diff options
Diffstat (limited to 'recipes/u-boot/u-boot-2009.11/at91/0009-cmd_debug.c-Add-a-generic-function-for-debug-vars.patch')
| -rw-r--r-- | recipes/u-boot/u-boot-2009.11/at91/0009-cmd_debug.c-Add-a-generic-function-for-debug-vars.patch | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/recipes/u-boot/u-boot-2009.11/at91/0009-cmd_debug.c-Add-a-generic-function-for-debug-vars.patch b/recipes/u-boot/u-boot-2009.11/at91/0009-cmd_debug.c-Add-a-generic-function-for-debug-vars.patch new file mode 100644 index 0000000000..34828ebaaf --- /dev/null +++ b/recipes/u-boot/u-boot-2009.11/at91/0009-cmd_debug.c-Add-a-generic-function-for-debug-vars.patch @@ -0,0 +1,168 @@ +From f96a5c1051eac6c5782d775a97f9651c5e10b7af Mon Sep 17 00:00:00 2001 +From: Ulf Samuelsson <ulf.samuelsson@atmel.com> +Date: Sun, 14 Mar 2010 00:03:14 +0100 +Subject: [PATCH] cmd_debug.c: Add a generic function for debug vars + +This introduces a way for a module to register a debug variable. +The debug command can then be used to turn on/off the debug +variable or set it to a level +* 0 (off) +* 1 (on) +* 2 (verbose) + +The value of all debug variables can be listed by just typing "debug" + +module will use the debug level for its debug variable +to determine debug verbosity. + +Signed-off-by: Ulf Samuelsson <ulf.samuelsson@atmel.com> +--- + common/cmd_debug.c | 136 ++++++++++++++++++++++++++++++++++++++++++++++++++++ + 1 files changed, 136 insertions(+), 0 deletions(-) + create mode 100644 common/cmd_debug.c + +diff --git a/common/cmd_debug.c b/common/cmd_debug.c +new file mode 100644 +index 0000000..99f05a2 +--- /dev/null ++++ b/common/cmd_debug.c +@@ -0,0 +1,136 @@ ++/* ++ * (C) Copyright 2010 ++ * Ulf Samuelsson <ulf.samuelsson@atmel.com> ++ * ++ * See file CREDITS for list of people who contributed to this ++ * project. ++ * ++ * 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, or (at your option) any later version. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ * ++ * You should have received a copy of the GNU General Public License ++ * along with this program; if not, write to the Free Software ++ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, ++ * MA 02111-1307 USA ++ */ ++ ++#include <common.h> ++#include <command.h> ++#include <debug.h> ++ ++#undef DEBUG ++#if defined(DEBUG) ++#define pr_debug(fmt, args...) printf(fmt, ##args) ++#else ++#define pr_debug(...) do { } while(0) ++#endif ++ ++static struct debug_flag debug = { ++ .debug = 0, ++ .name = "all", ++ .next = NULL, ++}; ++struct debug_flag *dbg_vars = &debug; ++ ++static char *debug_variable (const char *s) ++{ ++ struct debug_flag *vars; ++ vars = dbg_vars; ++ while(vars != NULL) { ++ if (strcmp (s, vars->name) == 0) { ++ return &vars->debug; ++ } ++ vars = vars->next; ++ } ++ return NULL; ++} ++ ++static int debug_level (const char *s) ++{ ++ if (strcmp (s, "0") == 0) { ++ return 0; ++ } else if (strcmp (s, "off") == 0) { ++ return 0; ++ } else if (strcmp (s, "1") == 0) { ++ return 1; ++ } else if (strcmp (s, "on") == 0) { ++ return 1; ++ } else if (strcmp (s, "2") == 0) { ++ return 2; ++ } else { ++ return -1; ++ } ++} ++ ++int do_debug (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) ++{ ++ int value; ++ char *p; ++ struct debug_flag *dbg; ++ pr_debug("Arg count = %d\n",argc); ++ for (value = 0; value < argc; value++) { ++ pr_debug("argv[%d] = \"%s\"\n",value,argv[value]); ++ } ++ value = 1; /* Standard value, if we do not have a second parameter */ ++ switch (argc) { ++ case 3: /* on / off */ ++ value = debug_level(argv[2]); ++ if(value < 0) { ++ printf("Illegal debug variable: %s\n",p); ++ return -1; ++ } ++ ++ case 2: ++ p = debug_variable (argv[1]); ++ if(p == NULL) { ++ printf("Illegal debug variable: %s\n",p); ++ return -1; ++ } ++ if(p == &debug.debug) { /* Set all debug variables */ ++ dbg = dbg_vars; ++ while(dbg != NULL) { ++ dbg->debug = value; ++ dbg = dbg->next; ++ } ++ } ++ *p = value; ++ break; ++ default: ++ printf ("Usage:\n%s\n", cmdtp->usage); ++ printf ("Valid are: \n"); ++ dbg = dbg_vars; ++ while(dbg != NULL) { ++ printf("\t%s\t = %d\n",dbg->name, dbg->debug); ++ dbg = dbg->next; ++ } ++ return 1; ++ } ++ return 0; ++} ++ ++void register_debug_variable(struct debug_flag *dbg) ++{ ++ struct debug_flag *vars; ++ vars = dbg_vars; ++ pr_debug("Registering \"%s_debug\" = %d\n",dbg->name,dbg->debug); ++ while(vars->next != NULL) { ++ vars = vars->next; ++ } ++ vars->next = dbg; ++ dbg->next = NULL; ++} ++ ++ ++U_BOOT_CMD( ++ debug, 3, 1, do_debug, ++ "debug\t- enable or disable debug\n", ++ "<var> [on|off|0|1|2]\n" ++ " - enable or disable debug" ++); +-- +1.6.0.2 + |