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Merge branch 'x86-ptrace-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
[mirror_ubuntu-hirsute-kernel.git] / drivers / staging / sm7xx / smtcfb.c
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/uaccess.h>
38 #include <linux/console.h>
39 #include <linux/screen_info.h>
40
41 #ifdef CONFIG_PM
42 #include <linux/pm.h>
43 #endif
44
45 struct screen_info smtc_screen_info;
46
47 #include "smtcfb.h"
48 #include "smtc2d.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 char *smtc_2DBaseAddress; /* 2D engine starting address */
124 char *smtc_2Ddataport; /* 2D data port offset */
125 short smtc_2Dacceleration;
126
127 static u32 colreg[17];
128 static struct par_info hw; /* hardware information */
129
130 u16 smtc_ChipIDs[] = {
131 0x710,
132 0x712,
133 0x720
134 };
135
136 #define numSMTCchipIDs (sizeof(smtc_ChipIDs) / sizeof(u16))
137
138 void deWaitForNotBusy(void)
139 {
140 unsigned long i = 0x1000000;
141 while (i--) {
142 if ((smtc_seqr(0x16) & 0x18) == 0x10)
143 break;
144 }
145 smtc_de_busy = 0;
146 }
147
148 static void sm712_set_timing(struct smtcfb_info *sfb,
149 struct par_info *ppar_info)
150 {
151 int i = 0, j = 0;
152 u32 m_nScreenStride;
153
154 smdbg("\nppar_info->width = %d ppar_info->height = %d"
155 "sfb->fb.var.bits_per_pixel = %d ppar_info->hz = %d\n",
156 ppar_info->width, ppar_info->height,
157 sfb->fb.var.bits_per_pixel, ppar_info->hz);
158
159 for (j = 0; j < numVGAModes; j++) {
160 if (VGAMode[j].mmSizeX == ppar_info->width &&
161 VGAMode[j].mmSizeY == ppar_info->height &&
162 VGAMode[j].bpp == sfb->fb.var.bits_per_pixel &&
163 VGAMode[j].hz == ppar_info->hz) {
164
165 smdbg("\nVGAMode[j].mmSizeX = %d VGAMode[j].mmSizeY ="
166 "%d VGAMode[j].bpp = %d"
167 "VGAMode[j].hz=%d\n",
168 VGAMode[j].mmSizeX, VGAMode[j].mmSizeY,
169 VGAMode[j].bpp, VGAMode[j].hz);
170
171 smdbg("VGAMode index=%d\n", j);
172
173 smtc_mmiowb(0x0, 0x3c6);
174
175 smtc_seqw(0, 0x1);
176
177 smtc_mmiowb(VGAMode[j].Init_MISC, 0x3c2);
178
179 /* init SEQ register SR00 - SR04 */
180 for (i = 0; i < SIZE_SR00_SR04; i++)
181 smtc_seqw(i, VGAMode[j].Init_SR00_SR04[i]);
182
183 /* init SEQ register SR10 - SR24 */
184 for (i = 0; i < SIZE_SR10_SR24; i++)
185 smtc_seqw(i + 0x10,
186 VGAMode[j].Init_SR10_SR24[i]);
187
188 /* init SEQ register SR30 - SR75 */
189 for (i = 0; i < SIZE_SR30_SR75; i++)
190 if (((i + 0x30) != 0x62) \
191 && ((i + 0x30) != 0x6a) \
192 && ((i + 0x30) != 0x6b))
193 smtc_seqw(i + 0x30,
194 VGAMode[j].Init_SR30_SR75[i]);
195
196 /* init SEQ register SR80 - SR93 */
197 for (i = 0; i < SIZE_SR80_SR93; i++)
198 smtc_seqw(i + 0x80,
199 VGAMode[j].Init_SR80_SR93[i]);
200
201 /* init SEQ register SRA0 - SRAF */
202 for (i = 0; i < SIZE_SRA0_SRAF; i++)
203 smtc_seqw(i + 0xa0,
204 VGAMode[j].Init_SRA0_SRAF[i]);
205
206 /* init Graphic register GR00 - GR08 */
207 for (i = 0; i < SIZE_GR00_GR08; i++)
208 smtc_grphw(i, VGAMode[j].Init_GR00_GR08[i]);
209
210 /* init Attribute register AR00 - AR14 */
211 for (i = 0; i < SIZE_AR00_AR14; i++)
212 smtc_attrw(i, VGAMode[j].Init_AR00_AR14[i]);
213
214 /* init CRTC register CR00 - CR18 */
215 for (i = 0; i < SIZE_CR00_CR18; i++)
216 smtc_crtcw(i, VGAMode[j].Init_CR00_CR18[i]);
217
218 /* init CRTC register CR30 - CR4D */
219 for (i = 0; i < SIZE_CR30_CR4D; i++)
220 smtc_crtcw(i + 0x30,
221 VGAMode[j].Init_CR30_CR4D[i]);
222
223 /* init CRTC register CR90 - CRA7 */
224 for (i = 0; i < SIZE_CR90_CRA7; i++)
225 smtc_crtcw(i + 0x90,
226 VGAMode[j].Init_CR90_CRA7[i]);
227 }
228 }
229 smtc_mmiowb(0x67, 0x3c2);
230
231 /* set VPR registers */
232 writel(0x0, ppar_info->m_pVPR + 0x0C);
233 writel(0x0, ppar_info->m_pVPR + 0x40);
234
235 /* set data width */
236 m_nScreenStride =
237 (ppar_info->width * sfb->fb.var.bits_per_pixel) / 64;
238 switch (sfb->fb.var.bits_per_pixel) {
239 case 8:
240 writel(0x0, ppar_info->m_pVPR + 0x0);
241 break;
242 case 16:
243 writel(0x00020000, ppar_info->m_pVPR + 0x0);
244 break;
245 case 24:
246 writel(0x00040000, ppar_info->m_pVPR + 0x0);
