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_ext_device *edev;
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;
124 struct hdac_hdmi_priv {
125 struct hdac_hdmi_dai_port_map dai_map[HDA_MAX_CVTS];
126 struct list_head pin_list;
127 struct list_head cvt_list;
128 struct list_head pcm_list;
132 struct mutex pin_mutex;
133 struct hdac_chmap chmap;
136 static struct hdac_hdmi_pcm *
137 hdac_hdmi_get_pcm_from_cvt(struct hdac_hdmi_priv *hdmi,
138 struct hdac_hdmi_cvt *cvt)
140 struct hdac_hdmi_pcm *pcm = NULL;
142 list_for_each_entry(pcm, &hdmi->pcm_list, head) {
150 static void hdac_hdmi_jack_report(struct hdac_hdmi_pcm *pcm,
151 struct hdac_hdmi_port *port, bool is_connect)
153 struct hdac_ext_device *edev = port->pin->edev;
156 snd_soc_dapm_enable_pin(port->dapm, port->jack_pin);
158 snd_soc_dapm_disable_pin(port->dapm, port->jack_pin);
162 * Report Jack connect event when a device is connected
163 * for the first time where same PCM is attached to multiple
166 if (pcm->jack_event == 0) {
167 dev_dbg(&edev->hdac.dev,
168 "jack report for pcm=%d\n",
170 snd_soc_jack_report(pcm->jack, SND_JACK_AVOUT,
176 * Report Jack disconnect event when a device is disconnected
177 * is the only last connected device when same PCM is attached
180 if (pcm->jack_event == 1)
181 snd_soc_jack_report(pcm->jack, 0, SND_JACK_AVOUT);
182 if (pcm->jack_event > 0)
186 snd_soc_dapm_sync(port->dapm);
189 /* MST supported verbs */
191 * Get the no devices that can be connected to a port on the Pin widget.
193 static int hdac_hdmi_get_port_len(struct hdac_ext_device *hdac, hda_nid_t nid)
196 unsigned int type, param;
198 caps = get_wcaps(&hdac->hdac, nid);
199 type = get_wcaps_type(caps);
201 if (!(caps & AC_WCAP_DIGITAL) || (type != AC_WID_PIN))
204 param = snd_hdac_read_parm_uncached(&hdac->hdac, nid,
209 return param & AC_DEV_LIST_LEN_MASK;
213 * Get the port entry select on the pin. Return the port entry
214 * id selected on the pin. Return 0 means the first port entry
215 * is selected or MST is not supported.
217 static int hdac_hdmi_port_select_get(struct hdac_ext_device *hdac,
218 struct hdac_hdmi_port *port)
220 return snd_hdac_codec_read(&hdac->hdac, port->pin->nid,
221 0, AC_VERB_GET_DEVICE_SEL, 0);
225 * Sets the selected port entry for the configuring Pin widget verb.
226 * returns error if port set is not equal to port get otherwise success
228 static int hdac_hdmi_port_select_set(struct hdac_ext_device *hdac,
229 struct hdac_hdmi_port *port)
233 if (!port->pin->mst_capable)
236 /* AC_PAR_DEVLIST_LEN is 0 based. */
237 num_ports = hdac_hdmi_get_port_len(hdac, port->pin->nid);
242 * Device List Length is a 0 based integer value indicating the
243 * number of sink device that a MST Pin Widget can support.
245 if (num_ports + 1 < port->id)
248 snd_hdac_codec_write(&hdac->hdac, port->pin->nid, 0,
249 AC_VERB_SET_DEVICE_SEL, port->id);
251 if (port->id != hdac_hdmi_port_select_get(hdac, port))
254 dev_dbg(&hdac->hdac.dev, "Selected the port=%d\n", port->id);
259 static struct hdac_hdmi_pcm *get_hdmi_pcm_from_id(struct hdac_hdmi_priv *hdmi,
262 struct hdac_hdmi_pcm *pcm;
264 list_for_each_entry(pcm, &hdmi->pcm_list, head) {
265 if (pcm->pcm_id == pcm_idx)
272 static inline struct hdac_ext_device *to_hda_ext_device(struct device *dev)
274 struct hdac_device *hdac = dev_to_hdac_dev(dev);
276 return to_ehdac_device(hdac);
279 static unsigned int sad_format(const u8 *sad)
281 return ((sad[0] >> 0x3) & 0x1f);
284 static unsigned int sad_sample_bits_lpcm(const u8 *sad)
289 static int hdac_hdmi_eld_limit_formats(struct snd_pcm_runtime *runtime,
292 u64 formats = SNDRV_PCM_FMTBIT_S16;
294 const u8 *sad, *eld_buf = eld;
296 sad = drm_eld_sad(eld_buf);
298 goto format_constraint;
300 for (i = drm_eld_sad_count(eld_buf); i > 0; i--, sad += 3) {
301 if (sad_format(sad) == 1) { /* AUDIO_CODING_TYPE_LPCM */
304 * the controller support 20 and 24 bits in 32 bit
305 * container so we set S32
307 if (sad_sample_bits_lpcm(sad) & 0x6)
308 formats |= SNDRV_PCM_FMTBIT_S32;
313 return snd_pcm_hw_constraint_mask64(runtime, SNDRV_PCM_HW_PARAM_FORMAT,
319 hdac_hdmi_set_dip_index(struct hdac_ext_device *hdac, hda_nid_t pin_nid,
320 int packet_index, int byte_index)
324 val = (packet_index << 5) | (byte_index & 0x1f);
326 snd_hdac_codec_write(&hdac->hdac, pin_nid, 0,
327 AC_VERB_SET_HDMI_DIP_INDEX, val);
330 struct dp_audio_infoframe {
333 u8 ver; /* 0x11 << 2 */
335 u8 CC02_CT47; /* match with HDMI infoframe from this on */
339 u8 LFEPBL01_LSV36_DM_INH7;
342 static int hdac_hdmi_setup_audio_infoframe(struct hdac_ext_device *hdac,
343 struct hdac_hdmi_pcm *pcm, struct hdac_hdmi_port *port)
345 uint8_t buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_AUDIO_INFOFRAME_SIZE];
346 struct hdmi_audio_infoframe frame;
347 struct hdac_hdmi_pin *pin = port->pin;
348 struct dp_audio_infoframe dp_ai;
349 struct hdac_hdmi_priv *hdmi = hdac->private_data;
350 struct hdac_hdmi_cvt *cvt = pcm->cvt;
358 ca = snd_hdac_channel_allocation(&hdac->hdac, port->eld.info.spk_alloc,
359 pcm->channels, pcm->chmap_set, true, pcm->chmap);
361 channels = snd_hdac_get_active_channels(ca);
362 hdmi->chmap.ops.set_channel_count(&hdac->hdac, cvt->nid, channels);
