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authorPatrick Georgi <patrick.georgi@secunet.com>2011-11-04 12:06:06 +0100
committerStefan Reinauer <stefan.reinauer@coreboot.org>2011-11-04 22:14:29 +0100
commitbbc523146cfe732eef2ed81fee73c93b1c8e3b34 (patch)
treec5a2830a72d2c3dd134abd7c8c6adbc3a7e68f3f /payloads/libpayload/drivers/usb/usb.c
parent01178bb03b1ae9bf51962ad03f8f73929a48e4b2 (diff)
downloadcoreboot-bbc523146cfe732eef2ed81fee73c93b1c8e3b34.tar.xz
libpayload: Implement usb_exit
So far it was empty and never published. It now exists and shuts down all controllers (esp. EHCI which resets the port routers). Change-Id: I81e355e8a05778d6397675417b085a094a6f48ee Signed-off-by: Patrick Georgi <patrick.georgi@secunet.com> Reviewed-on: http://review.coreboot.org/397 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'payloads/libpayload/drivers/usb/usb.c')
-rw-r--r--payloads/libpayload/drivers/usb/usb.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/payloads/libpayload/drivers/usb/usb.c b/payloads/libpayload/drivers/usb/usb.c
index 4f423327d5..995b4c2918 100644
--- a/payloads/libpayload/drivers/usb/usb.c
+++ b/payloads/libpayload/drivers/usb/usb.c
@@ -68,6 +68,22 @@ detach_controller (hci_t *controller)
}
/**
+ * Shut down all controllers
+ */
+int
+usb_exit (void)
+{
+ if (usb_hcs == 0)
+ return 0;
+ hci_t *controller = usb_hcs;
+ while (controller != 0) {
+ controller->shutdown(controller);
+ controller = controller->next;
+ }
+ return 0;
+}
+
+/**
* Polls all hubs on all USB controllers, to find out about device changes
*/
void