From 837939deebeb0201189d44fcc83ee9ca3c483731 Mon Sep 17 00:00:00 2001 From: "Lad, Prabhakar" Date: Fri, 16 May 2014 10:33:38 -0300 Subject: [media] media: davinci: vpif_capture: improve vpif_buffer_queue_setup() function this patch sets the sizes[0] of plane according to the fmt passed or which is being set in the channel, in both MMAP and USERPTR buffer type. This patch also move the calculation of offests(vpif_calculate_offsets()) to queue_setup() callback as after queue_setup() callback the application is no longer allowed to change format, and prepares to removal of config_params. Signed-off-by: Lad, Prabhakar Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/platform/davinci/vpif_capture.c | 40 ++++++--------------------- 1 file changed, 8 insertions(+), 32 deletions(-) diff --git a/drivers/media/platform/davinci/vpif_capture.c b/drivers/media/platform/davinci/vpif_capture.c index 025eb24..c77c176 100644 --- a/drivers/media/platform/davinci/vpif_capture.c +++ b/drivers/media/platform/davinci/vpif_capture.c @@ -134,45 +134,24 @@ static int vpif_buffer_queue_setup(struct vb2_queue *vq, { struct channel_obj *ch = vb2_get_drv_priv(vq); struct common_obj *common; - unsigned long size; common = &ch->common[VPIF_VIDEO_INDEX]; vpif_dbg(2, debug, "vpif_buffer_setup\n"); - /* If memory type is not mmap, return */ - if (V4L2_MEMORY_MMAP == common->memory) { - /* 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 * *nbuffers > - (config_params.video_limit[0] - + config_params.video_limit[1])) - (*nbuffers)--; - } else { - if (config_params.video_limit[ch->channel_id]) - while (size * *nbuffers > - config_params.video_limit[ch->channel_id]) - (*nbuffers)--; - } - - } else { - size = common->fmt.fmt.pix.sizeimage; - } + if (fmt && fmt->fmt.pix.sizeimage < common->fmt.fmt.pix.sizeimage) + return -EINVAL; - if (*nbuffers < config_params.min_numbuffers) - *nbuffers = config_params.min_numbuffers; + if (vq->num_buffers + *nbuffers < 3) + *nbuffers = 3 - vq->num_buffers; *nplanes = 1; - sizes[0] = size; + sizes[0] = fmt ? fmt->fmt.pix.sizeimage : common->fmt.fmt.pix.sizeimage; alloc_ctxs[0] = common->alloc_ctx; + /* Calculate the offset for Y and C data in the buffer */ + vpif_calculate_offsets(ch); + return 0; } @@ -214,9 +193,6 @@ static int vpif_start_streaming(struct vb2_queue *vq, unsigned int count) ch->field_id = 0; common->started = 1; - /* Calculate the offset for Y and C data in the buffer */ - vpif_calculate_offsets(ch); - if ((vpif->std_info.frm_fmt && ((common->fmt.fmt.pix.field != V4L2_FIELD_NONE) && (common->fmt.fmt.pix.field != V4L2_FIELD_ANY))) || -- cgit v1.1