mirror of
https://github.com/mpv-player/mpv
synced 2024-12-22 14:52:43 +00:00
8188f8359c
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@3126 b3059339-0415-0410-9bf9-f77b7e298cf2
652 lines
14 KiB
C
652 lines
14 KiB
C
/*
|
|
*
|
|
* sis_vid.c
|
|
*
|
|
* Copyright (C) 2000 Aaron Holtzman
|
|
*
|
|
* This software has been released under the terms of the GNU Public
|
|
* license. See http://www.gnu.org/copyleft/gpl.html for details.
|
|
*/
|
|
|
|
// video4linux interface disabled by A'rpi/ESP-team
|
|
|
|
|
|
//It's entirely possible this major conflicts with something else
|
|
/* mknod /dev/mga_vid c 178 0 */
|
|
|
|
#include <linux/config.h>
|
|
#include <linux/version.h>
|
|
#include <linux/module.h>
|
|
#include <linux/types.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/sched.h>
|
|
#include <linux/mm.h>
|
|
#include <linux/string.h>
|
|
#include <linux/errno.h>
|
|
|
|
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,10)
|
|
#include <linux/malloc.h>
|
|
#else
|
|
#include <linux/slab.h>
|
|
#endif
|
|
|
|
#include <linux/pci.h>
|
|
#include <linux/init.h>
|
|
//#include <linux/videodev.h>
|
|
|
|
#include "sis_vid.h"
|
|
|
|
#ifdef CONFIG_MTRR
|
|
#include <asm/mtrr.h>
|
|
#endif
|
|
|
|
#include <asm/uaccess.h>
|
|
#include <asm/system.h>
|
|
#include <asm/io.h>
|
|
|
|
#define TRUE 1
|
|
#define FALSE 0
|
|
|
|
#define MGA_VID_MAJOR 178
|
|
|
|
|
|
#ifndef PCI_DEVICE_ID_SI_6323
|
|
#define PCI_DEVICE_ID_SI_6323 0x6326
|
|
#endif
|
|
|
|
|
|
MODULE_AUTHOR("Aaron Holtzman <aholtzma@engr.uvic.ca>");
|
|
|
|
|
|
typedef struct bes_registers_s
|
|
{
|
|
//base address of yuv framebuffer
|
|
uint32_t yuv_base;
|
|
uint32_t u_base;
|
|
uint32_t v_base;
|
|
uint32_t fb_end;;
|
|
|
|
//frame buffer pitch
|
|
uint32_t pitch;
|
|
|
|
//window boundaries
|
|
uint32_t left;
|
|
uint32_t right;
|
|
uint32_t top;
|
|
uint32_t bottom;
|
|
|
|
//control registers
|
|
uint32_t misc_0;
|
|
uint32_t misc_1;
|
|
uint32_t misc_3;
|
|
uint32_t misc_4;
|
|
|
|
//key overlay mode
|
|
uint32_t key_mode;
|
|
|
|
} bes_registers_t;
|
|
|
|
static bes_registers_t regs;
|
|
static uint32_t mga_vid_in_use = 0;
|
|
static uint32_t vid_src_ready = 0;
|
|
static uint32_t vid_overlay_on = 0;
|
|
|
|
static uint8_t *mga_mmio_base = 0;
|
|
static uint32_t mga_mem_base = 0;
|
|
static uint32_t mga_src_base = 0;
|
|
|
|
static uint32_t mga_ram_size = 0;
|
|
|
|
static struct pci_dev *pci_dev;
|
|
|
|
//static struct video_window mga_win;
|
|
static mga_vid_config_t mga_config;
|
|
|
|
|
|
|
|
// Backend Scaler registers
|
|
|
|
#define MISC_0 0x98
|
|
#define MISC_1 0x99
|
|
#define MISC_3 0x9d
|
|
#define MISC_4 0xb6
|
|
|
|
|
|
|
|
|
|
