Initial importHEADmaster

6 files changed, 224 insertions, 0 deletions

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..4526eed
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,14 @@
+/aclocal.m4
+/autom4te.cache/
+/compile
+/configure
+/depcomp
+/install-sh
+/Makefile.in
+/missing
+/.deps/
+/Makefile
+/config.log
+/config.status
+/mfi-agent
+*.o
diff --git a/Makefile.am b/Makefile.am
new file mode 100644
index 0000000..a7f3405
--- /dev/null
+++ b/Makefile.am
@@ -0,0 +1,13 @@
+bin_PROGRAMS = mfi-agent
+
+mfi_agent_SOURCES = \
+        main.c
+
+mfi_agent_CFLAGS = \
+        $(JSON_C_CFLAGS) \
+        $(WEBSOCKETS_CFLAGS) \
+        $(AM_CFLAGS)
+
+mfi_agent_LDADD = \
+        $(JSON_C_LIBS) \
+        $(WEBSOCKETS_LIBS)
diff --git a/autogen.sh b/autogen.sh
new file mode 100755
index 0000000..e3e1d42
--- /dev/null
+++ b/autogen.sh
@@ -0,0 +1,11 @@
+#!/bin/sh
+
+die()
+{
+    echo "$@" >&2
+    exit 1
+}
+
+aclocal || die "aclocal failed"
+automake --add-missing --force-missing --copy --foreign || die "automake failed"
+autoreconf || die "autoreconf failed"
diff --git a/configure.ac b/configure.ac
new file mode 100644
index 0000000..2577a04
--- /dev/null
+++ b/configure.ac
@@ -0,0 +1,84 @@
+AC_INIT([mfi_agent], [1.0], [mike@crute.us])
+AC_PREREQ([2.60])
+
+AM_INIT_AUTOMAKE([foreign -Wall -Werror])
+AM_SILENT_RULES([yes])
+
+AC_PROG_CC
+AC_LANG_WERROR
+AC_PROG_CC_C99
+PKG_PROG_PKG_CONFIG
+AC_CHECK_HEADER_STDBOOL
+
+AC_SEARCH_LIBS(
+    [ev_run],
+    [ev],
+    [found_libev=yes],
+    [found_libev=no]
+)
+AC_CHECK_HEADER(
+    [ev.h],
+    ,
+    found_libev=no
+)
+if test "x$found_libev" = xno; then
+    AC_MSG_ERROR("libev not found")
+fi
+
+PKG_CHECK_MODULES(
+        JSON_C,
+        json-c,
+        [found_json_c=yes],
+        [found_json_c=no]
+)
+if test "x$found_json_c" = xno; then
+        AC_MSG_ERROR("libjson-c not found")
+fi
+
+PKG_CHECK_MODULES(
+        WEBSOCKETS,
+        libwebsockets,
+        [found_libwebsockets=yes],
+        [found_libwebsockets=no]
+)
+if test "x$found_libwebsockets" = xno; then
+        AC_MSG_ERROR("libwebsockets not found")
+fi
+
+AC_ARG_ENABLE(
+    debug,
+    AC_HELP_STRING([--enable-debug], [create a debug build])
+)
+AS_IF([test "x$enable_debug" = xyes], [
+    AM_CFLAGS="-g -DDEBUG $AM_CFLAGS"
+    AM_CFLAGS="$AM_CFLAGS -Wno-long-long -Wall -W -Wformat=2"
+    AM_CFLAGS="$AM_CFLAGS -Wmissing-prototypes -Wstrict-prototypes -Wmissing-declarations"
+    AM_CFLAGS="$AM_CFLAGS -Wwrite-strings -Wshadow -Wpointer-arith -Wsign-compare"
+    AM_CFLAGS="$AM_CFLAGS -Wundef -Wbad-function-cast -Winline -Wcast-align"
+    AM_CFLAGS="$AM_CFLAGS -Wdeclaration-after-statement -Wno-pointer-sign -Wno-attributes"
+    AM_CFLAGS="$AM_CFLAGS -Wno-unused-result"
+])
+
+AC_ARG_ENABLE(
+    [production],
+    AC_HELP_STRING([--enable-production], [produce a production-ready build])
+)
+AS_IF([test "x$enable_production" = xyes], [
+    AM_CFLAGS="-s -Os $AM_CFLAGS"
+])
+
+if test "x$enable_debug" = xyes && test "x$enable_production" = xyes; then
