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Enhance MAX1617, LM84 and LM75 detection in order to reduce

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misdetections.


git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@2015 7894878c-1315-0410-8ee3-d5d059ff63e0
This commit is contained in:
Jean Delvare
2003-10-11 13:35:01 +00:00
parent b1986134c3
commit 8e802a7085
1 changed files with 15 additions and 14 deletions
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29
prog/detect/sensors-detect
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@@ -2449,11 +2449,6 @@ sub lm78_alias_detect
# 4 means that the LM75 was found in a probable state (temperatures
# make sense);
# 3 means that the configuration register passes the test;
# 2 means that the configuration register test failed, so the chipset
# is unlikely to be a LM75;
# 1 means that the chip contains only zeroes, so it's unlikely to be
# a LM75 (we could even consider returning no confidence value
# at all). *TODO*
# Registers used:
# 0x01: Temperature
# 0x01: Configuration
@@ -2482,14 +2477,17 @@ sub lm75_detect
# Default state as seen on the Asus TX97-E
return 5
if $conf == 0 and ($hyst&0x80ff) == 0x002d and ($os&0x80ff) == 0x0034;
# All bytes have the same value, obviously a misdetection.
return
if (($conf<<8)|$conf) == $cur and $cur == $hyst && $cur == $os;
# Unused bits in conf register
return
if ($conf&0xe0) != 0;
# Most probable value ranges
return 4
if ($conf&0xe0) == 0 and (($cur&0x00ff) <= 125 || ($cur&0x00ff) >= 201)
if (($cur&0x00ff) <= 125 || ($cur&0x00ff) >= 201)
and ($hyst&0x00ff) <= 125 and ($os&0x00ff) <= 125 and $hyst<$os;
# Unused bits in conf register
return 3
if ($conf&0xe0) == 0;
return 2;
return 3;
}
# $_[0]: A reference to the file descriptor to access this chip.
@@ -2961,7 +2959,7 @@ sub adm1024_detect
# $_[1]: A reference to the file descriptor to access this chip.
# We may assume an i2c_set_slave_addr was already done.
# $_[2]: Address
# Returns: undef if not detected, 3 if simply detected, 6 if detected and
# Returns: undef if not detected, 3 if simply detected, 5 if detected and
# manufacturer ID matches, 7 if detected and manufacturer ID and
# revision match
# Registers used:
@@ -2995,8 +2993,8 @@ sub adm1021_detect
# match reasonable expectations
my $misdetect = 0;
# Negative temperatures
$misdetect++ if i2c_smbus_read_byte_data($file,0x00) > 128;
$misdetect++ if i2c_smbus_read_byte_data($file,0x01) > 128;
$misdetect++ if ((my $lte=i2c_smbus_read_byte_data($file,0x00)) > 128);
$misdetect++ if ((my $rte=i2c_smbus_read_byte_data($file,0x01)) > 128);
# Negative high limits
$misdetect++ if ((my $lhi=i2c_smbus_read_byte_data($file,0x05)) >= 128);
$misdetect++ if ((my $rhi=i2c_smbus_read_byte_data($file,0x07)) >= 128);
@@ -3010,10 +3008,13 @@ sub adm1021_detect
$misdetect++ if $llo > $lhi;
$misdetect++ if $rlo > $rhi;
return if $misdetect >= 4;
# Also return if all six bytes have the same value
return if $lte == $rte and $lte == $lhi and $lte == $rhi
and $lte == $llo and $lte == $rlo;
}
return 3 if $chip == 2;
return 7 if $chip <= 3;
return 6;
return 5;
}
# $_[0]: Address