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/************************************************************************************** |
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* drivers/lcd/nokia6100.c |
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* Nokia 6100 LCD Display Driver |
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* |
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* Copyright (C) 2010-2011 Gregory Nutt. All rights reserved. |
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* Author: Gregory Nutt <gnutt@nuttx.org> |
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* |
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* References: |
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* "Nokia 6100 LCD Display Driver," Revision 1, James P. Lynch ("Nokia 6100 LCD |
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* Display Driver.pdf") |
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* "S1D15G0D08B000," Seiko Epson Corportation, 2002. |
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* "Data Sheet, PCF8833 STN RGB 132x132x3 driver," Phillips, 2003 Feb 14. |
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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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/************************************************************************************** |
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* Included Files |
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**************************************************************************************/ |
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#include <nuttx/config.h> |
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#include <sys/types.h> |
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#include <stdint.h> |
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#include <stdbool.h> |
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#include <string.h> |
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#include <errno.h> |
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#include <debug.h> |
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#include <nuttx/arch.h> |
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#include <nuttx/spi.h> |
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#include <nuttx/lcd/lcd.h> |
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#include <nuttx/lcd/nokia6100.h> |
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#ifdef CONFIG_NOKIA6100_PCF8833 |
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# include "pcf8833.h" |
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#endif |
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#ifdef CONFIG_NOKIA6100_S1D15G10 |
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# include "s1d15g10.h" |
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#endif |
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/************************************************************************************** |
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* Pre-processor Definitions |
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**************************************************************************************/ |
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/* Configuration **********************************************************************/ |
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/* Verify that all configuration requirements have been met */ |
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/* Nokia 6100 Configuration Settings: |
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* |
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* CONFIG_NOKIA6100_SPIMODE - Controls the SPI mode |
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* CONFIG_NOKIA6100_FREQUENCY - Define to use a different bus frequency |
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* CONFIG_NOKIA6100_NINTERFACES - Specifies the number of physical Nokia 6100 devices that |
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* will be supported. |
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* CONFIG_NOKIA6100_BPP - Device supports 8, 12, and 16 bits per pixel. |
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* CONFIG_NOKIA6100_S1D15G10 - Selects the Epson S1D15G10 display controller |
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* CONFIG_NOKIA6100_PCF8833 - Selects the Phillips PCF8833 display controller |
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* CONFIG_NOKIA6100_BLINIT - Initial backlight setting |
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* |
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* The following may need to be tuned for your hardware: |
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* CONFIG_NOKIA6100_INVERT - Display inversion, 0 or 1, Default: 1 |
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* CONFIG_NOKIA6100_MY - Display row direction, 0 or 1, Default: 0 |
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* CONFIG_NOKIA6100_MX - Display column direction, 0 or 1, Default: 1 |
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* CONFIG_NOKIA6100_V - Display address direction, 0 or 1, Default: 0 |
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* CONFIG_NOKIA6100_ML - Display scan direction, 0 or 1, Default: 0 |
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* CONFIG_NOKIA6100_RGBORD - Display RGB order, 0 or 1, Default: 0 |
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* |
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* Required LCD driver settings: |
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* CONFIG_LCD_NOKIA6100 - Enable Nokia 6100 support |
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* CONFIG_LCD_MAXCONTRAST - must be 63 with the Epson controller and 127 with |
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* the Phillips controller. |
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* CONFIG_LCD_MAXPOWER - Maximum value of backlight setting. The backlight control is |
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* managed outside of the 6100 driver so this value has no meaning to the driver. |
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*/ |
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/* Mode 0,0 should be use. However, somtimes you need to tinker with these things. */ |
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#ifndef CONFIG_NOKIA6100_SPIMODE |
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# define CONFIG_NOKIA6100_SPIMODE SPIDEV_MODE0 |
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#endif |
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/* Default frequency: 1Mhz */ |
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#ifndef CONFIG_NOKIA6100_FREQUENCY |
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# define CONFIG_NOKIA6100_FREQUENCY 1000000 |
