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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 | ||
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 | pr_debug("size=%zu\n", size); |
9b53a9e2 | 326 | |
6b51d51a | 327 | virt = alloc_pages_exact(size, GFP_DMA | __GFP_ZERO); |
9b53a9e2 YS |
328 | if (virt) { |
329 | *phys = virt_to_phys(virt); | |
6b51d51a TT |
330 | pr_debug("virt=%p phys=%llx\n", virt, |
331 | (unsigned long long)*phys); | |
9b53a9e2 YS |
332 | } |
333 | ||
9b53a9e2 YS |
334 | return virt; |
335 | } | |
336 | ||
6b51d51a TT |
337 | /** |
338 | * fsl_diu_free - release DIU memory | |
339 | * @virt: pointer returned by fsl_diu_alloc() | |
340 | * @size: number of bytes allocated by fsl_diu_alloc() | |
341 | * | |
342 | * This function releases memory allocated by fsl_diu_alloc(). | |
343 | */ | |
344 | static void fsl_diu_free(void *virt, size_t size) | |
9b53a9e2 | 345 | { |
6b51d51a | 346 | pr_debug("virt=%p size=%zu\n", virt, size); |
9b53a9e2 | 347 | |
6b51d51a TT |
348 | if (virt && size) |
349 | free_pages_exact(virt, size); | |
9b53a9e2 YS |
350 | } |
351 | ||
0d9dab39 AG |
352 | /* |
353 | * Workaround for failed writing desc register of planes. | |
354 | * Needed with MPC5121 DIU rev 2.0 silicon. | |
355 | */ | |
356 | void wr_reg_wa(u32 *reg, u32 val) | |
357 | { | |
358 | do { | |
359 | out_be32(reg, val); | |
360 | } while (in_be32(reg) != val); | |
361 | } | |
362 | ||
9b53a9e2 YS |
363 | static int fsl_diu_enable_panel(struct fb_info *info) |
364 | { | |
365 | struct mfb_info *pmfbi, *cmfbi, *mfbi = info->par; | |
366 | struct diu *hw = dr.diu_reg; | |
367 | struct diu_ad *ad = mfbi->ad; | |
368 | struct fsl_diu_data *machine_data = mfbi->parent; | |
369 | int res = 0; | |
370 | ||
371 | pr_debug("enable_panel index %d\n", mfbi->index); | |
372 | if (mfbi->type != MFB_TYPE_OFF) { | |
373 | switch (mfbi->index) { | |
374 | case 0: /* plane 0 */ | |
375 | if (hw->desc[0] != ad->paddr) | |
0d9dab39 | 376 | wr_reg_wa(&hw->desc[0], ad->paddr); |
9b53a9e2 YS |
377 | break; |
378 | case 1: /* plane 1 AOI 0 */ | |
379 | cmfbi = machine_data->fsl_diu_info[2]->par; | |
380 | if (hw->desc[1] != ad->paddr) { /* AOI0 closed */ | |
381 | if (cmfbi->count > 0) /* AOI1 open */ | |
382 | ad->next_ad = | |
383 | cpu_to_le32(cmfbi->ad->paddr); | |
384 | else | |
385 | ad->next_ad = 0; | |
0d9dab39 | 386 | wr_reg_wa(&hw->desc[1], ad->paddr); |
9b53a9e2 YS |
387 | } |
388 | break; | |
389 | case 3: /* plane 2 AOI 0 */ | |
390 | cmfbi = machine_data->fsl_diu_info[4]->par; | |
391 | if (hw->desc[2] != ad->paddr) { /* AOI0 closed */ | |
392 | if (cmfbi->count > 0) /* AOI1 open */ | |
393 | ad->next_ad = | |
394 | cpu_to_le32(cmfbi->ad->paddr); | |
395 | else | |
396 | ad->next_ad = 0; | |
0d9dab39 | 397 | wr_reg_wa(&hw->desc[2], ad->paddr); |
9b53a9e2 YS |
398 | } |
399 | break; | |
400 | case 2: /* plane 1 AOI 1 */ | |
401 | pmfbi = machine_data->fsl_diu_info[1]->par; | |
402 | ad->next_ad = 0; | |
403 | if (hw->desc[1] == machine_data->dummy_ad->paddr) | |
0d9dab39 | 404 | wr_reg_wa(&hw->desc[1], ad->paddr); |
9b53a9e2 YS |
405 | else /* AOI0 open */ |
406 | pmfbi->ad->next_ad = cpu_to_le32(ad->paddr); | |
407 | break; | |
408 | case 4: /* plane 2 AOI 1 */ | |
409 | pmfbi = machine_data->fsl_diu_info[3]->par; | |
410 | ad->next_ad = 0; | |
411 | if (hw->desc[2] == machine_data->dummy_ad->paddr) | |
0d9dab39 | 412 | wr_reg_wa(&hw->desc[2], ad->paddr); |
9b53a9e2 YS |
413 | else /* AOI0 was open */ |
414 | pmfbi->ad->next_ad = cpu_to_le32(ad->paddr); | |
415 | break; | |
416 | default: | |
417 | res = -EINVAL; | |
418 | break; | |
419 | } | |
420 | } else | |
421 | res = -EINVAL; | |
422 | return res; | |
423 | } | |
424 | ||
425 | static int fsl_diu_disable_panel(struct fb_info *info) | |
426 | { | |
427 | struct mfb_info *pmfbi, *cmfbi, *mfbi = info->par; | |
428 | struct diu *hw = dr.diu_reg; | |
429 | struct diu_ad *ad = mfbi->ad; | |
430 | struct fsl_diu_data *machine_data = mfbi->parent; | |
431 | int res = 0; | |
432 | ||
433 | switch (mfbi->index) { | |
434 | case 0: /* plane 0 */ | |
435 | if (hw->desc[0] != machine_data->dummy_ad->paddr) | |
0d9dab39 | 436 | wr_reg_wa(&hw->desc[0], machine_data->dummy_ad->paddr); |
9b53a9e2 YS |
437 | break; |
438 | case 1: /* plane 1 AOI 0 */ | |
439 | cmfbi = machine_data->fsl_diu_info[2]->par; | |
440 | if (cmfbi->count > 0) /* AOI1 is open */ | |
0d9dab39 | 441 | wr_reg_wa(&hw->desc[1], cmfbi->ad->paddr); |
9b53a9e2 YS |
442 | /* move AOI1 to the first */ |
443 | else /* AOI1 was closed */ | |
0d9dab39 | 444 | wr_reg_wa(&hw->desc[1], machine_data->dummy_ad->paddr); |
9b53a9e2 YS |
445 | /* close AOI 0 */ |
446 | break; | |
447 | case 3: /* plane 2 AOI 0 */ | |
448 | cmfbi = machine_data->fsl_diu_info[4]->par; | |
449 | if (cmfbi->count > 0) /* AOI1 is open */ | |
0d9dab39 | 450 | wr_reg_wa(&hw->desc[2], cmfbi->ad->paddr); |
9b53a9e2 YS |
451 | /* move AOI1 to the first */ |
452 | else /* AOI1 was closed */ | |
0d9dab39 | 453 | wr_reg_wa(&hw->desc[2], machine_data->dummy_ad->paddr); |
9b53a9e2 YS |
454 | /* close AOI 0 */ |
455 | break; | |
456 | case 2: /* plane 1 AOI 1 */ | |
457 | pmfbi = machine_data->fsl_diu_info[1]->par; | |
458 | if (hw->desc[1] != ad->paddr) { | |
459 | /* AOI1 is not the first in the chain */ | |
460 | if (pmfbi->count > 0) | |
461 | /* AOI0 is open, must be the first */ | |
462 | pmfbi->ad->next_ad = 0; | |
463 | } else /* AOI1 is the first in the chain */ | |
0d9dab39 | 464 | wr_reg_wa(&hw->desc[1], machine_data->dummy_ad->paddr); |
9b53a9e2 YS |
465 | /* close AOI 1 */ |
466 | break; | |
467 | case 4: /* plane 2 AOI 1 */ | |
468 | pmfbi = machine_data->fsl_diu_info[3]->par; | |
469 | if (hw->desc[2] != ad->paddr) { | |
470 | /* AOI1 is not the first in the chain */ | |
471 | if (pmfbi->count > 0) | |
472 | /* AOI0 is open, must be the first */ | |
473 | pmfbi->ad->next_ad = 0; | |
474 | } else /* AOI1 is the first in the chain */ | |
0d9dab39 | 475 | wr_reg_wa(&hw->desc[2], machine_data->dummy_ad->paddr); |
9b53a9e2 YS |
476 | /* close AOI 1 */ |
477 | break; | |
478 | default: | |
479 | res = -EINVAL; | |
480 | break; | |
481 | } | |
482 | ||
483 | return res; | |
484 | } | |
485 | ||
486 | static void enable_lcdc(struct fb_info *info) | |
487 | { | |
488 | struct diu *hw = dr.diu_reg; | |
489 | struct mfb_info *mfbi = info->par; | |
490 | struct fsl_diu_data *machine_data = mfbi->parent; | |
491 | ||
492 | if (!machine_data->fb_enabled) { | |
493 | out_be32(&hw->diu_mode, dr.mode); | |
494 | machine_data->fb_enabled++; | |
495 | } | |
496 | } | |
497 | ||
498 | static void disable_lcdc(struct fb_info *info) | |
499 | { | |
500 | struct diu *hw = dr.diu_reg; | |
501 | struct mfb_info *mfbi = info->par; | |
502 | struct fsl_diu_data *machine_data = mfbi->parent; | |
503 | ||
504 | if (machine_data->fb_enabled) { | |
505 | out_be32(&hw->diu_mode, 0); | |
506 | machine_data->fb_enabled = 0; | |
507 | } | |
508 | } | |
509 | ||
510 | static void adjust_aoi_size_position(struct fb_var_screeninfo *var, | |
511 | struct fb_info *info) | |
512 | { | |
