1 /* SPDX-License-Identifier: GPL-2.0+ */
2 
3 /*
4  * Core definitions for RAVE SP MFD driver.
5  *
6  * Copyright (C) 2017 Zodiac Inflight Innovations
7  */
8 
9 #ifndef _LINUX_RAVE_SP_H_
10 #define _LINUX_RAVE_SP_H_
11 
12 #include <linux/notifier.h>
13 
14 enum rave_sp_command {
15 	RAVE_SP_CMD_GET_FIRMWARE_VERSION	= 0x20,
16 	RAVE_SP_CMD_GET_BOOTLOADER_VERSION	= 0x21,
17 	RAVE_SP_CMD_BOOT_SOURCE			= 0x26,
18 	RAVE_SP_CMD_GET_BOARD_COPPER_REV	= 0x2B,
19 	RAVE_SP_CMD_GET_GPIO_STATE		= 0x2F,
20 
21 	RAVE_SP_CMD_STATUS			= 0xA0,
22 	RAVE_SP_CMD_SW_WDT			= 0xA1,
23 	RAVE_SP_CMD_PET_WDT			= 0xA2,
24 	RAVE_SP_CMD_RMB_EEPROM			= 0xA4,
25 	RAVE_SP_CMD_SET_BACKLIGHT		= 0xA6,
26 	RAVE_SP_CMD_RESET			= 0xA7,
27 	RAVE_SP_CMD_RESET_REASON		= 0xA8,
28 
29 	RAVE_SP_CMD_REQ_COPPER_REV		= 0xB6,
30 	RAVE_SP_CMD_GET_I2C_DEVICE_STATUS	= 0xBA,
31 	RAVE_SP_CMD_GET_SP_SILICON_REV		= 0xB9,
32 	RAVE_SP_CMD_CONTROL_EVENTS		= 0xBB,
33 
34 	RAVE_SP_EVNT_BASE			= 0xE0,
35 };
36 
37 struct rave_sp;
38 
rave_sp_action_pack(u8 event,u8 value)39 static inline unsigned long rave_sp_action_pack(u8 event, u8 value)
40 {
41 	return ((unsigned long)value << 8) | event;
42 }
43 
rave_sp_action_unpack_event(unsigned long action)44 static inline u8 rave_sp_action_unpack_event(unsigned long action)
45 {
46 	return action;
47 }
48 
rave_sp_action_unpack_value(unsigned long action)49 static inline u8 rave_sp_action_unpack_value(unsigned long action)
50 {
51 	return action >> 8;
52 }
53 
54 int rave_sp_exec(struct rave_sp *sp,
55 		 void *__data,  size_t data_size,
56 		 void *reply_data, size_t reply_data_size);
57 
58 struct device;
59 int devm_rave_sp_register_event_notifier(struct device *dev,
60 					 struct notifier_block *nb);
61 
62 #endif /* _LINUX_RAVE_SP_H_ */
63