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1/* SPDX-License-Identifier: GPL-2.0-or-later */2/*3 cx231xx_vbi.h - driver for Conexant Cx23100/101/102 USB video capture devices4 5 Copyright (C) 2008 <srinivasa.deevi at conexant dot com>6 Based on cx88 driver7 8 */9 10#ifndef _CX231XX_VBI_H11#define _CX231XX_VBI_H12 13extern struct vb2_ops cx231xx_vbi_qops;14 15#define NTSC_VBI_START_LINE 10 /* line 10 - 21 */16#define NTSC_VBI_END_LINE 2117#define NTSC_VBI_LINES (NTSC_VBI_END_LINE-NTSC_VBI_START_LINE+1)18 19#define PAL_VBI_START_LINE 620#define PAL_VBI_END_LINE 2321#define PAL_VBI_LINES (PAL_VBI_END_LINE-PAL_VBI_START_LINE+1)22 23#define VBI_STRIDE 144024#define VBI_SAMPLES_PER_LINE 144025 26#define CX231XX_NUM_VBI_PACKETS 427#define CX231XX_NUM_VBI_BUFS 528 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#endif54