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 <vandrove@vc.cvut.cz>
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 <asm/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 
123 typedef struct {
124 	void __iomem*	vaddr;
125 } vaddr_t;
126 
127 static inline unsigned int mga_readb(vaddr_t va, unsigned int offs) {
128 	return readb(va.vaddr + offs);
129 }
130 
131 static inline void mga_writeb(vaddr_t va, unsigned int offs, u_int8_t value) {
132 	writeb(value, va.vaddr + offs);
133 }
134 
135 static inline void mga_writew(vaddr_t va, unsigned int offs, u_int16_t value) {
136 	writew(value, va.vaddr + offs);
137 }
138 
139 static inline u_int32_t mga_readl(vaddr_t va, unsigned int offs) {
140 	return readl(va.vaddr + offs);
141 }
142 
143 static inline void mga_writel(vaddr_t va, unsigned int offs, u_int32_t value) {
144 	writel(value, va.vaddr + offs);
145 }
146 
147 static 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 
178 static inline void vaddr_add(vaddr_t* va, unsigned long offs) {
179 	va->vaddr += offs;
180 }
181 
182 static inline void __iomem* vaddr_va(vaddr_t va) {
183 	return va.vaddr;
184 }
185 
186 struct 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 
204 enum { M_SYSTEM_PLL, M_PIXEL_PLL_A, M_PIXEL_PLL_B, M_PIXEL_PLL_C, M_VIDEO_PLL };
205 
206 struct matrox_pll_cache {
207 	unsigned int	valid;
208 	struct {
209 		unsigned int	mnp_key;
210 		unsigned int	mnp_value;
211 		      } data[4];
212 };
213 
214 struct matrox_pll_limits {
215 	unsigned int	vcomin;
216 	unsigned int	vcomax;
217 };
218 
219 struct 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 
229 struct 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 
240 struct matrox_fb_info;
241 
242 struct matrox_DAC1064_features {
243 	u_int8_t	xvrefctrl;
244 	u_int8_t	xmiscctrl;
245 };
246 
247 /* current hardware status */
248 struct 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 
259 struct matrox_crtc2 {
260 	u_int32_t ctl;
261 };
262 
263 struct 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 
283 struct 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 
293 struct v4l2_queryctrl;
294 struct v4l2_control;
295 
296 struct 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 
314 enum mga_chip { MGA_2064, MGA_2164, MGA_1064, MGA_1164, MGA_G100, MGA_G200, MGA_G400, MGA_G450, MGA_G550 };
315 
316 struct 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 
328 struct matrox_switch;
329 struct matroxfb_driver;
330 struct matroxfb_dh_fb_info;
331 
332 struct matrox_vsync {
333 	wait_queue_head_t	wait;
334 	unsigned int		cnt;
335 };
336 
337 struct 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 
498 struct 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 
505 struct 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 
512 int matroxfb_register_driver(struct matroxfb_driver* drv);
513 void 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)
692 extern void matroxfb_DAC_out(const struct matrox_fb_info *minfo, int reg,
693 			     int val);
694 extern int matroxfb_DAC_in(const struct matrox_fb_info *minfo, int reg);
695 extern void matroxfb_var2my(struct fb_var_screeninfo* fvsi, struct my_timming* mt);
696 extern int matroxfb_wait_for_sync(struct matrox_fb_info *minfo, u_int32_t crtc);
697 extern 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__ */
710