Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * Topstar Laptop ACPI Extras driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  * Copyright (c) 2009 Herton Ronaldo Krzesinski <herton@mandriva.com.br>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  * Copyright (c) 2018 Guillaume Douézan-Grard
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8)  * Implementation inspired by existing x86 platform drivers, in special
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9)  * asus/eepc/fujitsu-laptop, thanks to their authors.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) #include <linux/acpi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) #include <linux/dmi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) #include <linux/input.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) #include <linux/input/sparse-keymap.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) #include <linux/leds.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) #include <linux/platform_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) #define TOPSTAR_LAPTOP_CLASS "topstar"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) struct topstar_laptop {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 	struct acpi_device *device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 	struct platform_device *platform;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 	struct input_dev *input;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 	struct led_classdev led;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35)  * LED
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) static enum led_brightness topstar_led_get(struct led_classdev *led)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 	return led->brightness;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) static int topstar_led_set(struct led_classdev *led,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 		enum led_brightness state)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 	struct topstar_laptop *topstar = container_of(led,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 			struct topstar_laptop, led);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 	struct acpi_object_list params;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 	union acpi_object in_obj;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 	unsigned long long int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 	acpi_status status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 	params.count = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 	params.pointer = &in_obj;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 	in_obj.type = ACPI_TYPE_INTEGER;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 	in_obj.integer.value = 0x83;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 	 * Topstar ACPI returns 0x30001 when the LED is ON and 0x30000 when it
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 	 * is OFF.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 	status = acpi_evaluate_integer(topstar->device->handle,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 			"GETX", &params, &ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 	if (ACPI_FAILURE(status))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 		return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 	 * FNCX(0x83) toggles the LED (more precisely, it is supposed to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 	 * act as an hardware switch and disconnect the WLAN adapter but
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 	 * it seems to be faulty on some models like the Topstar U931
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 	 * Notebook).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 	if ((ret == 0x30001 && state == LED_OFF)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 			|| (ret == 0x30000 && state != LED_OFF)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 		status = acpi_execute_simple_method(topstar->device->handle,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 				"FNCX", 0x83);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 		if (ACPI_FAILURE(status))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 			return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) static int topstar_led_init(struct topstar_laptop *topstar)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 	topstar->led = (struct led_classdev) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 		.default_trigger = "rfkill0",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 		.brightness_get = topstar_led_get,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 		.brightness_set_blocking = topstar_led_set,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 		.name = TOPSTAR_LAPTOP_CLASS "::wlan",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 	};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 	return led_classdev_register(&topstar->platform->dev, &topstar->led);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) static void topstar_led_exit(struct topstar_laptop *topstar)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 	led_classdev_unregister(&topstar->led);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103)  * Input
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) static const struct key_entry topstar_keymap[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 	{ KE_KEY, 0x80, { KEY_BRIGHTNESSUP } },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 	{ KE_KEY, 0x81, { KEY_BRIGHTNESSDOWN } },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	{ KE_KEY, 0x83, { KEY_VOLUMEUP } },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 	{ KE_KEY, 0x84, { KEY_VOLUMEDOWN } },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 	{ KE_KEY, 0x85, { KEY_MUTE } },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 	{ KE_KEY, 0x86, { KEY_SWITCHVIDEOMODE } },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 	{ KE_KEY, 0x87, { KEY_F13 } }, /* touchpad enable/disable key */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 	{ KE_KEY, 0x88, { KEY_WLAN } },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 	{ KE_KEY, 0x8a, { KEY_WWW } },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 	{ KE_KEY, 0x8b, { KEY_MAIL } },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 	{ KE_KEY, 0x8c, { KEY_MEDIA } },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 	/* Known non hotkey events don't handled or that we don't care yet */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 	{ KE_IGNORE, 0x82, }, /* backlight event */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 	{ KE_IGNORE, 0x8e, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 	{ KE_IGNORE, 0x8f, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 	{ KE_IGNORE, 0x90, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 	 * 'G key' generate two event codes, convert to only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 	 * one event/key code for now, consider replacing by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 	 * a switch (3G switch - SW_3G?)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 	{ KE_KEY, 0x96, { KEY_F14 } },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 	{ KE_KEY, 0x97, { KEY_F14 } },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 	{ KE_END, 0 }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) static void topstar_input_notify(struct topstar_laptop *topstar, int event)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 	if (!sparse_keymap_report_event(topstar->input, event, 1, true))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 		pr_info("unknown event = 0x%02x\n", event);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) static int topstar_input_init(struct topstar_laptop *topstar)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 	struct input_dev *input;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 	input = input_allocate_device();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 	if (!input)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 	input->name = "Topstar Laptop extra buttons";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 	input->phys = TOPSTAR_LAPTOP_CLASS "/input0";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 	input->id.bustype = BUS_HOST;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 	input->dev.parent = &topstar->platform->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 	err = sparse_keymap_setup(input, topstar_keymap, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 	if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 		pr_err("Unable to setup input device keymap\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 		goto err_free_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 	err = input_register_device(input);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 	if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 		pr_err("Unable to register input device\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 		goto err_free_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 	topstar->input = input;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) err_free_dev:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 	input_free_device(input);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) static void topstar_input_exit(struct topstar_laptop *topstar)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 	input_unregister_device(topstar->input);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182)  * Platform
