mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-29 12:03:03 +00:00
64 lines
2.7 KiB
C
64 lines
2.7 KiB
C
/* $FreeBSD$ */
|
|
|
|
/*
|
|
* This is prt of the Driver for Video Capture Cards (Frame grabbers)
|
|
* and TV Tuner cards using the Brooktree Bt848, Bt848A, Bt849A, Bt878, Bt879
|
|
* chipset.
|
|
* Copyright Roger Hardiman.
|
|
*
|
|
* bktr_mem : This kernel module allows us to keep our allocated
|
|
* contiguous memory for the video buffer, DMA programs and VBI data
|
|
* while the main bktr driver is unloaded and reloaded.
|
|
* This avoids the problem of trying to allocate contiguous each
|
|
* time the bktr driver is loaded.
|
|
*/
|
|
|
|
/*-
|
|
* 1. Redistributions of source code must retain the
|
|
* Copyright (c) 2000 Roger Hardiman
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by Roger Hardiman
|
|
* 4. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
|
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
|
|
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
|
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
|
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
|
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
|
|
/* Support this number of devices */
|
|
#define BKTR_MEM_MAX_DEVICES 8
|
|
|
|
/* Define a name for each block of memory we need to keep hold of */
|
|
#define BKTR_MEM_DMA_PROG 1
|
|
#define BKTR_MEM_ODD_DMA_PROG 2
|
|
#define BKTR_MEM_VBIDATA 3
|
|
#define BKTR_MEM_VBIBUFFER 4
|
|
#define BKTR_MEM_BUF 5
|
|
|
|
/* Prototypes */
|
|
int bktr_has_stored_addresses(int unit);
|
|
void bktr_store_address(int unit, int type, vm_offset_t addr);
|
|
vm_offset_t bktr_retrieve_address(int unit, int type);
|
|
|