apps/gui/usb_screen.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2002 Björn Stenberg
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21
  22 #include "action.h"
  23 #include "font.h"
  24 #ifdef HAVE_REMOTE_LCD
  25 #include "lcd-remote.h"
  26 #endif
  27 #include "lang.h"
  28 #include "usb.h"
  29 #if defined(HAVE_USBSTACK)
  30 #include "usb_core.h"
  31 #ifdef USB_ENABLE_HID
  32 #include "usb_keymaps.h"
  33 #endif
  34 #endif
  35 #include "settings.h"
  36 #include "led.h"
  37 #include "appevents.h"
  38 #include "usb_screen.h"
  39
  40 #ifdef HAVE_LCD_BITMAP
  41 #include "bitmaps/usblogo.h"
  42 #endif
  43
  44 #ifdef HAVE_REMOTE_LCD
  45 #include "bitmaps/remote_usblogo.h"
  46 #endif
  47
  48 #if (CONFIG_STORAGE & STORAGE_MMC)
  49 #include "ata_mmc.h"
  50 #endif
  51
  52 #ifdef USB_ENABLE_HID
  53 int usb_keypad_mode;
  54 static bool usb_hid;
  55 #endif
  56
  57 #ifndef SIMULATOR
  58
  59 static int handle_usb_events(void)
  60 {
  61 #if (CONFIG_STORAGE & STORAGE_MMC)
  62     int next_update=0;
  63 #endif /* STORAGE_MMC */
  64
  65     /* Don't return until we get SYS_USB_DISCONNECTED or SYS_TIMEOUT */
  66     while(1)
  67     {
  68         int button;
  69 #ifdef USB_ENABLE_HID
  70         if (usb_hid)
  71         {
  72             button = get_hid_usb_action();
  73
  74             /* On mode change, we need to refresh the screen */
  75             if (button == ACTION_USB_HID_MODE_SWITCH_NEXT ||
  76                     button == ACTION_USB_HID_MODE_SWITCH_PREV)
  77             {
  78                 break;
  79             }
  80         }
  81         else
  82 #endif
  83         {
  84             button = button_get_w_tmo(HZ/2);
  85             /* hid emits the event in get_action */
  86             send_event(GUI_EVENT_ACTIONUPDATE, NULL);
  87         }
  88
  89         switch(button)
  90         {
  91             case SYS_USB_DISCONNECTED:
  92                 usb_acknowledge(SYS_USB_DISCONNECTED_ACK);
  93                 return 1;
  94             case SYS_TIMEOUT:
  95                 break;
  96         }
  97
  98 #if (CONFIG_STORAGE & STORAGE_MMC) /* USB-MMC bridge can report activity */
  99         if(TIME_AFTER(current_tick,next_update))
 100         {
 101             if(usb_inserted()) {
 102                 led(mmc_usb_active(HZ));
 103             }
 104             next_update=current_tick+HZ/2;
 105         }
 106 #endif /* STORAGE_MMC */
 107     }
 108
 109     return 0;
 110 }
 111 #endif
 112
 113 #ifdef USB_NONE
 114 void gui_usb_screen_run(void)
 115 {
 116 }
 117 #else
 118 #define MODE_NAME_LEN 32
 119
 120 struct usb_screen_vps_t
 121 {
 122     struct viewport parent;
 123 #ifdef HAVE_LCD_BITMAP
 124     struct viewport logo;
 125 #ifdef USB_ENABLE_HID
 126     struct viewport title;
 127 #endif
 128 #endif
 129 };
 130
 131 #ifdef HAVE_LCD_BITMAP
 132 static bool usb_screen_fix_viewports(struct screen *screen,
 133         struct usb_screen_vps_t *usb_screen_vps)
 134 {
 135     bool theme_needs_undo = false;
 136     int logo_width, logo_height;
 137     struct viewport *parent = &usb_screen_vps->parent;
 138     struct viewport *logo = &usb_screen_vps->logo;
 139
 140 #ifdef HAVE_REMOTE_LCD
 141     if (screen->screen_type == SCREEN_REMOTE)
 142     {
 143         logo_width = BMPWIDTH_remote_usblogo;
 144         logo_height = BMPHEIGHT_remote_usblogo;
 145     }
 146     else
 147 #endif
 148     {
 149         logo_width = BMPWIDTH_usblogo;
 150         logo_height = BMPHEIGHT_usblogo;
 151     }
 152
 153     viewport_set_defaults(parent, screen->screen_type);
 154     if (parent->width < logo_width || parent->height < logo_height)
 155     {
 156         theme_needs_undo = true;
 157         viewportmanager_theme_enable(screen->screen_type, false, parent);
 158     }
 159
 160     *logo = *parent;
 161     logo->x = parent->x + parent->width - logo_width;
 162     logo->y = parent->y + (parent->height - logo_height) / 2;
 163     logo->width = logo_width;
 164     logo->height = logo_height;
 165
 166 #ifdef USB_ENABLE_HID
 167     if (usb_hid)
 168     {
 169         struct viewport *title = &usb_screen_vps->title;
 170         int char_height = font_get(parent->font)->height;
 171         *title = *parent;
 172         title->y = logo->y + logo->height + char_height;
 173         title->height = char_height;
 174         /* try to fit logo and title to parent */
 175         if (parent->y + parent->height < title->y + title->height)
 176         {
 177             logo->y = parent->y;
