/**************************************************************************** * drivers/lcd/ssd1680.h * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. The * ASF licenses this file to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance with the * License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations * under the License. * ****************************************************************************/ #ifndef __DRIVERS_LCD_SSD1680_H #define __DRIVERS_LCD_SSD1680_H /**************************************************************************** * Included Files ****************************************************************************/ #include #include #include #include #include /**************************************************************************** * Pre-processor Definitions ****************************************************************************/ /* Configuration ************************************************************/ /* Limitations of the current configuration that I hope to fix someday */ #if !defined(CONFIG_LCD_SSD1680_2_13_V2) && !defined(CONFIG_LCD_SSD1680_2_90) # error "Unknown and unsupported SSD16800 LCD" #endif /**************************************************************************** * Pre-processor Definitions ****************************************************************************/ #ifndef CONFIG_NX_BGCOLOR # define CONFIG_NX_BGCOLOR SSD1680_Y1_BLACK #endif /* SSD1680 Commands *********************************************************/ #define SSD1680_DRIVER_CONTROL 0x01 #define SSD1680_GATE_VOLTAGE 0x03 #define SSD1680_SOURCE_VOLTAGE 0x04 #define SSD1680_PROGOTP_INITIAL 0x08 #define SSD1680_PROGREG_INITIAL 0x09 #define SSD1680_READREG_INITIAL 0x0A #define SSD1680_BOOST_SOFTSTART 0x0C #define SSD1680_GATE_SCAN_POSITION 0x0F #define SSD1680_DEEP_SLEEP 0x10 #define SSD1680_DATA_MODE 0x11 #define SSD1680_SW_RESET 0x12 #define SSD1680_TEMP_CONTROL 0x18 #define SSD1680_TEMP_WRITE 0x1A /* Execute sequence written in Control Register 2 * Wait till SSD1680 is not busy */ #define SSD1680_MASTER_ACTIVATE 0x20 #define SSD1680_DISP_CTRL1 0x21 /* Set control register 2. * 1 byte of data with following bits: * 0x80 - enable clock signal * 0x40 - enable analog * 0x20 - load temperature value (endless busy state. Don't use) * 0x10 - Load LUT (endless busy state. Probably OTP wasn't prepared) * 0x08 - Display Mode 2 * 0x04 - disable OSC * 0x01 - disable clock signal * 0x02 - disable analog */ #define SSD1680_DISP_CTRL2 0x22 #define SSD1680_WRITE_RAM1 0x24 #define SSD1680_WRITE_RAM2 0x26 #define SSD1680_WRITE_VCOM 0x2C #define SSD1680_READ_OTP 0x2D #define SSD1680_READ_STATUS 0x2F #define SSD1680_WRITE_LUT 0x32 #define SSD1680_DUMMY_LINE 0x3A #define SSD1680_GATE_TIME 0x3B #define SSD1680_WRITE_BORDER 0x3C #define SSD1680_SET_RAMXPOS 0x44 #define SSD1680_SET_RAMYPOS 0x45 #define SSD1680_SET_RAMXCOUNT 0x4E #define SSD1680_SET_RAMYCOUNT 0x4F #define SSD1680_SET_ANALOG_BLOCK_CTRL 0x74 #define SSD1680_SET_DIGITAL_BLOCK_CTRL 0x7E #define SSD1680_NOP 0x7F /* Register Values **********************************************************/ # define SSD1680_VALUE_G_VOLTAGE 0x15 # define SSD1680_VALUE_S_VOLTAGE_1 0x41 # define SSD1680_VALUE_S_VOLTAGE_2 0xA8 # define SSD1680_VALUE_S_VOLTAGE_3 0x32 #if defined(CONFIG_LCD_SSD1680_2_13_V2) || defined(CONFIG_LCD_SSD1680_2_13_RED) # define SSD1680_VALUE_VCOM 0x55 # define SSD1680_VALUE_DUMMY_LINE 0x30 # define SSD1680_VALUE_GATE_TIME 0x0A #elif