It is possible that some pin widget may return with no converter connected. So don't throw error if none are found to be connected. Instead print a warning and continue.

Signed-off-by: Subhransu S. Prusty subhransu.s.prusty@intel.com Signed-off-by: Vinod Koul vinod.koul@intel.com --- sound/soc/codecs/hdac_hdmi.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/sound/soc/codecs/hdac_hdmi.c b/sound/soc/codecs/hdac_hdmi.c index 929f27b..429fa14 100644 --- a/sound/soc/codecs/hdac_hdmi.c +++ b/sound/soc/codecs/hdac_hdmi.c @@ -316,10 +316,12 @@ static int hdac_hdmi_query_pin_connlist(struct hdac_ext_device *hdac,

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_err(&hdac->hdac.dev, "No connections found\n"); - return -ENODEV; - } + 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; }

This patch uses i915 component framework to register for hotplug notification. And once it identifies valid pin sense and valid eld, reads the eld into the corresponding pin map buffer. For now it directly sends the verbs and reads the eld. Later this will use the i915 framework to populate ELD buffer once available.

The eld reading APIs in legacy hda are required for ASoC skylake hdmi driver as well. So keeping a copy here and will remove once component ops for reading ELD are merged in hda core.

Also read the monitor present sense during resume and ignore the ELD notify from graphics during PM as is done in legacy hda. Reference commits:

git: git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git

commit 33d58f2bb446 ("ALSA: hda - Skip ELD notification during PM process") commit 8ae743e82f0b ("ALSA: hda - Skip ELD notification during system suspend")

Signed-off-by: Subhransu S. Prusty subhransu.s.prusty@intel.com Signed-off-by: Vinod Koul vinod.koul@intel.com --- sound/soc/codecs/hdac_hdmi.c | 214 +++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 207 insertions(+), 7 deletions(-)

diff --git a/sound/soc/codecs/hdac_hdmi.c b/sound/soc/codecs/hdac_hdmi.c index 31ab37b..65796ce 100644 --- a/sound/soc/codecs/hdac_hdmi.c +++ b/sound/soc/codecs/hdac_hdmi.c @@ -34,6 +34,9 @@

#define HDA_MAX_CONNECTIONS 32

+#define ELD_MAX_SIZE 256 +#define ELD_FIXED_BYTES 20 + struct hdac_hdmi_cvt_params { unsigned int channels_min; unsigned int channels_max; @@ -48,11 +51,22 @@ struct hdac_hdmi_cvt { struct hdac_hdmi_cvt_params params; };

+struct 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 hdmi_eld eld; + struct hdac_ext_device *edev; + int repoll_count; + struct delayed_work work; };

struct hdac_hdmi_dai_pin_map { @@ -76,6 +90,81 @@ static inline struct hdac_ext_device *to_hda_ext_device(struct device *dev) return container_of(hdac, struct hdac_ext_device, hdac); }

+ /* 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 + */ +int hdac_hdmi_get_eld(struct hdac_device *codec, hda_nid_t nid, + unsigned char *buf, int *eld_size) +{ + int i; + int ret = 0; + int size; + + /* + * 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_info(&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_info(&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_dbg(&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) @@ -246,7 +335,6 @@ static int hdac_hdmi_pcm_open(struct snd_pcm_substream *substream, 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; - int val;

if (dai->id > 0) { dev_err(&hdac->hdac.dev, "Only one dai supported as of now\n"); @@ -255,12 +343,11 @@ static int hdac_hdmi_pcm_open(struct snd_pcm_substream *substream,

dai_map = &hdmi->dai_map[dai->id];

- 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); - - if ((!(val & AC_PINSENSE_PRESENCE)) || (!(val & AC_PINSENSE_ELDV))) { - dev_err(&hdac->hdac.dev, "Monitor presence invalid with val: %x\n", val); + if ((!dai_map->pin->eld.monitor_present) || + (!dai_map->pin->eld.eld_valid)) { + dev_err(&hdac->hdac.dev, "Failed: montior present? %d eld valid?: %d\n", + dai_map->pin->eld.monitor_present, + dai_map->pin->eld.eld_valid); return -ENODEV; }

