saa7125.c

SAA7125在psos下的驱动程序,相当详细.

/*
 * Copyright (c) 1995-1999 by Philips Semiconductors.
 *
 * +------------------------------------------------------------------+
 * | This software is furnished under a license and may only be used  |
 * | and copied in accordance with the terms and conditions of  such  |
 * | a license and with the inclusion of this copyright notice. This  |
 * | software or any other copies of this software may not be provided|
 * | or otherwise made available to any other person.  The ownership  |
 * | and title of this software is not transferred.                   |
 * |                                                                  |
 * | The information in this software is subject  to change without   |
 * | any  prior notice and should not be construed as a commitment by |
 * | Philips Semiconductors.                                          |
 * |                                                                  |
 * | this code and information is provided "as is" without any        |
 * | warranty of any kind, either expressed or implied, including but |
 * | not limited to the implied warranties of merchantability and/or  |
 * | fitness for any particular purpose.                              |
 * +------------------------------------------------------------------+
 *
 *  Module name              : saa7125.c    1.19
 *
 *  Last update              : 11:06:59 - 99/02/15
 *
 *
 *  Description              :
 *
 *  Initialize and control routines for saa7125 DENC.
 *
 *  Revision                 :
 *      Built for the TCS 2.0 release
 *
 */


#include <stdio.h>
#include <tm1/tmIIC.h>
#include <tm1/tmAvFormats.h>
#include <tm1/tmVO.h>
#include <tm1/tmProcessor.h>
#include <tmlib/tmtypes.h>
#include <unistd.h>
#include "saa7125.h"

#define NO_SUPPORT_7121			1

#define SAA7125_NREGS   0x7E    /* number of 7125 registers     */
#define SAA7125_STARADR 0x38    /* Start for sub-addresses for 7125 */
#define SAA7125_ADDR    0x8c    /* SAA7125 IIC address */

#define SAA7125_GAIN_U_REG        0x5B
#define SAA7125_GAIN_V_REG        0x5C
#define SAA7125_BLACKLEVEL_REG    0x5D    /* bits 0-5 */
#define SAA7125_CONSTRAST_REG     0x5E


/* Initialization values; starts at SAA7125_STARADR */
/* SAA 7125 in master mode */

static unsigned char saa7125_init[SAA7125_NREGS - SAA7125_STARADR] = {
     /* 0x38 */ 0x00, 0x00, 0x1F, 0x00, 0x00, 0x00, 0x00, 0x00,
     /* 0x40 */ 0x00, 0x00, 0x6B, 0x00, 0x00, 0x22, 0xAC, 0x0E,
     /* 0x48 */ 0x03, 0x1D, 0xAC, 0xF0, 0xC8, 0xB9, 0xD4, 0x38,
     /* 0x50 */ 0x47, 0xC1, 0xE3, 0x54, 0xA3, 0x54, 0xF2, 0x90,
     /* 0x58 */ 0x00, 0x00, 0x68, 0x82, 0xB6, 0x2D, 0x3F, 0x00,
     /* 0x60 */ 0x38, 0x56, 0x4E, 0xCB, 0x8A, 0x09, 0x2A, 0x00,
     /* 0x68 */ 0x00, 0x00, 0x00, 0x11, 0x7A, 0x04, 0xAC, 0x06,
     /* 0x70 */ 0x0C, 0x77, 0xF7, 0x33, 0x00, 0x00, 0x00, 0x00,
     /* 0x78 */ 0x03, 0x00, 0x70, 0x12, 0x35, 0x22
};

typedef struct subaddInfo_t {
    UInt8       subAddr;    /* subaddress of IIC register */
    UInt8       value;      /* data for IIC register */
}           subaddInfo_t;

static subaddInfo_t saa7125_pal[] = {
    {0x61, 0xC6},        /* Standard Control */

    {0x3A, 0x3B},        /* Input port control */

    {0x5A, 0x68},        /* Chroma Phase */
    {0x5B, 0x7D},        /* Gain-U */
    {0x5C, 0xAF},        /* Gain-V */
    {0x5D, 0x2D}, //0x5d,0x2D       /* Gain-U MSB, Black Level */
    {0x5E, 0x3F}, //3f       /* Gain-V MSB, Blanking Level */
    {0x5F, 0x3F}, //3f       /* Gain-V MSB, Blanking Level in Vertical */