247 break;
248 case 32:
249 writel(0x00030000, ppar_info->m_pVPR + 0x0);
250 break;
251 }
252 writel((u32) (((m_nScreenStride + 2) << 16) | m_nScreenStride),
253 ppar_info->m_pVPR + 0x10);
254
255 }
256
257 static void sm712_setpalette(int regno, unsigned red, unsigned green,
258 unsigned blue, struct fb_info *info)
259 {
260 struct par_info *cur_par = (struct par_info *)info->par;
261
262 if (cur_par->BaseAddressInVRAM)
263 /*
264 * second display palette for dual head. Enable CRT RAM, 6-bit
265 * RAM
266 */
267 smtc_seqw(0x66, (smtc_seqr(0x66) & 0xC3) | 0x20);
268 else
269 /* primary display palette. Enable LCD RAM only, 6-bit RAM */
270 smtc_seqw(0x66, (smtc_seqr(0x66) & 0xC3) | 0x10);
271 smtc_mmiowb(regno, dac_reg);
272 smtc_mmiowb(red >> 10, dac_val);
273 smtc_mmiowb(green >> 10, dac_val);
274 smtc_mmiowb(blue >> 10, dac_val);
275 }
276
277 static void smtc_set_timing(struct smtcfb_info *sfb, struct par_info
278 *ppar_info)
279 {
280 switch (ppar_info->chipID) {
281 case 0x710:
282 case 0x712:
283 case 0x720:
284 sm712_set_timing(sfb, ppar_info);
285 break;
286 }
287 }
288
289 static struct fb_var_screeninfo smtcfb_var = {
290 .xres = 1024,
291 .yres = 600,
292 .xres_virtual = 1024,
293 .yres_virtual = 600,
294 .bits_per_pixel = 16,
295 .red = {16, 8, 0},
296 .green = {8, 8, 0},
297 .blue = {0, 8, 0},
298 .activate = FB_ACTIVATE_NOW,
299 .height = -1,
300 .width = -1,
301 .vmode = FB_VMODE_NONINTERLACED,
302 };
303
304 static struct fb_fix_screeninfo smtcfb_fix = {
305 .id = "sm712fb",
306 .type = FB_TYPE_PACKED_PIXELS,
307 .visual = FB_VISUAL_TRUECOLOR,
308 .line_length = 800 * 3,
309 .accel = FB_ACCEL_SMI_LYNX,
310 };
311
312 /* chan_to_field
313 *
314 * convert a colour value into a field position
315 *
316 * from pxafb.c
317 */
318
319 static inline unsigned int chan_to_field(unsigned int chan,
320 struct fb_bitfield *bf)
321 {
322 chan &= 0xffff;
323 chan >>= 16 - bf->length;
324 return chan << bf->offset;
325 }
326
327 static int smtcfb_blank(int blank_mode, struct fb_info *info)
328 {
329 /* clear DPMS setting */
330 switch (blank_mode) {
331 case FB_BLANK_UNBLANK:
332 /* Screen On: HSync: On, VSync : On */
333 smtc_seqw(0x01, (smtc_seqr(0x01) & (~0x20)));
334 smtc_seqw(0x6a, 0x16);
335 smtc_seqw(0x6b, 0x02);
336 smtc_seqw(0x21, (smtc_seqr(0x21) & 0x77));
337 smtc_seqw(0x22, (smtc_seqr(0x22) & (~0x30)));
338 smtc_seqw(0x23, (smtc_seqr(0x23) & (~0xc0)));
339 smtc_seqw(0x24, (smtc_seqr(0x24) | 0x01));
340 smtc_seqw(0x31, (smtc_seqr(0x31) | 0x03));
341 break;
342 case FB_BLANK_NORMAL:
343 /* Screen Off: HSync: On, VSync : On Soft blank */
344 smtc_seqw(0x01, (smtc_seqr(0x01) & (~0x20)));
345 smtc_seqw(0x6a, 0x16);
346 smtc_seqw(0x6b, 0x02);
347 smtc_seqw(0x22, (smtc_seqr(0x22) & (~0x30)));
348 smtc_seqw(0x23, (smtc_seqr(0x23) & (~0xc0)));
349 smtc_seqw(0x24, (smtc_seqr(0x24) | 0x01));
350 smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00));
351 break;
352 case FB_BLANK_VSYNC_SUSPEND:
353 /* Screen On: HSync: On, VSync : Off */
354 smtc_seqw(0x01, (smtc_seqr(0x01) | 0x20));
355 smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0)));
356 smtc_seqw(0x6a, 0x0c);
357 smtc_seqw(0x6b, 0x02);
358 smtc_seqw(0x21, (smtc_seqr(0x21) | 0x88));
359 smtc_seqw(0x22, ((smtc_seqr(0x22) & (~0x30)) | 0x20));
360 smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0x20));
361 smtc_seqw(0x24, (smtc_seqr(0x24) & (~0x01)));
362 smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00));
363 smtc_seqw(0x34, (smtc_seqr(0x34) | 0x80));
364 break;
365 case FB_BLANK_HSYNC_SUSPEND:
366 /* Screen On: HSync: Off, VSync : On */
367 smtc_seqw(0x01, (smtc_seqr(0x01) | 0x20));
368 smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0)));
369 smtc_seqw(0x6a, 0x0c);
370 smtc_seqw(0x6b, 0x02);
371 smtc_seqw(0x21, (smtc_seqr(0x21) | 0x88));
372 smtc_seqw(0x22, ((smtc_seqr(0x22) & (~0x30)) | 0x10));
373 smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0xD8));
374 smtc_seqw(0x24, (smtc_seqr(0x24) & (~0x01)));
375 smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00));
