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-rw-r--r--firmware/target/arm/as3525/sansa-fuze/lcd-fuze.c452
-rw-r--r--firmware/target/arm/as3525/sansa-fuze/lcd-fuzev1.c88
2 files changed, 88 insertions, 452 deletions
diff --git a/firmware/target/arm/as3525/sansa-fuze/lcd-fuze.c b/firmware/target/arm/as3525/sansa-fuze/lcd-fuze.c
deleted file mode 100644
index 54d4d73183..0000000000
--- a/firmware/target/arm/as3525/sansa-fuze/lcd-fuze.c
+++ /dev/null
@@ -1,452 +0,0 @@
1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
9 *
10 * Copyright (C) 2008 by Dave Chapman
11 *
12 * LCD driver for the Sansa Fuze - controller unknown
13 *
14 * This program is free software; you can redistribute it and/or
15 * modify it under the terms of the GNU General Public License
16 * as published by the Free Software Foundation; either version 2
17 * of the License, or (at your option) any later version.
18 *
19 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
20 * KIND, either express or implied.
21 *
22 ****************************************************************************/
23#include "config.h"
24
25#include "cpu.h"
26#include "lcd.h"
27#include "file.h"
28#include "debug.h"
29#include "system.h"
30#include "clock-target.h"
31#include "dbop-as3525.h"
32
33/* The controller is unknown, but some registers appear to be the same as the
34 HD66789R */
35static bool display_on = false; /* is the display turned on? */
36
37/* register defines */
38#define R_START_OSC 0x00
39#define R_DRV_OUTPUT_CONTROL 0x01
40#define R_DRV_WAVEFORM_CONTROL 0x02
41#define R_ENTRY_MODE 0x03
42#define R_COMPARE_REG1 0x04
43#define R_COMPARE_REG2 0x05
44
45#define R_DISP_CONTROL1 0x07
46#define R_DISP_CONTROL2 0x08
47#define R_DISP_CONTROL3 0x09
48
49#define R_FRAME_CYCLE_CONTROL 0x0b
50#define R_EXT_DISP_IF_CONTROL 0x0c
51
52#define R_POWER_CONTROL1 0x10
53#define R_POWER_CONTROL2 0x11
54#define R_POWER_CONTROL3 0x12
55#define R_POWER_CONTROL4 0x13
56
57#define R_RAM_ADDR_SET 0x21
58#define R_WRITE_DATA_2_GRAM 0x22
59
60#define R_GAMMA_FINE_ADJ_POS1 0x30
61#define R_GAMMA_FINE_ADJ_POS2 0x31
62#define R_GAMMA_FINE_ADJ_POS3 0x32
63#define R_GAMMA_GRAD_ADJ_POS 0x33
64
65#define R_GAMMA_FINE_ADJ_NEG1 0x34
66#define R_GAMMA_FINE_ADJ_NEG2 0x35
67#define R_GAMMA_FINE_ADJ_NEG3 0x36
68#define R_GAMMA_GRAD_ADJ_NEG 0x37
69
70#define R_GAMMA_AMP_ADJ_RES_POS 0x38
71#define R_GAMMA_AMP_AVG_ADJ_RES_NEG 0x39
72
73#define R_GATE_SCAN_POS 0x40
74#define R_VERT_SCROLL_CONTROL 0x41
75#define R_1ST_SCR_DRV_POS 0x42
76#define R_2ND_SCR_DRV_POS 0x43
77#define R_HORIZ_RAM_ADDR_POS 0x44
78#define R_VERT_RAM_ADDR_POS 0x45
79
80/* Flip Flag */
81#define R_ENTRY_MODE_HORZ_NORMAL 0x7030
82#define R_ENTRY_MODE_HORZ_FLIPPED 0x7000
