#include <config.h>
#include <common.h>
-#include <div64.h>
-#include <errno.h>
#include <image-sparse.h>
+#include <div64.h>
#include <malloc.h>
#include <part.h>
#include <sparse_format.h>
+#include <fastboot.h>
#include <linux/math64.h>
-typedef struct sparse_buffer {
- void *data;
- u32 length;
- u32 repeat;
- u16 type;
-} sparse_buffer_t;
-
-static unsigned int sparse_get_chunk_data_size(sparse_header_t *sparse,
- chunk_header_t *chunk)
-{
- return chunk->total_sz - sparse->chunk_hdr_sz;
-}
+#ifndef CONFIG_FASTBOOT_FLASH_FILLBUF_SIZE
+#define CONFIG_FASTBOOT_FLASH_FILLBUF_SIZE (1024 * 512)
+#endif
-static unsigned int sparse_block_size_to_storage(unsigned int size,
- sparse_storage_t *storage,
- sparse_header_t *sparse)
+void write_sparse_image(
+ struct sparse_storage *info, const char *part_name,
+ void *data, unsigned sz)
{
- return (unsigned int)lldiv((uint64_t)size * sparse->blk_sz,
- storage->block_sz);
-}
+ lbaint_t blk;
+ lbaint_t blkcnt;
+ lbaint_t blks;
+ uint32_t bytes_written = 0;
+ unsigned int chunk;
+ unsigned int offset;
+ unsigned int chunk_data_sz;
+ uint32_t *fill_buf = NULL;
+ uint32_t fill_val;
+ sparse_header_t *sparse_header;
+ chunk_header_t *chunk_header;
+ uint32_t total_blocks = 0;
+ int fill_buf_num_blks;
+ int i;
+ int j;
-static bool sparse_chunk_has_buffer(chunk_header_t *chunk)
-{
- switch (chunk->chunk_type) {
- case CHUNK_TYPE_RAW:
- case CHUNK_TYPE_FILL:
- return true;
+ fill_buf_num_blks = CONFIG_FASTBOOT_FLASH_FILLBUF_SIZE / info->blksz;
- default:
- return false;
- }
-}
-
-static sparse_header_t *sparse_parse_header(void **data)
-{
/* Read and skip over sparse image header */
- sparse_header_t *sparse_header = (sparse_header_t *) *data;
+ sparse_header = (sparse_header_t *)data;
- *data += sparse_header->file_hdr_sz;
+ data += sparse_header->file_hdr_sz;
+ if (sparse_header->file_hdr_sz > sizeof(sparse_header_t)) {
+ /*
+ * Skip the remaining bytes in a header that is longer than
+ * we expected.
+ */
+ data += (sparse_header->file_hdr_sz - sizeof(sparse_header_t));
+ }
debug("=== Sparse Image Header ===\n");
debug("magic: 0x%x\n", sparse_header->magic);
debug("total_blks: %d\n", sparse_header->total_blks);
debug("total_chunks: %d\n", sparse_header->total_chunks);
- return sparse_header;
-}
-
-static int sparse_parse_fill_chunk(sparse_header_t *sparse,
- chunk_header_t *chunk)
-{
- unsigned int chunk_data_sz = sparse_get_chunk_data_size(sparse, chunk);
-
- if (chunk_data_sz != sizeof(uint32_t))
- return -EINVAL;
-
- return 0;
-}
-
-static int sparse_parse_raw_chunk(sparse_header_t *sparse,
- chunk_header_t *chunk)
-{
- unsigned int chunk_data_sz = sparse_get_chunk_data_size(sparse, chunk);
-
- /* Check if the data size is a multiple of the main block size */
- if (chunk_data_sz % sparse->blk_sz)
- return -EINVAL;
-
- /* Check that the chunk size is consistent */
- if ((chunk_data_sz / sparse->blk_sz) != chunk->chunk_sz)
- return -EINVAL;
-
- return 0;
-}
-
-static chunk_header_t *sparse_parse_chunk(sparse_header_t *sparse,
- void **image)
-{
- chunk_header_t *chunk = (chunk_header_t *) *image;
- int ret;
-
- debug("=== Chunk Header ===\n");