@@ -432,6 +519,68 @@ static int hdac_hdmi_add_cvt(struct hdac_ext_device *edev, hda_nid_t nid) 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; + int val; + + if (!edev) + return; + + 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); + pin->eld.monitor_present = !!(val & AC_PINSENSE_PRESENCE); + pin->eld.eld_valid = !!(val & AC_PINSENSE_ELDV); + + if (!pin->eld.monitor_present || !pin->eld.eld_valid) { + dev_info(&edev->hdac.dev, "%s: disconnect or eld_invalid\n", + __func__); + goto put_hdac_device; + } + + if (pin->eld.monitor_present && pin->eld.eld_valid) { + /* TODO: Use i915 cmpnt framework when available */ + if (hdac_hdmi_get_eld(&edev->hdac, pin->nid, + pin->eld.eld_buffer, + &pin->eld.eld_size) == 0) { + print_hex_dump_bytes("Eld: ", DUMP_PREFIX_OFFSET, + pin->eld.eld_buffer, pin->eld.eld_size); + } else { + dev_err(&edev->hdac.dev, "ELD invalid\n"); + pin->eld.monitor_present = false; + pin->eld.eld_valid = false; + } + + } + + /* + * 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 */ + 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; @@ -446,6 +595,9 @@ static int hdac_hdmi_add_pin(struct hdac_ext_device *edev, hda_nid_t 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; }

@@ -504,17 +656,64 @@ static int hdac_hdmi_parse_and_map_nid(struct hdac_ext_device *edev) 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, +}; + 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;

create_fill_widget_route_map(dapm, &hdmi->dai_map[0]);

+ 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_eld_notify_cb(edev, (pin->nid - 0x04)); + /* Imp: Store the card pointer in hda_codec */ edev->card = dapm->card->snd_card;

@@ -659,6 +858,7 @@ static int hdac_hdmi_runtime_resume(struct device *dev) 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");

By default only one converter and pin widget are enabled. A vendor widget required to be configured to enable all the widgets of the codec.

As we are enabling the DP support enable the DP1.2 feature as well.

The changes below are copied from patch_hdmi.c

Signed-off-by: Subhransu S. Prusty subhransu.s.prusty@intel.com Signed-off-by: Vinod Koul vinod.koul@intel.com --- sound/soc/codecs/hdac_hdmi.c | 43 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+)

diff --git a/sound/soc/codecs/hdac_hdmi.c b/sound/soc/codecs/hdac_hdmi.c index d891ad7..325d22b 100644 --- a/sound/soc/codecs/hdac_hdmi.c +++ b/sound/soc/codecs/hdac_hdmi.c @@ -600,6 +600,46 @@ static int hdac_hdmi_add_pin(struct hdac_ext_device *edev, hda_nid_t nid) 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; + +} + /* * Parse all nodes and store the cvt/pin nids in array * Add one time initialization for pin and cvt widgets @@ -612,6 +652,9 @@ static int hdac_hdmi_parse_and_map_nid(struct hdac_ext_device *edev) 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");

A stream is mapped to a converter. So based on the converters queried, dais are created.

The streams can be dynamically routed to any converter. For now it is mapped statically. The dynamic mapping of stream to converter will be added when required.

