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 #ifdef CONFIG_MTRR
42 #include <asm/mtrr.h>
43 #endif
44
45 #include <video/permedia2.h>
46 #include <video/cvisionppc.h>
47
48 #if !defined(__LITTLE_ENDIAN) && !defined(__BIG_ENDIAN)
49 #error "The endianness of the target host has not been defined."
50 #endif
51
52 #if !defined(CONFIG_PCI)
53 #error "Only generic PCI cards supported."
54 #endif
55
56 #undef PM2FB_MASTER_DEBUG
57 #ifdef PM2FB_MASTER_DEBUG
58 #define DPRINTK(a, b...) \
59 printk(KERN_DEBUG "pm2fb: %s: " a, __func__ , ## b)
60 #else
61 #define DPRINTK(a, b...)
62 #endif
63
64 #define PM2_PIXMAP_SIZE (1600 * 4)
65
66 /*
67 * Driver data
68 */
69 static int hwcursor = 1;
70 static char *mode_option __devinitdata;
71
72 /*
73 * The XFree GLINT driver will (I think to implement hardware cursor
74 * support on TVP4010 and similar where there is no RAMDAC - see
75 * comment in set_video) always request +ve sync regardless of what
76 * the mode requires. This screws me because I have a Sun
77 * fixed-frequency monitor which absolutely has to have -ve sync. So
78 * these flags allow the user to specify that requests for +ve sync
79 * should be silently turned in -ve sync.
80 */
81 static int lowhsync;
82 static int lowvsync;
83 static int noaccel __devinitdata;
84 /* mtrr option */
85 #ifdef CONFIG_MTRR
86 static int nomtrr __devinitdata;
87 #endif
88
89 /*
90 * The hardware state of the graphics card that isn't part of the
91 * screeninfo.
92 */
93 struct pm2fb_par
94 {
95 pm2type_t type; /* Board type */
96 unsigned char __iomem *v_regs;/* virtual address of p_regs */
97 u32 memclock; /* memclock */
98 u32 video; /* video flags before blanking */
99 u32 mem_config; /* MemConfig reg at probe */
100 u32 mem_control; /* MemControl reg at probe */
101 u32 boot_address; /* BootAddress reg at probe */
102 u32 palette[16];
103 int mtrr_handle;
104 };
105
106 /*
107 * Here we define the default structs fb_fix_screeninfo and fb_var_screeninfo
108 * if we don't use modedb.
109 */
110 static struct fb_fix_screeninfo pm2fb_fix __devinitdata = {
111 .id = "",
112 .type = FB_TYPE_PACKED_PIXELS,
113 .visual = FB_VISUAL_PSEUDOCOLOR,
114 .xpanstep = 1,
115 .ypanstep = 1,
116 .ywrapstep = 0,
117 .accel = FB_ACCEL_3DLABS_PERMEDIA2,
118 };
119
120 /*
121 * Default video mode. In case the modedb doesn't work.
122 */
123 static struct fb_var_screeninfo pm2fb_var __devinitdata = {
124 /* "640x480, 8 bpp @ 60 Hz */
125 .xres = 640,
126 .yres = 480,
127 .xres_virtual = 640,
128 .yres_virtual = 480,
129 .bits_per_pixel = 8,
130 .red = {0, 8, 0},
131 .blue = {0, 8, 0},
132 .green = {0, 8, 0},
133 .activate = FB_ACTIVATE_NOW,
134 .height = -1,
135 .width = -1,
136 .accel_flags = 0,
137 .pixclock = 39721,
138 .left_margin = 40,
139 .right_margin = 24,
140 .upper_margin = 32,
141 .lower_margin = 11,
142 .hsync_len = 96,
143 .vsync_len = 2,
144 .vmode = FB_VMODE_NONINTERLACED
145 };
146
147 /*
148 * Utility functions
149 */
150
pm2_RD(struct pm2fb_par * p,s32 off)151 static inline u32 pm2_RD(struct pm2fb_par *p, s32 off)
152 {
153 return fb_readl(p->v_regs + off);
154 }
155
pm2_WR(struct pm2fb_par * p,s32 off,u32 v)156 static inline void pm2_WR(struct pm2fb_par *p, s32 off, u32 v)
157 {
158 fb_writel(v, p->v_regs + off);
159 }
160
pm2_RDAC_RD(struct pm2fb_par * p,s32 idx)161 static inline u32 pm2_RDAC_RD(struct pm2fb_par *p, s32 idx)
162 {
163 pm2_WR(p, PM2R_RD_PALETTE_WRITE_ADDRESS, idx);
164 mb();
165 return pm2_RD(p, PM2R_RD_INDEXED_DATA);
166 }
167
pm2v_RDAC_RD(struct pm2fb_par * p,s32 idx)168 static inline u32 pm2v_RDAC_RD(struct pm2fb_par *p, s32 idx)
169 {
170 pm2_WR(p, PM2VR_RD_INDEX_LOW, idx & 0xff);
171 mb();
172 return pm2_RD(p, PM2VR_RD_INDEXED_DATA);
173 }
174
pm2_RDAC_WR(struct pm2fb_par * p,s32 idx,u32 v)175 static inline void pm2_RDAC_WR(struct pm2fb_par *p, s32 idx, u32 v)
176 {
177 pm2_WR(p, PM2R_RD_PALETTE_WRITE_ADDRESS, idx);
178 wmb();
179 pm2_WR(p, PM2R_RD_INDEXED_DATA, v);
180 wmb();
181 }
182
pm2v_RDAC_WR(struct pm2fb_par * p,s32 idx,u32 v)183 static inline void pm2v_RDAC_WR(struct pm2fb_par *p, s32 idx, u32 v)
184 {
185 pm2_WR(p, PM2VR_RD_INDEX_LOW, idx & 0xff);
186 wmb();
187 pm2_WR(p, PM2VR_RD_INDEXED_DATA, v);
188 wmb();
189 }
190
191 #ifdef CONFIG_FB_PM2_FIFO_DISCONNECT
192 #define WAIT_FIFO(p, a)
193 #else
WAIT_FIFO(struct pm2fb_par * p,u32 a)194 static inline void WAIT_FIFO(struct pm2fb_par *p, u32 a)
195 {
196 while (pm2_RD(p, PM2R_IN_FIFO_SPACE) < a)
197 cpu_relax();
198 }
199 #endif
200
201 /*
202 * partial products for the supported horizontal resolutions.
203 */
204 #define PACKPP(p0, p1, p2) (((p2) << 6) | ((p1) << 3) | (p0))
205 static const struct {
206 u16 width;
207 u16 pp;
208 } pp_table[] = {
209 { 32, PACKPP(1, 0, 0) }, { 64, PACKPP(1, 1, 0) },
210 { 96, PACKPP(1, 1, 1) }, { 128, PACKPP(2, 1, 1) },
211 { 160, PACKPP(2, 2, 1) }, { 192, PACKPP(2, 2, 2) },
212 { 224, PACKPP(3, 2, 1) }, { 256, PACKPP(3, 2, 2) },
213 { 288, PACKPP(3, 3, 1) }, { 320, PACKPP(3, 3, 2) },
214 { 384, PACKPP(3, 3, 3) }, { 416, PACKPP(4, 3, 1) },
215 { 448, PACKPP(4, 3, 2) }, { 512, PACKPP(4, 3, 3) },
216 { 544, PACKPP(4, 4, 1) }, { 576, PACKPP(4, 4, 2) },
217 { 640, PACKPP(4, 4, 3) }, { 768, PACKPP(4, 4, 4) },
218 { 800, PACKPP(5, 4, 1) }, { 832, PACKPP(5, 4, 2) },
219 { 896, PACKPP(5, 4, 3) }, { 1024, PACKPP(5, 4, 4) },
220 { 1056, PACKPP(5, 5, 1) }, { 1088, PACKPP(5, 5, 2) },
221 { 1152, PACKPP(5, 5, 3) }, { 1280, PACKPP(5, 5, 4) },
222 { 1536, PACKPP(5, 5, 5) }, { 1568, PACKPP(6, 5, 1) },
223 { 1600, PACKPP(6, 5, 2) }, { 1664, PACKPP(6, 5, 3) },
224 { 1792, PACKPP(6, 5, 4) }, { 2048, PACKPP(6, 5, 5) },
225 { 0, 0 } };
226
partprod(u32 xres)227 static u32 partprod(u32 xres)
