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[hh.org.git] / arch / arm / mach-pxa / h5400 / h5400_lcd.c
blob6493dcbc55d714d722fd33cc54b2e695097dfcf6
1 /*
2 * LCD support for iPAQ H5400
3 *
4 * Copyright © 2003 Keith Packard
5 * Copyright © 2003, 2005 Phil Blundell
6 *
7 * This file is subject to the terms and conditions of the GNU General Public
8 * License. See the file COPYING in the main directory of this archive for
9 * more details.
10 */
11
12 #include <linux/module.h>
13 #include <linux/init.h>
14 #include <linux/kernel.h>
15 #include <linux/tty.h>
16 #include <linux/sched.h>
17 #include <linux/delay.h>
18 #include <linux/pm.h>
19 #include <linux/lcd.h>
20 #include <linux/backlight.h>
21 #include <linux/fb.h>
22 #include <linux/platform_device.h>
23 #include <linux/soc-old.h>
24 #include <linux/err.h>
25 #include "../drivers/soc/mq11xx.h"
26
27 #include <asm/mach-types.h>
28 #include <asm/hardware.h>
29 #include <asm/arch/ipaq.h>
30 #include <asm/arch/h5400-asic.h>
31 #include <asm/hardware/samcop_base.h>
32
33 static struct lcd_device *mqfb_lcd_device;
34 static struct backlight_device *mqfb_backlight_device;
35
36 /* protects FP regs during RMW sequences */
37 static spinlock_t fp_regs_lock;
38
39 #define MQ_BASE 0x04000000
40
41 /*
42 * Some H5400 devices have different LCDs installed that require this
43 * other timing. Phil Blundell was blessed with one of these
44 * This is marked in the ENVEE bit (fp[9] & 2), the sharp
45 * LCD version has ENVEE bit 0, the phillips has that bit 1.
46 */
47 static struct mediaq11xx_init_data mq1100_init_phillips = {
48 /* DC */
49 {
50 /* dc00 */ 0x00000001,
51 /* dc01 */ 0x00000003,
52 /* dc02 */ 0x00000001,
53 /* dc03 NOT SET */ 0x0,
54 /* dc04 */ 0x00000004,
55 /* dc05 */ 0x00000003,
56 },
57 /* CC */
58 {
59 /* cc00 */ 0x00000000,
60 /* cc01 */ 0x00001010,
61 /* cc02 */ 0x00000a22,
62 /* cc03 */ 0x00000000,
63 /* cc04 */ 0x00000004,
64 },
65 /* MIU */
66 {
67 /* mm00 */ 0x00000001,
68 /* mm01 */ 0x1b676ca8,
69 /* mm02 */ 0x00000000,
70 /* mm03 */ 0x00001479,
71 /* mm04 */ 0x6bfc2d76,
72 },
73 /* GC */
74 {
75 /* gc00 */ 0x051100c8, /* powered down */
76 /* gc01 */ 0x00000000,
77 /* gc02 */ 0x00f8013b,
78 /* gc03 */ 0x013f0150,
79 /* gc04 */ 0x01370132,
80 /* gc05 */ 0x01510150,
81 /* gc06 */ 0x00000000,
82 /* gc07 NOT SET */ 0x0,
83 /* gc08 */ 0x00ef0000,
84 /* gc09 */ 0x013f0000,
85 /* gc0a */ 0x00000000,
86 /* gc0b */ 0x006e0037,
87 /* gc0c */ 0x00000000,
88 /* gc0d */ 0x00066373,
89 /* gc0e */ 0x000001e0,
90 /* gc0f NOT SET */ 0x0,
91 /* gc10 */ 0x02ff07ff,
92 /* gc11 */ 0x000000ff,
93 /* gc12 NOT SET */ 0x0,
94 /* gc13 NOT SET */ 0x0,
95 /* gc14 */ 0x00000000,
96 /* gc15 */ 0x00000000,
97 /* gc16 */ 0x00000000,
98 /* gc17 */ 0x00000000,
99 /* gc18 */ 0x00000000,
