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view src/g23m-aci/aci/cmh_uart.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 :  GSM-PS (6147)
|  Modul   :  CMH_UART
+----------------------------------------------------------------------------- 
|  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 :  
+----------------------------------------------------------------------------- 
*/ 

#ifndef CMH_UART_H
#define CMH_UART_H


EXTERN T_ACI_LIST *uart_src_params;
EXTERN T_ACI_LIST *uart_com_par;

/*==== CONSTANTS ==================================================*/
#define NOT_SUPPORTED_UART_IO_PA_MARK 4 /* the UART does not support parity mark directly */

/*==== TYPES ======================================================*/

typedef struct
{
  UBYTE         *data;
  USHORT        data_len;
  T_ACI_CMD_SRC srcId;
} T_ACI_DTI_SEND;

typedef T_comPar T_ACI_UART_COM_PAR;
typedef struct {
  UBYTE               device;
  T_ACI_UART_COM_PAR  comPar;
  
} T_ACI_DEVICE_ENTRY;



/*==== PROTOTYPES =================================================*/

/*==== EXPORT =====================================================*/
EXTERN void           timeout_PlusIPR (void);

EXTERN BOOL           cmhUART_CMUX (T_ACI_CMD_SRC srcId);

EXTERN void           cmhUART_lst_init (void);
EXTERN BOOL           cmhUARTtest_srcId (UBYTE srcId,
                                         void *elem);

EXTERN BOOL           cmhUARTtest_device (UBYTE device,
                                          void *elem);

EXTERN T_ACI_DTI_PRC *cmhUART_find_dlci (T_ACI_LIST *search_list,
                                         UBYTE device,
                                         UBYTE dlci );
EXTERN void cmhUART_startConnection (UBYTE srcId, 
                                      T_ACI_DEVICE_TYPE device_type);

EXTERN BOOL cmhUART_stopConnection (UBYTE srcId);
EXTERN void cmhUART_getdata ( T_ACI_CMD_SRC srcId );

EXTERN void cmhUART_ParmsUpdated( UBYTE device );
EXTERN void cmhUART_DetectedESC_DTR( UBYTE device, UBYTE dlci, UBYTE cause );
EXTERN void cmhUART_init_ipr_params(void);

/*
 *  functions for cotroling UART parameters (baud rate, character framing, flow control)
 */
EXTERN void cmhUART_AddDeviceToComParameter( UBYTE device );
EXTERN void cmhUART_CleanComParameterList( void );

EXTERN T_ACI_DEVICE_TYPE cmhUART_GetDeviceType( UBYTE srcId );
EXTERN BOOL cmhUART_ChangeDeviceType( UBYTE             srcId, 
                                      T_ACI_DEVICE_TYPE device_type );
EXTERN T_ACI_DEVICE_ENTRY* cmhUART_GetDeviceParOverDevice( UBYTE device );
EXTERN T_ACI_DEVICE_ENTRY* cmhUART_GetDeviceParOverSrcID( UBYTE srcId );
EXTERN void cmhUART_SetComParToUnchanged( T_comPar *comPar );
EXTERN T_ACI_RETURN cmhUART_SetDataRate ( UBYTE srcId, T_ACI_BD_RATE  rate);
EXTERN T_ACI_RETURN cmhUART_SetCharacterFraming ( UBYTE srcId, 
                                                  T_ACI_BS_FRM format, 
                                                  T_ACI_BS_PAR parity );
EXTERN T_ACI_RETURN cmhUART_SetFlowControl(UBYTE srcId, T_ACI_RX_FLOW_CTRL DCE_by_DTE);
EXTERN T_ACI_BS_FRM cmhUART_GetFktInterfaceFormat( T_ACI_UART_COM_PAR *comPar );
EXTERN T_ACI_BS_PAR cmhUART_GetFktInterfaceParity( T_ACI_UART_COM_PAR *comPar );

EXTERN UBYTE cmhUART_GetParityOverSrcID( UBYTE srcId );
EXTERN UBYTE cmhUART_GetDataBitOverSrcID( UBYTE srcId );
EXTERN UBYTE cmhUART_GetStopBitOverSrcID( UBYTE srcId );
EXTERN void  cmhUART_lst_exit (void);


#ifdef CMH_UARTF_C

GLOBAL T_ACI_AT_CMD uartEntcurCmd[CMD_SRC_MAX];

#else

EXTERN T_ACI_AT_CMD uartEntcurCmd[];

#endif /* CMH_UARTF_C */

#endif /* CMH_UART_H */

/*==== EOF =======================================================*/