1 /*
2  *
3  * Hardware accelerated Matrox Millennium I, II, Mystique, G100, G200, G400 and G450
4  *
5  * (c) 1998-2002 Petr Vandrovec <vandrove@vc.cvut.cz>
6  *
7  */
8 #ifndef __MATROXFB_H__
9 #define __MATROXFB_H__
10 
11 /* general, but fairly heavy, debugging */
12 #undef MATROXFB_DEBUG
13 
14 /* heavy debugging: */
15 /* -- logs putc[s], so every time a char is displayed, it's logged */
16 #undef MATROXFB_DEBUG_HEAVY
17 
18 /* This one _could_ cause infinite loops */
19 /* It _does_ cause lots and lots of messages during idle loops */
20 #undef MATROXFB_DEBUG_LOOP
21 
22 /* Debug register calls, too? */
23 #undef MATROXFB_DEBUG_REG
24 
25 /* Guard accelerator accesses with spin_lock_irqsave... */
26 #undef MATROXFB_USE_SPINLOCKS
27 
28 #include <linux/module.h>
29 #include <linux/kernel.h>
30 #include <linux/errno.h>
31 #include <linux/string.h>
32 #include <linux/mm.h>
33 #include <linux/slab.h>
34 #include <linux/delay.h>
35 #include <linux/fb.h>
36 #include <linux/console.h>
37 #include <linux/selection.h>
38 #include <linux/ioport.h>
39 #include <linux/init.h>
40 #include <linux/timer.h>
41 #include <linux/pci.h>
42 #include <linux/spinlock.h>
43 #include <linux/kd.h>
44 
45 #include <asm/io.h>
46 #include <asm/unaligned.h>
47 #ifdef CONFIG_MTRR
48 #include <asm/mtrr.h>
49 #endif
50 
51 #if defined(CONFIG_PPC_PMAC)
52 #include <asm/prom.h>
53 #include <asm/pci-bridge.h>
54 #include "../macmodes.h"
55 #endif
56 
57 #ifdef MATROXFB_DEBUG
58 
59 #define DEBUG
60 #define DBG(x)		printk(KERN_DEBUG "matroxfb: %s\n", (x));
61 
62 #ifdef MATROXFB_DEBUG_HEAVY
63 #define DBG_HEAVY(x)	DBG(x)
64 #else /* MATROXFB_DEBUG_HEAVY */
65 #define DBG_HEAVY(x)	/* DBG_HEAVY */
66 #endif /* MATROXFB_DEBUG_HEAVY */
67 
68 #ifdef MATROXFB_DEBUG_LOOP
69 #define DBG_LOOP(x)	DBG(x)
70 #else /* MATROXFB_DEBUG_LOOP */
71 #define DBG_LOOP(x)	/* DBG_LOOP */
72 #endif /* MATROXFB_DEBUG_LOOP */
73 
74 #ifdef MATROXFB_DEBUG_REG
75 #define DBG_REG(x)	DBG(x)
76 #else /* MATROXFB_DEBUG_REG */
77 #define DBG_REG(x)	/* DBG_REG */
78 #endif /* MATROXFB_DEBUG_REG */
79 
80 #else /* MATROXFB_DEBUG */
81 
82 #define DBG(x)		/* DBG */
83 #define DBG_HEAVY(x)	/* DBG_HEAVY */
84 #define DBG_REG(x)	/* DBG_REG */
85 #define DBG_LOOP(x)	/* DBG_LOOP */
86 
87 #endif /* MATROXFB_DEBUG */
88 
89 #ifdef DEBUG
90 #define dprintk(X...)	printk(X)
91 #else
92 #define dprintk(X...)
