From ac8d94851bb1a0bb22cd9815a483e8ed2a99e8f5 Mon Sep 17 00:00:00 2001
From: Harsh Sharma <harsh.sharma@multitech.com>
Date: Mon, 3 Feb 2020 15:06:52 -0600
Subject: Added spi path option to test_loragw_cal

---
 libloragw/tst/test_loragw_cal.c | 44 ++++++++++++++++++++++++++++++++---------
 1 file changed, 35 insertions(+), 9 deletions(-)

diff --git a/libloragw/tst/test_loragw_cal.c b/libloragw/tst/test_loragw_cal.c
index 533d189..60c5ce7 100644
--- a/libloragw/tst/test_loragw_cal.c
+++ b/libloragw/tst/test_loragw_cal.c
@@ -31,12 +31,13 @@ Maintainer: Sylvain Miermont
 #include <signal.h>     /* sigaction */
 #include <math.h>       /* cos */
 #include <unistd.h>     /* getopt access */
+#include <getopt.h>     /* getopt_long */
 
 #include "loragw_hal.h"
 #include "loragw_reg.h"
 #include "loragw_aux.h"
 #include "loragw_radio.h"
-
+#include "loragw_spi.h"
 /* -------------------------------------------------------------------------- */
 /* --- PRIVATE MACROS ------------------------------------------------------- */
 
@@ -99,13 +100,14 @@ void usage (void);
 void usage(void) {
     printf("Library version information: %s\n", lgw_version_info());
     printf( "Available options:\n");
-    printf( " -h print this help\n");
-    printf( " -a <float> Radio A frequency in MHz\n");
-    printf( " -b <float> Radio B frequency in MHz\n");
-    printf( " -r <int> Radio type (SX1255:1255, SX1257:1257)\n");
-    printf( " -n <uint> Number of calibration iterations\n");
-    printf( " -k <int> Concentrator clock source (0:radio_A, 1:radio_B(default))\n");
-    printf( " -t <int> Radio to run TX calibration on (0:None(default), 1:radio_A, 2:radio_B, 3:both)\n");
+    printf( " -h    print this help\n");
+    printf( " -a    <float> Radio A frequency in MHz\n");
+    printf( " -b    <float> Radio B frequency in MHz\n");
+    printf( " -r    <int> Radio type (SX1255:1255, SX1257:1257)\n");
+    printf( " -n    <uint> Number of calibration iterations\n");
+    printf( " -k    <int> Concentrator clock source (0:radio_A, 1:radio_B(default))\n");
+    printf( " -t    <int> Radio to run TX calibration on (0:None(default), 1:radio_A, 2:radio_B, 3:both)\n");
+    printf(" --path <string> path of SPIDEV e.g. /dev/spidev0.0\n");
 }
 
 /* -------------------------------------------------------------------------- */
@@ -142,8 +144,16 @@ int main(int argc, char **argv)
     uint8_t tx_enable = 0;
     int nb_cal = 5;
 
+    /* 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:r:n:k:t:")) != -1) {
+    while ((i = getopt_long (argc, argv, "ha:b:r:n:k:t:", long_options, &option_index)) != -1) {
         switch (i) {
             case 'h':
                 usage();
@@ -190,6 +200,22 @@ int main(int argc, char **argv)
                 sscanf(optarg, "%i", &xi);
                 tx_enable = (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();
-- 
cgit v1.2.3