228 {
229 int i;
230
231 for (i = 0; pp_table[i].width && pp_table[i].width != xres; i++)
232 ;
233 if (pp_table[i].width == 0)
234 DPRINTK("invalid width %u\n", xres);
235 return pp_table[i].pp;
236 }
237
to3264(u32 timing,int bpp,int is64)238 static u32 to3264(u32 timing, int bpp, int is64)
239 {
240 switch (bpp) {
241 case 24:
242 timing *= 3;
243 case 8:
244 timing >>= 1;
245 case 16:
246 timing >>= 1;
247 case 32:
248 break;
249 }
250 if (is64)
251 timing >>= 1;
252 return timing;
253 }
254
pm2_mnp(u32 clk,unsigned char * mm,unsigned char * nn,unsigned char * pp)255 static void pm2_mnp(u32 clk, unsigned char *mm, unsigned char *nn,
256 unsigned char *pp)
257 {
258 unsigned char m;
259 unsigned char n;
260 unsigned char p;
261 u32 f;
262 s32 curr;
263 s32 delta = 100000;
264
265 *mm = *nn = *pp = 0;
266 for (n = 2; n < 15; n++) {
267 for (m = 2; m; m++) {
268 f = PM2_REFERENCE_CLOCK * m / n;
269 if (f >= 150000 && f <= 300000) {
270 for (p = 0; p < 5; p++, f >>= 1) {
271 curr = (clk > f) ? clk - f : f - clk;
272 if (curr < delta) {
273 delta = curr;
274 *mm = m;
275 *nn = n;
276 *pp = p;
277 }
278 }
279 }
280 }
281 }
282 }
283
pm2v_mnp(u32 clk,unsigned char * mm,unsigned char * nn,unsigned char * pp)284 static void pm2v_mnp(u32 clk, unsigned char *mm, unsigned char *nn,
285 unsigned char *pp)
286 {
287 unsigned char m;
288 unsigned char n;
289 unsigned char p;
290 u32 f;
291 s32 delta = 1000;
292
293 *mm = *nn = *pp = 0;
294 for (m = 1; m < 128; m++) {
295 for (n = 2 * m + 1; n; n++) {
296 for (p = 0; p < 2; p++) {
297 f = (PM2_REFERENCE_CLOCK >> (p + 1)) * n / m;
298 if (clk > f - delta && clk < f + delta) {
299 delta = (clk > f) ? clk - f : f - clk;
300 *mm = m;
301 *nn = n;
302 *pp = p;
303 }
304 }
305 }
306 }
307 }
308
clear_palette(struct pm2fb_par * p)309 static void clear_palette(struct pm2fb_par *p)
310 {
311 int i = 256;
312
313 WAIT_FIFO(p, 1);
314 pm2_WR(p, PM2R_RD_PALETTE_WRITE_ADDRESS, 0);
315 wmb();
316 while (i--) {
317 WAIT_FIFO(p, 3);
318 pm2_WR(p, PM2R_RD_PALETTE_DATA, 0);
319 pm2_WR(p, PM2R_RD_PALETTE_DATA, 0);
320 pm2_WR(p, PM2R_RD_PALETTE_DATA, 0);
321 }
322 }
323
reset_card(struct pm2fb_par * p)324 static void reset_card(struct pm2fb_par *p)
325 {
326 if (p->type == PM2_TYPE_PERMEDIA2V)
327 pm2_WR(p, PM2VR_RD_INDEX_HIGH, 0);
328 pm2_WR(p, PM2R_RESET_STATUS, 0);
329 mb();
330 while (pm2_RD(p, PM2R_RESET_STATUS) & PM2F_BEING_RESET)
331 cpu_relax();
332 mb();
333 #ifdef CONFIG_FB_PM2_FIFO_DISCONNECT
334 DPRINTK("FIFO disconnect enabled\n");
335 pm2_WR(p, PM2R_FIFO_DISCON, 1);
336 mb();
337 #endif
338
339 /* Restore stashed memory config information from probe */
340 WAIT_FIFO(p, 3);
341 pm2_WR(p, PM2R_MEM_CONTROL, p->mem_control);
342 pm2_WR(p, PM2R_BOOT_ADDRESS, p->boot_address);
343 wmb();
344 pm2_WR(p, PM2R_MEM_CONFIG, p->mem_config);
345 }
346
reset_config(struct pm2fb_par * p)347 static void reset_config(struct pm2fb_par *p)
348 {
349 WAIT_FIFO(p, 53);
350 pm2_WR(p, PM2R_CHIP_CONFIG, pm2_RD(p, PM2R_CHIP_CONFIG) &
351 ~(PM2F_VGA_ENABLE | PM2F_VGA_FIXED));
352 pm2_WR(p, PM2R_BYPASS_WRITE_MASK, ~(0L));
353 pm2_WR(p, PM2R_FRAMEBUFFER_WRITE_MASK, ~(0L));
354 pm2_WR(p, PM2R_FIFO_CONTROL, 0);
355 pm2_WR(p, PM2R_APERTURE_ONE, 0);
356 pm2_WR(p, PM2R_APERTURE_TWO, 0);
357 pm2_WR(p, PM2R_RASTERIZER_MODE, 0);
358 pm2_WR(p, PM2R_DELTA_MODE, PM2F_DELTA_ORDER_RGB);
359 pm2_WR(p, PM2R_LB_READ_FORMAT, 0);
360 pm2_WR(p, PM2R_LB_WRITE_FORMAT, 0);
361 pm2_WR(p, PM2R_LB_READ_MODE, 0);
362 pm2_WR(p, PM2R_LB_SOURCE_OFFSET, 0);
363 pm2_WR(p, PM2R_FB_SOURCE_OFFSET, 0);
364 pm2_WR(p, PM2R_FB_PIXEL_OFFSET, 0);
365 pm2_WR(p, PM2R_FB_WINDOW_BASE, 0);
366 pm2_WR(p, PM2R_LB_WINDOW_BASE, 0);
367 pm2_WR(p, PM2R_FB_SOFT_WRITE_MASK, ~(0L));
368 pm2_WR(p, PM2R_FB_HARD_WRITE_MASK, ~(0L));
369 pm2_WR(p, PM2R_FB_READ_PIXEL, 0);
370 pm2_WR(p, PM2R_DITHER_MODE, 0);
371 pm2_WR(p, PM2R_AREA_STIPPLE_MODE, 0);
372 pm2_WR(p, PM2R_DEPTH_MODE, 0);
373 pm2_WR(p, PM2R_STENCIL_MODE, 0);
374 pm2_WR(p, PM2R_TEXTURE_ADDRESS_MODE, 0);
375 pm2_WR(p, PM2R_TEXTURE_READ_MODE, 0);
376 pm2_WR(p, PM2R_TEXEL_LUT_MODE, 0);
377 pm2_WR(p, PM2R_YUV_MODE, 0);
378 pm2_WR(p, PM2R_COLOR_DDA_MODE, 0);
379 pm2_WR(p, PM2R_TEXTURE_COLOR_MODE, 0);
380 pm2_WR(p, PM2R_FOG_MODE, 0);
381 pm2_WR(p, PM2R_ALPHA_BLEND_MODE, 0);
382 pm2_WR(p, PM2R_LOGICAL_OP_MODE, 0);
383 pm2_WR(p, PM2R_STATISTICS_MODE, 0);
384 pm2_WR(p, PM2R_SCISSOR_MODE, 0);
385 pm2_WR(p, PM2R_FILTER_MODE, PM2F_SYNCHRONIZATION);
386 pm2_WR(p, PM2R_RD_PIXEL_MASK, 0xff);
387 switch (p->type) {
388 case PM2_TYPE_PERMEDIA2:
389 pm2_RDAC_WR(p, PM2I_RD_MODE_CONTROL, 0); /* no overlay */
390 pm2_RDAC_WR(p, PM2I_RD_CURSOR_CONTROL, 0);
391 pm2_RDAC_WR(p, PM2I_RD_MISC_CONTROL, PM2F_RD_PALETTE_WIDTH_8);
392 pm2_RDAC_WR(p, PM2I_RD_COLOR_KEY_CONTROL, 0);
393 pm2_RDAC_WR(p, PM2I_RD_OVERLAY_KEY, 0);
394 pm2_RDAC_WR(p, PM2I_RD_RED_KEY, 0);
395 pm2_RDAC_WR(p, PM2I_RD_GREEN_KEY, 0);
396 pm2_RDAC_WR(p, PM2I_RD_BLUE_KEY, 0);
397 break;
398 case PM2_TYPE_PERMEDIA2V:
399 pm2v_RDAC_WR(p, PM2VI_RD_MISC_CONTROL, 1); /* 8bit */
400 break;
401 }
402 }
403
set_aperture(struct pm2fb_par * p,u32 depth)404 static void set_aperture(struct pm2fb_par *p, u32 depth)
405 {
406 /*
407 * The hardware is little-endian. When used in big-endian
408 * hosts, the on-chip aperture settings are used where
409 * possible to translate from host to card byte order.
410 */
411 WAIT_FIFO(p, 2);
412 #ifdef __LITTLE_ENDIAN
413 pm2_WR(p, PM2R_APERTURE_ONE, PM2F_APERTURE_STANDARD);
414 #else
415 switch (depth) {
416 case 24: /* RGB->BGR */
417 /*
418 * We can't use the aperture to translate host to
419 * card byte order here, so we switch to BGR mode
420 * in pm2fb_set_par().
