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path: root/drivers/media/video/tvp7002.c
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Diffstat (limited to 'drivers/media/video/tvp7002.c')
-rw-r--r--drivers/media/video/tvp7002.c105
1 files changed, 89 insertions, 16 deletions
diff --git a/drivers/media/video/tvp7002.c b/drivers/media/video/tvp7002.c
index d7676d85c4df..fb6a5b57eb83 100644
--- a/drivers/media/video/tvp7002.c
+++ b/drivers/media/video/tvp7002.c
@@ -29,6 +29,7 @@
#include <linux/slab.h>
#include <linux/videodev2.h>
#include <linux/module.h>
+#include <linux/v4l2-dv-timings.h>
#include <media/tvp7002.h>
#include <media/v4l2-device.h>
#include <media/v4l2-chip-ident.h>
@@ -328,6 +329,7 @@ static const struct i2c_reg_value tvp7002_parms_720P50[] = {
/* Preset definition for handling device operation */
struct tvp7002_preset_definition {
u32 preset;
+ struct v4l2_dv_timings timings;
const struct i2c_reg_value *p_settings;
enum v4l2_colorspace color_space;
enum v4l2_field scanmode;
@@ -341,6 +343,7 @@ struct tvp7002_preset_definition {
static const struct tvp7002_preset_definition tvp7002_presets[] = {
{
V4L2_DV_720P60,
+ V4L2_DV_BT_CEA_1280X720P60,
tvp7002_parms_720P60,
V4L2_COLORSPACE_REC709,
V4L2_FIELD_NONE,
@@ -351,6 +354,7 @@ static const struct tvp7002_preset_definition tvp7002_presets[] = {
},
{
V4L2_DV_1080I60,
+ V4L2_DV_BT_CEA_1920X1080I60,
tvp7002_parms_1080I60,
V4L2_COLORSPACE_REC709,
V4L2_FIELD_INTERLACED,
@@ -361,6 +365,7 @@ static const struct tvp7002_preset_definition tvp7002_presets[] = {
},
{
V4L2_DV_1080I50,
+ V4L2_DV_BT_CEA_1920X1080I50,
tvp7002_parms_1080I50,
V4L2_COLORSPACE_REC709,
V4L2_FIELD_INTERLACED,
@@ -371,6 +376,7 @@ static const struct tvp7002_preset_definition tvp7002_presets[] = {
},
{
V4L2_DV_720P50,
+ V4L2_DV_BT_CEA_1280X720P50,
tvp7002_parms_720P50,
V4L2_COLORSPACE_REC709,
V4L2_FIELD_NONE,
@@ -381,6 +387,7 @@ static const struct tvp7002_preset_definition tvp7002_presets[] = {
},
{
V4L2_DV_1080P60,
+ V4L2_DV_BT_CEA_1920X1080P60,
tvp7002_parms_1080P60,
V4L2_COLORSPACE_REC709,
V4L2_FIELD_NONE,
@@ -391,6 +398,7 @@ static const struct tvp7002_preset_definition tvp7002_presets[] = {
},
{
V4L2_DV_480P59_94,
+ V4L2_DV_BT_CEA_720X480P59_94,
tvp7002_parms_480P,
V4L2_COLORSPACE_SMPTE170M,
V4L2_FIELD_NONE,
@@ -401,6 +409,7 @@ static const struct tvp7002_preset_definition tvp7002_presets[] = {
},
{
V4L2_DV_576P50,
+ V4L2_DV_BT_CEA_720X576P50,
tvp7002_parms_576P,
V4L2_COLORSPACE_SMPTE170M,
V4L2_FIELD_NONE,
@@ -605,6 +614,35 @@ static int tvp7002_s_dv_preset(struct v4l2_subdev *sd,
return -EINVAL;
}
+static int tvp7002_s_dv_timings(struct v4l2_subdev *sd,
+ struct v4l2_dv_timings *dv_timings)
+{
+ struct tvp7002 *device = to_tvp7002(sd);
+ const struct v4l2_bt_timings *bt = &dv_timings->bt;
+ int i;
+
+ if (dv_timings->type != V4L2_DV_BT_656_1120)
+ return -EINVAL;
+ for (i = 0; i < NUM_PRESETS; i++) {
+ const struct v4l2_bt_timings *t = &tvp7002_presets[i].timings.bt;
+
+ if (!memcmp(bt, t, &bt->standards - &bt->width)) {
+ device->current_preset = &tvp7002_presets[i];
+ return tvp7002_write_inittab(sd, tvp7002_presets[i].p_settings);
+ }
+ }
+ return -EINVAL;
+}
+
+static int tvp7002_g_dv_timings(struct v4l2_subdev *sd,
+ struct v4l2_dv_timings *dv_timings)
+{
+ struct tvp7002 *device = to_tvp7002(sd);
+
+ *dv_timings = device->current_preset->timings;
+ return 0;
+}
+
/*
* tvp7002_s_ctrl() - Set a control
* @ctrl: ptr to v4l2_ctrl struct
@@ -666,11 +704,9 @@ static int tvp7002_mbus_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *f
