u-boot/tools/kwbimage.c
Guilherme Maciel Ferreira f86ed6a8d5 tools: moved code common to all image tools to a separated module.
In order to avoid duplicating code and keep only one point of modification,
the functions, structs and defines useful for "dumpimage" were moved from
"mkimage" to a common module called "imagetool".

This modification also weakens the coupling between image types (FIT, IMX, MXS,
and so on) and image tools (mkimage and dumpimage). Any tool may initialize the
"imagetool" through register_image_tool() function, while the image types
register themselves within an image tool using the register_image_type()
function:

                                                      +---------------+
                                               +------|   fit_image   |
 +--------------+          +-----------+       |      +---------------+
 |    mkimage   |--------> |           | <-----+
 +--------------+          |           |              +---------------+
                           | imagetool | <------------|    imximage   |
 +--------------+          |           |              +---------------+
 |  dumpimage   |--------> |           | <-----+
 +--------------+          +-----------+       |      +---------------+
                                               +------| default_image |
                                                      +---------------+

          register_image_tool()           register_image_type()

Also, the struct "mkimage_params" was renamed to "image_tool_params" to make
clear its general purpose.

Signed-off-by: Guilherme Maciel Ferreira <guilherme.maciel.ferreira@gmail.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
2013-12-13 09:15:32 -05:00

