429 lines
9.8 KiB
C
429 lines
9.8 KiB
C
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/***************************************************************************
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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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* Rockbox driver for Sansa View LCDs
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*
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* Copyright (c) 2009 Robert Keevil
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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 <string.h>
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#include "cpu.h"
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#include "system.h"
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#include "backlight-target.h"
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#include "lcd.h"
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#include "bitmaps/rockboxlogo.h"
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/* Power and display status */
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static bool power_on = false; /* Is the power turned on? */
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static bool display_on SHAREDBSS_ATTR = false; /* Is the display turned on? */
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static unsigned lcd_yuv_options SHAREDBSS_ATTR = 0;
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#define LCD_DATA_OUT_GPIO GPIOH_OUTPUT_VAL
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#define LCD_DATA_OUT_PIN 4
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#define LCD_CLOCK_GPIO GPIOH_OUTPUT_VAL
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#define LCD_CLOCK_PIN 6
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#define LCD_CS_GPIO GPIOH_OUTPUT_VAL
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#define LCD_CS_PIN 7
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#ifdef BOOTLOADER
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static void lcd_init_gpio(void)
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{
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// OF: 0x5CC8
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outl(inl(0x70000010) | 0xFC000000, 0x70000010);
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outl(inl(0x70000014) | 0xC300000, 0x70000014);
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GPIOE_ENABLE = 0;
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/* TODO: check GPIOM exists and isn't just atomic access */
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/* GPIOM_ENABLE &= ~0x3; */
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GPIOJ_ENABLE &= ~0x1a;
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GPIOB_ENABLE &= ~0x8;
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GPIOH_OUTPUT_VAL |= 0x80;
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GPIOH_OUTPUT_EN |= 0x80;
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GPIOH_ENABLE |= 0x80;
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GPIOH_OUTPUT_VAL |= 0x40;
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GPIOH_OUTPUT_EN |= 0x40;
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GPIOH_ENABLE |= 0x40;
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GPIOH_OUTPUT_VAL |= 0x20;
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GPIOH_OUTPUT_EN |= 0x20;
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GPIOH_ENABLE |= 0x20;
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GPIOH_OUTPUT_VAL |= 0x10;
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GPIOH_OUTPUT_EN |= 0x10;
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GPIOH_ENABLE |= 0x10;
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// GPIOD_OUTOUT_VAL &= ~0x1; //backlight on
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// GPIOD_ENABLE |= 0x1;
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GPIOB_OUTPUT_VAL |= 0x4;
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GPIOB_ENABLE |= 0x4;
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GPIOB_OUTPUT_EN |= 0x4;
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GPIOG_ENABLE |= 0x8;
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GPIOG_OUTPUT_EN &= ~0x8;
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// more to add here...
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}
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#endif
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static void lcd_send_msg(unsigned char count, unsigned int data)
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{
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// OF: 0x645C
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int i;
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LCD_CLOCK_GPIO |= (1 << LCD_CLOCK_PIN);
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LCD_CS_GPIO &= ~(1 << LCD_CS_PIN);
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for (i = count - 1; i >= 0; i--)
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{
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if (data & (1 << count))
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{
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// LCD_DATA_OUT_GPIO &= ~(1 << LCD_DATA_OUT_PIN);
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LCD_DATA_OUT_GPIO |= (1 << LCD_DATA_OUT_PIN);
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} else {
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// LCD_DATA_OUT_GPIO |= (1 << LCD_DATA_OUT_PIN);
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LCD_DATA_OUT_GPIO &= ~(1 << LCD_DATA_OUT_PIN);
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}
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LCD_CLOCK_GPIO &= ~(1 << LCD_CLOCK_PIN);
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udelay(1);
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LCD_CLOCK_GPIO |= (1 << LCD_CLOCK_PIN);
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udelay(2);
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}
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LCD_CS_GPIO |= (1 << LCD_CS_PIN);
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LCD_CLOCK_GPIO |= (1 << LCD_CLOCK_PIN);
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udelay(1);
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}
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/*
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static void lcd_write_reg(unsigned int reg, unsigned int data)
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{
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// OF: 0x6278 - referenced from 0x62840
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// So far this function is always called with shift = 0x0 ?
