2 * Copyright (c) 2005 Hans Petter Selasky
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 #ifndef _ACPI_SMBUS_H_
30 #define _ACPI_SMBUS_H_
33 * System Management Bus register offsets
37 #define SMBUS_STS_MASK 0x1f
40 #define SMBUS_DATA 4 /* 32 bytes */
42 #define SMBUS_ALRM_ADDR 37
43 #define SMBUS_ALRM_DATA 38 /* 2 bytes */
46 * Smart-Battery commands and definitions
50 #define SMBATT_ADDRESS 0x16
52 /* access: READ WRITE WORD */
53 #define SMBATT_CMD_MANUFACTURER_ACCESS 0
56 * access: READ WRITE WORD
57 * unit : mAh (CAPACITY_MODE=0) or 10 mWh (CAPACITY_MODE=1)
58 * range : 0 .. 65535 inclusively
60 #define SMBATT_CMD_REMAINING_CAPACITY_ALARM 0x1
63 * access: READ WRITE WORD
65 * range : 0 .. 65535 inclusively
67 #define SMBATT_CMD_REMAINING_TIME_ALARM 0x2
69 /* access: READ WRITE WORD */
70 #define SMBATT_CMD_BATTERY_MODE 0x3
72 #define SMBATT_BM_INTERNAL_CHARGE_CONTROLLER (1 << 0) /* READ */
73 #define SMBATT_BM_PRIMARY_BATTERY_SUPPORT (1 << 1) /* READ */
74 #define SMBATT_BM_CONDITION_FLAG (1 << 7) /* READ */
75 #define SMBATT_BM_CHARGE_CONTROLLER_ENABLED (1 << 8) /* READ WRITE */
76 #define SMBATT_BM_PRIMARY_BATTERY (1 << 9) /* READ WRITE */
77 #define SMBATT_BM_ALARM_MODE (1 << 13) /* READ WRITE */
78 #define SMBATT_BM_CHARGER_MODE (1 << 14) /* READ WRITE */
79 #define SMBATT_BM_CAPACITY_MODE (1 << 15) /* READ WRITE */
82 * access: READ WRITE WORD
83 * unit : mAh (CAPACITY_MODE=0) or 10 mWh (CAPACITY_MODE=1)
86 #define SMBATT_CMD_AT_RATE 0x4
91 * range : 0 .. 65534, 65535 has special meaning
93 #define SMBATT_CMD_AT_RATE_TIME_TO_FULL 0x5
98 * range : 0 .. 65534, 65535 has special meaning
100 #define SMBATT_CMD_AT_RATE_TIME_TO_EMPTY 0x6
103 * access: READ WORD */
104 #define SMBATT_CMD_AT_RATE_OK 0x7
108 * unit : 0.1 degrees Kelvin
109 * range : 0 .. 6553.5 Kelvin
111 #define SMBATT_CMD_TEMPERATURE 0x8
116 * range : 0 .. 65535 inclusively
118 #define SMBATT_CMD_VOLTAGE 0x9
123 * range : signed WORD
125 #define SMBATT_CMD_CURRENT 0xa
130 * range : signed WORD
132 #define SMBATT_CMD_AVERAGE_CURRENT 0xb
137 * range : 0..100 inclusively
139 #define SMBATT_CMD_MAX_ERROR 0xc
144 * range : 0..100 inclusively
146 #define SMBATT_CMD_RELATIVE_STATE_OF_CHARGE 0xd
151 * range : 0..100 inclusively
153 #define SMBATT_CMD_ABSOLUTE_STATE_OF_CHARGE 0xe
157 * unit : mAh (CAPACITY_MODE=0) or 10 mWh (CAPACITY_MODE=1)
158 * range : 0..65535 inclusively
160 #define SMBATT_CMD_REMAINING_CAPACITY 0xf
164 * unit : mAh (CAPACITY_MODE=0) or 10 mWh (CAPACITY_MODE=1)
165 * range : 0..65535 inclusively
167 #define SMBATT_CMD_FULL_CHARGE_CAPACITY 0x10
172 * range : 0..65534, 65535 is reserved
