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1 | /* |
2 | * Silicon Motion SM7XX frame buffer device | |
3 | * | |
4 | * Copyright (C) 2006 Silicon Motion Technology Corp. | |
5 | * Authors: Ge Wang, gewang@siliconmotion.com | |
6 | * Boyod boyod.yang@siliconmotion.com.cn | |
7 | * | |
8 | * Copyright (C) 2009 Lemote, Inc. | |
9 | * Author: Wu Zhangjin, wuzhangjin@gmail.com | |
10 | * | |
11 | * Copyright (C) 2011 Igalia, S.L. | |
12 | * Author: Javier M. Mellid <jmunhoz@igalia.com> | |
13 | * | |
14 | * This file is subject to the terms and conditions of the GNU General Public | |
15 | * License. See the file COPYING in the main directory of this archive for | |
16 | * more details. | |
17 | * | |
18 | * Framebuffer driver for Silicon Motion SM710, SM712, SM721 and SM722 chips | |
19 | */ | |
20 | ||
21 | #include <linux/io.h> | |
22 | #include <linux/fb.h> | |
23 | #include <linux/pci.h> | |
24 | #include <linux/init.h> | |
25 | #include <linux/slab.h> | |
26 | #include <linux/uaccess.h> | |
27 | #include <linux/module.h> | |
28 | #include <linux/console.h> | |
29 | #include <linux/screen_info.h> | |
30 | ||
31 | #ifdef CONFIG_PM | |
32 | #include <linux/pm.h> | |
33 | #endif | |
34 | ||
35 | #include "sm7xx.h" | |
36 | ||
37 | /* | |
38 | * Private structure | |
39 | */ | |
40 | struct smtcfb_info { | |
41 | struct pci_dev *pdev; | |
42 | struct fb_info fb; | |
43 | u16 chip_id; | |
44 | u8 chip_rev_id; | |
45 | ||
46 | void __iomem *lfb; /* linear frame buffer */ | |
47 | void __iomem *dp_regs; /* drawing processor control regs */ | |
48 | void __iomem *vp_regs; /* video processor control regs */ | |
49 | void __iomem *cp_regs; /* capture processor control regs */ | |
50 | void __iomem *mmio; /* memory map IO port */ | |
51 | ||
52 | u_int width; | |
53 | u_int height; | |
54 | u_int hz; | |
55 | ||
56 | u32 colreg[17]; | |
57 | }; | |
58 | ||
59 | void __iomem *smtc_RegBaseAddress; /* Memory Map IO starting address */ | |
60 | ||
61 | static struct fb_var_screeninfo smtcfb_var = { | |
62 | .xres = 1024, | |
63 | .yres = 600, | |
64 | .xres_virtual = 1024, | |
65 | .yres_virtual = 600, | |
66 | .bits_per_pixel = 16, | |
67 | .red = {16, 8, 0}, | |
68 | .green = {8, 8, 0}, | |
69 | .blue = {0, 8, 0}, | |
70 | .activate = FB_ACTIVATE_NOW, | |
71 | .height = -1, | |
72 | .width = -1, | |
73 | .vmode = FB_VMODE_NONINTERLACED, | |
74 | .nonstd = 0, | |
75 | .accel_flags = FB_ACCELF_TEXT, | |
76 | }; | |
77 | ||
78 | static struct fb_fix_screeninfo smtcfb_fix = { | |
79 | .id = "smXXXfb", | |
80 | .type = FB_TYPE_PACKED_PIXELS, | |
81 | .visual = FB_VISUAL_TRUECOLOR, | |
82 | .line_length = 800 * 3, | |
83 | .accel = FB_ACCEL_SMI_LYNX, | |
84 | .type_aux = 0, | |
85 | .xpanstep = 0, | |
86 | .ypanstep = 0, | |
87 | .ywrapstep = 0, | |
88 | }; | |
89 | ||
90 | struct vesa_mode { | |
91 | char index[6]; | |
92 | u16 lfb_width; | |
93 | u16 lfb_height; | |
94 | u16 lfb_depth; | |
95 | }; | |
96 | ||
97 | static struct vesa_mode vesa_mode_table[] = { | |
98 | {"0x301", 640, 480, 8}, | |
99 | {"0x303", 800, 600, 8}, | |
100 | {"0x305", 1024, 768, 8}, | |
101 | {"0x307", 1280, 1024, 8}, | |
102 | ||
103 | {"0x311", 640, 480, 16}, | |
104 | {"0x314", 800, 600, 16}, | |
105 | {"0x317", 1024, 768, 16}, | |
106 | {"0x31A", 1280, 1024, 16}, | |
107 | ||
108 | {"0x312", 640, 480, 24}, | |
109 | {"0x315", 800, 600, 24}, | |
110 | {"0x318", 1024, 768, 24}, | |
111 | {"0x31B", 1280, 1024, 24}, | |
112 | }; | |
113 | ||
114 | struct screen_info smtc_scr_info; | |
115 | ||
116 | /* process command line options, get vga parameter */ | |
117 | static int __init sm7xx_vga_setup(char *options) | |
118 | { | |
119 | int i; | |
120 | ||
121 | if (!options || !*options) | |
122 | return -EINVAL; | |
123 | ||
124 | smtc_scr_info.lfb_width = 0; | |
125 | smtc_scr_info.lfb_height = 0; | |
126 | smtc_scr_info.lfb_depth = 0; | |
127 | ||
128 | pr_debug("sm7xx_vga_setup = %s\n", options); | |
129 | ||
130 | for (i = 0; i < ARRAY_SIZE(vesa_mode_table); i++) { | |
