[alsa-devel] [PATCH v4 00/14] ASoC: hdac_hdmi: Add DP & notification support
This patch series adds DP audio and hotplug notification support.
On Skylake two DP ports are available and to enable DP on both ports all pins need to be enabled.
There is a special vendor widget which need to be programmed to enable all pins and converters. This series adds hotplug notification, read/set constraint based on ELD, enable all pin/cvts, DP1.2, programs the audio infoframe for DP. There is a one to one mapping between converter and stream, so the dais are created based on the no of streams supported on hdmi codec. Even though cvts can be mapped dynamically to the streams, currently it is statically mapped as simultaneous playback on both DP and HDMI is not supported as of now.
Pin muxes and controls are created dynamically to map converter to pin widget. So at run time specific pin is mapped to the dai based on the control selected (based on the display type DP/HDMI connected).
Finally the DP audio infoframe programming is added to support the DP feature.
Also with hotplug notification support, ELD is read and capabilities are set for rate, formats and channels. drm_eld sound/core framework is updated to limit the formats based on ELD.
There are few fixes one fixing the static checker warning and other one not to fail if no connection list is found for a pin widget.
Pls note, the 10th patch is adding a small macro for getting connection type in drm header, we have CCed drm folks on that and this one. Pls ack so that we can have this series merged thru sound trees
changes in v4: - Added NULL check - Dropped the Jack reporting patch for now.
Jeeja KP (2): ASoC: hdac_hdmi: Add codec suspend/resume handler ASoC: hdac_hdmi: Fix to enable device configuration in hw_params
Ramesh Babu (1): ASoC: hdac_hdmi: Fix to keep display active while enumerating codec
Subhransu S. Prusty (11): ASoC: hdac_hdmi: Fix to check num nodes correctly ASoC: hdac_hdmi: Fix to warn instead of err for no connected nids ASoC: hdac_hdmi: Use list to add pins and converters ASoC: hdac_hdmi: Add hotplug notification and read eld ASoC: hdac_hdmi: Apply constraints based on ELD ASoC: hdac_hdmi: Enable DP1.2 and all converters/pins ASoC: hdac_hdmi: create dais based on number of streams ASoC: hdac_hdmi: Create widget/route based on nodes enumerated ASoC: hdac_hdmi: Assign pin for stream based on dapm connection drm/edid: Add API to help find connection type ASoC: hdac_hdmi: Add infoframe support for dp audio
include/drm/drm_edid.h | 12 + sound/soc/codecs/Kconfig | 1 + sound/soc/codecs/hdac_hdmi.c | 1113 +++++++++++++++++++++++++++++++++++------- 3 files changed, 948 insertions(+), 178 deletions(-)
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 --- 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 1a2f33b..929f27b 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; }
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; }
Future platforms may have a different set of pins/converters. So use lists to add pins and converters based on enumeration.
Also it may be required to connect any converter to any pin dynamically as per different use cases (for example DP is connected to pin 6 on skylake board). So this will help in dynamically select and route.
Fix the dai map as well to use the pin/cvt from list. Not enabling all dai maps for now.
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 | 154 +++++++++++++++++++++++++++++-------------- 1 file changed, 106 insertions(+), 48 deletions(-)
diff --git a/sound/soc/codecs/hdac_hdmi.c b/sound/soc/codecs/hdac_hdmi.c index 429fa14..b206d5e 100644 --- a/sound/soc/codecs/hdac_hdmi.c +++ b/sound/soc/codecs/hdac_hdmi.c @@ -43,11 +43,13 @@ struct hdac_hdmi_cvt_params { };
struct hdac_hdmi_cvt { + struct list_head head; hda_nid_t nid; struct hdac_hdmi_cvt_params params; };
struct hdac_hdmi_pin { + struct list_head head; hda_nid_t nid; int num_mux_nids; hda_nid_t mux_nids[HDA_MAX_CONNECTIONS]; @@ -55,14 +57,16 @@ struct hdac_hdmi_pin {
struct hdac_hdmi_dai_pin_map { int dai_id; - struct hdac_hdmi_pin pin; - struct hdac_hdmi_cvt cvt; + struct hdac_hdmi_pin *pin; + struct hdac_hdmi_cvt *cvt; };
struct hdac_hdmi_priv { - hda_nid_t pin_nid[3]; - hda_nid_t cvt_nid[3]; struct hdac_hdmi_dai_pin_map dai_map[3]; + struct list_head pin_list; + struct list_head cvt_list; + int num_pin; + int num_cvt; };