364 snd_hdac_setup_channel_mapping(&hdmi->chmap, pin->nid, false, ca,
365 pcm->channels, pcm->chmap, pcm->chmap_set);
367 eld_buf = port->eld.eld_buffer;
368 conn_type = drm_eld_get_conn_type(eld_buf);
371 case DRM_ELD_CONN_TYPE_HDMI:
372 hdmi_audio_infoframe_init(&frame);
374 frame.channels = channels;
375 frame.channel_allocation = ca;
377 ret = hdmi_audio_infoframe_pack(&frame, buffer, sizeof(buffer));
383 case DRM_ELD_CONN_TYPE_DP:
384 memset(&dp_ai, 0, sizeof(dp_ai));
387 dp_ai.ver = 0x11 << 2;
388 dp_ai.CC02_CT47 = channels - 1;
395 dev_err(&hdac->hdac.dev, "Invalid connection type: %d\n",
400 /* stop infoframe transmission */
401 hdac_hdmi_set_dip_index(hdac, pin->nid, 0x0, 0x0);
402 snd_hdac_codec_write(&hdac->hdac, pin->nid, 0,
403 AC_VERB_SET_HDMI_DIP_XMIT, AC_DIPXMIT_DISABLE);
406 /* Fill infoframe. Index auto-incremented */
407 hdac_hdmi_set_dip_index(hdac, pin->nid, 0x0, 0x0);
408 if (conn_type == DRM_ELD_CONN_TYPE_HDMI) {
409 for (i = 0; i < sizeof(buffer); i++)
410 snd_hdac_codec_write(&hdac->hdac, pin->nid, 0,
411 AC_VERB_SET_HDMI_DIP_DATA, buffer[i]);
413 for (i = 0; i < sizeof(dp_ai); i++)
414 snd_hdac_codec_write(&hdac->hdac, pin->nid, 0,
415 AC_VERB_SET_HDMI_DIP_DATA, dip[i]);
418 /* Start infoframe */
419 hdac_hdmi_set_dip_index(hdac, pin->nid, 0x0, 0x0);
420 snd_hdac_codec_write(&hdac->hdac, pin->nid, 0,
421 AC_VERB_SET_HDMI_DIP_XMIT, AC_DIPXMIT_BEST);
426 static int hdac_hdmi_set_tdm_slot(struct snd_soc_dai *dai,
427 unsigned int tx_mask, unsigned int rx_mask,
428 int slots, int slot_width)
430 struct hdac_ext_device *edev = snd_soc_dai_get_drvdata(dai);
431 struct hdac_hdmi_priv *hdmi = edev->private_data;
432 struct hdac_hdmi_dai_port_map *dai_map;
433 struct hdac_hdmi_pcm *pcm;
435 dev_dbg(&edev->hdac.dev, "%s: strm_tag: %d\n", __func__, tx_mask);
437 dai_map = &hdmi->dai_map[dai->id];
439 pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, dai_map->cvt);
442 pcm->stream_tag = (tx_mask << 4);
447 static int hdac_hdmi_set_hw_params(struct snd_pcm_substream *substream,
448 struct snd_pcm_hw_params *hparams, struct snd_soc_dai *dai)
450 struct hdac_ext_device *hdac = snd_soc_dai_get_drvdata(dai);
451 struct hdac_hdmi_priv *hdmi = hdac->private_data;
452 struct hdac_hdmi_dai_port_map *dai_map;
453 struct hdac_hdmi_port *port;
454 struct hdac_hdmi_pcm *pcm;
457 dai_map = &hdmi->dai_map[dai->id];
458 port = dai_map->port;
463 if ((!port->eld.monitor_present) || (!port->eld.eld_valid)) {
464 dev_err(&hdac->hdac.dev,
465 "device is not configured for this pin:port%d:%d\n",
466 port->pin->nid, port->id);
470 format = snd_hdac_calc_stream_format(params_rate(hparams),
471 params_channels(hparams), params_format(hparams),
472 dai->driver->playback.sig_bits, 0);
474 pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, dai_map->cvt);
478 pcm->format = format;
479 pcm->channels = params_channels(hparams);
484 static int hdac_hdmi_query_port_connlist(struct hdac_ext_device *hdac,
485 struct hdac_hdmi_pin *pin,
486 struct hdac_hdmi_port *port)
488 if (!(get_wcaps(&hdac->hdac, pin->nid) & AC_WCAP_CONN_LIST)) {
489 dev_warn(&hdac->hdac.dev,
490 "HDMI: pin %d wcaps %#x does not support connection list\n",
491 pin->nid, get_wcaps(&hdac->hdac, pin->nid));
495 if (hdac_hdmi_port_select_set(hdac, port) < 0)
498 port->num_mux_nids = snd_hdac_get_connections(&hdac->hdac, pin->nid,
499 port->mux_nids, HDA_MAX_CONNECTIONS);
500 if (port->num_mux_nids == 0)
501 dev_warn(&hdac->hdac.dev,
502 "No connections found for pin:port %d:%d\n",
505 dev_dbg(&hdac->hdac.dev, "num_mux_nids %d for pin:port %d:%d\n",
506 port->num_mux_nids, pin->nid, port->id);
508 return port->num_mux_nids;
512 * Query pcm list and return port to which stream is routed.
514 * Also query connection list of the pin, to validate the cvt to port map.
516 * Same stream rendering to multiple ports simultaneously can be done
517 * possibly, but not supported for now in driver. So return the first port
520 static struct hdac_hdmi_port *hdac_hdmi_get_port_from_cvt(
521 struct hdac_ext_device *edev,
522 struct hdac_hdmi_priv *hdmi,
523 struct hdac_hdmi_cvt *cvt)
525 struct hdac_hdmi_pcm *pcm;
526 struct hdac_hdmi_port *port = NULL;
529 list_for_each_entry(pcm, &hdmi->pcm_list, head) {
530 if (pcm->cvt == cvt) {
531 if (list_empty(&pcm->port_list))
534 list_for_each_entry(port, &pcm->port_list, head) {
535 mutex_lock(&pcm->lock);
536 ret = hdac_hdmi_query_port_connlist(edev,
538 mutex_unlock(&pcm->lock);
542 for (i = 0; i < port->num_mux_nids; i++) {
543 if (port->mux_nids[i] == cvt->nid &&
544 port->eld.monitor_present &&
556 * This tries to get a valid pin and set the HW constraints based on the
557 * ELD. Even if a valid pin is not found return success so that device open
560 static int hdac_hdmi_pcm_open(struct snd_pcm_substream *substream,
561 struct snd_soc_dai *dai)
563 struct hdac_ext_device *hdac = snd_soc_dai_get_drvdata(dai);
564 struct hdac_hdmi_priv *hdmi = hdac->private_data;
565 struct hdac_hdmi_dai_port_map *dai_map;
566 struct hdac_hdmi_cvt *cvt;
567 struct hdac_hdmi_port *port;
570 dai_map = &hdmi->dai_map[dai->id];
573 port = hdac_hdmi_get_port_from_cvt(hdac, hdmi, cvt);
576 * To make PA and other userland happy.
577 * userland scans devices so returning error does not help.
