USB common management drivers

These macros manage the USB controller. More...

Macros
#define	Usb_enable_uid_pin()   (UHWCON |= (1<<UIDE))
	Enable external UID pin.
#define	Usb_disable_uid_pin()   (UHWCON &= ~(1<<UIDE))
	Disable external UID pin.
#define	Usb_force_device_mode()   (Usb_disable_uid_pin(), UHWCON |= (1<<UIMOD))
	Disable external UID pin and force device mode.
#define	Usb_force_host_mode()   (Usb_disable_uid_pin(), UHWCON &= ~(1<<UIMOD))
	Disable external UID pin and force host mode.
#define	Usb_enable_uvcon_pin()   (UHWCON |= (1<<UVCONE))
	Enable external UVCON pin.
#define	Usb_disable_uvcon_pin()   (UHWCON &= ~(1<<UVCONE))
	Enable external UVCON pin.
#define	Usb_full_speed_mode()   (UDCON &= ~(1<<LSM))
	Use device full speed mode (default mode)
#define	Usb_low_speed_mode()   (UDCON |= (1<<LSM))
	For device mode, force low speed mode.
#define	Usb_enable()   (USBCON |= ((1<<USBE) | (1<<OTGPADE)))
	Enable both USB interface and Vbus pad.
#define	Usb_disable()   (USBCON &= ~((1<<USBE) | (1<<OTGPADE)))
	Disable both USB interface and Vbus pad.
#define	Usb_enable_vbus_pad()   (USBCON |= (1<<OTGPADE))
	Enable VBUS pad.
#define	Usb_disable_vbus_pad()   (USBCON &= ~(1<<OTGPADE))
	Disable VBUS pad.
#define	Usb_freeze_clock()   (USBCON |= (1<<FRZCLK))
	Stop internal USB clock in interface (freeze the interface register)
#define	Usb_get_general_interrupt()   (USBINT & (USBCON & MSK_IDTE_VBUSTE))
	returns the USB general interrupts (interrupt enabled)
#define	Usb_ack_all_general_interrupt()   (USBINT = ~(USBCON & MSK_IDTE_VBUSTE))
	acks the general interrupts (interrupt enabled)
#define	Usb_get_otg_interrupt()   (OTGINT & OTGIEN)
	returns the USB Pad interrupts (interrupt enabled)
#define	Usb_ack_all_otg_interrupt()   (OTGINT = ~OTGIEN)
	acks the USB Pad interrupts (interrupt enabled)
#define	Usb_enable_vbus()   (OTGCON |= (1<<VBUSREQ))
	requests for VBus activation
#define	Usb_disable_vbus()   (OTGCON |= (1<<VBUSRQC))
	requests for VBus desactivation
#define	Usb_enable_manual_vbus()   (PORTE|=0x80,DDRE|=0x80,Usb_disable_uvcon_pin())
	Manually request VBUS without UVCON signal from USB interface.
#define	Usb_device_initiate_hnp()   (OTGCON |= (1<<HNPREQ))
	initiates a Host Negociation Protocol
#define	Usb_host_accept_hnp()   (OTGCON |= (1<<HNPREQ))
	accepts a Host Negociation Protocol
#define	Usb_host_reject_hnp()   (OTGCON &= ~(1<<HNPREQ))
	rejects a Host Negociation Protocol
#define	Usb_device_initiate_srp()   (OTGCON |= (1<<SRPREQ))
	initiates a Session Request Protocol
#define	Usb_select_vbus_srp_method()   (OTGCON |= (1<<SRPSEL))
	selects VBus as SRP method
#define	Usb_select_data_srp_method()   (OTGCON &= ~(1<<SRPSEL))
	selects data line as SRP method
#define	Usb_enable_vbus_hw_control()   (OTGCON &= ~(1<<VBUSHWC))
	enables hardware control on VBus
#define	Usb_disable_vbus_hw_control()   (OTGCON |= (1<<VBUSHWC))