83static unsigned short r_entry_mode = R_ENTRY_MODE_HORZ_NORMAL;
84#define R_ENTRY_MODE_VERT 0x7038
85#define R_ENTRY_MODE_SOLID_VERT 0x1038
86/* FIXME */
87#define R_ENTRY_MODE_VIDEO_NORMAL 0x7038
88#define R_ENTRY_MODE_VIDEO_FLIPPED 0x7018
89
90/* Reverse Flag */
91#define R_DISP_CONTROL_NORMAL 0x0004
92#define R_DISP_CONTROL_REV 0x0000
93static unsigned short r_disp_control_rev = R_DISP_CONTROL_NORMAL;
94
95static const int xoffset = 20;
96
97static inline void lcd_delay(int x)
98{
99 do {
100 asm volatile ("nop\n");
101 } while (x--);
102}
103
104static void as3525_dbop_init(void)
105{
106 CGU_DBOP = (1<<3) | AS3525_DBOP_DIV;
107
108 DBOP_TIMPOL_01 = 0xe167e167;
109 DBOP_TIMPOL_23 = 0xe167006e;
110
111 /* short count: 16 | output data width: 16 | readstrobe line */
112 DBOP_CTRL = (1<<18|1<<12|1<<3);
113
114 GPIOB_AFSEL = 0xfc;
115 GPIOC_AFSEL = 0xff;
116
117 DBOP_TIMPOL_23 = 0x6000e;
118
119 /* short count: 16|enable write|output data width: 16|read strobe line */
120 DBOP_CTRL = (1<<18|1<<16|1<<12|1<<3);
121 DBOP_TIMPOL_01 = 0x6e167;
122 DBOP_TIMPOL_23 = 0xa167e06f;
123
124 /* TODO: The OF calls some other functions here, but maybe not important */
125}
126
127static void lcd_write_cmd(short cmd)
128{
129 /* Write register */
130 DBOP_TIMPOL_23 = 0xa167006e;
131 dbop_write_data(&cmd, 1);
132
133 lcd_delay(4);
134
135 DBOP_TIMPOL_23 = 0xa167e06f;
136}
137
138static void lcd_write_reg(int reg, int value)
139{
140 int16_t data = value;
141
142 lcd_write_cmd(reg);
143 dbop_write_data(&data, 1);
144}
145
146/*** hardware configuration ***/
147
148void lcd_set_contrast(int val)
149{
150 (void)val;
151}
152
153void lcd_set_invert_display(bool yesno)
154{
155 r_disp_control_rev = yesno ? R_DISP_CONTROL_REV :
156 R_DISP_CONTROL_NORMAL;
157
158 if (display_on)
159 {
160 lcd_write_reg(R_DISP_CONTROL1, 0x0013 | r_disp_control_rev);
161 }
162
163}
164
165#ifdef HAVE_LCD_FLIP
166static bool display_flipped = false;
167
168/* turn the display upside down */
169void lcd_set_flip(bool yesno)
170{
171 display_flipped = yesno;
172
173 r_entry_mode = yesno ? R_ENTRY_MODE_HORZ_FLIPPED :
174 R_ENTRY_MODE_HORZ_NORMAL;
175}
176#endif
177
178static void _display_on(void)
179{
180 /* Initialise in the same way as the original firmare */
181
182 lcd_write_reg(R_DISP_CONTROL1, 0);
183 lcd_write_reg(R_POWER_CONTROL4, 0);
184
185 lcd_write_reg(R_POWER_CONTROL2, 0x3704);
186 lcd_write_reg(0x14, 0x1a1b);
187 lcd_write_reg(R_POWER_CONTROL1, 0x3860);
188 lcd_write_reg(R_POWER_CONTROL4, 0x40);
189
190 lcd_write_reg(R_POWER_CONTROL4, 0x60);
191
192 lcd_write_reg(R_POWER_CONTROL4, 0x70);
193 lcd_write_reg(R_DRV_OUTPUT_CONTROL, 277);
194 lcd_write_reg(R_DRV_WAVEFORM_CONTROL, (7<<8));
