167 lines
4.1 KiB
C++
167 lines
4.1 KiB
C++
// ftpd is a server implementation based on the following:
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// - RFC 959 (https://tools.ietf.org/html/rfc959)
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// - RFC 3659 (https://tools.ietf.org/html/rfc3659)
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// - suggested implementation details from https://cr.yp.to/ftp/filesystem.html
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//
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// Copyright (C) 2020 Michael Theall
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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#include "platform.h"
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#include "log.h"
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#include <dswifi9.h>
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#include <fat.h>
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#include <netinet/in.h>
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#include <cstring>
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#ifndef CLASSIC
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#error "NDS must be built in classic mode"
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#endif
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PrintConsole g_statusConsole;
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PrintConsole g_logConsole;
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PrintConsole g_sessionConsole;
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namespace
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{
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/// \brief Host address
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struct in_addr s_addr = {0};
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/// \brief Which side of double-buffer we're on
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bool s_backBuffer = false;
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/// \brief Whether to power backlight
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bool s_backlight = true;
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}
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bool platform::networkVisible ()
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{
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switch (Wifi_AssocStatus ())
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{
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case ASSOCSTATUS_DISCONNECTED:
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case ASSOCSTATUS_CANNOTCONNECT:
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s_addr.s_addr = 0;
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Wifi_AutoConnect ();
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break;
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case ASSOCSTATUS_SEARCHING:
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case ASSOCSTATUS_AUTHENTICATING:
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case ASSOCSTATUS_ASSOCIATING:
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case ASSOCSTATUS_ACQUIRINGDHCP:
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s_addr.s_addr = 0;
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break;
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case ASSOCSTATUS_ASSOCIATED:
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if (!s_addr.s_addr)
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s_addr = Wifi_GetIPInfo (nullptr, nullptr, nullptr, nullptr);
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return true;
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}
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return false;
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}
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bool platform::networkAddress (SockAddr &addr_)
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{
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struct sockaddr_in addr;
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addr.sin_family = AF_INET;
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addr.sin_addr = Wifi_GetIPInfo (nullptr, nullptr, nullptr, nullptr);
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addr_ = addr;
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return true;
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}
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bool platform::init ()
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{
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sassert (fatInitDefault (), "Failed to initialize fat");
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// turn off unused arm7 hardware
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powerOff (PM_SOUND_AMP);
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powerOn (PM_SOUND_MUTE);
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// turn off unused arm9 hardware
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powerOff (POWER_MATRIX | POWER_3D_CORE);
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videoSetMode (MODE_0_2D);
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videoSetModeSub (MODE_0_2D);
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vramSetBankA (VRAM_A_MAIN_BG);
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vramSetBankC (VRAM_C_SUB_BG);
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consoleInit (&g_statusConsole, 0, BgType_Text4bpp, BgSize_T_256x256, 4, 0, true, true);
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g_logConsole = g_statusConsole;
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consoleInit (&g_sessionConsole, 0, BgType_Text4bpp, BgSize_T_256x256, 4, 0, false, true);
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consoleSetWindow (&g_statusConsole, 0, 0, 32, 1);
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consoleSetWindow (&g_logConsole, 0, 1, 32, 23);
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consoleSetWindow (&g_sessionConsole, 0, 0, 32, 24);
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consoleDebugInit (DebugDevice_NOCASH);
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std::setvbuf (stderr, nullptr, _IONBF, 0);
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Wifi_InitDefault (INIT_ONLY);
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Wifi_AutoConnect ();
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return true;
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}
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bool platform::loop ()
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{
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scanKeys ();
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// check if the user wants to exit
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auto const kDown = keysDown ();
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if (kDown & KEY_START)
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return false;
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// check if the user wants to toggle the backlight
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if (kDown & KEY_SELECT)
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{
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s_backlight = !s_backlight;
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(s_backlight ? powerOn : powerOff) (POWER_LCD);
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}
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return true;
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}
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void platform::render ()
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{
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// make consoles point to maps being drawn
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g_statusConsole.fontBgMap = bgGetMapPtr (g_statusConsole.bgId);
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g_logConsole.fontBgMap = g_statusConsole.fontBgMap;
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g_sessionConsole.fontBgMap = bgGetMapPtr (g_sessionConsole.bgId);
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swiWaitForVBlank ();
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// point maps to back buffer to draw on next frame
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bgInit (0, BgType_Text4bpp, BgSize_T_256x256, 4 + s_backBuffer, 0);
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bgInitSub (0, BgType_Text4bpp, BgSize_T_256x256, 4 + s_backBuffer, 0);
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// initialize back buffer with previous contents
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dmaCopyWordsAsynch (0, bgGetMapPtr (g_statusConsole.bgId), g_statusConsole.fontBgMap, 0x800);
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dmaCopyWordsAsynch (1, bgGetMapPtr (g_sessionConsole.bgId), g_sessionConsole.fontBgMap, 0x800);
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while ((DMA_CR (0) & DMA_BUSY) || (DMA_CR (1) & DMA_BUSY))
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{
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}
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// flip buffers
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s_backBuffer = !s_backBuffer;
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}
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void platform::exit ()
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{
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powerOn (POWER_LCD);
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}
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