1433 lines
43 KiB
C
1433 lines
43 KiB
C
/**************************************************************************************
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* drivers/lcd/ra8875.c
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*
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* Driver for the RAiO Technologies RA8875 LCD controller
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*
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* Copyright (C) 2015 Intuitive Aerial AB. All rights reserved.
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* Author: Marten Svanfeldt <marten@intuitiveaerial.com>
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*
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* References: RA8875, Rev 1.6, Apr 2013, RAiO Technologies Inc
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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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/**************************************************************************************
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* Included Files
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**************************************************************************************/
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#include <nuttx/config.h>
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#include <sys/types.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include <string.h>
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#include <errno.h>
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#include <debug.h>
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#include <nuttx/arch.h>
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#include <nuttx/spi/spi.h>
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#include <nuttx/lcd/lcd.h>
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#include <nuttx/lcd/ra8875.h>
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#include "ra8875.h"
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#ifdef CONFIG_LCD_RA8875
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/**************************************************************************************
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* Pre-processor Definitions
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**************************************************************************************/
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/* Configuration **********************************************************************/
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/* Check contrast selection */
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#if !defined(CONFIG_LCD_MAXCONTRAST)
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# define CONFIG_LCD_MAXCONTRAST 1
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#endif
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/* Check power setting */
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#if !defined(CONFIG_LCD_MAXPOWER) || CONFIG_LCD_MAXPOWER < 1
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# define CONFIG_LCD_MAXPOWER 1
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#endif
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#if CONFIG_LCD_MAXPOWER > 255
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# error "CONFIG_LCD_MAXPOWER must be less than 256 to fit in uint8_t"
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#endif
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/* Check orientation */
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#if defined(CONFIG_LCD_PORTRAIT)
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# if defined(CONFIG_LCD_LANDSCAPE) || defined(CONFIG_LCD_RLANDSCAPE) || \
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defined(CONFIG_LCD_RPORTRAIT)
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# error "Cannot define both portrait and any other orientations"
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# endif
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#elif defined(CONFIG_LCD_RPORTRAIT)
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# if defined(CONFIG_LCD_LANDSCAPE) || defined(CONFIG_LCD_RLANDSCAPE)
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# error "Cannot define both rportrait and any other orientations"
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# endif
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#elif defined(CONFIG_LCD_LANDSCAPE)
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# ifdef CONFIG_LCD_RLANDSCAPE
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# error "Cannot define both landscape and any other orientations"
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# endif
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#elif !defined(CONFIG_LCD_RLANDSCAPE)
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# define CONFIG_LCD_LANDSCAPE 1
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#endif
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/* Display/Color Properties ***********************************************************/
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/* Display Resolution */
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#if defined(CONFIG_RA8875_XRES)
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# define RA8875_XRES CONFIG_RA8875_XRES
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#else
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# if defined(CONFIG_LCD_LANDSCAPE) || defined(CONFIG_LCD_RLANDSCAPE)
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# define RA8875_XRES 800
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# else
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# define RA8875_XRES 480
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# endif
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#endif
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#if defined(CONFIG_RA8875_YRES)
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# define RA8875_YRES CONFIG_RA8875_YRES
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#else
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# if defined(CONFIG_LCD_LANDSCAPE) || defined(CONFIG_LCD_RLANDSCAPE)
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# define RA8875_YRES 480
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# else
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# define RA8875_YRES 800
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# endif
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#endif
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#if defined(CONFIG_LCD_LANDSCAPE) || defined(CONFIG_LCD_RLANDSCAPE)
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# define RA8875_HW_XRES RA8875_XRES
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# define RA8875_HW_YRES RA8875_YRES
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#else
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# define RA8875_HW_XRES RA8875_YRES
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# define RA8875_HW_YRES RA8875_XRES
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#endif
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/* Color depth and format */
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#if defined(CONFIG_LCD_RA8875_65K)
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# define RA8875_BPP 16
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# define RA8875_COLORFMT FB_FMT_RGB16_565
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# define RA8875_UNPACK_RED(p) (((p)>>11) & 0x1f)
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# define RA8875_UNPACK_GREEN(p) (((p)>>5) & 0x3f)
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# define RA8875_UNPACK_BLUE(p) ((p) & 0x1f)
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# define RA8875_PACK_RGB(r,g,b) ((r) << 11 | (g) << 5 | (b))
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#else /* LCD_RA8875_256 */
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# define RA8875_BPP 8
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# define RA8875_COLORFMT FB_FMT_RGB8_332
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# define RA8875_UNPACK_RED(p) (((p)>>5) & 0x7)
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# define RA8875_UNPACK_GREEN(p) (((p)>>2) & 0x7)
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# define RA8875_UNPACK_BLUE(p) ((p) & 0x3)
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# define RA8875_PACK_RGB(r,g,b) (((r)&0x7) << 5 | ((g)&0x7) << 2 | ((b)&0x3))
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#endif
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#if RA8875_HW_XRES >= 800 && RA8875_HW_YRES >= 480 && RA8875_BPP > 8
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# undef RA8875_2LAYER_POSSIBLE
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#else
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# define RA8875_2LAYER_POSSIBLE 1
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#endif
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/**************************************************************************************
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* Private Type Definition
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**************************************************************************************/
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/* This structure describes the state of this driver */
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struct ra8875_dev_s
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{
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/* Publicly visible device structure */
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struct lcd_dev_s dev;
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/* Private LCD-specific information follows */
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FAR struct ra8875_lcd_s *lcd; /* The contained platform-specific, LCD interface */
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uint8_t power; /* Current power setting */
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#if defined(RA8875_2LAYER_POSSIBLE)
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uint8_t current_layer; /* Current drawing layer, 0=disabled */
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#endif
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/* Shadow these registers to speed up rendering */
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uint8_t shadow_mwcr0;
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uint16_t shadow_w_curh, shadow_w_curv;
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/* These fields simplify and reduce debug output */
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#ifdef CONFIG_DEBUG_LCD
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bool put; /* Last raster operation was a putrun */
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fb_coord_t firstrow; /* First row of the run */
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fb_coord_t lastrow; /* Last row of the run */
