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ec549a0f BD |
1 | /* linux/drivers/video/s3c-fb.c |
2 | * | |
3 | * Copyright 2008 Openmoko Inc. | |
50a5503a | 4 | * Copyright 2008-2010 Simtec Electronics |
ec549a0f BD |
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> | |
5a0e3ad6 | 19 | #include <linux/slab.h> |
ec549a0f | 20 | #include <linux/init.h> |
ec549a0f BD |
21 | #include <linux/clk.h> |
22 | #include <linux/fb.h> | |
23 | #include <linux/io.h> | |
24 | ||
25 | #include <mach/map.h> | |
26 | #include <mach/regs-fb.h> | |
27 | #include <plat/fb.h> | |
28 | ||
29 | /* This driver will export a number of framebuffer interfaces depending | |
30 | * on the configuration passed in via the platform data. Each fb instance | |
31 | * maps to a hardware window. Currently there is no support for runtime | |
32 | * setting of the alpha-blending functions that each window has, so only | |
33 | * window 0 is actually useful. | |
34 | * | |
35 | * Window 0 is treated specially, it is used for the basis of the LCD | |
36 | * output timings and as the control for the output power-down state. | |
37 | */ | |
38 | ||
50a5503a BD |
39 | /* note, the previous use of <mach/regs-fb.h> to get platform specific data |
40 | * has been replaced by using the platform device name to pick the correct | |
41 | * configuration data for the system. | |
ec549a0f BD |
42 | */ |
43 | ||
44 | #ifdef CONFIG_FB_S3C_DEBUG_REGWRITE | |
45 | #undef writel | |
46 | #define writel(v, r) do { \ | |
47 | printk(KERN_DEBUG "%s: %08x => %p\n", __func__, (unsigned int)v, r); \ | |
48 | __raw_writel(v, r); } while(0) | |
49 | #endif /* FB_S3C_DEBUG_REGWRITE */ | |
50 | ||
51 | struct s3c_fb; | |
52 | ||
50a5503a BD |
53 | #define VALID_BPP(x) (1 << ((x) - 1)) |
54 | ||
55 | /** | |
56 | * struct s3c_fb_variant - fb variant information | |
57 | * @nr_windows: The number of windows. | |
58 | * @palette: Address of palette memory, or 0 if none. | |
59 | */ | |
60 | struct s3c_fb_variant { | |
61 | unsigned short nr_windows; | |
62 | unsigned short palette[S3C_FB_MAX_WIN]; | |
63 | }; | |
64 | ||
65 | /** | |
66 | * struct s3c_fb_win_variant | |
67 | * @has_osd_c: Set if has OSD C register. | |
68 | * @has_osd_d: Set if has OSD D register. | |
69 | * @palette_sz: Size of palette in entries. | |
70 | * @palette_16bpp: Set if palette is 16bits wide. | |
71 | * @valid_bpp: 1 bit per BPP setting to show valid bits-per-pixel. | |
72 | * | |
73 | * valid_bpp bit x is set if (x+1)BPP is supported. | |
74 | */ | |
75 | struct s3c_fb_win_variant { | |
76 | unsigned int has_osd_c:1; | |
77 | unsigned int has_osd_d:1; | |
78 | unsigned int palette_16bpp:1; | |
79 | unsigned short palette_sz; | |
80 | u32 valid_bpp; | |
81 | }; | |
82 | ||
83 | /** | |
84 | * struct s3c_fb_driverdata - per-device type driver data for init time. | |
85 | * @variant: The variant information for this driver. | |
86 | * @win: The window information for each window. | |
87 | */ | |
88 | struct s3c_fb_driverdata { | |
89 | struct s3c_fb_variant variant; | |
90 | struct s3c_fb_win_variant *win[S3C_FB_MAX_WIN]; | |
91 | }; | |
92 | ||
ec549a0f BD |
93 | /** |
94 | * struct s3c_fb_win - per window private data for each framebuffer. | |
95 | * @windata: The platform data supplied for the window configuration. | |
96 | * @parent: The hardware that this window is part of. | |
97 | * @fbinfo: Pointer pack to the framebuffer info for this window. | |
50a5503a | 98 | * @varint: The variant information for this window. |
ec549a0f BD |
99 | * @palette_buffer: Buffer/cache to hold palette entries. |
100 | * @pseudo_palette: For use in TRUECOLOUR modes for entries 0..15/ | |
101 | * @index: The window number of this window. | |
102 | * @palette: The bitfields for changing r/g/b into a hardware palette entry. | |
103 | */ | |
104 | struct s3c_fb_win { | |
105 | struct s3c_fb_pd_win *windata; | |
106 | struct s3c_fb *parent; | |
107 | struct fb_info *fbinfo; | |
108 | struct s3c_fb_palette palette; | |
50a5503a | 109 | struct s3c_fb_win_variant variant; |
ec549a0f BD |
110 | |
111 | u32 *palette_buffer; | |
112 | u32 pseudo_palette[16]; | |
113 | unsigned int index; | |
114 | }; | |
115 | ||
116 | /** | |
117 | * struct s3c_fb - overall hardware state of the hardware | |
118 | * @dev: The device that we bound to, for printing, etc. | |
119 | * @regs_res: The resource we claimed for the IO registers. | |
120 | * @bus_clk: The clk (hclk) feeding our interface and possibly pixclk. | |
121 | * @regs: The mapped hardware registers. | |
50a5503a | 122 | * @variant: Variant information for this hardware. |
ec549a0f BD |
123 | * @enabled: A bitmask of enabled hardware windows. |
124 | * @pdata: The platform configuration data passed with the device. | |
125 | * @windows: The hardware windows that have been claimed. | |
126 | */ | |
127 | struct s3c_fb { | |
128 | struct device *dev; | |
129 | struct resource *regs_res; | |
130 | struct clk *bus_clk; | |
131 | void __iomem *regs; | |
50a5503a | 132 | struct s3c_fb_variant variant; |
ec549a0f BD |
133 | |
134 | unsigned char enabled; | |
135 | ||
136 | struct s3c_fb_platdata *pdata; | |
137 | struct s3c_fb_win *windows[S3C_FB_MAX_WIN]; | |
138 | }; | |
139 | ||
140 | /** | |
50a5503a BD |
141 | * s3c_fb_validate_win_bpp - validate the bits-per-pixel for this mode. |
142 | * @win: The device window. | |
