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1da177e4 LT |
1 | /* |
2 | * Linux/drivers/video/retz3fb.c -- RetinaZ3 frame buffer device | |
3 | * | |
4 | * Copyright (C) 1997 Jes Sorensen | |
5 | * | |
6 | * This file is based on the CyberVision64 frame buffer device and | |
7 | * the generic Cirrus Logic driver. | |
8 | * | |
9 | * cyberfb.c: Copyright (C) 1996 Martin Apel, | |
10 | * Geert Uytterhoeven | |
11 | * clgen.c: Copyright (C) 1996 Frank Neumann | |
12 | * | |
13 | * History: | |
14 | * - 22 Jan 97: Initial work | |
15 | * - 14 Feb 97: Screen initialization works somewhat, still only | |
16 | * 8-bit packed pixel is supported. | |
17 | * | |
18 | * This file is subject to the terms and conditions of the GNU General Public | |
19 | * License. See the file COPYING in the main directory of this archive | |
20 | * for more details. | |
21 | */ | |
22 | ||
23 | #include <linux/module.h> | |
24 | #include <linux/kernel.h> | |
25 | #include <linux/errno.h> | |
26 | #include <linux/string.h> | |
27 | #include <linux/mm.h> | |
28 | #include <linux/tty.h> | |
29 | #include <linux/slab.h> | |
30 | #include <linux/delay.h> | |
31 | #include <linux/fb.h> | |
32 | #include <linux/zorro.h> | |
33 | #include <linux/init.h> | |
34 | ||
35 | #include <asm/uaccess.h> | |
36 | #include <asm/system.h> | |
37 | #include <asm/irq.h> | |
38 | #include <asm/pgtable.h> | |
39 | #include <asm/io.h> | |
40 | ||
41 | #include <video/fbcon.h> | |
42 | #include <video/fbcon-cfb8.h> | |
43 | #include <video/fbcon-cfb16.h> | |
44 | ||
45 | #include "retz3fb.h" | |
46 | ||
47 | /* #define DEBUG if(1) */ | |
48 | #define DEBUG if(0) | |
49 | ||
50 | /* | |
51 | * Reserve space for one pattern line. | |
52 | * | |
53 | * For the time being we only support 4MB boards! | |
54 | */ | |
55 | ||
56 | #define PAT_MEM_SIZE 16*3 | |
57 | #define PAT_MEM_OFF (4*1024*1024 - PAT_MEM_SIZE) | |
58 | ||
59 | struct retz3fb_par { | |
60 | int xres; | |
61 | int yres; | |
62 | int xres_vir; | |
63 | int yres_vir; | |
64 | int xoffset; | |
65 | int yoffset; | |
66 | int bpp; | |
67 | ||
68 | struct fb_bitfield red; | |
69 | struct fb_bitfield green; | |
70 | struct fb_bitfield blue; | |
71 | struct fb_bitfield transp; | |
72 | ||
73 | int pixclock; | |
74 | int left_margin; /* time from sync to picture */ | |
75 | int right_margin; /* time from picture to sync */ | |
76 | int upper_margin; /* time from sync to picture */ | |
77 | int lower_margin; | |
78 | int hsync_len; /* length of horizontal sync */ | |
79 | int vsync_len; /* length of vertical sync */ | |
80 | int vmode; | |
81 | ||
82 | int accel; | |
83 | }; | |
84 | ||
85 | struct display_data { | |
86 | long h_total; /* Horizontal Total */ | |
87 | long h_sstart; /* Horizontal Sync Start */ | |
88 | long h_sstop; /* Horizontal Sync Stop */ | |
89 | long h_bstart; /* Horizontal Blank Start */ | |
90 | long h_bstop; /* Horizontal Blank Stop */ | |
91 | long h_dispend; /* Horizontal Display End */ | |
92 | long v_total; /* Vertical Total */ | |
93 | long v_sstart; /* Vertical Sync Start */ | |
94 | long v_sstop; /* Vertical Sync Stop */ | |
95 | long v_bstart; /* Vertical Blank Start */ | |
96 | long v_bstop; /* Vertical Blank Stop */ | |
97 | long v_dispend; /* Horizontal Display End */ | |
98 | }; | |
99 | ||
100 | struct retz3_fb_info { | |
101 | struct fb_info info; | |
102 | unsigned char *base; | |
103 | unsigned char *fbmem; | |
104 | unsigned long fbsize; | |
105 | volatile unsigned char *regs; | |
106 | unsigned long physfbmem; | |
107 | unsigned long physregs; | |
108 | int current_par_valid; /* set to 0 by memset */ | |
109 | int blitbusy; | |
110 | struct display disp; | |
111 | struct retz3fb_par current_par; | |
112 | unsigned char color_table [256][3]; | |
113 | }; | |
114 | ||
115 | ||
116 | static char fontname[40] __initdata = { 0 }; | |
117 | ||
118 | #define retz3info(info) ((struct retz3_fb_info *)(info)) | |
119 | #define fbinfo(info) ((struct fb_info *)(info)) | |
120 | ||
121 | ||
122 | /* | |
123 | * Frame Buffer Name | |
124 | */ | |
125 | ||
126 | static char retz3fb_name[16] = "RetinaZ3"; | |
127 | ||
128 | ||
129 | /* | |
130 | * A small info on how to convert XFree86 timing values into fb | |
131 | * timings - by Frank Neumann: | |
132 | * | |
133 | An XFree86 mode line consists of the following fields: | |
134 | "800x600" 50 800 856 976 1040 600 637 643 666 | |
135 | < name > DCF HR SH1 SH2 HFL VR SV1 SV2 VFL | |
136 | ||
137 | The fields in the fb_var_screeninfo structure are: | |
138 | unsigned long pixclock; * pixel clock in ps (pico seconds) * | |
139 | unsigned long left_margin; * time from sync to picture * | |
140 | unsigned long right_margin; * time from picture to sync * | |
141 | unsigned long upper_margin; * time from sync to picture * | |
142 | unsigned long lower_margin; | |
143 | unsigned long hsync_len; * length of horizontal sync * | |
144 | unsigned long vsync_len; * length of vertical sync * | |
145 | ||
146 | 1) Pixelclock: | |
147 | xfree: in MHz | |
148 | fb: In Picoseconds (ps) | |
149 | ||
150 | pixclock = 1000000 / DCF | |
151 | ||
152 | 2) horizontal timings: | |
153 | left_margin = HFL - SH2 | |
154 | right_margin = SH1 - HR | |
155 | hsync_len = SH2 - SH1 | |
156 | ||
157 | 3) vertical timings: | |
158 | upper_margin = VFL - SV2 | |
159 | lower_margin = SV1 - VR | |
160 | vsync_len = SV2 - SV1 | |
161 | ||
162 | Good examples for VESA timings can be found in the XFree86 source tree, | |
163 | under "programs/Xserver/hw/xfree86/doc/modeDB.txt". | |
164 | */ | |
165 | ||
166 | /* | |
167 | * Predefined Video Modes | |
168 | */ | |
169 | ||
170 | static struct { | |
171 | const char *name; | |
172 | struct fb_var_screeninfo var; | |
173 | } retz3fb_predefined[] __initdata = { | |
174 | /* | |
175 | * NB: it is very important to adjust the pixel-clock to the color-depth. | |
176 | */ | |
177 | ||
178 | { | |
179 | "640x480", { /* 640x480, 8 bpp */ | |
180 | 640, 480, 640, 480, 0, 0, 8, 0, | |
181 | {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0}, | |
182 | 0, 0, -1, -1, FB_ACCEL_NONE, 39722, 48, 16, 33, 10, 96, 2, | |
183 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,FB_VMODE_NONINTERLACED | |
184 | } | |
185 | }, | |
186 | /* | |
187 | ModeLine "800x600" 36 800 824 896 1024 600 601 603 625 | |
188 | < name > DCF HR SH1 SH2 HFL VR SV1 SV2 VFL | |
189 | */ | |
190 | { | |
191 | "800x600", { /* 800x600, 8 bpp */ | |
192 | 800, 600, 800, 600, 0, 0, 8, 0, | |
193 | {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0}, | |
194 | 0, 0, -1, -1, FB_ACCELF_TEXT, 27778, 64, 24, 22, 1, 120, 2, | |
195 | FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED | |
196 | } | |
197 | }, | |
198 | { | |
199 | "800x600-60", { /* 800x600, 8 bpp */ | |
200 | 800, 600, 800, 600, 0, 0, 8, 0, | |
201 | {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0}, | |
202 | 0, 0, -1, -1, FB_ACCELF_TEXT, 25000, 88, 40, 23, 1, 128, 4, | |
203 | FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED | |
204 | } | |
205 | }, | |
206 | { | |
207 | "800x600-70", { /* 800x600, 8 bpp */ | |
208 | 800, 600, 800, 600, 0, 0, 8, 0, | |
209 | {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0}, | |
210 | 0, 0, -1, -1, FB_ACCELF_TEXT, 22272, 40, 24, 15, 9, 144, 12, | |
211 | FB_SYNC_COMP_HIGH_ACT, FB_VMODE_NONINTERLACED | |
212 | } | |
213 | }, | |
214 | /* | |
215 | ModeLine "1024x768i" 45 1024 1064 1224 1264 768 777 785 817 interlace | |
216 | < name > DCF HR SH1 SH2 HFL VR SV1 SV2 VFL | |
217 | */ | |
218 | { | |
219 | "1024x768i", { /* 1024x768, 8 bpp, interlaced */ | |
220 | 1024, 768, 1024, 768, 0, 0, 8, 0, | |
221 | {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0}, | |
222 | 0, 0, -1, -1, FB_ACCELF_TEXT, 22222, 40, 40, 32, 9, 160, 8, | |
223 | FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_INTERLACED | |
224 | } | |
225 | }, | |
226 | { | |
227 | "1024x768", { | |
228 | 1024, 768, 1024, 768, 0, 0, 8, 0, | |
229 | {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0}, | |
230 | 0, 0, -1, -1, FB_ACCEL_NONE, 12500, 92, 112, 31, 2, 204, 4, | |
231 | FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED | |
232 | } | |
233 | }, | |
234 | { | |
235 | "640x480-16", { /* 640x480, 16 bpp */ | |
236 | 640, 480, 640, 480, 0, 0, 16, 0, | |
237 | {11, 5, 0}, {5, 6, 0}, {0, 5, 0}, {0, 0, 0}, | |
238 | 0, 0, -1, -1, 0, 38461/2, 28, 32, 12, 10, 96, 2, | |
239 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,FB_VMODE_NONINTERLACED | |
240 | } | |
241 | }, | |
242 | { | |
243 | "640x480-24", { /* 640x480, 24 bpp */ | |
244 | 640, 480, 640, 480, 0, 0, 24, 0, | |
245 | {8, 8, 8}, {8, 8, 8}, {8, 8, 8}, {0, 0, 0}, | |
246 | 0, 0, -1, -1, 0, 38461/3, 28, 32, 12, 10, 96, 2, | |
247 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,FB_VMODE_NONINTERLACED | |
248 | } | |
249 | }, | |
250 | }; | |
251 | ||
252 | ||
253 | #define NUM_TOTAL_MODES ARRAY_SIZE(retz3fb_predefined) | |
254 | ||
255 | static struct fb_var_screeninfo retz3fb_default; | |
256 | ||
257 | static int z3fb_inverse = 0; | |
258 | static int z3fb_mode __initdata = 0; | |
259 | ||
260 | ||
261 | /* | |
262 | * Interface used by the world | |
263 | */ | |
264 | ||
265 | int retz3fb_setup(char *options); | |
266 | ||
267 | static int retz3fb_get_fix(struct fb_fix_screeninfo *fix, int con, | |
268 | struct fb_info *info); | |
269 | static int retz3fb_get_var(struct fb_var_screeninfo *var, int con, | |
270 | struct fb_info *info); | |
271 | static int retz3fb_set_var(struct fb_var_screeninfo *var, int con, | |
272 | struct fb_info *info); | |
273 | static int retz3fb_get_cmap(struct fb_cmap *cmap, int kspc, int con, | |
274 | struct fb_info *info); | |
275 | static int retz3fb_setcolreg(unsigned int regno, unsigned int red, | |
276 | unsigned int green, unsigned int blue, | |
277 | unsigned int transp, struct fb_info *info); | |
278 | static int retz3fb_blank(int blank, struct fb_info *info); | |
279 | ||
280 | ||
281 | /* | |
282 | * Interface to the low level console driver | |
283 | */ | |
284 | ||
285 | int retz3fb_init(void); | |
286 | static int z3fb_switch(int con, struct fb_info *info); | |
287 | static int z3fb_updatevar(int con, struct fb_info *info); | |
288 | ||
289 | ||
290 | /* | |
291 | * Text console acceleration | |
292 | */ | |
293 | ||
294 | #ifdef FBCON_HAS_CFB8 | |
295 | static struct display_switch fbcon_retz3_8; | |
296 | #endif | |
297 | ||
298 | ||
299 | /* | |
300 | * Accelerated Functions used by the low level console driver | |
301 | */ | |
302 | ||
303 | static void retz3_bitblt(struct display *p, | |
304 | unsigned short curx, unsigned short cury, unsigned | |
305 | short destx, unsigned short desty, unsigned short | |
306 | width, unsigned short height, unsigned short cmd, | |
307 | unsigned short mask); | |
308 | ||
309 | /* | |
310 | * Hardware Specific Routines | |
311 | */ | |
312 | ||
313 | static int retz3_encode_fix(struct fb_info *info, | |
314 | struct fb_fix_screeninfo *fix, | |
315 | struct retz3fb_par *par); | |
316 | static int retz3_decode_var(struct fb_var_screeninfo *var, | |
317 | struct retz3fb_par *par); | |
318 | static int retz3_encode_var(struct fb_var_screeninfo *var, | |
319 | struct retz3fb_par *par); | |
320 | static int retz3_getcolreg(unsigned int regno, unsigned int *red, | |
321 | unsigned int *green, unsigned int *blue, | |
322 | unsigned int *transp, struct fb_info *info); | |
323 | ||
324 | /* | |
325 | * Internal routines | |
326 | */ | |
327 | ||
328 | static void retz3fb_get_par(struct fb_info *info, struct retz3fb_par *par); | |
329 | static void retz3fb_set_par(struct fb_info *info, struct retz3fb_par *par); | |
330 | static int do_fb_set_var(struct fb_info *info, | |
331 | struct fb_var_screeninfo *var, int isactive); | |
332 | static void retz3fb_set_disp(int con, struct fb_info *info); | |
333 | static int get_video_mode(const char *name); | |
334 | ||
335 | ||
336 | /* -------------------- Hardware specific routines ------------------------- */ | |
337 | ||
338 | static unsigned short find_fq(unsigned int freq) | |
339 | { | |
340 | unsigned long f; | |
341 | long tmp; | |
342 | long prev = 0x7fffffff; | |
343 | long n2, n1 = 3; | |
344 | unsigned long m; | |
345 | unsigned short res = 0; | |
346 | ||
347 | if (freq <= 31250000) | |
348 | n2 = 3; | |
349 | else if (freq <= 62500000) | |
350 | n2 = 2; | |
351 | else if (freq <= 125000000) | |
352 | n2 = 1; | |
353 | else if (freq <= 250000000) | |
354 | n2 = 0; | |
355 | else | |
356 | return 0; | |
357 | ||
358 | ||
359 | do { | |
360 | f = freq >> (10 - n2); | |
361 | ||
362 | m = (f * n1) / (14318180/1024); | |
363 | ||
364 | if (m > 129) | |
365 | break; | |
366 | ||
367 | tmp = (((m * 14318180) >> n2) / n1) - freq; | |
368 | if (tmp < 0) | |
369 | tmp = -tmp; | |
370 | ||
371 | if (tmp < prev) { | |
372 | prev = tmp; | |
373 | res = (((n2 << 5) | (n1-2)) << 8) | (m-2); | |
374 | } | |
375 | ||
376 | } while ( (++n1) <= 21); | |
377 | ||
378 | return res; | |
379 | } | |
380 | ||
381 | ||
382 | static int retz3_set_video(struct fb_info *info, | |
383 | struct fb_var_screeninfo *var, | |
384 | struct retz3fb_par *par) | |
385 | { | |
386 | volatile unsigned char *regs = retz3info(info)->regs; | |
387 | unsigned int freq; | |
388 | ||
389 | int xres, hfront, hsync, hback; | |
390 | int yres, vfront, vsync, vback; | |