100 /* gc19 */ 0x00000000,
101 /* gc1a */ 0x00000000,
102 },
103 /* FP */
104 {
105 /* fp00 */ 0x00006120,
106 /* fp01 */ 0x00bcc02c,
107 /* fp02 */ 0xfffcfcfd,
108 /* fp03 */ 0x00000002,
109 /* fp04 */ 0x80bd0001,
110 /* fp05 */ 0xc3000000,
111 /* fp06 */ 0xa0000000,
112 /* fp07 */ 0x00040005,
113 /* fp08 */ 0x00040005,
114 /* fp09 NOT SET */ 0x0,
115 /* fp0a */ 0x00000000,
116 /* fp0b */ 0x00000000,
117 /* fp0c NOT SET */ 0x0,
118 /* fp0d NOT SET */ 0x0,
119 /* fp0e NOT SET */ 0x0,
120 /* fp0f */ 0x00000120,
121 /* fp10 */ 0x2645a216,
122 /* fp11 */ 0x1941d898,
123 /* fp12 */ 0xc2f5b84c,
124 /* fp13 */ 0x411585dd,
125 /* fp14 */ 0xad1d0a85,
126 /* fp15 */ 0xd7928b26,
127 /* fp16 */ 0x4848e722,
128 /* fp17 */ 0x696d0932,
129 /* fp18 */ 0xf2d20075,
130 /* fp19 */ 0xd547235e,
131 /* fp1a */ 0x310304f6,
132 /* fp1b */ 0x3cef4474,
133 /* fp1c */ 0x22a3d351,
134 /* fp1d */ 0x01825700,
135 /* fp1e */ 0xb7d793d1,
136 /* fp1f */ 0x10906408,
137 /* fp20 */ 0x0,
138 /* fp21 */ 0x0,
139 /* fp22 */ 0x0,
140 /* fp23 */ 0x0,
141 /* fp24 */ 0x0,
142 /* fp25 */ 0x0,
143 /* fp26 */ 0x0,
144 /* fp27 */ 0x0,
145 /* fp28 */ 0x0,
146 /* fp29 */ 0x0,
147 /* fp2a */ 0x0,
148 /* fp2b */ 0x0,
149 /* fp2c */ 0x0,
150 /* fp2d */ 0x0,
151 /* fp2e */ 0x0,
152 /* fp2f */ 0x0,
153 /* fp30 */ 0x7ba9b45b,
154 /* fp31 */ 0xb56738c3,
155 /* fp32 */ 0xde47a2ba,
156 /* fp33 */ 0x88241cf0,
157 /* fp34 */ 0x35c661b2,
158 /* fp35 */ 0x7ae04b8d,
159 /* fp36 */ 0x7acb010d,
160 /* fp37 */ 0xa216c122,
161 /* fp38 */ 0xd64fb56a,
162 /* fp39 */ 0xe2b4dea9,
163 /* fp3a */ 0x4267c3f7,
164 /* fp3b */ 0x9b75c799,
165 /* fp3c */ 0x01aee179,
166 /* fp3d */ 0x586fd0a8,
167 /* fp3e */ 0x4eeb130e,
168 /* fp3f */ 0x42604a40,
169 /* fp40 */ 0x0,
170 /* fp41 */ 0x0,
171 /* fp42 */ 0x0,
172 /* fp43 */ 0x0,
173 /* fp44 */ 0x0,
174 /* fp45 */ 0x0,
175 /* fp46 */ 0x0,
176 /* fp47 */ 0x0,
177 /* fp48 */ 0x0,
178 /* fp49 */ 0x0,
179 /* fp4a */ 0x0,
180 /* fp4b */ 0x0,
181 /* fp4c */ 0x0,
182 /* fp4d */ 0x0,
183 /* fp4e */ 0x0,
184 /* fp4f */ 0x0,
185 /* fp50 */ 0x0,
186 /* fp51 */ 0x0,
187 /* fp52 */ 0x0,
188 /* fp53 */ 0x0,
189 /* fp54 */ 0x0,
190 /* fp55 */ 0x0,
191 /* fp56 */ 0x0,
192 /* fp57 */ 0x0,
193 /* fp58 */ 0x0,
194 /* fp59 */ 0x0,
195 /* fp5a */ 0x0,
196 /* fp5b */ 0x0,
197 /* fp5c */ 0x0,
198 /* fp5d */ 0x0,
199 /* fp5e */ 0x0,
200 /* fp5f */ 0x0,
201 /* fp60 */ 0x0,
202 /* fp61 */ 0x0,
203 /* fp62 */ 0x0,
204 /* fp63 */ 0x0,
205 /* fp64 */ 0x0,
206 /* fp65 */ 0x0,
207 /* fp66 */ 0x0,
208 /* fp67 */ 0x0,
209 /* fp68 */ 0x0,
210 /* fp69 */ 0x0,
211 /* fp6a */ 0x0,
212 /* fp6b */ 0x0,
213 /* fp6c */ 0x0,
214 /* fp6d */ 0x0,
215 /* fp6e */ 0x0,
216 /* fp6f */ 0x0,
217 /* fp70 */ 0x405,
218 /* fp71 */ 0xced6a94e,
219 /* fp72 */ 0x2,
220 /* fp73 */ 0x0,
