本文整理汇总了C++中MixerGroup::add_mixer方法的典型用法代码示例。如果您正苦于以下问题：C++ MixerGroup::add_mixer方法的具体用法？C++ MixerGroup::add_mixer怎么用？C++ MixerGroup::add_mixer使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类MixerGroup的用法示例。
在下文中一共展示了MixerGroup::add_mixer方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: SimpleMixer
int
PCA9685::ioctl(struct file *filp, int cmd, unsigned long arg)
{
int ret = -EINVAL;
switch (cmd) {
case MIXERIOCRESET:
if (_mixers != nullptr) {
delete _mixers;
_mixers = nullptr;
_groups_required = 0;
}
ret = OK;
break;
case MIXERIOCADDSIMPLE: {
mixer_simple_s *mixinfo = (mixer_simple_s *)arg;
SimpleMixer *mixer = new SimpleMixer(control_callback,
(uintptr_t)_controls, mixinfo);
if (mixer->check()) {
delete mixer;
_groups_required = 0;
ret = -EINVAL;
} else {
if (_mixers == nullptr)
_mixers = new MixerGroup(control_callback,
(uintptr_t)_controls);
_mixers->add_mixer(mixer);
_mixers->groups_required(_groups_required);
ret = OK;
}
break;
}
case MIXERIOCLOADBUF: {
const char *buf = (const char *)arg;
unsigned buflen = strnlen(buf, 1024);
if (_mixers == nullptr) {
_mixers = new MixerGroup(control_callback,
(uintptr_t)_controls);
}
if (_mixers == nullptr) {
_groups_required = 0;
ret = -ENOMEM;
} else {
ret = _mixers->load_from_buf(buf, buflen);
if (ret != 0) {
DEVICE_DEBUG("mixer load failed with %d", ret);
delete _mixers;
_mixers = nullptr;
_groups_required = 0;
ret = -EINVAL;
} else {
_mixers->groups_required(_groups_required);
ret = OK;
}
}
break;
}
case IOX_SET_MODE:
if (_mode != (IOX_MODE)arg) {
switch ((IOX_MODE)arg) {
case IOX_MODE_OFF:
warnx("shutting down");
break;
case IOX_MODE_ON:
warnx("starting");
break;
case IOX_MODE_TEST_OUT:
warnx("test starting");
break;
default:
return -1;
}
_mode = (IOX_MODE)arg;
}
// if not active, kick it
if (!_running) {
_running = true;
work_queue(LPWORK, &_work, (worker_t)&PCA9685::i2cpwm_trampoline, this, 1);
}
//.........这里部分代码省略.........
示例2: PWM_SERVO_SET
//.........这里部分代码省略.........
set_mode(MODE_NONE);
break;
case 2:
set_mode(MODE_2PWM);
break;
case 4:
set_mode(MODE_4PWM);
break;
#if defined(CONFIG_ARCH_BOARD_PX4FMU_V2)
case 6:
set_mode(MODE_6PWM);
break;
#endif
#if defined(CONFIG_ARCH_BOARD_AEROCORE)
case 8:
set_mode(MODE_8PWM);
break;
#endif
default:
ret = -EINVAL;
break;
}
break;
}
case MIXERIOCRESET:
if (_mixers != nullptr) {
delete _mixers;
_mixers = nullptr;
_groups_required = 0;
}
break;
case MIXERIOCADDSIMPLE: {
mixer_simple_s *mixinfo = (mixer_simple_s *)arg;
SimpleMixer *mixer = new SimpleMixer(control_callback,
(uintptr_t)_controls, mixinfo);
if (mixer->check()) {
delete mixer;
_groups_required = 0;
ret = -EINVAL;
} else {
if (_mixers == nullptr)
_mixers = new MixerGroup(control_callback,
(uintptr_t)_controls);
_mixers->add_mixer(mixer);
_mixers->groups_required(_groups_required);
}
break;
}
case MIXERIOCLOADBUF: {
const char *buf = (const char *)arg;
unsigned buflen = strnlen(buf, 1024);
if (_mixers == nullptr)
_mixers = new MixerGroup(control_callback, (uintptr_t)_controls);
if (_mixers == nullptr) {
_groups_required = 0;
ret = -ENOMEM;
} else {
ret = _mixers->load_from_buf(buf, buflen);
if (ret != 0) {
debug("mixer load failed with %d", ret);
delete _mixers;
_mixers = nullptr;
_groups_required = 0;
ret = -EINVAL;
} else {
_mixers->groups_required(_groups_required);
}
}
break;
}
default:
ret = -ENOTTY;
break;
}
unlock();
return ret;
}示例3: PWM_SERVO_SET
int
FMUServo::ioctl(struct file *filp, int cmd, unsigned long arg)
{
int ret = OK;
int channel;
switch (cmd) {
case PWM_SERVO_ARM:
up_pwm_servo_arm(true);
break;
case PWM_SERVO_DISARM:
up_pwm_servo_arm(false);
break;
case PWM_SERVO_SET(2):
case PWM_SERVO_SET(3):
if (_mode != MODE_4PWM) {
ret = -EINVAL;
break;
}
/* FALLTHROUGH */
case PWM_SERVO_SET(0):
case PWM_SERVO_SET(1):
if (arg < 2100) {
channel = cmd - PWM_SERVO_SET(0);
up_pwm_servo_set(channel, arg);
} else {
ret = -EINVAL;
}
break;
case PWM_SERVO_GET(2):
case PWM_SERVO_GET(3):
if (_mode != MODE_4PWM) {
ret = -EINVAL;
break;
}
/* FALLTHROUGH */
case PWM_SERVO_GET(0):
case PWM_SERVO_GET(1): {
channel = cmd - PWM_SERVO_SET(0);
*(servo_position_t *)arg = up_pwm_servo_get(channel);
break;
}
case MIXERIOCGETOUTPUTCOUNT:
if (_mode == MODE_4PWM) {
*(unsigned *)arg = 4;
} else {
*(unsigned *)arg = 2;
}
break;
case MIXERIOCRESET:
if (_mixers != nullptr) {
delete _mixers;
_mixers = nullptr;
}
break;
case MIXERIOCADDSIMPLE: {
mixer_simple_s *mixinfo = (mixer_simple_s *)arg;
SimpleMixer *mixer = new SimpleMixer(control_callback_trampoline, (uintptr_t)this, mixinfo);
if (mixer->check()) {
delete mixer;
ret = -EINVAL;
} else {
if (_mixers == nullptr)
_mixers = new MixerGroup(control_callback_trampoline, (uintptr_t)this);
_mixers->add_mixer(mixer);
}
break;
}
case MIXERIOCADDMULTIROTOR:
/* XXX not yet supported */
ret = -ENOTTY;
break;
case MIXERIOCLOADFILE: {
const char *path = (const char *)arg;
if (_mixers != nullptr) {
delete _mixers;
_mixers = nullptr;
}
//.........这里部分代码省略.........