1044 lines
32 KiB
C
1044 lines
32 KiB
C
/****************************************************************************
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* drivers/lcd/mio283qt2.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/* This is a driver for the MI0283QT-2 LCD from Multi-Inno Technology Co.,
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* Ltd. This LCD is based on the Himax HX8347-D LCD controller.
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*
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* References:
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* 1) LCD Module Specification, Model :
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* MI0283QT-2, Multi-Inno Technology Co., Ltd., Revision 1.0
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* 2) Data Sheet:
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* HX8347-D(T), 240RGB x 320 dot, 262K color, with internal GRAM, TFT
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* Mobile Single Chip Driver Version 02 March, Doc No. HX8347-D(T)-DS,
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* Himax Technologies, Inc., 2009,
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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/spi.h>
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#include <nuttx/lcd/lcd.h>
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#include <nuttx/lcd/mio283qt2.h>
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#ifdef CONFIG_LCD_MIO283QT2
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Configuration ************************************************************/
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/* Check contrast selection */
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#if !defined(CONFIG_LCD_MAXCONTRAST)
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# define CONFIG_LCD_MAXCONTRAST 1
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#endif
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/* Check power setting */
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#if !defined(CONFIG_LCD_MAXPOWER) || CONFIG_LCD_MAXPOWER < 1
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# define CONFIG_LCD_MAXPOWER 1
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#endif
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#if CONFIG_LCD_MAXPOWER > 255
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# error "CONFIG_LCD_MAXPOWER must be less than 256 to fit in uint8_t"
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#endif
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/* Check orientation */
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#if defined(CONFIG_LCD_PORTRAIT)
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# if defined(CONFIG_LCD_LANDSCAPE) || defined(CONFIG_LCD_RLANDSCAPE) || defined(CONFIG_LCD_RPORTRAIT)
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# error "Cannot define both portrait and any other orientations"
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# endif
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#elif defined(CONFIG_LCD_RPORTRAIT)
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# if defined(CONFIG_LCD_LANDSCAPE) || defined(CONFIG_LCD_RLANDSCAPE)
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# error "Cannot define both rportrait and any other orientations"
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# endif
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#elif defined(CONFIG_LCD_LANDSCAPE)
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# ifdef CONFIG_LCD_RLANDSCAPE
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# error "Cannot define both landscape and any other orientations"
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# endif
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#elif !defined(CONFIG_LCD_RLANDSCAPE)
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# define CONFIG_LCD_LANDSCAPE 1
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#endif
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/* Display/Color Properties *************************************************/
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/* Display Resolution */
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#if defined(CONFIG_LCD_LANDSCAPE) || defined(CONFIG_LCD_RLANDSCAPE)
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# define MIO283QT2_XRES 320
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# define MIO283QT2_YRES 240
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#else
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# define MIO283QT2_XRES 240
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# define MIO283QT2_YRES 320
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#endif
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/* Color depth and format */
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#define MIO283QT2_BPP 16
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#define MIO283QT2_COLORFMT FB_FMT_RGB16_565
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/* Hardware LCD/LCD controller definitions **********************************/
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/* In this driver, I chose to use all literal constants for register address
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* and values. Some recent experiences have shown me that during LCD bringup,
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* it is more important to know the binary values rather than nice, people
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* friendly names. Sad, but true.
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*/
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#define HIMAX_ID 0x0047
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/* LCD Profiles *************************************************************/
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/* Many details of the controller initialization must, unfortunately, vary
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* from LCD to LCD. I have looked at the spec and at three different drivers
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* for LCDs that have MIO283QT2 controllers.
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* I have tried to summarize these differences as "LCD profiles"
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*
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* Most of the differences between LCDs are nothing more than a few minor bit
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* settings. The most significant difference between LCD drivers in is the
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* manner in which the LCD is powered up and in how the power controls are
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* set.
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* My suggestion is that if you have working LCD initialization code, you
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* should simply replace the code in mio283qt2_hwinitialize with your working
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* code.
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*/
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#if defined (CONFIG_MIO283QT2_PROFILE2)
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# undef MIO283QT2_USE_SIMPLE_INIT
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/* PWRCTRL1: AP=smalll-to-medium, DC=Flinex24, BT=+5/-4, DCT=Flinex24 */
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# define PWRCTRL1_SETTING \
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(MIO283QT2_PWRCTRL1_AP_SMMED | MIO283QT2_PWRCTRL1_DC_FLINEx24 | \
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MIO283QT2_PWRCTRL1_BT_p5m4 | MIO283QT2_PWRCTRL1_DCT_FLINEx24)
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/* PWRCTRL2: 5.1v */
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# define PWRCTRL2_SETTING MIO283QT2_PWRCTRL2_VRC_5p1V
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/* PWRCTRL3: x 2.165
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* NOTE:
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* Many drivers have bit 8 set which is not defined in the MIO283QT2 spec.
