bdf8ede547
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3947 42af7a65-404d-4744-a932-0658087f49c3
1276 lines
41 KiB
C
1276 lines
41 KiB
C
/**************************************************************************************
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* configs/stm3210e-eval/src/up_lcd.c
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* arch/arm/src/board/up_lcd.c
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*
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* Copyright (C) 2011 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
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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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/* This driver supports the following LCDs:
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*
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* 1. Ampire AM-240320LTNQW00H
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* 2. Orise Tech SPFD5408B
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* 3. RenesasSP R61580
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*
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* The driver dynamically selects the LCD based on the reported LCD ID value.
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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 <arch/board/board.h>
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#include "up_arch.h"
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#include "stm32.h"
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#include "stm32_internal.h"
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#include "stm3210e-internal.h"
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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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# undef CONFIG_LCD_MAXPOWER
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# ifdef CONFIG_LCD_BACKLIGHT
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# define CONFIG_LCD_MAXPOWER 100
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# else
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# define CONFIG_LCD_MAXPOWER 1
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# endif
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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_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_PORTRAIT)
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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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# define CONFIG_LCD_LANDSCAPE 1
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#endif
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/* Backlight */
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#ifdef CONFIG_LCD_BACKLIGHT
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# ifndef CONFIG_STM32_TIM1
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# error "CONFIG_STM32_TIM1 to use the LCD backlight controls"
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# endif
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# if CONFIG_LCD_MAXPOWER < 2
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# warning "A larger value of CONFIG_LCD_MAXPOWER is recommended"
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# endif
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#endif
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#if defined(CONFIG_STM32_TIM1_FULL_REMAP)
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# error "PA8 cannot be configured as TIM1 CH1 with full remap"
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#endif
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/* Define CONFIG_DEBUG_LCD to enable detailed LCD debug output. Verbose debug must
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* 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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# undef CONFIG_DEBUG_LCD
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#endif
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#ifndef CONFIG_DEBUG_VERBOSE
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# undef CONFIG_DEBUG_LCD
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#endif
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/* Display/Color Properties ***********************************************************/
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/* Display Resolution */
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#ifdef CONFIG_LCD_LANDSCAPE
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# define STM3210E_XRES 320
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# define STM3210E_YRES 240
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#else
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# define STM3210E_XRES 240
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# define STM3210E_YRES 320
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#endif
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/* Color depth and format */
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#define STM3210E_BPP 16
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#define STM3210E_COLORFMT FB_FMT_RGB16_565
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/* STM3210E-EVAL LCD Hardware Definitions *********************************************/
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/* LCD /CS is CE4, Bank 4 of NOR/SRAM Bank 1~4 */
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#define STM3210E_LCDBASE ((uint32_t)(0x60000000 | 0x0c000000))
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#define LCD ((struct lcd_regs_s *) STM3210E_LCDBASE)
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#define LCD_REG_0 0x00
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#define LCD_REG_1 0x01
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#define LCD_REG_2 0x02
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#define LCD_REG_3 0x03
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#define LCD_REG_4 0x04
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#define LCD_REG_5 0x05
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#define LCD_REG_6 0x06
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#define LCD_REG_7 0x07
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#define LCD_REG_8 0x08
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#define LCD_REG_9 0x09
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#define LCD_REG_10 0x0a
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#define LCD_REG_12 0x0c
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#define LCD_REG_13 0x0d
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#define LCD_REG_14 0x0e
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#define LCD_REG_15 0x0f
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#define LCD_REG_16 0x10
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#define LCD_REG_17 0x11
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#define LCD_REG_18 0x12
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#define LCD_REG_19 0x13
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#define LCD_REG_20 0x14
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#define LCD_REG_21 0x15
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#define LCD_REG_22 0x16
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#define LCD_REG_23 0x17
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#define LCD_REG_24 0x18
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#define LCD_REG_25 0x19
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#define LCD_REG_26 0x1a
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#define LCD_REG_27 0x1b
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#define LCD_REG_28 0x1c
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#define LCD_REG_29 0x1d
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#define LCD_REG_30 0x1e
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#define LCD_REG_31 0x1f
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#define LCD_REG_32 0x20
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#define LCD_REG_33 0x21
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#define LCD_REG_34 0x22
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#define LCD_REG_36 0x24
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#define LCD_REG_37 0x25
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#define LCD_REG_40 0x28
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#define LCD_REG_41 0x29
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#define LCD_REG_43 0x2b
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#define LCD_REG_45 0x2d
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#define LCD_REG_48 0x30
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#define LCD_REG_49 0x31
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#define LCD_REG_50 0x32
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#define LCD_REG_51 0x33
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#define LCD_REG_52 0x34
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#define LCD_REG_53 0x35
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#define LCD_REG_54 0x36
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#define LCD_REG_55 0x37
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#define LCD_REG_56 0x38
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#define LCD_REG_57 0x39
