+static uint8_t pmbus_receive_byte(SMBusDevice *smd)
+{
+ PMBusDevice *pmdev = PMBUS_DEVICE(smd);
+ PMBusDeviceClass *pmdc = PMBUS_DEVICE_GET_CLASS(pmdev);
+ uint8_t ret = 0xFF;
+ uint8_t index = pmdev->page;
+
+ if (pmdev->out_buf_len != 0) {
+ ret = pmbus_out_buf_pop(pmdev);
+ return ret;
+ }
+
+ switch (pmdev->code) {
+ case PMBUS_PAGE:
+ pmbus_send8(pmdev, pmdev->page);
+ break;
+
+ case PMBUS_OPERATION: /* R/W byte */
+ pmbus_send8(pmdev, pmdev->pages[index].operation);
+ break;
+
+ case PMBUS_ON_OFF_CONFIG: /* R/W byte */
+ pmbus_send8(pmdev, pmdev->pages[index].on_off_config);
+ break;
+
+ case PMBUS_PHASE: /* R/W byte */
+ pmbus_send8(pmdev, pmdev->pages[index].phase);
+ break;
+
+ case PMBUS_WRITE_PROTECT: /* R/W byte */
+ pmbus_send8(pmdev, pmdev->pages[index].write_protect);
+ break;
+
+ case PMBUS_CAPABILITY:
+ pmbus_send8(pmdev, pmdev->capability);
+ break;
+
+ case PMBUS_VOUT_MODE: /* R/W byte */
+ if (pmdev->pages[index].page_flags & PB_HAS_VOUT_MODE) {
+ pmbus_send8(pmdev, pmdev->pages[index].vout_mode);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_VOUT_COMMAND: /* R/W word */
+ if (pmdev->pages[index].page_flags & PB_HAS_VOUT) {
+ pmbus_send16(pmdev, pmdev->pages[index].vout_command);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_VOUT_TRIM: /* R/W word */
+ if (pmdev->pages[index].page_flags & PB_HAS_VOUT) {
+ pmbus_send16(pmdev, pmdev->pages[index].vout_trim);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_VOUT_CAL_OFFSET: /* R/W word */
+ if (pmdev->pages[index].page_flags & PB_HAS_VOUT) {
+ pmbus_send16(pmdev, pmdev->pages[index].vout_cal_offset);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_VOUT_MAX: /* R/W word */
+ if (pmdev->pages[index].page_flags & PB_HAS_VOUT) {
+ pmbus_send16(pmdev, pmdev->pages[index].vout_max);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_VOUT_MARGIN_HIGH: /* R/W word */
+ if (pmdev->pages[index].page_flags & PB_HAS_VOUT_MARGIN) {
+ pmbus_send16(pmdev, pmdev->pages[index].vout_margin_high);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_VOUT_MARGIN_LOW: /* R/W word */
+ if (pmdev->pages[index].page_flags & PB_HAS_VOUT_MARGIN) {
+ pmbus_send16(pmdev, pmdev->pages[index].vout_margin_low);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_VOUT_TRANSITION_RATE: /* R/W word */
+ if (pmdev->pages[index].page_flags & PB_HAS_VOUT) {
+ pmbus_send16(pmdev, pmdev->pages[index].vout_transition_rate);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_VOUT_DROOP: /* R/W word */
+ if (pmdev->pages[index].page_flags & PB_HAS_VOUT) {
+ pmbus_send16(pmdev, pmdev->pages[index].vout_droop);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_VOUT_SCALE_LOOP: /* R/W word */
+ if (pmdev->pages[index].page_flags & PB_HAS_VOUT) {
+ pmbus_send16(pmdev, pmdev->pages[index].vout_scale_loop);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_VOUT_SCALE_MONITOR: /* R/W word */
+ if (pmdev->pages[index].page_flags & PB_HAS_VOUT) {
+ pmbus_send16(pmdev, pmdev->pages[index].vout_scale_monitor);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ /* TODO: implement coefficients support */
+
+ case PMBUS_POUT_MAX: /* R/W word */
+ if (pmdev->pages[index].page_flags & PB_HAS_POUT) {
+ pmbus_send16(pmdev, pmdev->pages[index].pout_max);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_VIN_ON: /* R/W word */
+ if (pmdev->pages[index].page_flags & PB_HAS_VIN) {
+ pmbus_send16(pmdev, pmdev->pages[index].vin_on);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_VIN_OFF: /* R/W word */
+ if (pmdev->pages[index].page_flags & PB_HAS_VIN) {
