XMIT, AC_DIPXMIT_DISABLE);
423
424
425 /* Fill infoframe. Index auto-incremented */
426 hdac_hdmi_set_dip_index(hdev, pin->nid, 0x0, 0x0);
427 if (conn_type == DRM_ELD_CONN_TYPE_HDMI) {
428 for (i = 0; i < sizeof(buffer); i++)
429 snd_hdac_codec_write(hdev, pin->nid, 0,
430 AC_VERB_SET_HDMI_DIP_DATA, buffer[i]);
431 } else {
432 for (i = 0; i < sizeof(dp_ai); i++)
433 snd_hdac_codec_write(hdev, pin->nid, 0,
434 AC_VERB_SET_HDMI_DIP_DATA, dip[i]);
435 }
436
437 /* Start infoframe */
438 hdac_hdmi_set_dip_index(hdev, pin->nid, 0x0, 0x0);
439 snd_hdac_codec_write(hdev, pin->nid, 0,
440 AC_VERB_SET_HDMI_DIP_XMIT, AC_DIPXMIT_BEST);
441
442 return 0;
443 }
444
445 static int hdac_hdmi_set_tdm_slot(struct snd_soc_dai *dai,
446 unsigned int tx_mask, unsigned int rx_mask,
447 int slots, int slot_width)
448 {
449 struct hdac_hdmi_priv *hdmi = snd_soc_dai_get_drvdata(dai);
450 struct hdac_device *hdev = hdmi->hdev;
451 struct hdac_hdmi_dai_port_map *dai_map;
452 struct hdac_hdmi_pcm *pcm;
453
454 dev_dbg(&hdev->dev, "%s: strm_tag: %d\n", __func__, tx_mask);
455
456 dai_map = &hdmi->dai_map[dai->id];
457
458 pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, dai_map->cvt);
459
460 if (pcm)
461 pcm->stream_tag = (tx_mask << 4);
462
463 return 0;
464 }
465
466 static int hdac_hdmi_set_hw_params(struct snd_pcm_substream *substream,
467 struct snd_pcm_hw_params *hparams, struct snd_soc_dai *dai)
468 {
469 struct hdac_hdmi_priv *hdmi = snd_soc_dai_get_drvdata(dai);
470 struct hdac_hdmi_dai_port_map *dai_map;
471 struct hdac_hdmi_pcm *pcm;
472 int format;
473
474 dai_map = &hdmi->dai_map[dai->id];
475
476 format = snd_hdac_calc_stream_format(params_rate(hparams),
477 params_channels(hparams), params_format(hparams),
478 dai->driver->playback.sig_bits, 0);
479
480 pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, dai_map->cvt);
481 if (!pcm)
482 return -EIO;
483
484 pcm->format = format;
485 pcm->channels = params_channels(hparams);
486
487 return 0;
488 }
489
490 static int hdac_hdmi_query_port_connlist(struct hdac_device *hdev,
491 struct hdac_hdmi_pin *pin,
492 struct hdac_hdmi_port *port)
493 {
494 if (!(get_wcaps(hdev, pin->nid) & AC_WCAP_CONN_LIST)) {
495 dev_warn(&hdev->dev,
496 "HDMI: pin %d wcaps %#x does not support connection list\n",
497 pin->nid, get_wcaps(hdev, pin->nid));
498 return -EINVAL;
499 }
500
501 if (hdac_hdmi_port_select_set(hdev, port) < 0)
502 return -EIO;
503
504 port->num_mux_nids = snd_hdac_get_connections(hdev, pin->nid,
505 port->mux_nids, HDA_MAX_CONNECTIONS);
506 if (port->num_mux_nids == 0)
507 dev_warn(&hdev->dev,
508 "No connections found for pin:port %d:%d\n",
509 pin->nid, port->id);
510
511 dev_dbg(&hdev->dev, "num_mux_nids %d for pin:port %d:%d\n",
512 port->num_mux_nids, pin->nid, port->id);
513
514 return port->num_mux_nids;
515 }
516
517 /*
518 * Query pcm list and return port to which stream is routed.
519 *
520 * Also query connection list of the pin, to validate the cvt to port map.
521 *
522 * Same stream rendering to multiple ports simultaneously can be done
523 * possibly, but not supported for now in driver. So return the first port
524 * connected.
525 */
526 static struct hdac_hdmi_port *hdac_hdmi_get_port_from_cvt(
527 struct hdac_device *hdev,
528 struct hdac_hdmi_priv *hdmi,
529 struct hdac_hdmi_cvt *cvt)
530 {
531 struct hdac_hdmi_pcm *pcm;
532 struct hdac_hdmi_port *port = NULL;
533 int ret, i;
534
535 list_for_each_entry(pcm, &hdmi->pcm_list, head) {
536 if (pcm->cvt == cvt) {
537 if (list_empty(&pcm->port_list))
538 continue;
539
540 list_for_each_entry(port, &pcm->port_list, head) {
541 mutex_lock(&pcm->lock);
542 ret = hdac_hdmi_query_port_connlist(hdev,
543 port->pin, port);
544 mutex_unlock(&pcm->lock);
545 if (ret < 0)
546 continue;
547
548 for (i = 0; i < port->num_mux_nids; i++) {
549 if (port->mux_nids[i] == cvt->nid &&
550 port->eld.monitor_present &&
551 port->eld.eld_valid)
552 return port;
553 }
554 }
555 }
556 }
557
558 return NULL;
559 }
560
561 /*
562 * Go through all converters and ensure connection is set to
563 * the correct pin as set via kcontrols.
564 */
565 static void hdac_hdmi_verify_connect_sel_all_pins(struct hdac_device *hdev)
566 {
567 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
568 struct hdac_hdmi_port *port;
569 struct hdac_hdmi_cvt *cvt;
570 int cvt_idx = 0;
571
572 list_for_each_entry(cvt, &hdmi->cvt_list, head) {
573 port = hdac_hdmi_get_port_from_cvt(hdev, hdmi, cvt);
574 if (port && port->pin) {
575 snd_hdac_codec_write(hdev, port->pin->nid, 0,
576 AC_VERB_SET_CONNECT_SEL, cvt_idx);
577 dev_dbg(&hdev->dev, "%s: %s set connect %d -> %d\n",
578 __func__, cvt->name, port->pin->nid, cvt_idx);
579 }
580 ++cvt_idx;
581 }
582 }
583
584 /*
585 * This tries to get a valid pin and set the HW constraints based on the
586 * ELD. Even if a valid pin is not found return success so that device open
587 * doesn't fail.
588 */
589 static int hdac_hdmi_pcm_open(struct snd_pcm_substream *substream,
590 struct snd_soc_dai *dai)
591 {
592 struct hdac_hdmi_priv *hdmi = snd_soc_dai_get_drvdata(dai);
593 struct hdac_device *hdev = hdmi->hdev;
594 struct hdac_hdmi_dai_port_map *dai_map;
595 struct hdac_hdmi_cvt *cvt;
596 struct hdac_hdmi_port *port;
597 int ret;
598
599 dai_map = &hdmi->dai_map[dai->id];
600
601 cvt = dai_map->cvt;
602 port = hdac_hdmi_get_port_from_cvt(hdev, hdmi, cvt);
603
604 /*
605 * To make PA and other userland happy.
606 * userland scans devices so returning error does not help.
