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1da177e4 LT |
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 | * | |
2f7bb99f | 27 | * |
1da177e4 LT |
28 | */ |
29 | ||
1da177e4 LT |
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> | |
1da177e4 LT |
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> | |
d5383fcc KH |
41 | #ifdef CONFIG_MTRR |
42 | #include <asm/mtrr.h> | |
43 | #endif | |
1da177e4 LT |
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...) printk(KERN_DEBUG "pm2fb: %s: " a, __FUNCTION__ , ## b) | |
59 | #else | |
60 | #define DPRINTK(a,b...) | |
61 | #endif | |
62 | ||
91b3a6f4 KH |
63 | #define PM2_PIXMAP_SIZE (1600 * 4) |
64 | ||
1da177e4 | 65 | /* |
2f7bb99f | 66 | * Driver data |
1da177e4 LT |
67 | */ |
68 | static char *mode __devinitdata = NULL; | |
69 | ||
70 | /* | |
71 | * The XFree GLINT driver will (I think to implement hardware cursor | |
72 | * support on TVP4010 and similar where there is no RAMDAC - see | |
73 | * comment in set_video) always request +ve sync regardless of what | |
74 | * the mode requires. This screws me because I have a Sun | |
75 | * fixed-frequency monitor which absolutely has to have -ve sync. So | |
76 | * these flags allow the user to specify that requests for +ve sync | |
77 | * should be silently turned in -ve sync. | |
78 | */ | |
c16c556e DJ |
79 | static int lowhsync; |
80 | static int lowvsync; | |
d5383fcc KH |
81 | static int noaccel __devinitdata; |
82 | /* mtrr option */ | |
83 | #ifdef CONFIG_MTRR | |
84 | static int nomtrr __devinitdata; | |
85 | #endif | |
1da177e4 LT |
86 | |
87 | /* | |
88 | * The hardware state of the graphics card that isn't part of the | |
89 | * screeninfo. | |
90 | */ | |
91 | struct pm2fb_par | |
92 | { | |
93 | pm2type_t type; /* Board type */ | |
1da177e4 | 94 | unsigned char __iomem *v_regs;/* virtual address of p_regs */ |
2f7bb99f | 95 | u32 memclock; /* memclock */ |
1da177e4 LT |
96 | u32 video; /* video flags before blanking */ |
97 | u32 mem_config; /* MemConfig reg at probe */ | |
98 | u32 mem_control; /* MemControl reg at probe */ | |
99 | u32 boot_address; /* BootAddress reg at probe */ | |
2f7bb99f | 100 | u32 palette[16]; |
d5383fcc | 101 | int mtrr_handle; |
1da177e4 LT |
102 | }; |
103 | ||
104 | /* | |
105 | * Here we define the default structs fb_fix_screeninfo and fb_var_screeninfo | |
106 | * if we don't use modedb. | |
107 | */ | |
108 | static struct fb_fix_screeninfo pm2fb_fix __devinitdata = { | |
2f7bb99f | 109 | .id = "", |
1da177e4 LT |
110 | .type = FB_TYPE_PACKED_PIXELS, |
111 | .visual = FB_VISUAL_PSEUDOCOLOR, | |
112 | .xpanstep = 1, | |
113 | .ypanstep = 1, | |
2f7bb99f | 114 | .ywrapstep = 0, |
87a7cc68 | 115 | .accel = FB_ACCEL_3DLABS_PERMEDIA2, |
1da177e4 LT |
116 | }; |
117 | ||
118 | /* | |
119 | * Default video mode. In case the modedb doesn't work. | |
120 | */ | |
121 | static struct fb_var_screeninfo pm2fb_var __devinitdata = { | |
122 | /* "640x480, 8 bpp @ 60 Hz */ | |
2f7bb99f KH |
123 | .xres = 640, |
124 | .yres = 480, | |
125 | .xres_virtual = 640, | |
126 | .yres_virtual = 480, | |
127 | .bits_per_pixel = 8, | |
128 | .red = {0, 8, 0}, | |
129 | .blue = {0, 8, 0}, | |
130 | .green = {0, 8, 0}, | |
131 | .activate = FB_ACTIVATE_NOW, | |
132 | .height = -1, | |
133 | .width = -1, | |
134 | .accel_flags = 0, | |
135 | .pixclock = 39721, | |
136 | .left_margin = 40, | |
137 | .right_margin = 24, | |
138 | .upper_margin = 32, | |
139 | .lower_margin = 11, | |
140 | .hsync_len = 96, | |
141 | .vsync_len = 2, | |
142 | .vmode = FB_VMODE_NONINTERLACED | |
1da177e4 LT |
143 | }; |
144 | ||
145 | /* | |
146 | * Utility functions | |
147 | */ | |
148 | ||
77933d72 | 149 | static inline u32 RD32(unsigned char __iomem *base, s32 off) |
1da177e4 LT |
150 | { |
151 | return fb_readl(base + off); | |
152 | } | |
153 | ||
77933d72 | 154 | static inline void WR32(unsigned char __iomem *base, s32 off, u32 v) |
1da177e4 LT |
155 | { |
156 | fb_writel(v, base + off); | |
157 | } | |
158 | ||
77933d72 | 159 | static inline u32 pm2_RD(struct pm2fb_par* p, s32 off) |
1da177e4 LT |
160 | { |
161 | return RD32(p->v_regs, off); | |
162 | } | |
163 | ||
77933d72 | 164 | static inline void pm2_WR(struct pm2fb_par* p, s32 off, u32 v) |
1da177e4 LT |
165 | { |
166 | WR32(p->v_regs, off, v); | |
167 | } | |
168 | ||
77933d72 | 169 | static inline u32 pm2_RDAC_RD(struct pm2fb_par* p, s32 idx) |
1da177e4 LT |
170 | { |
171 | int index = PM2R_RD_INDEXED_DATA; | |
172 | switch (p->type) { | |
173 | case PM2_TYPE_PERMEDIA2: | |
174 | pm2_WR(p, PM2R_RD_PALETTE_WRITE_ADDRESS, idx); | |
175 | break; | |
176 | case PM2_TYPE_PERMEDIA2V: | |
177 | pm2_WR(p, PM2VR_RD_INDEX_LOW, idx & 0xff); | |
178 | index = PM2VR_RD_INDEXED_DATA; | |
179 | break; | |
2f7bb99f | 180 | } |
1da177e4 LT |
181 | mb(); |
182 | return pm2_RD(p, index); | |
183 | } | |
184 | ||
77933d72 | 185 | static inline void pm2_RDAC_WR(struct pm2fb_par* p, s32 idx, u32 v) |
1da177e4 LT |
186 | { |
187 | int index = PM2R_RD_INDEXED_DATA; | |
188 | switch (p->type) { | |
189 | case PM2_TYPE_PERMEDIA2: | |
190 | pm2_WR(p, PM2R_RD_PALETTE_WRITE_ADDRESS, idx); | |
191 | break; | |
192 | case PM2_TYPE_PERMEDIA2V: | |
193 | pm2_WR(p, PM2VR_RD_INDEX_LOW, idx & 0xff); | |
194 | index = PM2VR_RD_INDEXED_DATA; | |
195 | break; | |
2f7bb99f | 196 | } |
11d1a62c | 197 | wmb(); |
1da177e4 | 198 | pm2_WR(p, index, v); |
11d1a62c | 199 | wmb(); |
1da177e4 LT |
200 | } |
201 | ||
77933d72 | 202 | static inline void pm2v_RDAC_WR(struct pm2fb_par* p, s32 idx, u32 v) |
1da177e4 LT |
203 | { |
204 | pm2_WR(p, PM2VR_RD_INDEX_LOW, idx & 0xff); | |
11d1a62c | 205 | wmb(); |
1da177e4 | 206 | pm2_WR(p, PM2VR_RD_INDEXED_DATA, v); |
11d1a62c | 207 | wmb(); |
1da177e4 LT |
208 | } |
209 | ||
210 | #ifdef CONFIG_FB_PM2_FIFO_DISCONNECT | |
2f7bb99f | 211 | #define WAIT_FIFO(p, a) |
1da177e4 | 212 | #else |
77933d72 | 213 | static inline void WAIT_FIFO(struct pm2fb_par* p, u32 a) |
1da177e4 LT |
214 | { |
215 | while( pm2_RD(p, PM2R_IN_FIFO_SPACE) < a ); | |
216 | mb(); | |
217 | } | |
218 | #endif | |
219 | ||
220 | /* | |
221 | * partial products for the supported horizontal resolutions. | |
222 | */ | |
2f7bb99f | 223 | #define PACKPP(p0, p1, p2) (((p2) << 6) | ((p1) << 3) | (p0)) |
1da177e4 LT |
224 | static const struct { |
225 | u16 width; | |
226 | u16 pp; | |
227 | } pp_table[] = { | |
228 | { 32, PACKPP(1, 0, 0) }, { 64, PACKPP(1, 1, 0) }, | |
229 | { 96, PACKPP(1, 1, 1) }, { 128, PACKPP(2, 1, 1) }, | |
230 | { 160, PACKPP(2, 2, 1) }, { 192, PACKPP(2, 2, 2) }, | |
231 | { 224, PACKPP(3, 2, 1) }, { 256, PACKPP(3, 2, 2) }, | |
232 | { 288, PACKPP(3, 3, 1) }, { 320, PACKPP(3, 3, 2) }, | |
233 | { 384, PACKPP(3, 3, 3) }, { 416, PACKPP(4, 3, 1) }, | |
234 | { 448, PACKPP(4, 3, 2) }, { 512, PACKPP(4, 3, 3) }, | |
235 | { 544, PACKPP(4, 4, 1) }, { 576, PACKPP(4, 4, 2) }, | |
236 | { 640, PACKPP(4, 4, 3) }, { 768, PACKPP(4, 4, 4) }, | |
237 | { 800, PACKPP(5, 4, 1) }, { 832, PACKPP(5, 4, 2) }, | |
238 | { 896, PACKPP(5, 4, 3) }, { 1024, PACKPP(5, 4, 4) }, | |
239 | { 1056, PACKPP(5, 5, 1) }, { 1088, PACKPP(5, 5, 2) }, | |
240 | { 1152, PACKPP(5, 5, 3) }, { 1280, PACKPP(5, 5, 4) }, | |
241 | { 1536, PACKPP(5, 5, 5) }, { 1568, PACKPP(6, 5, 1) }, | |
242 | { 1600, PACKPP(6, 5, 2) }, { 1664, PACKPP(6, 5, 3) }, | |
243 | { 1792, PACKPP(6, 5, 4) }, { 2048, PACKPP(6, 5, 5) }, | |
244 | { 0, 0 } }; | |
245 | ||