- debug("chunk_type: 0x%x\n", chunk->chunk_type);
- debug("chunk_data_sz: 0x%x\n", chunk->chunk_sz);
- debug("total_size: 0x%x\n", chunk->total_sz);
-
- switch (chunk->chunk_type) {
- case CHUNK_TYPE_RAW:
- ret = sparse_parse_raw_chunk(sparse, chunk);
- if (ret)
- return NULL;
- break;
-
- case CHUNK_TYPE_FILL:
- ret = sparse_parse_fill_chunk(sparse, chunk);
- if (ret)
- return NULL;
- break;
-
- case CHUNK_TYPE_DONT_CARE:
- case CHUNK_TYPE_CRC32:
- debug("Ignoring chunk\n");
- break;
-
- default:
- printf("%s: Unknown chunk type: %x\n", __func__,
- chunk->chunk_type);
- return NULL;
- }
-
- *image += sparse->chunk_hdr_sz;
-
- return chunk;
-}
-
-static int sparse_get_fill_buffer(sparse_header_t *sparse,
- chunk_header_t *chunk,
- sparse_buffer_t *buffer,
- unsigned int blk_sz,
- void *data)
-{
- int i;
-
- buffer->type = CHUNK_TYPE_FILL;
-
- /*
- * We create a buffer of one block, and ask it to be
- * repeated as many times as needed.
- */
- buffer->length = blk_sz;
- buffer->repeat = (chunk->chunk_sz * sparse->blk_sz) / blk_sz;
-
- buffer->data = memalign(ARCH_DMA_MINALIGN,
- ROUNDUP(blk_sz,
- ARCH_DMA_MINALIGN));
- if (!buffer->data)
- return -ENOMEM;
-
- for (i = 0; i < (buffer->length / sizeof(uint32_t)); i++)
- ((uint32_t *)buffer->data)[i] = *(uint32_t *)(data);
-
- return 0;
-}
-
-static int sparse_get_raw_buffer(sparse_header_t *sparse,
- chunk_header_t *chunk,
- sparse_buffer_t *buffer,
- unsigned int blk_sz,
- void *data)
-{
- unsigned int chunk_data_sz = sparse_get_chunk_data_size(sparse, chunk);
-
- buffer->type = CHUNK_TYPE_RAW;
- buffer->length = chunk_data_sz;
- buffer->data = data;
- buffer->repeat = 1;
-
- return 0;
-}
-
-static sparse_buffer_t *sparse_get_data_buffer(sparse_header_t *sparse,
- chunk_header_t *chunk,
- unsigned int blk_sz,
- void **image)
-{
- unsigned int chunk_data_sz = sparse_get_chunk_data_size(sparse, chunk);
- sparse_buffer_t *buffer;
- void *data = *image;
- int ret;
-
- *image += chunk_data_sz;
-
- if (!sparse_chunk_has_buffer(chunk))
- return NULL;
-
- buffer = calloc(sizeof(sparse_buffer_t), 1);
- if (!buffer)
- return NULL;
-
- switch (chunk->chunk_type) {
- case CHUNK_TYPE_RAW:
- ret = sparse_get_raw_buffer(sparse, chunk, buffer, blk_sz,
- data);
- if (ret)
- return NULL;
- break;
-
- case CHUNK_TYPE_FILL:
- ret = sparse_get_fill_buffer(sparse, chunk, buffer, blk_sz,
- data);
- if (ret)
- return NULL;
- break;
-
- default:
- return NULL;
- }
-
- debug("=== Buffer ===\n");
- debug("length: 0x%x\n", buffer->length);
- debug("repeat: 0x%x\n", buffer->repeat);
- debug("type: 0x%x\n", buffer->type);
- debug("data: 0x%p\n", buffer->data);
-
- return buffer;
-}
-
-static void sparse_put_data_buffer(sparse_buffer_t *buffer)
-{
- if (buffer->type == CHUNK_TYPE_FILL)
- free(buffer->data);
-
- free(buffer);
-}
-
-int store_sparse_image(sparse_storage_t *storage,
- void *storage_priv, void *data)
-{
- unsigned int chunk, offset;
- sparse_header_t *sparse_header;
- chunk_header_t *chunk_header;
- sparse_buffer_t *buffer;
- uint32_t start;
- uint32_t total_blocks = 0;
- int i;
-
- debug("=== Storage ===\n");
- debug("name: %s\n", storage->name);
