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view src/g23m-gprs/gmm/gmm_kernp.h @ 220:0ed36de51973

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ABB semaphore protection overhaul The ABB semaphone protection logic that came with TCS211 from TI was broken in several ways: * Some semaphore-protected functions were called from Application_Initialize() context. NU_Obtain_Semaphore() called with NU_SUSPEND fails with NU_INVALID_SUSPEND in this context, but the return value wasn't checked, and NU_Release_Semaphore() would be called unconditionally at the end. The latter call would increment the semaphore count past 1, making the semaphore no longer binary and thus no longer effective for resource protection. The fix is to check the return value from NU_Obtain_Semaphore() and skip the NU_Release_Semaphore() call if the semaphore wasn't properly obtained. * Some SPI hardware manipulation was being done before entering the semaphore- protected critical section. The fix is to reorder the code: first obtain the semaphore, then do everything else. * In the corner case of L1/DSP recovery, l1_abb_power_on() would call some non-semaphore-protected ABB & SPI init functions. The fix is to skip those calls in the case of recovery. * A few additional corner cases existed, all of which are fixed by making ABB semaphore protection 100% consistent for all ABB functions and code paths. There is still one remaining problem of priority inversion: suppose a low- priority task calls an ABB function, and some medium-priority task just happens to preempt right in the middle of that semaphore-protected ABB operation. Then the high-priority SPI task is locked out for a non-deterministic time until that medium-priority task finishes its work and goes back to sleep. This priority inversion problem remains outstanding for now.
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 26 Apr 2021 20:55:25 +0000
parents fa8dc04885d8
children
line wrap: on
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/* 
+----------------------------------------------------------------------------- 
|  Project :  GPRS (8441)
|  Modul   :  gmm_kernp.h
+----------------------------------------------------------------------------- 
|  Copyright 2002 Texas Instruments Berlin, AG 
|                 All rights reserved. 
| 
|                 This file is confidential and a trade secret of Texas 
|                 Instruments Berlin, AG 
|                 The receipt of or possession of this file does not convey 
|                 any rights to reproduce or disclose its contents or to 
|                 manufacture, use, or sell anything it may describe, in 
|                 whole, or in part, without the specific written consent of 
|                 Texas Instruments Berlin, AG. 
+----------------------------------------------------------------------------- 
|  Purpose :  Definitions for gmm_kernp.c 
+----------------------------------------------------------------------------- 
*/ 


#ifndef GMM_KERNP_H
#define GMM_KERNP_H



EXTERN void kern_t3302 (void);
EXTERN void kern_t3310 (void);
EXTERN void kern_t3311 (void);
EXTERN void kern_t3312 (void);
EXTERN void kern_t3321 (void);
EXTERN void kern_tpower_off (void);

EXTERN void kern_gmmreg_plmn_res ( T_GMMREG_PLMN_RES *gmmreg_plmn_res );

EXTERN void kern_gmmreg_plmn_mode_req ( T_GMMREG_PLMN_MODE_REQ *gmmreg_plmn_mode_req );

EXTERN void kern_gmmreg_config_req ( T_GMMREG_CONFIG_REQ *gmmreg_config_req );

EXTERN void kern_gmmreg_net_req ( T_GMMREG_NET_REQ *gmmreg_net_req );

EXTERN void kern_gmmreg_detach_req ( T_GMMREG_DETACH_REQ *gmmreg_detach_req );

#ifdef GMM_TCS4
/*No Establish request will come from SM in new TI DK implementation*/
#else
EXTERN void kern_gmmsm_establish_req ( T_GMMSM_ESTABLISH_REQ 
                                       *gmmsm_establish_req );
#endif

#ifdef GMM_TCS4 
EXTERN void kern_gmmsm_sequence_res ( T_MMPM_SEQUENCE_RES *gmmsm_sequence_res );
#else
EXTERN void kern_gmmsm_sequence_res ( T_GMMSM_SEQUENCE_RES *gmmsm_sequence_res );
#endif 

