summaryrefslogtreecommitdiff
path: root/board/esd/common/lcd.c
diff options
context:
space:
mode:
authorstroese <stroese>2004-12-16 18:43:13 +0000
committerstroese <stroese>2004-12-16 18:43:13 +0000
commit0621f6f9d33e7b9949a0f1b6d296ee1da6fb0198 (patch)
tree3d748237693582daf1b895ff23cf92f529e4e91c /board/esd/common/lcd.c
parentcd5396fa12614138eaace0ee0ee70062efe1c86b (diff)
downloadu-boot-imx-0621f6f9d33e7b9949a0f1b6d296ee1da6fb0198.zip
u-boot-imx-0621f6f9d33e7b9949a0f1b6d296ee1da6fb0198.tar.gz
u-boot-imx-0621f6f9d33e7b9949a0f1b6d296ee1da6fb0198.tar.bz2
esd common update
Diffstat (limited to 'board/esd/common/lcd.c')
-rw-r--r--board/esd/common/lcd.c230
1 files changed, 230 insertions, 0 deletions
diff --git a/board/esd/common/lcd.c b/board/esd/common/lcd.c
new file mode 100644
index 0000000..a1fc180
--- /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);
+}