diff --git a/gsmL1prim.h b/gsmL1prim.h
new file mode 100644
index 0000000..f33b2e0
--- /dev/null
+++ b/gsmL1prim.h
@@ -0,0 +1,410 @@
+/*
+* Copyright 2012 Thomas Cooper <tacooper@vt.edu>
+*
+* This software is distributed under the terms of the GNU Affero Public License.
+* See the COPYING file in the main directory for details.
+*
+* This use of this software may be subject to additional restrictions.
+* See the LEGAL file in the main directory for details.
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU Affero General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU Affero General Public License for more details.
+
+You should have received a copy of the GNU Affero General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
+#ifndef GSML1PRIM_H
+#define GSML1PRIM_H
+
+#include <stdint.h>
+
+typedef enum GsmL1_SubCh_t {
+GsmL1_SubCh_NA,
+} GsmL1_SubCh_t;
+
+typedef enum GsmL1_Sapi_t {
+GsmL1_Sapi_Fcch,
+GsmL1_Sapi_Sch,
+GsmL1_Sapi_Sacch,
+GsmL1_Sapi_Sdcch,
+GsmL1_Sapi_Bcch,
+GsmL1_Sapi_Pch,
+GsmL1_Sapi_Agch,
+GsmL1_Sapi_Cbch,
+GsmL1_Sapi_Rach,
+GsmL1_Sapi_TchF,
+GsmL1_Sapi_FacchF,
+GsmL1_Sapi_TchH,
+GsmL1_Sapi_FacchH,
+GsmL1_Sapi_Nch,
+GsmL1_Sapi_Pdtch,
+GsmL1_Sapi_Pacch,
+GsmL1_Sapi_Pbcch,
+GsmL1_Sapi_Pagch,
+GsmL1_Sapi_Ppch,
+GsmL1_Sapi_Pnch,
+GsmL1_Sapi_Ptcch,
+GsmL1_Sapi_Prach,
+GsmL1_Sapi_Idle,
+GsmL1_Sapi_NUM,
+} GsmL1_Sapi_t;
+
+typedef enum GsmL1_Status_t {
+GsmL1_Status_Success,
+GsmL1_Status_Generic,
+GsmL1_Status_NoMemory,
+GsmL1_Status_Timeout,
+GsmL1_Status_InvalidParam,
+GsmL1_Status_Busy,
+GsmL1_Status_NoRessource,
+GsmL1_Status_Uninitialized,
+GsmL1_Status_NullInterface,
+GsmL1_Status_NullFctnPtr,
+GsmL1_Status_BadCrc,
+GsmL1_Status_BadUsf,
+GsmL1_Status_InvalidCPS,
+GsmL1_Status_UnexpectedBurst,
+GsmL1_Status_UnavailCodec,
+GsmL1_Status_CriticalError,
+GsmL1_Status_OverheatError,
+GsmL1_Status_DeviceError,
+GsmL1_Status_FacchError,
+GsmL1_Status_AlreadyDeactivated,
+GsmL1_Status_TxBurstFifoOvrn,
+GsmL1_Status_TxBurstFifoUndr,
+GsmL1_Status_NotSynchronized,
+GsmL1_Status_Unsupported,
+GSML1_STATUS_NUM,
+} GsmL1_Status_t;
+
+typedef enum GsmL1_PrimId_t {
+GsmL1_PrimId_MphInitReq,
+GsmL1_PrimId_MphCloseReq,
+GsmL1_PrimId_MphConnectReq,
+GsmL1_PrimId_MphDisconnectReq,
+GsmL1_PrimId_MphActivateReq,
+GsmL1_PrimId_MphDeactivateReq,
+GsmL1_PrimId_MphConfigReq,
+GsmL1_PrimId_MphMeasureReq,
+GsmL1_PrimId_MphInitCnf,
+GsmL1_PrimId_MphCloseCnf,
+GsmL1_PrimId_MphConnectCnf,
