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[PATCH] update copyright and licensing
[linux-2.6/history.git] / drivers / video / pm2fb.c
blobcf7d9ff2fdb60751fd7394070ed4434660606daf
1 /*
2 * Permedia2 framebuffer driver.
3 * Copyright (c) 1998-2000 Ilario Nardinocchi (nardinoc@CS.UniBO.IT)
4 * Copyright (c) 1999 Jakub Jelinek (jakub@redhat.com)
5 * Based on linux/drivers/video/skeletonfb.c by Geert Uytterhoeven.
6 * --------------------------------------------------------------------------
7 * $Id: pm2fb.c,v 1.213 2000/09/19 01:03:19 illo Exp $
8 * --------------------------------------------------------------------------
9 * History:
10 * 1999/05/09 added Jim Hague's 'var' kernel option (thanks Jim!)
11 * 2002/04/23 Jim Hague <jim.hague@acm.org>
12 * * Integrated Illo's last changes, No changelist available.
13 * Major items: acceleration support, hardware cursor code
14 * (not yet enabled).
15 * * Fixed -vsync, added lowhsync/lowvsync overrides for use with
16 * XFree GLINT driver.
17 * --------------------------------------------------------------------------
18 * TODO multiple boards support
19 * --------------------------------------------------------------------------
20 * This file is subject to the terms and conditions of the GNU General Public
21 * License. See the file COPYING in the main directory of this archive
22 * for more details.
23 */
24
25 #include <linux/config.h>
26 #include <linux/module.h>
27 #include <linux/kernel.h>
28 #include <linux/errno.h>
29 #include <linux/string.h>
30 #include <linux/mm.h>
31 #include <linux/tty.h>
32 #include <linux/slab.h>
33 #include <linux/vmalloc.h>
34 #include <linux/delay.h>
35 #include <linux/interrupt.h>
36 #include <linux/fb.h>
37 #include <linux/selection.h>
38 #include <linux/console.h>
39 #include <linux/init.h>
40 #include <linux/pci.h>
41 #include <asm/system.h>
42 #include <asm/io.h>
43 #include <asm/uaccess.h>
44 #include <video/fbcon.h>
45 #include <video/fbcon-cfb8.h>
46 #include <video/fbcon-cfb16.h>
47 #include <video/fbcon-cfb24.h>
48 #include <video/fbcon-cfb32.h>
49 #include <video/pm2fb.h>
50 #include "cvisionppc.h"
51 #ifdef __sparc__
52 #include <asm/pbm.h>
53 #include <asm/fbio.h>
54 #endif
55
56 #if !defined(__LITTLE_ENDIAN) && !defined(__BIG_ENDIAN)
57 #error "The endianness of the target host has not been defined."
58 #endif
59
60 #if defined(__BIG_ENDIAN) && !defined(__sparc__) && (!defined(CONFIG_PPC) || defined(CONFIG_FB_PM2_CVPPC))
61 #define PM2FB_BE_APERTURE
62 #endif
63
64 /* Need to debug this some more */
65 #undef PM2FB_HW_CURSOR
66
67 #if defined(CONFIG_FB_PM2_PCI) && !defined(CONFIG_PCI)
68 #undef CONFIG_FB_PM2_PCI
69 #warning "support for Permedia2 PCI boards with no generic PCI support!"
70 #endif
71
72 #undef PM2FB_MASTER_DEBUG
73 #ifdef PM2FB_MASTER_DEBUG
74 #define DPRINTK(a,b...) printk(KERN_DEBUG "pm2fb: %s: " a, __FUNCTION__ , ## b)
75 #else
76 #define DPRINTK(a,b...)
77 #endif
78
79 #define PICOS2KHZ(a) (1000000000UL/(a))
80 #define KHZ2PICOS(a) (1000000000UL/(a))
81
82 /*
83 * The _DEFINITIVE_ memory mapping/unmapping functions.
84 * This is due to the fact that they're changing soooo often...
85 */
86 #define MMAP(a,b) ioremap((unsigned long )(a), b)
87 #define UNMAP(a,b) iounmap(a)
88
89 /*
90 * The _DEFINITIVE_ memory i/o barrier functions.
91 * This is due to the fact that they're changing soooo often...
92 */
93 #ifdef __mc68000__
94 #define DEFW()
95 #define DEFR()
96 #define DEFRW()
97 #else
98 #define DEFW() wmb()
99 #define DEFR() rmb()
100 #define DEFRW() mb()
101 #endif
102
103 #ifndef MIN
104 #define MIN(a,b) ((a)<(b)?(a):(b))
105 #endif
106
107 #ifndef MAX
108 #define MAX(a,b) ((a)>(b)?(a):(b))
109 #endif
110
111 #define VIDEO_MASK 0x00011e7f /* r/w values for VIDEO_CONTROL */
112
113 #define PM2FF_ACCEL (1L<<0)
114
115 struct pm2fb_par {
116 u32 pixclock; /* pixclock in KHz */
117 u32 width; /* width of virtual screen */
118 u32 height; /* height of virtual screen */
119 u32 hsstart; /* horiz. sync start */
120 u32 hsend; /* horiz. sync end */
121 u32 hbend; /* horiz. blank end (also gate end) */
122 u32 htotal; /* total width (w/ sync & blank) */
123 u32 vsstart; /* vert. sync start */
124 u32 vsend; /* vert. sync end */
125 u32 vbend; /* vert. blank end */
126 u32 vtotal; /* total height (w/ sync & blank) */
127 u32 stride; /* screen stride */
128 u32 base; /* screen base (xoffset+yoffset) */
129 u32 depth; /* screen depth (8, 16, 24 or 32) */
130 u32 video; /* video control (hsync,vsync) */
131 u32 flags; /* internal flags (PM2FF_xxxx) */
132 };
133
134 #define OPTF_OLD_MEM (1L<<0)
135 #define OPTF_YPAN (1L<<1)
136 #define OPTF_VIRTUAL (1L<<2)
137 #define OPTF_USER (1L<<3)
138 #define OPTF_USER_VAR (1L<<4)
139 #define OPTF_LOW_HSYNC (1L<<5)
140 #define OPTF_LOW_VSYNC (1L<<6)
141
142 static struct {
143 char font[40];
144 u32 flags;
145 struct pm2fb_par user_mode;
146 } pm2fb_options =
147 #ifdef __sparc__
148 /* For some reason Raptor is not happy with the low-end mode */
149 {"\0", 0L, {31499,640,480,4,20,50,209,0,3,20,499,80,0,8,121}};
150 #else
151 {"\0", 0L, {25174,640,480,4,28,40,199,9,11,45,524,80,0,8,121}};
152 #endif
153
154 static char curblink __initdata = 1;
155
156 static struct fb_var_screeninfo user_var __initdata={0,};
157
158 #define DEFAULT_USER_MODE 0
159
160 static const struct {
161 char name[16];
162 struct pm2fb_par par;
163 } user_mode[] __initdata = {
164 {"640x480-60",
165 {25174,640,480,4,28,40,199,9,11,45,524,80,0,8,121,PM2FF_ACCEL}},
166 {"640x480-72",
167 {31199,640,480,6,16,48,207,8,10,39,518,80,0,8,121,PM2FF_ACCEL}},
168 {"640x480-75",
169 {31499,640,480,4,20,50,209,0,3,20,499,80,0,8,121,PM2FF_ACCEL}},
170 {"640x480-90",
171 {39909,640,480,8,18,48,207,24,38,53,532,80,0,8,121,PM2FF_ACCEL}},
172 {"640x480-100",
173 {44899,640,480,8,40,52,211,21,33,51,530,80,0,8,121,PM2FF_ACCEL}},
174 {"800x600-56",
175 {35999,800,600,6,24,56,255,0,2,25,624,100,0,8,41,PM2FF_ACCEL}},
176 {"800x600-60",
177 {40000,800,600,10,42,64,263,0,4,28,627,100,0,8,41,PM2FF_ACCEL}},
178 {"800x600-70",
179 {44899,800,600,6,42,52,251,8,20,36,635,100,0,8,105,PM2FF_ACCEL}},
180 {"800x600-72",
181 {50000,800,600,14,44,60,259,36,42,66,665,100,0,8,41,PM2FF_ACCEL}},
182 {"800x600-75",
183 {49497,800,600,4,24,64,263,0,3,25,624,100,0,8,41,PM2FF_ACCEL}},
184 {"800x600-90",
185 {56637,800,600,2,18,48,247,7,18,35,634,100,0,8,41,PM2FF_ACCEL}},
186 {"800x600-100",
187 {67499,800,600,0,16,70,269,6,10,25,624,100,0,8,41,PM2FF_ACCEL}},
188 {"1024x768-60",
189 {64998,1024,768,6,40,80,335,2,8,38,805,128,0,8,121,PM2FF_ACCEL}},
190 {"1024x768-70",
191 {74996,1024,768,6,40,76,331,2,8,38,805,128,0,8,121,PM2FF_ACCEL}},
192 {"1024x768-72",
193 {74996,1024,768,6,40,66,321,2,8,38,805,128,0,8,121,PM2FF_ACCEL}},
194 {"1024x768-75",
195 {78932,1024,768,4,28,72,327,0,3,32,799,128,0,8,41,PM2FF_ACCEL}},
196 {"1024x768-90",
197 {100000,1024,768,0,24,72,327,20,35,77,844,128,0,8,121,PM2FF_ACCEL}},
198 {"1024x768-100",
199 {109998,1024,768,0,22,92,347,0,7,24,791,128,0,8,121,PM2FF_ACCEL}},
200 {"1024x768-illo",
201 {120336,1024,768,12,48,120,375,3,7,32,799,128,0,8,41,PM2FF_ACCEL}},
202 {"1152x864-60",
203 {80000,1152,864,16,44,76,363,5,10,52,915,144,0,8,41,PM2FF_ACCEL}},
204 {"1152x864-70",
205 {100000,1152,864,10,48,90,377,12,23,81,944,144,0,8,41,PM2FF_ACCEL}},
206 {"1152x864-75",
207 {109998,1152,864,6,42,78,365,44,52,138,1001,144,0,8,41,PM2FF_ACCEL}},
208 {"1152x864-80",
209 {109998,1152,864,4,32,72,359,29,36,94,957,144,0,8,41,PM2FF_ACCEL}},
210 {"1152x900-66-sun",
211 {92940,1152,900,16,80,176,751,1,5,37,936,288,0,16,121,PM2FF_ACCEL}},
212 {"1280x1024-60",
213 {107991,1280,1024,12,40,102,421,0,3,42,1065,160,0,8,41,PM2FF_ACCEL}},
214 {"1280x1024-70",
215 {125992,1280,1024,20,48,102,421,0,5,42,1065,160,0,8,41,PM2FF_ACCEL}},
216 {"1280x1024-74",
217 {134989,1280,1024,8,44,108,427,0,29,40,1063,160,0,8,41,PM2FF_ACCEL}},
218 {"1280x1024-75",
219 {134989,1280,1024,4,40,102,421,0,3,42,1065,160,0,8,41,PM2FF_ACCEL}},
220 {"1600x1200-60",
221 {155981,1600,1200,8,48,112,511,9,17,70,1269,200,0,8,121,PM2FF_ACCEL}},
222 {"1600x1200-66",
223 {171998,1600,1200,10,44,120,519,2,5,53,1252,200,0,8,121,PM2FF_ACCEL}},
224 {"1600x1200-76",
225 {197980,1600,1200,10,44,120,519,2,7,50,1249,200,0,8,121,PM2FF_ACCEL}},
226 {"\0", },
227 };
228
229 #ifdef CONFIG_FB_PM2_PCI
230 struct pm2pci_par {
231 u32 mem_config;
232 u32 mem_control;
233 u32 boot_address;
234 struct pci_dev* dev;
235 };
236 #endif
237
238 #define DEFAULT_CURSOR_BLINK_RATE (20)
239 #define CURSOR_DRAW_DELAY (2)
240
241 struct pm2_cursor {
242 int enable;
243 int on;
244 int vbl_cnt;
245 int blink_rate;
246 struct {
247 u16 x, y;
248 } pos, hot, size;
249 u8 color[6];
250 u8 bits[8][64];
251 u8 mask[8][64];
252 struct timer_list *timer;
253 };
254
255 static const char permedia2_name[16]="Permedia2";
256
257 static struct pm2fb_info {
258 struct fb_info_gen gen;
259 int board; /* Permedia2 board index (see
260 board_table[] below) */
261 pm2type_t type; /* Permedia2 board type */
262 struct {
263 unsigned long fb_base; /* physical framebuffer memory base */
264 u32 fb_size; /* framebuffer memory size */
265 unsigned long rg_base; /* physical register memory base */
266 unsigned long p_fb; /* physical address of frame buffer */
267 unsigned char* v_fb; /* virtual address of frame buffer */
268 unsigned long p_regs; /* physical address of registers
269 region, must be rg_base or
270 rg_base+PM2_REGS_SIZE depending on
271 the host endianness */
272 unsigned char* v_regs; /* virtual address of p_regs */
273 } regions;
274 union { /* here, the per-board par structs */
275 #ifdef CONFIG_FB_PM2_CVPPC
276 struct cvppc_par cvppc; /* CVisionPPC data */
277 #endif
278 #ifdef CONFIG_FB_PM2_PCI
279 struct pm2pci_par pci; /* Permedia2 PCI boards data */
280 #endif
281 } board_par;
282 struct pm2fb_par current_par; /* displayed screen */
283 int current_par_valid;
284 int is_blank;
285 u32 memclock; /* memclock (set by the per-board
286 init routine) */
287 struct display disp;
288 struct {
289 u8 transp;
290 u8 red;
291 u8 green;
292 u8 blue;
293 } palette[256];
294 union {
295 #ifdef FBCON_HAS_CFB16
296 u16 cmap16[16];
297 #endif
298 #ifdef FBCON_HAS_CFB24
299 u32 cmap24[16];
300 #endif
301 #ifdef FBCON_HAS_CFB32
302 u32 cmap32[16];
303 #endif
304 } cmap;
305 struct pm2_cursor *cursor;
306 } fb_info;
307
308 #ifdef CONFIG_FB_PM2_CVPPC
309 static int cvppc_detect(struct pm2fb_info*);
310 static void cvppc_init(struct pm2fb_info*);
311 #endif
312
313 #ifdef CONFIG_FB_PM2_PCI
314 static int pm2pci_detect(struct pm2fb_info*);
315 static void pm2pci_init(struct pm2fb_info*);
316 #endif
317
318 #ifdef PM2FB_HW_CURSOR
319 static void pm2fb_cursor(struct display *p, int mode, int x, int y);
320 static int pm2fb_set_font(struct display *d, int width, int height);
321 static struct pm2_cursor *pm2_init_cursor(struct pm2fb_info *fb);
322 static void pm2v_set_cursor_color(struct pm2fb_info *fb, u8 *red, u8 *green, u8 *blue);
323 static void pm2v_set_cursor_shape(struct pm2fb_info *fb);
324 static u8 cursor_color_map[2] = { 0, 0xff };
325 #else
326 #define pm2fb_cursor NULL
327 #define pm2fb_set_font NULL
328 #endif
329
330 /*
331 * Table of the supported Permedia2 based boards.
