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emulation: WF200: suppress warning on odd-sized xfer

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The WF200 is connected via an 8-bit bus, but data is transferred in
chunks of 16-bits. That means that sometimes an extra byte is
transferred.

Suppress the warning that would occur when this happens to avoid
confusion.

Signed-off-by: Sean Cross <sean@xobs.io>
This commit is contained in:
Sean Cross 2024-02-06 10:25:34 +08:00
parent 38855960fa
commit 686299ce8b
1 changed files with 8 additions and 5 deletions
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13
emulation/peripherals/WF200.cs
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@ -623,7 +623,7 @@ namespace Antmicro.Renode.Peripherals.Network.Betrusted
return;
}
var req = (WfxMessage.Requests)(request.Id);
var req = (WfxMessage.Requests)request.Id;
if (req == WfxMessage.Requests.Configuration)
{
var message = new WfxMessage(WfxMessage.Confirmations.Configuration, okayResponse, configurationOffset);
@ -748,8 +748,8 @@ namespace Antmicro.Renode.Peripherals.Network.Betrusted
sendFrameResponse[3] = 0;
// uint16_t packet_id (from request)
sendFrameResponse[4] = (byte)(payload[2]);
sendFrameResponse[5] = (byte)(payload[3]);
sendFrameResponse[4] = payload[2];
sendFrameResponse[5] = payload[3];
sendFrameResponse[6] = 0;
// uint16_t reserved
@ -759,11 +759,14 @@ namespace Antmicro.Renode.Peripherals.Network.Betrusted
sendFrameResponse[8] = 0;
sendFrameResponse[9] = 0x30;
var frame_data = payload.GetRange(8, payload.Count - 8).ToArray();
// Our bus is 16-bits, but sometimes we want to transmit an odd number of bytes.
// Support omitting the last byte if necessary.
var roundingError = payload[4] & 1;
var frame_data = payload.GetRange(8, payload.Count - 8 - roundingError).ToArray();
var packet_data_length = (payload[4] << 0) | (payload[5] << 8) | (payload[6] << 16) | (payload[7] << 24);
if (frame_data.Length != packet_data_length)
{
this.Log(LogLevel.Error, "Warning: host reported payload length of {0}, but transmitted a payload length of {1}", packet_data_length, frame_data.Length);
this.Log(LogLevel.Warning, "host reported payload length of {0}, but transmitted a payload length of {1}", packet_data_length, frame_data.Length);
}
if (!Misc.TryCreateFrameOrLogWarning(this, frame_data, out var frame, addCrc: true))
{