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Commit | Line | Data |
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09c434b8 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
1da177e4 LT |
2 | /* |
3 | * | |
4 | * tdfxfb.c | |
5 | * | |
6 | * Author: Hannu Mallat <hmallat@cc.hut.fi> | |
7 | * | |
3cbe9cff | 8 | * Copyright © 1999 Hannu Mallat |
1da177e4 LT |
9 | * All rights reserved |
10 | * | |
11 | * Created : Thu Sep 23 18:17:43 1999, hmallat | |
12 | * Last modified: Tue Nov 2 21:19:47 1999, hmallat | |
13 | * | |
feff3880 KH |
14 | * I2C part copied from the i2c-voodoo3.c driver by: |
15 | * Frodo Looijaard <frodol@dds.nl>, | |
16 | * Philip Edelbrock <phil@netroedge.com>, | |
17 | * Ralph Metzler <rjkm@thp.uni-koeln.de>, and | |
18 | * Mark D. Studebaker <mdsxyz123@yahoo.com> | |
19 | * | |
8af1d50f | 20 | * Lots of the information here comes from the Daryll Strauss' Banshee |
1da177e4 LT |
21 | * patches to the XF86 server, and the rest comes from the 3dfx |
22 | * Banshee specification. I'm very much indebted to Daryll for his | |
23 | * work on the X server. | |
24 | * | |
25 | * Voodoo3 support was contributed Harold Oga. Lots of additions | |
26 | * (proper acceleration, 24 bpp, hardware cursor) and bug fixes by Attila | |
27 | * Kesmarki. Thanks guys! | |
28 | * | |
29 | * Voodoo1 and Voodoo2 support aren't relevant to this driver as they | |
30 | * behave very differently from the Voodoo3/4/5. For anyone wanting to | |
31 | * use frame buffer on the Voodoo1/2, see the sstfb driver (which is | |
32 | * located at http://www.sourceforge.net/projects/sstfb). | |
8af1d50f | 33 | * |
1da177e4 LT |
34 | * While I _am_ grateful to 3Dfx for releasing the specs for Banshee, |
35 | * I do wish the next version is a bit more complete. Without the XF86 | |
36 | * patches I couldn't have gotten even this far... for instance, the | |
37 | * extensions to the VGA register set go completely unmentioned in the | |
38 | * spec! Also, lots of references are made to the 'SST core', but no | |
39 | * spec is publicly available, AFAIK. | |
40 | * | |
41 | * The structure of this driver comes pretty much from the Permedia | |
42 | * driver by Ilario Nardinocchi, which in turn is based on skeletonfb. | |
8af1d50f | 43 | * |
1da177e4 | 44 | * TODO: |
1da177e4 LT |
45 | * - multihead support (basically need to support an array of fb_infos) |
46 | * - support other architectures (PPC, Alpha); does the fact that the VGA | |
47 | * core can be accessed only thru I/O (not memory mapped) complicate | |
48 | * things? | |
49 | * | |
50 | * Version history: | |
51 | * | |
3cbe9cff | 52 | * 0.1.4 (released 2002-05-28) ported over to new fbdev api by James Simmons |
1da177e4 | 53 | * |
3cbe9cff KH |
54 | * 0.1.3 (released 1999-11-02) added Attila's panning support, code |
55 | * reorg, hwcursor address page size alignment | |
af901ca1 | 56 | * (for mmapping both frame buffer and regs), |
3cbe9cff KH |
57 | * and my changes to get rid of hardcoded |
58 | * VGA i/o register locations (uses PCI | |
59 | * configuration info now) | |
60 | * 0.1.2 (released 1999-10-19) added Attila Kesmarki's bug fixes and | |
61 | * improvements | |
62 | * 0.1.1 (released 1999-10-07) added Voodoo3 support by Harold Oga. | |
63 | * 0.1.0 (released 1999-10-06) initial version | |
1da177e4 LT |
64 | * |
65 | */ | |
66 | ||
1da177e4 LT |
67 | #include <linux/module.h> |
68 | #include <linux/kernel.h> | |
69 | #include <linux/errno.h> | |
70 | #include <linux/string.h> | |
71 | #include <linux/mm.h> | |
1da177e4 | 72 | #include <linux/slab.h> |
1da177e4 LT |
73 | #include <linux/fb.h> |
74 | #include <linux/init.h> | |
75 | #include <linux/pci.h> | |
1da177e4 | 76 | #include <asm/io.h> |
1da177e4 LT |
77 | |
78 | #include <video/tdfx.h> | |
79 | ||
5ae12170 | 80 | #define DPRINTK(a, b...) pr_debug("fb: %s: " a, __func__ , ## b) |
1da177e4 LT |
81 | |
82 | #define BANSHEE_MAX_PIXCLOCK 270000 | |
83 | #define VOODOO3_MAX_PIXCLOCK 300000 | |
84 | #define VOODOO5_MAX_PIXCLOCK 350000 | |
85 | ||
ca9384c5 | 86 | static const struct fb_fix_screeninfo tdfx_fix = { |
1da177e4 | 87 | .type = FB_TYPE_PACKED_PIXELS, |
8af1d50f | 88 | .visual = FB_VISUAL_PSEUDOCOLOR, |
1da177e4 | 89 | .ypanstep = 1, |
8af1d50f | 90 | .ywrapstep = 1, |
1da177e4 LT |
91 | .accel = FB_ACCEL_3DFX_BANSHEE |
92 | }; | |
93 | ||
ca9384c5 | 94 | static const struct fb_var_screeninfo tdfx_var = { |
1da177e4 LT |
95 | /* "640x480, 8 bpp @ 60 Hz */ |
96 | .xres = 640, | |
97 | .yres = 480, | |
98 | .xres_virtual = 640, | |
99 | .yres_virtual = 1024, | |
8af1d50f | 100 | .bits_per_pixel = 8, |
1da177e4 LT |
101 | .red = {0, 8, 0}, |
102 | .blue = {0, 8, 0}, | |
103 | .green = {0, 8, 0}, | |
104 | .activate = FB_ACTIVATE_NOW, | |
105 | .height = -1, | |
106 | .width = -1, | |
107 | .accel_flags = FB_ACCELF_TEXT, | |
108 | .pixclock = 39722, | |
109 | .left_margin = 40, | |
110 | .right_margin = 24, | |
111 | .upper_margin = 32, | |
112 | .lower_margin = 11, | |
113 | .hsync_len = 96, | |
114 | .vsync_len = 2, | |
115 | .vmode = FB_VMODE_NONINTERLACED | |
116 | }; | |
117 | ||
118 | /* | |
119 | * PCI driver prototypes | |
120 | */ | |
48c68c4f GKH |
121 | static int tdfxfb_probe(struct pci_dev *pdev, const struct pci_device_id *id); |
122 | static void tdfxfb_remove(struct pci_dev *pdev); | |
1da177e4 | 123 | |
410bcc7a | 124 | static const struct pci_device_id tdfxfb_id_table[] = { |
1da177e4 LT |
125 | { PCI_VENDOR_ID_3DFX, PCI_DEVICE_ID_3DFX_BANSHEE, |
126 | PCI_ANY_ID, PCI_ANY_ID, PCI_BASE_CLASS_DISPLAY << 16, | |
127 | 0xff0000, 0 }, | |
128 | { PCI_VENDOR_ID_3DFX, PCI_DEVICE_ID_3DFX_VOODOO3, | |
129 | PCI_ANY_ID, PCI_ANY_ID, PCI_BASE_CLASS_DISPLAY << 16, | |
130 | 0xff0000, 0 }, | |
131 | { PCI_VENDOR_ID_3DFX, PCI_DEVICE_ID_3DFX_VOODOO5, | |
132 | PCI_ANY_ID, PCI_ANY_ID, PCI_BASE_CLASS_DISPLAY << 16, | |
133 | 0xff0000, 0 }, | |
134 | { 0, } | |
135 | }; | |
136 | ||
137 | static struct pci_driver tdfxfb_driver = { | |
138 | .name = "tdfxfb", | |
8af1d50f KH |
139 | .id_table = tdfxfb_id_table, |
140 | .probe = tdfxfb_probe, | |
48c68c4f | 141 | .remove = tdfxfb_remove, |
1da177e4 LT |
142 | }; |
143 | ||
144 | MODULE_DEVICE_TABLE(pci, tdfxfb_id_table); | |
145 | ||
146 | /* | |
8af1d50f | 147 | * Driver data |
1da177e4 | 148 | */ |
90b0f085 KH |
149 | static int nopan; |
150 | static int nowrap = 1; /* not implemented (yet) */ | |
151 | static int hwcursor = 1; | |
48c68c4f | 152 | static char *mode_option; |
48c68c4f | 153 | static bool nomtrr; |
1da177e4 | 154 | |
8af1d50f | 155 | /* ------------------------------------------------------------------------- |
3cbe9cff | 156 | * Hardware-specific funcions |
1da177e4 LT |
157 | * ------------------------------------------------------------------------- */ |
158 | ||
8af1d50f KH |
159 | static inline u8 vga_inb(struct tdfx_par *par, u32 reg) |
160 | { | |
161 | return inb(par->iobase + reg - 0x300); | |
1da177e4 | 162 | } |
4f05b53b | 163 | |
8af1d50f KH |
164 | static inline void vga_outb(struct tdfx_par *par, u32 reg, u8 val) |
165 | { | |
166 | outb(val, par->iobase + reg - 0x300); | |
1da177e4 | 167 | } |
1da177e4 | 168 | |
8af1d50f KH |
169 | static inline void gra_outb(struct tdfx_par *par, u32 idx, u8 val) |
170 | { | |
171 | vga_outb(par, GRA_I, idx); | |
254c9471 | 172 | wmb(); |
8af1d50f | 173 | vga_outb(par, GRA_D, val); |
254c9471 | 174 | wmb(); |
1da177e4 LT |
175 | } |
176 | ||
8af1d50f KH |
177 | static inline void seq_outb(struct tdfx_par *par, u32 idx, u8 val) |
178 | { | |
179 | vga_outb(par, SEQ_I, idx); | |
254c9471 | 180 | wmb(); |
8af1d50f | 181 | vga_outb(par, SEQ_D, val); |
254c9471 | 182 | wmb(); |
1da177e4 LT |
183 | } |
184 | ||
8af1d50f KH |
185 | static inline u8 seq_inb(struct tdfx_par *par, u32 idx) |
186 | { | |
187 | vga_outb(par, SEQ_I, idx); | |
254c9471 | 188 | mb(); |
8af1d50f | 189 | return vga_inb(par, SEQ_D); |
1da177e4 LT |
190 | } |
191 | ||
8af1d50f KH |
192 | static inline void crt_outb(struct tdfx_par *par, u32 idx, u8 val) |
193 | { | |
