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betaflight/src/main/drivers/display.h

92 lines
3.7 KiB
C

/*
* This file is part of Cleanflight and Betaflight.
*
* Cleanflight and Betaflight are free software. You can redistribute
* this software and/or modify this software under the terms of the
* GNU General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option)
* any later version.
*
* Cleanflight and Betaflight are distributed in the hope that they
* will be useful, but WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this software.
*
* If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
typedef enum {
DISPLAYPORT_ATTR_NONE = 0,
DISPLAYPORT_ATTR_INFO,
DISPLAYPORT_ATTR_WARNING,
DISPLAYPORT_ATTR_CRITICAL,
} displayPortAttr_e;
#define DISPLAYPORT_ATTR_BLINK 0x80 // Device local blink bit or'ed into displayPortAttr_e
typedef enum {
DISPLAYPORT_LAYER_FOREGROUND,
DISPLAYPORT_LAYER_BACKGROUND,
DISPLAYPORT_LAYER_COUNT,
} displayPortLayer_e;
struct displayPortVTable_s;
typedef struct displayPort_s {
const struct displayPortVTable_s *vTable;
void *device;
uint8_t rows;
uint8_t cols;
uint8_t posX;
uint8_t posY;
// CMS state
bool useFullscreen;
bool cleared;
int8_t cursorRow;
int8_t grabCount;
} displayPort_t;
typedef struct displayPortVTable_s {
int (*grab)(displayPort_t *displayPort);
int (*release)(displayPort_t *displayPort);
int (*clearScreen)(displayPort_t *displayPort);
int (*drawScreen)(displayPort_t *displayPort);
int (*screenSize)(const displayPort_t *displayPort);
int (*writeString)(displayPort_t *displayPort, uint8_t x, uint8_t y, uint8_t attr, const char *text);
int (*writeChar)(displayPort_t *displayPort, uint8_t x, uint8_t y, uint8_t attr, uint8_t c);
bool (*isTransferInProgress)(const displayPort_t *displayPort);
int (*heartbeat)(displayPort_t *displayPort);
void (*resync)(displayPort_t *displayPort);
bool (*isSynced)(const displayPort_t *displayPort);
uint32_t (*txBytesFree)(const displayPort_t *displayPort);
bool (*layerSupported)(displayPort_t *displayPort, displayPortLayer_e layer);
bool (*layerSelect)(displayPort_t *displayPort, displayPortLayer_e layer);
bool (*layerCopy)(displayPort_t *displayPort, displayPortLayer_e destLayer, displayPortLayer_e sourceLayer);
} displayPortVTable_t;
void displayGrab(displayPort_t *instance);
void displayRelease(displayPort_t *instance);
void displayReleaseAll(displayPort_t *instance);
bool displayIsGrabbed(const displayPort_t *instance);
void displayClearScreen(displayPort_t *instance);
void displayDrawScreen(displayPort_t *instance);
int displayScreenSize(const displayPort_t *instance);
void displaySetXY(displayPort_t *instance, uint8_t x, uint8_t y);
int displayWrite(displayPort_t *instance, uint8_t x, uint8_t y, uint8_t attr, const char *s);
int displayWriteChar(displayPort_t *instance, uint8_t x, uint8_t y, uint8_t attr, uint8_t c);
bool displayIsTransferInProgress(const displayPort_t *instance);
void displayHeartbeat(displayPort_t *instance);
void displayResync(displayPort_t *instance);
bool displayIsSynced(const displayPort_t *instance);
uint16_t displayTxBytesFree(const displayPort_t *instance);
void displayInit(displayPort_t *instance, const displayPortVTable_t *vTable);
bool displayLayerSupported(displayPort_t *instance, displayPortLayer_e layer);
bool displayLayerSelect(displayPort_t *instance, displayPortLayer_e layer);
bool displayLayerCopy(displayPort_t *instance, displayPortLayer_e destLayer, displayPortLayer_e sourceLayer);