Changeset 4314

Timestamp:

02/04/07 19:23:12 (6 years ago)

Author:

ruik

Message:

Add detection of MAX1668, MAX1805, MAX1989 - original code by ticket#2125

Location:

lm-sensors/trunk

Files:

• CHANGES (modified) (1 diff)
• prog/detect/sensors-detect (modified) (2 diffs)

lm-sensors/trunk/CHANGES

@@ -7 +7 @@
                           Add Maxim MAX6655/MAX6656 detection
                            (Olexiy Avramchenko)
+                          Add Maxim MAX1668, MAX1805, MAX1989 detection
                           Add VIA CX700 detection
                           Drop legacy W83627HF ISA detection

lm-sensors/trunk/prog/detect/sensors-detect

@@ -1141 +1141 @@
        i2c_addrs => [0x18..0x1a,0x29..0x2b,0x4c..0x4e],
        i2c_detect => sub { adm1021_detect(3, @_); },
+     },
+     {
+       name => "Maxim MAX1668",
+       driver => "max1668",
+       i2c_addrs => [0x18..0x1a,0x29..0x2b,0x4c..0x4e],
+       i2c_detect => sub { max1668_detect(0, @_); },
+     },
+     {
+       name => "Maxim MAX1805",
+       driver => "max1668",
+       i2c_addrs => [0x18..0x1a,0x29..0x2b,0x4c..0x4e],
+       i2c_detect => sub { max1668_detect(1, @_); },
+     },
+     {
+       name => "Maxim MAX1989",
+       driver => "max1668",
+       i2c_addrs => [0x18..0x1a,0x29..0x2b,0x4c..0x4e],
+       i2c_detect => sub { max1668_detect(2, @_); },
      },
      {
@@ -4475 +4493 @@
 
 # $_[0]: Chip to detect
+#   (0 = MAX1668, 1 = MAX1805, 2 = MAX1989)
+# $_[1]: A reference to the file descriptor to access this chip.
+#        We may assume an i2c_set_slave_addr was already done.
+# $_[2]: Address
+# Returns: undef if not detected, 7 if detected
+# Registers used:
+#   0xfe: Company ID
+#   0xff: Device ID
+sub max1668_detect
+{
+  my ($chip, $file, $addr) = @_;
+  my $man_id = i2c_smbus_read_byte_data($file, 0xfe);
+  my $dev_id = i2c_smbus_read_byte_data($file, 0xff);
+
+  return if $man_id != 0x4d;
+  return if $chip == 0 and $dev_id != 0x03;
+  return if $chip == 1 and $dev_id != 0x05;
+  return if $chip == 2 and $dev_id != 0x0b;
+
+  return 7;
+}
+
+# $_[0]: Chip to detect
 #   (0 = MAX1619)
 # $_[1]: A reference to the file descriptor to access this chip.