dey-examples: upgrade spidev_test application
This commit updates the spidev_test application from Linux kernel upstream at /tools/spi/spidev_test.c adding support to new features commit: 9006a7b3220e7293ef8bc1ac9bba6c54411051c1 https://jira.digi.com/browse/DEL-4358 Signed-off-by: Arturo Buzarra <arturo.buzarra@digi.com>
This commit is contained in:
Arturo Buzarra
parent
91698844c0
commit
ce709e3cfc
|
|
@ -15,9 +15,13 @@
|
|||
#include <unistd.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <getopt.h>
|
||||
#include <fcntl.h>
|
||||
#include <time.h>
|
||||
#include <sys/ioctl.h>
|
||||
#include <linux/ioctl.h>
|
||||
#include <sys/stat.h>
|
||||
#include <linux/types.h>
|
||||
#include <linux/spi/spidev.h>
|
||||
|
||||
|
|
@ -30,62 +34,163 @@ static void pabort(const char *s)
|
|||
}
|
||||
|
||||
static const char *device = "/dev/spidev1.1";
|
||||
static uint8_t mode;
|
||||
static uint32_t mode;
|
||||
static uint8_t bits = 8;
|
||||
static char *input_file;
|
||||
static char *output_file;
|
||||
static uint32_t speed = 500000;
|
||||
static uint16_t delay;
|
||||
static int verbose;
|
||||
static int transfer_size;
|
||||
static int iterations;
|
||||
static int interval = 5; /* interval in seconds for showing transfer rate */
|
||||
|
||||
static void transfer(int fd)
|
||||
uint8_t default_tx[] = {
|
||||
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
|
||||
0x40, 0x00, 0x00, 0x00, 0x00, 0x95,
|
||||
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
|
||||
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
|
||||
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
|
||||
0xF0, 0x0D,
|
||||
};
|
||||
|
||||
uint8_t default_rx[ARRAY_SIZE(default_tx)] = {0, };
|
||||
char *input_tx;
|
||||
|
||||
static void hex_dump(const void *src, size_t length, size_t line_size,
|
||||
char *prefix)
|
||||
{
|
||||
int i = 0;
|
||||
const unsigned char *address = src;
|
||||
const unsigned char *line = address;
|
||||
unsigned char c;
|
||||
|
||||
printf("%s | ", prefix);
|
||||
while (length-- > 0) {
|
||||
printf("%02X ", *address++);
|
||||
if (!(++i % line_size) || (length == 0 && i % line_size)) {
|
||||
if (length == 0) {
|
||||
while (i++ % line_size)
|
||||
printf("__ ");
|
||||
}
|
||||
printf(" | "); /* right close */
|
||||
while (line < address) {
|
||||
c = *line++;
|
||||
printf("%c", (c < 33 || c == 255) ? 0x2E : c);
|
||||
}
|
||||
printf("\n");
|
||||
if (length > 0)
|
||||
printf("%s | ", prefix);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Unescape - process hexadecimal escape character
|
||||
* converts shell input "\x23" -> 0x23
|
||||
*/
|
||||
static int unescape(char *_dst, char *_src, size_t len)
|
||||
{
|
||||
int ret = 0;
|
||||
int match;
|
||||
char *src = _src;
|
||||
char *dst = _dst;
|
||||
unsigned int ch;
|
||||
|
||||
while (*src) {
|
||||
if (*src == '\\' && *(src+1) == 'x') {
|
||||
match = sscanf(src + 2, "%2x", &ch);
|
||||
if (!match)
|
||||
pabort("malformed input string");
|
||||
|
||||
src += 4;
|
||||
*dst++ = (unsigned char)ch;
|
||||
} else {
|
||||
*dst++ = *src++;
|
||||
}
|
||||
ret++;
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void transfer(int fd, uint8_t const *tx, uint8_t const *rx, size_t len)
