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[linux/fpc-iii.git] / drivers / staging / sm7xx / smtcfb.c
blobf4b163f7338a41d9fdba29912bdacead56626f0f
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 #ifndef __KERNEL__
30 #define __KERNEL__
31 #endif
32
33 #include <linux/io.h>
34 #include <linux/fb.h>
35 #include <linux/pci.h>
36 #include <linux/init.h>
37 #include <linux/slab.h>
38 #include <linux/uaccess.h>
39 #include <linux/console.h>
40 #include <linux/screen_info.h>
41
42 #ifdef CONFIG_PM
43 #include <linux/pm.h>
44 #endif
45
46 struct screen_info smtc_screen_info;
47
48 #include "smtcfb.h"
49
50 #ifdef DEBUG
51 #define smdbg(format, arg...) printk(KERN_DEBUG format , ## arg)
52 #else
53 #define smdbg(format, arg...)
54 #endif
55
56 /*
57 * Private structure
58 */
59 struct smtcfb_info {
60 /*
61 * The following is a pointer to be passed into the
62 * functions below. The modules outside the main
63 * voyager.c driver have no knowledge as to what
64 * is within this structure.
65 */
66 struct fb_info fb;
67 struct display_switch *dispsw;
68 struct pci_dev *dev;
69 signed int currcon;
70
71 struct {
72 u8 red, green, blue;
73 } palette[NR_RGB];
74
75 u_int palette_size;
76 };
77
78 struct par_info {
79 /*
80 * Hardware
81 */
82 u16 chipID;
83 unsigned char __iomem *m_pMMIO;
84 char __iomem *m_pLFB;
85 char *m_pDPR;
86 char *m_pVPR;
87 char *m_pCPR;
88
89 u_int width;
90 u_int height;
91 u_int hz;
92 u_long BaseAddressInVRAM;
93 u8 chipRevID;
94 };
95
96 struct vesa_mode_table {
97 char mode_index[6];
98 u16 lfb_width;
99 u16 lfb_height;
100 u16 lfb_depth;
101 };
102
103 static struct vesa_mode_table vesa_mode[] = {
104 {"0x301", 640, 480, 8},
105 {"0x303", 800, 600, 8},
106 {"0x305", 1024, 768, 8},
107 {"0x307", 1280, 1024, 8},
108
109 {"0x311", 640, 480, 16},
110 {"0x314", 800, 600, 16},
111 {"0x317", 1024, 768, 16},
112 {"0x31A", 1280, 1024, 16},
113
114 {"0x312", 640, 480, 24},
115 {"0x315", 800, 600, 24},
116 {"0x318", 1024, 768, 24},
117 {"0x31B", 1280, 1024, 24},
118 };
119
120 char __iomem *smtc_RegBaseAddress; /* Memory Map IO starting address */
121 char __iomem *smtc_VRAMBaseAddress; /* video memory starting address */
122
123 static u32 colreg[17];
124 static struct par_info hw; /* hardware information */
125
126 u16 smtc_ChipIDs[] = {
127 0x710,
128 0x712,
129 0x720
130 };
131
132 #define numSMTCchipIDs (sizeof(smtc_ChipIDs) / sizeof(u16))
133
134 static void sm712_set_timing(struct smtcfb_info *sfb,
135 struct par_info *ppar_info)
136 {
137 int i = 0, j = 0;
138 u32 m_nScreenStride;
139
140 smdbg("\nppar_info->width = %d ppar_info->height = %d"
141 "sfb->fb.var.bits_per_pixel = %d ppar_info->hz = %d\n",
142 ppar_info->width, ppar_info->height,
143 sfb->fb.var.bits_per_pixel, ppar_info->hz);
144
145 for (j = 0; j < numVGAModes; j++) {
146 if (VGAMode[j].mmSizeX == ppar_info->width &&
147 VGAMode[j].mmSizeY == ppar_info->height &&
148 VGAMode[j].bpp == sfb->fb.var.bits_per_pixel &&
149 VGAMode[j].hz == ppar_info->hz) {
150
151 smdbg("\nVGAMode[j].mmSizeX = %d VGAMode[j].mmSizeY ="
152 "%d VGAMode[j].bpp = %d"
153 "VGAMode[j].hz=%d\n",
154 VGAMode[j].mmSizeX, VGAMode[j].mmSizeY,
155 VGAMode[j].bpp, VGAMode[j].hz);
156
157 smdbg("VGAMode index=%d\n", j);
158
159 smtc_mmiowb(0x0, 0x3c6);
160
161 smtc_seqw(0, 0x1);
162
163 smtc_mmiowb(VGAMode[j].Init_MISC, 0x3c2);
164
165 /* init SEQ register SR00 - SR04 */
166 for (i = 0; i < SIZE_SR00_SR04; i++)
167 smtc_seqw(i, VGAMode[j].Init_SR00_SR04[i]);
168
169 /* init SEQ register SR10 - SR24 */
170 for (i = 0; i < SIZE_SR10_SR24; i++)
171 smtc_seqw(i + 0x10,
172 VGAMode[j].Init_SR10_SR24[i]);
173
174 /* init SEQ register SR30 - SR75 */
175 for (i = 0; i < SIZE_SR30_SR75; i++)
176 if (((i + 0x30) != 0x62) \
177 && ((i + 0x30) != 0x6a) \
178 && ((i + 0x30) != 0x6b))
179 smtc_seqw(i + 0x30,
