void usb_on_isr(int vector, void* param)
{
int i;
EXO* exo = param;
unsigned int sta = OTG_FS_GENERAL->INTSTS;
//first two most often called
if ((OTG_FS_GENERAL->INTMSK & OTG_FS_GENERAL_INTMSK_RXFLVLM) && (sta & OTG_FS_GENERAL_INTSTS_RXFLVL))
{
//mask interrupts, will be umasked by process after FIFO read
OTG_FS_GENERAL->INTMSK &= ~OTG_FS_GENERAL_INTMSK_RXFLVLM;
stm32_otg_on_isr_rx(exo);
return;
}
for (i = 0; i < USB_EP_COUNT_MAX; ++i)
if (exo->usb.in[i] != NULL && exo->usb.in[i]->io_active && (OTG_FS_DEVICE->INEP[i].INT & OTG_FS_DEVICE_ENDPOINT_INT_XFRC))
{
OTG_FS_DEVICE->INEP[i].INT = OTG_FS_DEVICE_ENDPOINT_INT_XFRC;
if (exo->usb.in[i]->size >= exo->usb.in[i]->io->data_size)
{
exo->usb.in[i]->io_active = false;
iio_complete(exo->usb.device, HAL_IO_CMD(HAL_USB, IPC_WRITE), USB_EP_IN | i, exo->usb.in[i]->io);
exo->usb.in[i]->io = NULL;
}
else
stm32_otg_tx(exo, USB_EP_IN | i);
return;
}
//rarely called
if (sta & OTG_FS_GENERAL_INTSTS_ENUMDNE)
{
usb_enumdne(exo);
OTG_FS_GENERAL->INTSTS |= OTG_FS_GENERAL_INTSTS_ENUMDNE;
return;
}
if ((sta & OTG_FS_GENERAL_INTSTS_USBSUSP) && (OTG_FS_GENERAL->INTMSK & OTG_FS_GENERAL_INTMSK_USBSUSPM))
{
usb_suspend(exo);
OTG_FS_GENERAL->INTSTS |= OTG_FS_GENERAL_INTSTS_USBSUSP;
return;
}
if (sta & OTG_FS_GENERAL_INTSTS_WKUPINT)
{
usb_wakeup(exo);
OTG_FS_GENERAL->INTSTS |= OTG_FS_GENERAL_INTSTS_WKUPINT | OTG_FS_GENERAL_INTSTS_USBSUSP;
}
OTG_FS_GENERAL->OTGINT = 0xFFFFFF;// clear other request
}
app_states_t app_susp_we(void)
{
// wdp_host_rx_setup(WDP_RX_SUSPEND); // Set up WDP low power receive mode
usb_wakeup();
return APP_NORMAL;
CE_LOW();
hal_nrf_set_power_mode(HAL_NRF_PWR_DOWN); // Power up radio
RFCKEN = 0; // disable the radio clock
// usb_wakeup();
// return APP_NORMAL;
// Minimize the powerconsumption by powering down the MCU
cklf_gpio_wakeup(0x0000, 0x0000); // GPIO wakeup off
cklf_rtc_disable();
cklf_rtc_init(0x00, 0x1FFF); // Setup power down timeout to app. 1 s
cpu_pwr_down(); // MCU goto sleep
WUF = 0; // Clear WU flag
return APP_SUSP_WE;
}
