From: Uwe Hermann <redacted>
Date: Tue, 1 Apr 2014 21:23:23 +0000 (+0200)
Subject: chronovu-la: Fix byte order for LA16 samples sent to the bus.
X-Git-Tag: libsigrok-0.3.0~94
X-Git-Url: https://sigrok.org/gitaction?a=commitdiff_plain;h=05266f36a5d4cd9371983bb5f659266489327af2;p=libsigrok.git

chronovu-la: Fix byte order for LA16 samples sent to the bus.
---

diff --git a/hardware/chronovu-la/protocol.c b/hardware/chronovu-la/protocol.c
index 28ac15be..5b4723c2 100644
--- a/hardware/chronovu-la/protocol.c
+++ b/hardware/chronovu-la/protocol.c
@@ -417,8 +417,8 @@ SR_PRIV int cv_read_block(struct dev_context *devc)
 
 SR_PRIV void cv_send_block_to_session_bus(struct dev_context *devc, int block)
 {
-	int i;
-	uint8_t sample, expected_sample;
+	int i, idx;
+	uint8_t sample, expected_sample, tmp8;
 	struct sr_datafeed_packet packet;
 	struct sr_datafeed_logic logic;
 	int trigger_point; /* Relative trigger point (in this block). */
@@ -452,6 +452,16 @@ SR_PRIV void cv_send_block_to_session_bus(struct dev_context *devc, int block)
 		}
 	}
 
+	/* Swap low and high bytes of the 16-bit LA16 samples. */
+	if (devc->prof->model == CHRONOVU_LA16) {
+		for (i = 0; i < BS; i += 2) {
+			idx = (block * BS) + i;
+			tmp8 = devc->final_buf[idx];
+			devc->final_buf[idx] = devc->final_buf[idx + 1];
+			devc->final_buf[idx + 1] = tmp8;
+		}
+	}
+
 	/* If no trigger was found, send one SR_DF_LOGIC packet. */
 	if (trigger_point == -1) {
 		/* Send an SR_DF_LOGIC packet to the session bus. */