Commit | Line | Data |
---|---|---|
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 | ||
9b53a9e2 | 34 | #include <sysdev/fsl_soc.h> |
0814a979 | 35 | #include <linux/fsl-diu-fb.h> |
8b856f04 | 36 | #include "edid.h" |
9b53a9e2 YS |
37 | |
38 | /* | |
39 | * These parameters give default parameters | |
40 | * for video output 1024x768, | |
41 | * FIXME - change timing to proper amounts | |
42 | * hsync 31.5kHz, vsync 60Hz | |
43 | */ | |
44 | static struct fb_videomode __devinitdata fsl_diu_default_mode = { | |
45 | .refresh = 60, | |
46 | .xres = 1024, | |
47 | .yres = 768, | |
48 | .pixclock = 15385, | |
49 | .left_margin = 160, | |
50 | .right_margin = 24, | |
51 | .upper_margin = 29, | |
52 | .lower_margin = 3, | |
53 | .hsync_len = 136, | |
54 | .vsync_len = 6, | |
55 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, | |
56 | .vmode = FB_VMODE_NONINTERLACED | |
57 | }; | |
58 | ||
59 | static struct fb_videomode __devinitdata fsl_diu_mode_db[] = { | |
60 | { | |
61 | .name = "1024x768-60", | |
62 | .refresh = 60, | |
63 | .xres = 1024, | |
64 | .yres = 768, | |
65 | .pixclock = 15385, | |
66 | .left_margin = 160, | |
67 | .right_margin = 24, | |
68 | .upper_margin = 29, | |
69 | .lower_margin = 3, | |
70 | .hsync_len = 136, | |
71 | .vsync_len = 6, | |
72 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, | |
73 | .vmode = FB_VMODE_NONINTERLACED | |
74 | }, | |
75 | { | |
76 | .name = "1024x768-70", | |
77 | .refresh = 70, | |
78 | .xres = 1024, | |
79 | .yres = 768, | |
80 | .pixclock = 16886, | |
81 | .left_margin = 3, | |
82 | .right_margin = 3, | |
83 | .upper_margin = 2, | |
84 | .lower_margin = 2, | |
85 | .hsync_len = 40, | |
86 | .vsync_len = 18, | |
87 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, | |
88 | .vmode = FB_VMODE_NONINTERLACED | |
89 | }, | |
90 | { | |
91 | .name = "1024x768-75", | |
92 | .refresh = 75, | |
93 | .xres = 1024, | |
94 | .yres = 768, | |
95 | .pixclock = 15009, | |
96 | .left_margin = 3, | |
97 | .right_margin = 3, | |
98 | .upper_margin = 2, | |
99 | .lower_margin = 2, | |
100 | .hsync_len = 80, | |
101 | .vsync_len = 32, | |
102 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, | |
103 | .vmode = FB_VMODE_NONINTERLACED | |
104 | }, | |
105 | { | |
106 | .name = "1280x1024-60", | |
107 | .refresh = 60, | |
108 | .xres = 1280, | |
109 | .yres = 1024, | |
110 | .pixclock = 9375, | |
111 | .left_margin = 38, | |
112 | .right_margin = 128, | |
113 | .upper_margin = 2, | |
114 | .lower_margin = 7, | |
115 | .hsync_len = 216, | |
116 | .vsync_len = 37, | |
117 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, | |
118 | .vmode = FB_VMODE_NONINTERLACED | |
119 | }, | |
120 | { | |
121 | .name = "1280x1024-70", | |
122 | .refresh = 70, | |
123 | .xres = 1280, | |
124 | .yres = 1024, | |
125 | .pixclock = 9380, | |
126 | .left_margin = 6, | |
127 | .right_margin = 6, | |
128 | .upper_margin = 4, | |
129 | .lower_margin = 4, | |
130 | .hsync_len = 60, | |
131 | .vsync_len = 94, | |
132 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, | |
133 | .vmode = FB_VMODE_NONINTERLACED | |
134 | }, | |
135 | { | |
136 | .name = "1280x1024-75", | |
137 | .refresh = 75, | |
138 | .xres = 1280, | |
139 | .yres = 1024, | |
140 | .pixclock = 9380, | |
141 | .left_margin = 6, | |
142 | .right_margin = 6, | |
143 | .upper_margin = 4, | |
144 | .lower_margin = 4, | |
145 | .hsync_len = 60, | |
146 | .vsync_len = 15, | |
147 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, | |
148 | .vmode = FB_VMODE_NONINTERLACED | |
149 | }, | |
150 | { | |
151 | .name = "320x240", /* for AOI only */ | |
152 | .refresh = 60, | |
153 | .xres = 320, | |
154 | .yres = 240, | |
155 | .pixclock = 15385, | |
156 | .left_margin = 0, | |
157 | .right_margin = 0, | |
158 | .upper_margin = 0, | |
159 | .lower_margin = 0, | |
160 | .hsync_len = 0, | |
161 | .vsync_len = 0, | |
162 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, | |
163 | .vmode = FB_VMODE_NONINTERLACED | |
164 | }, | |
165 | { | |
166 | .name = "1280x480-60", | |
167 | .refresh = 60, | |
168 | .xres = 1280, | |
169 | .yres = 480, | |
170 | .pixclock = 18939, | |
171 | .left_margin = 353, | |
172 | .right_margin = 47, | |
173 | .upper_margin = 39, | |
174 | .lower_margin = 4, | |
175 | .hsync_len = 8, | |
176 | .vsync_len = 2, | |
177 | .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, | |
178 | .vmode = FB_VMODE_NONINTERLACED | |
179 | }, | |
180 | }; | |
181 | ||
182 | static char *fb_mode = "1024x768-32@60"; | |
183 | static unsigned long default_bpp = 32; | |
7653aaab TT |
184 | static enum fsl_diu_monitor_port monitor_port; |
185 | static char *monitor_string; | |
9b53a9e2 YS |
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; | |
7653aaab | 203 | enum fsl_diu_monitor_port monitor_port; |
9b53a9e2 YS |
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; | |
8b856f04 | 220 | u8 *edid_data; |
9b53a9e2 YS |
221 | }; |
222 | ||
223 | ||
224 | static struct mfb_info mfb_template[] = { | |
225 | { /* AOI 0 for plane 0 */ | |
4a85dc8b TT |
226 | .index = 0, |
227 | .type = MFB_TYPE_OUTPUT, | |
228 | .id = "Panel0", | |
229 | .registered = 0, | |
230 | .count = 0, | |
231 | .x_aoi_d = 0, | |
232 | .y_aoi_d = 0, | |
9b53a9e2 YS |
233 | }, |
234 | { /* AOI 0 for plane 1 */ | |
4a85dc8b TT |
235 | .index = 1, |
236 | .type = MFB_TYPE_OUTPUT, | |
237 | .id = "Panel1 AOI0", | |
238 | .registered = 0, | |
239 | .g_alpha = 0xff, | |
240 | .count = 0, | |
241 | .x_aoi_d = 0, | |
242 | .y_aoi_d = 0, | |
9b53a9e2 YS |
243 | }, |
244 | { /* AOI 1 for plane 1 */ | |
4a85dc8b TT |
245 | .index = 2, |
246 | .type = MFB_TYPE_OUTPUT, | |
247 | .id = "Panel1 AOI1", | |
248 | .registered = 0, | |
249 | .g_alpha = 0xff, | |
250 | .count = 0, | |
251 | .x_aoi_d = 0, | |
252 | .y_aoi_d = 480, | |
9b53a9e2 YS |
253 | }, |
254 | { /* AOI 0 for plane 2 */ | |
4a85dc8b TT |
255 | .index = 3, |
256 | .type = MFB_TYPE_OUTPUT, | |
257 | .id = "Panel2 AOI0", | |
258 | .registered = 0, | |
259 | .g_alpha = 0xff, | |
260 | .count = 0, | |
261 | .x_aoi_d = 640, | |
262 | .y_aoi_d = 0, | |
9b53a9e2 YS |
263 | }, |
264 | { /* AOI 1 for plane 2 */ | |
4a85dc8b TT |
265 | .index = 4, |
266 | .type = MFB_TYPE_OUTPUT, | |
267 | .id = "Panel2 AOI1", | |
268 | .registered = 0, | |
269 | .g_alpha = 0xff, | |
270 | .count = 0, | |
271 | .x_aoi_d = 640, | |
272 | .y_aoi_d = 480, | |
9b53a9e2 YS |
273 | }, |
274 | }; | |
275 | ||
276 | static struct diu_hw dr = { | |
277 | .mode = MFB_MODE1, | |
278 | .reg_lock = __SPIN_LOCK_UNLOCKED(diu_hw.reg_lock), | |
279 | }; | |
280 | ||
281 | static struct diu_pool pool; | |
282 | ||
7653aaab TT |
283 | /** |
284 | * fsl_diu_name_to_port - convert a port name to a monitor port enum | |
285 | * | |
286 | * Takes the name of a monitor port ("dvi", "lvds", or "dlvds") and returns | |
287 | * the enum fsl_diu_monitor_port that corresponds to that string. | |
288 | * | |
289 | * For compatibility with older versions, a number ("0", "1", or "2") is also | |
290 | * supported. | |
291 | * | |
292 | * If the string is unknown, DVI is assumed. | |
293 | * | |
294 | * If the particular port is not supported by the platform, another port | |
295 | * (platform-specific) is chosen instead. | |
296 | */ | |
297 | static enum fsl_diu_monitor_port fsl_diu_name_to_port(const char *s) | |
298 | { | |
299 | enum fsl_diu_monitor_port port = FSL_DIU_PORT_DVI; | |
300 | unsigned long val; | |
301 | ||
302 | if (s) { | |
303 | if (!strict_strtoul(s, 10, &val) && (val <= 2)) | |
304 | port = (enum fsl_diu_monitor_port) val; | |
