/*JSON{
"type" : "constructor",
"class" : "Date",
"name" : "Date",
"generate" : "jswrap_date_constructor",
"params" : [
["args","JsVarArray","Either nothing (current time), one numeric argument (milliseconds since 1970), a date string (see `Date.parse`), or [year, month, day, hour, minute, second, millisecond] "]
],
"return" : ["JsVar","A Date object"],
"return_object" : "Date"
}
Creates a date object
*/
JsVar *jswrap_date_constructor(JsVar *args) {
JsVarFloat time = 0;
if (jsvGetArrayLength(args)==0) {
time = jswrap_date_now();
} else if (jsvGetArrayLength(args)==1) {
JsVar *arg = jsvGetArrayItem(args, 0);
if (jsvIsNumeric(arg))
time = jsvGetFloat(arg);
else if (jsvIsString(arg))
time = jswrap_date_parse(arg);
else
jsWarn("Variables of type %t are not supported in date constructor", arg);
jsvUnLock(arg);
} else {
CalendarDate date;
date.year = (int)jsvGetIntegerAndUnLock(jsvGetArrayItem(args, 0));
date.month = (int)jsvGetIntegerAndUnLock(jsvGetArrayItem(args, 1));
date.day = (int)jsvGetIntegerAndUnLock(jsvGetArrayItem(args, 2));
TimeInDay td;
td.daysSinceEpoch = fromCalenderDate(&date);
td.hour = (int)jsvGetIntegerAndUnLock(jsvGetArrayItem(args, 3));
td.min = (int)jsvGetIntegerAndUnLock(jsvGetArrayItem(args, 4));
td.sec = (int)jsvGetIntegerAndUnLock(jsvGetArrayItem(args, 5));
td.ms = (int)jsvGetIntegerAndUnLock(jsvGetArrayItem(args, 6));
td.zone = 0;
time = fromTimeInDay(&td);
}
return jswrap_date_from_milliseconds(time);
}
/*JSON{
"type" : "staticmethod",
"class" : "fs",
"name" : "pipe",
"ifndef" : "SAVE_ON_FLASH",
"generate" : "jswrap_pipe",
"params" : [
["source","JsVar","The source file/stream that will send content."],
["destination","JsVar","The destination file/stream that will receive content from the source."],
["options","JsVar",["An optional object `{ chunkSize : int=64, end : bool=true, complete : function }`","chunkSize : The amount of data to pipe from source to destination at a time","complete : a function to call when the pipe activity is complete","end : call the 'end' function on the destination when the source is finished"]]
]
}*/
void jswrap_pipe(JsVar* source, JsVar* dest, JsVar* options) {
if (!source || !dest) return;
JsVar *pipe = jspNewObject(0, "Pipe");
JsVar *arr = pipeGetArray(true);
JsVar* position = jsvNewFromInteger(0);
if (pipe && arr && position) {// out of memory?
JsVar *readFunc = jspGetNamedField(source, "read", false);
JsVar *writeFunc = jspGetNamedField(dest, "write", false);
if(jsvIsFunction(readFunc)) {
if(jsvIsFunction(writeFunc)) {
JsVarInt chunkSize = 64;
bool callEnd = true;
// parse Options Object
if (jsvIsObject(options)) {
JsVar *c;
c = jsvObjectGetChild(options, "complete", false);
if (c) {
jsvObjectSetChild(pipe, "#oncomplete", c);
jsvUnLock(c);
}
c = jsvObjectGetChild(options, "end", false);
if (c) callEnd = jsvGetBoolAndUnLock(c);
c = jsvObjectGetChild(options, "chunkSize", false);
if (c) {
if (jsvIsNumeric(c) && jsvGetInteger(c)>0)
chunkSize = jsvGetInteger(c);
else
jsWarn("chunkSize must be an integer > 0");
jsvUnLock(c);
}
} else if (!jsvIsUndefined(options)) {
jsWarn("'options' must be an object, or undefined");
}
// set up our event listeners
jswrap_object_addEventListener(source, "close", jswrap_pipe_src_close_listener, JSWAT_VOID | (JSWAT_JSVAR << (JSWAT_BITS*1)));
jswrap_object_addEventListener(dest, "drain", jswrap_pipe_drain_listener, JSWAT_VOID | (JSWAT_JSVAR << (JSWAT_BITS*1)));
jswrap_object_addEventListener(dest, "close", jswrap_pipe_dst_close_listener, JSWAT_VOID | (JSWAT_JSVAR << (JSWAT_BITS*1)));
// set up the rest of the pipe
jsvUnLock(jsvObjectSetChild(pipe, "chunkSize", jsvNewFromInteger(chunkSize)));
jsvUnLock(jsvObjectSetChild(pipe, "end", jsvNewFromBool(callEnd)));
jsvUnLock(jsvAddNamedChild(pipe, position, "position"));
jsvUnLock(jsvAddNamedChild(pipe, source, "source"));
jsvUnLock(jsvAddNamedChild(pipe, dest, "destination"));
// add the pipe to our list
jsvArrayPush(arr, pipe);
} else {
jsExceptionHere(JSET_ERROR, "Destination object does not implement the required write(buffer, length, position) method.");
}
} else {
jsExceptionHere(JSET_ERROR, "Source object does not implement the required read(buffer, length, position) method.");
}
jsvUnLock(readFunc);
jsvUnLock(writeFunc);
}
jsvUnLock(arr);
jsvUnLock(pipe);
jsvUnLock(position);
}
/** Iterate over the contents of var, calling callback for each. Contents may be:
* * numeric -> output
* * a string -> output each character
* * array/arraybuffer -> call itself on each element
* * object -> call itself object.count times, on object.data
*/
bool jsvIterateCallback(JsVar *data, void (*callback)(int item, void *callbackData), void *callbackData) {
bool ok = true;
if (jsvIsNumeric(data)) {
callback((int)jsvGetInteger(data), callbackData);
} else if (jsvIsObject(data)) {
JsVar *countVar = jsvObjectGetChild(data, "count", 0);
JsVar *dataVar = jsvObjectGetChild(data, "data", 0);
if (countVar && dataVar && jsvIsNumeric(countVar)) {
int n = (int)jsvGetInteger(countVar);
while (ok && n-- > 0) {
ok = jsvIterateCallback(dataVar, callback, callbackData);
}
} else {
jsWarn("If specifying an object, it must be of the form {data : ..., count : N}");
}
jsvUnLock(countVar);
jsvUnLock(dataVar);
} else if (jsvIsString(data)) {
JsvStringIterator it;
