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9b53a9e2 YS |
1 | /* |
2 | * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved. | |
3 | * | |
4 | * Freescale DIU Frame Buffer device driver | |
5 | * | |
6 | * Authors: Hongjun Chen <hong-jun.chen@freescale.com> | |
7 | * Paul Widmer <paul.widmer@freescale.com> | |
8 | * Srikanth Srinivasan <srikanth.srinivasan@freescale.com> | |
9 | * York Sun <yorksun@freescale.com> | |
10 | * | |
11 | * Based on imxfb.c Copyright (C) 2004 S.Hauer, Pengutronix | |
12 | * | |
13 | * This program is free software; you can redistribute it and/or modify it | |
14 | * under the terms of the GNU General Public License as published by the | |
15 | * Free Software Foundation; either version 2 of the License, or (at your | |
16 | * option) any later version. | |
17 | * | |
18 | */ | |
19 | ||
20 | #include <linux/module.h> | |
21 | #include <linux/kernel.h> | |
22 | #include <linux/errno.h> | |
23 | #include <linux/string.h> | |
24 | #include <linux/slab.h> | |
25 | #include <linux/fb.h> | |
26 | #include <linux/init.h> | |
27 | #include <linux/dma-mapping.h> | |
28 | #include <linux/platform_device.h> | |
29 | #include <linux/interrupt.h> | |
30 | #include <linux/clk.h> | |
31 | #include <linux/uaccess.h> | |
32 | #include <linux/vmalloc.h> | |
33 | ||
34 | #include <linux/of_platform.h> | |
35 | ||
36 | #include <sysdev/fsl_soc.h> | |
37 | #include "fsl-diu-fb.h" | |
38 | ||
39 | /* | |
40 | * These parameters give default parameters | |
41 | * for video output 1024x768, | |
42 | * FIXME - change timing to proper amounts | |
43 | * hsync 31.5kHz, vsync 60Hz | |
44 | */ | |
45 | static struct fb_videomode __devinitdata fsl_diu_default_mode = { | |
46 | .refresh = 60, | |
47 | .xres = 1024, | |
48 | .yres = 768, | |
49 | .pixclock = 15385, | |
50 | .left_margin = 160, | |
51 | .right_margin = 24, | |
52 | .upper_margin = 29, | |
53 | .lower_margin = 3, | |
54 | .hsync_len = 136, | |
55 | .vsync_len = 6, | |
56 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, | |
57 | .vmode = FB_VMODE_NONINTERLACED | |
58 | }; | |
59 | ||
60 | static struct fb_videomode __devinitdata fsl_diu_mode_db[] = { | |
61 | { | |
62 | .name = "1024x768-60", | |
63 | .refresh = 60, | |
64 | .xres = 1024, | |
65 | .yres = 768, | |
66 | .pixclock = 15385, | |
67 | .left_margin = 160, | |
68 | .right_margin = 24, | |
69 | .upper_margin = 29, | |
70 | .lower_margin = 3, | |
71 | .hsync_len = 136, | |
72 | .vsync_len = 6, | |
73 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, | |
74 | .vmode = FB_VMODE_NONINTERLACED | |
75 | }, | |
76 | { | |
77 | .name = "1024x768-70", | |
78 | .refresh = 70, | |
79 | .xres = 1024, | |
80 | .yres = 768, | |
81 | .pixclock = 16886, | |
82 | .left_margin = 3, | |
83 | .right_margin = 3, | |
84 | .upper_margin = 2, | |
85 | .lower_margin = 2, | |
86 | .hsync_len = 40, | |
87 | .vsync_len = 18, | |
88 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, | |
89 | .vmode = FB_VMODE_NONINTERLACED | |
90 | }, | |
91 | { | |
92 | .name = "1024x768-75", | |
93 | .refresh = 75, | |
94 | .xres = 1024, | |
95 | .yres = 768, | |
96 | .pixclock = 15009, | |
97 | .left_margin = 3, | |
98 | .right_margin = 3, | |
99 | .upper_margin = 2, | |
100 | .lower_margin = 2, | |
101 | .hsync_len = 80, | |
102 | .vsync_len = 32, | |
103 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, | |
104 | .vmode = FB_VMODE_NONINTERLACED | |
105 | }, | |
106 | { | |
107 | .name = "1280x1024-60", | |
108 | .refresh = 60, | |
109 | .xres = 1280, | |
110 | .yres = 1024, | |
111 | .pixclock = 9375, | |
112 | .left_margin = 38, | |
113 | .right_margin = 128, | |
114 | .upper_margin = 2, | |
115 | .lower_margin = 7, | |
116 | .hsync_len = 216, | |
117 | .vsync_len = 37, | |
118 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, | |
119 | .vmode = FB_VMODE_NONINTERLACED | |
120 | }, | |
121 | { | |
122 | .name = "1280x1024-70", | |
123 | .refresh = 70, | |
124 | .xres = 1280, | |
125 | .yres = 1024, | |
126 | .pixclock = 9380, | |
127 | .left_margin = 6, | |
128 | .right_margin = 6, | |
129 | .upper_margin = 4, | |
130 | .lower_margin = 4, | |
131 | .hsync_len = 60, | |
132 | .vsync_len = 94, | |
133 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, | |
134 | .vmode = FB_VMODE_NONINTERLACED | |
135 | }, | |
136 | { | |
137 | .name = "1280x1024-75", | |
138 | .refresh = 75, | |
139 | .xres = 1280, | |
140 | .yres = 1024, | |
141 | .pixclock = 9380, | |
142 | .left_margin = 6, | |
143 | .right_margin = 6, | |
144 | .upper_margin = 4, | |
145 | .lower_margin = 4, | |
146 | .hsync_len = 60, | |
147 | .vsync_len = 15, | |
148 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, | |
149 | .vmode = FB_VMODE_NONINTERLACED | |
150 | }, | |
151 | { | |
152 | .name = "320x240", /* for AOI only */ | |
153 | .refresh = 60, | |
154 | .xres = 320, | |
155 | .yres = 240, | |
156 | .pixclock = 15385, | |
157 | .left_margin = 0, | |
158 | .right_margin = 0, | |
159 | .upper_margin = 0, | |
160 | .lower_margin = 0, | |
161 | .hsync_len = 0, | |
162 | .vsync_len = 0, | |
163 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, | |
164 | .vmode = FB_VMODE_NONINTERLACED | |
165 | }, | |
166 | { | |
167 | .name = "1280x480-60", | |
168 | .refresh = 60, | |
169 | .xres = 1280, | |
170 | .yres = 480, | |
171 | .pixclock = 18939, | |
172 | .left_margin = 353, | |
173 | .right_margin = 47, | |
174 | .upper_margin = 39, | |
175 | .lower_margin = 4, | |
176 | .hsync_len = 8, | |
177 | .vsync_len = 2, | |
178 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, | |
179 | .vmode = FB_VMODE_NONINTERLACED | |
180 | }, | |
181 | }; | |
182 | ||
183 | static char *fb_mode = "1024x768-32@60"; | |
184 | static unsigned long default_bpp = 32; | |
185 | static int monitor_port; | |
186 | ||
187 | #if defined(CONFIG_NOT_COHERENT_CACHE) | |
188 | static u8 *coherence_data; | |
189 | static size_t coherence_data_size; | |
190 | static unsigned int d_cache_line_size; | |
191 | #endif | |
192 | ||
193 | static DEFINE_SPINLOCK(diu_lock); | |
194 | ||
195 | struct fsl_diu_data { | |
196 | struct fb_info *fsl_diu_info[FSL_AOI_NUM - 1]; | |
197 | /*FSL_AOI_NUM has one dummy AOI */ | |
198 | struct device_attribute dev_attr; | |
199 | struct diu_ad *dummy_ad; | |
200 | void *dummy_aoi_virt; | |
201 | unsigned int irq; | |
202 | int fb_enabled; | |
203 | int monitor_port; | |
204 | }; | |
205 | ||
206 | struct mfb_info { | |
207 | int index; | |
208 | int type; | |
209 | char *id; | |
210 | int registered; | |
211 | int blank; | |
212 | unsigned long pseudo_palette[16]; | |
213 | struct diu_ad *ad; | |
214 | int cursor_reset; | |
215 | unsigned char g_alpha; | |
216 | unsigned int count; | |
217 | int x_aoi_d; /* aoi display x offset to physical screen */ | |
218 | int y_aoi_d; /* aoi display y offset to physical screen */ | |
219 | struct fsl_diu_data *parent; | |
220 | }; | |
221 | ||
222 | ||
223 | static struct mfb_info mfb_template[] = { | |
224 | { /* AOI 0 for plane 0 */ | |
225 | .index = 0, | |
226 | .type = MFB_TYPE_OUTPUT, | |
227 | .id = "Panel0", | |
228 | .registered = 0, | |
229 | .count = 0, | |
230 | .x_aoi_d = 0, | |
231 | .y_aoi_d = 0, | |
232 | }, | |
233 | { /* AOI 0 for plane 1 */ | |
234 | .index = 1, | |
235 | .type = MFB_TYPE_OUTPUT, | |
236 | .id = "Panel1 AOI0", | |
237 | .registered = 0, | |
238 | .g_alpha = 0xff, | |
239 | .count = 0, | |
240 | .x_aoi_d = 0, | |
241 | .y_aoi_d = 0, | |
242 | }, | |
243 | { /* AOI 1 for plane 1 */ | |
244 | .index = 2, | |
245 | .type = MFB_TYPE_OUTPUT, | |
246 | .id = "Panel1 AOI1", | |
247 | .registered = 0, | |
248 | .g_alpha = 0xff, | |
249 | .count = 0, | |
250 | .x_aoi_d = 0, | |
251 | .y_aoi_d = 480, | |
