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Add broken screen

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In the new recovery process, a user will see 'broken' screen
instead of 'remove' screen, where usb stick presence is no longer
detected. A user instead has to hit esc+refresh+power to proceed
to recovery mode.

BUG=chromium:501060
BRANCH=tot
TEST=make runtests

Change-Id: Icd511c1ca892628b96befbb0a34c2c84b881c857
Reviewed-on: https://chromium-review.googlesource.com/304404
Commit-Ready: Daisuke Nojiri <dnojiri@chromium.org>
Tested-by: Daisuke Nojiri <dnojiri@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
This commit is contained in:
Daisuke Nojiri
2015-04-30 12:41:24 -07:00
committed by chrome-bot
parent f29dbbcbd5
commit 73a6372d22
6 changed files with 28 additions and 87 deletions
Download Patch File Download Diff File Expand all files Collapse all files

59
firmware/lib/vboot_api_kernel.c
View File

@@ -464,63 +464,24 @@ VbError_t VbBootRecovery(VbCommonParams *cparams, LoadKernelParams *p)
/*
* If the dev-mode switch is off and the user didn't press the recovery
* button, require removal of all external media.
* button (recovery was triggerred automatically), show 'broken' screen.
* The user can either only shutdown to abort or hit esc+refresh+power
* to initiate recovery as instructed on the screen.
*/
if (!(shared->flags & VBSD_BOOT_DEV_SWITCH_ON) &&
!(shared->flags & VBSD_BOOT_REC_SWITCH_ON)) {
VbDiskInfo *disk_info = NULL;
uint32_t disk_count = 0;
VBDEBUG(("VbBootRecovery() forcing device removal\n"));
/* If no media is detected initially, delay and make one extra
* attempt, in case devices appear later than expected. */
if (VBERROR_SUCCESS != VbExDiskGetInfo(&disk_info, &disk_count,
VB_DISK_FLAG_REMOVABLE))
disk_count = 0;
VbExDiskFreeInfo(disk_info, NULL);
if (0 == disk_count)
VbExSleepMs(REC_MEDIA_INIT_DELAY);
VBDEBUG(("VbBootRecovery() waiting for manual recovery\n"));
VbDisplayScreen(cparams, VB_SCREEN_OS_BROKEN, 0, &vnc);
while (1) {
disk_info = NULL;
disk_count = 0;
if (VBERROR_SUCCESS !=
VbExDiskGetInfo(&disk_info, &disk_count,
VB_DISK_FLAG_REMOVABLE))
disk_count = 0;
VbExDiskFreeInfo(disk_info, NULL);
if (0 == disk_count) {
VbDisplayScreen(cparams, VB_SCREEN_BLANK,
0, &vnc);
break;
}
VBDEBUG(("VbBootRecovery() "
"waiting for %d disks to be removed\n",
(int)disk_count));
VbDisplayScreen(cparams, VB_SCREEN_RECOVERY_REMOVE,
0, &vnc);
/*
* Scan keyboard more frequently than media, since x86
* platforms don't like to scan USB too rapidly.
*/
for (i = 0; i < REC_DISK_DELAY; i += REC_KEY_DELAY) {
VbCheckDisplayKey(cparams, VbExKeyboardRead(),
&vnc);
if (VbWantShutdown(cparams->gbb->flags))
return VBERROR_SHUTDOWN_REQUESTED;
VbExSleepMs(REC_KEY_DELAY);
}
VbCheckDisplayKey(cparams, VbExKeyboardRead(), &vnc);
if (VbWantShutdown(cparams->gbb->flags))
return VBERROR_SHUTDOWN_REQUESTED;
VbExSleepMs(REC_KEY_DELAY);
}
}
/* Loop and wait for a recovery image */
VBDEBUG(("VbBootRecovery() waiting for a recovery image\n"));
while (1) {
VBDEBUG(("VbBootRecovery() attempting to load kernel2\n"));
retval = VbTryLoadKernel(cparams, p, VB_DISK_FLAG_REMOVABLE);