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Introducing module parameter scanning in sensors.c

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It is untested as of yet; but it compiled without problem. Next step: add
support to the chip modules.


git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@324 7894878c-1315-0410-8ee3-d5d059ff63e0
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Frodo Looijaard committed 1999-03-18 15:32:20 +00:00
1 parent 96ac13566f
commit 7e8c43e6b6
3 files changed
+216 -2
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kernel/include/sensors.h
+91
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@@ -80,6 +80,97 @@ extern int sensors_register_entry(struct i2c_client *client,
const char *prefix, ctl_table *ctl_template);
extern void sensors_deregister_entry(int id);
/* A structure containing detect information.
Force variables overrule all other variables; they force a detection on
that place. If a specific chip is given, the module blindly assumes this
chip type is present; if a general force (kind == 0) is given, the module
will still try to figure out what type of chip is present. This is useful
if for some reasons the detect for SMBus or ISA address space filled
fails.
probe: insmod parameter. Initialize this list with SENSORS_I2C_END values.
A list of pairs. The first value is a bus number (SENSORS_ISA_BUS for
the ISA bus, -1 for any I2C bus), the second is the address.
kind: The kind of chip. 0 equals any chip.
*/
struct sensors_force_data {
unsigned short *force;
unsigned short kind;
};
/* A structure containing the detect information.
normal_i2c: filled in by the module writer. Terminated by SENSORS_I2C_END.
A list of I2C addresses which should normally be examined.
normal_i2c_range: filled in by the module writer. Terminated by
SENSORS_I2C_END
A list of pairs of I2C addresses, each pair being an inclusive range of
addresses which should normally be examined.
normal_isa: filled in by the module writer. Terminated by SENSORS_ISA_END.
A list of ISA addresses which should normally be examined.
normal_isa_range: filled in by the module writer. Terminated by
SENSORS_ISA_END
A list of triples. The first two elements are ISA addresses, being an
range of addresses which should normally be examined. The third is the
modulo parameter: only addresses which are 0 module this value relative
to the first address of the range are actually considered.
probe: insmod parameter. Initialize this list with SENSORS_I2C_END values.
A list of pairs. The first value is a bus number (SENSORS_ISA_BUS for
the ISA bus, -1 for any I2C bus), the second is the address. These
addresses are also probed, as if they were in the 'normal' list.
probe_range: insmod parameter. Initialize this list with SENSORS_I2C_END
values.
A list of triples. The first value is a bus number (SENSORS_ISA_BUS for
the ISA bus, -1 for any I2C bus), the second and third are addresses.
These form an inclusive range of addresses that are also probed, as
if they were in the 'normal' list.
ignore: insmod parameter. Initialize this list with SENSORS_I2C_END values.
A list of pairs. The first value is a bus number (SENSORS_ISA_BUS for
the ISA bus, -1 for any I2C bus), the second is the I2C address. These
addresses are never probed. This parameter overrules 'normal' and
'probe', but not the 'force' lists.
ignore_range: insmod parameter. Initialize this list with SENSORS_I2C_END
values.
A list of triples. The first value is a bus number (SENSORS_ISA_BUS for
the ISA bus, -1 for any I2C bus), the second and third are addresses.
These form an inclusive range of I2C addresses that are never probed.
This parameter overrules 'normal' and 'probe', but not the 'force' lists.
force_data: insmod parameters. A list, ending with an element of which
the force field is NULL.
*/
struct sensors_address_data {
unsigned short *normal_i2c;
unsigned short *normal_i2c_range;
unsigned int *normal_isa;
unsigned int *normal_isa_range;
unsigned short *probe;
unsigned short *probe_range;
unsigned short *ignore;
unsigned short *ignore_range;
struct sensors_force_data *forces;
};
/* Internal numbers to terminate lists */
#define SENSORS_I2C_END 0xfffe
#define SENSORS_ISA_END 0xfffefffe
/* The numbers to use to set an ISA or I2C bus address */
#define SENSORS_ISA_BUS 9191
#define SENSORS_ANY_I2C_BUS 0xffff
/* The length of the option lists */
#define SENSORS_MAX_OPTS 48
typedef void sensors_found_addr_proc (struct i2c_adapter *adapter,
int addr, int kind);
/* Detect function. It itterates over all possible addresses itself. For
SMBus addresses, it will only call found_proc if some client is connected
to the SMBus (unless a 'force' matched); for ISA detections, this is not
done. */
extern void sensors_detect(struct i2c_adapter *adapter,
struct sensors_address_data *address_data,
sensors_found_addr_proc *found_proc);
#endif /* def __KERNEL__ */