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ugfx/drivers/gdisp/ILI9325/gdisp_lld.c

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/*
ChibiOS/GFX - Copyright (C) 2012
Joel Bodenmann aka Tectu <joel@unormal.org>
This file is part of ChibiOS/GFX.
ChibiOS/GFX 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/GFX 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/>.
*/
/*
driver quickly hacked together from a chinese sourcecode that came
with the board and existing ili9320 code by Chris van Dongen (sjaak)
(sjaak2002 at msn.com)
Also added rotation for 180 and 270 degrees and minor tweaks to
setcursor
Added code comes without warranty and free bugs. Feel free to use
or misuse the added code :D
*/
/**
* @file drivers/gdisp/ILI9325/gdisp_lld.c
* @brief GDISP Graphics Driver subsystem low level driver source for the ILI9325 display.
*
* @addtogroup GDISP
* @{
*/
#include "ch.h"
#include "hal.h"
#include "gfx.h"
#if GFX_USE_GDISP /*|| defined(__DOXYGEN__)*/
/* Include the emulation code for things we don't support */
#include "gdisp/lld/emulation.c"
#if defined(GDISP_USE_CUSTOM_BOARD) && GDISP_USE_CUSTOM_BOARD
/* Include the user supplied board definitions */
#include "gdisp_lld_board.h"
#elif defined(BOARD_HY_STM32_100P)
#include "gdisp_lld_board_hy_stm32_100p.h"
#else
#include "gdisp_lld_board.h"
#endif
/*===========================================================================*/
/* Driver local definitions. */
/*===========================================================================*/
/* This controller is only ever used with a 240 x 320 display */
#if defined(GDISP_SCREEN_HEIGHT)
#warning "GDISP: This low level driver does not support setting a screen size. It is being ignored."
#undef GDISP_SCREEN_HEIGHT
#endif
#if defined(GDISP_SCREEN_WIDTH)
#warning "GDISP: This low level driver does not support setting a screen size. It is being ignored."
#undef GDISP_SCREEN_WIDTH
#endif
#define GDISP_SCREEN_WIDTH 240
#define GDISP_SCREEN_HEIGHT 320
#define GDISP_INITIAL_CONTRAST 50
#define GDISP_INITIAL_BACKLIGHT 100
/*===========================================================================*/
/* Driver exported variables. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver local variables. */
/*===========================================================================*/
uint32_t DISPLAY_CODE;
/*===========================================================================*/
/* Driver local functions. */
/*===========================================================================*/
static __inline void lld_lcdDelay(uint16_t us) {
chThdSleepMicroseconds(us);
