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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/SSD1289/gdisp_lld.c
* @brief GDISP Graphics Driver subsystem low level driver source for the SSD1289 display.
*
* @addtogroup GDISP
* @{
*/
#include "gfx.h"
#if GFX_USE_GDISP /*|| defined(__DOXYGEN__)*/
#define GDISP_LLD_DECLARATIONS
#include "gdisp/lld/gdisp_lld.h"
/*===========================================================================*/
/* Driver local definitions. */
/*===========================================================================*/
#ifndef GDISP_SCREEN_HEIGHT
#define GDISP_SCREEN_HEIGHT 320
#endif
#ifndef GDISP_SCREEN_WIDTH
#define GDISP_SCREEN_WIDTH 240
#endif
#define GDISP_INITIAL_CONTRAST 50
#define GDISP_INITIAL_BACKLIGHT 100
/*===========================================================================*/
/* Driver local functions. */
/*===========================================================================*/
#include "gdisp_lld_board.h"
// Some common routines and macros
#define write_reg(reg, data) { write_index(reg); write_data(data); }
#define stream_start() write_index(0x0022);
#define stream_stop()
#define delay(us) gfxSleepMicroseconds(us)
#define delayms(ms) gfxSleepMilliseconds(ms)
static void set_viewport(GDISPDriver* g) {
/* Reg 0x44 - Horizontal RAM address position
* Upper Byte - HEA
* Lower Byte - HSA
* 0 <= HSA <= HEA <= 0xEF
* Reg 0x45,0x46 - Vertical RAM address position
* Lower 9 bits gives 0-511 range in each value
* 0 <= Reg(0x45) <= Reg(0x46) <= 0x13F
*/
/* Reg 0x004E is an 8 bit value
* Reg 0x004F is 9 bit
* Use a bit mask to make sure they are not set too high
*/
switch(g->g.Orientation) {
case GDISP_ROTATE_0:
write_reg(0x44, (((g->p.x+g->p.cx-1) << 8) & 0xFF00 ) | (g->p.x & 0x00FF));
write_reg(0x45, g->p.y & 0x01FF);
write_reg(0x46, (g->p.y+g->p.cy-1) & 0x01FF);
write_reg(0x004e, g->p.x & 0x00FF);
write_reg(0x004f, g->p.y & 0x01FF);
break;
case GDISP_ROTATE_90:
write_reg(0x44, (((g->p.y+g->p.cy-1) << 8) & 0xFF00 ) | (g->p.y & 0x00FF));
write_reg(0x45, (GDISP_SCREEN_HEIGHT-(g->p.x+g->p.cx)) & 0x01FF);
write_reg(0x46, (GDISP_SCREEN_HEIGHT-1-g->p.x) & 0x01FF);
write_reg(0x004e, g->p.y & 0x00FF);
write_reg(0x004f, (GDISP_SCREEN_HEIGHT-1-g->p.x) & 0x01FF);
break;
case GDISP_ROTATE_180:
write_reg(0x44, (((GDISP_SCREEN_WIDTH-g->p.x-1) & 0x00FF) << 8) | ((GDISP_SCREEN_WIDTH - (g->p.x+g->p.cx)) & 0x00FF));
write_reg(0x45, (GDISP_SCREEN_HEIGHT-(g->p.y+g->p.cy)) & 0x01FF);
write_reg(0x46, (GDISP_SCREEN_HEIGHT-g->p.y-1) & 0x01FF);
write_reg(0x004e, (GDISP_SCREEN_WIDTH-1-g->p.x) & 0x00FF);
write_reg(0x004f, (GDISP_SCREEN_HEIGHT-1-g->p.y) & 0x01FF);
break;
case GDISP_ROTATE_270:
write_cmd2(PASET, GDISP_RAM_Y_OFFSET+g->p.x, GDISP_RAM_Y_OFFSET+g->p.x+g->p.cx-1);
