// SPDX-License-Identifier: GPL-2.0+ /* * Actions Semi Owl family serial console * * Copyright 2013 Actions Semi Inc. * Author: Actions Semi, Inc. * * Copyright (c) 2016-2017 Andreas Färber */ #include <linux/clk.h> #include <linux/console.h> #include <linux/delay.h> #include <linux/io.h> #include <linux/iopoll.h> #include <linux/module.h> #include <linux/of.h> #include <linux/platform_device.h> #include <linux/serial.h> #include <linux/serial_core.h> #include <linux/tty.h> #include <linux/tty_flip.h> #define OWL_UART_PORT_NUM … #define OWL_UART_DEV_NAME … #define OWL_UART_CTL … #define OWL_UART_RXDAT … #define OWL_UART_TXDAT … #define OWL_UART_STAT … #define OWL_UART_CTL_DWLS_MASK … #define OWL_UART_CTL_DWLS_5BITS … #define OWL_UART_CTL_DWLS_6BITS … #define OWL_UART_CTL_DWLS_7BITS … #define OWL_UART_CTL_DWLS_8BITS … #define OWL_UART_CTL_STPS_2BITS … #define OWL_UART_CTL_PRS_MASK … #define OWL_UART_CTL_PRS_NONE … #define OWL_UART_CTL_PRS_ODD … #define OWL_UART_CTL_PRS_MARK … #define OWL_UART_CTL_PRS_EVEN … #define OWL_UART_CTL_PRS_SPACE … #define OWL_UART_CTL_AFE … #define OWL_UART_CTL_TRFS_TX … #define OWL_UART_CTL_EN … #define OWL_UART_CTL_RXDE … #define OWL_UART_CTL_TXDE … #define OWL_UART_CTL_RXIE … #define OWL_UART_CTL_TXIE … #define OWL_UART_CTL_LBEN … #define OWL_UART_STAT_RIP … #define OWL_UART_STAT_TIP … #define OWL_UART_STAT_RXER … #define OWL_UART_STAT_TFER … #define OWL_UART_STAT_RXST … #define OWL_UART_STAT_RFEM … #define OWL_UART_STAT_TFFU … #define OWL_UART_STAT_CTSS … #define OWL_UART_STAT_RTSS … #define OWL_UART_STAT_TFES … #define OWL_UART_STAT_TRFL_MASK … #define OWL_UART_STAT_UTBB … #define OWL_UART_POLL_USEC … #define OWL_UART_TIMEOUT_USEC … static struct uart_driver owl_uart_driver; struct owl_uart_info { … }; struct owl_uart_port { … }; #define to_owl_uart_port(prt) … static struct owl_uart_port *owl_uart_ports[OWL_UART_PORT_NUM]; static inline void owl_uart_write(struct uart_port *port, u32 val, unsigned int off) { … } static inline u32 owl_uart_read(struct uart_port *port, unsigned int off) { … } static void owl_uart_set_mctrl(struct uart_port *port, unsigned int mctrl) { … } static unsigned int owl_uart_get_mctrl(struct uart_port *port) { … } static unsigned int owl_uart_tx_empty(struct uart_port *port) { … } static void owl_uart_stop_rx(struct uart_port *port) { … } static void owl_uart_stop_tx(struct uart_port *port) { … } static void owl_uart_start_tx(struct uart_port *port) { … } static void owl_uart_send_chars(struct uart_port *port) { … } static void owl_uart_receive_chars(struct uart_port *port) { … } static irqreturn_t owl_uart_irq(int irq, void *dev_id) { … } static void owl_uart_shutdown(struct uart_port *port) { … } static int owl_uart_startup(struct uart_port *port) { … } static void owl_uart_change_baudrate(struct owl_uart_port *owl_port, unsigned long baud) { … } static void owl_uart_set_termios(struct uart_port *port, struct ktermios *termios, const struct ktermios *old) { … } static void owl_uart_release_port(struct uart_port *port) { … } static int owl_uart_request_port(struct uart_port *port) { … } static const char *owl_uart_type(struct uart_port *port) { … } static int owl_uart_verify_port(struct uart_port *port, struct serial_struct *ser) { … } static void owl_uart_config_port(struct uart_port *port, int flags) { … } #ifdef CONFIG_CONSOLE_POLL static int owl_uart_poll_get_char(struct uart_port *port) { … } static void owl_uart_poll_put_char(struct uart_port *port, unsigned char ch) { … } #endif /* CONFIG_CONSOLE_POLL */ static const struct uart_ops owl_uart_ops = …; #ifdef CONFIG_SERIAL_OWL_CONSOLE static void owl_console_putchar(struct uart_port *port, unsigned char ch) { … } static void owl_uart_port_write(struct uart_port *port, const char *s, u_int count) { … } static void owl_uart_console_write(struct console *co, const char *s, u_int count) { … } static int owl_uart_console_setup(struct console *co, char *options) { … } static struct console owl_uart_console = …; static int __init owl_uart_console_init(void) { … } console_initcall(owl_uart_console_init); static void owl_uart_early_console_write(struct console *co, const char *s, u_int count) { … } static int __init owl_uart_early_console_setup(struct earlycon_device *device, const char *opt) { … } OF_EARLYCON_DECLARE(…); #define OWL_UART_CONSOLE … #else #define OWL_UART_CONSOLE … #endif static struct uart_driver owl_uart_driver = …; static const struct owl_uart_info owl_s500_info = …; static const struct owl_uart_info owl_s900_info = …; static const struct of_device_id owl_uart_dt_matches[] = …; MODULE_DEVICE_TABLE(of, owl_uart_dt_matches); static int owl_uart_probe(struct platform_device *pdev) { … } static void owl_uart_remove(struct platform_device *pdev) { … } static struct platform_driver owl_uart_platform_driver = …; static int __init owl_uart_init(void) { … } static void __exit owl_uart_exit(void) { … } module_init(…) …; module_exit(owl_uart_exit); MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
Codebase Browser
linux