194 | vga_outb(par, CRT_I, idx); | |
254c9471 | 195 | wmb(); |
8af1d50f | 196 | vga_outb(par, CRT_D, val); |
254c9471 | 197 | wmb(); |
1da177e4 LT |
198 | } |
199 | ||
8af1d50f KH |
200 | static inline u8 crt_inb(struct tdfx_par *par, u32 idx) |
201 | { | |
202 | vga_outb(par, CRT_I, idx); | |
254c9471 | 203 | mb(); |
8af1d50f | 204 | return vga_inb(par, CRT_D); |
1da177e4 LT |
205 | } |
206 | ||
8af1d50f | 207 | static inline void att_outb(struct tdfx_par *par, u32 idx, u8 val) |
1da177e4 LT |
208 | { |
209 | unsigned char tmp; | |
8af1d50f | 210 | |
1da177e4 LT |
211 | tmp = vga_inb(par, IS1_R); |
212 | vga_outb(par, ATT_IW, idx); | |
213 | vga_outb(par, ATT_IW, val); | |
214 | } | |
215 | ||
216 | static inline void vga_disable_video(struct tdfx_par *par) | |
217 | { | |
218 | unsigned char s; | |
219 | ||
220 | s = seq_inb(par, 0x01) | 0x20; | |
221 | seq_outb(par, 0x00, 0x01); | |
222 | seq_outb(par, 0x01, s); | |
223 | seq_outb(par, 0x00, 0x03); | |
224 | } | |
225 | ||
226 | static inline void vga_enable_video(struct tdfx_par *par) | |
227 | { | |
228 | unsigned char s; | |
229 | ||
230 | s = seq_inb(par, 0x01) & 0xdf; | |
231 | seq_outb(par, 0x00, 0x01); | |
232 | seq_outb(par, 0x01, s); | |
233 | seq_outb(par, 0x00, 0x03); | |
234 | } | |
235 | ||
236 | static inline void vga_enable_palette(struct tdfx_par *par) | |
237 | { | |
238 | vga_inb(par, IS1_R); | |
254c9471 | 239 | mb(); |
1da177e4 LT |
240 | vga_outb(par, ATT_IW, 0x20); |
241 | } | |
242 | ||
8af1d50f | 243 | static inline u32 tdfx_inl(struct tdfx_par *par, unsigned int reg) |
1da177e4 LT |
244 | { |
245 | return readl(par->regbase_virt + reg); | |
246 | } | |
247 | ||
248 | static inline void tdfx_outl(struct tdfx_par *par, unsigned int reg, u32 val) | |
249 | { | |
250 | writel(val, par->regbase_virt + reg); | |
251 | } | |
252 | ||
253 | static inline void banshee_make_room(struct tdfx_par *par, int size) | |
254 | { | |
255 | /* Note: The Voodoo3's onboard FIFO has 32 slots. This loop | |
256 | * won't quit if you ask for more. */ | |
f67fd7c1 KH |
257 | while ((tdfx_inl(par, STATUS) & 0x1f) < size - 1) |
258 | cpu_relax(); | |
1da177e4 | 259 | } |
3cbe9cff | 260 | |
1da177e4 LT |
261 | static int banshee_wait_idle(struct fb_info *info) |
262 | { | |
a807f618 | 263 | struct tdfx_par *par = info->par; |
1da177e4 LT |
264 | int i = 0; |
265 | ||
266 | banshee_make_room(par, 1); | |
267 | tdfx_outl(par, COMMAND_3D, COMMAND_3D_NOP); | |
268 | ||
4f05b53b | 269 | do { |
3cbe9cff KH |
270 | if ((tdfx_inl(par, STATUS) & STATUS_BUSY) == 0) |
271 | i++; | |
4f05b53b KH |
272 | } while (i < 3); |
273 | ||
1da177e4 LT |
274 | return 0; |
275 | } | |
276 | ||
277 | /* | |
8af1d50f | 278 | * Set the color of a palette entry in 8bpp mode |
1da177e4 LT |
279 | */ |
280 | static inline void do_setpalentry(struct tdfx_par *par, unsigned regno, u32 c) | |
3cbe9cff | 281 | { |
1da177e4 LT |
282 | banshee_make_room(par, 2); |
283 | tdfx_outl(par, DACADDR, regno); | |
254c9471 KH |
284 | /* read after write makes it working */ |
285 | tdfx_inl(par, DACADDR); | |
1da177e4 LT |
286 | tdfx_outl(par, DACDATA, c); |
287 | } | |
288 | ||
8af1d50f | 289 | static u32 do_calc_pll(int freq, int *freq_out) |
1da177e4 | 290 | { |
0fbe9caf | 291 | int m, n, k, best_m, best_n, best_k, best_error; |
1da177e4 | 292 | int fref = 14318; |
8af1d50f | 293 | |
1da177e4 LT |
294 | best_error = freq; |
295 | best_n = best_m = best_k = 0; | |
0fbe9caf RD |
296 | |
297 | for (k = 3; k >= 0; k--) { | |
298 | for (m = 63; m >= 0; m--) { | |
299 | /* | |
300 | * Estimate value of n that produces target frequency | |
301 | * with current m and k | |
302 | */ | |
4f05b53b | 303 | int n_estimated = ((freq * (m + 2) << k) / fref) - 2; |
0fbe9caf RD |
304 | |
305 | /* Search neighborhood of estimated n */ | |
4f05b53b KH |
306 | for (n = max(0, n_estimated); |
307 | n <= min(255, n_estimated + 1); | |
308 | n++) { | |
0fbe9caf RD |
309 | /* |
310 | * Calculate PLL freqency with current m, k and | |
311 | * estimated n | |
312 | */ | |
4f05b53b | 313 | int f = (fref * (n + 2) / (m + 2)) >> k; |
8af1d50f | 314 | int error = abs(f - freq); |
0fbe9caf RD |
315 | |
316 | /* | |
8af1d50f | 317 | * If this is the closest we've come to the |
0fbe9caf RD |
318 | * target frequency then remember n, m and k |
319 | */ | |
8af1d50f | 320 | if (error < best_error) { |
0fbe9caf | 321 | best_error = error; |
8af1d50f KH |
322 | best_n = n; |
323 | best_m = m; | |
324 | best_k = k; | |
1da177e4 LT |
325 | } |
326 | } | |
327 | } | |
328 | } | |
0fbe9caf | 329 | |
1da177e4 LT |
330 | n = best_n; |
331 | m = best_m; | |
332 | k = best_k; | |
4f05b53b | 333 | *freq_out = (fref * (n + 2) / (m + 2)) >> k; |
0fbe9caf | 334 | |
1da177e4 LT |
335 | return (n << 8) | (m << 2) | k; |
336 | } | |
337 | ||
8af1d50f | 338 | static void do_write_regs(struct fb_info *info, struct banshee_reg *reg) |
1da177e4 | 339 | { |
a807f618 | 340 | struct tdfx_par *par = info->par; |
1da177e4 LT |
341 | int i; |
342 | ||
343 | banshee_wait_idle(info); | |
344 | ||
345 | tdfx_outl(par, MISCINIT1, tdfx_inl(par, MISCINIT1) | 0x01); | |
346 | ||
347 | crt_outb(par, 0x11, crt_inb(par, 0x11) & 0x7f); /* CRT unprotect */ | |
348 | ||
349 | banshee_make_room(par, 3); | |
8af1d50f KH |
350 | tdfx_outl(par, VGAINIT1, reg->vgainit1 & 0x001FFFFF); |
351 | tdfx_outl(par, VIDPROCCFG, reg->vidcfg & ~0x00000001); | |
1da177e4 LT |
352 | #if 0 |
353 | tdfx_outl(par, PLLCTRL1, reg->mempll); | |
354 | tdfx_outl(par, PLLCTRL2, reg->gfxpll); | |
355 | #endif | |
8af1d50f | 356 | tdfx_outl(par, PLLCTRL0, reg->vidpll); |
1da177e4 LT |
357 | |
358 | vga_outb(par, MISC_W, reg->misc[0x00] | 0x01); | |
359 | ||
360 | for (i = 0; i < 5; i++) | |
361 | seq_outb(par, i, reg->seq[i]); | |
362 | ||
363 | for (i = 0; i < 25; i++) | |
364 | crt_outb(par, i, reg->crt[i]); | |
365 | ||
366 | for (i = 0; i < 9; i++) | |
367 | gra_outb(par, i, reg->gra[i]); | |
368 | ||
369 | for (i = 0; i < 21; i++) | |
370 | att_outb(par, i, reg->att[i]); | |
371 | ||
372 | crt_outb(par, 0x1a, reg->ext[0]); | |
373 | crt_outb(par, 0x1b, reg->ext[1]); | |
374 | ||
375 | vga_enable_palette(par); | |
376 | vga_enable_video(par); | |
377 | ||
4f05b53b | 378 | banshee_make_room(par, 9); |
8af1d50f KH |
379 | tdfx_outl(par, VGAINIT0, reg->vgainit0); |
380 | tdfx_outl(par, DACMODE, reg->dacmode); | |
381 | tdfx_outl(par, VIDDESKSTRIDE, reg->stride); | |
90b0f085 | 382 | tdfx_outl(par, HWCURPATADDR, reg->curspataddr); |
8af1d50f KH |
383 | |
384 | tdfx_outl(par, VIDSCREENSIZE, reg->screensize); | |
385 | tdfx_outl(par, VIDDESKSTART, reg->startaddr); | |
386 | tdfx_outl(par, VIDPROCCFG, reg->vidcfg); | |
387 | tdfx_outl(par, VGAINIT1, reg->vgainit1); | |
388 | tdfx_outl(par, MISCINIT0, reg->miscinit0); | |
389 | ||
390 | banshee_make_room(par, 8); | |
4f05b53b KH |
391 | tdfx_outl(par, SRCBASE, reg->startaddr); |
392 | tdfx_outl(par, DSTBASE, reg->startaddr); | |
8af1d50f KH |
393 | tdfx_outl(par, COMMANDEXTRA_2D, 0); |
394 | tdfx_outl(par, CLIP0MIN, 0); | |
395 | tdfx_outl(par, CLIP0MAX, 0x0fff0fff); | |
396 | tdfx_outl(par, CLIP1MIN, 0); | |
397 | tdfx_outl(par, CLIP1MAX, 0x0fff0fff); | |
398 | tdfx_outl(par, SRCXY, 0); | |
1da177e4 LT |
399 | |
400 | banshee_wait_idle(info); | |
401 | } | |
402 | ||
8af1d50f | 403 | static unsigned long do_lfb_size(struct tdfx_par *par, unsigned short dev_id) |
1da177e4 | 404 | { |
4f05b53b KH |
405 | u32 draminit0 = tdfx_inl(par, DRAMINIT0); |
406 | u32 draminit1 = tdfx_inl(par, DRAMINIT1); | |
333f9817 | 407 | u32 miscinit1; |
4f05b53b | 408 | int num_chips = (draminit0 & DRAMINIT0_SGRAM_NUM) ? 8 : 4; |
333f9817 | 409 | int chip_size; /* in MB */ |
4f05b53b | 410 | int has_sgram = draminit1 & DRAMINIT1_MEM_SDRAM; |
8af1d50f | 411 | |
333f9817 RD |
412 | if (dev_id < PCI_DEVICE_ID_3DFX_VOODOO5) { |
413 | /* Banshee/Voodoo3 */ | |
8af1d50f | 414 | chip_size = 2; |
bf6910c0 | 415 | if (has_sgram && !(draminit0 & DRAMINIT0_SGRAM_TYPE)) |
4f05b53b | 416 | chip_size = 1; |
1da177e4 LT |
417 | } else { |
