-/*\r
- LUFA Library\r
- Copyright (C) Dean Camera, 2010.\r
- \r
- dean [at] fourwalledcubicle [dot] com\r
- www.fourwalledcubicle.com\r
-*/\r
-\r
-/*\r
- Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
-\r
- Permission to use, copy, modify, distribute, and sell this \r
- software and its documentation for any purpose is hereby granted\r
- without fee, provided that the above copyright notice appear in \r
- all copies and that both that the copyright notice and this\r
- permission notice and warranty disclaimer appear in supporting \r
- documentation, and that the name of the author not be used in \r
- advertising or publicity pertaining to distribution of the \r
- software without specific, written prior permission.\r
-\r
- The author disclaim all warranties with regard to this\r
- software, including all implied warranties of merchantability\r
- and fitness. In no event shall the author be liable for any\r
- special, indirect or consequential damages or any damages\r
- whatsoever resulting from loss of use, data or profits, whether\r
- in an action of contract, negligence or other tortious action,\r
- arising out of or in connection with the use or performance of\r
- this software.\r
-*/\r
-\r
-/** \file\r
- *\r
- * Main source file for the Benito project. This file contains the main tasks of\r
- * the project and is responsible for the initial application hardware configuration.\r
- */\r
-\r
-#include "Benito.h"\r
-\r
-/** Circular buffer to hold data from the serial port before it is sent to the host. */\r
-RingBuff_t Tx_Buffer;\r
-\r
-/** Pulse generation counters to keep track of the number of milliseconds remaining for each pulse type */\r
-volatile struct\r
-{\r
- uint8_t ResetPulse; /**< Milliseconds remaining for target /RESET pulse */\r
- uint8_t TxLEDPulse; /**< Milliseconds remaining for data Tx LED pulse */\r
- uint8_t RxLEDPulse; /**< Milliseconds remaining for data Rx LED pulse */\r
- uint8_t PingPongLEDPulse; /**< Milliseconds remaining for enumeration Tx/Rx ping-pong LED pulse */\r
-} PulseMSRemaining;\r
-\r
-/** Previous state of the virtual DTR control line from the host */\r
-bool PreviousDTRState = false;\r
-\r
-/** LUFA CDC Class driver interface configuration and state information. This structure is\r
- * passed to all CDC Class driver functions, so that multiple instances of the same class\r
- * within a device can be differentiated from one another.\r
- */\r
-USB_ClassInfo_CDC_Device_t VirtualSerial_CDC_Interface =\r
- {\r
- .Config = \r
- {\r
- .ControlInterfaceNumber = 0,\r
-\r
- .DataINEndpointNumber = CDC_TX_EPNUM,\r
- .DataINEndpointSize = CDC_TXRX_EPSIZE,\r
- .DataINEndpointDoubleBank = false,\r
-\r
- .DataOUTEndpointNumber = CDC_RX_EPNUM,\r
- .DataOUTEndpointSize = CDC_TXRX_EPSIZE,\r
- .DataOUTEndpointDoubleBank = false,\r
-\r
- .NotificationEndpointNumber = CDC_NOTIFICATION_EPNUM,\r
- .NotificationEndpointSize = CDC_NOTIFICATION_EPSIZE,\r
- .NotificationEndpointDoubleBank = false,\r
- },\r
- };\r
-\r
-/** Main program entry point. This routine contains the overall program flow, including initial\r
- * setup of all components and the main program loop.\r
- */\r
-int main(void)\r
-{\r
- SetupHardware();\r
- \r
- Buffer_Initialize(&Tx_Buffer);\r
