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Diffstat (limited to 'firmware/target/arm/imx233/samsung-ypz5/lcd-ypz5.c')
-rw-r--r--firmware/target/arm/imx233/samsung-ypz5/lcd-ypz5.c295
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diff --git a/firmware/target/arm/imx233/samsung-ypz5/lcd-ypz5.c b/firmware/target/arm/imx233/samsung-ypz5/lcd-ypz5.c
deleted file mode 100644
index 99fe0b2aef..0000000000
--- a/firmware/target/arm/imx233/samsung-ypz5/lcd-ypz5.c
+++ /dev/null
@@ -1,295 +0,0 @@
1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 *
9 * Copyright (c) 2013 by Lorenzo Miori
10 *
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License
13 * as published by the Free Software Foundation; either version 2
14 * of the License, or (at your option) any later version.
15 *
16 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
17 * KIND, either express or implied.
18 *
19 ****************************************************************************/
20#include <sys/types.h> /* off_t */
21#include <string.h>
22#include "cpu.h"
23#include "system.h"
24#include "backlight-target.h"
25#include "lcd.h"
26#include "lcdif-imx233.h"
27#include "clkctrl-imx233.h"
28#include "pinctrl-imx233.h"
29#include "dcp-imx233.h"
30#include "logf.h"
31#ifndef BOOTLOADER
32#include "button.h"
33#include "font.h"
34#include "action.h"
35#endif
36#include "dma-imx233.h"
37#include "kernel.h"
38
39#include "regs/lcdif.h"
40
41/**
42 * NOTE
43 * We don't know exact LCD models nor we have datasheets for them
44 * Register function are partly guessed from the values, others are guessed from other LCD
45 * drivers and others have been confirmed studying their values
46 */
47
48static enum lcd_type_t
49{
50 LCD_TYPE_ZERO = 0,
51 LCD_TYPE_ONE = 1
52} lcd_type = LCD_TYPE_ZERO;
53
54static void lcd_write_reg(uint16_t reg, uint16_t data)
55{
56 imx233_lcdif_pio_send(false, 1, &reg);
57 if(reg != 0x22)
58 imx233_lcdif_pio_send(true, 1, &data);
59}
60
61/*
62 * The two LCD types require different initialization sequences
63 */
64void lcd_init_seq(void)
65{
66 switch (lcd_type)
67 {
68 case LCD_TYPE_ZERO:
69 {
70 lcd_write_reg(0x11, 0x1f1e);
71 lcd_write_reg(0x38, 0xf0f);
72 lcd_write_reg(0x12, 0x1101);
73 lcd_write_reg(0x13, 0x808);
74 lcd_write_reg(0x14, 0x3119);
75 lcd_write_reg(0x10, 0x1a10);
76 udelay(0xc350);
77 lcd_write_reg(0x13, 0x83b);
78 udelay(0x30d40);
79 lcd_write_reg(1, 0x90c); /* Display mode */
80 lcd_write_reg(2, 0x200);
81 lcd_write_reg(3, 0x1030);
82 lcd_write_reg(7, 5);
83 lcd_write_reg(8, 0x503);
84 lcd_write_reg(11, 0);
85 lcd_write_reg(12, 0);
86 /* Gamma control */
87 lcd_write_reg(0x30, 0x606);
88 lcd_write_reg(0x31, 0x606);
89 lcd_write_reg(0x32, 0x305);
90 lcd_write_reg(0x33, 2);
91 lcd_write_reg(0x34, 0x503);
92 lcd_write_reg(0x35, 0x606);
93 lcd_write_reg(0x36, 0x606);
94 lcd_write_reg(0x37, 0x200);
95
96 lcd_write_reg(0x11, 0x1f1e);
97 lcd_write_reg(0x38, 0xf0f);
98 /* Set initial LCD limits and RAM settings */
99 lcd_write_reg(0x40, 0); //BPP ?
