V4L/DVB (6956): Add Radio support for em28xx
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>hifive-unleashed-5.1
Mauro Carvalho Chehab
parent
3abee53e44
commit
0be4375410
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@ -61,13 +61,17 @@ static LIST_HEAD(em28xx_devlist);
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static unsigned int card[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = UNSET };
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static unsigned int video_nr[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = UNSET };
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static unsigned int vbi_nr[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = UNSET };
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static unsigned int vbi_nr[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = UNSET };
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static unsigned int radio_nr[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = UNSET };
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module_param_array(card, int, NULL, 0444);
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module_param_array(video_nr, int, NULL, 0444);
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module_param_array(vbi_nr, int, NULL, 0444);
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MODULE_PARM_DESC(card,"card type");
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MODULE_PARM_DESC(video_nr,"video device numbers");
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MODULE_PARM_DESC(vbi_nr,"vbi device numbers");
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module_param_array(radio_nr, int, NULL, 0444);
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MODULE_PARM_DESC(card, "card type");
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MODULE_PARM_DESC(video_nr, "video device numbers");
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MODULE_PARM_DESC(vbi_nr, "vbi device numbers");
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MODULE_PARM_DESC(radio_nr, "radio device numbers");
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static unsigned int video_debug = 0;
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module_param(video_debug,int,0644);
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@ -791,7 +795,7 @@ static int vidioc_g_frequency(struct file *file, void *priv,
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struct em28xx_fh *fh = priv;
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struct em28xx *dev = fh->dev;
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f->type = V4L2_TUNER_ANALOG_TV;
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f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
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f->frequency = dev->ctl_freq;
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return 0;
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@ -811,7 +815,9 @@ static int vidioc_s_frequency(struct file *file, void *priv,
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if (0 != f->tuner)
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return -EINVAL;
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if (V4L2_TUNER_ANALOG_TV != f->type)
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if (unlikely(0 == fh->radio && f->type != V4L2_TUNER_ANALOG_TV))
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return -EINVAL;
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if (unlikely(1 == fh->radio && f->type != V4L2_TUNER_RADIO))
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return -EINVAL;
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mutex_lock(&dev->lock);
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@ -1148,6 +1154,102 @@ static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
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return 0;
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}
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/* ----------------------------------------------------------- */
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/* RADIO ESPECIFIC IOCTLS */
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/* ----------------------------------------------------------- */
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static int radio_querycap(struct file *file, void *priv,
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struct v4l2_capability *cap)
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{
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struct em28xx *dev = ((struct em28xx_fh *)priv)->dev;
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strlcpy(cap->driver, "em28xx", sizeof(cap->driver));
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strlcpy(cap->card, em28xx_boards[dev->model].name, sizeof(cap->card));
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strlcpy(cap->bus_info, dev->udev->dev.bus_id, sizeof(cap->bus_info));
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cap->version = EM28XX_VERSION_CODE;
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cap->capabilities = V4L2_CAP_TUNER;
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return 0;
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}
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static int radio_g_tuner(struct file *file, void *priv,
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struct v4l2_tuner *t)
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{
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struct em28xx *dev = ((struct em28xx_fh *)priv)->dev;
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if (unlikely(t->index > 0))
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return -EINVAL;
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strcpy(t->name, "Radio");
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t->type = V4L2_TUNER_RADIO;
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em28xx_i2c_call_clients(dev, VIDIOC_G_TUNER, t);
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return 0;
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}
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static int radio_enum_input(struct file *file, void *priv,
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struct v4l2_input *i)
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{
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if (i->index != 0)
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return -EINVAL;
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strcpy(i->name, "Radio");
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i->type = V4L2_INPUT_TYPE_TUNER;
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return 0;
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}
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static int radio_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
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{
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if (unlikely(a->index))
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return -EINVAL;
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strcpy(a->name, "Radio");
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return 0;
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}
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static int radio_s_tuner(struct file *file, void *priv,
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struct v4l2_tuner *t)
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{
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struct em28xx *dev = ((struct em28xx_fh *)priv)->dev;
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if (0 != t->index)