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#endif |
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/* CONFIG_NOKIA6100_NINTERFACES determines the number of physical interfaces |
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* that will be supported. |
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*/ |
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#ifndef CONFIG_NOKIA6100_NINTERFACES |
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# define CONFIG_NOKIA6100_NINTERFACES 1 |
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#endif |
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#if CONFIG_NOKIA6100_NINTERFACES != 1 |
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# error "This implementation supports only a single LCD device" |
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#endif |
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/* Only support for 8 and 12 BPP currently implemented */ |
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#if !defined(CONFIG_NOKIA6100_BPP) |
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# warning "Assuming 8BPP" |
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# define CONFIG_NOKIA6100_BPP 8 |
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#endif |
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#if CONFIG_NOKIA6100_BPP != 8 && CONFIG_NOKIA6100_BPP != 12 |
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# if CONFIG_NOKIA6100_BPP == 16 |
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# error "Support for 16BPP no yet implemented" |
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# else |
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# error "LCD supports only 8, 12, and 16BPP" |
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# endif |
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#endif |
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#if CONFIG_NOKIA6100_BPP == 8 |
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# ifdef CONFIG_NX_DISABLE_8BPP |
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# warning "8-bit pixel support needed" |
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# endif |
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#elif CONFIG_NOKIA6100_BPP == 12 |
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# if defined(CONFIG_NX_DISABLE_12BPP) || !defined(CONFIG_NX_PACKEDMSFIRST) |
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# warning "12-bit, big-endian pixel support needed" |
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# endif |
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#elif CONFIG_NOKIA6100_BPP == 16 |
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# ifdef CONFIG_NX_DISABLE_16BPP |
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# warning "16-bit pixel support needed" |
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# endif |
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#endif |
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/* Exactly one LCD controller must be selected. "The Olimex boards have both display |
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* controllers possible; if the LCD has a GE-12 sticker on it, it<EFBFBD>s a Philips PCF8833. |
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* If it has a GE-8 sticker, it<EFBFBD>s an Epson controller." |
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*/ |
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#if defined(CONFIG_NOKIA6100_S1D15G10) && defined(CONFIG_NOKIA6100_PCF8833) |
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# error "Both CONFIG_NOKIA6100_S1D15G10 and CONFIG_NOKIA6100_PCF8833 are defined" |
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#endif |
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#if !defined(CONFIG_NOKIA6100_S1D15G10) && !defined(CONFIG_NOKIA6100_PCF8833) |
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# error "One of CONFIG_NOKIA6100_S1D15G10 or CONFIG_NOKIA6100_PCF8833 must be defined" |
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#endif |
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/* Delay geometry defaults */ |
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#ifndef CONFIG_NOKIA6100_INVERT |
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# define CONFIG_NOKIA6100_INVERT 1 |
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#endif |
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#ifndef CONFIG_NOKIA6100_MY |
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# define CONFIG_NOKIA6100_MY 0 |
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#endif |
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#ifndef CONFIG_NOKIA6100_MX |
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# define CONFIG_NOKIA6100_MX 1 |
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#endif |
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#ifndef CONFIG_NOKIA6100_V |
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# define CONFIG_NOKIA6100_V 0 |
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#endif |
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#ifndef CONFIG_NOKIA6100_ML |
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# define CONFIG_NOKIA6100_ML 0 |
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#endif |
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#ifndef CONFIG_NOKIA6100_RGBORD |
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# define CONFIG_NOKIA6100_RGBORD 0 |
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#endif |
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/* Check contrast selection */ |
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#ifdef CONFIG_NOKIA6100_S1D15G10 |
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# if !defined(CONFIG_LCD_MAXCONTRAST) |
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# define CONFIG_LCD_MAXCONTRAST 63 |
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# endif |
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# if CONFIG_LCD_MAXCONTRAST != 63 |
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# error "CONFIG_LCD_MAXCONTRAST must be 63 with the Epson LCD controller" |
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# endif |
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# define NOKIA_DEFAULT_CONTRAST 32 |
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#else /* CONFIG_NOKIA6100_PCF8833 */ |
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# if !defined(CONFIG_LCD_MAXCONTRAST) |
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# define CONFIG_LCD_MAXCONTRAST 127 |
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# endif |
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# if CONFIG_LCD_MAXCONTRAST != 127 |
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# error "CONFIG_LCD_MAXCONTRAST must be 127 with the Phillips LCD controller" |
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# endif |
