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92f22e7c2a
Fix some bugs in the cgpt implementation of the flash I/O functions & load logic, it was validating too much at load time. Implement the create command for MTD BUG=chromium:221745 TEST=MTD version of run_cgpt_tests.sh passes BRANCH=none Original-Change-Id: I2f52637d82962f4d805aa827c5c37685f10e76ea Reviewed-on: https://gerrit.chromium.org/gerrit/47172 Tested-by: Albert Chaulk <achaulk@chromium.org> Reviewed-by: Bill Richardson <wfrichar@chromium.org> Reviewed-by: Randall Spangler <rspangler@chromium.org> Commit-Queue: Albert Chaulk <achaulk@chromium.org> (cherry picked from commit 931544744ba410dad267064b87d504b0b4c24772) Change-Id: If9364155fb2c030645adc6ee6f3fbe5373bcc153 Reviewed-on: https://gerrit.chromium.org/gerrit/49793 Commit-Queue: Albert Chaulk <achaulk@chromium.org> Reviewed-by: Albert Chaulk <achaulk@chromium.org> Tested-by: Albert Chaulk <achaulk@chromium.org>
73 lines
1.9 KiB
C
73 lines
1.9 KiB
C
/* Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*
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* Utility for ChromeOS-specific GPT partitions, Please see corresponding .c
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* files for more details.
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*/
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#include "flash_ts.h"
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#include "cgpt.h"
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#include "errno.h"
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#include "stdio.h"
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#include "string.h"
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inline int page_to_sector(const nand_geom *nand, int page) {
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return page * (nand->szofpg / nand->szofsector);
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}
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int nand_read_page(const nand_geom *nand, int page, void *buf, int size) {
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uint8_t *page_buff;
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if (Load((struct drive *)nand->user, &page_buff,
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page_to_sector(nand, page), nand->szofsector,
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(size + nand->szofsector - 1) / nand->szofsector)) {
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// page may be not erased. return default data.
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memset(buf, 0xff, size);
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return 0;
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}
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memcpy(buf, page_buff, size);
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free(page_buff);
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return 0;
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}
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int nand_write_page(const nand_geom *nand,
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int page, const void *buf, int buf_size) {
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void *page_buff;
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int ret;
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int sectors = (buf_size + nand->szofsector - 1) / nand->szofsector;
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int size = nand->szofsector * sectors;
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page_buff = malloc(size);
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if (!page_buff)
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return -1;
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memset(page_buff, 0xff, size);
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memcpy(page_buff, buf, buf_size);
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ret = Save((struct drive *)nand->user, page_buff, page_to_sector(nand, page),
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nand->szofsector, sectors);
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free(page_buff);
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return ret;
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}
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int nand_erase_block(const nand_geom *nand, int block) {
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int sector = block * (nand->szofblk / nand->szofsector);
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int res;
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void *erase_buff = malloc(nand->szofblk);
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if (!erase_buff)
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return -1;
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memset(erase_buff, 0xff, nand->szofblk);
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res = Save((struct drive *)nand->user, erase_buff, sector,
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nand->szofsector, nand->szofblk / nand->szofsector);
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free(erase_buff);
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return res;
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}
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int nand_is_bad_block(const nand_geom *nand, int block) {
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return 0;
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}
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