332 * Three hooks are defined for each board:
333 * detect(): should return 1 if the related board has been detected, 0
334 * otherwise. It should also fill the fields 'regions.fb_base',
335 * 'regions.fb_size', 'regions.rg_base' and 'memclock' in the
336 * passed pm2fb_info structure.
337 * init(): called immediately after the reset of the Permedia2 chip.
338 * It should reset the memory controller if needed (the MClk
339 * is set shortly afterwards by the caller).
340 * cleanup(): called after the driver has been unregistered.
341 *
342 * the init and cleanup pointers can be NULL.
343 */
344 static const struct {
345 int (*detect)(struct pm2fb_info*);
346 void (*init)(struct pm2fb_info*);
347 void (*cleanup)(struct pm2fb_info*);
348 char name[32];
349 } board_table[] = {
350 #ifdef CONFIG_FB_PM2_PCI
351 { pm2pci_detect, pm2pci_init, NULL, "Permedia2 PCI board" },
352 #endif
353 #ifdef CONFIG_FB_PM2_CVPPC
354 { cvppc_detect, cvppc_init, NULL, "CVisionPPC/BVisionPPC" },
355 #endif
356 { NULL, }
357 };
358
359 /*
360 * partial products for the supported horizontal resolutions.
361 */
362 #define PACKPP(p0,p1,p2) (((p2)<<6)|((p1)<<3)|(p0))
363 static const struct {
364 u16 width;
365 u16 pp;
366 } pp_table[] = {
367 { 32, PACKPP(1, 0, 0) }, { 64, PACKPP(1, 1, 0) },
368 { 96, PACKPP(1, 1, 1) }, { 128, PACKPP(2, 1, 1) },
369 { 160, PACKPP(2, 2, 1) }, { 192, PACKPP(2, 2, 2) },
370 { 224, PACKPP(3, 2, 1) }, { 256, PACKPP(3, 2, 2) },
371 { 288, PACKPP(3, 3, 1) }, { 320, PACKPP(3, 3, 2) },
372 { 384, PACKPP(3, 3, 3) }, { 416, PACKPP(4, 3, 1) },
373 { 448, PACKPP(4, 3, 2) }, { 512, PACKPP(4, 3, 3) },
374 { 544, PACKPP(4, 4, 1) }, { 576, PACKPP(4, 4, 2) },
375 { 640, PACKPP(4, 4, 3) }, { 768, PACKPP(4, 4, 4) },
376 { 800, PACKPP(5, 4, 1) }, { 832, PACKPP(5, 4, 2) },
377 { 896, PACKPP(5, 4, 3) }, { 1024, PACKPP(5, 4, 4) },
378 { 1056, PACKPP(5, 5, 1) }, { 1088, PACKPP(5, 5, 2) },
379 { 1152, PACKPP(5, 5, 3) }, { 1280, PACKPP(5, 5, 4) },
380 { 1536, PACKPP(5, 5, 5) }, { 1568, PACKPP(6, 5, 1) },
381 { 1600, PACKPP(6, 5, 2) }, { 1664, PACKPP(6, 5, 3) },
382 { 1792, PACKPP(6, 5, 4) }, { 2048, PACKPP(6, 5, 5) },
383 { 0, 0 } };
384
385 static void pm2fb_detect(void);
386 static int pm2fb_encode_fix(struct fb_fix_screeninfo* fix,
387 const void* par, struct fb_info_gen* info);
388 static int pm2fb_decode_var(const struct fb_var_screeninfo* var,
389 void* par, struct fb_info_gen* info);
390 static int pm2fb_encode_var(struct fb_var_screeninfo* var,
391 const void* par, struct fb_info_gen* info);
392 static void pm2fb_get_par(void* par, struct fb_info_gen* info);
393 static void pm2fb_set_par(const void* par, struct fb_info_gen* info);
394 static int pm2fb_getcolreg(unsigned regno,
395 unsigned* red, unsigned* green, unsigned* blue,
396 unsigned* transp, struct fb_info* info);
397 static int pm2fb_blank(int blank_mode, struct fb_info_gen* info);
398 static int pm2fb_pan_display(const struct fb_var_screeninfo* var,
399 struct fb_info_gen* info);
400 static void pm2fb_set_disp(const void* par, struct display* disp,
401 struct fb_info_gen* info);
402
403 static struct fbgen_hwswitch pm2fb_hwswitch={
404 pm2fb_detect, pm2fb_encode_fix, pm2fb_decode_var,
405 pm2fb_encode_var, pm2fb_get_par, pm2fb_set_par,
406 pm2fb_getcolreg, pm2fb_pan_display,
407 pm2fb_blank, pm2fb_set_disp
408 };
409
410
411 static int pm2fb_setcolreg(unsigned regno,
412 unsigned red, unsigned green, unsigned blue,
413 unsigned transp, struct fb_info* info);
414
415 static struct fb_ops pm2fb_ops={
416 .owner = THIS_MODULE,
417 .fb_get_fix = fbgen_get_fix,
418 .fb_get_var = fbgen_get_var,
419 .fb_set_var = fbgen_set_var,
420 .fb_get_cmap = fbgen_get_cmap,
421 .fb_set_cmap = fbgen_set_cmap,
422 .fb_pan_display =fbgen_pan_display,
423 .fb_setcolreg = pm2fb_setcolreg,
424 .fb_blank = fbgen_blank,
425 };
426
427 /***************************************************************************
428 * Begin of Permedia2 specific functions
429 ***************************************************************************/
430
431 inline static u32 RD32(unsigned char* base, s32 off) {
432
433 return fb_readl(base+off);
434 }
435
436 inline static void WR32(unsigned char* base, s32 off, u32 v) {
437
438 fb_writel(v, base+off);
439 }
440
441 inline static u32 pm2_RD(struct pm2fb_info* p, s32 off) {
442
443 return RD32(p->regions.v_regs, off);
444 }
445
446 inline static void pm2_WR(struct pm2fb_info* p, s32 off, u32 v) {
447
448 WR32(p->regions.v_regs, off, v);
449 }
450
451 inline static u32 pm2_RDAC_RD(struct pm2fb_info* p, s32 idx) {
452
453 int index = PM2R_RD_INDEXED_DATA;
454 switch (p->type) {
455 case PM2_TYPE_PERMEDIA2:
456 pm2_WR(p, PM2R_RD_PALETTE_WRITE_ADDRESS, idx);
457 break;
458 case PM2_TYPE_PERMEDIA2V:
459 pm2_WR(p, PM2VR_RD_INDEX_LOW, idx & 0xff);
460 index = PM2VR_RD_INDEXED_DATA;
461 break;
462 }
463 DEFRW();
464 return pm2_RD(p, index);
465 }
466
467 inline static void pm2_RDAC_WR(struct pm2fb_info* p, s32 idx,
468 u32 v) {
469
470 int index = PM2R_RD_INDEXED_DATA;
471 switch (p->type) {
472 case PM2_TYPE_PERMEDIA2:
473 pm2_WR(p, PM2R_RD_PALETTE_WRITE_ADDRESS, idx);
474 break;
475 case PM2_TYPE_PERMEDIA2V:
476 pm2_WR(p, PM2VR_RD_INDEX_LOW, idx & 0xff);
477 index = PM2VR_RD_INDEXED_DATA;
478 break;
479 }
480 DEFRW();
481 pm2_WR(p, index, v);
482 }
483
484 inline static u32 pm2v_RDAC_RD(struct pm2fb_info* p, s32 idx) {
485
486 pm2_WR(p, PM2VR_RD_INDEX_LOW, idx & 0xff);
487 DEFRW();
488 return pm2_RD(p, PM2VR_RD_INDEXED_DATA);
489 }
490
491 inline static void pm2v_RDAC_WR(struct pm2fb_info* p, s32 idx,
492 u32 v) {
493
494 pm2_WR(p, PM2VR_RD_INDEX_LOW, idx & 0xff);
495 DEFRW();
496 pm2_WR(p, PM2VR_RD_INDEXED_DATA, v);
497 }
498
499 #ifdef CONFIG_FB_PM2_FIFO_DISCONNECT
500 #define WAIT_FIFO(p,a)
501 #else
502 inline static void WAIT_FIFO(struct pm2fb_info* p, u32 a) {
503
504 while(pm2_RD(p, PM2R_IN_FIFO_SPACE)<a);
505 DEFRW();
506 }
507 #endif
508
509 static u32 partprod(u32 xres) {
510 int i;
511
512 for (i=0; pp_table[i].width && pp_table[i].width!=xres; i++);
513 if (!pp_table[i].width)
514 DPRINTK("invalid width %u\n", xres);
515 return pp_table[i].pp;
516 }
517
518 static u32 to3264(u32 timing, int bpp, int is64) {
519
520 switch (bpp) {
521 case 8:
522 timing=timing>>(2+is64);
523 break;
524 case 16:
525 timing=timing>>(1+is64);
526 break;
527 case 24:
528 timing=(timing*3)>>(2+is64);
529 break;
530 case 32:
531 if (is64)
532 timing=timing>>1;
533 break;
534 }
535 return timing;
536 }
537
538 static u32 from3264(u32 timing, int bpp, int is64) {
539
540 switch (bpp) {
541 case 8:
542 timing=timing<<(2+is64);
543 break;
544 case 16:
545 timing=timing<<(1+is64);
546 break;
547 case 24:
548 timing=(timing<<(2+is64))/3;
549 break;
550 case 32:
551 if (is64)
552 timing=timing<<1;
553 break;
554 }
555 return timing;
556 }
557
558 static void pm2_mnp(u32 clk, unsigned char* mm, unsigned char* nn,
559 unsigned char* pp) {
560 unsigned char m;
561 unsigned char n;
562 unsigned char p;
563 u32 f;
564 s32 curr;
565 s32 delta=100000;
566
567 *mm=*nn=*pp=0;
568 for (n=2; n<15; n++) {
569 for (m=2; m; m++) {
570 f=PM2_REFERENCE_CLOCK*m/n;
571 if (f>=150000 && f<=300000) {
572 for (p=0; p<5; p++, f>>=1) {
573 curr=clk>f?clk-f:f-clk;
574 if (curr<delta) {
575 delta=curr;
576 *mm=m;
577 *nn=n;
578 *pp=p;
579 }
580 }
581 }
582 }
583 }
584 }
585
586 static void pm2v_mnp(u32 clk, unsigned char* mm, unsigned char* nn,
587 unsigned char* pp) {
588 unsigned char m;
589 unsigned char n;
590 unsigned char p;
591 u32 f;
592 s32 delta=1000;
593
594 *mm=*nn=*pp=0;
595 for (n=1; n; n++) {
596 for (m=1; m; m++) {
597 for (p=0; p<2; p++) {
598 f=PM2_REFERENCE_CLOCK*n/(m * (1<<(p+1)));
599 if (clk>f-delta && clk<f+delta) {
600 delta=clk>f?clk-f:f-clk;
601 *mm=m;
602 *nn=n;
603 *pp=p;
604 }
605 }
606 }
607 }
608 }
609
610 static void wait_pm2(struct pm2fb_info* i) {
611
612 WAIT_FIFO(i, 1);
613 pm2_WR(i, PM2R_SYNC, 0);
614 DEFRW();
615 do {
616 while (pm2_RD(i, PM2R_OUT_FIFO_WORDS)==0);
617 DEFR();
618 } while (pm2_RD(i, PM2R_OUT_FIFO)!=PM2TAG(PM2R_SYNC));
619 }
620
621 static void pm2_set_memclock(struct pm2fb_info* info, u32 clk) {
622 int i;
623 unsigned char m, n, p;
624
625 pm2_mnp(clk, &m, &n, &p);
626 WAIT_FIFO(info, 10);
627 pm2_RDAC_WR(info, PM2I_RD_MEMORY_CLOCK_3, 6);
628 DEFW();
629 pm2_RDAC_WR(info, PM2I_RD_MEMORY_CLOCK_1, m);
630 pm2_RDAC_WR(info, PM2I_RD_MEMORY_CLOCK_2, n);
631 DEFW();
632 pm2_RDAC_WR(info, PM2I_RD_MEMORY_CLOCK_3, 8|p);
633 DEFW();
634 pm2_RDAC_RD(info, PM2I_RD_MEMORY_CLOCK_STATUS);
635 DEFR();
636 for (i=256; i &&
637 !(pm2_RD(info, PM2R_RD_INDEXED_DATA)&PM2F_PLL_LOCKED); i--);
638 }
639
640 static void pm2_set_pixclock(struct pm2fb_info* info, u32 clk) {
641 int i;
642 unsigned char m, n, p;
643
644 switch (info->type) {
645 case PM2_TYPE_PERMEDIA2:
646 pm2_mnp(clk, &m, &n, &p);
647 WAIT_FIFO(info, 8);
648 pm2_RDAC_WR(info, PM2I_RD_PIXEL_CLOCK_A3, 0);
649 DEFW();
650 pm2_RDAC_WR(info, PM2I_RD_PIXEL_CLOCK_A1, m);
651 pm2_RDAC_WR(info, PM2I_RD_PIXEL_CLOCK_A2, n);
652 DEFW();
653 pm2_RDAC_WR(info, PM2I_RD_PIXEL_CLOCK_A3, 8|p);
654 DEFW();
655 pm2_RDAC_RD(info, PM2I_RD_PIXEL_CLOCK_STATUS);
656 DEFR();
657 for (i=256;
658 i && !(pm2_RD(info, PM2R_RD_INDEXED_DATA)&PM2F_PLL_LOCKED);
659 i--)
660 ;
661 break;
662 case PM2_TYPE_PERMEDIA2V:
663 pm2v_mnp(clk/2, &m, &n, &p);
664 WAIT_FIFO(info, 8);
665 pm2_WR(info, PM2VR_RD_INDEX_HIGH,
666 PM2VI_RD_CLK0_PRESCALE >> 8);
667 pm2v_RDAC_WR(info, PM2VI_RD_CLK0_PRESCALE, m);
668 pm2v_RDAC_WR(info, PM2VI_RD_CLK0_FEEDBACK, n);
669 pm2v_RDAC_WR(info, PM2VI_RD_CLK0_POSTSCALE, p);
670 pm2_WR(info, PM2VR_RD_INDEX_HIGH, 0);
671 break;
672 }
673 }
674
675 static void clear_palette(struct pm2fb_info* p) {
676 int i=256;
677
678 WAIT_FIFO(p, 1);
679 pm2_WR(p, PM2R_RD_PALETTE_WRITE_ADDRESS, 0);
680 DEFW();
681 while (i--) {
682 WAIT_FIFO(p, 3);
683 pm2_WR(p, PM2R_RD_PALETTE_DATA, 0);
684 pm2_WR(p, PM2R_RD_PALETTE_DATA, 0);
685 pm2_WR(p, PM2R_RD_PALETTE_DATA, 0);
686 }
687 }
688
689 static void set_color(struct pm2fb_info* p, unsigned char regno,
690 unsigned char r, unsigned char g, unsigned char b) {
691
692 WAIT_FIFO(p, 4);
693 pm2_WR(p, PM2R_RD_PALETTE_WRITE_ADDRESS, regno);
694 DEFW();
695 pm2_WR(p, PM2R_RD_PALETTE_DATA, r);
696 DEFW();
697 pm2_WR(p, PM2R_RD_PALETTE_DATA, g);
698 DEFW();
699 pm2_WR(p, PM2R_RD_PALETTE_DATA, b);
700 }
701
702 static void set_aperture(struct pm2fb_info* i, struct pm2fb_par* p) {
703
704 WAIT_FIFO(i, 4);
705 #ifdef __LITTLE_ENDIAN
706 pm2_WR(i, PM2R_APERTURE_ONE, 0);
707 pm2_WR(i, PM2R_APERTURE_TWO, 0);
708 #else
709 switch (p->depth) {
710 case 8:
711 case 24:
712 pm2_WR(i, PM2R_APERTURE_ONE, 0);
713 pm2_WR(i, PM2R_APERTURE_TWO, 1);
714 break;
715 case 16:
716 pm2_WR(i, PM2R_APERTURE_ONE, 2);
717 pm2_WR(i, PM2R_APERTURE_TWO, 1);
718 break;
719 case 32:
720 pm2_WR(i, PM2R_APERTURE_ONE, 1);
721 pm2_WR(i, PM2R_APERTURE_TWO, 1);
722 break;
723 }
724 #endif
725 }
726
727 static void set_video(struct pm2fb_info* i, u32 video) {
728 u32 tmp;
729 u32 vsync;
730
731 vsync=video;
732
733 /*
734 * The hardware cursor needs +vsync to recognise vert retrace.