	disables hardware control on VBus
#define	Is_usb_vbus_enabled()   ((OTGCON & (1<<VBUSREQ)) ? TRUE : FALSE)
	tests if VBus has been requested
#define	Is_usb_hnp()   ((OTGCON & (1<<HNPREQ)) ? TRUE : FALSE)
	tests if a HNP occurs
#define	Is_usb_device_srp()   ((OTGCON & (1<<SRPREQ)) ? TRUE : FALSE)
	tests if a SRP from device occurs
#define	Usb_enable_suspend_time_out_interrupt()   (OTGIEN |= (1<<STOE))
	enables suspend time out interrupt
#define	Usb_disable_suspend_time_out_interrupt()   (OTGIEN &= ~(1<<STOE))
	disables suspend time out interrupt
#define	Usb_ack_suspend_time_out_interrupt()   (OTGINT &= ~(1<<STOI))
	acks suspend time out interrupt
#define	Is_usb_suspend_time_out_interrupt()   ((OTGINT & (1<<STOI)) ? TRUE : FALSE)
	tests if a suspend time out occurs
#define	Usb_enable_hnp_error_interrupt()   (OTGIEN |= (1<<HNPERRE))
	enables HNP error interrupt
#define	Usb_disable_hnp_error_interrupt()   (OTGIEN &= ~(1<<HNPERRE))
	disables HNP error interrupt
#define	Usb_ack_hnp_error_interrupt()   (OTGINT &= ~(1<<HNPERRI))
	acks HNP error interrupt
#define	Is_usb_hnp_error_interrupt()   ((OTGINT & (1<<HNPERRI)) ? TRUE : FALSE)
	tests if a HNP error occurs
#define	Usb_enable_role_exchange_interrupt()   (OTGIEN |= (1<<ROLEEXE))
	enables role exchange interrupt
#define	Usb_disable_role_exchange_interrupt()   (OTGIEN &= ~(1<<ROLEEXE))
	disables role exchange interrupt
#define	Usb_ack_role_exchange_interrupt()   (OTGINT &= ~(1<<ROLEEXI))
	acks role exchange interrupt
#define	Is_usb_role_exchange_interrupt()   ((OTGINT & (1<<ROLEEXI)) ? TRUE : FALSE)
	tests if a role exchange occurs
#define	Usb_enable_bconnection_error_interrupt()   (OTGIEN |= (1<<BCERRE))
	enables B device connection error interrupt
#define	Usb_disable_bconnection_error_interrupt()   (OTGIEN &= ~(1<<BCERRE))
	disables B device connection error interrupt
#define	Usb_ack_bconnection_error_interrupt()   (OTGINT &= ~(1<<BCERRI))
	acks B device connection error interrupt
#define	Is_usb_bconnection_error_interrupt()   ((OTGINT & (1<<BCERRI)) ? TRUE : FALSE)
	tests if a B device connection error occurs
#define	Usb_enable_vbus_error_interrupt()   (OTGIEN |= (1<<VBERRE))
	enables VBus error interrupt
#define	Usb_disable_vbus_error_interrupt()   (OTGIEN &= ~(1<<VBERRE))
	disables VBus error interrupt
#define	Usb_ack_vbus_error_interrupt()   (OTGINT &= ~(1<<VBERRI))
	acks VBus error interrupt
#define	Is_usb_vbus_error_interrupt()   ((OTGINT & (1<<VBERRI)) ? TRUE : FALSE)
	tests if a VBus error occurs
#define	Usb_enable_srp_interrupt()   (OTGIEN |= (1<<SRPE))
	enables SRP interrupt
#define	Usb_disable_srp_interrupt()   (OTGIEN &= ~(1<<SRPE))
	disables SRP interrupt
#define	Usb_ack_srp_interrupt()   (OTGINT &= ~(1<<SRPI))
	acks SRP interrupt
#define	Is_usb_srp_interrupt()   ((OTGINT & (1<<SRPI)) ? TRUE : FALSE)
	tests if a SRP occurs

Detailed Description

These macros manage the USB controller.