143 | * @bpp: The bit depth. | |
ec549a0f | 144 | */ |
50a5503a | 145 | static bool s3c_fb_validate_win_bpp(struct s3c_fb_win *win, unsigned int bpp) |
ec549a0f | 146 | { |
50a5503a | 147 | return win->variant.valid_bpp & VALID_BPP(bpp); |
ec549a0f BD |
148 | } |
149 | ||
150 | /** | |
151 | * s3c_fb_check_var() - framebuffer layer request to verify a given mode. | |
152 | * @var: The screen information to verify. | |
153 | * @info: The framebuffer device. | |
154 | * | |
155 | * Framebuffer layer call to verify the given information and allow us to | |
156 | * update various information depending on the hardware capabilities. | |
157 | */ | |
158 | static int s3c_fb_check_var(struct fb_var_screeninfo *var, | |
159 | struct fb_info *info) | |
160 | { | |
161 | struct s3c_fb_win *win = info->par; | |
162 | struct s3c_fb_pd_win *windata = win->windata; | |
163 | struct s3c_fb *sfb = win->parent; | |
164 | ||
165 | dev_dbg(sfb->dev, "checking parameters\n"); | |
166 | ||
167 | var->xres_virtual = max((unsigned int)windata->virtual_x, var->xres); | |
168 | var->yres_virtual = max((unsigned int)windata->virtual_y, var->yres); | |
169 | ||
50a5503a | 170 | if (!s3c_fb_validate_win_bpp(win, var->bits_per_pixel)) { |
ec549a0f BD |
171 | dev_dbg(sfb->dev, "win %d: unsupported bpp %d\n", |
172 | win->index, var->bits_per_pixel); | |
173 | return -EINVAL; | |
174 | } | |
175 | ||
176 | /* always ensure these are zero, for drop through cases below */ | |
177 | var->transp.offset = 0; | |
178 | var->transp.length = 0; | |
179 | ||
180 | switch (var->bits_per_pixel) { | |
181 | case 1: | |
182 | case 2: | |
183 | case 4: | |
184 | case 8: | |
50a5503a | 185 | if (sfb->variant.palette[win->index] != 0) { |
ec549a0f BD |
186 | /* non palletised, A:1,R:2,G:3,B:2 mode */ |
187 | var->red.offset = 4; | |
188 | var->green.offset = 2; | |
189 | var->blue.offset = 0; | |
190 | var->red.length = 5; | |
191 | var->green.length = 3; | |
192 | var->blue.length = 2; | |
193 | var->transp.offset = 7; | |
194 | var->transp.length = 1; | |
195 | } else { | |
196 | var->red.offset = 0; | |
197 | var->red.length = var->bits_per_pixel; | |
198 | var->green = var->red; | |
199 | var->blue = var->red; | |
200 | } | |
201 | break; | |
202 | ||
203 | case 19: | |
204 | /* 666 with one bit alpha/transparency */ | |
205 | var->transp.offset = 18; | |
206 | var->transp.length = 1; | |
207 | case 18: | |
208 | var->bits_per_pixel = 32; | |
209 | ||
210 | /* 666 format */ | |
211 | var->red.offset = 12; | |
212 | var->green.offset = 6; | |
213 | var->blue.offset = 0; | |
214 | var->red.length = 6; | |
215 | var->green.length = 6; | |
216 | var->blue.length = 6; | |
217 | break; | |
218 | ||
219 | case 16: | |
220 | /* 16 bpp, 565 format */ | |
221 | var->red.offset = 11; | |
222 | var->green.offset = 5; | |
223 | var->blue.offset = 0; | |
224 | var->red.length = 5; | |
225 | var->green.length = 6; | |
226 | var->blue.length = 5; | |
227 | break; | |
228 | ||
229 | case 28: | |
230 | case 25: | |
231 | var->transp.length = var->bits_per_pixel - 24; | |
232 | var->transp.offset = 24; | |
233 | /* drop through */ | |
234 | case 24: | |
235 | /* our 24bpp is unpacked, so 32bpp */ | |
236 | var->bits_per_pixel = 32; | |
237 | case 32: | |
238 | var->red.offset = 16; | |
239 | var->red.length = 8; | |
240 | var->green.offset = 8; | |
241 | var->green.length = 8; | |
242 | var->blue.offset = 0; | |
243 | var->blue.length = 8; | |
244 | break; | |
245 | ||
246 | default: | |
247 | dev_err(sfb->dev, "invalid bpp\n"); | |
248 | } | |
249 | ||
250 | dev_dbg(sfb->dev, "%s: verified parameters\n", __func__); | |
251 | return 0; | |
252 | } | |
253 | ||
254 | /** | |
255 | * s3c_fb_calc_pixclk() - calculate the divider to create the pixel clock. | |
256 | * @sfb: The hardware state. | |
257 | * @pixclock: The pixel clock wanted, in picoseconds. | |
258 | * | |
259 | * Given the specified pixel clock, work out the necessary divider to get | |
260 | * close to the output frequency. | |
261 | */ | |
eb29a5cc | 262 | static int s3c_fb_calc_pixclk(struct s3c_fb *sfb, unsigned int pixclk) |
ec549a0f BD |
263 | { |
264 | unsigned long clk = clk_get_rate(sfb->bus_clk); | |
eb29a5cc | 265 | unsigned long long tmp; |
ec549a0f BD |
266 | unsigned int result; |
267 | ||
eb29a5cc MB |
268 | tmp = (unsigned long long)clk; |
269 | tmp *= pixclk; | |
270 | ||
271 | do_div(tmp, 1000000000UL); | |
272 | result = (unsigned int)tmp / 1000; | |
ec549a0f BD |
273 | |
274 | dev_dbg(sfb->dev, "pixclk=%u, clk=%lu, div=%d (%lu)\n", | |
275 | pixclk, clk, result, clk / result); | |
276 | ||
277 | return result; | |
278 | } | |
279 | ||
280 | /** | |
281 | * s3c_fb_align_word() - align pixel count to word boundary | |
282 | * @bpp: The number of bits per pixel | |
283 | * @pix: The value to be aligned. | |
284 | * | |
285 | * Align the given pixel count so that it will start on an 32bit word | |
286 | * boundary. | |
287 | */ | |
288 | static int s3c_fb_align_word(unsigned int bpp, unsigned int pix) | |
289 | { | |
290 | int pix_per_word; | |
291 | ||
292 | if (bpp > 16) | |
293 | return pix; | |
294 | ||
295 | pix_per_word = (8 * 32) / bpp; | |
296 | return ALIGN(pix, pix_per_word); | |
297 | } | |
298 | ||
299 | /** | |
300 | * s3c_fb_set_par() - framebuffer request to set new framebuffer state. | |
301 | * @info: The framebuffer to change. | |
302 | * | |
