ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/drivers/net/phy/phy_led_triggers.c b/marvell/linux/drivers/net/phy/phy_led_triggers.c
new file mode 100644
index 0000000..59a94e0
--- /dev/null
+++ b/marvell/linux/drivers/net/phy/phy_led_triggers.c
@@ -0,0 +1,156 @@
+// SPDX-License-Identifier: GPL-2.0+
+/* Copyright (C) 2016 National Instruments Corp. */
+#include <linux/leds.h>
+#include <linux/phy.h>
+#include <linux/phy_led_triggers.h>
+#include <linux/netdevice.h>
+
+static struct phy_led_trigger *phy_speed_to_led_trigger(struct phy_device *phy,
+ unsigned int speed)
+{
+ unsigned int i;
+
+ for (i = 0; i < phy->phy_num_led_triggers; i++) {
+ if (phy->phy_led_triggers[i].speed == speed)
+ return &phy->phy_led_triggers[i];
+ }
+ return NULL;
+}
+
+static void phy_led_trigger_no_link(struct phy_device *phy)
+{
+ if (phy->last_triggered) {
+ led_trigger_event(&phy->last_triggered->trigger, LED_OFF);
+ led_trigger_event(&phy->led_link_trigger->trigger, LED_OFF);
+ phy->last_triggered = NULL;
+ }
+}
+
+void phy_led_trigger_change_speed(struct phy_device *phy)
+{
+ struct phy_led_trigger *plt;
+
+ if (!phy->link)
+ return phy_led_trigger_no_link(phy);
+
+ if (phy->speed == 0)
+ return;
+
+ plt = phy_speed_to_led_trigger(phy, phy->speed);
+ if (!plt) {
+ netdev_alert(phy->attached_dev,
+ "No phy led trigger registered for speed(%d)\n",
+ phy->speed);
+ return phy_led_trigger_no_link(phy);
+ }
+
+ if (plt != phy->last_triggered) {
+ if (!phy->last_triggered)
+ led_trigger_event(&phy->led_link_trigger->trigger,
+ LED_FULL);
+ else
+ led_trigger_event(&phy->last_triggered->trigger, LED_OFF);
+
+ led_trigger_event(&plt->trigger, LED_FULL);
+ phy->last_triggered = plt;
+ }
+}
+EXPORT_SYMBOL_GPL(phy_led_trigger_change_speed);
+
+static void phy_led_trigger_format_name(struct phy_device *phy, char *buf,
+ size_t size, const char *suffix)
+{
+ snprintf(buf, size, PHY_ID_FMT ":%s",
+ phy->mdio.bus->id, phy->mdio.addr, suffix);
+}
+
+static int phy_led_trigger_register(struct phy_device *phy,
+ struct phy_led_trigger *plt,
+ unsigned int speed)
+{
+ plt->speed = speed;
+ phy_led_trigger_format_name(phy, plt->name, sizeof(plt->name),
+ phy_speed_to_str(speed));
+ plt->trigger.name = plt->name;
+
+ return led_trigger_register(&plt->trigger);
+}
+
+static void phy_led_trigger_unregister(struct phy_led_trigger *plt)
+{
+ led_trigger_unregister(&plt->trigger);
+}
+
+int phy_led_triggers_register(struct phy_device *phy)
+{
+ int i, err;
+ unsigned int speeds[50];
+
+ phy->phy_num_led_triggers = phy_supported_speeds(phy, speeds,
+ ARRAY_SIZE(speeds));
+ if (!phy->phy_num_led_triggers)
+ return 0;
+
+ phy->led_link_trigger = devm_kzalloc(&phy->mdio.dev,
+ sizeof(*phy->led_link_trigger),
+ GFP_KERNEL);
+ if (!phy->led_link_trigger) {
+ err = -ENOMEM;
+ goto out_clear;
+ }
+
+ phy_led_trigger_format_name(phy, phy->led_link_trigger->name,
+ sizeof(phy->led_link_trigger->name),
+ "link");
+ phy->led_link_trigger->trigger.name = phy->led_link_trigger->name;
+
+ err = led_trigger_register(&phy->led_link_trigger->trigger);
+ if (err)
+ goto out_free_link;
+
+ phy->phy_led_triggers = devm_kcalloc(&phy->mdio.dev,
+ phy->phy_num_led_triggers,
+ sizeof(struct phy_led_trigger),
+ GFP_KERNEL);
+ if (!phy->phy_led_triggers) {
+ err = -ENOMEM;
+ goto out_unreg_link;
+ }
+
+ for (i = 0; i < phy->phy_num_led_triggers; i++) {
+ err = phy_led_trigger_register(phy, &phy->phy_led_triggers[i],
+ speeds[i]);
+ if (err)
+ goto out_unreg;
+ }
+
+ phy->last_triggered = NULL;
+ phy_led_trigger_change_speed(phy);
+
+ return 0;
+out_unreg:
+ while (i--)
+ phy_led_trigger_unregister(&phy->phy_led_triggers[i]);
+ devm_kfree(&phy->mdio.dev, phy->phy_led_triggers);
+out_unreg_link:
+ phy_led_trigger_unregister(phy->led_link_trigger);
+out_free_link:
+ devm_kfree(&phy->mdio.dev, phy->led_link_trigger);
+ phy->led_link_trigger = NULL;
+out_clear:
+ phy->phy_num_led_triggers = 0;
+ return err;
+}
+EXPORT_SYMBOL_GPL(phy_led_triggers_register);
+
+void phy_led_triggers_unregister(struct phy_device *phy)
+{
+ int i;
+
+ for (i = 0; i < phy->phy_num_led_triggers; i++)
+ phy_led_trigger_unregister(&phy->phy_led_triggers[i]);
+
+ if (phy->led_link_trigger)
+ phy_led_trigger_unregister(phy->led_link_trigger);
+}
+EXPORT_SYMBOL_GPL(phy_led_triggers_unregister);