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[linux.git] / drivers / video / s3fb.c
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a268422d
OZ		 1/*
2 * linux/drivers/video/s3fb.c -- Frame buffer device driver for S3 Trio/Virge
3 *
4 * Copyright (c) 2006-2007 Ondrej Zajicek <[email protected]>
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
a268422d
OZ		 14#include <linux/module.h>
15#include <linux/kernel.h>
16#include <linux/errno.h>
17#include <linux/string.h>
18#include <linux/mm.h>
19#include <linux/tty.h>
a268422d
OZ		 20#include <linux/delay.h>
21#include <linux/fb.h>
22#include <linux/svga.h>
23#include <linux/init.h>
24#include <linux/pci.h>
25#include <linux/console.h> /* Why should fb driver call console functions? because acquire_console_sem() */
26#include <video/vga.h>
27
28#ifdef CONFIG_MTRR
29#include <asm/mtrr.h>
30#endif
31
32struct s3fb_info {
33 int chip, rev, mclk_freq;
34 int mtrr_reg;
35 struct vgastate state;
36 struct mutex open_lock;
37 unsigned int ref_count;
38 u32 pseudo_palette[16];
39};
40
41
42/* ------------------------------------------------------------------------- */
43
44static const struct svga_fb_format s3fb_formats[] = {
45 { 0, {0, 6, 0}, {0, 6, 0}, {0, 6, 0}, {0, 0, 0}, 0,
46 FB_TYPE_TEXT, FB_AUX_TEXT_SVGA_STEP4, FB_VISUAL_PSEUDOCOLOR, 8, 16},
c26d7b29 47 { 4, {0, 4, 0}, {0, 4, 0}, {0, 4, 0}, {0, 0, 0}, 0,
a268422d 48 FB_TYPE_PACKED_PIXELS, 0, FB_VISUAL_PSEUDOCOLOR, 8, 16},
c26d7b29 49 { 4, {0, 4, 0}, {0, 4, 0}, {0, 4, 0}, {0, 0, 0}, 1,
a268422d 50 FB_TYPE_INTERLEAVED_PLANES, 1, FB_VISUAL_PSEUDOCOLOR, 8, 16},
c26d7b29 51 { 8, {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0}, 0,
a268422d
OZ		 52 FB_TYPE_PACKED_PIXELS, 0, FB_VISUAL_PSEUDOCOLOR, 4, 8},
53 {16, {10, 5, 0}, {5, 5, 0}, {0, 5, 0}, {0, 0, 0}, 0,
54 FB_TYPE_PACKED_PIXELS, 0, FB_VISUAL_TRUECOLOR, 2, 4},
55 {16, {11, 5, 0}, {5, 6, 0}, {0, 5, 0}, {0, 0, 0}, 0,
56 FB_TYPE_PACKED_PIXELS, 0, FB_VISUAL_TRUECOLOR, 2, 4},
57 {24, {16, 8, 0}, {8, 8, 0}, {0, 8, 0}, {0, 0, 0}, 0,
58 FB_TYPE_PACKED_PIXELS, 0, FB_VISUAL_TRUECOLOR, 1, 2},
59 {32, {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 SVGA_FORMAT_END
62};
63
64
65static const struct svga_pll s3_pll = {3, 129, 3, 33, 0, 3,
249bdbbf 66 35000, 240000, 14318};
a268422d
OZ		 67
68static const int s3_memsizes[] = {4096, 0, 3072, 8192, 2048, 6144, 1024, 512};
69
70static const char * const s3_names[] = {"S3 Unknown", "S3 Trio32", "S3 Trio64", "S3 Trio64V+",
71 "S3 Trio64UV+", "S3 Trio64V2/DX", "S3 Trio64V2/GX",
72 "S3 Plato/PX", "S3 Aurora64VP", "S3 Virge",
73 "S3 Virge/VX", "S3 Virge/DX", "S3 Virge/GX",
9966c4fe
OZ		 74 "S3 Virge/GX2", "S3 Virge/GX2P", "S3 Virge/GX2P",
75 "S3 Trio3D/1X", "S3 Trio3D/2X", "S3 Trio3D/2X"};
a268422d
OZ		 76
77#define CHIP_UNKNOWN 0x00
78#define CHIP_732_TRIO32 0x01
79#define CHIP_764_TRIO64 0x02
80#define CHIP_765_TRIO64VP 0x03
81#define CHIP_767_TRIO64UVP 0x04
82#define CHIP_775_TRIO64V2_DX 0x05
83#define CHIP_785_TRIO64V2_GX 0x06
84#define CHIP_551_PLATO_PX 0x07
85#define CHIP_M65_AURORA64VP 0x08
86#define CHIP_325_VIRGE 0x09
87#define CHIP_988_VIRGE_VX 0x0A
88#define CHIP_375_VIRGE_DX 0x0B
89#define CHIP_385_VIRGE_GX 0x0C
90#define CHIP_356_VIRGE_GX2 0x0D
91#define CHIP_357_VIRGE_GX2P 0x0E
92#define CHIP_359_VIRGE_GX2P 0x0F
9966c4fe
OZ		 93#define CHIP_360_TRIO3D_1X 0x10
94#define CHIP_362_TRIO3D_2X 0x11
95#define CHIP_368_TRIO3D_2X 0x12
a268422d
OZ		 96
97#define CHIP_XXX_TRIO 0x80
98#define CHIP_XXX_TRIO64V2_DXGX 0x81
99#define CHIP_XXX_VIRGE_DXGX 0x82
9966c4fe 100#define CHIP_36X_TRIO3D_1X_2X 0x83
a268422d
OZ		 101
102#define CHIP_UNDECIDED_FLAG 0x80
103#define CHIP_MASK 0xFF
104
105/* CRT timing register sets */
106
107static const struct vga_regset s3_h_total_regs[] = {{0x00, 0, 7}, {0x5D, 0, 0}, VGA_REGSET_END};
108static const struct vga_regset s3_h_display_regs[] = {{0x01, 0, 7}, {0x5D, 1, 1}, VGA_REGSET_END};
109static const struct vga_regset s3_h_blank_start_regs[] = {{0x02, 0, 7}, {0x5D, 2, 2}, VGA_REGSET_END};
110static const struct vga_regset s3_h_blank_end_regs[] = {{0x03, 0, 4}, {0x05, 7, 7}, VGA_REGSET_END};
111static const struct vga_regset s3_h_sync_start_regs[] = {{0x04, 0, 7}, {0x5D, 4, 4}, VGA_REGSET_END};
112static const struct vga_regset s3_h_sync_end_regs[] = {{0x05, 0, 4}, VGA_REGSET_END};
113
114static const struct vga_regset s3_v_total_regs[] = {{0x06, 0, 7}, {0x07, 0, 0}, {0x07, 5, 5}, {0x5E, 0, 0}, VGA_REGSET_END};
115static const struct vga_regset s3_v_display_regs[] = {{0x12, 0, 7}, {0x07, 1, 1}, {0x07, 6, 6}, {0x5E, 1, 1}, VGA_REGSET_END};
116static const struct vga_regset s3_v_blank_start_regs[] = {{0x15, 0, 7}, {0x07, 3, 3}, {0x09, 5, 5}, {0x5E, 2, 2}, VGA_REGSET_END};
117static const struct vga_regset s3_v_blank_end_regs[] = {{0x16, 0, 7}, VGA_REGSET_END};
118static const struct vga_regset s3_v_sync_start_regs[] = {{0x10, 0, 7}, {0x07, 2, 2}, {0x07, 7, 7}, {0x5E, 4, 4}, VGA_REGSET_END};
119static const struct vga_regset s3_v_sync_end_regs[] = {{0x11, 0, 3}, VGA_REGSET_END};