303 | * Framebuffer layer request to set a new mode for the specified framebuffer | |
304 | */ | |
305 | static int s3c_fb_set_par(struct fb_info *info) | |
306 | { | |
307 | struct fb_var_screeninfo *var = &info->var; | |
308 | struct s3c_fb_win *win = info->par; | |
309 | struct s3c_fb *sfb = win->parent; | |
310 | void __iomem *regs = sfb->regs; | |
311 | int win_no = win->index; | |
600ce1a0 | 312 | u32 osdc_data = 0; |
ec549a0f BD |
313 | u32 data; |
314 | u32 pagewidth; | |
315 | int clkdiv; | |
316 | ||
317 | dev_dbg(sfb->dev, "setting framebuffer parameters\n"); | |
318 | ||
319 | switch (var->bits_per_pixel) { | |
320 | case 32: | |
321 | case 24: | |
322 | case 16: | |
323 | case 12: | |
324 | info->fix.visual = FB_VISUAL_TRUECOLOR; | |
325 | break; | |
326 | case 8: | |
50a5503a | 327 | if (win->variant.palette_sz >= 256) |
ec549a0f BD |
328 | info->fix.visual = FB_VISUAL_PSEUDOCOLOR; |
329 | else | |
330 | info->fix.visual = FB_VISUAL_TRUECOLOR; | |
331 | break; | |
332 | case 1: | |
333 | info->fix.visual = FB_VISUAL_MONO01; | |
334 | break; | |
335 | default: | |
336 | info->fix.visual = FB_VISUAL_PSEUDOCOLOR; | |
337 | break; | |
338 | } | |
339 | ||
340 | info->fix.line_length = (var->xres_virtual * var->bits_per_pixel) / 8; | |
341 | ||
342 | /* disable the window whilst we update it */ | |
343 | writel(0, regs + WINCON(win_no)); | |
344 | ||
ad04490a | 345 | /* use platform specified window as the basis for the lcd timings */ |
ec549a0f | 346 | |
ad04490a | 347 | if (win_no == sfb->pdata->default_win) { |
eb29a5cc | 348 | clkdiv = s3c_fb_calc_pixclk(sfb, var->pixclock); |
ec549a0f BD |
349 | |
350 | data = sfb->pdata->vidcon0; | |
351 | data &= ~(VIDCON0_CLKVAL_F_MASK | VIDCON0_CLKDIR); | |
352 | ||
353 | if (clkdiv > 1) | |
354 | data |= VIDCON0_CLKVAL_F(clkdiv-1) | VIDCON0_CLKDIR; | |
355 | else | |
356 | data &= ~VIDCON0_CLKDIR; /* 1:1 clock */ | |
357 | ||
358 | /* write the timing data to the panel */ | |
359 | ||
360 | data |= VIDCON0_ENVID | VIDCON0_ENVID_F; | |
361 | writel(data, regs + VIDCON0); | |
362 | ||
363 | data = VIDTCON0_VBPD(var->upper_margin - 1) | | |
364 | VIDTCON0_VFPD(var->lower_margin - 1) | | |
365 | VIDTCON0_VSPW(var->vsync_len - 1); | |
366 | ||
367 | writel(data, regs + VIDTCON0); | |
368 | ||
369 | data = VIDTCON1_HBPD(var->left_margin - 1) | | |
370 | VIDTCON1_HFPD(var->right_margin - 1) | | |
371 | VIDTCON1_HSPW(var->hsync_len - 1); | |
372 | ||
373 | writel(data, regs + VIDTCON1); | |
374 | ||
375 | data = VIDTCON2_LINEVAL(var->yres - 1) | | |
376 | VIDTCON2_HOZVAL(var->xres - 1); | |
377 | writel(data, regs + VIDTCON2); | |
378 | } | |
379 | ||
380 | /* write the buffer address */ | |
381 | ||
382 | writel(info->fix.smem_start, regs + VIDW_BUF_START(win_no)); | |
383 | ||
384 | data = info->fix.smem_start + info->fix.line_length * var->yres; | |
385 | writel(data, regs + VIDW_BUF_END(win_no)); | |
386 | ||
387 | pagewidth = (var->xres * var->bits_per_pixel) >> 3; | |
388 | data = VIDW_BUF_SIZE_OFFSET(info->fix.line_length - pagewidth) | | |
389 | VIDW_BUF_SIZE_PAGEWIDTH(pagewidth); | |
390 | writel(data, regs + VIDW_BUF_SIZE(win_no)); | |
391 | ||
392 | /* write 'OSD' registers to control position of framebuffer */ | |
393 | ||
394 | data = VIDOSDxA_TOPLEFT_X(0) | VIDOSDxA_TOPLEFT_Y(0); | |
395 | writel(data, regs + VIDOSD_A(win_no)); | |
396 | ||
397 | data = VIDOSDxB_BOTRIGHT_X(s3c_fb_align_word(var->bits_per_pixel, | |
398 | var->xres - 1)) | | |
399 | VIDOSDxB_BOTRIGHT_Y(var->yres - 1); | |
400 | ||
401 | writel(data, regs + VIDOSD_B(win_no)); | |
402 | ||
403 | data = var->xres * var->yres; | |
39000d65 | 404 | |
39000d65 ID |
405 | osdc_data = VIDISD14C_ALPHA1_R(0xf) | |
406 | VIDISD14C_ALPHA1_G(0xf) | | |
407 | VIDISD14C_ALPHA1_B(0xf); | |
408 | ||
50a5503a | 409 | if (win->variant.has_osd_d) { |
ec549a0f | 410 | writel(data, regs + VIDOSD_D(win_no)); |
39000d65 | 411 | writel(osdc_data, regs + VIDOSD_C(win_no)); |
ec549a0f BD |
412 | } else |
413 | writel(data, regs + VIDOSD_C(win_no)); | |
414 | ||
415 | data = WINCONx_ENWIN; | |
416 | ||
417 | /* note, since we have to round up the bits-per-pixel, we end up | |
418 | * relying on the bitfield information for r/g/b/a to work out | |
419 | * exactly which mode of operation is intended. */ | |
420 | ||
421 | switch (var->bits_per_pixel) { | |
422 | case 1: | |
423 | data |= WINCON0_BPPMODE_1BPP; | |
424 | data |= WINCONx_BITSWP; | |
425 | data |= WINCONx_BURSTLEN_4WORD; | |
426 | break; | |
427 | case 2: | |
428 | data |= WINCON0_BPPMODE_2BPP; | |
429 | data |= WINCONx_BITSWP; | |
430 | data |= WINCONx_BURSTLEN_8WORD; | |
431 | break; | |
432 | case 4: | |
433 | data |= WINCON0_BPPMODE_4BPP; | |
434 | data |= WINCONx_BITSWP; | |
435 | data |= WINCONx_BURSTLEN_8WORD; | |
436 | break; | |
437 | case 8: | |
438 | if (var->transp.length != 0) | |
439 | data |= WINCON1_BPPMODE_8BPP_1232; | |
440 | else | |
441 | data |= WINCON0_BPPMODE_8BPP_PALETTE; | |
442 | data |= WINCONx_BURSTLEN_8WORD; | |
443 | data |= WINCONx_BYTSWP; | |
444 | break; | |
445 | case 16: | |
446 | if (var->transp.length != 0) | |
447 | data |= WINCON1_BPPMODE_16BPP_A1555; | |
448 | else | |
449 | data |= WINCON0_BPPMODE_16BPP_565; | |
450 | data |= WINCONx_HAWSWP; | |
451 | data |= WINCONx_BURSTLEN_16WORD; | |
452 | break; | |
453 | case 24: | |
454 | case 32: | |
455 | if (var->red.length == 6) { | |
