[B43]: LED triggers support

Drive the LEDs through the generic LED triggers.
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Cc: Larry Finger <larry.finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/wireless/b43/Kconfig

@@ -61,6 +61,12 @@ config B43_PCMCIA
 
 	  If unsure, say N.
 
+# LED support
+config B43_LEDS
+	bool
+	depends on MAC80211_LEDS
+	default y
+
 config B43_DEBUG
 	bool "Broadcom 43xx debugging"
 	depends on B43

drivers/net/wireless/b43/Makefile

@@ -3,9 +3,10 @@ b43-y				+= main.o
 b43-y				+= tables.o
 b43-y				+= phy.o
 b43-y				+= sysfs.o
-b43-y				+= leds.o
 b43-y				+= xmit.o
 b43-y				+= lo.o
+# b43 LED support
+b43-$(CONFIG_B43_LEDS)		+= leds.o
 # b43 PCMCIA support
 b43-$(CONFIG_B43_PCMCIA)	+= pcmcia.o
 # b43 debugging

drivers/net/wireless/b43/b43.h

@@ -696,8 +696,10 @@ struct b43_wldev {
 	/* Various statistics about the physical device. */
 	struct b43_stats stats;
 
-#define B43_NR_LEDS		4
-	struct b43_led leds[B43_NR_LEDS];
+	/* The device LEDs. */
+	struct b43_led led_tx;
+	struct b43_led led_rx;
+	struct b43_led led_assoc;
 
 	/* Reason code of the last interrupt. */
 	u32 irq_reason;

drivers/net/wireless/b43/leds.h

 #ifndef B43_LEDS_H_
 #define B43_LEDS_H_
 
+struct b43_wldev;
+
+#ifdef CONFIG_B43_LEDS
+
 #include <linux/types.h>
-#include <linux/timer.h>
+#include <linux/leds.h>
+
+
+#define B43_LED_MAX_NAME_LEN	31
 
 struct b43_led {
-	u8 behaviour;
-	bool activelow;
-	/* Index in the "leds" array in b43_wldev */
-	u8 index;
 	struct b43_wldev *dev;
-	struct timer_list blink_timer;
-	unsigned long blink_interval;
+	/* The LED class device */
+	struct led_classdev led_dev;
+	/* The index number of the LED. */
+	u8 index;
+	/* If activelow is true, the LED is ON if the
+	 * bit is switched off. */
+	bool activelow;
+	/* The unique name string for this LED device. */
+	char name[B43_LED_MAX_NAME_LEN + 1];
 };
 
-/* Delay between state changes when blinking in jiffies */
-#define B43_LEDBLINK_SLOW		(HZ / 1)
-#define B43_LEDBLINK_MEDIUM		(HZ / 4)
-#define B43_LEDBLINK_FAST		(HZ / 8)
-
-#define B43_LED_XFER_THRES		(HZ / 100)
-
 #define B43_LED_BEHAVIOUR		0x7F
 #define B43_LED_ACTIVELOW		0x80
-enum {				/* LED behaviour values */
+/* LED behaviour values */
+enum b43_led_behaviour {
 	B43_LED_OFF,
 	B43_LED_ON,
 	B43_LED_ACTIVITY,
@@ -36,20 +40,25 @@ enum {				/* LED behaviour values */
 	B43_LED_WEIRD,		//FIXME
 	B43_LED_ASSOC,
 	B43_LED_INACTIVE,
-
-	/* Behaviour values for testing.
-	 * With these values it is easier to figure out
-	 * the real behaviour of leds, in case the SPROM
-	 * is missing information.
-	 */
-	B43_LED_TEST_BLINKSLOW,
-	B43_LED_TEST_BLINKMEDIUM,
-	B43_LED_TEST_BLINKFAST,
 };
 