131 | if (strstr(options, vesa_mode_table[i].index)) { | |
132 | smtc_scr_info.lfb_width = vesa_mode_table[i].lfb_width; | |
133 | smtc_scr_info.lfb_height = | |
134 | vesa_mode_table[i].lfb_height; | |
135 | smtc_scr_info.lfb_depth = vesa_mode_table[i].lfb_depth; | |
136 | return 0; | |
137 | } | |
138 | } | |
139 | ||
140 | return -1; | |
141 | } | |
142 | __setup("vga=", sm7xx_vga_setup); | |
143 | ||
144 | static void sm712_setpalette(int regno, unsigned red, unsigned green, | |
145 | unsigned blue, struct fb_info *info) | |
146 | { | |
147 | /* set bit 5:4 = 01 (write LCD RAM only) */ | |
148 | smtc_seqw(0x66, (smtc_seqr(0x66) & 0xC3) | 0x10); | |
149 | ||
150 | smtc_mmiowb(regno, dac_reg); | |
151 | smtc_mmiowb(red >> 10, dac_val); | |
152 | smtc_mmiowb(green >> 10, dac_val); | |
153 | smtc_mmiowb(blue >> 10, dac_val); | |
154 | } | |
155 | ||
156 | /* chan_to_field | |
157 | * | |
158 | * convert a colour value into a field position | |
159 | * | |
160 | * from pxafb.c | |
161 | */ | |
162 | ||
163 | static inline unsigned int chan_to_field(unsigned int chan, | |
164 | struct fb_bitfield *bf) | |
165 | { | |
166 | chan &= 0xffff; | |
167 | chan >>= 16 - bf->length; | |
168 | return chan << bf->offset; | |
169 | } | |
170 | ||
171 | static int smtc_blank(int blank_mode, struct fb_info *info) | |
172 | { | |
173 | /* clear DPMS setting */ | |
174 | switch (blank_mode) { | |
175 | case FB_BLANK_UNBLANK: | |
176 | /* Screen On: HSync: On, VSync : On */ | |
177 | smtc_seqw(0x01, (smtc_seqr(0x01) & (~0x20))); | |
178 | smtc_seqw(0x6a, 0x16); | |
179 | smtc_seqw(0x6b, 0x02); | |
180 | smtc_seqw(0x21, (smtc_seqr(0x21) & 0x77)); | |
181 | smtc_seqw(0x22, (smtc_seqr(0x22) & (~0x30))); | |
182 | smtc_seqw(0x23, (smtc_seqr(0x23) & (~0xc0))); | |
183 | smtc_seqw(0x24, (smtc_seqr(0x24) | 0x01)); | |
184 | smtc_seqw(0x31, (smtc_seqr(0x31) | 0x03)); | |
185 | break; | |
186 | case FB_BLANK_NORMAL: | |
187 | /* Screen Off: HSync: On, VSync : On Soft blank */ | |
188 | smtc_seqw(0x01, (smtc_seqr(0x01) & (~0x20))); | |
189 | smtc_seqw(0x6a, 0x16); | |
190 | smtc_seqw(0x6b, 0x02); | |
191 | smtc_seqw(0x22, (smtc_seqr(0x22) & (~0x30))); | |
192 | smtc_seqw(0x23, (smtc_seqr(0x23) & (~0xc0))); | |
193 | smtc_seqw(0x24, (smtc_seqr(0x24) | 0x01)); | |
194 | smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00)); | |
195 | break; | |
196 | case FB_BLANK_VSYNC_SUSPEND: | |
197 | /* Screen On: HSync: On, VSync : Off */ | |
198 | smtc_seqw(0x01, (smtc_seqr(0x01) | 0x20)); | |
199 | smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0))); | |
200 | smtc_seqw(0x6a, 0x0c); | |
201 | smtc_seqw(0x6b, 0x02); | |
202 | smtc_seqw(0x21, (smtc_seqr(0x21) | 0x88)); | |
203 | smtc_seqw(0x22, ((smtc_seqr(0x22) & (~0x30)) | 0x20)); | |
204 | smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0x20)); | |
205 | smtc_seqw(0x24, (smtc_seqr(0x24) & (~0x01))); | |
206 | smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00)); | |
207 | smtc_seqw(0x34, (smtc_seqr(0x34) | 0x80)); | |
208 | break; | |
209 | case FB_BLANK_HSYNC_SUSPEND: | |
210 | /* Screen On: HSync: Off, VSync : On */ | |
211 | smtc_seqw(0x01, (smtc_seqr(0x01) | 0x20)); | |
212 | smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0))); | |
213 | smtc_seqw(0x6a, 0x0c); | |
214 | smtc_seqw(0x6b, 0x02); | |
215 | smtc_seqw(0x21, (smtc_seqr(0x21) | 0x88)); | |
216 | smtc_seqw(0x22, ((smtc_seqr(0x22) & (~0x30)) | 0x10)); | |
217 | smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0xD8)); | |
218 | smtc_seqw(0x24, (smtc_seqr(0x24) & (~0x01))); | |
219 | smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00)); | |
220 | smtc_seqw(0x34, (smtc_seqr(0x34) | 0x80)); | |
221 | break; | |
222 | case FB_BLANK_POWERDOWN: | |
223 | /* Screen On: HSync: Off, VSync : Off */ | |
224 | smtc_seqw(0x01, (smtc_seqr(0x01) | 0x20)); | |
225 | smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0))); | |
226 | smtc_seqw(0x6a, 0x0c); | |
227 | smtc_seqw(0x6b, 0x02); | |
228 | smtc_seqw(0x21, (smtc_seqr(0x21) | 0x88)); | |
