#include "yaffs_checkptrw.h"
#include "yaffs_getblockinfo.h"
-static int yaffs2_checkpt_space_ok(yaffs_dev_t *dev)
+static int yaffs2_checkpt_space_ok(struct yaffs_dev *dev)
{
- int blocksAvailable = dev->n_erased_blocks - dev->param.n_reserved_blocks;
+ int blocks_avail = dev->n_erased_blocks - dev->param.n_reserved_blocks;
T(YAFFS_TRACE_CHECKPOINT,
- (TSTR("checkpt blocks available = %d" TENDSTR),
- blocksAvailable));
+ (TSTR("checkpt blocks available = %d" TENDSTR), blocks_avail));
- return (blocksAvailable <= 0) ? 0 : 1;
+ return (blocks_avail <= 0) ? 0 : 1;
}
-
-static int yaffs_checkpt_erase(yaffs_dev_t *dev)
+static int yaffs_checkpt_erase(struct yaffs_dev *dev)
{
int i;
if (!dev->param.erase_fn)
return 0;
- T(YAFFS_TRACE_CHECKPOINT, (TSTR("checking blocks %d to %d"TENDSTR),
- dev->internal_start_block, dev->internal_end_block));
+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("checking blocks %d to %d" TENDSTR),
+ dev->internal_start_block,
+ dev->internal_end_block));
for (i = dev->internal_start_block; i <= dev->internal_end_block; i++) {
- yaffs_block_info_t *bi = yaffs_get_block_info(dev, i);
+ struct yaffs_block_info *bi = yaffs_get_block_info(dev, i);
if (bi->block_state == YAFFS_BLOCK_STATE_CHECKPOINT) {
- T(YAFFS_TRACE_CHECKPOINT, (TSTR("erasing checkpt block %d"TENDSTR), i));
+ T(YAFFS_TRACE_CHECKPOINT,
+ (TSTR("erasing checkpt block %d" TENDSTR), i));
dev->n_erasures++;
- if (dev->param.erase_fn(dev, i - dev->block_offset /* realign */)) {
+ if (dev->param.
+ erase_fn(dev,
+ i - dev->block_offset /* realign */ )) {
bi->block_state = YAFFS_BLOCK_STATE_EMPTY;
dev->n_erased_blocks++;
- dev->n_free_chunks += dev->param.chunks_per_block;
+ dev->n_free_chunks +=
+ dev->param.chunks_per_block;
} else {
dev->param.bad_block_fn(dev, i);
bi->block_state = YAFFS_BLOCK_STATE_DEAD;
return 1;
}
-
-static void yaffs2_checkpt_find_erased_block(yaffs_dev_t *dev)
+static void yaffs2_checkpt_find_erased_block(struct yaffs_dev *dev)
{
- int i;
- int blocksAvailable = dev->n_erased_blocks - dev->param.n_reserved_blocks;
+ int i;
+ int blocks_avail = dev->n_erased_blocks - dev->param.n_reserved_blocks;
T(YAFFS_TRACE_CHECKPOINT,
- (TSTR("allocating checkpt block: erased %d reserved %d avail %d next %d "TENDSTR),
- dev->n_erased_blocks, dev->param.n_reserved_blocks, blocksAvailable, dev->checkpt_next_block));
+ (TSTR
+ ("allocating checkpt block: erased %d reserved %d avail %d next %d "
+ TENDSTR), dev->n_erased_blocks, dev->param.n_reserved_blocks,
+ blocks_avail, dev->checkpt_next_block));
if (dev->checkpt_next_block >= 0 &&
- dev->checkpt_next_block <= dev->internal_end_block &&
- blocksAvailable > 0) {
+ dev->checkpt_next_block <= dev->internal_end_block &&
+ blocks_avail > 0) {
- for (i = dev->checkpt_next_block; i <= dev->internal_end_block; i++) {
- yaffs_block_info_t *bi = yaffs_get_block_info(dev, i);
