/drivers/media/video/omap/omap_voutdef.h

  1/*
  2 * omap_voutdef.h
  3 *
  4 * Copyright (C) 2010 Texas Instruments.
  5 *
  6 * This file is licensed under the terms of the GNU General Public License
  7 * version 2. This program is licensed "as is" without any warranty of any
  8 * kind, whether express or implied.
  9 */
 10
 11#ifndef OMAP_VOUTDEF_H
 12#define OMAP_VOUTDEF_H
 13
 14#include <video/omapdss.h>
 15
 16#define YUYV_BPP        2
 17#define RGB565_BPP      2
 18#define RGB24_BPP       3
 19#define RGB32_BPP       4
 20#define TILE_SIZE       32
 21#define YUYV_VRFB_BPP   2
 22#define RGB_VRFB_BPP    1
 23#define MAX_CID		3
 24#define MAC_VRFB_CTXS	4
 25#define MAX_VOUT_DEV	2
 26#define MAX_OVLS	3
 27#define MAX_DISPLAYS	3
 28#define MAX_MANAGERS	3
 29
 30/* Enum for Rotation
 31 * DSS understands rotation in 0, 1, 2, 3 context
 32 * while V4L2 driver understands it as 0, 90, 180, 270
 33 */
 34enum dss_rotation {
 35	dss_rotation_0_degree	= 0,
 36	dss_rotation_90_degree	= 1,
 37	dss_rotation_180_degree	= 2,
 38	dss_rotation_270_degree = 3,
 39};
 40/*
 41 * This structure is used to store the DMA transfer parameters
 42 * for VRFB hidden buffer
 43 */
 44struct vid_vrfb_dma {
 45	int dev_id;
 46	int dma_ch;
 47	int req_status;
 48	int tx_status;
 49	wait_queue_head_t wait;
 50};
 51
 52struct omapvideo_info {
 53	int id;
 54	int num_overlays;
 55	struct omap_overlay *overlays[MAX_OVLS];
 56};
 57
 58struct omap2video_device {
 59	struct mutex  mtx;
 60
 61	int state;
 62
 63	struct v4l2_device v4l2_dev;
 64	struct omap_vout_device *vouts[MAX_VOUT_DEV];
 65
 66	int num_displays;
 67	struct omap_dss_device *displays[MAX_DISPLAYS];
 68	int num_overlays;
 69	struct omap_overlay *overlays[MAX_OVLS];
 70	int num_managers;
 71	struct omap_overlay_manager *managers[MAX_MANAGERS];
 72};
 73
 74/* per-device data structure */
 75struct omap_vout_device {
 76
 77	struct omapvideo_info vid_info;
 78	struct video_device *vfd;
 79	struct omap2video_device *vid_dev;
 80	int vid;
 81	int opened;
 82
 83	/* we don't allow to change image fmt/size once buffer has
 84	 * been allocated
 85	 */
 86	int buffer_allocated;
 87	/* allow to reuse previously allocated buffer which is big enough */
 88	int buffer_size;
 89	/* keep buffer info across opens */
 90	unsigned long buf_virt_addr[VIDEO_MAX_FRAME];
 91	unsigned long buf_phy_addr[VIDEO_MAX_FRAME];
 92	enum omap_color_mode dss_mode;
 93
 94	/* we don't allow to request new buffer when old buffers are
 95	 * still mmaped
 96	 */
 97	int mmap_count;
 98
 99	spinlock_t vbq_lock;		/* spinlock for videobuf queues */
100	unsigned long field_count;	/* field counter for videobuf_buffer */
101
102	/* non-NULL means streaming is in progress. */
103	bool streaming;
104
105	struct v4l2_pix_format pix;
106	struct v4l2_rect crop;
107	struct v4l2_window win;
108	struct v4l2_framebuffer fbuf;
109
110	/* Lock to protect the shared data structures in ioctl */
111	struct mutex lock;
112
113	/* V4L2 control structure for different control id */
114	struct v4l2_control control[MAX_CID];
115	enum dss_rotation rotation;
116	bool mirror;
117	int flicker_filter;
118	/* V4L2 control structure for different control id */
119
120	int bpp; /* bytes per pixel */
121	int vrfb_bpp; /* bytes per pixel with respect to VRFB */
122
123	struct vid_vrfb_dma vrfb_dma_tx;
124	unsigned int smsshado_phy_addr[MAC_VRFB_CTXS];
125	unsigned int smsshado_virt_addr[MAC_VRFB_CTXS];
126	struct vrfb vrfb_context[MAC_VRFB_CTXS];
127	bool vrfb_static_allocation;
128	unsigned int smsshado_size;
129	unsigned char pos;
130
131	int ps, vr_ps, line_length, first_int, field_id;
132	enum v4l2_memory memory;
133	struct videobuf_buffer *cur_frm, *next_frm;
134	struct list_head dma_queue;
135	u8 *queued_buf_addr[VIDEO_MAX_FRAME];
136	u32 cropped_offset;
137	s32 tv_field1_offset;
138	void *isr_handle;
139
140	/* Buffer queue variables */
141	struct omap_vout_device *vout;
142	enum v4l2_buf_type type;
143	struct videobuf_queue vbq;
144	int io_allowed;
145
146};
147#endif	/* ifndef OMAP_VOUTDEF_H */