[media] si470x: Clean up, introduce the control framework

This cleans up the code and si470x now uses the proper v4l2 frameworks
and passes most of the v4l2-compliance tests.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Tobias Lorenz <tobias.lorenz@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/radio/si470x/radio-si470x-common.c b/drivers/media/radio/si470x/radio-si470x-common.c
index 0e740c9..de9475f 100644 (file)
--- a/drivers/media/radio/si470x/radio-si470x-common.c
+++ b/drivers/media/radio/si470x/radio-si470x-common.c
@@ -196,9 +196,9 @@ static int si470x_set_chan(struct si470x_device *radio, unsigned short chan)
        }
 
        if ((radio->registers[STATUSRSSI] & STATUSRSSI_STC) == 0)
-               dev_warn(&radio->videodev->dev, "tune does not complete\n");
+               dev_warn(&radio->videodev.dev, "tune does not complete\n");
        if (timed_out)
-               dev_warn(&radio->videodev->dev,
+               dev_warn(&radio->videodev.dev,
                        "tune timed out after %u ms\n", tune_timeout);
 
 stop:
@@ -344,12 +344,12 @@ static int si470x_set_seek(struct si470x_device *radio,
        }
 
        if ((radio->registers[STATUSRSSI] & STATUSRSSI_STC) == 0)
-               dev_warn(&radio->videodev->dev, "seek does not complete\n");
+               dev_warn(&radio->videodev.dev, "seek does not complete\n");
        if (radio->registers[STATUSRSSI] & STATUSRSSI_SF)
-               dev_warn(&radio->videodev->dev,
+               dev_warn(&radio->videodev.dev,
                        "seek failed / band limit reached\n");
        if (timed_out)
-               dev_warn(&radio->videodev->dev,
+               dev_warn(&radio->videodev.dev,
                        "seek timed out after %u ms\n", seek_timeout);
 
 stop:
@@ -463,7 +463,6 @@ static ssize_t si470x_fops_read(struct file *file, char __user *buf,
        unsigned int block_count = 0;
 
        /* switch on rds reception */
-       mutex_lock(&radio->lock);
        if ((radio->registers[SYSCONFIG1] & SYSCONFIG1_RDS) == 0)
                si470x_rds_on(radio);
 
@@ -505,7 +504,6 @@ static ssize_t si470x_fops_read(struct file *file, char __user *buf,
        }
 
 done:
-       mutex_unlock(&radio->lock);
        return retval;
 }
 
@@ -521,10 +519,8 @@ static unsigned int si470x_fops_poll(struct file *file,
 
        /* switch on rds reception */
 
-       mutex_lock(&radio->lock);
        if ((radio->registers[SYSCONFIG1] & SYSCONFIG1_RDS) == 0)
                si470x_rds_on(radio);
-       mutex_unlock(&radio->lock);
 
        poll_wait(file, &radio->read_queue, pts);
 
@@ -553,134 +549,27 @@ static const struct v4l2_file_operations si470x_fops = {
  * Video4Linux Interface
  **************************************************************************/
 
-/*
- * si470x_vidioc_queryctrl - enumerate control items
- */
-static int si470x_vidioc_queryctrl(struct file *file, void *priv,
-               struct v4l2_queryctrl *qc)
-{
-       struct si470x_device *radio = video_drvdata(file);
-       int retval = -EINVAL;
-
-       /* abort if qc->id is below V4L2_CID_BASE */
-       if (qc->id < V4L2_CID_BASE)
-               goto done;
-
-       /* search video control */
-       switch (qc->id) {
-       case V4L2_CID_AUDIO_VOLUME:
-               return v4l2_ctrl_query_fill(qc, 0, 15, 1, 15);
-       case V4L2_CID_AUDIO_MUTE:
-               return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
-       }
 