* Returns the current DV preset by TVP7002. If no active input is
* detected, returns -EINVAL
*/
-static int tvp7002_query_dv_preset(struct v4l2_subdev *sd,
- struct v4l2_dv_preset *qpreset)
+static int tvp7002_query_dv(struct v4l2_subdev *sd, int *index)
{
const struct tvp7002_preset_definition *presets = tvp7002_presets;
- struct tvp7002 *device;
u8 progressive;
u32 lpfr;
u32 cpln;
@@ -679,12 +715,9 @@ static int tvp7002_query_dv_preset(struct v4l2_subdev *sd,
u8 lpf_msb;
u8 cpl_lsb;
u8 cpl_msb;
- int index;
-
- /* Return invalid preset if no active input is detected */
- qpreset->preset = V4L2_DV_INVALID;
- device = to_tvp7002(sd);
+ /* Return invalid index if no active input is detected */
+ *index = NUM_PRESETS;
/* Read standards from device registers */
tvp7002_read_err(sd, TVP7002_L_FRAME_STAT_LSBS, &lpf_lsb, &error);
@@ -705,8 +738,8 @@ static int tvp7002_query_dv_preset(struct v4l2_subdev *sd,
progressive = (lpf_msb & TVP7002_INPR_MASK) >> TVP7002_IP_SHIFT;
/* Do checking of video modes */
- for (index = 0; index < NUM_PRESETS; index++, presets++)
- if (lpfr == presets->lines_per_frame &&
+ for (*index = 0; *index < NUM_PRESETS; (*index)++, presets++)
+ if (lpfr == presets->lines_per_frame &&
progressive == presets->progressive) {
if (presets->cpl_min == 0xffff)
break;
@@ -714,17 +747,42 @@ static int tvp7002_query_dv_preset(struct v4l2_subdev *sd,
break;
}
- if (index == NUM_PRESETS) {
+ if (*index == NUM_PRESETS) {
v4l2_dbg(1, debug, sd, "detection failed: lpf = %x, cpl = %x\n",
lpfr, cpln);
- return 0;
+ return -ENOLINK;
}
- /* Set values in found preset */
- qpreset->preset = presets->preset;
-
/* Update lines per frame and clocks per line info */
- v4l2_dbg(1, debug, sd, "detected preset: %d\n", presets->preset);
+ v4l2_dbg(1, debug, sd, "detected preset: %d\n", *index);
+ return 0;
+}
+
+static int tvp7002_query_dv_preset(struct v4l2_subdev *sd,
+ struct v4l2_dv_preset *qpreset)
+{
+ int index;
+ int err = tvp7002_query_dv(sd, &index);
+
+ if (err || index == NUM_PRESETS) {
+ qpreset->preset = V4L2_DV_INVALID;
+ if (err == -ENOLINK)
+ err = 0;
+ return err;
+ }
+ qpreset->preset = tvp7002_presets[index].preset;
+ return 0;
+}
+
+static int tvp7002_query_dv_timings(struct v4l2_subdev *sd,
+ struct v4l2_dv_timings *timings)
+{
+ int index;
+ int err = tvp7002_query_dv(sd, &index);
+
+ if (err)
+ return err;
+ *timings = tvp7002_presets[index].timings;
return 0;
}
@@ -894,6 +952,17 @@ static int tvp7002_enum_dv_presets(struct v4l2_subdev *sd,
return v4l_fill_dv_preset_info(tvp7002_presets[preset->index].preset, preset);
}
+static int tvp7002_enum_dv_timings(struct v4l2_subdev *sd,
+ struct v4l2_enum_dv_timings *timings)
+{
+ /* Check requested format index is within range */
+ if (timings->index >= NUM_PRESETS)
+ return -EINVAL;
+
+ timings->timings = tvp7002_presets[timings->index].timings;
+ return 0;
+}
+
static const struct v4l2_ctrl_ops tvp7002_ctrl_ops = {
.s_ctrl = tvp7002_s_ctrl,
};
@@ -920,6 +989,10 @@ static const struct v4l2_subdev_video_ops tvp7002_video_ops = {
.enum_dv_presets = tvp7002_enum_dv_presets,
.s_dv_preset = tvp7002_s_dv_preset,
.query_dv_preset = tvp7002_query_dv_preset,
+ .g_dv_timings = tvp7002_g_dv_timings,
+ .s_dv_timings = tvp7002_s_dv_timings,
+ .enum_dv_timings = tvp7002_enum_dv_timings,
+ .query_dv_timings = tvp7002_query_dv_timings,
.s_stream = tvp7002_s_stream,
.g_mbus_fmt = tvp7002_mbus_fmt,
.try_mbus_fmt = tvp7002_mbus_fmt,
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.