V4L/DVB (5623): Dsbr100.c Replace usb_dsbr100_do_ioctl to use video_ioctl2

Convert dsbr100 to use video_ioctl2

Signed-off-by:  Douglas Schilling Landgraf <dougsland@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 186 insertions, 159 deletions

diff --git a/drivers/media/radio/dsbr100.c b/drivers/media/radio/dsbr100.c
index 449df1bb00d3..3bd07f7e3774 100644
--- a/drivers/media/radio/dsbr100.c
+++ b/drivers/media/radio/dsbr100.c
@@ -33,6 +33,10 @@
 
  History:
 
+ Version 0.42:
+        Converted dsbr100 to use video_ioctl2
+        by Douglas Landgraf <dougsland@gmail.com>
+
  Version 0.41-ac1:
         Alan Cox: Some cleanups and fixes
 
@@ -121,8 +125,6 @@ devices, that would be 76 and 91.  */
 static int usb_dsbr100_probe(struct usb_interface *intf,
                              const struct usb_device_id *id);
 static void usb_dsbr100_disconnect(struct usb_interface *intf);
-static int usb_dsbr100_ioctl(struct inode *inode, struct file *file,
-                             unsigned int cmd, unsigned long arg);
 static int usb_dsbr100_open(struct inode *inode, struct file *file);
 static int usb_dsbr100_close(struct inode *inode, struct file *file);
 
@@ -142,26 +144,6 @@ struct dsbr100_device {
 };
 
 
-/* File system interface */
-static const struct file_operations usb_dsbr100_fops = {
-        .owner =        THIS_MODULE,
-        .open =         usb_dsbr100_open,
-        .release =      usb_dsbr100_close,
-        .ioctl =        usb_dsbr100_ioctl,
-        .compat_ioctl = v4l_compat_ioctl32,
-        .llseek =       no_llseek,
-};
-
-/* V4L interface */
-static struct video_device dsbr100_videodev_template=
-{
-        .owner =        THIS_MODULE,
-        .name =         "D-Link DSB-R 100",
-        .type =         VID_TYPE_TUNER,
-        .fops =         &usb_dsbr100_fops,
-        .release = video_device_release,
-};
-
 static struct usb_device_id usb_dsbr100_device_table [] = {
         { USB_DEVICE(DSB100_VENDOR, DSB100_PRODUCT) },
         { }                                             /* Terminating entry */
@@ -252,37 +234,6 @@ static void dsbr100_getstat(struct dsbr100_device *radio)
 
 /* USB subsystem interface begins here */
 
-/* check if the device is present and register with v4l and
-usb if it is */
-static int usb_dsbr100_probe(struct usb_interface *intf,
-                         const struct usb_device_id *id)
-{
-        struct dsbr100_device *radio;
-
-        if (!(radio = kmalloc(sizeof(struct dsbr100_device), GFP_KERNEL)))
-                return -ENOMEM;
-        if (!(radio->videodev = video_device_alloc())) {
-                kfree(radio);
-                return -ENOMEM;
-        }
-        memcpy(radio->videodev, &dsbr100_videodev_template,
-                sizeof(dsbr100_videodev_template));
-        radio->removed = 0;
-        radio->users = 0;
-        radio->usbdev = interface_to_usbdev(intf);
-        radio->curfreq = FREQ_MIN*FREQ_MUL;
-        video_set_drvdata(radio->videodev, radio);
-        if (video_register_device(radio->videodev, VFL_TYPE_RADIO,
-                radio_nr)) {
-                warn("Could not register video device");
-                video_device_release(radio->videodev);
-                kfree(radio);
-                return -EIO;
-        }
-        usb_set_intfdata(intf, radio);
-        return 0;
-}
-
 /* handle unplugging of the device, release data structures
 if nothing keeps us from doing it.  If something is still
 keeping us busy, the release callback of v4l will take care
@@ -307,133 +258,147 @@ static void usb_dsbr100_disconnect(struct usb_interface *intf)
 }
 