+ pmbus_send16(pmdev, pmdev->pages[index].vin_off);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_IOUT_CAL_GAIN: /* R/W word */
+ if (pmdev->pages[index].page_flags & PB_HAS_IOUT_GAIN) {
+ pmbus_send16(pmdev, pmdev->pages[index].iout_cal_gain);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_VOUT_OV_FAULT_LIMIT: /* R/W word */
+ if (pmdev->pages[index].page_flags & PB_HAS_VOUT) {
+ pmbus_send16(pmdev, pmdev->pages[index].vout_ov_fault_limit);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_VOUT_OV_FAULT_RESPONSE: /* R/W byte */
+ if (pmdev->pages[index].page_flags & PB_HAS_VOUT) {
+ pmbus_send8(pmdev, pmdev->pages[index].vout_ov_fault_response);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_VOUT_OV_WARN_LIMIT: /* R/W word */
+ if (pmdev->pages[index].page_flags & PB_HAS_VOUT) {
+ pmbus_send16(pmdev, pmdev->pages[index].vout_ov_warn_limit);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_VOUT_UV_WARN_LIMIT: /* R/W word */
+ if (pmdev->pages[index].page_flags & PB_HAS_VOUT) {
+ pmbus_send16(pmdev, pmdev->pages[index].vout_uv_warn_limit);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_VOUT_UV_FAULT_LIMIT: /* R/W word */
+ if (pmdev->pages[index].page_flags & PB_HAS_VOUT) {
+ pmbus_send16(pmdev, pmdev->pages[index].vout_uv_fault_limit);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_VOUT_UV_FAULT_RESPONSE: /* R/W byte */
+ if (pmdev->pages[index].page_flags & PB_HAS_VOUT) {
+ pmbus_send8(pmdev, pmdev->pages[index].vout_uv_fault_response);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_IOUT_OC_FAULT_LIMIT: /* R/W word */
+ if (pmdev->pages[index].page_flags & PB_HAS_IOUT) {
+ pmbus_send16(pmdev, pmdev->pages[index].iout_oc_fault_limit);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_IOUT_OC_FAULT_RESPONSE: /* R/W byte */
+ if (pmdev->pages[index].page_flags & PB_HAS_IOUT) {
+ pmbus_send8(pmdev, pmdev->pages[index].iout_oc_fault_response);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_IOUT_OC_LV_FAULT_LIMIT: /* R/W word */
+ if (pmdev->pages[index].page_flags & PB_HAS_IOUT) {
+ pmbus_send16(pmdev, pmdev->pages[index].iout_oc_lv_fault_limit);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_IOUT_OC_LV_FAULT_RESPONSE: /* R/W byte */
+ if (pmdev->pages[index].page_flags & PB_HAS_IOUT) {
+ pmbus_send8(pmdev, pmdev->pages[index].iout_oc_lv_fault_response);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_IOUT_OC_WARN_LIMIT: /* R/W word */
+ if (pmdev->pages[index].page_flags & PB_HAS_IOUT) {
+ pmbus_send16(pmdev, pmdev->pages[index].iout_oc_warn_limit);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_IOUT_UC_FAULT_LIMIT: /* R/W word */
+ if (pmdev->pages[index].page_flags & PB_HAS_IOUT) {
+ pmbus_send16(pmdev, pmdev->pages[index].iout_uc_fault_limit);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_IOUT_UC_FAULT_RESPONSE: /* R/W byte */
+ if (pmdev->pages[index].page_flags & PB_HAS_IOUT) {
+ pmbus_send8(pmdev, pmdev->pages[index].iout_uc_fault_response);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_OT_FAULT_LIMIT: /* R/W word */
+ if (pmdev->pages[index].page_flags & PB_HAS_TEMPERATURE) {
+ pmbus_send16(pmdev, pmdev->pages[index].ot_fault_limit);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_OT_FAULT_RESPONSE: /* R/W byte */
+ if (pmdev->pages[index].page_flags & PB_HAS_TEMPERATURE) {
+ pmbus_send8(pmdev, pmdev->pages[index].ot_fault_response);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_OT_WARN_LIMIT: /* R/W word */
+ if (pmdev->pages[index].page_flags & PB_HAS_TEMPERATURE) {
+ pmbus_send16(pmdev, pmdev->pages[index].ot_warn_limit);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_UT_WARN_LIMIT: /* R/W word */