305 | else if (strncmp(s, "lvds", 4) == 0) | |
306 | port = FSL_DIU_PORT_LVDS; | |
307 | else if (strncmp(s, "dlvds", 5) == 0) | |
308 | port = FSL_DIU_PORT_DLVDS; | |
309 | } | |
310 | ||
311 | return diu_ops.valid_monitor_port(port); | |
312 | } | |
313 | ||
6b51d51a TT |
314 | /** |
315 | * fsl_diu_alloc - allocate memory for the DIU | |
316 | * @size: number of bytes to allocate | |
317 | * @param: returned physical address of memory | |
318 | * | |
319 | * This function allocates a physically-contiguous block of memory. | |
9b53a9e2 | 320 | */ |
6b51d51a | 321 | static void *fsl_diu_alloc(size_t size, phys_addr_t *phys) |
9b53a9e2 YS |
322 | { |
323 | void *virt; | |
324 | ||
6b51d51a | 325 | virt = alloc_pages_exact(size, GFP_DMA | __GFP_ZERO); |
154152ae | 326 | if (virt) |
9b53a9e2 | 327 | *phys = virt_to_phys(virt); |
9b53a9e2 | 328 | |
9b53a9e2 YS |
329 | return virt; |
330 | } | |
331 | ||
6b51d51a TT |
332 | /** |
333 | * fsl_diu_free - release DIU memory | |
334 | * @virt: pointer returned by fsl_diu_alloc() | |
335 | * @size: number of bytes allocated by fsl_diu_alloc() | |
336 | * | |
337 | * This function releases memory allocated by fsl_diu_alloc(). | |
338 | */ | |
339 | static void fsl_diu_free(void *virt, size_t size) | |
9b53a9e2 | 340 | { |
6b51d51a TT |
341 | if (virt && size) |
342 | free_pages_exact(virt, size); | |
9b53a9e2 YS |
343 | } |
344 | ||
0d9dab39 AG |
345 | /* |
346 | * Workaround for failed writing desc register of planes. | |
347 | * Needed with MPC5121 DIU rev 2.0 silicon. | |
348 | */ | |
349 | void wr_reg_wa(u32 *reg, u32 val) | |
350 | { | |
351 | do { | |
352 | out_be32(reg, val); | |
353 | } while (in_be32(reg) != val); | |
354 | } | |
355 | ||
9b53a9e2 YS |
356 | static int fsl_diu_enable_panel(struct fb_info *info) |
357 | { | |
358 | struct mfb_info *pmfbi, *cmfbi, *mfbi = info->par; | |
359 | struct diu *hw = dr.diu_reg; | |
360 | struct diu_ad *ad = mfbi->ad; | |
361 | struct fsl_diu_data *machine_data = mfbi->parent; | |
362 | int res = 0; | |
363 | ||
9b53a9e2 YS |
364 | if (mfbi->type != MFB_TYPE_OFF) { |
365 | switch (mfbi->index) { | |
366 | case 0: /* plane 0 */ | |
367 | if (hw->desc[0] != ad->paddr) | |
0d9dab39 | 368 | wr_reg_wa(&hw->desc[0], ad->paddr); |
9b53a9e2 YS |
369 | break; |
370 | case 1: /* plane 1 AOI 0 */ | |
371 | cmfbi = machine_data->fsl_diu_info[2]->par; | |
372 | if (hw->desc[1] != ad->paddr) { /* AOI0 closed */ | |
373 | if (cmfbi->count > 0) /* AOI1 open */ | |
374 | ad->next_ad = | |
375 | cpu_to_le32(cmfbi->ad->paddr); | |
376 | else | |
377 | ad->next_ad = 0; | |
0d9dab39 | 378 | wr_reg_wa(&hw->desc[1], ad->paddr); |
9b53a9e2 YS |
379 | } |
380 | break; | |
381 | case 3: /* plane 2 AOI 0 */ | |
382 | cmfbi = machine_data->fsl_diu_info[4]->par; | |
383 | if (hw->desc[2] != ad->paddr) { /* AOI0 closed */ | |
384 | if (cmfbi->count > 0) /* AOI1 open */ | |
385 | ad->next_ad = | |
386 | cpu_to_le32(cmfbi->ad->paddr); | |
387 | else | |
388 | ad->next_ad = 0; | |
0d9dab39 | 389 | wr_reg_wa(&hw->desc[2], ad->paddr); |
9b53a9e2 YS |
390 | } |
391 | break; | |
392 | case 2: /* plane 1 AOI 1 */ | |
393 | pmfbi = machine_data->fsl_diu_info[1]->par; | |
394 | ad->next_ad = 0; | |
395 | if (hw->desc[1] == machine_data->dummy_ad->paddr) | |
0d9dab39 | 396 | wr_reg_wa(&hw->desc[1], ad->paddr); |
9b53a9e2 YS |
397 | else /* AOI0 open */ |
398 | pmfbi->ad->next_ad = cpu_to_le32(ad->paddr); | |
399 | break; | |
400 | case 4: /* plane 2 AOI 1 */ | |
401 | pmfbi = machine_data->fsl_diu_info[3]->par; | |
402 | ad->next_ad = 0; | |
403 | if (hw->desc[2] == machine_data->dummy_ad->paddr) | |
0d9dab39 | 404 | wr_reg_wa(&hw->desc[2], ad->paddr); |
9b53a9e2 YS |
405 | else /* AOI0 was open */ |
406 | pmfbi->ad->next_ad = cpu_to_le32(ad->paddr); | |
407 | break; | |
408 | default: | |
409 | res = -EINVAL; | |
410 | break; | |
411 | } | |
412 | } else | |
413 | res = -EINVAL; | |
414 | return res; | |
415 | } | |
416 | ||
417 | static int fsl_diu_disable_panel(struct fb_info *info) | |
418 | { | |
419 | struct mfb_info *pmfbi, *cmfbi, *mfbi = info->par; | |
420 | struct diu *hw = dr.diu_reg; | |
421 | struct diu_ad *ad = mfbi->ad; | |
422 | struct fsl_diu_data *machine_data = mfbi->parent; | |
423 | int res = 0; | |
424 | ||
425 | switch (mfbi->index) { | |
426 | case 0: /* plane 0 */ | |
427 | if (hw->desc[0] != machine_data->dummy_ad->paddr) | |
0d9dab39 | 428 | wr_reg_wa(&hw->desc[0], machine_data->dummy_ad->paddr); |
9b53a9e2 YS |
429 | break; |
430 | case 1: /* plane 1 AOI 0 */ | |
431 | cmfbi = machine_data->fsl_diu_info[2]->par; | |
432 | if (cmfbi->count > 0) /* AOI1 is open */ | |
0d9dab39 | 433 | wr_reg_wa(&hw->desc[1], cmfbi->ad->paddr); |
9b53a9e2 YS |
434 | /* move AOI1 to the first */ |
435 | else /* AOI1 was closed */ | |
0d9dab39 | 436 | wr_reg_wa(&hw->desc[1], machine_data->dummy_ad->paddr); |
9b53a9e2 YS |
437 | /* close AOI 0 */ |
438 | break; | |
439 | case 3: /* plane 2 AOI 0 */ | |
440 | cmfbi = machine_data->fsl_diu_info[4]->par; | |
441 | if (cmfbi->count > 0) /* AOI1 is open */ | |
0d9dab39 | 442 | wr_reg_wa(&hw->desc[2], cmfbi->ad->paddr); |
9b53a9e2 YS |
443 | /* move AOI1 to the first */ |
444 | else /* AOI1 was closed */ | |
0d9dab39 | 445 | wr_reg_wa(&hw->desc[2], machine_data->dummy_ad->paddr); |
9b53a9e2 YS |
446 | /* close AOI 0 */ |
447 | break; | |
448 | case 2: /* plane 1 AOI 1 */ | |
449 | pmfbi = machine_data->fsl_diu_info[1]->par; | |
450 | if (hw->desc[1] != ad->paddr) { | |
451 | /* AOI1 is not the first in the chain */ | |
452 | if (pmfbi->count > 0) | |
453 | /* AOI0 is open, must be the first */ | |
454 | pmfbi->ad->next_ad = 0; | |
455 | } else /* AOI1 is the first in the chain */ | |
0d9dab39 | 456 | wr_reg_wa(&hw->desc[1], machine_data->dummy_ad->paddr); |
9b53a9e2 YS |
457 | /* close AOI 1 */ |
458 | break; | |
459 | case 4: /* plane 2 AOI 1 */ | |
460 | pmfbi = machine_data->fsl_diu_info[3]->par; | |
461 | if (hw->desc[2] != ad->paddr) { | |
462 | /* AOI1 is not the first in the chain */ | |
463 | if (pmfbi->count > 0) | |
464 | /* AOI0 is open, must be the first */ | |
465 | pmfbi->ad->next_ad = 0; | |
466 | } else /* AOI1 is the first in the chain */ | |
0d9dab39 | 467 | wr_reg_wa(&hw->desc[2], machine_data->dummy_ad->paddr); |
9b53a9e2 YS |
468 | /* close AOI 1 */ |
469 | break; | |
470 | default: | |
471 | res = -EINVAL; | |
472 | break; | |
473 | } | |
474 | ||
475 | return res; | |
476 | } | |
477 | ||
478 | static void enable_lcdc(struct fb_info *info) | |
479 | { | |
480 | struct diu *hw = dr.diu_reg; | |
481 | struct mfb_info *mfbi = info->par; | |
482 | struct fsl_diu_data *machine_data = mfbi->parent; | |
483 | ||
484 | if (!machine_data->fb_enabled) { | |
485 | out_be32(&hw->diu_mode, dr.mode); | |
486 | machine_data->fb_enabled++; | |
487 | } | |
488 | } | |
489 | ||
490 | static void disable_lcdc(struct fb_info *info) | |
491 | { | |
492 | struct diu *hw = dr.diu_reg; | |
493 | struct mfb_info *mfbi = info->par; | |
494 | struct fsl_diu_data *machine_data = mfbi->parent; | |
495 | ||
496 | if (machine_data->fb_enabled) { | |
497 | out_be32(&hw->diu_mode, 0); | |
498 | machine_data->fb_enabled = 0; | |
499 | } | |
500 | } | |
501 | ||
502 | static void adjust_aoi_size_position(struct fb_var_screeninfo *var, | |
503 | struct fb_info *info) | |
504 | { | |
505 | struct mfb_info *lower_aoi_mfbi, *upper_aoi_mfbi, *mfbi = info->par; | |
506 | struct fsl_diu_data *machine_data = mfbi->parent; | |
507 | int available_height, upper_aoi_bottom, index = mfbi->index; | |
