00001 #include <stdio.h>
00002 #include <stdlib.h>
00003 #include <ctype.h>
00004 #include "../include/asoundlib.h"
00005 #include <signal.h>
00006
00007 static void usage(void)
00008 {
00009 fprintf(stderr, "usage: rawmidi [options]\n");
00010 fprintf(stderr, " options:\n");
00011 fprintf(stderr, " -v: verbose mode\n");
00012 fprintf(stderr, " -i device-id : test ALSA input device\n");
00013 fprintf(stderr, " -o device-id : test ALSA output device\n");
00014 fprintf(stderr, " -I node : test input node\n");
00015 fprintf(stderr, " -O node : test output node\n");
00016 fprintf(stderr, " -t: test midi thru\n");
00017 fprintf(stderr, " example:\n");
00018 fprintf(stderr, " rawmidi -i hw:0,0 -O /dev/midi1\n");
00019 fprintf(stderr, " tests input for card 0, device 0, using snd_rawmidi API\n");
00020 fprintf(stderr, " and /dev/midi1 using file descriptors\n");
00021 }
00022
00023 int stop=0;
00024
00025 void sighandler(int dum)
00026 {
00027 stop=1;
00028 }
00029
00030 int main(int argc,char** argv)
00031 {
00032 int i;
00033 int err;
00034 int thru=0;
00035 int verbose = 0;
00036 char *device_in = NULL;
00037 char *device_out = NULL;
00038 char *node_in = NULL;
00039 char *node_out = NULL;
00040
00041 int fd_in = -1,fd_out = -1;
00042 snd_rawmidi_t *handle_in = 0,*handle_out = 0;
00043
00044 if (argc==1) {
00045 usage();
00046 exit(0);
00047 }
00048
00049 for (i = 1 ; i<argc ; i++) {
00050 if (argv[i][0]=='-') {
00051 switch (argv[i][1]) {
00052 case 'h':
00053 usage();
00054 break;
00055 case 'v':
00056 verbose = 1;
00057 break;
00058 case 't':
00059 thru = 1;
00060 break;
00061 case 'i':
00062 if (i + 1 < argc)
00063 device_in = argv[++i];
00064 break;
00065 case 'I':
00066 if (i + 1 < argc)
00067 node_in = argv[++i];
00068 break;
00069 case 'o':
00070 if (i + 1 < argc)
00071 device_out = argv[++i];
00072 break;
00073 case 'O':
00074 if (i + 1 < argc)
00075 node_out = argv[++i];
00076 break;
00077 }
00078 }
00079 }
00080
00081 if (verbose) {
00082 fprintf(stderr,"Using: \n");
00083 fprintf(stderr,"Input: ");
00084 if (device_in) {
00085 fprintf(stderr,"device %s\n",device_in);
00086 }else if (node_in){
00087 fprintf(stderr,"%s\n",node_in);
00088 }else{
00089 fprintf(stderr,"NONE\n");
00090 }
00091 fprintf(stderr,"Output: ");
00092 if (device_out) {
00093 fprintf(stderr,"device %s\n",device_out);
00094 }else if (node_out){
00095 fprintf(stderr,"%s\n",node_out);
00096 }else{
00097 fprintf(stderr,"NONE\n");
00098 }
00099 }
00100
00101 if (device_in) {
00102 err = snd_rawmidi_open(&handle_in,NULL,device_in,0);
00103 if (err) {
00104 fprintf(stderr,"snd_rawmidi_open %s failed: %d\n",device_in,err);
00105 }
00106 }
00107 if (node_in && (!node_out || strcmp(node_out,node_in))) {
00108 fd_in = open(node_in,O_RDONLY);
00109 if (fd_in<0) {
00110 fprintf(stderr,"open %s for input failed\n",node_in);
00111 }
00112 }
00113
00114 signal(SIGINT,sighandler);
00115
00116 if (device_out) {
00117 err = snd_rawmidi_open(NULL,&handle_out,device_out,0);
00118 if (err) {
