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Altered the CDC Deivice and Host Class drivers' receive byte routines, so that no data is indicated by a negative return value.

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Added auto flushing of OUT data to the CDC Host Class driver's USBTask function to automatically flush the send pipe buffer.
This commit is contained in:
Dean Camera
2010-07-30 03:52:11 +00:00
parent 7c8d16fd7a
commit 24e621a8d8
13 changed files with 89 additions and 59 deletions
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8
Demos/Device/ClassDriver/DualVirtualSerial/DualVirtualSerial.c
View File

@@ -101,12 +101,12 @@ int main(void)
CheckJoystickMovement();
/* Discard all received data on the first CDC interface */
while (CDC_Device_BytesReceived(&VirtualSerial1_CDC_Interface))
CDC_Device_ReceiveByte(&VirtualSerial1_CDC_Interface);
CDC_Device_ReceiveByte(&VirtualSerial1_CDC_Interface);
/* Echo all received data on the second CDC interface */
while (CDC_Device_BytesReceived(&VirtualSerial2_CDC_Interface))
CDC_Device_SendByte(&VirtualSerial2_CDC_Interface, CDC_Device_ReceiveByte(&VirtualSerial2_CDC_Interface));
int16_t ReceivedByte; = CDC_Device_ReceiveByte(&VirtualSerial2_CDC_Interface);
if (!(ReceivedByte < 0))
CDC_Device_SendByte(&VirtualSerial2_CDC_Interface, (uint8_t)ReceivedByte);
CDC_Device_USBTask(&VirtualSerial1_CDC_Interface);
CDC_Device_USBTask(&VirtualSerial2_CDC_Interface);

3
Demos/Device/ClassDriver/VirtualSerial/VirtualSerial.c
View File

@@ -83,8 +83,7 @@ int main(void)
CheckJoystickMovement();
/* Must throw away unused bytes from the host, or it will lock up while waiting for the device */
while (CDC_Device_BytesReceived(&VirtualSerial_CDC_Interface))
CDC_Device_ReceiveByte(&VirtualSerial_CDC_Interface);
CDC_Device_ReceiveByte(&VirtualSerial_CDC_Interface);
CDC_Device_USBTask(&VirtualSerial_CDC_Interface);
USB_USBTask();

3
Demos/Device/ClassDriver/VirtualSerialMouse/VirtualSerialMouse.c
View File

@@ -97,8 +97,7 @@ int main(void)
CheckJoystickMovement();
/* Must throw away unused bytes from the host, or it will lock up while waiting for the device */
while (CDC_Device_BytesReceived(&VirtualSerial_CDC_Interface))
CDC_Device_ReceiveByte(&VirtualSerial_CDC_Interface);
CDC_Device_ReceiveByte(&VirtualSerial_CDC_Interface);
CDC_Device_USBTask(&VirtualSerial_CDC_Interface);
HID_Device_USBTask(&Mouse_HID_Interface);

7
Demos/Host/ClassDriver/VirtualSerialHost/VirtualSerialHost.c
View File

@@ -111,10 +111,9 @@ int main(void)
if (CDC_Host_BytesReceived(&VirtualSerial_CDC_Interface))
{
/* Echo received bytes from the attached device through the USART */
while (CDC_Host_BytesReceived(&VirtualSerial_CDC_Interface))
putchar(CDC_Host_ReceiveByte(&VirtualSerial_CDC_Interface));
CDC_Host_Flush(&VirtualSerial_CDC_Interface);
int16_t ReceivedByte = CDC_Host_ReceiveByte(&VirtualSerial_CDC_Interface);
if (!(ReceivedByte < 0))
putchar(ReceivedByte);
}
break;