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/***************************************************************************
 *             __________               __   ___.
 *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
 *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
 *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
 *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
 *                     \/            \/     \/    \/            \/
 * $Id$
 *
 * Copyright (C) 2002 Bj�rn Stenberg
 *
 * All files in this archive are subject to the GNU General Public License.
 * See the file COPYING in the source tree root for full license agreement.
 *
 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
 * KIND, either express or implied.
 *
 ****************************************************************************/
#ifndef _PLUGIN_H_
#define _PLUGIN_H_

/* instruct simulator code to not redefine any symbols when compiling plugins.
   (the PLUGIN macro is defined in apps/plugins/Makefile) */
#ifdef PLUGIN
#define NO_REDEFINES_PLEASE
#endif

#ifndef MEM
#define MEM 2
#endif

#include <stdbool.h>
#include <sys/types.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include "config.h"
#include "system.h"
#include "dir.h"
#include "general.h"
#include "kernel.h"
#include "thread.h"
#include "button.h"
#include "action.h"
#include "usb.h"
#include "font.h"
#include "lcd.h"
#include "id3.h"
#include "sound.h"
#include "mpeg.h"
#include "audio.h"
#include "mp3_playback.h"
#include "talk.h"
#ifdef RB_PROFILE
#include "profile.h"
#endif
#include "misc.h"
#if (CONFIG_CODEC == SWCODEC)
#include "dsp.h"
#include "codecs.h"
#include "playback.h"
#include "metadata.h"
#ifdef HAVE_RECORDING
#include "recording.h"
#endif
#else
#include "mas.h"
#endif /* CONFIG_CODEC == SWCODEC */
#include "settings.h"
#include "timer.h"
#include "playlist.h"
#ifdef HAVE_LCD_BITMAP
#include "scrollbar.h"
#endif
#include "statusbar.h"
#include "menu.h"
#include "rbunicode.h"
#include "list.h"
#include "tree.h"
#include "color_picker.h"
#include "buffering.h"
#include "tagcache.h"

#ifdef HAVE_ALBUMART
#include "albumart.h"
#endif

#ifdef HAVE_REMOTE_LCD
#include "lcd-remote.h"
#endif

#ifdef PLUGIN

#if defined(DEBUG) || defined(SIMULATOR)
#undef DEBUGF
#define DEBUGF  rb->debugf
#undef LDEBUGF
#define LDEBUGF rb->debugf
#else
#define DEBUGF(...)
#define LDEBUGF(...)
#endif

#ifdef ROCKBOX_HAS_LOGF
#undef LOGF
#define LOGF rb->logf
#else
#define LOGF(...)
#endif

#endif

#ifdef SIMULATOR
#define PREFIX(_x_) sim_ ## _x_
#else
#define PREFIX(_x_) _x_
#endif

#define PLUGIN_MAGIC 0x526F634B /* RocK */

/* increase this every time the api struct changes */
#define PLUGIN_API_VERSION 93

/* update this to latest version if a change to the api struct breaks
   backwards compatibility (and please take the opportunity to sort in any
   new function which are "waiting" at the end of the function table) */
#define PLUGIN_MIN_API_VERSION 88

/* plugin return codes */
enum plugin_status {
    PLUGIN_OK = 0,
    PLUGIN_USB_CONNECTED,
    PLUGIN_ERROR = -1,
};

/* NOTE: To support backwards compatibility, only add new functions at
         the end of the structure.  Every time you add a new function,
         remember to increase PLUGIN_API_VERSION.  If you make changes to the
         existing APIs then also update PLUGIN_MIN_API_VERSION to current
         version
 */
struct plugin_api {

