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apm821xx: speed up ath9k-caldata extraction 

Reading and writing to and from flash storage is slow and currently,
the ath10kcal_extract() scripts are even more at an disadvantage
because they use a block size of 1 to be able skip.

This patch reworks the extraction scripts to be much faster and
efficient by reading and writing the calibration data in possibly
one big block.

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
openwrt-19.07
Christian Lamparter 2019-02-19 18:52:35 +01:00
parent 21e90685b6
commit ffd8ca18cc
1 changed files with 2 additions and 2 deletions
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4
target/linux/apm821xx/base-files/etc/hotplug.d/firmware/10-ath9k-eeprom
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@ -20,7 +20,7 @@ ath9k_eeprom_extract() {
[ -n "$mtd" ] || \ [ -n "$mtd" ] || \
ath9k_eeprom_die "no mtd device found for partition $part" ath9k_eeprom_die "no mtd device found for partition $part"
dd if=$mtd of=/lib/firmware/$FIRMWARE bs=1 skip=$offset count=$count 2>/dev/null || \ dd if=$mtd of=/lib/firmware/$FIRMWARE iflag=skip_bytes bs=$count skip=$offset count=1 2>/dev/null || \
ath9k_eeprom_die "failed to extract from $mtd" ath9k_eeprom_die "failed to extract from $mtd"
} }
@ -35,7 +35,7 @@ ath9k_ubi_eeprom_extract() {
[ -n "$ubi" ] || \ [ -n "$ubi" ] || \
ath9k_eeprom_die "no UBI volume found for $part" ath9k_eeprom_die "no UBI volume found for $part"
dd if=/dev/$ubi of=/lib/firmware/$FIRMWARE bs=1 skip=$offset count=$count 2>/dev/null || \ dd if=/dev/$ubi of=/lib/firmware/$FIRMWARE iflag=skip_bytes bs=$count skip=$offset count=1 2>/dev/null || \
ath9k_eeprom_die "failed to extract from $ubi" ath9k_eeprom_die "failed to extract from $ubi"
} }