switch() always deault?

#include <xc.h>
#include "lcd.h"
#include  "lcd_extra.h"

// These are the line addresses for most 4x20 LCDs. 
#define LCD_LINE_1_ADDRESS 0x00 
#define LCD_LINE_2_ADDRESS 0x40 
#define LCD_LINE_3_ADDRESS 0x14 
#define LCD_LINE_4_ADDRESS 0x54 

//---------------------------- 

void lcd_gotoxy(unsigned int row, unsigned int column) {
    unsigned int address;


    switch (row) {
        case 1:
            address = LCD_LINE_1_ADDRESS;
            break;

        case 2:
            address = LCD_LINE_2_ADDRESS;
            break;

        case 3:
            address = LCD_LINE_3_ADDRESS;
            break;

        case 4:
            address = LCD_LINE_4_ADDRESS;
            break;

        default:
            address = LCD_LINE_1_ADDRESS;
            break;

    }
   
    column -= 1;
    address = (row + column);
    SetDDRamAddr(address);
   
}

address = (row + column);

address += column;