391 | unsigned char tmp; | |
392 | unsigned short best_freq; | |
393 | struct display_data data; | |
394 | ||
395 | short clocksel = 0; /* Apparantly this is always zero */ | |
396 | ||
397 | int bpp = var->bits_per_pixel; | |
398 | ||
399 | /* | |
400 | * XXX | |
401 | */ | |
402 | if (bpp == 24) | |
403 | return 0; | |
404 | ||
405 | if ((bpp != 8) && (bpp != 16) && (bpp != 24)) | |
406 | return -EFAULT; | |
407 | ||
408 | par->xoffset = 0; | |
409 | par->yoffset = 0; | |
410 | ||
411 | xres = var->xres * bpp / 4; | |
412 | hfront = var->right_margin * bpp / 4; | |
413 | hsync = var->hsync_len * bpp / 4; | |
414 | hback = var->left_margin * bpp / 4; | |
415 | ||
416 | if (var->vmode & FB_VMODE_DOUBLE) | |
417 | { | |
418 | yres = var->yres * 2; | |
419 | vfront = var->lower_margin * 2; | |
420 | vsync = var->vsync_len * 2; | |
421 | vback = var->upper_margin * 2; | |
422 | } | |
423 | else if (var->vmode & FB_VMODE_INTERLACED) | |
424 | { | |
425 | yres = (var->yres + 1) / 2; | |
426 | vfront = (var->lower_margin + 1) / 2; | |
427 | vsync = (var->vsync_len + 1) / 2; | |
428 | vback = (var->upper_margin + 1) / 2; | |
429 | } | |
430 | else | |
431 | { | |
432 | yres = var->yres; /* -1 ? */ | |
433 | vfront = var->lower_margin; | |
434 | vsync = var->vsync_len; | |
435 | vback = var->upper_margin; | |
436 | } | |
437 | ||
438 | data.h_total = (hback / 8) + (xres / 8) | |
439 | + (hfront / 8) + (hsync / 8) - 1 /* + 1 */; | |
440 | data.h_dispend = ((xres + bpp - 1)/ 8) - 1; | |
441 | data.h_bstart = xres / 8 - 1 /* + 1 */; | |
442 | ||
443 | data.h_bstop = data.h_total+1 + 2 + 1; | |
444 | data.h_sstart = (xres / 8) + (hfront / 8) + 1; | |
445 | data.h_sstop = (xres / 8) + (hfront / 8) + (hsync / 8) + 1; | |
446 | ||
447 | data.v_total = yres + vfront + vsync + vback - 1; | |
448 | ||
449 | data.v_dispend = yres - 1; | |
450 | data.v_bstart = yres - 1; | |
451 | ||
452 | data.v_bstop = data.v_total; | |
453 | data.v_sstart = yres + vfront - 1 - 2; | |
454 | data.v_sstop = yres + vfront + vsync - 1; | |
455 | ||
456 | #if 0 /* testing */ | |
457 | ||
458 | printk("HBS: %i\n", data.h_bstart); | |
459 | printk("HSS: %i\n", data.h_sstart); | |
460 | printk("HSE: %i\n", data.h_sstop); | |
461 | printk("HBE: %i\n", data.h_bstop); | |
462 | printk("HT: %i\n", data.h_total); | |
463 | ||
464 | printk("hsync: %i\n", hsync); | |
465 | printk("hfront: %i\n", hfront); | |
466 | printk("hback: %i\n", hback); | |
467 | ||
468 | printk("VBS: %i\n", data.v_bstart); | |
469 | printk("VSS: %i\n", data.v_sstart); | |
470 | printk("VSE: %i\n", data.v_sstop); | |
471 | printk("VBE: %i\n", data.v_bstop); | |
472 | printk("VT: %i\n", data.v_total); | |
473 | ||
474 | printk("vsync: %i\n", vsync); | |
475 | printk("vfront: %i\n", vfront); | |
476 | printk("vback: %i\n", vback); | |
477 | #endif | |
478 | ||
479 | if (data.v_total >= 1024) | |
480 | printk(KERN_ERR "MAYDAY: v_total >= 1024; bailing out!\n"); | |
481 | ||
482 | reg_w(regs, GREG_MISC_OUTPUT_W, 0xe3 | ((clocksel & 3) * 0x04)); | |
483 | reg_w(regs, GREG_FEATURE_CONTROL_W, 0x00); | |
484 | ||
485 | seq_w(regs, SEQ_RESET, 0x00); | |
486 | seq_w(regs, SEQ_RESET, 0x03); /* reset sequencer logic */ | |
487 | ||
488 | /* | |
489 | * CLOCKING_MODE bits: | |
490 | * 2: This one is only set for certain text-modes, wonder if | |
491 | * it may be for EGA-lines? (it was referred to as CLKDIV2) | |
492 | * (The CL drivers sets it to 0x21 with the comment: | |
493 | * FullBandwidth (video off) and 8/9 dot clock) | |
494 | */ | |
495 | seq_w(regs, SEQ_CLOCKING_MODE, 0x01 | 0x00 /* 0x08 */); | |
496 | ||
497 | seq_w(regs, SEQ_MAP_MASK, 0x0f); /* enable writing to plane 0-3 */ | |
498 | seq_w(regs, SEQ_CHAR_MAP_SELECT, 0x00); /* doesn't matter in gfx-mode */ | |
499 | seq_w(regs, SEQ_MEMORY_MODE, 0x06); /* CL driver says 0x0e for 256 col mode*/ | |
500 | seq_w(regs, SEQ_RESET, 0x01); | |
501 | seq_w(regs, SEQ_RESET, 0x03); | |
502 | ||
503 | seq_w(regs, SEQ_EXTENDED_ENABLE, 0x05); | |
504 | ||
505 | seq_w(regs, SEQ_CURSOR_CONTROL, 0x00); /* disable cursor */ | |
506 | seq_w(regs, SEQ_PRIM_HOST_OFF_HI, 0x00); | |
507 | seq_w(regs, SEQ_PRIM_HOST_OFF_HI, 0x00); | |
508 | seq_w(regs, SEQ_LINEAR_0, 0x4a); | |
509 | seq_w(regs, SEQ_LINEAR_1, 0x00); | |
510 | ||
511 | seq_w(regs, SEQ_SEC_HOST_OFF_HI, 0x00); | |
512 | seq_w(regs, SEQ_SEC_HOST_OFF_LO, 0x00); | |
513 | seq_w(regs, SEQ_EXTENDED_MEM_ENA, 0x3 | 0x4 | 0x10 | 0x40); | |
514 | ||
515 | /* | |
516 | * The lower 4 bits (0-3) are used to set the font-width for | |
517 | * text-mode - DON'T try to set this for gfx-mode. | |
518 | */ | |
519 | seq_w(regs, SEQ_EXT_CLOCK_MODE, 0x10); | |
520 | seq_w(regs, SEQ_EXT_VIDEO_ADDR, 0x03); | |
521 | ||
522 | /* | |
523 | * Extended Pixel Control: | |
524 | * bit 0: text-mode=0, gfx-mode=1 (Graphics Byte ?) | |
525 | * bit 1: (Packed/Nibble Pixel Format ?) | |
526 | * bit 4-5: depth, 0=1-8bpp, 1=9-16bpp, 2=17-24bpp | |
527 | */ | |
528 | seq_w(regs, SEQ_EXT_PIXEL_CNTL, 0x01 | (((bpp / 8) - 1) << 4)); | |
529 | ||
530 | seq_w(regs, SEQ_BUS_WIDTH_FEEDB, 0x04); | |
531 | seq_w(regs, SEQ_COLOR_EXP_WFG, 0x01); | |
532 | seq_w(regs, SEQ_COLOR_EXP_WBG, 0x00); | |
533 | seq_w(regs, SEQ_EXT_RW_CONTROL, 0x00); | |
534 | seq_w(regs, SEQ_MISC_FEATURE_SEL, (0x51 | (clocksel & 8))); | |
535 | seq_w(regs, SEQ_COLOR_KEY_CNTL, 0x40); | |
536 | seq_w(regs, SEQ_COLOR_KEY_MATCH0, 0x00); | |
537 | seq_w(regs, SEQ_COLOR_KEY_MATCH1, 0x00); | |
538 | seq_w(regs, SEQ_COLOR_KEY_MATCH2, 0x00); | |
539 | seq_w(regs, SEQ_CRC_CONTROL, 0x00); | |
540 | seq_w(regs, SEQ_PERF_SELECT, 0x10); | |
541 | seq_w(regs, SEQ_ACM_APERTURE_1, 0x00); | |
542 | seq_w(regs, SEQ_ACM_APERTURE_2, 0x30); | |
543 | seq_w(regs, SEQ_ACM_APERTURE_3, 0x00); | |
544 | seq_w(regs, SEQ_MEMORY_MAP_CNTL, 0x03); | |
545 | ||
546 | ||
547 | /* unlock register CRT0..CRT7 */ | |
548 | crt_w(regs, CRT_END_VER_RETR, (data.v_sstop & 0x0f) | 0x20); | |
549 | ||
550 | /* Zuerst zu schreibende Werte nur per printk ausgeben */ | |
551 | DEBUG printk("CRT_HOR_TOTAL: %ld\n", data.h_total); | |
552 | crt_w(regs, CRT_HOR_TOTAL, data.h_total & 0xff); | |
553 | ||
554 | DEBUG printk("CRT_HOR_DISP_ENA_END: %ld\n", data.h_dispend); | |
555 | crt_w(regs, CRT_HOR_DISP_ENA_END, (data.h_dispend) & 0xff); | |
556 | ||
557 | DEBUG printk("CRT_START_HOR_BLANK: %ld\n", data.h_bstart); | |
558 | crt_w(regs, CRT_START_HOR_BLANK, data.h_bstart & 0xff); | |
559 | ||
560 | DEBUG printk("CRT_END_HOR_BLANK: 128+%ld\n", data.h_bstop % 32); | |
561 | crt_w(regs, CRT_END_HOR_BLANK, 0x80 | (data.h_bstop & 0x1f)); | |
562 | ||
563 | DEBUG printk("CRT_START_HOR_RETR: %ld\n", data.h_sstart); | |
