LCD driver for iAudio X5

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8807 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 299 insertions, 0 deletions

diff --git a/firmware/target/coldfire/iaudio/x5/lcd-x5.c b/firmware/target/coldfire/iaudio/x5/lcd-x5.c
new file mode 100755
index 0000000000..81ceee67e9
--- /dev/null
+++ b/firmware/target/coldfire/iaudio/x5/lcd-x5.c
@@ -0,0 +1,299 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   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"
+
+static bool display_on=false; /* is the display turned on? */
+
+/* register defines for the Renesas HD66773R */
+#define R_HORIZ_RAM_ADDR_POS    0x16
+#define R_VERT_RAM_ADDR_POS     0x17
+#define R_RAM_ADDR_SET  0x21
+#define R_WRITE_DATA_2_GRAM 0x22
+
+/* Lookup tables for 16->18bit conversion */
+short low8to9[] = {
+  0x000, 0x001, 0x002, 0x003, 0x004, 0x005, 0x006, 0x007, 0x010, 0x011, 0x012,
+  0x013, 0x014, 0x015, 0x016, 0x017, 0x020, 0x021, 0x022, 0x023, 0x024, 0x025,
+  0x026, 0x027, 0x030, 0x031, 0x032, 0x033, 0x034, 0x035, 0x036, 0x037, 0x040,
+  0x041, 0x042, 0x043, 0x044, 0x045, 0x046, 0x047, 0x050, 0x051, 0x052, 0x053,
+  0x054, 0x055, 0x056, 0x057, 0x060, 0x061, 0x062, 0x063, 0x064, 0x065, 0x066,
+  0x067, 0x070, 0x071, 0x072, 0x073, 0x074, 0x075, 0x076, 0x077, 0x080, 0x081,
+  0x082, 0x083, 0x084, 0x085, 0x086, 0x087, 0x090, 0x091, 0x092, 0x093, 0x094,
+  0x095, 0x096, 0x097, 0x0a0, 0x0a1, 0x0a2, 0x0a3, 0x0a4, 0x0a5, 0x0a6, 0x0a7,
+  0x0b0, 0x0b1, 0x0b2, 0x0b3, 0x0b4, 0x0b5, 0x0b6, 0x0b7, 0x0c0, 0x0c1, 0x0c2,
+  0x0c3, 0x0c4, 0x0c5, 0x0c6, 0x0c7, 0x0d0, 0x0d1, 0x0d2, 0x0d3, 0x0d4, 0x0d5,
+  0x0d6, 0x0d7, 0x0e0, 0x0e1, 0x0e2, 0x0e3, 0x0e4, 0x0e5, 0x0e6, 0x0e7, 0x0f0,
+  0x0f1, 0x0f2, 0x0f3, 0x0f4, 0x0f5, 0x0f6, 0x0f7, 0x100, 0x101, 0x102, 0x103,
+  0x104, 0x105, 0x106, 0x107, 0x110, 0x111, 0x112, 0x113, 0x114, 0x115, 0x116,
+  0x117, 0x120, 0x121, 0x122, 0x123, 0x124, 0x125, 0x126, 0x127, 0x130, 0x131,
+  0x132, 0x133, 0x134, 0x135, 0x136, 0x137, 0x140, 0x141, 0x142, 0x143, 0x144,
+  0x145, 0x146, 0x147, 0x150, 0x151, 0x152, 0x153, 0x154, 0x155, 0x156, 0x157,
+  0x160, 0x161, 0x162, 0x163, 0x164, 0x165, 0x166, 0x167, 0x170, 0x171, 0x172,
+  0x173, 0x174, 0x175, 0x176, 0x177, 0x180, 0x181, 0x182, 0x183, 0x184, 0x185,
+  0x186, 0x187, 0x190, 0x191, 0x192, 0x193, 0x194, 0x195, 0x196, 0x197, 0x1a0,
+  0x1a1, 0x1a2, 0x1a3, 0x1a4, 0x1a5, 0x1a6, 0x1a7, 0x1b0, 0x1b1, 0x1b2, 0x1b3,
+  0x1b4, 0x1b5, 0x1b6, 0x1b7, 0x1c0, 0x1c1, 0x1c2, 0x1c3, 0x1c4, 0x1c5, 0x1c6,
+  0x1c7, 0x1d0, 0x1d1, 0x1d2, 0x1d3, 0x1d4, 0x1d5, 0x1d6, 0x1d7, 0x1e0, 0x1e1,
+  0x1e2, 0x1e3, 0x1e4, 0x1e5, 0x1e6, 0x1e7, 0x1f0, 0x1f1, 0x1f2, 0x1f3, 0x1f4,
+  0x1f5, 0x1f6, 0x1f7,
+};
+short high8to9[] = {
+  0x000, 0x002, 0x004, 0x006, 0x008, 0x00a, 0x00c, 0x00e, 0x010, 0x012, 0x014,
+  0x016, 0x018, 0x01a, 0x01c, 0x01e, 0x020, 0x022, 0x024, 0x026, 0x028, 0x02a,