 178             title->y = parent->y + logo->height;
 179         }
 180     }
 181 #endif
 182     return theme_needs_undo;
 183 }
 184 #endif
 185
 186 static void usb_screens_draw(struct usb_screen_vps_t *usb_screen_vps_ar)
 187 {
 188     int i;
 189     lcd_clear_display();
 190 #ifdef HAVE_LCD_REMOTE
 191     lcd_remote_clear_display();
 192 #endif
 193
 194     FOR_NB_SCREENS(i)
 195     {
 196         struct screen *screen = &screens[i];
 197
 198         struct usb_screen_vps_t *usb_screen_vps = &usb_screen_vps_ar[i];
 199         struct viewport *parent = &usb_screen_vps->parent;
 200 #ifdef HAVE_LCD_BITMAP
 201         struct viewport *logo = &usb_screen_vps->logo;
 202 #endif
 203
 204         screen->set_viewport(parent);
 205 #if LCD_DEPTH > 1
 206         screen->backdrop_show(BACKDROP_MAIN);
 207 #endif
 208         screen->backlight_on();
 209         screen->clear_viewport();
 210
 211 #ifdef HAVE_LCD_BITMAP
 212         screen->set_viewport(logo);
 213 #ifdef HAVE_REMOTE_LCD
 214         if (i == SCREEN_REMOTE)
 215         {
 216             screen->bitmap(remote_usblogo, 0, 0, logo->width,
 217                 logo->height);
 218         }
 219         else
 220 #endif
 221         {
 222             screen->transparent_bitmap(usblogo, 0, 0, logo->width,
 223                 logo->height);
 224 #ifdef USB_ENABLE_HID
 225             if (usb_hid)
 226             {
 227                 screen->set_viewport(&usb_screen_vps->title);
 228                 usb_screen_vps->title.flags |= VP_FLAG_ALIGN_CENTER;
 229                 screen->puts_scroll(0, 0, str(keypad_mode_name_get()));
 230             }
 231 #endif /* USB_ENABLE_HID */
 232         }
 233         screen->set_viewport(parent);
 234
 235 #else /* HAVE_LCD_BITMAP */
 236         screen->double_height(false);
 237         screen->puts_scroll(0, 0, "[USB Mode]");
 238         status_set_param(false);
 239         status_set_audio(false);
 240         status_set_usb(true);
 241 #endif /* HAVE_LCD_BITMAP */
 242
 243         screen->update_viewport();
 244         screen->set_viewport(NULL);
 245     }
 246 }
 247
 248 void gui_usb_screen_run(void)
 249 {
 250     int i;
 251     bool screen_theme_needs_undo[NB_SCREENS];
 252     struct usb_screen_vps_t usb_screen_vps_ar[NB_SCREENS];
 253 #if defined HAVE_TOUCHSCREEN
 254     enum touchscreen_mode old_mode = touchscreen_get_mode();
 255
 256     /* TODO: Paint buttons on screens OR switch to point mode and use
 257      * touchscreen as a touchpad to move the host's mouse cursor */
 258     touchscreen_set_mode(TOUCHSCREEN_BUTTON);
 259 #endif
 260
 261 #ifndef SIMULATOR
 262     usb_acknowledge(SYS_USB_CONNECTED_ACK);
 263 #endif
 264
 265 #ifdef USB_ENABLE_HID
 266     usb_hid = global_settings.usb_hid;
 267     usb_keypad_mode = global_settings.usb_keypad_mode;
 268 #endif
 269
 270     FOR_NB_SCREENS(i)
 271     {
 272         struct screen *screen = &screens[i];
 273
 274         screen->set_viewport(NULL);
 275 #ifdef HAVE_LCD_BITMAP
 276         screen_theme_needs_undo[i] = usb_screen_fix_viewports(screen, &usb_screen_vps_ar[i]);
 277 #endif
 278     }
 279
 280     while (1)
 281     {
 282         usb_screens_draw(usb_screen_vps_ar);
 283 #ifdef SIMULATOR
 284         if (button_get_w_tmo(HZ/2))
 285             break;
 286         send_event(GUI_EVENT_ACTIONUPDATE, NULL);
 287 #else
 288         if (handle_usb_events())
 289             break;
 290 #endif /* SIMULATOR */
 291     }
 292
 293     FOR_NB_SCREENS(i)
 294     {
 295         const struct viewport* vp = NULL;
 296
 297 #if defined(HAVE_LCD_BITMAP) && defined(USB_ENABLE_HID)
 298         vp = usb_hid ? &usb_screen_vps_ar[i].title : NULL;
 299 #elif !defined(HAVE_LCD_BITMAP)
 300         vp = &usb_screen_vps_ar[i].parent;
 301 #endif
 302         if (vp)
 303             screens[i].scroll_stop(vp);
 304     }
 305 #ifdef USB_ENABLE_HID
 306     if (global_settings.usb_keypad_mode != usb_keypad_mode)
 307     {
 308         global_settings.usb_keypad_mode = usb_keypad_mode;
 309         settings_save();
 310     }
 311 #endif
 312
 313 #ifdef HAVE_TOUCHSCREEN
 314     touchscreen_set_mode(old_mode);
 315 #endif
 316
 317 #ifdef HAVE_LCD_CHARCELLS
 318     status_set_usb(false);
 319 #endif /* HAVE_LCD_CHARCELLS */
 320     FOR_NB_SCREENS(i)
 321     {
 322         screens[i].backlight_on();
 323         if(screen_theme_needs_undo[i])
 324         {
 325             viewportmanager_theme_undo(i, false);
 326         }
 327     }
 328
 329 }
 330 #endif /* !defined(USB_NONE) */
 331