564 | crt_w(regs, CRT_START_HOR_RETR, data.h_sstart & 0xff); | |
565 | ||
566 | tmp = (data.h_sstop & 0x1f); | |
567 | if (data.h_bstop & 0x20) | |
568 | tmp |= 0x80; | |
569 | DEBUG printk("CRT_END_HOR_RETR: %d\n", tmp); | |
570 | crt_w(regs, CRT_END_HOR_RETR, tmp); | |
571 | ||
572 | DEBUG printk("CRT_VER_TOTAL: %ld\n", data.v_total & 0xff); | |
573 | crt_w(regs, CRT_VER_TOTAL, (data.v_total & 0xff)); | |
574 | ||
575 | tmp = 0x10; /* LineCompare bit #9 */ | |
576 | if (data.v_total & 256) | |
577 | tmp |= 0x01; | |
578 | if (data.v_dispend & 256) | |
579 | tmp |= 0x02; | |
580 | if (data.v_sstart & 256) | |
581 | tmp |= 0x04; | |
582 | if (data.v_bstart & 256) | |
583 | tmp |= 0x08; | |
584 | if (data.v_total & 512) | |
585 | tmp |= 0x20; | |
586 | if (data.v_dispend & 512) | |
587 | tmp |= 0x40; | |
588 | if (data.v_sstart & 512) | |
589 | tmp |= 0x80; | |
590 | DEBUG printk("CRT_OVERFLOW: %d\n", tmp); | |
591 | crt_w(regs, CRT_OVERFLOW, tmp); | |
592 | ||
593 | crt_w(regs, CRT_PRESET_ROW_SCAN, 0x00); /* not CL !!! */ | |
594 | ||
595 | tmp = 0x40; /* LineCompare bit #8 */ | |
596 | if (data.v_bstart & 512) | |
597 | tmp |= 0x20; | |
598 | if (var->vmode & FB_VMODE_DOUBLE) | |
599 | tmp |= 0x80; | |
600 | DEBUG printk("CRT_MAX_SCAN_LINE: %d\n", tmp); | |
601 | crt_w(regs, CRT_MAX_SCAN_LINE, tmp); | |
602 | ||
603 | crt_w(regs, CRT_CURSOR_START, 0x00); | |
604 | crt_w(regs, CRT_CURSOR_END, 8 & 0x1f); /* font height */ | |
605 | ||
606 | crt_w(regs, CRT_START_ADDR_HIGH, 0x00); | |
607 | crt_w(regs, CRT_START_ADDR_LOW, 0x00); | |
608 | ||
609 | crt_w(regs, CRT_CURSOR_LOC_HIGH, 0x00); | |
610 | crt_w(regs, CRT_CURSOR_LOC_LOW, 0x00); | |
611 | ||
612 | DEBUG printk("CRT_START_VER_RETR: %ld\n", data.v_sstart & 0xff); | |
613 | crt_w(regs, CRT_START_VER_RETR, (data.v_sstart & 0xff)); | |
614 | ||
615 | #if 1 | |
616 | /* 5 refresh cycles per scanline */ | |
617 | DEBUG printk("CRT_END_VER_RETR: 64+32+%ld\n", data.v_sstop % 16); | |
618 | crt_w(regs, CRT_END_VER_RETR, ((data.v_sstop & 0x0f) | 0x40 | 0x20)); | |
619 | #else | |
620 | DEBUG printk("CRT_END_VER_RETR: 128+32+%ld\n", data.v_sstop % 16); | |
621 | crt_w(regs, CRT_END_VER_RETR, ((data.v_sstop & 0x0f) | 128 | 32)); | |
622 | #endif | |
623 | DEBUG printk("CRT_VER_DISP_ENA_END: %ld\n", data.v_dispend & 0xff); | |
624 | crt_w(regs, CRT_VER_DISP_ENA_END, (data.v_dispend & 0xff)); | |
625 | ||
626 | DEBUG printk("CRT_START_VER_BLANK: %ld\n", data.v_bstart & 0xff); | |
627 | crt_w(regs, CRT_START_VER_BLANK, (data.v_bstart & 0xff)); | |
628 | ||
629 | DEBUG printk("CRT_END_VER_BLANK: %ld\n", data.v_bstop & 0xff); | |
630 | crt_w(regs, CRT_END_VER_BLANK, (data.v_bstop & 0xff)); | |
631 | ||
632 | DEBUG printk("CRT_MODE_CONTROL: 0xe3\n"); | |
633 | crt_w(regs, CRT_MODE_CONTROL, 0xe3); | |
634 | ||
635 | DEBUG printk("CRT_LINE_COMPARE: 0xff\n"); | |
636 | crt_w(regs, CRT_LINE_COMPARE, 0xff); | |
637 | ||
638 | tmp = (var->xres_virtual / 8) * (bpp / 8); | |
639 | crt_w(regs, CRT_OFFSET, tmp); | |
640 | ||
641 | crt_w(regs, CRT_UNDERLINE_LOC, 0x07); /* probably font-height - 1 */ | |
642 | ||
643 | tmp = 0x20; /* Enable extended end bits */ | |
644 | if (data.h_total & 0x100) | |
645 | tmp |= 0x01; | |
646 | if ((data.h_dispend) & 0x100) | |
647 | tmp |= 0x02; | |
648 | if (data.h_bstart & 0x100) | |
649 | tmp |= 0x04; | |
650 | if (data.h_sstart & 0x100) | |
651 | tmp |= 0x08; | |
652 | if (var->vmode & FB_VMODE_INTERLACED) | |
653 | tmp |= 0x10; | |
654 | DEBUG printk("CRT_EXT_HOR_TIMING1: %d\n", tmp); | |
655 | crt_w(regs, CRT_EXT_HOR_TIMING1, tmp); | |
656 | ||
657 | tmp = 0x00; | |
658 | if (((var->xres_virtual / 8) * (bpp / 8)) & 0x100) | |
659 | tmp |= 0x10; | |
660 | crt_w(regs, CRT_EXT_START_ADDR, tmp); | |
661 | ||
662 | tmp = 0x00; | |
663 | if (data.h_total & 0x200) | |
664 | tmp |= 0x01; | |
665 | if ((data.h_dispend) & 0x200) | |
666 | tmp |= 0x02; | |
667 | if (data.h_bstart & 0x200) | |
668 | tmp |= 0x04; | |
669 | if (data.h_sstart & 0x200) | |
670 | tmp |= 0x08; | |
671 | tmp |= ((data.h_bstop & 0xc0) >> 2); | |
672 | tmp |= ((data.h_sstop & 0x60) << 1); | |
673 | crt_w(regs, CRT_EXT_HOR_TIMING2, tmp); | |
674 | DEBUG printk("CRT_EXT_HOR_TIMING2: %d\n", tmp); | |
675 | ||
676 | tmp = 0x10; /* Line compare bit 10 */ | |
677 | if (data.v_total & 0x400) | |
678 | tmp |= 0x01; | |
679 | if ((data.v_dispend) & 0x400) | |
680 | tmp |= 0x02; | |
681 | if (data.v_bstart & 0x400) | |
682 | tmp |= 0x04; | |
683 | if (data.v_sstart & 0x400) | |
684 | tmp |= 0x08; | |
685 | tmp |= ((data.v_bstop & 0x300) >> 3); | |
686 | if (data.v_sstop & 0x10) | |
687 | tmp |= 0x80; | |
688 | crt_w(regs, CRT_EXT_VER_TIMING, tmp); | |
689 | DEBUG printk("CRT_EXT_VER_TIMING: %d\n", tmp); | |
690 | ||
691 | crt_w(regs, CRT_MONITOR_POWER, 0x00); | |
692 | ||
693 | /* | |
694 | * Convert from ps to Hz. | |
695 | */ | |
696 | freq = 2000000000 / var->pixclock; | |
697 | freq = freq * 500; | |
698 | ||
699 | best_freq = find_fq(freq); | |
700 | pll_w(regs, 0x02, best_freq); | |
701 | best_freq = find_fq(61000000); | |
702 | pll_w(regs, 0x0a, best_freq); | |
703 | pll_w(regs, 0x0e, 0x22); | |
704 | ||
705 | gfx_w(regs, GFX_SET_RESET, 0x00); | |
706 | gfx_w(regs, GFX_ENABLE_SET_RESET, 0x00); | |
707 | gfx_w(regs, GFX_COLOR_COMPARE, 0x00); | |
708 | gfx_w(regs, GFX_DATA_ROTATE, 0x00); | |
709 | gfx_w(regs, GFX_READ_MAP_SELECT, 0x00); | |
710 | gfx_w(regs, GFX_GRAPHICS_MODE, 0x00); | |
711 | gfx_w(regs, GFX_MISC, 0x05); | |
712 | gfx_w(regs, GFX_COLOR_XCARE, 0x0f); | |
713 | gfx_w(regs, GFX_BITMASK, 0xff); | |
714 | ||
715 | reg_r(regs, ACT_ADDRESS_RESET); | |
716 | attr_w(regs, ACT_PALETTE0 , 0x00); | |
717 | attr_w(regs, ACT_PALETTE1 , 0x01); | |
718 | attr_w(regs, ACT_PALETTE2 , 0x02); | |
719 | attr_w(regs, ACT_PALETTE3 , 0x03); | |
720 | attr_w(regs, ACT_PALETTE4 , 0x04); | |
721 | attr_w(regs, ACT_PALETTE5 , 0x05); | |
722 | attr_w(regs, ACT_PALETTE6 , 0x06); | |
723 | attr_w(regs, ACT_PALETTE7 , 0x07); | |
724 | attr_w(regs, ACT_PALETTE8 , 0x08); | |
725 | attr_w(regs, ACT_PALETTE9 , 0x09); | |
726 | attr_w(regs, ACT_PALETTE10, 0x0a); | |
727 | attr_w(regs, ACT_PALETTE11, 0x0b); | |
728 | attr_w(regs, ACT_PALETTE12, 0x0c); | |
729 | attr_w(regs, ACT_PALETTE13, 0x0d); | |
730 | attr_w(regs, ACT_PALETTE14, 0x0e); | |
731 | attr_w(regs, ACT_PALETTE15, 0x0f); | |
732 | reg_r(regs, ACT_ADDRESS_RESET); | |
733 | ||
734 | attr_w(regs, ACT_ATTR_MODE_CNTL, 0x09); /* 0x01 for CL */ | |
735 | ||
736 | attr_w(regs, ACT_OVERSCAN_COLOR, 0x00); | |
737 | attr_w(regs, ACT_COLOR_PLANE_ENA, 0x0f); | |
738 | attr_w(regs, ACT_HOR_PEL_PANNING, 0x00); | |
739 | attr_w(regs, ACT_COLOR_SELECT, 0x00); | |
740 | ||