+GsmL1_PrimId_MphDisconnectCnf,
+GsmL1_PrimId_MphActivateCnf,
+GsmL1_PrimId_MphDeactivateCnf,
+GsmL1_PrimId_MphConfigCnf,
+GsmL1_PrimId_MphMeasureCnf,
+GsmL1_PrimId_MphTimeInd,
+GsmL1_PrimId_MphSyncInd,
+GsmL1_PrimId_PhEmptyFrameReq,
+GsmL1_PrimId_PhDataReq,
+GsmL1_PrimId_PhConnectInd,
+GsmL1_PrimId_PhReadyToSendInd,
+GsmL1_PrimId_PhDataInd,
+GsmL1_PrimId_PhRaInd,
+GsmL1_PrimId_NUM,
+} GsmL1_PrimId_t;
+
+typedef enum GsmL1_Dir_t {
+GsmL1_Dir_TxDownlink,
+GsmL1_Dir_RxUplink,
+} GsmL1_Dir_t;
+
+typedef enum GsmL1_DevType_t {
+GsmL1_DevType_TxdRxu,
+} GsmL1_DevType_t;
+
+typedef enum GsmL1_TchPlType_t {
+GsmL1_TchPlType_NA,
+GsmL1_TchPlType_Efr,
+GsmL1_TchPlType_Fr,
+GsmL1_TchPlType_Hr,
+GsmL1_TchPlType_Amr,
+GsmL1_TchPlType_Amr_SidBad,
+GsmL1_TchPlType_Amr_Onset,
+GsmL1_TchPlType_Amr_Ratscch,
+GsmL1_TchPlType_Amr_SidUpdateInH,
+GsmL1_TchPlType_Amr_SidFirstP1,
+GsmL1_TchPlType_Amr_SidFirstP2,
+GsmL1_TchPlType_Amr_SidFirstInH,
+GsmL1_TchPlType_Amr_RatscchMarker,
+GsmL1_TchPlType_Amr_RatscchData,
+} GsmL1_TchPlType_t;
+
+typedef enum GsmL1_ConfigParamId_t {
+GsmL1_ConfigParamId_SetNbTsc,
+GsmL1_ConfigParamId_SetTxPowerLevel,
+GsmL1_ConfigParamId_SetLogChParams,
+GsmL1_ConfigParamId_SetCipheringParams,
+} GsmL1_ConfigParamId_t;
+
+typedef struct GsmL1_DeviceParam_t {
+enum GsmL1_DevType_t devType;
+int freqBand;
+uint16_t u16Arfcn;
+uint16_t u16BcchArfcn;
+uint8_t u8NbTsc;
+uint8_t u8Ncc;
+float fRxPowerLevel;
+float fTxPowerLevel;
+} GsmL1_DeviceParam_t;
+
+typedef struct GsmL1_MsgUnitParam_t {
+uint8_t u8Buffer[256];
+uint8_t u8Size;
+} GsmL1_MsgUnitParam_t;
+
+typedef struct GsmL1_MeasParam_t {
+float fRssi;
+float fLinkQuality;
+float fBer;
+int16_t i16BurstTiming;
+} GsmL1_MeasParam_t;
+
+typedef struct GsmL1_LogChParam_t {
+union {
+struct {
+enum GsmL1_TchPlType_t tchPlType;
+        
+enum {
+GsmL1_AmrCmiPhase_NA,
+GsmL1_AmrCmiPhase_Odd,
+} amrCmiPhase;
+        
+enum {
+GsmL1_AmrCodecMode_Unset,
+} amrInitCodecMode;
+
+enum {
+GsmL1_AmrCodec_Unset,
+GsmL1_AmrCodec_4_75,
+GsmL1_AmrCodec_5_15,
+GsmL1_AmrCodec_5_9,
+GsmL1_AmrCodec_6_7,
+GsmL1_AmrCodec_7_4,
+GsmL1_AmrCodec_7_95,
+GsmL1_AmrCodec_10_2,
+GsmL1_AmrCodec_12_2,
+} amrActiveCodecSet[8];
+} tch;
+
+struct {
+uint8_t u8Bsic;
+uint8_t u8NbrOfAgch;
+} rach;
+
+struct {
+uint8_t u8MsPowerLevel;
+} sacch;
+
+struct {
+uint8_t u8NbrOfAgch;
+} agch;
+};
+} GsmL1_LogChParam_t;
+
+typedef enum GsmL1_LogChComb_t {
+GsmL1_LogChComb_0,