    {0x62, 0x4B},        /* Burst Amplitude */
    {0x63, 0xCB},        /* Subcarrier Frequency, Byte 0 */
    {0x64, 0x8A},        /* Subcarrier Frequency, Byte 1 */
    {0x65, 0x09},        /* Subcarrier Frequency, Byte 2 */
    {0x66, 0x2A},        /* Subcarrier Frequency, Byte 3 */

    {0x67, 0xAA},        /* */
    {0x68, 0x00},        /* */
    {0x69, 0x00},        /* */
    {0x6A, 0x00},        /* */

    {0x6B, 0x45},        /* FS on RCV1 falling, Htrig on RCV2 falling */

    {0x6C, 0x1D},        /* Horizontal Trigger (LSB's) */
    {0x6D, 0x24},        /* Horizontal Trigger (MSB's) + Vtrig */

    {0x6E, 0x80},        /* Reset when changing Subcarrier frequency */

    {0x6F, 0xD1},        /* CC */

    {0x70, 0x00},        /* Begin RCV2 output */
    {0x71, 0x00},        /* End RCV2 output */
    {0x72, 0x00},        /* MSBs RCV2 output */

    {0x7A, 0x16},        /* First Active Line don't care if 0x6E is 0x80 */
    {0x7B, 0x36},        /* Last Active Line  don't care if 0x6E is 0x80 */
    {0x7C, 0x40},        /* (MSB's),          don't care if 0x6E is 0x80 */
};

/*
  For the NTSC case you can change the value written to 0x6E address by 0x80.
  This way the denc will use the SAV/EAV codes generated by VO and not its
  internal counters.
 */

static subaddInfo_t saa7125_ntsc[] = {
    {0x61, 0xD5},        /* Standard Control */
    {0x3A, 0x3B},        /* Input port control */
    {0x42, 0x6B},        /* OSD Lut */
    {0x45, 0x52},        /* OSD Lut */
    {0x46, 0x90},        /* OSD Lut */
    {0x47, 0x12},        /* OSD Lut */
    {0x48, 0x2A},        /* OSD Lut */
    {0x49, 0x26},        /* OSD Lut */
    {0x4A, 0x90},        /* OSD Lut */
    {0x4B, 0x11},        /* OSD Lut */
    {0x4C, 0xB6},        /* OSD Lut */
    {0x4D, 0xA2},        /* OSD Lut */
    {0x4E, 0xEA},        /* OSD Lut */
    {0x4F, 0x4A},        /* OSD Lut */
    {0x50, 0x5E},        /* OSD Lut */
    {0x51, 0xD1},        /* OSD Lut */
    {0x52, 0xDA},        /* OSD Lut */
    {0x53, 0x70},        /* OSD Lut */
    {0x54, 0xA9},        /* OSD Lut */
    {0x55, 0x70},        /* OSD Lut */
    {0x56, 0xEE},        /* OSD Lut */
    {0x57, 0x90},        /* OSD Lut */
    {0x5A, 0x33},        /* Chroma Phase */
    {0x5B, 0x79},        /* Gain-U */
    {0x5C, 0xAD},        /* Gain-V */
    {0x5D, 0x3C},        /* Gain-U MSB, Black Level */
    {0x5E, 0x3A},        /* Gain-V MSB, Blanking Level */
    {0x5F, 0x3A},        /* Gain-V MSB, Blanking Level in Vertical */
    {0x61, 0xD5},        /* Standard Control */
    {0x62, 0x69},        /* Burst Amplitude */
    {0x63, 0x1F},        /* Subcarrier Frequency, Byte 0 */
    {0x64, 0x7C},        /* Subcarrier Frequency, Byte 1 */
    {0x65, 0xF0},        /* Subcarrier Frequency, Byte 2 */
    {0x66, 0x21},        /* Subcarrier Frequency, Byte 3 */
    {0x67, 0xAA},        /* */
    {0x68, 0x00},        /* */
    {0x69, 0x00},        /* */
    {0x6A, 0x00},        /* */
    {0x6B, 0x45},        /* Input Port & Closed Caption-Select Line Number */
    {0x6C, 0xF1},        /* Horizontal Trigger (LSB's) */
    {0x6D, 0x00},        /* Vertical and Horizontal Trigger (MSB's) */
    {0x6E, 0x80},        /* Horizontal Trigger (MSB's) */
    {0x6F, 0xD1},        /* Reset when changing Subcarrier frequency */
    {0x70, 0x00},        /* Begin MP request */
    {0x71, 0x00},        /* End MP request */
    {0x72, 0x00},        /* MSBs MP request */
    {0x7A, 0x12},        /* First Active Line */
    {0x7B, 0x03},        /* Last Active Line */
    {0x7C, 0x40}         /* Field Control (MSB's) */
};



