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Merge branch 'for-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave...
[mirror_ubuntu-focal-kernel.git] / drivers / video / fbdev / pm2fb.c
1 /*
2 * Permedia2 framebuffer driver.
3 *
4 * 2.5/2.6 driver:
5 * Copyright (c) 2003 Jim Hague (jim.hague@acm.org)
6 *
7 * based on 2.4 driver:
8 * Copyright (c) 1998-2000 Ilario Nardinocchi (nardinoc@CS.UniBO.IT)
9 * Copyright (c) 1999 Jakub Jelinek (jakub@redhat.com)
10 *
11 * and additional input from James Simmon's port of Hannu Mallat's tdfx
12 * driver.
13 *
14 * I have a Creative Graphics Blaster Exxtreme card - pm2fb on x86. I
15 * have no access to other pm2fb implementations. Sparc (and thus
16 * hopefully other big-endian) devices now work, thanks to a lot of
17 * testing work by Ron Murray. I have no access to CVision hardware,
18 * and therefore for now I am omitting the CVision code.
19 *
20 * Multiple boards support has been on the TODO list for ages.
21 * Don't expect this to change.
22 *
23 * This file is subject to the terms and conditions of the GNU General Public
24 * License. See the file COPYING in the main directory of this archive for
25 * more details.
26 *
27 *
28 */
29
30 #include <linux/module.h>
31 #include <linux/moduleparam.h>
32 #include <linux/kernel.h>
33 #include <linux/errno.h>
34 #include <linux/string.h>
35 #include <linux/mm.h>
36 #include <linux/slab.h>
37 #include <linux/delay.h>
38 #include <linux/fb.h>
39 #include <linux/init.h>
40 #include <linux/pci.h>
41 #include <video/permedia2.h>
42 #include <video/cvisionppc.h>
43
44 #if !defined(__LITTLE_ENDIAN) && !defined(__BIG_ENDIAN)
45 #error "The endianness of the target host has not been defined."
46 #endif
47
48 #if !defined(CONFIG_PCI)
49 #error "Only generic PCI cards supported."
50 #endif
51
52 #undef PM2FB_MASTER_DEBUG
53 #ifdef PM2FB_MASTER_DEBUG
54 #define DPRINTK(a, b...) \
55 printk(KERN_DEBUG "pm2fb: %s: " a, __func__ , ## b)
56 #else
57 #define DPRINTK(a, b...)
58 #endif
59
60 #define PM2_PIXMAP_SIZE (1600 * 4)
61
62 /*
63 * Driver data
64 */
65 static int hwcursor = 1;
66 static char *mode_option;
67
68 /*
69 * The XFree GLINT driver will (I think to implement hardware cursor
70 * support on TVP4010 and similar where there is no RAMDAC - see
71 * comment in set_video) always request +ve sync regardless of what
72 * the mode requires. This screws me because I have a Sun
73 * fixed-frequency monitor which absolutely has to have -ve sync. So
74 * these flags allow the user to specify that requests for +ve sync
75 * should be silently turned in -ve sync.
76 */
77 static bool lowhsync;
78 static bool lowvsync;
79 static bool noaccel;
80 static bool nomtrr;
81
82 /*
83 * The hardware state of the graphics card that isn't part of the
84 * screeninfo.
85 */
86 struct pm2fb_par
87 {
88 pm2type_t type; /* Board type */
89 unsigned char __iomem *v_regs;/* virtual address of p_regs */
90 u32 memclock; /* memclock */
91 u32 video; /* video flags before blanking */
92 u32 mem_config; /* MemConfig reg at probe */
93 u32 mem_control; /* MemControl reg at probe */
94 u32 boot_address; /* BootAddress reg at probe */
95 u32 palette[16];
96 int wc_cookie;
97 };
98
99 /*
100 * Here we define the default structs fb_fix_screeninfo and fb_var_screeninfo
101 * if we don't use modedb.
102 */
103 static struct fb_fix_screeninfo pm2fb_fix = {
104 .id = "",
105 .type = FB_TYPE_PACKED_PIXELS,
106 .visual = FB_VISUAL_PSEUDOCOLOR,
107 .xpanstep = 1,
108 .ypanstep = 1,
109 .ywrapstep = 0,
110 .accel = FB_ACCEL_3DLABS_PERMEDIA2,
111 };
112
113 /*
114 * Default video mode. In case the modedb doesn't work.
115 */
116 static const struct fb_var_screeninfo pm2fb_var = {
117 /* "640x480, 8 bpp @ 60 Hz */
118 .xres = 640,
119 .yres = 480,
120 .xres_virtual = 640,
121 .yres_virtual = 480,
122 .bits_per_pixel = 8,
123 .red = {0, 8, 0},
124 .blue = {0, 8, 0},
125 .green = {0, 8, 0},
126 .activate = FB_ACTIVATE_NOW,
127 .height = -1,
128 .width = -1,
129 .accel_flags = 0,
130 .pixclock = 39721,
131 .left_margin = 40,
132 .right_margin = 24,
133 .upper_margin = 32,
134 .lower_margin = 11,
135 .hsync_len = 96,
136 .vsync_len = 2,
137 .vmode = FB_VMODE_NONINTERLACED
138 };
139
140 /*
141 * Utility functions
142 */
143
144 static inline u32 pm2_RD(struct pm2fb_par *p, s32 off)
145 {
146 return fb_readl(p->v_regs + off);
147 }
148
149 static inline void pm2_WR(struct pm2fb_par *p, s32 off, u32 v)
150 {
151 fb_writel(v, p->v_regs + off);
152 }
153
154 static inline u32 pm2_RDAC_RD(struct pm2fb_par *p, s32 idx)
155 {
156 pm2_WR(p, PM2R_RD_PALETTE_WRITE_ADDRESS, idx);
157 mb();
158 return pm2_RD(p, PM2R_RD_INDEXED_DATA);
159 }
160
161 static inline u32 pm2v_RDAC_RD(struct pm2fb_par *p, s32 idx)
162 {
163 pm2_WR(p, PM2VR_RD_INDEX_LOW, idx & 0xff);
164 mb();
165 return pm2_RD(p, PM2VR_RD_INDEXED_DATA);
166 }
167
168 static inline void pm2_RDAC_WR(struct pm2fb_par *p, s32 idx, u32 v)
169 {
170 pm2_WR(p, PM2R_RD_PALETTE_WRITE_ADDRESS, idx);
171 wmb();
172 pm2_WR(p, PM2R_RD_INDEXED_DATA, v);
173 wmb();
174 }
175
176 static inline void pm2v_RDAC_WR(struct pm2fb_par *p, s32 idx, u32 v)
177 {
178 pm2_WR(p, PM2VR_RD_INDEX_LOW, idx & 0xff);
179 wmb();
180 pm2_WR(p, PM2VR_RD_INDEXED_DATA, v);
181 wmb();
182 }
183
184 #ifdef CONFIG_FB_PM2_FIFO_DISCONNECT
185 #define WAIT_FIFO(p, a)
186 #else
187 static inline void WAIT_FIFO(struct pm2fb_par *p, u32 a)
188 {
189 while (pm2_RD(p, PM2R_IN_FIFO_SPACE) < a)
190 cpu_relax();
191 }
192 #endif
193
194 /*
195 * partial products for the supported horizontal resolutions.
