em840x.h

这是一个SIGMA方案的PMP播放器的UCLINUX程序,可播放DVD,VCD,CD MP3...有很好的参考价值.

/*****************************************************************************
*  em840x.h : definitions for EM840X only
*  REALmagic Quasar Hardware Library
*  Created by Aurelia Popa-Radu
*  Copyright Sigma Designs Inc
*  Sigma Designs Proprietary and confidential
*  Created on 08/01/01
*  Description:
*****************************************************************************/

#ifndef __EM840X_H__
#define __EM840X_H__

#define Q3CTRL1_VERT_UP_FILT_ENABLE	BIT6
#define Q3CTRL1_HORZ_UP_FILT_ENABLE	BIT5
#define Q3CTRL1_HORZ_DOWN_ENABLE	BIT4
#define Q3CTRL1_VERT_UP_ENABLE		BIT3
#define Q3CTRL1_HORZ_UP_ENABLE		BIT2

#define Q3CTRL2_USE_EXTERN_VCLK		0x0000
#define Q3CTRL2_USE_GCLK			0x0020
#define Q3CTRL2_USE_GCLK_DIVIDED2	0x0040
#define Q3CTRL2_USE_GCLK_DIVIDED3	0x0060
#define Q3CTRL2_USE_GCLK_DIVIDED4	0x0080
#define Q3CTRL2_USE_GCLK_DIVIDED5	0x00A0
#define Q3CTRL2_USE_GCLK_DIVIDED6	0x00C0
#define Q3CTRL2_USE_GCLK_DIVIDED7	0x00E0

// for sigma TV
#define DACS_MASK		0x0400
#define DACS_DISABLE	0x0008
#define DACS_ENABLE		0x0408
#define PICT_SYNC_OFF	0x00c8
#endif