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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_OLPC_EC_H
#define _LINUX_OLPC_EC_H
#include <linux/bits.h>
/* XO-1 EC commands */
#define EC_FIRMWARE_REV 0x08
#define EC_WRITE_SCI_MASK 0x1b
#define EC_WAKE_UP_WLAN 0x24
#define EC_WLAN_LEAVE_RESET 0x25
#define EC_DCON_POWER_MODE 0x26
#define EC_READ_EB_MODE 0x2a
#define EC_SET_SCI_INHIBIT 0x32
#define EC_SET_SCI_INHIBIT_RELEASE 0x34
#define EC_WLAN_ENTER_RESET 0x35
#define EC_WRITE_EXT_SCI_MASK 0x38
#define EC_SCI_QUERY 0x84
#define EC_EXT_SCI_QUERY 0x85
/* SCI source values */
#define EC_SCI_SRC_GAME BIT(0)
#define EC_SCI_SRC_BATTERY BIT(1)
#define EC_SCI_SRC_BATSOC BIT(2)
#define EC_SCI_SRC_BATERR BIT(3)
#define EC_SCI_SRC_EBOOK BIT(4) /* XO-1 only */
#define EC_SCI_SRC_WLAN BIT(5) /* XO-1 only */
#define EC_SCI_SRC_ACPWR BIT(6)
#define EC_SCI_SRC_BATCRIT BIT(7)
#define EC_SCI_SRC_GPWAKE BIT(8) /* XO-1.5 only */
#define EC_SCI_SRC_ALL GENMASK(8, 0)
struct platform_device;
struct olpc_ec_driver {
int (*suspend)(struct platform_device *);
int (*resume)(struct platform_device *);
int (*ec_cmd)(u8, u8 *, size_t, u8 *, size_t, void *);
bool wakeup_available;
};
#ifdef CONFIG_OLPC_EC
extern void olpc_ec_driver_register(struct olpc_ec_driver *drv, void *arg);
extern int olpc_ec_cmd(u8 cmd, u8 *inbuf, size_t inlen, u8 *outbuf,
size_t outlen);
extern void olpc_ec_wakeup_set(u16 value);
extern void olpc_ec_wakeup_clear(u16 value);
extern int olpc_ec_mask_write(u16 bits);
extern int olpc_ec_sci_query(u16 *sci_value);
extern bool olpc_ec_wakeup_available(void);
#else
static inline int olpc_ec_cmd(u8 cmd, u8 *inbuf, size_t inlen, u8 *outbuf,
size_t outlen) { return -ENODEV; }
static inline void olpc_ec_wakeup_set(u16 value) { }
static inline void olpc_ec_wakeup_clear(u16 value) { }
static inline bool olpc_ec_wakeup_available(void)
{
return false;
}
#endif /* CONFIG_OLPC_EC */
#endif /* _LINUX_OLPC_EC_H */