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[POWERPC] pasemi: Another IOMMU bugfix for 64K PAGE_SIZE
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / video / s3fb.c
blobd11735895a01b7830b3ad89773f7300e364f02d2
1 /*
2 * linux/drivers/video/s3fb.c -- Frame buffer device driver for S3 Trio/Virge
3 *
4 * Copyright (c) 2006-2007 Ondrej Zajicek <santiago@crfreenet.org>
5 *
6 * This file is subject to the terms and conditions of the GNU General Public
7 * License. See the file COPYING in the main directory of this archive for
8 * more details.
9 *
10 * Code is based on David Boucher's viafb (http://davesdomain.org.uk/viafb/)
11 * which is based on the code of neofb.
12 */
13
14 #include <linux/version.h>
15 #include <linux/module.h>
16 #include <linux/kernel.h>
17 #include <linux/errno.h>
18 #include <linux/string.h>
19 #include <linux/mm.h>
20 #include <linux/tty.h>
21 #include <linux/slab.h>
22 #include <linux/delay.h>
23 #include <linux/fb.h>
24 #include <linux/svga.h>
25 #include <linux/init.h>
26 #include <linux/pci.h>
27 #include <linux/console.h> /* Why should fb driver call console functions? because acquire_console_sem() */
28 #include <video/vga.h>
29
30 #ifdef CONFIG_MTRR
31 #include <asm/mtrr.h>
32 #endif
33
34 struct s3fb_info {
35 int chip, rev, mclk_freq;
36 int mtrr_reg;
37 struct vgastate state;
38 struct mutex open_lock;
39 unsigned int ref_count;
40 u32 pseudo_palette[16];
41 };
42
43
44 /* ------------------------------------------------------------------------- */
45
46 static const struct svga_fb_format s3fb_formats[] = {
47 { 0, {0, 6, 0}, {0, 6, 0}, {0, 6, 0}, {0, 0, 0}, 0,
48 FB_TYPE_TEXT, FB_AUX_TEXT_SVGA_STEP4, FB_VISUAL_PSEUDOCOLOR, 8, 16},
49 { 4, {0, 6, 0}, {0, 6, 0}, {0, 6, 0}, {0, 0, 0}, 0,
50 FB_TYPE_PACKED_PIXELS, 0, FB_VISUAL_PSEUDOCOLOR, 8, 16},
51 { 4, {0, 6, 0}, {0, 6, 0}, {0, 6, 0}, {0, 0, 0}, 1,
52 FB_TYPE_INTERLEAVED_PLANES, 1, FB_VISUAL_PSEUDOCOLOR, 8, 16},
53 { 8, {0, 6, 0}, {0, 6, 0}, {0, 6, 0}, {0, 0, 0}, 0,
54 FB_TYPE_PACKED_PIXELS, 0, FB_VISUAL_PSEUDOCOLOR, 4, 8},
55 {16, {10, 5, 0}, {5, 5, 0}, {0, 5, 0}, {0, 0, 0}, 0,
56 FB_TYPE_PACKED_PIXELS, 0, FB_VISUAL_TRUECOLOR, 2, 4},
57 {16, {11, 5, 0}, {5, 6, 0}, {0, 5, 0}, {0, 0, 0}, 0,
58 FB_TYPE_PACKED_PIXELS, 0, FB_VISUAL_TRUECOLOR, 2, 4},
59 {24, {16, 8, 0}, {8, 8, 0}, {0, 8, 0}, {0, 0, 0}, 0,
60 FB_TYPE_PACKED_PIXELS, 0, FB_VISUAL_TRUECOLOR, 1, 2},
61 {32, {16, 8, 0}, {8, 8, 0}, {0, 8, 0}, {0, 0, 0}, 0,
62 FB_TYPE_PACKED_PIXELS, 0, FB_VISUAL_TRUECOLOR, 1, 2},
63 SVGA_FORMAT_END
64 };
65
66
67 static const struct svga_pll s3_pll = {3, 129, 3, 33, 0, 3,
68 35000, 240000, 14318};
69
70 static const int s3_memsizes[] = {4096, 0, 3072, 8192, 2048, 6144, 1024, 512};
71
72 static const char * const s3_names[] = {"S3 Unknown", "S3 Trio32", "S3 Trio64", "S3 Trio64V+",
73 "S3 Trio64UV+", "S3 Trio64V2/DX", "S3 Trio64V2/GX",
74 "S3 Plato/PX", "S3 Aurora64VP", "S3 Virge",
75 "S3 Virge/VX", "S3 Virge/DX", "S3 Virge/GX",
76 "S3 Virge/GX2", "S3 Virge/GX2P", "S3 Virge/GX2P"};
77
78 #define CHIP_UNKNOWN 0x00
79 #define CHIP_732_TRIO32 0x01
80 #define CHIP_764_TRIO64 0x02
81 #define CHIP_765_TRIO64VP 0x03
82 #define CHIP_767_TRIO64UVP 0x04
83 #define CHIP_775_TRIO64V2_DX 0x05
84 #define CHIP_785_TRIO64V2_GX 0x06
85 #define CHIP_551_PLATO_PX 0x07
86 #define CHIP_M65_AURORA64VP 0x08
87 #define CHIP_325_VIRGE 0x09
88 #define CHIP_988_VIRGE_VX 0x0A
89 #define CHIP_375_VIRGE_DX 0x0B
90 #define CHIP_385_VIRGE_GX 0x0C
91 #define CHIP_356_VIRGE_GX2 0x0D
92 #define CHIP_357_VIRGE_GX2P 0x0E
93 #define CHIP_359_VIRGE_GX2P 0x0F
94
95 #define CHIP_XXX_TRIO 0x80
96 #define CHIP_XXX_TRIO64V2_DXGX 0x81
97 #define CHIP_XXX_VIRGE_DXGX 0x82
98
99 #define CHIP_UNDECIDED_FLAG 0x80
100 #define CHIP_MASK 0xFF
101
102 /* CRT timing register sets */
103
104 static const struct vga_regset s3_h_total_regs[] = {{0x00, 0, 7}, {0x5D, 0, 0}, VGA_REGSET_END};
105 static const struct vga_regset s3_h_display_regs[] = {{0x01, 0, 7}, {0x5D, 1, 1}, VGA_REGSET_END};
106 static const struct vga_regset s3_h_blank_start_regs[] = {{0x02, 0, 7}, {0x5D, 2, 2}, VGA_REGSET_END};
107 static const struct vga_regset s3_h_blank_end_regs[] = {{0x03, 0, 4}, {0x05, 7, 7}, VGA_REGSET_END};
108 static const struct vga_regset s3_h_sync_start_regs[] = {{0x04, 0, 7}, {0x5D, 4, 4}, VGA_REGSET_END};
109 static const struct vga_regset s3_h_sync_end_regs[] = {{0x05, 0, 4}, VGA_REGSET_END};
110
111 static const struct vga_regset s3_v_total_regs[] = {{0x06, 0, 7}, {0x07, 0, 0}, {0x07, 5, 5}, {0x5E, 0, 0}, VGA_REGSET_END};