456 | if (var->transp.length != 0) | |
457 | data |= WINCON1_BPPMODE_19BPP_A1666; | |
458 | else | |
459 | data |= WINCON1_BPPMODE_18BPP_666; | |
39000d65 ID |
460 | } else if (var->transp.length == 1) |
461 | data |= WINCON1_BPPMODE_25BPP_A1888 | |
462 | | WINCON1_BLD_PIX; | |
463 | else if (var->transp.length == 4) | |
464 | data |= WINCON1_BPPMODE_28BPP_A4888 | |
465 | | WINCON1_BLD_PIX | WINCON1_ALPHA_SEL; | |
ec549a0f BD |
466 | else |
467 | data |= WINCON0_BPPMODE_24BPP_888; | |
468 | ||
dc8498c0 | 469 | data |= WINCONx_WSWP; |
ec549a0f BD |
470 | data |= WINCONx_BURSTLEN_16WORD; |
471 | break; | |
472 | } | |
473 | ||
39000d65 ID |
474 | /* It has no color key control register for window0 */ |
475 | if (win_no > 0) { | |
476 | u32 keycon0_data = 0, keycon1_data = 0; | |
477 | ||
478 | keycon0_data = ~(WxKEYCON0_KEYBL_EN | | |
479 | WxKEYCON0_KEYEN_F | | |
480 | WxKEYCON0_DIRCON) | WxKEYCON0_COMPKEY(0); | |
481 | ||
482 | keycon1_data = WxKEYCON1_COLVAL(0xffffff); | |
483 | ||
484 | writel(keycon0_data, regs + WxKEYCONy(win_no-1, 0)); | |
485 | writel(keycon1_data, regs + WxKEYCONy(win_no-1, 1)); | |
486 | } | |
487 | ||
ec549a0f BD |
488 | writel(data, regs + WINCON(win_no)); |
489 | writel(0x0, regs + WINxMAP(win_no)); | |
490 | ||
491 | return 0; | |
492 | } | |
493 | ||
494 | /** | |
495 | * s3c_fb_update_palette() - set or schedule a palette update. | |
496 | * @sfb: The hardware information. | |
497 | * @win: The window being updated. | |
498 | * @reg: The palette index being changed. | |
499 | * @value: The computed palette value. | |
500 | * | |
501 | * Change the value of a palette register, either by directly writing to | |
502 | * the palette (this requires the palette RAM to be disconnected from the | |
503 | * hardware whilst this is in progress) or schedule the update for later. | |
504 | * | |
505 | * At the moment, since we have no VSYNC interrupt support, we simply set | |
506 | * the palette entry directly. | |
507 | */ | |
508 | static void s3c_fb_update_palette(struct s3c_fb *sfb, | |
509 | struct s3c_fb_win *win, | |
510 | unsigned int reg, | |
511 | u32 value) | |
512 | { | |
513 | void __iomem *palreg; | |
514 | u32 palcon; | |
515 | ||
50a5503a | 516 | palreg = sfb->regs + sfb->variant.palette[win->index]; |
ec549a0f BD |
517 | |
518 | dev_dbg(sfb->dev, "%s: win %d, reg %d (%p): %08x\n", | |
519 | __func__, win->index, reg, palreg, value); | |
520 | ||
521 | win->palette_buffer[reg] = value; | |
522 | ||
523 | palcon = readl(sfb->regs + WPALCON); | |
524 | writel(palcon | WPALCON_PAL_UPDATE, sfb->regs + WPALCON); | |
525 | ||
50a5503a BD |
526 | if (win->variant.palette_16bpp) |
527 | writew(value, palreg + (reg * 2)); | |
ec549a0f | 528 | else |
50a5503a | 529 | writel(value, palreg + (reg * 4)); |
ec549a0f BD |
530 | |
531 | writel(palcon, sfb->regs + WPALCON); | |
532 | } | |
533 | ||
534 | static inline unsigned int chan_to_field(unsigned int chan, | |
535 | struct fb_bitfield *bf) | |
536 | { | |
537 | chan &= 0xffff; | |
538 | chan >>= 16 - bf->length; | |
539 | return chan << bf->offset; | |
540 | } | |
541 | ||
542 | /** | |
543 | * s3c_fb_setcolreg() - framebuffer layer request to change palette. | |
544 | * @regno: The palette index to change. | |
545 | * @red: The red field for the palette data. | |
546 | * @green: The green field for the palette data. | |
547 | * @blue: The blue field for the palette data. | |
548 | * @trans: The transparency (alpha) field for the palette data. | |
549 | * @info: The framebuffer being changed. | |
550 | */ | |
551 | static int s3c_fb_setcolreg(unsigned regno, | |
552 | unsigned red, unsigned green, unsigned blue, | |
553 | unsigned transp, struct fb_info *info) | |
554 | { | |
555 | struct s3c_fb_win *win = info->par; | |
556 | struct s3c_fb *sfb = win->parent; | |
557 | unsigned int val; | |
558 | ||
559 | dev_dbg(sfb->dev, "%s: win %d: %d => rgb=%d/%d/%d\n", | |
560 | __func__, win->index, regno, red, green, blue); | |
561 | ||
562 | switch (info->fix.visual) { | |
563 | case FB_VISUAL_TRUECOLOR: | |
564 | /* true-colour, use pseudo-palette */ | |
565 | ||
566 | if (regno < 16) { | |
567 | u32 *pal = info->pseudo_palette; | |
568 | ||
569 | val = chan_to_field(red, &info->var.red); | |
570 | val |= chan_to_field(green, &info->var.green); | |
571 | val |= chan_to_field(blue, &info->var.blue); | |
572 | ||
573 | pal[regno] = val; | |
574 | } | |
575 | break; | |
576 | ||
577 | case FB_VISUAL_PSEUDOCOLOR: | |
50a5503a | 578 | if (regno < win->variant.palette_sz) { |
ec549a0f BD |
579 | val = chan_to_field(red, &win->palette.r); |
580 | val |= chan_to_field(green, &win->palette.g); | |
581 | val |= chan_to_field(blue, &win->palette.b); | |
582 | ||
583 | s3c_fb_update_palette(sfb, win, regno, val); | |
584 | } | |
585 | ||
586 | break; | |
587 | ||
588 | default: | |
589 | return 1; /* unknown type */ | |
590 | } | |
591 | ||
592 | return 0; | |
593 | } | |
594 | ||
595 | /** | |
596 | * s3c_fb_enable() - Set the state of the main LCD output | |
597 | * @sfb: The main framebuffer state. | |
598 | * @enable: The state to set. | |
599 | */ | |
600 | static void s3c_fb_enable(struct s3c_fb *sfb, int enable) | |
601 | { | |
602 | u32 vidcon0 = readl(sfb->regs + VIDCON0); | |
603 | ||
604 | if (enable) | |
605 | vidcon0 |= VIDCON0_ENVID | VIDCON0_ENVID_F; | |
606 | else { | |
607 | /* see the note in the framebuffer datasheet about | |
