1 // SPDX-License-Identifier: GPL-2.0-only
3 * hdac_hdmi.c - ASoc HDA-HDMI codec driver for Intel platforms
5 * Copyright (C) 2014-2015 Intel Corp
6 * Author: Samreen Nilofer <samreen.nilofer@intel.com>
7 * Subhransu S. Prusty <subhransu.s.prusty@intel.com>
8 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
10 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
12 #include <linux/init.h>
13 #include <linux/delay.h>
14 #include <linux/module.h>
15 #include <linux/pm_runtime.h>
16 #include <linux/hdmi.h>
17 #include <drm/drm_edid.h>
18 #include <sound/pcm_params.h>
19 #include <sound/jack.h>
20 #include <sound/soc.h>
21 #include <sound/hdaudio_ext.h>
22 #include <sound/hda_i915.h>
23 #include <sound/pcm_drm_eld.h>
24 #include <sound/hda_chmap.h>
25 #include "../../hda/local.h"
26 #include "hdac_hdmi.h"
30 #define AMP_OUT_MUTE 0xb080
31 #define AMP_OUT_UNMUTE 0xb000
32 #define PIN_OUT (AC_PINCTL_OUT_EN)
34 #define HDA_MAX_CONNECTIONS 32
36 #define HDA_MAX_CVTS 3
37 #define HDA_MAX_PORTS 3
39 #define ELD_MAX_SIZE 256
40 #define ELD_FIXED_BYTES 20
42 #define ELD_VER_CEA_861D 2
43 #define ELD_VER_PARTIAL 31
44 #define ELD_MAX_MNL 16
46 struct hdac_hdmi_cvt_params {
47 unsigned int channels_min;
48 unsigned int channels_max;
54 struct hdac_hdmi_cvt {
55 struct list_head head;
58 struct hdac_hdmi_cvt_params params;
61 /* Currently only spk_alloc, more to be added */
62 struct hdac_hdmi_parsed_eld {
66 struct hdac_hdmi_eld {
70 char eld_buffer[ELD_MAX_SIZE];
71 struct hdac_hdmi_parsed_eld info;
74 struct hdac_hdmi_pin {
75 struct list_head head;
78 struct hdac_hdmi_port *ports;
80 struct hdac_device *hdev;
83 struct hdac_hdmi_port {
84 struct list_head head;
86 struct hdac_hdmi_pin *pin;
88 hda_nid_t mux_nids[HDA_MAX_CONNECTIONS];
89 struct hdac_hdmi_eld eld;
91 struct snd_soc_dapm_context *dapm;
92 const char *output_pin;
95 struct hdac_hdmi_pcm {
96 struct list_head head;
98 struct list_head port_list;
99 struct hdac_hdmi_cvt *cvt;
100 struct snd_soc_jack *jack;
105 unsigned char chmap[8]; /* ALSA API channel-map */
110 struct hdac_hdmi_dai_port_map {
112 struct hdac_hdmi_port *port;
113 struct hdac_hdmi_cvt *cvt;
117 * pin to port mapping table where the value indicate the pin number and
118 * the index indicate the port number with 1 base.
120 static const int icl_pin2port_map[] = {0x4, 0x6, 0x8, 0xa, 0xb};
122 struct hdac_hdmi_drv_data {
123 unsigned int vendor_nid;
124 const int *port_map; /* pin to port mapping table */
128 struct hdac_hdmi_priv {
129 struct hdac_device *hdev;
130 struct snd_soc_component *component;
131 struct snd_card *card;
132 struct hdac_hdmi_dai_port_map dai_map[HDA_MAX_CVTS];
133 struct list_head pin_list;
134 struct list_head cvt_list;
135 struct list_head pcm_list;
139 struct mutex pin_mutex;
140 struct hdac_chmap chmap;
141 struct hdac_hdmi_drv_data *drv_data;
142 struct snd_soc_dai_driver *dai_drv;
145 #define hdev_to_hdmi_priv(_hdev) dev_get_drvdata(&(_hdev)->dev)
147 static struct hdac_hdmi_pcm *
148 hdac_hdmi_get_pcm_from_cvt(struct hdac_hdmi_priv *hdmi,
149 struct hdac_hdmi_cvt *cvt)
151 struct hdac_hdmi_pcm *pcm = NULL;
153 list_for_each_entry(pcm, &hdmi->pcm_list, head) {
161 static void hdac_hdmi_jack_report(struct hdac_hdmi_pcm *pcm,
162 struct hdac_hdmi_port *port, bool is_connect)
164 struct hdac_device *hdev = port->pin->hdev;
167 snd_soc_dapm_enable_pin(port->dapm, port->jack_pin);
169 snd_soc_dapm_disable_pin(port->dapm, port->jack_pin);
173 * Report Jack connect event when a device is connected
174 * for the first time where same PCM is attached to multiple
177 if (pcm->jack_event == 0) {
179 "jack report for pcm=%d\n",
181 snd_soc_jack_report(pcm->jack, SND_JACK_AVOUT,
187 * Report Jack disconnect event when a device is disconnected
188 * is the only last connected device when same PCM is attached
191 if (pcm->jack_event == 1)
192 snd_soc_jack_report(pcm->jack, 0, SND_JACK_AVOUT);
193 if (pcm->jack_event > 0)
197 snd_soc_dapm_sync(port->dapm);
200 /* MST supported verbs */
202 * Get the no devices that can be connected to a port on the Pin widget.
204 static int hdac_hdmi_get_port_len(struct hdac_device *hdev, hda_nid_t nid)
207 unsigned int type, param;
209 caps = get_wcaps(hdev, nid);
210 type = get_wcaps_type(caps);
212 if (!(caps & AC_WCAP_DIGITAL) || (type != AC_WID_PIN))
215 param = snd_hdac_read_parm_uncached(hdev, nid, AC_PAR_DEVLIST_LEN);
219 return param & AC_DEV_LIST_LEN_MASK;
223 * Get the port entry select on the pin. Return the port entry
224 * id selected on the pin. Return 0 means the first port entry
225 * is selected or MST is not supported.
227 static int hdac_hdmi_port_select_get(struct hdac_device *hdev,
228 struct hdac_hdmi_port *port)
230 return snd_hdac_codec_read(hdev, port->pin->nid,
231 0, AC_VERB_GET_DEVICE_SEL, 0);
235 * Sets the selected port entry for the configuring Pin widget verb.
236 * returns error if port set is not equal to port get otherwise success
238 static int hdac_hdmi_port_select_set(struct hdac_device *hdev,
239 struct hdac_hdmi_port *port)
243 if (!port->pin->mst_capable)
246 /* AC_PAR_DEVLIST_LEN is 0 based. */
247 num_ports = hdac_hdmi_get_port_len(hdev, port->pin->nid);
251 * Device List Length is a 0 based integer value indicating the
252 * number of sink device that a MST Pin Widget can support.
