/* Name: main.c * Project: hid-mouse, a very simple HID example * Author: Christian Starkjohann * Creation Date: 2008-04-07 * Tabsize: 4 * Copyright: (c) 2008 by OBJECTIVE DEVELOPMENT Software GmbH * License: GNU GPL v2 (see License.txt), GNU GPL v3 or proprietary (CommercialLicense.txt) * This Revision: $Id: main.c 790 2010-05-30 21:00:26Z cs $ */ #include <stdint.h> #include <avr/interrupt.h> #include <avr/power.h> #include <avr/wdt.h> #include <avr/sleep.h> #include <usbdrv/usbdrv.h> #include "vusb.h" #include "keyboard.h" #include "host.h" #include "timer.h" #include "print.h" #include "suspend.h" #include "wait.h" #include "sendchar.h" #ifdef SLEEP_LED_ENABLE # include "sleep_led.h" #endif #ifdef CONSOLE_ENABLE void console_task(void); #endif #ifdef RAW_ENABLE void raw_hid_task(void); #endif /* This is from main.c of USBaspLoader */ static void initForUsbConnectivity(void) { uint8_t i = 0; usbInit(); /* enforce USB re-enumerate: */ usbDeviceDisconnect(); /* do this while interrupts are disabled */ while (--i) { /* fake USB disconnect for > 250 ms */ wdt_reset(); wait_ms(1); } usbDeviceConnect(); } static void usb_remote_wakeup(void) { cli(); int8_t ddr_orig = USBDDR; USBOUT |= (1 << USBMINUS); USBDDR = ddr_orig | USBMASK; USBOUT ^= USBMASK; wait_ms(25); USBOUT ^= USBMASK; USBDDR = ddr_orig; USBOUT &= ~(1 << USBMINUS); sei(); } /** \brief Setup USB * * FIXME: Needs doc */ static void setup_usb(void) { initForUsbConnectivity(); // for Console_Task print_set_sendchar(sendchar); } /** \brief Main * * FIXME: Needs doc */ int main(void) __attribute__((weak)); int main(void) { bool suspended = false; #if USB_COUNT_SOF uint16_t last_timer = timer_read(); #endif #ifdef CLKPR // avoid unintentional changes of clock frequency in devices that have a // clock prescaler clock_prescale_set(clock_div_1); #endif keyboard_setup(); host_set_driver(vusb_driver()); setup_usb(); sei(); wait_ms(50); keyboard_init(); #ifdef SLEEP_LED_ENABLE sleep_led_init(); #endif while (1) { #if USB_COUNT_SOF if (usbSofCount != 0) { suspended = false; usbSofCount = 0; last_timer = timer_read(); # ifdef SLEEP_LED_ENABLE sleep_led_disable(); # endif } else { // Suspend when no SOF in 3ms-10ms(7.1.7.4 Suspending of USB1.1) if (timer_elapsed(last_timer) > 5) { suspended = true; # ifdef SLEEP_LED_ENABLE sleep_led_enable(); # endif } } #endif if (!suspended) { usbPoll(); // TODO: configuration process is inconsistent. it sometime fails. // To prevent failing to configure NOT scan keyboard during configuration if (usbConfiguration && usbInterruptIsReady()) { keyboard_task(); } vusb_transfer_keyboard(); #ifdef RAW_ENABLE usbPoll(); if (usbConfiguration && usbInterruptIsReady3()) { raw_hid_task(); } #endif #ifdef CONSOLE_ENABLE usbPoll(); if (usbConfiguration && usbInterruptIsReady3()) { console_task(); } #endif } else if (suspend_wakeup_condition()) { usb_remote_wakeup(); } } }