608 | * why you cannot take both of these bits down at the | |
609 | * same time. */ | |
610 | ||
611 | if (!(vidcon0 & VIDCON0_ENVID)) | |
612 | return; | |
613 | ||
614 | vidcon0 |= VIDCON0_ENVID; | |
615 | vidcon0 &= ~VIDCON0_ENVID_F; | |
616 | } | |
617 | ||
618 | writel(vidcon0, sfb->regs + VIDCON0); | |
619 | } | |
620 | ||
621 | /** | |
622 | * s3c_fb_blank() - blank or unblank the given window | |
623 | * @blank_mode: The blank state from FB_BLANK_* | |
624 | * @info: The framebuffer to blank. | |
625 | * | |
626 | * Framebuffer layer request to change the power state. | |
627 | */ | |
628 | static int s3c_fb_blank(int blank_mode, struct fb_info *info) | |
629 | { | |
630 | struct s3c_fb_win *win = info->par; | |
631 | struct s3c_fb *sfb = win->parent; | |
632 | unsigned int index = win->index; | |
633 | u32 wincon; | |
634 | ||
635 | dev_dbg(sfb->dev, "blank mode %d\n", blank_mode); | |
636 | ||
637 | wincon = readl(sfb->regs + WINCON(index)); | |
638 | ||
639 | switch (blank_mode) { | |
640 | case FB_BLANK_POWERDOWN: | |
641 | wincon &= ~WINCONx_ENWIN; | |
642 | sfb->enabled &= ~(1 << index); | |
643 | /* fall through to FB_BLANK_NORMAL */ | |
644 | ||
645 | case FB_BLANK_NORMAL: | |
646 | /* disable the DMA and display 0x0 (black) */ | |
647 | writel(WINxMAP_MAP | WINxMAP_MAP_COLOUR(0x0), | |
648 | sfb->regs + WINxMAP(index)); | |
649 | break; | |
650 | ||
651 | case FB_BLANK_UNBLANK: | |
652 | writel(0x0, sfb->regs + WINxMAP(index)); | |
653 | wincon |= WINCONx_ENWIN; | |
654 | sfb->enabled |= (1 << index); | |
655 | break; | |
656 | ||
657 | case FB_BLANK_VSYNC_SUSPEND: | |
658 | case FB_BLANK_HSYNC_SUSPEND: | |
659 | default: | |
660 | return 1; | |
661 | } | |
662 | ||
663 | writel(wincon, sfb->regs + WINCON(index)); | |
664 | ||
665 | /* Check the enabled state to see if we need to be running the | |
666 | * main LCD interface, as if there are no active windows then | |
667 | * it is highly likely that we also do not need to output | |
668 | * anything. | |
669 | */ | |
670 | ||
671 | /* We could do something like the following code, but the current | |
672 | * system of using framebuffer events means that we cannot make | |
673 | * the distinction between just window 0 being inactive and all | |
674 | * the windows being down. | |
675 | * | |
676 | * s3c_fb_enable(sfb, sfb->enabled ? 1 : 0); | |
677 | */ | |
678 | ||
679 | /* we're stuck with this until we can do something about overriding | |
680 | * the power control using the blanking event for a single fb. | |
681 | */ | |
ad04490a | 682 | if (index == sfb->pdata->default_win) |
ec549a0f BD |
683 | s3c_fb_enable(sfb, blank_mode != FB_BLANK_POWERDOWN ? 1 : 0); |
684 | ||
685 | return 0; | |
686 | } | |
687 | ||
688 | static struct fb_ops s3c_fb_ops = { | |
689 | .owner = THIS_MODULE, | |
690 | .fb_check_var = s3c_fb_check_var, | |
691 | .fb_set_par = s3c_fb_set_par, | |
692 | .fb_blank = s3c_fb_blank, | |
693 | .fb_setcolreg = s3c_fb_setcolreg, | |
694 | .fb_fillrect = cfb_fillrect, | |
695 | .fb_copyarea = cfb_copyarea, | |
696 | .fb_imageblit = cfb_imageblit, | |
697 | }; | |
698 | ||
699 | /** | |
700 | * s3c_fb_alloc_memory() - allocate display memory for framebuffer window | |
701 | * @sfb: The base resources for the hardware. | |
702 | * @win: The window to initialise memory for. | |
703 | * | |
704 | * Allocate memory for the given framebuffer. | |
705 | */ | |
706 | static int __devinit s3c_fb_alloc_memory(struct s3c_fb *sfb, | |
707 | struct s3c_fb_win *win) | |
708 | { | |
709 | struct s3c_fb_pd_win *windata = win->windata; | |
710 | unsigned int real_size, virt_size, size; | |
711 | struct fb_info *fbi = win->fbinfo; | |
712 | dma_addr_t map_dma; | |
713 | ||
714 | dev_dbg(sfb->dev, "allocating memory for display\n"); | |
715 | ||
716 | real_size = windata->win_mode.xres * windata->win_mode.yres; | |
717 | virt_size = windata->virtual_x * windata->virtual_y; | |
718 | ||
719 | dev_dbg(sfb->dev, "real_size=%u (%u.%u), virt_size=%u (%u.%u)\n", | |
720 | real_size, windata->win_mode.xres, windata->win_mode.yres, | |
721 | virt_size, windata->virtual_x, windata->virtual_y); | |
722 | ||
723 | size = (real_size > virt_size) ? real_size : virt_size; | |
724 | size *= (windata->max_bpp > 16) ? 32 : windata->max_bpp; | |
725 | size /= 8; | |
726 | ||
727 | fbi->fix.smem_len = size; | |
728 | size = PAGE_ALIGN(size); | |
729 | ||
730 | dev_dbg(sfb->dev, "want %u bytes for window\n", size); | |
731 | ||
732 | fbi->screen_base = dma_alloc_writecombine(sfb->dev, size, | |
733 | &map_dma, GFP_KERNEL); | |
734 | if (!fbi->screen_base) | |
735 | return -ENOMEM; | |
736 | ||
737 | dev_dbg(sfb->dev, "mapped %x to %p\n", | |
738 | (unsigned int)map_dma, fbi->screen_base); | |
739 | ||
740 | memset(fbi->screen_base, 0x0, size); | |
741 | fbi->fix.smem_start = map_dma; | |
742 | ||
743 | return 0; | |
744 | } | |
745 | ||
746 | /** | |
747 | * s3c_fb_free_memory() - free the display memory for the given window | |
748 | * @sfb: The base resources for the hardware. | |
749 | * @win: The window to free the display memory for. | |
750 | * | |
751 | * Free the display memory allocated by s3c_fb_alloc_memory(). | |
752 | */ | |
753 | static void s3c_fb_free_memory(struct s3c_fb *sfb, struct s3c_fb_win *win) | |
754 | { | |
755 | struct fb_info *fbi = win->fbinfo; | |
756 | ||
