rockbox/apps/plugin.c
Björn Stenberg 13d56150b6 Added plugin support for 8MB-modified units. This bumps the plugin API version number again.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@3831 a1c6a512-1295-4272-9138-f99709370657
2003-07-13 22:15:19 +00:00

245 lines
5.2 KiB
C

/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2002 Björn 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.
*
****************************************************************************/
#include <stdbool.h>
#include <string.h>
#include <stdio.h>
#include "button.h"
#include "lcd.h"
#include "dir.h"
#include "file.h"
#include "kernel.h"
#include "sprintf.h"
#include "screens.h"
#include "misc.h"
#include "mas.h"
#include "plugin.h"
#include "lang.h"
#include "keyboard.h"
#ifdef HAVE_LCD_BITMAP
#include "widgets.h"
#endif
#ifdef SIMULATOR
#include <debug.h>
#ifdef WIN32
#include "plugin-win32.h"
#define PREFIX(_x_) _x_
#else
#include <dlfcn.h>
#define PREFIX(_x_) x11_ ## _x_
#endif
#else
#define PREFIX(_x_) _x_
#endif
static int plugin_test(int api_version, int model, int memsize);
static struct plugin_api rockbox_api = {
PLUGIN_API_VERSION,
plugin_test,
/* lcd */
lcd_clear_display,
lcd_puts,
lcd_puts_scroll,
lcd_stop_scroll,
#ifdef HAVE_LCD_CHARCELLS
lcd_define_pattern,
#else
lcd_putsxy,
lcd_bitmap,
lcd_drawline,
lcd_clearline,
lcd_drawpixel,
lcd_clearpixel,
lcd_setfont,
lcd_clearrect,
lcd_fillrect,
lcd_drawrect,
lcd_invertrect,
lcd_getstringsize,
lcd_update,
lcd_update_rect,
progressbar,
slidebar,
scrollbar,
#ifndef SIMULATOR
lcd_roll,
#endif
#endif
/* button */
button_get,
button_get_w_tmo,
/* file */
PREFIX(open),
PREFIX(close),
read,
lseek,
PREFIX(creat),
write,
remove,
rename,
ftruncate,
PREFIX(filesize),
fprintf,
read_line,
/* dir */
PREFIX(opendir),
PREFIX(closedir),
PREFIX(readdir),
/* kernel */
PREFIX(sleep),
usb_screen,
&current_tick,
/* strings and memory */
snprintf,
strcpy,
strlen,
memset,
memcpy,
/* sound */
#ifndef SIMULATOR
#ifdef HAVE_MAS3587F
mas_codec_readreg,
#endif
#endif
/* misc */
srand,
rand,
splash,
qsort,
kbd_input,
};
int plugin_load(char* plugin, void* parameter)
{
enum plugin_status (*plugin_start)(struct plugin_api* api, void* param);
int rc;
char buf[64];
#ifdef SIMULATOR
void* pd;
char path[256];
#else
extern unsigned char pluginbuf[];
int fd;
#endif
lcd_clear_display();
#ifdef HAVE_LCD_BITMAP
lcd_setmargins(0,0);
lcd_update();
#endif
#ifdef SIMULATOR
#ifdef WIN32
snprintf(path, sizeof path, "%s", plugin);
#else
snprintf(path, sizeof path, "archos%s", plugin);
#endif
pd = dlopen(path, RTLD_NOW);
if (!pd) {
snprintf(buf, sizeof buf, "Can't open %s", plugin);
splash(HZ*2, 0, true, buf);
DEBUGF("dlopen(%s): %s\n",path,dlerror());
dlclose(pd);
return -1;
}
plugin_start = dlsym(pd, "plugin_start");
if (!plugin_start) {
plugin_start = dlsym(pd, "_plugin_start");
if (!plugin_start) {
splash(HZ*2, 0, true, "Can't find entry point");
dlclose(pd);
return -1;
}
}
#else
fd = open(plugin, O_RDONLY);
if (fd < 0) {
snprintf(buf, sizeof buf, str(LANG_PLUGIN_CANT_OPEN), plugin);
splash(HZ*2, 0, true, buf);
return fd;
}
plugin_start = (void*)&pluginbuf;
rc = read(fd, plugin_start, 0x8000);
close(fd);
if (rc < 0) {
/* read error */
snprintf(buf, sizeof buf, str(LANG_READ_FAILED), plugin);
splash(HZ*2, 0, true, buf);
return -1;
}
if (rc == 0) {
/* loaded a 0-byte plugin, implying it's not for this model */
splash(HZ*2, 0, true, str(LANG_PLUGIN_WRONG_MODEL));
return -1;
}
#endif
rc = plugin_start(&rockbox_api, parameter);
switch (rc) {
case PLUGIN_OK:
break;
case PLUGIN_USB_CONNECTED:
return PLUGIN_USB_CONNECTED;
case PLUGIN_WRONG_API_VERSION:
splash(HZ*2, 0, true, str(LANG_PLUGIN_WRONG_VERSION));
break;
case PLUGIN_WRONG_MODEL:
splash(HZ*2, 0, true, str(LANG_PLUGIN_WRONG_MODEL));
break;
default:
splash(HZ*2, 0, true, str(LANG_PLUGIN_ERROR));
break;
}
#ifdef SIMULATOR
dlclose(pd);
#endif
return PLUGIN_OK;
}
int plugin_test(int api_version, int model, int memsize)
{
if (api_version != PLUGIN_API_VERSION)
return PLUGIN_WRONG_API_VERSION;
if (model != MODEL)
return PLUGIN_WRONG_MODEL;
if (memsize != MEM)
return PLUGIN_WRONG_MODEL;
return PLUGIN_OK;
}