shell: Add i2c and spi commands

This adds some commands that are usefull for debugging simple serial
interfaces.

Even if they are a complete re-implementation, the i2c* commands use a
simmilar call like the Linux i2c tools.

cpukit/Makefile.am

@@ -1494,6 +1494,10 @@ librtemscpu_a_SOURCES += libmisc/shell/login_prompt.c
 librtemscpu_a_SOURCES += libmisc/shell/login_check.c
 librtemscpu_a_SOURCES += libmisc/shell/fdisk.c
 librtemscpu_a_SOURCES += libmisc/shell/main_rtc.c
+librtemscpu_a_SOURCES += libmisc/shell/main_spi.c
+librtemscpu_a_SOURCES += libmisc/shell/main_i2cdetect.c
+librtemscpu_a_SOURCES += libmisc/shell/main_i2cset.c
+librtemscpu_a_SOURCES += libmisc/shell/main_i2cget.c
 librtemscpu_a_SOURCES += libmisc/shell/dd-args.c
 librtemscpu_a_SOURCES += libmisc/shell/main_dd.c
 librtemscpu_a_SOURCES += libmisc/shell/dd-conv.c

cpukit/include/rtems/shellconfig.h

@@ -78,6 +78,10 @@ extern rtems_shell_cmd_t rtems_shell_DF_Command;
 extern rtems_shell_cmd_t rtems_shell_MD5_Command;
 
 extern rtems_shell_cmd_t rtems_shell_RTC_Command;
+extern rtems_shell_cmd_t rtems_shell_SPI_Command;
+extern rtems_shell_cmd_t rtems_shell_I2CDETECT_Command;
+extern rtems_shell_cmd_t rtems_shell_I2CGET_Command;
+extern rtems_shell_cmd_t rtems_shell_I2CSET_Command;
 
 extern rtems_shell_cmd_t rtems_shell_SHUTDOWN_Command;
 extern rtems_shell_cmd_t rtems_shell_CPUINFO_Command;
@@ -521,6 +525,30 @@ extern rtems_shell_alias_t * const rtems_shell_Initial_aliases[];
       &rtems_shell_RTC_Command,
     #endif
 
+    #if (defined(CONFIGURE_SHELL_COMMANDS_ALL) \
+          && !defined(CONFIGURE_SHELL_NO_COMMAND_SPI)) \
+        || defined(CONFIGURE_SHELL_COMMAND_SPI)
+      &rtems_shell_SPI_Command,
+    #endif
+
+    #if (defined(CONFIGURE_SHELL_COMMANDS_ALL) \
+          && !defined(CONFIGURE_SHELL_NO_COMMAND_I2CDETECT)) \
+        || defined(CONFIGURE_SHELL_COMMAND_I2CDETECT)
+      &rtems_shell_I2CDETECT_Command,
+    #endif
+
+    #if (defined(CONFIGURE_SHELL_COMMANDS_ALL) \
+          && !defined(CONFIGURE_SHELL_NO_COMMAND_I2CGET)) \
+        || defined(CONFIGURE_SHELL_COMMAND_I2CGET)
+      &rtems_shell_I2CGET_Command,
+    #endif
+
+    #if (defined(CONFIGURE_SHELL_COMMANDS_ALL) \
+          && !defined(CONFIGURE_SHELL_NO_COMMAND_I2CSET)) \
+        || defined(CONFIGURE_SHELL_COMMAND_I2CSET)
+      &rtems_shell_I2CSET_Command,
+    #endif
+
     /*
      *  System related commands
      */

