diff options
author | Mats Randgaard <mats.randgaard@cisco.com> | 2010-12-16 12:17:44 -0300 |
---|---|---|
committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2011-01-19 11:28:17 -0200 |
commit | c027e165d2d901ecab485da5fee72ddce5da0297 (patch) | |
tree | ec04710c711f7b37fed3eccc040729652d97e0fe /drivers/media/video/davinci/vpif_display.c | |
parent | 40c8bcea6bc594c50abf3d3867bd49c8c039eb21 (diff) |
[media] vpif_cap/disp: Added support for DV timings
Added functions to set and get custom DV timings.
Signed-off-by: Mats Randgaard <mats.randgaard@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Vaibhav Hiremath <hvaibhav@ti.com>
Acked-by: Manjunath Hadli <manjunath.hadli@ti.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/davinci/vpif_display.c')
-rw-r--r-- | drivers/media/video/davinci/vpif_display.c | 190 |
1 files changed, 165 insertions, 25 deletions
diff --git a/drivers/media/video/davinci/vpif_display.c b/drivers/media/video/davinci/vpif_display.c index 759c5e855ac..44a885878eb 100644 --- a/drivers/media/video/davinci/vpif_display.c +++ b/drivers/media/video/davinci/vpif_display.c @@ -363,21 +363,17 @@ static irqreturn_t vpif_channel_isr(int irq, void *dev_id) return IRQ_HANDLED; } -static int vpif_get_std_info(struct channel_obj *ch) +static int vpif_update_std_info(struct channel_obj *ch) { - struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; struct video_obj *vid_ch = &ch->video; struct vpif_params *vpifparams = &ch->vpifparams; struct vpif_channel_config_params *std_info = &vpifparams->std_info; const struct vpif_channel_config_params *config; - int index; - - if (!vid_ch->stdid && !vid_ch->dv_preset) - return -EINVAL; + int i; - for (index = 0; index < vpif_ch_params_count; index++) { - config = &ch_params[index]; + for (i = 0; i < vpif_ch_params_count; i++) { + config = &ch_params[i]; if (config->hd_sd == 0) { vpif_dbg(2, debug, "SD format\n"); if (config->stdid & vid_ch->stdid) { @@ -393,17 +389,37 @@ static int vpif_get_std_info(struct channel_obj *ch) } } - if (index == vpif_ch_params_count) + if (i == vpif_ch_params_count) { + vpif_dbg(1, debug, "Format not found\n"); + return -EINVAL; + } + + return 0; +} + +static int vpif_update_resolution(struct channel_obj *ch) +{ + struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; + struct video_obj *vid_ch = &ch->video; + struct vpif_params *vpifparams = &ch->vpifparams; + struct vpif_channel_config_params *std_info = &vpifparams->std_info; + + if (!vid_ch->stdid && !vid_ch->dv_preset && !vid_ch->bt_timings.height) return -EINVAL; + if (vid_ch->stdid || vid_ch->dv_preset) { + if (vpif_update_std_info(ch)) + return -EINVAL; + } + common->fmt.fmt.pix.width = std_info->width; common->fmt.fmt.pix.height = std_info->height; vpif_dbg(1, debug, "Pixel details: Width = %d,Height = %d\n", common->fmt.fmt.pix.width, common->fmt.fmt.pix.height); /* Set height and width paramateres */ - ch->common[VPIF_VIDEO_INDEX].height = std_info->height; - ch->common[VPIF_VIDEO_INDEX].width = std_info->width; + common->height = std_info->height; + common->width = std_info->width; return 0; } @@ -514,10 +530,8 @@ static int vpif_check_format(struct channel_obj *ch, else sizeimage = config_params.channel_bufsize[ch->channel_id]; - if (vpif_get_std_info(ch)) { - vpif_err("Error getting the standard info\n"); + if (vpif_update_resolution(ch)) return -EINVAL; - } hpitch = pixfmt->bytesperline; vpitch = sizeimage / (hpitch * 2); @@ -715,6 +729,7 @@ static int vpif_g_fmt_vid_out(struct file *file, void *priv, struct vpif_fh *fh = priv; struct channel_obj *ch = fh->channel; struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; + int ret = 0; /* Check the validity of the buffer type */ if (common->fmt.type != fmt->type) @@ -724,14 +739,14 @@ static int vpif_g_fmt_vid_out(struct file *file, void *priv, if (mutex_lock_interruptible(&common->lock)) return -ERESTARTSYS; - if (vpif_get_std_info(ch)) { - vpif_err("Error getting the standard info\n"); - return -EINVAL; - } + if (vpif_update_resolution(ch)) + ret = -EINVAL; + else + *fmt = common->fmt; - *fmt = common->fmt; mutex_unlock(&common->lock); - return 0; + + return ret; } static int vpif_s_fmt_vid_out(struct file *file, void *priv, @@ -992,10 +1007,13 @@ static int vpif_s_std(struct file *file, void *priv, v4l2_std_id *std_id) return -ERESTARTSYS; ch->video.stdid = *std_id; + ch->video.dv_preset = V4L2_DV_INVALID; + memset(&ch->video.bt_timings, 0, sizeof(ch->video.bt_timings)); + /* Get the information about the standard */ - if (vpif_get_std_info(ch)) { - vpif_err("Error getting the standard info\n"); - return -EINVAL; + if (vpif_update_resolution(ch)) { + ret = -EINVAL; + goto s_std_exit; } if ((ch->vpifparams.std_info.width * @@ -1362,11 +1380,11 @@ static int vpif_s_dv_preset(struct file *file, void *priv, ch->video.dv_preset = preset->preset; ch->video.stdid = V4L2_STD_UNKNOWN; + memset(&ch->video.bt_timings, 0, sizeof(ch->video.bt_timings)); /* Get the information about the standard */ - if (vpif_get_std_info(ch)) { + if (vpif_update_resolution(ch)) { ret = -EINVAL; - vpif_dbg(1, debug, "Error getting the standard info\n"); } else { /* Configure the default format information */ vpif_config_format(ch); @@ -1395,6 +1413,126 @@ static int vpif_g_dv_preset(struct file *file, void *priv, return 0; } +/** + * vpif_s_dv_timings() - S_DV_TIMINGS handler + * @file: file ptr + * @priv: file handle + * @timings: digital video timings + */ +static int vpif_s_dv_timings(struct file *file, void *priv, + struct v4l2_dv_timings *timings) +{ + struct vpif_fh *fh = priv; + struct channel_obj *ch = fh->channel; + struct vpif_params *vpifparams = &ch->vpifparams; + struct vpif_channel_config_params *std_info = &vpifparams->std_info; + struct video_obj *vid_ch = &ch->video; + struct v4l2_bt_timings *bt = &vid_ch->bt_timings; + int ret; + + if (timings->type != V4L2_DV_BT_656_1120) { + vpif_dbg(2, debug, "Timing type not defined\n"); + return -EINVAL; + } + + /* Configure subdevice timings, if any */ + ret = v4l2_subdev_call(vpif_obj.sd[vid_ch->output_id], + video, s_dv_timings, timings); + if (ret == -ENOIOCTLCMD) { + vpif_dbg(2, debug, "Custom DV timings not supported by " + "subdevice\n"); + return -EINVAL; + } + if (ret < 0) { + vpif_dbg(2, debug, "Error setting custom DV timings\n"); + return ret; + } + + if (!(timings->bt.width && timings->bt.height && + (timings->bt.hbackporch || + timings->bt.hfrontporch || + timings->bt.hsync) && + timings->bt.vfrontporch && + (timings->bt.vbackporch || + timings->bt.vsync))) { + vpif_dbg(2, debug, "Timings for width, height, " + "horizontal back porch, horizontal sync, " + "horizontal front porch, vertical back porch, " + "vertical sync and vertical back porch " + "must be defined\n"); + return -EINVAL; + } + + *bt = timings->bt; + + /* Configure video port timings */ + + std_info->eav2sav = bt->hbackporch + bt->hfrontporch + + bt->hsync - 8; + std_info->sav2eav = bt->width; + + std_info->l1 = 1; + std_info->l3 = bt->vsync + bt->vbackporch + 1; + + if (bt->interlaced) { + if (bt->il_vbackporch || bt->il_vfrontporch || bt->il_vsync) { + std_info->vsize = bt->height * 2 + + bt->vfrontporch + bt->vsync + bt->vbackporch + + bt->il_vfrontporch + bt->il_vsync + + bt->il_vbackporch; + std_info->l5 = std_info->vsize/2 - + (bt->vfrontporch - 1); + std_info->l7 = std_info->vsize/2 + 1; + std_info->l9 = std_info->l7 + bt->il_vsync + + bt->il_vbackporch + 1; + std_info->l11 = std_info->vsize - + (bt->il_vfrontporch - 1); + } else { + vpif_dbg(2, debug, "Required timing values for " + "interlaced BT format missing\n"); + return -EINVAL; + } + } else { + std_info->vsize = bt->height + bt->vfrontporch + + bt->vsync + bt->vbackporch; + std_info->l5 = std_info->vsize - (bt->vfrontporch - 1); + } + strncpy(std_info->name, "Custom timings BT656/1120", + VPIF_MAX_NAME); + std_info->width = bt->width; + std_info->height = bt->height; + std_info->frm_fmt = bt->interlaced ? 0 : 1; + std_info->ycmux_mode = 0; + std_info->capture_format = 0; + std_info->vbi_supported = 0; + std_info->hd_sd = 1; + std_info->stdid = 0; + std_info->dv_preset = V4L2_DV_INVALID; + + vid_ch->stdid = 0; + vid_ch->dv_preset = V4L2_DV_INVALID; + + return 0; +} + +/** + * vpif_g_dv_timings() - G_DV_TIMINGS handler + * @file: file ptr + * @priv: file handle + * @timings: digital video timings + */ +static int vpif_g_dv_timings(struct file *file, void *priv, + struct v4l2_dv_timings *timings) +{ + struct vpif_fh *fh = priv; + struct channel_obj *ch = fh->channel; + struct video_obj *vid_ch = &ch->video; + struct v4l2_bt_timings *bt = &vid_ch->bt_timings; + + timings->bt = *bt; + + return 0; +} /* * vpif_g_chip_ident() - Identify the chip @@ -1498,6 +1636,8 @@ static const struct v4l2_ioctl_ops vpif_ioctl_ops = { .vidioc_enum_dv_presets = vpif_enum_dv_presets, .vidioc_s_dv_preset = vpif_s_dv_preset, .vidioc_g_dv_preset = vpif_g_dv_preset, + .vidioc_s_dv_timings = vpif_s_dv_timings, + .vidioc_g_dv_timings = vpif_g_dv_timings, .vidioc_g_chip_ident = vpif_g_chip_ident, #ifdef CONFIG_VIDEO_ADV_DEBUG .vidioc_g_register = vpif_dbg_g_register, |