-       /* disable unsupported base controls */
-       /* to satisfy kradio and such apps */
-       if ((retval == -EINVAL) && (qc->id < V4L2_CID_LASTP1)) {
-               qc->flags = V4L2_CTRL_FLAG_DISABLED;
-               retval = 0;
-       }
-
-done:
-       if (retval < 0)
-               dev_warn(&radio->videodev->dev,
-                       "query controls failed with %d\n", retval);
-       return retval;
-}
-
-
-/*
- * si470x_vidioc_g_ctrl - get the value of a control
- */
-static int si470x_vidioc_g_ctrl(struct file *file, void *priv,
-               struct v4l2_control *ctrl)
+static int si470x_s_ctrl(struct v4l2_ctrl *ctrl)
 {
-       struct si470x_device *radio = video_drvdata(file);
-       int retval = 0;
-
-       mutex_lock(&radio->lock);
-       /* safety checks */
-       retval = si470x_disconnect_check(radio);
-       if (retval)
-               goto done;
-
-       switch (ctrl->id) {
-       case V4L2_CID_AUDIO_VOLUME:
-               ctrl->value = radio->registers[SYSCONFIG2] &
-                               SYSCONFIG2_VOLUME;
-               break;
-       case V4L2_CID_AUDIO_MUTE:
-               ctrl->value = ((radio->registers[POWERCFG] &
-                               POWERCFG_DMUTE) == 0) ? 1 : 0;
-               break;
-       default:
-               retval = -EINVAL;
-       }
-
-done:
-       if (retval < 0)
-               dev_warn(&radio->videodev->dev,
-                       "get control failed with %d\n", retval);
-
-       mutex_unlock(&radio->lock);
-       return retval;
-}
-
-
-/*
- * si470x_vidioc_s_ctrl - set the value of a control
- */
-static int si470x_vidioc_s_ctrl(struct file *file, void *priv,
-               struct v4l2_control *ctrl)
-{
-       struct si470x_device *radio = video_drvdata(file);
-       int retval = 0;
-
-       mutex_lock(&radio->lock);
-       /* safety checks */
-       retval = si470x_disconnect_check(radio);
-       if (retval)
-               goto done;
+       struct si470x_device *radio =
+               container_of(ctrl->handler, struct si470x_device, hdl);
 
        switch (ctrl->id) {
        case V4L2_CID_AUDIO_VOLUME:
                radio->registers[SYSCONFIG2] &= ~SYSCONFIG2_VOLUME;
-               radio->registers[SYSCONFIG2] |= ctrl->value;
-               retval = si470x_set_register(radio, SYSCONFIG2);
-               break;
+               radio->registers[SYSCONFIG2] |= ctrl->val;
+               return si470x_set_register(radio, SYSCONFIG2);
        case V4L2_CID_AUDIO_MUTE:
-               if (ctrl->value == 1)
+               if (ctrl->val)
                        radio->registers[POWERCFG] &= ~POWERCFG_DMUTE;
                else
                        radio->registers[POWERCFG] |= POWERCFG_DMUTE;
-               retval = si470x_set_register(radio, POWERCFG);
+               return si470x_set_register(radio, POWERCFG);
                break;
        default:
-               retval = -EINVAL;
+               return -EINVAL;
        }
-
-done:
-       if (retval < 0)
-               dev_warn(&radio->videodev->dev,
-                       "set control failed with %d\n", retval);
-       mutex_unlock(&radio->lock);
-       return retval;
-}
-
-
-/*
- * si470x_vidioc_g_audio - get audio attributes
- */
-static int si470x_vidioc_g_audio(struct file *file, void *priv,
-               struct v4l2_audio *audio)
-{
-       /* driver constants */
-       audio->index = 0;
-       strcpy(audio->name, "Radio");
-       audio->capability = V4L2_AUDCAP_STEREO;
-       audio->mode = 0;
-
-       return 0;
 }
 
 
@@ -693,12 +582,6 @@ static int si470x_vidioc_g_tuner(struct file *file, void *priv,
        struct si470x_device *radio = video_drvdata(file);
        int retval = 0;
 
-       mutex_lock(&radio->lock);
-       /* safety checks */
-       retval = si470x_disconnect_check(radio);
-       if (retval)
-               goto done;
-
        if (tuner->index != 0) {
                retval = -EINVAL;
                goto done;
@@ -737,7 +620,7 @@ static int si470x_vidioc_g_tuner(struct file *file, void *priv,
        if ((radio->registers[STATUSRSSI] & STATUSRSSI_ST) == 0)
                tuner->rxsubchans = V4L2_TUNER_SUB_MONO;
        else
-               tuner->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
+               tuner->rxsubchans = V4L2_TUNER_SUB_STEREO;
        /* If there is a reliable method of detecting an RDS channel,
           then this code should check for that before setting this
           RDS subchannel. */
@@ -761,9 +644,8 @@ static int si470x_vidioc_g_tuner(struct file *file, void *priv,
 
 done:
        if (retval < 0)
-               dev_warn(&radio->videodev->dev,
+               dev_warn(&radio->videodev.dev,
                        "get tuner failed with %d\n", retval);
-       mutex_unlock(&radio->lock);
        return retval;
 }
 
