--- /dev/null
- - struct hdac_hdmi_dai_pin_map dai_map[3];
+ /*
+ * 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 "../../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;
+ };
+
++ +struct hdac_hdmi_eld {
++ + bool monitor_present;
++ + bool eld_valid;
++ + int eld_size;
++ + char eld_buffer[ELD_MAX_SIZE];
++ +};
++ +
+ 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 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 {
- - u8 *dip = (u8 *)&frame;
++ + 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;
+ };
+
+ 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;
- - hdmi_audio_infoframe_init(&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 = 2;
+
- - /* Default stereo for now */
- - frame.channels = 2;
++ + list_for_each_entry(pin, &hdmi->pin_list, head) {
++ + if (pin->nid == pin_nid)
++ + break;
++ + }
+
- - AC_VERB_SET_CVT_CHAN_COUNT, frame.channels - 1);
++ + eld_buf = pin->eld.eld_buffer;
++ + conn_type = drm_eld_get_conn_type(eld_buf);
+
+ /* setup channel count */
+ snd_hdac_codec_write(&hdac->hdac, cvt_nid, 0,
- - ret = hdmi_audio_infoframe_pack(&frame, buffer, sizeof(buffer));
- - if (ret < 0)
- - return ret;
++ + AC_VERB_SET_CVT_CHAN_COUNT, channels - 1);
+
- dip = (u8 *)&frame;
++ + switch (conn_type) {
++ + case DRM_ELD_CONN_TYPE_HDMI:
++ + hdmi_audio_infoframe_init(&frame);
++ +
++ + /* Default stereo for now */
++ + frame.channels = channels;
++ +
++ + ret = hdmi_audio_infoframe_pack(&frame, buffer, sizeof(buffer));
++ + if (ret < 0)
++ + return ret;
++ +
- - for (i = 0; i < sizeof(frame); i++)
- - snd_hdac_codec_write(&hdac->hdac, pin_nid, 0,
++ + 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 = 0;
++ +
++ + 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);
- for (i = 0; i < sizeof(frame); i++)
++ + if (conn_type == DRM_ELD_CONN_TYPE_HDMI) {
- AC_VERB_SET_HDMI_DIP_DATA, dip[i]);
+++ + for (i = 0; i < sizeof(buffer); i++)
++ + snd_hdac_codec_write(&hdac->hdac, pin_nid, 0,
- - if (dai->id > 0) {
- - dev_err(&hdac->hdac.dev, "Only one dai supported as of now\n");
- - return -ENODEV;
- - }
- -
+++ + 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_ext_dma_params *dd;
+ int ret;
+
- - if (dai->id > 0) {
- - dev_err(&hdac->hdac.dev, "Only one dai supported as of now\n");
+ dai_map = &hdmi->dai_map[dai->id];
+
+ 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);
+
+ ret = hdac_hdmi_setup_audio_infoframe(hdac, dai_map->cvt->nid,
+ dai_map->pin->nid);
+ 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;
+
- - dd = kzalloc(sizeof(*dd), GFP_KERNEL);
- - if (!dd)
- - return -ENOMEM;
++ + 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;
+ }
+
- - AC_VERB_SET_CHANNEL_STREAMID, 0);
++ + 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_STREAM_FORMAT, 0);
++ + AC_VERB_SET_DIGI_CONVERT_1, 1);
++ +
++ + /* Category Code (CC) to zero */
+ snd_hdac_codec_write(&edev->hdac, dai_map->cvt->nid, 0,
- - dd = (struct hdac_ext_dma_params *)snd_soc_dai_get_dma_data(dai, substream);
- - snd_soc_dai_set_dma_data(dai, substream, NULL);
++ + AC_VERB_SET_DIGI_CONVERT_2, 0);
++ +}
+
- - kfree(dd);
++ +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);
+
- - int val;
- -
- - if (dai->id > 0) {
- - dev_err(&hdac->hdac.dev, "Only one dai supported as of now\n");
- - return -ENODEV;
- - }
++ + 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;
- - val = snd_hdac_codec_read(&hdac->hdac, dai_map->pin->nid, 0,
