0dc52d5c36
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@5263 a1c6a512-1295-4272-9138-f99709370657
497 lines
11 KiB
C
497 lines
11 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2002 Björn Stenberg
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*
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* All files in this archive are subject to the GNU General Public License.
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* See the file COPYING in the source tree root for full license agreement.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include <stdbool.h>
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#include <string.h>
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#include <stdio.h>
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#include <atoi.h>
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#include <timefuncs.h>
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#include <ctype.h>
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#include "debug.h"
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#include "button.h"
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#include "lcd.h"
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#include "dir.h"
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#include "file.h"
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#include "kernel.h"
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#include "sprintf.h"
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#include "screens.h"
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#include "misc.h"
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#include "mas.h"
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#include "plugin.h"
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#include "lang.h"
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#include "keyboard.h"
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#include "mpeg.h"
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#include "buffer.h"
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#include "mp3_playback.h"
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#include "backlight.h"
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#include "ata.h"
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#include "talk.h"
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#include "mp3data.h"
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#include "powermgmt.h"
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#ifdef HAVE_LCD_BITMAP
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#include "peakmeter.h"
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#include "widgets.h"
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#endif
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#ifdef SIMULATOR
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#include <debug.h>
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#ifdef WIN32
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#include "plugin-win32.h"
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#else
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#include <dlfcn.h>
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#endif
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#define PREFIX(_x_) sim_ ## _x_
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#else
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#define PREFIX(_x_) _x_
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#endif
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#define PLUGIN_BUFFER_SIZE 0x8000
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#ifdef SIMULATOR
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static unsigned char pluginbuf[PLUGIN_BUFFER_SIZE];
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#else
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extern unsigned char pluginbuf[];
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#include "bitswap.h"
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#endif
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static bool plugin_loaded = false;
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static int plugin_size = 0;
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#ifndef SIMULATOR
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static void (*pfn_timer)(void) = NULL; /* user timer handler */
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#endif
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static void (*pfn_tsr_exit)(void) = NULL; /* TSR exit callback */
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static int plugin_test(int api_version, int model, int memsize);
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static const struct plugin_api rockbox_api = {
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PLUGIN_API_VERSION,
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plugin_test,
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/* lcd */
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lcd_clear_display,
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lcd_puts,
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lcd_puts_scroll,
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lcd_stop_scroll,
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lcd_set_contrast,
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#ifdef HAVE_LCD_CHARCELLS
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lcd_define_pattern,
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lcd_get_locked_pattern,
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lcd_unlock_pattern,
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lcd_putc,
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lcd_put_cursor,
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lcd_remove_cursor,
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lcd_icon,
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#else
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lcd_putsxy,
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lcd_puts_style,
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lcd_bitmap,
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lcd_drawline,
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lcd_clearline,
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lcd_drawpixel,
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lcd_clearpixel,
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lcd_setfont,
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font_get,
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lcd_clearrect,
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lcd_fillrect,
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lcd_drawrect,
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lcd_invertrect,
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lcd_getstringsize,
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lcd_update,
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lcd_update_rect,
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scrollbar,
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checkbox,
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&lcd_framebuffer[0][0],
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lcd_blit,
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#ifndef SIMULATOR
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lcd_roll,
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#endif
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#endif
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backlight_on,
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backlight_off,
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splash,
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/* button */
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button_get,
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button_get_w_tmo,
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button_status,
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button_clear_queue,
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/* file */
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(open_func)PREFIX(open),
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PREFIX(close),
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(read_func)read,
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lseek,
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(creat_func)PREFIX(creat),
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(write_func)write,
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PREFIX(remove),
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PREFIX(rename),
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ftruncate,
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PREFIX(filesize),
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fprintf,
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read_line,
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settings_parseline,
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#ifndef SIMULATOR
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ata_sleep,
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#endif
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/* dir */
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PREFIX(opendir),
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PREFIX(closedir),
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PREFIX(readdir),
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/* kernel */
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PREFIX(sleep),
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yield,
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usb_screen,
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¤t_tick,
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default_event_handler,
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create_thread,
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remove_thread,
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reset_poweroff_timer,
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/* strings and memory */
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snprintf,
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strcpy,
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strncpy,
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strlen,
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strrchr,
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strcmp,
