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1275 |
phoenix |
/*
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sensors.h - Part of lm_sensors, Linux kernel modules for hardware
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monitoring
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Copyright (c) 1998, 1999 Frodo Looijaard <frodol@dds.nl>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef SENSORS_SENSORS_H
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#define SENSORS_SENSORS_H
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#ifdef __KERNEL__
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/* Next two must be included before sysctl.h can be included, in 2.0 kernels */
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#include <linux/types.h>
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#include <linux/fs.h>
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#include <linux/sysctl.h>
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/* The type of callback functions used in sensors_{proc,sysctl}_real */
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typedef void (*i2c_real_callback) (struct i2c_client * client,
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int operation, int ctl_name,
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int *nrels_mag, long *results);
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/* Values for the operation field in the above function type */
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#define SENSORS_PROC_REAL_INFO 1
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#define SENSORS_PROC_REAL_READ 2
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#define SENSORS_PROC_REAL_WRITE 3
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/* These funcion reads or writes a 'real' value (encoded by the combination
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of an integer and a magnitude, the last is the power of ten the value
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should be divided with) to a /proc/sys directory. To use these functions,
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you must (before registering the ctl_table) set the extra2 field to the
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client, and the extra1 field to a function of the form:
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void func(struct i2c_client *client, int operation, int ctl_name,
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int *nrels_mag, long *results)
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This last function can be called for three values of operation. If
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operation equals SENSORS_PROC_REAL_INFO, the magnitude should be returned
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in nrels_mag. If operation equals SENSORS_PROC_REAL_READ, values should
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be read into results. nrels_mag should return the number of elements
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read; the maximum number is put in it on entry. Finally, if operation
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equals SENSORS_PROC_REAL_WRITE, the values in results should be
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written to the chip. nrels_mag contains on entry the number of elements
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found.
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In all cases, client points to the client we wish to interact with,
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and ctl_name is the SYSCTL id of the file we are accessing. */
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extern int i2c_sysctl_real(ctl_table * table, int *name, int nlen,
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void *oldval, size_t * oldlenp,
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void *newval, size_t newlen,
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void **context);
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extern int i2c_proc_real(ctl_table * ctl, int write, struct file *filp,
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void *buffer, size_t * lenp);
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/* These rather complex functions must be called when you want to add or
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delete an entry in /proc/sys/dev/sensors/chips (not yet implemented). It
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also creates a new directory within /proc/sys/dev/sensors/.
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ctl_template should be a template of the newly created directory. It is
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copied in memory. The extra2 field of each file is set to point to client.
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If any driver wants subdirectories within the newly created directory,
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these functions must be updated! */
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extern int i2c_register_entry(struct i2c_client *client,
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const char *prefix,
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ctl_table * ctl_template,
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struct module *controlling_mod);
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extern void i2c_deregister_entry(int id);
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/* A structure containing detect information.
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Force variables overrule all other variables; they force a detection on
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that place. If a specific chip is given, the module blindly assumes this
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chip type is present; if a general force (kind == 0) is given, the module
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will still try to figure out what type of chip is present. This is useful
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if for some reasons the detect for SMBus or ISA address space filled
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fails.
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probe: insmod parameter. Initialize this list with SENSORS_I2C_END values.
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A list of pairs. The first value is a bus number (SENSORS_ISA_BUS for
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the ISA bus, -1 for any I2C bus), the second is the address.
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kind: The kind of chip. 0 equals any chip.
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*/
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struct i2c_force_data {
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unsigned short *force;
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unsigned short kind;
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};
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/* A structure containing the detect information.
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normal_i2c: filled in by the module writer. Terminated by SENSORS_I2C_END.
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A list of I2C addresses which should normally be examined.
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normal_i2c_range: filled in by the module writer. Terminated by
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SENSORS_I2C_END
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A list of pairs of I2C addresses, each pair being an inclusive range of
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addresses which should normally be examined.
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normal_isa: filled in by the module writer. Terminated by SENSORS_ISA_END.
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A list of ISA addresses which should normally be examined.
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normal_isa_range: filled in by the module writer. Terminated by
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SENSORS_ISA_END
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A list of triples. The first two elements are ISA addresses, being an
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range of addresses which should normally be examined. The third is the
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modulo parameter: only addresses which are 0 module this value relative
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to the first address of the range are actually considered.
