driver_sirf: Decode datum. Finally a regression change!

1 files changed, 25 insertions, 0 deletions

diff --git a/driver_sirf.c b/driver_sirf.c
index 83555055..b2bcb472 100644
--- a/driver_sirf.c
+++ b/driver_sirf.c
@@ -587,6 +587,7 @@ static gps_mask_t sirf_msg_67_1(struct gps_device_t *session,
     uint8_t time_source = 0;
     struct tm unpacked_date;
     unsigned char datum;
+    const char *datum_str;
     int64_t clk_bias;
     uint32_t clk_bias_error;
     int32_t clk_offset;
@@ -650,6 +651,30 @@ static gps_mask_t sirf_msg_67_1(struct gps_device_t *session,
     mask |= TIME_SET;
 
     datum = getub(buf, 33);
+    switch (datum) {
+    case 21:
+        datum_str = "WGS84";
+        break;
+    case 178:
+        datum_str = "Tokyo Mean";
+        break;
+    case 179:
+        datum_str = "Tokyo-Japan";
+        break;
+    case 180:
+        datum_str = "Tokyo-Korea";
+        break;
+    case 181:
+        datum_str = "Tokyo-Okinawa";
+        break;
+    case 182:
+        datum_str = "PZ90.11";
+        break;
+    default:
+        datum_str = "Other";
+    }
+    strlcpy(session->newdata.datum, datum_str, sizeof(session->newdata.datum));
+
     clk_bias = getbes64(buf, 34) / 100.0;
     clk_bias_error = getbeu32(buf, 42) / 100.0;
     clk_offset = getbes32(buf, 46) / 100.0;