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Make mixer ioctls load from a memory buffer rather than a file. This is prep for uploading the memory buffer to IO to be processed there.

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This commit is contained in:
px4dev
2012-12-29 00:01:04 -08:00
parent f0da789626
commit 35c82ff2fc
10 changed files with 536 additions and 464 deletions
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apps/drivers/hil/hil.cpp
+8 -10
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@@ -577,21 +577,19 @@ HIL::pwm_ioctl(file *filp, int cmd, unsigned long arg)
break;
}
case MIXERIOCLOADFILE: {
const char *path = (const char *)arg;
case MIXERIOCLOADBUF: {
const char *buf = (const char *)arg;
unsigned buflen = strnlen(buf, 1024);
if (_mixers != nullptr) {
delete _mixers;
_mixers = nullptr;
}
if (_mixers == nullptr)
_mixers = new MixerGroup(control_callback, (uintptr_t)&_controls);
_mixers = new MixerGroup(control_callback, (uintptr_t)&_controls);
if (_mixers == nullptr) {
ret = -ENOMEM;
} else {
debug("loading mixers from %s", path);
ret = _mixers->load_from_file(path);
ret = _mixers->load_from_buf(buf, buflen);
if (ret != 0) {
debug("mixer load failed with %d", ret);
@@ -600,10 +598,10 @@ HIL::pwm_ioctl(file *filp, int cmd, unsigned long arg)
ret = -EINVAL;
}
}
break;
}
default:
ret = -ENOTTY;
break;