/** Task to read in and processes the next report from the attached device, displaying the report
* contents on the board LEDs and via the serial port.
*/
void KeyboardHost_Task(void)
{
if (USB_HostState != HOST_STATE_Configured)
return;
/* Select keyboard data pipe */
Pipe_SelectPipe(KEYBOARD_DATA_IN_PIPE);
/* Unfreeze keyboard data pipe */
Pipe_Unfreeze();
/* Check to see if a packet has been received */
if (!(Pipe_IsINReceived()))
{
/* Refreeze HID data IN pipe */
Pipe_Freeze();
return;
}
/* Ensure pipe contains data before trying to read from it */
if (Pipe_IsReadWriteAllowed())
{
USB_KeyboardReport_Data_t KeyboardReport;
/* Read in keyboard report data */
Pipe_Read_Stream_LE(&KeyboardReport, sizeof(KeyboardReport), NULL);
/* Indicate if the modifier byte is non-zero (special key such as shift is being pressed) */
LEDs_ChangeLEDs(LEDS_LED1, (KeyboardReport.Modifier) ? LEDS_LED1 : 0);
uint8_t KeyCode = KeyboardReport.KeyCode[0];
/* Check if a key has been pressed */
if (KeyCode)
{
/* Toggle status LED to indicate keypress */
LEDs_ToggleLEDs(LEDS_LED2);
char PressedKey = 0;
/* Retrieve pressed key character if alphanumeric */
if ((KeyCode >= HID_KEYBOARD_SC_A) && (KeyCode <= HID_KEYBOARD_SC_Z))
{
PressedKey = (KeyCode - HID_KEYBOARD_SC_A) + 'A';
}
else if ((KeyCode >= HID_KEYBOARD_SC_1_AND_EXCLAMATION) &
(KeyCode < HID_KEYBOARD_SC_0_AND_CLOSING_PARENTHESIS))
{
PressedKey = (KeyCode - HID_KEYBOARD_SC_1_AND_EXCLAMATION) + '1';
}
else if (KeyCode == HID_KEYBOARD_SC_0_AND_CLOSING_PARENTHESIS)
{
PressedKey = '0';
}
else if (KeyCode == HID_KEYBOARD_SC_SPACE)
{
PressedKey = ' ';
}
else if (KeyCode == HID_KEYBOARD_SC_ENTER)
{
PressedKey = '\n';
}
/* Print the pressed key character out through the serial port if valid */
if (PressedKey)
putchar(PressedKey);
}
}
/* Clear the IN endpoint, ready for next data packet */
Pipe_ClearIN();
/* Refreeze keyboard data pipe */
Pipe_Freeze();
}
/** Task to manage an enumerated USB keyboard once connected, to display key state
* data as it is received.
*/
void KeyboardHost_Task(void)
{
if (USB_HostState != HOST_STATE_Configured)
return;
if (HID_Host_IsReportReceived(&Keyboard_HID_Interface))
{
uint8_t KeyboardReport[Keyboard_HID_Interface.State.LargestReportSize];
HID_Host_ReceiveReport(&Keyboard_HID_Interface, &KeyboardReport);
for (uint8_t ReportNumber = 0; ReportNumber < HIDReportInfo.TotalReportItems; ReportNumber++)
{
HID_ReportItem_t* ReportItem = &HIDReportInfo.ReportItems[ReportNumber];
/* Update the report item value if it is contained within the current report */
if (!(USB_GetHIDReportItemInfo(KeyboardReport, ReportItem)))
continue;
/* Determine what report item is being tested, process updated value as needed */
if ((ReportItem->Attributes.Usage.Page == USAGE_PAGE_KEYBOARD) &&
(ReportItem->Attributes.BitSize == 8) &&
(ReportItem->Attributes.Logical.Maximum > 1) &&
(ReportItem->ItemType == HID_REPORT_ITEM_In))
{
/* Key code is an unsigned char in length, cast to the appropriate type */
uint8_t KeyCode = (uint8_t)ReportItem->Value;
/* If scan-code is non-zero, a key is being pressed */
if (KeyCode)
{
/* Toggle status LED to indicate keypress */
LEDs_ToggleLEDs(LEDS_LED2);
char PressedKey = 0;
/* Convert scan-code to printable character if alphanumeric */
if ((KeyCode >= HID_KEYBOARD_SC_A) && (KeyCode <= HID_KEYBOARD_SC_Z))
{
PressedKey = (KeyCode - HID_KEYBOARD_SC_A) + 'A';
}
