Added VCOM setting to panel definition

Author: bitbank2

src/FastEPD.h

@@ -67,9 +67,9 @@ enum {
     BB_PANEL_INKPLATE5V2,
     BB_PANEL_EPDIY_V7_16,
     BB_PANEL_V7_RAW,
-    BB_PANEL_V7_103,
     BB_PANEL_LILYGO_T5PRO,
     BB_PANEL_LILYGO_T5P4,
+    BB_PANEL_TRMNL_X,
     BB_PANEL_CUSTOM,
     BB_PANEL_VIRTUAL,
     BB_PANEL_COUNT
@@ -110,6 +110,7 @@ typedef struct _paneldef {
     const uint8_t *pGrayMatrix; // pointer to matrix of values (waveform) for 16 gray levels
     int iMatrixSize; // size of matrix in bytes
     int iLinePadding; // extra bytes needed for each transmission
+    int iVCOM; // VCOM in millivolts (e.g. -1600 = -1.6V)
 } BBPANELDEF;
 
 typedef struct bbepr {

src/FastEPD.inl

@@ -174,31 +174,31 @@ int bbepSetCustomMatrix(FASTEPDSTATE *pState, const uint8_t *pMatrix, size_t mat
 // width, height, bus_speed, flags, data[8], bus_width, ioPWR, ioSPV, ioCKV, ioSPH, ioOE, ioLE,
 // ioCL, ioPWR_Good, ioSDA, ioSCL, ioShiftSTR/Wakeup, ioShiftMask/vcom, ioDCDummy, graymatrix, sizeof(graymatrix), iLinePadding
 const BBPANELDEF panelDefs[] = {
-    {0,0,0,0,{0},0,0,0,0,0,0,0,0,0,0,0,0,0,0,NULL,0,0}, // BB_PANEL_NONE
+    {0,0,0,0,{0},0,0,0,0,0,0,0,0,0,0,0,0,0,0,NULL,0,0,0}, // BB_PANEL_NONE
     {960, 540, 20000000, BB_PANEL_FLAG_NONE, {6,14,7,12,9,11,8,10}, 8, 46, 17, 18, 13, 45, 15,
-      16, BB_NOT_USED, BB_NOT_USED, BB_NOT_USED, BB_NOT_USED, BB_NOT_USED, 47, u8M5Matrix, sizeof(u8M5Matrix), 0}, // BB_PANEL_M5PAPERS3
+      16, BB_NOT_USED, BB_NOT_USED, BB_NOT_USED, BB_NOT_USED, BB_NOT_USED, 47, u8M5Matrix, sizeof(u8M5Matrix), 0, -1600}, // BB_PANEL_M5PAPERS3
 
     {0, 0, 20000000, BB_PANEL_FLAG_NONE, {5,6,7,15,16,17,18,8}, 8, 11, 45, 48, 41, 8, 42,
-      4, 14, 39, 40, BB_NOT_USED, 0, 0, u8SixInchMatrix, sizeof(u8SixInchMatrix), 0}, // BB_PANEL_EPDIY_V7
+      4, 14, 39, 40, BB_NOT_USED, 0, 0, u8SixInchMatrix, sizeof(u8SixInchMatrix), 0, 0}, // BB_PANEL_EPDIY_V7
 
     {1024, 758, 13333333, BB_PANEL_FLAG_SLOW_SPH, {4,5,18,19,23,25,26,27}, 8, 4, 2, 32, 33, 0, 2,
-      0, 7, 21, 22, 3, 5, 15, u8GrayMatrix, sizeof(u8GrayMatrix), 0}, // BB_PANEL_INKPLATE6PLUS
+      0, 7, 21, 22, 3, 5, 15, u8GrayMatrix, sizeof(u8GrayMatrix), 0, -1600}, // BB_PANEL_INKPLATE6PLUS
 
     {1280, 720, 13333333, BB_PANEL_FLAG_SLOW_SPH | BB_PANEL_FLAG_MIRROR_X, {4,5,18,19,23,25,26,27}, 8, 4, 2, 32, 33, 0, 2,
-      0, 7, 21, 22, 3, 5, 0, u8Ink5V2Matrix, sizeof(u8Ink5V2Matrix), 16}, // BB_PANEL_INKPLATE5V2
+      0, 7, 21, 22, 3, 5, 0, u8Ink5V2Matrix, sizeof(u8Ink5V2Matrix), 16, -1600}, // BB_PANEL_INKPLATE5V2
 
