clevo-keyboard/src/uniwill_interfaces.h

/*!
 * Copyright (c) 2021 TUXEDO Computers GmbH <tux@tuxedocomputers.com>
 *
 * This file is part of tuxedo-keyboard.
 *
 * tuxedo-keyboard is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this software.  If not, see <https://www.gnu.org/licenses/>.
 */
#ifndef UNIWILL_INTERFACES_H
#define UNIWILL_INTERFACES_H

#include <linux/types.h>

#define UNIWILL_WMI_MGMT_GUID_BA	"ABBC0F6D-8EA1-11D1-00A0-C90629100000"
#define UNIWILL_WMI_MGMT_GUID_BB	"ABBC0F6E-8EA1-11D1-00A0-C90629100000"
#define UNIWILL_WMI_MGMT_GUID_BC	"ABBC0F6F-8EA1-11D1-00A0-C90629100000"

#define UNIWILL_WMI_EVENT_GUID_0	"ABBC0F70-8EA1-11D1-00A0-C90629100000"
#define UNIWILL_WMI_EVENT_GUID_1	"ABBC0F71-8EA1-11D1-00A0-C90629100000"
#define UNIWILL_WMI_EVENT_GUID_2	"ABBC0F72-8EA1-11D1-00A0-C90629100000"

#define MODULE_ALIAS_UNIWILL_WMI() \
	MODULE_ALIAS("wmi:" UNIWILL_WMI_EVENT_GUID_2); \
	MODULE_ALIAS("wmi:" UNIWILL_WMI_MGMT_GUID_BC);

#define UNIWILL_INTERFACE_WMI_STRID "uniwill_wmi"

typedef int (uniwill_read_ec_ram_t)(u16, u8*);
typedef int (uniwill_write_ec_ram_t)(u16, u8);
typedef void (uniwill_event_callb_t)(u32);

#define UW_EC_REG_KBD_BL_STATUS			0x078c
#define UW_EC_REG_KBD_BL_STATUS_SUBCMD_RESET	0x10

#define UW_EC_REG_KBD_BL_MAX_BRIGHTNESS		0x1801
#define UW_EC_REG_KBD_BL_WHITE_BRIGHTNESS	0x1802
#define UW_EC_REG_KBD_BL_RGB_RED_BRIGHTNESS	0x1803
#define UW_EC_REG_KBD_BL_RGB_GREEN_BRIGHTNESS	0x1805
#define UW_EC_REG_KBD_BL_RGB_BLUE_BRIGHTNESS	0x1808

struct uniwill_interface_t {
	char *string_id;
	uniwill_event_callb_t *event_callb;
	uniwill_read_ec_ram_t *read_ec_ram;
	uniwill_write_ec_ram_t *write_ec_ram;
};

int uniwill_add_interface(struct uniwill_interface_t *new_interface);
int uniwill_remove_interface(struct uniwill_interface_t *interface);
uniwill_read_ec_ram_t uniwill_read_ec_ram;
uniwill_write_ec_ram_t uniwill_write_ec_ram;
int uniwill_get_active_interface_id(char **id_str);

union uw_ec_read_return {
	u32 dword;
	struct {
		u8 data_low;
		u8 data_high;
	} bytes;
};

union uw_ec_write_return {
	u32 dword;
	struct {
		u8 addr_low;
		u8 addr_high;
		u8 data_low;
		u8 data_high;
	} bytes;
};

#endif