Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / media / platform / davinci / vpif_display.h

diff --git a/kernel/drivers/media/platform/davinci/vpif_display.h b/kernel/drivers/media/platform/davinci/vpif_display.h
new file mode 100644 (file)
index 0000000..849e0e3
--- /dev/null
+++ b/kernel/drivers/media/platform/davinci/vpif_display.h
@@ -0,0 +1,127 @@
+/*
+ * VPIF display header file
+ *
+ * Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed .as is. WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef VPIF_DISPLAY_H
+#define VPIF_DISPLAY_H
+
+/* Header files */
+#include <media/videobuf2-dma-contig.h>
+#include <media/v4l2-device.h>
+
+#include "vpif.h"
+
+/* Macros */
+#define VPIF_DISPLAY_VERSION   "0.0.2"
+
+#define VPIF_VALID_FIELD(field) \
+       (((V4L2_FIELD_ANY == field) || (V4L2_FIELD_NONE == field)) || \
+       (((V4L2_FIELD_INTERLACED == field) || (V4L2_FIELD_SEQ_TB == field)) || \
+       (V4L2_FIELD_SEQ_BT == field)))
+
+#define VPIF_DISPLAY_MAX_DEVICES       (2)
+#define VPIF_SLICED_BUF_SIZE           (256)
+#define VPIF_SLICED_MAX_SERVICES       (3)
+#define VPIF_VIDEO_INDEX               (0)
+#define VPIF_VBI_INDEX                 (1)
+#define VPIF_HBI_INDEX                 (2)
+
+/* Setting it to 1 as HBI/VBI support yet to be added , else 3*/
+#define VPIF_NUMOBJECTS        (1)
+
+/* Macros */
+#define ISALIGNED(a)    (0 == ((a) & 7))
+
+/* enumerated data types */
+/* Enumerated data type to give id to each device per channel */
+enum vpif_channel_id {
+       VPIF_CHANNEL2_VIDEO = 0,        /* Channel2 Video */
+       VPIF_CHANNEL3_VIDEO,            /* Channel3 Video */
+};
+
+/* structures */
+
+struct video_obj {
+       enum v4l2_field buf_field;
+       u32 latest_only;                /* indicate whether to return
+                                        * most recent displayed frame only */
+       v4l2_std_id stdid;              /* Currently selected or default
+                                        * standard */
+       struct v4l2_dv_timings dv_timings;
+};
+
+struct vpif_disp_buffer {
+       struct vb2_buffer vb;
+       struct list_head list;
+};
+
+struct common_obj {
+       struct vpif_disp_buffer *cur_frm;       /* Pointer pointing to current
+                                                * vb2_buffer */
+       struct vpif_disp_buffer *next_frm;      /* Pointer pointing to next
+                                                * vb2_buffer */
+       struct v4l2_format fmt;                 /* Used to store the format */
+       struct vb2_queue buffer_queue;          /* Buffer queue used in
+                                                * video-buf */
+       /* allocator-specific contexts for each plane */
+       struct vb2_alloc_ctx *alloc_ctx;
+
+       struct list_head dma_queue;             /* Queue of filled frames */
+       spinlock_t irqlock;                     /* Used in video-buf */
+
+       /* channel specific parameters */
+       struct mutex lock;                      /* lock used to access this
+                                                * structure */
+       u32 ytop_off;                           /* offset of Y top from the
+                                                * starting of the buffer */
+       u32 ybtm_off;                           /* offset of Y bottom from the
+                                                * starting of the buffer */
+       u32 ctop_off;                           /* offset of C top from the
+                                                * starting of the buffer */
+       u32 cbtm_off;                           /* offset of C bottom from the
+                                                * starting of the buffer */
+       /* Function pointer to set the addresses */
+       void (*set_addr)(unsigned long, unsigned long,
+                               unsigned long, unsigned long);
+       u32 height;
+       u32 width;
+};
+
+struct channel_obj {
+       /* V4l2 specific parameters */
+       struct video_device video_dev;  /* Identifies video device for
+                                        * this channel */
+       u32 field_id;                   /* Indicates id of the field
+                                        * which is being displayed */
+       u8 initialized;                 /* flag to indicate whether
+                                        * encoder is initialized */
+       u32 output_idx;                 /* Current output index */
+       struct v4l2_subdev *sd;         /* Current output subdev(may be NULL) */
+
+       enum vpif_channel_id channel_id;/* Identifies channel */
+       struct vpif_params vpifparams;
+       struct common_obj common[VPIF_NUMOBJECTS];
+       struct video_obj video;
+};
+
+/* vpif device structure */
+struct vpif_device {
+       struct v4l2_device v4l2_dev;
+       struct channel_obj *dev[VPIF_DISPLAY_NUM_CHANNELS];
+       struct v4l2_subdev **sd;
+       struct v4l2_async_notifier notifier;
+       struct vpif_display_config *config;
+};
+
+#endif                         /* VPIF_DISPLAY_H */