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

Bases: Component

Setup component of our eptri-equivalent interface.

Implements the USB Setup FIFO, which handles SETUP packets on any endpoint.

This interface is similar to an OutFIFOInterface, but always ACKs packets, and does not allow for any flow control; as a USB device must always be ready to accept control packets. [USB2.0: 8.6.1]

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 0x7f6320b0e900>

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 0x7f6320b0ecf0>

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 0x7f6320b0ebd0>

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.

address: <amaranth_soc.csr.reg.Field object at 0x7f6320b0e990>

epno: <amaranth_soc.csr.reg.Field object at 0x7f6320b0ea50>

have: <amaranth_soc.csr.reg.Field object at 0x7f6320b0eab0>

elaborate(platform)[source]