112 static const struct vga_regset s3_v_display_regs[] = {{0x12, 0, 7}, {0x07, 1, 1}, {0x07, 6, 6}, {0x5E, 1, 1}, VGA_REGSET_END};
113 static const struct vga_regset s3_v_blank_start_regs[] = {{0x15, 0, 7}, {0x07, 3, 3}, {0x09, 5, 5}, {0x5E, 2, 2}, VGA_REGSET_END};
114 static const struct vga_regset s3_v_blank_end_regs[] = {{0x16, 0, 7}, VGA_REGSET_END};
115 static const struct vga_regset s3_v_sync_start_regs[] = {{0x10, 0, 7}, {0x07, 2, 2}, {0x07, 7, 7}, {0x5E, 4, 4}, VGA_REGSET_END};
116 static const struct vga_regset s3_v_sync_end_regs[] = {{0x11, 0, 3}, VGA_REGSET_END};
117
118 static const struct vga_regset s3_line_compare_regs[] = {{0x18, 0, 7}, {0x07, 4, 4}, {0x09, 6, 6}, {0x5E, 6, 6}, VGA_REGSET_END};
119 static const struct vga_regset s3_start_address_regs[] = {{0x0d, 0, 7}, {0x0c, 0, 7}, {0x31, 4, 5}, {0x51, 0, 1}, VGA_REGSET_END};
120 static const struct vga_regset s3_offset_regs[] = {{0x13, 0, 7}, {0x51, 4, 5}, VGA_REGSET_END}; /* set 0x43 bit 2 to 0 */
121
122 static const struct svga_timing_regs s3_timing_regs = {
123 s3_h_total_regs, s3_h_display_regs, s3_h_blank_start_regs,
124 s3_h_blank_end_regs, s3_h_sync_start_regs, s3_h_sync_end_regs,
125 s3_v_total_regs, s3_v_display_regs, s3_v_blank_start_regs,
126 s3_v_blank_end_regs, s3_v_sync_start_regs, s3_v_sync_end_regs,
127 };
128
129
130 /* ------------------------------------------------------------------------- */
131
132 /* Module parameters */
133
134
135 static char *mode = "640x480-8@60";
136
137 #ifdef CONFIG_MTRR
138 static int mtrr = 1;
139 #endif
140
141 static int fasttext = 1;
142
143
144 MODULE_AUTHOR("(c) 2006-2007 Ondrej Zajicek <santiago@crfreenet.org>");
145 MODULE_LICENSE("GPL");
146 MODULE_DESCRIPTION("fbdev driver for S3 Trio/Virge");
147
148 module_param(mode, charp, 0444);
149 MODULE_PARM_DESC(mode, "Default video mode ('640x480-8@60', etc)");
150
151 #ifdef CONFIG_MTRR
152 module_param(mtrr, int, 0444);
153 MODULE_PARM_DESC(mtrr, "Enable write-combining with MTRR (1=enable, 0=disable, default=1)");
154 #endif
155
156 module_param(fasttext, int, 0644);
157 MODULE_PARM_DESC(fasttext, "Enable S3 fast text mode (1=enable, 0=disable, default=1)");
158
159
160 /* ------------------------------------------------------------------------- */
161
162 /* Set font in S3 fast text mode */
163
164 static void s3fb_settile_fast(struct fb_info *info, struct fb_tilemap *map)
165 {
166 const u8 *font = map->data;
167 u8 __iomem *fb = (u8 __iomem *) info->screen_base;
168 int i, c;
169
170 if ((map->width != 8) || (map->height != 16) ||
171 (map->depth != 1) || (map->length != 256)) {
172 printk(KERN_ERR "fb%d: unsupported font parameters: width %d, height %d, depth %d, length %d\n",
173 info->node, map->width, map->height, map->depth, map->length);
174 return;
175 }
176
177 fb += 2;
178 for (i = 0; i < map->height; i++) {
179 for (c = 0; c < map->length; c++) {
180 fb_writeb(font[c * map->height + i], fb + c * 4);
181 }
182 fb += 1024;
183 }
184 }
185
186 static struct fb_tile_ops s3fb_tile_ops = {
187 .fb_settile = svga_settile,
188 .fb_tilecopy = svga_tilecopy,
189 .fb_tilefill = svga_tilefill,
190 .fb_tileblit = svga_tileblit,
191 .fb_tilecursor = svga_tilecursor,
192 .fb_get_tilemax = svga_get_tilemax,
193 };
194
195 static struct fb_tile_ops s3fb_fast_tile_ops = {
196 .fb_settile = s3fb_settile_fast,
197 .fb_tilecopy = svga_tilecopy,
198 .fb_tilefill = svga_tilefill,
199 .fb_tileblit = svga_tileblit,
200 .fb_tilecursor = svga_tilecursor,
201 .fb_get_tilemax = svga_get_tilemax,
202 };
203
204
205 /* ------------------------------------------------------------------------- */
206
207 /* image data is MSB-first, fb structure is MSB-first too */
208 static inline u32 expand_color(u32 c)
209 {
210 return ((c & 1) | ((c & 2) << 7) | ((c & 4) << 14) | ((c & 8) << 21)) * 0xFF;
211 }
212
213 /* s3fb_iplan_imageblit silently assumes that almost everything is 8-pixel aligned */
214 static void s3fb_iplan_imageblit(struct fb_info *info, const struct fb_image *image)
215 {
216 u32 fg = expand_color(image->fg_color);
217 u32 bg = expand_color(image->bg_color);
218 const u8 *src1, *src;
219 u8 __iomem *dst1;
220 u32 __iomem *dst;
221 u32 val;
222 int x, y;
223
224 src1 = image->data;
225 dst1 = info->screen_base + (image->dy * info->fix.line_length)
226 + ((image->dx / 8) * 4);
227
228 for (y = 0; y < image->height; y++) {
229 src = src1;
230 dst = (u32 __iomem *) dst1;
231 for (x = 0; x < image->width; x += 8) {
232 val = *(src++) * 0x01010101;
233 val = (val & fg) | (~val & bg);
234 fb_writel(val, dst++);
