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USB High-Speed Port for device mode (USBHS)

USBHS low-level driver for USB device mode.

USBHS Custom configuration

The following USBHS driver configuration must be included in the conf_usb.h file of the application.

UDD_USB_INT_LEVEL
Option to change the interrupt priority (0 to 15) by default 5 (recommended).

UDD_USB_INT_FUN
Option to fit interrupt function to what defined in exception table.

UDD_ISOCHRONOUS_NB_BANK(ep)
Feature to reduce or increase isochronous endpoints buffering (1 to 3). Default value 2.

UDD_BULK_NB_BANK(ep)
Feature to reduce or increase bulk endpoints buffering (1 to 2). Default value 2.

UDD_INTERRUPT_NB_BANK(ep)
Feature to reduce or increase interrupt endpoints buffering (1 to 2). Default value 1.

UDD_NO_SLEEP_MGR
Feature to work without sleep manager module. Default not defined. Note that with this feature defined sleep manager must not be used in application.

management

The USB driver is fully managed by interrupt and does not request periodique task. Thereby, the USB events use callbacks to transfer the information. The callbacks are declared in static during compilation or in variable during code execution.

Static declarations defined in conf_usb.h:

Dynamic callbacks, called "endpoint job" , are registered in udd_ep_job_t structure via the following functions:

mode management

The Sleep modes authorized :

Data Structures

struct  udd_ep_job_t
 Structure definition about job registered on an endpoint. More...
 

Macros

#define UDD_BULK_NB_BANK(ep)   2
 
#define UDD_BULK_NB_BANK_ERROR
 
#define UDD_EP_BULK_NB_BANK_ERROR(ep)   (UDD_EP_USED(ep) && UDD_EP_ISO_NBANK_ERROR(ep))
 
#define UDD_EP_BULK_NBANK_ERROR(ep)   ( (UDD_BULK_NB_BANK(ep) < 1) || (UDD_BULK_NB_BANK(ep) > 2) )
 
#define UDD_EP_INT_NB_BANK_ERROR(ep)   (UDD_EP_USED(ep) && UDD_EP_ISO_NBANK_ERROR(ep))
 
#define UDD_EP_INT_NBANK_ERROR(ep)   ( (UDD_INTERRUPT_NB_BANK(ep) < 1) || (UDD_INTERRUPT_NB_BANK(ep) > 2) )
 
#define UDD_EP_ISO_NB_BANK_ERROR(ep)   (UDD_EP_USED(ep) && UDD_EP_ISO_NBANK_ERROR(ep))
 
#define UDD_EP_ISO_NBANK_ERROR(ep)
 
#define UDD_EP_NB_BANK_ERROR(ep, type)   (ATPASTE3(UDD_EP_, type, _NB_BANK_ERROR(ep)))
 
#define UDD_INTERRUPT_NB_BANK(ep)   1
 
#define UDD_INTERRUPT_NB_BANK_ERROR
 
#define UDD_ISO_NB_BANK_ERROR
 
#define UDD_ISOCHRONOUS_NB_BANK(ep)   2
 
#define USBHS_DEVEPTCFG_EPDIR_Pos   8
 

Functions

 if (udd_ctrl_interrupt())
 Function called by USBHS interrupt to manage USB Device interrupts. More...
 
 if (udd_ep_interrupt())
 
 if (Is_udd_reset())
 
 if (Is_udd_suspend_interrupt_enabled()&&Is_udd_suspend())
 
 if (Is_udd_wake_up_interrupt_enabled()&&Is_udd_wake_up())
 
void udd_attach (void)
 Attach device to the bus when possible. More...
 
void udd_detach (void)
 Detaches the device from the bus. More...
 
void udd_disable (void)
 Disables the USB Device mode. More...
 
void udd_enable (void)
 Enables the USB Device mode. More...
 
void udd_ep_abort (udd_ep_id_t ep)
 Aborts transfer on going on endpoint. More...
 
bool udd_ep_alloc (udd_ep_id_t ep, uint8_t bmAttributes, uint16_t MaxEndpointSize)
 Configures and enables an endpoint. More...
 
bool udd_ep_clear_halt (udd_ep_id_t ep)
 Clear the halted state of the endpoint ep. More...
 
void udd_ep_free (udd_ep_id_t ep)
 Disables an endpoint. More...
 
bool udd_ep_is_halted (udd_ep_id_t ep)
 Check if the endpoint ep is halted. More...
 
bool udd_ep_run (udd_ep_id_t ep, bool b_shortpacket, uint8_t *buf, iram_size_t buf_size, udd_callback_trans_t callback)
 Allows to receive or send data on an endpoint. More...
 
bool udd_ep_set_halt (udd_ep_id_t ep)
 Set the halted state of the endpoint ep. More...
 
bool udd_ep_wait_stall_clear (udd_ep_id_t ep, udd_callback_halt_cleared_t callback)
 Registers a callback to call when endpoint halt is cleared. More...
 
uint16_t udd_get_frame_number (void)
 Returns the current start of frame number. More...
 
uint16_t udd_get_micro_frame_number (void)
 Returns the current micro start of frame number. More...
 
uint8_t udd_getaddress (void)
 Returns the USB address of device. More...
 
bool udd_include_vbus_monitoring (void)
 Authorizes the VBUS event. More...
 
bool udd_is_high_speed (void)
 Test whether the USB Device Controller is running at high speed or not. More...
 
void udd_send_remotewakeup (void)
 The USB driver sends a resume signal called Upstream Resume. More...
 
void udd_set_address (uint8_t address)
 Changes the USB address of device. More...
 
void udd_set_setup_payload (uint8_t *payload, uint16_t payload_size)
 Load setup payload. More...
 

Variables

udd_interrupt_end __pad0__
 
udd_interrupt_sof_end __pad1__
 

Power management routine.

static bool udd_b_idle
 State of USB line. More...
 
static bool udd_b_sleep_initialized = false
 State of sleep manager. More...
 
static void udd_sleep_mode (bool b_idle)
 Authorize or not the CPU powerdown mode. More...
 
#define USBHS_SLEEP_MODE_USB_SUSPEND   SLEEPMGR_WAIT_FAST
 Definition of sleep levels. More...
 
#define USBHS_SLEEP_MODE_USB_IDLE   SLEEPMGR_SLEEP_WFI
 

VBus monitor routine

static void udd_vbus_handler (uint32_t id, uint32_t mask)
 USB VBus pin change handler. More...
 
