/**
* @brief Receive key presses and update the trim data
* @note
* @param key: Which trim key was pressed.
* @retval None
*/
void mixer_input_trim(KEYPAD_KEY key)
{
uint8_t channel = 0;
int8_t increment = 0;
uint8_t endstop = 0;
switch (key)
{
case KEY_CH1_UP:
channel = 0; increment = 1; break;
case KEY_CH2_UP:
channel = 1; increment = 1; break;
case KEY_CH3_UP:
channel = 2; increment = 1; break;
case KEY_CH4_UP:
channel = 3; increment = 1; break;
case KEY_CH1_DN:
channel = 0; increment = -1; break;
case KEY_CH2_DN:
channel = 1; increment = -1; break;
case KEY_CH3_DN:
channel = 2; increment = -1; break;
case KEY_CH4_DN:
channel = 3; increment = -1; break;
default:
break;
}
if (increment > 0)
{
if (g_model.trim[channel] < MIXER_TRIM_LIMIT)
g_model.trim[channel] += trim_increment;
else
endstop = 1;
}
else
{
if (g_model.trim[channel] > -MIXER_TRIM_LIMIT)
g_model.trim[channel] -= trim_increment;
else
endstop = 1;
}
if (g_model.trim[channel] == 0)
endstop = 1;
if (endstop != 0)
{
keypad_cancel_repeat();
sound_play_tone(500 + 250*g_model.trim[channel]/MIXER_TRIM_LIMIT, 200);
}
else
{
sound_play_tone(500 + 250*g_model.trim[channel]/MIXER_TRIM_LIMIT, 100);
}
}
ER ev3_speaker_stop() {
return sound_play_tone(0, 0);
}
ER ev3_speaker_play_tone(uint16_t frequency, int32_t duration) {
return sound_play_tone(frequency, duration);
}