- \r
- sei();\r
-\r
- for (;;)\r
- {\r
- /* Echo bytes from the host to the target via the hardware USART */\r
- while (CDC_Device_BytesReceived(&VirtualSerial_CDC_Interface) > 0)\r
- {\r
- Serial_TxByte(CDC_Device_ReceiveByte(&VirtualSerial_CDC_Interface));\r
-\r
- LEDs_TurnOnLEDs(LEDMASK_TX);\r
- PulseMSRemaining.TxLEDPulse = TX_RX_LED_PULSE_MS; \r
- }\r
- \r
- /* Echo bytes from the target to the host via the virtual serial port */\r
- while (Tx_Buffer.Elements > 0)\r
- {\r
- CDC_Device_SendByte(&VirtualSerial_CDC_Interface, Buffer_GetElement(&Tx_Buffer));\r
-\r
- LEDs_TurnOnLEDs(LEDMASK_RX);\r
- PulseMSRemaining.RxLEDPulse = TX_RX_LED_PULSE_MS;\r
- }\r
- \r
- /* Check if the millisecond timer has elapsed */\r
- if (TIFR0 & (1 << OCF0A))\r
- {\r
- /* Check if the reset pulse period has elapsed, if so tristate the target reset line */\r
- if (PulseMSRemaining.ResetPulse && !(--PulseMSRemaining.ResetPulse))\r
- {\r
- LEDs_TurnOffLEDs(LEDMASK_BUSY);\r
- AVR_RESET_LINE_DDR &= ~AVR_RESET_LINE_MASK;\r
- }\r
- \r
- /* Check if the LEDs should be ping-ponging (during enumeration) */\r
- if (PulseMSRemaining.PingPongLEDPulse && !(--PulseMSRemaining.PingPongLEDPulse))\r
- {\r
- LEDs_ToggleLEDs(LEDMASK_TX | LEDMASK_RX);\r
- PulseMSRemaining.PingPongLEDPulse = PING_PONG_LED_PULSE_MS;\r
- }\r
- \r
- /* Turn off TX LED(s) once the TX pulse period has elapsed */\r
- if (PulseMSRemaining.TxLEDPulse && !(--PulseMSRemaining.TxLEDPulse))\r
- LEDs_TurnOffLEDs(LEDMASK_TX);\r
-\r
- /* Turn off RX LED(s) once the RX pulse period has elapsed */\r
- if (PulseMSRemaining.RxLEDPulse && !(--PulseMSRemaining.RxLEDPulse))\r
- LEDs_TurnOffLEDs(LEDMASK_RX);\r
-\r
- /* Clear the millisecond timer CTC flag (cleared by writing logic one to the register) */\r
- TIFR0 |= (1 << OCF0A); \r
- }\r
- \r
- CDC_Device_USBTask(&VirtualSerial_CDC_Interface);\r
- USB_USBTask();\r
- }\r
-}\r
-\r
-/** Configures the board hardware and chip peripherals for the demo's functionality. */\r
-void SetupHardware(void)\r
-{\r
- /* Disable watchdog if enabled by bootloader/fuses */\r
- MCUSR &= ~(1 << WDRF);\r
- wdt_disable();\r
-\r
- /* Hardware Initialization */\r
- Serial_Init(9600, false);\r
- LEDs_Init();\r
- USB_Init();\r
-\r
- /* Millisecond Timer Interrupt */\r
- OCR0A = (F_CPU / 64 / 1000);\r
- TCCR0A = (1 << WGM01);\r
- TCCR0B = ((1 << CS01) | (1 << CS00));\r
- \r
- /* Tristate target /RESET Line */\r
- AVR_RESET_LINE_PORT &= ~AVR_RESET_LINE_MASK;\r
- AVR_RESET_LINE_DDR &= ~AVR_RESET_LINE_MASK;\r
-}\r
-\r
-/** Event handler for the library USB Connection event. */\r
-void EVENT_USB_Device_Connect(void)\r
-{\r
- PulseMSRemaining.PingPongLEDPulse = PING_PONG_LED_PULSE_MS;\r
- LEDs_SetAllLEDs(LEDMASK_TX);\r
-}\r
-\r
-/** Event handler for the library USB Disconnection event. */\r
-void EVENT_USB_Device_Disconnect(void)\r
-{\r
- PulseMSRemaining.PingPongLEDPulse = 0;\r
- LEDs_SetAllLEDs(LEDS_NO_LEDS);\r
-}\r
-\r
-/** Event handler for the library USB Configuration Changed event. */\r
-void EVENT_USB_Device_ConfigurationChanged(void)\r
-{\r
- PulseMSRemaining.PingPongLEDPulse = 0;\r
- LEDs_SetAllLEDs(LEDS_NO_LEDS);\r
-\r
- if (!(CDC_Device_ConfigureEndpoints(&VirtualSerial_CDC_Interface)))\r
