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[/] [test_project/] [trunk/] [linux_sd_driver/] [drivers/] [video/] [asiliantfb.c] - Blame information for rev 62

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1 62 marcus.erl
/*
2
 * drivers/video/asiliantfb.c
3
 *  frame buffer driver for Asiliant 69000 chip
4
 *  Copyright (C) 2001-2003 Saito.K & Jeanne
5
 *
6
 *  from driver/video/chipsfb.c and,
7
 *
8
 *  drivers/video/asiliantfb.c -- frame buffer device for
9
 *  Asiliant 69030 chip (formerly Intel, formerly Chips & Technologies)
10
 *  Author: apc@agelectronics.co.uk
11
 *  Copyright (C) 2000 AG Electronics
12
 *  Note: the data sheets don't seem to be available from Asiliant.
13
 *  They are available by searching developer.intel.com, but are not otherwise
14
 *  linked to.
15
 *
16
 *  This driver should be portable with minimal effort to the 69000 display
17
 *  chip, and to the twin-display mode of the 69030.
18
 *  Contains code from Thomas Hhenleitner <th@visuelle-maschinen.de> (thanks)
19
 *
20
 *  Derived from the CT65550 driver chipsfb.c:
21
 *  Copyright (C) 1998 Paul Mackerras
22
 *  ...which was derived from the Powermac "chips" driver:
23
 *  Copyright (C) 1997 Fabio Riccardi.
24
 *  And from the frame buffer device for Open Firmware-initialized devices:
25
 *  Copyright (C) 1997 Geert Uytterhoeven.
26
 *
27
 *  This file is subject to the terms and conditions of the GNU General Public
28
 *  License. See the file COPYING in the main directory of this archive for
29
 *  more details.
30
 */
31
 
32
#include <linux/module.h>
33
#include <linux/kernel.h>
34
#include <linux/errno.h>
35
#include <linux/string.h>
36
#include <linux/mm.h>
37
#include <linux/slab.h>
38
#include <linux/vmalloc.h>
39
#include <linux/delay.h>
40
#include <linux/interrupt.h>
41
#include <linux/fb.h>
42
#include <linux/init.h>
43
#include <linux/pci.h>
44
#include <asm/io.h>
45
 
46
/* Built in clock of the 69030 */
47
static const unsigned Fref = 14318180;
48
 
49
#define mmio_base (p->screen_base + 0x400000)
50
 
51
#define mm_write_ind(num, val, ap, dp)  do { \
52
        writeb((num), mmio_base + (ap)); writeb((val), mmio_base + (dp)); \
53
} while (0)
54
 
55
static void mm_write_xr(struct fb_info *p, u8 reg, u8 data)
56
{
57
        mm_write_ind(reg, data, 0x7ac, 0x7ad);
58
}
59
#define write_xr(num, val)      mm_write_xr(p, num, val)
60
 
61
static void mm_write_fr(struct fb_info *p, u8 reg, u8 data)
62
{
63
        mm_write_ind(reg, data, 0x7a0, 0x7a1);
64
}
65
#define write_fr(num, val)      mm_write_fr(p, num, val)
66
 
67
static void mm_write_cr(struct fb_info *p, u8 reg, u8 data)
68
{
69
        mm_write_ind(reg, data, 0x7a8, 0x7a9);
70
}
71
#define write_cr(num, val)      mm_write_cr(p, num, val)
72
 
73
static void mm_write_gr(struct fb_info *p, u8 reg, u8 data)
74
{
75
        mm_write_ind(reg, data, 0x79c, 0x79d);
76
}
77
#define write_gr(num, val)      mm_write_gr(p, num, val)
78
 
79
static void mm_write_sr(struct fb_info *p, u8 reg, u8 data)
80
{
81
        mm_write_ind(reg, data, 0x788, 0x789);
82
}
83
#define write_sr(num, val)      mm_write_sr(p, num, val)
84
 
85
static void mm_write_ar(struct fb_info *p, u8 reg, u8 data)
86
{
87
        readb(mmio_base + 0x7b4);
88
        mm_write_ind(reg, data, 0x780, 0x780);
89
}
90
#define write_ar(num, val)      mm_write_ar(p, num, val)
91
 
92
static int asiliantfb_pci_init(struct pci_dev *dp, const struct pci_device_id *);
93
static int asiliantfb_check_var(struct fb_var_screeninfo *var,
94
                                struct fb_info *info);
95
static int asiliantfb_set_par(struct fb_info *info);
96
static int asiliantfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
97
                                u_int transp, struct fb_info *info);
98
 
