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Searched refs:readpos (Results 1 – 8 of 8) sorted by relevance

/linux/drivers/media/pci/cx18/
H A Dcx18-fileops.c196 if (mdl->readpos != mdl->bytesused) in cx18_get_mdl()
252 buf->readpos = 0; in cx18_setup_sliced_vbi_mdl()
256 mdl->readpos = 0; in cx18_setup_sliced_vbi_mdl()
263 size_t len = buf->bytesused - buf->readpos; in cx18_copy_buf_to_user()
289 const char *start = buf->buf + buf->readpos; in cx18_copy_buf_to_user()
351 if (copy_to_user(ubuf, (u8 *)buf->buf + buf->readpos, len)) { in cx18_copy_buf_to_user()
356 buf->readpos += len; in cx18_copy_buf_to_user()
380 mdl->readpos = mdl->bytesused; in cx18_copy_mdl_to_user()
386 if (mdl->curr_buf->readpos >= mdl->curr_buf->bytesused) in cx18_copy_mdl_to_user()
393 mdl->readpos += rc; in cx18_copy_mdl_to_user()
[all …]
H A Dcx18-queue.c49 mdl->readpos = 0; in _cx18_enqueue()
66 q->bytesused += mdl->bytesused - mdl->readpos; in _cx18_enqueue()
81 q->bytesused -= mdl->bytesused - mdl->readpos; in cx18_dequeue()
97 buf->readpos = 0; in _cx18_mdl_update_bufs_for_cpu()
118 buf->readpos = 0; in cx18_mdl_update_bufs_for_cpu()
210 mdl->readpos = 0; in cx18_queue_flush()
250 buf->readpos = 0; in cx18_unload_queues()
H A Dcx18-ioctl.c728 remaining = buf->bytesused - buf->readpos; in _cx18_process_idx_data()
731 e_buf = (struct cx18_enc_idx_entry *) &buf->buf[buf->readpos]; in _cx18_process_idx_data()
761 buf->readpos += consumed; in _cx18_process_idx_data()
781 mdl->readpos = mdl->bytesused; in cx18_process_idx_data()
788 if (mdl->curr_buf->readpos >= mdl->curr_buf->bytesused) in cx18_process_idx_data()
791 mdl->readpos += _cx18_process_idx_data(mdl->curr_buf, idx); in cx18_process_idx_data()
795 mdl->curr_buf->readpos < mdl->curr_buf->bytesused || in cx18_process_idx_data()
796 mdl->readpos >= mdl->bytesused) in cx18_process_idx_data()
833 if (mdl->readpos < mdl->bytesused) { in cx18_g_enc_index()
/linux/drivers/media/pci/ivtv/
H A Divtv-queue.c47 buf->readpos = 0; in ivtv_enqueue()
55 q->bytesused += buf->bytesused - buf->readpos; in ivtv_enqueue()
70 q->bytesused -= buf->bytesused - buf->readpos; in ivtv_dequeue()
84 from->bytesused -= buf->bytesused - buf->readpos; in ivtv_queue_move_buf()
87 buf->bytesused = buf->readpos = buf->b_flags = buf->dma_xfer_cnt = 0; in ivtv_queue_move_buf()
90 to->bytesused += buf->bytesused - buf->readpos; in ivtv_queue_move_buf()
145 steal->bytesused -= buf->bytesused - buf->readpos; in ivtv_queue_move()
146 buf->bytesused = buf->readpos = buf->b_flags = buf->dma_xfer_cnt = 0; in ivtv_queue_move()
H A Divtv-fileops.c238 if (buf->readpos != buf->bytesused) { in ivtv_get_buffer()
293 itv->vbi.sliced_mpeg_buf.readpos = 0; in ivtv_setup_sliced_vbi_buf()
300 size_t len = buf->bytesused - buf->readpos; in ivtv_copy_buf_to_user()
305 const char *start = buf->buf + buf->readpos; in ivtv_copy_buf_to_user()
343 if (copy_to_user(ubuf, (u8 *)buf->buf + buf->readpos, len)) { in ivtv_copy_buf_to_user()
350 buf->readpos += len; in ivtv_copy_buf_to_user()
395 ivtv_enqueue(s, buf, (buf->readpos == buf->bytesused) ? &s->q_free : &s->q_io); in ivtv_read()
397 else if (buf->readpos == buf->bytesused) { in ivtv_read()
/linux/drivers/char/xillybus/
H A Dxillyusb.c80 unsigned int readpos; member
284 unsigned int readpos = fifo->readpos; in fifo_read() local
302 unsigned int nrail = fifo->bufsize - readpos; in fifo_read()
310 fifo->readpos = readpos; in fifo_read()
319 rc = (*copier)(data + done, fifo->mem[readbuf] + readpos, n); in fifo_read()
327 readpos += n; in fifo_read()
330 if (readpos == fifo->bufsize) { in fifo_read()
331 readpos = 0; in fifo_read()
410 fifo->readpos = 0; in fifo_init()
/linux/drivers/md/
H A Draid5.c6399 sector_t writepos, readpos, safepos; in reshape_request() local
6443 readpos = conf->reshape_progress; in reshape_request()
6444 sector_div(readpos, data_disks); in reshape_request()
6452 readpos += reshape_sectors; in reshape_request()
6460 readpos -= min_t(sector_t, reshape_sectors, readpos); in reshape_request()
6505 readpos += -conf->min_offset_diff; in reshape_request()
6510 ? (safepos > writepos && readpos < writepos) in reshape_request()
6511 : (safepos < writepos && readpos > writepos)) || in reshape_request()
/linux/kernel/trace/
H A Dtrace.c1208 if (trace_seq_used(s) <= s->readpos) in trace_seq_to_buffer()
1211 len = trace_seq_used(s) - s->readpos; in trace_seq_to_buffer()
1214 memcpy(buf, s->buffer + s->readpos, cnt); in trace_seq_to_buffer()
1216 s->readpos += cnt; in trace_seq_to_buffer()
5484 if (iter->seq.readpos >= trace_seq_used(&iter->seq)) in tracing_read_pipe()