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view src/g23m-gprs/llc/llc_txf.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
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_txf.c 
+----------------------------------------------------------------------------- 
*/ 


#ifndef LLC_TXF_H
#define LLC_TXF_H


EXTERN void llc_tx_init (void);

EXTERN void tx_clear_buffer (void);

EXTERN void tx_send_cipher_req 
  (
#ifdef LL_DESC
  T_CCI_CIPHER_DESC_REQ *cci_cipher_desc_req,
#else
  T_CCI_CIPHER_REQ *cci_cipher_desc_req,
#endif
  T_PDU_TYPE frame_type,
  UBYTE protected_mode,
  T_FRAME_NUM ns,
  UBYTE cipher,
  ULONG oc
  );

GLOBAL void tx_reserve_buffer 
  (
#ifdef LL_DESC                               
  T_LL_UNITDESC_REQ *ll_unitdesc_req,
#else
  T_LL_UNITDATA_REQ *ll_unitdesc_req,
#endif
  T_PRIM_TYPE prim_type,
  UBYTE cause,
  T_SERVICE rx_service,
  ULONG *reservation_no,
  BOOL *buffer_available
  );


GLOBAL void tx_store_buffer (T_GRLC_DATA_REQ *grlc_data_req);

EXTERN void tx_get_next_frame (T_GRLC_DATA_REQ **grlc_data_req,
                               T_GRLC_UNITDATA_REQ **grlc_unitdata_req,
                               T_PRIM_TYPE *prim_type,
                               T_SERVICE *rx_service,
                               UBYTE *sapi);

EXTERN void tx_get_first_data_frame (T_TX_QUEUE **elem);

EXTERN void tx_remove_data_frames (T_SERVICE service, T_SAPI sapi);


#endif /* !LLC_TXS_H */