/* * (C) Copyright 2003-2004 * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com * * (C) Copyright 2005 * Stefan Roese, DENX Software Engineering, sr@denx.de. * * See file CREDITS for list of people who contributed to this * project. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA */ #include "lcd.h" extern int video_display_bitmap (ulong, int, int); int palette_index; int palette_value; int lcd_depth; unsigned char *glob_lcd_reg; unsigned char *glob_lcd_mem; #ifdef CFG_LCD_ENDIAN void lcd_setup(int lcd, int config) { if (lcd == 0) { /* * Set endianess and reset lcd controller 0 (small) */ out32(GPIO0_OR, in32(GPIO0_OR) & ~CFG_LCD0_RST); /* set reset to low */ udelay(10); /* wait 10us */ if (config == 1) { out32(GPIO0_OR, in32(GPIO0_OR) | CFG_LCD_ENDIAN); /* big-endian */ } else { out32(GPIO0_OR, in32(GPIO0_OR) & ~CFG_LCD_ENDIAN); /* little-endian */ } udelay(10); /* wait 10us */ out32(GPIO0_OR, in32(GPIO0_OR) | CFG_LCD0_RST); /* set reset to high */ } else { /* * Set endianess and reset lcd controller 1 (big) */ out32(GPIO0_OR, in32(GPIO0_OR) & ~CFG_LCD1_RST); /* set reset to low */ udelay(10); /* wait 10us */ if (config == 1) { out32(GPIO0_OR, in32(GPIO0_OR) | CFG_LCD_ENDIAN); /* big-endian */ } else { out32(GPIO0_OR, in32(GPIO0_OR) & ~CFG_LCD_ENDIAN); /* little-endian */ } udelay(10); /* wait 10us */ out32(GPIO0_OR, in32(GPIO0_OR) | CFG_LCD1_RST); /* set reset to high */ } /* * CFG_LCD_ENDIAN may also be FPGA_RESET, so set inactive */ out32(GPIO0_OR, in32(GPIO0_OR) | CFG_LCD_ENDIAN); /* set reset high again */ } #endif /* #ifdef CFG_LCD_ENDIAN */ void lcd_bmp(uchar *logo_bmp) { int i; uchar *ptr; ushort *ptr2; ushort val; unsigned char *dst = NULL; int x, y; int width, height, bpp, colors, line_size; int header_size; unsigned char *bmp; unsigned char r, g, b; BITMAPINFOHEADER *bm_info; ulong len; /* * Check for bmp mark 'BM' */ if (*(ushort *)logo_bmp != 0x424d) { /* * Decompress bmp image */ len = CFG_VIDEO_LOGO_MAX_SIZE; dst = malloc(CFG_VIDEO_LOGO_MAX_SIZE); if (dst == NULL) { printf("Error: malloc in gunzip failed!\n"); return; } if (gunzip(dst, CFG_VIDEO_LOGO_MAX_SIZE, (uchar *)logo_bmp, &len) != 0) { return; } if (len == CFG_VIDEO_LOGO_MAX_SIZE) { printf("Image could be truncated (increase CFG_VIDEO_LOGO_MAX_SIZE)!\n"); } /* * Check for bmp mark 'BM' */ if (*(ushort *)dst != 0x424d) { printf("LCD: Unknown image format!\n"); free(dst); return; } } else { /* * Uncompressed BMP image, just use this pointer */ dst = (uchar *)logo_bmp; } /* * Get image info from bmp-header */ bm_info = (BITMAPINFOHEADER *)(dst + 14); bpp = LOAD_SHORT(bm_info->biBitCount); width = LOAD_LONG(bm_info->biWidth); height = LOAD_LONG(bm_info->biHeight); switch (bpp) { case 1: colors = 1; line_size = width >> 3; break; case 4: colors = 16; line_size = width >> 1; break; case 8: colors = 256; line_size = width; break; case 24: colors = 0; line_size = width * 3; break; default: printf("LCD: Unknown bpp (%d) im image!