    /* lcd */
    void (*lcd_set_contrast)(int x);
    void (*lcd_update)(void);
    void (*lcd_clear_display)(void);
    void (*lcd_setmargins)(int x, int y);
    int  (*lcd_getstringsize)(const unsigned char *str, int *w, int *h);
    void (*lcd_putsxy)(int x, int y, const unsigned char *string);
    void (*lcd_puts)(int x, int y, const unsigned char *string);
    void (*lcd_puts_scroll)(int x, int y, const unsigned char* string);
    void (*lcd_stop_scroll)(void);
#ifdef HAVE_LCD_CHARCELLS
    void (*lcd_define_pattern)(unsigned long ucs, const char *pattern);
    unsigned long (*lcd_get_locked_pattern)(void);
    void (*lcd_unlock_pattern)(unsigned long ucs);
    void (*lcd_putc)(int x, int y, unsigned long ucs);
    void (*lcd_put_cursor)(int x, int y, unsigned long ucs);
    void (*lcd_remove_cursor)(void);
    void (*lcd_icon)(int icon, bool enable);
    void (*lcd_double_height)(bool on);
#else
    void (*lcd_set_drawmode)(int mode);
    int  (*lcd_get_drawmode)(void);
    void (*lcd_setfont)(int font);
    void (*lcd_drawpixel)(int x, int y);
    void (*lcd_drawline)(int x1, int y1, int x2, int y2);
    void (*lcd_hline)(int x1, int x2, int y);
    void (*lcd_vline)(int x, int y1, int y2);
    void (*lcd_drawrect)(int x, int y, int width, int height);
    void (*lcd_fillrect)(int x, int y, int width, int height);
    void (*lcd_mono_bitmap_part)(const unsigned char *src, int src_x, int src_y,
                                 int stride, int x, int y, int width, int height);
    void (*lcd_mono_bitmap)(const unsigned char *src, int x, int y,
                            int width, int height);
#if LCD_DEPTH > 1
    void     (*lcd_set_foreground)(unsigned foreground);
    unsigned (*lcd_get_foreground)(void);
    void     (*lcd_set_background)(unsigned foreground);
    unsigned (*lcd_get_background)(void);
    void (*lcd_bitmap_part)(const fb_data *src, int src_x, int src_y,
                            int stride, int x, int y, int width, int height);
    void (*lcd_bitmap)(const fb_data *src, int x, int y, int width,
                       int height);
    fb_data* (*lcd_get_backdrop)(void);
    void (*lcd_set_backdrop)(fb_data* backdrop);
#endif
#if LCD_DEPTH == 16
    void (*lcd_bitmap_transparent_part)(const fb_data *src,
            int src_x, int src_y, int stride,
            int x, int y, int width, int height);
    void (*lcd_bitmap_transparent)(const fb_data *src, int x, int y,
            int width, int height);
#endif
    unsigned short *(*bidi_l2v)( const unsigned char *str, int orientation );
    const unsigned char *(*font_get_bits)( struct font *pf, unsigned short char_code );
    struct font* (*font_load)(const char *path);
    void (*lcd_puts_style)(int x, int y, const unsigned char *str, int style);
    void (*lcd_puts_scroll_style)(int x, int y, const unsigned char* string,
                                  int style);
    fb_data* lcd_framebuffer;
    void (*lcd_blit) (const fb_data* data, int x, int by, int width,
                      int bheight, int stride);
    void (*lcd_update_rect)(int x, int y, int width, int height);
    void (*gui_scrollbar_draw)(struct screen * screen, int x, int y,
                               int width, int height, int items,
                               int min_shown, int max_shown,
                               unsigned flags);
    struct font* (*font_get)(int font);
    int  (*font_getstringsize)(const unsigned char *str, int *w, int *h,
                               int fontnumber);
    int (*font_get_width)(struct font* pf, unsigned short char_code);
    void (*screen_clear_area)(struct screen * display, int xstart, int ystart,
                              int width, int height);
#endif
    void (*backlight_on)(void);
    void (*backlight_off)(void);
    void (*backlight_set_timeout)(int index);
#if CONFIG_CHARGING
    void (*backlight_set_timeout_plugged)(int index);
#endif
    void (*splash)(int ticks, const char *fmt, ...) ATTRIBUTE_PRINTF(2, 3);