195 lcd_write_reg(R_ENTRY_MODE, r_entry_mode);
196 lcd_write_reg(R_DISP_CONTROL2, 0x01);
197 lcd_write_reg(R_FRAME_CYCLE_CONTROL, (1<<10));
198 lcd_write_reg(R_EXT_DISP_IF_CONTROL, 0);
199
200 lcd_write_reg(R_GAMMA_FINE_ADJ_POS1, 0x40);
201 lcd_write_reg(R_GAMMA_FINE_ADJ_POS2, 0x0687);
202 lcd_write_reg(R_GAMMA_FINE_ADJ_POS3, 0x0306);
203 lcd_write_reg(R_GAMMA_GRAD_ADJ_POS, 0x104);
204 lcd_write_reg(R_GAMMA_FINE_ADJ_NEG1, 0x0585);
205 lcd_write_reg(R_GAMMA_FINE_ADJ_NEG2, 255+66);
206 lcd_write_reg(R_GAMMA_FINE_ADJ_NEG3, 0x0687+128);
207 lcd_write_reg(R_GAMMA_GRAD_ADJ_NEG, 259);
208 lcd_write_reg(R_GAMMA_AMP_ADJ_RES_POS, 0);
209 lcd_write_reg(R_GAMMA_AMP_AVG_ADJ_RES_NEG, 0);
210
211 lcd_write_reg(R_1ST_SCR_DRV_POS, (LCD_WIDTH - 1));
212 lcd_write_reg(R_2ND_SCR_DRV_POS, 0);
213 lcd_write_reg(R_HORIZ_RAM_ADDR_POS, (LCD_WIDTH - 1));
214 lcd_write_reg(R_VERT_RAM_ADDR_POS, 0);
215 lcd_write_reg(0x46, (((LCD_WIDTH - 1) + xoffset) << 8) | xoffset);
216 lcd_write_reg(0x47, (LCD_HEIGHT - 1));
217 lcd_write_reg(0x48, 0x0);
218
219 lcd_write_reg(R_DISP_CONTROL1, 0x11);
220 lcd_write_reg(R_DISP_CONTROL1, 0x13 | r_disp_control_rev);
221
222 display_on = true; /* must be done before calling lcd_update() */
223 lcd_update();
224}
225
226void lcd_init_device(void)
227{
228 as3525_dbop_init();
229
230 GPIOA_DIR |= (1<<5|1<<4|1<<3);
231 GPIOA_PIN(5) = 0;
232 GPIOA_PIN(3) = (1<<3);
233 GPIOA_PIN(4) = 0;
234 GPIOA_PIN(5) = (1<<5);
235
236 _display_on();
237}
238
239#if defined(HAVE_LCD_ENABLE)
240void lcd_enable(bool on)
241{
242 if (display_on == on)
243 return;
244
245 if(on)
246 {
247 lcd_write_reg(R_START_OSC, 1);
248 lcd_write_reg(R_POWER_CONTROL1, 0);
249 lcd_write_reg(R_POWER_CONTROL2, 0x3704);
250 lcd_write_reg(0x14, 0x1a1b);
251 lcd_write_reg(R_POWER_CONTROL1, 0x3860);
252 lcd_write_reg(R_POWER_CONTROL4, 0x40);
253 lcd_write_reg(R_POWER_CONTROL4, 0x60);
254 lcd_write_reg(R_POWER_CONTROL4, 112);
255 lcd_write_reg(R_DISP_CONTROL1, 0x11);
256 lcd_write_reg(R_DISP_CONTROL1, 0x13 | r_disp_control_rev);
257 display_on = true;
258 lcd_update(); /* Resync display */
259 send_event(LCD_EVENT_ACTIVATION, NULL);
260 sleep(0);
261
262 }
263 else
264 {
265 lcd_write_reg(R_DISP_CONTROL1, 0x22);
266 lcd_write_reg(R_DISP_CONTROL1, 0);
267 lcd_write_reg(R_POWER_CONTROL1, 1);
268 display_on = false;
269 }
270}
271#endif
272
273#if defined(HAVE_LCD_ENABLE) || defined(HAVE_LCD_SLEEP)
274bool lcd_active(void)
275{
276 return display_on;
277}
278#endif
279
280/*** update functions ***/
281
282/* FIXME : find the datasheet for this RENESAS controller so we identify the
283 * registers used in windowing code (not present in HD66789R) */
284
285/* Set horizontal window addresses */
