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view src/g23m-aci/l2p/l2p.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 53929b40109c
children
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/* 
+----------------------------------------------------------------------------- 
|  Project :  BAT L2P ()
|  Modul   :  BAT_L2P
+----------------------------------------------------------------------------- 
|  Copyright 2005 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 :  L2P external interface definition
+----------------------------------------------------------------------------- 
*/ 

#ifndef L2P_EXTERN_H
#define L2P_EXTERN_H

#include "l2p_types.h"

/**********************************************
**
** Function Prototypes
**
***********************************************/

T_L2P_STATUS L2P_Configure(U8 batid, void *mem,
                           T_L2P_SUPPORTED_PROTOCOLS protocolId,
                           U16 maxMTU,
                           L2P_Get_Tx_Buf_CB  Get_Tx_Buf_Cb,
                           L2P_Get_Rx_Buf_CB Get_Rx_Buf_Cb,
                           L2P_Get_Next_Seg_CB Get_Next_Seg_Cb,
                           L2P_Send_Frame_CB Send_Frame_Cb,
                           L2P_Msg_Rxd_CB Msg_Rxd_Cb);

T_L2P_STATUS L2P_Remove(U8 batid);

T_L2P_STATUS L2P_Send(U8 batId, U8 muxId, U32 dataTag, void *dataBuf, U16 dataLen, int *errVal);

T_L2P_STATUS L2P_Receive(U8 batId, void *dataBuf, void *seg_hdr_ptr, U16 totalsize, U16 segSize);

#endif