USBC Host Driver

USBC low-level driver for USB host mode.

Warning

Bit-masks are used instead of bit-fields because PB registers require 32-bit write accesses while AVR32-GCC 4.0.2 builds 8-bit accesses even when volatile unsigned int bit-fields are specified.

USBC Host IP properties
These macros give access to IP properties Get maximal number of endpoints
#define	uhd_get_pipe_max_nbr()

Host Vbus line control
VBOF is an optional output pin which allows to enable or disable the external VBus generator. Enables hardware control of USB_VBOF output pin when a Vbus error occur
#define	uhd_enable_vbus_error_hw_control()   USBC_CLR_BITS(USBCON,VBUSHWC)
#define	uhd_disable_vbus_error_hw_control()   USBC_SET_BITS(USBCON,VBUSHWC)
	Disables hardware control of USB_VBOF output pin when a Vbus error occur. More...
#define	USB_VBOF_PIN   ATPASTE2(USB_VBOF, _PIN)
	Pin and function for USB_VBOF according to configuration from USB_VBOF. More...
#define	USB_VBOF_FUNCTION   ATPASTE2(USB_VBOF, _FUNCTION)
#define	uhd_output_vbof_pin()
	Output USB_VBOF onto its pin. More...
#define	uhd_set_vbof_active_high()   USBC_CLR_BITS(USBCON,VBUSPO)
	Set USB_VBOF output pin polarity. More...
#define	uhd_set_vbof_active_low()   USBC_SET_BITS(USBCON,VBUSPO)
#define	uhd_enable_vbus()   USBC_REG_SET(USBSTA,VBUSRQ)
	Requests VBus activation. More...
#define	uhd_disable_vbus()   USBC_REG_CLR(USBSTA,VBUSRQ)
	Requests VBus deactivation. More...
#define	Is_uhd_vbus_enabled()   USBC_TST_BITS(USBSTA,VBUSRQ)
	Tests if VBus activation has been requested. More...

Host Vbus line monitoring
The VBus level is always checked by USBC hardware.
#define	uhd_enable_vbus_error_interrupt()   USBC_SET_BITS(USBCON,VBERRE)
#define	uhd_disable_vbus_error_interrupt()   USBC_CLR_BITS(USBCON,VBERRE)
#define	Is_uhd_vbus_error_interrupt_enabled()   USBC_TST_BITS(USBCON,VBERRE)
#define	uhd_ack_vbus_error_interrupt()   USBC_REG_CLR(USBSTA,VBERRI)
#define	Is_uhd_vbus_error_interrupt()   USBC_TST_BITS(USBSTA,VBERRI)

USB device connection/disconnection monitoring
#define	uhd_enable_connection_int()   USBC_REG_SET(UHINTE,DCONNIE)
#define	uhd_disable_connection_int()   USBC_REG_CLR(UHINTE,DCONNIE)
#define	Is_uhd_connection_int_enabled()   USBC_TST_BITS(UHINTE,DCONNIE)
#define	uhd_ack_connection()   USBC_REG_CLR(UHINT,DCONNI)
#define	Is_uhd_connection()   USBC_TST_BITS(UHINT,DCONNI)
#define	uhd_enable_disconnection_int()   USBC_REG_SET(UHINTE,DDISCIE)
#define	uhd_disable_disconnection_int()   USBC_REG_CLR(UHINTE,DDISCIE)
#define	Is_uhd_disconnection_int_enabled()   USBC_TST_BITS(UHINTE,DDISCIE)
#define	uhd_ack_disconnection()   USBC_REG_CLR(UHINT,DDISCI)
#define	Is_uhd_disconnection()   USBC_TST_BITS(UHINT,DDISCI)