254 if (num_ports + 1 < port->id)
257 snd_hdac_codec_write(hdev, port->pin->nid, 0,
258 AC_VERB_SET_DEVICE_SEL, port->id);
260 if (port->id != hdac_hdmi_port_select_get(hdev, port))
263 dev_dbg(&hdev->dev, "Selected the port=%d\n", port->id);
268 static struct hdac_hdmi_pcm *get_hdmi_pcm_from_id(struct hdac_hdmi_priv *hdmi,
271 struct hdac_hdmi_pcm *pcm;
273 list_for_each_entry(pcm, &hdmi->pcm_list, head) {
274 if (pcm->pcm_id == pcm_idx)
281 static unsigned int sad_format(const u8 *sad)
283 return ((sad[0] >> 0x3) & 0x1f);
286 static unsigned int sad_sample_bits_lpcm(const u8 *sad)
291 static int hdac_hdmi_eld_limit_formats(struct snd_pcm_runtime *runtime,
294 u64 formats = SNDRV_PCM_FMTBIT_S16;
296 const u8 *sad, *eld_buf = eld;
298 sad = drm_eld_sad(eld_buf);
300 goto format_constraint;
302 for (i = drm_eld_sad_count(eld_buf); i > 0; i--, sad += 3) {
303 if (sad_format(sad) == 1) { /* AUDIO_CODING_TYPE_LPCM */
306 * the controller support 20 and 24 bits in 32 bit
307 * container so we set S32
309 if (sad_sample_bits_lpcm(sad) & 0x6)
310 formats |= SNDRV_PCM_FMTBIT_S32;
315 return snd_pcm_hw_constraint_mask64(runtime, SNDRV_PCM_HW_PARAM_FORMAT,
321 hdac_hdmi_set_dip_index(struct hdac_device *hdev, hda_nid_t pin_nid,
322 int packet_index, int byte_index)
326 val = (packet_index << 5) | (byte_index & 0x1f);
327 snd_hdac_codec_write(hdev, pin_nid, 0, 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_device *hdev,
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 = hdev_to_hdmi_priv(hdev);
350 struct hdac_hdmi_cvt *cvt = pcm->cvt;
358 ca = snd_hdac_channel_allocation(hdev, 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(hdev, 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(&hdev->dev, "Invalid connection type: %d\n", conn_type);
399 /* stop infoframe transmission */
400 hdac_hdmi_set_dip_index(hdev, pin->nid, 0x0, 0x0);
401 snd_hdac_codec_write(hdev, pin->nid, 0,
402 AC_VERB_SET_HDMI_DIP_XMIT, AC_DIPXMIT_DISABLE);
405 /* Fill infoframe. Index auto-incremented */
406 hdac_hdmi_set_dip_index(hdev, pin->nid, 0x0, 0x0);
407 if (conn_type == DRM_ELD_CONN_TYPE_HDMI) {
408 for (i = 0; i < sizeof(buffer); i++)
409 snd_hdac_codec_write(hdev, pin->nid, 0,
410 AC_VERB_SET_HDMI_DIP_DATA, buffer[i]);
412 for (i = 0; i < sizeof(dp_ai); i++)
413 snd_hdac_codec_write(hdev, pin->nid, 0,
414 AC_VERB_SET_HDMI_DIP_DATA, dip[i]);
417 /* Start infoframe */
418 hdac_hdmi_set_dip_index(hdev, pin->nid, 0x0, 0x0);
419 snd_hdac_codec_write(hdev, pin->nid, 0,
420 AC_VERB_SET_HDMI_DIP_XMIT, AC_DIPXMIT_BEST);
425 static int hdac_hdmi_set_tdm_slot(struct snd_soc_dai *dai,
426 unsigned int tx_mask, unsigned int rx_mask,
427 int slots, int slot_width)
429 struct hdac_hdmi_priv *hdmi = snd_soc_dai_get_drvdata(dai);
430 struct hdac_device *hdev = hdmi->hdev;
431 struct hdac_hdmi_dai_port_map *dai_map;
432 struct hdac_hdmi_pcm *pcm;
434 dev_dbg(&hdev->dev, "%s: strm_tag: %d\n", __func__, tx_mask);
436 dai_map = &hdmi->dai_map[dai->id];
438 pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, dai_map->cvt);
441 pcm->stream_tag = (tx_mask << 4);
446 static int hdac_hdmi_set_hw_params(struct snd_pcm_substream *substream,
447 struct snd_pcm_hw_params *hparams, struct snd_soc_dai *dai)
449 struct hdac_hdmi_priv *hdmi = snd_soc_dai_get_drvdata(dai);
450 struct hdac_hdmi_dai_port_map *dai_map;
451 struct hdac_hdmi_pcm *pcm;
454 dai_map = &hdmi->dai_map[dai->id];
456 format = snd_hdac_calc_stream_format(params_rate(hparams),
457 params_channels(hparams), params_format(hparams),
458 dai->driver->playback.sig_bits, 0);
460 pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, dai_map->cvt);
464 pcm->format = format;
465 pcm->channels = params_channels(hparams);
470 static int hdac_hdmi_query_port_connlist(struct hdac_device *hdev,
471 struct hdac_hdmi_pin *pin,
472 struct hdac_hdmi_port *port)
474 if (!(get_wcaps(hdev, pin->nid) & AC_WCAP_CONN_LIST)) {
476 "HDMI: pin %d wcaps %#x does not support connection list\n",
477 pin->nid, get_wcaps(hdev, pin->nid));
481 if (hdac_hdmi_port_select_set(hdev, port) < 0)
484 port->num_mux_nids = snd_hdac_get_connections(hdev, pin->nid,
485 port->mux_nids, HDA_MAX_CONNECTIONS);
486 if (port->num_mux_nids == 0)
488 "No connections found for pin:port %d:%d\n",
491 dev_dbg(&hdev->dev, "num_mux_nids %d for pin:port %d:%d\n",
492 port->num_mux_nids, pin->nid, port->id);
494 return port->num_mux_nids;
498 * Query pcm list and return port to which stream is routed.
500 * Also query connection list of the pin, to validate the cvt to port map.
502 * Same stream rendering to multiple ports simultaneously can be done
503 * possibly, but not supported for now in driver. So return the first port
506 static struct hdac_hdmi_port *hdac_hdmi_get_port_from_cvt(
507 struct hdac_device *hdev,
508 struct hdac_hdmi_priv *hdmi,
509 struct hdac_hdmi_cvt *cvt)
511 struct hdac_hdmi_pcm *pcm;
512 struct hdac_hdmi_port *port = NULL;
515 list_for_each_entry(pcm, &hdmi->pcm_list, head) {
516 if (pcm->cvt == cvt) {
517 if (list_empty(&pcm->port_list))
520 list_for_each_entry(port, &pcm->port_list, head) {
521 mutex_lock(&pcm->lock);
522 ret = hdac_hdmi_query_port_connlist(hdev,
524 mutex_unlock(&pcm->lock);
528 for (i = 0; i < port->num_mux_nids; i++) {
529 if (port->mux_nids[i] == cvt->nid &&
530 port->eld.monitor_present &&
542 * Go through all converters and ensure connection is set to
543 * the correct pin as set via kcontrols.
545 static void hdac_hdmi_verify_connect_sel_all_pins(struct hdac_device *hdev)
547 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
548 struct hdac_hdmi_port *port;
549 struct hdac_hdmi_cvt *cvt;
552 list_for_each_entry(cvt, &hdmi->cvt_list, head) {
553 port = hdac_hdmi_get_port_from_cvt(hdev, hdmi, cvt);
554 if (port && port->pin) {
555 snd_hdac_codec_write(hdev, port->pin->nid, 0,
556 AC_VERB_SET_CONNECT_SEL, cvt_idx);
557 dev_dbg(&hdev->dev, "%s: %s set connect %d -> %d\n",
558 __func__, cvt->name, port->pin->nid, cvt_idx);
565 * This tries to get a valid pin and set the HW constraints based on the
566 * ELD. Even if a valid pin is not found return success so that device open
569 static int hdac_hdmi_pcm_open(struct snd_pcm_substream *substream,
570 struct snd_soc_dai *dai)
572 struct hdac_hdmi_priv *hdmi = snd_soc_dai_get_drvdata(dai);
573 struct hdac_device *hdev = hdmi->hdev;
574 struct hdac_hdmi_dai_port_map *dai_map;
575 struct hdac_hdmi_cvt *cvt;
576 struct hdac_hdmi_port *port;
579 dai_map = &hdmi->dai_map[dai->id];
582 port = hdac_hdmi_get_port_from_cvt(hdev, hdmi, cvt);
585 * To make PA and other userland happy.
586 * userland scans devices so returning error does not help.
