[libftdi] / examples / stream_test.c

/* stream_test.c
 *
 * Test reading  from FT2232H in synchronous FIFO mode.
 *
 * The FT2232H must supply data due to an appropriate circuit
 *
 * To check for skipped block with appended code, 
 *     a structure as follows is assumed
 * 1* uint32_t num (incremented in 0x4000 steps)
 * 3* uint32_t dont_care
 *
 * After start, data will be read in streaming until the program is aborted
 * Progess information wil be printed out
 * If a filename is given on the command line, the data read will be
 * written to that file
 *
 */
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <unistd.h>
#include <getopt.h>
#include <signal.h>
#include <errno.h>
#include <ftdi.h>
void check_outfile(char *);

static FILE *outputFile;

static int check = 1;
static int exitRequested = 0;
/*
 * sigintHandler --
 *
 *    SIGINT handler, so we can gracefully exit when the user hits ctrl-C.
 */

static void
sigintHandler(int signum)
{
   exitRequested = 1;
}

static void
usage(const char *argv0)
{
   fprintf(stderr,
           "Usage: %s [tions...] \n"
           "Test streaming read from FT2232H\n"
           "[-P string] only look for product with given string"
           "[-n] don't check for special block structure"
           "\n"
           "If some filename is given, write data read to that file\n"
           "Progess information is printed each second\n"
           "Abort with ^C\n"
           "\n"
           "Options:\n"
           "\n"
           "Copyright (C) 2009 Micah Dowty <micah@navi.cx>\n",
           "Adapted for use with libftdi (C) 2010 Uwe Bonnes <bon@elektron.ikp.physik.tu-darmstadt.de>\n",
           argv0);
   exit(1);
}

static uint32_t start = 0;
static uint32_t offset = 0;
static uint32_t blocks = 0;
static uint32_t skips = 0;
static uint32_t n_err = 0;
static int
readCallback(uint8_t *buffer, int length, FTDIProgressInfo *progress, void *userdata)
{
   if (length)
   {
       if (check)
       {
           int i,rem;
           uint32_t num;
           for (i= offset; i<length-16; i+=16)
           {
               num = *(uint32_t*) (buffer+i);
               if (start && (num != start +0x4000))
               {
                   uint32_t delta = ((num-start)/0x4000)-1;
                   fprintf(stderr, "Skip %7d blocks from 0x%08x to 0x%08x at blocks %10d \n",
                           delta, start -0x4000, num, blocks);
                   n_err++;
                   skips += delta;
               }
               blocks ++;
               start = num;
           }
           rem = length -i;
           if (rem >3)
           {
               num = *(uint32_t*) (buffer+i);
               if (start && (num != start +0x4000))
               {
                   uint32_t delta = ((num-start)/0x4000)-1;
                   fprintf(stderr, "Skip %7d blocks from 0x%08x to 0x%08x at blocks %10d \n",
                           delta, start -0x4000, num, blocks);
                   n_err++;
                   skips += delta;
               }
               start = num;
           }
           else if (rem)
               start += 0x4000;
           if (rem != 0);
           {
               blocks ++;
               offset = 16-rem;
           }
       }
       if (outputFile)
       {
           if (fwrite(buffer, length, 1, outputFile) != 1)
           {
               perror("Write error");
               return 1;
           }
       }
   }
   if (progress)
   {
       fprintf(stderr, "%10.02fs total time %9.3f MiB captured %7.1f kB/s curr rate %7.1f kB/s totalrate \n",
               progress->totalTime,
               progress->current.totalBytes / (1024.0 * 1024.0),
               progress->currentRate / 1024.0,
               progress->totalRate / 1024.0);
   }
   return exitRequested ? 1 : 0;
}

int main(int argc, char **argv)
{
   struct ftdi_context ftdic;
   int err, c;
   FILE *of = NULL;
   char const *outfile  = 0;
   outputFile =0;
   exitRequested = 0;
   char *descstring = NULL;
   int option_index;
   static struct option long_options[] = {{NULL},};

   while ((c = getopt_long(argc, argv, "P:n", long_options, &option_index)) !=- 1)
       switch (c) 
       {
       case -1:
           break;
       case 'P':
           descstring = optarg;
           break;
       case 'n':
           check = 0;
           break;
       default:
           usage(argv[0]);
       }
   
