fe6aa21e9e
None of this is needed now that mpegplayer is gone. Change-Id: I360366db8513e4d988021e8d7b7d8eb09930efb8
211 lines
5.7 KiB
C
211 lines
5.7 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) 2006 by Barry Wardell
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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 "cpu.h"
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#include "lcd.h"
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#include "kernel.h"
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#include "system.h"
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/* register defines for TL1771 */
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#define R_START_OSC 0x00
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#define R_DEVICE_CODE_READ 0x00
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#define R_DRV_OUTPUT_CONTROL 0x01
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#define R_DRV_AC_CONTROL 0x02
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#define R_ENTRY_MODE 0x03
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#define R_DISP_CONTROL1 0x07
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#define R_DISP_CONTROL2 0x08
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#define R_FRAME_CYCLE_CONTROL 0x0b
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#define R_POWER_CONTROL1 0x10
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#define R_POWER_CONTROL2 0x11
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#define R_POWER_CONTROL3 0x12
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#define R_POWER_CONTROL4 0x13
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#define R_POWER_CONTROL5 0x14
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#define R_RAM_ADDR_SET 0x21
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#define R_WRITE_DATA_2_GRAM 0x22
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#define R_GAMMA_FINE_ADJ_POS1 0x30
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#define R_GAMMA_FINE_ADJ_POS2 0x31
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#define R_GAMMA_FINE_ADJ_POS3 0x32
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#define R_GAMMA_GRAD_ADJ_POS 0x33
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#define R_GAMMA_FINE_ADJ_NEG1 0x34
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#define R_GAMMA_FINE_ADJ_NEG2 0x35
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#define R_GAMMA_FINE_ADJ_NEG3 0x36
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#define R_GAMMA_GRAD_ADJ_NEG 0x37
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#define R_POWER_CONTROL6 0x38
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#define R_GATE_SCAN_START_POS 0x40
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#define R_1ST_SCR_DRV_POS 0x42
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#define R_2ND_SCR_DRV_POS 0x43
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#define R_HORIZ_RAM_ADDR_POS 0x44
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#define R_VERT_RAM_ADDR_POS 0x45
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static inline void lcd_wait_write(void)
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{
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while (LCD2_PORT & LCD2_BUSY_MASK);
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}
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/* Send command */
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static inline void lcd_send_cmd(unsigned v)
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{
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lcd_wait_write();
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LCD2_PORT = LCD2_CMD_MASK;
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LCD2_PORT = LCD2_CMD_MASK | v;
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}
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/* Send 16-bit data */
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static inline void lcd_send_data(unsigned v)
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{
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lcd_wait_write();
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LCD2_PORT = LCD2_DATA_MASK | (v >> 8); /* Send MSB first */
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LCD2_PORT = LCD2_DATA_MASK | (v & 0xff);
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}
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/* Write value to register */
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static void lcd_write_reg(int reg, int val)
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{
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lcd_send_cmd(reg);
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lcd_send_data(val);
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}
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/*** hardware configuration ***/
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void lcd_set_contrast(int val)
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{
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/* TODO: Implement lcd_set_contrast() */
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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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/* TODO: Implement lcd_set_invert_display() */
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(void)yesno;
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}
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/* turn the display upside down (call lcd_update() afterwards) */
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void lcd_set_flip(bool yesno)
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{
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/* TODO: Implement lcd_set_flip() */
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(void)yesno;
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}
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/* LCD init */
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void lcd_init_device(void)
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{
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#ifndef BOOTLOADER
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/* The OF won't boot if this is done in the bootloader - ideally we should
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tweak the lcd controller speed settings but this will do for now */
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CLCD_CLOCK_SRC |= 0xc0000000; /* Set LCD interface clock to PLL */
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#endif
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/* H10 LCD is initialised by the bootloader */
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}
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/*** update functions ***/
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/* Update a fraction of the display. */
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void lcd_update_rect(int x0, int y0, int width, int height)
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{
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int x1, y1;
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int newx,newwidth;
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unsigned long *addr;
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/* Ensure x and width are both even - so we can read 32-bit aligned
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data from lcd_framebuffer */
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newx=x0&~1;
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newwidth=width&~1;
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if (newx+newwidth < x0+width) { newwidth+=2; }
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x0=newx; width=newwidth;
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/* calculate the drawing region */
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y1 = (y0 + height) - 1; /* max vert */
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x1 = (x0 + width) - 1; /* max horiz */
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/* swap max horiz < start horiz */
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if (y1 < y0) {
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int t;
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t = y0;
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y0 = y1;
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y1 = t;
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}
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/* swap max vert < start vert */
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if (x1 < x0) {
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int t;
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t = x0;
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x0 = x1;
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x1 = t;
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}
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/* max horiz << 8 | start horiz */
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lcd_write_reg(R_HORIZ_RAM_ADDR_POS, (x1 << 8) | x0);
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/* max vert << 8 | start vert */
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lcd_write_reg(R_VERT_RAM_ADDR_POS, (y1 << 8) | y0);
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/* start vert << 8 | start horiz */
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lcd_write_reg(R_RAM_ADDR_SET, (y0 << 8) | x0);
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/* start drawing */
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lcd_send_cmd(R_WRITE_DATA_2_GRAM);
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addr = (unsigned long*)FBADDR(x0,y0);
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while (height > 0) {
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int c, r;
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int h, pixels_to_write;
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pixels_to_write = (width * height) * 2;
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h = height;
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/* calculate how much we can do in one go */
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if (pixels_to_write > 0x10000) {
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h = (0x10000/2) / width;
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pixels_to_write = (width * h) * 2;
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}
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LCD2_BLOCK_CTRL = 0x10000080;
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LCD2_BLOCK_CONFIG = 0xc0010000 | (pixels_to_write - 1);
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LCD2_BLOCK_CTRL = 0x34000000;
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/* for each row */
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for (r = 0; r < h; r++) {
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/* for each column */
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for (c = 0; c < width; c += 2) {
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while (!(LCD2_BLOCK_CTRL & LCD2_BLOCK_TXOK));
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/* output 2 pixels */
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LCD2_BLOCK_DATA = *addr++;
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}
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addr += (LCD_WIDTH - width)/2;
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}
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while (!(LCD2_BLOCK_CTRL & LCD2_BLOCK_READY));
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LCD2_BLOCK_CONFIG = 0;
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height -= h;
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}
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}
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/* Update the display.
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This must be called after all other LCD functions that change the display. */
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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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