607 */
608 if (!port)
609 return 0;
610 if ((!port->eld.monitor_present) ||
611 (!port->eld.eld_valid)) {
612
613 dev_warn(&hdev->dev,
614 "Failed: present?:%d ELD valid?:%d pin:port: %d:%d\n",
615 port->eld.monitor_present, port->eld.eld_valid,
616 port->pin->nid, port->id);
617
618 return 0;
619 }
620
621 dai_map->port = port;
622
623 ret = hdac_hdmi_eld_limit_formats(substream->runtime,
624 port->eld.eld_buffer);
625 if (ret < 0)
626 return ret;
627
628 return snd_pcm_hw_constraint_eld(substream->runtime,
629 port->eld.eld_buffer);
630 }
631
632 static void hdac_hdmi_pcm_close(struct snd_pcm_substream *substream,
633 struct snd_soc_dai *dai)
634 {
635 struct hdac_hdmi_priv *hdmi = snd_soc_dai_get_drvdata(dai);
636 struct hdac_hdmi_dai_port_map *dai_map;
637 struct hdac_hdmi_pcm *pcm;
638
639 dai_map = &hdmi->dai_map[dai->id];
640
641 pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, dai_map->cvt);
642
643 if (pcm) {
644 mutex_lock(&pcm->lock);
645 pcm->chmap_set = false;
646 memset(pcm->chmap, 0, sizeof(pcm->chmap));
647 pcm->channels = 0;
648 mutex_unlock(&pcm->lock);
649 }
650
651 if (dai_map->port)
652 dai_map->port = NULL;
653 }
654
655 static int
656 hdac_hdmi_query_cvt_params(struct hdac_device *hdev, struct hdac_hdmi_cvt *cvt)
657 {
658 unsigned int chans;
659 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
660 int err;
661
662 chans = get_wcaps(hdev, cvt->nid);
663 chans = get_wcaps_channels(chans);
664
665 cvt->params.channels_min = 2;
666
667 cvt->params.channels_max = chans;
668 if (chans > hdmi->chmap.channels_max)
669 hdmi->chmap.channels_max = chans;
670
671 err = snd_hdac_query_supported_pcm(hdev, cvt->nid,
672 &cvt->params.rates,
673 &cvt->params.formats,
674 &cvt->params.maxbps);
675 if (err < 0)
676 dev_err(&hdev->dev,
677 "Failed to query pcm params for nid %d: %d\n",
678 cvt->nid, err);
679
680 return err;
681 }
682
683 static int hdac_hdmi_fill_widget_info(struct device *dev,
684 struct snd_soc_dapm_widget *w, enum snd_soc_dapm_type id,
685 void *priv, const char *wname, const char *stream,
686 struct snd_kcontrol_new *wc, int numkc,
687 int (*event)(struct snd_soc_dapm_widget *,
688 struct snd_kcontrol *, int), unsigned short event_flags)
689 {
690 w->id = id;
691 w->name = devm_kstrdup(dev, wname, GFP_KERNEL);
692 if (!w->name)
693 return -ENOMEM;
694
695 w->sname = stream;
696 w->reg = SND_SOC_NOPM;
697 w->shift = 0;
698 w->kcontrol_news = wc;
699 w->num_kcontrols = numkc;
700 w->priv = priv;
701 w->event = event;
702 w->event_flags = event_flags;
703
704 return 0;
705 }
706
707 static void hdac_hdmi_fill_route(struct snd_soc_dapm_route *route,
708 const char *sink, const char *control, const char *src,
709 int (*handler)(struct snd_soc_dapm_widget *src,
710 struct snd_soc_dapm_widget *sink))
711 {
712 route->sink = sink;
713 route->source = src;
714 route->control = control;
715 route->connected = handler;
716 }
717
718 static struct hdac_hdmi_pcm *hdac_hdmi_get_pcm(struct hdac_device *hdev,
719 struct hdac_hdmi_port *port)
720 {
721 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
722 struct hdac_hdmi_pcm *pcm = NULL;
723 struct hdac_hdmi_port *p;
724
725 list_for_each_entry(pcm, &hdmi->pcm_list, head) {
726 if (list_empty(&pcm->port_list))
727 continue;
728
729 list_for_each_entry(p, &pcm->port_list, head) {
730 if (p->id == port->id && port->pin == p->pin)
731 return pcm;
732 }
733 }
734
735 return NULL;
736 }
737
738 static void hdac_hdmi_set_power_state(struct hdac_device *hdev,
739 hda_nid_t nid, unsigned int pwr_state)
740 {
741 int count;
742 unsigned int state;
743
744 if (get_wcaps(hdev, nid) & AC_WCAP_POWER) {
745 if (!snd_hdac_check_power_state(hdev, nid, pwr_state)) {
746 for (count = 0; count < 10; count++) {
747 snd_hdac_codec_read(hdev, nid, 0,
748 AC_VERB_SET_POWER_STATE,
749 pwr_state);
750 state = snd_hdac_sync_power_state(hdev,
751 nid, pwr_state);
752 if (!(state & AC_PWRST_ERROR))
753 break;
754 }
755 }
756 }
757 }
758
759 static void hdac_hdmi_set_amp(struct hdac_device *hdev,
760 hda_nid_t nid, int val)
761 {
762 if (get_wcaps(hdev, nid) & AC_WCAP_OUT_AMP)
763 snd_hdac_codec_write(hdev, nid, 0,
764 AC_VERB_SET_AMP_GAIN_MUTE, val);
765 }
766
767
768 static int hdac_hdmi_pin_output_widget_event(struct snd_soc_dapm_widget *w,
769 struct snd_kcontrol *kc, int event)
770 {
771 struct hdac_hdmi_port *port = w->priv;
772 struct hdac_device *hdev = dev_to_hdac_dev(w->dapm->dev);
773 struct hdac_hdmi_pcm *pcm;
774
775 dev_dbg(&hdev->dev, "%s: widget: %s event: %x\n",
776 __func__, w->name, event);
777
778 pcm = hdac_hdmi_get_pcm(hdev, port);
779 if (!pcm)
780 return -EIO;
781
782 /* set the device if pin is mst_capable */
783 if (hdac_hdmi_port_select_set(hdev, port) < 0)
784 return -EIO;
785
786 switch (event) {
787 case SND_SOC_DAPM_PRE_PMU:
788 hdac_hdmi_set_power_state(hdev, port->pin->nid, AC_PWRST_D0);
789
790 /* Enable out path for this pin widget */
791 snd_hdac_codec_write(hdev, port->pin->nid, 0,
792 AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT);
793
794 hdac_hdmi_set_amp(hdev, port->pin->nid, AMP_OUT_UNMUTE);
795
796 return hdac_hdmi_setup_audio_infoframe(hdev, pcm, port);
797
798 case SND_SOC_DAPM_POST_PMD:
799 hdac_hdmi_set_amp(hdev, port->pin->nid, AMP_OUT_MUTE);
800
801 /* Disable out path for this pin widget */
802 snd_hdac_codec_write(hdev, port->pin->nid, 0,
803 AC_VERB_SET_PIN_WIDGET_CONTROL, 0);
804
805 hdac_hdmi_set_power_state(hdev, port->pin->nid, AC_PWRST_D3);
806 break;
807
808 }
809
810 return 0;
811 }
812
813 static int hdac_hdmi_cvt_output_widget_event(struct snd_soc_dapm_widget *w,
814 struct snd_kcontrol *kc, int event)
815 {
816 struct hdac_hdmi_cvt *cvt = w->priv;
817 struct hdac_device *hdev = dev_to_hdac_dev(w->dapm->dev);
818 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
819 struct hdac_hdmi_pcm *pcm;
820
821 dev_dbg(&hdev->dev, "%s: widget: %s event: %x\n",
822 __func__, w->name, event);
823
824 pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, cvt);
825 if (!pcm)
826 return -EIO;
827
828 switch (event) {
829 case SND_SOC_DAPM_PRE_PMU:
830 hdac_hdmi_set_power_state(hdev, cvt->nid, AC_PWRST_D0);
831
832 /* Enable transmission */
833 snd_hdac_codec_write(hdev, cvt->nid, 0,
834 AC_VERB_SET_DIGI_CONVERT_1, 1);
835
836 /* Category Code (CC) to zero */
837 snd_hdac_codec_write(hdev, cvt->nid, 0,
838 AC_VERB_SET_DIGI_CONVERT_2, 0);
839
840 snd_hdac_codec_write(hdev, cvt->nid, 0,
841 AC_VERB_SET_CHANNEL_STREAMID, pcm->stream_tag);
842 snd_hdac_codec_write(hdev, cvt->nid, 0,
843 AC_VERB_SET_STREAM_FORMAT, pcm->format);
844
845 /*
846 * The connection indices are shared by all converters and
847 * may interfere with each other. Ensure correct
848 * routing for all converters at stream start.
849 */
850 hdac_hdmi_verify_connect_sel_all_pins(hdev);
851
852 break;
853
854 case SND_SOC_DAPM_POST_PMD:
855 snd_hdac_codec_write(hdev, cvt->nid, 0,
856 AC_VERB_SET_CHANNEL_STREAMID, 0);
857 snd_hdac_codec_write(hdev, cvt->nid, 0,
858 AC_VERB_SET_STREAM_FORMAT, 0);
859
860 hdac_hdmi_set_power_state(hdev, cvt->nid, AC_PWRST_D3);
861 break;
862
863 }
864
865 return 0;
866 }
867
868 static int hdac_hdmi_pin_mux_widget_event(struct snd_soc_dapm_widget *w,
869 struct snd_kcontrol *kc, int event)
870 {
871 struct hdac_hdmi_port *port = w->priv;
872 struct hdac_device *hdev = dev_to_hdac_dev(w->dapm->dev);
873 int mux_idx;
874
875 dev_dbg(&hdev->dev, "%s: widget: %s event: %x\n",
876 __func__, w->name, event);
877
878 if (!kc)
879 kc = w->kcontrols[0];
880
881 mux_idx = dapm_kcontrol_get_value(kc);
882
883 /* set the device if pin is mst_capable */
884 if (hdac_hdmi_port_select_set(hdev, port) < 0)
885 return -EIO;
886
887 if (mux_idx > 0) {
888 snd_hdac_codec_write(hdev, port->pin->nid, 0,
889 AC_VERB_SET_CONNECT_SEL, (mux_idx - 1));
890 }
891
892 return 0;
893 }
894
895 /*
896 * Based on user selection, map the PINs with the PCMs.