static inline struct hdac_ext_device *to_hda_ext_device(struct device *dev) @@ -149,13 +153,15 @@ 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, + 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, + 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); }
@@ -179,13 +185,13 @@ static int hdac_hdmi_playback_prepare(struct snd_pcm_substream *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); + 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); + 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, @@ -221,9 +227,9 @@ static int hdac_hdmi_playback_cleanup(struct snd_pcm_substream *substream,
dai_map = &hdmi->dai_map[dai->id];
- snd_hdac_codec_write(&edev->hdac, dai_map->cvt.nid, 0, + snd_hdac_codec_write(&edev->hdac, dai_map->cvt->nid, 0, AC_VERB_SET_CHANNEL_STREAMID, 0); - snd_hdac_codec_write(&edev->hdac, dai_map->cvt.nid, 0, + snd_hdac_codec_write(&edev->hdac, dai_map->cvt->nid, 0, AC_VERB_SET_STREAM_FORMAT, 0);
dd = (struct hdac_ext_dma_params *)snd_soc_dai_get_dma_data(dai, substream); @@ -249,7 +255,7 @@ 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, + 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);
@@ -260,7 +266,7 @@ static int hdac_hdmi_pcm_open(struct snd_pcm_substream *substream,
hdac_hdmi_set_power_state(hdac, dai_map, AC_PWRST_D0);
- snd_hdac_codec_write(&hdac->hdac, dai_map->pin.nid, 0, + snd_hdac_codec_write(&hdac->hdac, dai_map->pin->nid, 0, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE);
snd_pcm_hw_constraint_step(substream->runtime, 0, @@ -280,7 +286,7 @@ static void hdac_hdmi_pcm_close(struct snd_pcm_substream *substream,
hdac_hdmi_set_power_state(hdac, dai_map, AC_PWRST_D3);
- snd_hdac_codec_write(&hdac->hdac, dai_map->pin.nid, 0, + snd_hdac_codec_write(&hdac->hdac, dai_map->pin->nid, 0, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE); }
@@ -368,40 +374,79 @@ static void create_fill_widget_route_map(struct snd_soc_dapm_context *dapm, snd_soc_dapm_add_routes(dapm, route, ARRAY_SIZE(route)); }
-static int hdac_hdmi_init_dai_map(struct hdac_ext_device *edev, - struct hdac_hdmi_dai_pin_map *dai_map, - hda_nid_t pin_nid, hda_nid_t cvt_nid, int dai_id) +static int hdac_hdmi_init_dai_map(struct hdac_ext_device *edev) { - int ret; + struct hdac_hdmi_priv *hdmi = edev->private_data; + struct hdac_hdmi_dai_pin_map *dai_map = &hdmi->dai_map[0]; + struct hdac_hdmi_cvt *cvt; + struct hdac_hdmi_pin *pin;
- dai_map->dai_id = dai_id; - dai_map->pin.nid = pin_nid; + if (list_empty(&hdmi->cvt_list) || list_empty(&hdmi->pin_list)) + return -EINVAL;
- ret = hdac_hdmi_query_pin_connlist(edev, &dai_map->pin); - if (ret < 0) { - dev_err(&edev->hdac.dev, - "Error querying connection list: %d\n", ret); - return ret; - } + /* + * 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); + + dai_map->dai_id = 0; + dai_map->pin = pin;
- dai_map->cvt.nid = cvt_nid; + dai_map->cvt = cvt;
/* Enable out path for this pin widget */ - snd_hdac_codec_write(&edev->hdac, pin_nid, 0, + snd_hdac_codec_write(&edev->hdac, pin->nid, 0, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT);
/* Enable transmission */ - snd_hdac_codec_write(&edev->hdac, cvt_nid, 0, + snd_hdac_codec_write(&edev->hdac, cvt->nid, 0, AC_VERB_SET_DIGI_CONVERT_1, 1);
/* Category Code (CC) to zero */ - snd_hdac_codec_write(&edev->hdac, cvt_nid, 0, + snd_hdac_codec_write(&edev->hdac, cvt->nid, 0, AC_VERB_SET_DIGI_CONVERT_2, 0);
- snd_hdac_codec_write(&edev->hdac, pin_nid, 0, + snd_hdac_codec_write(&edev->hdac, pin->nid, 0, AC_VERB_SET_CONNECT_SEL, 0);
- return hdac_hdmi_query_cvt_params(&edev->hdac, &dai_map->cvt); + 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; + + cvt = kzalloc(sizeof(*cvt), GFP_KERNEL); + if (!cvt) + return -ENOMEM; + + cvt->nid = nid; + + list_add_tail(&cvt->head, &hdmi->cvt_list); + hdmi->num_cvt++; + + return hdac_hdmi_query_cvt_params(&edev->hdac, cvt); +} + +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++; + + return 0; }
/* @@ -414,7 +459,7 @@ static int hdac_hdmi_parse_and_map_nid(struct hdac_ext_device *edev) int i, num_nodes; struct hdac_device *hdac = &edev->hdac; struct hdac_hdmi_priv *hdmi = edev->private_data; - int cvt_nid = 0, pin_nid = 0; + int ret;
num_nodes = snd_hdac_get_sub_nodes(hdac, hdac->afg, &nid); if (!nid || num_nodes <= 0) { @@ -438,29 +483,25 @@ static int hdac_hdmi_parse_and_map_nid(struct hdac_ext_device *edev) switch (type) {
case AC_WID_AUD_OUT: - hdmi->cvt_nid[cvt_nid] = nid; - cvt_nid++; + ret = hdac_hdmi_add_cvt(edev, nid); + if (ret < 0) + return ret; break;