741 | reg_r(regs, ACT_ADDRESS_RESET); | |
742 | reg_w(regs, ACT_DATA, 0x20); | |
743 | ||
744 | reg_w(regs, VDAC_MASK, 0xff); | |
745 | ||
746 | /* | |
747 | * Extended palette addressing ??? | |
748 | */ | |
749 | switch (bpp){ | |
750 | case 8: | |
751 | reg_w(regs, 0x83c6, 0x00); | |
752 | break; | |
753 | case 16: | |
754 | reg_w(regs, 0x83c6, 0x60); | |
755 | break; | |
756 | case 24: | |
757 | reg_w(regs, 0x83c6, 0xe0); | |
758 | break; | |
759 | default: | |
760 | printk(KERN_INFO "Illegal color-depth: %i\n", bpp); | |
761 | } | |
762 | ||
763 | reg_w(regs, VDAC_ADDRESS, 0x00); | |
764 | ||
765 | seq_w(regs, SEQ_MAP_MASK, 0x0f ); | |
766 | ||
767 | return 0; | |
768 | } | |
769 | ||
770 | ||
771 | /* | |
772 | * This function should fill in the `fix' structure based on the | |
773 | * values in the `par' structure. | |
774 | */ | |
775 | ||
776 | static int retz3_encode_fix(struct fb_info *info, | |
777 | struct fb_fix_screeninfo *fix, | |
778 | struct retz3fb_par *par) | |
779 | { | |
780 | struct retz3_fb_info *zinfo = retz3info(info); | |
781 | ||
782 | memset(fix, 0, sizeof(struct fb_fix_screeninfo)); | |
783 | strcpy(fix->id, retz3fb_name); | |
784 | fix->smem_start = zinfo->physfbmem; | |
785 | fix->smem_len = zinfo->fbsize; | |
786 | fix->mmio_start = zinfo->physregs; | |
787 | fix->mmio_len = 0x00c00000; | |
788 | ||
789 | fix->type = FB_TYPE_PACKED_PIXELS; | |
790 | fix->type_aux = 0; | |
791 | if (par->bpp == 8) | |
792 | fix->visual = FB_VISUAL_PSEUDOCOLOR; | |
793 | else | |
794 | fix->visual = FB_VISUAL_TRUECOLOR; | |
795 | ||
796 | fix->xpanstep = 0; | |
797 | fix->ypanstep = 0; | |
798 | fix->ywrapstep = 0; | |
799 | fix->line_length = 0; | |
800 | ||
801 | fix->accel = FB_ACCEL_NCR_77C32BLT; | |
802 | ||
803 | return 0; | |
804 | } | |
805 | ||
806 | ||
807 | /* | |
808 | * Get the video params out of `var'. If a value doesn't fit, round | |
809 | * it up, if it's too big, return -EINVAL. | |
810 | */ | |
811 | ||
812 | static int retz3_decode_var(struct fb_var_screeninfo *var, | |
813 | struct retz3fb_par *par) | |
814 | { | |
815 | par->xres = var->xres; | |
816 | par->yres = var->yres; | |
817 | par->xres_vir = var->xres_virtual; | |
818 | par->yres_vir = var->yres_virtual; | |
819 | par->bpp = var->bits_per_pixel; | |
820 | par->pixclock = var->pixclock; | |
821 | par->vmode = var->vmode; | |
822 | ||
823 | par->red = var->red; | |
824 | par->green = var->green; | |
825 | par->blue = var->blue; | |
826 | par->transp = var->transp; | |
827 | ||
828 | par->left_margin = var->left_margin; | |
829 | par->right_margin = var->right_margin; | |
830 | par->upper_margin = var->upper_margin; | |
831 | par->lower_margin = var->lower_margin; | |
832 | par->hsync_len = var->hsync_len; | |
833 | par->vsync_len = var->vsync_len; | |
834 | ||
835 | if (var->accel_flags & FB_ACCELF_TEXT) | |
836 | par->accel = FB_ACCELF_TEXT; | |
837 | else | |
838 | par->accel = 0; | |
839 | ||
840 | return 0; | |
841 | } | |
842 | ||
843 | ||
844 | /* | |
845 | * Fill the `var' structure based on the values in `par' and maybe | |
846 | * other values read out of the hardware. | |
847 | */ | |
848 | ||
849 | static int retz3_encode_var(struct fb_var_screeninfo *var, | |
850 | struct retz3fb_par *par) | |
851 | { | |
852 | memset(var, 0, sizeof(struct fb_var_screeninfo)); | |
853 | var->xres = par->xres; | |
854 | var->yres = par->yres; | |
855 | var->xres_virtual = par->xres_vir; | |
856 | var->yres_virtual = par->yres_vir; | |
857 | var->xoffset = 0; | |
858 | var->yoffset = 0; | |
859 | ||
860 | var->bits_per_pixel = par->bpp; | |
861 | var->grayscale = 0; | |
862 | ||
863 | var->red = par->red; | |
864 | var->green = par->green; | |
865 | var->blue = par->blue; | |
866 | var->transp = par->transp; | |
867 | ||
868 | var->nonstd = 0; | |
869 | var->activate = 0; | |
870 | ||
871 | var->height = -1; | |
872 | var->width = -1; | |
873 | ||
874 | var->accel_flags = (par->accel && par->bpp == 8) ? FB_ACCELF_TEXT : 0; | |
875 | ||
876 | var->pixclock = par->pixclock; | |
877 | ||
878 | var->sync = 0; /* ??? */ | |
879 | var->left_margin = par->left_margin; | |
880 | var->right_margin = par->right_margin; | |
881 | var->upper_margin = par->upper_margin; | |
882 | var->lower_margin = par->lower_margin; | |
883 | var->hsync_len = par->hsync_len; | |
884 | var->vsync_len = par->vsync_len; | |
885 | ||
886 | var->vmode = par->vmode; | |
887 | return 0; | |
888 | } | |
889 | ||
890 | ||
891 | /* | |
892 | * Set a single color register. Return != 0 for invalid regno. | |
893 | */ | |
894 | ||
895 | static int retz3fb_setcolreg(unsigned int regno, unsigned int red, | |
896 | unsigned int green, unsigned int blue, | |
897 | unsigned int transp, struct fb_info *info) | |
898 | { | |
899 | struct retz3_fb_info *zinfo = retz3info(info); | |
900 | volatile unsigned char *regs = zinfo->regs; | |
901 | ||
902 | /* We'll get to this */ | |
903 | ||
904 | if (regno > 255) | |
905 | return 1; | |
906 | ||
907 | red >>= 10; | |
908 | green >>= 10; | |
909 | blue >>= 10; | |
910 | ||
911 | zinfo->color_table[regno][0] = red; | |
912 | zinfo->color_table[regno][1] = green; | |
913 | zinfo->color_table[regno][2] = blue; | |
914 | ||
915 | reg_w(regs, VDAC_ADDRESS_W, regno); | |
916 | reg_w(regs, VDAC_DATA, red); | |
917 | reg_w(regs, VDAC_DATA, green); | |
918 | reg_w(regs, VDAC_DATA, blue); | |
919 | ||
920 | return 0; | |
921 | } | |
922 | ||
923 | ||
924 | /* | |
925 | * Read a single color register and split it into | |
926 | * colors/transparent. Return != 0 for invalid regno. | |
927 | */ | |
928 | ||
929 | static int retz3_getcolreg(unsigned int regno, unsigned int *red, | |
930 | unsigned int *green, unsigned int *blue, | |
931 | unsigned int *transp, struct fb_info *info) | |
932 | { | |
933 | struct retz3_fb_info *zinfo = retz3info(info); | |
934 | int t; | |
935 | ||
936 | if (regno > 255) | |
937 | return 1; | |
938 | t = zinfo->color_table[regno][0]; | |
939 | *red = (t<<10) | (t<<4) | (t>>2); | |
940 | t = zinfo->color_table[regno][1]; | |
941 | *green = (t<<10) | (t<<4) | (t>>2); | |
942 | t = zinfo->color_table[regno][2]; | |
943 | *blue = (t<<10) | (t<<4) | (t>>2); | |
944 | *transp = 0; | |
945 | return 0; | |
946 | } | |
947 | ||
948 | ||
949 | static inline void retz3_busy(struct display *p) | |
950 | { | |
951 | struct retz3_fb_info *zinfo = retz3info(p->fb_info); | |
952 | volatile unsigned char *acm = zinfo->base + ACM_OFFSET; | |
953 | unsigned char blt_status; | |
954 | ||
955 | if (zinfo->blitbusy) { | |
956 | do{ | |
957 | blt_status = *((acm) + (ACM_START_STATUS + 2)); | |
958 | }while ((blt_status & 1) == 0); | |
959 | zinfo->blitbusy = 0; | |
