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ugfx/drivers/gdisp/Nokia6610GE12/gdisp_lld_Nokia6610GE12.c
inmarket a8e860678d New GDISP now supports multiple controllers with different pixel formats. 
You can now have a main color display and a secondary monochrome display.
You can now optionally set GDISP_PIXELFORMAT to any color or grayscale format for your application and the driver will internally convert to the display hardware format.
2013-11-05 19:34:12 +10:00

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/*
* 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.org/license.html
*/
/**
* @file drivers/gdisp/Nokia6610GE12/gdisp_lld.c
* @brief GDISP Graphics Driver subsystem low level driver source for the Nokia6610 GE12 display.
*/
#include "gfx.h"
#if GFX_USE_GDISP
#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_DRIVER_VMT GDISPVMT_Nokia6610GE12
#include "../drivers/gdisp/Nokia6610GE12/gdisp_lld_config.h"
#include "gdisp/lld/gdisp_lld.h"
#include "board_Nokia6610GE12.h"
/*===========================================================================*/
/* Driver local definitions. */
/*===========================================================================*/
#include "GE12.h"
#define GDISP_SCAN_LINES 132
#define GDISP_SLEEP_SIZE 32 /* Sleep mode window lines - this must be 32 on this controller */
// Set parameters if they are not already set
#ifndef GDISP_SCREEN_HEIGHT
#define GDISP_SCREEN_HEIGHT 130
#endif
#ifndef GDISP_SCREEN_WIDTH
#define GDISP_SCREEN_WIDTH 130
#endif
#ifndef GDISP_RAM_X_OFFSET
#define GDISP_RAM_X_OFFSET 0 /* Offset in RAM of visible area */
#endif
#ifndef GDISP_RAM_Y_OFFSET
#define GDISP_RAM_Y_OFFSET 2 /* Offset in RAM of visible area */
#endif
#ifndef GDISP_SLEEP_POS
#define GDISP_SLEEP_POS ((GDISP_SCAN_LINES-GDISP_SLEEP_SIZE)/2 & ~3)
#endif
#ifndef GDISP_INITIAL_CONTRAST
#define GDISP_INITIAL_CONTRAST 50
#endif
#ifndef GDISP_INITIAL_BACKLIGHT
#define GDISP_INITIAL_BACKLIGHT 100
#endif
/*===========================================================================*/
/* Driver exported variables. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver local variables. */
/*===========================================================================*/
// Use the priv pointer itself to save our color. This save allocating ram for it
// and works provided sizeof(uint16_t) <= sizeof(void *)
#define savecolor(g) (*(uint16_t *)&g->priv)
#define GDISP_FLG_ODDBYTE (GDISP_FLG_DRIVER<<0)
/*===========================================================================*/
/* Driver local functions. */
/*===========================================================================*/
// Some macros just to make reading the code easier
#define delayms(ms) gfxSleepMilliseconds(ms)
#define write_data2(g, d1, d2) { write_data(g, d1); write_data(g, d2); }
#define write_data3(g, d1, d2, d3) { write_data(g, d1); write_data(g, d2); write_data(g, d3); }
#define write_reg(g, cmd, d1) { write_index(g, cmd); write_data(g, d1); }
#define write_reg2(g, cmd, d1, d2) { write_index(g, cmd); write_data2(g, d1, d2); }
#define write_reg3(g, cmd, d1, d2, d3) { write_index(g, cmd); write_data3(g, d1, d2, d3); }
static inline void set_viewport(GDisplay* g) {
write_reg2(g, CASET, GDISP_RAM_X_OFFSET+g->p.x, GDISP_RAM_X_OFFSET+g->p.x+g->p.cx-1); // Column address set
write_reg2(g, PASET, GDISP_RAM_Y_OFFSET+g->p.y, GDISP_RAM_Y_OFFSET+g->p.y+g->p.cy-1); // Page address set
write_index(g, RAMWR);
}
/*===========================================================================*/
/* Driver exported functions. */
/*===========================================================================*/
LLDSPEC bool_t 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, TRUE);
