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Add generic SSD1289 LCD driver
git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@4768 7fd9a85b-ad96-42d3-883c-3090e2eb8679
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patacongo
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/**************************************************************************************
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* include/nuttx/lcd/ssd1289.h
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* Definitions for the Solomon Systech SSD1289 LCD controller
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*
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* Copyright (C) 2012 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* References: SSD1289, Rev 1.3, Apr 2007, Solomon Systech Limited
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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_SSD1289_H
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#define __INCLUDE_NUTTX_LCD_SSD1289_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_SSD1289
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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_SSD1289_WRONLY - The LCD interface support write-only operation.
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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 SSD1289 driver.
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*/
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struct ssd1289_lcd_s
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{
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/* Interface to write to a SSD1289 register.
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*
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* - select Select the device (as necessary). The meaning of selecting (and
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* and deselecting) is not defined. select() will be called before
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* starting any sequence of operations. deselect() when that sequence
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* of operations is complete.
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* - deselect Deselect the device (as necessary)
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* - index Set register index
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* - read Read data from the LCD (auto-incrementing)
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* - write Write data to the LCD (auto-incrementing)
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* - backlight Set the backlight power level (0=OFF; CONFIG_LCD_MAXPOWER=MAX)
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*/
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void (*select)(FAR struct ssd1289_lcd_s *dev);
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void (*deselect)(FAR struct ssd1289_lcd_s *dev);
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void (*index)(FAR struct ssd1289_lcd_s *dev, uint8_t index);
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#ifndef CONFIG_SSD1289_WRONLY
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uint16_t (*read)(FAR struct ssd1289_lcd_s *dev);
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#endif
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void (*write)(FAR struct ssd1289_lcd_s *dev, uint16_t value);
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void (*backlight)(FAR struct ssd1289_lcd_s *dev, int power);
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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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#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: ssd1289_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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EXTERN FAR struct lcd_dev_s *ssd1289_lcdinitialize(FAR struct ssd1289_lcd_s *lcd);
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/**************************************************************************************
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* Name: ssd1289_clear
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*
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* Description:
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* This is a non-standard LCD interface. Because of the various rotations, clearing
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* the display in the normal way by writing a sequences of runs that covers the
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* entire display can be very slow. Here the display is cleared by simply setting
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* all GRAM memory to the specified color.
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*
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**************************************************************************************/
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EXTERN void ssd1289_clear(FAR struct lcd_dev_s *dev, uint16_t color);
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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_SSD1289 */
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#endif /* __INCLUDE_NUTTX_LCD_SSD1289_H */
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