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1 | /* linux/drivers/video/s3c-fb.c |
2 | * |
3 | * Copyright 2008 Openmoko Inc. |
4 | * Copyright 2008-2010 Simtec Electronics |
5 | * Ben Dooks <ben@simtec.co.uk> |
6 | * http://armlinux.simtec.co.uk/ |
7 | * |
8 | * Samsung SoC Framebuffer driver |
9 | * |
10 | * This program is free software; you can redistribute it and/or modify |
11 | * it under the terms of the GNU General Public License version 2 as |
12 | * published by the Free Software FoundatIon. |
13 | */ |
14 | |
15 | #include <linux/kernel.h> |
16 | #include <linux/module.h> |
17 | #include <linux/platform_device.h> |
18 | #include <linux/dma-mapping.h> |
19 | #include <linux/slab.h> |
20 | #include <linux/init.h> |
21 | #include <linux/clk.h> |
22 | #include <linux/fb.h> |
23 | #include <linux/io.h> |
24 | #include <linux/uaccess.h> |
25 | #include <linux/interrupt.h> |
26 | #include <linux/pm_runtime.h> |
27 | |
28 | #include <video/samsung_fimd.h> |
29 | #include <mach/map.h> |
30 | #include <plat/fb.h> |
31 | |
32 | /* This driver will export a number of framebuffer interfaces depending |
33 | * on the configuration passed in via the platform data. Each fb instance |
34 | * maps to a hardware window. Currently there is no support for runtime |
35 | * setting of the alpha-blending functions that each window has, so only |
36 | * window 0 is actually useful. |
37 | * |
38 | * Window 0 is treated specially, it is used for the basis of the LCD |
39 | * output timings and as the control for the output power-down state. |
40 | */ |
41 | |
42 | /* note, the previous use of <mach/regs-fb.h> to get platform specific data |
43 | * has been replaced by using the platform device name to pick the correct |
44 | * configuration data for the system. |
45 | */ |
46 | |
47 | #ifdef CONFIG_FB_S3C_DEBUG_REGWRITE |
48 | #undef writel |
49 | #define writel(v, r) do { \ |
50 | pr_debug("%s: %08x => %p\n", __func__, (unsigned int)v, r); \ |
51 | __raw_writel(v, r); \ |
52 | } while (0) |
53 | #endif /* FB_S3C_DEBUG_REGWRITE */ |
54 | |
55 | /* irq_flags bits */ |
56 | #define S3C_FB_VSYNC_IRQ_EN 0 |
57 | |
58 | #define VSYNC_TIMEOUT_MSEC 50 |
59 | |
60 | struct s3c_fb; |
61 | |
62 | #define VALID_BPP(x) (1 << ((x) - 1)) |
63 | |
64 | #define OSD_BASE(win, variant) ((variant).osd + ((win) * (variant).osd_stride)) |
65 | #define VIDOSD_A(win, variant) (OSD_BASE(win, variant) + 0x00) |
66 | #define VIDOSD_B(win, variant) (OSD_BASE(win, variant) + 0x04) |
67 | #define VIDOSD_C(win, variant) (OSD_BASE(win, variant) + 0x08) |
68 | #define VIDOSD_D(win, variant) (OSD_BASE(win, variant) + 0x0C) |
69 | |
70 | /** |
71 | * struct s3c_fb_variant - fb variant information |
72 | * @is_2443: Set if S3C2443/S3C2416 style hardware. |
73 | * @nr_windows: The number of windows. |
74 | * @vidtcon: The base for the VIDTCONx registers |
75 | * @wincon: The base for the WINxCON registers. |
76 | * @winmap: The base for the WINxMAP registers. |
77 | * @keycon: The abse for the WxKEYCON registers. |
78 | * @buf_start: Offset of buffer start registers. |
79 | * @buf_size: Offset of buffer size registers. |
80 | * @buf_end: Offset of buffer end registers. |
81 | * @osd: The base for the OSD registers. |
82 | * @palette: Address of palette memory, or 0 if none. |
83 | * @has_prtcon: Set if has PRTCON register. |
84 | * @has_shadowcon: Set if has SHADOWCON register. |
85 | * @has_blendcon: Set if has BLENDCON register. |
86 | * @has_clksel: Set if VIDCON0 register has CLKSEL bit. |
87 | * @has_fixvclk: Set if VIDCON1 register has FIXVCLK bits. |
88 | */ |
89 | struct s3c_fb_variant { |
90 | unsigned int is_2443:1; |
91 | unsigned short nr_windows; |
92 | unsigned int vidtcon; |
93 | unsigned short wincon; |
94 | unsigned short winmap; |
95 | unsigned short keycon; |
96 | unsigned short buf_start; |
97 | unsigned short buf_end; |
98 | unsigned short buf_size; |
99 | unsigned short osd; |
100 | unsigned short osd_stride; |
101 | unsigned short palette[S3C_FB_MAX_WIN]; |
102 | |
103 | unsigned int has_prtcon:1; |
104 | unsigned int has_shadowcon:1; |
105 | unsigned int has_blendcon:1; |
106 | unsigned int has_clksel:1; |
107 | unsigned int has_fixvclk:1; |
108 | }; |
109 | |
110 | /** |
111 | * struct s3c_fb_win_variant |
112 | * @has_osd_c: Set if has OSD C register. |
113 | * @has_osd_d: Set if has OSD D register. |
114 | * @has_osd_alpha: Set if can change alpha transparency for a window. |
115 | * @palette_sz: Size of palette in entries. |
116 | * @palette_16bpp: Set if palette is 16bits wide. |
117 | * @osd_size_off: If != 0, supports setting up OSD for a window; the appropriate |
118 | * register is located at the given offset from OSD_BASE. |
119 | * @valid_bpp: 1 bit per BPP setting to show valid bits-per-pixel. |
120 | * |
121 | * valid_bpp bit x is set if (x+1)BPP is supported. |
122 | */ |
123 | struct s3c_fb_win_variant { |
124 | unsigned int has_osd_c:1; |
125 | unsigned int has_osd_d:1; |
126 | unsigned int has_osd_alpha:1; |
127 | unsigned int palette_16bpp:1; |
128 | unsigned short osd_size_off; |
129 | unsigned short palette_sz; |
130 | u32 valid_bpp; |
131 | }; |
132 | |
133 | /** |
134 | * struct s3c_fb_driverdata - per-device type driver data for init time. |
135 | * @variant: The variant information for this driver. |
136 | * @win: The window information for each window. |
137 | */ |
138 | struct s3c_fb_driverdata { |
139 | struct s3c_fb_variant variant; |
140 | struct s3c_fb_win_variant *win[S3C_FB_MAX_WIN]; |
141 | }; |
142 | |
143 | /** |
144 | * struct s3c_fb_palette - palette information |
145 | * @r: Red bitfield. |
146 | * @g: Green bitfield. |
147 | * @b: Blue bitfield. |
148 | * @a: Alpha bitfield. |
149 | */ |
150 | struct s3c_fb_palette { |
151 | struct fb_bitfield r; |
152 | struct fb_bitfield g; |
153 | struct fb_bitfield b; |
154 | struct fb_bitfield a; |
155 | }; |
156 | |
157 | /** |
158 | * struct s3c_fb_win - per window private data for each framebuffer. |
159 | * @windata: The platform data supplied for the window configuration. |
160 | * @parent: The hardware that this window is part of. |
161 | * @fbinfo: Pointer pack to the framebuffer info for this window. |
162 | * @varint: The variant information for this window. |
163 | * @palette_buffer: Buffer/cache to hold palette entries. |
164 | * @pseudo_palette: For use in TRUECOLOUR modes for entries 0..15/ |
165 | * @index: The window number of this window. |
166 | * @palette: The bitfields for changing r/g/b into a hardware palette entry. |
167 | */ |
168 | struct s3c_fb_win { |
169 | struct s3c_fb_pd_win *windata; |
170 | struct s3c_fb *parent; |
171 | struct fb_info *fbinfo; |
172 | struct s3c_fb_palette palette; |
173 | struct s3c_fb_win_variant variant; |
174 | |
175 | u32 *palette_buffer; |
176 | u32 pseudo_palette[16]; |
177 | unsigned int index; |
178 | }; |
179 | |
180 | /** |
181 | * struct s3c_fb_vsync - vsync information |
182 | * @wait: a queue for processes waiting for vsync |
183 | * @count: vsync interrupt count |
184 | */ |
185 | struct s3c_fb_vsync { |
186 | wait_queue_head_t wait; |
187 | unsigned int count; |
188 | }; |
189 | |
190 | /** |
191 | * struct s3c_fb - overall hardware state of the hardware |
192 | * @slock: The spinlock protection for this data structure. |
193 | * @dev: The device that we bound to, for printing, etc. |
194 | * @bus_clk: The clk (hclk) feeding our interface and possibly pixclk. |
195 | * @lcd_clk: The clk (sclk) feeding pixclk. |
196 | * @regs: The mapped hardware registers. |
197 | * @variant: Variant information for this hardware. |
198 | * @enabled: A bitmask of enabled hardware windows. |
199 | * @output_on: Flag if the physical output is enabled. |
200 | * @pdata: The platform configuration data passed with the device. |
201 | * @windows: The hardware windows that have been claimed. |
202 | * @irq_no: IRQ line number |
203 | * @irq_flags: irq flags |
204 | * @vsync_info: VSYNC-related information (count, queues...) |
205 | */ |
206 | struct s3c_fb { |
207 | spinlock_t slock; |
208 | struct device *dev; |
209 | struct clk *bus_clk; |
210 | struct clk *lcd_clk; |
211 | void __iomem *regs; |
212 | struct s3c_fb_variant variant; |
213 | |
214 | unsigned char enabled; |
215 | bool output_on; |
216 | |
217 | struct s3c_fb_platdata *pdata; |
218 | struct s3c_fb_win *windows[S3C_FB_MAX_WIN]; |
219 | |
220 | int irq_no; |
221 | unsigned long irq_flags; |
222 | struct s3c_fb_vsync vsync_info; |
223 | }; |
224 | |
225 | /** |
226 | * s3c_fb_validate_win_bpp - validate the bits-per-pixel for this mode. |
227 | * @win: The device window. |
228 | * @bpp: The bit depth. |
229 | */ |
230 | static bool s3c_fb_validate_win_bpp(struct s3c_fb_win *win, unsigned int bpp) |
231 | { |
232 | return win->variant.valid_bpp & VALID_BPP(bpp); |
233 | } |
234 | |
235 | /** |
236 | * s3c_fb_check_var() - framebuffer layer request to verify a given mode. |
237 | * @var: The screen information to verify. |
238 | * @info: The framebuffer device. |
239 | * |
240 | * Framebuffer layer call to verify the given information and allow us to |
241 | * update various information depending on the hardware capabilities. |
242 | */ |
243 | static int s3c_fb_check_var(struct fb_var_screeninfo *var, |
244 | struct fb_info *info) |
245 | { |
246 | struct s3c_fb_win *win = info->par; |
247 | struct s3c_fb *sfb = win->parent; |
248 | |
249 | dev_dbg(sfb->dev, "checking parameters\n"); |
250 | |
251 | var->xres_virtual = max(var->xres_virtual, var->xres); |
252 | var->yres_virtual = max(var->yres_virtual, var->yres); |
253 | |
254 | if (!s3c_fb_validate_win_bpp(win, var->bits_per_pixel)) { |
255 | dev_dbg(sfb->dev, "win %d: unsupported bpp %d\n", |
256 | win->index, var->bits_per_pixel); |
257 | return -EINVAL; |
258 | } |
259 | |
260 | /* always ensure these are zero, for drop through cases below */ |
261 | var->transp.offset = 0; |
262 | var->transp.length = 0; |
263 | |
264 | switch (var->bits_per_pixel) { |
265 | case 1: |
266 | case 2: |
267 | case 4: |
268 | case 8: |
269 | if (sfb->variant.palette[win->index] != 0) { |
270 | /* non palletised, A:1,R:2,G:3,B:2 mode */ |
271 | var->red.offset = 5; |
272 | var->green.offset = 2; |
273 | var->blue.offset = 0; |
274 | var->red.length = 2; |
275 | var->green.length = 3; |
276 | var->blue.length = 2; |
277 | var->transp.offset = 7; |
278 | var->transp.length = 1; |
279 | } else { |
280 | var->red.offset = 0; |
281 | var->red.length = var->bits_per_pixel; |
282 | var->green = var->red; |
283 | var->blue = var->red; |
284 | } |
285 | break; |
286 | |
287 | case 19: |
288 | /* 666 with one bit alpha/transparency */ |
289 | var->transp.offset = 18; |
290 | var->transp.length = 1; |
291 | /* drop through */ |
292 | case 18: |
293 | var->bits_per_pixel = 32; |
294 | |
295 | /* 666 format */ |
296 | var->red.offset = 12; |
297 | var->green.offset = 6; |
298 | var->blue.offset = 0; |
299 | var->red.length = 6; |
300 | var->green.length = 6; |
301 | var->blue.length = 6; |
302 | break; |
303 | |
304 | case 16: |
305 | /* 16 bpp, 565 format */ |
306 | var->red.offset = 11; |
307 | var->green.offset = 5; |
308 | var->blue.offset = 0; |
309 | var->red.length = 5; |
310 | var->green.length = 6; |
311 | var->blue.length = 5; |
312 | break; |
313 | |
314 | case 32: |
315 | case 28: |
316 | case 25: |
317 | var->transp.length = var->bits_per_pixel - 24; |
318 | var->transp.offset = 24; |
319 | /* drop through */ |
320 | case 24: |
321 | /* our 24bpp is unpacked, so 32bpp */ |
322 | var->bits_per_pixel = 32; |
323 | var->red.offset = 16; |
324 | var->red.length = 8; |
325 | var->green.offset = 8; |
326 | var->green.length = 8; |
327 | var->blue.offset = 0; |
328 | var->blue.length = 8; |
329 | break; |
330 | |
331 | default: |
332 | dev_err(sfb->dev, "invalid bpp\n"); |
333 | return -EINVAL; |
334 | } |
335 | |
336 | dev_dbg(sfb->dev, "%s: verified parameters\n", __func__); |
337 | return 0; |
338 | } |
339 | |
340 | /** |
341 | * s3c_fb_calc_pixclk() - calculate the divider to create the pixel clock. |
342 | * @sfb: The hardware state. |
343 | * @pixclock: The pixel clock wanted, in picoseconds. |
344 | * |
345 | * Given the specified pixel clock, work out the necessary divider to get |
346 | * close to the output frequency. |
347 | */ |
348 | static int s3c_fb_calc_pixclk(struct s3c_fb *sfb, unsigned int pixclk) |
349 | { |
350 | unsigned long clk; |
351 | unsigned long long tmp; |
352 | unsigned int result; |
353 | |
354 | if (sfb->variant.has_clksel) |
355 | clk = clk_get_rate(sfb->bus_clk); |
356 | else |
357 | clk = clk_get_rate(sfb->lcd_clk); |
358 | |
359 | tmp = (unsigned long long)clk; |
360 | tmp *= pixclk; |
361 | |
362 | do_div(tmp, 1000000000UL); |
363 | result = (unsigned int)tmp / 1000; |
364 | |
365 | dev_dbg(sfb->dev, "pixclk=%u, clk=%lu, div=%d (%lu)\n", |
366 | pixclk, clk, result, result ? clk / result : clk); |
367 | |
368 | return result; |
369 | } |
370 | |
371 | /** |
372 | * s3c_fb_align_word() - align pixel count to word boundary |
373 | * @bpp: The number of bits per pixel |
374 | * @pix: The value to be aligned. |
375 | * |
376 | * Align the given pixel count so that it will start on an 32bit word |
377 | * boundary. |
378 | */ |
379 | static int s3c_fb_align_word(unsigned int bpp, unsigned int pix) |
380 | { |
381 | int pix_per_word; |
382 | |
383 | if (bpp > 16) |
384 | return pix; |
385 | |
386 | pix_per_word = (8 * 32) / bpp; |
387 | return ALIGN(pix, pix_per_word); |
388 | } |
389 | |
390 | /** |
391 | * vidosd_set_size() - set OSD size for a window |
392 | * |
393 | * @win: the window to set OSD size for |
394 | * @size: OSD size register value |
395 | */ |
396 | static void vidosd_set_size(struct s3c_fb_win *win, u32 size) |
397 | { |
398 | struct s3c_fb *sfb = win->parent; |
399 | |
400 | /* OSD can be set up if osd_size_off != 0 for this window */ |
401 | if (win->variant.osd_size_off) |
402 | writel(size, sfb->regs + OSD_BASE(win->index, sfb->variant) |
403 | + win->variant.osd_size_off); |
404 | } |
405 | |
406 | /** |
407 | * vidosd_set_alpha() - set alpha transparency for a window |
408 | * |
409 | * @win: the window to set OSD size for |
410 | * @alpha: alpha register value |
411 | */ |
412 | static void vidosd_set_alpha(struct s3c_fb_win *win, u32 alpha) |
413 | { |
414 | struct s3c_fb *sfb = win->parent; |
415 | |
416 | if (win->variant.has_osd_alpha) |
417 | writel(alpha, sfb->regs + VIDOSD_C(win->index, sfb->variant)); |
418 | } |
419 | |
420 | /** |
421 | * shadow_protect_win() - disable updating values from shadow registers at vsync |
422 | * |
423 | * @win: window to protect registers for |
424 | * @protect: 1 to protect (disable updates) |
425 | */ |
426 | static void shadow_protect_win(struct s3c_fb_win *win, bool protect) |
427 | { |
428 | struct s3c_fb *sfb = win->parent; |
429 | u32 reg; |
430 | |
431 | if (protect) { |
432 | if (sfb->variant.has_prtcon) { |
433 | writel(PRTCON_PROTECT, sfb->regs + PRTCON); |
434 | } else if (sfb->variant.has_shadowcon) { |
435 | reg = readl(sfb->regs + SHADOWCON); |
436 | writel(reg | SHADOWCON_WINx_PROTECT(win->index), |
437 | sfb->regs + SHADOWCON); |
438 | } |
439 | } else { |
440 | if (sfb->variant.has_prtcon) { |
441 | writel(0, sfb->regs + PRTCON); |
442 | } else if (sfb->variant.has_shadowcon) { |
443 | reg = readl(sfb->regs + SHADOWCON); |
444 | writel(reg & ~SHADOWCON_WINx_PROTECT(win->index), |
445 | sfb->regs + SHADOWCON); |
446 | } |
447 | } |
448 | } |
449 | |
450 | /** |
451 | * s3c_fb_enable() - Set the state of the main LCD output |
452 | * @sfb: The main framebuffer state. |
453 | * @enable: The state to set. |
454 | */ |
455 | static void s3c_fb_enable(struct s3c_fb *sfb, int enable) |
456 | { |
457 | u32 vidcon0 = readl(sfb->regs + VIDCON0); |
458 | |
459 | if (enable && !sfb->output_on) |
460 | pm_runtime_get_sync(sfb->dev); |
461 | |
462 | if (enable) { |
463 | vidcon0 |= VIDCON0_ENVID | VIDCON0_ENVID_F; |
464 | } else { |
465 | /* see the note in the framebuffer datasheet about |
466 | * why you cannot take both of these bits down at the |
467 | * same time. */ |
468 | |
469 | if (vidcon0 & VIDCON0_ENVID) { |
470 | vidcon0 |= VIDCON0_ENVID; |
471 | vidcon0 &= ~VIDCON0_ENVID_F; |
472 | } |
473 | } |
474 | |
475 | writel(vidcon0, sfb->regs + VIDCON0); |
476 | |
477 | if (!enable && sfb->output_on) |
478 | pm_runtime_put_sync(sfb->dev); |
479 | |
480 | sfb->output_on = enable; |
481 | } |
482 | |
483 | /** |
484 | * s3c_fb_set_par() - framebuffer request to set new framebuffer state. |
485 | * @info: The framebuffer to change. |
486 | * |
487 | * Framebuffer layer request to set a new mode for the specified framebuffer |
