mirror of
https://git.proxmox.com/git/fwupd
synced 2025-05-16 09:56:52 +00:00
70d13a5a58
Pre-filter the pending LuDeviceBootloaderRequest's after they are parsed so that we know exactly how many packets need to be sent to the hardware. As shown in https://github.com/hughsie/fwupd/issues/155, people get worried if the progress bar finishes before 100% as they'll wonder if all the writing completed successfully.
275 lines
8.2 KiB
C
275 lines
8.2 KiB
C
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
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*
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* Copyright (C) 2016-2017 Richard Hughes <richard@hughsie.com>
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*
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* Licensed under the GNU Lesser General Public License Version 2.1
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "config.h"
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#include <string.h>
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#include "lu-common.h"
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#include "lu-device-bootloader-texas.h"
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struct _LuDeviceBootloaderTexas
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{
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LuDeviceBootloader parent_instance;
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};
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G_DEFINE_TYPE (LuDeviceBootloaderTexas, lu_device_bootloader_texas, LU_TYPE_DEVICE_BOOTLOADER)
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static gboolean
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lu_device_bootloader_texas_erase_all (LuDevice *device, GError **error)
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{
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g_autoptr(LuDeviceBootloaderRequest) req = lu_device_bootloader_request_new ();
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req->cmd = LU_DEVICE_BOOTLOADER_CMD_FLASH_RAM;
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req->len = 0x01; /* magic number */
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req->data[0] = 0x00; /* magic number */
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if (!lu_device_bootloader_request (device, req, error)) {
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g_prefix_error (error, "failed to erase all pages: ");
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return FALSE;
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}
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return TRUE;
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}
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static gboolean
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lu_device_bootloader_texas_compute_and_test_crc (LuDevice *device, GError **error)
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{
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g_autoptr(LuDeviceBootloaderRequest) req = lu_device_bootloader_request_new ();
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req->cmd = LU_DEVICE_BOOTLOADER_CMD_FLASH_RAM;
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req->len = 0x01; /* magic number */
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req->data[0] = 0x03; /* magic number */
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if (!lu_device_bootloader_request (device, req, error)) {
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g_prefix_error (error, "failed to compute and test CRC: ");
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return FALSE;
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}
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if (req->cmd == LU_DEVICE_BOOTLOADER_CMD_FLASH_RAM_WRONG_CRC) {
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g_set_error_literal (error,
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G_IO_ERROR,
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G_IO_ERROR_FAILED,
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"CRC is incorrect");
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return FALSE;
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}
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return TRUE;
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}
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static gboolean
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lu_device_bootloader_texas_flash_ram_buffer (LuDevice *device, guint16 addr, GError **error)
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{
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g_autoptr(LuDeviceBootloaderRequest) req = lu_device_bootloader_request_new ();
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req->cmd = LU_DEVICE_BOOTLOADER_CMD_FLASH_RAM;
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req->addr = addr;
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req->len = 0x01; /* magic number */
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req->data[0] = 0x01; /* magic number */
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if (!lu_device_bootloader_request (device, req, error)) {
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g_prefix_error (error, "failed to flash ram buffer @%04x: ", addr);
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return FALSE;
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}
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if (req->cmd == LU_DEVICE_BOOTLOADER_CMD_FLASH_RAM_INVALID_ADDR) {
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g_set_error (error,
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G_IO_ERROR,
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G_IO_ERROR_FAILED,
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"failed to flash ram buffer @%04x: invalid flash page",
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addr);
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return FALSE;
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}
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if (req->cmd == LU_DEVICE_BOOTLOADER_CMD_FLASH_RAM_PAGE0_INVALID) {
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g_set_error (error,
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G_IO_ERROR,
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G_IO_ERROR_FAILED,
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"failed to flash ram buffer @%04x: invalid App JMP vector",
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addr);
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return FALSE;
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}
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if (req->cmd == LU_DEVICE_BOOTLOADER_CMD_FLASH_RAM_INVALID_ORDER) {
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g_set_error (error,
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G_IO_ERROR,
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G_IO_ERROR_FAILED,
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"failed to flash ram buffer @%04x: page flashed before page 0",
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addr);
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return FALSE;
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}
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return TRUE;
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}
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static gboolean
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lu_device_bootloader_texas_clear_ram_buffer (LuDevice *device, guint16 addr, GError **error)
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{
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g_autoptr(LuDeviceBootloaderRequest) req = lu_device_bootloader_request_new ();
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req->cmd = LU_DEVICE_BOOTLOADER_CMD_FLASH_RAM;
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req->addr = addr;
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req->len = 0x01; /* magic number */
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req->data[0] = 0x02; /* magic number */
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if (!lu_device_bootloader_request (device, req, error)) {
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g_prefix_error (error, "failed to clear ram buffer @%04x: ", addr);
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return FALSE;
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}
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return TRUE;
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}
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static gboolean
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lu_device_bootloader_texas_write_firmware (LuDevice *device,
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GBytes *fw,
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GFileProgressCallback progress_cb,
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gpointer progress_data,
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GError **error)
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{
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const LuDeviceBootloaderRequest *payload;
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g_autoptr(GPtrArray) reqs = NULL;
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g_autoptr(LuDeviceBootloaderRequest) req = lu_device_bootloader_request_new ();
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/* transfer payload */
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reqs = lu_device_bootloader_parse_requests (device, fw, error);
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if (reqs == NULL)
