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[media] media: davinci: vpif: display: separate out subdev from output

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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>
This commit is contained in:
Lad, Prabhakar
2012-09-25 08:11:49 -03:00
committed by Mauro Carvalho Chehab
parent c389648a92
commit 2bd4e58c9d
4 changed files with 192 additions and 45 deletions
Download Patch File Download Diff File Expand all files Collapse all files

141
drivers/media/platform/davinci/vpif_display.c
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@@ -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);