897 */
898 static int hdac_hdmi_set_pin_port_mux(struct snd_kcontrol *kcontrol,
899 struct snd_ctl_elem_value *ucontrol)
900 {
901 int ret;
902 struct hdac_hdmi_port *p, *p_next;
903 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
904 struct snd_soc_dapm_widget *w = snd_soc_dapm_kcontrol_widget(kcontrol);
905 struct snd_soc_dapm_context *dapm = w->dapm;
906 struct hdac_hdmi_port *port = w->priv;
907 struct hdac_device *hdev = dev_to_hdac_dev(dapm->dev);
908 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
909 struct hdac_hdmi_pcm *pcm = NULL;
910 const char *cvt_name = e->texts[ucontrol->value.enumerated.item[0]];
911
912 ret = snd_soc_dapm_put_enum_double(kcontrol, ucontrol);
913 if (ret < 0)
914 return ret;
915
916 if (port == NULL)
917 return -EINVAL;
918
919 mutex_lock(&hdmi->pin_mutex);
920 list_for_each_entry(pcm, &hdmi->pcm_list, head) {
921 if (list_empty(&pcm->port_list))
922 continue;
923
924 list_for_each_entry_safe(p, p_next, &pcm->port_list, head) {
925 if (p == port && p->id == port->id &&
926 p->pin == port->pin) {
927 hdac_hdmi_jack_report_sync(pcm, port, false);
928 list_del(&p->head);
929 }
930 }
931 }
932
933 /*
934 * Jack status is not reported during device probe as the
935 * PCMs are not registered by then. So report it here.
936 */
937 list_for_each_entry(pcm, &hdmi->pcm_list, head) {
938 if (!strcmp(cvt_name, pcm->cvt->name)) {
939 list_add_tail(&port->head, &pcm->port_list);
940 if (port->eld.monitor_present && port->eld.eld_valid) {
941 hdac_hdmi_jack_report_sync(pcm, port, true);
942 mutex_unlock(&hdmi->pin_mutex);
943 return ret;
944 }
945 }
946 }
947 mutex_unlock(&hdmi->pin_mutex);
948
949 return ret;
950 }
951
952 /*
953 * Ideally the Mux inputs should be based on the num_muxs enumerated, but
954 * the display driver seem to be programming the connection list for the pin
955 * widget runtime.
956 *
957 * So programming all the possible inputs for the mux, the user has to take
958 * care of selecting the right one and leaving all other inputs selected to
959 * "NONE"
960 */
961 static int hdac_hdmi_create_pin_port_muxs(struct hdac_device *hdev,
962 struct hdac_hdmi_port *port,
963 struct snd_soc_dapm_widget *widget,
964 const char *widget_name)
965 {
966 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
967 struct hdac_hdmi_pin *pin = port->pin;
968 struct snd_kcontrol_new *kc;
969 struct hdac_hdmi_cvt *cvt;
970 struct soc_enum *se;
971 char kc_name[NAME_SIZE];
972 char mux_items[NAME_SIZE];
973 /* To hold inputs to the Pin mux */
974 char *items[HDA_MAX_CONNECTIONS];
975 int i = 0;
976 int num_items = hdmi->num_cvt + 1;
977
978 kc = devm_kzalloc(&hdev->dev, sizeof(*kc), GFP_KERNEL);
979 if (!kc)
980 return -ENOMEM;
981
982 se = devm_kzalloc(&hdev->dev, sizeof(*se), GFP_KERNEL);
983 if (!se)
984 return -ENOMEM;
985
986 snprintf(kc_name, NAME_SIZE, "Pin %d port %d Input",
987 pin->nid, port->id);
988 kc->name = devm_kstrdup(&hdev->dev, kc_name, GFP_KERNEL);
989 if (!kc->name)
990 return -ENOMEM;
991
992 kc->private_value = (long)se;
993 kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
994 kc->access = 0;
995 kc->info = snd_soc_info_enum_double;
996 kc->put = hdac_hdmi_set_pin_port_mux;
997 kc->get = snd_soc_dapm_get_enum_double;
998
999 se->reg = SND_SOC_NOPM;
1000
1001 /* enum texts: ["NONE", "cvt #", "cvt #", ...] */
1002 se->items = num_items;
1003 se->mask = roundup_pow_of_two(se->items) - 1;
1004
1005 sprintf(mux_items, "NONE");
1006 items[i] = devm_kstrdup(&hdev->dev, mux_items, GFP_KERNEL);
1007 if (!items[i])
1008 return -ENOMEM;
1009
1010 list_for_each_entry(cvt, &hdmi->cvt_list, head) {
1011 i++;
1012 sprintf(mux_items, "cvt %d", cvt->nid);
1013 items[i] = devm_kstrdup(&hdev->dev, mux_items, GFP_KERNEL);
1014 if (!items[i])
1015 return -ENOMEM;
1016 }
1017
1018 se->texts = devm_kmemdup(&hdev->dev, items,
1019 (num_items * sizeof(char *)), GFP_KERNEL);
1020 if (!se->texts)
1021 return -ENOMEM;
1022
1023 return hdac_hdmi_fill_widget_info(&hdev->dev, widget,
1024 snd_soc_dapm_mux, port, widget_name, NULL, kc, 1,
1025 hdac_hdmi_pin_mux_widget_event,
1026 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_REG);
1027 }
1028
1029 /* Add cvt <- input <- mux route map */
1030 static void hdac_hdmi_add_pinmux_cvt_route(struct hdac_device *hdev,
1031 struct snd_soc_dapm_widget *widgets,
1032 struct snd_soc_dapm_route *route, int rindex)
1033 {
1034 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1035 const struct snd_kcontrol_new *kc;
1036 struct soc_enum *se;
1037 int mux_index = hdmi->num_cvt + hdmi->num_ports;
1038 int i, j;
1039
1040 for (i = 0; i < hdmi->num_ports; i++) {
1041 kc = widgets[mux_index].kcontrol_news;
1042 se = (struct soc_enum *)kc->private_value;
1043 for (j = 0; j < hdmi->num_cvt; j++) {
1044 hdac_hdmi_fill_route(&route[rindex],
1045 widgets[mux_index].name,
1046 se->texts[j + 1],
1047 widgets[j].name, NULL);
1048
1049 rindex++;
1050 }
1051
1052 mux_index++;
1053 }
1054 }
1055
1056 /*
1057 * Widgets are added in the below sequence
1058 * Converter widgets for num converters enumerated
1059 * Pin-port widgets for num ports for Pins enumerated
1060 * Pin-port mux widgets to represent connenction list of pin widget
1061 *
1062 * For each port, one Mux and One output widget is added
1063 * Total widgets elements = num_cvt + (num_ports * 2);
1064 *
1065 * Routes are added as below:
1066 * pin-port mux -> pin (based on num_ports)
1067 * cvt -> "Input sel control" -> pin-port_mux
1068 *
1069 * Total route elements:
1070 * num_ports + (pin_muxes * num_cvt)
1071 */
1072 static int create_fill_widget_route_map(struct snd_soc_dapm_context *dapm)
1073 {
1074 struct snd_soc_dapm_widget *widgets;
1075 struct snd_soc_dapm_route *route;
1076 struct hdac_device *hdev = dev_to_hdac_dev(dapm->dev);
1077 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1078 struct snd_soc_dai_driver *dai_drv = hdmi->dai_drv;
1079 char widget_name[NAME_SIZE];
1080 struct hdac_hdmi_cvt *cvt;
1081 struct hdac_hdmi_pin *pin;
1082 int ret, i = 0, num_routes = 0, j;
1083
1084 if (list_empty(&hdmi->cvt_list) || list_empty(&hdmi->pin_list))
1085 return -EINVAL;
1086
1087 widgets = devm_kzalloc(dapm->dev, (sizeof(*widgets) *
1088 ((2 * hdmi->num_ports) + hdmi->num_cvt)),
1089 GFP_KERNEL);
1090
1091 if (!widgets)
1092 return -ENOMEM;
1093
1094 /* DAPM widgets to represent each converter widget */
1095 list_for_each_entry(cvt, &hdmi->cvt_list, head) {
1096 sprintf(widget_name, "Converter %d", cvt->nid);