@@ -777,12 +659,6 @@ static int si470x_vidioc_s_tuner(struct file *file, void *priv,
        struct si470x_device *radio = video_drvdata(file);
        int retval = 0;
 
-       mutex_lock(&radio->lock);
-       /* safety checks */
-       retval = si470x_disconnect_check(radio);
-       if (retval)
-               goto done;
-
        if (tuner->index != 0)
                goto done;
 
@@ -802,9 +678,8 @@ static int si470x_vidioc_s_tuner(struct file *file, void *priv,
 
 done:
        if (retval < 0)
-               dev_warn(&radio->videodev->dev,
+               dev_warn(&radio->videodev.dev,
                        "set tuner failed with %d\n", retval);
-       mutex_unlock(&radio->lock);
        return retval;
 }
 
@@ -818,12 +693,6 @@ static int si470x_vidioc_g_frequency(struct file *file, void *priv,
        struct si470x_device *radio = video_drvdata(file);
        int retval = 0;
 
-       /* safety checks */
-       mutex_lock(&radio->lock);
-       retval = si470x_disconnect_check(radio);
-       if (retval)
-               goto done;
-
        if (freq->tuner != 0) {
                retval = -EINVAL;
                goto done;
@@ -834,9 +703,8 @@ static int si470x_vidioc_g_frequency(struct file *file, void *priv,
 
 done:
        if (retval < 0)
-               dev_warn(&radio->videodev->dev,
+               dev_warn(&radio->videodev.dev,
                        "get frequency failed with %d\n", retval);
-       mutex_unlock(&radio->lock);
        return retval;
 }
 
@@ -850,12 +718,6 @@ static int si470x_vidioc_s_frequency(struct file *file, void *priv,
        struct si470x_device *radio = video_drvdata(file);
        int retval = 0;
 
-       mutex_lock(&radio->lock);
-       /* safety checks */
-       retval = si470x_disconnect_check(radio);
-       if (retval)
-               goto done;
-
        if (freq->tuner != 0) {
                retval = -EINVAL;
                goto done;
@@ -865,9 +727,8 @@ static int si470x_vidioc_s_frequency(struct file *file, void *priv,
 
 done:
        if (retval < 0)
-               dev_warn(&radio->videodev->dev,
+               dev_warn(&radio->videodev.dev,
                        "set frequency failed with %d\n", retval);
-       mutex_unlock(&radio->lock);
        return retval;
 }
 
@@ -881,12 +742,6 @@ static int si470x_vidioc_s_hw_freq_seek(struct file *file, void *priv,
        struct si470x_device *radio = video_drvdata(file);
        int retval = 0;
 
-       mutex_lock(&radio->lock);
-       /* safety checks */
-       retval = si470x_disconnect_check(radio);
-       if (retval)
-               goto done;
-
        if (seek->tuner != 0) {
                retval = -EINVAL;
                goto done;
@@ -896,22 +751,20 @@ static int si470x_vidioc_s_hw_freq_seek(struct file *file, void *priv,
 
 done:
        if (retval < 0)
-               dev_warn(&radio->videodev->dev,
+               dev_warn(&radio->videodev.dev,
                        "set hardware frequency seek failed with %d\n", retval);
-       mutex_unlock(&radio->lock);
        return retval;
 }
 
+const struct v4l2_ctrl_ops si470x_ctrl_ops = {
+       .s_ctrl = si470x_s_ctrl,
+};
 
