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/aperture.h> 10 #include <linux/module.h> 11 #include <linux/kernel.h> 12 #include <linux/errno.h> 13 #include <linux/string.h> 14 #include <linux/console.h> 15 #include <linux/mm.h> 16 #include <linux/suspend.h> 17 #include <linux/delay.h> 18 #include <linux/fb.h> 19 #include <linux/init.h> 20 #include <linux/pci.h> 21 #include <linux/uaccess.h> 22 23 #include <asm/olpc.h> 24 25 #include "lxfb.h" 26 27 static char *mode_option; 28 static int noclear, nopanel, nocrt; 29 static int vram; 30 static int vt_switch; 31 32 /* Most of these modes are sorted in ascending order, but 33 * since the first entry in this table is the "default" mode, 34 * we try to make it something sane - 640x480-60 is sane 35 */ 36 37 static struct fb_videomode geode_modedb[] = { 38 /* 640x480-60 */ 39 { NULL, 60, 640, 480, 39682, 48, 8, 25, 2, 88, 2, 40 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, 41 FB_VMODE_NONINTERLACED, 0 }, 42 /* 640x400-70 */ 43 { NULL, 70, 640, 400, 39770, 40, 8, 28, 5, 96, 2, 44 FB_SYNC_HOR_HIGH_ACT, 45 FB_VMODE_NONINTERLACED, 0 }, 46 /* 640x480-70 */ 47 { NULL, 70, 640, 480, 35014, 88, 24, 15, 2, 64, 3, 48 0, FB_VMODE_NONINTERLACED, 0 }, 49 /* 640x480-72 */ 50 { NULL, 72, 640, 480, 32102, 120, 16, 20, 1, 40, 3, 51 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, 52 FB_VMODE_NONINTERLACED, 0 }, 53 /* 640x480-75 */ 54 { NULL, 75, 640, 480, 31746, 120, 16, 16, 1, 64, 3, 55 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, 56 FB_VMODE_NONINTERLACED, 0 }, 57 /* 640x480-85 */ 58 { NULL, 85, 640, 480, 27780, 80, 56, 25, 1, 56, 3, 59 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, 60 FB_VMODE_NONINTERLACED, 0 }, 61 /* 640x480-90 */ 62 { NULL, 90, 640, 480, 26392, 96, 32, 22, 1, 64, 3, 63 0, FB_VMODE_NONINTERLACED, 0 }, 64 /* 640x480-100 */ 65 { NULL, 100, 640, 480, 23167, 104, 40, 25, 1, 64, 3, 66 0, FB_VMODE_NONINTERLACED, 0 }, 67 /* 640x480-60 */ 68 { NULL, 60, 640, 480, 39682, 48, 16, 25, 10, 88, 2, 69 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, 70 FB_VMODE_NONINTERLACED, 0 }, 71 /* 800x600-56 */ 72 { NULL, 56, 800, 600, 27901, 128, 24, 22, 1, 72, 2, 73 0, FB_VMODE_NONINTERLACED, 0 }, 74 /* 800x600-60 */ 75 { NULL, 60, 800, 600, 25131, 72, 32, 23, 1, 136, 4, 76 0, FB_VMODE_NONINTERLACED, 0 }, 77 /* 800x600-70 */ 78 { NULL, 70, 800, 600, 21873, 120, 40, 21, 4, 80, 3, 79 0, FB_VMODE_NONINTERLACED, 0 }, 80 /* 800x600-72 */ 81 { NULL, 72, 800, 600, 20052, 64, 56, 23, 37, 120, 6, 82 0, FB_VMODE_NONINTERLACED, 0 }, 83 /* 800x600-75 */ 84 { NULL, 75, 800, 600, 20202, 160, 16, 21, 1, 80, 3, 85 0, FB_VMODE_NONINTERLACED, 0 }, 86 /* 800x600-85 */ 87 { NULL, 85, 800, 600, 17790, 152, 32, 27, 1, 64, 3, 88 