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u-boot/tools/ifdtool.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style 
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

1109 lines
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// SPDX-License-Identifier: GPL-2.0
/*
* ifdtool - Manage Intel Firmware Descriptor information
*
* Copyright 2014 Google, Inc
*
* From Coreboot project, but it got a serious code clean-up
* and a few new features
*/
#include <assert.h>
#include <fcntl.h>
#include <getopt.h>
#include <stdbool.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <linux/libfdt.h>
#include "ifdtool.h"
#undef DEBUG
#ifdef DEBUG
#define debug(fmt, args...) printf(fmt, ##args)
#else
#define debug(fmt, args...)
#endif
#define FD_SIGNATURE 0x0FF0A55A
#define FLREG_BASE(reg) ((reg & 0x00000fff) << 12);
#define FLREG_LIMIT(reg) (((reg & 0x0fff0000) >> 4) | 0xfff);
struct input_file {
char *fname;
unsigned int addr;
};
/**
* find_fd() - Find the flash description in the ROM image
*
* @image: Pointer to image
* @size: Size of image in bytes
* @return pointer to structure, or NULL if not found
*/
static struct fdbar_t *find_fd(char *image, int size)
{
uint32_t *ptr, *end;
/* Scan for FD signature */
for (ptr = (uint32_t *)image, end = ptr + size / 4; ptr < end; ptr++) {
if (*ptr == FD_SIGNATURE)
break;
}
if (ptr == end) {
printf("No Flash Descriptor found in this image\n");
return NULL;
}
debug("Found Flash Descriptor signature at 0x%08lx\n",
(char *)ptr - image);
return (struct fdbar_t *)ptr;
}
/**
* get_region() - Get information about the selected region
*
* @frba: Flash region list
* @region_type: Type of region (0..MAX_REGIONS-1)
* @region: Region information is written here
* @return 0 if OK, else -ve
*/
static int get_region(struct frba_t *frba, int region_type,
struct region_t *region)
{
if (region_type >= MAX_REGIONS) {
fprintf(stderr, "Invalid region type.\n");
return -1;
}
region->base = FLREG_BASE(frba->flreg[region_type]);
region->limit = FLREG_LIMIT(frba->flreg[region_type]);
region->size = region->limit - region->base + 1;
return 0;
}
static const char *region_name(int region_type)
{
static const char *const regions[] = {
"Flash Descriptor",
"BIOS",
"Intel ME",
"GbE",
"Platform Data"
};
assert(region_type < MAX_REGIONS);
return regions[region_type];
}
static const char *region_filename(int region_type)
{
static const char *const region_filenames[] = {
"flashregion_0_flashdescriptor.bin",
"flashregion_1_bios.bin",
"flashregion_2_intel_me.bin",
"flashregion_3_gbe.bin",
"flashregion_4_platform_data.bin"
};
assert(region_type < MAX_REGIONS);
return region_filenames[region_type];
}
static int dump_region(int num, struct frba_t *frba)
{
struct region_t region;
int ret;
ret = get_region(frba, num, &region);
if (ret)
return ret;
printf(" Flash Region %d (%s): %08x - %08x %s\n",
num, region_name(num), region.base, region.limit,
region.size < 1 ? "(unused)" : "");
return ret;
}
static void dump_frba(struct frba_t *frba)
{
int i;
printf("Found Region Section\n");
for (i = 0; i < MAX_REGIONS; i++) {