Signed-off-by: Subhransu S. Prusty subhransu.s.prusty@intel.com Signed-off-by: Vinod Koul vinod.koul@intel.com --- sound/soc/codecs/hdac_hdmi.c | 124 ++++++++++++++++++++++++++++++++----------- 1 file changed, 92 insertions(+), 32 deletions(-)

diff --git a/sound/soc/codecs/hdac_hdmi.c b/sound/soc/codecs/hdac_hdmi.c index 325d22b..83248ad 100644 --- a/sound/soc/codecs/hdac_hdmi.c +++ b/sound/soc/codecs/hdac_hdmi.c @@ -29,6 +29,8 @@ #include <sound/pcm_drm_eld.h> #include "../../hda/local.h"

+#define NAME_SIZE 32 + #define AMP_OUT_MUTE 0xb080 #define AMP_OUT_UNMUTE 0xb000 #define PIN_OUT (AC_PINCTL_OUT_EN) @@ -640,11 +642,84 @@ static void hdac_hdmi_skl_enable_dp12(struct hdac_device *hdac)

}

+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 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, j; + u32 rates, bps; + unsigned int rate_max = 384000, rate_min = 8000; + u64 formats; + int ret; + static unsigned int rate_pcm[] = { + 8000, 11025, 16000, 22050, 32000, 44100, 48000, 88200, + 96000, 176400, 192000, 384000 + }; + + 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; + for (j = 0; j < ARRAY_SIZE(rate_pcm); j++) { + if (rates & (1 << j)) { + rate_min = rate_pcm[j]; + break; + } + } + + for (j = ARRAY_SIZE(rate_pcm) - 1; j >= 0; j--) { + if (rates & (1 << j)) { + rate_max = rate_pcm[j]; + break; + } + } + + sprintf(dai_name, "intel-hdmi-hifi%d", i+1); + hdmi_dais[i].name = devm_kstrdup(&hdac->dev, dai_name, + GFP_KERNEL); + + snprintf(name, sizeof(name), "hifi%d", i+1); + hdmi_dais[i].playback.stream_name = + devm_kstrdup(&hdac->dev, name, GFP_KERNEL); + 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) +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; @@ -695,6 +770,15 @@ static int hdac_hdmi_parse_and_map_nid(struct hdac_ext_device *edev) 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); }

@@ -784,38 +868,12 @@ static struct snd_soc_codec_driver hdmi_hda_codec = { .idle_bias_off = true, };

-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, - }, -}; - 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); @@ -829,13 +887,15 @@ static int hdac_hdmi_dev_probe(struct hdac_ext_device *edev) INIT_LIST_HEAD(&hdmi_priv->pin_list); INIT_LIST_HEAD(&hdmi_priv->cvt_list);

- ret = hdac_hdmi_parse_and_map_nid(edev); - if (ret < 0) + 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, - hdmi_dais, ARRAY_SIZE(hdmi_dais)); + hdmi_dais, num_dais); }

static int hdac_hdmi_dev_remove(struct hdac_ext_device *edev)

Instead of direct mapping between converter and pin, Muxes are added between them to support any converter connection to any pin.

As the possible mux inputs can only be identified during runtime, all possible routes are created to connect all converters to all pin muxes. The user should enable appropriate mux inputs to enable correct port.

In the process to support the above changes widget/route fill APIs are updated to take all required parameters.

Signed-off-by: Subhransu S. Prusty subhransu.s.prusty@intel.com Signed-off-by: Vinod Koul vinod.koul@intel.com --- sound/soc/codecs/hdac_hdmi.c | 224 ++++++++++++++++++++++++++++++++++++++----- 1 file changed, 202 insertions(+), 22 deletions(-)

diff --git a/sound/soc/codecs/hdac_hdmi.c b/sound/soc/codecs/hdac_hdmi.c index 83248ad..cded3d7 100644 --- a/sound/soc/codecs/hdac_hdmi.c +++ b/sound/soc/codecs/hdac_hdmi.c @@ -420,46 +420,224 @@ static int hdac_hdmi_query_pin_connlist(struct hdac_ext_device *hdac, return pin->num_mux_nids; }