#ifdef HAVE_REMOTE_LCD
    /* remote lcd */
    void (*lcd_remote_set_contrast)(int x);
    void (*lcd_remote_clear_display)(void);
    void (*lcd_remote_setmargins)(int x, int y);
    void (*lcd_remote_puts)(int x, int y, const unsigned char *string);
    void (*lcd_remote_puts_scroll)(int x, int y, const unsigned char* string);
    void (*lcd_remote_stop_scroll)(void);
    void (*lcd_remote_set_drawmode)(int mode);
    int  (*lcd_remote_get_drawmode)(void);
    void (*lcd_remote_setfont)(int font);
    int  (*lcd_remote_getstringsize)(const unsigned char *str, int *w, int *h);
    void (*lcd_remote_drawpixel)(int x, int y);
    void (*lcd_remote_drawline)(int x1, int y1, int x2, int y2);
    void (*lcd_remote_hline)(int x1, int x2, int y);
    void (*lcd_remote_vline)(int x, int y1, int y2);
    void (*lcd_remote_drawrect)(int x, int y, int nx, int ny);
    void (*lcd_remote_fillrect)(int x, int y, int nx, int ny);
    void (*lcd_remote_mono_bitmap_part)(const unsigned char *src, int src_x,
                                        int src_y, int stride, int x, int y,
                                        int width, int height);
    void (*lcd_remote_mono_bitmap)(const unsigned char *src, int x, int y,
                                   int width, int height);
    void (*lcd_remote_putsxy)(int x, int y, const unsigned char *string);
    void (*lcd_remote_puts_style)(int x, int y, const unsigned char *str, int style);
    void (*lcd_remote_puts_scroll_style)(int x, int y, const unsigned char* string,
                                         int style);
    fb_remote_data* lcd_remote_framebuffer;
    void (*lcd_remote_update)(void);
    void (*lcd_remote_update_rect)(int x, int y, int width, int height);

    void (*remote_backlight_on)(void);
    void (*remote_backlight_off)(void);
#endif
    struct screen* screens[NB_SCREENS];
#if defined(HAVE_REMOTE_LCD) && (LCD_REMOTE_DEPTH > 1)
    void     (*lcd_remote_set_foreground)(unsigned foreground);
    unsigned (*lcd_remote_get_foreground)(void);
    void     (*lcd_remote_set_background)(unsigned background);
    unsigned (*lcd_remote_get_background)(void);
    void (*lcd_remote_bitmap_part)(const fb_remote_data *src, int src_x, int src_y,
                                   int stride, int x, int y, int width, int height);
    void (*lcd_remote_bitmap)(const fb_remote_data *src, int x, int y, int width,
                              int height);
#endif
#if defined(HAVE_LCD_COLOR)
    void (*lcd_yuv_blit)(unsigned char * const src[3],
                         int src_x, int src_y, int stride,
                         int x, int y, int width, int height);
#endif

#if defined(TOSHIBA_GIGABEAT_F) || defined(SANSA_E200) || defined(SANSA_C200)
    void (*lcd_yuv_set_options)(unsigned options);
#endif

    /* list */
    void (*gui_synclist_init)(struct gui_synclist * lists,
            list_get_name callback_get_item_name,void * data,
            bool scroll_all,int selected_size);
    void (*gui_synclist_set_nb_items)(struct gui_synclist * lists, int nb_items);
    void (*gui_synclist_set_icon_callback)(struct gui_synclist * lists, list_get_icon icon_callback);
    int (*gui_synclist_get_nb_items)(struct gui_synclist * lists);
    int  (*gui_synclist_get_sel_pos)(struct gui_synclist * lists);
    void (*gui_synclist_draw)(struct gui_synclist * lists);
    void (*gui_synclist_select_item)(struct gui_synclist * lists,
    int item_number);
    void (*gui_synclist_add_item)(struct gui_synclist * lists);
    void (*gui_synclist_del_item)(struct gui_synclist * lists);
    void (*gui_synclist_limit_scroll)(struct gui_synclist * lists, bool scroll);
    bool (*gui_synclist_do_button)(struct gui_synclist * lists,
                                         unsigned *action, enum list_wrap wrap);
    void (*gui_synclist_set_title)(struct gui_synclist *lists, char* title, int icon);

    /* button */
    long (*button_get)(bool block);
    long (*button_get_w_tmo)(int ticks);
    int (*button_status)(void);
    void (*button_clear_queue)(void);
    int (*button_queue_count)(void);   
#ifdef HAS_BUTTON_HOLD
    bool (*button_hold)(void);
#endif

    /* file */
    int (*PREFIX(open))(const char* pathname, int flags);
    int (*PREFIX(close))(int fd);
    ssize_t (*PREFIX(read))(int fd, void* buf, size_t count);
    off_t (*PREFIX(lseek))(int fd, off_t offset, int whence);
    int (*PREFIX(creat))(const char *pathname);
    ssize_t (*PREFIX(write))(int fd, const void* buf, size_t count);
    int (*PREFIX(remove))(const char* pathname);
    int (*PREFIX(rename))(const char* path, const char* newname);
    int (*PREFIX(ftruncate))(int fd, off_t length);
    off_t (*PREFIX(filesize))(int fd);
    int (*fdprintf)(int fd, const char *fmt, ...) ATTRIBUTE_PRINTF(2, 3);
    int (*read_line)(int fd, char* buffer, int buffer_size);
    bool (*settings_parseline)(char* line, char** name, char** value);
#ifndef SIMULATOR
    void (*ata_sleep)(void);
    bool (*ata_disk_is_active)(void);
#endif
    void (*ata_spindown)(int seconds);
    void (*reload_directory)(void);
    char *(*create_numbered_filename)(char *buffer, const char *path,
                                      const char *prefix, const char *suffix,
                                      int numberlen IF_CNFN_NUM_(, int *num));

