279 lines
8.2 KiB
C
279 lines
8.2 KiB
C
/*
|
|
* This file is subject to the terms of the GFX License. If a copy of
|
|
* the license was not distributed with this file, you can obtain one at:
|
|
*
|
|
* http://ugfx.io/license.html
|
|
*/
|
|
|
|
#include "gfx.h"
|
|
|
|
#if GFX_USE_GDISP /*|| defined(__DOXYGEN__)*/
|
|
|
|
#define GDISP_DRIVER_VMT GDISPVMT_RA8875
|
|
#include "gdisp_lld_config.h"
|
|
#include "../../../src/gdisp/gdisp_driver.h"
|
|
|
|
/* include the users board interface */
|
|
#include "board_RA8875.h"
|
|
|
|
/*===========================================================================*/
|
|
/* Driver local definitions. */
|
|
/*===========================================================================*/
|
|
|
|
#ifndef GDISP_SCREEN_HEIGHT
|
|
#define GDISP_SCREEN_HEIGHT 272
|
|
#endif
|
|
#ifndef GDISP_SCREEN_WIDTH
|
|
#define GDISP_SCREEN_WIDTH 480
|
|
#endif
|
|
#ifndef GDISP_INITIAL_CONTRAST
|
|
#define GDISP_INITIAL_CONTRAST 50
|
|
#endif
|
|
#ifndef GDISP_INITIAL_BACKLIGHT
|
|
#define GDISP_INITIAL_BACKLIGHT 74
|
|
#endif
|
|
|
|
/*===========================================================================*/
|
|
/* Driver local functions. */
|
|
/*===========================================================================*/
|
|
|
|
// Some common routines and macros
|
|
#define dummy_read(g) { volatile gU16 dummy; dummy = read_data(g); (void) dummy; }
|
|
#define write_reg8(g, reg, data) { write_index(g, reg); write_data(g, data); }
|
|
#define write_reg16(g, reg, data) { write_index(g, reg); write_data(g, data); write_index(g, reg+1); write_data(g, (data)>>8); }
|
|
#define write_reg8x2(g, reg, d1, d2) { write_index(g, reg); write_data(g, d1); write_data(g, d2); }
|
|
|
|
static GFXINLINE void set_cursor(GDisplay *g) {
|
|
write_reg16(g, 0x46, g->p.x);
|
|
write_reg16(g, 0x48, g->p.y);
|
|
write_index(g, 0x02);
|
|
}
|
|
|
|
static GFXINLINE void set_viewport(GDisplay* g) {
|
|
write_reg16(g, 0x30, g->p.x); //HSAW0 & HSAW1
|
|
write_reg16(g, 0x34, g->p.x+g->p.cx-1); //HEAW0 & HEAW1
|
|
write_reg16(g, 0x32, g->p.y); //VSAW0 & VSAW1
|
|
write_reg16(g, 0x36, g->p.y+g->p.cy-1); //VEAW0 & VEAW1
|
|
}
|
|
|
|
// On this controller the back-light is controlled by the controllers internal PWM
|
|
// which is why it is in this file rather than the board file.
