#include <media/v4l2-device.h>
#include <media/v4l2-chip-ident.h>
#include <media/v4l2-common.h>
+#include <media/v4l2-ctrls.h>
#include "tvp7002_reg.h"
MODULE_DESCRIPTION("TI TVP7002 Video and Graphics Digitizer driver");
/* Device definition */
struct tvp7002 {
struct v4l2_subdev sd;
+ struct v4l2_ctrl_handler hdl;
const struct tvp7002_config *pdata;
int ver;
int streaming;
const struct tvp7002_preset_definition *current_preset;
- u8 gain;
};
/*
return container_of(sd, struct tvp7002, sd);
}
+static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
+{
+ return &container_of(ctrl->handler, struct tvp7002, hdl)->sd;
+}
+
/*
* tvp7002_read - Read a value from a register in an TVP7002
* @sd: ptr to v4l2_subdev struct
return -EINVAL;
}
-/*
- * tvp7002_g_ctrl() - Get a control
- * @sd: ptr to v4l2_subdev struct
- * @ctrl: ptr to v4l2_control struct
- *
- * Get a control for a TVP7002 decoder device.
- * Returns zero when successful or -EINVAL if register access fails.
- */
-static int tvp7002_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
-{
- struct tvp7002 *device = to_tvp7002(sd);
-
- switch (ctrl->id) {
- case V4L2_CID_GAIN:
- ctrl->value = device->gain;
- return 0;
- default:
- return -EINVAL;
- }
-}
-
/*
* tvp7002_s_ctrl() - Set a control
- * @sd: ptr to v4l2_subdev struct
- * @ctrl: ptr to v4l2_control struct
+ * @ctrl: ptr to v4l2_ctrl struct
*
* Set a control in TVP7002 decoder device.
* Returns zero when successful or -EINVAL if register access fails.
*/
-static int tvp7002_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+static int tvp7002_s_ctrl(struct v4l2_ctrl *ctrl)
{
- struct tvp7002 *device = to_tvp7002(sd);
+ struct v4l2_subdev *sd = to_sd(ctrl);
int error = 0;
switch (ctrl->id) {
case V4L2_CID_GAIN:
- tvp7002_write_err(sd, TVP7002_R_FINE_GAIN,
- ctrl->value & 0xff, &error);
- tvp7002_write_err(sd, TVP7002_G_FINE_GAIN,
- ctrl->value & 0xff, &error);
- tvp7002_write_err(sd, TVP7002_B_FINE_GAIN,
- ctrl->value & 0xff, &error);
-
- if (error < 0)
- return error;
-
- /* Set only after knowing there is no error */
- device->gain = ctrl->value & 0xff;
- return 0;
- default:
- return -EINVAL;
- }
-}
-
-/*
- * tvp7002_queryctrl() - Query a control
- * @sd: ptr to v4l2_subdev struct
- * @qc: ptr to v4l2_queryctrl struct
- *
- * Query a control of a TVP7002 decoder device.
- * Returns zero when successful or -EINVAL if register read fails.
- */
-static int tvp7002_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
-{
- switch (qc->id) {
- case V4L2_CID_GAIN:
- /*
- * Gain is supported [0-255, default=0, step=1]
- */
- return v4l2_ctrl_query_fill(qc, 0, 255, 1, 0);
- default:
- return -EINVAL;
+ tvp7002_write_err(sd, TVP7002_R_FINE_GAIN, ctrl->val, &error);
+ tvp7002_write_err(sd, TVP7002_G_FINE_GAIN, ctrl->val, &error);
+ tvp7002_write_err(sd, TVP7002_B_FINE_GAIN, ctrl->val, &error);
+ return error;
}
+ return -EINVAL;
}
/*
device->streaming ? "yes" : "no");
/* Print the current value of the gain control */
- v4l2_info(sd, "Gain: %u\n", device->gain);
+ v4l2_ctrl_handler_log_status(&device->hdl, sd->name);
return 0;
}
return v4l_fill_dv_preset_info(tvp7002_presets[preset->index].preset, preset);
}
+static const struct v4l2_ctrl_ops tvp7002_ctrl_ops = {
+ .s_ctrl = tvp7002_s_ctrl,
+};
+
/* V4L2 core operation handlers */
static const struct v4l2_subdev_core_ops tvp7002_core_ops = {
.g_chip_ident = tvp7002_g_chip_ident,
.log_status = tvp7002_log_status,
- .g_ctrl = tvp7002_g_ctrl,
- .s_ctrl = tvp7002_s_ctrl,
- .queryctrl = tvp7002_queryctrl,
+ .g_ext_ctrls = v4l2_subdev_g_ext_ctrls,
+ .try_ext_ctrls = v4l2_subdev_try_ext_ctrls,
+ .s_ext_ctrls = v4l2_subdev_s_ext_ctrls,
+ .g_ctrl = v4l2_subdev_g_ctrl,
+ .s_ctrl = v4l2_subdev_s_ctrl,
+ .queryctrl = v4l2_subdev_queryctrl,
+ .querymenu = v4l2_subdev_querymenu,
#ifdef CONFIG_VIDEO_ADV_DEBUG
.g_register = tvp7002_g_register,
.s_register = tvp7002_s_register,
.video = &tvp7002_video_ops,
};
-static struct tvp7002 tvp7002_dev = {
- .streaming = 0,
- .current_preset = tvp7002_presets,
- .gain = 0,
-};
-
/*
* tvp7002_probe - Probe a TVP7002 device
* @c: ptr to i2c_client struct
return -ENODEV;
}
- device = kmalloc(sizeof(struct tvp7002), GFP_KERNEL);
+ device = kzalloc(sizeof(struct tvp7002), GFP_KERNEL);
if (!device)
return -ENOMEM;
- *device = tvp7002_dev;
sd = &device->sd;
device->pdata = c->dev.platform_data;
+ device->current_preset = tvp7002_presets;
/* Tell v4l2 the device is ready */
v4l2_i2c_subdev_init(sd, c, &tvp7002_ops);
preset.preset = device->current_preset->preset;
error = tvp7002_s_dv_preset(sd, &preset);
+ v4l2_ctrl_handler_init(&device->hdl, 1);
+ v4l2_ctrl_new_std(&device->hdl, &tvp7002_ctrl_ops,
+ V4L2_CID_GAIN, 0, 255, 1, 0);
+ sd->ctrl_handler = &device->hdl;
+ if (device->hdl.error) {
+ int err = device->hdl.error;
+
+ v4l2_ctrl_handler_free(&device->hdl);
+ kfree(device);
+ return err;
+ }
+ v4l2_ctrl_handler_setup(&device->hdl);
+
found_error:
if (error < 0)
kfree(device);
"on address 0x%x\n", c->addr);
v4l2_device_unregister_subdev(sd);
+ v4l2_ctrl_handler_free(&device->hdl);
kfree(device);
return 0;
}
git.openpandora.org / pandora-kernel.git / blobdiff