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authorNico Huber <nico.huber@secunet.com>2012-11-12 16:20:32 +0100
committerRonald G. Minnich <rminnich@gmail.com>2012-11-14 17:45:16 +0100
commit6e711c6a97a9d4122615018121d0d2a37b642ed1 (patch)
tree745114ff1c6b485f4194818203edea3714cf56ce /payloads/libpayload/include/usb/usb.h
parentaaa212d17d0070850f1dd2195129788acc978a9f (diff)
downloadcoreboot-6e711c6a97a9d4122615018121d0d2a37b642ed1.tar.xz
libpayload: Add init() function to hci_t and rework uhci_reset()
uhci_reset() differs in semantics compared to the other HCI's reset() implementations. uhci_reset() does some initialization work after a controller reset. So move the initialization part to a new function, uhci_reinit(), which get's exported through a new entry in hci_t: hci_t.init(). Warning: This breaks code that relies on the current, special, counterintuitive behaviour of uhci_reset(). If one wants a working host controller after calling hci_t.reset(), he should call hci_t.init() afterwards. Change-Id: Ia7ce80865d12d11157645ce251f77f349f8e3c34 Signed-off-by: Nico Huber <nico.huber@secunet.com> Reviewed-on: http://review.coreboot.org/1851 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Diffstat (limited to 'payloads/libpayload/include/usb/usb.h')
-rw-r--r--payloads/libpayload/include/usb/usb.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/payloads/libpayload/include/usb/usb.h b/payloads/libpayload/include/usb/usb.h
index 8dd2304439..8e286b4250 100644
--- a/payloads/libpayload/include/usb/usb.h
+++ b/payloads/libpayload/include/usb/usb.h
@@ -127,6 +127,9 @@ struct usbdev_hc {
/* reset(): Perform a controller reset. The controller needs to
be (re)initialized afterwards to work (again). */
void (*reset) (hci_t *controller);
+ /* init(): Initialize a (previously reset) controller
+ to a working state. */
+ void (*init) (hci_t *controller);
/* shutdown(): Stop operation, detach host controller and shutdown
this driver instance. After calling shutdown() any
other usage of this hci_t* is invalid. */