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WIP FPC-III support
[linux/fpc-iii.git] / drivers / video / fbdev / geode / lxfb_core.c
blob66c81262d18f873645810dc28dd52efa12314b47
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Geode LX framebuffer driver.
4 *
5 * Copyright (C) 2007 Advanced Micro Devices, Inc.
6 * Built from gxfb (which is Copyright (C) 2006 Arcom Control Systems Ltd.)
7 */
8
9 #include <linux/module.h>
10 #include <linux/kernel.h>
11 #include <linux/errno.h>
12 #include <linux/string.h>
13 #include <linux/console.h>
14 #include <linux/mm.h>
15 #include <linux/suspend.h>
16 #include <linux/delay.h>
17 #include <linux/fb.h>
18 #include <linux/init.h>
19 #include <linux/pci.h>
20 #include <linux/uaccess.h>
21
22 #include <asm/olpc.h>
23
24 #include "lxfb.h"
25
26 static char *mode_option;
27 static int noclear, nopanel, nocrt;
28 static int vram;
29 static int vt_switch;
30
31 /* Most of these modes are sorted in ascending order, but
32 * since the first entry in this table is the "default" mode,
33 * we try to make it something sane - 640x480-60 is sane
34 */
35
36 static struct fb_videomode geode_modedb[] = {
37 /* 640x480-60 */
38 { NULL, 60, 640, 480, 39682, 48, 8, 25, 2, 88, 2,
39 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
40 FB_VMODE_NONINTERLACED, 0 },
41 /* 640x400-70 */
42 { NULL, 70, 640, 400, 39770, 40, 8, 28, 5, 96, 2,
43 FB_SYNC_HOR_HIGH_ACT,
44 FB_VMODE_NONINTERLACED, 0 },
45 /* 640x480-70 */
46 { NULL, 70, 640, 480, 35014, 88, 24, 15, 2, 64, 3,
47 0, FB_VMODE_NONINTERLACED, 0 },
48 /* 640x480-72 */
49 { NULL, 72, 640, 480, 32102, 120, 16, 20, 1, 40, 3,
50 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
51 FB_VMODE_NONINTERLACED, 0 },
52 /* 640x480-75 */
53 { NULL, 75, 640, 480, 31746, 120, 16, 16, 1, 64, 3,
54 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
55 FB_VMODE_NONINTERLACED, 0 },
56 /* 640x480-85 */
57 { NULL, 85, 640, 480, 27780, 80, 56, 25, 1, 56, 3,
58 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
59 FB_VMODE_NONINTERLACED, 0 },
60 /* 640x480-90 */
61 { NULL, 90, 640, 480, 26392, 96, 32, 22, 1, 64, 3,
62 0, FB_VMODE_NONINTERLACED, 0 },
63 /* 640x480-100 */
64 { NULL, 100, 640, 480, 23167, 104, 40, 25, 1, 64, 3,
65 0, FB_VMODE_NONINTERLACED, 0 },
66 /* 640x480-60 */
67 { NULL, 60, 640, 480, 39682, 48, 16, 25, 10, 88, 2,
68 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
69 FB_VMODE_NONINTERLACED, 0 },
70 /* 800x600-56 */
71 { NULL, 56, 800, 600, 27901, 128, 24, 22, 1, 72, 2,
72 0, FB_VMODE_NONINTERLACED, 0 },
73 /* 800x600-60 */
74 { NULL, 60, 800, 600, 25131, 72, 32, 23, 1, 136, 4,
75 0, FB_VMODE_NONINTERLACED, 0 },
76 /* 800x600-70 */
77 { NULL, 70, 800, 600, 21873, 120, 40, 21, 4, 80, 3,
78 0, FB_VMODE_NONINTERLACED, 0 },
79 /* 800x600-72 */
80 { NULL, 72, 800, 600, 20052, 64, 56, 23, 37, 120, 6,
81 0, FB_VMODE_NONINTERLACED, 0 },
82 /* 800x600-75 */
83 { NULL, 75, 800, 600, 20202, 160, 16, 21, 1, 80, 3,
84 0, FB_VMODE_NONINTERLACED, 0 },
85 /* 800x600-85 */
86 { NULL, 85, 800, 600, 17790, 152, 32, 27, 1, 64, 3,
87 0, FB_VMODE_NONINTERLACED, 0 },
88 /* 800x600-90 */
89 { NULL, 90, 800, 600, 16648, 128, 40, 28, 1, 88, 3,
90 0, FB_VMODE_NONINTERLACED, 0 },