- debug("block_size: 0x%x\n", storage->block_sz);
- debug("start: 0x%x\n", storage->start);
- debug("size: 0x%x\n", storage->size);
- debug("write: 0x%p\n", storage->write);
- debug("priv: 0x%p\n", storage_priv);
-
- sparse_header = sparse_parse_header(&data);
- if (!sparse_header) {
- printf("sparse header issue\n");
- return -EINVAL;
- }
-
/*
* Verify that the sparse block size is a multiple of our
* storage backend block size
*/
- div_u64_rem(sparse_header->blk_sz, storage->block_sz, &offset);
+ div_u64_rem(sparse_header->blk_sz, info->blksz, &offset);
if (offset) {
printf("%s: Sparse image block size issue [%u]\n",
__func__, sparse_header->blk_sz);
- return -EINVAL;
+ fastboot_fail("sparse image block size issue");
+ return;
}
puts("Flashing Sparse Image\n");
/* Start processing chunks */
- start = storage->start;
+ blk = info->start;
for (chunk = 0; chunk < sparse_header->total_chunks; chunk++) {
- uint32_t blkcnt;
-
- chunk_header = sparse_parse_chunk(sparse_header, &data);
- if (!chunk_header) {
- printf("Unknown chunk type");
- return -EINVAL;
+ /* Read and skip over chunk header */
+ chunk_header = (chunk_header_t *)data;
+ data += sizeof(chunk_header_t);
+
+ if (chunk_header->chunk_type != CHUNK_TYPE_RAW) {
+ debug("=== Chunk Header ===\n");
+ debug("chunk_type: 0x%x\n", chunk_header->chunk_type);
+ debug("chunk_data_sz: 0x%x\n", chunk_header->chunk_sz);
+ debug("total_size: 0x%x\n", chunk_header->total_sz);
}
- /*
- * If we have a DONT_CARE type, just skip the blocks
- * and go on parsing the rest of the chunks
- */
- if (chunk_header->chunk_type == CHUNK_TYPE_DONT_CARE) {
- blkcnt = sparse_block_size_to_storage(chunk_header->chunk_sz,
- storage,
- sparse_header);
-#ifdef CONFIG_FASTBOOT_FLASH_MMC_DEV
- total_blocks += blkcnt;
-#endif
- continue;
+ if (sparse_header->chunk_hdr_sz > sizeof(chunk_header_t)) {
+ /*
+ * Skip the remaining bytes in a header that is longer
+ * than we expected.
+ */
+ data += (sparse_header->chunk_hdr_sz -
+ sizeof(chunk_header_t));
}
- /* Retrieve the buffer we're going to write */
- buffer = sparse_get_data_buffer(sparse_header, chunk_header,
- storage->block_sz, &data);
- if (!buffer)
- continue;
-
- blkcnt = (buffer->length / storage->block_sz) * buffer->repeat;
+ chunk_data_sz = sparse_header->blk_sz * chunk_header->chunk_sz;
+ blkcnt = chunk_data_sz / info->blksz;
+ switch (chunk_header->chunk_type) {
+ case CHUNK_TYPE_RAW:
+ if (chunk_header->total_sz !=
+ (sparse_header->chunk_hdr_sz + chunk_data_sz)) {
+ fastboot_fail(
+ "Bogus chunk size for chunk type Raw");
+ return;
+ }
- if ((start + total_blocks + blkcnt) >
- (storage->start + storage->size)) {
- printf("%s: Request would exceed partition size!\n",
- __func__);
- return -EINVAL;
- }
+ if (blk + blkcnt > info->start + info->size) {
+ printf(
+ "%s: Request would exceed partition size!\n",
+ __func__);
+ fastboot_fail(
+ "Request would exceed partition size!");
+ return;
+ }
- for (i = 0; i < buffer->repeat; i++) {
- unsigned long buffer_blk_cnt;
- int ret;
+ blks = info->write(info, blk, blkcnt, data);
+ /* blks might be > blkcnt (eg. NAND bad-blocks) */
+ if (blks < blkcnt) {
