1/* 2 * Geode LX framebuffer driver. 3 * 4 * Copyright (C) 2007 Advanced Micro Devices, Inc. 5 * Built from gxfb (which is Copyright (C) 2006 Arcom Control Systems Ltd.) 6 * 7 * This program is free software; you can redistribute it and/or modify it 8 * under the terms of the GNU General Public License as published by the 9 * Free Software Foundation; either version 2 of the License, or (at your 10 * option) any later version. 11 */ 12 13#include <linux/module.h> 14#include <linux/kernel.h> 15#include <linux/errno.h> 16#include <linux/string.h> 17#include <linux/console.h> 18#include <linux/mm.h> 19#include <linux/suspend.h> 20#include <linux/delay.h> 21#include <linux/fb.h> 22#include <linux/init.h> 23#include <linux/pci.h> 24#include <linux/uaccess.h> 25 26#include "lxfb.h" 27 28static char *mode_option; 29static int noclear, nopanel, nocrt; 30static int vram; 31static int vt_switch; 32 33/* Most of these modes are sorted in ascending order, but 34 * since the first entry in this table is the "default" mode, 35 * we try to make it something sane - 640x480-60 is sane 36 */ 37 38static struct fb_videomode geode_modedb[] __devinitdata = { 39 /* 640x480-60 */ 40 { NULL, 60, 640, 480, 39682, 48, 8, 25, 2, 88, 2, 41 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, 42 FB_VMODE_NONINTERLACED, 0 }, 43 /* 640x400-70 */ 44 { NULL, 70, 640, 400, 39770, 40, 8, 28, 5, 96, 2, 45 FB_SYNC_HOR_HIGH_ACT, 46 FB_VMODE_NONINTERLACED, 0 }, 47 /* 640x480-70 */ 48 { NULL, 70, 640, 480, 35014, 88, 24, 15, 2, 64, 3, 49 0, FB_VMODE_NONINTERLACED, 0 }, 50 /* 640x480-72 */ 51 { NULL, 72, 640, 480, 32102, 120, 16, 20, 1, 40, 3, 52 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, 53 FB_VMODE_NONINTERLACED, 0 }, 54 /* 640x480-75 */ 55 { NULL, 75, 640, 480, 31746, 120, 16, 16, 1, 64, 3, 56 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, 57 FB_VMODE_NONINTERLACED, 0 }, 58 /* 640x480-85 */ 59 { NULL, 85, 640, 480, 27780, 80, 56, 25, 1, 56, 3, 60 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, 61 FB_VMODE_NONINTERLACED, 0 }, 62 /* 640x480-90 */ 63 { NULL, 90, 640, 480, 26392, 96, 32, 22, 1, 64, 3, 64 0, FB_VMODE_NONINTERLACED, 0 }, 65 /* 640x480-100 */ 66 { NULL, 100, 640, 480, 23167, 104, 40, 25, 1, 64, 3, 67 0, FB_VMODE_NONINTERLACED, 0 }, 68 /* 640x480-60 */ 69 { NULL, 60, 640, 480, 39682, 48, 16, 25, 10, 88, 2, 70 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, 71 FB_VMODE_NONINTERLACED, 0 }, 72 /* 800x600-56 */ 73 { NULL, 56, 800, 600, 27901, 128, 24, 22, 1, 72, 2, 74 0, FB_VMODE_NONINTERLACED, 0 }, 75 /* 800x600-60 */ 76 { NULL, 60, 800, 600, 25131, 72, 32, 23, 1, 136, 4, 77 0, FB_VMODE_NONINTERLACED, 0 }, 78 /* 800x600-70 */ 79 { NULL, 70, 800, 600, 21873, 120, 40, 21, 4, 80, 3, 80 0, FB_VMODE_NONINTERLACED, 0 }, 81 /* 800x600-72 */ 