1 /*****************************************************************************/
3 * moxa.c -- MOXA Intellio family multiport serial driver.
5 * Copyright (C) 1999-2000 Moxa Technologies (support@moxa.com.tw).
7 * This code is loosely based on the Linux serial driver, written by
8 * Linus Torvalds, Theodore T'so and others.
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26 * MOXA Intellio Series Driver
32 #include <linux/module.h>
33 #include <linux/types.h>
35 #include <linux/ioport.h>
36 #include <linux/errno.h>
37 #include <linux/signal.h>
38 #include <linux/sched.h>
39 #include <linux/timer.h>
40 #include <linux/interrupt.h>
41 #include <linux/tty.h>
42 #include <linux/tty_flip.h>
43 #include <linux/major.h>
44 #include <linux/string.h>
45 #include <linux/fcntl.h>
46 #include <linux/ptrace.h>
47 #include <linux/serial.h>
48 #include <linux/tty_driver.h>
49 #include <linux/delay.h>
50 #include <linux/pci.h>
51 #include <linux/init.h>
52 #include <linux/bitops.h>
54 #include <asm/system.h>
56 #include <asm/uaccess.h>
58 #define MOXA_VERSION "5.1k"
61 #define MOXACUMAJOR 173
63 #define put_to_user(arg1, arg2) put_user(arg1, (unsigned long *)arg2)
64 #define get_from_user(arg1, arg2) get_user(arg1, (unsigned int *)arg2)
66 #define MAX_BOARDS 4 /* Don't change this value */
67 #define MAX_PORTS_PER_BOARD 32 /* Don't change this value */
68 #define MAX_PORTS 128 /* Don't change this value */
71 * Define the Moxa PCI vendor and device IDs.
73 #define MOXA_BUS_TYPE_ISA 0
74 #define MOXA_BUS_TYPE_PCI 1
76 #ifndef PCI_VENDOR_ID_MOXA
77 #define PCI_VENDOR_ID_MOXA 0x1393
79 #ifndef PCI_DEVICE_ID_CP204J
80 #define PCI_DEVICE_ID_CP204J 0x2040
82 #ifndef PCI_DEVICE_ID_C218
83 #define PCI_DEVICE_ID_C218 0x2180
85 #ifndef PCI_DEVICE_ID_C320
86 #define PCI_DEVICE_ID_C320 0x3200
90 MOXA_BOARD_C218_PCI
= 1,
97 static char *moxa_brdname
[] =
99 "C218 Turbo PCI series",
100 "C218 Turbo ISA series",
101 "C320 Turbo PCI series",
102 "C320 Turbo ISA series",
107 static struct pci_device_id moxa_pcibrds
[] = {
108 { PCI_VENDOR_ID_MOXA
, PCI_DEVICE_ID_C218
, PCI_ANY_ID
, PCI_ANY_ID
,
109 0, 0, MOXA_BOARD_C218_PCI
},
110 { PCI_VENDOR_ID_MOXA
, PCI_DEVICE_ID_C320
, PCI_ANY_ID
, PCI_ANY_ID
,
111 0, 0, MOXA_BOARD_C320_PCI
},
112 { PCI_VENDOR_ID_MOXA
, PCI_DEVICE_ID_CP204J
, PCI_ANY_ID
, PCI_ANY_ID
,
113 0, 0, MOXA_BOARD_CP204J
},
116 MODULE_DEVICE_TABLE(pci
, moxa_pcibrds
);
117 #endif /* CONFIG_PCI */
119 typedef struct _moxa_isa_board_conf
{
122 unsigned long baseAddr
;
123 } moxa_isa_board_conf
;
125 static moxa_isa_board_conf moxa_isa_boards
[] =
127 /* {MOXA_BOARD_C218_ISA,8,0xDC000}, */
130 typedef struct _moxa_pci_devinfo
{
133 struct pci_dev
*pdev
;
136 typedef struct _moxa_board_conf
{
139 unsigned long baseAddr
;
141 moxa_pci_devinfo pciInfo
;
144 static moxa_board_conf moxa_boards
[MAX_BOARDS
];
145 static void __iomem
*moxaBaseAddr
[MAX_BOARDS
];
146 static int loadstat
[MAX_BOARDS
];
152 unsigned short closing_wait
;
155 long event
; /* long req'd for set_bit --RR */
157 unsigned long statusflags
;
158 struct tty_struct
*tty
;
160 wait_queue_head_t open_wait
;
161 wait_queue_head_t close_wait
;
162 struct work_struct tqueue
;
165 struct mxser_mstatus
{
173 static struct mxser_mstatus GMStatus
[MAX_PORTS
];
176 #define TXSTOPPED 0x1
178 #define EMPTYWAIT 0x4
182 #define MOXA_EVENT_HANGUP 1
184 #define SERIAL_DO_RESTART
187 #define SERIAL_TYPE_NORMAL 1
189 #define WAKEUP_CHARS 256
191 #define PORTNO(x) ((x)->index)
193 static int verbose
= 0;
194 static int ttymajor
= MOXAMAJOR
;
195 /* Variables for insmod */
197 static int baseaddr
[] = {0, 0, 0, 0};
198 static int type
[] = {0, 0, 0, 0};
199 static int numports
[] = {0, 0, 0, 0};
202 MODULE_AUTHOR("William Chen");
203 MODULE_DESCRIPTION("MOXA Intellio Family Multiport Board Device Driver");
204 MODULE_LICENSE("GPL");
206 module_param_array(type
, int, NULL
, 0);
207 module_param_array(baseaddr
, int, NULL
, 0);
208 module_param_array(numports
, int, NULL
, 0);
210 module_param(ttymajor
, int, 0);
211 module_param(verbose
, bool, 0644);
213 static struct tty_driver
*moxaDriver
;
214 static struct moxa_str moxaChannels
[MAX_PORTS
];
215 static unsigned char *moxaXmitBuff
;
216 static int moxaTimer_on
;
217 static struct timer_list moxaTimer
;
218 static int moxaEmptyTimer_on
[MAX_PORTS
];
219 static struct timer_list moxaEmptyTimer
[MAX_PORTS
];
220 static struct semaphore moxaBuffSem
;
225 static void do_moxa_softint(struct work_struct
*);
226 static int moxa_open(struct tty_struct
*, struct file
*);
227 static void moxa_close(struct tty_struct
*, struct file
*);
228 static int moxa_write(struct tty_struct
*, const unsigned char *, int);
229 static int moxa_write_room(struct tty_struct
*);
230 static void moxa_flush_buffer(struct tty_struct
*);
231 static int moxa_chars_in_buffer(struct tty_struct
*);
232 static void moxa_flush_chars(struct tty_struct
*);
233 static void moxa_put_char(struct tty_struct
*, unsigned char);
234 static int moxa_ioctl(struct tty_struct
*, struct file
*, unsigned int, unsigned long);
235 static void moxa_throttle(struct tty_struct
*);
236 static void moxa_unthrottle(struct tty_struct
*);
237 static void moxa_set_termios(struct tty_struct
*, struct termios
*);
238 static void moxa_stop(struct tty_struct
*);
239 static void moxa_start(struct tty_struct
*);
240 static void moxa_hangup(struct tty_struct
*);
241 static int moxa_tiocmget(struct tty_struct
*tty
, struct file
*file
);
242 static int moxa_tiocmset(struct tty_struct
*tty
, struct file
*file
,
243 unsigned int set
, unsigned int clear
);
244 static void moxa_poll(unsigned long);
245 static void set_tty_param(struct tty_struct
*);
246 static int block_till_ready(struct tty_struct
*, struct file
*,
248 static void setup_empty_event(struct tty_struct
*);
249 static void check_xmit_empty(unsigned long);
250 static void shut_down(struct moxa_str
*);
251 static void receive_data(struct moxa_str
*);
253 * moxa board interface functions:
255 static void MoxaDriverInit(void);
256 static int MoxaDriverIoctl(unsigned int, unsigned long, int);
257 static int MoxaDriverPoll(void);
258 static int MoxaPortsOfCard(int);
259 static int MoxaPortIsValid(int);
260 static void MoxaPortEnable(int);
261 static void MoxaPortDisable(int);
262 static long MoxaPortGetMaxBaud(int);
263 static long MoxaPortSetBaud(int, long);
264 static int MoxaPortSetTermio(int, struct termios
*, speed_t
);
265 static int MoxaPortGetLineOut(int, int *, int *);
266 static void MoxaPortLineCtrl(int, int, int);
267 static void MoxaPortFlowCtrl(int, int, int, int, int, int);
268 static int MoxaPortLineStatus(int);
269 static int MoxaPortDCDChange(int);
270 static int MoxaPortDCDON(int);
271 static void MoxaPortFlushData(int, int);
272 static int MoxaPortWriteData(int, unsigned char *, int);
273 static int MoxaPortReadData(int, struct tty_struct
*tty
);
274 static int MoxaPortTxQueue(int);
275 static int MoxaPortRxQueue(int);
276 static int MoxaPortTxFree(int);
277 static void MoxaPortTxDisable(int);
278 static void MoxaPortTxEnable(int);
279 static int MoxaPortResetBrkCnt(int);
280 static void MoxaPortSendBreak(int, int);
281 static int moxa_get_serial_info(struct moxa_str
*, struct serial_struct __user
*);
282 static int moxa_set_serial_info(struct moxa_str
*, struct serial_struct __user
*);
283 static void MoxaSetFifo(int port
, int enable
);
285 static const struct tty_operations moxa_ops
= {
289 .write_room
= moxa_write_room
,
290 .flush_buffer
= moxa_flush_buffer
,
291 .chars_in_buffer
= moxa_chars_in_buffer
,
292 .flush_chars
= moxa_flush_chars
,
293 .put_char
= moxa_put_char
,
295 .throttle
= moxa_throttle
,
296 .unthrottle
= moxa_unthrottle
,
297 .set_termios
= moxa_set_termios
,
300 .hangup
= moxa_hangup
,
301 .tiocmget
= moxa_tiocmget
,
302 .tiocmset
= moxa_tiocmset
,
305 static DEFINE_SPINLOCK(moxa_lock
);
308 static int moxa_get_PCI_conf(struct pci_dev
*p
, int board_type
, moxa_board_conf
* board
)
310 board
->baseAddr
= pci_resource_start (p
, 2);
311 board
->boardType
= board_type
;
312 switch (board_type
) {
313 case MOXA_BOARD_C218_ISA
:
314 case MOXA_BOARD_C218_PCI
:
318 case MOXA_BOARD_CP204J
:
325 board
->busType
= MOXA_BUS_TYPE_PCI
;
326 board
->pciInfo
.busNum
= p
->bus
->number
;
327 board
->pciInfo
.devNum
= p
->devfn
>> 3;
328 board
->pciInfo
.pdev
= p
;
329 /* don't lose the reference in the next pci_get_device iteration */
334 #endif /* CONFIG_PCI */
336 static int __init
moxa_init(void)
341 printk(KERN_INFO