196 */
197 #define PACKPP(p0, p1, p2) (((p2) << 6) | ((p1) << 3) | (p0))
198 static const struct {
199 u16 width;
200 u16 pp;
201 } pp_table[] = {
202 { 32, PACKPP(1, 0, 0) }, { 64, PACKPP(1, 1, 0) },
203 { 96, PACKPP(1, 1, 1) }, { 128, PACKPP(2, 1, 1) },
204 { 160, PACKPP(2, 2, 1) }, { 192, PACKPP(2, 2, 2) },
205 { 224, PACKPP(3, 2, 1) }, { 256, PACKPP(3, 2, 2) },
206 { 288, PACKPP(3, 3, 1) }, { 320, PACKPP(3, 3, 2) },
207 { 384, PACKPP(3, 3, 3) }, { 416, PACKPP(4, 3, 1) },
208 { 448, PACKPP(4, 3, 2) }, { 512, PACKPP(4, 3, 3) },
209 { 544, PACKPP(4, 4, 1) }, { 576, PACKPP(4, 4, 2) },
210 { 640, PACKPP(4, 4, 3) }, { 768, PACKPP(4, 4, 4) },
211 { 800, PACKPP(5, 4, 1) }, { 832, PACKPP(5, 4, 2) },
212 { 896, PACKPP(5, 4, 3) }, { 1024, PACKPP(5, 4, 4) },
213 { 1056, PACKPP(5, 5, 1) }, { 1088, PACKPP(5, 5, 2) },
214 { 1152, PACKPP(5, 5, 3) }, { 1280, PACKPP(5, 5, 4) },
215 { 1536, PACKPP(5, 5, 5) }, { 1568, PACKPP(6, 5, 1) },
216 { 1600, PACKPP(6, 5, 2) }, { 1664, PACKPP(6, 5, 3) },
217 { 1792, PACKPP(6, 5, 4) }, { 2048, PACKPP(6, 5, 5) },
218 { 0, 0 } };
219
220 static u32 partprod(u32 xres)
221 {
222 int i;
223
224 for (i = 0; pp_table[i].width && pp_table[i].width != xres; i++)
225 ;
226 if (pp_table[i].width == 0)
227 DPRINTK("invalid width %u\n", xres);
228 return pp_table[i].pp;
229 }
230
231 static u32 to3264(u32 timing, int bpp, int is64)
232 {
233 switch (bpp) {
234 case 24:
235 timing *= 3;
236 case 8:
237 timing >>= 1;
238 case 16:
239 timing >>= 1;
240 case 32:
241 break;
242 }
243 if (is64)
244 timing >>= 1;
245 return timing;
246 }
247
248 static void pm2_mnp(u32 clk, unsigned char *mm, unsigned char *nn,
249 unsigned char *pp)
250 {
251 unsigned char m;
252 unsigned char n;
253 unsigned char p;
254 u32 f;
255 s32 curr;
256 s32 delta = 100000;
257
258 *mm = *nn = *pp = 0;
259 for (n = 2; n < 15; n++) {
260 for (m = 2; m; m++) {
261 f = PM2_REFERENCE_CLOCK * m / n;
262 if (f >= 150000 && f <= 300000) {
263 for (p = 0; p < 5; p++, f >>= 1) {
264 curr = (clk > f) ? clk - f : f - clk;
265 if (curr < delta) {
266 delta = curr;
267 *mm = m;
268 *nn = n;
269 *pp = p;
270 }
271 }
272 }
273 }
274 }
275 }
276
277 static void pm2v_mnp(u32 clk, unsigned char *mm, unsigned char *nn,
278 unsigned char *pp)
279 {
280 unsigned char m;
281 unsigned char n;
282 unsigned char p;
283 u32 f;
284 s32 delta = 1000;
285
286 *mm = *nn = *pp = 0;
287 for (m = 1; m < 128; m++) {
288 for (n = 2 * m + 1; n; n++) {
289 for (p = 0; p < 2; p++) {
290 f = (PM2_REFERENCE_CLOCK >> (p + 1)) * n / m;
291 if (clk > f - delta && clk < f + delta) {
292 delta = (clk > f) ? clk - f : f - clk;
293 *mm = m;
294 *nn = n;
295 *pp = p;
296 }
297 }
298 }
299 }
300 }
301
302 static void clear_palette(struct pm2fb_par *p)
303 {
304 int i = 256;
305
306 WAIT_FIFO(p, 1);
307 pm2_WR(p, PM2R_RD_PALETTE_WRITE_ADDRESS, 0);
308 wmb();
309 while (i--) {
310 WAIT_FIFO(p, 3);
311 pm2_WR(p, PM2R_RD_PALETTE_DATA, 0);
312 pm2_WR(p, PM2R_RD_PALETTE_DATA, 0);
313 pm2_WR(p, PM2R_RD_PALETTE_DATA, 0);
314 }
315 }
316
317 static void reset_card(struct pm2fb_par *p)
318 {
319 if (p->type == PM2_TYPE_PERMEDIA2V)
320 pm2_WR(p, PM2VR_RD_INDEX_HIGH, 0);
321 pm2_WR(p, PM2R_RESET_STATUS, 0);
322 mb();
323 while (pm2_RD(p, PM2R_RESET_STATUS) & PM2F_BEING_RESET)
324 cpu_relax();
325 mb();
326 #ifdef CONFIG_FB_PM2_FIFO_DISCONNECT
327 DPRINTK("FIFO disconnect enabled\n");
328 pm2_WR(p, PM2R_FIFO_DISCON, 1);
329 mb();
330 #endif
331
332 /* Restore stashed memory config information from probe */
333 WAIT_FIFO(p, 3);
334 pm2_WR(p, PM2R_MEM_CONTROL, p->mem_control);
335 pm2_WR(p, PM2R_BOOT_ADDRESS, p->boot_address);
336 wmb();
337 pm2_WR(p, PM2R_MEM_CONFIG, p->mem_config);
338 }
339
340 static void reset_config(struct pm2fb_par *p)
341 {
342 WAIT_FIFO(p, 53);
343 pm2_WR(p, PM2R_CHIP_CONFIG, pm2_RD(p, PM2R_CHIP_CONFIG) &
344 ~(PM2F_VGA_ENABLE | PM2F_VGA_FIXED));
345 pm2_WR(p, PM2R_BYPASS_WRITE_MASK, ~(0L));
346 pm2_WR(p, PM2R_FRAMEBUFFER_WRITE_MASK, ~(0L));
347 pm2_WR(p, PM2R_FIFO_CONTROL, 0);
348 pm2_WR(p, PM2R_APERTURE_ONE, 0);
349 pm2_WR(p, PM2R_APERTURE_TWO, 0);
350 pm2_WR(p, PM2R_RASTERIZER_MODE, 0);
351 pm2_WR(p, PM2R_DELTA_MODE, PM2F_DELTA_ORDER_RGB);
352 pm2_WR(p, PM2R_LB_READ_FORMAT, 0);
353 pm2_WR(p, PM2R_LB_WRITE_FORMAT, 0);
354 pm2_WR(p, PM2R_LB_READ_MODE, 0);
355 pm2_WR(p, PM2R_LB_SOURCE_OFFSET, 0);
356 pm2_WR(p, PM2R_FB_SOURCE_OFFSET, 0);
357 pm2_WR(p, PM2R_FB_PIXEL_OFFSET, 0);
358 pm2_WR(p, PM2R_FB_WINDOW_BASE, 0);
359 pm2_WR(p, PM2R_LB_WINDOW_BASE, 0);
360 pm2_WR(p, PM2R_FB_SOFT_WRITE_MASK, ~(0L));
361 pm2_WR(p, PM2R_FB_HARD_WRITE_MASK, ~(0L));
362 pm2_WR(p, PM2R_FB_READ_PIXEL, 0);
363 pm2_WR(p, PM2R_DITHER_MODE, 0);
364 pm2_WR(p, PM2R_AREA_STIPPLE_MODE, 0);
365 pm2_WR(p, PM2R_DEPTH_MODE, 0);
366 pm2_WR(p, PM2R_STENCIL_MODE, 0);
367 pm2_WR(p, PM2R_TEXTURE_ADDRESS_MODE, 0);
368 pm2_WR(p, PM2R_TEXTURE_READ_MODE, 0);
369 pm2_WR(p, PM2R_TEXEL_LUT_MODE, 0);
370 pm2_WR(p, PM2R_YUV_MODE, 0);
371 pm2_WR(p, PM2R_COLOR_DDA_MODE, 0);
372 pm2_WR(p, PM2R_TEXTURE_COLOR_MODE, 0);
373 pm2_WR(p, PM2R_FOG_MODE, 0);
374 pm2_WR(p, PM2R_ALPHA_BLEND_MODE, 0);
375 pm2_WR(p, PM2R_LOGICAL_OP_MODE, 0);
376 pm2_WR(p, PM2R_STATISTICS_MODE, 0);
377 pm2_WR(p, PM2R_SCISSOR_MODE, 0);
378 pm2_WR(p, PM2R_FILTER_MODE, PM2F_SYNCHRONIZATION);
379 pm2_WR(p, PM2R_RD_PIXEL_MASK, 0xff);
380 switch (p->type) {
381 case PM2_TYPE_PERMEDIA2:
382 pm2_RDAC_WR(p, PM2I_RD_MODE_CONTROL, 0); /* no overlay */
383 pm2_RDAC_WR(p, PM2I_RD_CURSOR_CONTROL, 0);
384 pm2_RDAC_WR(p, PM2I_RD_MISC_CONTROL, PM2F_RD_PALETTE_WIDTH_8);
385 pm2_RDAC_WR(p, PM2I_RD_COLOR_KEY_CONTROL, 0);
386 pm2_RDAC_WR(p, PM2I_RD_OVERLAY_KEY, 0);
387 pm2_RDAC_WR(p, PM2I_RD_RED_KEY, 0);
388 pm2_RDAC_WR(p, PM2I_RD_GREEN_KEY, 0);
389 pm2_RDAC_WR(p, PM2I_RD_BLUE_KEY, 0);
390 break;
391 case PM2_TYPE_PERMEDIA2V:
392 pm2v_RDAC_WR(p, PM2VI_RD_MISC_CONTROL, 1); /* 8bit */
393 break;
394 }
395 }
396
397 static void set_aperture(struct pm2fb_par *p, u32 depth)
398 {
399 /*
400 * The hardware is little-endian. When used in big-endian
401 * hosts, the on-chip aperture settings are used where
402 * possible to translate from host to card byte order.
403 */
404 WAIT_FIFO(p, 2);
405 #ifdef __LITTLE_ENDIAN
406 pm2_WR(p, PM2R_APERTURE_ONE, PM2F_APERTURE_STANDARD);
407 #else
408 switch (depth) {
409 case 24: /* RGB->BGR */
410 /*
411 * We can't use the aperture to translate host to
412 * card byte order here, so we switch to BGR mode
413 * in pm2fb_set_par().