581 if ((!port->eld.monitor_present) ||
582 (!port->eld.eld_valid)) {
584 dev_warn(&hdac->hdac.dev,
585 "Failed: present?:%d ELD valid?:%d pin:port: %d:%d\n",
586 port->eld.monitor_present, port->eld.eld_valid,
587 port->pin->nid, port->id);
592 dai_map->port = port;
594 ret = hdac_hdmi_eld_limit_formats(substream->runtime,
595 port->eld.eld_buffer);
599 return snd_pcm_hw_constraint_eld(substream->runtime,
600 port->eld.eld_buffer);
603 static void hdac_hdmi_pcm_close(struct snd_pcm_substream *substream,
604 struct snd_soc_dai *dai)
606 struct hdac_ext_device *hdac = snd_soc_dai_get_drvdata(dai);
607 struct hdac_hdmi_priv *hdmi = hdac->private_data;
608 struct hdac_hdmi_dai_port_map *dai_map;
609 struct hdac_hdmi_pcm *pcm;
611 dai_map = &hdmi->dai_map[dai->id];
613 pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, dai_map->cvt);
616 mutex_lock(&pcm->lock);
617 pcm->chmap_set = false;
618 memset(pcm->chmap, 0, sizeof(pcm->chmap));
620 mutex_unlock(&pcm->lock);
624 dai_map->port = NULL;
628 hdac_hdmi_query_cvt_params(struct hdac_device *hdac, struct hdac_hdmi_cvt *cvt)
631 struct hdac_ext_device *edev = to_ehdac_device(hdac);
632 struct hdac_hdmi_priv *hdmi = edev->private_data;
635 chans = get_wcaps(hdac, cvt->nid);
636 chans = get_wcaps_channels(chans);
638 cvt->params.channels_min = 2;
640 cvt->params.channels_max = chans;
641 if (chans > hdmi->chmap.channels_max)
642 hdmi->chmap.channels_max = chans;
644 err = snd_hdac_query_supported_pcm(hdac, cvt->nid,
646 &cvt->params.formats,
647 &cvt->params.maxbps);
650 "Failed to query pcm params for nid %d: %d\n",
656 static int hdac_hdmi_fill_widget_info(struct device *dev,
657 struct snd_soc_dapm_widget *w, enum snd_soc_dapm_type id,
658 void *priv, const char *wname, const char *stream,
659 struct snd_kcontrol_new *wc, int numkc,
660 int (*event)(struct snd_soc_dapm_widget *,
661 struct snd_kcontrol *, int), unsigned short event_flags)
664 w->name = devm_kstrdup(dev, wname, GFP_KERNEL);
669 w->reg = SND_SOC_NOPM;
671 w->kcontrol_news = wc;
672 w->num_kcontrols = numkc;
675 w->event_flags = event_flags;
680 static void hdac_hdmi_fill_route(struct snd_soc_dapm_route *route,
681 const char *sink, const char *control, const char *src,
682 int (*handler)(struct snd_soc_dapm_widget *src,
683 struct snd_soc_dapm_widget *sink))
687 route->control = control;
688 route->connected = handler;
691 static struct hdac_hdmi_pcm *hdac_hdmi_get_pcm(struct hdac_ext_device *edev,
692 struct hdac_hdmi_port *port)
694 struct hdac_hdmi_priv *hdmi = edev->private_data;
695 struct hdac_hdmi_pcm *pcm = NULL;
696 struct hdac_hdmi_port *p;
698 list_for_each_entry(pcm, &hdmi->pcm_list, head) {
699 if (list_empty(&pcm->port_list))
702 list_for_each_entry(p, &pcm->port_list, head) {
703 if (p->id == port->id && port->pin == p->pin)
711 static void hdac_hdmi_set_power_state(struct hdac_ext_device *edev,
712 hda_nid_t nid, unsigned int pwr_state)
714 if (get_wcaps(&edev->hdac, nid) & AC_WCAP_POWER) {
715 if (!snd_hdac_check_power_state(&edev->hdac, nid, pwr_state))
716 snd_hdac_codec_write(&edev->hdac, nid, 0,
717 AC_VERB_SET_POWER_STATE, pwr_state);
721 static void hdac_hdmi_set_amp(struct hdac_ext_device *edev,
722 hda_nid_t nid, int val)
724 if (get_wcaps(&edev->hdac, nid) & AC_WCAP_OUT_AMP)
725 snd_hdac_codec_write(&edev->hdac, nid, 0,
726 AC_VERB_SET_AMP_GAIN_MUTE, val);
730 static int hdac_hdmi_pin_output_widget_event(struct snd_soc_dapm_widget *w,
731 struct snd_kcontrol *kc, int event)
733 struct hdac_hdmi_port *port = w->priv;
734 struct hdac_ext_device *edev = to_hda_ext_device(w->dapm->dev);
735 struct hdac_hdmi_pcm *pcm;
737 dev_dbg(&edev->hdac.dev, "%s: widget: %s event: %x\n",
738 __func__, w->name, event);
740 pcm = hdac_hdmi_get_pcm(edev, port);
744 /* set the device if pin is mst_capable */
745 if (hdac_hdmi_port_select_set(edev, port) < 0)
749 case SND_SOC_DAPM_PRE_PMU:
750 hdac_hdmi_set_power_state(edev, port->pin->nid, AC_PWRST_D0);
752 /* Enable out path for this pin widget */
753 snd_hdac_codec_write(&edev->hdac, port->pin->nid, 0,
754 AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT);
756 hdac_hdmi_set_amp(edev, port->pin->nid, AMP_OUT_UNMUTE);
758 return hdac_hdmi_setup_audio_infoframe(edev, pcm, port);
760 case SND_SOC_DAPM_POST_PMD:
761 hdac_hdmi_set_amp(edev, port->pin->nid, AMP_OUT_MUTE);
763 /* Disable out path for this pin widget */
764 snd_hdac_codec_write(&edev->hdac, port->pin->nid, 0,
765 AC_VERB_SET_PIN_WIDGET_CONTROL, 0);
767 hdac_hdmi_set_power_state(edev, port->pin->nid, AC_PWRST_D3);
775 static int hdac_hdmi_cvt_output_widget_event(struct snd_soc_dapm_widget *w,
776 struct snd_kcontrol *kc, int event)
778 struct hdac_hdmi_cvt *cvt = w->priv;
779 struct hdac_ext_device *edev = to_hda_ext_device(w->dapm->dev);
780 struct hdac_hdmi_priv *hdmi = edev->private_data;
781 struct hdac_hdmi_pcm *pcm;
783 dev_dbg(&edev->hdac.dev, "%s: widget: %s event: %x\n",
784 __func__, w->name, event);
786 pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, cvt);
791 case SND_SOC_DAPM_PRE_PMU:
792 hdac_hdmi_set_power_state(edev, cvt->nid, AC_PWRST_D0);
794 /* Enable transmission */
795 snd_hdac_codec_write(&edev->hdac, cvt->nid, 0,
796 AC_VERB_SET_DIGI_CONVERT_1, 1);
798 /* Category Code (CC) to zero */
799 snd_hdac_codec_write(&edev->hdac, cvt->nid, 0,
800 AC_VERB_SET_DIGI_CONVERT_2, 0);
802 snd_hdac_codec_write(&edev->hdac, cvt->nid, 0,
803 AC_VERB_SET_CHANNEL_STREAMID, pcm->stream_tag);
804 snd_hdac_codec_write(&edev->hdac, cvt->nid, 0,
805 AC_VERB_SET_STREAM_FORMAT, pcm->format);
808 case SND_SOC_DAPM_POST_PMD:
809 snd_hdac_codec_write(&edev->hdac, cvt->nid, 0,
810 AC_VERB_SET_CHANNEL_STREAMID, 0);
811 snd_hdac_codec_write(&edev->hdac, cvt->nid, 0,
812 AC_VERB_SET_STREAM_FORMAT, 0);
814 hdac_hdmi_set_power_state(edev, cvt->nid, AC_PWRST_D3);
822 static int hdac_hdmi_pin_mux_widget_event(struct snd_soc_dapm_widget *w,
823 struct snd_kcontrol *kc, int event)
825 struct hdac_hdmi_port *port = w->priv;
826 struct hdac_ext_device *edev = to_hda_ext_device(w->dapm->dev);
829 dev_dbg(&edev->hdac.dev, "%s: widget: %s event: %x\n",
830 __func__, w->name, event);
833 kc = w->kcontrols[0];
835 mux_idx = dapm_kcontrol_get_value(kc);
837 /* set the device if pin is mst_capable */
838 if (hdac_hdmi_port_select_set(edev, port) < 0)
842 snd_hdac_codec_write(&edev->hdac, port->pin->nid, 0,
843 AC_VERB_SET_CONNECT_SEL, (mux_idx - 1));
850 * Based on user selection, map the PINs with the PCMs.
852 static int hdac_hdmi_set_pin_port_mux(struct snd_kcontrol *kcontrol,
853 struct snd_ctl_elem_value *ucontrol)
856 struct hdac_hdmi_port *p, *p_next;
857 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
858 struct snd_soc_dapm_widget *w = snd_soc_dapm_kcontrol_widget(kcontrol);
859 struct snd_soc_dapm_context *dapm = w->dapm;
860 struct hdac_hdmi_port *port = w->priv;
861 struct hdac_ext_device *edev = to_hda_ext_device(dapm->dev);
862 struct hdac_hdmi_priv *hdmi = edev->private_data;
863 struct hdac_hdmi_pcm *pcm = NULL;
864 const char *cvt_name = e->texts[ucontrol->value.enumerated.item[0]];
866 ret = snd_soc_dapm_put_enum_double(kcontrol, ucontrol);
873 mutex_lock(&hdmi->pin_mutex);
874 list_for_each_entry(pcm, &hdmi->pcm_list, head) {
875 if (list_empty(&pcm->port_list))
878 list_for_each_entry_safe(p, p_next, &pcm->port_list, head) {
879 if (p == port && p->id == port->id &&
880 p->pin == port->pin) {
881 hdac_hdmi_jack_report(pcm, port, false);
888 * Jack status is not reported during device probe as the
889 * PCMs are not registered by then. So report it here.