 /*
  * si470x_ioctl_ops - video device ioctl operations
  */
 static const struct v4l2_ioctl_ops si470x_ioctl_ops = {
        .vidioc_querycap        = si470x_vidioc_querycap,
-       .vidioc_queryctrl       = si470x_vidioc_queryctrl,
-       .vidioc_g_ctrl          = si470x_vidioc_g_ctrl,
-       .vidioc_s_ctrl          = si470x_vidioc_s_ctrl,
-       .vidioc_g_audio         = si470x_vidioc_g_audio,
        .vidioc_g_tuner         = si470x_vidioc_g_tuner,
        .vidioc_s_tuner         = si470x_vidioc_s_tuner,
        .vidioc_g_frequency     = si470x_vidioc_g_frequency,
@@ -926,6 +779,6 @@ static const struct v4l2_ioctl_ops si470x_ioctl_ops = {
 struct video_device si470x_viddev_template = {
        .fops                   = &si470x_fops,
        .name                   = DRIVER_NAME,
-       .release                = video_device_release,
+       .release                = video_device_release_empty,
        .ioctl_ops              = &si470x_ioctl_ops,
 };

diff --git a/drivers/media/radio/si470x/radio-si470x-i2c.c b/drivers/media/radio/si470x/radio-si470x-i2c.c
index 9b546a5..a80044c 100644 (file)
--- a/drivers/media/radio/si470x/radio-si470x-i2c.c
+++ b/drivers/media/radio/si470x/radio-si470x-i2c.c
@@ -161,20 +161,6 @@ static int si470x_get_all_registers(struct si470x_device *radio)
 
 
 
-/**************************************************************************
- * General Driver Functions - DISCONNECT_CHECK
- **************************************************************************/
-
-/*
- * si470x_disconnect_check - check whether radio disconnects
- */
-int si470x_disconnect_check(struct si470x_device *radio)
-{
-       return 0;
-}
-
-
-
 /**************************************************************************
  * File Operations Interface
  **************************************************************************/
@@ -185,12 +171,12 @@ int si470x_disconnect_check(struct si470x_device *radio)
 int si470x_fops_open(struct file *file)
 {
        struct si470x_device *radio = video_drvdata(file);
-       int retval = 0;
+       int retval = v4l2_fh_open(file);
 
-       mutex_lock(&radio->lock);
-       radio->users++;
+       if (retval)
+               return retval;
 
-       if (radio->users == 1) {
+       if (v4l2_fh_is_singular_file(file)) {
                /* start radio */
                retval = si470x_start(radio);
                if (retval < 0)
@@ -205,7 +191,8 @@ int si470x_fops_open(struct file *file)
        }
 
 done:
-       mutex_unlock(&radio->lock);
+       if (retval)
+               v4l2_fh_release(file);
        return retval;
 }
 
@@ -216,21 +203,12 @@ done:
 int si470x_fops_release(struct file *file)
 {
        struct si470x_device *radio = video_drvdata(file);
-       int retval = 0;
-
-       /* safety check */
-       if (!radio)
-               return -ENODEV;
 
-       mutex_lock(&radio->lock);
-       radio->users--;
-       if (radio->users == 0)
+       if (v4l2_fh_is_singular_file(file))
                /* stop radio */
-               retval = si470x_stop(radio);
+               si470x_stop(radio);
 
-       mutex_unlock(&radio->lock);
-
-       return retval;
+       return v4l2_fh_release(file);
 }
 
 
@@ -371,32 +349,25 @@ static int __devinit si470x_i2c_probe(struct i2c_client *client,
                goto err_initial;
        }
 
-       radio->users = 0;
        radio->client = client;
        mutex_init(&radio->lock);
 
-       /* video device allocation and initialization */
-       radio->videodev = video_device_alloc();
-       if (!radio->videodev) {
-               retval = -ENOMEM;
-               goto err_radio;
-       }
-       memcpy(radio->videodev, &si470x_viddev_template,
-                       sizeof(si470x_viddev_template));
-       video_set_drvdata(radio->videodev, radio);
+       /* video device initialization */
+       radio->videodev = si470x_viddev_template;
+       video_set_drvdata(&radio->videodev, radio);
 
        /* power up : need 110ms */
        radio->registers[POWERCFG] = POWERCFG_ENABLE;
        if (si470x_set_register(radio, POWERCFG) < 0) {
                retval = -EIO;
-               goto err_video;
+               goto err_radio;
        }
        msleep(110);
 
        /* get device and chip versions */
        if (si470x_get_all_registers(radio) < 0) {
                retval = -EIO;
-               goto err_video;
+               goto err_radio;
        }
        dev_info(&client->dev, "DeviceID=0x%4.4hx ChipID=0x%4.4hx\n",
                        radio->registers[DEVICEID], radio->registers[CHIPID]);
@@ -427,7 +398,7 @@ static int __devinit si470x_i2c_probe(struct i2c_client *client,
        radio->buffer = kmalloc(radio->buf_size, GFP_KERNEL);
        if (!radio->buffer) {
                retval = -EIO;
-               goto err_video;
+               goto err_radio;
        }
 