421 */
422 case 8: /* B->B */
423 pm2_WR(p, PM2R_APERTURE_ONE, PM2F_APERTURE_STANDARD);
424 break;
425 case 16: /* HL->LH */
426 pm2_WR(p, PM2R_APERTURE_ONE, PM2F_APERTURE_HALFWORDSWAP);
427 break;
428 case 32: /* RGBA->ABGR */
429 pm2_WR(p, PM2R_APERTURE_ONE, PM2F_APERTURE_BYTESWAP);
430 break;
431 }
432 #endif
433
434 /* We don't use aperture two, so this may be superflous */
435 pm2_WR(p, PM2R_APERTURE_TWO, PM2F_APERTURE_STANDARD);
436 }
437
set_color(struct pm2fb_par * p,unsigned char regno,unsigned char r,unsigned char g,unsigned char b)438 static void set_color(struct pm2fb_par *p, unsigned char regno,
439 unsigned char r, unsigned char g, unsigned char b)
440 {
441 WAIT_FIFO(p, 4);
442 pm2_WR(p, PM2R_RD_PALETTE_WRITE_ADDRESS, regno);
443 wmb();
444 pm2_WR(p, PM2R_RD_PALETTE_DATA, r);
445 wmb();
446 pm2_WR(p, PM2R_RD_PALETTE_DATA, g);
447 wmb();
448 pm2_WR(p, PM2R_RD_PALETTE_DATA, b);
449 }
450
set_memclock(struct pm2fb_par * par,u32 clk)451 static void set_memclock(struct pm2fb_par *par, u32 clk)
452 {
453 int i;
454 unsigned char m, n, p;
455
456 switch (par->type) {
457 case PM2_TYPE_PERMEDIA2V:
458 pm2v_mnp(clk/2, &m, &n, &p);
459 WAIT_FIFO(par, 12);
460 pm2_WR(par, PM2VR_RD_INDEX_HIGH, PM2VI_RD_MCLK_CONTROL >> 8);
461 pm2v_RDAC_WR(par, PM2VI_RD_MCLK_CONTROL, 0);
462 pm2v_RDAC_WR(par, PM2VI_RD_MCLK_PRESCALE, m);
463 pm2v_RDAC_WR(par, PM2VI_RD_MCLK_FEEDBACK, n);
464 pm2v_RDAC_WR(par, PM2VI_RD_MCLK_POSTSCALE, p);
465 pm2v_RDAC_WR(par, PM2VI_RD_MCLK_CONTROL, 1);
466 rmb();
467 for (i = 256; i; i--)
468 if (pm2v_RDAC_RD(par, PM2VI_RD_MCLK_CONTROL) & 2)
469 break;
470 pm2_WR(par, PM2VR_RD_INDEX_HIGH, 0);
471 break;
472 case PM2_TYPE_PERMEDIA2:
473 pm2_mnp(clk, &m, &n, &p);
474 WAIT_FIFO(par, 10);
475 pm2_RDAC_WR(par, PM2I_RD_MEMORY_CLOCK_3, 6);
476 pm2_RDAC_WR(par, PM2I_RD_MEMORY_CLOCK_1, m);
477 pm2_RDAC_WR(par, PM2I_RD_MEMORY_CLOCK_2, n);
478 pm2_RDAC_WR(par, PM2I_RD_MEMORY_CLOCK_3, 8|p);
479 pm2_RDAC_RD(par, PM2I_RD_MEMORY_CLOCK_STATUS);
480 rmb();
481 for (i = 256; i; i--)
482 if (pm2_RD(par, PM2R_RD_INDEXED_DATA) & PM2F_PLL_LOCKED)
483 break;
484 break;
485 }
486 }
487
set_pixclock(struct pm2fb_par * par,u32 clk)488 static void set_pixclock(struct pm2fb_par *par, u32 clk)
489 {
490 int i;
491 unsigned char m, n, p;
492
493 switch (par->type) {
494 case PM2_TYPE_PERMEDIA2:
495 pm2_mnp(clk, &m, &n, &p);
496 WAIT_FIFO(par, 10);
497 pm2_RDAC_WR(par, PM2I_RD_PIXEL_CLOCK_A3, 0);
498 pm2_RDAC_WR(par, PM2I_RD_PIXEL_CLOCK_A1, m);
499 pm2_RDAC_WR(par, PM2I_RD_PIXEL_CLOCK_A2, n);
500 pm2_RDAC_WR(par, PM2I_RD_PIXEL_CLOCK_A3, 8|p);
501 pm2_RDAC_RD(par, PM2I_RD_PIXEL_CLOCK_STATUS);
502 rmb();
503 for (i = 256; i; i--)
504 if (pm2_RD(par, PM2R_RD_INDEXED_DATA) & PM2F_PLL_LOCKED)
505 break;
506 break;
507 case PM2_TYPE_PERMEDIA2V:
508 pm2v_mnp(clk/2, &m, &n, &p);
509 WAIT_FIFO(par, 8);
510 pm2_WR(par, PM2VR_RD_INDEX_HIGH, PM2VI_RD_CLK0_PRESCALE >> 8);
511 pm2v_RDAC_WR(par, PM2VI_RD_CLK0_PRESCALE, m);
512 pm2v_RDAC_WR(par, PM2VI_RD_CLK0_FEEDBACK, n);
513 pm2v_RDAC_WR(par, PM2VI_RD_CLK0_POSTSCALE, p);
514 pm2_WR(par, PM2VR_RD_INDEX_HIGH, 0);
515 break;
516 }
517 }
518
set_video(struct pm2fb_par * p,u32 video)519 static void set_video(struct pm2fb_par *p, u32 video)
520 {
521 u32 tmp;
522 u32 vsync = video;
523
524 DPRINTK("video = 0x%x\n", video);
525
526 /*
527 * The hardware cursor needs +vsync to recognise vert retrace.
528 * We may not be using the hardware cursor, but the X Glint
529 * driver may well. So always set +hsync/+vsync and then set
530 * the RAMDAC to invert the sync if necessary.
531 */
532 vsync &= ~(PM2F_HSYNC_MASK | PM2F_VSYNC_MASK);
533 vsync |= PM2F_HSYNC_ACT_HIGH | PM2F_VSYNC_ACT_HIGH;
534
535 WAIT_FIFO(p, 3);
536 pm2_WR(p, PM2R_VIDEO_CONTROL, vsync);
537
538 switch (p->type) {
539 case PM2_TYPE_PERMEDIA2:
540 tmp = PM2F_RD_PALETTE_WIDTH_8;
541 if ((video & PM2F_HSYNC_MASK) == PM2F_HSYNC_ACT_LOW)
542 tmp |= 4; /* invert hsync */
543 if ((video & PM2F_VSYNC_MASK) == PM2F_VSYNC_ACT_LOW)
544 tmp |= 8; /* invert vsync */
545 pm2_RDAC_WR(p, PM2I_RD_MISC_CONTROL, tmp);
546 break;
547 case PM2_TYPE_PERMEDIA2V:
548 tmp = 0;
549 if ((video & PM2F_HSYNC_MASK) == PM2F_HSYNC_ACT_LOW)
550 tmp |= 1; /* invert hsync */
551 if ((video & PM2F_VSYNC_MASK) == PM2F_VSYNC_ACT_LOW)
552 tmp |= 4; /* invert vsync */
553 pm2v_RDAC_WR(p, PM2VI_RD_SYNC_CONTROL, tmp);
554 break;
555 }
556 }
557
558 /*
559 * pm2fb_check_var - Optional function. Validates a var passed in.
560 * @var: frame buffer variable screen structure
561 * @info: frame buffer structure that represents a single frame buffer
562 *
563 * Checks to see if the hardware supports the state requested by
564 * var passed in.
565 *
566 * Returns negative errno on error, or zero on success.
567 */
pm2fb_check_var(struct fb_var_screeninfo * var,struct fb_info * info)568 static int pm2fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
569 {
570 u32 lpitch;
571
572 if (var->bits_per_pixel != 8 && var->bits_per_pixel != 16 &&
573 var->bits_per_pixel != 24 && var->bits_per_pixel != 32) {
574 DPRINTK("depth not supported: %u\n", var->bits_per_pixel);
575 return -EINVAL;
576 }
577
578 if (var->xres != var->xres_virtual) {
579 DPRINTK("virtual x resolution != "
580 "physical x resolution not supported\n");
581 return -EINVAL;
582 }
583
584 if (var->yres > var->yres_virtual) {
585 DPRINTK("virtual y resolution < "
586 "physical y resolution not possible\n");
587 return -EINVAL;
588 }
589
590 /* permedia cannot blit over 2048 */
591 if (var->yres_virtual > 2047) {
592 var->yres_virtual = 2047;
593 }
594
595 if (var->xoffset) {
596 DPRINTK("xoffset not supported\n");
597 return -EINVAL;
598 }
599
600 if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) {
601 DPRINTK("interlace not supported\n");
602 return -EINVAL;
603 }
604
605 var->xres = (var->xres + 15) & ~15; /* could sometimes be 8 */
606 lpitch = var->xres * ((var->bits_per_pixel + 7) >> 3);
607
608 if (var->xres < 320 || var->xres > 1600) {
609 DPRINTK("width not supported: %u\n", var->xres);
610 return -EINVAL;
611 }
612
613 if (var->yres < 200 || var->yres > 1200) {
614 DPRINTK("height not supported: %u\n", var->yres);
615 return -EINVAL;
616 }
617
618 if (lpitch * var->yres_virtual > info->fix.smem_len) {
619 DPRINTK("no memory for screen (%ux%ux%u)\n",
620 var->xres, var->yres_virtual, var->bits_per_pixel);
621 return -EINVAL;
622 }
623
624 if (PICOS2KHZ(var->pixclock) > PM2_MAX_PIXCLOCK) {
625 DPRINTK("pixclock too high (%ldKHz)\n",
626 PICOS2KHZ(var->pixclock));
627 return -EINVAL;
628 }
629
630 var->transp.offset = 0;
631 var->transp.length = 0;
632 switch (var->bits_per_pixel) {
633 case 8:
634 var->red.length = 8;
635 var->green.length = 8;
636 var->blue.length = 8;
637 break;
638 case 16:
639 var->red.offset = 11;
640 var->red.length = 5;
641 var->green.offset = 5;
642 var->green.length = 6;
643 var->blue.offset = 0;
644 var->blue.length = 5;
645 break;
646 case 32:
647 var->transp.offset = 24;
648 var->transp.length = 8;
649 var->red.offset = 16;
650 var->green.offset = 8;
651 var->blue.offset = 0;
652 var->red.length = 8;
653 var->green.length = 8;
654 var->blue.length = 8;
655 break;
656 case 24:
657 #ifdef __BIG_ENDIAN
658 var->red.offset = 0;
659 var->blue.offset = 16;
660 #else
661 var->red.offset = 16;
662 var->blue.offset = 0;
663 #endif
664 var->green.offset = 8;
665 var->red.length = 8;
666 var->green.length = 8;
667 var->blue.length = 8;
668 break;
669 }
670 var->height = -1;
671 var->width = -1;
672
673 var->accel_flags = 0; /* Can't mmap if this is on */
674
675 DPRINTK("Checking graphics mode at %dx%d depth %d\n",
676 var->xres, var->yres, var->bits_per_pixel);
677 return 0;
678 }
679
680 /**
681 * pm2fb_set_par - Alters the hardware state.
682 * @info: frame buffer structure that represents a single frame buffer
683 *
684 * Using the fb_var_screeninfo in fb_info we set the resolution of the
685 * this particular framebuffer.
