src/main/io/displayport_oled.c

   1 /*
   2  * This file is part of Cleanflight and Betaflight.
   3  *
   4  * Cleanflight and Betaflight are free software. You can redistribute
   5  * this software and/or modify this software under the terms of the
   6  * GNU General Public License as published by the Free Software
   7  * Foundation, either version 3 of the License, or (at your option)
   8  * any later version.
   9  *
  10  * Cleanflight and Betaflight are distributed in the hope that they
  11  * will be useful, but WITHOUT ANY WARRANTY; without even the implied
  12  * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  13  * See the GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this software.
  17  *
  18  * If not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #include <stdbool.h>
  22 #include <stdint.h>
  23
  24 #include "platform.h"
  25
  26 #include "common/utils.h"
  27
  28 #include "drivers/display.h"
  29 #include "drivers/display_ug2864hsweg01.h"
  30
  31 static displayPort_t oledDisplayPort;
  32
  33 static int oledGrab(displayPort_t *displayPort)
  34 {
  35     UNUSED(displayPort);
  36     return 0;
  37 }
  38
  39 static int oledRelease(displayPort_t *displayPort)
  40 {
  41     UNUSED(displayPort);
  42     return 0;
  43 }
  44
  45 static int oledClearScreen(displayPort_t *displayPort)
  46 {
  47     i2c_OLED_clear_display_quick(displayPort->device);
  48     return 0;
  49 }
  50
  51 static bool oledDrawScreen(displayPort_t *displayPort)
  52 {
  53     UNUSED(displayPort);
  54     return 0;
  55 }
  56
  57 static int oledScreenSize(const displayPort_t *displayPort)
  58 {
  59     return displayPort->rows * displayPort->cols;
  60 }
  61
  62 static int oledWriteString(displayPort_t *displayPort, uint8_t x, uint8_t y, uint8_t attr, const char *s)
  63 {
  64     UNUSED(attr);
  65
  66     i2c_OLED_set_xy(displayPort->device, x, y);
  67     i2c_OLED_send_string(displayPort->device, s);
  68     return 0;
  69 }
  70
  71 static int oledWriteChar(displayPort_t *displayPort, uint8_t x, uint8_t y, uint8_t attr, uint8_t c)
  72 {
  73     UNUSED(attr);
  74
  75     i2c_OLED_set_xy(displayPort->device, x, y);
  76     i2c_OLED_send_char(displayPort->device, c);
  77     return 0;
  78 }
  79
  80 static bool oledIsTransferInProgress(const displayPort_t *displayPort)
  81 {
  82     UNUSED(displayPort);
  83     return false;
  84 }
  85
  86 static bool oledIsSynced(const displayPort_t *displayPort)
  87 {
  88     UNUSED(displayPort);
  89     return true;
  90 }
  91
  92 static int oledHeartbeat(displayPort_t *displayPort)
  93 {
  94     UNUSED(displayPort);
  95     return 0;
  96 }
  97
  98 static void oledRedraw(displayPort_t *displayPort)
  99 {
 100     UNUSED(displayPort);
 101 }
 102
 103 static uint32_t oledTxBytesFree(const displayPort_t *displayPort)
 104 {
 105     UNUSED(displayPort);
 106     return UINT32_MAX;
 107 }
 108
 109 static const displayPortVTable_t oledVTable = {
 110     .grab = oledGrab,
 111     .release = oledRelease,
 112     .clearScreen = oledClearScreen,
 113     .drawScreen = oledDrawScreen,
 114     .screenSize = oledScreenSize,
 115     .writeString = oledWriteString,
 116     .writeChar = oledWriteChar,
 117     .isTransferInProgress = oledIsTransferInProgress,
 118     .heartbeat = oledHeartbeat,
 119     .redraw = oledRedraw,
 120     .isSynced = oledIsSynced,
 121     .txBytesFree = oledTxBytesFree,
 122     .layerSupported = NULL,
 123     .layerSelect = NULL,
 124     .layerCopy = NULL,
 125 };
 126
 127 displayPort_t *displayPortOledInit(void *device)
 128 {
 129     oledDisplayPort.device = device;
 130     displayInit(&oledDisplayPort, &oledVTable, DISPLAYPORT_DEVICE_TYPE_OLED);
 131     oledDisplayPort.rows = SCREEN_CHARACTER_ROW_COUNT;
 132     oledDisplayPort.cols = SCREEN_CHARACTER_COLUMN_COUNT;
 133     return &oledDisplayPort;
 134 }