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view src/g23m-gprs/llc/llc_itxs.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 :  
|  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_itxs.c 
+----------------------------------------------------------------------------- 
*/ 

#ifndef LLC_ITXS_H
#define LLC_ITXS_H


EXTERN void sig_llme_itx_assign_req (void);

EXTERN void sig_llme_itx_unassign_req (void);

EXTERN void sig_llme_itx_reset_req (void);

EXTERN void sig_llme_itx_abmest_req (void);

EXTERN void sig_llme_itx_abmrel_req (void);

EXTERN void sig_llme_itx_suspend_req (void);

EXTERN void sig_llme_itx_resume_req (void);

EXTERN void sig_tx_itx_ready_ind (void);

EXTERN void sig_irx_itx_peer_busy_ind (void);

EXTERN void sig_irx_itx_peer_ready_ind (void);

EXTERN void sig_irx_itx_trigger_ind (void);

EXTERN void sig_irx_itx_ack_ind (BOOL is_ack, T_FRAME_NUM num);

EXTERN void sig_irx_itx_cnf_l3data_req (void);

EXTERN void sig_irx_itx_send_rr_req (T_ABIT_REQ_TYPE);

EXTERN void sig_irx_itx_send_rnr_req (T_ABIT_REQ_TYPE);

EXTERN void sig_irx_itx_send_ack_req (T_ABIT_REQ_TYPE);

EXTERN void sig_irx_itx_send_sack_req (T_ABIT_REQ_TYPE, T_SACK_BITMAP* );

#endif /* !LLC_ITXS_H */