drivers/net/wireless/ath/ath11k/pci.c

File Facts

System

Linux kernel

Corpus path

drivers/net/wireless/ath/ath11k/pci.c

Extension

.c

Size

35000 bytes

Lines

1331

Domain

Driver Families

Bucket

drivers/net

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.
• Touches user memory; correctness depends on fault-safe copying and privilege boundary handling.
• 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/module.h
• linux/msi.h
• linux/pci.h
• linux/of.h
• linux/time.h
• linux/vmalloc.h
• pci.h
• core.h
• hif.h
• mhi.h
• debug.h
• pcic.h
• qmi.h

Detected Declarations

• function ath11k_pci_bus_wake_up
• function ath11k_pci_bus_release
• function ath11k_pci_get_window_start
• function ath11k_pci_select_window
• function ath11k_pci_window_write32
• function ath11k_pci_window_read32
• function ath11k_pci_get_msi_irq
• function ath11k_pci_select_static_window
• function ath11k_pci_restore_window
• function ath11k_pci_soc_global_reset
• function ath11k_pci_clear_dbg_registers
• function ath11k_pci_set_link_reg
• function ath11k_pci_fix_l1ss
• function ath11k_pci_enable_ltssm
• function ath11k_pci_clear_all_intrs
• function ath11k_pci_set_wlaon_pwr_ctrl
• function ath11k_pci_force_wake
• function ath11k_pci_sw_reset
• function ath11k_pci_init_qmi_ce_config
• function ath11k_pci_msi_config
• function ath11k_pci_msi_enable
• function ath11k_pci_msi_disable
• function ath11k_pci_alloc_msi
• function ath11k_pci_free_msi
• function ath11k_pci_config_msi_data
• function ath11k_pci_claim
• function ath11k_pci_free_region
• function ath11k_pci_aspm_disable
• function ath11k_pci_aspm_restore
• function ath11k_pci_coredump_calculate_size
• function ath11k_pci_coredump_download
• function ath11k_pci_power_up
• function ath11k_pci_power_down
• function ath11k_pci_hif_suspend
• function ath11k_pci_hif_resume
• function ath11k_pci_hif_ce_irq_enable
• function ath11k_pci_hif_ce_irq_disable
• function ath11k_pci_start
• function ath11k_pci_read_hw_version
• function ath11k_pci_set_irq_affinity_hint
• function ath11k_pci_probe
• function ath11k_pci_remove
• function ath11k_pci_shutdown
• function ath11k_pci_pm_suspend
• function ath11k_pci_pm_resume
• function ath11k_pci_pm_suspend_late
• function ath11k_pci_pm_resume_early
• function ath11k_pci_init

Annotated Snippet

static struct pci_driver ath11k_pci_driver = {
	.name = "ath11k_pci",
	.id_table = ath11k_pci_id_table,
	.probe = ath11k_pci_probe,
	.remove = ath11k_pci_remove,
	.shutdown = ath11k_pci_shutdown,
#ifdef CONFIG_PM
	.driver.pm = &ath11k_pci_pm_ops,
#endif
};

static int ath11k_pci_init(void)
{
	int ret;

	ret = pci_register_driver(&ath11k_pci_driver);
	if (ret)
		pr_err("failed to register ath11k pci driver: %d\n",
		       ret);

	return ret;
}
module_init(ath11k_pci_init);

static void ath11k_pci_exit(void)
{
	pci_unregister_driver(&ath11k_pci_driver);
}

module_exit(ath11k_pci_exit);

MODULE_DESCRIPTION("Driver support for Qualcomm Technologies PCIe 802.11ax WLAN devices");
MODULE_LICENSE("Dual BSD/GPL");

/* firmware files */
MODULE_FIRMWARE(ATH11K_FW_DIR "/QCA6390/hw2.0/*");
MODULE_FIRMWARE(ATH11K_FW_DIR "/QCN9074/hw1.0/*");
MODULE_FIRMWARE(ATH11K_FW_DIR "/WCN6855/hw2.0/*");
MODULE_FIRMWARE(ATH11K_FW_DIR "/WCN6855/hw2.1/*");

Annotation

• Immediate include surface: `linux/module.h`, `linux/msi.h`, `linux/pci.h`, `linux/of.h`, `linux/time.h`, `linux/vmalloc.h`, `pci.h`, `core.h`.
• Detected declarations: `function ath11k_pci_bus_wake_up`, `function ath11k_pci_bus_release`, `function ath11k_pci_get_window_start`, `function ath11k_pci_select_window`, `function ath11k_pci_window_write32`, `function ath11k_pci_window_read32`, `function ath11k_pci_get_msi_irq`, `function ath11k_pci_select_static_window`, `function ath11k_pci_restore_window`, `function ath11k_pci_soc_global_reset`.
• Atlas domain: Driver Families / drivers/net.
• Implementation status: pattern implementation candidate.
• This snippet crosses the user/kernel memory boundary; validate fault handling and access checks before translating the pattern.
• 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.