"MOXA Intellio family driver version %s\n", MOXA_VERSION
);
342 moxaDriver
= alloc_tty_driver(MAX_PORTS
+ 1);
346 init_MUTEX(&moxaBuffSem
);
347 moxaDriver
->owner
= THIS_MODULE
;
348 moxaDriver
->name
= "ttyMX";
349 moxaDriver
->major
= ttymajor
;
350 moxaDriver
->minor_start
= 0;
351 moxaDriver
->type
= TTY_DRIVER_TYPE_SERIAL
;
352 moxaDriver
->subtype
= SERIAL_TYPE_NORMAL
;
353 moxaDriver
->init_termios
= tty_std_termios
;
354 moxaDriver
->init_termios
.c_iflag
= 0;
355 moxaDriver
->init_termios
.c_oflag
= 0;
356 moxaDriver
->init_termios
.c_cflag
= B9600
| CS8
| CREAD
| CLOCAL
| HUPCL
;
357 moxaDriver
->init_termios
.c_lflag
= 0;
358 moxaDriver
->flags
= TTY_DRIVER_REAL_RAW
;
359 tty_set_operations(moxaDriver
, &moxa_ops
);
363 for (i
= 0, ch
= moxaChannels
; i
< MAX_PORTS
; i
++, ch
++) {
364 ch
->type
= PORT_16550A
;
366 INIT_WORK(&ch
->tqueue
, do_moxa_softint
);
368 ch
->close_delay
= 5 * HZ
/ 10;
369 ch
->closing_wait
= 30 * HZ
;
371 ch
->blocked_open
= 0;
372 ch
->cflag
= B9600
| CS8
| CREAD
| CLOCAL
| HUPCL
;
373 init_waitqueue_head(&ch
->open_wait
);
374 init_waitqueue_head(&ch
->close_wait
);
377 for (i
= 0; i
< MAX_BOARDS
; i
++) {
378 moxa_boards
[i
].boardType
= 0;
379 moxa_boards
[i
].numPorts
= 0;
380 moxa_boards
[i
].baseAddr
= 0;
381 moxa_boards
[i
].busType
= 0;
382 moxa_boards
[i
].pciInfo
.busNum
= 0;
383 moxa_boards
[i
].pciInfo
.devNum
= 0;
386 printk("Tty devices major number = %d\n", ttymajor
);
388 if (tty_register_driver(moxaDriver
)) {
389 printk(KERN_ERR
"Couldn't install MOXA Smartio family driver !\n");
390 put_tty_driver(moxaDriver
);
393 for (i
= 0; i
< MAX_PORTS
; i
++) {
394 init_timer(&moxaEmptyTimer
[i
]);
395 moxaEmptyTimer
[i
].function
= check_xmit_empty
;
396 moxaEmptyTimer
[i
].data
= (unsigned long) & moxaChannels
[i
];
397 moxaEmptyTimer_on
[i
] = 0;
400 init_timer(&moxaTimer
);
401 moxaTimer
.function
= moxa_poll
;
402 moxaTimer
.expires
= jiffies
+ (HZ
/ 50);
404 add_timer(&moxaTimer
);
406 /* Find the boards defined in source code */
408 for (i
= 0; i
< MAX_BOARDS
; i
++) {
409 if ((moxa_isa_boards
[i
].boardType
== MOXA_BOARD_C218_ISA
) ||
410 (moxa_isa_boards
[i
].boardType
== MOXA_BOARD_C320_ISA
)) {
411 moxa_boards
[numBoards
].boardType
= moxa_isa_boards
[i
].boardType
;
412 if (moxa_isa_boards
[i
].boardType
== MOXA_BOARD_C218_ISA
)
413 moxa_boards
[numBoards
].numPorts
= 8;
415 moxa_boards
[numBoards
].numPorts
= moxa_isa_boards
[i
].numPorts
;
416 moxa_boards
[numBoards
].busType
= MOXA_BUS_TYPE_ISA
;
417 moxa_boards
[numBoards
].baseAddr
= moxa_isa_boards
[i
].baseAddr
;
419 printk("Board %2d: %s board(baseAddr=%lx)\n",
421 moxa_brdname
[moxa_boards
[numBoards
].boardType
- 1],
422 moxa_boards
[numBoards
].baseAddr
);
426 /* Find the boards defined form module args. */
428 for (i
= 0; i
< MAX_BOARDS
; i
++) {
429 if ((type
[i
] == MOXA_BOARD_C218_ISA
) ||
430 (type
[i
] == MOXA_BOARD_C320_ISA
)) {
432 printk("Board %2d: %s board(baseAddr=%lx)\n",
434 moxa_brdname
[type
[i
] - 1],
435 (unsigned long) baseaddr
[i
]);
436 if (numBoards
>= MAX_BOARDS
) {
438 printk("More than %d MOXA Intellio family boards found. Board is ignored.", MAX_BOARDS
);
441 moxa_boards
[numBoards
].boardType
= type
[i
];
442 if (moxa_isa_boards
[i
].boardType
== MOXA_BOARD_C218_ISA
)
443 moxa_boards
[numBoards
].numPorts
= 8;
445 moxa_boards
[numBoards
].numPorts
= numports
[i
];
446 moxa_boards
[numBoards
].busType
= MOXA_BUS_TYPE_ISA
;
447 moxa_boards
[numBoards
].baseAddr
= baseaddr
[i
];
452 /* Find PCI boards here */
455 struct pci_dev
*p
= NULL
;
456 int n
= ARRAY_SIZE(moxa_pcibrds
) - 1;
459 while ((p
= pci_get_device(moxa_pcibrds
[i
].vendor
, moxa_pcibrds
[i
].device
, p
))!=NULL
)
461 if (pci_enable_device(p
))
463 if (numBoards
>= MAX_BOARDS
) {
465 printk("More than %d MOXA Intellio family boards found. Board is ignored.", MAX_BOARDS
);
467 moxa_get_PCI_conf(p
, moxa_pcibrds
[i
].driver_data
,
468 &moxa_boards
[numBoards
]);
476 for (i
= 0; i
< numBoards
; i
++) {
477 moxaBaseAddr
[i
] = ioremap((unsigned long) moxa_boards
[i
].baseAddr
, 0x4000);
483 static void __exit
moxa_exit(void)
488 printk("Unloading module moxa ...\n");
491 del_timer(&moxaTimer
);
493 for (i
= 0; i
< MAX_PORTS
; i
++)
494 if (moxaEmptyTimer_on
[i
])
495 del_timer(&moxaEmptyTimer
[i
]);
497 if (tty_unregister_driver(moxaDriver
))
498 printk("Couldn't unregister MOXA Intellio family serial driver\n");
499 put_tty_driver(moxaDriver
);
501 for (i
= 0; i
< MAX_BOARDS
; i
++) {
503 iounmap(moxaBaseAddr
[i
]);
504 if (moxa_boards
[i
].busType
== MOXA_BUS_TYPE_PCI
)
505 pci_dev_put(moxa_boards
[i
].pciInfo
.pdev
);
512 module_init(moxa_init
);
513 module_exit(moxa_exit
);
515 static void do_moxa_softint(struct work_struct
*work
)
517 struct moxa_str
*ch
= container_of(work
, struct moxa_str
, tqueue
);
518 struct tty_struct
*tty
;
520 if (ch
&& (tty
= ch
->tty
)) {
521 if (test_and_clear_bit(MOXA_EVENT_HANGUP
, &ch
->event
)) {
522 tty_hangup(tty
); /* FIXME: module removal race here - AKPM */
523 wake_up_interruptible(&ch
->open_wait
);
524 ch
->asyncflags
&= ~ASYNC_NORMAL_ACTIVE
;
529 static int moxa_open(struct tty_struct
*tty
, struct file
*filp
)
537 if (port
== MAX_PORTS
) {
540 if (!MoxaPortIsValid(port
)) {
541 tty
->driver_data
= NULL
;
546 page
= get_zeroed_page(GFP_KERNEL
);
551 /* This test is guarded by the BuffSem so no longer needed
556 moxaXmitBuff
= (unsigned char *) page
;
560 ch
= &moxaChannels
[port
];
562 tty
->driver_data
= ch
;
564 if (!(ch
->asyncflags
& ASYNC_INITIALIZED
)) {
567 MoxaPortLineCtrl(ch
->port
, 1, 1);
568 MoxaPortEnable(ch
->port
);
569 ch
->asyncflags
|= ASYNC_INITIALIZED
;
571 retval
= block_till_ready(tty
, filp
, ch
);
573 moxa_unthrottle(tty
);
575 if (ch
->type
== PORT_16550A
) {
576 MoxaSetFifo(ch
->port
, 1);
578 MoxaSetFifo(ch
->port
, 0);
584 static void moxa_close(struct tty_struct
*tty
, struct file
*filp
)
590 if (port
== MAX_PORTS
) {
593 if (!MoxaPortIsValid(port
)) {
594 #ifdef SERIAL_DEBUG_CLOSE
595 printk("Invalid portno in moxa_close\n");
597 tty
->driver_data
= NULL
;
600 if (tty
->driver_data
== NULL
) {
603 if (tty_hung_up_p(filp
)) {
606 ch
= (struct moxa_str
*) tty
->driver_data
;
608 if ((tty
->count
== 1) && (ch
->count
!= 1)) {
609 printk("moxa_close: bad serial port count; tty->count is 1, "
610 "ch->count is %d\n", ch
->count
);
613 if (--ch
->count
< 0) {
614 printk("moxa_close: bad serial port count, device=%s\n",
621 ch
->asyncflags
|= ASYNC_CLOSING
;
623 ch
->cflag
= tty
->termios
->c_cflag
;
624 if (ch
->asyncflags
& ASYNC_INITIALIZED
) {
625 setup_empty_event(tty
);
626 tty_wait_until_sent(tty
, 30 * HZ
); /* 30 seconds timeout */
627 moxaEmptyTimer_on
[ch
->port
] = 0;
628 del_timer(&moxaEmptyTimer
[ch
->port
]);
631 MoxaPortFlushData(port
, 2);
633 if (tty
->driver
->flush_buffer
)
634 tty
->driver
->flush_buffer(tty
);
635 tty_ldisc_flush(tty
);
640 if (ch
->blocked_open
) {
641 if (ch
->close_delay
) {
642 msleep_interruptible(jiffies_to_msecs(ch
->close_delay
));
644 wake_up_interruptible(&ch
->open_wait
);
646 ch
->asyncflags
&= ~(ASYNC_NORMAL_ACTIVE
| ASYNC_CLOSING
);
647 wake_up_interruptible(&ch
->close_wait
);
650 static int moxa_write(struct tty_struct
*tty
,
651 const unsigned char *buf
, int count
)
657 ch
= (struct moxa_str
*) tty
->driver_data
;
662 spin_lock_irqsave(&moxa_lock
, flags
);
663 len
= MoxaPortWriteData(port
, (unsigned char *) buf
, count
);
664 spin_unlock_irqrestore(&moxa_lock
, flags
);
666 /*********************************************
667 if ( !(ch->statusflags & LOWWAIT) &&
668 ((len != count) || (MoxaPortTxFree(port) <= 100)) )
669 ************************************************/
670 ch
->statusflags
|= LOWWAIT
;
674 static int moxa_write_room(struct tty_struct
*tty
)
680 ch
= (struct moxa_str
*) tty
->driver_data
;
683 return (MoxaPortTxFree(ch
->port
));
686 static void moxa_flush_buffer(struct tty_struct
*tty
)
688 struct moxa_str
*ch
= (struct moxa_str
*) tty
->driver_data
;
692 MoxaPortFlushData(ch
->port
, 1);
696 static int moxa_chars_in_buffer(struct tty_struct
*tty
)
699 struct moxa_str
*ch
= (struct moxa_str
*) tty
->driver_data
;
702 * Sigh...I have to check if driver_data is NULL here, because
703 * if an open() fails, the TTY subsystem eventually calls
704 * tty_wait_until_sent(), which calls the driver's chars_in_buffer()
705 * routine. And since the open() failed, we return 0 here. TDJ
709 chars
= MoxaPortTxQueue(ch
->port
);
712 * Make it possible to wakeup anything waiting for output
713 * in tty_ioctl.c, etc.