static void mga_vid_frame_sel(int frame)
|
|
{
|
|
//we don't need the vcount protection as we're only hitting
|
|
//one register (and it doesn't seem to be double buffered)
|
|
//regs.besctl = (regs.besctl & ~0x07000000) + (frame << 25);
|
|
//writel( regs.besctl, mga_mmio_base + BESCTL );
|
|
}
|
|
|
|
|
|
#define WRITE_REG(x,y,z) {outb((y),(x));outb((z),(x+1));}
|
|
#define READ_REG(x,y) (outb((y),(x)),inb(x+1))
|
|
#define VIDEO_ACCEL 0x3d4
|
|
|
|
static void mga_vid_write_regs(void)
|
|
{
|
|
uint32_t foo;
|
|
|
|
//unlock the video accel registers
|
|
WRITE_REG(VIDEO_ACCEL,0x80,0x86);
|
|
foo = READ_REG(VIDEO_ACCEL,0x80);
|
|
|
|
if(foo != 0xa1)
|
|
return; //something bad happened
|
|
|
|
//setup the horizontal window bounds
|
|
WRITE_REG(VIDEO_ACCEL,0x81,regs.left & 0xff);
|
|
WRITE_REG(VIDEO_ACCEL,0x82,regs.right & 0xff);
|
|
WRITE_REG(VIDEO_ACCEL,0x83,(regs.left >> 8) | ((regs.right>>4) & 0x70));
|
|
|
|
//setup the vertical window bounds
|
|
WRITE_REG(VIDEO_ACCEL,0x84,regs.top & 0xff);
|
|
WRITE_REG(VIDEO_ACCEL,0x85,regs.bottom & 0xff);
|
|
WRITE_REG(VIDEO_ACCEL,0x86,(regs.top >> 8) | ((regs.bottom>>4) & 0x70));
|
|
|
|
//setup the framebuffer base addresses
|
|
WRITE_REG(VIDEO_ACCEL,0x8a,regs.yuv_base & 0xff);
|
|
WRITE_REG(VIDEO_ACCEL,0x8b,(regs.yuv_base >> 8) & 0xff);
|
|
WRITE_REG(VIDEO_ACCEL,0x89,(regs.yuv_base >> 12) & 0xf0);
|
|
|
|
WRITE_REG(VIDEO_ACCEL,0xb7,regs.u_base & 0xff);
|
|
WRITE_REG(VIDEO_ACCEL,0xb8,(regs.u_base >> 8) & 0xff);
|
|
|
|
WRITE_REG(VIDEO_ACCEL,0xba,regs.v_base & 0xff);
|
|
WRITE_REG(VIDEO_ACCEL,0xbb,(regs.v_base >> 8) & 0xff);
|
|
WRITE_REG(VIDEO_ACCEL,0xb9,((regs.v_base >> 12) & 0xf0) + ((regs.u_base >> 16) & 0xf));
|
|
|
|
WRITE_REG(VIDEO_ACCEL,0x8d,regs.fb_end);
|
|
|
|
//setup framebuffer pitch
|
|
WRITE_REG(VIDEO_ACCEL,0x8c,regs.pitch & 0xff);
|
|
WRITE_REG(VIDEO_ACCEL,0x8e,(regs.pitch >> 8) & 0x0f);
|
|
WRITE_REG(VIDEO_ACCEL,0xbc,(regs.pitch) & 0xff);
|
|
WRITE_REG(VIDEO_ACCEL,0xbd,((regs.pitch) >> 8) & 0x0f);
|
|
|
|
|
|
//write key overlay register
|
|
WRITE_REG(VIDEO_ACCEL,0xa9,regs.key_mode);
|
|
|
|
WRITE_REG(VIDEO_ACCEL,0x93,0x40);
|
|
WRITE_REG(VIDEO_ACCEL,0x94,1);
|
|
WRITE_REG(VIDEO_ACCEL,0x9e,0);
|
|
WRITE_REG(VIDEO_ACCEL,0x9f,0);
|
|
|
|
//write config registers
|
|
WRITE_REG(VIDEO_ACCEL,MISC_0,regs.misc_0);
|
|
WRITE_REG(VIDEO_ACCEL,MISC_1,regs.misc_1);
|
|
WRITE_REG(VIDEO_ACCEL,MISC_3,regs.misc_3);
|
|
WRITE_REG(VIDEO_ACCEL,MISC_4,regs.misc_4);
|
|
|
|
//setup the video line buffer
|
|
WRITE_REG(VIDEO_ACCEL,0xa0,(regs.right - regs.left)/ 8);
|
|
|
|
}
|
|
|
|
static int mga_vid_set_config(mga_vid_config_t *config)
|
|
{
|
|
uint32_t x, y, frame_size;
|
|
|
|
x = config->x_org;
|
|
y = config->y_org;