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// If so can remove and simplify
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unsigned int cmd;
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unsigned int shift = 0;
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cmd = shift << 0x2;
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cmd |= 0x70;
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cmd = cmd << 0x10;
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cmd |= reg;
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lcd_send_msg(0x18, cmd);
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cmd = shift << 0x2;
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cmd |= 0x72;
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cmd = cmd << 0x10;
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cmd |= data;
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lcd_send_msg(0x18, cmd);
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// lcd_send_msg(0x70, reg);
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// lcd_send_msg(0x72, data);
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}
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*/
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static void lcd_write_cmd(unsigned int cmd)
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{
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lcd_send_msg(0x18, (0x700000 | cmd));
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}
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static void lcd_write_info(unsigned int data)
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{
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lcd_send_msg(0x18, (0x720000 | data));
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}
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static void lcd_write_reg(unsigned int cmd, unsigned int data)
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{
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lcd_write_cmd(cmd);
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lcd_write_info(data);
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}
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/* Run the powerup sequence for the driver IC */
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static void lcd_power_on(void)
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{
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/* OF: 0x5DC0 *
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* r2: cmd *
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* r3: data */
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lcd_write_reg(0xE5, 0x8000);
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lcd_write_reg(0x0, 0x1);
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lcd_write_reg(0x1, 0x100);
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lcd_write_reg(0x2, 0x700);
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lcd_write_reg(0x3, 0x1230);
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lcd_write_reg(0x4, 0x0);
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lcd_write_reg(0x8, 0x408);
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lcd_write_reg(0x9, 0x0);
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lcd_write_reg(0xa, 0x0);
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lcd_write_reg(0xd, 0x0);
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lcd_write_reg(0xf, 0x2);
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lcd_write_reg(0x10, 0x0);
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lcd_write_reg(0x11, 0x0);
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lcd_write_reg(0x12, 0x0);
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lcd_write_reg(0x13, 0x0);
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sleep(HZ/5);
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lcd_write_reg(0x10, 0x17B0);
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lcd_write_reg(0x11, 0x7);
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sleep(HZ/20);
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lcd_write_reg(0x12, 0x13c);
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sleep(HZ/20);
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// OF: BNE 0x5fb2
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// two different models in use?!?
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if (1)
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{
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lcd_write_reg(0x13, 0x1800);
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lcd_write_reg(0x29, 0x13);
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sleep(HZ/10);
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lcd_write_reg(0x20, 0x0);
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lcd_write_reg(0x21, 0x0);
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lcd_write_reg(0x30, 0x2);
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lcd_write_reg(0x31, 0xF07); // 0x37 option in other controller
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lcd_write_reg(0x32, 0x403); // 0x31 option in other controller
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lcd_write_reg(0x35, 0x206);
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lcd_write_reg(0x36, 0x504);
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lcd_write_reg(0x37, 0x707);
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lcd_write_reg(0x38, 0x403);
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}
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else
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{
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// OF: last func continues, 0x5EFC
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lcd_write_reg(0x13, 0x1700);
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lcd_write_reg(0x29, 0x10);
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sleep(HZ/10);
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lcd_write_reg(0x20, 0x0);
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lcd_write_reg(0x21, 0x0);
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lcd_write_reg(0x30, 0x7);
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lcd_write_reg(0x31, 0x403);
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lcd_write_reg(0x32, 0x400);
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lcd_write_reg(0x35, 0x3);
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lcd_write_reg(0x36, 0xF07);
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lcd_write_reg(0x37, 0x403);
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lcd_write_reg(0x37, 0x106);
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}
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// OF: b 0x6066
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lcd_write_reg(0x39, 0x7);
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lcd_write_reg(0x3c, 0x700);
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lcd_write_reg(0x3d, 0x700);
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lcd_write_reg(0x50, 0x0);
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lcd_write_reg(0x51, 0xef); // 239 - LCD_WIDTH
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lcd_write_reg(0x52, 0x0);
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lcd_write_reg(0x53, 0x13f); // 319 - LCD_HEIGHT
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// OF: b 0x6114
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lcd_write_reg(0x60, 0x2700);
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lcd_write_reg(0x61, 0x1);
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lcd_write_reg(0x6a, 0x0);
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lcd_write_reg(0x80, 0x0);
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lcd_write_reg(0x81, 0x0);
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lcd_write_reg(0x82, 0x0);
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lcd_write_reg(0x83, 0x0);
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lcd_write_reg(0x84, 0x0);
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lcd_write_reg(0x85, 0x0);
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// OF: 0x61A8
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lcd_write_reg(0x90, 0x10);
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lcd_write_reg(0x92, 0x0);
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lcd_write_reg(0x93, 0x3);
