drivers/tty/serial/lpc32xx_hs.c

File Facts

System

Linux kernel

Corpus path

drivers/tty/serial/lpc32xx_hs.c

Extension

.c

Size

18762 bytes

Lines

735

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.
• 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/ioport.h
• linux/init.h
• linux/console.h
• linux/sysrq.h
• linux/tty.h
• linux/tty_flip.h
• linux/serial_core.h
• linux/serial.h
• linux/platform_device.h
• linux/delay.h
• linux/nmi.h
• linux/io.h
• linux/irq.h
• linux/of.h
• linux/sizes.h
• linux/soc/nxp/lpc32xx-misc.h

Detected Declarations

• struct lpc32xx_hsuart_port
• function wait_for_xmit_empty
• function wait_for_xmit_ready
• function lpc32xx_hsuart_console_putchar
• function lpc32xx_hsuart_console_write
• function lpc32xx_hsuart_console_setup
• function lpc32xx_hsuart_console_init
• function __serial_get_clock_div
• function __serial_uart_flush
• function __serial_lpc32xx_rx
• function serial_lpc32xx_tx_ready
• function __serial_lpc32xx_tx
• function serial_lpc32xx_interrupt
• function serial_lpc32xx_tx_empty
• function serial_lpc32xx_set_mctrl
• function serial_lpc32xx_stop_tx
• function serial_lpc32xx_start_tx
• function serial_lpc32xx_stop_rx
• function serial_lpc32xx_break_ctl
• function serial_lpc32xx_startup
• function serial_lpc32xx_shutdown
• function serial_lpc32xx_set_termios
• function serial_lpc32xx_release_port
• function serial_lpc32xx_request_port
• function serial_lpc32xx_config_port
• function serial_lpc32xx_verify_port
• function serial_hs_lpc32xx_probe
• function serial_hs_lpc32xx_remove
• function serial_hs_lpc32xx_suspend
• function serial_hs_lpc32xx_resume
• function lpc32xx_hsuart_init
• function lpc32xx_hsuart_exit
• module init lpc32xx_hsuart_init

Annotated Snippet

module_init(lpc32xx_hsuart_init);
module_exit(lpc32xx_hsuart_exit);

MODULE_AUTHOR("Kevin Wells <kevin.wells@nxp.com>");
MODULE_AUTHOR("Roland Stigge <stigge@antcom.de>");
MODULE_DESCRIPTION("NXP LPC32XX High Speed UART driver");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/module.h`, `linux/ioport.h`, `linux/init.h`, `linux/console.h`, `linux/sysrq.h`, `linux/tty.h`, `linux/tty_flip.h`, `linux/serial_core.h`.
• Detected declarations: `struct lpc32xx_hsuart_port`, `function wait_for_xmit_empty`, `function wait_for_xmit_ready`, `function lpc32xx_hsuart_console_putchar`, `function lpc32xx_hsuart_console_write`, `function lpc32xx_hsuart_console_setup`, `function lpc32xx_hsuart_console_init`, `function __serial_get_clock_div`, `function __serial_uart_flush`, `function __serial_lpc32xx_rx`.
• Atlas domain: Driver Families / drivers/tty.
• 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.