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1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
9 *
10 * Copyright (C) 2006 by Barry Wardell
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
20/* The H10 display possibly identical to that of the X5, so that code was used here
21 but left #if 0'ed out for the moment */
22
23#include "config.h"
24
25#include "cpu.h"
26#include "lcd.h"
27#include "kernel.h"
28#include "thread.h"
29#include <string.h>
30#include <stdlib.h>
31#include "file.h"
32#include "debug.h"
33#include "system.h"
34#include "font.h"
35#include "bidi.h"
36
37static bool display_on=false; /* is the display turned on? */
38
39#define LCD_CMD *(volatile unsigned short *)0xf0008000
40#define LCD_DATA *(volatile unsigned short *)0xf0008002
41
42/* register defines for the Renesas HD66773R */
43#define R_HORIZ_RAM_ADDR_POS 0x16
44#define R_VERT_RAM_ADDR_POS 0x17
45#define R_RAM_ADDR_SET 0x21
46#define R_WRITE_DATA_2_GRAM 0x22
47
48/*****************************************************
49The table below was generated by the following script:
50
51#!/usr/bin/perl
52
53# high byte table
54print "short high8to9[] = {\n";
55$str = " ";
56for my $m (0 .. 255) {
57 # RRRRRGGG => RRRRR0GGG
58 my $v = (($m & 0xF8) << 1) | ($m & 0x07);
59 if(length($str) > 75) {
60 print "$str\n";
61 $str=" ";
62 }
63 $str .= sprintf("0x%03x, ", $v);
64}
65print "$str\n};\n";
66
67*****************************************************/
68
69/* Lookup table for 16->18bit conversion, high byte. The low byte is just
70 shifted. */
71const short high8to9[] ICONST_ATTR = {
72 0x000, 0x001, 0x002, 0x003, 0x004, 0x005, 0x006, 0x007, 0x010, 0x011, 0x012,
73 0x013, 0x014, 0x015, 0x016, 0x017, 0x020, 0x021, 0x022, 0x023, 0x024, 0x025,
74 0x026, 0x027, 0x030, 0x031, 0x032, 0x033, 0x034, 0x035, 0x036, 0x037, 0x040,
75 0x041, 0x042, 0x043, 0x044, 0x045, 0x046, 0x047, 0x050, 0x051, 0x052, 0x053,
76 0x054, 0x055, 0x056, 0x057, 0x060, 0x061, 0x062, 0x063, 0x064, 0x065, 0x066,
77 0x067, 0x070, 0x071, 0x072, 0x073, 0x074, 0x075, 0x076, 0x077, 0x080, 0x081,
78 0x082, 0x083, 0x084, 0x085, 0x086, 0x087, 0x090, 0x091, 0x092, 0x093, 0x094,
79 0x095, 0x096, 0x097, 0x0a0, 0x0a1, 0x0a2, 0x0a3, 0x0a4, 0x0a5, 0x0a6, 0x0a7,
80 0x0b0, 0x0b1, 0x0b2, 0x0b3, 0x0b4, 0x0b5, 0x0b6, 0x0b7, 0x0c0, 0x0c1, 0x0c2,
81 0x0c3, 0x0c4, 0x0c5, 0x0c6, 0x0c7, 0x0d0, 0x0d1, 0x0d2, 0x0d3, 0x0d4, 0x0d5,
82 0x0d6, 0x0d7, 0x0e0, 0x0e1, 0x0e2, 0x0e3, 0x0e4, 0x0e5, 0x0e6, 0x0e7, 0x0f0,
83 0x0f1, 0x0f2, 0x0f3, 0x0f4, 0x0f5, 0x0f6, 0x0f7, 0x100, 0x101, 0x102, 0x103,
84 0x104, 0x105, 0x106, 0x107, 0x110, 0x111, 0x112, 0x113, 0x114, 0x115, 0x116,
85 0x117, 0x120, 0x121, 0x122, 0x123, 0x124, 0x125, 0x126, 0x127, 0x130, 0x131,
86 0x132, 0x133, 0x134, 0x135, 0x136, 0x137, 0x140, 0x141, 0x142, 0x143, 0x144,
87 0x145, 0x146, 0x147, 0x150, 0x151, 0x152, 0x153, 0x154, 0x155, 0x156, 0x157,
88 0x160, 0x161, 0x162, 0x163, 0x164, 0x165, 0x166, 0x167, 0x170, 0x171, 0x172,
89 0x173, 0x174, 0x175, 0x176, 0x177, 0x180, 0x181, 0x182, 0x183, 0x184, 0x185,
90 0x186, 0x187, 0x190, 0x191, 0x192, 0x193, 0x194, 0x195, 0x196, 0x197, 0x1a0,
91 0x1a1, 0x1a2, 0x1a3, 0x1a4, 0x1a5, 0x1a6, 0x1a7, 0x1b0, 0x1b1, 0x1b2, 0x1b3,
92 0x1b4, 0x1b5, 0x1b6, 0x1b7, 0x1c0, 0x1c1, 0x1c2, 0x1c3, 0x1c4, 0x1c5, 0x1c6,
93 0x1c7, 0x1d0, 0x1d1, 0x1d2, 0x1d3, 0x1d4, 0x1d5, 0x1d6, 0x1d7, 0x1e0, 0x1e1,
94 0x1e2, 0x1e3, 0x1e4, 0x1e5, 0x1e6, 0x1e7, 0x1f0, 0x1f1, 0x1f2, 0x1f3, 0x1f4,
95 0x1f5, 0x1f6, 0x1f7,
96};
97
98/* called very frequently - inline! */
99inline void lcd_write_reg(int reg, int val)
100{
101#if 0
102 LCD_CMD = (reg >> 8) << 1;
103 LCD_CMD = (reg & 0xff) << 1;
104 LCD_DATA = (val >> 8) << 1;
105 LCD_DATA = (val & 0xff) << 1;
106#endif
107 (void)reg;
108 (void)val;
109}
110
111/* called very frequently - inline! */
112inline void lcd_begin_write_gram(void)
113{
114#if 0
115 LCD_CMD = (R_WRITE_DATA_2_GRAM >> 8) << 1;
116 LCD_CMD = (R_WRITE_DATA_2_GRAM & 0xff) << 1;
117#endif
118}
119
120/* called very frequently - inline! */
121inline void lcd_write_data(const unsigned short* p_bytes, int count) ICODE_ATTR;
122inline void lcd_write_data(const unsigned short* p_bytes, int count)
123{
124#if 0
125 unsigned int tmp;
126 unsigned int *ptr = (unsigned int *)p_bytes;
127 bool extra;
128
129 /* if there's on odd number of pixels, remmber this and output the
130 trailing pixel after the loop */
131 extra = (count&1)?true:false;
132
133 count >>= 1;
134 while(count--) {
135 tmp = *ptr++;
136 LCD_DATA = high8to9[tmp >> 24];
137 LCD_DATA = tmp>>15;
138 LCD_DATA = high8to9[(tmp >> 8)&255];
139 LCD_DATA = tmp<<1;
140 }
141 if(extra) {
142 /* the final "spare" pixel */
143 unsigned short read = *(unsigned short *)ptr;
144 LCD_DATA = high8to9[read >> 8];
145 LCD_DATA = read<<1;
146 }
147#endif
148 (void)p_bytes;
149 (void)count;
150}
151
152/*** hardware configuration ***/
153
154int lcd_default_contrast(void)
155{
156 return 16;
157}
158
159void lcd_set_contrast(int val)
160{
161#if 0
162 if (val >= 15) // val must'nt be 15 or 31
163 ++val;
164 if (val > 30)
165 return;
166
167 lcd_write_reg(0x0e, 0x201e + (val << 8));
168#endif
169 (void)val;
170}
171
172void lcd_set_invert_display(bool yesno)
173{
174 (void)yesno;
175}
176
177/* turn the display upside down (call lcd_update() afterwards) */
178void lcd_set_flip(bool yesno)
179{
180 (void)yesno;
181}
182
183/* Rolls up the lcd display by the specified amount of lines.
184 * Lines that are rolled out over the top of the screen are
185 * rolled in from the bottom again. This is a hardware
186 * remapping only and all operations on the lcd are affected.
187 * ->
188 * @param int lines - The number of lines that are rolled.
189 * The value must be 0 <= pixels < LCD_HEIGHT. */
190void lcd_roll(int lines)
191{
192 (void)lines;
193}
194
195/* LCD init
196 * These settings are taken from the original X5 firmware
197 */
198void lcd_init_device(void)
199{
200#if 0
201 display_on=true;
202
203 /* LCD Reset */
204 and_l(~0x00000010, &GPIO1_OUT);
205 or_l(0x00000010, &GPIO1_ENABLE);
206 or_l(0x00000010, &GPIO1_FUNCTION);
207 sleep(HZ/100);
208 or_l(0x00000010, &GPIO1_OUT);
209
210 sleep(HZ/100);
211
212 lcd_write_reg(0, 0x0001);
213
214 sleep(HZ/50);
215
216 lcd_write_reg(0x0d, 0x0401);
217 lcd_write_reg(0x0e, 0x321e);
218 lcd_write_reg(0x01, 0x0313);
219 lcd_write_reg(0x02, 0x0700);
220 lcd_write_reg(0x05, 0x9038);
221 lcd_write_reg(0x06, 0x0000);
222 lcd_write_reg(0x0b, 0x4000);
223
224 sleep(HZ/100);
225
226 lcd_write_reg(0x21,0x0000);
227 lcd_write_reg(0x30,0x0003);
228 lcd_write_reg(0x31,0x0400);
229 lcd_write_reg(0x32,0x0407);
230 lcd_write_reg(0x33,0x0305);
231 lcd_write_reg(0x34,0x0003);
232 lcd_write_reg(0x35,0x0704);
233 lcd_write_reg(0x36,0x0407);
234 lcd_write_reg(0x37,0x0503);
235 lcd_write_reg(0x0f,0x0002);
236 lcd_write_reg(0x11,0x0000);
237 lcd_write_reg(0x14,0x9f00);
238 lcd_write_reg(0x15,0x5c00);
239 lcd_write_reg(0x16,0x7f00);
240 lcd_write_reg(0x17,0x9f00);
241 lcd_write_reg(0x3a,0x1409);
242 lcd_write_reg(0x3b,0x0602);
243
244 lcd_write_reg(0x0c,0x0001);
245
246 sleep(HZ/25);
247
248 lcd_write_reg(0x03,0x002c);
249 lcd_write_reg(0x04,0x8000);
250
251 sleep(HZ/25);
252
253 lcd_write_reg(0x0e,0x3318);
254
255 sleep(HZ/25);
256
257 lcd_write_reg(0x0d,0x0411);
258
259 sleep(HZ/100);
260
261 lcd_write_reg(0x07,0x0006);
262 lcd_write_reg(0x07,0x036);
263 lcd_write_reg(0x07,0x037);
264 lcd_write_reg(0x07,0x0037);
265 return;
266#endif
267}
268
269void lcd_enable(bool on)
270{
271#if 0
272 display_on = on;
273#endif
274 (void)on;
275}
276
277/*** update functions ***/
278
279/* Performance function that works with an external buffer
280 note that by and bheight are in 8-pixel units! */
281void lcd_blit(const fb_data* data, int x, int by, int width,
282 int bheight, int stride)
283{
284 /* TODO: Implement lcd_blit() */
285 (void)data;
286 (void)x;
287 (void)by;
288 (void)width;
289 (void)bheight;
290 (void)stride;
291 /*if(display_on)*/
292}
293
294
295/* Update the display.
296 This must be called after all other LCD functions that change the display. */
297void lcd_update(void) ICODE_ATTR;
298void lcd_update(void)
299{
300#if 0
301 if(display_on){
302
303 /* Copy display bitmap to hardware */
304 lcd_write_reg(R_RAM_ADDR_SET, 0x0000);
305 lcd_begin_write_gram();
306 lcd_write_data((unsigned short *)lcd_framebuffer, LCD_WIDTH*LCD_HEIGHT);
307 }
308#endif
309}
310
311/* Update a fraction of the display. */
312void lcd_update_rect(int, int, int, int) ICODE_ATTR;
313void lcd_update_rect(int x, int y, int width, int height)
314{
315#if 0
316 if(display_on) {
317 int ymax = y + height;
318
319 if(x + width > LCD_WIDTH)
320 width = LCD_WIDTH - x;
321 if (width <= 0)
322 return; /* nothing left to do, 0 is harmful to lcd_write_data() */
323 if(ymax >= LCD_HEIGHT)
324 ymax = LCD_HEIGHT-1;
325
326 /* set update window */
327
328 /* horiz ram addr */
329 lcd_write_reg(R_HORIZ_RAM_ADDR_POS, (ymax<<8) | y);
330
331 /* vert ram addr */
332 lcd_write_reg(R_VERT_RAM_ADDR_POS,((x+width-1)<<8) | x);
333 lcd_write_reg(R_RAM_ADDR_SET, (x<<8) | y);
334 lcd_begin_write_gram();
335
336 /* Copy specified rectangle bitmap to hardware */
337 for (; y <= ymax; y++)
338 {
339 lcd_write_data ((unsigned short *)&lcd_framebuffer[y][x], width);
340 }
341
342 /* reset update window */
343 lcd_write_reg(R_HORIZ_RAM_ADDR_POS, 0x7f00);
344 lcd_write_reg(R_VERT_RAM_ADDR_POS, 0x9f00);
345 }
346#endif
347 (void)x;
348 (void)y;
349 (void)width;
350 (void)height;
351}