printf("FLREG%d: 0x%08x\n", i, frba->flreg[i]);
dump_region(i, frba);
}
}
static void decode_spi_frequency(unsigned int freq)
{
switch (freq) {
case SPI_FREQUENCY_20MHZ:
printf("20MHz");
break;
case SPI_FREQUENCY_33MHZ:
printf("33MHz");
break;
case SPI_FREQUENCY_50MHZ:
printf("50MHz");
break;
default:
printf("unknown<%x>MHz", freq);
}
}
static void decode_component_density(unsigned int density)
{
switch (density) {
case COMPONENT_DENSITY_512KB:
printf("512KiB");
break;
case COMPONENT_DENSITY_1MB:
printf("1MiB");
break;
case COMPONENT_DENSITY_2MB:
printf("2MiB");
break;
case COMPONENT_DENSITY_4MB:
printf("4MiB");
break;
case COMPONENT_DENSITY_8MB:
printf("8MiB");
break;
case COMPONENT_DENSITY_16MB:
printf("16MiB");
break;
default:
printf("unknown<%x>MiB", density);
}
}
static void dump_fcba(struct fcba_t *fcba)
{
printf("\nFound Component Section\n");
printf("FLCOMP 0x%08x\n", fcba->flcomp);
printf(" Dual Output Fast Read Support: %ssupported\n",
(fcba->flcomp & (1 << 30)) ? "" : "not ");
printf(" Read ID/Read Status Clock Frequency: ");
decode_spi_frequency((fcba->flcomp >> 27) & 7);
printf("\n Write/Erase Clock Frequency: ");
decode_spi_frequency((fcba->flcomp >> 24) & 7);
printf("\n Fast Read Clock Frequency: ");
decode_spi_frequency((fcba->flcomp >> 21) & 7);
printf("\n Fast Read Support: %ssupported",
(fcba->flcomp & (1 << 20)) ? "" : "not ");
printf("\n Read Clock Frequency: ");
decode_spi_frequency((fcba->flcomp >> 17) & 7);
printf("\n Component 2 Density: ");
decode_component_density((fcba->flcomp >> 3) & 7);
printf("\n Component 1 Density: ");
decode_component_density(fcba->flcomp & 7);
printf("\n");
printf("FLILL 0x%08x\n", fcba->flill);
printf(" Invalid Instruction 3: 0x%02x\n",
(fcba->flill >> 24) & 0xff);
printf(" Invalid Instruction 2: 0x%02x\n",
(fcba->flill >> 16) & 0xff);
printf(" Invalid Instruction 1: 0x%02x\n",
(fcba->flill >> 8) & 0xff);
printf(" Invalid Instruction 0: 0x%02x\n",
fcba->flill & 0xff);
printf("FLPB 0x%08x\n", fcba->flpb);
printf(" Flash Partition Boundary Address: 0x%06x\n\n",
(fcba->flpb & 0xfff) << 12);
}
static void dump_fpsba(struct fpsba_t *fpsba)
{
int i;
printf("Found PCH Strap Section\n");
for (i = 0; i < MAX_STRAPS; i++)
printf("PCHSTRP%-2d: 0x%08x\n", i, fpsba->pchstrp[i]);
}
static const char *get_enabled(int flag)
{
return flag ? "enabled" : "disabled";
}
static void decode_flmstr(uint32_t flmstr)
{
printf(" Platform Data Region Write Access: %s\n",
get_enabled(flmstr & (1 << 28)));
printf(" GbE Region Write Access: %s\n",
get_enabled(flmstr & (1 << 27)));
printf(" Intel ME Region Write Access: %s\n",
get_enabled(flmstr & (1 << 26)));
printf(" Host CPU/BIOS Region Write Access: %s\n",
get_enabled(flmstr & (1 << 25)));
printf(" Flash Descriptor Write Access: %s\n",
get_enabled(flmstr & (1 << 24)));
printf(" Platform Data Region Read Access: %s\n",
get_enabled(flmstr & (1 << 20)));
printf(" GbE Region Read Access: %s\n",
get_enabled(flmstr & (1 << 19)));
printf(" Intel ME Region Read Access: %s\n",
get_enabled(flmstr & (1 << 18)));
printf(" Host CPU/BIOS Region Read Access: %s\n",
