edid_maker.c

SigmDesign SMP8634 media decode chip development SDK

/*
 *
 * Copyright (c) Sigma Designs, Inc. 2005. All rights reserved.
 *
 */

/**
	@file edid_maker.c
	@brief sample application to create EDID / CEA extension version 3 data blocks
	
	@author Christian Wolff
*/

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

#define ALLOW_OS_CODE 1
#include "../rua/include/rua.h"
#include "../rua/include/rua_property.h"
#include "../rmcore/include/rmstatustostring.h"
#include "../rmlibcw/include/rmlibcw.h"
#include "common.h"

#define EDID_PNP_ID   "SMA"     // PRELIMINARY (i.e.: made up) Sigma Designs, Inc.
#define EDID_IEEE_OUI 0x0016E8  // Sigma Designs, Inc., issued 2005-12-22
#define HDMI_IEEE_OUI 0x000C03   // HDMI Licensing, LLC

static RMstatus edid_start(RMuint8 *edid, RMuint32 *offset, 
	RMascii *vendor, 
	RMuint16 product_code, 
	RMuint32 serial, 
	RMuint8 week, 
	RMuint32 year)
{
	RMuint32 i;
	RMuint16 v;
	
	if (edid == NULL) return RM_INVALID_PARAMETER;
	
	// header
	edid[0x00] = 0x00;
	edid[0x01] = 0xFF;
	edid[0x02] = 0xFF;
	edid[0x03] = 0xFF;
	edid[0x04] = 0xFF;
	edid[0x05] = 0xFF;
	edid[0x06] = 0xFF;
	edid[0x07] = 0x00;
	
	// vendor / product info
	if ((week == 0) && year) week = 0xFF;
	v = 0;
	for (i = 0; i < 3; i++) {
		v = (v << 5) | (vendor[i] - 'A' + 1);
	}
	edid[0x08] = v >> 8;
	edid[0x09] = v & 0xFF;
	edid[0x0A] = product_code >> 8;
	edid[0x0B] = product_code & 0xFF;
	edid[0x0C] = serial >> 24;
	edid[0x0D] = (serial >> 16) & 0xFF;
	edid[0x0E] = (serial >> 8) & 0xFF;
	edid[0x0F] = serial & 0xFF;
	edid[0x10] = week;
	edid[0x11] = year ? (year - 1990) : 0x00;
	edid[0x12] = 1;
	edid[0x13] = 3;
	
	edid[0x7E] = 0;
	
	*offset = 0x36;
	
	return RM_OK;
}

static RMstatus edid_add_display(RMuint8 *edid, 
	RMuint8 h_size_cm, 
	RMuint8 v_size_cm, 
	RMuint8 gamma100, // gamma * 100 - 100
	RMbool standby, 
	RMbool suspend, 
	RMbool active_off, 
	RMbool rgb)
{
	RMuint32 i;
	
	if (edid == NULL) return RM_INVALID_PARAMETER;
	
	edid[0x14] = 0x80;
	edid[0x15] = h_size_cm;
	edid[0x16] = v_size_cm;
	edid[0x17] = gamma100;
	edid[0x18] = (standby ? 0x80 : 0) | (suspend ? 0x40 : 0) | (active_off ? 0x20 : 0) | (rgb ? 0x08 : 0x10) | 0x02;
	
	// default color characteristics
	edid[0x19] = 0x0D;
	edid[0x1A] = 0xC9;
	edid[0x1B] = 0xA0;
	edid[0x1C] = 0x57;
	edid[0x1D] = 0x47;
	edid[0x1E] = 0x98;
	edid[0x1F] = 0x27;
	edid[0x20] = 0x12;
	edid[0x21] = 0x48;
	edid[0x22] = 0x4C;
	
	// supports 640x480@60Hz
	edid[0x23] = 0x20;
	edid[0x24] = 0x00;
	edid[0x25] = 0x00;
	
