abb_inth.c: check all interrupt causes, not just one The original code used if - else if - else if etc constructs, thus the first detected interrupt was the only one handled. However, Iota ITSTATREG is a clear-on-read register, thus if we only handle the first detected interrupt and skip checking the others, then the other interrupts will be lost, if more than one interrupt happened to occur in one ABB interrupt handling cycle - a form of rare race condition. Change the code to check all interrupts that were read in this cycle.

/*
 * This version of fflags.h (ccdgen config file) is a FreeCalypso concoction.
 * Here I set all feature flags to OFF in order to create a configuration
 * that mimics the TCS211 program.
 */

#undef  FF_PS_RSSI
#undef  SIM_PERS
#undef  FF_PHONE_LOCK
#undef  TI_PS_FF_AT_CMD_P_ECC
#undef  TI_PS_FF_REL99_AND_ABOVE
#undef  TI_DUAL_MODE
#undef  REL99
#undef  FF_BHO
#undef  TI_PS_FF_EMR
#undef  TI_PS_FF_RTD
#undef  FF_EGPRS
#undef  REL4
#undef  TI_PS_FF_TBF_EST_PACCH
#undef  TI_PS_FF_QUAD_BAND_SUPPORT