else if ((KeyCode >= HID_KEYBOARD_SC_1_AND_EXCLAMATION) &
(KeyCode < HID_KEYBOARD_SC_0_AND_CLOSING_PARENTHESIS))
{
PressedKey = (KeyCode - HID_KEYBOARD_SC_1_AND_EXCLAMATION) + '1';
}
else if (KeyCode == HID_KEYBOARD_SC_0_AND_CLOSING_PARENTHESIS)
{
PressedKey = '0';
}
else if (KeyCode == HID_KEYBOARD_SC_SPACE)
{
PressedKey = ' ';
}
else if (KeyCode == HID_KEYBOARD_SC_ENTER)
{
PressedKey = '\n';
}
/* Print the pressed key character out through the serial port if valid */
if (PressedKey)
putchar(PressedKey);
}
/* Once a scan-code is found, stop scanning through the report items */
break;
}
}
}
}
/** ISR to periodically toggle the LEDs on the board to indicate that the bootloader is active. */
ISR(TIMER1_OVF_vect, ISR_BLOCK)
{
LEDs_ToggleLEDs(LEDS_LED1 | LEDS_LED2);
}
/** Main program entry point. This routine contains the overall program flow, including initial
* setup of all components and the main program loop.
*/
int main(void)
{
SetupHardware();
RingBuffer_InitBuffer(&USARTtoUSB_Buffer, USARTtoUSB_Buffer_Data, sizeof(USARTtoUSB_Buffer_Data));
sei();
for (;;)
{
/* Echo bytes from the host to the target via the hardware USART */
if ((UCSR1A & (1 << UDRE1)) && CDC_Device_BytesReceived(&VirtualSerial_CDC_Interface))
{
UDR1 = CDC_Device_ReceiveByte(&VirtualSerial_CDC_Interface);
LEDs_TurnOnLEDs(LEDMASK_TX);
PulseMSRemaining.TxLEDPulse = TX_RX_LED_PULSE_MS;
}
/* Check if the millisecond timer has elapsed */
if (TIFR0 & (1 << OCF0A))
{
/* Clear flush timer expiry flag */
TIFR0 |= (1 << TOV0);
/* Check if the reset pulse period has elapsed, if so tristate the target reset line */
if (PulseMSRemaining.ResetPulse && !(--PulseMSRemaining.ResetPulse))
{
LEDs_TurnOffLEDs(LEDMASK_BUSY);
AVR_RESET_LINE_DDR &= ~AVR_RESET_LINE_MASK;
}
/* Check if the LEDs should be ping-ponging (during enumeration) */
if (PulseMSRemaining.PingPongLEDPulse && !(--PulseMSRemaining.PingPongLEDPulse))
{
LEDs_ToggleLEDs(LEDMASK_TX | LEDMASK_RX);
PulseMSRemaining.PingPongLEDPulse = PING_PONG_LED_PULSE_MS;
}
/* Turn off TX LED(s) once the TX pulse period has elapsed */
if (PulseMSRemaining.TxLEDPulse && !(--PulseMSRemaining.TxLEDPulse))
LEDs_TurnOffLEDs(LEDMASK_TX);
/* Turn off RX LED(s) once the RX pulse period has elapsed */
if (PulseMSRemaining.RxLEDPulse && !(--PulseMSRemaining.RxLEDPulse))
LEDs_TurnOffLEDs(LEDMASK_RX);
/* Check if the receive buffer flush period has expired */
uint16_t BufferCount = RingBuffer_GetCount(&USARTtoUSB_Buffer);
if (!(--FlushPeriodRemaining) || (BufferCount > 200))
{
FlushPeriodRemaining = RECEIVE_BUFFER_FLUSH_MS;
/* Start RX LED indicator pulse */
if (BufferCount)
{
LEDs_TurnOnLEDs(LEDMASK_RX);
PulseMSRemaining.RxLEDPulse = TX_RX_LED_PULSE_MS;
}
/* Echo bytes from the target to the host via the virtual serial port */
while (BufferCount--)
{
/* Try to send the next byte of data to the host, abort if there is an error without dequeuing */
if (CDC_Device_SendByte(&VirtualSerial_CDC_Interface,
RingBuffer_Peek(&USARTtoUSB_Buffer)) != ENDPOINT_READYWAIT_NoError)
{
break;
}
/* Dequeue the already sent byte from the buffer now we have confirmed that no transmission error occurred */
RingBuffer_Remove(&USARTtoUSB_Buffer);
}
}
}
CDC_Device_USBTask(&VirtualSerial_CDC_Interface);
USB_USBTask();
}
}
/** Main program entry point. This routine configures the hardware required by the application, then
* enters a loop to run the application tasks in sequence.
