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flashrom/custom_baud.c
Peter Stuge cd84b8de76 serial: Call set_custom_baudrate() thrice
Call the function before tcsetattr() settings are known, then again
with settings prepared but not yet applied and finally a third time
after tcsetattr().

Darwin support needs this change; there custom_baud code must be
called to modify the settings passed to tcsetattr() and then again
after tcsetattr() returns.

The change should be non-functional on all currently supported systems;
current code calls set_custom_baudrate() before any tcsetattr()
settings are prepared, so we have three stages in total.

This change originates from discussion of the macOS patch proposed by
Denis Ahrens in https://review.coreboot.org/c/flashrom/+/67822

Change-Id: I40cc443cfb7bf6b212b31826d437b898cc13c427
Signed-off-by: Peter Stuge <peter@stuge.se>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/70569
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Thomas Heijligen <src@posteo.de>
2023-02-16 17:29:21 +00:00

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C

/*
* This file is part of the flashrom project.
*
* Copyright (C) 2017 Urja Rannikko <urjaman@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <errno.h>
#include "custom_baud.h"
/* Stub, should not get called. */
int set_custom_baudrate(int fd, unsigned int baud, const enum custom_baud_stage stage, void *tio_wanted)
{
errno = ENOSYS; /* Hoping "Function not supported" will make you look here. */
return -1;
}
int use_custom_baud(unsigned int baud, const struct baudentry *baudtable)
{
return 0;
}