757 | dma_free_writecombine(sfb->dev, PAGE_ALIGN(fbi->fix.smem_len), | |
758 | fbi->screen_base, fbi->fix.smem_start); | |
759 | } | |
760 | ||
761 | /** | |
762 | * s3c_fb_release_win() - release resources for a framebuffer window. | |
763 | * @win: The window to cleanup the resources for. | |
764 | * | |
765 | * Release the resources that where claimed for the hardware window, | |
766 | * such as the framebuffer instance and any memory claimed for it. | |
767 | */ | |
768 | static void s3c_fb_release_win(struct s3c_fb *sfb, struct s3c_fb_win *win) | |
769 | { | |
ddc518d9 KH |
770 | if (win->fbinfo) { |
771 | unregister_framebuffer(win->fbinfo); | |
772 | fb_dealloc_cmap(&win->fbinfo->cmap); | |
773 | s3c_fb_free_memory(sfb, win); | |
774 | framebuffer_release(win->fbinfo); | |
775 | } | |
ec549a0f BD |
776 | } |
777 | ||
778 | /** | |
779 | * s3c_fb_probe_win() - register an hardware window | |
780 | * @sfb: The base resources for the hardware | |
50a5503a | 781 | * @variant: The variant information for this window. |
ec549a0f BD |
782 | * @res: Pointer to where to place the resultant window. |
783 | * | |
784 | * Allocate and do the basic initialisation for one of the hardware's graphics | |
785 | * windows. | |
786 | */ | |
787 | static int __devinit s3c_fb_probe_win(struct s3c_fb *sfb, unsigned int win_no, | |
50a5503a | 788 | struct s3c_fb_win_variant *variant, |
ec549a0f BD |
789 | struct s3c_fb_win **res) |
790 | { | |
791 | struct fb_var_screeninfo *var; | |
792 | struct fb_videomode *initmode; | |
793 | struct s3c_fb_pd_win *windata; | |
794 | struct s3c_fb_win *win; | |
795 | struct fb_info *fbinfo; | |
796 | int palette_size; | |
797 | int ret; | |
798 | ||
799 | dev_dbg(sfb->dev, "probing window %d\n", win_no); | |
800 | ||
50a5503a | 801 | palette_size = variant->palette_sz * 4; |
ec549a0f BD |
802 | |
803 | fbinfo = framebuffer_alloc(sizeof(struct s3c_fb_win) + | |
804 | palette_size * sizeof(u32), sfb->dev); | |
805 | if (!fbinfo) { | |
806 | dev_err(sfb->dev, "failed to allocate framebuffer\n"); | |
807 | return -ENOENT; | |
808 | } | |
809 | ||
810 | windata = sfb->pdata->win[win_no]; | |
811 | initmode = &windata->win_mode; | |
812 | ||
813 | WARN_ON(windata->max_bpp == 0); | |
814 | WARN_ON(windata->win_mode.xres == 0); | |
815 | WARN_ON(windata->win_mode.yres == 0); | |
816 | ||
817 | win = fbinfo->par; | |
818 | var = &fbinfo->var; | |
50a5503a | 819 | win->variant = *variant; |
ec549a0f BD |
820 | win->fbinfo = fbinfo; |
821 | win->parent = sfb; | |
822 | win->windata = windata; | |
823 | win->index = win_no; | |
824 | win->palette_buffer = (u32 *)(win + 1); | |
825 | ||
826 | ret = s3c_fb_alloc_memory(sfb, win); | |
827 | if (ret) { | |
828 | dev_err(sfb->dev, "failed to allocate display memory\n"); | |
ddc518d9 | 829 | return ret; |
ec549a0f BD |
830 | } |
831 | ||
832 | /* setup the r/b/g positions for the window's palette */ | |
833 | s3c_fb_init_palette(win_no, &win->palette); | |
834 | ||
835 | /* setup the initial video mode from the window */ | |
836 | fb_videomode_to_var(&fbinfo->var, initmode); | |
837 | ||
838 | fbinfo->fix.type = FB_TYPE_PACKED_PIXELS; | |
839 | fbinfo->fix.accel = FB_ACCEL_NONE; | |
840 | fbinfo->var.activate = FB_ACTIVATE_NOW; | |
841 | fbinfo->var.vmode = FB_VMODE_NONINTERLACED; | |
842 | fbinfo->var.bits_per_pixel = windata->default_bpp; | |
843 | fbinfo->fbops = &s3c_fb_ops; | |
844 | fbinfo->flags = FBINFO_FLAG_DEFAULT; | |
845 | fbinfo->pseudo_palette = &win->pseudo_palette; | |
846 | ||
847 | /* prepare to actually start the framebuffer */ | |
848 | ||
849 | ret = s3c_fb_check_var(&fbinfo->var, fbinfo); | |
850 | if (ret < 0) { | |
851 | dev_err(sfb->dev, "check_var failed on initial video params\n"); | |
ddc518d9 | 852 | return ret; |
ec549a0f BD |
853 | } |
854 | ||
855 | /* create initial colour map */ | |
856 | ||
50a5503a | 857 | ret = fb_alloc_cmap(&fbinfo->cmap, win->variant.palette_sz, 1); |
ec549a0f BD |
858 | if (ret == 0) |
859 | fb_set_cmap(&fbinfo->cmap, fbinfo); | |
860 | else | |
861 | dev_err(sfb->dev, "failed to allocate fb cmap\n"); | |
862 | ||
863 | s3c_fb_set_par(fbinfo); | |
864 | ||
865 | dev_dbg(sfb->dev, "about to register framebuffer\n"); | |
866 | ||
867 | /* run the check_var and set_par on our configuration. */ | |
868 | ||
869 | ret = register_framebuffer(fbinfo); | |
870 | if (ret < 0) { | |
871 | dev_err(sfb->dev, "failed to register framebuffer\n"); | |
ddc518d9 | 872 | return ret; |
ec549a0f BD |
873 | } |
874 | ||
875 | *res = win; | |
876 | dev_info(sfb->dev, "window %d: fb %s\n", win_no, fbinfo->fix.id); | |
877 | ||
878 | return 0; | |
ec549a0f BD |
879 | } |
880 | ||
881 | /** | |
882 | * s3c_fb_clear_win() - clear hardware window registers. | |
883 | * @sfb: The base resources for the hardware. | |
884 | * @win: The window to process. | |
885 | * | |
886 | * Reset the specific window registers to a known state. | |
887 | */ | |
888 | static void s3c_fb_clear_win(struct s3c_fb *sfb, int win) | |
889 | { | |
890 | void __iomem *regs = sfb->regs; | |
891 | ||
892 | writel(0, regs + WINCON(win)); | |
ec549a0f BD |
893 | writel(0, regs + VIDOSD_A(win)); |
894 | writel(0, regs + VIDOSD_B(win)); | |
895 | writel(0, regs + VIDOSD_C(win)); | |
896 | } | |
897 | ||
898 | static int __devinit s3c_fb_probe(struct platform_device *pdev) | |
899 | { | |
50a5503a | 900 | struct s3c_fb_driverdata *fbdrv; |