+ for (i = dev->checkpt_next_block; i <= dev->internal_end_block;
+ i++) {
+ struct yaffs_block_info *bi =
+ yaffs_get_block_info(dev, i);
if (bi->block_state == YAFFS_BLOCK_STATE_EMPTY) {
dev->checkpt_next_block = i + 1;
dev->checkpt_cur_block = i;
- T(YAFFS_TRACE_CHECKPOINT, (TSTR("allocating checkpt block %d"TENDSTR), i));
+ T(YAFFS_TRACE_CHECKPOINT,
+ (TSTR("allocating checkpt block %d" TENDSTR),
+ i));
return;
}
}
}
- T(YAFFS_TRACE_CHECKPOINT, (TSTR("out of checkpt blocks"TENDSTR)));
+ T(YAFFS_TRACE_CHECKPOINT, (TSTR("out of checkpt blocks" TENDSTR)));
dev->checkpt_next_block = -1;
dev->checkpt_cur_block = -1;
}
-static void yaffs2_checkpt_find_block(yaffs_dev_t *dev)
+static void yaffs2_checkpt_find_block(struct yaffs_dev *dev)
{
- int i;
- yaffs_ext_tags tags;
+ int i;
+ struct yaffs_ext_tags tags;
- T(YAFFS_TRACE_CHECKPOINT, (TSTR("find next checkpt block: start: blocks %d next %d" TENDSTR),
- dev->blocks_in_checkpt, dev->checkpt_next_block));
+ T(YAFFS_TRACE_CHECKPOINT,
+ (TSTR("find next checkpt block: start: blocks %d next %d" TENDSTR),
+ dev->blocks_in_checkpt, dev->checkpt_next_block));
if (dev->blocks_in_checkpt < dev->checkpt_max_blocks)
- for (i = dev->checkpt_next_block; i <= dev->internal_end_block; i++) {
+ for (i = dev->checkpt_next_block; i <= dev->internal_end_block;
+ i++) {
int chunk = i * dev->param.chunks_per_block;
- int realignedChunk = chunk - dev->chunk_offset;
+ int realigned_chunk = chunk - dev->chunk_offset;
- dev->param.read_chunk_tags_fn(dev, realignedChunk,
- NULL, &tags);
- T(YAFFS_TRACE_CHECKPOINT, (TSTR("find next checkpt block: search: block %d oid %d seq %d eccr %d" TENDSTR),
- i, tags.obj_id, tags.seq_number, tags.ecc_result));
+ dev->param.read_chunk_tags_fn(dev, realigned_chunk,
+ NULL, &tags);
+ T(YAFFS_TRACE_CHECKPOINT,
+ (TSTR
+ ("find next checkpt block: search: block %d oid %d seq %d eccr %d"
+ TENDSTR), i, tags.obj_id, tags.seq_number,
+ tags.ecc_result));
if (tags.seq_number == YAFFS_SEQUENCE_CHECKPOINT_DATA) {
/* Right kind of block */
dev->checkpt_next_block = tags.obj_id;
dev->checkpt_cur_block = i;
- dev->checkpt_block_list[dev->blocks_in_checkpt] = i;
+ dev->checkpt_block_list[dev->
+ blocks_in_checkpt] = i;
dev->blocks_in_checkpt++;
- T(YAFFS_TRACE_CHECKPOINT, (TSTR("found checkpt block %d"TENDSTR), i));
+ T(YAFFS_TRACE_CHECKPOINT,
+ (TSTR("found checkpt block %d" TENDSTR), i));
return;
}
}
- T(YAFFS_TRACE_CHECKPOINT, (TSTR("found no more checkpt blocks"TENDSTR)));
+ T(YAFFS_TRACE_CHECKPOINT,
+ (TSTR("found no more checkpt blocks" TENDSTR)));
dev->checkpt_next_block = -1;
dev->checkpt_cur_block = -1;
}
-
-int yaffs2_checkpt_open(yaffs_dev_t *dev, int forWriting)
+int yaffs2_checkpt_open(struct yaffs_dev *dev, int writing)
{
-
- dev->checkpt_open_write = forWriting;
+ dev->checkpt_open_write = writing;
/* Got the functions we need? */
