700 lines · c
1/*2 * platinumfb.c -- frame buffer device for the PowerMac 'platinum' display3 *4 * Copyright (C) 1998 Franz Sirl5 *6 * Frame buffer structure from:7 * drivers/video/controlfb.c -- frame buffer device for8 * Apple 'control' display chip.9 * Copyright (C) 1998 Dan Jacobowitz10 *11 * Hardware information from:12 * platinum.c: Console support for PowerMac "platinum" display adaptor.13 * Copyright (C) 1996 Paul Mackerras and Mark Abene14 *15 * This file is subject to the terms and conditions of the GNU General Public16 * License. See the file COPYING in the main directory of this archive for17 * more details.18 */19 20#undef DEBUG21 22#include <linux/module.h>23#include <linux/kernel.h>24#include <linux/errno.h>25#include <linux/string.h>26#include <linux/mm.h>27#include <linux/vmalloc.h>28#include <linux/delay.h>29#include <linux/interrupt.h>30#include <linux/fb.h>31#include <linux/init.h>32#include <linux/nvram.h>33#include <linux/of.h>34#include <linux/of_address.h>35#include <linux/platform_device.h>36 37#include "macmodes.h"38#include "platinumfb.h"39 40static int default_vmode = VMODE_NVRAM;41static int default_cmode = CMODE_NVRAM;42 43struct fb_info_platinum {44 struct fb_info *info;45 46 int vmode, cmode;47 int xres, yres;48 int vxres, vyres;49 int xoffset, yoffset;50 51 struct {52 __u8 red, green, blue;53 } palette[256];54 u32 pseudo_palette[16];55 56 volatile struct cmap_regs __iomem *cmap_regs;57 unsigned long cmap_regs_phys;58 59 volatile struct platinum_regs __iomem *platinum_regs;60 unsigned long platinum_regs_phys;61 62 __u8 __iomem *frame_buffer;63 volatile __u8 __iomem *base_frame_buffer;64 unsigned long frame_buffer_phys;65 66 unsigned long total_vram;67 int clktype;68 int dactype;69 70 struct resource rsrc_fb, rsrc_reg;71};72 73/*74 * Frame buffer device API75 */76 77static int platinumfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,78 u_int transp, struct fb_info *info);79static int platinumfb_blank(int blank_mode, struct fb_info *info);80static int platinumfb_set_par (struct fb_info *info);81static int platinumfb_check_var (struct fb_var_screeninfo *var, struct fb_info *info);82 83/*84 * internal functions85 */86 87static inline int platinum_vram_reqd(int video_mode, int color_mode);88static int read_platinum_sense(struct fb_info_platinum *pinfo);89static void set_platinum_clock(struct fb_info_platinum *pinfo);90static void platinum_set_hardware(struct fb_info_platinum *pinfo);91static int platinum_var_to_par(struct fb_var_screeninfo *var,92 struct fb_info_platinum *pinfo,93 int check_only);94 95/*96 * Interface used by the world97 */98 99static const struct fb_ops platinumfb_ops = {100 .owner = THIS_MODULE,101 FB_DEFAULT_IOMEM_OPS,102 .fb_check_var = platinumfb_check_var,103 .fb_set_par = platinumfb_set_par,104 .fb_setcolreg = platinumfb_setcolreg,105 .fb_blank = platinumfb_blank,106};107 108/*109 * Checks a var structure110 */111static int platinumfb_check_var (struct fb_var_screeninfo *var, struct fb_info *info)112{113 return platinum_var_to_par(var, info->par, 1);114}115 116/*117 * Applies current var to display118 */119static int platinumfb_set_par (struct fb_info *info)120{121 struct fb_info_platinum *pinfo = info->par;122 struct platinum_regvals *init;123 int err, offset = 0x20;124 125 if((err = platinum_var_to_par(&info->var, pinfo, 0))) {126 printk (KERN_ERR "platinumfb_set_par: error calling"127 " platinum_var_to_par: %d.