[PATCH] Change alsamixer to show different views. Playback controls, or Capture controls.

[PATCH] Change alsamixer to show different views. Playback controls, or Capture controls.

[James Courtier-Dutton]

[-- Attachment #1: Type: text/plain, Size: 340 bytes --]

I attach a diff file against ./alsa-utils/alsamixer/alsamixer.c

It causes alsamixer to display 2 different views of the mixer controls.
One view shows only the "Playback" controls, the other view shows only 
the "Capture" controls, with a hidden mode (Press F1, then Enter) to 
show the old method of all controls together.

Cheers

James

[-- Attachment #2: alsamixer-separate-play-capture.txt --]
[-- Type: text/plain, Size: 9361 bytes --]

--- alsamixer.c.org	2004-08-13 12:01:34.000000000 +0100
+++ alsamixer.c	2004-08-27 13:44:29.132321190 +0100
@@ -167,6 +167,8 @@
 /* --- views --- */
 enum {
   VIEW_CHANNELS,
+  VIEW_PLAYBACK,
+  VIEW_CAPTURE,
   VIEW_HELP,
   VIEW_PROCINFO
 };
@@ -177,7 +179,7 @@
 static int	 mixer_needs_resize = 0;
 static int	 mixer_minimize = 0;
 static int	 mixer_no_lrcorner = 0;
-static int	 mixer_view = VIEW_CHANNELS;
+static int	 mixer_view = VIEW_PLAYBACK;
 static int	 mixer_max_x = 0;
 static int	 mixer_max_y = 0;
 static int	 mixer_ofs_x = 0;
@@ -227,6 +229,7 @@
 
 /* split scontrols */
 static int	 mixer_n_elems = 0;
+static int	 mixer_n_view_elems = 0;
 static int	 mixer_n_vis_elems = 0;
 static int	 mixer_first_vis_elem = 0;
 static int	 mixer_focus_elem = 0;
@@ -254,6 +257,8 @@
  " Esc     exit alsamixer\n"
  " F1      show Help screen\n"
  " F2      show /proc info screen\n"
+ " F3      show Playback controls only\n"
+ " F4      show Capture controls only\n"
  " Return  return to main screen\n"
  " Space   toggle Capture facility\n"
  " Tab     toggle ExactMode\n"
@@ -545,7 +550,7 @@
 
   if (mixer_sid == NULL)
     return;
-  
+
   sid = (snd_mixer_selem_id_t *)(((char *)mixer_sid) + snd_mixer_selem_id_sizeof() * mixer_grpidx[elem_index]);
   elem = snd_mixer_find_selem(mixer_handle, sid);
   if (elem == NULL)
@@ -758,7 +763,7 @@
       vright = vleft;
     }
   }
-  
+
   if (type == MIXER_ELEM_CAPTURE && snd_mixer_selem_has_capture_volume(elem)) {
     long vmin, vmax;
     snd_mixer_selem_get_capture_volume_range(elem, &vmin, &vmax);
@@ -779,7 +784,21 @@
     if (xlen > 63)
       xlen = 63;
     mixer_dc (DC_PROMPT);
-    mvaddstr (3, 2, "Item: ");
+    mvaddstr (3, 2, "View: ");
+    mixer_dc (DC_TEXT);
+    switch (mixer_view) {
+    case VIEW_PLAYBACK:
+      mvaddstr (3, 8, "Playback");
+      break;
+    case VIEW_CAPTURE:
+      mvaddstr (3, 8, "Capture");
+      break;
+    default:
+      mvaddstr (3, 8, "All");
+      break;
+    }
+    mixer_dc (DC_PROMPT);
+    mvaddstr (4, 2, "Item: ");
     mixer_dc (DC_TEXT);
     string1[8] = 0;
     for (i = 0; i < 63; i++)
@@ -952,7 +971,6 @@
   static int o_y = 0;
   int i, x, y;
   
