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Merge branch 'staging-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh...
[linux-2.6/cjktty.git] / drivers / staging / sm7xx / smtcfb.c
blob3e2230f0879a327ebc1b1064fcc7c34f2bf813ae
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 * This file is subject to the terms and conditions of the GNU General Public
12 * License. See the file COPYING in the main directory of this archive for
13 * more details.
14 *
15 * Version 0.10.26192.21.01
16 * - Add PowerPC/Big endian support
17 * - Add 2D support for Lynx
18 * - Verified on2.6.19.2 Boyod.yang <boyod.yang@siliconmotion.com.cn>
19 *
20 * Version 0.09.2621.00.01
21 * - Only support Linux Kernel's version 2.6.21.
22 * Boyod.yang <boyod.yang@siliconmotion.com.cn>
23 *
24 * Version 0.09
25 * - Only support Linux Kernel's version 2.6.12.
26 * Boyod.yang <boyod.yang@siliconmotion.com.cn>
27 */
28
29 #include <linux/io.h>
30 #include <linux/fb.h>
31 #include <linux/pci.h>
32 #include <linux/init.h>
33 #include <linux/slab.h>
34 #include <linux/uaccess.h>
35 #include <linux/console.h>
36 #include <linux/screen_info.h>
37
38 #ifdef CONFIG_PM
39 #include <linux/pm.h>
40 #endif
41
42 struct screen_info smtc_screen_info;
43
44 #include "smtcfb.h"
45
46 #ifdef DEBUG
47 #define smdbg(format, arg...) printk(KERN_DEBUG format , ## arg)
48 #else
49 #define smdbg(format, arg...)
50 #endif
51
52 /*
53 * Private structure
54 */
55 struct smtcfb_info {
56 /*
57 * The following is a pointer to be passed into the
58 * functions below. The modules outside the main
59 * voyager.c driver have no knowledge as to what
60 * is within this structure.
61 */
62 struct fb_info fb;
63 struct display_switch *dispsw;
64 struct pci_dev *dev;
65 signed int currcon;
66
67 struct {
68 u8 red, green, blue;
69 } palette[NR_RGB];
70
71 u_int palette_size;
72 };
73
74 struct par_info {
75 /*
76 * Hardware
77 */
78 u16 chipID;
79 unsigned char __iomem *m_pMMIO;
80 char __iomem *m_pLFB;
81 char *m_pDPR;
82 char *m_pVPR;
83 char *m_pCPR;
84
85 u_int width;
86 u_int height;
87 u_int hz;
88 u_long BaseAddressInVRAM;
89 u8 chipRevID;
90 };
91
92 struct vesa_mode_table {
93 char mode_index[6];
94 u16 lfb_width;
95 u16 lfb_height;
96 u16 lfb_depth;
97 };
98
99 static struct vesa_mode_table vesa_mode[] = {
100 {"0x301", 640, 480, 8},
101 {"0x303", 800, 600, 8},
102 {"0x305", 1024, 768, 8},
103 {"0x307", 1280, 1024, 8},
104
105 {"0x311", 640, 480, 16},
106 {"0x314", 800, 600, 16},
107 {"0x317", 1024, 768, 16},
108 {"0x31A", 1280, 1024, 16},
109
110 {"0x312", 640, 480, 24},
111 {"0x315", 800, 600, 24},
112 {"0x318", 1024, 768, 24},
113 {"0x31B", 1280, 1024, 24},
114 };
115
116 char __iomem *smtc_RegBaseAddress; /* Memory Map IO starting address */
117 char __iomem *smtc_VRAMBaseAddress; /* video memory starting address */
118
119 static u32 colreg[17];
120 static struct par_info hw; /* hardware information */
121
122 u16 smtc_ChipIDs[] = {
123 0x710,
124 0x712,
125 0x720
126 };
127
128 #define numSMTCchipIDs (sizeof(smtc_ChipIDs) / sizeof(u16))
129
130 static void sm712_set_timing(struct smtcfb_info *sfb,
131 struct par_info *ppar_info)
132 {
133 int i = 0, j = 0;
134 u32 m_nScreenStride;
135
136 smdbg("\nppar_info->width = %d ppar_info->height = %d"
137 "sfb->fb.var.bits_per_pixel = %d ppar_info->hz = %d\n",
138 ppar_info->width, ppar_info->height,
139 sfb->fb.var.bits_per_pixel, ppar_info->hz);
140
141 for (j = 0; j < numVGAModes; j++) {
142 if (VGAMode[j].mmSizeX == ppar_info->width &&
143 VGAMode[j].mmSizeY == ppar_info->height &&
144 VGAMode[j].bpp == sfb->fb.var.bits_per_pixel &&
145 VGAMode[j].hz == ppar_info->hz) {
146
147 smdbg("\nVGAMode[j].mmSizeX = %d VGAMode[j].mmSizeY ="
148 "%d VGAMode[j].bpp = %d"