jsvStringIteratorNew(&it, data, 0);
while (jsvStringIteratorHasChar(&it) && ok) {
char ch = jsvStringIteratorGetChar(&it);
callback(ch, callbackData);
jsvStringIteratorNext(&it);
}
jsvStringIteratorFree(&it);
} else if (jsvIsIterable(data)) {
JsvIterator it;
jsvIteratorNew(&it, data);
while (jsvIteratorHasElement(&it) && ok) {
JsVar *el = jsvIteratorGetValue(&it);
ok = jsvIterateCallback(el, callback, callbackData);
jsvUnLock(el);
jsvIteratorNext(&it);
}
jsvIteratorFree(&it);
} else {
jsWarn("Expecting a number or something iterable, got %t", data);
ok = false;
}
return ok;
}
/*JSON{
"type" : "method",
"class" : "String",
"name" : "lastIndexOf",
"generate_full" : "jswrap_string_indexOf(parent, substring, fromIndex, true)",
"params" : [
["substring","JsVar","The string to search for"],
["fromIndex","JsVar","Index to search from"]
],
"return" : ["int32","The index of the string, or -1 if not found"]
}
Return the last index of substring in this string, or -1 if not found
*/
int jswrap_string_indexOf(JsVar *parent, JsVar *substring, JsVar *fromIndex, bool lastIndexOf) {
if (!jsvIsString(parent)) return 0;
// slow, but simple!
substring = jsvAsString(substring, false);
if (!substring) return 0; // out of memory
int parentLength = (int)jsvGetStringLength(parent);
int subStringLength = (int)jsvGetStringLength(substring);
if (subStringLength > parentLength) {
jsvUnLock(substring);
return -1;
}
int lastPossibleSearch = parentLength - subStringLength;
int idx, dir, end;
if (!lastIndexOf) { // normal indexOf
dir = 1;
end = lastPossibleSearch+1;
idx = 0;
if (jsvIsNumeric(fromIndex)) {
idx = (int)jsvGetInteger(fromIndex);
if (idx<0) idx=0;
if (idx>end) idx=end;
}
} else {
dir = -1;
end = -1;
idx = lastPossibleSearch;
if (jsvIsNumeric(fromIndex)) {
idx = (int)jsvGetInteger(fromIndex);
if (idx<0) idx=0;
if (idx>lastPossibleSearch) idx=lastPossibleSearch;
}
}
for (;idx!=end;idx+=dir) {
if (jsvCompareString(parent, substring, (size_t)idx, 0, true)==0) {
jsvUnLock(substring);
return idx;
}
}
jsvUnLock(substring);
return -1;
}
/*JSON{ "type":"function", "name" : "parseInt",
"description" : "Convert a string representing a number into an integer",
"generate" : "jswrap_parseInt",
"params" : [ [ "string", "JsVar", ""],
[ "radix", "JsVar", "The Radix of the string (optional)"] ],
"return" : ["JsVar", "The integer value of the string (or NaN)"]
}*/
JsVar *jswrap_parseInt(JsVar *v, JsVar *radixVar) {
int radix = 0/*don't force radix*/;
if (jsvIsNumeric(radixVar))
radix = (int)jsvGetInteger(radixVar);
char buffer[JS_NUMBER_BUFFER_SIZE];
jsvGetString(v, buffer, JS_NUMBER_BUFFER_SIZE);
bool hasError;
JsVarInt i = stringToIntWithRadix(buffer, radix, &hasError);
if (hasError) return jsvNewFromFloat(NAN);
return jsvNewFromInteger(i);
}
/*JSON{
"type" : "method",
"class" : "String",
"name" : "endsWith",
"ifndef" : "SAVE_ON_FLASH",
"generate" : "jswrap_string_endsWith",
"params" : [
["searchString","JsVar","The string to search for"],
["length","JsVar","The 'end' of the string - if left off the actual length of the string is used"]
],
"return" : ["bool","`true` if the given characters are found at the end of the string, otherwise, `false`."]
}
*/
bool jswrap_string_endsWith(JsVar *parent, JsVar *search, JsVar *length) {
if (!jsvIsString(parent)) return false;
int position = jsvIsNumeric(length) ? jsvGetInteger(length) : (int)jsvGetStringLength(parent);
JsVar *searchStr = jsvAsString(search);
position -= jsvGetStringLength(searchStr);
bool match = false;
if (position >= 0 &&
jsvGetStringLength(searchStr)+position <= jsvGetStringLength(parent))
match = jsvCompareString(parent, searchStr, position,0,true)==0;
jsvUnLock(searchStr);
return match;
}
int jswrap_E_flashFatFS(JsVar* options) {
uint32_t addr = FS_FLASH_BASE;
uint16_t sectors = FS_SECTOR_COUNT;
uint8_t format = 0;
if (jsvIsObject(options)) {
JsVar *a = jsvObjectGetChild(options, "addr", false);
if (a) {
if (jsvIsNumeric(a) && jsvGetInteger(a)>0x100000)
addr = (uint32_t)jsvGetInteger(a);
}
JsVar *s = jsvObjectGetChild(options, "sectors", false);
if (s) {
if (jsvIsNumeric(s) && jsvGetInteger(s)>0)
sectors = (uint16_t)jsvGetInteger(s);
}
JsVar *f = jsvObjectGetChild(options, "format", false);
if (f) {
if (jsvIsBoolean(f))
format = jsvGetBool(f);
}
}
else if (!jsvIsUndefined(options)) {
jsExceptionHere(JSET_TYPEERROR, "'options' must be an object, or undefined");
}
uint8_t init=flashFatFsInit(addr, sectors);
if (init) {
if ( format ) {
uint8_t res = f_mount(&jsfsFAT, "", 0);
jsDebug("Formatting Flash");
res = f_mkfs("", 1, 0); // Super Floppy format, using all space (not partition table)
if (res != FR_OK) {
jsExceptionHere(JSET_INTERNALERROR, "Flash Formatting error:",res);
return false;
}
}
}
jsfsInit();
return true;
}
/*JSON{
"type" : "method",
"class" : "SPI",
"name" : "send4bit",
"generate" : "jswrap_spi_send4bit",
"params" : [
["data","JsVar","The data to send - either an integer, array, or string"],
["bit0","int32","The 4 bits to send for a 0 (MSB first)"],
["bit1","int32","The 4 bits to send for a 1 (MSB first)"],
["nss_pin","pin","An nSS pin - this will be lowered before SPI output and raised afterwards (optional). There will be a small delay between when this is lowered and when sending starts, and also between sending finishing and it being raised."]