590 if ((!port->eld.monitor_present) ||
591 (!port->eld.eld_valid)) {
594 "Failed: present?:%d ELD valid?:%d pin:port: %d:%d\n",
595 port->eld.monitor_present, port->eld.eld_valid,
596 port->pin->nid, port->id);
601 dai_map->port = port;
603 ret = hdac_hdmi_eld_limit_formats(substream->runtime,
604 port->eld.eld_buffer);
608 return snd_pcm_hw_constraint_eld(substream->runtime,
609 port->eld.eld_buffer);
612 static void hdac_hdmi_pcm_close(struct snd_pcm_substream *substream,
613 struct snd_soc_dai *dai)
615 struct hdac_hdmi_priv *hdmi = snd_soc_dai_get_drvdata(dai);
616 struct hdac_hdmi_dai_port_map *dai_map;
617 struct hdac_hdmi_pcm *pcm;
619 dai_map = &hdmi->dai_map[dai->id];
621 pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, dai_map->cvt);
624 mutex_lock(&pcm->lock);
625 pcm->chmap_set = false;
626 memset(pcm->chmap, 0, sizeof(pcm->chmap));
628 mutex_unlock(&pcm->lock);
632 dai_map->port = NULL;
636 hdac_hdmi_query_cvt_params(struct hdac_device *hdev, struct hdac_hdmi_cvt *cvt)
639 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
642 chans = get_wcaps(hdev, cvt->nid);
643 chans = get_wcaps_channels(chans);
645 cvt->params.channels_min = 2;
647 cvt->params.channels_max = chans;
648 if (chans > hdmi->chmap.channels_max)
649 hdmi->chmap.channels_max = chans;
651 err = snd_hdac_query_supported_pcm(hdev, cvt->nid,
653 &cvt->params.formats,
654 &cvt->params.maxbps);
657 "Failed to query pcm params for nid %d: %d\n",
663 static int hdac_hdmi_fill_widget_info(struct device *dev,
664 struct snd_soc_dapm_widget *w, enum snd_soc_dapm_type id,
665 void *priv, const char *wname, const char *stream,
666 struct snd_kcontrol_new *wc, int numkc,
667 int (*event)(struct snd_soc_dapm_widget *,
668 struct snd_kcontrol *, int), unsigned short event_flags)
671 w->name = devm_kstrdup(dev, wname, GFP_KERNEL);
676 w->reg = SND_SOC_NOPM;
678 w->kcontrol_news = wc;
679 w->num_kcontrols = numkc;
682 w->event_flags = event_flags;
687 static void hdac_hdmi_fill_route(struct snd_soc_dapm_route *route,
688 const char *sink, const char *control, const char *src,
689 int (*handler)(struct snd_soc_dapm_widget *src,
690 struct snd_soc_dapm_widget *sink))
694 route->control = control;
695 route->connected = handler;
698 static struct hdac_hdmi_pcm *hdac_hdmi_get_pcm(struct hdac_device *hdev,
699 struct hdac_hdmi_port *port)
701 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
702 struct hdac_hdmi_pcm *pcm = NULL;
703 struct hdac_hdmi_port *p;
705 list_for_each_entry(pcm, &hdmi->pcm_list, head) {
706 if (list_empty(&pcm->port_list))
709 list_for_each_entry(p, &pcm->port_list, head) {
710 if (p->id == port->id && port->pin == p->pin)
718 static void hdac_hdmi_set_power_state(struct hdac_device *hdev,
719 hda_nid_t nid, unsigned int pwr_state)
724 if (get_wcaps(hdev, nid) & AC_WCAP_POWER) {
725 if (!snd_hdac_check_power_state(hdev, nid, pwr_state)) {
726 for (count = 0; count < 10; count++) {
727 snd_hdac_codec_read(hdev, nid, 0,
728 AC_VERB_SET_POWER_STATE,
730 state = snd_hdac_sync_power_state(hdev,
732 if (!(state & AC_PWRST_ERROR))
739 static void hdac_hdmi_set_amp(struct hdac_device *hdev,
740 hda_nid_t nid, int val)
742 if (get_wcaps(hdev, nid) & AC_WCAP_OUT_AMP)
743 snd_hdac_codec_write(hdev, nid, 0,
744 AC_VERB_SET_AMP_GAIN_MUTE, val);
748 static int hdac_hdmi_pin_output_widget_event(struct snd_soc_dapm_widget *w,
749 struct snd_kcontrol *kc, int event)
751 struct hdac_hdmi_port *port = w->priv;
752 struct hdac_device *hdev = dev_to_hdac_dev(w->dapm->dev);
753 struct hdac_hdmi_pcm *pcm;
755 dev_dbg(&hdev->dev, "%s: widget: %s event: %x\n",
756 __func__, w->name, event);
758 pcm = hdac_hdmi_get_pcm(hdev, port);
762 /* set the device if pin is mst_capable */
763 if (hdac_hdmi_port_select_set(hdev, port) < 0)
767 case SND_SOC_DAPM_PRE_PMU:
768 hdac_hdmi_set_power_state(hdev, port->pin->nid, AC_PWRST_D0);
770 /* Enable out path for this pin widget */
771 snd_hdac_codec_write(hdev, port->pin->nid, 0,
772 AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT);
774 hdac_hdmi_set_amp(hdev, port->pin->nid, AMP_OUT_UNMUTE);
776 return hdac_hdmi_setup_audio_infoframe(hdev, pcm, port);
778 case SND_SOC_DAPM_POST_PMD:
779 hdac_hdmi_set_amp(hdev, port->pin->nid, AMP_OUT_MUTE);
781 /* Disable out path for this pin widget */
782 snd_hdac_codec_write(hdev, port->pin->nid, 0,
783 AC_VERB_SET_PIN_WIDGET_CONTROL, 0);
785 hdac_hdmi_set_power_state(hdev, port->pin->nid, AC_PWRST_D3);
793 static int hdac_hdmi_cvt_output_widget_event(struct snd_soc_dapm_widget *w,
794 struct snd_kcontrol *kc, int event)
796 struct hdac_hdmi_cvt *cvt = w->priv;
797 struct hdac_device *hdev = dev_to_hdac_dev(w->dapm->dev);
798 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
799 struct hdac_hdmi_pcm *pcm;
801 dev_dbg(&hdev->dev, "%s: widget: %s event: %x\n",
802 __func__, w->name, event);
804 pcm = hdac_hdmi_get_pcm_from_cvt(hdmi, cvt);
809 case SND_SOC_DAPM_PRE_PMU:
810 hdac_hdmi_set_power_state(hdev, cvt->nid, AC_PWRST_D0);
812 /* Enable transmission */
813 snd_hdac_codec_write(hdev, cvt->nid, 0,
814 AC_VERB_SET_DIGI_CONVERT_1, 1);
816 /* Category Code (CC) to zero */
817 snd_hdac_codec_write(hdev, cvt->nid, 0,
818 AC_VERB_SET_DIGI_CONVERT_2, 0);
820 snd_hdac_codec_write(hdev, cvt->nid, 0,
821 AC_VERB_SET_CHANNEL_STREAMID, pcm->stream_tag);
822 snd_hdac_codec_write(hdev, cvt->nid, 0,
823 AC_VERB_SET_STREAM_FORMAT, pcm->format);
826 * The connection indices are shared by all converters and
827 * may interfere with each other. Ensure correct
828 * routing for all converters at stream start.
830 hdac_hdmi_verify_connect_sel_all_pins(hdev);
834 case SND_SOC_DAPM_POST_PMD:
835 snd_hdac_codec_write(hdev, cvt->nid, 0,
836 AC_VERB_SET_CHANNEL_STREAMID, 0);
837 snd_hdac_codec_write(hdev, cvt->nid, 0,
838 AC_VERB_SET_STREAM_FORMAT, 0);
840 hdac_hdmi_set_power_state(hdev, cvt->nid, AC_PWRST_D3);
848 static int hdac_hdmi_pin_mux_widget_event(struct snd_soc_dapm_widget *w,
849 struct snd_kcontrol *kc, int event)
851 struct hdac_hdmi_port *port = w->priv;
852 struct hdac_device *hdev = dev_to_hdac_dev(w->dapm->dev);
855 dev_dbg(&hdev->dev, "%s: widget: %s event: %x\n",
856 __func__, w->name, event);
859 kc = w->kcontrols[0];
861 mux_idx = dapm_kcontrol_get_value(kc);
863 /* set the device if pin is mst_capable */
864 if (hdac_hdmi_port_select_set(hdev, port) < 0)
868 snd_hdac_codec_write(hdev, port->pin->nid, 0,
869 AC_VERB_SET_CONNECT_SEL, (mux_idx - 1));
876 * Based on user selection, map the PINs with the PCMs.
878 static int hdac_hdmi_set_pin_port_mux(struct snd_kcontrol *kcontrol,
879 struct snd_ctl_elem_value *ucontrol)
882 struct hdac_hdmi_port *p, *p_next;
883 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
884 struct snd_soc_dapm_widget *w = snd_soc_dapm_kcontrol_widget(kcontrol);
885 struct snd_soc_dapm_context *dapm = w->dapm;
886 struct hdac_hdmi_port *port = w->priv;
887 struct hdac_device *hdev = dev_to_hdac_dev(dapm->dev);
888 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
889 struct hdac_hdmi_pcm *pcm = NULL;
890 const char *cvt_name = e->texts[ucontrol->value.enumerated.item[0]];
892 ret = snd_soc_dapm_put_enum_double(kcontrol, ucontrol);
899 mutex_lock(&hdmi->pin_mutex);
900 list_for_each_entry(pcm, &hdmi->pcm_list, head) {
901 if (list_empty(&pcm->port_list))
904 list_for_each_entry_safe(p, p_next, &pcm->port_list, head) {
905 if (p == port && p->id == port->id &&
906 p->pin == port->pin) {
907 hdac_hdmi_jack_report(pcm, port, false);
914 * Jack status is not reported during device probe as the
915 * PCMs are not registered by then. So report it here.