91 /* 800x600-100 */
92 { NULL, 100, 800, 600, 14667, 136, 48, 27, 1, 88, 3,
93 0, FB_VMODE_NONINTERLACED, 0 },
94 /* 800x600-60 */
95 { NULL, 60, 800, 600, 25131, 88, 40, 23, 1, 128, 4,
96 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
97 FB_VMODE_NONINTERLACED, 0 },
98 /* 1024x768-60 */
99 { NULL, 60, 1024, 768, 15385, 160, 24, 29, 3, 136, 6,
100 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
101 FB_VMODE_NONINTERLACED, 0 },
102 /* 1024x768-70 */
103 { NULL, 70, 1024, 768, 13346, 144, 24, 29, 3, 136, 6,
104 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
105 FB_VMODE_NONINTERLACED, 0 },
106 /* 1024x768-72 */
107 { NULL, 72, 1024, 768, 12702, 168, 56, 29, 4, 112, 3,
108 0, FB_VMODE_NONINTERLACED, 0 },
109 /* 1024x768-75 */
110 { NULL, 75, 1024, 768, 12703, 176, 16, 28, 1, 96, 3,
111 0, FB_VMODE_NONINTERLACED, 0 },
112 /* 1024x768-85 */
113 { NULL, 85, 1024, 768, 10581, 208, 48, 36, 1, 96, 3,
114 0, FB_VMODE_NONINTERLACED, 0 },
115 /* 1024x768-90 */
116 { NULL, 90, 1024, 768, 9981, 176, 64, 37, 1, 112, 3,
117 0, FB_VMODE_NONINTERLACED, 0 },
118 /* 1024x768-100 */
119 { NULL, 100, 1024, 768, 8825, 184, 72, 42, 1, 112, 3,
120 0, FB_VMODE_NONINTERLACED, 0 },
121 /* 1024x768-60 */
122 { NULL, 60, 1024, 768, 15385, 160, 24, 29, 3, 136, 6,
123 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
124 FB_VMODE_NONINTERLACED, 0 },
125 /* 1152x864-60 */
126 { NULL, 60, 1152, 864, 12251, 184, 64, 27, 1, 120, 3,
127 0, FB_VMODE_NONINTERLACED, 0 },
128 /* 1152x864-70 */
129 { NULL, 70, 1152, 864, 10254, 192, 72, 32, 8, 120, 3,
130 0, FB_VMODE_NONINTERLACED, 0 },
131 /* 1152x864-72 */
132 { NULL, 72, 1152, 864, 9866, 200, 72, 33, 7, 128, 3,
133 0, FB_VMODE_NONINTERLACED, 0 },
134 /* 1152x864-75 */
135 { NULL, 75, 1152, 864, 9259, 256, 64, 32, 1, 128, 3,
136 0, FB_VMODE_NONINTERLACED, 0 },
137 /* 1152x864-85 */
138 { NULL, 85, 1152, 864, 8357, 200, 72, 37, 3, 128, 3,
139 0, FB_VMODE_NONINTERLACED, 0 },
140 /* 1152x864-90 */
141 { NULL, 90, 1152, 864, 7719, 208, 80, 42, 9, 128, 3,
142 0, FB_VMODE_NONINTERLACED, 0 },
143 /* 1152x864-100 */
144 { NULL, 100, 1152, 864, 6947, 208, 80, 48, 3, 128, 3,
145 0, FB_VMODE_NONINTERLACED, 0 },
146 /* 1152x864-60 */
147 { NULL, 60, 1152, 864, 12251, 184, 64, 27, 1, 120, 3,
148 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
149 FB_VMODE_NONINTERLACED, 0 },
150 /* 1280x1024-60 */
151 { NULL, 60, 1280, 1024, 9262, 248, 48, 38, 1, 112, 3,
152 0, FB_VMODE_NONINTERLACED, 0 },
153 /* 1280x1024-70 */
154 { NULL, 70, 1280, 1024, 7719, 224, 88, 38, 6, 136, 3,
155 0, FB_VMODE_NONINTERLACED, 0 },
156 /* 1280x1024-72 */
157 { NULL, 72, 1280, 1024, 7490, 224, 88, 39, 7, 136, 3,
158 0, FB_VMODE_NONINTERLACED, 0 },
159 /* 1280x1024-75 */
160 { NULL, 75, 1280, 1024, 7409, 248, 16, 38, 1, 144, 3,
161 0, FB_VMODE_NONINTERLACED, 0 },
162 /* 1280x1024-85 */
163 { NULL, 85, 1280, 1024, 6351, 224, 64, 44, 1, 160, 3,
164 0, FB_VMODE_NONINTERLACED, 0 },
165 /* 1280x1024-90 */
166 { NULL, 90, 1280, 1024, 5791, 240, 96, 51, 12, 144, 3,
167 0, FB_VMODE_NONINTERLACED, 0 },
168 /* 1280x1024-100 */
169 { NULL, 100, 1280, 1024, 5212, 240, 96, 57, 6, 144, 3,
170 0, FB_VMODE_NONINTERLACED, 0 },
171 /* 1280x1024-60 */