#define udd_vbus_monitor_sleep_mode(lock)
 

Control endpoint low level management routine.

This function performs control endpoint mangement.

It handle the SETUP/DATA/HANDSHAKE phases of a control transaction.

enum  udd_ctrl_ep_state_t {
  UDD_EPCTRL_SETUP = 0,
  UDD_EPCTRL_DATA_OUT = 1,
  UDD_EPCTRL_DATA_IN = 2,
  UDD_EPCTRL_HANDSHAKE_WAIT_IN_ZLP = 3,
  UDD_EPCTRL_HANDSHAKE_WAIT_OUT_ZLP = 4,
  UDD_EPCTRL_STALL_REQ = 5
}
 Bit definitions about endpoint control state machine for udd_ep_control_state. More...
 
COMPILER_WORD_ALIGNED
udd_ctrl_request_t 
udd_g_ctrlreq
 Global variable to give and record information about setup request management. More...
 
static udd_ctrl_ep_state_t udd_ep_control_state
 State of the endpoint control management. More...
 
static uint16_t udd_ctrl_prev_payload_buf_cnt
 Total number of data received/sent during data packet phase with previous payload buffers. More...
 
static uint16_t udd_ctrl_payload_buf_cnt
 Number of data received/sent to/from udd_g_ctrlreq.payload buffer. More...
 
static void udd_reset_ep_ctrl (void)
 Reset control endpoint. More...
 
static void udd_ctrl_init (void)
 Reset control endpoint management. More...
 
static void udd_ctrl_setup_received (void)
 Managed reception of SETUP packet on control endpoint. More...
 
static void udd_ctrl_in_sent (void)
 Managed reception of IN packet on control endpoint. More...
 
static void udd_ctrl_out_received (void)
 Managed reception of OUT packet on control endpoint. More...
 
static void udd_ctrl_underflow (void)
 Managed underflow event of IN packet on control endpoint. More...
 
static void udd_ctrl_overflow (void)
 Managed overflow event of OUT packet on control endpoint. More...
 
static void udd_ctrl_stall_data (void)
 Managed stall event of IN/OUT packet on control endpoint. More...
 
static void udd_ctrl_send_zlp_in (void)
 Send a ZLP IN on control endpoint. More...
 
static void udd_ctrl_send_zlp_out (void)
 Send a ZLP OUT on control endpoint. More...
 
static void udd_ctrl_endofrequest (void)
 Call callback associated to setup request. More...
 
static bool udd_ctrl_interrupt (void)
 Main interrupt routine for control endpoint. More...
 

Management of bulk/interrupt/isochronous endpoints

The UDD manages the data transfer on endpoints:

  • Start data tranfer on endpoint with USB Device DMA
  • Send a ZLP packet if requested
  • Call callback registered to signal end of transfer The transfer abort and stall feature are supported.
static udd_ep_job_t udd_ep_job [USB_DEVICE_MAX_EP]
 Array to register a job on bulk/interrupt/isochronous endpoint. More...
 
static void udd_ep_job_table_reset (void)
 Reset all job table. More...
 
static void udd_ep_job_table_kill (void)
 Abort all endpoint jobs on going. More...
 
static void udd_ep_abort_job (udd_ep_id_t ep)
 Abort endpoint job on going. More...
 
static void udd_ep_finish_job (udd_ep_job_t *ptr_job, bool b_abort, uint8_t ep_num)
 Call the callback associated to the job which is finished. More...
 
static void udd_ep_trans_done (udd_ep_id_t ep)
 Start the next transfer if necessary or complet the job associated. More...
 
static bool udd_ep_interrupt (void)
 Main interrupt routine for bulk/interrupt/isochronous endpoints. More...
 

USBHS Device IP properties

These macros give access to IP properties

#define udd_get_endpoint_max_nbr()   (9)
 Get maximal number of endpoints. More...
 
#define UDD_MAX_PEP_NB   (udd_get_endpoint_max_nbr() + 1)
 
#define udd_get_endpoint_bank_max_nbr(ep)   ((ep == 0) ? 1 : (( ep <= 2) ? 3 : 2))
 Get maximal number of banks of endpoints. More...
 
#define udd_get_endpoint_size_max(ep)   (((ep) == 0) ? 64 : 1024)
 Get maximal size of endpoint (3X, 1024/64) More...
 
#define Is_udd_endpoint_dma_supported(ep)   ((((ep) >= 1) && ((ep) <= 7)) ? true : false)
 Get DMA support of endpoints. More...
 
#define Is_udd_endpoint_high_bw_supported(ep)   (((ep) >= 2) ? true : false)
 Get High Band Width support of endpoints. More...
 

USBHS Device speeds management

#define udd_low_speed_enable()   (Set_bits(USBHS->USBHS_DEVCTRL, USBHS_DEVCTRL_LS))
 Enable/disable device low-speed mode. More...
 
#define udd_low_speed_disable()   (Clr_bits(USBHS->USBHS_DEVCTRL, USBHS_DEVCTRL_LS))
 
#define Is_udd_low_speed_enable()   (Tst_bits(USBHS->USBHS_DEVCTRL, USBHS_DEVCTRL_LS))
 Test if device low-speed mode is forced. More...
 
#define udd_high_speed_enable()   do { } while (0)
 
#define udd_high_speed_disable()   do { } while (0)
 
#define Is_udd_full_speed_mode()   true
 

USBHS device attach control

These macros manage the USBHS Device attach.

#define udd_detach_device()   (Set_bits(USBHS->USBHS_DEVCTRL, USBHS_DEVCTRL_DETACH))
 Detaches from USB bus. More...
 
#define udd_attach_device()   (Clr_bits(USBHS->USBHS_DEVCTRL, USBHS_DEVCTRL_DETACH))
 Attaches to USB bus. More...
 
#define Is_udd_detached()   (Tst_bits(USBHS->USBHS_DEVCTRL, USBHS_DEVCTRL_DETACH))
 Test if the device is detached. More...
 

USBHS device bus events control

These macros manage the USBHS Device bus events.

#define udd_initiate_remote_wake_up()   (Set_bits(USBHS->USBHS_DEVCTRL, USBHS_DEVCTRL_RMWKUP))
 Initiates a remote wake-up event. More...
 