\n", err);128 return err;129 }130 131 platinum_set_hardware(pinfo);132 133 init = platinum_reg_init[pinfo->vmode-1];134 135 if ((pinfo->vmode == VMODE_832_624_75) && (pinfo->cmode > CMODE_8))136 offset = 0x10;137 138 info->screen_base = pinfo->frame_buffer + init->fb_offset + offset;139 mutex_lock(&info->mm_lock);140 info->fix.smem_start = (pinfo->frame_buffer_phys) + init->fb_offset + offset;141 mutex_unlock(&info->mm_lock);142 info->fix.visual = (pinfo->cmode == CMODE_8) ?143 FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_DIRECTCOLOR;144 info->fix.line_length = vmode_attrs[pinfo->vmode-1].hres * (1<<pinfo->cmode)145 + offset;146 printk("line_length: %x\n", info->fix.line_length);147 return 0;148}149 150static int platinumfb_blank(int blank, struct fb_info *fb)151{152/*153 * Blank the screen if blank_mode != 0, else unblank. If blank == NULL154 * then the caller blanks by setting the CLUT (Color Look Up Table) to all155 * black. Return 0 if blanking succeeded, != 0 if un-/blanking failed due156 * to e.g. a video mode which doesn't support it. Implements VESA suspend157 * and powerdown modes on hardware that supports disabling hsync/vsync:158 * blank_mode == 2: suspend vsync159 * blank_mode == 3: suspend hsync160 * blank_mode == 4: powerdown161 */162/* [danj] I think there's something fishy about those constants... */163/*164 struct fb_info_platinum *info = (struct fb_info_platinum *) fb;165 int ctrl;166 167 ctrl = le32_to_cpup(&info->platinum_regs->ctrl.r) | 0x33;168 if (blank)169 --blank_mode;170 if (blank & VESA_VSYNC_SUSPEND)171 ctrl &= ~3;172 if (blank & VESA_HSYNC_SUSPEND)173 ctrl &= ~0x30;174 out_le32(&info->platinum_regs->ctrl.r, ctrl);175*/176/* TODO: Figure out how the heck to powerdown this thing! */177 return 0;178}179 180static int platinumfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,181 u_int transp, struct fb_info *info)182{183 struct fb_info_platinum *pinfo = info->par;184 volatile struct cmap_regs __iomem *cmap_regs = pinfo->cmap_regs;185 186 if (regno > 255)187 return 1;188 189 red >>= 8;190 green >>= 8;191 blue >>= 8;192 193 pinfo->palette[regno].red = red;194 pinfo->palette[regno].green = green;195 pinfo->palette[regno].blue = blue;196 197 out_8(&cmap_regs->addr, regno); /* tell clut what addr to fill */198 out_8(&cmap_regs->lut, red); /* send one color channel at */199 out_8(&cmap_regs->lut, green); /* a time... */200 out_8(&cmap_regs->lut, blue);201 202 if (regno < 16) {203 int i;204 u32 *pal = info->pseudo_palette;205 switch (pinfo->cmode) {206 case CMODE_16:207 pal[regno] = (regno << 10) | (regno << 5) | regno;208 break;209 case CMODE_32:210 i = (regno << 8) | regno;211 pal[regno] = (i << 16) | i;212 break;213 }214 }215 216 return 0;217}218 219static inline int platinum_vram_reqd(int video_mode, int color_mode)220{221 int baseval = vmode_attrs[video_mode-1].hres * (1<<color_mode);222 223 if ((video_mode == VMODE_832_624_75) && (color_mode > CMODE_8))224 baseval += 0x10;225 else226 baseval += 0x20;227 228 return vmode_attrs[video_mode-1].vres * baseval + 0x1000;229}230 231#define STORE_D2(a, d) { \232 out_8(&cmap_regs->addr, (a+32)); \233 out_8(&cmap_regs->d2, (d)); \234}235 236static void set_platinum_clock(struct fb_info_platinum *pinfo)237{238 volatile struct cmap_regs __iomem *cmap_regs = pinfo->cmap_regs;239 struct platinum_regvals *init;240 241 init = platinum_reg_init[pinfo->vmode-1];242 243 STORE_D2(6, 0xc6);244 out_8(&cmap_regs->addr,3+32);245 246 if (in_8(&cmap_regs->d2) == 