-int b43_leds_init(struct b43_wldev *dev);
+void b43_leds_init(struct b43_wldev *dev);
 void b43_leds_exit(struct b43_wldev *dev);
-void b43_leds_update(struct b43_wldev *dev, int activity);
-void b43_leds_switch_all(struct b43_wldev *dev, int on);
+
+
+#else /* CONFIG_B43_LEDS */
+/* LED support disabled */
+
+struct b43_led {
+	/* empty */
+};
+
+static inline void b43_leds_init(struct b43_wldev *dev)
+{
+}
+static inline void b43_leds_exit(struct b43_wldev *dev)
+{
+}
+#endif /* CONFIG_B43_LEDS */
 
 #endif /* B43_LEDS_H_ */

drivers/net/wireless/b43/main.c

@@ -84,10 +84,6 @@ static int modparam_long_retry = B43_DEFAULT_LONG_RETRY_LIMIT;
 module_param_named(long_retry, modparam_long_retry, int, 0444);
 MODULE_PARM_DESC(long_retry, "Long-Retry-Limit (0 - 15)");
 
-static int modparam_noleds;
-module_param_named(noleds, modparam_noleds, int, 0444);
-MODULE_PARM_DESC(noleds, "Turn off all LED activity");
-
 static char modparam_fwpostfix[16];
 module_param_string(fwpostfix, modparam_fwpostfix, 16, 0444);
 MODULE_PARM_DESC(fwpostfix, "Postfix for the .fw files to load.");
@@ -1391,7 +1387,7 @@ static void b43_interrupt_tasklet(struct b43_wldev *dev)
 	u32 reason;
 	u32 dma_reason[ARRAY_SIZE(dev->dma_reason)];
 	u32 merged_dma_reason = 0;
-	int i, activity = 0;
+	int i;
 	unsigned long flags;
 
 	spin_lock_irqsave(&dev->wl->irq_lock, flags);
@@ -1444,8 +1440,9 @@ static void b43_interrupt_tasklet(struct b43_wldev *dev)
 		handle_irq_beacon(dev);
 	if (reason & B43_IRQ_PMQ)
 		handle_irq_pmq(dev);
-	if (reason & B43_IRQ_TXFIFO_FLUSH_OK) ;
-	/*TODO*/ if (reason & B43_IRQ_NOISESAMPLE_OK)
+	if (reason & B43_IRQ_TXFIFO_FLUSH_OK)
+		;/* TODO */
+	if (reason & B43_IRQ_NOISESAMPLE_OK)
 		handle_irq_noise(dev);
 
 	/* Check the DMA reason registers for received data. */
@@ -1454,7 +1451,6 @@ static void b43_interrupt_tasklet(struct b43_wldev *dev)
 			b43_pio_rx(dev->pio.queue0);
 		else
 			b43_dma_rx(dev->dma.rx_ring0);
-		/* We intentionally don't set "activity" to 1, here. */
 	}
 	B43_WARN_ON(dma_reason[1] & B43_DMAIRQ_RX_DONE);
 	B43_WARN_ON(dma_reason[2] & B43_DMAIRQ_RX_DONE);
@@ -1463,19 +1459,13 @@ static void b43_interrupt_tasklet(struct b43_wldev *dev)
 			b43_pio_rx(dev->pio.queue3);
 		else
 			b43_dma_rx(dev->dma.rx_ring3);
-		activity = 1;
 	}
 	B43_WARN_ON(dma_reason[4] & B43_DMAIRQ_RX_DONE);
 	B43_WARN_ON(dma_reason[5] & B43_DMAIRQ_RX_DONE);
 
-	if (reason & B43_IRQ_TX_OK) {
+	if (reason & B43_IRQ_TX_OK)
 		handle_irq_transmit_status(dev);
-		activity = 1;
-		//TODO: In AP mode, this also causes sending of powersave responses.
-	}
 
