Host Controller Driver (HCD)

Modules
	EHCI
	EHCI driver. All documents sources mentioned here (eg section 3.5) is referring to EHCI Specs unless state otherwise.
	OHCI
	OHCI driver. All documents sources mentioned here (eg section 3.5) is referring to OHCI Specs unless state otherwise.

Data Structures
struct	pipe_handle_t
struct	usbh_enumerate_t

Functions
static bool	pipehandle_is_valid (pipe_handle_t pipe_hdl) ATTR_CONST ATTR_ALWAYS_INLINE ATTR_WARN_UNUSED_RESULT
static bool	pipehandle_is_equal (pipe_handle_t x, pipe_handle_t y) ATTR_CONST ATTR_ALWAYS_INLINE ATTR_WARN_UNUSED_RESULT
tusb_error_t	hcd_init (void) ATTR_WARN_UNUSED_RESULT
void	hcd_isr (uint8_t hostid)
tusb_error_t	hcd_pipe_control_open (uint8_t dev_addr, uint8_t max_packet_size) ATTR_WARN_UNUSED_RESULT
tusb_error_t	hcd_pipe_control_xfer (uint8_t dev_addr, tusb_control_request_t const *p_request, uint8_t data[]) ATTR_WARN_UNUSED_RESULT
tusb_error_t	hcd_pipe_control_close (uint8_t dev_addr) ATTR_WARN_UNUSED_RESULT
pipe_handle_t	hcd_pipe_open (uint8_t dev_addr, tusb_descriptor_endpoint_t const *endpoint_desc, uint8_t class_code) ATTR_WARN_UNUSED_RESULT
tusb_error_t	hcd_pipe_queue_xfer (pipe_handle_t pipe_hdl, uint8_t buffer[], uint16_t total_bytes) ATTR_WARN_UNUSED_RESULT
tusb_error_t	hcd_pipe_xfer (pipe_handle_t pipe_hdl, uint8_t buffer[], uint16_t total_bytes, bool int_on_complete) ATTR_WARN_UNUSED_RESULT
tusb_error_t	hcd_pipe_close (pipe_handle_t pipe_hdl)
bool	hcd_pipe_is_busy (pipe_handle_t pipe_hdl) ATTR_PURE
bool	hcd_pipe_is_error (pipe_handle_t pipe_hdl) ATTR_PURE
bool	hcd_pipe_is_stalled (pipe_handle_t pipe_hdl) ATTR_PURE
uint8_t	hcd_pipe_get_endpoint_addr (pipe_handle_t pipe_hdl) ATTR_PURE
tusb_error_t	hcd_pipe_clear_stall (pipe_handle_t pipe_hdl)
bool	hcd_port_connect_status (uint8_t hostid) ATTR_PURE ATTR_WARN_UNUSED_RESULT
	return the current connect status of roothub port
void	hcd_port_reset (uint8_t hostid)
tusb_speed_t	hcd_port_speed_get (uint8_t hostid) ATTR_PURE ATTR_WARN_UNUSED_RESULT
void	hcd_port_unplug (uint8_t hostid)

Detailed Description