+++ /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 KeyboardHost demo. This file contains the main tasks of\r
- * the demo and is responsible for the initial application hardware configuration.\r
- */\r
- \r
-#include "KeyboardHost.h"\r
-\r
-/* Project Tags, for reading out using the ButtLoad project */\r
-BUTTLOADTAG(ProjName, "LUFA KBD Host App");\r
-BUTTLOADTAG(BuildTime, __TIME__);\r
-BUTTLOADTAG(BuildDate, __DATE__);\r
-BUTTLOADTAG(LUFAVersion, "LUFA V" LUFA_VERSION_STRING);\r
-\r
-/* Scheduler Task List */\r
-TASK_LIST\r
-{\r
- { Task: USB_USBTask , TaskStatus: TASK_STOP },\r
- { Task: USB_Keyboard_Host , TaskStatus: TASK_STOP },\r
-};\r
-\r
-\r
-/** Main program entry point. This routine configures the hardware required by the application, then\r
- * starts the scheduler to run the application tasks.\r
- */\r
-int main(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
- \r
- /* Indicate USB not ready */\r
- UpdateStatus(Status_USBNotReady);\r
- \r
- /* Initialize Scheduler so that it can be used */\r
- Scheduler_Init();\r
-\r
- /* Initialize USB Subsystem */\r
- USB_Init();\r
-\r
- /* Startup message */\r
- puts_P(PSTR(ESC_RESET ESC_BG_WHITE ESC_INVERSE_ON ESC_ERASE_DISPLAY\r
- "Keyboard Host Demo running.\r\n" ESC_INVERSE_OFF));\r
- \r
- /* Scheduling - routine never returns, so put this last in the main function */\r
- Scheduler_Start();\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
-EVENT_HANDLER(USB_DeviceAttached)\r
-{\r
- puts_P(PSTR("Device Attached.\r\n"));\r
- UpdateStatus(Status_USBEnumerating);\r
-\r
- /* Start USB management task to enumerate the device */\r
- Scheduler_SetTaskMode(USB_USBTask, TASK_RUN);\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
-EVENT_HANDLER(USB_DeviceUnattached)\r
-{\r
- /* Stop Keyboard and USB management task */\r
- Scheduler_SetTaskMode(USB_USBTask, TASK_STOP);\r
- Scheduler_SetTaskMode(USB_Keyboard_Host, TASK_STOP);\r
-\r
- puts_P(PSTR("Device Unattached.\r\n"));\r
- UpdateStatus(Status_USBNotReady);\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
-EVENT_HANDLER(USB_DeviceEnumerationComplete)\r
-{\r
- /* Start Keyboard Host task */\r
- Scheduler_SetTaskMode(USB_Keyboard_Host, TASK_RUN);\r
- \r
- /* Indicate device enumeration complete */\r
- UpdateStatus(Status_USBReady);\r
-}\r
-\r
-/** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */\r
-EVENT_HANDLER(USB_HostError)\r
-{\r
- USB_ShutDown();\r
-\r
- puts_P(PSTR(ESC_BG_RED "Host Mode Error\r\n"));\r
- printf_P(PSTR(" -- Error Code %d\r\n"), ErrorCode);\r
-\r
- UpdateStatus(Status_HardwareError);\r
- for(;;);\r
-}\r
-\r
-/** Event handler for the USB_DeviceEnumerationFailed event. This indicates that a problem occured while\r
- * enumerating an attached USB device.\r
- */\r
-EVENT_HANDLER(USB_DeviceEnumerationFailed)\r
-{\r
- puts_P(PSTR(ESC_BG_RED "Dev Enum Error\r\n"));\r
- printf_P(PSTR(" -- Error Code %d\r\n"), ErrorCode);\r
- printf_P(PSTR(" -- Sub Error Code %d\r\n"), SubErrorCode);\r
- printf_P(PSTR(" -- In State %d\r\n"), USB_HostState);\r
-\r
- UpdateStatus(Status_EnumerationError);\r
-}\r
-\r
-/** Function to manage status updates to the user. This is done via LEDs on the given board, if available, but may be changed to\r