120
121static const struct vga_regset s3_line_compare_regs[] = {{0x18, 0, 7}, {0x07, 4, 4}, {0x09, 6, 6}, {0x5E, 6, 6}, VGA_REGSET_END};
122static const struct vga_regset s3_start_address_regs[] = {{0x0d, 0, 7}, {0x0c, 0, 7}, {0x31, 4, 5}, {0x51, 0, 1}, VGA_REGSET_END};
123static const struct vga_regset s3_offset_regs[] = {{0x13, 0, 7}, {0x51, 4, 5}, VGA_REGSET_END}; /* set 0x43 bit 2 to 0 */
124
125static const struct svga_timing_regs s3_timing_regs = {
126 s3_h_total_regs, s3_h_display_regs, s3_h_blank_start_regs,
127 s3_h_blank_end_regs, s3_h_sync_start_regs, s3_h_sync_end_regs,
128 s3_v_total_regs, s3_v_display_regs, s3_v_blank_start_regs,
129 s3_v_blank_end_regs, s3_v_sync_start_regs, s3_v_sync_end_regs,
130};
131
132
133/* ------------------------------------------------------------------------- */
134
135/* Module parameters */
136
137
a8140543 138static char *mode_option __devinitdata = "640x480-8@60";
a268422d
OZ		 139
140#ifdef CONFIG_MTRR
a8140543 141static int mtrr __devinitdata = 1;
a268422d
OZ		 142#endif
143
144static int fasttext = 1;
145
146
147MODULE_AUTHOR("(c) 2006-2007 Ondrej Zajicek <[email protected]>");
148MODULE_LICENSE("GPL");
149MODULE_DESCRIPTION("fbdev driver for S3 Trio/Virge");
150
a8140543
KH		 151module_param(mode_option, charp, 0444);
152MODULE_PARM_DESC(mode_option, "Default video mode ('640x480-8@60', etc)");
153module_param_named(mode, mode_option, charp, 0444);
154MODULE_PARM_DESC(mode, "Default video mode ('640x480-8@60', etc) (deprecated)");
a268422d
OZ		 155
156#ifdef CONFIG_MTRR
157module_param(mtrr, int, 0444);
158MODULE_PARM_DESC(mtrr, "Enable write-combining with MTRR (1=enable, 0=disable, default=1)");
159#endif
160
161module_param(fasttext, int, 0644);
162MODULE_PARM_DESC(fasttext, "Enable S3 fast text mode (1=enable, 0=disable, default=1)");
163
164
165/* ------------------------------------------------------------------------- */
166
167/* Set font in S3 fast text mode */
168
169static void s3fb_settile_fast(struct fb_info *info, struct fb_tilemap *map)
170{
171 const u8 *font = map->data;
75814d87 172 u8 __iomem *fb = (u8 __iomem *) info->screen_base;
a268422d
OZ		 173 int i, c;
174
175 if ((map->width != 8) || (map->height != 16) ||
176 (map->depth != 1) || (map->length != 256)) {
177 printk(KERN_ERR "fb%d: unsupported font parameters: width %d, height %d, depth %d, length %d\n",
178 info->node, map->width, map->height, map->depth, map->length);
179 return;
180 }
181
182 fb += 2;
183 for (i = 0; i < map->height; i++) {
184 for (c = 0; c < map->length; c++) {
75814d87 185 fb_writeb(font[c * map->height + i], fb + c * 4);
a268422d
OZ		 186 }
187 fb += 1024;
188 }
189}
190
a268422d
OZ		 191static struct fb_tile_ops s3fb_tile_ops = {
192 .fb_settile = svga_settile,
193 .fb_tilecopy = svga_tilecopy,
194 .fb_tilefill = svga_tilefill,
195 .fb_tileblit = svga_tileblit,
196 .fb_tilecursor = svga_tilecursor,
34ed25f5 197 .fb_get_tilemax = svga_get_tilemax,
a268422d
OZ		 198};
199
200static struct fb_tile_ops s3fb_fast_tile_ops = {
201 .fb_settile = s3fb_settile_fast,
202 .fb_tilecopy = svga_tilecopy,
203 .fb_tilefill = svga_tilefill,
204 .fb_tileblit = svga_tileblit,
205 .fb_tilecursor = svga_tilecursor,
34ed25f5 206 .fb_get_tilemax = svga_get_tilemax,
a268422d
OZ		 207};
208
209
210/* ------------------------------------------------------------------------- */
211
212/* image data is MSB-first, fb structure is MSB-first too */
213static inline u32 expand_color(u32 c)
214{
215 return ((c & 1) | ((c & 2) << 7) | ((c & 4) << 14) | ((c & 8) << 21)) * 0xFF;
216}
217
218/* s3fb_iplan_imageblit silently assumes that almost everything is 8-pixel aligned */
219static void s3fb_iplan_imageblit(struct fb_info *info, const struct fb_image *image)
220{
221 u32 fg = expand_color(image->fg_color);
222 u32 bg = expand_color(image->bg_color);
223 const u8 *src1, *src;
224 u8 __iomem *dst1;
225 u32 __iomem *dst;
226 u32 val;
227 int x, y;
228
229 src1 = image->data;
230 dst1 = info->screen_base + (image->dy * info->fix.line_length)
231 + ((image->dx / 8) * 4);
232
233 for (y = 0; y < image->height; y++) {
234 src = src1;
235 dst = (u32 __iomem *) dst1;
236 for (x = 0; x < image->width; x += 8) {
237 val = *(src++) * 0x01010101;
238 val = (val & fg) | (~val & bg);
239 fb_writel(val, dst++);
240 }
241 src1 += image->width / 8;
242 dst1 += info->fix.line_length;
243 }
244
245}
246
247/* s3fb_iplan_fillrect silently assumes that almost everything is 8-pixel aligned */
248static void s3fb_iplan_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
249{
250 u32 fg = expand_color(rect->color);
251 u8 __iomem *dst1;
252 u32 __iomem *dst;
253 int x, y;
254
255 dst1 = info->screen_base + (rect->dy * info->fix.line_length)
256 + ((rect->dx / 8) * 4);
257
258 for (y = 0; y < rect->height; y++) {
259 dst = (u32 __iomem *) dst1;
260 for (x = 0; x < rect->width; x += 8) {
261 fb_writel(fg, dst++);
262 }
263 dst1 += info->fix.line_length;