235 }
236 src1 += image->width / 8;
237 dst1 += info->fix.line_length;
238 }
239
240 }
241
242 /* s3fb_iplan_fillrect silently assumes that almost everything is 8-pixel aligned */
243 static void s3fb_iplan_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
244 {
245 u32 fg = expand_color(rect->color);
246 u8 __iomem *dst1;
247 u32 __iomem *dst;
248 int x, y;
249
250 dst1 = info->screen_base + (rect->dy * info->fix.line_length)
251 + ((rect->dx / 8) * 4);
252
253 for (y = 0; y < rect->height; y++) {
254 dst = (u32 __iomem *) dst1;
255 for (x = 0; x < rect->width; x += 8) {
256 fb_writel(fg, dst++);
257 }
258 dst1 += info->fix.line_length;
259 }
260 }
261
262
263 /* image data is MSB-first, fb structure is high-nibble-in-low-byte-first */
264 static inline u32 expand_pixel(u32 c)
265 {
266 return (((c & 1) << 24) | ((c & 2) << 27) | ((c & 4) << 14) | ((c & 8) << 17) |
267 ((c & 16) << 4) | ((c & 32) << 7) | ((c & 64) >> 6) | ((c & 128) >> 3)) * 0xF;
268 }
269
270 /* s3fb_cfb4_imageblit silently assumes that almost everything is 8-pixel aligned */
271 static void s3fb_cfb4_imageblit(struct fb_info *info, const struct fb_image *image)
272 {
273 u32 fg = image->fg_color * 0x11111111;
274 u32 bg = image->bg_color * 0x11111111;
275 const u8 *src1, *src;
276 u8 __iomem *dst1;
277 u32 __iomem *dst;
278 u32 val;
279 int x, y;
280
281 src1 = image->data;
282 dst1 = info->screen_base + (image->dy * info->fix.line_length)
283 + ((image->dx / 8) * 4);
284
285 for (y = 0; y < image->height; y++) {
286 src = src1;
287 dst = (u32 __iomem *) dst1;
288 for (x = 0; x < image->width; x += 8) {
289 val = expand_pixel(*(src++));
290 val = (val & fg) | (~val & bg);
291 fb_writel(val, dst++);
292 }
293 src1 += image->width / 8;
294 dst1 += info->fix.line_length;
295 }
296 }
297
298 static void s3fb_imageblit(struct fb_info *info, const struct fb_image *image)
299 {
300 if ((info->var.bits_per_pixel == 4) && (image->depth == 1)
301 && ((image->width % 8) == 0) && ((image->dx % 8) == 0)) {
302 if (info->fix.type == FB_TYPE_INTERLEAVED_PLANES)
303 s3fb_iplan_imageblit(info, image);
304 else
305 s3fb_cfb4_imageblit(info, image);
306 } else
307 cfb_imageblit(info, image);
308 }
309
310 static void s3fb_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
311 {
312 if ((info->var.bits_per_pixel == 4)
313 && ((rect->width % 8) == 0) && ((rect->dx % 8) == 0)
314 && (info->fix.type == FB_TYPE_INTERLEAVED_PLANES))
315 s3fb_iplan_fillrect(info, rect);
316 else
317 cfb_fillrect(info, rect);
318 }
319
320
321
322 /* ------------------------------------------------------------------------- */
323
324
325 static void s3_set_pixclock(struct fb_info *info, u32 pixclock)
326 {
327 u16 m, n, r;
328 u8 regval;
329 int rv;
330
331 rv = svga_compute_pll(&s3_pll, 1000000000 / pixclock, &m, &n, &r, info->node);
332 if (rv < 0) {
333 printk(KERN_ERR "fb%d: cannot set requested pixclock, keeping old value\n", info->node);
334 return;
335 }
336
337 /* Set VGA misc register */
338 regval = vga_r(NULL, VGA_MIS_R);
339 vga_w(NULL, VGA_MIS_W, regval | VGA_MIS_ENB_PLL_LOAD);
340
341 /* Set S3 clock registers */
342 vga_wseq(NULL, 0x12, ((n - 2) | (r << 5)));
343 vga_wseq(NULL, 0x13, m - 2);
344
345 udelay(1000);
346
347 /* Activate clock - write 0, 1, 0 to seq/15 bit 5 */
348 regval = vga_rseq (NULL, 0x15); /* | 0x80; */
349 vga_wseq(NULL, 0x15, regval & ~(1<<5));
350 vga_wseq(NULL, 0x15, regval | (1<<5));
351 vga_wseq(NULL, 0x15, regval & ~(1<<5));
352 }
353
354
355 /* Open framebuffer */
356
357 static int s3fb_open(struct fb_info *info, int user)
358 {
359 struct s3fb_info *par = info->par;
360
361 mutex_lock(&(par->open_lock));
362 if (par->ref_count == 0) {
363 memset(&(par->state), 0, sizeof(struct vgastate));
364 par->state.flags = VGA_SAVE_MODE | VGA_SAVE_FONTS | VGA_SAVE_CMAP;
365 par->state.num_crtc = 0x70;
366 par->state.num_seq = 0x20;
367 save_vga(&(par->state));
368 }
369
370 par->ref_count++;
371 mutex_unlock(&(par->open_lock));
372
373 return 0;
374 }
375
376 /* Close framebuffer */
377
378 static int s3fb_release(struct fb_info *info, int user)
379 {
380 struct s3fb_info *par = info->par;
381
382 mutex_lock(&(par->open_lock));
383 if (par->ref_count == 0) {
384 mutex_unlock(&(par->open_lock));
385 return -EINVAL;
386 }
387
388 if (par->ref_count == 1)
389 restore_vga(&(par->state));
390
391 par->ref_count--;
392 mutex_unlock(&(par->open_lock));
393
394 return 0;
395 }
396
397 /* Validate passed in var */
398
399 static int s3fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
400 {