- LEDs_SetAllLEDs(LEDMASK_ERROR);\r
-}\r
-\r
-/** Event handler for the library USB Unhandled Control Request event. */\r
-void EVENT_USB_Device_UnhandledControlRequest(void)\r
-{\r
- CDC_Device_ProcessControlRequest(&VirtualSerial_CDC_Interface);\r
-}\r
-\r
-/** Event handler for the CDC Class driver Line Encoding Changed event.\r
- *\r
- * \param[in] CDCInterfaceInfo Pointer to the CDC class interface configuration structure being referenced\r
- */\r
-void EVENT_CDC_Device_LineEncodingChanged(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo)\r
-{\r
- uint8_t ConfigMask = 0;\r
-\r
- switch (CDCInterfaceInfo->State.LineEncoding.ParityType)\r
- {\r
- case CDC_PARITY_Odd:\r
- ConfigMask = ((1 << UPM11) | (1 << UPM10)); \r
- break;\r
- case CDC_PARITY_Even:\r
- ConfigMask = (1 << UPM11); \r
- break;\r
- }\r
-\r
- if (CDCInterfaceInfo->State.LineEncoding.CharFormat == CDC_LINEENCODING_TwoStopBits)\r
- ConfigMask |= (1 << USBS1);\r
-\r
- switch (CDCInterfaceInfo->State.LineEncoding.DataBits)\r
- {\r
- case 6:\r
- ConfigMask |= (1 << UCSZ10);\r
- break;\r
- case 7:\r
- ConfigMask |= (1 << UCSZ11);\r
- break;\r
- case 8:\r
- ConfigMask |= ((1 << UCSZ11) | (1 << UCSZ10));\r
- break;\r
- }\r
- \r
- UCSR1A = (1 << U2X1);\r
- UCSR1B = ((1 << RXCIE1) | (1 << TXEN1) | (1 << RXEN1));\r
- UCSR1C = ConfigMask; \r
- UBRR1 = SERIAL_2X_UBBRVAL(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS);\r
-}\r
-\r
-/** ISR to manage the reception of data from the serial port, placing received bytes into a circular buffer\r
- * for later transmission to the host.\r
- */\r
-ISR(USART1_RX_vect, ISR_BLOCK)\r
-{\r
- uint8_t ReceivedByte = UDR1;\r
-\r
- if (USB_DeviceState == DEVICE_STATE_Configured)\r
- Buffer_StoreElement(&Tx_Buffer, ReceivedByte);\r
-}\r
-\r
-/** Event handler for the CDC Class driver Host-to-Device Line Encoding Changed event.\r
- *\r
- * \param[in] CDCInterfaceInfo Pointer to the CDC class interface configuration structure being referenced\r
- */\r
-void EVENT_CDC_Device_ControLineStateChanged(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo)\r
-{\r
- bool CurrentDTRState = (CDCInterfaceInfo->State.ControlLineStates.HostToDevice & CDC_CONTROL_LINE_OUT_DTR);\r
-\r
- /* Check if the DTR line has been asserted - if so, start the target AVR's reset pulse */\r
- if (!(PreviousDTRState) && CurrentDTRState)\r
- {\r
- LEDs_SetAllLEDs(LEDMASK_BUSY);\r
- \r
- AVR_RESET_LINE_DDR |= AVR_RESET_LINE_MASK;\r
- PulseMSRemaining.ResetPulse = AVR_RESET_PULSE_MS;\r
- }\r
- \r
- PreviousDTRState = CurrentDTRState;\r
-}\r
+/*
+ LUFA Library
+ Copyright (C) Dean Camera, 2010.
+
+ dean [at] fourwalledcubicle [dot] com
+ www.fourwalledcubicle.com
+*/
+
+/*
+ Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+ Permission to use, copy, modify, distribute, and sell this
+ software and its documentation for any purpose is hereby granted
+ without fee, provided that the above copyright notice appear in
+ all copies and that both that the copyright notice and this
+ permission notice and warranty disclaimer appear in supporting
+ documentation, and that the name of the author not be used in
+ advertising or publicity pertaining to distribution of the
+ software without specific, written prior permission.