246 | static u32 partprod(u32 xres) | |
247 | { | |
248 | int i; | |
249 | ||
250 | for (i = 0; pp_table[i].width && pp_table[i].width != xres; i++) | |
251 | ; | |
252 | if ( pp_table[i].width == 0 ) | |
253 | DPRINTK("invalid width %u\n", xres); | |
254 | return pp_table[i].pp; | |
255 | } | |
256 | ||
257 | static u32 to3264(u32 timing, int bpp, int is64) | |
258 | { | |
259 | switch (bpp) { | |
260 | case 8: | |
261 | timing >>= 2 + is64; | |
262 | break; | |
263 | case 16: | |
264 | timing >>= 1 + is64; | |
265 | break; | |
266 | case 24: | |
267 | timing = (timing * 3) >> (2 + is64); | |
268 | break; | |
269 | case 32: | |
270 | if (is64) | |
271 | timing >>= 1; | |
272 | break; | |
273 | } | |
274 | return timing; | |
275 | } | |
276 | ||
277 | static void pm2_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 curr; | |
285 | s32 delta = 100000; | |
286 | ||
287 | *mm = *nn = *pp = 0; | |
288 | for (n = 2; n < 15; n++) { | |
289 | for (m = 2; m; m++) { | |
290 | f = PM2_REFERENCE_CLOCK * m / n; | |
291 | if (f >= 150000 && f <= 300000) { | |
292 | for ( p = 0; p < 5; p++, f >>= 1) { | |
293 | curr = ( clk > f ) ? clk - f : f - clk; | |
294 | if ( curr < delta ) { | |
295 | delta=curr; | |
296 | *mm=m; | |
297 | *nn=n; | |
298 | *pp=p; | |
299 | } | |
300 | } | |
301 | } | |
302 | } | |
303 | } | |
304 | } | |
305 | ||
306 | static void pm2v_mnp(u32 clk, unsigned char* mm, unsigned char* nn, | |
307 | unsigned char* pp) | |
308 | { | |
309 | unsigned char m; | |
310 | unsigned char n; | |
311 | unsigned char p; | |
312 | u32 f; | |
313 | s32 delta = 1000; | |
314 | ||
315 | *mm = *nn = *pp = 0; | |
d4a96b53 KH |
316 | for ( m = 1; m < 128; m++) { |
317 | for (n = 2 * m + 1; n; n++) { | |
1da177e4 | 318 | for ( p = 0; p < 2; p++) { |
d4a96b53 | 319 | f = ( PM2_REFERENCE_CLOCK >> ( p + 1 )) * n / m; |
1da177e4 LT |
320 | if ( clk > f - delta && clk < f + delta ) { |
321 | delta = ( clk > f ) ? clk - f : f - clk; | |
322 | *mm=m; | |
323 | *nn=n; | |
324 | *pp=p; | |
325 | } | |
326 | } | |
327 | } | |
328 | } | |
329 | } | |
330 | ||
331 | static void clear_palette(struct pm2fb_par* p) { | |
332 | int i=256; | |
333 | ||
334 | WAIT_FIFO(p, 1); | |
335 | pm2_WR(p, PM2R_RD_PALETTE_WRITE_ADDRESS, 0); | |
336 | wmb(); | |
337 | while (i--) { | |
338 | WAIT_FIFO(p, 3); | |
339 | pm2_WR(p, PM2R_RD_PALETTE_DATA, 0); | |
340 | pm2_WR(p, PM2R_RD_PALETTE_DATA, 0); | |
341 | pm2_WR(p, PM2R_RD_PALETTE_DATA, 0); | |
342 | } | |
343 | } | |
344 | ||
345 | static void reset_card(struct pm2fb_par* p) | |
346 | { | |
347 | if (p->type == PM2_TYPE_PERMEDIA2V) | |
348 | pm2_WR(p, PM2VR_RD_INDEX_HIGH, 0); | |
349 | pm2_WR(p, PM2R_RESET_STATUS, 0); | |
350 | mb(); | |
351 | while (pm2_RD(p, PM2R_RESET_STATUS) & PM2F_BEING_RESET) | |
352 | ; | |
353 | mb(); | |
354 | #ifdef CONFIG_FB_PM2_FIFO_DISCONNECT | |
355 | DPRINTK("FIFO disconnect enabled\n"); | |
356 | pm2_WR(p, PM2R_FIFO_DISCON, 1); | |
357 | mb(); | |
358 | #endif | |
359 | ||
360 | /* Restore stashed memory config information from probe */ | |
361 | WAIT_FIFO(p, 3); | |
362 | pm2_WR(p, PM2R_MEM_CONTROL, p->mem_control); | |
363 | pm2_WR(p, PM2R_BOOT_ADDRESS, p->boot_address); | |
364 | wmb(); | |
365 | pm2_WR(p, PM2R_MEM_CONFIG, p->mem_config); | |
366 | } | |
367 | ||
368 | static void reset_config(struct pm2fb_par* p) | |
369 | { | |
370 | WAIT_FIFO(p, 52); | |
2f7bb99f | 371 | pm2_WR(p, PM2R_CHIP_CONFIG, pm2_RD(p, PM2R_CHIP_CONFIG) & |
1da177e4 LT |
372 | ~(PM2F_VGA_ENABLE|PM2F_VGA_FIXED)); |
373 | pm2_WR(p, PM2R_BYPASS_WRITE_MASK, ~(0L)); | |
374 | pm2_WR(p, PM2R_FRAMEBUFFER_WRITE_MASK, ~(0L)); | |
375 | pm2_WR(p, PM2R_FIFO_CONTROL, 0); | |
376 | pm2_WR(p, PM2R_APERTURE_ONE, 0); | |
377 | pm2_WR(p, PM2R_APERTURE_TWO, 0); | |
378 | pm2_WR(p, PM2R_RASTERIZER_MODE, 0); | |
379 | pm2_WR(p, PM2R_DELTA_MODE, PM2F_DELTA_ORDER_RGB); | |
380 | pm2_WR(p, PM2R_LB_READ_FORMAT, 0); | |
2f7bb99f | 381 | pm2_WR(p, PM2R_LB_WRITE_FORMAT, 0); |
1da177e4 LT |
382 | pm2_WR(p, PM2R_LB_READ_MODE, 0); |
383 | pm2_WR(p, PM2R_LB_SOURCE_OFFSET, 0); | |
384 | pm2_WR(p, PM2R_FB_SOURCE_OFFSET, 0); | |
385 | pm2_WR(p, PM2R_FB_PIXEL_OFFSET, 0); | |
386 | pm2_WR(p, PM2R_FB_WINDOW_BASE, 0); | |
387 | pm2_WR(p, PM2R_LB_WINDOW_BASE, 0); | |
388 | pm2_WR(p, PM2R_FB_SOFT_WRITE_MASK, ~(0L)); | |
389 | pm2_WR(p, PM2R_FB_HARD_WRITE_MASK, ~(0L)); | |
390 | pm2_WR(p, PM2R_FB_READ_PIXEL, 0); | |
391 | pm2_WR(p, PM2R_DITHER_MODE, 0); | |
392 | pm2_WR(p, PM2R_AREA_STIPPLE_MODE, 0); | |
393 | pm2_WR(p, PM2R_DEPTH_MODE, 0); | |
394 | pm2_WR(p, PM2R_STENCIL_MODE, 0); | |
395 | pm2_WR(p, PM2R_TEXTURE_ADDRESS_MODE, 0); | |
396 | pm2_WR(p, PM2R_TEXTURE_READ_MODE, 0); | |
397 | pm2_WR(p, PM2R_TEXEL_LUT_MODE, 0); | |
398 | pm2_WR(p, PM2R_YUV_MODE, 0); | |
399 | pm2_WR(p, PM2R_COLOR_DDA_MODE, 0); | |
400 | pm2_WR(p, PM2R_TEXTURE_COLOR_MODE, 0); | |
401 | pm2_WR(p, PM2R_FOG_MODE, 0); | |
402 | pm2_WR(p, PM2R_ALPHA_BLEND_MODE, 0); | |
403 | pm2_WR(p, PM2R_LOGICAL_OP_MODE, 0); | |
404 | pm2_WR(p, PM2R_STATISTICS_MODE, 0); | |
405 | pm2_WR(p, PM2R_SCISSOR_MODE, 0); | |
406 | pm2_WR(p, PM2R_FILTER_MODE, PM2F_SYNCHRONIZATION); | |
407 | switch (p->type) { | |
408 | case PM2_TYPE_PERMEDIA2: | |
409 | pm2_RDAC_WR(p, PM2I_RD_MODE_CONTROL, 0); /* no overlay */ | |
410 | pm2_RDAC_WR(p, PM2I_RD_CURSOR_CONTROL, 0); | |
411 | pm2_RDAC_WR(p, PM2I_RD_MISC_CONTROL, PM2F_RD_PALETTE_WIDTH_8); | |
412 | break; | |
413 | case PM2_TYPE_PERMEDIA2V: | |
414 | pm2v_RDAC_WR(p, PM2VI_RD_MISC_CONTROL, 1); /* 8bit */ | |
415 | break; | |
416 | } | |
417 | pm2_RDAC_WR(p, PM2I_RD_COLOR_KEY_CONTROL, 0); | |
418 | pm2_RDAC_WR(p, PM2I_RD_OVERLAY_KEY, 0); | |
419 | pm2_RDAC_WR(p, PM2I_RD_RED_KEY, 0); | |
420 | pm2_RDAC_WR(p, PM2I_RD_GREEN_KEY, 0); | |
421 | pm2_RDAC_WR(p, PM2I_RD_BLUE_KEY, 0); | |
422 | } | |
423 | ||
424 | static void set_aperture(struct pm2fb_par* p, u32 depth) | |
425 | { | |
426 | /* | |
427 | * The hardware is little-endian. When used in big-endian | |
428 | * hosts, the on-chip aperture settings are used where | |
429 | * possible to translate from host to card byte order. | |
430 | */ | |
431 | WAIT_FIFO(p, 4); | |
432 | #ifdef __LITTLE_ENDIAN | |
433 | pm2_WR(p, PM2R_APERTURE_ONE, PM2F_APERTURE_STANDARD); | |
434 | #else | |
435 | switch (depth) { | |
436 | case 24: /* RGB->BGR */ | |
437 | /* | |
438 | * We can't use the aperture to translate host to | |
439 | * card byte order here, so we switch to BGR mode | |
440 | * in pm2fb_set_par(). | |
441 | */ | |
442 | case 8: /* B->B */ | |
443 | pm2_WR(p, PM2R_APERTURE_ONE, PM2F_APERTURE_STANDARD); | |
444 | break; | |
445 | case 16: /* HL->LH */ | |
446 | pm2_WR(p, PM2R_APERTURE_ONE, PM2F_APERTURE_HALFWORDSWAP); | |
447 | break; | |
448 | case 32: /* RGBA->ABGR */ | |
449 | pm2_WR(p, PM2R_APERTURE_ONE, PM2F_APERTURE_BYTESWAP); | |
450 | break; | |
451 | } | |
452 | #endif | |
453 | ||
454 | // We don't use aperture two, so this may be superflous | |
455 | pm2_WR(p, PM2R_APERTURE_TWO, PM2F_APERTURE_STANDARD); | |
456 | } | |
457 | ||
458 | static void set_color(struct pm2fb_par* p, unsigned char regno, | |
459 | unsigned char r, unsigned char g, unsigned char b) | |
460 | { | |
461 | WAIT_FIFO(p, 4); | |
462 | pm2_WR(p, PM2R_RD_PALETTE_WRITE_ADDRESS, regno); | |
463 | wmb(); | |
464 | pm2_WR(p, PM2R_RD_PALETTE_DATA, r); | |
465 | wmb(); | |
466 | pm2_WR(p, PM2R_RD_PALETTE_DATA, g); | |
467 | wmb(); | |
