/**
* Synchronized method to copy sensor value to specified buffer
*
* @param key Key name
* @param value Buffer to copy value to. Buffer should be already allocated with proper size to fit key value
*
* @return True on success False otherwise
*/
bool FakeSMCPlugin::getKeyValue(const char *key, void *value)
{
LOCK;
FakeSMCKey *smcKey = keyStore->getKey(key);
if (smcKey) {
memcpy(value, smcKey->getValue(), smcKey->getSize());
}
UNLOCK;
return smcKey != NULL;
}
IOReturn FakeSMCKeyStoreUserClient::externalMethod(uint32_t selector, IOExternalMethodArguments* arguments, IOExternalMethodDispatch * dispatch, OSObject * target, void * reference )
{
IOReturn result = kIOReturnError;
if (keyStore == NULL || isInactive()) {
result = kIOReturnNotAttached;
}
else if (!keyStore->isOpen(this)) {
result = kIOReturnNotOpen;
}
SYNCLOCK;
switch (selector) {
case KERNEL_INDEX_SMC: {
SMCKeyData_t *input = (SMCKeyData_t*)arguments->structureInput;
SMCKeyData_t *output = (SMCKeyData_t*)arguments->structureOutput;
switch (input->data8) {
case SMC_CMD_READ_INDEX: {
FakeSMCKey *key = keyStore->getKey(input->data32);
output->key = _strtoul(key->getKey(), 4, 16);
result = kIOReturnSuccess;
break;
}
case SMC_CMD_READ_KEYINFO: {
char name[5];
_ultostr(name, input->key);
FakeSMCKey *key = keyStore->getKey(name);
if (key) {
output->keyInfo.dataSize = key->getSize();
output->keyInfo.dataType = _strtoul(key->getType(), 4, 16);
result = kIOReturnSuccess;
}
else result = kIOReturnNotFound;
break;
}
case SMC_CMD_READ_BYTES: {
char name[5];
_ultostr(name, input->key);
FakeSMCKey *key = keyStore->getKey(name);
if (key) {
memcpy(output->bytes, key->getValue(), key->getSize());
result = kIOReturnSuccess;
}
else result = kIOReturnNotFound;
break;
}
case SMC_CMD_WRITE_BYTES: {
char name[5];
_ultostr(name, input->key);
IOLog("FakeSMCKeyStoreUserClient: SMC_CMD_WRITE_BYTES key=%s", name);
FakeSMCKey *key = keyStore->getKey(name);
if (key) {
key->setValueFromBuffer(input->bytes, input->keyInfo.dataSize);
result = kIOReturnSuccess;
}
else {
char type[5];
if (input->keyInfo.dataType) {
_ultostr(type, input->keyInfo.dataType);
}
else {
type[0] = '\0';
}
keyStore->addKeyWithValue(name, type, input->keyInfo.dataSize, input->bytes);
result = kIOReturnSuccess;
}
break;
}
default:
result = kIOReturnBadArgument;
break;
}
break;
}
default:
result = kIOReturnBadArgument;
break;
}
SYNCUNLOCK;
return result;
}
FakeSMCKey *FakeSMCKeyStore::addKeyWithValue(const char *name, const char *type, unsigned char size, const void *value)
{
KEYSLOCK;
FakeSMCKey* key;
if ((key = getKey(name))) {
// if (type && strncmp(type, key->getType(), 4) == 0) {
// key->setType(type);
// }
if (value) {
key->setValueFromBuffer(value, size);
}
#ifdef DEBUG
if (kHWSensorsDebug) {
if (strncmp("NATJ", key->getKey(), 5) == 0) {
UInt8 val = *(UInt8*)key->getValue();
switch (val) {
case 0:
HWSensorsInfoLog("Ninja Action Timer Job: do nothing");
break;
case 1:
HWSensorsInfoLog("Ninja Action Timer Job: force shutdown to S5");
break;
case 2:
HWSensorsInfoLog("Ninja Action Timer Job: force restart");
break;
case 3:
HWSensorsInfoLog("Ninja Action Timer Job: force startup");
break;
default:
break;
}
}
else if (strncmp("NATi", key->getKey(), 5) == 0) {
UInt16 val = *(UInt16*)key->getValue();
HWSensorsInfoLog("Ninja Action Timer is set to %d", val);
}
else if (strncmp("MSDW", key->getKey(), 5) == 0) {
UInt8 val = *(UInt8*)key->getValue();
switch (val) {
case 0:
HWSensorsInfoLog("display is now asleep");
break;
case 1:
HWSensorsInfoLog("display is now awake");
break;
default:
break;
}
}
}
HWSensorsDebugLog("value updated for key %s, type: %s, size: %d", key->getKey(), key->getType(), key->getSize());
#endif
}
else {
HWSensorsDebugLog("adding key %s with value, type: %s, size: %d", name, type, size);
OSString *wellKnownType = 0;
if (!type) wellKnownType = OSDynamicCast(OSString, types->getObject(name));
key = FakeSMCKey::withValue(name, type ? type : wellKnownType ? wellKnownType->getCStringNoCopy() : 0, size, value);
if (key) {
keys->setObject(key);
updateKeyCounterKey();
}
}
KEYSUNLOCK;
if (!key)
HWSensorsErrorLog("addKeyWithValue: failed to create key %s", name);
return key;
}