protected internal virtual string imm_json_get_key(byte[] json, string key)
{
YJSONObject obj = new YJSONObject(YAPI.DefaultEncoding.GetString(json));
obj.parse();
if (obj.has(key))
{
string val = obj.getString(key);
if (val == null)
{
val = obj.ToString();
}
return(val);
}
throw new YAPI_Exception(YAPI.INVALID_ARGUMENT, "No key " + key + "in JSON struct");
}
internal override async Task <List <string> > firmwareUpdate(string serial, YFirmwareFile firmware, byte[] settings,
UpdateProgress progress)
{
bool use_self_flash = false;
string baseurl = "";
bool need_reboot = true;
if (_serial.StartsWith("VIRTHUB", StringComparison.Ordinal))
{
use_self_flash = false;
}
else if (serial.Equals(_serial))
{
use_self_flash = true;
}
else
{
// check if subdevice support self flashing
try {
await _notificationHandler.hubRequestSync("GET /bySerial/" + serial + "/flash.json?a=state", null,
YIO_DEFAULT_TCP_TIMEOUT);
baseurl = "/bySerial/" + serial;
use_self_flash = true;
} catch (YAPI_Exception) { }
}
//5% -> 10%
await progress(5, "Enter in bootloader");
List <string> bootloaders = await getBootloaders();
bool is_shield = serial.StartsWith("YHUBSHL1", StringComparison.Ordinal);
foreach (string bl in bootloaders)
{
if (bl.Equals(serial))
{
need_reboot = false;
}
else if (is_shield)
{
if (bl.StartsWith("YHUBSHL1", StringComparison.Ordinal))
{
throw new YAPI_Exception(YAPI.IO_ERROR, "Only one YoctoHub-Shield is allowed in update mode");
}
}
}
if (!use_self_flash && need_reboot && bootloaders.Count >= 4)
{
throw new YAPI_Exception(YAPI.IO_ERROR, "Too many devices in update mode");
}
// ensure flash engine is not busy
byte[] bytes = await _notificationHandler.hubRequestSync("GET" + baseurl + "/flash.json?a=state", null,
YIO_DEFAULT_TCP_TIMEOUT);
string uploadstate = YAPI.DefaultEncoding.GetString(bytes);
YJSONObject uploadres = new YJSONObject(uploadstate);
uploadres.parse();
string state = uploadres.getYJSONString("state").getString();
if (state.Equals("uploading") || state.Equals("flashing"))
{
throw new YAPI_Exception(YAPI.IO_ERROR, "Cannot start firmware update: busy (" + state + ")");
}
// start firmware upload
//10% -> 40%
await progress(10, "Send firmware file");
byte[] head_body = YDevice.imm_formatHTTPUpload("firmware", firmware.Data);
await _notificationHandler.hubRequestSync("POST " + baseurl + "/upload.html", head_body, 0);
//check firmware upload result
bytes = await _notificationHandler.hubRequestSync("GET " + baseurl + "/flash.json?a=state", null,
YIO_10_MINUTES_TCP_TIMEOUT);
string uploadresstr = YAPI.DefaultEncoding.GetString(bytes);
uploadres = new YJSONObject(uploadresstr);
uploadres.parse();
state = uploadres.getString("state");
if (state != "valid")
{
throw new YAPI_Exception(YAPI.IO_ERROR, "Upload of firmware failed: invalid firmware(" + state + ")");
}
if (uploadres.getInt("progress") != 100)
{
throw new YAPI_Exception(YAPI.IO_ERROR, "Upload of firmware failed: incomplete upload");
}
if (use_self_flash)
{
byte[] startupConf;
string json = YAPI.DefaultEncoding.GetString(settings);
YJSONObject jsonObject = new YJSONObject(json);
jsonObject.parse();
YJSONObject settingsOnly = jsonObject.getYJSONObject("api");
settingsOnly.remove("services");
string startupConfStr = settingsOnly.ToString();
startupConf = YAPI.DefaultEncoding.GetBytes(startupConfStr);
await progress(20, "Upload startupConf.json");
head_body = YDevice.imm_formatHTTPUpload("startupConf.json", startupConf);
await _notificationHandler.hubRequestSync("POST " + baseurl + "/upload.html", head_body,
YIO_10_MINUTES_TCP_TIMEOUT);
await progress(20, "Upload firmwareConf");
head_body = YDevice.imm_formatHTTPUpload("firmwareConf", startupConf);
await _notificationHandler.hubRequestSync("POST " + baseurl + "/upload.html", head_body,
YIO_10_MINUTES_TCP_TIMEOUT);
}
//40%-> 80%
if (use_self_flash)
{
await progress(40, "Flash firmware");
// the hub itself -> reboot in autoflash mode
await _notificationHandler.hubRequestSync(
"GET " + baseurl + "/api/module/rebootCountdown?rebootCountdown=-1003", null, YIO_DEFAULT_TCP_TIMEOUT);
await Task.Delay(TimeSpan.FromSeconds(7));
}
else
{
// reboot device to bootloader if needed
if (need_reboot)
{
// reboot subdevice
await _notificationHandler.hubRequestSync(
"GET /bySerial/" + serial + "/api/module/rebootCountdown?rebootCountdown=-2", null,
YIO_DEFAULT_TCP_TIMEOUT);
}
// verify that the device is in bootloader
ulong timeout = YAPI.GetTickCount() + YPROG_BOOTLOADER_TIMEOUT;
byte[] res;
bool found = false;
await progress(40, "Wait for device to be in bootloader");
do
{
List <string> list = await getBootloaders();
foreach (string bl in list)
{
if (bl.Equals(serial))
{
found = true;
break;
}
}
if (!found)
{
//fixme: replace by async
//Thread.Sleep(100);
}
} while (!found && YAPI.GetTickCount() < timeout);
//start flash
await progress(45, "Flash firmware");
res = await _notificationHandler.hubRequestSync("GET /flash.json?a=flash&s=" + serial, null,
YIO_10_MINUTES_TCP_TIMEOUT);
string jsonstr = YAPI.DefaultEncoding.GetString(res);
YJSONObject flashres = new YJSONObject(jsonstr);
flashres.parse();
YJSONArray logslist = flashres.getYJSONArray("logs");
List <string> logs = new List <string>(logslist.Length);
for (int i = 0; i < logslist.Length; i++)
{
logs.Add(logslist.getString(i));
}
return(logs);
}
return(null);
}