376 smtc_seqw(0x34, (smtc_seqr(0x34) | 0x80));
377 break;
378 case FB_BLANK_POWERDOWN:
379 /* Screen On: HSync: Off, VSync : Off */
380 smtc_seqw(0x01, (smtc_seqr(0x01) | 0x20));
381 smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0)));
382 smtc_seqw(0x6a, 0x0c);
383 smtc_seqw(0x6b, 0x02);
384 smtc_seqw(0x21, (smtc_seqr(0x21) | 0x88));
385 smtc_seqw(0x22, ((smtc_seqr(0x22) & (~0x30)) | 0x30));
386 smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0xD8));
387 smtc_seqw(0x24, (smtc_seqr(0x24) & (~0x01)));
388 smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00));
389 smtc_seqw(0x34, (smtc_seqr(0x34) | 0x80));
390 break;
391 default:
392 return -EINVAL;
393 }
394
395 return 0;
396 }
397
398 static int smtc_setcolreg(unsigned regno, unsigned red, unsigned green,
399 unsigned blue, unsigned trans, struct fb_info *info)
400 {
401 struct smtcfb_info *sfb = (struct smtcfb_info *)info;
402 u32 val;
403
404 if (regno > 255)
405 return 1;
406
407 switch (sfb->fb.fix.visual) {
408 case FB_VISUAL_DIRECTCOLOR:
409 case FB_VISUAL_TRUECOLOR:
410 /*
411 * 16/32 bit true-colour, use pseuo-palette for 16 base color
412 */
413 if (regno < 16) {
414 if (sfb->fb.var.bits_per_pixel == 16) {
415 u32 *pal = sfb->fb.pseudo_palette;
416 val = chan_to_field(red, &sfb->fb.var.red);
417 val |= chan_to_field(green, \
418 &sfb->fb.var.green);
419 val |= chan_to_field(blue, &sfb->fb.var.blue);
420 #ifdef __BIG_ENDIAN
421 pal[regno] =
422 ((red & 0xf800) >> 8) |
423 ((green & 0xe000) >> 13) |
424 ((green & 0x1c00) << 3) |
425 ((blue & 0xf800) >> 3);
426 #else
427 pal[regno] = val;
428 #endif
429 } else {
430 u32 *pal = sfb->fb.pseudo_palette;
431 val = chan_to_field(red, &sfb->fb.var.red);
432 val |= chan_to_field(green, \
433 &sfb->fb.var.green);
434 val |= chan_to_field(blue, &sfb->fb.var.blue);
435 #ifdef __BIG_ENDIAN
436 val =
437 (val & 0xff00ff00 >> 8) |
438 (val & 0x00ff00ff << 8);
439 #endif
440 pal[regno] = val;
441 }
442 }
443 break;
444
445 case FB_VISUAL_PSEUDOCOLOR:
446 /* color depth 8 bit */
447 sm712_setpalette(regno, red, green, blue, info);
448 break;
449
450 default:
451 return 1; /* unknown type */
452 }
453
454 return 0;
455
456 }
457
458 #ifdef __BIG_ENDIAN
459 static ssize_t smtcfb_read(struct fb_info *info, char __user * buf, size_t
460 count, loff_t *ppos)
461 {
462 unsigned long p = *ppos;
463
464 u32 *buffer, *dst;
465 u32 __iomem *src;
466 int c, i, cnt = 0, err = 0;
467 unsigned long total_size;
468
469 if (!info || !info->screen_base)
470 return -ENODEV;
471
472 if (info->state != FBINFO_STATE_RUNNING)
473 return -EPERM;
474
475 total_size = info->screen_size;
476
477 if (total_size == 0)
478 total_size = info->fix.smem_len;
479
480 if (p >= total_size)
481 return 0;
482
483 if (count >= total_size)
484 count = total_size;
485
486 if (count + p > total_size)
487 count = total_size - p;
488
489 buffer = kmalloc((count > PAGE_SIZE) ? PAGE_SIZE : count, GFP_KERNEL);
490 if (!buffer)
491 return -ENOMEM;
492
493 src = (u32 __iomem *) (info->screen_base + p);
494
495 if (info->fbops->fb_sync)
496 info->fbops->fb_sync(info);
497
498 while (count) {
499 c = (count > PAGE_SIZE) ? PAGE_SIZE : count;
500 dst = buffer;
501 for (i = c >> 2; i--;) {
502 *dst = fb_readl(src++);
503 *dst =
504 (*dst & 0xff00ff00 >> 8) |
505 (*dst & 0x00ff00ff << 8);
506 dst++;
507 }
508 if (c & 3) {
509 u8 *dst8 = (u8 *) dst;
510 u8 __iomem *src8 = (u8 __iomem *) src;
511
512 for (i = c & 3; i--;) {
513 if (i & 1) {
514 *dst8++ = fb_readb(++src8);
515 } else {
516 *dst8++ = fb_readb(--src8);
517 src8 += 2;
518 }
519 }
520 src = (u32 __iomem *) src8;
521 }
522
523 if (copy_to_user(buf, buffer, c)) {
524 err = -EFAULT;
525 break;
526 }
527 *ppos += c;
528 buf += c;
529 cnt += c;
530 count -= c;
531 }
532
533 kfree(buffer);
534
535 return (err) ? err : cnt;
536 }
537
538 static ssize_t
539 smtcfb_write(struct fb_info *info, const char __user *buf, size_t count,
540 loff_t *ppos)
541 {
542 unsigned long p = *ppos;
543
544 u32 *buffer, *src;
545 u32 __iomem *dst;
