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-rw-r--r--tools/spi/spidev_test.c36
1 files changed, 23 insertions, 13 deletions
diff --git a/tools/spi/spidev_test.c b/tools/spi/spidev_test.c
index 135b3f592b83..f9d2957e538b 100644
--- a/tools/spi/spidev_test.c
+++ b/tools/spi/spidev_test.c
@@ -249,13 +249,30 @@ static void parse_opts(int argc, char *argv[])
}
}
+static void transfer_escaped_string(int fd, char *str)
+{
+ size_t size = strlen(str + 1);
+ 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);
+}
+
int main(int argc, char *argv[])
{
int ret = 0;
int fd;
- uint8_t *tx;
- uint8_t *rx;
- int size;
parse_opts(argc, argv);
@@ -300,17 +317,10 @@ int main(int argc, char *argv[])
printf("bits per word: %d\n", bits);
printf("max speed: %d Hz (%d KHz)\n", speed, speed/1000);
- if (input_tx) {
- size = strlen(input_tx+1);
- tx = malloc(size);
- rx = malloc(size);
- size = unescape((char *)tx, input_tx, size);
- transfer(fd, tx, rx, size);
- free(rx);
- free(tx);
- } else {
+ if (input_tx)
+ transfer_escaped_string(fd, input_tx);
+ else
transfer(fd, default_tx, default_rx, sizeof(default_tx));
- }
close(fd);