488 | */ |
489 | static int s3c_fb_set_par(struct fb_info *info) |
490 | { |
491 | struct fb_var_screeninfo *var = &info->var; |
492 | struct s3c_fb_win *win = info->par; |
493 | struct s3c_fb *sfb = win->parent; |
494 | void __iomem *regs = sfb->regs; |
495 | void __iomem *buf = regs; |
496 | int win_no = win->index; |
497 | u32 alpha = 0; |
498 | u32 data; |
499 | u32 pagewidth; |
500 | |
501 | dev_dbg(sfb->dev, "setting framebuffer parameters\n"); |
502 | |
503 | pm_runtime_get_sync(sfb->dev); |
504 | |
505 | shadow_protect_win(win, 1); |
506 | |
507 | switch (var->bits_per_pixel) { |
508 | case 32: |
509 | case 24: |
510 | case 16: |
511 | case 12: |
512 | info->fix.visual = FB_VISUAL_TRUECOLOR; |
513 | break; |
514 | case 8: |
515 | if (win->variant.palette_sz >= 256) |
516 | info->fix.visual = FB_VISUAL_PSEUDOCOLOR; |
517 | else |
518 | info->fix.visual = FB_VISUAL_TRUECOLOR; |
519 | break; |
520 | case 1: |
521 | info->fix.visual = FB_VISUAL_MONO01; |
522 | break; |
523 | default: |
524 | info->fix.visual = FB_VISUAL_PSEUDOCOLOR; |
525 | break; |
526 | } |
527 | |
528 | info->fix.line_length = (var->xres_virtual * var->bits_per_pixel) / 8; |
529 | |
530 | info->fix.xpanstep = info->var.xres_virtual > info->var.xres ? 1 : 0; |
531 | info->fix.ypanstep = info->var.yres_virtual > info->var.yres ? 1 : 0; |
532 | |
533 | /* disable the window whilst we update it */ |
534 | writel(0, regs + WINCON(win_no)); |
535 | |
536 | if (!sfb->output_on) |
537 | s3c_fb_enable(sfb, 1); |
538 | |
539 | /* write the buffer address */ |
540 | |
541 | /* start and end registers stride is 8 */ |
542 | buf = regs + win_no * 8; |
543 | |
544 | writel(info->fix.smem_start, buf + sfb->variant.buf_start); |
545 | |
546 | data = info->fix.smem_start + info->fix.line_length * var->yres; |
547 | writel(data, buf + sfb->variant.buf_end); |
548 | |
549 | pagewidth = (var->xres * var->bits_per_pixel) >> 3; |
550 | data = VIDW_BUF_SIZE_OFFSET(info->fix.line_length - pagewidth) | |
551 | VIDW_BUF_SIZE_PAGEWIDTH(pagewidth) | |
552 | VIDW_BUF_SIZE_OFFSET_E(info->fix.line_length - pagewidth) | |
553 | VIDW_BUF_SIZE_PAGEWIDTH_E(pagewidth); |
554 | writel(data, regs + sfb->variant.buf_size + (win_no * 4)); |
555 | |
556 | /* write 'OSD' registers to control position of framebuffer */ |
557 | |
558 | data = VIDOSDxA_TOPLEFT_X(0) | VIDOSDxA_TOPLEFT_Y(0) | |
559 | VIDOSDxA_TOPLEFT_X_E(0) | VIDOSDxA_TOPLEFT_Y_E(0); |
560 | writel(data, regs + VIDOSD_A(win_no, sfb->variant)); |
561 | |
562 | data = VIDOSDxB_BOTRIGHT_X(s3c_fb_align_word(var->bits_per_pixel, |
563 | var->xres - 1)) | |
564 | VIDOSDxB_BOTRIGHT_Y(var->yres - 1) | |
565 | VIDOSDxB_BOTRIGHT_X_E(s3c_fb_align_word(var->bits_per_pixel, |
566 | var->xres - 1)) | |
567 | VIDOSDxB_BOTRIGHT_Y_E(var->yres - 1); |
568 | |
569 | writel(data, regs + VIDOSD_B(win_no, sfb->variant)); |
570 | |
571 | data = var->xres * var->yres; |
572 | |
573 | alpha = VIDISD14C_ALPHA1_R(0xf) | |
574 | VIDISD14C_ALPHA1_G(0xf) | |
575 | VIDISD14C_ALPHA1_B(0xf); |
576 | |
577 | vidosd_set_alpha(win, alpha); |
578 | vidosd_set_size(win, data); |
579 | |
580 | /* Enable DMA channel for this window */ |
581 | if (sfb->variant.has_shadowcon) { |
582 | data = readl(sfb->regs + SHADOWCON); |
583 | data |= SHADOWCON_CHx_ENABLE(win_no); |
584 | writel(data, sfb->regs + SHADOWCON); |
585 | } |
586 | |
587 | data = WINCONx_ENWIN; |
588 | sfb->enabled |= (1 << win->index); |
589 | |
590 | /* note, since we have to round up the bits-per-pixel, we end up |
591 | * relying on the bitfield information for r/g/b/a to work out |
592 | * exactly which mode of operation is intended. */ |
593 | |
594 | switch (var->bits_per_pixel) { |
595 | case 1: |
596 | data |= WINCON0_BPPMODE_1BPP; |
597 | data |= WINCONx_BITSWP; |
598 | data |= WINCONx_BURSTLEN_4WORD; |
599 | break; |
600 | case 2: |
601 | data |= WINCON0_BPPMODE_2BPP; |
602 | data |= WINCONx_BITSWP; |
603 | data |= WINCONx_BURSTLEN_8WORD; |
604 | break; |
605 | case 4: |
606 | data |= WINCON0_BPPMODE_4BPP; |
607 | data |= WINCONx_BITSWP; |
608 | data |= WINCONx_BURSTLEN_8WORD; |
609 | break; |
610 | case 8: |
611 | if (var->transp.length != 0) |
612 | data |= WINCON1_BPPMODE_8BPP_1232; |
613 | else |
614 | data |= WINCON0_BPPMODE_8BPP_PALETTE; |
615 | data |= WINCONx_BURSTLEN_8WORD; |
616 | data |= WINCONx_BYTSWP; |
617 | break; |
618 | case 16: |
619 | if (var->transp.length != 0) |
620 | data |= WINCON1_BPPMODE_16BPP_A1555; |
621 | else |
622 | data |= WINCON0_BPPMODE_16BPP_565; |
623 | data |= WINCONx_HAWSWP; |
624 | data |= WINCONx_BURSTLEN_16WORD; |
625 | break; |
626 | case 24: |
627 | case 32: |
628 | if (var->red.length == 6) { |
629 | if (var->transp.length != 0) |
630 | data |= WINCON1_BPPMODE_19BPP_A1666; |
631 | else |
632 | data |= WINCON1_BPPMODE_18BPP_666; |
633 | } else if (var->transp.length == 1) |
634 | data |= WINCON1_BPPMODE_25BPP_A1888 |
635 | | WINCON1_BLD_PIX; |
636 | else if ((var->transp.length == 4) || |
637 | (var->transp.length == 8)) |
638 | data |= WINCON1_BPPMODE_28BPP_A4888 |
639 | | WINCON1_BLD_PIX | WINCON1_ALPHA_SEL; |
640 | else |
641 | data |= WINCON0_BPPMODE_24BPP_888; |
642 | |
643 | data |= WINCONx_WSWP; |
644 | data |= WINCONx_BURSTLEN_16WORD; |
645 | break; |
646 | } |
647 | |
648 | /* Enable the colour keying for the window below this one */ |
649 | if (win_no > 0) { |
650 | u32 keycon0_data = 0, keycon1_data = 0; |
651 | void __iomem *keycon = regs + sfb->variant.keycon; |
652 | |
653 | keycon0_data = ~(WxKEYCON0_KEYBL_EN | |
654 | WxKEYCON0_KEYEN_F | |
655 | WxKEYCON0_DIRCON) | WxKEYCON0_COMPKEY(0); |
656 | |
657 | keycon1_data = WxKEYCON1_COLVAL(0xffffff); |
658 | |
659 | keycon += (win_no - 1) * 8; |
660 | |
661 | writel(keycon0_data, keycon + WKEYCON0); |
662 | writel(keycon1_data, keycon + WKEYCON1); |
663 | } |
664 | |
665 | writel(data, regs + sfb->variant.wincon + (win_no * 4)); |
666 | writel(0x0, regs + sfb->variant.winmap + (win_no * 4)); |
667 | |
668 | /* Set alpha value width */ |
669 | if (sfb->variant.has_blendcon) { |
670 | data = readl(sfb->regs + BLENDCON); |
671 | data &= ~BLENDCON_NEW_MASK; |
672 | if (var->transp.length > 4) |
673 | data |= BLENDCON_NEW_8BIT_ALPHA_VALUE; |
674 | else |
675 | data |= BLENDCON_NEW_4BIT_ALPHA_VALUE; |
676 | writel(data, sfb->regs + BLENDCON); |
677 | } |
678 | |
679 | shadow_protect_win(win, 0); |
680 | |
681 | pm_runtime_put_sync(sfb->dev); |
682 | |
683 | return 0; |
684 | } |
685 | |
686 | /** |
687 | * s3c_fb_update_palette() - set or schedule a palette update. |
688 | * @sfb: The hardware information. |
689 | * @win: The window being updated. |
690 | * @reg: The palette index being changed. |
691 | * @value: The computed palette value. |
692 | * |
693 | * Change the value of a palette register, either by directly writing to |
694 | * the palette (this requires the palette RAM to be disconnected from the |
695 | * hardware whilst this is in progress) or schedule the update for later. |
696 | * |
697 | * At the moment, since we have no VSYNC interrupt support, we simply set |
698 | * the palette entry directly. |
699 | */ |
700 | static void s3c_fb_update_palette(struct s3c_fb *sfb, |
701 | struct s3c_fb_win *win, |
702 | unsigned int reg, |
703 | u32 value) |
704 | { |
705 | void __iomem *palreg; |
706 | u32 palcon; |
707 | |
708 | palreg = sfb->regs + sfb->variant.palette[win->index]; |
709 | |
710 | dev_dbg(sfb->dev, "%s: win %d, reg %d (%p): %08x\n", |
711 | __func__, win->index, reg, palreg, value); |
712 | |
713 | win->palette_buffer[reg] = value; |
714 | |
715 | palcon = readl(sfb->regs + WPALCON); |
716 | writel(palcon | WPALCON_PAL_UPDATE, sfb->regs + WPALCON); |
717 | |
718 | if (win->variant.palette_16bpp) |
719 | writew(value, palreg + (reg * 2)); |
720 | else |
721 | writel(value, palreg + (reg * 4)); |
722 | |
723 | writel(palcon, sfb->regs + WPALCON); |
724 | } |
725 | |
726 | static inline unsigned int chan_to_field(unsigned int chan, |
727 | struct fb_bitfield *bf) |
728 | { |
729 | chan &= 0xffff; |
730 | chan >>= 16 - bf->length; |
731 | return chan << bf->offset; |
732 | } |
733 | |
734 | /** |
735 | * s3c_fb_setcolreg() - framebuffer layer request to change palette. |
736 | * @regno: The palette index to change. |
737 | * @red: The red field for the palette data. |
738 | * @green: The green field for the palette data. |
