V4L/DVB: ivtv: convert gpio subdev to new control framework

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

3 files changed, 38 insertions, 41 deletions

diff --git a/drivers/media/video/ivtv/ivtv-driver.c b/drivers/media/video/ivtv/ivtv-driver.c
index f72e9d1cee09..53ea31aab155 100644
--- a/drivers/media/video/ivtv/ivtv-driver.c
+++ b/drivers/media/video/ivtv/ivtv-driver.c
@@ -1386,6 +1386,7 @@ static void ivtv_remove(struct pci_dev *pdev)
         printk(KERN_INFO "ivtv: Removed %s\n", itv->card_name);
 
         v4l2_device_unregister(&itv->v4l2_dev);
+        v4l2_ctrl_handler_free(&itv->hdl_gpio);
         kfree(itv);
 }
 
diff --git a/drivers/media/video/ivtv/ivtv-driver.h b/drivers/media/video/ivtv/ivtv-driver.h
index 102071246218..d2260de4c812 100644
--- a/drivers/media/video/ivtv/ivtv-driver.h
+++ b/drivers/media/video/ivtv/ivtv-driver.h
@@ -632,6 +632,7 @@ struct ivtv {
 
         struct v4l2_device v4l2_dev;
         struct v4l2_subdev sd_gpio;     /* GPIO sub-device */
+        struct v4l2_ctrl_handler hdl_gpio;
         u16 instance;
 
         /* High-level state info */
diff --git a/drivers/media/video/ivtv/ivtv-gpio.c b/drivers/media/video/ivtv/ivtv-gpio.c
index aede061cae5d..8f0d07789053 100644
--- a/drivers/media/video/ivtv/ivtv-gpio.c
+++ b/drivers/media/video/ivtv/ivtv-gpio.c
@@ -24,6 +24,7 @@
 #include "ivtv-gpio.h"
 #include "tuner-xc2028.h"
 #include <media/tuner.h>
+#include <media/v4l2-ctrls.h>
 
 /*
  * GPIO assignment of Yuan MPG600/MPG160
@@ -149,16 +150,10 @@ static inline struct ivtv *sd_to_ivtv(struct v4l2_subdev *sd)
         return container_of(sd, struct ivtv, sd_gpio);
 }
 
-static struct v4l2_queryctrl gpio_ctrl_mute = {
-        .id            = V4L2_CID_AUDIO_MUTE,
-        .type          = V4L2_CTRL_TYPE_BOOLEAN,
-        .name          = "Mute",
-        .minimum       = 0,
-        .maximum       = 1,
-        .step          = 1,
-        .default_value = 1,
-        .flags         = 0,
-};
+static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
+{
+        return &container_of(ctrl->handler, struct ivtv, hdl_gpio)->sd_gpio;
+}
 
 static int subdev_s_clock_freq(struct v4l2_subdev *sd, u32 freq)
 {
@@ -262,40 +257,24 @@ static int subdev_s_audio_routing(struct v4l2_subdev *sd,
         return 0;
 }
 
-static int subdev_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+static int subdev_s_ctrl(struct v4l2_ctrl *ctrl)
 {
+        struct v4l2_subdev *sd = to_sd(ctrl);
         struct ivtv *itv = sd_to_ivtv(sd);
         u16 mask, data;
 
-        if (ctrl->id != V4L2_CID_AUDIO_MUTE)
-                return -EINVAL;
-        mask = itv->card->gpio_audio_mute.mask;
-        data = itv->card->gpio_audio_mute.mute;
-        ctrl->value = (read_reg(IVTV_REG_GPIO_OUT) & mask) == data;
-        return 0;
-}
-
-static int subdev_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
-{
-        struct ivtv *itv = sd_to_ivtv(sd);
-        u16 mask, data;
-
-        if (ctrl->id != V4L2_CID_AUDIO_MUTE)
-                return -EINVAL;
-        mask = itv->card->gpio_audio_mute.mask;
-        data = ctrl->value ? itv->card->gpio_audio_mute.mute : 0;
-        if (mask)
-                write_reg((read_reg(IVTV_REG_GPIO_OUT) & ~mask) | (data & mask), IVTV_REG_GPIO_OUT);
-        return 0;
+        switch (ctrl->id) {
+        case V4L2_CID_AUDIO_MUTE:
+                mask = itv->card->gpio_audio_mute.mask;
+                data = ctrl->val ? itv->card->gpio_audio_mute.mute : 0;
+                if (mask)
+                        write_reg((read_reg(IVTV_REG_GPIO_OUT) & ~mask) |
+                                        (data & mask), IVTV_REG_GPIO_OUT);
+                return 0;
+        }
+        return -EINVAL;
 }
 
-static int subdev_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
-{
-        if (qc->id != V4L2_CID_AUDIO_MUTE)
-                return -EINVAL;
-        *qc = gpio_ctrl_mute;
-        return 0;
-}
 
 static int subdev_log_status(struct v4l2_subdev *sd)
 {
@@ -304,6 +283,7 @@ static int subdev_log_status(struct v4l2_subdev *sd)
         IVTV_INFO("GPIO status: DIR=0x%04x OUT=0x%04x IN=0x%04x\n",
                         read_reg(IVTV_REG_GPIO_DIR), read_reg(IVTV_REG_GPIO_OUT),
                         read_reg(IVTV_REG_GPIO_IN));
+        v4l2_ctrl_handler_log_status(&itv->hdl_gpio, sd->name);
         return 0;
 }
 
@@ -327,11 +307,19 @@ static int subdev_s_video_routing(struct v4l2_subdev *sd,
         return 0;
 }
 
+static const struct v4l2_ctrl_ops gpio_ctrl_ops = {
+        .s_ctrl = subdev_s_ctrl,
+};
+
 static const struct v4l2_subdev_core_ops subdev_core_ops = {
         .log_status = subdev_log_status,
-        .g_ctrl = subdev_g_ctrl,
-        .s_ctrl = subdev_s_ctrl,
-        .queryctrl = subdev_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,
 };
 
 static const struct v4l2_subdev_tuner_ops subdev_tuner_ops = {
@@ -375,5 +363,12 @@ int ivtv_gpio_init(struct ivtv *itv)
         v4l2_subdev_init(&itv->sd_gpio, &subdev_ops);
         snprintf(itv->sd_gpio.name, sizeof(itv->sd_gpio.name), "%s-gpio", itv->v4l2_dev.name);
         itv->sd_gpio.grp_id = IVTV_HW_GPIO;
+        v4l2_ctrl_handler_init(&itv->hdl_gpio, 1);
+        v4l2_ctrl_new_std(&itv->hdl_gpio, &gpio_ctrl_ops,
+                        V4L2_CID_AUDIO_MUTE, 0, 1, 1, 0);
+        if (itv->hdl_gpio.error)
+                return itv->hdl_gpio.error;
+        itv->sd_gpio.ctrl_handler = &itv->hdl_gpio;
+        v4l2_ctrl_handler_setup(&itv->hdl_gpio);
         return v4l2_device_register_subdev(&itv->v4l2_dev, &itv->sd_gpio);
 }