891 list_for_each_entry(pcm, &hdmi->pcm_list, head) {
892 if (!strcmp(cvt_name, pcm->cvt->name)) {
893 list_add_tail(&port->head, &pcm->port_list);
894 if (port->eld.monitor_present && port->eld.eld_valid) {
895 hdac_hdmi_jack_report(pcm, port, true);
896 mutex_unlock(&hdmi->pin_mutex);
901 mutex_unlock(&hdmi->pin_mutex);
907 * Ideally the Mux inputs should be based on the num_muxs enumerated, but
908 * the display driver seem to be programming the connection list for the pin
911 * So programming all the possible inputs for the mux, the user has to take
912 * care of selecting the right one and leaving all other inputs selected to
915 static int hdac_hdmi_create_pin_port_muxs(struct hdac_ext_device *edev,
916 struct hdac_hdmi_port *port,
917 struct snd_soc_dapm_widget *widget,
918 const char *widget_name)
920 struct hdac_hdmi_priv *hdmi = edev->private_data;
921 struct hdac_hdmi_pin *pin = port->pin;
922 struct snd_kcontrol_new *kc;
923 struct hdac_hdmi_cvt *cvt;
925 char kc_name[NAME_SIZE];
926 char mux_items[NAME_SIZE];
927 /* To hold inputs to the Pin mux */
928 char *items[HDA_MAX_CONNECTIONS];
930 int num_items = hdmi->num_cvt + 1;
932 kc = devm_kzalloc(&edev->hdac.dev, sizeof(*kc), GFP_KERNEL);
936 se = devm_kzalloc(&edev->hdac.dev, sizeof(*se), GFP_KERNEL);
940 sprintf(kc_name, "Pin %d port %d Input", pin->nid, port->id);
941 kc->name = devm_kstrdup(&edev->hdac.dev, kc_name, GFP_KERNEL);
945 kc->private_value = (long)se;
946 kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
948 kc->info = snd_soc_info_enum_double;
949 kc->put = hdac_hdmi_set_pin_port_mux;
950 kc->get = snd_soc_dapm_get_enum_double;
952 se->reg = SND_SOC_NOPM;
954 /* enum texts: ["NONE", "cvt #", "cvt #", ...] */
955 se->items = num_items;
956 se->mask = roundup_pow_of_two(se->items) - 1;
958 sprintf(mux_items, "NONE");
959 items[i] = devm_kstrdup(&edev->hdac.dev, mux_items, GFP_KERNEL);
963 list_for_each_entry(cvt, &hdmi->cvt_list, head) {
965 sprintf(mux_items, "cvt %d", cvt->nid);
966 items[i] = devm_kstrdup(&edev->hdac.dev, mux_items, GFP_KERNEL);
971 se->texts = devm_kmemdup(&edev->hdac.dev, items,
972 (num_items * sizeof(char *)), GFP_KERNEL);
976 return hdac_hdmi_fill_widget_info(&edev->hdac.dev, widget,
977 snd_soc_dapm_mux, port, widget_name, NULL, kc, 1,
978 hdac_hdmi_pin_mux_widget_event,
979 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_REG);
982 /* Add cvt <- input <- mux route map */
983 static void hdac_hdmi_add_pinmux_cvt_route(struct hdac_ext_device *edev,
984 struct snd_soc_dapm_widget *widgets,
985 struct snd_soc_dapm_route *route, int rindex)
987 struct hdac_hdmi_priv *hdmi = edev->private_data;
988 const struct snd_kcontrol_new *kc;
990 int mux_index = hdmi->num_cvt + hdmi->num_ports;
993 for (i = 0; i < hdmi->num_ports; i++) {
994 kc = widgets[mux_index].kcontrol_news;
995 se = (struct soc_enum *)kc->private_value;
996 for (j = 0; j < hdmi->num_cvt; j++) {
997 hdac_hdmi_fill_route(&route[rindex],
998 widgets[mux_index].name,
1000 widgets[j].name, NULL);
1010 * Widgets are added in the below sequence
1011 * Converter widgets for num converters enumerated
1012 * Pin-port widgets for num ports for Pins enumerated
1013 * Pin-port mux widgets to represent connenction list of pin widget
1015 * For each port, one Mux and One output widget is added
1016 * Total widgets elements = num_cvt + (num_ports * 2);
1018 * Routes are added as below:
1019 * pin-port mux -> pin (based on num_ports)
1020 * cvt -> "Input sel control" -> pin-port_mux
1022 * Total route elements:
1023 * num_ports + (pin_muxes * num_cvt)
1025 static int create_fill_widget_route_map(struct snd_soc_dapm_context *dapm)
1027 struct snd_soc_dapm_widget *widgets;
1028 struct snd_soc_dapm_route *route;
1029 struct hdac_ext_device *edev = to_hda_ext_device(dapm->dev);
1030 struct hdac_hdmi_priv *hdmi = edev->private_data;
1031 struct snd_soc_dai_driver *dai_drv = dapm->component->dai_drv;
1032 char widget_name[NAME_SIZE];
1033 struct hdac_hdmi_cvt *cvt;
1034 struct hdac_hdmi_pin *pin;
1035 int ret, i = 0, num_routes = 0, j;
1037 if (list_empty(&hdmi->cvt_list) || list_empty(&hdmi->pin_list))
1040 widgets = devm_kzalloc(dapm->dev, (sizeof(*widgets) *
1041 ((2 * hdmi->num_ports) + hdmi->num_cvt)),
1047 /* DAPM widgets to represent each converter widget */
1048 list_for_each_entry(cvt, &hdmi->cvt_list, head) {
1049 sprintf(widget_name, "Converter %d", cvt->nid);
1050 ret = hdac_hdmi_fill_widget_info(dapm->dev, &widgets[i],
1051 snd_soc_dapm_aif_in, cvt,
1052 widget_name, dai_drv[i].playback.stream_name, NULL, 0,
1053 hdac_hdmi_cvt_output_widget_event,
1054 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD);
1060 list_for_each_entry(pin, &hdmi->pin_list, head) {
1061 for (j = 0; j < pin->num_ports; j++) {
1062 sprintf(widget_name, "hif%d-%d Output",
1063 pin->nid, pin->ports[j].id);
1064 ret = hdac_hdmi_fill_widget_info(dapm->dev, &widgets[i],
1065 snd_soc_dapm_output, &pin->ports[j],
1066 widget_name, NULL, NULL, 0,
1067 hdac_hdmi_pin_output_widget_event,
1068 SND_SOC_DAPM_PRE_PMU |
1069 SND_SOC_DAPM_POST_PMD);
1072 pin->ports[j].output_pin = widgets[i].name;
1077 /* DAPM widgets to represent the connection list to pin widget */
1078 list_for_each_entry(pin, &hdmi->pin_list, head) {
1079 for (j = 0; j < pin->num_ports; j++) {
1080 sprintf(widget_name, "Pin%d-Port%d Mux",
1081 pin->nid, pin->ports[j].id);
1082 ret = hdac_hdmi_create_pin_port_muxs(edev,
1083 &pin->ports[j], &widgets[i],
1089 /* For cvt to pin_mux mapping */
1090 num_routes += hdmi->num_cvt;
1092 /* For pin_mux to pin mapping */
1097 route = devm_kzalloc(dapm->dev, (sizeof(*route) * num_routes),
1103 /* Add pin <- NULL <- mux route map */
1104 list_for_each_entry(pin, &hdmi->pin_list, head) {
1105 for (j = 0; j < pin->num_ports; j++) {
1106 int sink_index = i + hdmi->num_cvt;
1107 int src_index = sink_index + pin->num_ports *
1110 hdac_hdmi_fill_route(&route[i],
1111 widgets[sink_index].name, NULL,
1112 widgets[src_index].name, NULL);
1117 hdac_hdmi_add_pinmux_cvt_route(edev, widgets, route, i);
1119 snd_soc_dapm_new_controls(dapm, widgets,
1120 ((2 * hdmi->num_ports) + hdmi->num_cvt));
1122 snd_soc_dapm_add_routes(dapm, route, num_routes);
1123 snd_soc_dapm_new_widgets(dapm->card);
