104 lines
2.8 KiB
C
104 lines
2.8 KiB
C
/* host.c - Dummy disk driver to provide access to the hosts filesystem */
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/*
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* VAS_EBOOT -- GRand Unified Bootloader
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* Copyright (C) 2007 Free Software Foundation, Inc.
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*
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* VAS_EBOOT 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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* VAS_EBOOT 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 VAS_EBOOT. If not, see <http://www.gnu.org/licenses/>.
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*/
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/* When using the disk, make a reference to this module. Otherwise
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the user will end up with a useless module :-). */
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#include <config-util.h>
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#include <config.h>
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#include <VasEBoot/dl.h>
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#include <VasEBoot/disk.h>
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#include <VasEBoot/misc.h>
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#include <VasEBoot/emu/hostdisk.h>
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int VasEBoot_disk_host_i_want_a_reference;
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static int
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VasEBoot_host_iterate (VasEBoot_disk_dev_iterate_hook_t hook, void *hook_data,
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VasEBoot_disk_pull_t pull)
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{
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if (pull != VAS_EBOOT_DISK_PULL_NONE)
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return 0;
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if (hook ("host", hook_data))
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return 1;
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return 0;
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}
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static VasEBoot_err_t
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VasEBoot_host_open (const char *name, VasEBoot_disk_t disk)
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{
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if (VasEBoot_strcmp (name, "host"))
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return VasEBoot_error (VAS_EBOOT_ERR_UNKNOWN_DEVICE, "not a host disk");
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disk->total_sectors = 0;
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disk->id = 0;
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disk->data = 0;
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return VAS_EBOOT_ERR_NONE;
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}
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static void
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VasEBoot_host_close (VasEBoot_disk_t disk __attribute((unused)))
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{
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}
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static VasEBoot_err_t
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VasEBoot_host_read (VasEBoot_disk_t disk __attribute((unused)),
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VasEBoot_disk_addr_t sector __attribute((unused)),
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VasEBoot_size_t size __attribute((unused)),
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char *buf __attribute((unused)))
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{
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return VAS_EBOOT_ERR_OUT_OF_RANGE;
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}
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static VasEBoot_err_t
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VasEBoot_host_write (VasEBoot_disk_t disk __attribute ((unused)),
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VasEBoot_disk_addr_t sector __attribute ((unused)),
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VasEBoot_size_t size __attribute ((unused)),
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const char *buf __attribute ((unused)))
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{
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return VAS_EBOOT_ERR_OUT_OF_RANGE;
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}
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static struct VasEBoot_disk_dev VasEBoot_host_dev =
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{
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/* The only important line in this file :-) */
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.name = "host",
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.id = VAS_EBOOT_DISK_DEVICE_HOST_ID,
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.disk_iterate = VasEBoot_host_iterate,
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.disk_open = VasEBoot_host_open,
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.disk_close = VasEBoot_host_close,
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.disk_read = VasEBoot_host_read,
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.disk_write = VasEBoot_host_write,
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.next = 0
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};
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VAS_EBOOT_MOD_INIT(host)
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{
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VasEBoot_disk_dev_register (&VasEBoot_host_dev);
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}
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VAS_EBOOT_MOD_FINI(host)
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{
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VasEBoot_disk_dev_unregister (&VasEBoot_host_dev);
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}
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