if (!dev->param.write_chunk_tags_fn ||
- !dev->param.read_chunk_tags_fn ||
- !dev->param.erase_fn ||
- !dev->param.bad_block_fn)
+ !dev->param.read_chunk_tags_fn ||
+ !dev->param.erase_fn || !dev->param.bad_block_fn)
return 0;
- if (forWriting && !yaffs2_checkpt_space_ok(dev))
+ if (writing && !yaffs2_checkpt_space_ok(dev))
return 0;
if (!dev->checkpt_buffer)
- dev->checkpt_buffer = YMALLOC_DMA(dev->param.total_bytes_per_chunk);
+ dev->checkpt_buffer =
+ YMALLOC_DMA(dev->param.total_bytes_per_chunk);
if (!dev->checkpt_buffer)
return 0;
-
dev->checkpt_page_seq = 0;
dev->checkpt_byte_count = 0;
dev->checkpt_sum = 0;
dev->checkpt_next_block = dev->internal_start_block;
/* Erase all the blocks in the checkpoint area */
- if (forWriting) {
+ if (writing) {
memset(dev->checkpt_buffer, 0, dev->data_bytes_per_chunk);
dev->checkpt_byte_offs = 0;
return yaffs_checkpt_erase(dev);
/* A checkpoint block list of 1 checkpoint block per 16 block is (hopefully)
* going to be way more than we need */
dev->blocks_in_checkpt = 0;
- dev->checkpt_max_blocks = (dev->internal_end_block - dev->internal_start_block)/16 + 2;
- dev->checkpt_block_list = YMALLOC(sizeof(int) * dev->checkpt_max_blocks);
- if(!dev->checkpt_block_list)
+ dev->checkpt_max_blocks =
+ (dev->internal_end_block - dev->internal_start_block) / 16 +
+ 2;
+ dev->checkpt_block_list =
+ YMALLOC(sizeof(int) * dev->checkpt_max_blocks);
+ if (!dev->checkpt_block_list)
return 0;
for (i = 0; i < dev->checkpt_max_blocks; i++)
return 1;
}
-int yaffs2_get_checkpt_sum(yaffs_dev_t *dev, __u32 *sum)
+int yaffs2_get_checkpt_sum(struct yaffs_dev *dev, u32 * sum)
{
- __u32 compositeSum;
- compositeSum = (dev->checkpt_sum << 8) | (dev->checkpt_xor & 0xFF);
- *sum = compositeSum;
+ u32 composite_sum;
+ composite_sum = (dev->checkpt_sum << 8) | (dev->checkpt_xor & 0xFF);
+ *sum = composite_sum;
return 1;
}
-static int yaffs2_checkpt_flush_buffer(yaffs_dev_t *dev)
+static int yaffs2_checkpt_flush_buffer(struct yaffs_dev *dev)
{
int chunk;
- int realignedChunk;
+ int realigned_chunk;
- yaffs_ext_tags tags;
+ struct yaffs_ext_tags tags;
if (dev->checkpt_cur_block < 0) {
yaffs2_checkpt_find_erased_block(dev);
return 0;
tags.is_deleted = 0;
- tags.obj_id = dev->checkpt_next_block; /* Hint to next place to look */
+ tags.obj_id = dev->checkpt_next_block; /* Hint to next place to look */
tags.chunk_id = dev->checkpt_page_seq + 1;
- tags.seq_number = YAFFS_SEQUENCE_CHECKPOINT_DATA;
+ tags.seq_number = YAFFS_SEQUENCE_CHECKPOINT_DATA;
tags.n_bytes = dev->data_bytes_per_chunk;
if (dev->checkpt_cur_chunk == 0) {
/* First chunk we write for the block? Set block state to
checkpoint */
- yaffs_block_info_t *bi = yaffs_get_block_info(dev, dev->checkpt_cur_block);
+ struct yaffs_block_info *bi =
+ yaffs_get_block_info(dev, dev->checkpt_cur_block);
bi->block_state = YAFFS_BLOCK_STATE_CHECKPOINT;
dev->blocks_in_checkpt++;
