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Diffstat (limited to 'include/media/davinci/vpbe_display.h')
| -rw-r--r-- | include/media/davinci/vpbe_display.h | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/include/media/davinci/vpbe_display.h b/include/media/davinci/vpbe_display.h new file mode 100644 index 0000000..dbf6b37 --- /dev/null +++ b/include/media/davinci/vpbe_display.h @@ -0,0 +1,147 @@ +/* + * Copyright (C) 2010 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 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 VPBE_DISPLAY_H +#define VPBE_DISPLAY_H + +/* Header files */ +#include <linux/videodev2.h> +#include <media/v4l2-common.h> +#include <media/videobuf-dma-contig.h> +#include <media/davinci/vpbe_types.h> +#include <media/davinci/vpbe_osd.h> +#include <media/davinci/vpbe.h> + +#define VPBE_DISPLAY_MAX_DEVICES 2 + +enum vpbe_display_device_id { + VPBE_DISPLAY_DEVICE_0, + VPBE_DISPLAY_DEVICE_1 +}; + +#define VPBE_DISPLAY_DRV_NAME "vpbe-display" + +#define VPBE_DISPLAY_MAJOR_RELEASE 1 +#define VPBE_DISPLAY_MINOR_RELEASE 0 +#define VPBE_DISPLAY_BUILD 1 +#define VPBE_DISPLAY_VERSION_CODE ((VPBE_DISPLAY_MAJOR_RELEASE << 16) | \ + (VPBE_DISPLAY_MINOR_RELEASE << 8) | \ + VPBE_DISPLAY_BUILD) + +#define VPBE_DISPLAY_VALID_FIELD(field) ((V4L2_FIELD_NONE == field) || \ + (V4L2_FIELD_ANY == field) || (V4L2_FIELD_INTERLACED == field)) + +/* Exp ratio numerator and denominator constants */ +#define VPBE_DISPLAY_H_EXP_RATIO_N 9 +#define VPBE_DISPLAY_H_EXP_RATIO_D 8 +#define VPBE_DISPLAY_V_EXP_RATIO_N 6 +#define VPBE_DISPLAY_V_EXP_RATIO_D 5 + +/* Zoom multiplication factor */ +#define VPBE_DISPLAY_ZOOM_4X 4 +#define VPBE_DISPLAY_ZOOM_2X 2 + +/* Structures */ +struct display_layer_info { + int enable; + /* Layer ID used by Display Manager */ + enum osd_layer id; + struct osd_layer_config config; + enum osd_zoom_factor h_zoom; + enum osd_zoom_factor v_zoom; + enum osd_h_exp_ratio h_exp; + enum osd_v_exp_ratio v_exp; +}; + +/* vpbe display object structure */ +struct vpbe_layer { + /* number of buffers in fbuffers */ + unsigned int numbuffers; + /* Pointer to the vpbe_display */ + struct vpbe_display *disp_dev; + /* Pointer pointing to current v4l2_buffer */ + struct videobuf_buffer *cur_frm; + /* Pointer pointing to next v4l2_buffer */ + struct videobuf_buffer *next_frm; + /* videobuf specific parameters + * Buffer queue used in video-buf + */ + struct videobuf_queue buffer_queue; + /* Queue of filled frames */ + struct list_head dma_queue; + /* Used in video-buf */ + spinlock_t irqlock; + /* V4l2 specific parameters */ + /* Identifies video device for this layer */ + struct video_device video_dev; + /* This field keeps track of type of buffer exchange mechanism user + * has selected + */ + enum v4l2_memory memory; + /* Used to keep track of state of the priority */ + struct v4l2_prio_state prio; + /* Used to store pixel format */ + struct v4l2_pix_format pix_fmt; + enum v4l2_field buf_field; + /* Video layer configuration params */ + struct display_layer_info layer_info; + /* vpbe specific parameters + * enable window for display + */ + unsigned char window_enable; + /* number of open instances of the layer */ + unsigned int usrs; + /* number of users performing IO */ + unsigned int io_usrs; + /* Indicates id of the field which is being displayed */ + unsigned int field_id; + /* Indicates whether streaming started */ + unsigned char started; + /* Identifies device object */ + enum vpbe_display_device_id device_id; + /* facilitation of ioctl ops lock by v4l2*/ + struct mutex opslock; + u8 layer_first_int; +}; + +/* vpbe device structure */ +struct vpbe_display { + /* layer specific parameters */ + /* lock for isr updates to buf layers*/ + spinlock_t dma_queue_lock; + /* C-Plane offset from start of y-plane */ + unsigned int cbcr_ofst; + struct vpbe_layer *dev[VPBE_DISPLAY_MAX_DEVICES]; + struct vpbe_device *vpbe_dev; + struct osd_state *osd_device; +}; + +/* File handle structure */ +struct vpbe_fh { + /* vpbe device structure */ + struct vpbe_display *disp_dev; + /* pointer to layer object for opened device */ + struct vpbe_layer *layer; + /* Indicates whether this file handle is doing IO */ + unsigned char io_allowed; + /* Used to keep track priority of this instance */ + enum v4l2_priority prio; +}; + +struct buf_config_params { + unsigned char min_numbuffers; + unsigned char numbuffers[VPBE_DISPLAY_MAX_DEVICES]; + unsigned int min_bufsize[VPBE_DISPLAY_MAX_DEVICES]; + unsigned int layer_bufsize[VPBE_DISPLAY_MAX_DEVICES]; +}; + +#endif /* VPBE_DISPLAY_H */ |