get_enabled(flmstr & (1 << 17)));
printf(" Flash Descriptor Read Access: %s\n",
get_enabled(flmstr & (1 << 16)));
printf(" Requester ID: 0x%04x\n\n",
flmstr & 0xffff);
}
static void dump_fmba(struct fmba_t *fmba)
{
printf("Found Master Section\n");
printf("FLMSTR1: 0x%08x (Host CPU/BIOS)\n", fmba->flmstr1);
decode_flmstr(fmba->flmstr1);
printf("FLMSTR2: 0x%08x (Intel ME)\n", fmba->flmstr2);
decode_flmstr(fmba->flmstr2);
printf("FLMSTR3: 0x%08x (GbE)\n", fmba->flmstr3);
decode_flmstr(fmba->flmstr3);
}
static void dump_fmsba(struct fmsba_t *fmsba)
{
int i;
printf("Found Processor Strap Section\n");
for (i = 0; i < 4; i++)
printf("????: 0x%08x\n", fmsba->data[0]);
}
static void dump_jid(uint32_t jid)
{
printf(" SPI Component Device ID 1: 0x%02x\n",
(jid >> 16) & 0xff);
printf(" SPI Component Device ID 0: 0x%02x\n",
(jid >> 8) & 0xff);
printf(" SPI Component Vendor ID: 0x%02x\n",
jid & 0xff);
}
static void dump_vscc(uint32_t vscc)
{
printf(" Lower Erase Opcode: 0x%02x\n",
vscc >> 24);
printf(" Lower Write Enable on Write Status: 0x%02x\n",
vscc & (1 << 20) ? 0x06 : 0x50);
printf(" Lower Write Status Required: %s\n",
vscc & (1 << 19) ? "Yes" : "No");
printf(" Lower Write Granularity: %d bytes\n",
vscc & (1 << 18) ? 64 : 1);
printf(" Lower Block / Sector Erase Size: ");
switch ((vscc >> 16) & 0x3) {
case 0:
printf("256 Byte\n");
break;
case 1:
printf("4KB\n");
break;
case 2:
printf("8KB\n");
break;
case 3:
printf("64KB\n");
break;
}
printf(" Upper Erase Opcode: 0x%02x\n",
(vscc >> 8) & 0xff);
printf(" Upper Write Enable on Write Status: 0x%02x\n",
vscc & (1 << 4) ? 0x06 : 0x50);
printf(" Upper Write Status Required: %s\n",
vscc & (1 << 3) ? "Yes" : "No");
printf(" Upper Write Granularity: %d bytes\n",
vscc & (1 << 2) ? 64 : 1);
printf(" Upper Block / Sector Erase Size: ");
switch (vscc & 0x3) {
case 0:
printf("256 Byte\n");
break;
case 1:
printf("4KB\n");
break;
case 2:
printf("8KB\n");
break;
case 3:
printf("64KB\n");
break;
}
}
static void dump_vtba(struct vtba_t *vtba, int vtl)
{
int i;
int num = (vtl >> 1) < 8 ? (vtl >> 1) : 8;
printf("ME VSCC table:\n");
for (i = 0; i < num; i++) {
printf(" JID%d: 0x%08x\n", i, vtba->entry[i].jid);
dump_jid(vtba->entry[i].jid);
printf(" VSCC%d: 0x%08x\n", i, vtba->entry[i].vscc);
dump_vscc(vtba->entry[i].vscc);
}
printf("\n");
}
static void dump_oem(uint8_t *oem)
{
int i, j;
printf("OEM Section:\n");
for (i = 0; i < 4; i++) {
printf("%02x:", i << 4);
for (j = 0; j < 16; j++)
printf(" %02x", oem[(i<<4)+j]);
printf("\n");
}
printf("\n");
}
/**
* dump_fd() - Display a dump of the full flash description
*
* @image: Pointer to image
* @size: Size of image in bytes
* @return 0 if OK, -1 on error
*/
static int dump_fd(char *image, int size)
{
struct fdbar_t *fdb = find_fd(image, size);
if (!fdb)
return -1;
printf("FLMAP0: 0x%08x\n", fdb->flmap0);
printf(" NR: %d\n", (fdb->flmap0 >> 24) & 7);
printf(" FRBA: 0x%x\n", ((fdb->flmap0 >> 16) & 0xff) << 4);
printf(" NC: %d\n", ((fdb->flmap0 >> 8) & 3) + 1);
printf(" FCBA: 0x%x\n", ((fdb->flmap0) & 0xff) << 4);