172 { NULL, 60, 1280, 1024, 9262, 248, 48, 38, 1, 112, 3,
173 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
174 FB_VMODE_NONINTERLACED, 0 },
175 /* 1600x1200-60 */
176 { NULL, 60, 1600, 1200, 6172, 304, 64, 46, 1, 192, 3,
177 0, FB_VMODE_NONINTERLACED, 0 },
178 /* 1600x1200-70 */
179 { NULL, 70, 1600, 1200, 5291, 304, 64, 46, 1, 192, 3,
180 0, FB_VMODE_NONINTERLACED, 0 },
181 /* 1600x1200-72 */
182 { NULL, 72, 1600, 1200, 5053, 288, 112, 47, 13, 176, 3,
183 0, FB_VMODE_NONINTERLACED, 0 },
184 /* 1600x1200-75 */
185 { NULL, 75, 1600, 1200, 4938, 304, 64, 46, 1, 192, 3,
186 0, FB_VMODE_NONINTERLACED, 0 },
187 /* 1600x1200-85 */
188 { NULL, 85, 1600, 1200, 4357, 304, 64, 46, 1, 192, 3,
189 0, FB_VMODE_NONINTERLACED, 0 },
190 /* 1600x1200-90 */
191 { NULL, 90, 1600, 1200, 3981, 304, 128, 60, 1, 176, 3,
192 0, FB_VMODE_NONINTERLACED, 0 },
193 /* 1600x1200-100 */
194 { NULL, 100, 1600, 1200, 3563, 304, 128, 67, 1, 176, 3,
195 0, FB_VMODE_NONINTERLACED, 0 },
196 /* 1600x1200-60 */
197 { NULL, 60, 1600, 1200, 6172, 304, 64, 46, 1, 192, 3,
198 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
199 FB_VMODE_NONINTERLACED, 0 },
200 /* 1920x1440-60 */
201 { NULL, 60, 1920, 1440, 4273, 344, 128, 56, 1, 208, 3,
202 0, FB_VMODE_NONINTERLACED, 0 },
203 /* 1920x1440-70 */
204 { NULL, 70, 1920, 1440, 3593, 360, 152, 55, 8, 208, 3,
205 0, FB_VMODE_NONINTERLACED, 0 },
206 /* 1920x1440-72 */
207 { NULL, 72, 1920, 1440, 3472, 360, 152, 68, 4, 208, 3,
208 0, FB_VMODE_NONINTERLACED, 0 },
209 /* 1920x1440-75 */
210 { NULL, 75, 1920, 1440, 3367, 352, 144, 56, 1, 224, 3,
211 0, FB_VMODE_NONINTERLACED, 0 },
212 /* 1920x1440-85 */
213 { NULL, 85, 1920, 1440, 2929, 368, 152, 68, 1, 216, 3,
214 0, FB_VMODE_NONINTERLACED, 0 },
215 };
216
217 static struct fb_videomode olpc_dcon_modedb[] = {
218 /* The only mode the DCON has is 1200x900 */
219 { NULL, 50, 1200, 900, 17460, 24, 8, 4, 5, 8, 3,
220 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
221 FB_VMODE_NONINTERLACED, 0 }
222 };
223
224 static void get_modedb(struct fb_videomode **modedb, unsigned int *size)
225 {
226 if (olpc_has_dcon()) {
227 *modedb = (struct fb_videomode *) olpc_dcon_modedb;
228 *size = ARRAY_SIZE(olpc_dcon_modedb);
229 } else {
230 *modedb = (struct fb_videomode *) geode_modedb;
231 *size = ARRAY_SIZE(geode_modedb);
232 }
233 }
234
235 static int lxfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
236 {
237 if (var->xres > 1920 || var->yres > 1440)
238 return -EINVAL;
239
240 if (var->bits_per_pixel == 32) {
241 var->red.offset = 16; var->red.length = 8;
242 var->green.offset = 8; var->green.length = 8;
243 var->blue.offset = 0; var->blue.length = 8;
244 } else if (var->bits_per_pixel == 16) {
245 var->red.offset = 11; var->red.length = 5;
246 var->green.offset = 5; var->green.length = 6;
247 var->blue.offset = 0; var->blue.length = 5;
248 } else if (var->bits_per_pixel == 8) {
249 var->red.offset = 0; var->red.length = 8;
250 var->green.offset = 0; var->green.length = 8;
251 var->blue.offset = 0; var->blue.length = 8;
252 } else
253 return -EINVAL;
254
255 var->transp.offset = 0; var->transp.length = 0;
256
257 /* Enough video memory? */
258 if ((lx_get_pitch(var->xres, var->bits_per_pixel) * var->yres)
