/** | |
* \file | |
* | |
* \brief Main functions for Keyboard example | |
* | |
* Copyright (C) 2009 Atmel Corporation. All rights reserved. | |
* | |
* \page License | |
* | |
* Redistribution and use in source and binary forms, with or without | |
* modification, are permitted provided that the following conditions are met: | |
* | |
* 1. Redistributions of source code must retain the above copyright notice, | |
* this list of conditions and the following disclaimer. | |
* | |
* 2. Redistributions in binary form must reproduce the above copyright notice, | |
* this list of conditions and the following disclaimer in the documentation | |
* and/or other materials provided with the distribution. | |
* | |
* 3. The name of Atmel may not be used to endorse or promote products derived | |
* from this software without specific prior written permission. | |
* | |
* 4. This software may only be redistributed and used in connection with an | |
* Atmel AVR product. | |
* | |
* THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED | |
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE | |
* EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR | |
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | |
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | |
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH | |
* DAMAGE. | |
*/ | |
#include "compiler.h" | |
#include "preprocessor.h" | |
#include "board.h" | |
#include "gpio.h" | |
#include "sysclk.h" | |
#include "sleepmgr.h" | |
#include "conf_usb.h" | |
#include "udc.h" | |
#include "udd.h" | |
#include "ui.h" | |
static bool main_b_kbd_enable = false; | |
/*! \brief Main function. Execution starts here. | |
*/ | |
int main(void) | |
{ | |
irq_initialize_vectors(); | |
cpu_irq_enable(); | |
// Initialize the sleep manager | |
sleepmgr_init(); | |
sysclk_init(); | |
board_init(); | |
ui_init(); | |
ui_powerdown(); | |
// Start USB stack to authorize VBus monitoring | |
udc_start(); | |
if (!udc_include_vbus_monitoring()) { | |
// VBUS monitoring is not available on this product | |
// thereby VBUS has to be considered as present | |
main_vbus_action(true); | |
} | |
// The main loop manages only the power mode | |
// because the USB management is done by interrupt | |
while (true) { | |
sleepmgr_enter_sleep(); | |
#ifdef USB_DEVICE_LOW_SPEED | |
// No USB "Keep a live" interrupt available in low speed | |
// to scan keyboard interface then use main loop | |
if (main_b_kbd_enable) { | |
static uint16_t virtual_sof_sub = 0; | |
static uint16_t virtual_sof = 0; | |
if (700 == virtual_sof_sub++) { | |
virtual_sof_sub = 0; | |
ui_process(virtual_sof++); | |
} | |
} | |
#endif | |
} | |
} | |
void main_vbus_action(bool b_high) | |
{ | |
if (b_high) { | |
// Attach USB Device | |
udc_attach(); | |
} else { | |
// VBUS not present | |
udc_detach(); | |
} | |
} | |
void main_suspend_action(void) | |
{ | |
ui_powerdown(); | |
} | |
void main_resume_action(void) | |
{ | |
ui_wakeup(); | |
} | |
void main_sof_action(void) | |
{ | |
if (!main_b_kbd_enable) | |
return; | |
ui_process(udd_get_frame_number()); | |
} | |
void main_remotewakeup_enable(void) | |
{ | |
ui_wakeup_enable(); | |
} | |
void main_remotewakeup_disable(void) | |
{ | |
ui_wakeup_disable(); | |
} | |
bool main_kbd_enable(void) | |
{ | |
main_b_kbd_enable = true; | |
return true; | |
} | |
void main_kbd_disable(void) | |
{ | |
main_b_kbd_enable = false; | |
} | |
/** | |
* \mainpage ASF USB Device HID Keyboard | |
* | |
* \section intro Introduction | |
* This example shows how to implement a USB Device HID Keyboard | |
* on AVR products with USB module. | |
* The application note AVR4903 provides information about this implementation. | |
* | |
* \section startup Startup | |
* The example uses the buttons or sensors available on the board | |
* to simulate a standard keyboard. | |
* After loading firmware, connect hardware board (EVKxx,XPlain,...) to the USB Host. | |
* When connected to a USB host system this application provides a keyboard application | |
* in the Unix/Mac/Windows operating systems. | |
* This example uses the native HID driver for these operating systems. | |
* | |
* \copydoc UI | |
* | |
* \section example About example | |
* | |
* The example uses the following module groups: | |
* - Basic modules: | |
* Startup, board, clock, interrupt, power management | |
* - USB Device stack and HID modules: | |
* <br>services/usb/ | |
* <br>services/usb/udc/ | |
* <br>services/usb/class/hid/ | |
* <br>services/usb/class/hid/keyboard/ | |
* - Specific implementation: | |
* - main.c, | |
* <br>initializes clock | |
* <br>initializes interrupt | |
* <br>\subpage power_management | |
* <br>manages UI | |
* - specific implementation for each target "./examples/product_board/": | |
* - conf_foo.h configuration of each module | |
* - ui.c implement of user's interface (buttons, leds) | |
*/ |