cpukit/libmisc/shell/main_i2cdetect.c

@@ -0,0 +1,107 @@
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (C) 2020 embedded brains GmbH.
+ *
+ * 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.
+ *
+ * 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.
+ */
+
+/*
+ * The command implemented here has a similar interface like the one from Linux
+ * i2c tools. Think of it as a heavily simplified version of them. Instead of
+ * the bus number they expect a bus path.
+ */
+
+#include <dev/i2c/i2c.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <rtems/shell.h>
+
+static const char rtems_i2cdetect_shell_usage [] =
+  "i2cdetect <I2C_BUS>\n"
+  "\ttry to detect i2c devices on the given bus\n";
+
+static int rtems_i2cdetect_shell_main(int argc, char *argv[])
+{
+  int fd;
+  int rv;
+  const char *bus;
+  const uint16_t first = 1;
+  const uint16_t last = 0x7f;
+  uint16_t current;
+
+  if (argc != 2 || strcmp(argv[1], "-h") == 0) {
+    printf(rtems_i2cdetect_shell_usage);
+    return 1;
+  }
+
+  bus = argv[1];
+  fd = open(bus, O_RDWR);
+  if (fd < 0) {
+    perror("Couldn't open bus");
+    return 1;
+  }
+
+  printf("    x0 x1 x2 x3 x4 x5 x6 x7 x8 x9 xA xB xC xD xE xF\n"
+         "0x    ");
+  for (current = first; current <= last; ++current) {
+    i2c_msg msg = {
+      .addr = current,
+      .flags = 0,
+      .len = 0,
+      .buf = NULL,
+    };
+
+    struct i2c_rdwr_ioctl_data payload = {
+      .msgs = &msg,
+      .nmsgs = 1,
+    };
+
+    if ((current & 0x0F) == 0) {
+      printf("\n%1xx ", current >> 4);
+    }
+
+    rv = ioctl(fd, I2C_RDWR, &payload);
+    if (rv < 0) {
+      if (errno != EIO) {
+        perror("ioctl failed");
+      }
+      printf(" --");
+    } else {
+      printf(" %02x", current);
+    }
+  }
+  printf("\n");
+  close(fd);
+
+  return 0;
+}
+
+rtems_shell_cmd_t rtems_shell_I2CDETECT_Command = {
+  .name = "i2cdetect",
+  .usage = rtems_i2cdetect_shell_usage,
+  .topic = "misc",
+  .command = rtems_i2cdetect_shell_main,
+};

cpukit/libmisc/shell/main_i2cget.c

@@ -0,0 +1,145 @@
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (C) 2020 embedded brains GmbH.
+ *
+ * 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.
+ *
+ * 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.
+ */
+
+/*
+ * The command implemented here has a similar interface like the one from Linux
+ * i2c tools. Think of it as a heavily simplified version of them. Instead of
+ * the bus number they expect a bus path.
+ *
+ * Additionally the i2cget has a continuous read mode that isn't available on
+ * Linux but does something similar to i2cdump.
+ */
+
+#include <dev/i2c/i2c.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <rtems/shell.h>
+
+static const char rtems_i2cget_shell_usage [] =
+  "i2cget <I2C_BUS> <CHIP-ADDRESS> <DATA-ADDRESS> [<NR-BYTES>]\n"
+  "\tGet one or more bytes from an EEPROM like i2c device.\n"
+  "\tNote that multiple bytes will be read in continuous mode.\n";
+
+static int read_bytes(
+  int fd,
+  uint16_t i2c_address,
+  uint8_t data_address,
+  uint16_t nr_bytes
+)
+{
+  int rv;
+  uint8_t value[nr_bytes];
+  i2c_msg msgs[] = {{
+    .addr = i2c_address,
+    .flags = 0,
+    .buf = &data_address,
+    .len = 1,
+  }, {
+    .addr = i2c_address,
+    .flags = I2C_M_RD,
+    .buf = value,
+    .len = nr_bytes,
+  }};
+  struct i2c_rdwr_ioctl_data payload = {
+    .msgs = msgs,
+    .nmsgs = sizeof(msgs)/sizeof(msgs[0]),
+  };
+  uint16_t i;
+
+  rv = ioctl(fd, I2C_RDWR, &payload);
+  if (rv < 0) {
+    perror("ioctl failed");
+  } else {
+    for (i = 0; i < nr_bytes; ++i) {
+      printf("0x%02x ", value[i]);
+    }
+    printf("\n");
+  }
+
+  return rv;
+}
+
+static int rtems_i2cget_shell_main(int argc, char *argv[])
+{
+  int fd;
+  int rv;
+  const char *bus;
+  uint16_t chip_address;
+  uint8_t data_address;
+  uint16_t nr_bytes;
+
+  if (argc < 4 || argc > 5) {
+    printf(rtems_i2cget_shell_usage);
+    return 1;
+  }
+
+  errno = 0;
+  chip_address = (uint16_t) strtoul(argv[2], NULL, 0);
+  if (errno != 0) {
+    perror("Couldn't read chip address");
+    return 1;
+  }
+
+  errno = 0;
+  data_address = (uint8_t) strtoul(argv[3], NULL, 0);
+  if (errno != 0) {
+    perror("Couldn't read data address");
+    return 1;
+  }
+
+  nr_bytes = 1;
+  if (argc == 5) {
+    errno = 0;
+    nr_bytes = (uint16_t) strtoul(argv[4], NULL, 0);
+    if (errno != 0) {
+      perror("Couldn't read number of bytes");
+      return 1;
+    }
+  }
+
+  bus = argv[1];
+  fd = open(bus, O_RDWR);
+  if (fd < 0) {
+    perror("Couldn't open bus");
+    return 1;
+  }
+
+  rv = read_bytes(fd, chip_address, data_address, nr_bytes);
+
+  close(fd);
+
+  return rv;
+}
+
+rtems_shell_cmd_t rtems_shell_I2CGET_Command = {
+  .name = "i2cget",
+  .usage = rtems_i2cget_shell_usage,
+  .topic = "misc",
+  .command = rtems_i2cget_shell_main,
+};