write_reg(0x44, (((GDISP_SCREEN_WIDTH-1-g->p.y) & 0x00FF) << 8) | ((GDISP_SCREEN_WIDTH-(g->p.y+g->p.cy)) & 0x00FF));
write_reg(0x45, g->p.x & 0x01FF);
write_reg(0x46, (g->p.x+g->p.cx-1) & 0x01FF);
write_reg(0x004e, (GDISP_SCREEN_WIDTH-1-g->p.y) & 0x00FF);
write_reg(0x004f, g->p.x & 0x01FF);
break;
}
}
/*===========================================================================*/
/* Driver interrupt handlers. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver exported functions. */
/*===========================================================================*/
LLDSPEC bool_t gdisp_lld_init(GDISPDriver *g) {
/* Initialise your display */
init_board();
// Hardware reset
setpin_reset(TRUE);
delayms(20);
setpin_reset(FALSE);
delayms(20);
// Get the bus for the following initialisation commands
acquire_bus();
write_reg(0x0000,0x0001); delay(5);
write_reg(0x0003,0xA8A4); delay(5);
write_reg(0x000C,0x0000); delay(5);
write_reg(0x000D,0x080C); delay(5);
write_reg(0x000E,0x2B00); delay(5);
write_reg(0x001E,0x00B0); delay(5);
write_reg(0x0001,0x2B3F); delay(5);
write_reg(0x0002,0x0600); delay(5);
write_reg(0x0010,0x0000); delay(5);
write_reg(0x0011,0x6070); delay(5);
write_reg(0x0005,0x0000); delay(5);
write_reg(0x0006,0x0000); delay(5);
write_reg(0x0016,0xEF1C); delay(5);
write_reg(0x0017,0x0003); delay(5);
write_reg(0x0007,0x0133); delay(5);
write_reg(0x000B,0x0000); delay(5);
write_reg(0x000F,0x0000); delay(5);
write_reg(0x0041,0x0000); delay(5);
write_reg(0x0042,0x0000); delay(5);
write_reg(0x0048,0x0000); delay(5);
write_reg(0x0049,0x013F); delay(5);
write_reg(0x004A,0x0000); delay(5);
write_reg(0x004B,0x0000); delay(5);
write_reg(0x0044,0xEF00); delay(5);
write_reg(0x0045,0x0000); delay(5);
write_reg(0x0046,0x013F); delay(5);
write_reg(0x0030,0x0707); delay(5);
write_reg(0x0031,0x0204); delay(5);
write_reg(0x0032,0x0204); delay(5);
write_reg(0x0033,0x0502); delay(5);
write_reg(0x0034,0x0507); delay(5);
write_reg(0x0035,0x0204); delay(5);
write_reg(0x0036,0x0204); delay(5);
write_reg(0x0037,0x0502); delay(5);
write_reg(0x003A,0x0302); delay(5);
write_reg(0x003B,0x0302); delay(5);
write_reg(0x0023,0x0000); delay(5);
write_reg(0x0024,0x0000); delay(5);
write_reg(0x0025,0x8000); delay(5);
write_reg(0x004f,0x0000); delay(5);
write_reg(0x004e,0x0000); delay(5);
// Release the bus
release_bus();
/* Turn on the back-light */
set_backlight(GDISP_INITIAL_BACKLIGHT);
/* Initialise the GDISP structure */
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(GDISPDriver *g) {
acquire_bus();
set_viewport(g);
stream_start();
}
LLDSPEC void gdisp_lld_write_color(GDISPDriver *g) {
write_data(g->p.color);
}
LLDSPEC void gdisp_lld_write_stop(GDISPDriver *g) {
stream_stop();
release_bus();
}
#endif
#if GDISP_HARDWARE_STREAM_READ
LLDSPEC void gdisp_lld_read_start(GDISPDriver *g) {
