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1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 *
4 * Hardware accelerated Matrox Millennium I, II, Mystique, G100, G200, G400 and G450
5 *
6 * (c) 1998-2002 Petr Vandrovec <[email protected]>
7 *
8 */
9#ifndef __MATROXFB_H__
10#define __MATROXFB_H__
11
12/* general, but fairly heavy, debugging */
13#undef MATROXFB_DEBUG
14
15/* heavy debugging: */
16/* -- logs putc[s], so every time a char is displayed, it's logged */
17#undef MATROXFB_DEBUG_HEAVY
18
19/* This one _could_ cause infinite loops */
20/* It _does_ cause lots and lots of messages during idle loops */
21#undef MATROXFB_DEBUG_LOOP
22
23/* Debug register calls, too? */
24#undef MATROXFB_DEBUG_REG
25
26/* Guard accelerator accesses with spin_lock_irqsave... */
27#undef MATROXFB_USE_SPINLOCKS
28
29#include <linux/module.h>
30#include <linux/kernel.h>
31#include <linux/errno.h>
32#include <linux/string.h>
33#include <linux/mm.h>
34#include <linux/slab.h>
35#include <linux/delay.h>
36#include <linux/fb.h>
37#include <linux/console.h>
38#include <linux/selection.h>
39#include <linux/ioport.h>
40#include <linux/init.h>
41#include <linux/timer.h>
42#include <linux/pci.h>
43#include <linux/spinlock.h>
44#include <linux/kd.h>
45
46#include <asm/io.h>
47#include <linux/unaligned.h>
48
49#if defined(CONFIG_PPC_PMAC)
50#include "../macmodes.h"
51#endif
52
53#ifdef MATROXFB_DEBUG
54
55#define DEBUG
56#define DBG(x) printk(KERN_DEBUG "matroxfb: %s\n", (x));
57
58#ifdef MATROXFB_DEBUG_HEAVY
59#define DBG_HEAVY(x) DBG(x)
60#else /* MATROXFB_DEBUG_HEAVY */
61#define DBG_HEAVY(x) /* DBG_HEAVY */
62#endif /* MATROXFB_DEBUG_HEAVY */
63
64#ifdef MATROXFB_DEBUG_LOOP
65#define DBG_LOOP(x) DBG(x)
66#else /* MATROXFB_DEBUG_LOOP */
67#define DBG_LOOP(x) /* DBG_LOOP */
68#endif /* MATROXFB_DEBUG_LOOP */
69
70#ifdef MATROXFB_DEBUG_REG
71#define DBG_REG(x) DBG(x)
72#else /* MATROXFB_DEBUG_REG */
73#define DBG_REG(x) /* DBG_REG */
74#endif /* MATROXFB_DEBUG_REG */
75
76#else /* MATROXFB_DEBUG */
77
78#define DBG(x) /* DBG */
79#define DBG_HEAVY(x) /* DBG_HEAVY */
80#define DBG_REG(x) /* DBG_REG */
81#define DBG_LOOP(x) /* DBG_LOOP */
82
83#endif /* MATROXFB_DEBUG */
84
85#ifdef DEBUG
86#define dprintk(X...) printk(X)
87#else
88#define dprintk(X...) no_printk(X)
89#endif
90
