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view src/g23m-gprs/llc/llc_itxf.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_itxf.c 
+----------------------------------------------------------------------------- 
*/ 

#ifndef LLC_ITXF_H
#define LLC_ITXF_H


EXTERN void itx_init               (void);

EXTERN void itx_init_sapi          (void);

EXTERN void itx_send_next_frame    (T_ABIT_REQ_TYPE req);

EXTERN void itx_i_queue_clean      (void);

EXTERN void itx_i_queue_store      
(
#ifdef LL_DESC
 T_LL_DESC_REQ*, BOOL *store_failed
#else
 T_LL_DATA_REQ*, BOOL *store_failed
#endif
);
EXTERN void itx_i_queue_set_status (T_IQ_STATUS status, T_FRAME_NUM num);

#ifdef LL_2to1
EXTERN void itx_i_queue_get_ready  (BOOL* found, T_LL_reference1* reference, UBYTE state);
#else
EXTERN void itx_i_queue_get_ready  (BOOL* found, T_reference1* reference, UBYTE state);
#endif

#ifdef LL_2to1
EXTERN void itx_send_ll_data_cnf   (T_LL_reference1* reference);
#else
EXTERN void itx_send_ll_data_cnf   (T_reference1* reference);
#endif

EXTERN void itx_handle_ll_ready_ind(BOOL data_send);

EXTERN void itx_s_queue_store      (T_COMMAND, T_ABIT_REQ_TYPE, T_FRAME_NUM nr, 
                                    T_SACK_BITMAP*);

EXTERN void itx_s_queue_clean      (void);


#endif /* !LLC_ITXF_H */