/* * hdac_hdmi.c - ASoc HDA-HDMI codec driver for Intel platforms * * Copyright (C) 2014-2015 Intel Corp * Author: Samreen Nilofer * Subhransu S. Prusty * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; version 2 of the License. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include "../../hda/local.h" #include "hdac_hdmi.h" #define NAME_SIZE 32 #define AMP_OUT_MUTE 0xb080 #define AMP_OUT_UNMUTE 0xb000 #define PIN_OUT (AC_PINCTL_OUT_EN) #define HDA_MAX_CONNECTIONS 32 #define HDA_MAX_CVTS 3 #define ELD_MAX_SIZE 256 #define ELD_FIXED_BYTES 20 struct hdac_hdmi_cvt_params { unsigned int channels_min; unsigned int channels_max; u32 rates; u64 formats; unsigned int maxbps; }; struct hdac_hdmi_cvt { struct list_head head; hda_nid_t nid; const char *name; struct hdac_hdmi_cvt_params params; }; /* Currently only spk_alloc, more to be added */ struct hdac_hdmi_parsed_eld { u8 spk_alloc; }; struct hdac_hdmi_eld { bool monitor_present; bool eld_valid; int eld_size; char eld_buffer[ELD_MAX_SIZE]; struct hdac_hdmi_parsed_eld info; }; struct hdac_hdmi_pin { struct list_head head; hda_nid_t nid; int num_mux_nids; hda_nid_t mux_nids[HDA_MAX_CONNECTIONS]; struct hdac_hdmi_eld eld; struct hdac_ext_device *edev; int repoll_count; struct delayed_work work; struct mutex lock; bool chmap_set; unsigned char chmap[8]; /* ALSA API channel-map */ int channels; /* current number of channels */ }; struct hdac_hdmi_pcm { struct list_head head; int pcm_id; struct hdac_hdmi_pin *pin; struct hdac_hdmi_cvt *cvt; struct snd_jack *jack; }; struct hdac_hdmi_dai_pin_map { int dai_id; struct hdac_hdmi_pin *pin; struct hdac_hdmi_cvt *cvt; }; struct hdac_hdmi_priv { struct hdac_hdmi_dai_pin_map dai_map[HDA_MAX_CVTS]; struct list_head pin_list; struct list_head cvt_list; struct list_head pcm_list; int num_pin; int num_cvt; struct mutex pin_mutex; struct hdac_chmap chmap; }; static struct hdac_hdmi_pcm *get_hdmi_pcm_from_id(struct hdac_hdmi_priv *hdmi, int pcm_idx) { struct hdac_hdmi_pcm *pcm; list_for_each_entry(pcm, &hdmi->pcm_list, head) { if (pcm->pcm_id == pcm_idx) return pcm; } return NULL; } static inline struct hdac_ext_device *to_hda_ext_device(struct device *dev) { struct hdac_device *hdac = dev_to_hdac_dev(dev); return to_ehdac_device(hdac); } static unsigned int sad_format(const u8 *sad) { return ((sad[0] >> 0x3) & 0x1f); } static unsigned int sad_sample_bits_lpcm(const u8 *sad) { return (sad[2] & 7); } static int hdac_hdmi_eld_limit_formats(struct snd_pcm_runtime *runtime, void *eld) { u64 formats = SNDRV_PCM_FMTBIT_S16; int i; const u8 *sad, *eld_buf = eld; sad = drm_eld_sad(eld_buf); if (!sad) goto format_constraint; for (i = drm_eld_sad_count(eld_buf); i > 0; i--, sad += 3) { if (sad_format(sad) == 1) { /* AUDIO_CODING_TYPE_LPCM */ /* * the controller support 20 and 24 bits in 32 bit * container so we set S32 */ if (sad_sample_bits_lpcm(sad) & 0x6) formats |= SNDRV_PCM_FMTBIT_S32; } } format_constraint: return snd_pcm_hw_constraint_mask64(runtime, SNDRV_PCM_HW_PARAM_FORMAT, formats); } /* HDMI ELD routines */ static unsigned int hdac_hdmi_get_eld_data(struct hdac_device *codec, hda_nid_t nid, int byte_index) { unsigned int val; val = snd_hdac_codec_read(codec, nid, 0, AC_VERB_GET_HDMI_ELDD, byte_index); dev_dbg(&codec->dev, "HDMI: ELD data byte %d: 0x%x\n", byte_index, val); return val; } static int hdac_hdmi_get_eld_size(struct hdac_device *codec, hda_nid_t nid) { return snd_hdac_codec_read(codec, nid, 0, AC_VERB_GET_HDMI_DIP_SIZE, AC_DIPSIZE_ELD_BUF); } /* * This function queries the ELD size and ELD data and fills in the buffer * passed by user */ static int hdac_hdmi_get_eld(struct hdac_device *codec, hda_nid_t nid, unsigned char *buf, int *eld_size) { int i, size, ret = 0; /* * ELD size is initialized to zero in caller function. If no errors and * ELD is valid, actual eld_size is assigned. */ size = hdac_hdmi_get_eld_size(codec, nid); if (size < ELD_FIXED_BYTES || size > ELD_MAX_SIZE) { dev_err(&codec->dev, "HDMI: invalid ELD buf size %d\n", size); return -ERANGE; } /* set ELD buffer */ for (i = 0; i < size; i++) { unsigned int val = hdac_hdmi_get_eld_data(codec, nid, i); /* * Graphics driver might be writing to ELD buffer right now. * Just abort. The caller will repoll after a while. */ if (!(val & AC_ELDD_ELD_VALID)) { dev_err(&codec->dev, "HDMI: invalid ELD data byte %d\n", i); ret = -EINVAL; goto error; } val &= AC_ELDD_ELD_DATA; /* * The first byte cannot be zero. This can happen on some DVI * connections. Some Intel chips may also need some 250ms delay * to return non-zero ELD data, even when the graphics driver * correctly writes ELD content before setting ELD_valid bit. */ if (!val && !i) { dev_err(&codec->dev, "HDMI: 0 ELD data\n"); ret = -EINVAL; goto error; } buf[i] = val; } *eld_size = size; error: return ret; } static int hdac_hdmi_setup_stream(struct hdac_ext_device *hdac, hda_nid_t cvt_nid, hda_nid_t pin_nid, u32 stream_tag, int format) { unsigned int val; dev_dbg(&hdac->hdac.dev, "cvt nid %d pnid %d stream %d format 0x%x\n", cvt_nid, pin_nid, stream_tag, format); val = (stream_tag << 4); snd_hdac_codec_write(&hdac->hdac, cvt_nid, 0, AC_VERB_SET_CHANNEL_STREAMID, val); snd_hdac_codec_write(&hdac->hdac, cvt_nid, 0, AC_VERB_SET_STREAM_FORMAT, format); return 0; } static void hdac_hdmi_set_dip_index(struct hdac_ext_device *hdac, hda_nid_t pin_nid, int packet_index, int byte_index) { int val; val = (packet_index << 5) | (byte_index & 0x1f); snd_hdac_codec_write(&hdac->hdac, pin_nid, 0, AC_VERB_SET_HDMI_DIP_INDEX, val); } struct