546 int c, i, cnt = 0, err = 0;
547 unsigned long total_size;
548
549 if (!info || !info->screen_base)
550 return -ENODEV;
551
552 if (info->state != FBINFO_STATE_RUNNING)
553 return -EPERM;
554
555 total_size = info->screen_size;
556
557 if (total_size == 0)
558 total_size = info->fix.smem_len;
559
560 if (p > total_size)
561 return -EFBIG;
562
563 if (count > total_size) {
564 err = -EFBIG;
565 count = total_size;
566 }
567
568 if (count + p > total_size) {
569 if (!err)
570 err = -ENOSPC;
571
572 count = total_size - p;
573 }
574
575 buffer = kmalloc((count > PAGE_SIZE) ? PAGE_SIZE : count, GFP_KERNEL);
576 if (!buffer)
577 return -ENOMEM;
578
579 dst = (u32 __iomem *) (info->screen_base + p);
580
581 if (info->fbops->fb_sync)
582 info->fbops->fb_sync(info);
583
584 while (count) {
585 c = (count > PAGE_SIZE) ? PAGE_SIZE : count;
586 src = buffer;
587
588 if (copy_from_user(src, buf, c)) {
589 err = -EFAULT;
590 break;
591 }
592
593 for (i = c >> 2; i--;) {
594 fb_writel((*src & 0xff00ff00 >> 8) |
595 (*src & 0x00ff00ff << 8), dst++);
596 src++;
597 }
598 if (c & 3) {
599 u8 *src8 = (u8 *) src;
600 u8 __iomem *dst8 = (u8 __iomem *) dst;
601
602 for (i = c & 3; i--;) {
603 if (i & 1) {
604 fb_writeb(*src8++, ++dst8);
605 } else {
606 fb_writeb(*src8++, --dst8);
607 dst8 += 2;
608 }
609 }
610 dst = (u32 __iomem *) dst8;
611 }
612
613 *ppos += c;
614 buf += c;
615 cnt += c;
616 count -= c;
617 }
618
619 kfree(buffer);
620
621 return (cnt) ? cnt : err;
622 }
623 #endif /* ! __BIG_ENDIAN */
624
625 #include "smtc2d.c"
626
627 void smtcfb_copyarea(struct fb_info *info, const struct fb_copyarea *area)
628 {
629 struct par_info *p = (struct par_info *)info->par;
630
631 if (smtc_2Dacceleration) {
632 if (!area->width || !area->height)
633 return;
634
635 deCopy(p->BaseAddressInVRAM, 0, info->var.bits_per_pixel,
636 area->dx, area->dy, area->width, area->height,
637 p->BaseAddressInVRAM, 0, area->sx, area->sy, 0, 0xC);
638
639 } else
640 cfb_copyarea(info, area);
641 }
642
643 void smtcfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
644 {
645 struct par_info *p = (struct par_info *)info->par;
646
647 if (smtc_2Dacceleration) {
648 if (!rect->width || !rect->height)
649 return;
650 if (info->var.bits_per_pixel >= 24)
651 deFillRect(p->BaseAddressInVRAM, 0, rect->dx * 3,
652 rect->dy * 3, rect->width * 3, rect->height,
653 rect->color);
654 else
655 deFillRect(p->BaseAddressInVRAM, 0, rect->dx, rect->dy,
656 rect->width, rect->height, rect->color);
657 } else
658 cfb_fillrect(info, rect);
659 }
660
661 void smtcfb_imageblit(struct fb_info *info, const struct fb_image *image)
662 {
663 struct par_info *p = (struct par_info *)info->par;
664 u32 bg_col = 0, fg_col = 0;
665
666 if ((smtc_2Dacceleration) && (image->depth == 1)) {
667 if (smtc_de_busy)
668 deWaitForNotBusy();
669
670 switch (info->var.bits_per_pixel) {
671 case 8:
672 bg_col = image->bg_color;
673 fg_col = image->fg_color;
674 break;
675 case 16:
676 bg_col =
677 ((u32 *) (info->pseudo_palette))[image->bg_color];
678 fg_col =
679 ((u32 *) (info->pseudo_palette))[image->fg_color];
680 break;
681 case 32:
682 bg_col =
683 ((u32 *) (info->pseudo_palette))[image->bg_color];
684 fg_col =
685 ((u32 *) (info->pseudo_palette))[image->fg_color];
686 break;
687 }
688
689 deSystemMem2VideoMemMonoBlt(
690 image->data,
691 image->width / 8,
692 0,
693 p->BaseAddressInVRAM,
694 0,
695 0,
696 image->dx, image->dy,
697 image->width, image->height,
698 fg_col, bg_col,
699 0x0C);
700
701 } else
702 cfb_imageblit(info, image);
703 }
704
705 static struct fb_ops smtcfb_ops = {
706 .owner = THIS_MODULE,
707 .fb_setcolreg = smtc_setcolreg,
708 .fb_blank = smtcfb_blank,
709 .fb_fillrect = smtcfb_fillrect,
710 .fb_imageblit = smtcfb_imageblit,
711 .fb_copyarea = smtcfb_copyarea,
712 #ifdef __BIG_ENDIAN
713 .fb_read = smtcfb_read,
714 .fb_write = smtcfb_write,
715 #endif
716
717 };
718
719 void smtcfb_setmode(struct smtcfb_info *sfb)
720 {
721 switch (sfb->fb.var.bits_per_pixel) {
722 case 32:
723 sfb->fb.fix.visual = FB_VISUAL_TRUECOLOR;
724 sfb->fb.fix.line_length = sfb->fb.var.xres * 4;
725 sfb->fb.var.red.length = 8;
726 sfb->fb.var.green.length = 8;
727 sfb->fb.var.blue.length = 8;
728 sfb->fb.var.red.offset = 16;
729 sfb->fb.var.green.offset = 8;
730 sfb->fb.var.blue.offset = 0;
731
732 break;
733 case 8:
734 sfb->fb.fix.visual = FB_VISUAL_PSEUDOCOLOR;
735 sfb->fb.fix.line_length = sfb->fb.var.xres;
736 sfb->fb.var.red.offset = 5;
737 sfb->fb.var.red.length = 3;
738 sfb->fb.var.green.offset = 2;
739 sfb->fb.var.green.length = 3;
740 sfb->fb.var.blue.offset = 0;
741 sfb->fb.var.blue.length = 2;
742 break;
743 case 24:
744 sfb->fb.fix.visual = FB_VISUAL_TRUECOLOR;
745 sfb->fb.fix.line_length = sfb->fb.var.xres * 3;
746 sfb->fb.var.red.length = 8;
747 sfb->fb.var.green.length = 8;
748 sfb->fb.var.blue.length = 8;
749
750 sfb->fb.var.red.offset = 16;
751 sfb->fb.var.green.offset = 8;
752 sfb->fb.var.blue.offset = 0;
753
754 break;
755 case 16:
756 default:
757 sfb->fb.fix.visual = FB_VISUAL_TRUECOLOR;
758 sfb->fb.fix.line_length = sfb->fb.var.xres * 2;
759
760 sfb->fb.var.red.length = 5;
761 sfb->fb.var.green.length = 6;
762 sfb->fb.var.blue.length = 5;
763
764 sfb->fb.var.red.offset = 11;
765 sfb->fb.var.green.offset = 5;
766 sfb->fb.var.blue.offset = 0;
767
768 break;
769 }
770
771 hw.width = sfb->fb.var.xres;
772 hw.height = sfb->fb.var.yres;
773 hw.hz = 60;
774 smtc_set_timing(sfb, &hw);
775 if (smtc_2Dacceleration) {
776 printk("2D acceleration enabled!\n");
777 /* Init smtc drawing engine */
778 deInit(sfb->fb.var.xres, sfb->fb.var.yres,
779 sfb->fb.var.bits_per_pixel);
780 }
781 }
782
783 /*
784 * Alloc struct smtcfb_info and assign the default value
785 */
786 static struct smtcfb_info *smtc_alloc_fb_info(struct pci_dev *dev,
787 char *name)
788 {
789 struct smtcfb_info *sfb;
790
791 sfb = kmalloc(sizeof(struct smtcfb_info), GFP_KERNEL);
792
793 if (!sfb)
794 return NULL;
795
796 memset(sfb, 0, sizeof(struct smtcfb_info));
797
798 sfb->currcon = -1;
799 sfb->dev = dev;
800
801 /*** Init sfb->fb with default value ***/
802 sfb->fb.flags = FBINFO_FLAG_DEFAULT;
803 sfb->fb.fbops = &smtcfb_ops;
804 sfb->fb.var = smtcfb_var;
805 sfb->fb.fix = smtcfb_fix;
806
807 strcpy(sfb->fb.fix.id, name);
808
809 sfb->fb.fix.type = FB_TYPE_PACKED_PIXELS;
810 sfb->fb.fix.type_aux = 0;
811 sfb->fb.fix.xpanstep = 0;
812 sfb->fb.fix.ypanstep = 0;
813 sfb->fb.fix.ywrapstep = 0;
814 sfb->fb.fix.accel = FB_ACCEL_SMI_LYNX;
815
816 sfb->fb.var.nonstd = 0;
817 sfb->fb.var.activate = FB_ACTIVATE_NOW;
818 sfb->fb.var.height = -1;
819 sfb->fb.var.width = -1;
820 /* text mode acceleration */
821 sfb->fb.var.accel_flags = FB_ACCELF_TEXT;
822 sfb->fb.var.vmode = FB_VMODE_NONINTERLACED;
823 sfb->fb.par = &hw;
824 sfb->fb.pseudo_palette = colreg;
825
826 return sfb;
827 }
828
829 /*
830 * Unmap in the memory mapped IO registers
831 */
832
833 static void smtc_unmap_mmio(struct smtcfb_info *sfb)
834 {
835 if (sfb && smtc_RegBaseAddress)
836 smtc_RegBaseAddress = NULL;
837 }
838
839 /*
840 * Map in the screen memory
841 */
842
843 static int smtc_map_smem(struct smtcfb_info *sfb,
844 struct pci_dev *dev, u_long smem_len)
845 {
846 if (sfb->fb.var.bits_per_pixel == 32) {
847 #ifdef __BIG_ENDIAN
848 sfb->fb.fix.smem_start = pci_resource_start(dev, 0)
849 + 0x800000;
850 #else
851 sfb->fb.fix.smem_start = pci_resource_start(dev, 0);
852 #endif
853 } else {
854 sfb->fb.fix.smem_start = pci_resource_start(dev, 0);
855 }
856
857 sfb->fb.fix.smem_len = smem_len;
858
859 sfb->fb.screen_base = smtc_VRAMBaseAddress;
860
861 if (!sfb->fb.screen_base) {
862 printk(KERN_INFO "%s: unable to map screen memory\n",
863 sfb->fb.fix.id);
864 return -ENOMEM;
865 }
866
867 return 0;
868 }
869
870 /*
871 * Unmap in the screen memory
872 *
873 */
874 static void smtc_unmap_smem(struct smtcfb_info *sfb)
875 {
876 if (sfb && sfb->fb.screen_base) {
877 iounmap(sfb->fb.screen_base);
878 sfb->fb.screen_base = NULL;
879 }
880 }
881
882 /*
883 * We need to wake up the LynxEM+, and make sure its in linear memory mode.