686 */
pm2fb_set_par(struct fb_info * info)687 static int pm2fb_set_par(struct fb_info *info)
688 {
689 struct pm2fb_par *par = info->par;
690 u32 pixclock;
691 u32 width = (info->var.xres_virtual + 7) & ~7;
692 u32 height = info->var.yres_virtual;
693 u32 depth = (info->var.bits_per_pixel + 7) & ~7;
694 u32 hsstart, hsend, hbend, htotal;
695 u32 vsstart, vsend, vbend, vtotal;
696 u32 stride;
697 u32 base;
698 u32 video = 0;
699 u32 clrmode = PM2F_RD_COLOR_MODE_RGB | PM2F_RD_GUI_ACTIVE;
700 u32 txtmap = 0;
701 u32 pixsize = 0;
702 u32 clrformat = 0;
703 u32 misc = 1; /* 8-bit DAC */
704 u32 xres = (info->var.xres + 31) & ~31;
705 int data64;
706
707 reset_card(par);
708 reset_config(par);
709 clear_palette(par);
710 if (par->memclock)
711 set_memclock(par, par->memclock);
712
713 depth = (depth > 32) ? 32 : depth;
714 data64 = depth > 8 || par->type == PM2_TYPE_PERMEDIA2V;
715
716 pixclock = PICOS2KHZ(info->var.pixclock);
717 if (pixclock > PM2_MAX_PIXCLOCK) {
718 DPRINTK("pixclock too high (%uKHz)\n", pixclock);
719 return -EINVAL;
720 }
721
722 hsstart = to3264(info->var.right_margin, depth, data64);
723 hsend = hsstart + to3264(info->var.hsync_len, depth, data64);
724 hbend = hsend + to3264(info->var.left_margin, depth, data64);
725 htotal = to3264(xres, depth, data64) + hbend - 1;
726 vsstart = (info->var.lower_margin)
727 ? info->var.lower_margin - 1
728 : 0; /* FIXME! */
729 vsend = info->var.lower_margin + info->var.vsync_len - 1;
730 vbend = info->var.lower_margin + info->var.vsync_len +
731 info->var.upper_margin;
732 vtotal = info->var.yres + vbend - 1;
733 stride = to3264(width, depth, 1);
734 base = to3264(info->var.yoffset * xres + info->var.xoffset, depth, 1);
735 if (data64)
736 video |= PM2F_DATA_64_ENABLE;
737
738 if (info->var.sync & FB_SYNC_HOR_HIGH_ACT) {
739 if (lowhsync) {
740 DPRINTK("ignoring +hsync, using -hsync.\n");
741 video |= PM2F_HSYNC_ACT_LOW;
742 } else
743 video |= PM2F_HSYNC_ACT_HIGH;
744 } else
745 video |= PM2F_HSYNC_ACT_LOW;
746
747 if (info->var.sync & FB_SYNC_VERT_HIGH_ACT) {
748 if (lowvsync) {
749 DPRINTK("ignoring +vsync, using -vsync.\n");
750 video |= PM2F_VSYNC_ACT_LOW;
751 } else
752 video |= PM2F_VSYNC_ACT_HIGH;
753 } else
754 video |= PM2F_VSYNC_ACT_LOW;
755
756 if ((info->var.vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) {
757 DPRINTK("interlaced not supported\n");
758 return -EINVAL;
759 }
760 if ((info->var.vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE)
761 video |= PM2F_LINE_DOUBLE;
762 if ((info->var.activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW)
763 video |= PM2F_VIDEO_ENABLE;
764 par->video = video;
765
766 info->fix.visual =
767 (depth == 8) ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
768 info->fix.line_length = info->var.xres * depth / 8;
769 info->cmap.len = 256;
770
771 /*
772 * Settings calculated. Now write them out.
773 */
774 if (par->type == PM2_TYPE_PERMEDIA2V) {
775 WAIT_FIFO(par, 1);
776 pm2_WR(par, PM2VR_RD_INDEX_HIGH, 0);
777 }
778
779 set_aperture(par, depth);
780
781 mb();
782 WAIT_FIFO(par, 19);
783 switch (depth) {
784 case 8:
785 pm2_WR(par, PM2R_FB_READ_PIXEL, 0);
786 clrformat = 0x2e;
787 break;
788 case 16:
789 pm2_WR(par, PM2R_FB_READ_PIXEL, 1);
790 clrmode |= PM2F_RD_TRUECOLOR | PM2F_RD_PIXELFORMAT_RGB565;
791 txtmap = PM2F_TEXTEL_SIZE_16;
792 pixsize = 1;
793 clrformat = 0x70;
794 misc |= 8;
795 break;
796 case 32:
797 pm2_WR(par, PM2R_FB_READ_PIXEL, 2);
798 clrmode |= PM2F_RD_TRUECOLOR | PM2F_RD_PIXELFORMAT_RGBA8888;
799 txtmap = PM2F_TEXTEL_SIZE_32;
800 pixsize = 2;
801 clrformat = 0x20;
802 misc |= 8;
803 break;
804 case 24:
805 pm2_WR(par, PM2R_FB_READ_PIXEL, 4);
806 clrmode |= PM2F_RD_TRUECOLOR | PM2F_RD_PIXELFORMAT_RGB888;
807 txtmap = PM2F_TEXTEL_SIZE_24;
808 pixsize = 4;
809 clrformat = 0x20;
810 misc |= 8;
811 break;
812 }
813 pm2_WR(par, PM2R_FB_WRITE_MODE, PM2F_FB_WRITE_ENABLE);
814 pm2_WR(par, PM2R_FB_READ_MODE, partprod(xres));
815 pm2_WR(par, PM2R_LB_READ_MODE, partprod(xres));
816 pm2_WR(par, PM2R_TEXTURE_MAP_FORMAT, txtmap | partprod(xres));
817 pm2_WR(par, PM2R_H_TOTAL, htotal);
818 pm2_WR(par, PM2R_HS_START, hsstart);
819 pm2_WR(par, PM2R_HS_END, hsend);
820 pm2_WR(par, PM2R_HG_END, hbend);
821 pm2_WR(par, PM2R_HB_END, hbend);
822 pm2_WR(par, PM2R_V_TOTAL, vtotal);
823 pm2_WR(par, PM2R_VS_START, vsstart);
824 pm2_WR(par, PM2R_VS_END, vsend);
825 pm2_WR(par, PM2R_VB_END, vbend);
826 pm2_WR(par, PM2R_SCREEN_STRIDE, stride);
827 wmb();
828 pm2_WR(par, PM2R_WINDOW_ORIGIN, 0);
829 pm2_WR(par, PM2R_SCREEN_SIZE, (height << 16) | width);
830 pm2_WR(par, PM2R_SCISSOR_MODE, PM2F_SCREEN_SCISSOR_ENABLE);
831 wmb();
832 pm2_WR(par, PM2R_SCREEN_BASE, base);
833 wmb();
834 set_video(par, video);
835 WAIT_FIFO(par, 10);
836 switch (par->type) {
837 case PM2_TYPE_PERMEDIA2:
838 pm2_RDAC_WR(par, PM2I_RD_COLOR_MODE, clrmode);
839 pm2_RDAC_WR(par, PM2I_RD_COLOR_KEY_CONTROL,
840 (depth == 8) ? 0 : PM2F_COLOR_KEY_TEST_OFF);
841 break;
842 case PM2_TYPE_PERMEDIA2V:
843 pm2v_RDAC_WR(par, PM2VI_RD_DAC_CONTROL, 0);
844 pm2v_RDAC_WR(par, PM2VI_RD_PIXEL_SIZE, pixsize);
845 pm2v_RDAC_WR(par, PM2VI_RD_COLOR_FORMAT, clrformat);
846 pm2v_RDAC_WR(par, PM2VI_RD_MISC_CONTROL, misc);
847 pm2v_RDAC_WR(par, PM2VI_RD_OVERLAY_KEY, 0);
848 break;
849 }
850 set_pixclock(par, pixclock);
851 DPRINTK("Setting graphics mode at %dx%d depth %d\n",
852 info->var.xres, info->var.yres, info->var.bits_per_pixel);
853 return 0;
854 }
855
856 /**
857 * pm2fb_setcolreg - Sets a color register.
858 * @regno: boolean, 0 copy local, 1 get_user() function
859 * @red: frame buffer colormap structure
860 * @green: The green value which can be up to 16 bits wide
861 * @blue: The blue value which can be up to 16 bits wide.
862 * @transp: If supported the alpha value which can be up to 16 bits wide.
863 * @info: frame buffer info structure
864 *
865 * Set a single color register. The values supplied have a 16 bit
866 * magnitude which needs to be scaled in this function for the hardware.
867 * Pretty much a direct lift from tdfxfb.c.
868 *
869 * Returns negative errno on error, or zero on success.
870 */
pm2fb_setcolreg(unsigned regno,unsigned red,unsigned green,unsigned blue,unsigned transp,struct fb_info * info)871 static int pm2fb_setcolreg(unsigned regno, unsigned red, unsigned green,
872 unsigned blue, unsigned transp,
873 struct fb_info *info)
874 {
875 struct pm2fb_par *par = info->par;
876
877 if (regno >= info->cmap.len) /* no. of hw registers */
878 return -EINVAL;
879 /*
880 * Program hardware... do anything you want with transp
881 */
882
883 /* grayscale works only partially under directcolor */
884 /* grayscale = 0.30*R + 0.59*G + 0.11*B */
885 if (info->var.grayscale)
886 red = green = blue = (red * 77 + green * 151 + blue * 28) >> 8;
887
888 /* Directcolor:
889 * var->{color}.offset contains start of bitfield
890 * var->{color}.length contains length of bitfield
891 * {hardwarespecific} contains width of DAC
892 * cmap[X] is programmed to
893 * (X << red.offset) | (X << green.offset) | (X << blue.offset)
894 * RAMDAC[X] is programmed to (red, green, blue)
895 *
896 * Pseudocolor:
897 * uses offset = 0 && length = DAC register width.
898 * var->{color}.offset is 0
899 * var->{color}.length contains width of DAC
900 * cmap is not used
901 * DAC[X] is programmed to (red, green, blue)
902 * Truecolor:
903 * does not use RAMDAC (usually has 3 of them).
904 * var->{color}.offset contains start of bitfield
905 * var->{color}.length contains length of bitfield
906 * cmap is programmed to
907 * (red << red.offset) | (green << green.offset) |
908 * (blue << blue.offset) | (transp << transp.offset)
909 * RAMDAC does not exist
910 */
911 #define CNVT_TOHW(val, width) ((((val) << (width)) + 0x7FFF -(val)) >> 16)
912 switch (info->fix.visual) {
913 case FB_VISUAL_TRUECOLOR:
914 case FB_VISUAL_PSEUDOCOLOR:
915 red = CNVT_TOHW(red, info->var.red.length);
916 green = CNVT_TOHW(green, info->var.green.length);
917 blue = CNVT_TOHW(blue, info->var.blue.length);
918 transp = CNVT_TOHW(transp, info->var.transp.length);
919 break;
920 case FB_VISUAL_DIRECTCOLOR:
921 /* example here assumes 8 bit DAC. Might be different
922 * for your hardware */
923 red = CNVT_TOHW(red, 8);
924 green = CNVT_TOHW(green, 8);
925 blue = CNVT_TOHW(blue, 8);
926 /* hey, there is bug in transp handling... */
927 transp = CNVT_TOHW(transp, 8);
928 break;
929 }
930 #undef CNVT_TOHW
931 /* Truecolor has hardware independent palette */
932 if (info->fix.visual == FB_VISUAL_TRUECOLOR) {
933 u32 v;
934
935 if (regno >= 16)
936 return -EINVAL;
937
938 v = (red << info->var.red.offset) |
939 (green << info->var.green.offset) |
940 (blue << info->var.blue.offset) |
941 (transp << info->var.transp.offset);
942
943 switch (info->var.bits_per_pixel) {
944 case 8:
945 break;
946 case 16:
947 case 24:
948 case 32:
949 par->palette[regno] = v;
950 break;
951 }
952 return 0;
953 } else if (info->fix.visual == FB_VISUAL_PSEUDOCOLOR)
954 set_color(par, regno, red, green, blue);
955
956 return 0;
957 }
958
959 /**
960 * pm2fb_pan_display - Pans the display.
