diff options
Diffstat (limited to 'nuttx/drivers/lcd/ug-2864hsweg01.c')
| -rw-r--r-- | nuttx/drivers/lcd/ug-2864hsweg01.c | 1218 |
1 files changed, 0 insertions, 1218 deletions
diff --git a/nuttx/drivers/lcd/ug-2864hsweg01.c b/nuttx/drivers/lcd/ug-2864hsweg01.c deleted file mode 100644 index 02a59b104..000000000 --- a/nuttx/drivers/lcd/ug-2864hsweg01.c +++ /dev/null @@ -1,1218 +0,0 @@ -/************************************************************************************** - * drivers/lcd/ug-2864hsweg01.c - * Driver for Univision UG-2864HSWEG01 OLED display (wih SSD1306 controller) in SPI - * mode - * - * Copyright (C) 2012 Gregory Nutt. All rights reserved. - * Author: Gregory Nutt <gnutt@nuttx.org> - * - * References: - * 1. Product Specification (Preliminary), Part Name: OEL Display Module, Part ID: - * UG-2864HSWEG01, Doc No: SAS1-9046-B, Univision Technology Inc. - * 2. SSD1306, 128 X 64 Dot Matrix OLED/PLED, Preliminary Segment/Common Driver with - * Controller, Solomon Systech - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * 3. Neither the name NuttX nor the names of its contributors may be - * used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE - * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, - * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS - * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED - * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN - * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - * - **************************************************************************************/ -/************************************************************************************** - * Device memory organization: - * - * +----------------------------+ - * | Column | - * --------+----+---+---+---+-...-+-----+ - * Page | 0 | 1 | 2 | 3 | ... | 127 | - * --------+----+---+---+---+-...-+-----+ - * Page 0 | D0 | X | | | | | - * | D1 | X | | | | | - * | D2 | X | | | | | - * | D3 | X | | | | | - * | D4 | X | | | | | - * | D5 | X | | | | | - * | D6 | X | | | | | - * | D7 | X | | | | | - * --------+----+---+---+---+-...-+-----+ - * Page 1 | | | | | | | - * --------+----+---+---+---+-...-+-----+ - * Page 2 | | | | | | | - * --------+----+---+---+---+-...-+-----+ - * Page 3 | | | | | | | - * --------+----+---+---+---+-...-+-----+ - * Page 4 | | | | | | | - * --------+----+---+---+---+-...-+-----+ - * Page 5 | | | | | | | - * --------+----+---+---+---+-...-+-----+ - * Page 6 | | | | | | | - * --------+----+---+---+---+-...-+-----+ - * Page 7 | | | | | | | - * --------+----+---+---+---+-...-+-----+ - * - * -----------------------------------+--------------------------------------- - * Landscape Display: | Reverse Landscape Display: - * --------+-----------------------+ | --------+---------------------------+ - * | Column | | | Column | - * --------+---+---+---+-...-+-----+ | --------+-----+-----+-----+-...-+---+ - * Page 0 | 0 | 1 | 2 | | 127 | | Page 7 | 127 | 126 | 125 | | 0 | - * --------+---+---+---+-...-+-----+ | --------+-----+-----+-----+-...-+---+ - * Page 1 | V | | Page 6 | ^ | - * --------+---+---+---+-...-+-----+ | --------+-----+-----+-----+-...-+---+ - * Page 2 | V | | Page 5 | ^ | - * --------+---+---+---+-...-+-----+ | --------+-----+-----+-----+-...-+---+ - * Page 3 | V | | Page 4 | ^ | - * --------+---+---+---+-...-+-----+ | --------+-----+-----+-----+-...-+---+ - * Page 4 | V | | Page 3 | ^ | - * --------+---+---+---+-...-+-----+ | --------+-----+-----+-----+-...-+---+ - * Page 5 | V | | Page 2 | ^ | - * --------+---+---+---+-...-+-----+ | --------+-----+-----+-----+-...-+---+ - * Page 6 | V | | Page 1 | ^ | - * --------+---+---+---+-...-+-----+ | --------+-----+-----+-----+-...-+---+ - * Page 7 | V | | Page 0 | ^ | - * --------+---+---+---+-...-+-----+ | --------+-----+-----+-----+-...-+---+ - * -----------------------------------+--------------------------------------- - * - * -----------------------------------+--------------------------------------- - * Portrait Display: | Reverse Portrait Display: - * -----------+---------------------+ | -----------+---------------------+ - * | Page | | | Page | - * -----------+---+---+---+-...-+---+ | -----------+---+---+---+-...-+---+ - * Column 0 | 0 | 1 | 2 | | 7 | | Column 127 | 7 | 6 | 5 | | 0 | - * -----------+---+---+---+-...-+---+ | -----------+---+---+---+-...-+---+ - * Column 1 | > > > > > | | Column 126 | | - * -----------+---+---+---+-...-+---+ | -----------+---+---+---+-...-+---+ - * Column 2 | | | Column 125 | | - * -----------+---+---+---+-...-+---+ | -----------+---+---+---+-...-+---+ - * ... | | | ... | | - * -----------+---+---+---+-...-+---+ | -----------+---+---+---+-...-+---+ - * Column 127 | | | Column 0 | < < < < < | - * -----------+---+---+---+-...