2020-10-27 13:22:36 +01:00
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/****************************************************************************
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2015-07-15 19:46:28 +02:00
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* drivers/lcd/ssd1306.h
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*
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2021-03-13 10:55:07 +01:00
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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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2015-07-15 19:46:28 +02:00
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*
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2021-03-13 10:55:07 +01:00
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* http://www.apache.org/licenses/LICENSE-2.0
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2015-07-15 19:46:28 +02:00
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*
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2021-03-13 10:55:07 +01:00
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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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2015-07-15 19:46:28 +02:00
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*
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2020-10-27 13:22:36 +01:00
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****************************************************************************/
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2015-07-15 19:46:28 +02:00
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#ifndef __DRIVERS_LCD_SSD1306_H
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2020-01-31 19:07:39 +01:00
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#define __DRIVERS_LCD_SSD1306_H
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2015-07-15 19:46:28 +02:00
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2020-10-27 13:22:36 +01:00
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/****************************************************************************
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2015-07-15 19:46:28 +02:00
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* Included Files
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2020-10-27 13:22:36 +01:00
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****************************************************************************/
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2015-07-15 19:46:28 +02:00
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#include <nuttx/config.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include <nuttx/lcd/lcd.h>
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#include <nuttx/lcd/ssd1306.h>
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2020-10-27 13:22:36 +01:00
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/****************************************************************************
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2015-07-15 19:46:28 +02:00
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* Pre-processor Definitions
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2020-10-27 13:22:36 +01:00
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****************************************************************************/
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2015-07-15 19:46:28 +02:00
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2020-10-27 13:22:36 +01:00
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/* Configuration ************************************************************/
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2015-07-15 19:46:28 +02:00
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2020-10-27 13:22:36 +01:00
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/* Limitations of the current configuration that I hope to fix someday */
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2015-07-15 19:46:28 +02:00
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2020-10-27 13:22:36 +01:00
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#if !defined(CONFIG_LCD_SH1106_OLED_132) && \
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!defined(CONFIG_LCD_UG2864HSWEG01) && \
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!defined(CONFIG_LCD_UG2832HSWEG04) && \
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!defined(CONFIG_LCD_DD12864WO4A) && \
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2022-05-09 13:43:38 +02:00
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!defined(CONFIG_LCD_HILETGO) && \
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!defined(CONFIG_LCD_SSD1306_CUSTOM)
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2015-07-15 19:46:28 +02:00
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# error "Unknown and unsupported SSD1306 LCD"
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#endif
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#if defined(CONFIG_LCD_PORTRAIT) || defined(CONFIG_LCD_RPORTRAIT)
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# warning "No support for portrait modes"
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# undef CONFIG_LCD_LANDSCAPE
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# define CONFIG_LCD_LANDSCAPE 1
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# undef CONFIG_LCD_PORTRAIT