221 /* fp74 */ 0x0,
222 /* fp75 */ 0x0,
223 /* fp76 */ 0x95f9c859,
224 /* fp77 */ 0x30388dc9,
225 },
226 /* GE */
227 {
228 /* ge00 NOT SET */ 0x0,
229 /* ge01 NOT SET */ 0x0,
230 /* ge02 NOT SET */ 0x0,
231 /* ge03 NOT SET */ 0x0,
232 /* ge04 NOT SET */ 0x0,
233 /* ge05 NOT SET */ 0x0,
234 /* ge06 NOT SET */ 0x0,
235 /* ge07 NOT SET */ 0x0,
236 /* ge08 NOT SET */ 0x0,
237 /* ge09 NOT SET */ 0x0,
238 /* ge0a */ 0x40000280,
239 /* ge0b */ 0x00000000,
240 },
241 };
242
243 static struct mediaq11xx_init_data mq1100_init_sharp = {
244 /* DC */
245 {
246 /* dc00 */ 0x00000001,
247 /* dc01 */ 0x00000003,
248 /* dc02 */ 0x00000001,
249 /* dc03 NOT SET */ 0x0,
250 /* dc04 */ 0x00000004,
251 /* dc05 */ 0x00000003,
252 },
253 /* CC */
254 {
255 /* cc00 */ 0x00000000,
256 /* cc01 */ 0x00001010,
257 /* cc02 */ 0x000002a2,
258 /* cc03 */ 0x00000000,
259 /* cc04 */ 0x00000004,
260 },
261 /* MIU */
262 {
263 /* mm00 */ 0x00000001,
264 /* mm01 */ 0x1b676ca8,
265 /* mm02 */ 0x00000000,
266 /* mm03 */ 0x00001479,
267 /* mm04 */ 0x6bfc2d76,
268 },
269 /* GC */
270 {
271 /* gc00 */ 0x080100c8, /* powered down */
272 /* gc01 */ 0x00000000,
273 /* gc02 */ 0x00f0011a,
274 /* gc03 */ 0x013f015f,
275 /* gc04 */ 0x011100fa,
276 /* gc05 */ 0x015a0158,
277 /* gc06 */ 0x00000000,
278 /* gc07 NOT SET */ 0x0,
279 /* gc08 */ 0x00ef0000,
280 /* gc09 */ 0x013f0000,
281 /* gc0a */ 0x00000000,
282 /* gc0b */ 0x011700f2,
283 /* gc0c */ 0x00000000,
284 /* gc0d */ 0x00066373,
285 /* gc0e */ 0x000001e0,
286 /* gc0f NOT SET */ 0x0,
287 /* gc10 */ 0x02ff07ff,
288 /* gc11 */ 0x000000ff,
289 /* gc12 NOT SET */ 0x0,
290 /* gc13 NOT SET */ 0x0,
291 /* gc14 */ 0x00000000,
292 /* gc15 */ 0x00000000,
293 /* gc16 */ 0x00000000,
294 /* gc17 */ 0x00000000,
295 /* gc18 */ 0x00000000,
296 /* gc19 */ 0x00000000,
297 /* gc1a */ 0x00000000,
298 },
299 /* FP */
300 {
301 /* fp00 */ 0x00006120,
302 /* fp01 */ 0x003d5008,
303 /* fp02 */ 0xfffcfcfd,
304 /* fp03 */ 0x00000002,
305 /* fp04 */ 0x80bd0001,
306 /* fp05 */ 0xc9000000,
307 /* fp06 */ 0x80000000,
308 /* fp07 */ 0x00040005,
309 /* fp08 */ 0x00040004,
310 /* fp09 NOT SET */ 0x0,
311 /* fp0a */ 0x00000000,
312 /* fp0b */ 0x00000000,
313 /* fp0c NOT SET */ 0x0,
314 /* fp0d NOT SET */ 0x0,
315 /* fp0e NOT SET */ 0x0,
316 /* fp0f */ 0x00000120,
317 /* fp10 */ 0x2645a216,
318 /* fp11 */ 0x1941d898,
319 /* fp12 */ 0xc2f5b84c,
320 /* fp13 */ 0x411585dd,
321 /* fp14 */ 0xad1d0a85,
322 /* fp15 */ 0xd7928b26,
323 /* fp16 */ 0x4848e722,
324 /* fp17 */ 0x696d0932,
325 /* fp18 */ 0xf2d20075,
326 /* fp19 */ 0xd547235e,
327 /* fp1a */ 0x310304f6,
328 /* fp1b */ 0x3cef4474,
329 /* fp1c */ 0x22a3d351,
330 /* fp1d */ 0x01825700,
331 /* fp1e */ 0xb7d793d1,
332 /* fp1f */ 0x10906408,
333 /* fp20 */ 0x0,
334 /* fp21 */ 0x0,
335 /* fp22 */ 0x0,