252 | }, | |
253 | { /* AOI 0 for plane 2 */ | |
254 | .index = 3, | |
255 | .type = MFB_TYPE_OUTPUT, | |
256 | .id = "Panel2 AOI0", | |
257 | .registered = 0, | |
258 | .g_alpha = 0xff, | |
259 | .count = 0, | |
260 | .x_aoi_d = 640, | |
261 | .y_aoi_d = 0, | |
262 | }, | |
263 | { /* AOI 1 for plane 2 */ | |
264 | .index = 4, | |
265 | .type = MFB_TYPE_OUTPUT, | |
266 | .id = "Panel2 AOI1", | |
267 | .registered = 0, | |
268 | .g_alpha = 0xff, | |
269 | .count = 0, | |
270 | .x_aoi_d = 640, | |
271 | .y_aoi_d = 480, | |
272 | }, | |
273 | }; | |
274 | ||
275 | static struct diu_hw dr = { | |
276 | .mode = MFB_MODE1, | |
277 | .reg_lock = __SPIN_LOCK_UNLOCKED(diu_hw.reg_lock), | |
278 | }; | |
279 | ||
280 | static struct diu_pool pool; | |
281 | ||
6b51d51a TT |
282 | /** |
283 | * fsl_diu_alloc - allocate memory for the DIU | |
284 | * @size: number of bytes to allocate | |
285 | * @param: returned physical address of memory | |
286 | * | |
287 | * This function allocates a physically-contiguous block of memory. | |
9b53a9e2 | 288 | */ |
6b51d51a | 289 | static void *fsl_diu_alloc(size_t size, phys_addr_t *phys) |
9b53a9e2 YS |
290 | { |
291 | void *virt; | |
292 | ||
6b51d51a | 293 | pr_debug("size=%zu\n", size); |
9b53a9e2 | 294 | |
6b51d51a | 295 | virt = alloc_pages_exact(size, GFP_DMA | __GFP_ZERO); |
9b53a9e2 YS |
296 | if (virt) { |
297 | *phys = virt_to_phys(virt); | |
6b51d51a TT |
298 | pr_debug("virt=%p phys=%llx\n", virt, |
299 | (unsigned long long)*phys); | |
9b53a9e2 YS |
300 | } |
301 | ||
9b53a9e2 YS |
302 | return virt; |
303 | } | |
304 | ||
6b51d51a TT |
305 | /** |
306 | * fsl_diu_free - release DIU memory | |
307 | * @virt: pointer returned by fsl_diu_alloc() | |
308 | * @size: number of bytes allocated by fsl_diu_alloc() | |
309 | * | |
310 | * This function releases memory allocated by fsl_diu_alloc(). | |
311 | */ | |
312 | static void fsl_diu_free(void *virt, size_t size) | |
9b53a9e2 | 313 | { |
6b51d51a | 314 | pr_debug("virt=%p size=%zu\n", virt, size); |
9b53a9e2 | 315 | |
6b51d51a TT |
316 | if (virt && size) |
317 | free_pages_exact(virt, size); | |
9b53a9e2 YS |
318 | } |
319 | ||
320 | static int fsl_diu_enable_panel(struct fb_info *info) | |
321 | { | |
322 | struct mfb_info *pmfbi, *cmfbi, *mfbi = info->par; | |
323 | struct diu *hw = dr.diu_reg; | |
324 | struct diu_ad *ad = mfbi->ad; | |
325 | struct fsl_diu_data *machine_data = mfbi->parent; | |
326 | int res = 0; | |
327 | ||
328 | pr_debug("enable_panel index %d\n", mfbi->index); | |
329 | if (mfbi->type != MFB_TYPE_OFF) { | |
330 | switch (mfbi->index) { | |
331 | case 0: /* plane 0 */ | |
332 | if (hw->desc[0] != ad->paddr) | |
333 | out_be32(&hw->desc[0], ad->paddr); | |
334 | break; | |
335 | case 1: /* plane 1 AOI 0 */ | |
336 | cmfbi = machine_data->fsl_diu_info[2]->par; | |
337 | if (hw->desc[1] != ad->paddr) { /* AOI0 closed */ | |
338 | if (cmfbi->count > 0) /* AOI1 open */ | |
339 | ad->next_ad = | |
340 | cpu_to_le32(cmfbi->ad->paddr); | |
341 | else | |
342 | ad->next_ad = 0; | |
343 | out_be32(&hw->desc[1], ad->paddr); | |
344 | } | |
345 | break; | |
346 | case 3: /* plane 2 AOI 0 */ | |
347 | cmfbi = machine_data->fsl_diu_info[4]->par; | |
348 | if (hw->desc[2] != ad->paddr) { /* AOI0 closed */ | |
349 | if (cmfbi->count > 0) /* AOI1 open */ | |
350 | ad->next_ad = | |
351 | cpu_to_le32(cmfbi->ad->paddr); | |
352 | else | |
353 | ad->next_ad = 0; | |
354 | out_be32(&hw->desc[2], ad->paddr); | |
355 | } | |
356 | break; | |
357 | case 2: /* plane 1 AOI 1 */ | |
358 | pmfbi = machine_data->fsl_diu_info[1]->par; | |
359 | ad->next_ad = 0; | |
360 | if (hw->desc[1] == machine_data->dummy_ad->paddr) | |
361 | out_be32(&hw->desc[1], ad->paddr); | |
362 | else /* AOI0 open */ | |
363 | pmfbi->ad->next_ad = cpu_to_le32(ad->paddr); | |
364 | break; | |
365 | case 4: /* plane 2 AOI 1 */ | |
366 | pmfbi = machine_data->fsl_diu_info[3]->par; | |
367 | ad->next_ad = 0; | |
368 | if (hw->desc[2] == machine_data->dummy_ad->paddr) | |
369 | out_be32(&hw->desc[2], ad->paddr); | |
370 | else /* AOI0 was open */ | |
371 | pmfbi->ad->next_ad = cpu_to_le32(ad->paddr); | |
372 | break; | |
373 | default: | |
374 | res = -EINVAL; | |
375 | break; | |
376 | } | |
377 | } else | |
378 | res = -EINVAL; | |
379 | return res; | |
380 | } | |
381 | ||
382 | static int fsl_diu_disable_panel(struct fb_info *info) | |
383 | { | |
384 | struct mfb_info *pmfbi, *cmfbi, *mfbi = info->par; | |
385 | struct diu *hw = dr.diu_reg; | |
386 | struct diu_ad *ad = mfbi->ad; | |
387 | struct fsl_diu_data *machine_data = mfbi->parent; | |
388 | int res = 0; | |
389 | ||
390 | switch (mfbi->index) { | |
391 | case 0: /* plane 0 */ | |
392 | if (hw->desc[0] != machine_data->dummy_ad->paddr) | |
393 | out_be32(&hw->desc[0], | |
394 | machine_data->dummy_ad->paddr); | |
395 | break; | |
396 | case 1: /* plane 1 AOI 0 */ | |
397 | cmfbi = machine_data->fsl_diu_info[2]->par; | |
398 | if (cmfbi->count > 0) /* AOI1 is open */ | |
399 | out_be32(&hw->desc[1], cmfbi->ad->paddr); | |
400 | /* move AOI1 to the first */ | |
401 | else /* AOI1 was closed */ | |
402 | out_be32(&hw->desc[1], | |
403 | machine_data->dummy_ad->paddr); | |
404 | /* close AOI 0 */ | |
405 | break; | |
406 | case 3: /* plane 2 AOI 0 */ | |
407 | cmfbi = machine_data->fsl_diu_info[4]->par; | |
408 | if (cmfbi->count > 0) /* AOI1 is open */ | |
409 | out_be32(&hw->desc[2], cmfbi->ad->paddr); | |
410 | /* move AOI1 to the first */ | |
411 | else /* AOI1 was closed */ | |
412 | out_be32(&hw->desc[2], | |
413 | machine_data->dummy_ad->paddr); | |
414 | /* close AOI 0 */ | |
415 | break; | |
416 | case 2: /* plane 1 AOI 1 */ | |
417 | pmfbi = machine_data->fsl_diu_info[1]->par; | |
418 | if (hw->desc[1] != ad->paddr) { | |
419 | /* AOI1 is not the first in the chain */ | |
420 | if (pmfbi->count > 0) | |
421 | /* AOI0 is open, must be the first */ | |
422 | pmfbi->ad->next_ad = 0; | |
423 | } else /* AOI1 is the first in the chain */ | |
424 | out_be32(&hw->desc[1], machine_data->dummy_ad->paddr); | |
425 | /* close AOI 1 */ | |
426 | break; | |
427 | case 4: /* plane 2 AOI 1 */ | |
428 | pmfbi = machine_data->fsl_diu_info[3]->par; | |
429 | if (hw->desc[2] != ad->paddr) { | |
430 | /* AOI1 is not the first in the chain */ | |
431 | if (pmfbi->count > 0) | |
432 | /* AOI0 is open, must be the first */ | |
433 | pmfbi->ad->next_ad = 0; | |
434 | } else /* AOI1 is the first in the chain */ | |
435 | out_be32(&hw->desc[2], machine_data->dummy_ad->paddr); | |
436 | /* close AOI 1 */ | |
437 | break; | |
438 | default: | |
439 | res = -EINVAL; | |
440 | break; | |
441 | } | |
442 | ||
443 | return res; | |
444 | } | |
445 | ||
446 | static void enable_lcdc(struct fb_info *info) | |
447 | { | |
448 | struct diu *hw = dr.diu_reg; | |
449 | struct mfb_info *mfbi = info->par; | |
450 | struct fsl_diu_data *machine_data = mfbi->parent; | |
451 | ||
452 | if (!machine_data->fb_enabled) { | |
453 | out_be32(&hw->diu_mode, dr.mode); | |
454 | machine_data->fb_enabled++; | |
455 | } | |
456 | } | |
457 | ||
458 | static void disable_lcdc(struct fb_info *info) | |
459 | { | |
460 | struct diu *hw = dr.diu_reg; | |
461 | struct mfb_info *mfbi = info->par; | |
462 | struct fsl_diu_data *machine_data = mfbi->parent; | |
463 | ||
464 | if (machine_data->fb_enabled) { | |
465 | out_be32(&hw->diu_mode, 0); | |
466 | machine_data->fb_enabled = 0; | |
467 | } | |
468 | } | |
469 | ||
470 | static void adjust_aoi_size_position(struct fb_var_screeninfo *var, | |
471 | struct fb_info *info) | |
472 | { | |
473 | struct mfb_info *lower_aoi_mfbi, *upper_aoi_mfbi, *mfbi = info->par; | |
474 | struct fsl_diu_data *machine_data = mfbi->parent; | |
