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Code Issues Releases Wiki Activity

Support reads of arbitrary range

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That means you can tell flashrom to read exactly bytes 12345-56789
(start 12345, length 44445) and it will not fetch a single byte more.

Uwe tested this on one LPC, one SPI, and one parallel flash board.

Corresponding to flashrom svn r596.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
This commit is contained in:
Carl-Daniel Hailfinger
2009-06-16 08:55:44 +00:00
parent 30f7cb2f3c
commit cbf563cbde
7 changed files with 48 additions and 35 deletions
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11
flashrom.c
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@ -194,9 +194,9 @@ void map_flash_registers(struct flashchip *flash)
flash->virtual_registers = (chipaddr)programmer_map_flash_region("flash chip registers", (0xFFFFFFFF - 0x400000 - size + 1), size);
}
int read_memmapped(struct flashchip *flash, uint8_t *buf)
int read_memmapped(struct flashchip *flash, uint8_t *buf, int start, int len)
{
chip_readn(buf, flash->virtual_memory, flash->total_size * 1024);
chip_readn(buf, flash->virtual_memory + start, len);
return 0;
}
@ -393,7 +393,7 @@ int verify_flash(struct flashchip *flash, uint8_t *buf)
fprintf(stderr, "ERROR: flashrom has no read function for this flash chip.\n");
return 1;
} else
flash->read(flash, buf2);
flash->read(flash, buf2, 0, total_size);
printf("Verifying flash... ");
@ -446,7 +446,7 @@ int read_flash(struct flashchip *flash, char *filename, unsigned int exclude_sta
fprintf(stderr, "ERROR: flashrom has no read function for this flash chip.\n");
return 1;
} else
flash->read(flash, buf);
flash->read(flash, buf, 0, size);
if (exclude_end_position - exclude_start_position > 0)
memset(buf + exclude_start_position, 0,
@ -482,7 +482,7 @@ int erase_flash(struct flashchip *flash)
fprintf(stderr, "ERROR: flashrom has no read function for this flash chip.\n");
return 1;
} else
flash->read(flash, buf);
flash->read(flash, buf, 0, size);
for (erasedbytes = 0; erasedbytes < size; erasedbytes++)
if (0xff != buf[erasedbytes]) {
@ -915,6 +915,7 @@ int main(int argc, char *argv[])
* completely once all flash chips can do rom layouts. stepan
*/
/* FIXME: This code is totally broken. It treats exclude ranges as include ranges. */
// ////////////////////////////////////////////////////////////
if (exclude_end_position - exclude_start_position > 0)
chip_readn(buf + exclude_start_position,