Revert "util/cbfstool: Port elogtool to libflashrom"

This reverts commit d74b8d9c990780ba64515b36aaff79d719d71ead.

This change breaks the 'make all' build of the cbfstool tools
from the util/cbfstool directory unless libflashrom-dev is
installed, complaining that flashrom is not installed.

Even with libflashrom-dev installed, it breaks building
elogtool with the public version of libflashrom-dev.

Signed-off-by: Martin Roth <martin@coreboot.org>
Change-Id: I572daa0c0f3998e20a8ed76df21228fdbb384baf
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62404
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: ron minnich <rminnich@gmail.com>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Felix Singer <felixsinger@posteo.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

1 files changed, 0 insertions, 210 deletions

diff --git a/util/cbfstool/uflashrom.c b/util/cbfstool/uflashrom.c
deleted file mode 100644
index faa45b6b49..0000000000
--- a/util/cbfstool/uflashrom.c
+++ /dev/null
@@ -1,210 +0,0 @@
-/* SPDX-License-Identifier: BSD-3-Clause */
-
-#include <assert.h>
-#include <stdio.h>
-#include <stdint.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include <libflashrom.h>
-
-#include "uflashrom.h"
-
-static int flashrom_print_cb(enum flashrom_log_level level, const char *fmt, va_list ap)
-{
-	int ret = 0;
-	FILE *output_type = stderr;
-
-	if (level > FLASHROM_MSG_INFO)
-		return ret;
-
-	ret = vfprintf(output_type, fmt, ap);
-	/* msg_*spew often happens inside chip accessors
-	 * in possibly time-critical operations.
-	 * If increasing verbosity, don't slow them down by flushing.
-	 */
-	fflush(output_type);
-
-	return ret;
-}
-
-static size_t resize_buf_to_offset(uint8_t **buf, unsigned int start, unsigned int len)
-{
-	uint8_t *old = *buf; // make a copy to free the old heap.
-
-	*buf = calloc(1, len);
-	memcpy(*buf, &old[start], len);
-	free(old);
-
-	return len;
-}
-
-static uint8_t *resize_buf_from_offset(const uint8_t *buf, size_t len, unsigned int rstart,
-				       unsigned int rlen)
-{
-	size_t nlen = rstart + rlen;
-	if (nlen > len)
-		return NULL;
-
-	uint8_t *nbuf = calloc(1, len); /* NOTE: full len buf required for writes. */
-	memcpy(nbuf + rstart, buf, rlen);
-
-	return nbuf;
-}
-
-/**
- * @brief Reads from flash into a buffer with an optional region.
- *
- * @param image, containing the programmer to use, unallocated buffer and size.
- * @param region, (optional) the string of the region to read from.
- * @return 0 on success
- */
-int flashrom_read(struct firmware_programmer *image, const char *region)
-{
-	int r = 0;
-	size_t len = 0;
-
-	struct flashrom_programmer *prog = NULL;
-	struct flashrom_flashctx *flashctx = NULL;
-	struct flashrom_layout *layout = NULL;
-
-	flashrom_set_log_callback((flashrom_log_callback *)&flashrom_print_cb);
-
-	r |= flashrom_init(1);
-	r |= flashrom_programmer_init(&prog, image->programmer, NULL);
-	r |= flashrom_flash_probe(&flashctx, prog, NULL);
-	if (r) {
-		r = -1;
-		goto err_cleanup;
-	}
-
-	len = flashrom_flash_getsize(flashctx);
-	if (region) {
-		r = flashrom_layout_read_fmap_from_rom(&layout, flashctx, 0, len);
-		if (r > 0) {
-			fprintf(stderr, "could not read fmap from rom, r=%d\n", r);
-			r = -1;
-			goto err_cleanup;
-		}
-		/* empty region causes seg fault in API. */
-		r |= flashrom_layout_include_region(layout, region);