-  
   if (!mixer_cbar_get_pos (mixer_focus_elem, &x, &y))
     {
       if (mixer_focus_elem < mixer_first_vis_elem)
@@ -961,15 +979,15 @@
 	mixer_first_vis_elem = mixer_focus_elem - mixer_n_vis_elems + 1;
       mixer_cbar_get_pos (mixer_focus_elem, &x, &y);
     }
-  if (mixer_first_vis_elem + mixer_n_vis_elems >= mixer_n_elems) {
-     mixer_first_vis_elem = mixer_n_elems - mixer_n_vis_elems;
+  if (mixer_first_vis_elem + mixer_n_vis_elems >= mixer_n_view_elems) {
+     mixer_first_vis_elem = mixer_n_view_elems - mixer_n_vis_elems;
      if (mixer_first_vis_elem < 0)
        mixer_first_vis_elem = 0;
      mixer_cbar_get_pos (mixer_focus_elem, &x, &y);
   }
   mixer_write_cbar(mixer_focus_elem);
   for (i = 0; i < mixer_n_vis_elems; i++) {
-    if (i + mixer_first_vis_elem >= mixer_n_elems)
+    if (i + mixer_first_vis_elem >= mixer_n_view_elems)
       continue;
     mixer_update_cbar (i + mixer_first_vis_elem);
   }
@@ -1521,53 +1539,57 @@
     elem = snd_mixer_find_selem(mixer_handle, sid);
     if (elem == NULL)
       CHECK_ABORT (ERR_FCN, "snd_mixer_find_selem()", -EINVAL);
-    for (i = 0; i < MIXER_ELEM_CAPTURE; i++) {
-      int ok;
-      for (j = ok = 0; j < 2; j++) {
-	if (mixer_changed_state)
-	  goto __again;
-	if (snd_mixer_selem_has_playback_channel(elem, mixer_elem_chn[i][j]))
-	  ok++;
+    if ( (mixer_view == VIEW_PLAYBACK) || (mixer_view == VIEW_CHANNELS) ) {
+      for (i = 0; i < MIXER_ELEM_CAPTURE; i++) {
+        int ok;
+        for (j = ok = 0; j < 2; j++) {
+	  if (mixer_changed_state)
+	    goto __again;
+ 	  if (snd_mixer_selem_has_playback_channel(elem, mixer_elem_chn[i][j]))
+	    ok++;
+        }
+        if (ok) {
+	  sid = (snd_mixer_selem_id_t *)(((char *)mixer_sid) + snd_mixer_selem_id_sizeof() * idx);
+	  mixer_grpidx[elem_index] = idx;
+	  if (snd_mixer_selem_is_enumerated(elem)) {
+	    mixer_type[elem_index] = MIXER_ELEM_ENUM;
+	  } else {
+	    mixer_type[elem_index] = i;
+	    if (i == 0 && snd_mixer_selem_has_playback_switch(elem))
+	      mixer_type[elem_index] |= MIXER_ELEM_MUTE_SWITCH;
+	    if (snd_mixer_selem_has_playback_volume(elem))
+	      mixer_type[elem_index] |= MIXER_ELEM_HAS_VOLUME;
+	  }
+	  elem_index++;
+	  nelems_added++;
+	  if (elem_index >= mixer_n_elems)
+	    break;
+        }
       }
-      if (ok) {
-	sid = (snd_mixer_selem_id_t *)(((char *)mixer_sid) + snd_mixer_selem_id_sizeof() * idx);
-	mixer_grpidx[elem_index] = idx;
-	if (snd_mixer_selem_is_enumerated(elem)) {
-	  mixer_type[elem_index] = MIXER_ELEM_ENUM;
-	} else {
-	  mixer_type[elem_index] = i;
-	  if (i == 0 && snd_mixer_selem_has_playback_switch(elem))
-	    mixer_type[elem_index] |= MIXER_ELEM_MUTE_SWITCH;
-	  if (snd_mixer_selem_has_playback_volume(elem))
-	    mixer_type[elem_index] |= MIXER_ELEM_HAS_VOLUME;
-	  if (i == 0 && snd_mixer_selem_has_capture_switch(elem))
-	    mixer_type[elem_index] |= MIXER_ELEM_CAPTURE_SWITCH;
-	}
-	elem_index++;
-	nelems_added++;
-	if (elem_index >= mixer_n_elems)
+    }
+
+    if ( (mixer_view == VIEW_CAPTURE) || (mixer_view == VIEW_CHANNELS) ) {
+      if (snd_mixer_selem_has_capture_volume(elem) ||
+	  (nelems_added == 0 && snd_mixer_selem_has_capture_switch(elem))) {
+        mixer_grpidx[elem_index] = idx;
+        mixer_type[elem_index] = MIXER_ELEM_CAPTURE;
+        if (nelems_added == 0 && snd_mixer_selem_has_capture_switch(elem))
+	  mixer_type[elem_index] |= MIXER_ELEM_CAPTURE_SWITCH;
+        if (nelems_added)
+	  mixer_type[elem_index] |= MIXER_ELEM_CAPTURE_SUFFIX;
+        if (snd_mixer_selem_has_capture_volume(elem))
+	  mixer_type[elem_index] |= MIXER_ELEM_HAS_VOLUME;
+        elem_index++;
+        if (elem_index >= mixer_n_elems)
 	  break;
       }
     }
-    if (snd_mixer_selem_has_capture_volume(elem) ||
-	(nelems_added == 0 && snd_mixer_selem_has_capture_switch(elem))) {
-      mixer_grpidx[elem_index] = idx;
-      mixer_type[elem_index] = MIXER_ELEM_CAPTURE;
-      if (nelems_added == 0 && snd_mixer_selem_has_capture_switch(elem))
-	mixer_type[elem_index] |= MIXER_ELEM_CAPTURE_SWITCH;
-      if (nelems_added)
-	mixer_type[elem_index] |= MIXER_ELEM_CAPTURE_SUFFIX;
-      if (snd_mixer_selem_has_capture_volume(elem))
-	mixer_type[elem_index] |= MIXER_ELEM_HAS_VOLUME;
-      elem_index++;
-      if (elem_index >= mixer_n_elems)
-	break;
-    }
   }
 