]
}
Send data down SPI, using 4 bits for each 'real' bit (MSB first). This can be useful for faking one-wire style protocols
Sending multiple bytes in one call to send is preferable as they can then be transmitted end to end. Using multiple calls to send() will result in significantly slower transmission speeds.
*/
void jswrap_spi_send4bit(JsVar *parent, JsVar *srcdata, int bit0, int bit1, Pin nss_pin) {
NOT_USED(parent);
IOEventFlags device = jsiGetDeviceFromClass(parent);
if (!DEVICE_IS_SPI(device)) {
jsExceptionHere(JSET_ERROR, "SPI.send4bit only works on hardware SPI");
return;
}
jshSPISet16(device, true); // 16 bit output
if (bit0==0 && bit1==0) {
bit0 = 0x01;
bit1 = 0x03;
}
bit0 = bit0 & 0x0F;
bit1 = bit1 & 0x0F;
if (!jshIsDeviceInitialised(device)) {
JshSPIInfo inf;
jshSPIInitInfo(&inf);
jshSPISetup(device, &inf);
}
// we're just sending (no receive)
jshSPISetReceive(device, false);
// assert NSS
if (nss_pin!=PIN_UNDEFINED) jshPinOutput(nss_pin, false);
// send data
if (jsvIsNumeric(srcdata)) {
jsspiSend4bit(device, (unsigned char)jsvGetInteger(srcdata), bit0, bit1);
} else if (jsvIsIterable(srcdata)) {
jshInterruptOff();
JsvIterator it;
jsvIteratorNew(&it, srcdata);
while (jsvIteratorHasElement(&it)) {
unsigned char in = (unsigned char)jsvIteratorGetIntegerValue(&it);
jsspiSend4bit(device, in, bit0, bit1);
jsvIteratorNext(&it);
}
jsvIteratorFree(&it);
jshInterruptOn();
} else {
jsExceptionHere(JSET_ERROR, "Variable type %t not suited to transmit operation", srcdata);
}
jshSPIWait(device); // wait until SPI send finished and clear the RX buffer
// de-assert NSS
if (nss_pin!=PIN_UNDEFINED) jshPinOutput(nss_pin, true);
jshSPISet16(device, false); // back to 8 bit
}
JsVar *jswrap_typedarray_constructor(JsVarDataArrayBufferViewType type, JsVar *arr, JsVarInt byteOffset, JsVarInt length) {
JsVar *arrayBuffer = 0;
// Only allow use of byteOffset/length if we're passing an ArrayBuffer - NOT A VIEW.
bool copyData = false;
if (jsvIsArrayBuffer(arr) && arr->varData.arraybuffer.type==ARRAYBUFFERVIEW_ARRAYBUFFER) {
arrayBuffer = jsvLockAgain(arr);
} else if (jsvIsNumeric(arr)) {
length = jsvGetInteger(arr);
byteOffset = 0;
arrayBuffer = jswrap_arraybuffer_constructor((int)JSV_ARRAYBUFFER_GET_SIZE(type)*length);
} else if (jsvIsArray(arr) || jsvIsArrayBuffer(arr)) {
length = (JsVarInt)jsvGetLength(arr);
byteOffset = 0;
arrayBuffer = jswrap_arraybuffer_constructor((int)JSV_ARRAYBUFFER_GET_SIZE(type)*length);
copyData = true; // so later on we'll populate this
}
if (!arrayBuffer) {
jsExceptionHere(JSET_ERROR, "Unsupported first argument of type %t\n", arr);
return 0;
}
if (length==0) {
length = ((JsVarInt)jsvGetArrayBufferLength(arrayBuffer)-byteOffset) / (JsVarInt)JSV_ARRAYBUFFER_GET_SIZE(type);
if (length<0) length=0;
}
JsVar *typedArr = jsvNewWithFlags(JSV_ARRAYBUFFER);
if (typedArr) {
typedArr->varData.arraybuffer.type = type;
typedArr->varData.arraybuffer.byteOffset = (unsigned short)byteOffset;
typedArr->varData.arraybuffer.length = (unsigned short)length;
jsvSetFirstChild(typedArr, jsvGetRef(jsvRef(arrayBuffer)));
if (copyData) {
// if we were given an array, populate this ArrayBuffer
JsvIterator it;
jsvIteratorNew(&it, arr, JSIF_DEFINED_ARRAY_ElEMENTS);
while (jsvIteratorHasElement(&it)) {
JsVar *idx = jsvIteratorGetKey(&it);
if (jsvIsInt(idx)) {
JsVar *val = jsvIteratorGetValue(&it);
// TODO: This is horrible! We need to try and iterate properly...
jsvArrayBufferSet(typedArr, (size_t)jsvGetInteger(idx), val);
jsvUnLock(val);
}
jsvUnLock(idx);
jsvIteratorNext(&it);
}
jsvIteratorFree(&it);
}
}
jsvUnLock(arrayBuffer);
return typedArr;
}
/*JSON{
"type" : "method",
"class" : "Object",
"name" : "toString",
"generate" : "jswrap_object_toString",
"params" : [
["radix","JsVar","If the object is an integer, the radix (between 2 and 36) to use. NOTE: Setting a radix does not work on floating point numbers."]
