[media] saa7706h: convert to the control framework
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Richard Röjfors <richard.rojfors@pelagicore.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/radio/saa7706h.c b/drivers/media/radio/saa7706h.c
index d1f30d6..ec805b0 100644
--- a/drivers/media/radio/saa7706h.c
+++ b/drivers/media/radio/saa7706h.c
@@ -25,6 +25,7 @@
#include <linux/i2c.h>
#include <linux/slab.h>
#include <media/v4l2-device.h>
+#include <media/v4l2-ctrls.h>
#define DRIVER_NAME "saa7706h"
@@ -126,6 +127,7 @@
struct saa7706h_state {
struct v4l2_subdev sd;
+ struct v4l2_ctrl_handler hdl;
unsigned muted;
};
@@ -316,42 +318,32 @@
return err;
}
-static int saa7706h_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
+static int saa7706h_s_ctrl(struct v4l2_ctrl *ctrl)
{
- switch (qc->id) {
- case V4L2_CID_AUDIO_MUTE:
- return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
- }
- return -EINVAL;
-}
-
-static int saa7706h_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
-{
- struct saa7706h_state *state = to_state(sd);
+ struct saa7706h_state *state =
+ container_of(ctrl->handler, struct saa7706h_state, hdl);
switch (ctrl->id) {
case V4L2_CID_AUDIO_MUTE:
- ctrl->value = state->muted;
- return 0;
+ if (ctrl->val)
+ return saa7706h_mute(&state->sd);
+ return saa7706h_unmute(&state->sd);
}
return -EINVAL;
}
-static int saa7706h_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
-{
- switch (ctrl->id) {
- case V4L2_CID_AUDIO_MUTE:
- if (ctrl->value)
- return saa7706h_mute(sd);
- return saa7706h_unmute(sd);
- }
- return -EINVAL;
-}
+static const struct v4l2_ctrl_ops saa7706h_ctrl_ops = {
+ .s_ctrl = saa7706h_s_ctrl,
+};
static const struct v4l2_subdev_core_ops saa7706h_core_ops = {
- .queryctrl = saa7706h_queryctrl,
- .g_ctrl = saa7706h_g_ctrl,
- .s_ctrl = saa7706h_s_ctrl,
+ .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,
};
static const struct v4l2_subdev_ops saa7706h_ops = {
@@ -383,13 +375,20 @@
sd = &state->sd;
v4l2_i2c_subdev_init(sd, client, &saa7706h_ops);
+ v4l2_ctrl_handler_init(&state->hdl, 4);
+ v4l2_ctrl_new_std(&state->hdl, &saa7706h_ctrl_ops,
+ V4L2_CID_AUDIO_MUTE, 0, 1, 1, 1);
+ sd->ctrl_handler = &state->hdl;
+ err = state->hdl.error;
+ if (err)
+ goto err;
+
/* check the rom versions */
err = saa7706h_get_reg16(sd, SAA7706H_DSP1_ROM_VER);
if (err < 0)
goto err;
if (err != SUPPORTED_DSP1_ROM_VER)
v4l2_warn(sd, "Unknown DSP1 ROM code version: 0x%x\n", err);
-
state->muted = 1;
/* startup in a muted state */
@@ -401,6 +400,7 @@
err:
v4l2_device_unregister_subdev(sd);
+ v4l2_ctrl_handler_free(&state->hdl);
kfree(to_state(sd));
printk(KERN_ERR DRIVER_NAME ": Failed to probe: %d\n", err);
@@ -411,9 +411,11 @@
static int saa7706h_remove(struct i2c_client *client)
{
struct v4l2_subdev *sd = i2c_get_clientdata(client);
+ struct saa7706h_state *state = to_state(sd);
saa7706h_mute(sd);
v4l2_device_unregister_subdev(sd);
+ v4l2_ctrl_handler_free(&state->hdl);
kfree(to_state(sd));
return 0;
}