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view src/g23m-gprs/grr/grr_cpapf.h @ 629:3231dd9b38c1

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armio.c: make GPIOs 8 & 13 outputs driving 1 on all "classic" targets Calypso GPIOs 8 & 13 are pinmuxed with MCUEN1 & MCUEN2, respectively, and on powerup these pins are MCUEN, i.e., outputs driving 1. TI's code for C-Sample and earlier turns them into GPIOs configured as outputs also driving 1 - so far, so good - but TI's code for BOARD 41 (which covers D-Sample, Leonardo and all real world Calypso devices derived from the latter) switches them from MCUEN to GPIOs, but then leaves them as inputs. Given that the hardware powerup state of these two pins is outputs driving 1, every Calypso board design MUST be compatible with such driving; typically these GPIO signals will be either unused and unconnected or connected as outputs driving some peripheral. Turning these pins into GPIO inputs will result in floating inputs on every reasonably-wired board, thus I am convinced that this configuration is nothing but a bug on the part of whoever wrote this code at TI. This floating input bug had already been fixed earlier for GTA modem and FCDEV3B targets; the present change makes the fix unconditional for all "classic" targets. The newly affected targets are D-Sample, Leonardo, Tango and GTM900.
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 02 Jan 2020 05:38:26 +0000
parents 219afcfc6250
children
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/* 
+----------------------------------------------------------------------------- 
|  Project :  GPRS (8441)
|  Modul   :  GRR
+----------------------------------------------------------------------------- 
|  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 service CPAP.
+----------------------------------------------------------------------------- 
*/ 

#ifndef GRR_CPAPF_H
#define GRR_CPAPF_H


typedef enum  
{
  E_PDCH_ASSIGN_IGNORE,     /* no effect on current tbf */
  E_PDCH_ASSIGN_ERROR,
  E_PDCH_ASSIGN_UL,
  E_PDCH_ASSIGN_SB,
  E_PDCH_ASSIGN_DL,
  E_PDCH_ASSIGN_ASSIGN     /* valid message send mphp_assign_req */
} T_EVAL_PDCH_ASSIGN;


EXTERN void cpap_init ( void );

EXTERN T_EVAL_IA cpap_eval_ia ( void );

EXTERN T_EVAL_IA_DL cpap_eval_ia_dl ( void );

EXTERN T_EVAL_PDCH_ASSIGN cpap_eval_pdch_assignment ( void );

EXTERN void cpap_build_gprs_data_request (T_RRGRR_GPRS_DATA_REQ *rrgrr_gprs_data_req);

EXTERN void cpap_send_ass_fail (UBYTE cause);
EXTERN void cpap_send_assign_req_pdch (T_TBF_TYPE tbf_type_i);
EXTERN BOOL cpap_send_assign_req_ia ( T_TBF_TYPE tbf_type_i );
EXTERN UBYTE cpap_send_resource_request_ia ( void );
EXTERN UBYTE cpap_send_single_block_without_tbf ( void );
EXTERN void cpap_set_da_assignment_ia (T_MPHP_ASSIGNMENT_REQ *ptr2prim);
EXTERN UBYTE cpap_set_fa_assignment_ia (T_MPHP_ASSIGNMENT_REQ *ptr2prim);
EXTERN void cpap_set_dl_assignment_ia (T_MPHP_ASSIGNMENT_REQ *ptr2prim);
EXTERN UBYTE cpap_send_receive_normal_burst ( void );
EXTERN void cpap_join_tma_messages ( void );
EXTERN void cpap_store_ia_message ( void );
EXTERN void cpap_malloc_ia ( void );
EXTERN void cpap_mfree_ia ( BOOL restore_data );

#endif /* !GRR_CPAPF_H */