93 #endif
94 
95 #ifndef PCI_SS_VENDOR_ID_SIEMENS_NIXDORF
96 #define PCI_SS_VENDOR_ID_SIEMENS_NIXDORF	0x110A
97 #endif
98 #ifndef PCI_SS_VENDOR_ID_MATROX
99 #define PCI_SS_VENDOR_ID_MATROX		PCI_VENDOR_ID_MATROX
100 #endif
101 
102 #ifndef PCI_SS_ID_MATROX_PRODUCTIVA_G100_AGP
103 #define PCI_SS_ID_MATROX_GENERIC		0xFF00
104 #define PCI_SS_ID_MATROX_PRODUCTIVA_G100_AGP	0xFF01
105 #define PCI_SS_ID_MATROX_MYSTIQUE_G200_AGP	0xFF02
106 #define PCI_SS_ID_MATROX_MILLENIUM_G200_AGP	0xFF03
107 #define PCI_SS_ID_MATROX_MARVEL_G200_AGP	0xFF04
108 #define PCI_SS_ID_MATROX_MGA_G100_PCI		0xFF05
109 #define PCI_SS_ID_MATROX_MGA_G100_AGP		0x1001
110 #define PCI_SS_ID_MATROX_MILLENNIUM_G400_MAX_AGP	0x2179
111 #define PCI_SS_ID_SIEMENS_MGA_G100_AGP		0x001E /* 30 */
112 #define PCI_SS_ID_SIEMENS_MGA_G200_AGP		0x0032 /* 50 */
113 #endif
114 
115 #define MX_VISUAL_TRUECOLOR	FB_VISUAL_DIRECTCOLOR
116 #define MX_VISUAL_DIRECTCOLOR	FB_VISUAL_TRUECOLOR
117 #define MX_VISUAL_PSEUDOCOLOR	FB_VISUAL_PSEUDOCOLOR
118 
119 #define CNVT_TOHW(val,width) ((((val)<<(width))+0x7FFF-(val))>>16)
120 
121 /* G-series and Mystique have (almost) same DAC */
122 #undef NEED_DAC1064
123 #if defined(CONFIG_FB_MATROX_MYSTIQUE) || defined(CONFIG_FB_MATROX_G)
124 #define NEED_DAC1064 1
125 #endif
126 
127 typedef struct {
128 	void __iomem*	vaddr;
129 } vaddr_t;
130 
mga_readb(vaddr_t va,unsigned int offs)131 static inline unsigned int mga_readb(vaddr_t va, unsigned int offs) {
132 	return readb(va.vaddr + offs);
133 }
134 
mga_writeb(vaddr_t va,unsigned int offs,u_int8_t value)135 static inline void mga_writeb(vaddr_t va, unsigned int offs, u_int8_t value) {
136 	writeb(value, va.vaddr + offs);
137 }
138 
mga_writew(vaddr_t va,unsigned int offs,u_int16_t value)139 static inline void mga_writew(vaddr_t va, unsigned int offs, u_int16_t value) {
140 	writew(value, va.vaddr + offs);
141 }
142 
mga_readl(vaddr_t va,unsigned int offs)143 static inline u_int32_t mga_readl(vaddr_t va, unsigned int offs) {
144 	return readl(va.vaddr + offs);
145 }
146 
mga_writel(vaddr_t va,unsigned int offs,u_int32_t value)147 static inline void mga_writel(vaddr_t va, unsigned int offs, u_int32_t value) {
148 	writel(value, va.vaddr + offs);
149 }
150 
mga_memcpy_toio(vaddr_t va,const void * src,int len)151 static inline void mga_memcpy_toio(vaddr_t va, const void* src, int len) {
152 #if defined(__alpha__) || defined(__i386__) || defined(__x86_64__)
153 	/*
154 	 * iowrite32_rep works for us if:
155 	 *  (1) Copies data as 32bit quantities, not byte after byte,
156 	 *  (2) Performs LE ordered stores, and
157 	 *  (3) It copes with unaligned source (destination is guaranteed to be page
158 	 *      aligned and length is guaranteed to be multiple of 4).
