luna_soc.gateware.core.usb2.ep_out module

Implementation of a Triple-FIFO endpoint manager.

Equivalent (but not binary-compatbile) implementation of ValentyUSB’s eptri.

For an example, see examples/usb/eptri or TinyUSB’s luna/dcd_eptri.c.

class luna_soc.gateware.core.usb2.ep_out.Peripheral(*args, src_loc_at=0, **kwargs)[source]

Bases: Component

OUT component of our eptri

Implements the OUT FIFO, which handles receiving packets from our host.

Attributes

interface: EndpointInterface: Our primary interface to the core USB device hardware.

class Control(*args, src_loc_at=0, **kwargs)[source]

Bases: Register

A CSR register.

Parameters

fieldsdict or list or Field: Collection of register fields. If None (default), a dict is populated from Python variable annotations. fields is used to create a FieldActionMap, FieldActionArray, or FieldAction, depending on its type (dict, list, or Field).

Interface attributes

elementElement: Interface between this register and a CSR bus primitive.

Attributes

fieldFieldActionMap or FieldActionArray or FieldAction: Collection of field instances.
fFieldActionMap or FieldActionArray or FieldAction: Shorthand for Register.field.

Raises

TypeError: If fields is neither None, a dict, a list, or a Field.
ValueError: If fields is not None and at least one variable annotation is a Field.
ValueError: If element.access is not readable and at least one field is readable.
ValueError: If element.access is not writable and at least one field is writable.

address: <amaranth_soc.csr.reg.Field object at 0x751452cdd2b0>

class Data(*args, src_loc_at=0, **kwargs)[source]

Bases: Register

A CSR register.

Parameters

fieldsdict or list or Field: Collection of register fields. If None (default), a dict is populated from Python variable annotations. fields is used to create a FieldActionMap, FieldActionArray, or FieldAction, depending on its type (dict, list, or Field).

Interface attributes

elementElement: Interface between this register and a CSR bus primitive.

Attributes

fieldFieldActionMap or FieldActionArray or FieldAction: Collection of field instances.
fFieldActionMap or FieldActionArray or FieldAction: Shorthand for Register.field.

Raises

TypeError: If fields is neither None, a dict, a list, or a Field.
ValueError: If fields is not None and at least one variable annotation is a Field.
ValueError: If element.access is not readable and at least one field is readable.
ValueError: If element.access is not writable and at least one field is writable.

byte: <amaranth_soc.csr.reg.Field object at 0x751452cdde80>

class Enable(*args, src_loc_at=0, **kwargs)[source]

Bases: Register

A CSR register.

Parameters

fieldsdict or list or Field: Collection of register fields. If None (default), a dict is populated from Python variable annotations. fields is used to create a FieldActionMap, FieldActionArray, or FieldAction, depending on its type (dict, list, or Field).

Interface attributes

elementElement: Interface between this register and a CSR bus primitive.

Attributes

fieldFieldActionMap or FieldActionArray or FieldAction: Collection of field instances.
fFieldActionMap or FieldActionArray or FieldAction: Shorthand for Register.field.

Raises

TypeError: If fields is neither None, a dict, a list, or a Field.
ValueError: If fields is not None and at least one variable annotation is a Field.
ValueError: If element.access is not readable and at least one field is readable.
ValueError: If element.access is not writable and at least one field is writable.

enabled: <amaranth_soc.csr.reg.Field object at 0x751452cdd430>

class Endpoint(*args, src_loc_at=0, **kwargs)[source]

Bases: Register

A CSR register.

Parameters

fieldsdict or list or Field: Collection of register fields. If None (default), a dict is populated from Python variable annotations. fields is used to create a FieldActionMap, FieldActionArray, or FieldAction, depending on its type (dict, list, or Field).

Interface attributes

elementElement: Interface between this register and a CSR bus primitive.

Attributes

fieldFieldActionMap or FieldActionArray or FieldAction: Collection of field instances.
fFieldActionMap or FieldActionArray or FieldAction: Shorthand for Register.field.

Raises

TypeError: If fields is neither None, a dict, a list, or a Field.
ValueError: If fields is not None and at least one variable annotation is a Field.
ValueError: If element.access is not readable and at least one field is readable.
ValueError: If element.access is not writable and at least one field is writable.

number: <amaranth_soc.csr.reg.Field object at 0x751452cdd310>

class Pid(*args, src_loc_at=0, **kwargs)[source]

Bases: Register

A CSR register.

Parameters

fieldsdict or list or Field: Collection of register fields. If None (default), a dict is populated from Python variable annotations. fields is used to create a FieldActionMap, FieldActionArray, or FieldAction, depending on its type (dict, list, or Field).

Interface attributes

elementElement: Interface between this register and a CSR bus primitive.