-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) +static void 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 = wname; + w->name = devm_kstrdup(dev, wname, GFP_KERNEL); w->sname = stream; w->reg = SND_SOC_NOPM; w->shift = 0; - w->kcontrol_news = NULL; - w->num_kcontrols = 0; - w->priv = NULL; + w->kcontrol_news = wc; + w->num_kcontrols = numkc; + w->priv = priv; }

static void hdac_hdmi_fill_route(struct snd_soc_dapm_route *route, - const char *sink, const char *control, const char *src) + const char *sink, const char *control, const char *src, + int (*handler)(struct snd_soc_dapm_widget *sr, + struct snd_soc_dapm_widget *snk)) { route->sink = sink; route->source = src; route->control = control; - route->connected = NULL; + route->connected = handler; }

-static void create_fill_widget_route_map(struct snd_soc_dapm_context *dapm, - struct hdac_hdmi_dai_pin_map *dai_map) +/* + * 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 snd_soc_dapm_route route[1]; - struct snd_soc_dapm_widget widgets[2] = { {0} }; + 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); + kc->private_value = (long)se; + kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER; + kc->access = 0; + kc->info = snd_soc_info_enum_double; + kc->put = snd_soc_dapm_put_enum_double; + kc->get = snd_soc_dapm_get_enum_double;

- memset(&route, 0, sizeof(route)); + se->reg = SND_SOC_NOPM;

- 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"); + /* 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); + + 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); + } + + se->texts = devm_kmemdup(&edev->hdac.dev, items, + (num_items * sizeof(char *)), GFP_KERNEL); + + hdac_hdmi_fill_widget_info(&edev->hdac.dev, widget, snd_soc_dapm_mux, + &pin->nid, widget_name, NULL, kc, 1); + + return 0; +}

- hdac_hdmi_fill_route(&route[0], "hif1 Output", NULL, "Coverter 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 i = 0; + int ret; + int 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); + 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); + i++; + } + + list_for_each_entry(pin, &hdmi->pin_list, head) { + sprintf(widget_name, "hif%d Output", pin->nid); + hdac_hdmi_fill_widget_info(dapm->dev, &widgets[i], + snd_soc_dapm_output, &pin->nid, + widget_name, NULL, NULL, 0); + 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;

- snd_soc_dapm_new_controls(dapm, widgets, ARRAY_SIZE(widgets)); - snd_soc_dapm_add_routes(dapm, route, ARRAY_SIZE(route)); }

static int hdac_hdmi_init_dai_map(struct hdac_ext_device *edev) @@ -827,7 +1005,9 @@ static int hdmi_codec_probe(struct snd_soc_codec *codec)

edev->scodec = codec;

- create_fill_widget_route_map(dapm, &hdmi->dai_map[0]); + ret = create_fill_widget_route_map(dapm); + if (ret < 0) + return ret;

aops.audio_ptr = edev; ret = snd_hdac_i915_register_notifier(&aops);

To fill the audio infoframe it is required to identify the connection type as DP or HDMI. This patch adds an API which parses ELD and returns the display type of connected.

Signed-off-by: Subhransu S. Prusty subhransu.s.prusty@intel.com Signed-off-by: Vinod Koul vinod.koul@intel.com Cc: David Airlie airlied@linux.ie Cc: dri-devel@lists.freedesktop.org Cc: Daniel Vetter daniel.vetter@intel.com --- include/drm/drm_edid.h | 12 ++++++++++++ 1 file changed, 12 insertions(+)

diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h index 2af9769..072de90 100644 --- a/include/drm/drm_edid.h +++ b/include/drm/drm_edid.h @@ -403,6 +403,18 @@ static inline int drm_eld_size(const uint8_t *eld) return DRM_ELD_HEADER_BLOCK_SIZE + eld[DRM_ELD_BASELINE_ELD_LEN] * 4; }

+/** + * drm_eld_get_conn_type - Get device type hdmi/dp connected + * @eld: pointer to an eld memory structure + * + * The caller need to use DRM_ELD_CONN_TYPE_HDMI or DRM_ELD_CONN_TYPE_DP to + * identify the display type connected. + */ +static inline u8 drm_eld_get_conn_type(const uint8_t *eld) +{ + return eld[DRM_ELD_SAD_COUNT_CONN_TYPE] & DRM_ELD_CONN_TYPE_MASK; +} + struct edid *drm_do_get_edid(struct drm_connector *connector, int (*get_edid_block)(void *data, u8 *buf, unsigned int block, size_t len),

On Thu, Dec 03, 2015 at 05:16:34PM +0100, Takashi Iwai wrote:

On Thu, 03 Dec 2015 22:08:59 +0100, Subhransu S. Prusty wrote:

...

