211 lines
6.3 KiB
C
211 lines
6.3 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2011 Marcin Bukat
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "config.h"
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#include "kernel.h"
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#include "lcd.h"
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#include "system.h"
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#include "cpu.h"
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#include "spfd5420a.h"
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#include "lcdif-rk27xx.h"
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/* TODO: convert to udelay() */
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static inline void delay_nop(int cycles)
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{
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asm volatile ("1: subs %[n], %[n], #1 \n\t"
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" bne 1b"
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:
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: [n] "r" (cycles));
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}
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/* converts RGB565 pixel into internal lcd bus format */
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static unsigned int lcd_pixel_transform(unsigned short rgb565)
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{
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unsigned int r, g, b;
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b = rgb565 & 0x1f;
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g = (rgb565 >> 5) & 0x3f;
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r = (rgb565 >> 11) & 0x1f;
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return r<<19 | g<<10 | b<<3;
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}
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/* not tested */
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static void lcd_sleep(bool sleep)
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{
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if (sleep)
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{
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/* enter sleep mode */
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lcd_write_reg(DISPLAY_CTRL1, 0x0170);
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delay_nop(50);
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lcd_write_reg(DISPLAY_CTRL1, 0x0000);
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delay_nop(50);
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lcd_write_reg(PWR_CTRL1, 0x14B4);
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}
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else
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{
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/* return to normal operation */
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lcd_write_reg(PWR_CTRL1, 0x14B0);
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delay_nop(50);
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lcd_write_reg(DISPLAY_CTRL1, 0x0173);
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}
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lcd_cmd(GRAM_WRITE);
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}
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void lcd_display_init()
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{
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unsigned int x, y;
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lcd_write_reg(RESET, 0x0001);
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delay_nop(10000);
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lcd_write_reg(RESET, 0x0000);
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delay_nop(10000);
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lcd_write_reg(IF_ENDIAN, 0x0000); /* order of receiving data */
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lcd_write_reg(DRIVER_OUT_CTRL, 0x0000);
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lcd_write_reg(ENTRY_MODE, 0x1038);
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lcd_write_reg(WAVEFORM_CTRL, 0x0100);
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lcd_write_reg(SHAPENING_CTRL, 0x0000);
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lcd_write_reg(DISPLAY_CTRL2, 0x0808);
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lcd_write_reg(LOW_PWR_CTRL1, 0x0001);
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lcd_write_reg(LOW_PWR_CTRL2, 0x0010);
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lcd_write_reg(EXT_DISP_CTRL1, 0x0000);
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lcd_write_reg(EXT_DISP_CTRL2, 0x0000);
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lcd_write_reg(BASE_IMG_SIZE, 0x3100);
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lcd_write_reg(BASE_IMG_CTRL, 0x0001);
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lcd_write_reg(VSCROLL_CTRL, 0x0000);
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lcd_write_reg(PART1_POS, 0x0000);
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lcd_write_reg(PART1_START, 0x0000);
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lcd_write_reg(PART1_END, 0x018F);
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lcd_write_reg(PART2_POS, 0x0000);
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lcd_write_reg(PART2_START, 0x0000);
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lcd_write_reg(PART2_END, 0x0000);
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lcd_write_reg(PANEL_IF_CTRL1, 0x0011);
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delay_nop(10000);
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lcd_write_reg(PANEL_IF_CTRL2, 0x0202);
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lcd_write_reg(PANEL_IF_CTRL3, 0x0300);
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delay_nop(10000);
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lcd_write_reg(PANEL_IF_CTRL4, 0x021E);
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lcd_write_reg(PANEL_IF_CTRL5, 0x0202);
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lcd_write_reg(PANEL_IF_CTRL6, 0x0100);
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lcd_write_reg(FRAME_MKR_CTRL, 0x0000);
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lcd_write_reg(MDDI_CTRL, 0x0000);
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lcd_write_reg(GAMMA_CTRL1, 0x0101);
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lcd_write_reg(GAMMA_CTRL2, 0x0000);
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lcd_write_reg(GAMMA_CTRL3, 0x0016);
