add Panasonic hack for improving line count tolerance with line2x

software/sys_controller/ossc/av_controller.c

@@ -328,7 +328,8 @@ status_t get_status(tvp_sync_input_t syncinput)
         (tc.v_mask != cm.cc.v_mask) ||
         (tc.mask_br != cm.cc.mask_br) ||
         (tc.ar_256col != cm.cc.ar_256col) ||
-        (tc.reverse_lpf != cm.cc.reverse_lpf))
+        (tc.reverse_lpf != cm.cc.reverse_lpf) ||
+        (tc.panasonic_hack != cm.cc.panasonic_hack))
         status = (status < SC_CONFIG_CHANGE) ? SC_CONFIG_CHANGE : status;
 
     if (tc.sync_vth != cm.cc.sync_vth)
@@ -529,6 +530,7 @@ void update_sc_config()
 
     misc_config.rev_lpf_str = cm.cc.reverse_lpf;
     misc_config.mask_br = cm.cc.mask_br;
+    misc_config.panasonic_hack = cm.cc.panasonic_hack;
 
     sl_config.sl_l_str_arr = sl_l_str_arr;
     sl_config.sl_l_overlay = sl_l_overlay;

software/sys_controller/ossc/avconfig.h

@@ -108,6 +108,7 @@ typedef struct {
     alt_u8 full_tx_setup;
     alt_u8 vga_ilace_fix;
     alt_u8 av3_alt_rgb;
+    alt_u8 panasonic_hack;
     alt_u8 reverse_lpf;
     alt_u8 audio_dw_sampl;
     alt_u8 audio_swap_lr;

software/sys_controller/ossc/menu.c

@@ -191,6 +191,7 @@ MENU(menu_compatibility, P99_PROTECT({ \
     { LNG("Full TX setup","ﾌﾙTXｾｯﾄｱｯﾌﾟ"),         OPT_AVCONFIG_SELECTION, { .sel = { &tc.full_tx_setup,    OPT_WRAP, SETTING_ITEM(off_on_desc) } } },
     { LNG("AV3 interlacefix","AV3ｲﾝﾀｰﾚｰｽｼｭｳｾｲ"),  OPT_AVCONFIG_SELECTION, { .sel = { &tc.vga_ilace_fix,   OPT_WRAP, SETTING_ITEM(off_on_desc) } } },
     { "AV3 use AV1 RGB",                        OPT_AVCONFIG_SELECTION, { .sel = { &tc.av3_alt_rgb,     OPT_WRAP, SETTING_ITEM(off_on_desc) } } },
+    { "Panasonic hack",                        OPT_AVCONFIG_SELECTION, { .sel = { &tc.panasonic_hack,   OPT_WRAP, SETTING_ITEM(off_on_desc) } } },
 }))
 
 #ifdef ENABLE_AUDIO

software/sys_controller_bsp/drivers/inc/sc_config_regs.h

@@ -94,7 +94,8 @@ typedef union {
     struct {
         alt_u8 mask_br:4;
         alt_u8 rev_lpf_str:5;
-        alt_u32 misc_rsv:23;
+        alt_u8 panasonic_hack:1;
+        alt_u32 misc_rsv:22;
     } __attribute__((packed, __may_alias__));
     alt_u32 data;
 } misc_config_reg;