USB device speed control
#define	uhd_get_speed_mode()   USBC_RD_BITFIELD(USBSTA,SPEED)
#define	Is_uhd_low_speed_mode()   (USBC_RD_BITFIELD(USBSTA,SPEED) == AVR32_USBC_USBSTA_SPEED_LOW)
#define	Is_uhd_full_speed_mode()   (USBC_RD_BITFIELD(USBSTA,SPEED) == AVR32_USBC_USBSTA_SPEED_FULL)
#define	Is_uhd_high_speed_mode()   false

Bus events control
These macros manage the bus events: reset, SOF, resume, wakeup.
#define	uhd_start_reset()   USBC_SET_BITS(UHCON,RESET)
	Initiates a reset event. More...
#define	Is_uhd_starting_reset()   USBC_TST_BITS(UHCON,RESET)
#define	uhd_stop_reset()   USBC_CLR_BITS(UHCON,RESET)
#define	uhd_enable_reset_sent_interrupt()   USBC_REG_SET(UHINTE,RSTIE)
#define	uhd_disable_reset_sent_interrupt()   USBC_REG_CLR(UHINTE,RSTIE)
#define	Is_uhd_reset_sent_interrupt_enabled()   USBC_TST_BITS(UHINTE,RSTIE)
#define	uhd_ack_reset_sent()   USBC_REG_CLR(UHINT,RSTI)
#define	Is_uhd_reset_sent()   USBC_TST_BITS(UHINT,RSTI)
#define	uhd_enable_sof()   USBC_SET_BITS(UHCON,SOFE)
	Initiates a SOF events. More...
#define	uhd_disable_sof()   USBC_CLR_BITS(UHCON,SOFE)
#define	Is_uhd_sof_enabled()   USBC_TST_BITS(UHCON,SOFE)
#define	uhd_get_sof_number()   USBC_RD_BITFIELD(UHFNUM,FNUM)
#define	uhd_get_microsof_number()
#define	uhd_get_frame_position()   USBC_RD_BITFIELD(UHFNUM,FLENHIGH)
#define	uhd_enable_sof_interrupt()   USBC_REG_SET(UHINTE,HSOFIE)
#define	uhd_disable_sof_interrupt()   USBC_REG_CLR(UHINTE,HSOFIE)
#define	Is_uhd_sof_interrupt_enabled()   USBC_TST_BITS(UHINTE,HSOFIE)
#define	uhd_ack_sof()   USBC_REG_CLR(UHINT,HSOFI)
#define	Is_uhd_sof()   USBC_TST_BITS(UHINT,HSOFI)
#define	uhd_send_resume()   USBC_SET_BITS(UHCON,RESUME)
	Initiates a resume event It is called downstream resume event. More...
#define	Is_uhd_sending_resume()   USBC_TST_BITS(UHCON,RESUME)
#define	uhd_enable_downstream_resume_interrupt()   USBC_REG_SET(UHINTE,RSMEDIE)
#define	uhd_disable_downstream_resume_interrupt()   USBC_REG_CLR(UHINTE,RSMEDIE)
#define	Is_uhd_downstream_resume_interrupt_enabled()   USBC_TST_BITS(UHINTE,RSMEDIE)
#define	uhd_ack_downstream_resume()   USBC_REG_CLR(UHINT,RSMEDI)
#define	Is_uhd_downstream_resume()   USBC_TST_BITS(UHINT,RSMEDI)
#define	uhd_enable_wakeup_interrupt()   USBC_REG_SET(UHINTE,HWUPIE)
	Detection of a wake-up event A wake-up event is received when the host controller is in the suspend mode: More...
#define	uhd_disable_wakeup_interrupt()   USBC_REG_CLR(UHINTE,HWUPIE)
#define	Is_uhd_wakeup_interrupt_enabled()   USBC_TST_BITS(UHINTE,HWUPIE)
#define	uhd_ack_wakeup()   USBC_REG_CLR(UHINT,HWUPI)
#define	Is_uhd_wakeup()   USBC_TST_BITS(UHINT,HWUPI)
#define	uhd_enable_upstream_resume_interrupt()   USBC_REG_SET(UHINTE,RXRSMIE)
#define	uhd_disable_upstream_resume_interrupt()   USBC_REG_CLR(UHINTE,RXRSMIE)
#define	Is_uhd_upstream_resume_interrupt_enabled()   USBC_TST_BITS(UHINTE,RXRSMIE)
#define	uhd_ack_upstream_resume()   USBC_REG_CLR(UHINT,RXRSMI)
#define	Is_uhd_upstream_resume()   USBC_TST_BITS(UHINT,RXRSMI)