+GsmL1_LogChComb_I,
+GsmL1_LogChComb_II,
+GsmL1_LogChComb_IV,
+GsmL1_LogChComb_V,
+GsmL1_LogChComb_VII,
+GsmL1_LogChComb_XIII,
+} GsmL1_LogChComb_t;
+
+enum {
+GsmL1_FreqBand_850,
+GsmL1_FreqBand_900,
+GsmL1_FreqBand_1800,
+GsmL1_FreqBand_1900,
+};
+
+typedef struct GsmL1_MphInitReq_t {
+struct GsmL1_DeviceParam_t deviceParam;
+} GsmL1_MphInitReq_t;
+
+typedef struct GsmL1_MphCloseReq_t {
+uint32_t hLayer1;
+} GsmL1_MphCloseReq_t;
+
+typedef struct GsmL1_MphConnectReq_t {
+uint32_t hLayer1;
+uint8_t u8Tn;
+enum GsmL1_LogChComb_t logChComb;
+} GsmL1_MphConnectReq_t;
+
+typedef struct GsmL1_MphDisconnectReq_t {
+uint32_t hLayer1;
+} GsmL1_MphDisconnectReq_t;
+
+typedef struct GsmL1_MphActivateReq_t {
+uint32_t hLayer1;
+struct GsmL1_LogChParam_t logChPrm;
+uint8_t u8Tn;
+enum GsmL1_SubCh_t subCh;
+enum GsmL1_Dir_t dir;
+enum GsmL1_Sapi_t sapi;
+uint32_t hLayer2;
+float fBFILevel;
+} GsmL1_MphActivateReq_t;
+
+typedef struct GsmL1_MphDeactivateReq_t {
+uint32_t hLayer1;
+uint8_t u8Tn;
+enum GsmL1_SubCh_t subCh;
+enum GsmL1_Dir_t dir;
+enum GsmL1_Sapi_t sapi;
+} GsmL1_MphDeactivateReq_t;
+
+typedef struct GsmL1_ConfigParam_t {
+struct {
+enum GsmL1_Sapi_t sapi;
+uint8_t u8Tn;
+enum GsmL1_SubCh_t subCh;
+enum GsmL1_Dir_t dir;
+struct GsmL1_LogChParam_t logChParams;
+} setLogChParams;
+} GsmL1_ConfigParam_t;
+
+typedef struct GsmL1_MphConfigReq_t {
+uint32_t hLayer1;
+enum GsmL1_ConfigParamId_t cfgParamId;
+struct GsmL1_ConfigParam_t cfgParams;
+} GsmL1_MphConfigReq_t;
+
+typedef struct GsmL1_MphConfigCnf_t {
+enum GsmL1_Status_t status;
+enum GsmL1_ConfigParamId_t cfgParamId;
+struct GsmL1_ConfigParam_t cfgParams;
+} GsmL1_MphConfigCnf_t;
+
+typedef struct GsmL1_MphMeasureReq_t {
+uint32_t hLayer1;
+} GsmL1_MphMeasureReq_t;
+
+typedef struct GsmL1_MphInitCnf_t {
+uint32_t hLayer1;
+enum GsmL1_Status_t status;
+} GsmL1_MphInitCnf_t;
+
+typedef struct GsmL1_MphCloseCnf_t {
+enum GsmL1_Status_t status;
+} GsmL1_MphCloseCnf_t;
+
+typedef struct GsmL1_MphConnectCnf_t {
+enum GsmL1_Status_t status;
+} GsmL1_MphConnectCnf_t;
+
+typedef struct GsmL1_MphDisconnectCnf_t {
+enum GsmL1_Status_t status;
+} GsmL1_MphDisconnectCnf_t;
+
+typedef struct GsmL1_MphActivateCnf_t {
+enum GsmL1_Status_t status;
+uint8_t u8Tn;
+int sapi;
+} GsmL1_MphActivateCnf_t;
+
+typedef struct GsmL1_MphDeactivateCnf_t {
+enum GsmL1_Status_t status;
+uint8_t u8Tn;
+enum GsmL1_Sapi_t sapi;
+} GsmL1_MphDeactivateCnf_t;
+