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# define NOKIA_DEFAULT_CONTRAST 48 |
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#endif |
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/* Check initial backlight setting */ |
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#ifndef CONFIG_NOKIA6100_BLINIT |
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# define CONFIG_NOKIA6100_BLINIT (NOKIA_DEFAULT_CONTRAST/3) |
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#endif |
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/* Word width must be 9 bits */ |
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#if defined(CONFIG_NOKIA6100_WORDWIDTH) && CONFIG_NOKIA6100_WORDWIDTH != 9 |
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# error "CONFIG_NOKIA6100_WORDWIDTH must be 9" |
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#endif |
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#ifndef CONFIG_NOKIA6100_WORDWIDTH |
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# define CONFIG_NOKIA6100_WORDWIDTH 9 |
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#endif |
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/* If bit 9 is set, the byte is data; clear for commands */ |
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#define NOKIA_LCD_DATA (1 << 8) |
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/* Define CONFIG_LCD_REGDEBUG to enable register-level debug output. |
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* (Verbose debug must also be enabled) |
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*/ |
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#ifndef CONFIG_DEBUG |
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# undef CONFIG_DEBUG_VERBOSE |
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# undef CONFIG_DEBUG_GRAPHICS |
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#endif |
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#ifndef CONFIG_DEBUG_VERBOSE |
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# undef CONFIG_LCD_REGDEBUG |
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#endif |
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/* Controller independent definitions *************************************************/ |
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#ifdef CONFIG_NOKIA6100_PCF8833 |
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# define LCD_NOP PCF8833_NOP |
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# define LCD_RAMWR PCF8833_RAMWR |
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# define LCD_PASET PCF8833_PASET |
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# define LCD_CASET PCF8833_CASET |
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#endif |
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#ifdef CONFIG_NOKIA6100_S1D15G10 |
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# define LCD_NOP S1D15G10_NOP |
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# define LCD_RAMWR S1D15G10_RAMWR |
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# define LCD_PASET S1D15G10_PASET |
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# define LCD_CASET S1D15G10_CASET |
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#endif |
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/* Color Properties *******************************************************************/ |
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/* Display Resolution */ |
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#define NOKIA_XRES 132 |
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#define NOKIA_YRES 132 |
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/* Color depth and format */ |
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#if CONFIG_NOKIA6100_BPP == 8 |
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# define NOKIA_BPP 8 |
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# define NOKIA_COLORFMT FB_FMT_RGB8_332 |
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# define NOKIA_STRIDE NOKIA_XRES |
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# define NOKIA_PIX2BYTES(p) (p) |
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#elif CONFIG_NOKIA6100_BPP == 12 |
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# define NOKIA_BPP 12 |
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# define NOKIA_COLORFMT FB_FMT_RGB12_444 |
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# define NOKIA_STRIDE ((3*NOKIA_XRES+1)/2) |
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# define NOKIA_PIX2BYTES(p) ((3*(p)+1)/2) |
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#elif CONFIG_NOKIA6100_BPP == 16 |
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# define NOKIA_BPP 16 |
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# define NOKIA_COLORFMT FB_FMT_RGB16_565 |
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# define NOKIA_STRIDE (2*NOKIA_XRES) |
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# define NOKIA_PIX2BYTES(p) (2*(p)) |
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#endif |
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/* Handle any potential strange behavior at edges */ |
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#if 0 /* REVISIT */ |
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#define NOKIA_PGBIAS 2 /* May not be necessary */ |
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#define NOKIA_COLBIAS 0 |
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#define NOKIA_XBIAS 2 /* May not be necessary, if so need to subtract from XRES */ |
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#define NOKIA_YBIAS 0 |
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#else |
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#define NOKIA_PGBIAS 0 |
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#define NOKIA_COLBIAS 0 |
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#define NOKIA_XBIAS 0 |
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#define NOKIA_YBIAS 0 |
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#endif |
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#define NOKIA_ENDPAGE 131 |
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#define NOKIA_ENDCOL 131 |
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/* Debug ******************************************************************************/ |
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#ifdef CONFIG_LCD_REGDEBUG |
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# define lcddbg(format, arg...) llvdbg(format, ##arg) |
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#else |
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# define lcddbg(x...) |
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#endif |
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/************************************************************************************** |