],
"return" : ["JsVar","A String representing the object"]
}
Convert the Object to a string
*/
JsVar *jswrap_object_toString(JsVar *parent, JsVar *arg0) {
if (jsvIsInt(arg0) && jsvIsNumeric(parent)) {
JsVarInt radix = jsvGetInteger(arg0);
if (radix>=2 && radix<=36) {
char buf[JS_NUMBER_BUFFER_SIZE];
if (jsvIsInt(parent))
itostr(jsvGetInteger(parent), buf, (unsigned int)radix);
else
ftoa_bounded_extra(jsvGetFloat(parent), buf, sizeof(buf), (int)radix, -1);
return jsvNewFromString(buf);
}
}
return jsvAsString(parent, false);
}
void jswrap_io_poke(JsVarInt addr, JsVar *data, int wordSize) {
if (jsvIsNumeric(data)) {
_jswrap_io_poke(addr, (uint32_t)jsvGetInteger(data), wordSize);
} else if (jsvIsIterable(data)) {
JsvIterator it;
jsvIteratorNew(&it, data);
while (jsvIteratorHasElement(&it)) {
_jswrap_io_poke(addr, (uint32_t)jsvIteratorGetIntegerValue(&it), wordSize);
addr += wordSize;
jsvIteratorNext(&it);
}
jsvIteratorFree(&it);
}
}
/*JSON{ "type":"method", "class": "Serial", "name" : "write",
"description" : "Write a character or array of characters to the serial port - without a line feed",
"generate" : "jswrap_serial_write",
"params" : [ [ "data", "JsVar", "A byte, a string, or an array of bytes to write"] ]
}*/
void jswrap_serial_write(JsVar *parent, JsVar *data) {
NOT_USED(parent);
IOEventFlags device = jsiGetDeviceFromClass(parent);
if (jsvIsNumeric(data)) {
jshTransmit(device, (unsigned char)jsvGetInteger(data));
} else if (jsvIsIterable(data)) {
JsvIterator it;
jsvIteratorNew(&it, data);
while (jsvIteratorHasElement(&it)) {
jshTransmit(device, (unsigned char)jsvIteratorGetIntegerValue(&it));
jsvIteratorNext(&it);
}
jsvIteratorFree(&it);
} else {
jsWarn("Data supplied was not an integer - or iterable");
}
}
/*JSON{
"type" : "method",
"class" : "OneWire",
"name" : "read",
"generate" : "jswrap_onewire_read",
"params" : [["count","JsVar","(optional) The amount of bytes to read"]],
"return" : ["JsVar","The byte that was read, or a Uint8Array if count was specified and >=0"]
}
Read a byte
*/
JsVar *jswrap_onewire_read(JsVar *parent, JsVar *count) {
Pin pin = onewire_getpin(parent);
if (!jshIsPinValid(pin)) return 0;
if (jsvIsNumeric(count)) {
JsVarInt c = jsvGetInteger(count);
JsVar *arr = jsvNewTypedArray(ARRAYBUFFERVIEW_UINT8, c);
if (!arr) return 0;
JsvArrayBufferIterator it;
jsvArrayBufferIteratorNew(&it, arr, 0);
while (c--) {
jsvArrayBufferIteratorSetByteValue(&it, (char)OneWireRead(pin, 8));
jsvArrayBufferIteratorNext(&it);
}
jsvArrayBufferIteratorFree(&it);
return arr;
} else {
return jsvNewFromInteger(OneWireRead(pin, 8));
}
}
/*JSON{
"type" : "staticmethod",
"class" : "JSON",
"name" : "stringify",
"generate" : "jswrap_json_stringify",
"params" : [
["data","JsVar","The data to be converted to a JSON string"],
["replacer","JsVar","This value is ignored"],
["space","JsVar","The number of spaces to use for padding, a string, or null/undefined for no whitespace "]
],
"return" : ["JsVar","A JSON string"]
}
Convert the given object into a JSON string which can subsequently be parsed with JSON.parse or eval.
**Note:** This differs from JavaScript's standard `JSON.stringify` in that:
* The `replacer` argument is ignored
* Typed arrays like `new Uint8Array(5)` will be dumped as if they were arrays, not as if they were objects (since it is more compact)
*/
JsVar *jswrap_json_stringify(JsVar *v, JsVar *replacer, JsVar *space) {
NOT_USED(replacer);
JSONFlags flags = JSON_IGNORE_FUNCTIONS|JSON_NO_UNDEFINED|JSON_ARRAYBUFFER_AS_ARRAY;
JsVar *result = jsvNewFromEmptyString();
if (result) {// could be out of memory
char whitespace[11] = "";
if (jsvIsUndefined(space) || jsvIsNull(space)) {
// nothing
} else if (jsvIsNumeric(space)) {
unsigned int s = (unsigned int)jsvGetInteger(space);
if (s>10) s=10;
whitespace[s] = 0;
while (s) whitespace[--s]=' ';
} else {
jsvGetString(space, whitespace, sizeof(whitespace));
}
if (strlen(whitespace)) flags |= JSON_ALL_NEWLINES|JSON_PRETTY;
jsfGetJSONWhitespace(v, result, flags, whitespace);
}
return result;
}
/*JSON{
"type" : "constructor",
"class" : "Array",
"name" : "Array",
"generate" : "jswrap_array_constructor",
"params" : [
["args","JsVarArray","The length of the array OR any number of items to add to the array"]
],
"return" : ["JsVar","An Array"]
}
Create an Array. Either give it one integer argument (>=0) which is the length of the array, or any number of arguments
*/
JsVar *jswrap_array_constructor(JsVar *args) {
assert(args);
if (jsvGetArrayLength(args)==1) {
JsVar *firstArg = jsvSkipNameAndUnLock(jsvGetArrayItem(args,0));
if (jsvIsNumeric(firstArg)) {
JsVarFloat f = jsvGetFloat(firstArg);
JsVarInt count = jsvGetInteger(firstArg);
jsvUnLock(firstArg);
if (f!=count || count<0) {
jsExceptionHere(JSET_ERROR, "Invalid array length");
return 0;
} else {
JsVar *arr = jsvNewEmptyArray();
if (!arr) return 0; // out of memory
jsvSetArrayLength(arr, count, false);
return arr;
}
} else {
jsvUnLock(firstArg);
}
}
// Otherwise, we just return the array!
