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authorAndy Walls <awalls@radix.net>2008-11-05 00:49:14 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2008-11-11 08:11:33 -0200
commit1d6782bda5c1fb2bca44af50647b45427d8ef4ec (patch)
tree11cc68f4410ca4850ff3d874900f628ed9326064 /drivers/media/video/cx18/cx18-dvb.c
parentc9ff1b689a5d605640f098afc37d6102ecef9876 (diff)
V4L/DVB (9516): cx18: Move DVB buffer transfer handling from irq handler to work_queue
cx18: Move DVB buffer transfer handling from irq handler to work_queue thread. In order to properly lock the epu2cpu mailbox for driver to CX23418 commands, the DVB/TS buffer handling needs to be moved from the IRQ handler and IRQ context to a work queue. This work_queue implmentation is strikingly similar to the ivtv implementation - for better or worse. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/cx18/cx18-dvb.c')
-rw-r--r--drivers/media/video/cx18/cx18-dvb.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/media/video/cx18/cx18-dvb.c b/drivers/media/video/cx18/cx18-dvb.c
index afc694e7bdb..4542e2e5e3d 100644
--- a/drivers/media/video/cx18/cx18-dvb.c
+++ b/drivers/media/video/cx18/cx18-dvb.c
@@ -23,6 +23,8 @@
#include "cx18-dvb.h"
#include "cx18-io.h"
#include "cx18-streams.h"
+#include "cx18-queue.h"
+#include "cx18-scb.h"
#include "cx18-cards.h"
#include "s5h1409.h"
#include "mxl5005s.h"
@@ -300,3 +302,24 @@ static int dvb_register(struct cx18_stream *stream)
return ret;
}
+
+void cx18_dvb_work_handler(struct cx18 *cx)
+{
+ struct cx18_buffer *buf;
+ struct cx18_stream *s = &cx->streams[CX18_ENC_STREAM_TYPE_TS];
+
+ while ((buf = cx18_dequeue(s, &s->q_full)) != NULL) {
+ if (s->dvb.enabled)
+ dvb_dmx_swfilter(&s->dvb.demux, buf->buf,
+ buf->bytesused);
+
+ cx18_enqueue(s, buf, &s->q_free);
+ cx18_buf_sync_for_device(s, buf);
+ if (s->handle == CX18_INVALID_TASK_HANDLE) /* FIXME: improve */
+ continue;
+
+ 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);
+ }
+}