printf("FLMAP1: 0x%08x\n", fdb->flmap1);
printf(" ISL: 0x%02x\n", (fdb->flmap1 >> 24) & 0xff);
printf(" FPSBA: 0x%x\n", ((fdb->flmap1 >> 16) & 0xff) << 4);
printf(" NM: %d\n", (fdb->flmap1 >> 8) & 3);
printf(" FMBA: 0x%x\n", ((fdb->flmap1) & 0xff) << 4);
printf("FLMAP2: 0x%08x\n", fdb->flmap2);
printf(" PSL: 0x%04x\n", (fdb->flmap2 >> 8) & 0xffff);
printf(" FMSBA: 0x%x\n", ((fdb->flmap2) & 0xff) << 4);
printf("FLUMAP1: 0x%08x\n", fdb->flumap1);
printf(" Intel ME VSCC Table Length (VTL): %d\n",
(fdb->flumap1 >> 8) & 0xff);
printf(" Intel ME VSCC Table Base Address (VTBA): 0x%06x\n\n",
(fdb->flumap1 & 0xff) << 4);
dump_vtba((struct vtba_t *)
(image + ((fdb->flumap1 & 0xff) << 4)),
(fdb->flumap1 >> 8) & 0xff);
dump_oem((uint8_t *)image + 0xf00);
dump_frba((struct frba_t *)(image + (((fdb->flmap0 >> 16) & 0xff)
<< 4)));
dump_fcba((struct fcba_t *)(image + (((fdb->flmap0) & 0xff) << 4)));
dump_fpsba((struct fpsba_t *)
(image + (((fdb->flmap1 >> 16) & 0xff) << 4)));
dump_fmba((struct fmba_t *)(image + (((fdb->flmap1) & 0xff) << 4)));
dump_fmsba((struct fmsba_t *)(image + (((fdb->flmap2) & 0xff) << 4)));
return 0;
}
/**
* write_regions() - Write each region from an image to its own file
*
* The filename to use in each case is fixed - see region_filename()
*
* @image: Pointer to image
* @size: Size of image in bytes
* @return 0 if OK, -ve on error
*/
static int write_regions(char *image, int size)
{
struct fdbar_t *fdb;
struct frba_t *frba;
int ret = 0;
int i;
fdb = find_fd(image, size);
if (!fdb)
return -1;
frba = (struct frba_t *)(image + (((fdb->flmap0 >> 16) & 0xff) << 4));
for (i = 0; i < MAX_REGIONS; i++) {
struct region_t region;
int region_fd;
ret = get_region(frba, i, &region);
if (ret)
return ret;
dump_region(i, frba);
if (region.size <= 0)
continue;
region_fd = open(region_filename(i),
O_WRONLY | O_CREAT | O_TRUNC, S_IRUSR |
S_IWUSR | S_IRGRP | S_IROTH);
if (write(region_fd, image + region.base, region.size) !=
region.size) {
perror("Error while writing");
ret = -1;
}
close(region_fd);
}
return ret;
}
static int perror_fname(const char *fmt, const char *fname)
{
char msg[strlen(fmt) + strlen(fname) + 1];
sprintf(msg, fmt, fname);
perror(msg);
return -1;
}
/**
* write_image() - Write the image to a file
*
* @filename: Filename to use for the image
* @image: Pointer to image
* @size: Size of image in bytes
* @return 0 if OK, -ve on error
*/
static int write_image(char *filename, char *image, int size)
{
int new_fd;
debug("Writing new image to %s\n", filename);
new_fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC, S_IRUSR |
S_IWUSR | S_IRGRP | S_IROTH);
if (new_fd < 0)
return perror_fname("Could not open file '%s'", filename);
if (write(new_fd, image, size) != size)
return perror_fname("Could not write file '%s'", filename);
close(new_fd);
return 0;
}
/**
* set_spi_frequency() - Set the SPI frequency to use when booting
*
* Several frequencies are supported, some of which work with fast devices.
* For SPI emulators, the slowest (SPI_FREQUENCY_20MHZ) is often used. The
* Intel boot system uses this information somehow on boot.
