Adding basic support for LCDLayerDisplay using capabilities

[kiibohd-controller.git] / Scan / STLcd / lcd_scan.c

diff --git a/Scan/STLcd/lcd_scan.c b/Scan/STLcd/lcd_scan.c
index a7d7d44a09c9fbeb09520f65951bd1cb93871e43..639920b2ff5cf48276bf637befca0be621acbc4d 100644 (file)
--- a/Scan/STLcd/lcd_scan.c
+++ b/Scan/STLcd/lcd_scan.c
@@ -342,6 +342,95 @@ inline uint8_t LCD_scan()
 
 
 
+// ----- Capabilities -----
+
+uint16_t LCD_layerStack_prevSize = 0;
+void LCD_layerStack_capability( uint8_t state, uint8_t stateType, uint8_t *args )
+{
+       // Display capability name
+       if ( stateType == 0xFF && state == 0xFF )
+       {
+               print("LCD_layerStack_capability");
+               return;
+       }
+
+       // Parse the layer stack, top to bottom
+       extern uint16_t macroLayerIndexStack[];
+       extern uint16_t macroLayerIndexStackSize;
+
+       // Only process if the stack size has changed
+       if ( macroLayerIndexStackSize == LCD_layerStack_prevSize )
+       {
+               return;
+       }
+       LCD_layerStack_prevSize = macroLayerIndexStackSize;
+
+       // Number data for LCD
+       const uint8_t numbers[10][128] = {
+               { STLcdNumber0_define },
+               { STLcdNumber1_define },
+               { STLcdNumber2_define },
+               { STLcdNumber3_define },
+               { STLcdNumber4_define },
+               { STLcdNumber5_define },
+               { STLcdNumber6_define },
+               { STLcdNumber7_define },
+               { STLcdNumber8_define },
+               { STLcdNumber9_define },
+       };
+
+       // Only display if there are layers active
+       if ( macroLayerIndexStackSize > 0 )
+       {
+
+               // Iterate through each of the pages
+               // XXX Many of the values here are hard-coded
+               //     Eventually a proper font rendering engine should take care of things like this... -HaaTa
+               for ( uint8_t page = 0; page < LCD_TOTAL_VISIBLE_PAGES; page++ )
+               {
+                       // Set the register page
+                       LCD_writeControlReg( 0xB0 | ( 0x0F & page ) );
+
+                       // Set starting address
+                       LCD_writeControlReg( 0x10 );
+                       LCD_writeControlReg( 0x00 );
+
+                       // Write data
+                       for ( uint16_t layer = 1; layer <= macroLayerIndexStackSize; layer++ )
+                       {
+                               uint16_t layerIndex = macroLayerIndexStack[ macroLayerIndexStackSize - layer ];
+
+                               // Default to 0, if over 9
+                               if ( layerIndex > 9 )
+                               {
+                                       layerIndex = 0;
+                               }
+
+                               // Write page of number to display
+                               SPI_write( (uint8_t*)&numbers[ layerIndex ][ page * 32 ], 32 );
+                       }
+
+                       // Blank out rest of display
+                       uint8_t data = 0;
+                       for ( uint8_t c = 0; c < 4 - macroLayerIndexStackSize; c++ )
+                       {
+                               for ( uint8_t byte = 0; byte < 32; byte++ )
+                               {
+                                       SPI_write( &data, 1 );
+                               }
+                       }
+               }
+       }
+       else
+       {
+               // Write default image
+               for ( uint8_t page = 0; page < LCD_TOTAL_VISIBLE_PAGES; page++ )
+                       LCD_writeDisplayReg( page, (uint8_t *)&STLcdDefaultImage[page * LCD_PAGE_LEN], LCD_PAGE_LEN );
+       }
+}
+
+
+
 // ----- CLI Command Functions -----
 
 void cliFunc_lcdInit( char* args )