99
static struct fb_ops asiliantfb_ops = {
100
        .owner          = THIS_MODULE,
101
        .fb_check_var   = asiliantfb_check_var,
102
        .fb_set_par     = asiliantfb_set_par,
103
        .fb_setcolreg   = asiliantfb_setcolreg,
104
        .fb_fillrect    = cfb_fillrect,
105
        .fb_copyarea    = cfb_copyarea,
106
        .fb_imageblit   = cfb_imageblit,
107
};
108
 
109
/* Calculate the ratios for the dot clocks without using a single long long
110
 * value */
111
static void asiliant_calc_dclk2(u32 *ppixclock, u8 *dclk2_m, u8 *dclk2_n, u8 *dclk2_div)
112
{
113
        unsigned pixclock = *ppixclock;
114
        unsigned Ftarget = 1000000 * (1000000 / pixclock);
115
        unsigned n;
116
        unsigned best_error = 0xffffffff;
117
        unsigned best_m = 0xffffffff,
118
                 best_n = 0xffffffff;
119
        unsigned ratio;
120
        unsigned remainder;
121
        unsigned char divisor = 0;
122
 
123
        /* Calculate the frequency required. This is hard enough. */
124
        ratio = 1000000 / pixclock;
125
        remainder = 1000000 % pixclock;
126
        Ftarget = 1000000 * ratio + (1000000 * remainder) / pixclock;
127
 
128
        while (Ftarget < 100000000) {
129
                divisor += 0x10;
130
                Ftarget <<= 1;
131
        }
132
 
133
        ratio = Ftarget / Fref;
134
        remainder = Ftarget % Fref;
135
 
136
        /* This expresses the constraint that 150kHz <= Fref/n <= 5Mhz,
137
         * together with 3 <= n <= 257. */
138
        for (n = 3; n <= 257; n++) {
139
                unsigned m = n * ratio + (n * remainder) / Fref;
140
 
141
                /* 3 <= m <= 257 */
142
                if (m >= 3 && m <= 257) {
143
                        unsigned new_error = ((Ftarget * n) - (Fref * m)) >= 0 ?
144
                                               ((Ftarget * n) - (Fref * m)) : ((Fref * m) - (Ftarget * n));
145
                        if (new_error < best_error) {
146
                                best_n = n;
147
                                best_m = m;
148
                                best_error = new_error;
149
                        }
150
                }
151
                /* But if VLD = 4, then 4m <= 1028 */
152
                else if (m <= 1028) {
153
                        /* remember there are still only 8-bits of precision in m, so
154
                         * avoid over-optimistic error calculations */
155
                        unsigned new_error = ((Ftarget * n) - (Fref * (m & ~3))) >= 0 ?
156
                                               ((Ftarget * n) - (Fref * (m & ~3))) : ((Fref * (m & ~3)) - (Ftarget * n));
157
                        if (new_error < best_error) {
158
                                best_n = n;
159
                                best_m = m;
160
                                best_error = new_error;
161
                        }
162
                }
163
        }
164
        if (best_m > 257)
165
                best_m >>= 2;   /* divide m by 4, and leave VCO loop divide at 4 */
166
        else
167
                divisor |= 4;   /* or set VCO loop divide to 1 */
168
        *dclk2_m = best_m - 2;
169
        *dclk2_n = best_n - 2;
170
        *dclk2_div = divisor;
171
        *ppixclock = pixclock;
172
        return;
173
}
174
 
175
static void asiliant_set_timing(struct fb_info *p)
176
{
177
        unsigned hd = p->var.xres / 8;
178
        unsigned hs = (p->var.xres + p->var.right_margin) / 8;
179
        unsigned he = (p->var.xres + p->var.right_margin + p->var.hsync_len) / 8;
180
        unsigned ht = (p->var.left_margin + p->var.xres + p->var.right_margin + p->var.hsync_len) / 8;
181
        unsigned vd = p->var.yres;
182
        unsigned vs = p->var.yres + p->var.lower_margin;
183
        unsigned ve = p->var.yres + p->var.lower_margin + p->var.vsync_len;
184
        unsigned vt = p->var.upper_margin + p->var.yres + p->var.lower_margin + p->var.vsync_len;
185
        unsigned wd = (p->var.xres_virtual * ((p->var.bits_per_pixel+7)/8)) / 8;
186
 
