187 строки
4.8 KiB
C
187 строки
4.8 KiB
C
/*
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* Copyright (C) 2008-2009 Texas Instruments Inc
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef _VPFE_CAPTURE_H
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#define _VPFE_CAPTURE_H
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#ifdef __KERNEL__
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/* Header files */
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#include <media/v4l2-dev.h>
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#include <linux/videodev2.h>
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#include <linux/clk.h>
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#include <linux/i2c.h>
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#include <media/v4l2-fh.h>
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#include <media/v4l2-ioctl.h>
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#include <media/v4l2-device.h>
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#include <media/videobuf-dma-contig.h>
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#include <media/davinci/vpfe_types.h>
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#define VPFE_CAPTURE_NUM_DECODERS 5
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/* Macros */
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#define VPFE_MAJOR_RELEASE 0
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#define VPFE_MINOR_RELEASE 0
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#define VPFE_BUILD 1
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#define VPFE_CAPTURE_VERSION_CODE ((VPFE_MAJOR_RELEASE << 16) | \
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(VPFE_MINOR_RELEASE << 8) | \
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VPFE_BUILD)
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#define CAPTURE_DRV_NAME "vpfe-capture"
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struct vpfe_pixel_format {
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struct v4l2_fmtdesc fmtdesc;
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/* bytes per pixel */
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int bpp;
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};
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struct vpfe_std_info {
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int active_pixels;
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int active_lines;
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/* current frame format */
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int frame_format;
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};
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struct vpfe_route {
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u32 input;
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u32 output;
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};
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struct vpfe_subdev_info {
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/* Sub device name */
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char name[32];
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/* Sub device group id */
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int grp_id;
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/* Number of inputs supported */
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int num_inputs;
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/* inputs available at the sub device */
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struct v4l2_input *inputs;
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/* Sub dev routing information for each input */
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struct vpfe_route *routes;
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/* check if sub dev supports routing */
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int can_route;
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/* ccdc bus/interface configuration */
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struct vpfe_hw_if_param ccdc_if_params;
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/* i2c subdevice board info */
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struct i2c_board_info board_info;
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};
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struct vpfe_config {
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/* Number of sub devices connected to vpfe */
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int num_subdevs;
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/* i2c bus adapter no */
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int i2c_adapter_id;
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/* information about each subdev */
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struct vpfe_subdev_info *sub_devs;
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/* evm card info */
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char *card_name;
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/* ccdc name */
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char *ccdc;
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/* vpfe clock */
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struct clk *vpssclk;
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struct clk *slaveclk;
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/* Function for Clearing the interrupt */
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void (*clr_intr)(int vdint);
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};
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struct vpfe_device {
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/* V4l2 specific parameters */
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/* Identifies video device for this channel */
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struct video_device video_dev;
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/* sub devices */
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struct v4l2_subdev **sd;
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/* vpfe cfg */
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struct vpfe_config *cfg;
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/* V4l2 device */
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struct v4l2_device v4l2_dev;
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/* parent device */
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struct device *pdev;
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/* number of open instances of the channel */
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u32 usrs;
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/* Indicates id of the field which is being displayed */
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u32 field_id;
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/* flag to indicate whether decoder is initialized */
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u8 initialized;
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/* current interface type */
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struct vpfe_hw_if_param vpfe_if_params;
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/* ptr to currently selected sub device */
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struct vpfe_subdev_info *current_subdev;
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/* current input at the sub device */
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int current_input;
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/* Keeps track of the information about the standard */
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struct vpfe_std_info std_info;
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/* std index into std table */
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int std_index;
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/* CCDC IRQs used when CCDC/ISIF output to SDRAM */
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unsigned int ccdc_irq0;
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unsigned int ccdc_irq1;
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/* number of buffers in fbuffers */
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u32 numbuffers;
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/* List of buffer pointers for storing frames */
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u8 *fbuffers[VIDEO_MAX_FRAME];
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/* Pointer pointing to current v4l2_buffer */
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struct videobuf_buffer *cur_frm;
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/* Pointer pointing to next v4l2_buffer */
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struct videobuf_buffer *next_frm;
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/*
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* This field keeps track of type of buffer exchange mechanism
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* user has selected
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*/
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enum v4l2_memory memory;
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/* Used to store pixel format */
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struct v4l2_format fmt;
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/*
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* used when IMP is chained to store the crop window which
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* is different from the image window
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*/
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struct v4l2_rect crop;
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/* Buffer queue used in video-buf */
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struct videobuf_queue buffer_queue;
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/* Queue of filled frames */
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struct list_head dma_queue;
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/* Used in video-buf */
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spinlock_t irqlock;
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/* IRQ lock for DMA queue */
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spinlock_t dma_queue_lock;
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/* lock used to access this structure */
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struct mutex lock;
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/* number of users performing IO */
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u32 io_usrs;
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/* Indicates whether streaming started */
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u8 started;
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/*
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* offset where second field starts from the starting of the
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* buffer for field separated YCbCr formats
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*/
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u32 field_off;
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};
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/* File handle structure */
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struct vpfe_fh {
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struct v4l2_fh fh;
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struct vpfe_device *vpfe_dev;
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/* Indicates whether this file handle is doing IO */
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u8 io_allowed;
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};
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struct vpfe_config_params {
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u8 min_numbuffers;
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u8 numbuffers;
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u32 min_bufsize;
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u32 device_bufsize;
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};
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#endif /* End of __KERNEL__ */
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#endif /* _DAVINCI_VPFE_H */
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