diff options
Diffstat (limited to 'drivers/media/usb/au0828/au0828-core.c')
| -rw-r--r-- | drivers/media/usb/au0828/au0828-core.c | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/drivers/media/usb/au0828/au0828-core.c b/drivers/media/usb/au0828/au0828-core.c index 0934024fb89d..9e29e70a78d7 100644 --- a/drivers/media/usb/au0828/au0828-core.c +++ b/drivers/media/usb/au0828/au0828-core.c @@ -27,6 +27,9 @@ #include <media/v4l2-common.h> #include <linux/mutex.h> +/* Due to enum tuner_pad_index */ +#include <media/tuner.h> + /* * 1 = General debug messages * 2 = USB handling @@ -127,8 +130,23 @@ static int recv_control_msg(struct au0828_dev *dev, u16 request, u32 value, return status; } +static void au0828_unregister_media_device(struct au0828_dev *dev) +{ + +#ifdef CONFIG_MEDIA_CONTROLLER + if (dev->media_dev) { + media_device_unregister(dev->media_dev); + media_device_cleanup(dev->media_dev); + kfree(dev->media_dev); + dev->media_dev = NULL; + } +#endif +} + static void au0828_usb_release(struct au0828_dev *dev) { + au0828_unregister_media_device(dev); + /* I2C */ au0828_i2c_unregister(dev); @@ -136,6 +154,20 @@ static void au0828_usb_release(struct au0828_dev *dev) } #ifdef CONFIG_VIDEO_AU0828_V4L2 + +static void au0828_usb_v4l2_media_release(struct au0828_dev *dev) +{ +#ifdef CONFIG_MEDIA_CONTROLLER + int i; + + for (i = 0; i < AU0828_MAX_INPUT; i++) { + if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED) + return; + media_device_unregister_entity(&dev->input_ent[i]); + } +#endif +} + static void au0828_usb_v4l2_release(struct v4l2_device *v4l2_dev) { struct au0828_dev *dev = @@ -143,6 +175,7 @@ static void au0828_usb_v4l2_release(struct v4l2_device *v4l2_dev) v4l2_ctrl_handler_free(&dev->v4l2_ctrl_hdl); v4l2_device_unregister(&dev->v4l2_dev); + au0828_usb_v4l2_media_release(dev); au0828_usb_release(dev); } #endif @@ -174,12 +207,123 @@ static void au0828_usb_disconnect(struct usb_interface *interface) au0828_analog_unregister(dev); v4l2_device_disconnect(&dev->v4l2_dev); v4l2_device_put(&dev->v4l2_dev); + /* + * No need to call au0828_usb_release() if V4L2 is enabled, + * as this is already called via au0828_usb_v4l2_release() + */ return; } #endif au0828_usb_release(dev); } +static int au0828_media_device_init(struct au0828_dev *dev, + struct usb_device *udev) +{ +#ifdef CONFIG_MEDIA_CONTROLLER + struct media_device *mdev; + + mdev = kzalloc(sizeof(*mdev), GFP_KERNEL); + if (!mdev) + return -ENOMEM; + + mdev->dev = &udev->dev; + + if (!dev->board.name) + strlcpy(mdev->model, "unknown au0828", sizeof(mdev->model)); + else + strlcpy(mdev->model, dev->board.name, sizeof(mdev->model)); + if (udev->serial) + strlcpy(mdev->serial, udev->serial, sizeof(mdev->serial)); + strcpy(mdev->bus_info, udev->devpath); + mdev->hw_revision = le16_to_cpu(udev->descriptor.bcdDevice); + mdev->driver_version = LINUX_VERSION_CODE; + + media_device_init(mdev); + + dev->media_dev = mdev; +#endif + return 0; +} + + +static int au0828_create_media_graph(struct au0828_dev *dev) +{ +#ifdef CONFIG_MEDIA_CONTROLLER + struct media_device *mdev = dev->media_dev; + struct media_entity *entity; + struct media_entity *tuner = NULL, *decoder = NULL; + int i, ret; + + if (!mdev) + return 0; + + media_device_for_each_entity(entity, mdev) { + switch (entity->function) { + case MEDIA_ENT_F_TUNER: + tuner = entity; + break; + case MEDIA_ENT_F_ATV_DECODER: + decoder = entity; + break; + } + } + + /* Analog setup, using tuner as a link */ + + /* Something bad happened! */ + if (!decoder) + return -EINVAL; + + if (tuner) { + ret = media_create_pad_link(tuner, TUNER_PAD_IF_OUTPUT, + decoder, 0, + MEDIA_LNK_FL_ENABLED); + if (ret) + return ret; + } + ret = media_create_pad_link(decoder, 1, &dev->vdev.entity, 0, + MEDIA_LNK_FL_ENABLED); + if (ret) + return ret; + ret = media_create_pad_link(decoder, 2, &dev->vbi_dev.entity, 0, + MEDIA_LNK_FL_ENABLED); + if (ret) + return ret; + + for (i = 0; i < AU0828_MAX_INPUT; i++) { + struct media_entity *ent = &dev->input_ent[i]; + + if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED) + break; + + switch (AUVI_INPUT(i).type) { + case AU0828_VMUX_CABLE: + case AU0828_VMUX_TELEVISION: + case AU0828_VMUX_DVB: + if (!tuner) + break; + + ret = media_create_pad_link(ent, 0, tuner, + TUNER_PAD_RF_INPUT, + MEDIA_LNK_FL_ENABLED); + if (ret) + return ret; + break; + case AU0828_VMUX_COMPOSITE: + case AU0828_VMUX_SVIDEO: + default: /* AU0828_VMUX_DEBUG */ + /* FIXME: fix the decoder PAD */ + ret = media_create_pad_link(ent, 0, decoder, 0, 0); + if (ret) + return ret; + break; + } + } +#endif + return 0; +} + static int au0828_usb_probe(struct usb_interface *interface, const struct usb_device_id *id) { @@ -224,11 +368,23 @@ static int au0828_usb_probe(struct usb_interface *interface, dev->boardnr = id->driver_info; dev->board = au0828_boards[dev->boardnr]; + /* Initialize the media controller */ + retval = au0828_media_device_init(dev, usbdev); + if (retval) { + pr_err("%s() au0828_media_device_init failed\n", + __func__); + mutex_unlock(&dev->lock); + kfree(dev); + return retval; + } #ifdef CONFIG_VIDEO_AU0828_V4L2 dev->v4l2_dev.release = au0828_usb_v4l2_release; /* Create the v4l2_device */ +#ifdef CONFIG_MEDIA_CONTROLLER + dev->v4l2_dev.mdev = dev->media_dev; +#endif retval = v4l2_device_register(&interface->dev, &dev->v4l2_dev); if (retval) { pr_err("%s() v4l2_device_register failed\n", @@ -287,6 +443,21 @@ static int au0828_usb_probe(struct usb_interface *interface, mutex_unlock(&dev->lock); + retval = au0828_create_media_graph(dev); + if (retval) { + pr_err("%s() au0282_dev_register failed to create graph\n", + __func__); + goto done; + } + +#ifdef CONFIG_MEDIA_CONTROLLER + retval = media_device_register(dev->media_dev); +#endif + +done: + if (retval < 0) + au0828_usb_disconnect(interface); + return retval; } |