475 | int available_height, upper_aoi_bottom, index = mfbi->index; | |
476 | int lower_aoi_is_open, upper_aoi_is_open; | |
477 | __u32 base_plane_width, base_plane_height, upper_aoi_height; | |
478 | ||
479 | base_plane_width = machine_data->fsl_diu_info[0]->var.xres; | |
480 | base_plane_height = machine_data->fsl_diu_info[0]->var.yres; | |
481 | ||
fdfaa483 YS |
482 | if (mfbi->x_aoi_d < 0) |
483 | mfbi->x_aoi_d = 0; | |
484 | if (mfbi->y_aoi_d < 0) | |
485 | mfbi->y_aoi_d = 0; | |
9b53a9e2 YS |
486 | switch (index) { |
487 | case 0: | |
488 | if (mfbi->x_aoi_d != 0) | |
489 | mfbi->x_aoi_d = 0; | |
490 | if (mfbi->y_aoi_d != 0) | |
491 | mfbi->y_aoi_d = 0; | |
492 | break; | |
493 | case 1: /* AOI 0 */ | |
494 | case 3: | |
495 | lower_aoi_mfbi = machine_data->fsl_diu_info[index+1]->par; | |
496 | lower_aoi_is_open = lower_aoi_mfbi->count > 0 ? 1 : 0; | |
497 | if (var->xres > base_plane_width) | |
498 | var->xres = base_plane_width; | |
499 | if ((mfbi->x_aoi_d + var->xres) > base_plane_width) | |
500 | mfbi->x_aoi_d = base_plane_width - var->xres; | |
501 | ||
502 | if (lower_aoi_is_open) | |
503 | available_height = lower_aoi_mfbi->y_aoi_d; | |
504 | else | |
505 | available_height = base_plane_height; | |
506 | if (var->yres > available_height) | |
507 | var->yres = available_height; | |
508 | if ((mfbi->y_aoi_d + var->yres) > available_height) | |
509 | mfbi->y_aoi_d = available_height - var->yres; | |
510 | break; | |
511 | case 2: /* AOI 1 */ | |
512 | case 4: | |
513 | upper_aoi_mfbi = machine_data->fsl_diu_info[index-1]->par; | |
514 | upper_aoi_height = | |
515 | machine_data->fsl_diu_info[index-1]->var.yres; | |
516 | upper_aoi_bottom = upper_aoi_mfbi->y_aoi_d + upper_aoi_height; | |
517 | upper_aoi_is_open = upper_aoi_mfbi->count > 0 ? 1 : 0; | |
518 | if (var->xres > base_plane_width) | |
519 | var->xres = base_plane_width; | |
520 | if ((mfbi->x_aoi_d + var->xres) > base_plane_width) | |
521 | mfbi->x_aoi_d = base_plane_width - var->xres; | |
522 | if (mfbi->y_aoi_d < 0) | |
523 | mfbi->y_aoi_d = 0; | |
524 | if (upper_aoi_is_open) { | |
525 | if (mfbi->y_aoi_d < upper_aoi_bottom) | |
526 | mfbi->y_aoi_d = upper_aoi_bottom; | |
527 | available_height = base_plane_height | |
528 | - upper_aoi_bottom; | |
529 | } else | |
530 | available_height = base_plane_height; | |
531 | if (var->yres > available_height) | |
532 | var->yres = available_height; | |
533 | if ((mfbi->y_aoi_d + var->yres) > base_plane_height) | |
534 | mfbi->y_aoi_d = base_plane_height - var->yres; | |
535 | break; | |
536 | } | |
537 | } | |
538 | /* | |
539 | * Checks to see if the hardware supports the state requested by var passed | |
540 | * in. This function does not alter the hardware state! If the var passed in | |
541 | * is slightly off by what the hardware can support then we alter the var | |
542 | * PASSED in to what we can do. If the hardware doesn't support mode change | |
543 | * a -EINVAL will be returned by the upper layers. | |
544 | */ | |
545 | static int fsl_diu_check_var(struct fb_var_screeninfo *var, | |
546 | struct fb_info *info) | |
547 | { | |
548 | unsigned long htotal, vtotal; | |
549 | ||
550 | pr_debug("check_var xres: %d\n", var->xres); | |
551 | pr_debug("check_var yres: %d\n", var->yres); | |
552 | ||
553 | if (var->xres_virtual < var->xres) | |
554 | var->xres_virtual = var->xres; | |
555 | if (var->yres_virtual < var->yres) | |
556 | var->yres_virtual = var->yres; | |
557 | ||
558 | if (var->xoffset < 0) | |
559 | var->xoffset = 0; | |
560 | ||
561 | if (var->yoffset < 0) | |
562 | var->yoffset = 0; | |
563 | ||
564 | if (var->xoffset + info->var.xres > info->var.xres_virtual) | |
565 | var->xoffset = info->var.xres_virtual - info->var.xres; | |
566 | ||
567 | if (var->yoffset + info->var.yres > info->var.yres_virtual) | |
568 | var->yoffset = info->var.yres_virtual - info->var.yres; | |
569 | ||
570 | if ((var->bits_per_pixel != 32) && (var->bits_per_pixel != 24) && | |
571 | (var->bits_per_pixel != 16)) | |
572 | var->bits_per_pixel = default_bpp; | |
573 | ||
574 | switch (var->bits_per_pixel) { | |
575 | case 16: | |
576 | var->red.length = 5; | |
577 | var->red.offset = 11; | |
578 | var->red.msb_right = 0; | |
579 | ||
580 | var->green.length = 6; | |
581 | var->green.offset = 5; | |
582 | var->green.msb_right = 0; | |
583 | ||
584 | var->blue.length = 5; | |
585 | var->blue.offset = 0; | |
586 | var->blue.msb_right = 0; | |
587 | ||
588 | var->transp.length = 0; | |
589 | var->transp.offset = 0; | |
590 | var->transp.msb_right = 0; | |
591 | break; | |
592 | case 24: | |
593 | var->red.length = 8; | |
594 | var->red.offset = 0; | |
595 | var->red.msb_right = 0; | |
596 | ||
597 | var->green.length = 8; | |
598 | var->green.offset = 8; | |
599 | var->green.msb_right = 0; | |
600 | ||
601 | var->blue.length = 8; | |
602 | var->blue.offset = 16; | |
603 | var->blue.msb_right = 0; | |
604 | ||
605 | var->transp.length = 0; | |
606 | var->transp.offset = 0; | |
607 | var->transp.msb_right = 0; | |
608 | break; | |
609 | case 32: | |
610 | var->red.length = 8; | |
611 | var->red.offset = 16; | |
612 | var->red.msb_right = 0; | |
613 | ||
614 | var->green.length = 8; | |
615 | var->green.offset = 8; | |
616 | var->green.msb_right = 0; | |
617 | ||
618 | var->blue.length = 8; | |
619 | var->blue.offset = 0; | |
620 | var->blue.msb_right = 0; | |
621 | ||
622 | var->transp.length = 8; | |
623 | var->transp.offset = 24; | |
624 | var->transp.msb_right = 0; | |
625 | ||
626 | break; | |
627 | } | |
628 | /* If the pixclock is below the minimum spec'd value then set to | |
629 | * refresh rate for 60Hz since this is supported by most monitors. | |
630 | * Refer to Documentation/fb/ for calculations. | |
631 | */ | |
632 | if ((var->pixclock < MIN_PIX_CLK) || (var->pixclock > MAX_PIX_CLK)) { | |
633 | htotal = var->xres + var->right_margin + var->hsync_len + | |
634 | var->left_margin; | |
635 | vtotal = var->yres + var->lower_margin + var->vsync_len + | |
636 | var->upper_margin; | |
637 | var->pixclock = (vtotal * htotal * 6UL) / 100UL; | |
638 | var->pixclock = KHZ2PICOS(var->pixclock); | |
639 | pr_debug("pixclock set for 60Hz refresh = %u ps\n", | |
640 | var->pixclock); | |
641 | } | |
642 | ||
643 | var->height = -1; | |
644 | var->width = -1; | |
645 | var->grayscale = 0; | |
646 | ||
647 | /* Copy nonstd field to/from sync for fbset usage */ | |
648 | var->sync |= var->nonstd; | |
649 | var->nonstd |= var->sync; | |
650 | ||
651 | adjust_aoi_size_position(var, info); | |
652 | return 0; | |
653 | } | |
654 | ||
655 | static void set_fix(struct fb_info *info) | |
656 | { | |
657 | struct fb_fix_screeninfo *fix = &info->fix; | |
658 | struct fb_var_screeninfo *var = &info->var; | |
659 | struct mfb_info *mfbi = info->par; | |
660 | ||
661 | strncpy(fix->id, mfbi->id, strlen(mfbi->id)); | |
662 | fix->line_length = var->xres_virtual * var->bits_per_pixel / 8; | |
663 | fix->type = FB_TYPE_PACKED_PIXELS; | |
664 | fix->accel = FB_ACCEL_NONE; | |
665 | fix->visual = FB_VISUAL_TRUECOLOR; | |
666 | fix->xpanstep = 1; | |
667 | fix->ypanstep = 1; | |
668 | } | |
669 | ||
670 | static void update_lcdc(struct fb_info *info) | |
671 | { | |
672 | struct fb_var_screeninfo *var = &info->var; | |
673 | struct mfb_info *mfbi = info->par; | |
674 | struct fsl_diu_data *machine_data = mfbi->parent; | |
675 | struct diu *hw; | |
676 | int i, j; | |
677 | char __iomem *cursor_base, *gamma_table_base; | |
678 | ||
679 | u32 temp; | |
680 | ||
681 | hw = dr.diu_reg; | |
682 | ||
683 | if (mfbi->type == MFB_TYPE_OFF) { | |
684 | fsl_diu_disable_panel(info); | |
685 | return; | |
686 | } | |
687 | ||
688 | diu_ops.set_monitor_port(machine_data->monitor_port); | |
