From 0621f6f9d33e7b9949a0f1b6d296ee1da6fb0198 Mon Sep 17 00:00:00 2001
From: stroese <stroese>
Date: Thu, 16 Dec 2004 18:43:13 +0000
Subject: esd common update

---
 board/esd/common/lcd.c | 230 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 230 insertions(+)
 create mode 100644 board/esd/common/lcd.c

(limited to 'board/esd/common/lcd.c')

diff --git a/board/esd/common/lcd.c b/board/esd/common/lcd.c
new file mode 100644
index 0000000000..a1fc18089d
--- /dev/null
+++ b/board/esd/common/lcd.c
@@ -0,0 +1,230 @@
+/*
+ * (C) Copyright 2003-2004
+ * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com
+ *
+ * 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"
+
+
+int palette_index;
+int palette_value;
+
+
+#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_init(uchar *lcd_reg, uchar *lcd_mem, S1D_REGS *regs, int reg_count,
+	      uchar *logo_bmp, ulong len)
+{
+	int i;
+	ushort s1dReg;
+	uchar s1dValue;
+	uchar *ptr;
+	ushort *ptr2;
+	ushort val;
+	unsigned char *dst;
+	int x, y;
+	int width, height, bpp, colors, line_size;
+	int header_size;
+	unsigned char *bmp;
+	unsigned char r, g, b;
+	BITMAPINFOHEADER *bm_info;
+	int reg_byte_swap;
+
+	/*
+	 * Detect epson
+	 */
+	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) {
+		/*
+		 * Big epson detected (with register swap bug)
+		 */
+		reg_byte_swap = TRUE;
+		palette_index = 0x1e3;
+		palette_value = 0x1e5;
+		puts("LCD:   S1D13806S");
+	} else if (lcd_reg[0] == 0x18) {
+		/*
+		 * Small epson detected (704)
+		 */
+		reg_byte_swap = FALSE;
+		palette_index = 0x15;
+		palette_value = 0x17;
+		puts("LCD:   S1D13704");
+	} else if (lcd_reg[0x10000] == 0x24) {
+		/*
+		 * Small epson detected (705)
+		 */
+		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;
+	}
+
+	/*
+	 * 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);
+		free(dst);
+		return;
+	}
+	printf(" (%d*%d, %dbpp)\n", width, height, bpp);
+
+	/*
+	 * Write color palette
+	 */
+	if (colors <= 256) {
+		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);
+		}
+	}
+
+	/*
+	 * Write bitmap data into framebuffer
+	 */
+	ptr = lcd_mem;
+	ptr2 = (ushort *)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;
+			}
+		} else {
+			for (x=0; x<line_size; x++) {
+				*ptr++ = *bmp++;
+			}
+		}
+	}
+
+	free(dst);
+}
-- 
cgit