1 files changed, 89 insertions, 0 deletions

diff --git a/firmware/target/arm/as3525/sansa-clip/lcd-clip.c b/firmware/target/arm/as3525/sansa-clip/lcd-clip.c
new file mode 100644
index 0000000000..9df006ac69
--- /dev/null
+++ b/firmware/target/arm/as3525/sansa-clip/lcd-clip.c
@@ -0,0 +1,89 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2008 François Dinel
+ * Copyright (C) 2008-2009 Rafaël Carré
+ *
+ * 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#include "config.h"
+
+#include "lcd.h"
+#include "system.h"
+#include "cpu.h"
+
+void lcd_hw_init(void)
+{
+/* DBOP initialisation, do what OF does */
+    CGU_DBOP = (1<<3) | AS3525_DBOP_DIV;
+
+    GPIOB_AFSEL = 0x08; /* DBOP on pin 3 */
+    GPIOC_AFSEL = 0x0f; /* DBOP on pins 3:0 */
+
+    DBOP_CTRL      = 0x51008;
+    DBOP_TIMPOL_01 = 0x6E167;
+    DBOP_TIMPOL_23 = 0xA167E06F;
+
+    GPIOA_DIR |= 0x33; /* pins 5:4 and 1:0 out */
+    GPIOB_DIR |= 0x40; /* pin 6 out */
+
+    GPIOA_PIN(1) = (1<<1);
+    GPIOA_PIN(0) = (1<<0);
+    GPIOA_PIN(4) = 0;
+    GPIOB_PIN(6) = (1<<6);
+}
+
+#define LCD_DELAY 1
+
+void lcd_write_command(int byte)
+{
+    volatile int i = 0;
+    while(i<LCD_DELAY) i++;
+
+    /* unset D/C# (data or command) */
+    GPIOA_PIN(5) = 0;
+
+    /* Write command */
+    /* Only bits 15:12 and 3:0 of DBOP_DOUT are meaningful */
+    DBOP_DOUT = (byte << 8) | byte;
+
+    /* While push fifo is not empty */
+    while ((DBOP_STAT & (1<<10)) == 0)
+        ;
+}
+
+void lcd_write_data(const fb_data* p_bytes, int count)
+{
+    volatile int i = 0;
+    while(i<LCD_DELAY) i++;
+
+    /* set D/C# (data or command) */
+    GPIOA_PIN(5) = (1<<5);
+
+    while (count--)
+    {
+        /* Write pixels */
+        /* Only bits 15:12 and 3:0 of DBOP_DOUT are meaningful */
+        DBOP_DOUT = (*p_bytes << 8) | *p_bytes;
+
+        p_bytes++; /* next packed pixels */
+
+        /* Wait if push fifo is full */
+        while ((DBOP_STAT & (1<<6)) != 0);
+    }
+    /* While push fifo is not empty */
+    while ((DBOP_STAT & (1<<10)) == 0);
+}