}
- chunk = dev->checkpt_cur_block * dev->param.chunks_per_block + dev->checkpt_cur_chunk;
+ chunk =
+ dev->checkpt_cur_block * dev->param.chunks_per_block +
+ dev->checkpt_cur_chunk;
+ T(YAFFS_TRACE_CHECKPOINT,
+ (TSTR
+ ("checkpoint wite buffer nand %d(%d:%d) objid %d chId %d" TENDSTR),
+ chunk, dev->checkpt_cur_block, dev->checkpt_cur_chunk, tags.obj_id,
+ tags.chunk_id));
- T(YAFFS_TRACE_CHECKPOINT, (TSTR("checkpoint wite buffer nand %d(%d:%d) objid %d chId %d" TENDSTR),
- chunk, dev->checkpt_cur_block, dev->checkpt_cur_chunk, tags.obj_id, tags.chunk_id));
-
- realignedChunk = chunk - dev->chunk_offset;
+ realigned_chunk = chunk - dev->chunk_offset;
dev->n_page_writes++;
- dev->param.write_chunk_tags_fn(dev, realignedChunk,
- dev->checkpt_buffer, &tags);
+ dev->param.write_chunk_tags_fn(dev, realigned_chunk,
+ dev->checkpt_buffer, &tags);
dev->checkpt_byte_offs = 0;
dev->checkpt_page_seq++;
dev->checkpt_cur_chunk++;
return 1;
}
-
-int yaffs2_checkpt_wr(yaffs_dev_t *dev, const void *data, int n_bytes)
+int yaffs2_checkpt_wr(struct yaffs_dev *dev, const void *data, int n_bytes)
{
int i = 0;
int ok = 1;
-
- __u8 * dataBytes = (__u8 *)data;
-
-
+ u8 *data_bytes = (u8 *) data;
if (!dev->checkpt_buffer)
return 0;
return -1;
while (i < n_bytes && ok) {
- dev->checkpt_buffer[dev->checkpt_byte_offs] = *dataBytes;
- dev->checkpt_sum += *dataBytes;
- dev->checkpt_xor ^= *dataBytes;
+ dev->checkpt_buffer[dev->checkpt_byte_offs] = *data_bytes;
+ dev->checkpt_sum += *data_bytes;
+ dev->checkpt_xor ^= *data_bytes;
dev->checkpt_byte_offs++;
i++;
- dataBytes++;
+ data_bytes++;
dev->checkpt_byte_count++;
-
if (dev->checkpt_byte_offs < 0 ||
- dev->checkpt_byte_offs >= dev->data_bytes_per_chunk)
+ dev->checkpt_byte_offs >= dev->data_bytes_per_chunk)
ok = yaffs2_checkpt_flush_buffer(dev);
}
return i;
}
-int yaffs2_checkpt_rd(yaffs_dev_t *dev, void *data, int n_bytes)
+int yaffs2_checkpt_rd(struct yaffs_dev *dev, void *data, int n_bytes)
{
int i = 0;
int ok = 1;
- yaffs_ext_tags tags;
-
+ struct yaffs_ext_tags tags;
int chunk;
- int realignedChunk;
+ int realigned_chunk;
- __u8 *dataBytes = (__u8 *)data;
+ u8 *data_bytes = (u8 *) data;
if (!dev->checkpt_buffer)
return 0;
while (i < n_bytes && ok) {
-
if (dev->checkpt_byte_offs < 0 ||
- dev->checkpt_byte_offs >= dev->data_bytes_per_chunk) {
+ dev->checkpt_byte_offs >= dev->data_bytes_per_chunk) {
if (dev->checkpt_cur_block < 0) {
yaffs2_checkpt_find_block(dev);
ok = 0;
else {
chunk = dev->checkpt_cur_block *
- dev->param.chunks_per_block +
- dev->checkpt_cur_chunk;
+ dev->param.chunks_per_block +
+ dev->checkpt_cur_chunk;
+
+ realigned_chunk = chunk - dev->chunk_offset;
- realignedChunk = chunk - dev->chunk_offset;
-
dev->n_page_reads++;
/* read in the next chunk */
- /* printf("read checkpoint page %d\n",dev->checkpointPage); */
dev->param.read_chunk_tags_fn(dev,
