X-Git-Url: https://git.ao2.it/visomat-utils.git/blobdiff_plain/ec6cf524733f65ff40ac2e086e96e0dfd38e1dda..91d0c4148bdb1fca33062b80b669e3c9e00c8030:/src/visomat-data-downloader.c

diff --git a/src/visomat-data-downloader.c b/src/visomat-data-downloader.c
index 0eca9c1..a91ee43 100644
--- a/src/visomat-data-downloader.c
+++ b/src/visomat-data-downloader.c
@@ -63,6 +63,7 @@ struct datetime  {
 };
 
 struct pressure  {
+	unsigned int flag; /* XXX Maybe this means arrhythmia? */
 	unsigned int systolic;
 	unsigned int diastolic;
 	unsigned int pulses;
@@ -102,16 +103,24 @@ static void print_record_csv_compat(struct datetime *d, struct pressure *p)
 	pulse_pressure = p->systolic - p->diastolic;
 	printf("%u;", pulse_pressure);
 
+	if (p->flag)
+		printf("x");
+
+#if 0
+	/* The original software does not seem to be doing that */
 	if (p->pulses > 100)
 		printf("tachycardia");
 	else if (p->pulses < 60)
 		printf("bradycardia");
+#endif
 
 	printf("\n");
 }
 
 /* TODO separate better decoding data from printing it */
-static int decode_eeprom(unsigned char *buffer, unsigned int len)
+static int decode_eeprom(unsigned char *buffer,
+			 unsigned int len,
+			 unsigned int user_mask)
 {
 	int ret;
 	unsigned int n;
@@ -137,7 +146,6 @@ static int decode_eeprom(unsigned char *buffer, unsigned int len)
 			/* i tracks the bytes consumed */
 			i += 1;
 
-
 			ret = sscanf((char *)(buffer + i), "%1u%02u",
 				     &user_id, &num_records);
 			if (ret != 2)
@@ -146,8 +154,6 @@ static int decode_eeprom(unsigned char *buffer, unsigned int len)
 			/* user_id and num_records take 3 bytes */
 			i += 3;
 
-			printf("# User: %d\n", user_id);
-
 			for (j = 0; j < num_records; j++) {
 				ret = extract_datetime(buffer + i, &d);
 				if (ret < 0)
@@ -157,17 +163,23 @@ static int decode_eeprom(unsigned char *buffer, unsigned int len)
 				i += 10;
 
 				ret = sscanf((char *)(buffer + i),
-					     "%04u%03u%03u",
+					     "%1u%03u%03u%03u",
+					     &p.flag,
 					     &p.systolic,
 					     &p.diastolic,
 					     &p.pulses);
-				if (ret != 3)
+				if (ret != 4)
 					return -EINVAL;
 
 				/* pressure data is 10 bytes */
 				i += 10;
 
-				print_record_csv_compat(&d, &p);
+				/* TODO: split out the printing part */
+				if (user_id & user_mask) {
+					if (j == 0)
+						printf("# User: %d\n", user_id);
+					print_record_csv_compat(&d, &p);
+				}
 			}
 		}
 	}
@@ -258,7 +270,7 @@ static int get_response(libusb_device_handle *dev,
 
 /* Candidates for a future public API, if a shared library will ever be made */
 #define visomat_device libusb_device_handle
-static int visomat_dump_eeprom(visomat_device *dev)
+static int visomat_dump_eeprom(visomat_device *dev, unsigned int user_mask)
 {
 	/* Assuming an EEPROM of 1 KiB  */
 	unsigned char buffer[1024] = { 0 };
@@ -272,7 +284,7 @@ static int visomat_dump_eeprom(visomat_device *dev)
 	if (ret < 0)
 		return ret;
 
-	ret = decode_eeprom(buffer, ret);
+	ret = decode_eeprom(buffer, ret, user_mask);
 	if (ret < 0)
 		return ret;
 
@@ -315,14 +327,14 @@ int main(void)
 	}
 
 	libusb_set_configuration(dev, 1);
-	libusb_claim_interface(dev, 1);
 	libusb_detach_kernel_driver(dev, 1);
+	libusb_claim_interface(dev, 1);
 
 	ret = visomat_get_datetime(dev);
 	if (ret < 0)
 		goto out;
 
-	ret = visomat_dump_eeprom(dev);
+	ret = visomat_dump_eeprom(dev, 0x01 | 0x02);
 
 out:
 	libusb_close(dev);