689 | gamma_table_base = pool.gamma.vaddr; | |
690 | cursor_base = pool.cursor.vaddr; | |
691 | /* Prep for DIU init - gamma table, cursor table */ | |
692 | ||
693 | for (i = 0; i <= 2; i++) | |
694 | for (j = 0; j <= 255; j++) | |
695 | *gamma_table_base++ = j; | |
696 | ||
697 | diu_ops.set_gamma_table(machine_data->monitor_port, pool.gamma.vaddr); | |
698 | ||
699 | pr_debug("update-lcdc: HW - %p\n Disabling DIU\n", hw); | |
700 | disable_lcdc(info); | |
701 | ||
702 | /* Program DIU registers */ | |
703 | ||
704 | out_be32(&hw->gamma, pool.gamma.paddr); | |
705 | out_be32(&hw->cursor, pool.cursor.paddr); | |
706 | ||
707 | out_be32(&hw->bgnd, 0x007F7F7F); /* BGND */ | |
708 | out_be32(&hw->bgnd_wb, 0); /* BGND_WB */ | |
709 | out_be32(&hw->disp_size, (var->yres << 16 | var->xres)); | |
710 | /* DISP SIZE */ | |
711 | pr_debug("DIU xres: %d\n", var->xres); | |
712 | pr_debug("DIU yres: %d\n", var->yres); | |
713 | ||
714 | out_be32(&hw->wb_size, 0); /* WB SIZE */ | |
715 | out_be32(&hw->wb_mem_addr, 0); /* WB MEM ADDR */ | |
716 | ||
717 | /* Horizontal and vertical configuration register */ | |
718 | temp = var->left_margin << 22 | /* BP_H */ | |
719 | var->hsync_len << 11 | /* PW_H */ | |
720 | var->right_margin; /* FP_H */ | |
721 | ||
722 | out_be32(&hw->hsyn_para, temp); | |
723 | ||
724 | temp = var->upper_margin << 22 | /* BP_V */ | |
725 | var->vsync_len << 11 | /* PW_V */ | |
726 | var->lower_margin; /* FP_V */ | |
727 | ||
728 | out_be32(&hw->vsyn_para, temp); | |
729 | ||
730 | pr_debug("DIU right_margin - %d\n", var->right_margin); | |
731 | pr_debug("DIU left_margin - %d\n", var->left_margin); | |
732 | pr_debug("DIU hsync_len - %d\n", var->hsync_len); | |
733 | pr_debug("DIU upper_margin - %d\n", var->upper_margin); | |
734 | pr_debug("DIU lower_margin - %d\n", var->lower_margin); | |
735 | pr_debug("DIU vsync_len - %d\n", var->vsync_len); | |
736 | pr_debug("DIU HSYNC - 0x%08x\n", hw->hsyn_para); | |
737 | pr_debug("DIU VSYNC - 0x%08x\n", hw->vsyn_para); | |
738 | ||
739 | diu_ops.set_pixel_clock(var->pixclock); | |
740 | ||
741 | out_be32(&hw->syn_pol, 0); /* SYNC SIGNALS POLARITY */ | |
742 | out_be32(&hw->thresholds, 0x00037800); /* The Thresholds */ | |
743 | out_be32(&hw->int_status, 0); /* INTERRUPT STATUS */ | |
744 | out_be32(&hw->plut, 0x01F5F666); | |
745 | ||
746 | /* Enable the DIU */ | |
747 | enable_lcdc(info); | |
748 | } | |
749 | ||
750 | static int map_video_memory(struct fb_info *info) | |
751 | { | |
752 | phys_addr_t phys; | |
537a1bf0 | 753 | u32 smem_len = info->fix.line_length * info->var.yres_virtual; |
9b53a9e2 YS |
754 | |
755 | pr_debug("info->var.xres_virtual = %d\n", info->var.xres_virtual); | |
756 | pr_debug("info->var.yres_virtual = %d\n", info->var.yres_virtual); | |
757 | pr_debug("info->fix.line_length = %d\n", info->fix.line_length); | |
537a1bf0 | 758 | pr_debug("MAP_VIDEO_MEMORY: smem_len = %u\n", smem_len); |
9b53a9e2 | 759 | |
537a1bf0 | 760 | info->screen_base = fsl_diu_alloc(smem_len, &phys); |
05946bce | 761 | if (info->screen_base == NULL) { |
9b53a9e2 YS |
762 | printk(KERN_ERR "Unable to allocate fb memory\n"); |
763 | return -ENOMEM; | |
764 | } | |
537a1bf0 | 765 | mutex_lock(&info->mm_lock); |
9b53a9e2 | 766 | info->fix.smem_start = (unsigned long) phys; |
537a1bf0 KH |
767 | info->fix.smem_len = smem_len; |
768 | mutex_unlock(&info->mm_lock); | |
9b53a9e2 YS |
769 | info->screen_size = info->fix.smem_len; |
770 | ||
771 | pr_debug("Allocated fb @ paddr=0x%08lx, size=%d.\n", | |
537a1bf0 | 772 | info->fix.smem_start, info->fix.smem_len); |
9b53a9e2 YS |
773 | pr_debug("screen base %p\n", info->screen_base); |
774 | ||
775 | return 0; | |
776 | } | |
777 | ||
778 | static void unmap_video_memory(struct fb_info *info) | |
779 | { | |
780 | fsl_diu_free(info->screen_base, info->fix.smem_len); | |
537a1bf0 | 781 | mutex_lock(&info->mm_lock); |
05946bce | 782 | info->screen_base = NULL; |
9b53a9e2 YS |
783 | info->fix.smem_start = 0; |
784 | info->fix.smem_len = 0; | |
537a1bf0 | 785 | mutex_unlock(&info->mm_lock); |
9b53a9e2 YS |
786 | } |
787 | ||
ae5591e3 YS |
788 | /* |
789 | * Using the fb_var_screeninfo in fb_info we set the aoi of this | |
790 | * particular framebuffer. It is a light version of fsl_diu_set_par. | |
791 | */ | |
792 | static int fsl_diu_set_aoi(struct fb_info *info) | |
793 | { | |
794 | struct fb_var_screeninfo *var = &info->var; | |
795 | struct mfb_info *mfbi = info->par; | |
796 | struct diu_ad *ad = mfbi->ad; | |
797 | ||
798 | /* AOI should not be greater than display size */ | |
799 | ad->offset_xyi = cpu_to_le32((var->yoffset << 16) | var->xoffset); | |
800 | ad->offset_xyd = cpu_to_le32((mfbi->y_aoi_d << 16) | mfbi->x_aoi_d); | |
801 | return 0; | |
802 | } | |
803 | ||
9b53a9e2 YS |
804 | /* |
805 | * Using the fb_var_screeninfo in fb_info we set the resolution of this | |
806 | * particular framebuffer. This function alters the fb_fix_screeninfo stored | |
807 | * in fb_info. It does not alter var in fb_info since we are using that | |
808 | * data. This means we depend on the data in var inside fb_info to be | |
809 | * supported by the hardware. fsl_diu_check_var is always called before | |
810 | * fsl_diu_set_par to ensure this. | |
811 | */ | |
812 | static int fsl_diu_set_par(struct fb_info *info) | |
813 | { | |
814 | unsigned long len; | |
815 | struct fb_var_screeninfo *var = &info->var; | |
816 | struct mfb_info *mfbi = info->par; | |
817 | struct fsl_diu_data *machine_data = mfbi->parent; | |
818 | struct diu_ad *ad = mfbi->ad; | |
819 | struct diu *hw; | |
820 | ||
821 | hw = dr.diu_reg; | |
822 | ||
823 | set_fix(info); | |
824 | mfbi->cursor_reset = 1; | |
825 | ||
826 | len = info->var.yres_virtual * info->fix.line_length; | |
827 | /* Alloc & dealloc each time resolution/bpp change */ | |
828 | if (len != info->fix.smem_len) { | |
829 | if (info->fix.smem_start) | |
830 | unmap_video_memory(info); | |
831 | pr_debug("SET PAR: smem_len = %d\n", info->fix.smem_len); | |
832 | ||
833 | /* Memory allocation for framebuffer */ | |
834 | if (map_video_memory(info)) { | |
835 | printk(KERN_ERR "Unable to allocate fb memory 1\n"); | |
836 | return -ENOMEM; | |
837 | } | |
838 | } | |
839 | ||
840 | ad->pix_fmt = | |
841 | diu_ops.get_pixel_format(var->bits_per_pixel, | |
842 | machine_data->monitor_port); | |
843 | ad->addr = cpu_to_le32(info->fix.smem_start); | |
ae5591e3 YS |
844 | ad->src_size_g_alpha = cpu_to_le32((var->yres_virtual << 12) | |
845 | var->xres_virtual) | mfbi->g_alpha; | |
846 | /* AOI should not be greater than display size */ | |
9b53a9e2 | 847 | ad->aoi_size = cpu_to_le32((var->yres << 16) | var->xres); |
ae5591e3 | 848 | ad->offset_xyi = cpu_to_le32((var->yoffset << 16) | var->xoffset); |
9b53a9e2 YS |
849 | ad->offset_xyd = cpu_to_le32((mfbi->y_aoi_d << 16) | mfbi->x_aoi_d); |
850 | ||
851 | /* Disable chroma keying function */ | |
852 | ad->ckmax_r = 0; | |
853 | ad->ckmax_g = 0; | |
854 | ad->ckmax_b = 0; | |
855 | ||
856 | ad->ckmin_r = 255; | |
857 | ad->ckmin_g = 255; | |
858 | ad->ckmin_b = 255; | |
859 | ||
860 | if (mfbi->index == 0) | |
861 | update_lcdc(info); | |
862 | return 0; | |
863 | } | |
864 | ||
865 | static inline __u32 CNVT_TOHW(__u32 val, __u32 width) | |
866 | { | |
867 | return ((val<<width) + 0x7FFF - val)>>16; | |
868 | } | |
869 | ||
870 | /* | |
871 | * Set a single color register. The values supplied have a 16 bit magnitude | |
872 | * which needs to be scaled in this function for the hardware. Things to take | |
873 | * into consideration are how many color registers, if any, are supported with | |
874 | * the current color visual. With truecolor mode no color palettes are | |