715 if (!(ch
->statusflags
& EMPTYWAIT
))
716 setup_empty_event(tty
);
721 static void moxa_flush_chars(struct tty_struct
*tty
)
724 * Don't think I need this, because this is called to empty the TX
725 * buffer for the 16450, 16550, etc.
729 static void moxa_put_char(struct tty_struct
*tty
, unsigned char c
)
735 ch
= (struct moxa_str
*) tty
->driver_data
;
739 spin_lock_irqsave(&moxa_lock
, flags
);
741 MoxaPortWriteData(port
, moxaXmitBuff
, 1);
742 spin_unlock_irqrestore(&moxa_lock
, flags
);
743 /************************************************
744 if ( !(ch->statusflags & LOWWAIT) && (MoxaPortTxFree(port) <= 100) )
745 *************************************************/
746 ch
->statusflags
|= LOWWAIT
;
749 static int moxa_tiocmget(struct tty_struct
*tty
, struct file
*file
)
751 struct moxa_str
*ch
= (struct moxa_str
*) tty
->driver_data
;
753 int flag
= 0, dtr
, rts
;
756 if ((port
!= MAX_PORTS
) && (!ch
))
759 MoxaPortGetLineOut(ch
->port
, &dtr
, &rts
);
764 dtr
= MoxaPortLineStatus(ch
->port
);
774 static int moxa_tiocmset(struct tty_struct
*tty
, struct file
*file
,
775 unsigned int set
, unsigned int clear
)
777 struct moxa_str
*ch
= (struct moxa_str
*) tty
->driver_data
;
782 if ((port
!= MAX_PORTS
) && (!ch
))
785 MoxaPortGetLineOut(ch
->port
, &dtr
, &rts
);
790 if (clear
& TIOCM_RTS
)
792 if (clear
& TIOCM_DTR
)
794 MoxaPortLineCtrl(ch
->port
, dtr
, rts
);
798 static int moxa_ioctl(struct tty_struct
*tty
, struct file
*file
,
799 unsigned int cmd
, unsigned long arg
)
801 struct moxa_str
*ch
= (struct moxa_str
*) tty
->driver_data
;
803 void __user
*argp
= (void __user
*)arg
;
807 if ((port
!= MAX_PORTS
) && (!ch
))
811 case TCSBRK
: /* SVID version: non-zero arg --> no break */
812 retval
= tty_check_change(tty
);
815 setup_empty_event(tty
);
816 tty_wait_until_sent(tty
, 0);
818 MoxaPortSendBreak(ch
->port
, 0);
820 case TCSBRKP
: /* support for POSIX tcsendbreak() */
821 retval
= tty_check_change(tty
);
824 setup_empty_event(tty
);
825 tty_wait_until_sent(tty
, 0);
826 MoxaPortSendBreak(ch
->port
, arg
);
829 return put_user(C_CLOCAL(tty
) ? 1 : 0, (unsigned long __user
*) argp
);
831 if(get_user(retval
, (unsigned long __user
*) argp
))
834 tty
->termios
->c_cflag
= ((tty
->termios
->c_cflag
& ~CLOCAL
) |
837 ch
->asyncflags
&= ~ASYNC_CHECK_CD
;
839 ch
->asyncflags
|= ASYNC_CHECK_CD
;
842 return moxa_get_serial_info(ch
, argp
);
845 return moxa_set_serial_info(ch
, argp
);
847 retval
= MoxaDriverIoctl(cmd
, arg
, port
);
852 static void moxa_throttle(struct tty_struct
*tty
)
854 struct moxa_str
*ch
= (struct moxa_str
*) tty
->driver_data
;
856 ch
->statusflags
|= THROTTLE
;
859 static void moxa_unthrottle(struct tty_struct
*tty
)
861 struct moxa_str
*ch
= (struct moxa_str
*) tty
->driver_data
;
863 ch
->statusflags
&= ~THROTTLE
;
866 static void moxa_set_termios(struct tty_struct
*tty
,
867 struct termios
*old_termios
)
869 struct moxa_str
*ch
= (struct moxa_str
*) tty
->driver_data
;
874 if (!(old_termios
->c_cflag
& CLOCAL
) &&
875 (tty
->termios
->c_cflag
& CLOCAL
))
876 wake_up_interruptible(&ch
->open_wait
);
879 static void moxa_stop(struct tty_struct
*tty
)
881 struct moxa_str
*ch
= (struct moxa_str
*) tty
->driver_data
;
885 MoxaPortTxDisable(ch
->port
);
886 ch
->statusflags
|= TXSTOPPED
;
890 static void moxa_start(struct tty_struct
*tty
)
892 struct moxa_str
*ch
= (struct moxa_str
*) tty
->driver_data
;
897 if (!(ch
->statusflags
& TXSTOPPED
))
900 MoxaPortTxEnable(ch
->port
);
901 ch
->statusflags
&= ~TXSTOPPED
;
904 static void moxa_hangup(struct tty_struct
*tty
)
906 struct moxa_str
*ch
= (struct moxa_str
*) tty
->driver_data
;
908 moxa_flush_buffer(tty
);
912 ch
->asyncflags
&= ~ASYNC_NORMAL_ACTIVE
;
914 wake_up_interruptible(&ch
->open_wait
);
917 static void moxa_poll(unsigned long ignored
)
921 struct tty_struct
*tp
;
925 del_timer(&moxaTimer
);
927 if (MoxaDriverPoll() < 0) {
928 moxaTimer
.function
= moxa_poll
;
929 moxaTimer
.expires
= jiffies
+ (HZ
/ 50);
931 add_timer(&moxaTimer
);
934 for (card
= 0; card
< MAX_BOARDS
; card
++) {
935 if ((ports
= MoxaPortsOfCard(card
)) <= 0)
937 ch
= &moxaChannels
[card
* MAX_PORTS_PER_BOARD
];
938 for (i
= 0; i
< ports
; i
++, ch
++) {
939 if ((ch
->asyncflags
& ASYNC_INITIALIZED
) == 0)
941 if (!(ch
->statusflags
& THROTTLE
) &&
942 (MoxaPortRxQueue(ch
->port
) > 0))
944 if ((tp
= ch
->tty
) == 0)
946 if (ch
->statusflags
& LOWWAIT
) {
947 if (MoxaPortTxQueue(ch
->port
) <= WAKEUP_CHARS
) {
949 ch
->statusflags
&= ~LOWWAIT
;
954 if (!I_IGNBRK(tp
) && (MoxaPortResetBrkCnt(ch
->port
) > 0)) {
955 tty_insert_flip_char(tp
, 0, TTY_BREAK
);
956 tty_schedule_flip(tp
);
958 if (MoxaPortDCDChange(ch
->port
)) {
959 if (ch
->asyncflags
& ASYNC_CHECK_CD
) {
960 if (MoxaPortDCDON(ch
->port
))
961 wake_up_interruptible(&ch
->open_wait
);
963 set_bit(MOXA_EVENT_HANGUP
, &ch
->event
);
964 schedule_work(&ch
->tqueue
);
971 moxaTimer
.function
= moxa_poll
;
972 moxaTimer
.expires
= jiffies
+ (HZ
/ 50);
974 add_timer(&moxaTimer
);
977 /******************************************************************************/
979 static void set_tty_param(struct tty_struct
*tty
)
981 register struct termios
*ts
;
983 int rts
, cts
, txflow
, rxflow
, xany
;
985 ch
= (struct moxa_str
*) tty
->driver_data
;
987 if (ts
->c_cflag
& CLOCAL
)
988 ch
->asyncflags
&= ~ASYNC_CHECK_CD
;
990 ch
->asyncflags
|= ASYNC_CHECK_CD
;
991 rts
= cts
= txflow
= rxflow
= xany
= 0;
992 if (ts
->c_cflag
& CRTSCTS
)
994 if (ts
->c_iflag
& IXON
)
996 if (ts
->c_iflag
& IXOFF
)
998 if (ts
->c_iflag
& IXANY
)
1000 MoxaPortFlowCtrl(ch
->port
, rts
, cts
, txflow
, rxflow
, xany
);
1001 MoxaPortSetTermio(ch
->port
, ts
, tty_get_baud_rate(tty
));
1004 static int block_till_ready(struct tty_struct
*tty
, struct file
*filp
,
1005 struct moxa_str
*ch
)
1007 DECLARE_WAITQUEUE(wait
,current
);
1008 unsigned long flags
;
1010 int do_clocal
= C_CLOCAL(tty
);
1013 * If the device is in the middle of being closed, then block
1014 * until it's done, and then try again.