960 | } | |
961 | } | |
962 | ||
963 | ||
964 | static void retz3_bitblt (struct display *p, | |
965 | unsigned short srcx, unsigned short srcy, | |
966 | unsigned short destx, unsigned short desty, | |
967 | unsigned short width, unsigned short height, | |
968 | unsigned short cmd, unsigned short mask) | |
969 | { | |
970 | struct fb_var_screeninfo *var = &p->var; | |
971 | struct retz3_fb_info *zinfo = retz3info(p->fb_info); | |
972 | volatile unsigned long *acm = (unsigned long *)(zinfo->base + ACM_OFFSET); | |
973 | unsigned long *pattern = (unsigned long *)(zinfo->fbmem + PAT_MEM_OFF); | |
974 | ||
975 | unsigned short mod; | |
976 | unsigned long tmp; | |
977 | unsigned long pat, src, dst; | |
978 | ||
979 | int i, xres_virtual = var->xres_virtual; | |
980 | short bpp = (var->bits_per_pixel & 0xff); | |
981 | ||
982 | if (bpp < 8) | |
983 | bpp = 8; | |
984 | ||
985 | tmp = mask | (mask << 16); | |
986 | ||
987 | retz3_busy(p); | |
988 | ||
989 | i = 0; | |
990 | do{ | |
991 | *pattern++ = tmp; | |
992 | }while(i++ < bpp/4); | |
993 | ||
994 | tmp = cmd << 8; | |
995 | *(acm + ACM_RASTEROP_ROTATION/4) = tmp; | |
996 | ||
997 | mod = 0xc0c2; | |
998 | ||
999 | pat = 8 * PAT_MEM_OFF; | |
1000 | dst = bpp * (destx + desty * xres_virtual); | |
1001 | ||
1002 | /* | |
1003 | * Source is not set for clear. | |
1004 | */ | |
1005 | if ((cmd != Z3BLTclear) && (cmd != Z3BLTset)) { | |
1006 | src = bpp * (srcx + srcy * xres_virtual); | |
1007 | ||
1008 | if (destx > srcx) { | |
1009 | mod &= ~0x8000; | |
1010 | src += bpp * (width - 1); | |
1011 | dst += bpp * (width - 1); | |
1012 | pat += bpp * 2; | |
1013 | } | |
1014 | if (desty > srcy) { | |
1015 | mod &= ~0x4000; | |
1016 | src += bpp * (height - 1) * xres_virtual; | |
1017 | dst += bpp * (height - 1) * xres_virtual; | |
1018 | pat += bpp * 4; | |
1019 | } | |
1020 | ||
1021 | *(acm + ACM_SOURCE/4) = cpu_to_le32(src); | |
1022 | } | |
1023 | ||
1024 | *(acm + ACM_PATTERN/4) = cpu_to_le32(pat); | |
1025 | ||
1026 | *(acm + ACM_DESTINATION/4) = cpu_to_le32(dst); | |
1027 | ||
1028 | tmp = mod << 16; | |
1029 | *(acm + ACM_CONTROL/4) = tmp; | |
1030 | ||
1031 | tmp = width | (height << 16); | |
1032 | ||
1033 | *(acm + ACM_BITMAP_DIMENSION/4) = cpu_to_le32(tmp); | |
1034 | ||
1035 | *(((volatile unsigned char *)acm) + ACM_START_STATUS) = 0x00; | |
1036 | *(((volatile unsigned char *)acm) + ACM_START_STATUS) = 0x01; | |
1037 | zinfo->blitbusy = 1; | |
1038 | } | |
1039 | ||
1040 | #if 0 | |
1041 | /* | |
1042 | * Move cursor to x, y | |
1043 | */ | |
1044 | static void retz3_MoveCursor (unsigned short x, unsigned short y) | |
1045 | { | |
1046 | /* Guess we gotta deal with the cursor at some point */ | |
1047 | } | |
1048 | #endif | |
1049 | ||
1050 | ||
1051 | /* | |
1052 | * Fill the hardware's `par' structure. | |
1053 | */ | |
1054 | ||
1055 | static void retz3fb_get_par(struct fb_info *info, struct retz3fb_par *par) | |
1056 | { | |
1057 | struct retz3_fb_info *zinfo = retz3info(info); | |
1058 | ||
1059 | if (zinfo->current_par_valid) | |
1060 | *par = zinfo->current_par; | |
1061 | else | |
1062 | retz3_decode_var(&retz3fb_default, par); | |
1063 | } | |
1064 | ||
1065 | ||
1066 | static void retz3fb_set_par(struct fb_info *info, struct retz3fb_par *par) | |
1067 | { | |
1068 | struct retz3_fb_info *zinfo = retz3info(info); | |
1069 | ||
1070 | zinfo->current_par = *par; | |
1071 | zinfo->current_par_valid = 1; | |
1072 | } | |
1073 | ||
1074 | ||
1075 | static int do_fb_set_var(struct fb_info *info, | |
1076 | struct fb_var_screeninfo *var, int isactive) | |
1077 | { | |
1078 | int err, activate; | |
1079 | struct retz3fb_par par; | |
1080 | struct retz3_fb_info *zinfo = retz3info(info); | |
1081 | ||
1082 | if ((err = retz3_decode_var(var, &par))) | |
1083 | return err; | |
1084 | activate = var->activate; | |
1085 | ||
1086 | /* XXX ... what to do about isactive ? */ | |
1087 | ||
1088 | if ((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW && isactive) | |
1089 | retz3fb_set_par(info, &par); | |
1090 | retz3_encode_var(var, &par); | |
1091 | var->activate = activate; | |
1092 | ||
1093 | retz3_set_video(info, var, &zinfo->current_par); | |
1094 | ||
1095 | return 0; | |
1096 | } | |
1097 | ||
1098 | /* | |
1099 | * Get the Fixed Part of the Display | |
1100 | */ | |
1101 | ||
1102 | static int retz3fb_get_fix(struct fb_fix_screeninfo *fix, int con, | |
1103 | struct fb_info *info) | |
1104 | { | |
1105 | struct retz3fb_par par; | |
1106 | int error = 0; | |
1107 | ||
1108 | if (con == -1) | |
1109 | retz3fb_get_par(info, &par); | |
1110 | else | |
1111 | error = retz3_decode_var(&fb_display[con].var, &par); | |
1112 | return(error ? error : retz3_encode_fix(info, fix, &par)); | |
1113 | } | |
1114 | ||
1115 | ||
1116 | /* | |
1117 | * Get the User Defined Part of the Display | |
1118 | */ | |
1119 | ||
1120 | static int retz3fb_get_var(struct fb_var_screeninfo *var, int con, | |
1121 | struct fb_info *info) | |
1122 | { | |
1123 | struct retz3fb_par par; | |
1124 | int error = 0; | |
1125 | ||
1126 | if (con == -1) { | |
1127 | retz3fb_get_par(info, &par); | |
1128 | error = retz3_encode_var(var, &par); | |
1129 | } else | |
1130 | *var = fb_display[con].var; | |
1131 | return error; | |
1132 | } | |
1133 | ||
1134 | ||
1135 | static void retz3fb_set_disp(int con, struct fb_info *info) | |
1136 | { | |
1137 | struct fb_fix_screeninfo fix; | |
1138 | struct display *display; | |
1139 | struct retz3_fb_info *zinfo = retz3info(info); | |
1140 | ||
1141 | if (con >= 0) | |
1142 | display = &fb_display[con]; | |
1143 | else | |
1144 | display = &zinfo->disp; /* used during initialization */ | |
1145 | ||
1146 | retz3fb_get_fix(&fix, con, info); | |
1147 | ||
1148 | if (con == -1) | |
1149 | con = 0; | |
1150 | ||
1151 | display->visual = fix.visual; | |
1152 | display->type = fix.type; | |
1153 | display->type_aux = fix.type_aux; | |
1154 | display->ypanstep = fix.ypanstep; | |
1155 | display->ywrapstep = fix.ywrapstep; | |
1156 | display->can_soft_blank = 1; | |
1157 | display->inverse = z3fb_inverse; | |
1158 | ||
1159 | /* | |
1160 | * This seems to be about 20% faster. | |
1161 | */ | |
1162 | display->scrollmode = SCROLL_YREDRAW; | |
1163 | ||
1164 | switch (display->var.bits_per_pixel) { | |
1165 | #ifdef FBCON_HAS_CFB8 | |
1166 | case 8: | |
1167 | if (display->var.accel_flags & FB_ACCELF_TEXT) { | |
1168 | display->dispsw = &fbcon_retz3_8; | |
1169 | retz3_set_video(info, &display->var, &zinfo->current_par); | |
1170 | } else | |
1171 | display->dispsw = &fbcon_cfb8; | |
1172 | break; | |
1173 | #endif | |
1174 | #ifdef FBCON_HAS_CFB16 | |
1175 | case 16: | |
