drivers/tty/serial/sa1100.c

File Facts

System

Linux kernel

Corpus path

drivers/tty/serial/sa1100.c

Extension

.c

Size

22793 bytes

Lines

922

Domain

Driver Families

Bucket

drivers/tty

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.
• 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/ioport.h
• linux/init.h
• linux/console.h
• linux/sysrq.h
• linux/platform_data/sa11x0-serial.h
• linux/platform_device.h
• linux/tty.h
• linux/tty_flip.h
• linux/serial_core.h
• linux/serial.h
• linux/io.h
• asm/irq.h
• mach/hardware.h
• mach/irqs.h
• serial_mctrl_gpio.h

Detected Declarations

• struct sa1100_port
• function sa1100_mctrl_check
• function sa1100_timeout
• function sa1100_stop_tx
• function sa1100_start_tx
• function sa1100_stop_rx
• function sa1100_enable_ms
• function sa1100_rx_chars
• function sa1100_tx_chars
• function sa1100_int
• function sa1100_tx_empty
• function sa1100_get_mctrl
• function sa1100_set_mctrl
• function sa1100_break_ctl
• function sa1100_startup
• function sa1100_shutdown
• function sa1100_set_termios
• function region
• function region
• function sa1100_config_port
• function serial_struct
• function sa1100_init_ports
• function sa1100_register_uart_fns
• function suspend
• function sa1100_console_putchar
• function sa1100_console_write
• function initialised
• function sa1100_console_setup
• function sa1100_rs_console_init
• function sa1100_serial_suspend
• function sa1100_serial_resume
• function sa1100_serial_add_one_port
• function sa1100_serial_probe
• function sa1100_serial_remove
• function sa1100_serial_init
• function sa1100_serial_exit
• module init sa1100_serial_init

Annotated Snippet

module_init(sa1100_serial_init);
module_exit(sa1100_serial_exit);

MODULE_AUTHOR("Deep Blue Solutions Ltd");
MODULE_DESCRIPTION("SA1100 generic serial port driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS_CHARDEV_MAJOR(SERIAL_SA1100_MAJOR);
MODULE_ALIAS("platform:sa11x0-uart");

Annotation

• Immediate include surface: `linux/module.h`, `linux/ioport.h`, `linux/init.h`, `linux/console.h`, `linux/sysrq.h`, `linux/platform_data/sa11x0-serial.h`, `linux/platform_device.h`, `linux/tty.h`.
• Detected declarations: `struct sa1100_port`, `function sa1100_mctrl_check`, `function sa1100_timeout`, `function sa1100_stop_tx`, `function sa1100_start_tx`, `function sa1100_stop_rx`, `function sa1100_enable_ms`, `function sa1100_rx_chars`, `function sa1100_tx_chars`, `function sa1100_int`.
• Atlas domain: Driver Families / drivers/tty.
• Implementation status: integration implementation candidate.
• 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.