niq32.c DTR handling restored for targets that have it TI's original TCS211 fw treated GPIO 3 as the DTR input (wired so on C-Sample and D-Sample boards, also compatible with Leonardo and FCDEV3B which have a fixed pull-down resistor on this GPIO line), and the code in niq32.c called UAF_DTRInterruptHandler() (implemented in uartfax.c) from the IQ_KeypadGPIOHandler() function. But on Openmoko's GTA02 with their official fw this GPIO is a floating input, all of the DTR handling code in uartfax.c including the interrupt logic is still there, but the hobbled TCS211-20070608 semi-src delivery which OM got from TI contained a change in niq32.c (which had been kept in FC until now) that removed the call to UAF_DTRInterruptHandler() as part of those not-quite-understood "CC test" hacks. The present change fixes this bug at a long last: if we are building fw for a target that has TI's "classic" DTR & DCD GPIO arrangement (dsample, fcmodem and gtm900), we bring back all of TI's original code in both uartfax.c and niq32.c, whereas if we are building fw for a target that does not use this classic GPIO arrangement, the code in niq32.c goes back to what we got from OM and all DTR & DCD code in uartfax.c is conditioned out. This change also removes the very last remaining bit of "CC test" bogosity from our FreeCalypso code base.

/*******************************************************************************
 *
 * SERIAL.H
 *
 * This module contains functions to send or receive commands on the USART 8251.
 * Only polled mode is used.
 * 
 * (C) Texas Instruments 1998
 *
 ******************************************************************************/

#ifndef __SERIAL_H__
#define __SERIAL_H__

#include "main/sys_types.h"

/*
 * ser_receive_command and ser_receive_char have 2 modes:
 *      SER_INFINITE : Waits until a command is received.
 *      SER_IMMEDIATE: Returns imediately even if no character is received.
 */

enum {
    SER_INFINITE,
    SER_IMMEDIATE
};

/*
 * Return values of ser_receive_data_for_flash.
 */

enum {
    SER_DATA_READY,
    SER_DATA_ERROR,
    SER_END_OF_FILE
};

extern void ser_wait_no_activity (SYS_UWORD8 device_id);
extern long ser_send_command (SYS_UWORD8 *command, SYS_UWORD8 device_id);
extern SYS_UWORD8 ser_receive_command (SYS_UWORD8 *command, int mode);
extern long ser_receive_data_for_flash (SYS_UWORD32 *address, SYS_UWORD16 *data, SYS_UWORD8 device_id);
extern void ser_initialize_flash_data_detection (void);
extern void ser_initialize_serial_link (void);
extern void ser_wait_last_character_sent (SYS_UWORD8 device_id);

#endif /* __SERIAL_H__ */