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author | Amaury Pouly <amaury.pouly@gmail.com> | 2014-01-05 15:20:41 +0100 |
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committer | Amaury Pouly <amaury.pouly@gmail.com> | 2014-01-21 18:52:28 +0100 |
commit | 69d0dae55bf3da2f356dbd03dba299c708133902 (patch) | |
tree | ff60084c40831c6f8f7b8806d54fe570c2d8955b /firmware/target/arm/imx233/creative-zen/lcd-zenxfistyle.c | |
parent | b3abcb807b7f6202158a47668af7f2505b6dd25e (diff) | |
download | rockbox-69d0dae55bf3da2f356dbd03dba299c708133902.tar.gz rockbox-69d0dae55bf3da2f356dbd03dba299c708133902.zip |
Initial commit for the ZEN X-Fi Style
Change-Id: Ib25a357a7bafd2ef25f273cadff70fafbd8d4661
Diffstat (limited to 'firmware/target/arm/imx233/creative-zen/lcd-zenxfistyle.c')
-rw-r--r-- | firmware/target/arm/imx233/creative-zen/lcd-zenxfistyle.c | 311 |
1 files changed, 311 insertions, 0 deletions
diff --git a/firmware/target/arm/imx233/creative-zen/lcd-zenxfistyle.c b/firmware/target/arm/imx233/creative-zen/lcd-zenxfistyle.c new file mode 100644 index 0000000000..5a4542ca67 --- /dev/null +++ b/firmware/target/arm/imx233/creative-zen/lcd-zenxfistyle.c | |||
@@ -0,0 +1,311 @@ | |||
1 | /*************************************************************************** | ||
2 | * __________ __ ___. | ||
3 | * Open \______ \ ____ ____ | | _\_ |__ _______ ___ | ||
4 | * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / | ||
5 | * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < | ||
6 | * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ | ||
7 | * \/ \/ \/ \/ \/ | ||
8 | * $Id$ | ||
9 | * | ||
10 | * Copyright (c) 2013 by Amaury Pouly | ||
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 <sys/types.h> /* off_t */ | ||
22 | #include <string.h> | ||
23 | #include "cpu.h" | ||
24 | #include "system.h" | ||
25 | #include "backlight-target.h" | ||
26 | #include "lcd.h" | ||
27 | #include "lcdif-imx233.h" | ||
28 | #include "clkctrl-imx233.h" | ||
29 | #include "pinctrl-imx233.h" | ||
30 | #include "logf.h" | ||
31 | |||
32 | #ifdef HAVE_LCD_ENABLE | ||
33 | static bool lcd_on; | ||
34 | #endif | ||
35 | static int lcd_model; | ||
36 | |||
37 | static inline uint32_t encode_16_to_18(uint32_t a) | ||
38 | { | ||
39 | return ((a & 0xff) << 1) | (((a >> 8) & 0xff) << 10); | ||
40 | } | ||
41 | |||
42 | static void lcd_write_reg(uint32_t reg, uint32_t data) | ||
43 | { | ||
44 | uint32_t old_reg = reg; | ||
45 | /* get back to 18-bit word length */ | ||
46 | imx233_lcdif_set_word_length(18); | ||
47 | reg = encode_16_to_18(reg); | ||
48 | data = encode_16_to_18(data); | ||
49 | |||
50 | imx233_lcdif_pio_send(false, 1, ®); | ||
51 | if(old_reg != 0x22) | ||
52 | imx233_lcdif_pio_send(true, 1, &data); | ||
53 | } | ||
54 | |||
55 | static void lcd_init_seq(void) | ||
56 | { | ||
57 | if(lcd_model == 0) | ||
58 | { | ||
59 | lcd_write_reg(0xe3, 0x3008); | ||
60 | lcd_write_reg(0xe7, 0x12); | ||
61 | lcd_write_reg(0xef, 0x1231); | ||
62 | lcd_write_reg(0x01, 0x100); | ||
63 | lcd_write_reg(0x02, 0x700); | ||
64 | lcd_write_reg(0x03, 0x1028); | ||