286static void lcd_window_x(int xmin, int xmax)
287{
288 xmin += xoffset;
289 xmax += xoffset;
290 lcd_write_reg(R_HORIZ_RAM_ADDR_POS + 2, (xmax << 8) | xmin);
291 lcd_write_reg(R_RAM_ADDR_SET - 1, xmin);
292}
293
294/* Set vertical window addresses */
295static void lcd_window_y(int ymin, int ymax)
296{
297 lcd_write_reg(R_VERT_RAM_ADDR_POS + 2, ymax);
298 lcd_write_reg(R_VERT_RAM_ADDR_POS + 3, ymin);
299 lcd_write_reg(R_RAM_ADDR_SET, ymin);
300}
301
302static unsigned lcd_yuv_options = 0;
303
304void lcd_yuv_set_options(unsigned options)
305{
306 lcd_yuv_options = options;
307}
308
309
310#ifndef BOOTLOADER
311/* Line write helper function for lcd_yuv_blit. Write two lines of yuv420. */
312extern void lcd_write_yuv420_lines(unsigned char const * const src[3],
313 int width,
314 int stride);
315extern void lcd_write_yuv420_lines_odither(unsigned char const * const src[3],
316 int width,
317 int stride,
318 int x_screen, /* To align dither pattern */
319 int y_screen);
320
321/* Performance function to blit a YUV bitmap directly to the LCD
322 * src_x, src_y, width and height should be even
323 * x, y, width and height have to be within LCD bounds
324 */
325void lcd_blit_yuv(unsigned char * const src[3],
326 int src_x, int src_y, int stride,
327 int x, int y, int width, int height)
328{
329 unsigned char const * yuv_src[3];
330 off_t z;
331
332 /* Sorry, but width and height must be >= 2 or else */
333 width &= ~1;
334 height >>= 1;
335
336 z = stride*src_y;
337 yuv_src[0] = src[0] + z + src_x;
338 yuv_src[1] = src[1] + (z >> 2) + (src_x >> 1);
339 yuv_src[2] = src[2] + (yuv_src[1] - src[1]);
340
341#ifdef HAVE_LCD_FLIP
342 lcd_write_reg(R_ENTRY_MODE,
343 display_flipped ? R_ENTRY_MODE_VIDEO_FLIPPED : R_ENTRY_MODE_VIDEO_NORMAL
344 );
345#else
346 lcd_write_reg(R_ENTRY_MODE, R_ENTRY_MODE_VIDEO_NORMAL);
347#endif
348
349 lcd_window_x(x, x + width - 1);
350
351 if (lcd_yuv_options & LCD_YUV_DITHER)
352 {
353 do
354 {
355 lcd_window_y(y, y + 1);
356
357 lcd_write_cmd(R_WRITE_DATA_2_GRAM);
358
359 lcd_write_yuv420_lines_odither(yuv_src, width, stride, x, y);
360 yuv_src[0] += stride << 1; /* Skip down two luma lines */
361 yuv_src[1] += stride >> 1; /* Skip down one chroma line */
362 yuv_src[2] += stride >> 1;
363 y += 2;
364 }
365 while (--height > 0);
366 }
367 else
368 {
369 do
370 {
371 lcd_window_y(y, y + 1);
372
373 lcd_write_cmd(R_WRITE_DATA_2_GRAM);
374
375 lcd_write_yuv420_lines(yuv_src, width, stride);
376 yuv_src[0] += stride << 1; /* Skip down two luma lines */
377 yuv_src[1] += stride >> 1; /* Skip down one chroma line */
378 yuv_src[2] += stride >> 1;
379 y += 2;
380 }
381 while (--height > 0);
382 }
383}
384
385#endif
386
387
388/* Update the display.