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#define LCD_REG_58 0x3a
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#define LCD_REG_59 0x3b
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#define LCD_REG_60 0x3c
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#define LCD_REG_61 0x3d
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#define LCD_REG_62 0x3e
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#define LCD_REG_63 0x3f
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#define LCD_REG_64 0x40
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#define LCD_REG_65 0x41
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#define LCD_REG_66 0x42
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#define LCD_REG_67 0x43
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#define LCD_REG_68 0x44
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#define LCD_REG_69 0x45
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#define LCD_REG_70 0x46
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#define LCD_REG_71 0x47
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#define LCD_REG_72 0x48
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#define LCD_REG_73 0x49
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#define LCD_REG_74 0x4a
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#define LCD_REG_75 0x4b
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#define LCD_REG_76 0x4c
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#define LCD_REG_77 0x4d
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#define LCD_REG_78 0x4e
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#define LCD_REG_79 0x4f
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#define LCD_REG_80 0x50
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#define LCD_REG_81 0x51
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#define LCD_REG_82 0x52
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#define LCD_REG_83 0x53
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#define LCD_REG_96 0x60
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#define LCD_REG_97 0x61
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#define LCD_REG_106 0x6a
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#define LCD_REG_118 0x76
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#define LCD_REG_128 0x80
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#define LCD_REG_129 0x81
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#define LCD_REG_130 0x82
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#define LCD_REG_131 0x83
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#define LCD_REG_132 0x84
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#define LCD_REG_133 0x85
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#define LCD_REG_134 0x86
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#define LCD_REG_135 0x87
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#define LCD_REG_136 0x88
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#define LCD_REG_137 0x89
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#define LCD_REG_139 0x8b
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#define LCD_REG_140 0x8c
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#define LCD_REG_141 0x8d
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#define LCD_REG_143 0x8f
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#define LCD_REG_144 0x90
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#define LCD_REG_145 0x91
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#define LCD_REG_146 0x92
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#define LCD_REG_147 0x93
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#define LCD_REG_148 0x94
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#define LCD_REG_149 0x95
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#define LCD_REG_150 0x96
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#define LCD_REG_151 0x97
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#define LCD_REG_152 0x98
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#define LCD_REG_153 0x99
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#define LCD_REG_154 0x9a
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#define LCD_REG_157 0x9d
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#define LCD_REG_192 0xc0
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#define LCD_REG_193 0xc1
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#define LCD_REG_229 0xe5
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#define LCD_BL_TIMER_PERIOD 8999
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/* LCD IDs */
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#define SPFD5408B_ID 0x5408
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#define R61580_ID 0x1580
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/* Debug ******************************************************************************/
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#ifdef CONFIG_DEBUG_LCD
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# define lcddbg(format, arg...) vdbg(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 LCD registers */
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struct lcd_regs_s
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{
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volatile uint16_t address;
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volatile uint16_t value;
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};
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/* This structure describes the state of this driver */
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struct stm3210e_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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bool spfd5408b; /* TRUE: LCD is SPFD5408B Controller */
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uint8_t power; /* Current power setting */
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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 stm3210e_writereg(uint8_t regaddr, uint16_t regval);
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static uint16_t stm3210e_readreg(uint8_t regaddr);
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static inline void stm3210e_gramselect(void);
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static inline void stm3210e_writegram(uint16_t rgbval);
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static inline uint16_t stm3210e_readgram(void);
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static void stm3210e_setcursor(uint16_t col, uint16_t row);
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/* LCD Data Transfer Methods */
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static int stm3210e_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 stm3210e_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 stm3210e_getvideoinfo(FAR struct lcd_dev_s *dev,
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FAR struct fb_videoinfo_s *vinfo);
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static int stm3210e_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 stm3210e_getpower(struct lcd_dev_s *dev);
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static int stm3210e_setpower(struct lcd_dev_s *dev, int power);
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static int stm3210e_getcontrast(struct lcd_dev_s *dev);
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static int stm3210e_setcontrast(struct lcd_dev_s *dev, unsigned int contrast);
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/* Initialization */
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static inline void stm3210e_lcdinitialize(void);
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#ifdef CONFIG_LCD_BACKLIGHT
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static void stm3210e_backlight(void);
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#else
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# define stm3210e_backlight()
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#endif
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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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static uint16_t g_runbuffer[STM3210E_XRES];
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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 = STM3210E_COLORFMT, /* Color format: RGB16-565: RRRR RGGG GGGB BBBB */
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.xres = STM3210E_XRES, /* Horizontal resolution in pixel columns */
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.yres = STM3210E_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 = stm3210e_putrun, /* Put a run into LCD memory */
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.getrun = stm3210e_getrun, /* Get a run from LCD memory */
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.buffer = (uint8_t*)g_runbuffer, /* Run scratch buffer */
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.bpp = STM3210E_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 stm3210e_dev_s g_lcddev =
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{
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.dev =
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{
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/* LCD Configuration */
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.getvideoinfo = stm3210e_getvideoinfo,
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.getplaneinfo = stm3210e_getplaneinfo,