508 | int lower_aoi_is_open, upper_aoi_is_open; | |
509 | __u32 base_plane_width, base_plane_height, upper_aoi_height; | |
510 | ||
511 | base_plane_width = machine_data->fsl_diu_info[0]->var.xres; | |
512 | base_plane_height = machine_data->fsl_diu_info[0]->var.yres; | |
513 | ||
fdfaa483 YS |
514 | if (mfbi->x_aoi_d < 0) |
515 | mfbi->x_aoi_d = 0; | |
516 | if (mfbi->y_aoi_d < 0) | |
517 | mfbi->y_aoi_d = 0; | |
9b53a9e2 YS |
518 | switch (index) { |
519 | case 0: | |
520 | if (mfbi->x_aoi_d != 0) | |
521 | mfbi->x_aoi_d = 0; | |
522 | if (mfbi->y_aoi_d != 0) | |
523 | mfbi->y_aoi_d = 0; | |
524 | break; | |
525 | case 1: /* AOI 0 */ | |
526 | case 3: | |
527 | lower_aoi_mfbi = machine_data->fsl_diu_info[index+1]->par; | |
528 | lower_aoi_is_open = lower_aoi_mfbi->count > 0 ? 1 : 0; | |
529 | if (var->xres > base_plane_width) | |
530 | var->xres = base_plane_width; | |
531 | if ((mfbi->x_aoi_d + var->xres) > base_plane_width) | |
532 | mfbi->x_aoi_d = base_plane_width - var->xres; | |
533 | ||
534 | if (lower_aoi_is_open) | |
535 | available_height = lower_aoi_mfbi->y_aoi_d; | |
536 | else | |
537 | available_height = base_plane_height; | |
538 | if (var->yres > available_height) | |
539 | var->yres = available_height; | |
540 | if ((mfbi->y_aoi_d + var->yres) > available_height) | |
541 | mfbi->y_aoi_d = available_height - var->yres; | |
542 | break; | |
543 | case 2: /* AOI 1 */ | |
544 | case 4: | |
545 | upper_aoi_mfbi = machine_data->fsl_diu_info[index-1]->par; | |
546 | upper_aoi_height = | |
547 | machine_data->fsl_diu_info[index-1]->var.yres; | |
548 | upper_aoi_bottom = upper_aoi_mfbi->y_aoi_d + upper_aoi_height; | |
549 | upper_aoi_is_open = upper_aoi_mfbi->count > 0 ? 1 : 0; | |
550 | if (var->xres > base_plane_width) | |
551 | var->xres = base_plane_width; | |
552 | if ((mfbi->x_aoi_d + var->xres) > base_plane_width) | |
553 | mfbi->x_aoi_d = base_plane_width - var->xres; | |
554 | if (mfbi->y_aoi_d < 0) | |
555 | mfbi->y_aoi_d = 0; | |
556 | if (upper_aoi_is_open) { | |
557 | if (mfbi->y_aoi_d < upper_aoi_bottom) | |
558 | mfbi->y_aoi_d = upper_aoi_bottom; | |
559 | available_height = base_plane_height | |
560 | - upper_aoi_bottom; | |
561 | } else | |
562 | available_height = base_plane_height; | |
563 | if (var->yres > available_height) | |
564 | var->yres = available_height; | |
565 | if ((mfbi->y_aoi_d + var->yres) > base_plane_height) | |
566 | mfbi->y_aoi_d = base_plane_height - var->yres; | |
567 | break; | |
568 | } | |
569 | } | |
570 | /* | |
571 | * Checks to see if the hardware supports the state requested by var passed | |
572 | * in. This function does not alter the hardware state! If the var passed in | |
573 | * is slightly off by what the hardware can support then we alter the var | |
574 | * PASSED in to what we can do. If the hardware doesn't support mode change | |
575 | * a -EINVAL will be returned by the upper layers. | |
576 | */ | |
577 | static int fsl_diu_check_var(struct fb_var_screeninfo *var, | |
578 | struct fb_info *info) | |
579 | { | |
9b53a9e2 YS |
580 | if (var->xres_virtual < var->xres) |
581 | var->xres_virtual = var->xres; | |
582 | if (var->yres_virtual < var->yres) | |
583 | var->yres_virtual = var->yres; | |
584 | ||
585 | if (var->xoffset < 0) | |
586 | var->xoffset = 0; | |
587 | ||
588 | if (var->yoffset < 0) | |
589 | var->yoffset = 0; | |
590 | ||
591 | if (var->xoffset + info->var.xres > info->var.xres_virtual) | |
592 | var->xoffset = info->var.xres_virtual - info->var.xres; | |
593 | ||
594 | if (var->yoffset + info->var.yres > info->var.yres_virtual) | |
595 | var->yoffset = info->var.yres_virtual - info->var.yres; | |
596 | ||
597 | if ((var->bits_per_pixel != 32) && (var->bits_per_pixel != 24) && | |
598 | (var->bits_per_pixel != 16)) | |
599 | var->bits_per_pixel = default_bpp; | |
600 | ||
601 | switch (var->bits_per_pixel) { | |
602 | case 16: | |
603 | var->red.length = 5; | |
604 | var->red.offset = 11; | |
605 | var->red.msb_right = 0; | |
606 | ||
607 | var->green.length = 6; | |
608 | var->green.offset = 5; | |
609 | var->green.msb_right = 0; | |
610 | ||
611 | var->blue.length = 5; | |
612 | var->blue.offset = 0; | |
613 | var->blue.msb_right = 0; | |
614 | ||
615 | var->transp.length = 0; | |
616 | var->transp.offset = 0; | |
617 | var->transp.msb_right = 0; | |
618 | break; | |
619 | case 24: | |
620 | var->red.length = 8; | |
621 | var->red.offset = 0; | |
622 | var->red.msb_right = 0; | |
623 | ||
624 | var->green.length = 8; | |
625 | var->green.offset = 8; | |
626 | var->green.msb_right = 0; | |
627 | ||
628 | var->blue.length = 8; | |
629 | var->blue.offset = 16; | |
630 | var->blue.msb_right = 0; | |
631 | ||
632 | var->transp.length = 0; | |
633 | var->transp.offset = 0; | |
634 | var->transp.msb_right = 0; | |
635 | break; | |
636 | case 32: | |
637 | var->red.length = 8; | |
638 | var->red.offset = 16; | |
639 | var->red.msb_right = 0; | |
640 | ||
641 | var->green.length = 8; | |
642 | var->green.offset = 8; | |
643 | var->green.msb_right = 0; | |
644 | ||
645 | var->blue.length = 8; | |
646 | var->blue.offset = 0; | |
647 | var->blue.msb_right = 0; | |
648 | ||
649 | var->transp.length = 8; | |
650 | var->transp.offset = 24; | |
651 | var->transp.msb_right = 0; | |
652 | ||
653 | break; | |
654 | } | |
9b53a9e2 YS |
655 | |
656 | var->height = -1; | |
657 | var->width = -1; | |
658 | var->grayscale = 0; | |
659 | ||
660 | /* Copy nonstd field to/from sync for fbset usage */ | |
661 | var->sync |= var->nonstd; | |
662 | var->nonstd |= var->sync; | |
663 | ||
664 | adjust_aoi_size_position(var, info); | |
665 | return 0; | |
666 | } | |
667 | ||
668 | static void set_fix(struct fb_info *info) | |
669 | { | |
670 | struct fb_fix_screeninfo *fix = &info->fix; | |
671 | struct fb_var_screeninfo *var = &info->var; | |
672 | struct mfb_info *mfbi = info->par; | |
673 | ||
674 | strncpy(fix->id, mfbi->id, strlen(mfbi->id)); | |
675 | fix->line_length = var->xres_virtual * var->bits_per_pixel / 8; | |
676 | fix->type = FB_TYPE_PACKED_PIXELS; | |
677 | fix->accel = FB_ACCEL_NONE; | |
678 | fix->visual = FB_VISUAL_TRUECOLOR; | |
679 | fix->xpanstep = 1; | |
680 | fix->ypanstep = 1; | |
681 | } | |
682 | ||
683 | static void update_lcdc(struct fb_info *info) | |
684 | { | |
685 | struct fb_var_screeninfo *var = &info->var; | |
686 | struct mfb_info *mfbi = info->par; | |
687 | struct fsl_diu_data *machine_data = mfbi->parent; | |
688 | struct diu *hw; | |
689 | int i, j; | |
690 | char __iomem *cursor_base, *gamma_table_base; | |
691 | ||
692 | u32 temp; | |
693 | ||
694 | hw = dr.diu_reg; | |
695 | ||
696 | if (mfbi->type == MFB_TYPE_OFF) { | |
697 | fsl_diu_disable_panel(info); | |
698 | return; | |
699 | } | |
700 | ||
701 | diu_ops.set_monitor_port(machine_data->monitor_port); | |
702 | gamma_table_base = pool.gamma.vaddr; | |
703 | cursor_base = pool.cursor.vaddr; | |
704 | /* Prep for DIU init - gamma table, cursor table */ | |
705 | ||
706 | for (i = 0; i <= 2; i++) | |
4a85dc8b TT |
707 | for (j = 0; j <= 255; j++) |
708 | *gamma_table_base++ = j; | |
9b53a9e2 YS |
709 | |
710 | diu_ops.set_gamma_table(machine_data->monitor_port, pool.gamma.vaddr); | |
711 | ||
9b53a9e2 YS |
712 | disable_lcdc(info); |
713 | ||
714 | /* Program DIU registers */ | |
715 | ||
716 | out_be32(&hw->gamma, pool.gamma.paddr); | |
717 | out_be32(&hw->cursor, pool.cursor.paddr); | |
718 | ||
719 | out_be32(&hw->bgnd, 0x007F7F7F); /* BGND */ | |
720 | out_be32(&hw->bgnd_wb, 0); /* BGND_WB */ | |
721 | out_be32(&hw->disp_size, (var->yres << 16 | var->xres)); | |
