* GNU General Public License for more details.
*/
+#ifndef _V4L2_MC_H
+#define _V4L2_MC_H
+
+#include <media/media-device.h>
+
/**
* enum tuner_pad_index - tuner pad index for MEDIA_ENT_F_TUNER
*
* @TUNER_PAD_RF_INPUT: Radiofrequency (RF) sink pad, usually linked to a
* RF connector entity.
- * @TUNER_PAD_OUTPUT: Tuner output pad. This is actually more complex than
- * a single pad output, as, in addition to luminance and
- * chrominance IF a tuner may have internally an
- * audio decoder (like xc3028) or it may produce an audio
- * IF that will be used by an audio decoder like msp34xx.
- * It may also have an IF-PLL demodulator on it, like
- * tuners with tda9887. Yet, currently, we don't need to
- * represent all the dirty details, as this is transparent
- * for the V4L2 API usage. So, let's represent all kinds
- * of different outputs as a single source pad.
+ * @TUNER_PAD_OUTPUT: Tuner video output source pad. Contains the video
+ * chrominance and luminance or the hole bandwidth
+ * of the signal converted to an Intermediate Frequency
+ * (IF) or to baseband (on zero-IF tuners).
+ * @TUNER_PAD_AUD_OUT: Tuner audio output source pad. Tuners used to decode
+ * analog TV signals have an extra pad for audio output.
+ * Old tuners use an analog stage with a saw filter for
+ * the audio IF frequency. The output of the pad is, in
+ * this case, the audio IF, with should be decoded either
+ * by the bridge chipset (that's the case of cx2388x
+ * chipsets) or may require an external IF sound
+ * processor, like msp34xx. On modern silicon tuners,
+ * the audio IF decoder is usually incorporated at the
+ * tuner. On such case, the output of this pad is an
+ * audio sampled data.
* @TUNER_NUM_PADS: Number of pads of the tuner.
*/
enum tuner_pad_index {
TUNER_PAD_RF_INPUT,
TUNER_PAD_OUTPUT,
+ TUNER_PAD_AUD_OUT,
TUNER_NUM_PADS
-};
\ No newline at end of file
+};
+
+/**
+ * enum if_vid_dec_index - video IF-PLL pad index for
+ * MEDIA_ENT_F_IF_VID_DECODER
+ *
+ * @IF_VID_DEC_PAD_IF_INPUT: video Intermediate Frequency (IF) sink pad
+ * @IF_VID_DEC_PAD_OUT: IF-PLL video output source pad. Contains the
+ * video chrominance and luminance IF signals.
+ * @IF_VID_DEC_PAD_NUM_PADS: Number of pads of the video IF-PLL.
+ */
+enum if_vid_dec_pad_index {
+ IF_VID_DEC_PAD_IF_INPUT,
+ IF_VID_DEC_PAD_OUT,
+ IF_VID_DEC_PAD_NUM_PADS
+};
+
+/**
+ * enum if_aud_dec_index - audio/sound IF-PLL pad index for
+ * MEDIA_ENT_F_IF_AUD_DECODER
+ *
+ * @IF_AUD_DEC_PAD_IF_INPUT: audio Intermediate Frequency (IF) sink pad
+ * @IF_AUD_DEC_PAD_OUT: IF-PLL audio output source pad. Contains the
+ * audio sampled stream data, usually connected
+ * to the bridge bus via an Inter-IC Sound (I2S)
+ * bus.
+ * @IF_AUD_DEC_PAD_NUM_PADS: Number of pads of the audio IF-PLL.
+ */
+enum if_aud_dec_pad_index {
+ IF_AUD_DEC_PAD_IF_INPUT,
+ IF_AUD_DEC_PAD_OUT,
+ IF_AUD_DEC_PAD_NUM_PADS
+};
+
+/**
+ * enum demod_pad_index - analog TV pad index for MEDIA_ENT_F_ATV_DECODER
+ *
+ * @DEMOD_PAD_IF_INPUT: IF input sink pad.
+ * @DEMOD_PAD_VID_OUT: Video output source pad.
+ * @DEMOD_PAD_VBI_OUT: Vertical Blank Interface (VBI) output source pad.
+ * @DEMOD_NUM_PADS: Maximum number of output pads.
+ */
+enum demod_pad_index {
+ DEMOD_PAD_IF_INPUT,
+ DEMOD_PAD_VID_OUT,
+ DEMOD_PAD_VBI_OUT,
+ DEMOD_NUM_PADS
+};
+
+
+struct pci_dev; /* We don't need to include pci.h here */
+
+#ifdef CONFIG_MEDIA_CONTROLLER
+/**
+ * v4l2_mc_create_media_graph() - create Media Controller links at the graph.
+ *
+ * @mdev: pointer to the &media_device struct.
+ *
+ * Add links between the entities commonly found on PC customer's hardware at
+ * the V4L2 side: camera sensors, audio and video PLL-IF decoders, tuners,
+ * analog TV decoder and I/O entities (video, VBI and Software Defined Radio).
+ * NOTE: webcams are modelled on a very simple way: the sensor is
+ * connected directly to the I/O entity. All dirty details, like
+ * scaler and crop HW are hidden. While such mapping is enough for v4l2
+ * interface centric PC-consumer's hardware, V4L2 subdev centric camera
+ * hardware should not use this routine, as it will not build the right graph.
+ */
+int v4l2_mc_create_media_graph(struct media_device *mdev);
+
+/**
+ * v4l2_mc_pci_media_device_init() - create and initialize a
+ * struct &media_device from a PCI device.
+ *
+ * @pci_dev: pointer to struct pci_dev
+ * @name: media device name. If %NULL, the routine will use the default
+ * name for the pci device, given by pci_name() macro.
+ */
+struct media_device *v4l2_mc_pci_media_device_init(struct pci_dev *pci_dev,
+ char *name);
+
+
+#else
+static inline int v4l2_mc_create_media_graph(struct media_device *mdev)
+{
+ return 0;
+}
+
+struct media_device *v4l2_mc_pci_media_device_init(struct pci_dev *pci_dev,
+ char *name) {
+ return NULL;
+}
+
+#endif
+
+#endif
projects / deliverable / linux.git / blobdiff