case AC_WID_PIN: - hdmi->pin_nid[pin_nid] = nid; - pin_nid++; + ret = hdac_hdmi_add_pin(edev, nid); + if (ret < 0) + return ret; break; } }
hdac->end_nid = nid;
- if (!pin_nid || !cvt_nid) + if (!hdmi->num_pin || !hdmi->num_cvt) return -EIO;
- /* - * 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 - */ - return hdac_hdmi_init_dai_map(edev, &hdmi->dai_map[0], hdmi->pin_nid[0], - hdmi->cvt_nid[0], 0); + return hdac_hdmi_init_dai_map(edev); }
static int hdmi_codec_probe(struct snd_soc_codec *codec) @@ -544,6 +585,9 @@ static int hdac_hdmi_dev_probe(struct hdac_ext_device *edev)
dev_set_drvdata(&codec->dev, 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) return ret; @@ -555,8 +599,22 @@ static int hdac_hdmi_dev_probe(struct hdac_ext_device *edev)
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; + snd_soc_unregister_codec(&edev->hdac.dev);
+ list_for_each_entry_safe(cvt, cvt_next, &hdmi->cvt_list, head) { + list_del(&cvt->head); + kfree(cvt); + } + + list_for_each_entry_safe(pin, pin_next, &hdmi->pin_list, head) { + list_del(&pin->head); + kfree(pin); + } + return 0; }
On Wed, Dec 09, 2015 at 09:46:10PM +0530, Subhransu S. Prusty wrote:
Future platforms may have a different set of pins/converters. So use lists to add pins and converters based on enumeration.
Also it may be required to connect any converter to any pin dynamically as per different use cases (for example DP is connected to pin 6 on skylake board). So this will help in dynamically select and route.
This sounds like it's supposed to be supporting multiple outputs but...
- /*
* 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);
...it looks like we still only support one random pin and one random convertor? How do we know if we got the right ones? I *think* this mostly ends up doing the same thing as the previous version but if that's the case why are we doing it?
As I've said before one of the reasons it sometimes takes a long time to review these things is that there's a lot of big patch serieses getting sent which aren't that well explained.
- snd_hdac_codec_write(&edev->hdac, pin_nid, 0,
- snd_hdac_codec_write(&edev->hdac, pin->nid, 0,
Huge portions of this patch are a simple refactoring like this, it'd be good to have split those out as a separate patch so the actual content is more visible.
On Fri, Jan 08, 2016 at 01:32:51PM +0000, Mark Brown wrote:
On Wed, Dec 09, 2015 at 09:46:10PM +0530, Subhransu S. Prusty wrote:
Future platforms may have a different set of pins/converters. So use lists to add pins and converters based on enumeration.
Also it may be required to connect any converter to any pin dynamically as per different use cases (for example DP is connected to pin 6 on skylake board). So this will help in dynamically select and route.
This sounds like it's supposed to be supporting multiple outputs but...
- /*
* 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);
...it looks like we still only support one random pin and one random convertor? How do we know if we got the right ones? I *think* this mostly ends up doing the same thing as the previous version but if that's the case why are we doing it?
Hi Mark,
This is the start of conversion to have multiple outputs supported. This patch only converts to use list so that multiple pins can be used
Actual code to add support for three skl pins is in this series as explained in the cover letter
As I've said before one of the reasons it sometimes takes a long time to review these things is that there's a lot of big patch serieses getting sent which aren't that well explained.
- snd_hdac_codec_write(&edev->hdac, pin_nid, 0,
- snd_hdac_codec_write(&edev->hdac, pin->nid, 0,
Huge portions of this patch are a simple refactoring like this, it'd be good to have split those out as a separate patch so the actual content is more visible.
Yes this patch is only refactoring to use list for pins
Thanks
On Fri, Jan 08, 2016 at 07:24:46PM +0530, Vinod Koul wrote:
On Fri, Jan 08, 2016 at 01:32:51PM +0000, Mark Brown wrote:
On Wed, Dec 09, 2015 at 09:46:10PM +0530, Subhransu S. Prusty wrote:
Also it may be required to connect any converter to any pin dynamically as per different use cases (for example DP is connected to pin 6 on skylake board). So this will help in dynamically select and route.
This sounds like it's supposed to be supporting multiple outputs but...