0, FB_VMODE_NONINTERLACED, 0 }, 89 /* 800x600-90 */ 90 { NULL, 90, 800, 600, 16648, 128, 40, 28, 1, 88, 3, 91 0, FB_VMODE_NONINTERLACED, 0 }, 92 /* 800x600-100 */ 93 { NULL, 100, 800, 600, 14667, 136, 48, 27, 1, 88, 3, 94 0, FB_VMODE_NONINTERLACED, 0 }, 95 /* 800x600-60 */ 96 { NULL, 60, 800, 600, 25131, 88, 40, 23, 1, 128, 4, 97 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, 98 FB_VMODE_NONINTERLACED, 0 }, 99 /* 1024x768-60 */ 100 { NULL, 60, 1024, 768, 15385, 160, 24, 29, 3, 136, 6, 101 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, 102 FB_VMODE_NONINTERLACED, 0 }, 103 /* 1024x768-70 */ 104 { NULL, 70, 1024, 768, 13346, 144, 24, 29, 3, 136, 6, 105 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, 106 FB_VMODE_NONINTERLACED, 0 }, 107 /* 1024x768-72 */ 108 { NULL, 72, 1024, 768, 12702, 168, 56, 29, 4, 112, 3, 109 0, FB_VMODE_NONINTERLACED, 0 }, 110 /* 1024x768-75 */ 111 { NULL, 75, 1024, 768, 12703, 176, 16, 28, 1, 96, 3, 112 0, FB_VMODE_NONINTERLACED, 0 }, 113 /* 1024x768-85 */ 114 { NULL, 85, 1024, 768, 10581, 208, 48, 36, 1, 96, 3, 115 0, FB_VMODE_NONINTERLACED, 0 }, 116 /* 1024x768-90 */ 117 { NULL, 90, 1024, 768, 9981, 176, 64, 37, 1, 112, 3, 118 0, FB_VMODE_NONINTERLACED, 0 }, 119 /* 1024x768-100 */ 120 { NULL, 100, 1024, 768, 8825, 184, 72, 42, 1, 112, 3, 121 0, FB_VMODE_NONINTERLACED, 0 }, 122 /* 1024x768-60 */ 123 { NULL, 60, 1024, 768, 15385, 160, 24, 29, 3, 136, 6, 124 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, 125 FB_VMODE_NONINTERLACED, 0 }, 126 /* 1152x864-60 */ 127 { NULL, 60, 1152, 864, 12251, 184, 64, 27, 1, 120, 3, 128 0, FB_VMODE_NONINTERLACED, 0 }, 129 /* 1152x864-70 */ 130 { NULL, 70, 1152, 864, 10254, 192, 72, 32, 8, 120, 3, 131 0, FB_VMODE_NONINTERLACED, 0 }, 132 /* 1152x864-72 */ 133 { NULL, 72, 1152, 864, 9866, 200, 72, 33, 7, 128, 3, 134 0, FB_VMODE_NONINTERLACED, 0 }, 135 /* 1152x864-75 */ 136 { NULL, 75, 1152, 864, 9259, 256, 64, 32, 1, 128, 3, 137 0, FB_VMODE_NONINTERLACED, 0 }, 138 /* 1152x864-85 */ 139 { NULL, 85, 1152, 864, 8357, 200, 72, 37, 3, 128, 3, 140 0, FB_VMODE_NONINTERLACED, 0 }, 141 /* 1152x864-90 */ 142 { NULL, 90, 1152, 864, 7719, 208, 80, 42, 9, 128, 3, 143 0, FB_VMODE_NONINTERLACED, 0 }, 144 /* 1152x864-100 */ 145 { NULL, 100, 1152, 864, 6947, 208, 80, 48, 3, 128, 3, 146 0, FB_VMODE_NONINTERLACED, 0 }, 147 /* 1152x864-60 */ 148 { NULL, 60, 1152, 864, 12251, 184, 64, 27, 1, 120, 3, 149 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, 150 FB_VMODE_NONINTERLACED, 0 }, 151 /* 1280x1024-60 */ 152 { NULL, 60, 1280, 1024, 9262, 248, 48, 38, 1, 112, 3, 153 0, FB_VMODE_NONINTERLACED, 0 }, 154 /* 1280x1024-70 */ 155 { NULL, 70, 1280, 1024, 7719, 224, 88, 38, 6, 136, 3, 156 0, FB_VMODE_NONINTERLACED, 0 }, 