513 | struct mfb_info *lower_aoi_mfbi, *upper_aoi_mfbi, *mfbi = info->par; | |
514 | struct fsl_diu_data *machine_data = mfbi->parent; | |
515 | int available_height, upper_aoi_bottom, index = mfbi->index; | |
516 | int lower_aoi_is_open, upper_aoi_is_open; | |
517 | __u32 base_plane_width, base_plane_height, upper_aoi_height; | |
518 | ||
519 | base_plane_width = machine_data->fsl_diu_info[0]->var.xres; | |
520 | base_plane_height = machine_data->fsl_diu_info[0]->var.yres; | |
521 | ||
fdfaa483 YS |
522 | if (mfbi->x_aoi_d < 0) |
523 | mfbi->x_aoi_d = 0; | |
524 | if (mfbi->y_aoi_d < 0) | |
525 | mfbi->y_aoi_d = 0; | |
9b53a9e2 YS |
526 | switch (index) { |
527 | case 0: | |
528 | if (mfbi->x_aoi_d != 0) | |
529 | mfbi->x_aoi_d = 0; | |
530 | if (mfbi->y_aoi_d != 0) | |
531 | mfbi->y_aoi_d = 0; | |
532 | break; | |
533 | case 1: /* AOI 0 */ | |
534 | case 3: | |
535 | lower_aoi_mfbi = machine_data->fsl_diu_info[index+1]->par; | |
536 | lower_aoi_is_open = lower_aoi_mfbi->count > 0 ? 1 : 0; | |
537 | if (var->xres > base_plane_width) | |
538 | var->xres = base_plane_width; | |
539 | if ((mfbi->x_aoi_d + var->xres) > base_plane_width) | |
540 | mfbi->x_aoi_d = base_plane_width - var->xres; | |
541 | ||
542 | if (lower_aoi_is_open) | |
543 | available_height = lower_aoi_mfbi->y_aoi_d; | |
544 | else | |
545 | available_height = base_plane_height; | |
546 | if (var->yres > available_height) | |
547 | var->yres = available_height; | |
548 | if ((mfbi->y_aoi_d + var->yres) > available_height) | |
549 | mfbi->y_aoi_d = available_height - var->yres; | |
550 | break; | |
551 | case 2: /* AOI 1 */ | |
552 | case 4: | |
553 | upper_aoi_mfbi = machine_data->fsl_diu_info[index-1]->par; | |
554 | upper_aoi_height = | |
555 | machine_data->fsl_diu_info[index-1]->var.yres; | |
556 | upper_aoi_bottom = upper_aoi_mfbi->y_aoi_d + upper_aoi_height; | |
557 | upper_aoi_is_open = upper_aoi_mfbi->count > 0 ? 1 : 0; | |
558 | if (var->xres > base_plane_width) | |
559 | var->xres = base_plane_width; | |
560 | if ((mfbi->x_aoi_d + var->xres) > base_plane_width) | |
561 | mfbi->x_aoi_d = base_plane_width - var->xres; | |
562 | if (mfbi->y_aoi_d < 0) | |
563 | mfbi->y_aoi_d = 0; | |
564 | if (upper_aoi_is_open) { | |
565 | if (mfbi->y_aoi_d < upper_aoi_bottom) | |
566 | mfbi->y_aoi_d = upper_aoi_bottom; | |
567 | available_height = base_plane_height | |
568 | - upper_aoi_bottom; | |
569 | } else | |
570 | available_height = base_plane_height; | |
571 | if (var->yres > available_height) | |
572 | var->yres = available_height; | |
573 | if ((mfbi->y_aoi_d + var->yres) > base_plane_height) | |
574 | mfbi->y_aoi_d = base_plane_height - var->yres; | |
575 | break; | |
576 | } | |
577 | } | |
578 | /* | |
579 | * Checks to see if the hardware supports the state requested by var passed | |
580 | * in. This function does not alter the hardware state! If the var passed in | |
581 | * is slightly off by what the hardware can support then we alter the var | |
582 | * PASSED in to what we can do. If the hardware doesn't support mode change | |
583 | * a -EINVAL will be returned by the upper layers. | |
584 | */ | |
585 | static int fsl_diu_check_var(struct fb_var_screeninfo *var, | |
586 | struct fb_info *info) | |
587 | { | |
9b53a9e2 YS |
588 | pr_debug("check_var xres: %d\n", var->xres); |
589 | pr_debug("check_var yres: %d\n", var->yres); | |
590 | ||
591 | if (var->xres_virtual < var->xres) | |
592 | var->xres_virtual = var->xres; | |
593 | if (var->yres_virtual < var->yres) | |
594 | var->yres_virtual = var->yres; | |
595 | ||
596 | if (var->xoffset < 0) | |
597 | var->xoffset = 0; | |
598 | ||
599 | if (var->yoffset < 0) | |
600 | var->yoffset = 0; | |
601 | ||
602 | if (var->xoffset + info->var.xres > info->var.xres_virtual) | |
603 | var->xoffset = info->var.xres_virtual - info->var.xres; | |
604 | ||
605 | if (var->yoffset + info->var.yres > info->var.yres_virtual) | |
606 | var->yoffset = info->var.yres_virtual - info->var.yres; | |
607 | ||
608 | if ((var->bits_per_pixel != 32) && (var->bits_per_pixel != 24) && | |
609 | (var->bits_per_pixel != 16)) | |
610 | var->bits_per_pixel = default_bpp; | |
611 | ||
612 | switch (var->bits_per_pixel) { | |
613 | case 16: | |
614 | var->red.length = 5; | |
615 | var->red.offset = 11; | |
616 | var->red.msb_right = 0; | |
617 | ||
618 | var->green.length = 6; | |
619 | var->green.offset = 5; | |
620 | var->green.msb_right = 0; | |
621 | ||
622 | var->blue.length = 5; | |
623 | var->blue.offset = 0; | |
624 | var->blue.msb_right = 0; | |
625 | ||
626 | var->transp.length = 0; | |
627 | var->transp.offset = 0; | |
628 | var->transp.msb_right = 0; | |
629 | break; | |
630 | case 24: | |
631 | var->red.length = 8; | |
632 | var->red.offset = 0; | |
633 | var->red.msb_right = 0; | |
634 | ||
635 | var->green.length = 8; | |
636 | var->green.offset = 8; | |
637 | var->green.msb_right = 0; | |
638 | ||
639 | var->blue.length = 8; | |
640 | var->blue.offset = 16; | |
641 | var->blue.msb_right = 0; | |
642 | ||
643 | var->transp.length = 0; | |
644 | var->transp.offset = 0; | |
645 | var->transp.msb_right = 0; | |
646 | break; | |
647 | case 32: | |
648 | var->red.length = 8; | |
649 | var->red.offset = 16; | |
650 | var->red.msb_right = 0; | |
651 | ||
652 | var->green.length = 8; | |
653 | var->green.offset = 8; | |
654 | var->green.msb_right = 0; | |
655 | ||
656 | var->blue.length = 8; | |
657 | var->blue.offset = 0; | |
658 | var->blue.msb_right = 0; | |
659 | ||
660 | var->transp.length = 8; | |
661 | var->transp.offset = 24; | |
662 | var->transp.msb_right = 0; | |
663 | ||
664 | break; | |
665 | } | |
9b53a9e2 YS |
666 | |
667 | var->height = -1; | |
668 | var->width = -1; | |
669 | var->grayscale = 0; | |
670 | ||
671 | /* Copy nonstd field to/from sync for fbset usage */ | |
672 | var->sync |= var->nonstd; | |
673 | var->nonstd |= var->sync; | |
674 | ||
675 | adjust_aoi_size_position(var, info); | |
676 | return 0; | |
677 | } | |
678 | ||
679 | static void set_fix(struct fb_info *info) | |
680 | { | |
681 | struct fb_fix_screeninfo *fix = &info->fix; | |
682 | struct fb_var_screeninfo *var = &info->var; | |
683 | struct mfb_info *mfbi = info->par; | |
684 | ||
685 | strncpy(fix->id, mfbi->id, strlen(mfbi->id)); | |
686 | fix->line_length = var->xres_virtual * var->bits_per_pixel / 8; | |
687 | fix->type = FB_TYPE_PACKED_PIXELS; | |
688 | fix->accel = FB_ACCEL_NONE; | |
689 | fix->visual = FB_VISUAL_TRUECOLOR; | |
690 | fix->xpanstep = 1; | |
691 | fix->ypanstep = 1; | |
692 | } | |
693 | ||
694 | static void update_lcdc(struct fb_info *info) | |
695 | { | |
696 | struct fb_var_screeninfo *var = &info->var; | |
697 | struct mfb_info *mfbi = info->par; | |
698 | struct fsl_diu_data *machine_data = mfbi->parent; | |
699 | struct diu *hw; | |
700 | int i, j; | |
701 | char __iomem *cursor_base, *gamma_table_base; | |
702 | ||
703 | u32 temp; | |
704 | ||
705 | hw = dr.diu_reg; | |
706 | ||
707 | if (mfbi->type == MFB_TYPE_OFF) { | |
708 | fsl_diu_disable_panel(info); | |
709 | return; | |
710 | } | |
711 | ||