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) static struct platform_driver topstar_platform_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 	.driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 		.name = TOPSTAR_LAPTOP_CLASS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) static int topstar_platform_init(struct topstar_laptop *topstar)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 	topstar->platform = platform_device_alloc(TOPSTAR_LAPTOP_CLASS, -1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 	if (!topstar->platform)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 	platform_set_drvdata(topstar->platform, topstar);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 	err = platform_device_add(topstar->platform);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 	if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 		goto err_device_put;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) err_device_put:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 	platform_device_put(topstar->platform);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) static void topstar_platform_exit(struct topstar_laptop *topstar)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 	platform_device_unregister(topstar->platform);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218)  * ACPI
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) static int topstar_acpi_fncx_switch(struct acpi_device *device, bool state)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 	acpi_status status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 	u64 arg = state ? 0x86 : 0x87;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 	status = acpi_execute_simple_method(device->handle, "FNCX", arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 	if (ACPI_FAILURE(status)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 		pr_err("Unable to switch FNCX notifications\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 		return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) static void topstar_acpi_notify(struct acpi_device *device, u32 event)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 	struct topstar_laptop *topstar = acpi_driver_data(device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 	static bool dup_evnt[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 	bool *dup;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 	/* 0x83 and 0x84 key events comes duplicated... */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 	if (event == 0x83 || event == 0x84) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 		dup = &dup_evnt[event - 0x83];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 		if (*dup) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 			*dup = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 			return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 		*dup = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 	topstar_input_notify(topstar, event);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) static int topstar_acpi_init(struct topstar_laptop *topstar)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 	return topstar_acpi_fncx_switch(topstar->device, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) static void topstar_acpi_exit(struct topstar_laptop *topstar)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 	topstar_acpi_fncx_switch(topstar->device, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265)  * Enable software-based WLAN LED control on systems with defective
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266)  * hardware switch.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) static bool led_workaround;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) static int dmi_led_workaround(const struct dmi_system_id *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) 	led_workaround = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) static const struct dmi_system_id topstar_dmi_ids[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 		.callback = dmi_led_workaround,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 		.ident = "Topstar U931/RVP7",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 		.matches = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 			DMI_MATCH(DMI_BOARD_NAME, "U931"),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) 			DMI_MATCH(DMI_BOARD_VERSION, "RVP7"),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 		},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 	{}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) static int topstar_acpi_add(struct acpi_device *device)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 	struct topstar_laptop *topstar;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) 	dmi_check_system(topstar_dmi_ids);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) 	topstar = kzalloc(sizeof(struct topstar_laptop), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) 	if (!topstar)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) 	strcpy(acpi_device_name(device), "Topstar TPSACPI");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) 	strcpy(acpi_device_class(device), TOPSTAR_LAPTOP_CLASS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) 	device->driver_data = topstar;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) 	topstar->device = device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) 	err = topstar_acpi_init(topstar);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) 	if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) 		goto err_free;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) 	err = topstar_platform_init(topstar);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) 	if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) 		goto err_acpi_exit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) 	err = topstar_input_init(topstar);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) 	if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) 		goto err_platform_exit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) 	if (led_workaround) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) 		err = topstar_led_init(topstar);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) 		if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) 			goto err_input_exit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) err_input_exit:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) 	topstar_input_exit(topstar);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) err_platform_exit:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) 	topstar_platform_exit(topstar);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) err_acpi_exit:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) 	topstar_acpi_exit(topstar);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) err_free:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) 	kfree(topstar);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) static int topstar_acpi_remove(struct acpi_device *device)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) 	struct topstar_laptop *topstar = acpi_driver_data(device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) 	if (led_workaround)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) 		topstar_led_exit(topstar);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) 	topstar_input_exit(topstar);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) 	topstar_platform_exit(topstar);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) 	topstar_acpi_exit(topstar);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) 	kfree(topstar);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) static const struct acpi_device_id topstar_device_ids[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) 	{ "TPS0001", 0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) 	{ "TPSACPI01", 0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) 	{ "", 0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) MODULE_DEVICE_TABLE(acpi, topstar_device_ids);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) static struct acpi_driver topstar_acpi_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) 	.name = "Topstar laptop ACPI driver",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) 	.class = TOPSTAR_LAPTOP_CLASS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) 	.ids = topstar_device_ids,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) 	.ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) 		.add = topstar_acpi_add,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) 		.remove = topstar_acpi_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) 		.notify = topstar_acpi_notify,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) static int __init topstar_laptop_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) 	ret = platform_driver_register(&topstar_platform_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) 	if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) 	ret = acpi_bus_register_driver(&topstar_acpi_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) 	if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) 		goto err_driver_unreg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) 	pr_info("ACPI extras driver loaded\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) err_driver_unreg:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) 	platform_driver_unregister(&topstar_platform_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) 	return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) static void __exit topstar_laptop_exit(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) 	acpi_bus_unregister_driver(&topstar_acpi_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) 	platform_driver_unregister(&topstar_platform_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) module_init(topstar_laptop_init);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) module_exit(topstar_laptop_exit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) MODULE_AUTHOR("Herton Ronaldo Krzesinski");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) MODULE_AUTHOR("Guillaume Douézan-Grard");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) MODULE_DESCRIPTION("Topstar Laptop ACPI Extras driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) MODULE_LICENSE("GPL");