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linuxdebug/drivers/video/fbdev/kyro/fbdev.c

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null pointer error
2024-07-16 15:50:57 +02:00
/*
* linux/drivers/video/kyro/fbdev.c
*
* Copyright (C) 2002 STMicroelectronics
* Copyright (C) 2003, 2004 Paul Mundt
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file COPYING in the main directory of this archive
* for more details.
*/
#include <linux/aperture.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/delay.h>
#include <linux/fb.h>
#include <linux/ioctl.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <asm/io.h>
#include <linux/uaccess.h>
#include <video/kyro.h>
#include "STG4000Reg.h"
#include "STG4000Interface.h"
/*
* PCI Definitions
*/
#define PCI_VENDOR_ID_ST 0x104a
#define PCI_DEVICE_ID_STG4000 0x0010
#define KHZ2PICOS(a) (1000000000UL/(a))
/****************************************************************************/
static struct fb_fix_screeninfo kyro_fix = {
.id = "ST Kyro",
.type = FB_TYPE_PACKED_PIXELS,
.visual = FB_VISUAL_TRUECOLOR,
.accel = FB_ACCEL_NONE,
};
static const struct fb_var_screeninfo kyro_var = {
/* 640x480, 16bpp @ 60 Hz */
.xres = 640,
.yres = 480,
.xres_virtual = 640,
.yres_virtual = 480,
.bits_per_pixel = 16,
.red = { 11, 5, 0 },
.green = { 5, 6, 0 },
.blue = { 0, 5, 0 },
.activate = FB_ACTIVATE_NOW,
.height = -1,
.width = -1,
.pixclock = KHZ2PICOS(25175),
.left_margin = 48,
.right_margin = 16,
.upper_margin = 33,
.lower_margin = 10,
.hsync_len = 96,
.vsync_len = 2,
.vmode = FB_VMODE_NONINTERLACED,
};
typedef struct {
STG4000REG __iomem *pSTGReg; /* Virtual address of PCI register region */
u32 ulNextFreeVidMem; /* Offset from start of vid mem to next free region */
u32 ulOverlayOffset; /* Offset from start of vid mem to overlay */
u32 ulOverlayStride; /* Interleaved YUV and 422 mode Y stride */
u32 ulOverlayUVStride; /* 422 mode U & V stride */
} device_info_t;
/* global graphics card info structure (one per card) */
static device_info_t deviceInfo;
static char *mode_option = NULL;
static int nopan = 0;
static int nowrap = 1;
static int nomtrr = 0;
/* PCI driver prototypes */
static int kyrofb_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
static void kyrofb_remove(struct pci_dev *pdev);
static struct fb_videomode kyro_modedb[] = {
{
/* 640x350 @ 85Hz */
NULL, 85, 640, 350, KHZ2PICOS(31500),
96, 32, 60, 32, 64, 3,
FB_SYNC_HOR_HIGH_ACT, FB_VMODE_NONINTERLACED
}, {
/* 640x400 @ 85Hz */
NULL, 85, 640, 400, KHZ2PICOS(31500),
96, 32, 41, 1, 64, 3,
FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
}, {
/* 720x400 @ 85Hz */
NULL, 85, 720, 400, KHZ2PICOS(35500),
108, 36, 42, 1, 72, 3,
FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
}, {
/* 640x480 @ 60Hz */
NULL, 60, 640, 480, KHZ2PICOS(25175),
48, 16, 33, 10, 96, 2,
0, FB_VMODE_NONINTERLACED
}, {
/* 640x480 @ 72Hz */
NULL, 72, 640, 480, KHZ2PICOS(31500),
128, 24, 28, 9, 40, 3,
0, FB_VMODE_NONINTERLACED
}, {
/* 640x480 @ 75Hz */
NULL, 75, 640, 480, KHZ2PICOS(31500),
120, 16, 16, 1, 64, 3,
0, FB_VMODE_NONINTERLACED
}, {
/* 640x480 @ 85Hz */
NULL, 85, 640, 480, KHZ2PICOS(36000),
80, 56, 25, 1, 56, 3,
0, FB_VMODE_NONINTERLACED
}, {
/* 800x600 @ 56Hz */
NULL, 56, 800, 600, KHZ2PICOS(36000),
128, 24, 22, 1, 72, 2,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
}, {
/* 800x600 @ 60Hz */
NULL, 60, 800, 600, KHZ2PICOS(40000),
88, 40, 23, 1, 128, 4,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
}, {
/* 800x600 @ 72Hz */