+typedef struct GsmL1_MphMeasureCnf_t {
+enum GsmL1_Status_t status;
+} GsmL1_MphMeasureCnf_t;
+
+typedef struct GsmL1_MphTimeInd_t {
+uint32_t u32Fn;
+} GsmL1_MphTimeInd_t;
+
+typedef struct GsmL1_MphSyncInd_t {
+} GsmL1_MphSyncInd_t;
+
+typedef struct GsmL1_PhEmptyFrameReq_t {
+uint32_t hLayer1;
+uint8_t u8Tn;
+uint32_t u32Fn;
+enum GsmL1_Sapi_t sapi;
+enum GsmL1_SubCh_t subCh;
+uint8_t u8BlockNbr;
+} GsmL1_PhEmptyFrameReq_t;
+
+typedef struct GsmL1_PhDataReq_t {
+uint32_t hLayer1;
+uint8_t u8Tn;
+uint32_t u32Fn;
+enum GsmL1_Sapi_t sapi;
+enum GsmL1_SubCh_t subCh;
+uint8_t u8BlockNbr;
+struct GsmL1_MsgUnitParam_t msgUnitParam;
+} GsmL1_PhDataReq_t;
+
+typedef struct GsmL1_PhConnectInd_t {
+} GsmL1_PhConnectInd_t;
+
+typedef struct GsmL1_PhReadyToSendInd_t {
+uint32_t hLayer1;
+uint8_t u8Tn;
+uint32_t u32Fn;
+enum GsmL1_Sapi_t sapi;
+enum GsmL1_SubCh_t subCh;
+uint8_t u8BlockNbr;
+uint32_t hLayer2;
+} GsmL1_PhReadyToSendInd_t;
+
+typedef struct GsmL1_PhDataInd_t {
+struct GsmL1_MeasParam_t measParam;
+struct GsmL1_MsgUnitParam_t msgUnitParam;
+enum GsmL1_Sapi_t sapi;
+uint32_t hLayer2;
+} GsmL1_PhDataInd_t;
+
+typedef struct GsmL1_PhRaInd_t {
+struct GsmL1_MeasParam_t measParam;
+struct GsmL1_MsgUnitParam_t msgUnitParam;
+uint32_t u32Fn;
+uint32_t hLayer2;
+} GsmL1_PhRaInd_t;
+
+typedef struct GsmL1_Prim_t {
+union {
+struct GsmL1_MphInitReq_t mphInitReq;
+struct GsmL1_MphCloseReq_t mphCloseReq;
+struct GsmL1_MphConnectReq_t mphConnectReq;
+struct GsmL1_MphDisconnectReq_t mphDisconnectReq;
+struct GsmL1_MphActivateReq_t mphActivateReq;
+struct GsmL1_MphDeactivateReq_t mphDeactivateReq;
+struct GsmL1_MphConfigReq_t mphConfigReq;
+struct GsmL1_MphMeasureReq_t mphMeasureReq;
+struct GsmL1_MphInitCnf_t mphInitCnf;
+struct GsmL1_MphCloseCnf_t mphCloseCnf;
+struct GsmL1_MphConnectCnf_t mphConnectCnf;
+struct GsmL1_MphDisconnectCnf_t mphDisconnectCnf;
+struct GsmL1_MphActivateCnf_t mphActivateCnf;
+struct GsmL1_MphDeactivateCnf_t mphDeactivateCnf;
+struct GsmL1_MphConfigCnf_t mphConfigCnf;
+struct GsmL1_MphMeasureCnf_t mphMeasureCnf;
+struct GsmL1_MphTimeInd_t mphTimeInd;
+struct GsmL1_MphSyncInd_t mphSyncInd;
+struct GsmL1_PhEmptyFrameReq_t phEmptyFrameReq;
+struct GsmL1_PhDataReq_t phDataReq;
+struct GsmL1_PhConnectInd_t phConnectInd;
+struct GsmL1_PhReadyToSendInd_t phReadyToSendInd;
+struct GsmL1_PhDataInd_t phDataInd;
+struct GsmL1_PhRaInd_t phRaInd;
+} u;
+
+enum GsmL1_PrimId_t id;
+} GsmL1_Prim_t;