}
static __inline void lld_lcdWriteIndex(uint16_t index) {
GDISP_LLD(write_index)(index);
}
static __inline void lld_lcdWriteData(uint16_t data) {
GDISP_LLD(write_data)(data);
}
static __inline void lld_lcdWriteReg(uint16_t lcdReg, uint16_t lcdRegValue) {
GDISP_LLD(write_index)(lcdReg);
GDISP_LLD(write_data)(lcdRegValue);
}
static __inline uint16_t lld_lcdReadData(void) {
/* fix this! */
//return GDISP_LLD(read_data);
return GDISP_RAM;
}
static __inline uint16_t lld_lcdReadReg(uint16_t lcdReg) {
volatile uint16_t dummy;
GDISP_LLD(write_index)(lcdReg);
dummy = lld_lcdReadData();
(void)dummy;
return lld_lcdReadData();
}
static __inline void lld_lcdWriteStreamStart(void) {
lld_lcdWriteIndex(0x0022);
}
static __inline void lld_lcdWriteStreamStop(void) {
}
static __inline void lld_lcdWriteStream(uint16_t *buffer, uint16_t size) {
uint16_t i;
for(i = 0; i < size; i++)
lld_lcdWriteData(buffer[i]);
}
static __inline void lld_lcdReadStreamStart(void) {
lld_lcdWriteIndex(0x0022);
}
static __inline void lld_lcdReadStreamStop(void) {
}
static __inline void lld_lcdReadStream(uint16_t *buffer, size_t size) {
uint16_t i;
volatile uint16_t dummy;
dummy = lld_lcdReadData();
(void)dummy;
for(i = 0; i < size; i++)
buffer[i] = lld_lcdReadData();
}
bool_t GDISP_LLD(init)(void) {
/* Initialise your display */
GDISP_LLD(init_board)();
/* Hardware reset */
GDISP_LLD(setpin_reset)(TRUE);
lld_lcdDelay(1000);
GDISP_LLD(setpin_reset)(FALSE);
lld_lcdDelay(1000);
// chinese code starts here
lld_lcdWriteReg(0x0000,0x0001);
lld_lcdDelay(10);
lld_lcdWriteReg(0x0015,0x0030);
lld_lcdWriteReg(0x0011,0x0040);
lld_lcdWriteReg(0x0010,0x1628);
lld_lcdWriteReg(0x0012,0x0000);
lld_lcdWriteReg(0x0013,0x104d);
lld_lcdDelay(10);
lld_lcdWriteReg(0x0012,0x0010);
lld_lcdDelay(10);
lld_lcdWriteReg(0x0010,0x2620);
lld_lcdWriteReg(0x0013,0x344d); //304d
lld_lcdDelay(10);
lld_lcdWriteReg(0x0001,0x0100);
lld_lcdWriteReg(0x0002,0x0300);
lld_lcdWriteReg(0x0003,0x1038);//0x1030
lld_lcdWriteReg(0x0008,0x0604);
lld_lcdWriteReg(0x0009,0x0000);
lld_lcdWriteReg(0x000A,0x0008);
lld_lcdWriteReg(0x0041,0x0002);
lld_lcdWriteReg(0x0060,0x2700);
lld_lcdWriteReg(0x0061,0x0001);
lld_lcdWriteReg(0x0090,0x0182);
lld_lcdWriteReg(0x0093,0x0001);
lld_lcdWriteReg(0x00a3,0x0010);
lld_lcdDelay(10);
//################# void Gamma_Set(void) ####################//
lld_lcdWriteReg(0x30,0x0000);
lld_lcdWriteReg(0x31,0x0502);
lld_lcdWriteReg(0x32,0x0307);
lld_lcdWriteReg(0x33,0x0305);
lld_lcdWriteReg(0x34,0x0004);
lld_lcdWriteReg(0x35,0x0402);
lld_lcdWriteReg(0x36,0x0707);
lld_lcdWriteReg(0x37,0x0503);
lld_lcdWriteReg(0x38,0x1505);
lld_lcdWriteReg(0x39,0x1505);
lld_lcdDelay(10);
//################## void Display_ON(void) ####################//
lld_lcdWriteReg(0x0007,0x0001);
lld_lcdDelay(10);
lld_lcdWriteReg(0x0007,0x0021);
lld_lcdWriteReg(0x0007,0x0023);
lld_lcdDelay(10);
lld_lcdWriteReg(0x0007,0x0033);
lld_lcdDelay(10);
lld_lcdWriteReg(0x0007,0x0133);
// chinese code ends here
// Turn on the backlight
GDISP_LLD(set_backlight)(GDISP_INITIAL_BACKLIGHT);
/* Initialise the GDISP structure */
GDISP.Width = GDISP_SCREEN_WIDTH;
GDISP.Height = GDISP_SCREEN_HEIGHT;
GDISP.Orientation = GDISP_ROTATE_0;
GDISP.Powermode = powerOn;
GDISP.Backlight = GDISP_INITIAL_BACKLIGHT;
GDISP.Contrast = GDISP_INITIAL_CONTRAST;
#if GDISP_NEED_VALIDATION || GDISP_NEED_CLIP
GDISP.clipx0 = 0;
GDISP.clipy0 = 0;
GDISP.clipx1 = GDISP.Width;
GDISP.clipy1 = GDISP.Height;
#endif
return TRUE;
}
static void lld_lcdSetCursor(uint16_t x, uint16_t y) {
switch(GDISP.Orientation) {
case GDISP_ROTATE_0:
lld_lcdWriteReg(0x0020, x);
lld_lcdWriteReg(0x0021, y);
break;
case GDISP_ROTATE_90:
lld_lcdWriteReg(0x0020, y);
lld_lcdWriteReg(0x0021, x);
break;
case GDISP_ROTATE_180:
lld_lcdWriteReg(0x0020, x);
lld_lcdWriteReg(0x0021, y);
break;
case GDISP_ROTATE_270:
lld_lcdWriteReg(0x0020, y);
lld_lcdWriteReg(0x0021, x);
break;
}
}
static void lld_lcdSetViewPort(uint16_t x, uint16_t y, uint16_t cx, uint16_t cy) {
switch(GDISP.Orientation) {
case GDISP_ROTATE_0:
lld_lcdWriteReg(0x0050, x);
lld_lcdWriteReg(0x0051, x + cx - 1);
lld_lcdWriteReg(0x0052, y);
lld_lcdWriteReg(0x0053, y + cy - 1);
break;
case GDISP_ROTATE_90:
lld_lcdWriteReg(0x0050, y);
lld_lcdWriteReg(0x0051, y + cy - 1);
lld_lcdWriteReg(0x0052, x);
lld_lcdWriteReg(0x0053, x + cx - 1);
break;
case GDISP_ROTATE_180:
lld_lcdWriteReg(0x0050, x);
lld_lcdWriteReg(0x0051, x + cx - 1);
lld_lcdWriteReg(0x0052, y);
lld_lcdWriteReg(0x0053, y + cy - 1);
break;
case GDISP_ROTATE_270:
lld_lcdWriteReg(0x0050, y);
lld_lcdWriteReg(0x0051, y + cy - 1);
lld_lcdWriteReg(0x0052, x);
lld_lcdWriteReg(0x0053, x + cx - 1);
break;
}
lld_lcdSetCursor(x, y);
}
static __inline void lld_lcdResetViewPort(void) {
switch(GDISP.Orientation) {
case GDISP_ROTATE_0:
case GDISP_ROTATE_180:
lld_lcdSetViewPort(0, 0, GDISP_SCREEN_WIDTH, GDISP_SCREEN_HEIGHT);
break;
case GDISP_ROTATE_90:
case GDISP_ROTATE_270:
lld_lcdSetViewPort(0, 0, GDISP_SCREEN_HEIGHT, GDISP_SCREEN_WIDTH);
break;
}
}
void GDISP_LLD(drawpixel)(coord_t x, coord_t y, color_t color) {
#if GDISP_NEED_VALIDATION || GDISP_NEED_CLIP
if (x < GDISP.clipx0 || y < GDISP.clipy0 || x >= GDISP.clipx1 || y >= GDISP.clipy1) return;
#endif
lld_lcdSetCursor(x, y);
lld_lcdWriteReg(0x0022, color);
}
#if GDISP_HARDWARE_CLEARS || defined(__DOXYGEN__)
void GDISP_LLD(clear)(color_t color) {
unsigned i;
lld_lcdSetCursor(0, 0);
lld_lcdWriteStreamStart();
for(i = 0; i < GDISP_SCREEN_WIDTH * GDISP_SCREEN_HEIGHT; i++)
lld_lcdWriteData(color);
lld_lcdWriteStreamStop();
}
#endif
#if GDISP_HARDWARE_FILLS || defined(__DOXYGEN__)
void GDISP_LLD(fillarea)(coord_t x, coord_t y, coord_t cx, coord_t cy, color_t color) {
#if GDISP_NEED_VALIDATION || GDISP_NEED_CLIP
if (x < GDISP.clipx0) { cx -= GDISP.clipx0 - x; x = GDISP.clipx0; }
if (y < GDISP.clipy0) { cy -= GDISP.clipy0 - y; y = GDISP.clipy0; }
if (cx <= 0 || cy <= 0 || x >= GDISP.clipx1 || y >= GDISP.clipy1) return;
if (x+cx > GDISP.clipx1) cx = GDISP.clipx1 - x;
if (y+cy > GDISP.clipy1) cy = GDISP.clipy1 - y;
#endif
unsigned i, area;
area = cx*cy;
lld_lcdSetViewPort(x, y, cx, cy);
lld_lcdWriteStreamStart();
for(i = 0; i < area; i++)
lld_lcdWriteData(color);
lld_lcdWriteStreamStop();
lld_lcdResetViewPort();
}
#endif
#if GDISP_HARDWARE_BITFILLS || defined(__DOXYGEN__)
void GDISP_LLD(blitareaex)(coord_t x, coord_t y, coord_t cx, coord_t cy, coord_t srcx, coord_t srcy, coord_t srccx, const pixel_t *buffer) {
coord_t endx, endy;
unsigned lg;
#if GDISP_NEED_VALIDATION || GDISP_NEED_CLIP
if (x < GDISP.clipx0) { cx -= GDISP.clipx0 - x; srcx += GDISP.clipx0 - x; x = GDISP.clipx0; }
if (y < GDISP.clipy0) { cy -= GDISP.clipy0 - y; srcy += GDISP.clipy0 - y; y = GDISP.clipy0; }
if (srcx+cx > srccx) cx = srccx - srcx;
if (cx <= 0 || cy <= 0 || x >= GDISP.clipx1 || y >= GDISP.clipy1) return;
if (x+cx > GDISP.clipx1) cx = GDISP.clipx1 - x;
if (y+cy > GDISP.clipy1) cy = GDISP.clipy1 - y;
#endif
lld_lcdSetViewPort(x, y, cx, cy);
lld_lcdWriteStreamStart();
endx = srcx + cx;
endy = y + cy;
lg = srccx - cx;
buffer += srcx + srcy * srccx;
for(; y < endy; y++, buffer += lg)
for(x=srcx; x < endx; x++)
lld_lcdWriteData(*buffer++);
lld_lcdWriteStreamStop();
lld_lcdResetViewPort();
}
#endif
#if (GDISP_NEED_PIXELREAD && GDISP_HARDWARE_PIXELREAD) || defined(__DOXYGEN__)
color_t GDISP_LLD(getpixelcolor)(coord_t x, coord_t y) {
color_t color;
#if GDISP_NEED_VALIDATION || GDISP_NEED_CLIP
if (x < 0 || x >= GDISP.Width || y < 0 || y >= GDISP.Height) return 0;
#endif
lld_lcdSetCursor(x, y);
lld_lcdWriteStreamStart();
color = lld_lcdReadData();
color = lld_lcdReadData();
lld_lcdWriteStreamStop();
return color;
}
#endif
#if (GDISP_NEED_SCROLL && GDISP_HARDWARE_SCROLL) || defined(__DOXYGEN__)
void GDISP_LLD(verticalscroll)(coord_t x, coord_t y, coord_t cx, coord_t cy, int lines, color_t bgcolor) {
static color_t buf[((GDISP_SCREEN_HEIGHT > GDISP_SCREEN_WIDTH ) ? GDISP_SCREEN_HEIGHT : GDISP_SCREEN_WIDTH)];
coord_t row0, row1;
unsigned i, gap, abslines;
#if GDISP_NEED_VALIDATION || GDISP_NEED_CLIP
if (x < GDISP.clipx0) { cx -= GDISP.clipx0 - x; x = GDISP.clipx0; }
if (y < GDISP.clipy0) { cy -= GDISP.clipy0 - y; y = GDISP.clipy0; }
if (!lines || cx <= 0 || cy <= 0 || x >= GDISP.clipx1 || y >= GDISP.clipy1) return;
if (x+cx > GDISP.clipx1) cx = GDISP.clipx1 - x;
if (y+cy > GDISP.clipy1) cy = GDISP.clipy1 - y;
#endif
abslines = lines < 0 ? -lines : lines;
if (abslines >= cy) {
abslines = cy;
gap = 0;
} else {
gap = cy - abslines;
for(i = 0; i < gap; i++) {
if(lines > 0) {
row0 = y + i + lines;
row1 = y + i;
} else {
row0 = (y - i - 1) + lines;
row1 = (y - i - 1);
}
/* read row0 into the buffer and then write at row1*/
lld_lcdSetViewPort(x, row0, cx, 1);
lld_lcdReadStreamStart();
lld_lcdReadStream(buf, cx);
lld_lcdReadStreamStop();
lld_lcdSetViewPort(x, row1, cx, 1);
lld_lcdWriteStreamStart();
lld_lcdWriteStream(buf, cx);
lld_lcdWriteStreamStop();
}
}
/* fill the remaining gap */
lld_lcdSetViewPort(x, lines > 0 ? (y+gap) : y, cx, abslines);
lld_lcdWriteStreamStart();
gap = cx*abslines;
for(i = 0; i < gap; i++) lld_lcdWriteData(bgcolor);
lld_lcdWriteStreamStop();
lld_lcdResetViewPort();
}
#endif
#if (GDISP_NEED_CONTROL && GDISP_HARDWARE_CONTROL) || defined(__DOXYGEN__)
void GDISP_LLD(control)(unsigned what, void *value) {
switch(what) {
case GDISP_CONTROL_POWER:
if(GDISP.Powermode == (gdisp_powermode_t)value)
return;
switch((gdisp_powermode_t)value) {
case powerOff:
lld_lcdWriteReg(0x0007, 0x0000);
lld_lcdWriteReg(0x0010, 0x0000);
lld_lcdWriteReg(0x0011, 0x0000);
lld_lcdWriteReg(0x0012, 0x0000);
lld_lcdWriteReg(0x0013, 0x0000);
GDISP_LLD(set_backlight)(0);
break;
case powerOn:
//*************Power On sequence ******************//
lld_lcdWriteReg(0x0010, 0x0000); /* SAP, BT[3:0], AP, DSTB, SLP, STB */
lld_lcdWriteReg(0x0011, 0x0000); /* DC1[2:0], DC0[2:0], VC[2:0] */
lld_lcdWriteReg(0x0012, 0x0000); /* VREG1OUT voltage */
lld_lcdWriteReg(0x0013, 0x0000); /* VDV[4:0] for VCOM amplitude */
lld_lcdDelay(2000); /* Dis-charge capacitor power voltage */
lld_lcdWriteReg(0x0010, 0x17B0); /* SAP, BT[3:0], AP, DSTB, SLP, STB */
lld_lcdWriteReg(0x0011, 0x0147); /* DC1[2:0], DC0[2:0], VC[2:0] */
lld_lcdDelay(500);
lld_lcdWriteReg(0x0012, 0x013C); /* VREG1OUT voltage */
lld_lcdDelay(500);
lld_lcdWriteReg(0x0013, 0x0E00); /* VDV[4:0] for VCOM amplitude */
lld_lcdWriteReg(0x0029, 0x0009); /* VCM[4:0] for VCOMH */
lld_lcdDelay(500);
lld_lcdWriteReg(0x0007, 0x0173); /* 262K color and display ON */
GDISP_LLD(set_backlight)(GDISP.Backlight);
if(GDISP.Powermode != powerSleep || GDISP.Powermode != powerDeepSleep)
GDISP_LLD(init)();
break;
case powerSleep:
lld_lcdWriteReg(0x0007, 0x0000); /* display OFF */
lld_lcdWriteReg(0x0010, 0x0000); /* SAP, BT[3:0], APE, AP, DSTB, SLP */
lld_lcdWriteReg(0x0011, 0x0000); /* DC1[2:0], DC0[2:0], VC[2:0] */
lld_lcdWriteReg(0x0012, 0x0000); /* VREG1OUT voltage */
lld_lcdWriteReg(0x0013, 0x0000); /* VDV[4:0] for VCOM amplitude */
lld_lcdDelay(2000); /* Dis-charge capacitor power voltage */
lld_lcdWriteReg(0x0010, 0x0002); /* SAP, BT[3:0], APE, AP, DSTB, SLP */
GDISP_LLD(set_backlight)(0);
break;
case powerDeepSleep:
lld_lcdWriteReg(0x0007, 0x0000); /* display OFF */
lld_lcdWriteReg(0x0010, 0x0000); /* SAP, BT[3:0], APE, AP, DSTB, SLP */
lld_lcdWriteReg(0x0011, 0x0000); /* DC1[2:0], DC0[2:0], VC[2:0] */
lld_lcdWriteReg(0x0012, 0x0000); /* VREG1OUT voltage */
lld_lcdWriteReg(0x0013, 0x0000); /* VDV[4:0] for VCOM amplitude */
lld_lcdDelay(2000); /* Dis-charge capacitor power voltage */
lld_lcdWriteReg(0x0010, 0x0004); /* SAP, BT[3:0], APE, AP, DSTB, SLP */
GDISP_LLD(set_backlight)(0);
break;
default:
return;
}
GDISP.Powermode = (gdisp_powermode_t)value;
return;
case GDISP_CONTROL_ORIENTATION:
if(GDISP.Orientation == (gdisp_orientation_t)value)
return;
switch((gdisp_orientation_t)value) {
case GDISP_ROTATE_0:
lld_lcdWriteReg(0x0001, 0x0100);
lld_lcdWriteReg(0x0003, 0x1038);
lld_lcdWriteReg(0x0060, 0x2700);
GDISP.Height = GDISP_SCREEN_HEIGHT;
GDISP.Width = GDISP_SCREEN_WIDTH;
break;
case GDISP_ROTATE_90:
lld_lcdWriteReg(0x0001, 0x0000);
lld_lcdWriteReg(0x0003, 0x1030);
lld_lcdWriteReg(0x0060, 0x2700);
GDISP.Height = GDISP_SCREEN_WIDTH;
GDISP.Width = GDISP_SCREEN_HEIGHT;
break;
case GDISP_ROTATE_180:
lld_lcdWriteReg(0x0001, 0x0000);
lld_lcdWriteReg(0x0003, 0x1038);
lld_lcdWriteReg(0x0060, 0xa700);
GDISP.Height = GDISP_SCREEN_HEIGHT;
GDISP.Width = GDISP_SCREEN_WIDTH;
break;
case GDISP_ROTATE_270:
lld_lcdWriteReg(0x0001, 0x0100);
lld_lcdWriteReg(0x0003, 0x1030);
lld_lcdWriteReg(0x0060, 0xA700);
GDISP.Height = GDISP_SCREEN_WIDTH;
GDISP.Width = GDISP_SCREEN_HEIGHT;
break;
default:
return;
}
#if GDISP_NEED_CLIP || GDISP_NEED_VALIDATION
GDISP.clipx0 = 0;
GDISP.clipy0 = 0;
GDISP.clipx1 = GDISP.Width;
GDISP.clipy1 = GDISP.Height;
#endif
GDISP.Orientation = (gdisp_orientation_t)value;
return;
case GDISP_CONTROL_BACKLIGHT:
if((unsigned)value > 100) value = (void *)100;
GDISP_LLD(set_backlight)((unsigned)value);
GDISP.Backlight = (unsigned)value;
break;
default:
return;
}
}
#endif
#endif /* GFX_USE_GDISP */
/** @} */
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