From 102a0743326a03cd1a1202ceda21e175b7d3575c Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:20:52 +0000
Subject: [PATCH] add new system file
---
kernel/tools/spi/spidev_test.c | 56 ++++++++++++++++++++++++++++++++++----------------------
1 files changed, 34 insertions(+), 22 deletions(-)
diff --git a/kernel/tools/spi/spidev_test.c b/kernel/tools/spi/spidev_test.c
index 8c590cd..83844f8 100644
--- a/kernel/tools/spi/spidev_test.c
+++ b/kernel/tools/spi/spidev_test.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* SPI testing utility (using spidev driver)
*
* Copyright (c) 2007 MontaVista Software, Inc.
* Copyright (c) 2007 Anton Vorontsov <avorontsov@ru.mvista.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License.
*
* Cross-compile with cross-gcc -I/path/to/cross-kernel/include
*/
@@ -16,6 +13,7 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include <errno.h>
#include <getopt.h>
#include <fcntl.h>
#include <time.h>
@@ -29,7 +27,11 @@
static void pabort(const char *s)
{
- perror(s);
+ if (errno != 0)
+ perror(s);
+ else
+ printf("%s\n", s);
+
abort();
}
@@ -45,7 +47,7 @@
static int iterations;
static int interval = 5; /* interval in seconds for showing transfer rate */
-uint8_t default_tx[] = {
+static uint8_t default_tx[] = {
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0x40, 0x00, 0x00, 0x00, 0x00, 0x95,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
@@ -54,8 +56,8 @@
0xF0, 0x0D,
};
-uint8_t default_rx[ARRAY_SIZE(default_tx)] = {0, };
-char *input_tx;
+static uint8_t default_rx[ARRAY_SIZE(default_tx)] = {0, };
+static char *input_tx;
static void hex_dump(const void *src, size_t length, size_t line_size,
char *prefix)
@@ -73,12 +75,12 @@
while (i++ % line_size)
printf("__ ");
}
- printf(" | "); /* right close */
+ printf(" |");
while (line < address) {
c = *line++;
- printf("%c", (c < 33 || c == 255) ? 0x2E : c);
+ printf("%c", (c < 32 || c > 126) ? '.' : c);
}
- printf("\n");
+ printf("|\n");
if (length > 0)
printf("%s | ", prefix);
}
@@ -126,18 +128,22 @@
.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;
}
@@ -185,6 +191,7 @@
" -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);
@@ -211,13 +218,14 @@
{ "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)
@@ -278,6 +286,9 @@
case '4':
mode |= SPI_TX_QUAD;
break;
+ case '8':
+ mode |= SPI_TX_OCTAL;
+ break;
case 'S':
transfer_size = atoi(optarg);
break;
@@ -286,7 +297,6 @@
break;
default:
print_usage(argv[0]);
- break;
}
}
if (mode & SPI_LOOP) {
@@ -294,6 +304,8 @@
mode |= SPI_RX_DUAL;
if (mode & SPI_TX_QUAD)
mode |= SPI_RX_QUAD;
+ if (mode & SPI_TX_OCTAL)
+ mode |= SPI_RX_OCTAL;
}
}
@@ -408,6 +420,9 @@
parse_opts(argc, argv);
+ if (input_tx && input_file)
+ pabort("only one of -p and --input may be selected");
+
fd = open(device, O_RDWR);
if (fd < 0)
pabort("can't open device");
@@ -446,11 +461,8 @@
pabort("can't get max speed hz");
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);
-
- if (input_tx && input_file)
- pabort("only one of -p and --input may be selected");
+ printf("bits per word: %u\n", bits);
+ printf("max speed: %u Hz (%u kHz)\n", speed, speed/1000);
if (input_tx)
transfer_escaped_string(fd, input_tx);
--
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