386 lines
9.5 KiB
C

/*
* (C) Copyright 2008
* Marvell Semiconductor <www.marvell.com>
* Written-by: Prafulla Wadaskar <prafulla@marvell.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include "imagetool.h"
#include <image.h>
#include "kwbimage.h"
/*
* Supported commands for configuration file
*/
static table_entry_t kwbimage_cmds[] = {
{CMD_BOOT_FROM, "BOOT_FROM", "boot command", },
{CMD_NAND_ECC_MODE, "NAND_ECC_MODE", "NAND mode", },
{CMD_NAND_PAGE_SIZE, "NAND_PAGE_SIZE", "NAND size", },
{CMD_SATA_PIO_MODE, "SATA_PIO_MODE", "SATA mode", },
{CMD_DDR_INIT_DELAY, "DDR_INIT_DELAY", "DDR init dly", },
{CMD_DATA, "DATA", "Reg Write Data", },
{CMD_INVALID, "", "", },
};
/*
* Supported Boot options for configuration file
*/
static table_entry_t kwbimage_bootops[] = {
{IBR_HDR_SPI_ID, "spi", "SPI Flash", },
{IBR_HDR_NAND_ID, "nand", "NAND Flash", },
{IBR_HDR_SATA_ID, "sata", "Sata port", },
{IBR_HDR_PEX_ID, "pex", "PCIe port", },
{IBR_HDR_UART_ID, "uart", "Serial port", },
{-1, "", "Invalid", },
};
/*
* Supported NAND ecc options configuration file
*/
static table_entry_t kwbimage_eccmodes[] = {
{IBR_HDR_ECC_DEFAULT, "default", "Default mode", },
{IBR_HDR_ECC_FORCED_HAMMING, "hamming", "Hamming mode", },
{IBR_HDR_ECC_FORCED_RS, "rs", "RS mode", },
{IBR_HDR_ECC_DISABLED, "disabled", "ECC Disabled", },
{-1, "", "", },
};
static struct kwb_header kwbimage_header;
static int datacmd_cnt = 0;
static char * fname = "Unknown";
static int lineno = -1;
/*
* Report Error if xflag is set in addition to default
*/
static int kwbimage_check_params(struct image_tool_params *params)
{
if (!strlen (params->imagename)) {
printf ("Error:%s - Configuration file not specified, "
"it is needed for kwbimage generation\n",
params->cmdname);
return CFG_INVALID;
}
return ((params->dflag && (params->fflag || params->lflag)) ||
(params->fflag && (params->dflag || params->lflag)) ||
(params->lflag && (params->dflag || params->fflag)) ||
(params->xflag) || !(strlen (params->imagename)));
}
static uint32_t check_get_hexval (char *token)
{
uint32_t hexval;
if (!sscanf (token, "%x", &hexval)) {
printf ("Error:%s[%d] - Invalid hex data(%s)\n", fname,
lineno, token);
exit (EXIT_FAILURE);
}
return hexval;
}
/*
* Generates 8 bit checksum
*/
static uint8_t kwbimage_checksum8 (void *start, uint32_t len, uint8_t csum)
{
register uint8_t sum = csum;
volatile uint8_t *p = (volatile uint8_t *)start;
/* check len and return zero checksum if invalid */
if (!len)
return 0;
do {
sum += *p;
p++;
} while (--len);
return (sum);
}
/*
* Generates 32 bit checksum
*/
static uint32_t kwbimage_checksum32 (uint32_t *start, uint32_t len, uint32_t csum)
{
register uint32_t sum = csum;
volatile uint32_t *p = start;
/* check len and return zero checksum if invalid */
if (!len)
return 0;
if (len % sizeof(uint32_t)) {
printf ("Error:%s[%d] - length is not in multiple of %zu\n",
__FUNCTION__, len, sizeof(uint32_t));
return 0;
}
do {
sum += *p;
p++;
len -= sizeof(uint32_t);
} while (len > 0);
return (sum);
}
static void kwbimage_check_cfgdata (char *token, enum kwbimage_cmd cmdsw,
struct kwb_header *kwbhdr)
{
bhr_t *mhdr = &kwbhdr->kwb_hdr;
extbhr_t *exthdr = &kwbhdr->kwb_exthdr;
int i;
switch (cmdsw) {
case CMD_BOOT_FROM:
i = get_table_entry_id (kwbimage_bootops,
"Kwbimage boot option", token);
if (i < 0)
goto INVL_DATA;
mhdr->blockid = i;
printf ("Preparing kirkwood boot image to boot "
"from %s\n", token);
break;
case CMD_NAND_ECC_MODE:
i = get_table_entry_id (kwbimage_eccmodes,
"NAND ecc mode", token);
if (i < 0)
goto INVL_DATA;
mhdr->nandeccmode = i;
printf ("Nand ECC mode = %s\n", token);
break;
case CMD_NAND_PAGE_SIZE:
mhdr->nandpagesize =
(uint16_t) check_get_hexval (token);
printf ("Nand page size = 0x%x\n", mhdr->nandpagesize);
break;
case CMD_SATA_PIO_MODE:
mhdr->satapiomode =
(uint8_t) check_get_hexval (token);
printf ("Sata PIO mode = 0x%x\n",
mhdr->satapiomode);
break;
case CMD_DDR_INIT_DELAY:
mhdr->ddrinitdelay =
(uint16_t) check_get_hexval (token);
printf ("DDR init delay = %d msec\n", mhdr->ddrinitdelay);
break;
case CMD_DATA:
exthdr->rcfg[datacmd_cnt].raddr =
check_get_hexval (token);
break;
case CMD_INVALID:
goto INVL_DATA;
default:
goto INVL_DATA;
}
return;
INVL_DATA:
printf ("Error:%s[%d] - Invalid data\n", fname, lineno);
exit (EXIT_FAILURE);
}
/*
* this function sets the kwbimage header by-
* 1. Abstracting input command line arguments data
* 2. parses the kwbimage configuration file and update extebded header data
* 3. calculates header, extended header and image checksums
*/
static void kwdimage_set_ext_header (struct kwb_header *kwbhdr, char* name) {