739 | * @blue: The blue field for the palette data. |
740 | * @trans: The transparency (alpha) field for the palette data. |
741 | * @info: The framebuffer being changed. |
742 | */ |
743 | static int s3c_fb_setcolreg(unsigned regno, |
744 | unsigned red, unsigned green, unsigned blue, |
745 | unsigned transp, struct fb_info *info) |
746 | { |
747 | struct s3c_fb_win *win = info->par; |
748 | struct s3c_fb *sfb = win->parent; |
749 | unsigned int val; |
750 | |
751 | dev_dbg(sfb->dev, "%s: win %d: %d => rgb=%d/%d/%d\n", |
752 | __func__, win->index, regno, red, green, blue); |
753 | |
754 | pm_runtime_get_sync(sfb->dev); |
755 | |
756 | switch (info->fix.visual) { |
757 | case FB_VISUAL_TRUECOLOR: |
758 | /* true-colour, use pseudo-palette */ |
759 | |
760 | if (regno < 16) { |
761 | u32 *pal = info->pseudo_palette; |
762 | |
763 | val = chan_to_field(red, &info->var.red); |
764 | val |= chan_to_field(green, &info->var.green); |
765 | val |= chan_to_field(blue, &info->var.blue); |
766 | |
767 | pal[regno] = val; |
768 | } |
769 | break; |
770 | |
771 | case FB_VISUAL_PSEUDOCOLOR: |
772 | if (regno < win->variant.palette_sz) { |
773 | val = chan_to_field(red, &win->palette.r); |
774 | val |= chan_to_field(green, &win->palette.g); |
775 | val |= chan_to_field(blue, &win->palette.b); |
776 | |
777 | s3c_fb_update_palette(sfb, win, regno, val); |
778 | } |
779 | |
780 | break; |
781 | |
782 | default: |
783 | pm_runtime_put_sync(sfb->dev); |
784 | return 1; /* unknown type */ |
785 | } |
786 | |
787 | pm_runtime_put_sync(sfb->dev); |
788 | return 0; |
789 | } |
790 | |
791 | /** |
792 | * s3c_fb_blank() - blank or unblank the given window |
793 | * @blank_mode: The blank state from FB_BLANK_* |
794 | * @info: The framebuffer to blank. |
795 | * |
796 | * Framebuffer layer request to change the power state. |
797 | */ |
798 | static int s3c_fb_blank(int blank_mode, struct fb_info *info) |
799 | { |
800 | struct s3c_fb_win *win = info->par; |
801 | struct s3c_fb *sfb = win->parent; |
802 | unsigned int index = win->index; |
803 | u32 wincon; |
804 | u32 output_on = sfb->output_on; |
805 | |
806 | dev_dbg(sfb->dev, "blank mode %d\n", blank_mode); |
807 | |
808 | pm_runtime_get_sync(sfb->dev); |
809 | |
810 | wincon = readl(sfb->regs + sfb->variant.wincon + (index * 4)); |
811 | |
812 | switch (blank_mode) { |
813 | case FB_BLANK_POWERDOWN: |
814 | wincon &= ~WINCONx_ENWIN; |
815 | sfb->enabled &= ~(1 << index); |
816 | /* fall through to FB_BLANK_NORMAL */ |
817 | |
818 | case FB_BLANK_NORMAL: |
819 | /* disable the DMA and display 0x0 (black) */ |
820 | shadow_protect_win(win, 1); |
821 | writel(WINxMAP_MAP | WINxMAP_MAP_COLOUR(0x0), |
822 | sfb->regs + sfb->variant.winmap + (index * 4)); |
823 | shadow_protect_win(win, 0); |
824 | break; |
825 | |
826 | case FB_BLANK_UNBLANK: |
827 | shadow_protect_win(win, 1); |
828 | writel(0x0, sfb->regs + sfb->variant.winmap + (index * 4)); |
829 | shadow_protect_win(win, 0); |
830 | wincon |= WINCONx_ENWIN; |
831 | sfb->enabled |= (1 << index); |
832 | break; |
833 | |
834 | case FB_BLANK_VSYNC_SUSPEND: |
835 | case FB_BLANK_HSYNC_SUSPEND: |
836 | default: |
837 | pm_runtime_put_sync(sfb->dev); |
838 | return 1; |
839 | } |
840 | |
841 | shadow_protect_win(win, 1); |
842 | writel(wincon, sfb->regs + sfb->variant.wincon + (index * 4)); |
843 | |
844 | /* Check the enabled state to see if we need to be running the |
845 | * main LCD interface, as if there are no active windows then |
846 | * it is highly likely that we also do not need to output |
847 | * anything. |
848 | */ |
849 | s3c_fb_enable(sfb, sfb->enabled ? 1 : 0); |
850 | shadow_protect_win(win, 0); |
851 | |
852 | pm_runtime_put_sync(sfb->dev); |
853 | |
854 | return output_on == sfb->output_on; |
855 | } |
856 | |
857 | /** |
858 | * s3c_fb_pan_display() - Pan the display. |
859 | * |
860 | * Note that the offsets can be written to the device at any time, as their |
861 | * values are latched at each vsync automatically. This also means that only |
862 | * the last call to this function will have any effect on next vsync, but |
863 | * there is no need to sleep waiting for it to prevent tearing. |
864 | * |
865 | * @var: The screen information to verify. |
866 | * @info: The framebuffer device. |
867 | */ |
868 | static int s3c_fb_pan_display(struct fb_var_screeninfo *var, |
869 | struct fb_info *info) |
870 | { |
871 | struct s3c_fb_win *win = info->par; |
872 | struct s3c_fb *sfb = win->parent; |
873 | void __iomem *buf = sfb->regs + win->index * 8; |
874 | unsigned int start_boff, end_boff; |
875 | |
876 | pm_runtime_get_sync(sfb->dev); |
877 | |
878 | /* Offset in bytes to the start of the displayed area */ |
879 | start_boff = var->yoffset * info->fix.line_length; |
880 | /* X offset depends on the current bpp */ |
881 | if (info->var.bits_per_pixel >= 8) { |
882 | start_boff += var->xoffset * (info->var.bits_per_pixel >> 3); |
883 | } else { |
884 | switch (info->var.bits_per_pixel) { |
885 | case 4: |
886 | start_boff += var->xoffset >> 1; |
887 | break; |
888 | case 2: |
889 | start_boff += var->xoffset >> 2; |
890 | break; |
891 | case 1: |
892 | start_boff += var->xoffset >> 3; |
893 | break; |
894 | default: |
895 | dev_err(sfb->dev, "invalid bpp\n"); |
896 | pm_runtime_put_sync(sfb->dev); |
897 | return -EINVAL; |
898 | } |
899 | } |
900 | /* Offset in bytes to the end of the displayed area */ |
901 | end_boff = start_boff + info->var.yres * info->fix.line_length; |
902 | |
903 | /* Temporarily turn off per-vsync update from shadow registers until |
904 | * both start and end addresses are updated to prevent corruption */ |
905 | shadow_protect_win(win, 1); |
906 | |
907 | writel(info->fix.smem_start + start_boff, buf + sfb->variant.buf_start); |
908 | writel(info->fix.smem_start + end_boff, buf + sfb->variant.buf_end); |
909 | |
910 | shadow_protect_win(win, 0); |
911 | |
912 | pm_runtime_put_sync(sfb->dev); |
913 | return 0; |
914 | } |
915 | |
916 | /** |
917 | * s3c_fb_enable_irq() - enable framebuffer interrupts |
918 | * @sfb: main hardware state |
919 | */ |
920 | static void s3c_fb_enable_irq(struct s3c_fb *sfb) |
921 | { |
922 | void __iomem *regs = sfb->regs; |
923 | u32 irq_ctrl_reg; |
924 | |
925 | if (!test_and_set_bit(S3C_FB_VSYNC_IRQ_EN, &sfb->irq_flags)) { |
926 | /* IRQ disabled, enable it */ |
927 | irq_ctrl_reg = readl(regs + VIDINTCON0); |
928 | |
929 | irq_ctrl_reg |= VIDINTCON0_INT_ENABLE; |
930 | irq_ctrl_reg |= VIDINTCON0_INT_FRAME; |
931 | |
932 | irq_ctrl_reg &= ~VIDINTCON0_FRAMESEL0_MASK; |
933 | irq_ctrl_reg |= VIDINTCON0_FRAMESEL0_VSYNC; |
934 | irq_ctrl_reg &= ~VIDINTCON0_FRAMESEL1_MASK; |
935 | irq_ctrl_reg |= VIDINTCON0_FRAMESEL1_NONE; |
936 | |
937 | writel(irq_ctrl_reg, regs + VIDINTCON0); |
938 | } |
939 | } |
940 | |
941 | /** |
942 | * s3c_fb_disable_irq() - disable framebuffer interrupts |
943 | * @sfb: main hardware state |
944 | */ |
945 | static void s3c_fb_disable_irq(struct s3c_fb *sfb) |
946 | { |
947 | void __iomem *regs = sfb->regs; |
948 | u32 irq_ctrl_reg; |
949 | |
950 | if (test_and_clear_bit(S3C_FB_VSYNC_IRQ_EN, &sfb->irq_flags)) { |
951 | /* IRQ enabled, disable it */ |
952 | irq_ctrl_reg = readl(regs + VIDINTCON0); |
953 | |
954 | irq_ctrl_reg &= ~VIDINTCON0_INT_FRAME; |
955 | irq_ctrl_reg &= ~VIDINTCON0_INT_ENABLE; |
956 | |
957 | writel(irq_ctrl_reg, regs + VIDINTCON0); |
958 | } |
959 | } |
960 | |
961 | static irqreturn_t s3c_fb_irq(int irq, void *dev_id) |
962 | { |
963 | struct s3c_fb *sfb = dev_id; |
964 | void __iomem *regs = sfb->regs; |
965 | u32 irq_sts_reg; |
966 | |
967 | spin_lock(&sfb->slock); |
968 | |
969 | irq_sts_reg = readl(regs + VIDINTCON1); |
970 | |
971 | if (irq_sts_reg & VIDINTCON1_INT_FRAME) { |
972 | |
973 | /* VSYNC interrupt, accept it */ |
974 | writel(VIDINTCON1_INT_FRAME, regs + VIDINTCON1); |
975 | |
976 | sfb->vsync_info.count++; |
977 | wake_up_interruptible(&sfb->vsync_info.wait); |
978 | } |
979 | |
980 | /* We only support waiting for VSYNC for now, so it's safe |
981 | * to always disable irqs here. |
982 | */ |
983 | s3c_fb_disable_irq(sfb); |
984 | |
985 | spin_unlock(&sfb->slock); |
986 | return IRQ_HANDLED; |
987 | } |
988 | |
989 | /** |
990 | * s3c_fb_wait_for_vsync() - sleep until next VSYNC interrupt or timeout |
991 | * @sfb: main hardware state |
