From 19d337dff95cbf76edd3ad95c0cee2732c3e1ec5 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Tue, 2 Jun 2009 13:01:37 +0200 Subject: rfkill: rewrite This patch completely rewrites the rfkill core to address the following deficiencies: * all rfkill drivers need to implement polling where necessary rather than having one central implementation * updating the rfkill state cannot be done from arbitrary contexts, forcing drivers to use schedule_work and requiring lots of code * rfkill drivers need to keep track of soft/hard blocked internally -- the core should do this * the rfkill API has many unexpected quirks, for example being asymmetric wrt. alloc/free and register/unregister * rfkill can call back into a driver from within a function the driver called -- this is prone to deadlocks and generally should be avoided * rfkill-input pointlessly is a separate module * drivers need to #ifdef rfkill functions (unless they want to depend on or select RFKILL) -- rfkill should provide inlines that do nothing if it isn't compiled in * the rfkill structure is not opaque -- drivers need to initialise it correctly (lots of sanity checking code required) -- instead force drivers to pass the right variables to rfkill_alloc() * the documentation is hard to read because it always assumes the reader is completely clueless and contains way TOO MANY CAPS * the rfkill code needlessly uses a lot of locks and atomic operations in locked sections * fix LED trigger to actually change the LED when the radio state changes -- this wasn't done before Tested-by: Alan Jenkins Signed-off-by: Henrique de Moraes Holschuh [thinkpad] Signed-off-by: Johannes Berg Signed-off-by: John W. Linville --- drivers/net/wireless/b43/phy_common.c | 17 ++++++----------- 1 file changed, 6 insertions(+), 11 deletions(-) (limited to 'drivers/net/wireless/b43/phy_common.c') diff --git a/drivers/net/wireless/b43/phy_common.c b/drivers/net/wireless/b43/phy_common.c index e176b6e0d9cf..6d241622210e 100644 --- a/drivers/net/wireless/b43/phy_common.c +++ b/drivers/net/wireless/b43/phy_common.c @@ -84,7 +84,7 @@ int b43_phy_init(struct b43_wldev *dev) phy->channel = ops->get_default_chan(dev); - ops->software_rfkill(dev, RFKILL_STATE_UNBLOCKED); + ops->software_rfkill(dev, false); err = ops->init(dev); if (err) { b43err(dev->wl, "PHY init failed\n"); @@ -104,7 +104,7 @@ err_phy_exit: if (ops->exit) ops->exit(dev); err_block_rf: - ops->software_rfkill(dev, RFKILL_STATE_SOFT_BLOCKED); + ops->software_rfkill(dev, true); return err; } @@ -113,7 +113,7 @@ void b43_phy_exit(struct b43_wldev *dev) { const struct b43_phy_operations *ops = dev->phy.ops; - ops->software_rfkill(dev, RFKILL_STATE_SOFT_BLOCKED); + ops->software_rfkill(dev, true); if (ops->exit) ops->exit(dev); } @@ -295,18 +295,13 @@ err_restore_cookie: return err; } -void b43_software_rfkill(struct b43_wldev *dev, enum rfkill_state state) +void b43_software_rfkill(struct b43_wldev *dev, bool blocked) { struct b43_phy *phy = &dev->phy; - if (state == RFKILL_STATE_HARD_BLOCKED) { - /* We cannot hardware-block the device */ - state = RFKILL_STATE_SOFT_BLOCKED; - } - b43_mac_suspend(dev); - phy->ops->software_rfkill(dev, state); - phy->radio_on = (state == RFKILL_STATE_UNBLOCKED); + phy->ops->software_rfkill(dev, blocked); + phy->radio_on = !blocked; b43_mac_enable(dev); } -- cgit