260 lines
6.9 KiB
C
260 lines
6.9 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) 2004 by Linus Nielsen Feltzing
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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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/*
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Thanks Hein-Pieter van Braam for initial work.
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Mostly based on lcd-h300.c, adapted for the iaudio 7 by Vitja Makarov
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*/
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#include <config.h>
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#include <kernel.h>
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#include <cpu.h>
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#include <lcd.h>
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#include <system-target.h>
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#include <panic.h>
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#include "hd66789r.h"
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static bool display_on = false; /* is the display turned on? */
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static inline void lcd_write_reg(int reg, int data)
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{
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GPIOA &= ~0x400;
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outw(0, 0x50010000);
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outw(reg << 1, 0x50010000);
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GPIOA |= 0x400;
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outw((data & 0xff00) >> 7, 0x50010008);
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outw((data << 24) >> 23, 0x50010008);
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}
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static void lcd_write_cmd(int reg)
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{
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GPIOA &= ~0x400;
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outw(0, 0x50010000);
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outw(reg << 1, 0x50010000);
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GPIOA |= 0x400;
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}
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/* Do what OF do */
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static void lcd_delay(int x)
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{
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int i;
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x *= 0xc35;
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for (i = 0; i < x * 8; i++) {
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}
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}
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static void _display_on(void)
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{
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GPIOA_DIR |= 0x8000 | 0x400;
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GPIOA |= 0x8000;
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/* power setup */
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lcd_write_reg(R_START_OSC, 0x0001);
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lcd_delay(0xf);
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lcd_write_reg(R_DISP_CONTROL1, 0x000);
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lcd_delay(0xa);
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lcd_write_reg(R_POWER_CONTROL2, 0x0002);
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lcd_write_reg(R_POWER_CONTROL3, 0x000a);
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lcd_write_reg(R_POWER_CONTROL4, 0xc5a);
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lcd_write_reg(R_POWER_CONTROL1, 0x0004);
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lcd_write_reg(R_POWER_CONTROL1, 0x0134);
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lcd_write_reg(R_POWER_CONTROL2, 0x0111);
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lcd_write_reg(R_POWER_CONTROL3, 0x001c);
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lcd_delay(0x28);
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lcd_write_reg(R_POWER_CONTROL4, 0x2c40);
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lcd_write_reg(R_POWER_CONTROL1, 0x0510);
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lcd_delay(0x3c);
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/* lcd init 2 */
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lcd_write_reg(R_DRV_OUTPUT_CONTROL, 0x0113);
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lcd_write_reg(R_DRV_WAVEFORM_CONTROL, 0x0700);
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lcd_write_reg(R_ENTRY_MODE, 0x1038);
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lcd_write_reg(R_DISP_CONTROL2, 0x0508); // 0x3c8, TMM
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lcd_write_reg(R_DISP_CONTROL3, 0x0000);
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lcd_write_reg(R_FRAME_CYCLE_CONTROL, 0x0003);
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lcd_write_reg(R_RAM_ADDR_SET, 0x0000);
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lcd_write_reg(R_GAMMA_FINE_ADJ_POS1, 0x0406);
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lcd_write_reg(R_GAMMA_FINE_ADJ_POS2, 0x0303);
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lcd_write_reg(R_GAMMA_FINE_ADJ_POS3, 0x0000);
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lcd_write_reg(R_GAMMA_GRAD_ADJ_POS, 0x0305);
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lcd_write_reg(R_GAMMA_FINE_ADJ_NEG1, 0x0404);
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lcd_write_reg(R_GAMMA_FINE_ADJ_NEG2, 0x0000);
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lcd_write_reg(R_GAMMA_FINE_ADJ_NEG3, 0x0000);
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lcd_write_reg(R_GAMMA_GRAD_ADJ_NEG, 0x0503);
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lcd_write_reg(R_GAMMA_AMP_ADJ_RES_POS, 0x1d05);
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lcd_write_reg(R_GAMMA_AMP_AVG_ADJ_RES_NEG, 0x1d05);
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lcd_write_reg(R_VERT_SCROLL_CONTROL, 0x0000);
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lcd_write_reg(R_1ST_SCR_DRV_POS, 0x9f00);
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lcd_write_reg(R_2ND_SCR_DRV_POS, 0x9f00);
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lcd_write_reg(R_HORIZ_RAM_ADDR_POS, 0x7f00);
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lcd_write_reg(R_VERT_RAM_ADDR_POS, 0x9f00);
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/* lcd init 3 */
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lcd_write_reg(R_POWER_CONTROL1, 0x4510);
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lcd_write_reg(R_DISP_CONTROL1, 0x0005);
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lcd_delay(0x28);
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lcd_write_reg(R_DISP_CONTROL1, 0x0025);
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lcd_write_reg(R_DISP_CONTROL1, 0x0027);
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lcd_delay(0x28);
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lcd_write_reg(R_DISP_CONTROL1, 0x0037);