-+---+ | -----------+---+---+---+-...-+---+ - * -----------------------------------+---------------------------------------- - **************************************************************************************/ - -/************************************************************************************** - * Included Files - **************************************************************************************/ - -#include <nuttx/config.h> - -#include <sys/types.h> -#include <stdint.h> -#include <stdbool.h> -#include <string.h> -#include <errno.h> -#include <debug.h> - -#include <nuttx/arch.h> -#include <nuttx/spi.h> -#include <nuttx/lcd/lcd.h> -#include <nuttx/lcd/ug-2864hsweg01.h> - -#include <arch/irq.h> - -#ifdef CONFIG_LCD_UG2864HSWEG01 - -/************************************************************************************** - * Pre-processor Definitions - **************************************************************************************/ -/* Configuration **********************************************************************/ -/* Limitations of the current configuration that I hope to fix someday */ - -#if CONFIG_UG2864HSWEG01_NINTERFACES != 1 -# warning "This implementation supports only a single OLED device" -# undef CONFIG_UG2864HSWEG01_NINTERFACES -# define CONFIG_UG2864HSWEG01_NINTERFACES 1 -#endif - -#if defined(CONFIG_LCD_PORTRAIT) || defined(CONFIG_LCD_RPORTRAIT) -# warning "No support yet for portrait modes" -# define CONFIG_LCD_LANDSCAPE 1 -# undef CONFIG_LCD_PORTRAIT -# undef CONFIG_LCD_RLANDSCAPE -# undef CONFIG_LCD_RPORTRAIT -#elif defined(CONFIG_LCD_RLANDSCAPE) -# warning "Reverse landscape mode is untested and, hence, probably buggy" -#endif - -/* SSD1306 Commands *******************************************************************/ - -#define SSD1306_SETCOLL(ad) (0x00 | ((ad) & 0x0f)) /* Set Lower Column Address: (00h - 0fh) */ -#define SSD1306_SETCOLH(ad) (0x10 | ((ad) & 0x0f)) /* Set Higher Column Address: (10h - 1fh) */ -#define SSD1306_STARTLINE(ln) (0x40 | ((ln) & 0x3f)) /* Set Display Start Line: (40h - 7fh) */ -#define SSD1306_CONTRAST_MODE (0x81) /* Set Contrast Control Register: (Double Bytes Command) */ -# define SSD1306_CONTRAST(c) (c) -#define SSD1306_SEGREMAP(m) (0xa0 | ((m) & 0x01)) /* Set Segment Re-map: (a0h - a1h) */ -# define SSD1306_REMAPRIGHT SSD1306_SEGREMAP(0) /* Right rotation */ -# define SSD1306_REMAPPLEFT SSD1306_SEGREMAP(1) /* Left rotation */ -#define SSD1306_EDISPOFFON(s) (0xa4 | ((s) & 0x01)) /* Set Entire Display OFF/ON: (a4h - a5h) */ -# define SSD1306_EDISPOFF SSD1306_EDISPOFFON(0) /* Display off */ -# define SSD1306_EDISPON SSD1306_EDISPOFFON(1) /* Display on */ -#define SSD1306_NORMREV(s) (0xa6 | ((s) & 0x01)) /* Set Normal/Reverse Display: (a6h -a7h) */ -# define SSD1306_NORMAL SSD1306_NORMREV(0) /* Normal display */ -# define SSD1306_REVERSE SSD1306_NORMREV(1) /* Reverse display */ -#define SSD1306_MRATIO_MODE (0xa8) /* Set Multiplex Ration: (Double Bytes Command) */ -# define SSD1306_MRATIO(d) ((d) & 0x3f) -#define SSD1306_DCDC_MODE (0xad) /* Set DC-DC OFF/ON: (Double Bytes Command) */ -# define SSD1306_DCDC_OFF (0x8a) -# define SSD1306_DCDC_ON (0x8b) - -#define SSD1306_DISPOFFON(s) (0xae | ((s) & 0x01)) /* Display OFF/ON: (aeh - afh) */ -# define SSD1306_DISPOFF SSD1306_DISPOFFON(0) /* Display off */ -# define SSD1306_DISPON SSD1306_DISPOFFON(1) /* Display on */ -#define SSD1306_PAGEADDR(a) (0xb0 | ((a) & 0x0f)) /* Set Page Address: (b0h - b7h) */ -#define SSD1306_SCANDIR(d) (0xc0 | ((d) & 0x08)) /* Set Common Output Scan Direction: (c0h - c8h) */ -# define SSD1306_SCANFROMCOM0 SSD1306_SCANDIR(0x00) /* Scan from COM[0] to COM[n-1]*/ -# define SSD1306_SCANTOCOM0 SSD1306_SCANDIR(0x08) /* Scan from COM[n-1] to COM[0] */ -#define SSD1306_DISPOFFS_MODE (0xd3) /* Set Display Offset: (Double Bytes Command) */ -# define SSD1306_DISPOFFS(o) ((o) & 0x3f) -#define SSD1306_CLKDIV_SET (0xd5) /* Set Display Clock Divide Ratio/Oscillator Frequency: (Double Bytes Command) */ -# define SSD1306_CLKDIV(f,d) ((((f) & 0x0f) << 4) | ((d) & 0x0f)) -#define SSD1306_CHRGPER_SET (0xd9) /* Set Dis-charge/Pre-charge Period: (Double Bytes Command) */ -# define SSD1306_CHRGPER(d,p) ((((d) & 0x0f) << 4) | ((p) & 0x0f)) -#define SSD1306_CMNPAD_CONFIG (0xda) /* Set Common pads hardware configuration: (Double Bytes Command) */ -# define SSD1306_CMNPAD(c) ((0x02) | ((c) & 0x10)) -#define SSD1306_VCOM_SET (0xdb) /* Set VCOM Deselect Level: (Double Bytes Command) */ -# define SSD1306_VCOM(v) (v) - -#define SSD1306_CHRPUMP_SET (0x8d) /* Charge Pump Setting */ -# define SSD1306_CHRPUMP_ON (0x14) -# define SSD1306_CHRPUMP_OFF (0x10) - -#define SSD1306_RMWSTART (0xe0) /* Read-Modify-Write: (e0h) */ -#define SSD1306_NOP (0xe3) /* NOP: (e3h) */ -#define SSD1306_END (0xee) /* End: (eeh) */ - -#define SSD1306_WRDATA(d) (d) /* Write Display Data */ -#define SSD1306_STATUS_BUSY (0x80) /* Read Status */ -#define SSD1306_STATUS_ONOFF (0x40) -#define SSD1306_RDDATA(d) (d) /* Read Display Data */ - -/* Color Properties *******************************************************************/ -/* Display Resolution - * - * The SSD1306 display controller can handle a resolution of 132x64. The UG-2864HSWEG01 - * on the base board is 128x64. - */ - -#define UG2864HSWEG01_DEV_XRES 128 /* Only 128 of 131 columns used */ -#define UG2864HSWEG01_DEV_YRES 64 /* 8 pages each 8 rows */ -#define UG2864HSWEG01_DEV_XOFFSET 2 /* Offset to logical column 0 */ -#define UG2864HSWEG01_DEV_PAGES 8 /* 8 pages */ - -#if defined(CONFIG_LCD_LANDSCAPE) || defined(CONFIG_LCD_RLANDSCAPE) -# define UG2864HSWEG01_XRES UG2864HSWEG01_DEV_XRES -# define UG2864HSWEG01_YRES UG2864HSWEG01_DEV_YRES -#else -# define UG2864HSWEG01_XRES UG2864HSWEG01_DEV_YRES -# define UG2864HSWEG01_YRES UG2864HSWEG01_DEV_XRES -#endif - -/* Color depth and format */ - -#define UG2864HSWEG01_BPP 1 -#define UG2864HSWEG01_COLORFMT FB_FMT_Y1 - -/* Bytes per logical row and actual device row */ - -#define UG2864HSWEG01_XSTRIDE (UG2864HSWEG01_XRES >> 3) -#define UG2864HSWEG01_YSTRIDE (UG2864HSWEG01_YRES >> 3) - -/* Default contrast */ - -#define UG2864HSWEG01_CONTRAST (128) - -/* The size of the shadow frame buffer or one row buffer. - * - * Frame buffer size: 128 columns x 64 rows / 8 bits-per-pixel - * Row size: 128 columns x 8 rows-per-page / 8 bits-per-pixel - */ - -#define UG2864HSWEG01_FBSIZE (UG2864HSWEG01_XSTRIDE * UG2864HSWEG01_YRES) -#define UG2864HSWEG01_ROWSIZE (UG2864HSWEG01_XSTRIDE) - -/* Bit helpers */ - -#define LS_BIT (1 << 0) -#define MS_BIT (1 << 7) - -/* Debug ******************************************************************************/ - -#ifdef CONFIG_DEBUG_LCD -# define lcddbg(format, arg...) dbg(format, ##arg) -# define lcdvdbg(format, arg...) vdbg(format, ##arg) -#else -# define lcddbg(x...) -# define lcdvdbg(x...) -#endif - -/************************************************************************************** - * Private Type Definition - **************************************************************************************/ - -/* This structure describes the state of this driver */ - -struct ug2864hsweg01_dev_s -{ - struct lcd_dev_s dev; /* Publically visible device structure */ - - /* Private LCD-specific information follows */ - - FAR struct spi_dev_s *spi; /* Cached SPI device reference */ - uint8_t contrast; /* Current contrast setting */ - bool on; /* true: display is on */ - - - /* 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 1KB. - */ - - uint8_t fb[UG2864HSWEG01_FBSIZE]; -}; - -/************************************************************************************** - * Private Function Protototypes - **************************************************************************************/ - -/* Low-level SPI helpers */ - -#ifdef CONFIG_SPI_OWNBUS -static inline void ug2864hsweg01_configspi(FAR struct spi_dev_s *spi); -# define ug2864hsweg01_lock(spi) -# define ug2864hsweg01_unlock(spi) -#else -# define ug2864hsweg01_configspi(spi) -static void ug2864hsweg01_lock(FAR struct spi_dev_s *spi); -static void ug2864hsweg01_unlock(FAR struct spi_dev_s *spi); -#endif - -/* LCD Data Transfer Methods */ - -static int ug2864hsweg01_putrun(fb_coord_t row, fb_coord_t col, - FAR const uint8_t *buffer, size_t npixels); -static int ug2864hsweg01_getrun(fb_coord_t row, fb_coord_t col, FAR uint8_t *buffer, - size_t npixels); - -/* LCD Configuration */ - -static int ug2864hsweg01_getvideoinfo(FAR struct lcd_dev_s *dev, - FAR struct fb_videoinfo_s *vinfo); -static int ug2864hsweg01_getplaneinfo(FAR struct lcd_dev_s *dev, unsigned int planeno, - FAR struct lcd_planeinfo_s *pinfo); - -/* LCD RGB Mapping */ - -#ifdef CONFIG_FB_CMAP -# error "RGB color mapping not supported by this driver" -#endif - -/* Cursor Controls */ - -#ifdef CONFIG_FB_HWCURSOR -# error "Cursor control not supported by this driver" -#endif - -/* LCD Specific Controls */ - -static int ug2864hsweg01_getpower(struct lcd_dev_s *dev); -static int ug2864hsweg01_setpower(struct lcd_dev_s *dev, int power); -static int ug2864hsweg01_getcontrast(struct lcd_dev_s *dev); -static int ug2864hsweg01_setcontrast(struct lcd_dev_s *dev, unsigned int contrast); - -/************************************************************************************** - * Private Data - **************************************************************************************/ - -/* This is working memory allocated by the LCD driver for each LCD device - * and for each color plane. This memory will hold one raster line of data. - * The size of the allocated run buffer must therefore be at least - * (bpp * xres / 8). Actual alignment of the buffer must conform to the - * bitwidth of the underlying pixel type. - * - * If there are multiple planes, they may share the same working buffer - * because different planes will not be operate on concurrently. However, - * if there are multiple LCD devices, they must each have unique run buffers. - */ - -static uint8_t g_runbuffer[UG2864HSWEG01_ROWSIZE]; - -/* This structure describes the overall LCD video controller */ - -static const struct fb_videoinfo_s g_videoinfo = -{ - .fmt = UG2864HSWEG01_COLORFMT, /* Color format: RGB16-565: RRRR RGGG GGGB BBBB */ - .xres = UG2864HSWEG01_XRES, /* Horizontal resolution in pixel columns */ - .yres = UG2864HSWEG01_YRES, /* Vertical resolution in pixel rows */ - .nplanes = 1, /* Number of color planes supported */ -}; - -/* This is the standard, NuttX Plane information object */ - -static const struct lcd_planeinfo_s g_planeinfo = -{ - .putrun = ug2864hsweg01_putrun, /* Put a run into LCD memory */ - .getrun = ug2864hsweg01_getrun, /* Get a run from LCD memory */ - .buffer = (uint8_t*)g_runbuffer, /* Run scratch buffer */ - .bpp = UG2864HSWEG01_BPP, /* Bits-per-pixel */ -}; - -/* This is the OLED driver instance (only a single device is supported for now) */ - -static struct ug2864hsweg01_dev_s g_oleddev = -{ - .dev = - { - /* LCD Configuration */ - - .getvideoinfo = ug2864hsweg01_getvideoinfo, - .getplaneinfo = ug2864hsweg01_getplaneinfo, - - /* LCD RGB Mapping -- Not supported */ - /* Cursor Controls -- Not supported */ - - /* LCD Specific Controls */ - - .getpower = ug2864hsweg01_getpower, - .setpower = ug2864hsweg01_setpower, - .getcontrast = ug2864hsweg01_getcontrast, - .setcontrast = ug2864hsweg01_setcontrast, - }, -}; - -/************************************************************************************** - * Private Functions - **************************************************************************************/ - -/************************************************************************************** - * Name: ug2864hsweg01_configspi - * - * Description: - * Configure the SPI for use with the UG-2864HSWEG01 - * - * Input Parameters: - * spi - Reference to the SPI driver structure - * - * Returned Value: - * None - * - * Assumptions: - * - **************************************************************************************/ - -#ifdef CONFIG_SPI_OWNBUS -static inline void ug2864hsweg01_configspi(FAR struct spi_dev_s *spi) -{ - lcdvdbg("Mode: %d Bits: 8 Frequency: %d\n", - CONFIG_UG2864HSWEG01_SPIMODE, CONFIG_UG2864HSWEG01_FREQUENCY); - - /* Configure SPI for the UG-2864HSWEG01. But only if we own the SPI bus. Otherwise, - * don't bother because it might change. - */ - - SPI_SETMODE(spi, CONFIG_UG2864HSWEG01_SPIMODE); - SPI_SETBITS(spi, 8); - SPI_SETFREQUENCY(spi, CONFIG_UG2864HSWEG01_FREQUENCY); -} -#endif - -/************************************************************************************** - * Name: ug2864hsweg01_lock - * - * Description: - * Select the SPI, locking and re-configuring if necessary - * - * Input Parameters: - * spi - Reference to the SPI driver structure - * - * Returned Value: - * None - * - * Assumptions: - * - **************************************************************************************/ - -#ifndef CONFIG_SPI_OWNBUS -static inline void ug2864hsweg01_lock(FAR struct spi_dev_s *spi) -{ - /* Lock the SPI bus if there are multiple devices competing for the SPI bus. */ - - SPI_LOCK(spi, true); - - /* Now make sure that the SPI bus is configured for the UG-2864HSWEG01 (it - * might have gotten configured for a different device while unlocked) - */ - - SPI_SETMODE(spi, CONFIG_UG2864HSWEG01_SPIMODE); - SPI_SETBITS(spi, 8); - SPI_SETFREQUENCY(spi, CONFIG_UG2864HSWEG01_FREQUENCY); -} -#endif - -/************************************************************************************** - * Name: ug2864hsweg01_unlock - * - * Description: - * De-select the SPI - * - * Input Parameters: - * spi - Reference to the SPI driver structure - * - * Returned Value: - * None - * - * Assumptions: - * - **************************************************************************************/ - -#ifndef CONFIG_SPI_OWNBUS -static inline void ug2864hsweg01_unlock(FAR struct spi_dev_s *spi) -{ - /* De-select UG-2864HSWEG01 chip and relinquish the SPI bus. */ - - SPI_LOCK(spi, false); -} -#endif - -/************************************************************************************** - * Name: ug2864hsweg01_putrun - * - * Description: - * This method can be used to write a partial raster line to