|
|
|
|
regs.left = x;
|
|
regs.right= config->src_width + x;
|
|
regs.top = y;
|
|
regs.bottom = config->src_height + y;
|
|
|
|
printk(KERN_DEBUG "mga_vid: Setting up a %dx%d+%d+%d video window (src %dx%d)\n",
|
|
config->dest_width, config->dest_height, config->x_org, config->y_org,
|
|
config->src_width, config->src_height);
|
|
|
|
|
|
regs.pitch = ((config->src_width + 31) & ~31) / 4 ;
|
|
|
|
//frame size in pixels
|
|
frame_size = regs.pitch * config->src_height * 4;
|
|
|
|
regs.yuv_base = (mga_src_base) >> 2;
|
|
regs.u_base = (mga_src_base + frame_size) >> 2;
|
|
regs.v_base = (mga_src_base + frame_size/4) >> 2;
|
|
regs.fb_end = (mga_src_base + (3*frame_size)/2) >> 14;
|
|
|
|
//disable video capture, enable video display, enable graphics display,
|
|
//select yuv format, odd parity
|
|
regs.misc_0 = (1 << 1) + (1<<6) + (1<<4);
|
|
|
|
//disable dithering, no filtering, no interrupts
|
|
regs.misc_1 = 0;
|
|
|
|
//select 2's complement format YUV for playback
|
|
regs.misc_3 = (1<<1);
|
|
|
|
//select 4:2:0 video format, + yuv4:2:2 cpu writes
|
|
regs.misc_4 = (1<<2);
|
|
|
|
//disable keying
|
|
regs.key_mode = 0xf;
|
|
|
|
mga_vid_write_regs();
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int mga_vid_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
|
|
{
|
|
int frame;
|
|
|
|
switch(cmd)
|
|
{
|
|
case MGA_VID_CONFIG:
|
|
//FIXME remove
|
|
printk(KERN_DEBUG "mga_mmio_base = %p\n",mga_mmio_base);
|
|
printk(KERN_DEBUG "mga_mem_base = %08x\n",mga_mem_base);
|
|
//FIXME remove
|
|
|
|
printk(KERN_DEBUG "mga_vid: Received configuration\n");
|
|
|
|
if(copy_from_user(&mga_config,(mga_vid_config_t*) arg,sizeof(mga_vid_config_t)))
|
|
{
|
|
printk(KERN_ERR "mga_vid: failed copy from userspace\n");
|
|
return(-EFAULT);
|
|
}
|
|
|
|
mga_config.ram_size = mga_ram_size;
|
|
//XXX make it look like a g400
|
|
mga_config.card_type = MGA_G400;;
|
|
|
|
if (copy_to_user((mga_vid_config_t *) arg, &mga_config, sizeof(mga_vid_config_t)))
|
|
{
|
|
printk(KERN_ERR "mga_vid: failed copy to userspace\n");
|
|
return(-EFAULT);
|
|
}
|
|
return mga_vid_set_config(&mga_config);
|
|
break;
|
|
|
|
case MGA_VID_ON:
|
|
printk(KERN_DEBUG "mga_vid: Video ON\n");
|
|
vid_src_ready = 1;
|
|
if(vid_overlay_on)
|
|
{
|
|
//regs.besctl |= 1;
|
|
mga_vid_write_regs();
|
|
}
|
|
break;
|
|
|
|
case MGA_VID_OFF:
|
|
printk(KERN_DEBUG "mga_vid: Video OFF\n");
|
|
vid_src_ready = 0;
|
|
//regs.besctl &= ~1;
|
|
mga_vid_write_regs();
|
|
break;
|
|
|
|
case MGA_VID_FSEL:
|
|
if(copy_from_user(&frame,(int *) arg,sizeof(int)))
|
|
{
|
|
printk(KERN_ERR "mga_vid: FSEL failed copy from userspace\n");
|
|
return(-EFAULT);
|
|
}
|
|
|
|
mga_vid_frame_sel(frame);