159 	 */
160 	iowrite32_rep(va.vaddr, src, len >> 2);
161 #else
162         u_int32_t __iomem* addr = va.vaddr;
163 
164 	if ((unsigned long)src & 3) {
165 		while (len >= 4) {
166 			fb_writel(get_unaligned((u32 *)src), addr);
167 			addr++;
168 			len -= 4;
169 			src += 4;
170 		}
171 	} else {
172 		while (len >= 4) {
173 			fb_writel(*(u32 *)src, addr);
174 			addr++;
175 			len -= 4;
176 			src += 4;
177 		}
178 	}
179 #endif
180 }
181 
vaddr_add(vaddr_t * va,unsigned long offs)182 static inline void vaddr_add(vaddr_t* va, unsigned long offs) {
183 	va->vaddr += offs;
184 }
185 
vaddr_va(vaddr_t va)186 static inline void __iomem* vaddr_va(vaddr_t va) {
187 	return va.vaddr;
188 }
189 
190 #define MGA_IOREMAP_NORMAL	0
191 #define MGA_IOREMAP_NOCACHE	1
192 
193 #define MGA_IOREMAP_FB		MGA_IOREMAP_NOCACHE
194 #define MGA_IOREMAP_MMIO	MGA_IOREMAP_NOCACHE
mga_ioremap(unsigned long phys,unsigned long size,int flags,vaddr_t * virt)195 static inline int mga_ioremap(unsigned long phys, unsigned long size, int flags, vaddr_t* virt) {
196 	if (flags & MGA_IOREMAP_NOCACHE)
197 		virt->vaddr = ioremap_nocache(phys, size);
198 	else
199 		virt->vaddr = ioremap(phys, size);
200 	return (virt->vaddr == NULL); /* 0, !0... 0, error_code in future */
201 }
202 
mga_iounmap(vaddr_t va)203 static inline void mga_iounmap(vaddr_t va) {
204 	iounmap(va.vaddr);
205 }
206 
207 struct my_timming {
208 	unsigned int pixclock;
209 	int mnp;
210 	unsigned int crtc;
211 	unsigned int HDisplay;
212 	unsigned int HSyncStart;
213 	unsigned int HSyncEnd;
214 	unsigned int HTotal;
215 	unsigned int VDisplay;
216 	unsigned int VSyncStart;
217 	unsigned int VSyncEnd;
218 	unsigned int VTotal;
219 	unsigned int sync;
220 	int	     dblscan;
221 	int	     interlaced;
222 	unsigned int delay;	/* CRTC delay */
223 };
224 
225 enum { M_SYSTEM_PLL, M_PIXEL_PLL_A, M_PIXEL_PLL_B, M_PIXEL_PLL_C, M_VIDEO_PLL };
226 
227 struct matrox_pll_cache {
228 	unsigned int	valid;
229 	struct {
230 		unsigned int	mnp_key;
231 		unsigned int	mnp_value;
232 		      } data[4];
233 };
234 
235 struct matrox_pll_limits {
236 	unsigned int	vcomin;
237 	unsigned int	vcomax;
238 };
239 
240 struct matrox_pll_features {
241 	unsigned int	vco_freq_min;
242 	unsigned int	ref_freq;
243 	unsigned int	feed_div_min;
244 	unsigned int	feed_div_max;
245 	unsigned int	in_div_min;
246 	unsigned int	in_div_max;
247 	unsigned int	post_shift_max;
248 };
249 
250 struct matroxfb_par
251 {
252 	unsigned int	final_bppShift;
253 	unsigned int	cmap_len;
254 	struct {
255 		unsigned int bytes;
256 		unsigned int pixels;
257 		unsigned int chunks;
258 		      } ydstorg;
259 };
260 
261 struct matrox_fb_info;
262 
263 struct matrox_DAC1064_features {
264 	u_int8_t	xvrefctrl;
265 	u_int8_t	xmiscctrl;
266 };
267 
268 /* current hardware status */
269 struct mavenregs {