149 "VGAMode[j].hz=%d\n",
150 VGAMode[j].mmSizeX, VGAMode[j].mmSizeY,
151 VGAMode[j].bpp, VGAMode[j].hz);
152
153 smdbg("VGAMode index=%d\n", j);
154
155 smtc_mmiowb(0x0, 0x3c6);
156
157 smtc_seqw(0, 0x1);
158
159 smtc_mmiowb(VGAMode[j].Init_MISC, 0x3c2);
160
161 /* init SEQ register SR00 - SR04 */
162 for (i = 0; i < SIZE_SR00_SR04; i++)
163 smtc_seqw(i, VGAMode[j].Init_SR00_SR04[i]);
164
165 /* init SEQ register SR10 - SR24 */
166 for (i = 0; i < SIZE_SR10_SR24; i++)
167 smtc_seqw(i + 0x10,
168 VGAMode[j].Init_SR10_SR24[i]);
169
170 /* init SEQ register SR30 - SR75 */
171 for (i = 0; i < SIZE_SR30_SR75; i++)
172 if (((i + 0x30) != 0x62) \
173 && ((i + 0x30) != 0x6a) \
174 && ((i + 0x30) != 0x6b))
175 smtc_seqw(i + 0x30,
176 VGAMode[j].Init_SR30_SR75[i]);
177
178 /* init SEQ register SR80 - SR93 */
179 for (i = 0; i < SIZE_SR80_SR93; i++)
180 smtc_seqw(i + 0x80,
181 VGAMode[j].Init_SR80_SR93[i]);
182
183 /* init SEQ register SRA0 - SRAF */
184 for (i = 0; i < SIZE_SRA0_SRAF; i++)
185 smtc_seqw(i + 0xa0,
186 VGAMode[j].Init_SRA0_SRAF[i]);
187
188 /* init Graphic register GR00 - GR08 */
189 for (i = 0; i < SIZE_GR00_GR08; i++)
190 smtc_grphw(i, VGAMode[j].Init_GR00_GR08[i]);
191
192 /* init Attribute register AR00 - AR14 */
193 for (i = 0; i < SIZE_AR00_AR14; i++)
194 smtc_attrw(i, VGAMode[j].Init_AR00_AR14[i]);
195
196 /* init CRTC register CR00 - CR18 */
197 for (i = 0; i < SIZE_CR00_CR18; i++)
198 smtc_crtcw(i, VGAMode[j].Init_CR00_CR18[i]);
199
200 /* init CRTC register CR30 - CR4D */
201 for (i = 0; i < SIZE_CR30_CR4D; i++)
202 smtc_crtcw(i + 0x30,
203 VGAMode[j].Init_CR30_CR4D[i]);
204
205 /* init CRTC register CR90 - CRA7 */
206 for (i = 0; i < SIZE_CR90_CRA7; i++)
207 smtc_crtcw(i + 0x90,
208 VGAMode[j].Init_CR90_CRA7[i]);
209 }
210 }
211 smtc_mmiowb(0x67, 0x3c2);
212
213 /* set VPR registers */
214 writel(0x0, ppar_info->m_pVPR + 0x0C);
215 writel(0x0, ppar_info->m_pVPR + 0x40);
216
217 /* set data width */
218 m_nScreenStride =
219 (ppar_info->width * sfb->fb.var.bits_per_pixel) / 64;
220 switch (sfb->fb.var.bits_per_pixel) {
221 case 8:
222 writel(0x0, ppar_info->m_pVPR + 0x0);
223 break;
224 case 16:
225 writel(0x00020000, ppar_info->m_pVPR + 0x0);
226 break;
227 case 24:
228 writel(0x00040000, ppar_info->m_pVPR + 0x0);
229 break;
230 case 32:
231 writel(0x00030000, ppar_info->m_pVPR + 0x0);
232 break;
233 }
234 writel((u32) (((m_nScreenStride + 2) << 16) | m_nScreenStride),
235 ppar_info->m_pVPR + 0x10);
236
237 }
238
239 static void sm712_setpalette(int regno, unsigned red, unsigned green,
240 unsigned blue, struct fb_info *info)
241 {
242 struct par_info *cur_par = (struct par_info *)info->par;
243
244 if (cur_par->BaseAddressInVRAM)
245 /*
246 * second display palette for dual head. Enable CRT RAM, 6-bit
247 * RAM
248 */
249 smtc_seqw(0x66, (smtc_seqr(0x66) & 0xC3) | 0x20);
250 else
251 /* primary display palette. Enable LCD RAM only, 6-bit RAM */
252 smtc_seqw(0x66, (smtc_seqr(0x66) & 0xC3) | 0x10);
253 smtc_mmiowb(regno, dac_reg);
254 smtc_mmiowb(red >> 10, dac_val);
255 smtc_mmiowb(green >> 10, dac_val);
256 smtc_mmiowb(blue >> 10, dac_val);
257 }
258
259 static void smtc_set_timing(struct smtcfb_info *sfb, struct par_info
260 *ppar_info)
261 {
262 switch (ppar_info->chipID) {
263 case 0x710:
264 case 0x712:
265 case 0x720:
266 sm712_set_timing(sfb, ppar_info);
267 break;
268 }
269 }
270
271 static struct fb_var_screeninfo smtcfb_var = {
272 .xres = 1024,
273 .yres = 600,
274 .xres_virtual = 1024,
275 .yres_virtual = 600,
276 .bits_per_pixel = 16,
277 .red = {16, 8, 0},
278 .green = {8, 8, 0},
279 .blue = {0, 8, 0},
280 .activate = FB_ACTIVATE_NOW,
281 .height = -1,
282 .width = -1,
283 .vmode = FB_VMODE_NONINTERLACED,
284 };
285