|
|
break;
|
|
|
|
default:
|
|
printk(KERN_ERR "mga_vid: Invalid ioctl\n");
|
|
return (-EINVAL);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int mga_vid_find_card(void)
|
|
{
|
|
struct pci_dev *dev = NULL;
|
|
|
|
if((dev = pci_find_device(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_6323, NULL)))
|
|
{
|
|
printk(KERN_DEBUG "sis_vid: Found SiS 6326\n");
|
|
}
|
|
else
|
|
{
|
|
printk(KERN_ERR "sis_vid: No supported cards found\n");
|
|
return FALSE;
|
|
}
|
|
|
|
pci_dev = dev;
|
|
|
|
#if LINUX_VERSION_CODE >= 0x020300
|
|
mga_mmio_base = ioremap_nocache(dev->resource[1].start,0x10000);
|
|
mga_mem_base = dev->resource[0].start;
|
|
#else
|
|
mga_mmio_base = ioremap_nocache(dev->base_address[1] & PCI_BASE_ADDRESS_MEM_MASK,0x10000);
|
|
mga_mem_base = dev->base_address[0] & PCI_BASE_ADDRESS_MEM_MASK;
|
|
#endif
|
|
printk(KERN_DEBUG "mga_vid: MMIO at 0x%p\n", mga_mmio_base);
|
|
printk(KERN_DEBUG "mga_vid: Frame Buffer at 0x%08x\n", mga_mem_base);
|
|
|
|
//FIXME set ram size properly
|
|
mga_ram_size = 4;
|
|
mga_src_base = (mga_ram_size - 1) * 0x100000;
|
|
|
|
//FIXME remove
|
|
if(1)
|
|
{
|
|
mga_vid_config_t config ={0,0,256,256,256,256,10,10,0,0,0,0};
|
|
|
|
mga_vid_set_config(&config);
|
|
mga_vid_write_regs();
|
|
//regs.misc_0 ^= 2;
|
|
//mga_vid_write_regs();
|
|
}
|
|
//FIXME remove
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
static ssize_t mga_vid_read(struct file *file, char *buf, size_t count, loff_t *ppos)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
static ssize_t mga_vid_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
static int mga_vid_mmap(struct file *file, struct vm_area_struct *vma)
|
|
{
|
|
|
|
printk(KERN_DEBUG "mga_vid: mapping video memory into userspace\n");
|
|
if(remap_page_range(vma->vm_start, mga_mem_base + mga_src_base,
|
|
vma->vm_end - vma->vm_start, vma->vm_page_prot))
|
|
{
|
|
printk(KERN_ERR "mga_vid: error mapping video memory\n");
|
|
return(-EAGAIN);
|
|
}
|
|
|
|
return(0);
|
|
}
|
|
|
|
static int mga_vid_release(struct inode *inode, struct file *file)
|
|
{
|
|
//Close the window just in case
|
|
vid_src_ready = 0;
|
|
regs.misc_0 &= 0xed;
|
|
mga_vid_write_regs();
|
|
mga_vid_in_use = 0;
|
|
|
|
//FIXME put back in!
|
|
//MOD_DEC_USE_COUNT;
|
|
return 0;
|
|
}
|
|
|
|
static long long mga_vid_lseek(struct file *file, long long offset, int origin)
|
|
{
|
|
return -ESPIPE;
|
|
}
|
|
|
|
static int mga_vid_open(struct inode *inode, struct file *file)
|
|
{
|
|
int minor = MINOR(inode->i_rdev);
|
|
|
|
if(minor != 0)
|
|
return(-ENXIO);
|
|
|
|
if(mga_vid_in_use == 1)
|
|
return(-EBUSY);
|
|
|
|
mga_vid_in_use = 1;
|
|
//FIXME turn me back on!