187
        if ((p->var.xres == 640) && (p->var.yres == 480) && (p->var.pixclock == 39722)) {
188
          write_fr(0x01, 0x02);  /* LCD */
189
        } else {
190
          write_fr(0x01, 0x01);  /* CRT */
191
        }
192
 
193
        write_cr(0x11, (ve - 1) & 0x0f);
194
        write_cr(0x00, (ht - 5) & 0xff);
195
        write_cr(0x01, hd - 1);
196
        write_cr(0x02, hd);
197
        write_cr(0x03, ((ht - 1) & 0x1f) | 0x80);
198
        write_cr(0x04, hs);
199
        write_cr(0x05, (((ht - 1) & 0x20) <<2) | (he & 0x1f));
200
        write_cr(0x3c, (ht - 1) & 0xc0);
201
        write_cr(0x06, (vt - 2) & 0xff);
202
        write_cr(0x30, (vt - 2) >> 8);
203
        write_cr(0x07, 0x00);
204
        write_cr(0x08, 0x00);
205
        write_cr(0x09, 0x00);
206
        write_cr(0x10, (vs - 1) & 0xff);
207
        write_cr(0x32, ((vs - 1) >> 8) & 0xf);
208
        write_cr(0x11, ((ve - 1) & 0x0f) | 0x80);
209
        write_cr(0x12, (vd - 1) & 0xff);
210
        write_cr(0x31, ((vd - 1) & 0xf00) >> 8);
211
        write_cr(0x13, wd & 0xff);
212
        write_cr(0x41, (wd & 0xf00) >> 8);
213
        write_cr(0x15, (vs - 1) & 0xff);
214
        write_cr(0x33, ((vs - 1) >> 8) & 0xf);
215
        write_cr(0x38, ((ht - 5) & 0x100) >> 8);
216
        write_cr(0x16, (vt - 1) & 0xff);
217
        write_cr(0x18, 0x00);
218
 
219
        if (p->var.xres == 640) {
220
          writeb(0xc7, mmio_base + 0x784);      /* set misc output reg */
221
        } else {
222
          writeb(0x07, mmio_base + 0x784);      /* set misc output reg */
223
        }
224
}
225
 
226
static int asiliantfb_check_var(struct fb_var_screeninfo *var,
227
                             struct fb_info *p)
228
{
229
        unsigned long Ftarget, ratio, remainder;
230
 
231
        ratio = 1000000 / var->pixclock;
232
        remainder = 1000000 % var->pixclock;
233
        Ftarget = 1000000 * ratio + (1000000 * remainder) / var->pixclock;
234
 
235
        /* First check the constraint that the maximum post-VCO divisor is 32,
236
         * and the maximum Fvco is 220MHz */
237
        if (Ftarget > 220000000 || Ftarget < 3125000) {
238
                printk(KERN_ERR "asiliantfb dotclock must be between 3.125 and 220MHz\n");
239
                return -ENXIO;
240
        }
241
        var->xres_virtual = var->xres;
242
        var->yres_virtual = var->yres;
243
 
244
        if (var->bits_per_pixel == 24) {
245
                var->red.offset = 16;
246
                var->green.offset = 8;
247
                var->blue.offset = 0;
248
                var->red.length = var->blue.length = var->green.length = 8;
249
        } else if (var->bits_per_pixel == 16) {
250
                switch (var->red.offset) {
251
                        case 11:
252
                                var->green.length = 6;
253
                                break;
254
                        case 10:
255
                                var->green.length = 5;
256
                                break;
257
                        default:
258
                                return -EINVAL;
259
                }
260
                var->green.offset = 5;
261
                var->blue.offset = 0;
262
                var->red.length = var->blue.length = 5;
263
        } else if (var->bits_per_pixel == 8) {
264
                var->red.offset = var->green.offset = var->blue.offset = 0;
265
                var->red.length = var->green.length = var->blue.length = 8;
266
        }
267
        return 0;
268
}
269
 
270
static int asiliantfb_set_par(struct fb_info *p)
271
{
272
        u8 dclk2_m;             /* Holds m-2 value for register */
273
        u8 dclk2_n;             /* Holds n-2 value for register */
274
        u8 dclk2_div;           /* Holds divisor bitmask */
275
 
276
        /* Set pixclock */
277
        asiliant_calc_dclk2(&p->var.pixclock, &dclk2_m, &dclk2_n, &dclk2_div);
278
 
