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Diffstat (limited to 'firmware/target/arm/olympus/mrobe-100/lcd-mr100.c')
-rw-r--r--firmware/target/arm/olympus/mrobe-100/lcd-mr100.c192
1 files changed, 192 insertions, 0 deletions
diff --git a/firmware/target/arm/olympus/mrobe-100/lcd-mr100.c b/firmware/target/arm/olympus/mrobe-100/lcd-mr100.c
new file mode 100644
index 0000000000..501a0942e5
--- /dev/null
+++ b/firmware/target/arm/olympus/mrobe-100/lcd-mr100.c
@@ -0,0 +1,192 @@
1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
9 *
10 * Copyright (C) 2008 by Mark Arigo
11 *
12 * All files in this archive are subject to the GNU General Public License.
13 * See the file COPYING in the source tree root for full license agreement.
14 *
15 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
16 * KIND, either express or implied.
17 *
18 ****************************************************************************/
19#include "config.h"
20#include "cpu.h"
21#include "lcd.h"
22#include "kernel.h"
23#include "system.h"
24
25/* send LCD data */
26static void lcd_send_data(unsigned data)
27{
28 while (LCD1_CONTROL & LCD1_BUSY_MASK); /* wait for LCD */
29 LCD1_DATA = data;
30}
31
32/* send LCD command */
33static void lcd_send_command(unsigned cmd)
34{
35 while (LCD1_CONTROL & LCD1_BUSY_MASK); /* wait for LCD */
36 LCD1_CMD = cmd;
37}
38
39/* LCD init */
40void lcd_init_device(void)
41{
42 int i;
43
44 DEV_INIT1 &= ~0xfc000000;
45
46 i = DEV_INIT1;
47 DEV_INIT1 = i;
48
49 DEV_INIT2 &= ~0x400;
50 udelay(10000);
51
52 LCD1_CONTROL &= ~0x4;
53 udelay(15);
54
55 LCD1_CONTROL |= 0x4;
56 udelay(10);
57
58 LCD1_CONTROL = 0x690;
59 LCD1_CONTROL = 0x694;
60
61 /* OF just reads these */
62 i = LCD1_CONTROL;
63 i = inl(0x70003004);
64 i = LCD1_CMD;
65 i = inl(0x7000300c);
66
67#if 0
68 /* this is skipped in the OF */
69 LCD1_CONTROL &= ~0x200;
70 LCD1_CONTROL &= ~0x800;
71 LCD1_CONTROL &= ~0x400;
72#endif
73
74 LCD1_CONTROL |= 0x1;
75 udelay(15000);
76
77 lcd_send_command(0xe2);
78 lcd_send_command(0x2f);
79 lcd_send_command(0x26);
80 lcd_send_command(0xcc);
81 lcd_send_command(0xe8);
82 lcd_send_command(0x81);
83 lcd_send_command(0);
84 lcd_send_command(0x40);
85 lcd_send_command(0xa6);
86 lcd_send_command(0x88);
87 lcd_send_command(0xb0);
88 lcd_send_command(0x10);
89 lcd_send_command(0);
90}
91
92/*** hardware configuration ***/
93int lcd_default_contrast(void)
94{
95 return DEFAULT_CONTRAST_SETTING;
96}
97
98void lcd_set_contrast(int val)
99{
100 lcd_send_command(0x81);
101 lcd_send_command(val);
102}
103
104void lcd_set_invert_display(bool yesno)
105{
106 /* TODO: Implement lcd_set_invert_display() */
107 (void)yesno;
108}
109
110/* turn the display upside down (call lcd_update() afterwards) */
111void lcd_set_flip(bool yesno)
112{
113 /* TODO: Implement lcd_set_flip() */
114 (void)yesno;
115}
116
117/*** update functions ***/
118
119/* Performance function that works with an external buffer
120 note that by and bheight are in 4-pixel units! */
121void lcd_blit(const fb_data* data, int x, int by, int width,
122 int bheight, int stride)
123{
124 /* TODO: Implement lcd_blit() */
125 (void)data;
126 (void)x;
127 (void)by;
128 (void)width;
129 (void)bheight;
130 (void)stride;
131}
132
133/* Performance function to blit a YUV bitmap directly to the LCD */
134void lcd_yuv_blit(unsigned char * const src[3],
135 int src_x, int src_y, int stride,
136 int x, int y, int width, int height)
137{
138 (void)src;
139 (void)src_x;
140 (void)src_y;
141 (void)stride;
142 (void)x;
143 (void)y;
144 (void)width;
145 (void)height;
146}
147
148/* Update the display.
149 This must be called after all other LCD functions that change the display. */
150void lcd_update(void)
151{
152 lcd_update_rect(0, 0, LCD_WIDTH, LCD_HEIGHT);
153}
154
155/* Update a fraction of the display. */
156void lcd_update_rect(int x0, int y0, int width, int height)
157{
158 unsigned char *addr;
159 unsigned int cmd0, cmd1, cmd2;
160 int r, c, x1, y1, start_row, last_row;
161
162 x1 = (x0 + width) - 1;
163 y1 = (y0 + height) - 1;
164 if ((x1 <= 0) || (y1 <= 0))
165 return;
166
167 if(x1 >= LCD_WIDTH)
168 x1 = LCD_WIDTH - 1;
169
170 if(y1 >= LCD_HEIGHT)
171 y1 = LCD_HEIGHT - 1;
172
173 start_row = y0/8;
174 last_row = y1/8;
175
176 cmd1 = (x0 & 0xff) >> 4;
177 cmd1 = (cmd1 + 5) | 0x10;
178 cmd2 = x0 & 0xf;
179
180 for (r = start_row; r <= last_row; r++) {
181 cmd0 = (r & 0xff) | 0xb0;
182 lcd_send_command(cmd0);
183 lcd_send_command(cmd1);
184 lcd_send_command(cmd2);
185
186 addr = (unsigned char*)&lcd_framebuffer[r][x0];
187 for (c = x0; c <= x1; c++)
188 lcd_send_data(*(addr++));
189 }
190
191 lcd_send_command(0xaf);
192}