157 /* 1280x1024-72 */ 158 { NULL, 72, 1280, 1024, 7490, 224, 88, 39, 7, 136, 3, 159 0, FB_VMODE_NONINTERLACED, 0 }, 160 /* 1280x1024-75 */ 161 { NULL, 75, 1280, 1024, 7409, 248, 16, 38, 1, 144, 3, 162 0, FB_VMODE_NONINTERLACED, 0 }, 163 /* 1280x1024-85 */ 164 { NULL, 85, 1280, 1024, 6351, 224, 64, 44, 1, 160, 3, 165 0, FB_VMODE_NONINTERLACED, 0 }, 166 /* 1280x1024-90 */ 167 { NULL, 90, 1280, 1024, 5791, 240, 96, 51, 12, 144, 3, 168 0, FB_VMODE_NONINTERLACED, 0 }, 169 /* 1280x1024-100 */ 170 { NULL, 100, 1280, 1024, 5212, 240, 96, 57, 6, 144, 3, 171 0, FB_VMODE_NONINTERLACED, 0 }, 172 /* 1280x1024-60 */ 173 { NULL, 60, 1280, 1024, 9262, 248, 48, 38, 1, 112, 3, 174 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, 175 FB_VMODE_NONINTERLACED, 0 }, 176 /* 1600x1200-60 */ 177 { NULL, 60, 1600, 1200, 6172, 304, 64, 46, 1, 192, 3, 178 0, FB_VMODE_NONINTERLACED, 0 }, 179 /* 1600x1200-70 */ 180 { NULL, 70, 1600, 1200, 5291, 304, 64, 46, 1, 192, 3, 181 0, FB_VMODE_NONINTERLACED, 0 }, 182 /* 1600x1200-72 */ 183 { NULL, 72, 1600, 1200, 5053, 288, 112, 47, 13, 176, 3, 184 0, FB_VMODE_NONINTERLACED, 0 }, 185 /* 1600x1200-75 */ 186 { NULL, 75, 1600, 1200, 4938, 304, 64, 46, 1, 192, 3, 187 0, FB_VMODE_NONINTERLACED, 0 }, 188 /* 1600x1200-85 */ 189 { NULL, 85, 1600, 1200, 4357, 304, 64, 46, 1, 192, 3, 190 0, FB_VMODE_NONINTERLACED, 0 }, 191 /* 1600x1200-90 */ 192 { NULL, 90, 1600, 1200, 3981, 304, 128, 60, 1, 176, 3, 193 0, FB_VMODE_NONINTERLACED, 0 }, 194 /* 1600x1200-100 */ 195 { NULL, 100, 1600, 1200, 3563, 304, 128, 67, 1, 176, 3, 196 0, FB_VMODE_NONINTERLACED, 0 }, 197 /* 1600x1200-60 */ 198 { NULL, 60, 1600, 1200, 6172, 304, 64, 46, 1, 192, 3, 199 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, 200 FB_VMODE_NONINTERLACED, 0 }, 201 /* 1920x1440-60 */ 202 { NULL, 60, 1920, 1440, 4273, 344, 128, 56, 1, 208, 3, 203 0, FB_VMODE_NONINTERLACED, 0 }, 204 /* 1920x1440-70 */ 205 { NULL, 70, 1920, 1440, 3593, 360, 152, 55, 8, 208, 3, 206 0, FB_VMODE_NONINTERLACED, 0 }, 207 /* 1920x1440-72 */ 208 { NULL, 72, 1920, 1440, 3472, 360, 152, 68, 4, 208, 3, 209 0, FB_VMODE_NONINTERLACED, 0 }, 210 /* 1920x1440-75 */ 211 { NULL, 75, 1920, 1440, 3367, 352, 144, 56, 1, 224, 3, 212 0, FB_VMODE_NONINTERLACED, 0 }, 213 /* 1920x1440-85 */ 214 { NULL, 85, 1920, 1440, 2929, 368, 152, 68, 1, 216, 3, 215 0, FB_VMODE_NONINTERLACED, 0 }, 216 }; 217 218 static struct fb_videomode olpc_dcon_modedb[] = { 219 /* The only mode the DCON has is 1200x900 */ 220 { NULL, 50, 1200, 900, 17460, 24, 8, 4, 5, 8, 3, 221 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, 222 FB_VMODE_NONINTERLACED, 0 } 223 }; 224 225 static void get_modedb(struct fb_videomode **modedb, unsigned int *size) 226 { 227 if (olpc_has_dcon()) { 