Test for internal triggering.

diff --git a/testing/inttrig.c b/testing/inttrig.c
new file mode 100644 (file)
index 0000000..8b4ab19
--- /dev/null
+++ b/testing/inttrig.c
@@ -0,0 +1,106 @@
+
+#include <stdio.h>
+#include <comedilib.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include <errno.h>
+#include <getopt.h>
+#include <ctype.h>
+#include <math.h>
+#include <sys/time.h>
+#include <string.h>
+#include "comedi_test.h"
+
+#define BUFSZ 2000
+
+int comedi_internal_trigger(comedi_t *device,unsigned int subdevice,
+       unsigned int trignum)
+{
+       comedi_insn insn;
+       lsampl_t data = 0;
+
+#ifndef INSN_INTTRIG
+#define INSN_INTTRIG           ( 6 | INSN_MASK_WRITE|INSN_MASK_SPECIAL)
+#endif
+       memset(&insn,0,sizeof(insn));
+       insn.subdev = subdevice;
+       insn.insn = INSN_INTTRIG;
+       insn.n = 1;
+       insn.data = &data;
+
+       return comedi_do_insn(device,&insn);
+}
+
+
+int test_cmd_start_inttrig(void)
+{
+       comedi_cmd cmd;
+       char buf[BUFSZ];
+       unsigned int chanlist[1];
+       int go;
+       int total=0;
+       int ret;
+
+       if(!(comedi_get_subdevice_flags(device,subdevice)&SDF_CMD)){
+               printf("not applicable\n");
+               return 0;
+       }
+
+       if(comedi_get_cmd_src_mask(device,subdevice,&cmd)<0){
+               printf("  not supported\n");
+               return 0;
+       }
+
+       if(!(cmd.start_src&TRIG_INT)){
+               printf("  not supported\n");
+               return 0;
+       }
+
+       if(comedi_get_cmd_generic_timed(device,subdevice,&cmd)<0){
+               printf("  not supported\n");
+               return 0;
+       }
+
+       if(realtime)cmd.flags |= TRIG_RT;
+       cmd.chanlist = chanlist;
+       cmd.start_src = TRIG_INT;
+       cmd.start_arg = 0;
+       cmd.scan_end_arg = 1;
+       cmd.stop_arg = 100;
+       cmd.chanlist_len = 1;
+       chanlist[0] = CR_PACK(0,0,0);
+
+       ret = comedi_command(device,&cmd);
+       if(ret!=0){
+               printf("E: comedi_command() returned %d, expecting 0\n",ret);
+       }
+
+       ret = comedi_internal_trigger(device,subdevice,0);
+       if(ret<0){
+               printf("E: comedi_internal_trigger(): %s\n",strerror(errno));
+       }
+
+       go=1;
+       while(go){
+               ret = read(comedi_fileno(device),buf,BUFSZ);
+               if(ret<0){
+                       if(errno==EAGAIN){
+                               usleep(10000);
+                       }else{
+                               go = 0;
+                               printf("E: read: %s\n",strerror(errno));
+                       }
+               }else if(ret==0){
+                       go = 0;
+               }else{
+                       total += ret;
+                       if(verbose)
+                               printf("read %d %d\n",ret,total);
+               }
+       }
+
+       return 0;
+}
+
+