+++ /dev/null
-/*\r
- LUFA Library\r
- Copyright (C) Dean Camera, 2009.\r
- \r
- dean [at] fourwalledcubicle [dot] com\r
- www.fourwalledcubicle.com\r
-*/\r
-\r
-/*\r
- Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
-\r
- Permission to use, copy, modify, and distribute this software\r
- and its documentation for any purpose and without fee is hereby\r
- granted, provided that the above copyright notice appear in all\r
- 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 CDCHost demo. This file contains the main tasks of\r
- * the demo and is responsible for the initial application hardware configuration.\r
- */\r
- \r
-#include "CDCHost.h"\r
-\r
-#if 0\r
-/* NOTE: Here you can set up a standard stream using the created virtual serial port, so that the standard stream functions in\r
- * <stdio.h> can be used on the virtual serial port (e.g. fprintf(&USBSerial, "Test"); to print a string).\r
- */\r
- \r
-static int CDC_putchar(char c, FILE *stream)\r
-{ \r
- Pipe_SelectPipe(CDC_DATAPIPE_OUT);\r
- \r
- if (Pipe_WaitUntilReady())\r
- return -1;\r
-\r
- Pipe_Write_Byte(c);\r
- Pipe_ClearIN();\r
- \r
- return 0;\r
-}\r
-\r
-static int CDC_getchar(FILE *stream)\r
-{\r
- int c;\r
-\r
- Pipe_SelectPipe(CDC_DATAPIPE_IN);\r
- \r
- for (;;)\r
- {\r
- if (Pipe_WaitUntilReady())\r
- return -1;\r
- \r
- if (!(Pipe_BytesInPipe()))\r
- {\r
- Pipe_ClearOUT();\r
- }\r
- else\r
- {\r
- c = Pipe_Read_Byte();\r
- break;\r
- }\r
- }\r
- \r
- return c;\r
-}\r
-\r
-static FILE USBSerial = FDEV_SETUP_STREAM(CDC_putchar, CDC_getchar, _FDEV_SETUP_RW);\r
-#endif\r
-\r
-/** Main program entry point. This routine configures the hardware required by the application, then\r
- * enters a loop to run the application tasks in sequence.\r
- */\r
-int main(void)\r
-{\r
- SetupHardware();\r
-\r
- puts_P(PSTR(ESC_FG_CYAN "CDC Host Demo running.\r\n" ESC_FG_WHITE));\r
-\r
- LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);\r
-\r
- for (;;)\r
- {\r
- CDC_Host_Task();\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
- /* Disable clock division */\r
- clock_prescale_set(clock_div_1);\r
-\r
- /* Hardware Initialization */\r
- SerialStream_Init(9600, false);\r
- LEDs_Init();\r
- USB_Init();\r
-}\r
-\r
-/** Event handler for the USB_DeviceAttached event. This indicates that a device has been attached to the host, and\r
- * starts the library USB task to begin the enumeration and USB management process.\r
- */\r
-void EVENT_USB_Host_DeviceAttached(void)\r
-{\r
- puts_P(PSTR(ESC_FG_GREEN "Device Attached.\r\n" ESC_FG_WHITE));\r
- LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);\r
-}\r
-\r
-/** Event handler for the USB_DeviceUnattached event. This indicates that a device has been removed from the host, and\r
- * stops the library USB task management process.\r
- */\r
-void EVENT_USB_Host_DeviceUnattached(void)\r
-{\r
- puts_P(PSTR(ESC_FG_GREEN "\r\nDevice Unattached.\r\n" ESC_FG_WHITE));\r
- LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);\r
-}\r
-\r
-/** Event handler for the USB_DeviceEnumerationComplete event. This indicates that a device has been successfully\r
- * enumerated by the host and is now ready to be used by the application.\r
- */\r
-void EVENT_USB_Host_DeviceEnumerationComplete(void)\r
-{\r
- LEDs_SetAllLEDs(LEDMASK_USB_READY);\r
-}\r
-\r
-/** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */\r
-void EVENT_USB_Host_HostError(const uint8_t ErrorCode)\r
-{\r
- USB_ShutDown();\r
-\r
- printf_P(PSTR(ESC_FG_RED "Host Mode Error\r\n"\r
- " -- Error Code %d\r\n" ESC_FG_WHITE), ErrorCode);\r
-\r
- LEDs_SetAllLEDs(LEDMASK_USB_ERROR);\r
