mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2025-08-05 16:54:27 +00:00
4b6652bc6d
Register a struct led_classdev with the kernel's LED subsystem and create a throughput-based trigger for it. Then mac80211 makes the LED blink. Tested with Tenda U12 (RTL8812AU), Tenda U9 (RTL8811CU), TP-Link Archer T2U Nano (RTL8811AU), TP-Link Archer T3U Plus (RTL8812BU), Edimax EW-7611UCB (RTL8821AU), LM842 (RTL8822CU). Also tested with devices which don't have LEDs: the laptop's internal RTL8822CE and a no-name RTL8723DU. Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com> Acked-by: Ping-Ke Shih <pkshih@realtek.com> Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Link: https://patch.msgid.link/6c43451f-ab2f-4e76-ac6e-ff5a18dd981d@gmail.com
73 lines
1.9 KiB
C
73 lines
1.9 KiB
C
// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
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/* Copyright(c) 2025 Realtek Corporation
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*/
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#include "main.h"
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#include "debug.h"
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#include "led.h"
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static int rtw_led_set_blocking(struct led_classdev *led,
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enum led_brightness brightness)
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{
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struct rtw_dev *rtwdev = container_of(led, struct rtw_dev, led_cdev);
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rtwdev->chip->ops->led_set(led, brightness);
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return 0;
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}
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void rtw_led_init(struct rtw_dev *rtwdev)
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{
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static const struct ieee80211_tpt_blink rtw_tpt_blink[] = {
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{ .throughput = 0 * 1024, .blink_time = 334 },
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{ .throughput = 1 * 1024, .blink_time = 260 },
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{ .throughput = 5 * 1024, .blink_time = 220 },
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{ .throughput = 10 * 1024, .blink_time = 190 },
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{ .throughput = 20 * 1024, .blink_time = 170 },
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{ .throughput = 50 * 1024, .blink_time = 150 },
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{ .throughput = 70 * 1024, .blink_time = 130 },
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{ .throughput = 100 * 1024, .blink_time = 110 },
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{ .throughput = 200 * 1024, .blink_time = 80 },
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{ .throughput = 300 * 1024, .blink_time = 50 },
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};
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struct led_classdev *led = &rtwdev->led_cdev;
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int err;
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if (!rtwdev->chip->ops->led_set)
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return;
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if (rtw_hci_type(rtwdev) == RTW_HCI_TYPE_PCIE)
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led->brightness_set = rtwdev->chip->ops->led_set;
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else
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led->brightness_set_blocking = rtw_led_set_blocking;
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snprintf(rtwdev->led_name, sizeof(rtwdev->led_name),
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"rtw88-%s", dev_name(rtwdev->dev));
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led->name = rtwdev->led_name;
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led->max_brightness = LED_ON;
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led->default_trigger =
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ieee80211_create_tpt_led_trigger(rtwdev->hw,
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IEEE80211_TPT_LEDTRIG_FL_RADIO,
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rtw_tpt_blink,
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ARRAY_SIZE(rtw_tpt_blink));
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err = led_classdev_register(rtwdev->dev, led);
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if (err) {
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rtw_warn(rtwdev, "Failed to register the LED, error %d\n", err);
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return;
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}
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rtwdev->led_registered = true;
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}
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void rtw_led_deinit(struct rtw_dev *rtwdev)
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{
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struct led_classdev *led = &rtwdev->led_cdev;
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if (!rtwdev->led_registered)
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return;
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rtwdev->chip->ops->led_set(led, LED_OFF);
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led_classdev_unregister(led);
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}
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