100 lcd_write_reg(0x42, 0x9f00);
101 lcd_write_reg(0x43, 0);
102 lcd_write_reg(0x44, 0x7f00); /* Horizontal initial refresh zone [0 - 127] */
103 lcd_write_reg(0x45, 0x9f00); /* Vertical initial refresh zone [0 - 159] */
104
105 lcd_write_reg(14, 0x13);
106 lcd_write_reg(0xa9, 0x14);
107 lcd_write_reg(0xa7, 0x30);
108 lcd_write_reg(0xa8, 0x124);
109 lcd_write_reg(0x6f, 0x1d00);
110 lcd_write_reg(0x70, 3);
111 lcd_write_reg(7, 1);
112 lcd_write_reg(0x10, 0x1a10);
113 udelay(0x9c40);
114 lcd_write_reg(7, 0x21);
115 lcd_write_reg(7, 0x23);
116 udelay(0x9c40);
117 lcd_write_reg(7, 0x37); /* Seems to be "power on" */
118 break;
119 }
120 case LCD_TYPE_ONE:
121 {
122 lcd_write_reg(0, 1);
123 udelay(0x2710);
124 lcd_write_reg(0x11, 0x171b);
125 lcd_write_reg(0x12, 0);
126 lcd_write_reg(0x13, 0x80d);
127 lcd_write_reg(0x14, 0x18);
128 lcd_write_reg(0x10, 0x1a10);
129 udelay(0xc350);
130 lcd_write_reg(0x13, 0x81d);
131 udelay(0xc350);
132 lcd_write_reg(1, 0x90c); /* Display mode */
133 lcd_write_reg(2, 0x200);
134 lcd_write_reg(3, 0x1030);
135 lcd_write_reg(7, 5);
136 lcd_write_reg(8, 0x30a);
137 lcd_write_reg(11, 4);
138 lcd_write_reg(12, 0);
139 /* Gamma control */
140 lcd_write_reg(0x30, 0x300);
141 lcd_write_reg(0x31, 0);
142 lcd_write_reg(0x32, 0);
143 lcd_write_reg(0x33, 0x404);
144 lcd_write_reg(0x34, 0x707);
145 lcd_write_reg(0x35, 0x700);
146 lcd_write_reg(0x36, 0x703);
147 lcd_write_reg(0x37, 4);
148
149 lcd_write_reg(0x38, 0);
150 /* Set initial LCD limits and RAM settings */
151 lcd_write_reg(0x40, 0);
152 lcd_write_reg(0x42, 0x9f00); /* LCD Display Start Address Register 0 */
153 lcd_write_reg(0x43, 0); /* LCD Display Start Address Register 1 */
154 lcd_write_reg(0x44, 0x7f00); /* Horizontal initial refresh zone [0 - 127] */
155 lcd_write_reg(0x45, 0x9f00); /* Vertical initial refresh zone [0 - 159] */
156
157 lcd_write_reg(7, 1);
158 udelay(0x2710);
159 lcd_write_reg(7, 0x21);
160 lcd_write_reg(7, 0x23);
161 udelay(0x2710);
162 lcd_write_reg(7, 0x1037);
163 udelay(0x2710);
164 lcd_write_reg(7, 0x35);
165 lcd_write_reg(7, 0x36);
166 lcd_write_reg(7, 0x37);
167 udelay(10000);
168 break;
169 }
170 default:
171 break;
172 }
173}
174
175static void send_update_rect(uint8_t x, uint8_t y, uint8_t w, uint8_t h)
176{
177 /* Set horizontal refresh zone */
178 lcd_write_reg(0x44, (x | (y + w - 1) << 0x8));
179 /* Set vertical refresh zone */
180 lcd_write_reg(0x45, (y | (y + h - 1) << 0x8));
181 lcd_write_reg(0x21, x | y << 8);
182 /* Set register index to 0x22 to write screen data. 0 is mock value */
183 lcd_write_reg(0x22, 0);
184}
185
186static void setup_lcd_pins(void)
187{
188 imx233_lcdif_setup_system_pins(16);
189 /* lcd_rd */
190 imx233_pinctrl_acquire(0, 9, "lcd rd");
191 imx233_pinctrl_set_function(0, 9, PINCTRL_FUNCTION_GPIO);