1016 if (tty_hung_up_p(filp
) || (ch
->asyncflags
& ASYNC_CLOSING
)) {
1017 if (ch
->asyncflags
& ASYNC_CLOSING
)
1018 interruptible_sleep_on(&ch
->close_wait
);
1019 #ifdef SERIAL_DO_RESTART
1020 if (ch
->asyncflags
& ASYNC_HUP_NOTIFY
)
1023 return (-ERESTARTSYS
);
1029 * If non-blocking mode is set, then make the check up front
1032 if (filp
->f_flags
& O_NONBLOCK
) {
1033 ch
->asyncflags
|= ASYNC_NORMAL_ACTIVE
;
1037 * Block waiting for the carrier detect and the line to become free
1040 add_wait_queue(&ch
->open_wait
, &wait
);
1041 #ifdef SERIAL_DEBUG_OPEN
1042 printk("block_til_ready before block: ttys%d, count = %d\n",
1043 ch
->line
, ch
->count
);
1045 spin_lock_irqsave(&moxa_lock
, flags
);
1046 if (!tty_hung_up_p(filp
))
1049 spin_unlock_irqrestore(&moxa_lock
, flags
);
1052 set_current_state(TASK_INTERRUPTIBLE
);
1053 if (tty_hung_up_p(filp
) ||
1054 !(ch
->asyncflags
& ASYNC_INITIALIZED
)) {
1055 #ifdef SERIAL_DO_RESTART
1056 if (ch
->asyncflags
& ASYNC_HUP_NOTIFY
)
1059 retval
= -ERESTARTSYS
;
1065 if (!(ch
->asyncflags
& ASYNC_CLOSING
) && (do_clocal
||
1066 MoxaPortDCDON(ch
->port
)))
1069 if (signal_pending(current
)) {
1070 retval
= -ERESTARTSYS
;
1075 set_current_state(TASK_RUNNING
);
1076 remove_wait_queue(&ch
->open_wait
, &wait
);
1078 spin_lock_irqsave(&moxa_lock
, flags
);
1079 if (!tty_hung_up_p(filp
))
1082 spin_unlock_irqrestore(&moxa_lock
, flags
);
1083 #ifdef SERIAL_DEBUG_OPEN
1084 printk("block_til_ready after blocking: ttys%d, count = %d\n",
1085 ch
->line
, ch
->count
);
1089 /* FIXME: review to see if we need to use set_bit on these */
1090 ch
->asyncflags
|= ASYNC_NORMAL_ACTIVE
;
1094 static void setup_empty_event(struct tty_struct
*tty
)
1096 struct moxa_str
*ch
= tty
->driver_data
;
1097 unsigned long flags
;
1099 spin_lock_irqsave(&moxa_lock
, flags
);
1100 ch
->statusflags
|= EMPTYWAIT
;
1101 moxaEmptyTimer_on
[ch
->port
] = 0;
1102 del_timer(&moxaEmptyTimer
[ch
->port
]);
1103 moxaEmptyTimer
[ch
->port
].expires
= jiffies
+ HZ
;
1104 moxaEmptyTimer_on
[ch
->port
] = 1;
1105 add_timer(&moxaEmptyTimer
[ch
->port
]);
1106 spin_unlock_irqrestore(&moxa_lock
, flags
);
1109 static void check_xmit_empty(unsigned long data
)
1111 struct moxa_str
*ch
;
1113 ch
= (struct moxa_str
*) data
;
1114 moxaEmptyTimer_on
[ch
->port
] = 0;
1115 del_timer(&moxaEmptyTimer
[ch
->port
]);
1116 if (ch
->tty
&& (ch
->statusflags
& EMPTYWAIT
)) {
1117 if (MoxaPortTxQueue(ch
->port
) == 0) {
1118 ch
->statusflags
&= ~EMPTYWAIT
;
1119 tty_wakeup(ch
->tty
);
1122 moxaEmptyTimer
[ch
->port
].expires
= jiffies
+ HZ
;
1123 moxaEmptyTimer_on
[ch
->port
] = 1;
1124 add_timer(&moxaEmptyTimer
[ch
->port
]);
1126 ch
->statusflags
&= ~EMPTYWAIT
;
1129 static void shut_down(struct moxa_str
*ch
)
1131 struct tty_struct
*tp
;
1133 if (!(ch
->asyncflags
& ASYNC_INITIALIZED
))
1138 MoxaPortDisable(ch
->port
);
1141 * If we're a modem control device and HUPCL is on, drop RTS & DTR.
1143 if (tp
->termios
->c_cflag
& HUPCL
)
1144 MoxaPortLineCtrl(ch
->port
, 0, 0);
1146 ch
->asyncflags
&= ~ASYNC_INITIALIZED
;
1149 static void receive_data(struct moxa_str
*ch
)
1151 struct tty_struct
*tp
;
1153 unsigned long flags
;
1159 /**************************************************
1160 if ( !tp || !ts || !(ts->c_cflag & CREAD) ) {
1161 *****************************************************/
1163 MoxaPortFlushData(ch
->port
, 0);
1166 spin_lock_irqsave(&moxa_lock
, flags
);
1167 MoxaPortReadData(ch
->port
, tp
);
1168 spin_unlock_irqrestore(&moxa_lock
, flags
);
1169 tty_schedule_flip(tp
);
1172 #define Magic_code 0x404
1175 * System Configuration
1178 * for C218 BIOS initialization
1180 #define C218_ConfBase 0x800
1181 #define C218_status (C218_ConfBase + 0) /* BIOS running status */
1182 #define C218_diag (C218_ConfBase + 2) /* diagnostic status */
1183 #define C218_key (C218_ConfBase + 4) /* WORD (0x218 for C218) */
1184 #define C218DLoad_len (C218_ConfBase + 6) /* WORD */
1185 #define C218check_sum (C218_ConfBase + 8) /* BYTE */
1186 #define C218chksum_ok (C218_ConfBase + 0x0a) /* BYTE (1:ok) */
1187 #define C218_TestRx (C218_ConfBase + 0x10) /* 8 bytes for 8 ports */
1188 #define C218_TestTx (C218_ConfBase + 0x18) /* 8 bytes for 8 ports */
1189 #define C218_RXerr (C218_ConfBase + 0x20) /* 8 bytes for 8 ports */
1190 #define C218_ErrFlag (C218_ConfBase + 0x28) /* 8 bytes for 8 ports */
1192 #define C218_LoadBuf 0x0F00
1193 #define C218_KeyCode 0x218
1194 #define CP204J_KeyCode 0x204
1197 * for C320 BIOS initialization
1199 #define C320_ConfBase 0x800
1200 #define C320_LoadBuf 0x0f00
1201 #define STS_init 0x05 /* for C320_status */
1203 #define C320_status C320_ConfBase + 0 /* BIOS running status */
1204 #define C320_diag C320_ConfBase + 2 /* diagnostic status */
1205 #define C320_key C320_ConfBase + 4 /* WORD (0320H for C320) */
1206 #define C320DLoad_len C320_ConfBase + 6 /* WORD */
1207 #define C320check_sum C320_ConfBase + 8 /* WORD */
1208 #define C320chksum_ok C320_ConfBase + 0x0a /* WORD (1:ok) */
1209 #define C320bapi_len C320_ConfBase + 0x0c /* WORD */
1210 #define C320UART_no C320_ConfBase + 0x0e /* WORD */
1212 #define C320_KeyCode 0x320
1214 #define FixPage_addr 0x0000 /* starting addr of static page */
1215 #define DynPage_addr 0x2000 /* starting addr of dynamic page */
1216 #define C218_start 0x3000 /* starting addr of C218 BIOS prg */
1217 #define Control_reg 0x1ff0 /* select page and reset control */
1218 #define HW_reset 0x80
1223 #define FC_CardReset 0x80
1224 #define FC_ChannelReset 1 /* C320 firmware not supported */
1225 #define FC_EnableCH 2
1226 #define FC_DisableCH 3
1227 #define FC_SetParam 4
1228 #define FC_SetMode 5
1229 #define FC_SetRate 6
1230 #define FC_LineControl 7
1231 #define FC_LineStatus 8
1232 #define FC_XmitControl 9
1233 #define FC_FlushQueue 10
1234 #define FC_SendBreak 11
1235 #define FC_StopBreak 12
1236 #define FC_LoopbackON 13
1237 #define FC_LoopbackOFF 14
1238 #define FC_ClrIrqTable 15
1239 #define FC_SendXon 16
1240 #define FC_SetTermIrq 17 /* C320 firmware not supported */
1241 #define FC_SetCntIrq 18 /* C320 firmware not supported */
1242 #define FC_SetBreakIrq 19
1243 #define FC_SetLineIrq 20
1244 #define FC_SetFlowCtl 21
1245 #define FC_GenIrq 22
1246 #define FC_InCD180 23
1247 #define FC_OutCD180 24
1248 #define FC_InUARTreg 23
1249 #define FC_OutUARTreg 24
1250 #define FC_SetXonXoff 25
1251 #define FC_OutCD180CCR 26
1252 #define FC_ExtIQueue 27
1253 #define FC_ExtOQueue 28
1254 #define FC_ClrLineIrq 29
1255 #define FC_HWFlowCtl 30
1256 #define FC_GetClockRate 35
1257 #define FC_SetBaud 36
1258 #define FC_SetDataMode 41
1259 #define FC_GetCCSR 43
1260 #define FC_GetDataError 45
1261 #define FC_RxControl 50
1262 #define FC_ImmSend 51
1263 #define FC_SetXonState 52
1264 #define FC_SetXoffState 53
1265 #define FC_SetRxFIFOTrig 54
1266 #define FC_SetTxFIFOCnt 55
1267 #define FC_UnixRate 56
1268 #define FC_UnixResetTimer 57
1270 #define RxFIFOTrig1 0
1271 #define RxFIFOTrig4 1
1272 #define RxFIFOTrig8 2
1273 #define RxFIFOTrig14 3
1278 #define DRAM_global 0
1279 #define INT_data (DRAM_global + 0)
1280 #define Config_base (DRAM_global + 0x108)
1282 #define IRQindex (INT_data + 0)
1283 #define IRQpending (INT_data + 4)
1284 #define IRQtable (INT_data + 8)
1289 #define IntrRx 0x01 /* receiver data O.K. */
1290 #define IntrTx 0x02 /* transmit buffer empty */
1291 #define IntrFunc 0x04 /* function complete */
1292 #define IntrBreak 0x08 /* received break */
1293 #define IntrLine 0x10 /* line status change
1295 #define IntrIntr 0x20 /* received INTR code */
1296 #define IntrQuit 0x40 /* received QUIT code */
1297 #define IntrEOF 0x80 /* received EOF code */
1299 #define IntrRxTrigger 0x100 /* rx data count reach tigger value */
1300 #define IntrTxTrigger 0x200 /* tx data count below trigger value */
1302 #define Magic_no (Config_base + 0)
1303 #define Card_model_no (Config_base + 2)
1304 #define Total_ports (Config_base + 4)
1305 #define Module_cnt (Config_base + 8)
1306 #define Module_no (Config_base + 10)
1307 #define Timer_10ms (Config_base + 14)
1308 #define Disable_IRQ (Config_base + 20)
1309 #define TMS320_PORT1 (Config_base + 22)
1310 #define TMS320_PORT2 (Config_base + 24)
1311 #define TMS320_CLOCK (Config_base + 26)
1314 * DATA BUFFER in DRAM
1316 #define Extern_table 0x400 /* Base address of the external table
1317 (24 words * 64) total 3K bytes
1318 (24 words * 128) total 6K bytes */
1319 #define Extern_size 0x60 /* 96 bytes */
1320 #define RXrptr 0x00 /* read pointer for RX buffer */
1321 #define RXwptr 0x02 /* write pointer for RX buffer */
1322 #define TXrptr 0x04 /* read pointer for TX buffer */
1323 #define TXwptr 0x06 /* write pointer for TX buffer */
1324 #define HostStat 0x08 /* IRQ flag and general flag */
1325 #define FlagStat 0x0A
1326 #define FlowControl 0x0C /* B7 B6 B5 B4 B3 B2 B1 B0 */
1327 /* x x x x | | | | */
