GdkFilterReturn filter(GdkXEvent *xevent, GdkEvent *event, gpointer data)
{
XEvent *e = (XEvent *)xevent;
pa_context *c = (pa_context *)data;
if (pa_context_get_state(c) != PA_CONTEXT_READY)
return GDK_FILTER_CONTINUE;
switch (e->type) {
case KeyPress:
if (e->xkey.keycode == keycodes[RAISE_VOLUME])
change_volume(c, +VOLUME_INCREMENT);
else if (e->xkey.keycode == keycodes[LOWER_VOLUME])
change_volume(c, -VOLUME_INCREMENT);
else if (e->xkey.keycode == keycodes[MUTE])
toggle_mute(c);
else if (e->xkey.keycode == keycodes[MIC_MUTE])
toggle_mic_mute(c);
break;
default:
break;
}
return GDK_FILTER_CONTINUE;
}
void
set_volume(void *data)
{
unsigned char lrvl[4];
MIX_CHANNEL *dev = (MIX_CHANNEL *) data;
if (mute_status)
{
mute_status = 0;
toggle_mute(&channels[0]);
Epplet_gadget_data_changed(b_mute);
}
lrvl[0] = (20 - (unsigned char)dev->value) * 5;
lrvl[1] = lrvl[0];
lrvl[2] = lrvl[3] = 0;
ioctl(fd_mixer, MIXER_WRITE(dev->id), lrvl);
}
static int snd_bcm2835_ctl_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct bcm2835_chip *chip = snd_kcontrol_chip(kcontrol);
int changed = 0;
if (kcontrol->private_value == PCM_PLAYBACK_VOLUME) {
audio_info("Volume change attempted.. volume = %d new_volume = %d\n", chip->volume, (int)ucontrol->value.integer.value[0]);
if (chip->mute == CTRL_VOL_MUTE) {
/* changed = toggle_mute(chip, CTRL_VOL_UNMUTE); */
return 1; /* should return 0 to signify no change but the mixer takes this as the opposite sign (no idea why) */
}
if (changed
|| (ucontrol->value.integer.value[0] != chip2alsa(chip->volume))) {
chip->volume = alsa2chip(ucontrol->value.integer.value[0]);
changed = 1;
}
} else if (kcontrol->private_value == PCM_PLAYBACK_MUTE) {
/* Now implemented */
audio_info(" Mute attempted\n");
changed = toggle_mute(chip, ucontrol->value.integer.value[0]);
} else if (kcontrol->private_value == PCM_PLAYBACK_DEVICE) {
if (ucontrol->value.integer.value[0] != chip->dest) {
chip->dest = ucontrol->value.integer.value[0];
changed = 1;
}
}
if (changed) {
if (bcm2835_audio_set_ctls(chip))
printk(KERN_ERR "Failed to set ALSA controls..\n");
}
return changed;
}
static void on_handle_key(int key)
{
switch (key) {
case 27:
case KEY_CANCEL:
case KEY_F(10):
mixer_widget.close();
break;
case KEY_F(1):
case KEY_HELP:
case 'H':
case 'h':
case '?':
show_help();
break;
case KEY_F(2):
case '/':
create_proc_files_list();
break;
case KEY_F(3):
set_view_mode(VIEW_MODE_PLAYBACK);
break;
case KEY_F(4):
set_view_mode(VIEW_MODE_CAPTURE);
break;
case KEY_F(5):
set_view_mode(VIEW_MODE_ALL);
break;
case '\t':
set_view_mode((enum view_mode)((view_mode + 1) % VIEW_MODE_COUNT));
break;
case KEY_F(6):
case 'S':
case 's':
create_card_select_list();
break;
case KEY_REFRESH:
case 12:
case 'L':
case 'l':
clearok(mixer_widget.window, TRUE);
display_controls();
break;
case KEY_LEFT:
case 'P':
case 'p':
if (focus_control_index > 0) {
--focus_control_index;
refocus_control();
}
break;
case KEY_RIGHT:
case 'N':
case 'n':
if (focus_control_index < controls_count - 1) {
++focus_control_index;
refocus_control();
}
break;
case KEY_PPAGE:
change_control_relative(5, LEFT | RIGHT);
break;
case KEY_NPAGE:
change_control_relative(-5, LEFT | RIGHT);
break;
#if 0
case KEY_BEG:
case KEY_HOME:
change_control_to_percent(100, LEFT | RIGHT);
break;
#endif
case KEY_LL:
case KEY_END:
change_control_to_percent(0, LEFT | RIGHT);
break;
case KEY_UP:
case '+':
case 'K':
case 'k':
case 'W':
case 'w':
change_control_relative(1, LEFT | RIGHT);
break;
case KEY_DOWN:
case '-':
case 'J':
case 'j':
case 'X':
case 'x':
change_control_relative(-1, LEFT | RIGHT);
break;
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
change_control_to_percent((key - '0') * 10, LEFT | RIGHT);
break;
case 'Q':
case 'q':
change_control_relative(1, LEFT);
break;
case 'Y':
case 'y':
case 'Z':
case 'z':
change_control_relative(-1, LEFT);
break;
case 'E':
case 'e':
change_control_relative(1, RIGHT);
break;
case 'C':
case 'c':
change_control_relative(-1, RIGHT);
break;
case 'M':
case 'm':
toggle_mute(LEFT | RIGHT);
break;
case 'B':
case 'b':
case '=':
balance_volumes();
break;
case '<':
case ',':
toggle_mute(LEFT);
break;
case '>':
case '.':
toggle_mute(RIGHT);
break;
case ' ':
toggle_capture(LEFT | RIGHT);
break;
case KEY_IC:
case ';':
toggle_capture(LEFT);
break;
case KEY_DC:
case '\'':
toggle_capture(RIGHT);
break;
}
}
