@@ -172,7 +172,7 @@ static void transfer(int fd, uint8_t const *tx, uint8_t const *rx, size_t len)
static void print_usage(const char *prog)
{
- printf("Usage: %s [-2348CDHILNORSbdilopsv]\n", prog);
+ printf("Usage: %s [-2348CDFHILMNORSZbdilopsv]\n", prog);
puts("general device settings:\n"
" -D --device device to use (default /dev/spidev1.1)\n"
" -s --speed max speed (Hz)\n"
@@ -181,11 +181,13 @@ static void print_usage(const char *prog)
"spi mode:\n"
" -H --cpha clock phase\n"
" -O --cpol clock polarity\n"
+ " -F --rx-cpha-flip flip CPHA on Rx only xfer\n"
"number of wires for transmission:\n"
" -2 --dual dual transfer\n"
" -4 --quad quad transfer\n"
" -8 --octal octal transfer\n"
" -3 --3wire SI/SO signals shared\n"
+ " -Z --3wire-hiz high impedance turnaround\n"
"data:\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"
@@ -198,6 +200,7 @@ static void print_usage(const char *prog)
" -C --cs-high chip select active high\n"
" -N --no-cs no chip select\n"
" -R --ready slave pulls low to pause\n"
+ " -M --mosi-idle-low leave mosi line low when idle\n"
"misc:\n"
" -v --verbose Verbose (show tx buffer)\n");
exit(1);
@@ -213,10 +216,12 @@ static void parse_opts(int argc, char *argv[])
{ "loop", 0, 0, 'l' },
{ "cpha", 0, 0, 'H' },
{ "cpol", 0, 0, 'O' },
+ { "rx-cpha-flip", 0, 0, 'F' },
{ "dual", 0, 0, '2' },
{ "quad", 0, 0, '4' },
{ "octal", 0, 0, '8' },
{ "3wire", 0, 0, '3' },
+ { "3wire-hiz", 0, 0, 'Z' },
{ "input", 1, 0, 'i' },
{ "output", 1, 0, 'o' },
{ "size", 1, 0, 'S' },
@@ -226,12 +231,13 @@ static void parse_opts(int argc, char *argv[])
{ "cs-high", 0, 0, 'C' },
{ "no-cs", 0, 0, 'N' },
{ "ready", 0, 0, 'R' },
+ { "mosi-idle-low", 0, 0, 'M' },
{ "verbose", 0, 0, 'v' },
{ NULL, 0, 0, 0 },
};
int c;
- c = getopt_long(argc, argv, "D:s:d:b:i:o:lHOLC3NR248p:vS:I:",
+ c = getopt_long(argc, argv, "D:s:d:b:i:o:lHOLC3ZFMNR248p:vS:I:",
lopts, NULL);
if (c == -1)
@@ -274,6 +280,15 @@ static void parse_opts(int argc, char *argv[])
case '3':
mode |= SPI_3WIRE;
break;
+ case 'Z':
+ mode |= SPI_3WIRE_HIZ;
+ break;
+ case 'F':
+ mode |= SPI_RX_CPHA_FLIP;
+ break;
+ case 'M':
+ mode |= SPI_MOSI_IDLE_LOW;
+ break;
case 'N':
mode |= SPI_NO_CS;
break;
Added the three missing spi mode bits SPI_3WIRE_HIZ, SPI_RX_CPHA_FLIP, and SPI_MOSI_IDLE_LOW. Signed-off-by: Boerge Struempfel <boerge.struempfel@gmail.com> --- tools/spi/spidev_test.c | 19 +++++++++++++++++-- 1 file changed, 17 insertions(+), 2 deletions(-)