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lcd_write_reg(0x95, 0x110);
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lcd_write_reg(0x97, 0x0);
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lcd_write_reg(0x98, 0x0);
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lcd_write_reg(0xc, 0x110);
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lcd_write_reg(0x7, 0x173);
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sleep(HZ/10);
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lcd_write_cmd(0x22);
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power_on = true;
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}
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void unknown01(void)
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{
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// OF: 0x62C4
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lcd_write_reg(0x10, 0x17B0);
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udelay(100);
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lcd_write_reg(0x7, 0x173);
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}
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void unknown02(void)
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{
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// OF: 0x6308
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lcd_write_reg(0x7, 0x160);
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lcd_write_reg(0x10, 0x17B1);
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}
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void unknown03(void)
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{
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// OF: 0x6410
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GPIOJ_ENABLE |= 0x2;
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GPIOJ_OUTPUT_EN |= 0x2;
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GPIOJ_OUTPUT_VAL &= ~0x02;
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}
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void unknown04(void)
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{
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// OF: 0x623C
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GPIOB_OUTPUT_VAL |= 0x4;
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udelay(1000);
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GPIOB_OUTPUT_VAL &= ~0x4;
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sleep(HZ/10);
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GPIOB_OUTPUT_VAL |= 0x4;
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udelay(1000);
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}
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/* Run the display on sequence for the driver IC */
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static void lcd_display_on(void)
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{
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display_on = true;
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}
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#if defined(HAVE_LCD_ENABLE) || defined(HAVE_LCD_SLEEP)
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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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/* Turn off visible display operations */
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static void lcd_display_off(void)
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{
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display_on = false;
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}
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#endif
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void lcd_init_device(void)
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{
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#ifdef BOOTLOADER /* Bother at all to do this again? */
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//#if 0
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/* Init GPIO ports */
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lcd_init_gpio();
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lcd_power_on();
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lcd_display_on();
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#else
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power_on = true;
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display_on = true;
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lcd_set_invert_display(false);
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lcd_set_flip(false);
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#endif
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}
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#if defined(HAVE_LCD_ENABLE)
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void lcd_enable(bool on)
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{
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(void)on;
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}
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#endif
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#if defined(HAVE_LCD_SLEEP)
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void lcd_sleep(void)
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{
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}
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#endif
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void lcd_update(void)
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{
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const fb_data *addr;
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addr = &lcd_framebuffer[LCD_HEIGHT][LCD_WIDTH];
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lcd_write_reg(0x20, 0x0);
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lcd_write_reg(0x21, 0x0);
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int i,j;
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for(i=0; i < LCD_HEIGHT; i++)
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{
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for(j=0; j < LCD_WIDTH; j++)
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{
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lcd_write_reg(0x22, *addr);
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addr++;
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}
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}
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}
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/* Update a fraction of the display. */
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void lcd_update_rect(int x, int y, int width, int height)
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{
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(void)x;
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(void)y;
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(void)width;
|
||
|
|
(void)height;
|
||
|
|
lcd_update();
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/*** hardware configuration ***/
|
||
|
|
|
||
|
|
void lcd_set_contrast(int val)
|
||
|
|
{
|
||
|
|
(void)val;
|
||
|
|
}
|
||
|
|
|
||
|
|
void lcd_set_invert_display(bool yesno)
|
||
|
|
{
|
||
|
|
(void)yesno;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* turn the display upside down (call lcd_update() afterwards) */
|
||
|
|
void lcd_set_flip(bool yesno)
|
||
|
|
{
|
||
|
|
(void)yesno;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Blitting functions */
|
||
|
|
|
||
|
|
void lcd_yuv_set_options(unsigned options)
|
||
|
|
{
|
||
|
|
lcd_yuv_options = options;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Line write helper function for lcd_yuv_blit. Write two lines of yuv420. */
|
||
|
|
extern void lcd_write_yuv420_lines(fb_data *dst,
|
||
|
|
unsigned char const * const src[3],
|
||
|
|
int width,
|
||
|
|
int stride);
|
||
|
|
extern void lcd_write_yuv420_lines_odither(fb_data *dst,
|
||
|
|
unsigned char const * const src[3],
|
||
|
|
int width,
|
||
|
|
int stride,
|
||
|
|
int x_screen, /* To align dither pattern */
|
||
|
|
int y_screen);
|
||
|
|
|
||
|
|
void lcd_blit_yuv(unsigned char * const src[3],
|
||
|
|
int src_x, int src_y, int stride,
|
||
|
|
int x, int y, int width, int height)
|
||
|
|
{
|
||
|
|
(void)src;
|
||
|
|
(void)src_x;
|
||
|
|
(void)src_y;
|
||
|
|
(void)stride;
|
||
|
|
(void)x;
|
||
|
|
(void)y;
|
||
|
|
(void)width;
|
||
|
|
(void)height;
|
||
|
|
}
|