712 | diu_ops.set_monitor_port(machine_data->monitor_port); | |
713 | gamma_table_base = pool.gamma.vaddr; | |
714 | cursor_base = pool.cursor.vaddr; | |
715 | /* Prep for DIU init - gamma table, cursor table */ | |
716 | ||
717 | for (i = 0; i <= 2; i++) | |
4a85dc8b TT |
718 | for (j = 0; j <= 255; j++) |
719 | *gamma_table_base++ = j; | |
9b53a9e2 YS |
720 | |
721 | diu_ops.set_gamma_table(machine_data->monitor_port, pool.gamma.vaddr); | |
722 | ||
723 | pr_debug("update-lcdc: HW - %p\n Disabling DIU\n", hw); | |
724 | disable_lcdc(info); | |
725 | ||
726 | /* Program DIU registers */ | |
727 | ||
728 | out_be32(&hw->gamma, pool.gamma.paddr); | |
729 | out_be32(&hw->cursor, pool.cursor.paddr); | |
730 | ||
731 | out_be32(&hw->bgnd, 0x007F7F7F); /* BGND */ | |
732 | out_be32(&hw->bgnd_wb, 0); /* BGND_WB */ | |
733 | out_be32(&hw->disp_size, (var->yres << 16 | var->xres)); | |
734 | /* DISP SIZE */ | |
735 | pr_debug("DIU xres: %d\n", var->xres); | |
736 | pr_debug("DIU yres: %d\n", var->yres); | |
737 | ||
738 | out_be32(&hw->wb_size, 0); /* WB SIZE */ | |
739 | out_be32(&hw->wb_mem_addr, 0); /* WB MEM ADDR */ | |
740 | ||
741 | /* Horizontal and vertical configuration register */ | |
742 | temp = var->left_margin << 22 | /* BP_H */ | |
743 | var->hsync_len << 11 | /* PW_H */ | |
744 | var->right_margin; /* FP_H */ | |
745 | ||
746 | out_be32(&hw->hsyn_para, temp); | |
747 | ||
748 | temp = var->upper_margin << 22 | /* BP_V */ | |
749 | var->vsync_len << 11 | /* PW_V */ | |
750 | var->lower_margin; /* FP_V */ | |
751 | ||
752 | out_be32(&hw->vsyn_para, temp); | |
753 | ||
754 | pr_debug("DIU right_margin - %d\n", var->right_margin); | |
755 | pr_debug("DIU left_margin - %d\n", var->left_margin); | |
756 | pr_debug("DIU hsync_len - %d\n", var->hsync_len); | |
757 | pr_debug("DIU upper_margin - %d\n", var->upper_margin); | |
758 | pr_debug("DIU lower_margin - %d\n", var->lower_margin); | |
759 | pr_debug("DIU vsync_len - %d\n", var->vsync_len); | |
760 | pr_debug("DIU HSYNC - 0x%08x\n", hw->hsyn_para); | |
761 | pr_debug("DIU VSYNC - 0x%08x\n", hw->vsyn_para); | |
762 | ||
763 | diu_ops.set_pixel_clock(var->pixclock); | |
764 | ||
765 | out_be32(&hw->syn_pol, 0); /* SYNC SIGNALS POLARITY */ | |
766 | out_be32(&hw->thresholds, 0x00037800); /* The Thresholds */ | |
767 | out_be32(&hw->int_status, 0); /* INTERRUPT STATUS */ | |
768 | out_be32(&hw->plut, 0x01F5F666); | |
769 | ||
770 | /* Enable the DIU */ | |
771 | enable_lcdc(info); | |
772 | } | |
773 | ||
774 | static int map_video_memory(struct fb_info *info) | |
775 | { | |
776 | phys_addr_t phys; | |
537a1bf0 | 777 | u32 smem_len = info->fix.line_length * info->var.yres_virtual; |
9b53a9e2 YS |
778 | |
779 | pr_debug("info->var.xres_virtual = %d\n", info->var.xres_virtual); | |
780 | pr_debug("info->var.yres_virtual = %d\n", info->var.yres_virtual); | |
781 | pr_debug("info->fix.line_length = %d\n", info->fix.line_length); | |
537a1bf0 | 782 | pr_debug("MAP_VIDEO_MEMORY: smem_len = %u\n", smem_len); |
9b53a9e2 | 783 | |
537a1bf0 | 784 | info->screen_base = fsl_diu_alloc(smem_len, &phys); |
05946bce | 785 | if (info->screen_base == NULL) { |
9b53a9e2 YS |
786 | printk(KERN_ERR "Unable to allocate fb memory\n"); |
787 | return -ENOMEM; | |
788 | } | |
537a1bf0 | 789 | mutex_lock(&info->mm_lock); |
9b53a9e2 | 790 | info->fix.smem_start = (unsigned long) phys; |
537a1bf0 KH |
791 | info->fix.smem_len = smem_len; |
792 | mutex_unlock(&info->mm_lock); | |
9b53a9e2 YS |
793 | info->screen_size = info->fix.smem_len; |
794 | ||
795 | pr_debug("Allocated fb @ paddr=0x%08lx, size=%d.\n", | |
537a1bf0 | 796 | info->fix.smem_start, info->fix.smem_len); |
9b53a9e2 YS |
797 | pr_debug("screen base %p\n", info->screen_base); |
798 | ||
799 | return 0; | |
800 | } | |
801 | ||
802 | static void unmap_video_memory(struct fb_info *info) | |
803 | { | |
804 | fsl_diu_free(info->screen_base, info->fix.smem_len); | |
537a1bf0 | 805 | mutex_lock(&info->mm_lock); |
05946bce | 806 | info->screen_base = NULL; |
9b53a9e2 YS |
807 | info->fix.smem_start = 0; |
808 | info->fix.smem_len = 0; | |
537a1bf0 | 809 | mutex_unlock(&info->mm_lock); |
9b53a9e2 YS |
810 | } |
811 | ||
ae5591e3 YS |
812 | /* |
813 | * Using the fb_var_screeninfo in fb_info we set the aoi of this | |
814 | * particular framebuffer. It is a light version of fsl_diu_set_par. | |
815 | */ | |
816 | static int fsl_diu_set_aoi(struct fb_info *info) | |
817 | { | |
818 | struct fb_var_screeninfo *var = &info->var; | |
819 | struct mfb_info *mfbi = info->par; | |
820 | struct diu_ad *ad = mfbi->ad; | |
821 | ||
822 | /* AOI should not be greater than display size */ | |
823 | ad->offset_xyi = cpu_to_le32((var->yoffset << 16) | var->xoffset); | |
824 | ad->offset_xyd = cpu_to_le32((mfbi->y_aoi_d << 16) | mfbi->x_aoi_d); | |
825 | return 0; | |
826 | } | |
827 | ||
9b53a9e2 YS |
828 | /* |
829 | * Using the fb_var_screeninfo in fb_info we set the resolution of this | |
830 | * particular framebuffer. This function alters the fb_fix_screeninfo stored | |
831 | * in fb_info. It does not alter var in fb_info since we are using that | |
832 | * data. This means we depend on the data in var inside fb_info to be | |
833 | * supported by the hardware. fsl_diu_check_var is always called before | |
834 | * fsl_diu_set_par to ensure this. | |
835 | */ | |
836 | static int fsl_diu_set_par(struct fb_info *info) | |
837 | { | |
838 | unsigned long len; | |
839 | struct fb_var_screeninfo *var = &info->var; | |
840 | struct mfb_info *mfbi = info->par; | |
841 | struct fsl_diu_data *machine_data = mfbi->parent; | |
842 | struct diu_ad *ad = mfbi->ad; | |
843 | struct diu *hw; | |
844 | ||
845 | hw = dr.diu_reg; | |
846 | ||
847 | set_fix(info); | |
848 | mfbi->cursor_reset = 1; | |
849 | ||
850 | len = info->var.yres_virtual * info->fix.line_length; | |
851 | /* Alloc & dealloc each time resolution/bpp change */ | |
852 | if (len != info->fix.smem_len) { | |
853 | if (info->fix.smem_start) | |
854 | unmap_video_memory(info); | |
855 | pr_debug("SET PAR: smem_len = %d\n", info->fix.smem_len); | |
856 | ||
857 | /* Memory allocation for framebuffer */ | |
858 | if (map_video_memory(info)) { | |
859 | printk(KERN_ERR "Unable to allocate fb memory 1\n"); | |
860 | return -ENOMEM; | |
861 | } | |
862 | } | |
863 | ||
7653aaab TT |
864 | ad->pix_fmt = diu_ops.get_pixel_format(machine_data->monitor_port, |
865 | var->bits_per_pixel); | |
9b53a9e2 | 866 | ad->addr = cpu_to_le32(info->fix.smem_start); |
ae5591e3 YS |
867 | ad->src_size_g_alpha = cpu_to_le32((var->yres_virtual << 12) | |
868 | var->xres_virtual) | mfbi->g_alpha; | |
869 | /* AOI should not be greater than display size */ | |
9b53a9e2 | 870 | ad->aoi_size = cpu_to_le32((var->yres << 16) | var->xres); |
ae5591e3 | 871 | ad->offset_xyi = cpu_to_le32((var->yoffset << 16) | var->xoffset); |
9b53a9e2 YS |
872 | ad->offset_xyd = cpu_to_le32((mfbi->y_aoi_d << 16) | mfbi->x_aoi_d); |
873 | ||
874 | /* Disable chroma keying function */ | |
875 | ad->ckmax_r = 0; | |
876 | ad->ckmax_g = 0; | |
877 | ad->ckmax_b = 0; | |
878 | ||