   if (optind == argc - 1)
   {
       // Exactly one extra argument- a dump file
       outfile = argv[optind];
   }
   else if (optind < argc)
   {
       // Too many extra args
       usage(argv[0]);
   }
   
   if (ftdi_init(&ftdic) < 0)
   {
       fprintf(stderr, "ftdi_init failed\n");
       return EXIT_FAILURE;
   }
   
   if (ftdi_set_interface(&ftdic, INTERFACE_A) < 0)
   {
       fprintf(stderr, "ftdi_set_interface failed\n");
       return EXIT_FAILURE;
   }
   
   if (ftdi_usb_open_desc(&ftdic, 0x0403, 0x6010, descstring, NULL) < 0)
   {
       fprintf(stderr,"Can't open ftdi device: %s\n",ftdi_get_error_string(&ftdic));
       return EXIT_FAILURE;
   }
   
   /* A timeout value of 1 results in may skipped blocks */
   if(ftdi_set_latency_timer(&ftdic, 2))
   {
       fprintf(stderr,"Can't set latency\n",ftdi_get_error_string(&ftdic));
       return EXIT_FAILURE;
   }
   
/*   if(ftdi_usb_purge_rx_buffer(&ftdic) < 0)
   {
       fprintf(stderr,"Can't rx purge\n",ftdi_get_error_string(&ftdic));
       return EXIT_FAILURE;
       }*/
   if (outfile)
       if ((of = fopen(outfile,"w+")) == 0)
           fprintf(stderr,"Can't open logfile %s, Error %s\n", outfile, strerror(errno));
   if (of)
       if (setvbuf(of, NULL, _IOFBF , 1<<16) == 0)
           outputFile = of;
   signal(SIGINT, sigintHandler);
   
   err = ftdi_readstream(&ftdic, readCallback, NULL, 8, 256);
   if (err < 0 && !exitRequested)
       exit(1);
   
   if (outputFile) {
       fclose(outputFile);
       outputFile = NULL;
   }
   fprintf(stderr, "Capture ended.\n");
   
   if (ftdi_set_bitmode(&ftdic,  0xff, BITMODE_RESET) < 0)
   {
       fprintf(stderr,"Can't set synchronous fifo mode\n",ftdi_get_error_string(&ftdic));
       return EXIT_FAILURE;
   }
   ftdi_usb_close(&ftdic);
   ftdi_deinit(&ftdic);
   signal(SIGINT, SIG_DFL);
   if (check && outfile)
   {
       if ((outputFile = fopen(outfile,"r")) == 0)
       {
           fprintf(stderr,"Can't open logfile %s, Error %s\n", outfile, strerror(errno));
           return EXIT_FAILURE;
       }
       check_outfile(descstring);
       fclose(outputFile);
   }
   else if (check)
       fprintf(stderr,"%d errors of %d blocks (%Le), %d (%Le) blocks skipped\n",
               n_err, blocks, (long double)n_err/(long double) blocks,
               skips, (long double)skips/(long double) blocks);
   exit (0);
}

void check_outfile(char *descstring)
{
    if(strcmp(descstring,"FT2232HTEST") == 0)
    {
       char buf0[1024];
       char buf1[1024];
       char bufr[1024];
       char *pa, *pb, *pc;
       unsigned int num_lines = 0, line_num = 1;
       int err_count = 0;
       unsigned int num_start, num_end;

       unsigned int block[4];
       pa = buf0;
       pb = buf1;
       pc = buf0;
       if(fgets(pa, 1023, outputFile) == NULL)
       {
           fprintf(stderr,"Empty output file\n");
           return;
       }
       while(fgets(pb, 1023, outputFile) != NULL)
       {
           num_lines++;
           unsigned int num_save = num_start;
           if( sscanf(pa,"%6u%94s%6u",&num_start, bufr,&num_end) !=3)
           {
               fprintf(stdout,"Format doesn't match at line %8d \"%s",
                       num_lines, pa);
               err_count++;
               line_num = num_save +2;
           }
           else
           {
               if ((num_start+1)%100000 != num_end)
               {
                   if (err_count < 20)
                       fprintf(stdout,"Malformed line %d \"%s\"\n", 
                               num_lines, pa);
                   err_count++;
               }
               else if(num_start != line_num)
               {
                   if (err_count < 20)
                       fprintf(stdout,"Skipping from %d to %d\n", 
                               line_num, num_start);
                   err_count++;
                  
