diff options
Diffstat (limited to 'drivers/media/video/davinci/vpif_capture.c')
| -rw-r--r-- | drivers/media/video/davinci/vpif_capture.c | 39 |
1 files changed, 37 insertions, 2 deletions
diff --git a/drivers/media/video/davinci/vpif_capture.c b/drivers/media/video/davinci/vpif_capture.c index bce31ea55dc4..d126fb6d74b6 100644 --- a/drivers/media/video/davinci/vpif_capture.c +++ b/drivers/media/video/davinci/vpif_capture.c @@ -217,6 +217,23 @@ static int vpif_buffer_setup(struct videobuf_queue *q, unsigned int *count, /* Calculate the size of the buffer */ *size = config_params.channel_bufsize[ch->channel_id]; + /* + * Checking if the buffer size exceeds the available buffer + * ycmux_mode = 0 means 1 channel mode HD and + * ycmux_mode = 1 means 2 channels mode SD + */ + if (ch->vpifparams.std_info.ycmux_mode == 0) { + if (config_params.video_limit[ch->channel_id]) + while (*size * *count > (config_params.video_limit[0] + + config_params.video_limit[1])) + (*count)--; + } else { + if (config_params.video_limit[ch->channel_id]) + while (*size * *count > + config_params.video_limit[ch->channel_id]) + (*count)--; + } + if (*count < config_params.min_numbuffers) *count = config_params.min_numbuffers; return 0; @@ -890,7 +907,7 @@ static int vpif_reqbufs(struct file *file, void *priv, } } - if (V4L2_BUF_TYPE_VIDEO_CAPTURE != reqbuf->type) + if (V4L2_BUF_TYPE_VIDEO_CAPTURE != reqbuf->type || !vpif_dev) return -EINVAL; index = VPIF_VIDEO_INDEX; @@ -902,7 +919,7 @@ static int vpif_reqbufs(struct file *file, void *priv, /* Initialize videobuf queue as per the buffer type */ videobuf_queue_dma_contig_init(&common->buffer_queue, - &video_qops, NULL, + &video_qops, vpif_dev, &common->irqlock, reqbuf->type, common->fmt.fmt.pix.field, @@ -2171,6 +2188,7 @@ static __init int vpif_probe(struct platform_device *pdev) struct video_device *vfd; struct resource *res; int subdev_count; + size_t size; vpif_dev = &pdev->dev; @@ -2225,6 +2243,23 @@ static __init int vpif_probe(struct platform_device *pdev) ch->video_dev = vfd; } + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (res) { + size = resource_size(res); + /* The resources are divided into two equal memory and when we + * have HD output we can add them together + */ + for (j = 0; j < VPIF_CAPTURE_MAX_DEVICES; j++) { + ch = vpif_obj.dev[j]; + ch->channel_id = j; + /* only enabled if second resource exists */ + config_params.video_limit[ch->channel_id] = 0; + if (size) + config_params.video_limit[ch->channel_id] = + size/2; + } + } + for (j = 0; j < VPIF_CAPTURE_MAX_DEVICES; j++) { ch = vpif_obj.dev[j]; ch->channel_id = j; |