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ALSA: hda - Add the pin / port mapping on Intel ILK and VLV

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Intel IronLake and ValleyView platforms have different HDMI widget pin
and digital port mapping from other newer ones.  The recent ones
(HSW+) have NID 0x05 to 0x07 for port B to port D, while these chips
have NID 0x04 to 0x06.

For adapting this mapping, pass the codec object instead of the bus
object to snd_hdac_sync_audio_rate() and snd_hdac_acomp_get_eld() so
that they can check the codec ID and calculate the mapping properly.

The changes in the HDMI codec driver side will follow in the later
patch.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2016-03-21 14:41:58 +01:00
parent e85015a379
commit d745f5e7b8
3 changed files with 41 additions and 18 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
include/sound/hda_i915.h
View file

@ -10,8 +10,8 @@
int snd_hdac_set_codec_wakeup(struct hdac_bus *bus, bool enable);
int snd_hdac_display_power(struct hdac_bus *bus, bool enable);
int snd_hdac_get_display_clk(struct hdac_bus *bus);
int snd_hdac_sync_audio_rate(struct hdac_bus *bus, hda_nid_t nid, int rate);
int snd_hdac_acomp_get_eld(struct hdac_bus *bus, hda_nid_t nid,
int snd_hdac_sync_audio_rate(struct hdac_device *codec, hda_nid_t nid, int rate);
int snd_hdac_acomp_get_eld(struct hdac_device *codec, hda_nid_t nid,
bool *audio_enabled, char *buffer, int max_bytes);
int snd_hdac_i915_init(struct hdac_bus *bus);
int snd_hdac_i915_exit(struct hdac_bus *bus);
@ -29,12 +29,12 @@ static inline int snd_hdac_get_display_clk(struct hdac_bus *bus)
{
return 0;
}
static inline int snd_hdac_sync_audio_rate(struct hdac_bus *bus, hda_nid_t nid,
int rate)
static inline int snd_hdac_sync_audio_rate(struct hdac_device *codec,
hda_nid_t nid, int rate)
{
return 0;
}
static inline int snd_hdac_acomp_get_eld(struct hdac_bus *bus, hda_nid_t nid,
static inline int snd_hdac_acomp_get_eld(struct hdac_device *codec, hda_nid_t nid,
bool *audio_enabled, char *buffer,
int max_bytes)
{

45
sound/hda/hdac_i915.c
View file

@ -118,22 +118,40 @@ int snd_hdac_get_display_clk(struct hdac_bus *bus)
}
EXPORT_SYMBOL_GPL(snd_hdac_get_display_clk);
/* There is a fixed mapping between audio pin node and display port
* on current Intel platforms:
/* There is a fixed mapping between audio pin node and display port.
* on SNB, IVY, HSW, BSW, SKL, BXT, KBL:
* Pin Widget 5 - PORT B (port = 1 in i915 driver)
* Pin Widget 6 - PORT C (port = 2 in i915 driver)
* Pin Widget 7 - PORT D (port = 3 in i915 driver)
*
* on VLV, ILK:
* Pin Widget 4 - PORT B (port = 1 in i915 driver)
* Pin Widget 5 - PORT C (port = 2 in i915 driver)
* Pin Widget 6 - PORT D (port = 3 in i915 driver)
*/
static int pin2port(hda_nid_t pin_nid)
static int pin2port(struct hdac_device *codec, hda_nid_t pin_nid)
{
if (WARN_ON(pin_nid < 5 || pin_nid > 7))
int base_nid;
switch (codec->vendor_id) {
case 0x80860054: /* ILK */
case 0x80862804: /* ILK */
case 0x80862882: /* VLV */
base_nid = 3;
break;
default:
base_nid = 4;
break;
}
if (WARN_ON(pin_nid <= base_nid || pin_nid > base_nid + 3))
return -1;
return pin_nid - 4;
return pin_nid - base_nid;
}
/**
* snd_hdac_sync_audio_rate - Set N/CTS based on the sample rate
* @bus: HDA core bus
* @codec: HDA codec
* @nid: the pin widget NID
* @rate: the sample rate to set
*
@ -143,14 +161,15 @@ static int pin2port(hda_nid_t pin_nid)
* This function sets N/CTS value based on the given sample rate.
* Returns zero for success, or a negative error code.
*/
int snd_hdac_sync_audio_rate(struct hdac_bus *bus, hda_nid_t nid, int rate)
int snd_hdac_sync_audio_rate(struct hdac_device *codec, hda_nid_t nid, int rate)
{
struct hdac_bus *bus = codec->bus;
struct i915_audio_component *acomp = bus->audio_component;
int port;
if (!acomp || !acomp->ops || !acomp->ops->sync_audio_rate)
return -ENODEV;
port = pin2port(nid);
port = pin2port(codec, nid);
if (port < 0)
return -EINVAL;
return acomp->ops->sync_audio_rate(acomp->dev, port, rate);
@ -159,7 +178,7 @@ EXPORT_SYMBOL_GPL(snd_hdac_sync_audio_rate);
/**
* snd_hdac_acomp_get_eld - Get the audio state and ELD via component
* @bus: HDA core bus
* @codec: HDA codec
* @nid: the pin widget NID
* @audio_enabled: the pointer to store the current audio state
* @buffer: the buffer pointer to store ELD bytes
@ -177,16 +196,17 @@ EXPORT_SYMBOL_GPL(snd_hdac_sync_audio_rate);
* thus it may be over @max_bytes. If it's over @max_bytes, it implies
* that only a part of ELD bytes have been fetched.
*/
int snd_hdac_acomp_get_eld(struct hdac_bus *bus, hda_nid_t nid,
int snd_hdac_acomp_get_eld(struct hdac_device *codec, hda_nid_t nid,
bool *audio_enabled, char *buffer, int max_bytes)
{
struct hdac_bus *bus = codec->bus;
struct i915_audio_component *acomp = bus->audio_component;
int port;
if (!acomp || !acomp->ops || !acomp->ops->get_eld)
return -ENODEV;
port = pin2port(nid);
port = pin2port(codec, nid);
if (port < 0)
return -EINVAL;
return acomp->ops->get_eld(acomp->dev, port, audio_enabled,
@ -286,6 +306,9 @@ int snd_hdac_i915_init(struct hdac_bus *bus)
struct i915_audio_component *acomp;
int ret;
if (WARN_ON(hdac_acomp))
return -EBUSY;
acomp = kzalloc(sizeof(*acomp), GFP_KERNEL);
if (!acomp)
return -ENOMEM;

4
sound/pci/hda/patch_hdmi.c
View file

@ -1486,7 +1486,7 @@ static void sync_eld_via_acomp(struct hda_codec *codec,
mutex_lock(&per_pin->lock);
eld->monitor_present = false;
size = snd_hdac_acomp_get_eld(&codec->bus->core, per_pin->pin_nid,
size = snd_hdac_acomp_get_eld(&codec->core, per_pin->pin_nid,
&eld->monitor_present, eld->eld_buffer,
ELD_MAX_SIZE);
if (size > 0) {
@ -1740,7 +1740,7 @@ static int generic_hdmi_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
/* Call sync_audio_rate to set the N/CTS/M manually if necessary */
/* Todo: add DP1.2 MST audio support later */
if (codec_has_acomp(codec))
snd_hdac_sync_audio_rate(&codec->bus->core, pin_nid, runtime->rate);
snd_hdac_sync_audio_rate(&codec->core, pin_nid, runtime->rate);
non_pcm = check_non_pcm_per_cvt(codec, cvt_nid);
mutex_lock(&per_pin->lock);