1097 ret = hdac_hdmi_fill_widget_info(dapm->dev, &widgets[i],
1098 snd_soc_dapm_aif_in, cvt,
1099 widget_name, dai_drv[i].playback.stream_name, NULL, 0,
1100 hdac_hdmi_cvt_output_widget_event,
1101 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD);
1102 if (ret < 0)
1103 return ret;
1104 i++;
1105 }
1106
1107 list_for_each_entry(pin, &hdmi->pin_list, head) {
1108 for (j = 0; j < pin->num_ports; j++) {
1109 sprintf(widget_name, "hif%d-%d Output",
1110 pin->nid, pin->ports[j].id);
1111 ret = hdac_hdmi_fill_widget_info(dapm->dev, &widgets[i],
1112 snd_soc_dapm_output, &pin->ports[j],
1113 widget_name, NULL, NULL, 0,
1114 hdac_hdmi_pin_output_widget_event,
1115 SND_SOC_DAPM_PRE_PMU |
1116 SND_SOC_DAPM_POST_PMD);
1117 if (ret < 0)
1118 return ret;
1119 pin->ports[j].output_pin = widgets[i].name;
1120 i++;
1121 }
1122 }
1123
1124 /* DAPM widgets to represent the connection list to pin widget */
1125 list_for_each_entry(pin, &hdmi->pin_list, head) {
1126 for (j = 0; j < pin->num_ports; j++) {
1127 sprintf(widget_name, "Pin%d-Port%d Mux",
1128 pin->nid, pin->ports[j].id);
1129 ret = hdac_hdmi_create_pin_port_muxs(hdev,
1130 &pin->ports[j], &widgets[i],
1131 widget_name);
1132 if (ret < 0)
1133 return ret;
1134 i++;
1135
1136 /* For cvt to pin_mux mapping */
1137 num_routes += hdmi->num_cvt;
1138
1139 /* For pin_mux to pin mapping */
1140 num_routes++;
1141 }
1142 }
1143
1144 route = devm_kzalloc(dapm->dev, (sizeof(*route) * num_routes),
1145 GFP_KERNEL);
1146 if (!route)
1147 return -ENOMEM;
1148
1149 i = 0;
1150 /* Add pin <- NULL <- mux route map */
1151 list_for_each_entry(pin, &hdmi->pin_list, head) {
1152 for (j = 0; j < pin->num_ports; j++) {
1153 int sink_index = i + hdmi->num_cvt;
1154 int src_index = sink_index + pin->num_ports *
1155 hdmi->num_pin;
1156
1157 hdac_hdmi_fill_route(&route[i],
1158 widgets[sink_index].name, NULL,
1159 widgets[src_index].name, NULL);
1160 i++;
1161 }
1162 }
1163
1164 hdac_hdmi_add_pinmux_cvt_route(hdev, widgets, route, i);
1165
1166 snd_soc_dapm_new_controls(dapm, widgets,
1167 ((2 * hdmi->num_ports) + hdmi->num_cvt));
1168
1169 snd_soc_dapm_add_routes(dapm, route, num_routes);
1170 snd_soc_dapm_new_widgets(dapm->card);
1171
1172 return 0;
1173
1174 }
1175
1176 static int hdac_hdmi_init_dai_map(struct hdac_device *hdev)
1177 {
1178 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1179 struct hdac_hdmi_dai_port_map *dai_map;
1180 struct hdac_hdmi_cvt *cvt;
1181 int dai_id = 0;
1182
1183 if (list_empty(&hdmi->cvt_list))
1184 return -EINVAL;
1185
1186 list_for_each_entry(cvt, &hdmi->cvt_list, head) {
1187 dai_map = &hdmi->dai_map[dai_id];
1188 dai_map->dai_id = dai_id;
1189 dai_map->cvt = cvt;
1190
1191 dai_id++;
1192
1193 if (dai_id == HDA_MAX_CVTS) {
1194 dev_warn(&hdev->dev,
1195 "Max dais supported: %d\n", dai_id);
1196 break;
1197 }
1198 }
1199
1200 return 0;
1201 }
1202
1203 static int hdac_hdmi_add_cvt(struct hdac_device *hdev, hda_nid_t nid)
1204 {
1205 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1206 struct hdac_hdmi_cvt *cvt;
1207 char name[NAME_SIZE];
1208
1209 cvt = devm_kzalloc(&hdev->dev, sizeof(*cvt), GFP_KERNEL);
1210 if (!cvt)
1211 return -ENOMEM;
1212
1213 cvt->nid = nid;
1214 sprintf(name, "cvt %d", cvt->nid);
1215 cvt->name = devm_kstrdup(&hdev->dev, name, GFP_KERNEL);
1216 if (!cvt->name)
1217 return -ENOMEM;
1218
1219 list_add_tail(&cvt->head, &hdmi->cvt_list);
1220 hdmi->num_cvt++;
1221
1222 return hdac_hdmi_query_cvt_params(hdev, cvt);
1223 }
1224
1225 static int hdac_hdmi_parse_eld(struct hdac_device *hdev,
1226 struct hdac_hdmi_port *port)
1227 {
1228 unsigned int ver, mnl;
1229
1230 ver = (port->eld.eld_buffer[DRM_ELD_VER] & DRM_ELD_VER_MASK)
1231 >> DRM_ELD_VER_SHIFT;
1232
1233 if (ver != ELD_VER_CEA_861D && ver != ELD_VER_PARTIAL) {
1234 dev_err(&hdev->dev, "HDMI: Unknown ELD version %d\n", ver);
1235 return -EINVAL;
1236 }
1237
1238 mnl = (port->eld.eld_buffer[DRM_ELD_CEA_EDID_VER_MNL] &
1239 DRM_ELD_MNL_MASK) >> DRM_ELD_MNL_SHIFT;
1240
1241 if (mnl > ELD_MAX_MNL) {
1242 dev_err(&hdev->dev, "HDMI: MNL Invalid %d\n", mnl);
1243 return -EINVAL;
1244 }
1245
1246 port->eld.info.spk_alloc = port->eld.eld_buffer[DRM_ELD_SPEAKER];
1247
1248 return 0;
1249 }
1250
1251 static void hdac_hdmi_present_sense(struct hdac_hdmi_pin *pin,
1252 struct hdac_hdmi_port *port)
1253 {
1254 struct hdac_device *hdev = pin->hdev;
1255 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1256 struct hdac_hdmi_pcm *pcm;
1257 int size = 0;
1258 int port_id = -1;
1259
1260 if (!hdmi)
1261 return;
1262
1263 /*
1264 * In case of non MST pin, get_eld info API expectes port
1265 * to be -1.
1266 */
1267 mutex_lock(&hdmi->pin_mutex);
1268 port->eld.monitor_present = false;
1269
1270 if (pin->mst_capable)
1271 port_id = port->id;
1272
1273 size = snd_hdac_acomp_get_eld(hdev, pin->nid, port_id,
1274 &port->eld.monitor_present,
1275 port->eld.eld_buffer,
1276 ELD_MAX_SIZE);
1277
1278 if (size > 0) {
1279 size = min(size, ELD_MAX_SIZE);
1280 if (hdac_hdmi_parse_eld(hdev, port) < 0)
1281 size = -EINVAL;
1282 }
1283
1284 if (size > 0) {
1285 port->eld.eld_valid = true;
1286 port->eld.eld_size = size;
1287 } else {
1288 port->eld.eld_valid = false;
1289 port->eld.eld_size = 0;
1290 }
1291
1292 pcm = hdac_hdmi_get_pcm(hdev, port);
1293
1294 if (!port->eld.monitor_present || !port->eld.eld_valid) {
1295
1296 dev_err(&hdev->dev, "%s: disconnect for pin:port %d:%d\n",
1297 __func__, pin->nid, port->id);
1298
1299 /*
1300 * PCMs are not registered during device probe, so don't
1301 * report jack here. It will be done in usermode mux
1302 * control select.
1303 */
1304 if (pcm) {
1305 hdac_hdmi_jack_report(pcm, port, false);
1306 schedule_work(&port->dapm_work);
1307 }
1308
1309 mutex_unlock(&hdmi->pin_mutex);
1310 return;
1311 }
1312
1313 if (port->eld.monitor_present && port->eld.eld_valid) {
1314 if (pcm) {
1315 hdac_hdmi_jack_report(pcm, port, true);
1316 schedule_work(&port->dapm_work);
1317 }
1318
1319 print_hex_dump_debug("ELD: ", DUMP_PREFIX_OFFSET, 16, 1,
1320 port->eld.eld_buffer, port->eld.eld_size, false);
1321
1322 }
1323 mutex_unlock(&hdmi->pin_mutex);
1324 }
1325
1326 static int hdac_hdmi_add_ports(struct hdac_device *hdev,
1327 struct hdac_hdmi_pin *pin)
1328 {
1329 struct hdac_hdmi_port *ports;
1330 int max_ports = HDA_MAX_PORTS;
1331 int i;
1332
1333 /*
1334 * FIXME: max_port may vary for each platform, so pass this as
1335 * as driver data or query from i915 interface when this API is
1336 * implemented.