               }
               line_num = num_end;
           }
           pa = pb;
           pb = pc;
           pc = pa;
       }
       if(err_count)
           fprintf(stdout,"\n%d errors of %d data sets %f\n", err_count, num_lines, (double) err_count/(double)num_lines);
       else
           fprintf(stdout,"No errors for %d lines\n",num_lines);
   }
    else if(strcmp(descstring,"LLBBC10") == 0)
    { 
        uint32_t block0[4];
        uint32_t block1[4];
        uint32_t *pa = block0;
        uint32_t *pb = block1;
        uint32_t *pc = block0;
        uint32_t start= 0;
        uint32_t nread = 0;
        int expect = 1;
        int n_shown = 0;
        int n_errors = 0;
        if (fread(pa, sizeof(uint32_t), 4,outputFile) < 4)
        {
            fprintf(stderr,"Empty result file\n");
            return;
        }
        while(fread(pb, sizeof(uint32_t), 4,outputFile) != 0)
        {
            blocks++;
            nread =  pa[0];
            if(start>0 && (nread != start))
            {
                if(n_shown < 30)
                {
                    fprintf(stderr, "Skip %7d blocks from 0x%08x to 0x%08x at blocks %10d \n",
                            (nread-start)/0x4000, start -0x4000, nread, blocks);
                    n_shown ++;
                }
                n_errors++;
            }
            else if (n_shown >0) 
                n_shown--; 
            start = nread + 0x4000;
            pa = pb;
            pb = pc;
            pc = pa;
        }
        if(n_errors)
            fprintf(stderr, "%d blocks wrong from %d blocks read\n",
                    n_errors, blocks);
        else
            fprintf(stderr, "%d blocks all fine\n",blocks);
    }
}
Commit	Line	Data
40da63b1 UB	1	/* stream_test.c
	2	*
	3	* Test reading from FT2232H in synchronous FIFO mode.
	4	*
	5	* The FT2232H must supply data due to an appropriate circuit
	6	*
	7	* To check for skipped block with appended code,
	8	* a structure as follows is assumed
	9	* 1* uint32_t num (incremented in 0x4000 steps)
	10	* 3* uint32_t dont_care
	11	*
	12	* After start, data will be read in streaming until the program is aborted
	13	* Progess information wil be printed out
	14	* If a filename is given on the command line, the data read will be
	15	* written to that file
	16	*
	17	*/
	18	#include <stdio.h>
	19	#include <stdlib.h>
	20	#include <stdint.h>
	21	#include <string.h>
	22	#include <unistd.h>
	23	#include <getopt.h>
	24	#include <signal.h>
	25	#include <errno.h>
	26	#include <ftdi.h>
	27	void check_outfile(char *);
	28
	29	static FILE *outputFile;
	30
	31	static int check = 1;
	32	static int exitRequested = 0;
	33	/*
	34	* sigintHandler --
	35	*
	36	* SIGINT handler, so we can gracefully exit when the user hits ctrl-C.
	37	*/
	38
	39	static void
	40	sigintHandler(int signum)
	41	{
	42	exitRequested = 1;
	43	}
	44
	45	static void
	46	usage(const char *argv0)
	47	{
	48	fprintf(stderr,
	49	"Usage: %s [tions...] \n"
	50	"Test streaming read from FT2232H\n"
	51	"[-P string] only look for product with given string"
	52	"[-n] don't check for special block structure"
	53	"\n"
	54	"If some filename is given, write data read to that file\n"
	55	"Progess information is printed each second\n"
	56	"Abort with ^C\n"
	57	"\n"
	58	"Options:\n"
	59	"\n"
	60	"Copyright (C) 2009 Micah Dowty <micah@navi.cx>\n",
	61	"Adapted for use with libftdi (C) 2010 Uwe Bonnes <bon@elektron.ikp.physik.tu-darmstadt.de>\n",
	62	argv0);