992 | * @crtc: head index. |
993 | */ |
994 | static int s3c_fb_wait_for_vsync(struct s3c_fb *sfb, u32 crtc) |
995 | { |
996 | unsigned long count; |
997 | int ret; |
998 | |
999 | if (crtc != 0) |
1000 | return -ENODEV; |
1001 | |
1002 | pm_runtime_get_sync(sfb->dev); |
1003 | |
1004 | count = sfb->vsync_info.count; |
1005 | s3c_fb_enable_irq(sfb); |
1006 | ret = wait_event_interruptible_timeout(sfb->vsync_info.wait, |
1007 | count != sfb->vsync_info.count, |
1008 | msecs_to_jiffies(VSYNC_TIMEOUT_MSEC)); |
1009 | |
1010 | pm_runtime_put_sync(sfb->dev); |
1011 | |
1012 | if (ret == 0) |
1013 | return -ETIMEDOUT; |
1014 | |
1015 | return 0; |
1016 | } |
1017 | |
1018 | static int s3c_fb_ioctl(struct fb_info *info, unsigned int cmd, |
1019 | unsigned long arg) |
1020 | { |
1021 | struct s3c_fb_win *win = info->par; |
1022 | struct s3c_fb *sfb = win->parent; |
1023 | int ret; |
1024 | u32 crtc; |
1025 | |
1026 | switch (cmd) { |
1027 | case FBIO_WAITFORVSYNC: |
1028 | if (get_user(crtc, (u32 __user *)arg)) { |
1029 | ret = -EFAULT; |
1030 | break; |
1031 | } |
1032 | |
1033 | ret = s3c_fb_wait_for_vsync(sfb, crtc); |
1034 | break; |
1035 | default: |
1036 | ret = -ENOTTY; |
1037 | } |
1038 | |
1039 | return ret; |
1040 | } |
1041 | |
1042 | static struct fb_ops s3c_fb_ops = { |
1043 | .owner = THIS_MODULE, |
1044 | .fb_check_var = s3c_fb_check_var, |
1045 | .fb_set_par = s3c_fb_set_par, |
1046 | .fb_blank = s3c_fb_blank, |
1047 | .fb_setcolreg = s3c_fb_setcolreg, |
1048 | .fb_fillrect = cfb_fillrect, |
1049 | .fb_copyarea = cfb_copyarea, |
1050 | .fb_imageblit = cfb_imageblit, |
1051 | .fb_pan_display = s3c_fb_pan_display, |
1052 | .fb_ioctl = s3c_fb_ioctl, |
1053 | }; |
1054 | |
1055 | /** |
1056 | * s3c_fb_missing_pixclock() - calculates pixel clock |
1057 | * @mode: The video mode to change. |
1058 | * |
1059 | * Calculate the pixel clock when none has been given through platform data. |
1060 | */ |
1061 | static void s3c_fb_missing_pixclock(struct fb_videomode *mode) |
1062 | { |
1063 | u64 pixclk = 1000000000000ULL; |
1064 | u32 div; |
1065 | |
1066 | div = mode->left_margin + mode->hsync_len + mode->right_margin + |
1067 | mode->xres; |
1068 | div *= mode->upper_margin + mode->vsync_len + mode->lower_margin + |
1069 | mode->yres; |
1070 | div *= mode->refresh ? : 60; |
1071 | |
1072 | do_div(pixclk, div); |
1073 | |
1074 | mode->pixclock = pixclk; |
1075 | } |
1076 | |
1077 | /** |
1078 | * s3c_fb_alloc_memory() - allocate display memory for framebuffer window |
1079 | * @sfb: The base resources for the hardware. |
1080 | * @win: The window to initialise memory for. |
1081 | * |
1082 | * Allocate memory for the given framebuffer. |
1083 | */ |
1084 | static int s3c_fb_alloc_memory(struct s3c_fb *sfb, struct s3c_fb_win *win) |
1085 | { |
1086 | struct s3c_fb_pd_win *windata = win->windata; |
1087 | unsigned int real_size, virt_size, size; |
1088 | struct fb_info *fbi = win->fbinfo; |
1089 | dma_addr_t map_dma; |
1090 | |
1091 | dev_dbg(sfb->dev, "allocating memory for display\n"); |
1092 | |
1093 | real_size = windata->xres * windata->yres; |
1094 | virt_size = windata->virtual_x * windata->virtual_y; |
1095 | |
1096 | dev_dbg(sfb->dev, "real_size=%u (%u.%u), virt_size=%u (%u.%u)\n", |
1097 | real_size, windata->xres, windata->yres, |
1098 | virt_size, windata->virtual_x, windata->virtual_y); |
1099 | |
1100 | size = (real_size > virt_size) ? real_size : virt_size; |
1101 | size *= (windata->max_bpp > 16) ? 32 : windata->max_bpp; |
1102 | size /= 8; |
1103 | |
1104 | fbi->fix.smem_len = size; |
1105 | size = PAGE_ALIGN(size); |
1106 | |
1107 | dev_dbg(sfb->dev, "want %u bytes for window\n", size); |
1108 | |
1109 | fbi->screen_base = dma_alloc_writecombine(sfb->dev, size, |
1110 | &map_dma, GFP_KERNEL); |
1111 | if (!fbi->screen_base) |
1112 | return -ENOMEM; |
1113 | |
1114 | dev_dbg(sfb->dev, "mapped %x to %p\n", |
1115 | (unsigned int)map_dma, fbi->screen_base); |
1116 | |
1117 | memset(fbi->screen_base, 0x0, size); |
1118 | fbi->fix.smem_start = map_dma; |
1119 | |
1120 | return 0; |
1121 | } |
1122 | |
1123 | /** |
1124 | * s3c_fb_free_memory() - free the display memory for the given window |
1125 | * @sfb: The base resources for the hardware. |
1126 | * @win: The window to free the display memory for. |
1127 | * |
1128 | * Free the display memory allocated by s3c_fb_alloc_memory(). |
1129 | */ |
1130 | static void s3c_fb_free_memory(struct s3c_fb *sfb, struct s3c_fb_win *win) |
1131 | { |
1132 | struct fb_info *fbi = win->fbinfo; |
1133 | |
1134 | if (fbi->screen_base) |
1135 | dma_free_writecombine(sfb->dev, PAGE_ALIGN(fbi->fix.smem_len), |
1136 | fbi->screen_base, fbi->fix.smem_start); |
1137 | } |
1138 | |
1139 | /** |
1140 | * s3c_fb_release_win() - release resources for a framebuffer window. |
1141 | * @win: The window to cleanup the resources for. |
1142 | * |
1143 | * Release the resources that where claimed for the hardware window, |
1144 | * such as the framebuffer instance and any memory claimed for it. |
1145 | */ |
1146 | static void s3c_fb_release_win(struct s3c_fb *sfb, struct s3c_fb_win *win) |
1147 | { |
1148 | u32 data; |
1149 | |
1150 | if (win->fbinfo) { |
1151 | if (sfb->variant.has_shadowcon) { |
1152 | data = readl(sfb->regs + SHADOWCON); |
1153 | data &= ~SHADOWCON_CHx_ENABLE(win->index); |
1154 | data &= ~SHADOWCON_CHx_LOCAL_ENABLE(win->index); |
1155 | writel(data, sfb->regs + SHADOWCON); |
1156 | } |
1157 | unregister_framebuffer(win->fbinfo); |
1158 | if (win->fbinfo->cmap.len) |
1159 | fb_dealloc_cmap(&win->fbinfo->cmap); |
1160 | s3c_fb_free_memory(sfb, win); |
1161 | framebuffer_release(win->fbinfo); |
1162 | } |
1163 | } |
1164 | |
1165 | /** |
1166 | * s3c_fb_probe_win() - register an hardware window |
1167 | * @sfb: The base resources for the hardware |
1168 | * @variant: The variant information for this window. |
1169 | * @res: Pointer to where to place the resultant window. |
1170 | * |
1171 | * Allocate and do the basic initialisation for one of the hardware's graphics |
1172 | * windows. |
1173 | */ |
1174 | static int s3c_fb_probe_win(struct s3c_fb *sfb, unsigned int win_no, |
1175 | struct s3c_fb_win_variant *variant, |
1176 | struct s3c_fb_win **res) |
1177 | { |
1178 | struct fb_var_screeninfo *var; |
1179 | struct fb_videomode initmode; |
1180 | struct s3c_fb_pd_win *windata; |
1181 | struct s3c_fb_win *win; |
1182 | struct fb_info *fbinfo; |
1183 | int palette_size; |
1184 | int ret; |
1185 | |
1186 | dev_dbg(sfb->dev, "probing window %d, variant %p\n", win_no, variant); |
1187 | |
1188 | init_waitqueue_head(&sfb->vsync_info.wait); |
1189 | |
1190 | palette_size = variant->palette_sz * 4; |
1191 | |
1192 | fbinfo = framebuffer_alloc(sizeof(struct s3c_fb_win) + |
1193 | palette_size * sizeof(u32), sfb->dev); |
1194 | if (!fbinfo) { |
1195 | dev_err(sfb->dev, "failed to allocate framebuffer\n"); |
1196 | return -ENOENT; |
1197 | } |
1198 | |
1199 | windata = sfb->pdata->win[win_no]; |
1200 | initmode = *sfb->pdata->vtiming; |
1201 | |
1202 | WARN_ON(windata->max_bpp == 0); |
1203 | WARN_ON(windata->xres == 0); |
1204 | WARN_ON(windata->yres == 0); |
1205 | |
1206 | win = fbinfo->par; |
1207 | *res = win; |
1208 | var = &fbinfo->var; |
1209 | win->variant = *variant; |
1210 | win->fbinfo = fbinfo; |
1211 | win->parent = sfb; |
1212 | win->windata = windata; |
1213 | win->index = win_no; |
1214 | win->palette_buffer = (u32 *)(win + 1); |
1215 | |
1216 | ret = s3c_fb_alloc_memory(sfb, win); |
1217 | if (ret) { |
1218 | dev_err(sfb->dev, "failed to allocate display memory\n"); |
1219 | return ret; |
1220 | } |
1221 | |
1222 | /* setup the r/b/g positions for the window's palette */ |
1223 | if (win->variant.palette_16bpp) { |
1224 | /* Set RGB 5:6:5 as default */ |
1225 | win->palette.r.offset = 11; |
1226 | win->palette.r.length = 5; |
1227 | win->palette.g.offset = 5; |
1228 | win->palette.g.length = 6; |
1229 | win->palette.b.offset = 0; |
1230 | win->palette.b.length = 5; |
1231 | |
1232 | } else { |
1233 | /* Set 8bpp or 8bpp and 1bit alpha */ |
1234 | win->palette.r.offset = 16; |
1235 | win->palette.r.length = 8; |
1236 | win->palette.g.offset = 8; |
1237 | win->palette.g.length = 8; |
1238 | win->palette.b.offset = 0; |
1239 | win->palette.b.length = 8; |
1240 | } |
1241 | |
1242 | /* setup the initial video mode from the window */ |