#define Is_uhd_connection

(

)

USBC_TST_BITS(UHINT,DCONNI)

Referenced by uhd_interrupt().

#define Is_uhd_connection_int_enabled

(

)

USBC_TST_BITS(UHINTE,DCONNIE)

Referenced by uhd_interrupt().

#define Is_uhd_disconnection

(

)

USBC_TST_BITS(UHINT,DDISCI)

Referenced by uhd_interrupt(), and uhd_sof_interrupt().

#define Is_uhd_disconnection_int_enabled

(

)

USBC_TST_BITS(UHINTE,DDISCIE)

Referenced by uhd_interrupt().

#define Is_uhd_downstream_resume

(

)

USBC_TST_BITS(UHINT,RSMEDI)

Referenced by uhd_interrupt().

#define Is_uhd_downstream_resume_interrupt_enabled

(

)

USBC_TST_BITS(UHINTE,RSMEDIE)

#define Is_uhd_full_speed_mode

(

)

(USBC_RD_BITFIELD(USBSTA,SPEED) == AVR32_USBC_USBSTA_SPEED_FULL)

#define Is_uhd_high_speed_mode

(

)

false

Referenced by uhd_interrupt().

#define Is_uhd_low_speed_mode

(

)

(USBC_RD_BITFIELD(USBSTA,SPEED) == AVR32_USBC_USBSTA_SPEED_LOW)

Referenced by uhd_sof_interrupt().

#define Is_uhd_reset_sent

(

)

USBC_TST_BITS(UHINT,RSTI)

Referenced by uhd_interrupt().

#define Is_uhd_reset_sent_interrupt_enabled

(

)

USBC_TST_BITS(UHINTE,RSTIE)

#define Is_uhd_sending_resume

(

)

USBC_TST_BITS(UHCON,RESUME)

#define Is_uhd_sof

(

)

USBC_TST_BITS(UHINT,HSOFI)

Referenced by uhd_interrupt().

#define Is_uhd_sof_enabled

(

)

USBC_TST_BITS(UHCON,SOFE)

Referenced by uhd_is_suspend(), and uhd_resume().

#define Is_uhd_sof_interrupt_enabled

(

)

USBC_TST_BITS(UHINTE,HSOFIE)

#define Is_uhd_starting_reset

(

)

USBC_TST_BITS(UHCON,RESET)

#define Is_uhd_upstream_resume

(

)

USBC_TST_BITS(UHINT,RXRSMI)

Referenced by uhd_interrupt().

#define Is_uhd_upstream_resume_interrupt_enabled

(

)

USBC_TST_BITS(UHINTE,RXRSMIE)

#define Is_uhd_vbus_enabled

(

)

USBC_TST_BITS(USBSTA,VBUSRQ)

Tests if VBus activation has been requested.

#define Is_uhd_vbus_error_interrupt

(

)

USBC_TST_BITS(USBSTA,VBERRI)

Referenced by uhd_interrupt().

#define Is_uhd_vbus_error_interrupt_enabled

(

)

USBC_TST_BITS(USBCON,VBERRE)

#define Is_uhd_wakeup

(

)

USBC_TST_BITS(UHINT,HWUPI)

Referenced by uhd_interrupt().

#define Is_uhd_wakeup_interrupt_enabled

(

)

USBC_TST_BITS(UHINTE,HWUPIE)

Referenced by uhd_interrupt().

