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.
- 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.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
linux/kernel.hlinux/signal.hlinux/sched.hlinux/interrupt.hasm/io.hmedia/dmxdev.hmedia/dvbdev.hmedia/dvb_demux.hmedia/dvb_frontend.hmedia/dvb_net.hmantis_common.hmantis_link.hmantis_hif.hmantis_reg.h
Detected Declarations
function Copyrightfunction mantis_evmgr_initfunction mantis_evmgr_exit
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
- Immediate include surface: `linux/kernel.h`, `linux/signal.h`, `linux/sched.h`, `linux/interrupt.h`, `asm/io.h`, `media/dmxdev.h`, `media/dvbdev.h`, `media/dvb_demux.h`.
- Detected declarations: `function Copyright`, `function mantis_evmgr_init`, `function mantis_evmgr_exit`.
- Atlas domain: Driver Families / drivers/media.
- Implementation status: source implementation candidate.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.