drivers/net/wireless/broadcom/b43/main.c

File Facts

System

Linux kernel

Corpus path

drivers/net/wireless/broadcom/b43/main.c

Extension

.c

Size

156670 bytes

Lines

5876

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.
• 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/delay.h
• linux/init.h
• linux/module.h
• linux/if_arp.h
• linux/etherdevice.h
• linux/firmware.h
• linux/workqueue.h
• linux/skbuff.h
• linux/io.h
• linux/dma-mapping.h
• linux/slab.h
• linux/unaligned.h
• b43.h
• main.h
• debugfs.h
• phy_common.h
• phy_g.h
• phy_n.h
• dma.h
• pio.h
• sysfs.h
• xmit.h
• lo.h
• sdio.h
• linux/mmc/sdio_func.h

Detected Declarations

• function b43_ratelimit
• function b43info
• function b43err
• function b43warn
• function b43dbg
• function b43_ram_write
• function b43_shm_control_word
• function b43_shm_read32
• function b43_shm_read16
• function b43_shm_write32
• function b43_shm_write16
• function b43_hf_read
• function b43_hf_write
• function b43_fwcapa_read
• function b43_tsf_read
• function b43_time_lock
• function b43_time_unlock
• function b43_tsf_write_locked
• function b43_tsf_write
• function b43_macfilter_set
• function b43_write_mac_bssid_templates
• function b43_upload_card_macaddress
• function b43_set_slot_time
• function b43_short_slot_timing_enable
• function b43_short_slot_timing_disable
• function b43_dummy_transmission
• function key_write
• function keymac_write
• function usable
• function b43_op_update_tkip_key
• function do_key_write
• function b43_key_write
• function b43_key_clear
• function b43_clear_keys
• function b43_dump_keymemory
• function b43_power_saving_ctl_bits
• function b43_wireless_core_phy_pll_reset
• function b43_bcma_phy_reset
• function b43_bcma_wireless_core_reset
• function b43_ssb_wireless_core_reset
• function b43_wireless_core_reset
• function handle_irq_transmit_status
• function drain_txstatus_queue
• function b43_jssi_read
• function b43_jssi_write
• function b43_generate_noise_sample
• function b43_calculate_link_quality
• function handle_irq_noise

Annotated Snippet

module_init(b43_init)
module_exit(b43_exit)

Annotation

• Immediate include surface: `linux/delay.h`, `linux/init.h`, `linux/module.h`, `linux/if_arp.h`, `linux/etherdevice.h`, `linux/firmware.h`, `linux/workqueue.h`, `linux/skbuff.h`.
• Detected declarations: `function b43_ratelimit`, `function b43info`, `function b43err`, `function b43warn`, `function b43dbg`, `function b43_ram_write`, `function b43_shm_control_word`, `function b43_shm_read32`, `function b43_shm_read16`, `function b43_shm_write32`.
• 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.