722 | /* DISP SIZE */ | |
9b53a9e2 YS |
723 | out_be32(&hw->wb_size, 0); /* WB SIZE */ |
724 | out_be32(&hw->wb_mem_addr, 0); /* WB MEM ADDR */ | |
725 | ||
726 | /* Horizontal and vertical configuration register */ | |
727 | temp = var->left_margin << 22 | /* BP_H */ | |
728 | var->hsync_len << 11 | /* PW_H */ | |
729 | var->right_margin; /* FP_H */ | |
730 | ||
731 | out_be32(&hw->hsyn_para, temp); | |
732 | ||
733 | temp = var->upper_margin << 22 | /* BP_V */ | |
734 | var->vsync_len << 11 | /* PW_V */ | |
735 | var->lower_margin; /* FP_V */ | |
736 | ||
737 | out_be32(&hw->vsyn_para, temp); | |
738 | ||
9b53a9e2 YS |
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 | 754 | |
537a1bf0 | 755 | info->screen_base = fsl_diu_alloc(smem_len, &phys); |
05946bce | 756 | if (info->screen_base == NULL) { |
154152ae | 757 | dev_err(info->dev, "unable to allocate fb memory\n"); |
9b53a9e2 YS |
758 | return -ENOMEM; |
759 | } | |
537a1bf0 | 760 | mutex_lock(&info->mm_lock); |
9b53a9e2 | 761 | info->fix.smem_start = (unsigned long) phys; |
537a1bf0 KH |
762 | info->fix.smem_len = smem_len; |
763 | mutex_unlock(&info->mm_lock); | |
9b53a9e2 YS |
764 | info->screen_size = info->fix.smem_len; |
765 | ||
9b53a9e2 YS |
766 | return 0; |
767 | } | |
768 | ||
769 | static void unmap_video_memory(struct fb_info *info) | |
770 | { | |
771 | fsl_diu_free(info->screen_base, info->fix.smem_len); | |
537a1bf0 | 772 | mutex_lock(&info->mm_lock); |
05946bce | 773 | info->screen_base = NULL; |
9b53a9e2 YS |
774 | info->fix.smem_start = 0; |
775 | info->fix.smem_len = 0; | |
537a1bf0 | 776 | mutex_unlock(&info->mm_lock); |
9b53a9e2 YS |
777 | } |
778 | ||
ae5591e3 YS |
779 | /* |
780 | * Using the fb_var_screeninfo in fb_info we set the aoi of this | |
781 | * particular framebuffer. It is a light version of fsl_diu_set_par. | |
782 | */ | |
783 | static int fsl_diu_set_aoi(struct fb_info *info) | |
784 | { | |
785 | struct fb_var_screeninfo *var = &info->var; | |
786 | struct mfb_info *mfbi = info->par; | |
787 | struct diu_ad *ad = mfbi->ad; | |
788 | ||
789 | /* AOI should not be greater than display size */ | |
790 | ad->offset_xyi = cpu_to_le32((var->yoffset << 16) | var->xoffset); | |
791 | ad->offset_xyd = cpu_to_le32((mfbi->y_aoi_d << 16) | mfbi->x_aoi_d); | |
792 | return 0; | |
793 | } | |
794 | ||
9b53a9e2 YS |
795 | /* |
796 | * Using the fb_var_screeninfo in fb_info we set the resolution of this | |
797 | * particular framebuffer. This function alters the fb_fix_screeninfo stored | |
798 | * in fb_info. It does not alter var in fb_info since we are using that | |
799 | * data. This means we depend on the data in var inside fb_info to be | |
800 | * supported by the hardware. fsl_diu_check_var is always called before | |
801 | * fsl_diu_set_par to ensure this. | |
802 | */ | |
803 | static int fsl_diu_set_par(struct fb_info *info) | |
804 | { | |
805 | unsigned long len; | |
806 | struct fb_var_screeninfo *var = &info->var; | |
807 | struct mfb_info *mfbi = info->par; | |
808 | struct fsl_diu_data *machine_data = mfbi->parent; | |
809 | struct diu_ad *ad = mfbi->ad; | |
810 | struct diu *hw; | |
811 | ||
812 | hw = dr.diu_reg; | |
813 | ||
814 | set_fix(info); | |
815 | mfbi->cursor_reset = 1; | |
816 | ||
817 | len = info->var.yres_virtual * info->fix.line_length; | |
818 | /* Alloc & dealloc each time resolution/bpp change */ | |
819 | if (len != info->fix.smem_len) { | |
820 | if (info->fix.smem_start) | |
821 | unmap_video_memory(info); | |
9b53a9e2 YS |
822 | |
823 | /* Memory allocation for framebuffer */ | |
824 | if (map_video_memory(info)) { | |
154152ae | 825 | dev_err(info->dev, "unable to allocate fb memory 1\n"); |
9b53a9e2 YS |
826 | return -ENOMEM; |
827 | } | |
828 | } | |
829 | ||
7653aaab TT |
830 | ad->pix_fmt = diu_ops.get_pixel_format(machine_data->monitor_port, |
831 | var->bits_per_pixel); | |
9b53a9e2 | 832 | ad->addr = cpu_to_le32(info->fix.smem_start); |
ae5591e3 YS |
833 | ad->src_size_g_alpha = cpu_to_le32((var->yres_virtual << 12) | |
834 | var->xres_virtual) | mfbi->g_alpha; | |
835 | /* AOI should not be greater than display size */ | |
9b53a9e2 | 836 | ad->aoi_size = cpu_to_le32((var->yres << 16) | var->xres); |
ae5591e3 | 837 | ad->offset_xyi = cpu_to_le32((var->yoffset << 16) | var->xoffset); |
9b53a9e2 YS |
838 | ad->offset_xyd = cpu_to_le32((mfbi->y_aoi_d << 16) | mfbi->x_aoi_d); |
839 | ||
840 | /* Disable chroma keying function */ | |
841 | ad->ckmax_r = 0; | |
842 | ad->ckmax_g = 0; | |
843 | ad->ckmax_b = 0; | |
844 | ||
845 | ad->ckmin_r = 255; | |
846 | ad->ckmin_g = 255; | |
847 | ad->ckmin_b = 255; | |
848 | ||
849 | if (mfbi->index == 0) | |
850 | update_lcdc(info); | |
851 | return 0; | |
852 | } | |
853 | ||
854 | static inline __u32 CNVT_TOHW(__u32 val, __u32 width) | |
855 | { | |
4a85dc8b | 856 | return ((val << width) + 0x7FFF - val) >> 16; |
9b53a9e2 YS |
857 | } |
858 | ||
859 | /* | |
860 | * Set a single color register. The values supplied have a 16 bit magnitude | |
861 | * which needs to be scaled in this function for the hardware. Things to take | |
862 | * into consideration are how many color registers, if any, are supported with | |
863 | * the current color visual. With truecolor mode no color palettes are | |
25985edc | 864 | * supported. Here a pseudo palette is created which we store the value in |
9b53a9e2 YS |
865 | * pseudo_palette in struct fb_info. For pseudocolor mode we have a limited |
866 | * color palette. | |
867 | */ | |
4a85dc8b TT |
868 | static int fsl_diu_setcolreg(unsigned int regno, unsigned int red, |
869 | unsigned int green, unsigned int blue, | |
870 | unsigned int transp, struct fb_info *info) | |
9b53a9e2 YS |
871 | { |
872 | int ret = 1; | |
873 | ||
874 | /* | |
875 | * If greyscale is true, then we convert the RGB value | |
876 | * to greyscale no matter what visual we are using. | |
877 | */ | |
878 | if (info->var.grayscale) | |
879 | red = green = blue = (19595 * red + 38470 * green + | |
880 | 7471 * blue) >> 16; | |
881 | switch (info->fix.visual) { | |
882 | case FB_VISUAL_TRUECOLOR: | |
883 | /* | |
884 | * 16-bit True Colour. We encode the RGB value | |
885 | * according to the RGB bitfield information. | |
886 | */ | |
887 | if (regno < 16) { | |
888 | u32 *pal = info->pseudo_palette; | |
889 | u32 v; | |
890 | ||
891 | red = CNVT_TOHW(red, info->var.red.length); | |
892 | green = CNVT_TOHW(green, info->var.green.length); | |
893 | blue = CNVT_TOHW(blue, info->var.blue.length); | |
894 | transp = CNVT_TOHW(transp, info->var.transp.length); | |
895 | ||
896 | v = (red << info->var.red.offset) | | |
897 | (green << info->var.green.offset) | | |
898 | (blue << info->var.blue.offset) | | |
899 | (transp << info->var.transp.offset); | |
900 | ||
901 | pal[regno] = v; | |
902 | ret = 0; | |
903 | } | |
904 | break; | |
9b53a9e2 YS |
905 | } |
906 | ||
907 | return ret; | |
908 | } | |
909 | ||
910 | /* | |
911 | * Pan (or wrap, depending on the `vmode' field) the display using the | |
912 | * 'xoffset' and 'yoffset' fields of the 'var' structure. If the values | |
913 | * don't fit, return -EINVAL. | |
914 | */ | |
915 | static int fsl_diu_pan_display(struct fb_var_screeninfo *var, | |
916 | struct fb_info *info) | |
917 | { | |
918 | if ((info->var.xoffset == var->xoffset) && | |
919 | (info->var.yoffset == var->yoffset)) | |
920 | return 0; /* No change, do nothing */ | |
921 | ||
922 | if (var->xoffset < 0 || var->yoffset < 0 | |
923 | || var->xoffset + info->var.xres > info->var.xres_virtual | |
