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linux/drivers/video/geode/lxfb_core.c
Andres Salomon 3553a2fa8c OLPC: gxfb/lxfb: add DCON panel modes to framebuffer drivers 
Since there's no way to autodetect panel modes, we're forced to hardcode them
in the driver and add a big fat #ifdef.  The OLPC DCON needs a specific mode
line (at 1200x900).  This adds it to both gxfb and lxfb.

(Jordan said: We could probably detect the panel mode, but there isn't any
reason to since the panel timings are well known and won't change.  While OFW
detection would be good computer science fu, it would be a wasted effort since
its so easy to hard code them into the table.)

Signed-off-by: Andres Salomon <dilinger@debian.org>
Cc: Jordan Crouse <jordan.crouse@amd.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-28 08:58:40 -07:00

687 lines
17 KiB
C
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/*
* Geode LX framebuffer driver.
*
* Copyright (C) 2007 Advanced Micro Devices, Inc.
* Built from gxfb (which is Copyright (C) 2006 Arcom Control Systems Ltd.)
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/console.h>
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/suspend.h>
#include <linux/delay.h>
#include <linux/fb.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/uaccess.h>
#include "lxfb.h"
static char *mode_option;
static int noclear, nopanel, nocrt;
static int vram;
static int vt_switch;
/* Most of these modes are sorted in ascending order, but
* since the first entry in this table is the "default" mode,
* we try to make it something sane - 640x480-60 is sane
*/
static struct fb_videomode geode_modedb[] __initdata = {
/* 640x480-60 */
{ NULL, 60, 640, 480, 39682, 48, 8, 25, 2, 88, 2,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
FB_VMODE_NONINTERLACED, 0 },
/* 640x400-70 */
{ NULL, 70, 640, 400, 39770, 40, 8, 28, 5, 96, 2,
FB_SYNC_HOR_HIGH_ACT,
FB_VMODE_NONINTERLACED, 0 },
/* 640x480-70 */
{ NULL, 70, 640, 480, 35014, 88, 24, 15, 2, 64, 3,
0, FB_VMODE_NONINTERLACED, 0 },
/* 640x480-72 */
{ NULL, 72, 640, 480, 32102, 120, 16, 20, 1, 40, 3,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
FB_VMODE_NONINTERLACED, 0 },
/* 640x480-75 */
{ NULL, 75, 640, 480, 31746, 120, 16, 16, 1, 64, 3,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
FB_VMODE_NONINTERLACED, 0 },
/* 640x480-85 */
{ NULL, 85, 640, 480, 27780, 80, 56, 25, 1, 56, 3,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
FB_VMODE_NONINTERLACED, 0 },
/* 640x480-90 */
{ NULL, 90, 640, 480, 26392, 96, 32, 22, 1, 64, 3,
0, FB_VMODE_NONINTERLACED, 0 },
/* 640x480-100 */
{ NULL, 100, 640, 480, 23167, 104, 40, 25, 1, 64, 3,
0, FB_VMODE_NONINTERLACED, 0 },
/* 640x480-60 */
{ NULL, 60, 640, 480, 39682, 48, 16, 25, 10, 88, 2,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
FB_VMODE_NONINTERLACED, 0 },
/* 800x600-56 */
{ NULL, 56, 800, 600, 27901, 128, 24, 22, 1, 72, 2,
0, FB_VMODE_NONINTERLACED, 0 },
