drivers/net/wireless/mediatek/mt76/mt7996/mmio.c

Source file repositories/reference/linux-study-clean/drivers/net/wireless/mediatek/mt76/mt7996/mmio.c

File Facts

System: Linux kernel
Corpus path: drivers/net/wireless/mediatek/mt76/mt7996/mmio.c
Extension: .c
Size: 28443 bytes
Lines: 893
Domain: Driver Families
Bucket: drivers/net
Inferred role: Driver Families: exported/initcall integration point
Status: integration 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.
Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
Touches IRQ or DMA behavior; this matters for the representative real-device path.
Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

linux/kernel.h
linux/module.h
linux/pci.h
linux/rtnetlink.h
mt7996.h
mac.h
mcu.h
../trace.h
../dma.h

Detected Declarations

function mt7996_reg_map_l1
function mt7996_reg_map_l2
function mt7996_reg_map_cbtop
function __mt7996_reg_addr
function __mt7996_reg_remap_addr
function mt7996_memcpy_fromio
function mt7996_rr
function mt7996_wr
function mt7996_rmw
function mt7996_mmio_wed_reset
function mt7996_mmio_wed_init
function mt7996_mmio_init
function mt7996_dual_hif_set_irq_mask
function mt7996_rx_poll_complete
function mt7996_irq_tasklet
function mt7996_irq_handler
function mt7996_init
function mt7996_exit
module init mt7996_init

Annotated Snippet

module_init(mt7996_init);
module_exit(mt7996_exit);
MODULE_DESCRIPTION("MediaTek MT7996 MMIO helpers");
MODULE_LICENSE("Dual BSD/GPL");

Annotation

Immediate include surface: `linux/kernel.h`, `linux/module.h`, `linux/pci.h`, `linux/rtnetlink.h`, `mt7996.h`, `mac.h`, `mcu.h`, `../trace.h`.
Detected declarations: `function mt7996_reg_map_l1`, `function mt7996_reg_map_l2`, `function mt7996_reg_map_cbtop`, `function __mt7996_reg_addr`, `function __mt7996_reg_remap_addr`, `function mt7996_memcpy_fromio`, `function mt7996_rr`, `function mt7996_wr`, `function mt7996_rmw`, `function mt7996_mmio_wed_reset`.
Atlas domain: Driver Families / drivers/net.
Implementation status: integration implementation candidate.
Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.
IRQ or DMA behavior appears here, which is relevant to the selected PCIe/NVMe device path.

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.