the LCD. - * - * Input Parameters: - * 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) - * - **************************************************************************************/ - -#if defined(CONFIG_LCD_LANDSCAPE) || defined(CONFIG_LCD_RLANDSCAPE) -static int ug2864hsweg01_putrun(fb_coord_t row, fb_coord_t col, FAR const uint8_t *buffer, - size_t npixels) -{ - /* Because of this line of code, we will only be able to support a single UG device */ - - FAR struct ug2864hsweg01_dev_s *priv = (FAR struct ug2864hsweg01_dev_s *)&g_oleddev; - FAR uint8_t *fbptr; - FAR uint8_t *ptr; - uint8_t devcol; - uint8_t fbmask; - uint8_t page; - uint8_t usrmask; - int pixlen; - uint8_t i; - - lcdvdbg("row: %d col: %d npixels: %d\n", row, col, npixels); - DEBUGASSERT(buffer); - - /* Clip the run to the display */ - - pixlen = npixels; - if ((unsigned int)col + (unsigned int)pixlen > (unsigned int)UG2864HSWEG01_XRES) - { - pixlen = (int)UG2864HSWEG01_XRES - (int)col; - } - - /* Verify that some portion of the run remains on the display */ - - if (pixlen <= 0 || row > UG2864HSWEG01_YRES) - { - return OK; - } - - /* Perform coordinate conversion for reverse landscape mode */ - -#ifdef CONFIG_LCD_RLANDSCAPE - row = (UG2864HSWEG01_YRES-1) - row; - col = (UG2864HSWEG01_XRES-1) - col; -#endif - - /* Get the page number. The range of 64 lines is divided up into eight - * pages of 8 lines each. - */ - - page = row >> 3; - - /* Update the shadow frame buffer memory. First determine the pixel - * position in the frame buffer memory. Pixels are organized like - * this: - * - * --------+---+---+---+---+-...-+-----+ - * Segment | 0 | 1 | 2 | 3 | ... | 131 | - * --------+---+---+---+---+-...-+-----+ - * D0 | | X | | | | | - * D1 | | X | | | | | - * D2 | | X | | | | | - * D3 | | X | | | | | - * D4 | | X | | | | | - * D5 | | X | | | | | - * D6 | | X | | | | | - * D7 | | X | | | | | - * --------+---+---+---+---+-...-+-----+ - * - * So, in order to draw a white, horizontal line, at row 45. we - * would have to modify all of the bytes in page 45/8 = 5. We - * would have to set bit 45%8 = 5 in every byte in the page. - */ - - fbmask = 1 << (row & 7); - fbptr = &priv->fb[page * UG2864HSWEG01_XRES + col]; -#ifdef CONFIG_LCD_RLANDSCAPE - ptr = fbptr + pixlen - 1; -#else - ptr = fbptr; -#endif -#ifdef CONFIG_NX_PACKEDMSFIRST - usrmask = MS_BIT; -#else - usrmask = LS_BIT; -#endif - - for (i = 0; i < pixlen; i++) - { - /* Set or clear the corresponding bit */ - -#ifdef CONFIG_LCD_RLANDSCAPE - if ((*buffer & usrmask) != 0) - { - *ptr-- |= fbmask; - } - else - { - *ptr-- &= ~fbmask; - } -#else - if ((*buffer & usrmask) != 0) - { - *ptr++ |= fbmask; - } - else - { - *ptr++ &= ~fbmask; - } -#endif - - /* Inc/Decrement to the next source pixel */ - -#ifdef CONFIG_NX_PACKEDMSFIRST - if (usrmask == LS_BIT) - { - buffer++; - usrmask = MS_BIT; - } - else - { - usrmask >>= 1; - } -#else - if (usrmask == MS_BIT) - { - buffer++; - usrmask = LS_BIT; - } - else - { - usrmask <<= 1; - } -#endif - } - - /* Offset the column position to account for smaller horizontal - * display range. - */ - - devcol = col + UG2864HSWEG01_DEV_XOFFSET; - - /* Lock and select device */ - - ug2864hsweg01_lock(priv->spi); - SPI_SELECT(priv->spi, SPIDEV_DISPLAY, true); - - /* Select command transfer */ - - SPI_CMDDATA(priv->spi, SPIDEV_DISPLAY, true); - - /* Set the starting position for the run */ - /* Set the column address to the XOFFSET value */ - - SPI_SEND(priv->spi, SSD1306_SETCOLL(devcol & 0x0f)); - SPI_SEND(priv->spi, SSD1306_SETCOLH(devcol >> 4)); - - /* Set the page address */ - - SPI_SEND(priv->spi, SSD1306_PAGEADDR(page)); - - /* Select data transfer */ - - SPI_CMDDATA(priv->spi, SPIDEV_DISPLAY, false); - - /* Then transfer all of the data */ - - (void)SPI_SNDBLOCK(priv->spi, fbptr, pixlen); - - /* De-select and unlock the device */ - - SPI_SELECT(priv->spi, SPIDEV_DISPLAY, false); - ug2864hsweg01_unlock(priv->spi); - return OK; -} -#else -# error "Configuration not implemented" -#endif - -/************************************************************************************** - * Name: ug2864hsweg01_getrun - * - * Description: - * This method can be used to read a partial raster line from the LCD: - * - * Description: - * This method can be used to write a partial raster line to 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) - * - **************************************************************************************/ - -#if defined(CONFIG_LCD_LANDSCAPE) || defined(CONFIG_LCD_RLANDSCAPE) -static int ug2864hsweg01_getrun(fb_coord_t row, fb_coord_t col, FAR uint8_t *buffer, - size_t npixels) -{ - /* Because of this line of code, we will only be able to support a single UG device */ - - FAR