25f16ec1f6
* Makefile.in (RMKFILES): Add missing arch i386-ieee1275 and i386-linuxbios. * commands/hexdump.c (grub_cmd_hexdump): Support dumping of device, change the buffer size to 4096 for cdrom device. * conf/i386-ieee1275.rmk (pkglib_MODULES): Add _linux.mod, linux.mod and nand.mod. (_linux_mod_SOURCES): New variable. (_linux_mod_CFLAGS): Likewise. (_linux_mod_LDFLAGS): Likewise. (linux_mod_SOURCES): Likewise. (linux_mod_CFLAGS): Likewise. (linux_mod_LDFLAGS): Likewise. (nand_mod_SOURCES): Likewise. (nand_mod_CFLAGS): Likewise. (nand_mod_LDFLAGS): Likewise. * disk/ieee1275/ofdisk.c (grub_ofdisk_open): Return GRUB_ERR_UNKNOWN_DEVICE instead of GRUB_ERR_BAD_DEVICE if no device type property. (nand device in olpc don't have this property) * include/grub/disk.h (grub_disk_dev_id): New macro GRUB_DISK_DEVICE_NAND_ID. * include/grub/i386/ieee1275/loader.h (grub_rescue_cmd_linux): New function prototype. (grub_rescue_cmd_initrd): Likewise. * include/grub/i386/linux.h (GRUB_LINUX_OFW_SIGNATURE): New macro. (linux_kernel_params): Add new member ofw_signature, ofw_num_items, ofw_cif_handler and ofw_idt, adjust padding number. * include/grub/i386/pc/memory.h (grub_upper_mem): Export it if GRUB_MACHINE_IEEE1275 is defined. * include/grub/ieee1275/ieee1275.h (grub_available_iterate): Use NESTED_FUNC_ATTR attribute on the hook parameter. * kern/powerpc/ieee1275/init.c (grub_claim_heap): Use NESTED_FUNC_ATTR on nested function heap_init. (grub_upper_mem): New variable for i386-ieee1275. (grub_get_extended_memory): New function for i386-ieee1275. (grub_machine_init): Call grub_get_extended_memory for i386-ieee1275. * kern/powerpc/ieee1275/openfw.c (grub_available_iterate): Use NESTED_FUNC_ATTR on the hook parameter. Don't quit if no device type property. * loader/i386/ieee1275/linux.c: New file. * loader/i386/ieee1275/linux_normal.c: New file. * disk/ieee1275/nand.c: New file.
211 lines
5.6 KiB
C
211 lines
5.6 KiB
C
/* ofdisk.c - Open Firmware disk access. */
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2004,2006,2007 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <grub/misc.h>
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#include <grub/disk.h>
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#include <grub/mm.h>
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#include <grub/ieee1275/ieee1275.h>
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#include <grub/ieee1275/ofdisk.h>
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static int
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grub_ofdisk_iterate (int (*hook) (const char *name))
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{
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auto int dev_iterate (struct grub_ieee1275_devalias *alias);
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int dev_iterate (struct grub_ieee1275_devalias *alias)
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{
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grub_dprintf ("disk", "disk name = %s\n", alias->name);
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if (grub_ieee1275_test_flag (GRUB_IEEE1275_FLAG_OFDISK_SDCARD_ONLY))
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{
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grub_ieee1275_phandle_t dev;
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char tmp[8];
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if (grub_ieee1275_finddevice (alias->path, &dev))
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{
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grub_dprintf ("disk", "finddevice (%s) failed\n", alias->path);
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return 0;
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}
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if (grub_ieee1275_get_property (dev, "iconname", tmp,
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sizeof tmp, 0))
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{
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grub_dprintf ("disk", "get iconname failed\n");
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return 0;
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}
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if (grub_strcmp (tmp, "sdmmc"))
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{
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grub_dprintf ("disk", "device is not an SD card\n");
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return 0;
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}
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}
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if (! grub_strcmp (alias->type, "block"))
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hook (alias->name);
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else if ((! grub_strcmp (alias->type, "scsi"))
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|| (! grub_strcmp (alias->type, "ide"))
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|| (! grub_strcmp (alias->type, "ata")))
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/* Search for block-type children of these bus controllers. */
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grub_children_iterate (alias->name, dev_iterate);
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return 0;
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}
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grub_devalias_iterate (dev_iterate);
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return 0;
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}
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static grub_err_t
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grub_ofdisk_open (const char *name, grub_disk_t disk)
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{
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grub_ieee1275_phandle_t dev;
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grub_ieee1275_ihandle_t dev_ihandle = 0;
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char *devpath;
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/* XXX: This should be large enough for any possible case. */
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char prop[64];
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grub_ssize_t actual;
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devpath = grub_strndup (name, grub_strlen (name) + 2);
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if (! devpath)
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return grub_errno;
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/* To access the complete disk add `:0'. */
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if (! grub_ieee1275_test_flag (GRUB_IEEE1275_FLAG_NO_PARTITION_0))
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grub_strcat (devpath, ":0");
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grub_dprintf ("disk", "Opening `%s'.\n", devpath);
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grub_ieee1275_open (devpath, &dev_ihandle);
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if (! dev_ihandle)
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{
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grub_error (GRUB_ERR_UNKNOWN_DEVICE, "Can't open device");
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goto fail;
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}