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probe: insmod parameter. Initialize this list with SENSORS_I2C_END values.
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A list of pairs. The first value is a bus number (SENSORS_ISA_BUS for
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the ISA bus, -1 for any I2C bus), the second is the address. These
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addresses are also probed, as if they were in the 'normal' list.
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probe_range: insmod parameter. Initialize this list with SENSORS_I2C_END
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values.
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A list of triples. The first value is a bus number (SENSORS_ISA_BUS for
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the ISA bus, -1 for any I2C bus), the second and third are addresses.
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These form an inclusive range of addresses that are also probed, as
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if they were in the 'normal' list.
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ignore: insmod parameter. Initialize this list with SENSORS_I2C_END values.
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A list of pairs. The first value is a bus number (SENSORS_ISA_BUS for
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the ISA bus, -1 for any I2C bus), the second is the I2C address. These
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addresses are never probed. This parameter overrules 'normal' and
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'probe', but not the 'force' lists.
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ignore_range: insmod parameter. Initialize this list with SENSORS_I2C_END
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values.
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A list of triples. The first value is a bus number (SENSORS_ISA_BUS for
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the ISA bus, -1 for any I2C bus), the second and third are addresses.
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These form an inclusive range of I2C addresses that are never probed.
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This parameter overrules 'normal' and 'probe', but not the 'force' lists.
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force_data: insmod parameters. A list, ending with an element of which
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the force field is NULL.
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*/
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struct i2c_address_data {
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unsigned short *normal_i2c;
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unsigned short *normal_i2c_range;
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unsigned int *normal_isa;
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unsigned int *normal_isa_range;
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unsigned short *probe;
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unsigned short *probe_range;
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unsigned short *ignore;
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unsigned short *ignore_range;
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struct i2c_force_data *forces;
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};
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/* Internal numbers to terminate lists */
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#define SENSORS_I2C_END 0xfffe
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#define SENSORS_ISA_END 0xfffefffe
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/* The numbers to use to set an ISA or I2C bus address */
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#define SENSORS_ISA_BUS 9191
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#define SENSORS_ANY_I2C_BUS 0xffff
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/* The length of the option lists */
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#define SENSORS_MAX_OPTS 48
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/* Default fill of many variables */
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#define SENSORS_DEFAULTS {SENSORS_I2C_END, SENSORS_I2C_END, SENSORS_I2C_END, \
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SENSORS_I2C_END, SENSORS_I2C_END, SENSORS_I2C_END, \
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SENSORS_I2C_END, SENSORS_I2C_END, SENSORS_I2C_END, \
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SENSORS_I2C_END, SENSORS_I2C_END, SENSORS_I2C_END, \
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SENSORS_I2C_END, SENSORS_I2C_END, SENSORS_I2C_END, \
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SENSORS_I2C_END, SENSORS_I2C_END, SENSORS_I2C_END, \
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SENSORS_I2C_END, SENSORS_I2C_END, SENSORS_I2C_END, \