180 VGAMode[j].Init_SR30_SR75[i]);
181
182 /* init SEQ register SR80 - SR93 */
183 for (i = 0; i < SIZE_SR80_SR93; i++)
184 smtc_seqw(i + 0x80,
185 VGAMode[j].Init_SR80_SR93[i]);
186
187 /* init SEQ register SRA0 - SRAF */
188 for (i = 0; i < SIZE_SRA0_SRAF; i++)
189 smtc_seqw(i + 0xa0,
190 VGAMode[j].Init_SRA0_SRAF[i]);
191
192 /* init Graphic register GR00 - GR08 */
193 for (i = 0; i < SIZE_GR00_GR08; i++)
194 smtc_grphw(i, VGAMode[j].Init_GR00_GR08[i]);
195
196 /* init Attribute register AR00 - AR14 */
197 for (i = 0; i < SIZE_AR00_AR14; i++)
198 smtc_attrw(i, VGAMode[j].Init_AR00_AR14[i]);
199
200 /* init CRTC register CR00 - CR18 */
201 for (i = 0; i < SIZE_CR00_CR18; i++)
202 smtc_crtcw(i, VGAMode[j].Init_CR00_CR18[i]);
203
204 /* init CRTC register CR30 - CR4D */
205 for (i = 0; i < SIZE_CR30_CR4D; i++)
206 smtc_crtcw(i + 0x30,
207 VGAMode[j].Init_CR30_CR4D[i]);
208
209 /* init CRTC register CR90 - CRA7 */
210 for (i = 0; i < SIZE_CR90_CRA7; i++)
211 smtc_crtcw(i + 0x90,
212 VGAMode[j].Init_CR90_CRA7[i]);
213 }
214 }
215 smtc_mmiowb(0x67, 0x3c2);
216
217 /* set VPR registers */
218 writel(0x0, ppar_info->m_pVPR + 0x0C);
219 writel(0x0, ppar_info->m_pVPR + 0x40);
220
221 /* set data width */
222 m_nScreenStride =
223 (ppar_info->width * sfb->fb.var.bits_per_pixel) / 64;
224 switch (sfb->fb.var.bits_per_pixel) {
225 case 8:
226 writel(0x0, ppar_info->m_pVPR + 0x0);
227 break;
228 case 16:
229 writel(0x00020000, ppar_info->m_pVPR + 0x0);
230 break;
231 case 24:
232 writel(0x00040000, ppar_info->m_pVPR + 0x0);
233 break;
234 case 32:
235 writel(0x00030000, ppar_info->m_pVPR + 0x0);
236 break;
237 }
238 writel((u32) (((m_nScreenStride + 2) << 16) | m_nScreenStride),
239 ppar_info->m_pVPR + 0x10);
240
241 }
242
243 static void sm712_setpalette(int regno, unsigned red, unsigned green,
244 unsigned blue, struct fb_info *info)
245 {
246 struct par_info *cur_par = (struct par_info *)info->par;
247
248 if (cur_par->BaseAddressInVRAM)
249 /*
250 * second display palette for dual head. Enable CRT RAM, 6-bit
251 * RAM
252 */
253 smtc_seqw(0x66, (smtc_seqr(0x66) & 0xC3) | 0x20);
254 else
255 /* primary display palette. Enable LCD RAM only, 6-bit RAM */
256 smtc_seqw(0x66, (smtc_seqr(0x66) & 0xC3) | 0x10);
257 smtc_mmiowb(regno, dac_reg);
258 smtc_mmiowb(red >> 10, dac_val);
259 smtc_mmiowb(green >> 10, dac_val);
260 smtc_mmiowb(blue >> 10, dac_val);
261 }
262
263 static void smtc_set_timing(struct smtcfb_info *sfb, struct par_info
264 *ppar_info)
265 {
266 switch (ppar_info->chipID) {
267 case 0x710:
268 case 0x712:
269 case 0x720:
270 sm712_set_timing(sfb, ppar_info);
271 break;
272 }
273 }
274
275 static struct fb_var_screeninfo smtcfb_var = {
276 .xres = 1024,
277 .yres = 600,
278 .xres_virtual = 1024,
279 .yres_virtual = 600,
280 .bits_per_pixel = 16,
281 .red = {16, 8, 0},
282 .green = {8, 8, 0},
283 .blue = {0, 8, 0},
284 .activate = FB_ACTIVATE_NOW,
285 .height = -1,
286 .width = -1,
287 .vmode = FB_VMODE_NONINTERLACED,
288 };
289
290 static struct fb_fix_screeninfo smtcfb_fix = {
291 .id = "sm712fb",
292 .type = FB_TYPE_PACKED_PIXELS,
293 .visual = FB_VISUAL_TRUECOLOR,
294 .line_length = 800 * 3,
295 .accel = FB_ACCEL_SMI_LYNX,
296 };
297
298 /* chan_to_field
299 *
300 * convert a colour value into a field position
301 *
302 * from pxafb.c
303 */
304
305 static inline unsigned int chan_to_field(unsigned int chan,
306 struct fb_bitfield *bf)
307 {
308 chan &= 0xffff;
309 chan >>= 16 - bf->length;
310 return chan << bf->offset;
311 }
312
313 static int cfb_blank(int blank_mode, struct fb_info *info)
314 {
315 /* clear DPMS setting */
316 switch (blank_mode) {
317 case FB_BLANK_UNBLANK:
318 /* Screen On: HSync: On, VSync : On */
319 smtc_seqw(0x01, (smtc_seqr(0x01) & (~0x20)));
320 smtc_seqw(0x6a, 0x16);
321 smtc_seqw(0x6b, 0x02);
322 smtc_seqw(0x21, (smtc_seqr(0x21) & 0x77));
