aboutsummaryrefslogtreecommitdiff
path: root/apps/examples/can/can_main.c
diff options
context:
space:
mode:
Diffstat (limited to 'apps/examples/can/can_main.c')
-rw-r--r--apps/examples/can/can_main.c301
1 files changed, 0 insertions, 301 deletions
diff --git a/apps/examples/can/can_main.c b/apps/examples/can/can_main.c
deleted file mode 100644
index 482d3f438..000000000
--- a/apps/examples/can/can_main.c
+++ /dev/null
@@ -1,301 +0,0 @@
-/****************************************************************************
- * examples/can/can_main.c
- *
- * Copyright (C) 2011 Gregory Nutt. All rights reserved.
- * Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- * used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <nuttx/config.h>
-
-#include <sys/types.h>
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <debug.h>
-
-#include <nuttx/can.h>
-
-#include "can.h"
-
-/****************************************************************************
- * Pre-processor Definitions
- ****************************************************************************/
-
-#if defined(CONFIG_EXAMPLES_CAN_READONLY)
-# undef CONFIG_EXAMPLES_CAN_WRITEONLY
-# undef CONFIG_EXAMPLES_CAN_READWRITE
-# define CAN_OFLAGS O_RDONLY
-#elif defined(CONFIG_EXAMPLES_CAN_WRITEONLY)
-# undef CONFIG_EXAMPLES_CAN_READWRITE
-# define CAN_OFLAGS O_WRONLY
-#else
-# undef CONFIG_EXAMPLES_CAN_READWRITE
-# define CONFIG_EXAMPLES_CAN_READWRITE 1
-# define CAN_OFLAGS O_RDWR
-#endif
-
-#ifdef CONFIG_CAN_EXTID
-# define MAX_ID (1 << 29)
-#else
-# define MAX_ID (1 << 11)
-#endif
-
-/****************************************************************************
- * Private Types
- ****************************************************************************/
-
-/****************************************************************************
- * Private Function Prototypes
- ****************************************************************************/
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
-/****************************************************************************
- * Public Data
- ****************************************************************************/
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: can_main
- ****************************************************************************/
-
-int can_main(int argc, char *argv[])
-{
-#ifndef CONFIG_EXAMPLES_CAN_READONLY
- struct can_msg_s txmsg;
-#ifdef CONFIG_CAN_EXTID
- uint32_t msgid;
-#else
- uint16_t msgid;
-#endif
- int msgdlc;
- uint8_t msgdata;
-#endif
-
-#ifndef CONFIG_EXAMPLES_CAN_WRITEONLY
- struct can_msg_s rxmsg;
-#endif
-
- size_t msgsize;
- ssize_t nbytes;
-#if defined(CONFIG_NSH_BUILTIN_APPS) || defined(CONFIG_EXAMPLES_CAN_NMSGS)
- long nmsgs;
-#endif
-
- int fd;
- int errval = 0;
- int ret;
- int i;
-
- /* If this example is configured as an NX add-on, then limit the number of
- * samples that we collect before returning. Otherwise, we never return
- */
-
-#if defined(CONFIG_NSH_BUILTIN_APPS)
- nmsgs = CONFIG_EXAMPLES_CAN_NMSGS;
- if (argc > 1)
- {
- nmsgs = strtol(argv[1], NULL, 10);
- }
- message("can_main: nmsgs: %d\n", nmsgs);
-#elif defined(CONFIG_EXAMPLES_CAN_NMSGS)
- message("can_main: nmsgs: %d\n", CONFIG_EXAMPLES_CAN_NMSGS);
-#endif
-
- /* Initialization of the CAN hardware is performed by logic external to
- * this test.
- */
-
- message("can_main: Initializing external CAN device\n");
- ret = can_devinit();
- if (ret != OK)
- {
- message("can_main: can_devinit failed: %d\n", ret);
- errval = 1;
- goto errout;
- }
-
- /* Open the CAN device for reading */
-
- message("can_main: Hardware initialized. Opening the CAN device\n");
- fd = open(CONFIG_EXAMPLES_CAN_DEVPATH, CAN_OFLAGS);
- if (fd < 0)
- {
- message("can_main: open %s failed: %d\n",
- CONFIG_EXAMPLES_CAN_DEVPATH, errno);
- errval = 2;
- goto errout_with_dev;
- }
-
- /* Now loop the appropriate number of times, performing one loopback test
- * on each pass.
- */
-
-#ifndef CONFIG_EXAMPLES_CAN_READONLY
- msgdlc = 1;
- msgid = 1;
- msgdata = 0;
-#endif
-
-#if defined(CONFIG_NSH_BUILTIN_APPS)
- for (; nmsgs > 0; nmsgs--)
-#elif defined(CONFIG_EXAMPLES_CAN_NMSGS)
- for (nmsgs = 0; nmsgs < CONFIG_EXAMPLES_CAN_NMSGS; nmsgs++)
-#else
- for (;;)
-#endif
- {
- /* Flush any output before the loop entered or from the previous pass
- * through the loop.
- */
-
- msgflush();
-
- /* Construct the next TX message */
-
-#ifndef CONFIG_EXAMPLES_CAN_READONLY
- txmsg.cm_hdr.ch_id = msgid;
- txmsg.cm_hdr.ch_rtr = false;
- txmsg.cm_hdr.ch_dlc = msgdlc;
-#ifdef CONFIG_CAN_EXTID
- txmsg.cm_hdr.ch_extid = true;
-#endif
-
- for (i = 0; i < msgdlc; i++)
- {
- txmsg.cm_data[i] = msgdata + i;
- }
-
- /* Send the TX message */
-
- msgsize = CAN_MSGLEN(msgdlc);
- nbytes = write(fd, &txmsg, msgsize);
- if (nbytes != msgsize)
- {
- message("ERROR: write(%d) returned %d\n", msgsize, nbytes);
- errval = 3;
- goto errout_with_dev;
- }
-#endif
-
-#ifdef CONFIG_EXAMPLES_CAN_WRITEONLY
- message(" ID: %4d DLC: %d\n", msgid, msgdlc);
-#endif
-
- /* Read the RX message */
-
-#ifndef CONFIG_EXAMPLES_CAN_WRITEONLY
- msgsize = sizeof(struct can_msg_s);
- nbytes = read(fd, &rxmsg, msgsize);
- if (nbytes < CAN_MSGLEN(0) || nbytes > msgsize)
- {
- message("ERROR: read(%d) returned %d\n", msgsize, nbytes);
- errval = 4;
- goto errout_with_dev;
- }
-#endif
-
-#ifndef CONFIG_EXAMPLES_CAN_READONLY
- message(" ID: %4d DLC: %d\n", rxmsg.cm_hdr.id, rxmsg.cm_hdr.dlc);
-#endif
-
- /* Verify that the received messages are the same */
-
-#ifdef CONFIG_EXAMPLES_CAN_READWRITE
- if (memcmp(&txmsg.cm_hdr, &rxmsg.cm_hdr, sizeof(struct can_hdr_s)) != 0)
- {
- message("ERROR: Sent header does not match received header:\n");
- lib_dumpbuffer("Sent header", (FAR const uint8_t*)&txmsg.cm_hdr,
- sizeof(struct can_hdr_s));
- lib_dumpbuffer("Received header", (FAR const uint8_t*)&rxmsg.cm_hdr,
- sizeof(struct can_hdr_s));
- errval = 4;
- goto errout_with_dev;
- }
-
- if (memcmp(txmsg.cm_data, rxmsg.cm_data, msgdlc) != 0)
- {
- message("ERROR: Data does not match. DLC=%d\n", msgdlc);
- for (i = 0; i < msgdlc; i++)
- {
- message(" %d: TX %02x RX %02x\n", i, txmsg.cm_data[i], rxmsg.cm_data[i]);
- errval = 5;
- goto errout_with_dev;
- }
- }
-
- /* Report success */
-
- message(" ID: %4d DLC: %d -- OK\n", msgid, msgdlc);
-#endif
-
- /* Set up for the next pass */
-
-#ifndef CONFIG_EXAMPLES_CAN_READONLY
- msgdata += msgdlc;
-
- if (++msgid >= MAX_ID)
- {
- msgid = 1;
- }
-
- if (++msgdlc > CAN_MAXDATALEN)
- {
- msgdlc = 1;
- }
-#endif
- }
-
-errout_with_dev:
- close(fd);
-
-errout:
- message("Terminating!\n");
- msgflush();
- return errval;
-}
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-11 05:04:40 +0000