2 * hdac_hdmi.c - ASoc HDA-HDMI codec driver for Intel platforms
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 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.
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.
18 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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"
38 #define AMP_OUT_MUTE 0xb080
39 #define AMP_OUT_UNMUTE 0xb000
40 #define PIN_OUT (AC_PINCTL_OUT_EN)
42 #define HDA_MAX_CONNECTIONS 32
44 #define HDA_MAX_CVTS 3
45 #define HDA_MAX_PORTS 3
47 #define ELD_MAX_SIZE 256
48 #define ELD_FIXED_BYTES 20
50 #define ELD_VER_CEA_861D 2
51 #define ELD_VER_PARTIAL 31
52 #define ELD_MAX_MNL 16
54 struct hdac_hdmi_cvt_params {
55 unsigned int channels_min;
56 unsigned int channels_max;
62 struct hdac_hdmi_cvt {
63 struct list_head head;
66 struct hdac_hdmi_cvt_params params;
69 /* Currently only spk_alloc, more to be added */
70 struct hdac_hdmi_parsed_eld {
74 struct hdac_hdmi_eld {
78 char eld_buffer[ELD_MAX_SIZE];
79 struct hdac_hdmi_parsed_eld info;
82 struct hdac_hdmi_pin {
83 struct list_head head;
86 struct hdac_hdmi_port *ports;
88 struct hdac_device *hdev;
91 struct hdac_hdmi_port {
92 struct list_head head;
94 struct hdac_hdmi_pin *pin;
96 hda_nid_t mux_nids[HDA_MAX_CONNECTIONS];
97 struct hdac_hdmi_eld eld;
99 struct snd_soc_dapm_context *dapm;
100 const char *output_pin;
103 struct hdac_hdmi_pcm {
104 struct list_head head;
106 struct list_head port_list;
107 struct hdac_hdmi_cvt *cvt;
108 struct snd_soc_jack *jack;
113 unsigned char chmap[8]; /* ALSA API channel-map */
118 struct hdac_hdmi_dai_port_map {
120 struct hdac_hdmi_port *port;
121 struct hdac_hdmi_cvt *cvt;
125 * pin to port mapping table where the value indicate the pin number and
126 * the index indicate the port number with 1 base.
128 static const int icl_pin2port_map[] = {0x4, 0x6, 0x8, 0xa, 0xb};
130 struct hdac_hdmi_drv_data {
131 unsigned int vendor_nid;
132 const int *port_map; /* pin to port mapping table */
136 struct hdac_hdmi_priv {
137 struct hdac_device *hdev;
138 struct snd_soc_component *component;
139 struct snd_card *card;
140 struct hdac_hdmi_dai_port_map dai_map[HDA_MAX_CVTS];
141 struct list_head pin_list;
142 struct list_head cvt_list;
143 struct list_head pcm_list;
147 struct mutex pin_mutex;
148 struct hdac_chmap chmap;
149 struct hdac_hdmi_drv_data *drv_data;
150 struct snd_soc_dai_driver *dai_drv;
153 #define hdev_to_hdmi_priv(_hdev) dev_get_drvdata(&(_hdev)->dev)
155 static struct hdac_hdmi_pcm *
156 hdac_hdmi_get_pcm_from_cvt(struct hdac_hdmi_priv *hdmi,
157 struct hdac_hdmi_cvt *cvt)
159 struct hdac_hdmi_pcm *pcm = NULL;
161 list_for_each_entry(pcm, &hdmi->pcm_list, head) {
169 static void hdac_hdmi_jack_report(struct hdac_hdmi_pcm *pcm,
170 struct hdac_hdmi_port *port, bool is_connect)
172 struct hdac_device *hdev = port->pin->hdev;
175 snd_soc_dapm_enable_pin(port->dapm, port->jack_pin);
177 snd_soc_dapm_disable_pin(port->dapm, port->jack_pin);
181 * Report Jack connect event when a device is connected
182 * for the first time where same PCM is attached to multiple
185 if (pcm->jack_event == 0) {
187 "jack report for pcm=%d\n",
189 snd_soc_jack_report(pcm->jack, SND_JACK_AVOUT,
195 * Report Jack disconnect event when a device is disconnected
196 * is the only last connected device when same PCM is attached
199 if (pcm->jack_event == 1)
200 snd_soc_jack_report(pcm->jack, 0, SND_JACK_AVOUT);
201 if (pcm->jack_event > 0)
205 snd_soc_dapm_sync(port->dapm);
208 /* MST supported verbs */
210 * Get the no devices that can be connected to a port on the Pin widget.
212 static int hdac_hdmi_get_port_len(struct hdac_device *hdev, hda_nid_t nid)
215 unsigned int type, param;
217 caps = get_wcaps(hdev, nid);
218 type = get_wcaps_type(caps);
220 if (!(caps & AC_WCAP_DIGITAL) || (type != AC_WID_PIN))
223 param = snd_hdac_read_parm_uncached(hdev, nid, AC_PAR_DEVLIST_LEN);
227 return param & AC_DEV_LIST_LEN_MASK;
231 * Get the port entry select on the pin. Return the port entry
232 * id selected on the pin. Return 0 means the first port entry
233 * is selected or MST is not supported.
235 static int hdac_hdmi_port_select_get(struct hdac_device *hdev,
236 struct hdac_hdmi_port *port)
238 return snd_hdac_codec_read(hdev, port->pin->nid,
239 0, AC_VERB_GET_DEVICE_SEL, 0);
243 * Sets the selected port entry for the configuring Pin widget verb.
244 * returns error if port set is not equal to port get otherwise success
246 static int hdac_hdmi_port_select_set(struct hdac_device *hdev,
247 struct hdac_hdmi_port *port)
251 if (!port->pin->mst_capable)
254 /* AC_PAR_DEVLIST_LEN is 0 based. */
255 num_ports = hdac_hdmi_get_port_len(hdev, port->pin->nid);
259 * Device List Length is a 0 based integer value indicating the
260 * number of sink device that a MST Pin Widget can support.
262 if (num_ports + 1 < port->id)
265 snd_hdac_codec_write(hdev, port->pin->nid, 0,
266 AC_VERB_SET_DEVICE_SEL, port->id);
268 if (port->id != hdac_hdmi_port_select_get(hdev, port))
271 dev_dbg(&hdev->dev, "Selected the port=%d\n", port->id);
276 static struct hdac_hdmi_pcm *get_hdmi_pcm_from_id(struct hdac_hdmi_priv *hdmi,
279 struct hdac_hdmi_pcm *pcm;
281 list_for_each_entry(pcm, &hdmi->pcm_list, head) {
282 if (pcm->pcm_id == pcm_idx)
289 static unsigned int sad_format(const u8 *sad)
291 return ((sad[0] >> 0x3) & 0x1f);
294 static unsigned int sad_sample_bits_lpcm(const u8 *sad)
299 static int hdac_hdmi_eld_limit_formats(struct snd_pcm_runtime *runtime,
302 u64 formats = SNDRV_PCM_FMTBIT_S16;
304 const u8 *sad, *eld_buf = eld;
306 sad = drm_eld_sad(eld_buf);
308 goto format_constraint;
310 for (i = drm_eld_sad_count(eld_buf); i > 0; i--, sad += 3) {
311 if (sad_format(sad) == 1) { /* AUDIO_CODING_TYPE_LPCM */
314 * the controller support 20 and 24 bits in 32 bit
315 * container so we set S32
317 if (sad_sample_bits_lpcm(sad) & 0x6)
318 formats |= SNDRV_PCM_FMTBIT_S32;
323 return snd_pcm_hw_constraint_mask64(runtime, SNDRV_PCM_HW_PARAM_FORMAT,
329 hdac_hdmi_set_dip_index(struct hdac_device *hdev, hda_nid_t pin_nid,
