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/* $FreeBSD: release/9.1.0/sys/dev/bktr/bktr_mem.h 139749 2005-01-06 01:43:34Z imp $ */ /* * 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);