229 | smtc_seqw(0x22, ((smtc_seqr(0x22) & (~0x30)) | 0x30)); | |
230 | smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0xD8)); | |
231 | smtc_seqw(0x24, (smtc_seqr(0x24) & (~0x01))); | |
232 | smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00)); | |
233 | smtc_seqw(0x34, (smtc_seqr(0x34) | 0x80)); | |
234 | break; | |
235 | default: | |
236 | return -EINVAL; | |
237 | } | |
238 | ||
239 | return 0; | |
240 | } | |
241 | ||
242 | static int smtc_setcolreg(unsigned regno, unsigned red, unsigned green, | |
243 | unsigned blue, unsigned trans, struct fb_info *info) | |
244 | { | |
245 | struct smtcfb_info *sfb; | |
246 | u32 val; | |
247 | ||
248 | sfb = info->par; | |
249 | ||
250 | if (regno > 255) | |
251 | return 1; | |
252 | ||
253 | switch (sfb->fb.fix.visual) { | |
254 | case FB_VISUAL_DIRECTCOLOR: | |
255 | case FB_VISUAL_TRUECOLOR: | |
256 | /* | |
257 | * 16/32 bit true-colour, use pseudo-palette for 16 base color | |
258 | */ | |
259 | if (regno < 16) { | |
260 | if (sfb->fb.var.bits_per_pixel == 16) { | |
261 | u32 *pal = sfb->fb.pseudo_palette; | |
262 | val = chan_to_field(red, &sfb->fb.var.red); | |
263 | val |= chan_to_field(green, &sfb->fb.var.green); | |
264 | val |= chan_to_field(blue, &sfb->fb.var.blue); | |
265 | #ifdef __BIG_ENDIAN | |
266 | pal[regno] = | |
267 | ((red & 0xf800) >> 8) | | |
268 | ((green & 0xe000) >> 13) | | |
269 | ((green & 0x1c00) << 3) | | |
270 | ((blue & 0xf800) >> 3); | |
271 | #else | |
272 | pal[regno] = val; | |
273 | #endif | |
274 | } else { | |
275 | u32 *pal = sfb->fb.pseudo_palette; | |
276 | val = chan_to_field(red, &sfb->fb.var.red); | |
277 | val |= chan_to_field(green, &sfb->fb.var.green); | |
278 | val |= chan_to_field(blue, &sfb->fb.var.blue); | |
279 | #ifdef __BIG_ENDIAN | |
280 | val = | |
281 | (val & 0xff00ff00 >> 8) | | |
282 | (val & 0x00ff00ff << 8); | |
283 | #endif | |
284 | pal[regno] = val; | |
285 | } | |
286 | } | |
287 | break; | |
288 | ||
289 | case FB_VISUAL_PSEUDOCOLOR: | |
290 | /* color depth 8 bit */ | |
291 | sm712_setpalette(regno, red, green, blue, info); | |
292 | break; | |
293 | ||
294 | default: | |
295 | return 1; /* unknown type */ | |
296 | } | |
297 | ||
298 | return 0; | |
299 | ||
300 | } | |
301 | ||
302 | #ifdef __BIG_ENDIAN | |
303 | static ssize_t smtcfb_read(struct fb_info *info, char __user *buf, size_t | |
304 | count, loff_t *ppos) | |
305 | { | |
306 | unsigned long p = *ppos; | |
307 | ||
308 | u32 *buffer, *dst; | |
309 | u32 __iomem *src; | |
310 | int c, i, cnt = 0, err = 0; | |
311 | unsigned long total_size; | |
312 | ||
313 | if (!info || !info->screen_base) | |
314 | return -ENODEV; | |
315 | ||
316 | if (info->state != FBINFO_STATE_RUNNING) | |
317 | return -EPERM; | |
318 | ||
319 | total_size = info->screen_size; | |
320 | ||
321 | if (total_size == 0) | |
322 | total_size = info->fix.smem_len; | |
323 | ||
324 | if (p >= total_size) | |
325 | return 0; | |
326 | ||
327 | if (count >= total_size) | |
328 | count = total_size; | |
329 | ||
330 | if (count + p > total_size) | |
331 | count = total_size - p; | |
332 | ||
333 | buffer = kmalloc((count > PAGE_SIZE) ? PAGE_SIZE : count, GFP_KERNEL); | |
334 | if (!buffer) | |
335 | return -ENOMEM; | |
336 | ||
337 | src = (u32 __iomem *) (info->screen_base + p); | |
338 | ||
339 | if (info->fbops->fb_sync) | |
340 | info->fbops->fb_sync(info); | |
341 | ||
342 | while (count) { | |
343 | c = (count > PAGE_SIZE) ? PAGE_SIZE : count; | |
344 | dst = buffer; | |
345 | for (i = c >> 2; i--;) { | |
346 | *dst = fb_readl(src++); | |
347 | *dst = | |
348 | (*dst & 0xff00ff00 >> 8) | | |
349 | (*dst & 0x00ff00ff << 8); | |
350 | dst++; | |
351 | } | |
352 | if (c & 3) { | |
353 | u8 *dst8 = (u8 *) dst; | |
354 | u8 __iomem *src8 = (u8 __iomem *) src; | |
355 | ||
356 | for (i = c & 3; i--;) { | |
357 | if (i & 1) { | |
358 | *dst8++ = fb_readb(++src8); | |
359 | } else { | |
360 | *dst8++ = fb_readb(--src8); | |
361 | src8 += 2; | |
362 | } | |
363 | } | |
364 | src = (u32 __iomem *) src8; | |
365 | } | |
366 | ||
367 | if (copy_to_user(buf, buffer, c)) { | |
368 | err = -EFAULT; | |
369 | break; | |
370 | } | |
371 | *ppos += c; | |
372 | buf += c; | |
373 | cnt += c; | |
374 | count -= c; | |
375 | } | |
376 | ||
377 | kfree(buffer); | |
378 | ||
379 | return (err) ? err : cnt; | |
380 | } | |
381 | ||
382 | static ssize_t | |
383 | smtcfb_write(struct fb_info *info, const char __user *buf, size_t count, | |
384 | loff_t *ppos) | |
385 | { | |
386 | unsigned long p = *ppos; | |
387 | ||
388 | u32 *buffer, *src; | |
389 | u32 __iomem *dst; | |
390 | int c, i, cnt = 0, err = 0; | |
391 | unsigned long total_size; | |
392 | ||
393 | if (!info || !info->screen_base) | |
394 | return -ENODEV; | |
395 | ||
396 | if (info->state != FBINFO_STATE_RUNNING) | |
397 | return -EPERM; | |
398 | ||
399 | total_size = info->screen_size; | |
400 | ||
401 | if (total_size == 0) | |
402 | total_size = info->fix.smem_len; | |
403 | ||
404 | if (p > total_size) | |
405 | return -EFBIG; | |
406 | ||
407 | if (count > total_size) { | |
408 | err = -EFBIG; | |
409 | count = total_size; | |
410 | } | |
411 | ||
412 | if (count + p > total_size) { | |
413 | if (!err) | |
414 | err = -ENOSPC; | |
415 | ||
416 | count = total_size - p; | |
417 | } | |
418 | ||
419 | buffer = kmalloc((count > PAGE_SIZE) ? PAGE_SIZE : count, GFP_KERNEL); | |
420 | if (!buffer) | |
421 | return -ENOMEM; | |
422 | ||
423 | dst = (u32 __iomem *) (info->screen_base + p); | |
424 | ||
425 | if (info->fbops->fb_sync) | |
426 | info->fbops->fb_sync(info); | |
427 | ||
428 | while (count) { | |
429 | c = (count > PAGE_SIZE) ? PAGE_SIZE : count; | |
430 | src = buffer; | |
431 | ||
432 | if (copy_from_user(src, buf, c)) { | |
433 | err = -EFAULT; | |
434 | break; | |
435 | } | |
436 | ||
437 | for (i = c >> 2; i--;) { | |
438 | fb_writel((*src & 0xff00ff00 >> 8) | | |
439 | (*src & 0x00ff00ff << 8), dst++); | |
440 | src++; | |
441 | } | |
442 | if (c & 3) { | |
443 | u8 *src8 = (u8 *) src; | |
444 | u8 __iomem *dst8 = (u8 __iomem *) dst; | |
445 | ||
446 | for (i = c & 3; i--;) { | |
447 | if (i & 1) { | |
448 | fb_writeb(*src8++, ++dst8); | |
449 | } else { | |
450 | fb_writeb(*src8++, --dst8); | |
451 | dst8 += 2; | |
452 | } | |
453 | } | |
454 | dst = (u32 __iomem *) dst8; | |
455 | } | |
456 | ||
457 | *ppos += c; | |
458 | buf += c; | |
459 | cnt += c; | |
460 | count -= c; | |
461 | } | |
462 | ||
463 | kfree(buffer); | |
464 | ||
465 | return (cnt) ? cnt : err; | |
466 | } | |
467 | #endif /* ! __BIG_ENDIAN */ | |
468 | ||
469 | static void sm7xx_set_timing(struct smtcfb_info *sfb) | |
470 | { | |
471 | int i = 0, j = 0; | |
472 | u32 m_nScreenStride; | |
473 | ||
474 | dev_dbg(&sfb->pdev->dev, | |
475 | "sfb->width=%d sfb->height=%d sfb->fb.var.bits_per_pixel=%d sfb->hz=%d\n", | |
476 | sfb->width, sfb->height, sfb->fb.var.bits_per_pixel, sfb->hz); | |
477 | ||
478 | for (j = 0; j < numVGAModes; j++) { | |
479 | if (VGAMode[j].mmSizeX == sfb->width && | |
480 | VGAMode[j].mmSizeY == sfb->height && | |
481 | VGAMode[j].bpp == sfb->fb.var.bits_per_pixel && | |
482 | VGAMode[j].hz == sfb->hz) { | |
483 | ||
484 | dev_dbg(&sfb->pdev->dev, | |
485 | "VGAMode[j].mmSizeX=%d VGAMode[j].mmSizeY=%d VGAMode[j].bpp=%d VGAMode[j].hz=%d\n", | |
486 | VGAMode[j].mmSizeX, VGAMode[j].mmSizeY, | |
487 | VGAMode[j].bpp, VGAMode[j].hz); | |
488 | ||
489 | dev_dbg(&sfb->pdev->dev, "VGAMode index=%d\n", j); | |
490 | ||
491 | smtc_mmiowb(0x0, 0x3c6); | |
492 | ||
493 | smtc_seqw(0, 0x1); | |
494 | ||
495 | smtc_mmiowb(VGAMode[j].Init_MISC, 0x3c2); | |
496 | ||
497 | /* init SEQ register SR00 - SR04 */ | |
498 | for (i = 0; i < SIZE_SR00_SR04; i++) | |
499 | smtc_seqw(i, VGAMode[j].Init_SR00_SR04[i]); | |
500 | ||
501 | /* init SEQ register SR10 - SR24 */ | |
502 | for (i = 0; i < SIZE_SR10_SR24; i++) | |
503 | smtc_seqw(i + 0x10, | |
504 | VGAMode[j].Init_SR10_SR24[i]); | |
505 | ||
506 | /* init SEQ register SR30 - SR75 */ | |
507 | for (i = 0; i < SIZE_SR30_SR75; i++) | |
508 | if ((i + 0x30) != 0x62 && | |
509 | (i + 0x30) != 0x6a && | |
