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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/net/wireless/intel/iwlwifi/mvm/led.c
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/mvm/led.c')
-rw-r--r--drivers/net/wireless/intel/iwlwifi/mvm/led.c119
1 files changed, 119 insertions, 0 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/led.c b/drivers/net/wireless/intel/iwlwifi/mvm/led.c
new file mode 100644
index 000000000..1ea7c4425
--- /dev/null
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/led.c
@@ -0,0 +1,119 @@
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+/*
+ * Copyright (C) 2012-2014, 2018-2019 Intel Corporation
+ * Copyright (C) 2017 Intel Deutschland GmbH
+ */
+#include <linux/leds.h>
+#include "iwl-io.h"
+#include "iwl-csr.h"
+#include "mvm.h"
+
+static void iwl_mvm_send_led_fw_cmd(struct iwl_mvm *mvm, bool on)
+{
+ struct iwl_led_cmd led_cmd = {
+ .status = cpu_to_le32(on),
+ };
+ struct iwl_host_cmd cmd = {
+ .id = WIDE_ID(LONG_GROUP, LEDS_CMD),
+ .len = { sizeof(led_cmd), },
+ .data = { &led_cmd, },
+ .flags = CMD_ASYNC,
+ };
+ int err;
+
+ if (!iwl_mvm_firmware_running(mvm))
+ return;
+
+ err = iwl_mvm_send_cmd(mvm, &cmd);
+
+ if (err)
+ IWL_WARN(mvm, "LED command failed: %d\n", err);
+}
+
+static void iwl_mvm_led_set(struct iwl_mvm *mvm, bool on)
+{
+ if (fw_has_capa(&mvm->fw->ucode_capa,
+ IWL_UCODE_TLV_CAPA_LED_CMD_SUPPORT)) {
+ iwl_mvm_send_led_fw_cmd(mvm, on);
+ return;
+ }
+
+ iwl_write32(mvm->trans, CSR_LED_REG,
+ on ? CSR_LED_REG_TURN_ON : CSR_LED_REG_TURN_OFF);
+}
+
+static void iwl_led_brightness_set(struct led_classdev *led_cdev,
+ enum led_brightness brightness)
+{
+ struct iwl_mvm *mvm = container_of(led_cdev, struct iwl_mvm, led);
+
+ iwl_mvm_led_set(mvm, brightness > 0);
+}
+
+int iwl_mvm_leds_init(struct iwl_mvm *mvm)
+{
+ int mode = iwlwifi_mod_params.led_mode;
+ int ret;
+
+ switch (mode) {
+ case IWL_LED_BLINK:
+ IWL_ERR(mvm, "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(mvm, "Led disabled\n");
+ return 0;
+ default:
+ return -EINVAL;
+ }
+
+ mvm->led.name = kasprintf(GFP_KERNEL, "%s-led",
+ wiphy_name(mvm->hw->wiphy));
+ if (!mvm->led.name)
+ return -ENOMEM;
+
+ mvm->led.brightness_set = iwl_led_brightness_set;
+ mvm->led.max_brightness = 1;
+
+ if (mode == IWL_LED_RF_STATE)
+ mvm->led.default_trigger =
+ ieee80211_get_radio_led_name(mvm->hw);
+
+ ret = led_classdev_register(mvm->trans->dev, &mvm->led);
+ if (ret) {
+ kfree(mvm->led.name);
+ IWL_INFO(mvm, "Failed to enable led\n");
+ return ret;
+ }
+
+ mvm->init_status |= IWL_MVM_INIT_STATUS_LEDS_INIT_COMPLETE;
+ return 0;
+}
+
+void iwl_mvm_leds_sync(struct iwl_mvm *mvm)
+{
+ if (!(mvm->init_status & IWL_MVM_INIT_STATUS_LEDS_INIT_COMPLETE))
+ return;
+
+ /*
+ * if we control through the register, we're doing it
+ * even when the firmware isn't up, so no need to sync
+ */
+ if (mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_8000)
+ return;
+
+ iwl_mvm_led_set(mvm, mvm->led.brightness > 0);
+}
+
+void iwl_mvm_leds_exit(struct iwl_mvm *mvm)
+{
+ if (!(mvm->init_status & IWL_MVM_INIT_STATUS_LEDS_INIT_COMPLETE))
+ return;
+
+ led_classdev_unregister(&mvm->led);
+ kfree(mvm->led.name);
+ mvm->init_status &= ~IWL_MVM_INIT_STATUS_LEDS_INIT_COMPLETE;
+}