1243 | initmode.xres = windata->xres; |
1244 | initmode.yres = windata->yres; |
1245 | fb_videomode_to_var(&fbinfo->var, &initmode); |
1246 | |
1247 | fbinfo->fix.type = FB_TYPE_PACKED_PIXELS; |
1248 | fbinfo->fix.accel = FB_ACCEL_NONE; |
1249 | fbinfo->var.activate = FB_ACTIVATE_NOW; |
1250 | fbinfo->var.vmode = FB_VMODE_NONINTERLACED; |
1251 | fbinfo->var.bits_per_pixel = windata->default_bpp; |
1252 | fbinfo->fbops = &s3c_fb_ops; |
1253 | fbinfo->flags = FBINFO_FLAG_DEFAULT; |
1254 | fbinfo->pseudo_palette = &win->pseudo_palette; |
1255 | |
1256 | /* prepare to actually start the framebuffer */ |
1257 | |
1258 | ret = s3c_fb_check_var(&fbinfo->var, fbinfo); |
1259 | if (ret < 0) { |
1260 | dev_err(sfb->dev, "check_var failed on initial video params\n"); |
1261 | return ret; |
1262 | } |
1263 | |
1264 | /* create initial colour map */ |
1265 | |
1266 | ret = fb_alloc_cmap(&fbinfo->cmap, win->variant.palette_sz, 1); |
1267 | if (ret == 0) |
1268 | fb_set_cmap(&fbinfo->cmap, fbinfo); |
1269 | else |
1270 | dev_err(sfb->dev, "failed to allocate fb cmap\n"); |
1271 | |
1272 | s3c_fb_set_par(fbinfo); |
1273 | |
1274 | dev_dbg(sfb->dev, "about to register framebuffer\n"); |
1275 | |
1276 | /* run the check_var and set_par on our configuration. */ |
1277 | |
1278 | ret = register_framebuffer(fbinfo); |
1279 | if (ret < 0) { |
1280 | dev_err(sfb->dev, "failed to register framebuffer\n"); |
1281 | return ret; |
1282 | } |
1283 | |
1284 | dev_info(sfb->dev, "window %d: fb %s\n", win_no, fbinfo->fix.id); |
1285 | |
1286 | return 0; |
1287 | } |
1288 | |
1289 | /** |
1290 | * s3c_fb_set_rgb_timing() - set video timing for rgb interface. |
1291 | * @sfb: The base resources for the hardware. |
1292 | * |
1293 | * Set horizontal and vertical lcd rgb interface timing. |
1294 | */ |
1295 | static void s3c_fb_set_rgb_timing(struct s3c_fb *sfb) |
1296 | { |
1297 | struct fb_videomode *vmode = sfb->pdata->vtiming; |
1298 | void __iomem *regs = sfb->regs; |
1299 | int clkdiv; |
1300 | u32 data; |
1301 | |
1302 | if (!vmode->pixclock) |
1303 | s3c_fb_missing_pixclock(vmode); |
1304 | |
1305 | clkdiv = s3c_fb_calc_pixclk(sfb, vmode->pixclock); |
1306 | |
1307 | data = sfb->pdata->vidcon0; |
1308 | data &= ~(VIDCON0_CLKVAL_F_MASK | VIDCON0_CLKDIR); |
1309 | |
1310 | if (clkdiv > 1) |
1311 | data |= VIDCON0_CLKVAL_F(clkdiv-1) | VIDCON0_CLKDIR; |
1312 | else |
1313 | data &= ~VIDCON0_CLKDIR; /* 1:1 clock */ |
1314 | |
1315 | if (sfb->variant.is_2443) |
1316 | data |= (1 << 5); |
1317 | writel(data, regs + VIDCON0); |
1318 | |
1319 | data = VIDTCON0_VBPD(vmode->upper_margin - 1) | |
1320 | VIDTCON0_VFPD(vmode->lower_margin - 1) | |
1321 | VIDTCON0_VSPW(vmode->vsync_len - 1); |
1322 | writel(data, regs + sfb->variant.vidtcon); |
1323 | |
1324 | data = VIDTCON1_HBPD(vmode->left_margin - 1) | |
1325 | VIDTCON1_HFPD(vmode->right_margin - 1) | |
1326 | VIDTCON1_HSPW(vmode->hsync_len - 1); |
1327 | writel(data, regs + sfb->variant.vidtcon + 4); |
1328 | |
1329 | data = VIDTCON2_LINEVAL(vmode->yres - 1) | |
1330 | VIDTCON2_HOZVAL(vmode->xres - 1) | |
1331 | VIDTCON2_LINEVAL_E(vmode->yres - 1) | |
1332 | VIDTCON2_HOZVAL_E(vmode->xres - 1); |
1333 | writel(data, regs + sfb->variant.vidtcon + 8); |
1334 | } |
1335 | |
1336 | /** |
1337 | * s3c_fb_clear_win() - clear hardware window registers. |
1338 | * @sfb: The base resources for the hardware. |
1339 | * @win: The window to process. |
1340 | * |
1341 | * Reset the specific window registers to a known state. |
1342 | */ |
1343 | static void s3c_fb_clear_win(struct s3c_fb *sfb, int win) |
1344 | { |
1345 | void __iomem *regs = sfb->regs; |
1346 | u32 reg; |
1347 | |
1348 | writel(0, regs + sfb->variant.wincon + (win * 4)); |
1349 | writel(0, regs + VIDOSD_A(win, sfb->variant)); |
1350 | writel(0, regs + VIDOSD_B(win, sfb->variant)); |
1351 | writel(0, regs + VIDOSD_C(win, sfb->variant)); |
1352 | |
1353 | if (sfb->variant.has_shadowcon) { |
1354 | reg = readl(sfb->regs + SHADOWCON); |
1355 | reg &= ~(SHADOWCON_WINx_PROTECT(win) | |
1356 | SHADOWCON_CHx_ENABLE(win) | |
1357 | SHADOWCON_CHx_LOCAL_ENABLE(win)); |
1358 | writel(reg, sfb->regs + SHADOWCON); |
1359 | } |
1360 | } |
1361 | |
1362 | static int s3c_fb_probe(struct platform_device *pdev) |
1363 | { |
1364 | const struct platform_device_id *platid; |
1365 | struct s3c_fb_driverdata *fbdrv; |
1366 | struct device *dev = &pdev->dev; |
1367 | struct s3c_fb_platdata *pd; |
1368 | struct s3c_fb *sfb; |
1369 | struct resource *res; |
1370 | int win; |
1371 | int ret = 0; |
1372 | u32 reg; |
1373 | |
1374 | platid = platform_get_device_id(pdev); |
1375 | fbdrv = (struct s3c_fb_driverdata *)platid->driver_data; |
1376 | |
1377 | if (fbdrv->variant.nr_windows > S3C_FB_MAX_WIN) { |
1378 | dev_err(dev, "too many windows, cannot attach\n"); |
1379 | return -EINVAL; |
1380 | } |
1381 | |
1382 | pd = pdev->dev.platform_data; |
1383 | if (!pd) { |
1384 | dev_err(dev, "no platform data specified\n"); |
1385 | return -EINVAL; |
1386 | } |
1387 | |
1388 | sfb = devm_kzalloc(dev, sizeof(struct s3c_fb), GFP_KERNEL); |
1389 | if (!sfb) { |
1390 | dev_err(dev, "no memory for framebuffers\n"); |
1391 | return -ENOMEM; |
1392 | } |
1393 | |
1394 | dev_dbg(dev, "allocate new framebuffer %p\n", sfb); |
1395 | |
1396 | sfb->dev = dev; |
1397 | sfb->pdata = pd; |
1398 | sfb->variant = fbdrv->variant; |
1399 | |
1400 | spin_lock_init(&sfb->slock); |
1401 | |
1402 | sfb->bus_clk = devm_clk_get(dev, "lcd"); |
1403 | if (IS_ERR(sfb->bus_clk)) { |
1404 | dev_err(dev, "failed to get bus clock\n"); |
1405 | return PTR_ERR(sfb->bus_clk); |
1406 | } |
1407 | |
1408 | clk_prepare_enable(sfb->bus_clk); |
1409 | |
1410 | if (!sfb->variant.has_clksel) { |
1411 | sfb->lcd_clk = devm_clk_get(dev, "sclk_fimd"); |
1412 | if (IS_ERR(sfb->lcd_clk)) { |
1413 | dev_err(dev, "failed to get lcd clock\n"); |
1414 | ret = PTR_ERR(sfb->lcd_clk); |
1415 | goto err_bus_clk; |
1416 | } |
1417 | |
1418 | clk_prepare_enable(sfb->lcd_clk); |
1419 | } |
1420 | |
1421 | pm_runtime_enable(sfb->dev); |
1422 | |
1423 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
1424 | sfb->regs = devm_ioremap_resource(dev, res); |
1425 | if (IS_ERR(sfb->regs)) { |
1426 | ret = PTR_ERR(sfb->regs); |
1427 | goto err_lcd_clk; |
1428 | } |
1429 | |
1430 | res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); |
1431 | if (!res) { |
1432 | dev_err(dev, "failed to acquire irq resource\n"); |
1433 | ret = -ENOENT; |
1434 | goto err_lcd_clk; |
1435 | } |
1436 | sfb->irq_no = res->start; |
1437 | ret = devm_request_irq(dev, sfb->irq_no, s3c_fb_irq, |
1438 | 0, "s3c_fb", sfb); |
1439 | if (ret) { |
1440 | dev_err(dev, "irq request failed\n"); |
1441 | goto err_lcd_clk; |
1442 | } |
1443 | |
1444 | dev_dbg(dev, "got resources (regs %p), probing windows\n", sfb->regs); |
1445 | |
1446 | platform_set_drvdata(pdev, sfb); |
1447 | pm_runtime_get_sync(sfb->dev); |
1448 | |
1449 | /* setup gpio and output polarity controls */ |
1450 | |
1451 | pd->setup_gpio(); |
1452 | |
1453 | writel(pd->vidcon1, sfb->regs + VIDCON1); |
1454 | |
1455 | /* set video clock running at under-run */ |
1456 | if (sfb->variant.has_fixvclk) { |
1457 | reg = readl(sfb->regs + VIDCON1); |
1458 | reg &= ~VIDCON1_VCLK_MASK; |
1459 | reg |= VIDCON1_VCLK_RUN; |
1460 | writel(reg, sfb->regs + VIDCON1); |
1461 | } |
1462 | |
1463 | /* zero all windows before we do anything */ |
1464 | |
1465 | for (win = 0; win < fbdrv->variant.nr_windows; win++) |
1466 | s3c_fb_clear_win(sfb, win); |
1467 | |
1468 | /* initialise colour key controls */ |
1469 | for (win = 0; win < (fbdrv->variant.nr_windows - 1); win++) { |
1470 | void __iomem *regs = sfb->regs + sfb->variant.keycon; |
1471 | |
1472 | regs += (win * 8); |
1473 | writel(0xffffff, regs + WKEYCON0); |
1474 | writel(0xffffff, regs + WKEYCON1); |
1475 | } |
1476 | |
1477 | s3c_fb_set_rgb_timing(sfb); |
1478 | |
1479 | /* we have the register setup, start allocating framebuffers */ |
1480 | |
1481 | for (win = 0; win < fbdrv->variant.nr_windows; win++) { |
1482 | if (!pd->win[win]) |
1483 | continue; |
1484 | |
1485 | ret = s3c_fb_probe_win(sfb, win, fbdrv->win[win], |
1486 | &sfb->windows[win]); |
1487 | if (ret < 0) { |
1488 | dev_err(dev, "failed to create window %d\n", win); |
1489 | for (; win >= 0; win--) |
1490 | s3c_fb_release_win(sfb, sfb->windows[win]); |