/* 800x600-60 */
{ NULL, 60, 800, 600, 25131, 72, 32, 23, 1, 136, 4,
0, FB_VMODE_NONINTERLACED, 0 },
/* 800x600-70 */
{ NULL, 70, 800, 600, 21873, 120, 40, 21, 4, 80, 3,
0, FB_VMODE_NONINTERLACED, 0 },
/* 800x600-72 */
{ NULL, 72, 800, 600, 20052, 64, 56, 23, 37, 120, 6,
0, FB_VMODE_NONINTERLACED, 0 },
/* 800x600-75 */
{ NULL, 75, 800, 600, 20202, 160, 16, 21, 1, 80, 3,
0, FB_VMODE_NONINTERLACED, 0 },
/* 800x600-85 */
{ NULL, 85, 800, 600, 17790, 152, 32, 27, 1, 64, 3,
0, FB_VMODE_NONINTERLACED, 0 },
/* 800x600-90 */
{ NULL, 90, 800, 600, 16648, 128, 40, 28, 1, 88, 3,
0, FB_VMODE_NONINTERLACED, 0 },
/* 800x600-100 */
{ NULL, 100, 800, 600, 14667, 136, 48, 27, 1, 88, 3,
0, FB_VMODE_NONINTERLACED, 0 },
/* 800x600-60 */
{ NULL, 60, 800, 600, 25131, 88, 40, 23, 1, 128, 4,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
FB_VMODE_NONINTERLACED, 0 },
/* 1024x768-60 */
{ NULL, 60, 1024, 768, 15385, 160, 24, 29, 3, 136, 6,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
FB_VMODE_NONINTERLACED, 0 },
/* 1024x768-70 */
{ NULL, 70, 1024, 768, 13346, 144, 24, 29, 3, 136, 6,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
FB_VMODE_NONINTERLACED, 0 },
/* 1024x768-72 */
{ NULL, 72, 1024, 768, 12702, 168, 56, 29, 4, 112, 3,
0, FB_VMODE_NONINTERLACED, 0 },
/* 1024x768-75 */
{ NULL, 75, 1024, 768, 12703, 176, 16, 28, 1, 96, 3,
0, FB_VMODE_NONINTERLACED, 0 },
/* 1024x768-85 */
{ NULL, 85, 1024, 768, 10581, 208, 48, 36, 1, 96, 3,
0, FB_VMODE_NONINTERLACED, 0 },
/* 1024x768-90 */
{ NULL, 90, 1024, 768, 9981, 176, 64, 37, 1, 112, 3,
0, FB_VMODE_NONINTERLACED, 0 },
/* 1024x768-100 */
{ NULL, 100, 1024, 768, 8825, 184, 72, 42, 1, 112, 3,
0, FB_VMODE_NONINTERLACED, 0 },
/* 1024x768-60 */
{ NULL, 60, 1024, 768, 15385, 160, 24, 29, 3, 136, 6,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
FB_VMODE_NONINTERLACED, 0 },
/* 1152x864-60 */
{ NULL, 60, 1152, 864, 12251, 184, 64, 27, 1, 120, 3,
0, FB_VMODE_NONINTERLACED, 0 },
/* 1152x864-70 */
{ NULL, 70, 1152, 864, 10254, 192, 72, 32, 8, 120, 3,
0, FB_VMODE_NONINTERLACED, 0 },
/* 1152x864-72 */
{ NULL, 72, 1152, 864, 9866, 200, 72, 33, 7, 128, 3,
0, FB_VMODE_NONINTERLACED, 0 },
/* 1152x864-75 */
{ NULL, 75, 1152, 864, 9259, 256, 64, 32, 1, 128, 3,
0, FB_VMODE_NONINTERLACED, 0 },
/* 1152x864-85 */
{ NULL, 85, 1152, 864, 8357, 200, 72, 37, 3, 128, 3,
0, FB_VMODE_NONINTERLACED, 0 },
/* 1152x864-90 */
{ NULL, 90, 1152, 864, 7719, 208, 80, 42, 9, 128, 3,
0, FB_VMODE_NONINTERLACED, 0 },
/* 1152x864-100 */
{ NULL, 100, 1152, 864, 6947, 208, 80, 48, 3, 128, 3,
0, FB_VMODE_NONINTERLACED, 0 },
/* 1152x864-60 */
{ NULL, 60, 1152, 864, 12251, 184, 64, 27, 1, 120, 3,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
FB_VMODE_NONINTERLACED, 0 },
/* 1280x1024-60 */
{ NULL, 60, 1280, 1024, 9262, 248, 48, 38, 1, 112, 3,
0, FB_VMODE_NONINTERLACED, 0 },
/* 1280x1024-70 */
{ NULL, 70, 1280, 1024, 7719, 224, 88, 38, 6, 136, 3,
0, FB_VMODE_NONINTERLACED, 0 },