264 }
265}
266
267
268/* image data is MSB-first, fb structure is high-nibble-in-low-byte-first */
269static inline u32 expand_pixel(u32 c)
270{
271 return (((c & 1) << 24) | ((c & 2) << 27) | ((c & 4) << 14) | ((c & 8) << 17) |
272 ((c & 16) << 4) | ((c & 32) << 7) | ((c & 64) >> 6) | ((c & 128) >> 3)) * 0xF;
273}
274
275/* s3fb_cfb4_imageblit silently assumes that almost everything is 8-pixel aligned */
276static void s3fb_cfb4_imageblit(struct fb_info *info, const struct fb_image *image)
277{
278 u32 fg = image->fg_color * 0x11111111;
279 u32 bg = image->bg_color * 0x11111111;
280 const u8 *src1, *src;
281 u8 __iomem *dst1;
282 u32 __iomem *dst;
283 u32 val;
284 int x, y;
285
286 src1 = image->data;
287 dst1 = info->screen_base + (image->dy * info->fix.line_length)
288 + ((image->dx / 8) * 4);
289
290 for (y = 0; y < image->height; y++) {
291 src = src1;
292 dst = (u32 __iomem *) dst1;
293 for (x = 0; x < image->width; x += 8) {
294 val = expand_pixel(*(src++));
295 val = (val & fg) | (~val & bg);
296 fb_writel(val, dst++);
297 }
298 src1 += image->width / 8;
299 dst1 += info->fix.line_length;
300 }
301}
302
303static void s3fb_imageblit(struct fb_info *info, const struct fb_image *image)
304{
305 if ((info->var.bits_per_pixel == 4) && (image->depth == 1)
306 && ((image->width % 8) == 0) && ((image->dx % 8) == 0)) {
307 if (info->fix.type == FB_TYPE_INTERLEAVED_PLANES)
308 s3fb_iplan_imageblit(info, image);
309 else
310 s3fb_cfb4_imageblit(info, image);
311 } else
312 cfb_imageblit(info, image);
313}
314
315static void s3fb_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
316{
317 if ((info->var.bits_per_pixel == 4)
318 && ((rect->width % 8) == 0) && ((rect->dx % 8) == 0)
319 && (info->fix.type == FB_TYPE_INTERLEAVED_PLANES))
320 s3fb_iplan_fillrect(info, rect);
321 else
322 cfb_fillrect(info, rect);
323}
324
325
326
327/* ------------------------------------------------------------------------- */
328
329
330static void s3_set_pixclock(struct fb_info *info, u32 pixclock)
331{
9966c4fe 332 struct s3fb_info *par = info->par;
a268422d
OZ		 333 u16 m, n, r;
334 u8 regval;
249bdbbf 335 int rv;
a268422d 336
249bdbbf
OZ		 337 rv = svga_compute_pll(&s3_pll, 1000000000 / pixclock, &m, &n, &r, info->node);
338 if (rv < 0) {
339 printk(KERN_ERR "fb%d: cannot set requested pixclock, keeping old value\n", info->node);
340 return;
341 }
a268422d
OZ		 342
343 /* Set VGA misc register */
344 regval = vga_r(NULL, VGA_MIS_R);
345 vga_w(NULL, VGA_MIS_W, regval | VGA_MIS_ENB_PLL_LOAD);
346
347 /* Set S3 clock registers */
9966c4fe
OZ		 348 if (par->chip == CHIP_360_TRIO3D_1X ||
349 par->chip == CHIP_362_TRIO3D_2X ||
350 par->chip == CHIP_368_TRIO3D_2X) {
351 vga_wseq(NULL, 0x12, (n - 2) | ((r & 3) << 6)); /* n and two bits of r */
352 vga_wseq(NULL, 0x29, r >> 2); /* remaining highest bit of r */
353 } else
354 vga_wseq(NULL, 0x12, (n - 2) | (r << 5));
a268422d
OZ		 355 vga_wseq(NULL, 0x13, m - 2);
356
357 udelay(1000);
358
359 /* Activate clock - write 0, 1, 0 to seq/15 bit 5 */
360 regval = vga_rseq (NULL, 0x15); /* | 0x80; */
361 vga_wseq(NULL, 0x15, regval & ~(1<<5));
362 vga_wseq(NULL, 0x15, regval | (1<<5));
363 vga_wseq(NULL, 0x15, regval & ~(1<<5));
364}
365
366
367/* Open framebuffer */
368
369static int s3fb_open(struct fb_info *info, int user)
370{
371 struct s3fb_info *par = info->par;
372
373 mutex_lock(&(par->open_lock));
374 if (par->ref_count == 0) {
375 memset(&(par->state), 0, sizeof(struct vgastate));
376 par->state.flags = VGA_SAVE_MODE | VGA_SAVE_FONTS | VGA_SAVE_CMAP;
377 par->state.num_crtc = 0x70;
378 par->state.num_seq = 0x20;
379 save_vga(&(par->state));
380 }
381
382 par->ref_count++;
383 mutex_unlock(&(par->open_lock));
384
385 return 0;
386}
387
388/* Close framebuffer */
389
390static int s3fb_release(struct fb_info *info, int user)
391{
392 struct s3fb_info *par = info->par;
393
394 mutex_lock(&(par->open_lock));
395 if (par->ref_count == 0) {
396 mutex_unlock(&(par->open_lock));
397 return -EINVAL;
398 }
399
400 if (par->ref_count == 1)
401 restore_vga(&(par->state));
402
403 par->ref_count--;
404 mutex_unlock(&(par->open_lock));
405
406 return 0;
407}
408
409/* Validate passed in var */
410
411static int s3fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
412{
413 struct s3fb_info *par = info->par;
414 int rv, mem, step;
c3ca34f9 415 u16 m, n, r;
a268422d
OZ		 416
417 /* Find appropriate format */
418 rv = svga_match_format (s3fb_formats, var, NULL);
d4b766a0
OZ		 419
420 /* 32bpp mode is not supported on VIRGE VX,
421 24bpp is not supported on others */
422 if ((par->chip == CHIP_988_VIRGE_VX) ? (rv == 7) : (rv == 6))
423 rv = -EINVAL;
424
425 if (rv < 0) {
a268422d
OZ		 426 printk(KERN_ERR "fb%d: unsupported mode requested\n", info->node);
427 return rv;
428 }
429
430 /* Do not allow to have real resoulution larger than virtual */
431 if (var->xres > var->xres_virtual)
432 var->xres_virtual = var->xres;
433
434 if (var->yres > var->yres_virtual)