286 static struct fb_fix_screeninfo smtcfb_fix = {
287 .id = "sm712fb",
288 .type = FB_TYPE_PACKED_PIXELS,
289 .visual = FB_VISUAL_TRUECOLOR,
290 .line_length = 800 * 3,
291 .accel = FB_ACCEL_SMI_LYNX,
292 };
293
294 /* chan_to_field
295 *
296 * convert a colour value into a field position
297 *
298 * from pxafb.c
299 */
300
301 static inline unsigned int chan_to_field(unsigned int chan,
302 struct fb_bitfield *bf)
303 {
304 chan &= 0xffff;
305 chan >>= 16 - bf->length;
306 return chan << bf->offset;
307 }
308
309 static int cfb_blank(int blank_mode, struct fb_info *info)
310 {
311 /* clear DPMS setting */
312 switch (blank_mode) {
313 case FB_BLANK_UNBLANK:
314 /* Screen On: HSync: On, VSync : On */
315 smtc_seqw(0x01, (smtc_seqr(0x01) & (~0x20)));
316 smtc_seqw(0x6a, 0x16);
317 smtc_seqw(0x6b, 0x02);
318 smtc_seqw(0x21, (smtc_seqr(0x21) & 0x77));
319 smtc_seqw(0x22, (smtc_seqr(0x22) & (~0x30)));
320 smtc_seqw(0x23, (smtc_seqr(0x23) & (~0xc0)));
321 smtc_seqw(0x24, (smtc_seqr(0x24) | 0x01));
322 smtc_seqw(0x31, (smtc_seqr(0x31) | 0x03));
323 break;
324 case FB_BLANK_NORMAL:
325 /* Screen Off: HSync: On, VSync : On Soft blank */
326 smtc_seqw(0x01, (smtc_seqr(0x01) & (~0x20)));
327 smtc_seqw(0x6a, 0x16);
328 smtc_seqw(0x6b, 0x02);
329 smtc_seqw(0x22, (smtc_seqr(0x22) & (~0x30)));
330 smtc_seqw(0x23, (smtc_seqr(0x23) & (~0xc0)));
331 smtc_seqw(0x24, (smtc_seqr(0x24) | 0x01));
332 smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00));
333 break;
334 case FB_BLANK_VSYNC_SUSPEND:
335 /* Screen On: HSync: On, VSync : Off */
336 smtc_seqw(0x01, (smtc_seqr(0x01) | 0x20));
337 smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0)));
338 smtc_seqw(0x6a, 0x0c);
339 smtc_seqw(0x6b, 0x02);
340 smtc_seqw(0x21, (smtc_seqr(0x21) | 0x88));
341 smtc_seqw(0x22, ((smtc_seqr(0x22) & (~0x30)) | 0x20));
342 smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0x20));
343 smtc_seqw(0x24, (smtc_seqr(0x24) & (~0x01)));
344 smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00));
345 smtc_seqw(0x34, (smtc_seqr(0x34) | 0x80));
346 break;
347 case FB_BLANK_HSYNC_SUSPEND:
348 /* Screen On: HSync: Off, VSync : On */
349 smtc_seqw(0x01, (smtc_seqr(0x01) | 0x20));
350 smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0)));
351 smtc_seqw(0x6a, 0x0c);
352 smtc_seqw(0x6b, 0x02);
353 smtc_seqw(0x21, (smtc_seqr(0x21) | 0x88));
354 smtc_seqw(0x22, ((smtc_seqr(0x22) & (~0x30)) | 0x10));
355 smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0xD8));
356 smtc_seqw(0x24, (smtc_seqr(0x24) & (~0x01)));
357 smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00));
358 smtc_seqw(0x34, (smtc_seqr(0x34) | 0x80));
359 break;
360 case FB_BLANK_POWERDOWN:
361 /* Screen On: HSync: Off, VSync : Off */
362 smtc_seqw(0x01, (smtc_seqr(0x01) | 0x20));
363 smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0)));
364 smtc_seqw(0x6a, 0x0c);
365 smtc_seqw(0x6b, 0x02);
366 smtc_seqw(0x21, (smtc_seqr(0x21) | 0x88));
367 smtc_seqw(0x22, ((smtc_seqr(0x22) & (~0x30)) | 0x30));
368 smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0xD8));
369 smtc_seqw(0x24, (smtc_seqr(0x24) & (~0x01)));
370 smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00));
371 smtc_seqw(0x34, (smtc_seqr(0x34) | 0x80));
372 break;
373 default:
374 return -EINVAL;
375 }
376
377 return 0;
378 }
379
380 static int smtc_setcolreg(unsigned regno, unsigned red, unsigned green,
381 unsigned blue, unsigned trans, struct fb_info *info)
382 {
383 struct smtcfb_info *sfb = (struct smtcfb_info *)info;
384 u32 val;
385
386 if (regno > 255)
387 return 1;
388
389 switch (sfb->fb.fix.visual) {
390 case FB_VISUAL_DIRECTCOLOR:
391 case FB_VISUAL_TRUECOLOR:
392 /*
393 * 16/32 bit true-colour, use pseuo-palette for 16 base color
394 */
395 if (regno < 16) {