+ printf("%s: %s" LBAFU " [" LBAFU "]\n",
+ __func__, "Write failed, block #",
+ blk, blks);
+ fastboot_fail(
+ "flash write failure");
+ return;
+ }
+ blk += blks;
+ bytes_written += blkcnt * info->blksz;
+ total_blocks += chunk_header->chunk_sz;
+ data += chunk_data_sz;
+ break;
+
+ case CHUNK_TYPE_FILL:
+ if (chunk_header->total_sz !=
+ (sparse_header->chunk_hdr_sz + sizeof(uint32_t))) {
+ fastboot_fail(
+ "Bogus chunk size for chunk type FILL");
+ return;
+ }
- buffer_blk_cnt = buffer->length / storage->block_sz;
+ fill_buf = (uint32_t *)
+ memalign(ARCH_DMA_MINALIGN,
+ ROUNDUP(
+ info->blksz * fill_buf_num_blks,
+ ARCH_DMA_MINALIGN));
+ if (!fill_buf) {
+ fastboot_fail(
+ "Malloc failed for: CHUNK_TYPE_FILL");
+ return;
+ }
- ret = storage->write(storage, storage_priv,
- start + total_blocks,
- buffer_blk_cnt,
- buffer->data);
- if (ret < 0) {
- printf("%s: Write %d failed %d\n",
- __func__, i, ret);
- return ret;
+ fill_val = *(uint32_t *)data;
+ data = (char *)data + sizeof(uint32_t);
+
+ for (i = 0;
+ i < (info->blksz * fill_buf_num_blks /
+ sizeof(fill_val));
+ i++)
+ fill_buf[i] = fill_val;
+
+ if (blk + blkcnt > info->start + info->size) {
+ printf(
+ "%s: Request would exceed partition size!\n",
+ __func__);
+ fastboot_fail(
+ "Request would exceed partition size!");
+ return;
}
- total_blocks += ret;
+ for (i = 0; i < blkcnt;) {
+ j = blkcnt - i;
+ if (j > fill_buf_num_blks)
+ j = fill_buf_num_blks;
+ blks = info->write(info, blk, j, fill_buf);
+ /* blks might be > j (eg. NAND bad-blocks) */
+ if (blks < j) {
+ printf("%s: %s " LBAFU " [%d]\n",
+ __func__,
+ "Write failed, block #",
+ blk, j);
+ fastboot_fail(
+ "flash write failure");
+ free(fill_buf);
+ return;
+ }
+ blk += blks;
+ i += j;
+ }
+ bytes_written += blkcnt * info->blksz;
+ total_blocks += chunk_data_sz / sparse_header->blk_sz;
+ free(fill_buf);
+ break;
+
+ case CHUNK_TYPE_DONT_CARE:
+ blk += info->reserve(info, blk, blkcnt);
+ total_blocks += chunk_header->chunk_sz;
+ break;
+
+ case CHUNK_TYPE_CRC32:
+ if (chunk_header->total_sz !=
+ sparse_header->chunk_hdr_sz) {
+ fastboot_fail(
+ "Bogus chunk size for chunk type Dont Care");
+ return;
+ }
+ total_blocks += chunk_header->chunk_sz;
+ data += chunk_data_sz;
+ break;
+
+ default:
+ printf("%s: Unknown chunk type: %x\n", __func__,
+ chunk_header->chunk_type);
+ fastboot_fail("Unknown chunk type");
+ return;
}
-
- sparse_put_data_buffer(buffer);
}
debug("Wrote %d blocks, expected to write %d blocks\n",
- total_blocks,
- sparse_block_size_to_storage(sparse_header->total_blks,
- storage, sparse_header));
- printf("........ wrote %d blocks to '%s'\n", total_blocks,
- storage->name);
+ total_blocks, sparse_header->total_blks);
+ printf("........ wrote %u bytes to '%s'\n", bytes_written, part_name);
- if (total_blocks !=
- sparse_block_size_to_storage(sparse_header->total_blks,
- storage, sparse_header)) {
- printf("sparse image write failure\n");
- return -EIO;
- }
+ if (total_blocks != sparse_header->total_blks)
+ fastboot_fail("sparse image write failure");
+ else
+ fastboot_okay("");
- return 0;
+ return;
}
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