+ if (pmdev->pages[index].page_flags & PB_HAS_TEMPERATURE) {
+ pmbus_send16(pmdev, pmdev->pages[index].ut_warn_limit);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_UT_FAULT_LIMIT: /* R/W word */
+ if (pmdev->pages[index].page_flags & PB_HAS_TEMPERATURE) {
+ pmbus_send16(pmdev, pmdev->pages[index].ut_fault_limit);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_UT_FAULT_RESPONSE: /* R/W byte */
+ if (pmdev->pages[index].page_flags & PB_HAS_TEMPERATURE) {
+ pmbus_send8(pmdev, pmdev->pages[index].ut_fault_response);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_VIN_OV_FAULT_LIMIT: /* R/W word */
+ if (pmdev->pages[index].page_flags & PB_HAS_VIN) {
+ pmbus_send16(pmdev, pmdev->pages[index].vin_ov_fault_limit);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_VIN_OV_FAULT_RESPONSE: /* R/W byte */
+ if (pmdev->pages[index].page_flags & PB_HAS_VIN) {
+ pmbus_send8(pmdev, pmdev->pages[index].vin_ov_fault_response);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_VIN_OV_WARN_LIMIT: /* R/W word */
+ if (pmdev->pages[index].page_flags & PB_HAS_VIN) {
+ pmbus_send16(pmdev, pmdev->pages[index].vin_ov_warn_limit);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_VIN_UV_WARN_LIMIT: /* R/W word */
+ if (pmdev->pages[index].page_flags & PB_HAS_VIN) {
+ pmbus_send16(pmdev, pmdev->pages[index].vin_uv_warn_limit);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_VIN_UV_FAULT_LIMIT: /* R/W word */
+ if (pmdev->pages[index].page_flags & PB_HAS_VIN) {
+ pmbus_send16(pmdev, pmdev->pages[index].vin_uv_fault_limit);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_VIN_UV_FAULT_RESPONSE: /* R/W byte */
+ if (pmdev->pages[index].page_flags & PB_HAS_VIN) {
+ pmbus_send8(pmdev, pmdev->pages[index].vin_uv_fault_response);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_IIN_OC_FAULT_LIMIT: /* R/W word */
+ if (pmdev->pages[index].page_flags & PB_HAS_IIN) {
+ pmbus_send16(pmdev, pmdev->pages[index].iin_oc_fault_limit);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_IIN_OC_FAULT_RESPONSE: /* R/W byte */
+ if (pmdev->pages[index].page_flags & PB_HAS_IIN) {
+ pmbus_send8(pmdev, pmdev->pages[index].iin_oc_fault_response);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_IIN_OC_WARN_LIMIT: /* R/W word */
+ if (pmdev->pages[index].page_flags & PB_HAS_IIN) {
+ pmbus_send16(pmdev, pmdev->pages[index].iin_oc_warn_limit);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_POUT_OP_FAULT_LIMIT: /* R/W word */
+ if (pmdev->pages[index].page_flags & PB_HAS_POUT) {
+ pmbus_send16(pmdev, pmdev->pages[index].pout_op_fault_limit);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_POUT_OP_FAULT_RESPONSE: /* R/W byte */
+ if (pmdev->pages[index].page_flags & PB_HAS_POUT) {
+ pmbus_send8(pmdev, pmdev->pages[index].pout_op_fault_response);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_POUT_OP_WARN_LIMIT: /* R/W word */
+ if (pmdev->pages[index].page_flags & PB_HAS_POUT) {
+ pmbus_send16(pmdev, pmdev->pages[index].pout_op_warn_limit);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_PIN_OP_WARN_LIMIT: /* R/W word */
+ if (pmdev->pages[index].page_flags & PB_HAS_PIN) {
+ pmbus_send16(pmdev, pmdev->pages[index].pin_op_warn_limit);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_STATUS_BYTE: /* R/W byte */
+ pmbus_send8(pmdev, pmdev->pages[index].status_word & 0xFF);
+ break;
+
+ case PMBUS_STATUS_WORD: /* R/W word */
+ pmbus_send16(pmdev, pmdev->pages[index].status_word);
+ break;
+
+ case PMBUS_STATUS_VOUT: /* R/W byte */
