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https://github.com/edk2-porting/linux-next.git
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4015bef649
Remove bogus 'numbuffers' and 'bufsize' module options. The number of buffers and buffer sizes are determined by VIDIOC_REQBUFS and VIDIOC_S_FMT and the amount of available memory (in the case of the MMAP stream I/O mode) and not by module options. These module params are a left-over from the original montavista code that used these parameters to pre-allocate the memory needed for the buffers. The code that allocated those buffers was never upstreamed since by the time the drivers were added to the kernel the TI cmem module could be used in combination with the USERPTR mode to reserve and pass physically contiguous memory pointers around. These days of course CMA is used instead of cmem. This patch removes these module options altogether since they no longer do what they originally were designed for. They should never have been part of the upstreamed code in the first place, so they've been pointless ever since 2.6.32 when this driver first appeared in the mainline kernel. Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
123 lines
3.6 KiB
C
123 lines
3.6 KiB
C
/*
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* Copyright (C) 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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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef VPIF_CAPTURE_H
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#define VPIF_CAPTURE_H
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/* Header files */
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#include <media/videobuf2-dma-contig.h>
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#include <media/v4l2-device.h>
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#include "vpif.h"
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/* Macros */
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#define VPIF_CAPTURE_VERSION "0.0.2"
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#define VPIF_VALID_FIELD(field) (((V4L2_FIELD_ANY == field) || \
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(V4L2_FIELD_NONE == field)) || \
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(((V4L2_FIELD_INTERLACED == field) || \
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(V4L2_FIELD_SEQ_TB == field)) || \
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(V4L2_FIELD_SEQ_BT == field)))
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#define VPIF_CAPTURE_MAX_DEVICES 2
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#define VPIF_VIDEO_INDEX 0
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#define VPIF_NUMBER_OF_OBJECTS 1
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/* Enumerated data type to give id to each device per channel */
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enum vpif_channel_id {
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VPIF_CHANNEL0_VIDEO = 0,
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VPIF_CHANNEL1_VIDEO,
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};
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struct video_obj {
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enum v4l2_field buf_field;
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/* Currently selected or default standard */
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v4l2_std_id stdid;
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struct v4l2_dv_timings dv_timings;
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};
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struct vpif_cap_buffer {
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struct vb2_buffer vb;
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struct list_head list;
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};
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struct common_obj {
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/* Pointer pointing to current v4l2_buffer */
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struct vpif_cap_buffer *cur_frm;
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/* Pointer pointing to current v4l2_buffer */
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struct vpif_cap_buffer *next_frm;
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/* Used to store pixel format */
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struct v4l2_format fmt;
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/* Buffer queue used in video-buf */
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struct vb2_queue buffer_queue;
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/* allocator-specific contexts for each plane */
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struct vb2_alloc_ctx *alloc_ctx;
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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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/* lock used to access this structure */
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struct mutex lock;
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/* Function pointer to set the addresses */
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void (*set_addr) (unsigned long, unsigned long, unsigned long,
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unsigned long);
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/* offset where Y top starts from the starting of the buffer */
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u32 ytop_off;
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/* offset where Y bottom starts from the starting of the buffer */
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u32 ybtm_off;
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/* offset where C top starts from the starting of the buffer */
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u32 ctop_off;
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/* offset where C bottom starts from the starting of the buffer */
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u32 cbtm_off;
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/* Indicates width of the image data */
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u32 width;
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/* Indicates height of the image data */
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u32 height;
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};
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struct channel_obj {
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/* Identifies video device for this channel */
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struct video_device *video_dev;
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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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/* Identifies channel */
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enum vpif_channel_id channel_id;
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/* Current input */
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u32 input_idx;
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/* subdev corresponding to the current input, may be NULL */
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struct v4l2_subdev *sd;
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/* vpif configuration params */
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struct vpif_params vpifparams;
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/* common object array */
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struct common_obj common[VPIF_NUMBER_OF_OBJECTS];
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/* video object */
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struct video_obj video;
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};
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struct vpif_device {
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struct v4l2_device v4l2_dev;
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struct channel_obj *dev[VPIF_CAPTURE_NUM_CHANNELS];
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struct v4l2_subdev **sd;
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struct v4l2_async_notifier notifier;
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struct vpif_capture_config *config;
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};
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#endif /* VPIF_CAPTURE_H */
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