1328 /* | | | + CTS flow */
1329 /* | | +--- RTS flow */
1330 /* | +------ TX Xon/Xoff */
1331 /* +--------- RX Xon/Xoff */
1332 #define Break_cnt 0x0E /* received break count */
1333 #define CD180TXirq 0x10 /* if non-0: enable TX irq */
1334 #define RX_mask 0x12
1335 #define TX_mask 0x14
1336 #define Ofs_rxb 0x16
1337 #define Ofs_txb 0x18
1338 #define Page_rxb 0x1A
1339 #define Page_txb 0x1C
1340 #define EndPage_rxb 0x1E
1341 #define EndPage_txb 0x20
1342 #define Data_error 0x22
1343 #define RxTrigger 0x28
1344 #define TxTrigger 0x2a
1346 #define rRXwptr 0x34
1347 #define Low_water 0x36
1349 #define FuncCode 0x40
1350 #define FuncArg 0x42
1351 #define FuncArg1 0x44
1353 #define C218rx_size 0x2000 /* 8K bytes */
1354 #define C218tx_size 0x8000 /* 32K bytes */
1356 #define C218rx_mask (C218rx_size - 1)
1357 #define C218tx_mask (C218tx_size - 1)
1359 #define C320p8rx_size 0x2000
1360 #define C320p8tx_size 0x8000
1361 #define C320p8rx_mask (C320p8rx_size - 1)
1362 #define C320p8tx_mask (C320p8tx_size - 1)
1364 #define C320p16rx_size 0x2000
1365 #define C320p16tx_size 0x4000
1366 #define C320p16rx_mask (C320p16rx_size - 1)
1367 #define C320p16tx_mask (C320p16tx_size - 1)
1369 #define C320p24rx_size 0x2000
1370 #define C320p24tx_size 0x2000
1371 #define C320p24rx_mask (C320p24rx_size - 1)
1372 #define C320p24tx_mask (C320p24tx_size - 1)
1374 #define C320p32rx_size 0x1000
1375 #define C320p32tx_size 0x1000
1376 #define C320p32rx_mask (C320p32rx_size - 1)
1377 #define C320p32tx_mask (C320p32tx_size - 1)
1379 #define Page_size 0x2000
1380 #define Page_mask (Page_size - 1)
1381 #define C218rx_spage 3
1382 #define C218tx_spage 4
1383 #define C218rx_pageno 1
1384 #define C218tx_pageno 4
1385 #define C218buf_pageno 5
1387 #define C320p8rx_spage 3
1388 #define C320p8tx_spage 4
1389 #define C320p8rx_pgno 1
1390 #define C320p8tx_pgno 4
1391 #define C320p8buf_pgno 5
1393 #define C320p16rx_spage 3
1394 #define C320p16tx_spage 4
1395 #define C320p16rx_pgno 1
1396 #define C320p16tx_pgno 2
1397 #define C320p16buf_pgno 3
1399 #define C320p24rx_spage 3
1400 #define C320p24tx_spage 4
1401 #define C320p24rx_pgno 1
1402 #define C320p24tx_pgno 1
1403 #define C320p24buf_pgno 2
1405 #define C320p32rx_spage 3
1406 #define C320p32tx_ofs C320p32rx_size
1407 #define C320p32tx_spage 3
1408 #define C320p32buf_pgno 1
1413 #define WakeupRx 0x01
1414 #define WakeupTx 0x02
1415 #define WakeupBreak 0x08
1416 #define WakeupLine 0x10
1417 #define WakeupIntr 0x20
1418 #define WakeupQuit 0x40
1419 #define WakeupEOF 0x80 /* used in VTIME control */
1420 #define WakeupRxTrigger 0x100
1421 #define WakeupTxTrigger 0x200
1425 #define Rx_over 0x01
1426 #define Xoff_state 0x02
1427 #define Tx_flowOff 0x04
1428 #define Tx_enable 0x08
1429 #define CTS_state 0x10
1430 #define DSR_state 0x20
1431 #define DCD_state 0x80
1435 #define CTS_FlowCtl 1
1436 #define RTS_FlowCtl 2
1437 #define Tx_FlowCtl 4
1438 #define Rx_FlowCtl 8
1439 #define IXM_IXANY 0x10
1441 #define LowWater 128
1449 /* mode definition */
1455 #define MX_STOP1 0x00
1456 #define MX_STOP15 0x04
1457 #define MX_STOP2 0x08
1459 #define MX_PARNONE 0x00
1460 #define MX_PAREVEN 0x40
1461 #define MX_PARODD 0xC0
1466 #define QueryPort MAX_PORTS
1472 int rxcnt
[MAX_PORTS
];
1473 int txcnt
[MAX_PORTS
];
1475 typedef struct mon_str mon_st
;
1477 #define DCD_changed 0x01
1478 #define DCD_oldstate 0x80
1480 static unsigned char moxaBuff
[10240];
1481 static void __iomem
*moxaIntNdx
[MAX_BOARDS
];
1482 static void __iomem
*moxaIntPend
[MAX_BOARDS
];
1483 static void __iomem
*moxaIntTable
[MAX_BOARDS
];
1484 static char moxaChkPort
[MAX_PORTS
];
1485 static char moxaLineCtrl
[MAX_PORTS
];
1486 static void __iomem
*moxaTableAddr
[MAX_PORTS
];
1487 static long moxaCurBaud
[MAX_PORTS
];
1488 static char moxaDCDState
[MAX_PORTS
];
1489 static char moxaLowChkFlag
[MAX_PORTS
];
1490 static int moxaLowWaterChk
;
1491 static int moxaCard
;
1492 static mon_st moxaLog
;
1493 static int moxaFuncTout
;
1494 static ushort moxaBreakCnt
[MAX_PORTS
];
1496 static void moxadelay(int);
1497 static void moxafunc(void __iomem
*, int, ushort
);
1498 static void wait_finish(void __iomem
*);
1499 static void low_water_check(void __iomem
*);
1500 static int moxaloadbios(int, unsigned char __user
*, int);
1501 static int moxafindcard(int);
1502 static int moxaload320b(int, unsigned char __user
*, int);
1503 static int moxaloadcode(int, unsigned char __user
*, int);
1504 static int moxaloadc218(int, void __iomem
*, int);
1505 static int moxaloadc320(int, void __iomem
*, int, int *);
1507 /*****************************************************************************
1508 * Driver level functions: *
1509 * 1. MoxaDriverInit(void); *
1510 * 2. MoxaDriverIoctl(unsigned int cmd, unsigned long arg, int port); *
1511 * 3. MoxaDriverPoll(void); *
1512 *****************************************************************************/
1513 void MoxaDriverInit(void)
1517 moxaFuncTout
= HZ
/ 2; /* 500 mini-seconds */
1520 moxaLowWaterChk
= 0;
1521 for (i
= 0; i
< MAX_PORTS
; i
++) {
1523 moxaLowChkFlag
[i
] = 0;
1524 moxaLineCtrl
[i
] = 0;
1525 moxaLog
.rxcnt
[i
] = 0;
1526 moxaLog
.txcnt
[i
] = 0;
1531 #define MOXA_GET_IQUEUE (MOXA + 1) /* get input buffered count */
1532 #define MOXA_GET_OQUEUE (MOXA + 2) /* get output buffered count */
1533 #define MOXA_INIT_DRIVER (MOXA + 6) /* moxaCard=0 */
1534 #define MOXA_LOAD_BIOS (MOXA + 9) /* download BIOS */
1535 #define MOXA_FIND_BOARD (MOXA + 10) /* Check if MOXA card exist? */
1536 #define MOXA_LOAD_C320B (MOXA + 11) /* download 320B firmware */
1537 #define MOXA_LOAD_CODE (MOXA + 12) /* download firmware */
1538 #define MOXA_GETDATACOUNT (MOXA + 23)
1539 #define MOXA_GET_IOQUEUE (MOXA + 27)
1540 #define MOXA_FLUSH_QUEUE (MOXA + 28)
1541 #define MOXA_GET_CONF (MOXA + 35) /* configuration */
1542 #define MOXA_GET_MAJOR (MOXA + 63)
1543 #define MOXA_GET_CUMAJOR (MOXA + 64)
1544 #define MOXA_GETMSTATUS (MOXA + 65)
1558 static struct moxaq_str temp_queue
[MAX_PORTS
];
1559 static struct dl_str dltmp
;
1561 void MoxaPortFlushData(int port
, int mode
)
1563 void __iomem
*ofsAddr
;
1564 if ((mode
< 0) || (mode
> 2))
1566 ofsAddr
= moxaTableAddr
[port
];
1567 moxafunc(ofsAddr
, FC_FlushQueue
, mode
);
1569 moxaLowChkFlag
[port
] = 0;
1570 low_water_check(ofsAddr
);
1574 int MoxaDriverIoctl(unsigned int cmd
, unsigned long arg
, int port
)
1578 int MoxaPortTxQueue(int), MoxaPortRxQueue(int);
1579 void __user
*argp
= (void __user
*)arg
;
1581 if (port
== QueryPort
) {
1582 if ((cmd
!= MOXA_GET_CONF
) && (cmd
!= MOXA_INIT_DRIVER
) &&
1583 (cmd
!= MOXA_LOAD_BIOS
) && (cmd
!= MOXA_FIND_BOARD
) && (cmd
!= MOXA_LOAD_C320B
) &&
1584 (cmd
!= MOXA_LOAD_CODE
) && (cmd
!= MOXA_GETDATACOUNT
) &&
1585 (cmd
!= MOXA_GET_IOQUEUE
) && (cmd
!= MOXA_GET_MAJOR
) &&
1586 (cmd
!= MOXA_GET_CUMAJOR
) && (cmd
!= MOXA_GETMSTATUS
))
1591 if(copy_to_user(argp
, &moxa_boards
, MAX_BOARDS
* sizeof(moxa_board_conf
)))
1594 case MOXA_INIT_DRIVER
:
1595 if ((int) arg
== 0x404)
1598 case MOXA_GETDATACOUNT
:
1599 moxaLog
.tick
= jiffies
;
1600 if(copy_to_user(argp
, &moxaLog
, sizeof(mon_st
)))
1603 case MOXA_FLUSH_QUEUE
:
1604 MoxaPortFlushData(port
, arg
);
1606 case MOXA_GET_IOQUEUE
:
1607 for (i
= 0; i
< MAX_PORTS
; i
++) {
1608 if (moxaChkPort
[i
]) {
1609 temp_queue
[i
].inq
= MoxaPortRxQueue(i
);
1610 temp_queue
[i
].outq
= MoxaPortTxQueue(i
);
1613 if(copy_to_user(argp
, temp_queue
, sizeof(struct moxaq_str
) * MAX_PORTS
))
1616 case MOXA_GET_OQUEUE
:
1617 i
= MoxaPortTxQueue(port
);
1618 return put_user(i
, (unsigned long __user
*)argp
);
1619 case MOXA_GET_IQUEUE
:
1620 i
= MoxaPortRxQueue(port
);
1621 return put_user(i
, (unsigned long __user
*)argp
);
1622 case MOXA_GET_MAJOR
:
1623 if(copy_to_user(argp
, &ttymajor
, sizeof(int)))
1626 case MOXA_GET_CUMAJOR
:
1628 if(copy_to_user(argp
, &i
, sizeof(int)))
1631 case MOXA_GETMSTATUS
:
1632 for (i
= 0; i
< MAX_PORTS
; i
++) {
1634 GMStatus
[i
].dcd
= 0;
1635 GMStatus
[i
].dsr
= 0;
1636 GMStatus
[i
].cts
= 0;
1637 if (!moxaChkPort
[i
]) {
1640 status
= MoxaPortLineStatus(moxaChannels
[i
].port
);
1642 GMStatus
[i
].cts
= 1;
1644 GMStatus
[i
].dsr
= 1;
1646 GMStatus
[i
].dcd
= 1;
1649 if (!moxaChannels
[i
].tty
|| !moxaChannels
[i
].tty
->termios
)
1650 GMStatus
[i
].cflag
= moxaChannels
[i
].cflag
;
1652 GMStatus
[i
].cflag
= moxaChannels
[i
].tty
->termios
->c_cflag
;
1654 if(copy_to_user(argp
, GMStatus
, sizeof(struct mxser_mstatus
) * MAX_PORTS
))
1658 return (-ENOIOCTLCMD
);
1659 case MOXA_LOAD_BIOS
:
1660 case MOXA_FIND_BOARD
:
1661 case MOXA_LOAD_C320B
:
1662 case MOXA_LOAD_CODE
:
1663 if (!capable(CAP_SYS_RAWIO
))
1668 if(copy_from_user(&dltmp
, argp
, sizeof(struct dl_str
)))
1670 if(dltmp
.cardno
< 0 || dltmp
.cardno
>= MAX_BOARDS
)
1675 case MOXA_LOAD_BIOS
:
1676 i
= moxaloadbios(dltmp
.cardno
, dltmp
.buf
, dltmp
.len
);
1678 case MOXA_FIND_BOARD
:
1679 return moxafindcard(dltmp
.cardno
);
1680 case MOXA_LOAD_C320B
:
1681 moxaload320b(dltmp
.cardno
, dltmp
.buf
, dltmp
.len
);
1682 default: /* to keep gcc happy */
1684 case MOXA_LOAD_CODE
:
1685 i
= moxaloadcode(dltmp
.cardno
, dltmp
.buf
, dltmp
.len
);
1693 int MoxaDriverPoll(void)
1695 register ushort temp
;
1697 void __iomem
*ofsAddr
;
1703 for (card
= 0; card
< MAX_BOARDS
; card
++) {
1704 if (loadstat
[card
] == 0)
1706 if ((ports
= moxa_boards
[card
].numPorts
) == 0)
1708 if (readb(moxaIntPend
[card
]) == 0xff) {
1709 ip
= moxaIntTable
[card
] + readb(moxaIntNdx
[card
]);
1710 p
= card
* MAX_PORTS_PER_BOARD
;
1712 for (port
= 0; port
< ports
; port
+= 2, p
++) {
1713 if ((temp
= readw(ip
+ port
)) != 0) {
1714 writew(0, ip
+ port
);
1715 ofsAddr
= moxaTableAddr
[p
];
1717 writew(readw(ofsAddr
+ HostStat
) & ~WakeupTx
, ofsAddr
+ HostStat
);
1718 if (temp
& IntrBreak
) {
1721 if (temp
& IntrLine
) {
1722 if (readb(ofsAddr
+ FlagStat
) & DCD_state
) {
1723 if ((moxaDCDState
[p
] & DCD_oldstate
) == 0)
1724 moxaDCDState
[p
] = (DCD_oldstate
|
1727 if (moxaDCDState
[p
] & DCD_oldstate
)
1728 moxaDCDState
[p
] = DCD_changed
;
1733 writeb(0, moxaIntPend
[card
]);
1735 if (moxaLowWaterChk
) {
1736 p
= card
* MAX_PORTS_PER_BOARD
;
1737 for (port
= 0; port
< ports
; port
++, p
++) {
1738 if (moxaLowChkFlag
[p
]) {
1739 moxaLowChkFlag
[p
] = 0;
1740 ofsAddr
= moxaTableAddr
[p
];
1741 low_water_check(ofsAddr
);
1746 moxaLowWaterChk
= 0;
1750 /*****************************************************************************
1751 * Card level function: *
1752 * 1. MoxaPortsOfCard(int cardno); *
1753 *****************************************************************************/
1754 int MoxaPortsOfCard(int cardno
)
1757 if (moxa_boards
[cardno
].boardType
== 0)
1759 return (moxa_boards
[cardno
].numPorts
);
1762 /*****************************************************************************
1763 * Port level functions: *
1764 * 1. MoxaPortIsValid(int port); *
1765 * 2. MoxaPortEnable(int port); *
1766 * 3. MoxaPortDisable(int port); *
1767 * 4. MoxaPortGetMaxBaud(int port); *
1768 * 5. MoxaPortGetCurBaud(int port); *
1769 * 6. MoxaPortSetBaud(int port, long baud); *
1770 * 7. MoxaPortSetMode(int port, int databit, int stopbit, int parity); *
1771 * 8. MoxaPortSetTermio(int port, unsigned char *termio); *
1772 * 9. MoxaPortGetLineOut(int port, int *dtrState, int *rtsState); *
1773 * 10. MoxaPortLineCtrl(int port, int dtrState, int rtsState); *
1774 * 11. MoxaPortFlowCtrl(int port, int rts, int cts, int rx, int tx,int xany); *
1775 * 12. MoxaPortLineStatus(int port); *
1776 * 13. MoxaPortDCDChange(int port); *
1777 * 14. MoxaPortDCDON(int port); *
1778 * 15. MoxaPortFlushData(int port, int mode); *
1779 * 16. MoxaPortWriteData(int port, unsigned char * buffer, int length); *
1780 * 17. MoxaPortReadData(int port, struct tty_struct *tty); *
1781 * 18. MoxaPortTxBufSize(int port); *
1782 * 19. MoxaPortRxBufSize(int port); *
1783 * 20. MoxaPortTxQueue(int port); *
1784 * 21. MoxaPortTxFree(int port); *
1785 * 22. MoxaPortRxQueue(int port); *
1786 * 23. MoxaPortRxFree(int port); *
1787 * 24. MoxaPortTxDisable(int port); *
1788 * 25. MoxaPortTxEnable(int port); *
1789 * 26. MoxaPortGetBrkCnt(int port); *
1790 * 27. MoxaPortResetBrkCnt(int port); *
1791 * 28. MoxaPortSetXonXoff(int port, int xonValue, int xoffValue); *
1792 * 29. MoxaPortIsTxHold(int port); *
1793 * 30. MoxaPortSendBreak(int port, int ticks); *
1794 *****************************************************************************/
1796 * Moxa Port Number Description:
1798 * MOXA serial driver supports up to 4 MOXA-C218/C320 boards. And,
1799 * the port number using in MOXA driver functions will be 0 to 31 for
1800 * first MOXA board, 32 to 63 for second, 64 to 95 for third and 96
1801 * to 127 for fourth. For example, if you setup three MOXA boards,
1802 * first board is C218, second board is C320-16 and third board is
1803 * C320-32. The port number of first board (C218 - 8 ports) is from
1804 * 0 to 7. The port number of second board (C320 - 16 ports) is form
1805 * 32 to 47. The port number of third board (C320 - 32 ports) is from
1806 * 64 to 95. And those port numbers form 8 to 31, 48 to 63 and 96 to
1807 * 127 will be invalid.
1810 * Moxa Functions Description:
1812 * Function 1: Driver initialization routine, this routine must be
1813 * called when initialized driver.
1815 * void MoxaDriverInit();
1818 * Function 2: Moxa driver private IOCTL command processing.
1820 * int MoxaDriverIoctl(unsigned int cmd, unsigned long arg, int port);
1822 * unsigned int cmd : IOCTL command
1823 * unsigned long arg : IOCTL argument
1824 * int port : port number (0 - 127)
1831 * Function 3: Moxa driver polling process routine.
1833 * int MoxaDriverPoll(void);
1835 * return: 0 ; polling O.K.
1836 * -1 : no any Moxa card.
1839 * Function 4: Get the ports of this card.
1841 * int MoxaPortsOfCard(int cardno);
1843 * int cardno : card number (0 - 3)
1845 * return: 0 : this card is invalid
1849 * Function 5: Check this port is valid or invalid
1851 * int MoxaPortIsValid(int port);
1852 * int port : port number (0 - 127, ref port description)
1854 * return: 0 : this port is invalid
1855 * 1 : this port is valid
1858 * Function 6: Enable this port to start Tx/Rx data.
1860 * void MoxaPortEnable(int port);
1861 * int port : port number (0 - 127)
1864 * Function 7: Disable this port
1866 * void MoxaPortDisable(int port);
1867 * int port : port number (0 - 127)
1870 * Function 8: Get the maximun available baud rate of this port.
1872 * long MoxaPortGetMaxBaud(int port);
1873 * int port : port number (0 - 127)
1875 * return: 0 : this port is invalid
1876 * 38400/57600/115200 bps
1879 * Function 9: Get the current baud rate of this port.
1881 * long MoxaPortGetCurBaud(int port);
1882 * int port : port number (0 - 127)
1884 * return: 0 : this port is invalid
1888 * Function 10: Setting baud rate of this port.
1890 * long MoxaPortSetBaud(int port, long baud);
1891 * int port : port number (0 - 127)
1892 * long baud : baud rate (50 - 115200)
1894 * return: 0 : this port is invalid or baud < 50
1895 * 50 - 115200 : the real baud rate set to the port, if
1896 * the argument baud is large than maximun
1897 * available baud rate, the real setting
1898 * baud rate will be the maximun baud rate.
1901 * Function 11: Setting the data-bits/stop-bits/parity of this port
1903 * int MoxaPortSetMode(int port, int databits, int stopbits, int parity);
1904 * int port : port number (0 - 127)
1905 * int databits : data bits (8/7/6/5)
1906 * int stopbits : stop bits (2/1/0, 0 show 1.5 stop bits)
1907 int parity : parity (0:None,1:Odd,2:Even,3:Mark,4:Space)
1909 * return: -1 : invalid parameter
1913 * Function 12: Configure the port.
1915 * int MoxaPortSetTermio(int port, struct termios *termio, speed_t baud);
1916 * int port : port number (0 - 127)
1917 * struct termios * termio : termio structure pointer
1918 * speed_t baud : baud rate
1920 * return: -1 : this port is invalid or termio == NULL
1924 * Function 13: Get the DTR/RTS state of this port.
1926 * int MoxaPortGetLineOut(int port, int *dtrState, int *rtsState);
1927 * int port : port number (0 - 127)
1928 * int * dtrState : pointer to INT to receive the current DTR
1929 * state. (if NULL, this function will not
1930 * write to this address)
1931 * int * rtsState : pointer to INT to receive the current RTS
1932 * state. (if NULL, this function will not
1933 * write to this address)
1935 * return: -1 : this port is invalid
1939 * Function 14: Setting the DTR/RTS output state of this port.
1941 * void MoxaPortLineCtrl(int port, int dtrState, int rtsState);
1942 * int port : port number (0 - 127)
1943 * int dtrState : DTR output state (0: off, 1: on)
1944 * int rtsState : RTS output state (0: off, 1: on)
1947 * Function 15: Setting the flow control of this port.
1949 * void MoxaPortFlowCtrl(int port, int rtsFlow, int ctsFlow, int rxFlow,
1950 * int txFlow,int xany);
1951 * int port : port number (0 - 127)
1952 * int rtsFlow : H/W RTS flow control (0: no, 1: yes)
1953 * int ctsFlow : H/W CTS flow control (0: no, 1: yes)
1954 * int rxFlow : S/W Rx XON/XOFF flow control (0: no, 1: yes)
1955 * int txFlow : S/W Tx XON/XOFF flow control (0: no, 1: yes)
1956 * int xany : S/W XANY flow control (0: no, 1: yes)
1959 * Function 16: Get ths line status of this port
1961 * int MoxaPortLineStatus(int port);
1962 * int port : port number (0 - 127)
1964 * return: Bit 0 - CTS state (0: off, 1: on)
1965 * Bit 1 - DSR state (0: off, 1: on)
1966 * Bit 2 - DCD state (0: off, 1: on)
1969 * Function 17: Check the DCD state has changed since the last read
1972 * int MoxaPortDCDChange(int port);
1973 * int port : port number (0 - 127)
1975 * return: 0 : no changed
1976 * 1 : DCD has changed
1979 * Function 18: Check ths current DCD state is ON or not.
