1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-or-later */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun cx231xx_vbi.h - driver for Conexant Cx23100/101/102 USB video capture devices 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun Copyright (C) 2008 <srinivasa.deevi at conexant dot com> 6*4882a593Smuzhiyun Based on cx88 driver 7*4882a593Smuzhiyun 8*4882a593Smuzhiyun */ 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun #ifndef _CX231XX_VBI_H 11*4882a593Smuzhiyun #define _CX231XX_VBI_H 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun extern struct vb2_ops cx231xx_vbi_qops; 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun #define NTSC_VBI_START_LINE 10 /* line 10 - 21 */ 16*4882a593Smuzhiyun #define NTSC_VBI_END_LINE 21 17*4882a593Smuzhiyun #define NTSC_VBI_LINES (NTSC_VBI_END_LINE-NTSC_VBI_START_LINE+1) 18*4882a593Smuzhiyun 19*4882a593Smuzhiyun #define PAL_VBI_START_LINE 6 20*4882a593Smuzhiyun #define PAL_VBI_END_LINE 23 21*4882a593Smuzhiyun #define PAL_VBI_LINES (PAL_VBI_END_LINE-PAL_VBI_START_LINE+1) 22*4882a593Smuzhiyun 23*4882a593Smuzhiyun #define VBI_STRIDE 1440 24*4882a593Smuzhiyun #define VBI_SAMPLES_PER_LINE 1440 25*4882a593Smuzhiyun 26*4882a593Smuzhiyun #define CX231XX_NUM_VBI_PACKETS 4 27*4882a593Smuzhiyun #define CX231XX_NUM_VBI_BUFS 5 28*4882a593Smuzhiyun 29*4882a593Smuzhiyun /* stream functions */ 30*4882a593Smuzhiyun int cx231xx_init_vbi_isoc(struct cx231xx *dev, int max_packets, 31*4882a593Smuzhiyun int num_bufs, int max_pkt_size, 32*4882a593Smuzhiyun int (*bulk_copy) (struct cx231xx *dev, 33*4882a593Smuzhiyun struct urb *urb)); 34*4882a593Smuzhiyun 35*4882a593Smuzhiyun void cx231xx_uninit_vbi_isoc(struct cx231xx *dev); 36*4882a593Smuzhiyun 37*4882a593Smuzhiyun /* vbi data copy functions */ 38*4882a593Smuzhiyun u32 cx231xx_get_vbi_line(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q, 39*4882a593Smuzhiyun u8 sav_eav, u8 *p_buffer, u32 buffer_size); 40*4882a593Smuzhiyun 41*4882a593Smuzhiyun u32 cx231xx_copy_vbi_line(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q, 42*4882a593Smuzhiyun u8 *p_line, u32 length, int field_number); 43*4882a593Smuzhiyun 44*4882a593Smuzhiyun void cx231xx_reset_vbi_buffer(struct cx231xx *dev, 45*4882a593Smuzhiyun struct cx231xx_dmaqueue *dma_q); 46*4882a593Smuzhiyun 47*4882a593Smuzhiyun int cx231xx_do_vbi_copy(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q, 48*4882a593Smuzhiyun u8 *p_buffer, u32 bytes_to_copy); 49*4882a593Smuzhiyun 50*4882a593Smuzhiyun u8 cx231xx_is_vbi_buffer_done(struct cx231xx *dev, 51*4882a593Smuzhiyun struct cx231xx_dmaqueue *dma_q); 52*4882a593Smuzhiyun 53*4882a593Smuzhiyun #endif 54