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Add MAX6900 detection.

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git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@2347 7894878c-1315-0410-8ee3-d5d059ff63e0
This commit is contained in:
Jean Delvare 2004-03-08 20:49:08 +00:00
parent 3957bad83f
commit 1a5df45d8b
1 changed files with 74 additions and 1 deletions
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75
prog/detect/sensors-detect
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@ -804,7 +804,7 @@ use subs qw(mtp008_detect lm78_detect lm78_isa_detect lm78_alias_detect
ipmi_smic_detect via8231_isa_detect lm85_detect smartbatt_detect
adm1026_detect w83l785ts_detect lm83_detect lm90_detect
saa1064_detect w83l784r_detect mozart_detect max6650_detect
fscher_detect adm1029_detect adm1031_detect);
fscher_detect adm1029_detect adm1031_detect max6900_detect);
# This is a list of all recognized chips.
# Each entry must have the following fields:
@ -1270,6 +1270,12 @@ use subs qw(mtp008_detect lm78_detect lm78_isa_detect lm78_alias_detect
i2c_addrs => [0x38..0x3b],
i2c_detect => sub { saa1064_detect @_ },
},
{
name => "Maxim MAX6900",
driver => "to-be-written",
i2c_addrs => [0x50],
i2c_detect => sub { max6900_detect @_ },
},
{
name => "SMBus 2.0 ARP-Capable Device",
driver => "smbus-arp",
@ -3750,6 +3756,73 @@ sub saa1064_detect
return 4;
}
# $_[0]: A reference to the file descriptor to access this chip.
# We may assume an i2c_set_slave_addr was already done.
# $_[1]: Address
# Returns: undef if not detected, 3 if detected
sub max6900_detect
{
my ($file,$addr) = @_;
my $reg;
# SEC
$reg = i2c_smbus_read_byte_data ($file, 0x81);
return if
($reg & 0xF0) > 0x50 or
($reg & 0x0F) > 9;
# MIN
$reg = i2c_smbus_read_byte_data ($file, 0x83);
return if
($reg & 0xF0) > 0x50 or
($reg & 0x0F) > 9;
# HR
$reg = i2c_smbus_read_byte_data ($file, 0x85);
return if
($reg & 0x40) != 0x00 or
($reg & 0x0F) > 9;
# DATE
$reg = i2c_smbus_read_byte_data ($file, 0x87);
return if
$reg == 0x00 or
($reg & 0xF0) > 0x30 or
($reg & 0x0F) > 9;
# MONTH
$reg = i2c_smbus_read_byte_data ($file, 0x89);
return if
$reg == 0x00 or
($reg & 0xF0) > 0x10 or
($reg & 0x0F) > 9;
# DAY
$reg = i2c_smbus_read_byte_data ($file, 0x8B);
return if
$reg == 0 or
$reg > 7;
# YEAR
$reg = i2c_smbus_read_byte_data ($file, 0x8D);
return if
($reg & 0xF0) > 0x90 or
($reg & 0x0F) > 9;
# CONTROL
$reg = i2c_smbus_read_byte_data ($file, 0x8F);
return if
($reg & 0x7F) != 0x00;
# CENTURY
$reg = i2c_smbus_read_byte_data ($file, 0x93);
return if
($reg & 0xF0) > 0x90 or
($reg & 0x0F) > 9;
return 3;
}
# $_[0]: A reference to the file descriptor to access this chip.
# We may assume an i2c_set_slave_addr was already done.
# $_[1]: Address