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/* LCD RGB Mapping -- Not supported */
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/* Cursor Controls -- Not supported */
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/* LCD Specific Controls */
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.getpower = stm3210e_getpower,
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.setpower = stm3210e_setpower,
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.getcontrast = stm3210e_getcontrast,
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.setcontrast = stm3210e_setcontrast,
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},
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};
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/**************************************************************************************
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* Private Functions
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**************************************************************************************/
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/**************************************************************************************
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* Name: stm3210e_writereg
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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 stm3210e_writereg(uint8_t regaddr, uint16_t regval)
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{
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/* Write the register address then write the register value */
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LCD->address = regaddr;
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LCD->value = regval;
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}
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/**************************************************************************************
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* Name: stm3210e_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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static uint16_t stm3210e_readreg(uint8_t regaddr)
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{
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/* Write the register address then read the register value */
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LCD->address = regaddr;
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return LCD->value;
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}
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/**************************************************************************************
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* Name: stm3210e_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 stm3210e_gramselect(void)
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{
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LCD->address = LCD_REG_34;
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}
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/**************************************************************************************
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* Name: stm3210e_writegram
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*
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* Description:
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* Write one pixel to the GRAM memory
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*
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**************************************************************************************/
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static inline void stm3210e_writegram(uint16_t rgbval)
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{
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/* Write the value (GRAM register already selected) */
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LCD->value = rgbval;
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}
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/**************************************************************************************
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* Name: stm3210e_readgram
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*
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* Description:
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* Read one pixel from the GRAM memory
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*
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**************************************************************************************/
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static inline uint16_t stm3210e_readgram(void)
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{
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/* Write the value (GRAM register already selected) */
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return LCD->value;
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}
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/**************************************************************************************
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* Name: stm3210e_setcursor
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*
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* Description:
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* Set the cursor position. 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 stm3210e_setcursor(uint16_t col, uint16_t row)
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{
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stm3210e_writereg(LCD_REG_32, row); /* GRAM horizontal address */
|
|
stm3210e_writereg(LCD_REG_33, col); /* GRAM vertical address */
|
|
}
|
|
|
|
/**************************************************************************************
|
|
* Name: stm3210e_dumprun
|
|
*
|
|
* Description:
|
|
* Dump the contexts of the run buffer:
|
|
*
|
|
* run - The buffer in containing the run read to be dumped
|
|
* npixels - The number of pixels to dump
|
|
*
|
|
**************************************************************************************/
|
|
|
|
#if 0 /* Sometimes useful */
|
|
static void stm3210e_dumprun(FAR const char *msg, FAR uint16_t *run, size_t npixels)
|
|
{
|
|
int i, j;
|
|
|
|
lib_rawprintf("\n%s:\n", msg);
|
|
for (i = 0; i < npixels; i += 16)
|
|
{
|
|
up_putc(' ');
|
|
lib_rawprintf(" ");
|
|
for (j = 0; j < 16; j++)
|
|
{
|
|
lib_rawprintf(" %04x", *run++);
|
|
}
|
|
up_putc('\n');
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/**************************************************************************************
|
|
* Name: stm3210e_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 stm3210e_putrun(fb_coord_t row, fb_coord_t col, FAR const uint8_t *buffer,
|
|
size_t npixels)
|
|
{
|
|
FAR const uint16_t *src = (FAR const uint16_t*)buffer;
|
|
int i;
|
|
|
|
/* Buffer must be provided and aligned to a 16-bit address boundary */
|
|
|
|
lcddbg("row: %d col: %d npixels: %d\n", row, col, npixels);
|
|
DEBUGASSERT(buffer && ((uintptr_t)buffer & 1) == 0);
|
|
|
|
/* Write the run to GRAM. */
|
|
|
|
#ifdef CONFIG_LCD_LANDSCAPE
|
|
/* Convert coordinates -- Which edge of the display is the "top?" Here the edge
|
|
* with the simplest conversion is used.
|
|
*/
|
|
|
|
col = (STM3210E_XRES-1) - col;
|
|
|
|
/* Set the cursor position */
|
|
|
|
stm3210e_setcursor(col, row);
|
|
|
|
/* Then write the GRAM data, auto-decrementing X */
|
|
|
|
stm3210e_gramselect();
|
|
for (i = 0; i < npixels; i++)
|
|
{
|
|
/* Write the next pixel to this position (auto-decrements to the next column) */
|
|
|
|
stm3210e_writegram(*src++);
|
|
}
|
|
#elif defined(CONFIG_LCD_PORTRAIT)
|
|
/* Convert coordinates. (Swap row and column. This is done implicitly). */
|
|
|
|
/* Then write the GRAM data, manually incrementing Y (which is col) */
|
|
|
|
for (i = 0; i < npixels; i++)
|
|
{
|
|
/* Write the next pixel to this position */
|
|
|
|
stm3210e_setcursor(row, col);
|
|
stm3210e_gramselect();
|
|
stm3210e_writegram(*src++);
|
|
|
|
/* Increment to next column */
|
|
|
|
col++;
|
|
}
|
|
#else /* CONFIG_LCD_RPORTRAIT */
|
|
/* Convert coordinates. (Swap row and column. This is done implicitly).
|
|
* Which edge of the display is the "top"?
|
|
*/
|
|
|
|
col = (STM3210E_XRES-1) - col;
|
|
row = (STM3210E_YRES-1) - row;
|
|
|
|
/* Then write the GRAM data, manually incrementing Y (which is col) */
|
|
|
|
for (i = 0; i < npixels; i++)
|
|
{
|
|
/* Write the next pixel to this position */
|
|
|
|
stm3210e_setcursor(row, col);
|
|
stm3210e_gramselect();
|
|
stm3210e_writegram(*src++);
|
|
|
|
/* Decrement to next column */
|
|
|
|
col--;
|
|
}
|
|
#endif
|
|
return OK;
|
|
}
|
|
|
|
/**************************************************************************************
|
|
* Name: stm3210e_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 stm3210e_getrun(fb_coord_t row, fb_coord_t col, FAR uint8_t *buffer,
|
|
size_t npixels)
|
|
{
|
|
FAR uint16_t *dest = (FAR uint16_t*)buffer;
|
|
int i;
|
|
|
|
/* Buffer must be provided and aligned to a 16-bit address boundary */
|
|
|
|
lcddbg("row: %d col: %d npixels: %d\n", row, col, npixels);
|
|
DEBUGASSERT(buffer && ((uintptr_t)buffer & 1) == 0);
|
|
|
|
/* Read the run from GRAM. */
|
|
|
|
#ifdef CONFIG_LCD_LANDSCAPE
|
|
/* Convert coordinates -- Which edge of the display is the "top?" Here the edge
|
|
* with the simplest conversion is used.