228 *modedb = (struct fb_videomode *) olpc_dcon_modedb; 229 *size = ARRAY_SIZE(olpc_dcon_modedb); 230 } else { 231 *modedb = (struct fb_videomode *) geode_modedb; 232 *size = ARRAY_SIZE(geode_modedb); 233 } 234 } 235 236 static int lxfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) 237 { 238 if (var->xres > 1920 || var->yres > 1440) 239 return -EINVAL; 240 241 if (var->bits_per_pixel == 32) { 242 var->red.offset = 16; var->red.length = 8; 243 var->green.offset = 8; var->green.length = 8; 244 var->blue.offset = 0; var->blue.length = 8; 245 } else if (var->bits_per_pixel == 16) { 246 var->red.offset = 11; var->red.length = 5; 247 var->green.offset = 5; var->green.length = 6; 248 var->blue.offset = 0; var->blue.length = 5; 249 } else if (var->bits_per_pixel == 8) { 250 var->red.offset = 0; var->red.length = 8; 251 var->green.offset = 0; var->green.length = 8; 252 var->blue.offset = 0; var->blue.length = 8; 253 } else 254 return -EINVAL; 255 256 var->transp.offset = 0; var->transp.length = 0; 257 258 /* Enough video memory? */ 259 if ((lx_get_pitch(var->xres, var->bits_per_pixel) * var->yres) 260 > info->fix.smem_len) 261 return -EINVAL; 262 263 return 0; 264 } 265 266 static int lxfb_set_par(struct fb_info *info) 267 { 268 if (info->var.bits_per_pixel > 8) 269 info->fix.visual = FB_VISUAL_TRUECOLOR; 270 else 271 info->fix.visual = FB_VISUAL_PSEUDOCOLOR; 272 273 info->fix.line_length = lx_get_pitch(info->var.xres, 274 info->var.bits_per_pixel); 275 276 lx_set_mode(info); 277 return 0; 278 } 279 280 static inline u_int chan_to_field(u_int chan, struct fb_bitfield *bf) 281 { 282 chan &= 0xffff; 283 chan >>= 16 - bf->length; 284 return chan << bf->offset; 285 } 286 287 static int lxfb_setcolreg(unsigned regno, unsigned red, unsigned green, 288 unsigned blue, unsigned transp, 289 struct fb_info *info) 290 { 291 if (info->var.grayscale) { 292 /* grayscale = 0.30*R + 0.59*G + 0.11*B */ 293 red = green = blue = (red * 77 + green * 151 + blue * 28) >> 8; 294 } 295 296 /* Truecolor has hardware independent palette */ 297 if (info->fix.visual == FB_VISUAL_TRUECOLOR) { 298 u32 *pal = info->pseudo_palette; 299 u32 v; 300 301 if (regno >= 16) 302 return -EINVAL; 303 304 v = chan_to_field(red, &info->var.red); 305 v |= chan_to_field(green, &info->var.green); 306 v |= chan_to_field(blue, &info->var.blue); 307 308 pal[regno] = v; 309 } else { 310 if (regno >= 256) 311 return -EINVAL; 312 313 lx_set_palette_reg(info, regno, red, green, blue); 314 } 315 316 return 0; 317 } 318 319 static int lxfb_blank(int blank_mode, struct fb_info *info) 320 { 321 return lx_blank_display(info, blank_mode); 322 } 323 324 325 static int lxfb_map_video_memory(struct fb_info *info, struct pci_dev *dev) 326 { 327 struct lxfb_par *par = info->par; 328 int ret; 329 330 ret = pci_enable_device(dev); 331 332 if (ret) 333 return ret; 334 335 ret = pci_request_region(dev, 0, "lxfb-framebuffer"); 336 337 if (ret) 338 return ret; 339 340 ret = pci_request_region(dev, 1, "lxfb-gp"); 341 342 if (ret) 343 return ret; 344 345 ret = pci_request_region(dev, 2, "lxfb-vg"); 346 347 if (ret) 348 return ret; 349 350 ret = pci_request_region(dev, 3, "lxfb-vp"); 351 352 if (ret) 353 return ret; 354 355 info->fix.smem_start = pci_resource_start(dev, 0); 356 info->fix.smem_len = vram ? vram : lx_framebuffer_size(); 357 358 info->screen_base = ioremap(info->fix.smem_start, info->fix.smem_len); 359 360 ret = -ENOMEM; 361 362 if (info->screen_base == NULL) 363 return ret; 364 365 par->gp_regs = pci_ioremap_bar(dev, 1); 366 367 if (par->gp_regs == NULL) 368 return ret; 369 370 par->dc_regs = pci_ioremap_bar(dev, 2); 371 372 if (par->dc_regs == NULL) 373 return ret; 374 375 par->vp_regs = pci_ioremap_bar(dev, 3); 376 377 if (par->vp_regs == NULL) 378 return ret; 379 380 write_dc(par, DC_UNLOCK, DC_UNLOCK_UNLOCK); 381 write_dc(par, DC_GLIU0_MEM_OFFSET, info->fix.smem_start & 0xFF000000); 382 write_dc(par, DC_UNLOCK, DC_UNLOCK_LOCK); 383 384 dev_info(&dev->dev, "%d KB of video memory at 0x%lx\n", 385 info->fix.smem_len / 1024, info->fix.smem_start); 386 387 return 0; 388 } 389 390 static const struct fb_ops lxfb_ops = { 391 .owner = THIS_MODULE, 392 .fb_check_var = lxfb_check_var, 393 .fb_set_par = lxfb_set_par, 394 .fb_setcolreg = lxfb_setcolreg, 395 .fb_blank = lxfb_blank, 396 /* No HW acceleration for now. */ 397 .fb_fillrect = cfb_fillrect, 398 .fb_copyarea = cfb_copyarea, 399 .fb_imageblit = cfb_imageblit, 400 }; 401 402 static struct fb_info *lxfb_init_fbinfo(struct device *dev) 403 { 404 struct lxfb_par *par; 405 struct fb_info *info; 406 407 /* Alloc enough space for the pseudo palette. */ 408 info = framebuffer_alloc(sizeof(struct lxfb_par) + sizeof(u32) * 16, 409 dev); 410 if (!info) 411 return NULL; 412 413 par = info->par; 414 415 strcpy(info->fix.id, "Geode LX"); 416 417 info->fix.type = FB_TYPE_PACKED_PIXELS; 418 info->fix.type_aux = 0; 419 info->fix.xpanstep = 0; 420 info->fix.ypanstep = 0; 421 info->fix.ywrapstep = 0; 422 info->fix.accel = FB_ACCEL_NONE; 423 424 info->var.nonstd = 0; 425 info->var.activate = FB_ACTIVATE_NOW; 426 info->var.height = -1; 427 info->var.width = -1; 428 info->var.accel_flags = 0; 429 info->var.vmode = FB_VMODE_NONINTERLACED; 430 431 info->fbops = &lxfb_ops; 432 info->flags = FBINFO_DEFAULT; 433 info->node = -1; 434 435 info->pseudo_palette = (void *)par + sizeof(struct lxfb_par); 436 437 if (fb_alloc_cmap(&info->cmap, 256, 0) < 0) { 438 framebuffer_release(info); 439 