+
+ The author disclaim all warranties with regard to this
+ software, including all implied warranties of merchantability
+ and fitness. In no event shall the author be liable for any
+ special, indirect or consequential damages or any damages
+ whatsoever resulting from loss of use, data or profits, whether
+ in an action of contract, negligence or other tortious action,
+ arising out of or in connection with the use or performance of
+ this software.
+*/
+
+/** \file
+ *
+ * Main source file for the Benito project. This file contains the main tasks of
+ * the project and is responsible for the initial application hardware configuration.
+ */
+
+#include "Benito.h"
+
+/** Circular buffer to hold data from the serial port before it is sent to the host. */
+RingBuff_t Tx_Buffer;
+
+/** Pulse generation counters to keep track of the number of milliseconds remaining for each pulse type */
+volatile struct
+{
+ uint8_t ResetPulse; /**< Milliseconds remaining for target /RESET pulse */
+ uint8_t TxLEDPulse; /**< Milliseconds remaining for data Tx LED pulse */
+ uint8_t RxLEDPulse; /**< Milliseconds remaining for data Rx LED pulse */
+ uint8_t PingPongLEDPulse; /**< Milliseconds remaining for enumeration Tx/Rx ping-pong LED pulse */
+} PulseMSRemaining;
+
+/** Previous state of the virtual DTR control line from the host */
+bool PreviousDTRState = false;
+
+/** LUFA CDC Class driver interface configuration and state information. This structure is
+ * passed to all CDC Class driver functions, so that multiple instances of the same class
+ * within a device can be differentiated from one another.
+ */
+USB_ClassInfo_CDC_Device_t VirtualSerial_CDC_Interface =
+ {
+ .Config =
+ {
+ .ControlInterfaceNumber = 0,
+
+ .DataINEndpointNumber = CDC_TX_EPNUM,
+ .DataINEndpointSize = CDC_TXRX_EPSIZE,
+ .DataINEndpointDoubleBank = false,
+
+ .DataOUTEndpointNumber = CDC_RX_EPNUM,
+ .DataOUTEndpointSize = CDC_TXRX_EPSIZE,
+ .DataOUTEndpointDoubleBank = false,
+
+ .NotificationEndpointNumber = CDC_NOTIFICATION_EPNUM,
+ .NotificationEndpointSize = CDC_NOTIFICATION_EPSIZE,
+ .NotificationEndpointDoubleBank = false,
+ },
+ };
+
+/** 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();
+
+ Buffer_Initialize(&Tx_Buffer);
+
+ sei();
+
+ for (;;)
+ {
+ /* Echo bytes from the host to the target via the hardware USART */
+ while (CDC_Device_BytesReceived(&VirtualSerial_CDC_Interface) > 0)
+ {
+ Serial_TxByte(CDC_Device_ReceiveByte(&VirtualSerial_CDC_Interface));
+
+ LEDs_TurnOnLEDs(LEDMASK_TX);
+ PulseMSRemaining.TxLEDPulse = TX_RX_LED_PULSE_MS;
+ }
+
+ /* Echo bytes from the target to the host via the virtual serial port */
+ while (Tx_Buffer.Elements > 0)
+ {
+ CDC_Device_SendByte(&VirtualSerial_CDC_Interface, Buffer_GetElement(&Tx_Buffer));
+
+ LEDs_TurnOnLEDs(LEDMASK_RX);
+ PulseMSRemaining.RxLEDPulse = 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);
+
+ /* 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();
+ }
+}
+
+/** Configures the board hardware and chip peripherals for the demo's functionality. */
+void SetupHardware(void)
+{
+ /* Disable watchdog if enabled by bootloader/fuses */
+ MCUSR &= ~(1 << WDRF);
+ wdt_disable();
+
+ /* Hardware Initialization */
+ Serial_Init(9600, false);
+ LEDs_Init();
+ USB_Init();
+
+ /* Millisecond Timer Interrupt */