2) {247 STORE_D2(7, init->clock_params[pinfo->clktype][0]);248 STORE_D2(8, init->clock_params[pinfo->clktype][1]);249 STORE_D2(3, 3);250 } else {251 STORE_D2(4, init->clock_params[pinfo->clktype][0]);252 STORE_D2(5, init->clock_params[pinfo->clktype][1]);253 STORE_D2(3, 2);254 }255 256 __delay(5000);257 STORE_D2(9, 0xa6);258}259 260 261/* Now how about actually saying, Make it so! */262/* Some things in here probably don't need to be done each time. */263static void platinum_set_hardware(struct fb_info_platinum *pinfo)264{265 volatile struct platinum_regs __iomem *platinum_regs = pinfo->platinum_regs;266 volatile struct cmap_regs __iomem *cmap_regs = pinfo->cmap_regs;267 struct platinum_regvals *init;268 int i;269 int vmode, cmode;270 271 vmode = pinfo->vmode;272 cmode = pinfo->cmode;273 274 init = platinum_reg_init[vmode - 1];275 276 /* Initialize display timing registers */277 out_be32(&platinum_regs->reg[24].r, 7); /* turn display off */278 279 for (i = 0; i < 26; ++i)280 out_be32(&platinum_regs->reg[i+32].r, init->regs[i]);281 282 out_be32(&platinum_regs->reg[26+32].r, (pinfo->total_vram == 0x100000 ?283 init->offset[cmode] + 4 - cmode :284 init->offset[cmode]));285 out_be32(&platinum_regs->reg[16].r, (unsigned) pinfo->frame_buffer_phys+init->fb_offset+0x10);286 out_be32(&platinum_regs->reg[18].r, init->pitch[cmode]);287 out_be32(&platinum_regs->reg[19].r, (pinfo->total_vram == 0x100000 ?288 init->mode[cmode+1] :289 init->mode[cmode]));290 out_be32(&platinum_regs->reg[20].r, (pinfo->total_vram == 0x100000 ? 0x11 : 0x1011));291 out_be32(&platinum_regs->reg[21].r, 0x100);292 out_be32(&platinum_regs->reg[22].r, 1);293 out_be32(&platinum_regs->reg[23].r, 1);294 out_be32(&platinum_regs->reg[26].r, 0xc00);295 out_be32(&platinum_regs->reg[27].r, 0x235);296 /* out_be32(&platinum_regs->reg[27].r, 0x2aa); */297 298 STORE_D2(0, (pinfo->total_vram == 0x100000 ?299 init->dacula_ctrl[cmode] & 0xf :300 init->dacula_ctrl[cmode]));301 STORE_D2(1, 4);302 STORE_D2(2, 0);303 304 set_platinum_clock(pinfo);305 306 out_be32(&platinum_regs->reg[24].r, 0); /* turn display on */307}308 309/*310 * Set misc info vars for this driver311 */312static void platinum_init_info(struct fb_info *info,313 struct fb_info_platinum *pinfo)314{315 /* Fill fb_info */316 info->fbops = &platinumfb_ops;317 info->pseudo_palette = pinfo->pseudo_palette;318 info->screen_base = pinfo->frame_buffer + 0x20;319 320 fb_alloc_cmap(&info->cmap, 256, 0);321 322 /* Fill fix common fields */323 strcpy(info->fix.id, "platinum");324 info->fix.mmio_start = pinfo->platinum_regs_phys;325 info->fix.mmio_len = 0x1000;326 info->fix.type = FB_TYPE_PACKED_PIXELS;327 info->fix.smem_start = pinfo->frame_buffer_phys + 0x20; /* will be updated later */328 info->fix.smem_len = pinfo->total_vram - 0x20;329 info->fix.ywrapstep = 0;330 info->fix.xpanstep = 0;331 info->fix.ypanstep = 0;332 info->fix.type_aux = 0;333 info->fix.accel = FB_ACCEL_NONE;334}335 336 337static int platinum_init_fb(struct fb_info *info)338{339 struct fb_info_platinum *pinfo = info->par;340 struct fb_var_screeninfo var;341 int sense, rc;342 343 sense = read_platinum_sense(pinfo);344 printk(KERN_INFO "platinumfb: Monitor sense value = 0x%x, ", sense);345 346 if (IS_REACHABLE(CONFIG_NVRAM) && default_vmode == VMODE_NVRAM)347 default_vmode = nvram_read_byte(NV_VMODE);348 if (default_vmode <= 0 || default_vmode > VMODE_MAX ||349 !platinum_reg_init[default_vmode - 1]) {350 default_vmode = mac_map_monitor_sense(sense);351 if (!platinum_reg_init[default_vmode - 1])352 default_vmode = VMODE_640_480_60;353 }354 355 if (IS_REACHABLE(CONFIG_NVRAM) && default_cmode == CMODE_NVRAM)356 default_cmode = nvram_read_byte(NV_CMODE);357 if (default_cmode < CMODE_8 || default_cmode > CMODE_32)358 default_cmode = CMODE_8;359 /*360 * Reduce the pixel size if we don't have enough VRAM.361 */362 while(default_cmode > CMODE_8 &&363 platinum_vram_reqd(default_vmode, default_cmode) > pinfo->total_vram)364 default_cmode--;365 366 printk("platinumfb: Using video mode %d and color mode %d.\n", default_vmode, default_cmode);367 368 /* Setup default var */369 if (mac_vmode_to_var(default_vmode, default_cmode, &var) < 0) {370 /* This shouldn't happen! */371 printk("mac_vmode_to_var(%d, %d,) failed\n", default_vmode, default_cmode);372try_again:373 default_vmode = VMODE_640_480_60;374 default_cmode = CMODE_8;375 if (mac_vmode_to_var(default_vmode, default_cmode, &var) < 0) {376 printk(KERN_ERR "platinumfb: mac_vmode_to_var() failed\n");377 return -ENXIO;378 }379 }380 381 /* Initialize info structure */382 platinum_init_info(info, pinfo);383 384 /* Apply default var */385 info->var = var;386 var.activate = FB_ACTIVATE_NOW;387 rc = fb_set_var(info, &var);388 if (rc && (default_vmode != VMODE_640_480_60 || default_cmode != CMODE_8))389 goto try_again;390 391 /* Register with fbdev layer */392 rc = register_framebuffer(info);393 if (rc < 0)394 return rc;395 396 fb_info(info, "Apple Platinum frame buffer device\n");397 398 return 0;399}400 401/*402 * Get the monitor sense value.403 * Note that this can be called before calibrate_delay,404 * so we can't use udelay.405 */406static int read_platinum_sense(struct fb_info_platinum *info)407{408 volatile struct platinum_regs __iomem *platinum_regs = info->platinum_regs;409 int sense;410 411 out_be32(&platinum_regs->reg[23].r, 7); /* turn off drivers */412 __delay(2000);413 sense = (~in_be32(&platinum_regs->reg[23].r) & 7) << 8;414 415 /* drive each sense line low in turn and collect the other 2 */416 out_be32(&platinum_regs->reg[23].r, 3); /* drive A low */417 __delay(2000);418 sense |= (~in_be32(&platinum_regs->reg[23].r) & 3) << 4;419 out_be32(&platinum_regs->reg[23].r, 5); /* drive B low */420 __delay(2000);421 sense |= (~in_be32(&platinum_regs->reg[23].r) & 4) << 1;422 sense |= (~in_be32(&platinum_regs->reg[23].r) & 1) << 2;423 out_be32(&platinum_regs->reg[23].r, 6); /* drive C low */424 __delay(2000);425 sense |= (~in_be32(&platinum_regs->reg[23].r) & 6) >> 1;426 427 out_be32(&platinum_regs->reg[23].r, 7); /* turn off drivers */428 429 return sense;430}431 432/*433 * This routine takes a user-supplied var, and picks the best vmode/cmode from it.434 * It also updates the var structure to the actual mode data obtained435 */436static int platinum_var_to_par(struct fb_var_screeninfo *var,437 struct fb_info_platinum *pinfo,438 int check_only)439{440 int vmode, cmode;441 442 if (mac_var_to_vmode(var, &vmode, &cmode) != 0) {443 printk(KERN_ERR "platinum_var_to_par: mac_var_to_vmode unsuccessful.\n");444 printk(KERN_ERR "platinum_var_to_par: var->xres = %d\n", var->xres);445 printk(KERN_ERR "platinum_var_to_par: var->yres = %d\n", var->yres);446 printk(KERN_ERR "platinum_var_to_par: var->xres_virtual = %d\n", var->xres_virtual);447 printk(KERN_ERR "platinum_var_to_par: var->yres_virtual = %d\n", var->yres_virtual);448 printk(KERN_ERR "platinum_var_to_par: var->bits_per_pixel = %d\n", var->bits_per_pixel);449 printk(KERN_ERR "platinum_var_to_par: var->pixclock = %d\n", var->pixclock);450 printk(KERN_ERR "platinum_var_to_par: var->vmode = %d\n", var->vmode);451 return -EINVAL;452 }453 454 if (!platinum_reg_init[vmode-1]) {455 printk(KERN_ERR "platinum_var_to_par, vmode %d not valid.