| /* |
| * hdac_hdmi.c - ASoc HDA-HDMI codec driver for Intel platforms |
| * |
| * Copyright (C) 2014-2015 Intel Corp |
| * Author: Samreen Nilofer <samreen.nilofer@intel.com> |
| * Subhransu S. Prusty <subhransu.s.prusty@intel.com> |
| * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| * |
| * 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 <linux/init.h> |
| #include <linux/delay.h> |
| #include <linux/module.h> |
| #include <linux/pm_runtime.h> |
| #include <linux/hdmi.h> |
| #include <drm/drm_edid.h> |
| #include <sound/pcm_params.h> |
| #include <sound/jack.h> |
| #include <sound/soc.h> |
| #include <sound/hdaudio_ext.h> |
| #include <sound/hda_i915.h> |
| #include <sound/pcm_drm_eld.h> |
| #include <sound/hda_chmap.h> |
| #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<samreen.nilofer@intel.com>"); |
| MODULE_AUTHOR("Subhransu S. Prusty<subhransu.s.prusty@intel.com>"); |