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diff --git a/arch/mips/loongson/lemote-2f/ec_kb3310b.h b/arch/mips/loongson/lemote-2f/ec_kb3310b.h
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index 000000000000..1595a21b315b
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+++ b/arch/mips/loongson/lemote-2f/ec_kb3310b.h
@@ -0,0 +1,188 @@
+/*
+ * KB3310B Embedded Controller
+ *
+ * Copyright (C) 2008 Lemote Inc.
+ * Author: liujl <liujl@lemote.com>, 2008-03-14
+ *
+ * This program 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 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef _EC_KB3310B_H
+#define _EC_KB3310B_H
+
+extern unsigned char ec_read(unsigned short addr);
+extern void ec_write(unsigned short addr, unsigned char val);
+extern int ec_query_seq(unsigned char cmd);
+extern int ec_query_event_num(void);
+extern int ec_get_event_num(void);
+
+typedef int (*sci_handler) (int status);
+extern sci_handler yeeloong_report_lid_status;
+
+#define SCI_IRQ_NUM 0x0A
+
+/*
+ * The following registers are determined by the EC index configuration.
+ * 1, fill the PORT_HIGH as EC register high part.
+ * 2, fill the PORT_LOW as EC register low part.
+ * 3, fill the PORT_DATA as EC register write data or get the data from it.
+ */
+#define EC_IO_PORT_HIGH 0x0381
+#define EC_IO_PORT_LOW 0x0382
+#define EC_IO_PORT_DATA 0x0383
+
+/*
+ * EC delay time is 500us for register and status access
+ */
+#define EC_REG_DELAY 500 /* unit : us */
+#define EC_CMD_TIMEOUT 0x1000
+
+/*
+ * EC access port for SCI communication
+ */
+#define EC_CMD_PORT 0x66
+#define EC_STS_PORT 0x66
+#define EC_DAT_PORT 0x62
+#define CMD_INIT_IDLE_MODE 0xdd
+#define CMD_EXIT_IDLE_MODE 0xdf
+#define CMD_INIT_RESET_MODE 0xd8
+#define CMD_REBOOT_SYSTEM 0x8c
+#define CMD_GET_EVENT_NUM 0x84
+#define CMD_PROGRAM_PIECE 0xda
+
+/* temperature & fan registers */
+#define REG_TEMPERATURE_VALUE 0xF458
+#define REG_FAN_AUTO_MAN_SWITCH 0xF459
+#define BIT_FAN_AUTO 0
+#define BIT_FAN_MANUAL 1
+#define REG_FAN_CONTROL 0xF4D2
+#define BIT_FAN_CONTROL_ON (1 << 0)
+#define BIT_FAN_CONTROL_OFF (0 << 0)
+#define REG_FAN_STATUS 0xF4DA
+#define BIT_FAN_STATUS_ON (1 << 0)
+#define BIT_FAN_STATUS_OFF (0 << 0)
+#define REG_FAN_SPEED_HIGH 0xFE22
+#define REG_FAN_SPEED_LOW 0xFE23
+#define REG_FAN_SPEED_LEVEL 0xF4CC
+/* fan speed divider */
+#define FAN_SPEED_DIVIDER 480000 /* (60*1000*1000/62.5/2)*/
+
+/* battery registers */
+#define REG_BAT_DESIGN_CAP_HIGH 0xF77D
+#define REG_BAT_DESIGN_CAP_LOW 0xF77E
+#define REG_BAT_FULLCHG_CAP_HIGH 0xF780
+#define REG_BAT_FULLCHG_CAP_LOW 0xF781
+#define REG_BAT_DESIGN_VOL_HIGH 0xF782
+#define REG_BAT_DESIGN_VOL_LOW 0xF783
+#define REG_BAT_CURRENT_HIGH 0xF784
+#define REG_BAT_CURRENT_LOW 0xF785
+#define REG_BAT_VOLTAGE_HIGH 0xF786
+#define REG_BAT_VOLTAGE_LOW 0xF787
+#define REG_BAT_TEMPERATURE_HIGH 0xF788
+#define REG_BAT_TEMPERATURE_LOW 0xF789
+#define REG_BAT_RELATIVE_CAP_HIGH 0xF492
+#define REG_BAT_RELATIVE_CAP_LOW 0xF493
+#define REG_BAT_VENDOR 0xF4C4
+#define FLAG_BAT_VENDOR_SANYO 0x01
+#define FLAG_BAT_VENDOR_SIMPLO 0x02
+#define REG_BAT_CELL_COUNT 0xF4C6
+#define FLAG_BAT_CELL_3S1P 0x03
