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261 lines
7.9 KiB
261 lines
7.9 KiB
/* |
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* Copyright (c) 2009, Google Inc. |
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* All rights reserved. |
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* |
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* Copyright (c) 2009-2014, The Linux Foundation. All rights reserved. |
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* Portions Copyright 2014 Broadcom Corporation. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are met: |
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* * Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* * Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* * Neither the name of The Linux Foundation nor |
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* the names of its contributors may be used to endorse or promote |
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* products derived from this software without specific prior written |
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* permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
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* NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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* |
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* NOTE: |
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* Although it is very similar, this license text is not identical |
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* to the "BSD-3-Clause", therefore, DO NOT MODIFY THIS LICENSE TEXT! |
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*/ |
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#include <config.h> |
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#include <common.h> |
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#include <image-sparse.h> |
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#include <div64.h> |
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#include <malloc.h> |
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#include <part.h> |
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#include <sparse_format.h> |
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#include <linux/math64.h> |
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static void default_log(const char *ignored, char *response) {} |
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int write_sparse_image(struct sparse_storage *info, |
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const char *part_name, void *data, char *response) |
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{ |
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lbaint_t blk; |
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lbaint_t blkcnt; |
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lbaint_t blks; |
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uint32_t bytes_written = 0; |
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unsigned int chunk; |
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unsigned int offset; |
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unsigned int chunk_data_sz; |
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uint32_t *fill_buf = NULL; |
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uint32_t fill_val; |
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sparse_header_t *sparse_header; |
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chunk_header_t *chunk_header; |
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uint32_t total_blocks = 0; |
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int fill_buf_num_blks; |
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int i; |
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int j; |
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fill_buf_num_blks = CONFIG_IMAGE_SPARSE_FILLBUF_SIZE / info->blksz; |
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/* Read and skip over sparse image header */ |
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sparse_header = (sparse_header_t *)data; |
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data += sparse_header->file_hdr_sz; |
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if (sparse_header->file_hdr_sz > sizeof(sparse_header_t)) { |
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/* |
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* Skip the remaining bytes in a header that is longer than |
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* we expected. |
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*/ |
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data += (sparse_header->file_hdr_sz - sizeof(sparse_header_t)); |
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} |
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if (!info->mssg) |
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info->mssg = default_log; |
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debug("=== Sparse Image Header ===\n"); |
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debug("magic: 0x%x\n", sparse_header->magic); |
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debug("major_version: 0x%x\n", sparse_header->major_version); |
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debug("minor_version: 0x%x\n", sparse_header->minor_version); |
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debug("file_hdr_sz: %d\n", sparse_header->file_hdr_sz); |
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debug("chunk_hdr_sz: %d\n", sparse_header->chunk_hdr_sz); |
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debug("blk_sz: %d\n", sparse_header->blk_sz); |
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debug("total_blks: %d\n", sparse_header->total_blks); |
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debug("total_chunks: %d\n", sparse_header->total_chunks); |
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/* |
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* Verify that the sparse block size is a multiple of our |
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* storage backend block size |
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*/ |
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div_u64_rem(sparse_header->blk_sz, info->blksz, &offset); |
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if (offset) { |
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printf("%s: Sparse image block size issue [%u]\n", |
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__func__, sparse_header->blk_sz); |
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info->mssg("sparse image block size issue", response); |
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return -1; |
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} |
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puts("Flashing Sparse Image\n"); |
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/* Start processing chunks */ |
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blk = info->start; |
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for (chunk = 0; chunk < sparse_header->total_chunks; chunk++) { |
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/* Read and skip over chunk header */ |
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chunk_header = (chunk_header_t *)data; |
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data += sizeof(chunk_header_t); |
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if (chunk_header->chunk_type != CHUNK_TYPE_RAW) { |
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debug("=== Chunk Header ===\n"); |
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debug("chunk_type: 0x%x\n", chunk_header->chunk_type); |
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debug("chunk_data_sz: 0x%x\n", chunk_header->chunk_sz); |
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debug("total_size: 0x%x\n", chunk_header->total_sz); |
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} |
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if (sparse_header->chunk_hdr_sz > sizeof(chunk_header_t)) { |
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/* |
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* Skip the remaining bytes in a header that is longer |
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* than we expected. |
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*/ |
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data += (sparse_header->chunk_hdr_sz - |
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sizeof(chunk_header_t)); |
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} |
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chunk_data_sz = sparse_header->blk_sz * chunk_header->chunk_sz; |
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blkcnt = chunk_data_sz / info->blksz; |
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switch (chunk_header->chunk_type) { |
