c68e4dec10
* suspend: suppress wake up keypress Waking the host from suspend is done by pressing any key on the keyboard, the regular key codes assigned to the keys are not important and must not be sent - otherwise they usually end up in password prompts as ghost characters that have to be deleted again. This commit adds suppression for all keys pressed at the time of wake up. Once a key is released it functions as a regular key again. Signed-off-by: Stefan Kerkmann <karlk90@pm.me> * suspend: update wake up matrix after wake up delay If USB_SUSPEND_WAKEUP_DELAY is set, the keyboard sleeps during wake up - which can be up to multiple seconds. To handle key presses and releases in that time frame we have to handle the following cases: 1. Key not pressed before suspend, and not pressed after wakeup → do nothing (normal case). 2. Key not pressed before suspend, but pressed after wakeup → set the wakeup_matrix bit to 1 (so that the press and release events would be suppressed). 3. Key pressed before suspend, but not pressed after wakeup → do nothing (the release event will be generated on the first matrix_task() call after the wakeup). 4. Key pressed before suspend, and still pressed after wakeup → do nothing (the release event will be generated some time later). Signed-off-by: Stefan Kerkmann <karlk90@pm.me> Co-authored-by: Sergey Vlasov <sigprof@gmail.com> * keyboards: anavi: macropad8: disable snake and rgb_test effects ...to shrink the binary size.
151 lines
3.6 KiB
C
151 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/power.h>
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#include <avr/wdt.h>
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#include <avr/sleep.h>
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#include <usbdrv/usbdrv.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 "debug.h"
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#include "suspend.h"
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#include "wait.h"
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#include "sendchar.h"
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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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wait_ms(1);
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}
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usbDeviceConnect();
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}
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static inline void vusb_send_remote_wakeup(void) {
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cli();
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uint8_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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wait_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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bool vusb_suspended = false;
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/** \brief Setup USB
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*
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* FIXME: Needs doc
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*/
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static void setup_usb(void) {
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initForUsbConnectivity();
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}
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uint16_t sof_timer = 0;
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void protocol_setup(void) {
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#if USB_COUNT_SOF
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sof_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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clock_prescale_set(clock_div_1);
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#endif
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}
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void protocol_pre_init(void) {
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setup_usb();
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sei();
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}
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void protocol_post_init(void) {
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host_set_driver(vusb_driver());
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wait_ms(50);
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}
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static inline bool should_do_suspend(void) {
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#if USB_COUNT_SOF
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if (usbSofCount != 0) {
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usbSofCount = 0;
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sof_timer = timer_read();
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vusb_suspended = false;
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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 (!vusb_suspended && timer_elapsed(sof_timer) > 5) {
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vusb_suspended = true;
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}
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}
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#endif
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return vusb_suspended;
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}
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void protocol_pre_task(void) {
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#if !defined(NO_USB_STARTUP_CHECK)
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if (should_do_suspend()) {
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dprintln("suspending keyboard");
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while (should_do_suspend()) {
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suspend_power_down();
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if (suspend_wakeup_condition()) {
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vusb_send_remote_wakeup();
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# if USB_SUSPEND_WAKEUP_DELAY > 0
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// Some hubs, kvm switches, and monitors do
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// weird things, with USB device state bouncing
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// around wildly on wakeup, yielding race
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// conditions that can corrupt the keyboard state.
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//
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// Pause for a while to let things settle...
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wait_ms(USB_SUSPEND_WAKEUP_DELAY);
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// ...and then update the wakeup matrix again as the waking key
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// might have been released during the delay
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update_matrix_state_after_wakeup();
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# endif
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}
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}
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suspend_wakeup_init();
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}
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#endif
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}
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void protocol_keyboard_task(void) {
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usbPoll();
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// TODO: configuration process is inconsistent. 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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}
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void protocol_post_task(void) {
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// do nothing
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}
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