330 int packet_index, int byte_index)
334 val = (packet_index << 5) | (byte_index & 0x1f);
335 snd_hdac_codec_write(hdev, pin_nid, 0, AC_VERB_SET_HDMI_DIP_INDEX, val);
338 struct dp_audio_infoframe {
341 u8 ver; /* 0x11 << 2 */
343 u8 CC02_CT47; /* match with HDMI infoframe from this on */
347 u8 LFEPBL01_LSV36_DM_INH7;
350 static int hdac_hdmi_setup_audio_infoframe(struct hdac_device *hdev,
351 struct hdac_hdmi_pcm *pcm, struct hdac_hdmi_port *port)
353 uint8_t buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_AUDIO_INFOFRAME_SIZE];
354 struct hdmi_audio_infoframe frame;
355 struct hdac_hdmi_pin *pin = port->pin;
356 struct dp_audio_infoframe dp_ai;
357 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
358 struct hdac_hdmi_cvt *cvt = pcm->cvt;
366 ca = snd_hdac_channel_allocation(hdev, port->eld.info.spk_alloc,
367 pcm->channels, pcm->chmap_set, true, pcm->chmap);
369 channels = snd_hdac_get_active_channels(ca);
370 hdmi->chmap.ops.set_channel_count(hdev, cvt->nid, channels);
372 snd_hdac_setup_channel_mapping(&hdmi->chmap, pin->nid, false, ca,
373 pcm->channels, pcm->chmap, pcm->chmap_set);
375 eld_buf = port->eld.eld_buffer;
376 conn_type = drm_eld_get_conn_type(eld_buf);
379 case DRM_ELD_CONN_TYPE_HDMI:
380 hdmi_audio_infoframe_init(&frame);
382 frame.channels = channels;
383 frame.channel_allocation = ca;
385 ret = hdmi_audio_infoframe_pack(&frame, buffer, sizeof(buffer));
391 case DRM_ELD_CONN_TYPE_DP:
392 memset(&dp_ai, 0, sizeof(dp_ai));
395 dp_ai.ver = 0x11 << 2;
396 dp_ai.CC02_CT47 = channels - 1;
403 dev_err(&hdev->dev, "Invalid connection type: %d\n", conn_type);
407 /* stop infoframe transmission */
408 hdac_hdmi_set_dip_index(hdev, pin->nid, 0x0, 0x0);
409 snd_hdac_codec_write(hdev, pin->nid, 0,
410 AC_VERB_SET_HDMI_DIP_XMIT, AC_DIPXMIT_DISABLE);
413 /* Fill infoframe. Index auto-incremented */
414 hdac_hdmi_set_dip_index(hdev, pin->nid, 0x0, 0x0);
415 if (conn_type == DRM_ELD_CONN_TYPE_HDMI) {
416 for (i = 0; i < sizeof(buffer); i++)
417 snd_hdac_codec_write(hdev, pin->nid, 0,
418 AC_VERB_SET_HDMI_DIP_DATA, buffer[i]);
420 for (i = 0; i < sizeof(dp_ai); i++)
421 snd_hdac_codec_write(hdev, pin->nid, 0,
422 AC_VERB_SET_HDMI_DIP_DATA, dip[i]);
425 /* Start infoframe */
426 hdac_hdmi_set_dip_index(hdev, pin->nid, 0x0, 0x0);
427 snd_hdac_codec_write(hdev, pin->nid, 0,
428 AC_VERB_SET_HDMI_DIP_XMIT, AC_DIPXMIT_BEST);
433 static int hdac_hdmi_set_tdm_slot(struct snd_soc_dai *dai,
434 unsigned int tx_mask, unsigned int rx_mask,
435 int slots, int slot_width)
437 struct hdac_hdmi_priv *hdmi = snd_soc_dai_get_drvdata(dai);
438 struct hdac_device *hdev = hdmi->hdev;
439 struct hdac_hdmi_dai_port_map *dai_map;
440 struct hdac_hdmi_pcm *pcm;
442 dev_dbg(&hdev->dev, "%s: strm_tag: %d\n", __func__, tx_mask);
444 dai_map = &hdmi->dai_map[dai->id];
446 pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, dai_map->cvt);
449 pcm->stream_tag = (tx_mask << 4);
454 static int hdac_hdmi_set_hw_params(struct snd_pcm_substream *substream,
455 struct snd_pcm_hw_params *hparams, struct snd_soc_dai *dai)
457 struct hdac_hdmi_priv *hdmi = snd_soc_dai_get_drvdata(dai);
458 struct hdac_device *hdev = hdmi->hdev;
459 struct hdac_hdmi_dai_port_map *dai_map;
460 struct hdac_hdmi_port *port;
461 struct hdac_hdmi_pcm *pcm;
464 dai_map = &hdmi->dai_map[dai->id];
465 port = dai_map->port;
470 if ((!port->eld.monitor_present) || (!port->eld.eld_valid)) {
472 "device is not configured for this pin:port%d:%d\n",
473 port->pin->nid, port->id);
477 format = snd_hdac_calc_stream_format(params_rate(hparams),
478 params_channels(hparams), params_format(hparams),
479 dai->driver->playback.sig_bits, 0);
481 pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, dai_map->cvt);
485 pcm->format = format;
486 pcm->channels = params_channels(hparams);
491 static int hdac_hdmi_query_port_connlist(struct hdac_device *hdev,
492 struct hdac_hdmi_pin *pin,
493 struct hdac_hdmi_port *port)
495 if (!(get_wcaps(hdev, pin->nid) & AC_WCAP_CONN_LIST)) {
497 "HDMI: pin %d wcaps %#x does not support connection list\n",
498 pin->nid, get_wcaps(hdev, pin->nid));
502 if (hdac_hdmi_port_select_set(hdev, port) < 0)
505 port->num_mux_nids = snd_hdac_get_connections(hdev, pin->nid,
506 port->mux_nids, HDA_MAX_CONNECTIONS);
507 if (port->num_mux_nids == 0)
509 "No connections found for pin:port %d:%d\n",
512 dev_dbg(&hdev->dev, "num_mux_nids %d for pin:port %d:%d\n",
513 port->num_mux_nids, pin->nid, port->id);
515 return port->num_mux_nids;
519 * Query pcm list and return port to which stream is routed.
521 * Also query connection list of the pin, to validate the cvt to port map.
523 * Same stream rendering to multiple ports simultaneously can be done
524 * possibly, but not supported for now in driver. So return the first port
527 static struct hdac_hdmi_port *hdac_hdmi_get_port_from_cvt(
528 struct hdac_device *hdev,
529 struct hdac_hdmi_priv *hdmi,
530 struct hdac_hdmi_cvt *cvt)
532 struct hdac_hdmi_pcm *pcm;
533 struct hdac_hdmi_port *port = NULL;
536 list_for_each_entry(pcm, &hdmi->pcm_list, head) {
537 if (pcm->cvt == cvt) {
538 if (list_empty(&pcm->port_list))
541 list_for_each_entry(port, &pcm->port_list, head) {
542 mutex_lock(&pcm->lock);
543 ret = hdac_hdmi_query_port_connlist(hdev,
545 mutex_unlock(&pcm->lock);
549 for (i = 0; i < port->num_mux_nids; i++) {
550 if (port->mux_nids[i] == cvt->nid &&
551 port->eld.monitor_present &&
563 * This tries to get a valid pin and set the HW constraints based on the
564 * ELD. Even if a valid pin is not found return success so that device open
567 static int hdac_hdmi_pcm_open(struct snd_pcm_substream *substream,
568 struct snd_soc_dai *dai)
570 struct hdac_hdmi_priv *hdmi = snd_soc_dai_get_drvdata(dai);
571 struct hdac_device *hdev = hdmi->hdev;
572 struct hdac_hdmi_dai_port_map *dai_map;
573 struct hdac_hdmi_cvt *cvt;
574 struct hdac_hdmi_port *port;
577 dai_map = &hdmi->dai_map[dai->id];
580 port = hdac_hdmi_get_port_from_cvt(hdev, hdmi, cvt);
583 * To make PA and other userland happy.
584 * userland scans devices so returning error does not help.
