/*
 * This file is part of the Black Magic Debug project.
 *
 * Copyright (C) 2011  Black Sphere Technologies Ltd.
 * Written by Gareth McMullin <gareth@blacksphere.co.nz>
 *
 * 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 3 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, see <http://www.gnu.org/licenses/>.
 */

#ifndef __GENERAL_H
#define __GENERAL_H

#if !defined(_GNU_SOURCE)
# define _GNU_SOURCE
#endif
#if !defined(__USE_MINGW_ANSI_STDIO)
# define __USE_MINGW_ANSI_STDIO 1
#endif
#include <stdint.h>
#include <stdbool.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <stddef.h>
#include <inttypes.h>
#include <sys/types.h>

#include "platform.h"
#include "platform_support.h"

extern uint32_t delay_cnt;

enum BMP_DEBUG {
	BMP_DEBUG_NONE   =  0,
	BMP_DEBUG_INFO   =  1,
	BMP_DEBUG_GDB    =  2,
	BMP_DEBUG_TARGET =  4,
	BMP_DEBUG_PROBE =  8,
	BMP_DEBUG_WIRE   = 0x10,
	BMP_DEBUG_MAX    = 0x20,
	BMP_DEBUG_STDOUT = 0x8000,
};

#define FREQ_FIXED 0xffffffff

#if PC_HOSTED == 0
/* For BMP debug output on a firmware BMP platform, using
 * BMP PC-Hosted is the preferred way. Printing DEBUG_WARN
 * and DEBUG_INFO is kept for comptibiluty.
 */
# if !defined(PLATFORM_PRINTF)
#  define PLATFORM_PRINTF printf
# endif
# if defined(ENABLE_DEBUG)
#  define DEBUG_WARN PLATFORM_PRINTF
#  define DEBUG_INFO PLATFORM_PRINTF
# else
#  define DEBUG_WARN(...) do {} while(0)
#  define DEBUG_INFO(...) do {} while(0)
# endif
# define DEBUG_GDB(...) do {} while(0)
# define DEBUG_TARGET(...) do {} while(0)
# define DEBUG_PROBE(...) do {} while(0)
# define DEBUG_WIRE(...) do {} while(0)
# define DEBUG_GDB_WIRE(...) do {} while(0)
#else
# include <stdarg.h>
extern int cl_debuglevel;

static inline void DEBUG_WARN(const char *format, ...)
{
	va_list ap;
    va_start(ap, format);
    vfprintf(stderr, format, ap);
    va_end(ap);
	return;
}

static inline void DEBUG_INFO(const char *format, ...)
{
	if (~cl_debuglevel & BMP_DEBUG_INFO)
		return;
	va_list ap;
    va_start(ap, format);
	if (cl_debuglevel & BMP_DEBUG_STDOUT)
		vfprintf(stdout, format, ap);
	else
		vfprintf(stderr, format, ap);
    va_end(ap);
	return;
}

static inline void DEBUG_GDB(const char *format, ...)
{
	if (~cl_debuglevel & BMP_DEBUG_GDB)
		return;
	va_list ap;
    va_start(ap, format);
    vfprintf(stderr, format, ap);
    va_end(ap);
	return;
}

static inline void DEBUG_GDB_WIRE(const char *format, ...)
{
	if ((cl_debuglevel & (BMP_DEBUG_GDB | BMP_DEBUG_WIRE)) !=
		(BMP_DEBUG_GDB | BMP_DEBUG_WIRE))
		return;
	va_list ap;
    va_start(ap, format);
    vfprintf(stderr, format, ap);
    va_end(ap);
	return;
}

static inline void DEBUG_TARGET(const char *format, ...)
{
	if (~cl_debuglevel & BMP_DEBUG_TARGET)
		return;
	va_list ap;
    va_start(ap, format);
    vfprintf(stderr, format, ap);
    va_end(ap);
	return;
}

static inline void DEBUG_PROBE(const char *format, ...)
{
	if (~cl_debuglevel & BMP_DEBUG_PROBE)
		return;
	va_list ap;
    va_start(ap, format);
    vfprintf(stderr, format, ap);
    va_end(ap);
	return;
}

static inline void DEBUG_WIRE(const char *format, ...)
{
	if (~cl_debuglevel & BMP_DEBUG_WIRE)
		return;
	va_list ap;
    va_start(ap, format);
    vfprintf(stderr, format, ap);
    va_end(ap);
	return;
}
#endif

#define ALIGN(x, n) (((x) + (n) - 1) & ~((n) - 1))
#undef MIN
#define MIN(x, y)  (((x) < (y)) ? (x) : (y))
#undef MAX
#define MAX(x, y)  (((x) > (y)) ? (x) : (y))

#if !defined(SYSTICKHZ)
# define SYSTICKHZ 100
#endif
#define SYSTICKMS (1000 / SYSTICKHZ)
#define MORSECNT ((SYSTICKHZ / 10) - 1)

#endif