src/main/drivers/max7456.h

   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 #pragma once
  22
  23 #include <stdint.h>
  24
  25 #include "drivers/display.h"
  26
  27 /** PAL or NTSC, value is number of chars total */
  28 #define VIDEO_BUFFER_CHARS_NTSC   390
  29 #define VIDEO_BUFFER_CHARS_PAL    480
  30 #define VIDEO_LINES_NTSC          13
  31 #define VIDEO_LINES_PAL           16
  32
  33 typedef enum {
  34     // IO defined and MAX7456 was detected
  35     MAX7456_INIT_OK = 0,
  36     // IO defined, but MAX7456 could not be detected (maybe not yet
  37     // powered on)
  38     MAX7456_INIT_NOT_FOUND = -1,
  39     // No MAX7456 IO defined, which means either the we don't have it or
  40     // it's not properly configured
  41     MAX7456_INIT_NOT_CONFIGURED = -2,
  42 } max7456InitStatus_e;
  43
  44 extern uint16_t maxScreenSize;
  45 struct vcdProfile_s;
  46 void    max7456HardwareReset(void);
  47 struct max7456Config_s;
  48 void    max7456PreInit(const struct max7456Config_s *max7456Config);
  49 max7456InitStatus_e max7456Init(const struct max7456Config_s *max7456Config, const struct vcdProfile_s *vcdProfile, bool cpuOverclock);
  50 void    max7456Invert(bool invert);
  51 void    max7456Brightness(uint8_t black, uint8_t white);
  52 bool    max7456ReInitIfRequired(bool forceStallCheck);
  53 bool     max7456DrawScreen(void);
  54 bool    max7456WriteNvm(uint8_t char_address, const uint8_t *font_data);
  55 uint8_t max7456GetRowsCount(void);
  56 void    max7456Write(uint8_t x, uint8_t y, const char *text);
  57 void    max7456WriteChar(uint8_t x, uint8_t y, uint8_t c);
  58 void    max7456ClearScreen(void);
  59 void    max7456RefreshAll(void);
  60 bool    max7456DmaInProgress(void);
  61 bool    max7456BuffersSynced(void);
  62 bool    max7456LayerSupported(displayPortLayer_e layer);
  63 bool    max7456LayerSelect(displayPortLayer_e layer);
  64 bool    max7456LayerCopy(displayPortLayer_e destLayer, displayPortLayer_e sourceLayer);
  65 bool    max7456IsDeviceDetected(void);
  66 void    max7456SetBackgroundType(displayPortBackground_e backgroundType);