418 | /* Voodoo4/5 */ | |
333f9817 | 419 | has_sgram = 0; |
4f05b53b KH |
420 | chip_size = draminit0 & DRAMINIT0_SGRAM_TYPE_MASK; |
421 | chip_size = 1 << (chip_size >> DRAMINIT0_SGRAM_TYPE_SHIFT); | |
333f9817 | 422 | } |
333f9817 RD |
423 | |
424 | /* disable block writes for SDRAM */ | |
1da177e4 | 425 | miscinit1 = tdfx_inl(par, MISCINIT1); |
333f9817 | 426 | miscinit1 |= has_sgram ? 0 : MISCINIT1_2DBLOCK_DIS; |
1da177e4 LT |
427 | miscinit1 |= MISCINIT1_CLUT_INV; |
428 | ||
8af1d50f | 429 | banshee_make_room(par, 1); |
1da177e4 | 430 | tdfx_outl(par, MISCINIT1, miscinit1); |
4f05b53b | 431 | return num_chips * chip_size * 1024l * 1024; |
1da177e4 LT |
432 | } |
433 | ||
434 | /* ------------------------------------------------------------------------- */ | |
435 | ||
8af1d50f | 436 | static int tdfxfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) |
1da177e4 | 437 | { |
a807f618 | 438 | struct tdfx_par *par = info->par; |
1da177e4 LT |
439 | u32 lpitch; |
440 | ||
441 | if (var->bits_per_pixel != 8 && var->bits_per_pixel != 16 && | |
442 | var->bits_per_pixel != 24 && var->bits_per_pixel != 32) { | |
443 | DPRINTK("depth not supported: %u\n", var->bits_per_pixel); | |
444 | return -EINVAL; | |
445 | } | |
446 | ||
447 | if (var->xres != var->xres_virtual) | |
448 | var->xres_virtual = var->xres; | |
449 | ||
450 | if (var->yres > var->yres_virtual) | |
451 | var->yres_virtual = var->yres; | |
452 | ||
453 | if (var->xoffset) { | |
454 | DPRINTK("xoffset not supported\n"); | |
455 | return -EINVAL; | |
456 | } | |
90b0f085 | 457 | var->yoffset = 0; |
1da177e4 | 458 | |
3cbe9cff KH |
459 | /* |
460 | * Banshee doesn't support interlace, but Voodoo4/5 and probably | |
461 | * Voodoo3 do. | |
462 | * no direct information about device id now? | |
463 | * use max_pixclock for this... | |
464 | */ | |
1da177e4 | 465 | if (((var->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) && |
8af1d50f | 466 | (par->max_pixclock < VOODOO3_MAX_PIXCLOCK)) { |
1da177e4 LT |
467 | DPRINTK("interlace not supported\n"); |
468 | return -EINVAL; | |
469 | } | |
470 | ||
215059d2 KH |
471 | if (info->monspecs.hfmax && info->monspecs.vfmax && |
472 | info->monspecs.dclkmax && fb_validate_mode(var, info) < 0) { | |
473 | DPRINTK("mode outside monitor's specs\n"); | |
474 | return -EINVAL; | |
475 | } | |
476 | ||
1da177e4 | 477 | var->xres = (var->xres + 15) & ~15; /* could sometimes be 8 */ |
8af1d50f KH |
478 | lpitch = var->xres * ((var->bits_per_pixel + 7) >> 3); |
479 | ||
1da177e4 LT |
480 | if (var->xres < 320 || var->xres > 2048) { |
481 | DPRINTK("width not supported: %u\n", var->xres); | |
482 | return -EINVAL; | |
483 | } | |
8af1d50f | 484 | |
1da177e4 LT |
485 | if (var->yres < 200 || var->yres > 2048) { |
486 | DPRINTK("height not supported: %u\n", var->yres); | |
487 | return -EINVAL; | |
488 | } | |
8af1d50f | 489 | |
1da177e4 | 490 | if (lpitch * var->yres_virtual > info->fix.smem_len) { |
8af1d50f | 491 | var->yres_virtual = info->fix.smem_len / lpitch; |
1da177e4 LT |
492 | if (var->yres_virtual < var->yres) { |
493 | DPRINTK("no memory for screen (%ux%ux%u)\n", | |
8af1d50f KH |
494 | var->xres, var->yres_virtual, |
495 | var->bits_per_pixel); | |
1da177e4 LT |
496 | return -EINVAL; |
497 | } | |
498 | } | |
8af1d50f | 499 | |
1da177e4 | 500 | if (PICOS2KHZ(var->pixclock) > par->max_pixclock) { |
8af1d50f KH |
501 | DPRINTK("pixclock too high (%ldKHz)\n", |
502 | PICOS2KHZ(var->pixclock)); | |
1da177e4 LT |
503 | return -EINVAL; |
504 | } | |
505 | ||
92744dd5 KH |
506 | var->transp.offset = 0; |
507 | var->transp.length = 0; | |
8af1d50f KH |
508 | switch (var->bits_per_pixel) { |
509 | case 8: | |
3cbe9cff KH |
510 | var->red.length = 8; |
511 | var->red.offset = 0; | |
512 | var->green = var->red; | |
513 | var->blue = var->red; | |
8af1d50f KH |
514 | break; |
515 | case 16: | |
516 | var->red.offset = 11; | |
517 | var->red.length = 5; | |
518 | var->green.offset = 5; | |
519 | var->green.length = 6; | |
520 | var->blue.offset = 0; | |
521 | var->blue.length = 5; | |
522 | break; | |
523 | case 32: | |
92744dd5 KH |
524 | var->transp.offset = 24; |
525 | var->transp.length = 8; | |
12382ad9 | 526 | /* fall through */ |
8af1d50f | 527 | case 24: |
92744dd5 KH |
528 | var->red.offset = 16; |
529 | var->green.offset = 8; | |
530 | var->blue.offset = 0; | |
8af1d50f KH |
531 | var->red.length = var->green.length = var->blue.length = 8; |
532 | break; | |
1da177e4 | 533 | } |
3cbe9cff KH |
534 | var->width = -1; |
535 | var->height = -1; | |
8af1d50f | 536 | |
1da177e4 | 537 | var->accel_flags = FB_ACCELF_TEXT; |
8af1d50f KH |
538 | |
539 | DPRINTK("Checking graphics mode at %dx%d depth %d\n", | |
540 | var->xres, var->yres, var->bits_per_pixel); | |
1da177e4 LT |
541 | return 0; |
542 | } | |
543 | ||
544 | static int tdfxfb_set_par(struct fb_info *info) | |
545 | { | |
a807f618 | 546 | struct tdfx_par *par = info->par; |
4f05b53b KH |
547 | u32 hdispend = info->var.xres; |
548 | u32 hsyncsta = hdispend + info->var.right_margin; | |
549 | u32 hsyncend = hsyncsta + info->var.hsync_len; | |
550 | u32 htotal = hsyncend + info->var.left_margin; | |
1da177e4 LT |
551 | u32 hd, hs, he, ht, hbs, hbe; |
552 | u32 vd, vs, ve, vt, vbs, vbe; | |
553 | struct banshee_reg reg; | |
554 | int fout, freq; | |
4f05b53b KH |
555 | u32 wd; |
556 | u32 cpp = (info->var.bits_per_pixel + 7) >> 3; | |
8af1d50f | 557 | |
1da177e4 | 558 | memset(®, 0, sizeof(reg)); |
8af1d50f KH |
559 | |
560 | reg.vidcfg = VIDCFG_VIDPROC_ENABLE | VIDCFG_DESK_ENABLE | | |
561 | VIDCFG_CURS_X11 | | |
562 | ((cpp - 1) << VIDCFG_PIXFMT_SHIFT) | | |
563 | (cpp != 1 ? VIDCFG_CLUT_BYPASS : 0); | |
1da177e4 LT |
564 | |
565 | /* PLL settings */ | |
566 | freq = PICOS2KHZ(info->var.pixclock); | |
567 | ||
8af1d50f | 568 | reg.vidcfg &= ~VIDCFG_2X; |
1da177e4 | 569 | |
8af1d50f | 570 | if (freq > par->max_pixclock / 2) { |
1da177e4 LT |
571 | freq = freq > par->max_pixclock ? par->max_pixclock : freq; |
572 | reg.dacmode |= DACMODE_2X; | |
573 | reg.vidcfg |= VIDCFG_2X; | |
574 | hdispend >>= 1; | |
575 | hsyncsta >>= 1; | |
576 | hsyncend >>= 1; | |
577 | htotal >>= 1; | |
578 | } | |
8af1d50f | 579 | |
3cbe9cff KH |
580 | wd = (hdispend >> 3) - 1; |
581 | hd = wd; | |
1da177e4 LT |
582 | hs = (hsyncsta >> 3) - 1; |
583 | he = (hsyncend >> 3) - 1; | |
584 | ht = (htotal >> 3) - 1; | |
585 | hbs = hd; | |
586 | hbe = ht; | |
587 | ||
588 | if ((info->var.vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE) { | |
3cbe9cff | 589 | vd = (info->var.yres << 1) - 1; |
1da177e4 LT |
590 | vs = vd + (info->var.lower_margin << 1); |
591 | ve = vs + (info->var.vsync_len << 1); | |
3cbe9cff | 592 | vt = ve + (info->var.upper_margin << 1) - 1; |
4f05b53b KH |
593 | reg.screensize = info->var.xres | (info->var.yres << 13); |
594 | reg.vidcfg |= VIDCFG_HALF_MODE; | |
595 | reg.crt[0x09] = 0x80; | |
1da177e4 | 596 | } else { |
3cbe9cff | 597 | vd = info->var.yres - 1; |
1da177e4 LT |
598 | vs = vd + info->var.lower_margin; |
599 | ve = vs + info->var.vsync_len; | |
3cbe9cff | 600 | vt = ve + info->var.upper_margin - 1; |
4f05b53b KH |
601 | reg.screensize = info->var.xres | (info->var.yres << 12); |
602 | reg.vidcfg &= ~VIDCFG_HALF_MODE; | |
1da177e4 | 603 | } |
3cbe9cff KH |
604 | vbs = vd; |
605 | vbe = vt; | |
8af1d50f | 606 | |
1da177e4 | 607 | /* this is all pretty standard VGA register stuffing */ |
8af1d50f | 608 | reg.misc[0x00] = 0x0f | |
1da177e4 LT |
609 | (info->var.xres < 400 ? 0xa0 : |
610 | info->var.xres < 480 ? 0x60 : | |
611 | info->var.xres < 768 ? 0xe0 : 0x20); | |
8af1d50f | 612 | |
1da177e4 LT |
613 | reg.gra[0x05] = 0x40; |
614 | reg.gra[0x06] = 0x05; | |
615 | reg.gra[0x07] = 0x0f; | |
616 | reg.gra[0x08] = 0xff; | |
617 | ||
618 | reg.att[0x00] = 0x00; | |
619 | reg.att[0x01] = 0x01; | |
620 | reg.att[0x02] = 0x02; | |
621 | reg.att[0x03] = 0x03; | |
622 | reg.att[0x04] = 0x04; | |
623 | reg.att[0x05] = 0x05; | |
624 | reg.att[0x06] = 0x06; | |
625 | reg.att[0x07] = 0x07; | |
626 | reg.att[0x08] = 0x08; | |
