X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/f1199200e167a737a4676378da184387e543830c..05fcf7e2a79bebb978d4aeaef26b12f70c6826f8:/Demos/Host/ClassDriver/KeyboardHost/KeyboardHost.c?ds=sidebyside diff --git a/Demos/Host/ClassDriver/KeyboardHost/KeyboardHost.c b/Demos/Host/ClassDriver/KeyboardHost/KeyboardHost.c index 2b9bb2b0b..ed8f723c0 100644 --- a/Demos/Host/ClassDriver/KeyboardHost/KeyboardHost.c +++ b/Demos/Host/ClassDriver/KeyboardHost/KeyboardHost.c @@ -36,19 +36,125 @@ #include "KeyboardHost.h" -/* Scheduler Task List */ -TASK_LIST -{ - { .Task = USB_USBTask , .TaskStatus = TASK_STOP }, - { .Task = USB_Keyboard_Host , .TaskStatus = TASK_STOP }, -}; +/** LUFA HID Class driver interface configuration and state information. This structure is + * passed to all HID Class driver functions, so that multiple instances of the same class + * within a device can be differentiated from one another. + */ +USB_ClassInfo_HID_Host_t Keyboard_HID_Interface = + { + .Config = + { + .DataINPipeNumber = 1, + .DataINPipeDoubleBank = false, + .DataOUTPipeNumber = 2, + .DataOUTPipeDoubleBank = false, + + .HIDInterfaceProtocol = HID_BOOT_KEYBOARD_PROTOCOL, + }, + }; + /** Main program entry point. This routine configures the hardware required by the application, then - * starts the scheduler to run the application tasks. + * 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); + + 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) + { + printf("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) + { + printf("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) + { + printf("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) + { + printf("Could not Set Boot Protocol Mode.\r\n"); + LEDs_SetAllLEDs(LEDMASK_USB_ERROR); + USB_HostState = HOST_STATE_WaitForDeviceRemoval; + break; + } + + printf("Keyboard Enumerated.\r\n"); + 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 PressedKeyCode = KeyboardReport.KeyCode[0]; + + if (PressedKeyCode) + { + char PressedKey = 0; + + LEDs_ToggleLEDs(LEDS_LED2); + + /* Retrieve pressed key character if alphanumeric */ + if ((PressedKeyCode >= 0x04) && (PressedKeyCode <= 0x1D)) + PressedKey = (PressedKeyCode - 0x04) + 'A'; + else if ((PressedKeyCode >= 0x1E) && (PressedKeyCode <= 0x27)) + PressedKey = (PressedKeyCode - 0x1E) + '0'; + else if (PressedKeyCode == 0x2C) + PressedKey = ' '; + else if (PressedKeyCode == 0x28) + PressedKey = '\n'; + + if (PressedKey) + putchar(PressedKey); + } + } + + break; + } + + HID_Host_USBTask(&Keyboard_HID_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(); @@ -59,277 +165,56 @@ int main(void) /* Hardware Initialization */ SerialStream_Init(9600, false); LEDs_Init(); - - /* Indicate USB not ready */ - UpdateStatus(Status_USBNotReady); - - /* Initialize Scheduler so that it can be used */ - Scheduler_Init(); - - /* Initialize USB Subsystem */ USB_Init(); - - /* Start-up message */ - puts_P(PSTR(ESC_RESET ESC_BG_WHITE ESC_INVERSE_ON ESC_ERASE_DISPLAY - "Keyboard Host Demo running.\r\n" ESC_INVERSE_OFF)); - - /* Scheduling - routine never returns, so put this last in the main function */ - Scheduler_Start(); } /** Event handler for the USB_DeviceAttached event. This indicates that a device has been attached to the host, and * starts the library USB task to begin the enumeration and USB management process. */ -void EVENT_USB_DeviceAttached(void) +void EVENT_USB_Host_DeviceAttached(void) { puts_P(PSTR("Device Attached.