+  mixer_n_view_elems = elem_index;
   mixer_focus_elem = 0;
   if (focus_type >= 0) {
-    for (elem_index = 0; elem_index < mixer_n_elems; elem_index++) {
+    for (elem_index = 0; elem_index < mixer_n_view_elems; elem_index++) {
       sid = (snd_mixer_selem_id_t *)(((char *)mixer_sid) + snd_mixer_selem_id_sizeof() * mixer_grpidx[elem_index]);
       if (!strcmp(snd_mixer_selem_id_get_name(focus_gid),
                   snd_mixer_selem_id_get_name(sid)) &&
@@ -1619,7 +1641,7 @@
 
   /* required allocations */
   mixer_n_vis_elems = (mixer_max_x - mixer_ofs_x * 2 + 1) / 9;
-  mixer_n_vis_elems = CLAMP (mixer_n_vis_elems, 1, mixer_n_elems);
+  mixer_n_vis_elems = CLAMP (mixer_n_vis_elems, 1, mixer_n_view_elems);
   mixer_extra_space = mixer_max_x - mixer_ofs_x * 2 + 1 - mixer_n_vis_elems * 9;
   mixer_extra_space = MAX (0, mixer_extra_space / (mixer_n_vis_elems + 1));
   if (MIXER_TEXT_Y + 10 < mixer_max_y)
@@ -1769,9 +1791,13 @@
       break;
     case 13:	/* Return */
     case 10:	/* NewLine */
-      if (mixer_view == VIEW_CHANNELS)
+      if (mixer_view == VIEW_CHANNELS) {
 	mixer_clear (FALSE);
-      mixer_view = VIEW_CHANNELS;
+      } else {
+        mixer_view = VIEW_CHANNELS;
+        mixer_changed_state=1;
+        mixer_reinit ();
+      } 
       key = 0;
       break;
     case 'h':
@@ -1785,6 +1811,26 @@
       mixer_view = VIEW_PROCINFO;
       key = 0;
       break;
+    case KEY_F (3):
+      if (mixer_view == VIEW_PLAYBACK) {
+	mixer_clear (FALSE);
+      } else {
+        mixer_view = VIEW_PLAYBACK;
+        mixer_changed_state=1;
+        mixer_reinit ();
+      } 
+      key = 0;
+      break;
+    case KEY_F (4):
+      if (mixer_view == VIEW_CAPTURE) {
+	mixer_clear (FALSE);
+      } else {
+        mixer_view = VIEW_CAPTURE;
+        mixer_changed_state=1;
+        mixer_reinit ();
+      } 
+      key = 0;
+      break;
     case '\014':
     case 'L':
     case 'l':
@@ -1855,7 +1901,10 @@
 	break;
       }
   