#define Is_udd_pending_remote_wake_up()   (Tst_bits(USBHS->USBHS_DEVCTRL, USBHS_DEVCTRL_RMWKUP))
 
#define udd_enable_remote_wake_up_interrupt()   (USBHS->USBHS_DEVIER = USBHS_DEVIER_UPRSMES)
 Manage upstream resume event (=remote wakeup) The USB driver sends a resume signal called "Upstream Resume". More...
 
#define udd_disable_remote_wake_up_interrupt()   (USBHS->USBHS_DEVIDR = USBHS_DEVIDR_UPRSMEC)
 
#define Is_udd_remote_wake_up_interrupt_enabled()   (Tst_bits(USBHS->USBHS_DEVIMR, USBHS_DEVIMR_UPRSME))
 
#define udd_ack_remote_wake_up_start()   (USBHS->USBHS_DEVICR = USBHS_DEVICR_UPRSMC)
 
#define udd_raise_remote_wake_up_start()   (USBHS->USBHS_DEVIFR = USBHS_DEVIFR_UPRSMS)
 
#define Is_udd_remote_wake_up_start()   (Tst_bits(USBHS->USBHS_DEVISR, USBHS_DEVISR_UPRSM))
 
#define udd_enable_resume_interrupt()   (USBHS->USBHS_DEVIER = USBHS_DEVIER_EORSMES)
 Manage downstream resume event (=remote wakeup from host) The USB controller detects a valid "End of Resume" signal initiated by the host. More...
 
#define udd_disable_resume_interrupt()   (USBHS->USBHS_DEVIDR = USBHS_DEVIDR_EORSMEC)
 
#define Is_udd_resume_interrupt_enabled()   (Tst_bits(USBHS->USBHS_DEVIMR, USBHS_DEVIMR_EORSME))
 
#define udd_ack_resume()   (USBHS->USBHS_DEVICR = USBHS_DEVICR_EORSMC)
 
#define udd_raise_resume()   (USBHS->USBHS_DEVIFR = USBHS_DEVIFR_EORSMS)
 
#define Is_udd_resume()   (Tst_bits(USBHS->USBHS_DEVISR, USBHS_DEVISR_EORSM))
 
#define udd_enable_wake_up_interrupt()   (USBHS->USBHS_DEVIER = USBHS_DEVIER_WAKEUPES)
 Manage wake-up event (=usb line activity) The USB controller is reactivated by a filtered non-idle signal from the lines. More...
 
#define udd_disable_wake_up_interrupt()   (USBHS->USBHS_DEVIDR = USBHS_DEVIDR_WAKEUPEC)
 
#define Is_udd_wake_up_interrupt_enabled()   (Tst_bits(USBHS->USBHS_DEVIMR, USBHS_DEVIMR_WAKEUPE))
 
#define udd_ack_wake_up()   (USBHS->USBHS_DEVICR = USBHS_DEVICR_WAKEUPC)
 
#define udd_raise_wake_up()   (USBHS->USBHS_DEVIFR = USBHS_DEVIFR_WAKEUPS)
 
#define Is_udd_wake_up()   (Tst_bits(USBHS->USBHS_DEVISR, USBHS_DEVISR_WAKEUP))
 
#define udd_enable_reset_interrupt()   (USBHS->USBHS_DEVIER = USBHS_DEVIER_EORSTES)
 Manage reset event Set when a USB "End of Reset" has been detected. More...
 
#define udd_disable_reset_interrupt()   (USBHS->USBHS_DEVIDR = USBHS_DEVIDR_EORSTEC)
 
#define Is_udd_reset_interrupt_enabled()   (Tst_bits(USBHS->USBHS_DEVIMR, USBHS_DEVIMR_EORSTE))
 
#define udd_ack_reset()   (USBHS->USBHS_DEVICR = USBHS_DEVICR_EORSTC)
 
#define udd_raise_reset()   (USBHS->USBHS_DEVIFR = USBHS_DEVIFR_EORSTS)
 
#define Is_udd_reset()   (Tst_bits(USBHS->USBHS_DEVISR, USBHS_DEVISR_EORST))
 
#define udd_enable_sof_interrupt()   (USBHS->USBHS_DEVIER = USBHS_DEVIER_SOFES)
 Manage start of frame event. More...
 
#define udd_disable_sof_interrupt()   (USBHS->USBHS_DEVIDR = USBHS_DEVIDR_SOFEC)
 
#define Is_udd_sof_interrupt_enabled()   (Tst_bits(USBHS->USBHS_DEVIMR, USBHS_DEVIMR_SOFE))
 
#define udd_ack_sof()   (USBHS->USBHS_DEVICR = USBHS_DEVICR_SOFC)
 
#define udd_raise_sof()   (USBHS->USBHS_DEVIFR = USBHS_DEVIFR_SOFS)
 
#define Is_udd_sof()   (Tst_bits(USBHS->USBHS_DEVISR, USBHS_DEVISR_SOF))
 
#define udd_frame_number()   (Rd_bitfield(USBHS->USBHS_DEVFNUM, USBHS_DEVFNUM_FNUM_Msk))
 
#define Is_udd_frame_number_crc_error()   (Tst_bits(USBHS->USBHS_DEVFNUM, USBHS_DEVFNUM_FNCERR))
 
#define udd_enable_msof_interrupt()   (USBHS->USBHS_DEVIER = USBHS_DEVIER_MSOFES)
 Manage Micro start of frame event (High Speed Only) More...
 
#define udd_disable_msof_interrupt()   (USBHS->USBHS_DEVIDR = USBHS_DEVIDR_MSOFEC)
 
#define Is_udd_msof_interrupt_enabled()   (Tst_bits(USBHS->USBHS_DEVIMR, USBHS_DEVIMR_MSOFE))
 
#define udd_ack_msof()   (USBHS->USBHS_DEVICR = USBHS_DEVIMR_MSOFE)
 
#define udd_raise_msof()   (USBHS->USBHS_DEVIFR = USBHS_DEVIFR_MSOFS)
 
#define Is_udd_msof()   (Tst_bits(USBHS->USBHS_DEVISR, USBHS_DEVISR_MSOF))
 
#define udd_micro_frame_number()   (Rd_bitfield(USBHS->USBHS_DEVFNUM, (USBHS_DEVFNUM_FNUM_Msk|USBHS_DEVFNUM_MFNUM_Msk)))
 
#define udd_enable_suspend_interrupt()   (USBHS->USBHS_DEVIER = USBHS_DEVIER_SUSPES)
 Manage suspend event. More...
 
