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![Gabe Black](/assets/img/avatar_default.png)
Currently, if the disk partition code is compiled with all of the parition types compiled out, it hits an #error which stops the build. This change adjusts that file so that those functions will fall through to their defaults in those cases instead of breaking the build. These functions are needed because other code calls them, and that code is needed because other config options are overly broad and bring in support we don't need along with support we do. Also reduce repetition of the 6-term #ifdef throughout the file. Signed-off-by: Gabe Black <gabeblack@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
634 lines
14 KiB
C
634 lines
14 KiB
C
/*
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* (C) Copyright 2001
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program 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 this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <command.h>
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#include <ide.h>
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#include <malloc.h>
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#include <part.h>
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#undef PART_DEBUG
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#ifdef PART_DEBUG
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#define PRINTF(fmt,args...) printf (fmt ,##args)
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#else
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#define PRINTF(fmt,args...)
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#endif
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/* Rather than repeat this expression each time, add a define for it */
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#if (defined(CONFIG_CMD_IDE) || \
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defined(CONFIG_CMD_SATA) || \
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defined(CONFIG_CMD_SCSI) || \
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defined(CONFIG_CMD_USB) || \
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defined(CONFIG_MMC) || \
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defined(CONFIG_SYSTEMACE) )
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#define HAVE_BLOCK_DEVICE
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#endif
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struct block_drvr {
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char *name;
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block_dev_desc_t* (*get_dev)(int dev);
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};
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static const struct block_drvr block_drvr[] = {
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#if defined(CONFIG_CMD_IDE)
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{ .name = "ide", .get_dev = ide_get_dev, },
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#endif
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#if defined(CONFIG_CMD_SATA)
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{.name = "sata", .get_dev = sata_get_dev, },
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#endif
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#if defined(CONFIG_CMD_SCSI)
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{ .name = "scsi", .get_dev = scsi_get_dev, },
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#endif
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#if defined(CONFIG_CMD_USB) && defined(CONFIG_USB_STORAGE)
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{ .name = "usb", .get_dev = usb_stor_get_dev, },
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#endif
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#if defined(CONFIG_MMC)
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{ .name = "mmc", .get_dev = mmc_get_dev, },
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#endif
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#if defined(CONFIG_SYSTEMACE)
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{ .name = "ace", .get_dev = systemace_get_dev, },
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#endif
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{ },
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};
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DECLARE_GLOBAL_DATA_PTR;
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#ifdef HAVE_BLOCK_DEVICE
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block_dev_desc_t *get_dev(const char *ifname, int dev)
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{
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const struct block_drvr *drvr = block_drvr;
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block_dev_desc_t* (*reloc_get_dev)(int dev);
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char *name;
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if (!ifname)
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return NULL;
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name = drvr->name;
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#ifdef CONFIG_NEEDS_MANUAL_RELOC
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name += gd->reloc_off;
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#endif
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while (drvr->name) {
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name = drvr->name;
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reloc_get_dev = drvr->get_dev;
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#ifdef CONFIG_NEEDS_MANUAL_RELOC
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name += gd->reloc_off;
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reloc_get_dev += gd->reloc_off;
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#endif
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if (strncmp(ifname, name, strlen(name)) == 0)
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return reloc_get_dev(dev);
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drvr++;
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}
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return NULL;
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}
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#else
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block_dev_desc_t *get_dev(const char *ifname, int dev)
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{
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return NULL;
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}
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#endif
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#ifdef HAVE_BLOCK_DEVICE
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/* ------------------------------------------------------------------------- */
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/*
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* reports device info to the user
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*/
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#ifdef CONFIG_LBA48
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typedef uint64_t lba512_t;
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#else
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typedef lbaint_t lba512_t;
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#endif
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/*
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* Overflowless variant of (block_count * mul_by / div_by)
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* when div_by > mul_by
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*/
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static lba512_t lba512_muldiv (lba512_t block_count, lba512_t mul_by, lba512_t div_by)
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{
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lba512_t bc_quot, bc_rem;
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/* x * m / d == x / d * m + (x % d) * m / d */
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bc_quot = block_count / div_by;
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bc_rem = block_count - div_by * bc_quot;
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return bc_quot * mul_by + (bc_rem * mul_by) / div_by;