82 { NULL, 72, 800, 600, 20052, 64, 56, 23, 37, 120, 6, 83 0, FB_VMODE_NONINTERLACED, 0 }, 84 /* 800x600-75 */ 85 { NULL, 75, 800, 600, 20202, 160, 16, 21, 1, 80, 3, 86 0, FB_VMODE_NONINTERLACED, 0 }, 87 /* 800x600-85 */ 88 { NULL, 85, 800, 600, 17790, 152, 32, 27, 1, 64, 3, 89 0, FB_VMODE_NONINTERLACED, 0 }, 90 /* 800x600-90 */ 91 { NULL, 90, 800, 600, 16648, 128, 40, 28, 1, 88, 3, 92 0, FB_VMODE_NONINTERLACED, 0 }, 93 /* 800x600-100 */ 94 { NULL, 100, 800, 600, 14667, 136, 48, 27, 1, 88, 3, 95 0, FB_VMODE_NONINTERLACED, 0 }, 96 /* 800x600-60 */ 97 { NULL, 60, 800, 600, 25131, 88, 40, 23, 1, 128, 4, 98 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, 99 FB_VMODE_NONINTERLACED, 0 }, 100 /* 1024x768-60 */ 101 { NULL, 60, 1024, 768, 15385, 160, 24, 29, 3, 136, 6, 102 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, 103 FB_VMODE_NONINTERLACED, 0 }, 104 /* 1024x768-70 */ 105 { NULL, 70, 1024, 768, 13346, 144, 24, 29, 3, 136, 6, 106 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, 107 FB_VMODE_NONINTERLACED, 0 }, 108 /* 1024x768-72 */ 109 { NULL, 72, 1024, 768, 12702, 168, 56, 29, 4, 112, 3, 110 0, FB_VMODE_NONINTERLACED, 0 }, 111 /* 1024x768-75 */ 112 { NULL, 75, 1024, 768, 12703, 176, 16, 28, 1, 96, 3, 113 0, FB_VMODE_NONINTERLACED, 0 }, 114 /* 1024x768-85 */ 115 { NULL, 85, 1024, 768, 10581, 208, 48, 36, 1, 96, 3, 116 0, FB_VMODE_NONINTERLACED, 0 }, 117 /* 1024x768-90 */ 118 { NULL, 90, 1024, 768, 9981, 176, 64, 37, 1, 112, 3, 119 0, FB_VMODE_NONINTERLACED, 0 }, 120 /* 1024x768-100 */ 121 { NULL, 100, 1024, 768, 8825, 184, 72, 42, 1, 112, 3, 122 0, FB_VMODE_NONINTERLACED, 0 }, 123 /* 1024x768-60 */ 124 { NULL, 60, 1024, 768, 15385, 160, 24, 29, 3, 136, 6, 125 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, 126 FB_VMODE_NONINTERLACED, 0 }, 127 /* 1152x864-60 */ 128 { NULL, 60, 1152, 864, 12251, 184, 64, 27, 1, 120, 3, 129 0, FB_VMODE_NONINTERLACED, 0 }, 130 /* 1152x864-70 */ 131 { NULL, 70, 1152, 864, 10254, 192, 72, 32, 8, 120, 3, 132 0, FB_VMODE_NONINTERLACED, 0 }, 133 /* 1152x864-72 */ 134 { NULL, 72, 1152, 864, 9866, 200, 72, 33, 7, 128, 3, 135 0, FB_VMODE_NONINTERLACED, 0 }, 136 /* 1152x864-75 */ 137 { NULL, 75, 1152, 864, 9259, 256, 64, 32, 1, 128, 3, 138 0, FB_VMODE_NONINTERLACED, 0 }, 139 /* 1152x864-85 */ 140 { NULL, 85, 1152, 864, 8357, 200, 72, 37, 3, 128, 3, 141 0, FB_VMODE_NONINTERLACED, 0 }, 142 /* 1152x864-90 */ 143 { NULL, 90, 1152, 864, 7719, 208, 80, 42, 9, 128, 3, 144 0, FB_VMODE_NONINTERLACED, 0 }, 145 /* 1152x864-100 */ 146 { NULL, 100, 1152, 864, 6947, 208, 80, 48, 3, 128, 3, 147 0, FB_VMODE_NONINTERLACED, 0 }, 148 /* 1152x864-60 */ 149 { NULL, 60, 1152, 864, 12251, 184, 64, 27, 1, 120, 3, 150 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, 151 FB_VMODE_NONINTERLACED, 0 }, 152 /* 1280x1024-60 */ 153 { NULL, 60, 1280, 1024, 9262, 248, 48, 38, 1, 112, 3, 154 0, FB_VMODE_NONINTERLACED, 0 }, 155 /* 1280x1024-70 */ 156 { NULL, 70, 1280, 1024, 7719, 224, 88, 38, 6, 136, 3, 157 0, FB_VMODE_NONINTERLACED, 0 }, 158 /* 1280x1024-72 */ 159 { NULL, 72, 1280, 1024, 7490, 224, 88, 39, 7, 136, 3, 160 0, FB_VMODE_NONINTERLACED, 0 }, 161 /* 1280x1024-75 */ 162 { NULL, 75, 1280, 1024, 7409, 248, 16, 38, 1, 144, 3, 163 0, FB_VMODE_NONINTERLACED, 0 }, 164 /* 1280x1024-85 */ 165 { NULL, 85, 1280, 1024, 6351, 224, 64, 44, 1, 160, 3, 166 0, FB_VMODE_NONINTERLACED, 0 }, 167 /* 1280x1024-90 */ 168 { NULL, 90, 1280, 1024, 5791, 240, 96, 51, 12, 144, 3, 169 0, FB_VMODE_NONINTERLACED, 0 }, 170 /* 1280x1024-100 */ 171 { NULL, 100, 1280, 1024, 5212, 240, 96, 57, 6, 144, 3, 172 0, FB_VMODE_NONINTERLACED, 0 }, 173 /* 1280x1024-60 */ 174 { NULL, 60, 1280, 1024, 9262, 248, 48, 38, 1, 112, 3, 175 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, 176 FB_VMODE_NONINTERLACED, 0 }, 177 /* 1600x1200-60 */ 178 { NULL, 60, 1600, 1200, 6172, 304, 64, 46, 1, 192, 3, 179 0, FB_VMODE_NONINTERLACED, 0 }, 180 /* 1600x1200-70 */ 181 { NULL, 70, 1600, 1200, 5291, 304, 64, 46, 1, 192, 3, 182 0, FB_VMODE_NONINTERLACED, 0 }, 183 /* 1600x1200-72 */ 184 { NULL, 72, 1600, 1200, 5053, 288, 112, 47, 13, 176, 3, 185 0, FB_VMODE_NONINTERLACED, 0 }, 186 /* 1600x1200-75 */ 187 { NULL, 75, 1600, 1200, 4938, 304, 64, 46, 1, 192, 3, 188 0, FB_VMODE_NONINTERLACED, 0 }, 189 /* 1600x1200-85 */ 190 { NULL, 85, 1600, 1200, 4357, 304, 64, 46, 1, 192, 3, 191 0, FB_VMODE_NONINTERLACED, 0 }, 192 /* 1600x1200-90 */ 193 { NULL, 90, 1600, 1200, 3981, 304, 128, 60, 1, 176, 3, 194 0, FB_VMODE_NONINTERLACED, 0 }, 195 /* 1600x1200-100 */ 196 { NULL, 100, 1600, 1200, 3563, 304, 128, 67, 1, 176, 3, 197 0, FB_VMODE_NONINTERLACED, 0 }, 198 /* 1600x1200-60 */ 199 { NULL, 60, 1600, 1200, 6172, 304, 64, 46, 1, 192, 3, 200 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, 201 FB_VMODE_NONINTERLACED, 0 }, 202 /* 1920x1440-60 */ 203 { NULL, 60, 1920, 1440, 4273, 344, 128, 56, 1, 208, 3, 204 0, FB_VMODE_NONINTERLACED, 0 }, 205 /* 1920x1440-70 */ 206 { NULL, 70, 1920, 1440, 3593, 360, 152, 55, 8, 208, 3, 207 0, FB_VMODE_NONINTERLACED, 0 }, 208 /* 1920x1440-72 */ 209 { NULL, 72, 1920, 1440, 3472, 360, 152, 68, 4, 208, 3, 210 0, FB_VMODE_NONINTERLACED, 0 }, 211 /* 1920x1440-75 */ 212 { NULL, 75, 1920, 1440, 3367, 352, 144, 56, 1, 224, 3, 213 0, FB_VMODE_NONINTERLACED, 0 }, 214 /* 1920x1440-85 */ 215 { NULL, 85, 1920, 1440, 2929, 368, 152, 68, 1, 216, 3, 216 0, FB_VMODE_NONINTERLACED, 0 }, 217}; 218 219#ifdef CONFIG_OLPC 220#include <asm/olpc.h> 221 222static struct fb_videomode olpc_dcon_modedb[] __devinitdata = { 223 /* The only mode the DCON has is 1200x900 */ 224 { NULL, 50, 1200, 900, 17460, 24, 8, 