]> pilppa.com Git - linux-2.6-omap-h63xx.git/commit
[PATCH] zd1211rw: Defer firmware load until first ifup
authorDaniel Drake <dsd@gentoo.org>
Sun, 1 Jul 2007 17:22:32 +0000 (18:22 +0100)
committerJohn W. Linville <linville@tuxdriver.com>
Tue, 10 Jul 2007 18:14:56 +0000 (14:14 -0400)
commit74553aedd46b3a2cae986f909cf2a3f99369decc
tree6904945b36c017c58249b1900fbbd531f3286e49
parent93f510bbac64f552ef6872a39ae12afa06c4e999
[PATCH] zd1211rw: Defer firmware load until first ifup

While playing with the firmware a while back, I discovered a way to
access the device's entire address space before the firmware has been
loaded.

Previously we were loading the firmware early on (during probe) so that
we could read the MAC address from the EEPROM and register a netdevice.
Now that we can read the EEPROM without having firmware, we can defer
firmware loading until later while still reading the MAC address early
on.

This has the advantage that zd1211rw can now be built into the kernel --
previously if this was the case, zd1211rw would be loaded before the
filesystem is available and firmware loading would fail.

Firmware load and other device initialization operations now happen the
first time the interface is brought up.

Some architectural changes were needed: handling of the is_zd1211b flag
was moved into the zd_usb structure, MAC address handling was obviously
changed, and a preinit_hw stage was added (the order is now: init,
preinit_hw, init_hw).

Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
drivers/net/wireless/zd1211rw/zd_chip.c
drivers/net/wireless/zd1211rw/zd_chip.h
drivers/net/wireless/zd1211rw/zd_mac.c
drivers/net/wireless/zd1211rw/zd_mac.h
drivers/net/wireless/zd1211rw/zd_rf_al2230.c
drivers/net/wireless/zd1211rw/zd_rf_al7230b.c
drivers/net/wireless/zd1211rw/zd_rf_rf2959.c
drivers/net/wireless/zd1211rw/zd_rf_uw2453.c
drivers/net/wireless/zd1211rw/zd_usb.c
drivers/net/wireless/zd1211rw/zd_usb.h