Lines Matching +full:tx +full:- +full:device
1 // SPDX-License-Identifier: GPL-2.0-only
8 * Cross-compile with cross-gcc -I/path/to/cross-kernel/include
38 static const char *device = "/dev/spidev1.1"; variable
72 while (length-- > 0) { in hex_dump()
92 * Unescape - process hexadecimal escape character
93 * converts shell input "\x23" -> 0x23
119 static void transfer(int fd, uint8_t const *tx, uint8_t const *rx, size_t len) in transfer() argument
124 .tx_buf = (unsigned long)tx, in transfer()
157 hex_dump(tx, len, 32, "TX"); in transfer()
177 printf("Usage: %s [-2348CDFHILMNORSZbdilopsvw]\n", prog); in print_usage()
178 puts("general device settings:\n" in print_usage()
179 " -D --device device to use (default /dev/spidev1.1)\n" in print_usage()
180 " -s --speed max speed (Hz)\n" in print_usage()
181 " -d --delay delay (usec)\n" in print_usage()
182 " -w --word-delay word delay (usec)\n" in print_usage()
183 " -l --loop loopback\n" in print_usage()
185 " -H --cpha clock phase\n" in print_usage()
186 " -O --cpol clock polarity\n" in print_usage()
187 " -F --rx-cpha-flip flip CPHA on Rx only xfer\n" in print_usage()
189 " -2 --dual dual transfer\n" in print_usage()
190 " -4 --quad quad transfer\n" in print_usage()
191 " -8 --octal octal transfer\n" in print_usage()
192 " -3 --3wire SI/SO signals shared\n" in print_usage()
193 " -Z --3wire-hiz high impedance turnaround\n" in print_usage()
195 " -i --input input data from a file (e.g. \"test.bin\")\n" in print_usage()
196 " -o --output output data to a file (e.g. \"results.bin\")\n" in print_usage()
197 " -p Send data (e.g. \"1234\\xde\\xad\")\n" in print_usage()
198 " -S --size transfer size\n" in print_usage()
199 " -I --iter iterations\n" in print_usage()
201 " -b --bpw bits per word\n" in print_usage()
202 " -L --lsb least significant bit first\n" in print_usage()
203 " -C --cs-high chip select active high\n" in print_usage()
204 " -N --no-cs no chip select\n" in print_usage()
205 " -R --ready slave pulls low to pause\n" in print_usage()
206 " -M --mosi-idle-low leave mosi line low when idle\n" in print_usage()
208 " -v --verbose Verbose (show tx buffer)\n"); in print_usage()
216 { "device", 1, 0, 'D' }, in parse_opts()
219 { "word-delay", 1, 0, 'w' }, in parse_opts()
223 { "rx-cpha-flip", 0, 0, 'F' }, in parse_opts()
228 { "3wire-hiz", 0, 0, 'Z' }, in parse_opts()
235 { "cs-high", 0, 0, 'C' }, in parse_opts()
236 { "no-cs", 0, 0, 'N' }, in parse_opts()
238 { "mosi-idle-low", 0, 0, 'M' }, in parse_opts()
247 if (c == -1) in parse_opts()
252 device = optarg; in parse_opts()
343 uint8_t *tx; in transfer_escaped_string() local
346 tx = malloc(size); in transfer_escaped_string()
347 if (!tx) in transfer_escaped_string()
348 pabort("can't allocate tx buffer"); in transfer_escaped_string()
354 size = unescape((char *)tx, str, size); in transfer_escaped_string()
355 transfer(fd, tx, rx, size); in transfer_escaped_string()
357 free(tx); in transfer_escaped_string()
365 uint8_t *tx; in transfer_file() local
368 if (stat(filename, &sb) == -1) in transfer_file()
375 tx = malloc(sb.st_size); in transfer_file()
376 if (!tx) in transfer_file()
377 pabort("can't allocate tx buffer"); in transfer_file()
383 bytes = read(tx_fd, tx, sb.st_size); in transfer_file()
387 transfer(fd, tx, rx, sb.st_size); in transfer_file()
389 free(tx); in transfer_file()
401 rx_rate = ((_read_count - prev_read_count) * 8) / (interval*1000.0); in show_transfer_rate()
402 tx_rate = ((_write_count - prev_write_count) * 8) / (interval*1000.0); in show_transfer_rate()
404 printf("rate: tx %.1fkbps, rx %.1fkbps\n", rx_rate, tx_rate); in show_transfer_rate()
412 uint8_t *tx; in transfer_buf() local
416 tx = malloc(len); in transfer_buf()
417 if (!tx) in transfer_buf()
418 pabort("can't allocate tx buffer"); in transfer_buf()
420 tx[i] = random(); in transfer_buf()
426 transfer(fd, tx, rx, len); in transfer_buf()
432 if (memcmp(tx, rx, len)) { in transfer_buf()
434 hex_dump(tx, len, 32, "TX"); in transfer_buf()
441 free(tx); in transfer_buf()
453 pabort("only one of -p and --input may be selected"); in main()
455 fd = open(device, O_RDWR); in main()
457 pabort("can't open device"); in main()
465 if (ret == -1) in main()
468 /* RD is read what mode the device actually is in */ in main()
470 if (ret == -1) in main()
477 printf("WARNING device does not support requested mode 0x%x\n", in main()
484 if (ret == -1) in main()
488 if (ret == -1) in main()
495 if (ret == -1) in main()
499 if (ret == -1) in main()
515 while (iterations-- > 0) { in main()
521 if (current.tv_sec - last_stat.tv_sec > interval) { in main()
526 printf("total: tx %.1fKB, rx %.1fKB\n", in main()