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