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# undef CONFIG_LCD_RLANDSCAPE
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# undef CONFIG_LCD_RPORTRAIT
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#endif
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2020-10-27 13:22:36 +01:00
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/****************************************************************************
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2016-08-14 00:53:23 +02:00
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* Pre-processor Definitions
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2020-10-27 13:22:36 +01:00
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****************************************************************************/
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2016-08-14 00:53:23 +02:00
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#ifndef CONFIG_NX_BGCOLOR
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# define CONFIG_NX_BGCOLOR SSD1306_Y1_BLACK
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#endif
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2020-10-27 13:22:36 +01:00
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/* SSD1306 Commands *********************************************************/
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2015-07-15 19:46:28 +02:00
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#define SSD1306_SETCOLL(ad) (0x00 | ((ad) & 0x0f)) /* Set Lower Column Address: (00h - 0fh) */
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#define SSD1306_SETCOLH(ad) (0x10 | ((ad) & 0x0f)) /* Set Higher Column Address: (10h - 1fh) */
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#define SSD1306_STARTLINE(ln) (0x40 | ((ln) & 0x3f)) /* Set Display Start Line: (40h - 7fh) */
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#define SSD1306_CONTRAST_MODE (0x81) /* Set Contrast Control Register: (Double Bytes Command) */
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# define SSD1306_CONTRAST(c) (c)
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#define SSD1306_SEGREMAP(m) (0xa0 | ((m) & 0x01)) /* Set Segment Re-map: (a0h - a1h) */
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# define SSD1306_REMAPRIGHT SSD1306_SEGREMAP(0) /* Right rotation */
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# define SSD1306_REMAPPLEFT SSD1306_SEGREMAP(1) /* Left rotation */
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#define SSD1306_EDISPOFFON(s) (0xa4 | ((s) & 0x01)) /* Set Entire Display OFF/ON: (a4h - a5h) */
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# define SSD1306_EDISPOFF SSD1306_EDISPOFFON(0) /* Display off */
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# define SSD1306_EDISPON SSD1306_EDISPOFFON(1) /* Display on */
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#define SSD1306_NORMREV(s) (0xa6 | ((s) & 0x01)) /* Set Normal/Reverse Display: (a6h -a7h) */
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# define SSD1306_NORMAL SSD1306_NORMREV(0) /* Normal display */
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# define SSD1306_REVERSE SSD1306_NORMREV(1) /* Reverse display */
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#define SSD1306_MRATIO_MODE (0xa8) /* Set Multiplex Ration: (Double Bytes Command) */
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# define SSD1306_MRATIO(d) ((d) & 0x3f)
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#define SSD1306_DCDC_MODE (0xad) /* Set DC-DC OFF/ON: (Double Bytes Command) */
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# define SSD1306_DCDC_OFF (0x8a)
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# define SSD1306_DCDC_ON (0x8b)
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#define SSD1306_DISPOFFON(s) (0xae | ((s) & 0x01)) /* Display OFF/ON: (aeh - afh) */
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# define SSD1306_DISPOFF SSD1306_DISPOFFON(0) /* Display off */
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# define SSD1306_DISPON SSD1306_DISPOFFON(1) /* Display on */
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#define SSD1306_PAGEADDR(a) (0xb0 | ((a) & 0x0f)) /* Set Page Address: (b0h - b7h) */
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#define SSD1306_SCANDIR(d) (0xc0 | ((d) & 0x08)) /* Set Common Output Scan Direction: (c0h - c8h) */
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# define SSD1306_SCANFROMCOM0 SSD1306_SCANDIR(0x00) /* Scan from COM[0] to COM[n-1]*/
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# define SSD1306_SCANTOCOM0 SSD1306_SCANDIR(0x08) /* Scan from COM[n-1] to COM[0] */
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#define SSD1306_DISPOFFS_MODE (0xd3) /* Set Display Offset: (Double Bytes Command) */
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# define SSD1306_DISPOFFS(o) ((o) & 0x3f)
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#define SSD1306_CLKDIV_SET (0xd5) /* Set Display Clock Divide Ratio/Oscillator Frequency: (Double Bytes Command) */
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# define SSD1306_CLKDIV(f,d) ((((f) & 0x0f) << 4) | ((d) & 0x0f))
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#define SSD1306_CHRGPER_SET (0xd9) /* Set Dis-charge/Pre-charge Period: (Double Bytes Command) */
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# define SSD1306_CHRGPER(d,p) ((((d) & 0x0f) << 4) | ((p) & 0x0f))
