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highlevel.c
Package: dvd-munitions.tar.gz [view]
Upload User: aoeyumen
Upload Date: 2007-01-06
Package Size: 3329k
Code Size: 3k
Category:
DVD
Development Platform:
Unix_Linux
- /*
- **********************************************************************
- *
- * Copyright 1999, 2000 Creative Labs, Inc.
- *
- **********************************************************************
- *
- * Date Author Summary of changes
- * ---- ------ ------------------
- * October 20, 1999 Andrew de Quincey Rewrote and extended
- * Lucien Murray-Pitts original incomplete
- * driver.
- *
- * April 18, 1999 Andrew Veliath Original Driver
- * implementation
- *
- **********************************************************************
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public
- * License along with this program; if not, write to the Free
- * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
- * USA.
- *
- **********************************************************************
- */
- /**
- *
- * Driver for the Auravision VxP524 Video processor chip
- * High level functions
- *
- */
- #include <linux/pci.h>
- #include <linux/types.h>
- #include <asm/atomic.h>
- #include <vxp524.h>
- /**
- *
- * Initlialises the VXP524
- *
- * @param instance instance to use
- *
- * @return 0 on success, <0 on error
- *
- */
- extern int vxp524_init(vxp524_t* instance)
- {
- // set clocks to external source
- vxp524_set_reg(instance, VXP524_CLK_MODE, 0);
- // global reset, memory mode=16bits, flush FIFO
- vxp524_set_reg(instance, VXP524_PCI_GLOBAL_REGS, 0xD0);
- // enable demux
- vxp524_set_reg(instance, VXP524_INPUT_CFG, 0x2);
- // disable all IRQs
- vxp524_set_reg(instance, VXP524_INTR_CTRL, 0);
- // all IRQ status = off
- vxp524_set_reg(instance, VXP524_INTR_STATUS, 0);
- // SGS3430 mode
- vxp524_set_reg(instance, VXP524_CODEC_CFG, 3);
- // global reset, memory mode=16bits, flush FIFO
- vxp524_set_reg(instance, VXP524_PCI_GLOBAL_REGS, 0xD0);
- // memory mode=16bits
- vxp524_set_reg(instance, VXP524_PCI_GLOBAL_REGS, 0x40);
- // OK
- return(0);
- }