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*/
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# define PWRCTRL3_SETTING MIO283QT2_PWRCTRL3_VRH_x2p165
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/* PWRCTRL4: VDV=9 + VCOMG */
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# define PWRCTRL4_SETTING (MIO283QT2_PWRCTRL4_VDV(9) | MIO283QT2_PWRCTRL4_VCOMG)
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/* PWRCTRL5: VCM=56 + NOTP */
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# define PWRCTRL5_SETTING (MIO283QT2_PWRCTRL5_VCM(56) | MIO283QT2_PWRCTRL5_NOTP)
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#elif defined (CONFIG_MIO283QT2_PROFILE3)
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# undef MIO283QT2_USE_SIMPLE_INIT
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/* PWRCTRL1: AP=smalll-to-medium, DC=Flinex24, BT=+5/-4, DCT=Flinex24 */
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# define PWRCTRL1_SETTING \
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(MIO283QT2_PWRCTRL1_AP_SMMED | MIO283QT2_PWRCTRL1_DC_FLINEx24 | \
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MIO283QT2_PWRCTRL1_BT_p5m4 | MIO283QT2_PWRCTRL1_DCT_FLINEx24)
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/* PWRCTRL2: 5.1v */
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# define PWRCTRL2_SETTING MIO283QT2_PWRCTRL2_VRC_5p1V
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/* PWRCTRL3: x 2.165
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* NOTE:
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* Many drivers have bit 8 set which is not defined in the MIO283QT2 spec.
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*/
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# define PWRCTRL3_SETTING MIO283QT2_PWRCTRL3_VRH_x2p165
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/* PWRCTRL4: VDV=9 + VCOMG */
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# define PWRCTRL4_SETTING (MIO283QT2_PWRCTRL4_VDV(9) | MIO283QT2_PWRCTRL4_VCOMG)
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/* PWRCTRL5: VCM=56 + NOTP */
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# define PWRCTRL5_SETTING (MIO283QT2_PWRCTRL5_VCM(56) | MIO283QT2_PWRCTRL5_NOTP)
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#else /* if defined (CONFIG_MIO283QT2_PROFILE1) */
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# undef MIO283QT2_USE_SIMPLE_INIT
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# define MIO283QT2_USE_SIMPLE_INIT 1
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/* PWRCTRL1: AP=medium-to-large, DC=Fosc/4, BT=+5/-4, DCT=Fosc/4 */
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# define PWRCTRL1_SETTING \
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(MIO283QT2_PWRCTRL1_AP_MEDLG | MIO283QT2_PWRCTRL1_DC_FOSd4 | \
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MIO283QT2_PWRCTRL1_BT_p5m4 | MIO283QT2_PWRCTRL1_DCT_FOSd4)
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/* PWRCTRL2: 5.3v */
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# define PWRCTRL2_SETTING MIO283QT2_PWRCTRL2_VRC_5p3V
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/* PWRCTRL3: x 2.570
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* NOTE:
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* Many drivers have bit 8 set which is not defined in the MIO283QT2 spec.
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*/
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# define PWRCTRL3_SETTING MIO283QT2_PWRCTRL3_VRH_x2p570
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/* PWRCTRL4: VDV=12 + VCOMG */
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# define PWRCTRL4_SETTING (MIO283QT2_PWRCTRL4_VDV(12) | MIO283QT2_PWRCTRL4_VCOMG)
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/* PWRCTRL5: VCM=60 + NOTP */
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# define PWRCTRL5_SETTING (MIO283QT2_PWRCTRL5_VCM(60) | MIO283QT2_PWRCTRL5_NOTP)
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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 mio283qt2_dev_s
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{
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/* Publicly 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 mio283qt2_lcd_s *lcd; /* The contained platform-specific, LCD interface */
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uint8_t power; /* Current power setting */
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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.
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* 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
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* buffers.
