Update of /cvsroot/blob/blob/src/diag
In directory usw-pr-cvs1:/tmp/cvs-serv13752
Modified Files:
lcd.c
Log Message:
- generic LCD support and test functions
- these functions can be overwritten by other modules to
add platform specific behavior
Index: lcd.c
===================================================================
RCS file: /cvsroot/blob/blob/src/diag/lcd.c,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -d -r1.1 -r1.2
--- lcd.c 2001/10/09 16:48:12 1.1
+++ lcd.c 2001/10/09 17:53:37 1.2
@@ -0,0 +1,227 @@
+/**********************************************************************
+ * lcd.c
+ *
+ * AUTOR: SELETZ
+ *
+ * Generic lcd framework
+ *
+ * Copyright (C) 2001 Stefan Eletzhofer <ste...@ww...>
+ *
+ * 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
+ */
+
+/**********************************************************************
+ * includes
+ */
+#ifdef HAVE_CONFIG_H
+# include <blob/config.h>
+#endif
+
+#include <blob/types.h>
+#include <blob/errno.h>
+#include <blob/util.h>
+#include <blob/command.h>
+#include <blob/serial.h>
+#include <blob/sa1100.h>
+#include <blob/sa1111.h>
+
+#include <blob/lcd.h>
+
+/**********************************************************************
+ * defines
+ */
+#define WEAK_SYM __attribute__ (( weak ))
+
+#define MEM(adr) (*((u32 *)adr))
+#define SET(reg,bit) ((reg) |= (1<<(bit)))
+#define CLR(reg,bit) ((reg) &= ~(1<<(bit)))
+
+/**********************************************************************
+ * program globals
+ */
+
+/**********************************************************************
+ * module globals
+ */
+
+u16 *lcd_palette = (u16*)(LCD_PALETTE_DMA_ADR);
+
+/**********************************************************************
+ * Prototypes
+ */
+void lcd_palette_set( int no, int val );
+
+/**********************************************************************/
+/**********************************************************************/
+/**********************************************************************/
+
+/**********************************************************************
+ * Do whatever necessary to power up lcd display
+ */
+int WEAK_SYM lcd_power_up( void )
+{
+ return 0;
+}
+
+int WEAK_SYM lcd_power_down( void )
+{
+ return 0;
+}
+
+int WEAK_SYM lcd_gpio_setup( void )
+{
+ GPDR |= 0x3FC;
+ GAFR |= 0x3FC;
+
+ return 0;
+}
+
+int WEAK_SYM lcd_controller_enable( void )
+{
+ lcd_palette[0] &= 0xcfff;
+ lcd_palette[0] |= 2<<16; // 8 bpp
+
+ /* Sequence from 11.7.10 */
+ LCCR3 = LCD_LCCR3;
+ LCCR2 = LCD_LCCR2;
+ LCCR1 = LCD_LCCR1;
+ LCCR0 = LCD_LCCR0 & ~LCCR0_LEN;
+ DBAR1 = (u32 *)LCD_PALETTE_DMA_ADR;
+ DBAR2 = (u32 *)LCD_VIDEORAM_DMA_ADR;
+ LCCR0 |= LCCR0_LEN;
+ return 0;
+}
+
+int WEAK_SYM lcd_controller_disable( void )
+{
+ LCCR0 &= ~LCCR0_LEN;
+ return 0;
+}
+
+int WEAK_SYM lcd_backlight_on( void )
+{
+ return 0;
+}
+
+int WEAK_SYM lcd_backlight_off( void )
+{
+ return 0;
+}
+
+int WEAK_SYM lcd_palette_setup( void )
+{
+ int n;
+
+ for ( n = 0 ; n < 128 ; n++ ) {
+ lcd_palette_set(n, 0x1FFF );
+ }
+ for ( n = 128 ; n < 256 ; n++ ) {
+ lcd_palette_set(n, 0x1000 );
+ }
+
+ return 0;
+}
+
+int WEAK_SYM lcd_contrast( int value )
+{
+ return 0;
+}
+
+int WEAK_SYM lcd_brightness( int value )
+{
+ return 0;
+}
+
+static char testlcdhelp[] = "lcdtest\nTests lcd display\n";
+__commandlist(lcd_test, "lcdtest", testlcdhelp);
+
+int WEAK_SYM lcd_test( void )
+{
+ int ret = 0;
+ int x,y;
+ char c;
+
+ SerialOutputString( "LCD: power up ..." );
+ ret = lcd_power_up();
+ if ( ret != 0 ) return ret;
+ SerialOutputString( "done\n" );
+
+ SerialOutputString( "LCD: gpio setup ..." );
+ ret = lcd_gpio_setup();
+ if ( ret != 0 ) return ret;
+ SerialOutputString( "done\n" );
+
+
+ SerialOutputString( "LCD: palette setup ..." );
+ ret = lcd_palette_setup();
+ if ( ret != 0 ) return ret;
+ SerialOutputString( "done\n" );
+
+
+ SerialOutputString( "LCD: controller enable ..." );
+ ret = lcd_controller_enable();
+ if ( ret != 0 ) return ret;
+ SerialOutputString( "done\n" );
+
+ SerialOutputString( "LCD: backlight on ..." );
+ ret = lcd_backlight_on();
+ if ( ret != 0 ) return ret;
+ SerialOutputString( "done\n" );
+
+
+ /* vertical lines */
+ SerialOutputString( "LCD: vertical lines test pattern ..." );
+ for ( y=0; y<LCD_ROWS; y++ ) {
+ for ( x=0; x<(LCD_COLS>>2); x++ ) {
+ MEM( LCD_VIDEORAM_START + (y*LCD_ROWS) + (x<<2) ) = 0xF0F0F0F0;
+ }
+ }
+ SerialOutputString( "done\n" );
+
+ SerialOutputString( "LCD: press any key to proceed\n" );
+ while ( !SerialInputByte( &c ) )
+ ;
+
+ SerialOutputString( "LCD: backlight off ..." );
+ ret = lcd_backlight_off();
+ if ( ret != 0 ) return ret;
+ SerialOutputString( "done\n" );
+
+ SerialOutputString( "LCD: controller disable ..." );
+ ret = lcd_controller_disable();
+ if ( ret != 0 ) return ret;
+ SerialOutputString( "done\n" );
+
+ SerialOutputString( "LCD: power down ..." );
+ ret = lcd_power_down();
+ if ( ret != 0 ) return ret;
+ SerialOutputString( "done\n" );
+
+ return 0;
+}
+
+/**********************************************************************
+ * Statische Funktionen
+ */
+
+void lcd_palette_set( int no, int val )
+{
+ if ( no < 0 || no > 255 )
+ return;
+
+ lcd_palette[ no ] = val;
+
+ return;
+}
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