ec549a0f BD |
901 | struct device *dev = &pdev->dev; |
902 | struct s3c_fb_platdata *pd; | |
903 | struct s3c_fb *sfb; | |
904 | struct resource *res; | |
905 | int win; | |
906 | int ret = 0; | |
907 | ||
50a5503a BD |
908 | fbdrv = (struct s3c_fb_driverdata *)platform_get_device_id(pdev)->driver_data; |
909 | ||
910 | if (fbdrv->variant.nr_windows > S3C_FB_MAX_WIN) { | |
911 | dev_err(dev, "too many windows, cannot attach\n"); | |
912 | return -EINVAL; | |
913 | } | |
914 | ||
ec549a0f BD |
915 | pd = pdev->dev.platform_data; |
916 | if (!pd) { | |
917 | dev_err(dev, "no platform data specified\n"); | |
918 | return -EINVAL; | |
919 | } | |
920 | ||
921 | sfb = kzalloc(sizeof(struct s3c_fb), GFP_KERNEL); | |
922 | if (!sfb) { | |
923 | dev_err(dev, "no memory for framebuffers\n"); | |
924 | return -ENOMEM; | |
925 | } | |
926 | ||
927 | sfb->dev = dev; | |
928 | sfb->pdata = pd; | |
50a5503a | 929 | sfb->variant = fbdrv->variant; |
ec549a0f BD |
930 | |
931 | sfb->bus_clk = clk_get(dev, "lcd"); | |
932 | if (IS_ERR(sfb->bus_clk)) { | |
933 | dev_err(dev, "failed to get bus clock\n"); | |
934 | goto err_sfb; | |
935 | } | |
936 | ||
937 | clk_enable(sfb->bus_clk); | |
938 | ||
939 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); | |
940 | if (!res) { | |
941 | dev_err(dev, "failed to find registers\n"); | |
942 | ret = -ENOENT; | |
943 | goto err_clk; | |
944 | } | |
945 | ||
946 | sfb->regs_res = request_mem_region(res->start, resource_size(res), | |
947 | dev_name(dev)); | |
948 | if (!sfb->regs_res) { | |
949 | dev_err(dev, "failed to claim register region\n"); | |
950 | ret = -ENOENT; | |
951 | goto err_clk; | |
952 | } | |
953 | ||
954 | sfb->regs = ioremap(res->start, resource_size(res)); | |
955 | if (!sfb->regs) { | |
956 | dev_err(dev, "failed to map registers\n"); | |
957 | ret = -ENXIO; | |
958 | goto err_req_region; | |
959 | } | |
960 | ||
961 | dev_dbg(dev, "got resources (regs %p), probing windows\n", sfb->regs); | |
962 | ||
963 | /* setup gpio and output polarity controls */ | |
964 | ||
965 | pd->setup_gpio(); | |
966 | ||
967 | writel(pd->vidcon1, sfb->regs + VIDCON1); | |
968 | ||
969 | /* zero all windows before we do anything */ | |
970 | ||
50a5503a | 971 | for (win = 0; win < fbdrv->variant.nr_windows; win++) |
ec549a0f BD |
972 | s3c_fb_clear_win(sfb, win); |
973 | ||
94947037 | 974 | /* initialise colour key controls */ |
50a5503a | 975 | for (win = 0; win < (fbdrv->variant.nr_windows - 1); win++) { |
94947037 BD |
976 | writel(0xffffff, sfb->regs + WxKEYCONy(win, 0)); |
977 | writel(0xffffff, sfb->regs + WxKEYCONy(win, 1)); | |
978 | } | |
979 | ||
ec549a0f BD |
980 | /* we have the register setup, start allocating framebuffers */ |
981 | ||
50a5503a | 982 | for (win = 0; win < fbdrv->variant.nr_windows; win++) { |
ec549a0f BD |
983 | if (!pd->win[win]) |
984 | continue; | |
985 | ||
50a5503a BD |
986 | ret = s3c_fb_probe_win(sfb, win, fbdrv->win[win], |
987 | &sfb->windows[win]); | |
ec549a0f BD |
988 | if (ret < 0) { |
989 | dev_err(dev, "failed to create window %d\n", win); | |
990 | for (; win >= 0; win--) | |
991 | s3c_fb_release_win(sfb, sfb->windows[win]); | |
992 | goto err_ioremap; | |
993 | } | |
994 | } | |
995 | ||
996 | platform_set_drvdata(pdev, sfb); | |
997 | ||
998 | return 0; | |
999 | ||
1000 | err_ioremap: | |
1001 | iounmap(sfb->regs); | |
1002 | ||
1003 | err_req_region: | |
1004 | release_resource(sfb->regs_res); | |
1005 | kfree(sfb->regs_res); | |
1006 | ||
1007 | err_clk: | |
1008 | clk_disable(sfb->bus_clk); | |
1009 | clk_put(sfb->bus_clk); | |
1010 | ||
1011 | err_sfb: | |
1012 | kfree(sfb); | |
1013 | return ret; | |
1014 | } | |
1015 | ||
1016 | /** | |
1017 | * s3c_fb_remove() - Cleanup on module finalisation | |
1018 | * @pdev: The platform device we are bound to. | |
1019 | * | |
1020 | * Shutdown and then release all the resources that the driver allocated | |
1021 | * on initialisation. | |
1022 | */ | |
1023 | static int __devexit s3c_fb_remove(struct platform_device *pdev) | |
1024 | { | |
1025 | struct s3c_fb *sfb = platform_get_drvdata(pdev); | |
1026 | int win; | |
1027 | ||
c42b110c | 1028 | for (win = 0; win < S3C_FB_MAX_WIN; win++) |
17663e59 MS |
1029 | if (sfb->windows[win]) |
1030 | s3c_fb_release_win(sfb, sfb->windows[win]); | |
ec549a0f BD |
1031 | |
1032 | iounmap(sfb->regs); | |
1033 | ||
1034 | clk_disable(sfb->bus_clk); | |
1035 | clk_put(sfb->bus_clk); | |
1036 | ||
1037 | release_resource(sfb->regs_res); | |
1038 | kfree(sfb->regs_res); | |
1039 | ||
1040 | kfree(sfb); | |
1041 | ||
1042 | return 0; | |
1043 | } | |
1044 | ||
1045 | #ifdef CONFIG_PM | |
1046 | static int s3c_fb_suspend(struct platform_device *pdev, pm_message_t state) | |
1047 | { | |
1048 | struct s3c_fb *sfb = platform_get_drvdata(pdev); | |
1049 | struct s3c_fb_win *win; | |
1050 | int win_no; | |
1051 | ||
c42b110c | 1052 | for (win_no = S3C_FB_MAX_WIN - 1; win_no >= 0; win_no--) { |
ec549a0f BD |
1053 | win = sfb->windows[win_no]; |
1054 | if (!win) | |
1055 | continue; | |
1056 | ||
1057 | /* use the blank function to push into power-down */ | |
1058 | s3c_fb_blank(FB_BLANK_POWERDOWN, win->fbinfo); | |
1059 | } | |
1060 | ||
1061 | clk_disable(sfb->bus_clk); | |
1062 | return 0; | |
1063 | } | |
1064 | ||
1065 | static int s3c_fb_resume(struct platform_device *pdev) | |
1066 | { | |
1067 | struct s3c_fb *sfb = platform_get_drvdata(pdev); | |