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SENSORS_I2C_END, SENSORS_I2C_END, SENSORS_I2C_END, \
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SENSORS_I2C_END, SENSORS_I2C_END, SENSORS_I2C_END, \
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SENSORS_I2C_END, SENSORS_I2C_END, SENSORS_I2C_END, \
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SENSORS_I2C_END, SENSORS_I2C_END, SENSORS_I2C_END, \
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SENSORS_I2C_END, SENSORS_I2C_END, SENSORS_I2C_END, \
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SENSORS_I2C_END, SENSORS_I2C_END, SENSORS_I2C_END, \
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SENSORS_I2C_END, SENSORS_I2C_END, SENSORS_I2C_END, \
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SENSORS_I2C_END, SENSORS_I2C_END, SENSORS_I2C_END, \
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SENSORS_I2C_END, SENSORS_I2C_END, SENSORS_I2C_END}
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/* This is ugly. We need to evaluate SENSORS_MAX_OPTS before it is
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stringified */
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#define SENSORS_MODPARM_AUX1(x) "1-" #x "h"
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#define SENSORS_MODPARM_AUX(x) SENSORS_MODPARM_AUX1(x)
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#define SENSORS_MODPARM SENSORS_MODPARM_AUX(SENSORS_MAX_OPTS)
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/* SENSORS_MODULE_PARM creates a module parameter, and puts it in the
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module header */
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#define SENSORS_MODULE_PARM(var,desc) \
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static unsigned short var[SENSORS_MAX_OPTS] = SENSORS_DEFAULTS; \
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MODULE_PARM(var,SENSORS_MODPARM); \
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MODULE_PARM_DESC(var,desc)
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/* SENSORS_MODULE_PARM creates a 'force_*' module parameter, and puts it in
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the module header */
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#define SENSORS_MODULE_PARM_FORCE(name) \
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SENSORS_MODULE_PARM(force_ ## name, \
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"List of adapter,address pairs which are unquestionably" \
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" assumed to contain a `" # name "' chip")
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/* This defines several insmod variables, and the addr_data structure */
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#define SENSORS_INSMOD \
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SENSORS_MODULE_PARM(probe, \
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"List of adapter,address pairs to scan additionally"); \
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SENSORS_MODULE_PARM(probe_range, \
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"List of adapter,start-addr,end-addr triples to scan " \
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"additionally"); \
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SENSORS_MODULE_PARM(ignore, \
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"List of adapter,address pairs not to scan"); \
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SENSORS_MODULE_PARM(ignore_range, \
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"List of adapter,start-addr,end-addr triples not to " \
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"scan"); \
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static struct i2c_address_data addr_data = \
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{normal_i2c, normal_i2c_range, \
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normal_isa, normal_isa_range, \
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probe, probe_range, \
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ignore, ignore_range, \
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forces}
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/* The following functions create an enum with the chip names as elements.
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The first element of the enum is any_chip. These are the only macros
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a module will want to use. */
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#define SENSORS_INSMOD_0 \
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enum chips { any_chip }; \
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SENSORS_MODULE_PARM(force, \
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"List of adapter,address pairs to boldly assume " \
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"to be present"); \
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static struct i2c_force_data forces[] = {{force,any_chip},{NULL}}; \
