Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / media / usb / usbtv / usbtv.h

diff --git a/kernel/drivers/media/usb/usbtv/usbtv.h b/kernel/drivers/media/usb/usbtv/usbtv.h
new file mode 100644 (file)
index 0000000..9681195
--- /dev/null
+++ b/kernel/drivers/media/usb/usbtv/usbtv.h
@@ -0,0 +1,118 @@
+/*
+ * Fushicai USBTV007 Audio-Video Grabber Driver
+ *
+ * Copyright (c) 2013 Lubomir Rintel
+ * All rights reserved.
+ * No physical hardware was harmed running Windows during the
+ * reverse-engineering activity
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL").
+ */
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/usb.h>
+
+#include <media/v4l2-device.h>
+#include <media/videobuf2-vmalloc.h>
+
+/* Hardware. */
+#define USBTV_VIDEO_ENDP       0x81
+#define USBTV_AUDIO_ENDP       0x83
+#define USBTV_BASE             0xc000
+#define USBTV_REQUEST_REG      12
+
+/* Number of concurrent isochronous urbs submitted.
+ * Higher numbers was seen to overly saturate the USB bus. */
+#define USBTV_ISOC_TRANSFERS   16
+#define USBTV_ISOC_PACKETS     8
+
+#define USBTV_CHUNK_SIZE       256
+#define USBTV_CHUNK            240
+
+#define USBTV_AUDIO_URBSIZE    20480
+#define USBTV_AUDIO_HDRSIZE    4
+#define USBTV_AUDIO_BUFFER     65536
+
+/* Chunk header. */
+#define USBTV_MAGIC_OK(chunk)  ((be32_to_cpu(chunk[0]) & 0xff000000) \
+                                                       == 0x88000000)
+#define USBTV_FRAME_ID(chunk)  ((be32_to_cpu(chunk[0]) & 0x00ff0000) >> 16)
+#define USBTV_ODD(chunk)       ((be32_to_cpu(chunk[0]) & 0x0000f000) >> 15)
+#define USBTV_CHUNK_NO(chunk)  (be32_to_cpu(chunk[0]) & 0x00000fff)
+
+#define USBTV_TV_STD  (V4L2_STD_525_60 | V4L2_STD_PAL)
+
+/* parameters for supported TV norms */
+struct usbtv_norm_params {
+       v4l2_std_id norm;
+       int cap_width, cap_height;
+};
+
+/* A single videobuf2 frame buffer. */
+struct usbtv_buf {
+       struct vb2_buffer vb;
+       struct list_head list;
+};
+
+/* Per-device structure. */
+struct usbtv {
+       struct device *dev;
+       struct usb_device *udev;
+
+       /* video */
+       struct v4l2_device v4l2_dev;
+       struct video_device vdev;
+       struct vb2_queue vb2q;
+       struct mutex v4l2_lock;
+       struct mutex vb2q_lock;
+
+       /* List of videobuf2 buffers protected by a lock. */
+       spinlock_t buflock;
+       struct list_head bufs;
+
+       /* Number of currently processed frame, useful find
+        * out when a new one begins. */
+       u32 frame_id;
+       int chunks_done;
+
+       enum {
+               USBTV_COMPOSITE_INPUT,
+               USBTV_SVIDEO_INPUT,
+       } input;
+       v4l2_std_id norm;
+       int width, height;
+       int n_chunks;
+       int iso_size;
+       unsigned int sequence;
+       struct urb *isoc_urbs[USBTV_ISOC_TRANSFERS];
+
+       /* audio */
+       struct snd_card *snd;
+       struct snd_pcm_substream *snd_substream;
+       atomic_t snd_stream;
+       struct work_struct snd_trigger;
+       struct urb *snd_bulk_urb;
+       size_t snd_buffer_pos;
+       size_t snd_period_pos;
+};
+
+int usbtv_set_regs(struct usbtv *usbtv, const u16 regs[][2], int size);
+
+int usbtv_video_init(struct usbtv *usbtv);
+void usbtv_video_free(struct usbtv *usbtv);
+
+int usbtv_audio_init(struct usbtv *usbtv);
+void usbtv_audio_free(struct usbtv *usbtv);
+void usbtv_audio_suspend(struct usbtv *usbtv);
+void usbtv_audio_resume(struct usbtv *usbtv);