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//
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//
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// Copyright 2010 TheSeven
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//
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//
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// This file is part of emCORE.
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//
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// emCORE is free software: you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation, either version 2 of the
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// License, or (at your option) any later version.
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//
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// emCORE is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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// See the GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License along
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// with emCORE. If not, see <http://www.gnu.org/licenses/>.
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//
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//
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#include "global.h"
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#include "thread.h"
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#include "s5l8720.h"
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#include "util.h"
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#include "clockgates-target.h"
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#include "lcd.h"
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static struct dma_lli lcd_lli[(LCD_WIDTH * LCD_HEIGHT - 1) / 0xfff]
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IDATA_ATTR __attribute__((aligned(16)));
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static uint16_t lcd_color IDATA_ATTR;
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static struct mutex lcd_mutex IDATA_ATTR;
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static struct wakeup lcd_wakeup IDATA_ATTR;
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static bool lcd_dma_busy IDATA_ATTR;
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void lcd_init()
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{
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mutex_init(&lcd_mutex);
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wakeup_init(&lcd_wakeup);
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lcd_dma_busy = true;
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clockgate_dma(0, 4, true);
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if (!(DMAC0C4CONFIG & 1))
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{
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lcd_dma_busy = false;
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clockgate_dma(0, 4, false);
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}
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}
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int lcd_get_width()
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{
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return LCD_WIDTH;
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}
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int lcd_get_height()
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{
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return LCD_HEIGHT;
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}
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int lcd_get_bytes_per_pixel()
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{
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return LCD_BYTESPERPIXEL;
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}
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int lcd_get_format()
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{
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return LCD_FORMAT;
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}
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static void lcd_send_cmd(uint16_t cmd) ICODE_ATTR __attribute__((noinline));
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static void lcd_send_cmd(uint16_t cmd)
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{
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while (LCDSTATUS & 0x10);
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LCDWCMD = cmd;
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}
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static void lcd_send_data(uint16_t data) ICODE_ATTR __attribute__((noinline));
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static void lcd_send_data(uint16_t data)
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{
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while (LCDSTATUS & 0x10);
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LCDWDATA = (data & 0xff) | ((data & 0x7f00) << 1);
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}
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void lcd_shutdown()
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{
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}
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bool displaylcd_busy() ICODE_ATTR;
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bool displaylcd_busy()
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{
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return lcd_dma_busy;
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}
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void displaylcd_sync() ICODE_ATTR;
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void displaylcd_sync()
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{
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mutex_lock(&lcd_mutex, TIMEOUT_BLOCK);
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while (displaylcd_busy()) wakeup_wait(&lcd_wakeup, TIMEOUT_BLOCK);
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mutex_unlock(&lcd_mutex);
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}
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void displaylcd_setup(unsigned int startx, unsigned int endx,
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unsigned int starty, unsigned int endy, bool safe) ICODE_ATTR;
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void displaylcd_setup(unsigned int startx, unsigned int endx,
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unsigned int starty, unsigned int endy, bool safe)
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{
