/**
* Check for some event triggering the shutdown.
*
* It can be either a long power button press or a shutdown triggered from the
* AP and detected by reading POWER_GOOD.
*
* @return non-zero if a shutdown should happen, 0 if not
*/
static int check_for_power_off_event(void)
{
timestamp_t now;
int pressed = 0;
int ret = 0;
/*
* Check for power button press.
*/
if (power_button_is_pressed()) {
pressed = 1;
} else if (power_request == POWER_REQ_OFF) {
power_request = POWER_REQ_NONE;
return 4; /* return non-zero for shudown down */
}
#ifdef HAS_TASK_KEYSCAN
/* Dis/Enable keyboard scanning when the power button state changes */
if (!pressed || pressed != power_button_was_pressed)
keyboard_scan_enable(!pressed, KB_SCAN_DISABLE_POWER_BUTTON);
#endif
now = get_time();
if (pressed) {
if (!power_button_was_pressed) {
power_off_deadline.val = now.val + DELAY_FORCE_SHUTDOWN;
CPRINTS("power waiting for long press %u",
power_off_deadline.le.lo);
/* Ensure we will wake up to check the power key */
timer_arm(power_off_deadline, TASK_ID_CHIPSET);
} else if (timestamp_expired(power_off_deadline, &now)) {
power_off_deadline.val = 0;
CPRINTS("power off after long press now=%u, %u",
now.le.lo, power_off_deadline.le.lo);
return 2;
}
} else if (power_button_was_pressed) {
CPRINTS("power off cancel");
timer_cancel(TASK_ID_CHIPSET);
}
/* POWER_GOOD released by AP : shutdown immediately */
if (!power_has_signals(IN_POWER_GOOD)) {
if (power_button_was_pressed)
timer_cancel(TASK_ID_CHIPSET);
ret = 3;
}
power_button_was_pressed = pressed;
return ret;
}
/**
* kvm_timer_sync_hwstate - sync timer state from cpu
* @vcpu: The vcpu pointer
*
* Check if the virtual timer was armed and either schedule a corresponding
* soft timer or inject directly if already expired.
*/
void kvm_timer_sync_hwstate(struct kvm_vcpu *vcpu)
{
struct arch_timer_cpu *timer = &vcpu->arch.timer_cpu;
cycle_t cval, now;
u64 ns;
if ((timer->cntv_ctl & ARCH_TIMER_CTRL_IT_MASK) ||
!(timer->cntv_ctl & ARCH_TIMER_CTRL_ENABLE))
return;
cval = timer->cntv_cval;
now = kvm_phys_timer_read() - vcpu->kvm->arch.timer.cntvoff;
BUG_ON(timer_is_armed(timer));
if (cval <= now) {
/*
* Timer has already expired while we were not
* looking. Inject the interrupt and carry on.
*/
kvm_timer_inject_irq(vcpu);
return;
}
ns = cyclecounter_cyc2ns(timecounter->cc, cval - now);
timer_arm(timer, ns);
}
/*
* Schedule the background timer before calling kvm_vcpu_block, so that this
* thread is removed from its waitqueue and made runnable when there's a timer
* interrupt to handle.
*/
void kvm_timer_schedule(struct kvm_vcpu *vcpu)
{
struct arch_timer_cpu *timer = &vcpu->arch.timer_cpu;
u64 ns;
cycle_t cval, now;
BUG_ON(timer_is_armed(timer));
/*
* No need to schedule a background timer if the guest timer has
* already expired, because kvm_vcpu_block will return before putting
* the thread to sleep.
*/
if (kvm_timer_should_fire(vcpu))
return;
/*
* If the timer is not capable of raising interrupts (disabled or
* masked), then there's no more work for us to do.
*/
if (!kvm_timer_irq_can_fire(vcpu))
return;
/* The timer has not yet expired, schedule a background timer */
cval = timer->cntv_cval;
now = kvm_phys_timer_read() - vcpu->kvm->arch.timer.cntvoff;
ns = cyclecounter_cyc2ns(timecounter->cc,
cval - now,
timecounter->mask,
&timecounter->frac);
timer_arm(timer, ns);
}
/******************************************************
* FunctionName : user_application
* Description : 用户APP程序段
* Parameters : none
* Returns : none
******************************************************/
void user_application()
{
timer0_t timer_led;
timer_disarm(&timer_led);
timer_setfn(&timer_led,(sysTimer0Func)uart_fn,1);
timer_arm(&timer_led,1000,Timer_Status_repeat);
while(true)
{
}
}
/*-------------------------------------------------------------------------
Reset all internal register and variables to a known state.
