From 9a8b7ff0d7faec92c7ade73316546bd70714792a Mon Sep 17 00:00:00 2001
From: Tanguy Pruvot <tanguy.pruvot@gmail.com>
Date: Sun, 23 Nov 2014 08:25:27 +0100
Subject: [PATCH] api: add cpu temp/freq (linux)

---
 Makefile.am             |  2 +-
 api.cpp                 | 15 +++++--
 ccminer.vcxproj         |  1 +
 ccminer.vcxproj.filters |  5 ++-
 sysinfos.cpp            | 94 +++++++++++++++++++++++++++++++++++++++++
 5 files changed, 112 insertions(+), 5 deletions(-)
 create mode 100644 sysinfos.cpp

diff --git a/Makefile.am b/Makefile.am
index 6be6482..fb530a6 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -19,7 +19,7 @@ ccminer_SOURCES		= elist.h miner.h compat.h \
 			  compat/sys/time.h compat/getopt/getopt.h \
 			  crc32.c hefty1.c scrypt.c \
 			  ccminer.cpp util.cpp \
-			  api.cpp hashlog.cpp stats.cpp cuda.cpp \
+			  api.cpp hashlog.cpp stats.cpp sysinfos.cpp cuda.cpp \
 			  heavy/heavy.cu \
 			  heavy/cuda_blake512.cu heavy/cuda_blake512.h \
 			  heavy/cuda_combine.cu heavy/cuda_combine.h \
diff --git a/api.cpp b/api.cpp
index 482fcc4..28df514 100644
--- a/api.cpp
+++ b/api.cpp
@@ -108,6 +108,10 @@ extern uint32_t accepted_count;
 extern uint32_t rejected_count;
 extern int device_map[8];
 extern char *device_name[8];
+extern int num_cpus;
+
+extern float cpu_temp(int);
+extern uint32_t cpu_clock(int);
 
 /***************************************************************/
 
@@ -246,13 +250,18 @@ static void gpuhwinfos(int gpu_id)
 }
 
 /**
- * To finish
+ * CPU Infos
  */
 static void cpuhwinfos()
 {
 	char buf[256];
+
+	float temp = cpu_temp(0);
+	uint32_t clock = cpu_clock(0);
+
 	memset(buf, 0, sizeof(buf));
-	snprintf(buf, sizeof(buf), "CPU=|");
+	snprintf(buf, sizeof(buf), "CPUS=%d;TEMP=%.1f;FREQ=%d|",
+		num_cpus, temp, clock);
 	strcat(buffer, buf);
 }
 
@@ -277,8 +286,8 @@ static char *gethistory(char *params)
 	struct stats_data data[50];
 	int thrid = params ? atoi(params) : -1;
 	char *p = buffer;
-	*buffer = '\0';
 	int records = stats_get_history(thrid, data, ARRAY_SIZE(data));
+	*buffer = '\0';
 	for (int i = 0; i < records; i++) {
 		time_t ts = data[i].tm_stat;
 		p += sprintf(p, "GPU=%d;H=%u;KHS=%.2f;DIFF=%.6f;"
diff --git a/ccminer.vcxproj b/ccminer.vcxproj
index 3e6fbc5..cbc6dae 100644
--- a/ccminer.vcxproj
+++ b/ccminer.vcxproj
@@ -247,6 +247,7 @@
     <ClCompile Include="stats.cpp" />
     <ClCompile Include="nvml.cpp" />
     <ClCompile Include="api.cpp" />
+    <ClCompile Include="sysinfos.cpp" />
     <ClCompile Include="crc32.c" />
     <ClCompile Include="hefty1.c" />
     <ClCompile Include="myriadgroestl.cpp" />
diff --git a/ccminer.vcxproj.filters b/ccminer.vcxproj.filters
index 75e2bee..a50b1fa 100644
--- a/ccminer.vcxproj.filters
+++ b/ccminer.vcxproj.filters
@@ -201,6 +201,9 @@
     <ClCompile Include="nvml.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="sysinfos.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
     <ClCompile Include="compat\jansson\memory.c">
       <Filter>Source Files\jansson</Filter>
     </ClCompile>
@@ -536,4 +539,4 @@
       <Filter>Source Files\CUDA\x11</Filter>
     </CudaCompile>
   </ItemGroup>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/sysinfos.cpp b/sysinfos.cpp
new file mode 100644
index 0000000..c41429d
--- /dev/null
+++ b/sysinfos.cpp
@@ -0,0 +1,94 @@
+/**
+ * Unit to read cpu informations
+ *
+ * TODO: WMI implementation for windows
+ *
+ * tpruvot 2014
+ */
+
+#include <stdio.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "miner.h"
+
+#ifndef WIN32
+
+#define HWMON_PATH \
+ "/sys/class/hwmon/hwmon1/device/temp1_input"
+#define HWMON_ALT \
+ "/sys/class/hwmon/hwmon0/temp1_input"
+
+static float linux_cputemp(int core)
+{
+	float tc = 0.0;
+	FILE *fd = fopen(HWMON_PATH, "r");
+	uint32_t val = 0;
+
+	if (!fd)
+		fd = fopen(HWMON_ALT, "r");
+
+	if (!fd)
+		return tc;
+
+	if (fscanf(fd, "%d", &val))
+		tc = val / 1000.0;
+
+	fclose(fd);
+	return tc;
+}
+
+#define CPUFREQ_PATH \
+ "/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_cur_freq"
+static uint32_t linux_cpufreq(int core)
+{
+	FILE *fd = fopen(CPUFREQ_PATH, "r");
+	uint32_t freq = 0;
+
+	if (!fd)
+		return freq;
+
+	if (!fscanf(fd, "%d", &freq))
+		return freq;
+
+	return freq;
+}
+
+#else /* WIN32 */
+
+static float win32_cputemp(int core)
+{
+	// todo
+	return 0.0;
+}
+
+#endif /* !WIN32 */
+
+
+/* exports */
+
+
+float cpu_temp(int core)
+{
+#ifdef WIN32
+	return win32_cputemp(core);
+#else
+	return linux_cputemp(core);
+#endif
+}
+
+uint32_t cpu_clock(int core)
+{
+#ifdef WIN32
+	return 0;
+#else
+	return linux_cpufreq(core);
+#endif
+}
+
+int cpu_fanpercent()
+{
+	return 0;
+}
+