To fill the audio infoframe it is required to identify the connection type as DP or HDMI. This patch adds an API which parses ELD and returns the display type of connected.

Signed-off-by: Subhransu S. Prusty subhransu.s.prusty@intel.com Signed-off-by: Vinod Koul vinod.koul@intel.com Cc: David Airlie airlied@linux.ie Cc: dri-devel@lists.freedesktop.org Cc: Daniel Vetter daniel.vetter@intel.com

---

include/drm/drm_edid.h | 12 ++++++++++++ 1 file changed, 12 insertions(+)

diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h index 2af9769..072de90 100644 --- a/include/drm/drm_edid.h +++ b/include/drm/drm_edid.h @@ -403,6 +403,18 @@ static inline int drm_eld_size(const uint8_t *eld) return DRM_ELD_HEADER_BLOCK_SIZE + eld[DRM_ELD_BASELINE_ELD_LEN] * 4; }

+/**

• • drm_eld_get_conn_type - Get device type hdmi/dp connected
• • @eld: pointer to an eld memory structure
• • The caller need to use DRM_ELD_CONN_TYPE_HDMI or DRM_ELD_CONN_TYPE_DP to
• • identify the display type connected.

Constants should be marked with '%'.

Sure will add it.

Regards, Subhransu

Takashi

--

Hi Subhransu,

On 3 December 2015 at 21:09, Subhransu S. Prusty subhransu.s.prusty@intel.com wrote:

•   if (conn_type == 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;
  

•           dip = (u8 *)&frame;
  

•   } else if (conn_type == 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 *)&dip;
  

Surely this should be dip = (u8 *) &dp_ai, instead of pointing to itself?

Cheers, Daniel

On 3 December 2015 at 21:09, Subhransu S. Prusty subhransu.s.prusty@intel.com wrote:

This uses the get_conn_type API added in the previous patch to identify the type of display connected and fills the infoframe accordingly.

Signed-off-by: Subhransu S. Prusty subhransu.s.prusty@intel.com Signed-off-by: Vinod Koul vinod.koul@intel.com

---

sound/soc/codecs/hdac_hdmi.c | 68 ++++++++++++++++++++++++++++++++++++++------ 1 file changed, 59 insertions(+), 9 deletions(-)

diff --git a/sound/soc/codecs/hdac_hdmi.c b/sound/soc/codecs/hdac_hdmi.c index 3ac3498..d963d92 100644 --- a/sound/soc/codecs/hdac_hdmi.c +++ b/sound/soc/codecs/hdac_hdmi.c @@ -22,6 +22,7 @@ #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/soc.h> #include <sound/hdaudio_ext.h> @@ -201,27 +202,70 @@ hdac_hdmi_set_dip_index(struct hdac_ext_device *hdac, hda_nid_t pin_nid, 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 = (u8 *)&frame;
    int ret;
    int i;
  

•   const u8 *eld_buf;
  

•   u8 conn_type;
  

•   int channels = 2;
  
  

•   hdmi_audio_infoframe_init(&frame);
  

•   list_for_each_entry(pin, &hdmi->pin_list, head) {
  

•           if (pin->nid == pin_nid)
  

•                   break;
  

•   }
  
  

•   /* Default stereo for now */
  

•   frame.channels = 2;
  

•   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,
  

•                       AC_VERB_SET_CVT_CHAN_COUNT, frame.channels - 1);
  

•                       AC_VERB_SET_CVT_CHAN_COUNT, channels - 1);
  
  

•   ret = hdmi_audio_infoframe_pack(&frame, buffer, sizeof(buffer));
  

