Touchscreen driver POC

Example documentation
2026-05-07 16:28:08 -07:00
parent c0ad8306a7
commit a125f45b34
201 changed files with 19783 additions and 34 deletions
@@ -0,0 +1,84 @@
+import logging
+from . import epdconfig as config
+
+class GT_Development:
+    def __init__(self):
+        self.Touch = 0
+        self.TouchpointFlag = 0
+        self.TouchCount = 0
+        self.Touchkeytrackid = [0, 1, 2, 3, 4]
+        self.X = [0, 1, 2, 3, 4]
+        self.Y = [0, 1, 2, 3, 4]
+        self.S = [0, 1, 2, 3, 4]
+    
+class GT1151:
+    def __init__(self):
+        # e-Paper
+        self.ERST = config.EPD_RST_PIN  
+        self.DC = config.EPD_DC_PIN
+        self.CS = config.EPD_CS_PIN
+        self.BUSY = config.EPD_BUSY_PIN
+        # TP
+        self.TRST = config.TRST
+        self.INT = config.INT
+
+    def digital_read(self, pin):
+        return config.digital_read(pin)
+    
+    def GT_Reset(self):
+        config.digital_write(self.TRST, 1)
+        config.delay_ms(100)
+        config.digital_write(self.TRST, 0)
+        config.delay_ms(100)
+        config.digital_write(self.TRST, 1)
+        config.delay_ms(100)
+
+    def GT_Write(self, Reg, Data):
+        config.i2c_writebyte(Reg, Data)
+
+    def GT_Read(self, Reg, len):
+        return config.i2c_readbyte(Reg, len)
+         
+    def GT_ReadVersion(self):
+        buf = self.GT_Read(0x8140, 4)
+        print(buf)
+
+    def GT_Init(self):
+        self.GT_Reset()
+        self.GT_ReadVersion()
+
+    def GT_Scan(self, GT_Dev, GT_Old):
+        buf = []
+        mask = 0x00
+        
+        if(GT_Dev.Touch == 1):
+            GT_Dev.Touch = 0
+            buf = self.GT_Read(0x814E, 1)
+            
+            if(buf[0]&0x80 == 0x00):
+                self.GT_Write(0x814E, mask)
+                config.delay_ms(10)
+                
+            else:
+                GT_Dev.TouchpointFlag = buf[0]&0x80
+                GT_Dev.TouchCount = buf[0]&0x0f
+                
+                if(GT_Dev.TouchCount > 5 or GT_Dev.TouchCount < 1):
+                    self.GT_Write(0x814E, mask)
+                    return
+                    
+                buf = self.GT_Read(0x814F, GT_Dev.TouchCount*8)
+                self.GT_Write(0x814E, mask)
+                
+                GT_Old.X[0] = GT_Dev.X[0];
+                GT_Old.Y[0] = GT_Dev.Y[0];
+                GT_Old.S[0] = GT_Dev.S[0];
+                
+                for i in range(0, GT_Dev.TouchCount, 1):
+                    GT_Dev.Touchkeytrackid[i] = buf[0 + 8*i] 
+                    GT_Dev.X[i] = (buf[2 + 8*i] << 8) + buf[1 + 8*i]
+                    GT_Dev.Y[i] = (buf[4 + 8*i] << 8) + buf[3 + 8*i]
+                    GT_Dev.S[i] = (buf[6 + 8*i] << 8) + buf[5 + 8*i]
+
+                print(GT_Dev.X[0], GT_Dev.Y[0], GT_Dev.S[0])
+