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Diffstat (limited to 'firmware/target/arm/rk27xx/rk27generic/lcd-rk27generic.c')
-rw-r--r--firmware/target/arm/rk27xx/rk27generic/lcd-rk27generic.c211
1 files changed, 211 insertions, 0 deletions
diff --git a/firmware/target/arm/rk27xx/rk27generic/lcd-rk27generic.c b/firmware/target/arm/rk27xx/rk27generic/lcd-rk27generic.c
new file mode 100644
index 0000000000..b184630ebe
--- /dev/null
+++ b/firmware/target/arm/rk27xx/rk27generic/lcd-rk27generic.c
@@ -0,0 +1,211 @@
1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
9 *
10 * Copyright (C) 2011 Marcin Bukat
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
22#include "config.h"
23#include "kernel.h"
24#include "lcd.h"
25#include "system.h"
26#include "cpu.h"
27#include "spfd5420a.h"
28#include "lcdif-rk27xx.h"
29
30/* TODO: convert to udelay() */
31static inline void delay_nop(int cycles)
32{
33 asm volatile ("1: subs %[n], %[n], #1 \n\t"
34 " bne 1b"
35 :
36 : [n] "r" (cycles));
37}
38
39
40/* converts RGB565 pixel into internal lcd bus format */
41static unsigned int lcd_pixel_transform(unsigned short rgb565)
42{
43 unsigned int r, g, b;
44 b = rgb565 & 0x1f;
45 g = (rgb565 >> 5) & 0x3f;
46 r = (rgb565 >> 11) & 0x1f;
47
48 return r<<19 | g<<10 | b<<3;
49}
50
51/* not tested */
52static void lcd_sleep(bool sleep)
53{
54 if (sleep)
55 {
56 /* enter sleep mode */
57 lcd_write_reg(DISPLAY_CTRL1, 0x0170);
58 delay_nop(50);
59 lcd_write_reg(DISPLAY_CTRL1, 0x0000);
60 delay_nop(50);
61 lcd_write_reg(PWR_CTRL1, 0x14B4);
62 }
63 else
64 {
65 /* return to normal operation */
66 lcd_write_reg(PWR_CTRL1, 0x14B0);
67 delay_nop(50);
68 lcd_write_reg(DISPLAY_CTRL1, 0x0173);
69 }
70
71 lcd_cmd(GRAM_WRITE);
72}
73
74void lcd_display_init()
75{
76 unsigned int x, y;
77
78 lcd_write_reg(RESET, 0x0001);
79 delay_nop(10000);
80 lcd_write_reg(RESET, 0x0000);
81 delay_nop(10000);
82 lcd_write_reg(IF_ENDIAN, 0x0000); /* order of receiving data */
83 lcd_write_reg(DRIVER_OUT_CTRL, 0x0000);
84 lcd_write_reg(ENTRY_MODE, 0x1038);
85 lcd_write_reg(WAVEFORM_CTRL, 0x0100);
86 lcd_write_reg(SHAPENING_CTRL, 0x0000);
87 lcd_write_reg(DISPLAY_CTRL2, 0x0808);
88 lcd_write_reg(LOW_PWR_CTRL1, 0x0001);
89 lcd_write_reg(LOW_PWR_CTRL2, 0x0010);
90 lcd_write_reg(EXT_DISP_CTRL1, 0x0000);
91 lcd_write_reg(EXT_DISP_CTRL2, 0x0000);
92 lcd_write_reg(BASE_IMG_SIZE, 0x3100);
93 lcd_write_reg(BASE_IMG_CTRL, 0x0001);
94 lcd_write_reg(VSCROLL_CTRL, 0x0000);
95 lcd_write_reg(PART1_POS, 0x0000);
96 lcd_write_reg(PART1_START, 0x0000);
97 lcd_write_reg(PART1_END, 0x018F);
98 lcd_write_reg(PART2_POS, 0x0000);
99 lcd_write_reg(PART2_START, 0x0000);
100 lcd_write_reg(PART2_END, 0x0000);
101
102 lcd_write_reg(PANEL_IF_CTRL1, 0x0011);
103 delay_nop(10000);
104 lcd_write_reg(PANEL_IF_CTRL2, 0x0202);
105 lcd_write_reg(PANEL_IF_CTRL3, 0x0300);
106 delay_nop(10000);
107 lcd_write_reg(PANEL_IF_CTRL4, 0x021E);
108 lcd_write_reg(PANEL_IF_CTRL5, 0x0202);
109 lcd_write_reg(PANEL_IF_CTRL6, 0x0100);