401 struct s3fb_info *par = info->par;
402 int rv, mem, step;
403
404 /* Find appropriate format */
405 rv = svga_match_format (s3fb_formats, var, NULL);
406 if ((rv < 0) || ((par->chip == CHIP_988_VIRGE_VX) ? (rv == 7) : (rv == 6)))
407 { /* 24bpp on VIRGE VX, 32bpp on others */
408 printk(KERN_ERR "fb%d: unsupported mode requested\n", info->node);
409 return rv;
410 }
411
412 /* Do not allow to have real resoulution larger than virtual */
413 if (var->xres > var->xres_virtual)
414 var->xres_virtual = var->xres;
415
416 if (var->yres > var->yres_virtual)
417 var->yres_virtual = var->yres;
418
419 /* Round up xres_virtual to have proper alignment of lines */
420 step = s3fb_formats[rv].xresstep - 1;
421 var->xres_virtual = (var->xres_virtual+step) & ~step;
422
423 /* Check whether have enough memory */
424 mem = ((var->bits_per_pixel * var->xres_virtual) >> 3) * var->yres_virtual;
425 if (mem > info->screen_size)
426 {
427 printk(KERN_ERR "fb%d: not enough framebuffer memory (%d kB requested , %d kB available)\n",
428 info->node, mem >> 10, (unsigned int) (info->screen_size >> 10));
429 return -EINVAL;
430 }
431
432 rv = svga_check_timings (&s3_timing_regs, var, info->node);
433 if (rv < 0)
434 {
435 printk(KERN_ERR "fb%d: invalid timings requested\n", info->node);
436 return rv;
437 }
438
439 return 0;
440 }
441
442 /* Set video mode from par */
443
444 static int s3fb_set_par(struct fb_info *info)
445 {
446 struct s3fb_info *par = info->par;
447 u32 value, mode, hmul, offset_value, screen_size, multiplex;
448 u32 bpp = info->var.bits_per_pixel;
449
450 if (bpp != 0) {
451 info->fix.ypanstep = 1;
452 info->fix.line_length = (info->var.xres_virtual * bpp) / 8;
453
454 info->flags &= ~FBINFO_MISC_TILEBLITTING;
455 info->tileops = NULL;
456
457 /* in 4bpp supports 8p wide tiles only, any tiles otherwise */
458 info->pixmap.blit_x = (bpp == 4) ? (1 << (8 - 1)) : (~(u32)0);
459 info->pixmap.blit_y = ~(u32)0;
460
461 offset_value = (info->var.xres_virtual * bpp) / 64;
462 screen_size = info->var.yres_virtual * info->fix.line_length;
463 } else {
464 info->fix.ypanstep = 16;
465 info->fix.line_length = 0;
466
467 info->flags |= FBINFO_MISC_TILEBLITTING;
468 info->tileops = fasttext ? &s3fb_fast_tile_ops : &s3fb_tile_ops;
469
470 /* supports 8x16 tiles only */
471 info->pixmap.blit_x = 1 << (8 - 1);
472 info->pixmap.blit_y = 1 << (16 - 1);
473
474 offset_value = info->var.xres_virtual / 16;
475 screen_size = (info->var.xres_virtual * info->var.yres_virtual) / 64;
476 }
477
478 info->var.xoffset = 0;
479 info->var.yoffset = 0;
480 info->var.activate = FB_ACTIVATE_NOW;
481
482 /* Unlock registers */
483 vga_wcrt(NULL, 0x38, 0x48);
484 vga_wcrt(NULL, 0x39, 0xA5);
485 vga_wseq(NULL, 0x08, 0x06);
486 svga_wcrt_mask(0x11, 0x00, 0x80);
487
488 /* Blank screen and turn off sync */
489 svga_wseq_mask(0x01, 0x20, 0x20);
490 svga_wcrt_mask(0x17, 0x00, 0x80);
491
492 /* Set default values */
493 svga_set_default_gfx_regs();
494 svga_set_default_atc_regs();
495 svga_set_default_seq_regs();
496 svga_set_default_crt_regs();
497 svga_wcrt_multi(s3_line_compare_regs, 0xFFFFFFFF);
498 svga_wcrt_multi(s3_start_address_regs, 0);
499
500 /* S3 specific initialization */
501 svga_wcrt_mask(0x58, 0x10, 0x10); /* enable linear framebuffer */
502 svga_wcrt_mask(0x31, 0x08, 0x08); /* enable sequencer access to framebuffer above 256 kB */
503
504 /* svga_wcrt_mask(0x33, 0x08, 0x08); */ /* DDR ? */
505 /* svga_wcrt_mask(0x43, 0x01, 0x01); */ /* DDR ? */
506 svga_wcrt_mask(0x33, 0x00, 0x08); /* no DDR ? */
507 svga_wcrt_mask(0x43, 0x00, 0x01); /* no DDR ? */
508
509 svga_wcrt_mask(0x5D, 0x00, 0x28); // Clear strange HSlen bits
510
511 /* svga_wcrt_mask(0x58, 0x03, 0x03); */
512
513 /* svga_wcrt_mask(0x53, 0x12, 0x13); */ /* enable MMIO */
514 /* svga_wcrt_mask(0x40, 0x08, 0x08); */ /* enable write buffer */
515
516
517 /* Set the offset register */
518 pr_debug("fb%d: offset register : %d\n", info->node, offset_value);
519 svga_wcrt_multi(s3_offset_regs, offset_value);
520
521 vga_wcrt(NULL, 0x54, 0x18); /* M parameter */
522 vga_wcrt(NULL, 0x60, 0xff); /* N parameter */
523 vga_wcrt(NULL, 0x61, 0xff); /* L parameter */
524 vga_wcrt(NULL, 0x62, 0xff); /* L parameter */
525
526 vga_wcrt(NULL, 0x3A, 0x35);
527 svga_wattr(0x33, 0x00);
528
529 if (info->var.vmode & FB_VMODE_DOUBLE)
530 svga_wcrt_mask(0x09, 0x80, 0x80);
531 else
532 svga_wcrt_mask(0x09, 0x00, 0x80);
533
534 if (info->var.vmode & FB_VMODE_INTERLACED)
535 svga_wcrt_mask(0x42, 0x20, 0x20);
536 else
537 svga_wcrt_mask(0x42, 0x00, 0x20);