91#ifndef PCI_SS_VENDOR_ID_SIEMENS_NIXDORF
92#define PCI_SS_VENDOR_ID_SIEMENS_NIXDORF 0x110A
93#endif
94#ifndef PCI_SS_VENDOR_ID_MATROX
95#define PCI_SS_VENDOR_ID_MATROX PCI_VENDOR_ID_MATROX
96#endif
97
98#ifndef PCI_SS_ID_MATROX_PRODUCTIVA_G100_AGP
99#define PCI_SS_ID_MATROX_GENERIC 0xFF00
100#define PCI_SS_ID_MATROX_PRODUCTIVA_G100_AGP 0xFF01
101#define PCI_SS_ID_MATROX_MYSTIQUE_G200_AGP 0xFF02
102#define PCI_SS_ID_MATROX_MILLENIUM_G200_AGP 0xFF03
103#define PCI_SS_ID_MATROX_MARVEL_G200_AGP 0xFF04
104#define PCI_SS_ID_MATROX_MGA_G100_PCI 0xFF05
105#define PCI_SS_ID_MATROX_MGA_G100_AGP 0x1001
106#define PCI_SS_ID_MATROX_MILLENNIUM_G400_MAX_AGP 0x2179
107#define PCI_SS_ID_SIEMENS_MGA_G100_AGP 0x001E /* 30 */
108#define PCI_SS_ID_SIEMENS_MGA_G200_AGP 0x0032 /* 50 */
109#endif
110
111#define MX_VISUAL_TRUECOLOR FB_VISUAL_DIRECTCOLOR
112#define MX_VISUAL_DIRECTCOLOR FB_VISUAL_TRUECOLOR
113#define MX_VISUAL_PSEUDOCOLOR FB_VISUAL_PSEUDOCOLOR
114
115#define CNVT_TOHW(val,width) ((((val)<<(width))+0x7FFF-(val))>>16)
116
117/* G-series and Mystique have (almost) same DAC */
118#undef NEED_DAC1064
119#if defined(CONFIG_FB_MATROX_MYSTIQUE) || defined(CONFIG_FB_MATROX_G)
120#define NEED_DAC1064 1
121#endif
122
123typedef struct {
124 void __iomem* vaddr;
125} vaddr_t;
126
127static inline unsigned int mga_readb(vaddr_t va, unsigned int offs) {
128 return readb(va.vaddr + offs);
129}
130
131static inline void mga_writeb(vaddr_t va, unsigned int offs, u_int8_t value) {
132 writeb(value, va.vaddr + offs);
133}
134
135static inline void mga_writew(vaddr_t va, unsigned int offs, u_int16_t value) {
136 writew(value, va.vaddr + offs);
137}
138
139static inline u_int32_t mga_readl(vaddr_t va, unsigned int offs) {
140 return readl(va.vaddr + offs);
141}
142
143static inline void mga_writel(vaddr_t va, unsigned int offs, u_int32_t value) {
144 writel(value, va.vaddr + offs);
145}
146
147static inline void mga_memcpy_toio(vaddr_t va, const void* src, int len) {
148#if defined(__alpha__) || defined(__i386__) || defined(__x86_64__)
149 /*
150 * iowrite32_rep works for us if:
151 * (1) Copies data as 32bit quantities, not byte after byte,
152 * (2) Performs LE ordered stores, and
153 * (3) It copes with unaligned source (destination is guaranteed to be page
154 * aligned and length is guaranteed to be multiple of 4).