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*/
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uint16_t runbuffer[MIO283QT2_XRES];
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};
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/****************************************************************************
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* Private Function Protototypes
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****************************************************************************/
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/* Low Level LCD access */
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static void mio283qt2_putreg(FAR struct mio283qt2_lcd_s *lcd,
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uint8_t regaddr,
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uint16_t regval);
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#ifndef CONFIG_LCD_NOGETRUN
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static uint16_t mio283qt2_readreg(FAR struct mio283qt2_lcd_s *lcd,
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uint8_t regaddr);
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#endif
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static inline void mio283qt2_gramwrite(FAR struct mio283qt2_lcd_s *lcd,
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uint16_t rgbcolor);
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#ifndef CONFIG_LCD_NOGETRUN
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static inline void mio283qt2_readsetup(FAR struct mio283qt2_lcd_s *lcd,
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FAR uint16_t *accum);
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static inline uint16_t mio283qt2_gramread(FAR struct mio283qt2_lcd_s *lcd,
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FAR uint16_t *accum);
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#endif
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static void mio283qt2_setarea(FAR struct mio283qt2_lcd_s *lcd,
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uint16_t x0, uint16_t y0,
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uint16_t x1, uint16_t y1);
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/* LCD Data Transfer Methods */
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static int mio283qt2_putrun(fb_coord_t row, fb_coord_t col,
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FAR const uint8_t *buffer,
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size_t npixels);
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static int mio283qt2_getrun(fb_coord_t row, fb_coord_t col,
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FAR uint8_t *buffer,
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size_t npixels);
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/* LCD Configuration */
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static int mio283qt2_getvideoinfo(FAR struct lcd_dev_s *dev,
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FAR struct fb_videoinfo_s *vinfo);
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static int mio283qt2_getplaneinfo(FAR struct lcd_dev_s *dev,
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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 mio283qt2_getpower(FAR struct lcd_dev_s *dev);
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static int mio283qt2_setpower(FAR struct lcd_dev_s *dev, int power);
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static int mio283qt2_getcontrast(FAR struct lcd_dev_s *dev);
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static int mio283qt2_setcontrast(FAR struct lcd_dev_s *dev,
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unsigned int contrast);
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/* Initialization */
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static inline int mio283qt2_hwinitialize(FAR struct mio283qt2_dev_s *priv);
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/****************************************************************************
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* Private Data
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****************************************************************************/
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/* This driver can support only a signal MIO283QT2 device.
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* This is due to an unfortunate decision made whent he getrun and
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* putrun methods were designed.
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* The following is the single MIO283QT2 driver state instance:
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*/
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static struct mio283qt2_dev_s g_lcddev;
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: mio283qt2_putreg(lcd,
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*
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* Description:
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* Write to an LCD register
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*
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****************************************************************************/
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static void mio283qt2_putreg(FAR struct mio283qt2_lcd_s *lcd,
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uint8_t regaddr, uint16_t regval)
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{
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/* Set the index register to the register address and write the register
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* contents
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*/
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lcd->index(lcd, regaddr);
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lcd->write(lcd, regval);
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}
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/****************************************************************************
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* Name: mio283qt2_readreg
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*
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* Description:
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* Read from an LCD register
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*
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****************************************************************************/
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#ifndef CONFIG_LCD_NOGETRUN
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static uint16_t mio283qt2_readreg(FAR struct mio283qt2_lcd_s *lcd,
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uint8_t regaddr)
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{
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/* Set the index register to the register address and read the register
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* contents.
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*/
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lcd->index(lcd, regaddr);
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return lcd->read(lcd);
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}
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#endif
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/****************************************************************************
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* Name: mio283qt2_gramselect
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*
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* Description:
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* Setup to read or write multiple pixels to the GRAM memory
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*
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****************************************************************************/
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static inline void mio283qt2_gramselect(FAR struct mio283qt2_lcd_s *lcd)
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{
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lcd->index(lcd, 0x22);
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}
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/****************************************************************************
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* Name: mio283qt2_gramwrite
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*
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* Description:
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* Setup to read or write multiple pixels to the GRAM memory
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*
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****************************************************************************/
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static inline void mio283qt2_gramwrite(FAR struct mio283qt2_lcd_s *lcd,
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uint16_t data)
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{
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lcd->write(lcd, data);
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}
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/****************************************************************************
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* Name: mio283qt2_readsetup
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*
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* Description:
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* Prime the operation by reading one pixel from the GRAM memory if
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* necessary for this LCD type. When reading 16-bit gram data, there may
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* be some shifts in the returned data:
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*
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* - ILI932x: Discard first dummy read; no shift in the return data
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*
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****************************************************************************/
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#ifndef CONFIG_LCD_NOGETRUN
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static inline void mio283qt2_readsetup(FAR struct mio283qt2_lcd_s *lcd,
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FAR uint16_t *accum)
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{
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#if 0 /* Probably not necessary... untested */
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/* Read-ahead one pixel */
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*accum = lcd->read(lcd);
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#endif
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}
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#endif
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/****************************************************************************
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* Name: mio283qt2_gramread
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*
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* Description:
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* Read one correctly aligned pixel from the GRAM memory.