336 /* fp23 */ 0x0,
337 /* fp24 */ 0x0,
338 /* fp25 */ 0x0,
339 /* fp26 */ 0x0,
340 /* fp27 */ 0x0,
341 /* fp28 */ 0x0,
342 /* fp29 */ 0x0,
343 /* fp2a */ 0x0,
344 /* fp2b */ 0x0,
345 /* fp2c */ 0x0,
346 /* fp2d */ 0x0,
347 /* fp2e */ 0x0,
348 /* fp2f */ 0x0,
349 /* fp30 */ 0x7ba9b45b,
350 /* fp31 */ 0xb56738c3,
351 /* fp32 */ 0xde47a2ba,
352 /* fp33 */ 0x88241cf0,
353 /* fp34 */ 0x35c661b2,
354 /* fp35 */ 0x7ae04b8d,
355 /* fp36 */ 0x7acb010d,
356 /* fp37 */ 0xa216c122,
357 /* fp38 */ 0xd64fb56a,
358 /* fp39 */ 0xe2b4dea9,
359 /* fp3a */ 0x4267c3f7,
360 /* fp3b */ 0x9b75c799,
361 /* fp3c */ 0x01aee179,
362 /* fp3d */ 0x586fd0a8,
363 /* fp3e */ 0x4eeb130e,
364 /* fp3f */ 0x42604a40,
365 /* fp40 */ 0x0,
366 /* fp41 */ 0x0,
367 /* fp42 */ 0x0,
368 /* fp43 */ 0x0,
369 /* fp44 */ 0x0,
370 /* fp45 */ 0x0,
371 /* fp46 */ 0x0,
372 /* fp47 */ 0x0,
373 /* fp48 */ 0x0,
374 /* fp49 */ 0x0,
375 /* fp4a */ 0x0,
376 /* fp4b */ 0x0,
377 /* fp4c */ 0x0,
378 /* fp4d */ 0x0,
379 /* fp4e */ 0x0,
380 /* fp4f */ 0x0,
381 /* fp50 */ 0x0,
382 /* fp51 */ 0x0,
383 /* fp52 */ 0x0,
384 /* fp53 */ 0x0,
385 /* fp54 */ 0x0,
386 /* fp55 */ 0x0,
387 /* fp56 */ 0x0,
388 /* fp57 */ 0x0,
389 /* fp58 */ 0x0,
390 /* fp59 */ 0x0,
391 /* fp5a */ 0x0,
392 /* fp5b */ 0x0,
393 /* fp5c */ 0x0,
394 /* fp5d */ 0x0,
395 /* fp5e */ 0x0,
396 /* fp5f */ 0x0,
397 /* fp60 */ 0x0,
398 /* fp61 */ 0x0,
399 /* fp62 */ 0x0,
400 /* fp63 */ 0x0,
401 /* fp64 */ 0x0,
402 /* fp65 */ 0x0,
403 /* fp66 */ 0x0,
404 /* fp67 */ 0x0,
405 /* fp68 */ 0x0,
406 /* fp69 */ 0x0,
407 /* fp6a */ 0x0,
408 /* fp6b */ 0x0,
409 /* fp6c */ 0x0,
410 /* fp6d */ 0x0,
411 /* fp6e */ 0x0,
412 /* fp6f */ 0x0,
413 /* fp70 */ 0x405,
414 /* fp71 */ 0xced6a94e,
415 /* fp72 */ 0x2,
416 /* fp73 */ 0x0,
417 /* fp74 */ 0x0,
418 /* fp75 */ 0x0,
419 /* fp76 */ 0x95f9c859,
420 /* fp77 */ 0x30388dc9,
421 },
422 /* GE */
423 {
424 /* ge00 NOT SET */ 0x0,
425 /* ge01 NOT SET */ 0x0,
426 /* ge02 NOT SET */ 0x0,
427 /* ge03 NOT SET */ 0x0,
428 /* ge04 NOT SET */ 0x0,
429 /* ge05 NOT SET */ 0x0,
430 /* ge06 NOT SET */ 0x0,
431 /* ge07 NOT SET */ 0x0,
432 /* ge08 NOT SET */ 0x0,
433 /* ge09 NOT SET */ 0x0,
434 /* ge0a */ 0x40000280,
435 /* ge0b */ 0x00000000,
436 },
437 };
438
439 static int h5400_lcd_set_power (struct lcd_device *lm, int level)
440 {
441 struct mediaq11xx_base *mq_base = class_get_devdata (&lm->class_dev);
442
443 mq_base->set_power (mq_base, MEDIAQ_11XX_FP_DEVICE_ID, (level < 1) ? 1 : 0);
444
445 samcop_set_gpio_b (&h5400_samcop.dev,
446 SAMCOP_GPIO_GPB_LCD_EN,
447 (level < 1) ? SAMCOP_GPIO_GPB_LCD_EN : 0);
448 return 0;
449 }
450
451 static int h5400_lcd_get_power (struct lcd_device *lm)
452 {
453 if (samcop_get_gpio_b (&h5400_samcop.dev) & SAMCOP_GPIO_GPB_MQ_POWER_ON) {