....
...it looks like we still only support one random pin and one random convertor? How do we know if we got the right ones? I *think* this mostly ends up doing the same thing as the previous version but if that's the case why are we doing it?
This is the start of conversion to have multiple outputs supported. This patch only converts to use list so that multiple pins can be used
Actual code to add support for three skl pins is in this series as explained in the cover letter
This is the sort of thing that needs to be in the patch changelogs. I know that at some point we want to get to having multiple outputs but right now I'm reviewing this individual patch and I need to be able to tell if it does what it's supposed to be doing. Please do work on the quality of your changelogs, as I keep saying difficulty in following what the code is supposed to be doing is a constant problem with the Skylake patches.
As I've said before one of the reasons it sometimes takes a long time to review these things is that there's a lot of big patch serieses getting sent which aren't that well explained.
- snd_hdac_codec_write(&edev->hdac, pin_nid, 0,
- snd_hdac_codec_write(&edev->hdac, pin->nid, 0,
Huge portions of this patch are a simple refactoring like this, it'd be good to have split those out as a separate patch so the actual content is more visible.
Yes this patch is only refactoring to use list for pins
It looks like there's some other stuff going on too. The changelog certainly seems to suggest there is.
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, 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 | 216 +++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 209 insertions(+), 7 deletions(-)
diff --git a/sound/soc/codecs/hdac_hdmi.c b/sound/soc/codecs/hdac_hdmi.c index b206d5e..016aa24 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 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_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 + */ +static 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 +519,70 @@ 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 +597,9 @@ 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 +658,64 @@ 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_present_sense(pin, 1); + /* Imp: Store the card pointer in hda_codec */ edev->card = dapm->card->snd_card;
@@ -659,6 +860,7 @@ 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");
On Wed, Dec 09, 2015 at 09:46:11PM +0530, Subhransu S. Prusty wrote:
This patch uses i915 component framework to register for hotplug notification. And once it identifies valid pin sense and valid eld,
You say this patch uses the i915 component framework but...
- 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,
...that's a TODO according to the code?
On Fri, Jan 08, 2016 at 01:42:17PM +0000, Mark Brown wrote:
On Wed, Dec 09, 2015 at 09:46:11PM +0530, Subhransu S. Prusty wrote:
This patch uses i915 component framework to register for hotplug notification. And once it identifies valid pin sense and valid eld,
You say this patch uses the i915 component framework but...
- 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,...that's a TODO according to the code?
ah sorry, Shubranshu meant use i915 eld presence fwk when available. Takashi was working on it so we will convert this to use shiny new framework a bit later :)
On Fri, 08 Jan 2016 14:59:50 +0100, Vinod Koul wrote:
On Fri, Jan 08, 2016 at 01:42:17PM +0000, Mark Brown wrote:
On Wed, Dec 09, 2015 at 09:46:11PM +0530, Subhransu S. Prusty wrote:
This patch uses i915 component framework to register for hotplug notification. And once it identifies valid pin sense and valid eld,
You say this patch uses the i915 component framework but...
- 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,...that's a TODO according to the code?
ah sorry, Shubranshu meant use i915 eld presence fwk when available. Takashi was working on it so we will convert this to use shiny new framework a bit later :)
FYI, the framework has been already merged to for-next branch.
Takashi
On Fri, Jan 08, 2016 at 02:57:10PM +0100, Takashi Iwai wrote:
On Fri, 08 Jan 2016 14:59:50 +0100, Vinod Koul wrote:
On Fri, Jan 08, 2016 at 01:42:17PM +0000, Mark Brown wrote:
On Wed, Dec 09, 2015 at 09:46:11PM +0530, Subhransu S. Prusty wrote:
This patch uses i915 component framework to register for hotplug notification. And once it identifies valid pin sense and valid eld,
You say this patch uses the i915 component framework but...
- 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,...that's a TODO according to the code?
ah sorry, Shubranshu meant use i915 eld presence fwk when available. Takashi was working on it so we will convert this to use shiny new framework a bit later :)
FYI, the framework has been already merged to for-next branch.
Thanks for update, Yes this is next task for Shubranshu to do this and multichannel support
Uses the drm eld core framework to apply rate and channel
Also compute the format to be set based on ELD.
Even though the channel constraint is based on ELD, infoframe is set with stereo only. Multichannel support will be added later.