return NULL; 440 } 441 442 info->var.grayscale = 0; 443 444 return info; 445 } 446 447 static int __maybe_unused lxfb_suspend(struct device *dev) 448 { 449 struct fb_info *info = dev_get_drvdata(dev); 450 451 console_lock(); 452 lx_powerdown(info); 453 fb_set_suspend(info, 1); 454 console_unlock(); 455 456 /* there's no point in setting PCI states; we emulate PCI, so 457 * we don't end up getting power savings anyways */ 458 459 return 0; 460 } 461 462 static int __maybe_unused lxfb_resume(struct device *dev) 463 { 464 struct fb_info *info = dev_get_drvdata(dev); 465 int ret; 466 467 console_lock(); 468 ret = lx_powerup(info); 469 if (ret) { 470 printk(KERN_ERR "lxfb: power up failed!\n"); 471 return ret; 472 } 473 474 fb_set_suspend(info, 0); 475 console_unlock(); 476 return 0; 477 } 478 479 static int lxfb_probe(struct pci_dev *pdev, const struct pci_device_id *id) 480 { 481 struct lxfb_par *par; 482 struct fb_info *info; 483 int ret; 484 485 struct fb_videomode *modedb_ptr; 486 unsigned int modedb_size; 487 488 ret = aperture_remove_conflicting_pci_devices(pdev, "lxfb"); 489 if (ret) 490 return ret; 491 492 info = lxfb_init_fbinfo(&pdev->dev); 493 494 if (info == NULL) 495 return -ENOMEM; 496 497 par = info->par; 498 499 ret = lxfb_map_video_memory(info, pdev); 500 501 if (ret < 0) { 502 dev_err(&pdev->dev, 503 "failed to map frame buffer or controller registers\n"); 504 goto err; 505 } 506 507 /* Set up the desired outputs */ 508 509 par->output = 0; 510 par->output |= (nopanel) ? 0 : OUTPUT_PANEL; 511 par->output |= (nocrt) ? 0 : OUTPUT_CRT; 512 513 /* Set up the mode database */ 514 515 get_modedb(&modedb_ptr, &modedb_size); 516 ret = fb_find_mode(&info->var, info, mode_option, 517 modedb_ptr, modedb_size, NULL, 16); 518 519 if (ret == 0 || ret == 4) { 520 dev_err(&pdev->dev, "could not find valid video mode\n"); 521 ret = -EINVAL; 522 goto err; 523 } 524 525 /* Clear the screen of garbage, unless noclear was specified, 526 * in which case we assume the user knows what he is doing */ 527 528 if (!noclear) 529 memset_io(info->screen_base, 0, info->fix.smem_len); 530 531 /* Set the mode */ 532 533 lxfb_check_var(&info->var, info); 534 lxfb_set_par(info); 535 536 pm_set_vt_switch(vt_switch); 537 538 if (register_framebuffer(info) < 0) { 539 ret = -EINVAL; 540 goto err; 541 } 542 pci_set_drvdata(pdev, info); 543 fb_info(info, "%s frame buffer device\n", info->fix.id); 544 545 return 0; 546 547 err: 548 if (info->screen_base) { 549 iounmap(info->screen_base); 550 pci_release_region(pdev, 0); 551 } 552 if (par->gp_regs) { 553 iounmap(par->gp_regs); 554 pci_release_region(pdev, 1); 555 } 556 if (par->dc_regs) { 557 iounmap(par->dc_regs); 558 pci_release_region(pdev, 2); 559 } 