1129 static int hdac_hdmi_init_dai_map(struct hdac_ext_device *edev)
1131 struct hdac_hdmi_priv *hdmi = edev->private_data;
1132 struct hdac_hdmi_dai_port_map *dai_map;
1133 struct hdac_hdmi_cvt *cvt;
1136 if (list_empty(&hdmi->cvt_list))
1139 list_for_each_entry(cvt, &hdmi->cvt_list, head) {
1140 dai_map = &hdmi->dai_map[dai_id];
1141 dai_map->dai_id = dai_id;
1146 if (dai_id == HDA_MAX_CVTS) {
1147 dev_warn(&edev->hdac.dev,
1148 "Max dais supported: %d\n", dai_id);
1156 static int hdac_hdmi_add_cvt(struct hdac_ext_device *edev, hda_nid_t nid)
1158 struct hdac_hdmi_priv *hdmi = edev->private_data;
1159 struct hdac_hdmi_cvt *cvt;
1160 char name[NAME_SIZE];
1162 cvt = kzalloc(sizeof(*cvt), GFP_KERNEL);
1167 sprintf(name, "cvt %d", cvt->nid);
1168 cvt->name = kstrdup(name, GFP_KERNEL);
1170 list_add_tail(&cvt->head, &hdmi->cvt_list);
1173 return hdac_hdmi_query_cvt_params(&edev->hdac, cvt);
1176 static int hdac_hdmi_parse_eld(struct hdac_ext_device *edev,
1177 struct hdac_hdmi_port *port)
1179 unsigned int ver, mnl;
1181 ver = (port->eld.eld_buffer[DRM_ELD_VER] & DRM_ELD_VER_MASK)
1182 >> DRM_ELD_VER_SHIFT;
1184 if (ver != ELD_VER_CEA_861D && ver != ELD_VER_PARTIAL) {
1185 dev_err(&edev->hdac.dev, "HDMI: Unknown ELD version %d\n", ver);
1189 mnl = (port->eld.eld_buffer[DRM_ELD_CEA_EDID_VER_MNL] &
1190 DRM_ELD_MNL_MASK) >> DRM_ELD_MNL_SHIFT;
1192 if (mnl > ELD_MAX_MNL) {
1193 dev_err(&edev->hdac.dev, "HDMI: MNL Invalid %d\n", mnl);
1197 port->eld.info.spk_alloc = port->eld.eld_buffer[DRM_ELD_SPEAKER];
1202 static void hdac_hdmi_present_sense(struct hdac_hdmi_pin *pin,
1203 struct hdac_hdmi_port *port)
1205 struct hdac_ext_device *edev = pin->edev;
1206 struct hdac_hdmi_priv *hdmi = edev->private_data;
1207 struct hdac_hdmi_pcm *pcm;
1215 * In case of non MST pin, get_eld info API expectes port
1218 mutex_lock(&hdmi->pin_mutex);
1219 port->eld.monitor_present = false;
1221 if (pin->mst_capable)
1224 size = snd_hdac_acomp_get_eld(&edev->hdac, pin->nid, port_id,
1225 &port->eld.monitor_present,
1226 port->eld.eld_buffer,
1230 size = min(size, ELD_MAX_SIZE);
1231 if (hdac_hdmi_parse_eld(edev, port) < 0)
1236 port->eld.eld_valid = true;
1237 port->eld.eld_size = size;
1239 port->eld.eld_valid = false;
1240 port->eld.eld_size = 0;
1243 pcm = hdac_hdmi_get_pcm(edev, port);
1245 if (!port->eld.monitor_present || !port->eld.eld_valid) {
1247 dev_err(&edev->hdac.dev, "%s: disconnect for pin:port %d:%d\n",
1248 __func__, pin->nid, port->id);
1251 * PCMs are not registered during device probe, so don't
1252 * report jack here. It will be done in usermode mux
1256 hdac_hdmi_jack_report(pcm, port, false);
1258 mutex_unlock(&hdmi->pin_mutex);
1262 if (port->eld.monitor_present && port->eld.eld_valid) {
1264 hdac_hdmi_jack_report(pcm, port, true);
1266 print_hex_dump_debug("ELD: ", DUMP_PREFIX_OFFSET, 16, 1,
1267 port->eld.eld_buffer, port->eld.eld_size, false);
1270 mutex_unlock(&hdmi->pin_mutex);
1273 static int hdac_hdmi_add_ports(struct hdac_hdmi_priv *hdmi,
1274 struct hdac_hdmi_pin *pin)
1276 struct hdac_hdmi_port *ports;
1277 int max_ports = HDA_MAX_PORTS;
1281 * FIXME: max_port may vary for each platform, so pass this as
1282 * as driver data or query from i915 interface when this API is
1286 ports = kcalloc(max_ports, sizeof(*ports), GFP_KERNEL);
1290 for (i = 0; i < max_ports; i++) {
1295 pin->num_ports = max_ports;
1299 static int hdac_hdmi_add_pin(struct hdac_ext_device *edev, hda_nid_t nid)
1301 struct hdac_hdmi_priv *hdmi = edev->private_data;
1302 struct hdac_hdmi_pin *pin;
1305 pin = kzalloc(sizeof(*pin), GFP_KERNEL);
1310 pin->mst_capable = false;
1312 ret = hdac_hdmi_add_ports(hdmi, pin);
1316 list_add_tail(&pin->head, &hdmi->pin_list);
1318 hdmi->num_ports += pin->num_ports;
1323 #define INTEL_VENDOR_NID 0x08
1324 #define INTEL_GET_VENDOR_VERB 0xf81
1325 #define INTEL_SET_VENDOR_VERB 0x781
1326 #define INTEL_EN_DP12 0x02 /* enable DP 1.2 features */
1327 #define INTEL_EN_ALL_PIN_CVTS 0x01 /* enable 2nd & 3rd pins and convertors */
1329 static void hdac_hdmi_skl_enable_all_pins(struct hdac_device *hdac)
1331 unsigned int vendor_param;
1333 vendor_param = snd_hdac_codec_read(hdac, INTEL_VENDOR_NID, 0,
1334 INTEL_GET_VENDOR_VERB, 0);
1335 if (vendor_param == -1 || vendor_param & INTEL_EN_ALL_PIN_CVTS)
1338 vendor_param |= INTEL_EN_ALL_PIN_CVTS;
1339 vendor_param = snd_hdac_codec_read(hdac, INTEL_VENDOR_NID, 0,
1340 INTEL_SET_VENDOR_VERB, vendor_param);
1341 if (vendor_param == -1)
1345 static void hdac_hdmi_skl_enable_dp12(struct hdac_device *hdac)
1347 unsigned int vendor_param;
1349 vendor_param = snd_hdac_codec_read(hdac, INTEL_VENDOR_NID, 0,
1350 INTEL_GET_VENDOR_VERB, 0);
1351 if (vendor_param == -1 || vendor_param & INTEL_EN_DP12)
1354 /* enable DP1.2 mode */
1355 vendor_param |= INTEL_EN_DP12;
1356 vendor_param = snd_hdac_codec_read(hdac, INTEL_VENDOR_NID, 0,
1357 INTEL_SET_VENDOR_VERB, vendor_param);
1358 if (vendor_param == -1)
1363 static struct snd_soc_dai_ops hdmi_dai_ops = {
1364 .startup = hdac_hdmi_pcm_open,
1365 .shutdown = hdac_hdmi_pcm_close,
1366 .hw_params = hdac_hdmi_set_hw_params,
1367 .set_tdm_slot = hdac_hdmi_set_tdm_slot,
1371 * Each converter can support a stream independently. So a dai is created
1372 * based on the number of converter queried.
1374 static int hdac_hdmi_create_dais(struct hdac_device *hdac,
1375 struct snd_soc_dai_driver **dais,
1376 struct hdac_hdmi_priv *hdmi, int num_dais)
1378 struct snd_soc_dai_driver *hdmi_dais;
1379 struct hdac_hdmi_cvt *cvt;
1380 char name[NAME_SIZE], dai_name[NAME_SIZE];
1383 unsigned int rate_max = 384000, rate_min = 8000;
1387 hdmi_dais = devm_kzalloc(&hdac->dev,
1388 (sizeof(*hdmi_dais) * num_dais),
1393 list_for_each_entry(cvt, &hdmi->cvt_list, head) {
1394 ret = snd_hdac_query_supported_pcm(hdac, cvt->nid,
1395 &rates, &formats, &bps);
1399 sprintf(dai_name, "intel-hdmi-hifi%d", i+1);
1400 hdmi_dais[i].name = devm_kstrdup(&hdac->dev,
1401 dai_name, GFP_KERNEL);
1403 if (!hdmi_dais[i].name)
1406 snprintf(name, sizeof(name), "hifi%d", i+1);
1407 hdmi_dais[i].playback.stream_name =
1408 devm_kstrdup(&hdac->dev, name, GFP_KERNEL);
1409 if (!hdmi_dais[i].playback.stream_name)
1413 * Set caps based on capability queried from the converter.