#define udd_disable_suspend_interrupt()   (USBHS->USBHS_DEVIDR = USBHS_DEVIDR_SUSPEC)
 
#define Is_udd_suspend_interrupt_enabled()   (Tst_bits(USBHS->USBHS_DEVIMR, USBHS_DEVIMR_SUSPE))
 
#define udd_ack_suspend()   (USBHS->USBHS_DEVICR = USBHS_DEVICR_SUSPC)
 
#define udd_raise_suspend()   (USBHS->USBHS_DEVIFR = USBHS_DEVIFR_SUSPS)
 
#define Is_udd_suspend()   (Tst_bits(USBHS->USBHS_DEVISR, USBHS_DEVISR_SUSP))
 

#define Is_udd_detached ( )    (Tst_bits(USBHS->USBHS_DEVCTRL, USBHS_DEVCTRL_DETACH))

Test if the device is detached.

#define Is_udd_endpoint_dma_supported (   ep)    ((((ep) >= 1) && ((ep) <= 7)) ? true : false)

Get DMA support of endpoints.

Referenced by udd_ep_abort(), udd_ep_alloc(), udd_ep_interrupt(), and udd_ep_run().

#define Is_udd_endpoint_high_bw_supported (   ep)    (((ep) >= 2) ? true : false)

Get High Band Width support of endpoints.

#define Is_udd_frame_number_crc_error ( )    (Tst_bits(USBHS->USBHS_DEVFNUM, USBHS_DEVFNUM_FNCERR))
#define Is_udd_full_speed_mode ( )    true

Referenced by udd_is_high_speed().

#define Is_udd_low_speed_enable ( )    (Tst_bits(USBHS->USBHS_DEVCTRL, USBHS_DEVCTRL_LS))

Test if device low-speed mode is forced.

#define Is_udd_msof ( )    (Tst_bits(USBHS->USBHS_DEVISR, USBHS_DEVISR_MSOF))
#define Is_udd_msof_interrupt_enabled ( )    (Tst_bits(USBHS->USBHS_DEVIMR, USBHS_DEVIMR_MSOFE))
#define Is_udd_pending_remote_wake_up ( )    (Tst_bits(USBHS->USBHS_DEVCTRL, USBHS_DEVCTRL_RMWKUP))
#define Is_udd_remote_wake_up_interrupt_enabled ( )    (Tst_bits(USBHS->USBHS_DEVIMR, USBHS_DEVIMR_UPRSME))
#define Is_udd_remote_wake_up_start ( )    (Tst_bits(USBHS->USBHS_DEVISR, USBHS_DEVISR_UPRSM))
#define Is_udd_reset ( )    (Tst_bits(USBHS->USBHS_DEVISR, USBHS_DEVISR_EORST))
#define Is_udd_reset_interrupt_enabled ( )    (Tst_bits(USBHS->USBHS_DEVIMR, USBHS_DEVIMR_EORSTE))
#define Is_udd_resume ( )    (Tst_bits(USBHS->USBHS_DEVISR, USBHS_DEVISR_EORSM))
#define Is_udd_resume_interrupt_enabled ( )    (Tst_bits(USBHS->USBHS_DEVIMR, USBHS_DEVIMR_EORSME))
#define Is_udd_sof ( )    (Tst_bits(USBHS->USBHS_DEVISR, USBHS_DEVISR_SOF))
#define Is_udd_sof_interrupt_enabled ( )    (Tst_bits(USBHS->USBHS_DEVIMR, USBHS_DEVIMR_SOFE))
#define Is_udd_suspend ( )    (Tst_bits(USBHS->USBHS_DEVISR, USBHS_DEVISR_SUSP))

Referenced by if().

#define Is_udd_suspend_interrupt_enabled ( )    (Tst_bits(USBHS->USBHS_DEVIMR, USBHS_DEVIMR_SUSPE))
#define Is_udd_wake_up ( )    (Tst_bits(USBHS->USBHS_DEVISR, USBHS_DEVISR_WAKEUP))
#define Is_udd_wake_up_interrupt_enabled ( )    (Tst_bits(USBHS->USBHS_DEVIMR, USBHS_DEVIMR_WAKEUPE))
#define udd_ack_msof ( )    (USBHS->USBHS_DEVICR = USBHS_DEVIMR_MSOFE)

Referenced by udd_attach().

#define udd_ack_remote_wake_up_start ( )    (USBHS->USBHS_DEVICR = USBHS_DEVICR_UPRSMC)
#define udd_ack_reset ( )    (USBHS->USBHS_DEVICR = USBHS_DEVICR_EORSTC)

Referenced by if(), and udd_attach().

#define udd_ack_resume ( )    (USBHS->USBHS_DEVICR = USBHS_DEVICR_EORSMC)
#define udd_ack_sof ( )    (USBHS->USBHS_DEVICR = USBHS_DEVICR_SOFC)

Referenced by udd_attach().

#define udd_ack_suspend ( )    (USBHS->USBHS_DEVICR = USBHS_DEVICR_SUSPC)
#define udd_ack_wake_up ( )    (USBHS->USBHS_DEVICR = USBHS_DEVICR_WAKEUPC)

Referenced by udd_attach().

#define udd_attach_device ( )    (Clr_bits(USBHS->USBHS_DEVCTRL, USBHS_DEVCTRL_DETACH))

Attaches to USB bus.

Referenced by udd_attach().

#define UDD_BULK_NB_BANK (   ep)    2

Referenced by udd_ep_alloc().

#define UDD_BULK_NB_BANK_ERROR
Value:
( UDD_EP_NB_BANK_ERROR( 1, BULK) \
|| UDD_EP_NB_BANK_ERROR( 2, BULK) \
|| UDD_EP_NB_BANK_ERROR( 3, BULK) \
|| UDD_EP_NB_BANK_ERROR( 4, BULK) \
|| UDD_EP_NB_BANK_ERROR( 5, BULK) \
|| UDD_EP_NB_BANK_ERROR( 6, BULK) \
|| UDD_EP_NB_BANK_ERROR( 7, BULK) \
|| UDD_EP_NB_BANK_ERROR( 8, BULK) \
|| UDD_EP_NB_BANK_ERROR( 9, BULK) \
|| UDD_EP_NB_BANK_ERROR(10, BULK) \
|| UDD_EP_NB_BANK_ERROR(11, BULK) \
|| UDD_EP_NB_BANK_ERROR(12, BULK) \
|| UDD_EP_NB_BANK_ERROR(13, BULK) \
|| UDD_EP_NB_BANK_ERROR(14, BULK) \
|| UDD_EP_NB_BANK_ERROR(15, BULK) )
#define UDD_EP_NB_BANK_ERROR(ep, type)
Definition: usbhs_device.c:282
#define udd_detach_device ( )    (Set_bits(USBHS->USBHS_DEVCTRL, USBHS_DEVCTRL_DETACH))

Detaches from USB bus.