414 */
415 case 8: /* B->B */
416 pm2_WR(p, PM2R_APERTURE_ONE, PM2F_APERTURE_STANDARD);
417 break;
418 case 16: /* HL->LH */
419 pm2_WR(p, PM2R_APERTURE_ONE, PM2F_APERTURE_HALFWORDSWAP);
420 break;
421 case 32: /* RGBA->ABGR */
422 pm2_WR(p, PM2R_APERTURE_ONE, PM2F_APERTURE_BYTESWAP);
423 break;
424 }
425 #endif
426
427 /* We don't use aperture two, so this may be superflous */
428 pm2_WR(p, PM2R_APERTURE_TWO, PM2F_APERTURE_STANDARD);
429 }
430
431 static void set_color(struct pm2fb_par *p, unsigned char regno,
432 unsigned char r, unsigned char g, unsigned char b)
433 {
434 WAIT_FIFO(p, 4);
435 pm2_WR(p, PM2R_RD_PALETTE_WRITE_ADDRESS, regno);
436 wmb();
437 pm2_WR(p, PM2R_RD_PALETTE_DATA, r);
438 wmb();
439 pm2_WR(p, PM2R_RD_PALETTE_DATA, g);
440 wmb();
441 pm2_WR(p, PM2R_RD_PALETTE_DATA, b);
442 }
443
444 static void set_memclock(struct pm2fb_par *par, u32 clk)
445 {
446 int i;
447 unsigned char m, n, p;
448
449 switch (par->type) {
450 case PM2_TYPE_PERMEDIA2V:
451 pm2v_mnp(clk/2, &m, &n, &p);
452 WAIT_FIFO(par, 12);
453 pm2_WR(par, PM2VR_RD_INDEX_HIGH, PM2VI_RD_MCLK_CONTROL >> 8);
454 pm2v_RDAC_WR(par, PM2VI_RD_MCLK_CONTROL, 0);
455 pm2v_RDAC_WR(par, PM2VI_RD_MCLK_PRESCALE, m);
456 pm2v_RDAC_WR(par, PM2VI_RD_MCLK_FEEDBACK, n);
457 pm2v_RDAC_WR(par, PM2VI_RD_MCLK_POSTSCALE, p);
458 pm2v_RDAC_WR(par, PM2VI_RD_MCLK_CONTROL, 1);
459 rmb();
460 for (i = 256; i; i--)
461 if (pm2v_RDAC_RD(par, PM2VI_RD_MCLK_CONTROL) & 2)
462 break;
463 pm2_WR(par, PM2VR_RD_INDEX_HIGH, 0);
464 break;
465 case PM2_TYPE_PERMEDIA2:
466 pm2_mnp(clk, &m, &n, &p);
467 WAIT_FIFO(par, 10);
468 pm2_RDAC_WR(par, PM2I_RD_MEMORY_CLOCK_3, 6);
469 pm2_RDAC_WR(par, PM2I_RD_MEMORY_CLOCK_1, m);
470 pm2_RDAC_WR(par, PM2I_RD_MEMORY_CLOCK_2, n);
471 pm2_RDAC_WR(par, PM2I_RD_MEMORY_CLOCK_3, 8|p);
472 pm2_RDAC_RD(par, PM2I_RD_MEMORY_CLOCK_STATUS);
473 rmb();
474 for (i = 256; i; i--)
475 if (pm2_RD(par, PM2R_RD_INDEXED_DATA) & PM2F_PLL_LOCKED)
476 break;
477 break;
478 }
479 }
480
481 static void set_pixclock(struct pm2fb_par *par, u32 clk)
482 {
483 int i;
484 unsigned char m, n, p;
485
486 switch (par->type) {
487 case PM2_TYPE_PERMEDIA2:
488 pm2_mnp(clk, &m, &n, &p);
489 WAIT_FIFO(par, 10);
490 pm2_RDAC_WR(par, PM2I_RD_PIXEL_CLOCK_A3, 0);
491 pm2_RDAC_WR(par, PM2I_RD_PIXEL_CLOCK_A1, m);
492 pm2_RDAC_WR(par, PM2I_RD_PIXEL_CLOCK_A2, n);
493 pm2_RDAC_WR(par, PM2I_RD_PIXEL_CLOCK_A3, 8|p);
494 pm2_RDAC_RD(par, PM2I_RD_PIXEL_CLOCK_STATUS);
495 rmb();
496 for (i = 256; i; i--)
497 if (pm2_RD(par, PM2R_RD_INDEXED_DATA) & PM2F_PLL_LOCKED)
498 break;
499 break;
500 case PM2_TYPE_PERMEDIA2V:
501 pm2v_mnp(clk/2, &m, &n, &p);
502 WAIT_FIFO(par, 8);
503 pm2_WR(par, PM2VR_RD_INDEX_HIGH, PM2VI_RD_CLK0_PRESCALE >> 8);
504 pm2v_RDAC_WR(par, PM2VI_RD_CLK0_PRESCALE, m);
505 pm2v_RDAC_WR(par, PM2VI_RD_CLK0_FEEDBACK, n);
506 pm2v_RDAC_WR(par, PM2VI_RD_CLK0_POSTSCALE, p);
507 pm2_WR(par, PM2VR_RD_INDEX_HIGH, 0);
508 break;
509 }
510 }
511
512 static void set_video(struct pm2fb_par *p, u32 video)
513 {
514 u32 tmp;
515 u32 vsync = video;
516
517 DPRINTK("video = 0x%x\n", video);
518
519 /*
520 * The hardware cursor needs +vsync to recognise vert retrace.
521 * We may not be using the hardware cursor, but the X Glint
522 * driver may well. So always set +hsync/+vsync and then set
523 * the RAMDAC to invert the sync if necessary.
524 */
525 vsync &= ~(PM2F_HSYNC_MASK | PM2F_VSYNC_MASK);
526 vsync |= PM2F_HSYNC_ACT_HIGH | PM2F_VSYNC_ACT_HIGH;
527
528 WAIT_FIFO(p, 3);
529 pm2_WR(p, PM2R_VIDEO_CONTROL, vsync);
530
531 switch (p->type) {
532 case PM2_TYPE_PERMEDIA2:
533 tmp = PM2F_RD_PALETTE_WIDTH_8;
534 if ((video & PM2F_HSYNC_MASK) == PM2F_HSYNC_ACT_LOW)
535 tmp |= 4; /* invert hsync */
536 if ((video & PM2F_VSYNC_MASK) == PM2F_VSYNC_ACT_LOW)
537 tmp |= 8; /* invert vsync */
538 pm2_RDAC_WR(p, PM2I_RD_MISC_CONTROL, tmp);
539 break;
540 case PM2_TYPE_PERMEDIA2V:
541 tmp = 0;
542 if ((video & PM2F_HSYNC_MASK) == PM2F_HSYNC_ACT_LOW)
543 tmp |= 1; /* invert hsync */
544 if ((video & PM2F_VSYNC_MASK) == PM2F_VSYNC_ACT_LOW)
545 tmp |= 4; /* invert vsync */
546 pm2v_RDAC_WR(p, PM2VI_RD_SYNC_CONTROL, tmp);
547 break;
548 }
549 }
550
551 /*
552 * pm2fb_check_var - Optional function. Validates a var passed in.
553 * @var: frame buffer variable screen structure
554 * @info: frame buffer structure that represents a single frame buffer
555 *
556 * Checks to see if the hardware supports the state requested by
557 * var passed in.
558 *
559 * Returns negative errno on error, or zero on success.
560 */
561 static int pm2fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
562 {
563 u32 lpitch;
564
565 if (var->bits_per_pixel != 8 && var->bits_per_pixel != 16 &&
566 var->bits_per_pixel != 24 && var->bits_per_pixel != 32) {
567 DPRINTK("depth not supported: %u\n", var->bits_per_pixel);
568 return -EINVAL;
569 }
570
571 if (var->xres != var->xres_virtual) {
572 DPRINTK("virtual x resolution != "
573 "physical x resolution not supported\n");
574 return -EINVAL;
575 }
576
577 if (var->yres > var->yres_virtual) {
578 DPRINTK("virtual y resolution < "
579 "physical y resolution not possible\n");
580 return -EINVAL;
581 }
582
583 /* permedia cannot blit over 2048 */
584 if (var->yres_virtual > 2047) {
585 var->yres_virtual = 2047;
586 }
587
588 if (var->xoffset) {
589 DPRINTK("xoffset not supported\n");
590 return -EINVAL;
591 }
592
593 if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) {
594 DPRINTK("interlace not supported\n");
595 return -EINVAL;
596 }
597
598 var->xres = (var->xres + 15) & ~15; /* could sometimes be 8 */
599 lpitch = var->xres * ((var->bits_per_pixel + 7) >> 3);
600
601 if (var->xres < 320 || var->xres > 1600) {
602 DPRINTK("width not supported: %u\n", var->xres);
603 return -EINVAL;
604 }
605
606 if (var->yres < 200 || var->yres > 1200) {
607 DPRINTK("height not supported: %u\n", var->yres);
608 return -EINVAL;
609 }
610
611 if (lpitch * var->yres_virtual > info->fix.smem_len) {
612 DPRINTK("no memory for screen (%ux%ux%u)\n",
613 var->xres, var->yres_virtual, var->bits_per_pixel);
614 return -EINVAL;
615 }
616
617 if (PICOS2KHZ(var->pixclock) > PM2_MAX_PIXCLOCK) {
618 DPRINTK("pixclock too high (%ldKHz)\n",
619 PICOS2KHZ(var->pixclock));
620 return -EINVAL;
621 }
622
623 var->transp.offset = 0;
624 var->transp.length = 0;
625 switch (var->bits_per_pixel) {
626 case 8:
627 var->red.length = 8;
628 var->green.length = 8;
629 var->blue.length = 8;
630 break;
631 case 16:
632 var->red.offset = 11;
633 var->red.length = 5;
634 var->green.offset = 5;
635 var->green.length = 6;
636 var->blue.offset = 0;
637 var->blue.length = 5;
638 break;
639 case 32:
640 var->transp.offset = 24;
641 var->transp.length = 8;
642 var->red.offset = 16;
643 var->green.offset = 8;
644 var->blue.offset = 0;
645 var->red.length = 8;
646 var->green.length = 8;
647 var->blue.length = 8;
648 break;
649 case 24:
650 #ifdef __BIG_ENDIAN
651 var->red.offset = 0;
652 var->blue.offset = 16;
653 #else
654 var->red.offset = 16;
655 var->blue.offset = 0;
656 #endif
657 var->green.offset = 8;
658 var->red.length = 8;
659 var->green.length = 8;
660 var->blue.length = 8;
661 break;
662 }
663 var->height = -1;
664 var->width = -1;
665
666 var->accel_flags = 0; /* Can't mmap if this is on */
667
668 DPRINTK("Checking graphics mode at %dx%d depth %d\n",
669 var->xres, var->yres, var->bits_per_pixel);
670 return 0;
671 }
672
673 /**
674 * pm2fb_set_par - Alters the hardware state.
675 * @info: frame buffer structure that represents a single frame buffer
676 *
677 * Using the fb_var_screeninfo in fb_info we set the resolution of the
678 * this particular framebuffer.