	// no further VESA formats
	for (i = 0x26; i <= 0x35; i++) {
		edid[i] = 0x01;
	}
	
	return RM_OK;
}

static RMstatus edid_add_monitor(RMuint8 *edid, 
	RMascii *name, 
	RMuint8 min_v_rate, 
	RMuint8 max_v_rate, 
	RMuint8 min_h_rate, 
	RMuint8 max_h_rate, 
	RMuint32 max_pix_clk_mhz)
{
	RMuint32 i;
	
	if (edid == NULL) return RM_INVALID_PARAMETER;
	
	edid[0x5A] = 0x00;
	edid[0x5B] = 0x00;
	edid[0x5C] = 0x00;
	edid[0x5D] = 0xFC;
	edid[0x5E] = 0x00;
	
	i = 0; 
	while (name[i] && (i < 13)) {
		edid[0x5F + i] = name[i];
		i++;
	}
	if (i < 13) {
		RMuint32 j;
		edid[0x5F + i] = 0x0A;
		for (j = 1; j < 13; j++) {
			edid[0x5F + j] = 0x20;
		}
	}
	
	edid[0x6C] = 0x00;
	edid[0x6D] = 0x00;
	edid[0x6E] = 0x00;
	edid[0x6F] = 0xFD;
	edid[0x70] = 0x00;
	edid[0x71] = min_v_rate;
	edid[0x72] = max_v_rate;
	edid[0x73] = min_h_rate;
	edid[0x74] = max_h_rate;
	edid[0x75] = max_pix_clk_mhz / 10;
	edid[0x76] = 0x00;
	edid[0x77] = 0x0A;
	edid[0x78] = 0x20;
	edid[0x79] = 0x20;
	edid[0x7A] = 0x20;
	edid[0x7B] = 0x20;
	edid[0x7C] = 0x20;
	edid[0x7D] = 0x20;
	
	return RM_OK;
}

// Please be aware that according to spec either none or both of the yuv settings have to be TRUE
static RMstatus edid_add_extension_block(RMuint8 *edid, 
	RMbool underscan, 
	RMbool audio, 
	RMbool yuv444, 
	RMbool yuv422)
{
	RMuint32 block, i;
	
	block = (++(edid[0x7E]) << 7);
	for (i = 0; i < 0x80; i++) {
		edid[block + i] = 0;
	}
	
	edid[block + 0] = 0x02;
	edid[block + 1] = 0x03;
	edid[block + 2] = 4;
	edid[block + 3] = (underscan ? 0x80 : 0) | (audio ? 0x40 : 0) | (yuv444 ? 0x20 : 0) | (yuv422 ? 0x10 : 0);
	
	return RM_OK;
}

static RMstatus edid_add_video_tag(RMuint8 *edid, 
	RMuint8 VIC, 
	RMbool native)
{
	RMuint32 block, offs;
	
	block = (edid[0x7E] << 7);
	
	if (edid[block + 3] & 0x0F) {
		RMDBGPRINT((ENABLE, "Extension already contains DTD!\n"));
		return RM_ERROR;
	}
	
	offs = edid[block + 2];
	if ((offs == 4) || (offs == 36)) {
		edid[block + offs] = 0x41;
		offs++;
	} else if (offs < 68) {
		if (offs > 36) {
			edid[block + 36] = 0x40 | ((edid[block + 36] & 0x1F) + 1);
		} else {
			edid[block + 4] = 0x40 | ((edid[block + 4] & 0x1F) + 1);
		}
	} else {
		RMDBGPRINT((ENABLE, "Extension full!\n"));
		return RM_ERROR;
	}
	edid[block + offs] = (native ? 0x80 : 0) | (VIC & 0x7F);
	offs++;
	edid[block + 2] = offs;
	
	return RM_OK;
}

// PCM, 2 ch., 32/44.1/48 kHz
// Speaker allocation L_R
static RMstatus edid_add_basic_audio_tag(RMuint8 *edid)
{
	RMuint32 block, offs;
	
	block = (edid[0x7E] << 7);
	
	if (edid[block + 3] & 0x0F) {
		RMDBGPRINT((ENABLE, "Extension already contains DTD!\n"));
		return RM_ERROR;
	}
	
	offs = edid[block + 2];
	
	edid[block + offs++] = 0x23;  // audio format, 1 descr.
	edid[block + offs++] = 0x09;  // pcm, 2 ch.
	edid[block + offs++] = 0x07;  // sample rates
	edid[block + offs++] = 0x07;  // 24/20/16 bit
	
	edid[block + offs++] = 0x83;  // speaker allocation
	edid[block + offs++] = 0x01;  // L+R only
	edid[block + offs++] = 0x00;  // res.
	edid[block + offs++] = 0x00;  // res.
	