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strcasecmp,
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memset,
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memcpy,
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#ifndef SIMULATOR
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_ctype_,
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#endif
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atoi,
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/* sound */
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mpeg_sound_set,
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#ifndef SIMULATOR
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mp3_play_data,
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mp3_play_pause,
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mp3_play_stop,
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mp3_is_playing,
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bitswap,
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#endif
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/* playback control */
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mpeg_play,
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mpeg_stop,
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mpeg_pause,
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mpeg_resume,
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mpeg_next,
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mpeg_prev,
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mpeg_ff_rewind,
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mpeg_next_track,
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playlist_amount,
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mpeg_status,
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mpeg_has_changed_track,
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mpeg_current_track,
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/* MAS communication */
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#ifndef SIMULATOR
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mas_readmem,
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mas_writemem,
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mas_readreg,
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mas_writereg,
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#if (CONFIG_HWCODEC == MAS3587F) || (CONFIG_HWCODEC == MAS3539F)
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mas_codec_writereg,
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mas_codec_readreg,
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#endif
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#endif
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/* misc */
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srand,
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rand,
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(qsort_func)qsort,
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kbd_input,
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get_time,
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set_time,
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plugin_get_buffer,
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plugin_get_mp3_buffer,
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#ifndef SIMULATOR
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plugin_register_timer,
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plugin_unregister_timer,
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#endif
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plugin_tsr,
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#if defined(DEBUG) || defined(SIMULATOR)
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debugf,
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#endif
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&global_settings,
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backlight_set_timeout,
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mp3info,
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count_mp3_frames,
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create_xing_header,
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battery_level,
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/* new stuff at the end, sort into place next time
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the API gets incompatible */
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#if (CONFIG_HWCODEC == MAS3587F) || (CONFIG_HWCODEC == MAS3539F)
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mpeg_set_pitch,
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peak_meter_scale_value,
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peak_meter_set_use_dbfs,
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peak_meter_get_use_dbfs,
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#endif
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#ifdef HAVE_LCD_BITMAP
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lcd_puts_scroll_style,
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#endif
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mpeg_flush_and_reload_tracks,
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strncasecmp,
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mpeg_get_file_pos,
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find_next_frame,
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mpeg_get_last_header,
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#ifndef SIMULATOR
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system_memory_guard,
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#endif
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default_event_handler_ex,
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};
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int plugin_load(const char* plugin, void* parameter)
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{
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enum plugin_status (*plugin_start)(struct plugin_api* api, void* param);
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int rc;
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char buf[64];
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#ifdef SIMULATOR
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void* pd;
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char path[256];
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#else
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int fd;
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#endif
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#ifdef HAVE_LCD_BITMAP
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int xm,ym;
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#endif
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if (pfn_tsr_exit != NULL) /* if we have a resident old plugin: */
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{
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pfn_tsr_exit(); /* force it to exit now */
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pfn_tsr_exit = NULL;
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}
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#ifdef HAVE_LCD_BITMAP
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lcd_clear_display();
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xm = lcd_getxmargin();
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ym = lcd_getymargin();
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lcd_setmargins(0,0);
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lcd_update();
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#else
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lcd_clear_display();
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#endif
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#ifdef SIMULATOR
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snprintf(path, sizeof path, "archos%s", plugin);
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pd = dlopen(path, RTLD_NOW);
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if (!pd) {
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snprintf(buf, sizeof buf, str(LANG_PLUGIN_CANT_OPEN), plugin);
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splash(HZ*2, true, buf);
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DEBUGF("dlopen(%s): %s\n",path,dlerror());
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dlclose(pd);
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return -1;
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}
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plugin_start = dlsym(pd, "plugin_start");
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if (!plugin_start) {
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plugin_start = dlsym(pd, "_plugin_start");
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if (!plugin_start) {
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splash(HZ*2, true, "Can't find entry point");
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dlclose(pd);
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return -1;
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}
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}
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#else
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fd = open(plugin, O_RDONLY);
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if (fd < 0) {
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snprintf(buf, sizeof buf, str(LANG_PLUGIN_CANT_OPEN), plugin);
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splash(HZ*2, true, buf);
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return fd;
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}
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plugin_start = (void*)&pluginbuf;
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plugin_size = read(fd, plugin_start, PLUGIN_BUFFER_SIZE);
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close(fd);
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if (plugin_size < 0) {
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/* read error */
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snprintf(buf, sizeof buf, str(LANG_READ_FAILED), plugin);
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splash(HZ*2, true, buf);
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return -1;
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}