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* Private Type Definition |
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**************************************************************************************/ |
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/* This structure describes the state of this driver */ |
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struct nokia_dev_s |
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{ |
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/* Publically visible device structure */ |
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struct lcd_dev_s dev; |
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/* Private LCD-specific information follows */ |
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FAR struct spi_dev_s *spi; /* Contained SPI driver instance */ |
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uint8_t contrast; /* Current contrast setting */ |
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uint8_t power; /* Current power (backlight) setting */ |
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}; |
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/************************************************************************************** |
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* Private Function Protototypes |
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**************************************************************************************/ |
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/* SPI support */ |
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static inline void nokia_configspi(FAR struct spi_dev_s *spi); |
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#ifdef CONFIG_SPI_OWNBUS |
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static inline void nokia_select(FAR struct spi_dev_s *spi); |
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static inline void nokia_deselect(FAR struct spi_dev_s *spi); |
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#else |
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static void nokia_select(FAR struct spi_dev_s *spi); |
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static void nokia_deselect(FAR struct spi_dev_s *spi); |
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#endif |
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static void nokia_sndcmd(FAR struct spi_dev_s *spi, const uint8_t cmd); |
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static void nokia_cmdarray(FAR struct spi_dev_s *spi, int len, const uint8_t *cmddata); |
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static void nokia_clrram(FAR struct spi_dev_s *spi); |
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/* LCD Data Transfer Methods */ |
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static int nokia_putrun(fb_coord_t row, fb_coord_t col, FAR const uint8_t *buffer, |
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size_t npixels); |
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static int nokia_getrun(fb_coord_t row, fb_coord_t col, FAR uint8_t *buffer, |
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size_t npixels); |
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/* LCD Configuration */ |
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static int nokia_getvideoinfo(FAR struct lcd_dev_s *dev, |
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FAR struct fb_videoinfo_s *vinfo); |
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static int nokia_getplaneinfo(FAR struct lcd_dev_s *dev, unsigned int planeno, |
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FAR struct lcd_planeinfo_s *pinfo); |
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/* LCD RGB Mapping */ |
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#ifdef CONFIG_FB_CMAP |
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# error "RGB color mapping not supported by this driver" |
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#endif |
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/* Cursor Controls */ |
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#ifdef CONFIG_FB_HWCURSOR |
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# error "Cursor control not supported by this driver" |
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#endif |
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/* LCD Specific Controls */ |
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static int nokia_getpower(struct lcd_dev_s *dev); |
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static int nokia_setpower(struct lcd_dev_s *dev, int power); |
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static int nokia_getcontrast(struct lcd_dev_s *dev); |
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static int nokia_setcontrast(struct lcd_dev_s *dev, unsigned int contrast); |
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/* Initialization */ |
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static int nokia_initialize(struct nokia_dev_s *priv); |
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/************************************************************************************** |
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* Private Data |
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**************************************************************************************/ |
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/* This is working memory allocated by the LCD driver for each LCD device |
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* and for each color plane. This memory will hold one raster line of data. |
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* The size of the allocated run buffer must therefore be at least |
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* (bpp * xres / 8). Actual alignment of the buffer must conform to the |
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* bitwidth of the underlying pixel type. |
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* |
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* If there are multiple planes, they may share the same working buffer |
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* because different planes will not be operate on concurrently. However, |
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* if there are multiple LCD devices, they must each have unique run buffers. |
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*/ |
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#if CONFIG_NOKIA6100_BPP == 8 |
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static uint8_t g_runbuffer[NOKIA_XRES]; |
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#elif CONFIG_NOKIA6100_BPP == 12 |
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static uint8_t g_runbuffer[(3*NOKIA_XRES+1)/2]; |
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#else /* CONFIG_NOKIA6100_BPP == 16 */ |
