drivers/net/wireless/st/cw1200/cw1200_sdio.c

File Facts

System

Linux kernel

Corpus path

drivers/net/wireless/st/cw1200/cw1200_sdio.c

Extension

.c

Size

9781 bytes

Lines

426

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.
• Touches IRQ or DMA behavior; this matters for the representative real-device path.
• Allocates kernel memory; connect allocation flags and lifetime to context constraints.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/module.h
• linux/interrupt.h
• linux/gpio/consumer.h
• linux/delay.h
• linux/mmc/host.h
• linux/mmc/sdio_func.h
• linux/mmc/card.h
• linux/mmc/sdio.h
• linux/mmc/sdio_ids.h
• net/mac80211.h
• cw1200.h
• hwbus.h
• linux/platform_data/net-cw1200.h
• hwio.h

Detected Declarations

• struct hwbus_priv
• function cw1200_sdio_set_platform_data
• function cw1200_sdio_memcpy_fromio
• function cw1200_sdio_memcpy_toio
• function cw1200_sdio_lock
• function cw1200_sdio_unlock
• function cw1200_sdio_irq_handler
• function cw1200_gpio_hardirq
• function cw1200_gpio_irq
• function cw1200_request_irq
• function cw1200_sdio_irq_subscribe
• function cw1200_sdio_irq_unsubscribe
• function cw1200_sdio_off
• function cw1200_sdio_on
• function cw1200_sdio_align_size
• function cw1200_sdio_pm
• function cw1200_sdio_probe
• function cw1200_sdio_disconnect
• function cw1200_sdio_suspend
• function cw1200_sdio_resume
• function cw1200_sdio_init
• function cw1200_sdio_exit
• module init cw1200_sdio_init

Annotated Snippet

module_init(cw1200_sdio_init);
module_exit(cw1200_sdio_exit);

Annotation

• Immediate include surface: `linux/module.h`, `linux/interrupt.h`, `linux/gpio/consumer.h`, `linux/delay.h`, `linux/mmc/host.h`, `linux/mmc/sdio_func.h`, `linux/mmc/card.h`, `linux/mmc/sdio.h`.
• Detected declarations: `struct hwbus_priv`, `function cw1200_sdio_set_platform_data`, `function cw1200_sdio_memcpy_fromio`, `function cw1200_sdio_memcpy_toio`, `function cw1200_sdio_lock`, `function cw1200_sdio_unlock`, `function cw1200_sdio_irq_handler`, `function cw1200_gpio_hardirq`, `function cw1200_gpio_irq`, `function cw1200_request_irq`.
• Atlas domain: Driver Families / drivers/net.
• Implementation status: integration implementation candidate.
• 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.