454 if (samcop_get_gpio_b (&h5400_samcop.dev) & SAMCOP_GPIO_GPB_LCD_EN)
455 return 0;
456 else
457 return 2;
458 } else
459 return 4;
460 }
461
462 #if 0
463 static int
464 h5400_lcd_set_contrast (struct lcd_device *ld, int contrast)
465 {
466 struct mediaq11xx_base *mq_base = class_get_devdata (&ld->class_dev);
467 u32 x;
468
469 /* Well... this is kind of tricky but here's how it works:
470 * On 24-bit TFT panels the R,G,B channels are output via
471 * the FD0..FD23 MQ1132' outputs. There are separate enable
472 * bits for these pins in FP07R, which we will use.
473 * Basically we just mask out (setting them to '1')
474 * the lowest 1..8 bits of every color component thus
475 * effectively reducing the number of bits for them.
476 */
477 if (contrast > 7)
478 contrast = 7;
479 contrast = 7 ^ contrast;
480
481 x = (1 << contrast) - 1;
482
483 mq_base->regs->FP.pin_output_data |= 0x00ffffff;
484 mq_base->regs->FP.pin_output_select_1 =
485 (mq_base->regs->FP.pin_output_select_1 & 0xff000000) |
486 x | (x << 8) | (x << 16);
487
488 return 0;
489 }
490
491 static int
492 h5400_lcd_get_contrast (struct lcd_device *ld)
493 {
494 struct mediaq11xx_base *mq_base = class_get_devdata (&ld->class_dev);
495 u32 c, x;
496
497 x = (mq_base->regs->FP.pin_output_select_1 & 0x7f);
498 for (c = 7; x; x >>= 1, c--)
499 ;
500 return c;
501 }
502 #endif
503
504 static struct lcd_properties mq11xx_fb0_lcd = {
505 .owner = THIS_MODULE,
506 .get_power = h5400_lcd_get_power,
507 .set_power = h5400_lcd_set_power,
508 #if 0
509 .max_contrast = 7,
510 .get_contrast = h5400_lcd_get_contrast,
511 .set_contrast = h5400_lcd_set_contrast,
512 #endif
513 };
514
515 /***********************************************************************************
516 * Backlight
517 *
518 ***********************************************************************************/
519
520 static void
521 mq1100fb_set_pwm (struct mediaq11xx_base *base, unsigned char chan, unsigned char level)
522 {
523 unsigned long d, flags;
524 int shift = chan ? 24 : 8;
525
526 spin_lock_irqsave (&fp_regs_lock, flags);
527 d = base->regs->FP.pulse_width_mod_control;
528 d &= ~(0xff << shift);
529 d |= level << shift;
530 base->regs->FP.pulse_width_mod_control = d;
531 spin_unlock_irqrestore (&fp_regs_lock, flags);
532 }
533
534 static int
535 h5400_backlight_set_brightness (struct backlight_device *bd, int brightness)
536 {
537 struct mediaq11xx_base *mq_base = class_get_devdata (&bd->class_dev);
538
539 if (brightness > 0x3ff)
540 brightness = 0x3ff;
541
542 mq1100fb_set_pwm (mq_base, 0, (0x3ff - brightness) >> 2);
543
544 return 0;
545 }
546
547 static int
548 h5400_backlight_get_brightness (struct backlight_device *bd)
549 {
550 return 0;
551 }
552
553 static int
554 h5400_backlight_set_power (struct backlight_device *bl, int level)