110 lcd_write_reg(FRAME_MKR_CTRL, 0x0000);
111 lcd_write_reg(MDDI_CTRL, 0x0000);
112
113 lcd_write_reg(GAMMA_CTRL1, 0x0101);
114 lcd_write_reg(GAMMA_CTRL2, 0x0000);
115 lcd_write_reg(GAMMA_CTRL3, 0x0016);
116 lcd_write_reg(GAMMA_CTRL4, 0x2913);
117 lcd_write_reg(GAMMA_CTRL5, 0x260B);
118 lcd_write_reg(GAMMA_CTRL6, 0x0101);
119 lcd_write_reg(GAMMA_CTRL7, 0x1204);
120 lcd_write_reg(GAMMA_CTRL8, 0x0415);
121 lcd_write_reg(GAMMA_CTRL9, 0x0205);
122 lcd_write_reg(GAMMA_CTRL10, 0x0303);
123 lcd_write_reg(GAMMA_CTRL11, 0x0E05);
124 lcd_write_reg(GAMMA_CTRL12, 0x0D01);
125 lcd_write_reg(GAMMA_CTRL13, 0x010D);
126 lcd_write_reg(GAMMA_CTRL14, 0x050E);
127 lcd_write_reg(GAMMA_CTRL15, 0x0303);
128 lcd_write_reg(GAMMA_CTRL16, 0x0502);
129
130 /* power on */
131 lcd_write_reg(DISPLAY_CTRL1, 0x0001);
132 lcd_write_reg(PWR_CTRL6, 0x0001);
133 lcd_write_reg(PWR_CTRL7, 0x0060);
134 delay_nop(50000);
135 lcd_write_reg(PWR_CTRL1, 0x16B0);
136 delay_nop(10000);
137 lcd_write_reg(PWR_CTRL2, 0x0147);
138 delay_nop(10000);
139 lcd_write_reg(PWR_CTRL3, 0x0117);
140 delay_nop(10000);
141 lcd_write_reg(PWR_CTRL4, 0x2F00);
142 delay_nop(50000);
143 lcd_write_reg(VCOM_HV2, 0x0000); /* src 0x0090 */
144 delay_nop(10000);
145 lcd_write_reg(VCOM_HV1, 0x0008); /* src 0x000A */
146 lcd_write_reg(PWR_CTRL3, 0x01BE);
147 delay_nop(10000);
148
149 /* addresses setup */
150 lcd_write_reg(WINDOW_H_START, 0x0000);
151 lcd_write_reg(WINDOW_H_END, 0x00EF); /* 239 */
152 lcd_write_reg(WINDOW_V_START, 0x0000);
153 lcd_write_reg(WINDOW_V_END, 0x018F); /* 399 */
154 lcd_write_reg(GRAM_H_ADDR, 0x0000);
155 lcd_write_reg(GRAM_V_ADDR, 0x0000);
156
157 /* display on */
158 lcd_write_reg(DISPLAY_CTRL1, 0x0021);
159 delay_nop(40000);
160 lcd_write_reg(DISPLAY_CTRL1, 0x0061);
161 delay_nop(100000);
162 lcd_write_reg(DISPLAY_CTRL1, 0x0173);
163 delay_nop(300000);
164
165
166 /* clear screen */
167 lcd_cmd(GRAM_WRITE);
168
169 for (x=0; x<LCD_WIDTH; x++)
170 for(y=0; y<LCD_HEIGHT; y++)
171 lcd_data(0x000000);
172
173 lcd_sleep(false);
174}
175
176void lcd_update_rect(int x, int y, int width, int height)
177{
178 int px = x, py = y;
179 int pxmax = x + width, pymax = y + height;
180
181 /* addresses setup */
182 lcd_write_reg(WINDOW_H_START, y);
183 lcd_write_reg(WINDOW_H_END, pymax-1);
184 lcd_write_reg(WINDOW_V_START, x);
185 lcd_write_reg(WINDOW_V_END, pxmax-1);
186 lcd_write_reg(GRAM_H_ADDR, y);
187 lcd_write_reg(GRAM_V_ADDR, x);
188
189 lcd_cmd(GRAM_WRITE);
190
191 for (py=y; py<pymax; py++)
192 {
193 for (px=x; px<pxmax; px++)
194 LCD_DATA = lcd_pixel_transform(lcd_framebuffer[py][px]);
195 }
196}
197
198/* Blit a YUV bitmap directly to the LCD */
199void lcd_blit_yuv(unsigned char * const src[3],
200 int src_x, int src_y, int stride,
201 int x, int y, int width, int height)
202{
203 (void)src;
204 (void)src_x;
205 (void)src_y;
206 (void)stride;
207 (void)x;
208 (void)y;
209 (void)width;
210 (void)height;
211}
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