510 | (i + 0x30) != 0x6b) | |
511 | smtc_seqw(i + 0x30, | |
512 | VGAMode[j].Init_SR30_SR75[i]); | |
513 | ||
514 | /* init SEQ register SR80 - SR93 */ | |
515 | for (i = 0; i < SIZE_SR80_SR93; i++) | |
516 | smtc_seqw(i + 0x80, | |
517 | VGAMode[j].Init_SR80_SR93[i]); | |
518 | ||
519 | /* init SEQ register SRA0 - SRAF */ | |
520 | for (i = 0; i < SIZE_SRA0_SRAF; i++) | |
521 | smtc_seqw(i + 0xa0, | |
522 | VGAMode[j].Init_SRA0_SRAF[i]); | |
523 | ||
524 | /* init Graphic register GR00 - GR08 */ | |
525 | for (i = 0; i < SIZE_GR00_GR08; i++) | |
526 | smtc_grphw(i, VGAMode[j].Init_GR00_GR08[i]); | |
527 | ||
528 | /* init Attribute register AR00 - AR14 */ | |
529 | for (i = 0; i < SIZE_AR00_AR14; i++) | |
530 | smtc_attrw(i, VGAMode[j].Init_AR00_AR14[i]); | |
531 | ||
532 | /* init CRTC register CR00 - CR18 */ | |
533 | for (i = 0; i < SIZE_CR00_CR18; i++) | |
534 | smtc_crtcw(i, VGAMode[j].Init_CR00_CR18[i]); | |
535 | ||
536 | /* init CRTC register CR30 - CR4D */ | |
537 | for (i = 0; i < SIZE_CR30_CR4D; i++) | |
538 | smtc_crtcw(i + 0x30, | |
539 | VGAMode[j].Init_CR30_CR4D[i]); | |
540 | ||
541 | /* init CRTC register CR90 - CRA7 */ | |
542 | for (i = 0; i < SIZE_CR90_CRA7; i++) | |
543 | smtc_crtcw(i + 0x90, | |
544 | VGAMode[j].Init_CR90_CRA7[i]); | |
545 | } | |
546 | } | |
547 | smtc_mmiowb(0x67, 0x3c2); | |
548 | ||
549 | /* set VPR registers */ | |
550 | writel(0x0, sfb->vp_regs + 0x0C); | |
551 | writel(0x0, sfb->vp_regs + 0x40); | |
552 | ||
553 | /* set data width */ | |
554 | m_nScreenStride = | |
555 | (sfb->width * sfb->fb.var.bits_per_pixel) / 64; | |
556 | switch (sfb->fb.var.bits_per_pixel) { | |
557 | case 8: | |
558 | writel(0x0, sfb->vp_regs + 0x0); | |
559 | break; | |
560 | case 16: | |
561 | writel(0x00020000, sfb->vp_regs + 0x0); | |
562 | break; | |
563 | case 24: | |
564 | writel(0x00040000, sfb->vp_regs + 0x0); | |
565 | break; | |
566 | case 32: | |
567 | writel(0x00030000, sfb->vp_regs + 0x0); | |
568 | break; | |
569 | } | |
570 | writel((u32) (((m_nScreenStride + 2) << 16) | m_nScreenStride), | |
571 | sfb->vp_regs + 0x10); | |
572 | ||
573 | } | |
574 | ||
575 | static void smtc_set_timing(struct smtcfb_info *sfb) | |
576 | { | |
577 | switch (sfb->chip_id) { | |
578 | case 0x710: | |
579 | case 0x712: | |
580 | case 0x720: | |
581 | sm7xx_set_timing(sfb); | |
582 | break; | |
583 | } | |
584 | } | |
585 | ||
586 | static void smtcfb_setmode(struct smtcfb_info *sfb) | |
587 | { | |
588 | switch (sfb->fb.var.bits_per_pixel) { | |
589 | case 32: | |
590 | sfb->fb.fix.visual = FB_VISUAL_TRUECOLOR; | |
591 | sfb->fb.fix.line_length = sfb->fb.var.xres * 4; | |
592 | sfb->fb.var.red.length = 8; | |
593 | sfb->fb.var.green.length = 8; | |
594 | sfb->fb.var.blue.length = 8; | |
595 | sfb->fb.var.red.offset = 16; | |
596 | sfb->fb.var.green.offset = 8; | |
597 | sfb->fb.var.blue.offset = 0; | |
598 | break; | |
599 | case 24: | |
600 | sfb->fb.fix.visual = FB_VISUAL_TRUECOLOR; | |
601 | sfb->fb.fix.line_length = sfb->fb.var.xres * 3; | |
602 | sfb->fb.var.red.length = 8; | |
603 | sfb->fb.var.green.length = 8; | |
604 | sfb->fb.var.blue.length = 8; | |
605 | sfb->fb.var.red.offset = 16; | |
606 | sfb->fb.var.green.offset = 8; | |
607 | sfb->fb.var.blue.offset = 0; | |
608 | break; | |
609 | case 8: | |
610 | sfb->fb.fix.visual = FB_VISUAL_PSEUDOCOLOR; | |
611 | sfb->fb.fix.line_length = sfb->fb.var.xres; | |
612 | sfb->fb.var.red.length = 3; | |
613 | sfb->fb.var.green.length = 3; | |
614 | sfb->fb.var.blue.length = 2; | |
615 | sfb->fb.var.red.offset = 5; | |
616 | sfb->fb.var.green.offset = 2; | |
617 | sfb->fb.var.blue.offset = 0; | |
618 | break; | |
619 | case 16: | |
620 | default: | |
621 | sfb->fb.fix.visual = FB_VISUAL_TRUECOLOR; | |
622 | sfb->fb.fix.line_length = sfb->fb.var.xres * 2; | |
623 | sfb->fb.var.red.length = 5; | |
624 | sfb->fb.var.green.length = 6; | |
625 | sfb->fb.var.blue.length = 5; | |
626 | sfb->fb.var.red.offset = 11; | |
627 | sfb->fb.var.green.offset = 5; | |
628 | sfb->fb.var.blue.offset = 0; | |