538
539 /* Disable hardware graphics cursor */
540 svga_wcrt_mask(0x45, 0x00, 0x01);
541 /* Disable Streams engine */
542 svga_wcrt_mask(0x67, 0x00, 0x0C);
543
544 mode = svga_match_format(s3fb_formats, &(info->var), &(info->fix));
545
546 /* S3 virge DX hack */
547 if (par->chip == CHIP_375_VIRGE_DX) {
548 vga_wcrt(NULL, 0x86, 0x80);
549 vga_wcrt(NULL, 0x90, 0x00);
550 }
551
552 /* S3 virge VX hack */
553 if (par->chip == CHIP_988_VIRGE_VX) {
554 vga_wcrt(NULL, 0x50, 0x00);
555 vga_wcrt(NULL, 0x67, 0x50);
556
557 vga_wcrt(NULL, 0x63, (mode <= 2) ? 0x90 : 0x09);
558 vga_wcrt(NULL, 0x66, 0x90);
559 }
560
561 svga_wcrt_mask(0x31, 0x00, 0x40);
562 multiplex = 0;
563 hmul = 1;
564
565 /* Set mode-specific register values */
566 switch (mode) {
567 case 0:
568 pr_debug("fb%d: text mode\n", info->node);
569 svga_set_textmode_vga_regs();
570
571 /* Set additional registers like in 8-bit mode */
572 svga_wcrt_mask(0x50, 0x00, 0x30);
573 svga_wcrt_mask(0x67, 0x00, 0xF0);
574
575 /* Disable enhanced mode */
576 svga_wcrt_mask(0x3A, 0x00, 0x30);
577
578 if (fasttext) {
579 pr_debug("fb%d: high speed text mode set\n", info->node);
580 svga_wcrt_mask(0x31, 0x40, 0x40);
581 }
582 break;
583 case 1:
584 pr_debug("fb%d: 4 bit pseudocolor\n", info->node);
585 vga_wgfx(NULL, VGA_GFX_MODE, 0x40);
586
587 /* Set additional registers like in 8-bit mode */
588 svga_wcrt_mask(0x50, 0x00, 0x30);
589 svga_wcrt_mask(0x67, 0x00, 0xF0);
590
591 /* disable enhanced mode */
592 svga_wcrt_mask(0x3A, 0x00, 0x30);
593 break;
594 case 2:
595 pr_debug("fb%d: 4 bit pseudocolor, planar\n", info->node);
596
597 /* Set additional registers like in 8-bit mode */
598 svga_wcrt_mask(0x50, 0x00, 0x30);
599 svga_wcrt_mask(0x67, 0x00, 0xF0);
600
601 /* disable enhanced mode */
602 svga_wcrt_mask(0x3A, 0x00, 0x30);
603 break;
604 case 3:
605 pr_debug("fb%d: 8 bit pseudocolor\n", info->node);
606 if (info->var.pixclock > 20000) {
607 svga_wcrt_mask(0x50, 0x00, 0x30);
608 svga_wcrt_mask(0x67, 0x00, 0xF0);
609 } else {
610 svga_wcrt_mask(0x50, 0x00, 0x30);
611 svga_wcrt_mask(0x67, 0x10, 0xF0);
612 multiplex = 1;
613 }
614 break;
615 case 4:
616 pr_debug("fb%d: 5/5/5 truecolor\n", info->node);
617 if (par->chip == CHIP_988_VIRGE_VX) {
618 if (info->var.pixclock > 20000)
619 svga_wcrt_mask(0x67, 0x20, 0xF0);
620 else
621 svga_wcrt_mask(0x67, 0x30, 0xF0);
622 } else {
623 svga_wcrt_mask(0x50, 0x10, 0x30);
624 svga_wcrt_mask(0x67, 0x30, 0xF0);
625 hmul = 2;
626 }
627 break;
628 case 5:
629 pr_debug("fb%d: 5/6/5 truecolor\n", info->node);
630 if (par->chip == CHIP_988_VIRGE_VX) {
631 if (info->var.pixclock > 20000)
632 svga_wcrt_mask(0x67, 0x40, 0xF0);
633 else
634 svga_wcrt_mask(0x67, 0x50, 0xF0);
635 } else {
636 svga_wcrt_mask(0x50, 0x10, 0x30);
637 svga_wcrt_mask(0x67, 0x50, 0xF0);
638 hmul = 2;
639 }
640 break;
641 case 6:
642 /* VIRGE VX case */
643 pr_debug("fb%d: 8/8/8 truecolor\n", info->node);
644 svga_wcrt_mask(0x67, 0xD0, 0xF0);
645 break;
646 case 7:
647 pr_debug("fb%d: 8/8/8/8 truecolor\n", info->node);
648 svga_wcrt_mask(0x50, 0x30, 0x30);
649 svga_wcrt_mask(0x67, 0xD0, 0xF0);
650 break;
651 default:
652 printk(KERN_ERR "fb%d: unsupported mode - bug\n", info->node);
653 return -EINVAL;
654 }
655
656 if (par->chip != CHIP_988_VIRGE_VX) {
657 svga_wseq_mask(0x15, multiplex ? 0x10 : 0x00, 0x10);
658 svga_wseq_mask(0x18, multiplex ? 0x80 : 0x00, 0x80);
659 }
660
661 s3_set_pixclock(info, info->var.pixclock);
662 svga_set_timings(&s3_timing_regs, &(info->var), hmul, 1,
663 (info->var.vmode & FB_VMODE_DOUBLE) ? 2 : 1,
664 (info->var.vmode & FB_VMODE_INTERLACED) ? 2 : 1,
665 hmul, info->node);
666
667 /* Set interlaced mode start/end register */
668 value = info->var.xres + info->var.left_margin + info->var.right_margin + info->var.hsync_len;
669 value = ((value * hmul) / 8) - 5;
670 vga_wcrt(NULL, 0x3C, (value + 1) / 2);
671
672 memset_io(info->screen_base, 0x00, screen_size);
673 /* Device and screen back on */
674 svga_wcrt_mask(0x17, 0x80, 0x80);
675 svga_wseq_mask(0x01, 0x00, 0x20);
676
677 return 0;
678 }
679
680 /* Set a colour register */
681
682 static int s3fb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
683 u_int transp, struct fb_info *fb)
684 {
685 switch (fb->var.bits_per_pixel) {
686 case 0:
687 case 4:
688 if (regno >= 16)
689 return -EINVAL;
690
691 if ((fb->var.bits_per_pixel == 4) &&
692 (fb->var.nonstd == 0)) {
693 outb(0xF0, VGA_PEL_MSK);
694 outb(regno*16, VGA_PEL_IW);
695 } else {
696 outb(0x0F, VGA_PEL_MSK);
697 outb(regno, VGA_PEL_IW);
698 }
699 outb(red >> 10, VGA_PEL_D);
