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![Jiri Slaby](/assets/img/avatar_default.png)
interruptible_sleep_on is deprecated, use completion instead Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2844 lines
75 KiB
C
2844 lines
75 KiB
C
/*****************************************************************************/
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/*
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* moxa.c -- MOXA Intellio family multiport serial driver.
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*
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* Copyright (C) 1999-2000 Moxa Technologies (support@moxa.com.tw).
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*
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* This code is loosely based on the Linux serial driver, written by
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* Linus Torvalds, Theodore T'so and others.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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/*
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* MOXA Intellio Series Driver
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* for : LINUX
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* date : 1999/1/7
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* version : 5.1
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*/
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#include <linux/module.h>
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#include <linux/types.h>
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#include <linux/mm.h>
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#include <linux/ioport.h>
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#include <linux/errno.h>
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#include <linux/signal.h>
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#include <linux/sched.h>
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#include <linux/timer.h>
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#include <linux/interrupt.h>
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#include <linux/tty.h>
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#include <linux/tty_flip.h>
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#include <linux/major.h>
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#include <linux/string.h>
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#include <linux/fcntl.h>
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#include <linux/ptrace.h>
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#include <linux/serial.h>
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#include <linux/tty_driver.h>
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#include <linux/delay.h>
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#include <linux/pci.h>
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#include <linux/init.h>
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#include <linux/bitops.h>
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#include <linux/completion.h>
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#include <asm/system.h>
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#include <asm/io.h>
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#include <asm/uaccess.h>
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#define MOXA_VERSION "5.1k"
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#define MOXAMAJOR 172
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#define MOXACUMAJOR 173
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#define MAX_BOARDS 4 /* Don't change this value */
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#define MAX_PORTS_PER_BOARD 32 /* Don't change this value */
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#define MAX_PORTS (MAX_BOARDS * MAX_PORTS_PER_BOARD)
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/*
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* Define the Moxa PCI vendor and device IDs.
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*/
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#define MOXA_BUS_TYPE_ISA 0
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#define MOXA_BUS_TYPE_PCI 1
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enum {
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MOXA_BOARD_C218_PCI = 1,
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MOXA_BOARD_C218_ISA,
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MOXA_BOARD_C320_PCI,
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MOXA_BOARD_C320_ISA,
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MOXA_BOARD_CP204J,
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};
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static char *moxa_brdname[] =
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{
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"C218 Turbo PCI series",
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"C218 Turbo ISA series",
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"C320 Turbo PCI series",
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"C320 Turbo ISA series",
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"CP-204J series",
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};
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#ifdef CONFIG_PCI
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static struct pci_device_id moxa_pcibrds[] = {
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{ PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_C218),
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.driver_data = MOXA_BOARD_C218_PCI },
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{ PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_C320),
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.driver_data = MOXA_BOARD_C320_PCI },
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{ PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP204J),
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.driver_data = MOXA_BOARD_CP204J },
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{ 0 }
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};
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MODULE_DEVICE_TABLE(pci, moxa_pcibrds);
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#endif /* CONFIG_PCI */
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struct moxa_isa_board_conf {
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int boardType;
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int numPorts;
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unsigned long baseAddr;
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};
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static struct moxa_isa_board_conf moxa_isa_boards[] =
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{
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/* {MOXA_BOARD_C218_ISA,8,0xDC000}, */
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};
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static struct moxa_board_conf {
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int boardType;
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int numPorts;
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unsigned long baseAddr;
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int busType;
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int loadstat;
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void __iomem *basemem;
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void __iomem *intNdx;
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void __iomem *intPend;
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void __iomem *intTable;
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} moxa_boards[MAX_BOARDS];
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struct mxser_mstatus {
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tcflag_t cflag;
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int cts;
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int dsr;
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int ri;
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int dcd;
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};
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struct moxaq_str {
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int inq;
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int outq;
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};
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struct moxa_port {
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int type;
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int port;
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int close_delay;
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unsigned short closing_wait;
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int count;
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int blocked_open;
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long event; /* long req'd for set_bit --RR */
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int asyncflags;
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unsigned long statusflags;
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struct tty_struct *tty;
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int cflag;
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wait_queue_head_t open_wait;
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struct completion close_wait;
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struct timer_list emptyTimer;
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char chkPort;
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char lineCtrl;
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void __iomem *tableAddr;
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long curBaud;
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char DCDState;
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char lowChkFlag;
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ushort breakCnt;
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};
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/* statusflags */
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#define TXSTOPPED 0x1
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#define LOWWAIT 0x2
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#define EMPTYWAIT 0x4
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#define THROTTLE 0x8
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#define SERIAL_DO_RESTART
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#define WAKEUP_CHARS 256
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static int ttymajor = MOXAMAJOR;
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/* Variables for insmod */
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#ifdef MODULE
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static int baseaddr[4];
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static int type[4];
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static int numports[4];
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#endif
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MODULE_AUTHOR("William Chen");
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MODULE_DESCRIPTION("MOXA Intellio Family Multiport Board Device Driver");
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MODULE_LICENSE("GPL");
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#ifdef MODULE
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module_param_array(type, int, NULL, 0);
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module_param_array(baseaddr, int, NULL, 0);
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module_param_array(numports, int, NULL, 0);
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#endif
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module_param(ttymajor, int, 0);
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/*
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* static functions:
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*/
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static int moxa_open(struct tty_struct *, struct file *);
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static void moxa_close(struct tty_struct *, struct file *);
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static int moxa_write(struct tty_struct *, const unsigned char *, int);
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static int moxa_write_room(struct tty_struct *);
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static void moxa_flush_buffer(struct tty_struct *);
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static int moxa_chars_in_buffer(struct tty_struct *);
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static void moxa_flush_chars(struct tty_struct *);
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static void moxa_put_char(struct tty_struct *, unsigned char);
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static int moxa_ioctl(struct tty_struct *, struct file *, unsigned int, unsigned long);
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static void moxa_throttle(struct tty_struct *);
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static void moxa_unthrottle(struct tty_struct *);
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static void moxa_set_termios(struct tty_struct *, struct ktermios *);
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static void moxa_stop(struct tty_struct *);
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static void moxa_start(struct tty_struct *);
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static void moxa_hangup(struct tty_struct *);
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static int moxa_tiocmget(struct tty_struct *tty, struct file *file);
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static int moxa_tiocmset(struct tty_struct *tty, struct file *file,
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unsigned int set, unsigned int clear);
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static void moxa_poll(unsigned long);
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static void moxa_set_tty_param(struct tty_struct *);
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static int moxa_block_till_ready(struct tty_struct *, struct file *,
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struct moxa_port *);
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static void moxa_setup_empty_event(struct tty_struct *);
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static void moxa_check_xmit_empty(unsigned long);
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static void moxa_shut_down(struct moxa_port *);
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static void moxa_receive_data(struct moxa_port *);
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/*
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* moxa board interface functions:
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*/
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static void MoxaDriverInit(void);
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static int MoxaDriverIoctl(unsigned int, unsigned long, int);
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static int MoxaDriverPoll(void);
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static int MoxaPortsOfCard(int);
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static int MoxaPortIsValid(int);
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static void MoxaPortEnable(int);
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static void MoxaPortDisable(int);
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static long MoxaPortGetMaxBaud(int);
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static long MoxaPortSetBaud(int, long);
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static int MoxaPortSetTermio(int, struct ktermios *, speed_t);
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static int MoxaPortGetLineOut(int, int *, int *);
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static void MoxaPortLineCtrl(int, int, int);
