From febb8372c248a11007eee7ea0267178f0dec61ee Mon Sep 17 00:00:00 2001
From: Harsh Sharma <harsh.sharma@multitech.com>
Date: Mon, 3 Feb 2020 15:14:42 -0600
Subject: Added spi path option to test loragw hal

---
 libloragw/tst/test_loragw_hal.c | 31 +++++++++++++++++++++++++++++--
 1 file changed, 29 insertions(+), 2 deletions(-)

diff --git a/libloragw/tst/test_loragw_hal.c b/libloragw/tst/test_loragw_hal.c
index e2fee5e..3bdd7b2 100644
--- a/libloragw/tst/test_loragw_hal.c
+++ b/libloragw/tst/test_loragw_hal.c
@@ -30,7 +30,9 @@ Maintainer: Sylvain Miermont
 #include <string.h>        /* memset */
 #include <signal.h>        /* sigaction */
 #include <unistd.h>        /* getopt access */
+#include <getopt.h>     /* getopt_long */
 
+#include "loragw_spi.h"
 #include "loragw_hal.h"
 #include "loragw_reg.h"
 #include "loragw_aux.h"
@@ -78,6 +80,7 @@ void usage(void) {
     printf( " -t <float> Radio TX frequency in MHz\n");
     printf( " -r <int> Radio type (SX1255:1255, SX1257:1257)\n");
     printf( " -k <int> Concentrator clock source (0: radio_A, 1: radio_B(default))\n");
+    printf(" --path <string> path of SPIDEV e.g. /dev/spidev0.0\n");
 }
 
 /* -------------------------------------------------------------------------- */
@@ -107,8 +110,16 @@ int main(int argc, char **argv)
     double xd = 0.0;
     int xi = 0;
 
+    /* Parameter parsing */
+    int option_index = 0;
+    static struct option long_options[] = {
+        {"path", 1, 0, 0},
+        {0, 0, 0, 0}
+    };
+    char arg_s[64];
+
     /* parse command line options */
-    while ((i = getopt (argc, argv, "ha:b:t:r:k:")) != -1) {
+    while ((i = getopt_long (argc, argv, "ha:b:r:n:k:t:", long_options, &option_index)) != -1) {
         switch (i) {
             case 'h':
                 usage();
@@ -145,6 +156,22 @@ int main(int argc, char **argv)
                 sscanf(optarg, "%i", &xi);
                 clocksource = (uint8_t)xi;
                 break;
+            case 0:
+                if (strcmp(long_options[option_index].name,"path") == 0) {
+                    i = sscanf(optarg, "%s", arg_s);
+                    if ((i != 1) || (strncmp(arg_s, "/dev/", 5 ) != 0)) {
+                        printf("ERROR: argument parsing of --path argument. Use -h to print help\n");
+                        return -1;
+                    }
+                    else {
+                        lgw_spi_set_path(arg_s);
+                    }
+                }
+                else {
+                    printf("ERROR: argument parsing options. Use -h to print help\n");
+                    return -1;
+                }
+                break;
             default:
                 printf("ERROR: argument parsing\n");
                 usage();
@@ -307,7 +334,7 @@ int main(int argc, char **argv)
     if (i == LGW_HAL_SUCCESS) {
         printf("*** Concentrator started ***\n");
     } else {
-        printf("*** Impossible to start concentrator ***\n");
+        printf("*** Unable to start concentrator ***\n");
         return -1;
     }
 
-- 
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