|
|
*/
|
|
|
|
col = (STM3210E_XRES-1) - col;
|
|
|
|
/* Set the cursor position */
|
|
|
|
stm3210e_setcursor(col, row);
|
|
|
|
/* Then read the GRAM data, auto-decrementing Y */
|
|
|
|
stm3210e_gramselect();
|
|
for (i = 0; i < npixels; i++)
|
|
{
|
|
/* Read the next pixel from this position (autoincrements to the next row) */
|
|
|
|
*dest++ = stm3210e_readgram();
|
|
}
|
|
#elif defined(CONFIG_LCD_PORTRAIT)
|
|
/* Convert coordinates (Swap row and column. This is done implicitly). */
|
|
|
|
/* Then read the GRAM data, manually incrementing Y (which is col) */
|
|
|
|
for (i = 0; i < npixels; i++)
|
|
{
|
|
/* Read the next pixel from this position */
|
|
|
|
stm3210e_setcursor(row, col);
|
|
stm3210e_gramselect();
|
|
*dest++ = stm3210e_readgram();
|
|
|
|
/* Increment to next column */
|
|
|
|
col++;
|
|
}
|
|
#else /* CONFIG_LCD_RPORTRAIT */
|
|
/* Convert coordinates. (Swap row and column. This is done implicitly).
|
|
* Whic edge of the display is the "top"?
|
|
*/
|
|
|
|
col = (STM3210E_XRES-1) - col;
|
|
row = (STM3210E_YRES-1) - row;
|
|
|
|
/* Then write the GRAM data, manually incrementing Y (which is col) */
|
|
|
|
for (i = 0; i < npixels; i++)
|
|
{
|
|
/* Write the next pixel to this position */
|
|
|
|
stm3210e_setcursor(row, col);
|
|
stm3210e_gramselect();
|
|
*dest++ = stm3210e_readgram();
|
|
|
|
/* Decrement to next column */
|
|
|
|
col--;
|
|
}
|
|
#endif
|
|
|
|
return OK;
|
|
}
|
|
|
|
/**************************************************************************************
|
|
* Name: stm3210e_getvideoinfo
|
|
*
|
|
* Description:
|
|
* Get information about the LCD video controller configuration.
|
|
*
|
|
**************************************************************************************/
|
|
|
|
static int stm3210e_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: stm3210e_getplaneinfo
|
|
*
|
|
* Description:
|
|
* Get information about the configuration of each LCD color plane.
|
|
*
|
|
**************************************************************************************/
|
|
|
|
static int stm3210e_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: stm3210e_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 stm3210e_getpower(struct lcd_dev_s *dev)
|
|
{
|
|
gvdbg("power: %d\n", 0);
|
|
return g_lcddev.power;
|
|
}
|
|
|
|
/**************************************************************************************
|
|
* Name: stm3210e_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 stm3210e_setpower(struct lcd_dev_s *dev, int power)
|
|
{
|
|
gvdbg("power: %d\n", power);
|
|
DEBUGASSERT(power <= CONFIG_LCD_MAXPOWER);
|
|
|
|
/* Set new power level */
|
|
|
|
if (power > 0)
|
|
{
|
|
#ifdef CONFIG_LCD_BACKLIGHT
|
|
uint32_t duty;
|
|
|
|
/* Caclulate the new backlight duty. It is a faction of the timer1
|
|
* period based on the ration of the current power setting to the
|
|
* maximum power setting.
|
|
*/
|
|
|
|
duty = ((uint32_t)LCD_BL_TIMER_PERIOD * (uint32_t)power) / CONFIG_LCD_MAXPOWER;
|
|
if (duty >= LCD_BL_TIMER_PERIOD)
|
|
{
|
|
duty = LCD_BL_TIMER_PERIOD - 1;
|
|
}
|
|
putreg16((uint16_t)duty, STM32_TIM1_CCR1);
|
|
#endif
|
|
/* Then turn the display on */
|
|
|
|
stm3210e_writereg(LCD_REG_7, g_lcddev.spfd5408b ? 0x0112 : 0x0173);
|
|
g_lcddev.power = power;
|
|
}
|
|
else
|
|
{
|
|
stm3210e_writereg(LCD_REG_7, 0);
|
|
g_lcddev.power = 0;
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
/**************************************************************************************
|
|
* Name: stm3210e_getcontrast
|
|
*
|
|
* Description:
|
|
* Get the current contrast setting (0-CONFIG_LCD_MAXCONTRAST).
|
|
*
|
|
**************************************************************************************/
|
|
|
|
static int stm3210e_getcontrast(struct lcd_dev_s *dev)
|
|
{
|
|
gvdbg("Not implemented\n");
|
|
return -ENOSYS;
|
|
}
|
|
|
|
/**************************************************************************************
|
|
* Name: stm3210e_setcontrast
|
|
*
|
|
* Description:
|
|
* Set LCD panel contrast (0-CONFIG_LCD_MAXCONTRAST).
|
|
*
|
|
**************************************************************************************/
|
|
|
|
static int stm3210e_setcontrast(struct lcd_dev_s *dev, unsigned int contrast)
|
|
{
|
|
gvdbg("contrast: %d\n", contrast);
|
|
return -ENOSYS;
|
|
}
|
|
|
|
/**************************************************************************************
|
|
* Name: stm3210e_lcdinitialize
|
|
*
|
|
* Description:
|
|
* Set LCD panel contrast (0-CONFIG_LCD_MAXCONTRAST).