259 > info->fix.smem_len)
260 return -EINVAL;
261
262 return 0;
263 }
264
265 static int lxfb_set_par(struct fb_info *info)
266 {
267 if (info->var.bits_per_pixel > 8)
268 info->fix.visual = FB_VISUAL_TRUECOLOR;
269 else
270 info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
271
272 info->fix.line_length = lx_get_pitch(info->var.xres,
273 info->var.bits_per_pixel);
274
275 lx_set_mode(info);
276 return 0;
277 }
278
279 static inline u_int chan_to_field(u_int chan, struct fb_bitfield *bf)
280 {
281 chan &= 0xffff;
282 chan >>= 16 - bf->length;
283 return chan << bf->offset;
284 }
285
286 static int lxfb_setcolreg(unsigned regno, unsigned red, unsigned green,
287 unsigned blue, unsigned transp,
288 struct fb_info *info)
289 {
290 if (info->var.grayscale) {
291 /* grayscale = 0.30*R + 0.59*G + 0.11*B */
292 red = green = blue = (red * 77 + green * 151 + blue * 28) >> 8;
293 }
294
295 /* Truecolor has hardware independent palette */
296 if (info->fix.visual == FB_VISUAL_TRUECOLOR) {
297 u32 *pal = info->pseudo_palette;
298 u32 v;
299
300 if (regno >= 16)
301 return -EINVAL;
302
303 v = chan_to_field(red, &info->var.red);
304 v |= chan_to_field(green, &info->var.green);
305 v |= chan_to_field(blue, &info->var.blue);
306
307 pal[regno] = v;
308 } else {
309 if (regno >= 256)
310 return -EINVAL;
311
312 lx_set_palette_reg(info, regno, red, green, blue);
313 }
314
315 return 0;
316 }
317
318 static int lxfb_blank(int blank_mode, struct fb_info *info)
319 {
320 return lx_blank_display(info, blank_mode);
321 }
322
323
324 static int lxfb_map_video_memory(struct fb_info *info, struct pci_dev *dev)
325 {
326 struct lxfb_par *par = info->par;
327 int ret;
328
329 ret = pci_enable_device(dev);
330
331 if (ret)
332 return ret;
333
334 ret = pci_request_region(dev, 0, "lxfb-framebuffer");
335
336 if (ret)
337 return ret;
338
339 ret = pci_request_region(dev, 1, "lxfb-gp");
340
341 if (ret)
342 return ret;
343
344 ret = pci_request_region(dev, 2, "lxfb-vg");
345
346 if (ret)
347 return ret;
348
349 ret = pci_request_region(dev, 3, "lxfb-vp");
350
351 if (ret)
352 return ret;
353
354 info->fix.smem_start = pci_resource_start(dev, 0);
355 info->fix.smem_len = vram ? vram : lx_framebuffer_size();
356
357 info->screen_base = ioremap(info->fix.smem_start, info->fix.smem_len);
358
359 ret = -ENOMEM;
360
361 if (info->screen_base == NULL)
362 return ret;
363
364 par->gp_regs = pci_ioremap_bar(dev, 1);
365
366 if (par->gp_regs == NULL)
367 return ret;
368
369 par->dc_regs = pci_ioremap_bar(dev, 2);
370
371 if (par->dc_regs == NULL)
372 return ret;
373
374 par->vp_regs = pci_ioremap_bar(dev, 3);
375
376 if (par->vp_regs == NULL)
377 return ret;
378
379 write_dc(par, DC_UNLOCK, DC_UNLOCK_UNLOCK);
380 write_dc(par, DC_GLIU0_MEM_OFFSET, info->fix.smem_start & 0xFF000000);
381 write_dc(par, DC_UNLOCK, DC_UNLOCK_LOCK);
382
383 dev_info(&dev->dev, "%d KB of video memory at 0x%lx\n",
384 info->fix.smem_len / 1024, info->fix.smem_start);
385
386 return 0;
387 }
388
389 static const struct fb_ops lxfb_ops = {
390 .owner = THIS_MODULE,
391 .fb_check_var = lxfb_check_var,
392 .fb_set_par = lxfb_set_par,
393 .fb_setcolreg = lxfb_setcolreg,
394 .fb_blank = lxfb_blank,
395 /* No HW acceleration for now. */