uint16_t dummy;
acquire_bus();
set_viewport(g);
stream_start();
setreadmode();
dummy = read_data(); // dummy read
}
LLDSPEC color_t gdisp_lld_read_color(GDISPDriver *g) {
return read_data();
}
LLDSPEC void gdisp_lld_read_stop(GDISPDriver *g) {
setwritemode();
stream_stop();
release_bus();
}
#endif
#if GDISP_HARDWARE_FILLS && defined(GDISP_USE_DMA)
LLDSPEC void gdisp_lld_fill_area(GDISPDriver *g) {
acquire_bus();
set_viewport(g);
stream_start();
dma_with_noinc(&color, g->p.cx*g->p.cy)
stream_stop();
release_bus();
}
#endif
#if GDISP_HARDWARE_BITFILLS && defined(GDISP_USE_DMA)
LLDSPEC void gdisp_lld_blit_area(GDISPDriver *g) {
pixel_t *buffer;
coord_t ycnt;
buffer = (pixel_t *)g->p.ptr + g->p.x1 + g->p.y1 * g->p.x2;
acquire_bus();
set_viewport(g);
stream_start();
if (g->p.x2 == g->p.cx) {
dma_with_inc(buffer, g->p.cx*g->p.cy);
} else {
for (ycnt = g->p.cy; ycnt; ycnt--, buffer += g->p.x2)
dma_with_inc(buffer, g->p.cy);
}
stream_stop();
release_bus();
}
#endif
#if GDISP_NEED_CONTROL && GDISP_HARDWARE_CONTROL
LLDSPEC void gdisp_lld_control(GDISPDriver *g) {
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();
write_reg(0x0010, 0x0000); // leave sleep mode
write_reg(0x0007, 0x0000); // halt operation
write_reg(0x0000, 0x0000); // turn off oscillator
write_reg(0x0010, 0x0001); // enter sleep mode
release_bus();
break;
case powerOn:
acquire_bus();
write_reg(0x0010, 0x0000); // leave sleep mode
release_bus();
if (g->g.Powermode != powerSleep)
gdisp_lld_init();
break;
case powerSleep:
acquire_bus();
write_reg(0x0010, 0x0001); // enter sleep mode
release_bus();
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();
write_reg(0x0001, 0x2B3F);
/* ID = 11 AM = 0 */
write_reg(0x0011, 0x6070);
release_bus();
g->g.Height = GDISP_SCREEN_HEIGHT;
g->g.Width = GDISP_SCREEN_WIDTH;
break;
case GDISP_ROTATE_90:
acquire_bus();
write_reg(0x0001, 0x293F);
/* ID = 01 AM = 1 */
write_reg(0x0011, 0x6048);
release_bus();
g->g.Height = GDISP_SCREEN_WIDTH;
g->g.Width = GDISP_SCREEN_HEIGHT;
break;
case GDISP_ROTATE_180:
acquire_bus();
write_reg(0x0001, 0x2B3F);
/* ID = 01 AM = 0 */
write_reg(0x0011, 0x6040);
release_bus();
g->g.Height = GDISP_SCREEN_HEIGHT;
g->g.Width = GDISP_SCREEN_WIDTH;
break;
case GDISP_ROTATE_270:
acquire_bus();
write_reg(0x0001, 0x293F);
/* ID = 11 AM = 1 */
write_reg(0x0011, 0x6078);
release_bus();
g->g.Height = GDISP_SCREEN_WIDTH;
g->g.Width = GDISP_SCREEN_HEIGHT;
break;
default:
return;
}
g->g.Orientation = (orientation_t)value;
return;
case GDISP_CONTROL_BACKLIGHT:
if ((unsigned)g->p.ptr > 100)
g->p.ptr = (void *)100;
set_backlight((unsigned)g->p.ptr);
g->g.Backlight = (unsigned)g->p.ptr;
return;
//case GDISP_CONTROL_CONTRAST:
default:
return;
}
}
#endif
#endif /* GFX_USE_GDISP */
/** @} */
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