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static void MoxaPortFlowCtrl(int, int, int, int, int, int);
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static int MoxaPortLineStatus(int);
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static int MoxaPortDCDChange(int);
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static int MoxaPortDCDON(int);
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static void MoxaPortFlushData(int, int);
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static int MoxaPortWriteData(int, unsigned char *, int);
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static int MoxaPortReadData(int, struct tty_struct *tty);
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static int MoxaPortTxQueue(int);
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static int MoxaPortRxQueue(int);
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static int MoxaPortTxFree(int);
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static void MoxaPortTxDisable(int);
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static void MoxaPortTxEnable(int);
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static int MoxaPortResetBrkCnt(int);
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static void MoxaPortSendBreak(int, int);
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static int moxa_get_serial_info(struct moxa_port *, struct serial_struct __user *);
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static int moxa_set_serial_info(struct moxa_port *, struct serial_struct __user *);
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static void MoxaSetFifo(int port, int enable);
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static const struct tty_operations moxa_ops = {
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.open = moxa_open,
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.close = moxa_close,
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.write = moxa_write,
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.write_room = moxa_write_room,
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.flush_buffer = moxa_flush_buffer,
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.chars_in_buffer = moxa_chars_in_buffer,
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.flush_chars = moxa_flush_chars,
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.put_char = moxa_put_char,
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.ioctl = moxa_ioctl,
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.throttle = moxa_throttle,
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.unthrottle = moxa_unthrottle,
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.set_termios = moxa_set_termios,
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.stop = moxa_stop,
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.start = moxa_start,
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.hangup = moxa_hangup,
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.tiocmget = moxa_tiocmget,
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.tiocmset = moxa_tiocmset,
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};
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static struct tty_driver *moxaDriver;
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static struct moxa_port moxa_ports[MAX_PORTS];
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static DEFINE_TIMER(moxaTimer, moxa_poll, 0, 0);
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static DEFINE_SPINLOCK(moxa_lock);
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#ifdef CONFIG_PCI
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static int __devinit moxa_pci_probe(struct pci_dev *pdev,
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const struct pci_device_id *ent)
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{
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struct moxa_board_conf *board;
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unsigned int i;
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int board_type = ent->driver_data;
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int retval;
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retval = pci_enable_device(pdev);
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if (retval) {
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dev_err(&pdev->dev, "can't enable pci device\n");
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goto err;
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}
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for (i = 0; i < MAX_BOARDS; i++)
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if (moxa_boards[i].basemem == NULL)
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break;
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retval = -ENODEV;
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if (i >= MAX_BOARDS) {
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dev_warn(&pdev->dev, "more than %u MOXA Intellio family boards "
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"found. Board is ignored.\n", MAX_BOARDS);
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goto err;
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}
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board = &moxa_boards[i];
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board->basemem = pci_iomap(pdev, 2, 0x4000);
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if (board->basemem == NULL) {
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dev_err(&pdev->dev, "can't remap io space 2\n");
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goto err;
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}
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board->boardType = board_type;
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switch (board_type) {
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case MOXA_BOARD_C218_ISA:
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case MOXA_BOARD_C218_PCI:
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board->numPorts = 8;
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break;
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case MOXA_BOARD_CP204J:
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board->numPorts = 4;
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break;
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default:
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board->numPorts = 0;
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break;
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}
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board->busType = MOXA_BUS_TYPE_PCI;
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pci_set_drvdata(pdev, board);
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return (0);
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err:
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return retval;
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}
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static void __devexit moxa_pci_remove(struct pci_dev *pdev)
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{
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struct moxa_board_conf *brd = pci_get_drvdata(pdev);
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pci_iounmap(pdev, brd->basemem);
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brd->basemem = NULL;
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}
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static struct pci_driver moxa_pci_driver = {
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.name = "moxa",
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.id_table = moxa_pcibrds,
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.probe = moxa_pci_probe,
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.remove = __devexit_p(moxa_pci_remove)
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};
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#endif /* CONFIG_PCI */
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static int __init moxa_init(void)
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{
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int i, numBoards, retval = 0;
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struct moxa_port *ch;
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printk(KERN_INFO "MOXA Intellio family driver version %s\n",
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MOXA_VERSION);
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moxaDriver = alloc_tty_driver(MAX_PORTS + 1);
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if (!moxaDriver)
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return -ENOMEM;
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moxaDriver->owner = THIS_MODULE;
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moxaDriver->name = "ttyMX";
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moxaDriver->major = ttymajor;
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moxaDriver->minor_start = 0;
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moxaDriver->type = TTY_DRIVER_TYPE_SERIAL;
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moxaDriver->subtype = SERIAL_TYPE_NORMAL;
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moxaDriver->init_termios = tty_std_termios;
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moxaDriver->init_termios.c_cflag = B9600 | CS8 | CREAD | CLOCAL | HUPCL;
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moxaDriver->init_termios.c_ispeed = 9600;
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moxaDriver->init_termios.c_ospeed = 9600;
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moxaDriver->flags = TTY_DRIVER_REAL_RAW;
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tty_set_operations(moxaDriver, &moxa_ops);
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for (i = 0, ch = moxa_ports; i < MAX_PORTS; i++, ch++) {
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ch->type = PORT_16550A;
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ch->port = i;
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ch->close_delay = 5 * HZ / 10;
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ch->closing_wait = 30 * HZ;
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ch->cflag = B9600 | CS8 | CREAD | CLOCAL | HUPCL;
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init_waitqueue_head(&ch->open_wait);
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init_completion(&ch->close_wait);
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setup_timer(&ch->emptyTimer, moxa_check_xmit_empty,
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(unsigned long)ch);
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}
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pr_debug("Moxa tty devices major number = %d\n", ttymajor);
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if (tty_register_driver(moxaDriver)) {
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printk(KERN_ERR "Couldn't install MOXA Smartio family driver !\n");
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put_tty_driver(moxaDriver);
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return -1;
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}
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mod_timer(&moxaTimer, jiffies + HZ / 50);
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/* Find the boards defined in source code */
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numBoards = 0;
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for (i = 0; i < MAX_BOARDS; i++) {
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if ((moxa_isa_boards[i].boardType == MOXA_BOARD_C218_ISA) ||
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(moxa_isa_boards[i].boardType == MOXA_BOARD_C320_ISA)) {
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moxa_boards[numBoards].boardType = moxa_isa_boards[i].boardType;
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if (moxa_isa_boards[i].boardType == MOXA_BOARD_C218_ISA)
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moxa_boards[numBoards].numPorts = 8;
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else
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moxa_boards[numBoards].numPorts = moxa_isa_boards[i].numPorts;
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moxa_boards[numBoards].busType = MOXA_BUS_TYPE_ISA;
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moxa_boards[numBoards].baseAddr = moxa_isa_boards[i].baseAddr;
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pr_debug("Moxa board %2d: %s board(baseAddr=%lx)\n",
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numBoards + 1,
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moxa_brdname[moxa_boards[numBoards].boardType-1],
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moxa_boards[numBoards].baseAddr);
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numBoards++;
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}
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}
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/* Find the boards defined form module args. */
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#ifdef MODULE
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for (i = 0; i < MAX_BOARDS; i++) {
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if ((type[i] == MOXA_BOARD_C218_ISA) ||
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(type[i] == MOXA_BOARD_C320_ISA)) {
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pr_debug("Moxa board %2d: %s board(baseAddr=%lx)\n",
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numBoards + 1, moxa_brdname[type[i] - 1],
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(unsigned long)baseaddr[i]);
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if (numBoards >= MAX_BOARDS) {
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printk(KERN_WARNING "More than %d MOXA "
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"Intellio family boards found. Board "
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"is ignored.\n", MAX_BOARDS);
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continue;
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}
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moxa_boards[numBoards].boardType = type[i];
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if (moxa_isa_boards[i].boardType == MOXA_BOARD_C218_ISA)
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moxa_boards[numBoards].numPorts = 8;
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else
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moxa_boards[numBoards].numPorts = numports[i];
|
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moxa_boards[numBoards].busType = MOXA_BUS_TYPE_ISA;
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moxa_boards[numBoards].baseAddr = baseaddr[i];
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numBoards++;
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}
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}
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#endif
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|
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#ifdef CONFIG_PCI
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retval = pci_register_driver(&moxa_pci_driver);
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if (retval) {
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printk(KERN_ERR "Can't register moxa pci driver!\n");
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if (numBoards)
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retval = 0;
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}
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#endif
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|
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for (i = 0; i < numBoards; i++) {
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moxa_boards[i].basemem = ioremap(moxa_boards[i].baseAddr,
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0x4000);
|
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}
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|
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return retval;