return jsvLockAgain(args);
}
/*JSON{
"type" : "function",
"name" : "digitalPulse",
"generate" : "jswrap_io_digitalPulse",
"params" : [
["pin","pin","The pin to use"],
["value","bool","Whether to pulse high (true) or low (false)"],
["time","JsVar","A time in milliseconds, or an array of times (in which case a square wave will be output starting with a pulse of 'value')"]
]
}
Pulse the pin with the value for the given time in milliseconds. It uses a hardware timer to produce accurate pulses, and returns immediately (before the pulse has finished). Use `digitalPulse(A0,1,0)` to wait until a previous pulse has finished.
eg. `digitalPulse(A0,1,5);` pulses A0 high for 5ms. `digitalPulse(A0,1,[5,2,4]);` pulses A0 high for 5ms, low for 2ms, and high for 4ms
**Note:** if you didn't call `pinMode` beforehand then this function will also reset pin's state to `"output"`
digitalPulse is for SHORT pulses that need to be very accurate. If you're doing anything over a few milliseconds, use setTimeout instead.
*/
void jswrap_io_digitalPulse(Pin pin, bool value, JsVar *times) {
if (jsvIsNumeric(times)) {
JsVarFloat time = jsvGetFloat(times);
if (time<0 || isnan(time)) {
jsExceptionHere(JSET_ERROR, "Pulse Time given for digitalPulse is less than 0, or not a number");
} else {
jshPinPulse(pin, value, time);
}
} else if (jsvIsIterable(times)) {
// iterable, so output a square wave
JsvIterator it;
jsvIteratorNew(&it, times);
while (jsvIteratorHasElement(&it)) {
JsVarFloat time = jsvIteratorGetFloatValue(&it);
if (time>=0 && !isnan(time))
jshPinPulse(pin, value, time);
value = !value;
jsvIteratorNext(&it);
}
jsvIteratorFree(&it);
} else {
jsExceptionHere(JSET_ERROR, "Expecting a number or array, got %t", times);
}
}
/**
* \brief Iterate over the contents of the content of a variable, calling callback for each.
* Contents may be:
* * numeric -> output
* * a string -> output each character
* * array/arraybuffer -> call itself on each element
* object -> call itself object.count times, on object.data
*/
bool jsvIterateCallback(
JsVar *data, // The data to iterate over.
void (*callback)(int item, void *callbackData), // The callback function invoke.
void *callbackData // Data to be passed to the callback function
) {
bool ok = true;
// Handle the data being a single numeric.
if (jsvIsNumeric(data)) {
callback((int)jsvGetInteger(data), callbackData);
}
// Handle the data being an object.
else if (jsvIsObject(data)) {
JsVar *countVar = jsvObjectGetChild(data, "count", 0);
JsVar *dataVar = jsvObjectGetChild(data, "data", 0);
if (countVar && dataVar && jsvIsNumeric(countVar)) {
int n = (int)jsvGetInteger(countVar);
while (ok && n-- > 0) {
ok = jsvIterateCallback(dataVar, callback, callbackData);
}
} else {
jsWarn("If specifying an object, it must be of the form {data : ..., count : N}");
}
jsvUnLock2(countVar, dataVar);
}
// Handle the data being a string
else if (jsvIsString(data)) {
JsvStringIterator it;
jsvStringIteratorNew(&it, data, 0);
while (jsvStringIteratorHasChar(&it) && ok) {
char ch = jsvStringIteratorGetChar(&it);
callback(ch, callbackData);
jsvStringIteratorNext(&it);
}
jsvStringIteratorFree(&it);
}
// Handle the data being an array buffer
else if (jsvIsArrayBuffer(data)) {
JsvArrayBufferIterator it;
jsvArrayBufferIteratorNew(&it, data, 0);
if (JSV_ARRAYBUFFER_GET_SIZE(it.type) == 1 && !JSV_ARRAYBUFFER_IS_SIGNED(it.type)) {
// faster for single byte arrays.
while (jsvArrayBufferIteratorHasElement(&it)) {
callback((int)(unsigned char)jsvStringIteratorGetChar(&it.it), callbackData);
jsvArrayBufferIteratorNext(&it);
}
} else {
while (jsvArrayBufferIteratorHasElement(&it)) {
callback((int)jsvArrayBufferIteratorGetIntegerValue(&it), callbackData);
jsvArrayBufferIteratorNext(&it);
}
}
jsvArrayBufferIteratorFree(&it);
}
// Handle the data being iterable
else if (jsvIsIterable(data)) {
JsvIterator it;
jsvIteratorNew(&it, data);
while (jsvIteratorHasElement(&it) && ok) {
JsVar *el = jsvIteratorGetValue(&it);
ok = jsvIterateCallback(el, callback, callbackData);
jsvUnLock(el);
jsvIteratorNext(&it);
}
jsvIteratorFree(&it);
} else {
jsWarn("Expecting a number or something iterable, got %t", data);
ok = false;
}
return ok;
}
/**
Iterate over the contents of the content of a variable, calling callback for each.