bhr_t *mhdr = &kwbhdr->kwb_hdr;
extbhr_t *exthdr = &kwbhdr->kwb_exthdr;
FILE *fd = NULL;
int j;
char *line = NULL;
char * token, *saveptr1, *saveptr2;
size_t len = 0;
enum kwbimage_cmd cmd;
fname = name;
/* set dram register offset */
exthdr->dramregsoffs = (intptr_t)&exthdr->rcfg - (intptr_t)mhdr;
if ((fd = fopen (name, "r")) == 0) {
printf ("Error:%s - Can't open\n", fname);
exit (EXIT_FAILURE);
}
/* Simple kwimage.cfg file parser */
lineno=0;
while ((getline (&line, &len, fd)) > 0) {
lineno++;
token = strtok_r (line, "\r\n", &saveptr1);
/* drop all lines with zero tokens (= empty lines) */
if (token == NULL)
continue;
for (j = 0, cmd = CMD_INVALID, line = token; ; line = NULL) {
token = strtok_r (line, " \t", &saveptr2);
if (token == NULL)
break;
/* Drop all text starting with '#' as comments */
if (token[0] == '#')
break;
/* Process rest as valid config command line */
switch (j) {
case CFG_COMMAND:
cmd = get_table_entry_id (kwbimage_cmds,
"Kwbimage command", token);
if (cmd == CMD_INVALID)
goto INVL_CMD;
break;
case CFG_DATA0:
kwbimage_check_cfgdata (token, cmd, kwbhdr);
break;
case CFG_DATA1:
if (cmd != CMD_DATA)
goto INVL_CMD;
exthdr->rcfg[datacmd_cnt].rdata =
check_get_hexval (token);
if (datacmd_cnt > KWBIMAGE_MAX_CONFIG ) {
printf ("Error:%s[%d] - Found more "
"than max(%zd) allowed "
"data configurations\n",
fname, lineno,
KWBIMAGE_MAX_CONFIG);
exit (EXIT_FAILURE);
} else
datacmd_cnt++;
break;
default:
goto INVL_CMD;
}
j++;
}
}
if (line)
free (line);
fclose (fd);
return;
/*
* Invalid Command error reporring
*
* command CMD_DATA needs three strings on a line
* whereas other commands need only two.
*
* if more than two/three (as per command type) are observed,
* then error will be reported
*/
INVL_CMD:
printf ("Error:%s[%d] - Invalid command\n", fname, lineno);
exit (EXIT_FAILURE);
}
static void kwbimage_set_header (void *ptr, struct stat *sbuf, int ifd,
struct image_tool_params *params)
{
struct kwb_header *hdr = (struct kwb_header *)ptr;
bhr_t *mhdr = &hdr->kwb_hdr;
extbhr_t *exthdr = &hdr->kwb_exthdr;
uint32_t checksum;
int size;
/* Build and add image checksum header */
checksum = kwbimage_checksum32 ((uint32_t *)ptr, sbuf->st_size, 0);
size = write (ifd, &checksum, sizeof(uint32_t));
if (size != sizeof(uint32_t)) {
printf ("Error:%s - Checksum write %d bytes %s\n",
params->cmdname, size, params->imagefile);
exit (EXIT_FAILURE);
}
sbuf->st_size += sizeof(uint32_t);
mhdr->blocksize = sbuf->st_size - sizeof(struct kwb_header);
mhdr->srcaddr = sizeof(struct kwb_header);
mhdr->destaddr= params->addr;
mhdr->execaddr =params->ep;
mhdr->ext = 0x1; /* header extension appended */
kwdimage_set_ext_header (hdr, params->imagename);
/* calculate checksums */
mhdr->checkSum = kwbimage_checksum8 ((void *)mhdr, sizeof(bhr_t), 0);
exthdr->checkSum = kwbimage_checksum8 ((void *)exthdr,
sizeof(extbhr_t), 0);
}
static int kwbimage_verify_header (unsigned char *ptr, int image_size,
struct image_tool_params *params)
{
struct kwb_header *hdr = (struct kwb_header *)ptr;
bhr_t *mhdr = &hdr->kwb_hdr;
extbhr_t *exthdr = &hdr->kwb_exthdr;
uint8_t calc_hdrcsum;
uint8_t calc_exthdrcsum;
calc_hdrcsum = kwbimage_checksum8 ((void *)mhdr,
sizeof(bhr_t) - sizeof(uint8_t), 0);
if (calc_hdrcsum != mhdr->checkSum)
return -FDT_ERR_BADSTRUCTURE; /* mhdr csum not matched */
calc_exthdrcsum = kwbimage_checksum8 ((void *)exthdr,
sizeof(extbhr_t) - sizeof(uint8_t), 0);
if (calc_exthdrcsum != exthdr->checkSum)
return -FDT_ERR_BADSTRUCTURE; /* exthdr csum not matched */
return 0;
}
static void kwbimage_print_header (const void *ptr)
{
struct kwb_header *hdr = (struct kwb_header *) ptr;
bhr_t *mhdr = &hdr->kwb_hdr;
char *name = get_table_entry_name (kwbimage_bootops,
"Kwbimage boot option",
(int) mhdr->blockid);
printf ("Image Type: Kirkwood Boot from %s Image\n", name);
printf ("Data Size: ");
genimg_print_size (mhdr->blocksize - sizeof(uint32_t));
printf ("Load Address: %08x\n", mhdr->destaddr);
printf ("Entry Point: %08x\n", mhdr->execaddr);
}
static int kwbimage_check_image_types (uint8_t type)
{
if (type == IH_TYPE_KWBIMAGE)
return EXIT_SUCCESS;
else
return EXIT_FAILURE;
}
/*
* kwbimage type parameters definition
*/
static struct image_type_params kwbimage_params = {
.name = "Kirkwood Boot Image support",
.header_size = sizeof(struct kwb_header),
.hdr = (void*)&kwbimage_header,
.check_image_type = kwbimage_check_image_types,
.verify_header = kwbimage_verify_header,
.print_header = kwbimage_print_header,
.set_header = kwbimage_set_header,
.check_params = kwbimage_check_params,
};
void init_kwb_image_type (void)
{
register_image_type(&kwbimage_params);
}