From: Marek Vasut <redacted>
Date: Sun, 20 Apr 2014 20:36:55 +0000 (+0200)
Subject: asix-sigma: Introduce function to read DRAM cluster timestamp
X-Git-Tag: libsigrok-0.3.0~35
X-Git-Url: https://sigrok.org/gitaction?a=commitdiff_plain;h=3513d965699c663c329955f1a96f79fce73dcc6e;p=libsigrok.git

asix-sigma: Introduce function to read DRAM cluster timestamp

Introduce helper function which returns the timestamp of DRAM cluster
and use it in download_capture().

Signed-off-by: Marek Vasut <redacted>
---

diff --git a/hardware/asix-sigma/asix-sigma.c b/hardware/asix-sigma/asix-sigma.c
index e5737324..d2543a4d 100644
--- a/hardware/asix-sigma/asix-sigma.c
+++ b/hardware/asix-sigma/asix-sigma.c
@@ -929,6 +929,15 @@ static int get_trigger_offset(uint16_t *samples, uint16_t last_sample,
 	return i & 0x7;
 }
 
+
+/*
+ * Return the timestamp of "DRAM cluster".
+ */
+static uint16_t sigma_dram_cluster_ts(struct sigma_dram_cluster *cluster)
+{
+	return (cluster->timestamp_hi << 8) | cluster->timestamp_lo;
+}
+
 /*
  * Decode chunk of 1024 bytes, 64 clusters, 7 events per cluster.
  * Each event is 20ns apart, and can contain multiple samples.
@@ -1127,7 +1136,8 @@ static int download_capture(struct sr_dev_inst *sdi)
 
 		/* This is the first DRAM line, so find the initial timestamp. */
 		if (dl_lines_done == 0) {
-			devc->state.lastts = RL16(buf) - 1;
+			devc->state.lastts =
+				sigma_dram_cluster_ts(&dram_line[0].cluster[0]);
 			devc->state.lastsample = 0;
 		}