1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _LINUX_OLPC_EC_H 3 #define _LINUX_OLPC_EC_H 4 5 #include <linux/bits.h> 6 7 /* XO-1 EC commands */ 8 #define EC_FIRMWARE_REV 0x08 9 #define EC_WRITE_SCI_MASK 0x1b 10 #define EC_WAKE_UP_WLAN 0x24 11 #define EC_WLAN_LEAVE_RESET 0x25 12 #define EC_DCON_POWER_MODE 0x26 13 #define EC_READ_EB_MODE 0x2a 14 #define EC_SET_SCI_INHIBIT 0x32 15 #define EC_SET_SCI_INHIBIT_RELEASE 0x34 16 #define EC_WLAN_ENTER_RESET 0x35 17 #define EC_WRITE_EXT_SCI_MASK 0x38 18 #define EC_SCI_QUERY 0x84 19 #define EC_EXT_SCI_QUERY 0x85 20 21 /* SCI source values */ 22 #define EC_SCI_SRC_GAME BIT(0) 23 #define EC_SCI_SRC_BATTERY BIT(1) 24 #define EC_SCI_SRC_BATSOC BIT(2) 25 #define EC_SCI_SRC_BATERR BIT(3) 26 #define EC_SCI_SRC_EBOOK BIT(4) /* XO-1 only */ 27 #define EC_SCI_SRC_WLAN BIT(5) /* XO-1 only */ 28 #define EC_SCI_SRC_ACPWR BIT(6) 29 #define EC_SCI_SRC_BATCRIT BIT(7) 30 #define EC_SCI_SRC_GPWAKE BIT(8) /* XO-1.5 only */ 31 #define EC_SCI_SRC_ALL GENMASK(8, 0) 32 33 struct platform_device; 34 35 struct olpc_ec_driver { 36 int (*suspend)(struct platform_device *); 37 int (*resume)(struct platform_device *); 38 39 int (*ec_cmd)(u8, u8 *, size_t, u8 *, size_t, void *); 40 41 bool wakeup_available; 42 }; 43 44 #ifdef CONFIG_OLPC_EC 45 46 extern void olpc_ec_driver_register(struct olpc_ec_driver *drv, void *arg); 47 48 extern int olpc_ec_cmd(u8 cmd, u8 *inbuf, size_t inlen, u8 *outbuf, 49 size_t outlen); 50 51 extern void olpc_ec_wakeup_set(u16 value); 52 extern void olpc_ec_wakeup_clear(u16 value); 53 54 extern int olpc_ec_mask_write(u16 bits); 55 extern int olpc_ec_sci_query(u16 *sci_value); 56 57 extern bool olpc_ec_wakeup_available(void); 58 59 asmlinkage int xo1_do_sleep(u8 sleep_state); 60 61 #else 62 63 static inline int olpc_ec_cmd(u8 cmd, u8 *inbuf, size_t inlen, u8 *outbuf, 64 size_t outlen) { return -ENODEV; } 65 66 static inline void olpc_ec_wakeup_set(u16 value) { } 67 static inline void olpc_ec_wakeup_clear(u16 value) { } 68 69 static inline bool olpc_ec_wakeup_available(void) 70 { 71 return false; 72 } 73 74 #endif /* CONFIG_OLPC_EC */ 75 76 #endif /* _LINUX_OLPC_EC_H */ 77
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