627 | reg.att[0x09] = 0x09; | |
628 | reg.att[0x0a] = 0x0a; | |
629 | reg.att[0x0b] = 0x0b; | |
630 | reg.att[0x0c] = 0x0c; | |
631 | reg.att[0x0d] = 0x0d; | |
632 | reg.att[0x0e] = 0x0e; | |
633 | reg.att[0x0f] = 0x0f; | |
634 | reg.att[0x10] = 0x41; | |
1da177e4 | 635 | reg.att[0x12] = 0x0f; |
1da177e4 LT |
636 | |
637 | reg.seq[0x00] = 0x03; | |
638 | reg.seq[0x01] = 0x01; /* fixme: clkdiv2? */ | |
639 | reg.seq[0x02] = 0x0f; | |
640 | reg.seq[0x03] = 0x00; | |
641 | reg.seq[0x04] = 0x0e; | |
642 | ||
643 | reg.crt[0x00] = ht - 4; | |
644 | reg.crt[0x01] = hd; | |
645 | reg.crt[0x02] = hbs; | |
646 | reg.crt[0x03] = 0x80 | (hbe & 0x1f); | |
647 | reg.crt[0x04] = hs; | |
8af1d50f | 648 | reg.crt[0x05] = ((hbe & 0x20) << 2) | (he & 0x1f); |
1da177e4 LT |
649 | reg.crt[0x06] = vt; |
650 | reg.crt[0x07] = ((vs & 0x200) >> 2) | | |
651 | ((vd & 0x200) >> 3) | | |
652 | ((vt & 0x200) >> 4) | 0x10 | | |
653 | ((vbs & 0x100) >> 5) | | |
8af1d50f KH |
654 | ((vs & 0x100) >> 6) | |
655 | ((vd & 0x100) >> 7) | | |
656 | ((vt & 0x100) >> 8); | |
4f05b53b | 657 | reg.crt[0x09] |= 0x40 | ((vbs & 0x200) >> 4); |
1da177e4 | 658 | reg.crt[0x10] = vs; |
8af1d50f | 659 | reg.crt[0x11] = (ve & 0x0f) | 0x20; |
1da177e4 LT |
660 | reg.crt[0x12] = vd; |
661 | reg.crt[0x13] = wd; | |
1da177e4 | 662 | reg.crt[0x15] = vbs; |
8af1d50f | 663 | reg.crt[0x16] = vbe + 1; |
1da177e4 LT |
664 | reg.crt[0x17] = 0xc3; |
665 | reg.crt[0x18] = 0xff; | |
8af1d50f | 666 | |
1da177e4 | 667 | /* Banshee's nonvga stuff */ |
8af1d50f KH |
668 | reg.ext[0x00] = (((ht & 0x100) >> 8) | |
669 | ((hd & 0x100) >> 6) | | |
1da177e4 | 670 | ((hbs & 0x100) >> 4) | |
8af1d50f KH |
671 | ((hbe & 0x40) >> 1) | |
672 | ((hs & 0x100) >> 2) | | |
673 | ((he & 0x20) << 2)); | |
674 | reg.ext[0x01] = (((vt & 0x400) >> 10) | | |
675 | ((vd & 0x400) >> 8) | | |
676 | ((vbs & 0x400) >> 6) | | |
677 | ((vbe & 0x400) >> 4)); | |
678 | ||
679 | reg.vgainit0 = VGAINIT0_8BIT_DAC | | |
1da177e4 LT |
680 | VGAINIT0_EXT_ENABLE | |
681 | VGAINIT0_WAKEUP_3C3 | | |
682 | VGAINIT0_ALT_READBACK | | |
683 | VGAINIT0_EXTSHIFTOUT; | |
684 | reg.vgainit1 = tdfx_inl(par, VGAINIT1) & 0x1fffff; | |
685 | ||
90b0f085 KH |
686 | if (hwcursor) |
687 | reg.curspataddr = info->fix.smem_len; | |
688 | ||
1da177e4 | 689 | reg.cursloc = 0; |
8af1d50f KH |
690 | |
691 | reg.cursc0 = 0; | |
1da177e4 | 692 | reg.cursc1 = 0xffffff; |
8af1d50f | 693 | |
1da177e4 | 694 | reg.stride = info->var.xres * cpp; |
4f05b53b KH |
695 | reg.startaddr = info->var.yoffset * reg.stride |
696 | + info->var.xoffset * cpp; | |
1da177e4 | 697 | |
1da177e4 LT |
698 | reg.vidpll = do_calc_pll(freq, &fout); |
699 | #if 0 | |
700 | reg.mempll = do_calc_pll(..., &fout); | |
701 | reg.gfxpll = do_calc_pll(..., &fout); | |
702 | #endif | |
703 | ||
1da177e4 LT |
704 | if ((info->var.vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) |
705 | reg.vidcfg |= VIDCFG_INTERLACE; | |
706 | reg.miscinit0 = tdfx_inl(par, MISCINIT0); | |
707 | ||
708 | #if defined(__BIG_ENDIAN) | |
709 | switch (info->var.bits_per_pixel) { | |
8af1d50f KH |
710 | case 8: |
711 | case 24: | |
712 | reg.miscinit0 &= ~(1 << 30); | |
713 | reg.miscinit0 &= ~(1 << 31); | |
714 | break; | |
715 | case 16: | |
716 | reg.miscinit0 |= (1 << 30); | |
717 | reg.miscinit0 |= (1 << 31); | |
718 | break; | |
719 | case 32: | |
720 | reg.miscinit0 |= (1 << 30); | |
721 | reg.miscinit0 &= ~(1 << 31); | |
722 | break; | |
1da177e4 | 723 | } |
8af1d50f | 724 | #endif |
1da177e4 LT |
725 | do_write_regs(info, ®); |
726 | ||
727 | /* Now change fb_fix_screeninfo according to changes in par */ | |
4f05b53b | 728 | info->fix.line_length = reg.stride; |
8af1d50f | 729 | info->fix.visual = (info->var.bits_per_pixel == 8) |
1da177e4 LT |
730 | ? FB_VISUAL_PSEUDOCOLOR |
731 | : FB_VISUAL_TRUECOLOR; | |
8af1d50f KH |
732 | DPRINTK("Graphics mode is now set at %dx%d depth %d\n", |
733 | info->var.xres, info->var.yres, info->var.bits_per_pixel); | |
734 | return 0; | |
1da177e4 LT |
735 | } |
736 | ||
737 | /* A handy macro shamelessly pinched from matroxfb */ | |
3cbe9cff | 738 | #define CNVT_TOHW(val, width) ((((val) << (width)) + 0x7FFF - (val)) >> 16) |
1da177e4 | 739 | |
8af1d50f KH |
740 | static int tdfxfb_setcolreg(unsigned regno, unsigned red, unsigned green, |
741 | unsigned blue, unsigned transp, | |
742 | struct fb_info *info) | |
1da177e4 | 743 | { |
a807f618 | 744 | struct tdfx_par *par = info->par; |
1da177e4 | 745 | u32 rgbcol; |
8af1d50f KH |
746 | |
747 | if (regno >= info->cmap.len || regno > 255) | |
748 | return 1; | |
749 | ||
254c9471 KH |
750 | /* grayscale works only partially under directcolor */ |
751 | if (info->var.grayscale) { | |
752 | /* grayscale = 0.30*R + 0.59*G + 0.11*B */ | |
3cbe9cff KH |
753 | blue = (red * 77 + green * 151 + blue * 28) >> 8; |
754 | green = blue; | |
755 | red = blue; | |
254c9471 KH |
756 | } |
757 | ||
1da177e4 | 758 | switch (info->fix.visual) { |
54243cef | 759 | case FB_VISUAL_PSEUDOCOLOR: |
3cbe9cff KH |
760 | rgbcol = (((u32)red & 0xff00) << 8) | |
761 | (((u32)green & 0xff00) << 0) | | |
762 | (((u32)blue & 0xff00) >> 8); | |
54243cef AD |
763 | do_setpalentry(par, regno, rgbcol); |
764 | break; | |
765 | /* Truecolor has no hardware color palettes. */ | |
766 | case FB_VISUAL_TRUECOLOR: | |
767 | if (regno < 16) { | |
8af1d50f | 768 | rgbcol = (CNVT_TOHW(red, info->var.red.length) << |
a807f618 | 769 | info->var.red.offset) | |
8af1d50f | 770 | (CNVT_TOHW(green, info->var.green.length) << |
54243cef | 771 | info->var.green.offset) | |
8af1d50f | 772 | (CNVT_TOHW(blue, info->var.blue.length) << |
54243cef | 773 | info->var.blue.offset) | |
8af1d50f | 774 | (CNVT_TOHW(transp, info->var.transp.length) << |
54243cef AD |
775 | info->var.transp.offset); |
776 | par->palette[regno] = rgbcol; | |
777 | } | |
778 | ||
779 | break; | |
780 | default: | |
781 | DPRINTK("bad depth %u\n", info->var.bits_per_pixel); | |
782 | break; | |
1da177e4 | 783 | } |
54243cef | 784 | |
1da177e4 LT |
785 | return 0; |
786 | } | |
787 | ||
788 | /* 0 unblank, 1 blank, 2 no vsync, 3 no hsync, 4 off */ | |
789 | static int tdfxfb_blank(int blank, struct fb_info *info) | |
8af1d50f | 790 | { |
a807f618 | 791 | struct tdfx_par *par = info->par; |
4f05b53b KH |
792 | int vgablank = 1; |
793 | u32 dacmode = tdfx_inl(par, DACMODE); | |
1da177e4 | 794 | |
4f05b53b | 795 | dacmode &= ~(BIT(1) | BIT(3)); |
1da177e4 LT |
796 | |
797 | switch (blank) { | |
8af1d50f | 798 | case FB_BLANK_UNBLANK: /* Screen: On; HSync: On, VSync: On */ |
8af1d50f KH |
799 | vgablank = 0; |
800 | break; | |
801 | case FB_BLANK_NORMAL: /* Screen: Off; HSync: On, VSync: On */ | |
8af1d50f KH |
802 | break; |
803 | case FB_BLANK_VSYNC_SUSPEND: /* Screen: Off; HSync: On, VSync: Off */ | |
4f05b53b | 804 | dacmode |= BIT(3); |
8af1d50f KH |
805 | break; |
806 | case FB_BLANK_HSYNC_SUSPEND: /* Screen: Off; HSync: Off, VSync: On */ | |
4f05b53b | 807 | dacmode |= BIT(1); |
8af1d50f KH |
808 | break; |
809 | case FB_BLANK_POWERDOWN: /* Screen: Off; HSync: Off, VSync: Off */ | |
4f05b53b | 810 | dacmode |= BIT(1) | BIT(3); |
8af1d50f | 811 | break; |
1da177e4 LT |
812 | } |
813 | ||
8af1d50f | 814 | banshee_make_room(par, 1); |
1da177e4 | 815 | tdfx_outl(par, DACMODE, dacmode); |
8af1d50f | 816 | if (vgablank) |
1da177e4 LT |
817 | vga_disable_video(par); |
818 | else | |
819 | vga_enable_video(par); | |
820 | return 0; | |
821 | } | |
822 | ||
8af1d50f | 823 | /* |
1da177e4 | 824 | * Set the starting position of the visible screen to var->yoffset |
8af1d50f | 825 | */ |
1da177e4 | 826 | static int tdfxfb_pan_display(struct fb_var_screeninfo *var, |
8af1d50f | 827 | struct fb_info *info) |
1da177e4 | 828 | { |
a807f618 | 829 | struct tdfx_par *par = info->par; |
4f05b53b | 830 | u32 addr = var->yoffset * info->fix.line_length; |
1da177e4 | 831 | |
c2c12155 | 832 | if (nopan || var->xoffset) |
1da177e4 LT |
833 | return -EINVAL; |
834 | ||
1da177e4 LT |
835 | banshee_make_room(par, 1); |
836 | tdfx_outl(par, VIDDESKSTART, addr); | |