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static uint16_t g_runbuffer[NOKIA_XRES]; |
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#endif |
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/* g_rowbuf is another buffer, but used internally by the Nokia 6100 driver in order |
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* expand the pixel data into 9-bit data needed by the LCD. There are some |
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* customizations that would eliminate the need for this extra buffer and for the |
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* extra expansion/copy, but those customizations would require a special, non-standard |
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* SPI driver that could expand 8- to 9-bit data on the fly. |
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*/ |
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static uint16_t g_rowbuf[NOKIA_STRIDE+1]; |
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/* Device Driver Data Structures ******************************************************/ |
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/* This structure describes the overall LCD video controller */ |
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static const struct fb_videoinfo_s g_videoinfo = |
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{ |
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.fmt = NOKIA_COLORFMT, /* Color format: RGB16-565: RRRR RGGG GGGB BBBB */ |
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.xres = NOKIA_XRES, /* Horizontal resolution in pixel columns */ |
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.yres = NOKIA_YRES, /* Vertical resolution in pixel rows */ |
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.nplanes = 1, /* Number of color planes supported */ |
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}; |
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/* This is the standard, NuttX Plane information object */ |
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static const struct lcd_planeinfo_s g_planeinfo = |
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{ |
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.putrun = nokia_putrun, /* Put a run into LCD memory */ |
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.getrun = nokia_getrun, /* Get a run from LCD memory */ |
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.buffer = (uint8_t*)g_runbuffer, /* Run scratch buffer */ |
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.bpp = NOKIA_BPP, /* Bits-per-pixel */ |
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}; |
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/* This is the standard, NuttX LCD driver object */ |
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static struct nokia_dev_s g_lcddev = |
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{ |
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.dev = |
|
|
{ |
|
|
/* LCD Configuration */ |
|
|
|
|
|
.getvideoinfo = nokia_getvideoinfo, |
|
|
.getplaneinfo = nokia_getplaneinfo, |
|
|
|
|
|
/* LCD RGB Mapping -- Not supported */ |
|
|
/* Cursor Controls -- Not supported */ |
|
|
|
|
|
/* LCD Specific Controls */ |
|
|
|
|
|
.getpower = nokia_getpower, |
|
|
.setpower = nokia_setpower, |
|
|
.getcontrast = nokia_getcontrast, |
|
|
.setcontrast = nokia_setcontrast, |
|
|
}, |
|
|
}; |
|
|
|
|
|
/* LCD Command Strings ****************************************************************/ |
|
|
|
|
|
#ifdef CONFIG_NOKIA6100_S1D15G10 |
|
|
/* Display control: |
|
|
* P1: Specifies the CL dividing ratio, F1 and F2 drive-pattern switching period. |
|
|
* P2: Specifies the duty of the module on block basis |
|
|
* P3: Specify number of lines to be inversely highlighted on LCD panel |
|
|
* P4: 0: Dispersion P40= 1: Non-dispersion |
|
|
*/ |
|
|
|
|
|
#if 1 // CONFIG_NOKIA6100_BPP == 12 |
|
|
static const uint8_t g_disctl[] = |
|
|
{ |
|
|
S1D15G10_DISCTL, /* Display control */ |
|
|
DISCTL_CLDIV_2|DISCTL_PERIOD_8, /* P1: Divide clock by 2; switching period = 8 */ |
|
|
//DISCTL_CLDIV_NONE|DISCTL_PERIOD_8, /* P1: No clock division; switching period = 8 */ |
|
|
32, /* P2: nlines/4 - 1 = 132/4 - 1 = 32 */ |
|
|
0, /* P3: No inversely highlighted lines */ |
|
|
0 /* P4: No disperion */ |
|
|
}; |
|
|
#else /* CONFIG_NOKIA6100_BPP == 8 */ |
|
|
static const uint8_t g_disctl[] = |
|
|
{ |
|
|
S1D15G10_DISCTL, /* Display control */ |
|
|
DISCTL_CLDIV_2|DISCTL_PERIOD_FLD, /* P1: Divide clock by 2; switching period = field */ |
|
|
32, /* P2: nlines/4 - 1 = 132/4 - 1 = 32 */ |
|
|
0, /* P3: No inversely highlighted lines */ |
|
|
0 /* P4: No disperion */ |
|
|
}; |
|
|
#endif |
|
|
|
|
|
/* Common scan direction: |
|
|
* P1: Cpecify the common output scan direction. |
|
|
*/ |
|
|
|
|
|
static const uint8_t g_comscn[] = |
|
|
{ |
|
|
S1D15G10_COMSCN, /* Common scan direction */ |
|
|
1 /* 0x01 = Scan 1->68, 132<-69 */ |
|
|
}; |
|
|
|
|
|
/* Power control: |
|
|
* P1: Turn on or off the liquid crystal driving power circuit, booster/step-down |
|
|
* circuits and voltage follower circuit. |
|
|
*/ |
|
|
|
|
|
static const uint8_t g_pwrctr[] = |
|
|
{ |
|
|
S1D15G10_PWRCTR, /* Power control */ |
|
|
PWCTR_REFVOLTAGE|PWCTR_REGULATOR|PWCTR_BOOSTER2|PWCTR_BOOSTER1 |
|
|
}; |
|
|
|
|
|
/* Data control: |
|
|
* P1: Specify the normal or inverse display of the page address and also to specify |
|
|
* the page address scanning direction |
|
|
* P2: RGB sequence |
|
|
* P3: Grayscale setup |
|
|
*/ |
|
|
|
|
|
static const uint8_t g_datctl[] = |
|
|
{ |
|
|
S1D15G10_DATCTL, /* Data control */ |
|
|
0 |
|
|
#if CONFIG_NOKIA6100_MY != 0 /* Display row direction */ |
|
|
|DATCTL_PGADDR_INV /* Page address inverted */ |
|
|
#endif |
|
|
#if CONFIG_NOKIA6100_MX != 0 /* Display column direction */ |
|
|
|DATCTL_COLADDR_REV /* Column address reversed */ |
|
|
#endif |
|
|
#if CONFIG_NOKIA6100_V != 0 /* Display address direction */ |
|
|
|DATCTL_ADDR_PGDIR /* Address scan in page direction */ |
|
|
#endif |
|
|
, |
|
|
#if CONFIG_NOKIA6100_RGBORD != 0 |
|
|
DATCTL_BGR, /* RGB->BGR */ |
|
|
#else |
|
|
0, /* RGB->RGB */ |
|
|
#endif |
|
|
#if CONFIG_NOKIA6100_BPP == 8 |
|
|
DATCTL_8GRAY /* Selects 8-bit color */ |
|
|
#elif CONFIG_NOKIA6100_BPP == 12 |
|
|
DATCTL_16GRAY_A /* Selects 16-bit color, Type A */ |
|
|
#else |
|
|
# error "16-bit mode not yet implemented" |
|
|
#endif |
|
|
}; |
|
|
|
|
|
/* Voltage control (contrast setting): |
|
|
* P1: Volume value |
|
|
* P2: Resistance ratio |
|
|
* (May need to be tuned for individual displays) |
|
|
*/ |
|
|
|
|
|
static const uint8_t g_volctr[] = |
|
|
{ |
|
|
S1D15G10_VOLCTR, /* Volume control */ |
|
|
NOKIA_DEFAULT_CONTRAST, /* Volume value */ |
|
|
2 /* Resistance ratio */ |
|
|
}; |
|
|
|
|
|
/* 256-color position set (RGBSET8) */ |
|
|
|
|
|
#if CONFIG_NOKIA6100_BPP == 8 |
|
|
static const uint8_t g_rgbset8[] = |
|
|
{ |
|
|
S1D15G10_RGBSET8, /* 256-color position set */ |
|
|
0, 2, 4, 6, 9, 11, 13, 15, /* Red tones */ |
