Files
OpenCellular/include/common.h
Randall Spangler 7ecd1d6d3c Add system_is_locked() to prevent sysjump on consumer systems
This returns true when both HW and SW write protect are enabled.

Once WP is enabled, sysjump will be locked out.

system_is_locked() can be used to gate other dangerous-ish commands too.

Signed-off-by: Randall Spangler <rspangler@chromium.org>

BUG=chrome-os-partner:7468
TEST=manual

sysinfo -> unlocked, copy A
sysjump B -> works
flashwp lock
reboot
(make sure flashinfo shows WP asserted and flash locked; note there is a
 HW bug on proto1 which makes this flaky)
sysinfo -> locked, copy A
sysjump B -> fails
(remove WP screw)
reboot hard
flashwp unlock

Change-Id: I849b573675c2c1cb4c44b9a05d6973e38247ca23
2012-05-25 15:03:47 -07:00

49 lines
1.2 KiB
C

/* Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
/* common.h - Common includes for Chrome EC */
#ifndef __CROS_EC_COMMON_H
#define __CROS_EC_COMMON_H
#include <stdint.h>
/* List of common error codes that can be returned */
enum ec_error_list {
/* Success - no error */
EC_SUCCESS = 0,
/* Unknown error */
EC_ERROR_UNKNOWN = 1,
/* Function not implemented yet */
EC_ERROR_UNIMPLEMENTED = 2,
/* Overflow error; too much input provided. */
EC_ERROR_OVERFLOW = 3,
/* Timeout */
EC_ERROR_TIMEOUT = 4,
/* Invalid argument */
EC_ERROR_INVAL = 5,
/* Already in use */
EC_ERROR_BUSY = 6,
/* Access denied */
EC_ERROR_ACCESS_DENIED = 7,
/* Invalid console command param (PARAMn means parameter n is bad) */
EC_ERROR_PARAM1 = 11,
EC_ERROR_PARAM2 = 12,
EC_ERROR_PARAM3 = 13,
EC_ERROR_PARAM4 = 14,
EC_ERROR_PARAM5 = 15,
EC_ERROR_PARAM6 = 16,
EC_ERROR_PARAM7 = 17,
EC_ERROR_PARAM8 = 18,
EC_ERROR_PARAM9 = 19,
EC_ERROR_PARAM_COUNT = 20, /* Wrong number of params */
/* Module-internal error codes may use this range. */
EC_ERROR_INTERNAL_FIRST = 0x10000,
EC_ERROR_INTERNAL_LAST = 0x1FFFF
};
#endif /* __CROS_EC_COMMON_H */