        /* rds buffer configuration */
@@ -447,7 +418,7 @@ static int __devinit si470x_i2c_probe(struct i2c_client *client,
        }
 
        /* register video device */
-       retval = video_register_device(radio->videodev, VFL_TYPE_RADIO,
+       retval = video_register_device(&radio->videodev, VFL_TYPE_RADIO,
                        radio_nr);
        if (retval) {
                dev_warn(&client->dev, "Could not register video device\n");
@@ -460,8 +431,6 @@ err_all:
        free_irq(client->irq, radio);
 err_rds:
        kfree(radio->buffer);
-err_video:
-       video_device_release(radio->videodev);
 err_radio:
        kfree(radio);
 err_initial:
@@ -477,7 +446,7 @@ static __devexit int si470x_i2c_remove(struct i2c_client *client)
        struct si470x_device *radio = i2c_get_clientdata(client);
 
        free_irq(client->irq, radio);
-       video_unregister_device(radio->videodev);
+       video_unregister_device(&radio->videodev);
        kfree(radio);
 
        return 0;

diff --git a/drivers/media/radio/si470x/radio-si470x-usb.c b/drivers/media/radio/si470x/radio-si470x-usb.c
index b7debb6..f133c3d 100644 (file)
--- a/drivers/media/radio/si470x/radio-si470x-usb.c
+++ b/drivers/media/radio/si470x/radio-si470x-usb.c
@@ -366,23 +366,6 @@ static int si470x_get_scratch_page_versions(struct si470x_device *radio)
 
 
 
-/**************************************************************************
- * General Driver Functions - DISCONNECT_CHECK
- **************************************************************************/
-
-/*
- * si470x_disconnect_check - check whether radio disconnects
- */
-int si470x_disconnect_check(struct si470x_device *radio)
-{
-       if (radio->disconnected)
-               return -EIO;
-       else
-               return 0;
-}
-
-
-
 /**************************************************************************
  * RDS Driver Functions
  **************************************************************************/
@@ -414,9 +397,6 @@ static void si470x_int_in_callback(struct urb *urb)
                }
        }
 
-       /* safety checks */
-       if (radio->disconnected)
-               return;
        if ((radio->registers[SYSCONFIG1] & SYSCONFIG1_RDS) == 0)
                goto resubmit;
 
@@ -512,19 +492,16 @@ resubmit:
 int si470x_fops_open(struct file *file)
 {
        struct si470x_device *radio = video_drvdata(file);
-       int retval;
+       int retval = v4l2_fh_open(file);
 
-       mutex_lock(&radio->lock);
-       radio->users++;
+       if (retval)
+               return retval;
 
        retval = usb_autopm_get_interface(radio->intf);
-       if (retval < 0) {
-               radio->users--;
-               retval = -EIO;
+       if (retval < 0)
                goto done;
-       }
 
-       if (radio->users == 1) {
+       if (v4l2_fh_is_singular_file(file)) {
                /* start radio */
                retval = si470x_start(radio);
                if (retval < 0) {
@@ -555,7 +532,8 @@ int si470x_fops_open(struct file *file)
        }
 
 done:
-       mutex_unlock(&radio->lock);
+       if (retval)
+               v4l2_fh_release(file);
        return retval;
 }
 
@@ -566,45 +544,36 @@ done:
 int si470x_fops_release(struct file *file)
 {
        struct si470x_device *radio = video_drvdata(file);
-       int retval = 0;
 
-       /* safety check */
-       if (!radio) {
-               retval = -ENODEV;
-               goto done;
-       }
-
-       mutex_lock(&radio->lock);
-       radio->users--;
-       if (radio->users == 0) {
+       if (v4l2_fh_is_singular_file(file)) {
                /* shutdown interrupt handler */
                if (radio->int_in_running) {
                        radio->int_in_running = 0;
-               if (radio->int_in_urb)
-                       usb_kill_urb(radio->int_in_urb);
-               }
-
-               if (radio->disconnected) {
-                       video_unregister_device(radio->videodev);
-                       kfree(radio->int_in_buffer);
-                       kfree(radio->buffer);
-                       mutex_unlock(&radio->lock);
-                       kfree(radio);
-                       goto done;
+                       if (radio->int_in_urb)
+                               usb_kill_urb(radio->int_in_urb);
                }
 