|
|
//MOD_INC_USE_COUNT;
|
|
return(0);
|
|
}
|
|
|
|
#if LINUX_VERSION_CODE >= 0x020400
|
|
static struct file_operations mga_vid_fops =
|
|
{
|
|
llseek: mga_vid_lseek,
|
|
read: mga_vid_read,
|
|
write: mga_vid_write,
|
|
ioctl: mga_vid_ioctl,
|
|
mmap: mga_vid_mmap,
|
|
open: mga_vid_open,
|
|
release: mga_vid_release
|
|
};
|
|
#else
|
|
static struct file_operations mga_vid_fops =
|
|
{
|
|
mga_vid_lseek,
|
|
mga_vid_read,
|
|
mga_vid_write,
|
|
NULL,
|
|
NULL,
|
|
mga_vid_ioctl,
|
|
mga_vid_mmap,
|
|
mga_vid_open,
|
|
NULL,
|
|
mga_vid_release
|
|
};
|
|
#endif
|
|
|
|
#if 0
|
|
static long mga_v4l_read(struct video_device *v, char *buf, unsigned long count,
|
|
int noblock)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
static long mga_v4l_write(struct video_device *v, const char *buf, unsigned long count, int noblock)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
static int mga_v4l_open(struct video_device *dev, int mode)
|
|
{
|
|
MOD_INC_USE_COUNT;
|
|
return 0;
|
|
}
|
|
|
|
static void mga_v4l_close(struct video_device *dev)
|
|
{
|
|
//regs.besctl &= ~1;
|
|
mga_vid_write_regs();
|
|
vid_overlay_on = 0;
|
|
MOD_DEC_USE_COUNT;
|
|
return;
|
|
}
|
|
|
|
static int mga_v4l_init_done(struct video_device *dev)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int mga_v4l_ioctl(struct video_device *dev, unsigned int cmd, void *arg)
|
|
{
|
|
switch(cmd)
|
|
{
|
|
case VIDIOCGCAP:
|
|
{
|
|
struct video_capability b;
|
|
strcpy(b.name, "Matrox G200/400");
|
|
b.type = VID_TYPE_SCALES|VID_TYPE_OVERLAY|VID_TYPE_CHROMAKEY;
|
|
b.channels = 0;
|
|
b.audios = 0;
|
|
b.maxwidth = 1024; /* GUESS ?? */
|
|
b.maxheight = 768;
|
|
b.minwidth = 32;
|
|
b.minheight = 16; /* GUESS ?? */
|
|
if(copy_to_user(arg,&b,sizeof(b)))
|
|
return -EFAULT;
|
|
return 0;
|
|
}
|
|
case VIDIOCGPICT:
|
|
{
|
|
/*
|
|
* Default values.. if we can change this we
|
|
* can add the feature later
|
|
*/
|
|
struct video_picture vp;
|
|
vp.brightness = 0x8000;
|
|
vp.hue = 0x8000;
|
|
vp.colour = 0x8000;
|
|
vp.whiteness = 0x8000;
|
|
vp.depth = 8;
|
|
/* Format is a guess */
|
|
vp.palette = VIDEO_PALETTE_YUV420P;
|
|
if(copy_to_user(arg, &vp, sizeof(vp)))
|
|
return -EFAULT;
|
|
return 0;
|
|
}
|
|
case VIDIOCSPICT:
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
case VIDIOCSWIN:
|
|
{
|
|
struct video_window vw;
|
|
if(copy_from_user(&vw, arg, sizeof(vw)))
|
|
return -EFAULT;
|
|
if(vw.x <0 || vw.y <0 || vw.width < 32
|
|
|| vw.height < 16)
|
|
return -EINVAL;
|
|
memcpy(&mga_win, &vw, sizeof(mga_win));
|
|
|
|
mga_config.x_org = vw.x;
|
|
mga_config.y_org = vw.y;
|
|
mga_config.dest_width = vw.width;