Referenced by udd_detach().

#define udd_disable_msof_interrupt ( )    (USBHS->USBHS_DEVIDR = USBHS_DEVIDR_MSOFEC)
#define udd_disable_remote_wake_up_interrupt ( )    (USBHS->USBHS_DEVIDR = USBHS_DEVIDR_UPRSMEC)
#define udd_disable_reset_interrupt ( )    (USBHS->USBHS_DEVIDR = USBHS_DEVIDR_EORSTEC)
#define udd_disable_resume_interrupt ( )    (USBHS->USBHS_DEVIDR = USBHS_DEVIDR_EORSMEC)
#define udd_disable_sof_interrupt ( )    (USBHS->USBHS_DEVIDR = USBHS_DEVIDR_SOFEC)
#define udd_disable_suspend_interrupt ( )    (USBHS->USBHS_DEVIDR = USBHS_DEVIDR_SUSPEC)

Referenced by if().

#define udd_disable_wake_up_interrupt ( )    (USBHS->USBHS_DEVIDR = USBHS_DEVIDR_WAKEUPEC)

Referenced by if().

#define udd_enable_msof_interrupt ( )    (USBHS->USBHS_DEVIER = USBHS_DEVIER_MSOFES)

Manage Micro start of frame event (High Speed Only)

Referenced by udd_attach().

#define udd_enable_remote_wake_up_interrupt ( )    (USBHS->USBHS_DEVIER = USBHS_DEVIER_UPRSMES)

Manage upstream resume event (=remote wakeup) The USB driver sends a resume signal called "Upstream Resume".

#define udd_enable_reset_interrupt ( )    (USBHS->USBHS_DEVIER = USBHS_DEVIER_EORSTES)

Manage reset event Set when a USB "End of Reset" has been detected.

Referenced by udd_attach().

#define udd_enable_resume_interrupt ( )    (USBHS->USBHS_DEVIER = USBHS_DEVIER_EORSMES)

Manage downstream resume event (=remote wakeup from host) The USB controller detects a valid "End of Resume" signal initiated by the host.

#define udd_enable_sof_interrupt ( )    (USBHS->USBHS_DEVIER = USBHS_DEVIER_SOFES)

Manage start of frame event.

Referenced by udd_attach().

#define udd_enable_suspend_interrupt ( )    (USBHS->USBHS_DEVIER = USBHS_DEVIER_SUSPES)

Manage suspend event.

Referenced by if(), and udd_attach().

#define udd_enable_wake_up_interrupt ( )    (USBHS->USBHS_DEVIER = USBHS_DEVIER_WAKEUPES)

Manage wake-up event (=usb line activity) The USB controller is reactivated by a filtered non-idle signal from the lines.

Referenced by if(), and udd_attach().

#define UDD_EP_BULK_NB_BANK_ERROR (   ep)    (UDD_EP_USED(ep) && UDD_EP_ISO_NBANK_ERROR(ep))
#define UDD_EP_BULK_NBANK_ERROR (   ep)    ( (UDD_BULK_NB_BANK(ep) < 1) || (UDD_BULK_NB_BANK(ep) > 2) )
#define UDD_EP_INT_NB_BANK_ERROR (   ep)    (UDD_EP_USED(ep) && UDD_EP_ISO_NBANK_ERROR(ep))
#define UDD_EP_INT_NBANK_ERROR (   ep)    ( (UDD_INTERRUPT_NB_BANK(ep) < 1) || (UDD_INTERRUPT_NB_BANK(ep) > 2) )
#define UDD_EP_ISO_NB_BANK_ERROR (   ep)    (UDD_EP_USED(ep) && UDD_EP_ISO_NBANK_ERROR(ep))
#define UDD_EP_ISO_NBANK_ERROR (   ep)
Value:
|| (UDD_ISOCHRONOUS_NB_BANK(ep) > 3) )
#define UDD_ISOCHRONOUS_NB_BANK(ep)
Definition: usbhs_device.c:335
#define UDD_EP_NB_BANK_ERROR (   ep,
  type 
)    (ATPASTE3(UDD_EP_, type, _NB_BANK_ERROR(ep)))
#define udd_frame_number ( )    (Rd_bitfield(USBHS->USBHS_DEVFNUM, USBHS_DEVFNUM_FNUM_Msk))

Referenced by udd_get_frame_number().

#define udd_get_endpoint_bank_max_nbr (   ep)    ((ep == 0) ? 1 : (( ep <= 2) ? 3 : 2))

Get maximal number of banks of endpoints.

#define udd_get_endpoint_max_nbr ( )    (9)

Get maximal number of endpoints.

#define udd_get_endpoint_size_max (   ep)    (((ep) == 0) ? 64 : 1024)

Get maximal size of endpoint (3X, 1024/64)

#define udd_high_speed_disable ( )    do { } while (0)

Referenced by udd_enable().

#define udd_high_speed_enable ( )    do { } while (0)

Referenced by udd_enable().

#define udd_initiate_remote_wake_up ( )    (Set_bits(USBHS->USBHS_DEVCTRL, USBHS_DEVCTRL_RMWKUP))

Initiates a remote wake-up event.

Referenced by udd_send_remotewakeup().

#define UDD_INTERRUPT_NB_BANK (   ep)    1

Referenced by udd_ep_alloc().

