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   1 /*
   2  * Copyright © 2009 Keith Packard <keithp@keithp.com>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with this program; if not, write to the Free Software Foundation, Inc.,
  16  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
  17  */
  18
  19 #include "aoview.h"
  20
  21 #define EEPROM_LEN      1024
  22
  23 static struct aoview_file       *eeprom_file;
  24 static char                     eeprom_line[EEPROM_LEN + 1];
  25 static int                      eeprom_pos;
  26 static GtkMessageDialog         *eeprom_save_done;
  27 static GtkWidget                *eeprom_save_close;
  28 static gboolean                 eeprom_save_shown;
  29
  30 static void
  31 aoview_eeprom_disconnect(struct aoview_serial *serial)
  32 {
  33         aoview_file_finish(eeprom_file);
  34 }
  35
  36 static void
  37 aoview_eeprom_done(struct aoview_serial *serial)
  38 {
  39         gtk_window_set_title(GTK_WINDOW(eeprom_save_done),
  40                              "EEPROM data saved");
  41         gtk_message_dialog_set_markup(eeprom_save_done,
  42                                       "<b>EEPROM data saved as</b>");
  43         if (!eeprom_save_shown)
  44                 gtk_widget_show(GTK_WIDGET(eeprom_save_done));
  45         eeprom_save_close = gtk_window_get_default_widget(GTK_WINDOW(eeprom_save_done));
  46         if (eeprom_save_close)
  47                 gtk_widget_set_sensitive(eeprom_save_close, TRUE);
  48         aoview_eeprom_disconnect(serial);
  49 }
  50
  51 static gboolean
  52 aoview_eeprom_parse(struct aoview_serial *serial,
  53                     char *line)
  54 {
  55         char            cmd;
  56         int             tick;
  57         int             a;
  58         int             b;
  59         int             serial_number;
  60         const char      *name;
  61         char            *utf8_name;
  62
  63         if (!strcmp(line, "end")) {
  64                 aoview_eeprom_done(serial);
  65                 return FALSE;
  66         }
  67         if (sscanf(line, "serial-number %u", &serial_number) == 1) {
  68                 aoview_file_set_serial(eeprom_file, serial_number);
  69         } else if (sscanf(line, "%c %x %x %x", &cmd, &tick, &a, &b) == 4) {
  70                 if (cmd == 'F')
  71                         aoview_file_set_flight(eeprom_file, b);
  72                 aoview_file_printf(eeprom_file, "%s\n", line);
  73                 if (cmd == 'S' && a == 8) {
  74                         aoview_eeprom_done(serial);
  75                         return FALSE;
  76                 }
  77
  78                 if (!eeprom_save_shown)
  79                 {
  80                         name = aoview_file_name(eeprom_file);
  81                         if (name) {
  82                                 utf8_name = g_filename_to_utf8(name, -1, NULL, NULL, NULL);
  83                                 if (!utf8_name)
  84                                         utf8_name = (char *) name;
  85                                 gtk_widget_set_sensitive(eeprom_save_close, FALSE);
  86                                 gtk_window_set_title(GTK_WINDOW(eeprom_save_done),
  87                                                      "Saving EEPROM data");
  88                                 gtk_message_dialog_set_markup(eeprom_save_done,
  89                                                               "<b>Saving EEPROM data as</b>");
  90                                 gtk_message_dialog_format_secondary_text(eeprom_save_done, "%s",
  91                                                                          utf8_name);
  92                                 if (utf8_name != name)
  93                                         g_free(utf8_name);
  94                                 gtk_container_check_resize(GTK_CONTAINER(eeprom_save_done));
  95                                 gtk_widget_show(GTK_WIDGET(eeprom_save_done));
  96                                 eeprom_save_shown = TRUE;
  97                                 eeprom_save_close = gtk_window_get_default_widget(GTK_WINDOW(eeprom_save_done));
  98                                 if (eeprom_save_close)
  99                                         gtk_widget_set_sensitive(eeprom_save_close, FALSE);
 100                         }
 101                 }
 102         }
 103         return TRUE;
 104 }
 105
 106 static void
 107 aoview_eeprom_callback(gpointer user_data,
 108                        struct aoview_serial *serial,
 109                        gint revents)
 110 {
 111         int     c;
 112
 113         if (revents & (G_IO_HUP|G_IO_ERR)) {
 114                 aoview_eeprom_disconnect(serial);
 115                 return;
 116         }
 117         if (revents & G_IO_IN) {
 118                 for (;;) {
 119                         c = aoview_serial_getc(serial);
 120                         if (c == -1)
 121                                 break;
 122                         if (c == '\r')
 123                                 continue;
 124                         if (c == '\n') {
 125                                 eeprom_line[eeprom_pos] = '\0';
 126                                 if (eeprom_pos)
 127                                 if (!aoview_eeprom_parse(serial, eeprom_line))
 128                                         break;
 129                                 eeprom_pos = 0;
 130                         } else if (eeprom_pos < EEPROM_LEN)
 131                                 eeprom_line[eeprom_pos++] = c;
 132                 }
 133         }
 134 }
 135
 136 gboolean
 137 aoview_eeprom_save(const char *device)
 138 {
 139         struct aoview_serial    *serial;
 140
 141         gtk_widget_hide(GTK_WIDGET(eeprom_save_done));
 142         eeprom_save_shown = FALSE;
 143         serial = aoview_serial_open(device);
 144         if (!serial)
 145                 return FALSE;
 146         aoview_serial_set_callback(serial, aoview_eeprom_callback);
 147         aoview_serial_printf(serial, "v\nl\n");
 148         return TRUE;
 149 }
 150
 151 void
 152 aoview_eeprom_init(GladeXML *xml)
 153 {
 154         eeprom_file = aoview_file_new("eeprom");
 155         assert(eeprom_file);
 156
 157         eeprom_save_done = GTK_MESSAGE_DIALOG(glade_xml_get_widget(xml, "ao_save_done"));
 158         assert(eeprom_save_done);
 159
 160 }