18e99ea8dSJohannes Berg // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
28e99ea8dSJohannes Berg /*
38e99ea8dSJohannes Berg * Copyright (C) 2012-2014, 2018-2019 Intel Corporation
48e99ea8dSJohannes Berg * Copyright (C) 2017 Intel Deutschland GmbH
58e99ea8dSJohannes Berg */
6e705c121SKalle Valo #include <linux/leds.h>
7e705c121SKalle Valo #include "iwl-io.h"
8e705c121SKalle Valo #include "iwl-csr.h"
9e705c121SKalle Valo #include "mvm.h"
10e705c121SKalle Valo
iwl_mvm_send_led_fw_cmd(struct iwl_mvm * mvm,bool on)117089ae63SJohannes Berg static void iwl_mvm_send_led_fw_cmd(struct iwl_mvm *mvm, bool on)
12e705c121SKalle Valo {
137089ae63SJohannes Berg struct iwl_led_cmd led_cmd = {
147089ae63SJohannes Berg .status = cpu_to_le32(on),
157089ae63SJohannes Berg };
167089ae63SJohannes Berg struct iwl_host_cmd cmd = {
177089ae63SJohannes Berg .id = WIDE_ID(LONG_GROUP, LEDS_CMD),
187089ae63SJohannes Berg .len = { sizeof(led_cmd), },
197089ae63SJohannes Berg .data = { &led_cmd, },
207089ae63SJohannes Berg .flags = CMD_ASYNC,
217089ae63SJohannes Berg };
227089ae63SJohannes Berg int err;
237089ae63SJohannes Berg
247089ae63SJohannes Berg if (!iwl_mvm_firmware_running(mvm))
257089ae63SJohannes Berg return;
267089ae63SJohannes Berg
277089ae63SJohannes Berg err = iwl_mvm_send_cmd(mvm, &cmd);
287089ae63SJohannes Berg
297089ae63SJohannes Berg if (err)
307089ae63SJohannes Berg IWL_WARN(mvm, "LED command failed: %d\n", err);
31e705c121SKalle Valo }
32e705c121SKalle Valo
iwl_mvm_led_set(struct iwl_mvm * mvm,bool on)337089ae63SJohannes Berg static void iwl_mvm_led_set(struct iwl_mvm *mvm, bool on)
34e705c121SKalle Valo {
352eabc84dSLuca Coelho if (fw_has_capa(&mvm->fw->ucode_capa,
362eabc84dSLuca Coelho IWL_UCODE_TLV_CAPA_LED_CMD_SUPPORT)) {
377089ae63SJohannes Berg iwl_mvm_send_led_fw_cmd(mvm, on);
387089ae63SJohannes Berg return;
397089ae63SJohannes Berg }
407089ae63SJohannes Berg
417089ae63SJohannes Berg iwl_write32(mvm->trans, CSR_LED_REG,
427089ae63SJohannes Berg on ? CSR_LED_REG_TURN_ON : CSR_LED_REG_TURN_OFF);
43e705c121SKalle Valo }
44e705c121SKalle Valo
iwl_led_brightness_set(struct led_classdev * led_cdev,enum led_brightness brightness)45e705c121SKalle Valo static void iwl_led_brightness_set(struct led_classdev *led_cdev,
46e705c121SKalle Valo enum led_brightness brightness)
47e705c121SKalle Valo {
48e705c121SKalle Valo struct iwl_mvm *mvm = container_of(led_cdev, struct iwl_mvm, led);
497089ae63SJohannes Berg
507089ae63SJohannes Berg iwl_mvm_led_set(mvm, brightness > 0);
51e705c121SKalle Valo }
52e705c121SKalle Valo
iwl_mvm_leds_init(struct iwl_mvm * mvm)53e705c121SKalle Valo int iwl_mvm_leds_init(struct iwl_mvm *mvm)
54e705c121SKalle Valo {
55e705c121SKalle Valo int mode = iwlwifi_mod_params.led_mode;
56e705c121SKalle Valo int ret;
57e705c121SKalle Valo
58e705c121SKalle Valo switch (mode) {
