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 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 #ifdef CONFIG_PM 447 static int lxfb_suspend(struct pci_dev *pdev, pm_message_t state) 448 { 449 struct fb_info *info = pci_get_drvdata(pdev); 450 451 if (state.event == PM_EVENT_SUSPEND) { 452 console_lock(); 453 lx_powerdown(info); 454 fb_set_suspend(info, 1); 455 console_unlock(); 456 } 457 458 /* there's no point in setting PCI states; we emulate PCI, so 459 * we don't end up getting power savings anyways */ 460 461 return 0; 462 } 463 464 static int lxfb_resume(struct pci_dev *pdev) 465 { 466 struct fb_info *info = pci_get_drvdata(pdev); 467 int ret; 468 469 console_lock(); 470 ret = lx_powerup(info); 471 if (ret) { 472 printk(KERN_ERR "lxfb: power up failed!\n"); 473 return ret; 474 } 475 476 fb_set_suspend(info, 0); 477 console_unlock(); 478 return 0; 479 } 480 #else 481 #define lxfb_suspend NULL 482 #define lxfb_resume NULL 483 #endif 484 485 static int lxfb_probe(struct pci_dev *pdev, const struct pci_device_id *id) 486 { 487 struct lxfb_par *par; 488 struct fb_info *info; 489 int ret; 490 491 struct fb_videomode *modedb_ptr; 492 unsigned int modedb_size; 493 494 info = lxfb_init_fbinfo(&pdev->dev); 495 496 if (info == NULL) 497 return -ENOMEM; 498 499 par = info->par; 500 501 ret = lxfb_map_video_memory(info, pdev); 502 503 if (ret < 0) { 504 dev_err(&pdev->dev, 505 "failed to map frame buffer or controller registers\n"); 506 goto err; 507 } 508 509 /* Set up the desired outputs */ 510 511 par->output = 0; 512 par->output |= (nopanel) ? 0 : OUTPUT_PANEL; 513 par->output |= (nocrt) ? 0 : OUTPUT_CRT; 514 515 /* Set up the mode database */ 516 517 get_modedb(&modedb_ptr, &modedb_size); 518 ret = fb_find_mode(&info->var, info, mode_option, 519 modedb_ptr, modedb_size, NULL, 16); 520 521 if (ret == 0 || ret == 4) { 522 dev_err(&pdev->dev, "could not find valid video mode\n"); 523 ret = -EINVAL; 524 goto err; 525 } 526 527 /* Clear the screen of garbage, unless noclear was specified, 528 * in which case we assume the user knows what he is doing */ 529 530 if (!noclear) 531 memset_io(info->screen_base, 0, info->fix.smem_len); 532 533 /* Set the mode */ 534 535 lxfb_check_var(&info->var, info); 536 lxfb_set_par(info); 537 538 pm_set_vt_switch(vt_switch); 539 540 if (register_framebuffer(info) < 0) { 541 ret = -EINVAL; 542 goto err; 543 } 544 pci_set_drvdata(pdev, info); 545 fb_info(info, "%s frame buffer device\n", info->fix.id); 546 547 return 0; 548 549 err: 550 if (info->screen_base) { 551 iounmap(info->screen_base); 552 pci_release_region(pdev, 0); 553 } 554 if (par->gp_regs) { 555 iounmap(par->gp_regs); 556 pci_release_region(pdev, 1); 557 } 558 if (par->dc_regs) { 559 iounmap(par->dc_regs); 560 pci_release_region(pdev, 2); 561 } 562 if (par->vp_regs) { 563 iounmap(par->vp_regs); 564 pci_release_region(pdev, 3); 565 } 566 567 fb_dealloc_cmap(&info->cmap); 568 framebuffer_release(info); 569 570 return ret; 571 } 572 573 static void lxfb_remove(struct pci_dev *pdev) 574 { 575 struct fb_info *info = pci_get_drvdata(pdev); 576 struct lxfb_par *par = info->par; 577 578 unregister_framebuffer(info); 579 580 iounmap(info->screen_base); 581 pci_release_region(pdev, 0); 582 583 iounmap(par->gp_regs); 584 pci_release_region(pdev, 1); 585 586 iounmap(par->dc_regs); 587 pci_release_region(pdev, 2); 588 589 iounmap(par->vp_regs); 590 pci_release_region(pdev, 3); 591 592 fb_dealloc_cmap(&info->cmap); 593 framebuffer_release(info); 594 } 595 596 static struct pci_device_id lxfb_id_table[] = { 597 { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_LX_VIDEO) }, 598 { 0, } 599 }; 600 601 MODULE_DEVICE_TABLE(pci, lxfb_id_table); 602 603 static struct pci_driver lxfb_driver = { 604 .name = "lxfb", 605 .id_table = lxfb_id_table, 606 .probe = lxfb_probe, 607 .remove = lxfb_remove, 608 .suspend = lxfb_suspend, 609 .resume = lxfb_resume, 610 }; 611 612 #ifndef MODULE 613 static int __init lxfb_setup(char *options) 614 { 615 char *opt; 616 617 if (!options || !*options) 618 return 0; 619 620 while ((opt = strsep(&options, ",")) != NULL) { 621 if (!*opt) 622 continue; 623 624 if (!strcmp(opt, "noclear")) 625 noclear = 1; 626 else if (!strcmp(opt, "nopanel")) 627 nopanel = 1; 628 else if (!strcmp(opt, "nocrt")) 629 nocrt = 1; 630 else 631 mode_option = opt; 632 } 633 634 return 0; 635 } 636 #endif 637 638 static int __init lxfb_init(void) 639 { 640 #ifndef MODULE 641 char *option = NULL; 642 643 if (fb_get_options("lxfb", &option)) 644 return -ENODEV; 645 646 lxfb_setup(option); 647 #endif 648 return pci_register_driver(&lxfb_driver); 649 } 650 static void __exit lxfb_cleanup(void) 651 { 652 pci_unregister_driver(&lxfb_driver); 653 } 654 655 module_init(lxfb_init); 656 module_exit(lxfb_cleanup); 657 658 module_param(mode_option, charp, 0); 659 MODULE_PARM_DESC(mode_option, "video mode (<x>x<y>[-<bpp>][@<refr>])"); 660 661 module_param(vram, int, 0); 662 MODULE_PARM_DESC(vram, "video memory size"); 663 664 module_param(vt_switch, int, 0); 665 MODULE_PARM_DESC(vt_switch, "enable VT switch during suspend/resume"); 666 667 MODULE_DESCRIPTION("Framebuffer driver for the AMD Geode LX"); 668 MODULE_LICENSE("GPL"); 669