65 | lcd_write_reg(0x04, 0); | ||
66 | lcd_write_reg(0x08, 0x207); | ||
67 | lcd_write_reg(0x09, 0); | ||
68 | lcd_write_reg(0x0a, 0); | ||
69 | lcd_write_reg(0x0c, 0); | ||
70 | lcd_write_reg(0x0d, 0); | ||
71 | lcd_write_reg(0x0f, 0); | ||
72 | lcd_write_reg(0x10, 0); | ||
73 | lcd_write_reg(0x11, 7); | ||
74 | lcd_write_reg(0x12, 0); | ||
75 | lcd_write_reg(0x13, 0); | ||
76 | mdelay(200); | ||
77 | lcd_write_reg(0x10, 0x1490); | ||
78 | lcd_write_reg(0x11, 0x227); | ||
79 | mdelay(50); | ||
80 | lcd_write_reg(0x12, 0x9c); | ||
81 | mdelay(50); | ||
82 | lcd_write_reg(0x13, 0xc00); | ||
83 | lcd_write_reg(0x29, 5); | ||
84 | lcd_write_reg(0x2b, 0xc); | ||
85 | lcd_write_reg(0x20, 0xef); | ||
86 | lcd_write_reg(0x21, 0); | ||
87 | lcd_write_reg(0x30, 6); | ||
88 | lcd_write_reg(0x31, 0x703); | ||
89 | lcd_write_reg(0x32, 0x206); | ||
90 | lcd_write_reg(0x35, 4); | ||
91 | lcd_write_reg(0x36, 0x1a05); | ||
92 | lcd_write_reg(0x37, 0x600); | ||
93 | lcd_write_reg(0x38, 0x307); | ||
94 | lcd_write_reg(0x39, 0x707); | ||
95 | lcd_write_reg(0x3c, 0x400); | ||
96 | lcd_write_reg(0x3d, 0x50f); | ||
97 | lcd_write_reg(0x50, 0); | ||
98 | lcd_write_reg(0x51, 0xef); | ||
99 | lcd_write_reg(0x52, 0); | ||
100 | lcd_write_reg(0x53, 0x13f); | ||
101 | lcd_write_reg(0x60, 0xa700); | ||
102 | lcd_write_reg(0x61, 1); | ||
103 | lcd_write_reg(0x6a, 0); | ||
104 | lcd_write_reg(0x80, 0); | ||
105 | lcd_write_reg(0x81, 0); | ||
106 | lcd_write_reg(0x82, 0); | ||
107 | lcd_write_reg(0x83, 0); | ||
108 | lcd_write_reg(0x84, 0); | ||
109 | lcd_write_reg(0x85, 0); | ||
110 | lcd_write_reg(0x90, 0x10); | ||
111 | lcd_write_reg(0x92, 0x600); | ||
112 | lcd_write_reg(0x07, 0x133); | ||
113 | } | ||
114 | else | ||
115 | { | ||
116 | lcd_write_reg(0x01, 0x100); | ||
117 | lcd_write_reg(0x02, 0x700); | ||
118 | lcd_write_reg(0x03, 0x1028); | ||
119 | lcd_write_reg(0x04, 0); | ||
120 | lcd_write_reg(0x08, 0x207); | ||
121 | lcd_write_reg(0x09, 0); | ||
122 | lcd_write_reg(0x0a, 0); | ||
123 | lcd_write_reg(0x0c, 0); | ||
124 | lcd_write_reg(0x0d, 0); | ||
125 | lcd_write_reg(0x0f, 0); | ||
126 | lcd_write_reg(0x10, 0); | ||
127 | lcd_write_reg(0x11, 7); | ||
128 | lcd_write_reg(0x12, 0); | ||
129 | lcd_write_reg(0x13, 0); | ||
130 | mdelay(200); | ||
131 | lcd_write_reg(0x10, 0x1290); | ||
132 | lcd_write_reg(0x11, 0x227); | ||
133 | mdelay(50); | ||
134 | lcd_write_reg(0x12, 0x9c); | ||
135 | mdelay(50); | ||
136 | lcd_write_reg(0x13, 0x1f00); | ||
137 | lcd_write_reg(0x29, 0x30); | ||
138 | lcd_write_reg(0x2b, 0xd); | ||
139 | lcd_write_reg(0x20, 0xef); | ||
140 | lcd_write_reg(0x21, 0); | ||
141 | lcd_write_reg(0x30, 0x404); | ||
142 | lcd_write_reg(0x31, 0x404); | ||
143 | lcd_write_reg(0x32, 0x404); | ||
144 | lcd_write_reg(0x37, 0x303); | ||
145 | lcd_write_reg(0x38, 0x303); | ||
146 | lcd_write_reg(0x39, 0x303); | ||
147 | lcd_write_reg(0x35, 0x103); | ||
148 | lcd_write_reg(0x3c, 0x301); | ||
149 | lcd_write_reg(0x36, 0x1e00); | ||
150 | lcd_write_reg(0x3d, 0xf); | ||
151 | lcd_write_reg(0x50, 0); | ||
152 | lcd_write_reg(0x51, 0xef); | ||
