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ugfx/halext/drivers/gdispNokia6610/gdisp_lld.c

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/*
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
2011,2012 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
ChibiOS/RT is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
ChibiOS/RT is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
---
A special exception to the GPL can be applied should you wish to distribute
a combined work that includes ChibiOS/RT, without being obliged to provide
the source code for any proprietary components. See the file exception.txt
for full details of how and when the exception can be applied.
*/
/*
Concepts and parts of this file have been contributed by:
Joel Bodenmann aka Tectu -> Maintainer
Andrew Hannam aka inmarket -> framework
Badger -> console implementation and FSMC
Abhishek -> font rendering
Ben William -> fastMath and lcdDrawEllipse()
Dongxu Li aka dxli -> lcdDrawEllipse() filled option
*/
/**
* @file gdispNokia6610/gdisp_lld.c
* @brief GDISP Graphics Driver subsystem low level driver source for the Nokia6610 display.
*
* @addtogroup GDISP
* @{
*/
#include "ch.h"
#include "hal.h"
#include "gdisp.h"
#if HAL_USE_GDISP || defined(__DOXYGEN__)
/*===========================================================================*/
/* Driver local definitions. */
/*===========================================================================*/
#ifdef UNUSED
#elif defined(__GNUC__)
# define UNUSED(x) UNUSED_ ## x __attribute__((unused))
#elif defined(__LCLINT__)
# define UNUSED(x) /*@unused@*/ x
#else
# define UNUSED(x) x
#endif
/* Controller definitions */
#if defined(LCD_USE_GE8)
#include "GE8.h"
#elif defined(LCD_USE_GE12)
#include "GE12.h"
#else
#error "gdispNokia6610: Either LCD_USE_GE8 or LCD_USE_GE12 must be defined depending on your controller"
#endif
// mask definitions
#define BIT0 0x00000001
#define BIT1 0x00000002
#define BIT2 0x00000004
#define BIT3 0x00000008
#define BIT4 0x00000010
#define BIT5 0x00000020
#define BIT6 0x00000040
#define BIT7 0x00000080
#define BIT8 0x00000100
#define BIT9 0x00000200
#define BIT10 0x00000400
#define BIT11 0x00000800
#define BIT12 0x00001000
#define BIT13 0x00002000
#define BIT14 0x00004000
#define BIT15 0x00008000
#define BIT16 0x00010000
#define BIT17 0x00020000
#define BIT18 0x00040000
#define BIT19 0x00080000
#define BIT20 0x00100000
#define BIT21 0x00200000
#define BIT22 0x00400000
#define BIT23 0x00800000
#define BIT24 0x01000000
#define BIT25 0x02000000
#define BIT26 0x04000000
#define BIT27 0x08000000
#define BIT28 0x10000000
#define BIT29 0x20000000
#define BIT30 0x40000000
#define BIT31 0x80000000
/*===========================================================================*/
/* Driver exported variables. */
/*===========================================================================*/
#if !defined(__DOXYGEN__)
GDISPDriver GDISP;
#endif
/*===========================================================================*/
/* Driver local variables. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver local functions. */
/*===========================================================================*/
#include "gdisp_fonts.h"
#if defined(BOARD_OLIMEX_SAM7_EX256)
#include "gdisp_lld_board_olimexsam7ex256.h"
#else
/* Include the user supplied board definitions */
#include "gdisp_lld_board.h"
#endif
#define gdisp_lld_write_command(cmd) gdisp_lld_write_spi((cmd) & ~0x0100)
#define gdisp_lld_write_data(data) gdisp_lld_write_spi((data) | 0x0100)
static __inline void gdisp_lld_setviewport(coord_t x, coord_t y, coord_t cx, coord_t cy) {
gdisp_lld_write_command(CASET); // Column address set
gdisp_lld_write_data(x);
gdisp_lld_write_data(x+cx-1);
gdisp_lld_write_command(PASET); // Page address set
gdisp_lld_write_data(y);
gdisp_lld_write_data(y+cy-1);
}
void Delay (unsigned long a) {
chThdSleepMilliseconds(a/100);
// volatile unsigned long d;
// for(d=a; d; d--);
}
/*===========================================================================*/
/* Driver interrupt handlers. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver exported functions. */
/*===========================================================================*/
/* Include the software emulation routines */
#include "gdisp_lld_inc_emulation.c.h"
/* ---- Required Routines ---- */
/*
The following 2 routines are required.