396 if (sfb->fb.var.bits_per_pixel == 16) {
397 u32 *pal = sfb->fb.pseudo_palette;
398 val = chan_to_field(red, &sfb->fb.var.red);
399 val |= chan_to_field(green, \
400 &sfb->fb.var.green);
401 val |= chan_to_field(blue, &sfb->fb.var.blue);
402 #ifdef __BIG_ENDIAN
403 pal[regno] =
404 ((red & 0xf800) >> 8) |
405 ((green & 0xe000) >> 13) |
406 ((green & 0x1c00) << 3) |
407 ((blue & 0xf800) >> 3);
408 #else
409 pal[regno] = val;
410 #endif
411 } else {
412 u32 *pal = sfb->fb.pseudo_palette;
413 val = chan_to_field(red, &sfb->fb.var.red);
414 val |= chan_to_field(green, \
415 &sfb->fb.var.green);
416 val |= chan_to_field(blue, &sfb->fb.var.blue);
417 #ifdef __BIG_ENDIAN
418 val =
419 (val & 0xff00ff00 >> 8) |
420 (val & 0x00ff00ff << 8);
421 #endif
422 pal[regno] = val;
423 }
424 }
425 break;
426
427 case FB_VISUAL_PSEUDOCOLOR:
428 /* color depth 8 bit */
429 sm712_setpalette(regno, red, green, blue, info);
430 break;
431
432 default:
433 return 1; /* unknown type */
434 }
435
436 return 0;
437
438 }
439
440 #ifdef __BIG_ENDIAN
441 static ssize_t smtcfb_read(struct fb_info *info, char __user * buf, size_t
442 count, loff_t *ppos)
443 {
444 unsigned long p = *ppos;
445
446 u32 *buffer, *dst;
447 u32 __iomem *src;
448 int c, i, cnt = 0, err = 0;
449 unsigned long total_size;
450
451 if (!info || !info->screen_base)
452 return -ENODEV;
453
454 if (info->state != FBINFO_STATE_RUNNING)
455 return -EPERM;
456
457 total_size = info->screen_size;
458
459 if (total_size == 0)
460 total_size = info->fix.smem_len;
461
462 if (p >= total_size)
463 return 0;
464
465 if (count >= total_size)
466 count = total_size;
467
468 if (count + p > total_size)
469 count = total_size - p;
470
471 buffer = kmalloc((count > PAGE_SIZE) ? PAGE_SIZE : count, GFP_KERNEL);
472 if (!buffer)
473 return -ENOMEM;
474
475 src = (u32 __iomem *) (info->screen_base + p);
476
477 if (info->fbops->fb_sync)
478 info->fbops->fb_sync(info);
479
480 while (count) {
481 c = (count > PAGE_SIZE) ? PAGE_SIZE : count;
482 dst = buffer;
483 for (i = c >> 2; i--;) {
484 *dst = fb_readl(src++);
485 *dst =
486 (*dst & 0xff00ff00 >> 8) |
487 (*dst & 0x00ff00ff << 8);
488 dst++;
489 }
490 if (c & 3) {
491 u8 *dst8 = (u8 *) dst;
492 u8 __iomem *src8 = (u8 __iomem *) src;
493
494 for (i = c & 3; i--;) {
495 if (i & 1) {
496 *dst8++ = fb_readb(++src8);
497 } else {
498 *dst8++ = fb_readb(--src8);
499 src8 += 2;
500 }
501 }
502 src = (u32 __iomem *) src8;
503 }
504
505 if (copy_to_user(buf, buffer, c)) {
506 err = -EFAULT;
507 break;
508 }
509 *ppos += c;
510 buf += c;
511 cnt += c;
512 count -= c;
513 }
514
515 kfree(buffer);
516
517 return (err) ? err : cnt;
518 }
519
520 static ssize_t
521 smtcfb_write(struct fb_info *info, const char __user *buf, size_t count,
522 loff_t *ppos)
523 {
524 unsigned long p = *ppos;
525
526 u32 *buffer, *src;
527 u32 __iomem *dst;
528 int c, i, cnt = 0, err = 0;
529 unsigned long total_size;
530
531 if (!info || !info->screen_base)
532 return -ENODEV;
533
534 if (info->state != FBINFO_STATE_RUNNING)
535 return -EPERM;
536
537 total_size = info->screen_size;
538
539 if (total_size == 0)
540 total_size = info->fix.smem_len;
541
542 if (p > total_size)
543 return -EFBIG;
544
545 if (count > total_size) {
546 err = -EFBIG;
547 count = total_size;
548 }
549
550 if (count + p > total_size) {
551 if (!err)
552 err = -ENOSPC;
553
554 count = total_size - p;
555 }
556
557 buffer = kmalloc((count > PAGE_SIZE) ? PAGE_SIZE : count, GFP_KERNEL);
558 if (!buffer)
559 return -ENOMEM;
560
561 dst = (u32 __iomem *) (info->screen_base + p);
562
563 if (info->fbops->fb_sync)
564 info->fbops->fb_sync(info);
565
566 while (count) {
567 c = (count > PAGE_SIZE) ? PAGE_SIZE : count;
568 src = buffer;
569
570 if (copy_from_user(src, buf, c)) {