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return -EINVAL;
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em28xx_i2c_call_clients(dev, VIDIOC_S_TUNER, t);
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return 0;
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}
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static int radio_s_audio(struct file *file, void *fh,
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struct v4l2_audio *a)
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{
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return 0;
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}
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static int radio_s_input(struct file *file, void *fh, unsigned int i)
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{
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return 0;
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}
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static int radio_queryctrl(struct file *file, void *priv,
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struct v4l2_queryctrl *qc)
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{
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int i;
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if (qc->id < V4L2_CID_BASE ||
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qc->id >= V4L2_CID_LASTP1)
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return -EINVAL;
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for (i = 0; i < ARRAY_SIZE(em28xx_qctrl); i++) {
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if (qc->id && qc->id == em28xx_qctrl[i].id) {
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memcpy(qc, &(em28xx_qctrl[i]), sizeof(*qc));
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return 0;
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}
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}
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return -EINVAL;
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}
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/*
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* em28xx_v4l2_open()
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* inits the device and starts isoc transfer
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@ -1155,7 +1257,7 @@ static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
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static int em28xx_v4l2_open(struct inode *inode, struct file *filp)
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{
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int minor = iminor(inode);
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int errCode = 0;
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int errCode = 0, radio = 0;
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struct em28xx *h,*dev = NULL;
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struct em28xx_fh *fh;
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@ -1168,6 +1270,11 @@ static int em28xx_v4l2_open(struct inode *inode, struct file *filp)
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dev = h;
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dev->type = V4L2_BUF_TYPE_VBI_CAPTURE;
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}
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if (h->radio_dev &&
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h->radio_dev->minor == minor) {
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radio = 1;
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dev = h;
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}
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}
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if (NULL == dev)
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return -ENODEV;
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@ -1183,6 +1290,7 @@ static int em28xx_v4l2_open(struct inode *inode, struct file *filp)
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}
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mutex_lock(&dev->lock);
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fh->dev = dev;
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fh->radio = radio;
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filp->private_data = fh;
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if (dev->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && dev->users == 0) {
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@ -1207,6 +1315,10 @@ static int em28xx_v4l2_open(struct inode *inode, struct file *filp)
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em28xx_empty_framequeues(dev);
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}
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if (fh->radio) {
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em28xx_videodbg("video_open: setting radio device\n");
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em28xx_i2c_call_clients(dev, AUDC_SET_RADIO, NULL);
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}
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dev->users++;
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@ -1229,12 +1341,30 @@ static void em28xx_release_resources(struct em28xx *dev)
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dev->vdev->minor-MINOR_VFL_TYPE_GRABBER_MIN,
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dev->vbi_dev->minor-MINOR_VFL_TYPE_VBI_MIN);
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list_del(&dev->devlist);
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video_unregister_device(dev->vdev);
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video_unregister_device(dev->vbi_dev);
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if (dev->radio_dev) {
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if (-1 != dev->radio_dev->minor)
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video_unregister_device(dev->radio_dev);
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else
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video_device_release(dev->radio_dev);
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dev->radio_dev = NULL;
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}
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if (dev->vbi_dev) {
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if (-1 != dev->vbi_dev->minor)
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video_unregister_device(dev->vbi_dev);
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else
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video_device_release(dev->vbi_dev);
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dev->vbi_dev = NULL;
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}
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if (dev->vdev) {
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if (-1 != dev->vdev->minor)
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video_unregister_device(dev->vdev);
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else
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video_device_release(dev->vdev);
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dev->vdev = NULL;
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}
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em28xx_i2c_unregister(dev);
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usb_put_dev(dev->udev);
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/* Mark device as unused */
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em28xx_devused&=~(1<<dev->devno);
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}
