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