279
        /* Set color depth */
280
        if (p->var.bits_per_pixel == 24) {
281
                write_xr(0x81, 0x16);   /* 24 bit packed color mode */
282
                write_xr(0x82, 0x00);   /* Disable palettes */
283
                write_xr(0x20, 0x20);   /* 24 bit blitter mode */
284
        } else if (p->var.bits_per_pixel == 16) {
285
                if (p->var.red.offset == 11)
286
                        write_xr(0x81, 0x15);   /* 16 bit color mode */
287
                else
288
                        write_xr(0x81, 0x14);   /* 15 bit color mode */
289
                write_xr(0x82, 0x00);   /* Disable palettes */
290
                write_xr(0x20, 0x10);   /* 16 bit blitter mode */
291
        } else if (p->var.bits_per_pixel == 8) {
292
                write_xr(0x0a, 0x02);   /* Linear */
293
                write_xr(0x81, 0x12);   /* 8 bit color mode */
294
                write_xr(0x82, 0x00);   /* Graphics gamma enable */
295
                write_xr(0x20, 0x00);   /* 8 bit blitter mode */
296
        }
297
        p->fix.line_length = p->var.xres * (p->var.bits_per_pixel >> 3);
298
        p->fix.visual = (p->var.bits_per_pixel == 8) ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
299
        write_xr(0xc4, dclk2_m);
300
        write_xr(0xc5, dclk2_n);
301
        write_xr(0xc7, dclk2_div);
302
        /* Set up the CR registers */
303
        asiliant_set_timing(p);
304
        return 0;
305
}
306
 
307
static int asiliantfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
308
                             u_int transp, struct fb_info *p)
309
{
310
        if (regno > 255)
311
                return 1;
312
        red >>= 8;
313
        green >>= 8;
314
        blue >>= 8;
315
 
316
        /* Set hardware palete */
317
        writeb(regno, mmio_base + 0x790);
318
        udelay(1);
319
        writeb(red, mmio_base + 0x791);
320
        writeb(green, mmio_base + 0x791);
321
        writeb(blue, mmio_base + 0x791);
322
 
323
        if (regno < 16) {
324
                switch(p->var.red.offset) {
325
                case 10: /* RGB 555 */
326
                        ((u32 *)(p->pseudo_palette))[regno] =
327
                                ((red & 0xf8) << 7) |
328
                                ((green & 0xf8) << 2) |
329
                                ((blue & 0xf8) >> 3);
330
                        break;
331
                case 11: /* RGB 565 */
332
                        ((u32 *)(p->pseudo_palette))[regno] =
333
                                ((red & 0xf8) << 8) |
334
                                ((green & 0xfc) << 3) |
335
                                ((blue & 0xf8) >> 3);
336
                        break;
337
                case 16: /* RGB 888 */
338
                        ((u32 *)(p->pseudo_palette))[regno] =
339
                                (red << 16)  |
340
                                (green << 8) |
341
                                (blue);
342
                        break;
343
                }
344
        }
345
 
346
        return 0;
347
}
348
 
349
struct chips_init_reg {
350
        unsigned char addr;
351
        unsigned char data;
352
};
353
 
354
static struct chips_init_reg chips_init_sr[] =
355
{
356
        {0x00, 0x03},           /* Reset register */
357
        {0x01, 0x01},           /* Clocking mode */
358
        {0x02, 0x0f},           /* Plane mask */
359
        {0x04, 0x0e}            /* Memory mode */
360
};
361
 
362
static struct chips_init_reg chips_init_gr[] =
363
{
364
        {0x03, 0x00},           /* Data rotate */
365
        {0x05, 0x00},           /* Graphics mode */
366
        {0x06, 0x01},           /* Miscellaneous */
367
        {0x08, 0x00}            /* Bit mask */
368
};
369
 
370
static struct chips_init_reg chips_init_ar[] =
371
{
372
        {0x10, 0x01},           /* Mode control */
373
        {0x11, 0x00},           /* Overscan */
374
        {0x12, 0x0f},           /* Memory plane enable */
375
        {0x13, 0x00}            /* Horizontal pixel panning */
376
};
377
 
378
static struct chips_init_reg chips_init_cr[] =
379
{
380
        {0x0c, 0x00},           /* Start address high */
381
        {0x0d, 0x00},           /* Start address low */
382
        {0x40, 0x00},           /* Extended Start Address */
383
        {0x41, 0x00},           /* Extended Start Address */
384
        {0x14, 0x00},           /* Underline location */
385
        {0x17, 0xe3},           /* CRT mode control */
386
        {0x70, 0x00}            /* Interlace control */
387
};
388
 