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display_on = true;
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}
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void lcd_init_device(void)
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{
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/* Configure external memory banks */
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CSCFG1 = 0x0d500023 | tcc77x_cscfg_bw(TCC77X_CSCFG_BW16);
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/* may be reset */
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GPIOA |= 0x8000;
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_display_on();
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}
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void lcd_enable(bool on)
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{
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if (display_on == on)
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return;
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if (on) {
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_display_on();
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send_event(LCD_EVENT_ACTIVATION, NULL);
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} else {
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/** Off sequence according to datasheet, p. 130 **/
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lcd_write_reg(R_FRAME_CYCLE_CONTROL, 0x0002); /* EQ=0, 18 clks/line */
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lcd_write_reg(R_DISP_CONTROL1, 0x0036); /* GON=1, DTE=1, REV=1, D1-0=10 */
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sleep(2);
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lcd_write_reg(R_DISP_CONTROL1, 0x0026); /* GON=1, DTE=0, REV=1, D1-0=10 */
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sleep(2);
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lcd_write_reg(R_DISP_CONTROL1, 0x0000); /* GON=0, DTE=0, D1-0=00 */
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lcd_write_reg(R_POWER_CONTROL1, 0x0000); /* SAP2-0=000, AP2-0=000 */
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lcd_write_reg(R_POWER_CONTROL3, 0x0000); /* PON=0 */
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lcd_write_reg(R_POWER_CONTROL4, 0x0000); /* VCOMG=0 */
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/* datasheet p. 131 */
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lcd_write_reg(R_POWER_CONTROL1, 0x0001); /* STB=1: standby mode */
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display_on = false;
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}
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}
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bool lcd_active(void)
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{
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return display_on;
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}
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#define RGB(r,g,b) ((((r)&0x3f) << 12)|(((g)&0x3f) << 6)|(((b)&0x3f)))
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void lcd_update(void)
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{
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lcd_update_rect(0, 0, LCD_WIDTH, LCD_HEIGHT);
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}
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/* todo: need tests */
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void lcd_update_rect(int sx, int sy, int width, int height)
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{
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int x, y;
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if (!display_on)
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return;
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if (width <= 0 || height <= 0) /* nothing to do */
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return;
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width += sx;
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height += sy;
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if (width > LCD_WIDTH)
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width = LCD_WIDTH;
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if (height > LCD_HEIGHT)
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height = LCD_HEIGHT;
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lcd_write_reg(R_ENTRY_MODE, 0x1028);
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/* set update window */
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lcd_write_reg(R_HORIZ_RAM_ADDR_POS, (LCD_HEIGHT - 1) << 8);
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lcd_write_reg(R_VERT_RAM_ADDR_POS, ((width - 1) << 8) | sx);
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lcd_write_reg(R_RAM_ADDR_SET, (sx << 8) | (LCD_HEIGHT - sy - 1));
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lcd_write_cmd(R_WRITE_DATA_2_GRAM);
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for (y = sy; y < height; y++) {
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for (x = sx; x < width; x++) {
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fb_data c;
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unsigned long color;
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c = *FBADDR(x,y);
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color =
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((c & 0x1f) << 1) | ((c & 0x7e0) << 1) | ((c & 0xf800) <<
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2);
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/* TODO: our color is 18-bit */
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outw((color >> 9) & 0x1ff, 0x50010008);
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outw((color) & 0x1ff, 0x50010008);
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}
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}
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}
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void lcd_set_contrast(int val)
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{
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(void) val;
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}
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void lcd_set_invert_display(bool yesno)
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{
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(void) yesno;
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}
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void lcd_set_flip(bool yesno)
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{
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(void) yesno;
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}
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/* TODO: implement me */
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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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if (!display_on)
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return;
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width &= ~1; /* stay on the safe side */
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height &= ~1;
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panicf("%s", __func__);
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}
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