155 */
156 iowrite32_rep(va.vaddr, src, len >> 2);
157#else
158 u_int32_t __iomem* addr = va.vaddr;
159
160 if ((unsigned long)src & 3) {
161 while (len >= 4) {
162 fb_writel(get_unaligned((u32 *)src), addr);
163 addr++;
164 len -= 4;
165 src += 4;
166 }
167 } else {
168 while (len >= 4) {
169 fb_writel(*(u32 *)src, addr);
170 addr++;
171 len -= 4;
172 src += 4;
173 }
174 }
175#endif
176}
177
178static inline void vaddr_add(vaddr_t* va, unsigned long offs) {
179 va->vaddr += offs;
180}
181
182static inline void __iomem* vaddr_va(vaddr_t va) {
183 return va.vaddr;
184}
185
186struct my_timming {
187 unsigned int pixclock;
188 int mnp;
189 unsigned int crtc;
190 unsigned int HDisplay;
191 unsigned int HSyncStart;
192 unsigned int HSyncEnd;
193 unsigned int HTotal;
194 unsigned int VDisplay;
195 unsigned int VSyncStart;
196 unsigned int VSyncEnd;
197 unsigned int VTotal;
198 unsigned int sync;
199 int dblscan;
200 int interlaced;
201 unsigned int delay; /* CRTC delay */
202};
203
204enum { M_SYSTEM_PLL, M_PIXEL_PLL_A, M_PIXEL_PLL_B, M_PIXEL_PLL_C, M_VIDEO_PLL };
205
206struct matrox_pll_cache {
207 unsigned int valid;
208 struct {
209 unsigned int mnp_key;
210 unsigned int mnp_value;
211 } data[4];
212};
213
214struct matrox_pll_limits {
215 unsigned int vcomin;
216 unsigned int vcomax;
217};
218
219struct matrox_pll_features {
220 unsigned int vco_freq_min;
221 unsigned int ref_freq;
222 unsigned int feed_div_min;
223 unsigned int feed_div_max;
224 unsigned int in_div_min;
225 unsigned int in_div_max;
226 unsigned int post_shift_max;
227};
228
229struct matroxfb_par
230{
231 unsigned int final_bppShift;
232 unsigned int cmap_len;
233 struct {
234 unsigned int bytes;
235 unsigned int pixels;
236 unsigned int chunks;
237 } ydstorg;
238};
239
240struct matrox_fb_info;
241
242struct matrox_DAC1064_features {
243 u_int8_t xvrefctrl;
244 u_int8_t xmiscctrl;
245};
246
247/* current hardware status */
248struct mavenregs {
249 u_int8_t regs[256];
250 int mode;
251 int vlines;
252 int xtal;
253 int fv;
254
255 u_int16_t htotal;
256 u_int16_t hcorr;
257};
258
259struct matrox_crtc2 {
260 u_int32_t ctl;
261};
262
263struct matrox_hw_state {
264 u_int32_t MXoptionReg;
265 unsigned char DACclk[6];
266 unsigned char DACreg[80];
267 unsigned char MiscOutReg;
268 unsigned char DACpal[768];
269 unsigned char CRTC[25];
270 unsigned char CRTCEXT[9];
271 unsigned char SEQ[5];
272 /* unused for MGA mode, but who knows... */
273 unsigned char GCTL[9];
274 /* unused for MGA mode, but who knows... */
275 unsigned char ATTR[21];
276
277 /* TVOut only */
278 struct mavenregs maven;
279
280 struct matrox_crtc2 crtc2;
281};
282
283struct matrox_accel_data {
284#ifdef CONFIG_FB_MATROX_MILLENIUM
285 unsigned char ramdac_rev;
286#endif
287 u_int32_t m_dwg_rect;
288 u_int32_t m_opmode;
289 u_int32_t m_access;
290 u_int32_t m_pitch;
291};
292
293struct v4l2_queryctrl;
294struct v4l2_control;
295
296struct matrox_altout {
297 const char *name;
298 int (*compute)(void* altout_dev, struct my_timming* input);
299 int (*program)(void* altout_dev);
300 int (*start)(void* altout_dev);