875 | * supported. Here a psuedo palette is created which we store the value in | |
876 | * pseudo_palette in struct fb_info. For pseudocolor mode we have a limited | |
877 | * color palette. | |
878 | */ | |
879 | static int fsl_diu_setcolreg(unsigned regno, unsigned red, unsigned green, | |
880 | unsigned blue, unsigned transp, struct fb_info *info) | |
881 | { | |
882 | int ret = 1; | |
883 | ||
884 | /* | |
885 | * If greyscale is true, then we convert the RGB value | |
886 | * to greyscale no matter what visual we are using. | |
887 | */ | |
888 | if (info->var.grayscale) | |
889 | red = green = blue = (19595 * red + 38470 * green + | |
890 | 7471 * blue) >> 16; | |
891 | switch (info->fix.visual) { | |
892 | case FB_VISUAL_TRUECOLOR: | |
893 | /* | |
894 | * 16-bit True Colour. We encode the RGB value | |
895 | * according to the RGB bitfield information. | |
896 | */ | |
897 | if (regno < 16) { | |
898 | u32 *pal = info->pseudo_palette; | |
899 | u32 v; | |
900 | ||
901 | red = CNVT_TOHW(red, info->var.red.length); | |
902 | green = CNVT_TOHW(green, info->var.green.length); | |
903 | blue = CNVT_TOHW(blue, info->var.blue.length); | |
904 | transp = CNVT_TOHW(transp, info->var.transp.length); | |
905 | ||
906 | v = (red << info->var.red.offset) | | |
907 | (green << info->var.green.offset) | | |
908 | (blue << info->var.blue.offset) | | |
909 | (transp << info->var.transp.offset); | |
910 | ||
911 | pal[regno] = v; | |
912 | ret = 0; | |
913 | } | |
914 | break; | |
915 | case FB_VISUAL_STATIC_PSEUDOCOLOR: | |
916 | case FB_VISUAL_PSEUDOCOLOR: | |
917 | break; | |
918 | } | |
919 | ||
920 | return ret; | |
921 | } | |
922 | ||
923 | /* | |
924 | * Pan (or wrap, depending on the `vmode' field) the display using the | |
925 | * 'xoffset' and 'yoffset' fields of the 'var' structure. If the values | |
926 | * don't fit, return -EINVAL. | |
927 | */ | |
928 | static int fsl_diu_pan_display(struct fb_var_screeninfo *var, | |
929 | struct fb_info *info) | |
930 | { | |
931 | if ((info->var.xoffset == var->xoffset) && | |
932 | (info->var.yoffset == var->yoffset)) | |
933 | return 0; /* No change, do nothing */ | |
934 | ||
935 | if (var->xoffset < 0 || var->yoffset < 0 | |
936 | || var->xoffset + info->var.xres > info->var.xres_virtual | |
937 | || var->yoffset + info->var.yres > info->var.yres_virtual) | |
938 | return -EINVAL; | |
939 | ||
940 | info->var.xoffset = var->xoffset; | |
941 | info->var.yoffset = var->yoffset; | |
942 | ||
943 | if (var->vmode & FB_VMODE_YWRAP) | |
944 | info->var.vmode |= FB_VMODE_YWRAP; | |
945 | else | |
946 | info->var.vmode &= ~FB_VMODE_YWRAP; | |
947 | ||
ae5591e3 YS |
948 | fsl_diu_set_aoi(info); |
949 | ||
9b53a9e2 YS |
950 | return 0; |
951 | } | |
952 | ||
953 | /* | |
954 | * Blank the screen if blank_mode != 0, else unblank. Return 0 if blanking | |
955 | * succeeded, != 0 if un-/blanking failed. | |
956 | * blank_mode == 2: suspend vsync | |
957 | * blank_mode == 3: suspend hsync | |
958 | * blank_mode == 4: powerdown | |
959 | */ | |
960 | static int fsl_diu_blank(int blank_mode, struct fb_info *info) | |
961 | { | |
962 | struct mfb_info *mfbi = info->par; | |
963 | ||
964 | mfbi->blank = blank_mode; | |
965 | ||
966 | switch (blank_mode) { | |
967 | case FB_BLANK_VSYNC_SUSPEND: | |
968 | case FB_BLANK_HSYNC_SUSPEND: | |
969 | /* FIXME: fixes to enable_panel and enable lcdc needed */ | |
970 | case FB_BLANK_NORMAL: | |
971 | /* fsl_diu_disable_panel(info);*/ | |
972 | break; | |
973 | case FB_BLANK_POWERDOWN: | |
974 | /* disable_lcdc(info); */ | |
975 | break; | |
976 | case FB_BLANK_UNBLANK: | |
977 | /* fsl_diu_enable_panel(info);*/ | |
978 | break; | |
979 | } | |
980 | ||
981 | return 0; | |
982 | } | |
983 | ||
984 | static int fsl_diu_ioctl(struct fb_info *info, unsigned int cmd, | |
985 | unsigned long arg) | |
986 | { | |
987 | struct mfb_info *mfbi = info->par; | |
988 | struct diu_ad *ad = mfbi->ad; | |
989 | struct mfb_chroma_key ck; | |
990 | unsigned char global_alpha; | |
991 | struct aoi_display_offset aoi_d; | |
992 | __u32 pix_fmt; | |
993 | void __user *buf = (void __user *)arg; | |
994 | ||
995 | if (!arg) | |
996 | return -EINVAL; | |
997 | switch (cmd) { | |
998 | case MFB_SET_PIXFMT: | |
999 | if (copy_from_user(&pix_fmt, buf, sizeof(pix_fmt))) | |
1000 | return -EFAULT; | |
1001 | ad->pix_fmt = pix_fmt; | |
1002 | pr_debug("Set pixel format to 0x%08x\n", ad->pix_fmt); | |
1003 | break; | |
1004 | case MFB_GET_PIXFMT: | |
1005 | pix_fmt = ad->pix_fmt; | |
1006 | if (copy_to_user(buf, &pix_fmt, sizeof(pix_fmt))) | |
1007 | return -EFAULT; | |
1008 | pr_debug("get pixel format 0x%08x\n", ad->pix_fmt); | |
1009 | break; | |
1010 | case MFB_SET_AOID: | |
1011 | if (copy_from_user(&aoi_d, buf, sizeof(aoi_d))) | |
1012 | return -EFAULT; | |
1013 | mfbi->x_aoi_d = aoi_d.x_aoi_d; | |
1014 | mfbi->y_aoi_d = aoi_d.y_aoi_d; | |
1015 | pr_debug("set AOI display offset of index %d to (%d,%d)\n", | |
1016 | mfbi->index, aoi_d.x_aoi_d, aoi_d.y_aoi_d); | |
1017 | fsl_diu_check_var(&info->var, info); | |
ae5591e3 | 1018 | fsl_diu_set_aoi(info); |
9b53a9e2 YS |
1019 | break; |
1020 | case MFB_GET_AOID: | |
1021 | aoi_d.x_aoi_d = mfbi->x_aoi_d; | |
1022 | aoi_d.y_aoi_d = mfbi->y_aoi_d; | |
1023 | if (copy_to_user(buf, &aoi_d, sizeof(aoi_d))) | |
1024 | return -EFAULT; | |
1025 | pr_debug("get AOI display offset of index %d (%d,%d)\n", | |
1026 | mfbi->index, aoi_d.x_aoi_d, aoi_d.y_aoi_d); | |
1027 | break; | |
1028 | case MFB_GET_ALPHA: | |
1029 | global_alpha = mfbi->g_alpha; | |
1030 | if (copy_to_user(buf, &global_alpha, sizeof(global_alpha))) | |
1031 | return -EFAULT; | |
1032 | pr_debug("get global alpha of index %d\n", mfbi->index); | |
1033 | break; | |
1034 | case MFB_SET_ALPHA: | |
1035 | /* set panel information */ | |
1036 | if (copy_from_user(&global_alpha, buf, sizeof(global_alpha))) | |
1037 | return -EFAULT; | |
1038 | ad->src_size_g_alpha = (ad->src_size_g_alpha & (~0xff)) | | |
1039 | (global_alpha & 0xff); | |
1040 | mfbi->g_alpha = global_alpha; | |
1041 | pr_debug("set global alpha for index %d\n", mfbi->index); | |
1042 | break; | |
1043 | case MFB_SET_CHROMA_KEY: | |
1044 | /* set panel winformation */ | |
1045 | if (copy_from_user(&ck, buf, sizeof(ck))) | |
1046 | return -EFAULT; | |
1047 | ||
1048 | if (ck.enable && | |
1049 | (ck.red_max < ck.red_min || | |
1050 | ck.green_max < ck.green_min || | |
1051 | ck.blue_max < ck.blue_min)) | |
1052 | return -EINVAL; | |
1053 | ||
1054 | if (!ck.enable) { | |
1055 | ad->ckmax_r = 0; | |
1056 | ad->ckmax_g = 0; | |
1057 | ad->ckmax_b = 0; | |
1058 | ad->ckmin_r = 255; | |
1059 | ad->ckmin_g = 255; | |
1060 | ad->ckmin_b = 255; | |
1061 | } else { | |
1062 | ad->ckmax_r = ck.red_max; | |
1063 | ad->ckmax_g = ck.green_max; | |
1064 | ad->ckmax_b = ck.blue_max; | |
1065 | ad->ckmin_r = ck.red_min; | |
1066 | ad->ckmin_g = ck.green_min; | |
1067 | ad->ckmin_b = ck.blue_min; | |
1068 | } | |
1069 | pr_debug("set chroma key\n"); | |
1070 | break; | |
1071 | case FBIOGET_GWINFO: | |
1072 | if (mfbi->type == MFB_TYPE_OFF) | |
1073 | return -ENODEV; | |
1074 | /* get graphic window information */ | |
1075 | if (copy_to_user(buf, ad, sizeof(*ad))) | |
1076 | return -EFAULT; | |
1077 | break; | |
1078 | case FBIOGET_HWCINFO: | |
1079 | pr_debug("FBIOGET_HWCINFO:0x%08x\n", FBIOGET_HWCINFO); | |
1080 | break; | |
1081 | case FBIOPUT_MODEINFO: | |
1082 | pr_debug("FBIOPUT_MODEINFO:0x%08x\n", FBIOPUT_MODEINFO); | |
1083 | break; | |
1084 | case FBIOGET_DISPINFO: | |
1085 | pr_debug("FBIOGET_DISPINFO:0x%08x\n", FBIOGET_DISPINFO); | |
1086 | break; | |
1087 | ||
1088 | default: | |
1089 | printk(KERN_ERR "Unknown ioctl command (0x%08X)\n", cmd); | |