571 err = -EFAULT;
572 break;
573 }
574
575 for (i = c >> 2; i--;) {
576 fb_writel((*src & 0xff00ff00 >> 8) |
577 (*src & 0x00ff00ff << 8), dst++);
578 src++;
579 }
580 if (c & 3) {
581 u8 *src8 = (u8 *) src;
582 u8 __iomem *dst8 = (u8 __iomem *) dst;
583
584 for (i = c & 3; i--;) {
585 if (i & 1) {
586 fb_writeb(*src8++, ++dst8);
587 } else {
588 fb_writeb(*src8++, --dst8);
589 dst8 += 2;
590 }
591 }
592 dst = (u32 __iomem *) dst8;
593 }
594
595 *ppos += c;
596 buf += c;
597 cnt += c;
598 count -= c;
599 }
600
601 kfree(buffer);
602
603 return (cnt) ? cnt : err;
604 }
605 #endif /* ! __BIG_ENDIAN */
606
607 static struct fb_ops smtcfb_ops = {
608 .owner = THIS_MODULE,
609 .fb_setcolreg = smtc_setcolreg,
610 .fb_blank = cfb_blank,
611 .fb_fillrect = cfb_fillrect,
612 .fb_imageblit = cfb_imageblit,
613 .fb_copyarea = cfb_copyarea,
614 #ifdef __BIG_ENDIAN
615 .fb_read = smtcfb_read,
616 .fb_write = smtcfb_write,
617 #endif
618
619 };
620
621 void smtcfb_setmode(struct smtcfb_info *sfb)
622 {
623 switch (sfb->fb.var.bits_per_pixel) {
624 case 32:
625 sfb->fb.fix.visual = FB_VISUAL_TRUECOLOR;
626 sfb->fb.fix.line_length = sfb->fb.var.xres * 4;
627 sfb->fb.var.red.length = 8;
628 sfb->fb.var.green.length = 8;
629 sfb->fb.var.blue.length = 8;
630 sfb->fb.var.red.offset = 16;
631 sfb->fb.var.green.offset = 8;
632 sfb->fb.var.blue.offset = 0;
633
634 break;
635 case 8:
636 sfb->fb.fix.visual = FB_VISUAL_PSEUDOCOLOR;
637 sfb->fb.fix.line_length = sfb->fb.var.xres;
638 sfb->fb.var.red.offset = 5;
639 sfb->fb.var.red.length = 3;
640 sfb->fb.var.green.offset = 2;
641 sfb->fb.var.green.length = 3;
642 sfb->fb.var.blue.offset = 0;
643 sfb->fb.var.blue.length = 2;
644 break;
645 case 24:
646 sfb->fb.fix.visual = FB_VISUAL_TRUECOLOR;
647 sfb->fb.fix.line_length = sfb->fb.var.xres * 3;
648 sfb->fb.var.red.length = 8;
649 sfb->fb.var.green.length = 8;
650 sfb->fb.var.blue.length = 8;
651
652 sfb->fb.var.red.offset = 16;
653 sfb->fb.var.green.offset = 8;
654 sfb->fb.var.blue.offset = 0;
655
656 break;
657 case 16:
658 default:
659 sfb->fb.fix.visual = FB_VISUAL_TRUECOLOR;
660 sfb->fb.fix.line_length = sfb->fb.var.xres * 2;
661
662 sfb->fb.var.red.length = 5;
663 sfb->fb.var.green.length = 6;
664 sfb->fb.var.blue.length = 5;
665
666 sfb->fb.var.red.offset = 11;
667 sfb->fb.var.green.offset = 5;
668 sfb->fb.var.blue.offset = 0;
669
670 break;
671 }
672
673 hw.width = sfb->fb.var.xres;
674 hw.height = sfb->fb.var.yres;
675 hw.hz = 60;
676 smtc_set_timing(sfb, &hw);
677 }
678
679 /*
680 * Alloc struct smtcfb_info and assign the default value
681 */
682 static struct smtcfb_info *smtc_alloc_fb_info(struct pci_dev *dev,
683 char *name)
684 {
685 struct smtcfb_info *sfb;
686
687 sfb = kzalloc(sizeof(struct smtcfb_info), GFP_KERNEL);
688
689 if (!sfb)
690 return NULL;
691
692 sfb->currcon = -1;
693 sfb->dev = dev;
694
695 /*** Init sfb->fb with default value ***/
696 sfb->fb.flags = FBINFO_FLAG_DEFAULT;
697 sfb->fb.fbops = &smtcfb_ops;
698 sfb->fb.var = smtcfb_var;
699 sfb->fb.fix = smtcfb_fix;
700
701 strcpy(sfb->fb.fix.id, name);
702
703 sfb->fb.fix.type = FB_TYPE_PACKED_PIXELS;
704 sfb->fb.fix.type_aux = 0;
705 sfb->fb.fix.xpanstep = 0;
706 sfb->fb.fix.ypanstep = 0;
707 sfb->fb.fix.ywrapstep = 0;
708 sfb->fb.fix.accel = FB_ACCEL_SMI_LYNX;
709
710 sfb->fb.var.nonstd = 0;
711 sfb->fb.var.activate = FB_ACTIVATE_NOW;
712 sfb->fb.var.height = -1;
713 sfb->fb.var.width = -1;
714 /* text mode acceleration */
715 sfb->fb.var.accel_flags = FB_ACCELF_TEXT;
716 sfb->fb.var.vmode = FB_VMODE_NONINTERLACED;
717 sfb->fb.par = &hw;
718 sfb->fb.pseudo_palette = colreg;
719
720 return sfb;
721 }
722
723 /*
724 * Unmap in the memory mapped IO registers
725 */
726
727 static void smtc_unmap_mmio(struct smtcfb_info *sfb)