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@ -1555,6 +1685,15 @@ static const struct file_operations em28xx_v4l_fops = {
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.compat_ioctl = v4l_compat_ioctl32,
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};
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static const struct file_operations radio_fops = {
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.owner = THIS_MODULE,
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.open = em28xx_v4l2_open,
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.release = em28xx_v4l2_close,
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.ioctl = video_ioctl2,
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.compat_ioctl = v4l_compat_ioctl32,
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.llseek = no_llseek,
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};
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static const struct video_device em28xx_video_template = {
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.fops = &em28xx_v4l_fops,
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.release = video_device_release,
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@ -1595,6 +1734,25 @@ static const struct video_device em28xx_video_template = {
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.current_norm = V4L2_STD_PAL,
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};
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static struct video_device em28xx_radio_template = {
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.name = "em28xx-radio",
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.type = VID_TYPE_TUNER,
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.fops = &radio_fops,
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.minor = -1,
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.vidioc_querycap = radio_querycap,
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.vidioc_g_tuner = radio_g_tuner,
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.vidioc_enum_input = radio_enum_input,
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.vidioc_g_audio = radio_g_audio,
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.vidioc_s_tuner = radio_s_tuner,
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.vidioc_s_audio = radio_s_audio,
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.vidioc_s_input = radio_s_input,
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.vidioc_queryctrl = radio_queryctrl,
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.vidioc_g_ctrl = vidioc_g_ctrl,
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.vidioc_s_ctrl = vidioc_s_ctrl,
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.vidioc_g_frequency = vidioc_g_frequency,
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.vidioc_s_frequency = vidioc_s_frequency,
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};
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/******************************** usb interface *****************************************/
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@ -1637,6 +1795,29 @@ void em28xx_unregister_extension(struct em28xx_ops *ops)
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}
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EXPORT_SYMBOL(em28xx_unregister_extension);
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struct video_device *em28xx_vdev_init(struct em28xx *dev,
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const struct video_device *template,
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const int type,
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const char *type_name)
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{
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struct video_device *vfd;
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vfd = video_device_alloc();
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if (NULL == vfd)
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return NULL;
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*vfd = *template;
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vfd->minor = -1;
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vfd->dev = &dev->udev->dev;
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vfd->release = video_device_release;
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vfd->type = type;
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snprintf(vfd->name, sizeof(vfd->name), "%s %s",
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dev->name, type_name);
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return vfd;
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}
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/*
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* em28xx_init_dev()
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* allocates and inits the device structs, registers i2c bus and v4l device
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@ -1710,40 +1891,55 @@ static int em28xx_init_dev(struct em28xx **devhandle, struct usb_device *udev,
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errCode = em28xx_config(dev);
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list_add_tail(&dev->devlist, &em28xx_devlist);
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/* allocate and fill video video_device struct */
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dev->vdev = video_device_alloc();
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dev->vdev = em28xx_vdev_init(dev, &em28xx_video_template,
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VID_TYPE_CAPTURE, "video");
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if (NULL == dev->vdev) {
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em28xx_errdev("cannot allocate video_device.\n");
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em28xx_devused&=~(1<<dev->devno);
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kfree(dev);
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return -ENOMEM;
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goto fail_unreg;
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}
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memcpy(dev->vdev, &em28xx_video_template,
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sizeof(em28xx_video_template));
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dev->vdev->type = VID_TYPE_CAPTURE;
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if (dev->has_tuner)
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dev->vdev->type |= VID_TYPE_TUNER;
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dev->vdev->dev = &dev->udev->dev;
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snprintf(dev->vdev->name, sizeof(dev->vbi_dev->name),
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"%s#%d %s", "em28xx", dev->devno, "video");
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/* register v4l2 video video_device */
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retval = video_register_device(dev->vdev, VFL_TYPE_GRABBER,
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video_nr[dev->devno]);
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if (retval) {
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em28xx_errdev("unable to register video device (error=%i).\n",
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retval);
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goto fail_unreg;
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}
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/* Allocate and fill vbi video_device struct */