- realignedChunk,
- dev->checkpt_buffer,
- &tags);
-
- if (tags.chunk_id != (dev->checkpt_page_seq + 1) ||
- tags.ecc_result > YAFFS_ECC_RESULT_FIXED ||
- tags.seq_number != YAFFS_SEQUENCE_CHECKPOINT_DATA)
+ realigned_chunk,
+ dev->
+ checkpt_buffer,
+ &tags);
+
+ if (tags.chunk_id != (dev->checkpt_page_seq + 1)
+ || tags.ecc_result > YAFFS_ECC_RESULT_FIXED
+ || tags.seq_number !=
+ YAFFS_SEQUENCE_CHECKPOINT_DATA)
ok = 0;
dev->checkpt_byte_offs = 0;
dev->checkpt_page_seq++;
dev->checkpt_cur_chunk++;
- if (dev->checkpt_cur_chunk >= dev->param.chunks_per_block)
+ if (dev->checkpt_cur_chunk >=
+ dev->param.chunks_per_block)
dev->checkpt_cur_block = -1;
}
}
if (ok) {
- *dataBytes = dev->checkpt_buffer[dev->checkpt_byte_offs];
- dev->checkpt_sum += *dataBytes;
- dev->checkpt_xor ^= *dataBytes;
+ *data_bytes =
+ dev->checkpt_buffer[dev->checkpt_byte_offs];
+ dev->checkpt_sum += *data_bytes;
+ dev->checkpt_xor ^= *data_bytes;
dev->checkpt_byte_offs++;
i++;
- dataBytes++;
+ data_bytes++;
dev->checkpt_byte_count++;
}
}
- return i;
+ return i;
}
-int yaffs_checkpt_close(yaffs_dev_t *dev)
+int yaffs_checkpt_close(struct yaffs_dev *dev)
{
if (dev->checkpt_open_write) {
if (dev->checkpt_byte_offs != 0)
yaffs2_checkpt_flush_buffer(dev);
- } else if(dev->checkpt_block_list){
+ } else if (dev->checkpt_block_list) {
int i;
- for (i = 0; i < dev->blocks_in_checkpt && dev->checkpt_block_list[i] >= 0; i++) {
+ for (i = 0;
+ i < dev->blocks_in_checkpt
+ && dev->checkpt_block_list[i] >= 0; i++) {
int blk = dev->checkpt_block_list[i];
- yaffs_block_info_t *bi = NULL;
- if( dev->internal_start_block <= blk && blk <= dev->internal_end_block)
+ struct yaffs_block_info *bi = NULL;
+ if (dev->internal_start_block <= blk
+ && blk <= dev->internal_end_block)
bi = yaffs_get_block_info(dev, blk);
if (bi && bi->block_state == YAFFS_BLOCK_STATE_EMPTY)
bi->block_state = YAFFS_BLOCK_STATE_CHECKPOINT;
dev->checkpt_block_list = NULL;
}
- dev->n_free_chunks -= dev->blocks_in_checkpt * dev->param.chunks_per_block;
+ dev->n_free_chunks -=
+ dev->blocks_in_checkpt * dev->param.chunks_per_block;
dev->n_erased_blocks -= dev->blocks_in_checkpt;
-
T(YAFFS_TRACE_CHECKPOINT, (TSTR("checkpoint byte count %d" TENDSTR),
- dev->checkpt_byte_count));
+ dev->checkpt_byte_count));
if (dev->checkpt_buffer) {
/* free the buffer */
YFREE(dev->checkpt_buffer);
dev->checkpt_buffer = NULL;
return 1;
- } else
+ } else {
return 0;
+ }
}
-int yaffs2_checkpt_invalidate_stream(yaffs_dev_t *dev)
+int yaffs2_checkpt_invalidate_stream(struct yaffs_dev *dev)
{
/* Erase the checkpoint data */
- T(YAFFS_TRACE_CHECKPOINT, (TSTR("checkpoint invalidate of %d blocks"TENDSTR),
- dev->blocks_in_checkpt));
+ T(YAFFS_TRACE_CHECKPOINT,
+ (TSTR("checkpoint invalidate of %d blocks" TENDSTR),
+ dev->blocks_in_checkpt));
return yaffs_checkpt_erase(dev);
}
-
-
-
projects / yaffs2.git / blobdiff