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* Possibly shifting the data and possibly swapping red and green
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* components.
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*
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* - ILI932x: Unknown -- assuming colors are in the color order
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*
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****************************************************************************/
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#ifndef CONFIG_LCD_NOGETRUN
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static inline uint16_t mio283qt2_gramread(FAR struct mio283qt2_lcd_s *lcd,
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FAR uint16_t *accum)
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{
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/* Read the value (GRAM register already selected) */
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return lcd->read(lcd);
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}
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#endif
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/****************************************************************************
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* Name: mio283qt2_setarea
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*
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* Description:
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* Set the cursor position.
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* In landscape mode, the "column" is actually the physical
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* Y position and the "row" is the physical X position.
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*
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****************************************************************************/
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static void mio283qt2_setarea(FAR struct mio283qt2_lcd_s *lcd,
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uint16_t x0, uint16_t y0,
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uint16_t x1, uint16_t y1)
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{
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mio283qt2_putreg(lcd, 0x03, (x0 & 0x00ff)); /* set x0 */
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mio283qt2_putreg(lcd, 0x02, (x0 >> 8)); /* set x0 */
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mio283qt2_putreg(lcd, 0x05, (x1 & 0x00ff)); /* set x1 */
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mio283qt2_putreg(lcd, 0x04, (x1 >> 8)); /* set x1 */
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mio283qt2_putreg(lcd, 0x07, (y0 & 0x00ff)); /* set y0 */
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mio283qt2_putreg(lcd, 0x06, (y0 >> 8)); /* set y0 */
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mio283qt2_putreg(lcd, 0x09, (y1 & 0x00ff)); /* set y1 */
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mio283qt2_putreg(lcd, 0x08, (y1 >> 8)); /* set y1 */
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}
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/****************************************************************************
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* Name: mio283qt2_dumprun
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*
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* Description:
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* Dump the contexts of the run buffer:
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*
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* run - The buffer in containing the run read to be dumped
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* npixels - The number of pixels to dump
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*