961 * @var: frame buffer variable screen structure
962 * @info: frame buffer structure that represents a single frame buffer
963 *
964 * Pan (or wrap, depending on the `vmode' field) the display using the
965 * `xoffset' and `yoffset' fields of the `var' structure.
966 * If the values don't fit, return -EINVAL.
967 *
968 * Returns negative errno on error, or zero on success.
969 *
970 */
pm2fb_pan_display(struct fb_var_screeninfo * var,struct fb_info * info)971 static int pm2fb_pan_display(struct fb_var_screeninfo *var,
972 struct fb_info *info)
973 {
974 struct pm2fb_par *p = info->par;
975 u32 base;
976 u32 depth = (var->bits_per_pixel + 7) & ~7;
977 u32 xres = (var->xres + 31) & ~31;
978
979 depth = (depth > 32) ? 32 : depth;
980 base = to3264(var->yoffset * xres + var->xoffset, depth, 1);
981 WAIT_FIFO(p, 1);
982 pm2_WR(p, PM2R_SCREEN_BASE, base);
983 return 0;
984 }
985
986 /**
987 * pm2fb_blank - Blanks the display.
988 * @blank_mode: the blank mode we want.
989 * @info: frame buffer structure that represents a single frame buffer
990 *
991 * Blank the screen if blank_mode != 0, else unblank. Return 0 if
992 * blanking succeeded, != 0 if un-/blanking failed due to e.g. a
993 * video mode which doesn't support it. Implements VESA suspend
994 * and powerdown modes on hardware that supports disabling hsync/vsync:
995 * blank_mode == 2: suspend vsync
996 * blank_mode == 3: suspend hsync
997 * blank_mode == 4: powerdown
998 *
999 * Returns negative errno on error, or zero on success.
1000 *
1001 */
pm2fb_blank(int blank_mode,struct fb_info * info)1002 static int pm2fb_blank(int blank_mode, struct fb_info *info)
1003 {
1004 struct pm2fb_par *par = info->par;
1005 u32 video = par->video;
1006
1007 DPRINTK("blank_mode %d\n", blank_mode);
1008
1009 switch (blank_mode) {
1010 case FB_BLANK_UNBLANK:
1011 /* Screen: On */
1012 video |= PM2F_VIDEO_ENABLE;
1013 break;
1014 case FB_BLANK_NORMAL:
1015 /* Screen: Off */
1016 video &= ~PM2F_VIDEO_ENABLE;
1017 break;
1018 case FB_BLANK_VSYNC_SUSPEND:
1019 /* VSync: Off */
1020 video &= ~(PM2F_VSYNC_MASK | PM2F_BLANK_LOW);
1021 break;
1022 case FB_BLANK_HSYNC_SUSPEND:
1023 /* HSync: Off */
1024 video &= ~(PM2F_HSYNC_MASK | PM2F_BLANK_LOW);
1025 break;
1026 case FB_BLANK_POWERDOWN:
1027 /* HSync: Off, VSync: Off */
1028 video &= ~(PM2F_VSYNC_MASK | PM2F_HSYNC_MASK | PM2F_BLANK_LOW);
1029 break;
1030 }
1031 set_video(par, video);
1032 return 0;
1033 }
1034
pm2fb_sync(struct fb_info * info)1035 static int pm2fb_sync(struct fb_info *info)
1036 {
1037 struct pm2fb_par *par = info->par;
1038
1039 WAIT_FIFO(par, 1);
1040 pm2_WR(par, PM2R_SYNC, 0);
1041 mb();
1042 do {
1043 while (pm2_RD(par, PM2R_OUT_FIFO_WORDS) == 0)
1044 cpu_relax();
1045 } while (pm2_RD(par, PM2R_OUT_FIFO) != PM2TAG(PM2R_SYNC));
1046
1047 return 0;
1048 }
1049
pm2fb_fillrect(struct fb_info * info,const struct fb_fillrect * region)1050 static void pm2fb_fillrect(struct fb_info *info,
1051 const struct fb_fillrect *region)
1052 {
1053 struct pm2fb_par *par = info->par;
1054 struct fb_fillrect modded;
1055 int vxres, vyres;
1056 u32 color = (info->fix.visual == FB_VISUAL_TRUECOLOR) ?
1057 ((u32 *)info->pseudo_palette)[region->color] : region->color;
1058
1059 if (info->state != FBINFO_STATE_RUNNING)
1060 return;
1061 if ((info->flags & FBINFO_HWACCEL_DISABLED) ||
1062 region->rop != ROP_COPY ) {
1063 cfb_fillrect(info, region);
1064 return;
1065 }
1066
1067 vxres = info->var.xres_virtual;
1068 vyres = info->var.yres_virtual;
1069
1070 memcpy(&modded, region, sizeof(struct fb_fillrect));
1071
1072 if (!modded.width || !modded.height ||
1073 modded.dx >= vxres || modded.dy >= vyres)
1074 return;
1075
1076 if (modded.dx + modded.width > vxres)
1077 modded.width = vxres - modded.dx;
1078 if (modded.dy + modded.height > vyres)
1079 modded.height = vyres - modded.dy;
1080
1081 if (info->var.bits_per_pixel == 8)
1082 color |= color << 8;
1083 if (info->var.bits_per_pixel <= 16)
1084 color |= color << 16;
1085
1086 WAIT_FIFO(par, 3);
1087 pm2_WR(par, PM2R_CONFIG, PM2F_CONFIG_FB_WRITE_ENABLE);
1088 pm2_WR(par, PM2R_RECTANGLE_ORIGIN, (modded.dy << 16) | modded.dx);
1089 pm2_WR(par, PM2R_RECTANGLE_SIZE, (modded.height << 16) | modded.width);
1090 if (info->var.bits_per_pixel != 24) {
1091 WAIT_FIFO(par, 2);
1092 pm2_WR(par, PM2R_FB_BLOCK_COLOR, color);
1093 wmb();
1094 pm2_WR(par, PM2R_RENDER,
1095 PM2F_RENDER_RECTANGLE | PM2F_RENDER_FASTFILL);
1096 } else {
1097 WAIT_FIFO(par, 4);
1098 pm2_WR(par, PM2R_COLOR_DDA_MODE, 1);
1099 pm2_WR(par, PM2R_CONSTANT_COLOR, color);
1100 wmb();
1101 pm2_WR(par, PM2R_RENDER,
1102 PM2F_RENDER_RECTANGLE |
1103 PM2F_INCREASE_X | PM2F_INCREASE_Y );
1104 pm2_WR(par, PM2R_COLOR_DDA_MODE, 0);
1105 }
1106 }
1107
pm2fb_copyarea(struct fb_info * info,const struct fb_copyarea * area)1108 static void pm2fb_copyarea(struct fb_info *info,
1109 const struct fb_copyarea *area)
1110 {
1111 struct pm2fb_par *par = info->par;
1112 struct fb_copyarea modded;
1113 u32 vxres, vyres;
1114
1115 if (info->state != FBINFO_STATE_RUNNING)
1116 return;
1117 if (info->flags & FBINFO_HWACCEL_DISABLED) {
1118 cfb_copyarea(info, area);
1119 return;
1120 }
1121
1122 memcpy(&modded, area, sizeof(struct fb_copyarea));
1123
1124 vxres = info->var.xres_virtual;
1125 vyres = info->var.yres_virtual;
1126
1127 if (!modded.width || !modded.height ||
1128 modded.sx >= vxres || modded.sy >= vyres ||
1129 modded.dx >= vxres || modded.dy >= vyres)
1130 return;
1131
1132 if (modded.sx + modded.width > vxres)
1133 modded.width = vxres - modded.sx;
1134 if (modded.dx + modded.width > vxres)
1135 modded.width = vxres - modded.dx;
1136 if (modded.sy + modded.height > vyres)
1137 modded.height = vyres - modded.sy;
1138 if (modded.dy + modded.height > vyres)
1139 modded.height = vyres - modded.dy;
1140
1141 WAIT_FIFO(par, 5);
1142 pm2_WR(par, PM2R_CONFIG, PM2F_CONFIG_FB_WRITE_ENABLE |
1143 PM2F_CONFIG_FB_READ_SOURCE_ENABLE);
1144 pm2_WR(par, PM2R_FB_SOURCE_DELTA,
1145 ((modded.sy - modded.dy) & 0xfff) << 16 |
1146 ((modded.sx - modded.dx) & 0xfff));
1147 pm2_WR(par, PM2R_RECTANGLE_ORIGIN, (modded.dy << 16) | modded.dx);
1148 pm2_WR(par, PM2R_RECTANGLE_SIZE, (modded.height << 16) | modded.width);
1149 wmb();
1150 pm2_WR(par, PM2R_RENDER, PM2F_RENDER_RECTANGLE |