1337 */
1338
1339 ports = devm_kcalloc(&hdev->dev, max_ports, sizeof(*ports), GFP_KERNEL);
1340 if (!ports)
1341 return -ENOMEM;
1342
1343 for (i = 0; i < max_ports; i++) {
1344 ports[i].id = i;
1345 ports[i].pin = pin;
1346 INIT_WORK(&ports[i].dapm_work, hdac_hdmi_jack_dapm_work);
1347 }
1348 pin->ports = ports;
1349 pin->num_ports = max_ports;
1350 return 0;
1351 }
1352
1353 static int hdac_hdmi_add_pin(struct hdac_device *hdev, hda_nid_t nid)
1354 {
1355 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1356 struct hdac_hdmi_pin *pin;
1357 int ret;
1358
1359 pin = devm_kzalloc(&hdev->dev, sizeof(*pin), GFP_KERNEL);
1360 if (!pin)
1361 return -ENOMEM;
1362
1363 pin->nid = nid;
1364 pin->mst_capable = false;
1365 pin->hdev = hdev;
1366 ret = hdac_hdmi_add_ports(hdev, pin);
1367 if (ret < 0)
1368 return ret;
1369
1370 list_add_tail(&pin->head, &hdmi->pin_list);
1371 hdmi->num_pin++;
1372 hdmi->num_ports += pin->num_ports;
1373
1374 return 0;
1375 }
1376
1377 #define INTEL_VENDOR_NID_0x2 0x02
1378 #define INTEL_VENDOR_NID_0x8 0x08
1379 #define INTEL_VENDOR_NID_0xb 0x0b
1380 #define INTEL_GET_VENDOR_VERB 0xf81
1381 #define INTEL_SET_VENDOR_VERB 0x781
1382 #define INTEL_EN_DP12 0x02 /* enable DP 1.2 features */
1383 #define INTEL_EN_ALL_PIN_CVTS 0x01 /* enable 2nd & 3rd pins and convertors */
1384
1385 static void hdac_hdmi_skl_enable_all_pins(struct hdac_device *hdev)
1386 {
1387 unsigned int vendor_param;
1388 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1389 unsigned int vendor_nid = hdmi->drv_data->vendor_nid;
1390
1391 vendor_param = snd_hdac_codec_read(hdev, vendor_nid, 0,
1392 INTEL_GET_VENDOR_VERB, 0);
1393 if (vendor_param == -1 || vendor_param & INTEL_EN_ALL_PIN_CVTS)
1394 return;
1395
1396 vendor_param |= INTEL_EN_ALL_PIN_CVTS;
1397 vendor_param = snd_hdac_codec_read(hdev, vendor_nid, 0,
1398 INTEL_SET_VENDOR_VERB, vendor_param);
1399 if (vendor_param == -1)
1400 return;
1401 }
1402
1403 static void hdac_hdmi_skl_enable_dp12(struct hdac_device *hdev)
1404 {
1405 unsigned int vendor_param;
1406 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1407 unsigned int vendor_nid = hdmi->drv_data->vendor_nid;
1408
1409 vendor_param = snd_hdac_codec_read(hdev, vendor_nid, 0,
1410 INTEL_GET_VENDOR_VERB, 0);
1411 if (vendor_param == -1 || vendor_param & INTEL_EN_DP12)
1412 return;
1413
1414 /* enable DP1.2 mode */
1415 vendor_param |= INTEL_EN_DP12;
1416 vendor_param = snd_hdac_codec_read(hdev, vendor_nid, 0,
1417 INTEL_SET_VENDOR_VERB, vendor_param);
1418 if (vendor_param == -1)
1419 return;
1420
1421 }
1422
1423 static const struct snd_soc_dai_ops hdmi_dai_ops = {
1424 .startup = hdac_hdmi_pcm_open,
1425 .shutdown = hdac_hdmi_pcm_close,
1426 .hw_params = hdac_hdmi_set_hw_params,
1427 .set_tdm_slot = hdac_hdmi_set_tdm_slot,
1428 };
1429
1430 /*
1431 * Each converter can support a stream independently. So a dai is created
1432 * based on the number of converter queried.
1433 */
1434 static int hdac_hdmi_create_dais(struct hdac_device *hdev,
1435 struct snd_soc_dai_driver **dais,
1436 struct hdac_hdmi_priv *hdmi, int num_dais)
1437 {
1438 struct snd_soc_dai_driver *hdmi_dais;
1439 struct hdac_hdmi_cvt *cvt;
1440 char name[NAME_SIZE], dai_name[NAME_SIZE];
1441 int i = 0;
1442 u32 rates, bps;
1443 unsigned int rate_max = 384000, rate_min = 8000;
1444 u64 formats;
1445 int ret;
1446
1447 hdmi_dais = devm_kzalloc(&hdev->dev,
1448 (sizeof(*hdmi_dais) * num_dais),
1449 GFP_KERNEL);
1450 if (!hdmi_dais)
1451 return -ENOMEM;
1452
1453 list_for_each_entry(cvt, &hdmi->cvt_list, head) {
1454 ret = snd_hdac_query_supported_pcm(hdev, cvt->nid,
1455 &rates, &formats, &bps);
1456 if (ret)
1457 return ret;
1458
1459 /* Filter out 44.1, 88.2 and 176.4Khz */
1460 rates &= ~(SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_88200 |
1461 SNDRV_PCM_RATE_176400);
1462 if (!rates)
1463 return -EINVAL;
1464
1465 sprintf(dai_name, "intel-hdmi-hifi%d", i+1);
1466 hdmi_dais[i].name = devm_kstrdup(&hdev->dev,
1467 dai_name, GFP_KERNEL);
1468
1469 if (!hdmi_dais[i].name)
1470 return -ENOMEM;
1471
1472 snprintf(name, sizeof(name), "hifi%d", i+1);
1473 hdmi_dais[i].playback.stream_name =
1474 devm_kstrdup(&hdev->dev, name, GFP_KERNEL);
1475 if (!hdmi_dais[i].playback.stream_name)
1476 return -ENOMEM;
1477
1478 /*
1479 * Set caps based on capability queried from the converter.
1480 * It will be constrained runtime based on ELD queried.
1481 */
1482 hdmi_dais[i].playback.formats = formats;
1483 hdmi_dais[i].playback.rates = rates;
1484 hdmi_dais[i].playback.rate_max = rate_max;
1485 hdmi_dais[i].playback.rate_min = rate_min;
1486 hdmi_dais[i].playback.channels_min = 2;
1487 hdmi_dais[i].playback.channels_max = 2;
1488 hdmi_dais[i].playback.sig_bits = bps;
1489 hdmi_dais[i].ops = &hdmi_dai_ops;
1490 i++;
1491 }
1492
1493 *dais = hdmi_dais;
1494 hdmi->dai_drv = hdmi_dais;
1495
1496 return 0;
1497 }
1498
1499 /*
1500 * Parse all nodes and store the cvt/pin nids in array
1501 * Add one time initialization for pin and cvt widgets
1502 */
1503 static int hdac_hdmi_parse_and_map_nid(struct hdac_device *hdev,
1504 struct snd_soc_dai_driver **dais, int *num_dais)
1505 {
1506 hda_nid_t nid;
1507 int i, num_nodes;
1508 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1509 int ret;
1510
1511 hdac_hdmi_skl_enable_all_pins(hdev);
1512 hdac_hdmi_skl_enable_dp12(hdev);
1513
1514 num_nodes = snd_hdac_get_sub_nodes(hdev, hdev->afg, &nid);
1515 if (!nid || num_nodes <= 0) {
1516 dev_warn(&hdev->dev, "HDMI: failed to get afg sub nodes\n");
1517 return -EINVAL;
1518 }
1519
1520 for (i = 0; i < num_nodes; i++, nid++) {
1521 unsigned int caps;
1522 unsigned int type;
1523
1524 caps = get_wcaps(hdev, nid);
1525 type = get_wcaps_type(caps);
1526
1527 if (!(caps & AC_WCAP_DIGITAL))
1528 continue;
1529
1530 switch (type) {
1531
1532 case AC_WID_AUD_OUT:
1533 ret = hdac_hdmi_add_cvt(hdev, nid);
1534 if (ret < 0)
1535 return ret;
1536 break;
1537
1538 case AC_WID_PIN:
1539 ret = hdac_hdmi_add_pin(hdev, nid);
1540 if (ret < 0)
1541 return ret;
1542 break;
1543 }
1544 }
1545
1546 if (!hdmi->num_pin || !hdmi->num_cvt) {
1547 ret = -EIO;
1548 dev_err(&hdev->dev, "Bad pin/cvt setup in %s\n", __func__);
1549 return ret;
1550 }
1551
1552 ret = hdac_hdmi_create_dais(hdev, dais, hdmi, hdmi->num_cvt);
1553 if (ret) {
1554 dev_err(&hdev->dev, "Failed to create dais with err: %d\n",
1555 ret);
1556 return ret;
1557 }
1558
1559 *num_dais = hdmi->num_cvt;
1560 ret = hdac_hdmi_init_dai_map(hdev);
1561 if (ret < 0)
1562 dev_err(&hdev->dev, "Failed to init DAI map with err: %d\n",
1563 ret);
1564 return ret;
1565 }
1566
1567 static int hdac_hdmi_pin2port(void *aptr, int pin)
1568 {
1569 struct hdac_device *hdev = aptr;
1570 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1571 const int *map = hdmi->drv_data->port_map;
1572 int i;
1573
1574 if (!hdmi->drv_data->port_num)
1575 return pin - 4; /* map NID 0x05 -> port #1 */
1576
1577 /*
1578 * looking for the pin number in the mapping table and return
1579 * the index which indicate the port number
1580 */
1581 for (i = 0; i < hdmi->drv_data->port_num; i++) {
1582 if (pin == map[i])
1583 return i + 1;
1584 }
1585
1586 /* return -1 if pin number exceeds our expectation */
1587 dev_err(&hdev->dev, "Can't find the port for pin %d\n", pin);
1588 return -1;
1589 }
1590
1591 static void hdac_hdmi_eld_notify_cb(void *aptr, int port, int pipe)
1592 {
1593 struct hdac_device *hdev = aptr;
1594 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1595 struct hdac_hdmi_pin *pin = NULL;
1596 struct hdac_hdmi_port *hport = NULL;
1597 struct snd_soc_component *component = hdmi->component;
1598 int i;
1599 hda_nid_t pin_nid;
1600
1601 if (!hdmi->drv_data->port_num) {
1602 /* for legacy platforms */
1603 pin_nid = port + 0x04;
1604 } else if (port < hdmi->drv_data->port_num) {
1605 /* get pin number from the pin2port mapping table */
1606 pin_nid = hdmi->drv_data->port_map[port - 1];
1607 } else {
1608 dev_err(&hdev->dev, "Can't find the pin for port %d\n", port);
1609 return;
1610 }
1611
1612 dev_dbg(&hdev->dev, "%s: for pin:%d port=%d\n", __func__,
1613 pin_nid, pipe);
1614
1615 /*
1616 * skip notification during system suspend (but not in runtime PM);
1617 * the state will be updated at resume. Also since the ELD and
1618 * connection states are updated in anyway at the end of the resume,
1619 * we can skip it when received during PM process.
