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IRQ handler disabled, vcount-based vsync

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git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@69 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
arpi_esp 2001-03-10 02:27:50 +00:00
parent 20d28591a1
commit fdf71354d0
1 changed files with 26 additions and 3 deletions
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29
drivers/mga_vid.c
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@ -4,6 +4,10 @@
// Set this value, if autodetection fails! (video ram size in megabytes)
//#define MGA_MEMORY_SIZE 32
//#define MGA_ALLOW_IRQ
#define MGA_VSYNC_POS 2
/*
*
* mga_vid.c
@ -233,6 +237,11 @@ static void mga_vid_frame_sel(int frame)
//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 );
// writel( regs.besglobctl + ((readl(mga_mmio_base + VCOUNT)+2)<<16),
writel( regs.besglobctl + (MGA_VSYNC_POS<<16),
mga_mmio_base + BESGLOBCTL);
}
}
@ -479,6 +488,8 @@ if(config->format==MGA_VID_FORMAT_YV12){
return 0;
}
#ifdef MGA_ALLOW_IRQ
static void enable_irq(){
long int cc;
@ -508,6 +519,8 @@ void mga_handle_irq(int irq, void *dev_id, struct pt_regs *pregs) {
long int cc;
// if ( ! mga_enabled_flag ) return;
// printk(KERN_DEBUG "vcount = %d\n",readl(mga_mmio_base + VCOUNT));
//printk("mga_interrupt #%d\n", irq);
if ( irq != -1 ) {
@ -565,7 +578,7 @@ void mga_handle_irq(int irq, void *dev_id, struct pt_regs *pregs) {
}
#endif
static int mga_vid_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
{
@ -575,7 +588,7 @@ static int mga_vid_ioctl(struct inode *inode, struct file *file, unsigned int cm
{
case MGA_VID_CONFIG:
//FIXME remove
printk(KERN_DEBUG "vcount = %d\n",readl(mga_mmio_base + VCOUNT));
// printk(KERN_DEBUG "vcount = %d\n",readl(mga_mmio_base + VCOUNT));
printk(KERN_DEBUG "mga_mmio_base = %p\n",mga_mmio_base);
printk(KERN_DEBUG "mga_mem_base = %08lx\n",mga_mem_base);
//FIXME remove
@ -633,14 +646,18 @@ static int mga_vid_ioctl(struct inode *inode, struct file *file, unsigned int cm
regs.besctl |= 1;
mga_vid_write_regs();
}
#ifdef MGA_ALLOW_IRQ
if ( mga_irq != -1 ) enable_irq();
#endif
mga_next_frame=0;
break;
case MGA_VID_OFF:
printk(KERN_DEBUG "mga_vid: Video OFF\n");
vid_src_ready = 0;
#ifdef MGA_ALLOW_IRQ
if ( mga_irq != -1 ) disable_irq();
#endif
regs.besctl &= ~1;
mga_vid_write_regs();
break;
@ -747,6 +764,7 @@ static int mga_vid_find_card(void)
printk(KERN_INFO "mga_vid: detected RAMSIZE is %d MB\n", (unsigned int) mga_ram_size);
#endif
#ifdef MGA_ALLOW_IRQ
if ( mga_irq != -1 ) {
int tmp = request_irq(mga_irq, mga_handle_irq, SA_INTERRUPT | SA_SHIRQ, "Syncfb Time Base", &mga_irq);
if ( tmp ) {
@ -759,8 +777,11 @@ static int mga_vid_find_card(void)
printk(KERN_INFO "syncfb (mga): No valid irq was found\n");
mga_irq=-1;
}
#else
printk(KERN_INFO "syncfb (mga): IRQ disabled in mga_vid.c\n");
mga_irq=-1;
#endif
return TRUE;
}
@ -885,8 +906,10 @@ int init_module(void)
void cleanup_module(void)
{
#ifdef MGA_ALLOW_IRQ
if ( mga_irq != -1)
free_irq(mga_irq, &mga_irq);
#endif
if(mga_mmio_base)
iounmap(mga_mmio_base);