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}
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void dev_print (block_dev_desc_t *dev_desc)
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{
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lba512_t lba512; /* number of blocks if 512bytes block size */
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if (dev_desc->type == DEV_TYPE_UNKNOWN) {
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puts ("not available\n");
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return;
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}
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switch (dev_desc->if_type) {
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case IF_TYPE_SCSI:
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printf ("(%d:%d) Vendor: %s Prod.: %s Rev: %s\n",
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dev_desc->target,dev_desc->lun,
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dev_desc->vendor,
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dev_desc->product,
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dev_desc->revision);
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break;
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case IF_TYPE_ATAPI:
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case IF_TYPE_IDE:
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case IF_TYPE_SATA:
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printf ("Model: %s Firm: %s Ser#: %s\n",
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dev_desc->vendor,
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dev_desc->revision,
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dev_desc->product);
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break;
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case IF_TYPE_SD:
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case IF_TYPE_MMC:
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case IF_TYPE_USB:
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printf ("Vendor: %s Rev: %s Prod: %s\n",
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dev_desc->vendor,
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dev_desc->revision,
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dev_desc->product);
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break;
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case IF_TYPE_DOC:
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puts("device type DOC\n");
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return;
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case IF_TYPE_UNKNOWN:
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puts("device type unknown\n");
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return;
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default:
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printf("Unhandled device type: %i\n", dev_desc->if_type);
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return;
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}
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puts (" Type: ");
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if (dev_desc->removable)
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puts ("Removable ");
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switch (dev_desc->type & 0x1F) {
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case DEV_TYPE_HARDDISK:
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puts ("Hard Disk");
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break;
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case DEV_TYPE_CDROM:
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puts ("CD ROM");
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break;
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case DEV_TYPE_OPDISK:
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puts ("Optical Device");
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break;
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case DEV_TYPE_TAPE:
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puts ("Tape");
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break;
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default:
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printf ("# %02X #", dev_desc->type & 0x1F);
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break;
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}
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puts ("\n");
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if ((dev_desc->lba * dev_desc->blksz)>0L) {
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ulong mb, mb_quot, mb_rem, gb, gb_quot, gb_rem;
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lbaint_t lba;
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lba = dev_desc->lba;
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lba512 = (lba * (dev_desc->blksz/512));
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/* round to 1 digit */
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mb = lba512_muldiv(lba512, 10, 2048); /* 2048 = (1024 * 1024) / 512 MB */
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mb_quot = mb / 10;
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mb_rem = mb - (10 * mb_quot);
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gb = mb / 1024;
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gb_quot = gb / 10;
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gb_rem = gb - (10 * gb_quot);
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#ifdef CONFIG_LBA48
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if (dev_desc->lba48)
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printf (" Supports 48-bit addressing\n");
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#endif
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#if defined(CONFIG_SYS_64BIT_LBA)
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printf (" Capacity: %ld.%ld MB = %ld.%ld GB (%Ld x %ld)\n",
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mb_quot, mb_rem,
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gb_quot, gb_rem,
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lba,
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dev_desc->blksz);
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#else
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printf (" Capacity: %ld.%ld MB = %ld.%ld GB (%ld x %ld)\n",
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mb_quot, mb_rem,
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gb_quot, gb_rem,
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(ulong)lba,
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dev_desc->blksz);
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#endif
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} else {
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puts (" Capacity: not available\n");
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}
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}
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#endif
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#ifdef HAVE_BLOCK_DEVICE
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void init_part (block_dev_desc_t * dev_desc)
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{
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#ifdef CONFIG_ISO_PARTITION
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if (test_part_iso(dev_desc) == 0) {
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dev_desc->part_type = PART_TYPE_ISO;
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return;
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}
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#endif
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#ifdef CONFIG_MAC_PARTITION
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if (test_part_mac(dev_desc) == 0) {
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dev_desc->part_type = PART_TYPE_MAC;
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return;
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}
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#endif
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/* must be placed before DOS partition detection */
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#ifdef CONFIG_EFI_PARTITION