|
|
static GFXINLINE void set_backlight(GDisplay* g, gU8 percent) {
|
|
gU8 temp;
|
|
|
|
//Work in progress: the RA8875 has a built-in PWM, its output can
|
|
//be used by a Dynamic Background Control or by a host (user)
|
|
|
|
// Enable PWM1
|
|
write_index(g, 0x8a); //MCLR
|
|
setreadmode(g);
|
|
temp = read_data(g);
|
|
setwritemode(g);
|
|
temp |= 1<<7 ;
|
|
write_data(g, temp);
|
|
|
|
// PWM1 function select
|
|
write_index(g, 0x8a); //MCLR
|
|
setreadmode(g);
|
|
temp = read_data(g);
|
|
setwritemode(g);
|
|
temp &= ~(1<<4);
|
|
write_data(g, temp);
|
|
|
|
// PWM1 Clock ratio
|
|
write_index(g, 0x8a); //MCLR
|
|
setreadmode(g);
|
|
temp = read_data(g);
|
|
setwritemode(g);
|
|
temp &= 0xf0;
|
|
temp |= 0x0b & 0x0f;
|
|
write_data(g, temp);
|
|
|
|
// PWM1 Write duty cycle
|
|
write_reg8(g, 0x8b, 54+percent); // PTNO: Also change percent to range from 0x00 to 0xFF
|
|
}
|
|
|
|
/*===========================================================================*/
|
|
/* Driver interrupt handlers. */
|
|
/*===========================================================================*/
|
|
|
|
/*===========================================================================*/
|
|
/* Driver exported functions. */
|
|
/*===========================================================================*/
|
|
|
|
LLDSPEC gBool gdisp_lld_init(GDisplay *g) {
|
|
// No private area for this controller
|
|
g->priv = 0;
|
|
|
|
// Initialise the board interface
|
|
init_board(g);
|
|
|
|
// Hardware reset
|
|
setpin_reset(g, gTrue);
|
|
gfxSleepMilliseconds(20);
|
|
setpin_reset(g, gFalse);
|
|
gfxSleepMilliseconds(20);
|
|
|
|
// Get the bus for the following initialisation commands
|
|
acquire_bus(g);
|
|
|
|
// Soft reset
|
|
write_reg8x2(g, 0x01, 0x01, 0x00); gfxSleepMilliseconds(1);
|
|
|
|
// PLL config
|
|
write_reg8(g, 0x88, 0x08); gfxSleepMilliseconds(1);
|
|
write_reg8(g, 0x89, 0x02); gfxSleepMilliseconds(1);
|
|
|
|
write_reg8(g, 0x10, 0x0F); //SYSR bit[4:3]=00 256 color bit[2:1]= 00 8bit MPU interface
|
|
// 0x0F = 16bit MCU interface and 65k color display
|
|
|
|
write_reg8(g, 0x04, 0x82); gfxSleepMilliseconds(1); //set PCLK inverse
|
|
|
|
// Horizontal set
|
|
write_reg8(g, 0x14, GDISP_SCREEN_WIDTH/8-1); //HDWR: Horizontal Display Width Setting Bit[6:0] - pixels = (HDWR + 1)*8
|
|
write_reg8(g, 0x15, 0x00); //Horizontal Non-Display Period Fine Tuning Option Register (HNDFTR) - HNDFT = [3:0]
|
|
write_reg8(g, 0x16, 0x01); //HNDR: Horizontal Non-Display Period Bit[4:0] - pixels = (HNDR + 1)*8
|
|
write_reg8(g, 0x17, 0x00); //HSTR: HSYNC Start Position[4:0] - Position(PCLK) = (HSTR + 1)*8
|
|
write_reg8(g, 0x18, 0x05); //HPWR: HSYNC Polarity, The period width of HSYNC. Width [4:0] width(PCLK) = (HPWR + 1)*8
|
|
|
|
// Vertical set
|
|
write_reg16(g, 0x19, GDISP_SCREEN_HEIGHT-1); //VDHR0,1: Vertical Display Height = VDHR + 1
|
|
write_reg16(g, 0x1b, 0x0002); //VNDR0,1: Vertical Non-Display Period Bit = (VSTR + 1)
|
|
write_reg16(g, 0x1d, 0x0007); //VSTR0,1: VSYNC Start Position = (VSTR + 1)
|
|
write_reg8(g, 0x1f, 0x09); //VPWR: VSYNC Polarity, VSYNC Pulse Width[6:0] - Width(PCLK) = (VPWR + 1)
|
|
|
|
// Active window set
