cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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cx231xx-vbi.h (1605B)

      1/* SPDX-License-Identifier: GPL-2.0-or-later */
      2/*
      3   cx231xx_vbi.h - driver for Conexant Cx23100/101/102 USB video capture devices
      4
      5   Copyright (C) 2008 <srinivasa.deevi at conexant dot com>
      6		Based on cx88 driver
      7
      8 */
      9
     10#ifndef _CX231XX_VBI_H
     11#define _CX231XX_VBI_H
     12
     13extern struct vb2_ops cx231xx_vbi_qops;
     14
     15#define   NTSC_VBI_START_LINE 10	/* line 10 - 21 */
     16#define   NTSC_VBI_END_LINE   21
     17#define   NTSC_VBI_LINES	  (NTSC_VBI_END_LINE-NTSC_VBI_START_LINE+1)
     18
     19#define   PAL_VBI_START_LINE  6
     20#define   PAL_VBI_END_LINE    23
     21#define   PAL_VBI_LINES       (PAL_VBI_END_LINE-PAL_VBI_START_LINE+1)
     22
     23#define   VBI_STRIDE            1440
     24#define   VBI_SAMPLES_PER_LINE  1440
     25
     26#define   CX231XX_NUM_VBI_PACKETS       4
     27#define   CX231XX_NUM_VBI_BUFS          5
     28
     29/* stream functions */
     30int cx231xx_init_vbi_isoc(struct cx231xx *dev, int max_packets,
     31			  int num_bufs, int max_pkt_size,
     32			  int (*bulk_copy) (struct cx231xx *dev,
     33					    struct urb *urb));
     34
     35void cx231xx_uninit_vbi_isoc(struct cx231xx *dev);
     36
     37/* vbi data copy functions */
     38u32 cx231xx_get_vbi_line(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q,
     39			 u8 sav_eav, u8 *p_buffer, u32 buffer_size);
     40
     41u32 cx231xx_copy_vbi_line(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q,
     42			  u8 *p_line, u32 length, int field_number);
     43
     44void cx231xx_reset_vbi_buffer(struct cx231xx *dev,
     45			      struct cx231xx_dmaqueue *dma_q);
     46
     47int cx231xx_do_vbi_copy(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q,
     48			u8 *p_buffer, u32 bytes_to_copy);
     49
     50u8 cx231xx_is_vbi_buffer_done(struct cx231xx *dev,
     51			      struct cx231xx_dmaqueue *dma_q);
     52
     53#endif