\r\n")); - UpdateStatus(Status_USBEnumerating); - - /* Start USB management task to enumerate the device */ - Scheduler_SetTaskMode(USB_USBTask, TASK_RUN); + LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING); } /** Event handler for the USB_DeviceUnattached event. This indicates that a device has been removed from the host, and * stops the library USB task management process. */ -void EVENT_USB_DeviceUnattached(void) +void EVENT_USB_Host_DeviceUnattached(void) { - /* Stop Keyboard and USB management task */ - Scheduler_SetTaskMode(USB_USBTask, TASK_STOP); - Scheduler_SetTaskMode(USB_Keyboard_Host, TASK_STOP); - - puts_P(PSTR("Device Unattached.\r\n")); - UpdateStatus(Status_USBNotReady); + puts_P(PSTR("\r\nDevice Unattached.\r\n")); + LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY); } /** Event handler for the USB_DeviceEnumerationComplete event. This indicates that a device has been successfully * enumerated by the host and is now ready to be used by the application. */ -void EVENT_USB_DeviceEnumerationComplete(void) +void EVENT_USB_Host_DeviceEnumerationComplete(void) { - /* Start Keyboard Host task */ - Scheduler_SetTaskMode(USB_Keyboard_Host, TASK_RUN); - - /* Indicate device enumeration complete */ - UpdateStatus(Status_USBReady); + LEDs_SetAllLEDs(LEDMASK_USB_READY); } /** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */ -void EVENT_USB_HostError(const uint8_t ErrorCode) +void EVENT_USB_Host_HostError(const uint8_t ErrorCode) { USB_ShutDown(); - puts_P(PSTR(ESC_BG_RED "Host Mode Error\r\n")); - printf_P(PSTR(" -- Error Code %d\r\n"), ErrorCode); + printf_P(PSTR(ESC_FG_RED "Host Mode Error\r\n" + " -- Error Code %d\r\n" ESC_FG_WHITE), ErrorCode); - UpdateStatus(Status_HardwareError); + LEDs_SetAllLEDs(LEDMASK_USB_ERROR); for(;;); } /** Event handler for the USB_DeviceEnumerationFailed event. This indicates that a problem occurred while * enumerating an attached USB device. */ -void EVENT_USB_DeviceEnumerationFailed(const uint8_t ErrorCode, const uint8_t SubErrorCode) +void EVENT_USB_Host_DeviceEnumerationFailed(const uint8_t ErrorCode, const uint8_t SubErrorCode) { - puts_P(PSTR(ESC_BG_RED "Dev Enum Error\r\n")); - printf_P(PSTR(" -- Error Code %d\r\n"), ErrorCode); - printf_P(PSTR(" -- Sub Error Code %d\r\n"), SubErrorCode); - printf_P(PSTR(" -- In State %d\r\n"), USB_HostState); - - UpdateStatus(Status_EnumerationError); -} - -/** Function to manage status updates to the user. This is done via LEDs on the given board, if available, but may be changed to - * log to a serial port, or anything else that is suitable for status updates. - * - * \param CurrentStatus Current status of the system, from the KeyboardHost_StatusCodes_t enum - */ -void UpdateStatus(uint8_t CurrentStatus) -{ - uint8_t LEDMask = LEDS_NO_LEDS; + printf_P(PSTR(ESC_FG_RED "Dev Enum Error\r\n" + " -- Error Code %d\r\n" + " -- Sub Error Code %d\r\n" + " -- In State %d\r\n" ESC_FG_WHITE), ErrorCode, SubErrorCode, USB_HostState); - /* Set the LED mask to the appropriate LED mask based on the given status code */ - switch (CurrentStatus) - { - case Status_USBNotReady: - LEDMask = (LEDS_LED1); - break; - case Status_USBEnumerating: - LEDMask = (LEDS_LED1 | LEDS_LED2); - break; - case Status_USBReady: - LEDMask = (LEDS_LED2); - break; - case Status_EnumerationError: - case Status_HardwareError: - LEDMask = (LEDS_LED1 | LEDS_LED3); - break; - } - - /* Set the board LEDs to the new LED mask */ - LEDs_SetAllLEDs(LEDMask); -} - -/** Reads in and processes the next report from the attached device, displaying the report - * contents on the board LEDs and via the serial port. - */ -void ReadNextReport(void) -{ - USB_KeyboardReport_Data_t KeyboardReport; - - /* Select keyboard data pipe */ - Pipe_SelectPipe(KEYBOARD_DATAPIPE); - - /* 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()) - { - /* Read in keyboard report data */ - Pipe_Read_Stream_LE(&KeyboardReport, sizeof(KeyboardReport)); - - /* 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); - - /* Check if a key has been pressed */ - if (KeyboardReport.KeyCode) - { - /* Toggle status LED to indicate keypress */ - if (LEDs_GetLEDs() & LEDS_LED2) - LEDs_TurnOffLEDs(LEDS_LED2); - else - LEDs_TurnOnLEDs(LEDS_LED2); - - char PressedKey = 0; - - /* Retrieve pressed key character if alphanumeric */ - if ((KeyboardReport.KeyCode >= 0x04) && (KeyboardReport.KeyCode <= 0x1D)) - PressedKey = (KeyboardReport.KeyCode - 0x04) + 'A'; - else if ((KeyboardReport.KeyCode >= 0x1E) && (KeyboardReport.KeyCode <= 0x27)) - PressedKey = (KeyboardReport.KeyCode - 0x1E) + '0'; - else if (KeyboardReport.KeyCode == 0x2C) - PressedKey = ' '; - else if (KeyboardReport.KeyCode == 0x28) - 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 set the configuration of the attached device after it has been enumerated, and to read and process - * HID reports from the device and display the results onto the board LEDs. - */ -TASK(USB_Keyboard_Host) -{ - uint8_t ErrorCode; - - switch (USB_HostState) - { - case HOST_STATE_Addressed: - /* Standard request to set the device configuration to configuration 1 */ - USB_ControlRequest = (USB_Request_Header_t) - { - .bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_STANDARD | REQREC_DEVICE), - .bRequest = REQ_SetConfiguration, - .wValue = 1, - .wIndex = 0, - .wLength = 0, - }; - - /* Select the control pipe for the request transfer */ - Pipe_SelectPipe(PIPE_CONTROLPIPE); - - /* Send the request, display error and wait for device detach if request fails */ - if ((ErrorCode = USB_Host_SendControlRequest(NULL)) != HOST_SENDCONTROL_Successful) - { - puts_P(PSTR("Control Error (Set Configuration).\r\n")); - printf_P(PSTR(" -- Error Code: %d\r\n"), ErrorCode); - - /* Indicate error status */ - UpdateStatus(Status_EnumerationError); - - /* Wait until USB device disconnected */ - while (USB_IsConnected); - break; - } - - USB_HostState = HOST_STATE_Configured; - break; - case HOST_STATE_Configured: - puts_P(PSTR("Getting Config Data.\r\n")); - - /* Get and process the configuration descriptor data */ - if ((ErrorCode = ProcessConfigurationDescriptor()) != SuccessfulConfigRead) - { - if (ErrorCode == ControlError) - puts_P(PSTR("Control Error (Get Configuration).\r\n")); - else - puts_P(PSTR("Invalid Device.\r\n")); - - printf_P(PSTR(" -- Error Code: %d\r\n"), ErrorCode); - - /* Indicate error status */ - UpdateStatus(Status_EnumerationError); - - /* Wait until USB device disconnected */ - while (USB_IsConnected); - break; - } - - /* HID class request to set the keyboard protocol to the Boot Protocol */ - USB_ControlRequest = (USB_Request_Header_t) - { - .bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE), - .bRequest = REQ_SetProtocol, - .wValue = 0, - .wIndex = 0, - .wLength = 0, - }; - - /* Select the control pipe for the request transfer */ - Pipe_SelectPipe(PIPE_CONTROLPIPE); - - /* Send the request, display error and wait for device detach if request fails */ - if ((ErrorCode = USB_Host_SendControlRequest(NULL)) != HOST_SENDCONTROL_Successful) - { - puts_P(PSTR("Control Error (Set Protocol).\r\n")); - printf_P(PSTR(" -- Error Code: %d\r\n"), ErrorCode); - - /* Indicate error status */ - UpdateStatus(Status_EnumerationError); - - /* Wait until USB device disconnected */ - while (USB_IsConnected); - break; - } - - puts_P(PSTR("Keyboard Enumerated.\r\n")); - - USB_HostState = HOST_STATE_Ready; - break; - case HOST_STATE_Ready: - /* If a report has been received, read and process it */ - ReadNextReport(); - - break; - } + LEDs_SetAllLEDs(LEDMASK_USB_ERROR); }