ADC (Analog to digital)

hi!
i want to read adc input on my smdkc210.
my cpu (S5PV210) supports adc multiplexing with analog pins: ain0~9 

for example i can read touch screen data with this register mapping:

unsigned long volatile const * v1= (unsigned long *) 0xF083C00C;
unsigned long data = *v1;

where (0xF083C00C is : ts_base + S3CADCDAT0)
but this register always return one of adcAins.
how can i read the others(ain0~9) in this method?