#define uhd_ack_connection

(

)

USBC_REG_CLR(UHINT,DCONNI)

Referenced by uhd_interrupt().

#define uhd_ack_disconnection

(

)

USBC_REG_CLR(UHINT,DDISCI)

Referenced by uhd_interrupt().

#define uhd_ack_downstream_resume

(

)

USBC_REG_CLR(UHINT,RSMEDI)

#define uhd_ack_reset_sent

(

)

USBC_REG_CLR(UHINT,RSTI)

Referenced by uhd_interrupt().

#define uhd_ack_sof

(

)

USBC_REG_CLR(UHINT,HSOFI)

Referenced by uhd_interrupt().

#define uhd_ack_upstream_resume

(

)

USBC_REG_CLR(UHINT,RXRSMI)

#define uhd_ack_vbus_error_interrupt

(

)

USBC_REG_CLR(USBSTA,VBERRI)

Referenced by uhd_interrupt().

#define uhd_ack_wakeup

(

)

USBC_REG_CLR(UHINT,HWUPI)

#define uhd_disable_connection_int

(

)

USBC_REG_CLR(UHINTE,DCONNIE)

Referenced by uhd_interrupt().

#define uhd_disable_disconnection_int

(

)

USBC_REG_CLR(UHINTE,DDISCIE)

Referenced by uhd_interrupt().

#define uhd_disable_downstream_resume_interrupt

(

)

USBC_REG_CLR(UHINTE,RSMEDIE)

#define uhd_disable_reset_sent_interrupt

(

)

USBC_REG_CLR(UHINTE,RSTIE)

#define uhd_disable_sof

(

)

USBC_CLR_BITS(UHCON,SOFE)

Referenced by uhd_disable(), and uhd_sof_interrupt().

#define uhd_disable_sof_interrupt

(

)

USBC_REG_CLR(UHINTE,HSOFIE)

#define uhd_disable_upstream_resume_interrupt

(

)

USBC_REG_CLR(UHINTE,RXRSMIE)

#define uhd_disable_vbus

(

)

USBC_REG_CLR(USBSTA,VBUSRQ)

Requests VBus deactivation.

Referenced by uhd_disable().

#define uhd_disable_vbus_error_hw_control

(

)

USBC_SET_BITS(USBCON,VBUSHWC)

Disables hardware control of USB_VBOF output pin when a Vbus error occur.

#define uhd_disable_vbus_error_interrupt

(

)

USBC_CLR_BITS(USBCON,VBERRE)

#define uhd_disable_wakeup_interrupt

(

)

USBC_REG_CLR(UHINTE,HWUPIE)

#define uhd_enable_connection_int

(

)

USBC_REG_SET(UHINTE,DCONNIE)

Referenced by uhd_interrupt().

#define uhd_enable_disconnection_int

(

)

USBC_REG_SET(UHINTE,DDISCIE)

Referenced by uhd_interrupt().

#define uhd_enable_downstream_resume_interrupt

(

)

USBC_REG_SET(UHINTE,RSMEDIE)

#define uhd_enable_reset_sent_interrupt

(

)

USBC_REG_SET(UHINTE,RSTIE)

#define uhd_enable_sof

(

)

USBC_SET_BITS(UHCON,SOFE)

Initiates a SOF events.

Referenced by uhd_interrupt(), and uhd_resume().

#define uhd_enable_sof_interrupt

(

)

USBC_REG_SET(UHINTE,HSOFIE)

#define uhd_enable_upstream_resume_interrupt

(

)

USBC_REG_SET(UHINTE,RXRSMIE)

#define uhd_enable_vbus

(

)

USBC_REG_SET(USBSTA,VBUSRQ)

Requests VBus activation.

Referenced by uhd_enable(), and uhd_interrupt().