728 {
729 if (sfb && smtc_RegBaseAddress)
730 smtc_RegBaseAddress = NULL;
731 }
732
733 /*
734 * Map in the screen memory
735 */
736
737 static int smtc_map_smem(struct smtcfb_info *sfb,
738 struct pci_dev *dev, u_long smem_len)
739 {
740 if (sfb->fb.var.bits_per_pixel == 32) {
741 #ifdef __BIG_ENDIAN
742 sfb->fb.fix.smem_start = pci_resource_start(dev, 0)
743 + 0x800000;
744 #else
745 sfb->fb.fix.smem_start = pci_resource_start(dev, 0);
746 #endif
747 } else {
748 sfb->fb.fix.smem_start = pci_resource_start(dev, 0);
749 }
750
751 sfb->fb.fix.smem_len = smem_len;
752
753 sfb->fb.screen_base = smtc_VRAMBaseAddress;
754
755 if (!sfb->fb.screen_base) {
756 printk(KERN_INFO "%s: unable to map screen memory\n",
757 sfb->fb.fix.id);
758 return -ENOMEM;
759 }
760
761 return 0;
762 }
763
764 /*
765 * Unmap in the screen memory
766 *
767 */
768 static void smtc_unmap_smem(struct smtcfb_info *sfb)
769 {
770 if (sfb && sfb->fb.screen_base) {
771 iounmap(sfb->fb.screen_base);
772 sfb->fb.screen_base = NULL;
773 }
774 }
775
776 /*
777 * We need to wake up the LynxEM+, and make sure its in linear memory mode.
778 */
779 static inline void sm7xx_init_hw(void)
780 {
781 outb_p(0x18, 0x3c4);
782 outb_p(0x11, 0x3c5);
783 }
784
785 static void smtc_free_fb_info(struct smtcfb_info *sfb)
786 {
787 if (sfb) {
788 fb_alloc_cmap(&sfb->fb.cmap, 0, 0);
789 kfree(sfb);
790 }
791 }
792
793 /*
794 * sm712vga_setup - process command line options, get vga parameter
795 * @options: string of options
796 * Returns zero.
797 *
798 */
799 static int __init __maybe_unused sm712vga_setup(char *options)
800 {
801 int index;
802
803 if (!options || !*options) {
804 smdbg("\n No vga parameter\n");
805 return -EINVAL;
806 }
807
808 smtc_screen_info.lfb_width = 0;
809 smtc_screen_info.lfb_height = 0;
810 smtc_screen_info.lfb_depth = 0;
811
812 smdbg("\nsm712vga_setup = %s\n", options);
813
814 for (index = 0;
815 index < (sizeof(vesa_mode) / sizeof(struct vesa_mode_table));
816 index++) {
817 if (strstr(options, vesa_mode[index].mode_index)) {
818 smtc_screen_info.lfb_width = vesa_mode[index].lfb_width;
819 smtc_screen_info.lfb_height =
820 vesa_mode[index].lfb_height;
821 smtc_screen_info.lfb_depth = vesa_mode[index].lfb_depth;
822 return 0;
823 }
824 }
825
826 return -1;
827 }
828 __setup("vga=", sm712vga_setup);
829
830 /* Jason (08/13/2009)
831 * Original init function changed to probe method to be used by pci_drv
832 * process used to detect chips replaced with kernel process in pci_drv
833 */
834 static int __devinit smtcfb_pci_probe(struct pci_dev *pdev,
835 const struct pci_device_id *ent)
836 {
837 struct smtcfb_info *sfb;
838 u_long smem_size = 0x00800000; /* default 8MB */
839 char name[16];
840 int err;
841 unsigned long pFramebufferPhysical;
842
843 printk(KERN_INFO
844 "Silicon Motion display driver " SMTC_LINUX_FB_VERSION "\n");
845
846 err = pci_enable_device(pdev); /* enable SMTC chip */
847 if (err)
848 return err;
849 err = -ENOMEM;
850
851 hw.chipID = ent->device;
852 sprintf(name, "sm%Xfb", hw.chipID);
853
854 sfb = smtc_alloc_fb_info(pdev, name);
855
856 if (!sfb)
857 goto failed_free;
858 /* Jason (08/13/2009)
859 * Store fb_info to be further used when suspending and resuming
860 */
861 pci_set_drvdata(pdev, sfb);
862
863 sm7xx_init_hw();
864
865 /*get mode parameter from smtc_screen_info */
866 if (smtc_screen_info.lfb_width != 0) {
867 sfb->fb.var.xres = smtc_screen_info.lfb_width;
868 sfb->fb.var.yres = smtc_screen_info.lfb_height;
869 sfb->fb.var.bits_per_pixel = smtc_screen_info.lfb_depth;
870 } else {
871 /* default resolution 1024x600 16bit mode */
872 sfb->fb.var.xres = SCREEN_X_RES;
873 sfb->fb.var.yres = SCREEN_Y_RES;
874 sfb->fb.var.bits_per_pixel = SCREEN_BPP;