555 {
556 samcop_set_gpio_b (&h5400_samcop.dev, SAMCOP_GPIO_GPB_BACKLIGHT_POWER_ON,
557 (level < 1) ? SAMCOP_GPIO_GPB_BACKLIGHT_POWER_ON : 0);
558
559 return 0;
560 }
561
562 #if 0
563 static int
564 h5400_backlight_get_power (struct backlight_device *bl)
565 {
566 return (samcop_get_gpio_b (&h5400_samcop.dev) & SAMCOP_GPIO_GPB_BACKLIGHT_POWER_ON) ? 0 : 4;
567 }
568 #endif
569
570 static int
571 h5400_backlight_update_status (struct backlight_device *bl)
572 {
573 h5400_backlight_set_power(bl, bl->props->power);
574 h5400_backlight_set_brightness(bl, bl->props->brightness);
575 return 0;
576 }
577
578 static struct backlight_properties mq11xx_fb0_bl = {
579 .owner = THIS_MODULE,
580 .update_status = h5400_backlight_update_status,
581 .max_brightness = 0x3ff,
582 .get_brightness = h5400_backlight_get_brightness,
583 };
584
585 static int
586 h5400_fp_probe (struct device *dev)
587 {
588 struct mediaq11xx_base *mq_base =
589 (struct mediaq11xx_base *)dev->platform_data;
590
591 spin_lock_init (&fp_regs_lock);
592
593 mqfb_backlight_device = backlight_device_register ("mq11xx_fb0",
594 mq_base, &mq11xx_fb0_bl);
595 if (IS_ERR (mqfb_backlight_device))
596 return PTR_ERR (mqfb_backlight_device);
597 mqfb_lcd_device = lcd_device_register ("mq11xx_fb0", mq_base,
598 &mq11xx_fb0_lcd);
599 if (IS_ERR (mqfb_lcd_device)) {
600 backlight_device_unregister (mqfb_backlight_device);
601 return PTR_ERR (mqfb_lcd_device);
602 }
603
604 /* Power up the backlight and LCD. */
605 h5400_lcd_set_power (mqfb_lcd_device, 0);
606 h5400_backlight_set_power (mqfb_backlight_device, 0);
607
608 return 0;
609 }
610
611 static int
612 h5400_fp_remove (struct device *dev)
613 {
614 backlight_device_unregister (mqfb_backlight_device);
615 lcd_device_unregister (mqfb_lcd_device);
616
617 return 0;
618 }
619
620 //static platform_device_id h5400_fp_device_ids[] = { { MEDIAQ_11XX_FP_DEVICE_ID }, { 0 } };
621
622 static struct device_driver h5400_fp_device_driver = {
623 .name = "mq11xx_lcd",
624 .bus = &platform_bus_type,
625 .probe = h5400_fp_probe,
626 .remove = h5400_fp_remove,
627 };
628
629 static struct resource mq1100_resources[] = {
630 /* Synchronous memory */
631 [0] = {
632 .start = MQ_BASE,
633 .end = MQ_BASE + MQ11xx_FB_SIZE - 1,
634 .flags = IORESOURCE_MEM,
635 },
636 /* Non-synchronous memory */
637 [1] = {
638 .start = MQ_BASE + MQ11xx_FB_SIZE + MQ11xx_REG_SIZE,
639 .end = MQ_BASE + MQ11xx_FB_SIZE * 2 - 1,
640 .flags = IORESOURCE_MEM,
641 },
642 /* MediaQ registers */
643 [2] = {
644 .start = MQ_BASE + MQ11xx_FB_SIZE,
645 .end = MQ_BASE + MQ11xx_FB_SIZE + MQ11xx_REG_SIZE - 1,
646 .flags = IORESOURCE_MEM,
647 },
648 /* MediaQ interrupt number -- @@@FIXME */
649 [3] = {
650 /* The MediaQ IRQ pin is unconnected on the h5xxx.