NULL, 72, 800, 600, KHZ2PICOS(50000),
64, 56, 23, 37, 120, 6,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
}, {
/* 800x600 @ 75Hz */
NULL, 75, 800, 600, KHZ2PICOS(49500),
160, 16, 21, 1, 80, 3,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
}, {
/* 800x600 @ 85Hz */
NULL, 85, 800, 600, KHZ2PICOS(56250),
152, 32, 27, 1, 64, 3,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
}, {
/* 1024x768 @ 60Hz */
NULL, 60, 1024, 768, KHZ2PICOS(65000),
160, 24, 29, 3, 136, 6,
0, FB_VMODE_NONINTERLACED
}, {
/* 1024x768 @ 70Hz */
NULL, 70, 1024, 768, KHZ2PICOS(75000),
144, 24, 29, 3, 136, 6,
0, FB_VMODE_NONINTERLACED
}, {
/* 1024x768 @ 75Hz */
NULL, 75, 1024, 768, KHZ2PICOS(78750),
176, 16, 28, 1, 96, 3,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
}, {
/* 1024x768 @ 85Hz */
NULL, 85, 1024, 768, KHZ2PICOS(94500),
208, 48, 36, 1, 96, 3,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
}, {
/* 1152x864 @ 75Hz */
NULL, 75, 1152, 864, KHZ2PICOS(108000),
256, 64, 32, 1, 128, 3,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
}, {
/* 1280x960 @ 60Hz */
NULL, 60, 1280, 960, KHZ2PICOS(108000),
312, 96, 36, 1, 112, 3,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
}, {
/* 1280x960 @ 85Hz */
NULL, 85, 1280, 960, KHZ2PICOS(148500),
224, 64, 47, 1, 160, 3,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
}, {
/* 1280x1024 @ 60Hz */
NULL, 60, 1280, 1024, KHZ2PICOS(108000),
248, 48, 38, 1, 112, 3,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
}, {
/* 1280x1024 @ 75Hz */
NULL, 75, 1280, 1024, KHZ2PICOS(135000),
248, 16, 38, 1, 144, 3,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
}, {
/* 1280x1024 @ 85Hz */
NULL, 85, 1280, 1024, KHZ2PICOS(157500),
224, 64, 44, 1, 160, 3,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
}, {
/* 1600x1200 @ 60Hz */
NULL, 60, 1600, 1200, KHZ2PICOS(162000),
304, 64, 46, 1, 192, 3,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
}, {
/* 1600x1200 @ 65Hz */
NULL, 65, 1600, 1200, KHZ2PICOS(175500),
304, 64, 46, 1, 192, 3,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
}, {
/* 1600x1200 @ 70Hz */
NULL, 70, 1600, 1200, KHZ2PICOS(189000),
304, 64, 46, 1, 192, 3,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
}, {
/* 1600x1200 @ 75Hz */
NULL, 75, 1600, 1200, KHZ2PICOS(202500),
304, 64, 46, 1, 192, 3,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
}, {
/* 1600x1200 @ 85Hz */
NULL, 85, 1600, 1200, KHZ2PICOS(229500),
304, 64, 46, 1, 192, 3,
FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
}, {
/* 1792x1344 @ 60Hz */
NULL, 60, 1792, 1344, KHZ2PICOS(204750),
328, 128, 46, 1, 200, 3,
FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
}, {
/* 1792x1344 @ 75Hz */
NULL, 75, 1792, 1344, KHZ2PICOS(261000),
352, 96, 69, 1, 216, 3,
FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
}, {
/* 1856x1392 @ 60Hz */
NULL, 60, 1856, 1392, KHZ2PICOS(218250),
352, 96, 43, 1, 224, 3,
FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
}, {
/* 1856x1392 @ 75Hz */
NULL, 75, 1856, 1392, KHZ2PICOS(288000),
352, 128, 104, 1, 224, 3,
FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
}, {
/* 1920x1440 @ 60Hz */
NULL, 60, 1920, 1440, KHZ2PICOS(234000),
344, 128, 56, 1, 208, 3,
FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
}, {
/* 1920x1440 @ 75Hz */
NULL, 75, 1920, 1440, KHZ2PICOS(297000),
352, 144, 56, 1, 224, 3,
FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
},
};
#define NUM_TOTAL_MODES ARRAY_SIZE(kyro_modedb)
/*
* This needs to be kept ordered corresponding to kyro_modedb.
