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Detect the MAX1619.

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git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@2533 7894878c-1315-0410-8ee3-d5d059ff63e0
This commit is contained in:
Jean Delvare
2004-05-15 11:32:19 +00:00
parent 8de62138b6
commit 135834c625
1 changed files with 37 additions and 1 deletions
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38
prog/detect/sensors-detect
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@@ -819,7 +819,7 @@ use subs qw(mtp008_detect lm78_detect lm78_isa_detect lm78_alias_detect
saa1064_detect w83l784r_detect mozart_detect max6650_detect
fscher_detect adm1029_detect adm1031_detect max6900_detect
m5879_detect pca9540_detect smartbatt_mgr_detect
smartbatt_chgr_detect adt7467_detect lm92_detect);
smartbatt_chgr_detect adt7467_detect lm92_detect max1619_detect);
# This is a list of all recognized chips.
# Each entry must have the following fields:
@@ -1145,6 +1145,12 @@ use subs qw(mtp008_detect lm78_detect lm78_isa_detect lm78_alias_detect
i2c_addrs => [0x18..0x1a,0x29..0x2b,0x4c..0x4e],
i2c_detect => sub { adm1021_detect 7, @_ },
},
{
name => "Maxim MAX1619",
driver => "to-be-written",
i2c_addrs => [0x18..0x1a, 0x29..0x2b, 0x4c..0x4e],
i2c_detect => sub { max1619_detect 0, @_ },
},
{
name => "National Semiconductor LM82",
driver => "to-be-written",
@@ -3567,6 +3573,36 @@ sub adm1021_detect
return 5;
}
# $_[0]: Chip to detect
# (0 = MAX1619)
# $_[1]: A reference to the file descriptor to access this chip.
# We may assume an i2c_set_slave_addr was already done.
# $_[2]: Address
# Returns: undef if not detected, 7 if detected
# Registers used:
# 0xfe: Company ID
# 0xff: Device ID
# 0x02: Status
# 0x03: Configuration
# 0x04: Conversion rate
sub max1619_detect
{
my ($chip, $file, $addr) = @_;
my $man_id = i2c_smbus_read_byte_data($file, 0xfe);
my $dev_id = i2c_smbus_read_byte_data($file, 0xff);
my $conf = i2c_smbus_read_byte_data($file, 0x03);
my $status = i2c_smbus_read_byte_data($file, 0x02);
my $convrate = i2c_smbus_read_byte_data($file, 0x04);
return if $man_id != 0x4D
or $dev_id != 0x04
or ($conf & 0x03)
or ($status & 0x61)
or $convrate >= 8;
return 7;
}
# $_[0]: Address
# Returns: undef if not detected, (9) if detected.
# Note: It is already 99% certain this chip exists if we find the PCI