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continued sd card manager

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This commit is contained in:
Robin Müller
2021-07-08 11:23:08 +02:00
committed by Robin Mueller
parent 7600e10f1b
commit e5c3e2da53
3 changed files with 91 additions and 24 deletions
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82
bsp_q7s/memory/SdCardManager.cpp
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@ -25,50 +25,90 @@ SdCardManager* SdCardManager::instance() {
}
ReturnValue_t SdCardManager::switchOnSdCard(sd::SdCard sdCard) {
if(sdCardActive(sdCard)) {
return ALREADY_ON;
}
return HasReturnvaluesIF::RETURN_OK;
// if(sdCardActive(sdCard)) {
// return ALREADY_ON;
// }
return setSdCardState(sdCard, true);
}
ReturnValue_t SdCardManager::switchOffSdCard(sd::SdCard sdCard) {
return HasReturnvaluesIF::RETURN_OK;
// if(not sdCardActive(sdCard)) {
// return ALREADY_OFF;
// }
return setSdCardState(sdCard, false);
}
bool SdCardManager::sdCardActive(sd::SdCard sdCard) {
ReturnValue_t SdCardManager::setSdCardState(sd::SdCard sdCard, bool on) {
std::string sdstring = "";
std::string statestring = "";
if(sdCard == sd::SdCard::SLOT_0) {
sdstring = "0";
}
else if(sdCard == sd::SdCard::SLOT_1) {
sdstring = "1";
}
if(on) {
statestring = "on";
}
else {
statestring = "off";
}
std::ostringstream command;
command << "h7hw sd set " << sdstring << " " << statestring;
int result = std::system(command.str().c_str());
if(result == 0) {
return HasReturnvaluesIF::RETURN_OK;
}
sif::warning << "SdCardManager::setSdCardState: system call failed with code " <<
result << std::endl;
return HasReturnvaluesIF::RETURN_FAILED;
}
ReturnValue_t SdCardManager::sdCardActive(std::pair<bool, bool>& active) {
using namespace std;
if(not filesystem::exists("/tmp/sd_status.txt")) {
ReturnValue_t result = updateSdCardStateFile();
if(result != HasReturnvaluesIF::RETURN_OK) {
return result;
}
return STATUS_FILE_NEXISTS;
}
// Now the file should exist in any case. Still check whether it exists.
fstream sdStatus("/tmp/sd_status.txt");
if (not sdStatus.good()) {
return false;
return STATUS_FILE_NEXISTS;
}
string line;
uint8_t idx = 0;
ReturnValue_t result = HasReturnvaluesIF::RETURN_OK;
bool on = false;
while (std::getline(sdStatus, line)) {
istringstream iss(line);
string word;
if((sdCard == sd::SdCard::SLOT_0 and idx == 0) or
(sdCard == sd::SdCard::SLOT_1 and idx == 1)) {
while(iss >> word) {
if(word == "on") {
return true;
}
else {
return false;
}
while(iss >> word) {
if(word == "on") {
on = true;
}
else if (word == "off") {
on = false;
}
else {
continue;
}
if(idx == 0) {
active.first = on;
}
else if(idx == 1) {
active.second = on;
}
else if(idx > 1) {
sif::warning << "SdCardManager::sdCardActive: Status file has more "
"than 2 lines!" << std::endl;
return STATUS_FILE_FORMAT_INVALID;
}
}
idx++;
}
return HasReturnvaluesIF::RETURN_OK;
return false;
}
sd::SdCard SdCardManager::getPreferredSdCard() const {