---------------------------------------------------------------------------*/
void neogeo_cold_reset ( void )
{
neogeo_show_debugger = 0;
if ( neogeo_debugger_enabled )
neogeo_set_runmode ( NEOGEO_RUN_TRACE );
else
neogeo_set_runmode ( NEOGEO_RUN_NORMAL );
if ( neogeo_audio_track )
{
Mix_FreeMusic ( neogeo_audio_track );
neogeo_audio_track = NULL;
}
/* Reset the elapsed time */
neogeo_elapsed_time = ( double ) 0;
/* Wipe clean all RAM */
SDL_memset ( neogeo_RAM, 0, sizeof ( neogeo_RAM ) );
SDL_memset ( neogeo_palette_RAM, 0, sizeof ( neogeo_palette_RAM ) );
SDL_memset ( neogeo_video_RAM, 0, sizeof ( neogeo_video_RAM ) );
SDL_memset ( neogeo_SPR_RAM, 0, sizeof ( neogeo_SPR_RAM ) );
SDL_memset ( neogeo_FIX_RAM, 0, sizeof ( neogeo_FIX_RAM ) );
SDL_memset ( neogeo_z80_RAM, 0, sizeof ( neogeo_z80_RAM ) );
SDL_memset ( neogeo_PCM_RAM, 0, sizeof ( neogeo_PCM_RAM ) );
/* Set fix usage map to all transparent */
SDL_memset ( neogeo_FIX_usage, 0, sizeof( neogeo_FIX_usage ) );
/* CD Unit stuff init */
SDL_memset ( &neogeo_memory_latch[0], 0, sizeof ( neogeo_memory_latch ) );
neogeo_memory_latch_counter = 0;
neogeo_spr_bank_select = 0;
neogeo_pcm_bank_select = 0;
neogeo_video_enable = 1;
neogeo_spr_disable = 0;
neogeo_fix_disable = 0;
/* Video Hardware init */
neogeo_palette_bank = 0;
neogeo_videoram_offset = 0;
neogeo_videoram_modulo = 0;
neogeo_videoram_data = 0;
neogeo_auto_animation_speed = 0;
neogeo_auto_animation_disabled = 0;
neogeo_auto_animation_counter = 0;
neogeo_auto_animation_frame_counter = 0;
neogeo_HIRQ_control = 0;
neogeo_HIRQ_register = 0;
neogeo_screen_position = 0;
/* Clear all pending interrupts */
neogeo_HIRQ_pending = 0;
neogeo_VBL_irq_pending = 0;
neogeo_cdrom_irq1_pending = 0;
neogeo_cdrom_irq2_pending = 0;
neogeo_cdrom_irq_mask = 0;
/* Controllers */
neogeo_joystick_select = 0;
neogeo_controller1 = 0xFF;
neogeo_controller2 = 0xFF;
neogeo_controller3 = 0x0F;
/* DMA */
SDL_memset ( &neogeo_dma_config[0], 0, sizeof ( Uint16 ) * 9 );
neogeo_dma_source = 0;
neogeo_dma_destination = 0;
neogeo_dma_pattern = 0;
neogeo_dma_length = 0;
/* CDROM */
neogeo_cdrom_response_pointer = 9;
neogeo_cdrom_command_pointer = 0;
neogeo_cdrom_data_strobe = 0;
SDL_memset ( &neogeo_cdrom_response[0], 0, sizeof ( Uint8 ) * 5 );
SDL_memset ( &neogeo_cdrom_command[0], 0, sizeof ( Uint8 ) * 5 );
neogeo_cdrom_register_select = 0;
neogeo_cdrom_register_pointer = 0;
neogeo_cdrom_stop();
/* ROM Vectors enabled at boot time*/
memory_regions[MEMORY_VECTORS_INDEX].Handlers = &neogeo_ROM_handlers;
/* Double Dragon Fix */
if ( Fix_DoubleDragon )
m68k_memcpy ( 0xC00000, 0x110004, 0x800 );
/* Initialize all timers */
timer_arm ( &neogeo_watchdog_timer, M68K_TO_REF ( WATCHDOG_TIMER_DELAY ) );
timer_arm ( &neogeo_drawline_timer, PIXEL_TO_REF ( NEOGEO_HS_START ) );
timer_arm ( &neogeo_screen_timer, PIXEL_TO_REF ( NEOGEO_SCREEN_WIDTH * NEOGEO_SCREEN_HEIGHT ) );
timer_arm ( &neogeo_VBL_timer, PIXEL_TO_REF ( NEOGEO_SCREEN_WIDTH * NEOGEO_VBLANK_LINE ) );
timer_arm ( &neogeo_cdrom_irq1_timer, NEOGEO_CDROM_DELAY );
timer_arm ( &neogeo_cdrom_irq2_timer, PIXEL_TO_REF ( NEOGEO_SCREEN_WIDTH * NEOGEO_CDROM_IRQ2_LINE ) );
timer_set_state ( &neogeo_HIRQ_timer, TIMER_STOPPED );
timer_set_state ( &neogeo_audio_command_timer, TIMER_STOPPED );
timer_set_state ( &neogeo_ym2610_timer_a, TIMER_STOPPED );
timer_set_state ( &neogeo_ym2610_timer_b, TIMER_STOPPED );
/* Reset the 68000 */
m68k_pulse_reset();
/* Disable the z80 */
neogeo_z80_disable = 1;
neogeo_z80_time_to_execute = 0;
neogeo_audio_command = 0;
neogeo_audio_result = 0;
neogeo_z80_time_this_vbl = 0;
/* Reset the YM2610 */
YM2610Reset();
/* Speed limiter init */
neogeo_speed_limiter_setup();
/* Audio init */
neogeo_audio_setup();
}