- * log to a serial port, or anything else that is suitable for status updates.\r
- *\r
- * \param CurrentStatus Current status of the system, from the KeyboardHost_StatusCodes_t enum\r
- */\r
-void UpdateStatus(uint8_t CurrentStatus)\r
-{\r
- uint8_t LEDMask = LEDS_NO_LEDS;\r
- \r
- /* Set the LED mask to the appropriate LED mask based on the given status code */\r
- switch (CurrentStatus)\r
- {\r
- case Status_USBNotReady:\r
- LEDMask = (LEDS_LED1);\r
- break;\r
- case Status_USBEnumerating:\r
- LEDMask = (LEDS_LED1 | LEDS_LED2);\r
- break;\r
- case Status_USBReady:\r
- LEDMask = (LEDS_LED2);\r
- break;\r
- case Status_EnumerationError:\r
- case Status_HardwareError:\r
- LEDMask = (LEDS_LED1 | LEDS_LED3);\r
- break;\r
- }\r
- \r
- /* Set the board LEDs to the new LED mask */\r
- LEDs_SetAllLEDs(LEDMask);\r
-}\r
-\r
-/** Reads in and processes the next report from the attached device, displaying the report\r
- * contents on the board LEDs and via the serial port.\r
- */\r
-void ReadNextReport(void)\r
-{\r
- USB_KeyboardReport_Data_t KeyboardReport;\r
- \r
- /* Select the keyboard report data in pipe */\r
- Pipe_SelectPipe(KEYBOARD_DATAPIPE); \r
-\r
- /* Ensure pipe contains data and is ready to be read before continuing */\r
- if (!(Pipe_ReadWriteAllowed()))\r
- return;\r
-\r
- /* Read in keyboard report data */\r
- Pipe_Read_Stream_LE(&KeyboardReport, sizeof(KeyboardReport));\r
- \r
- /* Clear the IN endpoint, ready for next data packet */\r
- Pipe_ClearCurrentBank();\r
-\r
- /* Indicate if the modifier byte is non-zero (special key such as shift is being pressed) */\r
- LEDs_ChangeLEDs(LEDS_LED1, (KeyboardReport.Modifier) ? LEDS_LED1 : 0);\r
- \r
- /* Check if a key has been pressed */\r
- if (KeyboardReport.KeyCode)\r
- {\r
- /* Toggle status LED to indicate keypress */\r
- if (LEDs_GetLEDs() & LEDS_LED2)\r
- LEDs_TurnOffLEDs(LEDS_LED2);\r
- else\r
- LEDs_TurnOnLEDs(LEDS_LED2);\r
- \r
- char PressedKey = 0;\r
-\r
- /* Retrieve pressed key character if alphanumeric */\r
- if ((KeyboardReport.KeyCode >= 0x04) && (KeyboardReport.KeyCode <= 0x1D))\r
- PressedKey = (KeyboardReport.KeyCode - 0x04) + 'A';\r
- else if ((KeyboardReport.KeyCode >= 0x1E) && (KeyboardReport.KeyCode <= 0x27))\r
- PressedKey = (KeyboardReport.KeyCode - 0x1E) + '0';\r
- else if (KeyboardReport.KeyCode == 0x2C)\r
- PressedKey = ' '; \r
- else if (KeyboardReport.KeyCode == 0x28)\r
- PressedKey = '\n';\r
- \r
- /* Print the pressed key character out through the serial port if valid */\r
- if (PressedKey)\r
- putchar(PressedKey);\r
- }\r
-}\r
-\r
-/** Task to set the configuration of the attached device after it has been enumerated, and to read and process\r
- * HID reports from the device and display the results onto the board LEDs.\r
- */\r
-TASK(USB_Keyboard_Host)\r
-{\r
- uint8_t ErrorCode;\r
-\r
- switch (USB_HostState)\r
- {\r
- case HOST_STATE_Addressed:\r
- /* Standard request to set the device configuration to configuration 1 */\r
- USB_HostRequest = (USB_Host_Request_Header_t)\r
- {\r
- bmRequestType: (REQDIR_HOSTTODEVICE | REQTYPE_STANDARD | REQREC_DEVICE),\r
- bRequest: REQ_SetConfiguration,\r