323 smtc_seqw(0x22, (smtc_seqr(0x22) & (~0x30)));
324 smtc_seqw(0x23, (smtc_seqr(0x23) & (~0xc0)));
325 smtc_seqw(0x24, (smtc_seqr(0x24) | 0x01));
326 smtc_seqw(0x31, (smtc_seqr(0x31) | 0x03));
327 break;
328 case FB_BLANK_NORMAL:
329 /* Screen Off: HSync: On, VSync : On Soft blank */
330 smtc_seqw(0x01, (smtc_seqr(0x01) & (~0x20)));
331 smtc_seqw(0x6a, 0x16);
332 smtc_seqw(0x6b, 0x02);
333 smtc_seqw(0x22, (smtc_seqr(0x22) & (~0x30)));
334 smtc_seqw(0x23, (smtc_seqr(0x23) & (~0xc0)));
335 smtc_seqw(0x24, (smtc_seqr(0x24) | 0x01));
336 smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00));
337 break;
338 case FB_BLANK_VSYNC_SUSPEND:
339 /* Screen On: HSync: On, VSync : Off */
340 smtc_seqw(0x01, (smtc_seqr(0x01) | 0x20));
341 smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0)));
342 smtc_seqw(0x6a, 0x0c);
343 smtc_seqw(0x6b, 0x02);
344 smtc_seqw(0x21, (smtc_seqr(0x21) | 0x88));
345 smtc_seqw(0x22, ((smtc_seqr(0x22) & (~0x30)) | 0x20));
346 smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0x20));
347 smtc_seqw(0x24, (smtc_seqr(0x24) & (~0x01)));
348 smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00));
349 smtc_seqw(0x34, (smtc_seqr(0x34) | 0x80));
350 break;
351 case FB_BLANK_HSYNC_SUSPEND:
352 /* Screen On: HSync: Off, VSync : On */
353 smtc_seqw(0x01, (smtc_seqr(0x01) | 0x20));
354 smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0)));
355 smtc_seqw(0x6a, 0x0c);
356 smtc_seqw(0x6b, 0x02);
357 smtc_seqw(0x21, (smtc_seqr(0x21) | 0x88));
358 smtc_seqw(0x22, ((smtc_seqr(0x22) & (~0x30)) | 0x10));
359 smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0xD8));
360 smtc_seqw(0x24, (smtc_seqr(0x24) & (~0x01)));
361 smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00));
362 smtc_seqw(0x34, (smtc_seqr(0x34) | 0x80));
363 break;
364 case FB_BLANK_POWERDOWN:
365 /* Screen On: HSync: Off, VSync : Off */
366 smtc_seqw(0x01, (smtc_seqr(0x01) | 0x20));
367 smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0)));
368 smtc_seqw(0x6a, 0x0c);
369 smtc_seqw(0x6b, 0x02);
370 smtc_seqw(0x21, (smtc_seqr(0x21) | 0x88));
371 smtc_seqw(0x22, ((smtc_seqr(0x22) & (~0x30)) | 0x30));
372 smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0xD8));
373 smtc_seqw(0x24, (smtc_seqr(0x24) & (~0x01)));
374 smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00));
375 smtc_seqw(0x34, (smtc_seqr(0x34) | 0x80));
376 break;
377 default:
378 return -EINVAL;
379 }
380
381 return 0;
382 }
383
384 static int smtc_setcolreg(unsigned regno, unsigned red, unsigned green,
385 unsigned blue, unsigned trans, struct fb_info *info)
386 {
387 struct smtcfb_info *sfb = (struct smtcfb_info *)info;
388 u32 val;
389
390 if (regno > 255)
391 return 1;
392
393 switch (sfb->fb.fix.visual) {
394 case FB_VISUAL_DIRECTCOLOR:
395 case FB_VISUAL_TRUECOLOR:
396 /*
397 * 16/32 bit true-colour, use pseuo-palette for 16 base color
398 */
399 if (regno < 16) {
400 if (sfb->fb.var.bits_per_pixel == 16) {
401 u32 *pal = sfb->fb.pseudo_palette;
402 val = chan_to_field(red, &sfb->fb.var.red);
403 val |= chan_to_field(green, \
404 &sfb->fb.var.green);
405 val |= chan_to_field(blue, &sfb->fb.var.blue);
406 #ifdef __BIG_ENDIAN
407 pal[regno] =
408 ((red & 0xf800) >> 8) |
409 ((green & 0xe000) >> 13) |
410 ((green & 0x1c00) << 3) |
411 ((blue & 0xf800) >> 3);
412 #else
413 pal[regno] = val;
414 #endif
415 } else {
416 u32 *pal = sfb->fb.pseudo_palette;
417 val = chan_to_field(red, &sfb->fb.var.red);
418 val |= chan_to_field(green, \
419 &sfb->fb.var.green);
420 val |= chan_to_field(blue, &sfb->fb.var.blue);
421 #ifdef __BIG_ENDIAN
422 val =
423 (val & 0xff00ff00 >> 8) |
424 (val & 0x00ff00ff << 8);
425 #endif
426 pal[regno] = val;
427 }
428 }
429 break;
430
431 case FB_VISUAL_PSEUDOCOLOR:
432 /* color depth 8 bit */
433 sm712_setpalette(regno, red, green, blue, info);
434 break;
435
436 default:
437 return 1; /* unknown type */
438 }
439
440 return 0;
441
442 }
443
444 #ifdef __BIG_ENDIAN
445 static ssize_t smtcfb_read(struct fb_info *info, char __user * buf, size_t
446 count, loff_t *ppos)
447 {
448 unsigned long p = *ppos;
449
450 u32 *buffer, *dst;
451 u32 __iomem *src;
452 int c, i, cnt = 0, err = 0;
453 unsigned long total_size;
454
455 if (!info || !info->screen_base)
456 return -ENODEV;
457
458 if (info->state != FBINFO_STATE_RUNNING)
459 return -EPERM;
460
461 total_size = info->screen_size;
462
463 if (total_size == 0)
464 total_size = info->fix.smem_len;
465
466 if (p >= total_size)
467 return 0;
468
469 if (count >= total_size)
470 count = total_size;
471
472 if (count + p > total_size)
473 count = total_size - p;
474
475 buffer = kmalloc((count > PAGE_SIZE) ? PAGE_SIZE : count, GFP_KERNEL);
476 if (!buffer)
477 return -ENOMEM;
478
479 src = (u32 __iomem *) (info->screen_base + p);
480
481 if (info->fbops->fb_sync)
482 info->fbops->fb_sync(info);
483
484 while (count) {
485 c = (count > PAGE_SIZE) ? PAGE_SIZE : count;
486 dst = buffer;
487 for (i = c >> 2; i--;) {
488 *dst = fb_readl(src++);
489 *dst =
490 (*dst & 0xff00ff00 >> 8) |
491 (*dst & 0x00ff00ff << 8);
492 dst++;
493 }
494 if (c & 3) {
495 u8 *dst8 = (u8 *) dst;
496 u8 __iomem *src8 = (u8 __iomem *) src;
497
498 for (i = c & 3; i--;) {
499 if (i & 1) {
500 *dst8++ = fb_readb(++src8);
501 } else {
502 *dst8++ = fb_readb(--src8);
503 src8 += 2;
504 }
505 }
506 src = (u32 __iomem *) src8;
507 }
508
509 if (copy_to_user(buf, buffer, c)) {
510 err = -EFAULT;
511 break;
512 }
513 *ppos += c;
514 buf += c;
515 cnt += c;
516 count -= c;
517 }
518
519 kfree(buffer);
520
521 return (err) ? err : cnt;
522 }
523
524 static ssize_t
525 smtcfb_write(struct fb_info *info, const char __user *buf, size_t count,
526 loff_t *ppos)
527 {
528 unsigned long p = *ppos;
529
530 u32 *buffer, *src;
531 u32 __iomem *dst;
532 int c, i, cnt = 0, err = 0;
533 unsigned long total_size;
534
535 if (!info || !info->screen_base)
536 return -ENODEV;
537
538 if (info->state != FBINFO_STATE_RUNNING)
539 return -EPERM;
540
541 total_size = info->screen_size;
542
543 if (total_size == 0)
544 total_size = info->fix.smem_len;
545
546 if (p > total_size)
547 return -EFBIG;
548
549 if (count > total_size) {
550 err = -EFBIG;
551 count = total_size;
552 }
553
554 if (count + p > total_size) {
555 if (!err)
556 err = -ENOSPC;
557
558 count = total_size - p;
559 }
560
561 buffer = kmalloc((count > PAGE_SIZE) ? PAGE_SIZE : count, GFP_KERNEL);
562 if (!buffer)
563 return -ENOMEM;
564
565 dst = (u32 __iomem *) (info->screen_base + p);
566
567 if (info->fbops->fb_sync)
568 info->fbops->fb_sync(info);
569
570 while (count) {
571 c = (count > PAGE_SIZE) ? PAGE_SIZE : count;
572 src = buffer;
573
574 if (copy_from_user(src, buf, c)) {
575 err = -EFAULT;
576 break;
577 }
578
579 for (i = c >> 2; i--;) {
580 fb_writel((*src & 0xff00ff00 >> 8) |
581 (*src & 0x00ff00ff << 8), dst++);
582 src++;
583 }
584 if (c & 3) {
585 u8 *src8 = (u8 *) src;
586 u8 __iomem *dst8 = (u8 __iomem *) dst;
587
588 for (i = c & 3; i--;) {
589 if (i & 1) {
590 fb_writeb(*src8++, ++dst8);
591 } else {
592 fb_writeb(*src8++, --dst8);
593 dst8 += 2;
594 }
595 }
596 dst = (u32 __iomem *) dst8;
597 }
598
599 *ppos += c;
600 buf += c;
601 cnt += c;
602 count -= c;
603 }
604
605 kfree(buffer);
606
607 return (cnt) ? cnt : err;
608 }
609 #endif /* ! __BIG_ENDIAN */
610
611 static struct fb_ops smtcfb_ops = {
612 .owner = THIS_MODULE,
613 .fb_setcolreg = smtc_setcolreg,
614 .fb_blank = cfb_blank,
615 .fb_fillrect = cfb_fillrect,
616 .fb_imageblit = cfb_imageblit,
617 .fb_copyarea = cfb_copyarea,
618 #ifdef __BIG_ENDIAN
619 .fb_read = smtcfb_read,
620 .fb_write = smtcfb_write,
621 #endif
622
623 };
624
625 void smtcfb_setmode(struct smtcfb_info *sfb)
626 {