270 	u_int8_t regs[256];
271 	int	 mode;
272 	int	 vlines;
273 	int	 xtal;
274 	int	 fv;
275 
276 	u_int16_t htotal;
277 	u_int16_t hcorr;
278 };
279 
280 struct matrox_crtc2 {
281 	u_int32_t ctl;
282 };
283 
284 struct matrox_hw_state {
285 	u_int32_t	MXoptionReg;
286 	unsigned char	DACclk[6];
287 	unsigned char	DACreg[80];
288 	unsigned char	MiscOutReg;
289 	unsigned char	DACpal[768];
290 	unsigned char	CRTC[25];
291 	unsigned char	CRTCEXT[9];
292 	unsigned char	SEQ[5];
293 	/* unused for MGA mode, but who knows... */
294 	unsigned char	GCTL[9];
295 	/* unused for MGA mode, but who knows... */
296 	unsigned char	ATTR[21];
297 
298 	/* TVOut only */
299 	struct mavenregs	maven;
300 
301 	struct matrox_crtc2	crtc2;
302 };
303 
304 struct matrox_accel_data {
305 #ifdef CONFIG_FB_MATROX_MILLENIUM
306 	unsigned char	ramdac_rev;
307 #endif
308 	u_int32_t	m_dwg_rect;
309 	u_int32_t	m_opmode;
310 	u_int32_t	m_access;
311 	u_int32_t	m_pitch;
312 };
313 
314 struct v4l2_queryctrl;
315 struct v4l2_control;
316 
317 struct matrox_altout {
318 	const char	*name;
319 	int		(*compute)(void* altout_dev, struct my_timming* input);
320 	int		(*program)(void* altout_dev);
321 	int		(*start)(void* altout_dev);
322 	int		(*verifymode)(void* altout_dev, u_int32_t mode);
323 	int		(*getqueryctrl)(void* altout_dev,
324 					struct v4l2_queryctrl* ctrl);
325 	int		(*getctrl)(void* altout_dev,
326 				   struct v4l2_control* ctrl);
327 	int		(*setctrl)(void* altout_dev,
328 				   struct v4l2_control* ctrl);
329 };
330 
331 #define MATROXFB_SRC_NONE	0
332 #define MATROXFB_SRC_CRTC1	1
333 #define MATROXFB_SRC_CRTC2	2
334 
335 enum mga_chip { MGA_2064, MGA_2164, MGA_1064, MGA_1164, MGA_G100, MGA_G200, MGA_G400, MGA_G450, MGA_G550 };
336 
337 struct matrox_bios {
338 	unsigned int	bios_valid : 1;
339 	unsigned int	pins_len;
340 	unsigned char	pins[128];
341 	struct {
342 		unsigned char vMaj, vMin, vRev;
343 		      } version;
344 	struct {
345 		unsigned char state, tvout;
346 		      } output;
347 };
348 
349 struct matrox_switch;
350 struct matroxfb_driver;
351 struct matroxfb_dh_fb_info;
352 
353 struct matrox_vsync {
354 	wait_queue_head_t	wait;
355 	unsigned int		cnt;
356 };
357 
358 struct matrox_fb_info {
359 	struct fb_info		fbcon;
360 
361 	struct list_head	next_fb;
362 
363 	int			dead;
364 	int                     initialized;
365 	unsigned int		usecount;
366 
367 	unsigned int		userusecount;
368 	unsigned long		irq_flags;
369 
370 	struct matroxfb_par	curr;
371 	struct matrox_hw_state	hw;
372 
373 	struct matrox_accel_data accel;
374 
375 	struct pci_dev*		pcidev;
376 
377 	struct {
378 		struct matrox_vsync	vsync;
379 		unsigned int	pixclock;
380 		int		mnp;
381 		int		panpos;
382 			      } crtc1;
383 	struct {
384 		struct matrox_vsync	vsync;
385 		unsigned int 	pixclock;
386 		int		mnp;
387 	struct matroxfb_dh_fb_info*	info;
