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| author | Geert Uytterhoeven <geert+renesas@glider.be> | 2020-04-16 12:18:35 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2020-04-16 13:54:45 +0100 |
| commit | 896fa735084e4a9160f8f17d75d2899fb38a6215 (patch) | |
| tree | 6a53cb496fa2a59fe046337c967d69bbee92afbf /tools/spi | |
| parent | 66ec7b3bc9c043518da828cd84aefe6242943a97 (diff) | |
| download | linux-stable-896fa735084e4a9160f8f17d75d2899fb38a6215.tar.gz linux-stable-896fa735084e4a9160f8f17d75d2899fb38a6215.tar.bz2 linux-stable-896fa735084e4a9160f8f17d75d2899fb38a6215.zip | |
spi: spidev_test: Add support for Octal mode data transfers
Add support for octal transfers using the -8/--octal command line
parameter.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20200416101835.14573-3-geert+renesas@glider.be
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'tools/spi')
| -rw-r--r-- | tools/spi/spidev_test.c | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/tools/spi/spidev_test.c b/tools/spi/spidev_test.c index 27967dd90f8f..eec23fa693bd 100644 --- a/tools/spi/spidev_test.c +++ b/tools/spi/spidev_test.c @@ -128,18 +128,22 @@ static void transfer(int fd, uint8_t const *tx, uint8_t const *rx, size_t len) .bits_per_word = bits, }; - if (mode & SPI_TX_QUAD) + if (mode & SPI_TX_OCTAL) + tr.tx_nbits = 8; + else if (mode & SPI_TX_QUAD) tr.tx_nbits = 4; else if (mode & SPI_TX_DUAL) tr.tx_nbits = 2; - if (mode & SPI_RX_QUAD) + if (mode & SPI_RX_OCTAL) + tr.rx_nbits = 8; + else 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)) + if (mode & (SPI_TX_OCTAL | SPI_TX_QUAD | SPI_TX_DUAL)) tr.rx_buf = 0; - else if (mode & (SPI_RX_QUAD | SPI_RX_DUAL)) + else if (mode & (SPI_RX_OCTAL | SPI_RX_QUAD | SPI_RX_DUAL)) tr.tx_buf = 0; } @@ -187,6 +191,7 @@ static void print_usage(const char *prog) " -R --ready slave pulls low to pause\n" " -2 --dual dual transfer\n" " -4 --quad quad transfer\n" + " -8 --octal octal transfer\n" " -S --size transfer size\n" " -I --iter iterations\n"); exit(1); @@ -213,13 +218,14 @@ static void parse_opts(int argc, char *argv[]) { "dual", 0, 0, '2' }, { "verbose", 0, 0, 'v' }, { "quad", 0, 0, '4' }, + { "octal", 0, 0, '8' }, { "size", 1, 0, 'S' }, { "iter", 1, 0, 'I' }, { NULL, 0, 0, 0 }, }; int c; - c = getopt_long(argc, argv, "D:s:d:b:i:o:lHOLC3NR24p:vS:I:", + c = getopt_long(argc, argv, "D:s:d:b:i:o:lHOLC3NR248p:vS:I:", lopts, NULL); if (c == -1) @@ -280,6 +286,9 @@ static void parse_opts(int argc, char *argv[]) case '4': mode |= SPI_TX_QUAD; break; + case '8': + mode |= SPI_TX_OCTAL; + break; case 'S': transfer_size = atoi(optarg); break; @@ -295,6 +304,8 @@ static void parse_opts(int argc, char *argv[]) mode |= SPI_RX_DUAL; if (mode & SPI_TX_QUAD) mode |= SPI_RX_QUAD; + if (mode & SPI_TX_OCTAL) + mode |= SPI_RX_OCTAL; } } |