+ OCR0A = (F_CPU / 64 / 1000);
+ TCCR0A = (1 << WGM01);
+ TCCR0B = ((1 << CS01) | (1 << CS00));
+
+ /* Tristate target /RESET Line */
+ AVR_RESET_LINE_PORT &= ~AVR_RESET_LINE_MASK;
+ AVR_RESET_LINE_DDR &= ~AVR_RESET_LINE_MASK;
+}
+
+/** Event handler for the library USB Connection event. */
+void EVENT_USB_Device_Connect(void)
+{
+ PulseMSRemaining.PingPongLEDPulse = PING_PONG_LED_PULSE_MS;
+ LEDs_SetAllLEDs(LEDMASK_TX);
+}
+
+/** Event handler for the library USB Disconnection event. */
+void EVENT_USB_Device_Disconnect(void)
+{
+ PulseMSRemaining.PingPongLEDPulse = 0;
+ LEDs_SetAllLEDs(LEDS_NO_LEDS);
+}
+
+/** Event handler for the library USB Configuration Changed event. */
+void EVENT_USB_Device_ConfigurationChanged(void)
+{
+ PulseMSRemaining.PingPongLEDPulse = 0;
+ LEDs_SetAllLEDs(LEDS_NO_LEDS);
+
+ if (!(CDC_Device_ConfigureEndpoints(&VirtualSerial_CDC_Interface)))
+ LEDs_SetAllLEDs(LEDMASK_ERROR);
+}
+
+/** Event handler for the library USB Unhandled Control Request event. */
+void EVENT_USB_Device_UnhandledControlRequest(void)
+{
+ CDC_Device_ProcessControlRequest(&VirtualSerial_CDC_Interface);
+}
+
+/** Event handler for the CDC Class driver Line Encoding Changed event.
+ *
+ * \param[in] CDCInterfaceInfo Pointer to the CDC class interface configuration structure being referenced
+ */
+void EVENT_CDC_Device_LineEncodingChanged(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo)
+{
+ uint8_t ConfigMask = 0;
+
+ switch (CDCInterfaceInfo->State.LineEncoding.ParityType)
+ {
+ case CDC_PARITY_Odd:
+ ConfigMask = ((1 << UPM11) | (1 << UPM10));
+ break;
+ case CDC_PARITY_Even:
+ ConfigMask = (1 << UPM11);
+ break;
+ }
+
+ if (CDCInterfaceInfo->State.LineEncoding.CharFormat == CDC_LINEENCODING_TwoStopBits)
+ ConfigMask |= (1 << USBS1);
+
+ switch (CDCInterfaceInfo->State.LineEncoding.DataBits)
+ {
+ case 6:
+ ConfigMask |= (1 << UCSZ10);
+ break;
+ case 7:
+ ConfigMask |= (1 << UCSZ11);
+ break;
+ case 8:
+ ConfigMask |= ((1 << UCSZ11) | (1 << UCSZ10));
+ break;
+ }
+
+ UCSR1A = (1 << U2X1);
+ UCSR1B = ((1 << RXCIE1) | (1 << TXEN1) | (1 << RXEN1));
+ UCSR1C = ConfigMask;
+ UBRR1 = SERIAL_2X_UBBRVAL(CDCInterfaceInfo->State.LineEncoding.BaudRateBPS);
+}
+
+/** ISR to manage the reception of data from the serial port, placing received bytes into a circular buffer
+ * for later transmission to the host.
+ */
+ISR(USART1_RX_vect, ISR_BLOCK)
+{
+ uint8_t ReceivedByte = UDR1;
+
+ if (USB_DeviceState == DEVICE_STATE_Configured)
+ Buffer_StoreElement(&Tx_Buffer, ReceivedByte);
+}
+
+/** Event handler for the CDC Class driver Host-to-Device Line Encoding Changed event.
+ *
+ * \param[in] CDCInterfaceInfo Pointer to the CDC class interface configuration structure being referenced
+ */
+void EVENT_CDC_Device_ControLineStateChanged(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo)
+{
+ bool CurrentDTRState = (CDCInterfaceInfo->State.ControlLineStates.HostToDevice & CDC_CONTROL_LINE_OUT_DTR);
+
+ /* Check if the DTR line has been asserted - if so, start the target AVR's reset pulse */
+ if (!(PreviousDTRState) && CurrentDTRState)
+ {
+ LEDs_SetAllLEDs(LEDMASK_BUSY);
+
+ AVR_RESET_LINE_DDR |= AVR_RESET_LINE_MASK;
+ PulseMSRemaining.ResetPulse = AVR_RESET_PULSE_MS;
+ }
+
+ PreviousDTRState = CurrentDTRState;
+}
projects / pub / USBasp.git / blobdiff