924 | || var->yoffset + info->var.yres > info->var.yres_virtual) | |
925 | return -EINVAL; | |
926 | ||
927 | info->var.xoffset = var->xoffset; | |
928 | info->var.yoffset = var->yoffset; | |
929 | ||
930 | if (var->vmode & FB_VMODE_YWRAP) | |
931 | info->var.vmode |= FB_VMODE_YWRAP; | |
932 | else | |
933 | info->var.vmode &= ~FB_VMODE_YWRAP; | |
934 | ||
ae5591e3 YS |
935 | fsl_diu_set_aoi(info); |
936 | ||
9b53a9e2 YS |
937 | return 0; |
938 | } | |
939 | ||
940 | /* | |
941 | * Blank the screen if blank_mode != 0, else unblank. Return 0 if blanking | |
942 | * succeeded, != 0 if un-/blanking failed. | |
943 | * blank_mode == 2: suspend vsync | |
944 | * blank_mode == 3: suspend hsync | |
945 | * blank_mode == 4: powerdown | |
946 | */ | |
947 | static int fsl_diu_blank(int blank_mode, struct fb_info *info) | |
948 | { | |
949 | struct mfb_info *mfbi = info->par; | |
950 | ||
951 | mfbi->blank = blank_mode; | |
952 | ||
953 | switch (blank_mode) { | |
954 | case FB_BLANK_VSYNC_SUSPEND: | |
955 | case FB_BLANK_HSYNC_SUSPEND: | |
956 | /* FIXME: fixes to enable_panel and enable lcdc needed */ | |
957 | case FB_BLANK_NORMAL: | |
958 | /* fsl_diu_disable_panel(info);*/ | |
959 | break; | |
960 | case FB_BLANK_POWERDOWN: | |
961 | /* disable_lcdc(info); */ | |
962 | break; | |
963 | case FB_BLANK_UNBLANK: | |
964 | /* fsl_diu_enable_panel(info);*/ | |
965 | break; | |
966 | } | |
967 | ||
968 | return 0; | |
969 | } | |
970 | ||
971 | static int fsl_diu_ioctl(struct fb_info *info, unsigned int cmd, | |
972 | unsigned long arg) | |
973 | { | |
974 | struct mfb_info *mfbi = info->par; | |
975 | struct diu_ad *ad = mfbi->ad; | |
976 | struct mfb_chroma_key ck; | |
977 | unsigned char global_alpha; | |
978 | struct aoi_display_offset aoi_d; | |
979 | __u32 pix_fmt; | |
980 | void __user *buf = (void __user *)arg; | |
981 | ||
982 | if (!arg) | |
983 | return -EINVAL; | |
984 | switch (cmd) { | |
985 | case MFB_SET_PIXFMT: | |
986 | if (copy_from_user(&pix_fmt, buf, sizeof(pix_fmt))) | |
987 | return -EFAULT; | |
988 | ad->pix_fmt = pix_fmt; | |
9b53a9e2 YS |
989 | break; |
990 | case MFB_GET_PIXFMT: | |
991 | pix_fmt = ad->pix_fmt; | |
992 | if (copy_to_user(buf, &pix_fmt, sizeof(pix_fmt))) | |
993 | return -EFAULT; | |
9b53a9e2 YS |
994 | break; |
995 | case MFB_SET_AOID: | |
996 | if (copy_from_user(&aoi_d, buf, sizeof(aoi_d))) | |
997 | return -EFAULT; | |
998 | mfbi->x_aoi_d = aoi_d.x_aoi_d; | |
999 | mfbi->y_aoi_d = aoi_d.y_aoi_d; | |
9b53a9e2 | 1000 | fsl_diu_check_var(&info->var, info); |
ae5591e3 | 1001 | fsl_diu_set_aoi(info); |
9b53a9e2 YS |
1002 | break; |
1003 | case MFB_GET_AOID: | |
1004 | aoi_d.x_aoi_d = mfbi->x_aoi_d; | |
1005 | aoi_d.y_aoi_d = mfbi->y_aoi_d; | |
1006 | if (copy_to_user(buf, &aoi_d, sizeof(aoi_d))) | |
1007 | return -EFAULT; | |
9b53a9e2 YS |
1008 | break; |
1009 | case MFB_GET_ALPHA: | |
1010 | global_alpha = mfbi->g_alpha; | |
1011 | if (copy_to_user(buf, &global_alpha, sizeof(global_alpha))) | |
1012 | return -EFAULT; | |
9b53a9e2 YS |
1013 | break; |
1014 | case MFB_SET_ALPHA: | |
1015 | /* set panel information */ | |
1016 | if (copy_from_user(&global_alpha, buf, sizeof(global_alpha))) | |
1017 | return -EFAULT; | |
1018 | ad->src_size_g_alpha = (ad->src_size_g_alpha & (~0xff)) | | |
1019 | (global_alpha & 0xff); | |
1020 | mfbi->g_alpha = global_alpha; | |
9b53a9e2 YS |
1021 | break; |
1022 | case MFB_SET_CHROMA_KEY: | |
1023 | /* set panel winformation */ | |
1024 | if (copy_from_user(&ck, buf, sizeof(ck))) | |
1025 | return -EFAULT; | |
1026 | ||
1027 | if (ck.enable && | |
1028 | (ck.red_max < ck.red_min || | |
1029 | ck.green_max < ck.green_min || | |
1030 | ck.blue_max < ck.blue_min)) | |
1031 | return -EINVAL; | |
1032 | ||
1033 | if (!ck.enable) { | |
1034 | ad->ckmax_r = 0; | |
1035 | ad->ckmax_g = 0; | |
1036 | ad->ckmax_b = 0; | |
1037 | ad->ckmin_r = 255; | |
1038 | ad->ckmin_g = 255; | |
1039 | ad->ckmin_b = 255; | |
1040 | } else { | |
1041 | ad->ckmax_r = ck.red_max; | |
1042 | ad->ckmax_g = ck.green_max; | |
1043 | ad->ckmax_b = ck.blue_max; | |
1044 | ad->ckmin_r = ck.red_min; | |
1045 | ad->ckmin_g = ck.green_min; | |
1046 | ad->ckmin_b = ck.blue_min; | |
1047 | } | |
9b53a9e2 YS |
1048 | break; |
1049 | case FBIOGET_GWINFO: | |
1050 | if (mfbi->type == MFB_TYPE_OFF) | |
1051 | return -ENODEV; | |
1052 | /* get graphic window information */ | |
1053 | if (copy_to_user(buf, ad, sizeof(*ad))) | |
1054 | return -EFAULT; | |
1055 | break; | |
9b53a9e2 YS |
1056 | |
1057 | default: | |
154152ae | 1058 | dev_err(info->dev, "unknown ioctl command (0x%08X)\n", cmd); |
9b53a9e2 YS |
1059 | return -ENOIOCTLCMD; |
1060 | } | |
1061 | ||
1062 | return 0; | |
1063 | } | |
1064 | ||
1065 | /* turn on fb if count == 1 | |
1066 | */ | |
1067 | static int fsl_diu_open(struct fb_info *info, int user) | |
1068 | { | |
1069 | struct mfb_info *mfbi = info->par; | |
1070 | int res = 0; | |
1071 | ||
4b5006ec AG |
1072 | /* free boot splash memory on first /dev/fb0 open */ |
1073 | if (!mfbi->index && diu_ops.release_bootmem) | |
1074 | diu_ops.release_bootmem(); | |
1075 | ||
9b53a9e2 YS |
1076 | spin_lock(&diu_lock); |
1077 | mfbi->count++; | |
1078 | if (mfbi->count == 1) { | |
9b53a9e2 YS |
1079 | fsl_diu_check_var(&info->var, info); |
1080 | res = fsl_diu_set_par(info); | |
1081 | if (res < 0) | |
1082 | mfbi->count--; | |
1083 | else { | |
1084 | res = fsl_diu_enable_panel(info); | |
1085 | if (res < 0) | |
1086 | mfbi->count--; | |
1087 | } | |
1088 | } | |
1089 | ||
1090 | spin_unlock(&diu_lock); | |
1091 | return res; | |
1092 | } | |
1093 | ||
1094 | /* turn off fb if count == 0 | |
1095 | */ | |
1096 | static int fsl_diu_release(struct fb_info *info, int user) | |
1097 | { | |
1098 | struct mfb_info *mfbi = info->par; | |
1099 | int res = 0; | |
1100 | ||
1101 | spin_lock(&diu_lock); | |
1102 | mfbi->count--; | |
1103 | if (mfbi->count == 0) { | |
9b53a9e2 YS |
1104 | res = fsl_diu_disable_panel(info); |
1105 | if (res < 0) | |
1106 | mfbi->count++; | |
1107 | } | |
1108 | spin_unlock(&diu_lock); | |
1109 | return res; | |
1110 | } | |
1111 | ||
1112 | static struct fb_ops fsl_diu_ops = { | |
1113 | .owner = THIS_MODULE, | |
1114 | .fb_check_var = fsl_diu_check_var, | |
1115 | .fb_set_par = fsl_diu_set_par, | |
1116 | .fb_setcolreg = fsl_diu_setcolreg, | |
1117 | .fb_blank = fsl_diu_blank, | |
1118 | .fb_pan_display = fsl_diu_pan_display, | |
1119 | .fb_fillrect = cfb_fillrect, | |
1120 | .fb_copyarea = cfb_copyarea, | |
1121 | .fb_imageblit = cfb_imageblit, | |
1122 | .fb_ioctl = fsl_diu_ioctl, | |
1123 | .fb_open = fsl_diu_open, | |
1124 | .fb_release = fsl_diu_release, | |
1125 | }; | |
1126 | ||
1127 | static int init_fbinfo(struct fb_info *info) | |
1128 | { | |
1129 | struct mfb_info *mfbi = info->par; | |
1130 | ||
1131 | info->device = NULL; | |
1132 | info->var.activate = FB_ACTIVATE_NOW; | |
1133 | info->fbops = &fsl_diu_ops; | |
1134 | info->flags = FBINFO_FLAG_DEFAULT; | |
1135 | info->pseudo_palette = &mfbi->pseudo_palette; | |
1136 | ||
1137 | /* Allocate colormap */ | |
1138 | fb_alloc_cmap(&info->cmap, 16, 0); | |
1139 | return 0; | |
1140 | } | |
1141 | ||
05946bce | 1142 | static int __devinit install_fb(struct fb_info *info) |
9b53a9e2 YS |
1143 | { |
1144 | int rc; | |
1145 | struct mfb_info *mfbi = info->par; | |
1146 | const char *aoi_mode, *init_aoi_mode = "320x240"; | |
8b856f04 AG |
1147 | struct fb_videomode *db = fsl_diu_mode_db; |
1148 | unsigned int dbsize = ARRAY_SIZE(fsl_diu_mode_db); | |
1149 | int has_default_mode = 1; | |