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#define SSD1306_CMNPAD_CONFIG (0xda) /* Set Common pads hardware configuration: (Double Bytes Command) */
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# define SSD1306_CMNPAD(c) ((0x02) | ((c) & 0x10))
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#define SSD1306_VCOM_SET (0xdb) /* Set VCOM Deselect Level: (Double Byte Command) */
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# define SSD1306_VCOM(v) (v)
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#define SSD1306_CHRPUMP_SET (0x8d) /* Charge Pump Setting */
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# define SSD1306_CHRPUMP_ON (0x14)
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# define SSD1306_CHRPUMP_OFF (0x10)
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#define SSD1306_RMWSTART (0xe0) /* Read-Modify-Write: (e0h) */
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#define SSD1306_NOP (0xe3) /* NOP: (e3h) */
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#define SSD1306_END (0xee) /* End: (eeh) */
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#define SSD1306_WRDATA(d) (d) /* Write Display Data */
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#define SSD1306_STATUS_BUSY (0x80) /* Read Status */
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#define SSD1306_STATUS_ONOFF (0x40)
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#define SSD1306_RDDATA(d) (d) /* Read Display Data */
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2017-08-22 16:32:52 +02:00
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#define SSD1309_PROTOFF (0xfd)
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#define SSD1309_SETMEMORY (0x20)
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# define SSD1309_MEMADDR(ma) ((ma) & 0x03)
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2020-10-27 13:22:36 +01:00
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/* Color Properties *********************************************************/
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2015-07-15 19:46:28 +02:00
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/* Display Resolution
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*
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2020-10-27 13:22:36 +01:00
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* The SSD1306 display controller can handle a resolution of 132x64.
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* The UG-2864HSWEG01 on the base board is 128x64; the UG-2832HSWEG04
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* is 128x32.
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2015-07-15 19:46:28 +02:00
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*/
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#if defined(CONFIG_LCD_UG2864HSWEG01)
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# define SSD1306_DEV_NATIVE_XRES 128 /* Only 128 of 131 columns used */
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# define SSD1306_DEV_NATIVE_YRES 64 /* 8 pages each 8 rows */
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# define SSD1306_DEV_XOFFSET 2 /* Offset to logical column 0 */
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# define SSD1306_DEV_PAGES 8 /* 8 pages */
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# define SSD1306_DEV_CMNPAD 0x12 /* COM configuration */
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2017-08-22 16:32:52 +02:00
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# undef IS_SSD1309
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2015-07-15 19:46:28 +02:00
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#elif defined(CONFIG_LCD_UG2832HSWEG04)
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# define SSD1306_DEV_NATIVE_XRES 128 /* Only 128 of 131 columns used */
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# define SSD1306_DEV_NATIVE_YRES 32 /* 4 pages each 8 rows */
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# define SSD1306_DEV_XOFFSET 2 /* Offset to logical column 0 */
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# define SSD1306_DEV_PAGES 4 /* 4 pages */
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# define SSD1306_DEV_CMNPAD 0x02 /* COM configuration */
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2017-08-22 16:32:52 +02:00
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# undef IS_SSD1309
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2016-08-14 00:20:20 +02:00
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#elif defined(CONFIG_LCD_SH1106_OLED_132)
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2016-08-14 19:45:20 +02:00
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# define SSD1306_DEV_NATIVE_XRES 128 /* Only 128 columns used, supporting 132 is a bit difficult */
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2016-08-14 00:20:20 +02:00
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# define SSD1306_DEV_NATIVE_YRES 64 /* 8 pages each 8 rows */
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# define SSD1306_DEV_XOFFSET 0 /* Offset to logical column 0 */
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# define SSD1306_DEV_PAGES 8 /* 8 pages */
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# define SSD1306_DEV_CMNPAD 0x12 /* COM configuration */