735 * We may not be using the hardware cursor, but the X Glint
736 * driver may well. So always set +hsync/+vsync and then set
737 * the RAMDAC to invert the sync if necessary.
738 */
739 vsync&=~(PM2F_HSYNC_MASK|PM2F_VSYNC_MASK);
740 vsync|=PM2F_HSYNC_ACT_HIGH|PM2F_VSYNC_ACT_HIGH;
741
742 WAIT_FIFO(i, 5);
743 pm2_WR(i, PM2R_VIDEO_CONTROL, vsync);
744
745 switch (i->type) {
746 case PM2_TYPE_PERMEDIA2:
747 tmp = PM2F_RD_PALETTE_WIDTH_8;
748 if ((video & PM2F_HSYNC_MASK) == PM2F_HSYNC_ACT_LOW)
749 tmp |= 4; /* invert hsync */
750 if ((video & PM2F_VSYNC_MASK) == PM2F_VSYNC_ACT_LOW)
751 tmp |= 8; /* invert vsync */
752 pm2_RDAC_WR(i, PM2I_RD_MISC_CONTROL, tmp);
753 break;
754 case PM2_TYPE_PERMEDIA2V:
755 tmp = 0;
756 if ((video & PM2F_HSYNC_MASK) == PM2F_HSYNC_ACT_LOW)
757 tmp |= 1; /* invert hsync */
758 if ((video & PM2F_VSYNC_MASK) == PM2F_VSYNC_ACT_LOW)
759 tmp |= 4; /* invert vsync */
760 pm2v_RDAC_WR(i, PM2VI_RD_SYNC_CONTROL, tmp);
761 pm2v_RDAC_WR(i, PM2VI_RD_MISC_CONTROL, 1);
762 break;
763 }
764 }
765
766 static void get_screen(struct pm2fb_info* i, struct pm2fb_par* p) {
767 u32 clrmode;
768 u32 readpx;
769 u32 misc;
770
771 memset(p, 0, sizeof(struct pm2fb_par));
772 p->base=pm2_RD(i, PM2R_SCREEN_BASE);
773 p->video=pm2_RD(i, PM2R_VIDEO_CONTROL) & VIDEO_MASK;
774 switch (i->type) {
775 case PM2_TYPE_PERMEDIA2:
776 misc=pm2_RDAC_RD(i, PM2I_RD_MISC_CONTROL);
777 if ( misc & 4 )
778 /* Hsync is actually low */
779 p->video |= PM2F_HSYNC_ACT_LOW;
780 if ( misc & 8 )
781 /* Vsync is actually low */
782 p->video |= PM2F_VSYNC_ACT_LOW;
783 break;
784 case PM2_TYPE_PERMEDIA2V:
785 misc=pm2_RDAC_RD(i, PM2VI_RD_SYNC_CONTROL);
786 if ( misc & 1 )
787 /* Hsync is actually low */
788 p->video |= PM2F_HSYNC_ACT_LOW;
789 if ( misc & 4 )
790 /* Vsync is actually low */
791 p->video |= PM2F_VSYNC_ACT_LOW;
792 break;
793 }
794 p->width=pm2_RD(i, PM2R_SCREEN_SIZE) & 0xffff;
795 p->height=pm2_RD(i, PM2R_SCREEN_SIZE) >> 16;
796 p->htotal=pm2_RD(i, PM2R_H_TOTAL);
797 p->hsstart=pm2_RD(i, PM2R_HS_START);
798 p->hsend=pm2_RD(i, PM2R_HS_END);
799 p->hbend=pm2_RD(i, PM2R_HB_END);
800 p->vtotal=pm2_RD(i, PM2R_V_TOTAL);
801 p->vsstart=pm2_RD(i, PM2R_VS_START);
802 p->vsend=pm2_RD(i, PM2R_VS_END);
803 p->vbend=pm2_RD(i, PM2R_VB_END);
804 p->stride=pm2_RD(i, PM2R_SCREEN_STRIDE);
805 clrmode=pm2_RDAC_RD(i, PM2I_RD_COLOR_MODE);
806 readpx=pm2_RD(i, PM2R_FB_READ_PIXEL);
807 if (clrmode & PM2F_RD_GUI_ACTIVE) {
808 clrmode &= ~(PM2F_RD_COLOR_MODE_RGB|PM2F_RD_GUI_ACTIVE);
809 if (clrmode==0 && readpx==0)
810 p->depth=8;
811 else if (clrmode==(PM2F_RD_TRUECOLOR|0x06) && readpx==1)
812 p->depth=16;
813 else if (clrmode==(PM2F_RD_TRUECOLOR|0x08) && readpx==2)
814 p->depth=32;
815 else if (clrmode==(PM2F_RD_TRUECOLOR|0x09) && readpx==4)
816 p->depth=24;
817 }
818 /*
819 * Somehow I have to manage this unretrievable fields.
820 * To say the truth, 'flags' field ought to be somewhere else.
821 */
822 if (i->current_par_valid) {
823 p->pixclock=i->current_par.pixclock;
824 p->flags=i->current_par.flags;
825 }
826 }
827
828 static void set_screen(struct pm2fb_info* i, struct pm2fb_par* p) {
829 u32 clrmode=PM2F_RD_COLOR_MODE_RGB;
830 u32 txtmap=0;
831 u32 pixsize=0;
832 u32 clrformat=0;
833 u32 xres;
834
835 if (i->type == PM2_TYPE_PERMEDIA2V) {
836 WAIT_FIFO(i, 1);
837 pm2_WR(i, PM2VR_RD_INDEX_HIGH, 0);
838 }
839 xres=(p->width+31)&~31;
840 set_aperture(i, p);
841 DEFRW();
842 WAIT_FIFO(i, 19);
843 pm2_RDAC_WR(i, PM2I_RD_COLOR_KEY_CONTROL, p->depth==8?0:
844 PM2F_COLOR_KEY_TEST_OFF);
845 switch (p->depth) {
846 case 8:
847 pm2_WR(i, PM2R_FB_READ_PIXEL, 0);
848 clrformat=0x0e;
849 break;
850 case 16:
851 pm2_WR(i, PM2R_FB_READ_PIXEL, 1);
852 clrmode|=PM2F_RD_TRUECOLOR|0x06;
853 txtmap=PM2F_TEXTEL_SIZE_16;
854 pixsize=1;
855 clrformat=0x70;
856 break;
857 case 32:
858 pm2_WR(i, PM2R_FB_READ_PIXEL, 2);
859 clrmode|=PM2F_RD_TRUECOLOR|0x08;
860 txtmap=PM2F_TEXTEL_SIZE_32;
861 pixsize=2;
862 clrformat=0x20;
863 break;
864 case 24:
865 pm2_WR(i, PM2R_FB_READ_PIXEL, 4);
866 clrmode|=PM2F_RD_TRUECOLOR|0x09;
867 #ifndef PM2FB_BE_APERTURE
868 clrmode&=~PM2F_RD_COLOR_MODE_RGB;
869 #endif
870 txtmap=PM2F_TEXTEL_SIZE_24;
871 pixsize=4;
872 clrformat=0x20;
873 break;
874 }
875 pm2_WR(i, PM2R_FB_WRITE_MODE, PM2F_FB_WRITE_ENABLE);
876 pm2_WR(i, PM2R_FB_READ_MODE, partprod(xres));
877 pm2_WR(i, PM2R_LB_READ_MODE, partprod(xres));
878 pm2_WR(i, PM2R_TEXTURE_MAP_FORMAT, txtmap|partprod(xres));
879 pm2_WR(i, PM2R_H_TOTAL, p->htotal);
880 pm2_WR(i, PM2R_HS_START, p->hsstart);
881 pm2_WR(i, PM2R_HS_END, p->hsend);
882 pm2_WR(i, PM2R_HG_END, p->hbend);
883 pm2_WR(i, PM2R_HB_END, p->hbend);
884 pm2_WR(i, PM2R_V_TOTAL, p->vtotal);
885 pm2_WR(i, PM2R_VS_START, p->vsstart);
886 pm2_WR(i, PM2R_VS_END, p->vsend);
887 pm2_WR(i, PM2R_VB_END, p->vbend);
888 pm2_WR(i, PM2R_SCREEN_STRIDE, p->stride);
889 DEFW();
890 pm2_WR(i, PM2R_WINDOW_ORIGIN, 0);
891 pm2_WR(i, PM2R_SCREEN_SIZE, (p->height<<16)|p->width);
892 pm2_WR(i, PM2R_SCISSOR_MODE, PM2F_SCREEN_SCISSOR_ENABLE);
893 DEFW();
894 pm2_WR(i, PM2R_SCREEN_BASE, p->base);
895 DEFW();
896 set_video(i, p->video);
897 WAIT_FIFO(i, 4);
898 switch (i->type) {
899 case PM2_TYPE_PERMEDIA2:
900 pm2_RDAC_WR(i, PM2I_RD_COLOR_MODE, PM2F_RD_COLOR_MODE_RGB|
901 PM2F_RD_GUI_ACTIVE|clrmode);
902 break;
903 case PM2_TYPE_PERMEDIA2V:
904 pm2v_RDAC_WR(i, PM2VI_RD_PIXEL_SIZE, pixsize);
905 pm2v_RDAC_WR(i, PM2VI_RD_COLOR_FORMAT, clrformat);
906 break;
907 }
908 pm2_set_pixclock(i, p->pixclock);
909 }
910
911 static int screen_is_valid(struct pm2fb_info* i) {
912 struct pm2fb_par actual;
913
914 get_screen(i, &actual);
915 return i->current_par_valid &&
916 !memcmp(&actual, &i->current_par, sizeof(struct pm2fb_par));
917 }
918
919 /*
920 * copy with packed pixels (8/16bpp only).
