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authorLinus Nielsen Feltzing <linus@haxx.se>2005-11-14 20:41:49 +0000
committerLinus Nielsen Feltzing <linus@haxx.se>2005-11-14 20:41:49 +0000
commitdbc8c2c14cc86b6a23b437e3f3145214e173bfa2 (patch)
tree2b65645045c1dab89353427b6b542d423c55d2d4 /firmware
parenta199aef53a58686bf200c3f61579bf7df0e30e7d (diff)
downloadrockbox-dbc8c2c14cc86b6a23b437e3f3145214e173bfa2.tar.gz
rockbox-dbc8c2c14cc86b6a23b437e3f3145214e173bfa2.zip
First version of the H300 LCD driver
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7875 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'firmware')
-rw-r--r--firmware/drivers/lcd-h300.c219
1 files changed, 219 insertions, 0 deletions
diff --git a/firmware/drivers/lcd-h300.c b/firmware/drivers/lcd-h300.c
new file mode 100644
index 0000000000..1e71da59a8
--- /dev/null
+++ b/firmware/drivers/lcd-h300.c
@@ -0,0 +1,219 @@
+/***************************************************************************
+ * __________ __ ___.
+ * Open \______ \ ____ ____ | | _\_ |__ _______ ___
+ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
+ * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
+ * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
+ * \/ \/ \/ \/ \/
+ * $Id$
+ *
+ * Copyright (C) 2004 by Linus Nielsen Feltzing
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#include "config.h"
+
+#include "cpu.h"
+#include "lcd.h"
+#include "kernel.h"
+#include "thread.h"
+#include <string.h>
+#include <stdlib.h>
+#include "file.h"
+#include "debug.h"
+#include "system.h"
+#include "font.h"
+#include "bidi.h"
+
+void lcd_write_reg(int reg, int val)
+{
+ *(volatile unsigned short *)0xf0000000 = reg;
+ *(volatile unsigned short *)0xf0000002 = val;
+}
+
+void lcd_begin_write_gram(void)
+{
+ *(volatile unsigned short *)0xf0000000 = 0x22;
+}
+
+void lcd_write_data(const unsigned short* p_bytes, int count)
+{
+ while(count--)
+ *(volatile unsigned short *)0xf0000002 = *p_bytes++;
+}
+
+/*** hardware configuration ***/
+
+int lcd_default_contrast(void)
+{
+ return 28;
+}
+
+#ifndef SIMULATOR
+
+void lcd_set_contrast(int val)
+{
+ (void)val;
+}
+
+void lcd_set_invert_display(bool yesno)
+{
+ (void)yesno;
+}
+
+/* turn the display upside down (call lcd_update() afterwards) */
+void lcd_set_flip(bool yesno)
+{
+ (void)yesno;
+}
+
+/* Rolls up the lcd display by the specified amount of lines.
+ * Lines that are rolled out over the top of the screen are
+ * rolled in from the bottom again. This is a hardware
+ * remapping only and all operations on the lcd are affected.
+ * ->
+ * @param int lines - The number of lines that are rolled.
