[PATCH] b43: Module option added to change the GPIO LED mask.

This patch exposes the GPIO mask as a module option. This
makes it possible to limit the GPIO lines used by the b43 module.
Useful for those using the GPIO lines for other things like mmc over GPIO.

It is helpful to those not able / interested in recompiling OpenWRT themselves. 
The default action is the same as before, that is 0xf gpiomask.

Signed-off-by: Simon Gaynor <openwrt@simong.net>


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@22927 3c298f89-4303-0410-b956-a3cf2f4a3e73

package/mac80211/patches/800-b43-gpio-mask-module-option.patch

@@ -0,0 +1,50 @@
+--- a/drivers/net/wireless/b43/b43.h
++++ b/drivers/net/wireless/b43/b43.h
+@@ -704,6 +704,7 @@ struct b43_wldev {
+ 	bool qos_enabled;		/* TRUE, if QoS is used. */
+ 	bool hwcrypto_enabled;		/* TRUE, if HW crypto acceleration is enabled. */
+ 	bool use_pio;			/* TRUE if next init should use PIO */
++	int gpiomask;			/* GPIO LED mask as a module parameter */
+ 
+ 	/* PHY/Radio device. */
+ 	struct b43_phy phy;
+--- a/drivers/net/wireless/b43/main.c
++++ b/drivers/net/wireless/b43/main.c
+@@ -75,6 +75,11 @@ MODULE_FIRMWARE("b43/ucode15.fw");
+ MODULE_FIRMWARE("b43/ucode5.fw");
+ MODULE_FIRMWARE("b43/ucode9.fw");
+ 
++static int modparam_gpiomask = 0x000F;
++module_param_named(gpiomask, modparam_gpiomask, int, 0444);
++MODULE_PARM_DESC(gpiomask,
++         "GPIO mask for LED control (default 0x000F)");
++
+ static int modparam_bad_frames_preempt;
+ module_param_named(bad_frames_preempt, modparam_bad_frames_preempt, int, 0444);
+ MODULE_PARM_DESC(bad_frames_preempt,
+@@ -2534,10 +2539,10 @@ static int b43_gpio_init(struct b43_wlde
+ 		    & ~B43_MACCTL_GPOUTSMSK);
+ 
+ 	b43_write16(dev, B43_MMIO_GPIO_MASK, b43_read16(dev, B43_MMIO_GPIO_MASK)
+-		    | 0x000F);
++		    | modparam_gpiomask);
+ 
+ 	mask = 0x0000001F;
+-	set = 0x0000000F;
++	set = modparam_gpiomask;
+ 	if (dev->dev->bus->chip_id == 0x4301) {
+ 		mask |= 0x0060;
+ 		set |= 0x0060;
+@@ -5094,10 +5099,10 @@ static void b43_print_driverinfo(void)
+ 	feat_sdio = "S";
+ #endif
+ 	printk(KERN_INFO "Broadcom 43xx driver loaded "
+-	       "[ Features: %s%s%s%s%s, Firmware-ID: "
++	       "[ Features: %s%s%s%s%s, GPIO LED Mask: 0x%04x, Firmware-ID: "
+ 	       B43_SUPPORTED_FIRMWARE_ID " ]\n",
+ 	       feat_pci, feat_pcmcia, feat_nphy,
+-	       feat_leds, feat_sdio);
++	       feat_leds, feat_sdio, modparam_gpiomask);
+ }
+ 
+ static int __init b43_init(void)