|
|
0, 2, 4, 6, 9, 11, 13, 15, /* Green tones */ |
|
|
0, 5, 10, 15 /* Blue tones */ |
|
|
}; |
|
|
#endif |
|
|
|
|
|
/* Page address set (PASET) */ |
|
|
|
|
|
static const uint8_t g_paset[] = |
|
|
{ |
|
|
S1D15G10_PASET, /* Page start address set */ |
|
|
NOKIA_PGBIAS, |
|
|
131 |
|
|
}; |
|
|
|
|
|
/* Column address set (CASET) */ |
|
|
|
|
|
static const uint8_t g_caset[] = |
|
|
{ |
|
|
S1D15G10_CASET, /* Column start address set */ |
|
|
NOKIA_COLBIAS, |
|
|
131 |
|
|
}; |
|
|
#endif /* CONFIG_NOKIA6100_S1D15G10 */ |
|
|
|
|
|
#ifdef CONFIG_NOKIA6100_PCF8833 |
|
|
|
|
|
/* Color interface pixel format (COLMOD) */ |
|
|
|
|
|
#if CONFIG_NOKIA6100_BPP == 12 |
|
|
static const uint8_t g_colmod[] = |
|
|
{ |
|
|
PCF8833_COLMOD, /* Color interface pixel format */ |
|
|
PCF8833_FMT_12BPS /* 12 bits-per-pixel */ |
|
|
}; |
|
|
#else /* CONFIG_NOKIA6100_BPP == 8 */ |
|
|
static const uint8_t g_colmod[] = |
|
|
{ |
|
|
PCF8833_COLMOD, /* Color interface pixel format */ |
|
|
PCF8833_FMT_8BPS /* 8 bits-per-pixel */ |
|
|
}; |
|
|
#endif |
|
|
|
|
|
/* Memory data access control(MADCTL) */ |
|
|
|
|
|
static const uint8_t g_madctl[] = |
|
|
{ |
|
|
PCF8833_MADCTL, /* Memory data access control*/ |
|
|
0 |
|
|
#ifdef CONFIG_NOKIA6100_RGBORD != 0 |
|
|
|MADCTL_RGB /* RGB->BGR */ |
|
|
#endif |
|
|
#ifdef CONFIG_NOKIA6100_MY != 0 /* Display row direction */ |
|
|
|MADCTL_MY /* Mirror Y */ |
|
|
#endif |
|
|
#ifdef CONFIG_NOKIA6100_MX != 0 /* Display column direction */ |
|
|
|MADCTL_MX /* Mirror X */ |
|
|
#endif |
|
|
#ifdef CONFIG_NOKIA6100_V != 0 /* Display address direction */ |
|
|
|MADCTL_V /* ertical RAM write; in Y direction */ |
|
|
#endif |
|
|
#ifdef CONFIG_NOKIA6100_ML != 0 /* Display scan direction */ |
|
|
|MADCTL_LAO /* Line address order bottom to top */ |
|
|
#endif |
|
|
}; |
|
|
|
|
|
/* Set contrast (SETCON) */ |
|
|
|
|
|
static const uint8_t g_setcon[] = |
|
|
{ |
|
|
PCF8833_SETCON, /* Set contrast */ |
|
|
NOKIA_DEFAULT_CONTRAST |
|
|
}; |
|
|
|
|
|
#endif /* CONFIG_NOKIA6100_PCF8833 */ |
|
|
|
|
|
/************************************************************************************** |
|
|
* Private Functions |
|
|
**************************************************************************************/ |
|
|
|
|
|
/************************************************************************************** |
|
|
* Function: nokia_configspi |
|
|
* |
|
|
* Description: |
|
|
* Configure the SPI for use with the Nokia 6100 |
|
|
* |
|
|
* Parameters: |
|
|
* spi - Reference to the SPI driver structure |
|
|
* |
|
|
* Returned Value: |
|
|
* None |
|
|
* |
|
|
* Assumptions: |
|
|
* |
|
|
**************************************************************************************/ |
|
|
|
|
|
static inline void nokia_configspi(FAR struct spi_dev_s *spi) |
|
|
{ |
|
|
lcddbg("Mode: %d Bits: %d Frequency: %d\n", |
|
|
CONFIG_NOKIA6100_SPIMODE, CONFIG_NOKIA6100_WORDWIDTH, CONFIG_NOKIA6100_FREQUENCY); |
|
|
|
|
|
/* Configure SPI for the Nokia 6100. But only if we own the SPI bus. Otherwise, don't |
|
|
* bother because it might change. |
|
|
*/ |
|
|
|
|
|
#ifdef CONFIG_SPI_OWNBUS |
|
|
SPI_SETMODE(spi, CONFIG_NOKIA6100_SPIMODE); |
|
|
SPI_SETBITS(spi, CONFIG_NOKIA6100_WORDWIDTH); |
|
|
SPI_SETFREQUENCY(spi, CONFIG_NOKIA6100_FREQUENCY) |
|
|
#endif |
|
|
} |
|
|
|
|
|
/************************************************************************************** |
|
|
* Function: nokia_select |
|
|
* |
|
|
* Description: |
|
|
* Select the SPI, locking and re-configuring if necessary |
|
|
* |
|
|
* Parameters: |
|
|
* spi - Reference to the SPI driver structure |
|
|
* |
|
|
* Returned Value: |
|
|
* None |
|
|
* |
|
|
* Assumptions: |
|
|
* |
|
|
**************************************************************************************/ |
|
|
|
|
|
#ifdef CONFIG_SPI_OWNBUS |
|
|
static inline void nokia_select(FAR struct spi_dev_s *spi) |
|
|
{ |
|
|
/* We own the SPI bus, so just select the chip */ |
|
|
|
|
|
lcddbg("SELECTED\n"); |
|
|
SPI_SELECT(spi, SPIDEV_DISPLAY, true); |
|
|
} |
|
|
#else |
|
|
static void nokia_select(FAR struct spi_dev_s *spi) |
|
|
{ |
|
|
/* Select Nokia 6100 chip (locking the SPI bus in case there are multiple |
|
|
* devices competing for the SPI bus |
|
|
*/ |
|
|
|
|
|
lcddbg("SELECTED\n"); |
|
|
SPI_LOCK(spi, true); |
|
|
SPI_SELECT(spi, SPIDEV_DISPLAY, true); |
|
|
|
|
|
/* Now make sure that the SPI bus is configured for the Nokia 6100 (it |
|
|
* might have gotten configured for a different device while unlocked) |
|
|
*/ |
|
|
|
|
|
SPI_SETMODE(spi, CONFIG_NOKIA6100_SPIMODE); |
|
|
SPI_SETBITS(spi, CONFIG_NOKIA6100_WORDWIDTH); |
|
|
SPI_SETFREQUENCY(spi, CONFIG_NOKIA6100_FREQUENCY); |
|
|
} |
|
|
#endif |
|
|
|
|
|
/************************************************************************************** |
|
|
* Function: nokia_deselect |
|
|
* |
|
|
* Description: |
|
|
* De-select the SPI |
|
|
* |
|
|
* Parameters: |
|
|
* spi - Reference to the SPI driver structure |
|
|
* |
|
|
* Returned Value: |
|
|
* None |
|
|
* |
|
|
* Assumptions: |
|
|
* |
|
|
**************************************************************************************/ |
|
|
|
|
|
#ifdef CONFIG_SPI_OWNBUS |
|
|
static inline void nokia_deselect(FAR struct spi_dev_s *spi) |
|
|
{ |
|
|
/* We own the SPI bus, so just de-select the chip */ |
|
|
|
|
|
lcddbg("DE-SELECTED\n"); |
|
|
SPI_SELECT(spi, SPIDEV_DISPLAY, false); |
|
|
} |
|
|
#else |
|
|
static void nokia_deselect(FAR struct spi_dev_s *spi) |
|
|
{ |
|
|
/* De-select Nokia 6100 chip and relinquish the SPI bus. */ |
|
|
|
|
|
lcddbg("DE-SELECTED\n"); |
|
|
SPI_SELECT(spi, SPIDEV_DISPLAY, false); |
|
|
SPI_LOCK(spi, false); |
|
|
} |
|
|
#endif |
|
|
|
|
|
/************************************************************************************** |
|
|
* Name: nokia_sndcmd |
|
|
* |
|
|
* Description: |
|
|
* Send a 1-byte command. |
|
|
* |
|
|
**************************************************************************************/ |
|
|
|
|
|
static void nokia_sndcmd(FAR struct spi_dev_s *spi, const uint8_t cmd) |
|
|
{ |
|
|
/* Select the LCD */ |
|
|
|
|
|
lcddbg("cmd: %02x\n", cmd); |
|
|
nokia_select(spi); |
|
|
|
|
|
/* Send the command. Bit 8 == 0 denotes a command */ |
|
|
|
|
|
(void)SPI_SEND(spi, (uint16_t)cmd); |
|
|
|
|
|
/* De-select the LCD */ |
|
|
|
|
|
nokia_deselect(spi); |
|
|
} |
|
|
|
|
|
/************************************************************************************** |
|
|
* Name: nokia_cmddata |
|
|
* |
|
|
* Description: |
|
|
* Send a 1-byte command followed by datlen data bytes. |
|
|
* |
|
|
**************************************************************************************/ |
|
|
|
|
|
static void nokia_cmddata(FAR struct spi_dev_s *spi, uint8_t cmd, int datlen, |
|
|
const uint8_t *data) |
|
|
{ |
|
|
uint16_t *rowbuf = g_rowbuf; |
|
|
int i; |
|
|
|
|
|
lcddbg("cmd: %02x datlen: %d\n", cmd, datlen); |
|
|
DEBUGASSERT(datlen <= NOKIA_STRIDE); |
|
|
|
|
|
