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author | Dean Camera <dean@fourwalledcubicle.com> | 2010-05-26 06:35:02 +0000 |
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committer | Dean Camera <dean@fourwalledcubicle.com> | 2010-05-26 06:35:02 +0000 |
commit | 9b29d1dc5045b74516e0ddd3ffcc200ef8ad9bff (patch) | |
tree | 77c55d0cc5d3c065be1144bd62e21d18a2d02f30 /Projects/XPLAINBridge/XPLAINBridge.c | |
parent | 9c037a952f5aaf78c4e13398506cfa2d588bb449 (diff) | |
download | lufa-9b29d1dc5045b74516e0ddd3ffcc200ef8ad9bff.tar.gz lufa-9b29d1dc5045b74516e0ddd3ffcc200ef8ad9bff.tar.bz2 lufa-9b29d1dc5045b74516e0ddd3ffcc200ef8ad9bff.zip |
Create a new LightweightRingBuffer.h header file for the XPLAIN project to abstract out the new ring buffer without a performance penalty.
Diffstat (limited to 'Projects/XPLAINBridge/XPLAINBridge.c')
-rw-r--r-- | Projects/XPLAINBridge/XPLAINBridge.c | 37 |
1 files changed, 9 insertions, 28 deletions
diff --git a/Projects/XPLAINBridge/XPLAINBridge.c b/Projects/XPLAINBridge/XPLAINBridge.c index ce23862dd..5798c21a5 100644 --- a/Projects/XPLAINBridge/XPLAINBridge.c +++ b/Projects/XPLAINBridge/XPLAINBridge.c @@ -77,10 +77,8 @@ int main(void) { SetupHardware(); - USBtoUART_Buffer.In = USBtoUART_Buffer.Buffer; - USBtoUART_Buffer.Out = USBtoUART_Buffer.Buffer; - UARTtoUSB_Buffer.In = UARTtoUSB_Buffer.Buffer; - UARTtoUSB_Buffer.Out = UARTtoUSB_Buffer.Buffer; + RingBuffer_InitBuffer(&USBtoUART_Buffer); + RingBuffer_InitBuffer(&UARTtoUSB_Buffer); LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY); sei(); @@ -124,36 +122,19 @@ void USARTBridge_Task(void) /* Read bytes from the USB OUT endpoint into the UART transmit buffer */ for (uint8_t DataBytesRem = CDC_Device_BytesReceived(&VirtualSerial_CDC_Interface); DataBytesRem != 0; DataBytesRem--) - { - *USBtoUART_Buffer.In = CDC_Device_ReceiveByte(&VirtualSerial_CDC_Interface); - - if (++USBtoUART_Buffer.In == &USBtoUART_Buffer.Buffer[128]) - USBtoUART_Buffer.In = USBtoUART_Buffer.Buffer; - } + RingBuffer_Insert(&USBtoUART_Buffer, CDC_Device_ReceiveByte(&VirtualSerial_CDC_Interface)); /* Read bytes from the UART receive buffer into the USB IN endpoint */ - if (UARTtoUSB_Buffer.In != UARTtoUSB_Buffer.Out) - { - CDC_Device_SendByte(&VirtualSerial_CDC_Interface, *UARTtoUSB_Buffer.Out); - if (++UARTtoUSB_Buffer.Out == &UARTtoUSB_Buffer.Buffer[128]) - UARTtoUSB_Buffer.Out = UARTtoUSB_Buffer.Buffer; - } + if (!(RingBuffer_Empty(&UARTtoUSB_Buffer))) + CDC_Device_SendByte(&VirtualSerial_CDC_Interface, RingBuffer_Remove(&UARTtoUSB_Buffer)); /* Load bytes from the UART transmit buffer into the UART */ - if ((USBtoUART_Buffer.In != USBtoUART_Buffer.Out) && SoftUART_IsReady()) - { - SoftUART_TxByte(*USBtoUART_Buffer.Out); - if (++USBtoUART_Buffer.Out == &USBtoUART_Buffer.Buffer[128]) - USBtoUART_Buffer.Out = USBtoUART_Buffer.Buffer; - } + if (!(RingBuffer_Empty(&USBtoUART_Buffer)) && SoftUART_IsReady()) + SoftUART_TxByte(RingBuffer_Remove(&USBtoUART_Buffer)); /* Load bytes from the UART into the UART receive buffer */ if (SoftUART_IsReceived()) - { - *UARTtoUSB_Buffer.In = SoftUART_RxByte(); - if (++UARTtoUSB_Buffer.In == &UARTtoUSB_Buffer.Buffer[128]) - UARTtoUSB_Buffer.In = UARTtoUSB_Buffer.Buffer; - } + RingBuffer_Insert(&UARTtoUSB_Buffer, SoftUART_RxByte()); CDC_Device_USBTask(&VirtualSerial_CDC_Interface); } @@ -183,7 +164,7 @@ void SetupHardware(void) _delay_ms(10); /* Select the firmware mode based on the JTD pin's value */ - CurrentFirmwareMode = MODE_USART_BRIDGE; // TEMP (PINF & (1 << 7)) ? MODE_USART_BRIDGE : MODE_PDI_PROGRAMMER; + CurrentFirmwareMode = (PINF & (1 << 7)) ? MODE_USART_BRIDGE : MODE_PDI_PROGRAMMER; /* Re-enable JTAG debugging */ MCUCR &= ~(1 << JTD); |