dp_audio_infoframe { u8 type; /* 0x84 */ u8 len; /* 0x1b */ u8 ver; /* 0x11 << 2 */ u8 CC02_CT47; /* match with HDMI infoframe from this on */ u8 SS01_SF24; u8 CXT04; u8 CA; u8 LFEPBL01_LSV36_DM_INH7; }; static int hdac_hdmi_setup_audio_infoframe(struct hdac_ext_device *hdac, hda_nid_t cvt_nid, hda_nid_t pin_nid) { uint8_t buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_AUDIO_INFOFRAME_SIZE]; struct hdmi_audio_infoframe frame; struct dp_audio_infoframe dp_ai; struct hdac_hdmi_priv *hdmi = hdac->private_data; struct hdac_hdmi_pin *pin; u8 *dip; int ret; int i; const u8 *eld_buf; u8 conn_type; int channels, ca; list_for_each_entry(pin, &hdmi->pin_list, head) { if (pin->nid == pin_nid) break; } ca = snd_hdac_channel_allocation(&hdac->hdac, pin->eld.info.spk_alloc, pin->channels, pin->chmap_set, true, pin->chmap); channels = snd_hdac_get_active_channels(ca); hdmi->chmap.ops.set_channel_count(&hdac->hdac, cvt_nid, channels); snd_hdac_setup_channel_mapping(&hdmi->chmap, pin->nid, false, ca, pin->channels, pin->chmap, pin->chmap_set); eld_buf = pin->eld.eld_buffer; conn_type = drm_eld_get_conn_type(eld_buf); switch (conn_type) { case DRM_ELD_CONN_TYPE_HDMI: hdmi_audio_infoframe_init(&frame); frame.channels = channels; frame.channel_allocation = ca; ret = hdmi_audio_infoframe_pack(&frame, buffer, sizeof(buffer)); if (ret < 0) return ret; break; case DRM_ELD_CONN_TYPE_DP: memset(&dp_ai, 0, sizeof(dp_ai)); dp_ai.type = 0x84; dp_ai.len = 0x1b; dp_ai.ver = 0x11 << 2; dp_ai.CC02_CT47 = channels - 1; dp_ai.CA = ca; dip = (u8 *)&dp_ai; break; default: dev_err(&hdac->hdac.dev, "Invalid connection type: %d\n", conn_type); return -EIO; } /* stop infoframe transmission */ hdac_hdmi_set_dip_index(hdac, pin_nid, 0x0, 0x0); snd_hdac_codec_write(&hdac->hdac, pin_nid, 0, AC_VERB_SET_HDMI_DIP_XMIT, AC_DIPXMIT_DISABLE); /* Fill infoframe. Index auto-incremented */ hdac_hdmi_set_dip_index(hdac, pin_nid, 0x0, 0x0); if (conn_type == DRM_ELD_CONN_TYPE_HDMI) { for (i = 0; i < sizeof(buffer); i++) snd_hdac_codec_write(&hdac->hdac, pin_nid, 0, AC_VERB_SET_HDMI_DIP_DATA, buffer[i]); } else { for (i = 0; i < sizeof(dp_ai); i++) snd_hdac_codec_write(&hdac->hdac, pin_nid, 0, AC_VERB_SET_HDMI_DIP_DATA, dip[i]); } /* Start infoframe */ hdac_hdmi_set_dip_index(hdac, pin_nid, 0x0, 0x0); snd_hdac_codec_write(&hdac->hdac, pin_nid, 0, AC_VERB_SET_HDMI_DIP_XMIT, AC_DIPXMIT_BEST); return 0; } static void hdac_hdmi_set_power_state(struct hdac_ext_device *edev, struct hdac_hdmi_dai_pin_map *dai_map, unsigned int pwr_state) { /* Power up pin widget */ if (!snd_hdac_check_power_state(&edev->hdac, dai_map->pin->nid, pwr_state)) snd_hdac_codec_write(&edev->hdac, dai_map->pin->nid, 0, AC_VERB_SET_POWER_STATE, pwr_state); /* Power up converter */ if (!snd_hdac_check_power_state(&edev->hdac, dai_map->cvt->nid, pwr_state)) snd_hdac_codec_write(&edev->hdac, dai_map->cvt->nid, 0, AC_VERB_SET_POWER_STATE, pwr_state); } static int hdac_hdmi_playback_prepare(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { struct hdac_ext_device *hdac = snd_soc_dai_get_drvdata(dai); struct hdac_hdmi_priv *hdmi = hdac->private_data; struct hdac_hdmi_dai_pin_map *dai_map; struct hdac_hdmi_pin *pin; struct hdac_ext_dma_params *dd; int ret; dai_map = &hdmi->dai_map[dai->id]; pin = dai_map->pin; dd = (struct hdac_ext_dma_params *)snd_soc_dai_get_dma_data(dai, substream); dev_dbg(&hdac->hdac.dev, "stream tag from cpu dai %d format in cvt 0x%x\n", dd->stream_tag, dd->format); mutex_lock(&pin->lock); pin->channels = substream->runtime->channels; ret = hdac_hdmi_setup_audio_infoframe(hdac, dai_map->cvt->nid, dai_map->pin->nid); mutex_unlock(&pin->lock); if (ret < 0) return ret; return hdac_hdmi_setup_stream(hdac, dai_map->cvt->nid, dai_map->pin->nid, dd->stream_tag, dd->format); } static int hdac_hdmi_set_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *hparams, struct snd_soc_dai *dai) { struct hdac_ext_device *hdac = snd_soc_dai_get_drvdata(dai); struct hdac_hdmi_priv *hdmi = hdac->private_data; struct hdac_hdmi_dai_pin_map *dai_map; struct hdac_hdmi_pin *pin; struct hdac_ext_dma_params *dd; dai_map = &hdmi->dai_map[dai->id]; pin = dai_map->pin; if (!pin) return -ENODEV; if ((!pin->eld.monitor_present) || (!pin->eld.eld_valid)) { dev_err(&hdac->hdac.dev, "device is not configured for this pin: %d\n", pin->nid); return -ENODEV; } dd = snd_soc_dai_get_dma_data(dai, substream); if (!dd) { dd = kzalloc(sizeof(*dd), GFP_KERNEL); if (!dd) return -ENOMEM; } dd->format = snd_hdac_calc_stream_format(params_rate(hparams), params_channels(hparams), params_format(hparams), 24, 0); snd_soc_dai_set_dma_data(dai, substream, (void *)dd); return 0; } static int hdac_hdmi_playback_cleanup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { struct hdac_ext_device *edev = snd_soc_dai_get_drvdata(dai); struct hdac_ext_dma_params *dd; struct hdac_hdmi_priv *hdmi = edev->private_data; struct hdac_hdmi_dai_pin_map *dai_map; dai_map = &hdmi->dai_map[dai->id]; dd = (struct hdac_ext_dma_params *)snd_soc_dai_get_dma_data(dai, substream); if (dd) { snd_soc_dai_set_dma_data(dai, substream, NULL); kfree(dd); } return 0; } static void hdac_hdmi_enable_cvt(struct hdac_ext_device *edev, struct hdac_hdmi_dai_pin_map *dai_map) { /* Enable transmission */ snd_hdac_codec_write(&edev->hdac, dai_map->cvt->nid, 0, AC_VERB_SET_DIGI_CONVERT_1, 1); /* Category Code (CC) to zero */ snd_hdac_codec_write(&edev->hdac, dai_map->cvt->nid, 0, AC_VERB_SET_DIGI_CONVERT_2, 0); } static int hdac_hdmi_enable_pin(struct hdac_ext_device *hdac, struct hdac_hdmi_dai_pin_map *dai_map) { int mux_idx; struct hdac_hdmi_pin *pin = dai_map->pin; for (mux_idx = 0; mux_idx < pin->num_mux_nids; mux_idx++) { if (pin->mux_nids[mux_idx] == dai_map->cvt->nid) { snd_hdac_codec_write(&hdac->hdac, pin->nid, 0, AC_VERB_SET_CONNECT_SEL, mux_idx); break; } } if (mux_idx == pin->num_mux_nids) return -EIO; /* Enable out path for this pin widget */ snd_hdac_codec_write(&hdac->hdac, pin->nid, 0, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT); hdac_hdmi_set_power_state(hdac, dai_map, AC_PWRST_D0); snd_hdac_codec_write(&hdac->hdac, pin->nid, 0, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE); return 0; } static int hdac_hdmi_query_pin_connlist(struct hdac_ext_device *hdac, struct hdac_hdmi_pin *pin) { if (!