#define UDD_INTERRUPT_NB_BANK_ERROR
Value:
|| UDD_EP_NB_BANK_ERROR( 2, INT) \
|| UDD_EP_NB_BANK_ERROR( 3, INT) \
|| UDD_EP_NB_BANK_ERROR( 4, INT) \
|| UDD_EP_NB_BANK_ERROR( 5, INT) \
|| UDD_EP_NB_BANK_ERROR( 6, INT) \
|| UDD_EP_NB_BANK_ERROR( 7, INT) \
|| UDD_EP_NB_BANK_ERROR( 8, INT) \
|| UDD_EP_NB_BANK_ERROR( 9, INT) \
|| UDD_EP_NB_BANK_ERROR(10, INT) \
|| UDD_EP_NB_BANK_ERROR(11, INT) \
|| UDD_EP_NB_BANK_ERROR(12, INT) \
|| UDD_EP_NB_BANK_ERROR(13, INT) \
|| UDD_EP_NB_BANK_ERROR(14, INT) \
|| UDD_EP_NB_BANK_ERROR(15, INT) )
#define UDD_EP_NB_BANK_ERROR(ep, type)
Definition: usbhs_device.c:282
#define UDD_ISO_NB_BANK_ERROR
Value:
|| UDD_EP_NB_BANK_ERROR( 2, ISO) \
|| UDD_EP_NB_BANK_ERROR( 3, ISO) \
|| UDD_EP_NB_BANK_ERROR( 4, ISO) \
|| UDD_EP_NB_BANK_ERROR( 5, ISO) \
|| UDD_EP_NB_BANK_ERROR( 6, ISO) \
|| UDD_EP_NB_BANK_ERROR( 7, ISO) \
|| UDD_EP_NB_BANK_ERROR( 8, ISO) \
|| UDD_EP_NB_BANK_ERROR( 9, ISO) \
|| UDD_EP_NB_BANK_ERROR(10, ISO) \
|| UDD_EP_NB_BANK_ERROR(11, ISO) \
|| UDD_EP_NB_BANK_ERROR(12, ISO) \
|| UDD_EP_NB_BANK_ERROR(13, ISO) \
|| UDD_EP_NB_BANK_ERROR(14, ISO) \
|| UDD_EP_NB_BANK_ERROR(15, ISO) )
#define UDD_EP_NB_BANK_ERROR(ep, type)
Definition: usbhs_device.c:282
#define UDD_ISOCHRONOUS_NB_BANK (   ep)    2

Referenced by udd_ep_alloc().

#define udd_low_speed_disable ( )    (Clr_bits(USBHS->USBHS_DEVCTRL, USBHS_DEVCTRL_LS))

Referenced by udd_enable().

#define udd_low_speed_enable ( )    (Set_bits(USBHS->USBHS_DEVCTRL, USBHS_DEVCTRL_LS))

Enable/disable device low-speed mode.

Referenced by udd_enable().

#define UDD_MAX_PEP_NB   (udd_get_endpoint_max_nbr() + 1)
#define udd_micro_frame_number ( )    (Rd_bitfield(USBHS->USBHS_DEVFNUM, (USBHS_DEVFNUM_FNUM_Msk|USBHS_DEVFNUM_MFNUM_Msk)))
#define udd_raise_msof ( )    (USBHS->USBHS_DEVIFR = USBHS_DEVIFR_MSOFS)
#define udd_raise_remote_wake_up_start ( )    (USBHS->USBHS_DEVIFR = USBHS_DEVIFR_UPRSMS)
#define udd_raise_reset ( )    (USBHS->USBHS_DEVIFR = USBHS_DEVIFR_EORSTS)
#define udd_raise_resume ( )    (USBHS->USBHS_DEVIFR = USBHS_DEVIFR_EORSMS)
#define udd_raise_sof ( )    (USBHS->USBHS_DEVIFR = USBHS_DEVIFR_SOFS)
#define udd_raise_suspend ( )    (USBHS->USBHS_DEVIFR = USBHS_DEVIFR_SUSPS)

Referenced by udd_attach().

#define udd_raise_wake_up ( )    (USBHS->USBHS_DEVIFR = USBHS_DEVIFR_WAKEUPS)
#define udd_vbus_monitor_sleep_mode (   lock)

Referenced by udd_enable(), and udd_vbus_handler().

#define USBHS_DEVEPTCFG_EPDIR_Pos   8
#define USBHS_SLEEP_MODE_USB_IDLE   SLEEPMGR_SLEEP_WFI

Referenced by udd_sleep_mode().

#define USBHS_SLEEP_MODE_USB_SUSPEND   SLEEPMGR_WAIT_FAST

Definition of sleep levels.

Referenced by udd_disable(), and udd_enable().

Bit definitions about endpoint control state machine for udd_ep_control_state.

Enumerator
UDD_EPCTRL_SETUP 

Wait a SETUP packet.

UDD_EPCTRL_DATA_OUT 

Wait a OUT data packet.

UDD_EPCTRL_DATA_IN 

Wait a IN data packet.

UDD_EPCTRL_HANDSHAKE_WAIT_IN_ZLP 

Wait a IN ZLP packet.

UDD_EPCTRL_HANDSHAKE_WAIT_OUT_ZLP 

Wait a OUT ZLP packet.

UDD_EPCTRL_STALL_REQ 

STALL enabled on IN & OUT packet.

if ( udd_ctrl_interrupt()  )

Function called by USBHS interrupt to manage USB Device interrupts.

USB Device interrupt events are splited in three parts:

  • USB line events (SOF, reset, suspend, resume, wakeup)
  • control endpoint events (setup reception, end of data transfer, underflow, overflow, stall)
  • bulk/interrupt/isochronous endpoints events (end of data transfer)

Note: Here, the global interrupt mask is not clear when an USB interrupt is enabled because this one can not be occured during the USB ISR (=during INTX is masked). See Technical reference $3.8.3 Masking interrupt requests in peripheral modules.

if ( udd_ep_interrupt()  )
void udd_attach ( void  )

Attach device to the bus when possible.

Warning
If a VBus control is included in driver, then it will attach device when an acceptable Vbus level from the host is detected.

References cpu_irq_restore(), cpu_irq_save(), Is_otg_clock_usable, otg_freeze_clock, otg_unfreeze_clock, udd_ack_msof, udd_ack_reset, udd_ack_sof, udd_ack_wake_up, udd_attach_device, udd_enable_msof_interrupt, udd_enable_reset_interrupt, udd_enable_sof_interrupt, udd_enable_suspend_interrupt, udd_enable_wake_up_interrupt, udd_raise_suspend, and udd_sleep_mode().

Referenced by udc_attach(), udd_enable(), and udd_vbus_handler().

static void udd_ctrl_endofrequest ( void  )
static

Call callback associated to setup request.

Referenced by udd_ctrl_in_sent(), udd_ctrl_out_received(), and udd_ctrl_setup_received().

static void udd_ctrl_init ( void  )
static

Reset control endpoint management.