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if (!safe)
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{
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mutex_lock(&lcd_mutex, TIMEOUT_BLOCK);
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displaylcd_sync();
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}
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else while (DMAC0C4CONFIG & 1);
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lcd_send_cmd(0x2a);
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lcd_send_data(startx);
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lcd_send_data(endx);
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lcd_send_cmd(0x2b);
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lcd_send_data(starty);
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lcd_send_data(endy);
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lcd_send_cmd(0x2c);
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}
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static void displaylcd_dma(void* data, int pixels, bool solid) ICODE_ATTR;
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static void displaylcd_dma(void* data, int pixels, bool solid)
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{
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int i;
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lcd_dma_busy = true;
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clockgate_dma(0, 4, true);
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for (i = -1; i < (int)ARRAYLEN(lcd_lli) && pixels > 0; i++, pixels -= 0xfff)
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{
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bool last = i + 1 >= ARRAYLEN(lcd_lli) || pixels <= 0xfff;
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struct dma_lli* lli = i < 0 ? (struct dma_lli*)((int)&DMAC0C4LLI) : &lcd_lli[i];
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lli->srcaddr = data;
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lli->dstaddr = (void*)((int)&LCDWDATA);
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lli->nextlli = last ? NULL : &lcd_lli[i + 1];
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lli->control = 0x70240000 | (last ? pixels : 0xfff)
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| (last ? 0x80000000 : 0) | (solid ? 0 : 0x4000000);
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if (!solid) data = (void*)(((uint32_t)data) + 0x1ffe);
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}
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clean_dcache();
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DMAC0C4CONFIG = 0x88c1;
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}
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void displaylcd_native(unsigned int startx, unsigned int endx,
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unsigned int starty, unsigned int endy, void* data)
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{
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int pixels = (endx - startx + 1) * (endy - starty + 1);
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if (pixels <= 0) return;
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displaylcd_setup(startx, endx, starty, endy, false);
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displaylcd_dma(data, pixels, false);
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mutex_unlock(&lcd_mutex);
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}
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void displaylcd_safe_native(unsigned int startx, unsigned int endx,
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unsigned int starty, unsigned int endy, void* data)
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{
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int pixels = (endx - startx + 1) * (endy - starty + 1);
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if (pixels <= 0) return;
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displaylcd_setup(startx, endx, starty, endy, true);
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displaylcd_dma(data, pixels, false);
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}
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void filllcd_native(unsigned int startx, unsigned int endx,
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unsigned int starty, unsigned int endy, int color)
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{
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int pixels = (endx - startx + 1) * (endy - starty + 1);
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if (pixels <= 0) return;
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displaylcd_setup(startx, endx, starty, endy, false);
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lcd_color = color;
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displaylcd_dma(&lcd_color, pixels, true);
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mutex_unlock(&lcd_mutex);
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}
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void displaylcd_dither(unsigned int x, unsigned int y, unsigned int width,
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unsigned int height, void* data, unsigned int datax,
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unsigned int datay, unsigned int stride, bool solid)
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ICODE_ATTR __attribute__((naked,noinline));
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void displaylcd_dither(unsigned int x, unsigned int y, unsigned int width,
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unsigned int height, void* data, unsigned int datax,
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unsigned int datay, unsigned int stride, bool solid)
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{
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//TODO: This is ARMv5E optimized assembly, should be converted to ARMv6
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__asm__ volatile(" muls r12, r2, r3 \n");
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__asm__ volatile(" bxeq lr \n");
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__asm__ volatile(" stmfd sp!, {r1-r11,lr} \n");
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__asm__ volatile(" mov r12, #0 \n");
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__asm__ volatile(" str r12, [sp] \n");
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__asm__ volatile(" mov r12, r2 \n");
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__asm__ volatile(" add r8, r2, r2,lsl#1 \n");