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2017-08-22 16:32:52 +02:00
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# undef IS_SSD1309
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2018-02-10 16:43:12 +01:00
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#elif defined(CONFIG_LCD_HILETGO)
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# define SSD1306_DEV_NATIVE_XRES 128 /* Only 128 of 132 columns supported */
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# define SSD1306_DEV_NATIVE_YRES 64 /* 8 pages each 8 rows */
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# define SSD1306_DEV_XOFFSET 0 /* Offset to logical column 0 */
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# define SSD1306_DEV_PAGES 8 /* 8 pages */
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# define SSD1306_DEV_CMNPAD 0x12 /* COM configuration */
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# undef IS_SSD1309
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2017-08-22 16:32:52 +02:00
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#elif defined(CONFIG_LCD_DD12864WO4A)
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# define SSD1306_DEV_NATIVE_XRES 128 /* 128 of 128 columns used */
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# define SSD1306_DEV_NATIVE_YRES 64 /* 8 pages each 8 rows */
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# define SSD1306_DEV_XOFFSET 0 /* Offset to logical column 0 */
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# define SSD1306_DEV_PAGES 8 /* 8 pages */
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# define SSD1306_DEV_CMNPAD 0x10 /* COM configuration */
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# define IS_SSD1309 1 /* SSD1309 based LCD. */
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2022-05-09 13:43:38 +02:00
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#elif defined(CONFIG_LCD_SSD1306_CUSTOM)
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# define SSD1306_DEV_NATIVE_XRES CONFIG_LCD_SSD1306_CUSTOM_DEV_NATIVE_XRES /* Only 128 of 131 columns used */
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# define SSD1306_DEV_NATIVE_YRES CONFIG_LCD_SSD1306_CUSTOM_DEV_NATIVE_YRES /* 4 pages each 8 rows */
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# define SSD1306_DEV_XOFFSET CONFIG_LCD_SSD1306_CUSTOM_DEV_XOFFSET /* Offset to logical column 0 */
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# define SSD1306_DEV_PAGES CONFIG_LCD_SSD1306_CUSTOM_DEV_PAGES /* 4 pages */
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# define SSD1306_DEV_CMNPAD CONFIG_LCD_SSD1306_CUSTOM_DEV_CMNPAD /* COM configuration */
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# undef IS_SSD1309
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2015-07-15 19:46:28 +02:00
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#endif
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#if defined(CONFIG_LCD_LANDSCAPE) || defined(CONFIG_LCD_RLANDSCAPE)
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# define SSD1306_DEV_XRES SSD1306_DEV_NATIVE_XRES
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# define SSD1306_DEV_YRES SSD1306_DEV_NATIVE_YRES
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#else
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# define SSD1306_DEV_XRES SSD1306_DEV_NATIVE_YRES
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# define SSD1306_DEV_YRES SSD1306_DEV_NATIVE_XRES
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#endif
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#define SSD1306_DEV_DUTY (SSD1306_DEV_NATIVE_YRES-1)
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/* Bytes per logical row and actual device row */
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2016-08-14 00:20:20 +02:00
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#if defined(CONFIG_LCD_SH1106_OLED_132)
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2016-08-14 21:47:07 +02:00
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# define SSD1306_DEV_XSTRIDE (SSD1306_DEV_XRES >> 3)
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2016-08-14 00:20:20 +02:00
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#else
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2016-08-14 00:53:23 +02:00
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# define SSD1306_DEV_XSTRIDE (SSD1306_DEV_XRES >> 3)
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2016-08-14 00:20:20 +02:00
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#endif
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2015-07-15 19:46:28 +02:00
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#define SSD1306_DEV_YSTRIDE (SSD1306_DEV_YRES >> 3)
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/* Color depth and format */
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#define SSD1306_DEV_BPP 1
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#define SSD1306_DEV_COLORFMT FB_FMT_Y1
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/* Default contrast */
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#define SSD1306_DEV_CONTRAST (128)
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2017-08-22 16:32:52 +02:00
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#define SSD1309_DEV_CONTRAST (255)
|
2015-07-15 19:46:28 +02:00
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/* The size of the shadow frame buffer or one row buffer.
