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authorSakari Ailus <sakari.ailus@linux.intel.com>2014-05-21 16:58:11 -0300
committerMauro Carvalho Chehab <m.chehab@samsung.com>2014-08-21 15:25:12 -0500
commit0e2a6b7f2b9303410c93fd4724f9d36ebc7be1c3 (patch)
tree2478a1c79892546a62a6c94566cce319295e5f08 /drivers/media
parenta913d8742e275dd2d80726afac02311a0f49d161 (diff)
[media] smiapp: Implement the test pattern control
Add support for the V4L2_CID_TEST_PATTERN control. When the solid colour mode is selected, additional controls become available for setting the solid four solid colour components. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'drivers/media')
-rw-r--r--drivers/media/i2c/smiapp/smiapp-core.c79
-rw-r--r--drivers/media/i2c/smiapp/smiapp.h4
2 files changed, 78 insertions, 5 deletions
diff --git a/drivers/media/i2c/smiapp/smiapp-core.c b/drivers/media/i2c/smiapp/smiapp-core.c
index 1eaf975d3612..437ec29bdf64 100644
--- a/drivers/media/i2c/smiapp/smiapp-core.c
+++ b/drivers/media/i2c/smiapp/smiapp-core.c
@@ -31,8 +31,9 @@
#include <linux/device.h>
#include <linux/gpio.h>
#include <linux/module.h>
-#include <linux/slab.h>
#include <linux/regulator/consumer.h>
+#include <linux/slab.h>
+#include <linux/smiapp.h>
#include <linux/v4l2-mediabus.h>
#include <media/v4l2-device.h>
@@ -404,6 +405,14 @@ static void smiapp_update_mbus_formats(struct smiapp_sensor *sensor)
pixel_order_str[pixel_order]);
}
+static const char * const smiapp_test_patterns[] = {
+ "Disabled",
+ "Solid Colour",
+ "Eight Vertical Colour Bars",
+ "Colour Bars With Fade to Grey",
+ "Pseudorandom Sequence (PN9)",
+};
+
static int smiapp_set_ctrl(struct v4l2_ctrl *ctrl)
{
struct smiapp_sensor *sensor =
@@ -477,6 +486,35 @@ static int smiapp_set_ctrl(struct v4l2_ctrl *ctrl)
return smiapp_pll_update(sensor);
+ case V4L2_CID_TEST_PATTERN: {
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(sensor->test_data); i++)
+ v4l2_ctrl_activate(
+ sensor->test_data[i],
+ ctrl->val ==
+ V4L2_SMIAPP_TEST_PATTERN_MODE_SOLID_COLOUR);
+
+ return smiapp_write(
+ sensor, SMIAPP_REG_U16_TEST_PATTERN_MODE, ctrl->val);
+ }
+
+ case V4L2_CID_TEST_PATTERN_RED:
+ return smiapp_write(
+ sensor, SMIAPP_REG_U16_TEST_DATA_RED, ctrl->val);
+
+ case V4L2_CID_TEST_PATTERN_GREENR:
+ return smiapp_write(
+ sensor, SMIAPP_REG_U16_TEST_DATA_GREENR, ctrl->val);
+
+ case V4L2_CID_TEST_PATTERN_BLUE:
+ return smiapp_write(
+ sensor, SMIAPP_REG_U16_TEST_DATA_BLUE, ctrl->val);
+
+ case V4L2_CID_TEST_PATTERN_GREENB:
+ return smiapp_write(
+ sensor, SMIAPP_REG_U16_TEST_DATA_GREENB, ctrl->val);
+
default:
return -EINVAL;
}
@@ -489,10 +527,10 @@ static const struct v4l2_ctrl_ops smiapp_ctrl_ops = {
static int smiapp_init_controls(struct smiapp_sensor *sensor)
{
struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
- unsigned int max;
+ unsigned int max, i;
int rval;
- rval = v4l2_ctrl_handler_init(&sensor->pixel_array->ctrl_handler, 7);
+ rval = v4l2_ctrl_handler_init(&sensor->pixel_array->ctrl_handler, 12);
if (rval)
return rval;
sensor->pixel_array->ctrl_handler.lock = &sensor->mutex;
@@ -535,6 +573,20 @@ static int smiapp_init_controls(struct smiapp_sensor *sensor)
&sensor->pixel_array->ctrl_handler, &smiapp_ctrl_ops,
V4L2_CID_PIXEL_RATE, 1, INT_MAX, 1, 1);
+ v4l2_ctrl_new_std_menu_items(&sensor->pixel_array->ctrl_handler,
+ &smiapp_ctrl_ops, V4L2_CID_TEST_PATTERN,
+ ARRAY_SIZE(smiapp_test_patterns) - 1,
+ 0, 0, smiapp_test_patterns);
+
+ for (i = 0; i < ARRAY_SIZE(sensor->test_data); i++) {
+ int max_value = (1 << sensor->csi_format->width) - 1;
+ sensor->test_data[i] =
+ v4l2_ctrl_new_std(
+ &sensor->pixel_array->ctrl_handler,
+ &smiapp_ctrl_ops, V4L2_CID_TEST_PATTERN_RED + i,
+ 0, max_value, 1, max_value);
+ }
+
if (sensor->pixel_array->ctrl_handler.error) {
dev_err(&client->dev,
"pixel array controls initialization failed (%d)\n",
@@ -1671,17 +1723,34 @@ static int smiapp_set_format(struct v4l2_subdev *subdev,
if (fmt->pad == ssd->source_pad) {
u32 code = fmt->format.code;
int rval = __smiapp_get_format(subdev, fh, fmt);
+ bool range_changed = false;
+ unsigned int i;
if (!rval && subdev == &sensor->src->sd) {
const struct smiapp_csi_data_format *csi_format =
smiapp_validate_csi_data_format(sensor, code);
- if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE)
+
+ if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE) {
+ if (csi_format->width !=
+ sensor->csi_format->width)
+ range_changed = true;
+
sensor->csi_format = csi_format;
+ }
+
fmt->format.code = csi_format->code;
}
mutex_unlock(&sensor->mutex);
- return rval;
+ if (rval || !range_changed)
+ return rval;
+
+ for (i = 0; i < ARRAY_SIZE(sensor->test_data); i++)
+ v4l2_ctrl_modify_range(
+ sensor->test_data[i],
+ 0, (1 << sensor->csi_format->width) - 1, 1, 0);
+
+ return 0;
}
/* Sink pad. Width and height are changeable here. */
diff --git a/drivers/media/i2c/smiapp/smiapp.h b/drivers/media/i2c/smiapp/smiapp.h
index 7cc5aae662fd..874b49ffd88f 100644
--- a/drivers/media/i2c/smiapp/smiapp.h
+++ b/drivers/media/i2c/smiapp/smiapp.h
@@ -54,6 +54,8 @@
(1000 + (SMIAPP_RESET_DELAY_CLOCKS * 1000 \
+ (clk) / 1000 - 1) / ((clk) / 1000))
+#define SMIAPP_COLOUR_COMPONENTS 4
+
#include "smiapp-limits.h"
struct smiapp_quirk;
@@ -241,6 +243,8 @@ struct smiapp_sensor {
/* src controls */
struct v4l2_ctrl *link_freq;
struct v4l2_ctrl *pixel_rate_csi;
+ /* test pattern colour components */
+ struct v4l2_ctrl *test_data[SMIAPP_COLOUR_COMPONENTS];
};
#define to_smiapp_subdev(_sd) \

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