153 | lcd_write_reg(0x52, 0); | ||
154 | lcd_write_reg(0x53, 0x13f); | ||
155 | lcd_write_reg(0x60, 0xa700); | ||
156 | lcd_write_reg(0x61, 0); | ||
157 | lcd_write_reg(0x6a, 0); | ||
158 | lcd_write_reg(0x80, 0); | ||
159 | lcd_write_reg(0x81, 0); | ||
160 | lcd_write_reg(0x82, 0); | ||
161 | lcd_write_reg(0x83, 0); | ||
162 | lcd_write_reg(0x84, 0); | ||
163 | lcd_write_reg(0x85, 0); | ||
164 | lcd_write_reg(0x2b, 0xd); | ||
165 | mdelay(50); | ||
166 | lcd_write_reg(0x90, 0x17); | ||
167 | lcd_write_reg(0x92, 0); | ||
168 | lcd_write_reg(0x93, 3); | ||
169 | lcd_write_reg(0x95, 0x110); | ||
170 | lcd_write_reg(0x97, 0); | ||
171 | lcd_write_reg(0x98, 0); | ||
172 | lcd_write_reg(0x07, 0x133); | ||
173 | } | ||
174 | } | ||
175 | |||
176 | void lcd_init_device(void) | ||
177 | { | ||
178 | /* clock at 24MHZ */ | ||
179 | imx233_clkctrl_enable(CLK_PIX, false); | ||
180 | imx233_clkctrl_set_div(CLK_PIX, 1); | ||
181 | imx233_clkctrl_set_bypass(CLK_PIX, true); /* use XTAL */ | ||
182 | imx233_clkctrl_enable(CLK_PIX, true); | ||
183 | imx233_lcdif_init(); | ||
184 | imx233_lcdif_set_lcd_databus_width(18); | ||
185 | imx233_lcdif_enable_underflow_recover(true); | ||
186 | imx233_lcdif_setup_system_pins(18); | ||
187 | imx233_lcdif_set_timings(2, 2, 2, 2); | ||
188 | |||
189 | imx233_pinctrl_acquire(2, 8, "lcd_model"); | ||
190 | imx233_pinctrl_set_function(2, 8, PINCTRL_FUNCTION_GPIO); | ||
191 | imx233_pinctrl_enable_gpio(2, 8, false); | ||
192 | lcd_model = imx233_pinctrl_get_gpio(2, 8); | ||
193 | |||
194 | // reset device | ||
195 | imx233_lcdif_reset_lcd(true); | ||
196 | mdelay(50); | ||
197 | imx233_lcdif_reset_lcd(false); | ||
198 | mdelay(10); | ||
199 | imx233_lcdif_reset_lcd(true); | ||
200 | |||
201 | lcd_init_seq(); | ||
202 | #ifdef HAVE_LCD_ENABLE | ||
203 | lcd_on = true; | ||
204 | #endif | ||
205 | } | ||
206 | |||
207 | #ifdef HAVE_LCD_ENABLE | ||
208 | bool lcd_active(void) | ||
209 | { | ||
210 | return lcd_on; | ||
211 | } | ||
212 | |||
213 | static void lcd_enable_seq(bool enable) | ||
214 | { | ||
215 | if(!enable) | ||
216 | { | ||
217 | } | ||
218 | else | ||
219 | { | ||
220 | } | ||
221 | } | ||
222 | |||
223 | void lcd_enable(bool enable) | ||
224 | { | ||
225 | if(lcd_on == enable) | ||
226 | return; | ||
227 | |||
228 | lcd_on = enable; | ||
229 | |||
230 | lcd_enable_seq(enable); | ||
231 | if(enable) | ||
232 | send_event(LCD_EVENT_ACTIVATION, NULL); | ||
233 | } | ||
234 | #endif | ||
235 | |||
236 | void lcd_update(void) | ||
237 | { | ||
238 | lcd_update_rect(0, 0, LCD_WIDTH, LCD_HEIGHT); | ||
239 | } | ||
240 | |||
241 | /* NOTE the LCD is rotated: it's a 240x320 panel with (0,0) being the bottom-left | ||
242 | * corner when the player is hold in landscape mode. This means x and y axis and | ||
243 | * exchanged and the y axis is reversed. */ | ||
244 | |||
245 | void lcd_update_rect(int x, int y, int w, int h) | ||
246 | { | ||
247 | #ifdef HAVE_LCD_ENABLE | ||
248 | if(!lcd_on) | ||
249 | return; | ||
250 | #endif | ||
251 | /* make sure the rectangle is included in the screen */ | ||
252 | x = MIN(x, LCD_WIDTH); | ||