588 if ((!port->eld.monitor_present) ||
589 (!port->eld.eld_valid)) {
592 "Failed: present?:%d ELD valid?:%d pin:port: %d:%d\n",
593 port->eld.monitor_present, port->eld.eld_valid,
594 port->pin->nid, port->id);
599 dai_map->port = port;
601 ret = hdac_hdmi_eld_limit_formats(substream->runtime,
602 port->eld.eld_buffer);
606 return snd_pcm_hw_constraint_eld(substream->runtime,
607 port->eld.eld_buffer);
610 static void hdac_hdmi_pcm_close(struct snd_pcm_substream *substream,
611 struct snd_soc_dai *dai)
613 struct hdac_hdmi_priv *hdmi = snd_soc_dai_get_drvdata(dai);
614 struct hdac_hdmi_dai_port_map *dai_map;
615 struct hdac_hdmi_pcm *pcm;
617 dai_map = &hdmi->dai_map[dai->id];
619 pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, dai_map->cvt);
622 mutex_lock(&pcm->lock);
623 pcm->chmap_set = false;
624 memset(pcm->chmap, 0, sizeof(pcm->chmap));
626 mutex_unlock(&pcm->lock);
630 dai_map->port = NULL;
634 hdac_hdmi_query_cvt_params(struct hdac_device *hdev, struct hdac_hdmi_cvt *cvt)
637 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
640 chans = get_wcaps(hdev, cvt->nid);
641 chans = get_wcaps_channels(chans);
643 cvt->params.channels_min = 2;
645 cvt->params.channels_max = chans;
646 if (chans > hdmi->chmap.channels_max)
647 hdmi->chmap.channels_max = chans;
649 err = snd_hdac_query_supported_pcm(hdev, cvt->nid,
651 &cvt->params.formats,
652 &cvt->params.maxbps);
655 "Failed to query pcm params for nid %d: %d\n",
661 static int hdac_hdmi_fill_widget_info(struct device *dev,
662 struct snd_soc_dapm_widget *w, enum snd_soc_dapm_type id,
663 void *priv, const char *wname, const char *stream,
664 struct snd_kcontrol_new *wc, int numkc,
665 int (*event)(struct snd_soc_dapm_widget *,
666 struct snd_kcontrol *, int), unsigned short event_flags)
669 w->name = devm_kstrdup(dev, wname, GFP_KERNEL);
674 w->reg = SND_SOC_NOPM;
676 w->kcontrol_news = wc;
677 w->num_kcontrols = numkc;
680 w->event_flags = event_flags;
685 static void hdac_hdmi_fill_route(struct snd_soc_dapm_route *route,
686 const char *sink, const char *control, const char *src,
687 int (*handler)(struct snd_soc_dapm_widget *src,
688 struct snd_soc_dapm_widget *sink))
692 route->control = control;
693 route->connected = handler;
696 static struct hdac_hdmi_pcm *hdac_hdmi_get_pcm(struct hdac_device *hdev,
697 struct hdac_hdmi_port *port)
699 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
700 struct hdac_hdmi_pcm *pcm = NULL;
701 struct hdac_hdmi_port *p;
703 list_for_each_entry(pcm, &hdmi->pcm_list, head) {
704 if (list_empty(&pcm->port_list))
707 list_for_each_entry(p, &pcm->port_list, head) {
708 if (p->id == port->id && port->pin == p->pin)
716 static void hdac_hdmi_set_power_state(struct hdac_device *hdev,
717 hda_nid_t nid, unsigned int pwr_state)
722 if (get_wcaps(hdev, nid) & AC_WCAP_POWER) {
723 if (!snd_hdac_check_power_state(hdev, nid, pwr_state)) {
724 for (count = 0; count < 10; count++) {
725 snd_hdac_codec_read(hdev, nid, 0,
726 AC_VERB_SET_POWER_STATE,
728 state = snd_hdac_sync_power_state(hdev,
730 if (!(state & AC_PWRST_ERROR))
737 static void hdac_hdmi_set_amp(struct hdac_device *hdev,
738 hda_nid_t nid, int val)
740 if (get_wcaps(hdev, nid) & AC_WCAP_OUT_AMP)
741 snd_hdac_codec_write(hdev, nid, 0,
742 AC_VERB_SET_AMP_GAIN_MUTE, val);
746 static int hdac_hdmi_pin_output_widget_event(struct snd_soc_dapm_widget *w,
747 struct snd_kcontrol *kc, int event)
749 struct hdac_hdmi_port *port = w->priv;
750 struct hdac_device *hdev = dev_to_hdac_dev(w->dapm->dev);
751 struct hdac_hdmi_pcm *pcm;
753 dev_dbg(&hdev->dev, "%s: widget: %s event: %x\n",
754 __func__, w->name, event);
756 pcm = hdac_hdmi_get_pcm(hdev, port);
760 /* set the device if pin is mst_capable */
761 if (hdac_hdmi_port_select_set(hdev, port) < 0)
765 case SND_SOC_DAPM_PRE_PMU:
766 hdac_hdmi_set_power_state(hdev, port->pin->nid, AC_PWRST_D0);
768 /* Enable out path for this pin widget */
769 snd_hdac_codec_write(hdev, port->pin->nid, 0,
770 AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT);
772 hdac_hdmi_set_amp(hdev, port->pin->nid, AMP_OUT_UNMUTE);
774 return hdac_hdmi_setup_audio_infoframe(hdev, pcm, port);
776 case SND_SOC_DAPM_POST_PMD:
777 hdac_hdmi_set_amp(hdev, port->pin->nid, AMP_OUT_MUTE);
779 /* Disable out path for this pin widget */
780 snd_hdac_codec_write(hdev, port->pin->nid, 0,
781 AC_VERB_SET_PIN_WIDGET_CONTROL, 0);
783 hdac_hdmi_set_power_state(hdev, port->pin->nid, AC_PWRST_D3);
791 static int hdac_hdmi_cvt_output_widget_event(struct snd_soc_dapm_widget *w,
792 struct snd_kcontrol *kc, int event)
794 struct hdac_hdmi_cvt *cvt = w->priv;
795 struct hdac_device *hdev = dev_to_hdac_dev(w->dapm->dev);
796 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
797 struct hdac_hdmi_pcm *pcm;
799 dev_dbg(&hdev->dev, "%s: widget: %s event: %x\n",
800 __func__, w->name, event);
802 pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, cvt);
807 case SND_SOC_DAPM_PRE_PMU:
808 hdac_hdmi_set_power_state(hdev, cvt->nid, AC_PWRST_D0);
810 /* Enable transmission */
811 snd_hdac_codec_write(hdev, cvt->nid, 0,
812 AC_VERB_SET_DIGI_CONVERT_1, 1);
814 /* Category Code (CC) to zero */
815 snd_hdac_codec_write(hdev, cvt->nid, 0,
816 AC_VERB_SET_DIGI_CONVERT_2, 0);
818 snd_hdac_codec_write(hdev, cvt->nid, 0,
819 AC_VERB_SET_CHANNEL_STREAMID, pcm->stream_tag);
820 snd_hdac_codec_write(hdev, cvt->nid, 0,
821 AC_VERB_SET_STREAM_FORMAT, pcm->format);
824 case SND_SOC_DAPM_POST_PMD:
825 snd_hdac_codec_write(hdev, cvt->nid, 0,
826 AC_VERB_SET_CHANNEL_STREAMID, 0);
827 snd_hdac_codec_write(hdev, cvt->nid, 0,
828 AC_VERB_SET_STREAM_FORMAT, 0);
830 hdac_hdmi_set_power_state(hdev, cvt->nid, AC_PWRST_D3);
838 static int hdac_hdmi_pin_mux_widget_event(struct snd_soc_dapm_widget *w,
839 struct snd_kcontrol *kc, int event)
841 struct hdac_hdmi_port *port = w->priv;
842 struct hdac_device *hdev = dev_to_hdac_dev(w->dapm->dev);
845 dev_dbg(&hdev->dev, "%s: widget: %s event: %x\n",
846 __func__, w->name, event);
849 kc = w->kcontrols[0];
851 mux_idx = dapm_kcontrol_get_value(kc);
853 /* set the device if pin is mst_capable */
854 if (hdac_hdmi_port_select_set(hdev, port) < 0)
858 snd_hdac_codec_write(hdev, port->pin->nid, 0,
859 AC_VERB_SET_CONNECT_SEL, (mux_idx - 1));
866 * Based on user selection, map the PINs with the PCMs.
868 static int hdac_hdmi_set_pin_port_mux(struct snd_kcontrol *kcontrol,
869 struct snd_ctl_elem_value *ucontrol)
872 struct hdac_hdmi_port *p, *p_next;
873 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
874 struct snd_soc_dapm_widget *w = snd_soc_dapm_kcontrol_widget(kcontrol);
875 struct snd_soc_dapm_context *dapm = w->dapm;
876 struct hdac_hdmi_port *port = w->priv;
877 struct hdac_device *hdev = dev_to_hdac_dev(dapm->dev);
878 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
879 struct hdac_hdmi_pcm *pcm = NULL;
880 const char *cvt_name = e->texts[ucontrol->value.enumerated.item[0]];
882 ret = snd_soc_dapm_put_enum_double(kcontrol, ucontrol);
889 mutex_lock(&hdmi->pin_mutex);
890 list_for_each_entry(pcm, &hdmi->pcm_list, head) {
891 if (list_empty(&pcm->port_list))
894 list_for_each_entry_safe(p, p_next, &pcm->port_list, head) {
895 if (p == port && p->id == port->id &&
896 p->pin == port->pin) {
897 hdac_hdmi_jack_report(pcm, port, false);
904 * Jack status is not reported during device probe as the
905 * PCMs are not registered by then. So report it here.