*
* The image is updated with the supplied value
*
* @image: Pointer to image
* @size: Size of image in bytes
* @freq: SPI frequency to use
*/
static void set_spi_frequency(char *image, int size, enum spi_frequency freq)
{
struct fdbar_t *fdb = find_fd(image, size);
struct fcba_t *fcba;
fcba = (struct fcba_t *)(image + (((fdb->flmap0) & 0xff) << 4));
/* clear bits 21-29 */
fcba->flcomp &= ~0x3fe00000;
/* Read ID and Read Status Clock Frequency */
fcba->flcomp |= freq << 27;
/* Write and Erase Clock Frequency */
fcba->flcomp |= freq << 24;
/* Fast Read Clock Frequency */
fcba->flcomp |= freq << 21;
}
/**
* set_em100_mode() - Set a SPI frequency that will work with Dediprog EM100
*
* @image: Pointer to image
* @size: Size of image in bytes
*/
static void set_em100_mode(char *image, int size)
{
struct fdbar_t *fdb = find_fd(image, size);
struct fcba_t *fcba;
fcba = (struct fcba_t *)(image + (((fdb->flmap0) & 0xff) << 4));
fcba->flcomp &= ~(1 << 30);
set_spi_frequency(image, size, SPI_FREQUENCY_20MHZ);
}
/**
* lock_descriptor() - Lock the NE descriptor so it cannot be updated
*
* @image: Pointer to image
* @size: Size of image in bytes
*/
static void lock_descriptor(char *image, int size)
{
struct fdbar_t *fdb = find_fd(image, size);
struct fmba_t *fmba;
/*
* TODO: Dynamically take Platform Data Region and GbE Region into
* account.
*/
fmba = (struct fmba_t *)(image + (((fdb->flmap1) & 0xff) << 4));
fmba->flmstr1 = 0x0a0b0000;
fmba->flmstr2 = 0x0c0d0000;
fmba->flmstr3 = 0x08080118;
}
/**
* unlock_descriptor() - Lock the NE descriptor so it can be updated
*
* @image: Pointer to image
* @size: Size of image in bytes
*/
static void unlock_descriptor(char *image, int size)
{
struct fdbar_t *fdb = find_fd(image, size);
struct fmba_t *fmba;
fmba = (struct fmba_t *)(image + (((fdb->flmap1) & 0xff) << 4));
fmba->flmstr1 = 0xffff0000;
fmba->flmstr2 = 0xffff0000;
fmba->flmstr3 = 0x08080118;
}
/**
* open_for_read() - Open a file for reading
*
* @fname: Filename to open
* @sizep: Returns file size in bytes
* @return 0 if OK, -1 on error
*/
int open_for_read(const char *fname, int *sizep)
{
int fd = open(fname, O_RDONLY);
struct stat buf;
if (fd == -1)
return perror_fname("Could not open file '%s'", fname);
if (fstat(fd, &buf) == -1)
return perror_fname("Could not stat file '%s'", fname);
*sizep = buf.st_size;
debug("File %s is %d bytes\n", fname, *sizep);
return fd;
}
/**
* inject_region() - Add a file to an image region
*
* This puts a file into a particular region of the flash. Several pre-defined
* regions are used.
*
* @image: Pointer to image
* @size: Size of image in bytes
* @region_type: Region where the file should be added
* @region_fname: Filename to add to the image
* @return 0 if OK, -ve on error
*/
int inject_region(char *image, int size, int region_type, char *region_fname)
{
struct fdbar_t *fdb = find_fd(image, size);
struct region_t region;
struct frba_t *frba;
int region_size;
int offset = 0;
int region_fd;
int ret;
if (!fdb)
exit(EXIT_FAILURE);
frba = (struct frba_t *)(image + (((fdb->flmap0 >> 16) & 0xff) << 4));
ret = get_region(frba, region_type, &region);
if (ret)
return -1;
if (region.size <= 0xfff) {
fprintf(stderr, "Region %s is disabled in target. Not injecting.\n",
region_name(region_type));
return -1;
}
region_fd = open_for_read(region_fname, &region_size);
if (region_fd < 0)
return region_fd;
if ((region_size > region.size) ||
((region_type != 1) && (region_size > region.size))) {
fprintf(stderr, "Region %s is %d(0x%x) bytes. File is %d(0x%x) bytes. Not injecting.\n",
region_name(region_type), region.size,
region.size, region_size, region_size);
return -1;
}
if ((region_type == 1) && (region_size < region.size)) {
fprintf(stderr, "Region %s is %d(0x%x) bytes. File is %d(0x%x) bytes. Padding before injecting.\n",
region_name(region_type), region.size,
region.size, region_size, region_size);
offset = region.size - region_size;
memset(image + region.base, 0xff, offset);
}
if (size < region.base + offset + region_size) {
fprintf(stderr, "Output file is too small. (%d < %d)\n",
size, region.base + offset + region_size);
return -1;
}
if (read(region_fd, image + region.base + offset, region_size)
!= region_size) {
perror("Could not read file");
return -1;
}
close(region_fd);
debug("Adding %s as the %s section\n", region_fname,
region_name(region_type));
return 0;
}
/**
* write_data() - Write some raw data into a region
*
* This puts a file into a particular place in the flash, ignoring the
* regions. Be careful not to overwrite something important.