1090 | return -ENOIOCTLCMD; | |
1091 | } | |
1092 | ||
1093 | return 0; | |
1094 | } | |
1095 | ||
1096 | /* turn on fb if count == 1 | |
1097 | */ | |
1098 | static int fsl_diu_open(struct fb_info *info, int user) | |
1099 | { | |
1100 | struct mfb_info *mfbi = info->par; | |
1101 | int res = 0; | |
1102 | ||
1103 | spin_lock(&diu_lock); | |
1104 | mfbi->count++; | |
1105 | if (mfbi->count == 1) { | |
1106 | pr_debug("open plane index %d\n", mfbi->index); | |
1107 | fsl_diu_check_var(&info->var, info); | |
1108 | res = fsl_diu_set_par(info); | |
1109 | if (res < 0) | |
1110 | mfbi->count--; | |
1111 | else { | |
1112 | res = fsl_diu_enable_panel(info); | |
1113 | if (res < 0) | |
1114 | mfbi->count--; | |
1115 | } | |
1116 | } | |
1117 | ||
1118 | spin_unlock(&diu_lock); | |
1119 | return res; | |
1120 | } | |
1121 | ||
1122 | /* turn off fb if count == 0 | |
1123 | */ | |
1124 | static int fsl_diu_release(struct fb_info *info, int user) | |
1125 | { | |
1126 | struct mfb_info *mfbi = info->par; | |
1127 | int res = 0; | |
1128 | ||
1129 | spin_lock(&diu_lock); | |
1130 | mfbi->count--; | |
1131 | if (mfbi->count == 0) { | |
1132 | pr_debug("release plane index %d\n", mfbi->index); | |
1133 | res = fsl_diu_disable_panel(info); | |
1134 | if (res < 0) | |
1135 | mfbi->count++; | |
1136 | } | |
1137 | spin_unlock(&diu_lock); | |
1138 | return res; | |
1139 | } | |
1140 | ||
1141 | static struct fb_ops fsl_diu_ops = { | |
1142 | .owner = THIS_MODULE, | |
1143 | .fb_check_var = fsl_diu_check_var, | |
1144 | .fb_set_par = fsl_diu_set_par, | |
1145 | .fb_setcolreg = fsl_diu_setcolreg, | |
1146 | .fb_blank = fsl_diu_blank, | |
1147 | .fb_pan_display = fsl_diu_pan_display, | |
1148 | .fb_fillrect = cfb_fillrect, | |
1149 | .fb_copyarea = cfb_copyarea, | |
1150 | .fb_imageblit = cfb_imageblit, | |
1151 | .fb_ioctl = fsl_diu_ioctl, | |
1152 | .fb_open = fsl_diu_open, | |
1153 | .fb_release = fsl_diu_release, | |
1154 | }; | |
1155 | ||
1156 | static int init_fbinfo(struct fb_info *info) | |
1157 | { | |
1158 | struct mfb_info *mfbi = info->par; | |
1159 | ||
1160 | info->device = NULL; | |
1161 | info->var.activate = FB_ACTIVATE_NOW; | |
1162 | info->fbops = &fsl_diu_ops; | |
1163 | info->flags = FBINFO_FLAG_DEFAULT; | |
1164 | info->pseudo_palette = &mfbi->pseudo_palette; | |
1165 | ||
1166 | /* Allocate colormap */ | |
1167 | fb_alloc_cmap(&info->cmap, 16, 0); | |
1168 | return 0; | |
1169 | } | |
1170 | ||
05946bce | 1171 | static int __devinit install_fb(struct fb_info *info) |
9b53a9e2 YS |
1172 | { |
1173 | int rc; | |
1174 | struct mfb_info *mfbi = info->par; | |
1175 | const char *aoi_mode, *init_aoi_mode = "320x240"; | |
1176 | ||
1177 | if (init_fbinfo(info)) | |
1178 | return -EINVAL; | |
1179 | ||
1180 | if (mfbi->index == 0) /* plane 0 */ | |
1181 | aoi_mode = fb_mode; | |
1182 | else | |
1183 | aoi_mode = init_aoi_mode; | |
1184 | pr_debug("mode used = %s\n", aoi_mode); | |
1185 | rc = fb_find_mode(&info->var, info, aoi_mode, fsl_diu_mode_db, | |
1186 | ARRAY_SIZE(fsl_diu_mode_db), &fsl_diu_default_mode, default_bpp); | |
1187 | ||
1188 | switch (rc) { | |
1189 | case 1: | |
1190 | pr_debug("using mode specified in @mode\n"); | |
1191 | break; | |
1192 | case 2: | |
1193 | pr_debug("using mode specified in @mode " | |
1194 | "with ignored refresh rate\n"); | |
1195 | break; | |
1196 | case 3: | |
1197 | pr_debug("using mode default mode\n"); | |
1198 | break; | |
1199 | case 4: | |
1200 | pr_debug("using mode from list\n"); | |
1201 | break; | |
1202 | default: | |
1203 | pr_debug("rc = %d\n", rc); | |
1204 | pr_debug("failed to find mode\n"); | |
1205 | return -EINVAL; | |
1206 | break; | |
1207 | } | |
1208 | ||
1209 | pr_debug("xres_virtual %d\n", info->var.xres_virtual); | |
1210 | pr_debug("bits_per_pixel %d\n", info->var.bits_per_pixel); | |
1211 | ||
1212 | pr_debug("info->var.yres_virtual = %d\n", info->var.yres_virtual); | |
1213 | pr_debug("info->fix.line_length = %d\n", info->fix.line_length); | |
1214 | ||
1215 | if (mfbi->type == MFB_TYPE_OFF) | |
1216 | mfbi->blank = FB_BLANK_NORMAL; | |
1217 | else | |
1218 | mfbi->blank = FB_BLANK_UNBLANK; | |
1219 | ||
1220 | if (fsl_diu_check_var(&info->var, info)) { | |
1221 | printk(KERN_ERR "fb_check_var failed"); | |
1222 | fb_dealloc_cmap(&info->cmap); | |
1223 | return -EINVAL; | |
1224 | } | |
1225 | ||
9b53a9e2 YS |
1226 | if (register_framebuffer(info) < 0) { |
1227 | printk(KERN_ERR "register_framebuffer failed"); | |
1228 | unmap_video_memory(info); | |
1229 | fb_dealloc_cmap(&info->cmap); | |
1230 | return -EINVAL; | |
1231 | } | |
1232 | ||
1233 | mfbi->registered = 1; | |
1234 | printk(KERN_INFO "fb%d: %s fb device registered successfully.\n", | |
1235 | info->node, info->fix.id); | |
1236 | ||
1237 | return 0; | |
1238 | } | |
1239 | ||
05946bce | 1240 | static void uninstall_fb(struct fb_info *info) |
9b53a9e2 YS |
1241 | { |
1242 | struct mfb_info *mfbi = info->par; | |
1243 | ||
1244 | if (!mfbi->registered) | |
1245 | return; | |
1246 | ||
1247 | unregister_framebuffer(info); | |
1248 | unmap_video_memory(info); | |
1249 | if (&info->cmap) | |
1250 | fb_dealloc_cmap(&info->cmap); | |
1251 | ||
1252 | mfbi->registered = 0; | |
1253 | } | |
1254 | ||
1255 | static irqreturn_t fsl_diu_isr(int irq, void *dev_id) | |
1256 | { | |
1257 | struct diu *hw = dr.diu_reg; | |
1258 | unsigned int status = in_be32(&hw->int_status); | |
1259 | ||
1260 | if (status) { | |
1261 | /* This is the workaround for underrun */ | |
1262 | if (status & INT_UNDRUN) { | |
1263 | out_be32(&hw->diu_mode, 0); | |
1264 | pr_debug("Err: DIU occurs underrun!\n"); | |
1265 | udelay(1); | |
1266 | out_be32(&hw->diu_mode, 1); | |
1267 | } | |
1268 | #if defined(CONFIG_NOT_COHERENT_CACHE) | |
1269 | else if (status & INT_VSYNC) { | |
1270 | unsigned int i; | |
1271 | for (i = 0; i < coherence_data_size; | |
1272 | i += d_cache_line_size) | |
1273 | __asm__ __volatile__ ( | |
1274 | "dcbz 0, %[input]" | |
1275 | ::[input]"r"(&coherence_data[i])); | |
1276 | } | |
1277 | #endif | |
1278 | return IRQ_HANDLED; | |
1279 | } | |
1280 | return IRQ_NONE; | |
1281 | } | |
1282 | ||
1283 | static int request_irq_local(int irq) | |
1284 | { | |
1285 | unsigned long status, ints; | |
1286 | struct diu *hw; | |
1287 | int ret; | |
1288 | ||
1289 | hw = dr.diu_reg; | |
1290 | ||
1291 | /* Read to clear the status */ | |
1292 | status = in_be32(&hw->int_status); | |
1293 | ||
05946bce | 1294 | ret = request_irq(irq, fsl_diu_isr, 0, "diu", NULL); |
9b53a9e2 YS |
1295 | if (ret) |
1296 | pr_info("Request diu IRQ failed.\n"); | |
1297 | else { | |
1298 | ints = INT_PARERR | INT_LS_BF_VS; | |
1299 | #if !defined(CONFIG_NOT_COHERENT_CACHE) | |
1300 | ints |= INT_VSYNC; | |
1301 | #endif | |
1302 | if (dr.mode == MFB_MODE2 || dr.mode == MFB_MODE3) | |
1303 | ints |= INT_VSYNC_WB; | |
1304 | ||
1305 | /* Read to clear the status */ | |
1306 | status = in_be32(&hw->int_status); | |
1307 | out_be32(&hw->int_mask, ints); | |
1308 | } | |
1309 | return ret; | |
1310 | } | |
1311 | ||
1312 | static void free_irq_local(int irq) | |
1313 | { | |
1314 | struct diu *hw = dr.diu_reg; | |
1315 | ||
1316 | /* Disable all LCDC interrupt */ | |
1317 | out_be32(&hw->int_mask, 0x1f); | |
1318 | ||
05946bce | 1319 | free_irq(irq, NULL); |
9b53a9e2 YS |
1320 | } |
1321 | ||
1322 | #ifdef CONFIG_PM | |
1323 | /* | |
1324 | * Power management hooks. Note that we won't be called from IRQ context, | |
1325 | * unlike the blank functions above, so we may sleep. | |
1326 | */ | |
f969c567 | 1327 | static int fsl_diu_suspend(struct of_device *ofdev, pm_message_t state) |
9b53a9e2 YS |
1328 | { |
1329 | struct fsl_diu_data *machine_data; | |
1330 | ||