Contents may be:
* numeric -> output
* a string -> output each character
* array/arraybuffer -> call itself on each element
* {data:..., count:...} -> call itself object.count times, on object.data
* {callback:...} -> call the given function, call itself on return value
*/
bool jsvIterateCallback(
JsVar *data,
jsvIterateCallbackFn callback,
void *callbackData
) {
bool ok = true;
// Handle the data being a single numeric.
if (jsvIsNumeric(data)) {
callback((int)jsvGetInteger(data), callbackData);
}
// Handle the data being an object.
else if (jsvIsObject(data)) {
JsVar *callbackVar = jsvObjectGetChild(data, "callback", 0);
if (jsvIsFunction(callbackVar)) {
JsVar *result = jspExecuteFunction(callbackVar,0,0,NULL);
jsvUnLock(callbackVar);
if (result) {
bool r = jsvIterateCallback(result, callback, callbackData);
jsvUnLock(result);
return r;
}
return true;
}
jsvUnLock(callbackVar);
JsVar *countVar = jsvObjectGetChild(data, "count", 0);
JsVar *dataVar = jsvObjectGetChild(data, "data", 0);
if (countVar && dataVar && jsvIsNumeric(countVar)) {
int n = (int)jsvGetInteger(countVar);
while (ok && n-- > 0) {
ok = jsvIterateCallback(dataVar, callback, callbackData);
}
} else {
jsExceptionHere(JSET_TYPEERROR, "If specifying an object, it must be of the form {data : ..., count : N} or {callback : fn} - got %j", data);
ok = false;
}
jsvUnLock2(countVar, dataVar);
}
// Handle the data being a string
else if (jsvIsString(data)) {
JsvStringIterator it;
jsvStringIteratorNew(&it, data, 0);
while (jsvStringIteratorHasChar(&it) && ok) {
char ch = jsvStringIteratorGetChar(&it);
callback(ch, callbackData);
jsvStringIteratorNext(&it);
}
jsvStringIteratorFree(&it);
}
// Handle the data being an array buffer
else if (jsvIsArrayBuffer(data)) {
JsvArrayBufferIterator it;
jsvArrayBufferIteratorNew(&it, data, 0);
if (JSV_ARRAYBUFFER_GET_SIZE(it.type) == 1 && !JSV_ARRAYBUFFER_IS_SIGNED(it.type)) {
JsvStringIterator *sit = &it.it;
// faster for single byte arrays - read using the string iterator.
while (jsvStringIteratorHasChar(sit)) {
callback((int)(unsigned char)jsvStringIteratorGetChar(sit), callbackData);
jsvStringIteratorNextInline(sit);
}
} else {
while (jsvArrayBufferIteratorHasElement(&it)) {
callback((int)jsvArrayBufferIteratorGetIntegerValue(&it), callbackData);
jsvArrayBufferIteratorNext(&it);
}
}
jsvArrayBufferIteratorFree(&it);
}
// Handle the data being iterable
else if (jsvIsIterable(data)) {
JsvIterator it;
jsvIteratorNew(&it, data, JSIF_EVERY_ARRAY_ELEMENT);
while (jsvIteratorHasElement(&it) && ok) {
JsVar *el = jsvIteratorGetValue(&it);
ok = jsvIterateCallback(el, callback, callbackData);
jsvUnLock(el);
jsvIteratorNext(&it);
}
jsvIteratorFree(&it);
} else {
jsExceptionHere(JSET_TYPEERROR, "Expecting a number or something iterable, got %t", data);
ok = false;
}
return ok;
}
/**
* Send data through SPI.
* The data can be in a variety of formats including:
* * `numeric` - A single byte is transmitted.
* * `string` - Each character in the string is transmitted.
* * `iterable` - An iterable object is transmitted.
* \return the Received bytes (MISO). This is byte array.
*/
JsVar *jswrap_spi_send(
JsVar *parent, //!< A description of the SPI device to send data through.
JsVar *srcdata, //!< The data to send through SPI.
Pin nss_pin //!< The pin to toggle low then high (CS)
) {
// Debug
// jsiConsolePrintf("jswrap_spi_send called: parent=%j, srcdata=%j, nss_pin=%p\n", parent, srcdata, nss_pin);
NOT_USED(parent);
IOEventFlags device = jsiGetDeviceFromClass(parent);
jswrap_spi_send_data data;
if (!jsspiGetSendFunction(parent, &data.spiSend, &data.spiSendData))
return 0;
JsVar *dst = 0;
// we're sending and receiving
if (DEVICE_IS_SPI(device)) jshSPISetReceive(device, true);
// assert NSS
if (nss_pin!=PIN_UNDEFINED) jshPinOutput(nss_pin, false);
// Now that we are setup, we can send the data.
// Handle the data being a single byte value
if (jsvIsNumeric(srcdata)) {
int r = data.spiSend((unsigned char)jsvGetInteger(srcdata), &data.spiSendData);
if (r<0) r = data.spiSend(-1, &data.spiSendData);
dst = jsvNewFromInteger(r); // retrieve the byte (no send!)
}
// Handle the data being a string
else if (jsvIsString(srcdata)) {
dst = jsvNewFromEmptyString();
JsvStringIterator it;
jsvStringIteratorNew(&it, srcdata, 0);
int incount = 0, outcount = 0;
while (jsvStringIteratorHasChar(&it) && !jspIsInterrupted()) {
unsigned char in = (unsigned char)jsvStringIteratorGetChar(&it);
incount++;
int out = data.spiSend(in, &data.spiSendData);
if (out>=0) {
outcount++;
char outc = (char)out;
jsvAppendStringBuf(dst, (char*)&outc, 1);
}
jsvStringIteratorNext(&it);
}
jsvStringIteratorFree(&it);
// finally add the remaining bytes (no send!)
while (outcount < incount && !jspIsInterrupted()) {
outcount++;
unsigned char out = (unsigned char)data.spiSend(-1, &data.spiSendData);
jsvAppendStringBuf(dst, (char*)&out, 1);
}
}
// Handle the data being an iterable.