907 list_for_each_entry(pcm, &hdmi->pcm_list, head) {
908 if (!strcmp(cvt_name, pcm->cvt->name)) {
909 list_add_tail(&port->head, &pcm->port_list);
910 if (port->eld.monitor_present && port->eld.eld_valid) {
911 hdac_hdmi_jack_report(pcm, port, true);
912 mutex_unlock(&hdmi->pin_mutex);
917 mutex_unlock(&hdmi->pin_mutex);
923 * Ideally the Mux inputs should be based on the num_muxs enumerated, but
924 * the display driver seem to be programming the connection list for the pin
927 * So programming all the possible inputs for the mux, the user has to take
928 * care of selecting the right one and leaving all other inputs selected to
931 static int hdac_hdmi_create_pin_port_muxs(struct hdac_device *hdev,
932 struct hdac_hdmi_port *port,
933 struct snd_soc_dapm_widget *widget,
934 const char *widget_name)
936 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
937 struct hdac_hdmi_pin *pin = port->pin;
938 struct snd_kcontrol_new *kc;
939 struct hdac_hdmi_cvt *cvt;
941 char kc_name[NAME_SIZE];
942 char mux_items[NAME_SIZE];
943 /* To hold inputs to the Pin mux */
944 char *items[HDA_MAX_CONNECTIONS];
946 int num_items = hdmi->num_cvt + 1;
948 kc = devm_kzalloc(&hdev->dev, sizeof(*kc), GFP_KERNEL);
952 se = devm_kzalloc(&hdev->dev, sizeof(*se), GFP_KERNEL);
956 snprintf(kc_name, NAME_SIZE, "Pin %d port %d Input",
958 kc->name = devm_kstrdup(&hdev->dev, kc_name, GFP_KERNEL);
962 kc->private_value = (long)se;
963 kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
965 kc->info = snd_soc_info_enum_double;
966 kc->put = hdac_hdmi_set_pin_port_mux;
967 kc->get = snd_soc_dapm_get_enum_double;
969 se->reg = SND_SOC_NOPM;
971 /* enum texts: ["NONE", "cvt #", "cvt #", ...] */
972 se->items = num_items;
973 se->mask = roundup_pow_of_two(se->items) - 1;
975 sprintf(mux_items, "NONE");
976 items[i] = devm_kstrdup(&hdev->dev, mux_items, GFP_KERNEL);
980 list_for_each_entry(cvt, &hdmi->cvt_list, head) {
982 sprintf(mux_items, "cvt %d", cvt->nid);
983 items[i] = devm_kstrdup(&hdev->dev, mux_items, GFP_KERNEL);
988 se->texts = devm_kmemdup(&hdev->dev, items,
989 (num_items * sizeof(char *)), GFP_KERNEL);
993 return hdac_hdmi_fill_widget_info(&hdev->dev, widget,
994 snd_soc_dapm_mux, port, widget_name, NULL, kc, 1,
995 hdac_hdmi_pin_mux_widget_event,
996 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_REG);
999 /* Add cvt <- input <- mux route map */
1000 static void hdac_hdmi_add_pinmux_cvt_route(struct hdac_device *hdev,
1001 struct snd_soc_dapm_widget *widgets,
1002 struct snd_soc_dapm_route *route, int rindex)
1004 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1005 const struct snd_kcontrol_new *kc;
1006 struct soc_enum *se;
1007 int mux_index = hdmi->num_cvt + hdmi->num_ports;
1010 for (i = 0; i < hdmi->num_ports; i++) {
1011 kc = widgets[mux_index].kcontrol_news;
1012 se = (struct soc_enum *)kc->private_value;
1013 for (j = 0; j < hdmi->num_cvt; j++) {
1014 hdac_hdmi_fill_route(&route[rindex],
1015 widgets[mux_index].name,
1017 widgets[j].name, NULL);
1027 * Widgets are added in the below sequence
1028 * Converter widgets for num converters enumerated
1029 * Pin-port widgets for num ports for Pins enumerated
1030 * Pin-port mux widgets to represent connenction list of pin widget
1032 * For each port, one Mux and One output widget is added
1033 * Total widgets elements = num_cvt + (num_ports * 2);
1035 * Routes are added as below:
1036 * pin-port mux -> pin (based on num_ports)
1037 * cvt -> "Input sel control" -> pin-port_mux
1039 * Total route elements:
1040 * num_ports + (pin_muxes * num_cvt)
1042 static int create_fill_widget_route_map(struct snd_soc_dapm_context *dapm)
1044 struct snd_soc_dapm_widget *widgets;
1045 struct snd_soc_dapm_route *route;
1046 struct hdac_device *hdev = dev_to_hdac_dev(dapm->dev);
1047 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1048 struct snd_soc_dai_driver *dai_drv = hdmi->dai_drv;
1049 char widget_name[NAME_SIZE];
1050 struct hdac_hdmi_cvt *cvt;
1051 struct hdac_hdmi_pin *pin;
1052 int ret, i = 0, num_routes = 0, j;
1054 if (list_empty(&hdmi->cvt_list) || list_empty(&hdmi->pin_list))
1057 widgets = devm_kzalloc(dapm->dev, (sizeof(*widgets) *
1058 ((2 * hdmi->num_ports) + hdmi->num_cvt)),
1064 /* DAPM widgets to represent each converter widget */
1065 list_for_each_entry(cvt, &hdmi->cvt_list, head) {
1066 sprintf(widget_name, "Converter %d", cvt->nid);
1067 ret = hdac_hdmi_fill_widget_info(dapm->dev, &widgets[i],
1068 snd_soc_dapm_aif_in, cvt,
1069 widget_name, dai_drv[i].playback.stream_name, NULL, 0,
1070 hdac_hdmi_cvt_output_widget_event,
1071 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD);
1077 list_for_each_entry(pin, &hdmi->pin_list, head) {
1078 for (j = 0; j < pin->num_ports; j++) {
1079 sprintf(widget_name, "hif%d-%d Output",
1080 pin->nid, pin->ports[j].id);
1081 ret = hdac_hdmi_fill_widget_info(dapm->dev, &widgets[i],
1082 snd_soc_dapm_output, &pin->ports[j],
1083 widget_name, NULL, NULL, 0,
1084 hdac_hdmi_pin_output_widget_event,
1085 SND_SOC_DAPM_PRE_PMU |
1086 SND_SOC_DAPM_POST_PMD);
1089 pin->ports[j].output_pin = widgets[i].name;
1094 /* DAPM widgets to represent the connection list to pin widget */
1095 list_for_each_entry(pin, &hdmi->pin_list, head) {
1096 for (j = 0; j < pin->num_ports; j++) {
1097 sprintf(widget_name, "Pin%d-Port%d Mux",
1098 pin->nid, pin->ports[j].id);
1099 ret = hdac_hdmi_create_pin_port_muxs(hdev,
1100 &pin->ports[j], &widgets[i],
1106 /* For cvt to pin_mux mapping */
1107 num_routes += hdmi->num_cvt;
1109 /* For pin_mux to pin mapping */
1114 route = devm_kzalloc(dapm->dev, (sizeof(*route) * num_routes),
1120 /* Add pin <- NULL <- mux route map */
1121 list_for_each_entry(pin, &hdmi->pin_list, head) {
1122 for (j = 0; j < pin->num_ports; j++) {
1123 int sink_index = i + hdmi->num_cvt;
1124 int src_index = sink_index + pin->num_ports *
1127 hdac_hdmi_fill_route(&route[i],
1128 widgets[sink_index].name, NULL,
1129 widgets[src_index].name, NULL);
1134 hdac_hdmi_add_pinmux_cvt_route(hdev, widgets, route, i);
1136 snd_soc_dapm_new_controls(dapm, widgets,
1137 ((2 * hdmi->num_ports) + hdmi->num_cvt));
1139 snd_soc_dapm_add_routes(dapm, route, num_routes);
1140 snd_soc_dapm_new_widgets(dapm->card);
1146 static int hdac_hdmi_init_dai_map(struct hdac_device *hdev)
1148 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1149 struct hdac_hdmi_dai_port_map *dai_map;
1150 struct hdac_hdmi_cvt *cvt;
1153 if (list_empty(&hdmi->cvt_list))