1620 */
1621 if (snd_power_get_state(component->card->snd_card) !=
1622 SNDRV_CTL_POWER_D0)
1623 return;
1624
1625 if (atomic_read(&hdev->in_pm))
1626 return;
1627
1628 list_for_each_entry(pin, &hdmi->pin_list, head) {
1629 if (pin->nid != pin_nid)
1630 continue;
1631
1632 /* In case of non MST pin, pipe is -1 */
1633 if (pipe == -1) {
1634 pin->mst_capable = false;
1635 /* if not MST, default is port[0] */
1636 hport = &pin->ports[0];
1637 } else {
1638 for (i = 0; i < pin->num_ports; i++) {
1639 pin->mst_capable = true;
1640 if (pin->ports[i].id == pipe) {
1641 hport = &pin->ports[i];
1642 break;
1643 }
1644 }
1645 }
1646
1647 if (hport)
1648 hdac_hdmi_present_sense(pin, hport);
1649 }
1650
1651 }
1652
1653 static struct drm_audio_component_audio_ops aops = {
1654 .pin2port = hdac_hdmi_pin2port,
1655 .pin_eld_notify = hdac_hdmi_eld_notify_cb,
1656 };
1657
1658 static struct snd_pcm *hdac_hdmi_get_pcm_from_id(struct snd_soc_card *card,
1659 int device)
1660 {
1661 struct snd_soc_pcm_runtime *rtd;
1662
1663 for_each_card_rtds(card, rtd) {
1664 if (rtd->pcm && (rtd->pcm->device == device))
1665 return rtd->pcm;
1666 }
1667
1668 return NULL;
1669 }
1670
1671 /* create jack pin kcontrols */
1672 static int create_fill_jack_kcontrols(struct snd_soc_card *card,
1673 struct hdac_device *hdev)
1674 {
1675 struct hdac_hdmi_pin *pin;
1676 struct snd_kcontrol_new *kc;
1677 char kc_name[NAME_SIZE], xname[NAME_SIZE];
1678 char *name;
1679 int i = 0, j;
1680 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1681 struct snd_soc_component *component = hdmi->component;
1682
1683 kc = devm_kcalloc(component->dev, hdmi->num_ports,
1684 sizeof(*kc), GFP_KERNEL);
1685
1686 if (!kc)
1687 return -ENOMEM;
1688
1689 list_for_each_entry(pin, &hdmi->pin_list, head) {
1690 for (j = 0; j < pin->num_ports; j++) {
1691 snprintf(xname, sizeof(xname), "hif%d-%d Jack",
1692 pin->nid, pin->ports[j].id);
1693 name = devm_kstrdup(component->dev, xname, GFP_KERNEL);
1694 if (!name)
1695 return -ENOMEM;
1696 snprintf(kc_name, sizeof(kc_name), "%s Switch", xname);
1697 kc[i].name = devm_kstrdup(component->dev, kc_name,
1698 GFP_KERNEL);
1699 if (!kc[i].name)
1700 return -ENOMEM;
1701
1702 kc[i].private_value = (unsigned long)name;
1703 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1704 kc[i].access = 0;
1705 kc[i].info = snd_soc_dapm_info_pin_switch;
1706 kc[i].put = snd_soc_dapm_put_pin_switch;
1707 kc[i].get = snd_soc_dapm_get_pin_switch;
1708 i++;
1709 }
1710 }
1711
1712 return snd_soc_add_card_controls(card, kc, i);
1713 }
1714
1715 int hdac_hdmi_jack_port_init(struct snd_soc_component *component,
1716 struct snd_soc_dapm_context *dapm)
1717 {
1718 struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component);
1719 struct hdac_device *hdev = hdmi->hdev;
1720 struct hdac_hdmi_pin *pin;
1721 struct snd_soc_dapm_widget *widgets;
1722 struct snd_soc_dapm_route *route;
1723 char w_name[NAME_SIZE];
1724 int i = 0, j, ret;
1725
1726 widgets = devm_kcalloc(dapm->dev, hdmi->num_ports,
1727 sizeof(*widgets), GFP_KERNEL);
1728
1729 if (!widgets)
1730 return -ENOMEM;
1731
1732 route = devm_kcalloc(dapm->dev, hdmi->num_ports,
1733 sizeof(*route), GFP_KERNEL);
1734 if (!route)
1735 return -ENOMEM;
1736
1737 /* create Jack DAPM widget */
1738 list_for_each_entry(pin, &hdmi->pin_list, head) {
1739 for (j = 0; j < pin->num_ports; j++) {
1740 snprintf(w_name, sizeof(w_name), "hif%d-%d Jack",
1741 pin->nid, pin->ports[j].id);
1742
1743 ret = hdac_hdmi_fill_widget_info(dapm->dev, &widgets[i],
1744 snd_soc_dapm_spk, NULL,
1745 w_name, NULL, NULL, 0, NULL, 0);
1746 if (ret < 0)
1747 return ret;
1748
1749 pin->ports[j].jack_pin = widgets[i].name;
1750 pin->ports[j].dapm = dapm;
1751
1752 /* add to route from Jack widget to output */
1753 hdac_hdmi_fill_route(&route[i], pin->ports[j].jack_pin,
1754 NULL, pin->ports[j].output_pin, NULL);
1755
1756 i++;
1757 }
1758 }
1759
1760 /* Add Route from Jack widget to the output widget */
1761 ret = snd_soc_dapm_new_controls(dapm, widgets, hdmi->num_ports);
1762 if (ret < 0)
1763 return ret;
1764
1765 ret = snd_soc_dapm_add_routes(dapm, route, hdmi->num_ports);
1766 if (ret < 0)
1767 return ret;
1768
1769 ret = snd_soc_dapm_new_widgets(dapm->card);
1770 if (ret < 0)
1771 return ret;
1772
1773 /* Add Jack Pin switch Kcontrol */
1774 ret = create_fill_jack_kcontrols(dapm->card, hdev);
1775
1776 if (ret < 0)
1777 return ret;
1778
1779 /* default set the Jack Pin switch to OFF */
1780 list_for_each_entry(pin, &hdmi->pin_list, head) {
1781 for (j = 0; j < pin->num_ports; j++)
1782 snd_soc_dapm_disable_pin(pin->ports[j].dapm,
1783 pin->ports[j].jack_pin);
1784 }
1785
1786 return 0;
1787 }
1788 EXPORT_SYMBOL_GPL(hdac_hdmi_jack_port_init);
1789
1790 int hdac_hdmi_jack_init(struct snd_soc_dai *dai, int device,
1791 struct snd_soc_jack *jack)
1792 {
1793 struct snd_soc_component *component = dai->component;
1794 struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component);
1795 struct hdac_device *hdev = hdmi->hdev;
1796 struct hdac_hdmi_pcm *pcm;
1797 struct snd_pcm *snd_pcm;
1798 int err;
1799
1800 /*
1801 * this is a new PCM device, create new pcm and
1802 * add to the pcm list
1803 */
1804 pcm = devm_kzalloc(&hdev->dev, sizeof(*pcm), GFP_KERNEL);
1805 if (!pcm)
1806 return -ENOMEM;
1807 pcm->pcm_id = device;
1808 pcm->cvt = hdmi->dai_map[dai->id].cvt;
1809 pcm->jack_event = 0;
1810 pcm->jack = jack;
1811 mutex_init(&pcm->lock);
1812 INIT_LIST_HEAD(&pcm->port_list);
1813 snd_pcm = hdac_hdmi_get_pcm_from_id(dai->component->card, device);
1814 if (snd_pcm) {
1815 err = snd_hdac_add_chmap_ctls(snd_pcm, device, &hdmi->chmap);
1816 if (err < 0) {
1817 dev_err(&hdev->dev,
1818 "chmap control add failed with err: %d for pcm: %d\n",
1819 err, device);
1820 return err;
1821 }
1822 }
1823
1824 list_add_tail(&pcm->head, &hdmi->pcm_list);
1825
1826 return 0;
1827 }
1828 EXPORT_SYMBOL_GPL(hdac_hdmi_jack_init);
1829
1830 static void hdac_hdmi_present_sense_all_pins(struct hdac_device *hdev,
1831 struct hdac_hdmi_priv *hdmi, bool detect_pin_caps)
1832 {
1833 int i;
1834 struct hdac_hdmi_pin *pin;
1835
1836 list_for_each_entry(pin, &hdmi->pin_list, head) {
1837 if (detect_pin_caps) {
1838
1839 if (hdac_hdmi_get_port_len(hdev, pin->nid) == 0)
1840 pin->mst_capable = false;
1841 else
1842 pin->mst_capable = true;
1843 }
1844
1845 for (i = 0; i < pin->num_ports; i++) {
1846 if (!pin->mst_capable && i > 0)
1847 continue;
1848
1849 hdac_hdmi_present_sense(pin, &pin->ports[i]);
1850 }
1851 }
1852 }
1853
1854 static int hdmi_codec_probe(struct snd_soc_component *component)
1855 {
1856 struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component);
1857 struct hdac_device *hdev = hdmi->hdev;
1858 struct snd_soc_dapm_context *dapm =
1859 snd_soc_component_get_dapm(component);
1860 struct hdac_ext_link *hlink = NULL;
1861 int ret;
1862
1863 hdmi->component = component;
1864
1865 /*
1866 * hold the ref while we probe, also no need to drop the ref on
1867 * exit, we call pm_runtime_suspend() so that will do for us
1868 */