	edid[block + 2] = offs;
	
	return RM_OK;
}

// audio capabilities of one I2S line (-source 0)
// Speaker allocation L_R
static RMstatus edid_add_1I2S_audio_tag(RMuint8 *edid)
{
	RMuint32 block, offs;
	
	block = (edid[0x7E] << 7);
	
	if (edid[block + 3] & 0x0F) {
		RMDBGPRINT((ENABLE, "Extension already contains DTD!\n"));
		return RM_ERROR;
	}
	
	offs = edid[block + 2];
	
	edid[block + offs++] = 0x23;  // audio format, 1 descr.
	// 1
	edid[block + offs++] = 0x09;  // pcm, 2 ch.
	edid[block + offs++] = 0x7F;  // all sample rates
	edid[block + offs++] = 0x07;  // 16, 20, 24 bit
	
	edid[block + offs++] = 0x83;  // speaker allocation
	edid[block + offs++] = 0x7F;  // all speakers
	edid[block + offs++] = 0x00;  // res.
	edid[block + offs++] = 0x00;  // res.
	
	edid[block + 2] = offs;
	
	return RM_OK;
}

// audio capabilities of four I2S lines
// Speaker allocation L_R
static RMstatus edid_add_4I2S_audio_tag(RMuint8 *edid)
{
	RMuint32 block, offs;
	
	block = (edid[0x7E] << 7);
	
	if (edid[block + 3] & 0x0F) {
		RMDBGPRINT((ENABLE, "Extension already contains DTD!\n"));
		return RM_ERROR;
	}
	
	offs = edid[block + 2];
	
	edid[block + offs++] = 0x23;  // audio format, 1 descr.
	// 1
	edid[block + offs++] = 0x0F;  // pcm, 8 ch.
	edid[block + offs++] = 0x7F;  // all sample rates
	edid[block + offs++] = 0x07;  // 16, 20, 24 bit
	
	edid[block + offs++] = 0x83;  // speaker allocation
	edid[block + offs++] = 0x7F;  // all speakers
	edid[block + offs++] = 0x00;  // res.
	edid[block + offs++] = 0x00;  // res.
	
	edid[block + 2] = offs;
	
	return RM_OK;
}

// audio capabilities of one 96kHz SPDIF line (-source 1, HDMI 1.2 chip)
// Speaker allocation: all
static RMstatus edid_add_SPDIF96_audio_tag(RMuint8 *edid)
{
	RMuint32 block, offs;
	
	block = (edid[0x7E] << 7);
	
	if (edid[block + 3] & 0x0F) {
		RMDBGPRINT((ENABLE, "Extension already contains DTD!\n"));
		return RM_ERROR;
	}
	
	offs = edid[block + 2];
	
	edid[block + offs++] = 0x38;  // audio format, 8 descr.
	// 1
	edid[block + offs++] = 0x09;  // pcm, up to 2 ch.
	edid[block + offs++] = 0x1F;  // sample rates up to 96kHz
	edid[block + offs++] = 0x07;  // 16, 20, 24 bit
	// 2
	edid[block + offs++] = 0x17;  // ac3, up to 8 ch.
	edid[block + offs++] = 0x1F;  // sample rates up to 96kHz
	edid[block + offs++] = 12;    // 96 kbit/sec
	// 3
	edid[block + offs++] = 0x1F;  // mpeg1, up to 8 ch.
	edid[block + offs++] = 0x1F;  // sample rates up to 96kHz
	edid[block + offs++] = 12;    // 96 kbit/sec
	// 4
	edid[block + offs++] = 0x27;  // mp3, up to 8 ch.
	edid[block + offs++] = 0x1F;  // sample rates up to 96kHz
	edid[block + offs++] = 12;    // 96 kbit/sec
	// 5
	edid[block + offs++] = 0x2F;  // mpeg2, up to 8 ch.
	edid[block + offs++] = 0x1F;  // sample rates up to 96kHz
	edid[block + offs++] = 12;    // 96 kbit/sec
	// 6
	edid[block + offs++] = 0x37;  // aac, up to 8 ch.
	edid[block + offs++] = 0x1F;  // sample rates up to 96kHz
	edid[block + offs++] = 12;    // 96 kbit/sec
	// 7
	edid[block + offs++] = 0x3F;  // dts, up to 8 ch.
	edid[block + offs++] = 0x1F;  // sample rates up to 96kHz
	edid[block + offs++] = 12;    // 96 kbit/sec
	// 8
	edid[block + offs++] = 0x77;  // wma pro, up to 8 ch.
	edid[block + offs++] = 0x1F;  // sample rates up to 96kHz
	edid[block + offs++] = 0;     // reserved
	
	edid[block + offs++] = 0x83;  // speaker allocation
	edid[block + offs++] = 0x7F;  // all speakers
	edid[block + offs++] = 0x00;  // res.
	edid[block + offs++] = 0x00;  // res.
	