EXTERN void kern_gmmsms_reg_state_req ( T_GMMSMS_REG_STATE_REQ *gmmsms_reg_state_req );


#ifdef REL99
EXTERN void kern_gmmsm_pdp_status_req ( T_MMPM_PDP_CONTEXT_STATUS_REQ *gmmsm_pdp_status_req );
#endif 


EXTERN void kern_gmmrr_page_ind ( T_GMMRR_PAGE_IND *gmmrr_page_ind );

EXTERN void kern_gmmrr_cs_page_ind ( T_GMMRR_CS_PAGE_IND *gmmrr_cs_page_ind );

EXTERN void kern_gmmrr_suspend_cnf ( T_GMMRR_SUSPEND_CNF *gmmrr_suspend_cnf );

EXTERN void kern_cgrlc_status_ind ( T_CGRLC_STATUS_IND *cgrlc_status_ind ); /* TCS 2.1 */

EXTERN void kern_cgrlc_test_mode_cnf ( T_CGRLC_TEST_MODE_CNF *cgrlc_test_mode_cnf ); /* TCS 2.1 */


EXTERN void kern_llgmm_status_ind ( T_LLGMM_STATUS_IND *llgmm_status_ind );

EXTERN void kern_llgmm_tlli_ind ( T_LLGMM_TLLI_IND *llgmm_tlli_ind );

EXTERN void kern_sim_gmm_insert_ind ( T_SIM_GMM_INSERT_IND *sim_mm_insert_ind );

EXTERN void kern_sim_remove_ind ( T_SIM_REMOVE_IND *sim_remove_ind );

EXTERN void kern_mmgmm_auth_rej_ind ( T_MMGMM_AUTH_REJ_IND *mmgmm_auth_rej_ind );

EXTERN void kern_mmgmm_nreg_cnf ( T_MMGMM_NREG_CNF *mmgmm_nreg_cnf );

EXTERN void kern_mmgmm_plmn_ind ( T_MMGMM_PLMN_IND *mmgmm_plmn_ind );

EXTERN void kern_mmgmm_t3212_val_ind ( T_MMGMM_T3212_VAL_IND 
                                          *mmgmm_t3212_val_ind );
EXTERN void kern_mmgmm_cm_release_ind ( T_MMGMM_CM_RELEASE_IND 
                                          *mmgmm_cm_release_ind );
EXTERN void kern_mmgmm_cm_establish_ind ( T_MMGMM_CM_ESTABLISH_IND 
                                          *mmgmm_cm_establish_ind );
EXTERN void kern_mmgmm_cm_emergency_ind ( T_MMGMM_CM_EMERGENCY_IND 
                                          *mmgmm_cm_emergency_ind );
EXTERN void kern_mmgmm_lup_accept_ind ( T_MMGMM_LUP_ACCEPT_IND 
                                          *mmgmm_lup_accept_ind );
EXTERN void kern_mmgmm_lup_needed_ind ( T_MMGMM_LUP_NEEDED_IND *mmgmm_lup_needed_ind );
EXTERN void kern_mmgmm_info_ind ( T_MMGMM_INFO_IND *mmgmm_info_ind );

EXTERN void kern_gmmreg_attach_req ( T_GMMREG_ATTACH_REQ *gmmreq_attach_req );
EXTERN void kern_sim_authentication_cnf ( T_SIM_AUTHENTICATION_CNF *sim_authentication_cnf );
 
EXTERN void kern_mmgmm_ciphering_ind ( T_MMGMM_CIPHERING_IND *mmgmm_ciphering_ind );
EXTERN void kern_mmgmm_tmsi_ind ( T_MMGMM_TMSI_IND *mmgmm_tmsi_ind );
EXTERN void kern_gmmrr_cr_ind ( T_GMMRR_CR_IND *gmmrr_cr_ind );
EXTERN void kern_tlocal_detach (void);
EXTERN void kern_mmgmm_ahplmn_ind ( T_MMGMM_AHPLMN_IND *mmgmm_ahplmn_ind );

#endif /* !GMM_KERNP_H */