627 switch (sfb->fb.var.bits_per_pixel) {
628 case 32:
629 sfb->fb.fix.visual = FB_VISUAL_TRUECOLOR;
630 sfb->fb.fix.line_length = sfb->fb.var.xres * 4;
631 sfb->fb.var.red.length = 8;
632 sfb->fb.var.green.length = 8;
633 sfb->fb.var.blue.length = 8;
634 sfb->fb.var.red.offset = 16;
635 sfb->fb.var.green.offset = 8;
636 sfb->fb.var.blue.offset = 0;
637
638 break;
639 case 8:
640 sfb->fb.fix.visual = FB_VISUAL_PSEUDOCOLOR;
641 sfb->fb.fix.line_length = sfb->fb.var.xres;
642 sfb->fb.var.red.offset = 5;
643 sfb->fb.var.red.length = 3;
644 sfb->fb.var.green.offset = 2;
645 sfb->fb.var.green.length = 3;
646 sfb->fb.var.blue.offset = 0;
647 sfb->fb.var.blue.length = 2;
648 break;
649 case 24:
650 sfb->fb.fix.visual = FB_VISUAL_TRUECOLOR;
651 sfb->fb.fix.line_length = sfb->fb.var.xres * 3;
652 sfb->fb.var.red.length = 8;
653 sfb->fb.var.green.length = 8;
654 sfb->fb.var.blue.length = 8;
655
656 sfb->fb.var.red.offset = 16;
657 sfb->fb.var.green.offset = 8;
658 sfb->fb.var.blue.offset = 0;
659
660 break;
661 case 16:
662 default:
663 sfb->fb.fix.visual = FB_VISUAL_TRUECOLOR;
664 sfb->fb.fix.line_length = sfb->fb.var.xres * 2;
665
666 sfb->fb.var.red.length = 5;
667 sfb->fb.var.green.length = 6;
668 sfb->fb.var.blue.length = 5;
669
670 sfb->fb.var.red.offset = 11;
671 sfb->fb.var.green.offset = 5;
672 sfb->fb.var.blue.offset = 0;
673
674 break;
675 }
676
677 hw.width = sfb->fb.var.xres;
678 hw.height = sfb->fb.var.yres;
679 hw.hz = 60;
680 smtc_set_timing(sfb, &hw);
681 }
682
683 /*
684 * Alloc struct smtcfb_info and assign the default value
685 */
686 static struct smtcfb_info *smtc_alloc_fb_info(struct pci_dev *dev,
687 char *name)
688 {
689 struct smtcfb_info *sfb;
690
691 sfb = kzalloc(sizeof(struct smtcfb_info), GFP_KERNEL);
692
693 if (!sfb)
694 return NULL;
695
696 sfb->currcon = -1;
697 sfb->dev = dev;
698
699 /*** Init sfb->fb with default value ***/
700 sfb->fb.flags = FBINFO_FLAG_DEFAULT;
701 sfb->fb.fbops = &smtcfb_ops;
702 sfb->fb.var = smtcfb_var;
703 sfb->fb.fix = smtcfb_fix;
704
705 strcpy(sfb->fb.fix.id, name);
706
707 sfb->fb.fix.type = FB_TYPE_PACKED_PIXELS;
708 sfb->fb.fix.type_aux = 0;
709 sfb->fb.fix.xpanstep = 0;
710 sfb->fb.fix.ypanstep = 0;
711 sfb->fb.fix.ywrapstep = 0;
712 sfb->fb.fix.accel = FB_ACCEL_SMI_LYNX;
713
714 sfb->fb.var.nonstd = 0;
715 sfb->fb.var.activate = FB_ACTIVATE_NOW;
716 sfb->fb.var.height = -1;
717 sfb->fb.var.width = -1;
718 /* text mode acceleration */
719 sfb->fb.var.accel_flags = FB_ACCELF_TEXT;
720 sfb->fb.var.vmode = FB_VMODE_NONINTERLACED;
721 sfb->fb.par = &hw;
722 sfb->fb.pseudo_palette = colreg;
723
724 return sfb;
725 }
726
727 /*
728 * Unmap in the memory mapped IO registers
729 */
730
731 static void smtc_unmap_mmio(struct smtcfb_info *sfb)
732 {
733 if (sfb && smtc_RegBaseAddress)
734 smtc_RegBaseAddress = NULL;
735 }
736
737 /*
738 * Map in the screen memory
739 */
740
741 static int smtc_map_smem(struct smtcfb_info *sfb,
742 struct pci_dev *dev, u_long smem_len)
743 {
744 if (sfb->fb.var.bits_per_pixel == 32) {
745 #ifdef __BIG_ENDIAN
746 sfb->fb.fix.smem_start = pci_resource_start(dev, 0)
747 + 0x800000;
748 #else
749 sfb->fb.fix.smem_start = pci_resource_start(dev, 0);
750 #endif
751 } else {
752 sfb->fb.fix.smem_start = pci_resource_start(dev, 0);
753 }
754
755 sfb->fb.fix.smem_len = smem_len;
756
757 sfb->fb.screen_base = smtc_VRAMBaseAddress;
758
759 if (!sfb->fb.screen_base) {
760 printk(KERN_INFO "%s: unable to map screen memory\n",
761 sfb->fb.fix.id);
762 return -ENOMEM;
763 }
764
765 return 0;
766 }
767
768 /*
769 * Unmap in the screen memory
770 *
771 */
772 static void smtc_unmap_smem(struct smtcfb_info *sfb)
773 {
774 if (sfb && sfb->fb.screen_base) {
775 iounmap(sfb->fb.screen_base);
776 sfb->fb.screen_base = NULL;
777 }
778 }
779
780 /*
781 * We need to wake up the LynxEM+, and make sure its in linear memory mode.