- for(;;);\r
-}\r
-\r
-/** Event handler for the USB_DeviceEnumerationFailed event. This indicates that a problem occurred while\r
- * enumerating an attached USB device.\r
- */\r
-void EVENT_USB_Host_DeviceEnumerationFailed(const uint8_t ErrorCode, const uint8_t SubErrorCode)\r
-{\r
- printf_P(PSTR(ESC_FG_RED "Dev Enum Error\r\n"\r
- " -- Error Code %d\r\n"\r
- " -- Sub Error Code %d\r\n"\r
- " -- In State %d\r\n" ESC_FG_WHITE), ErrorCode, SubErrorCode, USB_HostState);\r
- \r
- LEDs_SetAllLEDs(LEDMASK_USB_ERROR);\r
-}\r
-\r
-/** Task to set the configuration of the attached device after it has been enumerated, and to read in\r
- * data received from the attached CDC device and print it to the serial port.\r
- */\r
-void CDC_Host_Task(void)\r
-{\r
- uint8_t ErrorCode;\r
-\r
- switch (USB_HostState)\r
- {\r
- case HOST_STATE_Addressed:\r
- puts_P(PSTR("Getting Config Data.\r\n"));\r
- \r
- /* Get and process the configuration descriptor data */\r
- if ((ErrorCode = ProcessConfigurationDescriptor()) != SuccessfulConfigRead)\r
- {\r
- if (ErrorCode == ControlError)\r
- puts_P(PSTR(ESC_FG_RED "Control Error (Get Configuration).\r\n"));\r
- else\r
- puts_P(PSTR(ESC_FG_RED "Invalid Device.\r\n"));\r
-\r
- printf_P(PSTR(" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);\r
- \r
- /* Indicate error via status LEDs */\r
- LEDs_SetAllLEDs(LEDMASK_USB_ERROR);\r
-\r
- /* Wait until USB device disconnected */\r
- USB_HostState = HOST_STATE_WaitForDeviceRemoval;\r
- break;\r
- }\r
- \r
- /* Set the device configuration to the first configuration (rarely do devices use multiple configurations) */\r
- if ((ErrorCode = USB_Host_SetDeviceConfiguration(1)) != HOST_SENDCONTROL_Successful)\r
- {\r
- printf_P(PSTR(ESC_FG_RED "Control Error (Set Configuration).\r\n"\r
- " -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);\r
-\r
- /* Indicate error via status LEDs */\r
- LEDs_SetAllLEDs(LEDMASK_USB_ERROR);\r
-\r
- /* Wait until USB device disconnected */\r
- USB_HostState = HOST_STATE_WaitForDeviceRemoval;\r
- break;\r
- }\r
-\r
- puts_P(PSTR("CDC Device Enumerated.\r\n"));\r
-\r
- USB_HostState = HOST_STATE_Configured;\r
- break;\r
- case HOST_STATE_Configured:\r
- /* Select the data IN pipe */\r
- Pipe_SelectPipe(CDC_DATAPIPE_IN);\r
- Pipe_SetPipeToken(PIPE_TOKEN_IN);\r
- Pipe_Unfreeze();\r
-\r
- /* Check to see if a packet has been received */\r
- if (Pipe_IsINReceived())\r
- {\r
- /* Re-freeze IN pipe after the packet has been received */\r
- Pipe_Freeze();\r
-\r
- /* Check if data is in the pipe */\r
- if (Pipe_IsReadWriteAllowed())\r
- {\r
- /* Get the length of the pipe data, and create a new buffer to hold it */\r
- uint16_t BufferLength = Pipe_BytesInPipe();\r
- uint8_t Buffer[BufferLength];\r
- \r
- /* Read in the pipe data to the temporary buffer */\r
- Pipe_Read_Stream_LE(Buffer, BufferLength);\r
- \r
- /* Print out the buffer contents to the USART */\r
- for (uint16_t BufferByte = 0; BufferByte < BufferLength; BufferByte++)\r
- putchar(Buffer[BufferByte]);\r
- }\r
-\r
- /* Clear the pipe after it is read, ready for the next packet */\r
- Pipe_ClearIN();\r
- }\r
-\r
- /* Re-freeze IN pipe after use */\r
- Pipe_Freeze();\r
-\r
- /* Select and unfreeze the notification pipe */\r
- Pipe_SelectPipe(CDC_NOTIFICATIONPIPE);\r
- Pipe_Unfreeze();\r
- \r
- /* Check if a packet has been received */\r
- if (Pipe_IsINReceived())\r
- {\r
- /* Discard the unused event notification */\r
- Pipe_ClearIN();\r
- }\r
- \r
- /* Freeze notification IN pipe after use */\r
- Pipe_Freeze();\r
- \r
- break;\r
- }\r
-}\r
projects / pub / lufa.git / blobdiff