388 	struct rw_semaphore	lock;
389 			      } crtc2;
390 	struct {
391 	struct rw_semaphore	lock;
392 	struct {
393 		int brightness, contrast, saturation, hue, gamma;
394 		int testout, deflicker;
395 				} tvo_params;
396 			      } altout;
397 #define MATROXFB_MAX_OUTPUTS		3
398 	struct {
399 	unsigned int		src;
400 	struct matrox_altout*	output;
401 	void*			data;
402 	unsigned int		mode;
403 	unsigned int		default_src;
404 			      } outputs[MATROXFB_MAX_OUTPUTS];
405 
406 #define MATROXFB_MAX_FB_DRIVERS		5
407 	struct matroxfb_driver* (drivers[MATROXFB_MAX_FB_DRIVERS]);
408 	void*			(drivers_data[MATROXFB_MAX_FB_DRIVERS]);
409 	unsigned int		drivers_count;
410 
411 	struct {
412 	unsigned long	base;	/* physical */
413 	vaddr_t		vbase;	/* CPU view */
414 	unsigned int	len;
415 	unsigned int	len_usable;
416 	unsigned int	len_maximum;
417 		      } video;
418 
419 	struct {
420 	unsigned long	base;	/* physical */
421 	vaddr_t		vbase;	/* CPU view */
422 	unsigned int	len;
423 		      } mmio;
424 
425 	unsigned int	max_pixel_clock;
426 	unsigned int	max_pixel_clock_panellink;
427 
428 	struct matrox_switch*	hw_switch;
429 
430 	struct {
431 		struct matrox_pll_features pll;
432 		struct matrox_DAC1064_features DAC1064;
433 			      } features;
434 	struct {
435 		spinlock_t	DAC;
436 		spinlock_t	accel;
437 			      } lock;
438 
439 	enum mga_chip		chip;
440 
441 	int			interleave;
442 	int			millenium;
443 	int			milleniumII;
444 	struct {
445 		int		cfb4;
446 		const int*	vxres;
447 		int		cross4MB;
448 		int		text;
449 		int		plnwt;
450 		int		srcorg;
451 			      } capable;
452 #ifdef CONFIG_MTRR
453 	struct {
454 		int		vram;
455 		int		vram_valid;
456 			      } mtrr;
457 #endif
458 	struct {
459 		int		precise_width;
460 		int		mga_24bpp_fix;
461 		int		novga;
462 		int		nobios;
463 		int		nopciretry;
464 		int		noinit;
465 		int		sgram;
466 		int		support32MB;
467 
468 		int		accelerator;
469 		int		text_type_aux;
470 		int		video64bits;
471 		int		crtc2;
472 		int		maven_capable;
473 		unsigned int	vgastep;
474 		unsigned int	textmode;
475 		unsigned int	textstep;
476 		unsigned int	textvram;	/* character cells */
477 		unsigned int	ydstorg;	/* offset in bytes from video start to usable memory */
478 						/* 0 except for 6MB Millenium */
479 		int		memtype;
480 		int		g450dac;
481 		int		dfp_type;
482 		int		panellink;	/* G400 DFP possible (not G450/G550) */
483 		int		dualhead;
484 		unsigned int	fbResource;
485 			      } devflags;
486 	struct fb_ops		fbops;
487 	struct matrox_bios	bios;
488 	struct {
489 		struct matrox_pll_limits	pixel;
490 		struct matrox_pll_limits	system;
491 		struct matrox_pll_limits	video;
492 			      } limits;
493 	struct {
494 		struct matrox_pll_cache	pixel;
495 		struct matrox_pll_cache	system;
496 		struct matrox_pll_cache	video;
