[media] mt9m111: convert to the control framework
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
[g.liakhovetski@gmx.de: simplified pointer arithmetic]
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/mt9m111.c b/drivers/media/video/mt9m111.c
index 28d447c..8cacbf0 100644
--- a/drivers/media/video/mt9m111.c
+++ b/drivers/media/video/mt9m111.c
@@ -17,6 +17,7 @@
#include <media/soc_camera.h>
#include <media/soc_mediabus.h>
#include <media/v4l2-common.h>
+#include <media/v4l2-ctrls.h>
#include <media/v4l2-chip-ident.h>
/*
@@ -178,6 +179,8 @@
struct mt9m111 {
struct v4l2_subdev subdev;
+ struct v4l2_ctrl_handler hdl;
+ struct v4l2_ctrl *gain;
int model; /* V4L2_IDENT_MT9M111 or V4L2_IDENT_MT9M112 code
* from v4l2-chip-ident.h */
enum mt9m111_context context;
@@ -186,13 +189,8 @@
int power_count;
const struct mt9m111_datafmt *fmt;
int lastpage; /* PageMap cache value */
- unsigned int gain;
- unsigned char autoexposure;
unsigned char datawidth;
unsigned int powered:1;
- unsigned int hflip:1;
- unsigned int vflip:1;
- unsigned int autowhitebalance:1;
};
static struct mt9m111 *to_mt9m111(const struct i2c_client *client)
@@ -646,48 +644,6 @@
}
#endif
-static const struct v4l2_queryctrl mt9m111_controls[] = {
- {
- .id = V4L2_CID_VFLIP,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "Flip Verticaly",
- .minimum = 0,
- .maximum = 1,
- .step = 1,
- .default_value = 0,
- }, {
- .id = V4L2_CID_HFLIP,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "Flip Horizontaly",
- .minimum = 0,
- .maximum = 1,
- .step = 1,
- .default_value = 0,
- }, { /* gain = 1/32*val (=>gain=1 if val==32) */
- .id = V4L2_CID_GAIN,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Gain",
- .minimum = 0,
- .maximum = 63 * 2 * 2,
- .step = 1,
- .default_value = 32,
- .flags = V4L2_CTRL_FLAG_SLIDER,
- }, {
- .id = V4L2_CID_EXPOSURE_AUTO,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "Auto Exposure",
- .minimum = 0,
- .maximum = 1,
- .step = 1,
- .default_value = 1,
- }
-};
-
-static struct soc_camera_ops mt9m111_ops = {
- .controls = mt9m111_controls,
- .num_controls = ARRAY_SIZE(mt9m111_controls),
-};
-
static int mt9m111_set_flip(struct mt9m111 *mt9m111, int flip, int mask)
{
struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
@@ -728,7 +684,6 @@
if (gain > 63 * 2 * 2)
return -EINVAL;
- mt9m111->gain = gain;
if ((gain >= 64 * 2) && (gain < 63 * 2 * 2))
val = (1 << 10) | (1 << 9) | (gain / 4);
else if ((gain >= 64) && (gain < 64 * 2))
@@ -742,118 +697,47 @@
static int mt9m111_set_autoexposure(struct mt9m111 *mt9m111, int on)
{
struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
- int ret;
if (on)
- ret = reg_set(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOEXPO_EN);
- else
- ret = reg_clear(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOEXPO_EN);
-
- if (!ret)
- mt9m111->autoexposure = on;
-
- return ret;
+ return reg_set(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOEXPO_EN);
+ return reg_clear(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOEXPO_EN);
}
static int mt9m111_set_autowhitebalance(struct mt9m111 *mt9m111, int on)