679 */
680 static int pm2fb_set_par(struct fb_info *info)
681 {
682 struct pm2fb_par *par = info->par;
683 u32 pixclock;
684 u32 width = (info->var.xres_virtual + 7) & ~7;
685 u32 height = info->var.yres_virtual;
686 u32 depth = (info->var.bits_per_pixel + 7) & ~7;
687 u32 hsstart, hsend, hbend, htotal;
688 u32 vsstart, vsend, vbend, vtotal;
689 u32 stride;
690 u32 base;
691 u32 video = 0;
692 u32 clrmode = PM2F_RD_COLOR_MODE_RGB | PM2F_RD_GUI_ACTIVE;
693 u32 txtmap = 0;
694 u32 pixsize = 0;
695 u32 clrformat = 0;
696 u32 misc = 1; /* 8-bit DAC */
697 u32 xres = (info->var.xres + 31) & ~31;
698 int data64;
699
700 reset_card(par);
701 reset_config(par);
702 clear_palette(par);
703 if (par->memclock)
704 set_memclock(par, par->memclock);
705
706 depth = (depth > 32) ? 32 : depth;
707 data64 = depth > 8 || par->type == PM2_TYPE_PERMEDIA2V;
708
709 pixclock = PICOS2KHZ(info->var.pixclock);
710 if (pixclock > PM2_MAX_PIXCLOCK) {
711 DPRINTK("pixclock too high (%uKHz)\n", pixclock);
712 return -EINVAL;
713 }
714
715 hsstart = to3264(info->var.right_margin, depth, data64);
716 hsend = hsstart + to3264(info->var.hsync_len, depth, data64);
717 hbend = hsend + to3264(info->var.left_margin, depth, data64);
718 htotal = to3264(xres, depth, data64) + hbend - 1;
719 vsstart = (info->var.lower_margin)
720 ? info->var.lower_margin - 1
721 : 0; /* FIXME! */
722 vsend = info->var.lower_margin + info->var.vsync_len - 1;
723 vbend = info->var.lower_margin + info->var.vsync_len +
724 info->var.upper_margin;
725 vtotal = info->var.yres + vbend - 1;
726 stride = to3264(width, depth, 1);
727 base = to3264(info->var.yoffset * xres + info->var.xoffset, depth, 1);
728 if (data64)
729 video |= PM2F_DATA_64_ENABLE;
730
731 if (info->var.sync & FB_SYNC_HOR_HIGH_ACT) {
732 if (lowhsync) {
733 DPRINTK("ignoring +hsync, using -hsync.\n");
734 video |= PM2F_HSYNC_ACT_LOW;
735 } else
736 video |= PM2F_HSYNC_ACT_HIGH;
737 } else
738 video |= PM2F_HSYNC_ACT_LOW;
739
740 if (info->var.sync & FB_SYNC_VERT_HIGH_ACT) {
741 if (lowvsync) {
742 DPRINTK("ignoring +vsync, using -vsync.\n");
743 video |= PM2F_VSYNC_ACT_LOW;
744 } else
745 video |= PM2F_VSYNC_ACT_HIGH;
746 } else
747 video |= PM2F_VSYNC_ACT_LOW;
748
749 if ((info->var.vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) {
750 DPRINTK("interlaced not supported\n");
751 return -EINVAL;
752 }
753 if ((info->var.vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE)
754 video |= PM2F_LINE_DOUBLE;
755 if ((info->var.activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW)
756 video |= PM2F_VIDEO_ENABLE;
757 par->video = video;
758
759 info->fix.visual =
760 (depth == 8) ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
761 info->fix.line_length = info->var.xres * depth / 8;
762 info->cmap.len = 256;
763
764 /*
765 * Settings calculated. Now write them out.
766 */
767 if (par->type == PM2_TYPE_PERMEDIA2V) {
768 WAIT_FIFO(par, 1);
769 pm2_WR(par, PM2VR_RD_INDEX_HIGH, 0);
770 }
771
772 set_aperture(par, depth);
773
774 mb();
775 WAIT_FIFO(par, 19);
776 switch (depth) {
777 case 8:
778 pm2_WR(par, PM2R_FB_READ_PIXEL, 0);
779 clrformat = 0x2e;
780 break;
781 case 16:
782 pm2_WR(par, PM2R_FB_READ_PIXEL, 1);
783 clrmode |= PM2F_RD_TRUECOLOR | PM2F_RD_PIXELFORMAT_RGB565;
784 txtmap = PM2F_TEXTEL_SIZE_16;
785 pixsize = 1;
786 clrformat = 0x70;
787 misc |= 8;
788 break;
789 case 32:
790 pm2_WR(par, PM2R_FB_READ_PIXEL, 2);
791 clrmode |= PM2F_RD_TRUECOLOR | PM2F_RD_PIXELFORMAT_RGBA8888;
792 txtmap = PM2F_TEXTEL_SIZE_32;
793 pixsize = 2;
794 clrformat = 0x20;
795 misc |= 8;
796 break;
797 case 24:
798 pm2_WR(par, PM2R_FB_READ_PIXEL, 4);
799 clrmode |= PM2F_RD_TRUECOLOR | PM2F_RD_PIXELFORMAT_RGB888;
800 txtmap = PM2F_TEXTEL_SIZE_24;
801 pixsize = 4;
802 clrformat = 0x20;
803 misc |= 8;
804 break;
805 }
806 pm2_WR(par, PM2R_FB_WRITE_MODE, PM2F_FB_WRITE_ENABLE);
807 pm2_WR(par, PM2R_FB_READ_MODE, partprod(xres));
808 pm2_WR(par, PM2R_LB_READ_MODE, partprod(xres));
809 pm2_WR(par, PM2R_TEXTURE_MAP_FORMAT, txtmap | partprod(xres));
810 pm2_WR(par, PM2R_H_TOTAL, htotal);
811 pm2_WR(par, PM2R_HS_START, hsstart);
812 pm2_WR(par, PM2R_HS_END, hsend);
813 pm2_WR(par, PM2R_HG_END, hbend);
814 pm2_WR(par, PM2R_HB_END, hbend);
815 pm2_WR(par, PM2R_V_TOTAL, vtotal);
816 pm2_WR(par, PM2R_VS_START, vsstart);
817 pm2_WR(par, PM2R_VS_END, vsend);
818 pm2_WR(par, PM2R_VB_END, vbend);
819 pm2_WR(par, PM2R_SCREEN_STRIDE, stride);
820 wmb();
821 pm2_WR(par, PM2R_WINDOW_ORIGIN, 0);
822 pm2_WR(par, PM2R_SCREEN_SIZE, (height << 16) | width);
823 pm2_WR(par, PM2R_SCISSOR_MODE, PM2F_SCREEN_SCISSOR_ENABLE);
824 wmb();
825 pm2_WR(par, PM2R_SCREEN_BASE, base);
826 wmb();
827 set_video(par, video);
828 WAIT_FIFO(par, 10);
829 switch (par->type) {
830 case PM2_TYPE_PERMEDIA2:
831 pm2_RDAC_WR(par, PM2I_RD_COLOR_MODE, clrmode);
832 pm2_RDAC_WR(par, PM2I_RD_COLOR_KEY_CONTROL,
833 (depth == 8) ? 0 : PM2F_COLOR_KEY_TEST_OFF);
834 break;
835 case PM2_TYPE_PERMEDIA2V:
836 pm2v_RDAC_WR(par, PM2VI_RD_DAC_CONTROL, 0);
837 pm2v_RDAC_WR(par, PM2VI_RD_PIXEL_SIZE, pixsize);
838 pm2v_RDAC_WR(par, PM2VI_RD_COLOR_FORMAT, clrformat);
839 pm2v_RDAC_WR(par, PM2VI_RD_MISC_CONTROL, misc);
840 pm2v_RDAC_WR(par, PM2VI_RD_OVERLAY_KEY, 0);
841 break;
842 }
843 set_pixclock(par, pixclock);
844 DPRINTK("Setting graphics mode at %dx%d depth %d\n",
845 info->var.xres, info->var.yres, info->var.bits_per_pixel);
846 return 0;
847 }
848
849 /**
850 * pm2fb_setcolreg - Sets a color register.
851 * @regno: boolean, 0 copy local, 1 get_user() function
852 * @red: frame buffer colormap structure
853 * @green: The green value which can be up to 16 bits wide
854 * @blue: The blue value which can be up to 16 bits wide.
855 * @transp: If supported the alpha value which can be up to 16 bits wide.
856 * @info: frame buffer info structure
857 *
858 * Set a single color register. The values supplied have a 16 bit
859 * magnitude which needs to be scaled in this function for the hardware.
860 * Pretty much a direct lift from tdfxfb.c.
861 *
862 * Returns negative errno on error, or zero on success.
863 */
864 static int pm2fb_setcolreg(unsigned regno, unsigned red, unsigned green,
865 unsigned blue, unsigned transp,
866 struct fb_info *info)
867 {
868 struct pm2fb_par *par = info->par;
869
870 if (regno >= info->cmap.len) /* no. of hw registers */
871 return -EINVAL;
872 /*
873 * Program hardware... do anything you want with transp
874 */
875
876 /* grayscale works only partially under directcolor */
877 /* grayscale = 0.30*R + 0.59*G + 0.11*B */
878 if (info->var.grayscale)
879 red = green = blue = (red * 77 + green * 151 + blue * 28) >> 8;
880
881 /* Directcolor:
882 * var->{color}.offset contains start of bitfield
883 * var->{color}.length contains length of bitfield
884 * {hardwarespecific} contains width of DAC
885 * cmap[X] is programmed to
886 * (X << red.offset) | (X << green.offset) | (X << blue.offset)
887 * RAMDAC[X] is programmed to (red, green, blue)
888 *
889 * Pseudocolor:
890 * uses offset = 0 && length = DAC register width.
891 * var->{color}.offset is 0
892 * var->{color}.length contains width of DAC
893 * cmap is not used
894 * DAC[X] is programmed to (red, green, blue)
895 * Truecolor:
896 * does not use RAMDAC (usually has 3 of them).
897 * var->{color}.offset contains start of bitfield
898 * var->{color}.length contains length of bitfield
899 * cmap is programmed to
900 * (red << red.offset) | (green << green.offset) |
901 * (blue << blue.offset) | (transp << transp.offset)
902 * RAMDAC does not exist
903 */
904 #define CNVT_TOHW(val, width) ((((val) << (width)) + 0x7FFF -(val)) >> 16)
905 switch (info->fix.visual) {
906 case FB_VISUAL_TRUECOLOR:
907 case FB_VISUAL_PSEUDOCOLOR:
908 red = CNVT_TOHW(red, info->var.red.length);
909 green = CNVT_TOHW(green, info->var.green.length);
910 blue = CNVT_TOHW(blue, info->var.blue.length);
911 transp = CNVT_TOHW(transp, info->var.transp.length);
912 break;
913 case FB_VISUAL_DIRECTCOLOR:
914 /* example here assumes 8 bit DAC. Might be different
915 * for your hardware */
916 red = CNVT_TOHW(red, 8);
917 green = CNVT_TOHW(green, 8);
918 blue = CNVT_TOHW(blue, 8);
919 /* hey, there is bug in transp handling... */
920 transp = CNVT_TOHW(transp, 8);
921 break;
922 }
923 #undef CNVT_TOHW
924 /* Truecolor has hardware independent palette */
925 if (info->fix.visual == FB_VISUAL_TRUECOLOR) {
926 u32 v;
927
928 if (regno >= 16)
929 return -EINVAL;
930
931 v = (red << info->var.red.offset) |
932 (green << info->var.green.offset) |
933 (blue << info->var.blue.offset) |
934 (transp << info->var.transp.offset);
935
936 switch (info->var.bits_per_pixel) {
937 case 8:
938 break;
939 case 16:
940 case 24:
941 case 32:
942 par->palette[regno] = v;
943 break;
944 }
945 return 0;
946 } else if (info->fix.visual == FB_VISUAL_PSEUDOCOLOR)
947 set_color(par, regno, red, green, blue);
948
949 return 0;
950 }
951
952 /**
953 * pm2fb_pan_display - Pans the display.
954 * @var: frame buffer variable screen structure
955 * @info: frame buffer structure that represents a single frame buffer
956 *
957 * Pan (or wrap, depending on the `vmode' field) the display using the
958 * `xoffset' and `yoffset' fields of the `var' structure.
959 * If the values don't fit, return -EINVAL.
960 *
961 * Returns negative errno on error, or zero on success.
962 *
963 */
964 static int pm2fb_pan_display(struct fb_var_screeninfo *var,
965 struct fb_info *info)
966 {
967 struct pm2fb_par *p = info->par;
968 u32 base;
969 u32 depth = (info->var.bits_per_pixel + 7) & ~7;
970 u32 xres = (info->var.xres + 31) & ~31;
971
972 depth = (depth > 32) ? 32 : depth;
973 base = to3264(var->yoffset * xres + var->xoffset, depth, 1);
974 WAIT_FIFO(p, 1);
975 pm2_WR(p, PM2R_SCREEN_BASE, base);
976 return 0;
977 }
978
979 /**
980 * pm2fb_blank - Blanks the display.
981 * @blank_mode: the blank mode we want.
982 * @info: frame buffer structure that represents a single frame buffer
983 *
984 * Blank the screen if blank_mode != 0, else unblank. Return 0 if
985 * blanking succeeded, != 0 if un-/blanking failed due to e.g. a
986 * video mode which doesn't support it. Implements VESA suspend
987 * and powerdown modes on hardware that supports disabling hsync/vsync:
988 * blank_mode == 2: suspend vsync
989 * blank_mode == 3: suspend hsync
990 * blank_mode == 4: powerdown
991 *
992 * Returns negative errno on error, or zero on success.
993 *
994 */
995 static int pm2fb_blank(int blank_mode, struct fb_info *info)
996 {
997 struct pm2fb_par *par = info->par;
998 u32 video = par->video;
999
1000 DPRINTK("blank_mode %d\n", blank_mode);
1001
1002 switch (blank_mode) {
1003 case FB_BLANK_UNBLANK:
1004 /* Screen: On */
1005 video |= PM2F_VIDEO_ENABLE;
1006 break;
1007 case FB_BLANK_NORMAL:
1008 /* Screen: Off */
1009 video &= ~PM2F_VIDEO_ENABLE;
1010 break;
1011 case FB_BLANK_VSYNC_SUSPEND:
1012 /* VSync: Off */
1013 video &= ~(PM2F_VSYNC_MASK | PM2F_BLANK_LOW);
1014 break;
1015 case FB_BLANK_HSYNC_SUSPEND:
1016 /* HSync: Off */
1017 video &= ~(PM2F_HSYNC_MASK | PM2F_BLANK_LOW);
1018 break;
1019 case FB_BLANK_POWERDOWN:
1020 /* HSync: Off, VSync: Off */
1021 video &= ~(PM2F_VSYNC_MASK | PM2F_HSYNC_MASK | PM2F_BLANK_LOW);
1022 break;
1023 }
1024 set_video(par, video);
1025 return 0;
1026 }
1027
1028 static int pm2fb_sync(struct fb_info *info)
1029 {
1030 struct pm2fb_par *par = info->par;
1031
1032 WAIT_FIFO(par, 1);
1033 pm2_WR(par, PM2R_SYNC, 0);
1034 mb();
1035 do {
1036 while (pm2_RD(par, PM2R_OUT_FIFO_WORDS) == 0)
1037 cpu_relax();
1038 } while (pm2_RD(par, PM2R_OUT_FIFO) != PM2TAG(PM2R_SYNC));
1039
1040 return 0;
1041 }
1042
1043 static void pm2fb_fillrect(struct fb_info *info,
1044 const struct fb_fillrect *region)
1045 {
1046 struct pm2fb_par *par = info->par;
1047 struct fb_fillrect modded;
1048 int vxres, vyres;
1049 u32 color = (info->fix.visual == FB_VISUAL_TRUECOLOR) ?
1050 ((u32 *)info->pseudo_palette)[region->color] : region->color;
1051
1052 if (info->state != FBINFO_STATE_RUNNING)
1053 return;
1054 if ((info->flags & FBINFO_HWACCEL_DISABLED) ||
1055 region->rop != ROP_COPY ) {
1056 cfb_fillrect(info, region);
1057 return;
1058 }
1059
1060 vxres = info->var.xres_virtual;
1061 vyres = info->var.yres_virtual;
1062
1063 memcpy(&modded, region, sizeof(struct fb_fillrect));
1064
1065 if (!modded.width || !modded.height ||
1066 modded.dx >= vxres || modded.dy >= vyres)
1067 return;
1068
1069 if (modded.dx + modded.width > vxres)
1070 modded.width = vxres - modded.dx;
1071 if (modded.dy + modded.height > vyres)
1072 modded.height = vyres - modded.dy;
1073
1074 if (info->var.bits_per_pixel == 8)
1075 color |= color << 8;
1076 if (info->var.bits_per_pixel <= 16)
1077 color |= color << 16;
1078
1079 WAIT_FIFO(par, 3);
1080 pm2_WR(par, PM2R_CONFIG, PM2F_CONFIG_FB_WRITE_ENABLE);
1081 pm2_WR(par, PM2R_RECTANGLE_ORIGIN, (modded.dy << 16) | modded.dx);
1082 pm2_WR(par, PM2R_RECTANGLE_SIZE, (modded.height << 16) | modded.width);
1083 if (info->var.bits_per_pixel != 24) {
1084 WAIT_FIFO(par, 2);
1085 pm2_WR(par, PM2R_FB_BLOCK_COLOR, color);
1086 wmb();
1087 pm2_WR(par, PM2R_RENDER,
1088 PM2F_RENDER_RECTANGLE | PM2F_RENDER_FASTFILL);
1089 } else {
1090 WAIT_FIFO(par, 4);
1091 pm2_WR(par, PM2R_COLOR_DDA_MODE, 1);
1092 pm2_WR(par, PM2R_CONSTANT_COLOR, color);
1093 wmb();
1094 pm2_WR(par, PM2R_RENDER,
1095 PM2F_RENDER_RECTANGLE |
1096 PM2F_INCREASE_X | PM2F_INCREASE_Y );
1097 pm2_WR(par, PM2R_COLOR_DDA_MODE, 0);
1098 }
1099 }
1100
1101 static void pm2fb_copyarea(struct fb_info *info,
1102 const struct fb_copyarea *area)
1103 {
1104 struct pm2fb_par *par = info->par;
1105 struct fb_copyarea modded;
1106 u32 vxres, vyres;
1107
1108 if (info->state != FBINFO_STATE_RUNNING)
1109 return;
1110 if (info->flags & FBINFO_HWACCEL_DISABLED) {
1111 cfb_copyarea(info, area);
1112 return;
1113 }
1114
1115 memcpy(&modded, area, sizeof(struct fb_copyarea));
1116
1117 vxres = info->var.xres_virtual;
1118 vyres = info->var.yres_virtual;
1119
1120 if (!modded.width || !modded.height ||
1121 modded.sx >= vxres || modded.sy >= vyres ||
1122 modded.dx >= vxres || modded.dy >= vyres)
1123 return;
1124
1125 if (modded.sx + modded.width > vxres)
1126 modded.width = vxres - modded.sx;
1127 if (modded.dx + modded.width > vxres)
1128 modded.width = vxres - modded.dx;
1129 if (modded.sy + modded.height > vyres)
1130 modded.height = vyres - modded.sy;
1131 if (modded.dy + modded.height > vyres)
1132 modded.height = vyres - modded.dy;
1133
1134 WAIT_FIFO(par, 5);
1135 pm2_WR(par, PM2R_CONFIG, PM2F_CONFIG_FB_WRITE_ENABLE |
1136 PM2F_CONFIG_FB_READ_SOURCE_ENABLE);
1137 pm2_WR(par, PM2R_FB_SOURCE_DELTA,
1138 ((modded.sy - modded.dy) & 0xfff) << 16 |
1139 ((modded.sx - modded.dx) & 0xfff));
1140 pm2_WR(par, PM2R_RECTANGLE_ORIGIN, (modded.dy << 16) | modded.dx);
1141 pm2_WR(par, PM2R_RECTANGLE_SIZE, (modded.height << 16) | modded.width);
1142 wmb();
1143 pm2_WR(par, PM2R_RENDER, PM2F_RENDER_RECTANGLE |
1144 (modded.dx < modded.sx ? PM2F_INCREASE_X : 0) |
1145 (modded.dy < modded.sy ? PM2F_INCREASE_Y : 0));
1146 }
1147
1148 static void pm2fb_imageblit(struct fb_info *info, const struct fb_image *image)
1149 {
1150 struct pm2fb_par *par = info->par;
1151 u32 height = image->height;
1152 u32 fgx, bgx;
1153 const u32 *src = (const u32 *)image->data;
1154 u32 xres = (info->var.xres + 31) & ~31;
1155 int raster_mode = 1; /* invert bits */
1156
1157 #ifdef __LITTLE_ENDIAN
1158 raster_mode |= 3 << 7; /* reverse byte order */
1159 #endif
1160
1161 if (info->state != FBINFO_STATE_RUNNING)
1162 return;
1163 if (info->flags & FBINFO_HWACCEL_DISABLED || image->depth != 1) {
1164 cfb_imageblit(info, image);
1165 return;
1166 }
1167 switch (info->fix.visual) {
1168 case FB_VISUAL_PSEUDOCOLOR:
1169 fgx = image->fg_color;
1170 bgx = image->bg_color;
1171 break;
1172 case FB_VISUAL_TRUECOLOR:
1173 default:
1174 fgx = par->palette[image->fg_color];
1175 bgx = par->palette[image->bg_color];
1176 break;
1177 }
1178 if (info->var.bits_per_pixel == 8) {
1179 fgx |= fgx << 8;
1180 bgx |= bgx << 8;
1181 }
1182 if (info->var.bits_per_pixel <= 16) {
1183 fgx |= fgx << 16;
1184 bgx |= bgx << 16;
1185 }
1186
1187 WAIT_FIFO(par, 13);
1188 pm2_WR(par, PM2R_FB_READ_MODE, partprod(xres));
1189 pm2_WR(par, PM2R_SCISSOR_MIN_XY,
1190 ((image->dy & 0xfff) << 16) | (image->dx & 0x0fff));
1191 pm2_WR(par, PM2R_SCISSOR_MAX_XY,
1192 (((image->dy + image->height) & 0x0fff) << 16) |
1193 ((image->dx + image->width) & 0x0fff));
1194 pm2_WR(par, PM2R_SCISSOR_MODE, 1);
1195 /* GXcopy & UNIT_ENABLE */
1196 pm2_WR(par, PM2R_LOGICAL_OP_MODE, (0x3 << 1) | 1);
1197 pm2_WR(par, PM2R_RECTANGLE_ORIGIN,
1198 ((image->dy & 0xfff) << 16) | (image->dx & 0x0fff));
1199 pm2_WR(par, PM2R_RECTANGLE_SIZE,
1200 ((image->height & 0x0fff) << 16) |
1201 ((image->width) & 0x0fff));
1202 if (info->var.bits_per_pixel == 24) {
1203 pm2_WR(par, PM2R_COLOR_DDA_MODE, 1);
1204 /* clear area */
1205 pm2_WR(par, PM2R_CONSTANT_COLOR, bgx);
1206 pm2_WR(par, PM2R_RENDER,
1207 PM2F_RENDER_RECTANGLE |
1208 PM2F_INCREASE_X | PM2F_INCREASE_Y);
1209 /* BitMapPackEachScanline */
1210 pm2_WR(par, PM2R_RASTERIZER_MODE, raster_mode | (1 << 9));
1211 pm2_WR(par, PM2R_CONSTANT_COLOR, fgx);
1212 pm2_WR(par, PM2R_RENDER,
1213 PM2F_RENDER_RECTANGLE |
1214 PM2F_INCREASE_X | PM2F_INCREASE_Y |
1215 PM2F_RENDER_SYNC_ON_BIT_MASK);
1216 } else {
1217 pm2_WR(par, PM2R_COLOR_DDA_MODE, 0);
1218 /* clear area */
1219 pm2_WR(par, PM2R_FB_BLOCK_COLOR, bgx);
1220 pm2_WR(par, PM2R_RENDER,
1221 PM2F_RENDER_RECTANGLE |
1222 PM2F_RENDER_FASTFILL |
1223 PM2F_INCREASE_X | PM2F_INCREASE_Y);
1224 pm2_WR(par, PM2R_RASTERIZER_MODE, raster_mode);
1225 pm2_WR(par, PM2R_FB_BLOCK_COLOR, fgx);
1226 pm2_WR(par, PM2R_RENDER,
1227 PM2F_RENDER_RECTANGLE |
1228 PM2F_INCREASE_X | PM2F_INCREASE_Y |
1229 PM2F_RENDER_FASTFILL |
1230 PM2F_RENDER_SYNC_ON_BIT_MASK);
1231 }
1232
1233 while (height--) {
1234 int width = ((image->width + 7) >> 3)
1235 + info->pixmap.scan_align - 1;
1236 width >>= 2;
1237 WAIT_FIFO(par, width);
1238 while (width--) {
1239 pm2_WR(par, PM2R_BIT_MASK_PATTERN, *src);
1240 src++;
1241 }
1242 }
1243 WAIT_FIFO(par, 3);
1244 pm2_WR(par, PM2R_RASTERIZER_MODE, 0);
1245 pm2_WR(par, PM2R_COLOR_DDA_MODE, 0);
1246 pm2_WR(par, PM2R_SCISSOR_MODE, 0);
1247 }
1248
1249 /*
1250 * Hardware cursor support.
1251 */
1252 static const u8 cursor_bits_lookup[16] = {
1253 0x00, 0x40, 0x10, 0x50, 0x04, 0x44, 0x14, 0x54,
1254 0x01, 0x41, 0x11, 0x51, 0x05, 0x45, 0x15, 0x55
1255 };
1256
1257 static int pm2vfb_cursor(struct fb_info *info, struct fb_cursor *cursor)
1258 {
1259 struct pm2fb_par *par = info->par;
1260 u8 mode = PM2F_CURSORMODE_TYPE_X;
1261 int x = cursor->image.dx - info->var.xoffset;
1262 int y = cursor->image.dy - info->var.yoffset;
1263
1264 if (cursor->enable)
1265 mode |= PM2F_CURSORMODE_CURSOR_ENABLE;
1266
1267 pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_MODE, mode);
1268
1269 if (!cursor->enable)
1270 x = 2047; /* push it outside display */
1271 pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_X_LOW, x & 0xff);
1272 pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_X_HIGH, (x >> 8) & 0xf);
1273 pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_Y_LOW, y & 0xff);
1274 pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_Y_HIGH, (y >> 8) & 0xf);
1275
1276 /*
1277 * If the cursor is not be changed this means either we want the
1278 * current cursor state (if enable is set) or we want to query what
1279 * we can do with the cursor (if enable is not set)
1280 */
1281 if (!cursor->set)
1282 return 0;
1283
1284 if (cursor->set & FB_CUR_SETHOT) {
1285 pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_X_HOT,
1286 cursor->hot.x & 0x3f);
1287 pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_Y_HOT,
1288 cursor->hot.y & 0x3f);
1289 }
1290
1291 if (cursor->set & FB_CUR_SETCMAP) {
1292 u32 fg_idx = cursor->image.fg_color;
1293 u32 bg_idx = cursor->image.bg_color;
1294 struct fb_cmap cmap = info->cmap;
1295
1296 /* the X11 driver says one should use these color registers */
1297 pm2_WR(par, PM2VR_RD_INDEX_HIGH, PM2VI_RD_CURSOR_PALETTE >> 8);
1298 pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_PALETTE + 0,
1299 cmap.red[bg_idx] >> 8 );
1300 pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_PALETTE + 1,
1301 cmap.green[bg_idx] >> 8 );
1302 pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_PALETTE + 2,
1303 cmap.blue[bg_idx] >> 8 );
1304
1305 pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_PALETTE + 3,
1306 cmap.red[fg_idx] >> 8 );
1307 pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_PALETTE + 4,
1308 cmap.green[fg_idx] >> 8 );
1309 pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_PALETTE + 5,
1310 cmap.blue[fg_idx] >> 8 );
1311 pm2_WR(par, PM2VR_RD_INDEX_HIGH, 0);
1312 }
1313
1314 if (cursor->set & (FB_CUR_SETSHAPE | FB_CUR_SETIMAGE)) {
1315 u8 *bitmap = (u8 *)cursor->image.data;
1316 u8 *mask = (u8 *)cursor->mask;
1317 int i;
1318 int pos = PM2VI_RD_CURSOR_PATTERN;
1319
1320 for (i = 0; i < cursor->image.height; i++) {
1321 int j = (cursor->image.width + 7) >> 3;
1322 int k = 8 - j;
1323
1324 pm2_WR(par, PM2VR_RD_INDEX_HIGH, pos >> 8);
1325
1326 for (; j > 0; j--) {
1327 u8 data = *bitmap ^ *mask;
1328
1329 if (cursor->rop == ROP_COPY)
1330 data = *mask & *bitmap;
1331 /* Upper 4 bits of bitmap data */
1332 pm2v_RDAC_WR(par, pos++,
1333 cursor_bits_lookup[data >> 4] |
1334 (cursor_bits_lookup[*mask >> 4] << 1));
1335 /* Lower 4 bits of bitmap */
1336 pm2v_RDAC_WR(par, pos++,
1337 cursor_bits_lookup[data & 0xf] |
1338 (cursor_bits_lookup[*mask & 0xf] << 1));
1339 bitmap++;
1340 mask++;
1341 }
1342 for (; k > 0; k--) {
1343 pm2v_RDAC_WR(par, pos++, 0);
1344 pm2v_RDAC_WR(par, pos++, 0);
1345 }
1346 }
1347
1348 while (pos < (1024 + PM2VI_RD_CURSOR_PATTERN)) {
1349 pm2_WR(par, PM2VR_RD_INDEX_HIGH, pos >> 8);
1350 pm2v_RDAC_WR(par, pos++, 0);
1351 }
1352
1353 pm2_WR(par, PM2VR_RD_INDEX_HIGH, 0);
1354 }
1355 return 0;
1356 }
1357
1358 static int pm2fb_cursor(struct fb_info *info, struct fb_cursor *cursor)
1359 {
1360 struct pm2fb_par *par = info->par;
1361 u8 mode;
1362
1363 if (!hwcursor)
1364 return -EINVAL; /* just to force soft_cursor() call */
1365
1366 /* Too large of a cursor or wrong bpp :-( */
1367 if (cursor->image.width > 64 ||
1368 cursor->image.height > 64 ||
1369 cursor->image.depth > 1)
1370 return -EINVAL;
1371
1372 if (par->type == PM2_TYPE_PERMEDIA2V)
1373 return pm2vfb_cursor(info, cursor);
1374
1375 mode = 0x40;
1376 if (cursor->enable)
1377 mode = 0x43;
1378
1379 pm2_RDAC_WR(par, PM2I_RD_CURSOR_CONTROL, mode);
1380
1381 /*
1382 * If the cursor is not be changed this means either we want the
1383 * current cursor state (if enable is set) or we want to query what
1384 * we can do with the cursor (if enable is not set)
1385 */
1386 if (!cursor->set)
1387 return 0;
1388
1389 if (cursor->set & FB_CUR_SETPOS) {
1390 int x = cursor->image.dx - info->var.xoffset + 63;
1391 int y = cursor->image.dy - info->var.yoffset + 63;
1392
1393 WAIT_FIFO(par, 4);
1394 pm2_WR(par, PM2R_RD_CURSOR_X_LSB, x & 0xff);
1395 pm2_WR(par, PM2R_RD_CURSOR_X_MSB, (x >> 8) & 0x7);
1396 pm2_WR(par, PM2R_RD_CURSOR_Y_LSB, y & 0xff);
1397 pm2_WR(par, PM2R_RD_CURSOR_Y_MSB, (y >> 8) & 0x7);
1398 }
1399
1400 if (cursor->set & FB_CUR_SETCMAP) {
1401 u32 fg_idx = cursor->image.fg_color;
1402 u32 bg_idx = cursor->image.bg_color;
1403
1404 WAIT_FIFO(par, 7);
1405 pm2_WR(par, PM2R_RD_CURSOR_COLOR_ADDRESS, 1);
1406 pm2_WR(par, PM2R_RD_CURSOR_COLOR_DATA,
1407 info->cmap.red[bg_idx] >> 8);
1408 pm2_WR(par, PM2R_RD_CURSOR_COLOR_DATA,
1409 info->cmap.green[bg_idx] >> 8);
1410 pm2_WR(par, PM2R_RD_CURSOR_COLOR_DATA,
1411 info->cmap.blue[bg_idx] >> 8);
1412
1413 pm2_WR(par, PM2R_RD_CURSOR_COLOR_DATA,
1414 info->cmap.red[fg_idx] >> 8);
1415 pm2_WR(par, PM2R_RD_CURSOR_COLOR_DATA,
1416 info->cmap.green[fg_idx] >> 8);
1417 pm2_WR(par, PM2R_RD_CURSOR_COLOR_DATA,
1418 info->cmap.blue[fg_idx] >> 8);
1419 }
1420
1421 if (cursor->set & (FB_CUR_SETSHAPE | FB_CUR_SETIMAGE)) {
1422 u8 *bitmap = (u8 *)cursor->image.data;
1423 u8 *mask = (u8 *)cursor->mask;
1424 int i;
1425
1426 WAIT_FIFO(par, 1);
1427 pm2_WR(par, PM2R_RD_PALETTE_WRITE_ADDRESS, 0);
1428
1429 for (i = 0; i < cursor->image.height; i++) {
1430 int j = (cursor->image.width + 7) >> 3;
1431 int k = 8 - j;
1432
1433 WAIT_FIFO(par, 8);
1434 for (; j > 0; j--) {
1435 u8 data = *bitmap ^ *mask;
1436
1437 if (cursor->rop == ROP_COPY)
1438 data = *mask & *bitmap;
1439 /* bitmap data */
1440 pm2_WR(par, PM2R_RD_CURSOR_DATA, data);
1441 bitmap++;
1442 mask++;
1443 }
1444 for (; k > 0; k--)
1445 pm2_WR(par, PM2R_RD_CURSOR_DATA, 0);
1446 }
1447 for (; i < 64; i++) {
1448 int j = 8;
1449 WAIT_FIFO(par, 8);
1450 while (j-- > 0)
1451 pm2_WR(par, PM2R_RD_CURSOR_DATA, 0);
1452 }
1453
1454 mask = (u8 *)cursor->mask;
1455 for (i = 0; i < cursor->image.height; i++) {
1456 int j = (cursor->image.width + 7) >> 3;
1457 int k = 8 - j;
1458
1459 WAIT_FIFO(par, 8);
1460 for (; j > 0; j--) {
1461 /* mask */
1462 pm2_WR(par, PM2R_RD_CURSOR_DATA, *mask);
1463 mask++;
1464 }
1465 for (; k > 0; k--)
1466 pm2_WR(par, PM2R_RD_CURSOR_DATA, 0);
1467 }
1468 for (; i < 64; i++) {
1469 int j = 8;
1470 WAIT_FIFO(par, 8);
1471 while (j-- > 0)
1472 pm2_WR(par, PM2R_RD_CURSOR_DATA, 0);
1473 }
1474 }
1475 return 0;
1476 }
1477
1478 /* ------------ Hardware Independent Functions ------------ */
1479
1480 /*
1481 * Frame buffer operations
1482 */
1483
1484 static struct fb_ops pm2fb_ops = {
1485 .owner = THIS_MODULE,
1486 .fb_check_var = pm2fb_check_var,
1487 .fb_set_par = pm2fb_set_par,
1488 .fb_setcolreg = pm2fb_setcolreg,
1489 .fb_blank = pm2fb_blank,
1490 .fb_pan_display = pm2fb_pan_display,
1491 .fb_fillrect = pm2fb_fillrect,
1492 .fb_copyarea = pm2fb_copyarea,
1493 .fb_imageblit = pm2fb_imageblit,
1494 .fb_sync = pm2fb_sync,
1495 .fb_cursor = pm2fb_cursor,
1496 };
1497
1498 /*
1499 * PCI stuff
1500 */
1501
1502
1503 /**
1504 * Device initialisation
1505 *
1506 * Initialise and allocate resource for PCI device.
1507 *
1508 * @param pdev PCI device.
1509 * @param id PCI device ID.
1510 */
1511 static int pm2fb_probe(struct pci_dev *pdev, const struct pci_device_id *id)
1512 {
1513 struct pm2fb_par *default_par;
1514 struct fb_info *info;
1515 int err;
1516 int retval = -ENXIO;
1517
1518 err = pci_enable_device(pdev);
1519 if (err) {
1520 printk(KERN_WARNING "pm2fb: Can't enable pdev: %d\n", err);
1521 return err;
1522 }
1523
1524 info = framebuffer_alloc(sizeof(struct pm2fb_par), &pdev->dev);
1525 if (!info)
1526 return -ENOMEM;
1527 default_par = info->par;
1528
1529 switch (pdev->device) {
1530 case PCI_DEVICE_ID_TI_TVP4020:
1531 strcpy(pm2fb_fix.id, "TVP4020");
1532 default_par->type = PM2_TYPE_PERMEDIA2;
1533 break;
1534 case PCI_DEVICE_ID_3DLABS_PERMEDIA2:
1535 strcpy(pm2fb_fix.id, "Permedia2");
1536 default_par->type = PM2_TYPE_PERMEDIA2;
1537 break;
1538 case PCI_DEVICE_ID_3DLABS_PERMEDIA2V:
1539 strcpy(pm2fb_fix.id, "Permedia2v");
1540 default_par->type = PM2_TYPE_PERMEDIA2V;
1541 break;
1542 }
1543
1544 pm2fb_fix.mmio_start = pci_resource_start(pdev, 0);
1545 pm2fb_fix.mmio_len = PM2_REGS_SIZE;
1546
1547 #if defined(__BIG_ENDIAN)
1548 /*
1549 * PM2 has a 64k register file, mapped twice in 128k. Lower
1550 * map is little-endian, upper map is big-endian.
