From 98f4a3dfcbee54ce2b1d16ef2a2901493e65e5d2 Mon Sep 17 00:00:00 2001
From: Stefan Roese <sr@denx.de>
Date: Thu, 22 Sep 2005 09:04:17 +0200
Subject: Add SM501 support to HH405 board. Add support for gzip compressed
 bmp's (CONFIG_VIDEO_BMP_GZIP). Add support for eeprom write-enable
 (CFG_EEPROM_WREN). Patch by Stefan Roese, 22 Sep 2005

---
 board/esd/common/lcd.c | 258 +++++++++++++++++++++++++++++++++----------------
 1 file changed, 177 insertions(+), 81 deletions(-)

(limited to 'board/esd/common')

diff --git a/board/esd/common/lcd.c b/board/esd/common/lcd.c
index d2d642a..22b49ce 100644
--- a/board/esd/common/lcd.c
+++ b/board/esd/common/lcd.c
@@ -2,6 +2,9 @@
  * (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.
  *
@@ -24,9 +27,14 @@
 #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)
@@ -67,12 +75,9 @@ void lcd_setup(int lcd, int config)
 #endif /* #ifdef CFG_LCD_ENDIAN */
 
 
-void lcd_init(uchar *lcd_reg, uchar *lcd_mem, S1D_REGS *regs, int reg_count,
-	      uchar *logo_bmp, ulong len)
+void lcd_bmp(uchar *logo_bmp)
 {
 	int i;
-	ushort s1dReg;
-	uchar s1dValue;
 	uchar *ptr;
 	ushort *ptr2;
 	ushort val;
@@ -83,76 +88,37 @@ void lcd_init(uchar *lcd_reg, uchar *lcd_mem, S1D_REGS *regs, int reg_count,
 	unsigned char *bmp;
 	unsigned char r, g, b;
 	BITMAPINFOHEADER *bm_info;
-	int reg_byte_swap;
+	ulong len;
+	int do_free = 0;
 
 	/*
-	 * Detect epson
+	 * Check for bmp mark 'BM'
 	 */
-	if (lcd_reg[0] == 0x1c) {
-		/*
-		 * Big epson detected
-		 */
-		reg_byte_swap = FALSE;
-		palette_index = 0x1e2;
-		palette_value = 0x1e4;
-		puts("LCD:   S1D13806");
-	} else if (lcd_reg[1] == 0x1c) {
+	if (*(ushort *)logo_bmp != 0x424d) {
+
 		/*
-		 * Big epson detected (with register swap bug)
+		 * Decompress bmp image
 		 */
-		reg_byte_swap = TRUE;
-		palette_index = 0x1e3;
-		palette_value = 0x1e5;
-		puts("LCD:   S1D13806S");
-	} else if (lcd_reg[0] == 0x18) {
+		len = CFG_VIDEO_LOGO_MAX_SIZE;
+		dst = malloc(CFG_LCD_LOGO_MAX_SIZE);
+		do_free = 1;
+		if (gunzip(dst, CFG_LCD_LOGO_MAX_SIZE, (uchar *)logo_bmp, &len) != 0) {
+			return;
+		}
+
 		/*
-		 * Small epson detected (704)
+		 * Check for bmp mark 'BM'
 		 */
-		reg_byte_swap = FALSE;
-		palette_index = 0x15;
-		palette_value = 0x17;
-		puts("LCD:   S1D13704");
-	} else if (lcd_reg[0x10000] == 0x24) {
+		if (*(ushort *)dst != 0x424d) {
+			printf("LCD: Unknown image format!\n");
+			free(dst);
+			return;
+		}
+	} else {
 		/*
-		 * Small epson detected (705)
+		 * Uncompressed BMP image, just use this pointer
 		 */
-		reg_byte_swap = FALSE;
-		palette_index = 0x15;
-		palette_value = 0x17;
-		lcd_reg += 0x10000; /* add offset for 705 regs */
-		puts("LCD:   S1D13705");
-	} else {
-		puts("LCD:   No controller detected!\n");
-		return;
-	}
-
-	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;
-	}
-
-	/*
-	 * Decompress bmp image
-	 */
-	dst = malloc(CFG_LCD_LOGO_MAX_SIZE);
-	if (gunzip(dst, CFG_LCD_LOGO_MAX_SIZE, (uchar *)logo_bmp, &len) != 0) {
-		return;
-	}
-
-	/*
-	 * Check for bmp mark 'BM'
-	 */
-	if (*(ushort *)dst != 0x424d) {
-		printf("LCD: Unknown image format!\n");
-		free(dst);
-		return;
+		dst = (uchar *)logo_bmp;
 	}
 
 	/*
@@ -189,35 +155,48 @@ void lcd_init(uchar *lcd_reg, uchar *lcd_mem, S1D_REGS *regs, int reg_count,
 	/*
 	 * Write color palette
 	 */
-	if (colors <= 256) {
+	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(lcd_reg, i, r, g, b);
+			S1D_WRITE_PALETTE(glob_lcd_reg, i, r, g, b);
 		}
 	}
 
 	/*
 	 * Write bitmap data into framebuffer
 	 */
-	ptr = lcd_mem;
-	ptr2 = (ushort *)lcd_mem;
+	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 (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;
+		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++) {
@@ -226,5 +205,122 @@ void lcd_init(uchar *lcd_reg, uchar *lcd_mem, S1D_REGS *regs, int reg_count,
 		}
 	}
 
-	free(dst);
+	if (do_free) {
+		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
+	 */
+	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);
 }
+
+
+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"
+);
-- 
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