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****************************************************************************/
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#if 0 /* Sometimes useful */
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static void mio283qt2_dumprun(FAR const char *msg,
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FAR uint16_t *run,
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size_t npixels)
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{
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int i;
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int j;
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syslog(LOG_INFO, "\n%s:\n", msg);
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for (i = 0; i < npixels; i += 16)
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{
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up_putc(' ');
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syslog(LOG_INFO, " ");
|
|
for (j = 0; j < 16; j++)
|
|
{
|
|
syslog(LOG_INFO, " %04x", *run++);
|
|
}
|
|
|
|
up_putc('\n');
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: mio283qt2_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 mio283qt2_putrun(fb_coord_t row, fb_coord_t col,
|
|
FAR const uint8_t *buffer,
|
|
size_t npixels)
|
|
{
|
|
FAR struct mio283qt2_dev_s *priv = &g_lcddev;
|
|
FAR struct mio283qt2_lcd_s *lcd = priv->lcd;
|
|
FAR const uint16_t *src = (FAR const uint16_t *)buffer;
|
|
int i;
|
|
|
|
/* Buffer must be provided and aligned to a 16-bit address boundary */
|
|
|
|
lcdinfo("row: %d col: %d npixels: %d\n", row, col, npixels);
|
|
DEBUGASSERT(buffer && ((uintptr_t)buffer & 1) == 0);
|
|
|
|
/* Select the LCD */
|
|
|
|
lcd->select(lcd);
|
|
|
|
/* Write the run to GRAM. */
|
|
|
|
mio283qt2_setarea(lcd, col, row, col + npixels - 1, row);
|
|
mio283qt2_gramselect(lcd);
|
|
|
|
for (i = 0; i < npixels; i++)
|
|
{
|
|
mio283qt2_gramwrite(lcd, *src);
|
|
src++;
|
|
}
|
|
|
|
/* De-select the LCD */
|
|
|
|
lcd->deselect(lcd);
|
|
return OK;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: mio283qt2_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 mio283qt2_getrun(fb_coord_t row, fb_coord_t col,
|
|
FAR uint8_t *buffer,
|
|
size_t npixels)
|
|
{
|
|
#ifndef CONFIG_LCD_NOGETRUN
|
|
FAR struct mio283qt2_dev_s *priv = &g_lcddev;
|
|
FAR struct mio283qt2_lcd_s *lcd = priv->lcd;
|
|
FAR uint16_t *dest = (FAR uint16_t *)buffer;
|
|
uint16_t accum;
|
|
int i;
|
|
|
|
/* Buffer must be provided and aligned to a 16-bit address boundary */
|
|
|
|
lcdinfo("row: %d col: %d npixels: %d\n", row, col, npixels);
|
|
DEBUGASSERT(buffer && ((uintptr_t)buffer & 1) == 0);
|
|
|
|
/* Select the LCD */
|
|
|
|
lcd->select(lcd);
|
|
|
|
/* Read the run from GRAM. */
|
|
|
|
/* Select the LCD */
|
|
|
|
lcd->select(lcd);
|
|
|
|
/* Red the run fram GRAM. */
|
|
|
|
mio283qt2_setarea(lcd, col, row, col + npixels - 1, row);
|
|
mio283qt2_gramselect(lcd);
|
|
|
|
/* Prime the pump for unaligned read data */
|
|
|
|
mio283qt2_readsetup(lcd, &accum);
|
|
|
|
for (i = 0; i < npixels; i++)
|
|
{
|
|
*dest++ = mio283qt2_gramread(lcd, &accum);
|
|
}
|
|
|
|
/* De-select the LCD */
|
|
|
|
lcd->deselect(lcd);
|
|
return OK;
|
|
#else
|
|
return -ENOSYS;
|
|
#endif
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: mio283qt2_getvideoinfo
|
|
*
|
|
* Description:
|
|
* Get information about the LCD video controller configuration.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int mio283qt2_getvideoinfo(FAR struct lcd_dev_s *dev,
|
|
FAR struct fb_videoinfo_s *vinfo)
|
|
{
|
|
DEBUGASSERT(dev && vinfo);
|
|
lcdinfo("fmt: %d xres: %d yres: %d nplanes: 1\n",
|
|
MIO283QT2_COLORFMT, MIO283QT2_XRES, MIO283QT2_XRES);
|
|
|
|
vinfo->fmt = MIO283QT2_COLORFMT; /* Color format: RGB16-565: RRRR RGGG GGGB BBBB */
|
|
vinfo->xres = MIO283QT2_XRES; /* Horizontal resolution in pixel columns */
|
|
vinfo->yres = MIO283QT2_YRES; /* Vertical resolution in pixel rows */
