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Initial support for Sony Vaio eeprom

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git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@1600 7894878c-1315-0410-8ee3-d5d059ff63e0
This commit is contained in:
Jean Delvare
2002-11-13 08:57:42 +00:00
parent db0229ce57
commit 8905e3d688
2 changed files with 25 additions and 11 deletions
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3
CHANGES
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@@ -58,7 +58,8 @@ ask CVS about it:
initial support for Sony Vaio eeprom
Program sensors-detect: Add support for MC1066, smart battery;
add ACPI method for IBM system detection;
work with old Perl versions again
work with old Perl versions again;
initial support for Sony Vaio eeprom
Program sensord: (v0.6.2) Add sanity limits to newly-created RRD.
2.6.5 (20020915)

33
prog/detect/sensors-detect
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@@ -972,7 +972,7 @@ use subs qw(mtp008_detect lm78_detect lm78_isa_detect lm78_alias_detect
isa_detect => sub { ite_isa_detect 0, @_ },
} ,
{
name => "Serial EEPROM (SDRAM DIMM)",
name => "Serial EEPROM",
driver => "eeprom",
i2c_addrs => [0x50..0x57],
i2c_detect => sub { eeprom_detect @_ },
@@ -2498,23 +2498,36 @@ sub ite_alias_detect
# $_[0]: A reference to the file descriptor to access this chip.
# We may assume an i2c_set_slave_addr was already done.
# $_[1]: Address
# Returns: undef if not detected, (5) if detected.
# Returns: 8 for a memory eeprom, 6 for a Sony Vaio eeprom,
# 1 or 2 for an unknown eeprom
# Registers used:
# 0x00-0x63: PC-100 Data and Checksum
# 0-63: PC-100 Data and Checksum
# 2-5, 128-131: Sony Vaio Data
sub eeprom_detect
{
my ($file,$addr) = @_;
# Check the checksum for validity (only works for PC-100 DIMMs)
my $checksum = 0;
for (my $i = 0; $i <= 62; $i = $i + 1) {
$checksum = $checksum + i2c_smbus_read_byte_data($file,$i);
}
$checksum=$checksum & 255;
if (i2c_smbus_read_byte_data($file,63) == $checksum) {
return (8);
for (my $i = 0; $i <= 62; $i ++) {
$checksum += i2c_smbus_read_byte_data($file,$i);
}
$checksum &= 255;
return 8
if (i2c_smbus_read_byte_data($file,63) == $checksum);
# Even if checksum test fails, it still may be an eeprom
return (1);
if (i2c_smbus_read_byte_data($file,2) == 0
&& i2c_smbus_read_byte_data($file,3) == 0
&& i2c_smbus_read_byte_data($file,4) == 0
&& i2c_smbus_read_byte_data($file,5) == 0)
{
return 6 # Sony Vaio
if (i2c_smbus_read_byte_data($file,128) == ord 'P'
&& i2c_smbus_read_byte_data($file,129) == ord 'C'
&& i2c_smbus_read_byte_data($file,130) == ord 'G'
&& i2c_smbus_read_byte_data($file,131) == ord '-');
return 2;
}
return 1;
}
# $_[0]: A reference to the file descriptor to access this chip.