|
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}
|
|
|
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static void __exit moxa_exit(void)
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{
|
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int i;
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|
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del_timer_sync(&moxaTimer);
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|
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for (i = 0; i < MAX_PORTS; i++)
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del_timer_sync(&moxa_ports[i].emptyTimer);
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|
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if (tty_unregister_driver(moxaDriver))
|
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printk(KERN_ERR "Couldn't unregister MOXA Intellio family "
|
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"serial driver\n");
|
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put_tty_driver(moxaDriver);
|
|
|
|
#ifdef CONFIG_PCI
|
|
pci_unregister_driver(&moxa_pci_driver);
|
|
#endif
|
|
|
|
for (i = 0; i < MAX_BOARDS; i++)
|
|
if (moxa_boards[i].basemem)
|
|
iounmap(moxa_boards[i].basemem);
|
|
}
|
|
|
|
module_init(moxa_init);
|
|
module_exit(moxa_exit);
|
|
|
|
static int moxa_open(struct tty_struct *tty, struct file *filp)
|
|
{
|
|
struct moxa_port *ch;
|
|
int port;
|
|
int retval;
|
|
|
|
port = tty->index;
|
|
if (port == MAX_PORTS) {
|
|
return (0);
|
|
}
|
|
if (!MoxaPortIsValid(port)) {
|
|
tty->driver_data = NULL;
|
|
return (-ENODEV);
|
|
}
|
|
|
|
ch = &moxa_ports[port];
|
|
ch->count++;
|
|
tty->driver_data = ch;
|
|
ch->tty = tty;
|
|
if (!(ch->asyncflags & ASYNC_INITIALIZED)) {
|
|
ch->statusflags = 0;
|
|
moxa_set_tty_param(tty);
|
|
MoxaPortLineCtrl(ch->port, 1, 1);
|
|
MoxaPortEnable(ch->port);
|
|
ch->asyncflags |= ASYNC_INITIALIZED;
|
|
}
|
|
retval = moxa_block_till_ready(tty, filp, ch);
|
|
|
|
moxa_unthrottle(tty);
|
|
|
|
if (ch->type == PORT_16550A) {
|
|
MoxaSetFifo(ch->port, 1);
|
|
} else {
|
|
MoxaSetFifo(ch->port, 0);
|
|
}
|
|
|
|
return (retval);
|
|
}
|
|
|
|
static void moxa_close(struct tty_struct *tty, struct file *filp)
|
|
{
|
|
struct moxa_port *ch;
|
|
int port;
|
|
|
|
port = tty->index;
|
|
if (port == MAX_PORTS) {
|
|
return;
|
|
}
|
|
if (!MoxaPortIsValid(port)) {
|
|
pr_debug("Invalid portno in moxa_close\n");
|
|
tty->driver_data = NULL;
|
|
return;
|
|
}
|
|
if (tty->driver_data == NULL) {
|
|
return;
|
|
}
|
|
if (tty_hung_up_p(filp)) {
|
|
return;
|
|
}
|
|
ch = (struct moxa_port *) tty->driver_data;
|
|
|
|
if ((tty->count == 1) && (ch->count != 1)) {
|
|
printk(KERN_WARNING "moxa_close: bad serial port count; "
|
|
"tty->count is 1, ch->count is %d\n", ch->count);
|
|
ch->count = 1;
|
|
}
|
|
if (--ch->count < 0) {
|
|
printk(KERN_WARNING "moxa_close: bad serial port count, "
|
|
"device=%s\n", tty->name);
|
|
ch->count = 0;
|
|
}
|
|
if (ch->count) {
|
|
return;
|
|
}
|
|
ch->asyncflags |= ASYNC_CLOSING;
|
|
|
|
ch->cflag = tty->termios->c_cflag;
|
|
if (ch->asyncflags & ASYNC_INITIALIZED) {
|
|
moxa_setup_empty_event(tty);
|
|
tty_wait_until_sent(tty, 30 * HZ); /* 30 seconds timeout */
|
|
del_timer_sync(&moxa_ports[ch->port].emptyTimer);
|
|
}
|
|
moxa_shut_down(ch);
|
|
MoxaPortFlushData(port, 2);
|
|
|
|
if (tty->driver->flush_buffer)
|
|
tty->driver->flush_buffer(tty);
|
|
tty_ldisc_flush(tty);
|
|
|
|
tty->closing = 0;
|
|
ch->event = 0;
|
|
ch->tty = NULL;
|
|
if (ch->blocked_open) {
|
|
if (ch->close_delay) {
|
|
msleep_interruptible(jiffies_to_msecs(ch->close_delay));
|
|
}
|
|
wake_up_interruptible(&ch->open_wait);
|
|
}
|
|
ch->asyncflags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_CLOSING);
|
|
complete_all(&ch->close_wait);
|
|
}
|
|
|
|
static int moxa_write(struct tty_struct *tty,
|
|
const unsigned char *buf, int count)
|
|
{
|
|
struct moxa_port *ch;
|
|
int len, port;
|
|
unsigned long flags;
|
|
|
|
ch = (struct moxa_port *) tty->driver_data;
|
|
if (ch == NULL)
|
|
return (0);
|
|
port = ch->port;
|
|
|
|
spin_lock_irqsave(&moxa_lock, flags);
|
|
len = MoxaPortWriteData(port, (unsigned char *) buf, count);
|
|
spin_unlock_irqrestore(&moxa_lock, flags);
|
|
|
|
/*********************************************
|
|
if ( !(ch->statusflags & LOWWAIT) &&
|
|
((len != count) || (MoxaPortTxFree(port) <= 100)) )
|
|
************************************************/
|
|
ch->statusflags |= LOWWAIT;
|
|
return (len);
|
|
}
|
|
|
|
static int moxa_write_room(struct tty_struct *tty)
|
|
{
|
|
struct moxa_port *ch;
|
|
|
|
if (tty->stopped)
|
|
return (0);
|
|
ch = (struct moxa_port *) tty->driver_data;
|
|
if (ch == NULL)
|
|
return (0);
|
|
return (MoxaPortTxFree(ch->port));
|
|
}
|
|
|
|
static void moxa_flush_buffer(struct tty_struct *tty)
|
|
{
|
|
struct moxa_port *ch = (struct moxa_port *) tty->driver_data;
|
|
|
|
if (ch == NULL)
|
|
return;
|
|
MoxaPortFlushData(ch->port, 1);
|
|
tty_wakeup(tty);
|
|
}
|
|
|
|
static int moxa_chars_in_buffer(struct tty_struct *tty)
|
|
{
|
|
int chars;
|
|
struct moxa_port *ch = (struct moxa_port *) tty->driver_data;
|
|
|
|
/*
|
|
* Sigh...I have to check if driver_data is NULL here, because
|
|
* if an open() fails, the TTY subsystem eventually calls
|
|
* tty_wait_until_sent(), which calls the driver's chars_in_buffer()
|
|
* routine. And since the open() failed, we return 0 here. TDJ
|
|
*/
|
|
if (ch == NULL)
|
|
return (0);
|
|
chars = MoxaPortTxQueue(ch->port);
|
|
if (chars) {
|
|
/*
|
|
* Make it possible to wakeup anything waiting for output
|
|
* in tty_ioctl.c, etc.
|
|
*/
|
|
if (!(ch->statusflags & EMPTYWAIT))
|
|
moxa_setup_empty_event(tty);
|
|
}
|
|
return (chars);
|
|
}
|
|
|
|
static void moxa_flush_chars(struct tty_struct *tty)
|
|
{
|
|
/*
|
|
* Don't think I need this, because this is called to empty the TX
|
|
* buffer for the 16450, 16550, etc.
|
|
*/
|
|
}
|
|
|
|
static void moxa_put_char(struct tty_struct *tty, unsigned char c)
|
|
{
|
|
struct moxa_port *ch;
|
|
int port;
|
|
unsigned long flags;
|
|
|
|
ch = (struct moxa_port *) tty->driver_data;
|
|
if (ch == NULL)
|
|
return;
|
|
port = ch->port;
|
|
spin_lock_irqsave(&moxa_lock, flags);
|
|
MoxaPortWriteData(port, &c, 1);
|
|
spin_unlock_irqrestore(&moxa_lock, flags);
|
|
/************************************************
|
|
if ( !(ch->statusflags & LOWWAIT) && (MoxaPortTxFree(port) <= 100) )
|
|
*************************************************/
|
|
ch->statusflags |= LOWWAIT;
|
|
}
|
|
|
|
static int moxa_tiocmget(struct tty_struct *tty, struct file *file)
|
|
{
|
|
struct moxa_port *ch = (struct moxa_port *) tty->driver_data;
|
|
int port;
|
|
int flag = 0, dtr, rts;
|
|
|
|
port = tty->index;
|
|
if ((port != MAX_PORTS) && (!ch))
|
|
return (-EINVAL);
|
|
|
|
MoxaPortGetLineOut(ch->port, &dtr, &rts);
|
|
if (dtr)
|
|
flag |= TIOCM_DTR;
|
|
if (rts)
|
|
flag |= TIOCM_RTS;
|
|
dtr = MoxaPortLineStatus(ch->port);
|
|
if (dtr & 1)
|
|
flag |= TIOCM_CTS;
|
|
if (dtr & 2)
|
|
flag |= TIOCM_DSR;
|
|
if (dtr & 4)
|
|
flag |= TIOCM_CD;
|
|
return flag;
|
|
}
|
|
|
|
static int moxa_tiocmset(struct tty_struct *tty, struct file *file,
|
|
unsigned int set, unsigned int clear)
|
|
{
|
|
struct moxa_port *ch = (struct moxa_port *) tty->driver_data;
|
|
int port;
|
|
int dtr, rts;
|
|
|
|
port = tty->index;
|
|
if ((port != MAX_PORTS) && (!ch))
|
|
return (-EINVAL);
|
|
|
|
MoxaPortGetLineOut(ch->port, &dtr, &rts);
|
|
if (set & TIOCM_RTS)
|
|
rts = 1;
|
|
if (set & TIOCM_DTR)
|
|
dtr = 1;
|
|
if (clear & TIOCM_RTS)
|
|
rts = 0;
|
|
if (clear & TIOCM_DTR)
|
|
dtr = 0;
|
|
MoxaPortLineCtrl(ch->port, dtr, rts);
|
|
return 0;
|
|
}
|
|
|
|
static int moxa_ioctl(struct tty_struct *tty, struct file *file,
|
|
unsigned int cmd, unsigned long arg)
|
|
{
|
|
struct moxa_port *ch = (struct moxa_port *) tty->driver_data;
|
|
register int port;
|
|
void __user *argp = (void __user *)arg;
|
|
int retval;
|
|
|
|
port = tty->index;
|
|
if ((port != MAX_PORTS) && (!ch))
|
|
return (-EINVAL);
|
|
|
|
switch (cmd) {
|
|
case TCSBRK: /* SVID version: non-zero arg --> no break */
|
|
retval = tty_check_change(tty);
|
|
if (retval)
|
|
return (retval);
|
|
moxa_setup_empty_event(tty);
|
|
tty_wait_until_sent(tty, 0);
|
|
if (!arg)
|
|
MoxaPortSendBreak(ch->port, 0);
|
|
return (0);
|
|
case TCSBRKP: /* support for POSIX tcsendbreak() */
|
|
retval = tty_check_change(tty);
|
|
if (retval)
|
|
return (retval);
|
|
moxa_setup_empty_event(tty);
|
|
tty_wait_until_sent(tty, 0);
|
|
MoxaPortSendBreak(ch->port, arg);
|
|
return (0);
|
|
case TIOCGSOFTCAR:
|
|
return put_user(C_CLOCAL(tty) ? 1 : 0, (unsigned long __user *) argp);
|
|
case TIOCSSOFTCAR:
|
|
if(get_user(retval, (unsigned long __user *) argp))
|
|
return -EFAULT;
|
|
arg = retval;
|
|
tty->termios->c_cflag = ((tty->termios->c_cflag & ~CLOCAL) |
|
|
(arg ? CLOCAL : 0));
|
|
if (C_CLOCAL(tty))
|
|
ch->asyncflags &= ~ASYNC_CHECK_CD;
|
|
else
|
|
ch->asyncflags |= ASYNC_CHECK_CD;
|
|
return (0);
|
|
case TIOCGSERIAL:
|
|
return moxa_get_serial_info(ch, argp);
|
|
|
|
case TIOCSSERIAL:
|
|
return moxa_set_serial_info(ch, argp);
|
|
default:
|
|
retval = MoxaDriverIoctl(cmd, arg, port);
|
|
}
|
|
return (retval);
|
|
}
|
|
|
|
static void moxa_throttle(struct tty_struct *tty)
|
|
{
|
|
struct moxa_port *ch = (struct moxa_port *) tty->driver_data;
|
|
|
|
ch->statusflags |= THROTTLE;
|
|
}
|
|
|
|
static void moxa_unthrottle(struct tty_struct *tty)
|
|
{
|
|
struct moxa_port *ch = (struct moxa_port *) tty->driver_data;
|
|
|
|
ch->statusflags &= ~THROTTLE;
|
|
}
|
|
|
|
static void moxa_set_termios(struct tty_struct *tty,
|
|
struct ktermios *old_termios)
|
|
{
|
|
struct moxa_port *ch = (struct moxa_port *) tty->driver_data;
|
|
|
|
if (ch == NULL)
|
|
return;
|
|
moxa_set_tty_param(tty);
|
|
if (!(old_termios->c_cflag & CLOCAL) &&
|
|
(tty->termios->c_cflag & CLOCAL))
|
|
wake_up_interruptible(&ch->open_wait);
|
|
}
|
|
|
|
static void moxa_stop(struct tty_struct *tty)
|
|
{
|
|
struct moxa_port *ch = (struct moxa_port *) tty->driver_data;
|
|
|
|
if (ch == NULL)
|
|
return;
|
|
MoxaPortTxDisable(ch->port);
|
|
ch->statusflags |= TXSTOPPED;
|
|
}
|
|
|
|
|
|
static void moxa_start(struct tty_struct *tty)
|
|
{
|
|
struct moxa_port *ch = (struct moxa_port *) tty->driver_data;
|
|
|
|
if (ch == NULL)
|
|
return;
|
|
|
|
if (!(ch->statusflags & TXSTOPPED))
|
|
return;
|
|
|
|
MoxaPortTxEnable(ch->port);
|
|
ch->statusflags &= ~TXSTOPPED;
|
|
}
|
|
|
|
static void moxa_hangup(struct tty_struct *tty)
|
|
{
|
|
struct moxa_port *ch = (struct moxa_port *) tty->driver_data;
|
|
|
|
moxa_flush_buffer(tty);
|
|
moxa_shut_down(ch);
|
|
ch->event = 0;
|
|
ch->count = 0;
|
|
ch->asyncflags &= ~ASYNC_NORMAL_ACTIVE;
|
|
ch->tty = NULL;
|
|
wake_up_interruptible(&ch->open_wait);
|
|
}
|
|
|
|
static void moxa_poll(unsigned long ignored)
|
|
{
|
|
register int card;
|
|
struct moxa_port *ch;
|
|
struct tty_struct *tp;
|
|
int i, ports;
|
|
|
|
del_timer(&moxaTimer);
|
|
|
|
if (MoxaDriverPoll() < 0) {
|
|
mod_timer(&moxaTimer, jiffies + HZ / 50);
|
|
return;
|
|
}
|
|
for (card = 0; card < MAX_BOARDS; card++) {
|
|
if ((ports = MoxaPortsOfCard(card)) <= 0)
|
|
continue;
|
|
ch = &moxa_ports[card * MAX_PORTS_PER_BOARD];
|
|
for (i = 0; i < ports; i++, ch++) {
|
|
if ((ch->asyncflags & ASYNC_INITIALIZED) == 0)
|
|
continue;
|
|
if (!(ch->statusflags & THROTTLE) &&
|
|
(MoxaPortRxQueue(ch->port) > 0))
|
|
moxa_receive_data(ch);
|
|
if ((tp = ch->tty) == 0)
|
|
continue;
|
|
if (ch->statusflags & LOWWAIT) {
|
|
if (MoxaPortTxQueue(ch->port) <= WAKEUP_CHARS) {
|
|
if (!tp->stopped) {
|
|
ch->statusflags &= ~LOWWAIT;
|
|
tty_wakeup(tp);
|
|
}
|
|
}
|
|
}
|
|
if (!I_IGNBRK(tp) && (MoxaPortResetBrkCnt(ch->port) > 0)) {
|
|
tty_insert_flip_char(tp, 0, TTY_BREAK);
|
|
tty_schedule_flip(tp);
|
|
}
|
|
if (MoxaPortDCDChange(ch->port)) {
|
|
if (ch->asyncflags & ASYNC_CHECK_CD) {
|
|
if (MoxaPortDCDON(ch->port))
|
|
wake_up_interruptible(&ch->open_wait);
|
|
else {
|
|
tty_hangup(tp);
|
|
wake_up_interruptible(&ch->open_wait);
|
|
ch->asyncflags &= ~ASYNC_NORMAL_ACTIVE;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
mod_timer(&moxaTimer, jiffies + HZ / 50);
|
|
}
|
|
|
|
/******************************************************************************/
|
|
|
|
static void moxa_set_tty_param(struct tty_struct *tty)
|
|
{
|
|
register struct ktermios *ts;
|
|
struct moxa_port *ch;
|
|
int rts, cts, txflow, rxflow, xany;
|
|
|
|
ch = (struct moxa_port *) tty->driver_data;
|
|
ts = tty->termios;
|
|
if (ts->c_cflag & CLOCAL)
|
|
ch->asyncflags &= ~ASYNC_CHECK_CD;
|
|
else
|
|
ch->asyncflags |= ASYNC_CHECK_CD;
|
|
rts = cts = txflow = rxflow = xany = 0;
|
|
if (ts->c_cflag & CRTSCTS)
|
|
rts = cts = 1;
|
|
if (ts->c_iflag & IXON)
|
|
txflow = 1;
|
|
if (ts->c_iflag & IXOFF)
|
|
rxflow = 1;
|
|
if (ts->c_iflag & IXANY)
|
|
xany = 1;
|
|
MoxaPortFlowCtrl(ch->port, rts, cts, txflow, rxflow, xany);
|
|
MoxaPortSetTermio(ch->port, ts, tty_get_baud_rate(tty));
|
|
}
|
|
|
|
static int moxa_block_till_ready(struct tty_struct *tty, struct file *filp,
|
|
struct moxa_port *ch)
|
|
{
|
|
DECLARE_WAITQUEUE(wait,current);
|
|
unsigned long flags;
|
|
int retval;
|
|
int do_clocal = C_CLOCAL(tty);
|
|
|
|
/*
|
|
* If the device is in the middle of being closed, then block
|
|
* until it's done, and then try again.
|
|
*/
|
|
if (tty_hung_up_p(filp) || (ch->asyncflags & ASYNC_CLOSING)) {
|
|
if (ch->asyncflags & ASYNC_CLOSING)
|
|
wait_for_completion_interruptible(&ch->close_wait);
|
|
#ifdef SERIAL_DO_RESTART
|
|
if (ch->asyncflags & ASYNC_HUP_NOTIFY)
|
|
return (-EAGAIN);
|
|
else
|
|
return (-ERESTARTSYS);
|
|
#else
|
|
return (-EAGAIN);
|
|
#endif
|
|
}
|
|
/*
|
|
* If non-blocking mode is set, then make the check up front
|
|
* and then exit.
|
|
*/
|
|
if (filp->f_flags & O_NONBLOCK) {
|
|
ch->asyncflags |= ASYNC_NORMAL_ACTIVE;
|
|
return (0);
|
|
}
|
|
/*
|
|
* Block waiting for the carrier detect and the line to become free
|
|
*/
|
|
retval = 0;
|
|
add_wait_queue(&ch->open_wait, &wait);
|
|
pr_debug("block_til_ready before block: ttys%d, count = %d\n",
|
|
ch->port, ch->count);
|
|
spin_lock_irqsave(&moxa_lock, flags);
|
|
if (!tty_hung_up_p(filp))
|
|
ch->count--;
|
|
ch->blocked_open++;
|
|
spin_unlock_irqrestore(&moxa_lock, flags);
|
|
|
|
while (1) {
|
|
set_current_state(TASK_INTERRUPTIBLE);
|
|
if (tty_hung_up_p(filp) ||
|
|
!(ch->asyncflags & ASYNC_INITIALIZED)) {
|
|
#ifdef SERIAL_DO_RESTART
|
|
if (ch->asyncflags & ASYNC_HUP_NOTIFY)
|
|
retval = -EAGAIN;
|
|
else
|
|
retval = -ERESTARTSYS;
|
|
#else
|
|
retval = -EAGAIN;
|
|
#endif
|
|
break;
|
|
}
|
|
if (!(ch->asyncflags & ASYNC_CLOSING) && (do_clocal ||
|
|
MoxaPortDCDON(ch->port)))
|
|
break;
|
|
|
|
if (signal_pending(current)) {
|
|
retval = -ERESTARTSYS;
|
|
break;
|
|
}
|
|
schedule();
|
|
}
|
|
set_current_state(TASK_RUNNING);
|
|
remove_wait_queue(&ch->open_wait, &wait);
|
|
|
|
spin_lock_irqsave(&moxa_lock, flags);
|
|
if (!tty_hung_up_p(filp))
|
|
ch->count++;
|
|
ch->blocked_open--;
|
|
spin_unlock_irqrestore(&moxa_lock, flags);
|
|
pr_debug("block_til_ready after blocking: ttys%d, count = %d\n",
|
|
ch->port, ch->count);
|
|
if (retval)
|
|
return (retval);
|
|
/* FIXME: review to see if we need to use set_bit on these */
|
|
ch->asyncflags |= ASYNC_NORMAL_ACTIVE;
|
|
return 0;
|
|
}
|
|
|
|
static void moxa_setup_empty_event(struct tty_struct *tty)
|
|
{
|
|
struct moxa_port *ch = tty->driver_data;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&moxa_lock, flags);
|
|
ch->statusflags |= EMPTYWAIT;
|
|
mod_timer(&moxa_ports[ch->port].emptyTimer, jiffies + HZ);
|
|
spin_unlock_irqrestore(&moxa_lock, flags);
|
|
}
|
|
|
|
static void moxa_check_xmit_empty(unsigned long data)
|
|
{
|
|
struct moxa_port *ch;
|
|
|
|
ch = (struct moxa_port *) data;
|
|
if (ch->tty && (ch->statusflags & EMPTYWAIT)) {
|
|
if (MoxaPortTxQueue(ch->port) == 0) {
|
|
ch->statusflags &= ~EMPTYWAIT;
|
|
tty_wakeup(ch->tty);
|
|
return;
|
|
}
|
|
mod_timer(&moxa_ports[ch->port].emptyTimer,
|
|
round_jiffies(jiffies + HZ));
|
|
} else
|
|
ch->statusflags &= ~EMPTYWAIT;
|
|
}
|
|
|
|
static void moxa_shut_down(struct moxa_port *ch)
|
|
{
|
|
struct tty_struct *tp;
|
|
|
|
if (!(ch->asyncflags & ASYNC_INITIALIZED))
|
|
return;
|
|
|
|
tp = ch->tty;
|
|
|
|
MoxaPortDisable(ch->port);
|
|
|
|
/*
|
|
* If we're a modem control device and HUPCL is on, drop RTS & DTR.
