Allow compiler optimizations to remove High-Speed handling code. Knowing
that maximum operating speed is Full-Speed allows to reduce bulk buffers
from 512 to 64 bytes. More RAM optimizations are possible but this
commit only gets the low hanging fruits.
Signed-off-by: Tomasz Moń <tomasz.mon@nordicsemi.no>
For many devices iSerialNumber is not required. The only device class
currently supported in Zephyr that requires iSerialNumber is MSC. If the
serial number is not available then iSerialNumber must be 0. Failure to
read the string descriptor for non-zero iSerialNumber fails USB Command
Verifier Chapter 9 tests.
When USBD_DESC_SERIAL_NUMBER_DEFINE() was used without CONFIG_HWINFO
then it did lead to runtime failure when requesting the string (thus
failing certification).
Fail USBD_DESC_SERIAL_NUMBER_DEFINE() at build-time if CONFIG_HWINFO is
not set to prevent the surprise at runtime. Only define serial number
descriptors if CONFIG_HWINFO is enabled.
Signed-off-by: Tomasz Moń <tomasz.mon@nordicsemi.no>
We need to track the self-powered status of the device independently of
the D6 bit in the bmAttributes value of the configuration descriptor
because the Get Status request about the self-powered status is valid in
address state and we support multiple configurations.
Signed-off-by: Johann Fischer <johann.fischer@nordicsemi.no>
The sample defines an image that uses RAMdisk and also provides an
option to enable USB DFU flash backend for the "slot-1" flash partition.
Assuming the user runs this sample from the slot-0 partition, uploading
to flash should work fine for evaluation purposes.
If the sample is built with CONFIG_BOOTLOADER_MCUBOOT=y, the sample will
mark the image in slot 1 as pending after an image download.
Signed-off-by: Johann Fischer <johann.fischer@nordicsemi.no>
In the usbd_register_all_classes(), we may need to skip some instances
as they may have very specific function like USB DFU "DFU mode" which
should not be available by default.
Signed-off-by: Johann Fischer <johann.fischer@nordicsemi.no>
Add a function similar to sample_usbd_init_device(), but one that does
not initialize the device. It allows the application to set additional
features, such as additional descriptors.
Signed-off-by: Johann Fischer <johann.fischer@nordicsemi.no>
Rename usbd_device_set_bcd() to usbd_device_set_bcd_usb() to make room for
other BCD encoded values being set.
Signed-off-by: Henrik Brix Andersen <henrik@brixandersen.dk>
Change USBD_CONFIGURATION_DEFINE macro to take the address of a string
descriptor node as an argument. This is a breaking change for macro
users, but quite convenient and easy to implement.
Signed-off-by: Johann Fischer <johann.fischer@nordicsemi.no>
Add documentation about USB message notifications. Use literalinclude to
pull code snippets from the samples.
Signed-off-by: Johann Fischer <johann.fischer@nordicsemi.no>
Add initial documentation how to configure and enable new USB device
support. Use literalinclude to pull code snippets from the samples.
Signed-off-by: Johann Fischer <johann.fischer@nordicsemi.no>
It simplifies the macros to create the string descriptors. We also no
longer need placeholders for the SerialNumber descriptor when it is
generated from hwid. In the future, we can store other descriptor types
in the same list.
Signed-off-by: Johann Fischer <johann.fischer@nordicsemi.no>
For the last dozen commits, the role of usbd_class_node has actually
been taken over by usbd_class_iter. After cleaning up and merging
usbd_class_node and usbd_class_data, we can rename usbd_class_iter to
usbd_class_node to better reflect its role.
Signed-off-by: Johann Fischer <johann.fischer@nordicsemi.no>
Since only usbd_class_node contains the class instance data, rename it
to usbd_class_data.
Signed-off-by: Johann Fischer <johann.fischer@nordicsemi.no>
USB High-Speed devices must be able to operate at both High-Speed and
Full-Speed. The USB specification allows the device to have different
configurations depending on connection speed. Modify the API to reflect
USB Specification requirements on what can (e.g. configurations) and
what cannot (e.g. VID, PID) be speed dependent.
While the class configurations for different speeds are completely
independent, the actual class instances are shared between operating
speeds (because only one speed can be active at a time). Classes are
free to provide different number of interfaces and/or endpoints for
different speeds. The endpoints are assigned for all operating speeds
during initialization.
Signed-off-by: Tomasz Moń <tomasz.mon@nordicsemi.no>
Introduce usbd_class_iter for keeping endpoint assignment variables
and the single-linked list node. No functional changes right now, but
this paves the way for independent speed specific configurations.
Signed-off-by: Tomasz Moń <tomasz.mon@nordicsemi.no>
Introduce new USB Audio 2 implementation written from scratch. Main goal
behind new implementation was to perform entity configuration with
devicetree bindings, hiding the descriptor complexity from application.
Initial implementation is working at Full-Speed only. High-Speed support
will come later, but even at Full-Speed only this is viable replacement
for old stack USB Audio 1 class (USB Audio 1 is limited to Full-Speed by
specification, i.e. it is explicitly forbidden for USB Audio 1 device to
work at High-Speed).
Implemented is only absolute minimum set of features required for basic
implicit and explicit feedback samples. Only one sample frequency is
currently supported. Optional interrupt notifications are not supported.
Signed-off-by: Tomasz Moń <tomasz.mon@nordicsemi.no>
There is common code for the new USB device support in the samples to
instantiate USB device, descriptors, configuration and initialize USB
device. Add common code that can be used for the simple usecase with a
single USB device and single configuration.
Signed-off-by: Johann Fischer <johann.fischer@nordicsemi.no>
