coreboot/src/drivers/spi/spiconsole.c
Patrick Georgi 6b5bc77c9b treewide: Remove "this file is part of" lines
Stefan thinks they don't add value.

Command used:
sed -i -e '/file is part of /d' $(git grep "file is part of " |egrep ":( */\*.*\*/\$|#|;#|-- | *\* )" | cut -d: -f1 |grep -v crossgcc |grep -v gcov | grep -v /elf.h |grep -v nvramtool)

The exceptions are for:
 - crossgcc (patch file)
 - gcov (imported from gcc)
 - elf.h (imported from GNU's libc)
 - nvramtool (more complicated header)

The removed lines are:
-       fmt.Fprintln(f, "/* This file is part of the coreboot project. */")
-# This file is part of a set of unofficial pre-commit hooks available
-/* This file is part of coreboot */
-# This file is part of msrtool.
-/* This file is part of msrtool. */
- * This file is part of ncurses, designed to be appended after curses.h.in
-/* This file is part of pgtblgen. */
- * This file is part of the coreboot project.
- /* This file is part of the coreboot project. */
-#  This file is part of the coreboot project.
-# This file is part of the coreboot project.
-## This file is part of the coreboot project.
--- This file is part of the coreboot project.
-/* This file is part of the coreboot project */
-/* This file is part of the coreboot project. */
-;## This file is part of the coreboot project.
-# This file is part of the coreboot project. It originated in the
- * This file is part of the coreinfo project.
-## This file is part of the coreinfo project.
- * This file is part of the depthcharge project.
-/* This file is part of the depthcharge project. */
-/* This file is part of the ectool project. */
- * This file is part of the GNU C Library.
- * This file is part of the libpayload project.
-## This file is part of the libpayload project.
-/* This file is part of the Linux kernel. */
-## This file is part of the superiotool project.
-/* This file is part of the superiotool project */
-/* This file is part of uio_usbdebug */

Change-Id: I82d872b3b337388c93d5f5bf704e9ee9e53ab3a9
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41194
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-05-11 17:11:40 +00:00

54 lines
1.6 KiB
C

/* SPDX-License-Identifier: GPL-2.0-only */
#include <spi-generic.h>
#include <spi_flash.h>
#include <console/spi.h>
static struct spi_slave slave;
void spiconsole_init(void) {
spi_init();
spi_setup_slave(0, 0, &slave);
return;
}
/*
* The EM100 'hyper terminal' specification defines a header of 9 characters.
* Because of this, devices with a spi_crop_chunk of less than 10 characters
* can't be supported by this standard.
*
* To add support in romstage, the static struct here and the ones used by
* spi_xfer will need to be modified - removed, or mapped into cbmem.
*
* Because the Dediprog software expects strings, not single characters, and
* because of the header overhead, this builds up a buffer to send.
*/
void spiconsole_tx_byte(unsigned char c) {
static struct em100_msg msg = {
.header.spi_command = EM100_DEDICATED_CMD,
.header.em100_command = EM100_UFIFO_CMD,
.header.msg_signature = EM100_MSG_SIGNATURE,
.header.msg_type = EM100_MSG_ASCII,
.header.msg_length = 0
};
/* Verify the spi buffer is big enough to send even a single byte */
if (spi_crop_chunk(&slave, 0, MAX_MSG_LENGTH) <
sizeof(struct em100_msg_header) + 1)
return;
msg.data[msg.header.msg_length] = c;
msg.header.msg_length++;
/* Send the data on newline or when the max spi length is reached */
if (c == '\n' || (sizeof(struct em100_msg_header) +
msg.header.msg_length == spi_crop_chunk(&slave, 0,
MAX_MSG_LENGTH))) {
spi_xfer(&slave, &msg, sizeof(struct em100_msg_header) +
msg.header.msg_length, NULL, 0);
msg.header.msg_length = 0;
}
return;
}