drivers/bluetooth/btmrvl_sdio.c

File Facts

System

Linux kernel

Corpus path

drivers/bluetooth/btmrvl_sdio.c

Extension

.c

Size

41868 bytes

Lines

1782

Domain

Driver Families

Bucket

drivers/bluetooth

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/firmware.h
• linux/slab.h
• linux/suspend.h
• linux/mmc/sdio_ids.h
• linux/mmc/sdio_func.h
• linux/module.h
• linux/devcoredump.h
• net/bluetooth/bluetooth.h
• net/bluetooth/hci_core.h
• btmrvl_drv.h
• btmrvl_sdio.h

Detected Declarations

• function btmrvl_wake_irq_bt
• function btmrvl_sdio_probe_of
• function btmrvl_sdio_get_rx_unit
• function btmrvl_sdio_read_fw_status
• function btmrvl_sdio_read_rx_len
• function btmrvl_sdio_enable_host_int_mask
• function btmrvl_sdio_disable_host_int_mask
• function btmrvl_sdio_poll_card_status
• function btmrvl_sdio_verify_fw_download
• function btmrvl_sdio_download_helper
• function btmrvl_sdio_download_fw_w_helper
• function btmrvl_sdio_card_to_host
• function btmrvl_sdio_process_int_status
• function btmrvl_sdio_read_to_clear
• function btmrvl_sdio_write_to_clear
• function btmrvl_sdio_interrupt
• function btmrvl_sdio_register_dev
• function btmrvl_sdio_unregister_dev
• function btmrvl_sdio_enable_host_int
• function btmrvl_sdio_disable_host_int
• function btmrvl_sdio_host_to_card
• function btmrvl_sdio_download_fw
• function btmrvl_sdio_wakeup_fw
• function btmrvl_sdio_dump_regs
• function btmrvl_sdio_rdwr_firmware
• function btmrvl_sdio_coredump
• function btmrvl_sdio_probe
• function btmrvl_sdio_remove
• function btmrvl_sdio_suspend
• function device_may_wakeup
• function btmrvl_sdio_resume
• function device_may_wakeup
• function btmrvl_sdio_init_module
• function btmrvl_sdio_exit_module
• module init btmrvl_sdio_init_module

Annotated Snippet

module_init(btmrvl_sdio_init_module);
module_exit(btmrvl_sdio_exit_module);

MODULE_AUTHOR("Marvell International Ltd.");
MODULE_DESCRIPTION("Marvell BT-over-SDIO driver ver " VERSION);
MODULE_VERSION(VERSION);
MODULE_LICENSE("GPL v2");
MODULE_FIRMWARE("mrvl/sd8688_helper.bin");
MODULE_FIRMWARE("mrvl/sd8688.bin");
MODULE_FIRMWARE("mrvl/sd8787_uapsta.bin");
MODULE_FIRMWARE("mrvl/sd8797_uapsta.bin");
MODULE_FIRMWARE("mrvl/sd8887_uapsta.bin");
MODULE_FIRMWARE("mrvl/sd8897_uapsta.bin");
MODULE_FIRMWARE("mrvl/sdsd8977_combo_v2.bin");
MODULE_FIRMWARE("mrvl/sd8987_uapsta.bin");
MODULE_FIRMWARE("mrvl/sdsd8997_combo_v4.bin");

Annotation

• Immediate include surface: `linux/firmware.h`, `linux/slab.h`, `linux/suspend.h`, `linux/mmc/sdio_ids.h`, `linux/mmc/sdio_func.h`, `linux/module.h`, `linux/devcoredump.h`, `net/bluetooth/bluetooth.h`.
• Detected declarations: `function btmrvl_wake_irq_bt`, `function btmrvl_sdio_probe_of`, `function btmrvl_sdio_get_rx_unit`, `function btmrvl_sdio_read_fw_status`, `function btmrvl_sdio_read_rx_len`, `function btmrvl_sdio_enable_host_int_mask`, `function btmrvl_sdio_disable_host_int_mask`, `function btmrvl_sdio_poll_card_status`, `function btmrvl_sdio_verify_fw_download`, `function btmrvl_sdio_download_helper`.
• Atlas domain: Driver Families / drivers/bluetooth.
• 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.