1981 * int MoxaPortDCDON(int port);
1982 * int port : port number (0 - 127)
1984 * return: 0 : DCD off
1988 * Function 19: Flush the Rx/Tx buffer data of this port.
1990 * void MoxaPortFlushData(int port, int mode);
1991 * int port : port number (0 - 127)
1993 * 0 : flush the Rx buffer
1994 * 1 : flush the Tx buffer
1995 * 2 : flush the Rx and Tx buffer
1998 * Function 20: Write data.
2000 * int MoxaPortWriteData(int port, unsigned char * buffer, int length);
2001 * int port : port number (0 - 127)
2002 * unsigned char * buffer : pointer to write data buffer.
2003 * int length : write data length
2005 * return: 0 - length : real write data length
2008 * Function 21: Read data.
2010 * int MoxaPortReadData(int port, struct tty_struct *tty);
2011 * int port : port number (0 - 127)
2012 * struct tty_struct *tty : tty for data
2014 * return: 0 - length : real read data length
2017 * Function 22: Get the Tx buffer size of this port
2019 * int MoxaPortTxBufSize(int port);
2020 * int port : port number (0 - 127)
2022 * return: .. : Tx buffer size
2025 * Function 23: Get the Rx buffer size of this port
2027 * int MoxaPortRxBufSize(int port);
2028 * int port : port number (0 - 127)
2030 * return: .. : Rx buffer size
2033 * Function 24: Get the Tx buffer current queued data bytes
2035 * int MoxaPortTxQueue(int port);
2036 * int port : port number (0 - 127)
2038 * return: .. : Tx buffer current queued data bytes
2041 * Function 25: Get the Tx buffer current free space
2043 * int MoxaPortTxFree(int port);
2044 * int port : port number (0 - 127)
2046 * return: .. : Tx buffer current free space
2049 * Function 26: Get the Rx buffer current queued data bytes
2051 * int MoxaPortRxQueue(int port);
2052 * int port : port number (0 - 127)
2054 * return: .. : Rx buffer current queued data bytes
2057 * Function 27: Get the Rx buffer current free space
2059 * int MoxaPortRxFree(int port);
2060 * int port : port number (0 - 127)
2062 * return: .. : Rx buffer current free space
2065 * Function 28: Disable port data transmission.
2067 * void MoxaPortTxDisable(int port);
2068 * int port : port number (0 - 127)
2071 * Function 29: Enable port data transmission.
2073 * void MoxaPortTxEnable(int port);
2074 * int port : port number (0 - 127)
2077 * Function 30: Get the received BREAK signal count.
2079 * int MoxaPortGetBrkCnt(int port);
2080 * int port : port number (0 - 127)
2082 * return: 0 - .. : BREAK signal count
2085 * Function 31: Get the received BREAK signal count and reset it.
2087 * int MoxaPortResetBrkCnt(int port);
2088 * int port : port number (0 - 127)
2090 * return: 0 - .. : BREAK signal count
2093 * Function 32: Set the S/W flow control new XON/XOFF value, default
2094 * XON is 0x11 & XOFF is 0x13.
2096 * void MoxaPortSetXonXoff(int port, int xonValue, int xoffValue);
2097 * int port : port number (0 - 127)
2098 * int xonValue : new XON value (0 - 255)
2099 * int xoffValue : new XOFF value (0 - 255)
2102 * Function 33: Check this port's transmission is hold by remote site
2103 * because the flow control.
2105 * int MoxaPortIsTxHold(int port);
2106 * int port : port number (0 - 127)
2108 * return: 0 : normal
2109 * 1 : hold by remote site
2112 * Function 34: Send out a BREAK signal.
2114 * void MoxaPortSendBreak(int port, int ms100);
2115 * int port : port number (0 - 127)
2116 * int ms100 : break signal time interval.
2117 * unit: 100 mini-second. if ms100 == 0, it will
2118 * send out a about 250 ms BREAK signal.
2121 int MoxaPortIsValid(int port
)
2126 if (moxaChkPort
[port
] == 0)
2131 void MoxaPortEnable(int port
)
2133 void __iomem
*ofsAddr
;
2134 int MoxaPortLineStatus(int);
2135 short lowwater
= 512;
2137 ofsAddr
= moxaTableAddr
[port
];
2138 writew(lowwater
, ofsAddr
+ Low_water
);
2139 moxaBreakCnt
[port
] = 0;
2140 if ((moxa_boards
[port
/ MAX_PORTS_PER_BOARD
].boardType
== MOXA_BOARD_C320_ISA
) ||
2141 (moxa_boards
[port
/ MAX_PORTS_PER_BOARD
].boardType
== MOXA_BOARD_C320_PCI
)) {
2142 moxafunc(ofsAddr
, FC_SetBreakIrq
, 0);
2144 writew(readw(ofsAddr
+ HostStat
) | WakeupBreak
, ofsAddr
+ HostStat
);
2147 moxafunc(ofsAddr
, FC_SetLineIrq
, Magic_code
);
2148 moxafunc(ofsAddr
, FC_FlushQueue
, 2);
2150 moxafunc(ofsAddr
, FC_EnableCH
, Magic_code
);
2151 MoxaPortLineStatus(port
);
2154 void MoxaPortDisable(int port
)
2156 void __iomem
*ofsAddr
= moxaTableAddr
[port
];
2158 moxafunc(ofsAddr
, FC_SetFlowCtl
, 0); /* disable flow control */
2159 moxafunc(ofsAddr
, FC_ClrLineIrq
, Magic_code
);
2160 writew(0, ofsAddr
+ HostStat
);
2161 moxafunc(ofsAddr
, FC_DisableCH
, Magic_code
);
2164 long MoxaPortGetMaxBaud(int port
)
2166 if ((moxa_boards
[port
/ MAX_PORTS_PER_BOARD
].boardType
== MOXA_BOARD_C320_ISA
) ||
2167 (moxa_boards
[port
/ MAX_PORTS_PER_BOARD
].boardType
== MOXA_BOARD_C320_PCI
))
2174 long MoxaPortSetBaud(int port
, long baud
)
2176 void __iomem
*ofsAddr
;
2180 if ((baud
< 50L) || ((max
= MoxaPortGetMaxBaud(port
)) == 0))
2182 ofsAddr
= moxaTableAddr
[port
];
2186 clock
= 614400L; /* for 9.8304 Mhz : max. 38400 bps */
2187 else if (max
== 57600L)
2188 clock
= 691200L; /* for 11.0592 Mhz : max. 57600 bps */
2190 clock
= 921600L; /* for 14.7456 Mhz : max. 115200 bps */
2192 moxafunc(ofsAddr
, FC_SetBaud
, val
);
2194 moxaCurBaud
[port
] = baud
;
2198 int MoxaPortSetTermio(int port
, struct termios
*termio
, speed_t baud
)
2200 void __iomem
*ofsAddr
;
2204 if (moxaChkPort
[port
] == 0 || termio
== 0)
2206 ofsAddr
= moxaTableAddr
[port
];
2207 cflag
= termio
->c_cflag
; /* termio->c_cflag */
2209 mode
= termio
->c_cflag
& CSIZE
;
2212 else if (mode
== CS6
)
2214 else if (mode
== CS7
)
2216 else if (mode
== CS8
)
2219 if (termio
->c_cflag
& CSTOPB
) {
2227 if (termio
->c_cflag
& PARENB
) {
2228 if (termio
->c_cflag
& PARODD
)
2235 moxafunc(ofsAddr
, FC_SetDataMode
, (ushort
) mode
);
2237 if ((moxa_boards
[port
/ MAX_PORTS_PER_BOARD
].boardType
== MOXA_BOARD_C320_ISA
) ||
2238 (moxa_boards
[port
/ MAX_PORTS_PER_BOARD
].boardType
== MOXA_BOARD_C320_PCI
)) {
2239 if (baud
>= 921600L)
2242 MoxaPortSetBaud(port
, baud
);
2244 if (termio
->c_iflag
& (IXON
| IXOFF
| IXANY
)) {
2245 writeb(termio
->c_cc
[VSTART
], ofsAddr
+ FuncArg
);
2246 writeb(termio
->c_cc
[VSTOP
], ofsAddr
+ FuncArg1
);
2247 writeb(FC_SetXonXoff
, ofsAddr
+ FuncCode
);
2248 wait_finish(ofsAddr
);
2254 int MoxaPortGetLineOut(int port
, int *dtrState
, int *rtsState
)
2257 if (!MoxaPortIsValid(port
))
2260 if (moxaLineCtrl
[port
] & DTR_ON
)
2266 if (moxaLineCtrl
[port
] & RTS_ON
)
2274 void MoxaPortLineCtrl(int port
, int dtr
, int rts
)
2276 void __iomem
*ofsAddr
;
2279 ofsAddr
= moxaTableAddr
[port
];
2285 moxaLineCtrl
[port
] = mode
;
2286 moxafunc(ofsAddr
, FC_LineControl
, mode
);
2289 void MoxaPortFlowCtrl(int port
, int rts
, int cts
, int txflow
, int rxflow
, int txany
)
2291 void __iomem
*ofsAddr
;
2294 ofsAddr
= moxaTableAddr
[port
];
2297 mode
|= RTS_FlowCtl
;
2299 mode
|= CTS_FlowCtl
;
2306 moxafunc(ofsAddr
, FC_SetFlowCtl
, mode
);
2309 int MoxaPortLineStatus(int port
)
2311 void __iomem
*ofsAddr
;
2314 ofsAddr
= moxaTableAddr
[port
];
2315 if ((moxa_boards
[port
/ MAX_PORTS_PER_BOARD
].boardType
== MOXA_BOARD_C320_ISA
) ||
2316 (moxa_boards
[port
/ MAX_PORTS_PER_BOARD
].boardType
== MOXA_BOARD_C320_PCI
)) {
2317 moxafunc(ofsAddr
, FC_LineStatus
, 0);
2318 val
= readw(ofsAddr
+ FuncArg
);
2320 val
= readw(ofsAddr
+ FlagStat
) >> 4;
2325 if ((moxaDCDState
[port
] & DCD_oldstate
) == 0)
2326 moxaDCDState
[port
] = (DCD_oldstate
| DCD_changed
);
2328 if (moxaDCDState
[port
] & DCD_oldstate
)
2329 moxaDCDState
[port
] = DCD_changed
;
2335 int MoxaPortDCDChange(int port
)
2339 if (moxaChkPort
[port
] == 0)
2341 n
= moxaDCDState
[port
];
2342 moxaDCDState
[port
] &= ~DCD_changed
;
2347 int MoxaPortDCDON(int port