-  if (key && mixer_view == VIEW_CHANNELS)
+  if (key && 
+    ((mixer_view == VIEW_CHANNELS) ||
+    (mixer_view == VIEW_PLAYBACK) ||
+    (mixer_view == VIEW_CAPTURE)) )
     switch (key)
       {
       case KEY_RIGHT:
@@ -1955,7 +2004,7 @@
   if (old_view != mixer_view)
     mixer_clear (FALSE);
   
-  mixer_focus_elem = CLAMP (mixer_focus_elem, 0, mixer_n_elems - 1);
+  mixer_focus_elem = CLAMP (mixer_focus_elem, 0, mixer_n_view_elems - 1);
   
   return finished;
 }
@@ -2027,7 +2076,7 @@
   mixer_init ();
   mixer_reinit ();
   
-  if (mixer_n_elems == 0) {
+  if (mixer_n_view_elems == 0) {
     fprintf(stderr, "No mixer elems found\n");
     mixer_abort (ERR_NONE, "", 0);
   }
@@ -2060,6 +2109,8 @@
 	  switch (mixer_view)
 	    {
 	    case VIEW_CHANNELS:
+	    case VIEW_PLAYBACK:
+	    case VIEW_CAPTURE:
 	      mixer_update_cbars ();
 	      break;
 	    case VIEW_HELP:

Re: [PATCH] Change alsamixer to show different views. Playback controls, or Capture controls.

[Takashi Iwai]

At Fri, 27 Aug 2004 13:51:26 +0100,
James Courtier-Dutton wrote:
> 
> I attach a diff file against ./alsa-utils/alsamixer/alsamixer.c
> 
> It causes alsamixer to display 2 different views of the mixer controls.
> One view shows only the "Playback" controls, the other view shows only 
> the "Capture" controls, with a hidden mode (Press F1, then Enter) to 
> show the old method of all controls together.

Nice work, applied to cvs.


Takashi


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Re: [PATCH] Change alsamixer to show different views. Playback controls, or Capture controls.

[James Courtier-Dutton]

Takashi Iwai wrote:
> At Fri, 27 Aug 2004 13:51:26 +0100,
> James Courtier-Dutton wrote:
> 
>>I attach a diff file against ./alsa-utils/alsamixer/alsamixer.c
>>
>>It causes alsamixer to display 2 different views of the mixer controls.
>>One view shows only the "Playback" controls, the other view shows only 
>>the "Capture" controls, with a hidden mode (Press F1, then Enter) to 
>>show the old method of all controls together.
> 
> 
> Nice work, applied to cvs.
> 
> 
> Takashi
> 

I have a question. The "Mic Boost" seems to think it is a "Playback" 
control. What would be the best way to getting that to be a "Capture" 
control. Would simply editing it in ac97_codec.c be enough?




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Re: [PATCH] Change alsamixer to show different views. Playback controls, or Capture controls.