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fb_coord_t col; /* Column of the run */
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size_t npixels; /* Length of the run */
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#endif
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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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uint16_t runbuffer[RA8875_XRES];
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};
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/**************************************************************************************
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* Private Function Prototypes
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**************************************************************************************/
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/* Low Level LCD access */
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static inline void ra8875_putreg(FAR struct ra8875_lcd_s *lcd, uint8_t regaddr,
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uint8_t regval);
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static inline void ra8875_putreg16(FAR struct ra8875_lcd_s *lcd, uint8_t regaddr,
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uint16_t regval);
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#ifndef CONFIG_LCD_NOGETRUN
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static inline uint8_t ra8875_readreg(FAR struct ra8875_lcd_s *lcd, uint8_t regaddr);
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static inline void ra8875_waitreg(FAR struct ra8875_lcd_s *lcd, uint8_t regaddr,
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uint8_t mask);
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#endif
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static void ra8875_set_writecursor(FAR struct ra8875_dev_s *dev, uint16_t column,
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uint16_t row);
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static void ra8875_set_readcursor(FAR struct ra8875_lcd_s *lcd, uint16_t column,
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uint16_t row);
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static void ra8875_set_mwcr0(FAR struct ra8875_dev_s *dev, uint8_t value);
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static void ra8875_setwindow(FAR struct ra8875_lcd_s *lcd, uint16_t x, uint16_t y,
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uint16_t width, uint16_t height);
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static inline void ra8875_setbackground(FAR struct ra8875_lcd_s *lcd, uint16_t color);
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static inline void ra8875_setforeground(FAR struct ra8875_lcd_s *lcd, uint16_t color);
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static void ra8875_clearmem(FAR struct ra8875_lcd_s *lcd);
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/* LCD Data Transfer Methods */
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#if 0 /* Sometimes useful */
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static void ra8875_dumprun(FAR const char *msg, FAR uint16_t *run, size_t npixels);
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#else
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# define ra8875_dumprun(m,r,n)
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#endif
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#ifdef CONFIG_DEBUG_LCD
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static void ra8875_showrun(FAR struct ra8875_dev_s *priv, fb_coord_t row,
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fb_coord_t col, size_t npixels, bool put);
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#else
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# define ra8875_showrun(p,r,c,n,b)
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#endif
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static int ra8875_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 ra8875_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 ra8875_getvideoinfo(FAR struct lcd_dev_s *dev,
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FAR struct fb_videoinfo_s *vinfo);
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static int ra8875_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 ra8875_getpower(FAR struct lcd_dev_s *dev);
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static int ra8875_setpower(FAR struct lcd_dev_s *dev, int power);
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static int ra8875_getcontrast(FAR struct lcd_dev_s *dev);
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static int ra8875_setcontrast(FAR struct lcd_dev_s *dev, unsigned int contrast);
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/* Initialization */
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static inline int ra8875_hwinitialize(FAR struct ra8875_dev_s *priv);
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/**************************************************************************************
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* Private Data
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**************************************************************************************/
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/* This driver can support only a signal RA8875 device. This is due to an
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* unfortunate decision made when the getrun and putrun methods were designed. The
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* following is the single RA8875 driver state instance:
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*/
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static struct ra8875_dev_s g_lcddev;
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/**************************************************************************************
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* Private Functions
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**************************************************************************************/
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/**************************************************************************************
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* Name: ra8875_putreg(lcd,
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*
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* Description:
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* Write to an LCD register
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*
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**************************************************************************************/
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static void ra8875_putreg(FAR struct ra8875_lcd_s *lcd, uint8_t regaddr,
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uint8_t regval)
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{
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/* Set the index register to the register address and write the register contents */
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lcdinfo("putreg 0x%02x = 0x%02x\n", regaddr, regval);
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lcd->write_reg(lcd, regaddr, regval);
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}
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/**************************************************************************************
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* Name: ra8875_putreg16(lcd,
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*
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* Description:
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* Write to an LCD register
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*
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**************************************************************************************/
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static void ra8875_putreg16(FAR struct ra8875_lcd_s *lcd, uint8_t regaddr,
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uint16_t regval)
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{
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/* Set the index register to the register address and write the register contents */
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lcdinfo("putreg 0x%02x = 0x%04x\n", regaddr, regval);
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lcd->write_reg16(lcd, regaddr, regval);
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}
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/**************************************************************************************
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* Name: ra8875_readreg
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*
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* Description:
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* Read from an LCD register
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*
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**************************************************************************************/
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#ifndef CONFIG_LCD_NOGETRUN
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static uint8_t ra8875_readreg(FAR struct ra8875_lcd_s *lcd, uint8_t regaddr)
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{
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uint8_t regval;
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/* Set the index register to the register address and read the register contents */
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regval = lcd->read_reg(lcd, regaddr);
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lcdinfo("readreg 0x%02x = 0x%02x\n", regaddr, regval);
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return regval;
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}
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#endif
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/**************************************************************************************
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* Name: ra8875_waitreg
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*
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* Description:
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* Wait while an LCD register match set mask
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*
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**************************************************************************************/
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#ifndef CONFIG_LCD_NOGETRUN
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static void ra8875_waitreg(FAR struct ra8875_lcd_s *lcd, uint8_t regaddr, uint8_t mask)
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{
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int i = 20000/100;
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while (i-- && ra8875_readreg(lcd, regaddr) & mask)