/* 1280x1024-72 */
{ NULL, 72, 1280, 1024, 7490, 224, 88, 39, 7, 136, 3,
0, FB_VMODE_NONINTERLACED, 0 },
/* 1280x1024-75 */
{ NULL, 75, 1280, 1024, 7409, 248, 16, 38, 1, 144, 3,
0, FB_VMODE_NONINTERLACED, 0 },
/* 1280x1024-85 */
{ NULL, 85, 1280, 1024, 6351, 224, 64, 44, 1, 160, 3,
0, FB_VMODE_NONINTERLACED, 0 },
/* 1280x1024-90 */
{ NULL, 90, 1280, 1024, 5791, 240, 96, 51, 12, 144, 3,
0, FB_VMODE_NONINTERLACED, 0 },
/* 1280x1024-100 */
{ NULL, 100, 1280, 1024, 5212, 240, 96, 57, 6, 144, 3,
0, FB_VMODE_NONINTERLACED, 0 },
/* 1280x1024-60 */
{ NULL, 60, 1280, 1024, 9262, 248, 48, 38, 1, 112, 3,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
FB_VMODE_NONINTERLACED, 0 },
/* 1600x1200-60 */
{ NULL, 60, 1600, 1200, 6172, 304, 64, 46, 1, 192, 3,
0, FB_VMODE_NONINTERLACED, 0 },
/* 1600x1200-70 */
{ NULL, 70, 1600, 1200, 5291, 304, 64, 46, 1, 192, 3,
0, FB_VMODE_NONINTERLACED, 0 },
/* 1600x1200-72 */
{ NULL, 72, 1600, 1200, 5053, 288, 112, 47, 13, 176, 3,
0, FB_VMODE_NONINTERLACED, 0 },
/* 1600x1200-75 */
{ NULL, 75, 1600, 1200, 4938, 304, 64, 46, 1, 192, 3,
0, FB_VMODE_NONINTERLACED, 0 },
/* 1600x1200-85 */
{ NULL, 85, 1600, 1200, 4357, 304, 64, 46, 1, 192, 3,
0, FB_VMODE_NONINTERLACED, 0 },
/* 1600x1200-90 */
{ NULL, 90, 1600, 1200, 3981, 304, 128, 60, 1, 176, 3,
0, FB_VMODE_NONINTERLACED, 0 },
/* 1600x1200-100 */
{ NULL, 100, 1600, 1200, 3563, 304, 128, 67, 1, 176, 3,
0, FB_VMODE_NONINTERLACED, 0 },
/* 1600x1200-60 */
{ NULL, 60, 1600, 1200, 6172, 304, 64, 46, 1, 192, 3,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
FB_VMODE_NONINTERLACED, 0 },
/* 1920x1440-60 */
{ NULL, 60, 1920, 1440, 4273, 344, 128, 56, 1, 208, 3,
0, FB_VMODE_NONINTERLACED, 0 },
/* 1920x1440-70 */
{ NULL, 70, 1920, 1440, 3593, 360, 152, 55, 8, 208, 3,
0, FB_VMODE_NONINTERLACED, 0 },
/* 1920x1440-72 */
{ NULL, 72, 1920, 1440, 3472, 360, 152, 68, 4, 208, 3,
0, FB_VMODE_NONINTERLACED, 0 },
/* 1920x1440-75 */
{ NULL, 75, 1920, 1440, 3367, 352, 144, 56, 1, 224, 3,
0, FB_VMODE_NONINTERLACED, 0 },
/* 1920x1440-85 */
{ NULL, 85, 1920, 1440, 2929, 368, 152, 68, 1, 216, 3,
0, FB_VMODE_NONINTERLACED, 0 },
};
#ifdef CONFIG_OLPC
#include <asm/olpc.h>
static struct fb_videomode olpc_dcon_modedb[] __initdata = {
/* The only mode the DCON has is 1200x900 */
{ NULL, 50, 1200, 900, 17460, 24, 8, 4, 5, 8, 3,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
FB_VMODE_NONINTERLACED, 0 }
};
static void __init get_modedb(struct fb_videomode **modedb, unsigned int *size)
{
if (olpc_has_dcon()) {
*modedb = (struct fb_videomode *) olpc_dcon_modedb;
*size = ARRAY_SIZE(olpc_dcon_modedb);
} else {
*modedb = (struct fb_videomode *) geode_modedb;
*size = ARRAY_SIZE(geode_modedb);
}
}
#else
static void __init get_modedb(struct fb_videomode **modedb, unsigned int *size)
{
*modedb = (struct fb_videomode *) geode_modedb;
*size = ARRAY_SIZE(geode_modedb);
}
#endif
static int lxfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
{