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dev->vbi_dev = video_device_alloc();
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if (NULL == dev->vbi_dev) {
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em28xx_errdev("cannot allocate video_device.\n");
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kfree(dev->vdev);
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em28xx_devused&=~(1<<dev->devno);
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kfree(dev);
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return -ENOMEM;
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dev->vbi_dev = em28xx_vdev_init(dev, &em28xx_video_template,
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VFL_TYPE_VBI, "vbi");
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/* register v4l2 vbi video_device */
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if (video_register_device(dev->vbi_dev, VFL_TYPE_VBI,
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vbi_nr[dev->devno]) < 0) {
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em28xx_errdev("unable to register vbi device\n");
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retval = -ENODEV;
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goto fail_unreg;
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}
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if (em28xx_boards[dev->model].radio.type == EM28XX_RADIO) {
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dev->radio_dev = em28xx_vdev_init(dev, &em28xx_radio_template,
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VFL_TYPE_RADIO, "radio");
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if (NULL == dev->radio_dev) {
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em28xx_errdev("cannot allocate video_device.\n");
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goto fail_unreg;
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}
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retval = video_register_device(dev->radio_dev, VFL_TYPE_RADIO,
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radio_nr[dev->devno]);
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if (retval < 0) {
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em28xx_errdev("can't register radio device\n");
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goto fail_unreg;
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}
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em28xx_info("Registered radio device as /dev/radio%d\n",
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dev->radio_dev->minor & 0x1f);
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}
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memcpy(dev->vbi_dev, &em28xx_video_template,
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sizeof(em28xx_video_template));
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dev->vbi_dev->type = VFL_TYPE_VBI;
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dev->vbi_dev->dev = &dev->udev->dev;
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snprintf(dev->vbi_dev->name, sizeof(dev->vbi_dev->name),
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"%s#%d %s", "em28xx", dev->devno, "vbi");
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list_add_tail(&dev->devlist,&em28xx_devlist);
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if (dev->has_msp34xx) {
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/* Send a reset to other chips via gpio */
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@ -1755,32 +1951,6 @@ static int em28xx_init_dev(struct em28xx **devhandle, struct usb_device *udev,
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video_mux(dev, 0);
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/* register v4l2 video video_device */
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if ((retval = video_register_device(dev->vdev, VFL_TYPE_GRABBER,
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video_nr[dev->devno]))) {
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em28xx_errdev("unable to register video device (error=%i).\n",
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retval);
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mutex_unlock(&dev->lock);
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list_del(&dev->devlist);
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video_device_release(dev->vdev);
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em28xx_devused&=~(1<<dev->devno);
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kfree(dev);
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return -ENODEV;
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}
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/* register v4l2 vbi video_device */
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if (video_register_device(dev->vbi_dev, VFL_TYPE_VBI,
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vbi_nr[dev->devno]) < 0) {
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printk("unable to register vbi device\n");
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mutex_unlock(&dev->lock);
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list_del(&dev->devlist);
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video_device_release(dev->vbi_dev);
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video_device_release(dev->vdev);
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em28xx_devused&=~(1<<dev->devno);
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kfree(dev);
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return -ENODEV;
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}
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em28xx_info("V4L2 device registered as /dev/video%d and /dev/vbi%d\n",
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dev->vdev->minor-MINOR_VFL_TYPE_GRABBER_MIN,
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dev->vbi_dev->minor-MINOR_VFL_TYPE_VBI_MIN);
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@ -1795,6 +1965,12 @@ static int em28xx_init_dev(struct em28xx **devhandle, struct usb_device *udev,
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mutex_unlock(&em28xx_extension_devlist_lock);
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return 0;
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fail_unreg:
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em28xx_release_resources(dev);
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mutex_unlock(&dev->lock);
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kfree(dev);
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return retval;
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}
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#if defined(CONFIG_MODULES) && defined(MODULE)
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@ -191,6 +191,7 @@ struct em28xx_board {
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enum em28xx_decoder decoder;
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struct em28xx_input input[MAX_EM28XX_INPUT];
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struct em28xx_input radio;
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};
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struct em28xx_eeprom {
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@ -307,6 +308,7 @@ struct em28xx {
|
|||
struct list_head inqueue, outqueue;
|
||||
wait_queue_head_t open, wait_frame, wait_stream;
|
||||
struct video_device *vbi_dev;
|
||||
struct video_device *radio_dev;
|
||||
|
||||
unsigned char eedata[256];
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue