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author | Lad, Prabhakar <prabhakar.lad@ti.com> | 2012-09-25 11:11:49 (GMT) |
---|---|---|
committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-10-06 01:12:27 (GMT) |
commit | 2bd4e58c9d00325b7a850b2ac73fd902e9148b77 (patch) | |
tree | ef3242b551f05c3a54533e4a21ff21acd9a3b137 /drivers/media/platform | |
parent | c389648a927bada928c854dccccf0301317784eb (diff) | |
download | linux-fsl-qoriq-2bd4e58c9d00325b7a850b2ac73fd902e9148b77.tar.xz |
[media] media: davinci: vpif: display: separate out subdev from output
vpif_display relied on a 1-1 mapping of output and subdev. This is not
necessarily the case. Separate the two. So there is a list of subdevs
and a list of outputs. Each output refers to a subdev and has routing
information. An output does not have to have a subdev.
The initial output for each channel is set to the fist output.
Currently missing is support for associating multiple subdevs with
an output.
Signed-off-by: Lad, Prabhakar <prabhakar.lad@ti.com>
Signed-off-by: Manjunath Hadli <manjunath.hadli@ti.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/platform')
-rw-r--r-- | drivers/media/platform/davinci/vpif_display.c | 141 |
1 files changed, 111 insertions, 30 deletions
diff --git a/drivers/media/platform/davinci/vpif_display.c b/drivers/media/platform/davinci/vpif_display.c index 6229e48..ae8329d 100644 --- a/drivers/media/platform/davinci/vpif_display.c +++ b/drivers/media/platform/davinci/vpif_display.c @@ -308,7 +308,7 @@ static int vpif_start_streaming(struct vb2_queue *vq, unsigned int count) channel2_intr_assert(); channel2_intr_enable(1); enable_channel2(1); - if (vpif_config_data->ch2_clip_en) + if (vpif_config_data->chan_config[VPIF_CHANNEL2_VIDEO].clip_en) channel2_clipping_enable(1); } @@ -317,7 +317,7 @@ static int vpif_start_streaming(struct vb2_queue *vq, unsigned int count) channel3_intr_assert(); channel3_intr_enable(1); enable_channel3(1); - if (vpif_config_data->ch3_clip_en) + if (vpif_config_data->chan_config[VPIF_CHANNEL3_VIDEO].clip_en) channel3_clipping_enable(1); } @@ -1174,14 +1174,16 @@ static int vpif_streamoff(struct file *file, void *priv, if (buftype == V4L2_BUF_TYPE_VIDEO_OUTPUT) { /* disable channel */ if (VPIF_CHANNEL2_VIDEO == ch->channel_id) { - if (vpif_config_data->ch2_clip_en) + if (vpif_config_data-> + chan_config[VPIF_CHANNEL2_VIDEO].clip_en) channel2_clipping_enable(0); enable_channel2(0); channel2_intr_enable(0); } if ((VPIF_CHANNEL3_VIDEO == ch->channel_id) || (2 == common->started)) { - if (vpif_config_data->ch3_clip_en) + if (vpif_config_data-> + chan_config[VPIF_CHANNEL3_VIDEO].clip_en) channel3_clipping_enable(0); enable_channel3(0); channel3_intr_enable(0); @@ -1214,41 +1216,118 @@ static int vpif_enum_output(struct file *file, void *fh, { struct vpif_display_config *config = vpif_dev->platform_data; + struct vpif_display_chan_config *chan_cfg; + struct vpif_fh *vpif_handler = fh; + struct channel_obj *ch = vpif_handler->channel; - if (output->index >= config->output_count) { + chan_cfg = &config->chan_config[ch->channel_id]; + if (output->index >= chan_cfg->output_count) { vpif_dbg(1, debug, "Invalid output index\n"); return -EINVAL; } - strcpy(output->name, config->output[output->index]); - output->type = V4L2_OUTPUT_TYPE_ANALOG; - output->std = VPIF_V4L2_STD; + *output = chan_cfg->outputs[output->index].output; + return 0; +} + +/** + * vpif_output_to_subdev() - Maps output to sub device + * @vpif_cfg - global config ptr + * @chan_cfg - channel config ptr + * @index - Given output index from application + * + * lookup the sub device information for a given output index. + * we report all the output to application. output table also + * has sub device name for the each output + */ +static int +vpif_output_to_subdev(struct vpif_display_config *vpif_cfg, + struct vpif_display_chan_config *chan_cfg, int index) +{ + struct vpif_subdev_info *subdev_info; + const char *subdev_name; + int i; + + vpif_dbg(2, debug, "vpif_output_to_subdev\n"); + + if (chan_cfg->outputs == NULL) + return -1; + + subdev_name = chan_cfg->outputs[index].subdev_name; + if (subdev_name == NULL) + return -1; + + /* loop through the sub device list to get the sub device info */ + for (i = 0; i < vpif_cfg->subdev_count; i++) { + subdev_info = &vpif_cfg->subdevinfo[i]; + if (!strcmp(subdev_info->name, subdev_name)) + return i; + } + return -1; +} + +/** + * vpif_set_output() - Select an output + * @vpif_cfg - global config ptr + * @ch - channel + * @index - Given output index from application + * + * Select the given output. + */ +static int vpif_set_output(struct vpif_display_config *vpif_cfg, + struct channel_obj *ch, int index) +{ + struct vpif_display_chan_config *chan_cfg = + &vpif_cfg->chan_config[ch->channel_id]; + struct vpif_subdev_info *subdev_info = NULL; + struct v4l2_subdev *sd = NULL; + u32 input = 0, output = 0; + int sd_index; + int ret; + + sd_index = vpif_output_to_subdev(vpif_cfg, chan_cfg, index); + if (sd_index >= 0) { + sd = vpif_obj.sd[sd_index]; + subdev_info = &vpif_cfg->subdevinfo[sd_index]; + } + if (sd) { + input = chan_cfg->outputs[index].input_route; + output = chan_cfg->outputs[index].output_route; + ret = v4l2_subdev_call(sd, video, s_routing, input, output, 0); + if (ret < 0 && ret != -ENOIOCTLCMD) { + vpif_err("Failed to set output\n"); + return ret; + } + + } + ch->output_idx = index; + ch->sd = sd; + if (chan_cfg->outputs != NULL) + /* update tvnorms from the sub device output info */ + ch->video_dev->tvnorms = chan_cfg->outputs[index].output.std; return 0; } static int vpif_s_output(struct file *file, void *priv, unsigned int i) { + struct vpif_display_config *config = vpif_dev->platform_data; + struct vpif_display_chan_config *chan_cfg; struct vpif_fh *fh = priv; struct channel_obj *ch = fh->channel; struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX]; - int ret = 0; + + chan_cfg = &config->chan_config[ch->channel_id]; + + if (i >= chan_cfg->output_count) + return -EINVAL; if (common->started) { vpif_err("Streaming in progress\n"); return -EBUSY; } - ret = v4l2_device_call_until_err(&vpif_obj.v4l2_dev, 1, video, - s_routing, 0, i, 0); - - if (ret < 0) - vpif_err("Failed to set output standard\n"); - - ch->output_idx = i; - if (vpif_obj.sd[i]) - ch->sd = vpif_obj.sd[i]; - return ret; + return vpif_set_output(config, ch, i); } static int vpif_g_output(struct file *file, void *priv, unsigned int *i) @@ -1291,9 +1370,12 @@ vpif_enum_dv_timings(struct file *file, void *priv, { struct vpif_fh *fh = priv; struct channel_obj *ch = fh->channel; + int ret; - return v4l2_subdev_call(vpif_obj.sd[ch->output_idx], - video, enum_dv_timings, timings); + ret = v4l2_subdev_call(ch->sd, video, enum_dv_timings, timings); + if (ret == -ENOIOCTLCMD && ret == -ENODEV) + return -EINVAL; + return ret; } /** @@ -1320,12 +1402,9 @@ static int vpif_s_dv_timings(struct file *file, void *priv, /* Configure subdevice timings, if any */ ret = v4l2_subdev_call(ch->sd, video, s_dv_timings, timings); - if (ret == -ENOIOCTLCMD) { - vpif_dbg(2, debug, "Custom DV timings not supported by " - "subdevice\n"); - return -ENODATA; - } - if (ret < 0 && ret != -ENODEV) { + if (ret == -ENOIOCTLCMD || ret == -ENODEV) + ret = 0; + if (ret < 0) { vpif_dbg(2, debug, "Error setting custom DV timings\n"); return ret; } @@ -1531,9 +1610,6 @@ static struct video_device vpif_video_template = { .name = "vpif", .fops = &vpif_fops, .ioctl_ops = &vpif_ioctl_ops, - .tvnorms = VPIF_V4L2_STD, - .current_norm = V4L2_STD_625_50, - }; /*Configure the channels, buffer sizei, request irq */ @@ -1756,6 +1832,11 @@ static __init int vpif_probe(struct platform_device *pdev) ch->video_dev->lock = &common->lock; video_set_drvdata(ch->video_dev, ch); + /* select output 0 */ + err = vpif_set_output(config, ch, 0); + if (err) + goto probe_out; + /* register video device */ vpif_dbg(1, debug, "channel=%x,channel->video_dev=%x\n", (int)ch, (int)&ch->video_dev); |