468 | pm2_WR(p, PM2R_RD_PALETTE_DATA, b); | |
469 | } | |
470 | ||
471 | static void set_memclock(struct pm2fb_par* par, u32 clk) | |
472 | { | |
473 | int i; | |
474 | unsigned char m, n, p; | |
475 | ||
e5d809d7 KH |
476 | switch (par->type) { |
477 | case PM2_TYPE_PERMEDIA2V: | |
478 | pm2v_mnp(clk/2, &m, &n, &p); | |
479 | WAIT_FIFO(par, 8); | |
480 | pm2_WR(par, PM2VR_RD_INDEX_HIGH, PM2VI_RD_MCLK_CONTROL >> 8); | |
481 | pm2v_RDAC_WR(par, PM2VI_RD_MCLK_CONTROL, 0); | |
e5d809d7 KH |
482 | pm2v_RDAC_WR(par, PM2VI_RD_MCLK_PRESCALE, m); |
483 | pm2v_RDAC_WR(par, PM2VI_RD_MCLK_FEEDBACK, n); | |
484 | pm2v_RDAC_WR(par, PM2VI_RD_MCLK_POSTSCALE, p); | |
e5d809d7 KH |
485 | pm2v_RDAC_WR(par, PM2VI_RD_MCLK_CONTROL, 1); |
486 | rmb(); | |
487 | for (i = 256; | |
488 | i && !(pm2_RDAC_RD(par, PM2VI_RD_MCLK_CONTROL) & 2); | |
489 | i--) | |
490 | ; | |
491 | pm2_WR(par, PM2VR_RD_INDEX_HIGH, 0); | |
492 | break; | |
493 | case PM2_TYPE_PERMEDIA2: | |
494 | pm2_mnp(clk, &m, &n, &p); | |
495 | WAIT_FIFO(par, 10); | |
496 | pm2_RDAC_WR(par, PM2I_RD_MEMORY_CLOCK_3, 6); | |
e5d809d7 KH |
497 | pm2_RDAC_WR(par, PM2I_RD_MEMORY_CLOCK_1, m); |
498 | pm2_RDAC_WR(par, PM2I_RD_MEMORY_CLOCK_2, n); | |
e5d809d7 | 499 | pm2_RDAC_WR(par, PM2I_RD_MEMORY_CLOCK_3, 8|p); |
e5d809d7 KH |
500 | pm2_RDAC_RD(par, PM2I_RD_MEMORY_CLOCK_STATUS); |
501 | rmb(); | |
502 | for (i = 256; | |
503 | i && !(pm2_RD(par, PM2R_RD_INDEXED_DATA) & PM2F_PLL_LOCKED); | |
504 | i--) | |
505 | ; | |
506 | break; | |
507 | } | |
1da177e4 LT |
508 | } |
509 | ||
510 | static void set_pixclock(struct pm2fb_par* par, u32 clk) | |
511 | { | |
512 | int i; | |
513 | unsigned char m, n, p; | |
514 | ||
515 | switch (par->type) { | |
516 | case PM2_TYPE_PERMEDIA2: | |
517 | pm2_mnp(clk, &m, &n, &p); | |
518 | WAIT_FIFO(par, 8); | |
519 | pm2_RDAC_WR(par, PM2I_RD_PIXEL_CLOCK_A3, 0); | |
1da177e4 LT |
520 | pm2_RDAC_WR(par, PM2I_RD_PIXEL_CLOCK_A1, m); |
521 | pm2_RDAC_WR(par, PM2I_RD_PIXEL_CLOCK_A2, n); | |
1da177e4 | 522 | pm2_RDAC_WR(par, PM2I_RD_PIXEL_CLOCK_A3, 8|p); |
1da177e4 LT |
523 | pm2_RDAC_RD(par, PM2I_RD_PIXEL_CLOCK_STATUS); |
524 | rmb(); | |
525 | for (i = 256; | |
526 | i && !(pm2_RD(par, PM2R_RD_INDEXED_DATA) & PM2F_PLL_LOCKED); | |
527 | i--) | |
528 | ; | |
529 | break; | |
530 | case PM2_TYPE_PERMEDIA2V: | |
531 | pm2v_mnp(clk/2, &m, &n, &p); | |
532 | WAIT_FIFO(par, 8); | |
533 | pm2_WR(par, PM2VR_RD_INDEX_HIGH, PM2VI_RD_CLK0_PRESCALE >> 8); | |
534 | pm2v_RDAC_WR(par, PM2VI_RD_CLK0_PRESCALE, m); | |
535 | pm2v_RDAC_WR(par, PM2VI_RD_CLK0_FEEDBACK, n); | |
536 | pm2v_RDAC_WR(par, PM2VI_RD_CLK0_POSTSCALE, p); | |
537 | pm2_WR(par, PM2VR_RD_INDEX_HIGH, 0); | |
538 | break; | |
539 | } | |
540 | } | |
541 | ||
542 | static void set_video(struct pm2fb_par* p, u32 video) { | |
543 | u32 tmp; | |
544 | u32 vsync; | |
545 | ||
546 | vsync = video; | |
547 | ||
548 | DPRINTK("video = 0x%x\n", video); | |
2f7bb99f | 549 | |
1da177e4 LT |
550 | /* |
551 | * The hardware cursor needs +vsync to recognise vert retrace. | |
552 | * We may not be using the hardware cursor, but the X Glint | |
553 | * driver may well. So always set +hsync/+vsync and then set | |
554 | * the RAMDAC to invert the sync if necessary. | |
555 | */ | |
556 | vsync &= ~(PM2F_HSYNC_MASK|PM2F_VSYNC_MASK); | |
557 | vsync |= PM2F_HSYNC_ACT_HIGH|PM2F_VSYNC_ACT_HIGH; | |
558 | ||
559 | WAIT_FIFO(p, 5); | |
560 | pm2_WR(p, PM2R_VIDEO_CONTROL, vsync); | |
561 | ||
562 | switch (p->type) { | |
563 | case PM2_TYPE_PERMEDIA2: | |
564 | tmp = PM2F_RD_PALETTE_WIDTH_8; | |
565 | if ((video & PM2F_HSYNC_MASK) == PM2F_HSYNC_ACT_LOW) | |
566 | tmp |= 4; /* invert hsync */ | |
567 | if ((video & PM2F_VSYNC_MASK) == PM2F_VSYNC_ACT_LOW) | |
568 | tmp |= 8; /* invert vsync */ | |
569 | pm2_RDAC_WR(p, PM2I_RD_MISC_CONTROL, tmp); | |
570 | break; | |
571 | case PM2_TYPE_PERMEDIA2V: | |
572 | tmp = 0; | |
573 | if ((video & PM2F_HSYNC_MASK) == PM2F_HSYNC_ACT_LOW) | |
574 | tmp |= 1; /* invert hsync */ | |
575 | if ((video & PM2F_VSYNC_MASK) == PM2F_VSYNC_ACT_LOW) | |
576 | tmp |= 4; /* invert vsync */ | |
577 | pm2v_RDAC_WR(p, PM2VI_RD_SYNC_CONTROL, tmp); | |
578 | pm2v_RDAC_WR(p, PM2VI_RD_MISC_CONTROL, 1); | |
579 | break; | |
580 | } | |
581 | } | |
582 | ||
583 | /* | |
584 | * | |
585 | */ | |
586 | ||
587 | /** | |
2f7bb99f KH |
588 | * pm2fb_check_var - Optional function. Validates a var passed in. |
589 | * @var: frame buffer variable screen structure | |
590 | * @info: frame buffer structure that represents a single frame buffer | |
1da177e4 LT |
591 | * |
592 | * Checks to see if the hardware supports the state requested by | |
593 | * var passed in. | |
594 | * | |
595 | * Returns negative errno on error, or zero on success. | |
596 | */ | |
597 | static int pm2fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) | |
598 | { | |
599 | u32 lpitch; | |
600 | ||
601 | if (var->bits_per_pixel != 8 && var->bits_per_pixel != 16 && | |
602 | var->bits_per_pixel != 24 && var->bits_per_pixel != 32) { | |
603 | DPRINTK("depth not supported: %u\n", var->bits_per_pixel); | |
604 | return -EINVAL; | |
605 | } | |
606 | ||
607 | if (var->xres != var->xres_virtual) { | |
608 | DPRINTK("virtual x resolution != physical x resolution not supported\n"); | |
609 | return -EINVAL; | |
610 | } | |
611 | ||
612 | if (var->yres > var->yres_virtual) { | |
613 | DPRINTK("virtual y resolution < physical y resolution not possible\n"); | |
614 | return -EINVAL; | |
615 | } | |
616 | ||
617 | if (var->xoffset) { | |
618 | DPRINTK("xoffset not supported\n"); | |
619 | return -EINVAL; | |
620 | } | |
621 | ||
622 | if ((var->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) { | |
623 | DPRINTK("interlace not supported\n"); | |
624 | return -EINVAL; | |
625 | } | |
626 | ||
627 | var->xres = (var->xres + 15) & ~15; /* could sometimes be 8 */ | |
628 | lpitch = var->xres * ((var->bits_per_pixel + 7)>>3); | |
2f7bb99f | 629 | |
1da177e4 LT |
630 | if (var->xres < 320 || var->xres > 1600) { |
631 | DPRINTK("width not supported: %u\n", var->xres); | |
632 | return -EINVAL; | |
633 | } | |
2f7bb99f | 634 | |
1da177e4 LT |
635 | if (var->yres < 200 || var->yres > 1200) { |
636 | DPRINTK("height not supported: %u\n", var->yres); | |
637 | return -EINVAL; | |
638 | } | |
2f7bb99f | 639 | |
1da177e4 LT |
640 | if (lpitch * var->yres_virtual > info->fix.smem_len) { |
641 | DPRINTK("no memory for screen (%ux%ux%u)\n", | |
642 | var->xres, var->yres_virtual, var->bits_per_pixel); | |
643 | return -EINVAL; | |
644 | } | |
2f7bb99f | 645 | |
1da177e4 LT |
646 | if (PICOS2KHZ(var->pixclock) > PM2_MAX_PIXCLOCK) { |
647 | DPRINTK("pixclock too high (%ldKHz)\n", PICOS2KHZ(var->pixclock)); | |
648 | return -EINVAL; | |
649 | } | |
650 | ||
76c7d3ff | 651 | var->transp.offset = 0; |
652 | var->transp.length = 0; | |
1da177e4 LT |
653 | switch(var->bits_per_pixel) { |
654 | case 8: | |
655 | var->red.length = var->green.length = var->blue.length = 8; | |
656 | break; | |
657 | case 16: | |
658 | var->red.offset = 11; | |
659 | var->red.length = 5; | |
660 | var->green.offset = 5; | |
661 | var->green.length = 6; | |
662 | var->blue.offset = 0; | |
663 | var->blue.length = 5; | |
664 | break; | |
665 | case 32: | |
666 | var->transp.offset = 24; | |
667 | var->transp.length = 8; | |
668 | var->red.offset = 16; | |
669 | var->green.offset = 8; | |
670 | var->blue.offset = 0; | |