- - AC_VERB_GET_PIN_SENSE, 0);
- - dev_info(&hdac->hdac.dev, "Val for AC_VERB_GET_PIN_SENSE: %x\n", val);
++ + struct hdac_hdmi_cvt *cvt;
++ + struct hdac_hdmi_pin *pin;
++ + int ret;
+
+ dai_map = &hdmi->dai_map[dai->id];
+
- - if ((!(val & AC_PINSENSE_PRESENCE)) || (!(val & AC_PINSENSE_ELDV))) {
- - dev_err(&hdac->hdac.dev, "Monitor presence invalid with val: %x\n", val);
- - return -ENODEV;
++ + cvt = dai_map->cvt;
++ + pin = hdac_hdmi_get_pin_from_cvt(hdac, hdmi, cvt);
+
- - hdac_hdmi_set_power_state(hdac, dai_map, AC_PWRST_D0);
++ + /*
++ + * 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: montior present? %d ELD valid?: %d for pin: %d\n",
++ + pin->eld.monitor_present, pin->eld.eld_valid, pin->nid);
++ +
++ + return 0;
+ }
+
- - snd_hdac_codec_write(&hdac->hdac, dai_map->pin->nid, 0,
- - AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE);
++ + dai_map->pin = pin;
+
- - snd_pcm_hw_constraint_step(substream->runtime, 0,
- - SNDRV_PCM_HW_PARAM_CHANNELS, 2);
++ + hdac_hdmi_enable_cvt(hdac, dai_map);
++ + ret = hdac_hdmi_enable_pin(hdac, dai_map);
++ + if (ret < 0)
++ + return ret;
+
- - hdac_hdmi_set_power_state(hdac, dai_map, AC_PWRST_D3);
++ + 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];
+
- - snd_hdac_codec_write(&hdac->hdac, dai_map->pin->nid, 0,
++ + 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);
+
- -static void hdac_hdmi_fill_widget_info(struct snd_soc_dapm_widget *w,
- - enum snd_soc_dapm_type id,
- - const char *wname, const char *stream)
++ + snd_hdac_codec_write(&hdac->hdac, dai_map->pin->nid, 0,
+ AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE);
++ +
++ + dai_map->pin = NULL;
++ + }
+ }
+
+ static int
+ hdac_hdmi_query_cvt_params(struct hdac_device *hdac, struct hdac_hdmi_cvt *cvt)
+ {
+ int err;
+
+ /* Only stereo supported as of now */
+ cvt->params.channels_min = cvt->params.channels_max = 2;
+
+ 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;
+ }
+
- - w->name = wname;
++ +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->kcontrol_news = NULL;
- - w->num_kcontrols = 0;
- - w->priv = NULL;
++ + w->name = devm_kstrdup(dev, wname, GFP_KERNEL);
++ + if (!w->name)
++ + return -ENOMEM;
++ +
+ w->sname = stream;
+ w->reg = SND_SOC_NOPM;
+ w->shift = 0;
- - const char *sink, const char *control, const char *src)
++ + 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,
- - route->connected = NULL;
++ + 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;
- -static void create_fill_widget_route_map(struct snd_soc_dapm_context *dapm,
- - struct hdac_hdmi_dai_pin_map *dai_map)
++ + route->connected = handler;
+ }
+
- - struct snd_soc_dapm_route route[1];
- - struct snd_soc_dapm_widget widgets[2] = { {0} };
++ +static struct hdac_hdmi_pcm *hdac_hdmi_get_pcm(struct hdac_ext_device *edev,
++ + struct hdac_hdmi_pin *pin)
+ {
- - memset(&route, 0, sizeof(route));
++ + struct hdac_hdmi_priv *hdmi = edev->private_data;
++ + struct hdac_hdmi_pcm *pcm = NULL;
+
- - hdac_hdmi_fill_widget_info(&widgets[0], snd_soc_dapm_output,
- - "hif1 Output", NULL);
- - hdac_hdmi_fill_widget_info(&widgets[1], snd_soc_dapm_aif_in,
- - "Coverter 1", "hif1");
++ + list_for_each_entry(pcm, &hdmi->pcm_list, head) {
++ + if (pcm->pin == pin)
++ + return pcm;
++ + }
+
- - hdac_hdmi_fill_route(&route[0], "hif1 Output", NULL, "Coverter 1");
++ + return NULL;
++ +}
+