{
struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
- int ret;
if (on)
- ret = reg_set(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOWHITEBAL_EN);
- else
- ret = reg_clear(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOWHITEBAL_EN);
-
- if (!ret)
- mt9m111->autowhitebalance = on;
-
- return ret;
+ return reg_set(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOWHITEBAL_EN);
+ return reg_clear(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOWHITEBAL_EN);
}
-static int mt9m111_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+static int mt9m111_s_ctrl(struct v4l2_ctrl *ctrl)
{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
- int data;
+ struct mt9m111 *mt9m111 = container_of(ctrl->handler,
+ struct mt9m111, hdl);
switch (ctrl->id) {
case V4L2_CID_VFLIP:
- if (mt9m111->context == HIGHPOWER)
- data = reg_read(READ_MODE_B);
- else
- data = reg_read(READ_MODE_A);
-
- if (data < 0)
- return -EIO;
- ctrl->value = !!(data & MT9M111_RMB_MIRROR_ROWS);
- break;
- case V4L2_CID_HFLIP:
- if (mt9m111->context == HIGHPOWER)
- data = reg_read(READ_MODE_B);
- else
- data = reg_read(READ_MODE_A);
-
- if (data < 0)
- return -EIO;
- ctrl->value = !!(data & MT9M111_RMB_MIRROR_COLS);
- break;
- case V4L2_CID_GAIN:
- data = mt9m111_get_global_gain(mt9m111);
- if (data < 0)
- return data;
- ctrl->value = data;
- break;
- case V4L2_CID_EXPOSURE_AUTO:
- ctrl->value = mt9m111->autoexposure;
- break;
- case V4L2_CID_AUTO_WHITE_BALANCE:
- ctrl->value = mt9m111->autowhitebalance;
- break;
- }
- return 0;
-}
-
-static int mt9m111_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
-{
- struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
- const struct v4l2_queryctrl *qctrl;
- int ret;
-
- qctrl = soc_camera_find_qctrl(&mt9m111_ops, ctrl->id);
- if (!qctrl)
- return -EINVAL;
-
- switch (ctrl->id) {
- case V4L2_CID_VFLIP:
- mt9m111->vflip = ctrl->value;
- ret = mt9m111_set_flip(mt9m111, ctrl->value,
+ return mt9m111_set_flip(mt9m111, ctrl->val,
MT9M111_RMB_MIRROR_ROWS);
- break;
case V4L2_CID_HFLIP:
- mt9m111->hflip = ctrl->value;
- ret = mt9m111_set_flip(mt9m111, ctrl->value,
+ return mt9m111_set_flip(mt9m111, ctrl->val,
MT9M111_RMB_MIRROR_COLS);
- break;
case V4L2_CID_GAIN:
- ret = mt9m111_set_global_gain(mt9m111, ctrl->value);
- break;
+ return mt9m111_set_global_gain(mt9m111, ctrl->val);
case V4L2_CID_EXPOSURE_AUTO:
- ret = mt9m111_set_autoexposure(mt9m111, ctrl->value);
- break;
+ return mt9m111_set_autoexposure(mt9m111, ctrl->val);
case V4L2_CID_AUTO_WHITE_BALANCE:
- ret = mt9m111_set_autowhitebalance(mt9m111, ctrl->value);
- break;
- default:
- ret = -EINVAL;
+ return mt9m111_set_autowhitebalance(mt9m111, ctrl->val);
}
- return ret;
+ return -EINVAL;
}
static int mt9m111_suspend(struct mt9m111 *mt9m111)
{
- mt9m111->gain = mt9m111_get_global_gain(mt9m111);
+ v4l2_ctrl_s_ctrl(mt9m111->gain, mt9m111_get_global_gain(mt9m111));
return 0;
}
@@ -863,11 +747,7 @@
mt9m111_set_context(mt9m111, mt9m111->context);
mt9m111_set_pixfmt(mt9m111, mt9m111->fmt->code);
mt9m111_setup_rect(mt9m111, &mt9m111->rect);