671 | var->red.length = var->green.length = var->blue.length = 8; | |
672 | break; | |
673 | case 24: | |
674 | #ifdef __BIG_ENDIAN | |
675 | var->red.offset = 0; | |
676 | var->blue.offset = 16; | |
677 | #else | |
678 | var->red.offset = 16; | |
679 | var->blue.offset = 0; | |
680 | #endif | |
681 | var->green.offset = 8; | |
682 | var->red.length = var->green.length = var->blue.length = 8; | |
683 | break; | |
684 | } | |
685 | var->height = var->width = -1; | |
2f7bb99f | 686 | |
1da177e4 | 687 | var->accel_flags = 0; /* Can't mmap if this is on */ |
2f7bb99f | 688 | |
1da177e4 LT |
689 | DPRINTK("Checking graphics mode at %dx%d depth %d\n", |
690 | var->xres, var->yres, var->bits_per_pixel); | |
691 | return 0; | |
692 | } | |
693 | ||
694 | /** | |
2f7bb99f KH |
695 | * pm2fb_set_par - Alters the hardware state. |
696 | * @info: frame buffer structure that represents a single frame buffer | |
1da177e4 LT |
697 | * |
698 | * Using the fb_var_screeninfo in fb_info we set the resolution of the | |
699 | * this particular framebuffer. | |
700 | */ | |
701 | static int pm2fb_set_par(struct fb_info *info) | |
702 | { | |
6772a2ee | 703 | struct pm2fb_par *par = info->par; |
1da177e4 LT |
704 | u32 pixclock; |
705 | u32 width, height, depth; | |
706 | u32 hsstart, hsend, hbend, htotal; | |
707 | u32 vsstart, vsend, vbend, vtotal; | |
708 | u32 stride; | |
709 | u32 base; | |
710 | u32 video = 0; | |
711 | u32 clrmode = PM2F_RD_COLOR_MODE_RGB | PM2F_RD_GUI_ACTIVE; | |
712 | u32 txtmap = 0; | |
713 | u32 pixsize = 0; | |
714 | u32 clrformat = 0; | |
715 | u32 xres; | |
716 | int data64; | |
717 | ||
718 | reset_card(par); | |
719 | reset_config(par); | |
720 | clear_palette(par); | |
721 | if ( par->memclock ) | |
722 | set_memclock(par, par->memclock); | |
2f7bb99f | 723 | |
1da177e4 LT |
724 | width = (info->var.xres_virtual + 7) & ~7; |
725 | height = info->var.yres_virtual; | |
726 | depth = (info->var.bits_per_pixel + 7) & ~7; | |
727 | depth = (depth > 32) ? 32 : depth; | |
728 | data64 = depth > 8 || par->type == PM2_TYPE_PERMEDIA2V; | |
729 | ||
730 | xres = (info->var.xres + 31) & ~31; | |
731 | pixclock = PICOS2KHZ(info->var.pixclock); | |
732 | if (pixclock > PM2_MAX_PIXCLOCK) { | |
733 | DPRINTK("pixclock too high (%uKHz)\n", pixclock); | |
734 | return -EINVAL; | |
735 | } | |
2f7bb99f | 736 | |
1da177e4 LT |
737 | hsstart = to3264(info->var.right_margin, depth, data64); |
738 | hsend = hsstart + to3264(info->var.hsync_len, depth, data64); | |
739 | hbend = hsend + to3264(info->var.left_margin, depth, data64); | |
740 | htotal = to3264(xres, depth, data64) + hbend - 1; | |
741 | vsstart = (info->var.lower_margin) | |
742 | ? info->var.lower_margin - 1 | |
743 | : 0; /* FIXME! */ | |
744 | vsend = info->var.lower_margin + info->var.vsync_len - 1; | |
745 | vbend = info->var.lower_margin + info->var.vsync_len + info->var.upper_margin; | |
746 | vtotal = info->var.yres + vbend - 1; | |
747 | stride = to3264(width, depth, 1); | |
748 | base = to3264(info->var.yoffset * xres + info->var.xoffset, depth, 1); | |
749 | if (data64) | |
750 | video |= PM2F_DATA_64_ENABLE; | |
2f7bb99f | 751 | |
1da177e4 LT |
752 | if (info->var.sync & FB_SYNC_HOR_HIGH_ACT) { |
753 | if (lowhsync) { | |
754 | DPRINTK("ignoring +hsync, using -hsync.\n"); | |
755 | video |= PM2F_HSYNC_ACT_LOW; | |
756 | } else | |
757 | video |= PM2F_HSYNC_ACT_HIGH; | |
758 | } | |
759 | else | |
760 | video |= PM2F_HSYNC_ACT_LOW; | |
761 | if (info->var.sync & FB_SYNC_VERT_HIGH_ACT) { | |
762 | if (lowvsync) { | |
763 | DPRINTK("ignoring +vsync, using -vsync.\n"); | |
764 | video |= PM2F_VSYNC_ACT_LOW; | |
765 | } else | |
766 | video |= PM2F_VSYNC_ACT_HIGH; | |
767 | } | |
768 | else | |
769 | video |= PM2F_VSYNC_ACT_LOW; | |
770 | if ((info->var.vmode & FB_VMODE_MASK)==FB_VMODE_INTERLACED) { | |
771 | DPRINTK("interlaced not supported\n"); | |
772 | return -EINVAL; | |
773 | } | |
774 | if ((info->var.vmode & FB_VMODE_MASK)==FB_VMODE_DOUBLE) | |
775 | video |= PM2F_LINE_DOUBLE; | |
776 | if ((info->var.activate & FB_ACTIVATE_MASK)==FB_ACTIVATE_NOW) | |
777 | video |= PM2F_VIDEO_ENABLE; | |
778 | par->video = video; | |
779 | ||
780 | info->fix.visual = | |
781 | (depth == 8) ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR; | |
782 | info->fix.line_length = info->var.xres * depth / 8; | |
783 | info->cmap.len = 256; | |
784 | ||
785 | /* | |
786 | * Settings calculated. Now write them out. | |
787 | */ | |
788 | if (par->type == PM2_TYPE_PERMEDIA2V) { | |
789 | WAIT_FIFO(par, 1); | |
790 | pm2_WR(par, PM2VR_RD_INDEX_HIGH, 0); | |
791 | } | |
2f7bb99f | 792 | |
1da177e4 | 793 | set_aperture(par, depth); |
2f7bb99f | 794 | |
1da177e4 LT |
795 | mb(); |
796 | WAIT_FIFO(par, 19); | |
797 | pm2_RDAC_WR(par, PM2I_RD_COLOR_KEY_CONTROL, | |
798 | ( depth == 8 ) ? 0 : PM2F_COLOR_KEY_TEST_OFF); | |
799 | switch (depth) { | |
800 | case 8: | |
801 | pm2_WR(par, PM2R_FB_READ_PIXEL, 0); | |
802 | clrformat = 0x0e; | |
803 | break; | |
804 | case 16: | |
805 | pm2_WR(par, PM2R_FB_READ_PIXEL, 1); | |
806 | clrmode |= PM2F_RD_TRUECOLOR | PM2F_RD_PIXELFORMAT_RGB565; | |
807 | txtmap = PM2F_TEXTEL_SIZE_16; | |
808 | pixsize = 1; | |
809 | clrformat = 0x70; | |
810 | break; | |
811 | case 32: | |
812 | pm2_WR(par, PM2R_FB_READ_PIXEL, 2); | |
813 | clrmode |= PM2F_RD_TRUECOLOR | PM2F_RD_PIXELFORMAT_RGBA8888; | |
814 | txtmap = PM2F_TEXTEL_SIZE_32; | |
815 | pixsize = 2; | |
816 | clrformat = 0x20; | |
817 | break; | |
818 | case 24: | |
819 | pm2_WR(par, PM2R_FB_READ_PIXEL, 4); | |
820 | clrmode |= PM2F_RD_TRUECOLOR | PM2F_RD_PIXELFORMAT_RGB888; | |
821 | txtmap = PM2F_TEXTEL_SIZE_24; | |
822 | pixsize = 4; | |
823 | clrformat = 0x20; | |
824 | break; | |
825 | } | |
826 | pm2_WR(par, PM2R_FB_WRITE_MODE, PM2F_FB_WRITE_ENABLE); | |
827 | pm2_WR(par, PM2R_FB_READ_MODE, partprod(xres)); | |
828 | pm2_WR(par, PM2R_LB_READ_MODE, partprod(xres)); | |
829 | pm2_WR(par, PM2R_TEXTURE_MAP_FORMAT, txtmap | partprod(xres)); | |
830 | pm2_WR(par, PM2R_H_TOTAL, htotal); | |
831 | pm2_WR(par, PM2R_HS_START, hsstart); | |
832 | pm2_WR(par, PM2R_HS_END, hsend); | |
833 | pm2_WR(par, PM2R_HG_END, hbend); | |
834 | pm2_WR(par, PM2R_HB_END, hbend); | |
835 | pm2_WR(par, PM2R_V_TOTAL, vtotal); | |
836 | pm2_WR(par, PM2R_VS_START, vsstart); | |
837 | pm2_WR(par, PM2R_VS_END, vsend); | |
838 | pm2_WR(par, PM2R_VB_END, vbend); | |
839 | pm2_WR(par, PM2R_SCREEN_STRIDE, stride); | |
840 | wmb(); | |
841 | pm2_WR(par, PM2R_WINDOW_ORIGIN, 0); | |
842 | pm2_WR(par, PM2R_SCREEN_SIZE, (height << 16) | width); | |
843 | pm2_WR(par, PM2R_SCISSOR_MODE, PM2F_SCREEN_SCISSOR_ENABLE); | |
844 | wmb(); | |
845 | pm2_WR(par, PM2R_SCREEN_BASE, base); | |
846 | wmb(); | |
847 | set_video(par, video); | |
848 | WAIT_FIFO(par, 4); | |
849 | switch (par->type) { | |
850 | case PM2_TYPE_PERMEDIA2: | |
851 | pm2_RDAC_WR(par, PM2I_RD_COLOR_MODE, clrmode); | |
852 | break; | |
853 | case PM2_TYPE_PERMEDIA2V: | |
854 | pm2v_RDAC_WR(par, PM2VI_RD_PIXEL_SIZE, pixsize); | |
855 | pm2v_RDAC_WR(par, PM2VI_RD_COLOR_FORMAT, clrformat); | |
856 | break; | |
857 | } | |
858 | set_pixclock(par, pixclock); | |
859 | DPRINTK("Setting graphics mode at %dx%d depth %d\n", | |
860 | info->var.xres, info->var.yres, info->var.bits_per_pixel); | |
2f7bb99f | 861 | return 0; |
1da177e4 LT |
862 | } |
863 | ||
864 | /** | |
2f7bb99f KH |
865 | * pm2fb_setcolreg - Sets a color register. |
