845953cc67
* V-USB remote wakeup Backport from tmk/tmk_keyboard@391c979be7 * Change vusb.c remote wake config as per fauxpark's suggestion
141 lines
3.6 KiB
C
141 lines
3.6 KiB
C
/* Name: main.c
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* Project: hid-mouse, a very simple HID example
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* Author: Christian Starkjohann
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* Creation Date: 2008-04-07
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* Tabsize: 4
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* Copyright: (c) 2008 by OBJECTIVE DEVELOPMENT Software GmbH
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* License: GNU GPL v2 (see License.txt), GNU GPL v3 or proprietary (CommercialLicense.txt)
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* This Revision: $Id: main.c 790 2010-05-30 21:00:26Z cs $
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*/
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#include <stdint.h>
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#include <avr/interrupt.h>
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#include <avr/wdt.h>
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#include <avr/sleep.h>
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#include <util/delay.h>
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#include "usbdrv.h"
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#include "oddebug.h"
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#include "vusb.h"
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#include "keyboard.h"
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#include "host.h"
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#include "timer.h"
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#include "uart.h"
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#include "debug.h"
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#include "suspend.h"
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#ifdef SLEEP_LED_ENABLE
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# include "sleep_led.h"
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#endif
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#define UART_BAUD_RATE 115200
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/* This is from main.c of USBaspLoader */
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static void initForUsbConnectivity(void) {
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uint8_t i = 0;
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usbInit();
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/* enforce USB re-enumerate: */
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usbDeviceDisconnect(); /* do this while interrupts are disabled */
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while (--i) { /* fake USB disconnect for > 250 ms */
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wdt_reset();
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_delay_ms(1);
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}
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usbDeviceConnect();
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sei();
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}
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void usb_remote_wakeup(void) {
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cli();
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int8_t ddr_orig = USBDDR;
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USBOUT |= (1 << USBMINUS);
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USBDDR = ddr_orig | USBMASK;
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USBOUT ^= USBMASK;
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_delay_ms(25);
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USBOUT ^= USBMASK;
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USBDDR = ddr_orig;
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USBOUT &= ~(1 << USBMINUS);
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sei();
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}
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int main(void) {
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bool suspended = false;
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#if USB_COUNT_SOF
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uint16_t last_timer = timer_read();
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#endif
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#ifdef CLKPR
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// avoid unintentional changes of clock frequency in devices that have a
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// clock prescaler
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CLKPR = 0x80, CLKPR = 0;
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#endif
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#ifndef NO_UART
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uart_init(UART_BAUD_RATE);
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#endif
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keyboard_setup();
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host_set_driver(vusb_driver());
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debug("initForUsbConnectivity()\n");
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initForUsbConnectivity();
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keyboard_init();
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#ifdef SLEEP_LED_ENABLE
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sleep_led_init();
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#endif
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debug("main loop\n");
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while (1) {
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#if USB_COUNT_SOF
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if (usbSofCount != 0) {
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suspended = false;
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usbSofCount = 0;
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last_timer = timer_read();
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# ifdef SLEEP_LED_ENABLE
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sleep_led_disable();
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# endif
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} else {
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// Suspend when no SOF in 3ms-10ms(7.1.7.4 Suspending of USB1.1)
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if (timer_elapsed(last_timer) > 5) {
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suspended = true;
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# ifdef SLEEP_LED_ENABLE
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sleep_led_enable();
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# endif
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/*
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uart_putchar('S');
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_delay_ms(1);
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cli();
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set_sleep_mode(SLEEP_MODE_PWR_DOWN);
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sleep_enable();
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sleep_bod_disable();
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sei();
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sleep_cpu();
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sleep_disable();
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_delay_ms(10);
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uart_putchar('W');
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*/
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}
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}
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#endif
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if (!suspended) {
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usbPoll();
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// TODO: configuration process is incosistent. it sometime fails.
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// To prevent failing to configure NOT scan keyboard during configuration
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if (usbConfiguration && usbInterruptIsReady()) {
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keyboard_task();
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}
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vusb_transfer_keyboard();
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#ifdef RAW_ENABLE
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usbPoll();
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if (usbConfiguration && usbInterruptIsReady3()) {
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raw_hid_task();
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}
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#endif
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} else if (suspend_wakeup_condition()) {
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usb_remote_wakeup();
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}
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}
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}
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