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return FALSE;
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/* erase all flash pages */
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if (!lu_device_bootloader_texas_erase_all (device, error))
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return FALSE;
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/* set existing RAM buffer to 0xff's */
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if (!lu_device_bootloader_texas_clear_ram_buffer (device, 0x0000, error))
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return FALSE;
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/* transfer payload */
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for (guint i = 0; i < reqs->len; i++) {
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payload = g_ptr_array_index (reqs, i);
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/* check size */
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if (payload->len != 16) {
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g_set_error (error,
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G_IO_ERROR,
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G_IO_ERROR_FAILED,
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"payload size invalid @%04x: got 0x%02x",
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payload->addr, payload->len);
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return FALSE;
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}
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/* build packet */
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req->cmd = LU_DEVICE_BOOTLOADER_CMD_WRITE_RAM_BUFFER;
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req->addr = payload->addr % 0x80;
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req->len = payload->len;
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memcpy (req->data, payload->data, payload->len);
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if (!lu_device_bootloader_request (device, req, error)) {
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g_prefix_error (error,
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"failed to write ram bufer @0x%02x: ",
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req->addr);
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return FALSE;
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}
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if (req->cmd == LU_DEVICE_BOOTLOADER_CMD_WRITE_RAM_BUFFER_INVALID_ADDR) {
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g_set_error (error,
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G_IO_ERROR,
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G_IO_ERROR_FAILED,
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"failed to write ram buffer @%04x: invalid location",
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req->addr);
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return FALSE;
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}
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if (req->cmd == LU_DEVICE_BOOTLOADER_CMD_WRITE_RAM_BUFFER_OVERFLOW) {
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g_set_error (error,
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G_IO_ERROR,
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G_IO_ERROR_FAILED,
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"failed to write ram buffer @%04x: invalid size 0x%02x",
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req->addr, req->len);
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return FALSE;
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}
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/* flush RAM buffer to EEPROM */
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if ((payload->addr + 0x10) % 0x80 == 0) {
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guint16 addr_start = payload->addr - (7 * 0x10);
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g_debug ("addr flush @ 0x%04x for 0x%04x",
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payload->addr, addr_start);
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if (!lu_device_bootloader_texas_flash_ram_buffer (device,
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addr_start,
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error)) {
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g_prefix_error (error,
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"failed to flash ram buffer @0x%04x: ",
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addr_start);
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return FALSE;
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}
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}
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/* update progress */
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if (progress_cb != NULL) {
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progress_cb ((goffset) i * 32,
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(goffset) reqs->len * 32,
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progress_data);
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}
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}
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/* check CRC */
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if (!lu_device_bootloader_texas_compute_and_test_crc (device, error))
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return FALSE;
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/* mark as complete */
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if (progress_cb != NULL) {
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progress_cb ((goffset) reqs->len * 32,
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(goffset) reqs->len * 32,
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progress_data);
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}
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/* success! */
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return TRUE;
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}
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static gchar *
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lu_device_bootloader_texas_get_bl_version (LuDevice *device, GError **error)
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{
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guint16 build;
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g_autoptr(LuDeviceBootloaderRequest) req = lu_device_bootloader_request_new ();
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req->cmd = LU_DEVICE_BOOTLOADER_CMD_GET_BL_VERSION;
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if (!lu_device_bootloader_request (device, req, error)) {
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g_prefix_error (error, "failed to get firmware version: ");
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return NULL;
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}
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/* BOTxx.yy_Bzzzz
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* 012345678901234 */
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build = (guint16) lu_buffer_read_uint8 ((const gchar *) req->data + 10) << 8;
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build += lu_buffer_read_uint8 ((const gchar *) req->data + 12);
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return lu_format_version ("BOT",
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lu_buffer_read_uint8 ((const gchar *) req->data + 3),
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lu_buffer_read_uint8 ((const gchar *) req->data + 6),
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build);
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}
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static gboolean
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lu_device_bootloader_texas_probe (LuDevice *device, GError **error)
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{
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g_autofree gchar *version_bl = NULL;
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version_bl = lu_device_bootloader_texas_get_bl_version (device, error);
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if (version_bl == NULL)
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return FALSE;
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lu_device_set_version_bl (device, version_bl);
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lu_device_set_version_fw (device, "RQR24.xx_Bxxxx");
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return TRUE;
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}
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static void
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lu_device_bootloader_texas_class_init (LuDeviceBootloaderTexasClass *klass)
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{
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LuDeviceClass *klass_device = LU_DEVICE_CLASS (klass);
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klass_device->write_firmware = lu_device_bootloader_texas_write_firmware;
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klass_device->probe = lu_device_bootloader_texas_probe;
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}
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static void
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lu_device_bootloader_texas_init (LuDeviceBootloaderTexas *device)
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{
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}
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