static irqreturn_t udc_hotplug_irq(int irq, void *dev_id)
{
__gpio_ack_irq(UDC_HOTPLUG_PIN); /* clear interrupt pending status */
del_timer(&udc_timer);
init_timer(&udc_timer);
udc_timer.function = udc_timer_routine;
udc_timer.expires = jiffies + HZ/2; /* about 500 ms */
add_timer(&udc_timer);
return IRQ_HANDLED;
}
static void MMCGpioTask(void *arg)
{
u8 err;
cardstate = CARD_OUT;
cardexsit = 1 ;
while(1)
{
// __intc_mask_irq(48 + MMC_CD_PIN);
printf("Looks like MMC gpio change! \n");
if ( cardstate == CARD_OUT ) //card have inserted!
{
OSTimeDlyHMSM(0,0,0,500);
if ( __gpio_get_pin(MMC_CD_PIN) == 0 ) //card readlly insert!
{
printf("Card readlly insert! \n");
cardstate = CARD_IN;
info_card_in();
MMC_Initialize();
__gpio_as_irq_rise_edge(MMC_CD_PIN);
}
else
__gpio_as_irq_fall_edge(MMC_CD_PIN);
}
else //card have not inserted!
{
OSTimeDlyHMSM(0,0,0,500);
if ( __gpio_get_pin(MMC_CD_PIN) == 1 ) //card readlly out!
{
printf("Card readlly out! \n");
cardstate = CARD_OUT;
info_card_out();
__gpio_as_irq_fall_edge(MMC_CD_PIN);
}
else
__gpio_as_irq_rise_edge(MMC_CD_PIN);
}
__gpio_ack_irq(MMC_CD_PIN);
__intc_ack_irq(48 + MMC_CD_PIN);
__gpio_unmask_irq(MMC_CD_PIN);
OSSemPend(MMCGPIOEvent, 0, &err);
}
}
static void tp_tint_irq(unsigned int irq)
{
int key_num = 0, value0, value1;
__gpio_ack_irq(TP_KEY_TINT);
value0 = read_reg(0x75);
value1 = read_reg(0x76);
value0 &= ATA2508_SENSOR_MASK;
// printf("\nthe value of reg 0x75 is 0x%02x\n", value0);
if (value0 == 0) {
printf("\nRelease key!\n");
return;
}
while(value0 >> 1){
value0 >>= 1;
key_num++;
}
printf("\nPress key %d!\n", key_num);
}
static void mask_and_ack_gpio_irq(unsigned int irq)
{
__gpio_mask_irq(irq - IRQ_GPIO_0);
__gpio_ack_irq(irq - IRQ_GPIO_0);
}