1156 list_for_each_entry(cvt, &hdmi->cvt_list, head) {
1157 dai_map = &hdmi->dai_map[dai_id];
1158 dai_map->dai_id = dai_id;
1163 if (dai_id == HDA_MAX_CVTS) {
1164 dev_warn(&hdev->dev,
1165 "Max dais supported: %d\n", dai_id);
1173 static int hdac_hdmi_add_cvt(struct hdac_device *hdev, hda_nid_t nid)
1175 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1176 struct hdac_hdmi_cvt *cvt;
1177 char name[NAME_SIZE];
1179 cvt = kzalloc(sizeof(*cvt), GFP_KERNEL);
1184 sprintf(name, "cvt %d", cvt->nid);
1185 cvt->name = kstrdup(name, GFP_KERNEL);
1187 list_add_tail(&cvt->head, &hdmi->cvt_list);
1190 return hdac_hdmi_query_cvt_params(hdev, cvt);
1193 static int hdac_hdmi_parse_eld(struct hdac_device *hdev,
1194 struct hdac_hdmi_port *port)
1196 unsigned int ver, mnl;
1198 ver = (port->eld.eld_buffer[DRM_ELD_VER] & DRM_ELD_VER_MASK)
1199 >> DRM_ELD_VER_SHIFT;
1201 if (ver != ELD_VER_CEA_861D && ver != ELD_VER_PARTIAL) {
1202 dev_err(&hdev->dev, "HDMI: Unknown ELD version %d\n", ver);
1206 mnl = (port->eld.eld_buffer[DRM_ELD_CEA_EDID_VER_MNL] &
1207 DRM_ELD_MNL_MASK) >> DRM_ELD_MNL_SHIFT;
1209 if (mnl > ELD_MAX_MNL) {
1210 dev_err(&hdev->dev, "HDMI: MNL Invalid %d\n", mnl);
1214 port->eld.info.spk_alloc = port->eld.eld_buffer[DRM_ELD_SPEAKER];
1219 static void hdac_hdmi_present_sense(struct hdac_hdmi_pin *pin,
1220 struct hdac_hdmi_port *port)
1222 struct hdac_device *hdev = pin->hdev;
1223 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1224 struct hdac_hdmi_pcm *pcm;
1232 * In case of non MST pin, get_eld info API expectes port
1235 mutex_lock(&hdmi->pin_mutex);
1236 port->eld.monitor_present = false;
1238 if (pin->mst_capable)
1241 size = snd_hdac_acomp_get_eld(hdev, pin->nid, port_id,
1242 &port->eld.monitor_present,
1243 port->eld.eld_buffer,
1247 size = min(size, ELD_MAX_SIZE);
1248 if (hdac_hdmi_parse_eld(hdev, port) < 0)
1253 port->eld.eld_valid = true;
1254 port->eld.eld_size = size;
1256 port->eld.eld_valid = false;
1257 port->eld.eld_size = 0;
1260 pcm = hdac_hdmi_get_pcm(hdev, port);
1262 if (!port->eld.monitor_present || !port->eld.eld_valid) {
1264 dev_err(&hdev->dev, "%s: disconnect for pin:port %d:%d\n",
1265 __func__, pin->nid, port->id);
1268 * PCMs are not registered during device probe, so don't
1269 * report jack here. It will be done in usermode mux
1273 hdac_hdmi_jack_report(pcm, port, false);
1275 mutex_unlock(&hdmi->pin_mutex);
1279 if (port->eld.monitor_present && port->eld.eld_valid) {
1281 hdac_hdmi_jack_report(pcm, port, true);
1283 print_hex_dump_debug("ELD: ", DUMP_PREFIX_OFFSET, 16, 1,
1284 port->eld.eld_buffer, port->eld.eld_size, false);
1287 mutex_unlock(&hdmi->pin_mutex);
1290 static int hdac_hdmi_add_ports(struct hdac_hdmi_priv *hdmi,
1291 struct hdac_hdmi_pin *pin)
1293 struct hdac_hdmi_port *ports;
1294 int max_ports = HDA_MAX_PORTS;
1298 * FIXME: max_port may vary for each platform, so pass this as
1299 * as driver data or query from i915 interface when this API is
1303 ports = kcalloc(max_ports, sizeof(*ports), GFP_KERNEL);
1307 for (i = 0; i < max_ports; i++) {
1312 pin->num_ports = max_ports;
1316 static int hdac_hdmi_add_pin(struct hdac_device *hdev, hda_nid_t nid)
1318 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1319 struct hdac_hdmi_pin *pin;
1322 pin = kzalloc(sizeof(*pin), GFP_KERNEL);
1327 pin->mst_capable = false;
1329 ret = hdac_hdmi_add_ports(hdmi, pin);
1333 list_add_tail(&pin->head, &hdmi->pin_list);
1335 hdmi->num_ports += pin->num_ports;
1340 #define INTEL_VENDOR_NID_0x2 0x02
1341 #define INTEL_VENDOR_NID_0x8 0x08
1342 #define INTEL_VENDOR_NID_0xb 0x0b
1343 #define INTEL_GET_VENDOR_VERB 0xf81
1344 #define INTEL_SET_VENDOR_VERB 0x781
1345 #define INTEL_EN_DP12 0x02 /* enable DP 1.2 features */
1346 #define INTEL_EN_ALL_PIN_CVTS 0x01 /* enable 2nd & 3rd pins and convertors */
1348 static void hdac_hdmi_skl_enable_all_pins(struct hdac_device *hdev)
1350 unsigned int vendor_param;
1351 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1352 unsigned int vendor_nid = hdmi->drv_data->vendor_nid;
1354 vendor_param = snd_hdac_codec_read(hdev, vendor_nid, 0,
1355 INTEL_GET_VENDOR_VERB, 0);
1356 if (vendor_param == -1 || vendor_param & INTEL_EN_ALL_PIN_CVTS)
1359 vendor_param |= INTEL_EN_ALL_PIN_CVTS;
1360 vendor_param = snd_hdac_codec_read(hdev, vendor_nid, 0,
1361 INTEL_SET_VENDOR_VERB, vendor_param);
1362 if (vendor_param == -1)
1366 static void hdac_hdmi_skl_enable_dp12(struct hdac_device *hdev)
1368 unsigned int vendor_param;
1369 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1370 unsigned int vendor_nid = hdmi->drv_data->vendor_nid;
1372 vendor_param = snd_hdac_codec_read(hdev, vendor_nid, 0,
1373 INTEL_GET_VENDOR_VERB, 0);
1374 if (vendor_param == -1 || vendor_param & INTEL_EN_DP12)
1377 /* enable DP1.2 mode */
1378 vendor_param |= INTEL_EN_DP12;
1379 vendor_param = snd_hdac_codec_read(hdev, vendor_nid, 0,
1380 INTEL_SET_VENDOR_VERB, vendor_param);
1381 if (vendor_param == -1)
1386 static const struct snd_soc_dai_ops hdmi_dai_ops = {
1387 .startup = hdac_hdmi_pcm_open,
1388 .shutdown = hdac_hdmi_pcm_close,
1389 .hw_params = hdac_hdmi_set_hw_params,
1390 .set_tdm_slot = hdac_hdmi_set_tdm_slot,
1394 * Each converter can support a stream independently. So a dai is created
1395 * based on the number of converter queried.
1397 static int hdac_hdmi_create_dais(struct hdac_device *hdev,
1398 struct snd_soc_dai_driver **dais,
1399 struct hdac_hdmi_priv *hdmi, int num_dais)
1401 struct snd_soc_dai_driver *hdmi_dais;
1402 struct hdac_hdmi_cvt *cvt;
1403 char name[NAME_SIZE], dai_name[NAME_SIZE];
1406 unsigned int rate_max = 384000, rate_min = 8000;
1410 hdmi_dais = devm_kzalloc(&hdev->dev,
1411 (sizeof(*hdmi_dais) * num_dais),
1416 list_for_each_entry(cvt, &hdmi->cvt_list, head) {
1417 ret = snd_hdac_query_supported_pcm(hdev, cvt->nid,
1418 &rates, &formats, &bps);
1422 /* Filter out 44.1, 88.2 and 176.4Khz */
1423 rates &= ~(SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_88200 |
1424 SNDRV_PCM_RATE_176400);
1428 sprintf(dai_name, "intel-hdmi-hifi%d", i+1);
1429 hdmi_dais[i].name = devm_kstrdup(&hdev->dev,
1430 dai_name, GFP_KERNEL);
1432 if (!hdmi_dais[i].name)
1435 snprintf(name, sizeof(name), "hifi%d", i+1);
1436 hdmi_dais[i].playback.stream_name =
1437 devm_kstrdup(&hdev->dev, name, GFP_KERNEL);
1438 if (!hdmi_dais[i].playback.stream_name)
1442 * Set caps based on capability queried from the converter.
1443 * It will be constrained runtime based on ELD queried.