*/
int main(void)
{
SetupHardware();
puts_P(PSTR(ESC_FG_CYAN "Keyboard Host Demo running.\r\n" ESC_FG_WHITE));
LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
sei();
for (;;)
{
switch (USB_HostState)
{
case HOST_STATE_Addressed:
LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
uint16_t ConfigDescriptorSize;
uint8_t ConfigDescriptorData[512];
if (USB_Host_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, ConfigDescriptorData,
sizeof(ConfigDescriptorData)) != HOST_GETCONFIG_Successful)
{
puts_P(PSTR("Error Retrieving Configuration Descriptor.\r\n"));
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
USB_HostState = HOST_STATE_WaitForDeviceRemoval;
break;
}
if (HID_Host_ConfigurePipes(&Keyboard_HID_Interface,
ConfigDescriptorSize, ConfigDescriptorData) != HID_ENUMERROR_NoError)
{
puts_P(PSTR("Attached Device Not a Valid Keyboard.\r\n"));
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
USB_HostState = HOST_STATE_WaitForDeviceRemoval;
break;
}
if (USB_Host_SetDeviceConfiguration(1) != HOST_SENDCONTROL_Successful)
{
puts_P(PSTR("Error Setting Device Configuration.\r\n"));
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
USB_HostState = HOST_STATE_WaitForDeviceRemoval;
break;
}
if (HID_Host_SetBootProtocol(&Keyboard_HID_Interface) != 0)
{
puts_P(PSTR("Could not Set Boot Protocol Mode.\r\n"));
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
USB_HostState = HOST_STATE_WaitForDeviceRemoval;
break;
}
puts_P(PSTR("Keyboard Enumerated.\r\n"));
LEDs_SetAllLEDs(LEDMASK_USB_READY);
USB_HostState = HOST_STATE_Configured;
break;
case HOST_STATE_Configured:
if (HID_Host_IsReportReceived(&Keyboard_HID_Interface))
{
USB_KeyboardReport_Data_t KeyboardReport;
HID_Host_ReceiveReport(&Keyboard_HID_Interface, &KeyboardReport);
LEDs_ChangeLEDs(LEDS_LED1, (KeyboardReport.Modifier) ? LEDS_LED1 : 0);
uint8_t KeyCode = KeyboardReport.KeyCode[0];
if (KeyCode)
{
char PressedKey = 0;
LEDs_ToggleLEDs(LEDS_LED2);
/* Retrieve pressed key character if alphanumeric */
if ((KeyCode >= HID_KEYBOARD_SC_A) && (KeyCode <= HID_KEYBOARD_SC_Z))
{
PressedKey = (KeyCode - HID_KEYBOARD_SC_A) + 'A';
}
else if ((KeyCode >= HID_KEYBOARD_SC_1_AND_EXCLAMATION) &
(KeyCode < HID_KEYBOARD_SC_0_AND_CLOSING_PARENTHESIS))
{
PressedKey = (KeyCode - HID_KEYBOARD_SC_1_AND_EXCLAMATION) + '1';
}
else if (KeyCode == HID_KEYBOARD_SC_0_AND_CLOSING_PARENTHESIS)
{
PressedKey = '0';
}
else if (KeyCode == HID_KEYBOARD_SC_SPACE)
{
PressedKey = ' ';
}
else if (KeyCode == HID_KEYBOARD_SC_ENTER)
{
PressedKey = '\n';
}
if (PressedKey)
putchar(PressedKey);
}
}
break;
}
HID_Host_USBTask(&Keyboard_HID_Interface);
USB_USBTask();
}
}
/** Main program entry point. This routine configures the hardware required by the application, then
* enters a loop to run the application tasks in sequence.