875 }
876
877 #ifdef __BIG_ENDIAN
878 if (sfb->fb.var.bits_per_pixel == 24)
879 sfb->fb.var.bits_per_pixel = (smtc_screen_info.lfb_depth = 32);
880 #endif
881 /* Map address and memory detection */
882 pFramebufferPhysical = pci_resource_start(pdev, 0);
883 pci_read_config_byte(pdev, PCI_REVISION_ID, &hw.chipRevID);
884
885 switch (hw.chipID) {
886 case 0x710:
887 case 0x712:
888 sfb->fb.fix.mmio_start = pFramebufferPhysical + 0x00400000;
889 sfb->fb.fix.mmio_len = 0x00400000;
890 smem_size = SM712_VIDEOMEMORYSIZE;
891 #ifdef __BIG_ENDIAN
892 hw.m_pLFB = (smtc_VRAMBaseAddress =
893 ioremap(pFramebufferPhysical, 0x00c00000));
894 #else
895 hw.m_pLFB = (smtc_VRAMBaseAddress =
896 ioremap(pFramebufferPhysical, 0x00800000));
897 #endif
898 hw.m_pMMIO = (smtc_RegBaseAddress =
899 smtc_VRAMBaseAddress + 0x00700000);
900 hw.m_pDPR = smtc_VRAMBaseAddress + 0x00408000;
901 hw.m_pVPR = hw.m_pLFB + 0x0040c000;
902 #ifdef __BIG_ENDIAN
903 if (sfb->fb.var.bits_per_pixel == 32) {
904 smtc_VRAMBaseAddress += 0x800000;
905 hw.m_pLFB += 0x800000;
906 printk(KERN_INFO
907 "\nsmtc_VRAMBaseAddress=%p hw.m_pLFB=%p\n",
908 smtc_VRAMBaseAddress, hw.m_pLFB);
909 }
910 #endif
911 if (!smtc_RegBaseAddress) {
912 printk(KERN_INFO
913 "%s: unable to map memory mapped IO\n",
914 sfb->fb.fix.id);
915 err = -ENOMEM;
916 goto failed_fb;
917 }
918
919 /* set MCLK = 14.31818 * (0x16 / 0x2) */
920 smtc_seqw(0x6a, 0x16);
921 smtc_seqw(0x6b, 0x02);
922 smtc_seqw(0x62, 0x3e);
923 /* enable PCI burst */
924 smtc_seqw(0x17, 0x20);
925 /* enable word swap */
926 #ifdef __BIG_ENDIAN
927 if (sfb->fb.var.bits_per_pixel == 32)
928 smtc_seqw(0x17, 0x30);
929 #endif
930 break;
931 case 0x720:
932 sfb->fb.fix.mmio_start = pFramebufferPhysical;
933 sfb->fb.fix.mmio_len = 0x00200000;
934 smem_size = SM722_VIDEOMEMORYSIZE;
935 hw.m_pDPR = ioremap(pFramebufferPhysical, 0x00a00000);
936 hw.m_pLFB = (smtc_VRAMBaseAddress =
937 hw.m_pDPR + 0x00200000);
938 hw.m_pMMIO = (smtc_RegBaseAddress =
939 hw.m_pDPR + 0x000c0000);
940 hw.m_pVPR = hw.m_pDPR + 0x800;
941
942 smtc_seqw(0x62, 0xff);
943 smtc_seqw(0x6a, 0x0d);
944 smtc_seqw(0x6b, 0x02);
945 break;
946 default:
947 printk(KERN_INFO
948 "No valid Silicon Motion display chip was detected!\n");
949
950 goto failed_fb;
951 }
952
953 /* can support 32 bpp */
954 if (15 == sfb->fb.var.bits_per_pixel)
955 sfb->fb.var.bits_per_pixel = 16;
956
957 sfb->fb.var.xres_virtual = sfb->fb.var.xres;
958 sfb->fb.var.yres_virtual = sfb->fb.var.yres;
959 err = smtc_map_smem(sfb, pdev, smem_size);
960 if (err)
961 goto failed;
962
963 smtcfb_setmode(sfb);
964 /* Primary display starting from 0 position */
965 hw.BaseAddressInVRAM = 0;
966 sfb->fb.par = &hw;
967
968 err = register_framebuffer(&sfb->fb);
969 if (err < 0)
970 goto failed;
971
972 printk(KERN_INFO "Silicon Motion SM%X Rev%X primary display mode"
973 "%dx%d-%d Init Complete.\n", hw.chipID, hw.chipRevID,
974 sfb->fb.var.xres, sfb->fb.var.yres,
975 sfb->fb.var.bits_per_pixel);
976
977 return 0;
978
979 failed:
980 printk(KERN_INFO "Silicon Motion, Inc. primary display init fail\n");
981
982 smtc_unmap_smem(sfb);
983 smtc_unmap_mmio(sfb);
984 failed_fb:
985 smtc_free_fb_info(sfb);
986
987 failed_free:
988 pci_disable_device(pdev);
989
990 return err;
991 }
992
993
994 /* Jason (08/11/2009) PCI_DRV wrapper essential structs */
995 static DEFINE_PCI_DEVICE_TABLE(smtcfb_pci_table) = {
996 {0x126f, 0x710, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
997 {0x126f, 0x712, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
998 {0x126f, 0x720, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
999 {0,}
1000 };
1001
1002
1003 /* Jason (08/14/2009)
1004 * do some clean up when the driver module is removed
1005 */