*/
enum {
VMODE_640_350_85,
VMODE_640_400_85,
VMODE_720_400_85,
VMODE_640_480_60,
VMODE_640_480_72,
VMODE_640_480_75,
VMODE_640_480_85,
VMODE_800_600_56,
VMODE_800_600_60,
VMODE_800_600_72,
VMODE_800_600_75,
VMODE_800_600_85,
VMODE_1024_768_60,
VMODE_1024_768_70,
VMODE_1024_768_75,
VMODE_1024_768_85,
VMODE_1152_864_75,
VMODE_1280_960_60,
VMODE_1280_960_85,
VMODE_1280_1024_60,
VMODE_1280_1024_75,
VMODE_1280_1024_85,
VMODE_1600_1200_60,
VMODE_1600_1200_65,
VMODE_1600_1200_70,
VMODE_1600_1200_75,
VMODE_1600_1200_85,
VMODE_1792_1344_60,
VMODE_1792_1344_75,
VMODE_1856_1392_60,
VMODE_1856_1392_75,
VMODE_1920_1440_60,
VMODE_1920_1440_75,
};
/* Accessors */
static int kyro_dev_video_mode_set(struct fb_info *info)
{
struct kyrofb_info *par = info->par;
/* Turn off display */
StopVTG(deviceInfo.pSTGReg);
DisableRamdacOutput(deviceInfo.pSTGReg);
/* Bring us out of VGA and into Hi-Res mode, if not already. */
DisableVGA(deviceInfo.pSTGReg);
if (InitialiseRamdac(deviceInfo.pSTGReg,
info->var.bits_per_pixel,
info->var.xres, info->var.yres,
par->HSP, par->VSP, &par->PIXCLK) < 0)
return -EINVAL;
SetupVTG(deviceInfo.pSTGReg, par);
ResetOverlayRegisters(deviceInfo.pSTGReg);
/* Turn on display in new mode */
EnableRamdacOutput(deviceInfo.pSTGReg);
StartVTG(deviceInfo.pSTGReg);
deviceInfo.ulNextFreeVidMem = info->var.xres * info->var.yres *
info->var.bits_per_pixel;
deviceInfo.ulOverlayOffset = 0;
return 0;
}
static int kyro_dev_overlay_create(u32 ulWidth,
u32 ulHeight, int bLinear)
{
u32 offset;
u32 stride, uvStride;
if (deviceInfo.ulOverlayOffset != 0)
/*
* Can only create one overlay without resetting the card or
* changing display mode
*/
return -EINVAL;
ResetOverlayRegisters(deviceInfo.pSTGReg);
/* Overlays are addressed in multiples of 16bytes or 32bytes, so make
* sure the start offset is on an appropriate boundary.
*/
offset = deviceInfo.ulNextFreeVidMem;
if ((offset & 0x1f) != 0) {
offset = (offset + 32L) & 0xffffffE0L;
}
if (CreateOverlaySurface(deviceInfo.pSTGReg, ulWidth, ulHeight,
bLinear, offset, &stride, &uvStride) < 0)
return -EINVAL;
deviceInfo.ulOverlayOffset = offset;
deviceInfo.ulOverlayStride = stride;
deviceInfo.ulOverlayUVStride = uvStride;
deviceInfo.ulNextFreeVidMem = offset + (ulHeight * stride) + (ulHeight * 2 * uvStride);
SetOverlayBlendMode(deviceInfo.pSTGReg, GLOBAL_ALPHA, 0xf, 0x0);
return 0;
}
static int kyro_dev_overlay_viewport_set(u32 x, u32 y, u32 ulWidth, u32 ulHeight)
{
if (deviceInfo.ulOverlayOffset == 0)
/* probably haven't called CreateOverlay yet */
return -EINVAL;
if (ulWidth == 0 || ulWidth == 0xffffffff ||
ulHeight == 0 || ulHeight == 0xffffffff ||
(x < 2 && ulWidth + 2 == 0))
return -EINVAL;
/* Stop Ramdac Output */
DisableRamdacOutput(deviceInfo.pSTGReg);
SetOverlayViewPort(deviceInfo.pSTGReg,
x, y, x + ulWidth - 1, y + ulHeight - 1);
EnableOverlayPlane(deviceInfo.pSTGReg);
/* Start Ramdac Output */
EnableRamdacOutput(deviceInfo.pSTGReg);
return 0;
}
static inline unsigned long get_line_length(int x, int bpp)
{
return (unsigned long)((((x*bpp)+31)&~31) >> 3);
}
static int kyrofb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
{
struct kyrofb_info *par = info->par;
if (!var->pixclock)
