First commit: Publish project as open source.

src/healthy.c

@@ -0,0 +1,45 @@
+#define _GNU_SOURCE
+
+#include "healthy.h"
+
+#include "common.h"
+#include "util.h"
+
+int hy_version(hy_t *h, uint8_t *out)
+{
+    uint8_t payload[1] = { 0x50 };
+
+    return ec_xact(h->ec, CMD_VERSION, payload, 1, true, out);
+}
+
+int hy_read(hy_t *h, uint8_t reg, uint8_t *out)
+{
+    uint8_t payload[3] = { TBL_READ, reg, 0x00 };
+
+    return ec_xact(h->ec, CMD_TABLE, payload, 3, true, out);
+}
+
+int hy_write(hy_t *h, uint8_t reg, uint8_t value)
+{
+    uint8_t payload[3] = { TBL_WRITE, reg, value };
+
+    if (ec_xact(h->ec, CMD_TABLE, payload, 3, false, NULL))
+        return -1;
+    nsleep(h->gap);
+    return 0;
+}
+
+int hy_select(hy_t *h, int index)
+{
+    return hy_write(h, REG_FAN_INDEX, (uint8_t)index);
+}
+
+int hy_rpm(hy_t *h, int *out)
+{
+    uint8_t hi, lo;
+
+    if (hy_read(h, REG_RPM_HI, &hi) || hy_read(h, REG_RPM_LO, &lo))
+        return -1;
+    *out = (hi << 8) | lo;
+    return 0;
+}