782 */
783 static inline void sm7xx_init_hw(void)
784 {
785 outb_p(0x18, 0x3c4);
786 outb_p(0x11, 0x3c5);
787 }
788
789 static void smtc_free_fb_info(struct smtcfb_info *sfb)
790 {
791 if (sfb) {
792 fb_alloc_cmap(&sfb->fb.cmap, 0, 0);
793 kfree(sfb);
794 }
795 }
796
797 /*
798 * sm712vga_setup - process command line options, get vga parameter
799 * @options: string of options
800 * Returns zero.
801 *
802 */
803 static int __init __maybe_unused sm712vga_setup(char *options)
804 {
805 int index;
806
807 if (!options || !*options) {
808 smdbg("\n No vga parameter\n");
809 return -EINVAL;
810 }
811
812 smtc_screen_info.lfb_width = 0;
813 smtc_screen_info.lfb_height = 0;
814 smtc_screen_info.lfb_depth = 0;
815
816 smdbg("\nsm712vga_setup = %s\n", options);
817
818 for (index = 0;
819 index < (sizeof(vesa_mode) / sizeof(struct vesa_mode_table));
820 index++) {
821 if (strstr(options, vesa_mode[index].mode_index)) {
822 smtc_screen_info.lfb_width = vesa_mode[index].lfb_width;
823 smtc_screen_info.lfb_height =
824 vesa_mode[index].lfb_height;
825 smtc_screen_info.lfb_depth = vesa_mode[index].lfb_depth;
826 return 0;
827 }
828 }
829
830 return -1;
831 }
832 __setup("vga=", sm712vga_setup);
833
834 /* Jason (08/13/2009)
835 * Original init function changed to probe method to be used by pci_drv
836 * process used to detect chips replaced with kernel process in pci_drv
837 */
838 static int __devinit smtcfb_pci_probe(struct pci_dev *pdev,
839 const struct pci_device_id *ent)
840 {
841 struct smtcfb_info *sfb;
842 u_long smem_size = 0x00800000; /* default 8MB */
843 char name[16];
844 int err;
845 unsigned long pFramebufferPhysical;
846
847 printk(KERN_INFO
848 "Silicon Motion display driver " SMTC_LINUX_FB_VERSION "\n");
849
850 err = pci_enable_device(pdev); /* enable SMTC chip */
851 if (err)
852 return err;
853 err = -ENOMEM;
854
855 hw.chipID = ent->device;
856 sprintf(name, "sm%Xfb", hw.chipID);
857
858 sfb = smtc_alloc_fb_info(pdev, name);
859
860 if (!sfb)
861 goto failed_free;
862 /* Jason (08/13/2009)
863 * Store fb_info to be further used when suspending and resuming
864 */
865 pci_set_drvdata(pdev, sfb);
866
867 sm7xx_init_hw();
868
869 /*get mode parameter from smtc_screen_info */
870 if (smtc_screen_info.lfb_width != 0) {
871 sfb->fb.var.xres = smtc_screen_info.lfb_width;
872 sfb->fb.var.yres = smtc_screen_info.lfb_height;
873 sfb->fb.var.bits_per_pixel = smtc_screen_info.lfb_depth;
874 } else {
875 /* default resolution 1024x600 16bit mode */
876 sfb->fb.var.xres = SCREEN_X_RES;
877 sfb->fb.var.yres = SCREEN_Y_RES;
878 sfb->fb.var.bits_per_pixel = SCREEN_BPP;
879 }
880
881 #ifdef __BIG_ENDIAN
882 if (sfb->fb.var.bits_per_pixel == 24)
883 sfb->fb.var.bits_per_pixel = (smtc_screen_info.lfb_depth = 32);
884 #endif
885 /* Map address and memory detection */
886 pFramebufferPhysical = pci_resource_start(pdev, 0);
887 pci_read_config_byte(pdev, PCI_REVISION_ID, &hw.chipRevID);
888
889 switch (hw.chipID) {
890 case 0x710:
891 case 0x712:
892 sfb->fb.fix.mmio_start = pFramebufferPhysical + 0x00400000;
893 sfb->fb.fix.mmio_len = 0x00400000;
894 smem_size = SM712_VIDEOMEMORYSIZE;
895 #ifdef __BIG_ENDIAN
896 hw.m_pLFB = (smtc_VRAMBaseAddress =
897 ioremap(pFramebufferPhysical, 0x00c00000));
898 #else
899 hw.m_pLFB = (smtc_VRAMBaseAddress =
900 ioremap(pFramebufferPhysical, 0x00800000));
901 #endif