return -EINVAL;
if (var->bits_per_pixel != 16 && var->bits_per_pixel != 32) {
printk(KERN_WARNING "kyrofb: depth not supported: %u\n", var->bits_per_pixel);
return -EINVAL;
}
switch (var->bits_per_pixel) {
case 16:
var->red.offset = 11;
var->red.length = 5;
var->green.offset = 5;
var->green.length = 6;
var->blue.length = 5;
break;
case 32:
var->transp.offset = 24;
var->red.offset = 16;
var->green.offset = 8;
var->blue.offset = 0;
var->red.length = 8;
var->green.length = 8;
var->blue.length = 8;
var->transp.length = 8;
break;
}
/* Height/Width of picture in mm */
var->height = var->width = -1;
/* Timing information. All values are in picoseconds */
/* par->PIXCLK is in 100Hz units. Convert to picoseconds -
* ensuring we do not exceed 32 bit precision
*/
/*
* XXX: Enabling this really screws over the pixclock value when we
* read it back with fbset. As such, leaving this commented out appears
* to do the right thing (at least for now) .. bearing in mind that we
* have infact already done the KHZ2PICOS conversion in both the modedb
* and kyro_var. -- PFM.
*/
// var->pixclock = 1000000000 / (par->PIXCLK / 10);
/* the header file claims we should use picoseconds
* - nobody else does though, the all use pixels and lines
* of h and v sizes. Both options here.
*/
/*
* If we're being called by __fb_try_mode(), then we don't want to
* override any of the var settings that we've already parsed
* from our modedb. -- PFM.
*/
if ((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_TEST)
return 0;
var->left_margin = par->HBP;
var->hsync_len = par->HST;
var->right_margin = par->HFP;
var->upper_margin = par->VBP;
var->vsync_len = par->VST;
var->lower_margin = par->VFP;
if (par->HSP == 1)
var->sync |= FB_SYNC_HOR_HIGH_ACT;
if (par->VSP == 1)
var->sync |= FB_SYNC_VERT_HIGH_ACT;
return 0;
}
static int kyrofb_set_par(struct fb_info *info)
{
struct kyrofb_info *par = info->par;
unsigned long lineclock;
unsigned long frameclock;
/* Actual resolution */
par->XRES = info->var.xres;
par->YRES = info->var.yres;
/* pixel depth */
par->PIXDEPTH = info->var.bits_per_pixel;
/* Refresh rate */
/* time for a line in ns */
lineclock = (info->var.pixclock * (info->var.xres +
info->var.right_margin +
info->var.hsync_len +
info->var.left_margin)) / 1000;
if (!lineclock)
return -EINVAL;
/* time for a frame in ns (precision in 32bpp) */
frameclock = lineclock * (info->var.yres +
info->var.lower_margin +
info->var.vsync_len +
info->var.upper_margin);
/* Calculate refresh rate and horrizontal clocks */
par->VFREQ = (1000000000 + (frameclock / 2)) / frameclock;
par->HCLK = (1000000000 + (lineclock / 2)) / lineclock;
par->PIXCLK = ((1000000000 + (info->var.pixclock / 2))
/ info->var.pixclock) * 10;
/* calculate horizontal timings */
par->HFP = info->var.right_margin;
par->HST = info->var.hsync_len;
par->HBP = info->var.left_margin;
par->HTot = par->XRES + par->HBP + par->HST + par->HFP;
/* calculate vertical timings */
par->VFP = info->var.lower_margin;
par->VST = info->var.vsync_len;
par->VBP = info->var.upper_margin;
par->VTot = par->YRES + par->VBP + par->VST + par->VFP;
par->HSP = (info->var.sync & FB_SYNC_HOR_HIGH_ACT) ? 1 : 0;
