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RA8875 LCD driver contributed by Marten Svanfeldt
This commit is contained in:
Gregory Nutt
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/**************************************************************************************
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* include/nuttx/lcd/ra8875.h
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* Definitions for the RAiO Technologies RA8875 LCD controller
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*
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* Copyright (C) 2015 Intuitive Aerial AB. All rights reserved.
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* Author: Marten Svanfeldt <marten@intuitiveaerial.com>
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*
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* References: RA8875, Rev 1.6, Apr 2013, RAiO Technologies Inc
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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**************************************************************************************/
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#ifndef __INCLUDE_NUTTX_LCD_RA8875_H
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#define __INCLUDE_NUTTX_LCD_RA8875_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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#ifdef CONFIG_LCD_RA8875
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/**************************************************************************************
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* Pre-processor Definitions
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**************************************************************************************/
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/* Configuration **********************************************************************/
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/* CONFIG_LCD_RA8875 - Enables support for the RA8875-based LCD.
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* CONFIG_LCD_NOGETRUN
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* NX components need to know if it can read from the LCD or not. If reading from the
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* LCD is supported then some graphic operations can be improved. Default: Supported
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* CONFIG_LCD_LANDSCAPE - Define for 320x240 display "landscape" support. Default is
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* this 320x240 "landscape" orientation.
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* CONFIG_LCD_RLANDSCAPE - Define for 320x240 display "reverse landscape" support.
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* Default is this 320x240 "landscape" orientation
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* CONFIG_LCD_PORTRAIT - Define for 240x320 display "portrait" orientation support.
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* Default is this 320x240 "landscape" orientation
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* CONFIG_LCD_RPORTRAIT - Define for 240x320 display "reverse portrait" orientation
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* support. Default is this 320x240 "landscape" orientation
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*/
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/**************************************************************************************
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* Public Types
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**************************************************************************************/
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/* This structure defines the interface to the LCD provided by the platform. The
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* nature of this interface is hidden from the RA8875 driver.
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*/
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struct ra8875_lcd_s
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{
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void (*write_reg)(FAR struct ra8875_lcd_s *dev, uint8_t regnum, uint8_t data);
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void (*write_reg16)(FAR struct ra8875_lcd_s *dev, uint8_t regnum, uint16_t data);
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uint8_t (*read_reg)(FAR struct ra8875_lcd_s *dev, uint8_t regnum);
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uint8_t (*read_status)(FAR struct ra8875_lcd_s *dev);
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/* Interface for fast pixel access */
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void (*pwrite_prepare)(FAR struct ra8875_lcd_s *dev, uint8_t regnum);
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void (*pwrite_data8)(FAR struct ra8875_lcd_s *dev, uint8_t data);
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void (*pwrite_data16)(FAR struct ra8875_lcd_s *dev, uint16_t data);
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void (*pwrite_finish)(FAR struct ra8875_lcd_s *dev);
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void (*pread_prepare)(FAR struct ra8875_lcd_s *dev, uint8_t regnum);
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uint16_t (*pread_data16)(FAR struct ra8875_lcd_s *dev);
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void (*pread_finish)(FAR struct ra8875_lcd_s *dev);
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/* platform-specific data may follow */
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};
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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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/**************************************************************************************
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* Public Function Prototypes
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**************************************************************************************/
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/**************************************************************************************
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* Name: ra8875_lcdinitialize
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*
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* Description:
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* Initialize the LCD video hardware. The initial state of the LCD is fully
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* initialized, display memory cleared, and the LCD ready to use, but with the power
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* setting at 0 (full off).
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*
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**************************************************************************************/
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FAR struct lcd_dev_s *ra8875_lcdinitialize(FAR struct ra8875_lcd_s *lcd);
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/**************************************************************************************
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* Name: ra8875_clear
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*
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* Description:
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* This is a non-standard LCD interface just for the RA8875. Because
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* of the various rotations, clearing the display in the normal way by writing a
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* sequences of runs that covers the entire display can be very slow. Here the
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* display is cleared by simply setting all video memory to the specified color.
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*
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* NOTE: This function is not available to applications in the protected or kernel
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* build modes.
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*
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**************************************************************************************/
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void ra8875_clear(FAR struct lcd_dev_s *dev, uint16_t color);
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/**************************************************************************************
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* Name: ra8875_drawrectangle
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*
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* Description:
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* This is a non-standard function to draw a rectangle on the LCD. This function is
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* also used internally as part of the ra8875_clear implementation.
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*
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* NOTE: This non-standard function is not available to applications in the
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* protected or kernel build modes.
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*
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**************************************************************************************/
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void ra8875_drawrectangle(FAR struct lcd_dev_s *dev, uint16_t x, uint16_t y,
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uint16_t width, uint16_t height, uint16_t color, bool fill);
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/**************************************************************************************
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* Name: ra8875_drawline
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*
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* Description:
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* This is a non-standard function to draw a line on the LCD. This function is
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* also used internally as part of the ra8875_rectandle implementation.
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*
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* NOTE: This non-standard function is not available to applications in the
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* protected or kernel build modes.
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*
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**************************************************************************************/
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void ra8875_drawline(FAR struct lcd_dev_s *dev, uint16_t x1, uint16_t y1, uint16_t x2,
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uint16_t y2, uint16_t color);
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/**************************************************************************************
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* Name: ra8875_drawtriangle
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*
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* Description:
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* This is a non-standard function to draw a triangle on the LCD. This function is
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* also used internally as part of the ra8875_rectandle implementation.
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*
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* NOTE: This non-standard function is not available to applications in the
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* protected or kernel build modes.
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*
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**************************************************************************************/
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#ifdef CONFIG_LCD_RA8875_EXTENDED
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void ra8875_drawtriangle(FAR struct lcd_dev_s *dev, uint16_t x0, uint16_t y0,
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uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2,
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uint16_t color, bool fill);
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#endif
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/**************************************************************************************
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* Name: ra8875_drawcircle
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*
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* Description:
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* This is a non-standard function to draw a circle on the LCD. This function is
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* also used internally as part of the ra8875_rectandle implementation.
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*
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* NOTE: This non-standard function is not available to applications in the
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* protected or kernel build modes.
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*
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**************************************************************************************/
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#ifdef CONFIG_LCD_RA8875_EXTENDED
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void ra8875_drawcircle(FAR struct lcd_dev_s *dev, uint16_t x, uint16_t y,
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uint8_t radius, uint16_t color, bool fill);
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#endif
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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 /* CONFIG_LCD_SRA8875 */
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#endif /* __INCLUDE_NUTTX_LCD_SRA8875_H */
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