[alsa-devel] [PATCH] hda_proc - Add output of Vref, additional pcaps, and proccaps to proc output
Tobin Davis
tdavis at dsl-only.net
Thu Jan 17 18:11:00 CET 2008
On Thu, 2008-01-17 at 17:58 +0100, Takashi Iwai wrote:
> At Thu, 17 Jan 2008 09:46:06 -0400,
> Andrew Paprocki wrote:
> >
> > This adds additional pincaps which were not previously output. Also, Vref
> > capabilities are output per-pin along with the current Vref pinctl setting
> > if the NID supports Vref. Also added: processing widgets and proccaps, as
> > well as processing coefficient and coefficient index from the Realtek Define
> > Registers per the ALC883 datasheet.
> >
> > Signed-off-by: Andrew Paprocki <andrew at ishiboo.com>
>
> Did you check whether this doesn't break Claudio's codecgraph parser?
> If it's OK, I'd like to apply it, of course...
>
>
> Takashi
You're kidding, right? Adding more details about a codec is more useful
at this point than making sure a non-essential script (that can be
easily modified) isn't broken.
What I want to know is if we can add even more to /proc, like EAPD
status (not just capabilities), jack sense, etc. These are useful bits
of information, not only for driver development, but also could be
useful for userspace tools that can monitor these. Imagine having your
system auto adjust from 5.1 surround settings to optimal headphone
settings (not just automute) when you plug in your headphones.
Tobin
>
> > diff -r 1e5c4ccf093c -r 8a9218bae32f pci/hda/hda_proc.c
> > --- a/pci/hda/hda_proc.c Sun Jan 13 12:03:53 2008 +0100
> > +++ b/pci/hda/hda_proc.c Thu Jan 17 09:44:07 2008 -0500
> > @@ -202,7 +202,8 @@ static const char *get_jack_color(u32 cf
> > }
> >
> > static void print_pin_caps(struct snd_info_buffer *buffer,
> > - struct hda_codec *codec, hda_nid_t nid)
> > + struct hda_codec *codec, hda_nid_t nid,
> > + int *supports_vref)
> > {
> > static char *jack_conns[4] = { "Jack", "N/A", "Fixed", "Both" };
> > static char *jack_types[16] = {
> > @@ -226,7 +227,35 @@ static void print_pin_caps(struct snd_in
> > snd_iprintf(buffer, " EAPD");
> > if (caps & AC_PINCAP_PRES_DETECT)
> > snd_iprintf(buffer, " Detect");
> > - snd_iprintf(buffer, "\n");
> > + if (caps & AC_PINCAP_BALANCE)
> > + snd_iprintf(buffer, " Balanced");
> > + if (caps & AC_PINCAP_LR_SWAP)
> > + snd_iprintf(buffer, " R/L");
> > + if (caps & AC_PINCAP_TRIG_REQ)
> > + snd_iprintf(buffer, " Trigger");
> > + if (caps & AC_PINCAP_IMP_SENSE)
> > + snd_iprintf(buffer, " ImpSense");
> > + snd_iprintf(buffer, "\n");
> > + if (caps & AC_PINCAP_VREF) {
> > + unsigned int vref =
> > + (caps & AC_PINCAP_VREF) >> AC_PINCAP_VREF_SHIFT;
> > + snd_iprintf(buffer, " Vref:");
> > + if (vref & AC_PINCAP_VREF_HIZ)
> > + snd_iprintf(buffer, " HIZ");
> > + if (vref & AC_PINCAP_VREF_50)
> > + snd_iprintf(buffer, " 50");
> > + if (vref & AC_PINCAP_VREF_GRD)
> > + snd_iprintf(buffer, " GRD");
> > + if (vref & AC_PINCAP_VREF_80)
> > + snd_iprintf(buffer, " 80");
> > + if (vref & AC_PINCAP_VREF_100)
> > + snd_iprintf(buffer, " 100");
> > + snd_iprintf(buffer, "\n");
> > + *supports_vref = 1;
> > + }
> > + else {
> > + *supports_vref = 0;
> > + }
> > caps = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONFIG_DEFAULT, 0);
> > snd_iprintf(buffer, " Pin Default 0x%08x: [%s] %s at %s %s\n", caps,
> > jack_conns[(caps & AC_DEFCFG_PORT_CONN) >> AC_DEFCFG_PORT_CONN_SHIFT],
> > @@ -330,8 +359,9 @@ static void print_codec_info(struct snd_
> > }
> >
> > switch (wid_type) {
> > - case AC_WID_PIN:
> > - print_pin_caps(buffer, codec, nid);
> > + case AC_WID_PIN: {
> > + int supports_vref;
> > + print_pin_caps(buffer, codec, nid, &supports_vref);
> > pinctls = snd_hda_codec_read(codec, nid, 0,
> > AC_VERB_GET_PIN_WIDGET_CONTROL,
> > 0);
> > @@ -342,8 +372,29 @@ static void print_codec_info(struct snd_
> > snd_iprintf(buffer, " OUT");
> > if (pinctls & AC_PINCTL_HP_EN)
> > snd_iprintf(buffer, " HP");
> > + if (supports_vref) {
> > + int vref = pinctls & AC_PINCTL_VREFEN;
> > + switch (vref) {
> > + case AC_PINCTL_VREF_HIZ:
> > + snd_iprintf(buffer, " VREF_HIZ");
> > + break;
> > + case AC_PINCTL_VREF_50:
> > + snd_iprintf(buffer, " VREF_50");
> > + break;
> > + case AC_PINCTL_VREF_GRD:
> > + snd_iprintf(buffer, " VREF_GRD");
> > + break;
> > + case AC_PINCTL_VREF_80:
> > + snd_iprintf(buffer, " VREF_80");
> > + break;
> > + case AC_PINCTL_VREF_100:
> > + snd_iprintf(buffer, " VREF_100");
> > + break;
> > + }
> > + }
> > snd_iprintf(buffer, "\n");
> > break;
> > + }
> > case AC_WID_VOL_KNB:
> > pinctls = snd_hda_param_read(codec, nid,
> > AC_PAR_VOL_KNB_CAP);
> > @@ -386,6 +437,31 @@ static void print_codec_info(struct snd_
> > snd_iprintf(buffer, "\n");
> > }
> > }
> > +
> > + if (wid_caps & AC_WCAP_PROC_WID) {
> > + unsigned int proc_caps =
> > + snd_hda_param_read(codec, nid,
> > + AC_PAR_PROC_CAP);
> > + snd_iprintf(buffer,
> > + " Processing Caps: benign=%d ncoeff=%d\n",
> > + proc_caps & AC_PCAP_BENIGN,
> > + (proc_caps & AC_PCAP_NUM_COEF) >>
> > + AC_PCAP_NUM_COEF_SHIFT);
> > + }
> > +
> > + /* NID 0x20 == Realtek Define Registers */
> > + if (codec->vendor_id == 0x10ec && nid == 0x20) {
> > + int coeff =
> > + snd_hda_codec_read(codec, nid, 0,
> > + AC_VERB_GET_PROC_COEF, 0);
> > + snd_iprintf(buffer,
> > + " Processing Coefficient: 0x%02x\n",
> > + coeff);
> > + coeff = snd_hda_codec_read(codec, nid, 0,
> > + AC_VERB_GET_COEF_INDEX, 0);
> > + snd_iprintf(buffer,
> > + " Coefficient Index: 0x%02x\n", coeff);
> > + }
> > }
> > snd_hda_power_down(codec);
> > }
> >
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--
Tobin Davis
If they're just accessories, how come we want them so badly?
-- Murphy's Law of Accessories
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