-/* OpenFirmware-based filesystem
-
- Copyright (C) 1999 Benjamin Herrenschmidt
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
- BrokenFirmware cannot "read" from the network. We use tftp "load" method
- for network boot for now, we may provide our own NFS implementation in
- a later version. That means that we allocate a huge block of memory for
- the entire file before loading it. We use the location where the kernel puts
- RTAS, it's not used by the bootloader and if freed when the kernel is booted.
- This will have to be changed if we plan to instanciate RTAS in the bootloader
- itself
-
-*/
+/*
+ * fs_of.c - an implementation for OpenFirmware supported filesystems
+ *
+ * Copyright (C) 2001, 2002 Ethan Benson
+ *
+ * Copyright (C) 1999 Benjamin Herrenschmidt
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+/*
+ * BrokenFirmware cannot "read" from the network. We use tftp "load"
+ * method for network boot for now, we may provide our own NFS
+ * implementation in a later version. That means that we allocate a
+ * huge block of memory for the entire file before loading it. We use
+ * the location where the kernel puts RTAS, it's not used by the
+ * bootloader and if freed when the kernel is booted. This will have
+ * to be changed if we plan to instanciate RTAS in the bootloader
+ * itself
+ */
#include "ctype.h"
#include "types.h"
#include "prom.h"
#include "string.h"
#include "partition.h"
+#include "fdisk-part.h"
#include "fs.h"
#include "errors.h"
+#include "debug.h"
-#define LOAD_BUFFER_POS 0x600000
-#define LOAD_BUFFER_SIZE 0x400000
+#define LOAD_BUFFER_POS 0x1000000
+#define LOAD_BUFFER_SIZE 0x1000000
static int of_open(struct boot_file_t* file, const char* dev_name,
struct partition_t* part, const char* file_name);
static char buffer[1024];
char *filename;
char *p;
-
+
DEBUG_ENTER;
DEBUG_OPEN;
strncpy(buffer, dev_name, 768);
strcat(buffer, ":");
if (part) {
+ if (part->sys_ind == LINUX_RAID) {
+ DEBUG_F("skipping because partition is marked LINUX_RAID\n");
+ DEBUG_LEAVE(FILE_ERR_BAD_FSYS);
+ return FILE_ERR_BAD_FSYS;
+ }
char pn[3];
sprintf(pn, "%02d", part->part_number);
strcat(buffer, pn);
strcat(buffer, ",");
filename = strdup(file_name);
for (p = filename; *p; p++)
- if (*p == '/')
+ if (*p == '/')
*p = '\\';
strcat(buffer, filename);
free(filename);
DEBUG_LEAVE(FILE_ERR_BAD_FSYS);
return FILE_ERR_BAD_FSYS;
}
-
+
DEBUG_LEAVE(FILE_ERR_OK);
return FILE_ERR_OK;
}
strcat(buffer, ",");
filename = strdup(file_name);
for (p = filename; *p; p++)
- if (*p == '/')
+ if (*p == '/')
*p = '\\';
strcat(buffer, filename);
free(filename);
}
-
+
DEBUG_F("Opening: \"%s\"\n", buffer);
file->of_device = prom_open(buffer);
DEBUG_LEAVE(FILE_ERR_BAD_FSYS);
return FILE_ERR_BAD_FSYS;
}
-
- file->buffer = prom_claim((void *)LOAD_BUFFER_POS, LOAD_BUFFER_SIZE, 0);
+
+
+ file->buffer = prom_claim_chunk((void *)LOAD_BUFFER_POS,
+ LOAD_BUFFER_SIZE, 0);
if (file->buffer == (void *)-1) {
prom_printf("Can't claim memory for TFTP download\n");
prom_close(file->of_device);
DEBUG_F("TFP...\n");
file->len = prom_loadmethod(file->of_device, file->buffer);
-
+
DEBUG_F("result: %Ld\n", file->len);
-
+
DEBUG_LEAVE(FILE_ERR_OK);
return FILE_ERR_OK;
}
of_read(struct boot_file_t* file, unsigned int size, void* buffer)
{
unsigned int count;
-
+
count = prom_read(file->of_device, buffer, size);
file->pos += count;
return count;
of_net_read(struct boot_file_t* file, unsigned int size, void* buffer)
{
unsigned int count, av;
-
+
av = file->len - file->pos;
- count = size > av ? av : size;
+ count = size > av ? av : size;
memcpy(buffer, file->buffer + file->pos, count);
file->pos += count;
return count;
file->pos = newpos;
return FILE_ERR_OK;
}
-
+
return FILE_CANT_SEEK;
}
prom_close(file->of_device);
DEBUG_F("of_close called\n");
- DEBUG_LEAVE(0);
+ DEBUG_LEAVE(0);
return 0;
}
-/*
+/*
* Local variables:
- * c-file-style: "K&R"
+ * c-file-style: "k&r"
* c-basic-offset: 5
* End:
*/
projects / yaboot.git / blobdiff