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/*
* Copyright (c) 2006-2015 Marvell International Ltd.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* Description: This file implements debug related functions.
*/
#include <linux/printk.h>
#include <linux/slab.h>
#include <linux/string.h>
#include "mwl_debug.h"
/* CONSTANTS AND MACROS
*/
#define WLDBG_CLASSES ( \
DBG_CLASS_PANIC | \
DBG_CLASS_ERROR | \
DBG_CLASS_WARNING | \
DBG_CLASS_INFO | \
DBG_CLASS_DATA | \
DBG_CLASS_ENTER | \
DBG_CLASS_EXIT)
#define PRT_8BYTES "0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x\n"
/* PRIVATE VARIABLES
*/
static u32 dbg_levels;
/* PUBLIC FUNCTION DEFINITION
*/
void mwl_debug_prt(u32 classlevel, const char *func, const char *format, ...)
{
unsigned char *debug_string;
u32 level = classlevel & 0x0000ffff;
u32 class = classlevel & 0xffff0000;
va_list a_start;
if (classlevel != 0) {
if ((class & WLDBG_CLASSES) != class)
return;
if ((level & dbg_levels) != level) {
if (class != DBG_CLASS_PANIC &&
class != DBG_CLASS_ERROR)
return;
}
}
debug_string = kmalloc(1024, GFP_ATOMIC);
if (!debug_string)
return;
if (format) {
va_start(a_start, format);
vsprintf(debug_string, format, a_start);
va_end(a_start);
} else {
debug_string[0] = '\0';
}
switch (class) {
case DBG_CLASS_ENTER:
pr_debug("Enter %s() ...\n", func);
break;
case DBG_CLASS_EXIT:
pr_debug("... Exit %s()\n", func);
break;
case DBG_CLASS_WARNING:
pr_debug("WARNING: ");
break;
case DBG_CLASS_ERROR:
pr_debug("ERROR: ");
break;
case DBG_CLASS_PANIC:
pr_debug("PANIC: ");
break;
default:
break;
}
if (strlen(debug_string) > 0) {
if (debug_string[strlen(debug_string) - 1] == '\n')
debug_string[strlen(debug_string) - 1] = '\0';
pr_debug("%s(): %s\n", func, debug_string);
}
kfree(debug_string);
}
void mwl_debug_prtdata(u32 classlevel, const char *func,
const void *data, int len, const char *format, ...)
{
unsigned char *dbg_string;
unsigned char dbg_data[16] = "";
unsigned char *memptr = (unsigned char *)data;
u32 level = classlevel & 0x0000ffff;
u32 class = classlevel & 0xffff0000;
int curr_byte = 0;
int num_bytes = 0;
int offset = 0;
va_list a_start;
if ((class & WLDBG_CLASSES) != class)
return;
if ((level & dbg_levels) != level)
return;
dbg_string = kmalloc(len + 1024, GFP_ATOMIC);
if (!dbg_string)
return;
if (format) {
va_start(a_start, format);
vsprintf(dbg_string, format, a_start);
va_end(a_start);
} else {
dbg_string[0] = '\0';
}
if (strlen(dbg_string) > 0) {
if (dbg_string[strlen(dbg_string) - 1] == '\n')
dbg_string[strlen(dbg_string) - 1] = '\0';
pr_debug("%s() %s\n", func, dbg_string);
} else {
pr_debug("%s()\n", func);
}
for (curr_byte = 0; curr_byte < len; curr_byte = curr_byte + 8) {
if ((curr_byte + 8) < len) {
pr_debug(PRT_8BYTES,
*(memptr + curr_byte + 0),
*(memptr + curr_byte + 1),
*(memptr + curr_byte + 2),
*(memptr + curr_byte + 3),
*(memptr + curr_byte + 4),
*(memptr + curr_byte + 5),
*(memptr + curr_byte + 6),
*(memptr + curr_byte + 7));
} else {
num_bytes = len - curr_byte;
offset = curr_byte;
for (curr_byte = 0; curr_byte < num_bytes;
curr_byte++) {
sprintf(dbg_data, "0x%02x ",
*(memptr + offset + curr_byte));
strcat(dbg_string, dbg_data);
}
pr_debug("%s\n", dbg_string);
break;
}
}
kfree(dbg_string);
}
void mwl_debug_dumpdata(const void *data, int len, char *marker)
{
unsigned char *memptr = (unsigned char *)data;
int curr_byte = 0;
int num_bytes = 0;
int offset = 0;
pr_debug("%s\n", marker);
for (curr_byte = 0; curr_byte < len; curr_byte = curr_byte + 8) {
if ((curr_byte + 8) < len) {
pr_debug(PRT_8BYTES,
*(memptr + curr_byte + 0),
*(memptr + curr_byte + 1),
*(memptr + curr_byte + 2),
*(memptr + curr_byte + 3),
*(memptr + curr_byte + 4),
*(memptr + curr_byte + 5),
*(memptr + curr_byte + 6),
*(memptr + curr_byte + 7));
} else {
num_bytes = len - curr_byte;
offset = curr_byte;
for (curr_byte = 0; curr_byte < num_bytes;
curr_byte++)
pr_debug("0x%02x ",
*(memptr + offset + curr_byte));
pr_debug("\n\n");
break;
}
}
}
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