drivers/media/pci/mantis/mantis_evm.c

Source file repositories/reference/linux-study-clean/drivers/media/pci/mantis/mantis_evm.c

File Facts

System
Linux kernel
Corpus path
drivers/media/pci/mantis/mantis_evm.c
Extension
.c
Size
3179 bytes
Lines
106
Domain
Driver Families
Bucket
drivers/media
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

if (gpif_stat & MANTIS_CARD_PLUGIN) {
			dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): CAM Plugin", mantis->num);
			mmwrite(0xdada0000, MANTIS_CARD_RESET);
			mantis_event_cam_plugin(ca);
			dvb_ca_en50221_camchange_irq(&ca->en50221,
						     0,
						     DVB_CA_EN50221_CAMCHANGE_INSERTED);
		}
	} else {
		if (gpif_stat & MANTIS_CARD_PLUGOUT) {
			dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): CAM Unplug", mantis->num);
			mmwrite(0xdada0000, MANTIS_CARD_RESET);
			mantis_event_cam_unplug(ca);
			dvb_ca_en50221_camchange_irq(&ca->en50221,
						     0,
						     DVB_CA_EN50221_CAMCHANGE_REMOVED);
		}
	}

	if (mantis->gpif_status & MANTIS_GPIF_EXTIRQ)
		dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Ext IRQ", mantis->num);

	if (mantis->gpif_status & MANTIS_SBUF_WSTO)
		dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer Timeout", mantis->num);

	if (mantis->gpif_status & MANTIS_GPIF_OTHERR)
		dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Alignment Error", mantis->num);

	if (gpif_stat & MANTIS_SBUF_OVFLW)
		dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer Overflow", mantis->num);

	if (gpif_stat & MANTIS_GPIF_BRRDY)
		dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer Read Ready", mantis->num);

	if (gpif_stat & MANTIS_GPIF_INTSTAT)
		dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): GPIF IRQ", mantis->num);

	if (gpif_stat & MANTIS_SBUF_EMPTY)
		dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer Empty", mantis->num);

	if (gpif_stat & MANTIS_SBUF_OPDONE) {
		dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer operation complete", mantis->num);
		ca->sbuf_status = MANTIS_SBUF_DATA_AVAIL;
		ca->hif_event = MANTIS_SBUF_OPDONE;
		wake_up(&ca->hif_opdone_wq);
	}
}

int mantis_evmgr_init(struct mantis_ca *ca)
{
	struct mantis_pci *mantis = ca->ca_priv;

	dprintk(MANTIS_DEBUG, 1, "Initializing Mantis Host I/F Event manager");
	INIT_WORK(&ca->hif_evm_work, mantis_hifevm_work);
	mantis_pcmcia_init(ca);
	schedule_work(&ca->hif_evm_work);
	mantis_hif_init(ca);
	return 0;
}

void mantis_evmgr_exit(struct mantis_ca *ca)
{
	struct mantis_pci *mantis = ca->ca_priv;

	dprintk(MANTIS_DEBUG, 1, "Mantis Host I/F Event manager exiting");
	flush_work(&ca->hif_evm_work);
	mantis_hif_exit(ca);
	mantis_pcmcia_exit(ca);
}

Annotation

Implementation Notes