|
|
vinfo->nplanes = 1; /* Number of color planes supported */
|
|
return OK;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: mio283qt2_getplaneinfo
|
|
*
|
|
* Description:
|
|
* Get information about the configuration of each LCD color plane.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int mio283qt2_getplaneinfo(FAR struct lcd_dev_s *dev,
|
|
unsigned int planeno,
|
|
FAR struct lcd_planeinfo_s *pinfo)
|
|
{
|
|
FAR struct mio283qt2_dev_s *priv = (FAR struct mio283qt2_dev_s *)dev;
|
|
|
|
DEBUGASSERT(dev && pinfo && planeno == 0);
|
|
lcdinfo("planeno: %d bpp: %d\n", planeno, MIO283QT2_BPP);
|
|
|
|
pinfo->putrun = mio283qt2_putrun; /* Put a run into LCD memory */
|
|
pinfo->getrun = mio283qt2_getrun; /* Get a run from LCD memory */
|
|
pinfo->buffer = (FAR uint8_t *)priv->runbuffer; /* Run scratch buffer */
|
|
pinfo->bpp = MIO283QT2_BPP; /* Bits-per-pixel */
|
|
return OK;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: mio283qt2_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 mio283qt2_getpower(FAR struct lcd_dev_s *dev)
|
|
{
|
|
lcdinfo("power: %d\n", 0);
|
|
return g_lcddev.power;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: mio283qt2_poweroff
|
|
*
|
|
* 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 mio283qt2_poweroff(FAR struct mio283qt2_lcd_s *lcd)
|
|
{
|
|
/* Select the LCD */
|
|
|
|
lcd->select(lcd);
|
|
|
|
/* Set the backlight off */
|
|
|
|
lcd->backlight(lcd, 0);
|
|
|
|
/* Turn the display off */
|
|
|
|
mio283qt2_putreg(lcd, 0x28, 0x0000); /* GON=0, DTE=0, D=0 */
|
|
|
|
/* Deselect the LCD */
|
|
|
|
lcd->deselect(lcd);
|
|
|
|
/* Remember the power off state */
|
|
|
|
g_lcddev.power = 0;
|
|
return OK;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: mio283qt2_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 mio283qt2_setpower(FAR struct lcd_dev_s *dev, int power)
|
|
{
|
|
FAR struct mio283qt2_dev_s *priv = (FAR struct mio283qt2_dev_s *)dev;
|
|
FAR struct mio283qt2_lcd_s *lcd = priv->lcd;
|
|
|
|
lcdinfo("power: %d\n", power);
|
|
DEBUGASSERT((unsigned)power <= CONFIG_LCD_MAXPOWER);
|
|
|
|
/* Set new power level */
|
|
|
|
if (power > 0)
|
|
{
|
|
/* Select the LCD */
|
|
|
|
lcd->select(lcd);
|
|
|
|
/* Set the backlight level */
|
|
|
|
lcd->backlight(lcd, power);
|
|
|
|
/* Then turn the display on:
|
|
* D=ON(3) CM=0 DTE=1 GON=1 SPT=0 VLE=0 PT=0
|
|
*/
|
|
|
|
mio283qt2_putreg(lcd, 0x28, 0x0038); /* GON=1, DTE=1, D=2 */
|
|
up_mdelay(40);
|
|
mio283qt2_putreg(lcd, 0x28, 0x003c); /* GON=1, DTE=1, D=3 */
|
|
|
|
/* Deselect the LCD */
|
|
|
|
lcd->deselect(lcd);
|
|
|
|
/* Remember the power on state */
|
|
|
|
g_lcddev.power = power;
|
|
}
|
|
else
|
|
{
|
|
/* Turn the display off */
|
|
|
|
mio283qt2_poweroff(lcd);
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: mio283qt2_getcontrast
|
|
*
|
|
* Description:
|
|
* Get the current contrast setting (0-CONFIG_LCD_MAXCONTRAST).
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int mio283qt2_getcontrast(FAR struct lcd_dev_s *dev)
|
|
{
|
|
lcdinfo("Not implemented\n");
|
|
return -ENOSYS;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: mio283qt2_setcontrast
|
|
*
|
|
* Description:
|
|
* Set LCD panel contrast (0-CONFIG_LCD_MAXCONTRAST).
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int mio283qt2_setcontrast(FAR struct lcd_dev_s *dev,
|
|
unsigned int contrast)
|
|
{
|
|
lcdinfo("contrast: %d\n", contrast);
|
|
return -ENOSYS;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: mio283qt2_hwinitialize
|
|
*
|
|
* Description:
|
|
* Initialize the LCD hardware.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static inline int mio283qt2_hwinitialize(FAR struct mio283qt2_dev_s *priv)
|
|
{
|
|
FAR struct mio283qt2_lcd_s *lcd = priv->lcd;
|
|
#ifndef CONFIG_LCD_NOGETRUN
|
|
uint16_t id;
|
|
#endif
|
|
int ret;
|
|
|
|
/* Select the LCD */
|
|
|
|
lcd->select(lcd);
|
|
|
|
/* Read the HIMAX ID registger (0x00) */
|
|
|