1414 * It will be constrained runtime based on ELD queried.
1416 hdmi_dais[i].playback.formats = formats;
1417 hdmi_dais[i].playback.rates = rates;
1418 hdmi_dais[i].playback.rate_max = rate_max;
1419 hdmi_dais[i].playback.rate_min = rate_min;
1420 hdmi_dais[i].playback.channels_min = 2;
1421 hdmi_dais[i].playback.channels_max = 2;
1422 hdmi_dais[i].playback.sig_bits = bps;
1423 hdmi_dais[i].ops = &hdmi_dai_ops;
1433 * Parse all nodes and store the cvt/pin nids in array
1434 * Add one time initialization for pin and cvt widgets
1436 static int hdac_hdmi_parse_and_map_nid(struct hdac_ext_device *edev,
1437 struct snd_soc_dai_driver **dais, int *num_dais)
1441 struct hdac_device *hdac = &edev->hdac;
1442 struct hdac_hdmi_priv *hdmi = edev->private_data;
1445 hdac_hdmi_skl_enable_all_pins(hdac);
1446 hdac_hdmi_skl_enable_dp12(hdac);
1448 num_nodes = snd_hdac_get_sub_nodes(hdac, hdac->afg, &nid);
1449 if (!nid || num_nodes <= 0) {
1450 dev_warn(&hdac->dev, "HDMI: failed to get afg sub nodes\n");
1454 hdac->num_nodes = num_nodes;
1455 hdac->start_nid = nid;
1457 for (i = 0; i < hdac->num_nodes; i++, nid++) {
1461 caps = get_wcaps(hdac, nid);
1462 type = get_wcaps_type(caps);
1464 if (!(caps & AC_WCAP_DIGITAL))
1469 case AC_WID_AUD_OUT:
1470 ret = hdac_hdmi_add_cvt(edev, nid);
1476 ret = hdac_hdmi_add_pin(edev, nid);
1483 hdac->end_nid = nid;
1485 if (!hdmi->num_pin || !hdmi->num_cvt)
1488 ret = hdac_hdmi_create_dais(hdac, dais, hdmi, hdmi->num_cvt);
1490 dev_err(&hdac->dev, "Failed to create dais with err: %d\n",
1495 *num_dais = hdmi->num_cvt;
1497 return hdac_hdmi_init_dai_map(edev);
1500 static void hdac_hdmi_eld_notify_cb(void *aptr, int port, int pipe)
1502 struct hdac_ext_device *edev = aptr;
1503 struct hdac_hdmi_priv *hdmi = edev->private_data;
1504 struct hdac_hdmi_pin *pin = NULL;
1505 struct hdac_hdmi_port *hport = NULL;
1506 struct snd_soc_codec *codec = edev->scodec;
1509 /* Don't know how this mapping is derived */
1510 hda_nid_t pin_nid = port + 0x04;
1512 dev_dbg(&edev->hdac.dev, "%s: for pin:%d port=%d\n", __func__,
1516 * skip notification during system suspend (but not in runtime PM);
1517 * the state will be updated at resume. Also since the ELD and
1518 * connection states are updated in anyway at the end of the resume,
1519 * we can skip it when received during PM process.
1521 if (snd_power_get_state(codec->component.card->snd_card) !=
1525 if (atomic_read(&edev->hdac.in_pm))
1528 list_for_each_entry(pin, &hdmi->pin_list, head) {
1529 if (pin->nid != pin_nid)
1532 /* In case of non MST pin, pipe is -1 */
1534 pin->mst_capable = false;
1535 /* if not MST, default is port[0] */
1536 hport = &pin->ports[0];
1538 for (i = 0; i < pin->num_ports; i++) {
1539 pin->mst_capable = true;
1540 if (pin->ports[i].id == pipe) {
1541 hport = &pin->ports[i];
1548 hdac_hdmi_present_sense(pin, hport);
1553 static struct i915_audio_component_audio_ops aops = {
1554 .pin_eld_notify = hdac_hdmi_eld_notify_cb,
1557 static struct snd_pcm *hdac_hdmi_get_pcm_from_id(struct snd_soc_card *card,
1560 struct snd_soc_pcm_runtime *rtd;
1562 list_for_each_entry(rtd, &card->rtd_list, list) {
1563 if (rtd->pcm && (rtd->pcm->device == device))
1570 /* create jack pin kcontrols */
1571 static int create_fill_jack_kcontrols(struct snd_soc_card *card,
1572 struct hdac_ext_device *edev)
1574 struct hdac_hdmi_pin *pin;
1575 struct snd_kcontrol_new *kc;
1576 char kc_name[NAME_SIZE], xname[NAME_SIZE];
1579 struct snd_soc_codec *codec = edev->scodec;
1580 struct hdac_hdmi_priv *hdmi = edev->private_data;
1582 kc = devm_kcalloc(codec->dev, hdmi->num_ports,
1583 sizeof(*kc), GFP_KERNEL);
1588 list_for_each_entry(pin, &hdmi->pin_list, head) {
1589 for (j = 0; j < pin->num_ports; j++) {
1590 snprintf(xname, sizeof(xname), "hif%d-%d Jack",
1591 pin->nid, pin->ports[j].id);
1592 name = devm_kstrdup(codec->dev, xname, GFP_KERNEL);
1595 snprintf(kc_name, sizeof(kc_name), "%s Switch", xname);
1596 kc[i].name = devm_kstrdup(codec->dev, kc_name,
1601 kc[i].private_value = (unsigned long)name;
1602 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1604 kc[i].info = snd_soc_dapm_info_pin_switch;
1605 kc[i].put = snd_soc_dapm_put_pin_switch;
1606 kc[i].get = snd_soc_dapm_get_pin_switch;
1611 return snd_soc_add_card_controls(card, kc, i);
1614 int hdac_hdmi_jack_port_init(struct snd_soc_codec *codec,
1615 struct snd_soc_dapm_context *dapm)
1617 struct hdac_ext_device *edev = snd_soc_codec_get_drvdata(codec);
1618 struct hdac_hdmi_priv *hdmi = edev->private_data;
1619 struct hdac_hdmi_pin *pin;
1620 struct snd_soc_dapm_widget *widgets;
1621 struct snd_soc_dapm_route *route;
1622 char w_name[NAME_SIZE];
1625 widgets = devm_kcalloc(dapm->dev, hdmi->num_ports,
1626 sizeof(*widgets), GFP_KERNEL);
1631 route = devm_kcalloc(dapm->dev, hdmi->num_ports,
1632 sizeof(*route), GFP_KERNEL);
1636 /* create Jack DAPM widget */
1637 list_for_each_entry(pin, &hdmi->pin_list, head) {
1638 for (j = 0; j < pin->num_ports; j++) {
1639 snprintf(w_name, sizeof(w_name), "hif%d-%d Jack",
1640 pin->nid, pin->ports[j].id);
1642 ret = hdac_hdmi_fill_widget_info(dapm->dev, &widgets[i],
1643 snd_soc_dapm_spk, NULL,
1644 w_name, NULL, NULL, 0, NULL, 0);
1648 pin->ports[j].jack_pin = widgets[i].name;
1649 pin->ports[j].dapm = dapm;
1651 /* add to route from Jack widget to output */
1652 hdac_hdmi_fill_route(&route[i], pin->ports[j].jack_pin,
1653 NULL, pin->ports[j].output_pin, NULL);
1659 /* Add Route from Jack widget to the output widget */
1660 ret = snd_soc_dapm_new_controls(dapm, widgets, hdmi->num_ports);
1664 ret = snd_soc_dapm_add_routes(dapm, route, hdmi->num_ports);
1668 ret = snd_soc_dapm_new_widgets(dapm->card);
1672 /* Add Jack Pin switch Kcontrol */
1673 ret = create_fill_jack_kcontrols(dapm->card, edev);
1678 /* default set the Jack Pin switch to OFF */
1679 list_for_each_entry(pin, &hdmi->pin_list, head) {
1680 for (j = 0; j < pin->num_ports; j++)
1681 snd_soc_dapm_disable_pin(pin->ports[j].dapm,
1682 pin->ports[j].jack_pin);
1687 EXPORT_SYMBOL_GPL(hdac_hdmi_jack_port_init);
1689 int hdac_hdmi_jack_init(struct snd_soc_dai *dai, int device,
1690 struct snd_soc_jack *jack)
1692 struct snd_soc_codec *codec = dai->codec;
1693 struct hdac_ext_device *edev = snd_soc_codec_get_drvdata(codec);
1694 struct hdac_hdmi_priv *hdmi = edev->private_data;
1695 struct hdac_hdmi_pcm *pcm;
1696 struct snd_pcm *snd_pcm;
1700 * this is a new PCM device, create new pcm and
1701 * add to the pcm list
1703 pcm = kzalloc(sizeof(*pcm), GFP_KERNEL);
1706 pcm->pcm_id = device;
1707 pcm->cvt = hdmi->dai_map[dai->id].cvt;
1708 pcm->jack_event = 0;
1710 mutex_init(&pcm->lock);
1711 INIT_LIST_HEAD(&pcm->port_list);