917 list_for_each_entry(pcm, &hdmi->pcm_list, head) {
918 if (!strcmp(cvt_name, pcm->cvt->name)) {
919 list_add_tail(&port->head, &pcm->port_list);
920 if (port->eld.monitor_present && port->eld.eld_valid) {
921 hdac_hdmi_jack_report(pcm, port, true);
922 mutex_unlock(&hdmi->pin_mutex);
927 mutex_unlock(&hdmi->pin_mutex);
933 * Ideally the Mux inputs should be based on the num_muxs enumerated, but
934 * the display driver seem to be programming the connection list for the pin
937 * So programming all the possible inputs for the mux, the user has to take
938 * care of selecting the right one and leaving all other inputs selected to
941 static int hdac_hdmi_create_pin_port_muxs(struct hdac_device *hdev,
942 struct hdac_hdmi_port *port,
943 struct snd_soc_dapm_widget *widget,
944 const char *widget_name)
946 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
947 struct hdac_hdmi_pin *pin = port->pin;
948 struct snd_kcontrol_new *kc;
949 struct hdac_hdmi_cvt *cvt;
951 char kc_name[NAME_SIZE];
952 char mux_items[NAME_SIZE];
953 /* To hold inputs to the Pin mux */
954 char *items[HDA_MAX_CONNECTIONS];
956 int num_items = hdmi->num_cvt + 1;
958 kc = devm_kzalloc(&hdev->dev, sizeof(*kc), GFP_KERNEL);
962 se = devm_kzalloc(&hdev->dev, sizeof(*se), GFP_KERNEL);
966 snprintf(kc_name, NAME_SIZE, "Pin %d port %d Input",
968 kc->name = devm_kstrdup(&hdev->dev, kc_name, GFP_KERNEL);
972 kc->private_value = (long)se;
973 kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
975 kc->info = snd_soc_info_enum_double;
976 kc->put = hdac_hdmi_set_pin_port_mux;
977 kc->get = snd_soc_dapm_get_enum_double;
979 se->reg = SND_SOC_NOPM;
981 /* enum texts: ["NONE", "cvt #", "cvt #", ...] */
982 se->items = num_items;
983 se->mask = roundup_pow_of_two(se->items) - 1;
985 sprintf(mux_items, "NONE");
986 items[i] = devm_kstrdup(&hdev->dev, mux_items, GFP_KERNEL);
990 list_for_each_entry(cvt, &hdmi->cvt_list, head) {
992 sprintf(mux_items, "cvt %d", cvt->nid);
993 items[i] = devm_kstrdup(&hdev->dev, mux_items, GFP_KERNEL);
998 se->texts = devm_kmemdup(&hdev->dev, items,
999 (num_items * sizeof(char *)), GFP_KERNEL);
1003 return hdac_hdmi_fill_widget_info(&hdev->dev, widget,
1004 snd_soc_dapm_mux, port, widget_name, NULL, kc, 1,
1005 hdac_hdmi_pin_mux_widget_event,
1006 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_REG);
1009 /* Add cvt <- input <- mux route map */
1010 static void hdac_hdmi_add_pinmux_cvt_route(struct hdac_device *hdev,
1011 struct snd_soc_dapm_widget *widgets,
1012 struct snd_soc_dapm_route *route, int rindex)
1014 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1015 const struct snd_kcontrol_new *kc;
1016 struct soc_enum *se;
1017 int mux_index = hdmi->num_cvt + hdmi->num_ports;
1020 for (i = 0; i < hdmi->num_ports; i++) {
1021 kc = widgets[mux_index].kcontrol_news;
1022 se = (struct soc_enum *)kc->private_value;
1023 for (j = 0; j < hdmi->num_cvt; j++) {
1024 hdac_hdmi_fill_route(&route[rindex],
1025 widgets[mux_index].name,
1027 widgets[j].name, NULL);
1037 * Widgets are added in the below sequence
1038 * Converter widgets for num converters enumerated
1039 * Pin-port widgets for num ports for Pins enumerated
1040 * Pin-port mux widgets to represent connenction list of pin widget
1042 * For each port, one Mux and One output widget is added
1043 * Total widgets elements = num_cvt + (num_ports * 2);
1045 * Routes are added as below:
1046 * pin-port mux -> pin (based on num_ports)
1047 * cvt -> "Input sel control" -> pin-port_mux
1049 * Total route elements:
1050 * num_ports + (pin_muxes * num_cvt)
1052 static int create_fill_widget_route_map(struct snd_soc_dapm_context *dapm)
1054 struct snd_soc_dapm_widget *widgets;
1055 struct snd_soc_dapm_route *route;
1056 struct hdac_device *hdev = dev_to_hdac_dev(dapm->dev);
1057 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1058 struct snd_soc_dai_driver *dai_drv = hdmi->dai_drv;
1059 char widget_name[NAME_SIZE];
1060 struct hdac_hdmi_cvt *cvt;
1061 struct hdac_hdmi_pin *pin;
1062 int ret, i = 0, num_routes = 0, j;
1064 if (list_empty(&hdmi->cvt_list) || list_empty(&hdmi->pin_list))
1067 widgets = devm_kzalloc(dapm->dev, (sizeof(*widgets) *
1068 ((2 * hdmi->num_ports) + hdmi->num_cvt)),
1074 /* DAPM widgets to represent each converter widget */
1075 list_for_each_entry(cvt, &hdmi->cvt_list, head) {
1076 sprintf(widget_name, "Converter %d", cvt->nid);
1077 ret = hdac_hdmi_fill_widget_info(dapm->dev, &widgets[i],
1078 snd_soc_dapm_aif_in, cvt,
1079 widget_name, dai_drv[i].playback.stream_name, NULL, 0,
1080 hdac_hdmi_cvt_output_widget_event,
1081 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD);
1087 list_for_each_entry(pin, &hdmi->pin_list, head) {
1088 for (j = 0; j < pin->num_ports; j++) {
1089 sprintf(widget_name, "hif%d-%d Output",
1090 pin->nid, pin->ports[j].id);
1091 ret = hdac_hdmi_fill_widget_info(dapm->dev, &widgets[i],
1092 snd_soc_dapm_output, &pin->ports[j],
1093 widget_name, NULL, NULL, 0,
1094 hdac_hdmi_pin_output_widget_event,
1095 SND_SOC_DAPM_PRE_PMU |
1096 SND_SOC_DAPM_POST_PMD);
1099 pin->ports[j].output_pin = widgets[i].name;
1104 /* DAPM widgets to represent the connection list to pin widget */
1105 list_for_each_entry(pin, &hdmi->pin_list, head) {
1106 for (j = 0; j < pin->num_ports; j++) {
1107 sprintf(widget_name, "Pin%d-Port%d Mux",
1108 pin->nid, pin->ports[j].id);
1109 ret = hdac_hdmi_create_pin_port_muxs(hdev,
1110 &pin->ports[j], &widgets[i],
1116 /* For cvt to pin_mux mapping */
1117 num_routes += hdmi->num_cvt;
1119 /* For pin_mux to pin mapping */
1124 route = devm_kzalloc(dapm->dev, (sizeof(*route) * num_routes),
1130 /* Add pin <- NULL <- mux route map */
1131 list_for_each_entry(pin, &hdmi->pin_list, head) {
1132 for (j = 0; j < pin->num_ports; j++) {
1133 int sink_index = i + hdmi->num_cvt;
1134 int src_index = sink_index + pin->num_ports *
1137 hdac_hdmi_fill_route(&route[i],
