52d516ab46
In order to achieve better scalability, change the stride from pixel mode to byte mode.For example, in the case of RGB888 mode with 466 pixels in width and a 4-byte aligned buffer,it is only necessary to extend the buffer of one line from 1398 bytes to 1400 bytes, instead of extending it to 1404 bytes. Signed-off-by: rongyichang <rongyichang@xiaomi.com>
120 lines
4.2 KiB
C
120 lines
4.2 KiB
C
/****************************************************************************
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* include/nuttx/lcd/lcd_dev.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __INCLUDE_NUTTX_LCD_LCD_DEV_H
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#define __INCLUDE_NUTTX_LCD_LCD_DEV_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <nuttx/input/ioctl.h>
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#include <nuttx/lcd/lcd.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/****************************************************************************
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* Type Definitions
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****************************************************************************/
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#define LCDDEVIO_PUTRUN _LCDIOC(0) /* Arg: const struct lcddev_run_s* */
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#define LCDDEVIO_PUTAREA _LCDIOC(1) /* Arg: const struct lcddev_area_s* */
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#define LCDDEVIO_GETRUN _LCDIOC(2) /* Arg: struct lcddev_run_s* */
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#define LCDDEVIO_GETAREA _LCDIOC(3) /* Arg: struct lcddev_area_s* */
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#define LCDDEVIO_GETPOWER _LCDIOC(4) /* Arg: int* */
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#define LCDDEVIO_SETPOWER _LCDIOC(5) /* Arg: int */
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#define LCDDEVIO_GETCONTRAST _LCDIOC(6) /* Arg: int* */
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#define LCDDEVIO_SETCONTRAST _LCDIOC(7) /* Arg: unsigned int */
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#define LCDDEVIO_GETPLANEINFO _LCDIOC(8) /* Arg: struct lcd_planeinfo_s* */
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#define LCDDEVIO_GETVIDEOINFO _LCDIOC(9) /* Arg: struct fb_videoinfo_s* */
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#define LCDDEVIO_SETPLANENO _LCDIOC(10) /* Arg: int */
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#ifdef CONFIG_FB_CMAP
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#define LCDDEVIO_GETCMAP _LCDIOC(11) /* Arg: struct fb_cmap_s* */
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#define LCDDEVIO_PUTCMAP _LCDIOC(12) /* Arg: const struct fb_cmap_s* */
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#endif
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#ifdef CONFIG_FB_HWCURSOR
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#define LCDDEVIO_GETCURSOR _LCDIOC(13) /* Arg: struct fb_cursorattrib_s* */
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#define LCDDEVIO_SETCURSOR _LCDIOC(14) /* Arg: struct fb_setcursor_s* */
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#endif
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#define LCDDEVIO_SETFRAMERATE _LCDIOC(15) /* Arg: int */
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#define LCDDEVIO_GETFRAMERATE _LCDIOC(16) /* Arg: int* */
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#define LCDDEVIO_GETAREAALIGN _LCDIOC(17) /* Arg: struct lcddev_area_align_s* */
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/****************************************************************************
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* Public Data
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****************************************************************************/
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#ifdef __cplusplus
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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struct lcddev_run_s
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{
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fb_coord_t row, col;
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FAR uint8_t *data;
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size_t npixels;
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};
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struct lcddev_area_s
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{
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fb_coord_t row_start, row_end;
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fb_coord_t col_start, col_end;
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fb_coord_t stride; /* row stride in bytes */
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FAR uint8_t *data;
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};
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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/****************************************************************************
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* Name: lcddev_register
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*
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* Description:
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* Register the lcd_dev character driver as the specified device.
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*
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* Input Parameters:
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* devno - The LCD device number.
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*
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* Returned Value:
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* Zero (OK) is returned on success. Otherwise a negated errno value is
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* returned to indicate the nature of the failure.
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*
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****************************************************************************/
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int lcddev_register(int devno);
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#undef EXTERN
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#ifdef __cplusplus
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}
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#endif
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#endif /* __INCLUDE_NUTTX_LCD_LCD_DEV_H */
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