1176 | display->dispsw = &fbcon_cfb16; | |
1177 | break; | |
1178 | #endif | |
1179 | default: | |
1180 | display->dispsw = &fbcon_dummy; | |
1181 | break; | |
1182 | } | |
1183 | } | |
1184 | ||
1185 | ||
1186 | /* | |
1187 | * Set the User Defined Part of the Display | |
1188 | */ | |
1189 | ||
1190 | static int retz3fb_set_var(struct fb_var_screeninfo *var, int con, | |
1191 | struct fb_info *info) | |
1192 | { | |
1193 | int err, oldxres, oldyres, oldvxres, oldvyres, oldbpp, oldaccel; | |
1194 | struct display *display; | |
1195 | struct retz3_fb_info *zinfo = retz3info(info); | |
1196 | ||
1197 | if (con >= 0) | |
1198 | display = &fb_display[con]; | |
1199 | else | |
1200 | display = &zinfo->disp; /* used during initialization */ | |
1201 | ||
1202 | if ((err = do_fb_set_var(info, var, con == info->currcon))) | |
1203 | return err; | |
1204 | if ((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW) { | |
1205 | oldxres = display->var.xres; | |
1206 | oldyres = display->var.yres; | |
1207 | oldvxres = display->var.xres_virtual; | |
1208 | oldvyres = display->var.yres_virtual; | |
1209 | oldbpp = display->var.bits_per_pixel; | |
1210 | oldaccel = display->var.accel_flags; | |
1211 | display->var = *var; | |
1212 | ||
1213 | if (oldxres != var->xres || oldyres != var->yres || | |
1214 | oldvxres != var->xres_virtual || | |
1215 | oldvyres != var->yres_virtual || | |
1216 | oldbpp != var->bits_per_pixel || | |
1217 | oldaccel != var->accel_flags) { | |
1218 | ||
1219 | struct fb_fix_screeninfo fix; | |
1220 | retz3fb_get_fix(&fix, con, info); | |
1221 | ||
1222 | display->visual = fix.visual; | |
1223 | display->type = fix.type; | |
1224 | display->type_aux = fix.type_aux; | |
1225 | display->ypanstep = fix.ypanstep; | |
1226 | display->ywrapstep = fix.ywrapstep; | |
1227 | display->line_length = fix.line_length; | |
1228 | display->can_soft_blank = 1; | |
1229 | display->inverse = z3fb_inverse; | |
1230 | switch (display->var.bits_per_pixel) { | |
1231 | #ifdef FBCON_HAS_CFB8 | |
1232 | case 8: | |
1233 | if (var->accel_flags & FB_ACCELF_TEXT) { | |
1234 | display->dispsw = &fbcon_retz3_8; | |
1235 | } else | |
1236 | display->dispsw = &fbcon_cfb8; | |
1237 | break; | |
1238 | #endif | |
1239 | #ifdef FBCON_HAS_CFB16 | |
1240 | case 16: | |
1241 | display->dispsw = &fbcon_cfb16; | |
1242 | break; | |
1243 | #endif | |
1244 | default: | |
1245 | display->dispsw = &fbcon_dummy; | |
1246 | break; | |
1247 | } | |
1248 | /* | |
1249 | * We still need to find a way to tell the X | |
1250 | * server that the video mem has been fiddled with | |
1251 | * so it redraws the entire screen when switching | |
1252 | * between X and a text console. | |
1253 | */ | |
1254 | retz3_set_video(info, var, &zinfo->current_par); | |
1255 | ||
1256 | if (info->changevar) | |
1257 | (*info->changevar)(con); | |
1258 | } | |
1259 | ||
1260 | if (oldbpp != var->bits_per_pixel) { | |
1261 | if ((err = fb_alloc_cmap(&display->cmap, 0, 0))) | |
1262 | return err; | |
1263 | do_install_cmap(con, info); | |
1264 | } | |
1265 | } | |
1266 | return 0; | |
1267 | } | |
1268 | ||
1269 | ||
1270 | /* | |
1271 | * Get the Colormap | |
1272 | */ | |
1273 | ||
1274 | static int retz3fb_get_cmap(struct fb_cmap *cmap, int kspc, int con, | |
1275 | struct fb_info *info) | |
1276 | { | |
1277 | if (con == info->currcon) /* current console? */ | |
1278 | return(fb_get_cmap(cmap, kspc, retz3_getcolreg, info)); | |
1279 | else if (fb_display[con].cmap.len) /* non default colormap? */ | |
1280 | fb_copy_cmap(&fb_display[con].cmap, cmap, kspc ? 0 : 2); | |
1281 | else | |
1282 | fb_copy_cmap(fb_default_cmap(1<<fb_display[con].var.bits_per_pixel), | |
1283 | cmap, kspc ? 0 : 2); | |
1284 | return 0; | |
1285 | } | |
1286 | ||
1287 | /* | |
1288 | * Blank the display. | |
1289 | */ | |
1290 | ||
1291 | static int retz3fb_blank(int blank, struct fb_info *info) | |
1292 | { | |
1293 | struct retz3_fb_info *zinfo = retz3info(info); | |
1294 | volatile unsigned char *regs = retz3info(info)->regs; | |
1295 | short i; | |
1296 | ||
1297 | if (blank) | |
1298 | for (i = 0; i < 256; i++){ | |
1299 | reg_w(regs, VDAC_ADDRESS_W, i); | |
1300 | reg_w(regs, VDAC_DATA, 0); | |
1301 | reg_w(regs, VDAC_DATA, 0); | |
1302 | reg_w(regs, VDAC_DATA, 0); | |
1303 | } | |
1304 | else | |
1305 | for (i = 0; i < 256; i++){ | |
1306 | reg_w(regs, VDAC_ADDRESS_W, i); | |
1307 | reg_w(regs, VDAC_DATA, zinfo->color_table[i][0]); | |
1308 | reg_w(regs, VDAC_DATA, zinfo->color_table[i][1]); | |
1309 | reg_w(regs, VDAC_DATA, zinfo->color_table[i][2]); | |
1310 | } | |
1311 | return 0; | |
1312 | } | |
1313 | ||
1314 | static struct fb_ops retz3fb_ops = { | |
1315 | .owner = THIS_MODULE, | |
1316 | .fb_get_fix = retz3fb_get_fix, | |
1317 | .fb_get_var = retz3fb_get_var, | |
1318 | .fb_set_var = retz3fb_set_var, | |
1319 | .fb_get_cmap = retz3fb_get_cmap, | |
1320 | .fb_set_cmap = gen_set_cmap, | |
1321 | .fb_setcolreg = retz3fb_setcolreg, | |
1322 | .fb_blank = retz3fb_blank, | |
1323 | }; | |
1324 | ||
1325 | int __init retz3fb_setup(char *options) | |
1326 | { | |
1327 | char *this_opt; | |
1328 | ||
1329 | if (!options || !*options) | |
1330 | return 0; | |
1331 | ||
1332 | while ((this_opt = strsep(&options, ",")) != NULL) { | |
1333 | if (!*this_opt) | |
1334 | continue; | |
1335 | if (!strcmp(this_opt, "inverse")) { | |
1336 | z3fb_inverse = 1; | |
1337 | fb_invert_cmaps(); | |
1338 | } else if (!strncmp(this_opt, "font:", 5)) { | |
1339 | strlcpy(fontname, this_opt+5, sizeof(fontname)); | |
1340 | } else | |
1341 | z3fb_mode = get_video_mode(this_opt); | |
1342 | } | |
1343 | return 0; | |
1344 | } | |
1345 | ||
1346 | ||
1347 | /* | |
1348 | * Initialization | |
1349 | */ | |
1350 | ||
1351 | int __init retz3fb_init(void) | |
1352 | { | |
1353 | unsigned long board_addr, board_size; | |
1354 | struct zorro_dev *z = NULL; | |
1355 | volatile unsigned char *regs; | |
1356 | struct retz3fb_par par; | |
1357 | struct retz3_fb_info *zinfo; | |
1358 | struct fb_info *fb_info; | |
1359 | short i; | |
1360 | int res = -ENXIO; | |
1361 | ||
1362 | while ((z = zorro_find_device(ZORRO_PROD_MACROSYSTEMS_RETINA_Z3, z))) { | |
1363 | board_addr = z->resource.start; | |
1364 | board_size = z->resource.end-z->resource.start+1; | |
1365 | if (!request_mem_region(board_addr, 0x0c00000, | |
1366 | "ncr77c32blt")) { | |
1367 | continue; | |
1368 | if (!request_mem_region(board_addr+VIDEO_MEM_OFFSET, | |
1369 | 0x00400000, "RAM")) | |
1370 | release_mem_region(board_addr, 0x00c00000); | |
1371 | continue; | |
1372 | } | |
1373 | if (!(zinfo = kmalloc(sizeof(struct retz3_fb_info), | |
1374 | GFP_KERNEL))) | |
1375 | return -ENOMEM; | |