884 */
885 static inline void sm7xx_init_hw(void)
886 {
887 outb_p(0x18, 0x3c4);
888 outb_p(0x11, 0x3c5);
889 }
890
891 static void smtc_free_fb_info(struct smtcfb_info *sfb)
892 {
893 if (sfb) {
894 fb_alloc_cmap(&sfb->fb.cmap, 0, 0);
895 kfree(sfb);
896 }
897 }
898
899 /*
900 * sm712vga_setup - process command line options, get vga parameter
901 * @options: string of options
902 * Returns zero.
903 *
904 */
905 static int __init __maybe_unused sm712vga_setup(char *options)
906 {
907 int index;
908
909 if (!options || !*options) {
910 smdbg("\n No vga parameter\n");
911 return -EINVAL;
912 }
913
914 smtc_screen_info.lfb_width = 0;
915 smtc_screen_info.lfb_height = 0;
916 smtc_screen_info.lfb_depth = 0;
917
918 smdbg("\nsm712vga_setup = %s\n", options);
919
920 for (index = 0;
921 index < (sizeof(vesa_mode) / sizeof(struct vesa_mode_table));
922 index++) {
923 if (strstr(options, vesa_mode[index].mode_index)) {
924 smtc_screen_info.lfb_width = vesa_mode[index].lfb_width;
925 smtc_screen_info.lfb_height =
926 vesa_mode[index].lfb_height;
927 smtc_screen_info.lfb_depth = vesa_mode[index].lfb_depth;
928 return 0;
929 }
930 }
931
932 return -1;
933 }
934 __setup("vga=", sm712vga_setup);
935
936 /* Jason (08/13/2009)
937 * Original init function changed to probe method to be used by pci_drv
938 * process used to detect chips replaced with kernel process in pci_drv
939 */
940 static int __init smtcfb_pci_probe(struct pci_dev *pdev,
941 const struct pci_device_id *ent)
942 {
943 struct smtcfb_info *sfb;
944 u_long smem_size = 0x00800000; /* default 8MB */
945 char name[16];
946 int err;
947 unsigned long pFramebufferPhysical;
948
949 printk(KERN_INFO
950 "Silicon Motion display driver " SMTC_LINUX_FB_VERSION "\n");
951
952 err = pci_enable_device(pdev); /* enable SMTC chip */
953
954 if (err)
955 return err;
956 err = -ENOMEM;
957
958 hw.chipID = ent->device;
959 sprintf(name, "sm%Xfb", hw.chipID);
960
961 sfb = smtc_alloc_fb_info(pdev, name);
962
963 if (!sfb)
964 goto failed;
965 /* Jason (08/13/2009)
966 * Store fb_info to be further used when suspending and resuming
967 */
968 pci_set_drvdata(pdev, sfb);
969
970 sm7xx_init_hw();
971
972 /*get mode parameter from smtc_screen_info */
973 if (smtc_screen_info.lfb_width != 0) {
974 sfb->fb.var.xres = smtc_screen_info.lfb_width;
975 sfb->fb.var.yres = smtc_screen_info.lfb_height;
976 sfb->fb.var.bits_per_pixel = smtc_screen_info.lfb_depth;
977 } else {
978 /* default resolution 1024x600 16bit mode */
979 sfb->fb.var.xres = SCREEN_X_RES;
980 sfb->fb.var.yres = SCREEN_Y_RES;
981 sfb->fb.var.bits_per_pixel = SCREEN_BPP;
982 }
983
984 #ifdef __BIG_ENDIAN
985 if (sfb->fb.var.bits_per_pixel == 24)
986 sfb->fb.var.bits_per_pixel = (smtc_screen_info.lfb_depth = 32);
987 #endif
988 /* Map address and memory detection */
989 pFramebufferPhysical = pci_resource_start(pdev, 0);
990 pci_read_config_byte(pdev, PCI_REVISION_ID, &hw.chipRevID);
991
992 switch (hw.chipID) {
993 case 0x710:
994 case 0x712:
995 sfb->fb.fix.mmio_start = pFramebufferPhysical + 0x00400000;
996 sfb->fb.fix.mmio_len = 0x00400000;
997 smem_size = SM712_VIDEOMEMORYSIZE;
998 #ifdef __BIG_ENDIAN
999 hw.m_pLFB = (smtc_VRAMBaseAddress =
1000 ioremap(pFramebufferPhysical, 0x00c00000));
1001 #else
1002 hw.m_pLFB = (smtc_VRAMBaseAddress =
1003 ioremap(pFramebufferPhysical, 0x00800000));
1004 #endif
1005 hw.m_pMMIO = (smtc_RegBaseAddress =
1006 smtc_VRAMBaseAddress + 0x00700000);
1007 smtc_2DBaseAddress = (hw.m_pDPR =