-		if (r > 0) {
-			fprintf(stderr, "could not include region = '%s'\n", region);
-			r = -1;
-			goto err_cleanup;
-		}
-		flashrom_layout_set(flashctx, layout);
-	}
-	/* Due to how the libflashrom API works we first need a buffer sized
-	 * to the entire flash and after the read has finished, find the
-	 * the precise region size then resize the buffer accordingly.
-	 */
-	image->data = calloc(1, len);
-	image->size = len;
-
-	r |= flashrom_image_read(flashctx, image->data, len);
-
-	/* Here we resize the buffer from being the entire flash down to the specific
-	 * region size read and that we were interested in. Note that we only include
-	 * a singular region.
-	 */
-	if (region) {
-		unsigned int r_start, r_len;
-		flashrom_layout_get_region_range(layout, region, &r_start, &r_len);
-		image->size = resize_buf_to_offset(&image->data, r_start, r_len);
-	}
-
-err_cleanup:
-	flashrom_programmer_shutdown(prog);
-	if (layout)
-		flashrom_layout_release(layout);
-	if (flashctx)
-		flashrom_flash_release(flashctx);
-
-	return r;
-}
-
-/**
- * @brief Writes flash from a buffer with an optional region.
- *
- * @param image, containing the programmer to use, allocated buffer and its size.
- * @param region, (optional) the string of the region to write to.
- * @return 0 on success
- */
-int flashrom_write(struct firmware_programmer *image, const char *region)
-{
-	int r = 0;
-	size_t len = 0;
-	uint8_t *buf = image->data;
-
-	struct flashrom_programmer *prog = NULL;
-	struct flashrom_flashctx *flashctx = NULL;
-	struct flashrom_layout *layout = NULL;
-
-	flashrom_set_log_callback((flashrom_log_callback *)&flashrom_print_cb);
-
-	r |= flashrom_init(1);
-	r |= flashrom_programmer_init(&prog, image->programmer, NULL);
-	r |= flashrom_flash_probe(&flashctx, prog, NULL);
-	if (r) {
-		r = -1;
-		goto err_cleanup;
-	}
-
-	len = flashrom_flash_getsize(flashctx);
-	if (len == 0) {
-		fprintf(stderr, "zero sized flash detected\n");
-		r = -1;
-		goto err_cleanup;
-	}
-	if (region) {
-		r = flashrom_layout_read_fmap_from_buffer(
-			&layout, flashctx, (const uint8_t *)image->data, image->size);
-		if (r > 0) {
-			r = flashrom_layout_read_fmap_from_rom(&layout, flashctx, 0, len);
-			if (r > 0) {
-				fprintf(stderr, "could not read fmap from image or rom, r=%d\n",
-					r);
-				r = -1;
-				goto err_cleanup;
-			}
-		}
-		/* empty region causes seg fault in API. */
-		r |= flashrom_layout_include_region(layout, region);
-		if (r > 0) {
-			fprintf(stderr, "could not include region = '%s'\n", region);
-			r = -1;
-			goto err_cleanup;
-		}
-		flashrom_layout_set(flashctx, layout);
-
-		unsigned int r_start, r_len;
-		flashrom_layout_get_region_range(layout, region, &r_start, &r_len);
-		assert(r_len == image->size);
-		buf = resize_buf_from_offset(image->data, len, r_start, r_len);
-		if (!buf) {
-			r = -1;
-			goto err_cleanup_free;
-		}
-	} else if (image->size != len) {
-		r = -1;
-		goto err_cleanup;
-	}
-
-	flashrom_flag_set(flashctx, FLASHROM_FLAG_VERIFY_WHOLE_CHIP, false);
-	flashrom_flag_set(flashctx, FLASHROM_FLAG_VERIFY_AFTER_WRITE, true);
-
-	r |= flashrom_image_write(flashctx, buf, len, NULL);
-
-err_cleanup_free:
-	if (region)
-		free(buf);
-err_cleanup:
-	flashrom_programmer_shutdown(prog);
-	if (layout)
-		flashrom_layout_release(layout);
-	if (flashctx)
-		flashrom_flash_release(flashctx);
-
-	return r;
-}