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if (test_part_efi(dev_desc) == 0) {
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dev_desc->part_type = PART_TYPE_EFI;
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return;
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}
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#endif
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#ifdef CONFIG_DOS_PARTITION
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if (test_part_dos(dev_desc) == 0) {
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dev_desc->part_type = PART_TYPE_DOS;
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return;
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}
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#endif
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#ifdef CONFIG_AMIGA_PARTITION
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if (test_part_amiga(dev_desc) == 0) {
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dev_desc->part_type = PART_TYPE_AMIGA;
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return;
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}
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#endif
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dev_desc->part_type = PART_TYPE_UNKNOWN;
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}
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#if defined(CONFIG_MAC_PARTITION) || \
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defined(CONFIG_DOS_PARTITION) || \
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defined(CONFIG_ISO_PARTITION) || \
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defined(CONFIG_AMIGA_PARTITION) || \
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defined(CONFIG_EFI_PARTITION)
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static void print_part_header (const char *type, block_dev_desc_t * dev_desc)
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{
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puts ("\nPartition Map for ");
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switch (dev_desc->if_type) {
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case IF_TYPE_IDE:
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puts ("IDE");
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break;
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case IF_TYPE_SATA:
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puts ("SATA");
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break;
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case IF_TYPE_SCSI:
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puts ("SCSI");
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break;
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case IF_TYPE_ATAPI:
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puts ("ATAPI");
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break;
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case IF_TYPE_USB:
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puts ("USB");
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break;
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case IF_TYPE_DOC:
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puts ("DOC");
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break;
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case IF_TYPE_MMC:
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puts ("MMC");
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break;
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default:
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puts ("UNKNOWN");
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break;
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}
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printf (" device %d -- Partition Type: %s\n\n",
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dev_desc->dev, type);
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}
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#endif /* any CONFIG_..._PARTITION */
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void print_part (block_dev_desc_t * dev_desc)
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{
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switch (dev_desc->part_type) {
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#ifdef CONFIG_MAC_PARTITION
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case PART_TYPE_MAC:
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PRINTF ("## Testing for valid MAC partition ##\n");
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print_part_header ("MAC", dev_desc);
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print_part_mac (dev_desc);
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return;
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#endif
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#ifdef CONFIG_DOS_PARTITION
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case PART_TYPE_DOS:
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PRINTF ("## Testing for valid DOS partition ##\n");
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print_part_header ("DOS", dev_desc);
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print_part_dos (dev_desc);
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return;
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#endif
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#ifdef CONFIG_ISO_PARTITION
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case PART_TYPE_ISO:
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PRINTF ("## Testing for valid ISO Boot partition ##\n");
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print_part_header ("ISO", dev_desc);
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print_part_iso (dev_desc);
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return;
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#endif
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#ifdef CONFIG_AMIGA_PARTITION
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case PART_TYPE_AMIGA:
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PRINTF ("## Testing for a valid Amiga partition ##\n");
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print_part_header ("AMIGA", dev_desc);
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print_part_amiga (dev_desc);
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return;
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#endif
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#ifdef CONFIG_EFI_PARTITION
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case PART_TYPE_EFI:
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PRINTF ("## Testing for valid EFI partition ##\n");
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print_part_header ("EFI", dev_desc);
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print_part_efi (dev_desc);
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return;
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#endif
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}
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puts ("## Unknown partition table\n");
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}
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#endif /* HAVE_BLOCK_DEVICE */
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int get_partition_info(block_dev_desc_t *dev_desc, int part
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, disk_partition_t *info)
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{
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#ifdef HAVE_BLOCK_DEVICE
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#ifdef CONFIG_PARTITION_UUIDS
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/* The common case is no UUID support */
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info->uuid[0] = 0;
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#endif
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switch (dev_desc->part_type) {
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#ifdef CONFIG_MAC_PARTITION
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case PART_TYPE_MAC:
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if (get_partition_info_mac(dev_desc, part, info) == 0) {