879 | ad->ckmin_r = 255; | |
880 | ad->ckmin_g = 255; | |
881 | ad->ckmin_b = 255; | |
882 | ||
883 | if (mfbi->index == 0) | |
884 | update_lcdc(info); | |
885 | return 0; | |
886 | } | |
887 | ||
888 | static inline __u32 CNVT_TOHW(__u32 val, __u32 width) | |
889 | { | |
4a85dc8b | 890 | return ((val << width) + 0x7FFF - val) >> 16; |
9b53a9e2 YS |
891 | } |
892 | ||
893 | /* | |
894 | * Set a single color register. The values supplied have a 16 bit magnitude | |
895 | * which needs to be scaled in this function for the hardware. Things to take | |
896 | * into consideration are how many color registers, if any, are supported with | |
897 | * the current color visual. With truecolor mode no color palettes are | |
25985edc | 898 | * supported. Here a pseudo palette is created which we store the value in |
9b53a9e2 YS |
899 | * pseudo_palette in struct fb_info. For pseudocolor mode we have a limited |
900 | * color palette. | |
901 | */ | |
4a85dc8b TT |
902 | static int fsl_diu_setcolreg(unsigned int regno, unsigned int red, |
903 | unsigned int green, unsigned int blue, | |
904 | unsigned int transp, struct fb_info *info) | |
9b53a9e2 YS |
905 | { |
906 | int ret = 1; | |
907 | ||
908 | /* | |
909 | * If greyscale is true, then we convert the RGB value | |
910 | * to greyscale no matter what visual we are using. | |
911 | */ | |
912 | if (info->var.grayscale) | |
913 | red = green = blue = (19595 * red + 38470 * green + | |
914 | 7471 * blue) >> 16; | |
915 | switch (info->fix.visual) { | |
916 | case FB_VISUAL_TRUECOLOR: | |
917 | /* | |
918 | * 16-bit True Colour. We encode the RGB value | |
919 | * according to the RGB bitfield information. | |
920 | */ | |
921 | if (regno < 16) { | |
922 | u32 *pal = info->pseudo_palette; | |
923 | u32 v; | |
924 | ||
925 | red = CNVT_TOHW(red, info->var.red.length); | |
926 | green = CNVT_TOHW(green, info->var.green.length); | |
927 | blue = CNVT_TOHW(blue, info->var.blue.length); | |
928 | transp = CNVT_TOHW(transp, info->var.transp.length); | |
929 | ||
930 | v = (red << info->var.red.offset) | | |
931 | (green << info->var.green.offset) | | |
932 | (blue << info->var.blue.offset) | | |
933 | (transp << info->var.transp.offset); | |
934 | ||
935 | pal[regno] = v; | |
936 | ret = 0; | |
937 | } | |
938 | break; | |
939 | case FB_VISUAL_STATIC_PSEUDOCOLOR: | |
940 | case FB_VISUAL_PSEUDOCOLOR: | |
941 | break; | |
942 | } | |
943 | ||
944 | return ret; | |
945 | } | |
946 | ||
947 | /* | |
948 | * Pan (or wrap, depending on the `vmode' field) the display using the | |
949 | * 'xoffset' and 'yoffset' fields of the 'var' structure. If the values | |
950 | * don't fit, return -EINVAL. | |
951 | */ | |
952 | static int fsl_diu_pan_display(struct fb_var_screeninfo *var, | |
953 | struct fb_info *info) | |
954 | { | |
955 | if ((info->var.xoffset == var->xoffset) && | |
956 | (info->var.yoffset == var->yoffset)) | |
957 | return 0; /* No change, do nothing */ | |
958 | ||
959 | if (var->xoffset < 0 || var->yoffset < 0 | |
960 | || var->xoffset + info->var.xres > info->var.xres_virtual | |
961 | || var->yoffset + info->var.yres > info->var.yres_virtual) | |
962 | return -EINVAL; | |
963 | ||
964 | info->var.xoffset = var->xoffset; | |
965 | info->var.yoffset = var->yoffset; | |
966 | ||
967 | if (var->vmode & FB_VMODE_YWRAP) | |
968 | info->var.vmode |= FB_VMODE_YWRAP; | |
969 | else | |
970 | info->var.vmode &= ~FB_VMODE_YWRAP; | |
971 | ||
ae5591e3 YS |
972 | fsl_diu_set_aoi(info); |
973 | ||
9b53a9e2 YS |
974 | return 0; |
975 | } | |
976 | ||
977 | /* | |
978 | * Blank the screen if blank_mode != 0, else unblank. Return 0 if blanking | |
979 | * succeeded, != 0 if un-/blanking failed. | |
980 | * blank_mode == 2: suspend vsync | |
981 | * blank_mode == 3: suspend hsync | |
982 | * blank_mode == 4: powerdown | |
983 | */ | |
984 | static int fsl_diu_blank(int blank_mode, struct fb_info *info) | |
985 | { | |
986 | struct mfb_info *mfbi = info->par; | |
987 | ||
988 | mfbi->blank = blank_mode; | |
989 | ||
990 | switch (blank_mode) { | |
991 | case FB_BLANK_VSYNC_SUSPEND: | |
992 | case FB_BLANK_HSYNC_SUSPEND: | |
993 | /* FIXME: fixes to enable_panel and enable lcdc needed */ | |
994 | case FB_BLANK_NORMAL: | |
995 | /* fsl_diu_disable_panel(info);*/ | |
996 | break; | |
997 | case FB_BLANK_POWERDOWN: | |
998 | /* disable_lcdc(info); */ | |
999 | break; | |
1000 | case FB_BLANK_UNBLANK: | |
1001 | /* fsl_diu_enable_panel(info);*/ | |
1002 | break; | |
1003 | } | |
1004 | ||
1005 | return 0; | |
1006 | } | |
1007 | ||
1008 | static int fsl_diu_ioctl(struct fb_info *info, unsigned int cmd, | |
1009 | unsigned long arg) | |
1010 | { | |
1011 | struct mfb_info *mfbi = info->par; | |
1012 | struct diu_ad *ad = mfbi->ad; | |
1013 | struct mfb_chroma_key ck; | |
1014 | unsigned char global_alpha; | |
1015 | struct aoi_display_offset aoi_d; | |
1016 | __u32 pix_fmt; | |
1017 | void __user *buf = (void __user *)arg; | |
1018 | ||
1019 | if (!arg) | |
1020 | return -EINVAL; | |
1021 | switch (cmd) { | |
1022 | case MFB_SET_PIXFMT: | |
1023 | if (copy_from_user(&pix_fmt, buf, sizeof(pix_fmt))) | |
1024 | return -EFAULT; | |
1025 | ad->pix_fmt = pix_fmt; | |
1026 | pr_debug("Set pixel format to 0x%08x\n", ad->pix_fmt); | |
1027 | break; | |
1028 | case MFB_GET_PIXFMT: | |
1029 | pix_fmt = ad->pix_fmt; | |
1030 | if (copy_to_user(buf, &pix_fmt, sizeof(pix_fmt))) | |
1031 | return -EFAULT; | |
1032 | pr_debug("get pixel format 0x%08x\n", ad->pix_fmt); | |
1033 | break; | |
1034 | case MFB_SET_AOID: | |
1035 | if (copy_from_user(&aoi_d, buf, sizeof(aoi_d))) | |
1036 | return -EFAULT; | |
1037 | mfbi->x_aoi_d = aoi_d.x_aoi_d; | |
1038 | mfbi->y_aoi_d = aoi_d.y_aoi_d; | |
1039 | pr_debug("set AOI display offset of index %d to (%d,%d)\n", | |
1040 | mfbi->index, aoi_d.x_aoi_d, aoi_d.y_aoi_d); | |
1041 | fsl_diu_check_var(&info->var, info); | |
ae5591e3 | 1042 | fsl_diu_set_aoi(info); |
9b53a9e2 YS |
1043 | break; |
1044 | case MFB_GET_AOID: | |
1045 | aoi_d.x_aoi_d = mfbi->x_aoi_d; | |
1046 | aoi_d.y_aoi_d = mfbi->y_aoi_d; | |
1047 | if (copy_to_user(buf, &aoi_d, sizeof(aoi_d))) | |
1048 | return -EFAULT; | |
1049 | pr_debug("get AOI display offset of index %d (%d,%d)\n", | |
1050 | mfbi->index, aoi_d.x_aoi_d, aoi_d.y_aoi_d); | |
1051 | break; | |
1052 | case MFB_GET_ALPHA: | |
1053 | global_alpha = mfbi->g_alpha; | |
1054 | if (copy_to_user(buf, &global_alpha, sizeof(global_alpha))) | |
1055 | return -EFAULT; | |
1056 | pr_debug("get global alpha of index %d\n", mfbi->index); | |
1057 | break; | |
1058 | case MFB_SET_ALPHA: | |
1059 | /* set panel information */ | |
1060 | if (copy_from_user(&global_alpha, buf, sizeof(global_alpha))) | |
1061 | return -EFAULT; | |
1062 | ad->src_size_g_alpha = (ad->src_size_g_alpha & (~0xff)) | | |
1063 | (global_alpha & 0xff); | |
1064 | mfbi->g_alpha = global_alpha; | |
1065 | pr_debug("set global alpha for index %d\n", mfbi->index); | |
1066 | break; | |
1067 | case MFB_SET_CHROMA_KEY: | |
1068 | /* set panel winformation */ | |
1069 | if (copy_from_user(&ck, buf, sizeof(ck))) | |
1070 | return -EFAULT; | |
1071 | ||
1072 | if (ck.enable && | |
1073 | (ck.red_max < ck.red_min || | |
1074 | ck.green_max < ck.green_min || | |
1075 | ck.blue_max < ck.blue_min)) | |
1076 | return -EINVAL; | |
1077 | ||
1078 | if (!ck.enable) { | |
1079 | ad->ckmax_r = 0; | |
1080 | ad->ckmax_g = 0; | |
1081 | ad->ckmax_b = 0; | |
1082 | ad->ckmin_r = 255; | |
1083 | ad->ckmin_g = 255; | |
1084 | ad->ckmin_b = 255; | |
1085 | } else { | |
1086 | ad->ckmax_r = ck.red_max; | |
1087 | ad->ckmax_g = ck.green_max; | |
1088 | ad->ckmax_b = ck.blue_max; | |
1089 | ad->ckmin_r = ck.red_min; | |
1090 | ad->ckmin_g = ck.green_min; | |
1091 | ad->ckmin_b = ck.blue_min; | |
1092 | } | |
1093 | pr_debug("set chroma key\n"); | |
1094 | break; | |
1095 | case FBIOGET_GWINFO: | |
1096 | if (mfbi->type == MFB_TYPE_OFF) | |
1097 | return -ENODEV; | |
1098 | /* get graphic window information */ | |
1099 | if (copy_to_user(buf, ad, sizeof(*ad))) | |
1100 | return -EFAULT; | |
1101 | break; | |
1102 | case FBIOGET_HWCINFO: | |
1103 | pr_debug("FBIOGET_HWCINFO:0x%08x\n", FBIOGET_HWCINFO); | |
1104 | break; | |
1105 | case FBIOPUT_MODEINFO: | |
1106 | pr_debug("FBIOPUT_MODEINFO:0x%08x\n", FBIOPUT_MODEINFO); | |
1107 | break; | |
1108 | case FBIOGET_DISPINFO: | |
1109 | pr_debug("FBIOGET_DISPINFO:0x%08x\n", FBIOGET_DISPINFO); | |
1110 | break; | |
1111 | ||
1112 | default: | |
1113 | printk(KERN_ERR "Unknown ioctl command (0x%08X)\n", cmd); | |
1114 | return -ENOIOCTLCMD; | |
1115 | } | |
1116 | ||
1117 | return 0; | |
1118 | } | |
1119 | ||
1120 | /* turn on fb if count == 1 | |
1121 | */ | |
1122 | static int fsl_diu_open(struct fb_info *info, int user) | |
1123 | { | |
1124 | struct mfb_info *mfbi = info->par; | |
1125 | int res = 0; | |
1126 | ||
4b5006ec AG |
1127 | /* free boot splash memory on first /dev/fb0 open */ |
1128 | if (!mfbi->index && diu_ops.release_bootmem) | |
1129 | diu_ops.release_bootmem(); | |
1130 | ||
9b53a9e2 YS |
1131 | spin_lock(&diu_lock); |
1132 | mfbi->count++; | |
1133 | if (mfbi->count == 1) { | |
1134 | pr_debug("open plane index %d\n", mfbi->index); | |
1135 | fsl_diu_check_var(&info->var, info); | |
1136 | res = fsl_diu_set_par(info); | |
1137 | if (res < 0) | |
1138 | mfbi->count--; | |
1139 | else { | |
1140 | res = fsl_diu_enable_panel(info); | |
1141 | if (res < 0) | |
1142 | mfbi->count--; | |
1143 | } | |
1144 | } | |
1145 | ||
1146 | spin_unlock(&diu_lock); | |
1147 | return res; | |
1148 | } | |
1149 | ||
1150 | /* turn off fb if count == 0 | |
1151 | */ | |
1152 | static int fsl_diu_release(struct fb_info *info, int user) | |
1153 | { | |
1154 | struct mfb_info *mfbi = info->par; | |
1155 | int res = 0; | |
1156 | ||
1157 | spin_lock(&diu_lock); | |
1158 | mfbi->count--; | |
1159 | if (mfbi->count == 0) { | |
1160 | pr_debug("release plane index %d\n", mfbi->index); | |
1161 | res = fsl_diu_disable_panel(info); | |
1162 | if (res < 0) | |
1163 | mfbi->count++; | |
1164 | } | |
1165 | spin_unlock(&diu_lock); | |
1166 | return res; | |
1167 | } | |
1168 | ||
1169 | static struct fb_ops fsl_diu_ops = { | |
1170 | .owner = THIS_MODULE, | |
1171 | .fb_check_var = fsl_diu_check_var, | |
1172 | .fb_set_par = fsl_diu_set_par, | |
1173 | .fb_setcolreg = fsl_diu_setcolreg, | |
1174 | .fb_blank = fsl_diu_blank, | |
1175 | .fb_pan_display = fsl_diu_pan_display, | |
1176 | .fb_fillrect = cfb_fillrect, | |
1177 | .fb_copyarea = cfb_copyarea, | |
1178 | .fb_imageblit = cfb_imageblit, | |
1179 | .fb_ioctl = fsl_diu_ioctl, | |
1180 | .fb_open = fsl_diu_open, | |
1181 | .fb_release = fsl_diu_release, | |
1182 | }; | |
1183 | ||
1184 | static int init_fbinfo(struct fb_info *info) | |
1185 | { | |
1186 | struct mfb_info *mfbi = info->par; | |
1187 | ||
1188 | info->device = NULL; | |
1189 | info->var.activate = FB_ACTIVATE_NOW; | |
1190 | info->fbops = &fsl_diu_ops; | |
1191 | info->flags = FBINFO_FLAG_DEFAULT; | |
1192 | info->pseudo_palette = &mfbi->pseudo_palette; | |
1193 | ||
1194 | /* Allocate colormap */ | |
1195 | fb_alloc_cmap(&info->cmap, 16, 0); | |
1196 | return 0; | |
1197 | } | |
1198 | ||
05946bce | 1199 | static int __devinit install_fb(struct fb_info *info) |
9b53a9e2 YS |
1200 | { |
1201 | int rc; | |
1202 | struct mfb_info *mfbi = info->par; | |
1203 | const char *aoi_mode, *init_aoi_mode = "320x240"; | |
8b856f04 AG |
1204 | struct fb_videomode *db = fsl_diu_mode_db; |
1205 | unsigned int dbsize = ARRAY_SIZE(fsl_diu_mode_db); | |
1206 | int has_default_mode = 1; | |
9b53a9e2 YS |
1207 | |
1208 | if (init_fbinfo(info)) | |
1209 | return -EINVAL; | |
1210 | ||
8b856f04 AG |
1211 | if (mfbi->index == 0) { /* plane 0 */ |
1212 | if (mfbi->edid_data) { | |
1213 | /* Now build modedb from EDID */ | |
1214 | fb_edid_to_monspecs(mfbi->edid_data, &info->monspecs); | |
1215 | fb_videomode_to_modelist(info->monspecs.modedb, | |
1216 | info->monspecs.modedb_len, | |
1217 | &info->modelist); | |
1218 | db = info->monspecs.modedb; | |
1219 | dbsize = info->monspecs.modedb_len; | |
1220 | } | |
9b53a9e2 | 1221 | aoi_mode = fb_mode; |
8b856f04 | 1222 | } else { |
9b53a9e2 | 1223 | aoi_mode = init_aoi_mode; |
8b856f04 | 1224 | } |
9b53a9e2 | 1225 | pr_debug("mode used = %s\n", aoi_mode); |
8b856f04 AG |
1226 | rc = fb_find_mode(&info->var, info, aoi_mode, db, dbsize, |
1227 | &fsl_diu_default_mode, default_bpp); | |
9b53a9e2 YS |
1228 | switch (rc) { |
1229 | case 1: | |
1230 | pr_debug("using mode specified in @mode\n"); | |
1231 | break; | |
1232 | case 2: | |
1233 | pr_debug("using mode specified in @mode " | |
1234 | "with ignored refresh rate\n"); | |
1235 | break; | |
1236 | case 3: | |
1237 | pr_debug("using mode default mode\n"); | |
1238 | break; | |
1239 | case 4: | |
1240 | pr_debug("using mode from list\n"); | |
1241 | break; | |
1242 | default: | |
1243 | pr_debug("rc = %d\n", rc); | |
1244 | pr_debug("failed to find mode\n"); | |
8b856f04 AG |
1245 | /* |
1246 | * For plane 0 we continue and look into | |
1247 | * driver's internal modedb. | |
1248 | */ | |
1249 | if (mfbi->index == 0 && mfbi->edid_data) | |
1250 | has_default_mode = 0; | |
1251 | else | |
1252 | return -EINVAL; | |
9b53a9e2 YS |
1253 | break; |
1254 | } | |
1255 | ||
8b856f04 AG |
1256 | if (!has_default_mode) { |
1257 | rc = fb_find_mode(&info->var, info, aoi_mode, fsl_diu_mode_db, | |
1258 | ARRAY_SIZE(fsl_diu_mode_db), | |
1259 | &fsl_diu_default_mode, | |
1260 | default_bpp); | |
1261 | if (rc > 0 && rc < 5) | |
1262 | has_default_mode = 1; | |
1263 | } | |
1264 | ||
1265 | /* Still not found, use preferred mode from database if any */ | |
1266 | if (!has_default_mode && info->monspecs.modedb) { | |
1267 | struct fb_monspecs *specs = &info->monspecs; | |
1268 | struct fb_videomode *modedb = &specs->modedb[0]; | |
1269 | ||
1270 | /* | |
1271 | * Get preferred timing. If not found, | |
1272 | * first mode in database will be used. | |
1273 | */ | |
1274 | if (specs->misc & FB_MISC_1ST_DETAIL) { | |
1275 | int i; | |
1276 | ||
1277 | for (i = 0; i < specs->modedb_len; i++) { | |
1278 | if (specs->modedb[i].flag & FB_MODE_IS_FIRST) { | |
1279 | modedb = &specs->modedb[i]; | |