192 imx233_pinctrl_set_gpio(0, 9, false);
193 /*
194 * This pin is important to know the LCD type
195 * There are two types that require two different initialization sequences
196 */
197 /* lcd_tp */
198 imx233_pinctrl_acquire(3, 12, "lcd type");
199 imx233_pinctrl_set_function(3, 12, PINCTRL_FUNCTION_GPIO);
200 imx233_pinctrl_enable_gpio(3, 12, false);
201 /* Sense LCD Type */
202 lcd_type = imx233_pinctrl_get_gpio(3, 12) ? LCD_TYPE_ONE : LCD_TYPE_ZERO;
203}
204
205static void setup_parameters(void)
206{
207 imx233_lcdif_init();
208 imx233_lcdif_enable(true);
209 imx233_lcdif_set_word_length(16);
210 imx233_lcdif_set_data_swizzle(false);
211 imx233_lcdif_set_timings(2, 1, 1, 1);
212 BF_WR(LCDIF_CTRL, MODE86_V(8080_MODE));
213
214 imx233_lcdif_reset_lcd(true);
215 udelay(50);
216 imx233_lcdif_reset_lcd(false);
217 udelay(10);
218 imx233_lcdif_reset_lcd(true);
219}
220
221void lcd_init_device(void)
222{
223 /* Setup interface pins */
224 setup_lcd_pins();
225 /* Set LCD parameters */
226 setup_parameters();
227 /* Send initialization sequence to LCD */
228 lcd_init_seq();
229}
230
231struct lcdif_cmd_t
232{
233 struct apb_dma_command_t dma;
234 uint32_t ctrl0;
235 uint32_t pad[4];
236} __attribute__((packed)) CACHEALIGN_ATTR;
237
238struct lcdif_cmd_t lcdif_dma;
239void lcd_update(void)
240{
241 unsigned size = LCD_WIDTH * LCD_HEIGHT * sizeof(fb_data);
242
243 send_update_rect(0,0,LCD_WIDTH,LCD_HEIGHT);
244 /* We can safely do the transfer in a single shot, since 160 * 128 * 2 < 65k,
245 * the maximum transfer size!
246 */
247 lcdif_dma.dma.cmd |= BF_OR(APB_CHx_CMD, CMDWORDS(1), XFER_COUNT(size), COMMAND(2));
248 lcdif_dma.ctrl0 = HW_LCDIF_CTRL & ~BM_LCDIF_CTRL_COUNT;
249 lcdif_dma.ctrl0 |= BF_OR(LCDIF_CTRL, COUNT(size/2), DATA_SELECT(1));
250 lcdif_dma.dma.buffer = FBADDR(0,0);
251 lcdif_dma.dma.cmd |= BM_APB_CHx_CMD_SEMAPHORE;
252
253 imx233_dma_start_command(APB_LCDIF, &lcdif_dma.dma);
254 imx233_dma_wait_completion(APB_LCDIF, HZ);
255}
256
257void lcd_update_rect(int x, int y, int w, int h)
258{
259 (void)x;
260 (void)y;
261 (void)w;
262 (void)h;
263 lcd_update();
264}
265
266#ifndef BOOTLOADER
267bool lcd_debug_screen(void)
268{
269 lcd_setfont(FONT_SYSFIXED);
270
271 while(1)
272 {
273 int button = get_action(CONTEXT_STD, HZ / 10);
274 switch(button)
275 {
276 case ACTION_STD_NEXT:
277 case ACTION_STD_PREV:
278 case ACTION_STD_OK:
279 case ACTION_STD_MENU:
280 lcd_setfont(FONT_UI);
281 return true;
282 case ACTION_STD_CANCEL:
283 lcd_setfont(FONT_UI);
284 return false;
285 }
286
287 lcd_clear_display();
288 lcd_putsf(0, 0, "LCD type: %d", lcd_type);
289 lcd_update();
290 yield();
291 }
292
293 return true;
294}
295#endif
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