1138 widgets[sink_index].name, NULL,
1139 widgets[src_index].name, NULL);
1144 hdac_hdmi_add_pinmux_cvt_route(hdev, widgets, route, i);
1146 snd_soc_dapm_new_controls(dapm, widgets,
1147 ((2 * hdmi->num_ports) + hdmi->num_cvt));
1149 snd_soc_dapm_add_routes(dapm, route, num_routes);
1150 snd_soc_dapm_new_widgets(dapm->card);
1156 static int hdac_hdmi_init_dai_map(struct hdac_device *hdev)
1158 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1159 struct hdac_hdmi_dai_port_map *dai_map;
1160 struct hdac_hdmi_cvt *cvt;
1163 if (list_empty(&hdmi->cvt_list))
1166 list_for_each_entry(cvt, &hdmi->cvt_list, head) {
1167 dai_map = &hdmi->dai_map[dai_id];
1168 dai_map->dai_id = dai_id;
1173 if (dai_id == HDA_MAX_CVTS) {
1174 dev_warn(&hdev->dev,
1175 "Max dais supported: %d\n", dai_id);
1183 static int hdac_hdmi_add_cvt(struct hdac_device *hdev, hda_nid_t nid)
1185 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1186 struct hdac_hdmi_cvt *cvt;
1187 char name[NAME_SIZE];
1189 cvt = devm_kzalloc(&hdev->dev, sizeof(*cvt), GFP_KERNEL);
1194 sprintf(name, "cvt %d", cvt->nid);
1195 cvt->name = devm_kstrdup(&hdev->dev, name, GFP_KERNEL);
1199 list_add_tail(&cvt->head, &hdmi->cvt_list);
1202 return hdac_hdmi_query_cvt_params(hdev, cvt);
1205 static int hdac_hdmi_parse_eld(struct hdac_device *hdev,
1206 struct hdac_hdmi_port *port)
1208 unsigned int ver, mnl;
1210 ver = (port->eld.eld_buffer[DRM_ELD_VER] & DRM_ELD_VER_MASK)
1211 >> DRM_ELD_VER_SHIFT;
1213 if (ver != ELD_VER_CEA_861D && ver != ELD_VER_PARTIAL) {
1214 dev_err(&hdev->dev, "HDMI: Unknown ELD version %d\n", ver);
1218 mnl = (port->eld.eld_buffer[DRM_ELD_CEA_EDID_VER_MNL] &
1219 DRM_ELD_MNL_MASK) >> DRM_ELD_MNL_SHIFT;
1221 if (mnl > ELD_MAX_MNL) {
1222 dev_err(&hdev->dev, "HDMI: MNL Invalid %d\n", mnl);
1226 port->eld.info.spk_alloc = port->eld.eld_buffer[DRM_ELD_SPEAKER];
1231 static void hdac_hdmi_present_sense(struct hdac_hdmi_pin *pin,
1232 struct hdac_hdmi_port *port)
1234 struct hdac_device *hdev = pin->hdev;
1235 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1236 struct hdac_hdmi_pcm *pcm;
1244 * In case of non MST pin, get_eld info API expectes port
1247 mutex_lock(&hdmi->pin_mutex);
1248 port->eld.monitor_present = false;
1250 if (pin->mst_capable)
1253 size = snd_hdac_acomp_get_eld(hdev, pin->nid, port_id,
1254 &port->eld.monitor_present,
1255 port->eld.eld_buffer,
1259 size = min(size, ELD_MAX_SIZE);
1260 if (hdac_hdmi_parse_eld(hdev, port) < 0)
1265 port->eld.eld_valid = true;
1266 port->eld.eld_size = size;
1268 port->eld.eld_valid = false;
1269 port->eld.eld_size = 0;
1272 pcm = hdac_hdmi_get_pcm(hdev, port);
1274 if (!port->eld.monitor_present || !port->eld.eld_valid) {
1276 dev_err(&hdev->dev, "%s: disconnect for pin:port %d:%d\n",
1277 __func__, pin->nid, port->id);
1280 * PCMs are not registered during device probe, so don't
1281 * report jack here. It will be done in usermode mux
1285 hdac_hdmi_jack_report(pcm, port, false);
1287 mutex_unlock(&hdmi->pin_mutex);
1291 if (port->eld.monitor_present && port->eld.eld_valid) {
1293 hdac_hdmi_jack_report(pcm, port, true);
1295 print_hex_dump_debug("ELD: ", DUMP_PREFIX_OFFSET, 16, 1,
1296 port->eld.eld_buffer, port->eld.eld_size, false);
1299 mutex_unlock(&hdmi->pin_mutex);
1302 static int hdac_hdmi_add_ports(struct hdac_device *hdev,
1303 struct hdac_hdmi_pin *pin)
1305 struct hdac_hdmi_port *ports;
1306 int max_ports = HDA_MAX_PORTS;
1310 * FIXME: max_port may vary for each platform, so pass this as
1311 * as driver data or query from i915 interface when this API is
1315 ports = devm_kcalloc(&hdev->dev, max_ports, sizeof(*ports), GFP_KERNEL);
1319 for (i = 0; i < max_ports; i++) {
1324 pin->num_ports = max_ports;
1328 static int hdac_hdmi_add_pin(struct hdac_device *hdev, hda_nid_t nid)
1330 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1331 struct hdac_hdmi_pin *pin;
1334 pin = devm_kzalloc(&hdev->dev, sizeof(*pin), GFP_KERNEL);
1339 pin->mst_capable = false;
1341 ret = hdac_hdmi_add_ports(hdev, pin);
1345 list_add_tail(&pin->head, &hdmi->pin_list);
1347 hdmi->num_ports += pin->num_ports;
1352 #define INTEL_VENDOR_NID_0x2 0x02
1353 #define INTEL_VENDOR_NID_0x8 0x08
1354 #define INTEL_VENDOR_NID_0xb 0x0b
1355 #define INTEL_GET_VENDOR_VERB 0xf81
1356 #define INTEL_SET_VENDOR_VERB 0x781
1357 #define INTEL_EN_DP12 0x02 /* enable DP 1.2 features */
1358 #define INTEL_EN_ALL_PIN_CVTS 0x01 /* enable 2nd & 3rd pins and convertors */
1360 static void hdac_hdmi_skl_enable_all_pins(struct hdac_device *hdev)
1362 unsigned int vendor_param;
1363 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1364 unsigned int vendor_nid = hdmi->drv_data->vendor_nid;
1366 vendor_param = snd_hdac_codec_read(hdev, vendor_nid, 0,
1367 INTEL_GET_VENDOR_VERB, 0);
1368 if (vendor_param == -1 || vendor_param & INTEL_EN_ALL_PIN_CVTS)
1371 vendor_param |= INTEL_EN_ALL_PIN_CVTS;
1372 vendor_param = snd_hdac_codec_read(hdev, vendor_nid, 0,
1373 INTEL_SET_VENDOR_VERB, vendor_param);
1374 if (vendor_param == -1)
1378 static void hdac_hdmi_skl_enable_dp12(struct hdac_device *hdev)
1380 unsigned int vendor_param;
1381 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1382 unsigned int vendor_nid = hdmi->drv_data->vendor_nid;
1384 vendor_param = snd_hdac_codec_read(hdev, vendor_nid, 0,
1385 INTEL_GET_VENDOR_VERB, 0);
1386 if (vendor_param == -1 || vendor_param & INTEL_EN_DP12)
1389 /* enable DP1.2 mode */
1390 vendor_param |= INTEL_EN_DP12;
1391 vendor_param = snd_hdac_codec_read(hdev, vendor_nid, 0,
1392 INTEL_SET_VENDOR_VERB, vendor_param);
1393 if (vendor_param == -1)
1398 static const struct snd_soc_dai_ops hdmi_dai_ops = {
1399 .startup = hdac_hdmi_pcm_open,
1400 .shutdown = hdac_hdmi_pcm_close,
1401 .hw_params = hdac_hdmi_set_hw_params,
1402 .set_tdm_slot = hdac_hdmi_set_tdm_slot,
1406 * Each converter can support a stream independently. So a dai is created
1407 * based on the number of converter queried.
