From: Bert Vermeulen <redacted>
Date: Mon, 24 Dec 2012 09:40:04 +0000 (+0100)
Subject: fluke-dmm: make poll timeout configurable
X-Git-Tag: dsupstream~423
X-Git-Url: https://sigrok.org/gitaction?a=commitdiff_plain;h=d4b11de09a42710c1c043693d5bda0fc8bc72f90;p=libsigrok.git

fluke-dmm: make poll timeout configurable

Defaulted to 1s before, but a simple "QM" command on a 199B in scope
mode takes 1.7s to come through.
---

diff --git a/hardware/fluke-dmm/api.c b/hardware/fluke-dmm/api.c
index 154479cc..7ac86fc8 100644
--- a/hardware/fluke-dmm/api.c
+++ b/hardware/fluke-dmm/api.c
@@ -50,8 +50,9 @@ SR_PRIV struct sr_dev_driver flukedmm_driver_info;
 static struct sr_dev_driver *di = &flukedmm_driver_info;
 
 static const struct flukedmm_profile supported_flukedmm[] = {
-	{ FLUKE_187, "187", 100 },
-	{ FLUKE_287, "287", 100 },
+	{ FLUKE_187, "187", 100, 1000 },
+	{ FLUKE_287, "287", 100, 1000 },
+	{ FLUKE_190, "199B", 1000, 3500 },
 };
 
 
diff --git a/hardware/fluke-dmm/fluke-dmm.h b/hardware/fluke-dmm/fluke-dmm.h
index 2dc6af57..1d77ac85 100644
--- a/hardware/fluke-dmm/fluke-dmm.h
+++ b/hardware/fluke-dmm/fluke-dmm.h
@@ -44,6 +44,8 @@ struct flukedmm_profile {
 	const char *modelname;
 	/* How often to poll, in ms. */
 	int poll_period;
+	/* If no response received, how long to wait before retrying. */
+	int timeout;
 };
 
 /* Private, per-device-instance driver context. */
diff --git a/hardware/fluke-dmm/fluke.c b/hardware/fluke-dmm/fluke.c
index 078ada1d..eb7cfdc1 100644
--- a/hardware/fluke-dmm/fluke.c
+++ b/hardware/fluke-dmm/fluke.c
@@ -346,11 +346,10 @@ SR_PRIV int fluke_receive_data(int fd, int revents, void *cb_data)
 	now = g_get_monotonic_time() / 1000;
 	elapsed = now - devc->cmd_sent_at;
 	/* Send query command at poll_period interval, or after 1 second
-	 * has elapsed. This will make it recover from any out-of-sync
-	 * or temporary disconnect issues. */
+	 * has elapsed. This will make it easier to recover from any
+	 * out-of-sync or temporary disconnect issues. */
 	if ((devc->expect_response == FALSE && elapsed > devc->profile->poll_period)
-			|| elapsed > 1000) {
-		sr_spew("Sending QM.");
+			|| elapsed > devc->profile->timeout) {
 		if (serial_write(devc->serial, "QM\r", 3) == -1)
 			sr_err("Unable to send QM: %s.", strerror(errno));
 		devc->cmd_sent_at = now;