if (var->xres > 1920 || var->yres > 1440)
return -EINVAL;
if (var->bits_per_pixel == 32) {
var->red.offset = 16; var->red.length = 8;
var->green.offset = 8; var->green.length = 8;
var->blue.offset = 0; var->blue.length = 8;
} else if (var->bits_per_pixel == 16) {
var->red.offset = 11; var->red.length = 5;
var->green.offset = 5; var->green.length = 6;
var->blue.offset = 0; var->blue.length = 5;
} else if (var->bits_per_pixel == 8) {
var->red.offset = 0; var->red.length = 8;
var->green.offset = 0; var->green.length = 8;
var->blue.offset = 0; var->blue.length = 8;
} else
return -EINVAL;
var->transp.offset = 0; var->transp.length = 0;
/* Enough video memory? */
if ((lx_get_pitch(var->xres, var->bits_per_pixel) * var->yres)
> info->fix.smem_len)
return -EINVAL;
return 0;
}
static int lxfb_set_par(struct fb_info *info)
{
if (info->var.bits_per_pixel > 8) {
info->fix.visual = FB_VISUAL_TRUECOLOR;
fb_dealloc_cmap(&info->cmap);
} else {
info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
fb_alloc_cmap(&info->cmap, 1<<info->var.bits_per_pixel, 0);
}
info->fix.line_length = lx_get_pitch(info->var.xres,
info->var.bits_per_pixel);
lx_set_mode(info);
return 0;
}
static inline u_int chan_to_field(u_int chan, struct fb_bitfield *bf)
{
chan &= 0xffff;
chan >>= 16 - bf->length;
return chan << bf->offset;
}
static int lxfb_setcolreg(unsigned regno, unsigned red, unsigned green,
unsigned blue, unsigned transp,
struct fb_info *info)
{
if (info->var.grayscale) {
/* grayscale = 0.30*R + 0.59*G + 0.11*B */
red = green = blue = (red * 77 + green * 151 + blue * 28) >> 8;
}
/* Truecolor has hardware independent palette */
if (info->fix.visual == FB_VISUAL_TRUECOLOR) {
u32 *pal = info->pseudo_palette;
u32 v;
if (regno >= 16)
return -EINVAL;
v = chan_to_field(red, &info->var.red);
v |= chan_to_field(green, &info->var.green);
v |= chan_to_field(blue, &info->var.blue);
pal[regno] = v;
} else {
if (regno >= 256)
return -EINVAL;
lx_set_palette_reg(info, regno, red, green, blue);
}
return 0;
}
static int lxfb_blank(int blank_mode, struct fb_info *info)
{
return lx_blank_display(info, blank_mode);
}
static int __init lxfb_map_video_memory(struct fb_info *info,
struct pci_dev *dev)
{
struct lxfb_par *par = info->par;
int ret;
ret = pci_enable_device(dev);
if (ret)
return ret;
ret = pci_request_region(dev, 0, "lxfb-framebuffer");
if (ret)
return ret;
ret = pci_request_region(dev, 1, "lxfb-gp");
if (ret)
return ret;
ret = pci_request_region(dev, 2, "lxfb-vg");
if (ret)
return ret;
ret = pci_request_region(dev, 3, "lxfb-vp");
if (ret)
return ret;
info->fix.smem_start = pci_resource_start(dev, 0);
info->fix.smem_len = vram ? vram : lx_framebuffer_size();
info->screen_base = ioremap(info->fix.smem_start, info->fix.smem_len);
ret = -ENOMEM;
if (info->screen_base == NULL)
return ret;
par->gp_regs = ioremap(pci_resource_start(dev, 1),
pci_resource_len(dev, 1));
if (par->gp_regs == NULL)
return ret;
par->dc_regs = ioremap(pci_resource_start(dev, 2),