700 outb(green >> 10, VGA_PEL_D);
701 outb(blue >> 10, VGA_PEL_D);
702 break;
703 case 8:
704 if (regno >= 256)
705 return -EINVAL;
706
707 outb(0xFF, VGA_PEL_MSK);
708 outb(regno, VGA_PEL_IW);
709 outb(red >> 10, VGA_PEL_D);
710 outb(green >> 10, VGA_PEL_D);
711 outb(blue >> 10, VGA_PEL_D);
712 break;
713 case 16:
714 if (regno >= 16)
715 return 0;
716
717 if (fb->var.green.length == 5)
718 ((u32*)fb->pseudo_palette)[regno] = ((red & 0xF800) >> 1) |
719 ((green & 0xF800) >> 6) | ((blue & 0xF800) >> 11);
720 else if (fb->var.green.length == 6)
721 ((u32*)fb->pseudo_palette)[regno] = (red & 0xF800) |
722 ((green & 0xFC00) >> 5) | ((blue & 0xF800) >> 11);
723 else return -EINVAL;
724 break;
725 case 24:
726 case 32:
727 if (regno >= 16)
728 return 0;
729
730 ((u32*)fb->pseudo_palette)[regno] = ((red & 0xFF00) << 8) |
731 (green & 0xFF00) | ((blue & 0xFF00) >> 8);
732 break;
733 default:
734 return -EINVAL;
735 }
736
737 return 0;
738 }
739
740
741 /* Set the display blanking state */
742
743 static int s3fb_blank(int blank_mode, struct fb_info *info)
744 {
745 switch (blank_mode) {
746 case FB_BLANK_UNBLANK:
747 pr_debug("fb%d: unblank\n", info->node);
748 svga_wcrt_mask(0x56, 0x00, 0x06);
749 svga_wseq_mask(0x01, 0x00, 0x20);
750 break;
751 case FB_BLANK_NORMAL:
752 pr_debug("fb%d: blank\n", info->node);
753 svga_wcrt_mask(0x56, 0x00, 0x06);
754 svga_wseq_mask(0x01, 0x20, 0x20);
755 break;
756 case FB_BLANK_HSYNC_SUSPEND:
757 pr_debug("fb%d: hsync\n", info->node);
758 svga_wcrt_mask(0x56, 0x02, 0x06);
759 svga_wseq_mask(0x01, 0x20, 0x20);
760 break;
761 case FB_BLANK_VSYNC_SUSPEND:
762 pr_debug("fb%d: vsync\n", info->node);
763 svga_wcrt_mask(0x56, 0x04, 0x06);
764 svga_wseq_mask(0x01, 0x20, 0x20);
765 break;
766 case FB_BLANK_POWERDOWN:
767 pr_debug("fb%d: sync down\n", info->node);
768 svga_wcrt_mask(0x56, 0x06, 0x06);
769 svga_wseq_mask(0x01, 0x20, 0x20);
770 break;
771 }
772
773 return 0;
774 }
775
776
777 /* Pan the display */
778
779 static int s3fb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info) {
780
781 unsigned int offset;
782
783 /* Calculate the offset */
784 if (var->bits_per_pixel == 0) {
785 offset = (var->yoffset / 16) * (var->xres_virtual / 2) + (var->xoffset / 2);
786 offset = offset >> 2;
787 } else {
788 offset = (var->yoffset * info->fix.line_length) +
789 (var->xoffset * var->bits_per_pixel / 8);
790 offset = offset >> 2;
791 }
792
793 /* Set the offset */
794 svga_wcrt_multi(s3_start_address_regs, offset);
795
796 return 0;
797 }
798
799 /* ------------------------------------------------------------------------- */
800
801 /* Frame buffer operations */
802
803 static struct fb_ops s3fb_ops = {
804 .owner = THIS_MODULE,
805 .fb_open = s3fb_open,
806 .fb_release = s3fb_release,
807 .fb_check_var = s3fb_check_var,
808 .fb_set_par = s3fb_set_par,
809 .fb_setcolreg = s3fb_setcolreg,
810 .fb_blank = s3fb_blank,
811 .fb_pan_display = s3fb_pan_display,
812 .fb_fillrect = s3fb_fillrect,
813 .fb_copyarea = cfb_copyarea,
814 .fb_imageblit = s3fb_imageblit,
815 .fb_get_caps = svga_get_caps,
816 };
817
818 /* ------------------------------------------------------------------------- */
819
820 static int __devinit s3_identification(int chip)
821 {
822 if (chip == CHIP_XXX_TRIO) {
823 u8 cr30 = vga_rcrt(NULL, 0x30);
824 u8 cr2e = vga_rcrt(NULL, 0x2e);
825 u8 cr2f = vga_rcrt(NULL, 0x2f);
826
827 if ((cr30 == 0xE0) || (cr30 == 0xE1)) {
828 if (cr2e == 0x10)
829 return CHIP_732_TRIO32;
830 if (cr2e == 0x11) {
831 if (! (cr2f & 0x40))
832 return CHIP_764_TRIO64;
833 else
834 return CHIP_765_TRIO64VP;
835 }
836 }
837 }
838
839 if (chip == CHIP_XXX_TRIO64V2_DXGX) {
840 u8 cr6f = vga_rcrt(NULL, 0x6f);
841
842 if (! (cr6f & 0x01))
843 return CHIP_775_TRIO64V2_DX;
844 else
845 return CHIP_785_TRIO64V2_GX;
846 }
847
848 if (chip == CHIP_XXX_VIRGE_DXGX) {
849 u8 cr6f = vga_rcrt(NULL, 0x6f);
850
851 if (! (cr6f & 0x01))
852 return CHIP_375_VIRGE_DX;
853 else
854 return CHIP_385_VIRGE_GX;
855 }
856
857 return CHIP_UNKNOWN;
858 }
859
860
861 /* PCI probe */
862
863 static int __devinit s3_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
864 {
865 struct fb_info *info;
866 struct s3fb_info *par;
867 int rc;
868 u8 regval, cr38, cr39;
869
870 /* Ignore secondary VGA device because there is no VGA arbitration */
871 if (! svga_primary_device(dev)) {
872 dev_info(&(dev->dev), "ignoring secondary device\n");
873 return -ENODEV;
874 }
875
876 /* Allocate and fill driver data structure */
877 info = framebuffer_alloc(sizeof(struct s3fb_info), NULL);