497 				      } cache;
498 	struct {
499 		struct {
500 			unsigned int	video;
501 			unsigned int	system;
502 				      } pll;
503 		struct {
504 			u_int32_t	opt;
505 			u_int32_t	opt2;
506 			u_int32_t	opt3;
507 			u_int32_t	mctlwtst;
508 			u_int32_t	mctlwtst_core;
509 			u_int32_t	memmisc;
510 			u_int32_t	memrdbk;
511 			u_int32_t	maccess;
512 				      } reg;
513 		struct {
514 			unsigned int	ddr:1,
515 			                emrswen:1,
516 					dll:1;
517 				      } memory;
518 			      } values;
519 	u_int32_t cmap[16];
520 };
521 
522 #define info2minfo(info) container_of(info, struct matrox_fb_info, fbcon)
523 
524 struct matrox_switch {
525 	int	(*preinit)(struct matrox_fb_info *minfo);
526 	void	(*reset)(struct matrox_fb_info *minfo);
527 	int	(*init)(struct matrox_fb_info *minfo, struct my_timming*);
528 	void	(*restore)(struct matrox_fb_info *minfo);
529 };
530 
531 struct matroxfb_driver {
532 	struct list_head	node;
533 	char*			name;
534 	void*			(*probe)(struct matrox_fb_info* info);
535 	void			(*remove)(struct matrox_fb_info* info, void* data);
536 };
537 
538 int matroxfb_register_driver(struct matroxfb_driver* drv);
539 void matroxfb_unregister_driver(struct matroxfb_driver* drv);
540 
541 #define PCI_OPTION_REG	0x40
542 #define   PCI_OPTION_ENABLE_ROM		0x40000000
543 
544 #define PCI_MGA_INDEX	0x44
545 #define PCI_MGA_DATA	0x48
546 #define PCI_OPTION2_REG	0x50
547 #define PCI_OPTION3_REG	0x54
548 #define PCI_MEMMISC_REG	0x58
549 
550 #define M_DWGCTL	0x1C00
551 #define M_MACCESS	0x1C04
552 #define M_CTLWTST	0x1C08
553 
554 #define M_PLNWT		0x1C1C
555 
556 #define M_BCOL		0x1C20
557 #define M_FCOL		0x1C24
558 
559 #define M_SGN		0x1C58
560 #define M_LEN		0x1C5C
561 #define M_AR0		0x1C60
562 #define M_AR1		0x1C64
563 #define M_AR2		0x1C68
564 #define M_AR3		0x1C6C
565 #define M_AR4		0x1C70
566 #define M_AR5		0x1C74
567 #define M_AR6		0x1C78
568 
569 #define M_CXBNDRY	0x1C80
570 #define M_FXBNDRY	0x1C84
571 #define M_YDSTLEN	0x1C88
572 #define M_PITCH		0x1C8C
573 #define M_YDST		0x1C90
574 #define M_YDSTORG	0x1C94
575 #define M_YTOP		0x1C98
576 #define M_YBOT		0x1C9C
577 
578 /* mystique only */
579 #define M_CACHEFLUSH	0x1FFF
580 
581 #define M_EXEC		0x0100
582 
583 #define M_DWG_TRAP	0x04
584 #define M_DWG_BITBLT	0x08
585 #define M_DWG_ILOAD	0x09
586 
587 #define M_DWG_LINEAR	0x0080
588 #define M_DWG_SOLID	0x0800
589 #define M_DWG_ARZERO	0x1000
590 #define M_DWG_SGNZERO	0x2000
591 #define M_DWG_SHIFTZERO	0x4000
592 
593 #define M_DWG_REPLACE	0x000C0000
594 #define M_DWG_REPLACE2	(M_DWG_REPLACE | 0x40)
595 #define M_DWG_XOR	0x00060010
596 
597 #define M_DWG_BFCOL	0x04000000
598 #define M_DWG_BMONOWF	0x08000000
599 
600 #define M_DWG_TRANSC	0x40000000
601 
602 #define M_FIFOSTATUS	0x1E10
603 #define M_STATUS	0x1E14
604 #define M_ICLEAR	0x1E18
605 #define M_IEN		0x1E1C
606 
607 #define M_VCOUNT	0x1E20
608 
609 #define M_RESET		0x1E40
610 #define M_MEMRDBK	0x1E44
611 
612 #define M_AGP2PLL	0x1E4C
613 
614 #define M_OPMODE	0x1E54
615 #define     M_OPMODE_DMA_GEN_WRITE	0x00
616 #define     M_OPMODE_DMA_BLIT		0x04
617 #define     M_OPMODE_DMA_VECTOR_WRITE	0x08
618 #define     M_OPMODE_DMA_LE		0x0000		/* little endian - no transformation */
619 #define     M_OPMODE_DMA_BE_8BPP	0x0000
620 #define     M_OPMODE_DMA_BE_16BPP	0x0100
621 #define     M_OPMODE_DMA_BE_32BPP	0x0200
622 #define     M_OPMODE_DIR_LE		0x000000	/* little endian - no transformation */
623 #define     M_OPMODE_DIR_BE_8BPP	0x000000
624 #define     M_OPMODE_DIR_BE_16BPP	0x010000
625 #define     M_OPMODE_DIR_BE_32BPP	0x020000
626 
627 #define M_ATTR_INDEX	0x1FC0
628 #define M_ATTR_DATA	0x1FC1
629 
630 #define M_MISC_REG	0x1FC2
631 #define M_3C2_RD	0x1FC2
632 
633 #define M_SEQ_INDEX	0x1FC4
634 #define M_SEQ_DATA	0x1FC5
635 #define     M_SEQ1		0x01
636 #define        M_SEQ1_SCROFF		0x20
637 
638 #define M_MISC_REG_READ	0x1FCC
639 
640 #define M_GRAPHICS_INDEX 0x1FCE
641 #define M_GRAPHICS_DATA	0x1FCF
642 
643 #define M_CRTC_INDEX	0x1FD4
644 
645 #define M_ATTR_RESET	0x1FDA
646 #define M_3DA_WR	0x1FDA
647 #define M_INSTS1	0x1FDA
648 
649 #define M_EXTVGA_INDEX	0x1FDE
650 #define M_EXTVGA_DATA	0x1FDF
651 
652 /* G200 only */
653 #define M_SRCORG	0x2CB4
654 #define M_DSTORG	0x2CB8
655 
656 #define M_RAMDAC_BASE	0x3C00
657 
658 /* fortunately, same on TVP3026 and MGA1064 */
659 #define M_DAC_REG	(M_RAMDAC_BASE+0)
660 #define M_DAC_VAL	(M_RAMDAC_BASE+1)
661 #define M_PALETTE_MASK	(M_RAMDAC_BASE+2)
662 
663 #define M_X_INDEX	0x00
664 #define M_X_DATAREG	0x0A
665 
666 #define DAC_XGENIOCTRL		0x2A
667 #define DAC_XGENIODATA		0x2B
668 
669 #define M_C2CTL		0x3C10
670 
671 #define MX_OPTION_BSWAP         0x00000000
672 
673 #ifdef __LITTLE_ENDIAN
674 #define M_OPMODE_4BPP	(M_OPMODE_DMA_LE | M_OPMODE_DIR_LE | M_OPMODE_DMA_BLIT)
675 #define M_OPMODE_8BPP	(M_OPMODE_DMA_LE | M_OPMODE_DIR_LE | M_OPMODE_DMA_BLIT)
676 #define M_OPMODE_16BPP	(M_OPMODE_DMA_LE | M_OPMODE_DIR_LE | M_OPMODE_DMA_BLIT)
677 #define M_OPMODE_24BPP	(M_OPMODE_DMA_LE | M_OPMODE_DIR_LE | M_OPMODE_DMA_BLIT)
678 #define M_OPMODE_32BPP	(M_OPMODE_DMA_LE | M_OPMODE_DIR_LE | M_OPMODE_DMA_BLIT)
679 #else
680 #ifdef __BIG_ENDIAN
681 #define M_OPMODE_4BPP	(M_OPMODE_DMA_LE | M_OPMODE_DIR_LE       | M_OPMODE_DMA_BLIT)	/* TODO */
682 #define M_OPMODE_8BPP	(M_OPMODE_DMA_LE | M_OPMODE_DIR_BE_8BPP  | M_OPMODE_DMA_BLIT)
683 #define M_OPMODE_16BPP	(M_OPMODE_DMA_LE | M_OPMODE_DIR_BE_16BPP | M_OPMODE_DMA_BLIT)
684 #define M_OPMODE_24BPP	(M_OPMODE_DMA_LE | M_OPMODE_DIR_BE_8BPP  | M_OPMODE_DMA_BLIT)	/* TODO, ?32 */
685 #define M_OPMODE_32BPP	(M_OPMODE_DMA_LE | M_OPMODE_DIR_BE_32BPP | M_OPMODE_DMA_BLIT)
686 #else
687 #error "Byte ordering have to be defined. Cannot continue."