-	if (!modparam_noleds)
-		b43_leds_update(dev, activity);
 	b43_interrupt_enable(dev, dev->irq_savedstate);
 	mmiowb();
 	spin_unlock_irqrestore(&dev->wl->irq_lock, flags);
@@ -1927,7 +1917,6 @@ static int b43_gpio_init(struct b43_wldev *dev)
 	b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL)
 		    & ~B43_MACCTL_GPOUTSMSK);
 
-	b43_leds_switch_all(dev, 0);
 	b43_write16(dev, B43_MMIO_GPIO_MASK, b43_read16(dev, B43_MMIO_GPIO_MASK)
 		    | 0x000F);
 
@@ -2173,7 +2162,6 @@ static bool b43_is_hw_radio_enabled(struct b43_wldev *dev)
 static void b43_chip_exit(struct b43_wldev *dev)
 {
 	b43_radio_turn_off(dev);
-	if (!modparam_noleds)
 	b43_leds_exit(dev);
 	b43_gpio_cleanup(dev);
 	/* firmware is released later */
@@ -2202,9 +2190,11 @@ static int b43_chip_init(struct b43_wldev *dev)
 	err = b43_gpio_init(dev);
 	if (err)
 		goto out;	/* firmware is released later */
+	b43_leds_init(dev);
+
 	err = b43_upload_initvals(dev);
 	if (err)
-		goto err_gpio_cleanup;
+		goto err_leds_exit;
 	b43_radio_turn_on(dev);
 
 	b43_write16(dev, 0x03E6, 0x0000);
@@ -2275,14 +2265,15 @@ static int b43_chip_init(struct b43_wldev *dev)
 
 	err = 0;
 	b43dbg(dev->wl, "Chip initialized\n");
-      out:
+out:
 	return err;
 
-      err_radio_off:
+err_radio_off:
 	b43_radio_turn_off(dev);
-      err_gpio_cleanup:
+err_leds_exit:
+	b43_leds_exit(dev);
 	b43_gpio_cleanup(dev);
-	goto out;
+	return err;
 }
 
 static void b43_periodic_every120sec(struct b43_wldev *dev)
@@ -2369,7 +2360,6 @@ static void b43_periodic_every1sec(struct b43_wldev *dev)
 		dev->radio_hw_enable = radio_hw_enable;
 		b43info(dev->wl, "Radio hardware status changed to %s\n",
 			radio_hw_enable ? "ENABLED" : "DISABLED");
-		b43_leds_update(dev, 0);
 	}
 }
 
@@ -3767,18 +3757,13 @@ static int b43_wireless_core_attach(struct b43_wldev *dev)
 	} else
 		have_bphy = 1;
 
-	/* Initialize LEDs structs. */
-	err = b43_leds_init(dev);
-	if (err)
-		goto err_powerdown;
-
 	dev->phy.gmode = (have_gphy || have_bphy);
 	tmp = dev->phy.gmode ? B43_TMSLOW_GMODE : 0;
 	b43_wireless_core_reset(dev, tmp);
 
 	err = b43_phy_versioning(dev);
 	if (err)
-		goto err_leds_exit;
+		goto err_powerdown;
 	/* Check if this device supports multiband. */
 	if (!pdev ||
 	    (pdev->device != 0x4312 &&
@@ -3807,10 +3792,10 @@ static int b43_wireless_core_attach(struct b43_wldev *dev)
 
 	err = b43_validate_chipaccess(dev);
 	if (err)
-		goto err_leds_exit;
+		goto err_powerdown;
 	err = b43_setup_modes(dev, have_aphy, have_bphy, have_gphy);
 	if (err)
-		goto err_leds_exit;
+		goto err_powerdown;
 
 	/* Now set some default "current_dev" */
 	if (!wl->current_dev)
@@ -3825,8 +3810,6 @@ static int b43_wireless_core_attach(struct b43_wldev *dev)
 out:
 	return err;
 
-err_leds_exit:
-	b43_leds_exit(dev);
 err_powerdown:
 	ssb_bus_may_powerdown(bus);
 	return err;