From efa151eb10a11796bd36cf0f32c8202e60d9de01 Mon Sep 17 00:00:00 2001 From: Carl-Daniel Hailfinger Date: Wed, 6 Jan 2010 16:09:10 +0000 Subject: Move OS-dependent serial code from buspirate_spi.c to serial.c While at it, also rename a few functions to make it obvious that they are generic and not specific to the Bus Pirate. Corresponding to flashrom svn r830. Signed-off-by: Carl-Daniel Hailfinger Acked-by: Patrick Georgi --- serial.c | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) (limited to 'serial.c') diff --git a/serial.c b/serial.c index e22a8fa..be88166 100644 --- a/serial.c +++ b/serial.c @@ -2,6 +2,7 @@ * This file is part of the flashrom project. * * Copyright (C) 2009 Urja Rannikko + * Copyright (C) 2009,2010 Carl-Daniel Hailfinger * * 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 @@ -140,3 +141,54 @@ void sp_flush_incoming(void) } return; } + +int serialport_shutdown(void) +{ + close(sp_fd); + return 0; +} + +int serialport_write(unsigned char *buf, unsigned int writecnt) +{ + int tmp = 0; + + while (tmp != writecnt) { + tmp = write(sp_fd, buf + tmp, writecnt - tmp); + if (tmp == -1) + return 1; + if (!tmp) + printf_debug("Empty write\n"); + } + + return 0; +} + +int serialport_read(unsigned char *buf, unsigned int readcnt) +{ + int tmp = 0; + + while (tmp != readcnt) { + tmp = read(sp_fd, buf + tmp, readcnt - tmp); + if (tmp == -1) + return 1; + if (!tmp) + printf_debug("Empty read\n"); + } + + return 0; +} + +int serialport_discard_read(void) +{ + int flags; + + printf_debug("%s\n", __func__); + flags = fcntl(sp_fd, F_GETFL); + flags |= O_NONBLOCK; + fcntl(sp_fd, F_SETFL, flags); + sp_flush_incoming(); + flags &= ~O_NONBLOCK; + fcntl(sp_fd, F_SETFL, flags); + + return 0; +} -- cgit v1.1