1280 | break; | |
1281 | } | |
1282 | } | |
1283 | } | |
1284 | ||
1285 | info->var.bits_per_pixel = default_bpp; | |
1286 | fb_videomode_to_var(&info->var, modedb); | |
1287 | } | |
1288 | ||
9b53a9e2 YS |
1289 | pr_debug("xres_virtual %d\n", info->var.xres_virtual); |
1290 | pr_debug("bits_per_pixel %d\n", info->var.bits_per_pixel); | |
1291 | ||
1292 | pr_debug("info->var.yres_virtual = %d\n", info->var.yres_virtual); | |
1293 | pr_debug("info->fix.line_length = %d\n", info->fix.line_length); | |
1294 | ||
1295 | if (mfbi->type == MFB_TYPE_OFF) | |
1296 | mfbi->blank = FB_BLANK_NORMAL; | |
1297 | else | |
1298 | mfbi->blank = FB_BLANK_UNBLANK; | |
1299 | ||
1300 | if (fsl_diu_check_var(&info->var, info)) { | |
1301 | printk(KERN_ERR "fb_check_var failed"); | |
1302 | fb_dealloc_cmap(&info->cmap); | |
1303 | return -EINVAL; | |
1304 | } | |
1305 | ||
9b53a9e2 YS |
1306 | if (register_framebuffer(info) < 0) { |
1307 | printk(KERN_ERR "register_framebuffer failed"); | |
1308 | unmap_video_memory(info); | |
1309 | fb_dealloc_cmap(&info->cmap); | |
1310 | return -EINVAL; | |
1311 | } | |
1312 | ||
1313 | mfbi->registered = 1; | |
1314 | printk(KERN_INFO "fb%d: %s fb device registered successfully.\n", | |
1315 | info->node, info->fix.id); | |
1316 | ||
1317 | return 0; | |
1318 | } | |
1319 | ||
05946bce | 1320 | static void uninstall_fb(struct fb_info *info) |
9b53a9e2 YS |
1321 | { |
1322 | struct mfb_info *mfbi = info->par; | |
1323 | ||
1324 | if (!mfbi->registered) | |
1325 | return; | |
1326 | ||
8b856f04 AG |
1327 | if (mfbi->index == 0) |
1328 | kfree(mfbi->edid_data); | |
1329 | ||
9b53a9e2 YS |
1330 | unregister_framebuffer(info); |
1331 | unmap_video_memory(info); | |
1332 | if (&info->cmap) | |
1333 | fb_dealloc_cmap(&info->cmap); | |
1334 | ||
1335 | mfbi->registered = 0; | |
1336 | } | |
1337 | ||
1338 | static irqreturn_t fsl_diu_isr(int irq, void *dev_id) | |
1339 | { | |
1340 | struct diu *hw = dr.diu_reg; | |
1341 | unsigned int status = in_be32(&hw->int_status); | |
1342 | ||
1343 | if (status) { | |
1344 | /* This is the workaround for underrun */ | |
1345 | if (status & INT_UNDRUN) { | |
1346 | out_be32(&hw->diu_mode, 0); | |
1347 | pr_debug("Err: DIU occurs underrun!\n"); | |
1348 | udelay(1); | |
1349 | out_be32(&hw->diu_mode, 1); | |
1350 | } | |
1351 | #if defined(CONFIG_NOT_COHERENT_CACHE) | |
1352 | else if (status & INT_VSYNC) { | |
1353 | unsigned int i; | |
4a85dc8b | 1354 | |
9b53a9e2 YS |
1355 | for (i = 0; i < coherence_data_size; |
1356 | i += d_cache_line_size) | |
1357 | __asm__ __volatile__ ( | |
1358 | "dcbz 0, %[input]" | |
1359 | ::[input]"r"(&coherence_data[i])); | |
1360 | } | |
1361 | #endif | |
1362 | return IRQ_HANDLED; | |
1363 | } | |
1364 | return IRQ_NONE; | |
1365 | } | |
1366 | ||
1367 | static int request_irq_local(int irq) | |
1368 | { | |
1369 | unsigned long status, ints; | |
1370 | struct diu *hw; | |
1371 | int ret; | |
1372 | ||
1373 | hw = dr.diu_reg; | |
1374 | ||
1375 | /* Read to clear the status */ | |
1376 | status = in_be32(&hw->int_status); | |
1377 | ||
05946bce | 1378 | ret = request_irq(irq, fsl_diu_isr, 0, "diu", NULL); |
9b53a9e2 YS |
1379 | if (ret) |
1380 | pr_info("Request diu IRQ failed.\n"); | |
1381 | else { | |
1382 | ints = INT_PARERR | INT_LS_BF_VS; | |
1383 | #if !defined(CONFIG_NOT_COHERENT_CACHE) | |
1384 | ints |= INT_VSYNC; | |
1385 | #endif | |
4a85dc8b | 1386 | |
9b53a9e2 YS |
1387 | if (dr.mode == MFB_MODE2 || dr.mode == MFB_MODE3) |
1388 | ints |= INT_VSYNC_WB; | |
1389 | ||
1390 | /* Read to clear the status */ | |
1391 | status = in_be32(&hw->int_status); | |
1392 | out_be32(&hw->int_mask, ints); | |
1393 | } | |
4a85dc8b | 1394 | |
9b53a9e2 YS |
1395 | return ret; |
1396 | } | |
1397 | ||
1398 | static void free_irq_local(int irq) | |
1399 | { | |
1400 | struct diu *hw = dr.diu_reg; | |
1401 | ||
1402 | /* Disable all LCDC interrupt */ | |
1403 | out_be32(&hw->int_mask, 0x1f); | |
1404 | ||
05946bce | 1405 | free_irq(irq, NULL); |
9b53a9e2 YS |
1406 | } |
1407 | ||
1408 | #ifdef CONFIG_PM | |
1409 | /* | |
1410 | * Power management hooks. Note that we won't be called from IRQ context, | |
1411 | * unlike the blank functions above, so we may sleep. | |
1412 | */ | |
2dc11581 | 1413 | static int fsl_diu_suspend(struct platform_device *ofdev, pm_message_t state) |
9b53a9e2 YS |
1414 | { |
1415 | struct fsl_diu_data *machine_data; | |
1416 | ||
48948a3e | 1417 | machine_data = dev_get_drvdata(&ofdev->dev); |
9b53a9e2 YS |
1418 | disable_lcdc(machine_data->fsl_diu_info[0]); |
1419 | ||
1420 | return 0; | |
1421 | } | |
1422 | ||
2dc11581 | 1423 | static int fsl_diu_resume(struct platform_device *ofdev) |
9b53a9e2 YS |
1424 | { |
1425 | struct fsl_diu_data *machine_data; | |
1426 | ||
48948a3e | 1427 | machine_data = dev_get_drvdata(&ofdev->dev); |
9b53a9e2 YS |
1428 | enable_lcdc(machine_data->fsl_diu_info[0]); |
1429 | ||
1430 | return 0; | |
1431 | } | |
1432 | ||
1433 | #else | |
1434 | #define fsl_diu_suspend NULL | |
1435 | #define fsl_diu_resume NULL | |
1436 | #endif /* CONFIG_PM */ | |
1437 | ||
1438 | /* Align to 64-bit(8-byte), 32-byte, etc. */ | |
f3791889 AV |
1439 | static int allocate_buf(struct device *dev, struct diu_addr *buf, u32 size, |
1440 | u32 bytes_align) | |
9b53a9e2 YS |
1441 | { |
1442 | u32 offset, ssize; | |
1443 | u32 mask; | |
1444 | dma_addr_t paddr = 0; | |
1445 | ||
1446 | ssize = size + bytes_align; | |
f3791889 | 1447 | buf->vaddr = dma_alloc_coherent(dev, ssize, &paddr, GFP_DMA | |
05946bce | 1448 | __GFP_ZERO); |
9b53a9e2 YS |
1449 | if (!buf->vaddr) |
1450 | return -ENOMEM; | |
1451 | ||
1452 | buf->paddr = (__u32) paddr; | |
1453 | ||
1454 | mask = bytes_align - 1; | |
1455 | offset = (u32)buf->paddr & mask; | |
1456 | if (offset) { | |
1457 | buf->offset = bytes_align - offset; | |
1458 | buf->paddr = (u32)buf->paddr + offset; | |
1459 | } else | |
1460 | buf->offset = 0; | |
4a85dc8b | 1461 | |
9b53a9e2 YS |
1462 | return 0; |
1463 | } | |
1464 | ||
f3791889 AV |
1465 | static void free_buf(struct device *dev, struct diu_addr *buf, u32 size, |
1466 | u32 bytes_align) | |
9b53a9e2 | 1467 | { |
4a85dc8b TT |
1468 | dma_free_coherent(dev, size + bytes_align, buf->vaddr, |
1469 | buf->paddr - buf->offset); | |
9b53a9e2 YS |
1470 | } |
1471 | ||
1472 | static ssize_t store_monitor(struct device *device, | |
1473 | struct device_attribute *attr, const char *buf, size_t count) | |
1474 | { | |
7653aaab | 1475 | enum fsl_diu_monitor_port old_monitor_port; |
9b53a9e2 YS |
1476 | struct fsl_diu_data *machine_data = |
1477 | container_of(attr, struct fsl_diu_data, dev_attr); | |
1478 | ||
9b53a9e2 | 1479 | old_monitor_port = machine_data->monitor_port; |
7653aaab | 1480 | machine_data->monitor_port = fsl_diu_name_to_port(buf); |
9b53a9e2 YS |
1481 | |
1482 | if (old_monitor_port != machine_data->monitor_port) { | |
1483 | /* All AOIs need adjust pixel format | |
1484 | * fsl_diu_set_par only change the pixsel format here | |
1485 | * unlikely to fail. */ | |
1486 | fsl_diu_set_par(machine_data->fsl_diu_info[0]); | |