9b53a9e2 YS |
1150 | |
1151 | if (init_fbinfo(info)) | |
1152 | return -EINVAL; | |
1153 | ||
8b856f04 AG |
1154 | if (mfbi->index == 0) { /* plane 0 */ |
1155 | if (mfbi->edid_data) { | |
1156 | /* Now build modedb from EDID */ | |
1157 | fb_edid_to_monspecs(mfbi->edid_data, &info->monspecs); | |
1158 | fb_videomode_to_modelist(info->monspecs.modedb, | |
1159 | info->monspecs.modedb_len, | |
1160 | &info->modelist); | |
1161 | db = info->monspecs.modedb; | |
1162 | dbsize = info->monspecs.modedb_len; | |
1163 | } | |
9b53a9e2 | 1164 | aoi_mode = fb_mode; |
8b856f04 | 1165 | } else { |
9b53a9e2 | 1166 | aoi_mode = init_aoi_mode; |
8b856f04 | 1167 | } |
8b856f04 AG |
1168 | rc = fb_find_mode(&info->var, info, aoi_mode, db, dbsize, |
1169 | &fsl_diu_default_mode, default_bpp); | |
154152ae | 1170 | if (!rc) { |
8b856f04 AG |
1171 | /* |
1172 | * For plane 0 we continue and look into | |
1173 | * driver's internal modedb. | |
1174 | */ | |
1175 | if (mfbi->index == 0 && mfbi->edid_data) | |
1176 | has_default_mode = 0; | |
1177 | else | |
1178 | return -EINVAL; | |
9b53a9e2 YS |
1179 | } |
1180 | ||
8b856f04 AG |
1181 | if (!has_default_mode) { |
1182 | rc = fb_find_mode(&info->var, info, aoi_mode, fsl_diu_mode_db, | |
1183 | ARRAY_SIZE(fsl_diu_mode_db), | |
1184 | &fsl_diu_default_mode, | |
1185 | default_bpp); | |
1186 | if (rc > 0 && rc < 5) | |
1187 | has_default_mode = 1; | |
1188 | } | |
1189 | ||
1190 | /* Still not found, use preferred mode from database if any */ | |
1191 | if (!has_default_mode && info->monspecs.modedb) { | |
1192 | struct fb_monspecs *specs = &info->monspecs; | |
1193 | struct fb_videomode *modedb = &specs->modedb[0]; | |
1194 | ||
1195 | /* | |
1196 | * Get preferred timing. If not found, | |
1197 | * first mode in database will be used. | |
1198 | */ | |
1199 | if (specs->misc & FB_MISC_1ST_DETAIL) { | |
1200 | int i; | |
1201 | ||
1202 | for (i = 0; i < specs->modedb_len; i++) { | |
1203 | if (specs->modedb[i].flag & FB_MODE_IS_FIRST) { | |
1204 | modedb = &specs->modedb[i]; | |
1205 | break; | |
1206 | } | |
1207 | } | |
1208 | } | |
1209 | ||
1210 | info->var.bits_per_pixel = default_bpp; | |
1211 | fb_videomode_to_var(&info->var, modedb); | |
1212 | } | |
1213 | ||
9b53a9e2 YS |
1214 | if (mfbi->type == MFB_TYPE_OFF) |
1215 | mfbi->blank = FB_BLANK_NORMAL; | |
1216 | else | |
1217 | mfbi->blank = FB_BLANK_UNBLANK; | |
1218 | ||
1219 | if (fsl_diu_check_var(&info->var, info)) { | |
154152ae | 1220 | dev_err(info->dev, "fsl_diu_check_var failed\n"); |
9b53a9e2 YS |
1221 | fb_dealloc_cmap(&info->cmap); |
1222 | return -EINVAL; | |
1223 | } | |
1224 | ||
9b53a9e2 | 1225 | if (register_framebuffer(info) < 0) { |
154152ae | 1226 | dev_err(info->dev, "register_framebuffer failed\n"); |
9b53a9e2 YS |
1227 | unmap_video_memory(info); |
1228 | fb_dealloc_cmap(&info->cmap); | |
1229 | return -EINVAL; | |
1230 | } | |
1231 | ||
1232 | mfbi->registered = 1; | |
154152ae | 1233 | dev_info(info->dev, "%s registered successfully\n", mfbi->id); |
9b53a9e2 YS |
1234 | |
1235 | return 0; | |
1236 | } | |
1237 | ||
05946bce | 1238 | static void uninstall_fb(struct fb_info *info) |
9b53a9e2 YS |
1239 | { |
1240 | struct mfb_info *mfbi = info->par; | |
1241 | ||
1242 | if (!mfbi->registered) | |
1243 | return; | |
1244 | ||
8b856f04 AG |
1245 | if (mfbi->index == 0) |
1246 | kfree(mfbi->edid_data); | |
1247 | ||
9b53a9e2 YS |
1248 | unregister_framebuffer(info); |
1249 | unmap_video_memory(info); | |
1250 | if (&info->cmap) | |
1251 | fb_dealloc_cmap(&info->cmap); | |
1252 | ||
1253 | mfbi->registered = 0; | |
1254 | } | |
1255 | ||
1256 | static irqreturn_t fsl_diu_isr(int irq, void *dev_id) | |
1257 | { | |
1258 | struct diu *hw = dr.diu_reg; | |
1259 | unsigned int status = in_be32(&hw->int_status); | |
1260 | ||
1261 | if (status) { | |
1262 | /* This is the workaround for underrun */ | |
1263 | if (status & INT_UNDRUN) { | |
1264 | out_be32(&hw->diu_mode, 0); | |
9b53a9e2 YS |
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; | |
4a85dc8b | 1271 | |
9b53a9e2 YS |
1272 | for (i = 0; i < coherence_data_size; |
1273 | i += d_cache_line_size) | |
1274 | __asm__ __volatile__ ( | |
1275 | "dcbz 0, %[input]" | |
1276 | ::[input]"r"(&coherence_data[i])); | |
1277 | } | |
1278 | #endif | |
1279 | return IRQ_HANDLED; | |
1280 | } | |
1281 | return IRQ_NONE; | |
1282 | } | |
1283 | ||
1284 | static int request_irq_local(int irq) | |
1285 | { | |
1286 | unsigned long status, ints; | |
1287 | struct diu *hw; | |
1288 | int ret; | |
1289 | ||
1290 | hw = dr.diu_reg; | |
1291 | ||
1292 | /* Read to clear the status */ | |
1293 | status = in_be32(&hw->int_status); | |
1294 | ||
05946bce | 1295 | ret = request_irq(irq, fsl_diu_isr, 0, "diu", NULL); |
154152ae | 1296 | if (!ret) { |
9b53a9e2 YS |
1297 | ints = INT_PARERR | INT_LS_BF_VS; |
1298 | #if !defined(CONFIG_NOT_COHERENT_CACHE) | |
1299 | ints |= INT_VSYNC; | |
1300 | #endif | |
4a85dc8b | 1301 | |
9b53a9e2 YS |
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 | } | |
4a85dc8b | 1309 | |
9b53a9e2 YS |
1310 | return ret; |
1311 | } | |
1312 | ||
1313 | static void free_irq_local(int irq) | |
1314 | { | |
1315 | struct diu *hw = dr.diu_reg; | |
1316 | ||
1317 | /* Disable all LCDC interrupt */ | |
1318 | out_be32(&hw->int_mask, 0x1f); | |
1319 | ||
05946bce | 1320 | free_irq(irq, NULL); |
9b53a9e2 YS |
1321 | } |
1322 | ||
1323 | #ifdef CONFIG_PM | |
1324 | /* | |
1325 | * Power management hooks. Note that we won't be called from IRQ context, | |
1326 | * unlike the blank functions above, so we may sleep. | |
1327 | */ | |
2dc11581 | 1328 | static int fsl_diu_suspend(struct platform_device *ofdev, pm_message_t state) |
9b53a9e2 YS |
1329 | { |
1330 | struct fsl_diu_data *machine_data; | |
1331 | ||
48948a3e | 1332 | machine_data = dev_get_drvdata(&ofdev->dev); |
9b53a9e2 YS |
1333 | disable_lcdc(machine_data->fsl_diu_info[0]); |
1334 | ||
1335 | return 0; | |
1336 | } | |
1337 | ||
2dc11581 | 1338 | static int fsl_diu_resume(struct platform_device *ofdev) |
9b53a9e2 YS |
1339 | { |
1340 | struct fsl_diu_data *machine_data; | |
1341 | ||
48948a3e | 1342 | machine_data = dev_get_drvdata(&ofdev->dev); |
9b53a9e2 YS |
1343 | enable_lcdc(machine_data->fsl_diu_info[0]); |
1344 | ||
1345 | return 0; | |
1346 | } | |
1347 | ||
1348 | #else | |
1349 | #define fsl_diu_suspend NULL | |
1350 | #define fsl_diu_resume NULL | |
1351 | #endif /* CONFIG_PM */ | |
1352 | ||
1353 | /* Align to 64-bit(8-byte), 32-byte, etc. */ | |
f3791889 AV |
1354 | static int allocate_buf(struct device *dev, struct diu_addr *buf, u32 size, |
1355 | u32 bytes_align) | |
9b53a9e2 YS |
1356 | { |
1357 | u32 offset, ssize; | |
1358 | u32 mask; | |
1359 | dma_addr_t paddr = 0; | |
1360 | ||
1361 | ssize = size + bytes_align; | |
f3791889 | 1362 | buf->vaddr = dma_alloc_coherent(dev, ssize, &paddr, GFP_DMA | |
05946bce | 1363 | __GFP_ZERO); |
9b53a9e2 YS |
1364 | if (!buf->vaddr) |
1365 | return -ENOMEM; | |
1366 | ||
1367 | buf->paddr = (__u32) paddr; | |
1368 | ||
1369 | mask = bytes_align - 1; | |
1370 | offset = (u32)buf->paddr & mask; | |
1371 | if (offset) { | |
1372 | buf->offset = bytes_align - offset; | |
1373 | buf->paddr = (u32)buf->paddr + offset; | |
1374 | } else | |
1375 | buf->offset = 0; | |
4a85dc8b | 1376 | |
9b53a9e2 YS |
1377 | return 0; |
1378 | } | |
1379 | ||
f3791889 AV |
1380 | static void free_buf(struct device *dev, struct diu_addr *buf, u32 size, |
1381 | u32 bytes_align) | |
9b53a9e2 | 1382 | { |
4a85dc8b TT |
