static bool vexpress_cfgctrl_read(arm_sysctl_state *s, unsigned int dcc, unsigned int function, unsigned int site, unsigned int position, unsigned int device, uint32_t *val) { /* We don't support anything other than DCC 0, board stack position 0 * or sites other than motherboard/daughterboard: */ if (dcc != 0 || position != 0 || (site != SYS_CFG_SITE_MB && site != SYS_CFG_SITE_DB1)) { goto cfgctrl_unimp; } switch (function) { case SYS_CFG_VOLT: if (site == SYS_CFG_SITE_DB1 && device < s->db_num_vsensors) { *val = s->db_voltage[device]; return true; } if (site == SYS_CFG_SITE_MB && device == 0) { /* There is only one motherboard voltage sensor: * VIO : 3.3V : bus voltage between mother and daughterboard */ *val = 3300000; return true; } break; case SYS_CFG_OSC: if (site == SYS_CFG_SITE_MB && device < sizeof(s->mb_clock)) { /* motherboard clock */ *val = s->mb_clock[device]; return true; } if (site == SYS_CFG_SITE_DB1 && device < s->db_num_clocks) { /* daughterboard clock */ *val = s->db_clock[device]; return true; } break; default: break; } cfgctrl_unimp: qemu_log_mask(LOG_UNIMP, "arm_sysctl: Unimplemented SYS_CFGCTRL read of function " "0x%x DCC 0x%x site 0x%x position 0x%x device 0x%x\n", function, dcc, site, position, device); return false; }