4, 5, 8, 3, 225 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, 226 FB_VMODE_NONINTERLACED, 0 } 227}; 228 229static void __devinit get_modedb(struct fb_videomode **modedb, 230 unsigned int *size) 231{ 232 if (olpc_has_dcon()) { 233 *modedb = (struct fb_videomode *) olpc_dcon_modedb; 234 *size = ARRAY_SIZE(olpc_dcon_modedb); 235 } else { 236 *modedb = (struct fb_videomode *) geode_modedb; 237 *size = ARRAY_SIZE(geode_modedb); 238 } 239} 240 241#else 242static void __devinit get_modedb(struct fb_videomode **modedb, 243 unsigned int *size) 244{ 245 *modedb = (struct fb_videomode *) geode_modedb; 246 *size = ARRAY_SIZE(geode_modedb); 247} 248#endif 249 250static int lxfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) 251{ 252 if (var->xres > 1920 || var->yres > 1440) 253 return -EINVAL; 254 255 if (var->bits_per_pixel == 32) { 256 var->red.offset = 16; var->red.length = 8; 257 var->green.offset = 8; var->green.length = 8; 258 var->blue.offset = 0; var->blue.length = 8; 259 } else if (var->bits_per_pixel == 16) { 260 var->red.offset = 11; var->red.length = 5; 261 var->green.offset = 5; var->green.length = 6; 262 var->blue.offset = 0; var->blue.length = 5; 263 } else if (var->bits_per_pixel == 8) { 264 var->red.offset = 0; var->red.length = 8; 265 var->green.offset = 0; var->green.length = 8; 266 var->blue.offset = 0; var->blue.length = 8; 267 } else 268 return -EINVAL; 269 270 var->transp.offset = 0; var->transp.length = 0; 271 272 /* Enough video memory? */ 273 if ((lx_get_pitch(var->xres, var->bits_per_pixel) * var->yres) 274 > info->fix.smem_len) 275 return -EINVAL; 276 277 return 0; 278} 279 280static int lxfb_set_par(struct fb_info *info) 281{ 282 if (info->var.bits_per_pixel > 8) 283 info->fix.visual = FB_VISUAL_TRUECOLOR; 284 else 285 info->fix.visual = FB_VISUAL_PSEUDOCOLOR; 286 287 info->fix.line_length = lx_get_pitch(info->var.xres, 288 info->var.bits_per_pixel); 289 290 lx_set_mode(info); 291 return 0; 292} 293 294static inline u_int chan_to_field(u_int chan, struct fb_bitfield *bf) 295{ 296 chan &= 0xffff; 297 chan >>= 16 - bf->length; 298 return chan << bf->offset; 299} 300 301static int lxfb_setcolreg(unsigned regno, unsigned red, unsigned green, 302 unsigned blue, unsigned transp, 303 struct fb_info *info) 304{ 305 if (info->var.grayscale) { 306 /* grayscale = 0.30*R + 0.59*G + 0.11*B */ 307 red = green = blue = (red * 77 + green * 151 + blue * 28) >> 8; 308 } 309 310 /* Truecolor has hardware independent palette */ 311 if (info->fix.visual == FB_VISUAL_TRUECOLOR) { 312 u32 *pal = info->pseudo_palette; 313 u32 v; 314 315 if (regno >= 16) 316 return -EINVAL; 317 318 v = chan_to_field(red, &info->var.red); 319 v |= chan_to_field(green, &info->var.green); 320 v |= chan_to_field(blue, &info->var.blue); 321 322 pal[regno] = v; 