+ if (pmdev->pages[index].page_flags & PB_HAS_VOUT) {
+ pmbus_send8(pmdev, pmdev->pages[index].status_vout);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_STATUS_IOUT: /* R/W byte */
+ if (pmdev->pages[index].page_flags & PB_HAS_IOUT) {
+ pmbus_send8(pmdev, pmdev->pages[index].status_iout);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_STATUS_INPUT: /* R/W byte */
+ if (pmdev->pages[index].page_flags & PB_HAS_VIN ||
+ pmdev->pages[index].page_flags & PB_HAS_IIN ||
+ pmdev->pages[index].page_flags & PB_HAS_PIN) {
+ pmbus_send8(pmdev, pmdev->pages[index].status_input);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_STATUS_TEMPERATURE: /* R/W byte */
+ if (pmdev->pages[index].page_flags & PB_HAS_TEMPERATURE) {
+ pmbus_send8(pmdev, pmdev->pages[index].status_temperature);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_STATUS_CML: /* R/W byte */
+ pmbus_send8(pmdev, pmdev->pages[index].status_cml);
+ break;
+
+ case PMBUS_STATUS_OTHER: /* R/W byte */
+ pmbus_send8(pmdev, pmdev->pages[index].status_other);
+ break;
+
+ case PMBUS_READ_EIN: /* Read-Only block 5 bytes */
+ if (pmdev->pages[index].page_flags & PB_HAS_EIN) {
+ pmbus_send(pmdev, pmdev->pages[index].read_ein, 5);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_READ_EOUT: /* Read-Only block 5 bytes */
+ if (pmdev->pages[index].page_flags & PB_HAS_EOUT) {
+ pmbus_send(pmdev, pmdev->pages[index].read_eout, 5);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_READ_VIN: /* Read-Only word */
+ if (pmdev->pages[index].page_flags & PB_HAS_VIN) {
+ pmbus_send16(pmdev, pmdev->pages[index].read_vin);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_READ_IIN: /* Read-Only word */
+ if (pmdev->pages[index].page_flags & PB_HAS_IIN) {
+ pmbus_send16(pmdev, pmdev->pages[index].read_iin);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_READ_VOUT: /* Read-Only word */
+ if (pmdev->pages[index].page_flags & PB_HAS_VOUT) {
+ pmbus_send16(pmdev, pmdev->pages[index].read_vout);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_READ_IOUT: /* Read-Only word */
+ if (pmdev->pages[index].page_flags & PB_HAS_IOUT) {
+ pmbus_send16(pmdev, pmdev->pages[index].read_iout);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_READ_TEMPERATURE_1: /* Read-Only word */
+ if (pmdev->pages[index].page_flags & PB_HAS_TEMPERATURE) {
+ pmbus_send16(pmdev, pmdev->pages[index].read_temperature_1);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_READ_TEMPERATURE_2: /* Read-Only word */
+ if (pmdev->pages[index].page_flags & PB_HAS_TEMP2) {
+ pmbus_send16(pmdev, pmdev->pages[index].read_temperature_2);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_READ_TEMPERATURE_3: /* Read-Only word */
+ if (pmdev->pages[index].page_flags & PB_HAS_TEMP3) {
+ pmbus_send16(pmdev, pmdev->pages[index].read_temperature_3);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_READ_POUT: /* Read-Only word */
+ if (pmdev->pages[index].page_flags & PB_HAS_POUT) {
+ pmbus_send16(pmdev, pmdev->pages[index].read_pout);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_READ_PIN: /* Read-Only word */
+ if (pmdev->pages[index].page_flags & PB_HAS_PIN) {
+ pmbus_send16(pmdev, pmdev->pages[index].read_pin);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_REVISION: /* Read-Only byte */
+ pmbus_send8(pmdev, pmdev->pages[index].revision);
+ break;
+
+ case PMBUS_MFR_ID: /* R/W block */
+ if (pmdev->pages[index].page_flags & PB_HAS_MFR_INFO) {
+ pmbus_send_string(pmdev, pmdev->pages[index].mfr_id);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_MFR_MODEL: /* R/W block */
