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[media] s5p-tv: add dv_timings support for hdmi
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This just adds dv_timings support without modifying existing dv_preset
support.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Tested-by: Tomasz Stanislawski <t.stanislaws@samsung.com>
Acked-by: Tomasz Stanislawski <t.stanislaws@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Hans Verkuil authored and Mauro Carvalho Chehab committed Mar 23, 2013
1 parent 8cf2f7a commit 5efb54b
Showing 1 changed file with 81 additions and 13 deletions.
94 changes: 81 additions & 13 deletions drivers/media/platform/s5p-tv/hdmi_drv.c
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Original file line number Diff line number Diff line change
Expand Up @@ -31,6 +31,7 @@
#include <linux/pm_runtime.h>
#include <linux/clk.h>
#include <linux/regulator/consumer.h>
#include <linux/v4l2-dv-timings.h>

#include <media/s5p_hdmi.h>
#include <media/v4l2-common.h>
Expand Down Expand Up @@ -93,6 +94,8 @@ struct hdmi_device {
int cur_conf_dirty;
/** current preset */
u32 cur_preset;
/** current timings */
struct v4l2_dv_timings cur_timings;
/** other resources */
struct hdmi_resources res;
};
Expand Down Expand Up @@ -477,19 +480,21 @@ static const struct hdmi_timings hdmi_timings_1080p50 = {

static const struct {
u32 preset;
const struct hdmi_timings *timings;
bool reduced_fps;
const struct v4l2_dv_timings dv_timings;
const struct hdmi_timings *hdmi_timings;
} hdmi_timings[] = {
{ V4L2_DV_480P59_94, &hdmi_timings_480p },
{ V4L2_DV_576P50, &hdmi_timings_576p50 },
{ V4L2_DV_720P50, &hdmi_timings_720p50 },
{ V4L2_DV_720P59_94, &hdmi_timings_720p60 },
{ V4L2_DV_720P60, &hdmi_timings_720p60 },
{ V4L2_DV_1080P24, &hdmi_timings_1080p24 },
{ V4L2_DV_1080P30, &hdmi_timings_1080p60 },
{ V4L2_DV_1080P50, &hdmi_timings_1080p50 },
{ V4L2_DV_1080I50, &hdmi_timings_1080i50 },
{ V4L2_DV_1080I60, &hdmi_timings_1080i60 },
{ V4L2_DV_1080P60, &hdmi_timings_1080p60 },
{ V4L2_DV_480P59_94, false, V4L2_DV_BT_CEA_720X480P59_94, &hdmi_timings_480p },
{ V4L2_DV_576P50, false, V4L2_DV_BT_CEA_720X576P50, &hdmi_timings_576p50 },
{ V4L2_DV_720P50, false, V4L2_DV_BT_CEA_1280X720P50, &hdmi_timings_720p50 },
{ V4L2_DV_720P59_94, true, V4L2_DV_BT_CEA_1280X720P60, &hdmi_timings_720p60 },
{ V4L2_DV_720P60, false, V4L2_DV_BT_CEA_1280X720P60, &hdmi_timings_720p60 },
{ V4L2_DV_1080P24, false, V4L2_DV_BT_CEA_1920X1080P24, &hdmi_timings_1080p24 },
{ V4L2_DV_1080P30, false, V4L2_DV_BT_CEA_1920X1080P30, &hdmi_timings_1080p60 },
{ V4L2_DV_1080P50, false, V4L2_DV_BT_CEA_1920X1080P50, &hdmi_timings_1080p50 },
{ V4L2_DV_1080I50, false, V4L2_DV_BT_CEA_1920X1080I50, &hdmi_timings_1080i50 },
{ V4L2_DV_1080I60, false, V4L2_DV_BT_CEA_1920X1080I60, &hdmi_timings_1080i60 },
{ V4L2_DV_1080P60, false, V4L2_DV_BT_CEA_1920X1080P60, &hdmi_timings_1080p60 },
};

static const struct hdmi_timings *hdmi_preset2timings(u32 preset)
Expand All @@ -498,7 +503,7 @@ static const struct hdmi_timings *hdmi_preset2timings(u32 preset)

for (i = 0; i < ARRAY_SIZE(hdmi_timings); ++i)
if (hdmi_timings[i].preset == preset)
return hdmi_timings[i].timings;
return hdmi_timings[i].hdmi_timings;
return NULL;
}

