drivers/net/wireless/mediatek/mt76/mt7915/mmio.c

File Facts

System

Linux kernel

Corpus path

drivers/net/wireless/mediatek/mt76/mt7915/mmio.c

Extension

.c

Size

31538 bytes

Lines

1005

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/platform_device.h
• linux/rtnetlink.h
• linux/pci.h
• mt7915.h
• mac.h
• mcu.h
• ../trace.h
• ../dma.h

Detected Declarations

• function mt7915_reg_map_l1
• function mt7915_reg_map_l2
• function __mt7915_reg_addr
• function __mt7915_reg_remap_addr
• function mt7915_memcpy_fromio
• function mt7915_rr
• function mt7915_wr
• function mt7915_rmw
• function mt7915_mmio_wed_update_rx_stats
• function mt7915_mmio_wed_reset
• function mt7915_mmio_wed_init
• function mt7915_mmio_init
• function mt7915_dual_hif_set_irq_mask
• function mt7915_rx_poll_complete
• function mt7915_irq_tasklet
• function mt7915_irq_handler
• function mt7915_init
• function mt7915_exit
• module init mt7915_init

Annotated Snippet

module_init(mt7915_init);
module_exit(mt7915_exit);
MODULE_DESCRIPTION("MediaTek MT7915E MMIO helpers");
MODULE_LICENSE("Dual BSD/GPL");

Annotation

• Immediate include surface: `linux/kernel.h`, `linux/module.h`, `linux/platform_device.h`, `linux/rtnetlink.h`, `linux/pci.h`, `mt7915.h`, `mac.h`, `mcu.h`.
• Detected declarations: `function mt7915_reg_map_l1`, `function mt7915_reg_map_l2`, `function __mt7915_reg_addr`, `function __mt7915_reg_remap_addr`, `function mt7915_memcpy_fromio`, `function mt7915_rr`, `function mt7915_wr`, `function mt7915_rmw`, `function mt7915_mmio_wed_update_rx_stats`, `function mt7915_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.