void udd_disable(void) { irqflags_t flags; #ifdef UHD_ENABLE # ifdef USB_ID if (Is_otg_id_host()) { return; // Host mode running, ignore UDD disable } # else if (Is_otg_host_mode_forced()) { return; // Host mode running, ignore UDD disable } # endif #endif flags = cpu_irq_save(); otg_unfreeze_clock(); udd_detach(); #ifndef UDD_NO_SLEEP_MGR sleepmgr_unlock_mode(USBB_SLEEP_MODE_USB_SUSPEND); #endif #ifndef UHD_ENABLE otg_disable(); otg_disable_pad(); sysclk_disable_usb(); // Else the USB clock disable is done by UHC which manage USB dual role #endif cpu_irq_restore(flags); }
void udd_disable(void) { irqflags_t flags; #ifdef UHD_ENABLE # if OTG_ID_IO if (Is_otg_id_host()) { // Freeze clock to switch mode otg_freeze_clock(); udd_detach(); otg_disable(); return; // Host mode running, ignore UDD disable } # else if (Is_otg_host_mode_forced()) { return; // Host mode running, ignore UDD disable } # endif #endif flags = cpu_irq_save(); otg_unfreeze_clock(); udd_detach(); #ifndef UDD_NO_SLEEP_MGR if (udd_b_sleep_initialized) { udd_b_sleep_initialized = false; sleepmgr_unlock_mode(UHDP_SLEEP_MODE_USB_SUSPEND); } #endif #ifndef UHD_ENABLE otg_disable(); sysclk_disable_usb(); pmc_disable_periph_clk(ID_UOTGHS); #endif cpu_irq_restore(flags); }
/** * USB VBus pin change handler */ static void udd_vbus_handler(uint32_t id, uint32_t mask) { if (USB_VBUS_PIO_ID != id || USB_VBUS_PIO_MASK != mask) { return; } /* PIO interrupt status has been cleared, just detect level */ bool b_vbus_high = Is_otg_vbus_high(); if (b_vbus_high) { udd_vbus_monitor_sleep_mode(false); udd_attach(); } else { udd_vbus_monitor_sleep_mode(true); udd_detach(); } UDC_VBUS_EVENT(b_vbus_high); }
void udd_disable(void) { irqflags_t flags; flags = cpu_irq_save(); udd_detach(); udd_disable_periph_ck(); sysclk_disable_usb(); #ifndef UDD_NO_SLEEP_MGR sleepmgr_unlock_mode(UDP_SLEEP_MODE_USB_SUSPEND); #endif # if UDD_VBUS_IO udd_vbus_monitor_sleep_mode(false); # endif cpu_irq_restore(flags); }
ISR(udd_interrupt, AVR32_USBB_IRQ_GROUP, UDD_USB_INT_LEVEL) # endif #endif { if (Is_udd_sof()) { udd_ack_sof(); if (Is_udd_full_speed_mode()) { udc_sof_notify(); } #ifdef UDC_SOF_EVENT UDC_SOF_EVENT(); #endif goto udd_interrupt_end; } if (Is_udd_msof()) { udd_ack_msof(); udc_sof_notify(); goto udd_interrupt_end; } if (udd_ctrl_interrupt()) goto udd_interrupt_end; // Interrupt acked by control endpoint managed #if (0 != USB_DEVICE_MAX_EP) if (udd_ep_interrupt()) goto udd_interrupt_end; // Interrupt acked by bulk/interrupt/isochronous endpoint managed #endif // USB bus reset detection if (Is_udd_reset()) { udd_ack_reset(); // Abort all jobs on-going #if (USB_DEVICE_MAX_EP != 0) udd_ep_job_table_kill(); #endif // Reset USB Device Stack Core udc_reset(); // Reset endpoint control udd_reset_ep_ctrl(); // Reset endpoint control management udd_ctrl_init(); goto udd_interrupt_end; } if (Is_udd_suspend_interrupt_enabled() && Is_udd_suspend()) { otg_unfreeze_clock(); // The suspend interrupt is automatic acked when a wakeup occur udd_disable_suspend_interrupt(); udd_enable_wake_up_interrupt(); otg_freeze_clock(); // Mandatory to exit of sleep mode after a wakeup event udd_sleep_mode(false); // Enter in SUSPEND mode #ifdef UDC_SUSPEND_EVENT UDC_SUSPEND_EVENT(); #endif goto udd_interrupt_end; } if (Is_udd_wake_up_interrupt_enabled() && Is_udd_wake_up()) { // Ack wakeup interrupt and enable suspend interrupt otg_unfreeze_clock(); // Check USB clock ready after suspend and eventually sleep USB clock while( !Is_otg_clock_usable() ); // The wakeup interrupt is automatic acked when a suspend occur udd_disable_wake_up_interrupt(); udd_enable_suspend_interrupt(); udd_sleep_mode(true); // Enter in IDLE mode #ifdef UDC_RESUME_EVENT UDC_RESUME_EVENT(); #endif goto udd_interrupt_end; } if (Is_otg_vbus_transition()) { // Ack Vbus transition and send status to high level otg_unfreeze_clock(); otg_ack_vbus_transition(); otg_freeze_clock(); #ifndef USB_DEVICE_ATTACH_AUTO_DISABLE if (Is_otg_vbus_high()) { udd_attach(); } else { udd_detach(); } #endif #ifdef UDC_VBUS_EVENT UDC_VBUS_EVENT(Is_otg_vbus_high()); #endif goto udd_interrupt_end; } udd_interrupt_end: otg_data_memory_barrier(); #if (defined FREERTOS_USED) // Since we do not know if the user callbacks have used or not FreeRTOS APIs, let's // consider that exiting from the USB interrupt will require a context switch. return pdTRUE; #else return; #endif }