8af1d50f | 837 | |
1da177e4 LT |
838 | return 0; |
839 | } | |
840 | ||
841 | #ifdef CONFIG_FB_3DFX_ACCEL | |
842 | /* | |
8af1d50f | 843 | * FillRect 2D command (solidfill or invert (via ROP_XOR)) |
1da177e4 | 844 | */ |
8af1d50f KH |
845 | static void tdfxfb_fillrect(struct fb_info *info, |
846 | const struct fb_fillrect *rect) | |
1da177e4 | 847 | { |
a807f618 | 848 | struct tdfx_par *par = info->par; |
1da177e4 LT |
849 | u32 bpp = info->var.bits_per_pixel; |
850 | u32 stride = info->fix.line_length; | |
3cbe9cff | 851 | u32 fmt = stride | ((bpp + ((bpp == 8) ? 0 : 8)) << 13); |
1da177e4 | 852 | int tdfx_rop; |
92744dd5 KH |
853 | u32 dx = rect->dx; |
854 | u32 dy = rect->dy; | |
855 | u32 dstbase = 0; | |
8af1d50f KH |
856 | |
857 | if (rect->rop == ROP_COPY) | |
1da177e4 | 858 | tdfx_rop = TDFX_ROP_COPY; |
8af1d50f | 859 | else |
1da177e4 LT |
860 | tdfx_rop = TDFX_ROP_XOR; |
861 | ||
25985edc | 862 | /* assume always rect->height < 4096 */ |
92744dd5 KH |
863 | if (dy + rect->height > 4095) { |
864 | dstbase = stride * dy; | |
865 | dy = 0; | |
866 | } | |
25985edc | 867 | /* assume always rect->width < 4096 */ |
92744dd5 KH |
868 | if (dx + rect->width > 4095) { |
869 | dstbase += dx * bpp >> 3; | |
870 | dx = 0; | |
871 | } | |
872 | banshee_make_room(par, 6); | |
8af1d50f | 873 | tdfx_outl(par, DSTFORMAT, fmt); |
1da177e4 | 874 | if (info->fix.visual == FB_VISUAL_PSEUDOCOLOR) { |
8af1d50f | 875 | tdfx_outl(par, COLORFORE, rect->color); |
1da177e4 | 876 | } else { /* FB_VISUAL_TRUECOLOR */ |
a807f618 | 877 | tdfx_outl(par, COLORFORE, par->palette[rect->color]); |
1da177e4 | 878 | } |
8af1d50f | 879 | tdfx_outl(par, COMMAND_2D, COMMAND_2D_FILLRECT | (tdfx_rop << 24)); |
92744dd5 | 880 | tdfx_outl(par, DSTBASE, dstbase); |
8af1d50f | 881 | tdfx_outl(par, DSTSIZE, rect->width | (rect->height << 16)); |
92744dd5 | 882 | tdfx_outl(par, LAUNCH_2D, dx | (dy << 16)); |
1da177e4 LT |
883 | } |
884 | ||
885 | /* | |
8af1d50f | 886 | * Screen-to-Screen BitBlt 2D command (for the bmove fb op.) |
1da177e4 | 887 | */ |
8af1d50f KH |
888 | static void tdfxfb_copyarea(struct fb_info *info, |
889 | const struct fb_copyarea *area) | |
1da177e4 | 890 | { |
a807f618 | 891 | struct tdfx_par *par = info->par; |
8af1d50f | 892 | u32 sx = area->sx, sy = area->sy, dx = area->dx, dy = area->dy; |
1da177e4 LT |
893 | u32 bpp = info->var.bits_per_pixel; |
894 | u32 stride = info->fix.line_length; | |
895 | u32 blitcmd = COMMAND_2D_S2S_BITBLT | (TDFX_ROP_COPY << 24); | |
8af1d50f | 896 | u32 fmt = stride | ((bpp + ((bpp == 8) ? 0 : 8)) << 13); |
92744dd5 KH |
897 | u32 dstbase = 0; |
898 | u32 srcbase = 0; | |
899 | ||
25985edc | 900 | /* assume always area->height < 4096 */ |
92744dd5 KH |
901 | if (sy + area->height > 4095) { |
902 | srcbase = stride * sy; | |
903 | sy = 0; | |
904 | } | |
25985edc | 905 | /* assume always area->width < 4096 */ |
92744dd5 KH |
906 | if (sx + area->width > 4095) { |
907 | srcbase += sx * bpp >> 3; | |
908 | sx = 0; | |
909 | } | |
25985edc | 910 | /* assume always area->height < 4096 */ |
92744dd5 KH |
911 | if (dy + area->height > 4095) { |
912 | dstbase = stride * dy; | |
913 | dy = 0; | |
914 | } | |
25985edc | 915 | /* assume always area->width < 4096 */ |
92744dd5 KH |
916 | if (dx + area->width > 4095) { |
917 | dstbase += dx * bpp >> 3; | |
918 | dx = 0; | |
919 | } | |
920 | ||
1da177e4 | 921 | if (area->sx <= area->dx) { |
3cbe9cff | 922 | /* -X */ |
1da177e4 LT |
923 | blitcmd |= BIT(14); |
924 | sx += area->width - 1; | |
925 | dx += area->width - 1; | |
926 | } | |
927 | if (area->sy <= area->dy) { | |
3cbe9cff | 928 | /* -Y */ |
1da177e4 LT |
929 | blitcmd |= BIT(15); |
930 | sy += area->height - 1; | |
931 | dy += area->height - 1; | |
932 | } | |
8af1d50f | 933 | |
92744dd5 | 934 | banshee_make_room(par, 8); |
1da177e4 | 935 | |
8af1d50f KH |
936 | tdfx_outl(par, SRCFORMAT, fmt); |
937 | tdfx_outl(par, DSTFORMAT, fmt); | |
938 | tdfx_outl(par, COMMAND_2D, blitcmd); | |
939 | tdfx_outl(par, DSTSIZE, area->width | (area->height << 16)); | |
940 | tdfx_outl(par, DSTXY, dx | (dy << 16)); | |
92744dd5 KH |
941 | tdfx_outl(par, SRCBASE, srcbase); |
942 | tdfx_outl(par, DSTBASE, dstbase); | |
8af1d50f | 943 | tdfx_outl(par, LAUNCH_2D, sx | (sy << 16)); |
1da177e4 LT |
944 | } |
945 | ||
8af1d50f | 946 | static void tdfxfb_imageblit(struct fb_info *info, const struct fb_image *image) |
1da177e4 | 947 | { |
a807f618 | 948 | struct tdfx_par *par = info->par; |
8af1d50f | 949 | int size = image->height * ((image->width * image->depth + 7) >> 3); |
1da177e4 LT |
950 | int fifo_free; |
951 | int i, stride = info->fix.line_length; | |
952 | u32 bpp = info->var.bits_per_pixel; | |
8af1d50f | 953 | u32 dstfmt = stride | ((bpp + ((bpp == 8) ? 0 : 8)) << 13); |
1da177e4 LT |
954 | u8 *chardata = (u8 *) image->data; |
955 | u32 srcfmt; | |
92744dd5 KH |
956 | u32 dx = image->dx; |
957 | u32 dy = image->dy; | |
958 | u32 dstbase = 0; | |
1da177e4 LT |
959 | |
960 | if (image->depth != 1) { | |
3cbe9cff KH |
961 | #ifdef BROKEN_CODE |
962 | banshee_make_room(par, 6 + ((size + 3) >> 2)); | |
963 | srcfmt = stride | ((bpp + ((bpp == 8) ? 0 : 8)) << 13) | | |
964 | 0x400000; | |
965 | #else | |
1da177e4 | 966 | cfb_imageblit(info, image); |
3cbe9cff | 967 | #endif |
1da177e4 | 968 | return; |
92744dd5 KH |
969 | } |
970 | banshee_make_room(par, 9); | |
971 | switch (info->fix.visual) { | |
972 | case FB_VISUAL_PSEUDOCOLOR: | |
973 | tdfx_outl(par, COLORFORE, image->fg_color); | |
974 | tdfx_outl(par, COLORBACK, image->bg_color); | |
975 | break; | |
976 | case FB_VISUAL_TRUECOLOR: | |
977 | default: | |
978 | tdfx_outl(par, COLORFORE, | |
979 | par->palette[image->fg_color]); | |
980 | tdfx_outl(par, COLORBACK, | |
981 | par->palette[image->bg_color]); | |
982 | } | |
1da177e4 | 983 | #ifdef __BIG_ENDIAN |
92744dd5 | 984 | srcfmt = 0x400000 | BIT(20); |
1da177e4 | 985 | #else |
92744dd5 | 986 | srcfmt = 0x400000; |
1da177e4 | 987 | #endif |
25985edc | 988 | /* assume always image->height < 4096 */ |
92744dd5 KH |
989 | if (dy + image->height > 4095) { |
990 | dstbase = stride * dy; | |
991 | dy = 0; | |
992 | } | |
25985edc | 993 | /* assume always image->width < 4096 */ |
92744dd5 KH |
994 | if (dx + image->width > 4095) { |
995 | dstbase += dx * bpp >> 3; | |
996 | dx = 0; | |
8af1d50f | 997 | } |
1da177e4 | 998 | |
92744dd5 | 999 | tdfx_outl(par, DSTBASE, dstbase); |
8af1d50f | 1000 | tdfx_outl(par, SRCXY, 0); |
92744dd5 | 1001 | tdfx_outl(par, DSTXY, dx | (dy << 16)); |
3cbe9cff KH |
1002 | tdfx_outl(par, COMMAND_2D, |
1003 | COMMAND_2D_H2S_BITBLT | (TDFX_ROP_COPY << 24)); | |
8af1d50f KH |
1004 | tdfx_outl(par, SRCFORMAT, srcfmt); |
1005 | tdfx_outl(par, DSTFORMAT, dstfmt); | |
1006 | tdfx_outl(par, DSTSIZE, image->width | (image->height << 16)); | |
1da177e4 LT |
1007 | |
1008 | /* A count of how many free FIFO entries we've requested. | |
1009 | * When this goes negative, we need to request more. */ | |
1010 | fifo_free = 0; | |
1011 | ||
8af1d50f KH |
1012 | /* Send four bytes at a time of data */ |
1013 | for (i = (size >> 2); i > 0; i--) { | |
1014 | if (--fifo_free < 0) { | |
1015 | fifo_free = 31; | |
1016 | banshee_make_room(par, fifo_free); | |
1da177e4 | 1017 | } |
3cbe9cff | 1018 | tdfx_outl(par, LAUNCH_2D, *(u32 *)chardata); |
8af1d50f KH |
1019 | chardata += 4; |
1020 | } | |
1da177e4 | 1021 | |
8af1d50f KH |
1022 | /* Send the leftovers now */ |
1023 | banshee_make_room(par, 3); | |
4f05b53b | 1024 | switch (size % 4) { |
8af1d50f KH |
1025 | case 0: |
1026 | break; | |
1027 | case 1: | |
1028 | tdfx_outl(par, LAUNCH_2D, *chardata); | |
1029 | break; | |
1030 | case 2: | |
3cbe9cff | 1031 | tdfx_outl(par, LAUNCH_2D, *(u16 *)chardata); |
8af1d50f KH |
1032 | break; |
1033 | case 3: | |
1034 | tdfx_outl(par, LAUNCH_2D, | |
3cbe9cff | 1035 | *(u16 *)chardata | (chardata[3] << 24)); |
8af1d50f | 1036 | break; |
1da177e4 LT |
1037 | } |
1038 | } | |
1039 | #endif /* CONFIG_FB_3DFX_ACCEL */ | |
1040 | ||
1da177e4 LT |
