iwlwifi: LED cleanup

The iwlwifi drivers have LED blinking requirements that
mac80211 cannot fulfill due to the use of just a single
LED instead of different ones for TX, RX, radio etc.
Instead, the single LED blinks according to transfers
and is solid on the rest of the time. As such, having
LED class devices registered that mac80211 triggers are
connected to is pointless as we don't use the triggers
anyway.

Remove all the useless code and add hooks into the
driver itself. At the same time, make the LED code
abstracted so the core code that determines blink rate
etc. can be shared between 3945 and agn in iwlcore.

At the same time, the fact that we removed the use of
the mac80211 LED triggers means we can also remove the
IWLWIFI_LEDS Kconfig symbol since the LED support is
now self-contained.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/iwlwifi/Kconfig

@@ -2,15 +2,6 @@ config IWLWIFI
 	tristate "Intel Wireless Wifi"
 	depends on PCI && MAC80211 && WLAN_80211 && EXPERIMENTAL
 	select FW_LOADER
-	select MAC80211_LEDS if IWLWIFI_LEDS
-	select LEDS_CLASS if IWLWIFI_LEDS
-
-config IWLWIFI_LEDS
-	bool "Enable LED support in iwlagn and iwl3945 drivers"
-	depends on IWLWIFI
-	default y
-	---help---
-	  Select this if you want LED support.
 
 config IWLWIFI_SPECTRUM_MEASUREMENT
 	bool "Enable Spectrum Measurement in iwlagn driver"

drivers/net/wireless/iwlwifi/Makefile

@@ -1,17 +1,16 @@
 obj-$(CONFIG_IWLWIFI)	+= iwlcore.o
 iwlcore-objs 		:= iwl-core.o iwl-eeprom.o iwl-hcmd.o iwl-power.o
 iwlcore-objs 		+= iwl-rx.o iwl-tx.o iwl-sta.o iwl-calib.o
-iwlcore-objs 		+= iwl-scan.o
+iwlcore-objs 		+= iwl-scan.o iwl-led.o
 iwlcore-$(CONFIG_IWLWIFI_DEBUGFS) += iwl-debugfs.o
-iwlcore-$(CONFIG_IWLWIFI_LEDS) += iwl-led.o
 iwlcore-$(CONFIG_IWLWIFI_SPECTRUM_MEASUREMENT) += iwl-spectrum.o
 iwlcore-$(CONFIG_IWLWIFI_DEVICE_TRACING) += iwl-devtrace.o
 
 CFLAGS_iwl-devtrace.o := -I$(src)
 
 # AGN
 obj-$(CONFIG_IWLAGN)	+= iwlagn.o
-iwlagn-objs		:= iwl-agn.o iwl-agn-rs.o
+iwlagn-objs		:= iwl-agn.o iwl-agn-rs.o iwl-agn-led.o
 
 iwlagn-$(CONFIG_IWL4965) += iwl-4965.o
 iwlagn-$(CONFIG_IWL5000) += iwl-5000.o

drivers/net/wireless/iwlwifi/iwl-1000.c

@@ -44,6 +44,7 @@
 #include "iwl-sta.h"
 #include "iwl-helpers.h"
 #include "iwl-5000-hw.h"
+#include "iwl-agn-led.h"
 
 /* Highest firmware API version supported */
 #define IWL1000_UCODE_API_MAX 3
@@ -145,6 +146,7 @@ static struct iwl_ops iwl1000_ops = {
 	.lib = &iwl1000_lib,
 	.hcmd = &iwl5000_hcmd,
 	.utils = &iwl5000_hcmd_utils,
+	.led = &iwlagn_led_ops,
 };
 
 struct iwl_cfg iwl1000_bgn_cfg = {