1445 hdmi_dais[i].playback.formats = formats;
1446 hdmi_dais[i].playback.rates = rates;
1447 hdmi_dais[i].playback.rate_max = rate_max;
1448 hdmi_dais[i].playback.rate_min = rate_min;
1449 hdmi_dais[i].playback.channels_min = 2;
1450 hdmi_dais[i].playback.channels_max = 2;
1451 hdmi_dais[i].playback.sig_bits = bps;
1452 hdmi_dais[i].ops = &hdmi_dai_ops;
1457 hdmi->dai_drv = hdmi_dais;
1463 * Parse all nodes and store the cvt/pin nids in array
1464 * Add one time initialization for pin and cvt widgets
1466 static int hdac_hdmi_parse_and_map_nid(struct hdac_device *hdev,
1467 struct snd_soc_dai_driver **dais, int *num_dais)
1471 struct hdac_hdmi_cvt *temp_cvt, *cvt_next;
1472 struct hdac_hdmi_pin *temp_pin, *pin_next;
1473 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1476 hdac_hdmi_skl_enable_all_pins(hdev);
1477 hdac_hdmi_skl_enable_dp12(hdev);
1479 num_nodes = snd_hdac_get_sub_nodes(hdev, hdev->afg, &nid);
1480 if (!nid || num_nodes <= 0) {
1481 dev_warn(&hdev->dev, "HDMI: failed to get afg sub nodes\n");
1485 for (i = 0; i < num_nodes; i++, nid++) {
1489 caps = get_wcaps(hdev, nid);
1490 type = get_wcaps_type(caps);
1492 if (!(caps & AC_WCAP_DIGITAL))
1497 case AC_WID_AUD_OUT:
1498 ret = hdac_hdmi_add_cvt(hdev, nid);
1504 ret = hdac_hdmi_add_pin(hdev, nid);
1511 if (!hdmi->num_pin || !hdmi->num_cvt) {
1516 ret = hdac_hdmi_create_dais(hdev, dais, hdmi, hdmi->num_cvt);
1518 dev_err(&hdev->dev, "Failed to create dais with err: %d\n",
1523 *num_dais = hdmi->num_cvt;
1524 ret = hdac_hdmi_init_dai_map(hdev);
1531 list_for_each_entry_safe(temp_cvt, cvt_next, &hdmi->cvt_list, head) {
1532 list_del(&temp_cvt->head);
1533 kfree(temp_cvt->name);
1537 list_for_each_entry_safe(temp_pin, pin_next, &hdmi->pin_list, head) {
1538 for (i = 0; i < temp_pin->num_ports; i++)
1539 temp_pin->ports[i].pin = NULL;
1540 kfree(temp_pin->ports);
1541 list_del(&temp_pin->head);
1548 static int hdac_hdmi_pin2port(void *aptr, int pin)
1550 struct hdac_device *hdev = aptr;
1551 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1552 const int *map = hdmi->drv_data->port_map;
1555 if (!hdmi->drv_data->port_num)
1556 return pin - 4; /* map NID 0x05 -> port #1 */
1559 * looking for the pin number in the mapping table and return
1560 * the index which indicate the port number
1562 for (i = 0; i < hdmi->drv_data->port_num; i++) {
1567 /* return -1 if pin number exceeds our expectation */
1568 dev_err(&hdev->dev, "Can't find the port for pin %d\n", pin);
1572 static void hdac_hdmi_eld_notify_cb(void *aptr, int port, int pipe)
1574 struct hdac_device *hdev = aptr;
1575 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1576 struct hdac_hdmi_pin *pin = NULL;
1577 struct hdac_hdmi_port *hport = NULL;
1578 struct snd_soc_component *component = hdmi->component;
1582 if (!hdmi->drv_data->port_num) {
1583 /* for legacy platforms */
1584 pin_nid = port + 0x04;
1585 } else if (port < hdmi->drv_data->port_num) {
1586 /* get pin number from the pin2port mapping table */
1587 pin_nid = hdmi->drv_data->port_map[port - 1];
1589 dev_err(&hdev->dev, "Can't find the pin for port %d\n", port);
1593 dev_dbg(&hdev->dev, "%s: for pin:%d port=%d\n", __func__,
1597 * skip notification during system suspend (but not in runtime PM);
1598 * the state will be updated at resume. Also since the ELD and
1599 * connection states are updated in anyway at the end of the resume,
1600 * we can skip it when received during PM process.
1602 if (snd_power_get_state(component->card->snd_card) !=
1606 if (atomic_read(&hdev->in_pm))
1609 list_for_each_entry(pin, &hdmi->pin_list, head) {
1610 if (pin->nid != pin_nid)
1613 /* In case of non MST pin, pipe is -1 */
1615 pin->mst_capable = false;
1616 /* if not MST, default is port[0] */
1617 hport = &pin->ports[0];
1619 for (i = 0; i < pin->num_ports; i++) {
1620 pin->mst_capable = true;
1621 if (pin->ports[i].id == pipe) {
1622 hport = &pin->ports[i];
1629 hdac_hdmi_present_sense(pin, hport);
1634 static struct drm_audio_component_audio_ops aops = {
1635 .pin2port = hdac_hdmi_pin2port,
1636 .pin_eld_notify = hdac_hdmi_eld_notify_cb,
1639 static struct snd_pcm *hdac_hdmi_get_pcm_from_id(struct snd_soc_card *card,
1642 struct snd_soc_pcm_runtime *rtd;
1644 for_each_card_rtds(card, rtd) {
1645 if (rtd->pcm && (rtd->pcm->device == device))
1652 /* create jack pin kcontrols */
1653 static int create_fill_jack_kcontrols(struct snd_soc_card *card,
1654 struct hdac_device *hdev)
1656 struct hdac_hdmi_pin *pin;
1657 struct snd_kcontrol_new *kc;
1658 char kc_name[NAME_SIZE], xname[NAME_SIZE];
1661 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1662 struct snd_soc_component *component = hdmi->component;
1664 kc = devm_kcalloc(component->dev, hdmi->num_ports,
1665 sizeof(*kc), GFP_KERNEL);
1670 list_for_each_entry(pin, &hdmi->pin_list, head) {
1671 for (j = 0; j < pin->num_ports; j++) {
1672 snprintf(xname, sizeof(xname), "hif%d-%d Jack",
1673 pin->nid, pin->ports[j].id);
1674 name = devm_kstrdup(component->dev, xname, GFP_KERNEL);
1677 snprintf(kc_name, sizeof(kc_name), "%s Switch", xname);
1678 kc[i].name = devm_kstrdup(component->dev, kc_name,
1683 kc[i].private_value = (unsigned long)name;
1684 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1686 kc[i].info = snd_soc_dapm_info_pin_switch;
1687 kc[i].put = snd_soc_dapm_put_pin_switch;
1688 kc[i].get = snd_soc_dapm_get_pin_switch;
1693 return snd_soc_add_card_controls(card, kc, i);
1696 int hdac_hdmi_jack_port_init(struct snd_soc_component *component,
1697 struct snd_soc_dapm_context *dapm)
1699 struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component);
1700 struct hdac_device *hdev = hdmi->hdev;
1701 struct hdac_hdmi_pin *pin;
1702 struct snd_soc_dapm_widget *widgets;
1703 struct snd_soc_dapm_route *route;
1704 char w_name[NAME_SIZE];
1707 widgets = devm_kcalloc(dapm->dev, hdmi->num_ports,
1708 sizeof(*widgets), GFP_KERNEL);
1713 route = devm_kcalloc(dapm->dev, hdmi->num_ports,
1714 sizeof(*route), GFP_KERNEL);
1718 /* create Jack DAPM widget */
1719 list_for_each_entry(pin, &hdmi->pin_list, head) {
1720 for (j = 0; j < pin->num_ports; j++) {
1721 snprintf(w_name, sizeof(w_name), "hif%d-%d Jack",
1722 pin->nid, pin->ports[j].id);
1724 ret = hdac_hdmi_fill_widget_info(dapm->dev, &widgets[i],
1725 snd_soc_dapm_spk, NULL,
1726 w_name, NULL, NULL, 0, NULL, 0);
1730 pin->ports[j].jack_pin = widgets[i].name;
1731 pin->ports[j].dapm = dapm;
1733 /* add to route from Jack widget to output */
1734 hdac_hdmi_fill_route(&route[i], pin->ports[j].jack_pin,
1735 NULL, pin->ports[j].output_pin, NULL);
1741 /* Add Route from Jack widget to the output widget */
1742 ret = snd_soc_dapm_new_controls(dapm, widgets, hdmi->num_ports);
1746 ret = snd_soc_dapm_add_routes(dapm, route, hdmi->num_ports);
1750 ret = snd_soc_dapm_new_widgets(dapm->card);
1754 /* Add Jack Pin switch Kcontrol */
1755 ret = create_fill_jack_kcontrols(dapm->card, hdev);
1760 /* default set the Jack Pin switch to OFF */
1761 list_for_each_entry(pin, &hdmi->pin_list, head) {
1762 for (j = 0; j < pin->num_ports; j++)
1763 snd_soc_dapm_disable_pin(pin->ports[j].dapm,
1764 pin->ports[j].jack_pin);
1769 EXPORT_SYMBOL_GPL(hdac_hdmi_jack_port_init);
1771 int hdac_hdmi_jack_init(struct snd_soc_dai *dai, int device,
1772 struct snd_soc_jack *jack)
1774 struct snd_soc_component *component = dai->component;
1775 struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component);