|
|
*/
|
|
if (tp->termios->c_cflag & HUPCL)
|
|
MoxaPortLineCtrl(ch->port, 0, 0);
|
|
|
|
ch->asyncflags &= ~ASYNC_INITIALIZED;
|
|
}
|
|
|
|
static void moxa_receive_data(struct moxa_port *ch)
|
|
{
|
|
struct tty_struct *tp;
|
|
struct ktermios *ts;
|
|
unsigned long flags;
|
|
|
|
ts = NULL;
|
|
tp = ch->tty;
|
|
if (tp)
|
|
ts = tp->termios;
|
|
/**************************************************
|
|
if ( !tp || !ts || !(ts->c_cflag & CREAD) ) {
|
|
*****************************************************/
|
|
if (!tp || !ts) {
|
|
MoxaPortFlushData(ch->port, 0);
|
|
return;
|
|
}
|
|
spin_lock_irqsave(&moxa_lock, flags);
|
|
MoxaPortReadData(ch->port, tp);
|
|
spin_unlock_irqrestore(&moxa_lock, flags);
|
|
tty_schedule_flip(tp);
|
|
}
|
|
|
|
#define Magic_code 0x404
|
|
|
|
/*
|
|
* System Configuration
|
|
*/
|
|
/*
|
|
* for C218 BIOS initialization
|
|
*/
|
|
#define C218_ConfBase 0x800
|
|
#define C218_status (C218_ConfBase + 0) /* BIOS running status */
|
|
#define C218_diag (C218_ConfBase + 2) /* diagnostic status */
|
|
#define C218_key (C218_ConfBase + 4) /* WORD (0x218 for C218) */
|
|
#define C218DLoad_len (C218_ConfBase + 6) /* WORD */
|
|
#define C218check_sum (C218_ConfBase + 8) /* BYTE */
|
|
#define C218chksum_ok (C218_ConfBase + 0x0a) /* BYTE (1:ok) */
|
|
#define C218_TestRx (C218_ConfBase + 0x10) /* 8 bytes for 8 ports */
|
|
#define C218_TestTx (C218_ConfBase + 0x18) /* 8 bytes for 8 ports */
|
|
#define C218_RXerr (C218_ConfBase + 0x20) /* 8 bytes for 8 ports */
|
|
#define C218_ErrFlag (C218_ConfBase + 0x28) /* 8 bytes for 8 ports */
|
|
|
|
#define C218_LoadBuf 0x0F00
|
|
#define C218_KeyCode 0x218
|
|
#define CP204J_KeyCode 0x204
|
|
|
|
/*
|
|
* for C320 BIOS initialization
|
|
*/
|
|
#define C320_ConfBase 0x800
|
|
#define C320_LoadBuf 0x0f00
|
|
#define STS_init 0x05 /* for C320_status */
|
|
|
|
#define C320_status C320_ConfBase + 0 /* BIOS running status */
|
|
#define C320_diag C320_ConfBase + 2 /* diagnostic status */
|
|
#define C320_key C320_ConfBase + 4 /* WORD (0320H for C320) */
|
|
#define C320DLoad_len C320_ConfBase + 6 /* WORD */
|
|
#define C320check_sum C320_ConfBase + 8 /* WORD */
|
|
#define C320chksum_ok C320_ConfBase + 0x0a /* WORD (1:ok) */
|
|
#define C320bapi_len C320_ConfBase + 0x0c /* WORD */
|
|
#define C320UART_no C320_ConfBase + 0x0e /* WORD */
|
|
|
|
#define C320_KeyCode 0x320
|
|
|
|
#define FixPage_addr 0x0000 /* starting addr of static page */
|
|
#define DynPage_addr 0x2000 /* starting addr of dynamic page */
|
|
#define C218_start 0x3000 /* starting addr of C218 BIOS prg */
|
|
#define Control_reg 0x1ff0 /* select page and reset control */
|
|
#define HW_reset 0x80
|
|
|
|
/*
|
|
* Function Codes
|
|
*/
|
|
#define FC_CardReset 0x80
|
|
#define FC_ChannelReset 1 /* C320 firmware not supported */
|
|
#define FC_EnableCH 2
|
|
#define FC_DisableCH 3
|
|
#define FC_SetParam 4
|
|
#define FC_SetMode 5
|
|
#define FC_SetRate 6
|
|
#define FC_LineControl 7
|
|
#define FC_LineStatus 8
|
|
#define FC_XmitControl 9
|
|
#define FC_FlushQueue 10
|
|
#define FC_SendBreak 11
|
|
#define FC_StopBreak 12
|
|
#define FC_LoopbackON 13
|
|
#define FC_LoopbackOFF 14
|
|
#define FC_ClrIrqTable 15
|
|
#define FC_SendXon 16
|
|
#define FC_SetTermIrq 17 /* C320 firmware not supported */
|
|
#define FC_SetCntIrq 18 /* C320 firmware not supported */
|
|
#define FC_SetBreakIrq 19
|
|
#define FC_SetLineIrq 20
|
|
#define FC_SetFlowCtl 21
|
|
#define FC_GenIrq 22
|
|
#define FC_InCD180 23
|
|
#define FC_OutCD180 24
|
|
#define FC_InUARTreg 23
|
|
#define FC_OutUARTreg 24
|
|
#define FC_SetXonXoff 25
|
|
#define FC_OutCD180CCR 26
|
|
#define FC_ExtIQueue 27
|
|
#define FC_ExtOQueue 28
|
|
#define FC_ClrLineIrq 29
|
|
#define FC_HWFlowCtl 30
|
|
#define FC_GetClockRate 35
|
|
#define FC_SetBaud 36
|
|
#define FC_SetDataMode 41
|
|
#define FC_GetCCSR 43
|
|
#define FC_GetDataError 45
|
|
#define FC_RxControl 50
|
|
#define FC_ImmSend 51
|
|
#define FC_SetXonState 52
|
|
#define FC_SetXoffState 53
|
|
#define FC_SetRxFIFOTrig 54
|
|
#define FC_SetTxFIFOCnt 55
|
|
#define FC_UnixRate 56
|
|
#define FC_UnixResetTimer 57
|
|
|
|
#define RxFIFOTrig1 0
|
|
#define RxFIFOTrig4 1
|
|
#define RxFIFOTrig8 2
|
|
#define RxFIFOTrig14 3
|
|
|
|
/*
|
|
* Dual-Ported RAM
|
|
*/
|
|
#define DRAM_global 0
|
|
#define INT_data (DRAM_global + 0)
|
|
#define Config_base (DRAM_global + 0x108)
|
|
|
|
#define IRQindex (INT_data + 0)
|
|
#define IRQpending (INT_data + 4)
|
|
#define IRQtable (INT_data + 8)
|
|
|
|
/*
|
|
* Interrupt Status
|
|
*/
|
|
#define IntrRx 0x01 /* receiver data O.K. */
|
|
#define IntrTx 0x02 /* transmit buffer empty */
|
|
#define IntrFunc 0x04 /* function complete */
|
|
#define IntrBreak 0x08 /* received break */
|
|
#define IntrLine 0x10 /* line status change
|
|
for transmitter */
|
|
#define IntrIntr 0x20 /* received INTR code */
|
|
#define IntrQuit 0x40 /* received QUIT code */
|
|
#define IntrEOF 0x80 /* received EOF code */
|
|
|
|
#define IntrRxTrigger 0x100 /* rx data count reach tigger value */
|
|
#define IntrTxTrigger 0x200 /* tx data count below trigger value */
|
|
|
|
#define Magic_no (Config_base + 0)
|
|
#define Card_model_no (Config_base + 2)
|
|
#define Total_ports (Config_base + 4)
|
|
#define Module_cnt (Config_base + 8)
|
|
#define Module_no (Config_base + 10)
|
|
#define Timer_10ms (Config_base + 14)
|
|
#define Disable_IRQ (Config_base + 20)
|
|
#define TMS320_PORT1 (Config_base + 22)
|
|
#define TMS320_PORT2 (Config_base + 24)
|
|
#define TMS320_CLOCK (Config_base + 26)
|
|
|
|
/*
|
|
* DATA BUFFER in DRAM
|
|
*/
|
|
#define Extern_table 0x400 /* Base address of the external table
|
|
(24 words * 64) total 3K bytes
|
|
(24 words * 128) total 6K bytes */
|
|
#define Extern_size 0x60 /* 96 bytes */
|
|
#define RXrptr 0x00 /* read pointer for RX buffer */
|
|
#define RXwptr 0x02 /* write pointer for RX buffer */
|
|
#define TXrptr 0x04 /* read pointer for TX buffer */
|
|
#define TXwptr 0x06 /* write pointer for TX buffer */
|
|
#define HostStat 0x08 /* IRQ flag and general flag */
|
|
#define FlagStat 0x0A
|
|
#define FlowControl 0x0C /* B7 B6 B5 B4 B3 B2 B1 B0 */
|
|
/* x x x x | | | | */
|
|
/* | | | + CTS flow */
|
|
/* | | +--- RTS flow */
|
|
/* | +------ TX Xon/Xoff */
|
|
/* +--------- RX Xon/Xoff */
|
|
#define Break_cnt 0x0E /* received break count */
|
|
#define CD180TXirq 0x10 /* if non-0: enable TX irq */
|
|
#define RX_mask 0x12
|
|
#define TX_mask 0x14
|
|
#define Ofs_rxb 0x16
|
|
#define Ofs_txb 0x18
|
|
#define Page_rxb 0x1A
|
|
#define Page_txb 0x1C
|
|
#define EndPage_rxb 0x1E
|
|
#define EndPage_txb 0x20
|
|
#define Data_error 0x22
|
|
#define RxTrigger 0x28
|
|
#define TxTrigger 0x2a
|
|
|
|
#define rRXwptr 0x34
|
|
#define Low_water 0x36
|
|
|
|
#define FuncCode 0x40
|
|
#define FuncArg 0x42
|
|
#define FuncArg1 0x44
|
|
|
|
#define C218rx_size 0x2000 /* 8K bytes */
|
|
#define C218tx_size 0x8000 /* 32K bytes */
|
|
|
|
#define C218rx_mask (C218rx_size - 1)
|
|
#define C218tx_mask (C218tx_size - 1)
|
|
|
|
#define C320p8rx_size 0x2000
|
|
#define C320p8tx_size 0x8000
|
|
#define C320p8rx_mask (C320p8rx_size - 1)
|
|
#define C320p8tx_mask (C320p8tx_size - 1)
|
|
|
|
#define C320p16rx_size 0x2000
|
|
#define C320p16tx_size 0x4000
|
|
#define C320p16rx_mask (C320p16rx_size - 1)
|
|
#define C320p16tx_mask (C320p16tx_size - 1)
|
|
|
|
#define C320p24rx_size 0x2000
|
|
#define C320p24tx_size 0x2000
|
|
#define C320p24rx_mask (C320p24rx_size - 1)
|
|
#define C320p24tx_mask (C320p24tx_size - 1)
|
|
|
|
#define C320p32rx_size 0x1000
|
|
#define C320p32tx_size 0x1000
|
|
#define C320p32rx_mask (C320p32rx_size - 1)
|
|
#define C320p32tx_mask (C320p32tx_size - 1)
|
|
|
|
#define Page_size 0x2000
|
|
#define Page_mask (Page_size - 1)
|
|
#define C218rx_spage 3
|
|
#define C218tx_spage 4
|
|
#define C218rx_pageno 1
|
|
#define C218tx_pageno 4
|
|
#define C218buf_pageno 5
|
|
|
|
#define C320p8rx_spage 3
|
|
#define C320p8tx_spage 4
|
|
#define C320p8rx_pgno 1
|
|
#define C320p8tx_pgno 4
|
|
#define C320p8buf_pgno 5
|
|
|
|
#define C320p16rx_spage 3
|
|
#define C320p16tx_spage 4
|
|
#define C320p16rx_pgno 1
|
|
#define C320p16tx_pgno 2
|
|
#define C320p16buf_pgno 3
|
|
|
|
#define C320p24rx_spage 3
|
|
#define C320p24tx_spage 4
|
|
#define C320p24rx_pgno 1
|
|
#define C320p24tx_pgno 1
|
|
#define C320p24buf_pgno 2
|
|
|
|
#define C320p32rx_spage 3
|
|
#define C320p32tx_ofs C320p32rx_size
|
|
#define C320p32tx_spage 3
|
|
#define C320p32buf_pgno 1
|
|
|
|
/*
|
|
* Host Status
|
|
*/
|
|
#define WakeupRx 0x01
|
|
#define WakeupTx 0x02
|
|
#define WakeupBreak 0x08
|
|
#define WakeupLine 0x10
|
|
#define WakeupIntr 0x20
|
|
#define WakeupQuit 0x40
|
|
#define WakeupEOF 0x80 /* used in VTIME control */
|
|
#define WakeupRxTrigger 0x100
|
|
#define WakeupTxTrigger 0x200
|
|
/*
|
|
* Flag status
|
|
*/
|
|
#define Rx_over 0x01
|
|
#define Xoff_state 0x02
|
|
#define Tx_flowOff 0x04
|
|
#define Tx_enable 0x08
|
|
#define CTS_state 0x10
|
|
#define DSR_state 0x20
|
|
#define DCD_state 0x80
|
|
/*
|
|
* FlowControl
|
|
*/
|
|
#define CTS_FlowCtl 1
|
|
#define RTS_FlowCtl 2
|
|
#define Tx_FlowCtl 4
|
|
#define Rx_FlowCtl 8
|
|
#define IXM_IXANY 0x10
|
|
|
|
#define LowWater 128
|
|
|
|
#define DTR_ON 1
|
|
#define RTS_ON 2
|
|
#define CTS_ON 1
|
|
#define DSR_ON 2
|
|
#define DCD_ON 8
|
|
|
|
/* mode definition */
|
|
#define MX_CS8 0x03
|
|
#define MX_CS7 0x02
|
|
#define MX_CS6 0x01
|
|
#define MX_CS5 0x00
|
|
|
|
#define MX_STOP1 0x00
|
|
#define MX_STOP15 0x04
|
|
#define MX_STOP2 0x08
|
|
|
|
#define MX_PARNONE 0x00
|
|
#define MX_PAREVEN 0x40
|
|
#define MX_PARODD 0xC0
|
|
|
|
/*
|
|
* Query
|
|
*/
|
|
|
|
struct mon_str {
|
|
int tick;
|
|
int rxcnt[MAX_PORTS];
|
|
int txcnt[MAX_PORTS];
|
|
};
|
|
|
|
#define DCD_changed 0x01
|
|
#define DCD_oldstate 0x80
|
|
|
|
static unsigned char moxaBuff[10240];
|
|
static int moxaLowWaterChk;
|
|
static int moxaCard;
|
|
static struct mon_str moxaLog;
|
|
static int moxaFuncTout = HZ / 2;
|
|
|
|
static void moxafunc(void __iomem *, int, ushort);
|
|
static void moxa_wait_finish(void __iomem *);
|
|
static void moxa_low_water_check(void __iomem *);
|
|
static int moxaloadbios(int, unsigned char __user *, int);
|
|
static int moxafindcard(int);
|
|
static int moxaload320b(int, unsigned char __user *, int);
|
|
static int moxaloadcode(int, unsigned char __user *, int);
|
|
static int moxaloadc218(int, void __iomem *, int);
|
|
static int moxaloadc320(int, void __iomem *, int, int *);
|
|
|
|
/*****************************************************************************
|
|
* Driver level functions: *
|
|
* 1. MoxaDriverInit(void); *
|
|
* 2. MoxaDriverIoctl(unsigned int cmd, unsigned long arg, int port); *
|
|
* 3. MoxaDriverPoll(void); *
|
|
*****************************************************************************/
|
|
void MoxaDriverInit(void)
|
|
{
|
|
struct moxa_port *p;
|
|
unsigned int i;
|
|
|
|
moxaFuncTout = HZ / 2; /* 500 mini-seconds */
|
|
moxaCard = 0;
|
|
moxaLog.tick = 0;
|
|
moxaLowWaterChk = 0;
|
|
for (i = 0; i < MAX_PORTS; i++) {
|
|
p = &moxa_ports[i];
|
|
p->chkPort = 0;
|
|
p->lowChkFlag = 0;
|
|
p->lineCtrl = 0;
|
|
moxaLog.rxcnt[i] = 0;
|
|
moxaLog.txcnt[i] = 0;
|
|
}
|
|
}
|
|
|
|
#define MOXA 0x400
|
|
#define MOXA_GET_IQUEUE (MOXA + 1) /* get input buffered count */
|
|
#define MOXA_GET_OQUEUE (MOXA + 2) /* get output buffered count */
|
|
#define MOXA_INIT_DRIVER (MOXA + 6) /* moxaCard=0 */
|
|