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SENSORS_INSMOD
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#define SENSORS_INSMOD_1(chip1) \
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enum chips { any_chip, chip1 }; \
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SENSORS_MODULE_PARM(force, \
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"List of adapter,address pairs to boldly assume " \
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"to be present"); \
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SENSORS_MODULE_PARM_FORCE(chip1); \
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static struct i2c_force_data forces[] = {{force,any_chip},\
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{force_ ## chip1,chip1}, \
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{NULL}}; \
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SENSORS_INSMOD
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| 242 |
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#define SENSORS_INSMOD_2(chip1,chip2) \
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enum chips { any_chip, chip1, chip2 }; \
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SENSORS_MODULE_PARM(force, \
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"List of adapter,address pairs to boldly assume " \
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"to be present"); \
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SENSORS_MODULE_PARM_FORCE(chip1); \
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SENSORS_MODULE_PARM_FORCE(chip2); \
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static struct i2c_force_data forces[] = {{force,any_chip}, \
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{force_ ## chip1,chip1}, \
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{force_ ## chip2,chip2}, \
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{NULL}}; \
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SENSORS_INSMOD
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| 255 |
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#define SENSORS_INSMOD_3(chip1,chip2,chip3) \
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enum chips { any_chip, chip1, chip2, chip3 }; \
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SENSORS_MODULE_PARM(force, \
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"List of adapter,address pairs to boldly assume " \
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"to be present"); \
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SENSORS_MODULE_PARM_FORCE(chip1); \
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SENSORS_MODULE_PARM_FORCE(chip2); \
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SENSORS_MODULE_PARM_FORCE(chip3); \
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static struct i2c_force_data forces[] = {{force,any_chip}, \
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{force_ ## chip1,chip1}, \
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{force_ ## chip2,chip2}, \
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{force_ ## chip3,chip3}, \
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| 267 |
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{NULL}}; \
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SENSORS_INSMOD
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| 270 |
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#define SENSORS_INSMOD_4(chip1,chip2,chip3,chip4) \
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enum chips { any_chip, chip1, chip2, chip3, chip4 }; \
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SENSORS_MODULE_PARM(force, \
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"List of adapter,address pairs to boldly assume " \
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"to be present"); \
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| 275 |
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SENSORS_MODULE_PARM_FORCE(chip1); \
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SENSORS_MODULE_PARM_FORCE(chip2); \
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SENSORS_MODULE_PARM_FORCE(chip3); \
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| 278 |
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SENSORS_MODULE_PARM_FORCE(chip4); \
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| 279 |
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static struct i2c_force_data forces[] = {{force,any_chip}, \
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{force_ ## chip1,chip1}, \
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| 281 |
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{force_ ## chip2,chip2}, \
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| 282 |
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{force_ ## chip3,chip3}, \
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| 283 |
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{force_ ## chip4,chip4}, \