par->VSP = (info->var.sync & FB_SYNC_VERT_HIGH_ACT) ? 1 : 0;
kyro_dev_video_mode_set(info);
/* length of a line in bytes */
info->fix.line_length = get_line_length(par->XRES, par->PIXDEPTH);
info->fix.visual = FB_VISUAL_TRUECOLOR;
return 0;
}
static int kyrofb_setcolreg(u_int regno, u_int red, u_int green,
u_int blue, u_int transp, struct fb_info *info)
{
struct kyrofb_info *par = info->par;
if (regno > 255)
return 1; /* Invalid register */
if (regno < 16) {
switch (info->var.bits_per_pixel) {
case 16:
par->palette[regno] =
(red & 0xf800) |
((green & 0xfc00) >> 5) |
((blue & 0xf800) >> 11);
break;
case 32:
red >>= 8; green >>= 8; blue >>= 8; transp >>= 8;
par->palette[regno] =
(transp << 24) | (red << 16) | (green << 8) | blue;
break;
}
}
return 0;
}
#ifndef MODULE
static int __init kyrofb_setup(char *options)
{
char *this_opt;
if (!options || !*options)
return 0;
while ((this_opt = strsep(&options, ","))) {
if (!*this_opt)
continue;
if (strcmp(this_opt, "nopan") == 0) {
nopan = 1;
} else if (strcmp(this_opt, "nowrap") == 0) {
nowrap = 1;
} else if (strcmp(this_opt, "nomtrr") == 0) {
nomtrr = 1;
} else {
mode_option = this_opt;
}
}
return 0;
}
#endif
static int kyrofb_ioctl(struct fb_info *info,
unsigned int cmd, unsigned long arg)
{
overlay_create ol_create;
overlay_viewport_set ol_viewport_set;
void __user *argp = (void __user *)arg;
switch (cmd) {
case KYRO_IOCTL_OVERLAY_CREATE:
if (copy_from_user(&ol_create, argp, sizeof(overlay_create)))
return -EFAULT;
if (kyro_dev_overlay_create(ol_create.ulWidth,
ol_create.ulHeight, 0) < 0) {
printk(KERN_ERR "Kyro FB: failed to create overlay surface.\n");
return -EINVAL;
}
break;
case KYRO_IOCTL_OVERLAY_VIEWPORT_SET:
if (copy_from_user(&ol_viewport_set, argp,
sizeof(overlay_viewport_set)))
return -EFAULT;
if (kyro_dev_overlay_viewport_set(ol_viewport_set.xOrgin,
ol_viewport_set.yOrgin,
ol_viewport_set.xSize,
ol_viewport_set.ySize) != 0)
{
printk(KERN_ERR "Kyro FB: failed to create overlay viewport.\n");
return -EINVAL;
}
break;
case KYRO_IOCTL_SET_VIDEO_MODE:
{
printk(KERN_ERR "Kyro FB: KYRO_IOCTL_SET_VIDEO_MODE is"
"obsolete, use the appropriate fb_ioctl()"
"command instead.\n");
return -EINVAL;
}
case KYRO_IOCTL_UVSTRIDE:
if (copy_to_user(argp, &deviceInfo.ulOverlayUVStride, sizeof(deviceInfo.ulOverlayUVStride)))
return -EFAULT;
break;
case KYRO_IOCTL_STRIDE:
if (copy_to_user(argp, &deviceInfo.ulOverlayStride, sizeof(deviceInfo.ulOverlayStride)))
return -EFAULT;
break;
case KYRO_IOCTL_OVERLAY_OFFSET:
if (copy_to_user(argp, &deviceInfo.ulOverlayOffset, sizeof(deviceInfo.ulOverlayOffset)))
return -EFAULT;
break;
}
return 0;
}
static const struct pci_device_id kyrofb_pci_tbl[] = {
{ PCI_VENDOR_ID_ST, PCI_DEVICE_ID_STG4000,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ 0, }
};
MODULE_DEVICE_TABLE(pci, kyrofb_pci_tbl);
static struct pci_driver kyrofb_pci_driver = {
.name = "kyrofb",
.id_table = kyrofb_pci_tbl,
.probe = kyrofb_probe,
.remove = kyrofb_remove,
};
static const struct fb_ops kyrofb_ops = {
.owner = THIS_MODULE,
.fb_check_var = kyrofb_check_var,
.fb_set_par = kyrofb_set_par,
.fb_setcolreg = kyrofb_setcolreg,
.fb_ioctl = kyrofb_ioctl,
.fb_fillrect = cfb_fillrect,