+  0x02c, 0x02e, 0x030, 0x032, 0x034, 0x036, 0x038, 0x03a, 0x03c, 0x03e, 0x040,
+  0x042, 0x044, 0x046, 0x048, 0x04a, 0x04c, 0x04e, 0x050, 0x052, 0x054, 0x056,
+  0x058, 0x05a, 0x05c, 0x05e, 0x060, 0x062, 0x064, 0x066, 0x068, 0x06a, 0x06c,
+  0x06e, 0x070, 0x072, 0x074, 0x076, 0x078, 0x07a, 0x07c, 0x07e, 0x080, 0x082,
+  0x084, 0x086, 0x088, 0x08a, 0x08c, 0x08e, 0x090, 0x092, 0x094, 0x096, 0x098,
+  0x09a, 0x09c, 0x09e, 0x0a0, 0x0a2, 0x0a4, 0x0a6, 0x0a8, 0x0aa, 0x0ac, 0x0ae,
+  0x0b0, 0x0b2, 0x0b4, 0x0b6, 0x0b8, 0x0ba, 0x0bc, 0x0be, 0x0c0, 0x0c2, 0x0c4,
+  0x0c6, 0x0c8, 0x0ca, 0x0cc, 0x0ce, 0x0d0, 0x0d2, 0x0d4, 0x0d6, 0x0d8, 0x0da,
+  0x0dc, 0x0de, 0x0e0, 0x0e2, 0x0e4, 0x0e6, 0x0e8, 0x0ea, 0x0ec, 0x0ee, 0x0f0,
+  0x0f2, 0x0f4, 0x0f6, 0x0f8, 0x0fa, 0x0fc, 0x0fe, 0x100, 0x102, 0x104, 0x106,
+  0x108, 0x10a, 0x10c, 0x10e, 0x110, 0x112, 0x114, 0x116, 0x118, 0x11a, 0x11c,
+  0x11e, 0x120, 0x122, 0x124, 0x126, 0x128, 0x12a, 0x12c, 0x12e, 0x130, 0x132,
+  0x134, 0x136, 0x138, 0x13a, 0x13c, 0x13e, 0x140, 0x142, 0x144, 0x146, 0x148,
+  0x14a, 0x14c, 0x14e, 0x150, 0x152, 0x154, 0x156, 0x158, 0x15a, 0x15c, 0x15e,
+  0x160, 0x162, 0x164, 0x166, 0x168, 0x16a, 0x16c, 0x16e, 0x170, 0x172, 0x174,
+  0x176, 0x178, 0x17a, 0x17c, 0x17e, 0x180, 0x182, 0x184, 0x186, 0x188, 0x18a,
+  0x18c, 0x18e, 0x190, 0x192, 0x194, 0x196, 0x198, 0x19a, 0x19c, 0x19e, 0x1a0,
+  0x1a2, 0x1a4, 0x1a6, 0x1a8, 0x1aa, 0x1ac, 0x1ae, 0x1b0, 0x1b2, 0x1b4, 0x1b6,
+  0x1b8, 0x1ba, 0x1bc, 0x1be, 0x1c0, 0x1c2, 0x1c4, 0x1c6, 0x1c8, 0x1ca, 0x1cc,
+  0x1ce, 0x1d0, 0x1d2, 0x1d4, 0x1d6, 0x1d8, 0x1da, 0x1dc, 0x1de, 0x1e0, 0x1e2,
+  0x1e4, 0x1e6, 0x1e8, 0x1ea, 0x1ec, 0x1ee, 0x1f0, 0x1f2, 0x1f4, 0x1f6, 0x1f8,
+  0x1fa, 0x1fc, 0x1fe,
+};
+
+/* called very frequently - inline! */
+inline void lcd_write_reg(int reg, int val)
+{
+    *(volatile unsigned short *)0xf0008000 = (reg >> 8) << 1;
+    *(volatile unsigned short *)0xf0008000 = (reg & 0xff) << 1;
+    *(volatile unsigned short *)0xf0008002 = (val >> 8) << 1;
+    *(volatile unsigned short *)0xf0008002 = (val & 0xff) << 1;
+}
+
+/* called very frequently - inline! */
+inline void lcd_begin_write_gram(void)
+{
+    *(volatile unsigned short *)0xf0008000 = (R_WRITE_DATA_2_GRAM >> 8) << 1;
+    *(volatile unsigned short *)0xf0008000 = (R_WRITE_DATA_2_GRAM & 0xff) << 1;
+}
+
+/* called very frequently - inline! */
+inline void lcd_write_data(const unsigned short* p_bytes, int count) ICODE_ATTR;
+inline void lcd_write_data(const unsigned short* p_bytes, int count)
+{
+    unsigned short tmp;
+    while(count--) {
+        tmp = *p_bytes++;
+        *(volatile unsigned short *)0xf0008002 = high8to9[tmp >> 8];
+        *(volatile unsigned short *)0xf0008002 = low8to9[tmp&255];
+    }
+}
+
+/*** hardware configuration ***/
+
+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;
+}
+
+/* LCD init
+ * These settings are taken from the original X5 firmware
