X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Fhardware%2Fbaylibre-acme%2Fprotocol.c;h=17ae5b90859e764eb852439dadeab9314823cd64;hb=7d0f52f7e5cb16d204490ca4006983237bf3df7d;hp=9d4f75076f75e05f83938c46acf6db99903cefd8;hpb=633531416b85b3e0e173c8218582993e255eba51;p=libsigrok.git

diff --git a/src/hardware/baylibre-acme/protocol.c b/src/hardware/baylibre-acme/protocol.c
index 9d4f7507..17ae5b90 100644
--- a/src/hardware/baylibre-acme/protocol.c
+++ b/src/hardware/baylibre-acme/protocol.c
@@ -18,6 +18,7 @@
  */
 
 #include <config.h>
+#include <math.h>
 #include <string.h>
 #include <stdlib.h>
 #include <errno.h>
@@ -50,6 +51,7 @@ struct channel_group_priv {
 struct channel_priv {
 	int ch_type;
 	int fd;
+	int digits;
 	float val;
 	struct channel_group_priv *probe;
 };
@@ -164,8 +166,10 @@ SR_PRIV gboolean bl_acme_detect_probe(unsigned int addr,
 	probe_name_path(addr, path);
 	status = g_file_get_contents(path->str, &buf, &size, &err);
 	if (!status) {
-		sr_dbg("Name for probe %d can't be read: %s",
-		       prb_num, err->message);
+		/* Don't log "No such file or directory" messages. */
+		if (err->code != G_FILE_ERROR_NOENT)
+			sr_dbg("Name for probe %d can't be read (%d): %s",
+			       prb_num, err->code, err->message);
 		g_string_free(path, TRUE);
 		g_error_free(err);
 		return ret;
@@ -306,11 +310,11 @@ static int read_probe_eeprom(unsigned int addr, struct probe_eeprom *eeprom)
 static int revB_addr_to_num(unsigned int addr)
 {
 	switch (addr) {
-	case 0x44:	return 5;
-	case 0x45:	return 6;
-	case 0x42:	return 3;
-	case 0x43:	return 4;
-	default:	return addr - 0x3f;
+	case 0x44: return 5;
+	case 0x45: return 6;
+	case 0x42: return 3;
+	case 0x43: return 4;
+	default:   return addr - 0x3f;
 	}
 }
 
@@ -613,18 +617,18 @@ static int channel_to_unit(struct sr_channel *ch)
 }
 
 /* We need to scale measurements down from the units used by the drivers. */
-static float adjust_data(int val, int type)
+static int type_digits(int type)
 {
 	switch (type) {
 	case ENRG_PWR:
-		return ((float)val) / 1000000.0;
+		return 6;
 	case ENRG_CURR: /* Fallthrough */
 	case ENRG_VOL: /* Fallthrough */
 	case TEMP_IN: /* Fallthrough */
 	case TEMP_OUT:
-		return ((float)val) / 1000.0;
+		return 3;
 	default:
-		return 0.0;
+		return 0;
 	}
 }
 
@@ -648,7 +652,8 @@ static float read_sample(struct sr_channel *ch)
 		return -1.0;
 	}
 
-	return adjust_data(strtol(buf, NULL, 10), chp->ch_type);
+	chp->digits = type_digits(chp->ch_type);
+	return strtol(buf, NULL, 10) * powf(10, -chp->digits);
 }
 
 SR_PRIV int bl_acme_open_channel(struct sr_channel *ch)
@@ -777,6 +782,8 @@ SR_PRIV int bl_acme_receive_data(int fd, int revents, void *cb_data)
 			if (i < 1)
 				chp->val = read_sample(ch);
 
+			analog.encoding->digits  = chp->digits;
+			analog.spec->spec_digits = chp->digits;
 			analog.data = &chp->val;
 			sr_session_send(sdi, &packet);
 		}
@@ -788,7 +795,7 @@ SR_PRIV int bl_acme_receive_data(int fd, int revents, void *cb_data)
 	sr_sw_limits_update_samples_read(&devc->limits, 1);
 
 	if (sr_sw_limits_check(&devc->limits)) {
-		sdi->driver->dev_acquisition_stop(sdi);
+		sr_dev_acquisition_stop(sdi);
 		return TRUE;
 	}