866 | * @regno: boolean, 0 copy local, 1 get_user() function | |
867 | * @red: frame buffer colormap structure | |
868 | * @green: The green value which can be up to 16 bits wide | |
1da177e4 | 869 | * @blue: The blue value which can be up to 16 bits wide. |
2f7bb99f KH |
870 | * @transp: If supported the alpha value which can be up to 16 bits wide. |
871 | * @info: frame buffer info structure | |
872 | * | |
873 | * Set a single color register. The values supplied have a 16 bit | |
874 | * magnitude which needs to be scaled in this function for the hardware. | |
1da177e4 | 875 | * Pretty much a direct lift from tdfxfb.c. |
2f7bb99f | 876 | * |
1da177e4 LT |
877 | * Returns negative errno on error, or zero on success. |
878 | */ | |
879 | static int pm2fb_setcolreg(unsigned regno, unsigned red, unsigned green, | |
880 | unsigned blue, unsigned transp, | |
881 | struct fb_info *info) | |
882 | { | |
6772a2ee | 883 | struct pm2fb_par *par = info->par; |
1da177e4 LT |
884 | |
885 | if (regno >= info->cmap.len) /* no. of hw registers */ | |
886 | return 1; | |
887 | /* | |
888 | * Program hardware... do anything you want with transp | |
889 | */ | |
890 | ||
891 | /* grayscale works only partially under directcolor */ | |
892 | if (info->var.grayscale) { | |
893 | /* grayscale = 0.30*R + 0.59*G + 0.11*B */ | |
894 | red = green = blue = (red * 77 + green * 151 + blue * 28) >> 8; | |
895 | } | |
896 | ||
897 | /* Directcolor: | |
898 | * var->{color}.offset contains start of bitfield | |
899 | * var->{color}.length contains length of bitfield | |
900 | * {hardwarespecific} contains width of DAC | |
901 | * cmap[X] is programmed to | |
902 | * (X << red.offset) | (X << green.offset) | (X << blue.offset) | |
903 | * RAMDAC[X] is programmed to (red, green, blue) | |
904 | * | |
905 | * Pseudocolor: | |
906 | * uses offset = 0 && length = DAC register width. | |
907 | * var->{color}.offset is 0 | |
908 | * var->{color}.length contains widht of DAC | |
909 | * cmap is not used | |
910 | * DAC[X] is programmed to (red, green, blue) | |
911 | * Truecolor: | |
912 | * does not use RAMDAC (usually has 3 of them). | |
913 | * var->{color}.offset contains start of bitfield | |
914 | * var->{color}.length contains length of bitfield | |
915 | * cmap is programmed to | |
916 | * (red << red.offset) | (green << green.offset) | | |
917 | * (blue << blue.offset) | (transp << transp.offset) | |
918 | * RAMDAC does not exist | |
919 | */ | |
2f7bb99f | 920 | #define CNVT_TOHW(val, width) ((((val) << (width)) + 0x7FFF -(val)) >> 16) |
1da177e4 LT |
921 | switch (info->fix.visual) { |
922 | case FB_VISUAL_TRUECOLOR: | |
923 | case FB_VISUAL_PSEUDOCOLOR: | |
924 | red = CNVT_TOHW(red, info->var.red.length); | |
925 | green = CNVT_TOHW(green, info->var.green.length); | |
926 | blue = CNVT_TOHW(blue, info->var.blue.length); | |
927 | transp = CNVT_TOHW(transp, info->var.transp.length); | |
928 | break; | |
929 | case FB_VISUAL_DIRECTCOLOR: | |
2f7bb99f KH |
930 | /* example here assumes 8 bit DAC. Might be different |
931 | * for your hardware */ | |
932 | red = CNVT_TOHW(red, 8); | |
1da177e4 LT |
933 | green = CNVT_TOHW(green, 8); |
934 | blue = CNVT_TOHW(blue, 8); | |
935 | /* hey, there is bug in transp handling... */ | |
936 | transp = CNVT_TOHW(transp, 8); | |
937 | break; | |
938 | } | |
939 | #undef CNVT_TOHW | |
940 | /* Truecolor has hardware independent palette */ | |
941 | if (info->fix.visual == FB_VISUAL_TRUECOLOR) { | |
942 | u32 v; | |
943 | ||
944 | if (regno >= 16) | |
945 | return 1; | |
946 | ||
947 | v = (red << info->var.red.offset) | | |
948 | (green << info->var.green.offset) | | |
949 | (blue << info->var.blue.offset) | | |
950 | (transp << info->var.transp.offset); | |
951 | ||
952 | switch (info->var.bits_per_pixel) { | |
953 | case 8: | |
2f7bb99f KH |
954 | break; |
955 | case 16: | |
1da177e4 | 956 | case 24: |
2f7bb99f KH |
957 | case 32: |
958 | par->palette[regno] = v; | |
1da177e4 LT |
959 | break; |
960 | } | |
961 | return 0; | |
962 | } | |
963 | else if (info->fix.visual == FB_VISUAL_PSEUDOCOLOR) | |
964 | set_color(par, regno, red, green, blue); | |
965 | ||
966 | return 0; | |
967 | } | |
968 | ||
969 | /** | |
2f7bb99f KH |
970 | * pm2fb_pan_display - Pans the display. |
971 | * @var: frame buffer variable screen structure | |
972 | * @info: frame buffer structure that represents a single frame buffer | |
1da177e4 LT |
973 | * |
974 | * Pan (or wrap, depending on the `vmode' field) the display using the | |
2f7bb99f KH |
975 | * `xoffset' and `yoffset' fields of the `var' structure. |
976 | * If the values don't fit, return -EINVAL. | |
1da177e4 | 977 | * |
2f7bb99f | 978 | * Returns negative errno on error, or zero on success. |
1da177e4 LT |
979 | * |
980 | */ | |
981 | static int pm2fb_pan_display(struct fb_var_screeninfo *var, | |
982 | struct fb_info *info) | |
983 | { | |
6772a2ee | 984 | struct pm2fb_par *p = info->par; |
1da177e4 LT |
985 | u32 base; |
986 | u32 depth; | |
987 | u32 xres; | |
988 | ||
989 | xres = (var->xres + 31) & ~31; | |
990 | depth = (var->bits_per_pixel + 7) & ~7; | |
991 | depth = (depth > 32) ? 32 : depth; | |
992 | base = to3264(var->yoffset * xres + var->xoffset, depth, 1); | |
993 | WAIT_FIFO(p, 1); | |
2f7bb99f | 994 | pm2_WR(p, PM2R_SCREEN_BASE, base); |
1da177e4 LT |
995 | return 0; |
996 | } | |
997 | ||
998 | /** | |
2f7bb99f KH |
999 | * pm2fb_blank - Blanks the display. |
1000 | * @blank_mode: the blank mode we want. | |
1001 | * @info: frame buffer structure that represents a single frame buffer | |
1da177e4 | 1002 | * |
2f7bb99f KH |
1003 | * Blank the screen if blank_mode != 0, else unblank. Return 0 if |
1004 | * blanking succeeded, != 0 if un-/blanking failed due to e.g. a | |
1005 | * video mode which doesn't support it. Implements VESA suspend | |
1006 | * and powerdown modes on hardware that supports disabling hsync/vsync: | |
1007 | * blank_mode == 2: suspend vsync | |
1008 | * blank_mode == 3: suspend hsync | |
1009 | * blank_mode == 4: powerdown | |
1da177e4 | 1010 | * |
2f7bb99f | 1011 | * Returns negative errno on error, or zero on success. |
1da177e4 LT |
1012 | * |
1013 | */ | |
1014 | static int pm2fb_blank(int blank_mode, struct fb_info *info) | |
1015 | { | |
6772a2ee | 1016 | struct pm2fb_par *par = info->par; |
1da177e4 LT |
1017 | u32 video = par->video; |
1018 | ||
1019 | DPRINTK("blank_mode %d\n", blank_mode); | |
1020 | ||
1021 | switch (blank_mode) { | |
1022 | case FB_BLANK_UNBLANK: | |
1023 | /* Screen: On */ | |
1024 | video |= PM2F_VIDEO_ENABLE; | |
1025 | break; | |
1026 | case FB_BLANK_NORMAL: | |
1027 | /* Screen: Off */ | |
1028 | video &= ~PM2F_VIDEO_ENABLE; | |
1029 | break; | |
1030 | case FB_BLANK_VSYNC_SUSPEND: | |
1031 | /* VSync: Off */ | |
1032 | video &= ~(PM2F_VSYNC_MASK | PM2F_BLANK_LOW ); | |
1033 | break; | |
1034 | case FB_BLANK_HSYNC_SUSPEND: | |
1035 | /* HSync: Off */ | |
1036 | video &= ~(PM2F_HSYNC_MASK | PM2F_BLANK_LOW ); | |
1037 | break; | |
1038 | case FB_BLANK_POWERDOWN: | |
1039 | /* HSync: Off, VSync: Off */ | |
1040 | video &= ~(PM2F_VSYNC_MASK | PM2F_HSYNC_MASK| PM2F_BLANK_LOW); | |
1041 | break; | |
1042 | } | |
1043 | set_video(par, video); | |
1044 | return 0; | |
1045 | } | |
1046 | ||
03b9ae4b AD |
1047 | static int pm2fb_sync(struct fb_info *info) |
1048 | { | |
1049 | struct pm2fb_par *par = info->par; | |
1050 | ||
1051 | WAIT_FIFO(par, 1); | |