struct ug2864hsweg01_dev_s *priv = &g_oleddev; - FAR uint8_t *fbptr; - uint8_t page; - uint8_t fbmask; - uint8_t usrmask; - int pixlen; - uint8_t i; - - lcdvdbg("row: %d col: %d npixels: %d\n", row, col, npixels); - DEBUGASSERT(buffer); - - /* Clip the run to the display */ - - pixlen = npixels; - if ((unsigned int)col + (unsigned int)pixlen > (unsigned int)UG2864HSWEG01_XRES) - { - pixlen = (int)UG2864HSWEG01_XRES - (int)col; - } - - /* Verify that some portion of the run is actually the display */ - - if (pixlen <= 0 || row > UG2864HSWEG01_YRES) - { - return -EINVAL; - } - - /* Perform coordinate conversion for reverse landscape mode */ - -#ifdef CONFIG_LCD_RLANDSCAPE - row = (UG2864HSWEG01_YRES-1) - row; - col = (UG2864HSWEG01_XRES-1) - col; -#endif - - /* Then transfer the display data from the shadow frame buffer memory */ - /* Get the page number. The range of 64 lines is divided up into eight - * pages of 8 lines each. - */ - - page = row >> 3; - - /* Update the shadow frame buffer memory. First determine the pixel - * position in the frame buffer memory. Pixels are organized like - * this: - * - * --------+---+---+---+---+-...-+-----+ - * Segment | 0 | 1 | 2 | 3 | ... | 131 | - * --------+---+---+---+---+-...-+-----+ - * D0 | | X | | | | | - * D1 | | X | | | | | - * D2 | | X | | | | | - * D3 | | X | | | | | - * D4 | | X | | | | | - * D5 | | X | | | | | - * D6 | | X | | | | | - * D7 | | X | | | | | - * --------+---+---+---+---+-...-+-----+ - * - * So, in order to draw a white, horizontal line, at row 45. we - * would have to modify all of the bytes in page 45/8 = 5. We - * would have to set bit 45%8 = 5 in every byte in the page. - */ - - fbmask = 1 << (row & 7); -#ifdef CONFIG_LCD_RLANDSCAPE - fbptr = &priv->fb[page * (UG2864HSWEG01_XRES-1) + col + pixlen]; -#else - fbptr = &priv->fb[page * UG2864HSWEG01_XRES + col]; -#endif -#ifdef CONFIG_NX_PACKEDMSFIRST - usrmask = MS_BIT; -#else - usrmask = LS_BIT; -#endif - - *buffer = 0; - for (i = 0; i < pixlen; i++) - { - /* Set or clear the corresponding bit */ - -#ifdef CONFIG_LCD_RLANDSCAPE - uint8_t byte = *fbptr--; -#else - uint8_t byte = *fbptr++; -#endif - if ((byte & fbmask) != 0) - { - *buffer |= usrmask; - } - - /* Inc/Decrement to the next destination pixel. Hmmmm. It looks like - * this logic could write past the end of the user buffer. Revisit - * this! - */ - -#ifdef CONFIG_NX_PACKEDMSFIRST - if (usrmask == LS_BIT) - { - buffer++; - *buffer = 0; - usrmask = MS_BIT; - } - else - { - usrmask >>= 1; - } -#else - if (usrmask == MS_BIT) - { - buffer++; - *buffer = 0; - usrmask = LS_BIT; - } - else - { - usrmask <<= 1; - } -#endif - } - - return OK; -} -#else -# error "Configuration not implemented" -#endif - -/************************************************************************************** - * Name: ug2864hsweg01_getvideoinfo - * - * Description: - * Get information about the LCD video controller configuration. - * - **************************************************************************************/ - -static int ug2864hsweg01_getvideoinfo(FAR struct lcd_dev_s *dev, - FAR struct fb_videoinfo_s *vinfo) -{ - DEBUGASSERT(dev && vinfo); - lcdvdbg("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: ug2864hsweg01_getplaneinfo - * - * Description: - * Get information about the configuration of each LCD color plane. - * - **************************************************************************************/ - -static int ug2864hsweg01_getplaneinfo(FAR struct lcd_dev_s *dev, unsigned int planeno, - FAR struct lcd_planeinfo_s *pinfo) -{ - DEBUGASSERT(pinfo && planeno == 0); - lcdvdbg("planeno: %d bpp: %d\n", planeno, g_planeinfo.bpp); - memcpy(pinfo, &g_planeinfo, sizeof(struct lcd_planeinfo_s)); - return OK; -} - -/************************************************************************************** - * Name: ug2864hsweg01_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 ug2864hsweg01_getpower(FAR struct lcd_dev_s *dev) -{ - FAR struct ug2864hsweg01_dev_s *priv = (FAR struct ug2864hsweg01_dev_s *)dev; - DEBUGASSERT(priv); - - lcdvdbg("power: %s\n", priv->on ? "ON" : "OFF"); - return priv->on ? CONFIG_LCD_MAXPOWER : 0; -} - -/************************************************************************************** - * Name: ug2864hsweg01_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 ug2864hsweg01_setpower(struct lcd_dev_s *dev, int power) -{ - struct ug2864hsweg01_dev_s *priv = (struct ug2864hsweg01_dev_s *)dev; - DEBUGASSERT(priv && (unsigned)power <= CONFIG_LCD_MAXPOWER && priv->spi); - - lcdvdbg("power: %d [%d]\n", power, priv->on ? CONFIG_LCD_MAXPOWER : 0); - - /* Lock and select device */ - - ug2864hsweg01_lock(priv->spi); - SPI_SELECT(priv->spi, SPIDEV_DISPLAY, true); - - if (power <= 0) - { - /* Turn the display off */ - - (void)SPI_SEND(priv->spi, SSD1306_DISPOFF); - priv->on = false; - } - else - { - /* Turn the display on */ - - (void)SPI_SEND(priv->spi, SSD1306_DISPON); /* Display on, dim mode */ - priv->on = true; - } - - /* De-select and unlock the device */ - - SPI_SELECT(priv->spi, SPIDEV_DISPLAY, false); - ug2864hsweg01_unlock(priv->spi); - return OK; -} - -/************************************************************************************** - * Name: ug2864hsweg01_getcontrast - * - * Description: - * Get the current contrast setting (0-CONFIG_LCD_MAXCONTRAST). - * - **************************************************************************************/ - -static int ug2864hsweg01_getcontrast(struct lcd_dev_s *dev) -{ - struct ug2864hsweg01_dev_s *priv = (struct ug2864hsweg01_dev_s *)dev; - DEBUGASSERT(priv); - - lcdvdbg("contrast: %d\n", priv->contrast); - return priv->contrast; -} - -/************************************************************************************** - * Name: ug2864hsweg01_setcontrast - * - * Description: - * Set LCD panel contrast (0-CONFIG_LCD_MAXCONTRAST). - * - **************************************************************************************/ - -static int ug2864hsweg01_setcontrast(struct lcd_dev_s *dev, unsigned int contrast) -{ - struct ug2864hsweg01_dev_s *priv = (struct ug2864hsweg01_dev_s *)dev; - unsigned int scaled; - - lcdvdbg("contrast: %d\n", contrast); - DEBUGASSERT(priv); - - /* Verify the contrast value */ - -#ifdef CONFIG_DEBUG - if (contrast > CONFIG_LCD_MAXCONTRAST) - { - return -EINVAL; - } -#endif - - /* Scale contrast: newcontrast = 255 * contrast / CONFIG_LCD_MAXCONTRAST - * Where contrast is in the range {1,255} - */ - -#if CONFIG_LCD_MAXCONTRAST != 255 - scaled = ((contrast << 8) - 1) / CONFIG_LCD_MAXCONTRAST; -#else - scaled = contrast; -#endif - - /* Lock and select device */ - - ug2864hsweg01_lock(priv->spi); - SPI_SELECT(priv->spi, SPIDEV_DISPLAY, true); - - /* Select command transfer */ - - SPI_CMDDATA(priv->spi, SPIDEV_DISPLAY, true); - - /* Set the contrast */ - - (void)SPI_SEND(priv->spi, SSD1306_CONTRAST_MODE); /* Set contrast control register */ - (void)SPI_SEND(priv->spi, SSD1306_CONTRAST(scaled)); /* Data 1: Set 1 of 256 contrast steps */ - priv->contrast = contrast; - - /* De-select and unlock the device */ - - SPI_SELECT(priv->spi, SPIDEV_DISPLAY, false); - ug2864hsweg01_unlock(priv->spi); - return OK; -} - -/************************************************************************************** - * Public Functions - **************************************************************************************/ - -/************************************************************************************** - * Name: ug2864hsweg01_initialize - * - * Description: - * Initialize the UG-2864HSWEG01 video hardware. The initial state of the - * OLED is fully initialized, display memory cleared, and the OLED ready - * to use, but with the power setting at 0 (full off == sleep mode). - * - * Input Parameters: - * - * spi - A reference to the SPI driver instance. - * devno - A value in the range of 0 through CONFIG_UG2864HSWEG01_NINTERFACES-1. - * This allows support for multiple OLED devices. - * - * Returned Value: - * - * On success, this function returns a reference to the LCD object for - * the specified OLED. NULL is returned on any failure. - * - **************************************************************************************/ - -FAR struct lcd_dev_s *ug2864hsweg01_initialize(FAR struct spi_dev_s *spi, unsigned int devno) -{ - FAR struct ug2864hsweg01_dev_s *priv = &g_oleddev; - - lcdvdbg("Initializing\n"); - DEBUGASSERT(spi && devno == 0); - - /* Save the reference to the SPI device */ - - priv->spi = spi; - - /* Configure the SPI */ - - ug2864hsweg01_configspi(spi); - - /* Lock and select device */ - - ug2864hsweg01_lock(priv->spi); - SPI_SELECT(spi, SPIDEV_DISPLAY, true); - - /* Select command transfer */ - - SPI_CMDDATA(spi, SPIDEV_DISPLAY, true); - - /* Configure OLED SPI or I/O, must be delayed 1-10ms */ - - up_mdelay(5); - - /* Configure the device */ - -//#define OLED_WriteCmd(v) SPI_SEND(spi,v) -// -// /* Module manufacturers to provide initialization code 模块厂家提供初始化代码 */ -// -// OLED_WriteCmd(0xAE); /* 关闭OLED面板显示(休眠) */ -// OLED_WriteCmd(0x00); /* 设置列地址低4bit */ -// OLED_WriteCmd(0x10); /* 设置列地址高4bit */ -// OLED_WriteCmd(0x40); /* 设置起始行地址（低5bit 0-63）， 硬件相关*/ -// -// OLED_WriteCmd(0x81); /* 设置对比度命令(双字节命令），第1个字节是命令，第2个字节是对比度参数0-255 */ -// OLED_WriteCmd(0xCF); /* 设置对比度参数 */ -// -// OLED_WriteCmd(0xA1); /* A0 ：列地址0映射到SEG0; A1 ：列地址127映射到SEG0 */ -// OLED_WriteCmd(0xA6); /* A6 : 设置正常显示模式; A7 : 设置为反显模式 */ -// -// OLED_WriteCmd(0xA8); /* 