1712 snd_pcm = hdac_hdmi_get_pcm_from_id(dai->component->card, device);
1714 err = snd_hdac_add_chmap_ctls(snd_pcm, device, &hdmi->chmap);
1716 dev_err(&edev->hdac.dev,
1717 "chmap control add failed with err: %d for pcm: %d\n",
1724 list_add_tail(&pcm->head, &hdmi->pcm_list);
1728 EXPORT_SYMBOL_GPL(hdac_hdmi_jack_init);
1730 static void hdac_hdmi_present_sense_all_pins(struct hdac_ext_device *edev,
1731 struct hdac_hdmi_priv *hdmi, bool detect_pin_caps)
1734 struct hdac_hdmi_pin *pin;
1736 list_for_each_entry(pin, &hdmi->pin_list, head) {
1737 if (detect_pin_caps) {
1739 if (hdac_hdmi_get_port_len(edev, pin->nid) == 0)
1740 pin->mst_capable = false;
1742 pin->mst_capable = true;
1745 for (i = 0; i < pin->num_ports; i++) {
1746 if (!pin->mst_capable && i > 0)
1749 hdac_hdmi_present_sense(pin, &pin->ports[i]);
1754 static int hdmi_codec_probe(struct snd_soc_codec *codec)
1756 struct hdac_ext_device *edev = snd_soc_codec_get_drvdata(codec);
1757 struct hdac_hdmi_priv *hdmi = edev->private_data;
1758 struct snd_soc_dapm_context *dapm =
1759 snd_soc_component_get_dapm(&codec->component);
1760 struct hdac_ext_link *hlink = NULL;
1763 edev->scodec = codec;
1766 * hold the ref while we probe, also no need to drop the ref on
1767 * exit, we call pm_runtime_suspend() so that will do for us
1769 hlink = snd_hdac_ext_bus_get_link(edev->ebus, dev_name(&edev->hdac.dev));
1771 dev_err(&edev->hdac.dev, "hdac link not found\n");
1775 snd_hdac_ext_bus_link_get(edev->ebus, hlink);
1777 ret = create_fill_widget_route_map(dapm);
1781 aops.audio_ptr = edev;
1782 ret = snd_hdac_i915_register_notifier(&aops);
1784 dev_err(&edev->hdac.dev, "notifier register failed: err: %d\n",
1789 hdac_hdmi_present_sense_all_pins(edev, hdmi, true);
1790 /* Imp: Store the card pointer in hda_codec */
1791 edev->card = dapm->card->snd_card;
1794 * hdac_device core already sets the state to active and calls
1795 * get_noresume. So enable runtime and set the device to suspend.
1797 pm_runtime_enable(&edev->hdac.dev);
1798 pm_runtime_put(&edev->hdac.dev);
1799 pm_runtime_suspend(&edev->hdac.dev);
1804 static int hdmi_codec_remove(struct snd_soc_codec *codec)
1806 struct hdac_ext_device *edev = snd_soc_codec_get_drvdata(codec);
1808 pm_runtime_disable(&edev->hdac.dev);
1813 static int hdmi_codec_prepare(struct device *dev)
1815 struct hdac_ext_device *edev = to_hda_ext_device(dev);
1816 struct hdac_device *hdac = &edev->hdac;
1818 pm_runtime_get_sync(&edev->hdac.dev);
1822 * codec_read is preferred over codec_write to set the power state.
1823 * This way verb is send to set the power state and response
1824 * is received. So setting power state is ensured without using loop
1825 * to read the state.
1827 snd_hdac_codec_read(hdac, hdac->afg, 0, AC_VERB_SET_POWER_STATE,
1833 static void hdmi_codec_complete(struct device *dev)
1835 struct hdac_ext_device *edev = to_hda_ext_device(dev);
1836 struct hdac_hdmi_priv *hdmi = edev->private_data;
1837 struct hdac_device *hdac = &edev->hdac;
1840 snd_hdac_codec_read(hdac, hdac->afg, 0, AC_VERB_SET_POWER_STATE,
1843 hdac_hdmi_skl_enable_all_pins(&edev->hdac);
1844 hdac_hdmi_skl_enable_dp12(&edev->hdac);
1847 * As the ELD notify callback request is not entertained while the
1848 * device is in suspend state. Need to manually check detection of
1849 * all pins here. pin capablity change is not support, so use the
1850 * already set pin caps.
1852 hdac_hdmi_present_sense_all_pins(edev, hdmi, false);
1854 pm_runtime_put_sync(&edev->hdac.dev);
1857 #define hdmi_codec_prepare NULL
1858 #define hdmi_codec_complete NULL
1861 static struct snd_soc_codec_driver hdmi_hda_codec = {
1862 .probe = hdmi_codec_probe,
1863 .remove = hdmi_codec_remove,
1864 .idle_bias_off = true,
1867 static void hdac_hdmi_get_chmap(struct hdac_device *hdac, int pcm_idx,
1868 unsigned char *chmap)
1870 struct hdac_ext_device *edev = to_ehdac_device(hdac);
1871 struct hdac_hdmi_priv *hdmi = edev->private_data;
1872 struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
1874 memcpy(chmap, pcm->chmap, ARRAY_SIZE(pcm->chmap));
1877 static void hdac_hdmi_set_chmap(struct hdac_device *hdac, int pcm_idx,
1878 unsigned char *chmap, int prepared)
1880 struct hdac_ext_device *edev = to_ehdac_device(hdac);
1881 struct hdac_hdmi_priv *hdmi = edev->private_data;
1882 struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
1883 struct hdac_hdmi_port *port;
1885 if (list_empty(&pcm->port_list))
1888 mutex_lock(&pcm->lock);
1889 pcm->chmap_set = true;
1890 memcpy(pcm->chmap, chmap, ARRAY_SIZE(pcm->chmap));
1891 list_for_each_entry(port, &pcm->port_list, head)
1893 hdac_hdmi_setup_audio_infoframe(edev, pcm, port);
1894 mutex_unlock(&pcm->lock);
1897 static bool is_hdac_hdmi_pcm_attached(struct hdac_device *hdac, int pcm_idx)
1899 struct hdac_ext_device *edev = to_ehdac_device(hdac);
1900 struct hdac_hdmi_priv *hdmi = edev->private_data;
1901 struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
1903 if (list_empty(&pcm->port_list))
1909 static int hdac_hdmi_get_spk_alloc(struct hdac_device *hdac, int pcm_idx)
1911 struct hdac_ext_device *edev = to_ehdac_device(hdac);
1912 struct hdac_hdmi_priv *hdmi = edev->private_data;
1913 struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
1914 struct hdac_hdmi_port *port;
1916 if (list_empty(&pcm->port_list))
1919 port = list_first_entry(&pcm->port_list, struct hdac_hdmi_port, head);
1924 if (!port || !port->eld.eld_valid)
1927 return port->eld.info.spk_alloc;
1930 static int hdac_hdmi_dev_probe(struct hdac_ext_device *edev)
1932 struct hdac_device *codec = &edev->hdac;
1933 struct hdac_hdmi_priv *hdmi_priv;
1934 struct snd_soc_dai_driver *hdmi_dais = NULL;
1935 struct hdac_ext_link *hlink = NULL;
1939 /* hold the ref while we probe */
1940 hlink = snd_hdac_ext_bus_get_link(edev->ebus, dev_name(&edev->hdac.dev));
1942 dev_err(&edev->hdac.dev, "hdac link not found\n");
1946 snd_hdac_ext_bus_link_get(edev->ebus, hlink);
1948 hdmi_priv = devm_kzalloc(&codec->dev, sizeof(*hdmi_priv), GFP_KERNEL);
1949 if (hdmi_priv == NULL)
1952 edev->private_data = hdmi_priv;
1953 snd_hdac_register_chmap_ops(codec, &hdmi_priv->chmap);
1954 hdmi_priv->chmap.ops.get_chmap = hdac_hdmi_get_chmap;
1955 hdmi_priv->chmap.ops.set_chmap = hdac_hdmi_set_chmap;
1956 hdmi_priv->chmap.ops.is_pcm_attached = is_hdac_hdmi_pcm_attached;
1957 hdmi_priv->chmap.ops.get_spk_alloc = hdac_hdmi_get_spk_alloc;
1959 dev_set_drvdata(&codec->dev, edev);
1961 INIT_LIST_HEAD(&hdmi_priv->pin_list);
1962 INIT_LIST_HEAD(&hdmi_priv->cvt_list);
1963 INIT_LIST_HEAD(&hdmi_priv->pcm_list);
1964 mutex_init(&hdmi_priv->pin_mutex);
1967 * Turned off in the runtime_suspend during the first explicit
1968 * pm_runtime_suspend call.
