got a basic smc example working, including outputting all supported keys

svn path=/trunk/externals/apple/; revision=12658

1 files changed, 107 insertions, 0 deletions

diff --git a/smc.h b/smc.h
new file mode 100644
index 0000000..8c2a227
--- /dev/null
+++ b/smc.h
@@ -0,0 +1,107 @@
+/*
+ * Apple System Management Control (SMC) Tool
+ * Copyright (C) 2006 devnull 
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+#ifndef __SMC_H__
+#define __SMC_H__
+#endif
+
+#define VERSION               "0.01"
+
+#define OP_NONE               0
+#define OP_LIST               1 
+#define OP_READ               2
+#define OP_READ_FAN           3
+#define OP_WRITE              4
+
+#define KERNEL_INDEX_SMC      2
+
+#define SMC_CMD_READ_BYTES    5
+#define SMC_CMD_WRITE_BYTES   6
+#define SMC_CMD_READ_INDEX    8
+#define SMC_CMD_READ_KEYINFO  9
+#define SMC_CMD_READ_PLIMIT   11
+#define SMC_CMD_READ_VERS     12
+
+#define DATATYPE_FPE2         "fpe2"
+#define DATATYPE_UINT8        "ui8 "
+#define DATATYPE_UINT16       "ui16"
+#define DATATYPE_UINT32       "ui32"
+#define DATATYPE_SP78         "sp78"
+
+// key values
+// lots more here:
+//   http://discussions.apple.com/thread.jspa?threadID=734247&tstart=0
+#define SMC_KEY_CPU_TEMP      "TC0D"
+#define SMC_KEY_FAN0_RPM_MIN  "F0Mn"
+#define SMC_KEY_FAN1_RPM_MIN  "F1Mn"
+#define SMC_KEY_FAN0_RPM_CUR  "F0Ac"
+#define SMC_KEY_FAN1_RPM_CUR  "F1Ac"
+
+
+typedef struct {
+    char                  major;
+    char                  minor;
+    char                  build;
+    char                  reserved[1]; 
+    UInt16                release;
+} SMCKeyData_vers_t;
+
+typedef struct {
+    UInt16                version;
+    UInt16                length;
+    UInt32                cpuPLimit;
+    UInt32                gpuPLimit;
+    UInt32                memPLimit;
+} SMCKeyData_pLimitData_t;
+
+typedef struct {
+    UInt32                dataSize;
+    UInt32                dataType;
+    char                  dataAttributes;
+} SMCKeyData_keyInfo_t;
+
+typedef char              SMCBytes_t[32]; 
+
+typedef struct {
+  UInt32                  key; 
+  SMCKeyData_vers_t       vers; 
+  SMCKeyData_pLimitData_t pLimitData;
+  SMCKeyData_keyInfo_t    keyInfo;
+  char                    result;
+  char                    status;
+  char                    data8;
+  UInt32                  data32;
+  SMCBytes_t              bytes;
+} SMCKeyData_t;
+
+typedef char              UInt32Char_t[5];
+
+typedef struct {
+  UInt32Char_t            key;
+  UInt32                  dataSize;
+  UInt32Char_t            dataType;
+  SMCBytes_t              bytes;
+} SMCVal_t;
+
+
+// prototypes
+//double SMCGetTemperature(char *key);
+//kern_return_t SMCSetFanRpm(char *key, int rpm);
+//int SMCGetFanRpm(char *key);
+