/* Copy the command into the line buffer. Bit 8 == 0 denotes a command. */ |
|
|
|
|
|
*rowbuf++ = cmd; |
|
|
|
|
|
/* Copy any data after the command into the line buffer */ |
|
|
|
|
|
for (i = 0; i < datlen; i++) |
|
|
{ |
|
|
/* Bit 8 == 1 denotes data */ |
|
|
|
|
|
*rowbuf++ = (uint16_t)*data++ | NOKIA_LCD_DATA; |
|
|
} |
|
|
|
|
|
/* Select the LCD */ |
|
|
|
|
|
nokia_select(spi); |
|
|
|
|
|
/* Send the line buffer. */ |
|
|
|
|
|
(void)SPI_SNDBLOCK(spi, g_rowbuf, datlen+1); |
|
|
|
|
|
/* De-select the LCD */ |
|
|
|
|
|
nokia_deselect(spi); |
|
|
} |
|
|
|
|
|
/************************************************************************************** |
|
|
* Name: nokia_ramwr |
|
|
* |
|
|
* Description: |
|
|
* Send a RAMWR command followed by datlen data bytes. |
|
|
* |
|
|
**************************************************************************************/ |
|
|
|
|
|
static void nokia_ramwr(FAR struct spi_dev_s *spi, int datlen, const uint8_t *data) |
|
|
{ |
|
|
nokia_cmddata(spi, LCD_RAMWR, datlen, data); |
|
|
} |
|
|
|
|
|
/************************************************************************************** |
|
|
* Name: nokia_cmdarray |
|
|
* |
|
|
* Description: |
|
|
* Send a RAMWR command followed by len-1 data bytes. |
|
|
* |
|
|
**************************************************************************************/ |
|
|
|
|
|
static void nokia_cmdarray(FAR struct spi_dev_s *spi, int len, const uint8_t *cmddata) |
|
|
{ |
|
|
#ifdef CONFIG_LCD_REGDEBUG |
|
|
int i; |
|
|
|
|
|
for (i = 0; i < len; i++) |
|
|
{ |
|
|
lcddbg("cmddata[%d]: %02x\n", i, cmddata[i]); |
|
|
} |
|
|
#endif |
|
|
nokia_cmddata(spi, cmddata[0], len-1, &cmddata[1]); |
|
|
} |
|
|
|
|
|
/************************************************************************************** |
|
|
* Name: nokia_clrram |
|
|
* |
|
|
* Description: |
|
|
* Send a 1-byte command followed by len-1 data bytes. |
|
|
* |
|
|
**************************************************************************************/ |
|
|
|
|
|
static void nokia_clrram(FAR struct spi_dev_s *spi) |
|
|
{ |
|
|
uint16_t *rowbuf = g_rowbuf; |
|
|
int i; |
|
|
|
|
|
/* Set all zero data in the line buffer */ |
|
|
|
|
|
for (i = 0; i < NOKIA_STRIDE; i++) |
|
|
{ |
|
|
/* Bit 8 == 1 denotes data */ |
|
|
|
|
|
*rowbuf++ = NOKIA_LCD_DATA; |
|
|
} |
|
|
|
|
|
/* Select the LCD and send the RAMWR command */ |
|
|
|
|
|
nokia_select(spi); |
|
|
SPI_SEND(spi, LCD_RAMWR); |
|
|
|
|
|
/* Send the line buffer, once for each row. */ |
|
|
|
|
|
for (i = 0; i < NOKIA_YRES; i++) |
|
|
{ |
|
|
(void)SPI_SNDBLOCK(spi, g_rowbuf, NOKIA_STRIDE); |
|
|
} |
|
|
|
|
|
/* De-select the LCD */ |
|
|
|
|
|
nokia_deselect(spi); |
|
|
} |
|
|
|
|
|
/************************************************************************************** |
|
|
* Name: nokia_putrun |
|
|
* |
|
|
* Description: |
|
|
* This method can be used to write a partial raster line to the LCD: |
|
|
* |
|
|
* row - Starting row to write to (range: 0 <= row < yres) |
|
|
* col - Starting column to write to (range: 0 <= col <= xres-npixels) |
|
|
* buffer - The buffer containing the run to be written to the LCD |
|
|
* npixels - The number of pixels to write to the LCD |
|
|
* (range: 0 < npixels <= xres-col) |
|
|
* |
|
|
**************************************************************************************/ |
|
|
|
|
|
static int nokia_putrun(fb_coord_t row, fb_coord_t col, FAR const uint8_t *buffer, |
|
|
size_t npixels) |
|
|
{ |
|
|
struct nokia_dev_s *priv = &g_lcddev; |
|
|
FAR struct spi_dev_s *spi = priv->spi; |
|
|
uint16_t cmd[3]; |
|
|
|
|
|
gvdbg("row: %d col: %d npixels: %d\n", row, col, npixels); |
|
|
|
|
|
#if NOKIA_XBIAS > 0 |
|
|
col += NOKIA_XBIAS; |
|
|
#endif |
|
|
#if NOKIA_YBIAS > 0 |
|
|
row += NOKIA_YBIAS; |
|
|
#endif |
|
|
DEBUGASSERT(buffer && col >=0 && (col + npixels) <= NOKIA_XRES && row >= 0 && row < NOKIA_YRES); |
|
|
|
|
|
/* Set up to write the run. */ |
|
|
|
|
|
nokia_select(spi); |
|
|
cmd[0] = LCD_PASET; |
|
|
cmd[1] = col | NOKIA_LCD_DATA; |
|
|
cmd[2] = NOKIA_ENDPAGE | NOKIA_LCD_DATA; |
|
|
(void)SPI_SNDBLOCK(spi, cmd, 3); |
|
|
nokia_deselect(spi); |
|
|
|
|
|
/* De-select the LCD */ |
|
|
|
|
|
nokia_select(spi); |
|
|
cmd[0] = LCD_CASET; |
|
|
cmd[1] = row | NOKIA_LCD_DATA; |
|
|
cmd[2] = NOKIA_ENDCOL | NOKIA_LCD_DATA; |
|
|
(void)SPI_SNDBLOCK(spi, cmd, 3); |
|
|
nokia_deselect(spi); |
|
|
|
|
|
/* Then send the run */ |
|
|
|
|
|
nokia_ramwr(spi, NOKIA_PIX2BYTES(npixels), buffer); |
|
|
return OK; |
|
|
} |
|
|
|
|
|
/************************************************************************************** |
|
|
* Name: nokia_getrun |
|
|
* |
|
|
* Description: |
|
|
* This method can be used to read a partial raster line from the LCD: |
|
|
* |
|
|
* row - Starting row to read from (range: 0 <= row < yres) |
|
|
* col - Starting column to read read (range: 0 <= col <= xres-npixels) |
|
|
* buffer - The buffer in which to return the run read from the LCD |
|
|
* npixels - The number of pixels to read from the LCD |
|
|
* (range: 0 < npixels <= xres-col) |
|
|
* |
|
|
**************************************************************************************/ |
|
|
|
|
|
static int nokia_getrun(fb_coord_t row, fb_coord_t col, FAR uint8_t *buffer, |
|
|
size_t npixels) |
|
|
{ |
|
|
gvdbg("row: %d col: %d npixels: %d\n", row, col, npixels); |
|
|
DEBUGASSERT(buffer && ((uintptr_t)buffer & 1) == 0); |
|
|
|
|
|
/* At present, this is a write-only LCD driver */ |
|
|
|
|
|
#warning "Not implemented" |
|
|
return -ENOSYS; |
|
|
} |
|
|
|
|
|
/************************************************************************************** |
|
|
* Name: nokia_getvideoinfo |
|
|
* |
|
|
* Description: |
|
|
* Get information about the LCD video controller configuration. |
|
|
* |
|
|
**************************************************************************************/ |
|
|
|
|
|
static int nokia_getvideoinfo(FAR struct lcd_dev_s *dev, |
|
|
FAR struct fb_videoinfo_s *vinfo) |
|
|
{ |
|
|
DEBUGASSERT(dev && vinfo); |
|
|
gvdbg("fmt: %d xres: %d yres: %d nplanes: %d\n", |
|
|
g_videoinfo.fmt, g_videoinfo.xres, g_videoinfo.yres, g_videoinfo.nplanes); |
|
|
memcpy(vinfo, &g_videoinfo, sizeof(struct fb_videoinfo_s)); |
|
|
return OK; |
|
|
} |
|
|
|
|
|
/************************************************************************************** |
|
|
* Name: nokia_getplaneinfo |
|
|
* |
|
|
* Description: |
|
|
* Get information about the configuration of each LCD color plane. |
|
|
* |
|
|
**************************************************************************************/ |
|
|
|
|
|
static int nokia_getplaneinfo(FAR struct lcd_dev_s *dev, unsigned int planeno, |
|
|
FAR struct lcd_planeinfo_s *pinfo) |
|
|
{ |
|
|
DEBUGASSERT(dev && pinfo && planeno == 0); |
|
|
gvdbg("planeno: %d bpp: %d\n", planeno, g_planeinfo.bpp); |
|
|
memcpy(pinfo, &g_planeinfo, sizeof(struct lcd_planeinfo_s)); |
|
|
return OK; |
|
|
} |
|
|
|
|
|
/************************************************************************************** |
|
|