#define MOXA_LOAD_BIOS (MOXA + 9) /* download BIOS */
|
|
#define MOXA_FIND_BOARD (MOXA + 10) /* Check if MOXA card exist? */
|
|
#define MOXA_LOAD_C320B (MOXA + 11) /* download 320B firmware */
|
|
#define MOXA_LOAD_CODE (MOXA + 12) /* download firmware */
|
|
#define MOXA_GETDATACOUNT (MOXA + 23)
|
|
#define MOXA_GET_IOQUEUE (MOXA + 27)
|
|
#define MOXA_FLUSH_QUEUE (MOXA + 28)
|
|
#define MOXA_GET_CONF (MOXA + 35) /* configuration */
|
|
#define MOXA_GET_MAJOR (MOXA + 63)
|
|
#define MOXA_GET_CUMAJOR (MOXA + 64)
|
|
#define MOXA_GETMSTATUS (MOXA + 65)
|
|
|
|
struct dl_str {
|
|
char __user *buf;
|
|
int len;
|
|
int cardno;
|
|
};
|
|
|
|
static struct dl_str dltmp;
|
|
|
|
void MoxaPortFlushData(int port, int mode)
|
|
{
|
|
void __iomem *ofsAddr;
|
|
if ((mode < 0) || (mode > 2))
|
|
return;
|
|
ofsAddr = moxa_ports[port].tableAddr;
|
|
moxafunc(ofsAddr, FC_FlushQueue, mode);
|
|
if (mode != 1) {
|
|
moxa_ports[port].lowChkFlag = 0;
|
|
moxa_low_water_check(ofsAddr);
|
|
}
|
|
}
|
|
|
|
int MoxaDriverIoctl(unsigned int cmd, unsigned long arg, int port)
|
|
{
|
|
int i;
|
|
int status;
|
|
int MoxaPortTxQueue(int), MoxaPortRxQueue(int);
|
|
void __user *argp = (void __user *)arg;
|
|
|
|
if (port == MAX_PORTS) {
|
|
if ((cmd != MOXA_GET_CONF) && (cmd != MOXA_INIT_DRIVER) &&
|
|
(cmd != MOXA_LOAD_BIOS) && (cmd != MOXA_FIND_BOARD) && (cmd != MOXA_LOAD_C320B) &&
|
|
(cmd != MOXA_LOAD_CODE) && (cmd != MOXA_GETDATACOUNT) &&
|
|
(cmd != MOXA_GET_IOQUEUE) && (cmd != MOXA_GET_MAJOR) &&
|
|
(cmd != MOXA_GET_CUMAJOR) && (cmd != MOXA_GETMSTATUS))
|
|
return (-EINVAL);
|
|
}
|
|
switch (cmd) {
|
|
case MOXA_GET_CONF:
|
|
if(copy_to_user(argp, &moxa_boards, MAX_BOARDS *
|
|
sizeof(struct moxa_board_conf)))
|
|
return -EFAULT;
|
|
return (0);
|
|
case MOXA_INIT_DRIVER:
|
|
if ((int) arg == 0x404)
|
|
MoxaDriverInit();
|
|
return (0);
|
|
case MOXA_GETDATACOUNT:
|
|
moxaLog.tick = jiffies;
|
|
if(copy_to_user(argp, &moxaLog, sizeof(struct mon_str)))
|
|
return -EFAULT;
|
|
return (0);
|
|
case MOXA_FLUSH_QUEUE:
|
|
MoxaPortFlushData(port, arg);
|
|
return (0);
|
|
case MOXA_GET_IOQUEUE: {
|
|
struct moxaq_str __user *argm = argp;
|
|
struct moxaq_str tmp;
|
|
|
|
for (i = 0; i < MAX_PORTS; i++, argm++) {
|
|
memset(&tmp, 0, sizeof(tmp));
|
|
if (moxa_ports[i].chkPort) {
|
|
tmp.inq = MoxaPortRxQueue(i);
|
|
tmp.outq = MoxaPortTxQueue(i);
|
|
}
|
|
if (copy_to_user(argm, &tmp, sizeof(tmp)))
|
|
return -EFAULT;
|
|
}
|
|
return (0);
|
|
} case MOXA_GET_OQUEUE:
|
|
i = MoxaPortTxQueue(port);
|
|
return put_user(i, (unsigned long __user *)argp);
|
|
case MOXA_GET_IQUEUE:
|
|
i = MoxaPortRxQueue(port);
|
|
return put_user(i, (unsigned long __user *)argp);
|
|
case MOXA_GET_MAJOR:
|
|
if(copy_to_user(argp, &ttymajor, sizeof(int)))
|
|
return -EFAULT;
|
|
return 0;
|
|
case MOXA_GET_CUMAJOR:
|
|
i = 0;
|
|
if(copy_to_user(argp, &i, sizeof(int)))
|
|
return -EFAULT;
|
|
return 0;
|
|
case MOXA_GETMSTATUS: {
|
|
struct mxser_mstatus __user *argm = argp;
|
|
struct mxser_mstatus tmp;
|
|
struct moxa_port *p;
|
|
|
|
for (i = 0; i < MAX_PORTS; i++, argm++) {
|
|
p = &moxa_ports[i];
|
|
memset(&tmp, 0, sizeof(tmp));
|
|
if (!p->chkPort) {
|
|
goto copy;
|
|
} else {
|
|
status = MoxaPortLineStatus(p->port);
|
|
if (status & 1)
|
|
tmp.cts = 1;
|
|
if (status & 2)
|
|
tmp.dsr = 1;
|
|
if (status & 4)
|
|
tmp.dcd = 1;
|
|
}
|
|
|
|
if (!p->tty || !p->tty->termios)
|
|
tmp.cflag = p->cflag;
|
|
else
|
|
tmp.cflag = p->tty->termios->c_cflag;
|
|
copy:
|
|
if (copy_to_user(argm, &tmp, sizeof(tmp)))
|
|
return -EFAULT;
|
|
}
|
|
return 0;
|
|
} default:
|
|
return (-ENOIOCTLCMD);
|
|
case MOXA_LOAD_BIOS:
|
|
case MOXA_FIND_BOARD:
|
|
case MOXA_LOAD_C320B:
|
|
case MOXA_LOAD_CODE:
|
|
if (!capable(CAP_SYS_RAWIO))
|
|
return -EPERM;
|
|
break;
|
|
}
|
|
|
|
if(copy_from_user(&dltmp, argp, sizeof(struct dl_str)))
|
|
return -EFAULT;
|
|
if(dltmp.cardno < 0 || dltmp.cardno >= MAX_BOARDS || dltmp.len < 0)
|
|
return -EINVAL;
|
|
|
|
switch(cmd)
|
|
{
|
|
case MOXA_LOAD_BIOS:
|
|
i = moxaloadbios(dltmp.cardno, dltmp.buf, dltmp.len);
|
|
return (i);
|
|
case MOXA_FIND_BOARD:
|
|
return moxafindcard(dltmp.cardno);
|
|
case MOXA_LOAD_C320B:
|
|
moxaload320b(dltmp.cardno, dltmp.buf, dltmp.len);
|
|
default: /* to keep gcc happy */
|
|
return (0);
|
|
case MOXA_LOAD_CODE:
|
|
i = moxaloadcode(dltmp.cardno, dltmp.buf, dltmp.len);
|
|
if (i == -1)
|
|
return (-EFAULT);
|
|
return (i);
|
|
|
|
}
|
|
}
|
|
|
|
int MoxaDriverPoll(void)
|
|
{
|
|
struct moxa_board_conf *brd;
|
|
register ushort temp;
|
|
register int card;
|
|
void __iomem *ofsAddr;
|
|
void __iomem *ip;
|
|
int port, p, ports;
|
|
|
|
if (moxaCard == 0)
|
|
return (-1);
|
|
for (card = 0; card < MAX_BOARDS; card++) {
|
|
brd = &moxa_boards[card];
|
|
if (brd->loadstat == 0)
|
|
continue;
|
|
if ((ports = brd->numPorts) == 0)
|
|
continue;
|
|
if (readb(brd->intPend) == 0xff) {
|
|
ip = brd->intTable + readb(brd->intNdx);
|
|
p = card * MAX_PORTS_PER_BOARD;
|
|
ports <<= 1;
|
|
for (port = 0; port < ports; port += 2, p++) {
|
|
if ((temp = readw(ip + port)) != 0) {
|
|
writew(0, ip + port);
|
|
ofsAddr = moxa_ports[p].tableAddr;
|
|
if (temp & IntrTx)
|
|
writew(readw(ofsAddr + HostStat) & ~WakeupTx, ofsAddr + HostStat);
|
|
if (temp & IntrBreak) {
|
|
moxa_ports[p].breakCnt++;
|
|
}
|
|
if (temp & IntrLine) {
|
|
if (readb(ofsAddr + FlagStat) & DCD_state) {
|
|
if ((moxa_ports[p].DCDState & DCD_oldstate) == 0)
|
|
moxa_ports[p].DCDState = (DCD_oldstate |
|
|
DCD_changed);
|
|
} else {
|
|
if (moxa_ports[p].DCDState & DCD_oldstate)
|
|
moxa_ports[p].DCDState = DCD_changed;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
writeb(0, brd->intPend);
|
|
}
|
|
if (moxaLowWaterChk) {
|
|
p = card * MAX_PORTS_PER_BOARD;
|
|
for (port = 0; port < ports; port++, p++) {
|
|
if (moxa_ports[p].lowChkFlag) {
|
|
moxa_ports[p].lowChkFlag = 0;
|
|
ofsAddr = moxa_ports[p].tableAddr;
|
|
moxa_low_water_check(ofsAddr);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
moxaLowWaterChk = 0;
|
|
return (0);
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* Card level function: *
|
|
* 1. MoxaPortsOfCard(int cardno); *
|
|
*****************************************************************************/
|
|
int MoxaPortsOfCard(int cardno)
|
|
{
|
|
|
|
if (moxa_boards[cardno].boardType == 0)
|
|
return (0);
|
|
return (moxa_boards[cardno].numPorts);
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* Port level functions: *
|
|
* 1. MoxaPortIsValid(int port); *
|
|
* 2. MoxaPortEnable(int port); *
|
|
* 3. MoxaPortDisable(int port); *
|
|
* 4. MoxaPortGetMaxBaud(int port); *
|
|
* 6. MoxaPortSetBaud(int port, long baud); *
|
|
* 8. MoxaPortSetTermio(int port, unsigned char *termio); *
|
|
* 9. MoxaPortGetLineOut(int port, int *dtrState, int *rtsState); *
|
|
* 10. MoxaPortLineCtrl(int port, int dtrState, int rtsState); *
|
|
* 11. MoxaPortFlowCtrl(int port, int rts, int cts, int rx, int tx,int xany); *
|
|
* 12. MoxaPortLineStatus(int port); *
|
|
* 13. MoxaPortDCDChange(int port); *
|
|
* 14. MoxaPortDCDON(int port); *
|
|
* 15. MoxaPortFlushData(int port, int mode); *
|
|
* 16. MoxaPortWriteData(int port, unsigned char * buffer, int length); *
|
|
* 17. MoxaPortReadData(int port, struct tty_struct *tty); *
|
|
* 20. MoxaPortTxQueue(int port); *
|
|
* 21. MoxaPortTxFree(int port); *
|
|
* 22. MoxaPortRxQueue(int port); *
|
|
* 24. MoxaPortTxDisable(int port); *
|
|
* 25. MoxaPortTxEnable(int port); *
|
|
* 27. MoxaPortResetBrkCnt(int port); *
|
|
* 30. MoxaPortSendBreak(int port, int ticks); *
|
|
*****************************************************************************/
|
|
/*
|
|
* Moxa Port Number Description:
|
|
*
|
|
* MOXA serial driver supports up to 4 MOXA-C218/C320 boards. And,
|
|
* the port number using in MOXA driver functions will be 0 to 31 for
|
|
* first MOXA board, 32 to 63 for second, 64 to 95 for third and 96
|
|
* to 127 for fourth. For example, if you setup three MOXA boards,
|
|
* first board is C218, second board is C320-16 and third board is
|
|
* C320-32. The port number of first board (C218 - 8 ports) is from
|
|
* 0 to 7. The port number of second board (C320 - 16 ports) is form
|
|
* 32 to 47. The port number of third board (C320 - 32 ports) is from
|
|
* 64 to 95. And those port numbers form 8 to 31, 48 to 63 and 96 to
|
|
* 127 will be invalid.
|
|
*
|
|
*
|
|
* Moxa Functions Description:
|
|
*
|
|
* Function 1: Driver initialization routine, this routine must be
|
|
* called when initialized driver.
|
|
* Syntax:
|
|
* void MoxaDriverInit();
|
|
*
|
|
*
|
|
* Function 2: Moxa driver private IOCTL command processing.
|
|
* Syntax:
|
|
* int MoxaDriverIoctl(unsigned int cmd, unsigned long arg, int port);
|
|
*
|
|
* unsigned int cmd : IOCTL command
|
|
* unsigned long arg : IOCTL argument
|
|
* int port : port number (0 - 127)
|
|
*
|
|
* return: 0 (OK)
|
|
* -EINVAL
|
|
* -ENOIOCTLCMD
|
|
*
|
|
*
|
|
* Function 3: Moxa driver polling process routine.
|
|
* Syntax:
|
|
* int MoxaDriverPoll(void);
|
|
*
|
|
* return: 0 ; polling O.K.
|
|
* -1 : no any Moxa card.
|
|
*
|
|
*
|
|
* Function 4: Get the ports of this card.
|
|
* Syntax:
|
|
* int MoxaPortsOfCard(int cardno);
|
|
*
|
|
* int cardno : card number (0 - 3)
|
|
*
|
|
* return: 0 : this card is invalid
|
|
* 8/16/24/32
|
|
*
|
|
*
|
|
* Function 5: Check this port is valid or invalid
|
|
* Syntax:
|
|
* int MoxaPortIsValid(int port);
|
|
* int port : port number (0 - 127, ref port description)
|
|
*
|
|
* return: 0 : this port is invalid
|
|
* 1 : this port is valid
|
|
*
|
|
*
|
|
* Function 6: Enable this port to start Tx/Rx data.
|
|
* Syntax:
|
|
* void MoxaPortEnable(int port);
|
|
* int port : port number (0 - 127)
|
|
*
|
|
*
|
|
* Function 7: Disable this port
|
|
* Syntax:
|
|
* void MoxaPortDisable(int port);
|
|
* int port : port number (0 - 127)
|
|
*
|
|
*
|
|
* Function 8: Get the maximun available baud rate of this port.
|
|
* Syntax:
|
|
* long MoxaPortGetMaxBaud(int port);
|
|
* int port : port number (0 - 127)
|
|
*
|
|
* return: 0 : this port is invalid
|
|
* 38400/57600/115200 bps
|
|
*
|
|
*
|
|
* Function 10: Setting baud rate of this port.
|
|
* Syntax:
|
|
* long MoxaPortSetBaud(int port, long baud);
|
|
* int port : port number (0 - 127)
|
|
* long baud : baud rate (50 - 115200)
|
|
*
|
|
* return: 0 : this port is invalid or baud < 50
|
|
* 50 - 115200 : the real baud rate set to the port, if
|
|
* the argument baud is large than maximun
|
|
* available baud rate, the real setting
|
|
* baud rate will be the maximun baud rate.
|
|
*
|
|
*
|
|
* Function 12: Configure the port.
|
|
* Syntax:
|
|
* int MoxaPortSetTermio(int port, struct ktermios *termio, speed_t baud);
|
|
* int port : port number (0 - 127)
|
|
* struct ktermios * termio : termio structure pointer
|
|
* speed_t baud : baud rate
|
|
*
|
|
* return: -1 : this port is invalid or termio == NULL
|
|
* 0 : setting O.K.
|
|
*
|
|
*
|
|
* Function 13: Get the DTR/RTS state of this port.
|
|
* Syntax:
|
|
* int MoxaPortGetLineOut(int port, int *dtrState, int *rtsState);
|
|
* int port : port number (0 - 127)
|
|
* int * dtrState : pointer to INT to receive the current DTR
|
|
* state. (if NULL, this function will not
|
|
* write to this address)
|
|
* int * rtsState : pointer to INT to receive the current RTS
|
|
* state. (if NULL, this function will not
|
|
* write to this address)
|
|
*
|
|
* return: -1 : this port is invalid
|
|
* 0 : O.K.