560 if (par->vp_regs) { 561 iounmap(par->vp_regs); 562 pci_release_region(pdev, 3); 563 } 564 565 fb_dealloc_cmap(&info->cmap); 566 framebuffer_release(info); 567 568 return ret; 569 } 570 571 static void lxfb_remove(struct pci_dev *pdev) 572 { 573 struct fb_info *info = pci_get_drvdata(pdev); 574 struct lxfb_par *par = info->par; 575 576 unregister_framebuffer(info); 577 578 iounmap(info->screen_base); 579 pci_release_region(pdev, 0); 580 581 iounmap(par->gp_regs); 582 pci_release_region(pdev, 1); 583 584 iounmap(par->dc_regs); 585 pci_release_region(pdev, 2); 586 587 iounmap(par->vp_regs); 588 pci_release_region(pdev, 3); 589 590 fb_dealloc_cmap(&info->cmap); 591 framebuffer_release(info); 592 } 593 594 static struct pci_device_id lxfb_id_table[] = { 595 { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_LX_VIDEO) }, 596 { 0, } 597 }; 598 599 MODULE_DEVICE_TABLE(pci, lxfb_id_table); 600 601 static const struct dev_pm_ops lxfb_pm_ops = { 602 #ifdef CONFIG_PM_SLEEP 603 .suspend = lxfb_suspend, 604 .resume = lxfb_resume, 605 .freeze = NULL, 606 .thaw = lxfb_resume, 607 .poweroff = NULL, 608 .restore = lxfb_resume, 609 #endif 610 }; 611 612 static struct pci_driver lxfb_driver = { 613 .name = "lxfb", 614 .id_table = lxfb_id_table, 615 .probe = lxfb_probe, 616 .remove = lxfb_remove, 617 .driver.pm = &lxfb_pm_ops, 618 }; 619 620 #ifndef MODULE 621 static int __init lxfb_setup(char *options) 622 { 623 char *opt; 624 625 if (!options || !*options) 626 return 0; 627 628 while ((opt = strsep(&options, ",")) != NULL) { 629 if (!*opt) 630 continue; 631 632 if (!strcmp(opt, "noclear")) 633 noclear = 1; 634 else if (!strcmp(opt, "nopanel")) 635 nopanel = 1; 636 else if (!strcmp(opt, "nocrt")) 637 nocrt = 1; 638 else 639 mode_option = opt; 640 } 641 642 return 0; 643 } 644 #endif 645 646 static int __init lxfb_init(void) 647 { 648 #ifndef MODULE 649 char *option = NULL; 650 #endif 651 652 if (fb_modesetting_disabled("lxfb")) 653 return -ENODEV; 654 655 #ifndef MODULE 656 if (fb_get_options("lxfb", &option)) 657 return -ENODEV; 658 659 lxfb_setup(option); 660 #endif 661 return pci_register_driver(&lxfb_driver); 662 } 663 static void __exit lxfb_cleanup(void) 664 { 665 pci_unregister_driver(&lxfb_driver); 666 } 667 668 module_init(lxfb_init); 669 module_exit(lxfb_cleanup); 670 671 module_param(mode_option, charp, 0); 672 MODULE_PARM_DESC(mode_option, "video mode (<x>x<y>[-<bpp>][@<refr>])"); 673 674 module_param(vram, int, 0); 675 MODULE_PARM_DESC(vram, "video memory size"); 676 677 module_param(vt_switch, int, 0); 678 MODULE_PARM_DESC(vt_switch, "enable VT switch during suspend/resume"); 679 680 MODULE_DESCRIPTION("Framebuffer driver for the AMD Geode LX"); 681 MODULE_LICENSE("GPL"); 682