|
||||
{
|
||||
int ret;
|
||||
uint8_t tx[] = {
|
||||
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
|
||||
0x40, 0x00, 0x00, 0x00, 0x00, 0x95,
|
||||
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
|
||||
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
|
||||
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
|
||||
0xDE, 0xAD, 0xBE, 0xEF, 0xBA, 0xAD,
|
||||
0xF0, 0x0D,
|
||||
};
|
||||
uint8_t rx[ARRAY_SIZE(tx)] = {0, };
|
||||
int out_fd;
|
||||
struct spi_ioc_transfer tr = {
|
||||
.tx_buf = (unsigned long)tx,
|
||||
.rx_buf = (unsigned long)rx,
|
||||
.len = ARRAY_SIZE(tx),
|
||||
.len = len,
|
||||
.delay_usecs = delay,
|
||||
.speed_hz = speed,
|
||||
.bits_per_word = bits,
|
||||
};
|
||||
|
||||
if (mode & SPI_TX_QUAD)
|
||||
tr.tx_nbits = 4;
|
||||
else if (mode & SPI_TX_DUAL)
|
||||
tr.tx_nbits = 2;
|
||||
if (mode & SPI_RX_QUAD)
|
||||
tr.rx_nbits = 4;
|
||||
else if (mode & SPI_RX_DUAL)
|
||||
tr.rx_nbits = 2;
|
||||
if (!(mode & SPI_LOOP)) {
|
||||
if (mode & (SPI_TX_QUAD | SPI_TX_DUAL))
|
||||
tr.rx_buf = 0;
|
||||
else if (mode & (SPI_RX_QUAD | SPI_RX_DUAL))
|
||||
tr.tx_buf = 0;
|
||||
}
|
||||
|
||||
ret = ioctl(fd, SPI_IOC_MESSAGE(1), &tr);
|
||||
if (ret < 0)
|
||||
if (ret < 1)
|
||||
pabort("can't send spi message");
|
||||
|
||||
for (ret = 0; ret < ARRAY_SIZE(tx); ret++) {
|
||||
if (!(ret % 6))
|
||||
puts("");
|
||||
printf("%.2X ", rx[ret]);
|
||||
if (verbose)
|
||||
hex_dump(tx, len, 32, "TX");
|
||||
|
||||
if (output_file) {
|
||||
out_fd = open(output_file, O_WRONLY | O_CREAT | O_TRUNC, 0666);
|
||||
if (out_fd < 0)
|
||||
pabort("could not open output file");
|
||||
|
||||
ret = write(out_fd, rx, len);
|
||||
if (ret != len)
|
||||
pabort("not all bytes written to output file");
|
||||
|
||||
close(out_fd);
|
||||
}
|
||||
puts("");
|
||||
|
||||
if (verbose)
|
||||
hex_dump(rx, len, 32, "RX");
|
||||
}
|
||||
|
||||
void print_usage(const char *prog)
|
||||
static void print_usage(const char *prog)
|
||||
{
|
||||
printf("Usage: %s [-DsbdlHOLC3]\n", prog);
|
||||
printf("Usage: %s [-DsbdlHOLC3vpNR24SI]\n", prog);
|
||||
puts(" -D --device device to use (default /dev/spidev1.1)\n"
|
||||
" -s --speed max speed (Hz)\n"
|
||||
" -d --delay delay (usec)\n"
|
||||
" -b --bpw bits per word \n"
|
||||
" -b --bpw bits per word\n"
|
||||
" -i --input input data from a file (e.g. \"test.bin\")\n"
|
||||
" -o --output output data to a file (e.g. \"results.bin\")\n"
|
||||
" -l --loop loopback\n"
|
||||
" -H --cpha clock phase\n"
|
||||
" -O --cpol clock polarity\n"
|
||||
" -L --lsb least significant bit first\n"
|
||||
" -C --cs-high chip select active high\n"
|
||||
" -3 --3wire SI/SO signals shared\n");
|
||||
" -3 --3wire SI/SO signals shared\n"
|
||||
" -v --verbose Verbose (show tx buffer)\n"
|
||||
" -p Send data (e.g. \"1234\\xde\\xad\")\n"
|
||||
" -N --no-cs no chip select\n"
|
||||
" -R --ready slave pulls low to pause\n"
|
||||
" -2 --dual dual transfer\n"
|
||||
" -4 --quad quad transfer\n"
|
||||
" -S --size transfer size\n"
|
||||
" -I --iter iterations\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
void parse_opts(int argc, char *argv[])
|
||||