|
|
*
|
|
**************************************************************************************/
|
|
|
|
static inline void stm3210e_lcdinitialize(void)
|
|
{
|
|
uint16_t id;
|
|
|
|
/* Check if the LCD is Orise Tech SPFD5408B Controller (or the compatible RenesasSP
|
|
* R61580).
|
|
*/
|
|
|
|
id = stm3210e_readreg(LCD_REG_0);
|
|
lcddbg("ID: %04x\n", id);
|
|
|
|
if (id == SPFD5408B_ID || id == R61580_ID)
|
|
{
|
|
g_lcddev.spfd5408b = true;
|
|
|
|
/* Start Initial Sequence */
|
|
|
|
stm3210e_writereg(LCD_REG_1, 0x0100); /* Set SS bit */
|
|
stm3210e_writereg(LCD_REG_2, 0x0700); /* Set 1 line inversion */
|
|
stm3210e_writereg(LCD_REG_3, 0x1030); /* Set GRAM write direction and BGR=1. */
|
|
stm3210e_writereg(LCD_REG_4, 0x0000); /* Resize register */
|
|
stm3210e_writereg(LCD_REG_8, 0x0202); /* Set the back porch and front porch */
|
|
stm3210e_writereg(LCD_REG_9, 0x0000); /* Set non-display area refresh cycle ISC[3:0] */
|
|
stm3210e_writereg(LCD_REG_10, 0x0000); /* FMARK function */
|
|
stm3210e_writereg(LCD_REG_12, 0x0000); /* RGB 18-bit System interface setting */
|
|
stm3210e_writereg(LCD_REG_13, 0x0000); /* Frame marker Position */
|
|
stm3210e_writereg(LCD_REG_15, 0x0000); /* RGB interface polarity, no impact */
|
|
|
|
/* Power On sequence */
|
|
|
|
stm3210e_writereg(LCD_REG_16, 0x0000); /* SAP, BT[3:0], AP, DSTB, SLP, STB */
|
|
stm3210e_writereg(LCD_REG_17, 0x0000); /* DC1[2:0], DC0[2:0], VC[2:0] */
|
|
stm3210e_writereg(LCD_REG_18, 0x0000); /* VREG1OUT voltage */
|
|
stm3210e_writereg(LCD_REG_19, 0x0000); /* VDV[4:0] for VCOM amplitude */
|
|
up_mdelay(200); /* Dis-charge capacitor power voltage (200ms) */
|
|
|
|
stm3210e_writereg(LCD_REG_17, 0x0007); /* DC1[2:0], DC0[2:0], VC[2:0] */
|
|
up_mdelay(50);
|
|
|
|
stm3210e_writereg(LCD_REG_16, 0x12B0); /* SAP, BT[3:0], AP, DSTB, SLP, STB */
|
|
up_mdelay(50);
|
|
|
|
stm3210e_writereg(LCD_REG_18, 0x01bd); /* External reference voltage= Vci */
|
|
up_mdelay(50);
|
|
|
|
stm3210e_writereg(LCD_REG_19, 0x1400); /* VDV[4:0] for VCOM amplitude */
|
|
stm3210e_writereg(LCD_REG_41, 0x000e); /* VCM[4:0] for VCOMH */
|
|
up_mdelay(50);
|
|
|
|
stm3210e_writereg(LCD_REG_32, 0x0000); /* GRAM horizontal Address */
|
|
stm3210e_writereg(LCD_REG_33, 0x013f); /* GRAM Vertical Address */
|
|
|
|
/* Adjust the Gamma Curve (SPFD5408B)*/
|
|
|
|
stm3210e_writereg(LCD_REG_48, 0x0b0d);
|
|
stm3210e_writereg(LCD_REG_49, 0x1923);
|
|
stm3210e_writereg(LCD_REG_50, 0x1c26);
|
|
stm3210e_writereg(LCD_REG_51, 0x261c);
|
|
stm3210e_writereg(LCD_REG_52, 0x2419);
|
|
stm3210e_writereg(LCD_REG_53, 0x0d0b);
|
|
stm3210e_writereg(LCD_REG_54, 0x1006);
|
|
stm3210e_writereg(LCD_REG_55, 0x0610);
|
|
stm3210e_writereg(LCD_REG_56, 0x0706);
|
|
stm3210e_writereg(LCD_REG_57, 0x0304);
|
|
stm3210e_writereg(LCD_REG_58, 0x0e05);
|
|
stm3210e_writereg(LCD_REG_59, 0x0e01);
|
|
stm3210e_writereg(LCD_REG_60, 0x010e);
|
|
stm3210e_writereg(LCD_REG_61, 0x050e);
|
|
stm3210e_writereg(LCD_REG_62, 0x0403);
|
|
stm3210e_writereg(LCD_REG_63, 0x0607);
|
|
|
|
/* Set GRAM area */
|
|
|
|
stm3210e_writereg(LCD_REG_80, 0x0000); /* Horizontal GRAM Start Address */
|
|
stm3210e_writereg(LCD_REG_81, 0x00ef); /* Horizontal GRAM End Address */
|
|
stm3210e_writereg(LCD_REG_82, 0x0000); /* Vertical GRAM Start Address */
|
|
stm3210e_writereg(LCD_REG_83, 0x013f); /* Vertical GRAM End Address */
|
|
stm3210e_writereg(LCD_REG_96, 0xa700); /* Gate Scan Line */
|
|
stm3210e_writereg(LCD_REG_97, 0x0001); /* NDL, VLE, REV */
|
|
stm3210e_writereg(LCD_REG_106, 0x0000); /* set scrolling line */
|
|
|
|
/* Partial Display Control */
|
|
|
|
stm3210e_writereg(LCD_REG_128, 0x0000);
|
|
stm3210e_writereg(LCD_REG_129, 0x0000);
|
