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view src/g23m-gprs/llc/llc_rxf.h @ 268:f2e52cab0a73

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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.
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 13 Jun 2021 18:17:53 +0000
parents fa8dc04885d8
children
line wrap: on
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/* 
+----------------------------------------------------------------------------- 
|  Project :  
|  Modul   :  
+----------------------------------------------------------------------------- 
|  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 llc_rxf.c 
+----------------------------------------------------------------------------- 
*/ 


#ifndef LLC_RXF_H
#define LLC_RXF_H


/*
 * Values for frame_rej parameter of rx_interpret_frame().
 */
#define FRAME_NOT_REJ         0x00
#define FRAME_REJ_W1          0x01
#define FRAME_REJ_W3          0x04


EXTERN void rx_init (void);

EXTERN void rx_analyse_ctrl_field (T_GRLC_UNITDATA_IND *grlc_unitdata_ind,
                                   T_PDU_TYPE *frame_type,
                                   UBYTE  *protected_mode,
                                   UBYTE  *sapi,
                                   T_FRAME_NUM *ns,
                                   BOOL   *ciphering,
                                   USHORT *header_size,
                                   BOOL   *frame_ok);

EXTERN void rx_send_decipher_req (T_GRLC_UNITDATA_IND *grlc_unitdata_ind,
                                  T_PDU_TYPE frame_type,
                                  UBYTE protected_mode,
                                  T_FRAME_NUM ns,
                                  USHORT header_size,
                                  BOOL ciphering);

EXTERN void rx_interpret_frame (T_sdu *frame,
                                UBYTE *sapi, 
                                T_PDU_TYPE *pdu_type, 
                                T_COMMAND *command, 
                                T_BIT *cr_bit, 
                                T_BIT *pf_bit, 
                                T_FRAME_NUM *nr, 
                                T_FRAME_NUM *ns, 
                                BOOL *frame_ok, 
                                UBYTE *frame_rej,
                                USHORT *frame_rej_ctrl_length,
                                UBYTE  cipher);

EXTERN void rx_strip_llc_header (T_sdu *sdu, 
                                 T_PDU_TYPE pdu_type,
                                 T_COMMAND command);


#endif /* !LLC_RXS_H */