static void parse_opts(int argc, char *argv[])
|
||||
{
|
||||
while (1) {
|
||||
static const struct option lopts[] = {
|
||||
|
|
@ -93,6 +198,8 @@ void parse_opts(int argc, char *argv[])
|
|||
{ "speed", 1, 0, 's' },
|
||||
{ "delay", 1, 0, 'd' },
|
||||
{ "bpw", 1, 0, 'b' },
|
||||
{ "input", 1, 0, 'i' },
|
||||
{ "output", 1, 0, 'o' },
|
||||
{ "loop", 0, 0, 'l' },
|
||||
{ "cpha", 0, 0, 'H' },
|
||||
{ "cpol", 0, 0, 'O' },
|
||||
|
|
@ -101,11 +208,17 @@ void parse_opts(int argc, char *argv[])
|
|||
{ "3wire", 0, 0, '3' },
|
||||
{ "no-cs", 0, 0, 'N' },
|
||||
{ "ready", 0, 0, 'R' },
|
||||
{ "dual", 0, 0, '2' },
|
||||
{ "verbose", 0, 0, 'v' },
|
||||
{ "quad", 0, 0, '4' },
|
||||
{ "size", 1, 0, 'S' },
|
||||
{ "iter", 1, 0, 'I' },
|
||||
{ NULL, 0, 0, 0 },
|
||||
};
|
||||
int c;
|
||||
|
||||
c = getopt_long(argc, argv, "D:s:d:b:lHOLC3NR", lopts, NULL);
|
||||
c = getopt_long(argc, argv, "D:s:d:b:i:o:lHOLC3NR24p:vS:I:",
|
||||
lopts, NULL);
|
||||
|
||||
if (c == -1)
|
||||
break;
|
||||
|
|
@ -123,6 +236,12 @@ void parse_opts(int argc, char *argv[])
|
|||
case 'b':
|
||||
bits = atoi(optarg);
|
||||
break;
|
||||
case 'i':
|
||||
input_file = optarg;
|
||||
break;
|
||||
case 'o':
|
||||
output_file = optarg;
|
||||
break;
|
||||
case 'l':
|
||||
mode |= SPI_LOOP;
|
||||
break;
|
||||
|
|
@ -144,14 +263,142 @@ void parse_opts(int argc, char *argv[])
|
|||
case 'N':
|
||||
mode |= SPI_NO_CS;
|
||||
break;
|
||||
case 'v':
|
||||
verbose = 1;
|
||||
break;
|
||||
case 'R':
|
||||
mode |= SPI_READY;
|
||||
break;
|
||||
case 'p':
|
||||
input_tx = optarg;
|
||||
break;
|
||||
case '2':
|
||||
mode |= SPI_TX_DUAL;
|
||||
break;
|
||||
case '4':
|
||||
mode |= SPI_TX_QUAD;
|
||||
break;
|
||||
case 'S':
|
||||
transfer_size = atoi(optarg);
|
||||
break;
|
||||
case 'I':
|
||||
iterations = atoi(optarg);
|
||||
break;
|
||||
default:
|
||||
print_usage(argv[0]);
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (mode & SPI_LOOP) {
|
||||
if (mode & SPI_TX_DUAL)
|
||||
mode |= SPI_RX_DUAL;
|
||||
if (mode & SPI_TX_QUAD)
|
||||
mode |= SPI_RX_QUAD;
|
||||
}
|
||||
}
|
||||
|
||||
static void transfer_escaped_string(int fd, char *str)
|
||||
{
|
||||
size_t size = strlen(str);
|
||||
uint8_t *tx;
|
||||
uint8_t *rx;
|
||||
|
||||
tx = malloc(size);
|
||||
if (!tx)
|
||||
pabort("can't allocate tx buffer");
|
||||
|
||||
rx = malloc(size);
|
||||
if (!rx)
|
||||
pabort("can't allocate rx buffer");
|
||||
|
||||
size = unescape((char *)tx, str, size);
|
||||
transfer(fd, tx, rx, size);
|
||||
free(rx);
|
||||
free(tx);
|
||||
}
|
||||
|
||||
static void transfer_file(int fd, char *filename)
|
||||
{
|
||||
ssize_t bytes;
|
||||
struct stat sb;
|
||||
int tx_fd;
|
||||
uint8_t *tx;
|
||||
uint8_t *rx;
|
||||
|
||||
if (stat(filename, &sb) == -1)
|
||||
pabort("can't stat input file");
|
||||
|
||||
tx_fd = open(filename, O_RDONLY);
|
||||
if (tx_fd < 0)
|
||||
pabort("can't open input file");
|
||||
|
||||
tx = malloc(sb.st_size);
|
||||
if (!tx)
|
||||
pabort("can't allocate tx buffer");
|
||||
|
||||
rx = malloc(sb.st_size);
|
||||
if (!rx)
|
||||
pabort("can't allocate rx buffer");
|
||||
|
||||
bytes = read(tx_fd, tx, sb.st_size);
|
||||
if (bytes != sb.st_size)
