src/main/io/displayport_hott.c

   1 /*
   2  * This file is part of Cleanflight.
   3  *
   4  * Cleanflight 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 3 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * Cleanflight is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with Cleanflight.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 #include <stdbool.h>
  19 #include <stdint.h>
  20 #include <string.h>
  21
  22 #include "platform.h"
  23 #if defined (USE_HOTT_TEXTMODE) && defined (USE_CMS)
  24
  25 #include "common/utils.h"
  26 #include "cms/cms.h"
  27 #include "telemetry/hott.h"
  28
  29 displayPort_t hottDisplayPort;
  30
  31 static int hottDrawScreen(displayPort_t *displayPort)
  32 {
  33     UNUSED(displayPort);
  34     return 0;
  35 }
  36
  37 static int hottScreenSize(const displayPort_t *displayPort)
  38 {
  39     return displayPort->rows * displayPort->cols;
  40 }
  41
  42 static int hottWriteChar(displayPort_t *displayPort, uint8_t col, uint8_t row, uint8_t c)
  43 {
  44     UNUSED(displayPort);
  45
  46     hottTextmodeWriteChar(col, row, c);
  47     return 0;
  48 }
  49
  50 static int hottWriteString(displayPort_t *displayPort, uint8_t col, uint8_t row, const char *s)
  51 {
  52     while (*s) {
  53         hottWriteChar(displayPort,  col++, row, *(s++));
  54     }
  55     return 0;
  56 }
  57
  58 static int hottClearScreen(displayPort_t *displayPort)
  59 {
  60     for (int row = 0; row < displayPort->rows; row++) {
  61         for (int col= 0; col < displayPort->cols; col++) {
  62             hottWriteChar(displayPort, col, row, ' ');
  63         }
  64     }
  65     return 0;
  66 }
  67
  68 static bool hottIsTransferInProgress(const displayPort_t *displayPort)
  69 {
  70     UNUSED(displayPort);
  71     return false;
  72 }
  73
  74 static int hottHeartbeat(displayPort_t *displayPort)
  75 {
  76     if (!hottTextmodeIsAlive()) {
  77         cmsMenuExit(displayPort, (void*)CMS_EXIT_SAVE);
  78     }
  79
  80     return 0;
  81 }
  82
  83 static void hottResync(displayPort_t *displayPort)
  84 {
  85     UNUSED(displayPort);
  86 }
  87
  88 static uint32_t hottTxBytesFree(const displayPort_t *displayPort)
  89 {
  90     UNUSED(displayPort);
  91     return UINT32_MAX;
  92 }
  93
  94 static int hottGrab(displayPort_t *displayPort)
  95 {
  96     hottTextmodeGrab();
  97     return displayPort->grabCount = 1;
  98 }
  99
 100 static int hottRelease(displayPort_t *displayPort)
 101 {
 102     int cnt = displayPort->grabCount = 0;
 103     hottClearScreen(displayPort);
 104     hottTextmodeExit();
 105     return cnt;
 106 }
 107
 108 static const displayPortVTable_t hottVTable = {
 109     .grab = hottGrab,
 110     .release = hottRelease,
 111     .clearScreen = hottClearScreen,
 112     .drawScreen = hottDrawScreen,
 113     .screenSize = hottScreenSize,
 114     .writeString = hottWriteString,
 115     .writeChar = hottWriteChar,
 116     .isTransferInProgress = hottIsTransferInProgress,
 117     .heartbeat = hottHeartbeat,
 118     .resync = hottResync,
 119     .txBytesFree = hottTxBytesFree
 120 };
 121
 122 displayPort_t *displayPortHottInit()
 123 {
 124     hottDisplayPort.device = NULL;
 125     displayInit(&hottDisplayPort, &hottVTable);
 126     hottDisplayPort.useFullscreen = true;
 127     hottDisplayPort.rows = HOTT_TEXTMODE_DISPLAY_ROWS;
 128     hottDisplayPort.cols = HOTT_TEXTMODE_DISPLAY_COLUMNS;
 129     return &hottDisplayPort;
 130 }
 131
 132 void hottDisplayportRegister()
 133 {
 134     cmsDisplayPortRegister(displayPortHottInit());
 135 }
 136
 137 void hottCmsOpen()
 138 {
 139     if (!cmsInMenu) {
 140         cmsDisplayPortSelect(&hottDisplayPort);
 141         cmsMenuOpen();
 142     }
 143 }
 144
 145 void hottSetCmsKey(uint8_t hottKey, bool keepCmsOpen)
 146 {
 147     switch (hottKey) {
 148         case HOTTV4_BUTTON_DEC:
 149             cmsSetExternKey(CMS_KEY_UP);
 150             break;
 151         case HOTTV4_BUTTON_INC:
 152             cmsSetExternKey(CMS_KEY_DOWN);
 153             break;
 154         case HOTTV4_BUTTON_SET:
 155             if (cmsInMenu) {
 156                 cmsMenuExit(pCurrentDisplay, (void*)CMS_EXIT_SAVE);
 157             }
 158             cmsSetExternKey(CMS_KEY_NONE);
 159             break;
 160         case HOTTV4_BUTTON_NEXT:
 161             cmsSetExternKey(CMS_KEY_RIGHT);
 162             break;
 163         case HOTTV4_BUTTON_PREV:
 164             cmsSetExternKey(CMS_KEY_LEFT);
 165             if (keepCmsOpen) { // Make sure CMS is open until textmode is closed.
 166                 cmsMenuOpen();
 167             }
 168             break;
 169          default:
 170             cmsSetExternKey(CMS_KEY_NONE);
 171             break;
 172         }
 173 }
 174
 175 #endif