                /* cancel read processes */
                wake_up_interruptible(&radio->read_queue);
 
                /* stop radio */
-               retval = si470x_stop(radio);
+               si470x_stop(radio);
                usb_autopm_put_interface(radio->intf);
        }
-       mutex_unlock(&radio->lock);
-done:
-       return retval;
+       return v4l2_fh_release(file);
 }
 
+static void si470x_usb_release(struct video_device *vdev)
+{
+       struct si470x_device *radio = video_get_drvdata(vdev);
+
+       usb_free_urb(radio->int_in_urb);
+       v4l2_ctrl_handler_free(&radio->hdl);
+       v4l2_device_unregister(&radio->v4l2_dev);
+       kfree(radio->int_in_buffer);
+       kfree(radio->buffer);
+       kfree(radio);
+}
 
 
 /**************************************************************************
@@ -623,9 +592,9 @@ int si470x_vidioc_querycap(struct file *file, void *priv,
        strlcpy(capability->card, DRIVER_CARD, sizeof(capability->card));
        usb_make_path(radio->usbdev, capability->bus_info,
                        sizeof(capability->bus_info));
-       capability->capabilities = V4L2_CAP_HW_FREQ_SEEK |
+       capability->device_caps = V4L2_CAP_HW_FREQ_SEEK |
                V4L2_CAP_TUNER | V4L2_CAP_RADIO | V4L2_CAP_RDS_CAPTURE;
-
+       capability->capabilities = capability->device_caps | V4L2_CAP_DEVICE_CAPS;
        return 0;
 }
 
@@ -653,8 +622,6 @@ static int si470x_usb_driver_probe(struct usb_interface *intf,
                retval = -ENOMEM;
                goto err_initial;
        }
-       radio->users = 0;
-       radio->disconnected = 0;
        radio->usbdev = interface_to_usbdev(intf);
        radio->intf = intf;
        mutex_init(&radio->lock);
@@ -691,20 +658,34 @@ static int si470x_usb_driver_probe(struct usb_interface *intf,
                goto err_intbuffer;
        }
 
-       /* video device allocation and initialization */
-       radio->videodev = video_device_alloc();
-       if (!radio->videodev) {
-               retval = -ENOMEM;
+       retval = v4l2_device_register(&intf->dev, &radio->v4l2_dev);
+       if (retval < 0) {
+               dev_err(&intf->dev, "couldn't register v4l2_device\n");
                goto err_urb;
        }
-       memcpy(radio->videodev, &si470x_viddev_template,
-                       sizeof(si470x_viddev_template));
-       video_set_drvdata(radio->videodev, radio);
+
+       v4l2_ctrl_handler_init(&radio->hdl, 2);
+       v4l2_ctrl_new_std(&radio->hdl, &si470x_ctrl_ops,
+                         V4L2_CID_AUDIO_MUTE, 0, 1, 1, 1);
+       v4l2_ctrl_new_std(&radio->hdl, &si470x_ctrl_ops,
+                         V4L2_CID_AUDIO_VOLUME, 0, 15, 1, 15);
+       if (radio->hdl.error) {
+               retval = radio->hdl.error;
+               dev_err(&intf->dev, "couldn't register control\n");
+               goto err_dev;
+       }
+       radio->videodev = si470x_viddev_template;
+       radio->videodev.ctrl_handler = &radio->hdl;
+       radio->videodev.lock = &radio->lock;
+       radio->videodev.v4l2_dev = &radio->v4l2_dev;
+       radio->videodev.release = si470x_usb_release;
+       set_bit(V4L2_FL_USE_FH_PRIO, &radio->videodev.flags);
+       video_set_drvdata(&radio->videodev, radio);
 