1008 smtc_VRAMBaseAddress + 0x00408000);
1009 smtc_2Ddataport = smtc_VRAMBaseAddress + DE_DATA_PORT_712;
1010 hw.m_pVPR = hw.m_pLFB + 0x0040c000;
1011 #ifdef __BIG_ENDIAN
1012 if (sfb->fb.var.bits_per_pixel == 32) {
1013 smtc_VRAMBaseAddress += 0x800000;
1014 hw.m_pLFB += 0x800000;
1015 printk(KERN_INFO
1016 "\nsmtc_VRAMBaseAddress=%p hw.m_pLFB=%p\n",
1017 smtc_VRAMBaseAddress, hw.m_pLFB);
1018 }
1019 #endif
1020 if (!smtc_RegBaseAddress) {
1021 printk(KERN_INFO
1022 "%s: unable to map memory mapped IO\n",
1023 sfb->fb.fix.id);
1024 return -ENOMEM;
1025 }
1026
1027 /* set MCLK = 14.31818 * (0x16 / 0x2) */
1028 smtc_seqw(0x6a, 0x16);
1029 smtc_seqw(0x6b, 0x02);
1030 smtc_seqw(0x62, 0x3e);
1031 /* enable PCI burst */
1032 smtc_seqw(0x17, 0x20);
1033 /* enable word swap */
1034 #ifdef __BIG_ENDIAN
1035 if (sfb->fb.var.bits_per_pixel == 32)
1036 smtc_seqw(0x17, 0x30);
1037 #endif
1038 #ifdef CONFIG_FB_SM7XX_ACCEL
1039 smtc_2Dacceleration = 1;
1040 #endif
1041 break;
1042 case 0x720:
1043 sfb->fb.fix.mmio_start = pFramebufferPhysical;
1044 sfb->fb.fix.mmio_len = 0x00200000;
1045 smem_size = SM722_VIDEOMEMORYSIZE;
1046 smtc_2DBaseAddress = (hw.m_pDPR =
1047 ioremap(pFramebufferPhysical, 0x00a00000));
1048 hw.m_pLFB = (smtc_VRAMBaseAddress =
1049 smtc_2DBaseAddress + 0x00200000);
1050 hw.m_pMMIO = (smtc_RegBaseAddress =
1051 smtc_2DBaseAddress + 0x000c0000);
1052 smtc_2Ddataport = smtc_2DBaseAddress + DE_DATA_PORT_722;
1053 hw.m_pVPR = smtc_2DBaseAddress + 0x800;
1054
1055 smtc_seqw(0x62, 0xff);
1056 smtc_seqw(0x6a, 0x0d);
1057 smtc_seqw(0x6b, 0x02);
1058 smtc_2Dacceleration = 0;
1059 break;
1060 default:
1061 printk(KERN_INFO
1062 "No valid Silicon Motion display chip was detected!\n");
1063
1064 smtc_free_fb_info(sfb);
1065 return err;
1066 }
1067
1068 /* can support 32 bpp */
1069 if (15 == sfb->fb.var.bits_per_pixel)
1070 sfb->fb.var.bits_per_pixel = 16;
1071
1072 sfb->fb.var.xres_virtual = sfb->fb.var.xres;
1073 sfb->fb.var.yres_virtual = sfb->fb.var.yres;
1074 err = smtc_map_smem(sfb, pdev, smem_size);
1075 if (err)
1076 goto failed;
1077
1078 smtcfb_setmode(sfb);
1079 /* Primary display starting from 0 postion */
1080 hw.BaseAddressInVRAM = 0;
1081 sfb->fb.par = &hw;
1082
1083 err = register_framebuffer(&sfb->fb);
1084 if (err < 0)
1085 goto failed;
1086
1087 printk(KERN_INFO "Silicon Motion SM%X Rev%X primary display mode"
1088 "%dx%d-%d Init Complete.\n", hw.chipID, hw.chipRevID,
1089 sfb->fb.var.xres, sfb->fb.var.yres,
1090 sfb->fb.var.bits_per_pixel);
1091
1092 return 0;
1093
1094 failed:
1095 printk(KERN_INFO "Silicon Motion, Inc. primary display init fail\n");
1096
1097 smtc_unmap_smem(sfb);
1098 smtc_unmap_mmio(sfb);
1099 smtc_free_fb_info(sfb);
1100
1101 return err;
1102 }
1103
1104
1105 /* Jason (08/11/2009) PCI_DRV wrapper essential structs */
1106 static struct pci_device_id smtcfb_pci_table[] = {
1107 {0x126f, 0x710, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1108 {0x126f, 0x712, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1109 {0x126f, 0x720, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1110 {0,}
1111 };
1112
1113
1114 /* Jason (08/14/2009)
1115 * do some clean up when the driver module is removed
1116 */
1117 static void __devexit smtcfb_pci_remove(struct pci_dev *pdev)
1118 {
1119 struct smtcfb_info *sfb;
1120
1121 sfb = pci_get_drvdata(pdev);
1122 pci_set_drvdata(pdev, NULL);
1123 smtc_unmap_smem(sfb);
1124 smtc_unmap_mmio(sfb);
1125 unregister_framebuffer(&sfb->fb);