pci_resource_len(dev, 2));
if (par->dc_regs == NULL)
return ret;
par->vp_regs = ioremap(pci_resource_start(dev, 3),
pci_resource_len(dev, 3));
if (par->vp_regs == NULL)
return ret;
write_dc(par, DC_UNLOCK, DC_UNLOCK_UNLOCK);
write_dc(par, DC_GLIU0_MEM_OFFSET, info->fix.smem_start & 0xFF000000);
write_dc(par, DC_UNLOCK, DC_UNLOCK_LOCK);
dev_info(&dev->dev, "%d KB of video memory at 0x%lx\n",
info->fix.smem_len / 1024, info->fix.smem_start);
return 0;
}
static struct fb_ops lxfb_ops = {
.owner = THIS_MODULE,
.fb_check_var = lxfb_check_var,
.fb_set_par = lxfb_set_par,
.fb_setcolreg = lxfb_setcolreg,
.fb_blank = lxfb_blank,
/* No HW acceleration for now. */
.fb_fillrect = cfb_fillrect,
.fb_copyarea = cfb_copyarea,
.fb_imageblit = cfb_imageblit,
};
static struct fb_info * __init lxfb_init_fbinfo(struct device *dev)
{
struct lxfb_par *par;
struct fb_info *info;
/* Alloc enough space for the pseudo palette. */
info = framebuffer_alloc(sizeof(struct lxfb_par) + sizeof(u32) * 16,
dev);
if (!info)
return NULL;
par = info->par;
strcpy(info->fix.id, "Geode LX");
info->fix.type = FB_TYPE_PACKED_PIXELS;
info->fix.type_aux = 0;
info->fix.xpanstep = 0;
info->fix.ypanstep = 0;
info->fix.ywrapstep = 0;
info->fix.accel = FB_ACCEL_NONE;
info->var.nonstd = 0;
info->var.activate = FB_ACTIVATE_NOW;
info->var.height = -1;
info->var.width = -1;
info->var.accel_flags = 0;
info->var.vmode = FB_VMODE_NONINTERLACED;
info->fbops = &lxfb_ops;
info->flags = FBINFO_DEFAULT;
info->node = -1;
info->pseudo_palette = (void *)par + sizeof(struct lxfb_par);
info->var.grayscale = 0;
return info;
}
#ifdef CONFIG_PM
static int lxfb_suspend(struct pci_dev *pdev, pm_message_t state)
{
struct fb_info *info = pci_get_drvdata(pdev);
if (state.event == PM_EVENT_SUSPEND) {
acquire_console_sem();
lx_powerdown(info);
fb_set_suspend(info, 1);
release_console_sem();
}
/* there's no point in setting PCI states; we emulate PCI, so
* we don't end up getting power savings anyways */
return 0;
}
static int lxfb_resume(struct pci_dev *pdev)
{
struct fb_info *info = pci_get_drvdata(pdev);
int ret;
acquire_console_sem();
ret = lx_powerup(info);
if (ret) {
printk(KERN_ERR "lxfb: power up failed!\n");
return ret;
}
fb_set_suspend(info, 0);
release_console_sem();
return 0;
}
#else
#define lxfb_suspend NULL
#define lxfb_resume NULL
#endif
static int __init lxfb_probe(struct pci_dev *pdev,
const struct pci_device_id *id)
{
struct lxfb_par *par;
struct fb_info *info;
int ret;
struct fb_videomode *modedb_ptr;
unsigned int modedb_size;
info = lxfb_init_fbinfo(&pdev->dev);
if (info == NULL)
return -ENOMEM;
par = info->par;
ret = lxfb_map_video_memory(info, pdev);
if (ret < 0) {
dev_err(&pdev->dev,
"failed to map frame buffer or controller registers\n");
goto err;
}
/* Set up the desired outputs */
par->output = 0;
par->output |= (nopanel) ? 0 : OUTPUT_PANEL;
par->output |= (nocrt) ? 0 : OUTPUT_CRT;
/* Set up the mode database */
