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Add W83793R/G detection. Original patch from Yuan Mu (Winbond).

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git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@3287 7894878c-1315-0410-8ee3-d5d059ff63e0
This commit is contained in:
Jean Delvare
2006-04-22 08:53:30 +00:00
parent 49a745af33
commit 6eb8c2a9a7
1 changed files with 47 additions and 1 deletions
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48
prog/detect/sensors-detect
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@@ -917,7 +917,8 @@ use subs qw(mtp008_detect lm78_detect lm78_isa_detect lm78_alias_detect
smartbatt_chgr_detect adt7467_detect lm92_detect max1619_detect
lm93_detect lm77_detect lm63_detect pca9556_detect
w83791sd_detect vt1211_i2c_detect vt1211_alias_detect
smsc47m192_detect ite_overclock_detect fintek_detect);
smsc47m192_detect ite_overclock_detect fintek_detect
w83793_detect);
# This is a list of all recognized chips.
# Each entry must have the following fields:
@@ -1075,6 +1076,12 @@ use subs qw(mtp008_detect lm78_detect lm78_isa_detect lm78_alias_detect
i2c_addrs => [0x2c..0x2f],
i2c_detect => sub { w83781d_detect 8, @_},
},
{
name => "Winbond W83793R/G",
driver => "to-be-written",
i2c_addrs => [0x2c..0x2f],
i2c_detect => sub { w83793_detect 0, @_ },
},
{
name => "Winbond W83791SD",
driver => "not-a-sensor",
@@ -3690,6 +3697,45 @@ sub w83781d_detect
push @res, (($reg1 & 0x70) >> 4) + 0x48 unless ($reg1 & 0x80 or $chip == 2);
return @res;
}
# $_[0]: Chip to detect (0 = W83793)
# $_[1]: A reference to the file descriptor to access this chip.
# $_[2]: Address
# Returns: undef if not detected
# 6 if detected and bank different from 0
# (8,addr1,addr2) if detected, band is 0 and LM75 chip emulation
# is enabled
# Registers used:
# 0x0b: Full I2C Address
# 0x0c: I2C addresses of emulated LM75 chips
# 0x00: Vendor ID byte selection, and bank selection(Bank 0,1,2)
# 0x0d: Vendor ID(Bank 0,1,2)
# 0x0e: Device ID(Bank 0,1,2)
sub w83793_detect
{
my ($bank, $reg, @res);
my ($chip, $file, $addr) = @_;
$bank = i2c_smbus_read_byte_data($file, 0x00);
$reg = i2c_smbus_read_byte_data($file, 0x0d);
return unless (($bank & 0x80) == 0x00 and $reg == 0xa3) or
(($bank & 0x80) == 0x80 and $reg == 0x5c);
$reg = i2c_smbus_read_byte_data($file, 0x0e);
return if $chip == 0 and $reg != 0x7b;
# If bank 0 is selected, we can do more checks
return 6 unless ($bank & 0x07) == 0;
$reg = i2c_smbus_read_byte_data($file, 0x0b);
return unless ($reg == ($addr << 1));
$reg = i2c_smbus_read_byte_data($file, 0x0c);
@res = (8);
push @res, ($reg & 0x07) + 0x48 unless $reg & 0x08;
push @res, (($reg & 0x70) >> 4) + 0x48 unless $reg & 0x80;
return @res;
}
# $_[0]: A reference to the file descriptor to access this chip.
# We assume an i2c_set_slave_addr was already done.