\n", vmode);456 return -EINVAL;457 }458 459 if (platinum_vram_reqd(vmode, cmode) > pinfo->total_vram) {460 printk(KERN_ERR "platinum_var_to_par, not enough ram for vmode %d, cmode %d.\n", vmode, cmode);461 return -EINVAL;462 }463 464 if (mac_vmode_to_var(vmode, cmode, var))465 return -EINVAL;466 467 if (check_only)468 return 0;469 470 pinfo->vmode = vmode;471 pinfo->cmode = cmode;472 pinfo->xres = vmode_attrs[vmode-1].hres;473 pinfo->yres = vmode_attrs[vmode-1].vres;474 pinfo->xoffset = 0;475 pinfo->yoffset = 0;476 pinfo->vxres = pinfo->xres;477 pinfo->vyres = pinfo->yres;478 479 return 0;480}481 482 483/*484 * Parse user specified options (`video=platinumfb:')485 */486static int __init platinumfb_setup(char *options)487{488 char *this_opt;489 490 if (!options || !*options)491 return 0;492 493 while ((this_opt = strsep(&options, ",")) != NULL) {494 if (!strncmp(this_opt, "vmode:", 6)) {495 int vmode = simple_strtoul(this_opt+6, NULL, 0);496 if (vmode > 0 && vmode <= VMODE_MAX)497 default_vmode = vmode;498 } else if (!strncmp(this_opt, "cmode:", 6)) {499 int depth = simple_strtoul(this_opt+6, NULL, 0);500 switch (depth) {501 case 0:502 case 8:503 default_cmode = CMODE_8;504 break;505 case 15:506 case 16:507 default_cmode = CMODE_16;508 break;509 case 24:510 case 32:511 default_cmode = CMODE_32;512 break;513 }514 }515 }516 return 0;517}518 519#ifdef __powerpc__520#define invalidate_cache(addr) \521 asm volatile("eieio; dcbf 0,%1" \522 : "=m" (*(addr)) : "r" (addr) : "memory");523#else524#define invalidate_cache(addr)525#endif526 527static int platinumfb_probe(struct platform_device* odev)528{529 struct device_node *dp = odev->dev.of_node;530 struct fb_info *info;531 struct fb_info_platinum *pinfo;532 volatile __u8 *fbuffer;533 int bank0, bank1, bank2, bank3, rc;534 535 dev_info(&odev->dev, "Found Apple Platinum video hardware\n");536 537 info = framebuffer_alloc(sizeof(*pinfo), &odev->dev);538 if (!info)539 return -ENOMEM;540 541 pinfo = info->par;542 543 if (of_address_to_resource(dp, 0, &pinfo->rsrc_reg) ||544 of_address_to_resource(dp, 1, &pinfo->rsrc_fb)) {545 dev_err(&odev->dev, "Can't get resources\n");546 framebuffer_release(info);547 return -ENXIO;548 }549 dev_dbg(&odev->dev, " registers : 0x%llx...0x%llx\n",550 (unsigned long long)pinfo->rsrc_reg.start,551 (unsigned long long)pinfo->rsrc_reg.end);552 dev_dbg(&odev->dev, " framebuffer: 0x%llx...0x%llx\n",553 (unsigned long long)pinfo->rsrc_fb.start,554 (unsigned long long)pinfo->rsrc_fb.end);555 556 /* Do not try to request register space, they overlap with the557 * northbridge and that can fail. Only request framebuffer558 */559 if (!request_mem_region(pinfo->rsrc_fb.start,560 resource_size(&pinfo->rsrc_fb),561 "platinumfb framebuffer")) {562 printk(KERN_ERR "platinumfb: Can't request framebuffer !