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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 */ |