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authorDave Chapman <dave@dchapman.com>2008-10-19 14:11:01 +0000
committerDave Chapman <dave@dchapman.com>2008-10-19 14:11:01 +0000
commit08c41d42bb699a1be99c9696b4d4fb7b40e8723a (patch)
tree2834231979d52b81a7860fd4a5e19ed79b3ffee7 /firmware/target/arm/tcc77x
parent14ee31865e366dc19fb87caf4877a8d93305a01b (diff)
downloadrockbox-08c41d42bb699a1be99c9696b4d4fb7b40e8723a.tar.gz
rockbox-08c41d42bb699a1be99c9696b4d4fb7b40e8723a.zip
Add e200v2 and m200v2 targets. Move the telechips lcd-ssd1815.c (currently used by Logik DAX and m200v1 ports) driver up in the target tree and share with the m200v2 - as2525 parts contributed by Rafael Carre. Includes the start (but is still very incomplete) of an LCD driver for the e200v2. m200v2 is not yet fully supported by mkamsboot - that will come soon. Also some minor cleanups for the Clip.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18836 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'firmware/target/arm/tcc77x')
-rw-r--r--firmware/target/arm/tcc77x/lcd-ssd1815.c256
1 files changed, 0 insertions, 256 deletions
diff --git a/firmware/target/arm/tcc77x/lcd-ssd1815.c b/firmware/target/arm/tcc77x/lcd-ssd1815.c
deleted file mode 100644
index b41c8d26ef..0000000000
--- a/firmware/target/arm/tcc77x/lcd-ssd1815.c
+++ /dev/null
@@ -1,256 +0,0 @@
1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
9 *
10 * Copyright (C) 2002 by Alan Korr
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation; either version 2
15 * of the License, or (at your option) any later version.
16 *
17 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
18 * KIND, either express or implied.
19 *
20 ****************************************************************************/
21#include "config.h"
22
23#include "hwcompat.h"
24#include "kernel.h"
25#include "lcd.h"
26#include "system.h"
27#include "cpu.h"
28
29/*** definitions ***/
30
31#define LCD_SET_LOWER_COLUMN_ADDRESS ((char)0x00)
32#define LCD_SET_HIGHER_COLUMN_ADDRESS ((char)0x10)
33#define LCD_SET_INTERNAL_REGULATOR_RESISTOR_RATIO ((char)0x20)
34#define LCD_SET_POWER_CONTROL_REGISTER ((char)0x28)
35#define LCD_SET_DISPLAY_START_LINE ((char)0x40)
36#define LCD_SET_CONTRAST_CONTROL_REGISTER ((char)0x81)
37#define LCD_SET_SEGMENT_REMAP ((char)0xA0)
38#define LCD_SET_LCD_BIAS ((char)0xA2)
39#define LCD_SET_ENTIRE_DISPLAY_OFF ((char)0xA4)
40#define LCD_SET_ENTIRE_DISPLAY_ON ((char)0xA5)
41#define LCD_SET_NORMAL_DISPLAY ((char)0xA6)
42#define LCD_SET_REVERSE_DISPLAY ((char)0xA7)
43#define LCD_SET_MULTIPLEX_RATIO ((char)0xA8)
44#define LCD_SET_BIAS_TC_OSC ((char)0xA9)
45#define LCD_SET_1OVER4_BIAS_RATIO ((char)0xAA)
46#define LCD_SET_INDICATOR_OFF ((char)0xAC)
47#define LCD_SET_INDICATOR_ON ((char)0xAD)
48#define LCD_SET_DISPLAY_OFF ((char)0xAE)
49#define LCD_SET_DISPLAY_ON ((char)0xAF)
50#define LCD_SET_PAGE_ADDRESS ((char)0xB0)
51#define LCD_SET_COM_OUTPUT_SCAN_DIRECTION ((char)0xC0)
52#define LCD_SET_TOTAL_FRAME_PHASES ((char)0xD2)
53#define LCD_SET_DISPLAY_OFFSET ((char)0xD3)
54#define LCD_SET_READ_MODIFY_WRITE_MODE ((char)0xE0)
55#define LCD_SOFTWARE_RESET ((char)0xE2)
56#define LCD_NOP ((char)0xE3)
57#define LCD_SET_END_OF_READ_MODIFY_WRITE_MODE ((char)0xEE)
58
59/* LCD command codes */
60#define LCD_CNTL_RESET 0xe2 /* Software reset */
61#define LCD_CNTL_POWER 0x2f /* Power control */
62#define LCD_CNTL_CONTRAST 0x81 /* Contrast */
63#define LCD_CNTL_OUTSCAN 0xc8 /* Output scan direction */
64#define LCD_CNTL_SEGREMAP 0xa1 /* Segment remap */
65#define LCD_CNTL_DISPON 0xaf /* Display on */
66
67#define LCD_CNTL_PAGE 0xb0 /* Page address */
68#define LCD_CNTL_HIGHCOL 0x10 /* Upper column address */
69#define LCD_CNTL_LOWCOL 0x00 /* Lower column address */
70
71/* TCC77x specific defines */
72#define LCD_BASE 0x50000000
73#define LCD_CMD *(volatile unsigned char*)(LCD_BASE)
74#define LCD_DATA *(volatile unsigned char*)(LCD_BASE+1)
75
76void lcd_write_command(int byte)
77{
78 LCD_CMD = byte;
79
80 asm volatile (
81 "nop \n\t"
82 "nop \n\t"
83 "nop \n\t"
84 );
85}
86
87void lcd_write_data(const fb_data* p_bytes, int count)
88{
89 while (count--)
90 {
91 LCD_DATA = *(p_bytes++);
92
93 asm volatile (
94 "nop \n\t"
95 "nop \n\t"
96 "nop \n\t"
97 );
98 }
