bool jsfsInit() {
#ifndef LINUX
if (!fat_initialised) {
#ifdef SD_CARD_ANYWHERE
if (!isSdSPISetup()) {
#ifdef SD_SPI
const char *deviceStr = jshGetDeviceString(SD_SPI);
JsVar *spi = jsvSkipNameAndUnLock(jspGetNamedVariable(deviceStr));
JshSPIInfo inf;
jshSPIInitInfo(&inf);
inf.pinMISO = SD_DO_PIN;
inf.pinMOSI = SD_DI_PIN;
inf.pinSCK = SD_CLK_PIN;
jshSPISetup(SD_SPI, &inf);
sdSPISetup(spi, SD_CS_PIN);
jsvUnLock(spi);
#else
jsError("SD card must be setup with E.connectSDCard first");
return false;
#endif
}
#endif
FRESULT res;
if ((res = f_mount(&jsfsFAT, "", 1/*immediate*/)) != FR_OK) {
jsfsReportError("Unable to mount SD card", res);
return false;
}
fat_initialised = true;
}
#endif
return true;
}
/*JSON{
"type" : "kill",
"generate" : "jswrap_file_kill"
}*/
void jswrap_file_kill() {
JsVar *arr = fsGetArray(false);
if (arr) {
JsvObjectIterator it;
jsvObjectIteratorNew(&it, arr);
while (jsvObjectIteratorHasValue(&it)) {
JsVar *file = jsvObjectIteratorGetValue(&it);
jswrap_file_close(file);
jsvUnLock(file);
jsvObjectIteratorNext(&it);
}
jsvObjectIteratorFree(&it);
jsvRemoveAllChildren(arr);
jsvUnLock(arr);
}
// close fs library
#ifndef LINUX
if (fat_initialised) {
fat_initialised = false;
f_mount(0, 0, 0);
}
#endif
#ifdef SD_CARD_ANYWHERE
sdSPISetup(0, PIN_UNDEFINED);
#endif
}
/*JSON{
"type" : "staticmethod",
"class" : "E",
"name" : "connectSDCard",
"generate" : "jswrap_E_connectSDCard",
"ifndef" : "SAVE_ON_FLASH",
"params" : [
["spi","JsVar","The SPI object to use for communication"],
["csPin","pin","The pin to use for Chip Select"]
]
}
Setup the filesystem so that subsequent calls to `E.openFile` and `require('fs').*` will use an SD card on the supplied SPI device and pin.
It can even work using software SPI - for instance:
```
var spi = new SPI();
spi.setup({mosi:C7,miso:C8,sck:C9});
E.connectSDCard(spi,C6);
console.log(require("fs").readdirSync());
```
*/
void jswrap_E_connectSDCard(JsVar *spi, Pin csPin) {
#ifdef SD_CARD_ANYWHERE
if (!jsvIsObject(spi)) {
jsExceptionHere(JSET_ERROR, "First argument is a %t, not an SPI object\n", spi);
return;
}
if (!jshIsPinValid(csPin)) {
jsExceptionHere(JSET_ERROR, "Second argument is not a valid pin");
return;
}
jswrap_E_unmountSD();
sdSPISetup(spi, csPin);
#else
jsExceptionHere(JSET_ERROR, "Unimplemented on Linux");
#endif
}
bool jsfsInit() {
#ifndef LINUX
if (!fat_initialised) {
#ifndef USE_FLASHFS
#ifdef SD_CARD_ANYWHERE
if (!isSdSPISetup()) {
#ifdef SD_SPI
const char *deviceStr = jshGetDeviceString(SD_SPI);
JsVar *spi = jsvSkipNameAndUnLock(jspGetNamedVariable(deviceStr));
JshSPIInfo inf;
jshSPIInitInfo(&inf);
inf.baudRate = 4000000; // 4Mhz bit rate for onboard SD cards
inf.pinMISO = SD_DO_PIN;
inf.pinMOSI = SD_DI_PIN;
inf.pinSCK = SD_CLK_PIN;
jshSPISetup(SD_SPI, &inf);
sdSPISetup(spi, SD_CS_PIN);
jsvUnLock(spi);
#else
jsExceptionHere(JSET_ERROR,"SD card must be setup with E.connectSDCard first");
return false;
#endif // SD_SPI
}
#endif // SD_CARD_ANYWHER
#endif // USE_FLASHFS
FRESULT res;
if ((res = f_mount(&jsfsFAT, "", 1)) != FR_OK) {
jsfsReportError("Unable to mount media", res);
return false;
}
fat_initialised = true;
}
#endif // LINUX
return true;
}