|
|
*
|
|
*
|
|
* Function 14: Setting the DTR/RTS output state of this port.
|
|
* Syntax:
|
|
* void MoxaPortLineCtrl(int port, int dtrState, int rtsState);
|
|
* int port : port number (0 - 127)
|
|
* int dtrState : DTR output state (0: off, 1: on)
|
|
* int rtsState : RTS output state (0: off, 1: on)
|
|
*
|
|
*
|
|
* Function 15: Setting the flow control of this port.
|
|
* Syntax:
|
|
* void MoxaPortFlowCtrl(int port, int rtsFlow, int ctsFlow, int rxFlow,
|
|
* int txFlow,int xany);
|
|
* int port : port number (0 - 127)
|
|
* int rtsFlow : H/W RTS flow control (0: no, 1: yes)
|
|
* int ctsFlow : H/W CTS flow control (0: no, 1: yes)
|
|
* int rxFlow : S/W Rx XON/XOFF flow control (0: no, 1: yes)
|
|
* int txFlow : S/W Tx XON/XOFF flow control (0: no, 1: yes)
|
|
* int xany : S/W XANY flow control (0: no, 1: yes)
|
|
*
|
|
*
|
|
* Function 16: Get ths line status of this port
|
|
* Syntax:
|
|
* int MoxaPortLineStatus(int port);
|
|
* int port : port number (0 - 127)
|
|
*
|
|
* return: Bit 0 - CTS state (0: off, 1: on)
|
|
* Bit 1 - DSR state (0: off, 1: on)
|
|
* Bit 2 - DCD state (0: off, 1: on)
|
|
*
|
|
*
|
|
* Function 17: Check the DCD state has changed since the last read
|
|
* of this function.
|
|
* Syntax:
|
|
* int MoxaPortDCDChange(int port);
|
|
* int port : port number (0 - 127)
|
|
*
|
|
* return: 0 : no changed
|
|
* 1 : DCD has changed
|
|
*
|
|
*
|
|
* Function 18: Check ths current DCD state is ON or not.
|
|
* Syntax:
|
|
* int MoxaPortDCDON(int port);
|
|
* int port : port number (0 - 127)
|
|
*
|
|
* return: 0 : DCD off
|
|
* 1 : DCD on
|
|
*
|
|
*
|
|
* Function 19: Flush the Rx/Tx buffer data of this port.
|
|
* Syntax:
|
|
* void MoxaPortFlushData(int port, int mode);
|
|
* int port : port number (0 - 127)
|
|
* int mode
|
|
* 0 : flush the Rx buffer
|
|
* 1 : flush the Tx buffer
|
|
* 2 : flush the Rx and Tx buffer
|
|
*
|
|
*
|
|
* Function 20: Write data.
|
|
* Syntax:
|
|
* int MoxaPortWriteData(int port, unsigned char * buffer, int length);
|
|
* int port : port number (0 - 127)
|
|
* unsigned char * buffer : pointer to write data buffer.
|
|
* int length : write data length
|
|
*
|
|
* return: 0 - length : real write data length
|
|
*
|
|
*
|
|
* Function 21: Read data.
|
|
* Syntax:
|
|
* int MoxaPortReadData(int port, struct tty_struct *tty);
|
|
* int port : port number (0 - 127)
|
|
* struct tty_struct *tty : tty for data
|
|
*
|
|
* return: 0 - length : real read data length
|
|
*
|
|
*
|
|
* Function 24: Get the Tx buffer current queued data bytes
|
|
* Syntax:
|
|
* int MoxaPortTxQueue(int port);
|
|
* int port : port number (0 - 127)
|
|
*
|
|
* return: .. : Tx buffer current queued data bytes
|
|
*
|
|
*
|
|
* Function 25: Get the Tx buffer current free space
|
|
* Syntax:
|
|
* int MoxaPortTxFree(int port);
|
|
* int port : port number (0 - 127)
|
|
*
|
|
* return: .. : Tx buffer current free space
|
|
*
|
|
*
|
|
* Function 26: Get the Rx buffer current queued data bytes
|
|
* Syntax:
|
|
* int MoxaPortRxQueue(int port);
|
|
* int port : port number (0 - 127)
|
|
*
|
|
* return: .. : Rx buffer current queued data bytes
|
|
*
|
|
*
|
|
* Function 28: Disable port data transmission.
|
|
* Syntax:
|
|
* void MoxaPortTxDisable(int port);
|
|
* int port : port number (0 - 127)
|
|
*
|
|
*
|
|
* Function 29: Enable port data transmission.
|
|
* Syntax:
|
|
* void MoxaPortTxEnable(int port);
|
|
* int port : port number (0 - 127)
|
|
*
|
|
*
|
|
* Function 31: Get the received BREAK signal count and reset it.
|
|
* Syntax:
|
|
* int MoxaPortResetBrkCnt(int port);
|
|
* int port : port number (0 - 127)
|
|
*
|
|
* return: 0 - .. : BREAK signal count
|
|
*
|
|
*
|
|
* Function 34: Send out a BREAK signal.
|
|
* Syntax:
|
|
* void MoxaPortSendBreak(int port, int ms100);
|
|
* int port : port number (0 - 127)
|
|
* int ms100 : break signal time interval.
|
|
* unit: 100 mini-second. if ms100 == 0, it will
|
|
* send out a about 250 ms BREAK signal.
|
|
*
|
|
*/
|
|
int MoxaPortIsValid(int port)
|
|
{
|
|
|
|
if (moxaCard == 0)
|
|
return (0);
|
|
if (moxa_ports[port].chkPort == 0)
|
|
return (0);
|
|
return (1);
|
|
}
|
|
|
|
void MoxaPortEnable(int port)
|
|
{
|
|
void __iomem *ofsAddr;
|
|
int MoxaPortLineStatus(int);
|
|
short lowwater = 512;
|
|
|
|
ofsAddr = moxa_ports[port].tableAddr;
|
|
writew(lowwater, ofsAddr + Low_water);
|
|
moxa_ports[port].breakCnt = 0;
|
|
if ((moxa_boards[port / MAX_PORTS_PER_BOARD].boardType == MOXA_BOARD_C320_ISA) ||
|
|
(moxa_boards[port / MAX_PORTS_PER_BOARD].boardType == MOXA_BOARD_C320_PCI)) {
|
|
moxafunc(ofsAddr, FC_SetBreakIrq, 0);
|
|
} else {
|
|
writew(readw(ofsAddr + HostStat) | WakeupBreak, ofsAddr + HostStat);
|
|
}
|
|
|
|
moxafunc(ofsAddr, FC_SetLineIrq, Magic_code);
|
|
moxafunc(ofsAddr, FC_FlushQueue, 2);
|
|
|
|
moxafunc(ofsAddr, FC_EnableCH, Magic_code);
|
|
MoxaPortLineStatus(port);
|
|
}
|
|
|
|
void MoxaPortDisable(int port)
|
|
{
|
|
void __iomem *ofsAddr = moxa_ports[port].tableAddr;
|
|
|
|
moxafunc(ofsAddr, FC_SetFlowCtl, 0); /* disable flow control */
|
|
moxafunc(ofsAddr, FC_ClrLineIrq, Magic_code);
|
|
writew(0, ofsAddr + HostStat);
|
|
moxafunc(ofsAddr, FC_DisableCH, Magic_code);
|
|
}
|
|
|
|
long MoxaPortGetMaxBaud(int port)
|
|
{
|
|
if ((moxa_boards[port / MAX_PORTS_PER_BOARD].boardType == MOXA_BOARD_C320_ISA) ||
|
|
(moxa_boards[port / MAX_PORTS_PER_BOARD].boardType == MOXA_BOARD_C320_PCI))
|
|
return (460800L);
|
|
else
|
|
return (921600L);
|
|
}
|
|
|
|
|
|
long MoxaPortSetBaud(int port, long baud)
|
|
{
|
|
void __iomem *ofsAddr;
|
|
long max, clock;
|
|
unsigned int val;
|
|
|
|
if ((baud < 50L) || ((max = MoxaPortGetMaxBaud(port)) == 0))
|
|
return (0);
|
|
ofsAddr = moxa_ports[port].tableAddr;
|
|
if (baud > max)
|
|
baud = max;
|
|
if (max == 38400L)
|
|
clock = 614400L; /* for 9.8304 Mhz : max. 38400 bps */
|
|
else if (max == 57600L)
|
|
clock = 691200L; /* for 11.0592 Mhz : max. 57600 bps */
|
|
else
|
|
clock = 921600L; /* for 14.7456 Mhz : max. 115200 bps */
|
|
val = clock / baud;
|
|
moxafunc(ofsAddr, FC_SetBaud, val);
|
|
baud = clock / val;
|
|
moxa_ports[port].curBaud = baud;
|
|
return (baud);
|
|
}
|
|
|
|
int MoxaPortSetTermio(int port, struct ktermios *termio, speed_t baud)
|
|
{
|
|
void __iomem *ofsAddr;
|
|
tcflag_t cflag;
|
|
tcflag_t mode = 0;
|
|
|
|
if (moxa_ports[port].chkPort == 0 || termio == 0)
|
|
return (-1);
|
|
ofsAddr = moxa_ports[port].tableAddr;
|
|
cflag = termio->c_cflag; /* termio->c_cflag */
|
|
|
|
mode = termio->c_cflag & CSIZE;
|
|
if (mode == CS5)
|
|
mode = MX_CS5;
|
|
else if (mode == CS6)
|
|
mode = MX_CS6;
|
|
else if (mode == CS7)
|
|
mode = MX_CS7;
|
|
else if (mode == CS8)
|
|
mode = MX_CS8;
|
|
|
|
if (termio->c_cflag & CSTOPB) {
|
|
if (mode == MX_CS5)
|
|
mode |= MX_STOP15;
|
|
else
|
|
mode |= MX_STOP2;
|
|
} else
|
|
mode |= MX_STOP1;
|
|
|
|
if (termio->c_cflag & PARENB) {
|
|
if (termio->c_cflag & PARODD)
|
|
mode |= MX_PARODD;
|
|
else
|
|
mode |= MX_PAREVEN;
|
|
} else
|
|
mode |= MX_PARNONE;
|
|
|
|
moxafunc(ofsAddr, FC_SetDataMode, (ushort) mode);
|
|
|
|
if ((moxa_boards[port / MAX_PORTS_PER_BOARD].boardType == MOXA_BOARD_C320_ISA) ||
|
|
(moxa_boards[port / MAX_PORTS_PER_BOARD].boardType == MOXA_BOARD_C320_PCI)) {
|
|
if (baud >= 921600L)
|
|
return (-1);
|
|
}
|
|
MoxaPortSetBaud(port, baud);
|
|
|
|
if (termio->c_iflag & (IXON | IXOFF | IXANY)) {
|
|
writeb(termio->c_cc[VSTART], ofsAddr + FuncArg);
|
|
writeb(termio->c_cc[VSTOP], ofsAddr + FuncArg1);
|
|
writeb(FC_SetXonXoff, ofsAddr + FuncCode);
|
|
moxa_wait_finish(ofsAddr);
|
|
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
int MoxaPortGetLineOut(int port, int *dtrState, int *rtsState)
|
|
{
|
|
|
|
if (!MoxaPortIsValid(port))
|
|
return (-1);
|
|
if (dtrState) {
|
|
if (moxa_ports[port].lineCtrl & DTR_ON)
|
|
*dtrState = 1;
|
|
else
|
|
*dtrState = 0;
|
|
}
|
|
if (rtsState) {
|
|
if (moxa_ports[port].lineCtrl & RTS_ON)
|
|
*rtsState = 1;
|
|
else
|
|
*rtsState = 0;
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
void MoxaPortLineCtrl(int port, int dtr, int rts)
|
|
{
|
|
void __iomem *ofsAddr;
|
|
int mode;
|
|
|
|
ofsAddr = moxa_ports[port].tableAddr;
|
|
mode = 0;
|
|
if (dtr)
|
|
mode |= DTR_ON;
|
|
if (rts)
|
|
mode |= RTS_ON;
|
|
moxa_ports[port].lineCtrl = mode;
|
|
moxafunc(ofsAddr, FC_LineControl, mode);
|
|
}
|
|
|
|
void MoxaPortFlowCtrl(int port, int rts, int cts, int txflow, int rxflow, int txany)
|
|
{
|
|
void __iomem *ofsAddr;
|
|
int mode;
|
|
|
|
ofsAddr = moxa_ports[port].tableAddr;
|
|
mode = 0;
|
|
if (rts)
|
|
mode |= RTS_FlowCtl;
|
|
if (cts)
|
|
mode |= CTS_FlowCtl;
|
|
if (txflow)
|
|
mode |= Tx_FlowCtl;
|
|
if (rxflow)
|
|
mode |= Rx_FlowCtl;
|
|
if (txany)
|
|
mode |= IXM_IXANY;
|
|
moxafunc(ofsAddr, FC_SetFlowCtl, mode);
|
|
}
|
|
|
|
int MoxaPortLineStatus(int port)
|
|
{
|
|
void __iomem *ofsAddr;
|
|
int val;
|
|
|
|
ofsAddr = moxa_ports[port].tableAddr;
|
|
if ((moxa_boards[port / MAX_PORTS_PER_BOARD].boardType == MOXA_BOARD_C320_ISA) ||
|
|
(moxa_boards[port / MAX_PORTS_PER_BOARD].boardType == MOXA_BOARD_C320_PCI)) {
|
|
moxafunc(ofsAddr, FC_LineStatus, 0);
|
|
val = readw(ofsAddr + FuncArg);
|
|
} else {
|
|
val = readw(ofsAddr + FlagStat) >> 4;
|
|
}
|
|
val &= 0x0B;
|
|
if (val & 8) {
|
|
val |= 4;
|
|
if ((moxa_ports[port].DCDState & DCD_oldstate) == 0)
|
|
moxa_ports[port].DCDState = (DCD_oldstate | DCD_changed);
|
|
} else {
|
|
if (moxa_ports[port].DCDState & DCD_oldstate)
|
|
moxa_ports[port].DCDState = DCD_changed;
|
|
}
|
|
val &= 7;
|
|
return (val);
|
|
}
|
|
|
|
int MoxaPortDCDChange(int port)
|
|
{
|
|
int n;
|
|
|
|