1491 | goto err_pm_runtime; |
1492 | } |
1493 | } |
1494 | |
1495 | platform_set_drvdata(pdev, sfb); |
1496 | pm_runtime_put_sync(sfb->dev); |
1497 | |
1498 | return 0; |
1499 | |
1500 | err_pm_runtime: |
1501 | pm_runtime_put_sync(sfb->dev); |
1502 | |
1503 | err_lcd_clk: |
1504 | pm_runtime_disable(sfb->dev); |
1505 | |
1506 | if (!sfb->variant.has_clksel) |
1507 | clk_disable_unprepare(sfb->lcd_clk); |
1508 | |
1509 | err_bus_clk: |
1510 | clk_disable_unprepare(sfb->bus_clk); |
1511 | |
1512 | return ret; |
1513 | } |
1514 | |
1515 | /** |
1516 | * s3c_fb_remove() - Cleanup on module finalisation |
1517 | * @pdev: The platform device we are bound to. |
1518 | * |
1519 | * Shutdown and then release all the resources that the driver allocated |
1520 | * on initialisation. |
1521 | */ |
1522 | static int s3c_fb_remove(struct platform_device *pdev) |
1523 | { |
1524 | struct s3c_fb *sfb = platform_get_drvdata(pdev); |
1525 | int win; |
1526 | |
1527 | pm_runtime_get_sync(sfb->dev); |
1528 | |
1529 | for (win = 0; win < S3C_FB_MAX_WIN; win++) |
1530 | if (sfb->windows[win]) |
1531 | s3c_fb_release_win(sfb, sfb->windows[win]); |
1532 | |
1533 | if (!sfb->variant.has_clksel) |
1534 | clk_disable_unprepare(sfb->lcd_clk); |
1535 | |
1536 | clk_disable_unprepare(sfb->bus_clk); |
1537 | |
1538 | pm_runtime_put_sync(sfb->dev); |
1539 | pm_runtime_disable(sfb->dev); |
1540 | |
1541 | return 0; |
1542 | } |
1543 | |
1544 | #ifdef CONFIG_PM_SLEEP |
1545 | static int s3c_fb_suspend(struct device *dev) |
1546 | { |
1547 | struct s3c_fb *sfb = dev_get_drvdata(dev); |
1548 | struct s3c_fb_win *win; |
1549 | int win_no; |
1550 | |
1551 | pm_runtime_get_sync(sfb->dev); |
1552 | |
1553 | for (win_no = S3C_FB_MAX_WIN - 1; win_no >= 0; win_no--) { |
1554 | win = sfb->windows[win_no]; |
1555 | if (!win) |
1556 | continue; |
1557 | |
1558 | /* use the blank function to push into power-down */ |
1559 | s3c_fb_blank(FB_BLANK_POWERDOWN, win->fbinfo); |
1560 | } |
1561 | |
1562 | if (!sfb->variant.has_clksel) |
1563 | clk_disable_unprepare(sfb->lcd_clk); |
1564 | |
1565 | clk_disable_unprepare(sfb->bus_clk); |
1566 | |
1567 | pm_runtime_put_sync(sfb->dev); |
1568 | |
1569 | return 0; |
1570 | } |
1571 | |
1572 | static int s3c_fb_resume(struct device *dev) |
1573 | { |
1574 | struct s3c_fb *sfb = dev_get_drvdata(dev); |
1575 | struct s3c_fb_platdata *pd = sfb->pdata; |
1576 | struct s3c_fb_win *win; |
1577 | int win_no; |
1578 | u32 reg; |
1579 | |
1580 | pm_runtime_get_sync(sfb->dev); |
1581 | |
1582 | clk_prepare_enable(sfb->bus_clk); |
1583 | |
1584 | if (!sfb->variant.has_clksel) |
1585 | clk_prepare_enable(sfb->lcd_clk); |
1586 | |
1587 | /* setup gpio and output polarity controls */ |
1588 | pd->setup_gpio(); |
1589 | writel(pd->vidcon1, sfb->regs + VIDCON1); |
1590 | |
1591 | /* set video clock running at under-run */ |
1592 | if (sfb->variant.has_fixvclk) { |
1593 | reg = readl(sfb->regs + VIDCON1); |
1594 | reg &= ~VIDCON1_VCLK_MASK; |
1595 | reg |= VIDCON1_VCLK_RUN; |
1596 | writel(reg, sfb->regs + VIDCON1); |
1597 | } |
1598 | |
1599 | /* zero all windows before we do anything */ |
1600 | for (win_no = 0; win_no < sfb->variant.nr_windows; win_no++) |
1601 | s3c_fb_clear_win(sfb, win_no); |
1602 | |
1603 | for (win_no = 0; win_no < sfb->variant.nr_windows - 1; win_no++) { |
1604 | void __iomem *regs = sfb->regs + sfb->variant.keycon; |
1605 | win = sfb->windows[win_no]; |
1606 | if (!win) |
1607 | continue; |
1608 | |
1609 | shadow_protect_win(win, 1); |
1610 | regs += (win_no * 8); |
1611 | writel(0xffffff, regs + WKEYCON0); |
1612 | writel(0xffffff, regs + WKEYCON1); |
1613 | shadow_protect_win(win, 0); |
1614 | } |
1615 | |
1616 | s3c_fb_set_rgb_timing(sfb); |
1617 | |
1618 | /* restore framebuffers */ |
1619 | for (win_no = 0; win_no < S3C_FB_MAX_WIN; win_no++) { |
1620 | win = sfb->windows[win_no]; |
1621 | if (!win) |
1622 | continue; |
1623 | |
1624 | dev_dbg(dev, "resuming window %d\n", win_no); |
1625 | s3c_fb_set_par(win->fbinfo); |
1626 | } |
1627 | |
1628 | pm_runtime_put_sync(sfb->dev); |
1629 | |
1630 | return 0; |
1631 | } |
1632 | #endif |
1633 | |
1634 | #ifdef CONFIG_PM_RUNTIME |
1635 | static int s3c_fb_runtime_suspend(struct device *dev) |
1636 | { |
1637 | struct s3c_fb *sfb = dev_get_drvdata(dev); |
1638 | |
1639 | if (!sfb->variant.has_clksel) |
1640 | clk_disable_unprepare(sfb->lcd_clk); |
1641 | |
1642 | clk_disable_unprepare(sfb->bus_clk); |
1643 | |
1644 | return 0; |
1645 | } |
1646 | |
1647 | static int s3c_fb_runtime_resume(struct device *dev) |
1648 | { |
1649 | struct s3c_fb *sfb = dev_get_drvdata(dev); |
1650 | struct s3c_fb_platdata *pd = sfb->pdata; |
1651 | |
1652 | clk_prepare_enable(sfb->bus_clk); |
1653 | |
1654 | if (!sfb->variant.has_clksel) |
1655 | clk_prepare_enable(sfb->lcd_clk); |
1656 | |
1657 | /* setup gpio and output polarity controls */ |
1658 | pd->setup_gpio(); |
1659 | writel(pd->vidcon1, sfb->regs + VIDCON1); |
1660 | |
1661 | return 0; |
1662 | } |
1663 | #endif |
1664 | |
1665 | #define VALID_BPP124 (VALID_BPP(1) | VALID_BPP(2) | VALID_BPP(4)) |
1666 | #define VALID_BPP1248 (VALID_BPP124 | VALID_BPP(8)) |
1667 | |
1668 | static struct s3c_fb_win_variant s3c_fb_data_64xx_wins[] = { |
1669 | [0] = { |
1670 | .has_osd_c = 1, |
1671 | .osd_size_off = 0x8, |
1672 | .palette_sz = 256, |
1673 | .valid_bpp = (VALID_BPP1248 | VALID_BPP(16) | |
1674 | VALID_BPP(18) | VALID_BPP(24)), |
1675 | }, |
1676 | [1] = { |
1677 | .has_osd_c = 1, |
1678 | .has_osd_d = 1, |
1679 | .osd_size_off = 0xc, |
1680 | .has_osd_alpha = 1, |
1681 | .palette_sz = 256, |
1682 | .valid_bpp = (VALID_BPP1248 | VALID_BPP(16) | |
1683 | VALID_BPP(18) | VALID_BPP(19) | |
1684 | VALID_BPP(24) | VALID_BPP(25) | |
1685 | VALID_BPP(28)), |
1686 | }, |
1687 | [2] = { |
1688 | .has_osd_c = 1, |
1689 | .has_osd_d = 1, |
1690 | .osd_size_off = 0xc, |
1691 | .has_osd_alpha = 1, |
1692 | .palette_sz = 16, |
1693 | .palette_16bpp = 1, |
1694 | .valid_bpp = (VALID_BPP1248 | VALID_BPP(16) | |
1695 | VALID_BPP(18) | VALID_BPP(19) | |
1696 | VALID_BPP(24) | VALID_BPP(25) | |
1697 | VALID_BPP(28)), |
1698 | }, |
1699 | [3] = { |
1700 | .has_osd_c = 1, |
1701 | .has_osd_alpha = 1, |
1702 | .palette_sz = 16, |
1703 | .palette_16bpp = 1, |
1704 | .valid_bpp = (VALID_BPP124 | VALID_BPP(16) | |
1705 | VALID_BPP(18) | VALID_BPP(19) | |
1706 | VALID_BPP(24) | VALID_BPP(25) | |
1707 | VALID_BPP(28)), |
1708 | }, |
1709 | [4] = { |
1710 | .has_osd_c = 1, |
1711 | .has_osd_alpha = 1, |
1712 | .palette_sz = 4, |
1713 | .palette_16bpp = 1, |
1714 | .valid_bpp = (VALID_BPP(1) | VALID_BPP(2) | |
1715 | VALID_BPP(16) | VALID_BPP(18) | |
1716 | VALID_BPP(19) | VALID_BPP(24) | |
1717 | VALID_BPP(25) | VALID_BPP(28)), |
1718 | }, |
1719 | }; |
1720 | |
1721 | static struct s3c_fb_win_variant s3c_fb_data_s5p_wins[] = { |
1722 | [0] = { |
1723 | .has_osd_c = 1, |
1724 | .osd_size_off = 0x8, |
1725 | .palette_sz = 256, |
1726 | .valid_bpp = (VALID_BPP1248 | VALID_BPP(13) | |
1727 | VALID_BPP(15) | VALID_BPP(16) | |
1728 | VALID_BPP(18) | VALID_BPP(19) | |
1729 | VALID_BPP(24) | VALID_BPP(25) | |
1730 | VALID_BPP(32)), |
1731 | }, |
1732 | [1] = { |
1733 | .has_osd_c = 1, |
1734 | .has_osd_d = 1, |
1735 | .osd_size_off = 0xc, |
1736 | .has_osd_alpha = 1, |
1737 | .palette_sz = 256, |
1738 | .valid_bpp = (VALID_BPP1248 | VALID_BPP(13) | |
1739 | VALID_BPP(15) | VALID_BPP(16) | |
1740 | VALID_BPP(18) | VALID_BPP(19) | |
1741 | VALID_BPP(24) | VALID_BPP(25) | |
1742 | VALID_BPP(32)), |
1743 | }, |
1744 | [2] = { |
1745 | .has_osd_c = 1, |
1746 | .has_osd_d = 1, |
1747 | .osd_size_off = 0xc, |
1748 | .has_osd_alpha = 1, |
1749 | .palette_sz = 256, |
1750 | .valid_bpp = (VALID_BPP1248 | VALID_BPP(13) | |
1751 | VALID_BPP(15) | VALID_BPP(16) | |
1752 | VALID_BPP(18) | VALID_BPP(19) | |
1753 | VALID_BPP(24) | VALID_BPP(25) | |
1754 | VALID_BPP(32)), |
1755 | }, |
1756 | [3] = { |
1757 | .has_osd_c = 1, |
1758 | .has_osd_alpha = 1, |
1759 | .palette_sz = 256, |
1760 | .valid_bpp = (VALID_BPP1248 | VALID_BPP(13) | |
1761 | VALID_BPP(15) | VALID_BPP(16) | |
1762 | VALID_BPP(18) | VALID_BPP(19) | |
1763 | VALID_BPP(24) | VALID_BPP(25) | |
1764 | VALID_BPP(32)), |
1765 | }, |
1766 | [4] = { |
1767 | .has_osd_c = 1, |
1768 | .has_osd_alpha = 1, |
1769 | .palette_sz = 256, |