*/
int main(void)
{
SetupHardware();
puts_P(PSTR(ESC_FG_CYAN "Keyboard Host Demo running.\r\n" ESC_FG_WHITE));
LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
sei();
for (;;)
{
switch (USB_HostState)
{
case HOST_STATE_Addressed:
LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
uint16_t ConfigDescriptorSize;
uint8_t ConfigDescriptorData[512];
if (USB_Host_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, ConfigDescriptorData,
sizeof(ConfigDescriptorData)) != HOST_GETCONFIG_Successful)
{
puts_P(PSTR("Error Retrieving Configuration Descriptor.\r\n"));
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
USB_HostState = HOST_STATE_WaitForDeviceRemoval;
break;
}
if (HID_Host_ConfigurePipes(&Keyboard_HID_Interface,
ConfigDescriptorSize, ConfigDescriptorData) != HID_ENUMERROR_NoError)
{
puts_P(PSTR("Attached Device Not a Valid Keyboard.\r\n"));
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
USB_HostState = HOST_STATE_WaitForDeviceRemoval;
break;
}
if (USB_Host_SetDeviceConfiguration(1) != HOST_SENDCONTROL_Successful)
{
puts_P(PSTR("Error Setting Device Configuration.\r\n"));
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
USB_HostState = HOST_STATE_WaitForDeviceRemoval;
break;
}
if (HID_Host_SetReportProtocol(&Keyboard_HID_Interface) != 0)
{
puts_P(PSTR("Error Setting Report Protocol Mode or Not a Valid Keyboard.\r\n"));
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
USB_HostState = HOST_STATE_WaitForDeviceRemoval;
break;
}
puts_P(PSTR("Keyboard Enumerated.\r\n"));
LEDs_SetAllLEDs(LEDMASK_USB_READY);
USB_HostState = HOST_STATE_Configured;
break;
case HOST_STATE_Configured:
if (HID_Host_IsReportReceived(&Keyboard_HID_Interface))
{
uint8_t KeyboardReport[Keyboard_HID_Interface.State.LargestReportSize];
HID_Host_ReceiveReport(&Keyboard_HID_Interface, &KeyboardReport);
for (uint8_t ReportNumber = 0; ReportNumber < HIDReportInfo.TotalReportItems; ReportNumber++)
{
HID_ReportItem_t* ReportItem = &HIDReportInfo.ReportItems[ReportNumber];
/* Update the report item value if it is contained within the current report */
if (!(USB_GetHIDReportItemInfo(KeyboardReport, ReportItem)))
continue;
/* Determine what report item is being tested, process updated value as needed */
if ((ReportItem->Attributes.Usage.Page == USAGE_PAGE_KEYBOARD) &&
(ReportItem->Attributes.BitSize == 8) &&
(ReportItem->Attributes.Logical.Maximum > 1) &&
(ReportItem->ItemType == REPORT_ITEM_TYPE_In))
{
/* Key code is an unsigned char in length, cast to the appropriate type */
uint8_t KeyCode = (uint8_t)ReportItem->Value;
/* If scan-code is non-zero, a key is being pressed */
if (KeyCode)
{
/* Toggle status LED to indicate keypress */
LEDs_ToggleLEDs(LEDS_LED2);
char PressedKey = 0;
/* Convert scan-code to printable character if alphanumeric */
if ((KeyCode >= 0x04) && (KeyCode <= 0x1D))
PressedKey = (KeyCode - 0x04) + 'A';
else if ((KeyCode >= 0x1E) && (KeyCode <= 0x27))
PressedKey = (KeyCode - 0x1E) + '0';
else if (KeyCode == 0x2C)
PressedKey = ' ';
else if (KeyCode == 0x28)
PressedKey = '\n';
/* Print the pressed key character out through the serial port if valid */
if (PressedKey)
putchar(PressedKey);
}
/* Once a scan-code is found, stop scanning through the report items */
break;
}
}
}
break;
}
HID_Host_USBTask(&Keyboard_HID_Interface);
USB_USBTask();
}
}
//------------------------------------------------------------------------------
static uint8_t serialProcess(Application *app)
{
uint16_t count = RingBuffer_GetCount(&app->buffer_);
if(count == 0)
return true;
uint8_t cmd = RingBuffer_Peek(&app->buffer_);
switch(cmd)
{
case 'L':
RingBuffer_Remove(&app->buffer_);
LEDs_ToggleLEDs(LEDS_LED1);
break;
case 'R':
RingBuffer_Remove(&app->buffer_);
asicReset();
asicResetSpi();
app->state.state = STATE_RESET;
sendCmdReply(app, cmd, (uint8_t *)&app->state, sizeof(State));
break;
case 'I':
RingBuffer_Remove(&app->buffer_);
sendCmdReply(app, cmd, (uint8_t *)&ID, sizeof(ID));
break;
case 'A':
RingBuffer_Remove(&app->buffer_);
app->state.state = STATE_RESET;
asicStop();
sendCmdReply(app, cmd, (uint8_t *)&app->state, sizeof(State));
break;
case 'S':
RingBuffer_Remove(&app->buffer_);
sendCmdReply(app, cmd, (uint8_t *)&app->state, sizeof(State));
break;
case 'W':
if(count > 44) // 32 bytes midstate + 12 bytes data
{
RingBuffer_Remove(&app->buffer_);
uint8_t i = 0;
uint8_t *midstate = (uint8_t *)app->worktask.midstate;
uint8_t *data = (uint8_t *)app->worktask.data;
for(i=0; i<32; i++)
{
midstate[i] = RingBuffer_Remove(&app->buffer_);
}
for(i=0; i<12; i++)
{
data[i] = RingBuffer_Remove(&app->buffer_);
}
asicPrecalc(app->worktask.midstate, app->worktask.data, app->worktask.precalc);
app->state.state = STATE_WORKING;
app->state.nonce_valid = 0;
app->state.nonce = 0;
asicReset();
asicResetSpi();
pushWork(app, &app->worktask);
timerSet(&app->work_timer, 16000);
sendCmdReply(app, cmd, (uint8_t *)&app->state, sizeof(State));
}
break;
default:
RingBuffer_Remove(&app->buffer_);
break;
}
return true;
}
/** Event handler for the library USB Unhandled Control Packet event. */
void EVENT_USB_Device_UnhandledControlRequest(void)
{
const uint8_t SerialNumber[5] = { 0, 0, 0, 0, 1 };
uint8_t ControlData[2] = { 0, 0 };
switch (USB_ControlRequest.bRequest)
{
case 0x09:
if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))
{
LEDs_ToggleLEDs(LEDS_LED1);
Endpoint_ClearSETUP();
Endpoint_Read_Control_Stream_LE(ControlData, sizeof(ControlData));
Endpoint_ClearIN();
switch (USB_ControlRequest.wValue)
{
case 0x303:
if (ControlData[1]) PORTC &= ~RELAY1; else PORTC |= RELAY1;
break;
case 0x306:
if (ControlData[1]) PORTC &= ~RELAY2; else PORTC |= RELAY2;
break;
case 0x309:
if (ControlData[1]) PORTC &= ~RELAY3; else PORTC |= RELAY3;
break;
case 0x30c:
if (ControlData[1]) PORTC &= ~RELAY4; else PORTC |= RELAY4;
break;
}
}
break;
case 0x01:
if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))
{
LEDs_ToggleLEDs(LEDS_LED1);
Endpoint_ClearSETUP();
switch (USB_ControlRequest.wValue)
{
case 0x301:
Endpoint_Write_Control_Stream_LE(SerialNumber, sizeof(SerialNumber));
break;
case 0x303:
ControlData[1] = (PORTC & RELAY1) ? 2 : 3;
break;
case 0x306:
ControlData[1] = (PORTC & RELAY2) ? 2 : 3;
break;
case 0x309:
ControlData[1] = (PORTC & RELAY3) ? 2 : 3;
break;
case 0x30c:
ControlData[1] = (PORTC & RELAY4) ? 2 : 3;
break;
}
if (ControlData[1])
Endpoint_Write_Control_Stream_LE(ControlData, sizeof(ControlData));
Endpoint_ClearOUT();
}
break;
}
}
/** Task to read in AVR109 commands from the CDC data OUT endpoint, process them, perform the required actions
* and send the appropriate response back to the host.