629 | break; | |
630 | } | |
631 | ||
632 | sfb->width = sfb->fb.var.xres; | |
633 | sfb->height = sfb->fb.var.yres; | |
634 | sfb->hz = 60; | |
635 | smtc_set_timing(sfb); | |
636 | } | |
637 | ||
638 | static int smtc_check_var(struct fb_var_screeninfo *var, struct fb_info *info) | |
639 | { | |
640 | /* sanity checks */ | |
641 | if (var->xres_virtual < var->xres) | |
642 | var->xres_virtual = var->xres; | |
643 | ||
644 | if (var->yres_virtual < var->yres) | |
645 | var->yres_virtual = var->yres; | |
646 | ||
647 | /* set valid default bpp */ | |
648 | if ((var->bits_per_pixel != 8) && (var->bits_per_pixel != 16) && | |
649 | (var->bits_per_pixel != 24) && (var->bits_per_pixel != 32)) | |
650 | var->bits_per_pixel = 16; | |
651 | ||
652 | return 0; | |
653 | } | |
654 | ||
655 | static int smtc_set_par(struct fb_info *info) | |
656 | { | |
657 | smtcfb_setmode(info->par); | |
658 | ||
659 | return 0; | |
660 | } | |
661 | ||
662 | static struct fb_ops smtcfb_ops = { | |
663 | .owner = THIS_MODULE, | |
664 | .fb_check_var = smtc_check_var, | |
665 | .fb_set_par = smtc_set_par, | |
666 | .fb_setcolreg = smtc_setcolreg, | |
667 | .fb_blank = smtc_blank, | |
668 | .fb_fillrect = cfb_fillrect, | |
669 | .fb_imageblit = cfb_imageblit, | |
670 | .fb_copyarea = cfb_copyarea, | |
671 | #ifdef __BIG_ENDIAN | |
672 | .fb_read = smtcfb_read, | |
673 | .fb_write = smtcfb_write, | |
674 | #endif | |
675 | }; | |
676 | ||
677 | /* | |
678 | * alloc struct smtcfb_info and assign default values | |
679 | */ | |
680 | static struct smtcfb_info *smtc_alloc_fb_info(struct pci_dev *pdev) | |
681 | { | |
682 | struct smtcfb_info *sfb; | |
683 | ||
684 | sfb = kzalloc(sizeof(*sfb), GFP_KERNEL); | |
685 | ||
686 | if (!sfb) | |
687 | return NULL; | |
688 | ||
689 | sfb->pdev = pdev; | |
690 | ||
691 | sfb->fb.flags = FBINFO_FLAG_DEFAULT; | |
692 | sfb->fb.fbops = &smtcfb_ops; | |
693 | sfb->fb.fix = smtcfb_fix; | |
694 | sfb->fb.var = smtcfb_var; | |
695 | sfb->fb.pseudo_palette = sfb->colreg; | |
696 | sfb->fb.par = sfb; | |
697 | ||
698 | return sfb; | |
699 | } | |
700 | ||
701 | /* | |
702 | * free struct smtcfb_info | |
703 | */ | |
704 | static void smtc_free_fb_info(struct smtcfb_info *sfb) | |
705 | { | |
706 | kfree(sfb); | |
707 | } | |
708 | ||
709 | /* | |
710 | * Unmap in the memory mapped IO registers | |
711 | */ | |
712 | ||
713 | static void smtc_unmap_mmio(struct smtcfb_info *sfb) | |
714 | { | |
715 | if (sfb && smtc_RegBaseAddress) | |
716 | smtc_RegBaseAddress = NULL; | |
717 | } | |
718 | ||
719 | /* | |
720 | * Map in the screen memory | |
721 | */ | |
722 | ||
723 | static int smtc_map_smem(struct smtcfb_info *sfb, | |
724 | struct pci_dev *pdev, u_long smem_len) | |
725 | { | |
726 | ||
727 | sfb->fb.fix.smem_start = pci_resource_start(pdev, 0); | |
728 | ||
729 | #ifdef __BIG_ENDIAN | |
730 | if (sfb->fb.var.bits_per_pixel == 32) | |
731 | sfb->fb.fix.smem_start += 0x800000; | |
732 | #endif | |
733 | ||
734 | sfb->fb.fix.smem_len = smem_len; | |
735 | ||
736 | sfb->fb.screen_base = sfb->lfb; | |
737 | ||
738 | if (!sfb->fb.screen_base) { | |
739 | dev_err(&pdev->dev, | |
740 | "%s: unable to map screen memory\n", sfb->fb.fix.id); | |
741 | return -ENOMEM; | |
742 | } | |
743 | ||
744 | return 0; | |
745 | } | |
746 | ||
747 | /* | |
748 | * Unmap in the screen memory | |
749 | * | |
750 | */ | |
751 | static void smtc_unmap_smem(struct smtcfb_info *sfb) | |
752 | { | |
753 | if (sfb && sfb->fb.screen_base) { | |
754 | iounmap(sfb->fb.screen_base); | |
755 | sfb->fb.screen_base = NULL; | |
756 | } | |
757 | } | |
758 | ||
759 | /* | |
760 | * We need to wake up the device and make sure its in linear memory mode. | |
761 | */ | |
762 | static inline void sm7xx_init_hw(void) | |
763 | { | |
764 | outb_p(0x18, 0x3c4); | |
765 | outb_p(0x11, 0x3c5); | |
766 | } | |
767 | ||
768 | static int smtcfb_pci_probe(struct pci_dev *pdev, | |
769 | const struct pci_device_id *ent) | |
770 | { | |
771 | struct smtcfb_info *sfb; | |