- - snd_soc_dapm_new_controls(dapm, widgets, ARRAY_SIZE(widgets));
- - snd_soc_dapm_add_routes(dapm, route, ARRAY_SIZE(route));
++ +/*
++ + * 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]];
+
- -static int hdac_hdmi_init_dai_map(struct hdac_ext_device *edev)
++ + 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;
+ }
+
- - struct hdac_hdmi_dai_pin_map *dai_map = &hdmi->dai_map[0];
++ +/*
++ + * 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;
- - /*
- - * Currently on board only 1 pin and 1 converter is enabled for
- - * simplification, more will be added eventually
- - * So using fixed map for dai_id:pin:cvt
- - */
- - cvt = list_first_entry(&hdmi->cvt_list, struct hdac_hdmi_cvt, head);
- - pin = list_first_entry(&hdmi->pin_list, struct hdac_hdmi_pin, head);
++ + 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;
+
- - dai_map->dai_id = 0;
- - dai_map->pin = pin;
++ + widgets = devm_kzalloc(dapm->dev,
++ + (sizeof(*widgets) * ((2 * hdmi->num_pin) + hdmi->num_cvt)),
++ + GFP_KERNEL);
+
- - dai_map->cvt = cvt;
++ + if (!widgets)
++ + return -ENOMEM;
+
- - /* Enable out path for this pin widget */
- - snd_hdac_codec_write(&edev->hdac, pin->nid, 0,
- - AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT);
++ + /* 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++;
++ + }
+
- - /* Enable transmission */
- - snd_hdac_codec_write(&edev->hdac, cvt->nid, 0,
- - AC_VERB_SET_DIGI_CONVERT_1, 1);
++ + 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++;
++ + }
+
- - /* Category Code (CC) to zero */
- - snd_hdac_codec_write(&edev->hdac, cvt->nid, 0,
- - AC_VERB_SET_DIGI_CONVERT_2, 0);
++ + /* 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++;
+
- - snd_hdac_codec_write(&edev->hdac, pin->nid, 0,
- - AC_VERB_SET_CONNECT_SEL, 0);
++ + /* For cvt to pin_mux mapping */
++ + num_routes += hdmi->num_cvt;
++ +
++ + /* For pin_mux to pin mapping */
++ + num_routes++;
++ + }
+
- -static int hdac_hdmi_parse_and_map_nid(struct hdac_ext_device *edev)
++ + 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_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);
++ + }
++ +
++ + print_hex_dump_bytes("ELD: ", DUMP_PREFIX_OFFSET,
++ + pin->eld.eld_buffer, pin->eld.eld_size);
++ + } 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;
++ + 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
+ */
- - create_fill_widget_route_map(dapm, &hdmi->dai_map[0]);
++ +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)
++ +{
++ + 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,
++ +};
++ +
++ +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;
++ +
++ + /*
++ + * 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;
++ +
++ + 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;
++ + int ret;
+
+ edev->scodec = codec;
+
- -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,
- - .hw_free = hdac_hdmi_playback_cleanup,
- -};
- -
- -static struct snd_soc_dai_driver hdmi_dais[] = {
- - { .name = "intel-hdmi-hif1",
- - .playback = {
- - .stream_name = "hif1",
- - .channels_min = 2,
- - .channels_max = 2,
- - .rates = SNDRV_PCM_RATE_32000 |
- - SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |
- - SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 |
- - SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000,
- - .formats = SNDRV_PCM_FMTBIT_S16_LE |
- - SNDRV_PCM_FMTBIT_S20_3LE |
- - SNDRV_PCM_FMTBIT_S24_LE |
- - SNDRV_PCM_FMTBIT_S32_LE,
- -