|
stm3210e_writereg(LCD_REG_130, 0x0000);
|
|
stm3210e_writereg(LCD_REG_131, 0x0000);
|
|
stm3210e_writereg(LCD_REG_132, 0x0000);
|
|
stm3210e_writereg(LCD_REG_133, 0x0000);
|
|
|
|
/* Panel Control */
|
|
|
|
stm3210e_writereg(LCD_REG_144, 0x0010);
|
|
stm3210e_writereg(LCD_REG_146, 0x0000);
|
|
stm3210e_writereg(LCD_REG_147, 0x0003);
|
|
stm3210e_writereg(LCD_REG_149, 0x0110);
|
|
stm3210e_writereg(LCD_REG_151, 0x0000);
|
|
stm3210e_writereg(LCD_REG_152, 0x0000);
|
|
|
|
/* Set GRAM write direction and BGR=1
|
|
* I/D=01 (Horizontal : increment, Vertical : decrement)
|
|
* AM=1 (address is updated in vertical writing direction)
|
|
*/
|
|
|
|
stm3210e_writereg(LCD_REG_3, 0x1018);
|
|
stm3210e_writereg(LCD_REG_7, 0); /* Display OFF */
|
|
}
|
|
else
|
|
{
|
|
g_lcddev.spfd5408b = false;
|
|
|
|
/* Start Initial Sequence */
|
|
|
|
stm3210e_writereg(LCD_REG_229, 0x8000); /* Set the internal vcore voltage */
|
|
stm3210e_writereg(LCD_REG_0, 0x0001); /* Start internal OSC. */
|
|
stm3210e_writereg(LCD_REG_1, 0x0100); /* Set SS and SM bit */
|
|
stm3210e_writereg(LCD_REG_2, 0x0700); /* Set 1 line inversion */
|
|
stm3210e_writereg(LCD_REG_3, 0x1030); /* Set GRAM write direction and BGR=1. */
|
|
stm3210e_writereg(LCD_REG_4, 0x0000); /* Resize register */
|
|
stm3210e_writereg(LCD_REG_8, 0x0202); /* Set the back porch and front porch */
|
|
stm3210e_writereg(LCD_REG_9, 0x0000); /* Set non-display area refresh cycle ISC[3:0] */
|
|
stm3210e_writereg(LCD_REG_10, 0x0000); /* FMARK function */
|
|
stm3210e_writereg(LCD_REG_12, 0x0000); /* RGB interface setting */
|
|
stm3210e_writereg(LCD_REG_13, 0x0000); /* Frame marker Position */
|
|
stm3210e_writereg(LCD_REG_15, 0x0000); /* RGB interface polarity */
|
|
|
|
/* Power On sequence */
|
|
|
|
stm3210e_writereg(LCD_REG_16, 0x0000); /* SAP, BT[3:0], AP, DSTB, SLP, STB */
|
|
stm3210e_writereg(LCD_REG_17, 0x0000); /* DC1[2:0], DC0[2:0], VC[2:0] */
|
|
stm3210e_writereg(LCD_REG_18, 0x0000); /* VREG1OUT voltage */
|
|
stm3210e_writereg(LCD_REG_19, 0x0000); /* VDV[4:0] for VCOM amplitude */
|
|
up_mdelay(200); /* Dis-charge capacitor power voltage (200ms) */
|
|
|
|
stm3210e_writereg(LCD_REG_16, 0x17b0); /* SAP, BT[3:0], AP, DSTB, SLP, STB */
|
|
stm3210e_writereg(LCD_REG_17, 0x0137); /* DC1[2:0], DC0[2:0], VC[2:0] */
|
|
up_mdelay(50);
|
|
|
|
stm3210e_writereg(LCD_REG_18, 0x0139); /* VREG1OUT voltage */
|
|
up_mdelay(50);
|
|
|
|
stm3210e_writereg(LCD_REG_19, 0x1d00); /* VDV[4:0] for VCOM amplitude */
|
|
stm3210e_writereg(LCD_REG_41, 0x0013); /* VCM[4:0] for VCOMH */
|
|
up_mdelay(50);
|
|
|
|
stm3210e_writereg(LCD_REG_32, 0x0000); /* GRAM horizontal Address */
|
|
stm3210e_writereg(LCD_REG_33, 0x0000); /* GRAM Vertical Address */
|
|
|
|
/* Adjust the Gamma Curve */
|
|
|
|
stm3210e_writereg(LCD_REG_48, 0x0006);
|
|
stm3210e_writereg(LCD_REG_49, 0x0101);
|
|
stm3210e_writereg(LCD_REG_50, 0x0003);
|
|
stm3210e_writereg(LCD_REG_53, 0x0106);
|
|
stm3210e_writereg(LCD_REG_54, 0x0b02);
|
|
stm3210e_writereg(LCD_REG_55, 0x0302);
|
|
stm3210e_writereg(LCD_REG_56, 0x0707);
|
|
stm3210e_writereg(LCD_REG_57, 0x0007);
|
|
stm3210e_writereg(LCD_REG_60, 0x0600);
|
|
stm3210e_writereg(LCD_REG_61, 0x020b);
|
|
|
|
/* Set GRAM area */
|
|
|
|
stm3210e_writereg(LCD_REG_80, 0x0000); /* Horizontal GRAM Start Address */
|
|
stm3210e_writereg(LCD_REG_81, 0x00ef); /* Horizontal GRAM End Address */
|
|
stm3210e_writereg(LCD_REG_82, 0x0000); /* Vertical GRAM Start Address */
|
|
stm3210e_writereg(LCD_REG_83, 0x013f); /* Vertical GRAM End Address */
|
|
stm3210e_writereg(LCD_REG_96, 0x2700); /* Gate Scan Line */
|
|
stm3210e_writereg(LCD_REG_97, 0x0001); /* NDL,VLE, REV */
|
|