All other routines are optional.
*/
/**
* @brief Low level GDISP driver initialization.
*
* @notapi
*/
void gdisp_lld_init(void) {
/* Initialise your display */
gdisp_lld_init_board();
// Hardware reset
gdisp_lld_setpin_reset(TRUE);
Delay(20000);
gdisp_lld_setpin_reset(FALSE);
Delay(20000);
#if defined(LCD_USE_GE8)
#if 1
gdisp_lld_write_command(DISCTL); // Display control
gdisp_lld_write_data(0x00); // P1: 0x00 = 2 divisions, switching period=8 (default)
gdisp_lld_write_data(0x20); // P2: 0x20 = nlines/4 - 1 = 132/4 - 1 = 32)
gdisp_lld_write_data(0x00); // P3: 0x00 = no inversely highlighted lines
gdisp_lld_write_command(COMSCN); // COM scan
gdisp_lld_write_data(1); // P1: 0x01 = Scan 1->80, 160<-81
gdisp_lld_write_command(OSCON); // Internal oscilator ON
gdisp_lld_write_command(SLPOUT); // Sleep out
gdisp_lld_write_command(PWRCTR); // Power control
gdisp_lld_write_data(0x0f); // reference voltage regulator on, circuit voltage follower on, BOOST ON
// Interesting - all the code seems to say this should be done. But my display doesn't want it!
//gdisp_lld_write_command(DISINV); // Inverse display
gdisp_lld_write_command(DATCTL); // Data control
gdisp_lld_write_data(0x01); // P1: 0x01 = page address inverted, column address normal, address scan in column direction
gdisp_lld_write_data(0x00); // P2: 0x00 = RGB sequence (default value)
gdisp_lld_write_data(0x02); // P3: 0x02 = Grayscale -> 16 (selects 12-bit color, type A)
gdisp_lld_write_command(VOLCTR); // Voltage control (contrast setting)
gdisp_lld_write_data(32); // P1 = 32 volume value (experiment with this value to get the best contrast)
gdisp_lld_write_data(3); // P2 = 3 resistance ratio (only value that works)
Delay(100000); // allow power supply to stabilize
gdisp_lld_write_command(DISON); // Turn on the display
#else
// Alternative
gdisp_lld_write_command(DISCTL); // Display control
gdisp_lld_write_data(0x00); // default
gdisp_lld_write_data(0x20); // (32 + 1) * 4 = 132 lines (of which 130 are visible)
gdisp_lld_write_data(0x0a); // default
gdisp_lld_write_command(COMSCN); // COM scan
gdisp_lld_write_data(0x00); // Scan 1-80
gdisp_lld_write_command(OSCON); // Internal oscilator ON
Delay(10000); // wait aproximetly 100ms
gdisp_lld_write_command(SLPOUT); // Sleep out
gdisp_lld_write_command(VOLCTR); // Voltage control
gdisp_lld_write_data(0x1F); // middle value of V1
gdisp_lld_write_data(0x03); // middle value of resistance value
gdisp_lld_write_command(TMPGRD); // Temperature gradient
gdisp_lld_write_data(0x00); // default
gdisp_lld_write_command(PWRCTR); // Power control
gdisp_lld_write_data(0x0f); // referance voltage regulator on, circuit voltage follower on, BOOST ON
gdisp_lld_write_command(DISNOR); // Normal display
gdisp_lld_write_command(DISINV); // Inverse display
gdisp_lld_write_command(PTLOUT); // Partial area off
// gdisp_lld_write_command(ASCSET); // Scroll area set
// gdisp_lld_write_data(0);
// gdisp_lld_write_data(0);
// gdisp_lld_write_data(40);
// gdisp_lld_write_data(3);
// gdisp_lld_write_command(SCSTART); // Vertical scrool address start
// gdisp_lld_write_data(0);
gdisp_lld_write_command(DATCTL); // Data control
gdisp_lld_write_data(0x00); // all inversions off, column direction
gdisp_lld_write_data(0x03); // RGB sequence
gdisp_lld_write_data(0x02); // Grayscale -> 16
gdisp_lld_write_command(PASET); // Page Address set
gdisp_lld_write_data(0);
gdisp_lld_write_data(131);
gdisp_lld_write_command(CASET); // Page Column set
gdisp_lld_write_data(0);
gdisp_lld_write_data(131);
gdisp_lld_write_command(DISON); // Turn on the display
#endif
#elif defined(LCD_USE_GE12)
#if 1
gdisp_lld_write_command(SLEEPOUT); // Sleep out
gdisp_lld_write_command(INVON); // Inversion on: seems to be required for this controller
gdisp_lld_write_command(COLMOD); // Color Interface Pixel Format
gdisp_lld_write_data(0x03); // 0x03 = 12 bits-per-pixel
gdisp_lld_write_command(MADCTL); // Memory access controler
gdisp_lld_write_data(0xC8); // 0xC0 = mirror x and y, reverse rgb
gdisp_lld_write_command(SETCON); // Write contrast
gdisp_lld_write_data(0x30); // contrast - experiental value
Delay(2000);
gdisp_lld_write_command(DISPON); // Display On
#else
// Alternative
// Hardware reset commented out
gdisp_lld_write_command(SOFTRST); // Software Reset
Delay(2000);
gdisp_lld_write_command(INITESC); // Initial escape
Delay(2000);
gdisp_lld_write_command(REFSET); // Refresh set
gdisp_lld_write_data(0);
gdisp_lld_write_command(DISPCTRL); // Set Display control
gdisp_lld_write_data(128); // Set the lenght of one selection term
gdisp_lld_write_data(128); // Set N inversion -> no N inversion
gdisp_lld_write_data(134); // Set frame frequence and bias rate -> 2 devision of frequency and 1/8 bias, 1/67 duty, 96x67 size
gdisp_lld_write_data(84); // Set duty parameter
gdisp_lld_write_data(69); // Set duty parameter
gdisp_lld_write_data(82); // Set duty parameter
gdisp_lld_write_data(67); // Set duty parameter
gdisp_lld_write_command(GRAYSCALE0); // Grey scale 0 position set - 15 parameters
gdisp_lld_write_data(1); // GCP1 - gray lavel to be output when the RAM data is "0001"
gdisp_lld_write_data(2); // GCP2 - gray lavel to be output when the RAM data is "0010"
gdisp_lld_write_data(4); // GCP3 - gray lavel to be output when the RAM data is "0011"
gdisp_lld_write_data(8); // GCP4 - gray lavel to be output when the RAM data is "0100"
gdisp_lld_write_data(16); // GCP5 - gray lavel to be output when the RAM data is "0101"
gdisp_lld_write_data(30); // GCP6 - gray lavel to be output when the RAM data is "0110"
gdisp_lld_write_data(40); // GCP7 - gray lavel to be output when the RAM data is "0111"
gdisp_lld_write_data(50); // GCP8 - gray lavel to be output when the RAM data is "1000"
gdisp_lld_write_data(60); // GCP9 - gray lavel to be output when the RAM data is "1001"
gdisp_lld_write_data(70); // GCP10 - gray lavel to be output when the RAM data is "1010"
gdisp_lld_write_data(80); // GCP11 - gray lavel to be output when the RAM data is "1011"
gdisp_lld_write_data(90); // GCP12 - gray lavel to be output when the RAM data is "1100"
gdisp_lld_write_data(100); // GCP13 - gray lavel to be output when the RAM data is "1101"
gdisp_lld_write_data(110); // GCP14 - gray lavel to be output when the RAM data is "1110"
gdisp_lld_write_data(127); // GCP15 - gray lavel to be output when the RAM data is "1111"
gdisp_lld_write_command(GAMMA); // Gamma curve set - select gray scale - GRAYSCALE 0 or GREYSCALE 1
gdisp_lld_write_data(1); // Select grey scale 0
gdisp_lld_write_command(COMMONDRV); // Command driver output
gdisp_lld_write_data(0); // Set COM1-COM41 side come first, normal mod
gdisp_lld_write_command(NORMALMODE); // Set Normal mode (my)
// gdisp_lld_write_command(INVERSIONOFF); // Inversion off
gdisp_lld_write_command(COLADDRSET); // Column address set
gdisp_lld_write_data(0);
gdisp_lld_write_data(131);
gdisp_lld_write_command(PAGEADDRSET); // Page address set
gdisp_lld_write_data(0);
gdisp_lld_write_data(131);
gdisp_lld_write_command(ACCESSCTRL); // Memory access controler
gdisp_lld_write_data(0x40); // horizontal
//gdisp_lld_write_data(0x20); // vertical
gdisp_lld_write_command(PWRCTRL); // Power control
gdisp_lld_write_data(4); // Internal resistance, V1OUT -> high power mode, oscilator devision rate
gdisp_lld_write_command(SLEEPOUT); // Sleep out
gdisp_lld_write_command(VOLTCTRL); // Voltage control - voltage control and write contrast define LCD electronic volume
//gdisp_lld_write_data(0x7f); // full voltage control
//gdisp_lld_write_data(0x03); // must be "1"
gdisp_lld_write_command(CONTRAST); // Write contrast
gdisp_lld_write_data(0x3b); // contrast
Delay(2000);
gdisp_lld_write_command(TEMPGRADIENT); // Temperature gradient
for(i=0; i<14; i++) gdisp_lld_write_data(0);
gdisp_lld_write_command(BOOSTVON); // Booster voltage ON
gdisp_lld_write_command(DISPLAYON); // Finally - Display On
#endif
#endif
/* Turn on the back-light */
gdisp_lld_setpin_backlight(TRUE);
/* Initialise the GDISP structure to match */
GDISP.Width = 132;
GDISP.Height = 132;
GDISP.Orientation = portrait;
GDISP.Powermode = powerOn;
}
/**
* @brief Draws a pixel on the display.
*
* @param[in] x X location of the pixel
* @param[in] y Y location of the pixel
* @param[in] color The color of the pixel
*
* @notapi
*/
void gdisp_lld_drawpixel(coord_t x, coord_t y, color_t color) {
#if GDISP_NEED_VALIDATION
if (x >= GDISP.Width || y >= GDISP.Height) return;
#endif
gdisp_lld_setviewport(x, y, 1, 1);
gdisp_lld_write_command(RAMWR);
gdisp_lld_write_data((color >> 4) & 0xFF);
gdisp_lld_write_data((color << 4) & 0xF0);
gdisp_lld_write_command(NOP);
}
/* ---- Optional Routines ---- */
/*
All the below routines are optional.
Defining them will increase speed but everything
will work if they are not defined.
If you are not using a routine - turn it off using
the appropriate GDISP_HARDWARE_XXXX macro.
Don't bother coding for obvious similar routines if
there is no performance penalty as the emulation software
makes a good job of using similar routines.
eg. If gdisp_lld_fillarea() is defined there is little
point in defining gdisp_lld_clear() unless the
performance bonus is significant.
For good performance it is suggested to implement
gdisp_lld_fillarea() and gdisp_lld_blitarea().
*/
#if GDISP_HARDWARE_POWERCONTROL || defined(__DOXYGEN__)
/**
* @brief Sets the power mode for the graphic device.
* @note The power modes are powerOn, powerSleep and powerOff.
* If powerSleep is not supported it is equivalent to powerOn.
*
* @param[in] powerMode The new power mode
*
* @notapi
*/
void gdisp_lld_setpowermode(gdisp_powermode_t powerMode) {
/* NOT IMPLEMENTED YET */
if (GDISP.Powermode == powerMode)
return;
switch(powerMode) {
case powerOff:
/* Code here */
break;
case powerOn:
/* Code here */
/* You may need this ---
if (GDISP.Powermode != powerSleep)
gdisp_lld_init();
*/
break;
case powerSleep:
/* Code here */
break;
default:
return;
}
GDISP.Powermode = powerMode;
}
#endif
#if GDISP_HARDWARE_ORIENTATION || defined(__DOXYGEN__)
/**
* @brief Sets the orientation of the display.
* @note This may be ignored if not supported by the device.
*
* @param[in] newOrientation The new orientation
*
* @notapi
*/
void gdisp_lld_setorientation(gdisp_orientation_t newOrientation) {
/* NOT IMPLEMENTED YET */
if (GDISP.Orientation == newOrientation)
return;
// WriteSpiData(0x48); // no mirror Y (temporary to satisfy Olimex bmptoarray utility)
// WriteSpiData(0xC8); // restore to (mirror x and y, reverse rgb)
switch(newOrientation) {
case portrait:
/* Code here */
GDISP.Height = SCREEN_HEIGHT;
GDISP.Width = SCREEN_WIDTH;
break;
case landscape:
/* Code here */
GDISP.Height = SCREEN_WIDTH;
GDISP.Width = SCREEN_HEIGHT;
break;
case portraitInv:
/* Code here */
GDISP.Height = SCREEN_HEIGHT;
GDISP.Width = SCREEN_WIDTH;
break;
case landscapeInv:
/* Code here */
GDISP.Height = SCREEN_WIDTH;
GDISP.Width = SCREEN_HEIGHT;
break;
default:
return;
}
GDISP.Orientation = newOrientation;
}
#endif
#if GDISP_HARDWARE_CLEARS || defined(__DOXYGEN__)
/**
* @brief Clear the display.
* @note Optional - The high level driver can emulate using software.
*
* @param[in] color The color of the pixel
*
* @notapi
*/
void gdisp_lld_clear(color_t color) {
/* NOT IMPLEMENTED */
/* Nothing to be gained by implementing this
* as fillarea is just as fast.
*/
}
#endif
#if GDISP_HARDWARE_LINES || defined(__DOXYGEN__)
/**
* @brief Draw a line.
* @note Optional - The high level driver can emulate using software.
*
* @param[in] x0, y0 The start of the line
* @param[in] x1, y1 The end of the line
* @param[in] color The color of the line
*
* @notapi
*/
void gdisp_lld_drawline(coord_t x0, coord_t y0, coord_t x1, coord_t y1, color_t color) {
/* NOT IMPLEMENTED */
}
#endif
#if GDISP_HARDWARE_BOX || defined(__DOXYGEN__)
/**
* @brief Draw a box.
* @pre The GDISP unit must be in powerOn or powerSleep mode.
*
* @param[in] x0,y0 The start position
* @param[in] cx,cy The size of the box (outside dimensions)
* @param[in] color The color to use
* @param[in] filled Should the box should be filled
*
* @notapi
*/
void gdisp_lld_drawbox(coord_t x, coord_t y, coord_t cx, coord_t cy, color_t color) {
/* NOT IMPLEMENTED */
}
#endif
#if GDISP_HARDWARE_FILLS || defined(__DOXYGEN__)
/**
* @brief Fill an area with a color.
* @note Optional - The high level driver can emulate using software.
*
* @param[in] x, y The start filled area
* @param[in] cx, cy The width and height to be filled
* @param[in] color The color of the fill
*
* @notapi
*/
void gdisp_lld_fillarea(coord_t x, coord_t y, coord_t cx, coord_t cy, color_t color) {
unsigned i, tuples;
#if GDISP_NEED_VALIDATION
if (cx < 1 || cy < 1 || x >= GDISP.Width || y >= GDISP.Height) return;
if (x+cx > GDISP.Width) cx = GDISP.Width - x;
if (y+cy > GDISP.Height) cy = GDISP.Height - y;
#endif
tuples = (cx*cy+1)/2; // With an odd sized area we over-print by one pixel.
// This extra pixel is ignored by the controller.
gdisp_lld_setviewport(x, y, cx, cy);
gdisp_lld_write_command(RAMWR);
for(i=0; i < tuples; i++) {
gdisp_lld_write_data((color >> 4) & 0xFF);
gdisp_lld_write_data(((color << 4) & 0xF0)|((color >> 8) & 0x0F));
gdisp_lld_write_data(color & 0xFF);
}
}
#endif
#if GDISP_HARDWARE_BITFILLS || defined(__DOXYGEN__)
/**
* @brief Fill an area with a bitmap.
* @note Optional - The high level driver can emulate using software.
*
* @param[in] x, y The start filled area
* @param[in] cx, cy The width and height to be filled
* @param[in] buffer The pixels to use to fill the area.
*
* @notapi
*/
void gdisp_lld_blitarea(coord_t x, coord_t y, coord_t cx, coord_t cy, pixel_t *buffer) {
unsigned i, area, tuples;
#ifndef GDISP_PACKED_PIXELS
color_t c1, c2;
#endif
#if GDISP_NEED_VALIDATION
if (cx < 1 || cy < 1 || x >= GDISP.Width || y >= GDISP.Height) return;
if (x+cx > GDISP.Width) return;
if (y+cy > GDISP.Height) cy = GDISP.Height - y;
#endif
area = cx*cy;
gdisp_lld_setviewport(x, y, cx, cy);
gdisp_lld_write_command(RAMWR);
#ifdef GDISP_PACKED_PIXELS
// 3 bytes per 2 pixels + an extra 2 bytes if the total size is odd.
// Note we can't just over-estimate this and let the controller handle the extra pixel
// as that might over-run our source buffer (very bad in some circumstances).
tuples = (area/2)*3+(area & 0x01)*2;
for(i=0; i < tuples; i++)
gdisp_lld_write_data(*buffer++);
if (area & 0x01)
gdisp_lld_write_command(NOP);
#else
// Although this controller uses packed pixels we support unpacked pixel
// formats in this blit by packing the data as we feed it to the controller.
tuples = area/2;
for(i=0; i < tuples; i++) {
c1 = *buffer++;
c2 = *buffer++;
gdisp_lld_write_data((c1 >> 4) & 0xFF);
gdisp_lld_write_data(((c1 << 4) & 0xF0)|((c2 >> 8) & 0x0F));
gdisp_lld_write_data(c2 & 0xFF);
}
if (area & 0x01) {
c1 = *buffer++;
gdisp_lld_write_data((c1 >> 4) & 0xFF);
gdisp_lld_write_data((c1 << 4) & 0xF0);
gdisp_lld_write_command(NOP);
}
#endif
}
#endif
/* Circular Drawing Functions */
#if (GDISP_NEED_CIRCLE && GDISP_HARDWARE_CIRCLES) || defined(__DOXYGEN__)
/**
* @brief Draw a circle.
* @note Optional - The high level driver can emulate using software.
* @note If GDISP_NEED_CLIPPING is defined this routine MUST behave
* correctly if the circle is over the edges of the screen.
*
* @param[in] x, y The centre of the circle
* @param[in] radius The radius of the circle
* @param[in] color The color of the circle
*
* @notapi
*/
void gdisp_lld_drawcircle(coord_t x, coord_t y, coord_t radius, color_t color) {
/* NOT IMPLEMENTED */
}
#endif
#if (GDISP_NEED_CIRCLE && GDISP_HARDWARE_CIRCLEFILLS) || defined(__DOXYGEN__)
/**
* @brief Create a filled circle.
* @note Optional - The high level driver can emulate using software.
* @note If GDISP_NEED_CLIPPING is defined this routine MUST behave
* correctly if the circle is over the edges of the screen.
*
* @param[in] x, y The centre of the circle
* @param[in] radius The radius of the circle
* @param[in] color The color of the circle
*
* @notapi
*/
void gdisp_lld_fillcircle(coord_t x, coord_t y, coord_t radius, color_t color) {
/* NOT IMPLEMENTED */
}
#endif
#if (GDISP_NEED_ELLIPSE && GDISP_HARDWARE_ELLIPSES) || defined(__DOXYGEN__)
/**
* @brief Draw an ellipse.
* @note Optional - The high level driver can emulate using software.
* @note If GDISP_NEED_CLIPPING is defined this routine MUST behave
* correctly if the ellipse is over the edges of the screen.
*
* @param[in] x, y The centre of the ellipse
* @param[in] a, b The dimensions of the ellipse
* @param[in] color The color of the ellipse
*
* @notapi
*/
void gdisp_lld_drawellipse(coord_t x, coord_t y, coord_t a, coord_t b, color_t color) {
/* NOT IMPLEMENTED */
}
#endif
#if (GDISP_NEED_ELLIPSE && GDISP_HARDWARE_ELLIPSEFILLS) || defined(__DOXYGEN__)
/**
* @brief Create a filled ellipse.
* @note Optional - The high level driver can emulate using software.
* @note If GDISP_NEED_CLIPPING is defined this routine MUST behave
* correctly if the ellipse is over the edges of the screen.
*
* @param[in] x, y The centre of the ellipse
* @param[in] a, b The dimensions of the ellipse
* @param[in] color The color of the ellipse
*
* @notapi
*/
void gdisp_lld_fillellipse(coord_t x, coord_t y, coord_t a, coord_t b, color_t color) {
/* NOT IMPLEMENTED */
}
#endif
#if (GDISP_NEED_TEXT && GDISP_HARDWARE_TEXT) || defined(__DOXYGEN__)
/**
* @brief Draw a character using a transparent background.
* @note Optional - The high level driver can emulate using software.
*
* @param[in] x, y The top-left corner of the text
* @param[in] c The character to print
* @param[in] color The color of the character
*
* @notapi
*/
void gdisp_lld_drawchar(coord_t x, coord_t y, char c, font_t font, color_t color) {
/* NOT IMPLEMENTED */
}
#endif
#if (GDISP_NEED_TEXT && GDISP_HARDWARE_TEXTFILLS) || defined(__DOXYGEN__)
/**
* @brief Draw a character using a filled background.
* @note Optional - The high level driver can emulate using software.
*
* @param[in] x, y The top-left corner of the text
* @param[in] c The character to print
* @param[in] color The color of the character
* @param[in] bgcolor The background color
*
* @notapi
*/
void gdisp_lld_fillchar(coord_t x, coord_t y, char c, font_t font, color_t color, color_t bgcolor) {
/* NOT IMPLEMENTED */
}
#endif
#if (GDISP_NEED_PIXELREAD && GDISP_HARDWARE_PIXELREAD) || defined(__DOXYGEN__)
/**
* @brief Get the color of a particular pixel.
* @note Optional.
* @note If x,y is off the screen, the result is undefined.
*
* @param[in] x, y The start of the text
*
* @notapi
*/
color_t gdisp_lld_getpixelcolor(coord_t x, coord_t y) {
/* NOT IMPLEMENTED */
}
#endif
#if (GDISP_NEED_SCROLL && GDISP_HARDWARE_SCROLL) || defined(__DOXYGEN__)
/**
* @brief Scroll vertically a section of the screen.
* @note Optional.
* @note If x,y + cx,cy is off the screen, the result is undefined.
* @note If lines is >= cy, it is equivelent to a area fill with bgcolor.
*
* @param[in] x, y The start of the area to be scrolled
* @param[in] cx, cy The size of the area to be scrolled
* @param[in] lines The number of lines to scroll (Can be positive or negative)
* @param[in] bgcolor The color to fill the newly exposed area.
*
* @notapi
*/
void gdisp_lld_verticalscroll(coord_t x, coord_t y, coord_t cx, coord_t cy, int lines, color_t bgcolor) {
/* NOT IMPLEMENTED */
}
#endif
#endif /* HAL_USE_GDISP */
/** @} */
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