921 */
922 static void pm2fb_pp_copy(struct pm2fb_info* i, s32 xsrc, s32 ysrc,
923 s32 x, s32 y, s32 w, s32 h) {
924 s32 scale=i->current_par.depth==8?2:1;
925 s32 offset;
926
927 if (!w || !h)
928 return;
929 WAIT_FIFO(i, 6);
930 pm2_WR(i, PM2R_CONFIG, PM2F_CONFIG_FB_WRITE_ENABLE|
931 PM2F_CONFIG_FB_PACKED_DATA|
932 PM2F_CONFIG_FB_READ_SOURCE_ENABLE);
933 pm2_WR(i, PM2R_FB_SOURCE_DELTA, ((ysrc-y)&0xfff)<<16|
934 ((xsrc-x)&0xfff));
935 offset=(x&0x3)-(xsrc&0x3);
936 pm2_WR(i, PM2R_RECTANGLE_ORIGIN, (y<<16)|(x>>scale));
937 pm2_WR(i, PM2R_RECTANGLE_SIZE, (h<<16)|((w+7)>>scale));
938 pm2_WR(i, PM2R_PACKED_DATA_LIMITS, (offset<<29)|(x<<16)|(x+w));
939 DEFW();
940 pm2_WR(i, PM2R_RENDER, PM2F_RENDER_RECTANGLE|
941 (x<xsrc?PM2F_INCREASE_X:0)|
942 (y<ysrc?PM2F_INCREASE_Y:0));
943 wait_pm2(i);
944 }
945
946 /*
947 * block operation. copy=0: rectangle fill, copy=1: rectangle copy.
948 */
949 static void pm2fb_block_op(struct pm2fb_info* i, int copy,
950 s32 xsrc, s32 ysrc,
951 s32 x, s32 y, s32 w, s32 h,
952 u32 color) {
953
954 if (!w || !h)
955 return;
956 WAIT_FIFO(i, 5);
957 pm2_WR(i, PM2R_CONFIG, PM2F_CONFIG_FB_WRITE_ENABLE|
958 (copy?PM2F_CONFIG_FB_READ_SOURCE_ENABLE:0));
959 if (copy)
960 pm2_WR(i, PM2R_FB_SOURCE_DELTA, ((ysrc-y)&0xfff)<<16|
961 ((xsrc-x)&0xfff));
962 else
963 pm2_WR(i, PM2R_FB_BLOCK_COLOR, color);
964 pm2_WR(i, PM2R_RECTANGLE_ORIGIN, (y<<16)|x);
965 pm2_WR(i, PM2R_RECTANGLE_SIZE, (h<<16)|w);
966 DEFW();
967 pm2_WR(i, PM2R_RENDER, PM2F_RENDER_RECTANGLE|
968 (x<xsrc?PM2F_INCREASE_X:0)|
969 (y<ysrc?PM2F_INCREASE_Y:0)|
970 (copy?0:PM2F_RENDER_FASTFILL));
971 wait_pm2(i);
972 }
973
974 /***************************************************************************
975 * Begin of generic initialization functions
976 ***************************************************************************/
977
978 static void reset_units(struct pm2fb_info* p) {
979
980 WAIT_FIFO(p, 52);
981 pm2_WR(p, PM2R_CHIP_CONFIG, pm2_RD(p, PM2R_CHIP_CONFIG)&
982 ~(PM2F_VGA_ENABLE|PM2F_VGA_FIXED));
983 pm2_WR(p, PM2R_BYPASS_WRITE_MASK, ~(0L));
984 pm2_WR(p, PM2R_FRAMEBUFFER_WRITE_MASK, ~(0L));
985 pm2_WR(p, PM2R_FIFO_CONTROL, 0);
986 pm2_WR(p, PM2R_APERTURE_ONE, 0);
987 pm2_WR(p, PM2R_APERTURE_TWO, 0);
988 pm2_WR(p, PM2R_RASTERIZER_MODE, 0);
989 pm2_WR(p, PM2R_DELTA_MODE, PM2F_DELTA_ORDER_RGB);
990 pm2_WR(p, PM2R_LB_READ_FORMAT, 0);
991 pm2_WR(p, PM2R_LB_WRITE_FORMAT, 0);
992 pm2_WR(p, PM2R_LB_READ_MODE, 0);
993 pm2_WR(p, PM2R_LB_SOURCE_OFFSET, 0);
994 pm2_WR(p, PM2R_FB_SOURCE_OFFSET, 0);
995 pm2_WR(p, PM2R_FB_PIXEL_OFFSET, 0);
996 pm2_WR(p, PM2R_FB_WINDOW_BASE, 0);
997 pm2_WR(p, PM2R_LB_WINDOW_BASE, 0);
998 pm2_WR(p, PM2R_FB_SOFT_WRITE_MASK, ~(0L));
999 pm2_WR(p, PM2R_FB_HARD_WRITE_MASK, ~(0L));
1000 pm2_WR(p, PM2R_FB_READ_PIXEL, 0);
1001 pm2_WR(p, PM2R_DITHER_MODE, 0);
1002 pm2_WR(p, PM2R_AREA_STIPPLE_MODE, 0);
1003 pm2_WR(p, PM2R_DEPTH_MODE, 0);
1004 pm2_WR(p, PM2R_STENCIL_MODE, 0);
1005 pm2_WR(p, PM2R_TEXTURE_ADDRESS_MODE, 0);
1006 pm2_WR(p, PM2R_TEXTURE_READ_MODE, 0);
1007 pm2_WR(p, PM2R_TEXEL_LUT_MODE, 0);
1008 pm2_WR(p, PM2R_YUV_MODE, 0);
1009 pm2_WR(p, PM2R_COLOR_DDA_MODE, 0);
1010 pm2_WR(p, PM2R_TEXTURE_COLOR_MODE, 0);
1011 pm2_WR(p, PM2R_FOG_MODE, 0);
1012 pm2_WR(p, PM2R_ALPHA_BLEND_MODE, 0);
1013 pm2_WR(p, PM2R_LOGICAL_OP_MODE, 0);
1014 pm2_WR(p, PM2R_STATISTICS_MODE, 0);
1015 pm2_WR(p, PM2R_SCISSOR_MODE, 0);
1016 pm2_WR(p, PM2R_FILTER_MODE, PM2F_SYNCHRONIZATION);
1017 switch (p->type) {
1018 case PM2_TYPE_PERMEDIA2:
1019 pm2_RDAC_WR(p, PM2I_RD_MODE_CONTROL, 0); /* no overlay */
1020 pm2_RDAC_WR(p, PM2I_RD_CURSOR_CONTROL, 0);
1021 pm2_RDAC_WR(p, PM2I_RD_MISC_CONTROL, PM2F_RD_PALETTE_WIDTH_8);
1022 break;
1023 case PM2_TYPE_PERMEDIA2V:
1024 pm2v_RDAC_WR(p, PM2VI_RD_MISC_CONTROL, 1); /* 8bit */
1025 break;
1026 }
1027 pm2_RDAC_WR(p, PM2I_RD_COLOR_KEY_CONTROL, 0);
1028 pm2_RDAC_WR(p, PM2I_RD_OVERLAY_KEY, 0);
1029 pm2_RDAC_WR(p, PM2I_RD_RED_KEY, 0);
1030 pm2_RDAC_WR(p, PM2I_RD_GREEN_KEY, 0);
1031 pm2_RDAC_WR(p, PM2I_RD_BLUE_KEY, 0);
1032 }
1033
1034 static void pm2fb_reset(struct pm2fb_info* p) {
1035
1036 if (p->type == PM2_TYPE_PERMEDIA2V)
1037 pm2_WR(p, PM2VR_RD_INDEX_HIGH, 0);
1038 pm2_WR(p, PM2R_RESET_STATUS, 0);
1039 DEFRW();
1040 while (pm2_RD(p, PM2R_RESET_STATUS)&PM2F_BEING_RESET);
1041 DEFRW();
1042 #ifdef CONFIG_FB_PM2_FIFO_DISCONNECT
1043 DPRINTK("FIFO disconnect enabled\n");
1044 pm2_WR(p, PM2R_FIFO_DISCON, 1);
1045 DEFRW();
1046 #endif
1047 if (board_table[p->board].init)
1048 board_table[p->board].init(p);
1049 reset_units(p);
1050 clear_palette(p);
1051 if (p->memclock)
1052 pm2_set_memclock(p, p->memclock);
1053 }
1054
1055 static int __init pm2fb_conf(struct pm2fb_info* p) {
1056
1057 for (p->board=0; board_table[p->board].detect &&
1058 !(board_table[p->board].detect(p)); p->board++);
1059 if (!board_table[p->board].detect) {
1060 DPRINTK("no board found.\n");
1061 return 0;
1062 }
1063 DPRINTK("found board: %s\n", board_table[p->board].name);
1064
1065 p->regions.p_fb=p->regions.fb_base;
1066 if (!request_mem_region((unsigned long )p->regions.p_fb,
1067 p->regions.fb_size, "pm2fb")) {
1068 printk (KERN_ERR "pm2fb: cannot reserve fb memory, abort.\n");
1069 return 0;
1070 }
1071 p->regions.v_fb=MMAP(p->regions.p_fb, p->regions.fb_size);
1072
1073 #ifndef PM2FB_BE_APERTURE
1074 p->regions.p_regs=p->regions.rg_base;
1075 #else
1076 p->regions.p_regs=p->regions.rg_base+PM2_REGS_SIZE;
1077 #endif
1078 if (!request_mem_region((unsigned long )p->regions.p_regs,
1079 PM2_REGS_SIZE, "pm2fb")) {
1080 printk (KERN_ERR "pm2fb: cannot reserve mmio memory, abort.\n");
1081 UNMAP(p->regions.v_fb, p->regions.fb_size);
1082 return 0;
1083 }
1084 p->regions.v_regs=MMAP(p->regions.p_regs, PM2_REGS_SIZE);
1085
1086 #ifdef PM2FB_HW_CURSOR
1087 p->cursor = pm2_init_cursor(p);
1088 #endif
1089 return 1;
1090 }
1091
1092 /***************************************************************************
1093 * Begin of per-board initialization functions
1094 ***************************************************************************/
1095
1096 /*
1097 * Phase5 CvisionPPC/BVisionPPC
1098 */
1099 #ifdef CONFIG_FB_PM2_CVPPC
1100 static int cvppc_PCI_init(struct cvppc_par* p) {
1101 extern u32 powerup_PCI_present;
1102
1103 if (!powerup_PCI_present) {
1104 DPRINTK("no PCI bridge detected\n");
1105 return 0;
1106 }
1107 if (!(p->pci_config=MMAP(CVPPC_PCI_CONFIG, 256))) {
1108 DPRINTK("unable to map PCI config region\n");
1109 return 0;
1110 }
1111 if (RD32(p->pci_config, PCI_VENDOR_ID)!=
1112 ((PCI_DEVICE_ID_TI_TVP4020<<16)|PCI_VENDOR_ID_TI)) {
1113 DPRINTK("bad vendorID/deviceID\n");
1114 return 0;
1115 }
1116 if (!(p->pci_bridge=MMAP(CSPPC_PCI_BRIDGE, 256))) {
1117 DPRINTK("unable to map PCI bridge\n");
1118 return 0;
1119 }
1120 WR32(p->pci_bridge, CSPPC_BRIDGE_ENDIAN, CSPPCF_BRIDGE_BIG_ENDIAN);
1121 DEFW();
1122 if (pm2fb_options.flags & OPTF_OLD_MEM)
1123 WR32(p->pci_config, PCI_CACHE_LINE_SIZE, 0xff00);
1124 WR32(p->pci_config, PCI_BASE_ADDRESS_0, CVPPC_REGS_REGION);
1125 WR32(p->pci_config, PCI_BASE_ADDRESS_1, CVPPC_FB_APERTURE_ONE);
1126 WR32(p->pci_config, PCI_BASE_ADDRESS_2, CVPPC_FB_APERTURE_TWO);
1127 WR32(p->pci_config, PCI_ROM_ADDRESS, CVPPC_ROM_ADDRESS);
1128 DEFW();
1129 WR32(p->pci_config, PCI_COMMAND, 0xef000000 |
1130 PCI_COMMAND_IO |
1131 PCI_COMMAND_MEMORY |
1132 PCI_COMMAND_MASTER);
1133 return 1;
1134 }
1135
1136 static int __init cvppc_detect(struct pm2fb_info* p) {
1137
1138 if (!cvppc_PCI_init(&p->board_par.cvppc))
1139 return 0;
1140 p->type=PM2_TYPE_PERMEDIA2;
1141 p->regions.fb_base=CVPPC_FB_APERTURE_ONE;
1142 p->regions.fb_size=CVPPC_FB_SIZE;
1143 p->regions.rg_base=CVPPC_REGS_REGION;
1144 p->memclock=CVPPC_MEMCLOCK;
1145 return 1;
1146 }
1147
1148 static void cvppc_init(struct pm2fb_info* p) {
1149
1150 WAIT_FIFO(p, 3);
1151 pm2_WR(p, PM2R_MEM_CONTROL, 0);
1152 pm2_WR(p, PM2R_BOOT_ADDRESS, 0x30);
1153 DEFW();
1154 if (pm2fb_options.flags & OPTF_OLD_MEM)
1155 pm2_WR(p, PM2R_MEM_CONFIG, CVPPC_MEM_CONFIG_OLD);
1156 else
1157 pm2_WR(p, PM2R_MEM_CONFIG, CVPPC_MEM_CONFIG_NEW);
1158 }
1159 #endif /* CONFIG_FB_PM2_CVPPC */
1160
1161 /*
1162 * Generic PCI detection routines
1163 */
1164 #ifdef CONFIG_FB_PM2_PCI
1165 struct {
1166 unsigned short vendor, device;
1167 char *name;
1168 pm2type_t type;
1169 } pm2pci_cards[] __initdata = {
1170 { PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_TVP4020,
1171 "Texas Instruments TVP4020", PM2_TYPE_PERMEDIA2 },
1172 { PCI_VENDOR_ID_3DLABS, PCI_DEVICE_ID_3DLABS_PERMEDIA2,
1173 "3dLabs Permedia 2", PM2_TYPE_PERMEDIA2 },
1174 { PCI_VENDOR_ID_3DLABS, PCI_DEVICE_ID_3DLABS_PERMEDIA2V,
1175 "3dLabs Permedia 2v", PM2_TYPE_PERMEDIA2V },
1176 { 0, 0 }
1177 };
1178
1179 static int __init pm2pci_detect(struct pm2fb_info* p) {
1180 struct pm2pci_par* pci=&p->board_par.pci;
1181 struct pci_dev* dev = NULL;
1182 int i;
1183 unsigned char* m;
1184 #ifdef __sparc__
1185 struct pcidev_cookie *pcp;
1186 #endif
1187
1188 memset(pci, 0, sizeof(struct pm2pci_par));
1189 DPRINTK("scanning PCI bus for known chipsets...\n");
1190
1191 while ((dev = pci_find_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) {
1192 for (i = 0; pm2pci_cards[i].vendor; i++)
1193 if (pm2pci_cards[i].vendor == dev->vendor &&
1194 pm2pci_cards[i].device == dev->device) {
1195 pci->dev = dev;
1196 p->type = pm2pci_cards[i].type;
1197 DPRINTK("... found %s\n", pm2pci_cards[i].name);
1198 break;
1199 }
1200 if (pci->dev)
1201 break;
1202 }
1203 if (!pci->dev) {
1204 DPRINTK("no PCI board found.\n");
1205 return 0;
1206 }
1207 DPRINTK("PCI board @%08lx %08lx %08lx rom %08lx\n",
1208 pci->dev->resource[0].start,
1209 pci->dev->resource[1].start,
1210 pci->dev->resource[2].start,
1211 pci->dev->resource[PCI_ROM_RESOURCE].start);
1212 #ifdef __sparc__
1213 p->regions.rg_base= pci->dev->resource[0].start;
1214 p->regions.fb_base= pci->dev->resource[1].start;
1215 pcp = pci->dev->sysdata;
1216 /* If the user has not asked for a particular mode, lets guess */
1217 if (pcp->prom_node &&
1218 !(pm2fb_options.flags & (OPTF_USER|OPTF_USER_VAR))) {
1219 char timing[256], *q, *r;
1220 unsigned long w, h;
1221 int i;
1222 prom_getstring(pcp->prom_node, "timing-numbers", timing, 256);
1223 /* FIXME: Find out what the actual pixclock is
1224 * and other values as well */
1225 if (timing[0]) {
1226 w = simple_strtoul(timing, &q, 0);
1227 h = 0;
1228 if (q == timing) w = 0;
1229 if (w) {
1230 for (i = 0; i < 3; i++) {
1231 for (r = q;
1232 *r && (*r < '0' || *r > '9');
1233 r++)
1234 ;
1235 simple_strtoul(r, &q, 0);
1236 if (r == q) break;
1237 }
1238 if (i < 3) w = 0;
1239 }
1240 if (w) {
1241 for (r = q; *r && (*r < '0' || *r > '9'); r++);
1242 h = simple_strtoul(r, &q, 0);
1243 if (r == q) w = 0;
1244 }
1245 if (w == 640 && h == 480) w = 0;
1246 if (w) {
1247 for (i=0; user_mode[i].name[0] &&
1248 (w != user_mode[i].par.width ||
1249 h != user_mode[i].par.height); i++);
1250 if (user_mode[i].name[0])
1251 memcpy(&p->current_par,
1252 &user_mode[i].par,
1253 sizeof(user_mode[i].par));
1254 }
1255 }
1256 }
1257 #else
1258 if (pm2fb_options.flags & OPTF_VIRTUAL) {
1259 p->regions.rg_base = __pa(pci_resource_start(pci->dev, 0));
1260 p->regions.fb_base = __pa(pci_resource_start(pci->dev, 1));
1261 }
1262 else {
1263 p->regions.rg_base = pci_resource_start(pci->dev, 0);
1264 p->regions.fb_base = pci_resource_start(pci->dev, 1);
1265 }
1266 #endif
1267 #ifdef PM2FB_BE_APERTURE
1268 p->regions.rg_base += PM2_REGS_SIZE;
1269 #endif
1270 if ((m=MMAP(p->regions.rg_base, PM2_REGS_SIZE))) {
1271 pci->mem_control=RD32(m, PM2R_MEM_CONTROL);
1272 pci->boot_address=RD32(m, PM2R_BOOT_ADDRESS);
1273 pci->mem_config=RD32(m, PM2R_MEM_CONFIG);
1274 switch (pci->mem_config & PM2F_MEM_CONFIG_RAM_MASK) {
1275 case PM2F_MEM_BANKS_1:
1276 p->regions.fb_size=0x200000;
1277 break;
1278 case PM2F_MEM_BANKS_2:
1279 p->regions.fb_size=0x400000;
1280 break;
1281 case PM2F_MEM_BANKS_3:
1282 p->regions.fb_size=0x600000;
1283 break;
1284 case PM2F_MEM_BANKS_4:
1285 p->regions.fb_size=0x800000;
1286 break;
1287 }
1288 p->memclock=CVPPC_MEMCLOCK;
1289 UNMAP(m, PM2_REGS_SIZE);
1290 return 1;
1291 }
1292 DPRINTK("MMAP() failed.\n");
1293 return 0;
1294 }
1295
1296 static void pm2pci_init(struct pm2fb_info* p) {
1297 struct pm2pci_par* pci=&p->board_par.pci;
1298
1299 WAIT_FIFO(p, 3);
1300 pm2_WR(p, PM2R_MEM_CONTROL, pci->mem_control);
1301 pm2_WR(p, PM2R_BOOT_ADDRESS, pci->boot_address);
1302 DEFW();
1303 pm2_WR(p, PM2R_MEM_CONFIG, pci->mem_config);
1304 }
1305 #endif /* CONFIG_FB_PM2_PCI */
1306
1307 /***************************************************************************
1308 * Console hw acceleration
1309 ***************************************************************************/
1310
1311 static int pm2fb_blank(int blank_mode, struct fb_info_gen* info) {
1312 struct pm2fb_info* i=(struct pm2fb_info* )info;
1313 u32 video;
1314
1315 if (!i->current_par_valid)
1316 return 1;
1317 video=i->current_par.video;
1318 if (blank_mode>0) {
1319 i->is_blank=1;
1320 switch (blank_mode-1) {
1321 case VESA_NO_BLANKING: /* FIXME */
1322 video=video&~(PM2F_VIDEO_ENABLE);
1323 break;
1324 case VESA_HSYNC_SUSPEND:
1325 video=video&~(PM2F_HSYNC_MASK|
1326 PM2F_BLANK_LOW);
1327 break;
1328 case VESA_VSYNC_SUSPEND:
1329 video=video&~(PM2F_VSYNC_MASK|
1330 PM2F_BLANK_LOW);
1331 break;
1332 case VESA_POWERDOWN:
1333 video=video&~(PM2F_VSYNC_MASK|
1334 PM2F_HSYNC_MASK|
1335 PM2F_BLANK_LOW);
1336 break;
1337 }
1338 }
1339 else
1340 i->is_blank=0;
1341 set_video(i, video);
1342 return 0;
1343 }
1344
1345 static int pm2fb_pan_display(const struct fb_var_screeninfo* var,
1346 struct fb_info_gen* info) {
1347 struct pm2fb_info* i=(struct pm2fb_info* )info;
1348
1349 if (!i->current_par_valid)
1350 return -EINVAL;
1351 i->current_par.base=to3264(var->yoffset*i->current_par.width+
1352 var->xoffset, i->current_par.depth, 1);
1353 WAIT_FIFO(i, 1);
1354 pm2_WR(i, PM2R_SCREEN_BASE, i->current_par.base);
1355 return 0;
1356 }
1357
1358 static void pm2fb_pp_bmove(struct display* p, int sy, int sx,
1359 int dy, int dx, int height, int width) {
1360
1361 if (fontwidthlog(p)) {
1362 sx=sx<<fontwidthlog(p);
1363 dx=dx<<fontwidthlog(p);
1364 width=width<<fontwidthlog(p);
1365 }
1366 else {
1367 sx=sx*fontwidth(p);
1368 dx=dx*fontwidth(p);
1369 width=width*fontwidth(p);
1370 }
1371 sy=sy*fontheight(p);
1372 dy=dy*fontheight(p);
1373 height=height*fontheight(p);
1374 pm2fb_pp_copy((struct pm2fb_info* )p->fb_info, sx, sy, dx,
1375 dy, width, height);
1376 }
1377
1378 static void pm2fb_bmove(struct display* p, int sy, int sx,
1379 int dy, int dx, int height, int width) {
1380
1381 if (fontwidthlog(p)) {
1382 sx=sx<<fontwidthlog(p);
1383 dx=dx<<fontwidthlog(p);
1384 width=width<<fontwidthlog(p);
1385 }
1386 else {
1387 sx=sx*fontwidth(p);
1388 dx=dx*fontwidth(p);
1389 width=width*fontwidth(p);
1390 }
1391 sy=sy*fontheight(p);
1392 dy=dy*fontheight(p);
1393 height=height*fontheight(p);
1394 pm2fb_block_op((struct pm2fb_info* )p->fb_info, 1, sx, sy, dx, dy,
1395 width, height, 0);
1396 }
1397
1398 #ifdef FBCON_HAS_CFB8
1399 static void pm2fb_clear8(struct vc_data* conp, struct display* p,
1400 int sy, int sx, int height, int width) {
1401 u32 c;
1402
1403 sx=sx*fontwidth(p);
1404 width=width*fontwidth(p);
1405 sy=sy*fontheight(p);
1406 height=height*fontheight(p);
1407 c=attr_bgcol_ec(p, conp);
1408 c|=c<<8;
1409 c|=c<<16;
1410 pm2fb_block_op((struct pm2fb_info* )p->fb_info, 0, 0, 0, sx, sy,
1411 width, height, c);
1412 }
1413
1414 static void pm2fb_clear_margins8(struct vc_data* conp, struct display* p,
1415 int bottom_only) {
1416 u32 c;
1417 u32 sx;
1418 u32 sy;
1419
1420 c=attr_bgcol_ec(p, conp);
1421 c|=c<<8;
1422 c|=c<<16;
1423 sx=conp->vc_cols*fontwidth(p);
1424 sy=conp->vc_rows*fontheight(p);
1425 if (!bottom_only)
1426 pm2fb_block_op((struct pm2fb_info* )p->fb_info, 0, 0, 0,
1427 sx, 0, (p->var.xres-sx), p->var.yres_virtual, c);
1428 pm2fb_block_op((struct pm2fb_info* )p->fb_info, 0, 0, 0,
1429 0, p->var.yoffset+sy, sx, p->var.yres-sy, c);
1430 }
1431
1432 static struct display_switch pm2_cfb8 = {
1433 .setup = fbcon_cfb8_setup,
1434 .bmove = pm2fb_pp_bmove,
1435 #ifdef __alpha__
1436 /* Not sure why, but this works and the other does not. */
1437 /* Also, perhaps we need a separate routine to wait for the
1438 blitter to stop before doing this? */
1439 /* In addition, maybe we need to do this for 16 and 32 bit depths? */
1440 .clear = fbcon_cfb8_clear,
1441 #else
1442 .clear = pm2fb_clear8,
1443 #endif
1444 .putc = fbcon_cfb8_putc,
1445 .putcs = fbcon_cfb8_putcs,
1446 .revc = fbcon_cfb8_revc,
1447 .cursor = pm2fb_cursor,
1448 .set_font = pm2fb_set_font,
1449 .clear_margins = pm2fb_clear_margins8,
1450 .fontwidthmask = FONTWIDTH(4)|FONTWIDTH(8)|FONTWIDTH(12)|FONTWIDTH(16) };
1451 #endif /* FBCON_HAS_CFB8 */
1452
1453 #ifdef FBCON_HAS_CFB16
1454 static void pm2fb_clear16(struct vc_data* conp, struct display* p,
1455 int sy, int sx, int height, int width) {
1456 u32 c;
1457
1458 sx=sx*fontwidth(p);
1459 width=width*fontwidth(p);
1460 sy=sy*fontheight(p);
1461 height=height*fontheight(p);
1462 c=((u16 *)p->dispsw_data)[attr_bgcol_ec(p, conp)];
1463 c|=c<<16;
1464 pm2fb_block_op((struct pm2fb_info* )p->fb_info, 0, 0, 0, sx, sy,
1465 width, height, c);
1466 }
1467
1468 static void pm2fb_clear_margins16(struct vc_data* conp, struct display* p,
1469 int bottom_only) {
1470 u32 c;
1471 u32 sx;
1472 u32 sy;
1473
1474 c=((u16 *)p->dispsw_data)[attr_bgcol_ec(p, conp)];
1475 c|=c<<16;
1476 sx=conp->vc_cols*fontwidth(p);
1477 sy=conp->vc_rows*fontheight(p);
1478 if (!bottom_only)
1479 pm2fb_block_op((struct pm2fb_info* )p->fb_info, 0, 0, 0,
1480 sx, 0, (p->var.xres-sx), p->var.yres_virtual, c);
1481 pm2fb_block_op((struct pm2fb_info* )p->fb_info, 0, 0, 0,
1482 0, p->var.yoffset+sy, sx, p->var.yres-sy, c);
1483 }
1484
1485 static struct display_switch pm2_cfb16 = {
1486 .setup = fbcon_cfb16_setup,
1487 .bmove = pm2fb_pp_bmove,
1488 .clear = pm2fb_clear16,
1489 .putc = fbcon_cfb16_putc,
1490 .putcs = fbcon_cfb16_putcs,
1491 .revc = fbcon_cfb16_revc,
1492 .cursor = pm2fb_cursor,
1493 .set_font = pm2fb_set_font,
1494 .clear_margins =pm2fb_clear_margins16,
1495 .fontwidthmask =FONTWIDTH(4)|FONTWIDTH(8)|FONTWIDTH(12)|FONTWIDTH(16)
1496 };
1497 #endif /* FBCON_HAS_CFB16 */
1498
1499 #ifdef FBCON_HAS_CFB24
1500 /*
1501 * fast fill for 24bpp works only when red==green==blue
1502 */
1503 static void pm2fb_clear24(struct vc_data* conp, struct display* p,
1504 int sy, int sx, int height, int width) {
1505 struct pm2fb_info* i=(struct pm2fb_info* )p->fb_info;
1506 u32 c;
1507
1508 c=attr_bgcol_ec(p, conp);
1509 if ( i->palette[c].red==i->palette[c].green &&
1510 i->palette[c].green==i->palette[c].blue) {
1511 c=((u32 *)p->dispsw_data)[c];
1512 c|=(c&0xff0000)<<8;
1513 sx=sx*fontwidth(p);
1514 width=width*fontwidth(p);
1515 sy=sy*fontheight(p);
1516 height=height*fontheight(p);
1517 pm2fb_block_op(i, 0, 0, 0, sx, sy, width, height, c);
1518 }