else {
int nBytes = jsvIterateCallbackCount(srcdata);
dst = jsvNewTypedArray(ARRAYBUFFERVIEW_UINT8, nBytes);
if (dst) {
data.rxAmt = data.txAmt = 0;
jsvArrayBufferIteratorNew(&data.it, dst, 0);
// Write data
jsvIterateCallback(srcdata, (void (*)(int, void *))jswrap_spi_send_cb, &data);
// Wait until SPI send is finished, and flush data
while (data.rxAmt < data.txAmt && !jspIsInterrupted())
jswrap_spi_send_cb(-1, &data);
jsvArrayBufferIteratorFree(&data.it);
}
}
// de-assert NSS
if (nss_pin!=PIN_UNDEFINED) jshPinOutput(nss_pin, true);
return dst;
}
void jsfGetJSONWithCallback(JsVar *var, JSONFlags flags, const char *whitespace, vcbprintf_callback user_callback, void *user_data) {
JSONFlags nflags = flags + JSON_INDENT; // if we add a newline, make sure we indent any subsequent JSON more
if (!whitespace) whitespace=" ";
if (jsvIsUndefined(var)) {
cbprintf(user_callback, user_data, "undefined");
} else {
// Use IS_RECURSING flag to stop recursion
if (var->flags & JSV_IS_RECURSING) {
cbprintf(user_callback, user_data, " ... ");
return;
}
var->flags |= JSV_IS_RECURSING;
if (jsvIsArray(var)) {
JsVarInt length = jsvGetArrayLength(var);
bool limited = (flags&JSON_LIMIT) && (length>(JsVarInt)JSON_LIMIT_AMOUNT);
bool needNewLine = false;
cbprintf(user_callback, user_data, (flags&JSON_PRETTY)?"[ ":"[");
JsVarInt lastIndex = -1;
bool numeric = true;
bool first = true;
JsvObjectIterator it;
jsvObjectIteratorNew(&it, var);
while (lastIndex+1<length && numeric && !jspIsInterrupted()) {
JsVar *key = jsvObjectIteratorGetKey(&it);
if (!jsvObjectIteratorHasValue(&it) || jsvIsNumeric(key)) {
JsVarInt index = jsvObjectIteratorHasValue(&it) ? jsvGetInteger(key) : length-1;
JsVar *item = jsvObjectIteratorGetValue(&it);
while (lastIndex < index) {
lastIndex++;
if (!limited || lastIndex<(JsVarInt)JSON_LIMITED_AMOUNT || lastIndex>=length-(JsVarInt)JSON_LIMITED_AMOUNT) {
if (!first) cbprintf(user_callback, user_data, (flags&JSON_PRETTY)?", ":",");
first = false;
if (limited && lastIndex==length-(JsVarInt)JSON_LIMITED_AMOUNT) cbprintf(user_callback, user_data, JSON_LIMIT_TEXT);
bool newNeedsNewLine = ((flags&JSON_SOME_NEWLINES) && jsonNeedsNewLine(item));
if (flags&JSON_ALL_NEWLINES) {
needNewLine = true;
newNeedsNewLine = true;
}
if (needNewLine || newNeedsNewLine) {
jsonNewLine(nflags, whitespace, user_callback, user_data);
needNewLine = false;
}
if (lastIndex == index)
jsfGetJSONWithCallback(item, nflags, whitespace, user_callback, user_data);
else
cbprintf(user_callback, user_data, (flags&JSON_NO_UNDEFINED)?"null":"undefined");
needNewLine = newNeedsNewLine;
}
}
jsvUnLock(item);
jsvObjectIteratorNext(&it);
} else {
numeric = false;
}
jsvUnLock(key);
}
// non-numeric - but NOT for standard JSON
if ((flags&JSON_PRETTY))
jsfGetJSONForObjectItWithCallback(&it, flags, whitespace, nflags, user_callback, user_data, first);
jsvObjectIteratorFree(&it);
if (needNewLine) jsonNewLine(flags, whitespace, user_callback, user_data);
cbprintf(user_callback, user_data, (flags&JSON_PRETTY)?" ]":"]");
} else if (jsvIsArrayBuffer(var)) {
JsvArrayBufferIterator it;
bool allZero = true;
jsvArrayBufferIteratorNew(&it, var, 0);
while (jsvArrayBufferIteratorHasElement(&it)) {
if (jsvArrayBufferIteratorGetFloatValue(&it)!=0)
allZero = false;
jsvArrayBufferIteratorNext(&it);
}
jsvArrayBufferIteratorFree(&it);
bool asArray = flags&JSON_ARRAYBUFFER_AS_ARRAY;
if (allZero && !asArray) {
cbprintf(user_callback, user_data, "new %s(%d)", jswGetBasicObjectName(var), jsvGetArrayBufferLength(var));
} else {
const char *aname = jswGetBasicObjectName(var);
/* You can't do `new ArrayBuffer([1,2,3])` so we have to output
* `new Uint8Array([1,2,3]).buffer`! */
bool isBasicArrayBuffer = strcmp(aname,"ArrayBuffer")==0;
if (isBasicArrayBuffer) {
aname="Uint8Array";
}
cbprintf(user_callback, user_data, asArray?"[":"new %s([", aname);
if (flags&JSON_ALL_NEWLINES) jsonNewLine(nflags, whitespace, user_callback, user_data);
size_t length = jsvGetArrayBufferLength(var);
bool limited = (flags&JSON_LIMIT) && (length>JSON_LIMIT_AMOUNT);
// no newlines needed for array buffers as they only contain simple stuff
jsvArrayBufferIteratorNew(&it, var, 0);
while (jsvArrayBufferIteratorHasElement(&it) && !jspIsInterrupted()) {
if (!limited || it.index<JSON_LIMITED_AMOUNT || it.index>=length-JSON_LIMITED_AMOUNT) {
if (it.index>0) cbprintf(user_callback, user_data, (flags&JSON_PRETTY)?", ":",");
if (flags&JSON_ALL_NEWLINES) jsonNewLine(nflags, whitespace, user_callback, user_data);
if (limited && it.index==length-JSON_LIMITED_AMOUNT) cbprintf(user_callback, user_data, JSON_LIMIT_TEXT);
JsVar *item = jsvArrayBufferIteratorGetValue(&it);
jsfGetJSONWithCallback(item, nflags, whitespace, user_callback, user_data);
jsvUnLock(item);
}
jsvArrayBufferIteratorNext(&it);
}
if (flags&JSON_ALL_NEWLINES) jsonNewLine(flags, whitespace, user_callback, user_data);
