V4L/DVB (9801): cx18: Allow more than 63 capture buffers in rotation per stream

cx18: Allow more than 63 capture buffers in rotation per stream.  Implement
q_busy to hold buffers the firmware has for use.  q_free holds truly unused
buffers in a pool.  New buffers are given to the firmware as soon as the
firmware returns one, if there are any to give to the firmware.

Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 1 insertions, 10 deletions

diff --git a/drivers/media/video/cx18/cx18-mailbox.c b/drivers/media/video/cx18/cx18-mailbox.c
index b013e817926a..9d8220539be8 100644
--- a/drivers/media/video/cx18/cx18-mailbox.c
+++ b/drivers/media/video/cx18/cx18-mailbox.c
@@ -189,16 +189,7 @@ static void epu_dma_done(struct cx18 *cx, struct cx18_epu_work_order *order)
                         dvb_dmx_swfilter(&s->dvb.demux, buf->buf,
                                          buf->bytesused);
 
-                        cx18_buf_sync_for_device(s, buf);
-                        cx18_enqueue(s, buf, &s->q_free);
-
-                        if (s->handle != CX18_INVALID_TASK_HANDLE &&
-                            test_bit(CX18_F_S_STREAMING, &s->s_flags))
-                                cx18_vapi(cx,
-                                       CX18_CPU_DE_SET_MDL, 5, s->handle,
-                                       (void __iomem *)
-                                       &cx->scb->cpu_mdl[buf->id] - cx->enc_mem,
-                                       1, buf->id, s->buf_size);
+                        cx18_stream_put_buf_fw(s, buf);
                 } else
                         set_bit(CX18_F_B_NEED_BUF_SWAP, &buf->b_flags);
         }