323 } else { 324 if (regno >= 256) 325 return -EINVAL; 326 327 lx_set_palette_reg(info, regno, red, green, blue); 328 } 329 330 return 0; 331} 332 333static int lxfb_blank(int blank_mode, struct fb_info *info) 334{ 335 return lx_blank_display(info, blank_mode); 336} 337 338 339static int __devinit lxfb_map_video_memory(struct fb_info *info, 340 struct pci_dev *dev) 341{ 342 struct lxfb_par *par = info->par; 343 int ret; 344 345 ret = pci_enable_device(dev); 346 347 if (ret) 348 return ret; 349 350 ret = pci_request_region(dev, 0, "lxfb-framebuffer"); 351 352 if (ret) 353 return ret; 354 355 ret = pci_request_region(dev, 1, "lxfb-gp"); 356 357 if (ret) 358 return ret; 359 360 ret = pci_request_region(dev, 2, "lxfb-vg"); 361 362 if (ret) 363 return ret; 364 365 ret = pci_request_region(dev, 3, "lxfb-vp"); 366 367 if (ret) 368 return ret; 369 370 info->fix.smem_start = pci_resource_start(dev, 0); 371 info->fix.smem_len = vram ? vram : lx_framebuffer_size(); 372 373 info->screen_base = ioremap(info->fix.smem_start, info->fix.smem_len); 374 375 ret = -ENOMEM; 376 377 if (info->screen_base == NULL) 378 return ret; 379 380 par->gp_regs = pci_ioremap_bar(dev, 1); 381 382 if (par->gp_regs == NULL) 383 return ret; 384 385 par->dc_regs = pci_ioremap_bar(dev, 2); 386 387 if (par->dc_regs == NULL) 388 return ret; 389 390 par->vp_regs = pci_ioremap_bar(dev, 3); 391 392 if (par->vp_regs == NULL) 393 return ret; 394 395 write_dc(par, DC_UNLOCK, DC_UNLOCK_UNLOCK); 396 write_dc(par, DC_GLIU0_MEM_OFFSET, info->fix.smem_start & 0xFF000000); 397 write_dc(par, DC_UNLOCK, DC_UNLOCK_LOCK); 398 399 dev_info(&dev->dev, "%d KB of video memory at 0x%lx\n", 400 info->fix.smem_len / 1024, info->fix.smem_start); 401 402 return 0; 403} 404 405static struct fb_ops lxfb_ops = { 406 .owner = THIS_MODULE, 407 .fb_check_var = lxfb_check_var, 408 .fb_set_par = lxfb_set_par, 409 .fb_setcolreg = lxfb_setcolreg, 410 .fb_blank = lxfb_blank, 411 /* No HW acceleration for now. */ 412 .fb_fillrect = cfb_fillrect, 413 .fb_copyarea = cfb_copyarea, 414 .fb_imageblit = cfb_imageblit, 415}; 416 417static struct fb_info * __devinit lxfb_init_fbinfo(struct device *dev) 418{ 419 struct lxfb_par *par; 420 struct fb_info *info; 421 422 /* Alloc enough space for the pseudo palette. */ 423 info = framebuffer_alloc(sizeof(struct lxfb_par) + sizeof(u32) * 16, 424 dev); 425 if (!info) 426 return NULL; 427 428 par = info->par; 429 430 strcpy(info->fix.id, "Geode LX"); 431 432 info->fix.type = FB_TYPE_PACKED_PIXELS; 433 info->fix.type_aux = 0; 434 info->fix.xpanstep = 0; 435 info->fix.ypanstep = 0; 436 info->fix.ywrapstep = 0; 437 info->fix.accel = FB_ACCEL_NONE; 438 439 info->var.nonstd = 0; 440 info->var.activate = FB_ACTIVATE_NOW; 441 info->var.height = -1; 442 info->var.width = -1; 443 