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lcd_write_reg(GAMMA_CTRL4, 0x2913);
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lcd_write_reg(GAMMA_CTRL5, 0x260B);
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lcd_write_reg(GAMMA_CTRL6, 0x0101);
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lcd_write_reg(GAMMA_CTRL7, 0x1204);
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lcd_write_reg(GAMMA_CTRL8, 0x0415);
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lcd_write_reg(GAMMA_CTRL9, 0x0205);
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lcd_write_reg(GAMMA_CTRL10, 0x0303);
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lcd_write_reg(GAMMA_CTRL11, 0x0E05);
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lcd_write_reg(GAMMA_CTRL12, 0x0D01);
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lcd_write_reg(GAMMA_CTRL13, 0x010D);
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lcd_write_reg(GAMMA_CTRL14, 0x050E);
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lcd_write_reg(GAMMA_CTRL15, 0x0303);
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lcd_write_reg(GAMMA_CTRL16, 0x0502);
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/* power on */
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lcd_write_reg(DISPLAY_CTRL1, 0x0001);
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lcd_write_reg(PWR_CTRL6, 0x0001);
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lcd_write_reg(PWR_CTRL7, 0x0060);
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delay_nop(50000);
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lcd_write_reg(PWR_CTRL1, 0x16B0);
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delay_nop(10000);
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lcd_write_reg(PWR_CTRL2, 0x0147);
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delay_nop(10000);
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lcd_write_reg(PWR_CTRL3, 0x0117);
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delay_nop(10000);
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lcd_write_reg(PWR_CTRL4, 0x2F00);
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delay_nop(50000);
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lcd_write_reg(VCOM_HV2, 0x0000); /* src 0x0090 */
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delay_nop(10000);
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lcd_write_reg(VCOM_HV1, 0x0008); /* src 0x000A */
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lcd_write_reg(PWR_CTRL3, 0x01BE);
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delay_nop(10000);
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/* addresses setup */
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lcd_write_reg(WINDOW_H_START, 0x0000);
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lcd_write_reg(WINDOW_H_END, 0x00EF); /* 239 */
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lcd_write_reg(WINDOW_V_START, 0x0000);
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lcd_write_reg(WINDOW_V_END, 0x018F); /* 399 */
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lcd_write_reg(GRAM_H_ADDR, 0x0000);
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lcd_write_reg(GRAM_V_ADDR, 0x0000);
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/* display on */
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lcd_write_reg(DISPLAY_CTRL1, 0x0021);
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delay_nop(40000);
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lcd_write_reg(DISPLAY_CTRL1, 0x0061);
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delay_nop(100000);
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lcd_write_reg(DISPLAY_CTRL1, 0x0173);
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delay_nop(300000);
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/* clear screen */
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lcd_cmd(GRAM_WRITE);
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for (x=0; x<LCD_WIDTH; x++)
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for(y=0; y<LCD_HEIGHT; y++)
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lcd_data(0x000000);
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lcd_sleep(false);
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}
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void lcd_update_rect(int x, int y, int width, int height)
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{
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int px = x, py = y;
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int pxmax = x + width, pymax = y + height;
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/* addresses setup */
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lcd_write_reg(WINDOW_H_START, y);
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lcd_write_reg(WINDOW_H_END, pymax-1);
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lcd_write_reg(WINDOW_V_START, x);
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lcd_write_reg(WINDOW_V_END, pxmax-1);
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lcd_write_reg(GRAM_H_ADDR, y);
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lcd_write_reg(GRAM_V_ADDR, x);
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lcd_cmd(GRAM_WRITE);
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for (py=y; py<pymax; py++)
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{
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for (px=x; px<pxmax; px++)
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LCD_DATA = lcd_pixel_transform(*FBADDR(px,py));
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}
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}
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/* Blit a YUV bitmap directly to the LCD */
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void lcd_blit_yuv(unsigned char * const src[3],
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int src_x, int src_y, int stride,
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int x, int y, int width, int height)
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{
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(void)src;
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(void)src_x;
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(void)src_y;
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(void)stride;
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(void)x;
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(void)y;
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(void)width;
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(void)height;
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}
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