 
-/* Video for Linux interface */
+static int vidioc_querycap(struct file *file, void *priv,
+                                        struct v4l2_capability *v)
+{
+        strlcpy(v->driver, "dsbr100", sizeof(v->driver));
+        strlcpy(v->card, "D-Link R-100 USB FM Radio", sizeof(v->card));
+        sprintf(v->bus_info, "ISA");
+        v->version = RADIO_VERSION;
+        v->capabilities = V4L2_CAP_TUNER;
+        return 0;
+}
 
-static int usb_dsbr100_do_ioctl(struct inode *inode, struct file *file,
-                                unsigned int cmd, void *arg)
+static int vidioc_g_tuner(struct file *file, void *priv,
+                                struct v4l2_tuner *v)
 {
-        struct dsbr100_device *radio=video_get_drvdata(video_devdata(file));
+        struct dsbr100_device *radio = video_get_drvdata(video_devdata(file));
+
+        if (v->index > 0)
+                return -EINVAL;
+
+        dsbr100_getstat(radio);
+        strcpy(v->name, "FM");
+        v->type = V4L2_TUNER_RADIO;
+        v->rangelow = FREQ_MIN*FREQ_MUL;
+        v->rangehigh = FREQ_MAX*FREQ_MUL;
+        v->rxsubchans = V4L2_TUNER_SUB_MONO|V4L2_TUNER_SUB_STEREO;
+        v->capability = V4L2_TUNER_CAP_LOW;
+        if(radio->stereo)
+                v->audmode = V4L2_TUNER_MODE_STEREO;
+        else
+                v->audmode = V4L2_TUNER_MODE_MONO;
+        v->signal = 0xffff;     /* We can't get the signal strength */
+        return 0;
+}
 
-        if (!radio)
-                return -EIO;
+static int vidioc_s_tuner(struct file *file, void *priv,
+                                struct v4l2_tuner *v)
+{
+        if (v->index > 0)
+                return -EINVAL;
 
-        switch(cmd) {
-                case VIDIOC_QUERYCAP:
-                {
-                        struct v4l2_capability *v = arg;
-                        memset(v,0,sizeof(*v));
-                        strlcpy(v->driver, "dsbr100", sizeof (v->driver));
-                        strlcpy(v->card, "D-Link R-100 USB FM Radio", sizeof (v->card));
-                        sprintf(v->bus_info,"ISA");
-                        v->version = RADIO_VERSION;
-                        v->capabilities = V4L2_CAP_TUNER;
+        return 0;
+}
 
-                        return 0;
-                }
-                case VIDIOC_G_TUNER:
-                {
-                        struct v4l2_tuner *v = arg;
+static int vidioc_s_frequency(struct file *file, void *priv,
+                                struct v4l2_frequency *f)
+{
+        struct dsbr100_device *radio = video_get_drvdata(video_devdata(file));
 
-                        if (v->index > 0)
-                                return -EINVAL;
+        radio->curfreq = f->frequency;
+        if (dsbr100_setfreq(radio, radio->curfreq)==-1)
+                warn("Set frequency failed");
+        return 0;
+}
 
-                        dsbr100_getstat(radio);
+static int vidioc_g_frequency(struct file *file, void *priv,
+                                struct v4l2_frequency *f)
+{
+        struct dsbr100_device *radio = video_get_drvdata(video_devdata(file));
 
-                        memset(v,0,sizeof(*v));
-                        strcpy(v->name, "FM");
-                        v->type = V4L2_TUNER_RADIO;
+        f->type = V4L2_TUNER_RADIO;
+        f->frequency = radio->curfreq;
+        return 0;
+}
 