if (moxa_ports[port].chkPort == 0)
|
|
return (0);
|
|
n = moxa_ports[port].DCDState;
|
|
moxa_ports[port].DCDState &= ~DCD_changed;
|
|
n &= DCD_changed;
|
|
return (n);
|
|
}
|
|
|
|
int MoxaPortDCDON(int port)
|
|
{
|
|
int n;
|
|
|
|
if (moxa_ports[port].chkPort == 0)
|
|
return (0);
|
|
if (moxa_ports[port].DCDState & DCD_oldstate)
|
|
n = 1;
|
|
else
|
|
n = 0;
|
|
return (n);
|
|
}
|
|
|
|
int MoxaPortWriteData(int port, unsigned char * buffer, int len)
|
|
{
|
|
int c, total, i;
|
|
ushort tail;
|
|
int cnt;
|
|
ushort head, tx_mask, spage, epage;
|
|
ushort pageno, pageofs, bufhead;
|
|
void __iomem *baseAddr, *ofsAddr, *ofs;
|
|
|
|
ofsAddr = moxa_ports[port].tableAddr;
|
|
baseAddr = moxa_boards[port / MAX_PORTS_PER_BOARD].basemem;
|
|
tx_mask = readw(ofsAddr + TX_mask);
|
|
spage = readw(ofsAddr + Page_txb);
|
|
epage = readw(ofsAddr + EndPage_txb);
|
|
tail = readw(ofsAddr + TXwptr);
|
|
head = readw(ofsAddr + TXrptr);
|
|
c = (head > tail) ? (head - tail - 1)
|
|
: (head - tail + tx_mask);
|
|
if (c > len)
|
|
c = len;
|
|
moxaLog.txcnt[port] += c;
|
|
total = c;
|
|
if (spage == epage) {
|
|
bufhead = readw(ofsAddr + Ofs_txb);
|
|
writew(spage, baseAddr + Control_reg);
|
|
while (c > 0) {
|
|
if (head > tail)
|
|
len = head - tail - 1;
|
|
else
|
|
len = tx_mask + 1 - tail;
|
|
len = (c > len) ? len : c;
|
|
ofs = baseAddr + DynPage_addr + bufhead + tail;
|
|
for (i = 0; i < len; i++)
|
|
writeb(*buffer++, ofs + i);
|
|
tail = (tail + len) & tx_mask;
|
|
c -= len;
|
|
}
|
|
writew(tail, ofsAddr + TXwptr);
|
|
} else {
|
|
len = c;
|
|
pageno = spage + (tail >> 13);
|
|
pageofs = tail & Page_mask;
|
|
do {
|
|
cnt = Page_size - pageofs;
|
|
if (cnt > c)
|
|
cnt = c;
|
|
c -= cnt;
|
|
writeb(pageno, baseAddr + Control_reg);
|
|
ofs = baseAddr + DynPage_addr + pageofs;
|
|
for (i = 0; i < cnt; i++)
|
|
writeb(*buffer++, ofs + i);
|
|
if (c == 0) {
|
|
writew((tail + len) & tx_mask, ofsAddr + TXwptr);
|
|
break;
|
|
}
|
|
if (++pageno == epage)
|
|
pageno = spage;
|
|
pageofs = 0;
|
|
} while (1);
|
|
}
|
|
writeb(1, ofsAddr + CD180TXirq); /* start to send */
|
|
return (total);
|
|
}
|
|
|
|
int MoxaPortReadData(int port, struct tty_struct *tty)
|
|
{
|
|
register ushort head, pageofs;
|
|
int i, count, cnt, len, total, remain;
|
|
ushort tail, rx_mask, spage, epage;
|
|
ushort pageno, bufhead;
|
|
void __iomem *baseAddr, *ofsAddr, *ofs;
|
|
|
|
ofsAddr = moxa_ports[port].tableAddr;
|
|
baseAddr = moxa_boards[port / MAX_PORTS_PER_BOARD].basemem;
|
|
head = readw(ofsAddr + RXrptr);
|
|
tail = readw(ofsAddr + RXwptr);
|
|
rx_mask = readw(ofsAddr + RX_mask);
|
|
spage = readw(ofsAddr + Page_rxb);
|
|
epage = readw(ofsAddr + EndPage_rxb);
|
|
count = (tail >= head) ? (tail - head)
|
|
: (tail - head + rx_mask + 1);
|
|
if (count == 0)
|
|
return 0;
|
|
|
|
total = count;
|
|
remain = count - total;
|
|
moxaLog.rxcnt[port] += total;
|
|
count = total;
|
|
if (spage == epage) {
|
|
bufhead = readw(ofsAddr + Ofs_rxb);
|
|
writew(spage, baseAddr + Control_reg);
|
|
while (count > 0) {
|
|
if (tail >= head)
|
|
len = tail - head;
|
|
else
|
|
len = rx_mask + 1 - head;
|
|
len = (count > len) ? len : count;
|
|
ofs = baseAddr + DynPage_addr + bufhead + head;
|
|
for (i = 0; i < len; i++)
|
|
tty_insert_flip_char(tty, readb(ofs + i), TTY_NORMAL);
|
|
head = (head + len) & rx_mask;
|
|
count -= len;
|
|
}
|
|
writew(head, ofsAddr + RXrptr);
|
|
} else {
|
|
len = count;
|
|
pageno = spage + (head >> 13);
|
|
pageofs = head & Page_mask;
|
|
do {
|
|
cnt = Page_size - pageofs;
|
|
if (cnt > count)
|
|
cnt = count;
|
|
count -= cnt;
|
|
writew(pageno, baseAddr + Control_reg);
|
|
ofs = baseAddr + DynPage_addr + pageofs;
|
|
for (i = 0; i < cnt; i++)
|
|
tty_insert_flip_char(tty, readb(ofs + i), TTY_NORMAL);
|
|
if (count == 0) {
|
|
writew((head + len) & rx_mask, ofsAddr + RXrptr);
|
|
break;
|
|
}
|
|
if (++pageno == epage)
|
|
pageno = spage;
|
|
pageofs = 0;
|
|
} while (1);
|
|
}
|
|
if ((readb(ofsAddr + FlagStat) & Xoff_state) && (remain < LowWater)) {
|
|
moxaLowWaterChk = 1;
|
|
moxa_ports[port].lowChkFlag = 1;
|
|
}
|
|
return (total);
|
|
}
|
|
|
|
|
|
int MoxaPortTxQueue(int port)
|
|
{
|
|
void __iomem *ofsAddr;
|
|
ushort rptr, wptr, mask;
|
|
int len;
|
|
|
|
ofsAddr = moxa_ports[port].tableAddr;
|
|
rptr = readw(ofsAddr + TXrptr);
|
|
wptr = readw(ofsAddr + TXwptr);
|
|
mask = readw(ofsAddr + TX_mask);
|
|
len = (wptr - rptr) & mask;
|
|
return (len);
|
|
}
|
|
|
|
int MoxaPortTxFree(int port)
|
|
{
|
|
void __iomem *ofsAddr;
|
|
ushort rptr, wptr, mask;
|
|
int len;
|
|
|
|
ofsAddr = moxa_ports[port].tableAddr;
|
|
rptr = readw(ofsAddr + TXrptr);
|
|
wptr = readw(ofsAddr + TXwptr);
|
|
mask = readw(ofsAddr + TX_mask);
|
|
len = mask - ((wptr - rptr) & mask);
|
|
return (len);
|
|
}
|
|
|
|
int MoxaPortRxQueue(int port)
|
|
{
|
|
void __iomem *ofsAddr;
|
|
ushort rptr, wptr, mask;
|
|
int len;
|
|
|
|
ofsAddr = moxa_ports[port].tableAddr;
|
|
rptr = readw(ofsAddr + RXrptr);
|
|
wptr = readw(ofsAddr + RXwptr);
|
|
mask = readw(ofsAddr + RX_mask);
|
|
len = (wptr - rptr) & mask;
|
|
return (len);
|
|
}
|
|
|
|
|
|
void MoxaPortTxDisable(int port)
|
|
{
|
|
void __iomem *ofsAddr;
|
|
|
|
ofsAddr = moxa_ports[port].tableAddr;
|
|
moxafunc(ofsAddr, FC_SetXoffState, Magic_code);
|
|
}
|
|
|
|
void MoxaPortTxEnable(int port)
|
|
{
|
|
void __iomem *ofsAddr;
|
|
|
|
ofsAddr = moxa_ports[port].tableAddr;
|
|
moxafunc(ofsAddr, FC_SetXonState, Magic_code);
|
|
}
|
|
|
|
|
|
int MoxaPortResetBrkCnt(int port)
|
|
{
|
|
ushort cnt;
|
|
cnt = moxa_ports[port].breakCnt;
|
|
moxa_ports[port].breakCnt = 0;
|
|
return (cnt);
|
|
}
|
|
|
|
|
|
void MoxaPortSendBreak(int port, int ms100)
|
|
{
|
|
void __iomem *ofsAddr;
|
|
|
|
ofsAddr = moxa_ports[port].tableAddr;
|
|
if (ms100) {
|
|
moxafunc(ofsAddr, FC_SendBreak, Magic_code);
|
|
msleep(ms100 * 10);
|
|
} else {
|
|
moxafunc(ofsAddr, FC_SendBreak, Magic_code);
|
|
msleep(250);
|
|
}
|
|
moxafunc(ofsAddr, FC_StopBreak, Magic_code);
|
|
}
|
|
|
|
static int moxa_get_serial_info(struct moxa_port *info,
|
|
struct serial_struct __user *retinfo)
|
|
{
|
|
struct serial_struct tmp;
|
|
|
|
memset(&tmp, 0, sizeof(tmp));
|
|
tmp.type = info->type;
|
|
tmp.line = info->port;
|
|
tmp.port = 0;
|
|
tmp.irq = 0;
|
|
tmp.flags = info->asyncflags;
|
|
tmp.baud_base = 921600;
|
|
tmp.close_delay = info->close_delay;
|
|
tmp.closing_wait = info->closing_wait;
|
|
tmp.custom_divisor = 0;
|
|
tmp.hub6 = 0;
|
|
if(copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
|
|
return -EFAULT;
|
|
return (0);
|
|
}
|
|
|
|
|
|
static int moxa_set_serial_info(struct moxa_port *info,
|
|
struct serial_struct __user *new_info)
|
|
{
|
|
struct serial_struct new_serial;
|
|
|
|
if(copy_from_user(&new_serial, new_info, sizeof(new_serial)))
|
|
return -EFAULT;
|
|
|
|
if ((new_serial.irq != 0) ||
|
|
(new_serial.port != 0) ||
|
|
// (new_serial.type != info->type) ||
|
|
(new_serial.custom_divisor != 0) ||
|
|
(new_serial.baud_base != 921600))
|
|
return (-EPERM);
|
|
|
|
if (!capable(CAP_SYS_ADMIN)) {
|
|
if (((new_serial.flags & ~ASYNC_USR_MASK) !=
|
|
(info->asyncflags & ~ASYNC_USR_MASK)))
|
|
return (-EPERM);
|
|
} else {
|
|
info->close_delay = new_serial.close_delay * HZ / 100;
|
|
info->closing_wait = new_serial.closing_wait * HZ / 100;
|
|
}
|
|
|
|
new_serial.flags = (new_serial.flags & ~ASYNC_FLAGS);
|
|
new_serial.flags |= (info->asyncflags & ASYNC_FLAGS);
|
|
|
|
if (new_serial.type == PORT_16550A) {
|
|
MoxaSetFifo(info->port, 1);
|
|
} else {
|
|
MoxaSetFifo(info->port, 0);
|
|
}
|
|
|
|
info->type = new_serial.type;
|
|
return (0);
|
|
}
|
|
|
|
|
|
|
|
/*****************************************************************************
|
|
* Static local functions: *
|
|
*****************************************************************************/
|
|
static void moxafunc(void __iomem *ofsAddr, int cmd, ushort arg)
|
|
{
|
|
|
|
writew(arg, ofsAddr + FuncArg);
|
|
writew(cmd, ofsAddr + FuncCode);
|
|
moxa_wait_finish(ofsAddr);
|
|
}
|
|
|
|
static void moxa_wait_finish(void __iomem *ofsAddr)
|
|
{
|
|
unsigned long i, j;
|
|
|
|
i = jiffies;
|
|
while (readw(ofsAddr + FuncCode) != 0) {
|
|
j = jiffies;
|
|
if ((j - i) > moxaFuncTout) {
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void moxa_low_water_check(void __iomem *ofsAddr)
|
|
{
|
|
int len;
|
|
ushort rptr, wptr, mask;
|
|
|
|
if (readb(ofsAddr + FlagStat) & Xoff_state) {
|
|
rptr = readw(ofsAddr + RXrptr);
|
|
wptr = readw(ofsAddr + RXwptr);
|
|
mask = readw(ofsAddr + RX_mask);
|
|
len = (wptr - rptr) & mask;
|
|
if (len <= Low_water)
|
|
moxafunc(ofsAddr, FC_SendXon, 0);
|
|
}
|
|
}
|
|
|
|
static int moxaloadbios(int cardno, unsigned char __user *tmp, int len)
|
|
{
|
|
void __iomem *baseAddr;
|
|
int i;
|
|
|
|
if(len < 0 || len > sizeof(moxaBuff))
|
|
return -EINVAL;
|
|
if(copy_from_user(moxaBuff, tmp, len))
|
|
return -EFAULT;
|
|
baseAddr = moxa_boards[cardno].basemem;
|
|
writeb(HW_reset, baseAddr + Control_reg); /* reset */
|
|
msleep(10);
|
|
for (i = 0; i < 4096; i++)
|
|
writeb(0, baseAddr + i); /* clear fix page */
|
|
for (i = 0; i < len; i++)
|
|
writeb(moxaBuff[i], baseAddr + i); /* download BIOS */
|
|
writeb(0, baseAddr + Control_reg); /* restart */
|
|
return (0);
|
|
}
|
|
|
|
static int moxafindcard(int cardno)
|
|
{
|
|
void __iomem *baseAddr;
|
|
ushort tmp;
|
|
|
|
baseAddr = moxa_boards[cardno].basemem;
|
|
switch (moxa_boards[cardno].boardType) {
|
|
case MOXA_BOARD_C218_ISA:
|
|
case MOXA_BOARD_C218_PCI:
|
|
if ((tmp = readw(baseAddr + C218_key)) != C218_KeyCode) {
|
|
return (-1);
|
|
}
|
|
break;
|
|
