📄 lcd_main.lst
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1058 5
1059 5 bVpole_Curr = 1;
1060 5 bHpole_Curr = 1;
1061 5 ucSync_Type = SYNC_CS;
1062 5 }
1063 4
1064 4 }
1065 3 }
1066 2 }
1067 1 else
1068 1 {
1069 2 if (ucMode_Found != ucMode_Temp)
1070 2 {
1071 3 ucMode_Times = 1;
1072 3 ucMode_Found = ucMode_Temp;
1073 3
1074 3 // To prevent from mistaking CS (with VS) for SS, we check SYNC type once when finding a mode
-in SS.
1075 3 if (SYNC_SS == ucSync_Type)
1076 3 {
1077 4 RTDSetByte(SYNC_CTRL_4B, 0x55);
1078 4
1079 4 RTDSetByte(SYNC_POR_4C, 0x22);
1080 4
1081 4 m = (MODE_DETECT_FREQ + 1) * 20;
1082 4 do
1083 4 {
1084 5 Delay_Xms(1);
1085 5 RTDRead(SYNC_POR_4C, 0x05, Y_INC);
1086 5 }
1087 4 while ((Data[0] & 0x02) && (--m));
1088 4
C51 COMPILER V7.50 LCD_MAIN 07/28/2008 16:10:53 PAGE 19
1089 4 Data[5] = Data[3];
1090 4 Data[4] = Data[4] & 0x87;
1091 4 Data[3] = Data[1];
1092 4 Data[2] = Data[2] & 0x8f;
1093 4
1094 4 if ((0 == ((unsigned int *)Data)[1]) || (0x07ff <= ((unsigned int *)Data)[1]) ||
1095 4 (0 == ((unsigned int *)Data)[2]) || (0x07ff <= ((unsigned int *)Data)[2]) ||
1096 4 (0 == m))
1097 4 {
1098 5 ucSync_Type = SYNC_SS;
1099 5
1100 5 RTDSetByte(SYNC_CTRL_4B, 0x14);
1101 5 }
1102 4 else
1103 4 {
1104 5 ucSync_Type = SYNC_CS;
1105 5
1106 5 RTDCodeW(VGA_SET_CS);
1107 5
1108 5 bVpole_Curr = 1;
1109 5 bHpole_Curr = 1;
1110 5 }
1111 4 }
1112 3 else if (SYNC_SOG == ucSync_Type)
1113 3 {
1114 4 RTDSetByte(SYNC_CTRL_4B, 0x14);
1115 4 Delay_Xms(8);
1116 4
1117 4 RTDSetByte(SYNC_POR_4C, 0x00);
1118 4 RTDSetByte(SYNC_POR_4C, 0x02);
1119 4
1120 4 m = (MODE_DETECT_FREQ + 1) * 20;
1121 4 do
1122 4 {
1123 5 Delay_Xms(1);
1124 5 RTDRead(SYNC_POR_4C, 0x05, Y_INC);
1125 5 }
1126 4 while ((Data[0] & 0x02) && (--m));
1127 4
1128 4 Data[5] = Data[3];
1129 4 Data[4] = Data[4] & 0x87;
1130 4 Data[3] = Data[1];
1131 4 Data[2] = Data[2] & 0x8f;
1132 4
1133 4 if ((0 == ((unsigned int *)Data)[1]) || (0x07ff <= ((unsigned int *)Data)[1]) ||
1134 4 (0 == ((unsigned int *)Data)[2]) || (0x07ff <= ((unsigned int *)Data)[2]) ||
1135 4 (0 == m))
1136 4 {
1137 5 ucSync_Type = SYNC_SOG;
1138 5
1139 5 RTDSetByte(SYNC_CTRL_4B, 0x57);
1140 5 Delay_Xms(8);
1141 5
1142 5 RTDSetByte(SYNC_POR_4C, 0x00);
1143 5 }
1144 4 else
1145 4 {
1146 5 ucSync_Type = SYNC_SS;
1147 5
1148 5 RTDCodeW(VGA_SET_SS);
1149 5
1150 5 bVpole_Curr = 1;
C51 COMPILER V7.50 LCD_MAIN 07/28/2008 16:10:53 PAGE 20
1151 5 bHpole_Curr = 1;
1152 5 }
1153 4 }
1154 3 }
1155 2 else
1156 2 {
1157 3 if (VGA_SEARCH_TIMES > ucMode_Times)
1158 3 {
1159 4 ucMode_Times ++;
1160 4 }
1161 3 else
1162 3 {
1163 4
1164 4 bLIGHT_PWR = LIGHT_OFF; // Turn off BackLight for reset display
1165 4
1166 4 RTDSetByte(HOSTCTRL_02, 0x40); // Wake RTD up
1167 4 RTDCodeW(OSD_Reset); // Clear OSD
1168 4
1169 4 ucMode_Curr = ucMode_Found; // Supported mode found
1170 4 ucMode_Times = 0; // Reset mode timer
1171 4 bStable = 0; // bStable must be cleared when mode changed
1172 4
1173 4 Display_VGA_Set(); // Set VGA Mode registers
1174 4
1175 4 #if (RTDDEBUG)
if (ucMode_PrevAct == ucMode_Curr)
{
if (0xff > ucMode_QuitCnt) ucMode_QuitCnt += 1;
}
else
{
ucMode_PrevAct = ucMode_Curr;
ucMode_QuitCnt = 0;
ucDebug = 0;
}
#endif
1187 4 }
1188 3 }
1189 2 }
1190 1 }
1191
1192 //------------------- Check VGA Mode -------------------//
1193 void Check_VGA_Mode(void)