1869 hlink = snd_hdac_ext_bus_get_link(hdev->bus, dev_name(&hdev->dev));
1870 if (!hlink) {
1871 dev_err(&hdev->dev, "hdac link not found\n");
1872 return -EIO;
1873 }
1874
1875 snd_hdac_ext_bus_link_get(hdev->bus, hlink);
1876
1877 ret = create_fill_widget_route_map(dapm);
1878 if (ret < 0)
1879 return ret;
1880
1881 aops.audio_ptr = hdev;
1882 ret = snd_hdac_acomp_register_notifier(hdev->bus, &aops);
1883 if (ret < 0) {
1884 dev_err(&hdev->dev, "notifier register failed: err: %d\n", ret);
1885 return ret;
1886 }
1887
1888 hdac_hdmi_present_sense_all_pins(hdev, hdmi, true);
1889 /* Imp: Store the card pointer in hda_codec */
1890 hdmi->card = dapm->card->snd_card;
1891
1892 /*
1893 * Setup a device_link between card device and HDMI codec device.
1894 * The card device is the consumer and the HDMI codec device is
1895 * the supplier. With this setting, we can make sure that the audio
1896 * domain in display power will be always turned on before operating
1897 * on the HDMI audio codec registers.
1898 * Let's use the flag DL_FLAG_AUTOREMOVE_CONSUMER. This can make
1899 * sure the device link is freed when the machine driver is removed.
1900 */
1901 device_link_add(component->card->dev, &hdev->dev, DL_FLAG_RPM_ACTIVE |
1902 DL_FLAG_AUTOREMOVE_CONSUMER);
1903 /*
1904 * hdac_device core already sets the state to active and calls
1905 * get_noresume. So enable runtime and set the device to suspend.
1906 */
1907 pm_runtime_enable(&hdev->dev);
1908 pm_runtime_put(&hdev->dev);
1909 pm_runtime_suspend(&hdev->dev);
1910
1911 return 0;
1912 }
1913
1914 static void hdmi_codec_remove(struct snd_soc_component *component)
1915 {
1916 struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component);
1917 struct hdac_device *hdev = hdmi->hdev;
1918 int ret;
1919
1920 ret = snd_hdac_acomp_register_notifier(hdev->bus, NULL);
1921 if (ret < 0)
1922 dev_err(&hdev->dev, "notifier unregister failed: err: %d\n",
1923 ret);
1924
1925 pm_runtime_disable(&hdev->dev);
1926 }
1927
1928 #ifdef CONFIG_PM_SLEEP
1929 static int hdmi_codec_resume(struct device *dev)
1930 {
1931 struct hdac_device *hdev = dev_to_hdac_dev(dev);
1932 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1933 int ret;
1934
1935 ret = pm_runtime_force_resume(dev);
1936 if (ret < 0)
1937 return ret;
1938 /*
1939 * As the ELD notify callback request is not entertained while the
1940 * device is in suspend state. Need to manually check detection of
1941 * all pins here. pin capablity change is not support, so use the
1942 * already set pin caps.
1943 *
1944 * NOTE: this is safe to call even if the codec doesn't actually resume.
1945 * The pin check involves only with DRM audio component hooks, so it
1946 * works even if the HD-audio side is still dreaming peacefully.
1947 */
1948 hdac_hdmi_present_sense_all_pins(hdev, hdmi, false);
1949 return 0;
1950 }
1951 #else
1952 #define hdmi_codec_resume NULL
1953 #endif
1954
1955 static const struct snd_soc_component_driver hdmi_hda_codec = {
1956 .probe = hdmi_codec_probe,
1957 .remove = hdmi_codec_remove,
1958 .use_pmdown_time = 1,
1959 .endianness = 1,
1960 .non_legacy_dai_naming = 1,
1961 };
1962
1963 static void hdac_hdmi_get_chmap(struct hdac_device *hdev, int pcm_idx,
1964 unsigned char *chmap)
1965 {
1966 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1967 struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
1968
1969 memcpy(chmap, pcm->chmap, ARRAY_SIZE(pcm->chmap));
1970 }
1971
1972 static void hdac_hdmi_set_chmap(struct hdac_device *hdev, int pcm_idx,
1973 unsigned char *chmap, int prepared)
1974 {
1975 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1976 struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
1977 struct hdac_hdmi_port *port;
1978
1979 if (!pcm)
1980 return;
1981
1982 if (list_empty(&pcm->port_list))
1983 return;
1984
1985 mutex_lock(&pcm->lock);
1986 pcm->chmap_set = true;
1987 memcpy(pcm->chmap, chmap, ARRAY_SIZE(pcm->chmap));
1988 list_for_each_entry(port, &pcm->port_list, head)
1989 if (prepared)
1990 hdac_hdmi_setup_audio_infoframe(hdev, pcm, port);
1991 mutex_unlock(&pcm->lock);
1992 }
1993
1994 static bool is_hdac_hdmi_pcm_attached(struct hdac_device *hdev, int pcm_idx)
1995 {
1996 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1997 struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
1998
1999 if (!pcm)
2000 return false;
2001
2002 if (list_empty(&pcm->port_list))
2003 return false;
2004
2005 return true;
2006 }
2007
2008 static int hdac_hdmi_get_spk_alloc(struct hdac_device *hdev, int pcm_idx)
2009 {
2010 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
2011 struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
2012 struct hdac_hdmi_port *port;
2013
2014 if (!pcm)
2015 return 0;
2016
2017 if (list_empty(&pcm->port_list))
2018 return 0;
2019
2020 port = list_first_entry(&pcm->port_list, struct hdac_hdmi_port, head);
2021
2022 if (!port || !port->eld.eld_valid)
2023 return 0;
2024
2025 return port->eld.info.spk_alloc;
2026 }
2027
2028 static struct hdac_hdmi_drv_data intel_icl_drv_data = {
2029 .vendor_nid = INTEL_VENDOR_NID_0x2,
2030 .port_map = icl_pin2port_map,
2031 .port_num = ARRAY_SIZE(icl_pin2port_map),
2032 };
2033
2034 static struct hdac_hdmi_drv_data intel_glk_drv_data = {
2035 .vendor_nid = INTEL_VENDOR_NID_0xb,
2036 };
2037
2038 static struct hdac_hdmi_drv_data intel_drv_data = {
2039 .vendor_nid = INTEL_VENDOR_NID_0x8,
2040 };
2041
2042 static int hdac_hdmi_dev_probe(struct hdac_device *hdev)
2043 {
2044 struct hdac_hdmi_priv *hdmi_priv = NULL;
2045 struct snd_soc_dai_driver *hdmi_dais = NULL;
2046 struct hdac_ext_link *hlink = NULL;
2047 int num_dais = 0;
2048 int ret = 0;
2049 struct hdac_driver *hdrv = drv_to_hdac_driver(hdev->dev.driver);
2050 const struct hda_device_id *hdac_id = hdac_get_device_id(hdev, hdrv);
2051
2052 /* hold the ref while we probe */
2053 hlink = snd_hdac_ext_bus_get_link(hdev->bus, dev_name(&hdev->dev));
2054 if (!hlink) {
2055 dev_err(&hdev->dev, "hdac link not found\n");
2056 return -EIO;
2057 }
2058
2059 snd_hdac_ext_bus_link_get(hdev->bus, hlink);
2060
2061 hdmi_priv = devm_kzalloc(&hdev->dev, sizeof(*hdmi_priv), GFP_KERNEL);
2062 if (hdmi_priv == NULL)
2063 return -ENOMEM;
2064
2065 snd_hdac_register_chmap_ops(hdev, &hdmi_priv->chmap);
2066 hdmi_priv->chmap.ops.get_chmap = hdac_hdmi_get_chmap;
2067 hdmi_priv->chmap.ops.set_chmap = hdac_hdmi_set_chmap;
2068 hdmi_priv->chmap.ops.is_pcm_attached = is_hdac_hdmi_pcm_attached;
2069 hdmi_priv->chmap.ops.get_spk_alloc = hdac_hdmi_get_spk_alloc;
2070 hdmi_priv->hdev = hdev;
2071
2072 if (!hdac_id)
2073 return -ENODEV;
2074
2075 if (hdac_id->driver_data)
2076 hdmi_priv->drv_data =
2077 (struct hdac_hdmi_drv_data *)hdac_id->driver_data;
2078 else
2079 hdmi_priv->drv_data = &intel_drv_data;
2080
2081 dev_set_drvdata(&hdev->dev, hdmi_priv);
2082
2083 INIT_LIST_HEAD(&hdmi_priv->pin_list);
2084 INIT_LIST_HEAD(&hdmi_priv->cvt_list);
2085 INIT_LIST_HEAD(&hdmi_priv->pcm_list);
2086 mutex_init(&hdmi_priv->pin_mutex);
2087
2088 /*
2089 * Turned off in the runtime_suspend during the first explicit
2090 * pm_runtime_suspend call.
