tmk_core/protocol/usb_hid/USB_Host_Shield_2.0/examples/HID/scale/scale_rptparser.h

   1 #if !defined(__SCALERPTPARSER_H__)
   2 #define __SCALERPTPARSER_H__
   3
   4 #include <max_LCD.h>
   5 #include <hid.h>
   6
   7 /* Scale status constants */
   8 #define REPORT_FAULT 0x01
   9 #define ZEROED 0x02
  10 #define WEIGHING 0x03
  11 #define WEIGHT_VALID 0x04
  12 #define WEIGHT_NEGATIVE 0x05
  13 #define OVERWEIGHT 0x06
  14 #define CALIBRATE_ME 0x07
  15 #define ZERO_ME 0x08
  16
  17 /* input data report */
  18 struct ScaleEventData
  19 {
  20   uint8_t reportID;     //must be 3
  21   uint8_t status;
  22   uint8_t unit;
  23   int8_t exp;                   //scale factor for the weight
  24   uint16_t weight;      //
  25 };
  26
  27 class ScaleEvents
  28 {
  29
  30         Max_LCD*        pLcd;
  31
  32         void LcdPrint( const char* str );
  33
  34 public:
  35
  36         ScaleEvents( Max_LCD* pLCD );
  37
  38         virtual void OnScaleChanged(const ScaleEventData *evt);
  39 };
  40
  41 #define RPT_SCALE_LEN   sizeof(ScaleEventData)/sizeof(uint8_t)
  42
  43 class ScaleReportParser : public HIDReportParser
  44 {
  45         ScaleEvents             *scaleEvents;
  46
  47   uint8_t oldScale[RPT_SCALE_LEN];
  48
  49 public:
  50         ScaleReportParser(ScaleEvents *evt);
  51
  52         virtual void Parse(HID *hid, bool is_rpt_id, uint8_t len, uint8_t *buf);
  53 };
  54
  55 #endif // __SCALERPTPARSER_H__