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Diffstat (limited to 'arch/mips/ddb5xxx/ddb5477/lcd44780.c')
-rw-r--r--arch/mips/ddb5xxx/ddb5477/lcd44780.c96
1 files changed, 0 insertions, 96 deletions
diff --git a/arch/mips/ddb5xxx/ddb5477/lcd44780.c b/arch/mips/ddb5xxx/ddb5477/lcd44780.c
deleted file mode 100644
index 9510b9ae645..00000000000
--- a/arch/mips/ddb5xxx/ddb5477/lcd44780.c
+++ /dev/null
@@ -1,96 +0,0 @@
-/*
- * lcd44780.c
- * Simple "driver" for a memory-mapped 44780-style LCD display.
- *
- * Copyright 2001 Bradley D. LaRonde <brad@ltc.com>
- *
- * 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.
- *
- */
-
-#define LCD44780_COMMAND ((volatile unsigned char *)0xbe020000)
-#define LCD44780_DATA ((volatile unsigned char *)0xbe020001)
-
-#define LCD44780_4BIT_1LINE 0x20
-#define LCD44780_4BIT_2LINE 0x28
-#define LCD44780_8BIT_1LINE 0x30
-#define LCD44780_8BIT_2LINE 0x38
-#define LCD44780_MODE_DEC 0x04
-#define LCD44780_MODE_DEC_SHIFT 0x05
-#define LCD44780_MODE_INC 0x06
-#define LCD44780_MODE_INC_SHIFT 0x07
-#define LCD44780_SCROLL_LEFT 0x18
-#define LCD44780_SCROLL_RIGHT 0x1e
-#define LCD44780_CURSOR_UNDERLINE 0x0e
-#define LCD44780_CURSOR_BLOCK 0x0f
-#define LCD44780_CURSOR_OFF 0x0c
-#define LCD44780_CLEAR 0x01
-#define LCD44780_BLANK 0x08
-#define LCD44780_RESTORE 0x0c // Same as CURSOR_OFF
-#define LCD44780_HOME 0x02
-#define LCD44780_LEFT 0x10
-#define LCD44780_RIGHT 0x14
-
-void lcd44780_wait(void)
-{
- int i, j;
- for(i=0; i < 400; i++)
- for(j=0; j < 10000; j++);
-}
-
-void lcd44780_command(unsigned char c)
-{
- *LCD44780_COMMAND = c;
- lcd44780_wait();
-}
-
-void lcd44780_data(unsigned char c)
-{
- *LCD44780_DATA = c;
- lcd44780_wait();
-}
-
-void lcd44780_puts(const char* s)
-{
- int j;
- int pos = 0;
-
- lcd44780_command(LCD44780_CLEAR);
- while(*s) {
- lcd44780_data(*s);
- s++;
- pos++;
- if (pos == 8) {
- /* We must write 32 of spaces to get cursor to 2nd line */
- for (j=0; j<32; j++) {
- lcd44780_data(' ');
- }
- }
- if (pos == 16) {
- /* We have filled all 16 character positions, so stop
- outputing data */
- break;
- }
- }
-#ifdef LCD44780_PUTS_PAUSE
- {
- int i;
-
- for(i = 1; i < 2000; i++)
- lcd44780_wait();
- }
-#endif
-}
-
-void lcd44780_init(void)
-{
- // The display on the RockHopper is physically a single
- // 16 char line (two 8 char lines concatenated). bdl
- lcd44780_command(LCD44780_8BIT_2LINE);
- lcd44780_command(LCD44780_MODE_INC);
- lcd44780_command(LCD44780_CURSOR_BLOCK);
- lcd44780_command(LCD44780_CLEAR);
-}