17663e59 | 1068 | struct s3c_fb_platdata *pd = sfb->pdata; |
ec549a0f BD |
1069 | struct s3c_fb_win *win; |
1070 | int win_no; | |
1071 | ||
1072 | clk_enable(sfb->bus_clk); | |
1073 | ||
17663e59 MS |
1074 | /* setup registers */ |
1075 | writel(pd->vidcon1, sfb->regs + VIDCON1); | |
1076 | ||
1077 | /* zero all windows before we do anything */ | |
50a5503a | 1078 | for (win_no = 0; win_no < sfb->variant.nr_windows; win_no++) |
17663e59 MS |
1079 | s3c_fb_clear_win(sfb, win_no); |
1080 | ||
50a5503a | 1081 | for (win_no = 0; win_no < sfb->variant.nr_windows - 1; win_no++) { |
94947037 BD |
1082 | writel(0xffffff, sfb->regs + WxKEYCONy(win_no, 1)); |
1083 | writel(0xffffff, sfb->regs + WxKEYCONy(win_no, 1)); | |
1084 | } | |
1085 | ||
17663e59 | 1086 | /* restore framebuffers */ |
ec549a0f BD |
1087 | for (win_no = 0; win_no < S3C_FB_MAX_WIN; win_no++) { |
1088 | win = sfb->windows[win_no]; | |
1089 | if (!win) | |
1090 | continue; | |
1091 | ||
1092 | dev_dbg(&pdev->dev, "resuming window %d\n", win_no); | |
1093 | s3c_fb_set_par(win->fbinfo); | |
1094 | } | |
1095 | ||
1096 | return 0; | |
1097 | } | |
1098 | #else | |
1099 | #define s3c_fb_suspend NULL | |
1100 | #define s3c_fb_resume NULL | |
1101 | #endif | |
1102 | ||
50a5503a BD |
1103 | |
1104 | #define VALID_BPP124 (VALID_BPP(1) | VALID_BPP(2) | VALID_BPP(4)) | |
1105 | #define VALID_BPP1248 (VALID_BPP124 | VALID_BPP(8)) | |
1106 | ||
1107 | static struct s3c_fb_win_variant s3c_fb_data_64xx_wins[] __devinitdata = { | |
1108 | [0] = { | |
1109 | .has_osd_c = 1, | |
1110 | .palette_sz = 256, | |
1111 | .valid_bpp = VALID_BPP1248 | VALID_BPP(16) | VALID_BPP(24), | |
1112 | }, | |
1113 | [1] = { | |
1114 | .has_osd_c = 1, | |
1115 | .has_osd_d = 1, | |
1116 | .palette_sz = 256, | |
1117 | .valid_bpp = (VALID_BPP1248 | VALID_BPP(16) | | |
1118 | VALID_BPP(18) | VALID_BPP(19) | | |
1119 | VALID_BPP(24) | VALID_BPP(25)), | |
1120 | }, | |
1121 | [2] = { | |
1122 | .has_osd_c = 1, | |
1123 | .has_osd_d = 1, | |
1124 | .palette_sz = 16, | |
1125 | .palette_16bpp = 1, | |
1126 | .valid_bpp = (VALID_BPP1248 | VALID_BPP(16) | | |
1127 | VALID_BPP(18) | VALID_BPP(19) | | |
1128 | VALID_BPP(24) | VALID_BPP(25)), | |
1129 | }, | |
1130 | [3] = { | |
1131 | .has_osd_c = 1, | |
1132 | .has_osd_d = 1, | |
1133 | .palette_sz = 16, | |
1134 | .palette_16bpp = 1, | |
1135 | .valid_bpp = (VALID_BPP124 | VALID_BPP(16) | | |
1136 | VALID_BPP(18) | VALID_BPP(19) | | |
1137 | VALID_BPP(24) | VALID_BPP(25)), | |
1138 | }, | |
1139 | [4] = { | |
1140 | .has_osd_c = 1, | |
1141 | .palette_sz = 4, | |
1142 | .palette_16bpp = 1, | |
1143 | .valid_bpp = (VALID_BPP(1) | VALID_BPP(2) | | |
1144 | VALID_BPP(16) | VALID_BPP(18) | | |
1145 | VALID_BPP(24) | VALID_BPP(25)), | |
1146 | }, | |
1147 | }; | |
1148 | ||
1149 | static struct s3c_fb_driverdata s3c_fb_data_64xx __devinitdata = { | |
1150 | .variant = { | |
1151 | .nr_windows = 5, | |
1152 | ||
1153 | .palette = { | |
1154 | [0] = 0x400, | |
1155 | [1] = 0x800, | |
1156 | [2] = 0x300, | |
1157 | [3] = 0x320, | |
1158 | [4] = 0x340, | |
1159 | }, | |
1160 | }, | |
1161 | .win[0] = &s3c_fb_data_64xx_wins[0], | |
1162 | .win[1] = &s3c_fb_data_64xx_wins[1], | |
1163 | .win[2] = &s3c_fb_data_64xx_wins[2], | |
1164 | .win[3] = &s3c_fb_data_64xx_wins[3], | |
1165 | .win[4] = &s3c_fb_data_64xx_wins[4], | |
1166 | }; | |
1167 | ||
1168 | static struct s3c_fb_driverdata s3c_fb_data_s5p __devinitdata = { | |
1169 | .variant = { | |
1170 | .nr_windows = 5, | |
1171 | ||
1172 | .palette = { | |
1173 | [0] = 0x2400, | |
1174 | [1] = 0x2800, | |
1175 | [2] = 0x2c00, | |
1176 | [3] = 0x3000, | |
1177 | [4] = 0x3400, | |
1178 | }, | |
1179 | }, | |
1180 | .win[0] = &s3c_fb_data_64xx_wins[0], | |
1181 | .win[1] = &s3c_fb_data_64xx_wins[1], | |
1182 | .win[2] = &s3c_fb_data_64xx_wins[2], | |
1183 | .win[3] = &s3c_fb_data_64xx_wins[3], | |
1184 | .win[4] = &s3c_fb_data_64xx_wins[4], | |
1185 | }; | |
1186 | ||
1187 | static struct platform_device_id s3c_fb_driver_ids[] = { | |
1188 | { | |
1189 | .name = "s3c-fb", | |
1190 | .driver_data = (unsigned long)&s3c_fb_data_64xx, | |
1191 | }, { | |
1192 | .name = "s5p-fb", | |
1193 | .driver_data = (unsigned long)&s3c_fb_data_s5p, | |
1194 | }, | |
1195 | {}, | |
1196 | }; | |
1197 | MODULE_DEVICE_TABLE(platform, s3c_fb_driver_ids); | |
1198 | ||
ec549a0f BD |
1199 | static struct platform_driver s3c_fb_driver = { |
1200 | .probe = s3c_fb_probe, | |
3163eaba | 1201 | .remove = __devexit_p(s3c_fb_remove), |
ec549a0f BD |
1202 | .suspend = s3c_fb_suspend, |
1203 | .resume = s3c_fb_resume, | |
50a5503a | 1204 | .id_table = s3c_fb_driver_ids, |
ec549a0f BD |
1205 | .driver = { |
1206 | .name = "s3c-fb", | |
1207 | .owner = THIS_MODULE, | |
1208 | }, | |
1209 | }; | |
1210 | ||
1211 | static int __init s3c_fb_init(void) | |
1212 | { | |
1213 | return platform_driver_register(&s3c_fb_driver); | |
1214 | } | |
1215 | ||
1216 | static void __exit s3c_fb_cleanup(void) | |
1217 | { | |
1218 | platform_driver_unregister(&s3c_fb_driver); | |
1219 | } | |
1220 | ||
1221 | module_init(s3c_fb_init); | |
1222 | module_exit(s3c_fb_cleanup); | |
1223 | ||
1224 | MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>"); | |
1225 | MODULE_DESCRIPTION("Samsung S3C SoC Framebuffer driver"); | |
1226 | MODULE_LICENSE("GPL"); | |
1227 | MODULE_ALIAS("platform:s3c-fb"); |