1770 | .valid_bpp = (VALID_BPP1248 | VALID_BPP(13) | |
1771 | VALID_BPP(15) | VALID_BPP(16) | |
1772 | VALID_BPP(18) | VALID_BPP(19) | |
1773 | VALID_BPP(24) | VALID_BPP(25) | |
1774 | VALID_BPP(32)), |
1775 | }, |
1776 | }; |
1777 | |
1778 | static struct s3c_fb_driverdata s3c_fb_data_64xx = { |
1779 | .variant = { |
1780 | .nr_windows = 5, |
1781 | .vidtcon = VIDTCON0, |
1782 | .wincon = WINCON(0), |
1783 | .winmap = WINxMAP(0), |
1784 | .keycon = WKEYCON, |
1785 | .osd = VIDOSD_BASE, |
1786 | .osd_stride = 16, |
1787 | .buf_start = VIDW_BUF_START(0), |
1788 | .buf_size = VIDW_BUF_SIZE(0), |
1789 | .buf_end = VIDW_BUF_END(0), |
1790 | |
1791 | .palette = { |
1792 | [0] = 0x400, |
1793 | [1] = 0x800, |
1794 | [2] = 0x300, |
1795 | [3] = 0x320, |
1796 | [4] = 0x340, |
1797 | }, |
1798 | |
1799 | .has_prtcon = 1, |
1800 | .has_clksel = 1, |
1801 | }, |
1802 | .win[0] = &s3c_fb_data_64xx_wins[0], |
1803 | .win[1] = &s3c_fb_data_64xx_wins[1], |
1804 | .win[2] = &s3c_fb_data_64xx_wins[2], |
1805 | .win[3] = &s3c_fb_data_64xx_wins[3], |
1806 | .win[4] = &s3c_fb_data_64xx_wins[4], |
1807 | }; |
1808 | |
1809 | static struct s3c_fb_driverdata s3c_fb_data_s5pc100 = { |
1810 | .variant = { |
1811 | .nr_windows = 5, |
1812 | .vidtcon = VIDTCON0, |
1813 | .wincon = WINCON(0), |
1814 | .winmap = WINxMAP(0), |
1815 | .keycon = WKEYCON, |
1816 | .osd = VIDOSD_BASE, |
1817 | .osd_stride = 16, |
1818 | .buf_start = VIDW_BUF_START(0), |
1819 | .buf_size = VIDW_BUF_SIZE(0), |
1820 | .buf_end = VIDW_BUF_END(0), |
1821 | |
1822 | .palette = { |
1823 | [0] = 0x2400, |
1824 | [1] = 0x2800, |
1825 | [2] = 0x2c00, |
1826 | [3] = 0x3000, |
1827 | [4] = 0x3400, |
1828 | }, |
1829 | |
1830 | .has_prtcon = 1, |
1831 | .has_blendcon = 1, |
1832 | .has_clksel = 1, |
1833 | }, |
1834 | .win[0] = &s3c_fb_data_s5p_wins[0], |
1835 | .win[1] = &s3c_fb_data_s5p_wins[1], |
1836 | .win[2] = &s3c_fb_data_s5p_wins[2], |
1837 | .win[3] = &s3c_fb_data_s5p_wins[3], |
1838 | .win[4] = &s3c_fb_data_s5p_wins[4], |
1839 | }; |
1840 | |
1841 | static struct s3c_fb_driverdata s3c_fb_data_s5pv210 = { |
1842 | .variant = { |
1843 | .nr_windows = 5, |
1844 | .vidtcon = VIDTCON0, |
1845 | .wincon = WINCON(0), |
1846 | .winmap = WINxMAP(0), |
1847 | .keycon = WKEYCON, |
1848 | .osd = VIDOSD_BASE, |
1849 | .osd_stride = 16, |
1850 | .buf_start = VIDW_BUF_START(0), |
1851 | .buf_size = VIDW_BUF_SIZE(0), |
1852 | .buf_end = VIDW_BUF_END(0), |
1853 | |
1854 | .palette = { |
1855 | [0] = 0x2400, |
1856 | [1] = 0x2800, |
1857 | [2] = 0x2c00, |
1858 | [3] = 0x3000, |
1859 | [4] = 0x3400, |
1860 | }, |
1861 | |
1862 | .has_shadowcon = 1, |
1863 | .has_blendcon = 1, |
1864 | .has_clksel = 1, |
1865 | .has_fixvclk = 1, |
1866 | }, |
1867 | .win[0] = &s3c_fb_data_s5p_wins[0], |
1868 | .win[1] = &s3c_fb_data_s5p_wins[1], |
1869 | .win[2] = &s3c_fb_data_s5p_wins[2], |
1870 | .win[3] = &s3c_fb_data_s5p_wins[3], |
1871 | .win[4] = &s3c_fb_data_s5p_wins[4], |
1872 | }; |
1873 | |
1874 | static struct s3c_fb_driverdata s3c_fb_data_exynos4 = { |
1875 | .variant = { |
1876 | .nr_windows = 5, |
1877 | .vidtcon = VIDTCON0, |
1878 | .wincon = WINCON(0), |
1879 | .winmap = WINxMAP(0), |
1880 | .keycon = WKEYCON, |
1881 | .osd = VIDOSD_BASE, |
1882 | .osd_stride = 16, |
1883 | .buf_start = VIDW_BUF_START(0), |
1884 | .buf_size = VIDW_BUF_SIZE(0), |
1885 | .buf_end = VIDW_BUF_END(0), |
1886 | |
1887 | .palette = { |
1888 | [0] = 0x2400, |
1889 | [1] = 0x2800, |
1890 | [2] = 0x2c00, |
1891 | [3] = 0x3000, |
1892 | [4] = 0x3400, |
1893 | }, |
1894 | |
1895 | .has_shadowcon = 1, |
1896 | .has_blendcon = 1, |
1897 | .has_fixvclk = 1, |
1898 | }, |
1899 | .win[0] = &s3c_fb_data_s5p_wins[0], |
1900 | .win[1] = &s3c_fb_data_s5p_wins[1], |
1901 | .win[2] = &s3c_fb_data_s5p_wins[2], |
1902 | .win[3] = &s3c_fb_data_s5p_wins[3], |
1903 | .win[4] = &s3c_fb_data_s5p_wins[4], |
1904 | }; |
1905 | |
1906 | static struct s3c_fb_driverdata s3c_fb_data_exynos5 = { |
1907 | .variant = { |
1908 | .nr_windows = 5, |
1909 | .vidtcon = FIMD_V8_VIDTCON0, |
1910 | .wincon = WINCON(0), |
1911 | .winmap = WINxMAP(0), |
1912 | .keycon = WKEYCON, |
1913 | .osd = VIDOSD_BASE, |
1914 | .osd_stride = 16, |
1915 | .buf_start = VIDW_BUF_START(0), |
1916 | .buf_size = VIDW_BUF_SIZE(0), |
1917 | .buf_end = VIDW_BUF_END(0), |
1918 | |
1919 | .palette = { |
1920 | [0] = 0x2400, |
1921 | [1] = 0x2800, |
1922 | [2] = 0x2c00, |
1923 | [3] = 0x3000, |
1924 | [4] = 0x3400, |
1925 | }, |
1926 | .has_shadowcon = 1, |
1927 | .has_blendcon = 1, |
1928 | .has_fixvclk = 1, |
1929 | }, |
1930 | .win[0] = &s3c_fb_data_s5p_wins[0], |
1931 | .win[1] = &s3c_fb_data_s5p_wins[1], |
1932 | .win[2] = &s3c_fb_data_s5p_wins[2], |
1933 | .win[3] = &s3c_fb_data_s5p_wins[3], |
1934 | .win[4] = &s3c_fb_data_s5p_wins[4], |
1935 | }; |
1936 | |
1937 | /* S3C2443/S3C2416 style hardware */ |
1938 | static struct s3c_fb_driverdata s3c_fb_data_s3c2443 = { |
1939 | .variant = { |
1940 | .nr_windows = 2, |
1941 | .is_2443 = 1, |
1942 | |
1943 | .vidtcon = 0x08, |
1944 | .wincon = 0x14, |
1945 | .winmap = 0xd0, |
1946 | .keycon = 0xb0, |
1947 | .osd = 0x28, |
1948 | .osd_stride = 12, |
1949 | .buf_start = 0x64, |
1950 | .buf_size = 0x94, |
1951 | .buf_end = 0x7c, |
1952 | |
1953 | .palette = { |
1954 | [0] = 0x400, |
1955 | [1] = 0x800, |
1956 | }, |
1957 | .has_clksel = 1, |
1958 | }, |
1959 | .win[0] = &(struct s3c_fb_win_variant) { |
1960 | .palette_sz = 256, |
1961 | .valid_bpp = VALID_BPP1248 | VALID_BPP(16) | VALID_BPP(24), |
1962 | }, |
1963 | .win[1] = &(struct s3c_fb_win_variant) { |
1964 | .has_osd_c = 1, |
1965 | .has_osd_alpha = 1, |
1966 | .palette_sz = 256, |
1967 | .valid_bpp = (VALID_BPP1248 | VALID_BPP(16) | |
1968 | VALID_BPP(18) | VALID_BPP(19) | |
1969 | VALID_BPP(24) | VALID_BPP(25) | |
1970 | VALID_BPP(28)), |
1971 | }, |
1972 | }; |
1973 | |
1974 | static struct s3c_fb_driverdata s3c_fb_data_s5p64x0 = { |
1975 | .variant = { |
1976 | .nr_windows = 3, |
1977 | .vidtcon = VIDTCON0, |
1978 | .wincon = WINCON(0), |
1979 | .winmap = WINxMAP(0), |
1980 | .keycon = WKEYCON, |
1981 | .osd = VIDOSD_BASE, |
1982 | .osd_stride = 16, |
1983 | .buf_start = VIDW_BUF_START(0), |
1984 | .buf_size = VIDW_BUF_SIZE(0), |
1985 | .buf_end = VIDW_BUF_END(0), |
1986 | |
1987 | .palette = { |
1988 | [0] = 0x2400, |
1989 | [1] = 0x2800, |
1990 | [2] = 0x2c00, |
1991 | }, |
1992 | |
1993 | .has_blendcon = 1, |
1994 | .has_fixvclk = 1, |
1995 | }, |
1996 | .win[0] = &s3c_fb_data_s5p_wins[0], |
1997 | .win[1] = &s3c_fb_data_s5p_wins[1], |
1998 | .win[2] = &s3c_fb_data_s5p_wins[2], |
1999 | }; |
2000 | |
2001 | static struct platform_device_id s3c_fb_driver_ids[] = { |
2002 | { |
2003 | .name = "s3c-fb", |
2004 | .driver_data = (unsigned long)&s3c_fb_data_64xx, |
2005 | }, { |
2006 | .name = "s5pc100-fb", |
2007 | .driver_data = (unsigned long)&s3c_fb_data_s5pc100, |
2008 | }, { |
2009 | .name = "s5pv210-fb", |
2010 | .driver_data = (unsigned long)&s3c_fb_data_s5pv210, |
2011 | }, { |
2012 | .name = "exynos4-fb", |
2013 | .driver_data = (unsigned long)&s3c_fb_data_exynos4, |
2014 | }, { |
2015 | .name = "exynos5-fb", |
2016 | .driver_data = (unsigned long)&s3c_fb_data_exynos5, |
2017 | }, { |
2018 | .name = "s3c2443-fb", |
2019 | .driver_data = (unsigned long)&s3c_fb_data_s3c2443, |
2020 | }, { |
2021 | .name = "s5p64x0-fb", |
2022 | .driver_data = (unsigned long)&s3c_fb_data_s5p64x0, |
2023 | }, |
2024 | {}, |
2025 | }; |
2026 | MODULE_DEVICE_TABLE(platform, s3c_fb_driver_ids); |
2027 | |
2028 | static const struct dev_pm_ops s3cfb_pm_ops = { |
2029 | SET_SYSTEM_SLEEP_PM_OPS(s3c_fb_suspend, s3c_fb_resume) |
2030 | SET_RUNTIME_PM_OPS(s3c_fb_runtime_suspend, s3c_fb_runtime_resume, |
2031 | NULL) |
2032 | }; |
2033 | |
2034 | static struct platform_driver s3c_fb_driver = { |
2035 | .probe = s3c_fb_probe, |
2036 | .remove = s3c_fb_remove, |
2037 | .id_table = s3c_fb_driver_ids, |
2038 | .driver = { |
2039 | .name = "s3c-fb", |
2040 | .owner = THIS_MODULE, |
2041 | .pm = &s3cfb_pm_ops, |
2042 | }, |
2043 | }; |
2044 | |
2045 | module_platform_driver(s3c_fb_driver); |
2046 | |
2047 | MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>"); |
2048 | MODULE_DESCRIPTION("Samsung S3C SoC Framebuffer driver"); |
2049 | MODULE_LICENSE("GPL"); |
2050 | MODULE_ALIAS("platform:s3c-fb"); |
2051 |
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