108 lines
2.6 KiB
C
108 lines
2.6 KiB
C
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/*
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* Copyright (C) 2020, Samsung Electronics Co. Ltd. All Rights Reserved.
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*
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* This program 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 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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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*/
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#include "../utility/shub_utility.h"
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#include "../comm/shub_comm.h"
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#include "../sensor/light.h"
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#include "../sensormanager/shub_sensor_type.h"
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#include "../utility/shub_file_manager.h"
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#include "shub_panel.h"
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#include <linux/notifier.h>
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#define LCD_PANEL_LCD_TYPE "/sys/class/lcd/panel/lcd_type"
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static u8 lcd_type_flag;
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static void get_panel_lcd_type(void)
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{
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char lcd_type_data[256];
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int ret;
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ret = shub_file_read(LCD_PANEL_LCD_TYPE, lcd_type_data, sizeof(lcd_type_data), 0);
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if (ret < 0) {
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shub_errf("file read error %d", ret);
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return;
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} else if (ret < 2){
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shub_errf("unexpected type = %s(%d)", lcd_type_data, ret);
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return;
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}
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/*
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* lcd_type_data[ret - 2], which type have different transmission ratio.
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* [0 ~ 2] : 0.7%, [3] : 15%, [4] : 40%
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*/
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if (lcd_type_data[ret - 2] >= '0' && lcd_type_data[ret - 2] <= '2')
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lcd_type_flag = 0;
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else if (lcd_type_data[ret - 2] == '3')
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lcd_type_flag = 1;
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else
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lcd_type_flag = 2;
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shub_infof("lcd_type_flag : %d", lcd_type_flag);
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}
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static int fm_ready_panel(struct notifier_block *this, unsigned long event, void *ptr)
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{
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shub_infof("notify event %d", event);
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return NOTIFY_OK;
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}
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static struct notifier_block fm_notifier = {
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.notifier_call = fm_ready_panel,
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};
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void init_shub_panel(void)
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{
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shub_infof();
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register_file_manager_ready_callback(&fm_notifier);
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}
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void remove_shub_panel(void)
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{
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shub_infof();
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}
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int save_panel_lcd_type(void)
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{
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int ret = 0;
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get_panel_lcd_type();
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ret = shub_file_write_no_wait(UID_FILE_PATH, (char *)&lcd_type_flag, sizeof(lcd_type_flag), 0);
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if (ret != sizeof(lcd_type_flag)) {
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shub_errf("failed");
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return -EIO;
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}
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shub_infof("save lcd_type_flag %d", lcd_type_flag);
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return ret;
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}
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bool is_lcd_changed(void)
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{
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int ret = 0;
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u8 curr_lcd_type_flag = 0;
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get_panel_lcd_type();
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ret = shub_file_read(UID_FILE_PATH, &curr_lcd_type_flag, sizeof(curr_lcd_type_flag), 0);
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if (ret != sizeof(curr_lcd_type_flag)) {
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shub_errf("saved lcd type read failed %d", ret);
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return false;
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}
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shub_infof("%d -> %d", lcd_type_flag, curr_lcd_type_flag);
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return (lcd_type_flag != curr_lcd_type_flag);
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}
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