902 hw.m_pMMIO = (smtc_RegBaseAddress =
903 smtc_VRAMBaseAddress + 0x00700000);
904 hw.m_pDPR = smtc_VRAMBaseAddress + 0x00408000;
905 hw.m_pVPR = hw.m_pLFB + 0x0040c000;
906 #ifdef __BIG_ENDIAN
907 if (sfb->fb.var.bits_per_pixel == 32) {
908 smtc_VRAMBaseAddress += 0x800000;
909 hw.m_pLFB += 0x800000;
910 printk(KERN_INFO
911 "\nsmtc_VRAMBaseAddress=%p hw.m_pLFB=%p\n",
912 smtc_VRAMBaseAddress, hw.m_pLFB);
913 }
914 #endif
915 if (!smtc_RegBaseAddress) {
916 printk(KERN_INFO
917 "%s: unable to map memory mapped IO\n",
918 sfb->fb.fix.id);
919 err = -ENOMEM;
920 goto failed_fb;
921 }
922
923 /* set MCLK = 14.31818 * (0x16 / 0x2) */
924 smtc_seqw(0x6a, 0x16);
925 smtc_seqw(0x6b, 0x02);
926 smtc_seqw(0x62, 0x3e);
927 /* enable PCI burst */
928 smtc_seqw(0x17, 0x20);
929 /* enable word swap */
930 #ifdef __BIG_ENDIAN
931 if (sfb->fb.var.bits_per_pixel == 32)
932 smtc_seqw(0x17, 0x30);
933 #endif
934 break;
935 case 0x720:
936 sfb->fb.fix.mmio_start = pFramebufferPhysical;
937 sfb->fb.fix.mmio_len = 0x00200000;
938 smem_size = SM722_VIDEOMEMORYSIZE;
939 hw.m_pDPR = ioremap(pFramebufferPhysical, 0x00a00000);
940 hw.m_pLFB = (smtc_VRAMBaseAddress =
941 hw.m_pDPR + 0x00200000);
942 hw.m_pMMIO = (smtc_RegBaseAddress =
943 hw.m_pDPR + 0x000c0000);
944 hw.m_pVPR = hw.m_pDPR + 0x800;
945
946 smtc_seqw(0x62, 0xff);
947 smtc_seqw(0x6a, 0x0d);
948 smtc_seqw(0x6b, 0x02);
949 break;
950 default:
951 printk(KERN_INFO
952 "No valid Silicon Motion display chip was detected!\n");
953
954 goto failed_fb;
955 }
956
957 /* can support 32 bpp */
958 if (15 == sfb->fb.var.bits_per_pixel)
959 sfb->fb.var.bits_per_pixel = 16;
960
961 sfb->fb.var.xres_virtual = sfb->fb.var.xres;
962 sfb->fb.var.yres_virtual = sfb->fb.var.yres;
963 err = smtc_map_smem(sfb, pdev, smem_size);
964 if (err)
965 goto failed;
966
967 smtcfb_setmode(sfb);
968 /* Primary display starting from 0 postion */
969 hw.BaseAddressInVRAM = 0;
970 sfb->fb.par = &hw;
971
972 err = register_framebuffer(&sfb->fb);
973 if (err < 0)
974 goto failed;
975
976 printk(KERN_INFO "Silicon Motion SM%X Rev%X primary display mode"
977 "%dx%d-%d Init Complete.\n", hw.chipID, hw.chipRevID,
978 sfb->fb.var.xres, sfb->fb.var.yres,
979 sfb->fb.var.bits_per_pixel);
980
981 return 0;
982
983 failed:
984 printk(KERN_INFO "Silicon Motion, Inc. primary display init fail\n");
985
986 smtc_unmap_smem(sfb);
987 smtc_unmap_mmio(sfb);
988 failed_fb:
989 smtc_free_fb_info(sfb);
990
991 failed_free:
992 pci_disable_device(pdev);
993
994 return err;
995 }
996
997
998 /* Jason (08/11/2009) PCI_DRV wrapper essential structs */
999 static DEFINE_PCI_DEVICE_TABLE(smtcfb_pci_table) = {
1000 {0x126f, 0x710, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1001 {0x126f, 0x712, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1002 {0x126f, 0x720, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1003 {0,}
1004 };
1005
1006
1007 /* Jason (08/14/2009)
1008 * do some clean up when the driver module is removed
1009 */
1010 static void __devexit smtcfb_pci_remove(struct pci_dev *pdev)
1011 {
1012 struct smtcfb_info *sfb;
1013
1014 sfb = pci_get_drvdata(pdev);
1015 pci_set_drvdata(pdev, NULL);
1016 smtc_unmap_smem(sfb);
1017 smtc_unmap_mmio(sfb);
1018 unregister_framebuffer(&sfb->fb);
1019 smtc_free_fb_info(sfb);
1020 }
1021
1022 /* Jason (08/14/2009)
1023 * suspend function, called when the suspend event is triggered