stm3210e_writereg(LCD_REG_106, 0x0000); /* Set scrolling line */
|
|
|
|
/* Partial Display Control */
|
|
|
|
stm3210e_writereg(LCD_REG_128, 0x0000);
|
|
stm3210e_writereg(LCD_REG_129, 0x0000);
|
|
stm3210e_writereg(LCD_REG_130, 0x0000);
|
|
stm3210e_writereg(LCD_REG_131, 0x0000);
|
|
stm3210e_writereg(LCD_REG_132, 0x0000);
|
|
stm3210e_writereg(LCD_REG_133, 0x0000);
|
|
|
|
/* Panel Control */
|
|
|
|
stm3210e_writereg(LCD_REG_144, 0x0010);
|
|
stm3210e_writereg(LCD_REG_146, 0x0000);
|
|
stm3210e_writereg(LCD_REG_147, 0x0003);
|
|
stm3210e_writereg(LCD_REG_149, 0x0110);
|
|
stm3210e_writereg(LCD_REG_151, 0x0000);
|
|
stm3210e_writereg(LCD_REG_152, 0x0000);
|
|
|
|
/* Set GRAM write direction and BGR = 1
|
|
*
|
|
* I/D=01 (Horizontal : increment, Vertical : decrement)
|
|
* AM=1 (address is updated in vertical writing direction)
|
|
*/
|
|
|
|
stm3210e_writereg(LCD_REG_3, 0x1018);
|
|
stm3210e_writereg(LCD_REG_7, 0); /* Display off */
|
|
}
|
|
}
|
|
|
|
/**************************************************************************************
|
|
* Name: stm3210e_backlight
|
|
*
|
|
* Description:
|
|
* The LCD backlight is driven from PA8 which must be configured as TIM1
|
|
* CH1. TIM1 must then be configured to output a clock on PA8; the duty
|
|
* of the clock determineds the backlight level.
|
|
*
|
|
**************************************************************************************/
|
|
|
|
#ifdef CONFIG_LCD_BACKLIGHT
|
|
static void stm3210e_backlight(void)
|
|
{
|
|
uint16_t ccmr;
|
|
uint16_t ccer;
|
|
uint16_t cr2;
|
|
|
|
/* Configure PA8 as TIM1 CH1 output */
|
|
|
|
stm32_configgpio(GPIO_TIM1_CH1OUT);
|
|
|
|
/* Enabled timer 1 clocking */
|
|
|
|
modifyreg32(STM32_RCC_APB2ENR, 0, RCC_APB2ENR_TIM1EN);
|
|
|
|
/* Reset timer 1 */
|
|
|
|
modifyreg32(STM32_RCC_APB2RSTR, 0, RCC_APB2RSTR_TIM1RST);
|
|
modifyreg32(STM32_RCC_APB2RSTR, RCC_APB2RSTR_TIM1RST, 0);
|
|
|
|
/* Reset the Counter Mode and set the clock division */
|
|
|
|
putreg16(0, STM32_TIM1_CR1);
|
|
|
|
/* Set the Autoreload value */
|
|
|
|
putreg16(LCD_BL_TIMER_PERIOD, STM32_TIM1_ARR);
|
|
|
|
/* Set the Prescaler value */
|
|
|
|
putreg16(0, STM32_TIM1_PSC);
|
|
|
|
/* Reset the Repetition Counter value */
|
|
|
|
putreg16(0, STM32_TIM1_RCR);
|
|
|
|
/* Generate an update event to reload the Prescaler value immediatly */
|
|
|
|
putreg16(ATIM_EGR_UG, STM32_TIM1_EGR);
|
|
|
|
/* Disable the Channel 1 */
|
|
|
|
ccer = getreg16(STM32_TIM1_CCER);
|
|
ccer &= ~ATIM_CCER_CC1E;
|
|
putreg16(ccer, STM32_TIM1_CCER);
|
|
|
|
/* Get the TIM1 CR2 register value */
|
|
|
|
cr2 = getreg16(STM32_TIM1_CR2);
|
|
|
|
/* Select the Output Compare Mode Bits */
|
|
|
|
ccmr = getreg16(STM32_TIM1_CCMR1);
|
|
ccmr &= ATIM_CCMR1_OC1M_MASK;
|
|
ccmr |= (ATIM_CCMR_MODE_PWM1 << ATIM_CCMR1_OC1M_SHIFT);
|
|
|
|
/* Set the capture compare register value (50% duty) */
|
|
|
|
g_lcddev.power = (CONFIG_LCD_MAXPOWER + 1) / 2;
|
|
putreg16((LCD_BL_TIMER_PERIOD + 1) / 2, STM32_TIM1_CCR1);
|
|
|
|
/* Select the output polarity level == LOW and enable */
|
|
|
|
ccer |= (ATIM_CCER_CC1E | ATIM_CCER_CC1P);
|
|
|
|
/* Reset the Output N Polarity level */
|
|
|
|
ccer &= ~(ATIM_CCER_CC1NP|ATIM_CCER_CC1NE);
|
|
|
|
/* Reset the Ouput Compare and Output Compare N IDLE State */
|
|
|
|
cr2 &= ~(ATIM_CR2_OIS1|ATIM_CR2_OIS1N);
|
|
|
|
/* Write the timer configuration */
|
|
|
|
putreg16(cr2, STM32_TIM1_CR2);
|
|
putreg16(ccmr, STM32_TIM1_CCMR1);
|
|
putreg16(ccer, STM32_TIM1_CCER);
|
|
|
|
/* Set the auto preload enable bit */
|
|
|
|
modifyreg16(STM32_TIM1_CR1, 0, ATIM_CR1_ARPE);
|
|
|
|
/* Enable Backlight Timer */
|
|
|
|
ccer |= ATIM_CR1_CEN;
|
|
putreg16(ccer, STM32_TIM1_CCER);
|
|
|
|
/* Dump timer1 registers */