- - },
- - .ops = &hdmi_dai_ops,
- - },
- -};
- -
++ + 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_resume(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 hdac_hdmi_pin *pin;
++ + struct hdac_device *hdac = &edev->hdac;
++ + struct hdac_bus *bus = hdac->bus;
++ + int err;
++ + unsigned long timeout;
++ +
++ + hdac_hdmi_skl_enable_all_pins(&edev->hdac);
++ + hdac_hdmi_skl_enable_dp12(&edev->hdac);
++ +
++ + /* Power up afg */
++ + if (!snd_hdac_check_power_state(hdac, hdac->afg, AC_PWRST_D0)) {
++ +
++ + snd_hdac_codec_write(hdac, hdac->afg, 0,
++ + AC_VERB_SET_POWER_STATE, AC_PWRST_D0);
++ +
++ + /* Wait till power state is set to D0 */
++ + timeout = jiffies + msecs_to_jiffies(1000);
++ + while (!snd_hdac_check_power_state(hdac, hdac->afg, AC_PWRST_D0)
++ + && time_before(jiffies, timeout)) {
++ + msleep(50);
++ + }
++ + }
++ +
++ + /*
++ + * 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);
++ +
++ + /*
++ + * Codec power is turned ON during controller resume.
++ + * Turn it OFF here
++ + */
++ + err = snd_hdac_display_power(bus, false);
++ + if (err < 0) {
++ + dev_err(bus->dev,
++ + "Cannot turn OFF display power on i915, err: %d\n",
++ + err);
++ + return err;
++ + }
++ +
++ + return 0;
++ +}
++ +#else
++ +#define hdmi_codec_resume NULL
++ +#endif
++ +
+ static struct snd_soc_codec_driver hdmi_hda_codec = {
+ .probe = hdmi_codec_probe,
+ .remove = hdmi_codec_remove,
++ + .resume = hdmi_codec_resume,
+ .idle_bias_off = true,
+ };
+
- - ret = hdac_hdmi_parse_and_map_nid(edev);
- - if (ret < 0)
+ 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;
++ + int num_dais = 0;
+ int ret = 0;
+
+ hdmi_priv = devm_kzalloc(&codec->dev, sizeof(*hdmi_priv), GFP_KERNEL);
+ if (hdmi_priv == NULL)
+ return -ENOMEM;
+
+ edev->private_data = hdmi_priv;
+
+ 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);
+
- - hdmi_dais, ARRAY_SIZE(hdmi_dais));
++ + /*
++ + * 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 */
+ return snd_soc_register_codec(&codec->dev, &hdmi_hda_codec,
- - if (!snd_hdac_check_power_state(hdac, hdac->afg, AC_PWRST_D3))
++ + hdmi_dais, num_dais);
+ }
+
+ 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;
++ + unsigned long timeout;
+ 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 */
++ + if (!snd_hdac_check_power_state(hdac, hdac->afg, AC_PWRST_D3)) {
+ snd_hdac_codec_write(hdac, hdac->afg, 0,
+ AC_VERB_SET_POWER_STATE, AC_PWRST_D3);
+
++ + /* Wait till power state is set to D3 */
++ + timeout = jiffies + msecs_to_jiffies(1000);
++ + while (!snd_hdac_check_power_state(hdac, hdac->afg, AC_PWRST_D3)
++ + && time_before(jiffies, timeout)) {
++ +
++ + msleep(50);
++ + }
++ + }
++ +
+ err = snd_hdac_display_power(bus, false);
+ if (err < 0) {
+ dev_err(bus->dev, "Cannot turn on display power on i915\n");
+ return err;
+ }
+
+ 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;
+ int err;
+
+ dev_dbg(dev, "Enter: %s\n", __func__);
+
+ /* controller may not have been initialized for the first time */
+ if (!bus)
+ return 0;
+
+ 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 */
+ if (!snd_hdac_check_power_state(hdac, hdac->afg, AC_PWRST_D0))
+ snd_hdac_codec_write(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)
+ };
+
+ 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),
+ {}
+ };
+
+ 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>");
projects / karo-tx-linux.git / commitdiff