174 #define SMBATT_CMD_RUN_TIME_TO_EMPTY 0x11
179 * range : 0..65534, 65535 is reserved
181 #define SMBATT_CMD_AVERAGE_TIME_TO_EMPTY 0x12
186 * range : 0..65534, 65535 is reserved
188 #define SMBATT_CMD_AVERAGE_TIME_TO_FULL 0x13
194 #define SMBATT_CMD_CHARGING_CURRENT 0x14
199 * range : 0 .. 65534, 65535 reserved
201 #define SMBATT_CMD_CHARGING_VOLTAGE 0x15
203 /* access: READ WORD */
204 #define SMBATT_CMD_BATTERY_STATUS 0x16
207 #define SMBATT_BS_OVER_CHARGED_ALARM (1 << 15)
208 #define SMBATT_BS_TERMINATE_CHARGE_ALARM (1 << 14)
209 #define SMBATT_BS_RESERVED_2 (1 << 13)
210 #define SMBATT_BS_OVER_TEMP_ALARM (1 << 12)
211 #define SMBATT_BS_TERMINATE_DISCHARGE_ALARM (1 << 11)
212 #define SMBATT_BS_RESERVED_1 (1 << 10)
213 #define SMBATT_BS_REMAINING_CAPACITY_ALARM (1 << 9)
214 #define SMBATT_BS_REMAINING_TIME_ALARM (1 << 8)
217 #define SMBATT_BS_INITIALIZED (1 << 7)
218 #define SMBATT_BS_DISCHARGING (1 << 6)
219 #define SMBATT_BS_FULLY_CHARGED (1 << 5)
220 #define SMBATT_BS_FULLY_DISCHARGED (1 << 4)
223 #define SMBATT_BS_GET_ERROR(x) ((x) & 0xf)
224 #define SMBATT_BS_ERROR_OK 0
225 #define SMBATT_BS_ERROR_BUSY 1
226 #define SMBATT_BS_ERROR_RESERVED_COMMAND 2
227 #define SMBATT_BS_ERROR_UNSUPPORTED_COMMAND 3
228 #define SMBATT_BS_ERROR_ACCESS_DENIED 4
229 #define SMBATT_BS_ERROR_OVER_UNDER_FLOW 5
230 #define SMBATT_BS_ERROR_BADSIZE 6
231 #define SMBATT_BS_ERROR_UNKNOWN 7
236 * range : 0 .. 65534, 65535 reserved
238 #define SMBATT_CMD_CYCLE_COUNT 0x17
242 * unit : mAh (CAPACITY_MODE=0) or 10 mWh (CAPACITY_MODE=1)
243 * range : 0..65535 inclusively
245 #define SMBATT_CMD_DESIGN_CAPACITY 0x18
250 * range : 0..65535 mV
252 #define SMBATT_CMD_DESIGN_VOLTAGE 0x19
254 /* access: READ WORD */
255 #define SMBATT_CMD_SPECIFICATION_INFO 0x1a
257 #define SMBATT_SI_GET_REVISION(x) (((x) >> 0) & 0xf)
258 #define SMBATT_SI_GET_VERSION(x) (((x) >> 4) & 0xf)
259 #define SMBATT_SI_GET_VSCALE(x) (((x) >> 8) & 0xf)
260 #define SMBATT_SI_GET_IPSCALE(x) (((x) >> 12) & 0xf)
262 /* access: READ WORD */
263 #define SMBATT_CMD_MANUFACTURE_DATE 0x1b
265 #define SMBATT_MD_GET_DAY(x) (((x) >> 0) & 0x1f)
266 #define SMBATT_MD_GET_MONTH(x) (((x) >> 5) & 0xf)
267 #define SMBATT_MD_GET_YEAR(x) ((((x) >> 9) & 0x7f) + 1980)
269 /* access: READ WORD */
270 #define SMBATT_CMD_SERIAL_NUMBER 0x1c
272 /* access: READ BLOCK */
273 #define SMBATT_CMD_MANUFACTURER_NAME 0x20
275 /* access: READ BLOCK */
276 #define SMBATT_CMD_DEVICE_NAME 0x21
278 /* access: READ BLOCK */
279 #define SMBATT_CMD_DEVICE_CHEMISTRY 0x22
281 /* access: READ BLOCK */
282 #define SMBATT_CMD_MANUFACTURER_DATA 0x23
284 #endif /* !_ACPI_SMBUS_H_ */