99}
100
101/* End of TCC77x specific defines */
102
103
104/** globals **/
105
106static int xoffset; /* needed for flip */
107
108/*** hardware configuration ***/
109
110int lcd_default_contrast(void)
111{
112 return 0x1f;
113}
114
115void lcd_set_contrast(int val)
116{
117 lcd_write_command(LCD_CNTL_CONTRAST);
118 lcd_write_command(val);
119}
120
121void lcd_set_invert_display(bool yesno)
122{
123 if (yesno)
124 lcd_write_command(LCD_SET_REVERSE_DISPLAY);
125 else
126 lcd_write_command(LCD_SET_NORMAL_DISPLAY);
127}
128
129/* turn the display upside down (call lcd_update() afterwards) */
130void lcd_set_flip(bool yesno)
131{
132 (void)yesno;
133 /* TODO */
134}
135
136
137/* LCD init */
138void lcd_init_device(void)
139{
140 uint32_t bus_width;
141
142 /* Telechips init the same as the original firmware */
143 CSCFG1 &= 0xc3ffc000;
144 CSCFG1 |= 0x3400101a;
145 CSCFG1 |= (1 << 21);
146 CSCFG1 &= ~(1 << 21);
147
148 bus_width = ((MCFG >> 11) & 0x3) ^ 3;
149
150 CSCFG1 = (bus_width << 28) |
151 (3 << 26) | /* MTYPE = 3 */
152 ((LCD_BASE >> 28) << 22) | /* CSBASE = 0x5 */
153 (1 << 20) | /* Unknown */
154 (3 << 11) | /* Setup time = 3 cycles */
155 (3 << 3) | /* Pulse width = 3+1 cycles */
156 (1 << 0); /* Hold time = 1 cycle */
157
158 /* SSD1815 inits like the original firmware */
159 lcd_write_command(LCD_SET_DISPLAY_OFF);
160 lcd_set_flip(false);
161 lcd_write_command(LCD_SET_INTERNAL_REGULATOR_RESISTOR_RATIO | 5);
162 lcd_set_contrast(lcd_default_contrast());
163 lcd_write_command(LCD_SET_POWER_CONTROL_REGISTER | 7);
164 /* power control register: op-amp=1, regulator=1, booster=1 */
165 lcd_write_command(LCD_SET_BIAS_TC_OSC);
166
167 /* 0xc2 = 110 000 10: Osc. Freq 110 - ???
168 TC value 000 - "-0.01%/C (TC0, POR)"
169 Bias ratio 10 - "1/9, 1/7 (POR)"
170 */
171 lcd_write_command(0xc2);
172 lcd_write_command(LCD_SET_DISPLAY_ON);
173
174 lcd_clear_display();
175 lcd_update();
176}
177
178/*** Update functions ***/
179
180/* Performance function that works with an external buffer
181 note that by and bheight are in 8-pixel units! */
182void lcd_blit_mono(const unsigned char *data, int x, int by, int width,
183 int bheight, int stride)
184{
185 /* Copy display bitmap to hardware */
186 while (bheight--)
187 {
188 lcd_write_command (LCD_CNTL_PAGE | (by++ & 0xf));
189 lcd_write_command (LCD_CNTL_HIGHCOL | (((x+xoffset)>>4) & 0xf));
190 lcd_write_command (LCD_CNTL_LOWCOL | ((x+xoffset) & 0xf));
191
192 lcd_write_data(data, width);
193 data += stride;
194 }
195}
196
197
198/* Performance function that works with an external buffer
199 note that by and bheight are in 8-pixel units! */
200void lcd_blit_grey_phase(unsigned char *values, unsigned char *phases,
201 int x, int by, int width, int bheight, int stride)
202{
203 (void)values;
204 (void)phases;
205 (void)x;
206 (void)by;
207 (void)width;
208 (void)bheight;
209 (void)stride;
210}
211
212/* Update the display.
213 This must be called after all other LCD functions that change the display. */
214void lcd_update(void) ICODE_ATTR;
215void lcd_update(void)
216{
217 int y;
218
219 /* Copy display bitmap to hardware */
220 for (y = 0; y < LCD_FBHEIGHT; y++)
221 {
222 lcd_write_command (LCD_CNTL_PAGE | (y & 0xf));
223 lcd_write_command (LCD_CNTL_HIGHCOL | ((xoffset >> 4) & 0xf));
224 lcd_write_command (LCD_CNTL_LOWCOL | (xoffset & 0xf));
225
226 lcd_write_data (lcd_framebuffer[y], LCD_WIDTH);
227 }
228}
229
230/* Update a fraction of the display. */
231void lcd_update_rect(int, int, int, int) ICODE_ATTR;
232void lcd_update_rect(int x, int y, int width, int height)
233{
234 int ymax;
235
236 /* The Y coordinates have to work on even 8 pixel rows */
237 ymax = (y + height-1) >> 3;
238 y >>= 3;
239
240 if(x + width > LCD_WIDTH)
241 width = LCD_WIDTH - x;
242 if (width <= 0)
243 return; /* nothing left to do, 0 is harmful to lcd_write_data() */
244 if(ymax >= LCD_FBHEIGHT)
245 ymax = LCD_FBHEIGHT-1;
246
247 /* Copy specified rectange bitmap to hardware */
248 for (; y <= ymax; y++)
249 {
250 lcd_write_command (LCD_CNTL_PAGE | (y & 0xf));
251 lcd_write_command (LCD_CNTL_HIGHCOL | (((x+xoffset) >> 4) & 0xf));
252 lcd_write_command (LCD_CNTL_LOWCOL | ((x+xoffset) & 0xf));
253
254 lcd_write_data (&lcd_framebuffer[y][x], width);
255 }
256}