delayms(20);
setpin_reset(g, FALSE);
delayms(20);
acquire_bus(g);
write_index(g, SLEEPOUT); // Sleep out
write_reg(g, COLMOD, 0x03); // Color Interface Pixel Format - 0x03 = 12 bits-per-pixel
write_reg(g, MADCTL, 0x00); // Memory access controller
write_reg(g, SETCON, 128*GDISP_INITIAL_CONTRAST/101-64); // Write contrast
delayms(20);
// Finish Init
post_init_board(g);
release_bus(g);
/* Turn on the back-light */
set_backlight(g, GDISP_INITIAL_BACKLIGHT);
/* Initialise the GDISP structure to match */
g->g.Width = GDISP_SCREEN_WIDTH;
g->g.Height = GDISP_SCREEN_HEIGHT;
g->g.Orientation = GDISP_ROTATE_0;
g->g.Powermode = powerOn;
g->g.Backlight = GDISP_INITIAL_BACKLIGHT;
g->g.Contrast = GDISP_INITIAL_CONTRAST;
return TRUE;
}
#if GDISP_HARDWARE_STREAM_WRITE
LLDSPEC void gdisp_lld_write_start(GDisplay *g) {
acquire_bus(g);
set_viewport(g);
g->flags &= ~GDISP_FLG_ODDBYTE;
}
LLDSPEC void gdisp_lld_write_color(GDisplay *g) {
uint16_t c;
c = COLOR2NATIVE(g->p.color);
if ((g->flags & GDISP_FLG_ODDBYTE)) {
// Write the pair of pixels to the display
write_data3(g, ((savecolor(g) >> 4) & 0xFF),
(((savecolor(g) << 4) & 0xF0)|((c >> 8) & 0x0F)),
(c & 0xFF));
g->flags &= ~GDISP_FLG_ODDBYTE;
} else {
savecolor(g) = c;
g->flags |= GDISP_FLG_ODDBYTE;
}
}
LLDSPEC void gdisp_lld_write_stop(GDisplay *g) {
if ((g->flags & GDISP_FLG_ODDBYTE)) {
write_data2(g, ((savecolor(g) >> 4) & 0xFF), ((savecolor(g) << 4) & 0xF0));
write_index(g, NOP);
}
release_bus(g);
}
#endif
#if GDISP_NEED_CONTROL && GDISP_HARDWARE_CONTROL
LLDSPEC void gdisp_lld_control(GDisplay *g) {
/* The hardware is capable of supporting...
* GDISP_CONTROL_POWER - supported
* GDISP_CONTROL_ORIENTATION - supported
* GDISP_CONTROL_BACKLIGHT - supported
* GDISP_CONTROL_CONTRAST - supported
*/
switch(g->p.x) {
case GDISP_CONTROL_POWER:
if (g->g.Powermode == (powermode_t)g->p.ptr)
return;
switch((powermode_t)g->p.ptr) {
case powerOff:
acquire_bus(g);
write_index(g, SLEEPIN);
release_bus(g);
break;
case powerOn:
acquire_bus(g);
write_index(g, SLEEPOUT);
delayms(20);
write_index(g, NORON); // Set Normal mode (my)
release_bus(g);
break;
case powerSleep:
acquire_bus(g);
write_index(g, SLEEPOUT);
delayms(20);
write_reg2(g, PTLAR, GDISP_SLEEP_POS, GDISP_SLEEP_POS+GDISP_SLEEP_SIZE)
write_index(g, PTLON);
release_bus(g);
break;
default:
return;
}
g->g.Powermode = (powermode_t)g->p.ptr;
return;
case GDISP_CONTROL_ORIENTATION:
if (g->g.Orientation == (orientation_t)g->p.ptr)
return;
switch((orientation_t)g->p.ptr) {
case GDISP_ROTATE_0:
acquire_bus(g);
write_reg(g, MADCTL, 0x00);
release_bus(g);
g->g.Height = GDISP_SCREEN_HEIGHT;
g->g.Width = GDISP_SCREEN_WIDTH;
break;
case GDISP_ROTATE_90:
acquire_bus(g);
write_reg(g, MADCTL, 0xA0); // MY, MX, V, LAO, RGB, X, X, X
release_bus(g);
g->g.Height = GDISP_SCREEN_WIDTH;
g->g.Width = GDISP_SCREEN_HEIGHT;
break;
case GDISP_ROTATE_180:
acquire_bus(g);
write_reg(g, MADCTL, 0xC0);
release_bus(g);
g->g.Height = GDISP_SCREEN_HEIGHT;
g->g.Width = GDISP_SCREEN_WIDTH;
break;
case GDISP_ROTATE_270:
acquire_bus(g);
write_reg(g, MADCTL, 0x60);
release_bus(g);
g->g.Height = GDISP_SCREEN_WIDTH;
g->g.Width = GDISP_SCREEN_HEIGHT;
break;
default:
return;
}
g->g.Orientation = (orientation_t)g->p.ptr;
return;
case GDISP_CONTROL_BACKLIGHT:
if ((unsigned)g->p.ptr > 100) g->p.ptr = (void *)100;
set_backlight(g, (unsigned)g->p.ptr);
g->g.Backlight = (unsigned)g->p.ptr;
return;
case GDISP_CONTROL_CONTRAST:
if ((unsigned)g->p.ptr > 100) g->p.ptr = (void *)100;
acquire_bus(g);
write_reg(g, SETCON,(unsigned)128*(unsigned)g->p.ptr/101-64);
release_bus(g);
g->g.Contrast = (unsigned)g->p.ptr;
return;
}
}
#endif
#endif /* GFX_USE_GDISP */
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