301 int (*verifymode)(void* altout_dev, u_int32_t mode);
302 int (*getqueryctrl)(void* altout_dev,
303 struct v4l2_queryctrl* ctrl);
304 int (*getctrl)(void *altout_dev,
305 struct v4l2_control* ctrl);
306 int (*setctrl)(void *altout_dev,
307 struct v4l2_control* ctrl);
308};
309
310#define MATROXFB_SRC_NONE 0
311#define MATROXFB_SRC_CRTC1 1
312#define MATROXFB_SRC_CRTC2 2
313
314enum mga_chip { MGA_2064, MGA_2164, MGA_1064, MGA_1164, MGA_G100, MGA_G200, MGA_G400, MGA_G450, MGA_G550 };
315
316struct matrox_bios {
317 unsigned int bios_valid : 1;
318 unsigned int pins_len;
319 unsigned char pins[128];
320 struct {
321 unsigned char vMaj, vMin, vRev;
322 } version;
323 struct {
324 unsigned char state, tvout;
325 } output;
326};
327
328struct matrox_switch;
329struct matroxfb_driver;
330struct matroxfb_dh_fb_info;
331
332struct matrox_vsync {
333 wait_queue_head_t wait;
334 unsigned int cnt;
335};
336
337struct matrox_fb_info {
338 struct fb_info fbcon;
339
340 struct list_head next_fb;
341
342 int dead;
343 int initialized;
344 unsigned int usecount;
345
346 unsigned int userusecount;
347 unsigned long irq_flags;
348
349 struct matroxfb_par curr;
350 struct matrox_hw_state hw;
351
352 struct matrox_accel_data accel;
353
354 struct pci_dev* pcidev;
355
356 struct {
357 struct matrox_vsync vsync;
358 unsigned int pixclock;
359 int mnp;
360 int panpos;
361 } crtc1;
362 struct {
363 struct matrox_vsync vsync;
364 unsigned int pixclock;
365 int mnp;
366 struct matroxfb_dh_fb_info* info;
367 struct rw_semaphore lock;
368 } crtc2;
369 struct {
370 struct rw_semaphore lock;
371 struct {
372 int brightness, contrast, saturation, hue, gamma;
373 int testout, deflicker;
374 } tvo_params;
375 } altout;
376#define MATROXFB_MAX_OUTPUTS 3
377 struct {
378 unsigned int src;
379 struct matrox_altout* output;
380 void* data;
381 unsigned int mode;
382 unsigned int default_src;
383 } outputs[MATROXFB_MAX_OUTPUTS];
384
385#define MATROXFB_MAX_FB_DRIVERS 5
386 struct matroxfb_driver* (drivers[MATROXFB_MAX_FB_DRIVERS]);
387 void* (drivers_data[MATROXFB_MAX_FB_DRIVERS]);
388 unsigned int drivers_count;
389
390 struct {
391 unsigned long base; /* physical */
392 vaddr_t vbase; /* CPU view */
393 unsigned int len;
394 unsigned int len_usable;
395 unsigned int len_maximum;
396 } video;
397
398 struct {
399 unsigned long base; /* physical */
400 vaddr_t vbase; /* CPU view */
401 unsigned int len;
402 } mmio;
403
404 unsigned int max_pixel_clock;
405 unsigned int max_pixel_clock_panellink;
406
407 struct matrox_switch* hw_switch;
408
409 struct {
410 struct matrox_pll_features pll;
411 struct matrox_DAC1064_features DAC1064;
412 } features;
413 struct {
414 spinlock_t DAC;
415 spinlock_t accel;
416 } lock;
417
418 enum mga_chip chip;
419
420 int interleave;
421 int millenium;
422 int milleniumII;
423 struct {
424 int cfb4;
425 const int* vxres;
426 int cross4MB;
427 int text;
428 int plnwt;
429 int srcorg;
430 } capable;
431 int wc_cookie;
432 struct {
433 int precise_width;
434 int mga_24bpp_fix;
435 int novga;
436 int nobios;
437 int nopciretry;
438 int noinit;
439 int sgram;
440 int support32MB;
441
442 int accelerator;
443 int text_type_aux;
444 int video64bits;
445 int crtc2;
446 int maven_capable;
447 unsigned int vgastep;
448 unsigned int textmode;
449 unsigned int textstep;
450 unsigned int textvram; /* character cells */
451 unsigned int ydstorg; /* offset in bytes from video start to usable memory */
452 /* 0 except for 6MB Millenium */
453 int memtype;
454 int g450dac;
455 int dfp_type;
456 int panellink; /* G400 DFP possible (not G450/G550) */
457 int dualhead;
458 unsigned int fbResource;
459 } devflags;
460 struct fb_ops fbops;
461 struct matrox_bios bios;
462 struct {
463 struct matrox_pll_limits pixel;
464 struct matrox_pll_limits system;
465 struct matrox_pll_limits video;
466 } limits;
467 struct {
468 struct matrox_pll_cache pixel;
469 struct matrox_pll_cache system;
470 struct matrox_pll_cache video;
471 } cache;
472 struct {
473 struct {
474 unsigned int video;
475 unsigned int system;
476 } pll;
477 struct {
478 u_int32_t opt;
479 u_int32_t opt2;
480 u_int32_t opt3;
481 u_int32_t mctlwtst;
482 u_int32_t mctlwtst_core;
483 u_int32_t memmisc;
484 u_int32_t memrdbk;
485 u_int32_t maccess;
486 } reg;
487 struct {
488 unsigned int ddr:1,
489 emrswen:1,
490 dll:1;
491 } memory;
492 } values;
493 u_int32_t cmap[16];
494};
495
496#define info2minfo(info) container_of(info, struct matrox_fb_info, fbcon)
497
498struct matrox_switch {
499 int (*preinit)(struct matrox_fb_info *minfo);
500 void (*reset)(struct matrox_fb_info *minfo);
501 int (*init)(struct matrox_fb_info *minfo, struct my_timming*);
502 void (*restore)(struct matrox_fb_info *minfo);
503};
504
505struct matroxfb_driver {
506 struct list_head node;
507 char* name;
508 void* (*probe)(struct matrox_fb_info* info);
509 void (*remove)(struct matrox_fb_info* info, void* data);
510};
511
512int matroxfb_register_driver(struct matroxfb_driver* drv);
513void matroxfb_unregister_driver(struct matroxfb_driver* drv);
514
515#define PCI_OPTION_REG 0x40
516#define PCI_OPTION_ENABLE_ROM 0x40000000
517
518#define PCI_MGA_INDEX 0x44
519#define PCI_MGA_DATA 0x48
520#define PCI_OPTION2_REG 0x50
521#define PCI_OPTION3_REG 0x54
522#define PCI_MEMMISC_REG 0x58
523
524#define M_DWGCTL 0x1C00
525#define M_MACCESS 0x1C04
526#define M_CTLWTST 0x1C08
527
528#define M_PLNWT 0x1C1C
529
530#define M_BCOL 0x1C20
531#define M_FCOL 0x1C24
532
533#define M_SGN 0x1C58
534#define M_LEN 0x1C5C
535#define M_AR0 0x1C60
536#define M_AR1 0x1C64
537#define M_AR2 0x1C68
538#define M_AR3 0x1C6C
539#define M_AR4 0x1C70
540#define M_AR5 0x1C74
541#define M_AR6 0x1C78
542
543#define M_CXBNDRY 0x1C80
544#define M_FXBNDRY 0x1C84
545#define M_YDSTLEN 0x1C88
546#define M_PITCH 0x1C8C
547#define M_YDST 0x1C90
548#define M_YDSTORG 0x1C94
549#define M_YTOP 0x1C98
550#define M_YBOT 0x1C9C
551
552/* mystique only */
553#define M_CACHEFLUSH 0x1FFF
554
555#define M_EXEC 0x0100
556
557#define M_DWG_TRAP 0x04
558#define M_DWG_BITBLT 0x08
559#define M_DWG_ILOAD 0x09
560
561#define M_DWG_LINEAR 0x0080
562#define M_DWG_SOLID 0x0800
563#define M_DWG_ARZERO 0x1000
