crossystem: read recovery switch status from chromeos_arm device The kernel chromeos_arm platform device provides the recovery status with the consideration of active polarity. Thus make crossystem to read from chromeos_arm device first. If this is not available, read directly from gpio pin status. BUG=chrome-os-partner:36425 BRANCH=none TEST=ran on kitty, 'crossystem recoverysw_cur' return 0 with recovery switch off 'crossystem recoverysw_cur' return 1 with recovery switch on Change-Id: Ie20630d7d07aeadf24044cd3ffc495df7cdd8a4a Signed-off-by: Ken Chang <kenc@nvidia.com> Reviewed-on: https://chromium-review.googlesource.com/246883 Tested-by: Titan Lee <titanlee@nvidia.com> Reviewed-by: Hung-Te Lin <hungte@chromium.org> Reviewed-by: Randall Spangler <rspangler@chromium.org> Commit-Queue: Titan Lee <titanlee@nvidia.com> (cherry picked from commit c93ddb60aae37fc06f614a1b79e6f3fee25b97c4) Reviewed-on: https://chromium-review.googlesource.com/248372 Reviewed-by: Andrew Bresticker <abrestic@chromium.org>
diff --git a/host/arch/arm/lib/crossystem_arch.c b/host/arch/arm/lib/crossystem_arch.c index 21e2169..b032ed3 100644 --- a/host/arch/arm/lib/crossystem_arch.c +++ b/host/arch/arm/lib/crossystem_arch.c
@@ -524,6 +524,11 @@ return VbGetVarGpio("developer-switch"); } else if (!strcasecmp(name, "recoverysw_cur")) { + int value; + value = VbGetPlatformGpioStatus("recovery"); + if (value != -1) + return value; + return VbGetVarGpio("recovery-switch"); } else if (!strcasecmp(name, "wpsw_cur")) { int value;