diff options
Diffstat (limited to 'drivers/media/video/saa7134/saa7134-core.c')
| -rw-r--r-- | drivers/media/video/saa7134/saa7134-core.c | 31 |
1 files changed, 28 insertions, 3 deletions
diff --git a/drivers/media/video/saa7134/saa7134-core.c b/drivers/media/video/saa7134/saa7134-core.c index 028904bd94a2..58e568d7d2ee 100644 --- a/drivers/media/video/saa7134/saa7134-core.c +++ b/drivers/media/video/saa7134/saa7134-core.c @@ -66,6 +66,11 @@ static unsigned int latency = UNSET; module_param(latency, int, 0444); MODULE_PARM_DESC(latency,"pci latency timer"); +int saa7134_no_overlay=-1; +module_param_named(no_overlay, saa7134_no_overlay, int, 0444); +MODULE_PARM_DESC(no_overlay,"allow override overlay default (0 disables, 1 enables)" + " [some VIA/SIS chipsets are known to have problem with overlay]"); + static unsigned int video_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET }; static unsigned int vbi_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET }; static unsigned int radio_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET }; @@ -251,8 +256,7 @@ void saa7134_pgtable_free(struct pci_dev *pci, struct saa7134_pgtable *pt) void saa7134_dma_free(struct saa7134_dev *dev,struct saa7134_buf *buf) { - if (in_interrupt()) - BUG(); + BUG_ON(in_interrupt()); videobuf_waiton(&buf->vb,0,0); videobuf_dma_pci_unmap(dev->pci, &buf->vb.dma); @@ -613,7 +617,7 @@ static int saa7134_hwinit1(struct saa7134_dev *dev) saa_writel(SAA7134_IRQ1, 0); saa_writel(SAA7134_IRQ2, 0); - init_MUTEX(&dev->lock); + mutex_init(&dev->lock); spin_lock_init(&dev->slock); saa7134_track_gpio(dev,"pre-init"); @@ -835,6 +839,22 @@ static int __devinit saa7134_initdev(struct pci_dev *pci_dev, latency = 0x0A; } #endif + if (pci_pci_problems & PCIPCI_FAIL) { + printk(KERN_INFO "%s: quirk: this driver and your " + "chipset may not work together" + " in overlay mode.\n",dev->name); + if (!saa7134_no_overlay) { + printk(KERN_INFO "%s: quirk: overlay " + "mode will be disabled.\n", + dev->name); + saa7134_no_overlay = 1; + } else { + printk(KERN_INFO "%s: quirk: overlay " + "mode will be forced. Use this" + " option at your own risk.\n", + dev->name); + } + } } if (UNSET != latency) { printk(KERN_INFO "%s: setting pci latency timer to %d\n", @@ -937,6 +957,11 @@ static int __devinit saa7134_initdev(struct pci_dev *pci_dev, v4l2_prio_init(&dev->prio); /* register v4l devices */ + if (saa7134_no_overlay <= 0) { + saa7134_video_template.type |= VID_TYPE_OVERLAY; + } else { + printk("bttv: Overlay support disabled.\n"); + } dev->video_dev = vdev_init(dev,&saa7134_video_template,"video"); err = video_register_device(dev->video_dev,VFL_TYPE_GRABBER, video_nr[dev->nr]); |