389 This must be called after all other LCD functions that change the display. */
390void lcd_update(void)
391{
392 if (!display_on)
393 return;
394
395 lcd_write_reg(R_ENTRY_MODE, r_entry_mode);
396
397 lcd_window_x(0, LCD_WIDTH - 1);
398 lcd_window_y(0, LCD_HEIGHT - 1);
399
400 lcd_write_cmd(R_WRITE_DATA_2_GRAM);
401
402 dbop_write_data((fb_data*)lcd_framebuffer, LCD_WIDTH*LCD_HEIGHT);
403}
404
405/* Update a fraction of the display. */
406void lcd_update_rect(int x, int y, int width, int height)
407{
408 const fb_data *ptr;
409
410 if (!display_on)
411 return;
412
413 /* nothing to draw? */
414 if ((width <= 0) || (height <= 0) || (x >= LCD_WIDTH) ||
415 (y >= LCD_HEIGHT) || (x + width <= 0) || (y + height <= 0))
416 return;
417
418 if (x < 0)
419 { /* clip left */
420 width += x;
421 x = 0;
422 }
423 if (y < 0)
424 { /* clip top */
425 height += y;
426 y = 0;
427 }
428 if (x + width > LCD_WIDTH)
429 width = LCD_WIDTH - x; /* clip right */
430 if (y + height > LCD_HEIGHT)
431 height = LCD_HEIGHT - y; /* clip bottom */
432
433 lcd_write_reg(R_ENTRY_MODE, r_entry_mode);
434
435 /* we need to make x and width even to enable 32bit transfers */
436 width = (width + (x & 1) + 1) & ~1;
437 x &= ~1;
438
439 lcd_window_x(x, x + width - 1);
440 lcd_window_y(y, y + height -1);
441
442 lcd_write_cmd(R_WRITE_DATA_2_GRAM);
443
444 ptr = &lcd_framebuffer[y][x];
445
446 do
447 {
448 dbop_write_data(ptr, width);
449 ptr += LCD_WIDTH;
450 }
451 while (--height > 0);
452}
diff --git a/firmware/target/arm/as3525/sansa-fuze/lcd-fuzev1.c b/firmware/target/arm/as3525/sansa-fuze/lcd-fuzev1.c
new file mode 100644
index 0000000000..0c56ee3070
--- /dev/null
+++ b/firmware/target/arm/as3525/sansa-fuze/lcd-fuzev1.c
@@ -0,0 +1,88 @@
1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
9 *
10 * Copyright (C) 2008 by Dave Chapman
11 *
12 * LCD driver for the Sansa Fuze - controller unknown
13 *
14 * This program is free software; you can redistribute it and/or
15 * modify it under the terms of the GNU General Public License
16 * as published by the Free Software Foundation; either version 2
17 * of the License, or (at your option) any later version.
18 *
19 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
20 * KIND, either express or implied.
21 *
22 ****************************************************************************/
23#include "config.h"
24
25#include "cpu.h"
26#include "lcd.h"
27#include "system.h"
28#include "clock-target.h"
29#include "dbop-as3525.h"
30#include "lcd-fuze.h"
31
32void lcd_write_cmd(int16_t cmd)
33{
34 /* Write register */
35 DBOP_TIMPOL_23 = 0xa167006e;
36 dbop_write_data(&cmd, 1);
37
38 int delay = 4;
39 do {
40 nop;
41 } while(delay--);
42
43 DBOP_TIMPOL_23 = 0xa167e06f;
44}
45
46void lcd_write_reg(int reg, int value)
47{
48 int16_t data = value;
49
50 lcd_write_cmd(reg);
51 dbop_write_data(&data, 1);
52}
53
54
55static void as3525_dbop_init(void)
56{
57 CGU_DBOP = (1<<3) | AS3525_DBOP_DIV;
58
59 DBOP_TIMPOL_01 = 0xe167e167;
60 DBOP_TIMPOL_23 = 0xe167006e;
61
62 /* short count: 16 | output data width: 16 | readstrobe line */
63 DBOP_CTRL = (1<<18|1<<12|1<<3);
64
65 GPIOB_AFSEL = 0xfc;
66 GPIOC_AFSEL = 0xff;
67
68 DBOP_TIMPOL_23 = 0x6000e;
69
70 /* short count: 16|enable write|output data width: 16|read strobe line */
71 DBOP_CTRL = (1<<18|1<<16|1<<12|1<<3);
72 DBOP_TIMPOL_01 = 0x6e167;
73 DBOP_TIMPOL_23 = 0xa167e06f;
74}
75
76
77void lcd_init_device(void)
78{
79 as3525_dbop_init();
80
81 GPIOA_DIR |= (1<<5|1<<4|1<<3);
82 GPIOA_PIN(5) = 0;
83 GPIOA_PIN(3) = (1<<3);
84 GPIOA_PIN(4) = 0;
85 GPIOA_PIN(5) = (1<<5);
86
87 fuze_display_on();
88}
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