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if (plugin_size == 0) {
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/* loaded a 0-byte plugin, implying it's not for this model */
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splash(HZ*2, true, str(LANG_PLUGIN_WRONG_MODEL));
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return -1;
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}
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#endif
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plugin_loaded = true;
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rc = plugin_start((struct plugin_api*) &rockbox_api, parameter);
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/* explicitly casting the pointer here to avoid touching every plugin. */
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button_clear_queue();
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plugin_loaded = false;
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switch (rc) {
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case PLUGIN_OK:
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break;
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case PLUGIN_USB_CONNECTED:
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return PLUGIN_USB_CONNECTED;
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case PLUGIN_WRONG_API_VERSION:
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splash(HZ*2, true, str(LANG_PLUGIN_WRONG_VERSION));
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break;
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case PLUGIN_WRONG_MODEL:
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splash(HZ*2, true, str(LANG_PLUGIN_WRONG_MODEL));
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break;
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default:
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splash(HZ*2, true, str(LANG_PLUGIN_ERROR));
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break;
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}
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#ifdef SIMULATOR
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dlclose(pd);
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#endif
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#ifdef HAVE_LCD_BITMAP
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/* restore margins */
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lcd_setmargins(xm,ym);
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#endif
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return PLUGIN_OK;
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}
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/* Returns a pointer to the portion of the plugin buffer that is not already
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being used. If no plugin is loaded, returns the entire plugin buffer */
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void* plugin_get_buffer(int* buffer_size)
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{
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int buffer_pos;
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if (plugin_loaded)
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{
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if (plugin_size >= PLUGIN_BUFFER_SIZE)
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return NULL;
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*buffer_size = PLUGIN_BUFFER_SIZE-plugin_size;
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buffer_pos = plugin_size;
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}
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else
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{
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*buffer_size = PLUGIN_BUFFER_SIZE;
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buffer_pos = 0;
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}
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return &pluginbuf[buffer_pos];
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}
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/* Returns a pointer to the mp3 buffer.
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Playback gets stopped, to avoid conflicts. */
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void* plugin_get_mp3_buffer(int* buffer_size)
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{
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#ifdef SIMULATOR
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static unsigned char buf[1700*1024];
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*buffer_size = sizeof(buf);
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return buf;
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#else
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mpeg_stop();
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talk_buffer_steal(); /* we use the mp3 buffer, need to tell */
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*buffer_size = mp3end - mp3buf;
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return mp3buf;
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#endif
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}
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#ifndef SIMULATOR
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/* Register a periodic time callback, called every "cycles" CPU clocks.
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Note that this function will be called in interrupt context! */
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int plugin_register_timer(int cycles, int prio, void (*timer_callback)(void))
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{
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int phi = 0; /* bits for the prescaler */
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int prescale = 1;
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while (cycles > 0x10000)
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{ /* work out the smallest prescaler that makes it fit */
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phi++;
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prescale *= 2;
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cycles /= 2;
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}
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if (prescale > 8 || cycles == 0 || prio < 1 || prio > 15)
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return 0; /* error, we can't do such period, bad argument */
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and_b(~0x10, &TSTR); /* Stop the timer 4 */
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and_b(~0x10, &TSNC); /* No synchronization */
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and_b(~0x10, &TMDR); /* Operate normally */
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pfn_timer = timer_callback; /* install 2nd level ISR */
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and_b(~0x01, &TSR4);
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TIER4 = 0xF9; /* Enable GRA match interrupt */
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GRA4 = (unsigned short)(cycles - 1);
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TCR4 = 0x20 | phi; /* clear at GRA match, set prescaler */
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IPRD = (IPRD & 0xFF0F) | prio << 4; /* interrupt priority */
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or_b(0x10, &TSTR); /* start timer 4 */
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return cycles * prescale; /* return the actual period, in CPU clocks */
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}
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/* disable the user timer */
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void plugin_unregister_timer(void)
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{
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and_b(~0x10, &TSTR); /* stop the timer 4 */
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IPRD = (IPRD & 0xFF0F); /* disable interrupt */
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pfn_timer = NULL;
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}
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/* interrupt handler for user timer */
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#pragma interrupt
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void IMIA4(void)
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{
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if (pfn_timer != NULL)
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pfn_timer(); /* call the user timer function */
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and_b(~0x01, &TSR4); /* clear the interrupt */
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}
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#endif /* #ifndef SIMULATOR */
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/* The plugin wants to stay resident after leaving its main function, e.g.
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runs from timer or own thread. The callback is registered to later
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instruct it to free its resources before a new plugin gets loaded. */
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void plugin_tsr(void (*exit_callback)(void))
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{
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pfn_tsr_exit = exit_callback; /* remember the callback for later */
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}
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static int plugin_test(int api_version, int model, int memsize)
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{
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if (api_version < PLUGIN_MIN_API_VERSION ||
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api_version > PLUGIN_API_VERSION)
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return PLUGIN_WRONG_API_VERSION;
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if (model != MODEL)
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return PLUGIN_WRONG_MODEL;
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if (memsize != MEM)
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return PLUGIN_WRONG_MODEL;
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return PLUGIN_OK;
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}
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