1383 | dma_free_coherent(dev, size + bytes_align, buf->vaddr, |
1384 | buf->paddr - buf->offset); | |
9b53a9e2 YS |
1385 | } |
1386 | ||
1387 | static ssize_t store_monitor(struct device *device, | |
1388 | struct device_attribute *attr, const char *buf, size_t count) | |
1389 | { | |
7653aaab | 1390 | enum fsl_diu_monitor_port old_monitor_port; |
9b53a9e2 YS |
1391 | struct fsl_diu_data *machine_data = |
1392 | container_of(attr, struct fsl_diu_data, dev_attr); | |
1393 | ||
9b53a9e2 | 1394 | old_monitor_port = machine_data->monitor_port; |
7653aaab | 1395 | machine_data->monitor_port = fsl_diu_name_to_port(buf); |
9b53a9e2 YS |
1396 | |
1397 | if (old_monitor_port != machine_data->monitor_port) { | |
1398 | /* All AOIs need adjust pixel format | |
1399 | * fsl_diu_set_par only change the pixsel format here | |
1400 | * unlikely to fail. */ | |
1401 | fsl_diu_set_par(machine_data->fsl_diu_info[0]); | |
1402 | fsl_diu_set_par(machine_data->fsl_diu_info[1]); | |
1403 | fsl_diu_set_par(machine_data->fsl_diu_info[2]); | |
1404 | fsl_diu_set_par(machine_data->fsl_diu_info[3]); | |
1405 | fsl_diu_set_par(machine_data->fsl_diu_info[4]); | |
1406 | } | |
1407 | return count; | |
1408 | } | |
1409 | ||
1410 | static ssize_t show_monitor(struct device *device, | |
1411 | struct device_attribute *attr, char *buf) | |
1412 | { | |
1413 | struct fsl_diu_data *machine_data = | |
1414 | container_of(attr, struct fsl_diu_data, dev_attr); | |
7653aaab TT |
1415 | |
1416 | switch (machine_data->monitor_port) { | |
1417 | case FSL_DIU_PORT_DVI: | |
1418 | return sprintf(buf, "DVI\n"); | |
1419 | case FSL_DIU_PORT_LVDS: | |
1420 | return sprintf(buf, "Single-link LVDS\n"); | |
1421 | case FSL_DIU_PORT_DLVDS: | |
1422 | return sprintf(buf, "Dual-link LVDS\n"); | |
1423 | } | |
1424 | ||
1425 | return 0; | |
9b53a9e2 YS |
1426 | } |
1427 | ||
9e52ba61 | 1428 | static int __devinit fsl_diu_probe(struct platform_device *pdev) |
9b53a9e2 | 1429 | { |
9e52ba61 | 1430 | struct device_node *np = pdev->dev.of_node; |
9b53a9e2 | 1431 | struct mfb_info *mfbi; |
89f08e3e | 1432 | phys_addr_t dummy_ad_addr = 0; |
9b53a9e2 | 1433 | int ret, i, error = 0; |
9b53a9e2 | 1434 | struct fsl_diu_data *machine_data; |
4b5006ec | 1435 | int diu_mode; |
9b53a9e2 YS |
1436 | |
1437 | machine_data = kzalloc(sizeof(struct fsl_diu_data), GFP_KERNEL); | |
1438 | if (!machine_data) | |
1439 | return -ENOMEM; | |
1440 | ||
1441 | for (i = 0; i < ARRAY_SIZE(machine_data->fsl_diu_info); i++) { | |
1442 | machine_data->fsl_diu_info[i] = | |
9e52ba61 | 1443 | framebuffer_alloc(sizeof(struct mfb_info), &pdev->dev); |
9b53a9e2 | 1444 | if (!machine_data->fsl_diu_info[i]) { |
9e52ba61 | 1445 | dev_err(&pdev->dev, "cannot allocate memory\n"); |
9b53a9e2 YS |
1446 | ret = -ENOMEM; |
1447 | goto error2; | |
1448 | } | |
1449 | mfbi = machine_data->fsl_diu_info[i]->par; | |
1450 | memcpy(mfbi, &mfb_template[i], sizeof(struct mfb_info)); | |
1451 | mfbi->parent = machine_data; | |
8b856f04 AG |
1452 | |
1453 | if (mfbi->index == 0) { | |
1454 | const u8 *prop; | |
1455 | int len; | |
1456 | ||
1457 | /* Get EDID */ | |
1458 | prop = of_get_property(np, "edid", &len); | |
1459 | if (prop && len == EDID_LENGTH) | |
1460 | mfbi->edid_data = kmemdup(prop, EDID_LENGTH, | |
1461 | GFP_KERNEL); | |
1462 | } | |
9b53a9e2 YS |
1463 | } |
1464 | ||
9e52ba61 | 1465 | dr.diu_reg = of_iomap(np, 0); |
9b53a9e2 | 1466 | if (!dr.diu_reg) { |
9e52ba61 | 1467 | dev_err(&pdev->dev, "cannot map DIU registers\n"); |
9b53a9e2 YS |
1468 | ret = -EFAULT; |
1469 | goto error2; | |
1470 | } | |
1471 | ||
4b5006ec AG |
1472 | diu_mode = in_be32(&dr.diu_reg->diu_mode); |
1473 | if (diu_mode != MFB_MODE1) | |
1474 | out_be32(&dr.diu_reg->diu_mode, 0); /* disable DIU */ | |
9b53a9e2 YS |
1475 | |
1476 | /* Get the IRQ of the DIU */ | |
1477 | machine_data->irq = irq_of_parse_and_map(np, 0); | |
1478 | ||
1479 | if (!machine_data->irq) { | |
9e52ba61 | 1480 | dev_err(&pdev->dev, "could not get DIU IRQ\n"); |
9b53a9e2 YS |
1481 | ret = -EINVAL; |
1482 | goto error; | |
1483 | } | |
1484 | machine_data->monitor_port = monitor_port; | |
1485 | ||
1486 | /* Area descriptor memory pool aligns to 64-bit boundary */ | |
9e52ba61 | 1487 | if (allocate_buf(&pdev->dev, &pool.ad, |
f3791889 | 1488 | sizeof(struct diu_ad) * FSL_AOI_NUM, 8)) |
9b53a9e2 YS |
1489 | return -ENOMEM; |
1490 | ||
1491 | /* Get memory for Gamma Table - 32-byte aligned memory */ | |
9e52ba61 | 1492 | if (allocate_buf(&pdev->dev, &pool.gamma, 768, 32)) { |
9b53a9e2 YS |
1493 | ret = -ENOMEM; |
1494 | goto error; | |
1495 | } | |
1496 | ||
1497 | /* For performance, cursor bitmap buffer aligns to 32-byte boundary */ | |
9e52ba61 | 1498 | if (allocate_buf(&pdev->dev, &pool.cursor, MAX_CURS * MAX_CURS * 2, |
f3791889 | 1499 | 32)) { |
9b53a9e2 YS |
1500 | ret = -ENOMEM; |
1501 | goto error; | |
1502 | } | |
1503 | ||
1504 | i = ARRAY_SIZE(machine_data->fsl_diu_info); | |
1505 | machine_data->dummy_ad = (struct diu_ad *) | |
1506 | ((u32)pool.ad.vaddr + pool.ad.offset) + i; | |
1507 | machine_data->dummy_ad->paddr = pool.ad.paddr + | |
1508 | i * sizeof(struct diu_ad); | |
1509 | machine_data->dummy_aoi_virt = fsl_diu_alloc(64, &dummy_ad_addr); | |
1510 | if (!machine_data->dummy_aoi_virt) { | |
1511 | ret = -ENOMEM; | |
1512 | goto error; | |
1513 | } | |
1514 | machine_data->dummy_ad->addr = cpu_to_le32(dummy_ad_addr); | |
1515 | machine_data->dummy_ad->pix_fmt = 0x88882317; | |
1516 | machine_data->dummy_ad->src_size_g_alpha = cpu_to_le32((4 << 12) | 4); | |
1517 | machine_data->dummy_ad->aoi_size = cpu_to_le32((4 << 16) | 2); | |
1518 | machine_data->dummy_ad->offset_xyi = 0; | |
1519 | machine_data->dummy_ad->offset_xyd = 0; | |
1520 | machine_data->dummy_ad->next_ad = 0; | |
1521 | ||
4b5006ec AG |
1522 | /* |
1523 | * Let DIU display splash screen if it was pre-initialized | |
1524 | * by the bootloader, set dummy area descriptor otherwise. | |
1525 | */ | |
1526 | if (diu_mode != MFB_MODE1) | |
1527 | out_be32(&dr.diu_reg->desc[0], machine_data->dummy_ad->paddr); | |
1528 | ||
9b53a9e2 YS |
1529 | out_be32(&dr.diu_reg->desc[1], machine_data->dummy_ad->paddr); |
1530 | out_be32(&dr.diu_reg->desc[2], machine_data->dummy_ad->paddr); | |
1531 | ||
1532 | for (i = 0; i < ARRAY_SIZE(machine_data->fsl_diu_info); i++) { | |
1533 | machine_data->fsl_diu_info[i]->fix.smem_start = 0; | |
1534 | mfbi = machine_data->fsl_diu_info[i]->par; | |
1535 | mfbi->ad = (struct diu_ad *)((u32)pool.ad.vaddr | |
1536 | + pool.ad.offset) + i; | |
1537 | mfbi->ad->paddr = pool.ad.paddr + i * sizeof(struct diu_ad); | |
1538 | ret = install_fb(machine_data->fsl_diu_info[i]); | |
1539 | if (ret) { | |
9e52ba61 | 1540 | dev_err(&pdev->dev, "could not register fb %d\n", i); |
9b53a9e2 YS |
1541 | goto error; |
1542 | } | |
1543 | } | |
1544 | ||
1545 | if (request_irq_local(machine_data->irq)) { | |
9e52ba61 | 1546 | dev_err(&pdev->dev, "could not claim irq\n"); |
9b53a9e2 YS |
1547 | goto error; |
1548 | } | |
1549 | ||
12765517 | 1550 | sysfs_attr_init(&machine_data->dev_attr.attr); |
9b53a9e2 YS |
1551 | machine_data->dev_attr.attr.name = "monitor"; |
1552 | machine_data->dev_attr.attr.mode = S_IRUGO|S_IWUSR; | |
1553 | machine_data->dev_attr.show = show_monitor; | |
1554 | machine_data->dev_attr.store = store_monitor; | |
1555 | error = device_create_file(machine_data->fsl_diu_info[0]->dev, | |
1556 | &machine_data->dev_attr); | |
1557 | if (error) { | |
9e52ba61 | 1558 | dev_err(&pdev->dev, "could not create sysfs file %s\n", |
9b53a9e2 YS |
1559 | machine_data->dev_attr.attr.name); |