396 .fb_fillrect = cfb_fillrect,
397 .fb_copyarea = cfb_copyarea,
398 .fb_imageblit = cfb_imageblit,
399 };
400
401 static struct fb_info *lxfb_init_fbinfo(struct device *dev)
402 {
403 struct lxfb_par *par;
404 struct fb_info *info;
405
406 /* Alloc enough space for the pseudo palette. */
407 info = framebuffer_alloc(sizeof(struct lxfb_par) + sizeof(u32) * 16,
408 dev);
409 if (!info)
410 return NULL;
411
412 par = info->par;
413
414 strcpy(info->fix.id, "Geode LX");
415
416 info->fix.type = FB_TYPE_PACKED_PIXELS;
417 info->fix.type_aux = 0;
418 info->fix.xpanstep = 0;
419 info->fix.ypanstep = 0;
420 info->fix.ywrapstep = 0;
421 info->fix.accel = FB_ACCEL_NONE;
422
423 info->var.nonstd = 0;
424 info->var.activate = FB_ACTIVATE_NOW;
425 info->var.height = -1;
426 info->var.width = -1;
427 info->var.accel_flags = 0;
428 info->var.vmode = FB_VMODE_NONINTERLACED;
429
430 info->fbops = &lxfb_ops;
431 info->flags = FBINFO_DEFAULT;
432 info->node = -1;
433
434 info->pseudo_palette = (void *)par + sizeof(struct lxfb_par);
435
436 if (fb_alloc_cmap(&info->cmap, 256, 0) < 0) {
437 framebuffer_release(info);
438 return NULL;
439 }
440
441 info->var.grayscale = 0;
442
443 return info;
444 }
445
446 static int __maybe_unused lxfb_suspend(struct device *dev)
447 {
448 struct fb_info *info = dev_get_drvdata(dev);
449
450 console_lock();
451 lx_powerdown(info);
452 fb_set_suspend(info, 1);
453 console_unlock();
454
455 /* there's no point in setting PCI states; we emulate PCI, so
456 * we don't end up getting power savings anyways */
457
458 return 0;
459 }
460
461 static int __maybe_unused lxfb_resume(struct device *dev)
462 {
463 struct fb_info *info = dev_get_drvdata(dev);
464 int ret;
465
466 console_lock();
467 ret = lx_powerup(info);
468 if (ret) {
469 printk(KERN_ERR "lxfb: power up failed!\n");
470 return ret;
471 }
472
473 fb_set_suspend(info, 0);
474 console_unlock();
475 return 0;
476 }
477
478 static int lxfb_probe(struct pci_dev *pdev, const struct pci_device_id *id)
479 {
480 struct lxfb_par *par;
481 struct fb_info *info;
482 int ret;
483
484 struct fb_videomode *modedb_ptr;
485 unsigned int modedb_size;
486
487 info = lxfb_init_fbinfo(&pdev->dev);
488
489 if (info == NULL)
490 return -ENOMEM;
491
492 par = info->par;
493
494 ret = lxfb_map_video_memory(info, pdev);
495
496 if (ret < 0) {
497 dev_err(&pdev->dev,
498 "failed to map frame buffer or controller registers\n");
499 goto err;
500 }
501
502 /* Set up the desired outputs */
503
504 par->output = 0;
505 par->output |= (nopanel) ? 0 : OUTPUT_PANEL;
506 par->output |= (nocrt) ? 0 : OUTPUT_CRT;
507
508 /* Set up the mode database */
509
510 get_modedb(&modedb_ptr, &modedb_size);
511 ret = fb_find_mode(&info->var, info, mode_option,
512 modedb_ptr, modedb_size, NULL, 16);
513
514 if (ret == 0 || ret == 4) {
515 dev_err(&pdev->dev, "could not find valid video mode\n");
516 ret = -EINVAL;
517 goto err;
518 }
519
520 /* Clear the screen of garbage, unless noclear was specified,
521 * in which case we assume the user knows what he is doing */
522
523 if (!noclear)
524 memset_io(info->screen_base, 0, info->fix.smem_len);
525
526 /* Set the mode */
527
528 lxfb_check_var(&info->var, info);
