projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| e0d3bafd SD |
1 | /* |
| 2 | cx231xx_vbi.h - driver for Conexant Cx23100/101/102 USB video capture devices | |
| 3 | ||
| 4 | Copyright (C) 2008 <srinivasa.deevi at conexant dot com> | |
| 5 | Based on cx88 driver | |
| 6 | ||
| 7 | This program is free software; you can redistribute it and/or modify | |
| 8 | it under the terms of the GNU General Public License as published by | |
| 9 | the Free Software Foundation; either version 2 of the License, or | |
| 10 | (at your option) any later version. | |
| 11 | ||
| 12 | This program is distributed in the hope that it will be useful, | |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 15 | GNU General Public License for more details. | |
| 16 | ||
| 17 | You should have received a copy of the GNU General Public License | |
| 18 | along with this program; if not, write to the Free Software | |
| 19 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
| 20 | */ | |
| 21 | ||
| 22 | #ifndef _CX231XX_VBI_H | |
| 23 | #define _CX231XX_VBI_H | |
| 24 | ||
| 25 | extern struct videobuf_queue_ops cx231xx_vbi_qops; | |
| 26 | ||
| 27 | ||
| 28 | #define NTSC_VBI_START_LINE 10 /* line 10 - 21 */ | |
| 29 | #define NTSC_VBI_END_LINE 21 | |
| 30 | #define NTSC_VBI_LINES (NTSC_VBI_END_LINE - NTSC_VBI_START_LINE + 1) | |
| 31 | ||
| 32 | #define PAL_VBI_START_LINE 6 | |
| 33 | #define PAL_VBI_END_LINE 23 | |
| 34 | #define PAL_VBI_LINES (PAL_VBI_END_LINE - PAL_VBI_START_LINE + 1) | |
| 35 | ||
| 36 | #define VBI_STRIDE 1440 | |
| 37 | #define VBI_SAMPLES_PER_LINE 1440 | |
| 38 | ||
| 39 | #define CX231XX_NUM_VBI_PACKETS 4 | |
| 40 | #define CX231XX_NUM_VBI_BUFS 5 | |
| 41 | ||
| 42 | /* stream functions */ | |
| 43 | int cx231xx_init_vbi_isoc(struct cx231xx *dev, int max_packets, | |
| 44 | int num_bufs, int max_pkt_size, | |
| 45 | int (*isoc_copy) (struct cx231xx *dev, struct urb *urb)); | |
| 46 | ||
| 47 | void cx231xx_uninit_vbi_isoc(struct cx231xx *dev); | |
| 48 | ||
| 49 | /* vbi data copy functions */ | |
| 50 | u32 cx231xx_get_vbi_line(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q, | |
| 51 | u8 sav_eav, u8 *p_buffer, u32 buffer_size); | |
| 52 | u32 cx231xx_copy_vbi_line(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q, | |
| 53 | u8 *p_line, u32 length, int field_number); | |
| 54 | void cx231xx_reset_vbi_buffer(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q); | |
| 55 | ||
| 56 | int cx231xx_do_vbi_copy(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q, | |
| 57 | u8 *p_buffer, u32 bytes_to_copy); | |
| 58 | ||
| 59 | u8 cx231xx_is_vbi_buffer_done(struct cx231xx *dev,struct cx231xx_dmaqueue *dma_q); | |
| 60 | ||
| 61 | #endif |