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PRINTF("## Valid MAC partition found ##\n");
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return 0;
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}
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break;
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#endif
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#ifdef CONFIG_DOS_PARTITION
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case PART_TYPE_DOS:
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if (get_partition_info_dos(dev_desc, part, info) == 0) {
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PRINTF("## Valid DOS partition found ##\n");
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return 0;
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}
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break;
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#endif
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#ifdef CONFIG_ISO_PARTITION
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case PART_TYPE_ISO:
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if (get_partition_info_iso(dev_desc, part, info) == 0) {
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PRINTF("## Valid ISO boot partition found ##\n");
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return 0;
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}
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break;
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#endif
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#ifdef CONFIG_AMIGA_PARTITION
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case PART_TYPE_AMIGA:
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if (get_partition_info_amiga(dev_desc, part, info) == 0) {
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PRINTF("## Valid Amiga partition found ##\n");
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return 0;
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}
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break;
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#endif
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#ifdef CONFIG_EFI_PARTITION
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case PART_TYPE_EFI:
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if (get_partition_info_efi(dev_desc, part, info) == 0) {
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PRINTF("## Valid EFI partition found ##\n");
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return 0;
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}
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break;
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#endif
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default:
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break;
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}
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#endif /* HAVE_BLOCK_DEVICE */
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return -1;
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}
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int get_device(const char *ifname, const char *dev_str,
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block_dev_desc_t **dev_desc)
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{
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char *ep;
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int dev;
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dev = simple_strtoul(dev_str, &ep, 16);
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if (*ep) {
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printf("** Bad device specification %s %s **\n",
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ifname, dev_str);
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return -1;
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}
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*dev_desc = get_dev(ifname, dev);
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if (!(*dev_desc) || ((*dev_desc)->type == DEV_TYPE_UNKNOWN)) {
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printf("** Bad device %s %s **\n", ifname, dev_str);
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return -1;
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}
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return dev;
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}
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#define PART_UNSPECIFIED -2
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#define PART_AUTO -1
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#define MAX_SEARCH_PARTITIONS 16
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int get_device_and_partition(const char *ifname, const char *dev_part_str,
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block_dev_desc_t **dev_desc,
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disk_partition_t *info, int allow_whole_dev)
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{
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int ret = -1;
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const char *part_str;
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char *dup_str = NULL;
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const char *dev_str;
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int dev;
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char *ep;
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int p;
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int part;
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disk_partition_t tmpinfo;
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/* If no dev_part_str, use bootdevice environment variable */
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if (!dev_part_str || !strlen(dev_part_str) ||
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!strcmp(dev_part_str, "-"))
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dev_part_str = getenv("bootdevice");
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/* If still no dev_part_str, it's an error */
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if (!dev_part_str) {
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printf("** No device specified **\n");
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goto cleanup;
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}
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/* Separate device and partition ID specification */
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part_str = strchr(dev_part_str, ':');
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if (part_str) {
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dup_str = strdup(dev_part_str);
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dup_str[part_str - dev_part_str] = 0;
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dev_str = dup_str;
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part_str++;
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} else {
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dev_str = dev_part_str;
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}
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/* Look up the device */
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dev = get_device(ifname, dev_str, dev_desc);
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if (dev < 0)
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goto cleanup;
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/* Convert partition ID string to number */
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if (!part_str || !*part_str) {
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part = PART_UNSPECIFIED;
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} else if (!strcmp(part_str, "auto")) {
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part = PART_AUTO;
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} else {
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/* Something specified -> use exactly that */
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part = (int)simple_strtoul(part_str, &ep, 16);
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/*
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* Less than whole string converted,
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* or request for whole device, but caller requires partition.
