mirror of
https://github.com/Telecominfraproject/OpenCellular.git
synced 2025-11-24 02:05:01 +00:00
8bf0d5ff0f
BUG=chromium-os:17304 TEST=make && make runtests Change-Id: I4d0f8afd516649fba67119845ec1c4479ba54c43 Reviewed-on: http://gerrit.chromium.org/gerrit/4065 Reviewed-by: Stefan Reinauer <reinauer@chromium.org> Tested-by: Randall Spangler <rspangler@chromium.org>
120 lines
3.9 KiB
C
120 lines
3.9 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.
|
|
*
|
|
* High-level firmware wrapper API - entry points for init, firmware selection
|
|
*/
|
|
|
|
#include "gbb_header.h"
|
|
#include "load_firmware_fw.h"
|
|
#include "utility.h"
|
|
#include "vboot_api.h"
|
|
#include "vboot_common.h"
|
|
#include "vboot_nvstorage.h"
|
|
|
|
|
|
VbError_t VbSelectFirmware(VbCommonParams* cparams,
|
|
VbSelectFirmwareParams* fparams) {
|
|
VbSharedDataHeader* shared = (VbSharedDataHeader*)cparams->shared_data_blob;
|
|
LoadFirmwareParams p;
|
|
VbNvContext vnc;
|
|
int rv;
|
|
|
|
/* Start timer */
|
|
shared->timer_vb_select_firmware_enter = VbExGetTimer();
|
|
|
|
/* If recovery is requested, go straight to recovery without checking the
|
|
* RW firmware. */
|
|
if (VBNV_RECOVERY_NOT_REQUESTED != shared->recovery_reason) {
|
|
VBDEBUG(("VbSelectFirmware() detected recovery request, reason=%d.\n",
|
|
(int)shared->recovery_reason));
|
|
shared->timer_vb_select_firmware_exit = VbExGetTimer();
|
|
fparams->selected_firmware = VB_SELECT_FIRMWARE_RECOVERY;
|
|
return VBERROR_SUCCESS;
|
|
}
|
|
|
|
/* Copy parameters from wrapper API structs to old struct */
|
|
p.gbb_data = cparams->gbb_data;
|
|
p.gbb_size = cparams->gbb_size;
|
|
p.shared_data_blob = cparams->shared_data_blob;
|
|
p.shared_data_size = cparams->shared_data_size;
|
|
p.nv_context = &vnc;
|
|
|
|
p.verification_block_0 = fparams->verification_block_A;
|
|
p.verification_block_1 = fparams->verification_block_B;
|
|
p.verification_size_0 = fparams->verification_size_A;
|
|
p.verification_size_1 = fparams->verification_size_B;
|
|
|
|
/* Load NV storage */
|
|
VbExNvStorageRead(vnc.raw);
|
|
vnc.raw_changed = 0;
|
|
|
|
/* Use vboot_context and caller_internal to link our params with
|
|
* LoadFirmware()'s params. */
|
|
// TODO: clean up LoadFirmware() to use common params?
|
|
p.caller_internal = (void*)cparams;
|
|
cparams->vboot_context = (void*)&p;
|
|
|
|
/* Chain to LoadFirmware() */
|
|
rv = LoadFirmware(&p);
|
|
|
|
/* Save NV storage, if necessary */
|
|
if (vnc.raw_changed)
|
|
VbExNvStorageWrite(vnc.raw);
|
|
|
|
/* Copy amount of used shared data back to the wrapper API struct */
|
|
cparams->shared_data_size = (uint32_t)p.shared_data_size;
|
|
|
|
/* Stop timer */
|
|
shared->timer_vb_select_firmware_exit = VbExGetTimer();
|
|
|
|
/* Translate return codes */
|
|
if (LOAD_FIRMWARE_SUCCESS == rv) {
|
|
if (shared->flags & VBSD_LF_USE_RO_NORMAL) {
|
|
/* Request the read-only normal/dev code path */
|
|
fparams->selected_firmware = VB_SELECT_FIRMWARE_READONLY;
|
|
} else if (0 == shared->firmware_index)
|
|
fparams->selected_firmware = VB_SELECT_FIRMWARE_A;
|
|
else
|
|
fparams->selected_firmware = VB_SELECT_FIRMWARE_B;
|
|
return VBERROR_SUCCESS;
|
|
|
|
} else if (LOAD_FIRMWARE_REBOOT == rv) {
|
|
/* Reboot in the same mode we just left; copy the recovery reason */
|
|
VbNvSetup(&vnc);
|
|
VbNvSet(&vnc, VBNV_RECOVERY_REQUEST, shared->recovery_reason);
|
|
VbNvTeardown(&vnc);
|
|
if (vnc.raw_changed)
|
|
VbExNvStorageWrite(vnc.raw);
|
|
return 1;
|
|
|
|
} else {
|
|
/* Other error */
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
|
|
/* TODO: Move this inside vboot_firmware.c; for now this just translates to
|
|
* the original function call. */
|
|
void VbUpdateFirmwareBodyHash(VbCommonParams* cparams, uint8_t* data,
|
|
uint32_t size) {
|
|
LoadFirmwareParams* lfparams = (LoadFirmwareParams*)cparams->vboot_context;
|
|
|
|
UpdateFirmwareBodyHash(lfparams, data, size);
|
|
}
|
|
|
|
|
|
/* Translation layer from LoadFirmware()'s GetFirmwareBody() to the new
|
|
* wrapper API call.
|
|
*
|
|
* TODO: call directly from LoadFirmware() */
|
|
int GetFirmwareBody(LoadFirmwareParams* lfparams, uint64_t index) {
|
|
VbCommonParams* cparams = (VbCommonParams*)lfparams->caller_internal;
|
|
VbError_t rv;
|
|
|
|
rv = VbExHashFirmwareBody(cparams, (index ? VB_SELECT_FIRMWARE_B :
|
|
VB_SELECT_FIRMWARE_A));
|
|
return (VBERROR_SUCCESS == rv ? 0 : 1);
|
|
}
|