ec.h

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#ifndef LUMPY_EC_H
#define LUMPY_EC_H
 
#define EC_MAILBOX_PORT               0xa00 /* Mailbox IO address */
#define EC_SMI_GPI                    1     /* GPIO 1 is KBC3_EXTSMI# */
 
/* Commands */
#define EC_SMI_ENABLE                 0x74
#define EC_SMI_DISABLE                0x75
#define EC_ACPI_ENABLE                0x76 /* Enter ACPI mode */
#define EC_ACPI_DISABLE               0x77 /* Exit ACPI mode */
 
/* Commands with data */
#define EC_AUX_PORT_MODE              0x64 /* PS/2 control mode */
#define  EC_AUX_PORT_MODE_ENABLE       0x00
#define  EC_AUX_PORT_MODE_DISABLE      0x01
#define EC_POWER_BUTTON_MODE          0x63
#define  EC_POWER_BUTTON_MODE_OS       0x00 /* OS control, 8 second override */
#define  EC_POWER_BUTTON_MODE_EC       0x01 /* EC control */
#define EC_BACKLIGHT_OFF              0x67  /* Turn Backlight Off */
#define EC_BACKLIGHT_ON               0x68  /* Turn Backlight On */
#define EC_BATTERY_MODE               0x13
#define  EC_BATTERY_MODE_NORMAL        0x00 /* Normal mode */
#define  EC_BATTERY_MODE_EXTEND        0x01 /* Battery Life Cycle Extension */
#define EC_GET_SMI_CAUSE              0x72  /* Get cause of SMI */
 
/* EC RAM */
#define EC_FAN_SPEED                  0xca
#define  EC_FAN_SPEED_LEVEL_0          0x01 /* Level 0 is fastest */
#define  EC_FAN_SPEED_LEVEL_1          0x02 /* Level 1 is fast */
#define  EC_FAN_SPEED_LEVEL_2          0x04 /* Level 2 is slow */
#define  EC_FAN_SPEED_LEVEL_3          0x08 /* Level 3 is slowest */
#define  EC_FAN_SPEED_LEVEL_4          0x10 /* Level 4 is off */
#define  EC_FAN_SPEED_FLAG_OS          0x80 /* OS control of fan speed */
 
/* EC SMI */
#define EC_LID_CLOSE                  0x9c  /* Lid close event */
#define EC_LID_OPEN                   0x9d  /* Lid open event */
 
extern void lumpy_ec_init(void);
 
#endif // LUMPY_EC_H