1409 static int hdac_hdmi_create_dais(struct hdac_device *hdev,
1410 struct snd_soc_dai_driver **dais,
1411 struct hdac_hdmi_priv *hdmi, int num_dais)
1413 struct snd_soc_dai_driver *hdmi_dais;
1414 struct hdac_hdmi_cvt *cvt;
1415 char name[NAME_SIZE], dai_name[NAME_SIZE];
1418 unsigned int rate_max = 384000, rate_min = 8000;
1422 hdmi_dais = devm_kzalloc(&hdev->dev,
1423 (sizeof(*hdmi_dais) * num_dais),
1428 list_for_each_entry(cvt, &hdmi->cvt_list, head) {
1429 ret = snd_hdac_query_supported_pcm(hdev, cvt->nid,
1430 &rates, &formats, &bps);
1434 /* Filter out 44.1, 88.2 and 176.4Khz */
1435 rates &= ~(SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_88200 |
1436 SNDRV_PCM_RATE_176400);
1440 sprintf(dai_name, "intel-hdmi-hifi%d", i+1);
1441 hdmi_dais[i].name = devm_kstrdup(&hdev->dev,
1442 dai_name, GFP_KERNEL);
1444 if (!hdmi_dais[i].name)
1447 snprintf(name, sizeof(name), "hifi%d", i+1);
1448 hdmi_dais[i].playback.stream_name =
1449 devm_kstrdup(&hdev->dev, name, GFP_KERNEL);
1450 if (!hdmi_dais[i].playback.stream_name)
1454 * Set caps based on capability queried from the converter.
1455 * It will be constrained runtime based on ELD queried.
1457 hdmi_dais[i].playback.formats = formats;
1458 hdmi_dais[i].playback.rates = rates;
1459 hdmi_dais[i].playback.rate_max = rate_max;
1460 hdmi_dais[i].playback.rate_min = rate_min;
1461 hdmi_dais[i].playback.channels_min = 2;
1462 hdmi_dais[i].playback.channels_max = 2;
1463 hdmi_dais[i].playback.sig_bits = bps;
1464 hdmi_dais[i].ops = &hdmi_dai_ops;
1469 hdmi->dai_drv = hdmi_dais;
1475 * Parse all nodes and store the cvt/pin nids in array
1476 * Add one time initialization for pin and cvt widgets
1478 static int hdac_hdmi_parse_and_map_nid(struct hdac_device *hdev,
1479 struct snd_soc_dai_driver **dais, int *num_dais)
1483 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1486 hdac_hdmi_skl_enable_all_pins(hdev);
1487 hdac_hdmi_skl_enable_dp12(hdev);
1489 num_nodes = snd_hdac_get_sub_nodes(hdev, hdev->afg, &nid);
1490 if (!nid || num_nodes <= 0) {
1491 dev_warn(&hdev->dev, "HDMI: failed to get afg sub nodes\n");
1495 for (i = 0; i < num_nodes; i++, nid++) {
1499 caps = get_wcaps(hdev, nid);
1500 type = get_wcaps_type(caps);
1502 if (!(caps & AC_WCAP_DIGITAL))
1507 case AC_WID_AUD_OUT:
1508 ret = hdac_hdmi_add_cvt(hdev, nid);
1514 ret = hdac_hdmi_add_pin(hdev, nid);
1521 if (!hdmi->num_pin || !hdmi->num_cvt) {
1523 dev_err(&hdev->dev, "Bad pin/cvt setup in %s\n", __func__);
1527 ret = hdac_hdmi_create_dais(hdev, dais, hdmi, hdmi->num_cvt);
1529 dev_err(&hdev->dev, "Failed to create dais with err: %d\n",
1534 *num_dais = hdmi->num_cvt;
1535 ret = hdac_hdmi_init_dai_map(hdev);
1537 dev_err(&hdev->dev, "Failed to init DAI map with err: %d\n",
1542 static int hdac_hdmi_pin2port(void *aptr, int pin)
1544 struct hdac_device *hdev = aptr;
1545 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1546 const int *map = hdmi->drv_data->port_map;
1549 if (!hdmi->drv_data->port_num)
1550 return pin - 4; /* map NID 0x05 -> port #1 */
1553 * looking for the pin number in the mapping table and return
1554 * the index which indicate the port number
1556 for (i = 0; i < hdmi->drv_data->port_num; i++) {
1561 /* return -1 if pin number exceeds our expectation */
1562 dev_err(&hdev->dev, "Can't find the port for pin %d\n", pin);
1566 static void hdac_hdmi_eld_notify_cb(void *aptr, int port, int pipe)
1568 struct hdac_device *hdev = aptr;
1569 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1570 struct hdac_hdmi_pin *pin = NULL;
1571 struct hdac_hdmi_port *hport = NULL;
1572 struct snd_soc_component *component = hdmi->component;
1576 if (!hdmi->drv_data->port_num) {
1577 /* for legacy platforms */
1578 pin_nid = port + 0x04;
1579 } else if (port < hdmi->drv_data->port_num) {
1580 /* get pin number from the pin2port mapping table */
1581 pin_nid = hdmi->drv_data->port_map[port - 1];
1583 dev_err(&hdev->dev, "Can't find the pin for port %d\n", port);
1587 dev_dbg(&hdev->dev, "%s: for pin:%d port=%d\n", __func__,
1591 * skip notification during system suspend (but not in runtime PM);
1592 * the state will be updated at resume. Also since the ELD and
1593 * connection states are updated in anyway at the end of the resume,
1594 * we can skip it when received during PM process.
1596 if (snd_power_get_state(component->card->snd_card) !=
1600 if (atomic_read(&hdev->in_pm))
1603 list_for_each_entry(pin, &hdmi->pin_list, head) {
1604 if (pin->nid != pin_nid)
1607 /* In case of non MST pin, pipe is -1 */
1609 pin->mst_capable = false;
1610 /* if not MST, default is port[0] */
1611 hport = &pin->ports[0];
1613 for (i = 0; i < pin->num_ports; i++) {
1614 pin->mst_capable = true;
1615 if (pin->ports[i].id == pipe) {
1616 hport = &pin->ports[i];
1623 hdac_hdmi_present_sense(pin, hport);
1628 static struct drm_audio_component_audio_ops aops = {
1629 .pin2port = hdac_hdmi_pin2port,
1630 .pin_eld_notify = hdac_hdmi_eld_notify_cb,
1633 static struct snd_pcm *hdac_hdmi_get_pcm_from_id(struct snd_soc_card *card,
1636 struct snd_soc_pcm_runtime *rtd;
1638 for_each_card_rtds(card, rtd) {
1639 if (rtd->pcm && (rtd->pcm->device == device))
1646 /* create jack pin kcontrols */
1647 static int create_fill_jack_kcontrols(struct snd_soc_card *card,
1648 struct hdac_device *hdev)
1650 struct hdac_hdmi_pin *pin;
1651 struct snd_kcontrol_new *kc;
1652 char kc_name[NAME_SIZE], xname[NAME_SIZE];
1655 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1656 struct snd_soc_component *component = hdmi->component;
1658 kc = devm_kcalloc(component->dev, hdmi->num_ports,
1659 sizeof(*kc), GFP_KERNEL);
1664 list_for_each_entry(pin, &hdmi->pin_list, head) {
1665 for (j = 0; j < pin->num_ports; j++) {
1666 snprintf(xname, sizeof(xname), "hif%d-%d Jack",
1667 pin->nid, pin->ports[j].id);
1668 name = devm_kstrdup(component->dev, xname, GFP_KERNEL);
1671 snprintf(kc_name, sizeof(kc_name), "%s Switch", xname);
1672 kc[i].name = devm_kstrdup(component->dev, kc_name,
1677 kc[i].private_value = (unsigned long)name;
1678 kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1680 kc[i].info = snd_soc_dapm_info_pin_switch;
1681 kc[i].put = snd_soc_dapm_put_pin_switch;