1041 | static int tdfxfb_cursor(struct fb_info *info, struct fb_cursor *cursor) |
1042 | { | |
a807f618 | 1043 | struct tdfx_par *par = info->par; |
90b0f085 KH |
1044 | u32 vidcfg; |
1045 | ||
1046 | if (!hwcursor) | |
1047 | return -EINVAL; /* just to force soft_cursor() call */ | |
1048 | ||
1049 | /* Too large of a cursor or wrong bpp :-( */ | |
1050 | if (cursor->image.width > 64 || | |
1051 | cursor->image.height > 64 || | |
1052 | cursor->image.depth > 1) | |
1053 | return -EINVAL; | |
1054 | ||
1055 | vidcfg = tdfx_inl(par, VIDPROCCFG); | |
1056 | if (cursor->enable) | |
1057 | tdfx_outl(par, VIDPROCCFG, vidcfg | VIDCFG_HWCURSOR_ENABLE); | |
1058 | else | |
1059 | tdfx_outl(par, VIDPROCCFG, vidcfg & ~VIDCFG_HWCURSOR_ENABLE); | |
1da177e4 LT |
1060 | |
1061 | /* | |
8af1d50f | 1062 | * If the cursor is not be changed this means either we want the |
1da177e4 | 1063 | * current cursor state (if enable is set) or we want to query what |
8af1d50f KH |
1064 | * we can do with the cursor (if enable is not set) |
1065 | */ | |
1066 | if (!cursor->set) | |
1067 | return 0; | |
1da177e4 | 1068 | |
1da177e4 | 1069 | /* fix cursor color - XFree86 forgets to restore it properly */ |
90b0f085 KH |
1070 | if (cursor->set & FB_CUR_SETCMAP) { |
1071 | struct fb_cmap cmap = info->cmap; | |
1072 | u32 bg_idx = cursor->image.bg_color; | |
1073 | u32 fg_idx = cursor->image.fg_color; | |
1da177e4 LT |
1074 | unsigned long bg_color, fg_color; |
1075 | ||
90b0f085 KH |
1076 | fg_color = (((u32)cmap.red[fg_idx] & 0xff00) << 8) | |
1077 | (((u32)cmap.green[fg_idx] & 0xff00) << 0) | | |
1078 | (((u32)cmap.blue[fg_idx] & 0xff00) >> 8); | |
1079 | bg_color = (((u32)cmap.red[bg_idx] & 0xff00) << 8) | | |
1080 | (((u32)cmap.green[bg_idx] & 0xff00) << 0) | | |
1081 | (((u32)cmap.blue[bg_idx] & 0xff00) >> 8); | |
1da177e4 LT |
1082 | banshee_make_room(par, 2); |
1083 | tdfx_outl(par, HWCURC0, bg_color); | |
1084 | tdfx_outl(par, HWCURC1, fg_color); | |
1da177e4 LT |
1085 | } |
1086 | ||
90b0f085 KH |
1087 | if (cursor->set & FB_CUR_SETPOS) { |
1088 | int x = cursor->image.dx; | |
1089 | int y = cursor->image.dy - info->var.yoffset; | |
1da177e4 | 1090 | |
1da177e4 LT |
1091 | x += 63; |
1092 | y += 63; | |
1da177e4 LT |
1093 | banshee_make_room(par, 1); |
1094 | tdfx_outl(par, HWCURLOC, (y << 16) + x); | |
1da177e4 | 1095 | } |
90b0f085 | 1096 | if (cursor->set & (FB_CUR_SETIMAGE | FB_CUR_SETSHAPE)) { |
1da177e4 | 1097 | /* |
8af1d50f | 1098 | * Voodoo 3 and above cards use 2 monochrome cursor patterns. |
1da177e4 LT |
1099 | * The reason is so the card can fetch 8 words at a time |
1100 | * and are stored on chip for use for the next 8 scanlines. | |
1101 | * This reduces the number of times for access to draw the | |
1102 | * cursor for each screen refresh. | |
1103 | * Each pattern is a bitmap of 64 bit wide and 64 bit high | |
90b0f085 | 1104 | * (total of 8192 bits or 1024 bytes). The two patterns are |
1da177e4 LT |
1105 | * stored in such a way that pattern 0 always resides in the |
1106 | * lower half (least significant 64 bits) of a 128 bit word | |
1107 | * and pattern 1 the upper half. If you examine the data of | |
1108 | * the cursor image the graphics card uses then from the | |
25985edc | 1109 | * beginning you see line one of pattern 0, line one of |
1da177e4 LT |
1110 | * pattern 1, line two of pattern 0, line two of pattern 1, |
1111 | * etc etc. The linear stride for the cursor is always 16 bytes | |
1112 | * (128 bits) which is the maximum cursor width times two for | |
1113 | * the two monochrome patterns. | |
1114 | */ | |
90b0f085 KH |
1115 | u8 __iomem *cursorbase = info->screen_base + info->fix.smem_len; |
1116 | u8 *bitmap = (u8 *)cursor->image.data; | |
1117 | u8 *mask = (u8 *)cursor->mask; | |
1118 | int i; | |
1119 | ||
1120 | fb_memset(cursorbase, 0, 1024); | |
1121 | ||
1122 | for (i = 0; i < cursor->image.height; i++) { | |
1123 | int h = 0; | |
1124 | int j = (cursor->image.width + 7) >> 3; | |
1125 | ||
1126 | for (; j > 0; j--) { | |
1127 | u8 data = *mask ^ *bitmap; | |
1128 | if (cursor->rop == ROP_COPY) | |
1129 | data = *mask & *bitmap; | |
1130 | /* Pattern 0. Copy the cursor mask to it */ | |
1131 | fb_writeb(*mask, cursorbase + h); | |
1132 | mask++; | |
1133 | /* Pattern 1. Copy the cursor bitmap to it */ | |
1134 | fb_writeb(data, cursorbase + h + 8); | |
1135 | bitmap++; | |
1136 | h++; | |
1da177e4 | 1137 | } |
90b0f085 | 1138 | cursorbase += 16; |
1da177e4 LT |
1139 | } |
1140 | } | |
1da177e4 LT |
1141 | return 0; |
1142 | } | |
1da177e4 | 1143 | |
8af1d50f KH |
1144 | static struct fb_ops tdfxfb_ops = { |
1145 | .owner = THIS_MODULE, | |
1146 | .fb_check_var = tdfxfb_check_var, | |
1147 | .fb_set_par = tdfxfb_set_par, | |
1148 | .fb_setcolreg = tdfxfb_setcolreg, | |
1149 | .fb_blank = tdfxfb_blank, | |
1150 | .fb_pan_display = tdfxfb_pan_display, | |
1151 | .fb_sync = banshee_wait_idle, | |
90b0f085 | 1152 | .fb_cursor = tdfxfb_cursor, |
8af1d50f KH |
1153 | #ifdef CONFIG_FB_3DFX_ACCEL |
1154 | .fb_fillrect = tdfxfb_fillrect, | |
1155 | .fb_copyarea = tdfxfb_copyarea, | |
1156 | .fb_imageblit = tdfxfb_imageblit, | |
1157 | #else | |
1158 | .fb_fillrect = cfb_fillrect, | |
1159 | .fb_copyarea = cfb_copyarea, | |
1160 | .fb_imageblit = cfb_imageblit, | |
1161 | #endif | |
1162 | }; | |
1163 | ||
feff3880 KH |
1164 | #ifdef CONFIG_FB_3DFX_I2C |
1165 | /* The voo GPIO registers don't have individual masks for each bit | |
1166 | so we always have to read before writing. */ | |
1167 | ||
1168 | static void tdfxfb_i2c_setscl(void *data, int val) | |
1169 | { | |
1170 | struct tdfxfb_i2c_chan *chan = data; | |
1171 | struct tdfx_par *par = chan->par; | |
1172 | unsigned int r; | |
1173 | ||
1174 | r = tdfx_inl(par, VIDSERPARPORT); | |
1175 | if (val) | |
1176 | r |= I2C_SCL_OUT; | |
1177 | else | |
1178 | r &= ~I2C_SCL_OUT; | |
1179 | tdfx_outl(par, VIDSERPARPORT, r); | |
1180 | tdfx_inl(par, VIDSERPARPORT); /* flush posted write */ | |
1181 | } | |
1182 | ||
1183 | static void tdfxfb_i2c_setsda(void *data, int val) | |
1184 | { | |
1185 | struct tdfxfb_i2c_chan *chan = data; | |
1186 | struct tdfx_par *par = chan->par; | |
1187 | unsigned int r; | |
1188 | ||
1189 | r = tdfx_inl(par, VIDSERPARPORT); | |
1190 | if (val) | |
1191 | r |= I2C_SDA_OUT; | |
1192 | else | |
1193 | r &= ~I2C_SDA_OUT; | |
1194 | tdfx_outl(par, VIDSERPARPORT, r); | |
1195 | tdfx_inl(par, VIDSERPARPORT); /* flush posted write */ | |
1196 | } | |
1197 | ||
1198 | /* The GPIO pins are open drain, so the pins always remain outputs. | |
1199 | We rely on the i2c-algo-bit routines to set the pins high before | |
1200 | reading the input from other chips. */ | |
1201 | ||
1202 | static int tdfxfb_i2c_getscl(void *data) | |
1203 | { | |
1204 | struct tdfxfb_i2c_chan *chan = data; | |
1205 | struct tdfx_par *par = chan->par; | |
1206 | ||
1207 | return (0 != (tdfx_inl(par, VIDSERPARPORT) & I2C_SCL_IN)); | |
1208 | } | |
1209 | ||
1210 | static int tdfxfb_i2c_getsda(void *data) | |
1211 | { | |
1212 | struct tdfxfb_i2c_chan *chan = data; | |
1213 | struct tdfx_par *par = chan->par; | |
1214 | ||
1215 | return (0 != (tdfx_inl(par, VIDSERPARPORT) & I2C_SDA_IN)); | |
1216 | } | |
1217 | ||
1218 | static void tdfxfb_ddc_setscl(void *data, int val) | |
1219 | { | |
1220 | struct tdfxfb_i2c_chan *chan = data; | |
1221 | struct tdfx_par *par = chan->par; | |
1222 | unsigned int r; | |
1223 | ||
1224 | r = tdfx_inl(par, VIDSERPARPORT); | |
1225 | if (val) | |
1226 | r |= DDC_SCL_OUT; | |
1227 | else | |
1228 | r &= ~DDC_SCL_OUT; | |
1229 | tdfx_outl(par, VIDSERPARPORT, r); | |
1230 | tdfx_inl(par, VIDSERPARPORT); /* flush posted write */ | |
1231 | } | |
1232 | ||
1233 | static void tdfxfb_ddc_setsda(void *data, int val) | |
1234 | { | |
1235 | struct tdfxfb_i2c_chan *chan = data; | |
1236 | struct tdfx_par *par = chan->par; | |
1237 | unsigned int r; | |
1238 | ||
1239 | r = tdfx_inl(par, VIDSERPARPORT); | |
1240 | if (val) | |
1241 | r |= DDC_SDA_OUT; | |
1242 | else | |
1243 | r &= ~DDC_SDA_OUT; | |
