eive/eive-obsw
eive/eive-obsw
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added docs and improvements

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This commit is contained in:
Robin Müller 2021-07-12 11:47:23 +02:00 committed by Robin Mueller
parent 4fc56417bc
commit 658e9a4907
2 changed files with 21 additions and 7 deletions
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8
bsp_q7s/memory/SdCardManager.cpp
View File

@ -117,12 +117,12 @@ ReturnValue_t SdCardManager::setSdCardState(sd::SdCard sdCard, bool on) {
ReturnValue_t SdCardManager::sdCardActive(std::pair<sd::SdStatus, sd::SdStatus>& active) {
using namespace std;
if(not filesystem::exists("/tmp/sd_status.txt")) {
if(not filesystem::exists(SD_STATE_FILE)) {
return STATUS_FILE_NEXISTS;
}
// Now the file should exist in any case. Still check whether it exists.
fstream sdStatus("/tmp/sd_status.txt");
fstream sdStatus(SD_STATE_FILE);
if (not sdStatus.good()) {
return STATUS_FILE_NEXISTS;
}
@ -261,7 +261,9 @@ void SdCardManager::setPreferredSdCard(sd::SdCard sdCard) {
}
ReturnValue_t SdCardManager::updateSdCardStateFile() {
int result = std::system("q7hw sd info all > /tmp/sd_status.txt");
// Use q7hw utility and pipe the command output into the state file
std::string updateCmd = "q7hw sd info all > " + SD_STATE_FILE;
int result = std::system(updateCmd.c_str());
if(result == 0) {
return HasReturnvaluesIF::RETURN_OK;
}

20
bsp_q7s/memory/SdCardManager.h
View File

@ -38,6 +38,7 @@ public:
static constexpr char SD_1_DEV_NAME[] = "/dev/mmcblk1p1";
static constexpr char SD_0_MOUNT_POINT[] = "/mnt/sd0";
static constexpr char SD_1_MOUNT_POINT[] = "/mnt/sd1";
static constexpr char SD_STATE_FILE[] = "/tmp/sd_status.txt";
virtual ~SdCardManager();
@ -53,7 +54,7 @@ public:
sd::SdCard getPreferredSdCard() const;
/**
* Switch on the specified SD card
* Switch on the specified SD card.
* @param sdCard
* @param doMountSdCard Mount the SD card after switching it on, which is necessary
* to use it
@ -63,7 +64,7 @@ public:
ReturnValue_t switchOnSdCard(sd::SdCard sdCard, bool doMountSdCard = true);
/**
* Switch off the specified SD card
* Switch off the specified SD card.
* @param sdCard
* @param doUnmountSdCard Unmount the SD card before switching the card off, which makes
* the operation safer
@ -73,8 +74,8 @@ public:
ReturnValue_t switchOffSdCard(sd::SdCard sdCard, bool doUnmountSdCard = true);
/**
* Updated the state file or creates one if it does not exist. You need to call this
* function before calling #sdCardActiv
* Update the state file or creates one if it does not exist. You need to call this
* function before calling #sdCardActive
* @return - RETURN_OK if the state file was updated successfully
* - SYSTEM_CALL_ERROR if the call to create the status file failed
*/
@ -93,7 +94,18 @@ public:
*/
ReturnValue_t sdCardActive(std::pair<sd::SdStatus, sd::SdStatus>& active);
/**
* Mount the specified SD card. This is necessary to use it.
* @param sdCard
* @return
*/
ReturnValue_t mountSdCard(sd::SdCard sdCard);
/**
* Unmount the specified SD card. This is recommended before switching it off. The SD card
* can't be used after it has been unmounted.
* @param sdCard
* @return
*/
ReturnValue_t unmountSdCard(sd::SdCard sdCard);
sd::SdCard getPreferedSdCard() const;