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-rw-r--r--firmware/target/sh/archos/player/lcd-player.c235
1 files changed, 235 insertions, 0 deletions
diff --git a/firmware/target/sh/archos/player/lcd-player.c b/firmware/target/sh/archos/player/lcd-player.c
new file mode 100644
index 0000000000..7018b2277a
--- /dev/null
+++ b/firmware/target/sh/archos/player/lcd-player.c
@@ -0,0 +1,235 @@
1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id: lcd-player.c 12835 2007-03-18 17:58:49Z amiconn $
9 *
10 * Copyright (C) 2007 by Jens Arnold
11 * Based on the work of Alan Korr, Kjell Ericson and others
12 *
13 * All files in this archive are subject to the GNU General Public License.
14 * See the file COPYING in the source tree root for full license agreement.
15 *
16 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
17 * KIND, either express or implied.
18 *
19 ****************************************************************************/
20
21#include "config.h"
22#include <string.h>
23#include "hwcompat.h"
24#include "system.h"
25#include "lcd.h"
26
27#define OLD_LCD_CRAM ((char)0xB0) /* Characters */
28#define OLD_LCD_PRAM ((char)0x80) /* Patterns */
29#define OLD_LCD_IRAM ((char)0xE0) /* Icons */
30#define OLD_LCD_CONTRAST_SET ((char)0xA8)
31
32#define NEW_LCD_CRAM ((char)0x80) /* Characters */
33#define NEW_LCD_PRAM ((char)0xC0) /* Patterns */
34#define NEW_LCD_IRAM ((char)0x40) /* Icons */
35#define NEW_LCD_CONTRAST_SET ((char)0x50)
36#define NEW_LCD_FUNCTION_SET ((char)0x10)
37#define NEW_LCD_POWER_SAVE_MODE_OSC_CONTROL_SET ((char)0x0c)
38#define NEW_LCD_POWER_CONTROL_REGISTER_SET ((char)0x20)
39#define NEW_LCD_DISPLAY_CONTROL_SET ((char)0x28)
40#define NEW_LCD_SET_DOUBLE_HEIGHT ((char)0x08)
41
42#define LCD_CURSOR(x,y) ((char)(lcd_cram+((y)*16+(x))))
43#define LCD_ICON(i) ((char)(lcd_iram+i))
44
45static bool new_lcd;
46static char lcd_contrast_set;
47static char lcd_cram;
48static char lcd_pram;
49static char lcd_iram;
50
51/* hardware configuration */
52
53int lcd_default_contrast(void)
54{
55 return 30;
56}
57
58void lcd_set_contrast(int val)
59{
60 lcd_write_command_e(lcd_contrast_set, 31 - val);
61}
62
63/* charcell specific */
64
65void lcd_double_height(bool on)
66{
67 if(new_lcd)
68 lcd_write_command(on ? (NEW_LCD_SET_DOUBLE_HEIGHT|1)
69 : NEW_LCD_SET_DOUBLE_HEIGHT);
70}
71
72void lcd_put_hw_char(int x, int y, unsigned char hw_char)
73{
74 lcd_write_command_e(LCD_CURSOR(x, y), hw_char);
75}
76
77void lcd_define_hw_pattern (int which, const char *pattern)
78{
79 lcd_write_command(lcd_pram | (which << 3));
80 lcd_write_data(pattern, 7);
81}
82
83void lcd_icon(int icon, bool enable)
84{
85 static const struct {
86 char pos;
87 char mask;
88 } icontab[] = {
89 { 0, 0x02}, { 0, 0x08}, { 0, 0x04}, { 0, 0x10}, /* Battery */
90 { 2, 0x04}, /* USB */
91 { 3, 0x10}, /* Play */
92 { 4, 0x10}, /* Record */
93 { 5, 0x02}, /* Pause */
94 { 5, 0x10}, /* Audio */
95 { 6, 0x02}, /* Repeat */
96 { 7, 0x01}, /* 1 */
97 { 9, 0x04}, /* Volume */
98 { 9, 0x02}, { 9, 0x01}, {10, 0x08}, {10, 0x04}, {10, 0x01}, /* Vol 1-5 */
99 {10, 0x10}, /* Param */
100 };
101 static char icon_mirror[11] = {0};
102
103 int pos, mask;
104
105 pos = icontab[icon].pos;
106 mask = icontab[icon].mask;
107
108 if (enable)
109 icon_mirror[pos] |= mask;
110 else
111 icon_mirror[pos] &= ~mask;
112
113 lcd_write_command_e(LCD_ICON(pos), icon_mirror[pos]);
114}
115
116/* device specific init */
117void lcd_init_device(void)
118{
119 unsigned char data_vector[64];
120
121 new_lcd = is_new_player();
122
123 if (new_lcd)
124 {
125 lcd_contrast_set = NEW_LCD_CONTRAST_SET;
126 lcd_cram = NEW_LCD_CRAM;