	edid[block + 2] = offs;
	
	return RM_OK;
}

// audio capabilities of one 192kHz SPDIF line (-source 1, HDMI 1.3 chip)
// Speaker allocation: all
static RMstatus edid_add_SPDIF192_audio_tag(RMuint8 *edid)
{
	RMuint32 block, offs;
	
	block = (edid[0x7E] << 7);
	
	if (edid[block + 3] & 0x0F) {
		RMDBGPRINT((ENABLE, "Extension already contains DTD!\n"));
		return RM_ERROR;
	}
	
	offs = edid[block + 2];
	
	edid[block + offs++] = 0x38;  // audio format, 8 descr.
	// 1
	edid[block + offs++] = 0x09;  // pcm, up to 2 ch.
	edid[block + offs++] = 0x7F;  // all sample rates
	edid[block + offs++] = 0x07;  // 16, 20, 24 bit
	// 2
	edid[block + offs++] = 0x17;  // ac3, up to 8 ch.
	edid[block + offs++] = 0x7F;  // all sample rates
	edid[block + offs++] = 24;    // 192 kbit/sec
	// 3
	edid[block + offs++] = 0x1F;  // mpeg1, up to 8 ch.
	edid[block + offs++] = 0x7F;  // all sample rates
	edid[block + offs++] = 24;    // 192 kbit/sec
	// 4
	edid[block + offs++] = 0x27;  // mp3, up to 8 ch.
	edid[block + offs++] = 0x7F;  // all sample rates
	edid[block + offs++] = 24;    // 192 kbit/sec
	// 5
	edid[block + offs++] = 0x2F;  // mpeg2, up to 8 ch.
	edid[block + offs++] = 0x7F;  // all sample rates
	edid[block + offs++] = 24;    // 192 kbit/sec
	// 6
	edid[block + offs++] = 0x37;  // aac, up to 8 ch.
	edid[block + offs++] = 0x7F;  // all sample rates
	edid[block + offs++] = 24;    // 192 kbit/sec
	// 7
	edid[block + offs++] = 0x3F;  // dts, up to 8 ch.
	edid[block + offs++] = 0x7F;  // all sample rates
	edid[block + offs++] = 24;    // 192 kbit/sec
	// 8
	edid[block + offs++] = 0x77;  // wma pro, up to 8 ch.
	edid[block + offs++] = 0x7F;  // all sample rates
	edid[block + offs++] = 0;     // reserved
	
	edid[block + offs++] = 0x83;  // speaker allocation
	edid[block + offs++] = 0x7F;  // all speakers
	edid[block + offs++] = 0x00;  // res.
	edid[block + offs++] = 0x00;  // res.
	
	edid[block + 2] = offs;
	
	return RM_OK;
}

// All codecs, all ch., all fs, 24 bit
// Speaker allocation L_R
static RMstatus edid_add_all_audio_tags(RMuint8 *edid)
{
	RMuint32 block, offs;
	
	block = (edid[0x7E] << 7);
	
	if (edid[block + 3] & 0x0F) {
		RMDBGPRINT((ENABLE, "Extension already contains DTD!\n"));
		return RM_ERROR;
	}
	
	offs = edid[block + 2];
	
	edid[block + offs++] = 0x3E;  // audio format, 10 descr.
	// 1
	edid[block + offs++] = 0x0F;  // pcm, up to 8 ch.
	edid[block + offs++] = 0x7F;  // all sample rates
	edid[block + offs++] = 0x07;  // 16, 20, 24 bit
	// 2
	edid[block + offs++] = 0x17;  // ac3, up to 8 ch.
	edid[block + offs++] = 0x7F;  // all sample rates
	edid[block + offs++] = 250;   // 2 Mbit/sec
	// 3
	edid[block + offs++] = 0x1F;  // mpeg1, up to 8 ch.
	edid[block + offs++] = 0x7F;  // all sample rates