|
|
mga_config.dest_height = vw.height;
|
|
|
|
/*
|
|
* May have to add
|
|
*
|
|
* #define VIDEO_WINDOW_CHROMAKEY 16
|
|
*
|
|
* to <linux/videodev.h>
|
|
*/
|
|
|
|
//add it here for now
|
|
#define VIDEO_WINDOW_CHROMAKEY 16
|
|
|
|
if (vw.flags & VIDEO_WINDOW_CHROMAKEY)
|
|
mga_config.colkey_on = 1;
|
|
else
|
|
mga_config.colkey_on = 0;
|
|
|
|
mga_config.colkey_red = (vw.chromakey >> 24) & 0xFF;
|
|
mga_config.colkey_green = (vw.chromakey >> 16) & 0xFF;
|
|
mga_config.colkey_blue = (vw.chromakey >> 8) & 0xFF;
|
|
mga_vid_set_config(&mga_config);
|
|
return 0;
|
|
|
|
}
|
|
case VIDIOCGWIN:
|
|
{
|
|
if(copy_to_user(arg, &mga_win, sizeof(mga_win)))
|
|
return -EFAULT;
|
|
return 0;
|
|
}
|
|
case VIDIOCCAPTURE:
|
|
{
|
|
int v;
|
|
if(copy_from_user(&v, arg, sizeof(v)))
|
|
return -EFAULT;
|
|
vid_overlay_on = v;
|
|
if(vid_overlay_on && vid_src_ready)
|
|
{
|
|
//regs.besctl |= 1;
|
|
mga_vid_write_regs();
|
|
}
|
|
else
|
|
{
|
|
//regs.besctl &= ~1;
|
|
mga_vid_write_regs();
|
|
}
|
|
return 0;
|
|
}
|
|
default:
|
|
return -ENOIOCTLCMD;
|
|
}
|
|
}
|
|
|
|
static struct video_device mga_v4l_dev =
|
|
{
|
|
"Matrox G200/G400",
|
|
VID_TYPE_CAPTURE,
|
|
VID_HARDWARE_BT848, /* This is a lie for now */
|
|
mga_v4l_open,
|
|
mga_v4l_close,
|
|
mga_v4l_read,
|
|
mga_v4l_write,
|
|
NULL,
|
|
mga_v4l_ioctl,
|
|
NULL,
|
|
mga_v4l_init_done,
|
|
NULL,
|
|
0,
|
|
0
|
|
};
|
|
|
|
#endif
|
|
|
|
/*
|
|
* Main Initialization Function
|
|
*/
|
|
|
|
|
|
static int mga_vid_initialize(void)
|
|
{
|
|
mga_vid_in_use = 0;
|
|
|
|
printk(KERN_DEBUG "SiS 6326 YUV Video interface v0.01 (c) Aaron Holtzman \n");
|
|
if(register_chrdev(MGA_VID_MAJOR, "mga_vid", &mga_vid_fops))
|
|
{
|
|
printk(KERN_ERR "sis_vid: unable to get major: %d\n", MGA_VID_MAJOR);
|
|
return -EIO;
|
|
}
|
|
|
|
if (!mga_vid_find_card())
|
|
{
|
|
printk(KERN_ERR "sis_vid: no supported devices found\n");
|
|
unregister_chrdev(MGA_VID_MAJOR, "mga_vid");
|
|
return -EINVAL;
|
|
}
|
|
|
|
#if 0
|
|
if (video_register_device(&mga_v4l_dev, VFL_TYPE_GRABBER)<0)
|
|
{
|
|
printk("sis_vid: unable to register.\n");
|
|
unregister_chrdev(MGA_VID_MAJOR, "mga_vid");
|
|
if(mga_mmio_base)
|
|
iounmap(mga_mmio_base);
|
|
mga_mmio_base = 0;
|
|
return -EINVAL;
|
|
}
|
|
#endif
|
|
|
|
return(0);
|
|
}
|
|
|
|
int init_module(void)
|
|
{
|
|
return mga_vid_initialize();
|
|
}
|
|
|
|
void cleanup_module(void)
|
|
{
|
|
// video_unregister_device(&mga_v4l_dev);
|
|
if(mga_mmio_base)
|
|
iounmap(mga_mmio_base);
|
|
|
|
//FIXME turn off BES
|
|
printk(KERN_DEBUG "mga_vid: Cleaning up module\n");
|
|
unregister_chrdev(MGA_VID_MAJOR, "mga_vid");
|
|
}
|
|
|