(get_wcaps(&hdac->hdac, pin->nid) & AC_WCAP_CONN_LIST)) { dev_warn(&hdac->hdac.dev, "HDMI: pin %d wcaps %#x does not support connection list\n", pin->nid, get_wcaps(&hdac->hdac, pin->nid)); return -EINVAL; } pin->num_mux_nids = snd_hdac_get_connections(&hdac->hdac, pin->nid, pin->mux_nids, HDA_MAX_CONNECTIONS); if (pin->num_mux_nids == 0) dev_warn(&hdac->hdac.dev, "No connections found for pin: %d\n", pin->nid); dev_dbg(&hdac->hdac.dev, "num_mux_nids %d for pin: %d\n", pin->num_mux_nids, pin->nid); return pin->num_mux_nids; } /* * Query pcm list and return pin widget to which stream is routed. * * Also query connection list of the pin, to validate the cvt to pin map. * * Same stream rendering to multiple pins simultaneously can be done * possibly, but not supported for now in driver. So return the first pin * connected. */ static struct hdac_hdmi_pin *hdac_hdmi_get_pin_from_cvt( struct hdac_ext_device *edev, struct hdac_hdmi_priv *hdmi, struct hdac_hdmi_cvt *cvt) { struct hdac_hdmi_pcm *pcm; struct hdac_hdmi_pin *pin = NULL; int ret, i; list_for_each_entry(pcm, &hdmi->pcm_list, head) { if (pcm->cvt == cvt) { pin = pcm->pin; break; } } if (pin) { ret = hdac_hdmi_query_pin_connlist(edev, pin); if (ret < 0) return NULL; for (i = 0; i < pin->num_mux_nids; i++) { if (pin->mux_nids[i] == cvt->nid) return pin; } } return NULL; } /* * This tries to get a valid pin and set the HW constraints based on the * ELD. Even if a valid pin is not found return success so that device open * doesn't fail. */ static int hdac_hdmi_pcm_open(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { struct hdac_ext_device *hdac = snd_soc_dai_get_drvdata(dai); struct hdac_hdmi_priv *hdmi = hdac->private_data; struct hdac_hdmi_dai_pin_map *dai_map; struct hdac_hdmi_cvt *cvt; struct hdac_hdmi_pin *pin; int ret; dai_map = &hdmi->dai_map[dai->id]; cvt = dai_map->cvt; pin = hdac_hdmi_get_pin_from_cvt(hdac, hdmi, cvt); /* * To make PA and other userland happy. * userland scans devices so returning error does not help. */ if (!pin) return 0; if ((!pin->eld.monitor_present) || (!pin->eld.eld_valid)) { dev_warn(&hdac->hdac.dev, "Failed: monitor present? %d ELD valid?: %d for pin: %d\n", pin->eld.monitor_present, pin->eld.eld_valid, pin->nid); return 0; } dai_map->pin = pin; hdac_hdmi_enable_cvt(hdac, dai_map); ret = hdac_hdmi_enable_pin(hdac, dai_map); if (ret < 0) return ret; ret = hdac_hdmi_eld_limit_formats(substream->runtime, pin->eld.eld_buffer); if (ret < 0) return ret; return snd_pcm_hw_constraint_eld(substream->runtime, pin->eld.eld_buffer); } static int hdac_hdmi_trigger(struct snd_pcm_substream *substream, int cmd, struct snd_soc_dai *dai) { struct hdac_hdmi_dai_pin_map *dai_map; struct hdac_ext_device *hdac = snd_soc_dai_get_drvdata(dai); struct hdac_hdmi_priv *hdmi = hdac->private_data; int ret; dai_map = &hdmi->dai_map[dai->id]; if (cmd == SNDRV_PCM_TRIGGER_RESUME) { ret = hdac_hdmi_enable_pin(hdac, dai_map); if (ret < 0) return ret; return hdac_hdmi_playback_prepare(substream, dai); } return 0; } static void hdac_hdmi_pcm_close(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { struct hdac_ext_device *hdac = snd_soc_dai_get_drvdata(dai); struct hdac_hdmi_priv *hdmi = hdac->private_data; struct hdac_hdmi_dai_pin_map *dai_map; dai_map = &hdmi->dai_map[dai->id]; if (dai_map->pin) { snd_hdac_codec_write(&hdac->hdac, dai_map->cvt->nid, 0, AC_VERB_SET_CHANNEL_STREAMID, 0); snd_hdac_codec_write(&hdac->hdac, dai_map->cvt->nid, 0, AC_VERB_SET_STREAM_FORMAT, 0); hdac_hdmi_set_power_state(hdac, dai_map, AC_PWRST_D3); snd_hdac_codec_write(&hdac->hdac, dai_map->pin->nid, 0, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE); mutex_lock(&dai_map->pin->lock); dai_map->pin->chmap_set = false; memset(dai_map->pin->chmap, 0, sizeof(dai_map->pin->chmap)); dai_map->pin->channels = 0; mutex_unlock(&dai_map->pin->lock); dai_map->pin = NULL; } } static int hdac_hdmi_query_cvt_params(struct hdac_device *hdac, struct hdac_hdmi_cvt *cvt) { unsigned int chans; struct hdac_ext_device *edev = to_ehdac_device(hdac); struct hdac_hdmi_priv *hdmi = edev->private_data; int err; chans = get_wcaps(hdac, cvt->nid); chans = get_wcaps_channels(chans); cvt->params.channels_min = 2; cvt->params.channels_max = chans; if (chans > hdmi->chmap.channels_max) hdmi->chmap.channels_max = chans; err = snd_hdac_query_supported_pcm(hdac, cvt->nid, &cvt->params.rates, &cvt->params.formats, &cvt->params.maxbps); if (err < 0) dev_err(&hdac->dev, "Failed to query pcm params for nid %d: %d\n", cvt->nid, err); return err; } static int hdac_hdmi_fill_widget_info(struct device *dev, struct snd_soc_dapm_widget *w, enum snd_soc_dapm_type id, void *priv, const char *wname, const char *stream, struct snd_kcontrol_new *wc, int numkc) { w->id = id; w->name = devm_kstrdup(dev, wname, GFP_KERNEL); if (!w->name) return -ENOMEM; w->sname = stream; w->reg = SND_SOC_NOPM; w->shift = 0; w->kcontrol_news = wc; w->num_kcontrols = numkc; w->priv = priv; return 0; } static void hdac_hdmi_fill_route(struct snd_soc_dapm_route *route, const char *sink, const char *control, const char *src, int (*handler)(struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *sink)) { route->sink = sink; route->source = src; route->control = control; route->connected = handler; } static struct hdac_hdmi_pcm *hdac_hdmi_get_pcm(struct hdac_ext_device *edev, struct hdac_hdmi_pin *pin) { struct hdac_hdmi_priv *hdmi = edev->private_data; struct hdac_hdmi_pcm *pcm = NULL; list_for_each_entry(pcm, &hdmi->pcm_list, head) { if (pcm->pin == pin) return pcm; } return NULL; } /* * Based on user selection, map the PINs with the PCMs. */ static int hdac_hdmi_set_pin_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { int ret; struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; struct snd_soc_dapm_widget *w = snd_soc_dapm_kcontrol_widget(kcontrol); struct snd_soc_dapm_context *dapm = w->dapm; struct hdac_hdmi_pin *pin = w->priv; struct hdac_ext_device *edev = to_hda_ext_device(dapm->dev); struct hdac_hdmi_priv *hdmi = edev->private_data; struct hdac_hdmi_pcm *pcm = NULL; const char *cvt_name = e->texts[ucontrol->value.enumerated.item[0]]; ret = snd_soc_dapm_put_enum_double(kcontrol, ucontrol); if (ret < 0) return ret; mutex_lock(&hdmi->pin_mutex); list_for_each_entry(pcm, &hdmi->pcm_list, head) { if (pcm->pin == pin) pcm->pin = NULL; /* * Jack status is not reported during device probe as the * PCMs are not registered by then. So report it here. */ if (!strcmp(cvt_name, pcm->cvt->name) && !pcm->pin) { pcm->pin = pin; if (pin->eld.monitor_present && pin->eld.eld_valid) { dev_dbg(&edev->hdac.dev, "jack report for pcm=%d\n", pcm->pcm_id); snd_jack_report(pcm->jack, SND_JACK_AVOUT); } mutex_unlock(&hdmi->pin_mutex); return ret; } } mutex_unlock(&hdmi->pin_mutex); return ret; } /* * Ideally the Mux inputs should be based on the num_muxs enumerated, but * the display driver seem to be programming the connection list for the pin * widget runtime. * * So programming all the possible inputs for the mux, the user has to take * care of selecting the right one and leaving all other inputs selected to * "NONE" */ static int hdac_hdmi_create_pin_muxs(struct hdac_ext_device *edev, struct hdac_hdmi_pin *pin, struct snd_soc_dapm_widget *widget, const char *widget_name) { struct hdac_hdmi_priv *hdmi = edev->private_data; struct snd_kcontrol_new *kc; struct hdac_hdmi_cvt *cvt; struct soc_enum *se; char kc_name[NAME_SIZE]; char mux_items[NAME_SIZE]; /* To hold inputs to the Pin mux */ char *items[HDA_MAX_CONNECTIONS]; int i = 0; int num_items = hdmi->num_cvt + 1; kc = devm_kzalloc(&edev->hdac.dev, sizeof(*kc), GFP_KERNEL); if (!kc) return -ENOMEM; se = devm_kzalloc(&edev->hdac.dev, sizeof(*se), GFP_KERNEL); if (!se) return -ENOMEM; sprintf(kc_name, "Pin %d Input", pin->nid); kc->name = devm_kstrdup(&edev->hdac.dev, kc_name, GFP_KERNEL); if (!kc->name) return -ENOMEM; kc->private_value = (long)se; kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER; kc->access = 0; kc->info = snd_soc_info_enum_double; kc->put = hdac_hdmi_set_pin_mux; kc->get = snd_soc_dapm_get_enum_double; se->reg = SND_SOC_NOPM; /* enum texts: ["NONE", "cvt #", "cvt #", ...] */ se->items = num_items; se->mask = roundup_pow_of_two(se->items) - 1; sprintf(mux_items, "NONE"); items[i] = devm_kstrdup(&edev->hdac.dev, mux_items, GFP_KERNEL); if (!items[i]) return -ENOMEM; list_for_each_entry(cvt, &hdmi->cvt_list, head) { i++; sprintf(mux_items, "cvt %d", cvt->nid); items[i] = devm_kstrdup(&edev->hdac.dev, mux_items, GFP_KERNEL); if (!items[i]) return -ENOMEM; } se->texts = devm_kmemdup(&edev->hdac.dev, items, (num_items * sizeof(char *)), GFP_KERNEL); if (!se->texts) return -ENOMEM; return hdac_hdmi_fill_widget_info(&edev->hdac.dev, widget, snd_soc_dapm_mux, pin, widget_name, NULL, kc, 1); } /* Add cvt <- input <- mux route map */ static void hdac_hdmi_add_pinmux_cvt_route(struct hdac_ext_device *edev, struct snd_soc_dapm_widget *widgets, struct snd_soc_dapm_route *route, int rindex) { struct hdac_hdmi_priv *hdmi = edev->private_data; const struct snd_kcontrol_new *kc; struct soc_enum *se; int mux_index = hdmi->num_cvt + hdmi->num_pin; int i, j; for (i = 0; i < hdmi->num_pin; i++) { kc = widgets[mux_index].kcontrol_news; se = (struct soc_enum *)kc->private_value; for (j = 0; j < hdmi->num_cvt; j++) { hdac_hdmi_fill_route(&route[rindex], widgets[mux_index].name, se->texts[j + 1], widgets[j].name, NULL); rindex++; } mux_index++; } } /* * Widgets are added in the below sequence * Converter widgets for num converters enumerated * Pin widgets for num pins enumerated * Pin mux widgets to represent connenction list of pin widget * * Total widgets elements = num_cvt + num_pin + num_pin; * * Routes are added as below: * pin mux -> pin (based on num_pins) * cvt -> "Input sel control" -> pin_mux * * Total route elements: * num_pins + (pin_muxes * num_cvt) */ static int create_fill_widget_route_map(struct snd_soc_dapm_context *dapm) { struct snd_soc_dapm_widget *widgets; struct snd_soc_dapm_route *route; struct hdac_ext_device *edev = to_hda_ext_device(dapm->dev); struct hdac_hdmi_priv *hdmi = edev->private_data; struct snd_soc_dai_driver *dai_drv = dapm->component->dai_drv; char widget_name[NAME_SIZE]; struct hdac_hdmi_cvt *cvt; struct hdac_hdmi_pin *pin; int ret, i = 