From 791c15cbde954c6918884fbc4440d23ff642fae6 Mon Sep 17 00:00:00 2001 From: Dean Date: Sun, 20 Sep 2009 12:46:26 +0000 Subject: Add KeyboardHost HID Host Class driver demo to the library. git-svn-id: http://lufa-lib.googlecode.com/svn/trunk@830 d5102386-fcda-11dd-9fdb-3debd5008f28 --- Demos/Host/ClassDriver/KeyboardHost/KeyboardHost.c | 217 +++++++++++++++++++++ 1 file changed, 217 insertions(+) create mode 100644 Demos/Host/ClassDriver/KeyboardHost/KeyboardHost.c (limited to 'Demos/Host/ClassDriver/KeyboardHost/KeyboardHost.c') diff --git a/Demos/Host/ClassDriver/KeyboardHost/KeyboardHost.c b/Demos/Host/ClassDriver/KeyboardHost/KeyboardHost.c new file mode 100644 index 00000000..a6605f00 --- /dev/null +++ b/Demos/Host/ClassDriver/KeyboardHost/KeyboardHost.c @@ -0,0 +1,217 @@ +/* + LUFA Library + Copyright (C) Dean Camera, 2009. + + dean [at] fourwalledcubicle [dot] com + www.fourwalledcubicle.com +*/ + +/* + Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com) + + Permission to use, copy, modify, and distribute this software + and its documentation for any purpose and without fee is hereby + granted, 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 KeyboardHost demo. This file contains the main tasks of + * the demo and is responsible for the initial application hardware configuration. + */ + +#include "KeyboardHost.h" + +/** 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, + .DataOUTPipeNumber = 2, + + .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. + */ +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_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 (USB_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; + uint8_t ReportID = 0; + + HID_Host_ReceiveReport(&Keyboard_HID_Interface, false, &ReportID, &KeyboardReport); + + LEDs_ChangeLEDs(LEDS_LED1, (KeyboardReport.Modifier) ? LEDS_LED1 : 0); + + if (KeyboardReport.KeyCode) + { + char PressedKey = 0; + + LEDs_ToggleLEDs(LEDS_LED2); + + /* 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'; + + 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(); + + /* Disable clock division */ + clock_prescale_set(clock_div_1); + + /* Hardware Initialization */ + SerialStream_Init(9600, false); + LEDs_Init(); + USB_Init(); +} + +/** 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_Host_DeviceAttached(void) +{ + puts_P(PSTR("Device Attached.\r\n")); + 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_Host_DeviceUnattached(void) +{ + 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_Host_DeviceEnumerationComplete(void) +{ + 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_Host_HostError(const uint8_t ErrorCode) +{ + USB_ShutDown(); + + printf_P(PSTR(ESC_FG_RED "Host Mode Error\r\n" + " -- Error Code %d\r\n" ESC_FG_WHITE), ErrorCode); + + 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_Host_DeviceEnumerationFailed(const uint8_t ErrorCode, const uint8_t SubErrorCode) +{ + 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); + + LEDs_SetAllLEDs(LEDMASK_USB_ERROR); +} -- cgit v1.2.3