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Linux Kernel
3.7.1
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Linux Kernel
3.7.1
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#include <linux/module.h>#include <linux/tty.h>#include <linux/tty_flip.h>#include <linux/slab.h>#include <linux/init.h>#include <linux/console.h>#include <linux/proc_fs.h>#include <linux/seq_file.h>#include <linux/device.h>#include <linux/serial.h>#include <linux/serial_core.h>#include <linux/delay.h>#include <linux/mutex.h>#include <asm/irq.h>#include <asm/uaccess.h>Go to the source code of this file.
Data Structures | |
| struct | uart_match |
Macros | |
| #define | HIGH_BITS_OFFSET ((sizeof(long)-sizeof(int))*8) |
| #define | uart_console(port) (0) |
| #define | uart_set_mctrl(port, set) uart_update_mctrl(port, set, 0) |
| #define | uart_clear_mctrl(port, clear) uart_update_mctrl(port, 0, clear) |
| #define | RELEVANT_IFLAG(iflag) ((iflag) & (IGNBRK|BRKINT|IGNPAR|PARMRK|INPCK)) |
Definition at line 51 of file serial_core.c.
Definition at line 128 of file serial_core.c.
| #define uart_console | ( | port | ) | (0) |
Definition at line 56 of file serial_core.c.
Definition at line 127 of file serial_core.c.
| EXPORT_SYMBOL | ( | uart_update_timeout | ) |
| EXPORT_SYMBOL | ( | uart_get_baud_rate | ) |
| EXPORT_SYMBOL | ( | uart_get_divisor | ) |
| EXPORT_SYMBOL | ( | uart_match_port | ) |
| EXPORT_SYMBOL | ( | uart_write_wakeup | ) |
| EXPORT_SYMBOL | ( | uart_register_driver | ) |
| EXPORT_SYMBOL | ( | uart_unregister_driver | ) |
| EXPORT_SYMBOL | ( | uart_suspend_port | ) |
| EXPORT_SYMBOL | ( | uart_resume_port | ) |
| EXPORT_SYMBOL | ( | uart_add_one_port | ) |
| EXPORT_SYMBOL | ( | uart_remove_one_port | ) |
| EXPORT_SYMBOL_GPL | ( | uart_handle_dcd_change | ) |
| EXPORT_SYMBOL_GPL | ( | uart_handle_cts_change | ) |
| EXPORT_SYMBOL_GPL | ( | uart_insert_char | ) |
| MODULE_LICENSE | ( | "GPL" | ) |
| int uart_add_one_port | ( | struct uart_driver * | drv, |
| struct uart_port * | uport | ||
| ) |
uart_add_one_port - attach a driver-defined port structure : pointer to the uart low level driver structure for this port : uart port structure to use for this port.
This allows the driver to register its own uart_port structure with the core driver. The main purpose is to allow the low level uart drivers to expand uart_port, rather than having yet more levels of structures.
Definition at line 2369 of file serial_core.c.
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read |
Definition at line 2322 of file serial_core.c.
| unsigned int uart_get_baud_rate | ( | struct uart_port * | port, |
| struct ktermios * | termios, | ||
| struct ktermios * | old, | ||
| unsigned int | min, | ||
| unsigned int | max | ||
| ) |
uart_get_baud_rate - return baud rate for a particular port : uart_port structure describing the port in question. : desired termios settings. : old termios (or NULL) : minimum acceptable baud rate : maximum acceptable baud rate
Decode the termios structure into a numeric baud rate, taking account of the magic 38400 baud rate (with spd_* flags), and mapping the B0 rate to 9600 baud.
If the new baud rate is invalid, try the old termios setting. If it's still invalid, we try 9600 baud.
Update the structure to reflect the baud rate we're actually going to be using. Don't do this for the case where B0 is requested ("hang up").
Definition at line 335 of file serial_core.c.
uart_handle_cts_change - handle a change of clear-to-send state : uart_port structure for the open port : new clear to send status, nonzero if active
Definition at line 2555 of file serial_core.c.
uart_handle_dcd_change - handle a change of carrier detect state : uart_port structure for the open port : new carrier detect status, nonzero if active
Definition at line 2517 of file serial_core.c.
| void uart_insert_char | ( | struct uart_port * | port, |
| unsigned int | status, | ||
| unsigned int | overrun, | ||
| unsigned int | ch, | ||
| unsigned int | flag | ||
| ) |
uart_insert_char - push a char to the uart layer
User is responsible to call tty_flip_buffer_push when they are done with insertion.
: corresponding port : state of the serial port RX buffer (LSR for 8250) : mask of overrun bits in : character to push : flag for the character (see TTY_NORMAL and friends)
Definition at line 2591 of file serial_core.c.
Definition at line 2491 of file serial_core.c.
| int uart_register_driver | ( | struct uart_driver * | drv | ) |
uart_register_driver - register a driver with the uart core layer : low level driver structure
Register a uart driver with the core driver. We in turn register with the tty layer, and initialise the core driver per-port state.
We have a proc file in /proc/tty/driver which is named after the normal driver.
drv->port should be NULL, and the per-port structures should be registered using uart_add_one_port after this call has succeeded.
Definition at line 2245 of file serial_core.c.
| int uart_remove_one_port | ( | struct uart_driver * | drv, |
| struct uart_port * | uport | ||
| ) |
uart_remove_one_port - detach a driver defined port structure : pointer to the uart low level driver structure for this port : uart port structure for this port
This unhooks (and hangs up) the specified port structure from the core driver. No further calls will be made to the low-level code for this port.
Definition at line 2442 of file serial_core.c.
| int uart_resume_port | ( | struct uart_driver * | drv, |
| struct uart_port * | uport | ||
| ) |
Definition at line 1945 of file serial_core.c.
| int uart_suspend_port | ( | struct uart_driver * | drv, |
| struct uart_port * | uport | ||
| ) |
Definition at line 1879 of file serial_core.c.
| void uart_unregister_driver | ( | struct uart_driver * | drv | ) |
uart_unregister_driver - remove a driver from the uart core layer : low level driver structure
Remove all references to a driver from the core driver. The low level driver must have removed all its ports via the uart_remove_one_port() if it registered them with uart_add_one_port(). (ie, drv->port == NULL)
Definition at line 2312 of file serial_core.c.
Definition at line 70 of file serial_core.c.
1.8.2