info->var.accel_flags = 0; 444 info->var.vmode = FB_VMODE_NONINTERLACED; 445 446 info->fbops = &lxfb_ops; 447 info->flags = FBINFO_DEFAULT; 448 info->node = -1; 449 450 info->pseudo_palette = (void *)par + sizeof(struct lxfb_par); 451 452 if (fb_alloc_cmap(&info->cmap, 256, 0) < 0) { 453 framebuffer_release(info); 454 return NULL; 455 } 456 457 info->var.grayscale = 0; 458 459 return info; 460} 461 462#ifdef CONFIG_PM 463static int lxfb_suspend(struct pci_dev *pdev, pm_message_t state) 464{ 465 struct fb_info *info = pci_get_drvdata(pdev); 466 467 if (state.event == PM_EVENT_SUSPEND) { 468 acquire_console_sem(); 469 lx_powerdown(info); 470 fb_set_suspend(info, 1); 471 release_console_sem(); 472 } 473 474 /* there's no point in setting PCI states; we emulate PCI, so 475 * we don't end up getting power savings anyways */ 476 477 return 0; 478} 479 480static int lxfb_resume(struct pci_dev *pdev) 481{ 482 struct fb_info *info = pci_get_drvdata(pdev); 483 int ret; 484 485 acquire_console_sem(); 486 ret = lx_powerup(info); 487 if (ret) { 488 printk(KERN_ERR "lxfb: power up failed!\n"); 489 return ret; 490 } 491 492 fb_set_suspend(info, 0); 493 release_console_sem(); 494 return 0; 495} 496#else 497#define lxfb_suspend NULL 498#define lxfb_resume NULL 499#endif 500 501static int __devinit lxfb_probe(struct pci_dev *pdev, 502 const struct pci_device_id *id) 503{ 504 struct lxfb_par *par; 505 struct fb_info *info; 506 int ret; 507 508 struct fb_videomode *modedb_ptr; 509 unsigned int modedb_size; 510 511 info = lxfb_init_fbinfo(&pdev->dev); 512 513 if (info == NULL) 514 return -ENOMEM; 515 516 par = info->par; 517 518 ret = lxfb_map_video_memory(info, pdev); 519 520 if (ret < 0) { 521 dev_err(&pdev->dev, 522 "failed to map frame buffer or controller registers\n"); 523 goto err; 524 } 525 526 /* Set up the desired outputs */ 527 528 par->output = 0; 529 par->output |= (nopanel) ? 0 : OUTPUT_PANEL; 530 par->output |= (nocrt) ? 0 : OUTPUT_CRT; 531 532 /* Set up the mode database */ 533 534 get_modedb(&modedb_ptr, &modedb_size); 535 ret = fb_find_mode(&info->var, info, mode_option, 536 modedb_ptr, modedb_size, NULL, 16); 537 538 if (ret == 0 || ret == 4) { 539 dev_err(&pdev->dev, "could not find valid video mode\n"); 540 ret = -EINVAL; 541 goto err; 542 } 543 544 /* Clear the screen of garbage, unless noclear was specified, 545 * in which case we assume the user knows what he is doing */ 546 547 if (!noclear) 548 memset_io(info->screen_base, 0, info->fix.smem_len); 549 550 /* Set the mode */ 551 552 lxfb_check_var(&info->var, info); 553 lxfb_set_par(info); 554 555 pm_set_vt_switch(vt_switch); 556 557 if (register_framebuffer(info) < 0) { 558 ret = -EINVAL; 559 goto err; 560 } 561 pci_set_drvdata(pdev, info); 562 printk(KERN_INFO "fb%d: %s frame buffer