1024 */
1025 static int __maybe_unused smtcfb_suspend(struct pci_dev *pdev, pm_message_t msg)
1026 {
1027 struct smtcfb_info *sfb;
1028 int retv;
1029
1030 sfb = pci_get_drvdata(pdev);
1031
1032 /* set the hw in sleep mode use externel clock and self memory refresh
1033 * so that we can turn off internal PLLs later on
1034 */
1035 smtc_seqw(0x20, (smtc_seqr(0x20) | 0xc0));
1036 smtc_seqw(0x69, (smtc_seqr(0x69) & 0xf7));
1037
1038 switch (msg.event) {
1039 case PM_EVENT_FREEZE:
1040 case PM_EVENT_PRETHAW:
1041 pdev->dev.power.power_state = msg;
1042 return 0;
1043 }
1044
1045 /* when doing suspend, call fb apis and pci apis */
1046 if (msg.event == PM_EVENT_SUSPEND) {
1047 acquire_console_sem();
1048 fb_set_suspend(&sfb->fb, 1);
1049 release_console_sem();
1050 retv = pci_save_state(pdev);
1051 pci_disable_device(pdev);
1052 retv = pci_choose_state(pdev, msg);
1053 retv = pci_set_power_state(pdev, retv);
1054 }
1055
1056 pdev->dev.power.power_state = msg;
1057
1058 /* additionaly turn off all function blocks including internal PLLs */
1059 smtc_seqw(0x21, 0xff);
1060
1061 return 0;
1062 }
1063
1064 static int __maybe_unused smtcfb_resume(struct pci_dev *pdev)
1065 {
1066 struct smtcfb_info *sfb;
1067 int retv;
1068
1069 sfb = pci_get_drvdata(pdev);
1070
1071 /* when resuming, restore pci data and fb cursor */
1072 if (pdev->dev.power.power_state.event != PM_EVENT_FREEZE) {
1073 retv = pci_set_power_state(pdev, PCI_D0);
1074 retv = pci_restore_state(pdev);
1075 if (pci_enable_device(pdev))
1076 return -1;
1077 pci_set_master(pdev);
1078 }
1079
1080 /* reinit hardware */
1081 sm7xx_init_hw();
1082 switch (hw.chipID) {
1083 case 0x710:
1084 case 0x712:
1085 /* set MCLK = 14.31818 * (0x16 / 0x2) */
1086 smtc_seqw(0x6a, 0x16);
1087 smtc_seqw(0x6b, 0x02);
1088 smtc_seqw(0x62, 0x3e);
1089 /* enable PCI burst */
1090 smtc_seqw(0x17, 0x20);
1091 #ifdef __BIG_ENDIAN
1092 if (sfb->fb.var.bits_per_pixel == 32)
1093 smtc_seqw(0x17, 0x30);
1094 #endif
1095 break;
1096 case 0x720:
1097 smtc_seqw(0x62, 0xff);
1098 smtc_seqw(0x6a, 0x0d);
1099 smtc_seqw(0x6b, 0x02);
1100 break;
1101 }
1102
1103 smtc_seqw(0x34, (smtc_seqr(0x34) | 0xc0));
1104 smtc_seqw(0x33, ((smtc_seqr(0x33) | 0x08) & 0xfb));
1105
1106 smtcfb_setmode(sfb);
1107
1108 acquire_console_sem();
1109 fb_set_suspend(&sfb->fb, 0);
1110 release_console_sem();
1111
1112 return 0;
1113 }
1114
1115 /* Jason (08/13/2009)
1116 * pci_driver struct used to wrap the original driver
1117 * so that it can be registered into the kernel and
1118 * the proper method would be called when suspending and resuming
1119 */
1120 static struct pci_driver smtcfb_driver = {
1121 .name = "smtcfb",
1122 .id_table = smtcfb_pci_table,
1123 .probe = smtcfb_pci_probe,
1124 .remove = __devexit_p(smtcfb_pci_remove),
1125 #ifdef CONFIG_PM
1126 .suspend = smtcfb_suspend,
1127 .resume = smtcfb_resume,
1128 #endif
1129 };
1130
1131 static int __init smtcfb_init(void)
1132 {
1133 return pci_register_driver(&smtcfb_driver);
1134 }
1135
1136 static void __exit smtcfb_exit(void)
1137 {
1138 pci_unregister_driver(&smtcfb_driver);
1139 }
1140
1141 module_init(smtcfb_init);
1142 module_exit(smtcfb_exit);
1143
1144 MODULE_AUTHOR("Siliconmotion ");
1145 MODULE_DESCRIPTION("Framebuffer driver for SMI Graphic Cards");
1146 MODULE_LICENSE("GPL");
Linux with added FPC-III support