* Name: nokia_getpower |
|
|
* |
|
|
* Description: |
|
|
* Get the LCD panel power status (0: full off - CONFIG_LCD_MAXPOWER: full on. On |
|
|
* backlit LCDs, this setting may correspond to the backlight setting. |
|
|
* |
|
|
**************************************************************************************/ |
|
|
|
|
|
static int nokia_getpower(struct lcd_dev_s *dev) |
|
|
{ |
|
|
struct nokia_dev_s *priv = (struct nokia_dev_s *)dev; |
|
|
gvdbg("power: %d\n", priv->power); |
|
|
return priv->power; |
|
|
} |
|
|
|
|
|
/************************************************************************************** |
|
|
* Name: nokia_setpower |
|
|
* |
|
|
* Description: |
|
|
* Enable/disable LCD panel power (0: full off - CONFIG_LCD_MAXPOWER: full on). On |
|
|
* backlit LCDs, this setting may correspond to the backlight setting. |
|
|
* |
|
|
**************************************************************************************/ |
|
|
|
|
|
static int nokia_setpower(struct lcd_dev_s *dev, int power) |
|
|
{ |
|
|
struct nokia_dev_s *priv = (struct nokia_dev_s *)dev; |
|
|
int ret; |
|
|
|
|
|
gvdbg("power: %d\n", power); |
|
|
DEBUGASSERT(power <= CONFIG_LCD_MAXPOWER); |
|
|
|
|
|
/* Set new power level. The backlight power is controlled outside of the LCD |
|
|
* assembly and must be managmed by board-specific logic. |
|
|
*/ |
|
|
|
|
|
ret = nokia_backlight(power); |
|
|
if (ret == OK) |
|
|
{ |
|
|
priv->power = power; |
|
|
} |
|
|
return ret; |
|
|
} |
|
|
|
|
|
/************************************************************************************** |
|
|
* Name: nokia_getcontrast |
|
|
* |
|
|
* Description: |
|
|
* Get the current contrast setting (0-CONFIG_LCD_MAXCONTRAST). |
|
|
* |
|
|
**************************************************************************************/ |
|
|
|
|
|
static int nokia_getcontrast(struct lcd_dev_s *dev) |
|
|
{ |
|
|
struct nokia_dev_s *priv = (struct nokia_dev_s *)dev; |
|
|
gvdbg("contrast: %d\n", priv->contrast); |
|
|
return priv->contrast; |
|
|
} |
|
|
|
|
|
/************************************************************************************** |
|
|
* Name: nokia_setcontrast |
|
|
* |
|
|
* Description: |
|
|
* Set LCD panel contrast (0-CONFIG_LCD_MAXCONTRAST). |
|
|
* |
|
|
**************************************************************************************/ |
|
|
|
|
|
static int nokia_setcontrast(struct lcd_dev_s *dev, unsigned int contrast) |
|
|
{ |
|
|
struct nokia_dev_s *priv = (struct nokia_dev_s *)dev; |
|
|
|
|
|
if (contrast < CONFIG_LCD_MAXCONTRAST) |
|
|
{ |
|
|
#ifdef CONFIG_NOKIA6100_S1D15G10 |
|
|
while (priv->contrast < contrast) |
|
|
{ |
|
|
nokia_sndcmd(priv->spi, S1D15G10_VOLUP); |
|
|
priv->contrast++; |
|
|
} |
|
|
while (priv->contrast > contrast) |
|
|
{ |
|
|
nokia_sndcmd(priv->spi, S1D15G10_VOLDOWN); |
|
|
priv->contrast--; |
|
|
} |
|
|
#else /* CONFIG_NOKIA6100_PCF8833 */ |
|
|
uint8_t cmd[2]; |
|
|
|
|
|
cmd[0] = PCF8833_SETCON; |
|
|
cmd[1] = priv->contrast; |
|
|
nokia_sndarry(priv->spi, 2, cmd); |
|
|
priv->contrast = contrast; |
|
|
#endif |
|
|
} |
|
|
|
|
|
gvdbg("contrast: %d\n", contrast); |
|
|
return -ENOSYS; |
|
|
} |
|
|
|
|
|
/************************************************************************************** |
|
|
* Name: nokia_initialize |
|
|
* |
|
|
* Description: |
|
|
* Initialize the LCD controller. |
|
|
* |
|
|
**************************************************************************************/ |
|
|
|
|
|
#ifdef CONFIG_NOKIA6100_S1D15G10 |
|
|
static int nokia_initialize(struct nokia_dev_s *priv) |
|
|
{ |
|
|
struct spi_dev_s *spi = priv->spi; |
|
|
|
|
|
/* Configure the display */ |
|
|
|
|
|
nokia_cmdarray(spi, sizeof(g_disctl), g_disctl); /* Display control */ |
|
|
nokia_cmdarray(spi, sizeof(g_comscn), g_comscn); /* Common scan direction */ |
|
|
nokia_sndcmd(spi, S1D15G10_OSCON); /* Internal oscilator ON */ |
|
|
nokia_sndcmd(spi, S1D15G10_SLPOUT); /* Sleep out */ |
|
|
nokia_cmdarray(spi, sizeof(g_volctr), g_volctr); /* Volume control (contrast) */ |
|
|
nokia_cmdarray(spi, sizeof(g_pwrctr), g_pwrctr); /* Turn on voltage regulators */ |
|
|
up_mdelay(100); |
|
|
#ifdef CONFIG_NOKIA6100_INVERT |
|
|
nokia_sndcmd(spi, S1D15G10_DISINV); /* Invert display */ |
|
|
#else |
|
|
nokia_sndcmd(spi, S1D15G10_DISNOR); /* Normal display */ |
|
|
#endif |
|
|
nokia_cmdarray(spi, sizeof(g_datctl), g_datctl); /* Data control */ |
|
|
#if CONFIG_NOKIA6100_BPP == 8 |
|
|
nokia_cmdarray(spi, sizeof(g_rgbset8), g_rgbset8); /* Set up color lookup table */ |
|
|
nokia_sndcmd(spi, S1D15G10_NOP); |
|
|
#endif |
|
|
nokia_cmdarray(spi, sizeof(g_paset), g_paset); /* Page address set */ |
|
|
nokia_cmdarray(spi, sizeof(g_paset), g_caset); /* Column address set */ |
|
|
nokia_clrram(spi); |
|
|
nokia_sndcmd(spi, S1D15G10_DISON); /* Display on */ |
|
|
return OK; |
|
|
} |
|
|
#endif |
|
|
|
|
|
#ifdef CONFIG_NOKIA6100_PCF8833 |
|
|
static int nokia_initialize(struct nokia_dev_s *priv) |
|
|
{ |
|
|
struct struct spi_dev_s *spi = priv->spi; |
|
|
|
|
|
nokia_sndcmd(spi, PCF8833_SLEEPOUT); /* Exit sleep mode */ |
|
|
nokia_sndcmd(spi, PCF8833_BSTRON); /* Turn on voltage booster */ |
|
|
#ifdef CONFIG_NOKIA6100_INVERT |
|
|
nokia_sndcmd(spi, PCF8833_INVON); /* Invert display */ |
|
|
#else |
|
|
nokia_sndcmd(spi, PCF8833_INVOFF); /* Don't invert display */ |
|
|
#endif |
|
|
nokia_cmdarray(spi, sizeof(g_madctl), g_madctl); /* Memory data access control */ |
|
|
nokia_cmdarray(spi, sizeof(g_colmod), g_colmod); /* Color interface pixel format */ |
|
|
nokia_cmdarray(spi, sizeof(g_setcon), g_setcon); /* Set contrast */ |
|
|
nokia_sndcmd(spi, PCF8833_NOP); /* No operation */ |
|
|
nokia_clrram(spi); |
|
|
nokia_sndcmd(spi, PCF8833_DISPON); /* Display on */ |
|
|
return OK; |
|
|
} |
|
|
#endif /* CONFIG_NOKIA6100_PCF8833 */ |
|
|
|
|
|
/************************************************************************************** |
|
|
* Public Functions |
|
|
**************************************************************************************/ |
|
|
|
|
|
/************************************************************************************** |
|
|
* Name: nokia_lcdinitialize |
|
|
* |
|
|
* Description: |
|
|
* Initialize the NOKIA6100 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 throuh CONFIG_NOKIA6100_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 *nokia_lcdinitialize(FAR struct spi_dev_s *spi, unsigned int devno) |
|
|
{ |
|
|
struct nokia_dev_s *priv = &g_lcddev; |
|
|
|
|
|
gvdbg("Initializing\n"); |
|
|
DEBUGASSERT(devno == 0); |
|
|
|
|
|
/* Initialize the driver data structure */ |
|
|
|
|
|
priv->spi = spi; /* Save the SPI instance */ |
|
|
priv->contrast = NOKIA_DEFAULT_CONTRAST; /* Initial contrast setting */ |
|
|
|
|
|
/* Configure and enable the LCD controller */ |
|
|
|
|
|
nokia_configspi(spi); |
|
|
if (nokia_initialize(priv) == OK) |
|
|
{ |
|
|
/* Turn on the backlight */ |
|
|
|
|
|
nokia_backlight(CONFIG_NOKIA6100_BLINIT); |
|
|
return &priv->dev; |
|
|
} |
|
|
return NULL; |
|
|
}
|
|
|
|
