1 files changed, 33 insertions, 4 deletions

diff --git a/drivers/media/video/ivtv/ivtv-streams.c b/drivers/media/video/ivtv/ivtv-streams.c
index de4288cc1889..55df4190c28d 100644
--- a/drivers/media/video/ivtv/ivtv-streams.c
+++ b/drivers/media/video/ivtv/ivtv-streams.c
@@ -42,6 +42,7 @@
 #include "ivtv-yuv.h"
 #include "ivtv-cards.h"
 #include "ivtv-streams.h"
+#include "ivtv-firmware.h"
 #include <media/v4l2-event.h>
 
 static const struct v4l2_file_operations ivtv_v4l2_enc_fops = {
@@ -618,12 +619,17 @@ static int ivtv_setup_v4l2_decode_stream(struct ivtv_stream *s)
 	struct ivtv *itv = s->itv;
 	struct cx2341x_mpeg_params *p = &itv->params;
 	int datatype;
+	u16 width;
+	u16 height;
 
 	if (s->vdev == NULL)
 		return -EINVAL;
 
 	IVTV_DEBUG_INFO("Setting some initial decoder settings\n");
 
+	width = p->width;
+	height = p->height;
+
 	/* set audio mode to left/stereo  for dual/stereo mode. */
 	ivtv_vapi(itv, CX2341X_DEC_SET_AUDIO_MODE, 2, itv->audio_bilingual_mode, itv->audio_stereo_mode);
 
@@ -646,7 +652,14 @@ static int ivtv_setup_v4l2_decode_stream(struct ivtv_stream *s)
 	   2 = yuv_from_host */
 	switch (s->type) {
 	case IVTV_DEC_STREAM_TYPE_YUV:
-		datatype = itv->output_mode == OUT_PASSTHROUGH ? 1 : 2;
+		if (itv->output_mode == OUT_PASSTHROUGH) {
+			datatype = 1;
+		} else {
+			/* Fake size to avoid switching video standard */
+			datatype = 2;
+			width = 720;
+			height = itv->is_out_50hz ? 576 : 480;
+		}
 		IVTV_DEBUG_INFO("Setup DEC YUV Stream data[0] = %d\n", datatype);
 		break;
 	case IVTV_DEC_STREAM_TYPE_MPG:
@@ -655,15 +668,21 @@ static int ivtv_setup_v4l2_decode_stream(struct ivtv_stream *s)
 		break;
 	}
 	if (ivtv_vapi(itv, CX2341X_DEC_SET_DECODER_SOURCE, 4, datatype,
-			p->width, p->height, p->audio_properties)) {
+			width, height, p->audio_properties)) {
 		IVTV_DEBUG_WARN("Couldn't initialize decoder source\n");
 	}
-	return 0;
+
+	/* Decoder sometimes dies here, so wait a moment */
+	ivtv_msleep_timeout(10, 0);
+
+	/* Known failure point for firmware, so check */
+	return ivtv_firmware_check(itv, "ivtv_setup_v4l2_decode_stream");
 }
 
 int ivtv_start_v4l2_decode_stream(struct ivtv_stream *s, int gop_offset)
 {
 	struct ivtv *itv = s->itv;
+	int rc;
 
 	if (s->vdev == NULL)
 		return -EINVAL;
@@ -673,7 +692,11 @@ int ivtv_start_v4l2_decode_stream(struct ivtv_stream *s, int gop_offset)
 
 	IVTV_DEBUG_INFO("Starting decode stream %s (gop_offset %d)\n", s->name, gop_offset);
 
-	ivtv_setup_v4l2_decode_stream(s);
+	rc = ivtv_setup_v4l2_decode_stream(s);
+	if (rc < 0) {
+		clear_bit(IVTV_F_S_STREAMING, &s->s_flags);
+		return rc;
+	}
 
 	/* set dma size to 65536 bytes */
 	ivtv_vapi(itv, CX2341X_DEC_SET_DMA_BLOCK_SIZE, 1, 65536);
@@ -697,6 +720,9 @@ int ivtv_start_v4l2_decode_stream(struct ivtv_stream *s, int gop_offset)
 	/* start playback */
 	ivtv_vapi(itv, CX2341X_DEC_START_PLAYBACK, 2, gop_offset, 0);
 
+	/* Let things settle before we actually start */
+	ivtv_msleep_timeout(10, 0);
+
 	/* Clear the following Interrupt mask bits for decoding */
 	ivtv_clear_irq_mask(itv, IVTV_IRQ_MASK_DECODE);
 	IVTV_DEBUG_IRQ("IRQ Mask is now: 0x%08x\n", itv->irqmask);
@@ -893,6 +919,9 @@ int ivtv_stop_v4l2_decode_stream(struct ivtv_stream *s, int flags, u64 pts)
 	clear_bit(IVTV_F_S_STREAMING, &s->s_flags);
 	ivtv_flush_queues(s);
 
+	/* decoder needs time to settle */
+	ivtv_msleep_timeout(40, 0);
+
 	/* decrement decoding */
 	atomic_dec(&itv->decoding);