drivers/mmc/host/toshsd.c

File Facts

System

Linux kernel

Corpus path

drivers/mmc/host/toshsd.c

Extension

.c

Size

17656 bytes

Lines

704

Domain

Driver Families

Bucket

drivers/mmc

Inferred role

Driver Families: operation-table or driver-model contract

Status

pattern 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.
• Defines an operation table; this is where Linux turns generic core objects into subsystem-specific behavior.
• 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/delay.h
• linux/device.h
• linux/module.h
• linux/pci.h
• linux/scatterlist.h
• linux/interrupt.h
• linux/io.h
• linux/pm.h
• linux/pm_runtime.h
• linux/mmc/host.h
• linux/mmc/mmc.h
• toshsd.h

Detected Declarations

• function toshsd_init
• function __toshsd_set_ios
• function toshsd_set_led
• function toshsd_finish_request
• function toshsd_thread_irq
• function toshsd_cmd_irq
• function toshsd_data_end_irq
• function toshsd_irq
• function toshsd_start_cmd
• function toshsd_start_data
• function toshsd_request
• function toshsd_set_ios
• function toshsd_get_ro
• function toshsd_get_cd
• function toshsd_powerdown
• function toshsd_pm_suspend
• function toshsd_pm_resume
• function toshsd_probe
• function toshsd_remove

Annotated Snippet

static struct pci_driver toshsd_driver = {
	.name = DRIVER_NAME,
	.id_table = pci_ids,
	.probe = toshsd_probe,
	.remove = toshsd_remove,
	.driver.pm = pm_sleep_ptr(&toshsd_pm_ops),
};

module_pci_driver(toshsd_driver);

MODULE_AUTHOR("Ondrej Zary, Richard Betts");
MODULE_DESCRIPTION("Toshiba PCI Secure Digital Host Controller Interface driver");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/delay.h`, `linux/device.h`, `linux/module.h`, `linux/pci.h`, `linux/scatterlist.h`, `linux/interrupt.h`, `linux/io.h`, `linux/pm.h`.
• Detected declarations: `function toshsd_init`, `function __toshsd_set_ios`, `function toshsd_set_led`, `function toshsd_finish_request`, `function toshsd_thread_irq`, `function toshsd_cmd_irq`, `function toshsd_data_end_irq`, `function toshsd_irq`, `function toshsd_start_cmd`, `function toshsd_start_data`.
• Atlas domain: Driver Families / drivers/mmc.
• Implementation status: pattern 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.