1487 | fsl_diu_set_par(machine_data->fsl_diu_info[1]); | |
1488 | fsl_diu_set_par(machine_data->fsl_diu_info[2]); | |
1489 | fsl_diu_set_par(machine_data->fsl_diu_info[3]); | |
1490 | fsl_diu_set_par(machine_data->fsl_diu_info[4]); | |
1491 | } | |
1492 | return count; | |
1493 | } | |
1494 | ||
1495 | static ssize_t show_monitor(struct device *device, | |
1496 | struct device_attribute *attr, char *buf) | |
1497 | { | |
1498 | struct fsl_diu_data *machine_data = | |
1499 | container_of(attr, struct fsl_diu_data, dev_attr); | |
7653aaab TT |
1500 | |
1501 | switch (machine_data->monitor_port) { | |
1502 | case FSL_DIU_PORT_DVI: | |
1503 | return sprintf(buf, "DVI\n"); | |
1504 | case FSL_DIU_PORT_LVDS: | |
1505 | return sprintf(buf, "Single-link LVDS\n"); | |
1506 | case FSL_DIU_PORT_DLVDS: | |
1507 | return sprintf(buf, "Dual-link LVDS\n"); | |
1508 | } | |
1509 | ||
1510 | return 0; | |
9b53a9e2 YS |
1511 | } |
1512 | ||
28541d0f | 1513 | static int __devinit fsl_diu_probe(struct platform_device *ofdev) |
9b53a9e2 | 1514 | { |
61c7a080 | 1515 | struct device_node *np = ofdev->dev.of_node; |
9b53a9e2 YS |
1516 | struct mfb_info *mfbi; |
1517 | phys_addr_t dummy_ad_addr; | |
1518 | int ret, i, error = 0; | |
1519 | struct resource res; | |
1520 | struct fsl_diu_data *machine_data; | |
4b5006ec | 1521 | int diu_mode; |
9b53a9e2 YS |
1522 | |
1523 | machine_data = kzalloc(sizeof(struct fsl_diu_data), GFP_KERNEL); | |
1524 | if (!machine_data) | |
1525 | return -ENOMEM; | |
1526 | ||
1527 | for (i = 0; i < ARRAY_SIZE(machine_data->fsl_diu_info); i++) { | |
1528 | machine_data->fsl_diu_info[i] = | |
1529 | framebuffer_alloc(sizeof(struct mfb_info), &ofdev->dev); | |
1530 | if (!machine_data->fsl_diu_info[i]) { | |
1531 | dev_err(&ofdev->dev, "cannot allocate memory\n"); | |
1532 | ret = -ENOMEM; | |
1533 | goto error2; | |
1534 | } | |
1535 | mfbi = machine_data->fsl_diu_info[i]->par; | |
1536 | memcpy(mfbi, &mfb_template[i], sizeof(struct mfb_info)); | |
1537 | mfbi->parent = machine_data; | |
8b856f04 AG |
1538 | |
1539 | if (mfbi->index == 0) { | |
1540 | const u8 *prop; | |
1541 | int len; | |
1542 | ||
1543 | /* Get EDID */ | |
1544 | prop = of_get_property(np, "edid", &len); | |
1545 | if (prop && len == EDID_LENGTH) | |
1546 | mfbi->edid_data = kmemdup(prop, EDID_LENGTH, | |
1547 | GFP_KERNEL); | |
1548 | } | |
9b53a9e2 YS |
1549 | } |
1550 | ||
1551 | ret = of_address_to_resource(np, 0, &res); | |
1552 | if (ret) { | |
1553 | dev_err(&ofdev->dev, "could not obtain DIU address\n"); | |
1554 | goto error; | |
1555 | } | |
1556 | if (!res.start) { | |
1557 | dev_err(&ofdev->dev, "invalid DIU address\n"); | |
1558 | goto error; | |
1559 | } | |
1560 | dev_dbg(&ofdev->dev, "%s, res.start: 0x%08x\n", __func__, res.start); | |
1561 | ||
1562 | dr.diu_reg = ioremap(res.start, sizeof(struct diu)); | |
1563 | if (!dr.diu_reg) { | |
1564 | dev_err(&ofdev->dev, "Err: can't map DIU registers!\n"); | |
1565 | ret = -EFAULT; | |
1566 | goto error2; | |
1567 | } | |
1568 | ||
4b5006ec AG |
1569 | diu_mode = in_be32(&dr.diu_reg->diu_mode); |
1570 | if (diu_mode != MFB_MODE1) | |
1571 | out_be32(&dr.diu_reg->diu_mode, 0); /* disable DIU */ | |
9b53a9e2 YS |
1572 | |
1573 | /* Get the IRQ of the DIU */ | |
1574 | machine_data->irq = irq_of_parse_and_map(np, 0); | |
1575 | ||
1576 | if (!machine_data->irq) { | |
1577 | dev_err(&ofdev->dev, "could not get DIU IRQ\n"); | |
1578 | ret = -EINVAL; | |
1579 | goto error; | |
1580 | } | |
1581 | machine_data->monitor_port = monitor_port; | |
1582 | ||
1583 | /* Area descriptor memory pool aligns to 64-bit boundary */ | |
f3791889 AV |
1584 | if (allocate_buf(&ofdev->dev, &pool.ad, |
1585 | sizeof(struct diu_ad) * FSL_AOI_NUM, 8)) | |
9b53a9e2 YS |
1586 | return -ENOMEM; |
1587 | ||
1588 | /* Get memory for Gamma Table - 32-byte aligned memory */ | |
f3791889 | 1589 | if (allocate_buf(&ofdev->dev, &pool.gamma, 768, 32)) { |
9b53a9e2 YS |
1590 | ret = -ENOMEM; |
1591 | goto error; | |
1592 | } | |
1593 | ||
1594 | /* For performance, cursor bitmap buffer aligns to 32-byte boundary */ | |
f3791889 AV |
1595 | if (allocate_buf(&ofdev->dev, &pool.cursor, MAX_CURS * MAX_CURS * 2, |
1596 | 32)) { | |
9b53a9e2 YS |
1597 | ret = -ENOMEM; |
1598 | goto error; | |
1599 | } | |
1600 | ||
1601 | i = ARRAY_SIZE(machine_data->fsl_diu_info); | |
1602 | machine_data->dummy_ad = (struct diu_ad *) | |
1603 | ((u32)pool.ad.vaddr + pool.ad.offset) + i; | |
1604 | machine_data->dummy_ad->paddr = pool.ad.paddr + | |
1605 | i * sizeof(struct diu_ad); | |
1606 | machine_data->dummy_aoi_virt = fsl_diu_alloc(64, &dummy_ad_addr); | |
1607 | if (!machine_data->dummy_aoi_virt) { | |
1608 | ret = -ENOMEM; | |
1609 | goto error; | |
1610 | } | |
1611 | machine_data->dummy_ad->addr = cpu_to_le32(dummy_ad_addr); | |
1612 | machine_data->dummy_ad->pix_fmt = 0x88882317; | |
1613 | machine_data->dummy_ad->src_size_g_alpha = cpu_to_le32((4 << 12) | 4); | |
1614 | machine_data->dummy_ad->aoi_size = cpu_to_le32((4 << 16) | 2); | |
1615 | machine_data->dummy_ad->offset_xyi = 0; | |
1616 | machine_data->dummy_ad->offset_xyd = 0; | |
1617 | machine_data->dummy_ad->next_ad = 0; | |
1618 | ||
4b5006ec AG |
1619 | /* |
1620 | * Let DIU display splash screen if it was pre-initialized | |
1621 | * by the bootloader, set dummy area descriptor otherwise. | |
1622 | */ | |
1623 | if (diu_mode != MFB_MODE1) | |
1624 | out_be32(&dr.diu_reg->desc[0], machine_data->dummy_ad->paddr); | |
1625 | ||
9b53a9e2 YS |
1626 | out_be32(&dr.diu_reg->desc[1], machine_data->dummy_ad->paddr); |
1627 | out_be32(&dr.diu_reg->desc[2], machine_data->dummy_ad->paddr); | |
1628 | ||
1629 | for (i = 0; i < ARRAY_SIZE(machine_data->fsl_diu_info); i++) { | |
1630 | machine_data->fsl_diu_info[i]->fix.smem_start = 0; | |
1631 | mfbi = machine_data->fsl_diu_info[i]->par; | |
1632 | mfbi->ad = (struct diu_ad *)((u32)pool.ad.vaddr | |
1633 | + pool.ad.offset) + i; | |
1634 | mfbi->ad->paddr = pool.ad.paddr + i * sizeof(struct diu_ad); | |
1635 | ret = install_fb(machine_data->fsl_diu_info[i]); | |
1636 | if (ret) { | |
1637 | dev_err(&ofdev->dev, | |
1638 | "Failed to register framebuffer %d\n", | |
1639 | i); | |
1640 | goto error; | |
1641 | } | |
1642 | } | |
1643 | ||
1644 | if (request_irq_local(machine_data->irq)) { | |
1645 | dev_err(machine_data->fsl_diu_info[0]->dev, | |
1646 | "could not request irq for diu."); | |
1647 | goto error; | |
1648 | } | |
1649 | ||
12765517 | 1650 | sysfs_attr_init(&machine_data->dev_attr.attr); |
9b53a9e2 YS |
1651 | machine_data->dev_attr.attr.name = "monitor"; |
1652 | machine_data->dev_attr.attr.mode = S_IRUGO|S_IWUSR; | |
1653 | machine_data->dev_attr.show = show_monitor; | |
1654 | machine_data->dev_attr.store = store_monitor; | |
1655 | error = device_create_file(machine_data->fsl_diu_info[0]->dev, | |
1656 | &machine_data->dev_attr); | |
1657 | if (error) { | |
1658 | dev_err(machine_data->fsl_diu_info[0]->dev, | |
1659 | "could not create sysfs %s file\n", | |
1660 | machine_data->dev_attr.attr.name); | |
1661 | } | |
1662 | ||