+    AC_MSG_ERROR([Production and Debug are mutually exclusive options])
+fi
+
+# Always build static binaries to make it easier to deploy
+AM_LDFLAGS="-static $AM_LDFLAGS"
+
+AM_CFLAGS="-Wall -Werror $AM_CFLAGS"
+
+AC_SUBST(AM_CFLAGS)
+AC_SUBST(AM_LDFLAGS)
+
+AC_CONFIG_FILES([Makefile])
+
+AC_OUTPUT
diff --git a/main.c b/main.c
new file mode 100644
index 0000000..b57fe33
--- /dev/null
+++ b/main.c
@@ -0,0 +1,93 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#ifdef DEBUG
+#define DEBUG_LOG(e) printf("DEBUG: %s\n", e);
+#else
+#define DEBUG_LOG(e)
+#endif
+
+struct output_status {
+    char value[4];
+    float active_power;
+    float current;
+    float voltage;
+    float power_factor;
+    float energy_sum;
+};
+
+int parse_output(int id, struct output_status *ret);
+void print_output(struct output_status *status);
+
+int parse_output(int id, struct output_status *ret)
+{
+    int done;
+    FILE *fp;
+    char filename[13] = {0};
+
+    if (id > 9 || id < 1) {
+        DEBUG_LOG("Output identifier greater out of range");
+        return 1;
+    }
+
+    snprintf(filename, 12, "/dev/power%d", id);
+
+    fp = fopen(filename, "r");
+    if (fp == NULL) {
+        DEBUG_LOG("Error opening output device");
+        return 1;
+    }
+
+    done = fscanf(fp, "%s %f\n %f\n %f\n %f\n %f",
+                      ret->value, &ret->active_power,
+                      &ret->current, &ret->voltage,
+                      &ret->power_factor, &ret->energy_sum);
+    fclose(fp);
+
+    if (done != 6) {
+        DEBUG_LOG("parse_output did not receive enough fields");
+        return 1;
+    }
+
+    return 0;
+}
+
+void print_output(struct output_status *status)
+{
+    printf("Value: %s\n", status->value);
+    printf("Active Power: %f\n", status->active_power);
+    printf("Current: %f\n", status->current);
+    printf("Voltage: %f\n", status->voltage);
+    printf("Power Factor: %f\n", status->power_factor);
+    printf("Energy Sum: %f\n", status->energy_sum);
+}
+
+int main(int argc, char **argv)
+{
+    int ret;
+    int output;
+    struct output_status status;
+
+    memset(&status, 0, sizeof(status));
+
+    if (argc != 2) {
+        printf("Pass output number\n");
+        return 1;
+    }
+
+    output = atoi(argv[1]);
+    if (output > 9 || output <= 0) {
+        printf("Output out of range\n");
+        return 1;
+    }
+
+    if ((ret = parse_output(output, &status)) != 0) {
+        printf("Failed to parse output\n");
+        return 1;
+    }
+
+    print_output(&status);
+
+    return 0;
+}
diff --git a/make-mips.sh b/make-mips.sh
new file mode 100755
index 0000000..a6f64e9
--- /dev/null
+++ b/make-mips.sh
@@ -0,0 +1,9 @@
+#!/bin/sh
+
+export PATH="/home/mcrute/buildroot-2017.05.1/output/host/usr/bin/:$PATH"
+
+if ! grep 'CC = mips-buildroot-linux-uclibc-gcc' Makefile >/dev/null 2>&1; then
+    make clean
+    ./configure --build x86_64-linux-gnu --host mips-buildroot-linux-uclibc --enable-debug
+fi
+make