libflashrom: Return progress state to the library user

Projects using libflashrom like fwupd expect the user to wait for the
operation to complete. To avoid the user thinking the process has
"hung" or "got stuck" report back the progress complete of the erase,
write and read operations.

Add a new --progress flag to the CLI to report progress of operations.

Include a test for the dummy spi25 device.

TEST=./test_build.sh; ./flashrom -p lspcon_i2c_spi:bus=7 -r /dev/null --progress

Change-Id: I7197572bb7f19e3bdb2bde855d70a0f50fd3854c
Signed-off-by: Richard Hughes <richard@hughsie.com>
Signed-off-by: Daniel Campello <campello@chromium.org>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/49643
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Edward O'Callaghan <quasisec@chromium.org>
Reviewed-by: Anastasia Klimchuk <aklm@chromium.org>
Reviewed-by: Thomas Heijligen <src@posteo.de>

1 files changed, 4 insertions, 1 deletions

diff --git a/jedec.c b/jedec.c
index 0709efa5e..2542f3e67 100644
--- a/jedec.c
+++ b/jedec.c
@@ -421,6 +421,7 @@ int write_jedec_1(struct flashctx *flash, const uint8_t *src, unsigned int start
 		if (write_byte_program_jedec_common(flash, src, dst, mask))
 			failed = 1;
 		dst++, src++;
+		update_progress(flash, FLASHROM_PROGRESS_WRITE, i + 1, len);
 	}
 	if (failed)
 		msg_cerr(" writing sector at 0x%" PRIxPTR " failed!\n", olddst);
@@ -487,6 +488,7 @@ int write_jedec(struct flashctx *flash, const uint8_t *buf, unsigned int start,
 	 * we're OK for now.
 	 */
 	unsigned int page_size = flash->chip->page_size;
+	unsigned int nwrites = (start + len - 1) / page_size;
 
 	/* Warning: This loop has a very unusual condition and body.
 	 * The loop needs to go through each page with at least one affected
@@ -497,7 +499,7 @@ int write_jedec(struct flashctx *flash, const uint8_t *buf, unsigned int start,
 	 * (start + len - 1) / page_size. Since we want to include that last
 	 * page as well, the loop condition uses <=.
 	 */
-	for (i = start / page_size; i <= (start + len - 1) / page_size; i++) {
+	for (i = start / page_size; i <= nwrites; i++) {
 		/* Byte position of the first byte in the range in this page. */
 		/* starthere is an offset to the base address of the chip. */
 		starthere = max(start, i * page_size);
@@ -506,6 +508,7 @@ int write_jedec(struct flashctx *flash, const uint8_t *buf, unsigned int start,
 
 		if (write_page_write_jedec_common(flash, buf + starthere - start, starthere, lenhere))
 			return 1;
+		update_progress(flash, FLASHROM_PROGRESS_WRITE, i + 1, nwrites + 1);
 	}
 
 	return 0;