1151 (modded.dx < modded.sx ? PM2F_INCREASE_X : 0) |
1152 (modded.dy < modded.sy ? PM2F_INCREASE_Y : 0));
1153 }
1154
pm2fb_imageblit(struct fb_info * info,const struct fb_image * image)1155 static void pm2fb_imageblit(struct fb_info *info, const struct fb_image *image)
1156 {
1157 struct pm2fb_par *par = info->par;
1158 u32 height = image->height;
1159 u32 fgx, bgx;
1160 const u32 *src = (const u32 *)image->data;
1161 u32 xres = (info->var.xres + 31) & ~31;
1162 int raster_mode = 1; /* invert bits */
1163
1164 #ifdef __LITTLE_ENDIAN
1165 raster_mode |= 3 << 7; /* reverse byte order */
1166 #endif
1167
1168 if (info->state != FBINFO_STATE_RUNNING)
1169 return;
1170 if (info->flags & FBINFO_HWACCEL_DISABLED || image->depth != 1) {
1171 cfb_imageblit(info, image);
1172 return;
1173 }
1174 switch (info->fix.visual) {
1175 case FB_VISUAL_PSEUDOCOLOR:
1176 fgx = image->fg_color;
1177 bgx = image->bg_color;
1178 break;
1179 case FB_VISUAL_TRUECOLOR:
1180 default:
1181 fgx = par->palette[image->fg_color];
1182 bgx = par->palette[image->bg_color];
1183 break;
1184 }
1185 if (info->var.bits_per_pixel == 8) {
1186 fgx |= fgx << 8;
1187 bgx |= bgx << 8;
1188 }
1189 if (info->var.bits_per_pixel <= 16) {
1190 fgx |= fgx << 16;
1191 bgx |= bgx << 16;
1192 }
1193
1194 WAIT_FIFO(par, 13);
1195 pm2_WR(par, PM2R_FB_READ_MODE, partprod(xres));
1196 pm2_WR(par, PM2R_SCISSOR_MIN_XY,
1197 ((image->dy & 0xfff) << 16) | (image->dx & 0x0fff));
1198 pm2_WR(par, PM2R_SCISSOR_MAX_XY,
1199 (((image->dy + image->height) & 0x0fff) << 16) |
1200 ((image->dx + image->width) & 0x0fff));
1201 pm2_WR(par, PM2R_SCISSOR_MODE, 1);
1202 /* GXcopy & UNIT_ENABLE */
1203 pm2_WR(par, PM2R_LOGICAL_OP_MODE, (0x3 << 1) | 1);
1204 pm2_WR(par, PM2R_RECTANGLE_ORIGIN,
1205 ((image->dy & 0xfff) << 16) | (image->dx & 0x0fff));
1206 pm2_WR(par, PM2R_RECTANGLE_SIZE,
1207 ((image->height & 0x0fff) << 16) |
1208 ((image->width) & 0x0fff));
1209 if (info->var.bits_per_pixel == 24) {
1210 pm2_WR(par, PM2R_COLOR_DDA_MODE, 1);
1211 /* clear area */
1212 pm2_WR(par, PM2R_CONSTANT_COLOR, bgx);
1213 pm2_WR(par, PM2R_RENDER,
1214 PM2F_RENDER_RECTANGLE |
1215 PM2F_INCREASE_X | PM2F_INCREASE_Y);
1216 /* BitMapPackEachScanline */
1217 pm2_WR(par, PM2R_RASTERIZER_MODE, raster_mode | (1 << 9));
1218 pm2_WR(par, PM2R_CONSTANT_COLOR, fgx);
1219 pm2_WR(par, PM2R_RENDER,
1220 PM2F_RENDER_RECTANGLE |
1221 PM2F_INCREASE_X | PM2F_INCREASE_Y |
1222 PM2F_RENDER_SYNC_ON_BIT_MASK);
1223 } else {
1224 pm2_WR(par, PM2R_COLOR_DDA_MODE, 0);
1225 /* clear area */
1226 pm2_WR(par, PM2R_FB_BLOCK_COLOR, bgx);
1227 pm2_WR(par, PM2R_RENDER,
1228 PM2F_RENDER_RECTANGLE |
1229 PM2F_RENDER_FASTFILL |
1230 PM2F_INCREASE_X | PM2F_INCREASE_Y);
1231 pm2_WR(par, PM2R_RASTERIZER_MODE, raster_mode);
1232 pm2_WR(par, PM2R_FB_BLOCK_COLOR, fgx);
1233 pm2_WR(par, PM2R_RENDER,
1234 PM2F_RENDER_RECTANGLE |
1235 PM2F_INCREASE_X | PM2F_INCREASE_Y |
1236 PM2F_RENDER_FASTFILL |
1237 PM2F_RENDER_SYNC_ON_BIT_MASK);
1238 }
1239
1240 while (height--) {
1241 int width = ((image->width + 7) >> 3)
1242 + info->pixmap.scan_align - 1;
1243 width >>= 2;
1244 WAIT_FIFO(par, width);
1245 while (width--) {
1246 pm2_WR(par, PM2R_BIT_MASK_PATTERN, *src);
1247 src++;
1248 }
1249 }
1250 WAIT_FIFO(par, 3);
1251 pm2_WR(par, PM2R_RASTERIZER_MODE, 0);
1252 pm2_WR(par, PM2R_COLOR_DDA_MODE, 0);
1253 pm2_WR(par, PM2R_SCISSOR_MODE, 0);
1254 }
1255
1256 /*
1257 * Hardware cursor support.
1258 */
1259 static const u8 cursor_bits_lookup[16] = {
1260 0x00, 0x40, 0x10, 0x50, 0x04, 0x44, 0x14, 0x54,
1261 0x01, 0x41, 0x11, 0x51, 0x05, 0x45, 0x15, 0x55
1262 };
1263
pm2vfb_cursor(struct fb_info * info,struct fb_cursor * cursor)1264 static int pm2vfb_cursor(struct fb_info *info, struct fb_cursor *cursor)
1265 {
1266 struct pm2fb_par *par = info->par;
1267 u8 mode = PM2F_CURSORMODE_TYPE_X;
1268 int x = cursor->image.dx - info->var.xoffset;
1269 int y = cursor->image.dy - info->var.yoffset;
1270
1271 if (cursor->enable)
1272 mode |= PM2F_CURSORMODE_CURSOR_ENABLE;
1273
1274 pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_MODE, mode);
1275
1276 if (!cursor->enable)
1277 x = 2047; /* push it outside display */
1278 pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_X_LOW, x & 0xff);
1279 pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_X_HIGH, (x >> 8) & 0xf);
1280 pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_Y_LOW, y & 0xff);
1281 pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_Y_HIGH, (y >> 8) & 0xf);
1282
1283 /*
1284 * If the cursor is not be changed this means either we want the
1285 * current cursor state (if enable is set) or we want to query what
1286 * we can do with the cursor (if enable is not set)
1287 */
1288 if (!cursor->set)
1289 return 0;
1290
1291 if (cursor->set & FB_CUR_SETHOT) {
1292 pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_X_HOT,
1293 cursor->hot.x & 0x3f);
1294 pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_Y_HOT,
1295 cursor->hot.y & 0x3f);
1296 }
1297
1298 if (cursor->set & FB_CUR_SETCMAP) {
1299 u32 fg_idx = cursor->image.fg_color;
1300 u32 bg_idx = cursor->image.bg_color;
1301 struct fb_cmap cmap = info->cmap;
1302
1303 /* the X11 driver says one should use these color registers */
1304 pm2_WR(par, PM2VR_RD_INDEX_HIGH, PM2VI_RD_CURSOR_PALETTE >> 8);
1305 pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_PALETTE + 0,
1306 cmap.red[bg_idx] >> 8 );
1307 pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_PALETTE + 1,
1308 cmap.green[bg_idx] >> 8 );
1309 pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_PALETTE + 2,
1310 cmap.blue[bg_idx] >> 8 );
1311
1312 pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_PALETTE + 3,
1313 cmap.red[fg_idx] >> 8 );
1314 pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_PALETTE + 4,
1315 cmap.green[fg_idx] >> 8 );
1316 pm2v_RDAC_WR(par, PM2VI_RD_CURSOR_PALETTE + 5,
1317 cmap.blue[fg_idx] >> 8 );
1318 pm2_WR(par, PM2VR_RD_INDEX_HIGH, 0);
1319 }
1320
1321 if (cursor->set & (FB_CUR_SETSHAPE | FB_CUR_SETIMAGE)) {
1322 u8 *bitmap = (u8 *)cursor->image.data;
1323 u8 *mask = (u8 *)cursor->mask;
1324 int i;
1325 int pos = PM2VI_RD_CURSOR_PATTERN;
1326
1327 for (i = 0; i < cursor->image.height; i++) {
1328 int j = (cursor->image.width + 7) >> 3;
1329 int k = 8 - j;
1330
1331 pm2_WR(par, PM2VR_RD_INDEX_HIGH, pos >> 8);
