/*************************************************************************** * __________ __ ___. * Open \______ \ ____ ____ | | _\_ |__ _______ ___ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ * \/ \/ \/ \/ \/ * $Id$ * * Copyright (C) 2004 by Linus Nielsen Feltzing * * All files in this archive are subject to the GNU General Public License. * See the file COPYING in the source tree root for full license agreement. * * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY * KIND, either express or implied. * ****************************************************************************/ #include "config.h" #include "cpu.h" #include "lcd.h" #include "kernel.h" #include "thread.h" #include #include #include "file.h" #include "debug.h" #include "system.h" #include "font.h" #include "bidi.h" static bool display_on=false; /* is the display turned on? */ /* register defines for the Renesas HD66773R */ #define R_HORIZ_RAM_ADDR_POS 0x16 #define R_VERT_RAM_ADDR_POS 0x17 #define R_RAM_ADDR_SET 0x21 #define R_WRITE_DATA_2_GRAM 0x22 /***************************************************** The table below was generated by the following script: #!/usr/bin/perl # high byte table print "short high8to9[] = {\n"; $str = " "; for my $m (0 .. 255) { # RRRRRGGG => RRRRR0GGG my $v = (($m & 0xF8) << 1) | ($m & 0x07); if(length($str) > 75) { print "$str\n"; $str=" "; } $str .= sprintf("0x%03x, ", $v); } print "$str\n};\n"; *****************************************************/ /* Lookup table for 16->18bit conversion, high byte. The low byte is just shifted. */ const short high8to9[] ICONST_ATTR = { 0x000, 0x001, 0x002, 0x003, 0x004, 0x005, 0x006, 0x007, 0x010, 0x011, 0x012, 0x013, 0x014, 0x015, 0x016, 0x017, 0x020, 0x021, 0x022, 0x023, 0x024, 0x025, 0x026, 0x027, 0x030, 0x031, 0x032, 0x033, 0x034, 0x035, 0x036, 0x037, 0x040, 0x041, 0x042, 0x043, 0x044, 0x045, 0x046, 0x047, 0x050, 0x051, 0x052, 0x053, 0x054, 0x055, 0x056, 0x057, 0x060, 0x061, 0x062, 0x063, 0x064, 0x065, 0x066, 0x067, 0x070, 0x071, 0x072, 0x073, 0x074, 0x075, 0x076, 0x077, 0x080, 0x081, 0x082, 0x083, 0x084, 0x085, 0x086, 0x087, 0x090, 0x091, 0x092, 0x093, 0x094, 0x095, 0x096, 0x097, 0x0a0, 0x0a1, 0x0a2, 0x0a3, 0x0a4, 0x0a5, 0x0a6, 0x0a7, 0x0b0, 0x0b1, 0x0b2, 0x0b3, 0x0b4, 0x0b5, 0x0b6, 0x0b7, 0x0c0, 0x0c1, 0x0c2, 0x0c3, 0x0c4, 0x0c5, 0x0c6, 0x0c7, 0x0d0, 0x0d1, 0x0d2, 0x0d3, 0x0d4, 0x0d5, 0x0d6, 0x0d7, 0x0e0, 0x0e1, 0x0e2, 0x0e3, 0x0e4, 0x0e5, 0x0e6, 0x0e7, 0x0f0, 0x0f1, 0x0f2, 0x0f3, 0x0f4, 0x0f5, 0x0f6, 0x0f7, 0x100, 0x101, 0x102, 0x103, 0x104, 0x105, 0x106, 0x107, 0x110, 0x111, 0x112, 0x113, 0x114, 0x115, 0x116, 0x117, 0x120, 0x121, 0x122, 0x123, 0x124, 0x125, 0x126, 0x127, 0x130, 0x131, 0x132, 0x133, 0x134, 0x135, 0x136, 0x137, 0x140, 0x141, 0x142, 0x143, 0x144, 0x145, 0x146, 0x147, 0x150, 0x151, 0x152, 0x153, 0x154, 0x155, 0x156, 0x157, 0x160, 0x161, 0x162, 0x163, 0x164, 0x165, 0x166, 0x167, 0x170, 0x171, 0x172, 0x173, 0x174, 0x175, 0x176, 0x177, 0x180, 0x181, 0x182, 0x183, 0x184, 0x185, 0x186, 0x187, 0x190, 0x191, 0x192, 0x193, 0x194, 0x195, 0x196, 0x197, 0x1a0, 0x1a1, 0x1a2, 0x1a3, 0x1a4, 0x1a5, 0x1a6, 0x1a7, 0x1b0, 0x1b1, 0x1b2, 0x1b3, 0x1b4, 0x1b5, 0x1b6, 0x1b7, 0x1c0, 0x1c1, 0x1c2, 0x1c3, 0x1c4, 0x1c5, 0x1c6, 0x1c7, 0x1d0, 0x1d1, 0x1d2, 0x1d3, 0x1d4, 0x1d5, 0x1d6, 0x1d7, 0x1e0, 0x1e1, 0x1e2, 0x1e3, 0x1e4, 0x1e5, 0x1e6, 0x1e7, 0x1f0, 0x1f1, 0x1f2, 0x1f3, 0x1f4, 0x1f5, 0x1f6, 0x1f7, }; /* called very frequently - inline! */ inline void lcd_write_reg(int reg, int val) { *(volatile unsigned short *)0xf0008000 = (reg >> 8) << 1; *(volatile unsigned short *)0xf0008000 = (reg & 0xff) << 1; *(volatile unsigned short *)0xf0008002 = (val >> 8) << 1; *(volatile unsigned short *)0xf0008002 = (val & 0xff) << 1; } /* called very frequently - inline! */ inline void lcd_begin_write_gram(void) { *(volatile unsigned short *)0xf0008000 = (R_WRITE_DATA_2_GRAM >> 8) << 1; *(volatile unsigned short *)0xf0008000 = (R_WRITE_DATA_2_GRAM & 0xff) << 1; } /* called very frequently - inline! */ inline void lcd_write_data(const unsigned short* p_bytes, int