    /* dir */
    DIR* (*opendir)(const char* name);
    int (*closedir)(DIR* dir);
    struct dirent* (*readdir)(DIR* dir);
    int (*mkdir)(const char *name);
    int (*rmdir)(const char *name);

    /* kernel/ system */
    void (*PREFIX(sleep))(int ticks);
    void (*yield)(void);
#ifdef HAVE_PRIORITY_SCHEDULING
    void (*priority_yield)(void);
#endif
    volatile long* current_tick;
    long (*default_event_handler)(long event);
    long (*default_event_handler_ex)(long event, void (*callback)(void *), void *parameter);
    struct thread_entry* threads;
    struct thread_entry* (*create_thread)(void (*function)(void), void* stack,
                                          int stack_size, unsigned flags,
                                          const char *name
                                          IF_PRIO(, int priority)
					                      IF_COP(, unsigned int core));
    void (*remove_thread)(struct thread_entry *thread);
    void (*reset_poweroff_timer)(void);
#ifndef SIMULATOR
    int (*system_memory_guard)(int newmode);
    long *cpu_frequency;
#ifdef HAVE_ADJUSTABLE_CPU_FREQ
#ifdef CPU_BOOST_LOGGING
    void (*cpu_boost_)(bool on_off,char*location,int line);
#else
    void (*cpu_boost)(bool on_off);
#endif
#endif
#endif
    bool (*timer_register)(int reg_prio, void (*unregister_callback)(void),
                           long cycles, int int_prio,
                           void (*timer_callback)(void));
    void (*timer_unregister)(void);
    bool (*timer_set_period)(long count);

    void (*queue_init)(struct event_queue *q, bool register_queue);
    void (*queue_delete)(struct event_queue *q);
    void (*queue_post)(struct event_queue *q, long id, intptr_t data);
    void (*queue_wait_w_tmo)(struct event_queue *q, struct queue_event *ev,
            int ticks);
    void (*usb_acknowledge)(long id);
#ifdef RB_PROFILE
    void (*profile_thread)(void);
    void (*profstop)(void);
    void (*profile_func_enter)(void *this_fn, void *call_site);
    void (*profile_func_exit)(void *this_fn, void *call_site);
#endif

#ifdef SIMULATOR
    /* special simulator hooks */
#if defined(HAVE_LCD_BITMAP) && LCD_DEPTH < 8
    void (*sim_lcd_ex_init)(int shades, unsigned long (*getpixel)(int, int));
    void (*sim_lcd_ex_update_rect)(int x, int y, int width, int height);
#endif
#endif

    /* strings and memory */
    int (*snprintf)(char *buf, size_t size, const char *fmt, ...)
                    ATTRIBUTE_PRINTF(3, 4);
    int (*vsnprintf)(char *buf, int size, const char *fmt, va_list ap);
    char* (*strcpy)(char *dst, const char *src);
    char* (*strncpy)(char *dst, const char *src, size_t length);
    size_t (*strlen)(const char *str);
    char * (*strrchr)(const char *s, int c);
    int (*strcmp)(const char *, const char *);
    int (*strncmp)(const char *, const char *, size_t);
    int (*strcasecmp)(const char *, const char *);
    int (*strncasecmp)(const char *s1, const char *s2, size_t n);
    void* (*memset)(void *dst, int c, size_t length);
    void* (*memcpy)(void *out, const void *in, size_t n);
    void* (*memmove)(void *out, const void *in, size_t n);
    const unsigned char *_ctype_;
    int (*atoi)(const char *str);
    char *(*strchr)(const char *s, int c);
    char *(*strcat)(char *s1, const char *s2);
    void *(*memchr)(const void *s1, int c, size_t n);
    int (*memcmp)(const void *s1, const void *s2, size_t n);