|
|
|
|
lcddbg("APB2ENR: %08x\n", getreg32(STM32_RCC_APB2ENR));
|
|
lcddbg("CR1: %04x\n", getreg32(STM32_TIM1_CR1));
|
|
lcddbg("CR2: %04x\n", getreg32(STM32_TIM1_CR2));
|
|
lcddbg("SMCR: %04x\n", getreg32(STM32_TIM1_SMCR));
|
|
lcddbg("DIER: %04x\n", getreg32(STM32_TIM1_DIER));
|
|
lcddbg("SR: %04x\n", getreg32(STM32_TIM1_SR));
|
|
lcddbg("EGR: %04x\n", getreg32(STM32_TIM1_EGR));
|
|
lcddbg("CCMR1: %04x\n", getreg32(STM32_TIM1_CCMR1));
|
|
lcddbg("CCMR2: %04x\n", getreg32(STM32_TIM1_CCMR2));
|
|
lcddbg("CCER: %04x\n", getreg32(STM32_TIM1_CCER));
|
|
lcddbg("CNT: %04x\n", getreg32(STM32_TIM1_CNT));
|
|
lcddbg("PSC: %04x\n", getreg32(STM32_TIM1_PSC));
|
|
lcddbg("ARR: %04x\n", getreg32(STM32_TIM1_ARR));
|
|
lcddbg("RCR: %04x\n", getreg32(STM32_TIM1_RCR));
|
|
lcddbg("CCR1: %04x\n", getreg32(STM32_TIM1_CCR1));
|
|
lcddbg("CCR2: %04x\n", getreg32(STM32_TIM1_CCR2));
|
|
lcddbg("CCR3: %04x\n", getreg32(STM32_TIM1_CCR3));
|
|
lcddbg("CCR4: %04x\n", getreg32(STM32_TIM1_CCR4));
|
|
lcddbg("CCR4: %04x\n", getreg32(STM32_TIM1_CCR4));
|
|
lcddbg("CCR4: %04x\n", getreg32(STM32_TIM1_CCR4));
|
|
lcddbg("DMAR: %04x\n", getreg32(STM32_TIM1_DMAR));
|
|
}
|
|
#endif
|
|
|
|
/**************************************************************************************
|
|
* Public Functions
|
|
**************************************************************************************/
|
|
|
|
/**************************************************************************************
|
|
* Name: up_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).
|
|
*
|
|
**************************************************************************************/
|
|
|
|
int up_lcdinitialize(void)
|
|
{
|
|
gvdbg("Initializing\n");
|
|
|
|
/* Configure GPIO pins and configure the FSMC to support the LCD */
|
|
|
|
stm32_selectlcd();
|
|
|
|
/* Configure and enable LCD */
|
|
|
|
up_mdelay(50);
|
|
stm3210e_lcdinitialize();
|
|
|
|
/* Clear the display (setting it to the color 0=black) */
|
|
|
|
stm3210e_lcdclear(0);
|
|
|
|
/* Configure the backlight */
|
|
|
|
stm3210e_backlight();
|
|
return OK;
|
|
}
|
|
|
|
/**************************************************************************************
|
|
* Name: up_lcdgetdev
|
|
*
|
|
* Description:
|
|
* Return a a reference to the LCD object for the specified LCD. This allows support
|
|
* for multiple LCD devices.
|
|
*
|
|
**************************************************************************************/
|
|
|
|
FAR struct lcd_dev_s *up_lcdgetdev(int lcddev)
|
|
{
|
|
DEBUGASSERT(lcddev == 0);
|
|
return &g_lcddev.dev;
|
|
}
|
|
|
|
/**************************************************************************************
|
|
* Name: up_lcduninitialize
|
|
*
|
|
* Description:
|
|
* Unitialize the LCD support
|
|
*
|
|
**************************************************************************************/
|
|
|
|
void up_lcduninitialize(void)
|
|
{
|
|
stm3210e_setpower(&g_lcddev.dev, 0);
|
|
stm32_deselectlcd();
|
|
}
|
|
|
|
/**************************************************************************************
|
|
* Name: stm3210e_lcdclear
|
|
*
|
|
* Description:
|
|
* This is a non-standard LCD interface just for the STM3210E-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
|
|
* dispaly is cleared by simply setting all GRAM memory to the specified color.
|
|
*
|
|
**************************************************************************************/
|
|
|
|
void stm3210e_lcdclear(uint16_t color)
|
|
{
|
|
uint32_t i = 0;
|
|
|
|
stm3210e_setcursor(0, STM3210E_XRES-1);
|
|
stm3210e_gramselect();
|
|
for (i = 0; i < STM3210E_XRES * STM3210E_YRES; i++)
|
|
{
|
|
LCD->value = color;
|
|
}
|
|
}
|
|
|