#define uhd_enable_vbus_error_hw_control

(

)

USBC_CLR_BITS(USBCON,VBUSHWC)

#define uhd_enable_vbus_error_interrupt

(

)

USBC_SET_BITS(USBCON,VBERRE)

#define uhd_enable_wakeup_interrupt

(

)

USBC_REG_SET(UHINTE,HWUPIE)

Detection of a wake-up event A wake-up event is received when the host controller is in the suspend mode:

• and an upstream resume from the peripheral is detected.
• and a peripheral disconnection is detected.

#define uhd_get_frame_position

(

)

USBC_RD_BITFIELD(UHFNUM,FLENHIGH)

Referenced by uhd_sof_interrupt().

#define uhd_get_microsof_number

(

)

Value:

(Rd_bitfield(AVR32_USBC.uhfnum, \
        AVR32_USBC_UHFNUM_FNUM_MASK|AVR32_USBC_UHFNUM_MFNUM_MASK))

Referenced by uhd_get_microframe_number().

#define uhd_get_pipe_max_nbr

(

)

Value:

(((USBC_RD_BITFIELD(UFEATURES_EPT_NBR,MAX) - 1) \
    & ((1 << AVR32_USBC_UFEATURES_EPT_NBR_MAX_SIZE) - 1)) + 1)

#define uhd_get_sof_number

(

)

USBC_RD_BITFIELD(UHFNUM,FNUM)

Referenced by uhd_get_frame_number().

#define uhd_get_speed_mode

(

)

USBC_RD_BITFIELD(USBSTA,SPEED)

Referenced by uhd_get_speed().

#define uhd_output_vbof_pin

(

)

Value:

{\
    (Tst_bits(USB_VBOF_FUNCTION, 0x01)) ?\
    (AVR32_GPIO.port[USB_VBOF_PIN >> 5].pmr0s = 1 << (USB_VBOF_PIN & 0x1F)) :\
    (AVR32_GPIO.port[USB_VBOF_PIN >> 5].pmr0c = 1 << (USB_VBOF_PIN & 0x1F)); \
    (Tst_bits(USB_VBOF_FUNCTION, 0x02)) ?\
    (AVR32_GPIO.port[USB_VBOF_PIN >> 5].pmr1s = 1 << (USB_VBOF_PIN & 0x1F)) :\
    (AVR32_GPIO.port[USB_VBOF_PIN >> 5].pmr1c = 1 << (USB_VBOF_PIN & 0x1F)); \
    AVR32_GPIO.port[USB_VBOF_PIN >> 5].gperc  = 1 << (USB_VBOF_PIN & 0x1F);\
    AVR32_GPIO.port[USB_VBOF_PIN >> 5].odmerc = 1 << (USB_VBOF_PIN & 0x1F);\
    AVR32_GPIO.port[USB_VBOF_PIN >> 5].puerc  = 1 << (USB_VBOF_PIN & 0x1F); }

Output USB_VBOF onto its pin.

Referenced by uhd_enable().

#define uhd_send_resume

(

)

USBC_SET_BITS(UHCON,RESUME)

Initiates a resume event It is called downstream resume event.

Referenced by uhd_interrupt(), and uhd_resume().

#define uhd_set_vbof_active_high

(

)

USBC_CLR_BITS(USBCON,VBUSPO)

Set USB_VBOF output pin polarity.

Referenced by uhd_enable().

#define uhd_set_vbof_active_low

(

)

USBC_SET_BITS(USBCON,VBUSPO)

Referenced by uhd_enable().

#define uhd_start_reset

(

)

USBC_SET_BITS(UHCON,RESET)

Initiates a reset event.

Referenced by uhd_send_reset().

#define uhd_stop_reset

(

)

USBC_CLR_BITS(UHCON,RESET)

Referenced by uhd_interrupt().

#define USB_VBOF_FUNCTION   ATPASTE2(USB_VBOF, _FUNCTION)

#define USB_VBOF_PIN   ATPASTE2(USB_VBOF, _PIN)

Pin and function for USB_VBOF according to configuration from USB_VBOF.