ssize_t esparser_write(struct file *file,
struct stream_buf_s *stbuf,
const char __user *buf, size_t count)
{
s32 r;
u32 len = count;
if (buf == NULL || count == 0) {
return -EINVAL;
}
if (stbuf_space(stbuf) < count) {
if (file->f_flags & O_NONBLOCK) {
return -EAGAIN;
}
len = min(stbuf_size(stbuf) / 8, len);
if (stbuf_space(stbuf) < len) {
r = stbuf_wait_space(stbuf, len);
if (r < 0) {
return r;
}
}
}
mutex_lock(&esparser_mutex);
r = _esparser_write(buf, len, stbuf->type);
mutex_unlock(&esparser_mutex);
return r;
}
ssize_t esparser_write(struct file *file,
struct stream_buf_s *stbuf,
const char __user *buf, size_t count)
{
s32 r;
u32 len = count;
if (buf == NULL || count == 0) {
return -EINVAL;
}
if (stbuf->type!=BUF_TYPE_SUBTITLE && /*subtitle have no level to check,*/
stbuf_space(stbuf) < count) {
if (file->f_flags & O_NONBLOCK) {
len = stbuf_space(stbuf) ;
if(len<256)//<1k.do eagain,
return -EAGAIN;
}else{
len = min(stbuf_canusesize(stbuf) / 8, len);
if (stbuf_space(stbuf) < len) {
r = stbuf_wait_space(stbuf, len);
if (r < 0) {
return r;
}
}
}
}
len = min(len, count);
mutex_lock(&esparser_mutex);
r = _esparser_write(buf, len, stbuf->type);
mutex_unlock(&esparser_mutex);
return r;
}
ssize_t drm_write(struct file *file,
struct stream_buf_s *stbuf,
const char __user *buf, size_t count)
{
s32 r;
u32 len ;
u32 realcount,totalcount;
u32 re_count = count;
u32 havewritebytes =0;
u32 leftcount = 0;
drminfo_t tmpmm;
drminfo_t *drm=&tmpmm;
u32 res=0;
int isphybuf=0;
if (buf == NULL || count == 0) {
return -EINVAL;
}
res = copy_from_user(drm, buf, sizeof(drminfo_t));
if (res) {
printk("drm kmalloc failed res[%d]\n",res);
return -EFAULT;
}
if (drm->drm_flag == TYPE_DRMINFO && (drm->drm_hasesdata == 0)) {
realcount = drm->drm_pktsize; //buf only has drminfo not have esdata;
buf = (char *)drm->drm_phy;
isphybuf =1;
//DRM_PRNT("drm_get_rawdata onlydrminfo drm->drm_hasesdata[0x%x] stbuf->type %d buf[0x%x]\n",drm->drm_hasesdata,stbuf->type,buf);
} else if (drm->drm_hasesdata == 1) {//buf is drminfo+es;
realcount = drm->drm_pktsize;
buf = buf + sizeof(drminfo_t);
isphybuf =0;
//DRM_PRNT("drm_get_rawdata drminfo+es drm->drm_hasesdata[0x%x] stbuf->type %d\n",drm->drm_hasesdata,stbuf->type);
} else {//buf is hwhead;
realcount = count;
isphybuf =0;
//DRM_PRNT("drm_get_rawdata drm->drm_hasesdata[0x%x] len[%d] count[%d] realcout[%d]\n",drm->drm_hasesdata,len,count,realcount);
}
len = realcount ;
count = realcount;
totalcount = realcount;
while (len > 0) {
if (stbuf->type!=BUF_TYPE_SUBTITLE && stbuf_space(stbuf) < count) {
len = min(stbuf_canusesize(stbuf) / 8, len);
if (stbuf_space(stbuf) < len) {
r = stbuf_wait_space(stbuf, len);
if ((r < leftcount) && (leftcount > 0)) { // write part data , not allow return ;
continue;
}else if ((r < 0)&&(leftcount==0)){//buf is full;
return -EAGAIN;
}
}
}
len = min(len, count);
mutex_lock(&esparser_mutex);
r = _esparser_write(buf,len,stbuf->type,isphybuf);
if (r < 0){
printk("drm_write _esparser_write failed [%d]\n",r);
return r;
}
havewritebytes += r;
leftcount = totalcount - havewritebytes;
if (havewritebytes == totalcount){
mutex_unlock(&esparser_mutex);
break;//write ok;
}else if ((len > 0 )&& (havewritebytes < totalcount)){
DRM_PRNT("writeagain havewritebytes[%d] wantwrite[%d] totalcount[%d] realcount[%d] \n",
havewritebytes,len,totalcount,realcount);
len = len-r;//write again;
buf=buf+r;
}else{
printk("###else havewritebytes[%d] wantwrite[%d] totalcount[%d] realcount[%d]\n",
havewritebytes,len,totalcount,realcount);
}
mutex_unlock(&esparser_mutex);
}
return re_count;
}
