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(*error)(const char *errstr, va_list ap);
  72 } Gui;
  73
  74 /* functions available to gui modules */
  75 static void gui_bootitem_clicked(void *data, Evas *evas, Evas_Object *item, void *event);
  76 static void gui_show_error(const char *errstr, ...);
  77
  78 #include "config.h"
  79
  80 /* will be used to search the kernel as in {u,z}Image-$MACHINE.bin */
  81 static const char *machine = DEFAULT_MACHINE;
  82
  83 /* if no option is passed in then use the first entry */
  84 static Gui *gui = &guis[0];
  85
  86 #include "kexec.c"
  87 #include "gui.c"
  88
  89 static void eprint(const char *errstr, ...) {
  90         va_list ap;
  91         va_start(ap, errstr);
  92         vfprintf(stderr, errstr, ap);
  93         va_end(ap);
  94 }
  95
  96 static void usage() {
  97         eprint("usage: qi-bootmenu [-d] [-m ...] [-i ...]\n");
  98         exit(1);
  99 }
 100
 101 int main(int argc, char **argv) {
 102
 103         Eina_List *dev_ignore = NULL; /* partitions to ignore */
 104         bool diag = false;
 105         int arg;
 106         unsigned int g;
 107
 108         if (!eina_init())
 109                 return 1;
 110
 111         for (arg = 1; arg < argc; arg++) {
 112                 if (argv[arg][0] != '-')
 113                         usage();
 114
 115                 switch (argv[arg][1]) {
 116                         case 'd':
 117                                 diag = true;
 118                                 break;
 119                         case 'm':
 120                                 if (arg + 1 >= argc)
 121                                         usage();
 122                                 machine = argv[++arg];
 123                                 break;
 124                         case 'i':
 125                                 if (arg + 1 >= argc)
 126                                         usage();
 127                                 dev_ignore = eina_list_append(dev_ignore, argv[++arg]);
 128                                 break;
 129                         default:
 130                                 for (g = 0; g < countof(guis); g++) {
 131                                         if (argv[arg][1] == guis[g].option)
 132                                                 gui = &guis[g];
 133                                 }
 134                                 break;
 135                 }
 136         }
 137
 138         if (diag) {
 139                 gui->error = NULL;
 140                 diagnostics(dev_ignore);
 141                 return 0;
 142         }
 143
 144         if (!gui_init()) {
 145                 eprint("Couldn't init GUI\n");
 146                 return 1;
 147         }
 148
 149         /* search for system images to boot and display them */
 150         gui->show(scan_system(dev_ignore));
 151
 152         debug("entering main loop\n");
 153
 154         ecore_main_loop_begin();
 155
 156         return 0;
 157 }