.fb_copyarea = cfb_copyarea,
.fb_imageblit = cfb_imageblit,
};
static int kyrofb_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
struct fb_info *info;
struct kyrofb_info *currentpar;
unsigned long size;
int err;
err = aperture_remove_conflicting_pci_devices(pdev, "kyrofb");
if (err)
return err;
if ((err = pci_enable_device(pdev))) {
printk(KERN_WARNING "kyrofb: Can't enable pdev: %d\n", err);
return err;
}
info = framebuffer_alloc(sizeof(struct kyrofb_info), &pdev->dev);
if (!info)
return -ENOMEM;
currentpar = info->par;
kyro_fix.smem_start = pci_resource_start(pdev, 0);
kyro_fix.smem_len = pci_resource_len(pdev, 0);
kyro_fix.mmio_start = pci_resource_start(pdev, 1);
kyro_fix.mmio_len = pci_resource_len(pdev, 1);
currentpar->regbase = deviceInfo.pSTGReg =
ioremap(kyro_fix.mmio_start, kyro_fix.mmio_len);
if (!currentpar->regbase)
goto out_free_fb;
info->screen_base = pci_ioremap_wc_bar(pdev, 0);
if (!info->screen_base)
goto out_unmap_regs;
if (!nomtrr)
currentpar->wc_cookie = arch_phys_wc_add(kyro_fix.smem_start,
kyro_fix.smem_len);
kyro_fix.ypanstep = nopan ? 0 : 1;
kyro_fix.ywrapstep = nowrap ? 0 : 1;
info->fbops = &kyrofb_ops;
info->fix = kyro_fix;
info->pseudo_palette = currentpar->palette;
info->flags = FBINFO_DEFAULT;
SetCoreClockPLL(deviceInfo.pSTGReg, pdev);
deviceInfo.ulNextFreeVidMem = 0;
deviceInfo.ulOverlayOffset = 0;
/* This should give a reasonable default video mode */
if (!fb_find_mode(&info->var, info, mode_option, kyro_modedb,
NUM_TOTAL_MODES, &kyro_modedb[VMODE_1024_768_75], 32))
info->var = kyro_var;
fb_alloc_cmap(&info->cmap, 256, 0);
kyrofb_set_par(info);
kyrofb_check_var(&info->var, info);
size = get_line_length(info->var.xres_virtual,
info->var.bits_per_pixel);
size *= info->var.yres_virtual;
fb_memset(info->screen_base, 0, size);
if (register_framebuffer(info) < 0)
goto out_unmap;
fb_info(info, "%s frame buffer device, at %dx%d@%d using %ldk/%ldk of VRAM\n",
info->fix.id,
info->var.xres, info->var.yres, info->var.bits_per_pixel,
size >> 10, (unsigned long)info->fix.smem_len >> 10);
pci_set_drvdata(pdev, info);
return 0;
out_unmap:
iounmap(info->screen_base);
out_unmap_regs:
iounmap(currentpar->regbase);
out_free_fb:
framebuffer_release(info);
return -EINVAL;
}
static void kyrofb_remove(struct pci_dev *pdev)
{
struct fb_info *info = pci_get_drvdata(pdev);
struct kyrofb_info *par = info->par;
/* Reset the board */
StopVTG(deviceInfo.pSTGReg);
DisableRamdacOutput(deviceInfo.pSTGReg);
/* Sync up the PLL */
SetCoreClockPLL(deviceInfo.pSTGReg, pdev);
deviceInfo.ulNextFreeVidMem = 0;
deviceInfo.ulOverlayOffset = 0;
iounmap(info->screen_base);
iounmap(par->regbase);
arch_phys_wc_del(par->wc_cookie);
unregister_framebuffer(info);
framebuffer_release(info);
}
static int __init kyrofb_init(void)
{
#ifndef MODULE
char *option = NULL;
if (fb_get_options("kyrofb", &option))
return -ENODEV;
kyrofb_setup(option);
#endif
return pci_register_driver(&kyrofb_pci_driver);
}
static void __exit kyrofb_exit(void)
{
pci_unregister_driver(&kyrofb_pci_driver);
}
module_init(kyrofb_init);
#ifdef MODULE
module_exit(kyrofb_exit);
#endif
MODULE_AUTHOR("STMicroelectronics; Paul Mundt <lethal@linux-sh.org>");
MODULE_LICENSE("GPL");