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[int13] Improve debugging messages

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This commit is contained in:
Michael Brown 2009-03-31 06:26:51 +01:00
parent f7d2168c8e
commit b0c818d7b5
1 changed files with 11 additions and 4 deletions
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15
src/arch/i386/interface/pcbios/int13.c
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@ -98,6 +98,7 @@ static int int13_rw_sectors ( struct int13_drive *drive,
unsigned long lba;
unsigned int count;
userptr_t buffer;
int rc;
/* Validate blocksize */
if ( blockdev->blksize != INT13_BLKSIZE ) {
@ -122,8 +123,10 @@ static int int13_rw_sectors ( struct int13_drive *drive,
head, sector, lba, ix86->segs.es, ix86->regs.bx, count );
/* Read from / write to block device */
if ( io ( blockdev, lba, count, buffer ) != 0 )
if ( ( rc = io ( blockdev, lba, count, buffer ) ) != 0 ) {
DBG ( "INT 13 failed: %s\n", strerror ( rc ) );
return -INT13_STATUS_READ_ERROR;
}
return 0;
}
@ -248,6 +251,7 @@ static int int13_extended_rw ( struct int13_drive *drive,
uint64_t lba;
unsigned long count;
userptr_t buffer;
int rc;
/* Read parameters from disk address structure */
copy_from_real ( &addr, ix86->segs.ds, ix86->regs.si, sizeof ( addr ));
@ -259,8 +263,10 @@ static int int13_extended_rw ( struct int13_drive *drive,
addr.buffer.segment, addr.buffer.offset, count );
/* Read from / write to block device */
if ( io ( blockdev, lba, count, buffer ) != 0 )
if ( ( rc = io ( blockdev, lba, count, buffer ) ) != 0 ) {
DBG ( "INT 13 failed: %s\n", strerror ( rc ) );
return -INT13_STATUS_READ_ERROR;
}
return 0;
}
@ -387,7 +393,7 @@ static __asmcall void int13 ( struct i386_all_regs *ix86 ) {
/* Negative status indicates an error */
if ( status < 0 ) {
status = -status;
DBG ( "INT13 failed with status %x\n", status );
DBG ( "INT 13 returning failure status %x\n", status );
} else {
ix86->flags &= ~CF;
}
@ -652,7 +658,8 @@ int int13_boot ( unsigned int drive ) {
/* Jump to boot sector */
if ( ( rc = call_bootsector ( 0x0, 0x7c00, drive ) ) != 0 ) {
DBG ( "INT 13 drive %02x boot returned\n", drive );
DBG ( "INT 13 drive %02x boot returned: %s\n",
drive, strerror ( rc ) );
return rc;
}