+ * The value must be 0 <= pixels < LCD_HEIGHT. */
+void lcd_roll(int lines)
+{
+ (void)lines;
+}
+
+#endif /* !SIMULATOR */
+
+/* LCD init */
+#ifndef SIMULATOR
+void lcd_init_device(void)
+{
+ /* GPO46 is LCD RESET */
+ or_l(0x00004000, &GPIO1_OUT);
+ or_l(0x00004000, &GPIO1_ENABLE);
+ or_l(0x00004000, &GPIO1_FUNCTION);
+
+ /* Reset LCD */
+ sleep(1);
+ and_l(~0x00004000, &GPIO1_OUT);
+ sleep(1);
+ or_l(0x00004000, &GPIO1_OUT);
+ sleep(1);
+
+ lcd_write_reg(0x00, 0x0001);
+ sleep(1);
+ lcd_write_reg(0x07, 0x0040);
+ lcd_write_reg(0x12, 0x0000);
+ lcd_write_reg(0x13, 0x0000);
+ sleep(1);
+ lcd_write_reg(0x11, 0x0003);
+ lcd_write_reg(0x12, 0x0008);
+ lcd_write_reg(0x13, 0x3617);
+ lcd_write_reg(0x12, 0x0008);
+ lcd_write_reg(0x10, 0x0004);
+ lcd_write_reg(0x10, 0x0004);
+ lcd_write_reg(0x11, 0x0002);
+ lcd_write_reg(0x12, 0x0018);
+ lcd_write_reg(0x10, 0x0044);
+ sleep(1);
+ lcd_write_reg(0x10, 0x0144);
+ lcd_write_reg(0x10, 0x0540);
+ lcd_write_reg(0x13, 0x3218);
+ lcd_write_reg(0x01, 0x001b);
+ lcd_write_reg(0x02, 0x0700);
+ lcd_write_reg(0x03, 0x7038);
+ lcd_write_reg(0x04, 0x7030);
+ lcd_write_reg(0x05, 0x0000);
+ lcd_write_reg(0x40, 0x0000);
+ lcd_write_reg(0x41, 0x0000);
+ lcd_write_reg(0x42, 0xdb00);
+ lcd_write_reg(0x43, 0x0000);
+ lcd_write_reg(0x44, 0xaf00);
+ lcd_write_reg(0x45, 0xdb00);
+
+ lcd_write_reg(0x0b, 0x0002);
+ lcd_write_reg(0x0c, 0x0003);
+ sleep(1);
+ lcd_write_reg(0x10, 0x4540);
+ lcd_write_reg(0x07, 0x0041);
+ sleep(1);
+ lcd_write_reg(0x08, 0x0808);
+ lcd_write_reg(0x09, 0x003f);
+ sleep(1);
+ lcd_write_reg(0x07, 0x0636);
+ sleep(1);
+ lcd_write_reg(0x07, 0x0626);
+ sleep(1);
+ lcd_write_reg(0x30, 0x0003);
+ lcd_write_reg(0x31, 0x0707);
+ lcd_write_reg(0x32, 0x0007);
+ lcd_write_reg(0x33, 0x0705);
+ lcd_write_reg(0x34, 0x0007);
+ lcd_write_reg(0x35, 0x0000);
+ lcd_write_reg(0x36, 0x0407);
+ lcd_write_reg(0x37, 0x0507);
+ lcd_write_reg(0x38, 0x1d09);
+ lcd_write_reg(0x39, 0x0303);
+
+ lcd_write_reg(0x13, 0x2610);
+
+ /* LCD ON */
+ lcd_write_reg(0x07, 0x0061);
+ sleep(1);
+ lcd_write_reg(0x07, 0x0067);
+ sleep(1);
+ lcd_write_reg(0x07, 0x0637);
+}
+
+/*** update functions ***/
+
+/* Performance function that works with an external buffer
+ note that by and bheight are in 8-pixel units! */
+void lcd_blit(const fb_data* data, int x, int by, int width,
+ int bheight, int stride)
+{
+ /* TODO: Implement lcd_blit() */
+ (void)data;
+ (void)x;
+ (void)by;
+ (void)width;
+ (void)bheight;
+ (void)stride;
+}
+
+
+/* Update the display.
+ This must be called after all other LCD functions that change the display. */
+void lcd_update(void) ICODE_ATTR;
+void lcd_update(void)
+{
+ /* Copy display bitmap to hardware */
+ lcd_write_reg(0x21, 0);
+ lcd_begin_write_gram();
+ lcd_write_data((unsigned short *)lcd_framebuffer, LCD_WIDTH*LCD_HEIGHT);
+}
+
+/* Update a fraction of the display. */
+void lcd_update_rect(int, int, int, int) ICODE_ATTR;
+void lcd_update_rect(int x, int y, int width, int height)
+{
+ int ymax = y + height;
+
+ if(x + width > LCD_WIDTH)
+ width = LCD_WIDTH - x;
+ if (width <= 0)
+ return; /* nothing left to do, 0 is harmful to lcd_write_data() */
+ if(ymax >= LCD_HEIGHT)
+ ymax = LCD_HEIGHT-1;
+
+ /* Copy specified rectangle bitmap to hardware */
+ for (; y <= ymax; y++)
+ {
+ lcd_write_reg(0x21, (x << 8) + y);
+ lcd_begin_write_gram();
+ lcd_write_data ((unsigned short *)&lcd_framebuffer[y][x], width);
+ }
+}
+#endif /* !SIMULATOR */