|author||Julius Werner <email@example.com>||Wed Jul 10 15:53:59 2019 -0700|
|committer||Patrick Georgi <firstname.lastname@example.org>||Thu Aug 22 10:37:26 2019 +0000|
libpayload: usbmsc: Factor out usb_msc_force_init() function We're planning to have a use case with a custom USB device that implements the USB mass storage protocol on its bulk endpoints, but does not have the normal MSC class/protocol interface descriptors and does not support class-specific control requests (Get Max LUN and Bulk-Only Reset). We'd like to identify/enumerate the device via usb_generic_create() in our payload but then reuse all the normal MSC driver code. In order to make that possible, this patch factors a new usb_msc_force_init() function out of usb_msc_init() which will initialize an MSC device without checking its descriptors. It also adds some "quirks" flags that allow devices registered this way to customize behavior of the MSC stack. Change-Id: I50392128409cb2a879954f234149a5e3b060a229 Signed-off-by: Julius Werner <email@example.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/34227 Tested-by: build bot (Jenkins) <firstname.lastname@example.org> Reviewed-by: Patrick Georgi <email@example.com>
coreboot is a Free Software project aimed at replacing the proprietary BIOS (firmware) found in most computers. coreboot performs a little bit of hardware initialization and then executes additional boot logic, called a payload.
With the separation of hardware initialization and later boot logic, coreboot can scale from specialized applications that run directly firmware, run operating systems in flash, load custom bootloaders, or implement firmware standards, like PC BIOS services or UEFI. This allows for systems to only include the features necessary in the target application, reducing the amount of code and flash space required.
coreboot was formerly known as LinuxBIOS.
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See https://www.coreboot.org/Payloads for a list of supported payloads.
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