05caac585f
Convert parport_serial to use the new 8250_pci interface, converting the table to a pciserial_board table. This also unuses the SPCI_* definitions in serialP.h, which can now be removed. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
144 lines
3.6 KiB
C
144 lines
3.6 KiB
C
/*
|
|
* Private header file for the (dumb) serial driver
|
|
*
|
|
* Copyright (C) 1997 by Theodore Ts'o.
|
|
*
|
|
* Redistribution of this file is permitted under the terms of the GNU
|
|
* Public License (GPL)
|
|
*/
|
|
|
|
#ifndef _LINUX_SERIALP_H
|
|
#define _LINUX_SERIALP_H
|
|
|
|
/*
|
|
* This is our internal structure for each serial port's state.
|
|
*
|
|
* Many fields are paralleled by the structure used by the serial_struct
|
|
* structure.
|
|
*
|
|
* For definitions of the flags field, see tty.h
|
|
*/
|
|
|
|
#include <linux/config.h>
|
|
#include <linux/termios.h>
|
|
#include <linux/workqueue.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/circ_buf.h>
|
|
#include <linux/wait.h>
|
|
|
|
struct serial_state {
|
|
int magic;
|
|
int baud_base;
|
|
unsigned long port;
|
|
int irq;
|
|
int flags;
|
|
int hub6;
|
|
int type;
|
|
int line;
|
|
int revision; /* Chip revision (950) */
|
|
int xmit_fifo_size;
|
|
int custom_divisor;
|
|
int count;
|
|
u8 *iomem_base;
|
|
u16 iomem_reg_shift;
|
|
unsigned short close_delay;
|
|
unsigned short closing_wait; /* time to wait before closing */
|
|
struct async_icount icount;
|
|
int io_type;
|
|
struct async_struct *info;
|
|
struct pci_dev *dev;
|
|
};
|
|
|
|
struct async_struct {
|
|
int magic;
|
|
unsigned long port;
|
|
int hub6;
|
|
int flags;
|
|
int xmit_fifo_size;
|
|
struct serial_state *state;
|
|
struct tty_struct *tty;
|
|
int read_status_mask;
|
|
int ignore_status_mask;
|
|
int timeout;
|
|
int quot;
|
|
int x_char; /* xon/xoff character */
|
|
int close_delay;
|
|
unsigned short closing_wait;
|
|
unsigned short closing_wait2; /* obsolete */
|
|
int IER; /* Interrupt Enable Register */
|
|
int MCR; /* Modem control register */
|
|
int LCR; /* Line control register */
|
|
int ACR; /* 16950 Additional Control Reg. */
|
|
unsigned long event;
|
|
unsigned long last_active;
|
|
int line;
|
|
int blocked_open; /* # of blocked opens */
|
|
struct circ_buf xmit;
|
|
spinlock_t xmit_lock;
|
|
u8 *iomem_base;
|
|
u16 iomem_reg_shift;
|
|
int io_type;
|
|
struct work_struct work;
|
|
struct tasklet_struct tlet;
|
|
#ifdef DECLARE_WAITQUEUE
|
|
wait_queue_head_t open_wait;
|
|
wait_queue_head_t close_wait;
|
|
wait_queue_head_t delta_msr_wait;
|
|
#else
|
|
struct wait_queue *open_wait;
|
|
struct wait_queue *close_wait;
|
|
struct wait_queue *delta_msr_wait;
|
|
#endif
|
|
struct async_struct *next_port; /* For the linked list */
|
|
struct async_struct *prev_port;
|
|
};
|
|
|
|
#define CONFIGURED_SERIAL_PORT(info) ((info)->port || ((info)->iomem_base))
|
|
|
|
#define SERIAL_MAGIC 0x5301
|
|
#define SSTATE_MAGIC 0x5302
|
|
|
|
/*
|
|
* Events are used to schedule things to happen at timer-interrupt
|
|
* time, instead of at rs interrupt time.
|
|
*/
|
|
#define RS_EVENT_WRITE_WAKEUP 0
|
|
|
|
/*
|
|
* Multiport serial configuration structure --- internal structure
|
|
*/
|
|
struct rs_multiport_struct {
|
|
int port1;
|
|
unsigned char mask1, match1;
|
|
int port2;
|
|
unsigned char mask2, match2;
|
|
int port3;
|
|
unsigned char mask3, match3;
|
|
int port4;
|
|
unsigned char mask4, match4;
|
|
int port_monitor;
|
|
};
|
|
|
|
#if defined(__alpha__) && !defined(CONFIG_PCI)
|
|
/*
|
|
* Digital did something really horribly wrong with the OUT1 and OUT2
|
|
* lines on at least some ALPHA's. The failure mode is that if either
|
|
* is cleared, the machine locks up with endless interrupts.
|
|
*
|
|
* This is still used by arch/mips/au1000/common/serial.c for some weird
|
|
* reason (mips != alpha!)
|
|
*/
|
|
#define ALPHA_KLUDGE_MCR (UART_MCR_OUT2 | UART_MCR_OUT1)
|
|
#elif defined(CONFIG_SBC8560)
|
|
/*
|
|
* WindRiver did something similarly broken on their SBC8560 board. The
|
|
* UART tristates its IRQ output while OUT2 is clear, but they pulled
|
|
* the interrupt line _up_ instead of down, so if we register the IRQ
|
|
* while the UART is in that state, we die in an IRQ storm. */
|
|
#define ALPHA_KLUDGE_MCR (UART_MCR_OUT2)
|
|
#else
|
|
#define ALPHA_KLUDGE_MCR 0
|
|
#endif
|
|
|
|
#endif /* _LINUX_SERIAL_H */
|