- wValue: 1,\r
- wIndex: 0,\r
- wLength: 0,\r
- };\r
-\r
- /* Send the request, display error and wait for device detatch if request fails */\r
- if ((ErrorCode = USB_Host_SendControlRequest(NULL)) != HOST_SENDCONTROL_Successful)\r
- {\r
- puts_P(PSTR("Control Error (Set Configuration).\r\n"));\r
- printf_P(PSTR(" -- Error Code: %d\r\n"), ErrorCode);\r
-\r
- /* Indicate error status */\r
- UpdateStatus(Status_EnumerationError);\r
-\r
- /* Wait until USB device disconnected */\r
- while (USB_IsConnected);\r
- break;\r
- }\r
- \r
- USB_HostState = HOST_STATE_Configured;\r
- break;\r
- case HOST_STATE_Configured:\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("Control Error (Get Configuration).\r\n"));\r
- else\r
- puts_P(PSTR("Invalid Device.\r\n"));\r
-\r
- printf_P(PSTR(" -- Error Code: %d\r\n"), ErrorCode);\r
- \r
- /* Indicate error status */\r
- UpdateStatus(Status_EnumerationError);\r
-\r
- /* Wait until USB device disconnected */\r
- while (USB_IsConnected);\r
- break;\r
- }\r
- \r
- /* HID class request to set the keyboard protocol to the Boot Protocol */\r
- USB_HostRequest = (USB_Host_Request_Header_t)\r
- {\r
- bmRequestType: (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE),\r
- bRequest: REQ_SetProtocol,\r
- wValue: 0,\r
- wIndex: 0,\r
- wLength: 0,\r
- };\r
-\r
- /* Send the request, display error and wait for device detatch if request fails */\r
- if ((ErrorCode = USB_Host_SendControlRequest(NULL)) != HOST_SENDCONTROL_Successful)\r
- {\r
- puts_P(PSTR("Control Error (Set Protocol).\r\n"));\r
- printf_P(PSTR(" -- Error Code: %d\r\n"), ErrorCode);\r
-\r
- /* Indicate error status */\r
- UpdateStatus(Status_EnumerationError);\r
- \r
- /* Wait until USB device disconnected */\r
- while (USB_IsConnected);\r
- break;\r
- }\r
-\r
- puts_P(PSTR("Keyboard Enumerated.\r\n"));\r
- \r
- USB_HostState = HOST_STATE_Ready;\r
- break;\r
- #if !defined(INTERRUPT_DATA_PIPE)\r
- case HOST_STATE_Ready:\r
- /* Select and unfreeze keyboard data pipe */\r
- Pipe_SelectPipe(KEYBOARD_DATAPIPE); \r
- Pipe_Unfreeze();\r
-\r
- /* If a report has been received, read and process it */\r
- if (Pipe_ReadWriteAllowed())\r
- ReadNextReport();\r
-\r
- /* Freeze keyboard data pipe */\r
- Pipe_Freeze();\r
- break;\r
- #endif\r
- }\r
-}\r
-\r
-#if defined(INTERRUPT_DATA_PIPE)\r
-/** Interrupt handler for the Endpoint/Pipe interrupt vector. This interrupt fires each time an enabled\r
- * pipe interrupt occurs on a pipe which has had that interrupt enabled.\r
- */\r
-ISR(ENDPOINT_PIPE_vect, ISR_BLOCK)\r
-{\r
- /* Check to see if the keyboard data pipe has caused the interrupt */\r
- if (Pipe_HasPipeInterrupted(KEYBOARD_DATAPIPE))\r
- {\r
- /* Clear the pipe interrupt, and select the keyboard pipe */\r
- Pipe_ClearPipeInterrupt(KEYBOARD_DATAPIPE);\r
- Pipe_SelectPipe(KEYBOARD_DATAPIPE); \r
-\r
- /* Check to see if the pipe IN interrupt has fired */\r
- if (USB_INT_HasOccurred(PIPE_INT_IN) && USB_INT_IsEnabled(PIPE_INT_IN))\r
- {\r
- /* Clear interrupt flag */\r
- USB_INT_Clear(PIPE_INT_IN); \r
-\r
- /* Read and process the next report from the device */\r
- ReadNextReport();\r
- }\r
-}\r
-#endif\r
projects / pub / lufa.git / blobdiff