651 */
652 .start = (unsigned long)-1,
653 .flags = IORESOURCE_IRQ,
654 }
655 };
656
657 static void
658 h5400_mq_release (struct device *dev)
659 {
660 struct platform_device *pdev = to_platform_device (dev);
661 kfree (pdev);
662 }
663
664 static const struct platform_device h5400_mq1100 = {
665 .name = "mq11xx",
666 .id = 0,
667 .num_resources = ARRAY_SIZE(mq1100_resources),
668 .resource = mq1100_resources, /* XXX FIXME */
669 .dev = {
670 .release = h5400_mq_release
671 },
672 };
673
674 static struct mediaq11xx_init_data *
675 h5400_init_lcd_info (void)
676 {
677 u32 pin_input_data;
678 struct mediaq11xx_regs *regs;
679
680 regs = (struct mediaq11xx_regs *)ioremap (MQ_BASE + MQ11xx_FB_SIZE, MQ_BASE + MQ11xx_FB_SIZE + 0x1fff);
681 if (!regs)
682 return NULL;
683
684 /*
685 * Turn on the config module
686 */
687 regs->DC.config_1 = MQ_CONFIG_18_OSCILLATOR_INTERNAL;
688 mdelay (1); /* wait for the oscillator to stabilize */
689 regs->DC.config_2 = MQ_CONFIG_CC_MODULE_ENABLE;
690 mdelay (1); /* probably not needed... */
691 regs->FP.input_control |= MQ_FP_ENVEE;
692 pin_input_data = regs->FP.pin_input_data;
693 iounmap (regs);
694
695 if (pin_input_data & MQ_FP_ENVEE) {
696 printk ("REMOVEME: detected Philips LCD\n");
697 return &mq1100_init_phillips;
698 } else {
699 printk ("REMOVEME: detected Sharp LCD\n");
700 return &mq1100_init_sharp;
701 }
702 }
703
704 static struct platform_device *pdev;
705
706 static int __init
707 h5400_lcd_init(void)
708 {
709 int rc;
710
711 if (! machine_is_h5400 ())
712 return -ENODEV;
713
714 pdev = kmalloc (sizeof (*pdev), GFP_KERNEL);
715 if (!pdev)
716 return -ENOMEM;
717
718 /* power up the mediaq */
719 samcop_set_gpio_b (&h5400_samcop.dev, SAMCOP_GPIO_GPB_MQ_POWER_ON, SAMCOP_GPIO_GPB_MQ_POWER_ON);
720 mdelay (10);
721
722 rc = driver_register (&h5400_fp_device_driver);
723 if (rc)
724 return rc;
725
726 *pdev = h5400_mq1100;
727 pdev->dev.platform_data = h5400_init_lcd_info ();
728 rc = platform_device_register (pdev);
729 if (rc)
730 driver_unregister (&h5400_fp_device_driver);
731
732 return rc;
733 }
734
735 static void __exit
736 h5400_lcd_exit(void)
737 {
738 driver_unregister (&h5400_fp_device_driver);
739 platform_device_unregister (pdev);
740
741 samcop_set_gpio_b (&h5400_samcop.dev, SAMCOP_GPIO_GPB_MQ_POWER_ON, 0);
742 }
743
744 module_init (h5400_lcd_init);
745 module_exit (h5400_lcd_exit);
746
747 MODULE_AUTHOR ("Keith Packard <keithp@keithp.com>, Phil Blundell <pb@nexus.co.uk>");
748 MODULE_DESCRIPTION ("Framebuffer driver for iPAQ H5400");
749 MODULE_LICENSE ("GPL");
750 MODULE_SUPPORTED_DEVICE ("h5400_lcd");
751 //MODULE_DEVICE_TABLE (soc, h5400_fp_device_ids);
752
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