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__asm__ volatile(" add r3, r1, r3 \n");
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__asm__ volatile(" sub r3, r3, #1 \n");
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__asm__ volatile(" mov r2, r1 \n");
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__asm__ volatile(" add r1, r0, r12 \n");
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__asm__ volatile(" sub r1, r1, #1 \n");
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__asm__ volatile(" bl displaylcd_setup \n");
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__asm__ volatile(" add sp, sp, #4 \n");
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__asm__ volatile(" mov r0, r8 \n");
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__asm__ volatile(" bl malloc \n");
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__asm__ volatile(" cmp r0, #0 \n");
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__asm__ volatile(" beq displaylcd_dither_unlock \n");
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__asm__ volatile(" mov r2, r8 \n");
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__asm__ volatile(" mov r1, #0 \n");
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__asm__ volatile(" mov r8, r0 \n");
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__asm__ volatile(" bl memset \n");
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__asm__ volatile(" ldr r0, [sp,#0x30] \n");
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__asm__ volatile(" ldr r1, [sp,#0x34] \n");
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__asm__ volatile(" ldr r11, [sp,#0x38] \n");
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__asm__ volatile(" ldr r3, [sp,#0x2c] \n");
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__asm__ volatile(" mla r0, r1, r11, r0 \n");
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__asm__ volatile(" ldr r12, [sp,#0x04] \n");
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__asm__ volatile(" ldr r2, [sp,#0x3c] \n");
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__asm__ volatile(" add r3, r3, r0,lsl#1 \n");
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__asm__ volatile(" cmp r2, #0 \n");
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__asm__ volatile(" ldreq r1, [sp] \n");
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__asm__ volatile(" add r3, r3, r0 \n");
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__asm__ volatile(" subeq r11, r11, r1 \n");
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__asm__ volatile(" add r11, r11, r11,lsl#1 \n");
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__asm__ volatile(" movne r10, #3 \n");
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__asm__ volatile(" moveq r10, #0 \n");
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__asm__ volatile(" ldr r9, =0x38300040 \n");
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__asm__ volatile("displaylcd_dither_y: \n");
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__asm__ volatile(" ldr lr, [sp] \n");
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__asm__ volatile(" mov r4, #0 \n");
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__asm__ volatile(" mov r5, #0 \n");
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__asm__ volatile(" mov r6, #0 \n");
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__asm__ volatile(" mov r7, r8 \n");
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__asm__ volatile("displaylcd_dither_x: \n");
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__asm__ volatile(" mov r2, #0 \n");
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__asm__ volatile(" ldrb r1, [r3], #1 \n");
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__asm__ volatile(" ldrsb r0, [r7] \n");
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__asm__ volatile(" add r1, r1, r4 \n");
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__asm__ volatile(" add r1, r1, r0 \n");
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__asm__ volatile(" cmp r1, #0xff \n");
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__asm__ volatile(" mvnhi r1, r1,asr#31 \n");
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__asm__ volatile(" andhi r1, r1, #0xff \n");
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__asm__ volatile(" mov r0, r1,lsr#3 \n");
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__asm__ volatile(" orr r2, r0,lsl#11 \n");
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__asm__ volatile(" sub r1, r1, r0,lsl#3 \n");
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__asm__ volatile(" sub r1, r1, r0,lsr#2 \n");
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__asm__ volatile(" mov r4, r4,lsr#1 \n");
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__asm__ volatile(" add r4, r4, r1,lsr#2 \n");
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__asm__ volatile(" strb r4, [r7], #1 \n");
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__asm__ volatile(" mov r4, r1,asr#1 \n");
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__asm__ volatile(" ldrb r1, [r3], #1 \n");
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__asm__ volatile(" ldrsb r0, [r7] \n");
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__asm__ volatile(" add r1, r1, r5 \n");
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__asm__ volatile(" add r1, r1, r0 \n");
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__asm__ volatile(" cmp r1, #0xff \n");
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__asm__ volatile(" mvnhi r1, r1,asr#31 \n");
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__asm__ volatile(" andhi r1, r1, #0xff \n");
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__asm__ volatile(" mov r0, r1,lsr#2 \n");
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__asm__ volatile(" orr r2, r0,lsl#5 \n");
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__asm__ volatile(" sub r1, r1, r0,lsl#2 \n");
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__asm__ volatile(" sub r1, r1, r0,lsr#4 \n");
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__asm__ volatile(" mov r5, r5,lsr#1 \n");
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__asm__ volatile(" add r5, r5, r1,lsr#2 \n");
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__asm__ volatile(" strb r5, [r7], #1 \n");
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__asm__ volatile(" mov r5, r1,asr#1 \n");
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__asm__ volatile(" ldrb r1, [r3], #1 \n");
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__asm__ volatile(" ldrsb r0, [r7] \n");
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__asm__ volatile(" add r1, r1, r6 \n");
