| /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| /* |
| cx231xx_vbi.h - driver for Conexant Cx23100/101/102 USB video capture devices |
| |
| Copyright (C) 2008 <srinivasa.deevi at conexant dot com> |
| Based on cx88 driver |
| |
| */ |
| |
| #ifndef _CX231XX_VBI_H |
| #define _CX231XX_VBI_H |
| |
| extern struct vb2_ops cx231xx_vbi_qops; |
| |
| #define NTSC_VBI_START_LINE 10 /* line 10 - 21 */ |
| #define NTSC_VBI_END_LINE 21 |
| #define NTSC_VBI_LINES (NTSC_VBI_END_LINE-NTSC_VBI_START_LINE+1) |
| |
| #define PAL_VBI_START_LINE 6 |
| #define PAL_VBI_END_LINE 23 |
| #define PAL_VBI_LINES (PAL_VBI_END_LINE-PAL_VBI_START_LINE+1) |
| |
| #define VBI_STRIDE 1440 |
| #define VBI_SAMPLES_PER_LINE 1440 |
| |
| #define CX231XX_NUM_VBI_PACKETS 4 |
| #define CX231XX_NUM_VBI_BUFS 5 |
| |
| /* stream functions */ |
| int cx231xx_init_vbi_isoc(struct cx231xx *dev, int max_packets, |
| int num_bufs, int max_pkt_size, |
| int (*bulk_copy) (struct cx231xx *dev, |
| struct urb *urb)); |
| |
| void cx231xx_uninit_vbi_isoc(struct cx231xx *dev); |
| |
| /* vbi data copy functions */ |
| u32 cx231xx_get_vbi_line(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q, |
| u8 sav_eav, u8 *p_buffer, u32 buffer_size); |
| |
| u32 cx231xx_copy_vbi_line(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q, |
| u8 *p_line, u32 length, int field_number); |
| |
| void cx231xx_reset_vbi_buffer(struct cx231xx *dev, |
| struct cx231xx_dmaqueue *dma_q); |
| |
| int cx231xx_do_vbi_copy(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q, |
| u8 *p_buffer, u32 bytes_to_copy); |
| |
| u8 cx231xx_is_vbi_buffer_done(struct cx231xx *dev, |
| struct cx231xx_dmaqueue *dma_q); |
| |
| #endif |