00119 fprintf(stderr,"snd_rawmidi_open %s failed: %d\n",device_out,err);
00120 }
00121 }
00122 if (node_out && (!node_in || strcmp(node_out,node_in))) {
00123 fd_out = open(node_out,O_WRONLY);
00124 if (fd_out<0) {
00125 fprintf(stderr,"open %s for output failed\n",node_out);
00126 }
00127 }
00128
00129 if (node_in && node_out && strcmp(node_out,node_in)==0) {
00130 fd_in = fd_out = open(node_out,O_RDWR);
00131 if (fd_out<0) {
00132 fprintf(stderr,"open %s for input and output failed\n",node_out);
00133 }
00134 }
00135
00136
00137
00138 if (!thru) {
00139 if (handle_in || fd_in!=-1) {
00140 fprintf(stderr,"Read midi in\n");
00141 fprintf(stderr,"Press ctrl-c to stop\n");
00142 }
00143
00144 if (handle_in) {
00145 unsigned char ch;
00146 while (!stop) {
00147 snd_rawmidi_read(handle_in,&ch,1);
00148 if (verbose) {
00149 fprintf(stderr,"read %02x\n",ch);
00150 }
00151 }
00152 }
00153 if (fd_in!=-1) {
00154 unsigned char ch;
00155 while (!stop) {
00156 read(fd_in,&ch,1);
00157 if (verbose) {
00158 fprintf(stderr,"read %02x\n",ch);
00159 }
00160 }
00161 }
00162
00163 if (handle_out || fd_out!=-1) {
00164 fprintf(stderr,"Writing note on / note off\n");
00165 }
00166
00167 if (handle_out) {
00168 unsigned char ch;
00169 ch=0x90; snd_rawmidi_write(handle_out,&ch,1);
00170 ch=60; snd_rawmidi_write(handle_out,&ch,1);
00171 ch=100; snd_rawmidi_write(handle_out,&ch,1);
00172 snd_rawmidi_drain(handle_out);
00173 sleep(1);
00174 ch=0x90; snd_rawmidi_write(handle_out,&ch,1);
00175 ch=60; snd_rawmidi_write(handle_out,&ch,1);
00176 ch=0; snd_rawmidi_write(handle_out,&ch,1);
00177 snd_rawmidi_drain(handle_out);
00178 }
00179 if (fd_out!=-1) {
00180 unsigned char ch;
00181 ch=0x90; write(fd_out,&ch,1);
00182 ch=60; write(fd_out,&ch,1);
00183 ch=100; write(fd_out,&ch,1);
00184 sleep(1);
00185 ch=0x90; write(fd_out,&ch,1);
00186 ch=60; write(fd_out,&ch,1);
00187 ch=0; write(fd_out,&ch,1);
00188 }
00189 } else {
00190 if ((handle_in || fd_in!=-1) && (handle_out || fd_out!=-1)) {
00191 if (verbose) {
00192 fprintf(stderr,"Testing midi thru in\n");
00193 }
00194 while (!stop) {
00195 unsigned char ch;
00196
00197 if (handle_in) {
00198 snd_rawmidi_read(handle_in,&ch,1);
00199 }
00200 if (fd_in!=-1) {
00201 read(fd_in,&ch,1);
00202 }
00203 if (verbose) {
00204 fprintf(stderr,"thru: %02x\n",ch);
00205 }
00206
00207 if (handle_out) {
00208 snd_rawmidi_write(handle_out,&ch,1);
00209 snd_rawmidi_drain(handle_out);
00210 }
00211 if (fd_out!=-1) {
00212 write(fd_out,&ch,1);
00213 }
00214 }
00215 }else{
00216 fprintf(stderr,"Testing midi thru needs both input and output\n");
00217 exit(-1);
00218 }
00219 }
00220
00221 if (verbose) {
00222 fprintf(stderr,"Closing\n");
00223 }
00224
00225 if (handle_in) {
00226 snd_rawmidi_drain(handle_in);
00227 snd_rawmidi_close(handle_in);
00228 }
00229 if (handle_out) {
00230 snd_rawmidi_drain(handle_out);
00231 snd_rawmidi_close(handle_out);
00232 }
00233 if (fd_in!=-1) {
00234 close(fd_in);
00235 }
00236 if (fd_out!=-1) {
00237 close(fd_out);
00238 }
00239
00240 return 0;
00241 }