1052 | pm2_WR(par, PM2R_SYNC, 0); | |
1053 | mb(); | |
1054 | do { | |
1055 | while (pm2_RD(par, PM2R_OUT_FIFO_WORDS) == 0) | |
1056 | udelay(10); | |
1057 | rmb(); | |
1058 | } while (pm2_RD(par, PM2R_OUT_FIFO) != PM2TAG(PM2R_SYNC)); | |
1059 | ||
1060 | return 0; | |
1061 | } | |
1062 | ||
87a7cc68 KH |
1063 | /* |
1064 | * block operation. copy=0: rectangle fill, copy=1: rectangle copy. | |
1065 | */ | |
03b9ae4b | 1066 | static void pm2fb_block_op(struct fb_info* info, int copy, |
87a7cc68 KH |
1067 | s32 xsrc, s32 ysrc, |
1068 | s32 x, s32 y, s32 w, s32 h, | |
1069 | u32 color) { | |
03b9ae4b | 1070 | struct pm2fb_par *par = info->par; |
87a7cc68 KH |
1071 | |
1072 | if (!w || !h) | |
1073 | return; | |
11d1a62c | 1074 | WAIT_FIFO(par, 5); |
87a7cc68 KH |
1075 | pm2_WR(par, PM2R_CONFIG, PM2F_CONFIG_FB_WRITE_ENABLE | |
1076 | PM2F_CONFIG_FB_READ_SOURCE_ENABLE); | |
87a7cc68 KH |
1077 | if (copy) |
1078 | pm2_WR(par, PM2R_FB_SOURCE_DELTA, | |
1079 | ((ysrc-y) & 0xfff) << 16 | ((xsrc-x) & 0xfff)); | |
1080 | else | |
1081 | pm2_WR(par, PM2R_FB_BLOCK_COLOR, color); | |
1082 | pm2_WR(par, PM2R_RECTANGLE_ORIGIN, (y << 16) | x); | |
1083 | pm2_WR(par, PM2R_RECTANGLE_SIZE, (h << 16) | w); | |
1084 | wmb(); | |
2f7bb99f | 1085 | pm2_WR(par, PM2R_RENDER, PM2F_RENDER_RECTANGLE | |
87a7cc68 KH |
1086 | (x<xsrc ? PM2F_INCREASE_X : 0) | |
1087 | (y<ysrc ? PM2F_INCREASE_Y : 0) | | |
1088 | (copy ? 0 : PM2F_RENDER_FASTFILL)); | |
87a7cc68 KH |
1089 | } |
1090 | ||
1091 | static void pm2fb_fillrect (struct fb_info *info, | |
1092 | const struct fb_fillrect *region) | |
1093 | { | |
87a7cc68 KH |
1094 | struct fb_fillrect modded; |
1095 | int vxres, vyres; | |
1096 | u32 color = (info->fix.visual == FB_VISUAL_TRUECOLOR) ? | |
1097 | ((u32*)info->pseudo_palette)[region->color] : region->color; | |
1098 | ||
1099 | if (info->state != FBINFO_STATE_RUNNING) | |
1100 | return; | |
1101 | if ((info->flags & FBINFO_HWACCEL_DISABLED) || | |
1102 | region->rop != ROP_COPY ) { | |
1103 | cfb_fillrect(info, region); | |
1104 | return; | |
1105 | } | |
1106 | ||
1107 | vxres = info->var.xres_virtual; | |
1108 | vyres = info->var.yres_virtual; | |
1109 | ||
1110 | memcpy(&modded, region, sizeof(struct fb_fillrect)); | |
1111 | ||
1112 | if(!modded.width || !modded.height || | |
1113 | modded.dx >= vxres || modded.dy >= vyres) | |
1114 | return; | |
1115 | ||
1116 | if(modded.dx + modded.width > vxres) | |
1117 | modded.width = vxres - modded.dx; | |
1118 | if(modded.dy + modded.height > vyres) | |
1119 | modded.height = vyres - modded.dy; | |
1120 | ||
1121 | if(info->var.bits_per_pixel == 8) | |
1122 | color |= color << 8; | |
1123 | if(info->var.bits_per_pixel <= 16) | |
1124 | color |= color << 16; | |
1125 | ||
1126 | if(info->var.bits_per_pixel != 24) | |
03b9ae4b | 1127 | pm2fb_block_op(info, 0, 0, 0, |
87a7cc68 KH |
1128 | modded.dx, modded.dy, |
1129 | modded.width, modded.height, color); | |
1130 | else | |
1131 | cfb_fillrect(info, region); | |
1132 | } | |
1133 | ||
1134 | static void pm2fb_copyarea(struct fb_info *info, | |
1135 | const struct fb_copyarea *area) | |
1136 | { | |
87a7cc68 KH |
1137 | struct fb_copyarea modded; |
1138 | u32 vxres, vyres; | |
1139 | ||
1140 | if (info->state != FBINFO_STATE_RUNNING) | |
1141 | return; | |
1142 | if (info->flags & FBINFO_HWACCEL_DISABLED) { | |
1143 | cfb_copyarea(info, area); | |
1144 | return; | |
1145 | } | |
1146 | ||
1147 | memcpy(&modded, area, sizeof(struct fb_copyarea)); | |
1148 | ||
1149 | vxres = info->var.xres_virtual; | |
1150 | vyres = info->var.yres_virtual; | |
1151 | ||
1152 | if(!modded.width || !modded.height || | |
1153 | modded.sx >= vxres || modded.sy >= vyres || | |
1154 | modded.dx >= vxres || modded.dy >= vyres) | |
1155 | return; | |
1156 | ||
1157 | if(modded.sx + modded.width > vxres) | |
1158 | modded.width = vxres - modded.sx; | |
1159 | if(modded.dx + modded.width > vxres) | |
1160 | modded.width = vxres - modded.dx; | |
1161 | if(modded.sy + modded.height > vyres) | |
1162 | modded.height = vyres - modded.sy; | |
1163 | if(modded.dy + modded.height > vyres) | |
1164 | modded.height = vyres - modded.dy; | |
1165 | ||
03b9ae4b | 1166 | pm2fb_block_op(info, 1, modded.sx, modded.sy, |
87a7cc68 KH |
1167 | modded.dx, modded.dy, |
1168 | modded.width, modded.height, 0); | |
1169 | } | |
1170 | ||
91b3a6f4 KH |
1171 | static void pm2fb_imageblit(struct fb_info *info, const struct fb_image *image) |
1172 | { | |
1173 | struct pm2fb_par *par = info->par; | |
1174 | u32 height = image->height; | |
1175 | u32 fgx, bgx; | |
1176 | const u32 *src = (const u32*)image->data; | |
1177 | u32 xres = (info->var.xres + 31) & ~31; | |
1178 | ||
1179 | if (info->state != FBINFO_STATE_RUNNING) | |
1180 | return; | |
1181 | if (info->flags & FBINFO_HWACCEL_DISABLED || image->depth != 1) { | |
1182 | cfb_imageblit(info, image); | |
1183 | return; | |
1184 | } | |
1185 | switch (info->fix.visual) { | |
1186 | case FB_VISUAL_PSEUDOCOLOR: | |
1187 | fgx = image->fg_color; | |
1188 | bgx = image->bg_color; | |
1189 | break; | |
1190 | case FB_VISUAL_TRUECOLOR: | |
1191 | default: | |
1192 | fgx = par->palette[image->fg_color]; | |
1193 | bgx = par->palette[image->bg_color]; | |
1194 | break; | |
1195 | } | |
1196 | if (info->var.bits_per_pixel == 8) { | |
1197 | fgx |= fgx << 8; | |
1198 | bgx |= bgx << 8; | |
1199 | } | |
1200 | if (info->var.bits_per_pixel <= 16) { | |
1201 | fgx |= fgx << 16; | |
1202 | bgx |= bgx << 16; | |
1203 | } | |
1204 | ||
1205 | WAIT_FIFO(par, 13); | |
1206 | pm2_WR(par, PM2R_FB_READ_MODE, partprod(xres)); | |
1207 | pm2_WR(par, PM2R_SCISSOR_MIN_XY, | |
1208 | ((image->dy & 0xfff) << 16) | (image->dx & 0x0fff)); | |
1209 | pm2_WR(par, PM2R_SCISSOR_MAX_XY, | |
1210 | (((image->dy + image->height) & 0x0fff) << 16) | | |
1211 | ((image->dx + image->width) & 0x0fff)); | |
1212 | pm2_WR(par, PM2R_SCISSOR_MODE, 1); | |
1213 | /* GXcopy & UNIT_ENABLE */ | |
1214 | pm2_WR(par, PM2R_LOGICAL_OP_MODE, (0x3 << 1) | 1 ); | |
1215 | pm2_WR(par, PM2R_RECTANGLE_ORIGIN, | |
1216 | ((image->dy & 0xfff) << 16) | (image->dx & 0x0fff)); | |
1217 | pm2_WR(par, PM2R_RECTANGLE_SIZE, | |
1218 | ((image->height & 0x0fff) << 16) | | |
1219 | ((image->width) & 0x0fff)); | |
1220 | if (info->var.bits_per_pixel == 24) { | |
1221 | pm2_WR(par, PM2R_COLOR_DDA_MODE, 1); | |
1222 | /* clear area */ | |
1223 | pm2_WR(par, PM2R_CONSTANT_COLOR, bgx); | |
1224 | pm2_WR(par, PM2R_RENDER, | |
1225 | PM2F_RENDER_RECTANGLE | | |
1226 | PM2F_INCREASE_X | PM2F_INCREASE_Y ); | |
1227 | /* BitMapPackEachScanline & invert bits and byte order*/ | |
1228 | /* force background */ | |
1229 | pm2_WR(par, PM2R_RASTERIZER_MODE, (1<<9) | 1 | (3<<7)); | |
1230 | pm2_WR(par, PM2R_CONSTANT_COLOR, fgx); | |
1231 | pm2_WR(par, PM2R_RENDER, | |
1232 | PM2F_RENDER_RECTANGLE | | |
1233 | PM2F_INCREASE_X | PM2F_INCREASE_Y | | |
1234 | PM2F_RENDER_SYNC_ON_BIT_MASK); | |
1235 | } else { | |
1236 | pm2_WR(par, PM2R_COLOR_DDA_MODE, 0); | |
1237 | /* clear area */ | |
1238 | pm2_WR(par, PM2R_FB_BLOCK_COLOR, bgx); | |
1239 | pm2_WR(par, PM2R_RENDER, | |
1240 | PM2F_RENDER_RECTANGLE | | |
1241 | PM2F_RENDER_FASTFILL | | |
1242 | PM2F_INCREASE_X | PM2F_INCREASE_Y ); | |
1243 | /* invert bits and byte order*/ | |
1244 | pm2_WR(par, PM2R_RASTERIZER_MODE, 1 | (3<<7) ); | |
1245 | pm2_WR(par, PM2R_FB_BLOCK_COLOR, fgx); | |
1246 | pm2_WR(par, PM2R_RENDER, | |