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{
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up_udelay(100);
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}
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}
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#endif
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/**************************************************************************************
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* Name: ra8875_set_writecursor
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*
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* Description:
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* Set the position to use for the write cursor
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*
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**************************************************************************************/
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static void ra8875_set_writecursor(FAR struct ra8875_dev_s *dev, uint16_t column,
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uint16_t row)
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{
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FAR struct ra8875_lcd_s *lcd = dev->lcd;
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#if defined(CONFIG_LCD_PORTRAIT) || defined(CONFIG_LCD_RPORTRAIT)
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if (dev->shadow_w_curh != row)
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{
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ra8875_putreg16(lcd, RA8875_CURH0, row);
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dev->shadow_w_curh = row;
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}
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if (dev->shadow_w_curv != column)
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{
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ra8875_putreg16(lcd, RA8875_CURV0, column);
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dev->shadow_w_curv = column;
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}
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#elif defined(CONFIG_LCD_LANDSCAPE) || defined(CONFIG_LCD_RLANDSCAPE)
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if (dev->shadow_w_curh != column)
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{
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ra8875_putreg16(lcd, RA8875_CURH0, column);
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dev->shadow_w_curh = column;
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}
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if (dev->shadow_w_curv != row)
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{
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ra8875_putreg16(lcd, RA8875_CURV0, row);
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dev->shadow_w_curv = row;
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}
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#endif
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}
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/**************************************************************************************
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* Name: ra8875_set_readcursor
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*
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* Description:
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* Set the position to use for the read cursor
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*
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**************************************************************************************/
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static void ra8875_set_readcursor(FAR struct ra8875_lcd_s *lcd, uint16_t column,
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uint16_t row)
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{
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#if defined(CONFIG_LCD_PORTRAIT) || defined(CONFIG_LCD_RPORTRAIT)
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ra8875_putreg16(lcd, RA8875_RCURH0, row);
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ra8875_putreg16(lcd, RA8875_RCURV0, column);
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#elif defined(CONFIG_LCD_LANDSCAPE) || defined(CONFIG_LCD_RLANDSCAPE)
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ra8875_putreg16(lcd, RA8875_RCURH0, column);
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ra8875_putreg16(lcd, RA8875_RCURV0, row);
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#endif
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}
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static void ra8875_set_mwcr0(FAR struct ra8875_dev_s *dev, uint8_t value)
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{
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FAR struct ra8875_lcd_s *lcd = dev->lcd;
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if (dev->shadow_mwcr0 != value)
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{
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ra8875_putreg(lcd, RA8875_MWCR0, value);
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dev->shadow_mwcr0 = value;
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}
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}
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/**************************************************************************************
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* Name: ra8875_setwindow
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*
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* Description:
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* Set hardware clipping window
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*
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**************************************************************************************/
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static void ra8875_setwindow(FAR struct ra8875_lcd_s *lcd, uint16_t x, uint16_t y,
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uint16_t width, uint16_t height)
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{
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#if defined(CONFIG_LCD_PORTRAIT) || defined(CONFIG_LCD_RPORTRAIT)
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ra8875_putreg16(lcd, RA8875_HSAW0, y);
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ra8875_putreg16(lcd, RA8875_VSAW0, x);
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ra8875_putreg16(lcd, RA8875_HEAW0, (y+height-1));
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ra8875_putreg16(lcd, RA8875_VEAW0, (x+width-1));
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#elif defined(CONFIG_LCD_LANDSCAPE) || defined(CONFIG_LCD_RLANDSCAPE)
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ra8875_putreg16(lcd, RA8875_HSAW0, x);
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ra8875_putreg16(lcd, RA8875_VSAW0, y);
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ra8875_putreg16(lcd, RA8875_HEAW0, (x+width-1));
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ra8875_putreg16(lcd, RA8875_VEAW0, (y+height-1));
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#endif
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}
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/**************************************************************************************
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* Name: ra8875_setbackground
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*
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* Description:
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* Set the background color to use for the BTE engine
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*
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**************************************************************************************/
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static inline void ra8875_setbackground(FAR struct ra8875_lcd_s *lcd, uint16_t color)
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{
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ra8875_putreg(lcd, RA8875_BGCR0, RA8875_UNPACK_RED(color));
|
|
ra8875_putreg(lcd, RA8875_BGCR1, RA8875_UNPACK_GREEN(color));
|
|
ra8875_putreg(lcd, RA8875_BGCR2, RA8875_UNPACK_BLUE(color));
|
|
}
|
|
|
|
/**************************************************************************************
|
|
* Name: ra8875_setforeground
|
|
*
|
|
* Description:
|
|
* Set the foreground color to use for the BTE engine
|
|
*
|
|
**************************************************************************************/
|
|
|
|
static inline void ra8875_setforeground(FAR struct ra8875_lcd_s *lcd, uint16_t color)
|
|
{
|
|
ra8875_putreg(lcd, RA8875_FGCR0, RA8875_UNPACK_RED(color));
|
|
ra8875_putreg(lcd, RA8875_FGCR1, RA8875_UNPACK_GREEN(color));
|
|
ra8875_putreg(lcd, RA8875_FGCR2, RA8875_UNPACK_BLUE(color));
|
|
}
|
|
|
|
/**************************************************************************************
|
|
* Name: ra8875_clearmem
|
|
*
|
|
* Description:
|
|
*
|
|
*
|
|
**************************************************************************************/
|
|
|
|
static void ra8875_clearmem(FAR struct ra8875_lcd_s *lcd)
|
|
{
|
|
lcdinfo("clearmem start\n");
|
|
ra8875_putreg(lcd, RA8875_MCLR, RA8875_MCLR_CLEAR | RA8875_MCLR_FULL);
|
|
|
|
/* Wait for operation to finish */
|
|
|
|
ra8875_waitreg(lcd, RA8875_MCLR, RA8875_MCLR_CLEAR);
|
|
lcdinfo("clearmem done\n");
|
|
}
|
|
|
|
/**************************************************************************************
|
|
* Name: ra8875_showrun
|
|
*
|
|
* Description:
|
|
* When LCD debug is enabled, try to reduce then amount of output data generated by
|
|
* ra8875_putrun and ra8875_getrun
|
|
*
|
|
**************************************************************************************/
|
|
|
|
#ifdef CONFIG_DEBUG_LCD
|
|
static void ra8875_showrun(FAR struct ra8875_dev_s *priv, fb_coord_t row,
|
|
fb_coord_t col, size_t npixels, bool put)
|
|
{
|
|
fb_coord_t nextrow = priv->lastrow + 1;
|
|
|
|
/* Has anything changed (other than the row is the next row in the sequence)? */
|
|
|
|
if (put == priv->put && row == nextrow && col == priv->col &&
|
|
npixels == priv->npixels)
|
|
{
|
|
/* No, just update the last row */
|
|
|
|
priv->lastrow = nextrow;
|
|
}
|
|
else
|
|
{
|
|
/* Yes... then this is the end of the preceding sequence. Output the last run
|
|
* (if there were more than one run in the sequence).
|
|
*/
|
|
|
|
if (priv->firstrow != priv->lastrow)
|
|
{
|
|
lcdinfo("...\n");
|
|
lcdinfo("%s row: %d col: %d npixels: %d\n",
|
|
priv->put ? "PUT" : "GET",
|
|
priv->lastrow, priv->col, priv->npixels);
|
|
}
|
|
|
|
/* And we are starting a new sequence. Output the first run of the
|
|
* new sequence
|
|
*/
|
|
|
|
lcdinfo("%s row: %d col: %d npixels: %d\n",
|
|
put ? "PUT" : "GET", row, col, npixels);
|
|
|
|
/* And save information about the run so that we can detect continuations
|
|
* of the sequence.