	63	exit(1);
	64	}
65
66	static uint32_t start = 0;
67	static uint32_t offset = 0;
68	static uint32_t blocks = 0;
69	static uint32_t skips = 0;
70	static uint32_t n_err = 0;
71	static int
72	readCallback(uint8_t buffer, int length, FTDIProgressInfo progress, void *userdata)
73	{
74	if (length)
75	{
76	if (check)
77	{
78	int i,rem;
79	uint32_t num;
80	for (i= offset; i<length-16; i+=16)
81	{
82	num = (uint32_t) (buffer+i);
83	if (start && (num != start +0x4000))
84	{
85	uint32_t delta = ((num-start)/0x4000)-1;
86	fprintf(stderr, "Skip %7d blocks from 0x%08x to 0x%08x at blocks %10d \n",
87	delta, start -0x4000, num, blocks);
88	n_err++;
89	skips += delta;
90	}
91	blocks ++;
92	start = num;
93	}
94	rem = length -i;
95	if (rem >3)
96	{
97	num = (uint32_t) (buffer+i);
98	if (start && (num != start +0x4000))
99	{
100	uint32_t delta = ((num-start)/0x4000)-1;
101	fprintf(stderr, "Skip %7d blocks from 0x%08x to 0x%08x at blocks %10d \n",
102	delta, start -0x4000, num, blocks);
103	n_err++;
104	skips += delta;
105	}
106	start = num;
107	}
108	else if (rem)
109	start += 0x4000;
110	if (rem != 0);
111	{
112	blocks ++;
113	offset = 16-rem;
114	}
115	}
116	if (outputFile)
117	{
118	if (fwrite(buffer, length, 1, outputFile) != 1)
119	{
120	perror("Write error");
121	return 1;
122	}
123	}
124	}
125	if (progress)
126	{
127	fprintf(stderr, "%10.02fs total time %9.3f MiB captured %7.1f kB/s curr rate %7.1f kB/s totalrate \n",
128	progress->totalTime,
129	progress->current.totalBytes / (1024.0 * 1024.0),
130	progress->currentRate / 1024.0,
131	progress->totalRate / 1024.0);
132	}
133	return exitRequested ? 1 : 0;
134	}
135
136	int main(int argc, char **argv)
137	{
138	struct ftdi_context ftdic;
139	int err, c;
140	FILE *of = NULL;
141	char const *outfile = 0;
142	outputFile =0;
143	exitRequested = 0;
144	char *descstring = NULL;
145	int option_index;
146	static struct option long_options[] = {{NULL},};
147
148	while ((c = getopt_long(argc, argv, "P:n", long_options, &option_index)) !=- 1)
149	switch (c)
150	{
151	case -1:
152	break;
153	case 'P':
154	descstring = optarg;
155	break;
156	case 'n':
157	check = 0;
158	break;
159	default:
160	usage(argv[0]);
161	}
162
163	if (optind == argc - 1)
164	{
165	// Exactly one extra argument- a dump file
166	outfile = argv[optind];
167	}
168	else if (optind < argc)
169	{
170	// Too many extra args
171	usage(argv[0]);
172	}
173
174	if (ftdi_init(&ftdic) < 0)
175	{
176	fprintf(stderr, "ftdi_init failed\n");
177	return EXIT_FAILURE;
178	}
179
180	if (ftdi_set_interface(&ftdic, INTERFACE_A) < 0)
181	{
182	fprintf(stderr, "ftdi_set_interface failed\n");
183	return EXIT_FAILURE;
184	}
185
186	if (ftdi_usb_open_desc(&ftdic, 0x0403, 0x6010, descstring, NULL) < 0)
187	{
188	fprintf(stderr,"Can't open ftdi device: %s\n",ftdi_get_error_string(&ftdic));
189	return EXIT_FAILURE;
190	}
191
192	/* A timeout value of 1 results in may skipped blocks */
193	if(ftdi_set_latency_timer(&ftdic, 2))
194	{
195	fprintf(stderr,"Can't set latency\n",ftdi_get_error_string(&ftdic));
196	return EXIT_FAILURE;
197	}
198
199	/* if(ftdi_usb_purge_rx_buffer(&ftdic) < 0)
200	{
201	fprintf(stderr,"Can't rx purge\n",ftdi_get_error_string(&ftdic));
202	return EXIT_FAILURE;
203	}*/
204	if (outfile)
205	if ((of = fopen(outfile,"w+")) == 0)
206	fprintf(stderr,"Can't open logfile %s, Error %s\n", outfile, strerror(errno));
207	if (of)
208	if (setvbuf(of, NULL, _IOFBF , 1<<16) == 0)
209	outputFile = of;
210	signal(SIGINT, sigintHandler);