772 | u_long smem_size = 0x00800000; /* default 8MB */ | |
773 | int err; | |
774 | unsigned long mmio_base; | |
775 | ||
776 | dev_info(&pdev->dev, "Silicon Motion display driver."); | |
777 | ||
778 | err = pci_enable_device(pdev); /* enable SMTC chip */ | |
779 | if (err) | |
780 | return err; | |
781 | ||
782 | sprintf(smtcfb_fix.id, "sm%Xfb", ent->device); | |
783 | ||
784 | sfb = smtc_alloc_fb_info(pdev); | |
785 | ||
786 | if (!sfb) { | |
787 | err = -ENOMEM; | |
788 | goto failed_free; | |
789 | } | |
790 | ||
791 | sfb->chip_id = ent->device; | |
792 | ||
793 | pci_set_drvdata(pdev, sfb); | |
794 | ||
795 | sm7xx_init_hw(); | |
796 | ||
797 | /* get mode parameter from smtc_scr_info */ | |
798 | if (smtc_scr_info.lfb_width != 0) { | |
799 | sfb->fb.var.xres = smtc_scr_info.lfb_width; | |
800 | sfb->fb.var.yres = smtc_scr_info.lfb_height; | |
801 | sfb->fb.var.bits_per_pixel = smtc_scr_info.lfb_depth; | |
802 | } else { | |
803 | /* default resolution 1024x600 16bit mode */ | |
804 | sfb->fb.var.xres = SCREEN_X_RES; | |
805 | sfb->fb.var.yres = SCREEN_Y_RES; | |
806 | sfb->fb.var.bits_per_pixel = SCREEN_BPP; | |
807 | } | |
808 | ||
809 | #ifdef __BIG_ENDIAN | |
810 | if (sfb->fb.var.bits_per_pixel == 24) | |
811 | sfb->fb.var.bits_per_pixel = (smtc_scr_info.lfb_depth = 32); | |
812 | #endif | |
813 | /* Map address and memory detection */ | |
814 | mmio_base = pci_resource_start(pdev, 0); | |
815 | pci_read_config_byte(pdev, PCI_REVISION_ID, &sfb->chip_rev_id); | |
816 | ||
817 | switch (sfb->chip_id) { | |
818 | case 0x710: | |
819 | case 0x712: | |
820 | sfb->fb.fix.mmio_start = mmio_base + 0x00400000; | |
821 | sfb->fb.fix.mmio_len = 0x00400000; | |
822 | smem_size = SM712_VIDEOMEMORYSIZE; | |
823 | #ifdef __BIG_ENDIAN | |
824 | sfb->lfb = ioremap(mmio_base, 0x00c00000); | |
825 | #else | |
826 | sfb->lfb = ioremap(mmio_base, 0x00800000); | |
827 | #endif | |
828 | sfb->mmio = (smtc_RegBaseAddress = | |
829 | sfb->lfb + 0x00700000); | |
830 | sfb->dp_regs = sfb->lfb + 0x00408000; | |
831 | sfb->vp_regs = sfb->lfb + 0x0040c000; | |
832 | #ifdef __BIG_ENDIAN | |
833 | if (sfb->fb.var.bits_per_pixel == 32) { | |
834 | sfb->lfb += 0x800000; | |
835 | dev_info(&pdev->dev, "sfb->lfb=%p", sfb->lfb); | |
836 | } | |
837 | #endif | |
838 | if (!smtc_RegBaseAddress) { | |
839 | dev_err(&pdev->dev, | |
840 | "%s: unable to map memory mapped IO!", | |
841 | sfb->fb.fix.id); | |
842 | err = -ENOMEM; | |
843 | goto failed_fb; | |
844 | } | |
845 | ||
846 | /* set MCLK = 14.31818 * (0x16 / 0x2) */ | |
847 | smtc_seqw(0x6a, 0x16); | |
848 | smtc_seqw(0x6b, 0x02); | |
849 | smtc_seqw(0x62, 0x3e); | |
850 | /* enable PCI burst */ | |
851 | smtc_seqw(0x17, 0x20); | |
852 | /* enable word swap */ | |
853 | #ifdef __BIG_ENDIAN | |
854 | if (sfb->fb.var.bits_per_pixel == 32) | |
855 | smtc_seqw(0x17, 0x30); | |
856 | #endif | |
857 | break; | |
858 | case 0x720: | |
859 | sfb->fb.fix.mmio_start = mmio_base; | |
860 | sfb->fb.fix.mmio_len = 0x00200000; | |
861 | smem_size = SM722_VIDEOMEMORYSIZE; | |
862 | sfb->dp_regs = ioremap(mmio_base, 0x00a00000); | |
863 | sfb->lfb = sfb->dp_regs + 0x00200000; | |
864 | sfb->mmio = (smtc_RegBaseAddress = | |
865 | sfb->dp_regs + 0x000c0000); | |
866 | sfb->vp_regs = sfb->dp_regs + 0x800; | |
867 | ||
868 | smtc_seqw(0x62, 0xff); | |
869 | smtc_seqw(0x6a, 0x0d); | |
870 | smtc_seqw(0x6b, 0x02); | |
871 | break; | |
872 | default: | |
873 | dev_err(&pdev->dev, | |
874 | "No valid Silicon Motion display chip was detected!"); | |
875 | ||
876 | goto failed_fb; | |
877 | } | |
878 | ||
879 | /* can support 32 bpp */ | |
880 | if (15 == sfb->fb.var.bits_per_pixel) | |
881 | sfb->fb.var.bits_per_pixel = 16; | |
882 | ||
883 | sfb->fb.var.xres_virtual = sfb->fb.var.xres; | |
884 | sfb->fb.var.yres_virtual = sfb->fb.var.yres; | |
885 | err = smtc_map_smem(sfb, pdev, smem_size); | |
886 | if (err) | |
887 | goto failed; | |
888 | ||
889 | smtcfb_setmode(sfb); | |
890 | ||
891 | err = register_framebuffer(&sfb->fb); | |
892 | if (err < 0) | |
893 | goto failed; | |