48948a3e | 1331 | machine_data = dev_get_drvdata(&ofdev->dev); |
9b53a9e2 YS |
1332 | disable_lcdc(machine_data->fsl_diu_info[0]); |
1333 | ||
1334 | return 0; | |
1335 | } | |
1336 | ||
f969c567 | 1337 | static int fsl_diu_resume(struct of_device *ofdev) |
9b53a9e2 YS |
1338 | { |
1339 | struct fsl_diu_data *machine_data; | |
1340 | ||
48948a3e | 1341 | machine_data = dev_get_drvdata(&ofdev->dev); |
9b53a9e2 YS |
1342 | enable_lcdc(machine_data->fsl_diu_info[0]); |
1343 | ||
1344 | return 0; | |
1345 | } | |
1346 | ||
1347 | #else | |
1348 | #define fsl_diu_suspend NULL | |
1349 | #define fsl_diu_resume NULL | |
1350 | #endif /* CONFIG_PM */ | |
1351 | ||
1352 | /* Align to 64-bit(8-byte), 32-byte, etc. */ | |
f3791889 AV |
1353 | static int allocate_buf(struct device *dev, struct diu_addr *buf, u32 size, |
1354 | u32 bytes_align) | |
9b53a9e2 YS |
1355 | { |
1356 | u32 offset, ssize; | |
1357 | u32 mask; | |
1358 | dma_addr_t paddr = 0; | |
1359 | ||
1360 | ssize = size + bytes_align; | |
f3791889 | 1361 | buf->vaddr = dma_alloc_coherent(dev, ssize, &paddr, GFP_DMA | |
05946bce | 1362 | __GFP_ZERO); |
9b53a9e2 YS |
1363 | if (!buf->vaddr) |
1364 | return -ENOMEM; | |
1365 | ||
1366 | buf->paddr = (__u32) paddr; | |
1367 | ||
1368 | mask = bytes_align - 1; | |
1369 | offset = (u32)buf->paddr & mask; | |
1370 | if (offset) { | |
1371 | buf->offset = bytes_align - offset; | |
1372 | buf->paddr = (u32)buf->paddr + offset; | |
1373 | } else | |
1374 | buf->offset = 0; | |
1375 | return 0; | |
1376 | } | |
1377 | ||
f3791889 AV |
1378 | static void free_buf(struct device *dev, struct diu_addr *buf, u32 size, |
1379 | u32 bytes_align) | |
9b53a9e2 | 1380 | { |
f3791889 | 1381 | dma_free_coherent(dev, size + bytes_align, |
9b53a9e2 YS |
1382 | buf->vaddr, (buf->paddr - buf->offset)); |
1383 | return; | |
1384 | } | |
1385 | ||
1386 | static ssize_t store_monitor(struct device *device, | |
1387 | struct device_attribute *attr, const char *buf, size_t count) | |
1388 | { | |
1389 | int old_monitor_port; | |
1390 | unsigned long val; | |
1391 | struct fsl_diu_data *machine_data = | |
1392 | container_of(attr, struct fsl_diu_data, dev_attr); | |
1393 | ||
1394 | if (strict_strtoul(buf, 10, &val)) | |
1395 | return 0; | |
1396 | ||
1397 | old_monitor_port = machine_data->monitor_port; | |
1398 | machine_data->monitor_port = diu_ops.set_sysfs_monitor_port(val); | |
1399 | ||
1400 | if (old_monitor_port != machine_data->monitor_port) { | |
1401 | /* All AOIs need adjust pixel format | |
1402 | * fsl_diu_set_par only change the pixsel format here | |
1403 | * unlikely to fail. */ | |
1404 | fsl_diu_set_par(machine_data->fsl_diu_info[0]); | |
1405 | fsl_diu_set_par(machine_data->fsl_diu_info[1]); | |
1406 | fsl_diu_set_par(machine_data->fsl_diu_info[2]); | |
1407 | fsl_diu_set_par(machine_data->fsl_diu_info[3]); | |
1408 | fsl_diu_set_par(machine_data->fsl_diu_info[4]); | |
1409 | } | |
1410 | return count; | |
1411 | } | |
1412 | ||
1413 | static ssize_t show_monitor(struct device *device, | |
1414 | struct device_attribute *attr, char *buf) | |
1415 | { | |
1416 | struct fsl_diu_data *machine_data = | |
1417 | container_of(attr, struct fsl_diu_data, dev_attr); | |
1418 | return diu_ops.show_monitor_port(machine_data->monitor_port, buf); | |
1419 | } | |
1420 | ||
05946bce | 1421 | static int __devinit fsl_diu_probe(struct of_device *ofdev, |
9b53a9e2 YS |
1422 | const struct of_device_id *match) |
1423 | { | |
1424 | struct device_node *np = ofdev->node; | |
1425 | struct mfb_info *mfbi; | |
1426 | phys_addr_t dummy_ad_addr; | |
1427 | int ret, i, error = 0; | |
1428 | struct resource res; | |
1429 | struct fsl_diu_data *machine_data; | |
1430 | ||
1431 | machine_data = kzalloc(sizeof(struct fsl_diu_data), GFP_KERNEL); | |
1432 | if (!machine_data) | |
1433 | return -ENOMEM; | |
1434 | ||
1435 | for (i = 0; i < ARRAY_SIZE(machine_data->fsl_diu_info); i++) { | |
1436 | machine_data->fsl_diu_info[i] = | |
1437 | framebuffer_alloc(sizeof(struct mfb_info), &ofdev->dev); | |
1438 | if (!machine_data->fsl_diu_info[i]) { | |
1439 | dev_err(&ofdev->dev, "cannot allocate memory\n"); | |
1440 | ret = -ENOMEM; | |
1441 | goto error2; | |
1442 | } | |
1443 | mfbi = machine_data->fsl_diu_info[i]->par; | |
1444 | memcpy(mfbi, &mfb_template[i], sizeof(struct mfb_info)); | |
1445 | mfbi->parent = machine_data; | |
1446 | } | |
1447 | ||
1448 | ret = of_address_to_resource(np, 0, &res); | |
1449 | if (ret) { | |
1450 | dev_err(&ofdev->dev, "could not obtain DIU address\n"); | |
1451 | goto error; | |
1452 | } | |
1453 | if (!res.start) { | |
1454 | dev_err(&ofdev->dev, "invalid DIU address\n"); | |
1455 | goto error; | |
1456 | } | |
1457 | dev_dbg(&ofdev->dev, "%s, res.start: 0x%08x\n", __func__, res.start); | |
1458 | ||
1459 | dr.diu_reg = ioremap(res.start, sizeof(struct diu)); | |
1460 | if (!dr.diu_reg) { | |
1461 | dev_err(&ofdev->dev, "Err: can't map DIU registers!\n"); | |
1462 | ret = -EFAULT; | |
1463 | goto error2; | |
1464 | } | |
1465 | ||
1466 | out_be32(&dr.diu_reg->diu_mode, 0); /* disable DIU anyway*/ | |
1467 | ||
1468 | /* Get the IRQ of the DIU */ | |
1469 | machine_data->irq = irq_of_parse_and_map(np, 0); | |
1470 | ||
1471 | if (!machine_data->irq) { | |
1472 | dev_err(&ofdev->dev, "could not get DIU IRQ\n"); | |
1473 | ret = -EINVAL; | |
1474 | goto error; | |
1475 | } | |
1476 | machine_data->monitor_port = monitor_port; | |
1477 | ||
1478 | /* Area descriptor memory pool aligns to 64-bit boundary */ | |
f3791889 AV |
1479 | if (allocate_buf(&ofdev->dev, &pool.ad, |
1480 | sizeof(struct diu_ad) * FSL_AOI_NUM, 8)) | |
9b53a9e2 YS |
1481 | return -ENOMEM; |
1482 | ||
1483 | /* Get memory for Gamma Table - 32-byte aligned memory */ | |
f3791889 | 1484 | if (allocate_buf(&ofdev->dev, &pool.gamma, 768, 32)) { |
9b53a9e2 YS |
1485 | ret = -ENOMEM; |
1486 | goto error; | |
1487 | } | |
1488 | ||
1489 | /* For performance, cursor bitmap buffer aligns to 32-byte boundary */ | |
f3791889 AV |
1490 | if (allocate_buf(&ofdev->dev, &pool.cursor, MAX_CURS * MAX_CURS * 2, |
1491 | 32)) { | |
9b53a9e2 YS |
1492 | ret = -ENOMEM; |
1493 | goto error; | |
1494 | } | |
1495 | ||
1496 | i = ARRAY_SIZE(machine_data->fsl_diu_info); | |
1497 | machine_data->dummy_ad = (struct diu_ad *) | |
1498 | ((u32)pool.ad.vaddr + pool.ad.offset) + i; | |
1499 | machine_data->dummy_ad->paddr = pool.ad.paddr + | |
1500 | i * sizeof(struct diu_ad); | |
1501 | machine_data->dummy_aoi_virt = fsl_diu_alloc(64, &dummy_ad_addr); | |
1502 | if (!machine_data->dummy_aoi_virt) { | |
1503 | ret = -ENOMEM; | |
1504 | goto error; | |
1505 | } | |
1506 | machine_data->dummy_ad->addr = cpu_to_le32(dummy_ad_addr); | |
1507 | machine_data->dummy_ad->pix_fmt = 0x88882317; | |
1508 | machine_data->dummy_ad->src_size_g_alpha = cpu_to_le32((4 << 12) | 4); | |
1509 | machine_data->dummy_ad->aoi_size = cpu_to_le32((4 << 16) | 2); | |
1510 | machine_data->dummy_ad->offset_xyi = 0; | |
1511 | machine_data->dummy_ad->offset_xyd = 0; | |
1512 | machine_data->dummy_ad->next_ad = 0; | |
1513 | ||
1514 | out_be32(&dr.diu_reg->desc[0], machine_data->dummy_ad->paddr); | |
1515 | out_be32(&dr.diu_reg->desc[1], machine_data->dummy_ad->paddr); | |
1516 | out_be32(&dr.diu_reg->desc[2], machine_data->dummy_ad->paddr); | |
1517 | ||
1518 | for (i = 0; i < ARRAY_SIZE(machine_data->fsl_diu_info); i++) { | |
1519 | machine_data->fsl_diu_info[i]->fix.smem_start = 0; | |
1520 | mfbi = machine_data->fsl_diu_info[i]->par; | |
1521 | mfbi->ad = (struct diu_ad *)((u32)pool.ad.vaddr | |
1522 | + pool.ad.offset) + i; | |
1523 | mfbi->ad->paddr = pool.ad.paddr + i * sizeof(struct diu_ad); | |
1524 | ret = install_fb(machine_data->fsl_diu_info[i]); | |