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__asm__ volatile(" add r1, r1, r0 \n");
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__asm__ volatile(" cmp r1, #0xff \n");
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__asm__ volatile(" mvnhi r1, r1,asr#31 \n");
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__asm__ volatile(" andhi r1, r1, #0xff \n");
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__asm__ volatile(" mov r0, r1,lsr#3 \n");
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__asm__ volatile(" orr r2, r0 \n");
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__asm__ volatile(" sub r1, r1, r0,lsl#3 \n");
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__asm__ volatile(" sub r1, r1, r0,lsr#2 \n");
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__asm__ volatile(" mov r6, r6,lsr#1 \n");
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__asm__ volatile(" add r6, r6, r1,lsr#2 \n");
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__asm__ volatile(" strb r6, [r7], #1 \n");
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__asm__ volatile("displaylcd_dither_waitlcd: \n");
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__asm__ volatile(" ldr r0, [r9,#-0x24] \n");
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__asm__ volatile(" mov r6, r1,asr#1 \n");
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__asm__ volatile(" tst r0, #0x10 \n");
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__asm__ volatile(" bne displaylcd_dither_waitlcd\n");
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__asm__ volatile(" str r2, [r9] \n");
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__asm__ volatile(" sub r3, r3, r10 \n");
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__asm__ volatile(" subs lr, lr, #1 \n");
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__asm__ volatile(" bne displaylcd_dither_x \n");
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__asm__ volatile(" add r3, r3, r11 \n");
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__asm__ volatile(" subs r12, r12, #1 \n");
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__asm__ volatile(" bne displaylcd_dither_y \n");
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__asm__ volatile("displaylcd_dither_free: \n");
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__asm__ volatile(" mov r0, r8 \n");
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__asm__ volatile(" bl free \n");
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__asm__ volatile("displaylcd_dither_unlock: \n");
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__asm__ volatile(" ldr r0, =lcd_mutex \n");
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__asm__ volatile(" bl mutex_unlock \n");
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__asm__ volatile(" ldmfd sp!, {r2-r11,pc} \n");
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}
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void displaylcd(unsigned int x, unsigned int y, unsigned int width, unsigned int height,
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300 |
void* data, unsigned int datax, unsigned int datay, unsigned int stride)
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301 |
{
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302 |
displaylcd_dither(x, y, width, height, data, datax, datay, stride, false);
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303 |
}
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304 |
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305 |
void filllcd(unsigned int x, unsigned int y, unsigned int width, unsigned int height, int color)
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|
306 |
{
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|
307 |
if (width * height <= 0) return;
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|
308 |
mutex_lock(&lcd_mutex, TIMEOUT_BLOCK);
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|
309 |
displaylcd_sync();
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|
310 |
lcd_color = color;
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|
311 |
displaylcd_dither(x, y, width, height, &lcd_color, 0, 0, 0, true);
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|
312 |
mutex_unlock(&lcd_mutex);
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|
313 |
}
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|
314 |
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|
315 |
void INT_DMAC0C4()
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|
|
316 |
{
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|
317 |
DMAC0INTTCCLR = 0x10;
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|
318 |
lcd_dma_busy = false;
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|
319 |
clockgate_dma(0, 4, false);
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|
320 |
lcdconsole_callback();
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|
321 |
wakeup_signal(&lcd_wakeup);
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|
322 |
}
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|
323 |
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|
324 |
int lcd_translate_color(uint8_t alpha, uint8_t red, uint8_t green, uint8_t blue)
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|
325 |
ICODE_ATTR __attribute__((naked, noinline));
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|
326 |
int lcd_translate_color(uint8_t alpha, uint8_t red, uint8_t green, uint8_t blue)
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|
|
327 |
{
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|
|
328 |
asm volatile(
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|
329 |
"cmp r0, #0xff \n\t"
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|
330 |
"moveq r0, #-1 \n\t"
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331 |
"moveq pc, lr \n\t"
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|
332 |
"cmp r0, #0 \n\t"
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|
333 |
"movne r0, #0xff000000 \n\t"
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334 |
"orrne r0, r0, #0xff0000 \n\t"
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|
335 |
"mov r2, r2,lsr#2 \n\t"
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|
336 |
"orr r0, r0, r3,lsr#3 \n\t"
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|
337 |
"mov r1, r1,lsr#3 \n\t"
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|
338 |
"orr r0, r0, r2,lsl#5 \n\t"
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|
339 |
"orr r0, r0, r1,lsl#11 \n\t"
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|
340 |
"mov pc, lr \n\t"
|
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|
341 |
);
|
|
|
342 |
}
|