|
#ifndef CONFIG_LCD_NOGETRUN
|
|
id = mio283qt2_readreg(lcd, 0x00);
|
|
lcdinfo("LCD ID: %04x\n", id);
|
|
|
|
/* Check if the ID is for the MIO283QT2 */
|
|
|
|
if (id == HIMAX_ID)
|
|
#endif
|
|
{
|
|
/* Driving ability */
|
|
|
|
mio283qt2_putreg(lcd, 0xea, 0x0000); /* PTBA[15:8] */
|
|
mio283qt2_putreg(lcd, 0xeb, 0x0020); /* PTBA[7:0] */
|
|
mio283qt2_putreg(lcd, 0xec, 0x000c); /* STBA[15:8] */
|
|
mio283qt2_putreg(lcd, 0xed, 0x00c4); /* STBA[7:0] */
|
|
mio283qt2_putreg(lcd, 0xe8, 0x0040); /* OPON[7:0] */
|
|
mio283qt2_putreg(lcd, 0xe9, 0x0038); /* OPON1[7:0] */
|
|
mio283qt2_putreg(lcd, 0xf1, 0x0001); /* OTPS1B */
|
|
mio283qt2_putreg(lcd, 0xf2, 0x0010); /* GEN */
|
|
mio283qt2_putreg(lcd, 0x27, 0x00a3);
|
|
|
|
/* Power voltage */
|
|
|
|
mio283qt2_putreg(lcd, 0x1b, 0x001b); /* VRH = 4.65 */
|
|
mio283qt2_putreg(lcd, 0x1a, 0x0001); /* BT */
|
|
mio283qt2_putreg(lcd, 0x24, 0x002f); /* VMH */
|
|
mio283qt2_putreg(lcd, 0x25, 0x0057); /* VML */
|
|
|
|
/* Vcom offset */
|
|
|
|
mio283qt2_putreg(lcd, 0x23, 0x008d); /* For flicker adjust */
|
|
|
|
/* Power on */
|
|
|
|
mio283qt2_putreg(lcd, 0x18, 0x0036);
|
|
mio283qt2_putreg(lcd, 0x19, 0x0001); /* Start oscillator */
|
|
mio283qt2_putreg(lcd, 0x01, 0x0000); /* Wakeup */
|
|
mio283qt2_putreg(lcd, 0x1f, 0x0088);
|
|
up_mdelay(5);
|
|
mio283qt2_putreg(lcd, 0x1f, 0x0080);
|
|
up_mdelay(5);
|
|
mio283qt2_putreg(lcd, 0x1f, 0x0090);
|
|
up_mdelay(5);
|
|
mio283qt2_putreg(lcd, 0x1f, 0x00d0);
|
|
up_mdelay(5);
|
|
|
|
/* Gamma 2.8 setting */
|
|
|
|
mio283qt2_putreg(lcd, 0x40, 0x0000);
|
|
mio283qt2_putreg(lcd, 0x41, 0x0000);
|
|
mio283qt2_putreg(lcd, 0x42, 0x0001);
|
|
mio283qt2_putreg(lcd, 0x43, 0x0013);
|
|
mio283qt2_putreg(lcd, 0x44, 0x0010);
|
|
mio283qt2_putreg(lcd, 0x45, 0x0026);
|
|
mio283qt2_putreg(lcd, 0x46, 0x0008);
|
|
mio283qt2_putreg(lcd, 0x47, 0x0051);
|
|
mio283qt2_putreg(lcd, 0x48, 0x0002);
|
|
mio283qt2_putreg(lcd, 0x49, 0x0012);
|
|
mio283qt2_putreg(lcd, 0x4a, 0x0018);
|
|
mio283qt2_putreg(lcd, 0x4b, 0x0019);
|
|
mio283qt2_putreg(lcd, 0x4c, 0x0014);
|
|
|
|
mio283qt2_putreg(lcd, 0x50, 0x0019);
|
|
mio283qt2_putreg(lcd, 0x51, 0x002f);
|
|
mio283qt2_putreg(lcd, 0x52, 0x002c);
|
|
mio283qt2_putreg(lcd, 0x53, 0x003e);
|
|
mio283qt2_putreg(lcd, 0x54, 0x003f);
|
|
mio283qt2_putreg(lcd, 0x55, 0x003f);
|
|
mio283qt2_putreg(lcd, 0x56, 0x002e);
|
|
mio283qt2_putreg(lcd, 0x57, 0x0077);
|
|
mio283qt2_putreg(lcd, 0x58, 0x000b);
|
|
mio283qt2_putreg(lcd, 0x59, 0x0006);
|
|
mio283qt2_putreg(lcd, 0x5a, 0x0007);
|
|
mio283qt2_putreg(lcd, 0x5b, 0x000d);
|
|
mio283qt2_putreg(lcd, 0x5c, 0x001d);
|
|
mio283qt2_putreg(lcd, 0x5d, 0x00cc);
|
|
|
|
/* 4K Color Selection */
|
|
|
|
mio283qt2_putreg(lcd, 0x17, 0x0003);
|
|
mio283qt2_putreg(lcd, 0x17, 0x0005); /* 0x0005=65k, 0x0006=262k */
|
|
|
|
/* Panel characteristics */
|
|
|
|
mio283qt2_putreg(lcd, 0x36, 0x0000);
|
|
|
|
/* Display Setting */
|
|
|
|
mio283qt2_putreg(lcd, 0x01, 0x0000); /* IDMON=0, INVON=0, NORON=0, PTLON=0 */
|
|
|
|
#if defined(CONFIG_LCD_LANDSCAPE)
|
|
mio283qt2_putreg(lcd, 0x16, 0x00a8); /* MY=1, MX=0, MV=1, ML=0, BGR=1 */
|
|
#elif defined(CONFIG_LCD_PORTRAIT)
|
|
mio283qt2_putreg(lcd, 0x16, 0x0008); /* MY=0, MX=0, MV=0, ML=0, BGR=1 */
|
|
#elif defined(CONFIG_LCD_RLANDSCAPE)
|
|
mio283qt2_putreg(lcd, 0x16, 0x0068); /* MY=0, MX=1, MV=1, ML=0, BGR=1 */
|
|
#elif defined(CONFIG_LCD_RPORTRAIT)
|
|
mio283qt2_putreg(lcd, 0x16, 0x00c8); /* MY=1, MX=0, MV=1, ML=0, BGR=1 */
|
|
#endif
|
|
|
|
/* Window setting */
|
|
|
|
mio283qt2_setarea(lcd, 0, 0, (MIO283QT2_XRES - 1),
|
|
(MIO283QT2_YRES - 1));
|
|
ret = OK;
|
|
}
|
|
#ifndef CONFIG_LCD_NOGETRUN
|
|
else
|
|
{
|
|
lcderr("ERROR: Unsupported LCD type\n");
|
|
ret = -ENODEV;
|
|
}
|
|
#endif
|
|
|
|
/* De-select the LCD */
|
|
|
|
lcd->deselect(lcd);
|
|
return ret;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: mio283qt2_lcdinitialize
|
|
*
|
|
* Description:
|
|
* Initialize the LCD 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).