1194 {
1195 1 RTDRead(SYNC_POR_4C, 0x05, Y_INC);
1196 1
1197 1 if (Data[0] & 0x02)
1198 1 {
1199 2 RTDSetByte(SYNC_POR_4C, 0x20); // Input signal time-out. Reset sync-processor
1200 2
1201 2 ucMode_Found = MODE_NOSUPPORT;
1202 2 }
1203 1 else
1204 1 {
1205 2 bVpole_Curr = (bit)(Data[0] & 0x08); // Current usVsync polarity
1206 2 bHpole_Curr = (bit)(Data[0] & 0x04); // Current usHsync polarity
1207 2
1208 2 Data[5] = Data[3];
1209 2 Data[4] = Data[4] & 0x87;
1210 2 Data[3] = Data[1];
1211 2 Data[2] = Data[2] & 0x8f;
1212 2 usHsync = ((unsigned int *)Data)[1]; // Current usHsync timing
C51 COMPILER V7.50 LCD_MAIN 07/28/2008 16:10:53 PAGE 21
1213 2 usVsync = ((unsigned int *)Data)[2]; // Current usVsync timing
1214 2
1215 2 // Polarity must be correct
1216 2 if ((bVpole_Curr != bVpole_Prev) || (bHpole_Curr != bHpole_Prev))
1217 2 {
1218 3 RTDRead(VGIP_SIGINV_05, 0x01, N_INC);
1219 3
1220 3 Data[0] &= 0xd7; // HS_RAW & VS positive
1221 3
1222 3 if (!bHpole_Curr) Data[0] |= 0x20;
1223 3
1224 3 if (!bVpole_Curr && SYNC_SS == ucSync_Type) Data[0] |= 0x08; // Seperate sync
1225 3
1226 3 RTDSetByte(VGIP_SIGINV_05, Data[0]);
1227 3
1228 3 ucMode_Found = MODE_NOSUPPORT;
1229 3 }
1230 2 else
1231 2 {
1232 3 if (0x07ff <= usHsync || 0x07ff <= usVsync || 0 == usHsync || 0 == usVsync) // Check overf
-low
1233 3 {
1234 4 ucMode_Found = MODE_NOSUPPORT;
1235 4 }
1236 3 else
1237 3 {
1238 4 if ((usHsync < (usStdHS - 1)) || (usHsync > (usStdHS + 3)) ||
1239 4 (usVsync < (usStdVS - 1)) || (usVsync > (usStdVS + 3)))
1240 4 {
1241 5 ucMode_Found = MODE_NOSUPPORT;
1242 5 }
1243 4 else
1244 4 {
1245 5 ucMode_Found = ucMode_Curr;
1246 5 }
1247 4 }
1248 3 }
1249 2 }
1250 1
1251 1 if (MODE_NOSUPPORT == ucMode_Found)
1252 1 {
1253 2 Reset_Mode();
1254 2 }
1255 1 else
1256 1 {
1257 2 bStable = 1; // Set bStable to 1 when signal timing is stable.
1258 2 LED_GREEN = 0X00;
1259 2 LED_RED = 0X01;
1260 2
1261 2 #if(AS_NON_FRAMESYNC)
RTDSetByte(STATUS0_01, 0x00); // Clear status
RTDSetByte(STATUS1_1F, 0x00); // Clear status
if(bFrameSync)
RTDSetBit(ODD_CTRL_8E,0xef,0x10);
#endif
1268 2 }
1269 1
1270 1 }
1271
1272
1273 /////////////////////////////////////////////////////////
C51 COMPILER V7.50 LCD_MAIN 07/28/2008 16:10:53 PAGE 22
1274 //------------------ Detect VIDEO Mode ----------------//
1275 /////////////////////////////////////////////////////////
1276 #if (VIDEO_CHIP == TW_9905)
void Reset_TW9905(void)
{
Delay_Xms(2);
bVDC_RESET=0;
Delay_Xms(20);
bVDC_RESET=1;
}
void I2CWrite_TW990X(unsigned char address,unsigned char wdata)
{
Data[0] = 4;
Data[1] = 0x8c;
Data[2] = address;
Data[3] = wdata;
I2CWrite(Data);
}
#endif
1293
1294 #if(TV_NONE != TV_CHIP || VIDEO_CHIP == TW_9905)
unsigned char I2CRead_TW990X(unsigned char address)
{
unsigned char rdata;
I2CSendAddr(0x8c, address, 0);
I2CSendAddr(0x8c, 0, 1);
rdata = I2CGetByte(1);
I2CSendStop();
return rdata;
}
#endif
1305
1306 #if(TV_CHIP != TV_NONE)
void Detect_TV_Mode(void)
{
ucAV_Mode = 0x02; //PAL 50HZ
ucMode_Curr = MODE_VIDEO50HZ;
Delay_Xms(20);
RTDCodeW(RTD_VIDEO_50);
Delay_Xms(10);
ucMode_Times=0;
bStable = 0;
Display_Video_Set();
Set_Panel(1);
}
void Check_TV_Mode(void)
{
RTDRead(VDIS_CTRL_20, 1, N_INC);
if (0 == (Data[0] & 0x08))
{
// Change to Frame-sync display
RTDSetBit(VDIS_CTRL_20, 0xf6, 0⌨️ 快捷键说明
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