drivers/scsi/aha1542.c

File Facts

System

Linux kernel

Corpus path

drivers/scsi/aha1542.c

Extension

.c

Size

31033 bytes

Lines

1172

Domain

Driver Families

Bucket

drivers/scsi

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/module.h
• linux/interrupt.h
• linux/kernel.h
• linux/types.h
• linux/string.h
• linux/delay.h
• linux/init.h
• linux/spinlock.h
• linux/isa.h
• linux/pnp.h
• linux/slab.h
• linux/io.h
• asm/dma.h
• scsi/scsi_cmnd.h
• scsi/scsi_device.h
• scsi/scsi_host.h
• aha1542.h

Detected Declarations

• struct aha1542_hostdata
• struct aha1542_cmd
• function aha1542_intr_reset
• function wait_mask
• function aha1542_outb
• function aha1542_out
• function aha1542_in
• function makecode
• function aha1542_test_port
• function aha1542_free_cmd
• function rq_for_each_segment
• function aha1542_interrupt
• function aha1542_queuecommand
• function rq_for_each_segment
• function setup_mailboxes
• function aha1542_getconfig
• function aha1542_mbenable
• function aha1542_query
• function dma_speed_hw
• function aha1542_set_bus_times
• function aha1542_release
• function aha1542_dev_reset
• function aha1542_reset
• function aha1542_bus_reset
• function aha1542_host_reset
• function aha1542_biosparam
• function aha1542_init_cmd_priv
• function aha1542_exit_cmd_priv
• function aha1542_isa_match
• function aha1542_isa_remove
• function aha1542_pnp_probe
• function aha1542_pnp_remove
• function aha1542_init
• function aha1542_exit
• module init aha1542_init

Annotated Snippet

module_init(aha1542_init);
module_exit(aha1542_exit);

Annotation

• Immediate include surface: `linux/module.h`, `linux/interrupt.h`, `linux/kernel.h`, `linux/types.h`, `linux/string.h`, `linux/delay.h`, `linux/init.h`, `linux/spinlock.h`.
• Detected declarations: `struct aha1542_hostdata`, `struct aha1542_cmd`, `function aha1542_intr_reset`, `function wait_mask`, `function aha1542_outb`, `function aha1542_out`, `function aha1542_in`, `function makecode`, `function aha1542_test_port`, `function aha1542_free_cmd`.
• Atlas domain: Driver Families / drivers/scsi.
• 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.