jsvArrayBufferIteratorFree(&it);
cbprintf(user_callback, user_data, asArray?"]":"])");
if (isBasicArrayBuffer && !asArray) cbprintf(user_callback, user_data, ".buffer");
}
} else if (jsvIsObject(var)) {
IOEventFlags device = (flags & JSON_SHOW_DEVICES) ? jsiGetDeviceFromClass(var) : EV_NONE;
if (device!=EV_NONE) {
cbprintf(user_callback, user_data, "%s", jshGetDeviceString(device));
} else {
bool showContents = true;
if (flags & JSON_SHOW_OBJECT_NAMES) {
JsVar *proto = jsvObjectGetChild(var, JSPARSE_INHERITS_VAR, 0);
if (jsvHasChildren(proto)) {
JsVar *constr = jsvObjectGetChild(proto, JSPARSE_CONSTRUCTOR_VAR, 0);
if (constr) {
JsVar *p = jsvGetIndexOf(execInfo.root, constr, true);
if (p) cbprintf(user_callback, user_data, "%v: ", p);
jsvUnLock2(p,constr);
/* We had the constructor - now if there was a non-default toString function
* we'll execute it and print the result */
JsVar *toStringFn = jspGetNamedField(var, "toString", false);
if (toStringFn && toStringFn->varData.native.ptr != (void (*)(void))jswrap_object_toString) {
// Function found and it's not the default one - execute it
JsVar *result = jspExecuteFunction(toStringFn,var,0,0);
cbprintf(user_callback, user_data, "%v", result);
jsvUnLock(result);
showContents = false; // we already printed something
}
jsvUnLock(toStringFn);
}
}
jsvUnLock(proto);
}
if (showContents) {
JsvObjectIterator it;
jsvObjectIteratorNew(&it, var);
cbprintf(user_callback, user_data, (flags&JSON_PRETTY)?"{ ":"{");
bool needNewLine = jsfGetJSONForObjectItWithCallback(&it, flags, whitespace, nflags, user_callback, user_data, true);
jsvObjectIteratorFree(&it);
if (needNewLine) jsonNewLine(flags, whitespace, user_callback, user_data);
cbprintf(user_callback, user_data, (flags&JSON_PRETTY)?" }":"}");
}
}
} else if (jsvIsFunction(var)) {
if (flags & JSON_IGNORE_FUNCTIONS) {
cbprintf(user_callback, user_data, "undefined");
} else {
cbprintf(user_callback, user_data, "function ");
jsfGetJSONForFunctionWithCallback(var, nflags, user_callback, user_data);
}
} else if (jsvIsString(var) && !jsvIsName(var)) {
if ((flags&JSON_LIMIT) && jsvGetStringLength(var)>JSON_LIMIT_STRING_AMOUNT) {
// if the string is too big, split it and put dots in the middle
JsVar *var1 = jsvNewFromStringVar(var, 0, JSON_LIMITED_STRING_AMOUNT);
JsVar *var2 = jsvNewFromStringVar(var, jsvGetStringLength(var)-JSON_LIMITED_STRING_AMOUNT, JSON_LIMITED_STRING_AMOUNT);
cbprintf(user_callback, user_data, "%q%s%q", var1, JSON_LIMIT_TEXT, var2);
jsvUnLock2(var1, var2);
} else {
cbprintf(user_callback, user_data, "%q", var);
}
} else {
cbprintf(user_callback, user_data, "%v", var);
}
var->flags &= ~JSV_IS_RECURSING;
}
}
bool jsonNeedsNewLine(JsVar *v) {
return !(jsvIsUndefined(v) || jsvIsNull(v) || jsvIsNumeric(v));
// we're skipping strings here because they're usually long and want printing on multiple lines
}
JsVar *jswrap_spi_send(JsVar *parent, JsVar *srcdata, Pin nss_pin) {
NOT_USED(parent);
IOEventFlags device = jsiGetDeviceFromClass(parent);
jswrap_spi_send_data data;
if (!jsspiGetSendFunction(parent, &data.spiSend, &data.spiSendData))
return 0;
JsVar *dst = 0;
// we're sending and receiving
if (DEVICE_IS_SPI(device)) jshSPISetReceive(device, true);
// assert NSS
if (nss_pin!=PIN_UNDEFINED) jshPinOutput(nss_pin, false);
// send data
if (jsvIsNumeric(srcdata)) {
int r = data.spiSend((unsigned char)jsvGetInteger(srcdata), &data.spiSendData);
if (r<0) r = data.spiSend(-1, &data.spiSendData);
dst = jsvNewFromInteger(r); // retrieve the byte (no send!)
} else if (jsvIsString(srcdata)) {
dst = jsvNewFromEmptyString();
JsvStringIterator it;
jsvStringIteratorNew(&it, srcdata, 0);
int incount = 0, outcount = 0;
while (jsvStringIteratorHasChar(&it) && !jspIsInterrupted()) {
unsigned char in = (unsigned char)jsvStringIteratorGetChar(&it);
incount++;
int out = data.spiSend(in, &data.spiSendData);
if (out>=0) {
outcount++;
char outc = (char)out;
jsvAppendStringBuf(dst, (char*)&outc, 1);
}
jsvStringIteratorNext(&it);
}
jsvStringIteratorFree(&it);
// finally add the remaining bytes (no send!)
while (outcount < incount && !jspIsInterrupted()) {
outcount++;
unsigned char out = (unsigned char)data.spiSend(-1, &data.spiSendData);
jsvAppendStringBuf(dst, (char*)&out, 1);
}
} else {
int nBytes = jsvIterateCallbackCount(srcdata);
dst = jsvNewTypedArray(ARRAYBUFFERVIEW_UINT8, nBytes);
if (dst) {
data.rxAmt = data.txAmt = 0;
jsvArrayBufferIteratorNew(&data.it, dst, 0);
// Write data
jsvIterateCallback(srcdata, (void (*)(int, void *))jswrap_spi_send_cb, &data);
// Wait until SPI send is finished, and flush data
while (data.rxAmt < data.txAmt && !jspIsInterrupted())
jswrap_spi_send_cb(-1, &data);
jsvArrayBufferIteratorFree(&data.it);
}
}
// de-assert NSS
if (nss_pin!=PIN_UNDEFINED) jshPinOutput(nss_pin, true);
return dst;
}
