Changeset 5833

Timestamp:

04/29/10 18:46:24 (3 years ago)

Author:

khali

Message:

Add detection of SMSC EMC1403 and EMC1404.

Location:

lm-sensors/trunk

Files:

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

lm-sensors/trunk/CHANGES

@@ -6 +6 @@
   sensors-detect: Give udev time to settle before accessing i2c nodes
                   Add support for Intel PCH (SMBus)
+                  Add support for SMSC EMC1403 and EMC1404
 
 3.1.2 (2010-02-02)

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

@@ -1166 +1166 @@
                 i2c_detect => sub { fintek_detect(@_, 7); },
         }, {
+                name => "SMSC EMC1403",
+                driver => "emc1403",
+                i2c_addrs => [0x18, 0x2a, 0x4c, 0x4d],
+                i2c_detect => sub { emc1403_detect(@_, 0); },
+        }, {
+                name => "SMSC EMC1404",
+                driver => "to-be-written", # emc1403
+                i2c_addrs => [0x18, 0x2a, 0x4c, 0x4d],
+                i2c_detect => sub { emc1403_detect(@_, 1); },
+        }, {
                 name => "Smart Battery",
                 driver => "sbs", # ACPI driver, not sure if it always works
@@ -5132 +5142 @@
 
         return 7;
+}
+
+# Chip to detect: 0 = EMC1403, 1 = EMC1404
+# Registers used:
+#   0xfd: Device ID register
+#   0xfe: Vendor ID register
+#   0xff: Revision register
+sub emc1403_detect
+{
+        my ($file, $addr, $chip) = @_;
+        my $dev_id = i2c_smbus_read_byte_data($file, 0xfd);
+        my $man_id = i2c_smbus_read_byte_data($file, 0xfe);
+        my $rev = i2c_smbus_read_byte_data($file, 0xff);
+
+        return unless $man_id == 0x5d;  # SMSC
+
+        if ($chip == 0) {
+                return unless $dev_id == 0x21;
+                return unless $rev == 0x01;
+        } elsif ($chip == 1) {
+                return unless $dev_id == 0x25;
+                return unless $rev == 0x01;
+        }
+
+        return 6;
 }