*
* @image: Pointer to image
* @size: Size of image in bytes
* @addr: x86 ROM address to put file. The ROM ends at
* 0xffffffff so use an address relative to that. For an
* 8MB ROM the start address is 0xfff80000.
* @write_fname: Filename to add to the image
* @offset_uboot_top: Offset of the top of U-Boot
* @offset_uboot_start: Offset of the start of U-Boot
* @return number of bytes written if OK, -ve on error
*/
static int write_data(char *image, int size, unsigned int addr,
const char *write_fname, int offset_uboot_top,
int offset_uboot_start)
{
int write_fd, write_size;
int offset;
write_fd = open_for_read(write_fname, &write_size);
if (write_fd < 0)
return write_fd;
offset = (uint32_t)(addr + size);
if (offset_uboot_top) {
if (offset_uboot_start < offset &&
offset_uboot_top >= offset) {
fprintf(stderr, "U-Boot image overlaps with region '%s'\n",
write_fname);
fprintf(stderr,
"U-Boot finishes at offset %x, file starts at %x\n",
offset_uboot_top, offset);
return -EXDEV;
}
if (offset_uboot_start > offset &&
offset_uboot_start <= offset + write_size) {
fprintf(stderr, "U-Boot image overlaps with region '%s'\n",
write_fname);
fprintf(stderr,
"U-Boot starts at offset %x, file finishes at %x\n",
offset_uboot_start, offset + write_size);
return -EXDEV;
}
}
debug("Writing %s to offset %#x\n", write_fname, offset);
if (offset < 0 || offset + write_size > size) {
fprintf(stderr, "Output file is too small. (%d < %d)\n",
size, offset + write_size);
return -1;
}
if (read(write_fd, image + offset, write_size) != write_size) {
perror("Could not read file");
return -1;
}
close(write_fd);
return write_size;
}
static void print_version(void)
{
printf("ifdtool v%s -- ", IFDTOOL_VERSION);
printf("Copyright (C) 2014 Google Inc.\n\n");
printf("SPDX-License-Identifier: GPL-2.0+\n");
}
static void print_usage(const char *name)
{
printf("usage: %s [-vhdix?] <filename> [<outfile>]\n", name);
printf("\n"
" -d | --dump: dump intel firmware descriptor\n"
" -x | --extract: extract intel fd modules\n"
" -i | --inject <region>:<module> inject file <module> into region <region>\n"
" -w | --write <addr>:<file> write file to appear at memory address <addr>\n"
" multiple files can be written simultaneously\n"
" -s | --spifreq <20|33|50> set the SPI frequency\n"
" -e | --em100 set SPI frequency to 20MHz and disable\n"
" Dual Output Fast Read Support\n"
" -l | --lock Lock firmware descriptor and ME region\n"
" -u | --unlock Unlock firmware descriptor and ME region\n"
" -r | --romsize Specify ROM size\n"
" -D | --write-descriptor <file> Write descriptor at base\n"
" -c | --create Create a new empty image\n"
" -v | --version: print the version\n"
" -h | --help: print this help\n\n"
"<region> is one of Descriptor, BIOS, ME, GbE, Platform\n"
"\n");
}
/**
* get_two_words() - Convert a string into two words separated by :
*
* The supplied string is split at ':', two substrings are allocated and
* returned.
