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6f52b16c | 1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
607ca46e DH |
2 | /* |
3 | * Definitions for talking to the PMU. The PMU is a microcontroller | |
4 | * which controls battery charging and system power on PowerBook 3400 | |
5 | * and 2400 models as well as the RTC and various other things. | |
6 | * | |
7 | * Copyright (C) 1998 Paul Mackerras. | |
8 | */ | |
9 | ||
10 | #ifndef _UAPI_LINUX_PMU_H | |
11 | #define _UAPI_LINUX_PMU_H | |
12 | ||
13 | #define PMU_DRIVER_VERSION 2 | |
14 | ||
15 | /* | |
16 | * PMU commands | |
17 | */ | |
18 | #define PMU_POWER_CTRL0 0x10 /* control power of some devices */ | |
19 | #define PMU_POWER_CTRL 0x11 /* control power of some devices */ | |
20 | #define PMU_ADB_CMD 0x20 /* send ADB packet */ | |
21 | #define PMU_ADB_POLL_OFF 0x21 /* disable ADB auto-poll */ | |
22 | #define PMU_WRITE_NVRAM 0x33 /* write non-volatile RAM */ | |
23 | #define PMU_READ_NVRAM 0x3b /* read non-volatile RAM */ | |
24 | #define PMU_SET_RTC 0x30 /* set real-time clock */ | |
25 | #define PMU_READ_RTC 0x38 /* read real-time clock */ | |
26 | #define PMU_SET_VOLBUTTON 0x40 /* set volume up/down position */ | |
27 | #define PMU_BACKLIGHT_BRIGHT 0x41 /* set backlight brightness */ | |
28 | #define PMU_GET_VOLBUTTON 0x48 /* get volume up/down position */ | |
29 | #define PMU_PCEJECT 0x4c /* eject PC-card from slot */ | |
30 | #define PMU_BATTERY_STATE 0x6b /* report battery state etc. */ | |
31 | #define PMU_SMART_BATTERY_STATE 0x6f /* report battery state (new way) */ | |
32 | #define PMU_SET_INTR_MASK 0x70 /* set PMU interrupt mask */ | |
33 | #define PMU_INT_ACK 0x78 /* read interrupt bits */ | |
34 | #define PMU_SHUTDOWN 0x7e /* turn power off */ | |
35 | #define PMU_CPU_SPEED 0x7d /* control CPU speed on some models */ | |
36 | #define PMU_SLEEP 0x7f /* put CPU to sleep */ | |
37 | #define PMU_POWER_EVENTS 0x8f /* Send power-event commands to PMU */ | |
38 | #define PMU_I2C_CMD 0x9a /* I2C operations */ | |
39 | #define PMU_RESET 0xd0 /* reset CPU */ | |
40 | #define PMU_GET_BRIGHTBUTTON 0xd9 /* report brightness up/down pos */ | |
41 | #define PMU_GET_COVER 0xdc /* report cover open/closed */ | |
42 | #define PMU_SYSTEM_READY 0xdf /* tell PMU we are awake */ | |
43 | #define PMU_GET_VERSION 0xea /* read the PMU version */ | |
44 | ||
45 | /* Bits to use with the PMU_POWER_CTRL0 command */ | |
46 | #define PMU_POW0_ON 0x80 /* OR this to power ON the device */ | |
47 | #define PMU_POW0_OFF 0x00 /* leave bit 7 to 0 to power it OFF */ | |
48 | #define PMU_POW0_HARD_DRIVE 0x04 /* Hard drive power (on wallstreet/lombard ?) */ | |
49 | ||
50 | /* Bits to use with the PMU_POWER_CTRL command */ | |
51 | #define PMU_POW_ON 0x80 /* OR this to power ON the device */ | |
52 | #define PMU_POW_OFF 0x00 /* leave bit 7 to 0 to power it OFF */ | |
53 | #define PMU_POW_BACKLIGHT 0x01 /* backlight power */ | |
54 | #define PMU_POW_CHARGER 0x02 /* battery charger power */ | |
55 | #define PMU_POW_IRLED 0x04 /* IR led power (on wallstreet) */ | |
56 | #define PMU_POW_MEDIABAY 0x08 /* media bay power (wallstreet/lombard ?) */ | |
57 | ||
58 | /* Bits in PMU interrupt and interrupt mask bytes */ | |
59 | #define PMU_INT_PCEJECT 0x04 /* PC-card eject buttons */ | |