\n", bpp); if ((dst != NULL) && (dst != (uchar *)logo_bmp)) { free(dst); } return; } printf(" (%d*%d, %dbpp)\n", width, height, bpp); /* * Write color palette */ if ((colors <= 256) && (lcd_depth <= 8)) { ptr = (unsigned char *)(dst + 14 + 40); for (i=0; i<colors; i++) { b = *ptr++; g = *ptr++; r = *ptr++; ptr++; S1D_WRITE_PALETTE(glob_lcd_reg, i, r, g, b); } } /* * Write bitmap data into framebuffer */ ptr = glob_lcd_mem; ptr2 = (ushort *)glob_lcd_mem; header_size = 14 + 40 + 4*colors; /* skip bmp header */ for (y=0; y<height; y++) { bmp = &dst[(height-1-y)*line_size + header_size]; if (lcd_depth == 16) { if (bpp == 24) { for (x=0; x<width; x++) { /* * Generate epson 16bpp fb-format from 24bpp image */ b = *bmp++ >> 3; g = *bmp++ >> 2; r = *bmp++ >> 3; val = ((r & 0x1f) << 11) | ((g & 0x3f) << 5) | (b & 0x1f); *ptr2++ = val; } } else if (bpp == 8) { for (x=0; x<line_size; x++) { /* query rgb value from palette */ ptr = (unsigned char *)(dst + 14 + 40) ; ptr += (*bmp++) << 2; b = *ptr++ >> 3; g = *ptr++ >> 2; r = *ptr++ >> 3; val = ((r & 0x1f) << 11) | ((g & 0x3f) << 5) | (b & 0x1f); *ptr2++ = val; } } } else { for (x=0; x<line_size; x++) { *ptr++ = *bmp++; } } } if ((dst != NULL) && (dst != (uchar *)logo_bmp)) { free(dst); } } void lcd_init(uchar *lcd_reg, uchar *lcd_mem, S1D_REGS *regs, int reg_count, uchar *logo_bmp, ulong len) { int i; ushort s1dReg; uchar s1dValue; int reg_byte_swap; /* * Detect epson */ lcd_reg[0] = 0x00; lcd_reg[1] = 0x00; if (lcd_reg[0] == 0x1c) { /* * Big epson detected */ reg_byte_swap = FALSE; palette_index = 0x1e2; palette_value = 0x1e4; lcd_depth = 16; puts("LCD: S1D13806"); } else if (lcd_reg[1] == 0x1c) { /* * Big epson detected (with register swap bug) */ reg_byte_swap = TRUE; palette_index = 0x1e3; palette_value = 0x1e5; lcd_depth = 16; puts("LCD: S1D13806S"); } else if (lcd_reg[0] == 0x18) { /* * Small epson detected (704) */ reg_byte_swap = FALSE; palette_index = 0x15; palette_value = 0x17; lcd_depth = 8; puts("LCD: S1D13704"); } else if (lcd_reg[0x10000] == 0x24) { /* * Small epson detected (705) */ reg_byte_swap = FALSE; palette_index = 0x15; palette_value = 0x17; lcd_depth = 8; lcd_reg += 0x10000; /* add offset for 705 regs */ puts("LCD: S1D13705"); } else { puts("LCD: No controller detected!\n"); return; } /* * Setup lcd controller regs */ for (i = 0; i<reg_count; i++) { s1dReg = regs[i].Index; if (reg_byte_swap) { if ((s1dReg & 0x0001) == 0) s1dReg |= 0x0001; else s1dReg &= ~0x0001; } s1dValue = regs[i].Value; lcd_reg[s1dReg] = s1dValue; } /* * Save reg & mem pointer for later usage (e.g. bmp command) */ glob_lcd_reg = lcd_reg; glob_lcd_mem = lcd_mem; /* * Display bmp image */ lcd_bmp(logo_bmp); } #ifdef CONFIG_VIDEO_SM501 int do_esdbmp(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) { ulong addr; char *str; if (argc != 2) { printf ("Usage:\n%s\n", cmdtp->usage); return 1; } addr = simple_strtoul(argv[1], NULL, 16); str = getenv("bd_type"); if ((strcmp(str, "ppc221") == 0) || (strcmp(str, "ppc231") == 0)) { /* * SM501 available, use standard bmp command */ return (video_display_bitmap(addr, 0, 0)); } else { /* * No SM501 available, use esd epson bmp command */ lcd_bmp((uchar *)addr); return 0; } } U_BOOT_CMD( esdbmp, 2, 1, do_esdbmp, "esdbmp - display BMP image\n", "<imageAddr> - display image\n" ); #endif