defined(CONFIG_LCD_SSD1680_2_90) || defined(CONFIG_LCD_SSD1680_2_90_RED) # define SSD1680_VALUE_VCOM 0xA8 # define SSD1680_VALUE_DUMMY_LINE 0x1A # define SSD1680_VALUE_GATE_TIME 0x08 #else # error "Not supported display" #endif /* Color Properties *********************************************************/ #if defined(CONFIG_LCD_SSD1680_2_13_V2) || defined(CONFIG_LCD_SSD1680_2_90) /* 1 bit per pixel */ # define SSD1680_DEV_COLORFMT FB_FMT_Y1 # define SSD1680_DEV_BPP 1 # define SSD1680_NO_OF_PLANES 1 #elif defined (CONFIG_LCD_SSD1680_2_13_RED) || (CONFIG_LCD_SSD1680_2_90_RED) /* 2 bits per pixel, it is not agrayscale, but indexed colours */ # define SSD1680_DEV_COLORFMT FB_FMT_Y2 # define SSD1680_DEV_BPP 2 # define SSD1680_NO_OF_PLANES 1 #else # error "Can't prepare macros for not supported display" #endif #if SSD1680_DEV_BPP == 1 # define SSD1680_PDF 3 # define SSD1680_PDV 8 #elif SSD1680_DEV_BPP == 2 # define SSD1680_PDF 2 # define SSD1680_PDV 4 #else # error "SSD1680: Bits per pixel not defined" #endif /* Display Resolution * * The SSD1680 display controller can handle a resolution of 176/296. * The portrait mode is default. * Display size vs its resolution: * 2.13 : 122 / 250 * 2.90 : 128 / 296 */ #if defined(CONFIG_LCD_SSD1680_2_13_V2) || defined(CONFIG_LCD_SSD1680_2_13_RED) # define SSD1680_DEV_GATE_LAYOUT 0x00 # define SSD1680_DEV_NATIVE_XRES 122 # define SSD1680_DEV_NATIVE_YRES 250 #elif defined(CONFIG_LCD_SSD1680_2_90) || defined(CONFIG_LCD_SSD1680_2_90_RED) # define SSD1680_DEV_GATE_LAYOUT 0x00 # define SSD1680_DEV_NATIVE_XRES 128 # define SSD1680_DEV_NATIVE_YRES 296 #else # error "Unknown resolution" #endif /* SSD1680 memory write algorithm */ #if defined(CONFIG_LCD_PORTRAIT) # define SSD1680_VAL_DATA_MODE 0x03 #elif defined(CONFIG_LCD_RPORTRAIT) # define SSD1680_VAL_DATA_MODE 0x02 #elif defined(CONFIG_LCD_LANDSCAPE) # define SSD1680_VAL_DATA_MODE 0x07 #elif defined(CONFIG_LCD_RLANDSCAPE) # define SSD1680_VAL_DATA_MODE 0x07 #else # define SSD1680_VAL_DATA_MODE 0x03 #endif /* Rotating screen if the orientation is changed */ #if defined(CONFIG_LCD_PORTRAIT) || defined(CONFIG_LCD_RPORTRAIT) /* Calculate number of bytes per row. * In case of tri-color display there are two 1-bit data arrays * In order to simplify communication with controller, we need to provide * a number that is multiplication of 8 (not 4 even if we have 2 bpp) */ # define SSD1680_DEV_ROWSIZE \ ((SSD1680_DEV_NATIVE_XRES + SSD1680_PDV - 1) >> SSD1680_PDF) # define SSD1680_DEV_FB_XRES SSD1680_DEV_NATIVE_XRES # define SSD1680_DEV_FB_YRES SSD1680_DEV_NATIVE_YRES #else /* Landstape */ # define SSD1680_DEV_ROWSIZE \ ((SSD1680_DEV_NATIVE_YRES + SSD1680_PDV - 1) >> SSD1680_PDF) # define SSD1680_DEV_FB_XRES SSD1680_DEV_NATIVE_YRES # define SSD1680_DEV_FB_YRES SSD1680_DEV_NATIVE_XRES #endif /* Landstape */ #define SSD1680_DEV_X_ROUND_UP \ (((SSD1680_DEV_NATIVE_XRES + SSD1680_PDV - 1) >> SSD1680_PDF) << SSD1680_PDF) #define SSD1680_DEV_Y_ROUND_UP \ (((SSD1680_DEV_NATIVE_YRES + SSD1680_PDV - 1) >> SSD1680_PDF) << SSD1680_PDF) #define SSD1680_DEV_FBSIZE ((SSD1680_DEV_ROWSIZE) * (SSD1680_DEV_FB_YRES)) /**************************************************************************** * Public Type Definition ****************************************************************************/ /**************************************************************************** * Public Function Prototypes ****************************************************************************/ #endif /* __DRIVERS_LCD_SSD1680_H */