Called after a USB line reset or at the end of SETUP request (after ZLP)

References cpu_irq_restore(), cpu_irq_save(), udd_ack_out_received, udd_disable_in_send_interrupt, and UDD_EPCTRL_SETUP.

Referenced by if(), udd_ctrl_in_sent(), udd_ctrl_out_received(), and udd_ctrl_setup_received().

static bool udd_ctrl_interrupt ( void  )
static
static void udd_ctrl_overflow ( void  )
static

Managed overflow event of OUT packet on control endpoint.

References Is_udd_in_send, udd_enable_stall_handshake, and UDD_EPCTRL_HANDSHAKE_WAIT_IN_ZLP.

Referenced by udd_ctrl_interrupt().

static void udd_ctrl_send_zlp_out ( void  )
static
static void udd_ctrl_stall_data ( void  )
static

Managed stall event of IN/OUT packet on control endpoint.

References udd_enable_stall_handshake, and UDD_EPCTRL_STALL_REQ.

Referenced by udd_ctrl_out_received(), and udd_ctrl_setup_received().

static void udd_ctrl_underflow ( void  )
static

Managed underflow event of IN packet on control endpoint.

References Is_udd_out_received, udd_ctrl_send_zlp_in(), udd_enable_stall_handshake, UDD_EPCTRL_DATA_OUT, and UDD_EPCTRL_HANDSHAKE_WAIT_OUT_ZLP.

Referenced by udd_ctrl_interrupt().

void udd_detach ( void  )

Detaches the device from the bus.

The driver must remove pull-up on USB line D- or D+.

References otg_freeze_clock, otg_unfreeze_clock, udd_detach_device, and udd_sleep_mode().

Referenced by udc_detach(), udd_disable(), and udd_vbus_handler().

void udd_ep_abort ( udd_ep_id_t  ep)

Aborts transfer on going on endpoint.

If a transfer is on going, then it is stopped and the callback registered is called to signal the end of transfer. Note: The control endpoint is not authorized.

Parameters
epEndpoint to abort

References Is_udd_endpoint_dma_supported, Is_udd_kill_last, udd_disable_endpoint_dma_interrupt, udd_disable_endpoint_interrupt, udd_disable_in_send_interrupt, udd_disable_out_received_interrupt, udd_endpoint_dma_set_control, udd_ep_abort_job(), udd_kill_last_in_bank, udd_nb_busy_bank, USB_EP_ADDR_MASK, and USB_EP_DIR_IN.

Referenced by udc_req_std_ep_set_feature(), and udd_ep_interrupt().

static void udd_ep_abort_job ( udd_ep_id_t  ep)
static

Abort endpoint job on going.

Parameters
ependpoint number of job to abort

References udd_ep_finish_job(), and USB_EP_ADDR_MASK.

Referenced by udd_ep_abort(), and udd_ep_free().

bool udd_ep_alloc ( udd_ep_id_t  ep,
uint8_t  bmAttributes,
uint16_t  MaxEndpointSize 
)
bool udd_ep_clear_halt ( udd_ep_id_t  ep)

Clear the halted state of the endpoint ep.

After calling this function, any transaction on ep will be handled normally, i.e. a STALL handshake will not be sent, and the data toggle sequence will start at DATA0.

Parameters
epThe ID of the endpoint to be un-halted
Returns
1 if function was successfully done, otherwise 0.

References udd_ep_job_t::busy, udd_ep_job_t::call_nohalt, Is_udd_endpoint_stall_requested, Is_udd_stall, udd_ep_job_t::stall_requested, udd_ack_stall, udd_disable_bank_interrupt, udd_disable_endpoint_interrupt, udd_disable_stall_handshake, udd_enable_endpoint_bank_autoswitch, udd_reset_data_toggle, USB_DEVICE_MAX_EP, and USB_EP_ADDR_MASK.

Referenced by udc_req_std_ep_clear_feature().

static void udd_ep_finish_job ( udd_ep_job_t ptr_job,
bool  b_abort,
uint8_t  ep_num 
)
static

Call the callback associated to the job which is finished.

Parameters
ptr_jobjob to complete
b_abortif true then the job has been aborted

References udd_ep_job_t::buf_size, udd_ep_job_t::busy, udd_ep_job_t::call_trans, dbg_print, Is_udd_endpoint_in, UDD_EP_TRANSFER_ABORT, UDD_EP_TRANSFER_OK, and USB_EP_DIR_IN.

Referenced by udd_ep_abort_job(), udd_ep_interrupt(), udd_ep_job_table_kill(), and udd_ep_trans_done().

void udd_ep_free ( udd_ep_id_t  ep)

Disables an endpoint.

Parameters
epEndpoint number including direction (USB_EP_DIR_IN/USB_EP_DIR_OUT).

References udd_ep_job_t::stall_requested, udd_disable_endpoint, udd_ep_abort_job(), udd_unallocate_memory, USB_DEVICE_MAX_EP, and USB_EP_ADDR_MASK.

Referenced by udc_iface_disable().

bool udd_ep_is_halted ( udd_ep_id_t  ep)

Check if the endpoint ep is halted.

Parameters
epThe ID of the endpoint to check.
Returns
1 if ep is halted, otherwise 0.

References Is_udd_endpoint_stall_requested, and USB_EP_ADDR_MASK.

Referenced by udc_req_std_ep_get_status().

static void udd_ep_job_table_kill ( void  )
static

Abort all endpoint jobs on going.

References udd_ep_finish_job(), and USB_DEVICE_MAX_EP.

Referenced by if().

static void udd_ep_job_table_reset ( void  )
static

Reset all job table.

References udd_ep_job_t::busy, udd_ep_job_t::stall_requested, and USB_DEVICE_MAX_EP.

Referenced by udd_enable().

bool udd_ep_run ( udd_ep_id_t  ep,
bool  b_shortpacket,
uint8_t *  buf,
iram_size_t  buf_size,
udd_callback_trans_t  callback 
)

Allows to receive or send data on an endpoint.

The driver uses a specific DMA USB to transfer data from internal RAM to endpoint, if this one is available. When the transfer is finished or aborted (stall, reset, ...), the callback is called. The callback returns the transfer status and eventually the number of byte transfered. Note: The control endpoint is not authorized.