1663 | dev_set_drvdata(&ofdev->dev, machine_data); | |
1664 | return 0; | |
1665 | ||
1666 | error: | |
1667 | for (i = ARRAY_SIZE(machine_data->fsl_diu_info); | |
1668 | i > 0; i--) | |
1669 | uninstall_fb(machine_data->fsl_diu_info[i - 1]); | |
1670 | if (pool.ad.vaddr) | |
f3791889 AV |
1671 | free_buf(&ofdev->dev, &pool.ad, |
1672 | sizeof(struct diu_ad) * FSL_AOI_NUM, 8); | |
9b53a9e2 | 1673 | if (pool.gamma.vaddr) |
f3791889 | 1674 | free_buf(&ofdev->dev, &pool.gamma, 768, 32); |
9b53a9e2 | 1675 | if (pool.cursor.vaddr) |
f3791889 AV |
1676 | free_buf(&ofdev->dev, &pool.cursor, MAX_CURS * MAX_CURS * 2, |
1677 | 32); | |
9b53a9e2 YS |
1678 | if (machine_data->dummy_aoi_virt) |
1679 | fsl_diu_free(machine_data->dummy_aoi_virt, 64); | |
1680 | iounmap(dr.diu_reg); | |
1681 | ||
1682 | error2: | |
1683 | for (i = 0; i < ARRAY_SIZE(machine_data->fsl_diu_info); i++) | |
1684 | if (machine_data->fsl_diu_info[i]) | |
1685 | framebuffer_release(machine_data->fsl_diu_info[i]); | |
1686 | kfree(machine_data); | |
1687 | ||
1688 | return ret; | |
1689 | } | |
1690 | ||
1691 | ||
2dc11581 | 1692 | static int fsl_diu_remove(struct platform_device *ofdev) |
9b53a9e2 YS |
1693 | { |
1694 | struct fsl_diu_data *machine_data; | |
1695 | int i; | |
1696 | ||
1697 | machine_data = dev_get_drvdata(&ofdev->dev); | |
1698 | disable_lcdc(machine_data->fsl_diu_info[0]); | |
1699 | free_irq_local(machine_data->irq); | |
1700 | for (i = ARRAY_SIZE(machine_data->fsl_diu_info); i > 0; i--) | |
1701 | uninstall_fb(machine_data->fsl_diu_info[i - 1]); | |
1702 | if (pool.ad.vaddr) | |
f3791889 AV |
1703 | free_buf(&ofdev->dev, &pool.ad, |
1704 | sizeof(struct diu_ad) * FSL_AOI_NUM, 8); | |
9b53a9e2 | 1705 | if (pool.gamma.vaddr) |
f3791889 | 1706 | free_buf(&ofdev->dev, &pool.gamma, 768, 32); |
9b53a9e2 | 1707 | if (pool.cursor.vaddr) |
f3791889 AV |
1708 | free_buf(&ofdev->dev, &pool.cursor, MAX_CURS * MAX_CURS * 2, |
1709 | 32); | |
9b53a9e2 YS |
1710 | if (machine_data->dummy_aoi_virt) |
1711 | fsl_diu_free(machine_data->dummy_aoi_virt, 64); | |
1712 | iounmap(dr.diu_reg); | |
1713 | for (i = 0; i < ARRAY_SIZE(machine_data->fsl_diu_info); i++) | |
1714 | if (machine_data->fsl_diu_info[i]) | |
1715 | framebuffer_release(machine_data->fsl_diu_info[i]); | |
1716 | kfree(machine_data); | |
1717 | ||
1718 | return 0; | |
1719 | } | |
1720 | ||
1721 | #ifndef MODULE | |
1722 | static int __init fsl_diu_setup(char *options) | |
1723 | { | |
1724 | char *opt; | |
1725 | unsigned long val; | |
1726 | ||
1727 | if (!options || !*options) | |
1728 | return 0; | |
1729 | ||
1730 | while ((opt = strsep(&options, ",")) != NULL) { | |
1731 | if (!*opt) | |
1732 | continue; | |
1733 | if (!strncmp(opt, "monitor=", 8)) { | |
7653aaab | 1734 | monitor_port = fsl_diu_name_to_port(opt + 8); |
9b53a9e2 YS |
1735 | } else if (!strncmp(opt, "bpp=", 4)) { |
1736 | if (!strict_strtoul(opt + 4, 10, &val)) | |
1737 | default_bpp = val; | |
1738 | } else | |
1739 | fb_mode = opt; | |
1740 | } | |
1741 | ||
1742 | return 0; | |
1743 | } | |
1744 | #endif | |
1745 | ||
1746 | static struct of_device_id fsl_diu_match[] = { | |
d24720a4 AG |
1747 | #ifdef CONFIG_PPC_MPC512x |
1748 | { | |
1749 | .compatible = "fsl,mpc5121-diu", | |
1750 | }, | |
1751 | #endif | |
9b53a9e2 YS |
1752 | { |
1753 | .compatible = "fsl,diu", | |
1754 | }, | |
1755 | {} | |
1756 | }; | |
1757 | MODULE_DEVICE_TABLE(of, fsl_diu_match); | |
1758 | ||
28541d0f | 1759 | static struct platform_driver fsl_diu_driver = { |
4018294b GL |
1760 | .driver = { |
1761 | .name = "fsl_diu", | |
1762 | .owner = THIS_MODULE, | |
1763 | .of_match_table = fsl_diu_match, | |
1764 | }, | |
9b53a9e2 YS |
1765 | .probe = fsl_diu_probe, |
1766 | .remove = fsl_diu_remove, | |
1767 | .suspend = fsl_diu_suspend, | |
1768 | .resume = fsl_diu_resume, | |
1769 | }; | |
1770 | ||
1771 | static int __init fsl_diu_init(void) | |
1772 | { | |
1773 | #ifdef CONFIG_NOT_COHERENT_CACHE | |
1774 | struct device_node *np; | |
1775 | const u32 *prop; | |
1776 | #endif | |
1777 | int ret; | |
1778 | #ifndef MODULE | |
1779 | char *option; | |
1780 | ||
1781 | /* | |
1782 | * For kernel boot options (in 'video=xxxfb:<options>' format) | |
1783 | */ | |
1784 | if (fb_get_options("fslfb", &option)) | |
1785 | return -ENODEV; | |
1786 | fsl_diu_setup(option); | |
7653aaab TT |
1787 | #else |
1788 | monitor_port = fsl_diu_name_to_port(monitor_string); | |
9b53a9e2 YS |
1789 | #endif |
1790 | printk(KERN_INFO "Freescale DIU driver\n"); | |
1791 | ||
1792 | #ifdef CONFIG_NOT_COHERENT_CACHE | |
1793 | np = of_find_node_by_type(NULL, "cpu"); | |
1794 | if (!np) { | |
1795 | printk(KERN_ERR "Err: can't find device node 'cpu'\n"); | |
1796 | return -ENODEV; | |
1797 | } | |
1798 | ||
1799 | prop = of_get_property(np, "d-cache-size", NULL); | |
5394ba0f JL |
1800 | if (prop == NULL) { |
1801 | of_node_put(np); | |
9b53a9e2 | 1802 | return -ENODEV; |
5394ba0f | 1803 | } |
9b53a9e2 | 1804 | |
4a85dc8b TT |
1805 | /* |
1806 | * Freescale PLRU requires 13/8 times the cache size to do a proper | |
1807 | * displacement flush | |
9b53a9e2 YS |
1808 | */ |
1809 | coherence_data_size = *prop * 13; | |
1810 | coherence_data_size /= 8; | |
1811 | ||
1812 | prop = of_get_property(np, "d-cache-line-size", NULL); | |
5394ba0f JL |
1813 | if (prop == NULL) { |
1814 | of_node_put(np); | |
9b53a9e2 | 1815 | return -ENODEV; |
5394ba0f | 1816 | } |
9b53a9e2 YS |
1817 | d_cache_line_size = *prop; |
1818 | ||
1819 | of_node_put(np); | |
1820 | coherence_data = vmalloc(coherence_data_size); | |
1821 | if (!coherence_data) | |
1822 | return -ENOMEM; | |
1823 | #endif | |
4a85dc8b | 1824 | |
28541d0f | 1825 | ret = platform_driver_register(&fsl_diu_driver); |
9b53a9e2 YS |
1826 | if (ret) { |
1827 | printk(KERN_ERR | |
1828 | "fsl-diu: failed to register platform driver\n"); | |
1829 | #if defined(CONFIG_NOT_COHERENT_CACHE) | |
1830 | vfree(coherence_data); | |
1831 | #endif | |
1832 | iounmap(dr.diu_reg); | |
1833 | } | |
1834 | return ret; | |
1835 | } | |
1836 | ||
1837 | static void __exit fsl_diu_exit(void) | |
1838 | { | |
28541d0f | 1839 | platform_driver_unregister(&fsl_diu_driver); |
9b53a9e2 YS |
1840 | #if defined(CONFIG_NOT_COHERENT_CACHE) |
1841 | vfree(coherence_data); | |
1842 | #endif | |
1843 | } | |
1844 | ||
1845 | module_init(fsl_diu_init); | |
1846 | module_exit(fsl_diu_exit); | |
1847 | ||
1848 | MODULE_AUTHOR("York Sun <yorksun@freescale.com>"); | |
1849 | MODULE_DESCRIPTION("Freescale DIU framebuffer driver"); | |
1850 | MODULE_LICENSE("GPL"); | |
1851 | ||
1852 | module_param_named(mode, fb_mode, charp, 0); | |
1853 | MODULE_PARM_DESC(mode, | |
1854 | "Specify resolution as \"<xres>x<yres>[-<bpp>][@<refresh>]\" "); | |
1855 | module_param_named(bpp, default_bpp, ulong, 0); | |
1856 | MODULE_PARM_DESC(bpp, "Specify bit-per-pixel if not specified mode"); | |
7653aaab TT |
1857 | module_param_named(monitor, monitor_string, charp, 0); |
1858 | MODULE_PARM_DESC(monitor, "Specify the monitor port " | |
1859 | "(\"dvi\", \"lvds\", or \"dlvds\") if supported by the platform"); | |
9b53a9e2 | 1860 |