253 | y = MIN(y, LCD_HEIGHT); | ||
254 | w = MIN(w, LCD_WIDTH - x); | ||
255 | h = MIN(h, LCD_HEIGHT - y); | ||
256 | |||
257 | imx233_lcdif_wait_ready(); | ||
258 | lcd_write_reg(0x50, LCD_HEIGHT - y - h); | ||
259 | lcd_write_reg(0x51, LCD_HEIGHT - y - 1); | ||
260 | lcd_write_reg(0x52, x); | ||
261 | lcd_write_reg(0x53, x + w - 1); | ||
262 | lcd_write_reg(0x20, LCD_HEIGHT - y - 1); | ||
263 | lcd_write_reg(0x21, x); | ||
264 | lcd_write_reg(0x22, 0); | ||
265 | imx233_lcdif_wait_ready(); | ||
266 | imx233_lcdif_set_word_length(16); | ||
267 | imx233_lcdif_set_byte_packing_format(0xf); /* two pixels per 32-bit word */ | ||
268 | |||
269 | /* there are two cases here: | ||
270 | * - either width = LCD_WIDTH and we can directly memcopy a part of lcd_framebuffer to FRAME | ||
271 | * and send it | ||
272 | * - either width != LCD_WIDTH and we have to build a contiguous copy of the rectangular area | ||
273 | * into FRAME before sending it (which is slower and doesn't use the hardware) | ||
274 | * In all cases, FRAME just acts as a temporary buffer. | ||
275 | * NOTE It's more interesting to do a copy to FRAME in all cases since in system mode | ||
276 | * the clock runs at 24MHz which provides barely 10MB/s bandwidth compared to >100MB/s | ||
277 | * for memcopy operations | ||
278 | */ | ||
279 | if(w == LCD_WIDTH) | ||
280 | { | ||
281 | memcpy((void *)FRAME, FBADDR(x,y), w * h * sizeof(fb_data)); | ||
282 | } | ||
283 | else | ||
284 | { | ||
285 | for(int i = 0; i < h; i++) | ||
286 | memcpy((fb_data *)FRAME + i * w, FBADDR(x,y + i), w * sizeof(fb_data)); | ||
287 | } | ||
288 | /* WARNING The LCDIF has a limitation on the vertical count ! In 16-bit packed mode | ||
289 | * (which we used, ie 16-bit per pixel, 2 pixels per 32-bit words), the v_count | ||
290 | * field must be a multiple of 2. Furthermore, it seems the lcd controller doesn't | ||
291 | * really like when both w and h are even, probably because the writes to the GRAM | ||
292 | * are done on several words and the controller requires dummy writes. | ||
293 | * The workaround is to always make sure that we send a number of pixels which is | ||
294 | * a multiple of 4 so that both the lcdif and the controller are happy. If any | ||
295 | * of w or h is odd, we will send a copy of the first pixels as dummy writes. We will | ||
296 | * send at most 3 bytes. We then send (w * h + 3) / 4 x 4 bytes. | ||
297 | */ | ||
298 | if(w % 2 == 1 || h % 2 == 1) | ||
299 | { | ||
300 | /* copy three pixel after the last one */ | ||
301 | for(int i = 0; i < 3; i++) | ||
302 | *((fb_data *)FRAME + w * h + i) = *((fb_data *)FRAME + i); | ||
303 | /* WARNING we need to update w and h to reflect the pixel count BUT it | ||
304 | * has no relation to w * h (it can even be 2 * prime). Hopefully, w <= 240 and | ||
305 | * h <= 320 so w * h <= 76800 and (w * h + 3) / 4 <= 38400 which fits into | ||
306 | * a 16-bit integer (horizontal count). */ | ||
307 | h = (w * h + 3) / 4; | ||
308 | w = 4; | ||
309 | } | ||
310 | imx233_lcdif_dma_send((void *)FRAME_PHYS_ADDR, w, h); | ||
311 | } | ||