1244 | tdfx_outl(par, VIDSERPARPORT, r); | |
1245 | tdfx_inl(par, VIDSERPARPORT); /* flush posted write */ | |
1246 | } | |
1247 | ||
1248 | static int tdfxfb_ddc_getscl(void *data) | |
1249 | { | |
1250 | struct tdfxfb_i2c_chan *chan = data; | |
1251 | struct tdfx_par *par = chan->par; | |
1252 | ||
1253 | return (0 != (tdfx_inl(par, VIDSERPARPORT) & DDC_SCL_IN)); | |
1254 | } | |
1255 | ||
1256 | static int tdfxfb_ddc_getsda(void *data) | |
1257 | { | |
1258 | struct tdfxfb_i2c_chan *chan = data; | |
1259 | struct tdfx_par *par = chan->par; | |
1260 | ||
1261 | return (0 != (tdfx_inl(par, VIDSERPARPORT) & DDC_SDA_IN)); | |
1262 | } | |
1263 | ||
48c68c4f GKH |
1264 | static int tdfxfb_setup_ddc_bus(struct tdfxfb_i2c_chan *chan, const char *name, |
1265 | struct device *dev) | |
feff3880 KH |
1266 | { |
1267 | int rc; | |
1268 | ||
1269 | strlcpy(chan->adapter.name, name, sizeof(chan->adapter.name)); | |
1270 | chan->adapter.owner = THIS_MODULE; | |
1271 | chan->adapter.class = I2C_CLASS_DDC; | |
1272 | chan->adapter.algo_data = &chan->algo; | |
1273 | chan->adapter.dev.parent = dev; | |
1274 | chan->algo.setsda = tdfxfb_ddc_setsda; | |
1275 | chan->algo.setscl = tdfxfb_ddc_setscl; | |
1276 | chan->algo.getsda = tdfxfb_ddc_getsda; | |
1277 | chan->algo.getscl = tdfxfb_ddc_getscl; | |
1278 | chan->algo.udelay = 10; | |
1279 | chan->algo.timeout = msecs_to_jiffies(500); | |
1280 | chan->algo.data = chan; | |
1281 | ||
1282 | i2c_set_adapdata(&chan->adapter, chan); | |
1283 | ||
1284 | rc = i2c_bit_add_bus(&chan->adapter); | |
1285 | if (rc == 0) | |
1286 | DPRINTK("I2C bus %s registered.\n", name); | |
1287 | else | |
1288 | chan->par = NULL; | |
1289 | ||
1290 | return rc; | |
1291 | } | |
1292 | ||
48c68c4f GKH |
1293 | static int tdfxfb_setup_i2c_bus(struct tdfxfb_i2c_chan *chan, const char *name, |
1294 | struct device *dev) | |
feff3880 KH |
1295 | { |
1296 | int rc; | |
1297 | ||
1298 | strlcpy(chan->adapter.name, name, sizeof(chan->adapter.name)); | |
1299 | chan->adapter.owner = THIS_MODULE; | |
feff3880 KH |
1300 | chan->adapter.algo_data = &chan->algo; |
1301 | chan->adapter.dev.parent = dev; | |
1302 | chan->algo.setsda = tdfxfb_i2c_setsda; | |
1303 | chan->algo.setscl = tdfxfb_i2c_setscl; | |
1304 | chan->algo.getsda = tdfxfb_i2c_getsda; | |
1305 | chan->algo.getscl = tdfxfb_i2c_getscl; | |
1306 | chan->algo.udelay = 10; | |
1307 | chan->algo.timeout = msecs_to_jiffies(500); | |
1308 | chan->algo.data = chan; | |
1309 | ||
1310 | i2c_set_adapdata(&chan->adapter, chan); | |
1311 | ||
1312 | rc = i2c_bit_add_bus(&chan->adapter); | |
1313 | if (rc == 0) | |
1314 | DPRINTK("I2C bus %s registered.\n", name); | |
1315 | else | |
1316 | chan->par = NULL; | |
1317 | ||
1318 | return rc; | |
1319 | } | |
1320 | ||
48c68c4f | 1321 | static void tdfxfb_create_i2c_busses(struct fb_info *info) |
feff3880 KH |
1322 | { |
1323 | struct tdfx_par *par = info->par; | |
1324 | ||
1325 | tdfx_outl(par, VIDINFORMAT, 0x8160); | |
1326 | tdfx_outl(par, VIDSERPARPORT, 0xcffc0020); | |
1327 | ||
1328 | par->chan[0].par = par; | |
1329 | par->chan[1].par = par; | |
1330 | ||
1331 | tdfxfb_setup_ddc_bus(&par->chan[0], "Voodoo3-DDC", info->dev); | |
1332 | tdfxfb_setup_i2c_bus(&par->chan[1], "Voodoo3-I2C", info->dev); | |
1333 | } | |
1334 | ||
1335 | static void tdfxfb_delete_i2c_busses(struct tdfx_par *par) | |
1336 | { | |
1337 | if (par->chan[0].par) | |
1338 | i2c_del_adapter(&par->chan[0].adapter); | |
1339 | par->chan[0].par = NULL; | |
1340 | ||
1341 | if (par->chan[1].par) | |
1342 | i2c_del_adapter(&par->chan[1].adapter); | |
1343 | par->chan[1].par = NULL; | |
1344 | } | |
215059d2 KH |
1345 | |
1346 | static int tdfxfb_probe_i2c_connector(struct tdfx_par *par, | |
1347 | struct fb_monspecs *specs) | |
1348 | { | |
1349 | u8 *edid = NULL; | |
1350 | ||
1351 | DPRINTK("Probe DDC Bus\n"); | |
1352 | if (par->chan[0].par) | |
1353 | edid = fb_ddc_read(&par->chan[0].adapter); | |
1354 | ||
1355 | if (edid) { | |
1356 | fb_edid_to_monspecs(edid, specs); | |
1357 | kfree(edid); | |
1358 | return 0; | |
1359 | } | |
1360 | return 1; | |
1361 | } | |
feff3880 KH |
1362 | #endif /* CONFIG_FB_3DFX_I2C */ |
1363 | ||
1da177e4 LT |
1364 | /** |
1365 | * tdfxfb_probe - Device Initializiation | |
1366 | * | |
1367 | * @pdev: PCI Device to initialize | |
1368 | * @id: PCI Device ID | |
1369 | * | |
1370 | * Initializes and allocates resources for PCI device @pdev. | |
1371 | * | |
1372 | */ | |
48c68c4f | 1373 | static int tdfxfb_probe(struct pci_dev *pdev, const struct pci_device_id *id) |
1da177e4 LT |
1374 | { |
1375 | struct tdfx_par *default_par; | |
1376 | struct fb_info *info; | |
a807f618 | 1377 | int err, lpitch; |
215059d2 KH |
1378 | struct fb_monspecs *specs; |
1379 | bool found; | |
1da177e4 | 1380 | |
3cbe9cff KH |
1381 | err = pci_enable_device(pdev); |
1382 | if (err) { | |
1383 | printk(KERN_ERR "tdfxfb: Can't enable pdev: %d\n", err); | |
1da177e4 LT |
1384 | return err; |
1385 | } | |
1386 | ||
a807f618 | 1387 | info = framebuffer_alloc(sizeof(struct tdfx_par), &pdev->dev); |
1da177e4 | 1388 | |
a807f618 AD |
1389 | if (!info) |
1390 | return -ENOMEM; | |
8af1d50f | 1391 | |
1da177e4 | 1392 | default_par = info->par; |
3b25613c | 1393 | info->fix = tdfx_fix; |
8af1d50f | 1394 | |
1da177e4 LT |
1395 | /* Configure the default fb_fix_screeninfo first */ |
1396 | switch (pdev->device) { | |
8af1d50f | 1397 | case PCI_DEVICE_ID_3DFX_BANSHEE: |
3b25613c | 1398 | strcpy(info->fix.id, "3Dfx Banshee"); |
8af1d50f KH |
1399 | default_par->max_pixclock = BANSHEE_MAX_PIXCLOCK; |
1400 | break; | |
1401 | case PCI_DEVICE_ID_3DFX_VOODOO3: | |
3b25613c | 1402 | strcpy(info->fix.id, "3Dfx Voodoo3"); |
8af1d50f KH |
1403 | default_par->max_pixclock = VOODOO3_MAX_PIXCLOCK; |
1404 | break; | |
1405 | case PCI_DEVICE_ID_3DFX_VOODOO5: | |
3b25613c | 1406 | strcpy(info->fix.id, "3Dfx Voodoo5"); |
8af1d50f KH |
1407 | default_par->max_pixclock = VOODOO5_MAX_PIXCLOCK; |
1408 | break; | |
1da177e4 LT |
1409 | } |
1410 | ||
3b25613c KH |
1411 | info->fix.mmio_start = pci_resource_start(pdev, 0); |
1412 | info->fix.mmio_len = pci_resource_len(pdev, 0); | |
1413 | if (!request_mem_region(info->fix.mmio_start, info->fix.mmio_len, | |
92744dd5 | 1414 | "tdfx regbase")) { |
3cbe9cff | 1415 | printk(KERN_ERR "tdfxfb: Can't reserve regbase\n"); |
92744dd5 KH |
1416 | goto out_err; |
1417 | } | |
1418 | ||
8af1d50f | 1419 | default_par->regbase_virt = |
3b25613c | 1420 | ioremap_nocache(info->fix.mmio_start, info->fix.mmio_len); |
1da177e4 | 1421 | if (!default_par->regbase_virt) { |
3cbe9cff | 1422 | printk(KERN_ERR "fb: Can't remap %s register area.\n", |
3b25613c | 1423 | info->fix.id); |
92744dd5 | 1424 | goto out_err_regbase; |
8af1d50f | 1425 | } |
1da177e4 | 1426 | |
3b25613c KH |
1427 | info->fix.smem_start = pci_resource_start(pdev, 1); |
1428 | info->fix.smem_len = do_lfb_size(default_par, pdev->device); | |
1429 | if (!info->fix.smem_len) { | |
1430 | printk(KERN_ERR "fb: Can't count %s memory.\n", info->fix.id); | |
92744dd5 | 1431 | goto out_err_regbase; |
1da177e4 LT |
1432 | } |
1433 | ||
3b25613c | 1434 | if (!request_mem_region(info->fix.smem_start, |
8af1d50f | 1435 | pci_resource_len(pdev, 1), "tdfx smem")) { |
3cbe9cff | 1436 | printk(KERN_ERR "tdfxfb: Can't reserve smem\n"); |
92744dd5 | 1437 | goto out_err_regbase; |
1da177e4 LT |
1438 | } |
1439 | ||
cc9866eb LR |
1440 | info->screen_base = ioremap_wc(info->fix.smem_start, |
1441 | info->fix.smem_len); | |
1da177e4 | 1442 | if (!info->screen_base) { |
3cbe9cff | 1443 | printk(KERN_ERR "fb: Can't remap %s framebuffer.\n", |
3b25613c | 1444 | info->fix.id); |
92744dd5 | 1445 | goto out_err_screenbase; |
1da177e4 LT |
1446 | } |
1447 | ||
1448 | default_par->iobase = pci_resource_start(pdev, 2); | |
8af1d50f | 1449 | |
1da177e4 | 1450 | if (!request_region(pci_resource_start(pdev, 2), |
8af1d50f | 1451 | pci_resource_len(pdev, 2), "tdfx iobase")) { |
3cbe9cff | 1452 | printk(KERN_ERR "tdfxfb: Can't reserve iobase\n"); |
