187 lines
3.9 KiB
C
187 lines
3.9 KiB
C
/* 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 "debug.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 inline void vusb_send_remote_wakeup(void) {
|
|
cli();
|
|
|
|
uint8_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();
|
|
}
|
|
|
|
bool vusb_suspended = false;
|
|
|
|
static inline void vusb_suspend(void) {
|
|
#ifdef SLEEP_LED_ENABLE
|
|
sleep_led_enable();
|
|
#endif
|
|
|
|
suspend_power_down();
|
|
}
|
|
|
|
static inline void vusb_wakeup(void) {
|
|
suspend_wakeup_init();
|
|
|
|
#ifdef SLEEP_LED_ENABLE
|
|
sleep_led_disable();
|
|
#endif
|
|
}
|
|
|
|
/** \brief Setup USB
|
|
*
|
|
* FIXME: Needs doc
|
|
*/
|
|
static void setup_usb(void) {
|
|
initForUsbConnectivity();
|
|
}
|
|
|
|
uint16_t sof_timer = 0;
|
|
|
|
void protocol_setup(void) {
|
|
#if USB_COUNT_SOF
|
|
sof_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
|
|
}
|
|
|
|
void protocol_pre_init(void) {
|
|
setup_usb();
|
|
sei();
|
|
}
|
|
|
|
void protocol_post_init(void) {
|
|
host_set_driver(vusb_driver());
|
|
wait_ms(50);
|
|
}
|
|
|
|
static inline bool should_do_suspend(void) {
|
|
#if USB_COUNT_SOF
|
|
if (usbSofCount != 0) {
|
|
usbSofCount = 0;
|
|
sof_timer = timer_read();
|
|
vusb_suspended = false;
|
|
} else {
|
|
// Suspend when no SOF in 3ms-10ms(7.1.7.4 Suspending of USB1.1)
|
|
if (!vusb_suspended && timer_elapsed(sof_timer) > 5) {
|
|
vusb_suspended = true;
|
|
}
|
|
}
|
|
#endif
|
|
return vusb_suspended;
|
|
}
|
|
|
|
void protocol_task(void) {
|
|
#if !defined(NO_USB_STARTUP_CHECK)
|
|
if (should_do_suspend()) {
|
|
dprintln("suspending keyboard");
|
|
while (should_do_suspend()) {
|
|
vusb_suspend();
|
|
if (suspend_wakeup_condition()) {
|
|
vusb_send_remote_wakeup();
|
|
|
|
# if USB_SUSPEND_WAKEUP_DELAY > 0
|
|
// Some hubs, kvm switches, and monitors do
|
|
// weird things, with USB device state bouncing
|
|
// around wildly on wakeup, yielding race
|
|
// conditions that can corrupt the keyboard state.
|
|
//
|
|
// Pause for a while to let things settle...
|
|
wait_ms(USB_SUSPEND_WAKEUP_DELAY);
|
|
# endif
|
|
}
|
|
}
|
|
vusb_wakeup();
|
|
}
|
|
#endif
|
|
|
|
usbPoll();
|
|
|
|
// TODO: configuration process is inconsistent. it sometime fails.
|
|
// To prevent failing to configure NOT scan keyboard during configuration
|
|
if (usbConfiguration && usbInterruptIsReady()) {
|
|
keyboard_task();
|
|
}
|
|
|
|
#ifdef RAW_ENABLE
|
|
usbPoll();
|
|
|
|
if (usbConfiguration && usbInterruptIsReady4()) {
|
|
raw_hid_task();
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONSOLE_ENABLE
|
|
usbPoll();
|
|
|
|
if (usbConfiguration && usbInterruptIsReady3()) {
|
|
console_task();
|
|
}
|
|
#endif
|
|
}
|