|
||||
pabort("failed to read input file");
|
||||
|
||||
transfer(fd, tx, rx, sb.st_size);
|
||||
free(rx);
|
||||
free(tx);
|
||||
close(tx_fd);
|
||||
}
|
||||
|
||||
static uint64_t _read_count;
|
||||
static uint64_t _write_count;
|
||||
|
||||
static void show_transfer_rate(void)
|
||||
{
|
||||
static uint64_t prev_read_count, prev_write_count;
|
||||
double rx_rate, tx_rate;
|
||||
|
||||
rx_rate = ((_read_count - prev_read_count) * 8) / (interval*1000.0);
|
||||
tx_rate = ((_write_count - prev_write_count) * 8) / (interval*1000.0);
|
||||
|
||||
printf("rate: tx %.1fkbps, rx %.1fkbps\n", rx_rate, tx_rate);
|
||||
|
||||
prev_read_count = _read_count;
|
||||
prev_write_count = _write_count;
|
||||
}
|
||||
|
||||
static void transfer_buf(int fd, int len)
|
||||
{
|
||||
uint8_t *tx;
|
||||
uint8_t *rx;
|
||||
int i;
|
||||
|
||||
tx = malloc(len);
|
||||
if (!tx)
|
||||
pabort("can't allocate tx buffer");
|
||||
for (i = 0; i < len; i++)
|
||||
tx[i] = random();
|
||||
|
||||
rx = malloc(len);
|
||||
if (!rx)
|
||||
pabort("can't allocate rx buffer");
|
||||
|
||||
transfer(fd, tx, rx, len);
|
||||
|
||||
_write_count += len;
|
||||
_read_count += len;
|
||||
|
||||
if (mode & SPI_LOOP) {
|
||||
if (memcmp(tx, rx, len)) {
|
||||
fprintf(stderr, "transfer error !\n");
|
||||
hex_dump(tx, len, 32, "TX");
|
||||
hex_dump(rx, len, 32, "RX");
|
||||
exit(1);
|
||||
}
|
||||
}
|
||||
|
||||
free(rx);
|
||||
free(tx);
|
||||
}
|
||||
|
||||
int main(int argc, char *argv[])
|
||||
|
|
@ -168,11 +415,11 @@ int main(int argc, char *argv[])
|
|||
/*
|
||||
* spi mode
|
||||
*/
|
||||
ret = ioctl(fd, SPI_IOC_WR_MODE, &mode);
|
||||
ret = ioctl(fd, SPI_IOC_WR_MODE32, &mode);
|
||||
if (ret == -1)
|
||||
pabort("can't set spi mode");
|
||||
|
||||
ret = ioctl(fd, SPI_IOC_RD_MODE, &mode);
|
||||
ret = ioctl(fd, SPI_IOC_RD_MODE32, &mode);
|
||||
if (ret == -1)
|
||||
pabort("can't get spi mode");
|
||||
|
||||
|
|
@ -198,11 +445,37 @@ int main(int argc, char *argv[])
|
|||
if (ret == -1)
|
||||
pabort("can't get max speed hz");
|
||||
|
||||
printf("spi mode: %d\n", mode);
|
||||
printf("spi mode: 0x%x\n", mode);
|
||||
printf("bits per word: %d\n", bits);
|
||||
printf("max speed: %d Hz (%d KHz)\n", speed, speed/1000);
|
||||
|
||||
transfer(fd);
|
||||
if (input_tx && input_file)
|
||||
pabort("only one of -p and --input may be selected");
|
||||
|
||||
if (input_tx)
|
||||
transfer_escaped_string(fd, input_tx);
|
||||
else if (input_file)
|
||||
transfer_file(fd, input_file);
|
||||
else if (transfer_size) {
|
||||
struct timespec last_stat;
|
||||
|
||||
clock_gettime(CLOCK_MONOTONIC, &last_stat);
|
||||
|
||||
while (iterations-- > 0) {
|
||||
struct timespec current;
|
||||
|
||||
transfer_buf(fd, transfer_size);
|
||||
|
||||
clock_gettime(CLOCK_MONOTONIC, ¤t);
|
||||
if (current.tv_sec - last_stat.tv_sec > interval) {
|
||||
show_transfer_rate();
|
||||
last_stat = current;
|
||||
}
|
||||
}
|
||||
printf("total: tx %.1fKB, rx %.1fKB\n",
|
||||
_write_count/1024.0, _read_count/1024.0);
|
||||
} else
|
||||
transfer(fd, default_tx, default_rx, sizeof(default_tx));
|
||||
|
||||
close(fd);
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue