coreboot-kgpe-d16/payloads/libpayload/drivers/usb
Julius Werner e30e4e7efa libpayload: usbmsc: Implement limited LUN support
I always thought the support for multiple logical SCSI units in the USB
mass storage class was a dead feature. Turns out that it's actually used
by SD card readers that provide multiple slots (e.g. one regular sized
and one micro-SD). Implementing perfect support for that would require a
major redesign of the whole MSC stack, since the one device -> one disk
assumption is deeply embedded in our data structures.

Instead, this patch implements a poor man's LUN support that will just
cycle through all available LUNs (in multiple calls to usb_msc_poll())
until it finds a connected device. This should be reasonable enough to
allow these card readers to be usable while only requiring superficial
changes.

Also removes the unused 'protocol' attribute of usb_msc_inst_t.

BRANCH=rambi?,nyan
BUG=chrome-os-partner:28437
TEST=Alternatively plug an SD or micro-SD card (or both) into my card
reader, confirm that one of them is correctly detected at all times.

Original-Change-Id: I3df4ca88afe2dcf7928b823aa2a73c2b0f599cf2
Original-Signed-off-by: Julius Werner <jwerner@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/198101
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
(cherry picked from commit 960534a20e4334772c29355bb0d310b3f41b31ee)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>

Change-Id: I39909fc96e32c9a5d76651d91c2b5c16c89ace9e
Reviewed-on: http://review.coreboot.org/7904
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
2014-12-30 19:01:14 +01:00
..
ehci.c libpayload: usb: Fix up usb_shutdown() code paths 2014-11-13 06:22:45 +01:00
ehci.h libpayload: Use unsigned long for BARs in *hci_init() 2014-07-10 20:55:41 +02:00
ehci_private.h libpayload: Make EHCI driver cache-aware 2014-08-14 23:40:25 +02:00
ehci_rh.c libpayload: usb: Fix up usb_shutdown() code paths 2014-11-13 06:22:45 +01:00
generic_hub.c libpayload: usb: Remove generic roothub reset port function 2014-10-02 17:28:47 +02:00
generic_hub.h libpayload: usb: Remove generic roothub reset port function 2014-10-02 17:28:47 +02:00
ohci.c libpayload: usb: Remove automatic clear_stall() calls from transfers 2014-11-13 06:22:58 +01:00
ohci.h libpayload: Use unsigned long for BARs in *hci_init() 2014-07-10 20:55:41 +02:00
ohci_private.h libpayload: usb: Make OHCI work with ARM systems 2014-10-22 23:53:54 +02:00
ohci_rh.c libpayload: usb: Fix up usb_shutdown() code paths 2014-11-13 06:22:45 +01:00
quirks.c libpayload: usb: Refactor USB enumeration to fix SuperSpeed devices 2014-09-04 01:59:15 +02:00
TODO Since some people disapprove of white space cleanups mixed in regular commits 2010-04-27 06:56:47 +00:00
uhci.c libpayload: usb: Remove automatic clear_stall() calls from transfers 2014-11-13 06:22:58 +01:00
uhci.h libpayload: Add USB support for non-PCI controllers 2013-11-25 23:31:52 +01:00
uhci_private.h libpayload: Remove bitfield use from UHCI data structures 2012-01-10 00:02:54 +01:00
uhci_rh.c libpayload: usb: Fix up usb_shutdown() code paths 2014-11-13 06:22:45 +01:00
usb.c libpayload: usb: Try to avoid reusing device addresses 2014-12-22 21:44:43 +01:00
usb_dev.c Fix the USB code to find the headers after they were moved. 2008-09-11 17:29:00 +00:00
usbhid.c libpayload: usbhid: Fix typo on descriptor parsing 2014-09-10 19:36:50 +02:00
usbhub.c libpayload: usb: Refactor USB enumeration to fix SuperSpeed devices 2014-09-04 01:59:15 +02:00
usbinit.c libpayload: usb: Allow direct instantiation of MMIO host controllers 2014-08-28 00:09:32 +02:00
usbmsc.c libpayload: usbmsc: Implement limited LUN support 2014-12-30 19:01:14 +01:00
xhci.c libpayload: usb: Fix up usb_shutdown() code paths 2014-11-13 06:22:45 +01:00
xhci.h libpayload: Use unsigned long for BARs in *hci_init() 2014-07-10 20:55:41 +02:00
xhci_commands.c libpayload: xhci: Make XHCI stack usable on ARM 2014-08-14 23:41:21 +02:00
xhci_debug.c libpayload: xhci: Make XHCI stack usable on ARM 2014-08-14 23:41:21 +02:00
xhci_devconf.c libpayload: usb: Refactor USB enumeration to fix SuperSpeed devices 2014-09-04 01:59:15 +02:00
xhci_events.c libpayload: xhci: Make XHCI stack usable on ARM 2014-08-14 23:41:21 +02:00
xhci_private.h libpayload: usb: Refactor USB enumeration to fix SuperSpeed devices 2014-09-04 01:59:15 +02:00
xhci_rh.c libpayload: usb: xhci: Treat port reset as a port status change 2014-10-02 17:29:54 +02:00