211
212	err = ftdi_readstream(&ftdic, readCallback, NULL, 8, 256);
213	if (err < 0 && !exitRequested)
214	exit(1);
215
216	if (outputFile) {
217	fclose(outputFile);
218	outputFile = NULL;
219	}
220	fprintf(stderr, "Capture ended.\n");
221
222	if (ftdi_set_bitmode(&ftdic, 0xff, BITMODE_RESET) < 0)
223	{
224	fprintf(stderr,"Can't set synchronous fifo mode\n",ftdi_get_error_string(&ftdic));
225	return EXIT_FAILURE;
226	}
227	ftdi_usb_close(&ftdic);
228	ftdi_deinit(&ftdic);
229	signal(SIGINT, SIG_DFL);
230	if (check && outfile)
231	{
232	if ((outputFile = fopen(outfile,"r")) == 0)
233	{
234	fprintf(stderr,"Can't open logfile %s, Error %s\n", outfile, strerror(errno));
235	return EXIT_FAILURE;
236	}
237	check_outfile(descstring);
238	fclose(outputFile);
239	}
240	else if (check)
241	fprintf(stderr,"%d errors of %d blocks (%Le), %d (%Le) blocks skipped\n",
242	n_err, blocks, (long double)n_err/(long double) blocks,
243	skips, (long double)skips/(long double) blocks);
244	exit (0);
245	}
246
247	void check_outfile(char *descstring)
248	{
249	if(strcmp(descstring,"FT2232HTEST") == 0)
250	{
251	char buf0[1024];
252	char buf1[1024];
253	char bufr[1024];
254	char pa, pb, *pc;
255	unsigned int num_lines = 0, line_num = 1;
256	int err_count = 0;
257	unsigned int num_start, num_end;
258
259	unsigned int block[4];
260	pa = buf0;
261	pb = buf1;
262	pc = buf0;
263	if(fgets(pa, 1023, outputFile) == NULL)
264	{
265	fprintf(stderr,"Empty output file\n");
266	return;
267	}
268	while(fgets(pb, 1023, outputFile) != NULL)
269	{
270	num_lines++;
271	unsigned int num_save = num_start;
272	if( sscanf(pa,"%6u%94s%6u",&num_start, bufr,&num_end) !=3)
273	{
274	fprintf(stdout,"Format doesn't match at line %8d \"%s",
275	num_lines, pa);
276	err_count++;
277	line_num = num_save +2;
278	}
279	else
280	{
281	if ((num_start+1)%100000 != num_end)
282	{
283	if (err_count < 20)
284	fprintf(stdout,"Malformed line %d \"%s\"\n",
285	num_lines, pa);
286	err_count++;
287	}
288	else if(num_start != line_num)
289	{
290	if (err_count < 20)
291	fprintf(stdout,"Skipping from %d to %d\n",
292	line_num, num_start);
293	err_count++;
294
295	}
296	line_num = num_end;
297	}
298	pa = pb;
299	pb = pc;
300	pc = pa;
301	}
302	if(err_count)
303	fprintf(stdout,"\n%d errors of %d data sets %f\n", err_count, num_lines, (double) err_count/(double)num_lines);
304	else
305	fprintf(stdout,"No errors for %d lines\n",num_lines);
306	}
307	else if(strcmp(descstring,"LLBBC10") == 0)
308	{
309	uint32_t block0[4];
310	uint32_t block1[4];
311	uint32_t *pa = block0;
312	uint32_t *pb = block1;
313	uint32_t *pc = block0;
314	uint32_t start= 0;
315	uint32_t nread = 0;
316	int expect = 1;
317	int n_shown = 0;
318	int n_errors = 0;
319	if (fread(pa, sizeof(uint32_t), 4,outputFile) < 4)
320	{
321	fprintf(stderr,"Empty result file\n");
322	return;
323	}
324	while(fread(pb, sizeof(uint32_t), 4,outputFile) != 0)
325	{
326	blocks++;
327	nread = pa[0];
328	if(start>0 && (nread != start))
329	{
330	if(n_shown < 30)
331	{
332	fprintf(stderr, "Skip %7d blocks from 0x%08x to 0x%08x at blocks %10d \n",
333	(nread-start)/0x4000, start -0x4000, nread, blocks);
334	n_shown ++;
335	}
336	n_errors++;
337	}
338	else if (n_shown >0)
339	n_shown--;
340	start = nread + 0x4000;
341	pa = pb;
342	pb = pc;
343	pc = pa;
344	}
345	if(n_errors)
346	fprintf(stderr, "%d blocks wrong from %d blocks read\n",
347	n_errors, blocks);
348	else
349	fprintf(stderr, "%d blocks all fine\n",blocks);
350	}
351	}