+#define FLAG_BAT_CELL_3S2P 0x06
+#define REG_BAT_CHARGE 0xF4A2
+#define FLAG_BAT_CHARGE_DISCHARGE 0x01
+#define FLAG_BAT_CHARGE_CHARGE 0x02
+#define FLAG_BAT_CHARGE_ACPOWER 0x00
+#define REG_BAT_STATUS 0xF4B0
+#define BIT_BAT_STATUS_LOW (1 << 5)
+#define BIT_BAT_STATUS_DESTROY (1 << 2)
+#define BIT_BAT_STATUS_FULL (1 << 1)
+#define BIT_BAT_STATUS_IN (1 << 0)
+#define REG_BAT_CHARGE_STATUS 0xF4B1
+#define BIT_BAT_CHARGE_STATUS_OVERTEMP (1 << 2)
+#define BIT_BAT_CHARGE_STATUS_PRECHG (1 << 1)
+#define REG_BAT_STATE 0xF482
+#define BIT_BAT_STATE_CHARGING (1 << 1)
+#define BIT_BAT_STATE_DISCHARGING (1 << 0)
+#define REG_BAT_POWER 0xF440
+#define BIT_BAT_POWER_S3 (1 << 2)
+#define BIT_BAT_POWER_ON (1 << 1)
+#define BIT_BAT_POWER_ACIN (1 << 0)
+
+/* other registers */
+/* Audio: rd/wr */
+#define REG_AUDIO_VOLUME 0xF46C
+#define REG_AUDIO_MUTE 0xF4E7
+#define REG_AUDIO_BEEP 0xF4D0
+/* USB port power or not: rd/wr */
+#define REG_USB0_FLAG 0xF461
+#define REG_USB1_FLAG 0xF462
+#define REG_USB2_FLAG 0xF463
+#define BIT_USB_FLAG_ON 1
+#define BIT_USB_FLAG_OFF 0
+/* LID */
+#define REG_LID_DETECT 0xF4BD
+#define BIT_LID_DETECT_ON 1
+#define BIT_LID_DETECT_OFF 0
+/* CRT */
+#define REG_CRT_DETECT 0xF4AD
+#define BIT_CRT_DETECT_PLUG 1
+#define BIT_CRT_DETECT_UNPLUG 0
+/* LCD backlight brightness adjust: 9 levels */
+#define REG_DISPLAY_BRIGHTNESS 0xF4F5
+/* Black screen Status */
+#define BIT_DISPLAY_LCD_ON 1
+#define BIT_DISPLAY_LCD_OFF 0
+/* LCD backlight control: off/restore */
+#define REG_BACKLIGHT_CTRL 0xF7BD
+#define BIT_BACKLIGHT_ON 1
+#define BIT_BACKLIGHT_OFF 0
+/* Reset the machine auto-clear: rd/wr */
+#define REG_RESET 0xF4EC
+#define BIT_RESET_ON 1
+/* Light the led: rd/wr */
+#define REG_LED 0xF4C8
+#define BIT_LED_RED_POWER (1 << 0)
+#define BIT_LED_ORANGE_POWER (1 << 1)
+#define BIT_LED_GREEN_CHARGE (1 << 2)
+#define BIT_LED_RED_CHARGE (1 << 3)
+#define BIT_LED_NUMLOCK (1 << 4)
+/* Test led mode, all led on/off */
+#define REG_LED_TEST 0xF4C2
+#define BIT_LED_TEST_IN 1
+#define BIT_LED_TEST_OUT 0
+/* Camera on/off */
+#define REG_CAMERA_STATUS 0xF46A
+#define BIT_CAMERA_STATUS_ON 1
+#define BIT_CAMERA_STATUS_OFF 0
+#define REG_CAMERA_CONTROL 0xF7B7
+#define BIT_CAMERA_CONTROL_OFF 0
+#define BIT_CAMERA_CONTROL_ON 1
+/* Wlan Status */
+#define REG_WLAN 0xF4FA
+#define BIT_WLAN_ON 1
+#define BIT_WLAN_OFF 0
+#define REG_DISPLAY_LCD 0xF79F
+
+/* SCI Event Number from EC */
+enum {
+ EVENT_LID = 0x23, /* LID open/close */
+ EVENT_DISPLAY_TOGGLE, /* Fn+F3 for display switch */
+ EVENT_SLEEP, /* Fn+F1 for entering sleep mode */
+ EVENT_OVERTEMP, /* Over-temperature happened */
+ EVENT_CRT_DETECT, /* CRT is connected */
+ EVENT_CAMERA, /* Camera on/off */
+ EVENT_USB_OC2, /* USB2 Over Current occurred */
+ EVENT_USB_OC0, /* USB0 Over Current occurred */
+ EVENT_BLACK_SCREEN, /* Turn on/off backlight */
+ EVENT_AUDIO_MUTE, /* Mute on/off */
+ EVENT_DISPLAY_BRIGHTNESS,/* LCD backlight brightness adjust */
+ EVENT_AC_BAT, /* AC & Battery relative issue */
+ EVENT_AUDIO_VOLUME, /* Volume adjust */
+ EVENT_WLAN, /* Wlan on/off */
+ EVENT_END
+};
+
+#endif /* !_EC_KB3310B_H */