1247 | PM2F_RENDER_RECTANGLE | | |
1248 | PM2F_INCREASE_X | PM2F_INCREASE_Y | | |
1249 | PM2F_RENDER_FASTFILL | | |
1250 | PM2F_RENDER_SYNC_ON_BIT_MASK); | |
1251 | } | |
1252 | ||
1253 | while (height--) { | |
1254 | int width = ((image->width + 7) >> 3) | |
1255 | + info->pixmap.scan_align - 1; | |
1256 | width >>= 2; | |
1257 | WAIT_FIFO(par, width); | |
1258 | while (width--) { | |
1259 | pm2_WR(par, PM2R_BIT_MASK_PATTERN, *src); | |
1260 | src++; | |
1261 | } | |
1262 | } | |
1263 | WAIT_FIFO(par, 3); | |
1264 | pm2_WR(par, PM2R_RASTERIZER_MODE, 0); | |
1265 | pm2_WR(par, PM2R_COLOR_DDA_MODE, 0); | |
1266 | pm2_WR(par, PM2R_SCISSOR_MODE, 0); | |
1267 | } | |
1268 | ||
1da177e4 LT |
1269 | /* ------------ Hardware Independent Functions ------------ */ |
1270 | ||
1271 | /* | |
1272 | * Frame buffer operations | |
1273 | */ | |
1274 | ||
1275 | static struct fb_ops pm2fb_ops = { | |
1276 | .owner = THIS_MODULE, | |
1277 | .fb_check_var = pm2fb_check_var, | |
1278 | .fb_set_par = pm2fb_set_par, | |
1279 | .fb_setcolreg = pm2fb_setcolreg, | |
1280 | .fb_blank = pm2fb_blank, | |
1281 | .fb_pan_display = pm2fb_pan_display, | |
87a7cc68 KH |
1282 | .fb_fillrect = pm2fb_fillrect, |
1283 | .fb_copyarea = pm2fb_copyarea, | |
91b3a6f4 | 1284 | .fb_imageblit = pm2fb_imageblit, |
03b9ae4b | 1285 | .fb_sync = pm2fb_sync, |
1da177e4 LT |
1286 | }; |
1287 | ||
1288 | /* | |
1289 | * PCI stuff | |
1290 | */ | |
1291 | ||
1292 | ||
1293 | /** | |
1294 | * Device initialisation | |
1295 | * | |
1296 | * Initialise and allocate resource for PCI device. | |
1297 | * | |
1298 | * @param pdev PCI device. | |
1299 | * @param id PCI device ID. | |
1300 | */ | |
1301 | static int __devinit pm2fb_probe(struct pci_dev *pdev, | |
1302 | const struct pci_device_id *id) | |
1303 | { | |
1304 | struct pm2fb_par *default_par; | |
1305 | struct fb_info *info; | |
6772a2ee | 1306 | int err, err_retval = -ENXIO; |
1da177e4 LT |
1307 | |
1308 | err = pci_enable_device(pdev); | |
1309 | if ( err ) { | |
1310 | printk(KERN_WARNING "pm2fb: Can't enable pdev: %d\n", err); | |
1311 | return err; | |
1312 | } | |
1313 | ||
6772a2ee | 1314 | info = framebuffer_alloc(sizeof(struct pm2fb_par), &pdev->dev); |
1da177e4 LT |
1315 | if ( !info ) |
1316 | return -ENOMEM; | |
6772a2ee | 1317 | default_par = info->par; |
1da177e4 LT |
1318 | |
1319 | switch (pdev->device) { | |
1320 | case PCI_DEVICE_ID_TI_TVP4020: | |
1321 | strcpy(pm2fb_fix.id, "TVP4020"); | |
1322 | default_par->type = PM2_TYPE_PERMEDIA2; | |
1323 | break; | |
1324 | case PCI_DEVICE_ID_3DLABS_PERMEDIA2: | |
1325 | strcpy(pm2fb_fix.id, "Permedia2"); | |
1326 | default_par->type = PM2_TYPE_PERMEDIA2; | |
1327 | break; | |
1328 | case PCI_DEVICE_ID_3DLABS_PERMEDIA2V: | |
1329 | strcpy(pm2fb_fix.id, "Permedia2v"); | |
1330 | default_par->type = PM2_TYPE_PERMEDIA2V; | |
1331 | break; | |
1332 | } | |
1333 | ||
1334 | pm2fb_fix.mmio_start = pci_resource_start(pdev, 0); | |
1335 | pm2fb_fix.mmio_len = PM2_REGS_SIZE; | |
1336 | ||
1337 | #if defined(__BIG_ENDIAN) | |
1338 | /* | |
1339 | * PM2 has a 64k register file, mapped twice in 128k. Lower | |
1340 | * map is little-endian, upper map is big-endian. | |
1341 | */ | |
1342 | pm2fb_fix.mmio_start += PM2_REGS_SIZE; | |
1343 | DPRINTK("Adjusting register base for big-endian.\n"); | |
1344 | #endif | |
1345 | DPRINTK("Register base at 0x%lx\n", pm2fb_fix.mmio_start); | |
2f7bb99f | 1346 | |
1da177e4 LT |
1347 | /* Registers - request region and map it. */ |
1348 | if ( !request_mem_region(pm2fb_fix.mmio_start, pm2fb_fix.mmio_len, | |
1349 | "pm2fb regbase") ) { | |
1350 | printk(KERN_WARNING "pm2fb: Can't reserve regbase.\n"); | |
1351 | goto err_exit_neither; | |
1352 | } | |
1353 | default_par->v_regs = | |
1354 | ioremap_nocache(pm2fb_fix.mmio_start, pm2fb_fix.mmio_len); | |
1355 | if ( !default_par->v_regs ) { | |
1356 | printk(KERN_WARNING "pm2fb: Can't remap %s register area.\n", | |
1357 | pm2fb_fix.id); | |
1358 | release_mem_region(pm2fb_fix.mmio_start, pm2fb_fix.mmio_len); | |
1359 | goto err_exit_neither; | |
1360 | } | |
1361 | ||
1362 | /* Stash away memory register info for use when we reset the board */ | |
1363 | default_par->mem_control = pm2_RD(default_par, PM2R_MEM_CONTROL); | |
1364 | default_par->boot_address = pm2_RD(default_par, PM2R_BOOT_ADDRESS); | |
1365 | default_par->mem_config = pm2_RD(default_par, PM2R_MEM_CONFIG); | |
1366 | DPRINTK("MemControl 0x%x BootAddress 0x%x MemConfig 0x%x\n", | |
1367 | default_par->mem_control, default_par->boot_address, | |
1368 | default_par->mem_config); | |
1369 | ||
9127fa28 PDS |
1370 | if(default_par->mem_control == 0 && |
1371 | default_par->boot_address == 0x31 && | |
f1c15f93 | 1372 | default_par->mem_config == 0x259fffff) { |
9a31f0f7 | 1373 | default_par->memclock = CVPPC_MEMCLOCK; |
9127fa28 PDS |
1374 | default_par->mem_control=0; |
1375 | default_par->boot_address=0x20; | |
1376 | default_par->mem_config=0xe6002021; | |
f1c15f93 KH |
1377 | if (pdev->subsystem_vendor == 0x1048 && |
1378 | pdev->subsystem_device == 0x0a31) { | |
1379 | DPRINTK("subsystem_vendor: %04x, subsystem_device: %04x\n", | |
1380 | pdev->subsystem_vendor, pdev->subsystem_device); | |
1381 | DPRINTK("We have not been initialized by VGA BIOS " | |
1382 | "and are running on an Elsa Winner 2000 Office\n"); | |
1383 | DPRINTK("Initializing card timings manually...\n"); | |
1384 | default_par->memclock=70000; | |
1385 | } | |
1386 | if (pdev->subsystem_vendor == 0x3d3d && | |
1387 | pdev->subsystem_device == 0x0100) { | |
1388 | DPRINTK("subsystem_vendor: %04x, subsystem_device: %04x\n", | |
1389 | pdev->subsystem_vendor, pdev->subsystem_device); | |
1390 | DPRINTK("We have not been initialized by VGA BIOS " | |
1391 | "and are running on an 3dlabs reference board\n"); | |
1392 | DPRINTK("Initializing card timings manually...\n"); | |
9a31f0f7 | 1393 | default_par->memclock=74894; |
f1c15f93 | 1394 | } |
9127fa28 PDS |
1395 | } |
1396 | ||
1da177e4 LT |
1397 | /* Now work out how big lfb is going to be. */ |
1398 | switch(default_par->mem_config & PM2F_MEM_CONFIG_RAM_MASK) { | |
1399 | case PM2F_MEM_BANKS_1: | |
4560daaf | 1400 | pm2fb_fix.smem_len=0x200000; |
1da177e4 LT |
1401 | break; |
1402 | case PM2F_MEM_BANKS_2: | |
4560daaf | 1403 | pm2fb_fix.smem_len=0x400000; |
1da177e4 LT |
1404 | break; |
1405 | case PM2F_MEM_BANKS_3: | |
4560daaf | 1406 | pm2fb_fix.smem_len=0x600000; |
1da177e4 LT |
1407 | break; |
1408 | case PM2F_MEM_BANKS_4: | |
4560daaf | 1409 | pm2fb_fix.smem_len=0x800000; |
1da177e4 LT |
1410 | break; |
1411 | } | |
1da177e4 | 1412 | pm2fb_fix.smem_start = pci_resource_start(pdev, 1); |
1da177e4 LT |
1413 | |
1414 | /* Linear frame buffer - request region and map it. */ | |
1415 | if ( !request_mem_region(pm2fb_fix.smem_start, pm2fb_fix.smem_len, | |
1416 | "pm2fb smem") ) { | |
1417 | printk(KERN_WARNING "pm2fb: Can't reserve smem.\n"); | |
1418 | goto err_exit_mmio; | |
1419 | } | |
4560daaf | 1420 | info->screen_base = |
1da177e4 | 1421 | ioremap_nocache(pm2fb_fix.smem_start, pm2fb_fix.smem_len); |
4560daaf | 1422 | if ( !info->screen_base ) { |
1da177e4 LT |
1423 | printk(KERN_WARNING "pm2fb: Can't ioremap smem area.\n"); |
1424 | release_mem_region(pm2fb_fix.smem_start, pm2fb_fix.smem_len); | |
1425 | goto err_exit_mmio; | |
1426 | } | |
1427 | ||
d5383fcc KH |
1428 | #ifdef CONFIG_MTRR |
1429 | default_par->mtrr_handle = -1; | |
1430 | if (!nomtrr) | |