•   if (ret < 0)
  

•           return ret;
  

•   if (conn_type == 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;
  

•           dip = (u8 *)&frame;
  

•   } else if (conn_type == 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 *)&dip;
  

•   } else {
  

•           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);
  

@@ -231,9 +275,15 @@ static int hdac_hdmi_setup_audio_infoframe(struct hdac_ext_device *hdac,

    /*  Fill infoframe. Index auto-incremented */
    hdac_hdmi_set_dip_index(hdac, pin_nid, 0x0, 0x0);

•   for (i = 0; i < sizeof(frame); i++)
  

•           snd_hdac_codec_write(&hdac->hdac, pin_nid, 0,
  

•   if (conn_type == 0) {
  

•           for (i = 0; i < sizeof(frame); i++)
  

•                   snd_hdac_codec_write(&hdac->hdac, pin_nid, 0,
                            AC_VERB_SET_HDMI_DIP_DATA, dip[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);
  

-- 1.9.1

---

dri-devel mailing list dri-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/dri-devel

From: Jeeja KP jeeja.kp@intel.com

Need to add enabling of all pins and DP1.2 feature again after resume. Also during the device in suspended state ELD notify callback is not processed. So add ELD check for all pins here.

Signed-off-by: Jeeja KP jeeja.kp@intel.com Signed-off-by: Subhransu S. Prusty subhransu.s.prusty@intel.com Signed-off-by: Vinod Koul vinod.koul@intel.com --- sound/soc/codecs/hdac_hdmi.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+)

diff --git a/sound/soc/codecs/hdac_hdmi.c b/sound/soc/codecs/hdac_hdmi.c index d963d92..73f5612 100644 --- a/sound/soc/codecs/hdac_hdmi.c +++ b/sound/soc/codecs/hdac_hdmi.c @@ -1186,9 +1186,34 @@ static int hdmi_codec_remove(struct snd_soc_codec *codec) 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; + + 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); + + 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, };

The patch

ASoC: hdac_hdmi: Fix to check num nodes correctly

has been applied to the asoc tree at

git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git

All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying to this mail.

Thanks, Mark

From 541140d43046ccd4e7b511846d22b3d3ca7367f3 Mon Sep 17 00:00:00 2001

From: "Subhransu S. Prusty" subhransu.s.prusty@intel.com Date: Wed, 9 Dec 2015 21:46:08 +0530 Subject: [PATCH] ASoC: hdac_hdmi: Fix to check num nodes correctly

commit 3c83ac23253c ("ASoC: hdac_hdmi: check error return") fixes the static checker warning reported by Dan Carpenter:

sound/soc/codecs/hdac_hdmi.c:416 hdac_hdmi_parse_and_map_nid() warn: unsigned 'hdac->num_nodes' is never less than zero.

But it doesn't fix the issue completely.

It's also a failure if no sub nodes found for an afg node. So modify the return condition appropriately.

Signed-off-by: Subhransu S. Prusty subhransu.s.prusty@intel.com Signed-off-by: Vinod Koul vinod.koul@intel.com Signed-off-by: Mark Brown broonie@kernel.org --- sound/soc/codecs/hdac_hdmi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/codecs/hdac_hdmi.c b/sound/soc/codecs/hdac_hdmi.c index b999fb2a463b..e6dc4cd037d3 100644 --- a/sound/soc/codecs/hdac_hdmi.c +++ b/sound/soc/codecs/hdac_hdmi.c @@ -415,7 +415,7 @@ static int hdac_hdmi_parse_and_map_nid(struct hdac_ext_device *edev) int cvt_nid = 0, pin_nid = 0;

num_nodes = snd_hdac_get_sub_nodes(hdac, hdac->afg, &nid); - if (!nid || num_nodes < 0) { + if (!nid || num_nodes <= 0) { dev_warn(&hdac->dev, "HDMI: failed to get afg sub nodes\n"); return -EINVAL; }