529 lxfb_set_par(info);
530
531 pm_set_vt_switch(vt_switch);
532
533 if (register_framebuffer(info) < 0) {
534 ret = -EINVAL;
535 goto err;
536 }
537 pci_set_drvdata(pdev, info);
538 fb_info(info, "%s frame buffer device\n", info->fix.id);
539
540 return 0;
541
542 err:
543 if (info->screen_base) {
544 iounmap(info->screen_base);
545 pci_release_region(pdev, 0);
546 }
547 if (par->gp_regs) {
548 iounmap(par->gp_regs);
549 pci_release_region(pdev, 1);
550 }
551 if (par->dc_regs) {
552 iounmap(par->dc_regs);
553 pci_release_region(pdev, 2);
554 }
555 if (par->vp_regs) {
556 iounmap(par->vp_regs);
557 pci_release_region(pdev, 3);
558 }
559
560 fb_dealloc_cmap(&info->cmap);
561 framebuffer_release(info);
562
563 return ret;
564 }
565
566 static void lxfb_remove(struct pci_dev *pdev)
567 {
568 struct fb_info *info = pci_get_drvdata(pdev);
569 struct lxfb_par *par = info->par;
570
571 unregister_framebuffer(info);
572
573 iounmap(info->screen_base);
574 pci_release_region(pdev, 0);
575
576 iounmap(par->gp_regs);
577 pci_release_region(pdev, 1);
578
579 iounmap(par->dc_regs);
580 pci_release_region(pdev, 2);
581
582 iounmap(par->vp_regs);
583 pci_release_region(pdev, 3);
584
585 fb_dealloc_cmap(&info->cmap);
586 framebuffer_release(info);
587 }
588
589 static struct pci_device_id lxfb_id_table[] = {
590 { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_LX_VIDEO) },
591 { 0, }
592 };
593
594 MODULE_DEVICE_TABLE(pci, lxfb_id_table);
595
596 static const struct dev_pm_ops lxfb_pm_ops = {
597 #ifdef CONFIG_PM_SLEEP
598 .suspend = lxfb_suspend,
599 .resume = lxfb_resume,
600 .freeze = NULL,
601 .thaw = lxfb_resume,
602 .poweroff = NULL,
603 .restore = lxfb_resume,
604 #endif
605 };
606
607 static struct pci_driver lxfb_driver = {
608 .name = "lxfb",
609 .id_table = lxfb_id_table,
610 .probe = lxfb_probe,
611 .remove = lxfb_remove,
612 .driver.pm = &lxfb_pm_ops,
613 };
614
615 #ifndef MODULE
616 static int __init lxfb_setup(char *options)
617 {
618 char *opt;
619
620 if (!options || !*options)
621 return 0;
622
623 while ((opt = strsep(&options, ",")) != NULL) {
624 if (!*opt)
625 continue;
626
627 if (!strcmp(opt, "noclear"))
628 noclear = 1;
629 else if (!strcmp(opt, "nopanel"))
630 nopanel = 1;
631 else if (!strcmp(opt, "nocrt"))
632 nocrt = 1;
633 else
634 mode_option = opt;
635 }
636
637 return 0;
638 }
639 #endif
640
641 static int __init lxfb_init(void)
642 {
643 #ifndef MODULE
644 char *option = NULL;
645
646 if (fb_get_options("lxfb", &option))
647 return -ENODEV;
648
649 lxfb_setup(option);
650 #endif
651 return pci_register_driver(&lxfb_driver);
652 }
653 static void __exit lxfb_cleanup(void)
654 {
655 pci_unregister_driver(&lxfb_driver);
656 }
657
658 module_init(lxfb_init);
659 module_exit(lxfb_cleanup);
660
661 module_param(mode_option, charp, 0);
662 MODULE_PARM_DESC(mode_option, "video mode (<x>x<y>[-<bpp>][@<refr>])");
663
664 module_param(vram, int, 0);
665 MODULE_PARM_DESC(vram, "video memory size");
666
667 module_param(vt_switch, int, 0);
668 MODULE_PARM_DESC(vt_switch, "enable VT switch during suspend/resume");
669
670 MODULE_DESCRIPTION("Framebuffer driver for the AMD Geode LX");
671 MODULE_LICENSE("GPL");
Linux with added FPC-III support