1 files changed, 103 insertions, 0 deletions

diff --git a/firmware/target/arm/as3525/sansa-clipzip/lcd-clipzip.c b/firmware/target/arm/as3525/sansa-clipzip/lcd-clipzip.c
new file mode 100644
index 0000000000..8efbdf77b9
--- /dev/null
+++ b/firmware/target/arm/as3525/sansa-clipzip/lcd-clipzip.c
@@ -0,0 +1,103 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   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 "lcd-clip.h"
+#include "system.h"
+#include "cpu.h"
+
+static int display_type;
+
+int lcd_hw_init(void)
+{
+    bitset32(&CGU_PERI, CGU_SSP_CLOCK_ENABLE);
+
+    SSP_CPSR = AS3525_SSP_PRESCALER;    /* OF = 0x10 */
+    SSP_CR0 = (1<<7) | (1<<6) | 7;  /* Motorola SPI frame format, 8 bits */
+    SSP_CR1 = (1<<3) | (1<<1);  /* SSP Operation enabled */
+    SSP_IMSC = 0;       /* No interrupts */
+
+    /* configure GPIO B2 (display D/C#) as output */
+    GPIOB_DIR |= (1<<2);
+
+    /* configure GPIO B3 (display type detect) as input */
+    GPIOB_DIR &= ~(1<<3);
+
+    /* set GPIO A5 (display RESET# ?) */
+    GPIOA_DIR |= (1<<5);
+    GPIOA_PIN(5) = (1<<5);
+
+    /* detect display type on GPIO B3 */    
+    return GPIOB_PIN(3) ? 1 : 0;
+}
+
+void lcd_write_command(int byte)
+{
+    while(SSP_SR & (1<<4))  /* BSY flag */
+        ;
+
+    /* LCD command mode */
+    GPIOB_PIN(2) = 0;
+    
+    SSP_DATA = byte;
+    while(SSP_SR & (1<<4))  /* BSY flag */
+        ;
+}
+
+void lcd_write_data(const fb_data* p_bytes, int count)
+{
+    /* LCD data mode */
+    GPIOB_PIN(2) = (1<<2);
+
+    while (count--)
+    {
+        while(!(SSP_SR & (1<<1)))   /* wait until transmit FIFO is not full */
+            ;
+
+        SSP_DATA = *p_bytes++;
+    }
+}
+
+void lcd_update(void)
+{
+    /* TODO */
+}
+
+void lcd_init_device(void)
+{
+    /* TODO */
+    display_type = lcd_hw_init();
+}
+
+/* Update a fraction of the display. */
+void lcd_update_rect(int x, int y, int width, int height)
+{
+    (void) x;
+    (void) y;
+    (void) width;
+    (void) height;
+    
+    /* TODO not implemented yet, do a full update instead */
+    lcd_update();
+}
+