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Use wTransferSize from DFU functional descriptor for writing/reading

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This commit is contained in:
jflyper 2018-12-06 15:28:59 +09:00
parent 6f314dd1bb
commit 99ab8a945c
1 changed files with 41 additions and 3 deletions
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42
src/js/protocols/stm32usbdfu.js
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@ -287,6 +287,38 @@ STM32DFU_protocol.prototype.getInterfaceDescriptor = function (_interface, callb
}); });
} }
STM32DFU_protocol.prototype.getFunctionalDescriptor = function (_interface, callback) {
var self = this;
chrome.usb.controlTransfer(this.handle, {
'direction': 'in',
'recipient': 'interface',
'requestType': 'standard',
'request': 6,
'value': 0x2100,
'index': 0,
'length': 255
}, function (result) {
if(self.checkChromeError()) {
console.log('USB transfer failed! ' + result.resultCode);
callback({}, result.resultCode);
return;
}
var buf = new Uint8Array(result.data);
var descriptor = {
'bLength': buf[0],
'bDescriptorType': buf[1],
'bmAttributes': buf[2],
'wDetachTimeOut': (buf[4] << 8)|buf[3],
'wTransferSize': (buf[6] << 8)|buf[5],
'bcdDFUVersion': buf[7]
};
callback(descriptor, result.resultCode);
});
}
STM32DFU_protocol.prototype.getChipInfo = function (_interface, callback) { STM32DFU_protocol.prototype.getChipInfo = function (_interface, callback) {
var self = this; var self = this;
@ -532,6 +564,12 @@ STM32DFU_protocol.prototype.upload_procedure = function (step) {
} }
} }
}); });
self.getFunctionalDescriptor(0, function (descriptor, resultCode) {
self.transferSize = resultCode ? 2048 : descriptor.wTransferSize;
console.log('Using transfer size: ' + self.transferSize);
});
break; break;
case 1: case 1:
if (typeof self.chipInfo.option_bytes === "undefined") { if (typeof self.chipInfo.option_bytes === "undefined") {
@ -764,7 +802,7 @@ STM32DFU_protocol.prototype.upload_procedure = function (step) {
var write = function () { var write = function () {
if (bytes_flashed < self.hex.data[flashing_block].bytes) { if (bytes_flashed < self.hex.data[flashing_block].bytes) {
var bytes_to_write = ((bytes_flashed + 2048) <= self.hex.data[flashing_block].bytes) ? 2048 : (self.hex.data[flashing_block].bytes - bytes_flashed); var bytes_to_write = ((bytes_flashed + self.transferSize) <= self.hex.data[flashing_block].bytes) ? self.transferSize : (self.hex.data[flashing_block].bytes - bytes_flashed);
var data_to_flash = self.hex.data[flashing_block].data.slice(bytes_flashed, bytes_flashed + bytes_to_write); var data_to_flash = self.hex.data[flashing_block].data.slice(bytes_flashed, bytes_flashed + bytes_to_write);
@ -848,7 +886,7 @@ STM32DFU_protocol.prototype.upload_procedure = function (step) {
var read = function () { var read = function () {
if (bytes_verified < self.hex.data[reading_block].bytes) { if (bytes_verified < self.hex.data[reading_block].bytes) {
var bytes_to_read = ((bytes_verified + 2048) <= self.hex.data[reading_block].bytes) ? 2048 : (self.hex.data[reading_block].bytes - bytes_verified); var bytes_to_read = ((bytes_verified + self.transferSize) <= self.hex.data[reading_block].bytes) ? self.transferSize : (self.hex.data[reading_block].bytes - bytes_verified);
self.controlTransfer('in', self.request.UPLOAD, wBlockNum++, 0, bytes_to_read, 0, function (data, code) { self.controlTransfer('in', self.request.UPLOAD, wBlockNum++, 0, bytes_to_read, 0, function (data, code) {
for (var i = 0; i < data.length; i++) { for (var i = 0; i < data.length; i++) {