0, num_routes = 0; if (list_empty(&hdmi->cvt_list) || list_empty(&hdmi->pin_list)) return -EINVAL; widgets = devm_kzalloc(dapm->dev, (sizeof(*widgets) * ((2 * hdmi->num_pin) + hdmi->num_cvt)), GFP_KERNEL); if (!widgets) return -ENOMEM; /* DAPM widgets to represent each converter widget */ list_for_each_entry(cvt, &hdmi->cvt_list, head) { sprintf(widget_name, "Converter %d", cvt->nid); ret = hdac_hdmi_fill_widget_info(dapm->dev, &widgets[i], snd_soc_dapm_aif_in, &cvt->nid, widget_name, dai_drv[i].playback.stream_name, NULL, 0); if (ret < 0) return ret; i++; } list_for_each_entry(pin, &hdmi->pin_list, head) { sprintf(widget_name, "hif%d Output", pin->nid); ret = hdac_hdmi_fill_widget_info(dapm->dev, &widgets[i], snd_soc_dapm_output, &pin->nid, widget_name, NULL, NULL, 0); if (ret < 0) return ret; i++; } /* DAPM widgets to represent the connection list to pin widget */ list_for_each_entry(pin, &hdmi->pin_list, head) { sprintf(widget_name, "Pin %d Mux", pin->nid); ret = hdac_hdmi_create_pin_muxs(edev, pin, &widgets[i], widget_name); if (ret < 0) return ret; i++; /* For cvt to pin_mux mapping */ num_routes += hdmi->num_cvt; /* For pin_mux to pin mapping */ num_routes++; } route = devm_kzalloc(dapm->dev, (sizeof(*route) * num_routes), GFP_KERNEL); if (!route) return -ENOMEM; i = 0; /* Add pin <- NULL <- mux route map */ list_for_each_entry(pin, &hdmi->pin_list, head) { int sink_index = i + hdmi->num_cvt; int src_index = sink_index + hdmi->num_pin; hdac_hdmi_fill_route(&route[i], widgets[sink_index].name, NULL, widgets[src_index].name, NULL); i++; } hdac_hdmi_add_pinmux_cvt_route(edev, widgets, route, i); snd_soc_dapm_new_controls(dapm, widgets, ((2 * hdmi->num_pin) + hdmi->num_cvt)); snd_soc_dapm_add_routes(dapm, route, num_routes); snd_soc_dapm_new_widgets(dapm->card); return 0; } static int hdac_hdmi_init_dai_map(struct hdac_ext_device *edev) { struct hdac_hdmi_priv *hdmi = edev->private_data; struct hdac_hdmi_dai_pin_map *dai_map; struct hdac_hdmi_cvt *cvt; int dai_id = 0; if (list_empty(&hdmi->cvt_list)) return -EINVAL; list_for_each_entry(cvt, &hdmi->cvt_list, head) { dai_map = &hdmi->dai_map[dai_id]; dai_map->dai_id = dai_id; dai_map->cvt = cvt; dai_id++; if (dai_id == HDA_MAX_CVTS) { dev_warn(&edev->hdac.dev, "Max dais supported: %d\n", dai_id); break; } } return 0; } static int hdac_hdmi_add_cvt(struct hdac_ext_device *edev, hda_nid_t nid) { struct hdac_hdmi_priv *hdmi = edev->private_data; struct hdac_hdmi_cvt *cvt; char name[NAME_SIZE]; cvt = kzalloc(sizeof(*cvt), GFP_KERNEL); if (!cvt) return -ENOMEM; cvt->nid = nid; sprintf(name, "cvt %d", cvt->nid); cvt->name = kstrdup(name, GFP_KERNEL); list_add_tail(&cvt->head, &hdmi->cvt_list); hdmi->num_cvt++; return hdac_hdmi_query_cvt_params(&edev->hdac, cvt); } static void hdac_hdmi_parse_eld(struct hdac_ext_device *edev, struct hdac_hdmi_pin *pin) { pin->eld.info.spk_alloc = pin->eld.eld_buffer[DRM_ELD_SPEAKER]; } static void hdac_hdmi_present_sense(struct hdac_hdmi_pin *pin, int repoll) { struct hdac_ext_device *edev = pin->edev; struct hdac_hdmi_priv *hdmi = edev->private_data; struct hdac_hdmi_pcm *pcm; int val; pin->repoll_count = repoll; pm_runtime_get_sync(&edev->hdac.dev); val = snd_hdac_codec_read(&edev->hdac, pin->nid, 0, AC_VERB_GET_PIN_SENSE, 0); dev_dbg(&edev->hdac.dev, "Pin sense val %x for pin: %d\n", val, pin->nid); mutex_lock(&hdmi->pin_mutex); pin->eld.monitor_present = !!(val & AC_PINSENSE_PRESENCE); pin->eld.eld_valid = !!(val & AC_PINSENSE_ELDV); pcm = hdac_hdmi_get_pcm(edev, pin); if (!pin->eld.monitor_present || !pin->eld.eld_valid) { dev_dbg(&edev->hdac.dev, "%s: disconnect for pin %d\n", __func__, pin->nid); /* * PCMs are not registered during device probe, so don't * report jack here. It will be done in usermode mux * control select. */ if (pcm) { dev_dbg(&edev->hdac.dev, "jack report for pcm=%d\n", pcm->pcm_id); snd_jack_report(pcm->jack, 0); } mutex_unlock(&hdmi->pin_mutex); goto put_hdac_device; } if (pin->eld.monitor_present && pin->eld.eld_valid) { /* TODO: use i915 component for reading ELD later */ if (hdac_hdmi_get_eld(&edev->hdac, pin->nid, pin->eld.eld_buffer, &pin->eld.eld_size) == 0) { if (pcm) { dev_dbg(&edev->hdac.dev, "jack report for pcm=%d\n", pcm->pcm_id); snd_jack_report(pcm->jack, SND_JACK_AVOUT); } hdac_hdmi_parse_eld(edev, pin); print_hex_dump_debug("ELD: ", DUMP_PREFIX_OFFSET, 16, 1, pin->eld.eld_buffer, pin->eld.eld_size, true); } else { pin->eld.monitor_present = false; pin->eld.eld_valid = false; if (pcm) { dev_dbg(&edev->hdac.dev, "jack report for pcm=%d\n", pcm->pcm_id); snd_jack_report(pcm->jack, 0); } } } mutex_unlock(&hdmi->pin_mutex); /* * Sometimes the pin_sense may present invalid monitor * present and eld_valid. If ELD data is not valid, loop few * more times to get correct pin sense and valid ELD. */ if ((!pin->eld.monitor_present || !pin->eld.eld_valid) && repoll) schedule_delayed_work(&pin->work, msecs_to_jiffies(300)); put_hdac_device: pm_runtime_put_sync(&edev->hdac.dev); } static void hdac_hdmi_repoll_eld(struct work_struct *work) { struct hdac_hdmi_pin *pin = container_of(to_delayed_work(work), struct hdac_hdmi_pin, work); /* picked from legacy HDA driver */ if (pin->repoll_count++ > 6) pin->repoll_count = 0; hdac_hdmi_present_sense(pin, pin->repoll_count); } static int hdac_hdmi_add_pin(struct hdac_ext_device *edev, hda_nid_t nid) { struct hdac_hdmi_priv *hdmi = edev->private_data; struct hdac_hdmi_pin *pin; pin = kzalloc(sizeof(*pin), GFP_KERNEL); if (!pin) return -ENOMEM; pin->nid = nid; list_add_tail(&pin->head, &hdmi->pin_list); hdmi->num_pin++; pin->edev = edev; mutex_init(&pin->lock); INIT_DELAYED_WORK(&pin->work, hdac_hdmi_repoll_eld); return 0; } #define INTEL_VENDOR_NID 0x08 #define INTEL_GET_VENDOR_VERB 0xf81 #define INTEL_SET_VENDOR_VERB 0x781 #define INTEL_EN_DP12 0x02 /* enable DP 1.2 features */ #define INTEL_EN_ALL_PIN_CVTS 0x01 /* enable 2nd & 3rd pins and convertors */ static void hdac_hdmi_skl_enable_all_pins(struct hdac_device *hdac) { unsigned int vendor_param; vendor_param = snd_hdac_codec_read(hdac, INTEL_VENDOR_NID, 0, INTEL_GET_VENDOR_VERB, 0); if (vendor_param == -1 || vendor_param & INTEL_EN_ALL_PIN_CVTS) return; vendor_param |= INTEL_EN_ALL_PIN_CVTS; vendor_param = snd_hdac_codec_read(hdac, INTEL_VENDOR_NID, 0, INTEL_SET_VENDOR_VERB, vendor_param); if (vendor_param == -1) return; } static void hdac_hdmi_skl_enable_dp12(struct hdac_device *hdac) { unsigned int vendor_param; vendor_param = snd_hdac_codec_read(hdac, INTEL_VENDOR_NID, 0, INTEL_GET_VENDOR_VERB, 0); if (vendor_param == -1 || vendor_param & INTEL_EN_DP12) return; /* enable DP1.2 mode */ vendor_param |= INTEL_EN_DP12; vendor_param = snd_hdac_codec_read(hdac, INTEL_VENDOR_NID, 0, INTEL_SET_VENDOR_VERB, vendor_param); if (vendor_param == -1) return; } static struct snd_soc_dai_ops hdmi_dai_ops = { .startup = hdac_hdmi_pcm_open, .shutdown = hdac_hdmi_pcm_close, .hw_params = hdac_hdmi_set_hw_params, .prepare = hdac_hdmi_playback_prepare, .trigger = hdac_hdmi_trigger, .hw_free = hdac_hdmi_playback_cleanup, }; /* * Each converter can support a stream independently. So a dai is created * based on the number of converter queried. */ static int hdac_hdmi_create_dais(struct hdac_device *hdac, struct snd_soc_dai_driver **dais, struct hdac_hdmi_priv *hdmi, int num_dais) { struct snd_soc_dai_driver *hdmi_dais; struct hdac_hdmi_cvt *cvt; char name[NAME_SIZE], dai_name[NAME_SIZE]; int i = 0; u32 rates, bps; unsigned int rate_max = 384000, rate_min = 8000; u64 formats; int ret; hdmi_dais = devm_kzalloc(&hdac->dev, (sizeof(*hdmi_dais) * num_dais), GFP_KERNEL); if (!hdmi_dais) return -ENOMEM; list_for_each_entry(cvt, &hdmi->cvt_list, head) { ret = snd_hdac_query_supported_pcm(hdac, cvt->nid, &rates, &formats, &bps); if (ret) return ret; sprintf(dai_name, "intel-hdmi-hifi%d", i+1); hdmi_dais[i].name = devm_kstrdup(&hdac->dev, dai_name, GFP_KERNEL); if (!hdmi_dais[i].name) return -ENOMEM; snprintf(name, sizeof(name), "hifi%d", i+1); hdmi_dais[i].playback.stream_name = devm_kstrdup(&hdac->dev, name, GFP_KERNEL); if (!hdmi_dais[i].playback.stream_name) return -ENOMEM; /* * Set caps based on capability queried from the converter. * It will be constrained runtime based on ELD queried. */ hdmi_dais[i].playback.formats = formats; hdmi_dais[i].playback.rates = rates; hdmi_dais[i].playback.rate_max = rate_max; hdmi_dais[i].playback.rate_min = rate_min; hdmi_dais[i].playback.channels_min = 2; hdmi_dais[i].playback.channels_max = 2; hdmi_dais[i].ops = &hdmi_dai_ops; i++; } *dais = hdmi_dais; return 0; } /* * Parse all nodes and store the cvt/pin nids in array * Add one time initialization for pin and cvt widgets */ static int hdac_hdmi_parse_and_map_nid(struct hdac_ext_device *edev, struct snd_soc_dai_driver **dais, int *num_dais) { hda_nid_t nid; int i, num_nodes; struct hdac_device *hdac = &edev->hdac; struct hdac_hdmi_priv *hdmi = edev->private_data; int ret; hdac_hdmi_skl_enable_all_pins(hdac); hdac_hdmi_skl_enable_dp12(hdac); num_nodes = snd_hdac_get_sub_nodes(hdac, hdac->afg, &nid); if (!nid || num_nodes <= 0) { dev_warn(&hdac->dev, "HDMI: failed to get afg sub nodes\n"); return -EINVAL; } hdac->num_nodes = num_nodes; hdac->start_nid = nid; for (i = 0; i < hdac->num_nodes; i++, nid++) { unsigned int caps; unsigned int type; caps = get_wcaps(hdac, nid); type = get_wcaps_type(caps); if (!(caps & AC_WCAP_DIGITAL)) continue; switch (type) { case AC_WID_AUD_OUT: ret = hdac_hdmi_add_cvt(edev, nid); if (ret < 0) return ret; break; case AC_WID_PIN: ret = hdac_hdmi_add_pin(edev, nid); if (ret < 0) return ret; break; } } hdac->end_nid = nid; if (!hdmi->num_pin || !hdmi->num_cvt) return -EIO; ret = hdac_hdmi_create_dais(hdac, dais, hdmi, hdmi->num_cvt); if (ret) { dev_err(&hdac->dev, "Failed to create dais with err: %d\n", ret); return ret; } *num_dais = hdmi->num_cvt; return hdac_hdmi_init_dai_map(edev); } static void hdac_hdmi_eld_notify_cb(void *aptr, int port, int pipe) { struct hdac_ext_device *edev = aptr; struct hdac_hdmi_priv *hdmi = edev->private_data; struct hdac_hdmi_pin *pin; struct snd_soc_codec *codec = edev->scodec; /* Don't know how this mapping is derived */ hda_nid_t pin_nid = port + 0x04; dev_dbg(&edev->hdac.dev, "%s: for pin: %d\n", __func__, pin_nid); /* * skip notification during system suspend (but not in runtime PM); * the state will be updated at resume. Also since the ELD and * connection states are updated in anyway at the end of the resume, * we can skip it when received during PM process. */ if (snd_power_get_state(codec->component.card->snd_card) != SNDRV_CTL_POWER_D0) return; if (atomic_read(&edev->hdac.in_pm)) return; list_for_each_entry(pin, &hdmi->pin_list, head) { if (pin->nid == pin_nid) hdac_hdmi_present_sense(pin, 1); } } static struct i915_audio_component_audio_ops aops = { .pin_eld_notify = hdac_hdmi_eld_notify_cb, }; static struct snd_pcm *hdac_hdmi_get_pcm_from_id(struct snd_soc_card *card, int device) { struct snd_soc_pcm_runtime *rtd; list_for_each_entry(rtd, &card->rtd_list, list) { if (rtd->pcm && (rtd->pcm->device == device)) return