564#define M_DWG_SGNZERO 0x2000
565#define M_DWG_SHIFTZERO 0x4000
566
567#define M_DWG_REPLACE 0x000C0000
568#define M_DWG_REPLACE2 (M_DWG_REPLACE | 0x40)
569#define M_DWG_XOR 0x00060010
570
571#define M_DWG_BFCOL 0x04000000
572#define M_DWG_BMONOWF 0x08000000
573
574#define M_DWG_TRANSC 0x40000000
575
576#define M_FIFOSTATUS 0x1E10
577#define M_STATUS 0x1E14
578#define M_ICLEAR 0x1E18
579#define M_IEN 0x1E1C
580
581#define M_VCOUNT 0x1E20
582
583#define M_RESET 0x1E40
584#define M_MEMRDBK 0x1E44
585
586#define M_AGP2PLL 0x1E4C
587
588#define M_OPMODE 0x1E54
589#define M_OPMODE_DMA_GEN_WRITE 0x00
590#define M_OPMODE_DMA_BLIT 0x04
591#define M_OPMODE_DMA_VECTOR_WRITE 0x08
592#define M_OPMODE_DMA_LE 0x0000 /* little endian - no transformation */
593#define M_OPMODE_DMA_BE_8BPP 0x0000
594#define M_OPMODE_DMA_BE_16BPP 0x0100
595#define M_OPMODE_DMA_BE_32BPP 0x0200
596#define M_OPMODE_DIR_LE 0x000000 /* little endian - no transformation */
597#define M_OPMODE_DIR_BE_8BPP 0x000000
598#define M_OPMODE_DIR_BE_16BPP 0x010000
599#define M_OPMODE_DIR_BE_32BPP 0x020000
600
601#define M_ATTR_INDEX 0x1FC0
602#define M_ATTR_DATA 0x1FC1
603
604#define M_MISC_REG 0x1FC2
605#define M_3C2_RD 0x1FC2
606
607#define M_SEQ_INDEX 0x1FC4
608#define M_SEQ_DATA 0x1FC5
609#define M_SEQ1 0x01
610#define M_SEQ1_SCROFF 0x20
611
612#define M_MISC_REG_READ 0x1FCC
613
614#define M_GRAPHICS_INDEX 0x1FCE
615#define M_GRAPHICS_DATA 0x1FCF
616
617#define M_CRTC_INDEX 0x1FD4
618
619#define M_ATTR_RESET 0x1FDA
620#define M_3DA_WR 0x1FDA
621#define M_INSTS1 0x1FDA
622
623#define M_EXTVGA_INDEX 0x1FDE
624#define M_EXTVGA_DATA 0x1FDF
625
626/* G200 only */
627#define M_SRCORG 0x2CB4
628#define M_DSTORG 0x2CB8
629
630#define M_RAMDAC_BASE 0x3C00
631
632/* fortunately, same on TVP3026 and MGA1064 */
633#define M_DAC_REG (M_RAMDAC_BASE+0)
634#define M_DAC_VAL (M_RAMDAC_BASE+1)
635#define M_PALETTE_MASK (M_RAMDAC_BASE+2)
636
637#define M_X_INDEX 0x00
638#define M_X_DATAREG 0x0A
639
640#define DAC_XGENIOCTRL 0x2A
641#define DAC_XGENIODATA 0x2B
642
643#define M_C2CTL 0x3C10
644
645#define MX_OPTION_BSWAP 0x00000000
646
647#ifdef __LITTLE_ENDIAN
648#define M_OPMODE_4BPP (M_OPMODE_DMA_LE | M_OPMODE_DIR_LE | M_OPMODE_DMA_BLIT)
649#define M_OPMODE_8BPP (M_OPMODE_DMA_LE | M_OPMODE_DIR_LE | M_OPMODE_DMA_BLIT)
650#define M_OPMODE_16BPP (M_OPMODE_DMA_LE | M_OPMODE_DIR_LE | M_OPMODE_DMA_BLIT)
651#define M_OPMODE_24BPP (M_OPMODE_DMA_LE | M_OPMODE_DIR_LE | M_OPMODE_DMA_BLIT)
652#define M_OPMODE_32BPP (M_OPMODE_DMA_LE | M_OPMODE_DIR_LE | M_OPMODE_DMA_BLIT)
653#else
654#ifdef __BIG_ENDIAN
655#define M_OPMODE_4BPP (M_OPMODE_DMA_LE | M_OPMODE_DIR_LE | M_OPMODE_DMA_BLIT) /* TODO */
656#define M_OPMODE_8BPP (M_OPMODE_DMA_LE | M_OPMODE_DIR_BE_8BPP | M_OPMODE_DMA_BLIT)
657#define M_OPMODE_16BPP (M_OPMODE_DMA_LE | M_OPMODE_DIR_BE_16BPP | M_OPMODE_DMA_BLIT)
658#define M_OPMODE_24BPP (M_OPMODE_DMA_LE | M_OPMODE_DIR_BE_8BPP | M_OPMODE_DMA_BLIT) /* TODO, ?32 */
659#define M_OPMODE_32BPP (M_OPMODE_DMA_LE | M_OPMODE_DIR_BE_32BPP | M_OPMODE_DMA_BLIT)
660#else
661#error "Byte ordering have to be defined. Cannot continue."
