2 * This file is part of Cleanflight and Betaflight.
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)
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.
15 * You should have received a copy of the GNU General Public License
16 * along with this software.
18 * If not, see <http://www.gnu.org/licenses/>.
25 #include "drivers/display.h"
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
34 // IO defined and MAX7456 was detected
36 // IO defined, but MAX7456 could not be detected (maybe not yet
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
;
44 extern uint16_t maxScreenSize
;
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
);