Merge remote-tracking branch 'sumit-lts/lts-4.4.y-hikey' into linux-4.4.y4.4.89-rc1-hikey-20170924

1 files changed, 72 insertions, 0 deletions

diff --git a/net/bluetooth/led.c b/net/bluetooth/led.c
new file mode 100644
index 000000000000..1f53c1a5c195
--- /dev/null
+++ b/net/bluetooth/led.c
@@ -0,0 +1,72 @@
+/*
+ * Copyright 2015, Guodong Xu <guodong.xu@linaro.org>
+ * Copyright 2006, Johannes Berg <johannes@sipsolutions.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/slab.h>
+#include "led.h"
+
+#define BLUETOOTH_BLINK_DELAY 50 /* ms */
+
+void bluetooth_led_rx(struct hci_dev *hdev)
+{
+	unsigned long led_delay = BLUETOOTH_BLINK_DELAY;
+	if (unlikely(!hdev->rx_led))
+		return;
+	led_trigger_blink_oneshot(hdev->rx_led, &led_delay, &led_delay, 0);
+}
+EXPORT_SYMBOL_GPL(bluetooth_led_rx);
+
+void bluetooth_led_tx(struct hci_dev *hdev)
+{
+	unsigned long led_delay = BLUETOOTH_BLINK_DELAY;
+	if (unlikely(!hdev->tx_led))
+		return;
+	led_trigger_blink_oneshot(hdev->tx_led, &led_delay, &led_delay, 0);
+}
+EXPORT_SYMBOL_GPL(bluetooth_led_tx);
+
+void bluetooth_led_names(struct hci_dev *hdev)
+{
+	snprintf(hdev->rx_led_name, sizeof(hdev->rx_led_name),
+		 "%srx", hdev->name);
+	snprintf(hdev->tx_led_name, sizeof(hdev->tx_led_name),
+		 "%stx", hdev->name);
+}
+
+void bluetooth_led_init(struct hci_dev *hdev)
+{
+	hdev->rx_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
+	if (hdev->rx_led) {
+		hdev->rx_led->name = hdev->rx_led_name;
+		if (led_trigger_register(hdev->rx_led)) {
+			kfree(hdev->rx_led);
+			hdev->rx_led = NULL;
+		}
+	}
+
+	hdev->tx_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
+	if (hdev->tx_led) {
+		hdev->tx_led->name = hdev->tx_led_name;
+		if (led_trigger_register(hdev->tx_led)) {
+			kfree(hdev->tx_led);
+			hdev->tx_led = NULL;
+		}
+	}
+}
+
+void bluetooth_led_exit(struct hci_dev *hdev)
+{
+	if (hdev->tx_led) {
+		led_trigger_unregister(hdev->tx_led);
+		kfree(hdev->tx_led);
+	}
+	if (hdev->rx_led) {
+		led_trigger_unregister(hdev->rx_led);
+		kfree(hdev->rx_led);
+	}
+}