1682 kc[i].get = snd_soc_dapm_get_pin_switch;
1687 return snd_soc_add_card_controls(card, kc, i);
1690 int hdac_hdmi_jack_port_init(struct snd_soc_component *component,
1691 struct snd_soc_dapm_context *dapm)
1693 struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component);
1694 struct hdac_device *hdev = hdmi->hdev;
1695 struct hdac_hdmi_pin *pin;
1696 struct snd_soc_dapm_widget *widgets;
1697 struct snd_soc_dapm_route *route;
1698 char w_name[NAME_SIZE];
1701 widgets = devm_kcalloc(dapm->dev, hdmi->num_ports,
1702 sizeof(*widgets), GFP_KERNEL);
1707 route = devm_kcalloc(dapm->dev, hdmi->num_ports,
1708 sizeof(*route), GFP_KERNEL);
1712 /* create Jack DAPM widget */
1713 list_for_each_entry(pin, &hdmi->pin_list, head) {
1714 for (j = 0; j < pin->num_ports; j++) {
1715 snprintf(w_name, sizeof(w_name), "hif%d-%d Jack",
1716 pin->nid, pin->ports[j].id);
1718 ret = hdac_hdmi_fill_widget_info(dapm->dev, &widgets[i],
1719 snd_soc_dapm_spk, NULL,
1720 w_name, NULL, NULL, 0, NULL, 0);
1724 pin->ports[j].jack_pin = widgets[i].name;
1725 pin->ports[j].dapm = dapm;
1727 /* add to route from Jack widget to output */
1728 hdac_hdmi_fill_route(&route[i], pin->ports[j].jack_pin,
1729 NULL, pin->ports[j].output_pin, NULL);
1735 /* Add Route from Jack widget to the output widget */
1736 ret = snd_soc_dapm_new_controls(dapm, widgets, hdmi->num_ports);
1740 ret = snd_soc_dapm_add_routes(dapm, route, hdmi->num_ports);
1744 ret = snd_soc_dapm_new_widgets(dapm->card);
1748 /* Add Jack Pin switch Kcontrol */
1749 ret = create_fill_jack_kcontrols(dapm->card, hdev);
1754 /* default set the Jack Pin switch to OFF */
1755 list_for_each_entry(pin, &hdmi->pin_list, head) {
1756 for (j = 0; j < pin->num_ports; j++)
1757 snd_soc_dapm_disable_pin(pin->ports[j].dapm,
1758 pin->ports[j].jack_pin);
1763 EXPORT_SYMBOL_GPL(hdac_hdmi_jack_port_init);
1765 int hdac_hdmi_jack_init(struct snd_soc_dai *dai, int device,
1766 struct snd_soc_jack *jack)
1768 struct snd_soc_component *component = dai->component;
1769 struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component);
1770 struct hdac_device *hdev = hdmi->hdev;
1771 struct hdac_hdmi_pcm *pcm;
1772 struct snd_pcm *snd_pcm;
1776 * this is a new PCM device, create new pcm and
1777 * add to the pcm list
1779 pcm = devm_kzalloc(&hdev->dev, sizeof(*pcm), GFP_KERNEL);
1782 pcm->pcm_id = device;
1783 pcm->cvt = hdmi->dai_map[dai->id].cvt;
1784 pcm->jack_event = 0;
1786 mutex_init(&pcm->lock);
1787 INIT_LIST_HEAD(&pcm->port_list);
1788 snd_pcm = hdac_hdmi_get_pcm_from_id(dai->component->card, device);
1790 err = snd_hdac_add_chmap_ctls(snd_pcm, device, &hdmi->chmap);
1793 "chmap control add failed with err: %d for pcm: %d\n",
1799 list_add_tail(&pcm->head, &hdmi->pcm_list);
1803 EXPORT_SYMBOL_GPL(hdac_hdmi_jack_init);
1805 static void hdac_hdmi_present_sense_all_pins(struct hdac_device *hdev,
1806 struct hdac_hdmi_priv *hdmi, bool detect_pin_caps)
1809 struct hdac_hdmi_pin *pin;
1811 list_for_each_entry(pin, &hdmi->pin_list, head) {
1812 if (detect_pin_caps) {
1814 if (hdac_hdmi_get_port_len(hdev, pin->nid) == 0)
1815 pin->mst_capable = false;
1817 pin->mst_capable = true;
1820 for (i = 0; i < pin->num_ports; i++) {
1821 if (!pin->mst_capable && i > 0)
1824 hdac_hdmi_present_sense(pin, &pin->ports[i]);
1829 static int hdmi_codec_probe(struct snd_soc_component *component)
1831 struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component);
1832 struct hdac_device *hdev = hdmi->hdev;
1833 struct snd_soc_dapm_context *dapm =
1834 snd_soc_component_get_dapm(component);
1835 struct hdac_ext_link *hlink = NULL;
1838 hdmi->component = component;
1841 * hold the ref while we probe, also no need to drop the ref on
1842 * exit, we call pm_runtime_suspend() so that will do for us
1844 hlink = snd_hdac_ext_bus_get_link(hdev->bus, dev_name(&hdev->dev));
1846 dev_err(&hdev->dev, "hdac link not found\n");
1850 snd_hdac_ext_bus_link_get(hdev->bus, hlink);
1852 ret = create_fill_widget_route_map(dapm);
1856 aops.audio_ptr = hdev;
1857 ret = snd_hdac_acomp_register_notifier(hdev->bus, &aops);
1859 dev_err(&hdev->dev, "notifier register failed: err: %d\n", ret);
1863 hdac_hdmi_present_sense_all_pins(hdev, hdmi, true);
1864 /* Imp: Store the card pointer in hda_codec */
1865 hdmi->card = dapm->card->snd_card;
1868 * Setup a device_link between card device and HDMI codec device.
1869 * The card device is the consumer and the HDMI codec device is
1870 * the supplier. With this setting, we can make sure that the audio
1871 * domain in display power will be always turned on before operating
1872 * on the HDMI audio codec registers.
1873 * Let's use the flag DL_FLAG_AUTOREMOVE_CONSUMER. This can make
1874 * sure the device link is freed when the machine driver is removed.
1876 device_link_add(component->card->dev, &hdev->dev, DL_FLAG_RPM_ACTIVE |
1877 DL_FLAG_AUTOREMOVE_CONSUMER);
1879 * hdac_device core already sets the state to active and calls
1880 * get_noresume. So enable runtime and set the device to suspend.
1882 pm_runtime_enable(&hdev->dev);
1883 pm_runtime_put(&hdev->dev);
1884 pm_runtime_suspend(&hdev->dev);
1889 static void hdmi_codec_remove(struct snd_soc_component *component)
1891 struct hdac_hdmi_priv *hdmi = snd_soc_component_get_drvdata(component);
1892 struct hdac_device *hdev = hdmi->hdev;
1895 ret = snd_hdac_acomp_register_notifier(hdev->bus, NULL);
1897 dev_err(&hdev->dev, "notifier unregister failed: err: %d\n",
1900 pm_runtime_disable(&hdev->dev);
1903 #ifdef CONFIG_PM_SLEEP
1904 static int hdmi_codec_resume(struct device *dev)
1906 struct hdac_device *hdev = dev_to_hdac_dev(dev);
1907 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1910 ret = pm_runtime_force_resume(dev);
1914 * As the ELD notify callback request is not entertained while the
1915 * device is in suspend state. Need to manually check detection of
1916 * all pins here. pin capablity change is not support, so use the
1917 * already set pin caps.
1919 * NOTE: this is safe to call even if the codec doesn't actually resume.
1920 * The pin check involves only with DRM audio component hooks, so it
1921 * works even if the HD-audio side is still dreaming peacefully.
