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, displayClearOption_e options)
  46 {
  47     UNUSED(options);
  48
  49     i2c_OLED_clear_display_quick(displayPort->device);
  50     return 0;
  51 }
  52
  53 static bool oledDrawScreen(displayPort_t *displayPort)
  54 {
  55     UNUSED(displayPort);
  56     return 0;
  57 }
  58
  59 static int oledScreenSize(const displayPort_t *displayPort)
  60 {
  61     return displayPort->rows * displayPort->cols;
  62 }
  63
  64 static int oledWriteString(displayPort_t *displayPort, uint8_t x, uint8_t y, uint8_t attr, const char *s)
  65 {
  66     UNUSED(attr);
  67
  68     i2c_OLED_set_xy(displayPort->device, x, y);
  69     i2c_OLED_send_string(displayPort->device, s);
  70     return 0;
  71 }
  72
  73 static int oledWriteChar(displayPort_t *displayPort, uint8_t x, uint8_t y, uint8_t attr, uint8_t c)
  74 {
  75     UNUSED(attr);
  76
  77     i2c_OLED_set_xy(displayPort->device, x, y);
  78     i2c_OLED_send_char(displayPort->device, c);
  79     return 0;
  80 }
  81
  82 static bool oledIsTransferInProgress(const displayPort_t *displayPort)
  83 {
  84     UNUSED(displayPort);
  85     return false;
  86 }
  87
  88 static bool oledIsSynced(const displayPort_t *displayPort)
  89 {
  90     UNUSED(displayPort);
  91     return true;
  92 }
  93
  94 static int oledHeartbeat(displayPort_t *displayPort)
  95 {
  96     UNUSED(displayPort);
  97     return 0;
  98 }
  99
 100 static void oledRedraw(displayPort_t *displayPort)
 101 {
 102     UNUSED(displayPort);
 103 }
 104
 105 static uint32_t oledTxBytesFree(const displayPort_t *displayPort)
 106 {
 107     UNUSED(displayPort);
 108     return UINT32_MAX;
 109 }
 110
 111 static const displayPortVTable_t oledVTable = {
 112     .grab = oledGrab,
 113     .release = oledRelease,
 114     .clearScreen = oledClearScreen,
 115     .drawScreen = oledDrawScreen,
 116     .screenSize = oledScreenSize,
 117     .writeString = oledWriteString,
 118     .writeChar = oledWriteChar,
 119     .isTransferInProgress = oledIsTransferInProgress,
 120     .heartbeat = oledHeartbeat,
 121     .redraw = oledRedraw,
 122     .isSynced = oledIsSynced,
 123     .txBytesFree = oledTxBytesFree,
 124     .layerSupported = NULL,
 125     .layerSelect = NULL,
 126     .layerCopy = NULL,
 127 };
 128
 129 displayPort_t *displayPortOledInit(void *device)
 130 {
 131     oledDisplayPort.device = device;
 132     displayInit(&oledDisplayPort, &oledVTable, DISPLAYPORT_DEVICE_TYPE_OLED);
 133     oledDisplayPort.rows = SCREEN_CHARACTER_ROW_COUNT;
 134     oledDisplayPort.cols = SCREEN_CHARACTER_COLUMN_COUNT;
 135     return &oledDisplayPort;
 136 }