1560 | } | |
1561 | ||
9e52ba61 | 1562 | dev_set_drvdata(&pdev->dev, machine_data); |
9b53a9e2 YS |
1563 | return 0; |
1564 | ||
1565 | error: | |
1566 | for (i = ARRAY_SIZE(machine_data->fsl_diu_info); | |
1567 | i > 0; i--) | |
1568 | uninstall_fb(machine_data->fsl_diu_info[i - 1]); | |
1569 | if (pool.ad.vaddr) | |
9e52ba61 | 1570 | free_buf(&pdev->dev, &pool.ad, |
f3791889 | 1571 | sizeof(struct diu_ad) * FSL_AOI_NUM, 8); |
9b53a9e2 | 1572 | if (pool.gamma.vaddr) |
9e52ba61 | 1573 | free_buf(&pdev->dev, &pool.gamma, 768, 32); |
9b53a9e2 | 1574 | if (pool.cursor.vaddr) |
9e52ba61 | 1575 | free_buf(&pdev->dev, &pool.cursor, MAX_CURS * MAX_CURS * 2, |
f3791889 | 1576 | 32); |
9b53a9e2 YS |
1577 | if (machine_data->dummy_aoi_virt) |
1578 | fsl_diu_free(machine_data->dummy_aoi_virt, 64); | |
1579 | iounmap(dr.diu_reg); | |
1580 | ||
1581 | error2: | |
1582 | for (i = 0; i < ARRAY_SIZE(machine_data->fsl_diu_info); i++) | |
1583 | if (machine_data->fsl_diu_info[i]) | |
1584 | framebuffer_release(machine_data->fsl_diu_info[i]); | |
1585 | kfree(machine_data); | |
1586 | ||
1587 | return ret; | |
1588 | } | |
1589 | ||
9e52ba61 | 1590 | static int fsl_diu_remove(struct platform_device *pdev) |
9b53a9e2 YS |
1591 | { |
1592 | struct fsl_diu_data *machine_data; | |
1593 | int i; | |
1594 | ||
9e52ba61 | 1595 | machine_data = dev_get_drvdata(&pdev->dev); |
9b53a9e2 YS |
1596 | disable_lcdc(machine_data->fsl_diu_info[0]); |
1597 | free_irq_local(machine_data->irq); | |
1598 | for (i = ARRAY_SIZE(machine_data->fsl_diu_info); i > 0; i--) | |
1599 | uninstall_fb(machine_data->fsl_diu_info[i - 1]); | |
1600 | if (pool.ad.vaddr) | |
9e52ba61 | 1601 | free_buf(&pdev->dev, &pool.ad, |
f3791889 | 1602 | sizeof(struct diu_ad) * FSL_AOI_NUM, 8); |
9b53a9e2 | 1603 | if (pool.gamma.vaddr) |
9e52ba61 | 1604 | free_buf(&pdev->dev, &pool.gamma, 768, 32); |
9b53a9e2 | 1605 | if (pool.cursor.vaddr) |
9e52ba61 | 1606 | free_buf(&pdev->dev, &pool.cursor, MAX_CURS * MAX_CURS * 2, 32); |
9b53a9e2 YS |
1607 | if (machine_data->dummy_aoi_virt) |
1608 | fsl_diu_free(machine_data->dummy_aoi_virt, 64); | |
1609 | iounmap(dr.diu_reg); | |
1610 | for (i = 0; i < ARRAY_SIZE(machine_data->fsl_diu_info); i++) | |
1611 | if (machine_data->fsl_diu_info[i]) | |
1612 | framebuffer_release(machine_data->fsl_diu_info[i]); | |
1613 | kfree(machine_data); | |
1614 | ||
1615 | return 0; | |
1616 | } | |
1617 | ||
1618 | #ifndef MODULE | |
1619 | static int __init fsl_diu_setup(char *options) | |
1620 | { | |
1621 | char *opt; | |
1622 | unsigned long val; | |
1623 | ||
1624 | if (!options || !*options) | |
1625 | return 0; | |
1626 | ||
1627 | while ((opt = strsep(&options, ",")) != NULL) { | |
1628 | if (!*opt) | |
1629 | continue; | |
1630 | if (!strncmp(opt, "monitor=", 8)) { | |
7653aaab | 1631 | monitor_port = fsl_diu_name_to_port(opt + 8); |
9b53a9e2 YS |
1632 | } else if (!strncmp(opt, "bpp=", 4)) { |
1633 | if (!strict_strtoul(opt + 4, 10, &val)) | |
1634 | default_bpp = val; | |
1635 | } else | |
1636 | fb_mode = opt; | |
1637 | } | |
1638 | ||
1639 | return 0; | |
1640 | } | |
1641 | #endif | |
1642 | ||
1643 | static struct of_device_id fsl_diu_match[] = { | |
d24720a4 AG |
1644 | #ifdef CONFIG_PPC_MPC512x |
1645 | { | |
1646 | .compatible = "fsl,mpc5121-diu", | |
1647 | }, | |
1648 | #endif | |
9b53a9e2 YS |
1649 | { |
1650 | .compatible = "fsl,diu", | |
1651 | }, | |
1652 | {} | |
1653 | }; | |
1654 | MODULE_DEVICE_TABLE(of, fsl_diu_match); | |
1655 | ||
28541d0f | 1656 | static struct platform_driver fsl_diu_driver = { |
4018294b GL |
1657 | .driver = { |
1658 | .name = "fsl_diu", | |
1659 | .owner = THIS_MODULE, | |
1660 | .of_match_table = fsl_diu_match, | |
1661 | }, | |
9b53a9e2 YS |
1662 | .probe = fsl_diu_probe, |
1663 | .remove = fsl_diu_remove, | |
1664 | .suspend = fsl_diu_suspend, | |
1665 | .resume = fsl_diu_resume, | |
1666 | }; | |
1667 | ||
1668 | static int __init fsl_diu_init(void) | |
1669 | { | |
1670 | #ifdef CONFIG_NOT_COHERENT_CACHE | |
1671 | struct device_node *np; | |
1672 | const u32 *prop; | |
1673 | #endif | |
1674 | int ret; | |
1675 | #ifndef MODULE | |
1676 | char *option; | |
1677 | ||
1678 | /* | |
1679 | * For kernel boot options (in 'video=xxxfb:<options>' format) | |
1680 | */ | |
1681 | if (fb_get_options("fslfb", &option)) | |
1682 | return -ENODEV; | |
1683 | fsl_diu_setup(option); | |
7653aaab TT |
1684 | #else |
1685 | monitor_port = fsl_diu_name_to_port(monitor_string); | |
9b53a9e2 | 1686 | #endif |
154152ae | 1687 | pr_info("Freescale Display Interface Unit (DIU) framebuffer driver\n"); |
9b53a9e2 YS |
1688 | |
1689 | #ifdef CONFIG_NOT_COHERENT_CACHE | |
1690 | np = of_find_node_by_type(NULL, "cpu"); | |
1691 | if (!np) { | |
154152ae | 1692 | pr_err("fsl-diu-fb: can't find 'cpu' device node\n"); |
9b53a9e2 YS |
1693 | return -ENODEV; |
1694 | } | |
1695 | ||
1696 | prop = of_get_property(np, "d-cache-size", NULL); | |
5394ba0f | 1697 | if (prop == NULL) { |
154152ae TT |
1698 | pr_err("fsl-diu-fb: missing 'd-cache-size' property' " |
1699 | "in 'cpu' node\n"); | |
5394ba0f | 1700 | of_node_put(np); |
9b53a9e2 | 1701 | return -ENODEV; |
5394ba0f | 1702 | } |
9b53a9e2 | 1703 | |
4a85dc8b TT |
1704 | /* |
1705 | * Freescale PLRU requires 13/8 times the cache size to do a proper | |
1706 | * displacement flush | |
9b53a9e2 | 1707 | */ |
9e52ba61 | 1708 | coherence_data_size = be32_to_cpup(prop) * 13; |
9b53a9e2 YS |
1709 | coherence_data_size /= 8; |
1710 | ||
1711 | prop = of_get_property(np, "d-cache-line-size", NULL); | |
5394ba0f | 1712 | if (prop == NULL) { |
154152ae TT |
1713 | pr_err("fsl-diu-fb: missing 'd-cache-line-size' property' " |
1714 | "in 'cpu' node\n"); | |
5394ba0f | 1715 | of_node_put(np); |
9b53a9e2 | 1716 | return -ENODEV; |
5394ba0f | 1717 | } |
9e52ba61 | 1718 | d_cache_line_size = be32_to_cpup(prop); |
9b53a9e2 YS |
1719 | |
1720 | of_node_put(np); | |
1721 | coherence_data = vmalloc(coherence_data_size); | |
1722 | if (!coherence_data) | |
1723 | return -ENOMEM; | |
1724 | #endif | |
4a85dc8b | 1725 | |
28541d0f | 1726 | ret = platform_driver_register(&fsl_diu_driver); |
9b53a9e2 | 1727 | if (ret) { |
154152ae | 1728 | pr_err("fsl-diu-fb: failed to register platform driver\n"); |
9b53a9e2 YS |
1729 | #if defined(CONFIG_NOT_COHERENT_CACHE) |
1730 | vfree(coherence_data); | |
1731 | #endif | |
1732 | iounmap(dr.diu_reg); | |
1733 | } | |
1734 | return ret; | |
1735 | } | |
1736 | ||
1737 | static void __exit fsl_diu_exit(void) | |
1738 | { | |
28541d0f | 1739 | platform_driver_unregister(&fsl_diu_driver); |
9b53a9e2 YS |
1740 | #if defined(CONFIG_NOT_COHERENT_CACHE) |
1741 | vfree(coherence_data); | |
1742 | #endif | |
1743 | } | |
1744 | ||
1745 | module_init(fsl_diu_init); | |
1746 | module_exit(fsl_diu_exit); | |
1747 | ||
1748 | MODULE_AUTHOR("York Sun <yorksun@freescale.com>"); | |
1749 | MODULE_DESCRIPTION("Freescale DIU framebuffer driver"); | |
1750 | MODULE_LICENSE("GPL"); | |
1751 | ||
1752 | module_param_named(mode, fb_mode, charp, 0); | |
1753 | MODULE_PARM_DESC(mode, | |
1754 | "Specify resolution as \"<xres>x<yres>[-<bpp>][@<refresh>]\" "); | |
1755 | module_param_named(bpp, default_bpp, ulong, 0); | |
154152ae | 1756 | MODULE_PARM_DESC(bpp, "Specify bit-per-pixel if not specified in 'mode'"); |
7653aaab TT |
1757 | module_param_named(monitor, monitor_string, charp, 0); |
1758 | MODULE_PARM_DESC(monitor, "Specify the monitor port " | |
1759 | "(\"dvi\", \"lvds\", or \"dlvds\") if supported by the platform"); | |
9b53a9e2 | 1760 |