389
 
390
static struct chips_init_reg chips_init_fr[] =
391
{
392
        {0x01, 0x02},
393
        {0x03, 0x08},
394
        {0x08, 0xcc},
395
        {0x0a, 0x08},
396
        {0x18, 0x00},
397
        {0x1e, 0x80},
398
        {0x40, 0x83},
399
        {0x41, 0x00},
400
        {0x48, 0x13},
401
        {0x4d, 0x60},
402
        {0x4e, 0x0f},
403
 
404
        {0x0b, 0x01},
405
 
406
        {0x21, 0x51},
407
        {0x22, 0x1d},
408
        {0x23, 0x5f},
409
        {0x20, 0x4f},
410
        {0x34, 0x00},
411
        {0x24, 0x51},
412
        {0x25, 0x00},
413
        {0x27, 0x0b},
414
        {0x26, 0x00},
415
        {0x37, 0x80},
416
        {0x33, 0x0b},
417
        {0x35, 0x11},
418
        {0x36, 0x02},
419
        {0x31, 0xea},
420
        {0x32, 0x0c},
421
        {0x30, 0xdf},
422
        {0x10, 0x0c},
423
        {0x11, 0xe0},
424
        {0x12, 0x50},
425
        {0x13, 0x00},
426
        {0x16, 0x03},
427
        {0x17, 0xbd},
428
        {0x1a, 0x00},
429
};
430
 
431
 
432
static struct chips_init_reg chips_init_xr[] =
433
{
434
        {0xce, 0x00},           /* set default memory clock */
435
        {0xcc, 200 },           /* MCLK ratio M */
436
        {0xcd, 18  },           /* MCLK ratio N */
437
        {0xce, 0x90},           /* MCLK divisor = 2 */
438
 
439
        {0xc4, 209 },
440
        {0xc5, 118 },
441
        {0xc7, 32  },
442
        {0xcf, 0x06},
443
        {0x09, 0x01},           /* IO Control - CRT controller extensions */
444
        {0x0a, 0x02},           /* Frame buffer mapping */
445
        {0x0b, 0x01},           /* PCI burst write */
446
        {0x40, 0x03},           /* Memory access control */
447
        {0x80, 0x82},           /* Pixel pipeline configuration 0 */
448
        {0x81, 0x12},           /* Pixel pipeline configuration 1 */
449
        {0x82, 0x08},           /* Pixel pipeline configuration 2 */
450
 
451
        {0xd0, 0x0f},
452
        {0xd1, 0x01},
453
};
454
 
455
static void __devinit chips_hw_init(struct fb_info *p)
456
{
457
        int i;
458
 
459
        for (i = 0; i < ARRAY_SIZE(chips_init_xr); ++i)
460
                write_xr(chips_init_xr[i].addr, chips_init_xr[i].data);
461
        write_xr(0x81, 0x12);
462
        write_xr(0x82, 0x08);
463
        write_xr(0x20, 0x00);
464
        for (i = 0; i < ARRAY_SIZE(chips_init_sr); ++i)
465
                write_sr(chips_init_sr[i].addr, chips_init_sr[i].data);
466
        for (i = 0; i < ARRAY_SIZE(chips_init_gr); ++i)
467
                write_gr(chips_init_gr[i].addr, chips_init_gr[i].data);
468
        for (i = 0; i < ARRAY_SIZE(chips_init_ar); ++i)
469
                write_ar(chips_init_ar[i].addr, chips_init_ar[i].data);
470
        /* Enable video output in attribute index register */
471
        writeb(0x20, mmio_base + 0x780);
472
        for (i = 0; i < ARRAY_SIZE(chips_init_cr); ++i)
473
                write_cr(chips_init_cr[i].addr, chips_init_cr[i].data);
474
        for (i = 0; i < ARRAY_SIZE(chips_init_fr); ++i)
475
                write_fr(chips_init_fr[i].addr, chips_init_fr[i].data);
476
}
477
 
478
static struct fb_fix_screeninfo asiliantfb_fix __devinitdata = {
479
        .id =           "Asiliant 69000",
480
        .type =         FB_TYPE_PACKED_PIXELS,
481
        .visual =       FB_VISUAL_PSEUDOCOLOR,
482
        .accel =        FB_ACCEL_NONE,
483
        .line_length =  640,
484
        .smem_len =     0x200000,       /* 2MB */
485
};
486
 