*/
static void CDC_Task(void)
{
/* Select the OUT endpoint */
Endpoint_SelectEndpoint(CDC_RX_EPADDR);
/* Check if endpoint has a command in it sent from the host */
if (!(Endpoint_IsOUTReceived()))
return;
/* LED feedback */
LEDs_ToggleLEDs(LEDS_LED1 | LEDS_LED2);
/* Read in the bootloader command (first byte sent from host) */
uint8_t Command = CDC_FetchNextCommandByte();
if (Command == AVR109_COMMAND_ExitBootloader)
{
/* Exit the bootloader */
RunBootloader = false;
/* Send confirmation byte back to the host */
CDC_WriteNextResponseByte('\r');
}
else if (Command == AVR109_COMMAND_SelectDeviceType)
{
/* Just flush this byte... */
CDC_FetchNextCommandByte();
/* Send confirmation byte back to the host */
CDC_WriteNextResponseByte('\r');
}
else if ((Command == AVR109_COMMAND_EnterProgrammingMode) || (Command == AVR109_COMMAND_LeaveProgrammingMode))
{
/* Send confirmation byte back to the host */
CDC_WriteNextResponseByte('\r');
}
else if (Command == AVR109_COMMAND_ReadPartCode)
{
/* Return ATMEGA128 part code - this is only to allow AVRProg to use the bootloader */
CDC_WriteNextResponseByte(0x44);
CDC_WriteNextResponseByte(0x00);
}
else if (Command == AVR109_COMMAND_ReadAutoAddressIncrement)
{
/* Indicate auto-address increment is supported */
CDC_WriteNextResponseByte('Y');
}
else if (Command == AVR109_COMMAND_SetCurrentAddress)
{
/* Set the current address to that given by the host (translate 16-bit word address to byte address) */
CurrAddress = (CDC_FetchNextCommandByte() << 9);
CurrAddress |= (CDC_FetchNextCommandByte() << 1);
/* Send confirmation byte back to the host */
CDC_WriteNextResponseByte('\r');
}
else if (Command == AVR109_COMMAND_ReadBootloaderInterface)
{
/* Indicate serial programmer back to the host */
CDC_WriteNextResponseByte('S');
}
else if (Command == AVR109_COMMAND_ReadBootloaderIdentifier)
{
/* Write the 7-byte software identifier to the endpoint */
CDC_WriteNextResponseByte(SOFTWARE_IDENTIFIER[0]);
CDC_WriteNextResponseByte(SOFTWARE_IDENTIFIER[1]);
CDC_WriteNextResponseByte(SOFTWARE_IDENTIFIER[2]);
CDC_WriteNextResponseByte(SOFTWARE_IDENTIFIER[3]);
CDC_WriteNextResponseByte(SOFTWARE_IDENTIFIER[4]);
CDC_WriteNextResponseByte(SOFTWARE_IDENTIFIER[5]);
CDC_WriteNextResponseByte(SOFTWARE_IDENTIFIER[6]);
}
else if (Command == AVR109_COMMAND_ReadBootloaderSWVersion)
{
CDC_WriteNextResponseByte('0' + BOOTLOADER_VERSION_MAJOR);
CDC_WriteNextResponseByte('0' + BOOTLOADER_VERSION_MINOR);
}
else if (Command == AVR109_COMMAND_ReadSignature)
{
CDC_WriteNextResponseByte(AVR_SIGNATURE_3);
CDC_WriteNextResponseByte(AVR_SIGNATURE_2);
CDC_WriteNextResponseByte(AVR_SIGNATURE_1);
}
else if (Command == AVR109_COMMAND_GetBlockWriteSupport)
{
CDC_WriteNextResponseByte('Y');
/* Send block size to the host */
CDC_WriteNextResponseByte(SPM_PAGESIZE >> 8);
CDC_WriteNextResponseByte(SPM_PAGESIZE & 0xFF);
}
/** Processes a read HID report from an attached keyboard, extracting out elements via the HID parser results
* as required and prints pressed characters to the serial port. Each time a key is typed, a board LED is toggled.