435 var->yres_virtual = var->yres;
436
437 /* Round up xres_virtual to have proper alignment of lines */
438 step = s3fb_formats[rv].xresstep - 1;
439 var->xres_virtual = (var->xres_virtual+step) & ~step;
440
441 /* Check whether have enough memory */
442 mem = ((var->bits_per_pixel * var->xres_virtual) >> 3) * var->yres_virtual;
c3ca34f9 443 if (mem > info->screen_size) {
a268422d
OZ		 444 printk(KERN_ERR "fb%d: not enough framebuffer memory (%d kB requested , %d kB available)\n",
445 info->node, mem >> 10, (unsigned int) (info->screen_size >> 10));
446 return -EINVAL;
447 }
448
449 rv = svga_check_timings (&s3_timing_regs, var, info->node);
c3ca34f9 450 if (rv < 0) {
a268422d
OZ		 451 printk(KERN_ERR "fb%d: invalid timings requested\n", info->node);
452 return rv;
453 }
454
c3ca34f9
KH		 455 rv = svga_compute_pll(&s3_pll, PICOS2KHZ(var->pixclock), &m, &n, &r,
456 info->node);
457 if (rv < 0) {
458 printk(KERN_ERR "fb%d: invalid pixclock value requested\n",
459 info->node);
460 return rv;
461 }
462
a268422d
OZ		 463 return 0;
464}
465
466/* Set video mode from par */
467
468static int s3fb_set_par(struct fb_info *info)
469{
470 struct s3fb_info *par = info->par;
9966c4fe 471 u32 value, mode, hmul, offset_value, screen_size, multiplex, dbytes;
a268422d
OZ		 472 u32 bpp = info->var.bits_per_pixel;
473
474 if (bpp != 0) {
475 info->fix.ypanstep = 1;
476 info->fix.line_length = (info->var.xres_virtual * bpp) / 8;
477
478 info->flags &= ~FBINFO_MISC_TILEBLITTING;
479 info->tileops = NULL;
480
34ed25f5
OZ		 481 /* in 4bpp supports 8p wide tiles only, any tiles otherwise */
482 info->pixmap.blit_x = (bpp == 4) ? (1 << (8 - 1)) : (~(u32)0);
8db51668 483 info->pixmap.blit_y = ~(u32)0;
34ed25f5 484
a268422d
OZ		 485 offset_value = (info->var.xres_virtual * bpp) / 64;
486 screen_size = info->var.yres_virtual * info->fix.line_length;
487 } else {
488 info->fix.ypanstep = 16;
489 info->fix.line_length = 0;
490
491 info->flags |= FBINFO_MISC_TILEBLITTING;
492 info->tileops = fasttext ? &s3fb_fast_tile_ops : &s3fb_tile_ops;
34ed25f5 493
8db51668
AD		 494 /* supports 8x16 tiles only */
495 info->pixmap.blit_x = 1 << (8 - 1);
496 info->pixmap.blit_y = 1 << (16 - 1);
a268422d
OZ		 497
498 offset_value = info->var.xres_virtual / 16;
499 screen_size = (info->var.xres_virtual * info->var.yres_virtual) / 64;
500 }
501
502 info->var.xoffset = 0;
503 info->var.yoffset = 0;
504 info->var.activate = FB_ACTIVATE_NOW;
505
506 /* Unlock registers */
507 vga_wcrt(NULL, 0x38, 0x48);
508 vga_wcrt(NULL, 0x39, 0xA5);
509 vga_wseq(NULL, 0x08, 0x06);
510 svga_wcrt_mask(0x11, 0x00, 0x80);
511
512 /* Blank screen and turn off sync */
513 svga_wseq_mask(0x01, 0x20, 0x20);
514 svga_wcrt_mask(0x17, 0x00, 0x80);
515
516 /* Set default values */
517 svga_set_default_gfx_regs();
518 svga_set_default_atc_regs();
519 svga_set_default_seq_regs();
520 svga_set_default_crt_regs();
521 svga_wcrt_multi(s3_line_compare_regs, 0xFFFFFFFF);
522 svga_wcrt_multi(s3_start_address_regs, 0);
523
524 /* S3 specific initialization */
525 svga_wcrt_mask(0x58, 0x10, 0x10); /* enable linear framebuffer */
526 svga_wcrt_mask(0x31, 0x08, 0x08); /* enable sequencer access to framebuffer above 256 kB */
527
528/* svga_wcrt_mask(0x33, 0x08, 0x08); */ /* DDR ? */
529/* svga_wcrt_mask(0x43, 0x01, 0x01); */ /* DDR ? */
530 svga_wcrt_mask(0x33, 0x00, 0x08); /* no DDR ? */
531 svga_wcrt_mask(0x43, 0x00, 0x01); /* no DDR ? */
532
9966c4fe 533 svga_wcrt_mask(0x5D, 0x00, 0x28); /* Clear strange HSlen bits */
a268422d
OZ		 534
535/* svga_wcrt_mask(0x58, 0x03, 0x03); */
536
537/* svga_wcrt_mask(0x53, 0x12, 0x13); */ /* enable MMIO */
538/* svga_wcrt_mask(0x40, 0x08, 0x08); */ /* enable write buffer */
539
540
541 /* Set the offset register */
542 pr_debug("fb%d: offset register : %d\n", info->node, offset_value);
543 svga_wcrt_multi(s3_offset_regs, offset_value);
544
9966c4fe
OZ		 545 if (par->chip != CHIP_360_TRIO3D_1X &&
546 par->chip != CHIP_362_TRIO3D_2X &&
547 par->chip != CHIP_368_TRIO3D_2X) {
548 vga_wcrt(NULL, 0x54, 0x18); /* M parameter */
549 vga_wcrt(NULL, 0x60, 0xff); /* N parameter */
550 vga_wcrt(NULL, 0x61, 0xff); /* L parameter */
551 vga_wcrt(NULL, 0x62, 0xff); /* L parameter */
552 }
a268422d
OZ		 553
554 vga_wcrt(NULL, 0x3A, 0x35);
555 svga_wattr(0x33, 0x00);
556
557 if (info->var.vmode & FB_VMODE_DOUBLE)
558 svga_wcrt_mask(0x09, 0x80, 0x80);
559 else
560 svga_wcrt_mask(0x09, 0x00, 0x80);
561
562 if (info->var.vmode & FB_VMODE_INTERLACED)
563 svga_wcrt_mask(0x42, 0x20, 0x20);
564 else
565 svga_wcrt_mask(0x42, 0x00, 0x20);
566
567 /* Disable hardware graphics cursor */
568 svga_wcrt_mask(0x45, 0x00, 0x01);
569 /* Disable Streams engine */
570 svga_wcrt_mask(0x67, 0x00, 0x0C);
571
572 mode = svga_match_format(s3fb_formats, &(info->var), &(info->fix));
573
574 /* S3 virge DX hack */
575 if (par->chip == CHIP_375_VIRGE_DX) {
576 vga_wcrt(NULL, 0x86, 0x80);
577 vga_wcrt(NULL, 0x90, 0x00);
578 }
579
580 /* S3 virge VX hack */
581 if (par->chip == CHIP_988_VIRGE_VX) {