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case CHUNK_TYPE_RAW: |
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if (chunk_header->total_sz != |
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(sparse_header->chunk_hdr_sz + chunk_data_sz)) { |
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info->mssg("Bogus chunk size for chunk type Raw", |
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response); |
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return -1; |
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} |
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if (blk + blkcnt > info->start + info->size) { |
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printf( |
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"%s: Request would exceed partition size!\n", |
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__func__); |
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info->mssg("Request would exceed partition size!", |
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response); |
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return -1; |
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} |
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blks = info->write(info, blk, blkcnt, data); |
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/* blks might be > blkcnt (eg. NAND bad-blocks) */ |
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if (blks < blkcnt) { |
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printf("%s: %s" LBAFU " [" LBAFU "]\n", |
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__func__, "Write failed, block #", |
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blk, blks); |
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info->mssg("flash write failure", response); |
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return -1; |
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} |
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blk += blks; |
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bytes_written += blkcnt * info->blksz; |
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total_blocks += chunk_header->chunk_sz; |
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data += chunk_data_sz; |
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break; |
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case CHUNK_TYPE_FILL: |
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if (chunk_header->total_sz != |
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(sparse_header->chunk_hdr_sz + sizeof(uint32_t))) { |
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info->mssg("Bogus chunk size for chunk type FILL", response); |
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return -1; |
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} |
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fill_buf = (uint32_t *) |
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memalign(ARCH_DMA_MINALIGN, |
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ROUNDUP( |
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info->blksz * fill_buf_num_blks, |
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ARCH_DMA_MINALIGN)); |
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if (!fill_buf) { |
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info->mssg("Malloc failed for: CHUNK_TYPE_FILL", |
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response); |
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return -1; |
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} |
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fill_val = *(uint32_t *)data; |
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data = (char *)data + sizeof(uint32_t); |
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for (i = 0; |
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i < (info->blksz * fill_buf_num_blks / |
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sizeof(fill_val)); |
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i++) |
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fill_buf[i] = fill_val; |
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if (blk + blkcnt > info->start + info->size) { |
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printf( |
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"%s: Request would exceed partition size!\n", |
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__func__); |
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info->mssg("Request would exceed partition size!", |
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response); |
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return -1; |
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} |
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for (i = 0; i < blkcnt;) { |
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j = blkcnt - i; |
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if (j > fill_buf_num_blks) |
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j = fill_buf_num_blks; |
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blks = info->write(info, blk, j, fill_buf); |
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/* blks might be > j (eg. NAND bad-blocks) */ |
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if (blks < j) { |
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printf("%s: %s " LBAFU " [%d]\n", |
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__func__, |
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"Write failed, block #", |
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blk, j); |
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info->mssg("flash write failure", |
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response); |
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free(fill_buf); |
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return -1; |
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} |
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blk += blks; |
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i += j; |
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} |
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bytes_written += blkcnt * info->blksz; |
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total_blocks += chunk_data_sz / sparse_header->blk_sz; |
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free(fill_buf); |
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break; |
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case CHUNK_TYPE_DONT_CARE: |
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blk += info->reserve(info, blk, blkcnt); |
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total_blocks += chunk_header->chunk_sz; |
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break; |
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case CHUNK_TYPE_CRC32: |
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if (chunk_header->total_sz != |
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sparse_header->chunk_hdr_sz) { |
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info->mssg("Bogus chunk size for chunk type Dont Care", |
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response); |
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return -1; |
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} |
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total_blocks += chunk_header->chunk_sz; |
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data += chunk_data_sz; |
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break; |
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default: |
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printf("%s: Unknown chunk type: %x\n", __func__, |
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chunk_header->chunk_type); |
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info->mssg("Unknown chunk type", response); |
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return -1; |
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} |
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} |
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debug("Wrote %d blocks, expected to write %d blocks\n", |
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total_blocks, sparse_header->total_blks); |
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printf("........ wrote %u bytes to '%s'\n", bytes_written, part_name); |
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if (total_blocks != sparse_header->total_blks) { |
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info->mssg("sparse image write failure", response); |
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return -1; |
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} |
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return 0; |
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}
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