*
* \param[in] KeyboardReport Pointer to a HID report from an attached keyboard device
*/
void ProcessKeyboardReport(uint8_t* KeyboardReport)
{
/* Check each HID report item in turn, looking for keyboard scan code reports */
for (uint8_t ReportNumber = 0; ReportNumber < HIDReportInfo.TotalReportItems; ReportNumber++)
{
/* Create a temporary item pointer to the next report item */
HID_ReportItem_t* ReportItem = &HIDReportInfo.ReportItems[ReportNumber];
/* Check if the current report item is a keyboard scan-code */
if ((ReportItem->Attributes.Usage.Page == USAGE_PAGE_KEYBOARD) &&
(ReportItem->Attributes.BitSize == 8) &&
(ReportItem->Attributes.Logical.Maximum > 1) &&
(ReportItem->ItemType == HID_REPORT_ITEM_In))
{
/* Retrieve the keyboard scan-code from the report data retrieved from the device */
bool FoundData = USB_GetHIDReportItemInfo(KeyboardReport, ReportItem);
/* For multi-report devices - if the requested data was not in the issued report, continue */
if (!(FoundData))
continue;
/* Key code is an unsigned char in length, cast to the appropriate type */
uint8_t KeyCode = (uint8_t)ReportItem->Value;
/* If scan-code is non-zero, a key is being pressed */
if (KeyCode)
{
/* Toggle status LED to indicate keypress */
LEDs_ToggleLEDs(LEDS_LED2);
char PressedKey = 0;
/* Retrieve pressed key character if alphanumeric */
if ((KeyCode >= HID_KEYBOARD_SC_A) && (KeyCode <= HID_KEYBOARD_SC_Z))
{
PressedKey = (KeyCode - HID_KEYBOARD_SC_A) + 'A';
}
else if ((KeyCode >= HID_KEYBOARD_SC_1_AND_EXCLAMATION) &
(KeyCode < HID_KEYBOARD_SC_0_AND_CLOSING_PARENTHESIS))
{
PressedKey = (KeyCode - HID_KEYBOARD_SC_1_AND_EXCLAMATION) + '1';
}
else if (KeyCode == HID_KEYBOARD_SC_0_AND_CLOSING_PARENTHESIS)
{
PressedKey = '0';
}
else if (KeyCode == HID_KEYBOARD_SC_SPACE)
{
PressedKey = ' ';
}
else if (KeyCode == HID_KEYBOARD_SC_ENTER)
{
PressedKey = '\n';
}
/* Print the pressed key character out through the serial port if valid */
if (PressedKey)
putchar(PressedKey);
}
/* Once a scan-code is found, stop scanning through the report items */
break;
}
}
}
void usb_update_led() {
LEDs_ToggleLEDs(LEDS_ALL_LEDS);
}
//------------------------------------------------------------------------------
uint8_t serialProcess(void)
{
uint8_t cmd = RingBuffer_Remove(&buffer_);
uint8_t size = RingBuffer_Remove(&buffer_);
if(cmd == SERIAL_START_CONFIG)
{
return xilinxSetupConfiguration();
}
else if(cmd == SERIAL_DOWNLOAD_DATA)
{
uint8_t i=0;
LEDs_ToggleLEDs(LEDS_LED1);
for(i=0; i<size; i++)
{
xilinxSend(RingBuffer_Remove(&buffer_));
}
if(isSetDone())
{
return true;
}
if(!isSetInitB())
{
return false;
}
}
else if(cmd == SERIAL_USE_SPI)
{
SPI_Init(SPI_SPEED_FCPU_DIV_8 |
SPI_SCK_LEAD_RISING |
SPI_SAMPLE_LEADING |
SPI_ORDER_MSB_FIRST |
SPI_MODE_MASTER);
DDRB |= (1 << 0);
PORTB |= (1 << 0);
}
else if(cmd == SERIAL_SPI_DATA)
{
uint8_t i=0;
LEDs_ToggleLEDs(LEDS_LED2);