设置COM路数 */ -// OLED_WriteCmd(0x3F); /* 1 ->（63+1）路 */ -// -// OLED_WriteCmd(0xD3); /* 设置显示偏移（双字节命令）*/ -// OLED_WriteCmd(0x00); /* 无偏移 */ -// -// OLED_WriteCmd(0xD5); /* 设置显示时钟分频系数/振荡频率 */ -// OLED_WriteCmd(0x80); /* 设置分频系数,高4bit是分频系数，低4bit是振荡频率 */ -// -// OLED_WriteCmd(0xD9); /* 设置预充电周期 */ -// OLED_WriteCmd(0xF1); /* [3:0],PHASE 1; [7:4],PHASE 2; */ -// -// OLED_WriteCmd(0xDA); /* 设置COM脚硬件接线方式 */ -// OLED_WriteCmd(0x12); -// -// OLED_WriteCmd(0xDB); /* 设置 vcomh 电压倍率 */ -// OLED_WriteCmd(0x40); /* [6:4] 000 = 0.65 x VCC; 0.77 x VCC (RESET); 0.83 x VCC */ -// -// OLED_WriteCmd(0x8D); /* 设置充电泵（和下个命令结合使用） */ -// OLED_WriteCmd(0x14); /* 0x14 使能充电泵， 0x10 是关闭 */ -// OLED_WriteCmd(0xAF); /* 打开OLED面板 */ - - SPI_SEND(spi, SSD1306_DISPOFF); /* Display off 0xAE*/ - SPI_SEND(spi, SSD1306_SETCOLL(0)); /* Set lower column address 0x00 */ - SPI_SEND(spi, SSD1306_SETCOLH(0)); /* Set higher column address 0x10 */ - SPI_SEND(spi, SSD1306_STARTLINE(0)); /* Set display start line 0x40*/ - /* SPI_SEND(spi, SSD1306_PAGEADDR(0));*//* Set page address (Can ignore)*/ - SPI_SEND(spi, SSD1306_CONTRAST_MODE); /* Contrast control 0x81*/ - SPI_SEND(spi ,SSD1306_CONTRAST(UG2864HSWEG01_CONTRAST)); /* Default contrast 0xCF */ - SPI_SEND(spi, SSD1306_REMAPPLEFT); /* Set segment remap left 95 to 0 | 0xA1*/ - /* SPI_SEND(spi, SSD1306_EDISPOFF); */ /* Normal display :off 0xA4 (Can ignore)*/ - SPI_SEND(spi, SSD1306_NORMAL); /* Normal (un-reversed) display mode 0xA6 */ - SPI_SEND(spi, SSD1306_MRATIO_MODE); /* Multiplex ratio 0xA8*/ - SPI_SEND(spi, SSD1306_MRATIO(0x3f)); /* Duty = 1/64 */ - /* SPI_SEND(spi, SSD1306_SCANTOCOM0);*/ /* Com scan direction: Scan from COM[n-1] to COM[0] (Can ignore)*/ - SPI_SEND(spi, SSD1306_DISPOFFS_MODE); /* Set display offset 0xD3 */ - SPI_SEND(spi, SSD1306_DISPOFFS(0)); - SPI_SEND(spi, SSD1306_CLKDIV_SET); /* Set clock divider 0xD5*/ - SPI_SEND(spi, SSD1306_CLKDIV(8,0)); /* 0x80*/ - - SPI_SEND(spi, SSD1306_CHRGPER_SET); /* ++Set pre-charge period 0xD9*/ - SPI_SEND(spi, SSD1306_CHRGPER(0x0f,1)); /* 0xf1 or 0x22（Enhanced mode?） */ - - SPI_SEND(spi, SSD1306_CMNPAD_CONFIG); /* Set common pads / set com pins hardware configuration 0xDA*/ - SPI_SEND(spi, SSD1306_CMNPAD(0x12)); /* 0x12 */ - - SPI_SEND(spi, SSD1306_VCOM_SET); /* set vcomh 0xDB*/ - SPI_SEND(spi, SSD1306_VCOM(0x40)); - - SPI_SEND(spi, SSD1306_CHRPUMP_SET); /* ++Set Charge Pump enable/disable 0x8D ssd1306*/ - SPI_SEND(spi, SSD1306_CHRPUMP_ON); /* 0x14 close 0x10 */ - - /*SPI_SEND(spi, SSD1306_DCDC_MODE); */ /* DC/DC control mode: on (SSD1306 Not supported) */ - /*SPI_SEND(spi, SSD1306_DCDC_ON); */ - - SPI_SEND(spi, SSD1306_DISPON); /* display ON 0xAF */ - - /* De-select and unlock the device */ - - SPI_SELECT(spi, SPIDEV_DISPLAY, false); - ug2864hsweg01_unlock(priv->spi); - - /* Clear the display */ - - up_mdelay(100); - ug2864hsweg01_fill(&priv->dev, UG_Y1_BLACK); - return &priv->dev; -} - -/************************************************************************************** - * Name: ug2864hsweg01_fill - * - * Description: - * This non-standard method can be used to clear the entire display by writing one - * color to the display. This is much faster than writing a series of runs. - * - * Input Parameters: - * priv - Reference to private driver structure - * - * Assumptions: - * Caller has selected the OLED section. - * - **************************************************************************************/ - -void ug2864hsweg01_fill(FAR struct lcd_dev_s *dev, uint8_t color) -{ - FAR struct ug2864hsweg01_dev_s *priv = &g_oleddev; - unsigned int page; - - /* Make an 8-bit version of the selected color */ - - if (color & 1) - { - color = 0xff; - } - else - { - color = 0; - } - - /* Initialize the framebuffer */ - - memset(priv->fb, color, UG2864HSWEG01_FBSIZE); - - /* Lock and select device */ - - ug2864hsweg01_lock(priv->spi); - SPI_SELECT(priv->spi, SPIDEV_DISPLAY, true); - - /* Visit each page */ - - for (page = 0; page < UG2864HSWEG01_DEV_PAGES; page++) - { - /* Select command transfer */ - - SPI_CMDDATA(priv->spi, SPIDEV_DISPLAY, true); - - /* Set the column address to the XOFFSET value */ - - SPI_SEND(priv->spi, SSD1306_SETCOLL(UG2864HSWEG01_DEV_XOFFSET)); - SPI_SEND(priv->spi, SSD1306_SETCOLH(0)); - - /* Set the page address */ - - SPI_SEND(priv->spi, SSD1306_PAGEADDR(page)); - - /* Select data transfer */ - - SPI_CMDDATA(priv->spi, SPIDEV_DISPLAY, false); - - /* Transfer one page of the selected color */ - - (void)SPI_SNDBLOCK(priv->spi, &priv->fb[page * UG2864HSWEG01_XRES], - UG2864HSWEG01_XRES); - } - - /* De-select and unlock the device */ - - SPI_SELECT(priv->spi, SPIDEV_DISPLAY, false); - ug2864hsweg01_unlock(priv->spi); -} - -#endif /* CONFIG_LCD_UG2864HSWEG01 */ |