cpukit/libmisc/shell/main_i2cset.c

@@ -0,0 +1,124 @@
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (C) 2020 embedded brains GmbH.
+ *
+ * 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.
+ *
+ * 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.
+ */
+
+/*
+ * The command implemented here has a similar interface like the one from Linux
+ * i2c tools. Think of it as a heavily simplified version of them. Instead of
+ * the bus number they expect a bus path.
+ *
+ * Additionally it is possible to write multiple values as a continuous write.
+ */
+
+#include <dev/i2c/i2c.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <rtems/shell.h>
+
+static const char rtems_i2cset_shell_usage [] =
+  "i2cset <I2C_BUS> <CHIP-ADDRESS> <DATA-ADDRESS> <VALUE> [<VALUE> [...]]\n"
+  "\tset one byte of an EEPROM like i2c device\n";
+
+static int
+rtems_i2cset_shell_main(int argc, char *argv[])
+{
+  int fd;
+  int rv;
+  const char *bus;
+  uint16_t chip_address;
+  /* Necessary: data-address and values. This will be a bit more. */
+  uint8_t writebuff[argc];
+  size_t len;
+  size_t i;
+  i2c_msg msgs[] = {{
+    .flags = 0,
+    .buf = writebuff,
+    .len = 0,
+  }};
+  struct i2c_rdwr_ioctl_data payload = {
+    .msgs = msgs,
+    .nmsgs = sizeof(msgs)/sizeof(msgs[0]),
+  };
+
+  if (argc < 5) {
+    printf(rtems_i2cset_shell_usage);
+    return 1;
+  }
+
+  errno = 0;
+  chip_address = (uint16_t) strtoul(argv[2], NULL, 0);
+  if (errno != 0) {
+    perror("Couldn't read CHIP_ADDRESS");
+    return 1;
+  }
+  msgs[0].addr = chip_address;
+
+  errno = 0;
+  writebuff[0] = (uint8_t) strtoul(argv[3], NULL, 0);
+  if (errno != 0) {
+    perror("Couldn't read DATA_ADDRESS");
+    return 1;
+  }
+
+  /* Read values starting from the fifth argument (index 4) */
+  i = 4;
+  len = 0;
+  while (i < argc) {
+    errno = 0;
+    writebuff[len + 1] = (uint8_t) strtoul(argv[i], NULL, 0);
+    if (errno != 0) {
+      perror("Couldn't read VALUE");
+      return 1;
+    }
+    ++i;
+    ++len;
+  }
+  msgs[0].len = len + 1; /* Don't forget address */
+
+  bus = argv[1];
+  fd = open(bus, O_RDWR);
+  if (fd < 0) {
+    perror("Couldn't open bus");
+    return 1;
+  }
+
+  rv = ioctl(fd, I2C_RDWR, &payload);
+  if (rv < 0) {
+    perror("ioctl failed");
+  }
+  close(fd);
+
+  return rv;
+}
+
+rtems_shell_cmd_t rtems_shell_I2CSET_Command = {
+  .name = "i2cset",
+  .usage = rtems_i2cset_shell_usage,
+  .topic = "misc",
+  .command = rtems_i2cset_shell_main,
+};

cpukit/libmisc/shell/main_spi.c

@@ -0,0 +1,157 @@
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (C) 2020 embedded brains GmbH.
+ *
+ * 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.
+ *
+ * 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.
+ */
+
+#include <dev/spi/spi.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <rtems/shell.h>
+
+static const char rtems_spi_shell_usage [] =
+  "simple SPI read / write\n"
+  "\n"
+  "spi [-loh] [-c <cs>] [-s <speed>] [-m <mode>] <SPI_BUS> xx [xx [..]]\n"
+  "    <SPI_BUS>  Bus device to use\n"
+  "    xx         Hex value of a byte to send\n"
+  "    -c <cs>    Use chip select <cs> (default: None)\n"
+  "    -m <mode>  Use SPI mode <mode> (default: 0)\n"
+  "    -l         Send LSB first\n"
+  "    -o         Use loopback mode\n"
+  "    -s <speed> Bus speed in hz\n"
+  "    -h         Print this help\n";
+
+static int rtems_spi_shell_main(int argc, char *argv[])
+{
+  uint8_t buffer[argc - 1];
+  size_t len = 0;
+  int i;
+  size_t j;
+  int rv;
+  int fd;
+  char *bus = NULL;
+  unsigned long mode;
+  spi_ioc_transfer msg = {
+    .len = 0,
+    .rx_buf = buffer,
+    .tx_buf = buffer,
+    .speed_hz = 100000,
+    .bits_per_word = 8,
+    .cs_change = true,
+    .mode = SPI_MODE_0 | SPI_NO_CS,
+  };
+
+  for (i = 1; i < argc; ++i) {
+    if (argv[i][0] == '-') {
+      switch (argv[i][1]) {
+      case ('c'):
+        errno = 0;
+        msg.mode &= ~SPI_NO_CS;
+        msg.cs = (uint8_t) strtoul(argv[i+1], NULL, 0);
+        ++i;
+        if (errno != 0) {
+          printf("Couldn't process chip select\n");
+          return 1;
+        }
+        break;
+      case ('m'):
+        errno = 0;
+        mode = strtoul(argv[i+1], NULL, 0);
+        ++i;
+        if (errno != 0 || mode > 3) {
+          printf("Couldn't process mode\n");
+          return 1;
+        }
+        msg.mode &= ~(SPI_CPOL | SPI_CPHA);
+        msg.mode |= mode;
+        break;
+      case ('s'):
+        errno = 0;
+        msg.speed_hz = (uint32_t) strtoul(argv[i+1], NULL, 0);
+        ++i;
+        if (errno != 0) {
+          printf("Couldn't process speed\n");
+          return 1;
+        }
+        break;
+      case ('l'):
+        msg.mode |= SPI_LSB_FIRST;
+        break;
+      case ('o'):
+        msg.mode |= SPI_LOOP;
+        break;
+      case ('h'):
+        /* fallthrough */
+      default:
+        printf(rtems_spi_shell_usage);
+        return 1;
+      }
+    } else if (bus == NULL) {
+      bus = argv[i];
+    } else {
+      errno = 0;
+      buffer[len] = (uint8_t) strtol(argv[i], NULL, 16);
+      if (errno != 0) {
+        printf("Couldn't process '%s'\n", argv[i]);
+        return 1;
+      }
+      ++len;
+    }
+  }
+
+  if (len == 0) {
+    printf("Nothing to do\n");
+    return 0;
+  }
+
+  fd = open(bus, O_RDWR);
+  if (fd < 0) {
+    perror("Couldn't open bus");
+    return 1;
+  }
+  msg.len = len;
+  rv = ioctl(fd, SPI_IOC_MESSAGE(1), &msg);
+  if (rv == -1) {
+    perror("Couldn't send the message");
+  } else {
+    printf("received:");
+    for (j = 0; j < len; ++j) {
+      printf(" %02x", buffer[j]);
+    }
+    printf("\n");
+  }
+  close(fd);
+
+  return 0;
+}
+
+rtems_shell_cmd_t rtems_shell_SPI_Command = {
+  .name = "spi",
+  .usage = rtems_spi_shell_usage,
+  .topic = "misc",
+  .command = rtems_spi_shell_main,
+};

spec/build/cpukit/objshell.yml

@@ -56,6 +56,9 @@ source:
 - cpukit/libmisc/shell/main_halt.c
 - cpukit/libmisc/shell/main_help.c
 - cpukit/libmisc/shell/main_hexdump.c
+- cpukit/libmisc/shell/main_i2cdetect.c
+- cpukit/libmisc/shell/main_i2cget.c
+- cpukit/libmisc/shell/main_i2cset.c
 - cpukit/libmisc/shell/main_id.c
 - cpukit/libmisc/shell/main_ln.c
 - cpukit/libmisc/shell/main_logoff.c
@@ -82,6 +85,7 @@ source:
 - cpukit/libmisc/shell/main_rtrace.c
 - cpukit/libmisc/shell/main_setenv.c
 - cpukit/libmisc/shell/main_sleep.c
+- cpukit/libmisc/shell/main_spi.c
 - cpukit/libmisc/shell/main_stackuse.c
 - cpukit/libmisc/shell/main_time.c
 - cpukit/libmisc/shell/main_top.c