Signed-off-by: Subhransu S. Prusty subhransu.s.prusty@intel.com Signed-off-by: Vinod Koul vinod.koul@intel.com --- sound/soc/codecs/Kconfig | 1 + sound/soc/codecs/hdac_hdmi.c | 48 +++++++++++++++++++++++++++++++++++++++++--- 2 files changed, 46 insertions(+), 3 deletions(-)
diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index c0c5c8e..f805cb6 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -486,6 +486,7 @@ config SND_SOC_GTM601 config SND_SOC_HDAC_HDMI tristate select SND_HDA_EXT_CORE + select SND_PCM_ELD select HDMI
config SND_SOC_ICS43432 diff --git a/sound/soc/codecs/hdac_hdmi.c b/sound/soc/codecs/hdac_hdmi.c index 016aa24..3e2a12e 100644 --- a/sound/soc/codecs/hdac_hdmi.c +++ b/sound/soc/codecs/hdac_hdmi.c @@ -22,10 +22,12 @@ #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> #include <sound/hda_i915.h> +#include <sound/pcm_drm_eld.h> #include "../../hda/local.h"
#define AMP_OUT_MUTE 0xb080 @@ -90,6 +92,42 @@ static inline struct hdac_ext_device *to_hda_ext_device(struct device *dev) return container_of(hdac, struct hdac_ext_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 */ + + /* 20 bit and 24 bit */ + 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) @@ -335,6 +373,7 @@ 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 ret;
if (dai->id > 0) { dev_err(&hdac->hdac.dev, "Only one dai supported as of now\n"); @@ -356,10 +395,13 @@ static int hdac_hdmi_pcm_open(struct snd_pcm_substream *substream, snd_hdac_codec_write(&hdac->hdac, dai_map->pin->nid, 0, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE);
- snd_pcm_hw_constraint_step(substream->runtime, 0, - SNDRV_PCM_HW_PARAM_CHANNELS, 2); + ret = hdac_hdmi_eld_limit_formats(substream->runtime, + dai_map->pin->eld.eld_buffer); + if (ret < 0) + return ret;
- return 0; + return snd_pcm_hw_constraint_eld(substream->runtime, + dai_map->pin->eld.eld_buffer); }
static void hdac_hdmi_pcm_close(struct snd_pcm_substream *substream,
On Wed, Dec 09, 2015 at 09:46:12PM +0530, Subhransu S. Prusty wrote:
+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 */
switch (sad_format(sad)) { case AUDIO_CODING_TYPE_LPCM:
/* 20 bit and 24 bit */if (sad_sample_bits_lpcm(sad) & 0x6)formats |= SNDRV_PCM_FMTBIT_S32;}- }
I really don't have a clear idea what the above is supposed to do or why this is specific to HDAC and not handled...
- return 0;
- return snd_pcm_hw_constraint_eld(substream->runtime,
dai_map->pin->eld.eld_buffer);
...here.
On Fri, 08 Jan 2016 15:09:33 +0100, Mark Brown wrote:
On Wed, Dec 09, 2015 at 09:46:12PM +0530, Subhransu S. Prusty wrote:
+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 */switch (sad_format(sad)) { case AUDIO_CODING_TYPE_LPCM:
/* 20 bit and 24 bit */if (sad_sample_bits_lpcm(sad) & 0x6)formats |= SNDRV_PCM_FMTBIT_S32;}- }
I really don't have a clear idea what the above is supposed to do or why this is specific to HDAC and not handled...
- return 0;
- return snd_pcm_hw_constraint_eld(substream->runtime,
dai_map->pin->eld.eld_buffer);...here.
The PCM format cannot be determined uniquely as it depends on the container type and endianness. So this can't be implemented in a generic helper.
Takashi
On Fri, Jan 08, 2016 at 03:48:03PM +0100, Takashi Iwai wrote:
On Fri, 08 Jan 2016 15:09:33 +0100, Mark Brown wrote:
On Wed, Dec 09, 2015 at 09:46:12PM +0530, Subhransu S. Prusty wrote:
+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 */switch (sad_format(sad)) { case AUDIO_CODING_TYPE_LPCM:
/* 20 bit and 24 bit */if (sad_sample_bits_lpcm(sad) & 0x6)formats |= SNDRV_PCM_FMTBIT_S32;}- }
I really don't have a clear idea what the above is supposed to do or why this is specific to HDAC and not handled...
- return 0;
- return snd_pcm_hw_constraint_eld(substream->runtime,
dai_map->pin->eld.eld_buffer);...here.
The PCM format cannot be determined uniquely as it depends on the container type and endianness. So this can't be implemented in a generic helper.
Hi Mark,
Initially we did start out by adding these in common code (v1) and per Takashi's feedback we moved this back to driver.
Please let us know if you are fine with approach
Thanks
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 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 3e2a12e..3e8b745 100644 --- a/sound/soc/codecs/hdac_hdmi.c +++ b/sound/soc/codecs/hdac_hdmi.c @@ -645,6 +645,46 @@ 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 @@ -657,6 +697,9 @@ 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 | 113 +++++++++++++++++++++++++++++++------------ 1 file changed, 81 insertions(+), 32 deletions(-)
diff --git a/sound/soc/codecs/hdac_hdmi.c b/sound/soc/codecs/hdac_hdmi.c index 3e8b745..2c65e63 100644 --- a/sound/soc/codecs/hdac_hdmi.c +++ b/sound/soc/codecs/hdac_hdmi.c @@ -30,6 +30,8 @@ #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) @@ -685,11 +687,72 @@ 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; + 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; + + 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; @@ -740,6 +803,15 @@ 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); }
@@ -829,38 +901,12 @@ 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); @@ -874,13 +920,16 @@ 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 | 240 +++++++++++++++++++++++++++++++++++++++---- 1 file changed, 218 insertions(+), 22 deletions(-)
diff --git a/sound/soc/codecs/hdac_hdmi.c b/sound/soc/codecs/hdac_hdmi.c index 2c65e63..507148c 100644 --- a/sound/soc/codecs/hdac_hdmi.c +++ b/sound/soc/codecs/hdac_hdmi.c @@ -463,46 +463,240 @@ 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 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 = wname; + 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 = NULL; - w->num_kcontrols = 0; - w->priv = NULL; + 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) + 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); + 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 = snd_soc_dapm_put_enum_double; + 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;
- memset(&route, 0, sizeof(route)); + 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; + }
- 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"); + se->texts = devm_kmemdup(&edev->hdac.dev, items, + (num_items * sizeof(char *)), GFP_KERNEL); + if (!se->texts) + return -ENOMEM;
- hdac_hdmi_fill_route(&route[0], "hif1 Output", NULL, "Coverter 1"); + return hdac_hdmi_fill_widget_info(&edev->hdac.dev, widget, snd_soc_dapm_mux, + &pin->nid, 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 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); + 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;
- 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) @@ -860,7 +1054,9 @@ 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);
Now that we have all the widgets enumerated we can route the stream to any pin widget based on Mux connection. So map the pin to stream accordingly.
Also seems the connection list to the pin widgets are not static and is updated runtime based on type of display attached to the port. This looks to be a hardware behavior.
So querying of the connection list is removed from pin initialization and used in selecting the pin for a dai map.
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 | 212 +++++++++++++++++++++++++++++++------------ 1 file changed, 153 insertions(+), 59 deletions(-)
diff --git a/sound/soc/codecs/hdac_hdmi.c b/sound/soc/codecs/hdac_hdmi.c index 507148c..0aac3cb 100644 --- a/sound/soc/codecs/hdac_hdmi.c +++ b/sound/soc/codecs/hdac_hdmi.c @@ -38,6 +38,8 @@
#define HDA_MAX_CONNECTIONS 32
+#define HDA_MAX_CVTS 3 + #define ELD_MAX_SIZE 256 #define ELD_FIXED_BYTES 20
@@ -80,7 +82,7 @@ struct hdac_hdmi_dai_pin_map { };
struct hdac_hdmi_priv { - struct hdac_hdmi_dai_pin_map dai_map[3]; + struct hdac_hdmi_dai_pin_map dai_map[HDA_MAX_CVTS]; struct list_head pin_list; struct list_head cvt_list; int num_pin; @@ -369,12 +371,125 @@ static int hdac_hdmi_playback_cleanup(struct snd_pcm_substream *substream, return 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; +} + +static inline struct hdac_hdmi_pin *hdac_hdmi_get_pin( + struct hdac_ext_device *edev, + struct snd_soc_dapm_path *p, + struct hdac_hdmi_cvt *cvt) +{ + struct hdac_hdmi_priv *hdmi = edev->private_data; + struct hdac_hdmi_pin *pin; + hda_nid_t *nid; + int ret, i; + + nid = (hda_nid_t *)p->sink->priv; + list_for_each_entry(pin, &hdmi->pin_list, head) { + if (pin->nid == *nid) { + ret = hdac_hdmi_query_pin_connlist(edev, pin); + if (ret < 0) + continue; + + for (i = 0; i < pin->num_mux_nids; i++) { + if (pin->mux_nids[i] == cvt->nid) + return pin; + } + } + } + + return NULL; +} + +/* + * This queries mux widgets in each sink path of the dai widget and returns + * a matching pin widget to which the stream may be routed. + * + * The converter may be input to multiple pin muxes. So each + * pin mux (basically each pin widget) is queried to identify if + * the converter as one of the input, then the first pin match + * is selected for rendering. + * + * Same stream rendering to multiple pins simultaneously can be done + * possibly, but not supported for now. + * + * So return the first pin connected + */ +static struct hdac_hdmi_pin *hdac_hdmi_get_pin_from_daistream( + struct hdac_ext_device *edev, + struct snd_soc_dapm_widget *strm_w, + struct hdac_hdmi_cvt *cvt) +{ + struct snd_soc_dapm_path *p; + + snd_soc_dapm_widget_for_each_sink_path(strm_w, p) { + if (!p->connect) + continue; + + if (strstr(p->sink->name, "Mux")) + return hdac_hdmi_get_pin(edev, p, cvt); + else + return hdac_hdmi_get_pin_from_daistream(edev, p->sink, cvt); + } + + return NULL; +} + 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;
if (dai->id > 0) { @@ -384,26 +499,32 @@ static int hdac_hdmi_pcm_open(struct snd_pcm_substream *substream,
dai_map = &hdmi->dai_map[dai->id];
- 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); + cvt = dai_map->cvt; + pin = hdac_hdmi_get_pin_from_daistream(hdac, dai->playback_widget, cvt); + if (!pin) + return -EIO; + + if ((!pin->eld.monitor_present) || + (!pin->eld.eld_valid)) { + dev_err(&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 -ENODEV; }
- hdac_hdmi_set_power_state(hdac, dai_map, AC_PWRST_D0); + dai_map->pin = pin;
- snd_hdac_codec_write(&hdac->hdac, dai_map->pin->nid, 0, - AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE); + ret = hdac_hdmi_enable_pin(hdac, dai_map); + if (ret < 0) + return ret;
ret = hdac_hdmi_eld_limit_formats(substream->runtime, - dai_map->pin->eld.eld_buffer); + pin->eld.eld_buffer); if (ret < 0) return ret;
return snd_pcm_hw_constraint_eld(substream->runtime, - dai_map->pin->eld.eld_buffer); + pin->eld.eld_buffer); }
static void hdac_hdmi_pcm_close(struct snd_pcm_substream *substream, @@ -419,6 +540,8 @@ static void hdac_hdmi_pcm_close(struct snd_pcm_substream *substream,
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 @@ -441,28 +564,6 @@ hdac_hdmi_query_cvt_params(struct hdac_device *hdac, struct hdac_hdmi_cvt *cvt) return err; }
-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; -} - static int hdac_hdmi_fill_widget_info(struct device *dev, struct snd_soc_dapm_widget *w, enum snd_soc_dapm_type id, void *priv, @@ -702,40 +803,33 @@ static int create_fill_widget_route_map(struct snd_soc_dapm_context *dapm) 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 = &hdmi->dai_map[0]; + struct hdac_hdmi_dai_pin_map *dai_map; struct hdac_hdmi_cvt *cvt; - struct hdac_hdmi_pin *pin; + int dai_id = 0;
- if (list_empty(&hdmi->cvt_list) || list_empty(&hdmi->pin_list)) + if (list_empty(&hdmi->cvt_list)) return -EINVAL;
- /* - * 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); - - dai_map->dai_id = 0; - dai_map->pin = pin; - - dai_map->cvt = cvt; + 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;
- /* Enable out path for this pin widget */ - snd_hdac_codec_write(&edev->hdac, pin->nid, 0, - AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT); + /* Enable transmission */ + snd_hdac_codec_write(&edev->hdac, cvt->nid, 0, + AC_VERB_SET_DIGI_CONVERT_1, 1);
- /* Enable transmission */ - snd_hdac_codec_write(&edev->hdac, cvt->nid, 0, - AC_VERB_SET_DIGI_CONVERT_1, 1); + /* Category Code (CC) to zero */ + snd_hdac_codec_write(&edev->hdac, cvt->nid, 0, + AC_VERB_SET_DIGI_CONVERT_2, 0);
- /* Category Code (CC) to zero */ - snd_hdac_codec_write(&edev->hdac, cvt->nid, 0, - AC_VERB_SET_DIGI_CONVERT_2, 0); + dai_id++;
- snd_hdac_codec_write(&edev->hdac, pin->nid, 0, - AC_VERB_SET_CONNECT_SEL, 0); + if (dai_id == HDA_MAX_CVTS) { + dev_warn(&edev->hdac.dev, "Max dais supported: %d\n", dai_id); + break; + } + }
return 0; }
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 Reviewed-by: Jani Nikula jani.nikula@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..8c537a0 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),
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 | 70 +++++++++++++++++++++++++++++++++++++------- 1 file changed, 60 insertions(+), 10 deletions(-)
diff --git a/sound/soc/codecs/hdac_hdmi.c b/sound/soc/codecs/hdac_hdmi.c index 0aac3cb..15dbf67 100644 --- a/sound/soc/codecs/hdac_hdmi.c +++ b/sound/soc/codecs/hdac_hdmi.c @@ -238,27 +238,71 @@ 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; - u8 *dip = (u8 *)&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;
- 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 *)&dp_ai; + } 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); @@ -268,9 +312,15 @@ 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 == DRM_ELD_CONN_TYPE_HDMI) { + 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);
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 15dbf67..f02a9fe 100644 --- a/sound/soc/codecs/hdac_hdmi.c +++ b/sound/soc/codecs/hdac_hdmi.c @@ -1235,9 +1235,34 @@ 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, };
From: Ramesh Babu ramesh.babu@intel.com
The display power reference count is decremented with the first explicit call to pm_runtime_suspend. Otherwise the display power reference count is balanced with runtime resume/suspend. Rest of the time it is kept off.
Signed-off-by: Ramesh Babu ramesh.babu@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 | 12 ++++++++++++ 1 file changed, 12 insertions(+)
diff --git a/sound/soc/codecs/hdac_hdmi.c b/sound/soc/codecs/hdac_hdmi.c index f02a9fe..03d18fb 100644 --- a/sound/soc/codecs/hdac_hdmi.c +++ b/sound/soc/codecs/hdac_hdmi.c @@ -1285,6 +1285,18 @@ 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);
+ /* + * 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,
From: Jeeja KP jeeja.kp@intel.com
User can keep the device open and with the device configuration done in pcm_open, this may fail. Anyway hw_params is the right place for this. So moving the configuration to hw_params and free in hw_free. Remove the redundant startup/shutdown ops.
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 | 100 ++++++++++++++++++------------------------- 1 file changed, 42 insertions(+), 58 deletions(-)
diff --git a/sound/soc/codecs/hdac_hdmi.c b/sound/soc/codecs/hdac_hdmi.c index 03d18fb..cbd541a 100644 --- a/sound/soc/codecs/hdac_hdmi.c +++ b/sound/soc/codecs/hdac_hdmi.c @@ -375,52 +375,6 @@ static int hdac_hdmi_playback_prepare(struct snd_pcm_substream *substream, 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_ext_dma_params *dd; - - if (dai->id > 0) { - dev_err(&hdac->hdac.dev, "Only one dai supported as of now\n"); - return -ENODEV; - } - - 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]; - - snd_hdac_codec_write(&edev->hdac, dai_map->cvt->nid, 0, - AC_VERB_SET_CHANNEL_STREAMID, 0); - snd_hdac_codec_write(&edev->hdac, dai_map->cvt->nid, 0, - AC_VERB_SET_STREAM_FORMAT, 0); - - dd = (struct hdac_ext_dma_params *)snd_soc_dai_get_dma_data(dai, substream); - snd_soc_dai_set_dma_data(dai, substream, NULL); - - kfree(dd); - - return 0; -} - static int hdac_hdmi_enable_pin(struct hdac_ext_device *hdac, struct hdac_hdmi_dai_pin_map *dai_map) { @@ -532,8 +486,8 @@ static struct hdac_hdmi_pin *hdac_hdmi_get_pin_from_daistream( return NULL; }
-static int hdac_hdmi_pcm_open(struct snd_pcm_substream *substream, - struct snd_soc_dai *dai) +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; @@ -541,6 +495,7 @@ static int hdac_hdmi_pcm_open(struct snd_pcm_substream *substream, struct hdac_hdmi_cvt *cvt; struct hdac_hdmi_pin *pin; int ret; + struct hdac_ext_dma_params *dd;
if (dai->id > 0) { dev_err(&hdac->hdac.dev, "Only one dai supported as of now\n"); @@ -573,25 +528,56 @@ static int hdac_hdmi_pcm_open(struct snd_pcm_substream *substream, if (ret < 0) return ret;
- return snd_pcm_hw_constraint_eld(substream->runtime, - pin->eld.eld_buffer); + ret = snd_pcm_hw_constraint_eld(substream->runtime, + dai_map->pin->eld.eld_buffer); + + if (ret < 0) + return ret; + + 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 void hdac_hdmi_pcm_close(struct snd_pcm_substream *substream, +static int hdac_hdmi_playback_cleanup(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_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];
- hdac_hdmi_set_power_state(hdac, dai_map, AC_PWRST_D3); + dd = (struct hdac_ext_dma_params *)snd_soc_dai_get_dma_data(dai, substream);
- snd_hdac_codec_write(&hdac->hdac, dai_map->pin->nid, 0, + if (dd) { + snd_soc_dai_set_dma_data(dai, substream, NULL); + kfree(dd); + } + + if (dai_map->pin) { + snd_hdac_codec_write(&edev->hdac, dai_map->cvt->nid, 0, + AC_VERB_SET_CHANNEL_STREAMID, 0); + snd_hdac_codec_write(&edev->hdac, dai_map->cvt->nid, 0, + AC_VERB_SET_STREAM_FORMAT, 0); + + hdac_hdmi_set_power_state(edev, dai_map, AC_PWRST_D3); + + snd_hdac_codec_write(&edev->hdac, dai_map->pin->nid, 0, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE);
- dai_map->pin = NULL; + dai_map->pin = NULL; + } + + return 0; }
static int @@ -1026,8 +1012,6 @@ 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,
participants (4)
-
Mark Brown -
Subhransu S. Prusty -
Takashi Iwai -
Vinod Koul