1006 static void __devexit smtcfb_pci_remove(struct pci_dev *pdev)
1007 {
1008 struct smtcfb_info *sfb;
1009
1010 sfb = pci_get_drvdata(pdev);
1011 pci_set_drvdata(pdev, NULL);
1012 smtc_unmap_smem(sfb);
1013 smtc_unmap_mmio(sfb);
1014 unregister_framebuffer(&sfb->fb);
1015 smtc_free_fb_info(sfb);
1016 }
1017
1018 #ifdef CONFIG_PM
1019 /* Jason (08/14/2009)
1020 * suspend function, called when the suspend event is triggered
1021 */
1022 static int __maybe_unused smtcfb_suspend(struct pci_dev *pdev, pm_message_t msg)
1023 {
1024 struct smtcfb_info *sfb;
1025 int retv;
1026
1027 sfb = pci_get_drvdata(pdev);
1028
1029 /* set the hw in sleep mode use externel clock and self memory refresh
1030 * so that we can turn off internal PLLs later on
1031 */
1032 smtc_seqw(0x20, (smtc_seqr(0x20) | 0xc0));
1033 smtc_seqw(0x69, (smtc_seqr(0x69) & 0xf7));
1034
1035 switch (msg.event) {
1036 case PM_EVENT_FREEZE:
1037 case PM_EVENT_PRETHAW:
1038 pdev->dev.power.power_state = msg;
1039 return 0;
1040 }
1041
1042 /* when doing suspend, call fb apis and pci apis */
1043 if (msg.event == PM_EVENT_SUSPEND) {
1044 console_lock();
1045 fb_set_suspend(&sfb->fb, 1);
1046 console_unlock();
1047 retv = pci_save_state(pdev);
1048 pci_disable_device(pdev);
1049 retv = pci_choose_state(pdev, msg);
1050 retv = pci_set_power_state(pdev, retv);
1051 }
1052
1053 pdev->dev.power.power_state = msg;
1054
1055 /* additionally turn off all function blocks including internal PLLs */
1056 smtc_seqw(0x21, 0xff);
1057
1058 return 0;
1059 }
1060
1061 static int __maybe_unused smtcfb_resume(struct pci_dev *pdev)
1062 {
1063 struct smtcfb_info *sfb;
1064 int retv;
1065
1066 sfb = pci_get_drvdata(pdev);
1067
1068 /* when resuming, restore pci data and fb cursor */
1069 if (pdev->dev.power.power_state.event != PM_EVENT_FREEZE) {
1070 retv = pci_set_power_state(pdev, PCI_D0);
1071 pci_restore_state(pdev);
1072 if (pci_enable_device(pdev))
1073 return -1;
1074 pci_set_master(pdev);
1075 }
1076
1077 /* reinit hardware */
1078 sm7xx_init_hw();
1079 switch (hw.chipID) {
1080 case 0x710:
1081 case 0x712:
1082 /* set MCLK = 14.31818 * (0x16 / 0x2) */
1083 smtc_seqw(0x6a, 0x16);
1084 smtc_seqw(0x6b, 0x02);
1085 smtc_seqw(0x62, 0x3e);
1086 /* enable PCI burst */
1087 smtc_seqw(0x17, 0x20);
1088 #ifdef __BIG_ENDIAN
1089 if (sfb->fb.var.bits_per_pixel == 32)
1090 smtc_seqw(0x17, 0x30);
1091 #endif
1092 break;
1093 case 0x720:
1094 smtc_seqw(0x62, 0xff);
1095 smtc_seqw(0x6a, 0x0d);
1096 smtc_seqw(0x6b, 0x02);
1097 break;
1098 }
1099
1100 smtc_seqw(0x34, (smtc_seqr(0x34) | 0xc0));
1101 smtc_seqw(0x33, ((smtc_seqr(0x33) | 0x08) & 0xfb));
1102
1103 smtcfb_setmode(sfb);
1104
1105 console_lock();
1106 fb_set_suspend(&sfb->fb, 0);
1107 console_unlock();
1108
1109 return 0;
1110 }
1111 #endif
1112
1113 /* Jason (08/13/2009)
1114 * pci_driver struct used to wrap the original driver
1115 * so that it can be registered into the kernel and
1116 * the proper method would be called when suspending and resuming
1117 */
1118 static struct pci_driver smtcfb_driver = {
1119 .name = "smtcfb",
1120 .id_table = smtcfb_pci_table,
1121 .probe = smtcfb_pci_probe,
1122 .remove = __devexit_p(smtcfb_pci_remove),
1123 #ifdef CONFIG_PM
1124 .suspend = smtcfb_suspend,
1125 .resume = smtcfb_resume,
1126 #endif
1127 };
1128
1129 static int __init smtcfb_init(void)
1130 {
1131 return pci_register_driver(&smtcfb_driver);
1132 }
1133
1134 static void __exit smtcfb_exit(void)
1135 {
1136 pci_unregister_driver(&smtcfb_driver);
1137 }
1138
1139 module_init(smtcfb_init);
1140 module_exit(smtcfb_exit);
1141
1142 MODULE_AUTHOR("Siliconmotion ");
1143 MODULE_DESCRIPTION("Framebuffer driver for SMI Graphic Cards");
1144 MODULE_LICENSE("GPL");
CJK support for tty framebuffer vt