1923 hdac_hdmi_present_sense_all_pins(hdev, hdmi, false);
1927 #define hdmi_codec_resume NULL
1930 static const struct snd_soc_component_driver hdmi_hda_codec = {
1931 .probe = hdmi_codec_probe,
1932 .remove = hdmi_codec_remove,
1933 .use_pmdown_time = 1,
1935 .non_legacy_dai_naming = 1,
1938 static void hdac_hdmi_get_chmap(struct hdac_device *hdev, int pcm_idx,
1939 unsigned char *chmap)
1941 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1942 struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
1944 memcpy(chmap, pcm->chmap, ARRAY_SIZE(pcm->chmap));
1947 static void hdac_hdmi_set_chmap(struct hdac_device *hdev, int pcm_idx,
1948 unsigned char *chmap, int prepared)
1950 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1951 struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
1952 struct hdac_hdmi_port *port;
1957 if (list_empty(&pcm->port_list))
1960 mutex_lock(&pcm->lock);
1961 pcm->chmap_set = true;
1962 memcpy(pcm->chmap, chmap, ARRAY_SIZE(pcm->chmap));
1963 list_for_each_entry(port, &pcm->port_list, head)
1965 hdac_hdmi_setup_audio_infoframe(hdev, pcm, port);
1966 mutex_unlock(&pcm->lock);
1969 static bool is_hdac_hdmi_pcm_attached(struct hdac_device *hdev, int pcm_idx)
1971 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1972 struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
1977 if (list_empty(&pcm->port_list))
1983 static int hdac_hdmi_get_spk_alloc(struct hdac_device *hdev, int pcm_idx)
1985 struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev);
1986 struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
1987 struct hdac_hdmi_port *port;
1992 if (list_empty(&pcm->port_list))
1995 port = list_first_entry(&pcm->port_list, struct hdac_hdmi_port, head);
1997 if (!port || !port->eld.eld_valid)
2000 return port->eld.info.spk_alloc;
2003 static struct hdac_hdmi_drv_data intel_icl_drv_data = {
2004 .vendor_nid = INTEL_VENDOR_NID_0x2,
2005 .port_map = icl_pin2port_map,
2006 .port_num = ARRAY_SIZE(icl_pin2port_map),
2009 static struct hdac_hdmi_drv_data intel_glk_drv_data = {
2010 .vendor_nid = INTEL_VENDOR_NID_0xb,
2013 static struct hdac_hdmi_drv_data intel_drv_data = {
2014 .vendor_nid = INTEL_VENDOR_NID_0x8,
2017 static int hdac_hdmi_dev_probe(struct hdac_device *hdev)
2019 struct hdac_hdmi_priv *hdmi_priv = NULL;
2020 struct snd_soc_dai_driver *hdmi_dais = NULL;
2021 struct hdac_ext_link *hlink = NULL;
2024 struct hdac_driver *hdrv = drv_to_hdac_driver(hdev->dev.driver);
2025 const struct hda_device_id *hdac_id = hdac_get_device_id(hdev, hdrv);
2027 /* hold the ref while we probe */
2028 hlink = snd_hdac_ext_bus_get_link(hdev->bus, dev_name(&hdev->dev));
2030 dev_err(&hdev->dev, "hdac link not found\n");
2034 snd_hdac_ext_bus_link_get(hdev->bus, hlink);
2036 hdmi_priv = devm_kzalloc(&hdev->dev, sizeof(*hdmi_priv), GFP_KERNEL);
2037 if (hdmi_priv == NULL)
2040 snd_hdac_register_chmap_ops(hdev, &hdmi_priv->chmap);
2041 hdmi_priv->chmap.ops.get_chmap = hdac_hdmi_get_chmap;
2042 hdmi_priv->chmap.ops.set_chmap = hdac_hdmi_set_chmap;
2043 hdmi_priv->chmap.ops.is_pcm_attached = is_hdac_hdmi_pcm_attached;
2044 hdmi_priv->chmap.ops.get_spk_alloc = hdac_hdmi_get_spk_alloc;
2045 hdmi_priv->hdev = hdev;
2050 if (hdac_id->driver_data)
2051 hdmi_priv->drv_data =
2052 (struct hdac_hdmi_drv_data *)hdac_id->driver_data;
2054 hdmi_priv->drv_data = &intel_drv_data;
2056 dev_set_drvdata(&hdev->dev, hdmi_priv);
2058 INIT_LIST_HEAD(&hdmi_priv->pin_list);
2059 INIT_LIST_HEAD(&hdmi_priv->cvt_list);
2060 INIT_LIST_HEAD(&hdmi_priv->pcm_list);
2061 mutex_init(&hdmi_priv->pin_mutex);
2064 * Turned off in the runtime_suspend during the first explicit
2065 * pm_runtime_suspend call.
2067 snd_hdac_display_power(hdev->bus, hdev->addr, true);
2069 ret = hdac_hdmi_parse_and_map_nid(hdev, &hdmi_dais, &num_dais);
2072 "Failed in parse and map nid with err: %d\n", ret);
2075 snd_hdac_refresh_widgets(hdev);
2077 /* ASoC specific initialization */
2078 ret = devm_snd_soc_register_component(&hdev->dev, &hdmi_hda_codec,
2079 hdmi_dais, num_dais);
2081 snd_hdac_ext_bus_link_put(hdev->bus, hlink);
2086 static int hdac_hdmi_dev_remove(struct hdac_device *hdev)
2088 snd_hdac_display_power(hdev->bus, hdev->addr, false);
2094 static int hdac_hdmi_runtime_suspend(struct device *dev)
2096 struct hdac_device *hdev = dev_to_hdac_dev(dev);
2097 struct hdac_bus *bus = hdev->bus;
2098 struct hdac_ext_link *hlink = NULL;
2100 dev_dbg(dev, "Enter: %s\n", __func__);
2102 /* controller may not have been initialized for the first time */
2108 * codec_read is preferred over codec_write to set the power state.
2109 * This way verb is send to set the power state and response
2110 * is received. So setting power state is ensured without using loop
2111 * to read the state.
2113 snd_hdac_codec_read(hdev, hdev->afg, 0, AC_VERB_SET_POWER_STATE,
2116 hlink = snd_hdac_ext_bus_get_link(bus, dev_name(dev));
2118 dev_err(dev, "hdac link not found\n");
2122 snd_hdac_codec_link_down(hdev);
2123 snd_hdac_ext_bus_link_put(bus, hlink);
2125 snd_hdac_display_power(bus, hdev->addr, false);
2130 static int hdac_hdmi_runtime_resume(struct device *dev)
2132 struct hdac_device *hdev = dev_to_hdac_dev(dev);
2133 struct hdac_bus *bus = hdev->bus;
2134 struct hdac_ext_link *hlink = NULL;
2136 dev_dbg(dev, "Enter: %s\n", __func__);
2138 /* controller may not have been initialized for the first time */
2142 hlink = snd_hdac_ext_bus_get_link(bus, dev_name(dev));
2144 dev_err(dev, "hdac link not found\n");
2148 snd_hdac_ext_bus_link_get(bus, hlink);
2149 snd_hdac_codec_link_up(hdev);
2151 snd_hdac_display_power(bus, hdev->addr, true);
2153 hdac_hdmi_skl_enable_all_pins(hdev);
2154 hdac_hdmi_skl_enable_dp12(hdev);
2157 snd_hdac_codec_read(hdev, hdev->afg, 0, AC_VERB_SET_POWER_STATE,
2163 #define hdac_hdmi_runtime_suspend NULL
2164 #define hdac_hdmi_runtime_resume NULL
2167 static const struct dev_pm_ops hdac_hdmi_pm = {
2168 SET_RUNTIME_PM_OPS(hdac_hdmi_runtime_suspend, hdac_hdmi_runtime_resume, NULL)
2169 SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, hdmi_codec_resume)
2172 static const struct hda_device_id hdmi_list[] = {
2173 HDA_CODEC_EXT_ENTRY(0x80862809, 0x100000, "Skylake HDMI", 0),
2174 HDA_CODEC_EXT_ENTRY(0x8086280a, 0x100000, "Broxton HDMI", 0),
2175 HDA_CODEC_EXT_ENTRY(0x8086280b, 0x100000, "Kabylake HDMI", 0),
2176 HDA_CODEC_EXT_ENTRY(0x8086280c, 0x100000, "Cannonlake HDMI",
2177 &intel_glk_drv_data),
2178 HDA_CODEC_EXT_ENTRY(0x8086280d, 0x100000, "Geminilake HDMI",
2179 &intel_glk_drv_data),
2180 HDA_CODEC_EXT_ENTRY(0x8086280f, 0x100000, "Icelake HDMI",
2181 &intel_icl_drv_data),
2185 MODULE_DEVICE_TABLE(hdaudio, hdmi_list);
2187 static struct hdac_driver hdmi_driver = {
2189 .name = "HDMI HDA Codec",
2190 .pm = &hdac_hdmi_pm,
2192 .id_table = hdmi_list,
2193 .probe = hdac_hdmi_dev_probe,
2194 .remove = hdac_hdmi_dev_remove,
2197 static int __init hdmi_init(void)
2199 return snd_hda_ext_driver_register(&hdmi_driver);
2202 static void __exit hdmi_exit(void)
2204 snd_hda_ext_driver_unregister(&hdmi_driver);
2207 module_init(hdmi_init);
2208 module_exit(hdmi_exit);
2210 MODULE_LICENSE("GPL v2");
2211 MODULE_DESCRIPTION("HDMI HD codec");
2212 MODULE_AUTHOR("Samreen Nilofer<samreen.nilofer@intel.com>");
2213 MODULE_AUTHOR("Subhransu S. Prusty<subhransu.s.prusty@intel.com>");