59e705c121SKalle Valo case IWL_LED_BLINK:
60e705c121SKalle Valo IWL_ERR(mvm, "Blink led mode not supported, used default\n");
61*5a2abdcaSGustavo A. R. Silva fallthrough;
62e705c121SKalle Valo case IWL_LED_DEFAULT:
63e705c121SKalle Valo case IWL_LED_RF_STATE:
64e705c121SKalle Valo mode = IWL_LED_RF_STATE;
65e705c121SKalle Valo break;
66e705c121SKalle Valo case IWL_LED_DISABLE:
67e705c121SKalle Valo IWL_INFO(mvm, "Led disabled\n");
68e705c121SKalle Valo return 0;
69e705c121SKalle Valo default:
70e705c121SKalle Valo return -EINVAL;
71e705c121SKalle Valo }
72e705c121SKalle Valo
73e705c121SKalle Valo mvm->led.name = kasprintf(GFP_KERNEL, "%s-led",
74e705c121SKalle Valo wiphy_name(mvm->hw->wiphy));
755974fbb5SJohannes Berg if (!mvm->led.name)
765974fbb5SJohannes Berg return -ENOMEM;
775974fbb5SJohannes Berg
78e705c121SKalle Valo mvm->led.brightness_set = iwl_led_brightness_set;
79e705c121SKalle Valo mvm->led.max_brightness = 1;
80e705c121SKalle Valo
81e705c121SKalle Valo if (mode == IWL_LED_RF_STATE)
82e705c121SKalle Valo mvm->led.default_trigger =
83e705c121SKalle Valo ieee80211_get_radio_led_name(mvm->hw);
84e705c121SKalle Valo
85e705c121SKalle Valo ret = led_classdev_register(mvm->trans->dev, &mvm->led);
86e705c121SKalle Valo if (ret) {
87e705c121SKalle Valo kfree(mvm->led.name);
88e705c121SKalle Valo IWL_INFO(mvm, "Failed to enable led\n");
89e705c121SKalle Valo return ret;
90e705c121SKalle Valo }
91e705c121SKalle Valo
92de8ba41bSLiad Kaufman mvm->init_status |= IWL_MVM_INIT_STATUS_LEDS_INIT_COMPLETE;
93e705c121SKalle Valo return 0;
94e705c121SKalle Valo }
95e705c121SKalle Valo
iwl_mvm_leds_sync(struct iwl_mvm * mvm)967089ae63SJohannes Berg void iwl_mvm_leds_sync(struct iwl_mvm *mvm)
977089ae63SJohannes Berg {
987089ae63SJohannes Berg if (!(mvm->init_status & IWL_MVM_INIT_STATUS_LEDS_INIT_COMPLETE))
997089ae63SJohannes Berg return;
1007089ae63SJohannes Berg
1017089ae63SJohannes Berg /*
1027089ae63SJohannes Berg * if we control through the register, we're doing it
1037089ae63SJohannes Berg * even when the firmware isn't up, so no need to sync
1047089ae63SJohannes Berg */
1057d34a7d7SLuca Coelho if (mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_8000)
1067089ae63SJohannes Berg return;
1077089ae63SJohannes Berg
1087089ae63SJohannes Berg iwl_mvm_led_set(mvm, mvm->led.brightness > 0);
1097089ae63SJohannes Berg }
1107089ae63SJohannes Berg
iwl_mvm_leds_exit(struct iwl_mvm * mvm)111e705c121SKalle Valo void iwl_mvm_leds_exit(struct iwl_mvm *mvm)
112e705c121SKalle Valo {
1134aa234eeSJohannes Berg if (!(mvm->init_status & IWL_MVM_INIT_STATUS_LEDS_INIT_COMPLETE))
114e705c121SKalle Valo return;
115e705c121SKalle Valo
116e705c121SKalle Valo led_classdev_unregister(&mvm->led);
117e705c121SKalle Valo kfree(mvm->led.name);
118de8ba41bSLiad Kaufman mvm->init_status &= ~IWL_MVM_INIT_STATUS_LEDS_INIT_COMPLETE;
119e705c121SKalle Valo }
120