device\n", 563 info->node, info->fix.id); 564 565 return 0; 566 567err: 568 if (info->screen_base) { 569 iounmap(info->screen_base); 570 pci_release_region(pdev, 0); 571 } 572 if (par->gp_regs) { 573 iounmap(par->gp_regs); 574 pci_release_region(pdev, 1); 575 } 576 if (par->dc_regs) { 577 iounmap(par->dc_regs); 578 pci_release_region(pdev, 2); 579 } 580 if (par->vp_regs) { 581 iounmap(par->vp_regs); 582 pci_release_region(pdev, 3); 583 } 584 585 if (info) { 586 fb_dealloc_cmap(&info->cmap); 587 framebuffer_release(info); 588 } 589 590 return ret; 591} 592 593static void __devexit lxfb_remove(struct pci_dev *pdev) 594{ 595 struct fb_info *info = pci_get_drvdata(pdev); 596 struct lxfb_par *par = info->par; 597 598 unregister_framebuffer(info); 599 600 iounmap(info->screen_base); 601 pci_release_region(pdev, 0); 602 603 iounmap(par->gp_regs); 604 pci_release_region(pdev, 1); 605 606 iounmap(par->dc_regs); 607 pci_release_region(pdev, 2); 608 609 iounmap(par->vp_regs); 610 pci_release_region(pdev, 3); 611 612 fb_dealloc_cmap(&info->cmap); 613 pci_set_drvdata(pdev, NULL); 614 framebuffer_release(info); 615} 616 617static struct pci_device_id lxfb_id_table[] = { 618 { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_LX_VIDEO) }, 619 { 0, } 620}; 621 622MODULE_DEVICE_TABLE(pci, lxfb_id_table); 623 624static struct pci_driver lxfb_driver = { 625 .name = "lxfb", 626 .id_table = lxfb_id_table, 627 .probe = lxfb_probe, 628 .remove = lxfb_remove, 629 .suspend = lxfb_suspend, 630 .resume = lxfb_resume, 631}; 632 633#ifndef MODULE 634static int __init lxfb_setup(char *options) 635{ 636 char *opt; 637 638 if (!options || !*options) 639 return 0; 640 641 while ((opt = strsep(&options, ",")) != NULL) { 642 if (!*opt) 643 continue; 644 645 if (!strcmp(opt, "noclear")) 646 noclear = 1; 647 else if (!strcmp(opt, "nopanel")) 648 nopanel = 1; 649 else if (!strcmp(opt, "nocrt")) 650 nocrt = 1; 651 else 652 mode_option = opt; 653 } 654 655 return 0; 656} 657#endif 658 659static int __init lxfb_init(void) 660{ 661#ifndef MODULE 662 char *option = NULL; 663 664 if (fb_get_options("lxfb", &option)) 665 return -ENODEV; 666 667 lxfb_setup(option); 668#endif 669 return pci_register_driver(&lxfb_driver); 670} 671static void __exit lxfb_cleanup(void) 672{ 673 pci_unregister_driver(&lxfb_driver); 674} 675 676module_init(lxfb_init); 677module_exit(lxfb_cleanup); 678 679module_param(mode_option, charp, 0); 680MODULE_PARM_DESC(mode_option, "video mode (<x>x<y>[-<bpp>][@<refr>])"); 681 682module_param(vram, int, 0); 683MODULE_PARM_DESC(vram, "video memory size"); 684 685module_param(vt_switch, int, 0); 686MODULE_PARM_DESC(vt_switch, "enable VT switch during suspend/resume"); 687 688MODULE_DESCRIPTION("Framebuffer driver for the AMD Geode LX"); 689MODULE_LICENSE("GPL"); 690