-                        v->rangelow = FREQ_MIN*FREQ_MUL;
-                        v->rangehigh = FREQ_MAX*FREQ_MUL;
-                        v->rxsubchans =V4L2_TUNER_SUB_MONO|V4L2_TUNER_SUB_STEREO;
-                        v->capability=V4L2_TUNER_CAP_LOW;
-                        if(radio->stereo)
-                                v->audmode = V4L2_TUNER_MODE_STEREO;
-                        else
-                                v->audmode = V4L2_TUNER_MODE_MONO;
-                        v->signal = 0xFFFF;     /* We can't get the signal strength */
+static int vidioc_queryctrl(struct file *file, void *priv,
+                                struct v4l2_queryctrl *qc)
+{
+        int i;
 
+        for (i = 0; i < ARRAY_SIZE(radio_qctrl); i++) {
+                if (qc->id && qc->id == radio_qctrl[i].id) {
+                        memcpy(qc, &(radio_qctrl[i]),
+                                                sizeof(*qc));
                         return 0;
                 }
-                case VIDIOC_S_TUNER:
-                {
-                        struct v4l2_tuner *v = arg;
-
-                        if (v->index > 0)
-                                return -EINVAL;
+        }
+        return -EINVAL;
+}
 
-                        return 0;
-                }
-                case VIDIOC_S_FREQUENCY:
-                {
-                        struct v4l2_frequency *f = arg;
+static int vidioc_g_ctrl(struct file *file, void *priv,
+                                struct v4l2_control *ctrl)
+{
+        struct dsbr100_device *radio = video_get_drvdata(video_devdata(file));
 
-                        radio->curfreq = f->frequency;
-                        if (dsbr100_setfreq(radio, radio->curfreq)==-1)
-                                warn("Set frequency failed");
-                        return 0;
-                }
-                case VIDIOC_G_FREQUENCY:
-                {
-                        struct v4l2_frequency *f = arg;
+        switch (ctrl->id) {
+        case V4L2_CID_AUDIO_MUTE:
+                ctrl->value = radio->muted;
+                return 0;
+        }
+        return -EINVAL;
+}
 
-                        f->type = V4L2_TUNER_RADIO;
-                        f->frequency = radio->curfreq;
+static int vidioc_s_ctrl(struct file *file, void *priv,
+                                struct v4l2_control *ctrl)
+{
+        struct dsbr100_device *radio = video_get_drvdata(video_devdata(file));
 
-                        return 0;
-                }
-                case VIDIOC_QUERYCTRL:
-                {
-                        struct v4l2_queryctrl *qc = arg;
-                        int i;
-
-                        for (i = 0; i < ARRAY_SIZE(radio_qctrl); i++) {
-                                if (qc->id && qc->id == radio_qctrl[i].id) {
-                                        memcpy(qc, &(radio_qctrl[i]),
-                                                                sizeof(*qc));
-                                        return 0;
-                                }
-                        }
-                        return -EINVAL;
-                }
-                case VIDIOC_G_CTRL:
-                {
-                        struct v4l2_control *ctrl= arg;
-
-                        switch (ctrl->id) {
-                        case V4L2_CID_AUDIO_MUTE:
-                                ctrl->value=radio->muted;
-                                return 0;
-                        }
-                        return -EINVAL;
-                }
-                case VIDIOC_S_CTRL:
-                {
-                        struct v4l2_control *ctrl= arg;
-
-                        switch (ctrl->id) {
-                        case V4L2_CID_AUDIO_MUTE:
-                                if (ctrl->value) {
-                                        if (dsbr100_stop(radio)==-1)
-                                                warn("Radio did not respond properly");
-                                } else {
-                                        if (dsbr100_start(radio)==-1)
-                                                warn("Radio did not respond properly");
-                                }
-                                return 0;
-                        }
-                        return -EINVAL;
+        switch (ctrl->id) {
+        case V4L2_CID_AUDIO_MUTE:
+                if (ctrl->value) {
+                        if (dsbr100_stop(radio)==-1)
+                                warn("Radio did not respond properly");
+                } else {
+                        if (dsbr100_start(radio)==-1)
+                                warn("Radio did not respond properly");
                 }
-                default:
-                        return v4l_compat_translate_ioctl(inode,file,cmd,arg,
-                                                          usb_dsbr100_do_ioctl);
+                return 0;
         }
+        return -EINVAL;
 }
 
