[12/42] wifi: iwlwifi: mld: add file led.h/c

Commit Message

Miri Korenblit Feb. 16, 2025, 9:42 a.m. UTC

this file is handling a led functionality

Signed-off-by: Miri Korenblit <[e-mail]>
---
 drivers/net/wireless/intel/iwlwifi/mld/led.c | 100 +++++++++++++++++++
 drivers/net/wireless/intel/iwlwifi/mld/led.h |  29 ++++++
 2 files changed, 129 insertions(+)
 create mode 100644 drivers/net/wireless/intel/iwlwifi/mld/led.c
 create mode 100644 drivers/net/wireless/intel/iwlwifi/mld/led.h

Patch

diff --git a/drivers/net/wireless/intel/iwlwifi/mld/led.c b/drivers/net/wireless/intel/iwlwifi/mld/led.c
new file mode 100644
index 000000000000..a37b32cbc6e6
--- /dev/null
+++ b/drivers/net/wireless/intel/iwlwifi/mld/led.c
@@ -0,0 +1,100 @@ 
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+/*
+ * Copyright (C) 2024 Intel Corporation
+ */
+#include <linux/leds.h>
+#include <net/mac80211.h>
+
+#include "fw/api/led.h"
+#include "mld.h"
+#include "led.h"
+#include "hcmd.h"
+
+static void iwl_mld_send_led_fw_cmd(struct iwl_mld *mld, bool on)
+{
+	struct iwl_led_cmd led_cmd = {
+		.status = cpu_to_le32(on),
+	};
+	int err;
+
+	if (WARN_ON(!mld->fw_status.running))
+		return;
+
+	err = iwl_mld_send_cmd_with_flags_pdu(mld, WIDE_ID(LONG_GROUP,
+							   LEDS_CMD),
+					      CMD_ASYNC, &led_cmd);
+
+	if (err)
+		IWL_WARN(mld, "LED command failed: %d\n", err);
+}
+
+static void iwl_led_brightness_set(struct led_classdev *led_cdev,
+				   enum led_brightness brightness)
+{
+	struct iwl_mld *mld = container_of(led_cdev, struct iwl_mld, led);
+
+	if (!mld->fw_status.running)
+		return;
+
+	iwl_mld_send_led_fw_cmd(mld, brightness > 0);
+}
+
+int iwl_mld_leds_init(struct iwl_mld *mld)
+{
+	int mode = iwlwifi_mod_params.led_mode;
+	int ret;
+
+	switch (mode) {
+	case IWL_LED_BLINK:
+		IWL_ERR(mld, "Blink led mode not supported, used default\n");
+		fallthrough;
+	case IWL_LED_DEFAULT:
+	case IWL_LED_RF_STATE:
+		mode = IWL_LED_RF_STATE;
+		break;
+	case IWL_LED_DISABLE:
+		IWL_INFO(mld, "Led disabled\n");
+		return 0;
+	default:
+		return -EINVAL;
+	}
+
+	mld->led.name = kasprintf(GFP_KERNEL, "%s-led",
+				  wiphy_name(mld->hw->wiphy));
+	if (!mld->led.name)
+		return -ENOMEM;
+
+	mld->led.brightness_set = iwl_led_brightness_set;
+	mld->led.max_brightness = 1;
+
+	if (mode == IWL_LED_RF_STATE)
+		mld->led.default_trigger =
+			ieee80211_get_radio_led_name(mld->hw);
+
+	ret = led_classdev_register(mld->trans->dev, &mld->led);
+	if (ret) {
+		kfree(mld->led.name);
+		mld->led.name = NULL;
+		IWL_INFO(mld, "Failed to enable led\n");
+	}
+
+	return ret;
+}
+
+void iwl_mld_led_config_fw(struct iwl_mld *mld)
+{
+	if (!mld->led.name)
+		return;
+
+	iwl_mld_send_led_fw_cmd(mld, mld->led.brightness > 0);
+}
+
+void iwl_mld_leds_exit(struct iwl_mld *mld)
+{
+	if (!mld->led.name)
+		return;
+
+	led_classdev_unregister(&mld->led);
+	kfree(mld->led.name);
+	mld->led.name = NULL;
+}
diff --git a/drivers/net/wireless/intel/iwlwifi/mld/led.h b/drivers/net/wireless/intel/iwlwifi/mld/led.h
new file mode 100644
index 000000000000..e4ab22e58de6
--- /dev/null
+++ b/drivers/net/wireless/intel/iwlwifi/mld/led.h
@@ -0,0 +1,29 @@ 
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+/*
+ * Copyright (C) 2024 Intel Corporation
+ */
+#ifndef __iwl_mld_led_h__
+#define __iwl_mld_led_h__
+
+#include "mld.h"
+
+#ifdef CONFIG_IWLWIFI_LEDS
+int iwl_mld_leds_init(struct iwl_mld *mld);
+void iwl_mld_leds_exit(struct iwl_mld *mld);
+void iwl_mld_led_config_fw(struct iwl_mld *mld);
+#else
+static inline int iwl_mld_leds_init(struct iwl_mld *mld)
+{
+	return 0;
+}
+
+static inline void iwl_mld_leds_exit(struct iwl_mld *mld)
+{
+}
+
+static inline void iwl_mld_led_config_fw(struct iwl_mld *mld)
+{
+}
+#endif
+
+#endif /* __iwl_mld_led_h__ */