894 | ||
895 | dev_info(&pdev->dev, | |
896 | "Silicon Motion SM%X Rev%X primary display mode %dx%d-%d Init Complete.", | |
897 | sfb->chip_id, sfb->chip_rev_id, sfb->fb.var.xres, | |
898 | sfb->fb.var.yres, sfb->fb.var.bits_per_pixel); | |
899 | ||
900 | return 0; | |
901 | ||
902 | failed: | |
903 | dev_err(&pdev->dev, "Silicon Motion, Inc. primary display init fail."); | |
904 | ||
905 | smtc_unmap_smem(sfb); | |
906 | smtc_unmap_mmio(sfb); | |
907 | failed_fb: | |
908 | smtc_free_fb_info(sfb); | |
909 | ||
910 | failed_free: | |
911 | pci_disable_device(pdev); | |
912 | ||
913 | return err; | |
914 | } | |
915 | ||
916 | /* | |
917 | * 0x710 (LynxEM) | |
918 | * 0x712 (LynxEM+) | |
919 | * 0x720 (Lynx3DM, Lynx3DM+) | |
920 | */ | |
921 | static const struct pci_device_id smtcfb_pci_table[] = { | |
922 | { PCI_DEVICE(0x126f, 0x710), }, | |
923 | { PCI_DEVICE(0x126f, 0x712), }, | |
924 | { PCI_DEVICE(0x126f, 0x720), }, | |
925 | {0,} | |
926 | }; | |
927 | ||
928 | static void smtcfb_pci_remove(struct pci_dev *pdev) | |
929 | { | |
930 | struct smtcfb_info *sfb; | |
931 | ||
932 | sfb = pci_get_drvdata(pdev); | |
933 | smtc_unmap_smem(sfb); | |
934 | smtc_unmap_mmio(sfb); | |
935 | unregister_framebuffer(&sfb->fb); | |
936 | smtc_free_fb_info(sfb); | |
937 | } | |
938 | ||
939 | #ifdef CONFIG_PM | |
940 | static int smtcfb_pci_suspend(struct device *device) | |
941 | { | |
942 | struct pci_dev *pdev = to_pci_dev(device); | |
943 | struct smtcfb_info *sfb; | |
944 | ||
945 | sfb = pci_get_drvdata(pdev); | |
946 | ||
947 | /* set the hw in sleep mode use external clock and self memory refresh | |
948 | * so that we can turn off internal PLLs later on | |
949 | */ | |
950 | smtc_seqw(0x20, (smtc_seqr(0x20) | 0xc0)); | |
951 | smtc_seqw(0x69, (smtc_seqr(0x69) & 0xf7)); | |
952 | ||
953 | console_lock(); | |
954 | fb_set_suspend(&sfb->fb, 1); | |
955 | console_unlock(); | |
956 | ||
957 | /* additionally turn off all function blocks including internal PLLs */ | |
958 | smtc_seqw(0x21, 0xff); | |
959 | ||
960 | return 0; | |
961 | } | |
962 | ||
963 | static int smtcfb_pci_resume(struct device *device) | |
964 | { | |
965 | struct pci_dev *pdev = to_pci_dev(device); | |
966 | struct smtcfb_info *sfb; | |
967 | ||
968 | sfb = pci_get_drvdata(pdev); | |
969 | ||
970 | /* reinit hardware */ | |
971 | sm7xx_init_hw(); | |
972 | switch (sfb->chip_id) { | |
973 | case 0x710: | |
974 | case 0x712: | |
975 | /* set MCLK = 14.31818 * (0x16 / 0x2) */ | |
976 | smtc_seqw(0x6a, 0x16); | |
977 | smtc_seqw(0x6b, 0x02); | |
978 | smtc_seqw(0x62, 0x3e); | |
979 | /* enable PCI burst */ | |
980 | smtc_seqw(0x17, 0x20); | |
981 | #ifdef __BIG_ENDIAN | |
982 | if (sfb->fb.var.bits_per_pixel == 32) | |
983 | smtc_seqw(0x17, 0x30); | |
984 | #endif | |
985 | break; | |
986 | case 0x720: | |
987 | smtc_seqw(0x62, 0xff); | |
988 | smtc_seqw(0x6a, 0x0d); | |
989 | smtc_seqw(0x6b, 0x02); | |
990 | break; | |
991 | } | |
992 | ||
993 | smtc_seqw(0x34, (smtc_seqr(0x34) | 0xc0)); | |
994 | smtc_seqw(0x33, ((smtc_seqr(0x33) | 0x08) & 0xfb)); | |
995 | ||
996 | smtcfb_setmode(sfb); | |
997 | ||
998 | console_lock(); | |
999 | fb_set_suspend(&sfb->fb, 0); | |
1000 | console_unlock(); | |
1001 | ||
1002 | return 0; | |
1003 | } | |
1004 | ||
1005 | static SIMPLE_DEV_PM_OPS(sm7xx_pm_ops, smtcfb_pci_suspend, smtcfb_pci_resume); | |
1006 | #define SM7XX_PM_OPS (&sm7xx_pm_ops) | |
1007 | ||
1008 | #else /* !CONFIG_PM */ | |
1009 | ||
1010 | #define SM7XX_PM_OPS NULL | |
1011 | ||
1012 | #endif /* !CONFIG_PM */ | |
1013 | ||
1014 | static struct pci_driver smtcfb_driver = { | |
1015 | .name = "smtcfb", | |
1016 | .id_table = smtcfb_pci_table, | |
1017 | .probe = smtcfb_pci_probe, | |
1018 | .remove = smtcfb_pci_remove, | |
1019 | .driver.pm = SM7XX_PM_OPS, | |
1020 | }; | |
1021 | ||
1022 | module_pci_driver(smtcfb_driver); | |
1023 | ||
1024 | MODULE_AUTHOR("Siliconmotion "); | |
1025 | MODULE_DESCRIPTION("Framebuffer driver for SMI Graphic Cards"); | |
1026 | MODULE_LICENSE("GPL"); |