[Takashi Iwai]

At Fri, 27 Aug 2004 17:42:41 +0100,
James Courtier-Dutton wrote:
> 
> Takashi Iwai wrote:
> > At Fri, 27 Aug 2004 13:51:26 +0100,
> > James Courtier-Dutton wrote:
> > 
> >>I attach a diff file against ./alsa-utils/alsamixer/alsamixer.c
> >>
> >>It causes alsamixer to display 2 different views of the mixer controls.
> >>One view shows only the "Playback" controls, the other view shows only 
> >>the "Capture" controls, with a hidden mode (Press F1, then Enter) to 
> >>show the old method of all controls together.
> > 
> > 
> > Nice work, applied to cvs.
> > 
> > 
> > Takashi
> > 
> 
> I have a question. The "Mic Boost" seems to think it is a "Playback" 
> control. What would be the best way to getting that to be a "Capture" 
> control. Would simply editing it in ac97_codec.c be enough?

Hmm, when you change the control name itself, it breaks slightly
compatibility with older version.

I don't mind it, but maybe it would be wiser to change alsa-lib
simple.c to handle 'Mic Boost' as capture?


Takashi


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Re: [PATCH] Change alsamixer to show different views. Playback controls, or Capture controls.

[James Courtier-Dutton]

Takashi Iwai wrote:
>>
>>I have a question. The "Mic Boost" seems to think it is a "Playback" 
>>control. What would be the best way to getting that to be a "Capture" 
>>control. Would simply editing it in ac97_codec.c be enough?
> 
> 
> Hmm, when you change the control name itself, it breaks slightly
> compatibility with older version.

What does the name have to be compatible with?
I.e. What program might break if we change this in ac97_codec.c ?

> 
> I don't mind it, but maybe it would be wiser to change alsa-lib
> simple.c to handle 'Mic Boost' as capture?
> 
> 
> Takashi
> 
> 



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Re: [PATCH] Change alsamixer to show different views. Playback controls, or Capture controls.

[Takashi Iwai]

At Fri, 27 Aug 2004 18:34:21 +0100,
James Courtier-Dutton wrote:
> 
> Takashi Iwai wrote:
> >>
> >>I have a question. The "Mic Boost" seems to think it is a "Playback" 
> >>control. What would be the best way to getting that to be a "Capture" 
> >>control. Would simply editing it in ac97_codec.c be enough?
> > 
> > 
> > Hmm, when you change the control name itself, it breaks slightly
> > compatibility with older version.
> 
> What does the name have to be compatible with?
> I.e. What program might break if we change this in ac97_codec.c ?

Dunno.  But, at least, when you run "alsactl restore", the status
won't be restored.


Takashi


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Re: [PATCH] Change alsamixer to show different views. Playback controls, or Capture controls.

[Lee Revell]

On Fri, 2004-08-27 at 13:48, Takashi Iwai wrote:
> At Fri, 27 Aug 2004 18:34:21 +0100,
> James Courtier-Dutton wrote:
> > 
> > Takashi Iwai wrote:
> > >>
> > >>I have a question. The "Mic Boost" seems to think it is a "Playback" 
> > >>control. What would be the best way to getting that to be a "Capture" 
> > >>control. Would simply editing it in ac97_codec.c be enough?
> > > 
> > > 
> > > Hmm, when you change the control name itself, it breaks slightly
> > > compatibility with older version.
> > 
> > What does the name have to be compatible with?
> > I.e. What program might break if we change this in ac97_codec.c ?
> 
> Dunno.  But, at least, when you run "alsactl restore", the status
> won't be restored.
> 

Is it possible to have alsactl restore ignore controls that it does not
understand, leaving them set to the default value, rather than the
entire alsactl restore failing if it encounters an error?  I have been
bitten by this a few times when upgrading ALSA.

Lee



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Re: [PATCH] Change alsamixer to show different views. Playback controls, or Capture controls.