+ if (pmdev->pages[index].page_flags & PB_HAS_MFR_INFO) {
+ pmbus_send_string(pmdev, pmdev->pages[index].mfr_model);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_MFR_REVISION: /* R/W block */
+ if (pmdev->pages[index].page_flags & PB_HAS_MFR_INFO) {
+ pmbus_send_string(pmdev, pmdev->pages[index].mfr_revision);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_MFR_LOCATION: /* R/W block */
+ if (pmdev->pages[index].page_flags & PB_HAS_MFR_INFO) {
+ pmbus_send_string(pmdev, pmdev->pages[index].mfr_location);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_MFR_VIN_MIN: /* Read-Only word */
+ if (pmdev->pages[index].page_flags & PB_HAS_VIN_RATING) {
+ pmbus_send16(pmdev, pmdev->pages[index].mfr_vin_min);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_MFR_VIN_MAX: /* Read-Only word */
+ if (pmdev->pages[index].page_flags & PB_HAS_VIN_RATING) {
+ pmbus_send16(pmdev, pmdev->pages[index].mfr_vin_max);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_MFR_IIN_MAX: /* Read-Only word */
+ if (pmdev->pages[index].page_flags & PB_HAS_IIN_RATING) {
+ pmbus_send16(pmdev, pmdev->pages[index].mfr_iin_max);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_MFR_PIN_MAX: /* Read-Only word */
+ if (pmdev->pages[index].page_flags & PB_HAS_PIN_RATING) {
+ pmbus_send16(pmdev, pmdev->pages[index].mfr_pin_max);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_MFR_VOUT_MIN: /* Read-Only word */
+ if (pmdev->pages[index].page_flags & PB_HAS_VOUT_RATING) {
+ pmbus_send16(pmdev, pmdev->pages[index].mfr_vout_min);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_MFR_VOUT_MAX: /* Read-Only word */
+ if (pmdev->pages[index].page_flags & PB_HAS_VOUT_RATING) {
+ pmbus_send16(pmdev, pmdev->pages[index].mfr_vout_max);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_MFR_IOUT_MAX: /* Read-Only word */
+ if (pmdev->pages[index].page_flags & PB_HAS_IOUT_RATING) {
+ pmbus_send16(pmdev, pmdev->pages[index].mfr_iout_max);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_MFR_POUT_MAX: /* Read-Only word */
+ if (pmdev->pages[index].page_flags & PB_HAS_POUT_RATING) {
+ pmbus_send16(pmdev, pmdev->pages[index].mfr_pout_max);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_MFR_MAX_TEMP_1: /* R/W word */
+ if (pmdev->pages[index].page_flags & PB_HAS_TEMP_RATING) {
+ pmbus_send16(pmdev, pmdev->pages[index].mfr_max_temp_1);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_MFR_MAX_TEMP_2: /* R/W word */
+ if (pmdev->pages[index].page_flags & PB_HAS_TEMP_RATING) {
+ pmbus_send16(pmdev, pmdev->pages[index].mfr_max_temp_2);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_MFR_MAX_TEMP_3: /* R/W word */
+ if (pmdev->pages[index].page_flags & PB_HAS_TEMP_RATING) {
+ pmbus_send16(pmdev, pmdev->pages[index].mfr_max_temp_3);
+ } else {
+ goto passthough;
+ }
+ break;
+
+ case PMBUS_CLEAR_FAULTS: /* Send Byte */
+ case PMBUS_PAGE_PLUS_WRITE: /* Block Write-only */
+ case PMBUS_STORE_DEFAULT_ALL: /* Send Byte */
+ case PMBUS_RESTORE_DEFAULT_ALL: /* Send Byte */
+ case PMBUS_STORE_DEFAULT_CODE: /* Write-only Byte */
+ case PMBUS_RESTORE_DEFAULT_CODE: /* Write-only Byte */
+ case PMBUS_STORE_USER_ALL: /* Send Byte */
+ case PMBUS_RESTORE_USER_ALL: /* Send Byte */
+ case PMBUS_STORE_USER_CODE: /* Write-only Byte */
+ case PMBUS_RESTORE_USER_CODE: /* Write-only Byte */
+ case PMBUS_QUERY: /* Write-Only */
+ qemu_log_mask(LOG_GUEST_ERROR,
+ "%s: reading from write only register 0x%02x\n",
+ __func__, pmdev->code);
+ break;
+
+passthough:
+ default:
+ /* Pass through read request if not handled */
+ if (pmdc->receive_byte) {
+ ret = pmdc->receive_byte(pmdev);
