ability to set power while transmitting and fix af

src/pifmrds/control_pipe.c

@@ -7,7 +7,6 @@
 
 #include <stdlib.h>
 #include <string.h>
-#include <fcntl.h>
 #include <stdio.h>
 #include <unistd.h>
 #include <errno.h>
@@ -16,6 +15,10 @@
 #include "control_pipe.h"
 
 #define CTL_BUFFER_SIZE 70
+#define GPIO_PAD_0_27                   (0x2C/4)
+#define GPIO_PAD_28_45                  (0x30/4)
+
+static volatile uint32_t *pad_reg;
 
 int fd;
 FILE *f_ctl;
@@ -23,7 +26,9 @@ FILE *f_ctl;
 /*
  * Opens a file (pipe) to be used to control the RDS coder, in non-blocking mode.
  */
-int open_control_pipe(char *filename) {
+int open_control_pipe(char *filename, volatile uint32_t *padreg)
+{
+	pad_reg = padreg;
 	fd = open(filename, O_RDWR | O_NONBLOCK);
 	if(fd == -1) return -1;
 
@@ -37,7 +42,20 @@ int open_control_pipe(char *filename) {
 
 	return 0;
 }
-
+//for bad rds, as most rds decoders won't decode these
+void removeDiacritics(char *str) {
+    char diacritics[] = "ąćęłńóśźżĄĆĘŁŃÓŚŹŻ";
+    char replacements[] = "acelnoszzACELNOSZZ";
+    
+    for (size_t i = 0; i < strlen(str); i++) {
+        for (size_t j = 0; j < strlen(diacritics); j++) {
+            if (str[i] == diacritics[j]) {
+                str[i] = replacements[j];
+                break;
+            }
+        }
+    }
+}
 
 /*
  * Polls the control file (pipe), non-blockingly, and if a command is received,
@@ -119,6 +137,18 @@ int poll_control_pipe() {
 				printf("Wrong PTY identifier! The PTY range is 0 - 31.\n");
 			}
 			res = CONTROL_PIPE_PTY_SET;
+		} else if(fifo[0] == 'U' && fifo[1] == 'R' && fifo[2] == 'T') {
+			arg[64] = 0;
+			removeDiacritics(arg);
+			set_rds_rt(arg);
+			printf("RT set to: \"%s\"\n", arg);
+			res = CONTROL_PIPE_RT_SET;
+		} else if(fifo[0] == 'P' && fifo[1] == 'W' && fifo[2] == 'R') {
+			arg[1] = 0;
+			pad_reg[GPIO_PAD_0_27] = 0x5a000018 + atoi(arg);
+    		pad_reg[GPIO_PAD_28_45] = 0x5a000018 + atoi(arg);
+			printf("POWER set to: \"%s\"\n", arg);
+			res = CONTROL_PIPE_PWR_SET;
 		}
 	}
 
@@ -129,4 +159,4 @@ int close_control_pipe() {
 	if(f_ctl) fclose(f_ctl);
 	if(fd) return close(fd);
 	else return 0;
-}
+}

src/pifmrds/control_pipe.h

@@ -4,7 +4,7 @@
 
     See https://github.com/Miegl/PiFmAdv
 */
-
+#include <fcntl.h>
 #define CONTROL_PIPE_PS_SET 1
 #define CONTROL_PIPE_RT_SET 2
 #define CONTROL_PIPE_TA_SET 3
@@ -13,7 +13,8 @@
 #define CONTROL_PIPE_MS_SET 6
 #define CONTROL_PIPE_AB_SET 7
 #define CONTROL_PIPE_PI_SET 8
+#define CONTROL_PIPE_PWR_SET 9
 
-extern int open_control_pipe(char *filename);
+extern int open_control_pipe(char *filename, volatile uint32_t *padreg);
 extern int close_control_pipe();
 extern int poll_control_pipe();

src/pifmrds/fm_mpx.c

@@ -328,7 +328,7 @@ int fm_mpx_get_samples(float *mpx_buffer, int drds) {
         else
         {
             mpx_buffer[i] =  
-                mpx_buffer[i] +    // RDS data samples are currently in mpx_buffer :to be Remove in NBFM
+                mpx_buffer[i] +    // RDS data samples are currently in mpx_buffer :to be Remove in NFM
                 9.0*out_left;      // Unmodulated monophonic signal
         } 
             

src/pifmrds/pi_fm_rds.cpp

@@ -118,7 +118,7 @@ int tx(uint32_t carrier_freq, char *audio_file, uint16_t pi, char *ps, char *rt,
     set_rds_rt(rt);
     set_rds_pty(pty);
     set_rds_ab(0);
-    set_rds_ms(0);
+    set_rds_ms(1);
     set_rds_tp(0);
     set_rds_ta(0);
     uint16_t count = 0;
@@ -149,7 +149,7 @@ int tx(uint32_t carrier_freq, char *audio_file, uint16_t pi, char *ps, char *rt,
 
         // Initialize the control pipe reader
         if(control_pipe) {
-            if(open_control_pipe(control_pipe) == 0) {
+            if(open_control_pipe(control_pipe, pad_reg) == 0) {
                 printf("Reading control commands on %s.\n", control_pipe);
             } else {
                 printf("Failed to open control pipe: %s.\n", control_pipe);
@@ -301,7 +301,7 @@ int main(int argc, char **argv) {
         } else if(strcmp("-af", arg)==0 && param != NULL) {
             i++;
             af_size++;
-            alternative_freq[af_size] = (int)(10*atof(optarg))-875;
+            alternative_freq[af_size] = (int)(10*atof(param))-875;
             if(alternative_freq[af_size] < 1 || alternative_freq[af_size] > 204)
                 fatal("Alternative Frequency has to be set in range of 87.6 Mhz - 107.9 Mhz\n"); //honestly i have no idea why 87.5 and 108 isn't in here, i copied this code, okay?
         }