60 | #define PMU_INT_SNDBRT 0x08 /* sound/brightness up/down buttons */ | |
61 | #define PMU_INT_ADB 0x10 /* ADB autopoll or reply data */ | |
62 | #define PMU_INT_BATTERY 0x20 /* Battery state change */ | |
63 | #define PMU_INT_ENVIRONMENT 0x40 /* Environment interrupts */ | |
64 | #define PMU_INT_TICK 0x80 /* 1-second tick interrupt */ | |
65 | ||
66 | /* Other bits in PMU interrupt valid when PMU_INT_ADB is set */ | |
67 | #define PMU_INT_ADB_AUTO 0x04 /* ADB autopoll, when PMU_INT_ADB */ | |
68 | #define PMU_INT_WAITING_CHARGER 0x01 /* ??? */ | |
69 | #define PMU_INT_AUTO_SRQ_POLL 0x02 /* ??? */ | |
70 | ||
71 | /* Bits in the environement message (either obtained via PMU_GET_COVER, | |
72 | * or via PMU_INT_ENVIRONMENT on core99 */ | |
73 | #define PMU_ENV_LID_CLOSED 0x01 /* The lid is closed */ | |
74 | ||
75 | /* I2C related definitions */ | |
76 | #define PMU_I2C_MODE_SIMPLE 0 | |
77 | #define PMU_I2C_MODE_STDSUB 1 | |
78 | #define PMU_I2C_MODE_COMBINED 2 | |
79 | ||
80 | #define PMU_I2C_BUS_STATUS 0 | |
81 | #define PMU_I2C_BUS_SYSCLK 1 | |
82 | #define PMU_I2C_BUS_POWER 2 | |
83 | ||
84 | #define PMU_I2C_STATUS_OK 0 | |
85 | #define PMU_I2C_STATUS_DATAREAD 1 | |
86 | #define PMU_I2C_STATUS_BUSY 0xfe | |
87 | ||
88 | ||
89 | /* Kind of PMU (model) */ | |
90 | enum { | |
91 | PMU_UNKNOWN, | |
92 | PMU_OHARE_BASED, /* 2400, 3400, 3500 (old G3 powerbook) */ | |
93 | PMU_HEATHROW_BASED, /* PowerBook G3 series */ | |
94 | PMU_PADDINGTON_BASED, /* 1999 PowerBook G3 */ | |
95 | PMU_KEYLARGO_BASED, /* Core99 motherboard (PMU99) */ | |
54c99077 | 96 | PMU_68K_V1, /* Unused/deprecated */ |
ebd72227 | 97 | PMU_68K_V2, /* Unused/deprecated */ |
607ca46e DH |
98 | }; |
99 | ||
100 | /* PMU PMU_POWER_EVENTS commands */ | |
101 | enum { | |
102 | PMU_PWR_GET_POWERUP_EVENTS = 0x00, | |
103 | PMU_PWR_SET_POWERUP_EVENTS = 0x01, | |
104 | PMU_PWR_CLR_POWERUP_EVENTS = 0x02, | |
105 | PMU_PWR_GET_WAKEUP_EVENTS = 0x03, | |
106 | PMU_PWR_SET_WAKEUP_EVENTS = 0x04, | |
107 | PMU_PWR_CLR_WAKEUP_EVENTS = 0x05, | |
108 | }; | |
109 | ||
110 | /* Power events wakeup bits */ | |
111 | enum { | |
112 | PMU_PWR_WAKEUP_KEY = 0x01, /* Wake on key press */ | |
113 | PMU_PWR_WAKEUP_AC_INSERT = 0x02, /* Wake on AC adapter plug */ | |
114 | PMU_PWR_WAKEUP_AC_CHANGE = 0x04, | |
115 | PMU_PWR_WAKEUP_LID_OPEN = 0x08, | |
116 | PMU_PWR_WAKEUP_RING = 0x10, | |
117 | }; | |
118 | ||
119 | /* | |
120 | * Ioctl commands for the /dev/pmu device | |
121 | */ | |
122 | #include <linux/ioctl.h> | |
123 | ||
124 | /* no param */ | |
125 | #define PMU_IOC_SLEEP _IO('B', 0) | |
126 | /* out param: u32* backlight value: 0 to 15 */ | |
127 | #define PMU_IOC_GET_BACKLIGHT _IOR('B', 1, size_t) | |
128 | /* in param: u32 backlight value: 0 to 15 */ | |
129 | #define PMU_IOC_SET_BACKLIGHT _IOW('B', 2, size_t) | |
130 | /* out param: u32* PMU model */ | |
131 | #define PMU_IOC_GET_MODEL _IOR('B', 3, size_t) | |
132 | /* out param: u32* has_adb: 0 or 1 */ | |
133 | #define PMU_IOC_HAS_ADB _IOR('B', 4, size_t) | |
134 | /* out param: u32* can_sleep: 0 or 1 */ | |
135 | #define PMU_IOC_CAN_SLEEP _IOR('B', 5, size_t) | |
136 | /* no param, but historically was _IOR('B', 6, 0), meaning 4 bytes */ | |
137 | #define PMU_IOC_GRAB_BACKLIGHT _IOR('B', 6, size_t) | |
138 | ||
139 | ||
140 | #endif /* _UAPI_LINUX_PMU_H */ |