1970 ret = snd_hdac_display_power(edev->hdac.bus, true);
1972 dev_err(&edev->hdac.dev,
1973 "Cannot turn on display power on i915 err: %d\n",
1978 ret = hdac_hdmi_parse_and_map_nid(edev, &hdmi_dais, &num_dais);
1980 dev_err(&codec->dev,
1981 "Failed in parse and map nid with err: %d\n", ret);
1985 /* ASoC specific initialization */
1986 ret = snd_soc_register_codec(&codec->dev, &hdmi_hda_codec,
1987 hdmi_dais, num_dais);
1989 snd_hdac_ext_bus_link_put(edev->ebus, hlink);
1994 static int hdac_hdmi_dev_remove(struct hdac_ext_device *edev)
1996 struct hdac_hdmi_priv *hdmi = edev->private_data;
1997 struct hdac_hdmi_pin *pin, *pin_next;
1998 struct hdac_hdmi_cvt *cvt, *cvt_next;
1999 struct hdac_hdmi_pcm *pcm, *pcm_next;
2000 struct hdac_hdmi_port *port, *port_next;
2003 snd_soc_unregister_codec(&edev->hdac.dev);
2005 list_for_each_entry_safe(pcm, pcm_next, &hdmi->pcm_list, head) {
2007 if (list_empty(&pcm->port_list))
2010 list_for_each_entry_safe(port, port_next,
2011 &pcm->port_list, head)
2012 list_del(&port->head);
2014 list_del(&pcm->head);
2018 list_for_each_entry_safe(cvt, cvt_next, &hdmi->cvt_list, head) {
2019 list_del(&cvt->head);
2024 list_for_each_entry_safe(pin, pin_next, &hdmi->pin_list, head) {
2025 for (i = 0; i < pin->num_ports; i++)
2026 pin->ports[i].pin = NULL;
2028 list_del(&pin->head);
2036 static int hdac_hdmi_runtime_suspend(struct device *dev)
2038 struct hdac_ext_device *edev = to_hda_ext_device(dev);
2039 struct hdac_device *hdac = &edev->hdac;
2040 struct hdac_bus *bus = hdac->bus;
2041 struct hdac_ext_bus *ebus = hbus_to_ebus(bus);
2042 struct hdac_ext_link *hlink = NULL;
2045 dev_dbg(dev, "Enter: %s\n", __func__);
2047 /* controller may not have been initialized for the first time */
2053 * codec_read is preferred over codec_write to set the power state.
2054 * This way verb is send to set the power state and response
2055 * is received. So setting power state is ensured without using loop
2056 * to read the state.
2058 snd_hdac_codec_read(hdac, hdac->afg, 0, AC_VERB_SET_POWER_STATE,
2060 err = snd_hdac_display_power(bus, false);
2062 dev_err(bus->dev, "Cannot turn on display power on i915\n");
2066 hlink = snd_hdac_ext_bus_get_link(ebus, dev_name(dev));
2068 dev_err(dev, "hdac link not found\n");
2072 snd_hdac_ext_bus_link_put(ebus, hlink);
2077 static int hdac_hdmi_runtime_resume(struct device *dev)
2079 struct hdac_ext_device *edev = to_hda_ext_device(dev);
2080 struct hdac_device *hdac = &edev->hdac;
2081 struct hdac_bus *bus = hdac->bus;
2082 struct hdac_ext_bus *ebus = hbus_to_ebus(bus);
2083 struct hdac_ext_link *hlink = NULL;
2086 dev_dbg(dev, "Enter: %s\n", __func__);
2088 /* controller may not have been initialized for the first time */
2092 hlink = snd_hdac_ext_bus_get_link(ebus, dev_name(dev));
2094 dev_err(dev, "hdac link not found\n");
2098 snd_hdac_ext_bus_link_get(ebus, hlink);
2100 err = snd_hdac_display_power(bus, true);
2102 dev_err(bus->dev, "Cannot turn on display power on i915\n");
2106 hdac_hdmi_skl_enable_all_pins(&edev->hdac);
2107 hdac_hdmi_skl_enable_dp12(&edev->hdac);
2110 snd_hdac_codec_read(hdac, hdac->afg, 0, AC_VERB_SET_POWER_STATE,
2116 #define hdac_hdmi_runtime_suspend NULL
2117 #define hdac_hdmi_runtime_resume NULL
2120 static const struct dev_pm_ops hdac_hdmi_pm = {
2121 SET_RUNTIME_PM_OPS(hdac_hdmi_runtime_suspend, hdac_hdmi_runtime_resume, NULL)
2122 .prepare = hdmi_codec_prepare,
2123 .complete = hdmi_codec_complete,
2126 static const struct hda_device_id hdmi_list[] = {
2127 HDA_CODEC_EXT_ENTRY(0x80862809, 0x100000, "Skylake HDMI", 0),
2128 HDA_CODEC_EXT_ENTRY(0x8086280a, 0x100000, "Broxton HDMI", 0),
2129 HDA_CODEC_EXT_ENTRY(0x8086280b, 0x100000, "Kabylake HDMI", 0),
2130 HDA_CODEC_EXT_ENTRY(0x8086280d, 0x100000, "Geminilake HDMI", 0),
2134 MODULE_DEVICE_TABLE(hdaudio, hdmi_list);
2136 static struct hdac_ext_driver hdmi_driver = {
2139 .name = "HDMI HDA Codec",
2140 .pm = &hdac_hdmi_pm,
2142 .id_table = hdmi_list,
2144 .probe = hdac_hdmi_dev_probe,
2145 .remove = hdac_hdmi_dev_remove,
2148 static int __init hdmi_init(void)
2150 return snd_hda_ext_driver_register(&hdmi_driver);
2153 static void __exit hdmi_exit(void)
2155 snd_hda_ext_driver_unregister(&hdmi_driver);
2158 module_init(hdmi_init);
2159 module_exit(hdmi_exit);
2161 MODULE_LICENSE("GPL v2");
2162 MODULE_DESCRIPTION("HDMI HD codec");
2163 MODULE_AUTHOR("Samreen Nilofer<samreen.nilofer@intel.com>");
2164 MODULE_AUTHOR("Subhransu S. Prusty<subhransu.s.prusty@intel.com>");