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initial implementation of control transfer in/out

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cTn 2014-06-08 17:42:02 +02:00
parent c4e1cf2600
commit 8231c60b3c
1 changed files with 33 additions and 2 deletions
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35
js/stm32dfu.js
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@ -11,7 +11,7 @@ var STM32DFU_protocol = function() {
this.handle = null; // connection handle this.handle = null; // connection handle
this.command = { this.request = {
DETACH: 0x00, // OUT, Requests the device to leave DFU mode and enter the application. DETACH: 0x00, // OUT, Requests the device to leave DFU mode and enter the application.
DNLOAD: 0x01, // OUT, Requests data transfer from Host to the device in order to load them into device internal Flash. Includes also erase commands DNLOAD: 0x01, // OUT, Requests data transfer from Host to the device in order to load them into device internal Flash. Includes also erase commands
UPLOAD: 0x02, // IN, Requests data transfer from device to Host in order to load content of device internal Flash into a Host file. UPLOAD: 0x02, // IN, Requests data transfer from device to Host in order to load content of device internal Flash into a Host file.
@ -75,7 +75,38 @@ STM32DFU_protocol.prototype.resetDevice = function(callback) {
}); });
}; };
STM32DFU_protocol.prototype.controlTransfer = function() { STM32DFU_protocol.prototype.controlTransfer = function(direction, request, value, interface, length, data, callback) {
if (direction == 'in') {
// data is ignored
chrome.usb.controlTransfer(this.handle, {
'direction': 'in',
'recipient': 'interface',
'requestType': 'class',
'request': request,
'value': value,
'index': interface,
'length': length
}, callback);
} else {
// length is ignored
if (data) {
var arrayBuf = new ArrayBuffer(data.length);
var arrayBufView = new Uint8Array(arrayBuf);
arrayBufView.set(data);
} else {
var arrayBuf = new ArrayBuffer(0);
}
chrome.usb.controlTransfer(this.handle, {
'direction': 'out',
'recipient': 'interface',
'requestType': 'class',
'request': request,
'value': value,
'index': interface,
'data': arrayBuf
}, callback);
}
}; };
// initialize object // initialize object