Attributes

fieldFieldActionMap or FieldActionArray or FieldAction: Collection of field instances.
fFieldActionMap or FieldActionArray or FieldAction: Shorthand for Register.field.

Raises

TypeError: If fields is neither None, a dict, a list, or a Field.
ValueError: If fields is not None and at least one variable annotation is a Field.
ValueError: If element.access is not readable and at least one field is readable.
ValueError: If element.access is not writable and at least one field is writable.

toggle: <amaranth_soc.csr.reg.Field object at 0x751452cdd7f0>

class Prime(*args, src_loc_at=0, **kwargs)[source]

Bases: Register

A CSR register.

Parameters

fieldsdict or list or Field: Collection of register fields. If None (default), a dict is populated from Python variable annotations. fields is used to create a FieldActionMap, FieldActionArray, or FieldAction, depending on its type (dict, list, or Field).

Interface attributes

elementElement: Interface between this register and a CSR bus primitive.

Attributes

fieldFieldActionMap or FieldActionArray or FieldAction: Collection of field instances.
fFieldActionMap or FieldActionArray or FieldAction: Shorthand for Register.field.

Raises

TypeError: If fields is neither None, a dict, a list, or a Field.
ValueError: If fields is not None and at least one variable annotation is a Field.
ValueError: If element.access is not readable and at least one field is readable.
ValueError: If element.access is not writable and at least one field is writable.

primed: <amaranth_soc.csr.reg.Field object at 0x751452cdd5b0>

class Reset(*args, src_loc_at=0, **kwargs)[source]

Bases: Register

A CSR register.

Parameters

fieldsdict or list or Field: Collection of register fields. If None (default), a dict is populated from Python variable annotations. fields is used to create a FieldActionMap, FieldActionArray, or FieldAction, depending on its type (dict, list, or Field).

Interface attributes

elementElement: Interface between this register and a CSR bus primitive.

Attributes

fieldFieldActionMap or FieldActionArray or FieldAction: Collection of field instances.
fFieldActionMap or FieldActionArray or FieldAction: Shorthand for Register.field.

Raises

TypeError: If fields is neither None, a dict, a list, or a Field.
ValueError: If fields is not None and at least one variable annotation is a Field.
ValueError: If element.access is not readable and at least one field is readable.
ValueError: If element.access is not writable and at least one field is writable.

fifo: <amaranth_soc.csr.reg.Field object at 0x751452cddcd0>

class Stall(*args, src_loc_at=0, **kwargs)[source]

Bases: Register

A CSR register.

Parameters

fieldsdict or list or Field: Collection of register fields. If None (default), a dict is populated from Python variable annotations. fields is used to create a FieldActionMap, FieldActionArray, or FieldAction, depending on its type (dict, list, or Field).

Interface attributes

elementElement: Interface between this register and a CSR bus primitive.

Attributes

fieldFieldActionMap or FieldActionArray or FieldAction: Collection of field instances.
fFieldActionMap or FieldActionArray or FieldAction: Shorthand for Register.field.

Raises

TypeError: If fields is neither None, a dict, a list, or a Field.
ValueError: If fields is not None and at least one variable annotation is a Field.
ValueError: If element.access is not readable and at least one field is readable.
ValueError: If element.access is not writable and at least one field is writable.

stalled: <amaranth_soc.csr.reg.Field object at 0x751452cdd6d0>

class Status(*args, src_loc_at=0, **kwargs)[source]

Bases: Register

A CSR register.

Parameters

fieldsdict or list or Field: Collection of register fields. If None (default), a dict is populated from Python variable annotations. fields is used to create a FieldActionMap, FieldActionArray, or FieldAction, depending on its type (dict, list, or Field).

Interface attributes

elementElement: Interface between this register and a CSR bus primitive.

Attributes

fieldFieldActionMap or FieldActionArray or FieldAction: Collection of field instances.
fFieldActionMap or FieldActionArray or FieldAction: Shorthand for Register.field.

Raises

TypeError: If fields is neither None, a dict, a list, or a Field.
ValueError: If fields is not None and at least one variable annotation is a Field.
ValueError: If element.access is not readable and at least one field is readable.
ValueError: If element.access is not writable and at least one field is writable.

epno: <amaranth_soc.csr.reg.Field object at 0x751452cdd910>

have: <amaranth_soc.csr.reg.Field object at 0x751452cdda60>

pid: <amaranth_soc.csr.reg.Field object at 0x751452cddb20>

__init__(max_packet_size=512)[source]

Parameters

max_packet_size: int, optional
Sets the maximum packet size that can be transmitted on this endpoint. This should match the value provided in the relevant endpoint descriptor.

elaborate(platform)[source]