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*/
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if (*ep || (part == 0 && !allow_whole_dev)) {
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printf("** Bad partition specification %s %s **\n",
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ifname, dev_part_str);
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goto cleanup;
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}
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}
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/*
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* No partition table on device,
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* or user requested partition 0 (entire device).
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*/
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if (((*dev_desc)->part_type == PART_TYPE_UNKNOWN) ||
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(part == 0)) {
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if (!(*dev_desc)->lba) {
|
|
printf("** Bad device size - %s %s **\n", ifname,
|
|
dev_str);
|
|
goto cleanup;
|
|
}
|
|
|
|
/*
|
|
* If user specified a partition ID other than 0,
|
|
* or the calling command only accepts partitions,
|
|
* it's an error.
|
|
*/
|
|
if ((part > 0) || (!allow_whole_dev)) {
|
|
printf("** No partition table - %s %s **\n", ifname,
|
|
dev_str);
|
|
goto cleanup;
|
|
}
|
|
|
|
info->start = 0;
|
|
info->size = (*dev_desc)->lba;
|
|
info->blksz = (*dev_desc)->blksz;
|
|
info->bootable = 0;
|
|
strcpy((char *)info->type, BOOT_PART_TYPE);
|
|
strcpy((char *)info->name, "Whole Disk");
|
|
#ifdef CONFIG_PARTITION_UUIDS
|
|
info->uuid[0] = 0;
|
|
#endif
|
|
|
|
ret = 0;
|
|
goto cleanup;
|
|
}
|
|
|
|
/*
|
|
* Now there's known to be a partition table,
|
|
* not specifying a partition means to pick partition 1.
|
|
*/
|
|
if (part == PART_UNSPECIFIED)
|
|
part = 1;
|
|
|
|
/*
|
|
* If user didn't specify a partition number, or did specify something
|
|
* other than "auto", use that partition number directly.
|
|
*/
|
|
if (part != PART_AUTO) {
|
|
ret = get_partition_info(*dev_desc, part, info);
|
|
if (ret) {
|
|
printf("** Invalid partition %d **\n", part);
|
|
goto cleanup;
|
|
}
|
|
} else {
|
|
/*
|
|
* Find the first bootable partition.
|
|
* If none are bootable, fall back to the first valid partition.
|
|
*/
|
|
part = 0;
|
|
for (p = 1; p <= MAX_SEARCH_PARTITIONS; p++) {
|
|
ret = get_partition_info(*dev_desc, p, info);
|
|
if (ret)
|
|
continue;
|
|
|
|
/*
|
|
* First valid partition, or new better partition?
|
|
* If so, save partition ID.
|
|
*/
|
|
if (!part || info->bootable)
|
|
part = p;
|
|
|
|
/* Best possible partition? Stop searching. */
|
|
if (info->bootable)
|
|
break;
|
|
|
|
/*
|
|
* We now need to search further for best possible.
|
|
* If we what we just queried was the best so far,
|
|
* save the info since we over-write it next loop.
|
|
*/
|
|
if (part == p)
|
|
tmpinfo = *info;
|
|
}
|
|
/* If we found any acceptable partition */
|
|
if (part) {
|
|
/*
|
|
* If we searched all possible partition IDs,
|
|
* return the first valid partition we found.
|
|
*/
|
|
if (p == MAX_SEARCH_PARTITIONS + 1)
|
|
*info = tmpinfo;
|
|
} else {
|
|
printf("** No valid partitions found **\n");
|
|
ret = -1;
|
|
goto cleanup;
|
|
}
|
|
}
|
|
if (strncmp((char *)info->type, BOOT_PART_TYPE, sizeof(info->type)) != 0) {
|
|
printf("** Invalid partition type \"%.32s\""
|
|
" (expect \"" BOOT_PART_TYPE "\")\n",
|
|
info->type);
|
|
ret = -1;
|
|
goto cleanup;
|
|
}
|
|
|
|
ret = part;
|
|
goto cleanup;
|
|
|
|
cleanup:
|
|
free(dup_str);
|
|
return ret;
|
|
}
|