+ */
+void lcd_init_device(void)
+{
+    display_on=true;
+
+    /* LCD Reset */
+    and_l(~0x00000010, &GPIO1_OUT);
+    or_l(0x00000010, &GPIO1_ENABLE);
+    or_l(0x00000010, &GPIO1_FUNCTION);
+    sleep(HZ/100);
+    or_l(0x00000010, &GPIO1_OUT);
+
+    sleep(HZ/100);
+
+    lcd_write_reg(0, 0x0001);
+    
+    sleep(HZ/50);
+    
+    lcd_write_reg(0x0d, 0x0401);
+    lcd_write_reg(0x0e, 0x321e);
+    lcd_write_reg(0x01, 0x0113);
+    lcd_write_reg(0x02, 0x0700);
+    lcd_write_reg(0x05, 0x9018);
+    lcd_write_reg(0x06, 0x0000);
+    lcd_write_reg(0x0b, 0x4000);
+    
+    sleep(HZ/100);
+    
+    lcd_write_reg(0x21,0x0000);
+    lcd_write_reg(0x30,0x0003);
+    lcd_write_reg(0x31,0x0400);
+    lcd_write_reg(0x32,0x0407);
+    lcd_write_reg(0x33,0x0305);
+    lcd_write_reg(0x34,0x0003);
+    lcd_write_reg(0x35,0x0704);
+    lcd_write_reg(0x36,0x0407);
+    lcd_write_reg(0x37,0x0503);
+    lcd_write_reg(0x0f,0x0000);
+    lcd_write_reg(0x11,0x0000);
+    lcd_write_reg(0x14,0x9f00);
+    lcd_write_reg(0x15,0x5c00);
+    lcd_write_reg(0x16,0x7f00);
+    lcd_write_reg(0x17,0x9f00);
+    lcd_write_reg(0x3a,0x1409);
+    lcd_write_reg(0x3b,0x0602);
+    
+    lcd_write_reg(0x0c,0x0001);
+
+    sleep(HZ/25);
+    
+    lcd_write_reg(0x03,0x002c);
+    lcd_write_reg(0x04,0x8000);
+
+    sleep(HZ/25);
+    
+    lcd_write_reg(0x0e,0x3318);
+    
+    sleep(HZ/25);
+    
+    lcd_write_reg(0x0d,0x0411);
+
+    sleep(HZ/100);
+    
+    lcd_write_reg(0x07,0x0006);
+    lcd_write_reg(0x07,0x036);
+    lcd_write_reg(0x07,0x037);
+    lcd_write_reg(0x07,0x0037);
+    return;
+}
+
+void lcd_enable(bool on)
+{
+    display_on = on;
+}
+
+/*** 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;
+    /*if(display_on)*/ 
+}
+
+
+/* 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)
+{
+    if(display_on){
+
+        /* Copy display bitmap to hardware */
+        lcd_write_reg(R_RAM_ADDR_SET, 0x0000);
+        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)
+{
+    if(display_on) {    
+        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;
+
+        /* set update window */ 
+
+        /* horiz ram addr */ 
+        lcd_write_reg(R_HORIZ_RAM_ADDR_POS, (ymax<<8) | y); 
+        
+        /* vert ram addr */ 
+        lcd_write_reg(R_VERT_RAM_ADDR_POS,((x+width-1)<<8) | x); 
+        lcd_write_reg(R_RAM_ADDR_SET, (x<<8) | y); 
+        lcd_begin_write_gram(); 
+
+        /* Copy specified rectangle bitmap to hardware */ 
+        for (; y <= ymax; y++) 
+        { 
+            lcd_write_data ((unsigned short *)&lcd_framebuffer[y][x], width); 
+        } 
+
+        /* reset update window */ 
+        /* horiz ram addr: 0 - 175 */ 
+        lcd_write_reg(R_HORIZ_RAM_ADDR_POS, 0xaf00); 
+
+        /* vert ram addr: 0 - 219 */  
+        lcd_write_reg(R_VERT_RAM_ADDR_POS, 0xdb00); 
+    }
+}