688 #endif
689 #endif
690 
691 #define mga_inb(addr)		mga_readb(minfo->mmio.vbase, (addr))
692 #define mga_inl(addr)		mga_readl(minfo->mmio.vbase, (addr))
693 #define mga_outb(addr,val)	mga_writeb(minfo->mmio.vbase, (addr), (val))
694 #define mga_outw(addr,val)	mga_writew(minfo->mmio.vbase, (addr), (val))
695 #define mga_outl(addr,val)	mga_writel(minfo->mmio.vbase, (addr), (val))
696 #define mga_readr(port,idx)	(mga_outb((port),(idx)), mga_inb((port)+1))
697 #define mga_setr(addr,port,val)	mga_outw(addr, ((val)<<8) | (port))
698 
699 #define mga_fifo(n)	do {} while ((mga_inl(M_FIFOSTATUS) & 0xFF) < (n))
700 
701 #define WaitTillIdle()	do { mga_inl(M_STATUS); do {} while (mga_inl(M_STATUS) & 0x10000); } while (0)
702 
703 /* code speedup */
704 #ifdef CONFIG_FB_MATROX_MILLENIUM
705 #define isInterleave(x)	 (x->interleave)
706 #define isMillenium(x)	 (x->millenium)
707 #define isMilleniumII(x) (x->milleniumII)
708 #else
709 #define isInterleave(x)  (0)
710 #define isMillenium(x)	 (0)
711 #define isMilleniumII(x) (0)
712 #endif
713 
714 #define matroxfb_DAC_lock()                   spin_lock(&minfo->lock.DAC)
715 #define matroxfb_DAC_unlock()                 spin_unlock(&minfo->lock.DAC)
716 #define matroxfb_DAC_lock_irqsave(flags)      spin_lock_irqsave(&minfo->lock.DAC, flags)
717 #define matroxfb_DAC_unlock_irqrestore(flags) spin_unlock_irqrestore(&minfo->lock.DAC, flags)
718 extern void matroxfb_DAC_out(const struct matrox_fb_info *minfo, int reg,
719 			     int val);
720 extern int matroxfb_DAC_in(const struct matrox_fb_info *minfo, int reg);
721 extern void matroxfb_var2my(struct fb_var_screeninfo* fvsi, struct my_timming* mt);
722 extern int matroxfb_wait_for_sync(struct matrox_fb_info *minfo, u_int32_t crtc);
723 extern int matroxfb_enable_irq(struct matrox_fb_info *minfo, int reenable);
724 
725 #ifdef MATROXFB_USE_SPINLOCKS
726 #define CRITBEGIN  spin_lock_irqsave(&minfo->lock.accel, critflags);
727 #define CRITEND	   spin_unlock_irqrestore(&minfo->lock.accel, critflags);
728 #define CRITFLAGS  unsigned long critflags;
729 #else
730 #define CRITBEGIN
731 #define CRITEND
732 #define CRITFLAGS
733 #endif
734 
735 #endif	/* __MATROXFB_H__ */
736