127 lcd_pram = NEW_LCD_PRAM;
128 lcd_iram = NEW_LCD_IRAM;
129
130 /* LCD init for cold start */
131 PBCR2 &= 0xff00; /* Set PB0..PB3 to GPIO */
132 or_b(0x0f, &PBDRL); /* ... high */
133 or_b(0x0f, &PBIORL); /* ... and output */
134
135 lcd_write_command(NEW_LCD_FUNCTION_SET + 1); /* CGRAM selected */
136 lcd_write_command_e(NEW_LCD_CONTRAST_SET, 0x08);
137 lcd_write_command(NEW_LCD_POWER_SAVE_MODE_OSC_CONTROL_SET + 2);
138 /* oscillator on */
139 lcd_write_command(NEW_LCD_POWER_CONTROL_REGISTER_SET + 7);
140 /* opamp buffer + voltage booster on*/
141
142 memset(data_vector, 0x20, 64);
143 lcd_write_command(NEW_LCD_CRAM); /* Set DDRAM address */
144 lcd_write_data(data_vector, 64); /* all spaces */
145
146 memset(data_vector, 0, 64);
147 lcd_write_command(NEW_LCD_PRAM); /* Set CGRAM address */
148 lcd_write_data(data_vector, 64); /* zero out */
149 lcd_write_command(NEW_LCD_IRAM); /* Set ICONRAM address */
150 lcd_write_data(data_vector, 16); /* zero out */
151
152 lcd_write_command(NEW_LCD_DISPLAY_CONTROL_SET + 1); /* display on */
153 }
154 else
155 {
156 lcd_contrast_set = OLD_LCD_CONTRAST_SET;
157 lcd_cram = OLD_LCD_CRAM;
158 lcd_pram = OLD_LCD_PRAM;
159 lcd_iram = OLD_LCD_IRAM;
160
161#if 1
162 /* LCD init for cold start */
163 PBCR2 &= 0xff00; /* Set PB0..PB3 to GPIO */
164 or_b(0x0f, &PBDRL); /* ... high */
165 or_b(0x0f, &PBIORL); /* ... and output */
166
167 lcd_write_command(0x61);
168 lcd_write_command(0x42);
169 lcd_write_command(0x57);
170
171 memset(data_vector, 0x24, 13);
172 lcd_write_command(OLD_LCD_CRAM); /* Set DDRAM address */
173 lcd_write_data(data_vector, 13); /* all spaces */
174 lcd_write_command(OLD_LCD_CRAM + 0x10);
175 lcd_write_data(data_vector, 13);
176 lcd_write_command(OLD_LCD_CRAM + 0x20);
177 lcd_write_data(data_vector, 13);
178
179 memset(data_vector, 0, 32);
180 lcd_write_command(OLD_LCD_PRAM); /* Set CGRAM address */
181 lcd_write_data(data_vector, 32); /* zero out */
182 lcd_write_command(OLD_LCD_IRAM); /* Set ICONRAM address */
183 lcd_write_data(data_vector, 13); /* zero out */
184 lcd_write_command(OLD_LCD_IRAM + 0x10);
185 lcd_write_data(data_vector, 13);
186
187 lcd_write_command(0x31);
188#else
189 /* archos look-alike code, left here for reference. As soon as the
190 * rockbox version is confirmed working, this will go away */
191 {
192 int i;
193
194 PBCR2 &= 0xc000;
195 PBIOR |= 0x000f;
196 PBDR |= 0x0002;
197 PBDR |= 0x0001;
198 PBDR |= 0x0004;
199 PBDR |= 0x0008;
200
201 for (i=0; i<200; i++) asm volatile ("nop"); /* wait 100 us */
202
203 PBDR &= 0xfffd; /* CS low (assert) */
204
205 for (i=0; i<100; i++) asm volatile ("nop"); /* wait 50 us */
206
207 lcd_write_command(0x61);
208 lcd_write_command(0x42);
209 lcd_write_command(0x57);
210
211 memset(data_vector, 0x24, 13);
212 lcd_write_command(0xb0); /* Set DDRAM address */
213 lcd_write_data(data_vector, 13); /* all spaces */
214 lcd_write_command(0xc0);
215 lcd_write_data(data_vector, 13);
216 lcd_write_command(0xd0);
217 lcd_write_data(data_vector, 13);
218
219 memset(data_vector, 0, 32);
220 lcd_write_command(0x80); /* Set CGRAM address */
221 lcd_write_data(data_vector, 32); /* zero out */
222 lcd_write_command(0xe0); /* Set ICONRAM address */
223 lcd_write_data(data_vector, 13); /* zero out */
224 lcd_write_command(0xf0);
225 lcd_write_data(data_vector, 13);
226
227 for (i=0; i<300000; i++) asm volatile ("nop"); /* wait 150 ms */
228
229 lcd_write_command(0x31);
230 lcd_write_command_e(0xa8, 0); /* Set contrast control */
231 }
232#endif
233 }
234 lcd_set_contrast(lcd_default_contrast());
235}
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