878 if (!info) {
879 dev_err(&(dev->dev), "cannot allocate memory\n");
880 return -ENOMEM;
881 }
882
883 par = info->par;
884 mutex_init(&par->open_lock);
885
886 info->flags = FBINFO_PARTIAL_PAN_OK | FBINFO_HWACCEL_YPAN;
887 info->fbops = &s3fb_ops;
888
889 /* Prepare PCI device */
890 rc = pci_enable_device(dev);
891 if (rc < 0) {
892 dev_err(&(dev->dev), "cannot enable PCI device\n");
893 goto err_enable_device;
894 }
895
896 rc = pci_request_regions(dev, "s3fb");
897 if (rc < 0) {
898 dev_err(&(dev->dev), "cannot reserve framebuffer region\n");
899 goto err_request_regions;
900 }
901
902
903 info->fix.smem_start = pci_resource_start(dev, 0);
904 info->fix.smem_len = pci_resource_len(dev, 0);
905
906 /* Map physical IO memory address into kernel space */
907 info->screen_base = pci_iomap(dev, 0, 0);
908 if (! info->screen_base) {
909 rc = -ENOMEM;
910 dev_err(&(dev->dev), "iomap for framebuffer failed\n");
911 goto err_iomap;
912 }
913
914 /* Unlock regs */
915 cr38 = vga_rcrt(NULL, 0x38);
916 cr39 = vga_rcrt(NULL, 0x39);
917 vga_wseq(NULL, 0x08, 0x06);
918 vga_wcrt(NULL, 0x38, 0x48);
919 vga_wcrt(NULL, 0x39, 0xA5);
920
921 /* Find how many physical memory there is on card */
922 /* 0x36 register is accessible even if other registers are locked */
923 regval = vga_rcrt(NULL, 0x36);
924 info->screen_size = s3_memsizes[regval >> 5] << 10;
925 info->fix.smem_len = info->screen_size;
926
927 par->chip = id->driver_data & CHIP_MASK;
928 par->rev = vga_rcrt(NULL, 0x2f);
929 if (par->chip & CHIP_UNDECIDED_FLAG)
930 par->chip = s3_identification(par->chip);
931
932 /* Find MCLK frequency */
933 regval = vga_rseq(NULL, 0x10);
934 par->mclk_freq = ((vga_rseq(NULL, 0x11) + 2) * 14318) / ((regval & 0x1F) + 2);
935 par->mclk_freq = par->mclk_freq >> (regval >> 5);
936
937 /* Restore locks */
938 vga_wcrt(NULL, 0x38, cr38);
939 vga_wcrt(NULL, 0x39, cr39);
940
941 strcpy(info->fix.id, s3_names [par->chip]);
942 info->fix.mmio_start = 0;
943 info->fix.mmio_len = 0;
944 info->fix.type = FB_TYPE_PACKED_PIXELS;
945 info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
946 info->fix.ypanstep = 0;
947 info->fix.accel = FB_ACCEL_NONE;
948 info->pseudo_palette = (void*) (par->pseudo_palette);
949
950 /* Prepare startup mode */
951 rc = fb_find_mode(&(info->var), info, mode, NULL, 0, NULL, 8);
952 if (! ((rc == 1) || (rc == 2))) {
953 rc = -EINVAL;
954 dev_err(&(dev->dev), "mode %s not found\n", mode);
955 goto err_find_mode;
956 }
957
958 rc = fb_alloc_cmap(&info->cmap, 256, 0);
959 if (rc < 0) {
960 dev_err(&(dev->dev), "cannot allocate colormap\n");
961 goto err_alloc_cmap;
962 }
963
964 rc = register_framebuffer(info);
965 if (rc < 0) {
966 dev_err(&(dev->dev), "cannot register framebuffer\n");
967 goto err_reg_fb;
968 }
969
970 printk(KERN_INFO "fb%d: %s on %s, %d MB RAM, %d MHz MCLK\n", info->node, info->fix.id,
971 pci_name(dev), info->fix.smem_len >> 20, (par->mclk_freq + 500) / 1000);
972
973 if (par->chip == CHIP_UNKNOWN)
974 printk(KERN_INFO "fb%d: unknown chip, CR2D=%x, CR2E=%x, CRT2F=%x, CRT30=%x\n",
975 info->node, vga_rcrt(NULL, 0x2d), vga_rcrt(NULL, 0x2e),
976 vga_rcrt(NULL, 0x2f), vga_rcrt(NULL, 0x30));
977
978 /* Record a reference to the driver data */
979 pci_set_drvdata(dev, info);
980
981 #ifdef CONFIG_MTRR
982 if (mtrr) {
983 par->mtrr_reg = -1;
984 par->mtrr_reg = mtrr_add(info->fix.smem_start, info->fix.smem_len, MTRR_TYPE_WRCOMB, 1);
985 }
986 #endif
987
988 return 0;
989
990 /* Error handling */
991 err_reg_fb:
992 fb_dealloc_cmap(&info->cmap);
993 err_alloc_cmap:
994 err_find_mode:
995 pci_iounmap(dev, info->screen_base);
996 err_iomap:
997 pci_release_regions(dev);
998 err_request_regions:
999 /* pci_disable_device(dev); */
1000 err_enable_device:
1001 framebuffer_release(info);
1002 return rc;
1003 }
1004
1005
1006 /* PCI remove */
1007
1008 static void __devexit s3_pci_remove(struct pci_dev *dev)
1009 {
1010 struct fb_info *info = pci_get_drvdata(dev);
1011
1012 if (info) {
1013
1014 #ifdef CONFIG_MTRR
1015 struct s3fb_info *par = info->par;
1016
1017 if (par->mtrr_reg >= 0) {
1018 mtrr_del(par->mtrr_reg, 0, 0);
1019 par->mtrr_reg = -1;
1020 }
1021 #endif
1022
1023 unregister_framebuffer(info);
1024 fb_dealloc_cmap(&info->cmap);
1025
1026 pci_iounmap(dev, info->screen_base);
1027 pci_release_regions(dev);
1028 /* pci_disable_device(dev); */
1029
1030 pci_set_drvdata(dev, NULL);
1031 framebuffer_release(info);
1032 }
1033 }
1034
1035 /* PCI suspend */
1036
1037 static int s3_pci_suspend(struct pci_dev* dev, pm_message_t state)