2091 */
2092 snd_hdac_display_power(hdev->bus, hdev->addr, true);
2093
2094 ret = hdac_hdmi_parse_and_map_nid(hdev, &hdmi_dais, &num_dais);
2095 if (ret < 0) {
2096 dev_err(&hdev->dev,
2097 "Failed in parse and map nid with err: %d\n", ret);
2098 return ret;
2099 }
2100 snd_hdac_refresh_widgets(hdev);
2101
2102 /* ASoC specific initialization */
2103 ret = devm_snd_soc_register_component(&hdev->dev, &hdmi_hda_codec,
2104 hdmi_dais, num_dais);
2105
2106 snd_hdac_ext_bus_link_put(hdev->bus, hlink);
2107
2108 return ret;
2109 }
2110
2111 static void clear_dapm_works(struct hdac_device *hdev)
2112 {
2113 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
2114 struct hdac_hdmi_pin *pin;
2115 int i;
2116
2117 list_for_each_entry(pin, &hdmi->pin_list, head)
2118 for (i = 0; i < pin->num_ports; i++)
2119 cancel_work_sync(&pin->ports[i].dapm_work);
2120 }
2121
2122 static int hdac_hdmi_dev_remove(struct hdac_device *hdev)
2123 {
2124 clear_dapm_works(hdev);
2125 snd_hdac_display_power(hdev->bus, hdev->addr, false);
2126
2127 return 0;
2128 }
2129
2130 #ifdef CONFIG_PM
2131 static int hdac_hdmi_runtime_suspend(struct device *dev)
2132 {
2133 struct hdac_device *hdev = dev_to_hdac_dev(dev);
2134 struct hdac_bus *bus = hdev->bus;
2135 struct hdac_ext_link *hlink = NULL;
2136
2137 dev_dbg(dev, "Enter: %s\n", __func__);
2138
2139 /* controller may not have been initialized for the first time */
2140 if (!bus)
2141 return 0;
2142
2143 clear_dapm_works(hdev);
2144
2145 /*
2146 * Power down afg.
2147 * codec_read is preferred over codec_write to set the power state.
2148 * This way verb is send to set the power state and response
2149 * is received. So setting power state is ensured without using loop
2150 * to read the state.
2151 */
2152 snd_hdac_codec_read(hdev, hdev->afg, 0, AC_VERB_SET_POWER_STATE,
2153 AC_PWRST_D3);
2154
2155 hlink = snd_hdac_ext_bus_get_link(bus, dev_name(dev));
2156 if (!hlink) {
2157 dev_err(dev, "hdac link not found\n");
2158 return -EIO;
2159 }
2160
2161 snd_hdac_codec_link_down(hdev);
2162 snd_hdac_ext_bus_link_put(bus, hlink);
2163
2164 snd_hdac_display_power(bus, hdev->addr, false);
2165
2166 return 0;
2167 }
2168
2169 static int hdac_hdmi_runtime_resume(struct device *dev)
2170 {
2171 struct hdac_device *hdev = dev_to_hdac_dev(dev);
2172 struct hdac_bus *bus = hdev->bus;
2173 struct hdac_ext_link *hlink = NULL;
2174
2175 dev_dbg(dev, "Enter: %s\n", __func__);
2176
2177 /* controller may not have been initialized for the first time */
2178 if (!bus)
2179 return 0;
2180
2181 hlink = snd_hdac_ext_bus_get_link(bus, dev_name(dev));
2182 if (!hlink) {
2183 dev_err(dev, "hdac link not found\n");
2184 return -EIO;
2185 }
2186
2187 snd_hdac_ext_bus_link_get(bus, hlink);
2188 snd_hdac_codec_link_up(hdev);
2189
2190 snd_hdac_display_power(bus, hdev->addr, true);
2191
2192 hdac_hdmi_skl_enable_all_pins(hdev);
2193 hdac_hdmi_skl_enable_dp12(hdev);
2194
2195 /* Power up afg */
2196 snd_hdac_codec_read(hdev, hdev->afg, 0, AC_VERB_SET_POWER_STATE,
2197 AC_PWRST_D0);
2198
2199 return 0;
2200 }
2201 #else
2202 #define hdac_hdmi_runtime_suspend NULL
2203 #define hdac_hdmi_runtime_resume NULL
2204 #endif
2205
2206 static const struct dev_pm_ops hdac_hdmi_pm = {
2207 SET_RUNTIME_PM_OPS(hdac_hdmi_runtime_suspend, hdac_hdmi_runtime_resume, NULL)
2208 SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, hdmi_codec_resume)
2209 };
2210
2211 static const struct hda_device_id hdmi_list[] = {
2212 HDA_CODEC_EXT_ENTRY(0x80862809, 0x100000, "Skylake HDMI", 0),
2213 HDA_CODEC_EXT_ENTRY(0x8086280a, 0x100000, "Broxton HDMI", 0),
2214 HDA_CODEC_EXT_ENTRY(0x8086280b, 0x100000, "Kabylake HDMI", 0),
2215 HDA_CODEC_EXT_ENTRY(0x8086280c, 0x100000, "Cannonlake HDMI",
2216 &intel_glk_drv_data),
2217 HDA_CODEC_EXT_ENTRY(0x8086280d, 0x100000, "Geminilake HDMI",
2218 &intel_glk_drv_data),
2219 HDA_CODEC_EXT_ENTRY(0x8086280f, 0x100000, "Icelake HDMI",
2220 &intel_icl_drv_data),
2221 {}
2222 };
2223
2224 MODULE_DEVICE_TABLE(hdaudio, hdmi_list);
2225
2226 static struct hdac_driver hdmi_driver = {
2227 .driver = {
2228 .name = "HDMI HDA Codec",
2229 .pm = &hdac_hdmi_pm,
2230 },
2231 .id_table = hdmi_list,
2232 .probe = hdac_hdmi_dev_probe,
2233 .remove = hdac_hdmi_dev_remove,
2234 };
2235
2236 static int __init hdmi_init(void)
2237 {
2238 return snd_hda_ext_driver_register(&hdmi_driver);
2239 }
2240
2241 static void __exit hdmi_exit(void)
2242 {
2243 snd_hda_ext_driver_unregister(&hdmi_driver);
2244 }
2245
2246 module_init(hdmi_init);
2247 module_exit(hdmi_exit);
2248
2249 MODULE_LICENSE("GPL v2");
2250 MODULE_DESCRIPTION("HDMI HD codec");
2251 MODULE_AUTHOR("Samreen Nilofer<samreen.nilofer@intel.com>");
2252 MODULE_AUTHOR("Subhransu S. Prusty<subhransu.s.prusty@intel.com>");
Linux with added FPC-III support