mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-23 12:43:55 +08:00
ce7240e445
This resolves the differences between the original 8250 patch, the revised 8250 patch and the independant clean up of the octeon driver (to use platform devices properly yay!) Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
124 lines
4.0 KiB
C
124 lines
4.0 KiB
C
/*
|
|
* linux/include/linux/serial_8250.h
|
|
*
|
|
* Copyright (C) 2004 Russell King
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*/
|
|
#ifndef _LINUX_SERIAL_8250_H
|
|
#define _LINUX_SERIAL_8250_H
|
|
|
|
#include <linux/serial_core.h>
|
|
#include <linux/platform_device.h>
|
|
|
|
/*
|
|
* This is the platform device platform_data structure
|
|
*/
|
|
struct plat_serial8250_port {
|
|
unsigned long iobase; /* io base address */
|
|
void __iomem *membase; /* ioremap cookie or NULL */
|
|
resource_size_t mapbase; /* resource base */
|
|
unsigned int irq; /* interrupt number */
|
|
unsigned long irqflags; /* request_irq flags */
|
|
unsigned int uartclk; /* UART clock rate */
|
|
void *private_data;
|
|
unsigned char regshift; /* register shift */
|
|
unsigned char iotype; /* UPIO_* */
|
|
unsigned char hub6;
|
|
upf_t flags; /* UPF_* flags */
|
|
unsigned int type; /* If UPF_FIXED_TYPE */
|
|
unsigned int (*serial_in)(struct uart_port *, int);
|
|
void (*serial_out)(struct uart_port *, int, int);
|
|
void (*set_termios)(struct uart_port *,
|
|
struct ktermios *new,
|
|
struct ktermios *old);
|
|
int (*handle_irq)(struct uart_port *);
|
|
void (*pm)(struct uart_port *, unsigned int state,
|
|
unsigned old);
|
|
void (*handle_break)(struct uart_port *);
|
|
};
|
|
|
|
/*
|
|
* Allocate 8250 platform device IDs. Nothing is implied by
|
|
* the numbering here, except for the legacy entry being -1.
|
|
*/
|
|
enum {
|
|
PLAT8250_DEV_LEGACY = -1,
|
|
PLAT8250_DEV_PLATFORM,
|
|
PLAT8250_DEV_PLATFORM1,
|
|
PLAT8250_DEV_PLATFORM2,
|
|
PLAT8250_DEV_FOURPORT,
|
|
PLAT8250_DEV_ACCENT,
|
|
PLAT8250_DEV_BOCA,
|
|
PLAT8250_DEV_EXAR_ST16C554,
|
|
PLAT8250_DEV_HUB6,
|
|
PLAT8250_DEV_AU1X00,
|
|
PLAT8250_DEV_SM501,
|
|
};
|
|
|
|
/*
|
|
* This should be used by drivers which want to register
|
|
* their own 8250 ports without registering their own
|
|
* platform device. Using these will make your driver
|
|
* dependent on the 8250 driver.
|
|
*/
|
|
|
|
struct uart_8250_port {
|
|
struct uart_port port;
|
|
struct timer_list timer; /* "no irq" timer */
|
|
struct list_head list; /* ports on this IRQ */
|
|
unsigned short capabilities; /* port capabilities */
|
|
unsigned short bugs; /* port bugs */
|
|
unsigned int tx_loadsz; /* transmit fifo load size */
|
|
unsigned char acr;
|
|
unsigned char ier;
|
|
unsigned char lcr;
|
|
unsigned char mcr;
|
|
unsigned char mcr_mask; /* mask of user bits */
|
|
unsigned char mcr_force; /* mask of forced bits */
|
|
unsigned char cur_iotype; /* Running I/O type */
|
|
|
|
/*
|
|
* Some bits in registers are cleared on a read, so they must
|
|
* be saved whenever the register is read but the bits will not
|
|
* be immediately processed.
|
|
*/
|
|
#define LSR_SAVE_FLAGS UART_LSR_BRK_ERROR_BITS
|
|
unsigned char lsr_saved_flags;
|
|
#define MSR_SAVE_FLAGS UART_MSR_ANY_DELTA
|
|
unsigned char msr_saved_flags;
|
|
|
|
/* 8250 specific callbacks */
|
|
int (*dl_read)(struct uart_8250_port *);
|
|
void (*dl_write)(struct uart_8250_port *, int);
|
|
};
|
|
|
|
int serial8250_register_8250_port(struct uart_8250_port *);
|
|
void serial8250_unregister_port(int line);
|
|
void serial8250_suspend_port(int line);
|
|
void serial8250_resume_port(int line);
|
|
|
|
extern int early_serial_setup(struct uart_port *port);
|
|
|
|
extern int serial8250_find_port(struct uart_port *p);
|
|
extern int serial8250_find_port_for_earlycon(void);
|
|
extern int setup_early_serial8250_console(char *cmdline);
|
|
extern void serial8250_do_set_termios(struct uart_port *port,
|
|
struct ktermios *termios, struct ktermios *old);
|
|
extern void serial8250_do_pm(struct uart_port *port, unsigned int state,
|
|
unsigned int oldstate);
|
|
extern int fsl8250_handle_irq(struct uart_port *port);
|
|
int serial8250_handle_irq(struct uart_port *port, unsigned int iir);
|
|
unsigned char serial8250_rx_chars(struct uart_8250_port *up, unsigned char lsr);
|
|
void serial8250_tx_chars(struct uart_8250_port *up);
|
|
unsigned int serial8250_modem_status(struct uart_8250_port *up);
|
|
|
|
extern void serial8250_set_isa_configurator(void (*v)
|
|
(int port, struct uart_port *up,
|
|
unsigned short *capabilities));
|
|
|
|
#endif
|