662#endif
663#endif
664
665#define mga_inb(addr) mga_readb(minfo->mmio.vbase, (addr))
666#define mga_inl(addr) mga_readl(minfo->mmio.vbase, (addr))
667#define mga_outb(addr,val) mga_writeb(minfo->mmio.vbase, (addr), (val))
668#define mga_outw(addr,val) mga_writew(minfo->mmio.vbase, (addr), (val))
669#define mga_outl(addr,val) mga_writel(minfo->mmio.vbase, (addr), (val))
670#define mga_readr(port,idx) (mga_outb((port),(idx)), mga_inb((port)+1))
671#define mga_setr(addr,port,val) mga_outw(addr, ((val)<<8) | (port))
672
673#define mga_fifo(n) do {} while ((mga_inl(M_FIFOSTATUS) & 0xFF) < (n))
674
675#define WaitTillIdle() do { mga_inl(M_STATUS); do {} while (mga_inl(M_STATUS) & 0x10000); } while (0)
676
677/* code speedup */
678#ifdef CONFIG_FB_MATROX_MILLENIUM
679#define isInterleave(x) (x->interleave)
680#define isMillenium(x) (x->millenium)
681#define isMilleniumII(x) (x->milleniumII)
682#else
683#define isInterleave(x) (0)
684#define isMillenium(x) (0)
685#define isMilleniumII(x) (0)
686#endif
687
688#define matroxfb_DAC_lock() spin_lock(&minfo->lock.DAC)
689#define matroxfb_DAC_unlock() spin_unlock(&minfo->lock.DAC)
690#define matroxfb_DAC_lock_irqsave(flags) spin_lock_irqsave(&minfo->lock.DAC, flags)
691#define matroxfb_DAC_unlock_irqrestore(flags) spin_unlock_irqrestore(&minfo->lock.DAC, flags)
692extern void matroxfb_DAC_out(const struct matrox_fb_info *minfo, int reg,
693 int val);
694extern int matroxfb_DAC_in(const struct matrox_fb_info *minfo, int reg);
695extern void matroxfb_var2my(struct fb_var_screeninfo* fvsi, struct my_timming* mt);
696extern int matroxfb_wait_for_sync(struct matrox_fb_info *minfo, u_int32_t crtc);
697extern int matroxfb_enable_irq(struct matrox_fb_info *minfo, int reenable);
698
699#ifdef MATROXFB_USE_SPINLOCKS
700#define CRITBEGIN spin_lock_irqsave(&minfo->lock.accel, critflags);
701#define CRITEND spin_unlock_irqrestore(&minfo->lock.accel, critflags);
702#define CRITFLAGS unsigned long critflags;
703#else
704#define CRITBEGIN
705#define CRITEND
706#define CRITFLAGS
707#endif
708
709#endif /* __MATROXFB_H__ */