diff options
Diffstat (limited to 'tmk_core/protocol/usb_hid/USB_Host_Shield_2.0/examples/HID/scale/scale_rptparser.cpp')
-rw-r--r-- | tmk_core/protocol/usb_hid/USB_Host_Shield_2.0/examples/HID/scale/scale_rptparser.cpp | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/tmk_core/protocol/usb_hid/USB_Host_Shield_2.0/examples/HID/scale/scale_rptparser.cpp b/tmk_core/protocol/usb_hid/USB_Host_Shield_2.0/examples/HID/scale/scale_rptparser.cpp new file mode 100644 index 0000000000..01ed980cfb --- /dev/null +++ b/tmk_core/protocol/usb_hid/USB_Host_Shield_2.0/examples/HID/scale/scale_rptparser.cpp @@ -0,0 +1,150 @@ +/* Parser for standard HID scale (usage page 0x8d) data input report (ID 3) */ +#include "scale_rptparser.h" + +const char* UNITS[13] = { + "units", // unknown unit + "mg", // milligram + "g", // gram + "kg", // kilogram + "cd", // carat + "taels", // lian + "gr", // grain + "dwt", // pennyweight + "tonnes", // metric tons + "tons", // avoir ton + "ozt", // troy ounce + "oz", // ounce + "lbs" // pound +}; + +ScaleReportParser::ScaleReportParser(ScaleEvents *evt) : + scaleEvents(evt) +{} + +void ScaleReportParser::Parse(HID *hid, bool is_rpt_id, uint8_t len, uint8_t *buf) +{ + bool match = true; + + // Checking if there are changes in report since the method was last called + for (uint8_t i=0; i<RPT_SCALE_LEN; i++) { + if( buf[i] != oldScale[i] ) { + match = false; + break; + } + } + // Calling Game Pad event handler + if (!match && scaleEvents) { + scaleEvents->OnScaleChanged((const ScaleEventData*)buf); + + for (uint8_t i=0; i<RPT_SCALE_LEN; i++) oldScale[i] = buf[i]; + } +} + +ScaleEvents::ScaleEvents( Max_LCD* pLCD ) : + + pLcd( pLCD ) + +{} + +void ScaleEvents::LcdPrint( const char* str ) +{ + + while( *str ) { + + pLcd->write( *str++ ); + + } +} + +void ScaleEvents::OnScaleChanged(const ScaleEventData *evt) +{ + + pLcd->clear(); + pLcd->home(); + pLcd->setCursor(0,0); + + if( evt->reportID != 3 ) { + + const char inv_report[]="Invalid report!"; + + Serial.println(inv_report); + LcdPrint(inv_report); + + return; + + }//if( evt->reportID != 3... + + switch( evt->status ) { + + case REPORT_FAULT: + Serial.println(F("Report fault")); + break; + + case ZEROED: + Serial.println(F("Scale zero set")); + break; + + case WEIGHING: { + + const char progress[] = "Weighing..."; + Serial.println(progress); + LcdPrint(progress); + break; + } + + case WEIGHT_VALID: { + + char buf[10]; + double weight = evt->weight * pow( 10, evt->exp ); + + + + Serial.print(F("Weight: ")); + Serial.print( weight ); + Serial.print(F(" ")); + Serial.println( UNITS[ evt->unit ]); + + LcdPrint("Weight: "); + dtostrf( weight, 4, 2, buf ); + LcdPrint( buf ); + LcdPrint( UNITS[ evt->unit ]); + + break; + + }//case WEIGHT_VALID... + + case WEIGHT_NEGATIVE: { + + const char negweight[] = "Negative weight"; + Serial.println(negweight); + LcdPrint(negweight); + break; + } + + case OVERWEIGHT: { + + const char overweight[] = "Max.weight reached"; + Serial.println(overweight); + LcdPrint( overweight ); + break; + } + + case CALIBRATE_ME: + + Serial.println(F("Scale calibration required")); + break; + + case ZERO_ME: + + Serial.println(F("Scale zeroing required")); + break; + + default: + + Serial.print(F("Undefined status code: ")); + Serial.println( evt->status ); + break; + + }//switch( evt->status... + +} |