1776 struct hdac_device *hdev = hdmi->hdev;
1777 struct hdac_hdmi_pcm *pcm;
1778 struct snd_pcm *snd_pcm;
1782 * this is a new PCM device, create new pcm and
1783 * add to the pcm list
1785 pcm = kzalloc(sizeof(*pcm), GFP_KERNEL);
1788 pcm->pcm_id = device;
1789 pcm->cvt = hdmi->dai_map[dai->id].cvt;
1790 pcm->jack_event = 0;
1792 mutex_init(&pcm->lock);
1793 INIT_LIST_HEAD(&pcm->port_list);
1794 snd_pcm = hdac_hdmi_get_pcm_from_id(dai->component->card, device);
1796 err = snd_hdac_add_chmap_ctls(snd_pcm, device, &hdmi->chmap);
1799 "chmap control add failed with err: %d for pcm: %d\n",
1806 list_add_tail(&pcm->head, &hdmi->pcm_list);
1810 EXPORT_SYMBOL_GPL(hdac_hdmi_jack_init);
1812 static void hdac_hdmi_present_sense_all_pins(struct hdac_device *hdev,
1813 struct hdac_hdmi_priv *hdmi, bool detect_pin_caps)
1816 struct hdac_hdmi_pin *pin;
1818 list_for_each_entry(pin, &hdmi->pin_list, head) {
1819 if (detect_pin_caps) {
1821 if (hdac_hdmi_get_port_len(hdev, pin->nid) == 0)
1822 pin->mst_capable = false;
1824 pin->mst_capable = true;
1827 for (i = 0; i < pin->num_ports; i++) {
1828 if (!pin->mst_capable && i > 0)
1831 hdac_hdmi_present_sense(pin, &pin->ports[i]);
1836 static int hdmi_codec_probe(struct snd_soc_component *component)
1838 struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component);
1839 struct hdac_device *hdev = hdmi->hdev;
1840 struct snd_soc_dapm_context *dapm =
1841 snd_soc_component_get_dapm(component);
1842 struct hdac_ext_link *hlink = NULL;
1845 hdmi->component = component;
1848 * hold the ref while we probe, also no need to drop the ref on
1849 * exit, we call pm_runtime_suspend() so that will do for us
1851 hlink = snd_hdac_ext_bus_get_link(hdev->bus, dev_name(&hdev->dev));
1853 dev_err(&hdev->dev, "hdac link not found\n");
1857 snd_hdac_ext_bus_link_get(hdev->bus, hlink);
1859 ret = create_fill_widget_route_map(dapm);
1863 aops.audio_ptr = hdev;
1864 ret = snd_hdac_acomp_register_notifier(hdev->bus, &aops);
1866 dev_err(&hdev->dev, "notifier register failed: err: %d\n", ret);
1870 hdac_hdmi_present_sense_all_pins(hdev, hdmi, true);
1871 /* Imp: Store the card pointer in hda_codec */
1872 hdmi->card = dapm->card->snd_card;
1875 * hdac_device core already sets the state to active and calls
1876 * get_noresume. So enable runtime and set the device to suspend.
1878 pm_runtime_enable(&hdev->dev);
1879 pm_runtime_put(&hdev->dev);
1880 pm_runtime_suspend(&hdev->dev);
1885 static void hdmi_codec_remove(struct snd_soc_component *component)
1887 struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component);
1888 struct hdac_device *hdev = hdmi->hdev;
1890 pm_runtime_disable(&hdev->dev);
1894 static int hdmi_codec_prepare(struct device *dev)
1896 struct hdac_device *hdev = dev_to_hdac_dev(dev);
1898 pm_runtime_get_sync(&hdev->dev);
1902 * codec_read is preferred over codec_write to set the power state.
1903 * This way verb is send to set the power state and response
1904 * is received. So setting power state is ensured without using loop
1905 * to read the state.
1907 snd_hdac_codec_read(hdev, hdev->afg, 0, AC_VERB_SET_POWER_STATE,
1913 static void hdmi_codec_complete(struct device *dev)
1915 struct hdac_device *hdev = dev_to_hdac_dev(dev);
1916 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1919 snd_hdac_codec_read(hdev, hdev->afg, 0, AC_VERB_SET_POWER_STATE,
1922 hdac_hdmi_skl_enable_all_pins(hdev);
1923 hdac_hdmi_skl_enable_dp12(hdev);
1926 * As the ELD notify callback request is not entertained while the
1927 * device is in suspend state. Need to manually check detection of
1928 * all pins here. pin capablity change is not support, so use the
1929 * already set pin caps.
1931 hdac_hdmi_present_sense_all_pins(hdev, hdmi, false);
1933 pm_runtime_put_sync(&hdev->dev);
1936 #define hdmi_codec_prepare NULL
1937 #define hdmi_codec_complete NULL
1940 static const struct snd_soc_component_driver hdmi_hda_codec = {
1941 .probe = hdmi_codec_probe,
1942 .remove = hdmi_codec_remove,
1943 .use_pmdown_time = 1,
1945 .non_legacy_dai_naming = 1,
1948 static void hdac_hdmi_get_chmap(struct hdac_device *hdev, int pcm_idx,
1949 unsigned char *chmap)
1951 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1952 struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
1954 memcpy(chmap, pcm->chmap, ARRAY_SIZE(pcm->chmap));
1957 static void hdac_hdmi_set_chmap(struct hdac_device *hdev, int pcm_idx,
1958 unsigned char *chmap, int prepared)
1960 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1961 struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
1962 struct hdac_hdmi_port *port;
1967 if (list_empty(&pcm->port_list))
1970 mutex_lock(&pcm->lock);
1971 pcm->chmap_set = true;
1972 memcpy(pcm->chmap, chmap, ARRAY_SIZE(pcm->chmap));
1973 list_for_each_entry(port, &pcm->port_list, head)
1975 hdac_hdmi_setup_audio_infoframe(hdev, pcm, port);
1976 mutex_unlock(&pcm->lock);
1979 static bool is_hdac_hdmi_pcm_attached(struct hdac_device *hdev, int pcm_idx)
1981 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1982 struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
1987 if (list_empty(&pcm->port_list))
1993 static int hdac_hdmi_get_spk_alloc(struct hdac_device *hdev, int pcm_idx)
1995 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1996 struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
1997 struct hdac_hdmi_port *port;
2002 if (list_empty(&pcm->port_list))
2005 port = list_first_entry(&pcm->port_list, struct hdac_hdmi_port, head);
2007 if (!port || !port->eld.eld_valid)
2010 return port->eld.info.spk_alloc;
2013 static struct hdac_hdmi_drv_data intel_icl_drv_data = {
2014 .vendor_nid = INTEL_VENDOR_NID_0x2,
2015 .port_map = icl_pin2port_map,
2016 .port_num = ARRAY_SIZE(icl_pin2port_map),
2019 static struct hdac_hdmi_drv_data intel_glk_drv_data = {
2020 .vendor_nid = INTEL_VENDOR_NID_0xb,
2023 static struct hdac_hdmi_drv_data intel_drv_data = {
2024 .vendor_nid = INTEL_VENDOR_NID_0x8,
2027 static int hdac_hdmi_dev_probe(struct hdac_device *hdev)
2029 struct hdac_hdmi_priv *hdmi_priv = NULL;
2030 struct snd_soc_dai_driver *hdmi_dais = NULL;
2031 struct hdac_ext_link *hlink = NULL;
2034 struct hdac_driver *hdrv = drv_to_hdac_driver(hdev->dev.driver);
2035 const struct hda_device_id *hdac_id = hdac_get_device_id(hdev, hdrv);
2037 /* hold the ref while we probe */
2038 hlink = snd_hdac_ext_bus_get_link(hdev->bus, dev_name(&hdev->dev));
2040 dev_err(&hdev->dev, "hdac link not found\n");
2044 snd_hdac_ext_bus_link_get(hdev->bus, hlink);
2046 hdmi_priv = devm_kzalloc(&hdev->dev, sizeof(*hdmi_priv), GFP_KERNEL);
2047 if (hdmi_priv == NULL)
2050 snd_hdac_register_chmap_ops(hdev, &hdmi_priv->chmap);
2051 hdmi_priv->chmap.ops.get_chmap = hdac_hdmi_get_chmap;
2052 hdmi_priv->chmap.ops.set_chmap = hdac_hdmi_set_chmap;
2053 hdmi_priv->chmap.ops.is_pcm_attached = is_hdac_hdmi_pcm_attached;
2054 hdmi_priv->chmap.ops.get_spk_alloc = hdac_hdmi_get_spk_alloc;
2055 hdmi_priv->hdev = hdev;
2060 if (hdac_id->driver_data)
2061 hdmi_priv->drv_data =
2062 (struct hdac_hdmi_drv_data *)hdac_id->driver_data;
2064 hdmi_priv->drv_data = &intel_drv_data;
2066 dev_set_drvdata(&hdev->dev, hdmi_priv);
2068 INIT_LIST_HEAD(&hdmi_priv->pin_list);
2069 INIT_LIST_HEAD(&hdmi_priv->cvt_list);
2070 INIT_LIST_HEAD(&hdmi_priv->pcm_list);
2071 mutex_init(&hdmi_priv->pin_mutex);
2074 * Turned off in the runtime_suspend during the first explicit
2075 * pm_runtime_suspend call.
