[Buildroot] [PATCH 1/1] <wireless-regdb>: Adds the option to copy "regulatory.db[.p7s]" to /lib/firmware

[Christoph Engelbert]

Hey Arnout,

> On 13. Jul 2018, at 10:37, Arnout Vandecappelle <arnout at mind.be> wrote:
> 
> Hi Christoph,
> 
> Thank you for this patch. I have a few small remarks.
> 
> 
> On 12-07-18 22:09, noctarius wrote:
> 
> The Author should be the same as the signed-off-by, so could you set your
> user.name to Christoph Engelbert?

Sure thing.

> 
>> Certain wireless drivers (like the Broadcom FullMac drivers" expect the regulatory.db and
>> regulatory.db.p7s files to be available to be loadable from /lib/firmware. If not available
>> the driver still loads but runs on a minimal subset of channels.
>> 
>> This newly added option gives possibility to have those files copied to the necessary directory.
>> 
>> Signed-off-by: Christoph Engelbert <me at noctarius.com>
>> ---
>> package/wireless-regdb/Config.in         |  8 ++++++++
>> package/wireless-regdb/wireless-regdb.mk | 10 ++++++++++
>> 2 files changed, 18 insertions(+)
>> 
>> diff --git a/package/wireless-regdb/Config.in b/package/wireless-regdb/Config.in
>> index 0c9896deb9..5c91a7d8c7 100644
>> --- a/package/wireless-regdb/Config.in
>> +++ b/package/wireless-regdb/Config.in
>> @@ -7,3 +7,11 @@ config BR2_PACKAGE_WIRELESS_REGDB
>> 	  allowed radio frequencies for each local jurisdiction.
>> 
>> 	  https://wireless.wiki.kernel.org/en/developers/regulatory/wireless-regdb
>> +
>> +config BR2_PACKAGE_WIRELESS_REGDB_FIRMWARE
>> +	bool "wireless-regdb-firmware"
>> +	depends on BR2_PACKAGE_WIRELESS_REGDB
>> +	help
>> +	  Copies the regulatory.db and regulatory.db.p7s files to
>> +	  /lib/firmware which is necessary for certain drivers like
>> +	  the Broadcom FullMac driver.
>> diff --git a/package/wireless-regdb/wireless-regdb.mk b/package/wireless-regdb/wireless-regdb.mk
>> index e9283a00e2..e322035841 100644
>> --- a/package/wireless-regdb/wireless-regdb.mk
>> +++ b/package/wireless-regdb/wireless-regdb.mk
>> @@ -10,6 +10,16 @@ WIRELESS_REGDB_SITE = http://kernel.org/pub/software/network/wireless-regdb
>> WIRELESS_REGDB_LICENSE = ISC
>> WIRELESS_REGDB_LICENSE_FILES = LICENSE
>> 
>> +ifeq ($(BR2_PACKAGE_WIRELESS_REGDB_FIRMWARE),y)
>> +define WIRELESS_REGDB_FIRMWARE_INSTALL
>> +	$(INSTALL) -m 644 -D -T $(@D)/regulatory.db \
>> +		$(TARGET_DIR)/lib/firmware/regulatory.db
>> +	$(INSTALL) -m 644 -D -T $(@D)/regulatory.db.p7s \
>> +		$(TARGET_DIR)/lib/firmware/regulatory.db.p7s
> 
> Since these two files only add up to 6KB, I don't think it's worthwhile to make
> installing them conditional.

My thinking was, since nobody seems to miss it, most drivers might not need it at all and it’s specific to the likes of Broadcom. To not change the current behavior I added the condition. Obviously I can remove it, if you prefer.

Thanks,
Chris

> 
> Regards,
> Arnout
> 
>> +endef
>> +WIRELESS_REGDB_POST_INSTALL_TARGET_HOOKS += WIRELESS_REGDB_FIRMWARE_INSTALL
>> +endif
>> +
>> define WIRELESS_REGDB_INSTALL_TARGET_CMDS
>> 	$(INSTALL) -m 644 -D -T $(@D)/regulatory.bin \
>> 		$(TARGET_DIR)/usr/lib/crda/regulatory.bin
>> 
> 
> -- 
> Arnout Vandecappelle                          arnout at mind be
> Senior Embedded Software Architect            +32-16-286500
> Essensium/Mind                                http://www.mind.be
> G.Geenslaan 9, 3001 Leuven, Belgium           BE 872 984 063 RPR Leuven
> LinkedIn profile: http://www.linkedin.com/in/arnoutvandecappelle
> GPG fingerprint:  7493 020B C7E3 8618 8DEC 222C 82EB F404 F9AC 0DDF
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