for(i=0; i<size; i++)
{
SPI_SendByte(RingBuffer_Remove(&buffer_));
}
}
else if(cmd == SERIAL_SPI_SELECT)
{
uint8_t prop = RingBuffer_Remove(&buffer_);
if(prop)
{
PORTD &= ~_BV(PD3);
}
else
{
PORTD |= _BV(PD3);
}
}
else if(cmd == SERIAL_USE_USART)
{
SPI_Disable();
PORTB &= ~((1 << 1) | (1 << 2));
DDRB |= (1 << 1) | (1 << 2);
}
else if(cmd == SERIAL_USART_DATA)
{
uint8_t i=0;
for(i=0; i<size; i++)
{
Serial_SendByte(RingBuffer_Remove(&buffer_));
}
}
else if(cmd == SERIAL_FPGA_RESET)
{
PORTB |= _BV(PB1);
_delay_us(5);
PORTB &= ~_BV(PB1);
}
else if(cmd == SERIAL_FPGA_START)
{
PORTB |= _BV(PB2);
_delay_us(5);
PORTB &= ~_BV(PB2);
}
else
{
uint8_t i=0;
for(i=0; i<size; i++)
RingBuffer_Remove(&buffer_);
return false;
}
return true;
}
/** Main program entry point. This routine contains the overall program flow, including initial
* setup of all components and the main program loop.
*/
int main(void)
{
SetupHardware();
RingBuffer_InitBuffer(&Tx_Buffer);
sei();
for (;;)
{
/* Echo bytes from the host to the target via the hardware USART */
int16_t ReceivedByte = CDC_Device_ReceiveByte(&VirtualSerial_CDC_Interface);
if (!(ReceivedByte < 0) && (UCSR1A & (1 << UDRE1)))
{
UDR1 = ReceivedByte;
LEDs_TurnOnLEDs(LEDMASK_TX);
PulseMSRemaining.TxLEDPulse = TX_RX_LED_PULSE_MS;
}
/* Check if the millisecond timer has elapsed */
if (TIFR0 & (1 << OCF0A))
{
/* Check if the reset pulse period has elapsed, if so tristate the target reset line */
if (PulseMSRemaining.ResetPulse && !(--PulseMSRemaining.ResetPulse))
{
LEDs_TurnOffLEDs(LEDMASK_BUSY);
AVR_RESET_LINE_DDR &= ~AVR_RESET_LINE_MASK;
}
/* Check if the LEDs should be ping-ponging (during enumeration) */
if (PulseMSRemaining.PingPongLEDPulse && !(--PulseMSRemaining.PingPongLEDPulse))
{
LEDs_ToggleLEDs(LEDMASK_TX | LEDMASK_RX);
PulseMSRemaining.PingPongLEDPulse = PING_PONG_LED_PULSE_MS;
}
/* Turn off TX LED(s) once the TX pulse period has elapsed */
if (PulseMSRemaining.TxLEDPulse && !(--PulseMSRemaining.TxLEDPulse))
LEDs_TurnOffLEDs(LEDMASK_TX);
/* Turn off RX LED(s) once the RX pulse period has elapsed */
if (PulseMSRemaining.RxLEDPulse && !(--PulseMSRemaining.RxLEDPulse))
LEDs_TurnOffLEDs(LEDMASK_RX);
/* Check if the receive buffer flush period has expired */
RingBuff_Count_t BufferCount = RingBuffer_GetCount(&Tx_Buffer);
if (!(--FlushPeriodRemaining) || (BufferCount > 200))
{
/* Echo bytes from the target to the host via the virtual serial port */
if (BufferCount)
{
while (BufferCount--)
CDC_Device_SendByte(&VirtualSerial_CDC_Interface, RingBuffer_Remove(&Tx_Buffer));
LEDs_TurnOnLEDs(LEDMASK_RX);
PulseMSRemaining.RxLEDPulse = TX_RX_LED_PULSE_MS;
}
FlushPeriodRemaining = RECEIVE_BUFFER_FLUSH_MS;
}
/* Clear the millisecond timer CTC flag (cleared by writing logic one to the register) */
TIFR0 |= (1 << OCF0A);
}
CDC_Device_USBTask(&VirtualSerial_CDC_Interface);
USB_USBTask();
}
}