1038 {
1039 struct fb_info *info = pci_get_drvdata(dev);
1040 struct s3fb_info *par = info->par;
1041
1042 dev_info(&(dev->dev), "suspend\n");
1043
1044 acquire_console_sem();
1045 mutex_lock(&(par->open_lock));
1046
1047 if ((state.event == PM_EVENT_FREEZE) || (par->ref_count == 0)) {
1048 mutex_unlock(&(par->open_lock));
1049 release_console_sem();
1050 return 0;
1051 }
1052
1053 fb_set_suspend(info, 1);
1054
1055 pci_save_state(dev);
1056 pci_disable_device(dev);
1057 pci_set_power_state(dev, pci_choose_state(dev, state));
1058
1059 mutex_unlock(&(par->open_lock));
1060 release_console_sem();
1061
1062 return 0;
1063 }
1064
1065
1066 /* PCI resume */
1067
1068 static int s3_pci_resume(struct pci_dev* dev)
1069 {
1070 struct fb_info *info = pci_get_drvdata(dev);
1071 struct s3fb_info *par = info->par;
1072 int err;
1073
1074 dev_info(&(dev->dev), "resume\n");
1075
1076 acquire_console_sem();
1077 mutex_lock(&(par->open_lock));
1078
1079 if (par->ref_count == 0) {
1080 mutex_unlock(&(par->open_lock));
1081 release_console_sem();
1082 return 0;
1083 }
1084
1085 pci_set_power_state(dev, PCI_D0);
1086 pci_restore_state(dev);
1087 err = pci_enable_device(dev);
1088 if (err) {
1089 mutex_unlock(&(par->open_lock));
1090 release_console_sem();
1091 dev_err(&(dev->dev), "error %d enabling device for resume\n", err);
1092 return err;
1093 }
1094 pci_set_master(dev);
1095
1096 s3fb_set_par(info);
1097 fb_set_suspend(info, 0);
1098
1099 mutex_unlock(&(par->open_lock));
1100 release_console_sem();
1101
1102 return 0;
1103 }
1104
1105
1106 /* List of boards that we are trying to support */
1107
1108 static struct pci_device_id s3_devices[] __devinitdata = {
1109 {PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8810), .driver_data = CHIP_XXX_TRIO},
1110 {PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8811), .driver_data = CHIP_XXX_TRIO},
1111 {PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8812), .driver_data = CHIP_M65_AURORA64VP},
1112 {PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8814), .driver_data = CHIP_767_TRIO64UVP},
1113 {PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8901), .driver_data = CHIP_XXX_TRIO64V2_DXGX},
1114 {PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8902), .driver_data = CHIP_551_PLATO_PX},
1115
1116 {PCI_DEVICE(PCI_VENDOR_ID_S3, 0x5631), .driver_data = CHIP_325_VIRGE},
1117 {PCI_DEVICE(PCI_VENDOR_ID_S3, 0x883D), .driver_data = CHIP_988_VIRGE_VX},
1118 {PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8A01), .driver_data = CHIP_XXX_VIRGE_DXGX},
1119 {PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8A10), .driver_data = CHIP_356_VIRGE_GX2},
1120 {PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8A11), .driver_data = CHIP_357_VIRGE_GX2P},
1121 {PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8A12), .driver_data = CHIP_359_VIRGE_GX2P},
1122
1123 {0, 0, 0, 0, 0, 0, 0}
1124 };
1125
1126
1127 MODULE_DEVICE_TABLE(pci, s3_devices);
1128
1129 static struct pci_driver s3fb_pci_driver = {
1130 .name = "s3fb",
1131 .id_table = s3_devices,
1132 .probe = s3_pci_probe,
1133 .remove = __devexit_p(s3_pci_remove),
1134 .suspend = s3_pci_suspend,
1135 .resume = s3_pci_resume,
1136 };
1137
1138 /* Parse user speficied options */
1139
1140 #ifndef MODULE
1141 static int __init s3fb_setup(char *options)
1142 {
1143 char *opt;
1144
1145 if (!options || !*options)
1146 return 0;
1147
1148 while ((opt = strsep(&options, ",")) != NULL) {
1149
1150 if (!*opt)
1151 continue;
1152 #ifdef CONFIG_MTRR
1153 else if (!strncmp(opt, "mtrr:", 5))
1154 mtrr = simple_strtoul(opt + 5, NULL, 0);
1155 #endif
1156 else if (!strncmp(opt, "fasttext:", 9))
1157 fasttext = simple_strtoul(opt + 9, NULL, 0);
1158 else
1159 mode = opt;
1160 }
1161
1162 return 0;
1163 }
1164 #endif
1165
1166 /* Cleanup */
1167
1168 static void __exit s3fb_cleanup(void)
1169 {
1170 pr_debug("s3fb: cleaning up\n");
1171 pci_unregister_driver(&s3fb_pci_driver);
1172 }
1173
1174 /* Driver Initialisation */
1175
1176 static int __init s3fb_init(void)
1177 {
1178
1179 #ifndef MODULE
1180 char *option = NULL;
1181
1182 if (fb_get_options("s3fb", &option))
1183 return -ENODEV;
1184 s3fb_setup(option);
1185 #endif
1186
1187 pr_debug("s3fb: initializing\n");
1188 return pci_register_driver(&s3fb_pci_driver);
1189 }
1190
1191 /* ------------------------------------------------------------------------- */
1192
1193 /* Modularization */
1194
1195 module_init(s3fb_init);
1196 module_exit(s3fb_cleanup);
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree