mirror of
https://github.com/wessel-novacustom/clevo-keyboard.git
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142 lines
4.3 KiB
C
142 lines
4.3 KiB
C
/*!
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* Copyright (c) 2018-2020 TUXEDO Computers GmbH <tux@tuxedocomputers.com>
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*
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* This file is part of tuxedo-keyboard.
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*
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* tuxedo-keyboard is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This software is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this software. If not, see <https://www.gnu.org/licenses/>.
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*/
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#ifndef TUXEDO_KEYBOARD_COMMON_H
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#define TUXEDO_KEYBOARD_COMMON_H
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/acpi.h>
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#include <linux/dmi.h>
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#include <linux/platform_device.h>
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#include <linux/input.h>
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#include <linux/input/sparse-keymap.h>
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/* :::: Module specific Constants and simple Macros :::: */
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#define __TUXEDO_PR(lvl, fmt, ...) do { pr_##lvl(fmt, ##__VA_ARGS__); } while (0)
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#define TUXEDO_INFO(fmt, ...) __TUXEDO_PR(info, fmt, ##__VA_ARGS__)
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#define TUXEDO_ERROR(fmt, ...) __TUXEDO_PR(err, fmt, ##__VA_ARGS__)
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#define TUXEDO_DEBUG(fmt, ...) __TUXEDO_PR(debug, "[%s:%u] " fmt, __func__, __LINE__, ##__VA_ARGS__)
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#ifndef DRIVER_NAME
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#define DRIVER_NAME "tuxedo_keyboard"
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#endif
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struct tuxedo_keyboard_driver {
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// Platform driver provided by driver
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struct platform_driver *platform_driver;
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// Probe method provided by driver
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int (*probe)(struct platform_device *);
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// Keymap provided by driver
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struct key_entry *key_map;
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// Input device reference filled in on module init after probe success
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struct input_dev *input_device;
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};
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// Global module devices
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static struct platform_device *tuxedo_platform_device = NULL;
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static struct input_dev *tuxedo_input_device = NULL;
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// Currently chosen driver
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static struct tuxedo_keyboard_driver *current_driver = NULL;
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struct platform_device *tuxedo_keyboard_init_driver(struct tuxedo_keyboard_driver *tk_driver);
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void tuxedo_keyboard_remove_driver(struct tuxedo_keyboard_driver *tk_driver);
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/**
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* Basically a copy of the existing report event but doesn't report unknown events
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*/
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bool sparse_keymap_report_known_event(struct input_dev *dev, unsigned int code,
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unsigned int value, bool autorelease)
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{
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const struct key_entry *ke =
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sparse_keymap_entry_from_scancode(dev, code);
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if (ke) {
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sparse_keymap_report_entry(dev, ke, value, autorelease);
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return true;
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}
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return false;
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}
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struct color_t {
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u32 code;
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char* name;
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};
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struct color_list_t {
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uint size;
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struct color_t colors[];
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};
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/**
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* Commonly used standard colors
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*/
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static struct color_list_t color_list = {
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.size = 8,
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.colors = {
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{ .name = "BLACK", .code = 0x000000 }, // 0
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{ .name = "RED", .code = 0xFF0000 }, // 1
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{ .name = "GREEN", .code = 0x00FF00 }, // 2
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{ .name = "BLUE", .code = 0x0000FF }, // 3
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{ .name = "YELLOW", .code = 0xFFFF00 }, // 4
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{ .name = "MAGENTA", .code = 0xFF00FF }, // 5
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{ .name = "CYAN", .code = 0x00FFFF }, // 6
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{ .name = "WHITE", .code = 0xFFFFFF }, // 7
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}
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};
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/**
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* Looks up a color in the color_list
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*
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* Returns found color value, or 0xffffffff if string did not match
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*/
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static u32 color_lookup(const struct color_list_t *color_list, const char *color_name)
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{
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u32 found_color = 0xffffffff;
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int i;
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for (i = 0; i < color_list->size; ++i) {
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if (strcmp(color_list->colors[i].name, color_name) == 0) {
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found_color = color_list->colors[i].code;
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}
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}
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return found_color;
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}
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// Common parameters
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static int brightness_validator(const char *val,
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const struct kernel_param *brightness_param);
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static const struct kernel_param_ops param_ops_brightness_ops = {
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.set = brightness_validator,
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.get = param_get_int,
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};
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static ushort param_brightness = 0xffff; // Default unset value (higher than max)
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module_param_cb(brightness, ¶m_ops_brightness_ops, ¶m_brightness,
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S_IRUSR);
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MODULE_PARM_DESC(brightness, "Set the Keyboard Brightness");
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#define COLOR_STRING_LEN 20
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static char param_color[COLOR_STRING_LEN];
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module_param_string(color, param_color, COLOR_STRING_LEN, S_IRUSR);
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MODULE_PARM_DESC(color, "Preset color for the keyboard backlight as string");
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#endif |