app/models/extface/driver/star_tsp200.rb in extface-0.1.4 vs app/models/extface/driver/star_tsp200.rb in extface-0.1.5

@@ -10,7 +10,41 @@
     PRINT = true #POS, slip printers
     FISCAL = false #cash registers, fiscal printers
     REPORT = false #only transmit data that must be parsed by handler, CDR, report devices
 
     has_serial_config
+    
+    def handle(buffer)
+      #expecting only 1 status byte, move it to receive_buffer
+      rpush buffer
+      return buffer.length # return number of bytes processed
+    end
+    
+    def autocut(partial = true)
+      # <ESC> “d” “0” - Full-cut command
+      # <ESC> “d” “1” - Partial-cut command
+      push "\r\n\r\n\r\n"
+      push partial ? "\x1B\x64\x31" : "\x1B\x64\x30"
+    end
+    
+    def check_status
+      flush
+      push "\x05" # <ENQ>   - Causes the printer to transmit a status byte
+      if status = pull(3) #wait 3 sec for data
+        human_status_errors(status)
+        return errors.empty?
+      else
+        errors.add :base, "No data received from device"
+        return false
+      end
+    end
+    
+    def human_status_errors(status_byte)
+      errors.add :base, "Vertical parity error" unless (status_byte.ord & 0x01).zero?
+      errors.add :base, "Framing error" unless (status_byte.ord & 0x02).zero?
+      errors.add :base, "Mechanical error" unless (status_byte.ord & 0x04).zero?
+      errors.add :base, "Receipt paper empty" unless (status_byte.ord & 0x08).zero?
+      errors.add :base, "Buffer overflow" unless (status_byte.ord & 0x40).zero?
+    end
+
   end
 end