     {0, 0, 20000000, BB_PANEL_FLAG_NONE, {9,10,11,12,13,14,21,47,5,6,7,15,16,17,18,8}, 16, 11, 45, 48, 41, 8, 42,
       4, 14, 39, 40, BB_NOT_USED, 0, 46, u8GrayMatrix, sizeof(u8GrayMatrix), 16}, // BB_PANEL_EPDIY_V7_16
 
     {0, 0, 26666666, BB_PANEL_FLAG_NONE, {5,6,7,15,16,17,18,8}, 8, 11, 45, 48, 41, 9, 42,
       4, 14, 39, 40, BB_NOT_USED, 0, 0, u8M5Matrix, sizeof(u8M5Matrix), 0}, // BB_PANEL_V7_RAW
     //                                             D8                 15 D0                  D7          STV,CKV,XSTL,OE,XLE
-    {1872, 1404, 20000000, BB_PANEL_FLAG_MIRROR_X, {8,18,17,16,15,7,6,5,47,21,14,13,12,11,10,9}, 16, 11, 41, 42, 45, 8, 48,
-      4, 14, 39, 40, BB_NOT_USED, 0, 46, u8GrayMatrix, sizeof(u8GrayMatrix), 0}, // BB_PANEL_V7_103
     {960, 540, 20000000, BB_PANEL_FLAG_SLOW_SPH, {11,12,13,14,21,47,45,38}, 8, BB_NOT_USED, BB_NOT_USED, 39, 9, 0, 0,
-      10, 0, 2, 42, 1, 0, 46 /* LoRa CS */, u8M5Matrix, sizeof(u8M5Matrix), 0}, // BB_PANEL_LILYGO_T5PRO 
+      10, 0, 2, 42, 1, 0, 46 /* LoRa CS */, u8M5Matrix, sizeof(u8M5Matrix), 0, -1600}, // BB_PANEL_LILYGO_T5PRO 
     {1440, 720, 40000000, BB_PANEL_FLAG_MIRROR_X, {27,28,29,30,31,32,33,34}, 8, BB_NOT_USED, 36, 13, 25, 0, 26,
-      24, 0, 7, 8, 0, 0, 11 /* LED1_EN */, u8M5Matrix, sizeof(u8M5Matrix), 0}, // BB_PANEL_LILYGO_T5P4 
+      24, 0, 7, 8, 0, 0, 11 /* LED1_EN */, u8M5Matrix, sizeof(u8M5Matrix), 0, -1600}, // BB_PANEL_LILYGO_T5P4 
+    {1872, 1404, 26666666, BB_PANEL_FLAG_MIRROR_X, {8,18,17,16,15,7,6,5,47,21,14,13,12,11,10,9}, 16, 11, 48, 45, 41, 8, 42,
+      4, 14, 39, 40, BB_NOT_USED, 0, 46, u8GrayMatrix, sizeof(u8GrayMatrix), 16, -1350}, // BB_PANEL_TRMNL_X
 };
 //
 // Forward references for panel callback functions
@@ -243,6 +243,7 @@ const BBPANELPROCS panelProcs[] = {
     {EPDiyV7EinkPower, EPDiyV7IOInit, EPDiyV7RowControl, EPDiyV7IODeInit, EPDiyV7ExtIO}, // BB_PANEL_V7_103
     {LilyGoEinkPower, LilyGoIOInit, LilyGoRowControl, NULL, NULL},// BB_PANEL_LILYGO_T5PRO
     {EPDiyV7EinkPower, EPDiyV7IOInit, EPDiyV7RowControl, EPDiyV7IODeInit, EPDiyV7ExtIO}, // BB_PANEL_LILYGO_T5P4  
+    {EPDiyV7EinkPower, EPDiyV7IOInit, EPDiyV7RowControl, EPDiyV7IODeInit, EPDiyV7ExtIO}, // BB_PANEL_TRMNL_X
 };
 
 uint8_t ioRegs[24]; // MCP23017 copy of I/O register state so that we can just write new bits
@@ -1447,6 +1448,8 @@ int bbepInitPanel(FASTEPDSTATE *pState, int iPanel, uint32_t u32Speed)
         if (rc == BBEP_SUCCESS) {
             // allocate memory for the buffers if the paneldef contains the size
             if (pState->width) { // if size is defined
+                // VCOM is defined for predefined products
+                pState->iVCOM = pState->panelDef.iVCOM;
                 rc = bbepSetPanelSize(pState, pState->width, pState->height, pState->iFlags, pState->iVCOM);
                 if (rc != BBEP_SUCCESS) return rc; // no memory? stop
             }