1431 | default_par->mtrr_handle = | |
1432 | mtrr_add(pm2fb_fix.smem_start, | |
1433 | pm2fb_fix.smem_len, | |
1434 | MTRR_TYPE_WRCOMB, 1); | |
1435 | #endif | |
1436 | ||
1da177e4 | 1437 | info->fbops = &pm2fb_ops; |
2f7bb99f | 1438 | info->fix = pm2fb_fix; |
6772a2ee | 1439 | info->pseudo_palette = default_par->palette; |
1da177e4 | 1440 | info->flags = FBINFO_DEFAULT | |
2f7bb99f KH |
1441 | FBINFO_HWACCEL_YPAN | |
1442 | FBINFO_HWACCEL_COPYAREA | | |
91b3a6f4 | 1443 | FBINFO_HWACCEL_IMAGEBLIT | |
2f7bb99f | 1444 | FBINFO_HWACCEL_FILLRECT; |
1da177e4 | 1445 | |
91b3a6f4 KH |
1446 | info->pixmap.addr = kmalloc(PM2_PIXMAP_SIZE, GFP_KERNEL); |
1447 | if (!info->pixmap.addr) { | |
1448 | err_retval = -ENOMEM; | |
1449 | goto err_exit_pixmap; | |
1450 | } | |
1451 | info->pixmap.size = PM2_PIXMAP_SIZE; | |
1452 | info->pixmap.buf_align = 4; | |
1453 | info->pixmap.scan_align = 4; | |
1454 | info->pixmap.access_align = 32; | |
1455 | info->pixmap.flags = FB_PIXMAP_SYSTEM; | |
1456 | ||
d5383fcc | 1457 | if (noaccel) { |
91b3a6f4 KH |
1458 | printk(KERN_DEBUG "disabling acceleration\n"); |
1459 | info->flags |= FBINFO_HWACCEL_DISABLED; | |
1460 | info->pixmap.scan_align = 1; | |
d5383fcc KH |
1461 | } |
1462 | ||
1da177e4 LT |
1463 | if (!mode) |
1464 | mode = "640x480@60"; | |
2f7bb99f KH |
1465 | |
1466 | err = fb_find_mode(&info->var, info, mode, NULL, 0, NULL, 8); | |
1da177e4 LT |
1467 | if (!err || err == 4) |
1468 | info->var = pm2fb_var; | |
1469 | ||
1470 | if (fb_alloc_cmap(&info->cmap, 256, 0) < 0) | |
435d56fc | 1471 | goto err_exit_both; |
1da177e4 LT |
1472 | |
1473 | if (register_framebuffer(info) < 0) | |
435d56fc | 1474 | goto err_exit_all; |
1da177e4 LT |
1475 | |
1476 | printk(KERN_INFO "fb%d: %s frame buffer device, memory = %dK.\n", | |
4560daaf | 1477 | info->node, info->fix.id, pm2fb_fix.smem_len / 1024); |
1da177e4 LT |
1478 | |
1479 | /* | |
1480 | * Our driver data | |
1481 | */ | |
1482 | pci_set_drvdata(pdev, info); | |
1483 | ||
1484 | return 0; | |
1485 | ||
1486 | err_exit_all: | |
2f7bb99f KH |
1487 | fb_dealloc_cmap(&info->cmap); |
1488 | err_exit_both: | |
91b3a6f4 KH |
1489 | kfree(info->pixmap.addr); |
1490 | err_exit_pixmap: | |
1da177e4 LT |
1491 | iounmap(info->screen_base); |
1492 | release_mem_region(pm2fb_fix.smem_start, pm2fb_fix.smem_len); | |
1493 | err_exit_mmio: | |
1494 | iounmap(default_par->v_regs); | |
1495 | release_mem_region(pm2fb_fix.mmio_start, pm2fb_fix.mmio_len); | |
1496 | err_exit_neither: | |
1497 | framebuffer_release(info); | |
1498 | return err_retval; | |
1499 | } | |
1500 | ||
1501 | /** | |
1502 | * Device removal. | |
1503 | * | |
1504 | * Release all device resources. | |
1505 | * | |
1506 | * @param pdev PCI device to clean up. | |
1507 | */ | |
1508 | static void __devexit pm2fb_remove(struct pci_dev *pdev) | |
1509 | { | |
1510 | struct fb_info* info = pci_get_drvdata(pdev); | |
1511 | struct fb_fix_screeninfo* fix = &info->fix; | |
1512 | struct pm2fb_par *par = info->par; | |
1513 | ||
1514 | unregister_framebuffer(info); | |
2f7bb99f | 1515 | |
d5383fcc KH |
1516 | #ifdef CONFIG_MTRR |
1517 | if (par->mtrr_handle >= 0) | |
1518 | mtrr_del(par->mtrr_handle, info->fix.smem_start, | |
1519 | info->fix.smem_len); | |
1520 | #endif /* CONFIG_MTRR */ | |
1da177e4 LT |
1521 | iounmap(info->screen_base); |
1522 | release_mem_region(fix->smem_start, fix->smem_len); | |
1523 | iounmap(par->v_regs); | |
1524 | release_mem_region(fix->mmio_start, fix->mmio_len); | |
1525 | ||
1526 | pci_set_drvdata(pdev, NULL); | |
91b3a6f4 KH |
1527 | if (info->pixmap.addr) |
1528 | kfree(info->pixmap.addr); | |
1da177e4 LT |
1529 | kfree(info); |
1530 | } | |
1531 | ||
1532 | static struct pci_device_id pm2fb_id_table[] = { | |
1533 | { PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_TVP4020, | |
1534 | PCI_ANY_ID, PCI_ANY_ID, PCI_BASE_CLASS_DISPLAY << 16, | |
1535 | 0xff0000, 0 }, | |
1536 | { PCI_VENDOR_ID_3DLABS, PCI_DEVICE_ID_3DLABS_PERMEDIA2, | |
1537 | PCI_ANY_ID, PCI_ANY_ID, PCI_BASE_CLASS_DISPLAY << 16, | |
1538 | 0xff0000, 0 }, | |
1539 | { PCI_VENDOR_ID_3DLABS, PCI_DEVICE_ID_3DLABS_PERMEDIA2V, | |
1540 | PCI_ANY_ID, PCI_ANY_ID, PCI_BASE_CLASS_DISPLAY << 16, | |
1541 | 0xff0000, 0 }, | |
f1c15f93 KH |
1542 | { PCI_VENDOR_ID_3DLABS, PCI_DEVICE_ID_3DLABS_PERMEDIA2V, |
1543 | PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_NOT_DEFINED_VGA << 8, | |
1544 | 0xff00, 0 }, | |
1da177e4 LT |
1545 | { 0, } |
1546 | }; | |
1547 | ||
1548 | static struct pci_driver pm2fb_driver = { | |
1549 | .name = "pm2fb", | |
2f7bb99f KH |
1550 | .id_table = pm2fb_id_table, |
1551 | .probe = pm2fb_probe, | |
1552 | .remove = __devexit_p(pm2fb_remove), | |
1da177e4 LT |
1553 | }; |
1554 | ||
1555 | MODULE_DEVICE_TABLE(pci, pm2fb_id_table); | |
1556 | ||
1557 | ||
1558 | #ifndef MODULE | |
1559 | /** | |
1560 | * Parse user speficied options. | |
1561 | * | |
1562 | * This is, comma-separated options following `video=pm2fb:'. | |
1563 | */ | |
1564 | static int __init pm2fb_setup(char *options) | |
1565 | { | |
1566 | char* this_opt; | |
1567 | ||
1568 | if (!options || !*options) | |
1569 | return 0; | |
1570 | ||
2f7bb99f | 1571 | while ((this_opt = strsep(&options, ",")) != NULL) { |
1da177e4 LT |
1572 | if (!*this_opt) |
1573 | continue; | |
1574 | if(!strcmp(this_opt, "lowhsync")) { | |
1575 | lowhsync = 1; | |
1576 | } else if(!strcmp(this_opt, "lowvsync")) { | |
1577 | lowvsync = 1; | |
d5383fcc KH |
1578 | #ifdef CONFIG_MTRR |
1579 | } else if (!strncmp(this_opt, "nomtrr", 6)) { | |
1580 | nomtrr = 1; | |
1581 | #endif | |
1582 | } else if (!strncmp(this_opt, "noaccel", 7)) { | |
1583 | noaccel = 1; | |
1da177e4 LT |
1584 | } else { |
1585 | mode = this_opt; | |
1586 | } | |
1587 | } | |
1588 | return 0; | |
1589 | } | |
1590 | #endif | |
1591 | ||
1592 | ||
1593 | static int __init pm2fb_init(void) | |
1594 | { | |
1595 | #ifndef MODULE | |
1596 | char *option = NULL; | |
1597 | ||
1598 | if (fb_get_options("pm2fb", &option)) | |
1599 | return -ENODEV; | |
1600 | pm2fb_setup(option); | |
1601 | #endif | |
1602 | ||
1603 | return pci_register_driver(&pm2fb_driver); | |
1604 | } | |
1605 | ||
1606 | module_init(pm2fb_init); | |
1607 | ||
1608 | #ifdef MODULE | |
1609 | /* | |
1610 | * Cleanup | |
1611 | */ | |
1612 | ||
1613 | static void __exit pm2fb_exit(void) | |
1614 | { | |
1615 | pci_unregister_driver(&pm2fb_driver); | |
1616 | } | |
1617 | #endif | |
1618 | ||
1619 | #ifdef MODULE | |
1620 | module_exit(pm2fb_exit); | |
1621 | ||
1622 | module_param(mode, charp, 0); | |
1623 | MODULE_PARM_DESC(mode, "Preferred video mode e.g. '648x480-8@60'"); | |
1624 | module_param(lowhsync, bool, 0); | |
1625 | MODULE_PARM_DESC(lowhsync, "Force horizontal sync low regardless of mode"); | |
1626 | module_param(lowvsync, bool, 0); | |
1627 | MODULE_PARM_DESC(lowvsync, "Force vertical sync low regardless of mode"); | |
d5383fcc KH |
1628 | module_param(noaccel, bool, 0); |
1629 | MODULE_PARM_DESC(noaccel, "Disable acceleration"); | |
1630 | #ifdef CONFIG_MTRR | |
1631 | module_param(nomtrr, bool, 0); | |
1632 | MODULE_PARM_DESC(nomtrr, "Disable MTRR support (0 or 1=disabled) (default=0)"); | |
1633 | #endif | |
1da177e4 LT |
1634 | |
1635 | MODULE_AUTHOR("Jim Hague <jim.hague@acm.org>"); | |
1636 | MODULE_DESCRIPTION("Permedia2 framebuffer device driver"); | |
1637 | MODULE_LICENSE("GPL"); | |
1638 | #endif |