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*
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* Frame buffer size: 128 columns x 64 rows / 8 bits-per-pixel
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* Row size: 128 columns x 8 rows-per-page / 8 bits-per-pixel
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*/
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#define SSD1306_DEV_FBSIZE (SSD1306_DEV_XSTRIDE * SSD1306_DEV_YRES)
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#define SSD1306_DEV_ROWSIZE (SSD1306_DEV_XSTRIDE)
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/* Orientation. There seem to be device differences. */
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#if defined(CONFIG_LCD_UG2864HSWEG01)
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# if defined(CONFIG_LCD_LANDSCAPE)
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# undef SSD1306_DEV_REVERSEX
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# undef SSD1306_DEV_REVERSEY
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# elif defined(CONFIG_LCD_RLANDSCAPE)
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# define SSD1306_DEV_REVERSEX 1
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# define SSD1306_DEV_REVERSEY 1
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# endif
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#elif defined(CONFIG_LCD_UG2832HSWEG04)
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# if defined(CONFIG_LCD_LANDSCAPE)
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# define SSD1306_DEV_REVERSEX 1
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# undef SSD1306_DEV_REVERSEY
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# elif defined(CONFIG_LCD_RLANDSCAPE)
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# undef SSD1306_DEV_REVERSEX
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# define SSD1306_DEV_REVERSEY 1
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# endif
|
2016-08-14 00:20:20 +02:00
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#elif defined(CONFIG_LCD_SH1106_OLED_132)
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# if defined(CONFIG_LCD_LANDSCAPE)
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# undef SSD1306_DEV_REVERSEX
|
|
|
|
|
# define SSD1306_DEV_REVERSEY 1
|
|
|
|
|
# elif defined(CONFIG_LCD_RLANDSCAPE)
|
|
|
|
|
# define SSD1306_DEV_REVERSEX 1
|
|
|
|
|
# undef SSD1306_DEV_REVERSEY
|
|
|
|
|
# endif
|
2017-08-22 16:32:52 +02:00
|
|
|
#elif defined(CONFIG_LCD_DD12864WO4A)
|
|
|
|
|
# if defined(CONFIG_LCD_LANDSCAPE)
|
|
|
|
|
# define SSD1306_DEV_REVERSEX 1
|
|
|
|
|
# undef SSD1306_DEV_REVERSEY
|
|
|
|
|
# elif defined(CONFIG_LCD_RLANDSCAPE)
|
|
|
|
|
# undef SSD1306_DEV_REVERSEX
|
|
|
|
|
# define SSD1306_DEV_REVERSEY 1
|
|
|
|
|
# endif
|
2022-05-09 13:43:38 +02:00
|
|
|
#elif defined(CONFIG_LCD_SSD1306_CUSTOM)
|
|
|
|
|
# if defined(CONFIG_LCD_LANDSCAPE)
|
|
|
|
|
# define SSD1306_DEV_REVERSEX 1
|
|
|
|
|
# undef SSD1306_DEV_REVERSEY
|
|
|
|
|
# elif defined(CONFIG_LCD_RLANDSCAPE)
|
|
|
|
|
# undef SSD1306_DEV_REVERSEX
|
|
|
|
|
# define SSD1306_DEV_REVERSEY 1
|
|
|
|
|
# endif
|
2015-07-15 19:46:28 +02:00