rtd->pcm; } return NULL; } int hdac_hdmi_jack_init(struct snd_soc_dai *dai, int device) { char jack_name[NAME_SIZE]; struct snd_soc_codec *codec = dai->codec; struct hdac_ext_device *edev = snd_soc_codec_get_drvdata(codec); struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(&codec->component); struct hdac_hdmi_priv *hdmi = edev->private_data; struct hdac_hdmi_pcm *pcm; struct snd_pcm *snd_pcm; int err; /* * this is a new PCM device, create new pcm and * add to the pcm list */ pcm = kzalloc(sizeof(*pcm), GFP_KERNEL); if (!pcm) return -ENOMEM; pcm->pcm_id = device; pcm->cvt = hdmi->dai_map[dai->id].cvt; snd_pcm = hdac_hdmi_get_pcm_from_id(dai->component->card, device); if (snd_pcm) { err = snd_hdac_add_chmap_ctls(snd_pcm, device, &hdmi->chmap); if (err < 0) { dev_err(&edev->hdac.dev, "chmap control add failed with err: %d for pcm: %d\n", err, device); kfree(pcm); return err; } } list_add_tail(&pcm->head, &hdmi->pcm_list); sprintf(jack_name, "HDMI/DP, pcm=%d Jack", device); return snd_jack_new(dapm->card->snd_card, jack_name, SND_JACK_AVOUT, &pcm->jack, true, false); } EXPORT_SYMBOL_GPL(hdac_hdmi_jack_init); static int hdmi_codec_probe(struct snd_soc_codec *codec) { struct hdac_ext_device *edev = snd_soc_codec_get_drvdata(codec); struct hdac_hdmi_priv *hdmi = edev->private_data; struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(&codec->component); struct hdac_hdmi_pin *pin; struct hdac_ext_link *hlink = NULL; int ret; edev->scodec = codec; /* * hold the ref while we probe, also no need to drop the ref on * exit, we call pm_runtime_suspend() so that will do for us */ hlink = snd_hdac_ext_bus_get_link(edev->ebus, dev_name(&edev->hdac.dev)); if (!hlink) { dev_err(&edev->hdac.dev, "hdac link not found\n"); return -EIO; } snd_hdac_ext_bus_link_get(edev->ebus, hlink); ret = create_fill_widget_route_map(dapm); if (ret < 0) return ret; aops.audio_ptr = edev; ret = snd_hdac_i915_register_notifier(&aops); if (ret < 0) { dev_err(&edev->hdac.dev, "notifier register failed: err: %d\n", ret); return ret; } list_for_each_entry(pin, &hdmi->pin_list, head) hdac_hdmi_present_sense(pin, 1); /* Imp: Store the card pointer in hda_codec */ edev->card = dapm->card->snd_card; /* * hdac_device core already sets the state to active and calls * get_noresume. So enable runtime and set the device to suspend. */ pm_runtime_enable(&edev->hdac.dev); pm_runtime_put(&edev->hdac.dev); pm_runtime_suspend(&edev->hdac.dev); return 0; } static int hdmi_codec_remove(struct snd_soc_codec *codec) { struct hdac_ext_device *edev = snd_soc_codec_get_drvdata(codec); pm_runtime_disable(&edev->hdac.dev); return 0; } #ifdef CONFIG_PM static int hdmi_codec_prepare(struct device *dev) { struct hdac_ext_device *edev = to_hda_ext_device(dev); struct hdac_device *hdac = &edev->hdac; pm_runtime_get_sync(&edev->hdac.dev); /* * Power down afg. * codec_read is preferred over codec_write to set the power state. * This way verb is send to set the power state and response * is received. So setting power state is ensured without using loop * to read the state. */ snd_hdac_codec_read(hdac, hdac->afg, 0, AC_VERB_SET_POWER_STATE, AC_PWRST_D3); return 0; } static void hdmi_codec_complete(struct device *dev) { struct hdac_ext_device *edev = to_hda_ext_device(dev); struct hdac_hdmi_priv *hdmi = edev->private_data; struct hdac_hdmi_pin *pin; struct hdac_device *hdac = &edev->hdac; /* Power up afg */ snd_hdac_codec_read(hdac, hdac->afg, 0, AC_VERB_SET_POWER_STATE, AC_PWRST_D0); hdac_hdmi_skl_enable_all_pins(&edev->hdac); hdac_hdmi_skl_enable_dp12(&edev->hdac); /* * As the ELD notify callback request is not entertained while the * device is in suspend state. Need to manually check detection of * all pins here. */ list_for_each_entry(pin, &hdmi->pin_list, head) hdac_hdmi_present_sense(pin, 1); pm_runtime_put_sync(&edev->hdac.dev); } #else #define hdmi_codec_prepare NULL #define hdmi_codec_complete NULL #endif static struct snd_soc_codec_driver hdmi_hda_codec = { .probe = hdmi_codec_probe, .remove = hdmi_codec_remove, .idle_bias_off = true, }; static void hdac_hdmi_get_chmap(struct hdac_device *hdac, int pcm_idx, unsigned char *chmap) { struct hdac_ext_device *edev = to_ehdac_device(hdac); struct hdac_hdmi_priv *hdmi = edev->private_data; struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx); struct hdac_hdmi_pin *pin = pcm->pin; /* chmap is already set to 0 in caller */ if (!pin) return; memcpy(chmap, pin->chmap, ARRAY_SIZE(pin->chmap)); } static void hdac_hdmi_set_chmap(struct hdac_device *hdac, int pcm_idx, unsigned char *chmap, int prepared) { struct hdac_ext_device *edev = to_ehdac_device(hdac); struct hdac_hdmi_priv *hdmi = edev->private_data; struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx); struct hdac_hdmi_pin *pin = pcm->pin; mutex_lock(&pin->lock); pin->chmap_set = true; memcpy(pin->chmap, chmap, ARRAY_SIZE(pin->chmap)); if (prepared) hdac_hdmi_setup_audio_infoframe(edev, pcm->cvt->nid, pin->nid); mutex_unlock(&pin->lock); } static bool is_hdac_hdmi_pcm_attached(struct hdac_device *hdac, int pcm_idx) { struct hdac_ext_device *edev = to_ehdac_device(hdac); struct hdac_hdmi_priv *hdmi = edev->private_data; struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx); struct hdac_hdmi_pin *pin = pcm->pin; return pin ? true:false; } static int hdac_hdmi_get_spk_alloc(struct hdac_device *hdac, int pcm_idx) { struct hdac_ext_device *edev = to_ehdac_device(hdac); struct hdac_hdmi_priv *hdmi = edev->private_data; struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx); struct