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spi: spidev_test: Added verbose output

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Signed-off-by: Adrian Remonda <adrianremonda@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Adrian Remonda 2015-03-10 16:12:31 -04:00 • committed by Mark Brown
parent b78ce7ed54
commit 31a5c5a72b
1 changed files with 9 additions and 1 deletions
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10
Documentation/spi/spidev_test.c
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@ -35,6 +35,7 @@ static uint32_t mode;
static uint8_t bits = 8; static uint8_t bits = 8;
static uint32_t speed = 500000; static uint32_t speed = 500000;
static uint16_t delay; static uint16_t delay;
static int verbose;
static void hex_dump(const void *src, size_t length, size_t line_size, char *prefix) static void hex_dump(const void *src, size_t length, size_t line_size, char *prefix)
{ {
@ -104,6 +105,8 @@ static void transfer(int fd)
if (ret < 1) if (ret < 1)
pabort("can't send spi message"); pabort("can't send spi message");
if (verbose)
hex_dump(tx, ARRAY_SIZE(tx), 32, "TX");
hex_dump(rx, ARRAY_SIZE(rx), 32, "RX"); hex_dump(rx, ARRAY_SIZE(rx), 32, "RX");
} }
@ -120,6 +123,7 @@ static void print_usage(const char *prog)
" -L --lsb least significant bit first\n" " -L --lsb least significant bit first\n"
" -C --cs-high chip select active high\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"
" -N --no-cs no chip select\n" " -N --no-cs no chip select\n"
" -R --ready slave pulls low to pause\n" " -R --ready slave pulls low to pause\n"
" -2 --dual dual transfer\n" " -2 --dual dual transfer\n"
@ -144,12 +148,13 @@ static void parse_opts(int argc, char *argv[])
{ "no-cs", 0, 0, 'N' }, { "no-cs", 0, 0, 'N' },
{ "ready", 0, 0, 'R' }, { "ready", 0, 0, 'R' },
{ "dual", 0, 0, '2' }, { "dual", 0, 0, '2' },
{ "verbose", 0, 0, 'v' },
{ "quad", 0, 0, '4' }, { "quad", 0, 0, '4' },
{ NULL, 0, 0, 0 }, { NULL, 0, 0, 0 },
}; };
int c; int c;
c = getopt_long(argc, argv, "D:s:d:b:lHOLC3NR24", lopts, NULL); c = getopt_long(argc, argv, "D:s:d:b:lHOLC3NR24:v", lopts, NULL);
if (c == -1) if (c == -1)
break; break;
@ -188,6 +193,9 @@ static void parse_opts(int argc, char *argv[])
case 'N': case 'N':
mode |= SPI_NO_CS; mode |= SPI_NO_CS;
break; break;
case 'v':
verbose = 1;
break;
case 'R': case 'R':
mode |= SPI_READY; mode |= SPI_READY;
break; break;