|
|
write_reg16(g, 0x30, 0); //HSAW0 & HSAW1
|
|
write_reg16(g, 0x34, GDISP_SCREEN_WIDTH-1); //HEAW0 & HEAW1
|
|
write_reg16(g, 0x32, 0); //VSAW0 & VSAW1
|
|
write_reg16(g, 0x36, GDISP_SCREEN_HEIGHT-1); //VEAW0 & VEAW1
|
|
|
|
// Display ON
|
|
write_reg8(g, 0x01, 0x80); //PWRR
|
|
|
|
// GPO0 DISP high
|
|
write_reg8(g, 0x13, 0x01); //GPO
|
|
|
|
// Set initial back-light
|
|
set_backlight(g, GDISP_INITIAL_BACKLIGHT);
|
|
|
|
// Change timings for faster access
|
|
post_init_board(g);
|
|
|
|
// Release the bus
|
|
release_bus(g);
|
|
|
|
/* Initialise the GDISP structure */
|
|
g->g.Width = GDISP_SCREEN_WIDTH;
|
|
g->g.Height = GDISP_SCREEN_HEIGHT;
|
|
g->g.Orientation = gOrientation0;
|
|
g->g.Powermode = gPowerOn;
|
|
g->g.Backlight = GDISP_INITIAL_BACKLIGHT;
|
|
g->g.Contrast = GDISP_INITIAL_CONTRAST;
|
|
return gTrue;
|
|
}
|
|
|
|
#if GDISP_HARDWARE_STREAM_WRITE
|
|
LLDSPEC void gdisp_lld_write_start(GDisplay *g) {
|
|
acquire_bus(g);
|
|
set_viewport(g);
|
|
}
|
|
LLDSPEC void gdisp_lld_write_color(GDisplay *g) {
|
|
write_data(g, gdispColor2Native(g->p.color));
|
|
}
|
|
LLDSPEC void gdisp_lld_write_stop(GDisplay *g) {
|
|
release_bus(g);
|
|
}
|
|
LLDSPEC void gdisp_lld_write_pos(GDisplay *g) {
|
|
set_cursor(g);
|
|
}
|
|
#endif
|
|
|
|
#if GDISP_NEED_CONTROL && GDISP_HARDWARE_CONTROL
|
|
LLDSPEC void gdisp_lld_control(GDisplay *g) {
|
|
switch(g->p.x) {
|
|
#if 0
|
|
case GDISP_CONTROL_POWER:
|
|
if (g->g.Powermode == (gPowermode)g->p.ptr)
|
|
return;
|
|
switch((gPowermode)g->p.ptr) {
|
|
case gPowerOff:
|
|
acquire_bus(g);
|
|
// TODO
|
|
release_bus(g);
|
|
break;
|
|
case gPowerOn:
|
|
acquire_bus(g);
|
|
// TODO
|
|
release_bus(g);
|
|
break;
|
|
case gPowerSleep:
|
|
acquire_bus(g);
|
|
// TODO
|
|
release_bus(g);
|
|
break;
|
|
default:
|
|
return;
|
|
}
|
|
g->g.Powermode = (gPowermode)g->p.ptr;
|
|
return;
|
|
#endif
|
|
|
|
#if 0
|
|
case GDISP_CONTROL_ORIENTATION:
|
|
if (g->g.Orientation == (gOrientation)g->p.ptr)
|
|
return;
|
|
switch((gOrientation)g->p.ptr) {
|
|
case gOrientation0:
|
|
acquire_bus(g);
|
|
// TODO
|
|
release_bus(g);
|
|
g->g.Height = GDISP_SCREEN_HEIGHT;
|
|
g->g.Width = GDISP_SCREEN_WIDTH;
|
|
break;
|
|
case gOrientation90:
|
|
acquire_bus(g);
|
|
// TODO
|
|
release_bus(g);
|
|
g->g.Height = GDISP_SCREEN_WIDTH;
|
|
g->g.Width = GDISP_SCREEN_HEIGHT;
|
|
break;
|
|
case gOrientation180:
|
|
acquire_bus(g);
|
|
// TODO
|
|
release_bus(g);
|
|
g->g.Height = GDISP_SCREEN_HEIGHT;
|
|
g->g.Width = GDISP_SCREEN_WIDTH;
|
|
break;
|
|
case gOrientation270:
|
|
acquire_bus(g);
|
|
// TODO
|
|
release_bus(g);
|
|
g->g.Height = GDISP_SCREEN_WIDTH;
|
|
g->g.Width = GDISP_SCREEN_HEIGHT;
|
|
break;
|
|
default:
|
|
return;
|
|
}
|
|
g->g.Orientation = (gOrientation)g->p.ptr;
|
|
return;
|
|
#endif
|
|
|
|
case GDISP_CONTROL_BACKLIGHT:
|
|
if ((unsigned)g->p.ptr > 100)
|
|
g->p.ptr = (void *)100;
|
|
acquire_bus(g);
|
|
set_backlight(g, (unsigned)g->p.ptr);
|
|
release_bus(g);
|
|
g->g.Backlight = (unsigned)g->p.ptr;
|
|
return;
|
|
|
|
//case GDISP_CONTROL_CONTRAST:
|
|
default:
|
|
return;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#endif /* GFX_USE_GDISP */
|