92744dd5 | 1453 | goto out_err_screenbase; |
1da177e4 LT |
1454 | } |
1455 | ||
3b25613c KH |
1456 | printk(KERN_INFO "fb: %s memory = %dK\n", info->fix.id, |
1457 | info->fix.smem_len >> 10); | |
1da177e4 | 1458 | |
0960bd3d | 1459 | if (!nomtrr) |
cc9866eb LR |
1460 | default_par->wc_cookie= arch_phys_wc_add(info->fix.smem_start, |
1461 | info->fix.smem_len); | |
0960bd3d | 1462 | |
3b25613c KH |
1463 | info->fix.ypanstep = nopan ? 0 : 1; |
1464 | info->fix.ywrapstep = nowrap ? 0 : 1; | |
8af1d50f | 1465 | |
1da177e4 | 1466 | info->fbops = &tdfxfb_ops; |
a807f618 | 1467 | info->pseudo_palette = default_par->palette; |
1da177e4 LT |
1468 | info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN; |
1469 | #ifdef CONFIG_FB_3DFX_ACCEL | |
3cbe9cff | 1470 | info->flags |= FBINFO_HWACCEL_FILLRECT | |
92744dd5 KH |
1471 | FBINFO_HWACCEL_COPYAREA | |
1472 | FBINFO_HWACCEL_IMAGEBLIT | | |
1473 | FBINFO_READS_FAST; | |
1da177e4 | 1474 | #endif |
90b0f085 KH |
1475 | /* reserve 8192 bits for cursor */ |
1476 | /* the 2.4 driver says PAGE_MASK boundary is not enough for Voodoo4 */ | |
1477 | if (hwcursor) | |
1478 | info->fix.smem_len = (info->fix.smem_len - 1024) & | |
1479 | (PAGE_MASK << 1); | |
215059d2 KH |
1480 | specs = &info->monspecs; |
1481 | found = false; | |
1482 | info->var.bits_per_pixel = 8; | |
feff3880 KH |
1483 | #ifdef CONFIG_FB_3DFX_I2C |
1484 | tdfxfb_create_i2c_busses(info); | |
215059d2 KH |
1485 | err = tdfxfb_probe_i2c_connector(default_par, specs); |
1486 | ||
1487 | if (!err) { | |
1488 | if (specs->modedb == NULL) | |
1489 | DPRINTK("Unable to get Mode Database\n"); | |
1490 | else { | |
1491 | const struct fb_videomode *m; | |
1492 | ||
1493 | fb_videomode_to_modelist(specs->modedb, | |
1494 | specs->modedb_len, | |
1495 | &info->modelist); | |
1496 | m = fb_find_best_display(specs, &info->modelist); | |
1497 | if (m) { | |
1498 | fb_videomode_to_var(&info->var, m); | |
1499 | /* fill all other info->var's fields */ | |
1500 | if (tdfxfb_check_var(&info->var, info) < 0) | |
1501 | info->var = tdfx_var; | |
1502 | else | |
1503 | found = true; | |
1504 | } | |
1505 | } | |
1506 | } | |
feff3880 | 1507 | #endif |
215059d2 | 1508 | if (!mode_option && !found) |
1da177e4 | 1509 | mode_option = "640x480@60"; |
8af1d50f | 1510 | |
215059d2 KH |
1511 | if (mode_option) { |
1512 | err = fb_find_mode(&info->var, info, mode_option, | |
1513 | specs->modedb, specs->modedb_len, | |
1514 | NULL, info->var.bits_per_pixel); | |
1515 | if (!err || err == 4) | |
1516 | info->var = tdfx_var; | |
1517 | } | |
1518 | ||
1519 | if (found) { | |
1520 | fb_destroy_modedb(specs->modedb); | |
1521 | specs->modedb = NULL; | |
1522 | } | |
1da177e4 LT |
1523 | |
1524 | /* maximize virtual vertical length */ | |
1525 | lpitch = info->var.xres_virtual * ((info->var.bits_per_pixel + 7) >> 3); | |
8af1d50f | 1526 | info->var.yres_virtual = info->fix.smem_len / lpitch; |
1da177e4 | 1527 | if (info->var.yres_virtual < info->var.yres) |
92744dd5 | 1528 | goto out_err_iobase; |
1da177e4 LT |
1529 | |
1530 | if (fb_alloc_cmap(&info->cmap, 256, 0) < 0) { | |
3cbe9cff | 1531 | printk(KERN_ERR "tdfxfb: Can't allocate color map\n"); |
92744dd5 | 1532 | goto out_err_iobase; |
1da177e4 LT |
1533 | } |
1534 | ||
1535 | if (register_framebuffer(info) < 0) { | |
3cbe9cff | 1536 | printk(KERN_ERR "tdfxfb: can't register framebuffer\n"); |
1da177e4 | 1537 | fb_dealloc_cmap(&info->cmap); |
92744dd5 | 1538 | goto out_err_iobase; |
1da177e4 LT |
1539 | } |
1540 | /* | |
1541 | * Our driver data | |
1542 | */ | |
1543 | pci_set_drvdata(pdev, info); | |
8af1d50f | 1544 | return 0; |
1da177e4 | 1545 | |
92744dd5 | 1546 | out_err_iobase: |
feff3880 KH |
1547 | #ifdef CONFIG_FB_3DFX_I2C |
1548 | tdfxfb_delete_i2c_busses(default_par); | |
1549 | #endif | |
cc9866eb | 1550 | arch_phys_wc_del(default_par->wc_cookie); |
26692f53 JL |
1551 | release_region(pci_resource_start(pdev, 2), |
1552 | pci_resource_len(pdev, 2)); | |
92744dd5 KH |
1553 | out_err_screenbase: |
1554 | if (info->screen_base) | |
1555 | iounmap(info->screen_base); | |
3b25613c | 1556 | release_mem_region(info->fix.smem_start, pci_resource_len(pdev, 1)); |
92744dd5 | 1557 | out_err_regbase: |
1da177e4 LT |
1558 | /* |
1559 | * Cleanup after anything that was remapped/allocated. | |
1560 | */ | |
1561 | if (default_par->regbase_virt) | |
1562 | iounmap(default_par->regbase_virt); | |
3b25613c | 1563 | release_mem_region(info->fix.mmio_start, info->fix.mmio_len); |
92744dd5 | 1564 | out_err: |
1da177e4 LT |
1565 | framebuffer_release(info); |
1566 | return -ENXIO; | |
1567 | } | |
1568 | ||
1569 | #ifndef MODULE | |
0ce85eb8 | 1570 | static void __init tdfxfb_setup(char *options) |
1da177e4 | 1571 | { |
8af1d50f | 1572 | char *this_opt; |
1da177e4 LT |
1573 | |
1574 | if (!options || !*options) | |
1575 | return; | |
1576 | ||
1577 | while ((this_opt = strsep(&options, ",")) != NULL) { | |
1578 | if (!*this_opt) | |
1579 | continue; | |
8af1d50f | 1580 | if (!strcmp(this_opt, "nopan")) { |
1da177e4 | 1581 | nopan = 1; |
8af1d50f | 1582 | } else if (!strcmp(this_opt, "nowrap")) { |
1da177e4 | 1583 | nowrap = 1; |
0960bd3d KH |
1584 | } else if (!strncmp(this_opt, "hwcursor=", 9)) { |
1585 | hwcursor = simple_strtoul(this_opt + 9, NULL, 0); | |
0960bd3d KH |
1586 | } else if (!strncmp(this_opt, "nomtrr", 6)) { |
1587 | nomtrr = 1; | |
1da177e4 LT |
1588 | } else { |
1589 | mode_option = this_opt; | |
1590 | } | |
1591 | } | |
1592 | } | |
1593 | #endif | |
1594 | ||
1595 | /** | |
1596 | * tdfxfb_remove - Device removal | |
1597 | * | |
1598 | * @pdev: PCI Device to cleanup | |
1599 | * | |
1600 | * Releases all resources allocated during the course of the driver's | |
1601 | * lifetime for the PCI device @pdev. | |
1602 | * | |
1603 | */ | |
48c68c4f | 1604 | static void tdfxfb_remove(struct pci_dev *pdev) |
1da177e4 LT |
1605 | { |
1606 | struct fb_info *info = pci_get_drvdata(pdev); | |
a807f618 | 1607 | struct tdfx_par *par = info->par; |
1da177e4 LT |
1608 | |
1609 | unregister_framebuffer(info); | |
feff3880 KH |
1610 | #ifdef CONFIG_FB_3DFX_I2C |
1611 | tdfxfb_delete_i2c_busses(par); | |
1612 | #endif | |
cc9866eb | 1613 | arch_phys_wc_del(par->wc_cookie); |
1da177e4 LT |
1614 | iounmap(par->regbase_virt); |
1615 | iounmap(info->screen_base); | |
1616 | ||
1617 | /* Clean up after reserved regions */ | |
1618 | release_region(pci_resource_start(pdev, 2), | |
1619 | pci_resource_len(pdev, 2)); | |
1620 | release_mem_region(pci_resource_start(pdev, 1), | |
1621 | pci_resource_len(pdev, 1)); | |
1622 | release_mem_region(pci_resource_start(pdev, 0), | |
1623 | pci_resource_len(pdev, 0)); | |
895d7227 | 1624 | fb_dealloc_cmap(&info->cmap); |
1da177e4 LT |
1625 | framebuffer_release(info); |
1626 | } | |
1627 | ||
1628 | static int __init tdfxfb_init(void) | |
1629 | { | |
1630 | #ifndef MODULE | |
1631 | char *option = NULL; | |
1632 | ||
1633 | if (fb_get_options("tdfxfb", &option)) | |
1634 | return -ENODEV; | |
1635 | ||
1636 | tdfxfb_setup(option); | |
1637 | #endif | |
8af1d50f | 1638 | return pci_register_driver(&tdfxfb_driver); |
1da177e4 LT |
1639 | } |
1640 | ||
1641 | static void __exit tdfxfb_exit(void) | |
1642 | { | |
8af1d50f | 1643 | pci_unregister_driver(&tdfxfb_driver); |
1da177e4 LT |
1644 | } |
1645 | ||
1646 | MODULE_AUTHOR("Hannu Mallat <hmallat@cc.hut.fi>"); | |
1647 | MODULE_DESCRIPTION("3Dfx framebuffer device driver"); | |
1648 | MODULE_LICENSE("GPL"); | |
8af1d50f | 1649 | |
90b0f085 KH |
1650 | module_param(hwcursor, int, 0644); |
1651 | MODULE_PARM_DESC(hwcursor, "Enable hardware cursor " | |
1652 | "(1=enable, 0=disable, default=1)"); | |
ea9014bc KH |
1653 | module_param(mode_option, charp, 0); |
1654 | MODULE_PARM_DESC(mode_option, "Initial video mode e.g. '648x480-8@60'"); | |
0960bd3d KH |
1655 | module_param(nomtrr, bool, 0); |
1656 | MODULE_PARM_DESC(nomtrr, "Disable MTRR support (default: enabled)"); | |
90b0f085 | 1657 | |
1da177e4 LT |
1658 | module_init(tdfxfb_init); |
1659 | module_exit(tdfxfb_exit); |