1 // SPDX-License-Identifier: GPL-2.0-only
4  * Copyright(c) 2003 - 2014 Intel Corporation. All rights reserved.
17 #include "iwl-io.h"
18 #include "iwl-trans.h"
19 #include "iwl-modparams.h"
38 	{ .throughput = 1 * 1024 - 1, .blink_time = 260 },
39 	{ .throughput = 5 * 1024 - 1, .blink_time = 220 },
40 	{ .throughput = 10 * 1024 - 1, .blink_time = 190 },
41 	{ .throughput = 20 * 1024 - 1, .blink_time = 170 },
42 	{ .throughput = 50 * 1024 - 1, .blink_time = 150 },
43 	{ .throughput = 70 * 1024 - 1, .blink_time = 130 },
44 	{ .throughput = 100 * 1024 - 1, .blink_time = 110 },
45 	{ .throughput = 200 * 1024 - 1, .blink_time = 80 },
46 	{ .throughput = 300 * 1024 - 1, .blink_time = 50 },
49 /* Set led register off */
52 	iwl_write32(priv->trans, CSR_LED_REG, CSR_LED_REG_TURN_ON);  in iwlagn_led_enable()
56  * Adjust led blink rate to compensate on a MAC Clock difference on every HW
57  * Led blink rate analysis showed an average deviation of 20% on 5000 series
59  * Need to compensate on the led on/off time per HW according to the deviation
60  * to achieve the desired led frequency
61  * The calculation is: (100-averageDeviation)/100 * blinkTime
63  *     compensation = (100 - averageDeviation) * 64 / 100
71 			"use pre-defined blinking time\n");  in iwl_blink_compensation()
88 	reg = iwl_read32(priv->trans, CSR_LED_REG);  in iwl_send_led_cmd()
90 		iwl_write32(priv->trans, CSR_LED_REG,  in iwl_send_led_cmd()
96 /* Set led pattern command */
107 	if (!test_bit(STATUS_READY, &priv->status))  in iwl_led_cmd()
108 		return -EBUSY;  in iwl_led_cmd()
110 	if (priv->blink_on == on && priv->blink_off == off)  in iwl_led_cmd()
114 		/* led is SOLID_ON */  in iwl_led_cmd()
119 				priv->trans->trans_cfg->base_params->led_compensation);  in iwl_led_cmd()
121 				priv->trans->trans_cfg->base_params->led_compensation);  in iwl_led_cmd()
125 		priv->blink_on = on;  in iwl_led_cmd()
126 		priv->blink_off = off;  in iwl_led_cmd()
134 	struct iwl_priv *priv = container_of(led_cdev, struct iwl_priv, led);  in iwl_led_brightness_set()
150 	struct iwl_priv *priv = container_of(led_cdev, struct iwl_priv, led);  in iwl_led_blink_set()
157 	int mode = iwlwifi_mod_params.led_mode;  in iwl_leds_init()  local
160 	if (mode == IWL_LED_DISABLE) {  in iwl_leds_init()
161 		IWL_INFO(priv, "Led disabled\n");  in iwl_leds_init()
164 	if (mode == IWL_LED_DEFAULT)  in iwl_leds_init()
165 		mode = priv->cfg->led_mode;  in iwl_leds_init()
167 	priv->led.name = kasprintf(GFP_KERNEL, "%s-led",  in iwl_leds_init()
168 				   wiphy_name(priv->hw->wiphy));  in iwl_leds_init()
169 	if (!priv->led.name)  in iwl_leds_init()
172 	priv->led.brightness_set = iwl_led_brightness_set;  in iwl_leds_init()
173 	priv->led.blink_set = iwl_led_blink_set;  in iwl_leds_init()
174 	priv->led.max_brightness = 1;  in iwl_leds_init()
176 	switch (mode) {  in iwl_leds_init()
181 		priv->led.default_trigger =  in iwl_leds_init()
182 			ieee80211_create_tpt_led_trigger(priv->hw,  in iwl_leds_init()
187 		priv->led.default_trigger =  in iwl_leds_init()
188 			ieee80211_get_radio_led_name(priv->hw);  in iwl_leds_init()
192 	ret = led_classdev_register(priv->trans->dev, &priv->led);  in iwl_leds_init()
194 		kfree(priv->led.name);  in iwl_leds_init()
198 	priv->led_registered = true;  in iwl_leds_init()
203 	if (!priv->led_registered)  in iwl_leds_exit()
206 	led_classdev_unregister(&priv->led);  in iwl_leds_exit()
207 	kfree(priv->led.name);  in iwl_leds_exit()