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grub_dprintf ("disk", "Opened `%s' as handle %p.\n", devpath, (void *) dev_ihandle);
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if (grub_ieee1275_finddevice (devpath, &dev))
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{
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grub_error (GRUB_ERR_UNKNOWN_DEVICE, "Can't read device properties");
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goto fail;
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}
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if (grub_ieee1275_get_property (dev, "device_type", prop, sizeof (prop),
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&actual))
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{
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grub_error (GRUB_ERR_UNKNOWN_DEVICE, "Can't read the device type");
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goto fail;
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}
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if (grub_strcmp (prop, "block"))
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{
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grub_error (GRUB_ERR_BAD_DEVICE, "Not a block device");
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goto fail;
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}
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/* XXX: There is no property to read the number of blocks. There
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should be a property `#blocks', but it is not there. Perhaps it
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is possible to use seek for this. */
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disk->total_sectors = 0xFFFFFFFFUL;
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/* XXX: Is it ok to use this? Perhaps it is better to use the path
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or some property. */
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disk->id = dev;
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/* XXX: Read this, somehow. */
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disk->has_partitions = 1;
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disk->data = (void *) dev_ihandle;
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grub_free (devpath);
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return 0;
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fail:
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if (dev_ihandle)
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grub_ieee1275_close (dev_ihandle);
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grub_free (devpath);
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return grub_errno;
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}
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static void
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grub_ofdisk_close (grub_disk_t disk)
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{
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grub_dprintf ("disk", "Closing handle %p.\n",
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(void *) disk->data);
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grub_ieee1275_close ((grub_ieee1275_ihandle_t) disk->data);
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}
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static grub_err_t
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grub_ofdisk_read (grub_disk_t disk, grub_disk_addr_t sector,
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grub_size_t size, char *buf)
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{
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grub_ssize_t status, actual;
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unsigned long long pos;
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grub_dprintf ("disk",
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"Reading handle %p: sector 0x%llx, size 0x%lx, buf %p.\n",
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(void *) disk->data, sector, (long) size, buf);
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pos = sector * 512UL;
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grub_ieee1275_seek ((grub_ieee1275_ihandle_t) disk->data, (int) (pos >> 32),
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(int) pos & 0xFFFFFFFFUL, &status);
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if (status < 0)
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return grub_error (GRUB_ERR_READ_ERROR,
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"Seek error, can't seek block %llu",
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sector);
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grub_ieee1275_read ((grub_ieee1275_ihandle_t) disk->data, buf,
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size * 512UL, &actual);
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if (actual != actual)
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return grub_error (GRUB_ERR_READ_ERROR, "Read error on block: %llu",
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sector);
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return 0;
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}
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static grub_err_t
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grub_ofdisk_write (grub_disk_t disk __attribute ((unused)),
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grub_disk_addr_t sector __attribute ((unused)),
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grub_size_t size __attribute ((unused)),
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const char *buf __attribute ((unused)))
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{
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return GRUB_ERR_NOT_IMPLEMENTED_YET;
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}
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static struct grub_disk_dev grub_ofdisk_dev =
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{
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.name = "ofdisk",
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.id = GRUB_DISK_DEVICE_OFDISK_ID,
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.iterate = grub_ofdisk_iterate,
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.open = grub_ofdisk_open,
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.close = grub_ofdisk_close,
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.read = grub_ofdisk_read,
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.write = grub_ofdisk_write,
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.next = 0
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};
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void
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grub_ofdisk_init (void)
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{
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grub_disk_dev_register (&grub_ofdisk_dev);
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}
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void
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grub_ofdisk_fini (void)
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{
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grub_disk_dev_unregister (&grub_ofdisk_dev);
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}
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