*
* @str: String to split
* @firstp: Returns first string
* @secondp: Returns second string
* @return 0 if OK, -ve if @str does not have a :
*/
static int get_two_words(const char *str, char **firstp, char **secondp)
{
const char *p;
p = strchr(str, ':');
if (!p)
return -1;
*firstp = strdup(str);
(*firstp)[p - str] = '\0';
*secondp = strdup(p + 1);
return 0;
}
int main(int argc, char *argv[])
{
int opt, option_index = 0;
int mode_dump = 0, mode_extract = 0, mode_inject = 0;
int mode_spifreq = 0, mode_em100 = 0, mode_locked = 0;
int mode_unlocked = 0, mode_write = 0, mode_write_descriptor = 0;
int create = 0;
char *region_type_string = NULL, *inject_fname = NULL;
char *desc_fname = NULL, *addr_str = NULL;
int region_type = -1, inputfreq = 0;
enum spi_frequency spifreq = SPI_FREQUENCY_20MHZ;
struct input_file input_file[WRITE_MAX], *ifile, *fdt = NULL;
unsigned char wr_idx, wr_num = 0;
int rom_size = -1;
bool write_it;
char *filename;
char *outfile = NULL;
struct stat buf;
int size = 0;
bool have_uboot = false;
int bios_fd;
char *image;
int ret;
static struct option long_options[] = {
{"create", 0, NULL, 'c'},
{"dump", 0, NULL, 'd'},
{"descriptor", 1, NULL, 'D'},
{"em100", 0, NULL, 'e'},
{"extract", 0, NULL, 'x'},
{"fdt", 1, NULL, 'f'},
{"inject", 1, NULL, 'i'},
{"lock", 0, NULL, 'l'},
{"romsize", 1, NULL, 'r'},
{"spifreq", 1, NULL, 's'},
{"unlock", 0, NULL, 'u'},
{"uboot", 1, NULL, 'U'},
{"write", 1, NULL, 'w'},
{"version", 0, NULL, 'v'},
{"help", 0, NULL, 'h'},
{0, 0, 0, 0}
};
while ((opt = getopt_long(argc, argv, "cdD:ef:hi:lr:s:uU:vw:x?",
long_options, &option_index)) != EOF) {
switch (opt) {
case 'c':
create = 1;
break;
case 'd':
mode_dump = 1;
break;
case 'D':
mode_write_descriptor = 1;
desc_fname = optarg;
break;
case 'e':
mode_em100 = 1;
break;
case 'i':
if (get_two_words(optarg, &region_type_string,
&inject_fname)) {
print_usage(argv[0]);
exit(EXIT_FAILURE);
}
if (!strcasecmp("Descriptor", region_type_string))
region_type = 0;
else if (!strcasecmp("BIOS", region_type_string))
region_type = 1;
else if (!strcasecmp("ME", region_type_string))
region_type = 2;
else if (!strcasecmp("GbE", region_type_string))
region_type = 3;
else if (!strcasecmp("Platform", region_type_string))
region_type = 4;
if (region_type == -1) {
fprintf(stderr, "No such region type: '%s'\n\n",
region_type_string);
print_usage(argv[0]);
exit(EXIT_FAILURE);
}
mode_inject = 1;
break;
case 'l':
mode_locked = 1;
break;
case 'r':
rom_size = strtol(optarg, NULL, 0);
debug("ROM size %d\n", rom_size);
break;
case 's':
/* Parse the requested SPI frequency */
inputfreq = strtol(optarg, NULL, 0);
switch (inputfreq) {
case 20:
spifreq = SPI_FREQUENCY_20MHZ;
break;
case 33:
spifreq = SPI_FREQUENCY_33MHZ;
break;
case 50:
spifreq = SPI_FREQUENCY_50MHZ;
break;
default:
fprintf(stderr, "Invalid SPI Frequency: %d\n",
inputfreq);
print_usage(argv[0]);
exit(EXIT_FAILURE);
}
mode_spifreq = 1;
break;
case 'u':
mode_unlocked = 1;
break;
case 'v':
print_version();
exit(EXIT_SUCCESS);
break;
case 'w':
case 'U':
case 'f':
ifile = &input_file[wr_num];
mode_write = 1;
if (wr_num < WRITE_MAX) {
if (get_two_words(optarg, &addr_str,
&ifile->fname)) {
print_usage(argv[0]);
exit(EXIT_FAILURE);
}
ifile->addr = strtoll(optarg, NULL, 0);
wr_num++;
} else {
fprintf(stderr,