Parameters
epThe ID of the endpoint to use
b_shortpacketEnabled automatic short packet
bufBuffer on Internal RAM to send or fill. It must be align, then use COMPILER_WORD_ALIGNED.
buf_sizeBuffer size to send or fill
callbackNULL or function to call at the end of transfer
Warning
About b_shortpacket, for IN endpoint it means that a short packet (or a Zero Length Packet) will be sent to the USB line to properly close the usb transfer at the end of the data transfer. For Bulk and Interrupt OUT endpoint, it will automatically stop the transfer at the end of the data transfer (received short packet).
Returns
1 if function was successfully done, otherwise 0.

References _dcache_flush(), _dcache_invalidate_prepare(), udd_ep_job_t::b_shortpacket, udd_ep_job_t::buf, udd_ep_job_t::buf_cnt, udd_ep_job_t::buf_load, udd_ep_job_t::buf_size, udd_ep_job_t::busy, udd_ep_job_t::call_trans, cpu_irq_restore(), cpu_irq_save(), dbg_print, Is_udd_endpoint_dma_supported, Is_udd_endpoint_enabled, Is_udd_endpoint_in, Is_udd_endpoint_stall_requested, udd_ep_job_t::stall_requested, udd_disable_endpoint_bank_autoswitch, udd_enable_endpoint_interrupt, udd_enable_in_send_interrupt, udd_enable_out_received_interrupt, udd_ep_trans_done(), USB_DEVICE_MAX_EP, and USB_EP_ADDR_MASK.

Referenced by udd_ep_alloc(), and udi_hid_mouse_send_report().

bool udd_ep_set_halt ( udd_ep_id_t  ep)

Set the halted state of the endpoint ep.

After calling this function, any transaction on ep will result in a STALL handshake being sent. Any pending transactions will be performed first, however.

Parameters
epThe ID of the endpoint to be halted
Returns
1 if ep is halted, otherwise 0.

References udd_ep_job_t::busy, cpu_irq_restore(), cpu_irq_save(), Is_udd_endpoint_stall_requested, udd_ep_job_t::stall_requested, udd_ack_stall, udd_disable_endpoint_bank_autoswitch, udd_disable_in_send_interrupt, udd_enable_bank_interrupt, udd_enable_endpoint_bank_autoswitch, udd_enable_endpoint_interrupt, udd_enable_stall_handshake, udd_nb_busy_bank, USB_DEVICE_MAX_EP, USB_EP_ADDR_MASK, and USB_EP_DIR_IN.

Referenced by udc_req_std_ep_set_feature().

bool udd_ep_wait_stall_clear ( udd_ep_id_t  ep,
udd_callback_halt_cleared_t  callback 
)

Registers a callback to call when endpoint halt is cleared.

Parameters
epThe ID of the endpoint to use
callbackNULL or function to call when endpoint halt is cleared
Warning
if the endpoint is not halted then the callback is called immediately.
Returns
1 if the register is accepted, otherwise 0.

References udd_ep_job_t::busy, udd_ep_job_t::call_nohalt, Is_udd_endpoint_enabled, Is_udd_endpoint_stall_requested, udd_ep_job_t::stall_requested, USB_DEVICE_MAX_EP, and USB_EP_ADDR_MASK.

uint16_t udd_get_frame_number ( void  )

Returns the current start of frame number.

Returns
current start of frame number.

References udd_frame_number.

uint16_t udd_get_micro_frame_number ( void  )

Returns the current micro start of frame number.

Returns
current micro start of frame number required in high speed mode.

References udd_micro_frame_number.

uint8_t udd_getaddress ( void  )

Returns the USB address of device.

Returns
USB address

References udd_get_configured_address.

Referenced by udc_req_std_dev_set_configuration().

bool udd_include_vbus_monitoring ( void  )

Authorizes the VBUS event.

Returns
true, if the VBUS monitoring is possible.

Referenced by udc_include_vbus_monitoring().

bool udd_is_high_speed ( void  )

Test whether the USB Device Controller is running at high speed or not.

Returns
true if the Device is running at high speed mode, otherwise false.

References Is_udd_full_speed_mode.

Referenced by udc_req_std_dev_get_descriptor(), udc_req_std_dev_set_configuration(), and udc_req_std_dev_set_feature().

void udd_send_remotewakeup ( void  )

The USB driver sends a resume signal called Upstream Resume.

References otg_unfreeze_clock, udd_b_idle, udd_initiate_remote_wake_up, and udd_sleep_mode().

Referenced by udc_remotewakeup().

void udd_set_address ( uint8_t  address)

Changes the USB address of device.

Parameters
addressNew USB address

References udd_configure_address, udd_disable_address, and udd_enable_address.

Referenced by udc_valid_address().

void udd_set_setup_payload ( uint8_t *  payload,
uint16_t  payload_size 
)
static void udd_sleep_mode ( bool  b_idle)
static

Authorize or not the CPU powerdown mode.

Parameters
b_idletrue to authorize idle mode

References dbg_print, sleepmgr_lock_mode(), sleepmgr_unlock_mode(), udd_b_idle, and USBHS_SLEEP_MODE_USB_IDLE.

Referenced by if(), udd_attach(), udd_detach(), udd_enable(), and udd_send_remotewakeup().

static void udd_vbus_handler ( uint32_t  id,
uint32_t  mask 
)
static

USB VBus pin change handler.

References Is_otg_vbus_high, UDC_VBUS_EVENT, udd_attach(), udd_detach(), and udd_vbus_monitor_sleep_mode.

Referenced by udd_enable().

udd_interrupt_end __pad0__
udd_interrupt_sof_end __pad1__
bool udd_b_idle
static

State of USB line.

Referenced by udd_enable(), udd_send_remotewakeup(), and udd_sleep_mode().

bool udd_b_sleep_initialized = false
static

State of sleep manager.

Referenced by udd_disable(), and udd_enable().

uint16_t udd_ctrl_payload_buf_cnt
static

Number of data received/sent to/from udd_g_ctrlreq.payload buffer.

Referenced by udd_ctrl_in_sent(), and udd_ctrl_out_received().

uint16_t udd_ctrl_prev_payload_buf_cnt
static

Total number of data received/sent during data packet phase with previous payload buffers.

udd_ctrl_ep_state_t udd_ep_control_state
static

State of the endpoint control management.

udd_ep_job_t udd_ep_job[USB_DEVICE_MAX_EP]
static

Array to register a job on bulk/interrupt/isochronous endpoint.