/** **  Public Config function ****/
static
tmLibdevErr_t 
saa7125Config(unsigned long address, subaddInfo_t * tobeupdated, unsigned long last_address)
{
    int         i;
    unsigned char subaddr, data;
    int         retval = 0;

#if NO_SUPPORT_7121
	return TMLIBDEV_OK;
#endif 


    /* Update the device */
    for (i = 0; i < last_address; i++) {
        subaddr = tobeupdated[i].subAddr;
        data = tobeupdated[i].value;
        retval |= iicWriteReg(address, subaddr, data);
    }            /* end of for() */
    return ((tmLibdevErr_t) retval);
}                /* end of saa7125Config() */



/****  Public Init function ****/
tmLibdevErr_t 
saa7125Init(pboardVOParam_t param)
{
   

    return ((tmLibdevErr_t) retval);
}

/**   Public Config function ****/
tmLibdevErr_t 
saa7125Configure(unsigned long subaddr, unsigned long value)
{
    int         err;
	tmLibdevErr_t retval = TMLIBDEV_OK;
	
#if NO_SUPPORT_7121
	return TMLIBDEV_OK;
#endif 

    err = iicWriteReg(SAA7125_ADDR, subaddr, value);

    if (err)
        retval |= err;
    return (retval);
}


/************************** Turn Denc DAC on  *****************************/
tmLibdevErr_t 
saa7125Start(tmVideoAnalogStandard_t standard)
{
#if NO_SUPPORT_7121
	return TMLIBDEV_OK;
#endif 

    if (standard == vasNTSC)
        return (iicWriteReg(SAA7125_ADDR, 0x61, 0x15));
    else
        return (iicWriteReg(SAA7125_ADDR, 0x61, 0x16));
}

/************************** Turn Denc DAC off  *****************************/
tmLibdevErr_t 
saa7125Stop(tmVideoAnalogStandard_t standard)
{
#if NO_SUPPORT_7121
	return TMLIBDEV_OK;
#endif 

    if (standard == vasNTSC)
        return (iicWriteReg(SAA7125_ADDR, 0x61, 0xD5));
    else
        return (iicWriteReg(SAA7125_ADDR, 0x61, 0xD6));
}

/************************** Set Brightness (or Balck Level) *****************/
tmLibdevErr_t 
saa7125SetBrightness(unsigned int val)
{
#if NO_SUPPORT_7121
	return TMLIBDEV_OK;
#endif 

    if (val > 63)
        return BOARD_ERR_VAL_OUT_OF_RANGE;

    return iicWriteReg(SAA7125_ADDR, SAA7125_BLACKLEVEL_REG, val);
}



tmLibdevErr_t 
saa7125SetContrast(unsigned int val)
{
#if NO_SUPPORT_7121
	return TMLIBDEV_OK;
#endif 

    if (val > 63)
        return BOARD_ERR_VAL_OUT_OF_RANGE;

    return iicWriteReg(SAA7125_ADDR, SAA7125_CONSTRAST_REG, val);
}

tmLibdevErr_t 
saa7125SetSaturation(unsigned int val)
{
#if NO_SUPPORT_7121
	return TMLIBDEV_OK;
#endif 

    if (val > 255)
        return BOARD_ERR_VAL_OUT_OF_RANGE;

    return iicWriteReg(SAA7125_ADDR, SAA7125_GAIN_V_REG, val);
}

tmLibdevErr_t 
saa7125SetHue(unsigned int val)
{
#if NO_SUPPORT_7121
	return TMLIBDEV_OK;
#endif 

    if (val > 255)
        return BOARD_ERR_VAL_OUT_OF_RANGE;

    return iicWriteReg(SAA7125_ADDR, SAA7125_GAIN_U_REG, val);
}