2 * (C) Copyright 2003-2004
3 * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com
6 * Stefan Roese, DENX Software Engineering, sr@denx.de.
8 * See file CREDITS for list of people who contributed to this
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License as
13 * published by the Free Software Foundation; either version 2 of
14 * the License, or (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
30 extern int video_display_bitmap (ulong, int, int);
36 unsigned char *glob_lcd_reg;
37 unsigned char *glob_lcd_mem;
40 void lcd_setup(int lcd, int config)
44 * Set endianess and reset lcd controller 0 (small)
46 out32(GPIO0_OR, in32(GPIO0_OR) & ~CFG_LCD0_RST); /* set reset to low */
47 udelay(10); /* wait 10us */
49 out32(GPIO0_OR, in32(GPIO0_OR) | CFG_LCD_ENDIAN); /* big-endian */
51 out32(GPIO0_OR, in32(GPIO0_OR) & ~CFG_LCD_ENDIAN); /* little-endian */
53 udelay(10); /* wait 10us */
54 out32(GPIO0_OR, in32(GPIO0_OR) | CFG_LCD0_RST); /* set reset to high */
57 * Set endianess and reset lcd controller 1 (big)
59 out32(GPIO0_OR, in32(GPIO0_OR) & ~CFG_LCD1_RST); /* set reset to low */
60 udelay(10); /* wait 10us */
62 out32(GPIO0_OR, in32(GPIO0_OR) | CFG_LCD_ENDIAN); /* big-endian */
64 out32(GPIO0_OR, in32(GPIO0_OR) & ~CFG_LCD_ENDIAN); /* little-endian */
66 udelay(10); /* wait 10us */
67 out32(GPIO0_OR, in32(GPIO0_OR) | CFG_LCD1_RST); /* set reset to high */
71 * CFG_LCD_ENDIAN may also be FPGA_RESET, so set inactive
73 out32(GPIO0_OR, in32(GPIO0_OR) | CFG_LCD_ENDIAN); /* set reset high again */
75 #endif /* #ifdef CFG_LCD_ENDIAN */
78 void lcd_bmp(uchar *logo_bmp)
84 unsigned char *dst = NULL;
86 int width, height, bpp, colors, line_size;
89 unsigned char r, g, b;
90 BITMAPINFOHEADER *bm_info;
94 * Check for bmp mark 'BM'
96 if (*(ushort *)logo_bmp != 0x424d) {
99 * Decompress bmp image
101 len = CFG_VIDEO_LOGO_MAX_SIZE;
102 dst = malloc(CFG_VIDEO_LOGO_MAX_SIZE);
104 printf("Error: malloc in gunzip failed!\n");
107 if (gunzip(dst, CFG_VIDEO_LOGO_MAX_SIZE, (uchar *)logo_bmp, &len) != 0) {
110 if (len == CFG_VIDEO_LOGO_MAX_SIZE) {
111 printf("Image could be truncated (increase CFG_VIDEO_LOGO_MAX_SIZE)!\n");
115 * Check for bmp mark 'BM'
117 if (*(ushort *)dst != 0x424d) {
118 printf("LCD: Unknown image format!\n");
124 * Uncompressed BMP image, just use this pointer
126 dst = (uchar *)logo_bmp;
130 * Get image info from bmp-header
132 bm_info = (BITMAPINFOHEADER *)(dst + 14);
133 bpp = LOAD_SHORT(bm_info->biBitCount);
134 width = LOAD_LONG(bm_info->biWidth);
135 height = LOAD_LONG(bm_info->biHeight);
139 line_size = width >> 3;
143 line_size = width >> 1;
151 line_size = width * 3;
154 printf("LCD: Unknown bpp (%d) im image!\n", bpp);
155 if ((dst != NULL) && (dst != (uchar *)logo_bmp)) {
160 printf(" (%d*%d, %dbpp)\n", width, height, bpp);
163 * Write color palette
165 if ((colors <= 256) && (lcd_depth <= 8)) {
166 ptr = (unsigned char *)(dst + 14 + 40);
167 for (i=0; i<colors; i++) {
172 S1D_WRITE_PALETTE(glob_lcd_reg, i, r, g, b);
177 * Write bitmap data into framebuffer
180 ptr2 = (ushort *)glob_lcd_mem;
181 header_size = 14 + 40 + 4*colors; /* skip bmp header */
182 for (y=0; y<height; y++) {
183 bmp = &dst[(height-1-y)*line_size + header_size];
184 if (lcd_depth == 16) {
186 for (x=0; x<width; x++) {
188 * Generate epson 16bpp fb-format from 24bpp image
193 val = ((r & 0x1f) << 11) | ((g & 0x3f) << 5) | (b & 0x1f);
196 } else if (bpp == 8) {
197 for (x=0; x<line_size; x++) {
198 /* query rgb value from palette */
199 ptr = (unsigned char *)(dst + 14 + 40) ;
200 ptr += (*bmp++) << 2;
204 val = ((r & 0x1f) << 11) | ((g & 0x3f) << 5) | (b & 0x1f);
209 for (x=0; x<line_size; x++) {
215 if ((dst != NULL) && (dst != (uchar *)logo_bmp)) {
221 void lcd_init(uchar *lcd_reg, uchar *lcd_mem, S1D_REGS *regs, int reg_count,
222 uchar *logo_bmp, ulong len)
235 if (lcd_reg[0] == 0x1c) {
239 reg_byte_swap = FALSE;
240 palette_index = 0x1e2;
241 palette_value = 0x1e4;
243 puts("LCD: S1D13806");
244 } else if (lcd_reg[1] == 0x1c) {
246 * Big epson detected (with register swap bug)
248 reg_byte_swap = TRUE;
249 palette_index = 0x1e3;
250 palette_value = 0x1e5;
252 puts("LCD: S1D13806S");
253 } else if (lcd_reg[0] == 0x18) {
255 * Small epson detected (704)
257 reg_byte_swap = FALSE;
258 palette_index = 0x15;
259 palette_value = 0x17;
261 puts("LCD: S1D13704");
262 } else if (lcd_reg[0x10000] == 0x24) {
264 * Small epson detected (705)
266 reg_byte_swap = FALSE;
267 palette_index = 0x15;
268 palette_value = 0x17;
270 lcd_reg += 0x10000; /* add offset for 705 regs */
271 puts("LCD: S1D13705");
273 puts("LCD: No controller detected!\n");
278 * Setup lcd controller regs
280 for (i = 0; i<reg_count; i++) {
281 s1dReg = regs[i].Index;
283 if ((s1dReg & 0x0001) == 0)
288 s1dValue = regs[i].Value;
289 lcd_reg[s1dReg] = s1dValue;
293 * Save reg & mem pointer for later usage (e.g. bmp command)
295 glob_lcd_reg = lcd_reg;
296 glob_lcd_mem = lcd_mem;
304 #ifdef CONFIG_VIDEO_SM501
305 int do_esdbmp(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
311 printf ("Usage:\n%s\n", cmdtp->usage);
315 addr = simple_strtoul(argv[1], NULL, 16);
317 str = getenv("bd_type");
318 if ((strcmp(str, "ppc221") == 0) || (strcmp(str, "ppc231") == 0)) {
320 * SM501 available, use standard bmp command
322 return (video_display_bitmap(addr, 0, 0));
325 * No SM501 available, use esd epson bmp command
327 lcd_bmp((uchar *)addr);
333 esdbmp, 2, 1, do_esdbmp,
334 "esdbmp - display BMP image\n",
335 "<imageAddr> - display image\n"