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| 284 |
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{NULL}}; \
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SENSORS_INSMOD
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| 287 |
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#define SENSORS_INSMOD_5(chip1,chip2,chip3,chip4,chip5) \
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enum chips { any_chip, chip1, chip2, chip3, chip4, chip5 }; \
|
| 289 |
|
|
SENSORS_MODULE_PARM(force, \
|
| 290 |
|
|
"List of adapter,address pairs to boldly assume " \
|
| 291 |
|
|
"to be present"); \
|
| 292 |
|
|
SENSORS_MODULE_PARM_FORCE(chip1); \
|
| 293 |
|
|
SENSORS_MODULE_PARM_FORCE(chip2); \
|
| 294 |
|
|
SENSORS_MODULE_PARM_FORCE(chip3); \
|
| 295 |
|
|
SENSORS_MODULE_PARM_FORCE(chip4); \
|
| 296 |
|
|
SENSORS_MODULE_PARM_FORCE(chip5); \
|
| 297 |
|
|
static struct i2c_force_data forces[] = {{force,any_chip}, \
|
| 298 |
|
|
{force_ ## chip1,chip1}, \
|
| 299 |
|
|
{force_ ## chip2,chip2}, \
|
| 300 |
|
|
{force_ ## chip3,chip3}, \
|
| 301 |
|
|
{force_ ## chip4,chip4}, \
|
| 302 |
|
|
{force_ ## chip5,chip5}, \
|
| 303 |
|
|
{NULL}}; \
|
| 304 |
|
|
SENSORS_INSMOD
|
| 305 |
|
|
|
| 306 |
|
|
#define SENSORS_INSMOD_6(chip1,chip2,chip3,chip4,chip5,chip6) \
|
| 307 |
|
|
enum chips { any_chip, chip1, chip2, chip3, chip4, chip5, chip6 }; \
|
| 308 |
|
|
SENSORS_MODULE_PARM(force, \
|
| 309 |
|
|
"List of adapter,address pairs to boldly assume " \
|
| 310 |
|
|
"to be present"); \
|
| 311 |
|
|
SENSORS_MODULE_PARM_FORCE(chip1); \
|
| 312 |
|
|
SENSORS_MODULE_PARM_FORCE(chip2); \
|
| 313 |
|
|
SENSORS_MODULE_PARM_FORCE(chip3); \
|
| 314 |
|
|
SENSORS_MODULE_PARM_FORCE(chip4); \
|
| 315 |
|
|
SENSORS_MODULE_PARM_FORCE(chip5); \
|
| 316 |
|
|
SENSORS_MODULE_PARM_FORCE(chip6); \
|
| 317 |
|
|
static struct i2c_force_data forces[] = {{force,any_chip}, \
|
| 318 |
|
|
{force_ ## chip1,chip1}, \
|
| 319 |
|
|
{force_ ## chip2,chip2}, \
|
| 320 |
|
|
{force_ ## chip3,chip3}, \
|
| 321 |
|
|
{force_ ## chip4,chip4}, \
|
| 322 |
|
|
{force_ ## chip5,chip5}, \
|
| 323 |
|
|
{force_ ## chip6,chip6}, \
|
| 324 |
|
|
{NULL}}; \
|
| 325 |
|
|
SENSORS_INSMOD
|
| 326 |
|
|
|
| 327 |
|
|
#define SENSORS_INSMOD_7(chip1,chip2,chip3,chip4,chip5,chip6,chip7) \
|
| 328 |
|
|
enum chips { any_chip, chip1, chip2, chip3, chip4, chip5, chip6, chip7 }; \
|
| 329 |
|
|
SENSORS_MODULE_PARM(force, \
|
| 330 |
|
|
"List of adapter,address pairs to boldly assume " \
|
| 331 |
|
|
"to be present"); \
|
| 332 |
|
|
SENSORS_MODULE_PARM_FORCE(chip1); \
|
| 333 |
|
|
SENSORS_MODULE_PARM_FORCE(chip2); \
|
| 334 |
|
|
SENSORS_MODULE_PARM_FORCE(chip3); \
|
| 335 |
|
|
SENSORS_MODULE_PARM_FORCE(chip4); \
|
| 336 |
|
|
SENSORS_MODULE_PARM_FORCE(chip5); \
|
| 337 |
|
|
SENSORS_MODULE_PARM_FORCE(chip6); \
|
| 338 |
|
|
SENSORS_MODULE_PARM_FORCE(chip7); \
|
| 339 |
|
|
static struct i2c_force_data forces[] = {{force,any_chip}, \
|
| 340 |
|
|
{force_ ## chip1,chip1}, \
|
| 341 |
|
|
{force_ ## chip2,chip2}, \
|
| 342 |
|
|
{force_ ## chip3,chip3}, \
|
| 343 |
|
|
{force_ ## chip4,chip4}, \
|
| 344 |
|
|
{force_ ## chip5,chip5}, \
|
| 345 |
|
|
{force_ ## chip6,chip6}, \
|
| 346 |
|
|
{force_ ## chip7,chip7}, \
|
| 347 |
|
|
{NULL}}; \
|
| 348 |
|
|
SENSORS_INSMOD
|
| 349 |
|
|
|
| 350 |
|
|
typedef int i2c_found_addr_proc(struct i2c_adapter *adapter,
|
| 351 |
|
|
int addr, unsigned short flags,
|
| 352 |
|
|
int kind);
|
| 353 |
|
|
|
| 354 |
|
|
/* Detect function. It iterates over all possible addresses itself. For
|
| 355 |
|
|
SMBus addresses, it will only call found_proc if some client is connected
|
| 356 |
|
|
to the SMBus (unless a 'force' matched); for ISA detections, this is not
|
| 357 |
|
|
done. */
|
| 358 |
|
|
extern int i2c_detect(struct i2c_adapter *adapter,
|
| 359 |
|
|
struct i2c_address_data *address_data,
|
| 360 |
|
|
i2c_found_addr_proc * found_proc);
|
| 361 |
|
|
|
| 362 |
|
|
|
| 363 |
|
|
/* This macro is used to scale user-input to sensible values in almost all
|
| 364 |
|
|
chip drivers. */
|
| 365 |
|
|
extern inline int SENSORS_LIMIT(long value, long low, long high)
|
| 366 |
|
|
{
|
| 367 |
|
|
if (value < low)
|
| 368 |
|
|
return low;
|
| 369 |
|
|
else if (value > high)
|
| 370 |
|
|
return high;
|
| 371 |
|
|
else
|
| 372 |
|
|
return value;
|
| 373 |
|
|
}
|
| 374 |
|
|
|
| 375 |
|
|
#endif /* def __KERNEL__ */
|
| 376 |
|
|
|
| 377 |
|
|
|
| 378 |
|
|
/* The maximum length of the prefix */
|
| 379 |
|
|
#define SENSORS_PREFIX_MAX 20
|
| 380 |
|
|
|
| 381 |
|
|
/* Sysctl IDs */
|
| 382 |
|
|
#ifdef DEV_HWMON
|
| 383 |
|
|
#define DEV_SENSORS DEV_HWMON
|
| 384 |
|
|
#else /* ndef DEV_HWMOM */
|
| 385 |
|
|
#define DEV_SENSORS 2 /* The id of the lm_sensors directory within the
|
| 386 |
|
|
dev table */
|
| 387 |
|
|
#endif /* def DEV_HWMON */
|
| 388 |
|
|
|
| 389 |
|
|
#define SENSORS_CHIPS 1
|
| 390 |
|
|
struct i2c_chips_data {
|
| 391 |
|
|
int sysctl_id;
|
| 392 |
|
|
char name[SENSORS_PREFIX_MAX + 13];
|
| 393 |
|
|
};
|
| 394 |
|
|
|
| 395 |
|
|
#endif /* def SENSORS_SENSORS_H */
|
| 396 |
|
|
|