case MOXA_BOARD_CP204J:
|
|
if ((tmp = readw(baseAddr + C218_key)) != CP204J_KeyCode) {
|
|
return (-1);
|
|
}
|
|
break;
|
|
default:
|
|
if ((tmp = readw(baseAddr + C320_key)) != C320_KeyCode) {
|
|
return (-1);
|
|
}
|
|
if ((tmp = readw(baseAddr + C320_status)) != STS_init) {
|
|
return (-2);
|
|
}
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
static int moxaload320b(int cardno, unsigned char __user *tmp, int len)
|
|
{
|
|
void __iomem *baseAddr;
|
|
int i;
|
|
|
|
if(len < 0 || len > sizeof(moxaBuff))
|
|
return -EINVAL;
|
|
if(copy_from_user(moxaBuff, tmp, len))
|
|
return -EFAULT;
|
|
baseAddr = moxa_boards[cardno].basemem;
|
|
writew(len - 7168 - 2, baseAddr + C320bapi_len);
|
|
writeb(1, baseAddr + Control_reg); /* Select Page 1 */
|
|
for (i = 0; i < 7168; i++)
|
|
writeb(moxaBuff[i], baseAddr + DynPage_addr + i);
|
|
writeb(2, baseAddr + Control_reg); /* Select Page 2 */
|
|
for (i = 0; i < (len - 7168); i++)
|
|
writeb(moxaBuff[i + 7168], baseAddr + DynPage_addr + i);
|
|
return (0);
|
|
}
|
|
|
|
static int moxaloadcode(int cardno, unsigned char __user *tmp, int len)
|
|
{
|
|
void __iomem *baseAddr, *ofsAddr;
|
|
int retval, port, i;
|
|
|
|
if(len < 0 || len > sizeof(moxaBuff))
|
|
return -EINVAL;
|
|
if(copy_from_user(moxaBuff, tmp, len))
|
|
return -EFAULT;
|
|
baseAddr = moxa_boards[cardno].basemem;
|
|
switch (moxa_boards[cardno].boardType) {
|
|
case MOXA_BOARD_C218_ISA:
|
|
case MOXA_BOARD_C218_PCI:
|
|
case MOXA_BOARD_CP204J:
|
|
retval = moxaloadc218(cardno, baseAddr, len);
|
|
if (retval)
|
|
return (retval);
|
|
port = cardno * MAX_PORTS_PER_BOARD;
|
|
for (i = 0; i < moxa_boards[cardno].numPorts; i++, port++) {
|
|
struct moxa_port *p = &moxa_ports[port];
|
|
|
|
p->chkPort = 1;
|
|
p->curBaud = 9600L;
|
|
p->DCDState = 0;
|
|
p->tableAddr = baseAddr + Extern_table + Extern_size * i;
|
|
ofsAddr = p->tableAddr;
|
|
writew(C218rx_mask, ofsAddr + RX_mask);
|
|
writew(C218tx_mask, ofsAddr + TX_mask);
|
|
writew(C218rx_spage + i * C218buf_pageno, ofsAddr + Page_rxb);
|
|
writew(readw(ofsAddr + Page_rxb) + C218rx_pageno, ofsAddr + EndPage_rxb);
|
|
|
|
writew(C218tx_spage + i * C218buf_pageno, ofsAddr + Page_txb);
|
|
writew(readw(ofsAddr + Page_txb) + C218tx_pageno, ofsAddr + EndPage_txb);
|
|
|
|
}
|
|
break;
|
|
default:
|
|
retval = moxaloadc320(cardno, baseAddr, len,
|
|
&moxa_boards[cardno].numPorts);
|
|
if (retval)
|
|
return (retval);
|
|
port = cardno * MAX_PORTS_PER_BOARD;
|
|
for (i = 0; i < moxa_boards[cardno].numPorts; i++, port++) {
|
|
struct moxa_port *p = &moxa_ports[port];
|
|
|
|
p->chkPort = 1;
|
|
p->curBaud = 9600L;
|
|
p->DCDState = 0;
|
|
p->tableAddr = baseAddr + Extern_table + Extern_size * i;
|
|
ofsAddr = p->tableAddr;
|
|
if (moxa_boards[cardno].numPorts == 8) {
|
|
writew(C320p8rx_mask, ofsAddr + RX_mask);
|
|
writew(C320p8tx_mask, ofsAddr + TX_mask);
|
|
writew(C320p8rx_spage + i * C320p8buf_pgno, ofsAddr + Page_rxb);
|
|
writew(readw(ofsAddr + Page_rxb) + C320p8rx_pgno, ofsAddr + EndPage_rxb);
|
|
writew(C320p8tx_spage + i * C320p8buf_pgno, ofsAddr + Page_txb);
|
|
writew(readw(ofsAddr + Page_txb) + C320p8tx_pgno, ofsAddr + EndPage_txb);
|
|
|
|
} else if (moxa_boards[cardno].numPorts == 16) {
|
|
writew(C320p16rx_mask, ofsAddr + RX_mask);
|
|
writew(C320p16tx_mask, ofsAddr + TX_mask);
|
|
writew(C320p16rx_spage + i * C320p16buf_pgno, ofsAddr + Page_rxb);
|
|
writew(readw(ofsAddr + Page_rxb) + C320p16rx_pgno, ofsAddr + EndPage_rxb);
|
|
writew(C320p16tx_spage + i * C320p16buf_pgno, ofsAddr + Page_txb);
|
|
writew(readw(ofsAddr + Page_txb) + C320p16tx_pgno, ofsAddr + EndPage_txb);
|
|
|
|
} else if (moxa_boards[cardno].numPorts == 24) {
|
|
writew(C320p24rx_mask, ofsAddr + RX_mask);
|
|
writew(C320p24tx_mask, ofsAddr + TX_mask);
|
|
writew(C320p24rx_spage + i * C320p24buf_pgno, ofsAddr + Page_rxb);
|
|
writew(readw(ofsAddr + Page_rxb) + C320p24rx_pgno, ofsAddr + EndPage_rxb);
|
|
writew(C320p24tx_spage + i * C320p24buf_pgno, ofsAddr + Page_txb);
|
|
writew(readw(ofsAddr + Page_txb), ofsAddr + EndPage_txb);
|
|
} else if (moxa_boards[cardno].numPorts == 32) {
|
|
writew(C320p32rx_mask, ofsAddr + RX_mask);
|
|
writew(C320p32tx_mask, ofsAddr + TX_mask);
|
|
writew(C320p32tx_ofs, ofsAddr + Ofs_txb);
|
|
writew(C320p32rx_spage + i * C320p32buf_pgno, ofsAddr + Page_rxb);
|
|
writew(readb(ofsAddr + Page_rxb), ofsAddr + EndPage_rxb);
|
|
writew(C320p32tx_spage + i * C320p32buf_pgno, ofsAddr + Page_txb);
|
|
writew(readw(ofsAddr + Page_txb), ofsAddr + EndPage_txb);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
moxa_boards[cardno].loadstat = 1;
|
|
return (0);
|
|
}
|
|
|
|
static int moxaloadc218(int cardno, void __iomem *baseAddr, int len)
|
|
{
|
|
char retry;
|
|
int i, j, len1, len2;
|
|
ushort usum, *ptr, keycode;
|
|
|
|
if (moxa_boards[cardno].boardType == MOXA_BOARD_CP204J)
|
|
keycode = CP204J_KeyCode;
|
|
else
|
|
keycode = C218_KeyCode;
|
|
usum = 0;
|
|
len1 = len >> 1;
|
|
ptr = (ushort *) moxaBuff;
|
|
for (i = 0; i < len1; i++)
|
|
usum += le16_to_cpu(*(ptr + i));
|
|
retry = 0;
|
|
do {
|
|
len1 = len >> 1;
|
|
j = 0;
|
|
while (len1) {
|
|
len2 = (len1 > 2048) ? 2048 : len1;
|
|
len1 -= len2;
|
|
for (i = 0; i < len2 << 1; i++)
|
|
writeb(moxaBuff[i + j], baseAddr + C218_LoadBuf + i);
|
|
j += i;
|
|
|
|
writew(len2, baseAddr + C218DLoad_len);
|
|
writew(0, baseAddr + C218_key);
|
|
for (i = 0; i < 100; i++) {
|
|
if (readw(baseAddr + C218_key) == keycode)
|
|
break;
|
|
msleep(10);
|
|
}
|
|
if (readw(baseAddr + C218_key) != keycode) {
|
|
return (-1);
|
|
}
|
|
}
|
|
writew(0, baseAddr + C218DLoad_len);
|
|
writew(usum, baseAddr + C218check_sum);
|
|
writew(0, baseAddr + C218_key);
|
|
for (i = 0; i < 100; i++) {
|
|
if (readw(baseAddr + C218_key) == keycode)
|
|
break;
|
|
msleep(10);
|
|
}
|
|
retry++;
|
|
} while ((readb(baseAddr + C218chksum_ok) != 1) && (retry < 3));
|
|
if (readb(baseAddr + C218chksum_ok) != 1) {
|
|
return (-1);
|
|
}
|
|
writew(0, baseAddr + C218_key);
|
|
for (i = 0; i < 100; i++) {
|
|
if (readw(baseAddr + Magic_no) == Magic_code)
|
|
break;
|
|
msleep(10);
|
|
}
|
|
if (readw(baseAddr + Magic_no) != Magic_code) {
|
|
return (-1);
|
|
}
|
|
writew(1, baseAddr + Disable_IRQ);
|
|
writew(0, baseAddr + Magic_no);
|
|
for (i = 0; i < 100; i++) {
|
|
if (readw(baseAddr + Magic_no) == Magic_code)
|
|
break;
|
|
msleep(10);
|
|
}
|
|
if (readw(baseAddr + Magic_no) != Magic_code) {
|
|
return (-1);
|
|
}
|
|
moxaCard = 1;
|
|
moxa_boards[cardno].intNdx = baseAddr + IRQindex;
|
|
moxa_boards[cardno].intPend = baseAddr + IRQpending;
|
|
moxa_boards[cardno].intTable = baseAddr + IRQtable;
|
|
return (0);
|
|
}
|
|
|
|
static int moxaloadc320(int cardno, void __iomem *baseAddr, int len, int *numPorts)
|
|
{
|
|
ushort usum;
|
|
int i, j, wlen, len2, retry;
|
|
ushort *uptr;
|
|
|
|
usum = 0;
|
|
wlen = len >> 1;
|
|
uptr = (ushort *) moxaBuff;
|
|
for (i = 0; i < wlen; i++)
|
|
usum += le16_to_cpu(uptr[i]);
|
|
retry = 0;
|
|
j = 0;
|
|
do {
|
|
while (wlen) {
|
|
if (wlen > 2048)
|
|
len2 = 2048;
|
|
else
|
|
len2 = wlen;
|
|
wlen -= len2;
|
|
len2 <<= 1;
|
|
for (i = 0; i < len2; i++)
|
|
writeb(moxaBuff[j + i], baseAddr + C320_LoadBuf + i);
|
|
len2 >>= 1;
|
|
j += i;
|
|
writew(len2, baseAddr + C320DLoad_len);
|
|
writew(0, baseAddr + C320_key);
|
|
for (i = 0; i < 10; i++) {
|
|
if (readw(baseAddr + C320_key) == C320_KeyCode)
|
|
break;
|
|
msleep(10);
|
|
}
|
|
if (readw(baseAddr + C320_key) != C320_KeyCode)
|
|
return (-1);
|
|
}
|
|
writew(0, baseAddr + C320DLoad_len);
|
|
writew(usum, baseAddr + C320check_sum);
|
|
writew(0, baseAddr + C320_key);
|
|
for (i = 0; i < 10; i++) {
|
|
if (readw(baseAddr + C320_key) == C320_KeyCode)
|
|
break;
|
|
msleep(10);
|
|
}
|
|
retry++;
|
|
} while ((readb(baseAddr + C320chksum_ok) != 1) && (retry < 3));
|
|
if (readb(baseAddr + C320chksum_ok) != 1)
|
|
return (-1);
|
|
writew(0, baseAddr + C320_key);
|
|
for (i = 0; i < 600; i++) {
|
|
if (readw(baseAddr + Magic_no) == Magic_code)
|
|
break;
|
|
msleep(10);
|
|
}
|
|
if (readw(baseAddr + Magic_no) != Magic_code)
|
|
return (-100);
|
|
|
|
if (moxa_boards[cardno].busType == MOXA_BUS_TYPE_PCI) { /* ASIC board */
|
|
writew(0x3800, baseAddr + TMS320_PORT1);
|
|
writew(0x3900, baseAddr + TMS320_PORT2);
|
|
writew(28499, baseAddr + TMS320_CLOCK);
|
|
} else {
|
|
writew(0x3200, baseAddr + TMS320_PORT1);
|
|
writew(0x3400, baseAddr + TMS320_PORT2);
|
|
writew(19999, baseAddr + TMS320_CLOCK);
|
|
}
|
|
writew(1, baseAddr + Disable_IRQ);
|
|
writew(0, baseAddr + Magic_no);
|
|
for (i = 0; i < 500; i++) {
|
|
if (readw(baseAddr + Magic_no) == Magic_code)
|
|
break;
|
|
msleep(10);
|
|
}
|
|
if (readw(baseAddr + Magic_no) != Magic_code)
|
|
return (-102);
|
|
|
|
j = readw(baseAddr + Module_cnt);
|
|
if (j <= 0)
|
|
return (-101);
|
|
*numPorts = j * 8;
|
|
writew(j, baseAddr + Module_no);
|
|
writew(0, baseAddr + Magic_no);
|
|
for (i = 0; i < 600; i++) {
|
|
if (readw(baseAddr + Magic_no) == Magic_code)
|
|
break;
|
|
msleep(10);
|
|
}
|
|
if (readw(baseAddr + Magic_no) != Magic_code)
|
|
return (-102);
|
|
moxaCard = 1;
|
|
moxa_boards[cardno].intNdx = baseAddr + IRQindex;
|
|
moxa_boards[cardno].intPend = baseAddr + IRQpending;
|
|
moxa_boards[cardno].intTable = baseAddr + IRQtable;
|
|
return (0);
|
|
}
|
|
|
|
static void MoxaSetFifo(int port, int enable)
|
|
{
|
|
void __iomem *ofsAddr = moxa_ports[port].tableAddr;
|
|
|
|
if (!enable) {
|
|
moxafunc(ofsAddr, FC_SetRxFIFOTrig, 0);
|
|
moxafunc(ofsAddr, FC_SetTxFIFOCnt, 1);
|
|
} else {
|
|
moxafunc(ofsAddr, FC_SetRxFIFOTrig, 3);
|
|
moxafunc(ofsAddr, FC_SetTxFIFOCnt, 16);
|
|
}
|
|
}
|