qi-bootmenu.c

   1 /*
   2  *  qi-bootmenu - A kexec based bootloader with an elementary based GUI
   3  *
   4  *  Copyright (c) 2009-2010 Marc Andre Tanner <mat@brain-dump.org>
   5  *
   6  *  qi-bootmenu shares the basic idea with kexecboot which is written by:
   7  *
   8  *  Copyright (c) 2008-2009 Yuri Bushmelev <jay4mail@gmail.com>
   9  *  Copyright (c) 2008 Thomas Kunze <thommycheck@gmx.de>
  10  *
  11  *  This program is free software; you can redistribute it and/or modify
  12  *  it under the terms of the GNU General Public License as published by
  13  *  the Free Software Foundation; either version 2, or (at your option)
  14  *  any later version.
  15  *
  16  *  This program is distributed in the hope that it will be useful,
  17  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  *  GNU General Public License for more details.
  20  *
  21  */
  22
  23 #include <stdbool.h>
  24 #include <stdio.h>
  25 #include <string.h>
  26 #include <Eina.h>
  27 #include <Evas.h>
  28 #include <Ecore.h>
  29 #include <Ecore_Evas.h>
  30
  31 #define countof(arr) (sizeof(arr) / sizeof((arr)[0]))
  32 #define sstrlen(str) (sizeof(str) - 1)
  33
  34 static void eprint(const char *errstr, ...);
  35
  36 #ifdef NDEBUG
  37  #define debug(format, args...)
  38 #else
  39  #define debug eprint
  40 #endif
  41
  42 #define RGB(r, g, b) r,g,b
  43
  44 typedef struct {
  45         const char *fs;
  46         const char *dev;
  47         const char *kernel;
  48         const char *cmdline;
  49         const char *logo;
  50 } BootItem;
  51
  52 typedef struct {
  53         const char *text;
  54         const char *logo;
  55         void(*callback)(void*, Evas*, Evas_Object*, void *);
  56         void *data;
  57 } MenuItem;
  58
  59 /* menu actions */
  60 static void boot_nand(void *data, Evas *evas, Evas_Object *obj, void *event);
  61 static void poweroff(void *data, Evas *evas, Evas_Object *obj, void *event);
  62
  63 /* drawing related stuff */
  64 static Ecore_Evas *ee;
  65 static Evas *evas;
  66
  67 typedef struct {
  68         char option;
  69         void(*show)(Eina_List *systems);
  70         void(*select)(Evas_Object *item);
  71         void(*deselect)(Evas_Object *item);
  72         void(*error)(const char *errstr, va_list ap);
  73 } Gui;
  74
  75 /* functions available to gui modules */
  76 static void gui_bootitem_clicked(void *data, Evas *evas, Evas_Object *item, void *event);
  77 static void gui_show_error(const char *errstr, ...);
  78
  79 #include "config.h"
  80
  81 /* will be used to search the kernel as in {u,z}Image-$MACHINE.bin */
  82 static const char *machine = DEFAULT_MACHINE;
  83
  84 /* if no option is passed in then use the first entry */
  85 static Gui *gui = &guis[0];
  86
  87 #include "kexec.c"
  88 #include "gui.c"
  89
  90 static void eprint(const char *errstr, ...) {
  91         va_list ap;
  92         va_start(ap, errstr);
  93         vfprintf(stderr, errstr, ap);
  94         va_end(ap);
  95 }
  96
  97 static void usage() {
  98         eprint("usage: qi-bootmenu [-d] [-m ...] [-i ...]\n");
  99         exit(1);
 100 }
 101
 102 int main(int argc, char **argv) {
 103
 104         Eina_List *dev_ignore = NULL; /* partitions to ignore */
 105         bool diag = false;
 106         int arg;
 107         unsigned int g;
 108
 109         if (!eina_init())
 110                 return 1;
 111
 112         for (arg = 1; arg < argc; arg++) {
 113                 if (argv[arg][0] != '-')
 114                         usage();
 115
 116                 switch (argv[arg][1]) {
 117                         case 'd':
 118                                 diag = true;
 119                                 break;
 120                         case 'm':
 121                                 if (arg + 1 >= argc)
 122                                         usage();
 123                                 machine = argv[++arg];
 124                                 break;
 125                         case 'i':
 126                                 if (arg + 1 >= argc)
 127                                         usage();
 128                                 dev_ignore = eina_list_append(dev_ignore, argv[++arg]);
 129                                 break;
 130                         default:
 131                                 for (g = 0; g < countof(guis); g++) {
 132                                         if (argv[arg][1] == guis[g].option)
 133                                                 gui = &guis[g];
 134                                 }
 135                                 break;
 136                 }
 137         }
 138
 139         if (diag) {
 140                 gui->error = NULL;
 141                 diagnostics(dev_ignore);
 142                 return 0;
 143         }
 144
 145         if (!gui_init()) {
 146                 eprint("Couldn't init GUI\n");
 147                 return 1;
 148         }
 149
 150         /* search for system images to boot and display them */
 151         gui->show(scan_system(dev_ignore));
 152
 153         debug("entering main loop\n");
 154
 155         ecore_main_loop_begin();
 156
 157         return 0;
 158 }