1519 else
1520 fbcon_cfb24_clear(conp, p, sy, sx, height, width);
1521
1522 }
1523
1524 static void pm2fb_clear_margins24(struct vc_data* conp, struct display* p,
1525 int bottom_only) {
1526 struct pm2fb_info* i=(struct pm2fb_info* )p->fb_info;
1527 u32 sx;
1528 u32 sy;
1529
1530 sx=conp->vc_cols*fontwidth(p);
1531 sy=conp->vc_rows*fontheight(p);
1532 if (!bottom_only)
1533 pm2fb_block_op(i, 0, 0, 0, sx, 0, (p->var.xres-sx),
1534 p->var.yres_virtual, 0L);
1535 pm2fb_block_op(i, 0, 0, 0, 0, p->var.yoffset+sy, sx, p->var.yres-sy, 0L);
1536 }
1537
1538 static struct display_switch pm2_cfb24 = {
1539 .setup = fbcon_cfb24_setup,
1540 .bmove = pm2fb_bmove,
1541 .clear = pm2fb_clear24,
1542 .putc = fbcon_cfb24_putc,
1543 .putcs = fbcon_cfb24_putcs,
1544 .revc = fbcon_cfb24_revc,
1545 .cursor = pm2fb_cursor,
1546 .set_font = pm2fb_set_font,
1547 .clear_margins =pm2fb_clear_margins24,
1548 .fontwidthmask =FONTWIDTH(4)|FONTWIDTH(8)|FONTWIDTH(12)|FONTWIDTH(16)
1549 };
1550 #endif /* FBCON_HAS_CFB24 */
1551
1552 #ifdef FBCON_HAS_CFB32
1553 static void pm2fb_clear32(struct vc_data* conp, struct display* p,
1554 int sy, int sx, int height, int width) {
1555 u32 c;
1556
1557 sx=sx*fontwidth(p);
1558 width=width*fontwidth(p);
1559 sy=sy*fontheight(p);
1560 height=height*fontheight(p);
1561 c=((u32 *)p->dispsw_data)[attr_bgcol_ec(p, conp)];
1562 pm2fb_block_op((struct pm2fb_info* )p->fb_info, 0, 0, 0, sx, sy,
1563 width, height, c);
1564 }
1565
1566 static void pm2fb_clear_margins32(struct vc_data* conp, struct display* p,
1567 int bottom_only) {
1568 u32 c;
1569 u32 sx;
1570 u32 sy;
1571
1572 c=((u32 *)p->dispsw_data)[attr_bgcol_ec(p, conp)];
1573 sx=conp->vc_cols*fontwidth(p);
1574 sy=conp->vc_rows*fontheight(p);
1575 if (!bottom_only)
1576 pm2fb_block_op((struct pm2fb_info* )p->fb_info, 0, 0, 0,
1577 sx, 0, (p->var.xres-sx), p->var.yres_virtual, c);
1578 pm2fb_block_op((struct pm2fb_info* )p->fb_info, 0, 0, 0,
1579 0, p->var.yoffset+sy, sx, p->var.yres-sy, c);
1580 }
1581
1582 static struct display_switch pm2_cfb32 = {
1583 .setup = fbcon_cfb32_setup,
1584 .bmove = pm2fb_bmove,
1585 .clear = pm2fb_clear32,
1586 .putc = fbcon_cfb32_putc,
1587 .putcs = fbcon_cfb32_putcs,
1588 .revc = fbcon_cfb32_revc,
1589 .cursor = pm2fb_cursor,
1590 .set_font = pm2fb_set_font,
1591 .clear_margins =pm2fb_clear_margins32,
1592 .fontwidthmask =FONTWIDTH(4)|FONTWIDTH(8)|FONTWIDTH(12)|FONTWIDTH(16)
1593 };
1594 #endif /* FBCON_HAS_CFB32 */
1595
1596 /***************************************************************************
1597 * Framebuffer functions
1598 ***************************************************************************/
1599
1600 static void pm2fb_detect(void) {}
1601
1602 static int pm2fb_encode_fix(struct fb_fix_screeninfo* fix,
1603 const void* par, struct fb_info_gen* info) {
1604 struct pm2fb_info* i=(struct pm2fb_info* )info;
1605 struct pm2fb_par* p=(struct pm2fb_par* )par;
1606
1607 strcpy(fix->id, permedia2_name);
1608 fix->smem_start=(unsigned long )i->regions.p_fb;
1609 fix->smem_len=i->regions.fb_size;
1610 fix->mmio_start=(unsigned long )i->regions.p_regs;
1611 fix->mmio_len=PM2_REGS_SIZE;
1612 fix->accel=FB_ACCEL_3DLABS_PERMEDIA2;
1613 fix->type=FB_TYPE_PACKED_PIXELS;
1614 fix->visual=p->depth==8?FB_VISUAL_PSEUDOCOLOR:FB_VISUAL_TRUECOLOR;
1615 fix->line_length=p->width*p->depth/8;
1616 fix->xpanstep=p->depth==24?8:64/p->depth;
1617 fix->ypanstep=1;
1618 fix->ywrapstep=0;
1619 return 0;
1620 }
1621
1622 #ifdef PM2FB_MASTER_DEBUG
1623 static void pm2fb_display_var(const struct fb_var_screeninfo* var) {
1624
1625 printk( KERN_DEBUG
1626 "- struct fb_var_screeninfo ---------------------------------------------------\n");
1627 printk( KERN_DEBUG
1628 "resolution: %ux%ux%u (virtual %ux%u+%u+%u)\n",
1629 var->xres, var->yres, var->bits_per_pixel,
1630 var->xres_virtual, var->yres_virtual,
1631 var->xoffset, var->yoffset);
1632 printk( KERN_DEBUG
1633 "color: %c%c "
1634 "R(%u,%u,%u), G(%u,%u,%u), B(%u,%u,%u), T(%u,%u,%u)\n",
1635 var->grayscale?'G':'C', var->nonstd?'N':'S',
1636 var->red.offset, var->red.length, var->red.msb_right,
1637 var->green.offset, var->green.length, var->green.msb_right,
1638 var->blue.offset, var->blue.length, var->blue.msb_right,
1639 var->transp.offset, var->transp.length,
1640 var->transp.msb_right);
1641 printk( KERN_DEBUG
1642 "timings: %ups (%u,%u)-(%u,%u)+%u+%u\n",
1643 var->pixclock,
1644 var->left_margin, var->upper_margin, var->right_margin,
1645 var->lower_margin, var->hsync_len, var->vsync_len);
1646 printk( KERN_DEBUG
1647 "activate %08x accel_flags %08x sync %08x vmode %08x\n",
1648 var->activate, var->accel_flags, var->sync, var->vmode);
1649 printk( KERN_DEBUG
1650 "------------------------------------------------------------------------------\n");
1651 }
1652
1653 #define pm2fb_decode_var pm2fb_wrapped_decode_var
1654 #endif
1655
1656 static int pm2fb_decode_var(const struct fb_var_screeninfo* var,
1657 void* par, struct fb_info_gen* info) {
1658 struct pm2fb_info* i=(struct pm2fb_info* )info;
1659 struct pm2fb_par p;
1660 u32 xres;
1661 int data64;
1662
1663 memset(&p, 0, sizeof(struct pm2fb_par));
1664 if (var->accel_flags & FB_ACCELF_TEXT)
1665 p.flags |= PM2FF_ACCEL;
1666 p.width=(var->xres_virtual+7)&~7;
1667 p.height=var->yres_virtual;
1668 p.depth=(var->bits_per_pixel+7)&~7;
1669 p.depth=p.depth>32?32:p.depth;
1670 data64=p.depth>8 || i->type==PM2_TYPE_PERMEDIA2V;
1671 xres=(var->xres+31)&~31;
1672 if (p.width<xres+var->xoffset)
1673 p.width=xres+var->xoffset;
1674 if (p.height<var->yres+var->yoffset)
1675 p.height=var->yres+var->yoffset;
1676 if (!partprod(xres)) {
1677 DPRINTK("width not supported: %u\n", xres);
1678 return -EINVAL;
1679 }
1680 if (p.width>2047) {
1681 DPRINTK("virtual width not supported: %u\n", p.width);
1682 return -EINVAL;
1683 }
1684 if (var->yres<200) {
1685 DPRINTK("height not supported: %u\n",
1686 (u32 )var->yres);
1687 return -EINVAL;
1688 }
1689 if (p.height<200 || p.height>2047) {
1690 DPRINTK("virtual height not supported: %u\n", p.height);
1691 return -EINVAL;
1692 }
1693 if (p.depth>32) {
1694 DPRINTK("depth not supported: %u\n", p.depth);
1695 return -EINVAL;
1696 }
1697 if (p.width*p.height*p.depth/8>i->regions.fb_size) {
1698 DPRINTK("no memory for screen (%ux%ux%u)\n",
1699 p.width, p.height, p.depth);
1700 return -EINVAL;
1701 }
1702 p.pixclock=PICOS2KHZ(var->pixclock);
1703 if (p.pixclock>PM2_MAX_PIXCLOCK) {
1704 DPRINTK("pixclock too high (%uKHz)\n", p.pixclock);
1705 return -EINVAL;
1706 }
1707 p.hsstart=to3264(var->right_margin, p.depth, data64);
1708 p.hsend=p.hsstart+to3264(var->hsync_len, p.depth, data64);
1709 p.hbend=p.hsend+to3264(var->left_margin, p.depth, data64);
1710 p.htotal=to3264(xres, p.depth, data64)+p.hbend-1;
1711 p.vsstart=var->lower_margin?var->lower_margin-1:0; /* FIXME! */
1712 p.vsend=var->lower_margin+var->vsync_len-1;
1713 p.vbend=var->lower_margin+var->vsync_len+var->upper_margin;
1714 p.vtotal=var->yres+p.vbend-1;
1715 p.stride=to3264(p.width, p.depth, 1);
1716 p.base=to3264(var->yoffset*xres+var->xoffset, p.depth, 1);
1717 if (data64)
1718 p.video|=PM2F_DATA_64_ENABLE;
1719 if (var->sync & FB_SYNC_HOR_HIGH_ACT) {
1720 if (pm2fb_options.flags & OPTF_LOW_HSYNC) {
1721 DPRINTK("ignoring +hsync, using -hsync.\n");
1722 p.video|=PM2F_HSYNC_ACT_LOW;
1723 } else
1724 p.video|=PM2F_HSYNC_ACT_HIGH;
1725 }
1726 else
1727 p.video|=PM2F_HSYNC_ACT_LOW;
1728 if (var->sync & FB_SYNC_VERT_HIGH_ACT) {
1729 if (pm2fb_options.flags & OPTF_LOW_VSYNC) {
1730 DPRINTK("ignoring +vsync, using -vsync.\n");
1731 p.video|=PM2F_VSYNC_ACT_LOW;
1732 } else
1733 p.video|=PM2F_VSYNC_ACT_HIGH;
1734 }
1735 else
1736 p.video|=PM2F_VSYNC_ACT_LOW;
1737 if ((var->vmode & FB_VMODE_MASK)==FB_VMODE_INTERLACED) {
1738 DPRINTK("interlaced not supported\n");
1739 return -EINVAL;
1740 }
1741 if ((var->vmode & FB_VMODE_MASK)==FB_VMODE_DOUBLE)
1742 p.video|=PM2F_LINE_DOUBLE;
1743 if (var->activate==FB_ACTIVATE_NOW)
1744 p.video|=PM2F_VIDEO_ENABLE;
1745 *((struct pm2fb_par* )par)=p;
1746 return 0;
1747 }
1748
1749 #ifdef PM2FB_MASTER_DEBUG
1750 #undef pm2fb_decode_var
1751
1752 static int pm2fb_decode_var(const struct fb_var_screeninfo* var,
1753 void* par, struct fb_info_gen* info) {
1754 int result;
1755
1756 result=pm2fb_wrapped_decode_var(var, par, info);
1757 pm2fb_display_var(var);
1758 return result;
1759 }
1760 #endif
1761
1762 static void pm2fb_par2var(struct fb_var_screeninfo* v,
1763 const struct pm2fb_par* p) {
1764 u32 base;
1765
1766 memset(v, 0, sizeof(struct fb_var_screeninfo));
1767 if (p->flags & PM2FF_ACCEL)
1768 v->accel_flags |= FB_ACCELF_TEXT;
1769 v->xres_virtual=p->width;
1770 v->yres_virtual=p->height;
1771 v->xres=(p->htotal+1)-p->hbend;
1772 v->yres=(p->vtotal+1)-p->vbend;
1773 v->right_margin=p->hsstart;
1774 v->hsync_len=p->hsend-p->hsstart;
1775 v->left_margin=p->hbend-p->hsend;
1776 v->lower_margin=p->vsstart+1;
1777 v->vsync_len=p->vsend-v->lower_margin+1;
1778 v->upper_margin=p->vbend-v->lower_margin-v->vsync_len;
1779 v->bits_per_pixel=p->depth;
1780 if (p->video & PM2F_DATA_64_ENABLE) {
1781 v->xres=v->xres<<1;
1782 v->right_margin=v->right_margin<<1;
1783 v->hsync_len=v->hsync_len<<1;
1784 v->left_margin=v->left_margin<<1;
1785 }
1786 switch (p->depth) {
1787 case 8:
1788 v->red.length=v->green.length=v->blue.length=8;
1789 v->xres=v->xres<<2;
1790 v->right_margin=v->right_margin<<2;
1791 v->hsync_len=v->hsync_len<<2;
1792 v->left_margin=v->left_margin<<2;
1793 break;
1794 case 16:
1795 v->red.offset=11;
1796 v->red.length=5;
1797 v->green.offset=5;
1798 v->green.length=6;
1799 v->blue.length=5;
1800 v->xres=v->xres<<1;
1801 v->right_margin=v->right_margin<<1;
1802 v->hsync_len=v->hsync_len<<1;
1803 v->left_margin=v->left_margin<<1;
1804 break;
1805 case 32:
1806 v->transp.offset=24;
1807 v->red.offset=16;
1808 v->green.offset=8;
1809 v->red.length=v->green.length=v->blue.length=
1810 v->transp.length=8;
1811 break;
1812 case 24:
1813 v->blue.offset=16;
1814 v->green.offset=8;
1815 v->red.length=v->green.length=v->blue.length=8;
1816 v->xres=(v->xres<<2)/3;
1817 v->right_margin=(v->right_margin<<2)/3;
1818 v->hsync_len=(v->hsync_len<<2)/3;
1819 v->left_margin=(v->left_margin<<2)/3;
1820 break;
1821 }
1822 base=from3264(p->base, p->depth, 1);
1823 v->xoffset=base%v->xres;
1824 v->yoffset=base/v->xres;
1825 v->height=v->width=-1;
1826 v->pixclock=KHZ2PICOS(p->pixclock);
1827 if ((p->video & PM2F_HSYNC_MASK)==PM2F_HSYNC_ACT_HIGH)
1828 v->sync|=FB_SYNC_HOR_HIGH_ACT;
1829 if ((p->video & PM2F_VSYNC_MASK)==PM2F_VSYNC_ACT_HIGH)
1830 v->sync|=FB_SYNC_VERT_HIGH_ACT;
1831 if (p->video & PM2F_LINE_DOUBLE)
1832 v->vmode=FB_VMODE_DOUBLE;
1833 }
1834
1835
1836 static int pm2fb_encode_var(struct fb_var_screeninfo* var,
1837 const void* par, struct fb_info_gen* info) {
1838
1839 pm2fb_par2var(var, (struct pm2fb_par* )par);
1840 return 0;
1841 }
1842
1843 static void set_user_mode(struct pm2fb_info* i) {
1844
1845 memcpy(&i->current_par, &pm2fb_options.user_mode,
1846 sizeof(i->current_par));
1847 if (pm2fb_options.flags & OPTF_YPAN) {
1848 i->current_par.height=i->regions.fb_size/
1849 (i->current_par.width*i->current_par.depth/8);
1850 i->current_par.height=MIN(i->current_par.height,2047);
1851 i->current_par.height=MAX(i->current_par.height,
1852 pm2fb_options.user_mode.height);
1853 }
1854 }
1855
1856 static void pm2fb_get_par(void* par, struct fb_info_gen* info) {
1857 struct pm2fb_info* i=(struct pm2fb_info* )info;
1858
1859 if (!i->current_par_valid) {
1860 set_user_mode(i);
1861 pm2fb_set_par(&i->current_par, info);
1862 }
1863 get_screen(i, (struct pm2fb_par* )par);
1864 }
1865
1866 static void pm2fb_set_par(const void* par, struct fb_info_gen* info) {
1867 struct pm2fb_info* i=(struct pm2fb_info* )info;
1868 struct pm2fb_par* p=(struct pm2fb_par* )par;
1869
1870 if (screen_is_valid(i)) {
1871 i->current_par.base=p->base;
1872 if (!memcmp(p, &i->current_par, sizeof(struct pm2fb_par))) {
1873 WAIT_FIFO(i, 1);
1874 pm2_WR(i, PM2R_SCREEN_BASE, p->base);
1875 return;
1876 }
1877 }
1878
1879 wait_pm2(i);
1880 reset_units(i);
1881 set_screen(i, p);
1882 i->current_par=*p;
1883 i->current_par_valid=1;
1884 #ifdef PM2FB_HW_CURSOR
1885 if (i->cursor) {
1886 pm2v_set_cursor_color(i, cursor_color_map,
1887 cursor_color_map, cursor_color_map);
1888 pm2v_set_cursor_shape(i);
1889 }
1890 #endif
1891 }
1892
1893 static int pm2fb_getcolreg(unsigned regno,
1894 unsigned* red, unsigned* green, unsigned* blue,
1895 unsigned* transp, struct fb_info* info) {
1896 struct pm2fb_info* i=(struct pm2fb_info* )info;
1897
1898 if (regno<256) {
1899 *red=i->palette[regno].red<<8|i->palette[regno].red;
1900 *green=i->palette[regno].green<<8|i->palette[regno].green;
1901 *blue=i->palette[regno].blue<<8|i->palette[regno].blue;
1902 *transp=i->palette[regno].transp<<8|i->palette[regno].transp;
1903 }
1904 return regno>255;
1905 }
1906
1907 static int pm2fb_setcolreg(unsigned regno,
1908 unsigned red, unsigned green, unsigned blue,
1909 unsigned transp, struct fb_info* info) {
1910 struct pm2fb_info* i=(struct pm2fb_info* )info;
1911
1912 if (regno<16) {
1913 switch (i->current_par.depth) {
1914 #ifdef FBCON_HAS_CFB8
1915 case 8:
1916 break;
1917 #endif
1918 #ifdef FBCON_HAS_CFB16
1919 case 16:
1920 i->cmap.cmap16[regno]=
1921 ((u32 )red & 0xf800) |
1922 (((u32 )green & 0xfc00)>>5) |
1923 (((u32 )blue & 0xf800)>>11);
1924 break;
1925 #endif
1926 #ifdef FBCON_HAS_CFB24
1927 case 24:
1928 i->cmap.cmap24[regno]=
1929 (((u32 )blue & 0xff00) << 8) |
1930 ((u32 )green & 0xff00) |
1931 (((u32 )red & 0xff00) >> 8);
1932 break;
1933 #endif
1934 #ifdef FBCON_HAS_CFB32
1935 case 32:
1936 i->cmap.cmap32[regno]=
1937 (((u32 )transp & 0xff00) << 16) |
1938 (((u32 )red & 0xff00) << 8) |
1939 (((u32 )green & 0xff00)) |
1940 (((u32 )blue & 0xff00) >> 8);
1941 break;
1942 #endif
1943 default:
1944 DPRINTK("bad depth %u\n",
1945 i->current_par.depth);
1946 break;
1947 }
1948 }
1949 if (regno<256) {
1950 i->palette[regno].red=red >> 8;
1951 i->palette[regno].green=green >> 8;
1952 i->palette[regno].blue=blue >> 8;
1953 i->palette[regno].transp=transp >> 8;
1954 if (i->current_par.depth==8)
1955 set_color(i, regno, red>>8, green>>8, blue>>8);
1956 }
1957 return regno>255;
1958 }
1959
1960 static void pm2fb_set_disp(const void* par, struct display* disp,
1961 struct fb_info_gen* info) {
1962 struct pm2fb_info* i=(struct pm2fb_info* )info;
1963 struct pm2fb_par* p=(struct pm2fb_par* )par;
1964 unsigned long flags;
1965
1966 local_irq_save(flags);
1967 #ifdef __alpha__
1968 disp->screen_base=i->regions.v_fb + dense_mem(i->regions.v_fb);
1969 #else
1970 disp->screen_base=i->regions.v_fb;
1971 #endif
1972 switch (p->depth) {
1973 #ifdef FBCON_HAS_CFB8
1974 case 8:
1975 if (p->flags & PM2FF_ACCEL)
1976 disp->dispsw=&pm2_cfb8;
1977 else
1978 disp->dispsw=&fbcon_cfb8;
1979 break;
1980 #endif
1981 #ifdef FBCON_HAS_CFB16
1982 case 16:
1983 if (p->flags & PM2FF_ACCEL)
1984 disp->dispsw=&pm2_cfb16;
1985 else
1986 disp->dispsw=&fbcon_cfb16;
1987 disp->dispsw_data=i->cmap.cmap16;
1988 break;
1989 #endif
1990 #ifdef FBCON_HAS_CFB24
1991 case 24:
1992 if (p->flags & PM2FF_ACCEL)
1993 disp->dispsw=&pm2_cfb24;
1994 else
1995 disp->dispsw=&fbcon_cfb24;
1996 disp->dispsw_data=i->cmap.cmap24;
1997 break;
1998 #endif
1999 #ifdef FBCON_HAS_CFB32
2000 case 32:
2001 if (p->flags & PM2FF_ACCEL)
2002 disp->dispsw=&pm2_cfb32;
2003 else
2004 disp->dispsw=&fbcon_cfb32;
2005 disp->dispsw_data=i->cmap.cmap32;
2006 break;
2007 #endif
2008 default:
2009 disp->dispsw=&fbcon_dummy;
2010 break;
2011 }
2012 local_irq_restore(flags);
2013 }
2014
2015 #ifdef PM2FB_HW_CURSOR
2016 /***************************************************************************
2017 * Hardware cursor support
2018 ***************************************************************************/
2019
2020 static u8 cursor_bits_lookup[16] = {
2021 0x00, 0x40, 0x10, 0x50, 0x04, 0x44, 0x14, 0x54,
2022 0x01, 0x41, 0x11, 0x51, 0x05, 0x45, 0x15, 0x55
2023 };
2024
2025 static u8 cursor_mask_lookup[16] = {
2026 0x00, 0x80, 0x20, 0xa0, 0x08, 0x88, 0x28, 0xa8,
2027 0x02, 0x82, 0x22, 0xa2, 0x0a, 0x8a, 0x2a, 0xaa
2028 };
2029
2030 static void pm2v_set_cursor_color(struct pm2fb_info *fb, u8 *red, u8 *green, u8 *blue)
2031 {
2032 struct pm2_cursor *c = fb->cursor;
2033 int i;
2034
2035 for (i = 0; i < 2; i++) {
2036 c->color[3*i] = red[i];
2037 c->color[3*i+1] = green[i];
2038 c->color[3*i+2] = blue[i];
2039 }
2040
2041 WAIT_FIFO(fb, 14);
2042 pm2_WR(fb, PM2VR_RD_INDEX_HIGH, PM2VI_RD_CURSOR_PALETTE >> 8);
2043 for (i = 0; i < 6; i++)
2044 pm2v_RDAC_WR(fb, PM2VI_RD_CURSOR_PALETTE+i, c->color[i]);
2045 pm2_WR(fb, PM2VR_RD_INDEX_HIGH, 0);
2046 }
2047
2048 static void pm2v_set_cursor_shape(struct pm2fb_info *fb)
2049 {
2050 struct pm2_cursor *c = fb->cursor;
2051 u8 m, b;
2052 int i, x, y;
2053
2054 WAIT_FIFO(fb, 1);
2055 pm2_WR(fb, PM2VR_RD_INDEX_HIGH, PM2VI_RD_CURSOR_PATTERN >> 8);
2056 for (y = 0, i = 0; y < c->size.y; y++) {
2057 WAIT_FIFO(fb, 32);
2058 for (x = 0; x < c->size.x >> 3; x++) {
2059 m = c->mask[x][y];
2060 b = c->bits[x][y];
2061 pm2v_RDAC_WR(fb, PM2VI_RD_CURSOR_PATTERN + i,
2062 cursor_mask_lookup[m >> 4] |
2063 cursor_bits_lookup[(b & m) >> 4]);
2064 pm2v_RDAC_WR(fb, PM2VI_RD_CURSOR_PATTERN + i + 1,
2065 cursor_mask_lookup[m & 0x0f] |
2066 cursor_bits_lookup[(b & m) & 0x0f]);
2067 i+=2;
2068 }
2069 for ( ; x < 8; x++) {
2070 pm2v_RDAC_WR(fb, PM2VI_RD_CURSOR_PATTERN + i, 0);
2071 pm2v_RDAC_WR(fb, PM2VI_RD_CURSOR_PATTERN + i + 1, 0);
2072 i+=2;
2073 }
2074 }
2075 for (; y < 64; y++) {
2076 WAIT_FIFO(fb, 32);
2077 for (x = 0; x < 8; x++) {
2078 pm2v_RDAC_WR(fb, PM2VI_RD_CURSOR_PATTERN + i, 0);
2079 pm2v_RDAC_WR(fb, PM2VI_RD_CURSOR_PATTERN + i + 1, 0);
2080 i+=2;
2081 }
2082 }
2083 WAIT_FIFO(fb, 1);
2084 pm2_WR(fb, PM2VR_RD_INDEX_HIGH, 0);
2085 }
2086
2087 static void pm2v_set_cursor(struct pm2fb_info *fb, int on)
2088 {
2089 struct pm2_cursor *c = fb->cursor;
2090 int x = c->pos.x;
2091
2092 if (!on) x = 4000;
2093 WAIT_FIFO(fb, 14);
2094 pm2v_RDAC_WR(fb, PM2VI_RD_CURSOR_X_LOW, x & 0xff);
2095 pm2v_RDAC_WR(fb, PM2VI_RD_CURSOR_X_HIGH, (x >> 8) & 0x0f);
2096 pm2v_RDAC_WR(fb, PM2VI_RD_CURSOR_Y_LOW, c->pos.y & 0xff);
2097 pm2v_RDAC_WR(fb, PM2VI_RD_CURSOR_Y_HIGH, (c->pos.y >> 8) & 0x0f);
2098 pm2v_RDAC_WR(fb, PM2VI_RD_CURSOR_X_HOT, c->hot.x & 0x3f);
2099 pm2v_RDAC_WR(fb, PM2VI_RD_CURSOR_Y_HOT, c->hot.y & 0x3f);
2100 pm2v_RDAC_WR(fb, PM2VI_RD_CURSOR_MODE, 0x11);
2101 }
2102
2103 static void pm2_cursor_timer_handler(unsigned long dev_addr)
2104 {
2105 struct pm2fb_info *fb = (struct pm2fb_info *)dev_addr;
2106
2107 if (!fb->cursor->enable)
2108 goto out;
2109
2110 if (fb->cursor->vbl_cnt && --fb->cursor->vbl_cnt == 0) {
2111 fb->cursor->on ^= 1;
2112 pm2v_set_cursor(fb, fb->cursor->on);
2113 fb->cursor->vbl_cnt = fb->cursor->blink_rate;
2114 }
2115
2116 out:
2117 fb->cursor->timer->expires = jiffies + (HZ / 50);
2118 add_timer(fb->cursor->timer);
2119 }
2120
