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programmers: Allow opaque programmers to specify custom delay

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The dummyprogrammer in the opaque case can have a NOP delay
to avoid wasting CPU time and energy.

BUG=b:266014935
TEST=builds

Change-Id: Ia86ad21f011214abc2aa0891a43559f91e2a9591
Signed-off-by: Edward O'Callaghan <quasisec@google.com>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/72424
Reviewed-by: Sam McNally <sammc@google.com>
Reviewed-by: Anastasia Klimchuk <aklm@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Edward O'Callaghan 2023-01-25 14:15:33 +11:00 committed by Edward O'Callaghan
parent 31c5caa614
commit 0a6fa23924
2 changed files with 4 additions and 0 deletions
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3
flashrom.c
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@ -277,6 +277,9 @@ void programmer_delay(const struct flashctx *flash, unsigned int usecs)
} else if (flash->mst->buses_supported & BUS_PARALLEL) { } else if (flash->mst->buses_supported & BUS_PARALLEL) {
if (flash->mst->par.delay) if (flash->mst->par.delay)
return flash->mst->par.delay(flash, usecs); return flash->mst->par.delay(flash, usecs);
} else if (flash->mst->buses_supported & BUS_PROG) {
if (flash->mst->opaque.delay)
return flash->mst->opaque.delay(flash, usecs);
} }
return default_delay(usecs); return default_delay(usecs);

1
include/programmer.h
View File

@ -418,6 +418,7 @@ struct opaque_master {
enum flashrom_wp_result (*wp_get_ranges)(struct flashrom_wp_ranges **, struct flashctx *); enum flashrom_wp_result (*wp_get_ranges)(struct flashrom_wp_ranges **, struct flashctx *);
void (*get_region)(const struct flashctx *flash, unsigned int addr, struct flash_region *region); void (*get_region)(const struct flashctx *flash, unsigned int addr, struct flash_region *region);
int (*shutdown)(void *data); int (*shutdown)(void *data);
void (*delay) (const struct flashctx *flash, unsigned int usecs);
void *data; void *data;
}; };
int register_opaque_master(const struct opaque_master *mst, void *data); int register_opaque_master(const struct opaque_master *mst, void *data);