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i2c-sensor.h

Last change on this file was 2, checked in by phkim, 11 years ago

1.phkim

revision copy newcon3sk r27

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File size: 12.0 KB

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1	/*
2	i2c-sensor.h - Part of the i2c package
3	was originally sensors.h - Part of lm_sensors, Linux kernel modules
4	for hardware monitoring
5	Copyright (c) 1998, 1999 Frodo Looijaard <frodol@dds.nl>
6
7	This program is free software; you can redistribute it and/or modify
8	it under the terms of the GNU General Public License as published by
9	the Free Software Foundation; either version 2 of the License, or
10	(at your option) any later version.
11
12	This program is distributed in the hope that it will be useful,
13	but WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	GNU General Public License for more details.
16
17	You should have received a copy of the GNU General Public License
18	along with this program; if not, write to the Free Software
19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20	*/
21
22	#ifndef _LINUX_I2C_SENSOR_H
23	#define _LINUX_I2C_SENSOR_H
24
25	/* A structure containing detect information.
26	Force variables overrule all other variables; they force a detection on
27	that place. If a specific chip is given, the module blindly assumes this
28	chip type is present; if a general force (kind == 0) is given, the module
29	will still try to figure out what type of chip is present. This is useful
30	if for some reasons the detect for SMBus or ISA address space filled
31	fails.
32	probe: insmod parameter. Initialize this list with I2C_CLIENT_ISA_END values.
33	A list of pairs. The first value is a bus number (ANY_I2C_ISA_BUS for
34	the ISA bus, -1 for any I2C bus), the second is the address.
35	kind: The kind of chip. 0 equals any chip.
36	*/
37	struct i2c_force_data {
38	unsigned short *force;
39	unsigned short kind;
40	};
41
42	/* A structure containing the detect information.
43	normal_i2c: filled in by the module writer. Terminated by I2C_CLIENT_ISA_END.
44	A list of I2C addresses which should normally be examined.
45	normal_isa: filled in by the module writer. Terminated by SENSORS_ISA_END.
46	A list of ISA addresses which should normally be examined.
47	probe: insmod parameter. Initialize this list with I2C_CLIENT_ISA_END values.
48	A list of pairs. The first value is a bus number (ANY_I2C_ISA_BUS for
49	the ISA bus, -1 for any I2C bus), the second is the address. These
50	addresses are also probed, as if they were in the 'normal' list.
51	ignore: insmod parameter. Initialize this list with I2C_CLIENT_ISA_END values.
52	A list of pairs. The first value is a bus number (ANY_I2C_ISA_BUS for
53	the ISA bus, -1 for any I2C bus), the second is the I2C address. These
54	addresses are never probed. This parameter overrules 'normal' and
55	'probe', but not the 'force' lists.
56	force_data: insmod parameters. A list, ending with an element of which
57	the force field is NULL.
58	*/
59	struct i2c_address_data {
60	unsigned short *normal_i2c;
61	unsigned int *normal_isa;
62	unsigned short *probe;
63	unsigned short *ignore;
64	struct i2c_force_data *forces;
65	};
66
67	#define SENSORS_MODULE_PARM_FORCE(name) \
68	I2C_CLIENT_MODULE_PARM(force_ ## name, \
69	"List of adapter,address pairs which are unquestionably" \
70	" assumed to contain a `" # name "' chip")
71
72
73	/* This defines several insmod variables, and the addr_data structure */