"The number of files to write simultaneously exceeds the limitation (%d)\n",
WRITE_MAX);
}
break;
case 'x':
mode_extract = 1;
break;
case 'h':
case '?':
default:
print_usage(argv[0]);
exit(EXIT_SUCCESS);
break;
}
}
if (mode_locked == 1 && mode_unlocked == 1) {
fprintf(stderr, "Locking/Unlocking FD and ME are mutually exclusive\n");
exit(EXIT_FAILURE);
}
if (mode_inject == 1 && mode_write == 1) {
fprintf(stderr, "Inject/Write are mutually exclusive\n");
exit(EXIT_FAILURE);
}
if ((mode_dump + mode_extract + mode_inject +
(mode_spifreq | mode_em100 | mode_unlocked |
mode_locked)) > 1) {
fprintf(stderr, "You may not specify more than one mode.\n\n");
print_usage(argv[0]);
exit(EXIT_FAILURE);
}
if ((mode_dump + mode_extract + mode_inject + mode_spifreq +
mode_em100 + mode_locked + mode_unlocked + mode_write +
mode_write_descriptor) == 0 && !create) {
fprintf(stderr, "You need to specify a mode.\n\n");
print_usage(argv[0]);
exit(EXIT_FAILURE);
}
if (create && rom_size == -1) {
fprintf(stderr, "You need to specify a rom size when creating.\n\n");
exit(EXIT_FAILURE);
}
if (optind + 1 != argc) {
fprintf(stderr, "You need to specify a file.\n\n");
print_usage(argv[0]);
exit(EXIT_FAILURE);
}
if (have_uboot && !fdt) {
fprintf(stderr,
"You must supply a device tree file for U-Boot\n\n");
print_usage(argv[0]);
exit(EXIT_FAILURE);
}
filename = argv[optind];
if (optind + 2 != argc)
outfile = argv[optind + 1];
if (create)
bios_fd = open(filename, O_WRONLY | O_CREAT, 0666);
else
bios_fd = open(filename, outfile ? O_RDONLY : O_RDWR);
if (bios_fd == -1) {
perror("Could not open file");
exit(EXIT_FAILURE);
}
if (!create) {
if (fstat(bios_fd, &buf) == -1) {
perror("Could not stat file");
exit(EXIT_FAILURE);
}
size = buf.st_size;
}
debug("File %s is %d bytes\n", filename, size);
if (rom_size == -1)
rom_size = size;
image = malloc(rom_size);
if (!image) {
printf("Out of memory.\n");
exit(EXIT_FAILURE);
}
memset(image, '\xff', rom_size);
if (!create && read(bios_fd, image, size) != size) {
perror("Could not read file");
exit(EXIT_FAILURE);
}
if (size != rom_size) {
debug("ROM size changed to %d bytes\n", rom_size);
size = rom_size;
}
write_it = true;
ret = 0;
if (mode_dump) {
ret = dump_fd(image, size);
write_it = false;
}
if (mode_extract) {
ret = write_regions(image, size);
write_it = false;
}
if (mode_write_descriptor)
ret = write_data(image, size, -size, desc_fname, 0, 0);
if (mode_inject)
ret = inject_region(image, size, region_type, inject_fname);
if (mode_write) {
int offset_uboot_top = 0;
int offset_uboot_start = 0;
for (wr_idx = 0; wr_idx < wr_num; wr_idx++) {
ifile = &input_file[wr_idx];
ret = write_data(image, size, ifile->addr,
ifile->fname, offset_uboot_top,
offset_uboot_start);
if (ret < 0)
break;
}
}
if (mode_spifreq)
set_spi_frequency(image, size, spifreq);
if (mode_em100)
set_em100_mode(image, size);
if (mode_locked)
lock_descriptor(image, size);
if (mode_unlocked)
unlock_descriptor(image, size);
if (write_it) {
if (outfile) {
ret = write_image(outfile, image, size);
} else {
if (lseek(bios_fd, 0, SEEK_SET)) {
perror("Error while seeking");
ret = -1;
}
if (write(bios_fd, image, size) != size) {
perror("Error while writing");
ret = -1;
}
}
}
free(image);
close(bios_fd);
return ret < 0 ? 1 : 0;
}
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