2077 snd_hdac_display_power(hdev->bus, hdev->addr, true);
2079 ret = hdac_hdmi_parse_and_map_nid(hdev, &hdmi_dais, &num_dais);
2082 "Failed in parse and map nid with err: %d\n", ret);
2085 snd_hdac_refresh_widgets(hdev, true);
2087 /* ASoC specific initialization */
2088 ret = devm_snd_soc_register_component(&hdev->dev, &hdmi_hda_codec,
2089 hdmi_dais, num_dais);
2091 snd_hdac_ext_bus_link_put(hdev->bus, hlink);
2096 static int hdac_hdmi_dev_remove(struct hdac_device *hdev)
2098 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
2099 struct hdac_hdmi_pin *pin, *pin_next;
2100 struct hdac_hdmi_cvt *cvt, *cvt_next;
2101 struct hdac_hdmi_pcm *pcm, *pcm_next;
2102 struct hdac_hdmi_port *port, *port_next;
2105 snd_hdac_display_power(hdev->bus, hdev->addr, false);
2107 list_for_each_entry_safe(pcm, pcm_next, &hdmi->pcm_list, head) {
2109 if (list_empty(&pcm->port_list))
2112 list_for_each_entry_safe(port, port_next,
2113 &pcm->port_list, head)
2114 list_del(&port->head);
2116 list_del(&pcm->head);
2120 list_for_each_entry_safe(cvt, cvt_next, &hdmi->cvt_list, head) {
2121 list_del(&cvt->head);
2126 list_for_each_entry_safe(pin, pin_next, &hdmi->pin_list, head) {
2127 for (i = 0; i < pin->num_ports; i++)
2128 pin->ports[i].pin = NULL;
2130 list_del(&pin->head);
2139 * Power management sequences
2140 * ==========================
2142 * The following explains the PM handling of HDAC HDMI with its parent
2143 * device SKL and display power usage
2148 * 1. skl_probe_work() powers up the display (refcount++ -> 1)
2149 * 2. enumerates the codecs on the link
2150 * 3. powers down the display (refcount-- -> 0)
2152 * In HDAC HDMI probe,
2153 * 1. hdac_hdmi_dev_probe() powers up the display (refcount++ -> 1)
2154 * 2. probe the codec
2155 * 3. put the HDAC HDMI device to runtime suspend
2156 * 4. hdac_hdmi_runtime_suspend() powers down the display (refcount-- -> 0)
2158 * Once children are runtime suspended, SKL device also goes to runtime
2164 * 1. skl_runtime_resume() invoked
2165 * 2. hdac_hdmi_runtime_resume() powers up the display (refcount++ -> 1)
2167 * Close HDMI device,
2168 * 1. hdac_hdmi_runtime_suspend() powers down the display (refcount-- -> 0)
2169 * 2. skl_runtime_suspend() invoked
2171 * S0/S3 Cycle with playback in progress
2172 * -------------------------------------
2173 * When the device is opened for playback, the device is runtime active
2174 * already and the display refcount is 1 as explained above.
2177 * 1. hdmi_codec_prepare() invoke the runtime resume of codec which just
2178 * increments the PM runtime usage count of the codec since the device
2180 * 2. skl_suspend() powers down the display (refcount-- -> 0)
2183 * 1. skl_resume() powers up the display (refcount++ -> 1)
2184 * 2. hdmi_codec_complete() invokes the runtime suspend of codec which just
2185 * decrements the PM runtime usage count of the codec since the device
2188 * Once playback is stopped, the display refcount is set to 0 as explained
2189 * above in the HDMI playback sequence. The PM handlings are designed in
2190 * such way that to balance the refcount of display power when the codec
2191 * device put to S3 while playback is going on.
2193 * S0/S3 Cycle without playback in progress
2194 * ----------------------------------------
2196 * 1. hdmi_codec_prepare() invoke the runtime resume of codec
2197 * 2. skl_runtime_resume() invoked
2198 * 3. hdac_hdmi_runtime_resume() powers up the display (refcount++ -> 1)
2199 * 4. skl_suspend() powers down the display (refcount-- -> 0)
2202 * 1. skl_resume() powers up the display (refcount++ -> 1)
2203 * 2. hdmi_codec_complete() invokes the runtime suspend of codec
2204 * 3. hdac_hdmi_runtime_suspend() powers down the display (refcount-- -> 0)
2205 * 4. skl_runtime_suspend() invoked
2207 static int hdac_hdmi_runtime_suspend(struct device *dev)
2209 struct hdac_device *hdev = dev_to_hdac_dev(dev);
2210 struct hdac_bus *bus = hdev->bus;
2211 struct hdac_ext_link *hlink = NULL;
2213 dev_dbg(dev, "Enter: %s\n", __func__);
2215 /* controller may not have been initialized for the first time */
2221 * codec_read is preferred over codec_write to set the power state.
2222 * This way verb is send to set the power state and response
2223 * is received. So setting power state is ensured without using loop
2224 * to read the state.
2226 snd_hdac_codec_read(hdev, hdev->afg, 0, AC_VERB_SET_POWER_STATE,
2229 hlink = snd_hdac_ext_bus_get_link(bus, dev_name(dev));
2231 dev_err(dev, "hdac link not found\n");
2235 snd_hdac_ext_bus_link_put(bus, hlink);
2237 snd_hdac_display_power(bus, hdev->addr, false);
2242 static int hdac_hdmi_runtime_resume(struct device *dev)
2244 struct hdac_device *hdev = dev_to_hdac_dev(dev);
2245 struct hdac_bus *bus = hdev->bus;
2246 struct hdac_ext_link *hlink = NULL;
2248 dev_dbg(dev, "Enter: %s\n", __func__);
2250 /* controller may not have been initialized for the first time */
2254 hlink = snd_hdac_ext_bus_get_link(bus, dev_name(dev));
2256 dev_err(dev, "hdac link not found\n");
2260 snd_hdac_ext_bus_link_get(bus, hlink);
2262 snd_hdac_display_power(bus, hdev->addr, true);
2264 hdac_hdmi_skl_enable_all_pins(hdev);
2265 hdac_hdmi_skl_enable_dp12(hdev);
2268 snd_hdac_codec_read(hdev, hdev->afg, 0, AC_VERB_SET_POWER_STATE,
2274 #define hdac_hdmi_runtime_suspend NULL
2275 #define hdac_hdmi_runtime_resume NULL
2278 static const struct dev_pm_ops hdac_hdmi_pm = {
2279 SET_RUNTIME_PM_OPS(hdac_hdmi_runtime_suspend, hdac_hdmi_runtime_resume, NULL)
2280 .prepare = hdmi_codec_prepare,
2281 .complete = hdmi_codec_complete,
2284 static const struct hda_device_id hdmi_list[] = {
2285 HDA_CODEC_EXT_ENTRY(0x80862809, 0x100000, "Skylake HDMI", 0),
2286 HDA_CODEC_EXT_ENTRY(0x8086280a, 0x100000, "Broxton HDMI", 0),
2287 HDA_CODEC_EXT_ENTRY(0x8086280b, 0x100000, "Kabylake HDMI", 0),
2288 HDA_CODEC_EXT_ENTRY(0x8086280c, 0x100000, "Cannonlake HDMI",
2289 &intel_glk_drv_data),
2290 HDA_CODEC_EXT_ENTRY(0x8086280d, 0x100000, "Geminilake HDMI",
2291 &intel_glk_drv_data),
2292 HDA_CODEC_EXT_ENTRY(0x8086280f, 0x100000, "Icelake HDMI",
2293 &intel_icl_drv_data),
2297 MODULE_DEVICE_TABLE(hdaudio, hdmi_list);
2299 static struct hdac_driver hdmi_driver = {
2301 .name = "HDMI HDA Codec",
2302 .pm = &hdac_hdmi_pm,
2304 .id_table = hdmi_list,
2305 .probe = hdac_hdmi_dev_probe,
2306 .remove = hdac_hdmi_dev_remove,
2309 static int __init hdmi_init(void)
2311 return snd_hda_ext_driver_register(&hdmi_driver);
2314 static void __exit hdmi_exit(void)
2316 snd_hda_ext_driver_unregister(&hdmi_driver);
2319 module_init(hdmi_init);
2320 module_exit(hdmi_exit);
2322 MODULE_LICENSE("GPL v2");
2323 MODULE_DESCRIPTION("HDMI HD codec");
2324 MODULE_AUTHOR("Samreen Nilofer<samreen.nilofer@intel.com>");
2325 MODULE_AUTHOR("Subhransu S. Prusty<subhransu.s.prusty@intel.com>");