-static int usb_dsbr100_ioctl(struct inode *inode, struct file *file,
-                             unsigned int cmd, unsigned long arg)
+static int vidioc_g_audio(struct file *file, void *priv,
+                                struct v4l2_audio *a)
 {
-        return video_usercopy(inode, file, cmd, arg, usb_dsbr100_do_ioctl);
+        if (a->index > 1)
+                return -EINVAL;
+
+        strcpy(a->name, "Radio");
+        a->capability = V4L2_AUDCAP_STEREO;
+        return 0;
+}
+
+static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
+{
+        *i = 0;
+        return 0;
+}
+
+static int vidioc_s_input(struct file *filp, void *priv, unsigned int i)
+{
+        if (i != 0)
+                return -EINVAL;
+        return 0;
+}
+
+static int vidioc_s_audio(struct file *file, void *priv,
+                                        struct v4l2_audio *a)
+{
+        if (a->index != 0)
+                return -EINVAL;
+        return 0;
 }
 
 static int usb_dsbr100_open(struct inode *inode, struct file *file)
@@ -465,6 +430,68 @@ static int usb_dsbr100_close(struct inode *inode, struct file *file)
         return 0;
 }
 
+/* File system interface */
+static const struct file_operations usb_dsbr100_fops = {
+        .owner          = THIS_MODULE,
+        .open           = usb_dsbr100_open,
+        .release        = usb_dsbr100_close,
+        .ioctl          = video_ioctl2,
+        .compat_ioctl   = v4l_compat_ioctl32,
+        .llseek         = no_llseek,
+};
+
+/* V4L2 interface */
+static struct video_device dsbr100_videodev_template =
+{
+        .owner          = THIS_MODULE,
+        .name           = "D-Link DSB-R 100",
+        .type           = VID_TYPE_TUNER,
+        .fops           = &usb_dsbr100_fops,
+        .release        = video_device_release,
+        .vidioc_querycap    = vidioc_querycap,
+        .vidioc_g_tuner     = vidioc_g_tuner,
+        .vidioc_s_tuner     = vidioc_s_tuner,
+        .vidioc_g_frequency = vidioc_g_frequency,
+        .vidioc_s_frequency = vidioc_s_frequency,
+        .vidioc_queryctrl   = vidioc_queryctrl,
+        .vidioc_g_ctrl      = vidioc_g_ctrl,
+        .vidioc_s_ctrl      = vidioc_s_ctrl,
+        .vidioc_g_audio     = vidioc_g_audio,
+        .vidioc_s_audio     = vidioc_s_audio,
+        .vidioc_g_input     = vidioc_g_input,
+        .vidioc_s_input     = vidioc_s_input,
+};
+
+/* check if the device is present and register with v4l and
+usb if it is */
+static int usb_dsbr100_probe(struct usb_interface *intf,
+                                const struct usb_device_id *id)
+{
+        struct dsbr100_device *radio;
+
+        if (!(radio = kmalloc(sizeof(struct dsbr100_device), GFP_KERNEL)))
+                return -ENOMEM;
+        if (!(radio->videodev = video_device_alloc())) {
+                kfree(radio);
+                return -ENOMEM;
+        }
+        memcpy(radio->videodev, &dsbr100_videodev_template,
+                sizeof(dsbr100_videodev_template));
+        radio->removed = 0;
+        radio->users = 0;
+        radio->usbdev = interface_to_usbdev(intf);
+        radio->curfreq = FREQ_MIN*FREQ_MUL;
+        video_set_drvdata(radio->videodev, radio);
+        if (video_register_device(radio->videodev, VFL_TYPE_RADIO,radio_nr)) {
+                warn("Could not register video device");
+                video_device_release(radio->videodev);
+                kfree(radio);
+                return -EIO;
+        }
+        usb_set_intfdata(intf, radio);
+        return 0;
+}
+
 static int __init dsbr100_init(void)
 {
         int retval = usb_register(&usb_dsbr100_driver);