int ipanic_write_log_buf(struct mtd_info *mtd, unsigned int off, struct ipanic_log_index start, struct ipanic_log_index end)
{
struct mtd_ipanic_data *ctx = &mtd_drv_ctx;
int saved_oip;
int rc, rc2;
unsigned int last_chunk = 0, copy_count = 0;
#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 5, 0)
int log_copy_start = start.value;
int log_copy_end = end.value;
if (log_copy_start == log_copy_end) {
int rc3 = mtd_ipanic_block_write(ctx, off, 5);
return rc3;
}
#else
struct kmsg_dumper dumper;
dumper.active = true;
dumper.cur_idx = start.idx;
dumper.cur_seq = start.seq;
dumper.next_idx = end.idx;
dumper.next_seq = end.seq;
if (dumper.cur_idx == dumper.next_idx) {
int rc3 = mtd_ipanic_block_write(ctx, off, 5);
return rc3;
}
#endif
while (!last_chunk) {
saved_oip = oops_in_progress;
oops_in_progress = 1;
#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 5, 0)
rc = log_buf_copy2(ctx->bounce, mtd->writesize, log_copy_start, log_copy_end);
BUG_ON(rc < 0);
log_copy_start += rc;
#else
rc = ipanic_kmsg_dump3(&dumper, ctx->bounce, PAGE_SIZE);
BUG_ON(rc < 0);
#endif
copy_count += rc;
if (rc != mtd->writesize)
last_chunk = rc;
oops_in_progress = saved_oip;
if (rc <= 0)
break;
rc2 = mtd_ipanic_block_write(ctx, off, rc);
if (rc2 <= 0) {
xlog_printk(ANDROID_LOG_ERROR, IPANIC_LOG_TAG,
"aee-ipanic: Flash write failed (%d)\n", rc2);
return rc2;
}
off += rc2;
}
return copy_count;
}
static int ipanic_write_userspace(struct mtd_ipanic_data *ctx, unsigned int off)
{
int saved_oip, rc, rc2;
unsigned int copy_count = 0;
memset(ctx->bounce, 0, PAGE_SIZE);
DumpNativeInfo();
while (1) {
saved_oip = oops_in_progress;
oops_in_progress = 1;
rc = panic_dump_user_info(ctx->bounce, ctx->mtd->writesize, copy_count);
oops_in_progress = saved_oip;
if (rc <= 0)
break;
copy_count += rc;
rc2 = mtd_ipanic_block_write(ctx, off, rc);
if (rc2 <= 0) {
xlog_printk(ANDROID_LOG_ERROR, IPANIC_LOG_TAG,
"%s: Flash write failed (%d)\n", __func__, rc2);
return rc2;
}
off += rc2;
}
xlog_printk(ANDROID_LOG_DEBUG, IPANIC_LOG_TAG, "%s: count %d, strlen(NativeInfo):%d, off:%d\n", __func__, copy_count, strlen(NativeInfo), off);
return copy_count;
}
static int ipanic_write_android_buf(struct mtd_info *mtd, unsigned int off, int type)
{
struct mtd_ipanic_data *ctx = &mtd_drv_ctx;
int saved_oip;
int rc, rc2;
unsigned int last_chunk = 0, copy_count = 0;
while (!last_chunk) {
saved_oip = oops_in_progress;
oops_in_progress = 1;
rc = panic_dump_android_log(ctx->bounce, mtd->writesize, type);
BUG_ON(rc < 0);
copy_count += rc;
if (rc == 0)
last_chunk = rc;
oops_in_progress = saved_oip;
if (rc <= 0)
break;
rc2 = mtd_ipanic_block_write(ctx, off, rc);
if (rc2 <= 0) {
xlog_printk(ANDROID_LOG_ERROR, IPANIC_LOG_TAG,
"aee-ipanic: Flash write failed (%d)\n", rc2);
return rc2;
}
off += rc2;
}
//xlog_printk(ANDROID_LOG_DEBUG, IPANIC_LOG_TAG, "dump droid log type %d, count %d\n", type, copy_count);
return copy_count;
}
/*
* Writes the contents of the console to the specified offset in flash.
* Returns number of bytes written
*/
static int ipanic_write_log_buf(struct mtd_info *mtd, unsigned int off, int log_copy_start, int log_copy_end)
{
struct mtd_ipanic_data *ctx = &mtd_drv_ctx;
int saved_oip;
int rc, rc2;
unsigned int last_chunk = 0, copy_count = 0;
while (!last_chunk) {
saved_oip = oops_in_progress;
oops_in_progress = 1;
rc = log_buf_copy2(ctx->bounce, mtd->writesize, log_copy_start, log_copy_end);
BUG_ON(rc < 0);
log_copy_start += rc;
copy_count += rc;
if (rc != mtd->writesize)
last_chunk = rc;
oops_in_progress = saved_oip;
if (rc <= 0)
break;
rc2 = mtd_ipanic_block_write(ctx, off, rc);
if (rc2 <= 0) {
xlog_printk(ANDROID_LOG_ERROR, IPANIC_LOG_TAG,
"aee-ipanic: Flash write failed (%d)\n", rc2);
return rc2;
}
off += rc2;
}
return copy_count;
}
static int mtd_ipanic_write_oops_header(struct mtd_info *mtd, unsigned int off)
{
int wlen = 0, rc;
struct mtd_ipanic_data *ctx = &mtd_drv_ctx;
u8 *raw_oops_header = (u8 *)&oops_header;
while (wlen < sizeof(struct ipanic_oops_header)) {
int writesize = sizeof(struct ipanic_oops_header) - wlen;
if (writesize > mtd->writesize)
writesize = mtd->writesize;
memcpy(ctx->bounce, raw_oops_header + wlen, writesize);
rc = mtd_ipanic_block_write(ctx, off + wlen, writesize);
if (rc < 0) {
return rc;
}
wlen += writesize;
}
return wlen;
}