|
|
*/
|
|
|
|
priv->put = put;
|
|
priv->firstrow = row;
|
|
priv->lastrow = row;
|
|
priv->col = col;
|
|
priv->npixels = npixels;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/**************************************************************************************
|
|
* Name: ra8875_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 ra8875_putrun(fb_coord_t row, fb_coord_t col, FAR const uint8_t *buffer,
|
|
size_t npixels)
|
|
{
|
|
FAR struct ra8875_dev_s *priv = &g_lcddev;
|
|
FAR struct ra8875_lcd_s *lcd = priv->lcd;
|
|
int16_t curhinc = 0;
|
|
int16_t curvinc = 0;
|
|
|
|
#if RA8875_BPP == 16
|
|
DEBUGASSERT(buffer && ((uintptr_t)buffer & 1) == 0);
|
|
|
|
FAR const uint16_t *src = (FAR const uint16_t *)buffer;
|
|
#else
|
|
FAR const uint8_t *src = (FAR const uint8_t *)buffer;
|
|
#endif
|
|
int i;
|
|
|
|
/* Buffer must be provided and aligned to a 16-bit address boundary */
|
|
|
|
ra8875_showrun(priv, row, col, npixels, true);
|
|
|
|
#ifdef CONFIG_LCD_LANDSCAPE
|
|
|
|
/* Set the cursor position */
|
|
|
|
ra8875_set_mwcr0(priv, RA8875_MWCR0_MODE_GRAPHICS | RA8875_MWCR0_MEMDIR_LEFTRIGHT |
|
|
RA8875_MWCR0_WINC_ENABLE);
|
|
ra8875_set_writecursor(priv, col, row);
|
|
|
|
curhinc = npixels;
|
|
curvinc = 0;
|
|
|
|
#elif defined(CONFIG_LCD_RLANDSCAPE)
|
|
|
|
/* Retransform coordinates, write right to left */
|
|
|
|
col = (RA8875_XRES-1) - col;
|
|
row = (RA8875_YRES-1) - row;
|
|
|
|
/* Set the cursor position */
|
|
|
|
ra8875_set_mwcr0(priv, RA8875_MWCR0_MODE_GRAPHICS | RA8875_MWCR0_MEMDIR_RIGHTLEFT | RA8875_MWCR0_WINC_ENABLE);
|
|
ra8875_set_writecursor(priv, col, row);
|
|
|
|
curhinc = -npixels;
|
|
curvinc = 0;
|
|
|
|
#elif defined(CONFIG_LCD_PORTRAIT)
|
|
|
|
row = (RA8875_YRES-1) - row;
|
|
|
|
/* Set the cursor position */
|
|
|
|
ra8875_set_mwcr0(priv, RA8875_MWCR0_MODE_GRAPHICS | RA8875_MWCR0_MEMDIR_TOPDOWN |
|
|
RA8875_MWCR0_WINC_ENABLE);
|
|
ra8875_set_writecursor(priv, col, row);
|
|
|
|
curhinc = 0;
|
|
curvinc = npixels;
|
|
|
|
#else /* CONFIG_LCD_RPORTRAIT */
|
|
|
|
col = (RA8875_XRES-1) - col;
|
|
|
|
/* Set the cursor position */
|
|
|
|
ra8875_set_mwcr0(priv, RA8875_MWCR0_MODE_GRAPHICS | RA8875_MWCR0_MEMDIR_DOWNTOP |
|
|
RA8875_MWCR0_WINC_ENABLE);
|
|
ra8875_set_writecursor(priv, col, row);
|
|
|
|
curhinc = 0;
|
|
curvinc = -npixels;
|
|
|
|
#endif
|
|
|
|
/* Write data, handle order automatically */
|
|
|
|
lcd->pwrite_prepare(lcd, RA8875_MRWC);
|
|
|
|
for (i = 0; i < npixels; i++)
|
|
{
|
|
/* Write the next pixel to this position */
|
|
|
|
#if RA8875_BPP == 8
|
|
lcd->pwrite_data8(lcd, *src++);
|
|
#else
|
|
lcd->pwrite_data16(lcd, *src++);
|
|
#endif
|
|
}
|
|
|
|
lcd->pwrite_finish(lcd);
|
|
|
|
/* Update shadowed cursor */
|
|
|
|
priv->shadow_w_curh += curhinc;
|
|
priv->shadow_w_curv += curvinc;
|
|
|
|
return OK;
|
|
}
|
|
|
|
/**************************************************************************************
|
|
* Name: ra8875_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 ra8875_getrun(fb_coord_t row, fb_coord_t col, FAR uint8_t *buffer,
|
|
size_t npixels)
|
|
{
|
|
#ifndef CONFIG_LCD_NOGETRUN
|
|
FAR struct ra8875_dev_s *priv = &g_lcddev;
|
|
FAR struct ra8875_lcd_s *lcd = priv->lcd;
|
|
FAR uint16_t *dest = (FAR uint16_t *)buffer;
|
|
int i;
|
|
|
|
/* Buffer must be provided and aligned to a 16-bit address boundary */
|
|
|
|
ra8875_showrun(priv, row, col, npixels, false);
|
|
DEBUGASSERT(buffer && ((uintptr_t)buffer & 1) == 0);
|
|
|
|
|
|
#ifdef CONFIG_LCD_LANDSCAPE
|
|
/* Set the cursor position */
|
|
|
|
ra8875_putreg(lcd, RA8875_MWCR0, RA8875_MWCR0_MODE_GRAPHICS |
|
|
RA8875_MWCR0_MEMDIR_LEFTRIGHT |
|
|
RA8875_MWCR0_RINC_ENABLE);
|
|
ra8875_putreg(lcd, RA8875_MRDC, RA8875_MRCD_MEMDIR_LEFTRIGHT);
|
|
|
|
ra8875_set_readcursor(lcd, col, row);
|
|
|
|
#elif defined(CONFIG_LCD_RLANDSCAPE)
|
|
/* Retransform coordinates, write right to left */
|
|
|
|
col = (RA8875_XRES-1) - col;
|
|
row = (RA8875_YRES-1) - row;
|
|
|
|
/* Set the cursor position */
|
|
|
|
ra8875_putreg(lcd, RA8875_MWCR0, RA8875_MWCR0_MODE_GRAPHICS |
|
|
RA8875_MWCR0_MEMDIR_RIGHTLEFT |
|
|
RA8875_MWCR0_RINC_ENABLE);
|
|
ra8875_putreg(lcd, RA8875_MRDC, RA8875_MRCD_MEMDIR_RIGHTLEFT);
|
|
|
|
ra8875_set_readcursor(lcd, col, row);
|
|
|
|
#elif defined(CONFIG_LCD_PORTRAIT)
|
|
/* Retransform coordinates, write right to left */
|
|
|
|
row = (RA8875_YRES-1) - row;
|
|
|
|
/* Set the cursor position */
|
|
|
|
ra8875_putreg(lcd, RA8875_MWCR0, RA8875_MWCR0_MODE_GRAPHICS |
|
|
RA8875_MWCR0_MEMDIR_TPDOWN |
|
|
RA8875_MWCR0_RINC_ENABLE);
|
|
ra8875_putreg(lcd, RA8875_MRDC, RA8875_MRCD_MEMDIR_TOPDOWN);
|
|
|
|
ra8875_set_readcursor(lcd, col, row);
|
|
|
|
#else /* CONFIG_LCD_RPORTRAIT */
|
|
/* Retransform coordinates, write right to left */
|
|
|
|
col = (RA8875_XRES-1) - col;
|
|
|
|
/* Set the cursor position */
|
|
|
|
ra8875_putreg(lcd, RA8875_MWCR0, RA8875_MWCR0_MODE_GRAPHICS |
|
|
RA8875_MWCR0_MEMDIR_DOWNTOP |
|
|
RA8875_MWCR0_RINC_ENABLE);
|
|
ra8875_putreg(lcd, RA8875_MRDC, RA8875_MRCD_MEMDIR_DOWNTOP);
|
|
|
|
ra8875_set_readcursor(lcd, col, row);
|
|
|
|
#endif
|
|
|
|
/* Read data, handle order automatically */
|
|
|
|
lcd->pread_prepare(lcd, RA8875_MRWC);
|
|
|
|
for (i = 0; i < npixels; i++)
|
|
{
|
|
/* Read the next pixel from this position */
|
|
|
|
*dest++ = lcd->pread_data16(lcd);
|
|
}
|
|
|
|
lcd->pread_finish(lcd);
|
|
|
|
return OK;
|
|
#else
|
|
return -ENOSYS;
|
|
#endif
|
|
}
|
|
|
|
/**************************************************************************************
|
|
* Name: ra8875_getvideoinfo
|
|
*
|
|
* Description:
|
|
* Get information about the LCD video controller configuration.
|
|
*
|
|
**************************************************************************************/
|
|
|
|
static int ra8875_getvideoinfo(FAR struct lcd_dev_s *dev,
|
|
FAR struct fb_videoinfo_s *vinfo)
|
|
{
|
|
DEBUGASSERT(dev && vinfo);
|
|
lcdinfo("fmt: %d xres: %d yres: %d nplanes: 1\n",
|
|
RA8875_COLORFMT, RA8875_XRES, RA8875_YRES);
|
|
|
|
vinfo->fmt = RA8875_COLORFMT; /* Color format: RGB16-565: RRRR RGGG GGGB BBBB */
|
|
vinfo->xres = RA8875_XRES; /* Horizontal resolution in pixel columns */
|
|
vinfo->yres = RA8875_YRES; /* Vertical resolution in pixel rows */
|
|
vinfo->nplanes = 1; /* Number of color planes supported */
|
|
return OK;
|
|
}
|
|
|
|
/**************************************************************************************
|
|
* Name: ra8875_getplaneinfo
|
|
*
|
|
* Description:
|
|
* Get information about the configuration of each LCD color plane.
|
|
*
|
|
**************************************************************************************/
|
|
|
|
static int ra8875_getplaneinfo(FAR struct lcd_dev_s *dev, unsigned int planeno,
|
|
FAR struct lcd_planeinfo_s *pinfo)
|
|
{
|
|
FAR struct ra8875_dev_s *priv = (FAR struct ra8875_dev_s *)dev;
|
|
|
|
DEBUGASSERT(dev && pinfo && planeno == 0);
|
|
lcdinfo("planeno: %d bpp: %d\n", planeno, RA8875_BPP);
|
|
|
|
pinfo->putrun = ra8875_putrun; /* Put a run into LCD memory */
|
|
pinfo->getrun = ra8875_getrun; /* Get a run from LCD memory */
|
|
pinfo->buffer = (FAR uint8_t *)priv->runbuffer; /* Run scratch buffer */
|
|
pinfo->bpp = RA8875_BPP; /* Bits-per-pixel */
|
|
return OK;
|
|
}
|
|
|
|
/**************************************************************************************
|
|
* Name: ra8875_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 ra8875_getpower(FAR struct lcd_dev_s *dev)
|
|
{
|
|
lcdinfo("power: %d\n", 0);
|
|
return g_lcddev.power;
|
|
}
|
|
|
|
/**************************************************************************************
|
|
* Name: ra8875_poweroff
|
|
*
|
|
* Description:
|
|
* Enable/disable LCD panel power (0: full off - CONFIG_LCD_MAXPOWER: full on). On
|
|
* backlit LCDs, this setting may correspond to the backlight setting.
|
|
*
|
|
**************************************************************************************/
|
|
|
|
static int ra8875_poweroff(FAR struct ra8875_lcd_s *lcd)
|
|
{
|
|
/* Set the backlight off */
|
|
|
|
ra8875_putreg(lcd, RA8875_P1CR, RA8875_P1CR_PWM_DISABLE);
|
|
ra8875_putreg(lcd, RA8875_P1DCR, 0);
|
|
|
|
/* Turn the display off */
|
|
|
|
ra8875_putreg(lcd, RA8875_PWRR, RA8875_PWRR_DISPLAY_OFF);
|
|
|
|
/* Remember the power off state */
|
|
|
|
g_lcddev.power = 0;
|
|
return OK;
|
|
}
|
|
|
|
/**************************************************************************************
|
|
* Name: ra8875_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 ra8875_setpower(FAR struct lcd_dev_s *dev, int power)
|
|
{
|
|
FAR struct ra8875_dev_s *priv = (FAR struct ra8875_dev_s *)dev;
|
|
FAR struct ra8875_lcd_s *lcd = priv->lcd;
|
|
|
|
lcdinfo("power: %d\n", power);
|
|
DEBUGASSERT((unsigned)power <= CONFIG_LCD_MAXPOWER);
|
|
|
|
/* Set new power level */
|
|
|
|
if (power > 0)
|
|
{
|
|
if (g_lcddev.power == 0)
|
|
{
|
|
/* Set the backlight level */
|
|
|
|
ra8875_putreg(lcd, RA8875_P1CR, RA8875_P1CR_PWM_ENABLE);
|
|
ra8875_putreg(lcd, RA8875_P1CR, RA8875_P1CR_PWM_ENABLE | RA8875_P1CR_CSDIV(1));
|
|
}
|
|
|
|
ra8875_putreg(lcd, RA8875_P1DCR, power);
|
|
|
|
/* Turn on display */
|
|
|
|
ra8875_putreg(lcd, RA8875_PWRR, RA8875_PWRR_DISPLAY_ON);
|
|
|
|
g_lcddev.power = power;
|
|
}
|
|
else
|
|
{
|
|
/* Turn the display off */
|
|
|
|
ra8875_poweroff(lcd);
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
/**************************************************************************************
|
|
* Name: ra8875_getcontrast
|
|
*
|
|
* Description:
|
|
* Get the current contrast setting (0-CONFIG_LCD_MAXCONTRAST).
|
|
*
|
|
**************************************************************************************/
|
|
|
|
static int ra8875_getcontrast(FAR struct lcd_dev_s *dev)
|
|
{
|
|
lcdinfo("Not implemented\n");
|
|
return -ENOSYS;
|
|
}
|
|
|
|
/**************************************************************************************
|
|
* Name: ra8875_setcontrast
|
|
*
|
|
* Description:
|
|
* Set LCD panel contrast (0-CONFIG_LCD_MAXCONTRAST).
|
|
*
|
|
**************************************************************************************/
|
|
|
|
static int ra8875_setcontrast(FAR struct lcd_dev_s *dev, unsigned int contrast)
|
|
{
|
|
lcdinfo("contrast: %d\n", contrast);
|
|
return -ENOSYS;
|
|
}
|
|
|
|
/**************************************************************************************
|
|
* Name: ra8875_hwinitialize
|
|
*
|
|
* Description:
|
|
* Initialize the LCD hardware.
|
|
*
|
|
**************************************************************************************/
|
|
|
|
static inline int ra8875_hwinitialize(FAR struct ra8875_dev_s *priv)
|
|
{
|
|
uint8_t rv;
|
|
FAR struct ra8875_lcd_s *lcd = priv->lcd;
|
|
|
|
/* REVISIT: Maybe some of these values needs to be configurable?? */
|
|
|
|
lcdinfo("hwinitialize\n");
|
|
|
|
/* Reset */
|
|
|
|
ra8875_putreg(lcd, RA8875_PWRR, RA8875_PWRR_SWRESET);
|
|
up_mdelay(100);
|
|
ra8875_putreg(lcd, RA8875_PWRR, 0);
|
|
|
|
/* Setup the PLL config */
|
|
|
|
ra8875_putreg(lcd, RA8875_PLLC1, RA8875_PLLC1_PLLDIVN(11));
|
|
up_mdelay(10);
|
|
ra8875_putreg(lcd, RA8875_PLLC2, RA8875_PLLC2_PLLDIVK(2));
|
|
up_mdelay(10);
|
|
|
|
/* Interface and color depth */
|
|
|
|
#if RA8875_BPP == 16
|
|
rv = RA8875_SYSR_COLOR_65K;
|
|
#else
|
|
rv = RA8875_SYSR_COLOR_256;
|
|
#endif
|
|
#if defined(CONFIG_LCD_RA8875_8BIT)
|
|
rv |= RA8875_SYSR_MCUIF_8BIT;
|
|
#elif defined(CONFIG_LCD_RA8875_16BIT)
|
|
rv |= RA8875_SYSR_MCUIF_16BIT;
|
|
#endif
|
|
ra8875_putreg(lcd, RA8875_SYSR, rv);
|
|
|
|
/* Pixel clock, invert + 4*SYS */
|
|
|
|
ra8875_putreg(lcd, RA8875_PCSR, RA8875_PCSR_PCLK_INV | RA8875_PCSR_PERIOD_4SYS);
|
|
up_mdelay(1);
|
|
|
|
/* Horizontal Settings */
|
|
|
|
ra8875_putreg(lcd, RA8875_HDWR, RA8875_HDWR_WIDTH(RA8875_HW_XRES));
|
|
ra8875_putreg(lcd, RA8875_HNDFTR, 0x02);
|
|
ra8875_putreg(lcd, RA8875_HNDR, 0x03);
|
|
ra8875_putreg(lcd, RA8875_HSTR, 0x01);
|
|
ra8875_putreg(lcd, RA8875_HPWR, 0x03);
|
|
|
|
/* Vertical Settings */
|
|
|
|
ra8875_putreg(lcd, RA8875_VDHR0, RA8875_VDHR0_HEIGHT(RA8875_HW_YRES));
|
|
ra8875_putreg(lcd, RA8875_VDHR1, RA8875_VDHR1_HEIGHT(RA8875_HW_YRES));
|
|
ra8875_putreg(lcd, RA8875_VNDR0, 0x0f);
|
|
ra8875_putreg(lcd, RA8875_VNDR1, 0x00);
|
|
ra8875_putreg(lcd, RA8875_VSTR0, 0x0e);
|
|
ra8875_putreg(lcd, RA8875_VSTR1, 0x06);
|
|
ra8875_putreg(lcd, RA8875_VPWR, 0x01);
|
|
|
|
#if !defined(RA8875_2LAYER_POSSIBLE)
|
|
/* Too high, only one layer possible */
|
|
|
|
ra8875_putreg(lcd, RA8875_DPCR, RA8875_DPCR_LAYERS_ONE);
|
|
#else
|
|
/* Two layers */
|
|
|
|
ra8875_putreg(lcd, RA8875_DPCR, RA8875_DPCR_LAYERS_TWO);
|
|
#endif
|
|
|
|
/* Setup window to be full screen */
|
|
|
|
ra8875_setwindow(lcd, 0, 0, RA8875_XRES, RA8875_YRES);
|
|
|
|
/* Set background and foreground colors to black and white (respectively) */
|
|
|
|
ra8875_setbackground(lcd, 0x0000);
|
|
ra8875_setforeground(lcd, 0xffff);
|
|
|
|
/* Clear the memory */
|
|
|
|
ra8875_clearmem(lcd);
|
|
|
|
ra8875_setpower(&priv->dev, 0x0);
|
|
|
|
/* Initialize the shadow registers */
|
|
|
|
priv->shadow_mwcr0 = 0;
|
|
priv->shadow_w_curh = 0;
|
|
priv->shadow_w_curv = 0;
|
|
|
|
lcdinfo("hwinitialize done\n");
|
|
return OK;
|
|
}
|
|
|
|
/**************************************************************************************
|
|
* Public Functions
|
|
**************************************************************************************/
|
|
|
|
/**************************************************************************************
|
|
* Name: ra8875_lcdinitialize
|
|
*
|
|
* Description:
|
|
* Initialize the LCD video hardware. The initial state of the LCD is fully
|
|
* initialized, display memory cleared, and the LCD ready to use, but with the power
|
|
* setting at 0 (full off).
|
|
*
|
|
**************************************************************************************/
|
|
|
|
FAR struct lcd_dev_s *ra8875_lcdinitialize(FAR struct ra8875_lcd_s *lcd)
|
|
{
|
|
int ret;
|
|
|
|
lcdinfo("Initializing\n");
|
|
|
|
/* If we could support multiple RA8875 devices, this is where we would allocate
|
|
* a new driver data structure... but we can't. Why not? Because of a bad should
|
|
* the form of the getrun() and putrun methods.
|
|
*/
|
|
|
|
FAR struct ra8875_dev_s *priv = &g_lcddev;
|
|
|
|
/* Initialize the driver data structure */
|
|
|
|
priv->dev.getvideoinfo = ra8875_getvideoinfo;
|
|
priv->dev.getplaneinfo = ra8875_getplaneinfo;
|
|
priv->dev.getpower = ra8875_getpower;
|
|
priv->dev.setpower = ra8875_setpower;
|
|
priv->dev.getcontrast = ra8875_getcontrast;
|
|
priv->dev.setcontrast = ra8875_setcontrast;
|
|
priv->lcd = lcd;
|
|
|
|
/* Configure and enable LCD */
|
|
|
|
ret = ra8875_hwinitialize(priv);
|
|
if (ret == OK)
|
|
{
|
|
/* Clear the display (setting it to the color 0=black) */
|
|
|
|
ra8875_clear(&priv->dev, 0);
|
|
|
|
/* Turn the display off */
|
|
|
|
ra8875_poweroff(lcd);
|
|
|
|
lcdinfo("Initialized\n");
|
|
|
|
return &g_lcddev.dev;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/**************************************************************************************
|
|
* Name: ra8875_clear
|
|
*
|
|
* Description:
|
|
* This is a non-standard LCD interface just for the RA8875. Because
|
|
* of the various rotations, clearing the display in the normal way by writing a
|
|
* sequences of runs that covers the entire display can be very slow. Here the
|
|
* display is cleared by simply setting all video memory to the specified color.
|
|
*
|
|
* NOTE: This function is not available to applications in the protected or kernel
|
|
* build modes.
|
|
*
|
|
**************************************************************************************/
|
|
|
|
void ra8875_clear(FAR struct lcd_dev_s *dev, uint16_t color)
|
|
{
|
|
#if 0
|
|
FAR struct ra8875_dev_s *priv = (FAR struct ra8875_dev_s *)dev;
|
|
FAR struct ra8875_lcd_s *lcd = priv->lcd;
|
|
|
|
/* Set the color to use for filling */
|
|
|
|
ra8875_setforeground(lcd, color);
|
|
|
|
/* Draw a rectangle over entire screen */
|
|
|
|
ra8875_putreg16(lcd, RA8875_DLHSR0, 0);
|
|
ra8875_putreg16(lcd, RA8875_DLVSR0, 0);
|
|
ra8875_putreg16(lcd, RA8875_DLHER0, RA8875_XRES);
|
|
ra8875_putreg16(lcd, RA8875_DLVER0, RA8875_YRES);
|
|
|
|
ra8875_putreg(lcd, RA8875_DCR, RA8875_DCR_FILL | RA8875_DCR_SQUARE);
|
|
ra8875_putreg(lcd, RA8875_DCR, RA8875_DCR_FILL | RA8875_DCR_SQUARE |
|
|
RA8875_DCR_LINE_START);
|
|
|
|
ra8875_waitreg(lcd, RA8875_DCR, RA8875_DCR_LINE_START);
|
|
#endif
|
|
|
|
/* Draw a rectangle over entire screen */
|
|
|
|
ra8875_drawrectangle(dev, 0, 0, RA8875_XRES, RA8875_YRES, color, true);
|
|
}
|
|
|
|
/**************************************************************************************
|
|
* Name: ra8875_drawrectangle
|
|
*
|
|
* This is a non-standard function to draw a rectangle on the LCD. This function is
|
|
* also used internally as part of the ra8875_clear implementation
|
|
*
|
|
* NOTE: This non-standard function is not available to applications in the
|
|
* protected or kernel build modes.
|
|
*
|
|
**************************************************************************************/
|
|
|
|
void ra8875_drawrectangle(FAR struct lcd_dev_s *dev, uint16_t x, uint16_t y,
|
|
uint16_t width, uint16_t height, uint16_t color, bool fill)
|
|
{
|
|
FAR struct ra8875_dev_s *priv = (FAR struct ra8875_dev_s *)dev;
|
|
FAR struct ra8875_lcd_s *lcd = priv->lcd;
|
|
|
|
uint8_t draw_cmd = RA8875_DCR_SQUARE;
|
|
uint16_t sx, sy, ex, ey;
|
|
|
|
/* Set the color to use for filling */
|
|
|
|
ra8875_setforeground(lcd, color);
|
|
|
|
/* Handle degenerate cases */
|
|
|
|
if (width == 1)
|
|
{
|
|
ra8875_drawline(dev, x, y, x, y+height, color);
|
|
}
|
|
else if (height == 1)
|
|
{
|
|
ra8875_drawline(dev, x, y, x+width, y, color);
|
|
}
|
|
|
|
if (fill)
|
|
{
|
|
draw_cmd |= RA8875_DCR_FILL;
|
|
}
|
|
|
|
/* Setup coordinates */
|
|
|
|
#ifdef CONFIG_LCD_LANDSCAPE
|
|
|
|
sx = x;
|
|
sy = y;
|
|
ex = x + width - 1;
|
|
ey = y + height - 1;
|
|
|
|
#elif defined(CONFIG_LCD_RLANDSCAPE)
|
|
|
|
sx = (RA8875_XRES - 1) - x - width + 1;
|
|
sy = (RA8875_YRES - 1) - y - height + 1;
|
|
ex = (RA8875_XRES - 1) - x;
|
|
ey = (RA8875_YRES - 1) - y;
|
|
|
|
#elif defined(CONFIG_LCD_PORTRAIT)
|
|
|
|
sx = (RA8875_YRES - 1) - y - height + 1;
|
|
sy = x;
|
|
ex = (RA8875_YRES - 1) - y;
|
|
ey = x + width - 1;
|
|
|
|
#else /* CONFIG_LCD_RPORTRAIT */
|
|
|
|
sx = y;
|
|
sy = (RA8875_XRES - 1) - x - width + 1;
|
|
ex = y + height - 1;
|
|
ey = (RA8875_XRES - 1) - x;
|
|
|
|
#endif
|
|
|
|
ra8875_putreg16(lcd, RA8875_DLHSR0, sx);
|
|
ra8875_putreg16(lcd, RA8875_DLVSR0, sy);
|
|
ra8875_putreg16(lcd, RA8875_DLHER0, ex);
|
|
ra8875_putreg16(lcd, RA8875_DLVER0, ey);
|
|
|
|
/* Run drawing */
|
|
|
|
ra8875_putreg(lcd, RA8875_DCR, draw_cmd);
|
|
ra8875_putreg(lcd, RA8875_DCR, draw_cmd | RA8875_DCR_LINE_START);
|
|
|
|
ra8875_waitreg(lcd, RA8875_DCR, RA8875_DCR_LINE_START);
|
|
}
|
|
|
|
/**************************************************************************************
|
|
* Name: ra8875_drawline
|
|
*
|
|
* Description:
|
|
* This is a non-standard function to draw a line on the LCD. This function is
|
|
* also used internally as part of the ra8875_rectandle implementation.
|
|
*
|
|
* NOTE: This non-standard function is not available to applications in the
|
|
* protected or kernel build modes.
|
|
*
|
|
**************************************************************************************/
|
|
|
|
void ra8875_drawline(FAR struct lcd_dev_s *dev, uint16_t x1, uint16_t y1, uint16_t x2,
|
|
uint16_t y2, uint16_t color)
|
|
{
|
|
FAR struct ra8875_dev_s *priv = (FAR struct ra8875_dev_s *)dev;
|
|
FAR struct ra8875_lcd_s *lcd = priv->lcd;
|
|
|
|
uint8_t draw_cmd = RA8875_DCR_LINE;
|
|
uint16_t sx, sy, ex, ey;
|
|
|
|
/* Set the color to use for filling */
|
|
|
|
ra8875_setforeground(lcd, color);
|
|
|
|
/* Handle degenerate cases */
|
|
/* Setup coordinates */
|
|
|
|
#if defined(CONFIG_LCD_LANDSCAPE) || defined(CONFIG_LCD_RLANDSCAPE)
|
|
|
|
sx = x1;
|
|
sy = y1;
|
|
ex = x2;
|
|
ey = y2;
|
|
|
|
#else /* CONFIG_LCD_PORTRAIT or CONFIG_LCD_RPORTRAIT */
|
|
|
|
sx = y1;
|
|
sy = x1;
|
|
ex = y2;
|
|
ey = x2;
|
|
|
|
#endif
|
|
|
|
ra8875_putreg16(lcd, RA8875_DLHSR0, sx);
|
|
ra8875_putreg16(lcd, RA8875_DLVSR0, sy);
|
|
ra8875_putreg16(lcd, RA8875_DLHER0, ex);
|
|
ra8875_putreg16(lcd, RA8875_DLVER0, ey);
|
|
|
|
/* Run drawing */
|
|
|
|
ra8875_putreg(lcd, RA8875_DCR, draw_cmd);
|
|
ra8875_putreg(lcd, RA8875_DCR, draw_cmd | RA8875_DCR_LINE_START);
|
|
|
|
ra8875_waitreg(lcd, RA8875_DCR, RA8875_DCR_LINE_START);
|
|
}
|
|
|
|
/**************************************************************************************
|
|
* Name: ra8875_drawtriangle
|
|
*
|
|
* Description:
|
|
* This is a non-standard function to draw a triangle on the LCD. This function is
|
|
* also used internally as part of the ra8875_rectandle implementation.
|
|
*
|
|
* NOTE: This non-standard function is not available to applications in the
|
|
* protected or kernel build modes.
|
|
*
|
|
**************************************************************************************/
|
|
|
|
#ifdef CONFIG_LCD_RA8875_EXTENDED
|
|
void ra8875_drawtriangle(FAR struct lcd_dev_s *dev, uint16_t x0, uint16_t y0, uint16_t x1,
|
|
uint16_t y1, uint16_t x2, uint16_t y2, uint16_t color, bool fill)
|
|
{
|
|
FAR struct ra8875_dev_s *priv = (FAR struct ra8875_dev_s *)dev;
|
|
FAR struct ra8875_lcd_s *lcd = priv->lcd;
|
|
|
|
uint8_t draw_cmd = RA8875_DCR_TRIANGLE;
|
|
uint16_t _x0, _x1, _x2;
|
|
uint16_t _y0, _y1, _y2;
|
|
|
|
/* Set the color to use for filling */
|
|
|
|
ra8875_setforeground(lcd, color);
|
|
|
|
if (fill)
|
|
{
|
|
draw_cmd |= RA8875_DCR_FILL;
|
|
}
|
|
|
|
/* Setup coordinates */
|
|
|
|
#if defined(CONFIG_LCD_LANDSCAPE) || defined(CONFIG_LCD_RLANDSCAPE)
|
|
|
|
_x0 = x0;
|
|
_x1 = x1;
|
|
_x2 = x2;
|
|
|
|
_y0 = y0;
|
|
_y1 = y1;
|
|
_y2 = y2;
|
|
|
|
#else /* CONFIG_LCD_PORTRAIT or CONFIG_LCD_RPORTRAIT */
|
|
|
|
_x0 = y0;
|
|
_x1 = y1;
|
|
_x2 = y2;
|
|
|
|
_y0 = x0;
|
|
_y1 = x1;
|
|
_y2 = x2;
|
|
|
|
#endif
|
|
|
|
ra8875_putreg16(lcd, RA8875_DLHSR0, _x0);
|
|
ra8875_putreg16(lcd, RA8875_DLVSR0, _y0);
|
|
ra8875_putreg16(lcd, RA8875_DLHER0, _x1);
|
|
ra8875_putreg16(lcd, RA8875_DLVER0, _y1);
|
|
ra8875_putreg16(lcd, RA8875_DTPH0, _x2);
|
|
ra8875_putreg16(lcd, RA8875_DTPV0, _y2);
|
|
|
|
/* Run drawing */
|
|
|
|
ra8875_putreg(lcd, RA8875_DCR, draw_cmd);
|
|
ra8875_putreg(lcd, RA8875_DCR, draw_cmd | RA8875_DCR_LINE_START);
|
|
|
|
ra8875_waitreg(lcd, RA8875_DCR, RA8875_DCR_LINE_START);
|
|
}
|
|
#endif
|
|
|
|
/**************************************************************************************
|
|
* Name: ra8875_drawcircle
|
|
*
|
|
* Description:
|
|
* This is a non-standard function to draw a circle on the LCD. This function is
|
|
* also used internally as part of the ra8875_rectandle implementation.
|
|
*
|
|
* NOTE: This non-standard function is not available to applications in the
|
|
* protected or kernel build modes.
|
|
*
|
|
**************************************************************************************/
|
|
|
|
#ifdef CONFIG_LCD_RA8875_EXTENDED
|
|
void ra8875_drawcircle(FAR struct lcd_dev_s *dev, uint16_t x, uint16_t y, uint8_t radius,
|
|
uint16_t color, bool fill)
|
|
{
|
|
FAR struct ra8875_dev_s *priv = (FAR struct ra8875_dev_s *)dev;
|
|
FAR struct ra8875_lcd_s *lcd = priv->lcd;
|
|
|
|
uint8_t draw_cmd = 0;
|
|
uint16_t _x, _y;
|
|
|
|
/* Set the color to use for filling */
|
|
|
|
ra8875_setforeground(lcd, color);
|
|
|
|
if (fill)
|
|
{
|
|
draw_cmd |= RA8875_DCR_FILL;
|
|
}
|
|
|
|
/* Setup coordinates */
|
|
|
|
#if defined(CONFIG_LCD_LANDSCAPE) || defined(CONFIG_LCD_RLANDSCAPE)
|
|
|
|
_x = x;
|
|
_y = y;
|
|
|
|
#else /* CONFIG_LCD_PORTRAIT or CONFIG_LCD_RPORTRAIT */
|
|
|
|
_x = y;
|
|
_y = x;
|
|
|
|
#endif
|
|
|
|
ra8875_putreg16(lcd, RA8875_DCHR0, _x);
|
|
ra8875_putreg16(lcd, RA8875_DCVR0, _y);
|
|
ra8875_putreg(lcd, RA8875_DCRR, radius);
|
|
|
|
/* Run drawing */
|
|
|
|
ra8875_putreg(lcd, RA8875_DCR, draw_cmd);
|
|
ra8875_putreg(lcd, RA8875_DCR, draw_cmd | RA8875_DCR_CIRCLE_START);
|
|
|
|
ra8875_waitreg(lcd, RA8875_DCR, RA8875_DCR_CIRCLE_START);
|
|
}
|
|
#endif
|
|
|
|
#endif /* CONFIG_LCD_RA8875 */
|