get_modedb(&modedb_ptr, &modedb_size);
ret = fb_find_mode(&info->var, info, mode_option,
modedb_ptr, modedb_size, NULL, 16);
if (ret == 0 || ret == 4) {
dev_err(&pdev->dev, "could not find valid video mode\n");
ret = -EINVAL;
goto err;
}
/* Clear the screen of garbage, unless noclear was specified,
* in which case we assume the user knows what he is doing */
if (!noclear)
memset_io(info->screen_base, 0, info->fix.smem_len);
/* Set the mode */
lxfb_check_var(&info->var, info);
lxfb_set_par(info);
pm_set_vt_switch(vt_switch);
if (register_framebuffer(info) < 0) {
ret = -EINVAL;
goto err;
}
pci_set_drvdata(pdev, info);
printk(KERN_INFO "fb%d: %s frame buffer device\n",
info->node, info->fix.id);
return 0;
err:
if (info->screen_base) {
iounmap(info->screen_base);
pci_release_region(pdev, 0);
}
if (par->gp_regs) {
iounmap(par->gp_regs);
pci_release_region(pdev, 1);
}
if (par->dc_regs) {
iounmap(par->dc_regs);
pci_release_region(pdev, 2);
}
if (par->vp_regs) {
iounmap(par->vp_regs);
pci_release_region(pdev, 3);
}
if (info)
framebuffer_release(info);
return ret;
}
static void lxfb_remove(struct pci_dev *pdev)
{
struct fb_info *info = pci_get_drvdata(pdev);
struct lxfb_par *par = info->par;
unregister_framebuffer(info);
iounmap(info->screen_base);
pci_release_region(pdev, 0);
iounmap(par->gp_regs);
pci_release_region(pdev, 1);
iounmap(par->dc_regs);
pci_release_region(pdev, 2);
iounmap(par->vp_regs);
pci_release_region(pdev, 3);
pci_set_drvdata(pdev, NULL);
framebuffer_release(info);
}
static struct pci_device_id lxfb_id_table[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_LX_VIDEO) },
{ 0, }
};
MODULE_DEVICE_TABLE(pci, lxfb_id_table);
static struct pci_driver lxfb_driver = {
.name = "lxfb",
.id_table = lxfb_id_table,
.probe = lxfb_probe,
.remove = lxfb_remove,
.suspend = lxfb_suspend,
.resume = lxfb_resume,
};
#ifndef MODULE
static int __init lxfb_setup(char *options)
{
char *opt;
if (!options || !*options)
return 0;
while ((opt = strsep(&options, ",")) != NULL) {
if (!*opt)
continue;
if (!strcmp(opt, "noclear"))
noclear = 1;
else if (!strcmp(opt, "nopanel"))
nopanel = 1;
else if (!strcmp(opt, "nocrt"))
nocrt = 1;
else
mode_option = opt;
}
return 0;
}
#endif
static int __init lxfb_init(void)
{
#ifndef MODULE
char *option = NULL;
if (fb_get_options("lxfb", &option))
return -ENODEV;
lxfb_setup(option);
#endif
return pci_register_driver(&lxfb_driver);
}
static void __exit lxfb_cleanup(void)
{
pci_unregister_driver(&lxfb_driver);
}
module_init(lxfb_init);
module_exit(lxfb_cleanup);
module_param(mode_option, charp, 0);
MODULE_PARM_DESC(mode_option, "video mode (<x>x<y>[-<bpp>][@<refr>])");
module_param(vram, int, 0);
MODULE_PARM_DESC(vram, "video memory size");
module_param(vt_switch, int, 0);
MODULE_PARM_DESC(vt_switch, "enable VT switch during suspend/resume");
MODULE_DESCRIPTION("Framebuffer driver for the AMD Geode LX");
MODULE_LICENSE("GPL");
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