count) ICODE_ATTR; inline void lcd_write_data(const unsigned short* p_bytes, int count) { /* Ok, by doing 32bit reads we gain a tad bit so I decided to leave this code in for now, even though when called with an odd 'count' we will actually output one pixel "too many". */ unsigned int tmp; unsigned int *ptr = (unsigned int *)p_bytes; if(count&1) count++; count >>= 1; while(count--) { tmp = *ptr++; *(volatile unsigned short *)0xf0008002 = high8to9[tmp >> 24]; *(volatile unsigned short *)0xf0008002 = tmp>>15; *(volatile unsigned short *)0xf0008002 = high8to9[(tmp >> 8)&255]; *(volatile unsigned short *)0xf0008002 = tmp<<1; } } /*** 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; } /* Rolls up the lcd display by the specified amount of lines. * Lines that are rolled out over the top of the screen are * rolled in from the bottom again. This is a hardware * remapping only and all operations on the lcd are affected. * -> * @param int lines - The number of lines that are rolled. * The value must be 0 <= pixels < LCD_HEIGHT. */ void lcd_roll(int lines) { (void)lines; } /* LCD init * These settings are taken from the original X5 firmware */ void lcd_init_device(void) { display_on=true; /* LCD Reset */ and_l(~0x00000010, &GPIO1_OUT); or_l(0x00000010, &GPIO1_ENABLE); or_l(0x00000010, &GPIO1_FUNCTION); sleep(HZ/100); or_l(0x00000010, &GPIO1_OUT); sleep(HZ/100); lcd_write_reg(0, 0x0001); sleep(HZ/50); lcd_write_reg(0x0d, 0x0401); lcd_write_reg(0x0e, 0x321e); lcd_write_reg(0x01, 0x0313); lcd_write_reg(0x02, 0x0700); lcd_write_reg(0x05, 0x9038); lcd_write_reg(0x06, 0x0000); lcd_write_reg(0x0b, 0x4000); sleep(HZ/100); lcd_write_reg(0x21,0x0000); lcd_write_reg(0x30,0x0003); lcd_write_reg(0x31,0x0400); lcd_write_reg(0x32,0x0407); lcd_write_reg(0x33,0x0305); lcd_write_reg(0x34,0x0003); lcd_write_reg(0x35,0x0704); lcd_write_reg(0x36,0x0407); lcd_write_reg(0x37,0x0503); lcd_write_reg(0x0f,0x0002); lcd_write_reg(0x11,0x0000); lcd_write_reg(0x14,0x9f00); lcd_write_reg(0x15,0x5c00); lcd_write_reg(0x16,0x7f00); lcd_write_reg(0x17,0x9f00); lcd_write_reg(0x3a,0x1409); lcd_write_reg(0x3b,0x0602); lcd_write_reg(0x0c,0x0001); sleep(HZ/25); lcd_write_reg(0x03,0x002c); lcd_write_reg(0x04,0x8000); sleep(HZ/25); lcd_write_reg(0x0e,0x3318); sleep(HZ/25); lcd_write_reg(0x0d,0x0411); sleep(HZ/100); lcd_write_reg(0x07,0x0006); lcd_write_reg(0x07,0x036); lcd_write_reg(0x07,0x037); lcd_write_reg(0x07,0x0037); return; } void lcd_enable(bool on) { display_on = on; } /*** update functions ***/ /* Performance function that works with an external buffer note that by and bheight are in 8-pixel units! */ void lcd_blit(const fb_data* data, int x, int by, int width, int bheight, int stride) { /* TODO: Implement lcd_blit() */ (void)data; (void)x; (void)by; (void)width; (void)bheight; (void)stride; /*if(display_on)*/ } /* Update the display. This must be called after all other LCD functions that change the display. */ void lcd_update(void) ICODE_ATTR; void lcd_update(void) { if(display_on){ /* Copy display bitmap to hardware */ lcd_write_reg(R_RAM_ADDR_SET, 0x0000); lcd_begin_write_gram(); lcd_write_data((unsigned short *)lcd_framebuffer, LCD_WIDTH*LCD_HEIGHT); } } /* Update a fraction of the display. */ void lcd_update_rect(int, int, int, int) ICODE_ATTR; void lcd_update_rect(int x, int y, int width, int height) { if(display_on) { int ymax = y + height; if(x + width > LCD_WIDTH) width = LCD_WIDTH - x; if (width <= 0) return; /* nothing left to do, 0 is harmful to lcd_write_data() */ if(ymax >= LCD_HEIGHT) ymax = LCD_HEIGHT-1; /* set update window */ /* horiz ram addr */ lcd_write_reg(R_HORIZ_RAM_ADDR_POS, (ymax<<8) | y); /* vert ram addr */ lcd_write_reg(R_VERT_RAM_ADDR_POS,((x+width-1)<<8) | x); lcd_write_reg(R_RAM_ADDR_SET, (x<<8) | y); lcd_begin_write_gram(); /* Copy specified rectangle bitmap to hardware */ for (; y <= ymax; y++) { lcd_write_data ((unsigned short *)&lcd_framebuffer[y][x], width); } /* reset update window */ lcd_write_reg(R_HORIZ_RAM_ADDR_POS, 0x7f00); lcd_write_reg(R_VERT_RAM_ADDR_POS, 0x9f00); } }