74	#define SENSORS_INSMOD \
75	I2C_CLIENT_MODULE_PARM(probe, \
76	"List of adapter,address pairs to scan additionally"); \
77	I2C_CLIENT_MODULE_PARM(ignore, \
78	"List of adapter,address pairs not to scan"); \
79	static struct i2c_address_data addr_data = { \
80	.normal_i2c = normal_i2c, \
81	.normal_isa = normal_isa, \
82	.probe = probe, \
83	.ignore = ignore, \
84	.forces = forces, \
85	}
86
87	/* The following functions create an enum with the chip names as elements.
88	The first element of the enum is any_chip. These are the only macros
89	a module will want to use. */
90
91	#define SENSORS_INSMOD_0 \
92	enum chips { any_chip }; \
93	I2C_CLIENT_MODULE_PARM(force, \
94	"List of adapter,address pairs to boldly assume " \
95	"to be present"); \
96	static struct i2c_force_data forces[] = {{force,any_chip},{NULL}}; \
97	SENSORS_INSMOD
98
99	#define SENSORS_INSMOD_1(chip1) \
100	enum chips { any_chip, chip1 }; \
101	I2C_CLIENT_MODULE_PARM(force, \
102	"List of adapter,address pairs to boldly assume " \
103	"to be present"); \
104	SENSORS_MODULE_PARM_FORCE(chip1); \
105	static struct i2c_force_data forces[] = {{force,any_chip},\
106	{force_ ## chip1,chip1}, \
107	{NULL}}; \
108	SENSORS_INSMOD
109
110	#define SENSORS_INSMOD_2(chip1,chip2) \
111	enum chips { any_chip, chip1, chip2 }; \
112	I2C_CLIENT_MODULE_PARM(force, \
113	"List of adapter,address pairs to boldly assume " \
114	"to be present"); \
115	SENSORS_MODULE_PARM_FORCE(chip1); \
116	SENSORS_MODULE_PARM_FORCE(chip2); \
117	static struct i2c_force_data forces[] = {{force,any_chip}, \
118	{force_ ## chip1,chip1}, \
119	{force_ ## chip2,chip2}, \
120	{NULL}}; \
121	SENSORS_INSMOD
122
123	#define SENSORS_INSMOD_3(chip1,chip2,chip3) \
124	enum chips { any_chip, chip1, chip2, chip3 }; \
125	I2C_CLIENT_MODULE_PARM(force, \
126	"List of adapter,address pairs to boldly assume " \
127	"to be present"); \
128	SENSORS_MODULE_PARM_FORCE(chip1); \
129	SENSORS_MODULE_PARM_FORCE(chip2); \
130	SENSORS_MODULE_PARM_FORCE(chip3); \
131	static struct i2c_force_data forces[] = {{force,any_chip}, \
132	{force_ ## chip1,chip1}, \
133	{force_ ## chip2,chip2}, \
134	{force_ ## chip3,chip3}, \
135	{NULL}}; \
136	SENSORS_INSMOD
137
138	#define SENSORS_INSMOD_4(chip1,chip2,chip3,chip4) \
139	enum chips { any_chip, chip1, chip2, chip3, chip4 }; \
140	I2C_CLIENT_MODULE_PARM(force, \
141	"List of adapter,address pairs to boldly assume " \
142	"to be present"); \
143	SENSORS_MODULE_PARM_FORCE(chip1); \
144	SENSORS_MODULE_PARM_FORCE(chip2); \
145	SENSORS_MODULE_PARM_FORCE(chip3); \
146	SENSORS_MODULE_PARM_FORCE(chip4); \
147	static struct i2c_force_data forces[] = {{force,any_chip}, \
148	{force_ ## chip1,chip1}, \
149	{force_ ## chip2,chip2}, \
150	{force_ ## chip3,chip3}, \
151	{force_ ## chip4,chip4}, \
152	{NULL}}; \
153	SENSORS_INSMOD
154
155	#define SENSORS_INSMOD_5(chip1,chip2,chip3,chip4,chip5) \
156	enum chips { any_chip, chip1, chip2, chip3, chip4, chip5 }; \
157	I2C_CLIENT_MODULE_PARM(force, \
158	"List of adapter,address pairs to boldly assume " \
159	"to be present"); \
160	SENSORS_MODULE_PARM_FORCE(chip1); \
161	SENSORS_MODULE_PARM_FORCE(chip2); \
162	SENSORS_MODULE_PARM_FORCE(chip3); \
163	SENSORS_MODULE_PARM_FORCE(chip4); \
164	SENSORS_MODULE_PARM_FORCE(chip5); \
165	static struct i2c_force_data forces[] = {{force,any_chip}, \
166	{force_ ## chip1,chip1}, \
167	{force_ ## chip2,chip2}, \
168	{force_ ## chip3,chip3}, \
169	{force_ ## chip4,chip4}, \
170	{force_ ## chip5,chip5}, \
171	{NULL}}; \
172	SENSORS_INSMOD
173
