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Add driver for ST7565 that works with NHD‐C12864KGZ display. From Pierre-noel Bouteville.

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Gregory Nutt
2014-11-13 16:03:52 -06:00
parent 9dc834e723
commit 3576e249b5
4 changed files with 1395 additions and 1 deletions
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include/nuttx/lcd/st7565.h
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/****************************************************************************
* include/nuttx/lcd/st7565.h
*
* Definitions for the ST7565 128x64 Dot Matrix LCD
* Driver with C
*
* Copyright (C) 2014 Pierre-noel Bouteville. All rights reserved.
* Author: Pierre-noel Boutevlle <pnb990@gmail.com>
*
* Based on drivers/lcd/st7567.h
*
* Copyright (C) 2013 Zilogic Systems. All rights reserved.
* Author: Manikandan <code@zilogic.com>
*
* Based on include/nuttx/lcd/ug-9664hswag01.h
*
* Copyright (C) 2011-2012 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
#ifndef __INCLUDE_NUTTX_ST7565_H
#define __INCLUDE_NUTTX_ST7565_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <stdbool.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* ST7565 Configuration Settings:
*
* CONFIG_ST7565_NINTERFACES - Specifies the number of physical
* ST7565 devices that will be supported. NOTE: At present, this
* must be undefined or defined to be 1.
*
* Required LCD driver settings:
* CONFIG_LCD_ST7565 - Enable ST7565 support
* CONFIG_LCD_MAXCONTRAST should be 255, but any value >0 and <=255 will be
* accepted.
*/
/* Some important "colors" */
#define ST7565_Y1_BLACK 0
#define ST7565_Y1_WHITE 1
/****************************************************************************
* Public Types
****************************************************************************/
struct st7565_lcd_s
{
/* Interface to control the st7565 like lcd driver
*
* - reset Switch reset pin of LCD (optional but as your risk).
* - select Select the device (as neccessary) before performing any
* operations.
* - deselect Deselect the device (as necessary).
* - cmddata Select command (A0 = 0) or data (A0 = 1) mode .
* - senddata Send data to the LCD driver.
* - backlight Change the backlight level of the connected display.
* In the context of the ili9341 that means change the
* backlight level of the connected LED driver.
* The implementation in detail is part of the platform
* specific sub driver.
*/
void (*reset)(FAR struct st7565_lcd_s *lcd, bool on);
void (*select)(FAR struct st7565_lcd_s *lcd);
void (*deselect)(FAR struct st7565_lcd_s *lcd);
void (*cmddata)(FAR struct st7565_lcd_s *lcd, const uint8_t cmd);
int (*senddata)(FAR struct st7565_lcd_s *lcd, FAR const uint8_t *data,
int size);
int (*backlight)(FAR struct st7565_lcd_s *lcd, int level);
/* MCU interface specific data following */
};
/****************************************************************************
* Public Data
****************************************************************************/
#ifdef __cplusplus
extern "C"
{
#endif
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
/****************************************************************************
* Name: st7565_initialize
*
* Description:
* Initialize the ST7565 video hardware. The initial state of the
* LCD is fully initialized, display memory cleared, and the LCD ready
* to use, but with the power setting at 0 (full off == sleep mode).
*
* Input Parameters:
*
* spi - A reference to the SPI driver instance.
* devno - A value in the range of 0 throw CONFIG_ST7565_NINTERFACES-1.
* This allows support for multiple LCD devices.
*
* Returned Value:
*
* On success, this function returns a reference to the LCD object for
* the specified LCD. NULL is returned on any failure.
*
****************************************************************************/
FAR struct lcd_dev_s *st7565_initialize(FAR struct st7565_lcd_s *lcd,
unsigned int devno);
#ifdef __cplusplus
}
#endif
#endif /* __INCLUDE_NUTTX_ST7567_H */