487
static struct fb_var_screeninfo asiliantfb_var __devinitdata = {
488
        .xres           = 640,
489
        .yres           = 480,
490
        .xres_virtual   = 640,
491
        .yres_virtual   = 480,
492
        .bits_per_pixel = 8,
493
        .red            = { .length = 8 },
494
        .green          = { .length = 8 },
495
        .blue           = { .length = 8 },
496
        .height         = -1,
497
        .width          = -1,
498
        .vmode          = FB_VMODE_NONINTERLACED,
499
        .pixclock       = 39722,
500
        .left_margin    = 48,
501
        .right_margin   = 16,
502
        .upper_margin   = 33,
503
        .lower_margin   = 10,
504
        .hsync_len      = 96,
505
        .vsync_len      = 2,
506
};
507
 
508
static void __devinit init_asiliant(struct fb_info *p, unsigned long addr)
509
{
510
        p->fix                  = asiliantfb_fix;
511
        p->fix.smem_start       = addr;
512
        p->var                  = asiliantfb_var;
513
        p->fbops                = &asiliantfb_ops;
514
        p->flags                = FBINFO_DEFAULT;
515
 
516
        fb_alloc_cmap(&p->cmap, 256, 0);
517
 
518
        if (register_framebuffer(p) < 0) {
519
                printk(KERN_ERR "C&T 69000 framebuffer failed to register\n");
520
                return;
521
        }
522
 
523
        printk(KERN_INFO "fb%d: Asiliant 69000 frame buffer (%dK RAM detected)\n",
524
                p->node, p->fix.smem_len / 1024);
525
 
526
        writeb(0xff, mmio_base + 0x78c);
527
        chips_hw_init(p);
528
}
529
 
530
static int __devinit
531
asiliantfb_pci_init(struct pci_dev *dp, const struct pci_device_id *ent)
532
{
533
        unsigned long addr, size;
534
        struct fb_info *p;
535
 
536
        if ((dp->resource[0].flags & IORESOURCE_MEM) == 0)
537
                return -ENODEV;
538
        addr = pci_resource_start(dp, 0);
539
        size = pci_resource_len(dp, 0);
540
        if (addr == 0)
541
                return -ENODEV;
542
        if (!request_mem_region(addr, size, "asiliantfb"))
543
                return -EBUSY;
544
 
545
        p = framebuffer_alloc(sizeof(u32) * 16, &dp->dev);
546
        if (!p) {
547
                release_mem_region(addr, size);
548
                return -ENOMEM;
549
        }
550
        p->pseudo_palette = p->par;
551
        p->par = NULL;
552
 
553
        p->screen_base = ioremap(addr, 0x800000);
554
        if (p->screen_base == NULL) {
555
                release_mem_region(addr, size);
556
                framebuffer_release(p);
557
                return -ENOMEM;
558
        }
559
 
560
        pci_write_config_dword(dp, 4, 0x02800083);
561
        writeb(3, p->screen_base + 0x400784);
562
 
563
        init_asiliant(p, addr);
564
 
565
        pci_set_drvdata(dp, p);
566
        return 0;
567
}
568
 
569
static void __devexit asiliantfb_remove(struct pci_dev *dp)
570
{
571
        struct fb_info *p = pci_get_drvdata(dp);
572
 
573
        unregister_framebuffer(p);
574
        iounmap(p->screen_base);
575
        release_mem_region(pci_resource_start(dp, 0), pci_resource_len(dp, 0));
576
        pci_set_drvdata(dp, NULL);
577
        framebuffer_release(p);
578
}
579
 
580
static struct pci_device_id asiliantfb_pci_tbl[] __devinitdata = {
581
        { PCI_VENDOR_ID_CT, PCI_DEVICE_ID_CT_69000, PCI_ANY_ID, PCI_ANY_ID },
582
        { 0 }
583
};
584
 
585
MODULE_DEVICE_TABLE(pci, asiliantfb_pci_tbl);
586
 
587
static struct pci_driver asiliantfb_driver = {
588
        .name =         "asiliantfb",
589
        .id_table =     asiliantfb_pci_tbl,
590
        .probe =        asiliantfb_pci_init,
591
        .remove =       __devexit_p(asiliantfb_remove),
592
};
593
 
594
static int __init asiliantfb_init(void)
595
{
596
        if (fb_get_options("asiliantfb", NULL))
597
                return -ENODEV;
598
 
599
        return pci_register_driver(&asiliantfb_driver);
600
}
601
 
602
module_init(asiliantfb_init);
603
 
604
static void __exit asiliantfb_exit(void)
605
{
606
        pci_unregister_driver(&asiliantfb_driver);
607
}
608
 
609
MODULE_LICENSE("GPL");

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