356 lines
10 KiB
C
356 lines
10 KiB
C
/****************************************************************************
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* apps/nshlib/dbg_dbgcmds.c
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*
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* Copyright (C) 2008-2009, 2011-2012 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <sys/types.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include "nsh.h"
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#include "nsh_console.h"
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/****************************************************************************
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* Definitions
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****************************************************************************/
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/****************************************************************************
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* Private Types
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****************************************************************************/
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struct dbgmem_s
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{
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bool dm_write; /* true: perfrom write operation */
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void *dm_addr; /* Address to access */
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uint32_t dm_value; /* Value to write */
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unsigned int dm_count; /* The number of bytes to access */
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};
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/****************************************************************************
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* Private Function Prototypes
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****************************************************************************/
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/****************************************************************************
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* Private Data
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****************************************************************************/
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/****************************************************************************
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* Public Data
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****************************************************************************/
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: mem_parse
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****************************************************************************/
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int mem_parse(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv,
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struct dbgmem_s *mem)
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{
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char *pcvalue = strchr(argv[1], '=');
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unsigned long lvalue = 0;
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/* Check if we are writing a value */
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if (pcvalue)
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{
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*pcvalue = '\0';
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pcvalue++;
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lvalue = (unsigned long)strtol(pcvalue, NULL, 16);
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if (lvalue > 0xffffffff)
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{
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return -EINVAL;
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}
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mem->dm_write = true;
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mem->dm_value = (uint32_t)lvalue;
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}
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else
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{
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mem->dm_write = false;
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mem->dm_value = 0;
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}
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/* Get the address to be accessed */
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mem->dm_addr = (void*)((uintptr_t)strtol(argv[1], NULL, 16));
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/* Get the number of bytes to access */
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if (argc > 2)
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{
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mem->dm_count = (unsigned int)strtol(argv[2], NULL, 16);
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}
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else
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{
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mem->dm_count = 1;
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}
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return OK;
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}
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: cmd_mb
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****************************************************************************/
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#ifndef CONFIG_NSH_DISABLE_MB
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int cmd_mb(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
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{
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struct dbgmem_s mem;
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volatile uint8_t *ptr;
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int ret;
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int i;
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ret = mem_parse(vtbl, argc, argv, &mem);
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if (ret == 0)
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{
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/* Loop for the number of requested bytes */
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for (i = 0, ptr = (volatile uint8_t*)mem.dm_addr; i < mem.dm_count; i++, ptr++)
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{
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/* Print the value at the address */
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nsh_output(vtbl, " %p = 0x%02x", ptr, *ptr);
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/* Are we supposed to write a value to this address? */
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if (mem.dm_write)
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{
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/* Yes, was the supplied value within range? */
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if (mem.dm_value > 0x000000ff)
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{
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nsh_output(vtbl, g_fmtargrange, argv[0]);
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return ERROR;
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}
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/* Write the value and re-read the address so that we print its
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* current value (if the address is a process address, then the
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* value read might not necessarily be the value written).
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*/
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*ptr = (uint8_t)mem.dm_value;
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nsh_output(vtbl, " -> 0x%02x", *ptr);
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}
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/* Make sure we end it with a newline */
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nsh_output(vtbl, "\n", *ptr);
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}
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}
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return ret;
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}
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#endif
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/****************************************************************************
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* Name: cmd_mh
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****************************************************************************/
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#ifndef CONFIG_NSH_DISABLE_MH
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int cmd_mh(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
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{
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struct dbgmem_s mem;
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volatile uint16_t *ptr;
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int ret;
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int i;
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ret = mem_parse(vtbl, argc, argv, &mem);
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if (ret == 0)
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{
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/* Loop for the number of requested bytes */
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for (i = 0, ptr = (volatile uint16_t*)mem.dm_addr; i < mem.dm_count; i += 2, ptr++)
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{
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/* Print the value at the address */
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nsh_output(vtbl, " %p = 0x%04x", ptr, *ptr);
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/* Are we supposed to write a value to this address? */
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if (mem.dm_write)
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{
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/* Yes, was the supplied value within range? */
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if (mem.dm_value > 0x0000ffff)
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{
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nsh_output(vtbl, g_fmtargrange, argv[0]);
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return ERROR;
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}
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/* Write the value and re-read the address so that we print its
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* current value (if the address is a process address, then the
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* value read might not necessarily be the value written).
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*/
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*ptr = (uint16_t)mem.dm_value;
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nsh_output(vtbl, " -> 0x%04x", *ptr);
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}
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/* Make sure we end it with a newline */
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nsh_output(vtbl, "\n", *ptr);
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}
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}
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return ret;
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}
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#endif
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/****************************************************************************
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* Name: cmd_mw
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****************************************************************************/
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#ifndef CONFIG_NSH_DISABLE_MW
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int cmd_mw(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
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{
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struct dbgmem_s mem;
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volatile uint32_t *ptr;
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int ret;
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int i;
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ret = mem_parse(vtbl, argc, argv, &mem);
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if (ret == 0)
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{
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/* Loop for the number of requested bytes */
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for (i = 0, ptr = (volatile uint32_t*)mem.dm_addr; i < mem.dm_count; i += 4, ptr++)
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{
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/* Print the value at the address */
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nsh_output(vtbl, " %p = 0x%08x", ptr, *ptr);
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/* Are we supposed to write a value to this address? */
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if (mem.dm_write)
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{
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/* Write the value and re-read the address so that we print its
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* current value (if the address is a process address, then the
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* value read might not necessarily be the value written).
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*/
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*ptr = mem.dm_value;
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nsh_output(vtbl, " -> 0x%08x", *ptr);
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}
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/* Make sure we end it with a newline */
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nsh_output(vtbl, "\n", *ptr);
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}
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}
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return ret;
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}
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#endif
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/****************************************************************************
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* Name: nsh_dumpbuffer
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****************************************************************************/
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void nsh_dumpbuffer(FAR struct nsh_vtbl_s *vtbl, const char *msg,
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const uint8_t *buffer, ssize_t nbytes)
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{
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char line[128];
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int ch;
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int i;
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int j;
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nsh_output(vtbl, "%s:\n", msg);
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for (i = 0; i < nbytes; i += 16)
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{
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sprintf(line, "%04x: ", i);
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for ( j = 0; j < 16; j++)
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{
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if (i + j < nbytes)
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{
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sprintf(&line[strlen(line)], "%02x ", buffer[i+j] );
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}
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else
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{
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strcpy(&line[strlen(line)], " ");
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}
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}
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for ( j = 0; j < 16; j++)
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{
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if (i + j < nbytes)
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{
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ch = buffer[i+j];
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sprintf(&line[strlen(line)], "%c", ch >= 0x20 && ch <= 0x7e ? ch : '.');
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}
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}
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nsh_output(vtbl, "%s\n", line);
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}
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}
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/****************************************************************************
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* Name: cmd_xd
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****************************************************************************/
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#ifndef CONFIG_NSH_DISABLE_XD
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int cmd_xd(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
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{
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FAR char *addr;
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FAR char *endptr;
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int nbytes;
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addr = (char*)((uintptr_t)strtol(argv[1], &endptr, 16));
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if (argv[0][0] == '\0' || *endptr != '\0')
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{
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return ERROR;
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}
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nbytes = (int)strtol(argv[2], &endptr, 0);
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if (argv[0][0] == '\0' || *endptr != '\0' || nbytes < 0)
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{
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return ERROR;
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}
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nsh_dumpbuffer(vtbl, "Hex dump", (uint8_t*)addr, nbytes);
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return OK;
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}
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#endif
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