- mt9m111_set_flip(mt9m111, mt9m111->hflip, MT9M111_RMB_MIRROR_COLS);
- mt9m111_set_flip(mt9m111, mt9m111->vflip, MT9M111_RMB_MIRROR_ROWS);
- mt9m111_set_global_gain(mt9m111, mt9m111->gain);
- mt9m111_set_autoexposure(mt9m111, mt9m111->autoexposure);
- mt9m111_set_autowhitebalance(mt9m111, mt9m111->autowhitebalance);
+ v4l2_ctrl_handler_setup(&mt9m111->hdl);
}
static int mt9m111_resume(struct mt9m111 *mt9m111)
@@ -895,8 +775,6 @@
ret = mt9m111_reset(mt9m111);
if (!ret)
ret = mt9m111_set_context(mt9m111, mt9m111->context);
- if (!ret)
- ret = mt9m111_set_autoexposure(mt9m111, mt9m111->autoexposure);
if (ret)
dev_err(&client->dev, "mt9m111 init failed: %d\n", ret);
return ret;
@@ -919,9 +797,6 @@
mt9m111->lastpage = -1;
- mt9m111->autoexposure = 1;
- mt9m111->autowhitebalance = 1;
-
data = reg_read(CHIP_VERSION);
switch (data) {
@@ -935,17 +810,16 @@
dev_info(&client->dev, "Detected a MT9M112 chip ID %x\n", data);
break;
default:
- ret = -ENODEV;
dev_err(&client->dev,
"No MT9M111/MT9M112/MT9M131 chip detected register read %x\n",
data);
- goto ei2c;
+ return -ENODEV;
}
ret = mt9m111_init(mt9m111);
-
-ei2c:
- return ret;
+ if (ret)
+ return ret;
+ return v4l2_ctrl_handler_setup(&mt9m111->hdl);
}
static int mt9m111_s_power(struct v4l2_subdev *sd, int on)
@@ -982,9 +856,11 @@
return ret;
}
+static const struct v4l2_ctrl_ops mt9m111_ctrl_ops = {
+ .s_ctrl = mt9m111_s_ctrl,
+};
+
static struct v4l2_subdev_core_ops mt9m111_subdev_core_ops = {
- .g_ctrl = mt9m111_g_ctrl,
- .s_ctrl = mt9m111_s_ctrl,
.g_chip_ident = mt9m111_g_chip_ident,
.s_power = mt9m111_s_power,
#ifdef CONFIG_VIDEO_ADV_DEBUG
@@ -1066,10 +942,27 @@
return -ENOMEM;
v4l2_i2c_subdev_init(&mt9m111->subdev, client, &mt9m111_subdev_ops);
+ v4l2_ctrl_handler_init(&mt9m111->hdl, 5);
+ v4l2_ctrl_new_std(&mt9m111->hdl, &mt9m111_ctrl_ops,
+ V4L2_CID_VFLIP, 0, 1, 1, 0);
+ v4l2_ctrl_new_std(&mt9m111->hdl, &mt9m111_ctrl_ops,
+ V4L2_CID_HFLIP, 0, 1, 1, 0);
+ v4l2_ctrl_new_std(&mt9m111->hdl, &mt9m111_ctrl_ops,
+ V4L2_CID_AUTO_WHITE_BALANCE, 0, 1, 1, 1);
+ mt9m111->gain = v4l2_ctrl_new_std(&mt9m111->hdl, &mt9m111_ctrl_ops,
+ V4L2_CID_GAIN, 0, 63 * 2 * 2, 1, 32);
+ v4l2_ctrl_new_std_menu(&mt9m111->hdl,
+ &mt9m111_ctrl_ops, V4L2_CID_EXPOSURE_AUTO, 1, 0,
+ V4L2_EXPOSURE_AUTO);
+ mt9m111->subdev.ctrl_handler = &mt9m111->hdl;
+ if (mt9m111->hdl.error) {
+ int err = mt9m111->hdl.error;
+
+ kfree(mt9m111);
+ return err;
+ }
/* Second stage probe - when a capture adapter is there */
- icd->ops = &mt9m111_ops;
-
mt9m111->rect.left = MT9M111_MIN_DARK_COLS;
mt9m111->rect.top = MT9M111_MIN_DARK_ROWS;
mt9m111->rect.width = MT9M111_MAX_WIDTH;
@@ -1078,7 +971,7 @@
ret = mt9m111_video_probe(icd, client);
if (ret) {
- icd->ops = NULL;
+ v4l2_ctrl_handler_free(&mt9m111->hdl);
kfree(mt9m111);
}
@@ -1088,9 +981,9 @@
static int mt9m111_remove(struct i2c_client *client)
{
struct mt9m111 *mt9m111 = to_mt9m111(client);
- struct soc_camera_device *icd = client->dev.platform_data;
- icd->ops = NULL;
+ v4l2_device_unregister_subdev(&mt9m111->subdev);
+ v4l2_ctrl_handler_free(&mt9m111->hdl);
kfree(mt9m111);
return 0;