1332
1333 for (; j > 0; j--) {
1334 u8 data = *bitmap ^ *mask;
1335
1336 if (cursor->rop == ROP_COPY)
1337 data = *mask & *bitmap;
1338 /* Upper 4 bits of bitmap data */
1339 pm2v_RDAC_WR(par, pos++,
1340 cursor_bits_lookup[data >> 4] |
1341 (cursor_bits_lookup[*mask >> 4] << 1));
1342 /* Lower 4 bits of bitmap */
1343 pm2v_RDAC_WR(par, pos++,
1344 cursor_bits_lookup[data & 0xf] |
1345 (cursor_bits_lookup[*mask & 0xf] << 1));
1346 bitmap++;
1347 mask++;
1348 }
1349 for (; k > 0; k--) {
1350 pm2v_RDAC_WR(par, pos++, 0);
1351 pm2v_RDAC_WR(par, pos++, 0);
1352 }
1353 }
1354
1355 while (pos < (1024 + PM2VI_RD_CURSOR_PATTERN)) {
1356 pm2_WR(par, PM2VR_RD_INDEX_HIGH, pos >> 8);
1357 pm2v_RDAC_WR(par, pos++, 0);
1358 }
1359
1360 pm2_WR(par, PM2VR_RD_INDEX_HIGH, 0);
1361 }
1362 return 0;
1363 }
1364
pm2fb_cursor(struct fb_info * info,struct fb_cursor * cursor)1365 static int pm2fb_cursor(struct fb_info *info, struct fb_cursor *cursor)
1366 {
1367 struct pm2fb_par *par = info->par;
1368 u8 mode;
1369
1370 if (!hwcursor)
1371 return -EINVAL; /* just to force soft_cursor() call */
1372
1373 /* Too large of a cursor or wrong bpp :-( */
1374 if (cursor->image.width > 64 ||
1375 cursor->image.height > 64 ||
1376 cursor->image.depth > 1)
1377 return -EINVAL;
1378
1379 if (par->type == PM2_TYPE_PERMEDIA2V)
1380 return pm2vfb_cursor(info, cursor);
1381
1382 mode = 0x40;
1383 if (cursor->enable)
1384 mode = 0x43;
1385
1386 pm2_RDAC_WR(par, PM2I_RD_CURSOR_CONTROL, mode);
1387
1388 /*
1389 * If the cursor is not be changed this means either we want the
1390 * current cursor state (if enable is set) or we want to query what
1391 * we can do with the cursor (if enable is not set)
1392 */
1393 if (!cursor->set)
1394 return 0;
1395
1396 if (cursor->set & FB_CUR_SETPOS) {
1397 int x = cursor->image.dx - info->var.xoffset + 63;
1398 int y = cursor->image.dy - info->var.yoffset + 63;
1399
1400 WAIT_FIFO(par, 4);
1401 pm2_WR(par, PM2R_RD_CURSOR_X_LSB, x & 0xff);
1402 pm2_WR(par, PM2R_RD_CURSOR_X_MSB, (x >> 8) & 0x7);
1403 pm2_WR(par, PM2R_RD_CURSOR_Y_LSB, y & 0xff);
1404 pm2_WR(par, PM2R_RD_CURSOR_Y_MSB, (y >> 8) & 0x7);
1405 }
1406
1407 if (cursor->set & FB_CUR_SETCMAP) {
1408 u32 fg_idx = cursor->image.fg_color;
1409 u32 bg_idx = cursor->image.bg_color;
1410
1411 WAIT_FIFO(par, 7);
1412 pm2_WR(par, PM2R_RD_CURSOR_COLOR_ADDRESS, 1);
1413 pm2_WR(par, PM2R_RD_CURSOR_COLOR_DATA,
1414 info->cmap.red[bg_idx] >> 8);
1415 pm2_WR(par, PM2R_RD_CURSOR_COLOR_DATA,
1416 info->cmap.green[bg_idx] >> 8);
1417 pm2_WR(par, PM2R_RD_CURSOR_COLOR_DATA,
1418 info->cmap.blue[bg_idx] >> 8);
1419
1420 pm2_WR(par, PM2R_RD_CURSOR_COLOR_DATA,
1421 info->cmap.red[fg_idx] >> 8);
1422 pm2_WR(par, PM2R_RD_CURSOR_COLOR_DATA,
1423 info->cmap.green[fg_idx] >> 8);
1424 pm2_WR(par, PM2R_RD_CURSOR_COLOR_DATA,
1425 info->cmap.blue[fg_idx] >> 8);
1426 }
1427
1428 if (cursor->set & (FB_CUR_SETSHAPE | FB_CUR_SETIMAGE)) {
1429 u8 *bitmap = (u8 *)cursor->image.data;
1430 u8 *mask = (u8 *)cursor->mask;
1431 int i;
1432
1433 WAIT_FIFO(par, 1);
1434 pm2_WR(par, PM2R_RD_PALETTE_WRITE_ADDRESS, 0);
1435
1436 for (i = 0; i < cursor->image.height; i++) {
1437 int j = (cursor->image.width + 7) >> 3;
1438 int k = 8 - j;
1439
1440 WAIT_FIFO(par, 8);
1441 for (; j > 0; j--) {
1442 u8 data = *bitmap ^ *mask;
1443
1444 if (cursor->rop == ROP_COPY)
1445 data = *mask & *bitmap;
1446 /* bitmap data */
1447 pm2_WR(par, PM2R_RD_CURSOR_DATA, data);
1448 bitmap++;
1449 mask++;
1450 }
1451 for (; k > 0; k--)
1452 pm2_WR(par, PM2R_RD_CURSOR_DATA, 0);
1453 }
1454 for (; i < 64; i++) {
1455 int j = 8;
1456 WAIT_FIFO(par, 8);
1457 while (j-- > 0)
1458 pm2_WR(par, PM2R_RD_CURSOR_DATA, 0);
1459 }
1460
1461 mask = (u8 *)cursor->mask;
1462 for (i = 0; i < cursor->image.height; i++) {
1463 int j = (cursor->image.width + 7) >> 3;
1464 int k = 8 - j;
1465
1466 WAIT_FIFO(par, 8);
1467 for (; j > 0; j--) {
1468 /* mask */
1469 pm2_WR(par, PM2R_RD_CURSOR_DATA, *mask);
1470 mask++;
1471 }
1472 for (; k > 0; k--)
1473 pm2_WR(par, PM2R_RD_CURSOR_DATA, 0);
1474 }
1475 for (; i < 64; i++) {
1476 int j = 8;
1477 WAIT_FIFO(par, 8);
1478 while (j-- > 0)
1479 pm2_WR(par, PM2R_RD_CURSOR_DATA, 0);
1480 }
1481 }
1482 return 0;
1483 }
1484
1485 /* ------------ Hardware Independent Functions ------------ */
1486
1487 /*
1488 * Frame buffer operations
1489 */
1490
1491 static struct fb_ops pm2fb_ops = {
1492 .owner = THIS_MODULE,
1493 .fb_check_var = pm2fb_check_var,
1494 .fb_set_par = pm2fb_set_par,
1495 .fb_setcolreg = pm2fb_setcolreg,
1496 .fb_blank = pm2fb_blank,
1497 .fb_pan_display = pm2fb_pan_display,
1498 .fb_fillrect = pm2fb_fillrect,
1499 .fb_copyarea = pm2fb_copyarea,
1500 .fb_imageblit = pm2fb_imageblit,
1501 .fb_sync = pm2fb_sync,
1502 .fb_cursor = pm2fb_cursor,
1503 };
1504
1505 /*
1506 * PCI stuff
1507 */
1508
1509
1510 /**
1511 * Device initialisation
1512 *
1513 * Initialise and allocate resource for PCI device.
1514 *
1515 * @param pdev PCI device.
1516 * @param id PCI device ID.
1517 */
pm2fb_probe(struct pci_dev * pdev,const struct pci_device_id * id)1518 static int __devinit pm2fb_probe(struct pci_dev *pdev,
1519 const struct pci_device_id *id)
1520 {
1521 struct pm2fb_par *default_par;
1522 struct fb_info *info;
1523 int err;
1524 int retval = -ENXIO;
1525
1526 err = pci_enable_device(pdev);
1527 if (err) {
1528 printk(KERN_WARNING "pm2fb: Can't enable pdev: %d\n", err);
1529 return err;
1530 }
1531
1532 info = framebuffer_alloc(sizeof(struct pm2fb_par), &pdev->dev);
1533 if (!info)
1534 return -ENOMEM;
1535 default_par = info->par;
1536
1537 switch (pdev->device) {
1538 case PCI_DEVICE_ID_TI_TVP4020:
1539 strcpy(pm2fb_fix.id, "TVP4020");
1540 default_par->type = PM2_TYPE_PERMEDIA2;
1541 break;
1542 case PCI_DEVICE_ID_3DLABS_PERMEDIA2:
1543 strcpy(pm2fb_fix.id, "Permedia2");
1544 default_par->type = PM2_TYPE_PERMEDIA2;
1545 break;
1546 case PCI_DEVICE_ID_3DLABS_PERMEDIA2V:
1547 strcpy(pm2fb_fix.id, "Permedia2v");
1548 default_par->type = PM2_TYPE_PERMEDIA2V;
1549 break;
1550 }
1551
1552 pm2fb_fix.mmio_start = pci_resource_start(pdev, 0);
1553 pm2fb_fix.mmio_len = PM2_REGS_SIZE;
1554
1555 #if defined(__BIG_ENDIAN)
1556 /*
1557 * PM2 has a 64k register file, mapped twice in 128k. Lower
1558 * map is little-endian, upper map is big-endian.