582 vga_wcrt(NULL, 0x50, 0x00);
583 vga_wcrt(NULL, 0x67, 0x50);
584
585 vga_wcrt(NULL, 0x63, (mode <= 2) ? 0x90 : 0x09);
586 vga_wcrt(NULL, 0x66, 0x90);
587 }
588
9966c4fe
OZ		 589 if (par->chip == CHIP_360_TRIO3D_1X ||
590 par->chip == CHIP_362_TRIO3D_2X ||
591 par->chip == CHIP_368_TRIO3D_2X) {
592 dbytes = info->var.xres * ((bpp+7)/8);
593 vga_wcrt(NULL, 0x91, (dbytes + 7) / 8);
594 vga_wcrt(NULL, 0x90, (((dbytes + 7) / 8) >> 8) | 0x80);
595
596 vga_wcrt(NULL, 0x66, 0x81);
597 }
598
a268422d
OZ		 599 svga_wcrt_mask(0x31, 0x00, 0x40);
600 multiplex = 0;
601 hmul = 1;
602
603 /* Set mode-specific register values */
604 switch (mode) {
605 case 0:
606 pr_debug("fb%d: text mode\n", info->node);
607 svga_set_textmode_vga_regs();
608
609 /* Set additional registers like in 8-bit mode */
610 svga_wcrt_mask(0x50, 0x00, 0x30);
611 svga_wcrt_mask(0x67, 0x00, 0xF0);
612
613 /* Disable enhanced mode */
614 svga_wcrt_mask(0x3A, 0x00, 0x30);
615
616 if (fasttext) {
617 pr_debug("fb%d: high speed text mode set\n", info->node);
618 svga_wcrt_mask(0x31, 0x40, 0x40);
619 }
620 break;
621 case 1:
622 pr_debug("fb%d: 4 bit pseudocolor\n", info->node);
623 vga_wgfx(NULL, VGA_GFX_MODE, 0x40);
624
625 /* Set additional registers like in 8-bit mode */
626 svga_wcrt_mask(0x50, 0x00, 0x30);
627 svga_wcrt_mask(0x67, 0x00, 0xF0);
628
629 /* disable enhanced mode */
630 svga_wcrt_mask(0x3A, 0x00, 0x30);
631 break;
632 case 2:
633 pr_debug("fb%d: 4 bit pseudocolor, planar\n", info->node);
634
635 /* Set additional registers like in 8-bit mode */
636 svga_wcrt_mask(0x50, 0x00, 0x30);
637 svga_wcrt_mask(0x67, 0x00, 0xF0);
638
639 /* disable enhanced mode */
640 svga_wcrt_mask(0x3A, 0x00, 0x30);
641 break;
642 case 3:
643 pr_debug("fb%d: 8 bit pseudocolor\n", info->node);
9966c4fe
OZ		 644 svga_wcrt_mask(0x50, 0x00, 0x30);
645 if (info->var.pixclock > 20000 ||
646 par->chip == CHIP_360_TRIO3D_1X ||
647 par->chip == CHIP_362_TRIO3D_2X ||
648 par->chip == CHIP_368_TRIO3D_2X)
a268422d 649 svga_wcrt_mask(0x67, 0x00, 0xF0);
9966c4fe 650 else {
a268422d
OZ		 651 svga_wcrt_mask(0x67, 0x10, 0xF0);
652 multiplex = 1;
653 }
654 break;
655 case 4:
656 pr_debug("fb%d: 5/5/5 truecolor\n", info->node);
657 if (par->chip == CHIP_988_VIRGE_VX) {
658 if (info->var.pixclock > 20000)
659 svga_wcrt_mask(0x67, 0x20, 0xF0);
660 else
661 svga_wcrt_mask(0x67, 0x30, 0xF0);
662 } else {
663 svga_wcrt_mask(0x50, 0x10, 0x30);
664 svga_wcrt_mask(0x67, 0x30, 0xF0);
9966c4fe
OZ		 665 if (par->chip != CHIP_360_TRIO3D_1X &&
666 par->chip != CHIP_362_TRIO3D_2X &&
667 par->chip != CHIP_368_TRIO3D_2X)
668 hmul = 2;
a268422d
OZ		 669 }
670 break;
671 case 5:
672 pr_debug("fb%d: 5/6/5 truecolor\n", info->node);
673 if (par->chip == CHIP_988_VIRGE_VX) {
674 if (info->var.pixclock > 20000)
675 svga_wcrt_mask(0x67, 0x40, 0xF0);
676 else
677 svga_wcrt_mask(0x67, 0x50, 0xF0);
678 } else {
679 svga_wcrt_mask(0x50, 0x10, 0x30);
680 svga_wcrt_mask(0x67, 0x50, 0xF0);
9966c4fe
OZ		 681 if (par->chip != CHIP_360_TRIO3D_1X &&
682 par->chip != CHIP_362_TRIO3D_2X &&
683 par->chip != CHIP_368_TRIO3D_2X)
684 hmul = 2;
a268422d
OZ		 685 }
686 break;
687 case 6:
688 /* VIRGE VX case */
689 pr_debug("fb%d: 8/8/8 truecolor\n", info->node);
690 svga_wcrt_mask(0x67, 0xD0, 0xF0);
691 break;
692 case 7:
693 pr_debug("fb%d: 8/8/8/8 truecolor\n", info->node);
694 svga_wcrt_mask(0x50, 0x30, 0x30);
695 svga_wcrt_mask(0x67, 0xD0, 0xF0);
696 break;
697 default:
698 printk(KERN_ERR "fb%d: unsupported mode - bug\n", info->node);
699 return -EINVAL;
700 }
701
702 if (par->chip != CHIP_988_VIRGE_VX) {
703 svga_wseq_mask(0x15, multiplex ? 0x10 : 0x00, 0x10);
704 svga_wseq_mask(0x18, multiplex ? 0x80 : 0x00, 0x80);
705 }
706
707 s3_set_pixclock(info, info->var.pixclock);
708 svga_set_timings(&s3_timing_regs, &(info->var), hmul, 1,
709 (info->var.vmode & FB_VMODE_DOUBLE) ? 2 : 1,
710 (info->var.vmode & FB_VMODE_INTERLACED) ? 2 : 1,
711 hmul, info->node);
712
713 /* Set interlaced mode start/end register */
714 value = info->var.xres + info->var.left_margin + info->var.right_margin + info->var.hsync_len;
715 value = ((value * hmul) / 8) - 5;
716 vga_wcrt(NULL, 0x3C, (value + 1) / 2);
717
75814d87 718 memset_io(info->screen_base, 0x00, screen_size);
a268422d
OZ		 719 /* Device and screen back on */
720 svga_wcrt_mask(0x17, 0x80, 0x80);
721 svga_wseq_mask(0x01, 0x00, 0x20);
722
723 return 0;
724}
725
726/* Set a colour register */
727
728static int s3fb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
729 u_int transp, struct fb_info *fb)
730{
731 switch (fb->var.bits_per_pixel) {
732 case 0:
733 case 4:
734 if (regno >= 16)
735 return -EINVAL;
736
737 if ((fb->var.bits_per_pixel == 4) &&
738 (fb->var.nonstd == 0)) {
739 outb(0xF0, VGA_PEL_MSK);
740 outb(regno*16, VGA_PEL_IW);
741 } else {
742 outb(0x0F, VGA_PEL_MSK);
743 outb(regno, VGA_PEL_IW);
744 }
745 outb(red >> 10, VGA_PEL_D);
746 outb(green >> 10, VGA_PEL_D);
747 outb(blue >> 10, VGA_PEL_D);
748 break;
749 case 8:
750 if (regno >= 256)
751 return -EINVAL;
752
753 outb(0xFF, VGA_PEL_MSK);
754 outb(regno, VGA_PEL_IW);
755 outb(red >> 10, VGA_PEL_D);
756 outb(green >> 10, VGA_PEL_D);
757 outb(blue >> 10, VGA_PEL_D);
758 break;
759 case 16:
760 if (regno >= 16)
249bdbbf 761 return 0;
a268422d
OZ		 762
763 if (fb->var.green.length == 5)
764 ((u32*)fb->pseudo_palette)[regno] = ((red & 0xF800) >> 1) |
765 ((green & 0xF800) >> 6) | ((blue & 0xF800) >> 11);
766 else if (fb->var.green.length == 6)
767 ((u32*)fb->pseudo_palette)[regno] = (red & 0xF800) |
768 ((green & 0xFC00) >> 5) | ((blue & 0xF800) >> 11);
769 else return -EINVAL;
770 break;
771 case 24:
772 case 32:
773 if (regno >= 16)
249bdbbf 774 return 0;
a268422d 775
249bdbbf 776 ((u32*)fb->pseudo_palette)[regno] = ((red & 0xFF00) << 8) |
a268422d
OZ		 777 (green & 0xFF00) | ((blue & 0xFF00) >> 8);
778 break;
779 default:
780 return -EINVAL;
781 }
782
783 return 0;
784}
785
786
787/* Set the display blanking state */
788
789static int s3fb_blank(int blank_mode, struct fb_info *info)
790{
791 switch (blank_mode) {
792 case FB_BLANK_UNBLANK:
793 pr_debug("fb%d: unblank\n", info->node);
794 svga_wcrt_mask(0x56, 0x00, 0x06);
795 svga_wseq_mask(0x01, 0x00, 0x20);
796 break;
797 case FB_BLANK_NORMAL:
798 pr_debug("fb%d: blank\n", info->node);
799 svga_wcrt_mask(0x56, 0x00, 0x06);
800 svga_wseq_mask(0x01, 0x20, 0x20);
801 break;
802 case FB_BLANK_HSYNC_SUSPEND:
803 pr_debug("fb%d: hsync\n", info->node);
804 svga_wcrt_mask(0x56, 0x02, 0x06);
805 svga_wseq_mask(0x01, 0x20, 0x20);
806 break;
807 case FB_BLANK_VSYNC_SUSPEND:
808 pr_debug("fb%d: vsync\n", info->node);
809 svga_wcrt_mask(0x56, 0x04, 0x06);
810 svga_wseq_mask(0x01, 0x20, 0x20);
811 break;
812 case FB_BLANK_POWERDOWN:
813 pr_debug("fb%d: sync down\n", info->node);
814 svga_wcrt_mask(0x56, 0x06, 0x06);
815 svga_wseq_mask(0x01, 0x20, 0x20);
816 break;
817 }
818
819 return 0;
820}
821
822
823/* Pan the display */
824
825static int s3fb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info) {
826
827 unsigned int offset;
828
a268422d
OZ		 829 /* Calculate the offset */
830 if (var->bits_per_pixel == 0) {
831 offset = (var->yoffset / 16) * (var->xres_virtual / 2) + (var->xoffset / 2);
832 offset = offset >> 2;
833 } else {
834 offset = (var->yoffset * info->fix.line_length) +
835 (var->xoffset * var->bits_per_pixel / 8);
836 offset = offset >> 2;
837 }
838
839 /* Set the offset */
840 svga_wcrt_multi(s3_start_address_regs, offset);
841
842 return 0;
843}
844
845/* ------------------------------------------------------------------------- */
846
847/* Frame buffer operations */
848
849static struct fb_ops s3fb_ops = {
850 .owner = THIS_MODULE,
851 .fb_open = s3fb_open,
852 .fb_release = s3fb_release,
853 .fb_check_var = s3fb_check_var,
854 .fb_set_par = s3fb_set_par,
855 .fb_setcolreg = s3fb_setcolreg,
856 .fb_blank = s3fb_blank,
857 .fb_pan_display = s3fb_pan_display,
858 .fb_fillrect = s3fb_fillrect,
859 .fb_copyarea = cfb_copyarea,
860 .fb_imageblit = s3fb_imageblit,
5a87ede9 861 .fb_get_caps = svga_get_caps,
a268422d
OZ		 862};
863
864/* ------------------------------------------------------------------------- */
865
866static int __devinit s3_identification(int chip)
867{
868 if (chip == CHIP_XXX_TRIO) {
869 u8 cr30 = vga_rcrt(NULL, 0x30);
870 u8 cr2e = vga_rcrt(NULL, 0x2e);
871 u8 cr2f = vga_rcrt(NULL, 0x2f);
872
873 if ((cr30 == 0xE0) || (cr30 == 0xE1)) {
874 if (cr2e == 0x10)
875 return CHIP_732_TRIO32;
876 if (cr2e == 0x11) {
877 if (! (cr2f & 0x40))
878 return CHIP_764_TRIO64;
879 else
880 return CHIP_765_TRIO64VP;
881 }
882 }
883 }
884
885 if (chip == CHIP_XXX_TRIO64V2_DXGX) {
886 u8 cr6f = vga_rcrt(NULL, 0x6f);
887
888 if (! (cr6f & 0x01))
889 return CHIP_775_TRIO64V2_DX;
890 else
891 return CHIP_785_TRIO64V2_GX;
892 }
893
894 if (chip == CHIP_XXX_VIRGE_DXGX) {
895 u8 cr6f = vga_rcrt(NULL, 0x6f);
896
897 if (! (cr6f & 0x01))
898 return CHIP_375_VIRGE_DX;
899 else
900 return CHIP_385_VIRGE_GX;
901 }
902
9966c4fe
OZ		 903 if (chip == CHIP_36X_TRIO3D_1X_2X) {
904 switch (vga_rcrt(NULL, 0x2f)) {
905 case 0x00:
906 return CHIP_360_TRIO3D_1X;
907 case 0x01:
908 return CHIP_362_TRIO3D_2X;
909 case 0x02:
910 return CHIP_368_TRIO3D_2X;
911 }
912 }
913
a268422d
OZ		 914 return CHIP_UNKNOWN;
915}
916
917
918/* PCI probe */
919
920static int __devinit s3_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
921{
922 struct fb_info *info;
923 struct s3fb_info *par;
924 int rc;
925 u8 regval, cr38, cr39;
926
927 /* Ignore secondary VGA device because there is no VGA arbitration */
928 if (! svga_primary_device(dev)) {
929 dev_info(&(dev->dev), "ignoring secondary device\n");
930 return -ENODEV;
931 }
932
933 /* Allocate and fill driver data structure */
20e061fb 934 info = framebuffer_alloc(sizeof(struct s3fb_info), &(dev->dev));
a268422d
OZ		 935 if (!info) {
936 dev_err(&(dev->dev), "cannot allocate memory\n");
937 return -ENOMEM;
938 }
939
940 par = info->par;
941 mutex_init(&par->open_lock);