1551 */
1552 pm2fb_fix.mmio_start += PM2_REGS_SIZE;
1553 DPRINTK("Adjusting register base for big-endian.\n");
1554 #endif
1555 DPRINTK("Register base at 0x%lx\n", pm2fb_fix.mmio_start);
1556
1557 /* Registers - request region and map it. */
1558 if (!request_mem_region(pm2fb_fix.mmio_start, pm2fb_fix.mmio_len,
1559 "pm2fb regbase")) {
1560 printk(KERN_WARNING "pm2fb: Can't reserve regbase.\n");
1561 goto err_exit_neither;
1562 }
1563 default_par->v_regs =
1564 ioremap_nocache(pm2fb_fix.mmio_start, pm2fb_fix.mmio_len);
1565 if (!default_par->v_regs) {
1566 printk(KERN_WARNING "pm2fb: Can't remap %s register area.\n",
1567 pm2fb_fix.id);
1568 release_mem_region(pm2fb_fix.mmio_start, pm2fb_fix.mmio_len);
1569 goto err_exit_neither;
1570 }
1571
1572 /* Stash away memory register info for use when we reset the board */
1573 default_par->mem_control = pm2_RD(default_par, PM2R_MEM_CONTROL);
1574 default_par->boot_address = pm2_RD(default_par, PM2R_BOOT_ADDRESS);
1575 default_par->mem_config = pm2_RD(default_par, PM2R_MEM_CONFIG);
1576 DPRINTK("MemControl 0x%x BootAddress 0x%x MemConfig 0x%x\n",
1577 default_par->mem_control, default_par->boot_address,
1578 default_par->mem_config);
1579
1580 if (default_par->mem_control == 0 &&
1581 default_par->boot_address == 0x31 &&
1582 default_par->mem_config == 0x259fffff) {
1583 default_par->memclock = CVPPC_MEMCLOCK;
1584 default_par->mem_control = 0;
1585 default_par->boot_address = 0x20;
1586 default_par->mem_config = 0xe6002021;
1587 if (pdev->subsystem_vendor == 0x1048 &&
1588 pdev->subsystem_device == 0x0a31) {
1589 DPRINTK("subsystem_vendor: %04x, "
1590 "subsystem_device: %04x\n",
1591 pdev->subsystem_vendor, pdev->subsystem_device);
1592 DPRINTK("We have not been initialized by VGA BIOS and "
1593 "are running on an Elsa Winner 2000 Office\n");
1594 DPRINTK("Initializing card timings manually...\n");
1595 default_par->memclock = 100000;
1596 }
1597 if (pdev->subsystem_vendor == 0x3d3d &&
1598 pdev->subsystem_device == 0x0100) {
1599 DPRINTK("subsystem_vendor: %04x, "
1600 "subsystem_device: %04x\n",
1601 pdev->subsystem_vendor, pdev->subsystem_device);
1602 DPRINTK("We have not been initialized by VGA BIOS and "
1603 "are running on an 3dlabs reference board\n");
1604 DPRINTK("Initializing card timings manually...\n");
1605 default_par->memclock = 74894;
1606 }
1607 }
1608
1609 /* Now work out how big lfb is going to be. */
1610 switch (default_par->mem_config & PM2F_MEM_CONFIG_RAM_MASK) {
1611 case PM2F_MEM_BANKS_1:
1612 pm2fb_fix.smem_len = 0x200000;
1613 break;
1614 case PM2F_MEM_BANKS_2:
1615 pm2fb_fix.smem_len = 0x400000;
1616 break;
1617 case PM2F_MEM_BANKS_3:
1618 pm2fb_fix.smem_len = 0x600000;
1619 break;
1620 case PM2F_MEM_BANKS_4:
1621 pm2fb_fix.smem_len = 0x800000;
1622 break;
1623 }
1624 pm2fb_fix.smem_start = pci_resource_start(pdev, 1);
1625
1626 /* Linear frame buffer - request region and map it. */
1627 if (!request_mem_region(pm2fb_fix.smem_start, pm2fb_fix.smem_len,
1628 "pm2fb smem")) {
1629 printk(KERN_WARNING "pm2fb: Can't reserve smem.\n");
1630 goto err_exit_mmio;
1631 }
1632 info->screen_base =
1633 ioremap_wc(pm2fb_fix.smem_start, pm2fb_fix.smem_len);
1634 if (!info->screen_base) {
1635 printk(KERN_WARNING "pm2fb: Can't ioremap smem area.\n");
1636 release_mem_region(pm2fb_fix.smem_start, pm2fb_fix.smem_len);
1637 goto err_exit_mmio;
1638 }
1639
1640 if (!nomtrr)
1641 default_par->wc_cookie = arch_phys_wc_add(pm2fb_fix.smem_start,
1642 pm2fb_fix.smem_len);
1643
1644 info->fbops = &pm2fb_ops;
1645 info->fix = pm2fb_fix;
1646 info->pseudo_palette = default_par->palette;
1647 info->flags = FBINFO_DEFAULT |
1648 FBINFO_HWACCEL_YPAN |
1649 FBINFO_HWACCEL_COPYAREA |
1650 FBINFO_HWACCEL_IMAGEBLIT |
1651 FBINFO_HWACCEL_FILLRECT;
1652
1653 info->pixmap.addr = kmalloc(PM2_PIXMAP_SIZE, GFP_KERNEL);
1654 if (!info->pixmap.addr) {
1655 retval = -ENOMEM;
1656 goto err_exit_pixmap;
1657 }
1658 info->pixmap.size = PM2_PIXMAP_SIZE;
1659 info->pixmap.buf_align = 4;
1660 info->pixmap.scan_align = 4;
1661 info->pixmap.access_align = 32;
1662 info->pixmap.flags = FB_PIXMAP_SYSTEM;
1663
1664 if (noaccel) {
1665 printk(KERN_DEBUG "disabling acceleration\n");
1666 info->flags |= FBINFO_HWACCEL_DISABLED;
1667 info->pixmap.scan_align = 1;
1668 }
1669
1670 if (!mode_option)
1671 mode_option = "640x480@60";
1672
1673 err = fb_find_mode(&info->var, info, mode_option, NULL, 0, NULL, 8);
1674 if (!err || err == 4)
1675 info->var = pm2fb_var;
1676
1677 retval = fb_alloc_cmap(&info->cmap, 256, 0);
1678 if (retval < 0)
1679 goto err_exit_both;
1680
1681 retval = register_framebuffer(info);
1682 if (retval < 0)
1683 goto err_exit_all;
1684
1685 fb_info(info, "%s frame buffer device, memory = %dK\n",
1686 info->fix.id, pm2fb_fix.smem_len / 1024);
1687
1688 /*
1689 * Our driver data
1690 */
1691 pci_set_drvdata(pdev, info);
1692
1693 return 0;
1694
1695 err_exit_all:
1696 fb_dealloc_cmap(&info->cmap);
1697 err_exit_both:
1698 kfree(info->pixmap.addr);
1699 err_exit_pixmap:
1700 iounmap(info->screen_base);
1701 release_mem_region(pm2fb_fix.smem_start, pm2fb_fix.smem_len);
1702 err_exit_mmio:
1703 iounmap(default_par->v_regs);
1704 release_mem_region(pm2fb_fix.mmio_start, pm2fb_fix.mmio_len);
1705 err_exit_neither:
1706 framebuffer_release(info);
1707 return retval;
1708 }
1709
1710 /**
1711 * Device removal.
1712 *
1713 * Release all device resources.
1714 *
1715 * @param pdev PCI device to clean up.
1716 */
1717 static void pm2fb_remove(struct pci_dev *pdev)
1718 {
1719 struct fb_info *info = pci_get_drvdata(pdev);
1720 struct fb_fix_screeninfo *fix = &info->fix;
1721 struct pm2fb_par *par = info->par;
1722
1723 unregister_framebuffer(info);
1724 arch_phys_wc_del(par->wc_cookie);
1725 iounmap(info->screen_base);
1726 release_mem_region(fix->smem_start, fix->smem_len);
1727 iounmap(par->v_regs);
1728 release_mem_region(fix->mmio_start, fix->mmio_len);
1729
1730 fb_dealloc_cmap(&info->cmap);
1731 kfree(info->pixmap.addr);
1732 framebuffer_release(info);
1733 }
1734
1735 static struct pci_device_id pm2fb_id_table[] = {
1736 { PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_TVP4020,
1737 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
1738 { PCI_VENDOR_ID_3DLABS, PCI_DEVICE_ID_3DLABS_PERMEDIA2,
1739 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
1740 { PCI_VENDOR_ID_3DLABS, PCI_DEVICE_ID_3DLABS_PERMEDIA2V,
1741 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
1742 { 0, }
1743 };
1744
1745 static struct pci_driver pm2fb_driver = {
1746 .name = "pm2fb",
1747 .id_table = pm2fb_id_table,
1748 .probe = pm2fb_probe,
1749 .remove = pm2fb_remove,
1750 };
1751
1752 MODULE_DEVICE_TABLE(pci, pm2fb_id_table);
1753
1754
1755 #ifndef MODULE
1756 /**
1757 * Parse user specified options.
1758 *
1759 * This is, comma-separated options following `video=pm2fb:'.
1760 */
1761 static int __init pm2fb_setup(char *options)
1762 {
1763 char *this_opt;
1764
1765 if (!options || !*options)
1766 return 0;
1767
1768 while ((this_opt = strsep(&options, ",")) != NULL) {
1769 if (!*this_opt)
1770 continue;
1771 if (!strcmp(this_opt, "lowhsync"))
1772 lowhsync = 1;
1773 else if (!strcmp(this_opt, "lowvsync"))
1774 lowvsync = 1;
1775 else if (!strncmp(this_opt, "hwcursor=", 9))
1776 hwcursor = simple_strtoul(this_opt + 9, NULL, 0);
1777 else if (!strncmp(this_opt, "nomtrr", 6))
1778 nomtrr = 1;
1779 else if (!strncmp(this_opt, "noaccel", 7))
1780 noaccel = 1;
1781 else
1782 mode_option = this_opt;
1783 }
1784 return 0;
1785 }
1786 #endif
1787
1788
1789 static int __init pm2fb_init(void)
1790 {
1791 #ifndef MODULE
1792 char *option = NULL;
1793
1794 if (fb_get_options("pm2fb", &option))
1795 return -ENODEV;
1796 pm2fb_setup(option);
1797 #endif
1798
1799 return pci_register_driver(&pm2fb_driver);
1800 }
1801
1802 module_init(pm2fb_init);
1803
1804 #ifdef MODULE
1805 /*
1806 * Cleanup
1807 */
1808
1809 static void __exit pm2fb_exit(void)
1810 {
1811 pci_unregister_driver(&pm2fb_driver);
1812 }
1813 #endif
1814
1815 #ifdef MODULE
1816 module_exit(pm2fb_exit);
1817
1818 module_param(mode_option, charp, 0);
1819 MODULE_PARM_DESC(mode_option, "Initial video mode e.g. '648x480-8@60'");
1820 module_param_named(mode, mode_option, charp, 0);
1821 MODULE_PARM_DESC(mode, "Initial video mode e.g. '648x480-8@60' (deprecated)");
1822 module_param(lowhsync, bool, 0);
1823 MODULE_PARM_DESC(lowhsync, "Force horizontal sync low regardless of mode");
1824 module_param(lowvsync, bool, 0);
1825 MODULE_PARM_DESC(lowvsync, "Force vertical sync low regardless of mode");
1826 module_param(noaccel, bool, 0);
1827 MODULE_PARM_DESC(noaccel, "Disable acceleration");
1828 module_param(hwcursor, int, 0644);
1829 MODULE_PARM_DESC(hwcursor, "Enable hardware cursor "
1830 "(1=enable, 0=disable, default=1)");
1831 module_param(nomtrr, bool, 0);
1832 MODULE_PARM_DESC(nomtrr, "Disable MTRR support (0 or 1=disabled) (default=0)");
1833
1834 MODULE_AUTHOR("Jim Hague <jim.hague@acm.org>");
1835 MODULE_DESCRIPTION("Permedia2 framebuffer device driver");
1836 MODULE_LICENSE("GPL");
1837 #endif
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