|
|
*
|
|
****************************************************************************/
|
|
|
|
FAR struct lcd_dev_s *mio283qt2_lcdinitialize(
|
|
FAR struct mio283qt2_lcd_s *lcd)
|
|
{
|
|
int ret;
|
|
|
|
lcdinfo("Initializing\n");
|
|
|
|
/* If we ccould support multiple MIO283QT2 devices, this is where we
|
|
* would allocate a new driver data structure... but we can't.
|
|
* Why not?
|
|
* Because of a bad should the form of the getrun() and putrun methods.
|
|
*/
|
|
|
|
FAR struct mio283qt2_dev_s *priv = &g_lcddev;
|
|
|
|
/* Initialize the driver data structure */
|
|
|
|
priv->dev.getvideoinfo = mio283qt2_getvideoinfo;
|
|
priv->dev.getplaneinfo = mio283qt2_getplaneinfo;
|
|
priv->dev.getpower = mio283qt2_getpower;
|
|
priv->dev.setpower = mio283qt2_setpower;
|
|
priv->dev.getcontrast = mio283qt2_getcontrast;
|
|
priv->dev.setcontrast = mio283qt2_setcontrast;
|
|
priv->lcd = lcd;
|
|
|
|
/* Configure and enable LCD */
|
|
|
|
ret = mio283qt2_hwinitialize(priv);
|
|
if (ret == OK)
|
|
{
|
|
/* Clear the display (setting it to the color 0=black) */
|
|
|
|
mio283qt2_clear(&priv->dev, 0);
|
|
|
|
/* Turn the display off */
|
|
|
|
mio283qt2_poweroff(lcd);
|
|
return &g_lcddev.dev;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: mio283qt2_clear
|
|
*
|
|
* Description:
|
|
* This is a non-standard LCD interface just for the stm3240g-EVAL board.
|
|
* Because of the various rotations, clearing the display in the normal
|
|
* way by writing a sequences of runs that covers the entire display can be
|
|
* very slow. Here the display is cleared by simply setting all GRAM
|
|
* memory to the specified color.
|
|
*
|
|
****************************************************************************/
|
|
|
|
void mio283qt2_clear(FAR struct lcd_dev_s *dev, uint16_t color)
|
|
{
|
|
FAR struct mio283qt2_dev_s *priv = (FAR struct mio283qt2_dev_s *)dev;
|
|
FAR struct mio283qt2_lcd_s *lcd = priv->lcd;
|
|
uint32_t i;
|
|
|
|
/* Select the LCD and set the drawring area */
|
|
|
|
lcd->select(lcd);
|
|
mio283qt2_setarea(lcd, 0, 0, (MIO283QT2_XRES - 1), (MIO283QT2_YRES - 1));
|
|
|
|
/* Prepare to write GRAM data */
|
|
|
|
mio283qt2_gramselect(lcd);
|
|
|
|
/* Copy color into all of GRAM.
|
|
* Orientation does not matter in this case.
|
|
*/
|
|
|
|
for (i = 0; i < MIO283QT2_XRES * MIO283QT2_YRES; i++)
|
|
{
|
|
mio283qt2_gramwrite(lcd, color);
|
|
}
|
|
|
|
/* De-select the LCD */
|
|
|
|
lcd->deselect(lcd);
|
|
}
|
|
|
|
#endif /* CONFIG_LCD_MIO283QT2 */
|