1559 */
1560 pm2fb_fix.mmio_start += PM2_REGS_SIZE;
1561 DPRINTK("Adjusting register base for big-endian.\n");
1562 #endif
1563 DPRINTK("Register base at 0x%lx\n", pm2fb_fix.mmio_start);
1564
1565 /* Registers - request region and map it. */
1566 if (!request_mem_region(pm2fb_fix.mmio_start, pm2fb_fix.mmio_len,
1567 "pm2fb regbase")) {
1568 printk(KERN_WARNING "pm2fb: Can't reserve regbase.\n");
1569 goto err_exit_neither;
1570 }
1571 default_par->v_regs =
1572 ioremap_nocache(pm2fb_fix.mmio_start, pm2fb_fix.mmio_len);
1573 if (!default_par->v_regs) {
1574 printk(KERN_WARNING "pm2fb: Can't remap %s register area.\n",
1575 pm2fb_fix.id);
1576 release_mem_region(pm2fb_fix.mmio_start, pm2fb_fix.mmio_len);
1577 goto err_exit_neither;
1578 }
1579
1580 /* Stash away memory register info for use when we reset the board */
1581 default_par->mem_control = pm2_RD(default_par, PM2R_MEM_CONTROL);
1582 default_par->boot_address = pm2_RD(default_par, PM2R_BOOT_ADDRESS);
1583 default_par->mem_config = pm2_RD(default_par, PM2R_MEM_CONFIG);
1584 DPRINTK("MemControl 0x%x BootAddress 0x%x MemConfig 0x%x\n",
1585 default_par->mem_control, default_par->boot_address,
1586 default_par->mem_config);
1587
1588 if (default_par->mem_control == 0 &&
1589 default_par->boot_address == 0x31 &&
1590 default_par->mem_config == 0x259fffff) {
1591 default_par->memclock = CVPPC_MEMCLOCK;
1592 default_par->mem_control = 0;
1593 default_par->boot_address = 0x20;
1594 default_par->mem_config = 0xe6002021;
1595 if (pdev->subsystem_vendor == 0x1048 &&
1596 pdev->subsystem_device == 0x0a31) {
1597 DPRINTK("subsystem_vendor: %04x, "
1598 "subsystem_device: %04x\n",
1599 pdev->subsystem_vendor, pdev->subsystem_device);
1600 DPRINTK("We have not been initialized by VGA BIOS and "
1601 "are running on an Elsa Winner 2000 Office\n");
1602 DPRINTK("Initializing card timings manually...\n");
1603 default_par->memclock = 100000;
1604 }
1605 if (pdev->subsystem_vendor == 0x3d3d &&
1606 pdev->subsystem_device == 0x0100) {
1607 DPRINTK("subsystem_vendor: %04x, "
1608 "subsystem_device: %04x\n",
1609 pdev->subsystem_vendor, pdev->subsystem_device);
1610 DPRINTK("We have not been initialized by VGA BIOS and "
1611 "are running on an 3dlabs reference board\n");
1612 DPRINTK("Initializing card timings manually...\n");
1613 default_par->memclock = 74894;
1614 }
1615 }
1616
1617 /* Now work out how big lfb is going to be. */
1618 switch (default_par->mem_config & PM2F_MEM_CONFIG_RAM_MASK) {
1619 case PM2F_MEM_BANKS_1:
1620 pm2fb_fix.smem_len = 0x200000;
1621 break;
1622 case PM2F_MEM_BANKS_2:
1623 pm2fb_fix.smem_len = 0x400000;
1624 break;
1625 case PM2F_MEM_BANKS_3:
1626 pm2fb_fix.smem_len = 0x600000;
1627 break;
1628 case PM2F_MEM_BANKS_4:
1629 pm2fb_fix.smem_len = 0x800000;
1630 break;
1631 }
1632 pm2fb_fix.smem_start = pci_resource_start(pdev, 1);
1633
1634 /* Linear frame buffer - request region and map it. */
1635 if (!request_mem_region(pm2fb_fix.smem_start, pm2fb_fix.smem_len,
1636 "pm2fb smem")) {
1637 printk(KERN_WARNING "pm2fb: Can't reserve smem.\n");
1638 goto err_exit_mmio;
1639 }
1640 info->screen_base =
1641 ioremap_nocache(pm2fb_fix.smem_start, pm2fb_fix.smem_len);
1642 if (!info->screen_base) {
1643 printk(KERN_WARNING "pm2fb: Can't ioremap smem area.\n");
1644 release_mem_region(pm2fb_fix.smem_start, pm2fb_fix.smem_len);
1645 goto err_exit_mmio;
1646 }
1647
1648 #ifdef CONFIG_MTRR
1649 default_par->mtrr_handle = -1;
1650 if (!nomtrr)
1651 default_par->mtrr_handle =
1652 mtrr_add(pm2fb_fix.smem_start,
1653 pm2fb_fix.smem_len,
1654 MTRR_TYPE_WRCOMB, 1);
1655 #endif
1656
1657 info->fbops = &pm2fb_ops;
1658 info->fix = pm2fb_fix;
1659 info->pseudo_palette = default_par->palette;
1660 info->flags = FBINFO_DEFAULT |
1661 FBINFO_HWACCEL_YPAN |
1662 FBINFO_HWACCEL_COPYAREA |
1663 FBINFO_HWACCEL_IMAGEBLIT |
1664 FBINFO_HWACCEL_FILLRECT;
1665
1666 info->pixmap.addr = kmalloc(PM2_PIXMAP_SIZE, GFP_KERNEL);
1667 if (!info->pixmap.addr) {
1668 retval = -ENOMEM;
1669 goto err_exit_pixmap;
1670 }
1671 info->pixmap.size = PM2_PIXMAP_SIZE;
1672 info->pixmap.buf_align = 4;
1673 info->pixmap.scan_align = 4;
1674 info->pixmap.access_align = 32;
1675 info->pixmap.flags = FB_PIXMAP_SYSTEM;
1676
1677 if (noaccel) {
1678 printk(KERN_DEBUG "disabling acceleration\n");
1679 info->flags |= FBINFO_HWACCEL_DISABLED;
1680 info->pixmap.scan_align = 1;
1681 }
1682
1683 if (!mode_option)
1684 mode_option = "640x480@60";
1685
1686 err = fb_find_mode(&info->var, info, mode_option, NULL, 0, NULL, 8);
1687 if (!err || err == 4)
1688 info->var = pm2fb_var;
1689
1690 retval = fb_alloc_cmap(&info->cmap, 256, 0);
1691 if (retval < 0)
1692 goto err_exit_both;
1693
1694 retval = register_framebuffer(info);
1695 if (retval < 0)
1696 goto err_exit_all;
1697
1698 printk(KERN_INFO "fb%d: %s frame buffer device, memory = %dK.\n",
1699 info->node, info->fix.id, pm2fb_fix.smem_len / 1024);
1700
1701 /*
1702 * Our driver data
1703 */
1704 pci_set_drvdata(pdev, info);
1705
1706 return 0;
1707
1708 err_exit_all:
1709 fb_dealloc_cmap(&info->cmap);
1710 err_exit_both:
1711 kfree(info->pixmap.addr);
1712 err_exit_pixmap:
1713 iounmap(info->screen_base);
1714 release_mem_region(pm2fb_fix.smem_start, pm2fb_fix.smem_len);
1715 err_exit_mmio:
1716 iounmap(default_par->v_regs);
1717 release_mem_region(pm2fb_fix.mmio_start, pm2fb_fix.mmio_len);
1718 err_exit_neither:
1719 framebuffer_release(info);
1720 return retval;
1721 }
1722
1723 /**
1724 * Device removal.
1725 *
1726 * Release all device resources.
1727 *
1728 * @param pdev PCI device to clean up.
1729 */
pm2fb_remove(struct pci_dev * pdev)1730 static void __devexit pm2fb_remove(struct pci_dev *pdev)
1731 {
1732 struct fb_info *info = pci_get_drvdata(pdev);
1733 struct fb_fix_screeninfo *fix = &info->fix;
1734 struct pm2fb_par *par = info->par;
1735
1736 unregister_framebuffer(info);
1737
1738 #ifdef CONFIG_MTRR
1739 if (par->mtrr_handle >= 0)
1740 mtrr_del(par->mtrr_handle, info->fix.smem_start,
1741 info->fix.smem_len);
1742 #endif /* CONFIG_MTRR */
1743 iounmap(info->screen_base);
1744 release_mem_region(fix->smem_start, fix->smem_len);
1745 iounmap(par->v_regs);
1746 release_mem_region(fix->mmio_start, fix->mmio_len);
1747
1748 pci_set_drvdata(pdev, NULL);
1749 fb_dealloc_cmap(&info->cmap);
1750 kfree(info->pixmap.addr);
1751 framebuffer_release(info);
1752 }
1753
1754 static struct pci_device_id pm2fb_id_table[] = {
1755 { PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_TVP4020,
1756 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
1757 { PCI_VENDOR_ID_3DLABS, PCI_DEVICE_ID_3DLABS_PERMEDIA2,
1758 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
1759 { PCI_VENDOR_ID_3DLABS, PCI_DEVICE_ID_3DLABS_PERMEDIA2V,
1760 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
1761 { 0, }
1762 };
1763
1764 static struct pci_driver pm2fb_driver = {
1765 .name = "pm2fb",
1766 .id_table = pm2fb_id_table,
1767 .probe = pm2fb_probe,
1768 .remove = __devexit_p(pm2fb_remove),
1769 };
1770
1771 MODULE_DEVICE_TABLE(pci, pm2fb_id_table);
1772
1773
1774 #ifndef MODULE
1775 /**
1776 * Parse user speficied options.
1777 *
1778 * This is, comma-separated options following `video=pm2fb:'.
1779 */
pm2fb_setup(char * options)1780 static int __init pm2fb_setup(char *options)
1781 {
1782 char *this_opt;
1783
1784 if (!options || !*options)
1785 return 0;
1786
1787 while ((this_opt = strsep(&options, ",")) != NULL) {
1788 if (!*this_opt)
1789 continue;
1790 if (!strcmp(this_opt, "lowhsync"))
1791 lowhsync = 1;
1792 else if (!strcmp(this_opt, "lowvsync"))
1793 lowvsync = 1;
1794 else if (!strncmp(this_opt, "hwcursor=", 9))
1795 hwcursor = simple_strtoul(this_opt + 9, NULL, 0);
1796 #ifdef CONFIG_MTRR
1797 else if (!strncmp(this_opt, "nomtrr", 6))
1798 nomtrr = 1;
1799 #endif
1800 else if (!strncmp(this_opt, "noaccel", 7))
1801 noaccel = 1;
1802 else
1803 mode_option = this_opt;
1804 }
1805 return 0;
1806 }
1807 #endif
1808
1809
pm2fb_init(void)1810 static int __init pm2fb_init(void)
1811 {
1812 #ifndef MODULE
1813 char *option = NULL;
1814
1815 if (fb_get_options("pm2fb", &option))
1816 return -ENODEV;
1817 pm2fb_setup(option);
1818 #endif
1819
1820 return pci_register_driver(&pm2fb_driver);
1821 }
1822
1823 module_init(pm2fb_init);
1824
1825 #ifdef MODULE
1826 /*
1827 * Cleanup
1828 */
1829
pm2fb_exit(void)1830 static void __exit pm2fb_exit(void)
1831 {
1832 pci_unregister_driver(&pm2fb_driver);
1833 }
1834 #endif
1835
1836 #ifdef MODULE
1837 module_exit(pm2fb_exit);
1838
1839 module_param(mode_option, charp, 0);
1840 MODULE_PARM_DESC(mode_option, "Initial video mode e.g. '648x480-8@60'");
1841 module_param_named(mode, mode_option, charp, 0);
1842 MODULE_PARM_DESC(mode, "Initial video mode e.g. '648x480-8@60' (deprecated)");
1843 module_param(lowhsync, bool, 0);
1844 MODULE_PARM_DESC(lowhsync, "Force horizontal sync low regardless of mode");
1845 module_param(lowvsync, bool, 0);
1846 MODULE_PARM_DESC(lowvsync, "Force vertical sync low regardless of mode");
1847 module_param(noaccel, bool, 0);
1848 MODULE_PARM_DESC(noaccel, "Disable acceleration");
1849 module_param(hwcursor, int, 0644);
1850 MODULE_PARM_DESC(hwcursor, "Enable hardware cursor "
1851 "(1=enable, 0=disable, default=1)");
1852 #ifdef CONFIG_MTRR
1853 module_param(nomtrr, bool, 0);
1854 MODULE_PARM_DESC(nomtrr, "Disable MTRR support (0 or 1=disabled) (default=0)");
1855 #endif
1856
1857 MODULE_AUTHOR("Jim Hague <jim.hague@acm.org>");
1858 MODULE_DESCRIPTION("Permedia2 framebuffer device driver");
1859 MODULE_LICENSE("GPL");
1860 #endif
1861