[James Courtier-Dutton]

[-- Attachment #1: Type: text/plain, Size: 871 bytes --]

Takashi Iwai wrote:
> At Fri, 27 Aug 2004 18:34:21 +0100,
> James Courtier-Dutton wrote:
> 
>>Takashi Iwai wrote:
>>
>>>>I have a question. The "Mic Boost" seems to think it is a "Playback" 
>>>>control. What would be the best way to getting that to be a "Capture" 
>>>>control. Would simply editing it in ac97_codec.c be enough?
>>>
>>>
>>>Hmm, when you change the control name itself, it breaks slightly
>>>compatibility with older version.
>>
>>What does the name have to be compatible with?
>>I.e. What program might break if we change this in ac97_codec.c ?
> 
> 
> Dunno.  But, at least, when you run "alsactl restore", the status
> won't be restored.
> 
> 
> Takashi
> 
> 

Thats true, but from a purely conceptual point of view, I think the Mic 
Boost should be associated with Capture and not associated with Playback.

I attach a patch to do just that.

James


[-- Attachment #2: mic-boost.diff.txt --]
[-- Type: text/plain, Size: 785 bytes --]

Index: alsa-driver/alsa-kernel/pci/ac97/ac97_codec.c
===================================================================
RCS file: /cvsroot/alsa/alsa-kernel/pci/ac97/ac97_codec.c,v
retrieving revision 1.144
diff -u -r1.144 ac97_codec.c
--- alsa-driver/alsa-kernel/pci/ac97/ac97_codec.c	11 Aug 2004 18:51:58 -0000	1.144
+++ alsa-driver/alsa-kernel/pci/ac97/ac97_codec.c	27 Aug 2004 21:10:44 -0000
@@ -687,7 +687,7 @@
 static const snd_kcontrol_new_t snd_ac97_controls_mic[3] = {
 AC97_SINGLE("Mic Playback Switch", AC97_MIC, 15, 1, 1),
 AC97_SINGLE("Mic Playback Volume", AC97_MIC, 0, 15, 1),
-AC97_SINGLE("Mic Boost (+20dB)", AC97_MIC, 6, 1, 0)
+AC97_SINGLE("Mic Boost (+20dB) Capture Switch", AC97_MIC, 6, 1, 0)
 };
 
 static const snd_kcontrol_new_t snd_ac97_control_capture_src = {

Re: [PATCH] Change alsamixer to show different views. Playback controls, or Capture controls.

[Jaroslav Kysela]

On Fri, 27 Aug 2004, Takashi Iwai wrote:

> I don't mind it, but maybe it would be wiser to change alsa-lib
> simple.c to handle 'Mic Boost' as capture?

Mic Boost is for both directions, isn't?

						Jaroslav

-----
Jaroslav Kysela <perex@suse.cz>
Linux Kernel Sound Maintainer
ALSA Project, SUSE Labs


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Re: [PATCH] Change alsamixer to show different views. Playback controls, or Capture controls.

[Takashi Iwai]

At Fri, 27 Aug 2004 14:37:14 -0400,
Lee Revell wrote:
> 
> On Fri, 2004-08-27 at 13:48, Takashi Iwai wrote:
> > At Fri, 27 Aug 2004 18:34:21 +0100,
> > James Courtier-Dutton wrote:
> > > 
> > > Takashi Iwai wrote:
> > > >>
> > > >>I have a question. The "Mic Boost" seems to think it is a "Playback" 
> > > >>control. What would be the best way to getting that to be a "Capture" 
> > > >>control. Would simply editing it in ac97_codec.c be enough?
> > > > 
> > > > 
> > > > Hmm, when you change the control name itself, it breaks slightly
> > > > compatibility with older version.
> > > 
> > > What does the name have to be compatible with?
> > > I.e. What program might break if we change this in ac97_codec.c ?
> > 
> > Dunno.  But, at least, when you run "alsactl restore", the status
> > won't be restored.
> > 
> 
> Is it possible to have alsactl restore ignore controls that it does not
> understand, leaving them set to the default value, rather than the
> entire alsactl restore failing if it encounters an error?  I have been
> bitten by this a few times when upgrading ALSA.

-F option does it although it still print warnings.
alsasound init script already uses this option.

However, using a default value means the lost of information, of
course :)


Takashi


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