hdac_hdmi_pin *pin = pcm->pin; if (!pin || !pin->eld.eld_valid) return 0; return pin->eld.info.spk_alloc; } static int hdac_hdmi_dev_probe(struct hdac_ext_device *edev) { struct hdac_device *codec = &edev->hdac; struct hdac_hdmi_priv *hdmi_priv; struct snd_soc_dai_driver *hdmi_dais = NULL; struct hdac_ext_link *hlink = NULL; int num_dais = 0; int ret = 0; /* hold the ref while we probe */ hlink = snd_hdac_ext_bus_get_link(edev->ebus, dev_name(&edev->hdac.dev)); if (!hlink) { dev_err(&edev->hdac.dev, "hdac link not found\n"); return -EIO; } snd_hdac_ext_bus_link_get(edev->ebus, hlink); hdmi_priv = devm_kzalloc(&codec->dev, sizeof(*hdmi_priv), GFP_KERNEL); if (hdmi_priv == NULL) return -ENOMEM; edev->private_data = hdmi_priv; snd_hdac_register_chmap_ops(codec, &hdmi_priv->chmap); hdmi_priv->chmap.ops.get_chmap = hdac_hdmi_get_chmap; hdmi_priv->chmap.ops.set_chmap = hdac_hdmi_set_chmap; hdmi_priv->chmap.ops.is_pcm_attached = is_hdac_hdmi_pcm_attached; hdmi_priv->chmap.ops.get_spk_alloc = hdac_hdmi_get_spk_alloc; dev_set_drvdata(&codec->dev, edev); INIT_LIST_HEAD(&hdmi_priv->pin_list); INIT_LIST_HEAD(&hdmi_priv->cvt_list); INIT_LIST_HEAD(&hdmi_priv->pcm_list); mutex_init(&hdmi_priv->pin_mutex); /* * Turned off in the runtime_suspend during the first explicit * pm_runtime_suspend call. */ ret = snd_hdac_display_power(edev->hdac.bus, true); if (ret < 0) { dev_err(&edev->hdac.dev, "Cannot turn on display power on i915 err: %d\n", ret); return ret; } ret = hdac_hdmi_parse_and_map_nid(edev, &hdmi_dais, &num_dais); if (ret < 0) { dev_err(&codec->dev, "Failed in parse and map nid with err: %d\n", ret); return ret; } /* ASoC specific initialization */ ret = snd_soc_register_codec(&codec->dev, &hdmi_hda_codec, hdmi_dais, num_dais); snd_hdac_ext_bus_link_put(edev->ebus, hlink); return ret; } static int hdac_hdmi_dev_remove(struct hdac_ext_device *edev) { struct hdac_hdmi_priv *hdmi = edev->private_data; struct hdac_hdmi_pin *pin, *pin_next; struct hdac_hdmi_cvt *cvt, *cvt_next; struct hdac_hdmi_pcm *pcm, *pcm_next; snd_soc_unregister_codec(&edev->hdac.dev); list_for_each_entry_safe(pcm, pcm_next, &hdmi->pcm_list, head) { pcm->cvt = NULL; pcm->pin = NULL; list_del(&pcm->head); kfree(pcm); } list_for_each_entry_safe(cvt, cvt_next, &hdmi->cvt_list, head) { list_del(&cvt->head); kfree(cvt->name); kfree(cvt); } list_for_each_entry_safe(pin, pin_next, &hdmi->pin_list, head) { list_del(&pin->head); kfree(pin); } return 0; } #ifdef CONFIG_PM static int hdac_hdmi_runtime_suspend(struct device *dev) { struct hdac_ext_device *edev = to_hda_ext_device(dev); struct hdac_device *hdac = &edev->hdac; struct hdac_bus *bus = hdac->bus; struct hdac_ext_bus *ebus = hbus_to_ebus(bus); struct hdac_ext_link *hlink = NULL; int err; dev_dbg(dev, "Enter: %s\n", __func__); /* controller may not have been initialized for the first time */ if (!bus) return 0; /* * Power down afg. * codec_read is preferred over codec_write to set the power state. * This way verb is send to set the power state and response * is received. So setting power state is ensured without using loop * to read the state. */ snd_hdac_codec_read(hdac, hdac->afg, 0, AC_VERB_SET_POWER_STATE, AC_PWRST_D3); err = snd_hdac_display_power(bus, false); if (err < 0) { dev_err(bus->dev, "Cannot turn on display power on i915\n"); return err; } hlink = snd_hdac_ext_bus_get_link(ebus, dev_name(dev)); if (!hlink) { dev_err(dev, "hdac link not found\n"); return -EIO; } snd_hdac_ext_bus_link_put(ebus, hlink); return 0; } static int hdac_hdmi_runtime_resume(struct device *dev) { struct hdac_ext_device *edev = to_hda_ext_device(dev); struct hdac_device *hdac = &edev->hdac; struct hdac_bus *bus = hdac->bus; struct hdac_ext_bus *ebus = hbus_to_ebus(bus); struct hdac_ext_link *hlink = NULL; int err; dev_dbg(dev, "Enter: %s\n", __func__); /* controller may not have been initialized for the first time */ if (!bus) return 0; hlink = snd_hdac_ext_bus_get_link(ebus, dev_name(dev)); if (!hlink) { dev_err(dev, "hdac link not found\n"); return -EIO; } snd_hdac_ext_bus_link_get(ebus, hlink); err = snd_hdac_display_power(bus, true); if (err < 0) { dev_err(bus->dev, "Cannot turn on display power on i915\n"); return err; } hdac_hdmi_skl_enable_all_pins(&edev->hdac); hdac_hdmi_skl_enable_dp12(&edev->hdac); /* Power up afg */ snd_hdac_codec_read(hdac, hdac->afg, 0, AC_VERB_SET_POWER_STATE, AC_PWRST_D0); return 0; } #else #define hdac_hdmi_runtime_suspend NULL #define hdac_hdmi_runtime_resume NULL #endif static const struct dev_pm_ops hdac_hdmi_pm = { SET_RUNTIME_PM_OPS(hdac_hdmi_runtime_suspend, hdac_hdmi_runtime_resume, NULL) .prepare = hdmi_codec_prepare, .complete = hdmi_codec_complete, }; static const struct hda_device_id hdmi_list[] = { HDA_CODEC_EXT_ENTRY(0x80862809, 0x100000, "Skylake HDMI", 0), HDA_CODEC_EXT_ENTRY(0x8086280a, 0x100000, "Broxton HDMI", 0), HDA_CODEC_EXT_ENTRY(0x8086280b, 0x100000, "Kabylake HDMI", 0), {} }; MODULE_DEVICE_TABLE(hdaudio, hdmi_list); static struct hdac_ext_driver hdmi_driver = { . hdac = { .driver = { .name = "HDMI HDA Codec", .pm = &hdac_hdmi_pm, }, .id_table = hdmi_list, }, .probe = hdac_hdmi_dev_probe, .remove = hdac_hdmi_dev_remove, }; static int __init hdmi_init(void) { return snd_hda_ext_driver_register(&hdmi_driver); } static void __exit hdmi_exit(void) { snd_hda_ext_driver_unregister(&hdmi_driver); } module_init(hdmi_init); module_exit(hdmi_exit); MODULE_LICENSE("GPL v2"); MODULE_DESCRIPTION("HDMI HD codec"); MODULE_AUTHOR("Samreen Nilofer"); MODULE_AUTHOR("Subhransu S. Prusty");