        /* get device and chip versions */
        if (si470x_get_all_registers(radio) < 0) {
                retval = -EIO;
-               goto err_video;
+               goto err_ctrl;
        }
        dev_info(&intf->dev, "DeviceID=0x%4.4hx ChipID=0x%4.4hx\n",
                        radio->registers[DEVICEID], radio->registers[CHIPID]);
@@ -721,7 +702,7 @@ static int si470x_usb_driver_probe(struct usb_interface *intf,
        /* get software and hardware versions */
        if (si470x_get_scratch_page_versions(radio) < 0) {
                retval = -EIO;
-               goto err_video;
+               goto err_ctrl;
        }
        dev_info(&intf->dev, "software version %d, hardware version %d\n",
                        radio->software_version, radio->hardware_version);
@@ -764,28 +745,30 @@ static int si470x_usb_driver_probe(struct usb_interface *intf,
        radio->buffer = kmalloc(radio->buf_size, GFP_KERNEL);
        if (!radio->buffer) {
                retval = -EIO;
-               goto err_video;
+               goto err_ctrl;
        }
 
        /* rds buffer configuration */
        radio->wr_index = 0;
        radio->rd_index = 0;
        init_waitqueue_head(&radio->read_queue);
+       usb_set_intfdata(intf, radio);
 
        /* register video device */
-       retval = video_register_device(radio->videodev, VFL_TYPE_RADIO,
+       retval = video_register_device(&radio->videodev, VFL_TYPE_RADIO,
                        radio_nr);
        if (retval) {
                dev_warn(&intf->dev, "Could not register video device\n");
                goto err_all;
        }
-       usb_set_intfdata(intf, radio);
 
        return 0;
 err_all:
        kfree(radio->buffer);
-err_video:
-       video_device_release(radio->videodev);
+err_ctrl:
+       v4l2_ctrl_handler_free(&radio->hdl);
+err_dev:
+       v4l2_device_unregister(&radio->v4l2_dev);
 err_urb:
        usb_free_urb(radio->int_in_urb);
 err_intbuffer:
@@ -828,23 +811,10 @@ static void si470x_usb_driver_disconnect(struct usb_interface *intf)
        struct si470x_device *radio = usb_get_intfdata(intf);
 
        mutex_lock(&radio->lock);
-       radio->disconnected = 1;
+       v4l2_device_disconnect(&radio->v4l2_dev);
+       video_unregister_device(&radio->videodev);
        usb_set_intfdata(intf, NULL);
-       if (radio->users == 0) {
-               /* set led to disconnect state */
-               si470x_set_led_state(radio, BLINK_ORANGE_LED);
-
-               /* Free data structures. */
-               usb_free_urb(radio->int_in_urb);
-
-               kfree(radio->int_in_buffer);
-               video_unregister_device(radio->videodev);
-               kfree(radio->buffer);
-               mutex_unlock(&radio->lock);
-               kfree(radio);
-       } else {
-               mutex_unlock(&radio->lock);
-       }
+       mutex_unlock(&radio->lock);
 }
 
 

diff --git a/drivers/media/radio/si470x/radio-si470x.h b/drivers/media/radio/si470x/radio-si470x.h
index f300a55..4921cab 100644 (file)
--- a/drivers/media/radio/si470x/radio-si470x.h
+++ b/drivers/media/radio/si470x/radio-si470x.h
@@ -36,6 +36,9 @@
 #include <linux/mutex.h>
 #include <media/v4l2-common.h>
 #include <media/v4l2-ioctl.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-event.h>
+#include <media/v4l2-device.h>
 #include <asm/unaligned.h>
 
 
@@ -141,10 +144,9 @@
  * si470x_device - private data
  */
 struct si470x_device {
-       struct video_device *videodev;
-
-       /* driver management */
-       unsigned int users;
+       struct v4l2_device v4l2_dev;
+       struct video_device videodev;
+       struct v4l2_ctrl_handler hdl;
 
        /* Silabs internal registers (0..15) */
        unsigned short registers[RADIO_REGISTER_NUM];
@@ -174,9 +176,6 @@ struct si470x_device {
        /* scratch page */
        unsigned char software_version;
        unsigned char hardware_version;
-
-       /* driver management */
-       unsigned char disconnected;
 #endif
 
 #if defined(CONFIG_I2C_SI470X) || defined(CONFIG_I2C_SI470X_MODULE)
@@ -213,6 +212,7 @@ struct si470x_device {
  * Common Functions
  **************************************************************************/
 extern struct video_device si470x_viddev_template;
+extern const struct v4l2_ctrl_ops si470x_ctrl_ops;
 int si470x_get_register(struct si470x_device *radio, int regnr);
 int si470x_set_register(struct si470x_device *radio, int regnr);
 int si470x_disconnect_check(struct si470x_device *radio);