942
943 info->flags = FBINFO_PARTIAL_PAN_OK | FBINFO_HWACCEL_YPAN;
944 info->fbops = &s3fb_ops;
945
946 /* Prepare PCI device */
947 rc = pci_enable_device(dev);
948 if (rc < 0) {
594a8819 949 dev_err(info->device, "cannot enable PCI device\n");
a268422d
OZ		 950 goto err_enable_device;
951 }
952
953 rc = pci_request_regions(dev, "s3fb");
954 if (rc < 0) {
594a8819 955 dev_err(info->device, "cannot reserve framebuffer region\n");
a268422d
OZ		 956 goto err_request_regions;
957 }
958
959
960 info->fix.smem_start = pci_resource_start(dev, 0);
961 info->fix.smem_len = pci_resource_len(dev, 0);
962
963 /* Map physical IO memory address into kernel space */
964 info->screen_base = pci_iomap(dev, 0, 0);
965 if (! info->screen_base) {
966 rc = -ENOMEM;
594a8819 967 dev_err(info->device, "iomap for framebuffer failed\n");
a268422d
OZ		 968 goto err_iomap;
969 }
970
971 /* Unlock regs */
972 cr38 = vga_rcrt(NULL, 0x38);
973 cr39 = vga_rcrt(NULL, 0x39);
974 vga_wseq(NULL, 0x08, 0x06);
975 vga_wcrt(NULL, 0x38, 0x48);
976 vga_wcrt(NULL, 0x39, 0xA5);
977
9966c4fe 978 /* Identify chip type */
a268422d
OZ		 979 par->chip = id->driver_data & CHIP_MASK;
980 par->rev = vga_rcrt(NULL, 0x2f);
981 if (par->chip & CHIP_UNDECIDED_FLAG)
982 par->chip = s3_identification(par->chip);
983
9966c4fe
OZ		 984 /* Find how many physical memory there is on card */
985 /* 0x36 register is accessible even if other registers are locked */
986 regval = vga_rcrt(NULL, 0x36);
987 if (par->chip == CHIP_360_TRIO3D_1X ||
988 par->chip == CHIP_362_TRIO3D_2X ||
989 par->chip == CHIP_368_TRIO3D_2X) {
990 switch ((regval & 0xE0) >> 5) {
991 case 0: /* 8MB -- only 4MB usable for display */
992 case 1: /* 4MB with 32-bit bus */
993 case 2: /* 4MB */
994 info->screen_size = 4 << 20;
995 break;
996 case 6: /* 2MB */
997 info->screen_size = 2 << 20;
998 break;
999 }
1000 } else
1001 info->screen_size = s3_memsizes[regval >> 5] << 10;
1002 info->fix.smem_len = info->screen_size;
1003
a268422d
OZ		 1004 /* Find MCLK frequency */
1005 regval = vga_rseq(NULL, 0x10);
1006 par->mclk_freq = ((vga_rseq(NULL, 0x11) + 2) * 14318) / ((regval & 0x1F) + 2);
1007 par->mclk_freq = par->mclk_freq >> (regval >> 5);
1008
1009 /* Restore locks */
1010 vga_wcrt(NULL, 0x38, cr38);
1011 vga_wcrt(NULL, 0x39, cr39);
1012
1013 strcpy(info->fix.id, s3_names [par->chip]);
1014 info->fix.mmio_start = 0;
1015 info->fix.mmio_len = 0;
1016 info->fix.type = FB_TYPE_PACKED_PIXELS;
1017 info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
1018 info->fix.ypanstep = 0;
1019 info->fix.accel = FB_ACCEL_NONE;
1020 info->pseudo_palette = (void*) (par->pseudo_palette);
1021
1022 /* Prepare startup mode */
a8140543 1023 rc = fb_find_mode(&(info->var), info, mode_option, NULL, 0, NULL, 8);
a268422d
OZ		 1024 if (! ((rc == 1) || (rc == 2))) {
1025 rc = -EINVAL;
594a8819 1026 dev_err(info->device, "mode %s not found\n", mode_option);
a268422d
OZ		 1027 goto err_find_mode;
1028 }
1029
1030 rc = fb_alloc_cmap(&info->cmap, 256, 0);
1031 if (rc < 0) {
594a8819 1032 dev_err(info->device, "cannot allocate colormap\n");
a268422d
OZ		 1033 goto err_alloc_cmap;
1034 }
1035
1036 rc = register_framebuffer(info);
1037 if (rc < 0) {
594a8819 1038 dev_err(info->device, "cannot register framebuffer\n");
a268422d
OZ		 1039 goto err_reg_fb;
1040 }
1041
1042 printk(KERN_INFO "fb%d: %s on %s, %d MB RAM, %d MHz MCLK\n", info->node, info->fix.id,
1043 pci_name(dev), info->fix.smem_len >> 20, (par->mclk_freq + 500) / 1000);
1044
1045 if (par->chip == CHIP_UNKNOWN)
1046 printk(KERN_INFO "fb%d: unknown chip, CR2D=%x, CR2E=%x, CRT2F=%x, CRT30=%x\n",
1047 info->node, vga_rcrt(NULL, 0x2d), vga_rcrt(NULL, 0x2e),
1048 vga_rcrt(NULL, 0x2f), vga_rcrt(NULL, 0x30));
1049
1050 /* Record a reference to the driver data */
1051 pci_set_drvdata(dev, info);
1052
1053#ifdef CONFIG_MTRR
1054 if (mtrr) {
1055 par->mtrr_reg = -1;
1056 par->mtrr_reg = mtrr_add(info->fix.smem_start, info->fix.smem_len, MTRR_TYPE_WRCOMB, 1);
1057 }
1058#endif
1059
1060 return 0;
1061
1062 /* Error handling */
1063err_reg_fb:
1064 fb_dealloc_cmap(&info->cmap);
1065err_alloc_cmap:
1066err_find_mode:
1067 pci_iounmap(dev, info->screen_base);
1068err_iomap:
1069 pci_release_regions(dev);
1070err_request_regions:
1071/* pci_disable_device(dev); */
1072err_enable_device:
1073 framebuffer_release(info);
1074 return rc;
1075}
1076
1077
1078/* PCI remove */
1079
1080static void __devexit s3_pci_remove(struct pci_dev *dev)
1081{
1082 struct fb_info *info = pci_get_drvdata(dev);
a268422d
OZ		 1083
1084 if (info) {
1085
1086#ifdef CONFIG_MTRR
47ebea83
AB		 1087 struct s3fb_info *par = info->par;
1088
a268422d
OZ		 1089 if (par->mtrr_reg >= 0) {
1090 mtrr_del(par->mtrr_reg, 0, 0);
1091 par->mtrr_reg = -1;
1092 }
1093#endif
1094
1095 unregister_framebuffer(info);
1096 fb_dealloc_cmap(&info->cmap);
1097
1098 pci_iounmap(dev, info->screen_base);
1099 pci_release_regions(dev);
1100/* pci_disable_device(dev); */
1101
1102 pci_set_drvdata(dev, NULL);