2121 static void pm2fb_cursor(struct display *p, int mode, int x, int y)
2122 {
2123 struct pm2fb_info *fb = (struct pm2fb_info *)p->fb_info;
2124 struct pm2_cursor *c = fb->cursor;
2125
2126 if (!c) return;
2127
2128 x *= fontwidth(p);
2129 y *= fontheight(p);
2130 if (c->pos.x == x && c->pos.y == y && (mode == CM_ERASE) == !c->enable)
2131 return;
2132
2133 c->enable = 0;
2134 if (c->on)
2135 pm2v_set_cursor(fb, 0);
2136 c->pos.x = x;
2137 c->pos.y = y;
2138
2139 switch (mode) {
2140 case CM_ERASE:
2141 c->on = 0;
2142 break;
2143
2144 case CM_DRAW:
2145 case CM_MOVE:
2146 if (c->on)
2147 pm2v_set_cursor(fb, 1);
2148 else
2149 c->vbl_cnt = CURSOR_DRAW_DELAY;
2150 c->enable = 1;
2151 break;
2152 }
2153 }
2154
2155 static struct pm2_cursor * __init pm2_init_cursor(struct pm2fb_info *fb)
2156 {
2157 struct pm2_cursor *cursor;
2158
2159 if (fb->type != PM2_TYPE_PERMEDIA2V)
2160 return 0; /* FIXME: Support hw cursor everywhere */
2161
2162 cursor = kmalloc(sizeof(struct pm2_cursor), GFP_ATOMIC);
2163 if (!cursor)
2164 return 0;
2165 memset(cursor, 0, sizeof(*cursor));
2166
2167 cursor->timer = kmalloc(sizeof(*cursor->timer), GFP_KERNEL);
2168 if (!cursor->timer) {
2169 kfree(cursor);
2170 return 0;
2171 }
2172 memset(cursor->timer, 0, sizeof(*cursor->timer));
2173
2174 cursor->blink_rate = DEFAULT_CURSOR_BLINK_RATE;
2175
2176 if (curblink) {
2177 init_timer(cursor->timer);
2178 cursor->timer->expires = jiffies + (HZ / 50);
2179 cursor->timer->data = (unsigned long)fb;
2180 cursor->timer->function = pm2_cursor_timer_handler;
2181 add_timer(cursor->timer);
2182 }
2183
2184 return cursor;
2185 }
2186
2187 static int pm2fb_set_font(struct display *d, int width, int height)
2188 {
2189 struct pm2fb_info *fb = (struct pm2fb_info *)d->fb_info;
2190 struct pm2_cursor *c = fb->cursor;
2191 int i, j;
2192
2193 if (c) {
2194 if (!width || !height) {
2195 width = 8;
2196 height = 16;
2197 }
2198
2199 c->hot.x = 0;
2200 c->hot.y = 0;
2201 c->size.x = width;
2202 c->size.y = height;
2203
2204 memset(c->bits, 0xff, sizeof(c->bits));
2205 memset(c->mask, 0, sizeof(c->mask));
2206
2207 for (i = 0, j = width; j >= 0; j -= 8, i++) {
2208 c->mask[i][height-2] = (j >= 8) ? 0xff : (0xff << (8 - j));
2209 c->mask[i][height-1] = (j >= 8) ? 0xff : (0xff << (8 - j));
2210 }
2211
2212 pm2v_set_cursor_color(fb, cursor_color_map, cursor_color_map, cursor_color_map);
2213 pm2v_set_cursor_shape(fb);
2214 }
2215 return 1;
2216 }
2217 #endif /* PM2FB_HW_CURSOR */
2218
2219 /***************************************************************************
2220 * Begin of public functions
2221 ***************************************************************************/
2222
2223 #ifdef MODULE
2224 static void pm2fb_cleanup(void) {
2225 struct pm2fb_info* i=&fb_info;
2226
2227 unregister_framebuffer((struct fb_info* )info);
2228 pm2fb_reset(i);
2229
2230 UNMAP(i->regions.v_fb, i->regions.fb_size);
2231 release_mem_region(i->regions.p_fb, i->regions.fb_size);
2232
2233 UNMAP(i->regions.v_regs, PM2_REGS_SIZE);
2234 release_mem_region(i->regions.p_regs, PM2_REGS_SIZE);
2235
2236 if (board_table[i->board].cleanup)
2237 board_table[i->board].cleanup(i);
2238 }
2239 #endif /* MODULE */
2240
2241 int __init pm2fb_init(void) {
2242
2243 MOD_INC_USE_COUNT;
2244 memset(&fb_info, 0, sizeof(fb_info));
2245
2246 if (!pm2fb_conf(&fb_info)) {
2247 MOD_DEC_USE_COUNT;
2248 return -ENXIO;
2249 }
2250
2251 /* Pick up user_var settings if set. */
2252 if ((pm2fb_options.flags & OPTF_USER_VAR) &&
2253 pm2fb_decode_var(&user_var, &pm2fb_options.user_mode,
2254 &fb_info.gen)<0) {
2255 printk("pm2fb: user supplied var: mode is bad.\n");
2256 memcpy(&pm2fb_options.user_mode,
2257 &user_mode[DEFAULT_USER_MODE].par,
2258 sizeof(struct pm2fb_par));
2259 }
2260 memcpy(&fb_info.current_par, &pm2fb_options.user_mode,
2261 sizeof(fb_info.current_par));
2262
2263 pm2fb_reset(&fb_info);
2264 fb_info.disp.scrollmode=SCROLL_YNOMOVE;
2265 fb_info.gen.parsize=sizeof(struct pm2fb_par);
2266 fb_info.gen.fbhw=&pm2fb_hwswitch;
2267 strcpy(fb_info.gen.info.modename, permedia2_name);
2268 fb_info.gen.info.flags=FBINFO_FLAG_DEFAULT;
2269 fb_info.gen.info.fbops=&pm2fb_ops;
2270 fb_info.gen.info.disp=&fb_info.disp;
2271 strcpy(fb_info.gen.info.fontname, pm2fb_options.font);
2272 fb_info.gen.info.switch_con=&fbgen_switch;
2273 fb_info.gen.info.updatevar=&fbgen_update_var;
2274
2275 fbgen_get_var(&fb_info.disp.var, -1, &fb_info.gen.info);
2276 fbgen_do_set_var(&fb_info.disp.var, 1, &fb_info.gen);
2277 fbgen_set_disp(-1, &fb_info.gen);
2278 fbgen_install_cmap(0, &fb_info.gen);
2279
2280 if (register_framebuffer(&fb_info.gen.info)<0) {
2281 printk(KERN_ERR "pm2fb: unable to register.\n");
2282 MOD_DEC_USE_COUNT;
2283 return -EINVAL;
2284 }
2285 printk(KERN_INFO "fb%d: %s (%s), using %uK of video memory.\n",
2286 fb_info.gen.info.node,
2287 board_table[fb_info.board].name,
2288 permedia2_name,
2289 (u32 )(fb_info.regions.fb_size>>10));
2290 return 0;
2291 }
2292
2293 static void __init pm2fb_mode_setup(char* options) {
2294 int i;
2295
2296 for (i=0; user_mode[i].name[0] &&
2297 strcmp(options, user_mode[i].name); i++);
2298 if (user_mode[i].name[0]) {
2299 memcpy(&pm2fb_options.user_mode, &user_mode[i].par,
2300 sizeof(pm2fb_options.user_mode));
2301 pm2fb_options.flags|=OPTF_USER;
2302 }
2303 }
2304
2305 static void __init pm2fb_font_setup(char* options) {
2306 strlcpy(pm2fb_options.font, options, sizeof(pm2fb_options.font));
2307 }
2308
2309 static void __init pm2fb_var_setup(char* options) {
2310 char* next;
2311
2312 pm2fb_par2var(&user_var, &pm2fb_options.user_mode);
2313
2314 while (options) {
2315 if ((next=strchr(options, ';')))
2316 *(next++)='\0';
2317 if (!strncmp(options, "bpp:", 4))
2318 user_var.bits_per_pixel=
2319 simple_strtoul(options+4, NULL, 0);
2320 else if (!strncmp(options, "xres:", 5))
2321 user_var.xres=simple_strtoul(options+5, NULL, 0);
2322 else if (!strncmp(options, "yres:", 5))
2323 user_var.yres=simple_strtoul(options+5, NULL, 0);
2324 else if (!strncmp(options, "vxres:", 6))
2325 user_var.xres_virtual=
2326 simple_strtoul(options+6, NULL, 0);
2327 else if (!strncmp(options, "vyres:", 6))
2328 user_var.yres_virtual=
2329 simple_strtoul(options+6, NULL, 0);
2330 else if (!strncmp(options, "left:", 5))
2331 user_var.left_margin=
2332 simple_strtoul(options+5, NULL, 0);
2333 else if (!strncmp(options, "right:", 6))
2334 user_var.right_margin=
2335 simple_strtoul(options+6, NULL, 0);
2336 else if (!strncmp(options, "lower:", 6))
2337 user_var.lower_margin=
2338 simple_strtoul(options+6, NULL, 0);
2339 else if (!strncmp(options, "upper:", 6))
2340 user_var.upper_margin=
2341 simple_strtoul(options+6, NULL, 0);
2342 else if (!strncmp(options, "hslen:", 6))
2343 user_var.hsync_len=simple_strtoul(options+6, NULL, 0);
2344 else if (!strncmp(options, "vslen:", 6))
2345 user_var.vsync_len=simple_strtoul(options+6, NULL, 0);
2346 else if (!strncmp(options, "pixclock:", 9))
2347 user_var.pixclock=simple_strtoul(options+9, NULL, 0);
2348 else if (!strcmp(options, "+hsync"))
2349 user_var.sync|=FB_SYNC_HOR_HIGH_ACT;
2350 else if (!strcmp(options, "-hsync"))
2351 user_var.sync&=~FB_SYNC_HOR_HIGH_ACT;
2352 else if (!strcmp(options, "+vsync"))
2353 user_var.sync|=FB_SYNC_VERT_HIGH_ACT;
2354 else if (!strcmp(options, "-vsync"))
2355 user_var.sync&=~FB_SYNC_VERT_HIGH_ACT;
2356 else if (!strcmp(options, "+double"))
2357 user_var.vmode|=FB_VMODE_DOUBLE;
2358 else if (!strcmp(options, "-double"))
2359 user_var.vmode&=~FB_VMODE_DOUBLE;
2360 else if (!strcmp(options, "+accel"))
2361 user_var.accel_flags|=FB_ACCELF_TEXT;
2362 else if (!strcmp(options, "-accel"))
2363 user_var.accel_flags&=~FB_ACCELF_TEXT;
2364 options=next;
2365 }
2366 pm2fb_options.flags|=OPTF_USER_VAR;
2367 }
2368
2369 int __init pm2fb_setup(char* options) {
2370 char* next;
2371
2372 while (options) {
2373 if ((next=strchr(options, ',')))
2374 *(next++)='\0';
2375 if (!strncmp(options, "font:", 5))
2376 pm2fb_font_setup(options+5);
2377 else if (!strncmp(options, "mode:", 5))
2378 pm2fb_mode_setup(options+5);
2379 else if (!strncmp(options, "var:", 4))
2380 pm2fb_var_setup(options+4);
2381 else if (!strcmp(options, "ypan"))
2382 pm2fb_options.flags |= OPTF_YPAN;
2383 else if (!strcmp(options, "oldmem"))
2384 pm2fb_options.flags |= OPTF_OLD_MEM;
2385 else if (!strcmp(options, "virtual"))
2386 pm2fb_options.flags |= OPTF_VIRTUAL;
2387 else if (!strcmp(options, "lowhsync"))
2388 pm2fb_options.flags |= OPTF_LOW_HSYNC;
2389 else if (!strcmp(options, "lowvsync"))
2390 pm2fb_options.flags |= OPTF_LOW_VSYNC;
2391 else if (!strcmp(options, "noblink"))
2392 curblink=0;
2393 options=next;
2394 }
2395 user_var.activate=FB_ACTIVATE_NOW;
2396 return 0;
2397 }
2398
2399 /***************************************************************************
2400 * Begin of module functions
2401 ***************************************************************************/
2402
2403 #ifdef MODULE
2404
2405 MODULE_LICENSE("GPL");
2406
2407 static char *mode = NULL;
2408
2409 MODULE_PARM(mode, "s");
2410
2411 int init_module(void) {
2412
2413 if (mode)
2414 pm2fb_mode_setup(mode);
2415 return pm2fb_init();
2416 }
2417
2418 void cleanup_module(void) {
2419
2420 pm2fb_cleanup();
2421 }
2422 #endif /* MODULE */
2423
2424 /***************************************************************************
2425 * That's all folks!
2426 ***************************************************************************/
Historical 2.5/2.6 development