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/* Bit helpers */
|
|
|
|
|
|
|
|
|
|
#define LS_BIT (1 << 0)
|
|
|
|
|
#define MS_BIT (1 << 7)
|
|
|
|
|
|
2020-10-27 13:22:36 +01:00
|
|
|
/****************************************************************************
|
2015-07-15 19:46:28 +02:00
|
|
|
* Public Type Definition
|
2020-10-27 13:22:36 +01:00
|
|
|
****************************************************************************/
|
2015-07-15 19:46:28 +02:00
|
|
|
|
|
|
|
|
/* This structure describes the state of the SSD1306 driver */
|
|
|
|
|
|
|
|
|
|
struct ssd1306_dev_s
|
|
|
|
|
{
|
|
|
|
|
struct lcd_dev_s dev; /* Publicly visible device structure */
|
|
|
|
|
|
|
|
|
|
/* Private LCD-specific information follows */
|
|
|
|
|
|
|
|
|
|
#ifdef CONFIG_LCD_SSD1306_SPI
|
|
|
|
|
FAR struct spi_dev_s *spi; /* Cached SPI device reference */
|
|
|
|
|
#else
|
2018-02-15 17:43:05 +01:00
|
|
|
FAR struct i2c_master_s *i2c; /* Cached I2C device reference */
|
2015-07-15 21:28:31 +02:00
|
|
|
uint8_t addr; /* 7-bit I2C address */
|
2015-07-15 19:46:28 +02:00
|
|
|
#endif
|
2022-06-17 12:17:18 +02:00
|
|
|
uint8_t devno; /* LCD device instance */
|
2015-07-15 19:46:28 +02:00
|
|
|
uint8_t contrast; /* Current contrast setting */
|
|
|
|
|
bool on; /* true: display is on */
|
2017-08-22 16:40:27 +02:00
|
|
|
bool is_conf; /* true: display had been configured */
|
|
|
|
|
|
|
|
|
|
FAR const struct ssd1306_priv_s *board_priv; /* Board specific structure */
|
2015-07-15 19:46:28 +02:00
|
|
|
|
2020-10-27 13:22:36 +01:00
|
|
|
/* The SSD1306 does not support reading from the display memory in SPI
|
|
|
|
|
* mode. Since there is 1 BPP and access is byte-by-byte, it is necessary
|
|
|
|
|
* to keep a shadow copy of the framebuffer memory. At 128x64, this
|
|
|
|
|
* amounts to 1 KB.
|
|
|
|
|
*/
|
2015-07-15 19:46:28 +02:00
|
|
|
|
|
|
|
|
uint8_t fb[SSD1306_DEV_FBSIZE];
|
2022-06-17 12:17:18 +02:00
|
|
|
uint8_t runbuffer[SSD1306_DEV_ROWSIZE];
|
2015-07-15 19:46:28 +02:00
|
|
|
};
|
|
|
|
|
|
2020-10-27 13:22:36 +01:00
|
|
|
/****************************************************************************
|
2015-07-15 19:46:28 +02:00
|
|
|
* Public Function Prototypes
|
2020-10-27 13:22:36 +01:00
|
|
|
****************************************************************************/
|
2015-07-15 19:46:28 +02:00
|
|
|
|
2018-02-19 14:32:44 +01:00
|
|
|
int ssd1306_sendbyte(FAR struct ssd1306_dev_s *priv, uint8_t regval);
|
2020-10-27 13:22:36 +01:00
|
|
|
int ssd1306_sendblk(FAR struct ssd1306_dev_s *priv, uint8_t *data,
|
|
|
|
|
uint8_t len);
|
2015-07-15 19:46:28 +02:00
|
|
|
|
|
|
|
|
#ifdef CONFIG_LCD_SSD1306_SPI
|
|
|
|
|
void ssd1306_select(FAR struct ssd1306_dev_s *priv, bool cs);
|
|
|
|
|
void ssd1306_cmddata(FAR struct ssd1306_dev_s *priv, bool cmd);
|
2017-02-09 14:45:25 +01:00
|
|
|
void ssd1306_configspi(FAR struct spi_dev_s *spi);
|
2015-07-15 19:46:28 +02:00
|
|
|
#else
|
|
|
|
|
# define ssd1306_select(priv, cs)
|
|
|
|
|
# define ssd1306_cmddata(priv, cmd)
|
|
|
|
|
# define ssd1306_configspi(spi)
|
2017-06-28 21:17:17 +02:00
|
|
|
#endif
|
2015-07-15 19:46:28 +02:00
|
|
|
|
|
|
|
|
#endif /* __DRIVERS_LCD_SSD1306_H */
|