1126 smtc_free_fb_info(sfb);
1127 }
1128
1129 /* Jason (08/14/2009)
1130 * suspend function, called when the suspend event is triggered
1131 */
1132 static int __maybe_unused smtcfb_suspend(struct pci_dev *pdev, pm_message_t msg)
1133 {
1134 struct smtcfb_info *sfb;
1135 int retv;
1136
1137 sfb = pci_get_drvdata(pdev);
1138
1139 /* set the hw in sleep mode use externel clock and self memory refresh
1140 * so that we can turn off internal PLLs later on
1141 */
1142 smtc_seqw(0x20, (smtc_seqr(0x20) | 0xc0));
1143 smtc_seqw(0x69, (smtc_seqr(0x69) & 0xf7));
1144
1145 switch (msg.event) {
1146 case PM_EVENT_FREEZE:
1147 case PM_EVENT_PRETHAW:
1148 pdev->dev.power.power_state = msg;
1149 return 0;
1150 }
1151
1152 /* when doing suspend, call fb apis and pci apis */
1153 if (msg.event == PM_EVENT_SUSPEND) {
1154 acquire_console_sem();
1155 fb_set_suspend(&sfb->fb, 1);
1156 release_console_sem();
1157 retv = pci_save_state(pdev);
1158 pci_disable_device(pdev);
1159 retv = pci_choose_state(pdev, msg);
1160 retv = pci_set_power_state(pdev, retv);
1161 }
1162
1163 pdev->dev.power.power_state = msg;
1164
1165 /* additionaly turn off all function blocks including internal PLLs */
1166 smtc_seqw(0x21, 0xff);
1167
1168 return 0;
1169 }
1170
1171 static int __maybe_unused smtcfb_resume(struct pci_dev *pdev)
1172 {
1173 struct smtcfb_info *sfb;
1174 int retv;
1175
1176 sfb = pci_get_drvdata(pdev);
1177
1178 /* when resuming, restore pci data and fb cursor */
1179 if (pdev->dev.power.power_state.event != PM_EVENT_FREEZE) {
1180 retv = pci_set_power_state(pdev, PCI_D0);
1181 retv = pci_restore_state(pdev);
1182 if (pci_enable_device(pdev))
1183 return -1;
1184 pci_set_master(pdev);
1185 }
1186
1187 /* reinit hardware */
1188 sm7xx_init_hw();
1189 switch (hw.chipID) {
1190 case 0x710:
1191 case 0x712:
1192 /* set MCLK = 14.31818 * (0x16 / 0x2) */
1193 smtc_seqw(0x6a, 0x16);
1194 smtc_seqw(0x6b, 0x02);
1195 smtc_seqw(0x62, 0x3e);
1196 /* enable PCI burst */
1197 smtc_seqw(0x17, 0x20);
1198 #ifdef __BIG_ENDIAN
1199 if (sfb->fb.var.bits_per_pixel == 32)
1200 smtc_seqw(0x17, 0x30);
1201 #endif
1202 break;
1203 case 0x720:
1204 smtc_seqw(0x62, 0xff);
1205 smtc_seqw(0x6a, 0x0d);
1206 smtc_seqw(0x6b, 0x02);
1207 break;
1208 }
1209
1210 smtc_seqw(0x34, (smtc_seqr(0x34) | 0xc0));
1211 smtc_seqw(0x33, ((smtc_seqr(0x33) | 0x08) & 0xfb));
1212
1213 smtcfb_setmode(sfb);
1214
1215 acquire_console_sem();
1216 fb_set_suspend(&sfb->fb, 0);
1217 release_console_sem();
1218
1219 return 0;
1220 }
1221
1222 /* Jason (08/13/2009)
1223 * pci_driver struct used to wrap the original driver
1224 * so that it can be registered into the kernel and
1225 * the proper method would be called when suspending and resuming
1226 */
1227 static struct pci_driver smtcfb_driver = {
1228 .name = "smtcfb",
1229 .id_table = smtcfb_pci_table,
1230 .probe = smtcfb_pci_probe,
1231 .remove = __devexit_p(smtcfb_pci_remove),
1232 #ifdef CONFIG_PM
1233 .suspend = smtcfb_suspend,
1234 .resume = smtcfb_resume,
1235 #endif
1236 };
1237
1238 static int __init smtcfb_init(void)
1239 {
1240 return pci_register_driver(&smtcfb_driver);
1241 }
1242
1243 static void __exit smtcfb_exit(void)
1244 {
1245 pci_unregister_driver(&smtcfb_driver);
1246 }
1247
1248 module_init(smtcfb_init);
1249 module_exit(smtcfb_exit);
1250
1251 MODULE_AUTHOR("Siliconmotion ");
1252 MODULE_DESCRIPTION("Framebuffer driver for SMI Graphic Cards");
1253 MODULE_LICENSE("GPL");
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