Expand Down Expand Up @@ -647,6 +652,36 @@ static int hdmi_g_dv_preset(struct v4l2_subdev *sd,
return 0;
}

static int hdmi_s_dv_timings(struct v4l2_subdev *sd,
struct v4l2_dv_timings *timings)
{
struct hdmi_device *hdev = sd_to_hdmi_dev(sd);
struct device *dev = hdev->dev;
int i;

for (i = 0; i < ARRAY_SIZE(hdmi_timings); i++)
if (v4l_match_dv_timings(&hdmi_timings[i].dv_timings,
timings, 0))
break;
if (i == ARRAY_SIZE(hdmi_timings)) {
dev_err(dev, "timings not supported\n");
return -EINVAL;
}
hdev->cur_conf = hdmi_timings[i].hdmi_timings;
hdev->cur_conf_dirty = 1;
hdev->cur_timings = *timings;
if (!hdmi_timings[i].reduced_fps)
hdev->cur_timings.bt.flags &= ~V4L2_DV_FL_CAN_REDUCE_FPS;
return 0;
}

static int hdmi_g_dv_timings(struct v4l2_subdev *sd,
struct v4l2_dv_timings *timings)
{
*timings = sd_to_hdmi_dev(sd)->cur_timings;
return 0;
}

static int hdmi_g_mbus_fmt(struct v4l2_subdev *sd,
struct v4l2_mbus_framefmt *fmt)
{
Expand Down Expand Up @@ -679,6 +714,35 @@ static int hdmi_enum_dv_presets(struct v4l2_subdev *sd,
preset);
}

static int hdmi_enum_dv_timings(struct v4l2_subdev *sd,
struct v4l2_enum_dv_timings *timings)
{
if (timings->index >= ARRAY_SIZE(hdmi_timings))
return -EINVAL;
timings->timings = hdmi_timings[timings->index].dv_timings;
if (!hdmi_timings[timings->index].reduced_fps)
timings->timings.bt.flags &= ~V4L2_DV_FL_CAN_REDUCE_FPS;
return 0;
}

static int hdmi_dv_timings_cap(struct v4l2_subdev *sd,
struct v4l2_dv_timings_cap *cap)
{
struct hdmi_device *hdev = sd_to_hdmi_dev(sd);

/* Let the phy fill in the pixelclock range */
v4l2_subdev_call(hdev->phy_sd, video, dv_timings_cap, cap);
cap->type = V4L2_DV_BT_656_1120;
cap->bt.min_width = 720;
cap->bt.max_width = 1920;
cap->bt.min_height = 480;
cap->bt.max_height = 1080;
cap->bt.standards = V4L2_DV_BT_STD_CEA861;
cap->bt.capabilities = V4L2_DV_BT_CAP_INTERLACED |
V4L2_DV_BT_CAP_PROGRESSIVE;
return 0;
}

static const struct v4l2_subdev_core_ops hdmi_sd_core_ops = {
.s_power = hdmi_s_power,
};
Expand All @@ -687,6 +751,10 @@ static const struct v4l2_subdev_video_ops hdmi_sd_video_ops = {
.s_dv_preset = hdmi_s_dv_preset,
.g_dv_preset = hdmi_g_dv_preset,
.enum_dv_presets = hdmi_enum_dv_presets,
.s_dv_timings = hdmi_s_dv_timings,
.g_dv_timings = hdmi_g_dv_timings,
.enum_dv_timings = hdmi_enum_dv_timings,
.dv_timings_cap = hdmi_dv_timings_cap,
.g_mbus_fmt = hdmi_g_mbus_fmt,
.s_stream = hdmi_s_stream,
};
Expand Down

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