\n");563 framebuffer_release(info);564 return -ENXIO;565 }566 567 /* frame buffer - map only 4MB */568 pinfo->frame_buffer_phys = pinfo->rsrc_fb.start;569 pinfo->frame_buffer = ioremap_wt(pinfo->rsrc_fb.start, 0x400000);570 pinfo->base_frame_buffer = pinfo->frame_buffer;571 572 /* registers */573 pinfo->platinum_regs_phys = pinfo->rsrc_reg.start;574 pinfo->platinum_regs = ioremap(pinfo->rsrc_reg.start, 0x1000);575 576 pinfo->cmap_regs_phys = 0xf301b000; /* XXX not in prom? */577 request_mem_region(pinfo->cmap_regs_phys, 0x1000, "platinumfb cmap");578 pinfo->cmap_regs = ioremap(pinfo->cmap_regs_phys, 0x1000);579 580 /* Grok total video ram */581 out_be32(&pinfo->platinum_regs->reg[16].r, (unsigned)pinfo->frame_buffer_phys);582 out_be32(&pinfo->platinum_regs->reg[20].r, 0x1011); /* select max vram */583 out_be32(&pinfo->platinum_regs->reg[24].r, 0); /* switch in vram */584 585 fbuffer = pinfo->base_frame_buffer;586 fbuffer[0x100000] = 0x34;587 fbuffer[0x100008] = 0x0;588 invalidate_cache(&fbuffer[0x100000]);589 fbuffer[0x200000] = 0x56;590 fbuffer[0x200008] = 0x0;591 invalidate_cache(&fbuffer[0x200000]);592 fbuffer[0x300000] = 0x78;593 fbuffer[0x300008] = 0x0;594 invalidate_cache(&fbuffer[0x300000]);595 bank0 = 1; /* builtin 1MB vram, always there */596 bank1 = fbuffer[0x100000] == 0x34;597 bank2 = fbuffer[0x200000] == 0x56;598 bank3 = fbuffer[0x300000] == 0x78;599 pinfo->total_vram = (bank0 + bank1 + bank2 + bank3) * 0x100000;600 printk(KERN_INFO "platinumfb: Total VRAM = %dMB (%d%d%d%d)\n",601 (unsigned int) (pinfo->total_vram / 1024 / 1024),602 bank3, bank2, bank1, bank0);603 604 /*605 * Try to determine whether we have an old or a new DACula.606 */607 out_8(&pinfo->cmap_regs->addr, 0x40);608 pinfo->dactype = in_8(&pinfo->cmap_regs->d2);609 switch (pinfo->dactype) {610 case 0x3c:611 pinfo->clktype = 1;612 printk(KERN_INFO "platinumfb: DACula type 0x3c\n");613 break;614 case 0x84:615 pinfo->clktype = 0;616 printk(KERN_INFO "platinumfb: DACula type 0x84\n");617 break;618 default:619 pinfo->clktype = 0;620 printk(KERN_INFO "platinumfb: Unknown DACula type: %x\n", pinfo->dactype);621 break;622 }623 dev_set_drvdata(&odev->dev, info);624 625 rc = platinum_init_fb(info);626 if (rc != 0) {627 iounmap(pinfo->frame_buffer);628 iounmap(pinfo->platinum_regs);629 iounmap(pinfo->cmap_regs);630 framebuffer_release(info);631 }632 633 return rc;634}635 636static void platinumfb_remove(struct platform_device* odev)637{638 struct fb_info *info = dev_get_drvdata(&odev->dev);639 struct fb_info_platinum *pinfo = info->par;640 641 unregister_framebuffer (info);642 643 /* Unmap frame buffer and registers */644 iounmap(pinfo->frame_buffer);645 iounmap(pinfo->platinum_regs);646 iounmap(pinfo->cmap_regs);647 648 release_mem_region(pinfo->rsrc_fb.start,649 resource_size(&pinfo->rsrc_fb));650 651 release_mem_region(pinfo->cmap_regs_phys, 0x1000);652 653 framebuffer_release(info);654}655 656static struct of_device_id platinumfb_match[] =657{658 {659 .name = "platinum",660 },661 {},662};663 664static struct platform_driver platinum_driver =665{666 .driver = {667 .name = "platinumfb",668 .of_match_table = platinumfb_match,669 },670 .probe = platinumfb_probe,671 .remove = platinumfb_remove,672};673 674static int __init platinumfb_init(void)675{676#ifndef MODULE677 char *option = NULL;678 679 if (fb_get_options("platinumfb", &option))680 return -ENODEV;681 platinumfb_setup(option);682#endif683 platform_driver_register(&platinum_driver);684 685 return 0;686}687 688static void __exit platinumfb_exit(void)689{690 platform_driver_unregister(&platinum_driver);691}692 693MODULE_LICENSE("GPL");694MODULE_DESCRIPTION("framebuffer driver for Apple Platinum video");695module_init(platinumfb_init);696 697#ifdef MODULE698module_exit(platinumfb_exit);699#endif700