1525 | if (ret) { | |
1526 | dev_err(&ofdev->dev, | |
1527 | "Failed to register framebuffer %d\n", | |
1528 | i); | |
1529 | goto error; | |
1530 | } | |
1531 | } | |
1532 | ||
1533 | if (request_irq_local(machine_data->irq)) { | |
1534 | dev_err(machine_data->fsl_diu_info[0]->dev, | |
1535 | "could not request irq for diu."); | |
1536 | goto error; | |
1537 | } | |
1538 | ||
1539 | machine_data->dev_attr.attr.name = "monitor"; | |
1540 | machine_data->dev_attr.attr.mode = S_IRUGO|S_IWUSR; | |
1541 | machine_data->dev_attr.show = show_monitor; | |
1542 | machine_data->dev_attr.store = store_monitor; | |
1543 | error = device_create_file(machine_data->fsl_diu_info[0]->dev, | |
1544 | &machine_data->dev_attr); | |
1545 | if (error) { | |
1546 | dev_err(machine_data->fsl_diu_info[0]->dev, | |
1547 | "could not create sysfs %s file\n", | |
1548 | machine_data->dev_attr.attr.name); | |
1549 | } | |
1550 | ||
1551 | dev_set_drvdata(&ofdev->dev, machine_data); | |
1552 | return 0; | |
1553 | ||
1554 | error: | |
1555 | for (i = ARRAY_SIZE(machine_data->fsl_diu_info); | |
1556 | i > 0; i--) | |
1557 | uninstall_fb(machine_data->fsl_diu_info[i - 1]); | |
1558 | if (pool.ad.vaddr) | |
f3791889 AV |
1559 | free_buf(&ofdev->dev, &pool.ad, |
1560 | sizeof(struct diu_ad) * FSL_AOI_NUM, 8); | |
9b53a9e2 | 1561 | if (pool.gamma.vaddr) |
f3791889 | 1562 | free_buf(&ofdev->dev, &pool.gamma, 768, 32); |
9b53a9e2 | 1563 | if (pool.cursor.vaddr) |
f3791889 AV |
1564 | free_buf(&ofdev->dev, &pool.cursor, MAX_CURS * MAX_CURS * 2, |
1565 | 32); | |
9b53a9e2 YS |
1566 | if (machine_data->dummy_aoi_virt) |
1567 | fsl_diu_free(machine_data->dummy_aoi_virt, 64); | |
1568 | iounmap(dr.diu_reg); | |
1569 | ||
1570 | error2: | |
1571 | for (i = 0; i < ARRAY_SIZE(machine_data->fsl_diu_info); i++) | |
1572 | if (machine_data->fsl_diu_info[i]) | |
1573 | framebuffer_release(machine_data->fsl_diu_info[i]); | |
1574 | kfree(machine_data); | |
1575 | ||
1576 | return ret; | |
1577 | } | |
1578 | ||
1579 | ||
1580 | static int fsl_diu_remove(struct of_device *ofdev) | |
1581 | { | |
1582 | struct fsl_diu_data *machine_data; | |
1583 | int i; | |
1584 | ||
1585 | machine_data = dev_get_drvdata(&ofdev->dev); | |
1586 | disable_lcdc(machine_data->fsl_diu_info[0]); | |
1587 | free_irq_local(machine_data->irq); | |
1588 | for (i = ARRAY_SIZE(machine_data->fsl_diu_info); i > 0; i--) | |
1589 | uninstall_fb(machine_data->fsl_diu_info[i - 1]); | |
1590 | if (pool.ad.vaddr) | |
f3791889 AV |
1591 | free_buf(&ofdev->dev, &pool.ad, |
1592 | sizeof(struct diu_ad) * FSL_AOI_NUM, 8); | |
9b53a9e2 | 1593 | if (pool.gamma.vaddr) |
f3791889 | 1594 | free_buf(&ofdev->dev, &pool.gamma, 768, 32); |
9b53a9e2 | 1595 | if (pool.cursor.vaddr) |
f3791889 AV |
1596 | free_buf(&ofdev->dev, &pool.cursor, MAX_CURS * MAX_CURS * 2, |
1597 | 32); | |
9b53a9e2 YS |
1598 | if (machine_data->dummy_aoi_virt) |
1599 | fsl_diu_free(machine_data->dummy_aoi_virt, 64); | |
1600 | iounmap(dr.diu_reg); | |
1601 | for (i = 0; i < ARRAY_SIZE(machine_data->fsl_diu_info); i++) | |
1602 | if (machine_data->fsl_diu_info[i]) | |
1603 | framebuffer_release(machine_data->fsl_diu_info[i]); | |
1604 | kfree(machine_data); | |
1605 | ||
1606 | return 0; | |
1607 | } | |
1608 | ||
1609 | #ifndef MODULE | |
1610 | static int __init fsl_diu_setup(char *options) | |
1611 | { | |
1612 | char *opt; | |
1613 | unsigned long val; | |
1614 | ||
1615 | if (!options || !*options) | |
1616 | return 0; | |
1617 | ||
1618 | while ((opt = strsep(&options, ",")) != NULL) { | |
1619 | if (!*opt) | |
1620 | continue; | |
1621 | if (!strncmp(opt, "monitor=", 8)) { | |
1622 | if (!strict_strtoul(opt + 8, 10, &val) && (val <= 2)) | |
1623 | monitor_port = val; | |
1624 | } else if (!strncmp(opt, "bpp=", 4)) { | |
1625 | if (!strict_strtoul(opt + 4, 10, &val)) | |
1626 | default_bpp = val; | |
1627 | } else | |
1628 | fb_mode = opt; | |
1629 | } | |
1630 | ||
1631 | return 0; | |
1632 | } | |
1633 | #endif | |
1634 | ||
1635 | static struct of_device_id fsl_diu_match[] = { | |
d24720a4 AG |
1636 | #ifdef CONFIG_PPC_MPC512x |
1637 | { | |
1638 | .compatible = "fsl,mpc5121-diu", | |
1639 | }, | |
1640 | #endif | |
9b53a9e2 YS |
1641 | { |
1642 | .compatible = "fsl,diu", | |
1643 | }, | |
1644 | {} | |
1645 | }; | |
1646 | MODULE_DEVICE_TABLE(of, fsl_diu_match); | |
1647 | ||
1648 | static struct of_platform_driver fsl_diu_driver = { | |
1649 | .owner = THIS_MODULE, | |
1650 | .name = "fsl_diu", | |
1651 | .match_table = fsl_diu_match, | |
1652 | .probe = fsl_diu_probe, | |
1653 | .remove = fsl_diu_remove, | |
1654 | .suspend = fsl_diu_suspend, | |
1655 | .resume = fsl_diu_resume, | |
1656 | }; | |
1657 | ||
1658 | static int __init fsl_diu_init(void) | |
1659 | { | |
1660 | #ifdef CONFIG_NOT_COHERENT_CACHE | |
1661 | struct device_node *np; | |
1662 | const u32 *prop; | |
1663 | #endif | |
1664 | int ret; | |
1665 | #ifndef MODULE | |
1666 | char *option; | |
1667 | ||
1668 | /* | |
1669 | * For kernel boot options (in 'video=xxxfb:<options>' format) | |
1670 | */ | |
1671 | if (fb_get_options("fslfb", &option)) | |
1672 | return -ENODEV; | |
1673 | fsl_diu_setup(option); | |
1674 | #endif | |
1675 | printk(KERN_INFO "Freescale DIU driver\n"); | |
1676 | ||
1677 | #ifdef CONFIG_NOT_COHERENT_CACHE | |
1678 | np = of_find_node_by_type(NULL, "cpu"); | |
1679 | if (!np) { | |
1680 | printk(KERN_ERR "Err: can't find device node 'cpu'\n"); | |
1681 | return -ENODEV; | |
1682 | } | |
1683 | ||
1684 | prop = of_get_property(np, "d-cache-size", NULL); | |
5394ba0f JL |
1685 | if (prop == NULL) { |
1686 | of_node_put(np); | |
9b53a9e2 | 1687 | return -ENODEV; |
5394ba0f | 1688 | } |
9b53a9e2 YS |
1689 | |
1690 | /* Freescale PLRU requires 13/8 times the cache size to do a proper | |
1691 | displacement flush | |
1692 | */ | |
1693 | coherence_data_size = *prop * 13; | |
1694 | coherence_data_size /= 8; | |
1695 | ||
1696 | prop = of_get_property(np, "d-cache-line-size", NULL); | |
5394ba0f JL |
1697 | if (prop == NULL) { |
1698 | of_node_put(np); | |
9b53a9e2 | 1699 | return -ENODEV; |
5394ba0f | 1700 | } |
9b53a9e2 YS |
1701 | d_cache_line_size = *prop; |
1702 | ||
1703 | of_node_put(np); | |
1704 | coherence_data = vmalloc(coherence_data_size); | |
1705 | if (!coherence_data) | |
1706 | return -ENOMEM; | |
1707 | #endif | |
1708 | ret = of_register_platform_driver(&fsl_diu_driver); | |
1709 | if (ret) { | |
1710 | printk(KERN_ERR | |
1711 | "fsl-diu: failed to register platform driver\n"); | |
1712 | #if defined(CONFIG_NOT_COHERENT_CACHE) | |
1713 | vfree(coherence_data); | |
1714 | #endif | |
1715 | iounmap(dr.diu_reg); | |
1716 | } | |
1717 | return ret; | |
1718 | } | |
1719 | ||
1720 | static void __exit fsl_diu_exit(void) | |
1721 | { | |
1722 | of_unregister_platform_driver(&fsl_diu_driver); | |
1723 | #if defined(CONFIG_NOT_COHERENT_CACHE) | |
1724 | vfree(coherence_data); | |
1725 | #endif | |
1726 | } | |
1727 | ||
1728 | module_init(fsl_diu_init); | |
1729 | module_exit(fsl_diu_exit); | |
1730 | ||
1731 | MODULE_AUTHOR("York Sun <yorksun@freescale.com>"); | |
1732 | MODULE_DESCRIPTION("Freescale DIU framebuffer driver"); | |
1733 | MODULE_LICENSE("GPL"); | |
1734 | ||
1735 | module_param_named(mode, fb_mode, charp, 0); | |
1736 | MODULE_PARM_DESC(mode, | |
1737 | "Specify resolution as \"<xres>x<yres>[-<bpp>][@<refresh>]\" "); | |
1738 | module_param_named(bpp, default_bpp, ulong, 0); | |
1739 | MODULE_PARM_DESC(bpp, "Specify bit-per-pixel if not specified mode"); | |
1740 | module_param_named(monitor, monitor_port, int, 0); | |
1741 | MODULE_PARM_DESC(monitor, | |
1742 | "Specify the monitor port (0, 1 or 2) if supported by the platform"); | |
1743 |