174	#define SENSORS_INSMOD_6(chip1,chip2,chip3,chip4,chip5,chip6) \
175	enum chips { any_chip, chip1, chip2, chip3, chip4, chip5, chip6 }; \
176	I2C_CLIENT_MODULE_PARM(force, \
177	"List of adapter,address pairs to boldly assume " \
178	"to be present"); \
179	SENSORS_MODULE_PARM_FORCE(chip1); \
180	SENSORS_MODULE_PARM_FORCE(chip2); \
181	SENSORS_MODULE_PARM_FORCE(chip3); \
182	SENSORS_MODULE_PARM_FORCE(chip4); \
183	SENSORS_MODULE_PARM_FORCE(chip5); \
184	SENSORS_MODULE_PARM_FORCE(chip6); \
185	static struct i2c_force_data forces[] = {{force,any_chip}, \
186	{force_ ## chip1,chip1}, \
187	{force_ ## chip2,chip2}, \
188	{force_ ## chip3,chip3}, \
189	{force_ ## chip4,chip4}, \
190	{force_ ## chip5,chip5}, \
191	{force_ ## chip6,chip6}, \
192	{NULL}}; \
193	SENSORS_INSMOD
194
195	#define SENSORS_INSMOD_7(chip1,chip2,chip3,chip4,chip5,chip6,chip7) \
196	enum chips { any_chip, chip1, chip2, chip3, chip4, chip5, chip6, chip7 }; \
197	I2C_CLIENT_MODULE_PARM(force, \
198	"List of adapter,address pairs to boldly assume " \
199	"to be present"); \
200	SENSORS_MODULE_PARM_FORCE(chip1); \
201	SENSORS_MODULE_PARM_FORCE(chip2); \
202	SENSORS_MODULE_PARM_FORCE(chip3); \
203	SENSORS_MODULE_PARM_FORCE(chip4); \
204	SENSORS_MODULE_PARM_FORCE(chip5); \
205	SENSORS_MODULE_PARM_FORCE(chip6); \
206	SENSORS_MODULE_PARM_FORCE(chip7); \
207	static struct i2c_force_data forces[] = {{force,any_chip}, \
208	{force_ ## chip1,chip1}, \
209	{force_ ## chip2,chip2}, \
210	{force_ ## chip3,chip3}, \
211	{force_ ## chip4,chip4}, \
212	{force_ ## chip5,chip5}, \
213	{force_ ## chip6,chip6}, \
214	{force_ ## chip7,chip7}, \
215	{NULL}}; \
216	SENSORS_INSMOD
217
218	#define SENSORS_INSMOD_8(chip1,chip2,chip3,chip4,chip5,chip6,chip7,chip8) \
219	enum chips { any_chip, chip1, chip2, chip3, chip4, chip5, chip6, chip7, chip8 }; \
220	I2C_CLIENT_MODULE_PARM(force, \
221	"List of adapter,address pairs to boldly assume " \
222	"to be present"); \
223	SENSORS_MODULE_PARM_FORCE(chip1); \
224	SENSORS_MODULE_PARM_FORCE(chip2); \
225	SENSORS_MODULE_PARM_FORCE(chip3); \
226	SENSORS_MODULE_PARM_FORCE(chip4); \
227	SENSORS_MODULE_PARM_FORCE(chip5); \
228	SENSORS_MODULE_PARM_FORCE(chip6); \
229	SENSORS_MODULE_PARM_FORCE(chip7); \
230	SENSORS_MODULE_PARM_FORCE(chip8); \
231	static struct i2c_force_data forces[] = {{force,any_chip}, \
232	{force_ ## chip1,chip1}, \
233	{force_ ## chip2,chip2}, \
234	{force_ ## chip3,chip3}, \
235	{force_ ## chip4,chip4}, \
236	{force_ ## chip5,chip5}, \
237	{force_ ## chip6,chip6}, \
238	{force_ ## chip7,chip7}, \
239	{force_ ## chip8,chip8}, \
240	{NULL}}; \
241	SENSORS_INSMOD
242
243	/* Detect function. It iterates over all possible addresses itself. For
244	SMBus addresses, it will only call found_proc if some client is connected
245	to the SMBus (unless a 'force' matched); for ISA detections, this is not
246	done. */
247	extern int i2c_detect(struct i2c_adapter *adapter,
248	struct i2c_address_data *address_data,
249	int (found_proc) (struct i2c_adapter , int, int));
250
251
252	/* This macro is used to scale user-input to sensible values in almost all
253	chip drivers. */
254	static inline int SENSORS_LIMIT(long value, long low, long high)
255	{
256	if (value < low)
257	return low;
258	else if (value > high)
259	return high;
260	else
261	return value;
262	}
263	#endif /* def _LINUX_I2C_SENSOR_H */

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source: svn/branches/kctv/newcon3bcm2_21bu/toolchain/mips-linux-uclibc/include/linux/i2c-sensor.h

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