1376 | memset(zinfo, 0, sizeof(struct retz3_fb_info)); | |
1377 | ||
1378 | zinfo->base = ioremap(board_addr, board_size); | |
1379 | zinfo->regs = zinfo->base; | |
1380 | zinfo->fbmem = zinfo->base + VIDEO_MEM_OFFSET; | |
1381 | /* Get memory size - for now we asume it's a 4MB board */ | |
1382 | zinfo->fbsize = 0x00400000; /* 4 MB */ | |
1383 | zinfo->physregs = board_addr; | |
1384 | zinfo->physfbmem = board_addr + VIDEO_MEM_OFFSET; | |
1385 | ||
1386 | fb_info = fbinfo(zinfo); | |
1387 | ||
1388 | for (i = 0; i < 256; i++){ | |
1389 | for (i = 0; i < 256; i++){ | |
1390 | zinfo->color_table[i][0] = i; | |
1391 | zinfo->color_table[i][1] = i; | |
1392 | zinfo->color_table[i][2] = i; | |
1393 | } | |
1394 | } | |
1395 | ||
1396 | regs = zinfo->regs; | |
1397 | /* Disable hardware cursor */ | |
1398 | seq_w(regs, SEQ_CURSOR_Y_INDEX, 0x00); | |
1399 | ||
1400 | retz3fb_setcolreg (255, 56<<8, 100<<8, 160<<8, 0, fb_info); | |
1401 | retz3fb_setcolreg (254, 0, 0, 0, 0, fb_info); | |
1402 | ||
1403 | strcpy(fb_info->modename, retz3fb_name); | |
1404 | fb_info->changevar = NULL; | |
1405 | fb_info->fbops = &retz3fb_ops; | |
1406 | fb_info->screen_base = zinfo->fbmem; | |
1407 | fb_info->disp = &zinfo->disp; | |
1408 | fb_info->currcon = -1; | |
1409 | fb_info->switch_con = &z3fb_switch; | |
1410 | fb_info->updatevar = &z3fb_updatevar; | |
1411 | fb_info->flags = FBINFO_FLAG_DEFAULT; | |
1412 | strlcpy(fb_info->fontname, fontname, sizeof(fb_info->fontname)); | |
1413 | ||
1414 | if (z3fb_mode == -1) | |
1415 | retz3fb_default = retz3fb_predefined[0].var; | |
1416 | ||
1417 | retz3_decode_var(&retz3fb_default, &par); | |
1418 | retz3_encode_var(&retz3fb_default, &par); | |
1419 | ||
1420 | do_fb_set_var(fb_info, &retz3fb_default, 0); | |
1421 | retz3fb_get_var(&zinfo->disp.var, -1, fb_info); | |
1422 | ||
1423 | retz3fb_set_disp(-1, fb_info); | |
1424 | ||
1425 | do_install_cmap(0, fb_info); | |
1426 | ||
1427 | if (register_framebuffer(fb_info) < 0) | |
1428 | return -EINVAL; | |
1429 | ||
1430 | printk(KERN_INFO "fb%d: %s frame buffer device, using %ldK of " | |
1431 | "video memory\n", fb_info->node, | |
1432 | fb_info->modename, zinfo->fbsize>>10); | |
1433 | ||
1434 | /* FIXME: This driver cannot be unloaded yet */ | |
1435 | res = 0; | |
1436 | } | |
1437 | return res; | |
1438 | } | |
1439 | ||
1440 | ||
1441 | static int z3fb_switch(int con, struct fb_info *info) | |
1442 | { | |
1443 | /* Do we have to save the colormap? */ | |
1444 | if (fb_display[info->currcon].cmap.len) | |
1445 | fb_get_cmap(&fb_display[info->currcon].cmap, 1, | |
1446 | retz3_getcolreg, info); | |
1447 | ||
1448 | do_fb_set_var(info, &fb_display[con].var, 1); | |
1449 | info->currcon = con; | |
1450 | /* Install new colormap */ | |
1451 | do_install_cmap(con, info); | |
1452 | return 0; | |
1453 | } | |
1454 | ||
1455 | ||
1456 | /* | |
1457 | * Update the `var' structure (called by fbcon.c) | |
1458 | * | |
1459 | * This call looks only at yoffset and the FB_VMODE_YWRAP flag in `var'. | |
1460 | * Since it's called by a kernel driver, no range checking is done. | |
1461 | */ | |
1462 | ||
1463 | static int z3fb_updatevar(int con, struct fb_info *info) | |
1464 | { | |
1465 | return 0; | |
1466 | } | |
1467 | ||
1468 | /* | |
1469 | * Get a Video Mode | |
1470 | */ | |
1471 | ||
1472 | static int __init get_video_mode(const char *name) | |
1473 | { | |
1474 | short i; | |
1475 | ||
1476 | for (i = 0; i < NUM_TOTAL_MODES; i++) | |
1477 | if (!strcmp(name, retz3fb_predefined[i].name)){ | |
1478 | retz3fb_default = retz3fb_predefined[i].var; | |
1479 | return i; | |
1480 | } | |
1481 | return -1; | |
1482 | } | |
1483 | ||
1484 | ||
1485 | #ifdef MODULE | |
1486 | MODULE_LICENSE("GPL"); | |
1487 | ||
1488 | int init_module(void) | |
1489 | { | |
1490 | return retz3fb_init(); | |
1491 | } | |
1492 | #endif | |
1493 | ||
1494 | ||
1495 | /* | |
1496 | * Text console acceleration | |
1497 | */ | |
1498 | ||
1499 | #ifdef FBCON_HAS_CFB8 | |
1500 | static void retz3_8_bmove(struct display *p, int sy, int sx, | |
1501 | int dy, int dx, int height, int width) | |
1502 | { | |
1503 | int fontwidth = fontwidth(p); | |
1504 | ||
1505 | sx *= fontwidth; | |
1506 | dx *= fontwidth; | |
1507 | width *= fontwidth; | |
1508 | ||
1509 | retz3_bitblt(p, | |
1510 | (unsigned short)sx, | |
1511 | (unsigned short)(sy*fontheight(p)), | |
1512 | (unsigned short)dx, | |
1513 | (unsigned short)(dy*fontheight(p)), | |
1514 | (unsigned short)width, | |
1515 | (unsigned short)(height*fontheight(p)), | |
1516 | Z3BLTcopy, | |
1517 | 0xffff); | |
1518 | } | |
1519 | ||
1520 | static void retz3_8_clear(struct vc_data *conp, struct display *p, | |
1521 | int sy, int sx, int height, int width) | |
1522 | { | |
1523 | unsigned short col; | |
1524 | int fontwidth = fontwidth(p); | |
1525 | ||
1526 | sx *= fontwidth; | |
1527 | width *= fontwidth; | |
1528 | ||
1529 | col = attr_bgcol_ec(p, conp); | |
1530 | col &= 0xff; | |
1531 | col |= (col << 8); | |
1532 | ||
1533 | retz3_bitblt(p, | |
1534 | (unsigned short)sx, | |
1535 | (unsigned short)(sy*fontheight(p)), | |
1536 | (unsigned short)sx, | |
1537 | (unsigned short)(sy*fontheight(p)), | |
1538 | (unsigned short)width, | |
1539 | (unsigned short)(height*fontheight(p)), | |
1540 | Z3BLTset, | |
1541 | col); | |
1542 | } | |
1543 | ||
1544 | ||
1545 | static void retz3_putc(struct vc_data *conp, struct display *p, int c, | |
1546 | int yy, int xx) | |
1547 | { | |
1548 | retz3_busy(p); | |
1549 | fbcon_cfb8_putc(conp, p, c, yy, xx); | |
1550 | } | |
1551 | ||
1552 | ||
1553 | static void retz3_putcs(struct vc_data *conp, struct display *p, | |
1554 | const unsigned short *s, int count, | |
1555 | int yy, int xx) | |
1556 | { | |
1557 | retz3_busy(p); | |
1558 | fbcon_cfb8_putcs(conp, p, s, count, yy, xx); | |
1559 | } | |
1560 | ||
1561 | ||
1562 | static void retz3_revc(struct display *p, int xx, int yy) | |
1563 | { | |
1564 | retz3_busy(p); | |
1565 | fbcon_cfb8_revc(p, xx, yy); | |
1566 | } | |
1567 | ||
1568 | ||
1569 | static void retz3_clear_margins(struct vc_data* conp, struct display* p, | |
1570 | int bottom_only) | |
1571 | { | |
1572 | retz3_busy(p); | |
1573 | fbcon_cfb8_clear_margins(conp, p, bottom_only); | |
1574 | } | |
1575 | ||
1576 | ||
1577 | static struct display_switch fbcon_retz3_8 = { | |
1578 | .setup = fbcon_cfb8_setup, | |
1579 | .bmove = retz3_8_bmove, | |
1580 | .clear = retz3_8_clear, | |
1581 | .putc = retz3_putc, | |
1582 | .putcs = retz3_putcs, | |
1583 | .revc = retz3_revc, | |
1584 | .clear_margins = retz3_clear_margins, | |
1585 | .fontwidthmask = FONTWIDTH(8) | |
1586 | }; | |
1587 | #endif |