1103 framebuffer_release(info);
1104 }
1105}
1106
1107/* PCI suspend */
1108
1109static int s3_pci_suspend(struct pci_dev* dev, pm_message_t state)
1110{
1111 struct fb_info *info = pci_get_drvdata(dev);
1112 struct s3fb_info *par = info->par;
1113
594a8819 1114 dev_info(info->device, "suspend\n");
a268422d
OZ		 1115
1116 acquire_console_sem();
1117 mutex_lock(&(par->open_lock));
1118
1119 if ((state.event == PM_EVENT_FREEZE) || (par->ref_count == 0)) {
1120 mutex_unlock(&(par->open_lock));
1121 release_console_sem();
1122 return 0;
1123 }
1124
1125 fb_set_suspend(info, 1);
1126
1127 pci_save_state(dev);
1128 pci_disable_device(dev);
1129 pci_set_power_state(dev, pci_choose_state(dev, state));
1130
1131 mutex_unlock(&(par->open_lock));
1132 release_console_sem();
1133
1134 return 0;
1135}
1136
1137
1138/* PCI resume */
1139
1140static int s3_pci_resume(struct pci_dev* dev)
1141{
1142 struct fb_info *info = pci_get_drvdata(dev);
1143 struct s3fb_info *par = info->par;
6314db41 1144 int err;
a268422d 1145
594a8819 1146 dev_info(info->device, "resume\n");
a268422d
OZ		 1147
1148 acquire_console_sem();
1149 mutex_lock(&(par->open_lock));
1150
1151 if (par->ref_count == 0) {
1152 mutex_unlock(&(par->open_lock));
1153 release_console_sem();
1154 return 0;
1155 }
1156
1157 pci_set_power_state(dev, PCI_D0);
1158 pci_restore_state(dev);
6314db41
RD		 1159 err = pci_enable_device(dev);
1160 if (err) {
1161 mutex_unlock(&(par->open_lock));
1162 release_console_sem();
594a8819 1163 dev_err(info->device, "error %d enabling device for resume\n", err);
6314db41
RD		 1164 return err;
1165 }
a268422d
OZ		 1166 pci_set_master(dev);
1167
1168 s3fb_set_par(info);
1169 fb_set_suspend(info, 0);
1170
1171 mutex_unlock(&(par->open_lock));
1172 release_console_sem();
1173
1174 return 0;
1175}
1176
1177
1178/* List of boards that we are trying to support */
1179
1180static struct pci_device_id s3_devices[] __devinitdata = {
1181 {PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8810), .driver_data = CHIP_XXX_TRIO},
1182 {PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8811), .driver_data = CHIP_XXX_TRIO},
1183 {PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8812), .driver_data = CHIP_M65_AURORA64VP},
1184 {PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8814), .driver_data = CHIP_767_TRIO64UVP},
1185 {PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8901), .driver_data = CHIP_XXX_TRIO64V2_DXGX},
1186 {PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8902), .driver_data = CHIP_551_PLATO_PX},
1187
1188 {PCI_DEVICE(PCI_VENDOR_ID_S3, 0x5631), .driver_data = CHIP_325_VIRGE},
1189 {PCI_DEVICE(PCI_VENDOR_ID_S3, 0x883D), .driver_data = CHIP_988_VIRGE_VX},
1190 {PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8A01), .driver_data = CHIP_XXX_VIRGE_DXGX},
1191 {PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8A10), .driver_data = CHIP_356_VIRGE_GX2},
1192 {PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8A11), .driver_data = CHIP_357_VIRGE_GX2P},
1193 {PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8A12), .driver_data = CHIP_359_VIRGE_GX2P},
9966c4fe 1194 {PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8A13), .driver_data = CHIP_36X_TRIO3D_1X_2X},
a268422d
OZ		 1195
1196 {0, 0, 0, 0, 0, 0, 0}
1197};
1198
1199
1200MODULE_DEVICE_TABLE(pci, s3_devices);
1201
1202static struct pci_driver s3fb_pci_driver = {
1203 .name = "s3fb",
1204 .id_table = s3_devices,
1205 .probe = s3_pci_probe,
1206 .remove = __devexit_p(s3_pci_remove),
1207 .suspend = s3_pci_suspend,
1208 .resume = s3_pci_resume,
1209};
1210
1211/* Parse user speficied options */
1212
1213#ifndef MODULE
1214static int __init s3fb_setup(char *options)
1215{
1216 char *opt;
1217
1218 if (!options || !*options)
1219 return 0;
1220
1221 while ((opt = strsep(&options, ",")) != NULL) {
1222
1223 if (!*opt)
1224 continue;
1225#ifdef CONFIG_MTRR
62fa4dc7 1226 else if (!strncmp(opt, "mtrr:", 5))
a268422d
OZ		 1227 mtrr = simple_strtoul(opt + 5, NULL, 0);
1228#endif
62fa4dc7
OZ		 1229 else if (!strncmp(opt, "fasttext:", 9))
1230 fasttext = simple_strtoul(opt + 9, NULL, 0);
a268422d 1231 else
a8140543 1232 mode_option = opt;
a268422d
OZ		 1233 }
1234
1235 return 0;
1236}
1237#endif
1238
1239/* Cleanup */
1240
1241static void __exit s3fb_cleanup(void)
1242{
1243 pr_debug("s3fb: cleaning up\n");
1244 pci_unregister_driver(&s3fb_pci_driver);
1245}
1246
1247/* Driver Initialisation */
1248
1249static int __init s3fb_init(void)
1250{
1251
1252#ifndef MODULE
1253 char *option = NULL;
1254
1255 if (fb_get_options("s3fb", &option))
1256 return -ENODEV;
1257 s3fb_setup(option);
1258#endif
1259
1260 pr_debug("s3fb: initializing\n");
1261 return pci_register_driver(&s3fb_pci_driver);
1262}
1263
1264/* ------------------------------------------------------------------------- */
1265
1266/* Modularization */
1267
1268module_init(s3fb_init);
1269module_exit(s3fb_cleanup);
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