mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-15 06:33:45 +09:00
![Simon Glass](/assets/img/avatar_default.png)
To ease conversion to driver model, add helper functions which deal with calling each block device method. With driver model we can reimplement these functions with the same arguments. Use inline functions to avoid increasing code size on some boards. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Stephen Warren <swarren@nvidia.com>
260 lines
7.2 KiB
C
260 lines
7.2 KiB
C
/*
|
|
* (C) Copyright 2001
|
|
* Denis Peter, MPL AG Switzerland, d.peter@mpl.ch.
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <command.h>
|
|
#include "part_iso.h"
|
|
|
|
#ifdef HAVE_BLOCK_DEVICE
|
|
|
|
/* #define ISO_PART_DEBUG */
|
|
|
|
#ifdef ISO_PART_DEBUG
|
|
#define PRINTF(fmt,args...) printf (fmt ,##args)
|
|
#else
|
|
#define PRINTF(fmt,args...)
|
|
#endif
|
|
|
|
/* enable this if CDs are written with the PowerPC Platform ID */
|
|
#undef CHECK_FOR_POWERPC_PLATTFORM
|
|
#define CD_SECTSIZE 2048
|
|
|
|
static unsigned char tmpbuf[CD_SECTSIZE];
|
|
|
|
/* Convert char[4] in little endian format to the host format integer
|
|
*/
|
|
static inline unsigned long le32_to_int(unsigned char *le32)
|
|
{
|
|
return ((le32[3] << 24) +
|
|
(le32[2] << 16) +
|
|
(le32[1] << 8) +
|
|
le32[0]
|
|
);
|
|
}
|
|
/* Convert char[2] in little endian format to the host format integer
|
|
*/
|
|
static inline unsigned short le16_to_int(unsigned char *le16)
|
|
{
|
|
return ((le16[1] << 8) +
|
|
le16[0]
|
|
);
|
|
}
|
|
|
|
|
|
/* only boot records will be listed as valid partitions */
|
|
int part_get_info_iso_verb(struct blk_desc *dev_desc, int part_num,
|
|
disk_partition_t *info, int verb)
|
|
{
|
|
int i,offset,entry_num;
|
|
unsigned short *chksumbuf;
|
|
unsigned short chksum;
|
|
unsigned long newblkaddr,blkaddr,lastsect,bootaddr;
|
|
iso_boot_rec_t *pbr = (iso_boot_rec_t *)tmpbuf; /* boot record */
|
|
iso_pri_rec_t *ppr = (iso_pri_rec_t *)tmpbuf; /* primary desc */
|
|
iso_val_entry_t *pve = (iso_val_entry_t *)tmpbuf;
|
|
iso_init_def_entry_t *pide;
|
|
|
|
if (dev_desc->blksz != CD_SECTSIZE)
|
|
return -1;
|
|
|
|
/* the first sector (sector 0x10) must be a primary volume desc */
|
|
blkaddr=PVD_OFFSET;
|
|
if (blk_dread(dev_desc, PVD_OFFSET, 1, (ulong *)tmpbuf) != 1)
|
|
return -1;
|
|
if(ppr->desctype!=0x01) {
|
|
if(verb)
|
|
printf ("** First descriptor is NOT a primary desc on %d:%d **\n",
|
|
dev_desc->devnum, part_num);
|
|
return (-1);
|
|
}
|
|
if(strncmp((char *)ppr->stand_ident,"CD001",5)!=0) {
|
|
if(verb)
|
|
printf ("** Wrong ISO Ident: %s on %d:%d **\n",
|
|
ppr->stand_ident, dev_desc->devnum, part_num);
|
|
return (-1);
|
|
}
|
|
lastsect= ((ppr->firstsek_LEpathtab1_LE & 0x000000ff)<<24) +
|
|
((ppr->firstsek_LEpathtab1_LE & 0x0000ff00)<< 8) +
|
|
((ppr->firstsek_LEpathtab1_LE & 0x00ff0000)>> 8) +
|
|
((ppr->firstsek_LEpathtab1_LE & 0xff000000)>>24) ;
|
|
info->blksz=ppr->secsize_BE; /* assuming same block size for all entries */
|
|
PRINTF(" Lastsect:%08lx\n",lastsect);
|
|
for(i=blkaddr;i<lastsect;i++) {
|
|
PRINTF("Reading block %d\n", i);
|
|
if (blk_dread(dev_desc, i, 1, (ulong *)tmpbuf) != 1)
|
|
return -1;
|
|
if(ppr->desctype==0x00)
|
|
break; /* boot entry found */
|
|
if(ppr->desctype==0xff) {
|
|
if(verb)
|
|
printf ("** No valid boot catalog found on %d:%d **\n",
|
|
dev_desc->devnum, part_num);
|
|
return (-1);
|
|
}
|
|
}
|
|
/* boot entry found */
|
|
if(strncmp(pbr->ident_str,"EL TORITO SPECIFICATION",23)!=0) {
|
|
if(verb)
|
|
printf ("** Wrong El Torito ident: %s on %d:%d **\n",
|
|
pbr->ident_str, dev_desc->devnum, part_num);
|
|
return (-1);
|
|
}
|
|
bootaddr=le32_to_int(pbr->pointer);
|
|
PRINTF(" Boot Entry at: %08lX\n",bootaddr);
|
|
if (blk_dread(dev_desc, bootaddr, 1, (ulong *)tmpbuf) != 1) {
|
|
if(verb)
|
|
printf ("** Can't read Boot Entry at %lX on %d:%d **\n",
|
|
bootaddr, dev_desc->devnum, part_num);
|
|
return (-1);
|
|
}
|
|
chksum=0;
|
|
chksumbuf = (unsigned short *)tmpbuf;
|
|
for(i=0;i<0x10;i++)
|
|
chksum+=((chksumbuf[i] &0xff)<<8)+((chksumbuf[i] &0xff00)>>8);
|
|
if(chksum!=0) {
|
|
if(verb)
|
|
printf("** Checksum Error in booting catalog validation entry on %d:%d **\n",
|
|
dev_desc->devnum, part_num);
|
|
return (-1);
|
|
}
|
|
if((pve->key[0]!=0x55)||(pve->key[1]!=0xAA)) {
|
|
if(verb)
|
|
printf ("** Key 0x55 0xAA error on %d:%d **\n",
|
|
dev_desc->devnum, part_num);
|
|
return(-1);
|
|
}
|
|
#ifdef CHECK_FOR_POWERPC_PLATTFORM
|
|
if(pve->platform!=0x01) {
|
|
if(verb)
|
|
printf ("** No PowerPC platform CD on %d:%d **\n",
|
|
dev_desc->devnum, part_num);
|
|
return(-1);
|
|
}
|
|
#endif
|
|
/* the validation entry seems to be ok, now search the "partition" */
|
|
entry_num=0;
|
|
offset=0x20;
|
|
strcpy((char *)info->type, "U-Boot");
|
|
switch(dev_desc->if_type) {
|
|
case IF_TYPE_IDE:
|
|
case IF_TYPE_SATA:
|
|
case IF_TYPE_ATAPI:
|
|
sprintf ((char *)info->name, "hd%c%d",
|
|
'a' + dev_desc->devnum, part_num);
|
|
break;
|
|
case IF_TYPE_SCSI:
|
|
sprintf ((char *)info->name, "sd%c%d",
|
|
'a' + dev_desc->devnum, part_num);
|
|
break;
|
|
case IF_TYPE_USB:
|
|
sprintf ((char *)info->name, "usbd%c%d",
|
|
'a' + dev_desc->devnum, part_num);
|
|
break;
|
|
case IF_TYPE_DOC:
|
|
sprintf ((char *)info->name, "docd%c%d",
|
|
'a' + dev_desc->devnum, part_num);
|
|
break;
|
|
default:
|
|
sprintf ((char *)info->name, "xx%c%d",
|
|
'a' + dev_desc->devnum, part_num);
|
|
break;
|
|
}
|
|
/* the bootcatalog (including validation Entry) is limited to 2048Bytes
|
|
* (63 boot entries + validation entry) */
|
|
while(offset<2048) {
|
|
pide=(iso_init_def_entry_t *)&tmpbuf[offset];
|
|
if ((pide->boot_ind==0x88) ||
|
|
(pide->boot_ind==0x00)) { /* Header Id for default Sections Entries */
|
|
if(entry_num==part_num) { /* part found */
|
|
goto found;
|
|
}
|
|
entry_num++; /* count partitions Entries (boot and non bootables */
|
|
offset+=0x20;
|
|
continue;
|
|
}
|
|
if ((pide->boot_ind==0x90) || /* Section Header Entry */
|
|
(pide->boot_ind==0x91) || /* Section Header Entry (last) */
|
|
(pide->boot_ind==0x44)) { /* Extension Indicator */
|
|
offset+=0x20; /* skip unused entries */
|
|
}
|
|
else {
|
|
if(verb)
|
|
printf ("** Partition %d not found on device %d **\n",
|
|
part_num, dev_desc->devnum);
|
|
return(-1);
|
|
}
|
|
}
|
|
/* if we reach this point entire sector has been
|
|
* searched w/o succsess */
|
|
if(verb)
|
|
printf ("** Partition %d not found on device %d **\n",
|
|
part_num, dev_desc->devnum);
|
|
return(-1);
|
|
found:
|
|
if(pide->boot_ind!=0x88) {
|
|
if(verb)
|
|
printf("** Partition %d is not bootable on device %d **\n",
|
|
part_num, dev_desc->devnum);
|
|
return (-1);
|
|
}
|
|
switch(pide->boot_media) {
|
|
case 0x00: /* no emulation */
|
|
info->size=le16_to_int(pide->sec_cnt)>>2;
|
|
break;
|
|
case 0x01: info->size=2400>>2; break; /* 1.2MByte Floppy */
|
|
case 0x02: info->size=2880>>2; break; /* 1.44MByte Floppy */
|
|
case 0x03: info->size=5760>>2; break; /* 2.88MByte Floppy */
|
|
case 0x04: info->size=2880>>2; break; /* dummy (HD Emulation) */
|
|
default: info->size=0; break;
|
|
}
|
|
newblkaddr=le32_to_int(pide->rel_block_addr);
|
|
info->start=newblkaddr;
|
|
PRINTF(" part %d found @ %lx size %lx\n",part_num,newblkaddr,info->size);
|
|
return 0;
|
|
}
|
|
|
|
static int part_get_info_iso(struct blk_desc *dev_desc, int part_num,
|
|
disk_partition_t *info)
|
|
{
|
|
return part_get_info_iso_verb(dev_desc, part_num, info, 1);
|
|
}
|
|
|
|
static void print_part_iso(struct blk_desc *dev_desc)
|
|
{
|
|
disk_partition_t info;
|
|
int i;
|
|
|
|
if (part_get_info_iso_verb(dev_desc, 0, &info, 0) == -1) {
|
|
printf("** No boot partition found on device %d **\n",
|
|
dev_desc->devnum);
|
|
return;
|
|
}
|
|
printf("Part Start Sect x Size Type\n");
|
|
i=0;
|
|
do {
|
|
printf(" %2d " LBAFU " " LBAFU " %6ld %.32s\n",
|
|
i, info.start, info.size, info.blksz, info.type);
|
|
i++;
|
|
} while (part_get_info_iso_verb(dev_desc, i, &info, 0) != -1);
|
|
}
|
|
|
|
static int test_part_iso(struct blk_desc *dev_desc)
|
|
{
|
|
disk_partition_t info;
|
|
|
|
return part_get_info_iso_verb(dev_desc, 0, &info, 0);
|
|
}
|
|
|
|
U_BOOT_PART_TYPE(iso) = {
|
|
.name = "ISO",
|
|
.part_type = PART_TYPE_ISO,
|
|
.get_info = part_get_info_iso,
|
|
.print = print_part_iso,
|
|
.test = test_part_iso,
|
|
};
|
|
#endif
|