)
2351 if (moxaChkPort
[port
] == 0)
2353 if (moxaDCDState
[port
] & DCD_oldstate
)
2362 int MoxaDumpMem(int port, unsigned char * buffer, int len)
2365 unsigned long baseAddr,ofsAddr,ofs;
2367 baseAddr = moxaBaseAddr[port / MAX_PORTS_PER_BOARD];
2368 ofs = baseAddr + DynPage_addr + pageofs;
2371 for (i = 0; i < len; i++)
2372 buffer[i] = readb(ofs+i);
2377 int MoxaPortWriteData(int port
, unsigned char * buffer
, int len
)
2382 ushort head
, tx_mask
, spage
, epage
;
2383 ushort pageno
, pageofs
, bufhead
;
2384 void __iomem
*baseAddr
, *ofsAddr
, *ofs
;
2386 ofsAddr
= moxaTableAddr
[port
];
2387 baseAddr
= moxaBaseAddr
[port
/ MAX_PORTS_PER_BOARD
];
2388 tx_mask
= readw(ofsAddr
+ TX_mask
);
2389 spage
= readw(ofsAddr
+ Page_txb
);
2390 epage
= readw(ofsAddr
+ EndPage_txb
);
2391 tail
= readw(ofsAddr
+ TXwptr
);
2392 head
= readw(ofsAddr
+ TXrptr
);
2393 c
= (head
> tail
) ? (head
- tail
- 1)
2394 : (head
- tail
+ tx_mask
);
2397 moxaLog
.txcnt
[port
] += c
;
2399 if (spage
== epage
) {
2400 bufhead
= readw(ofsAddr
+ Ofs_txb
);
2401 writew(spage
, baseAddr
+ Control_reg
);
2404 len
= head
- tail
- 1;
2406 len
= tx_mask
+ 1 - tail
;
2407 len
= (c
> len
) ? len
: c
;
2408 ofs
= baseAddr
+ DynPage_addr
+ bufhead
+ tail
;
2409 for (i
= 0; i
< len
; i
++)
2410 writeb(*buffer
++, ofs
+ i
);
2411 tail
= (tail
+ len
) & tx_mask
;
2414 writew(tail
, ofsAddr
+ TXwptr
);
2417 pageno
= spage
+ (tail
>> 13);
2418 pageofs
= tail
& Page_mask
;
2420 cnt
= Page_size
- pageofs
;
2424 writeb(pageno
, baseAddr
+ Control_reg
);
2425 ofs
= baseAddr
+ DynPage_addr
+ pageofs
;
2426 for (i
= 0; i
< cnt
; i
++)
2427 writeb(*buffer
++, ofs
+ i
);
2429 writew((tail
+ len
) & tx_mask
, ofsAddr
+ TXwptr
);
2432 if (++pageno
== epage
)
2437 writeb(1, ofsAddr
+ CD180TXirq
); /* start to send */
2441 int MoxaPortReadData(int port
, struct tty_struct
*tty
)
2443 register ushort head
, pageofs
;
2444 int i
, count
, cnt
, len
, total
, remain
;
2445 ushort tail
, rx_mask
, spage
, epage
;
2446 ushort pageno
, bufhead
;
2447 void __iomem
*baseAddr
, *ofsAddr
, *ofs
;
2449 ofsAddr
= moxaTableAddr
[port
];
2450 baseAddr
= moxaBaseAddr
[port
/ MAX_PORTS_PER_BOARD
];
2451 head
= readw(ofsAddr
+ RXrptr
);
2452 tail
= readw(ofsAddr
+ RXwptr
);
2453 rx_mask
= readw(ofsAddr
+ RX_mask
);
2454 spage
= readw(ofsAddr
+ Page_rxb
);
2455 epage
= readw(ofsAddr
+ EndPage_rxb
);
2456 count
= (tail
>= head
) ? (tail
- head
)
2457 : (tail
- head
+ rx_mask
+ 1);
2462 remain
= count
- total
;
2463 moxaLog
.rxcnt
[port
] += total
;
2465 if (spage
== epage
) {
2466 bufhead
= readw(ofsAddr
+ Ofs_rxb
);
2467 writew(spage
, baseAddr
+ Control_reg
);
2472 len
= rx_mask
+ 1 - head
;
2473 len
= (count
> len
) ? len
: count
;
2474 ofs
= baseAddr
+ DynPage_addr
+ bufhead
+ head
;
2475 for (i
= 0; i
< len
; i
++)
2476 tty_insert_flip_char(tty
, readb(ofs
+ i
), TTY_NORMAL
);
2477 head
= (head
+ len
) & rx_mask
;
2480 writew(head
, ofsAddr
+ RXrptr
);
2483 pageno
= spage
+ (head
>> 13);
2484 pageofs
= head
& Page_mask
;
2486 cnt
= Page_size
- pageofs
;
2490 writew(pageno
, baseAddr
+ Control_reg
);
2491 ofs
= baseAddr
+ DynPage_addr
+ pageofs
;
2492 for (i
= 0; i
< cnt
; i
++)
2493 tty_insert_flip_char(tty
, readb(ofs
+ i
), TTY_NORMAL
);
2495 writew((head
+ len
) & rx_mask
, ofsAddr
+ RXrptr
);
2498 if (++pageno
== epage
)
2503 if ((readb(ofsAddr
+ FlagStat
) & Xoff_state
) && (remain
< LowWater
)) {
2504 moxaLowWaterChk
= 1;
2505 moxaLowChkFlag
[port
] = 1;
2511 int MoxaPortTxQueue(int port
)
2513 void __iomem
*ofsAddr
;
2514 ushort rptr
, wptr
, mask
;
2517 ofsAddr
= moxaTableAddr
[port
];
2518 rptr
= readw(ofsAddr
+ TXrptr
);
2519 wptr
= readw(ofsAddr
+ TXwptr
);
2520 mask
= readw(ofsAddr
+ TX_mask
);
2521 len
= (wptr
- rptr
) & mask
;
2525 int MoxaPortTxFree(int port
)
2527 void __iomem
*ofsAddr
;
2528 ushort rptr
, wptr
, mask
;
2531 ofsAddr
= moxaTableAddr
[port
];
2532 rptr
= readw(ofsAddr
+ TXrptr
);
2533 wptr
= readw(ofsAddr
+ TXwptr
);
2534 mask
= readw(ofsAddr
+ TX_mask
);
2535 len
= mask
- ((wptr
- rptr
) & mask
);
2539 int MoxaPortRxQueue(int port
)
2541 void __iomem
*ofsAddr
;
2542 ushort rptr
, wptr
, mask
;
2545 ofsAddr
= moxaTableAddr
[port
];
2546 rptr
= readw(ofsAddr
+ RXrptr
);
2547 wptr
= readw(ofsAddr
+ RXwptr
);
2548 mask
= readw(ofsAddr
+ RX_mask
);
2549 len
= (wptr
- rptr
) & mask
;
2554 void MoxaPortTxDisable(int port
)
2556 void __iomem
*ofsAddr
;
2558 ofsAddr
= moxaTableAddr
[port
];
2559 moxafunc(ofsAddr
, FC_SetXoffState
, Magic_code
);
2562 void MoxaPortTxEnable(int port
)
2564 void __iomem
*ofsAddr
;
2566 ofsAddr
= moxaTableAddr
[port
];
2567 moxafunc(ofsAddr
, FC_SetXonState
, Magic_code
);
2571 int MoxaPortResetBrkCnt(int port
)
2574 cnt
= moxaBreakCnt
[port
];
2575 moxaBreakCnt
[port
] = 0;
2580 void MoxaPortSendBreak(int port
, int ms100
)
2582 void __iomem
*ofsAddr
;
2584 ofsAddr
= moxaTableAddr
[port
];
2586 moxafunc(ofsAddr
, FC_SendBreak
, Magic_code
);
2587 moxadelay(ms100
* (HZ
/ 10));
2589 moxafunc(ofsAddr
, FC_SendBreak
, Magic_code
);
2590 moxadelay(HZ
/ 4); /* 250 ms */
2592 moxafunc(ofsAddr
, FC_StopBreak
, Magic_code
);
2595 static int moxa_get_serial_info(struct moxa_str
*info
,
2596 struct serial_struct __user
*retinfo
)
2598 struct serial_struct tmp
;
2600 memset(&tmp
, 0, sizeof(tmp
));
2601 tmp
.type
= info
->type
;
2602 tmp
.line
= info
->port
;
2605 tmp
.flags
= info
->asyncflags
;
2606 tmp
.baud_base
= 921600;
2607 tmp
.close_delay
= info
->close_delay
;
2608 tmp
.closing_wait
= info
->closing_wait
;
2609 tmp
.custom_divisor
= 0;
2611 if(copy_to_user(retinfo
, &tmp
, sizeof(*retinfo
)))
2617 static int moxa_set_serial_info(struct moxa_str
*info
,
2618 struct serial_struct __user
*new_info
)
2620 struct serial_struct new_serial
;
2622 if(copy_from_user(&new_serial
, new_info
, sizeof(new_serial
)))
2625 if ((new_serial
.irq
!= 0) ||
2626 (new_serial
.port
!= 0) ||
2627 // (new_serial.type != info->type) ||
2628 (new_serial
.custom_divisor
!= 0) ||
2629 (new_serial
.baud_base
!= 921600))
2632 if (!capable(CAP_SYS_ADMIN
)) {
2633 if (((new_serial
.flags
& ~ASYNC_USR_MASK
) !=
2634 (info
->asyncflags
& ~ASYNC_USR_MASK
)))
2637 info
->close_delay
= new_serial
.close_delay
* HZ
/ 100;
2638 info
->closing_wait
= new_serial
.closing_wait
* HZ
/ 100;
2641 new_serial
.flags
= (new_serial
.flags
& ~ASYNC_FLAGS
);
2642 new_serial
.flags
|= (info
->asyncflags
& ASYNC_FLAGS
);
2644 if (new_serial
.type
== PORT_16550A
) {
2645 MoxaSetFifo(info
->port
, 1);
2647 MoxaSetFifo(info
->port
, 0);
2650 info
->type
= new_serial
.type
;
2656 /*****************************************************************************
2657 * Static local functions: *
2658 *****************************************************************************/
2660 * moxadelay - delays a specified number ticks
2662 static void moxadelay(int tick
)
2664 unsigned long st
, et
;
2668 while (time_before(jiffies
, et
));
2671 static void moxafunc(void __iomem
*ofsAddr
, int cmd
, ushort arg
)
2674 writew(arg
, ofsAddr
+ FuncArg
);
2675 writew(cmd
, ofsAddr
+ FuncCode
);
2676 wait_finish(ofsAddr
);
2679 static void wait_finish(void __iomem
*ofsAddr
)
2684 while (readw(ofsAddr
+ FuncCode
) != 0) {
2686 if ((j
- i
) > moxaFuncTout
) {
2692 static void low_water_check(void __iomem
*ofsAddr
)
2695 ushort rptr
, wptr
, mask
;
2697 if (readb(ofsAddr
+ FlagStat
) & Xoff_state
) {
2698 rptr
= readw(ofsAddr
+ RXrptr
);
2699 wptr
= readw(ofsAddr
+ RXwptr
);
2700 mask
= readw(ofsAddr
+ RX_mask
);
2701 len
= (wptr
- rptr
) & mask
;
2702 if (len
<= Low_water
)
2703 moxafunc(ofsAddr
, FC_SendXon
, 0);
2707 static int moxaloadbios(int cardno
, unsigned char __user
*tmp
, int len
)
2709 void __iomem
*baseAddr
;
2712 if(copy_from_user(moxaBuff
, tmp
, len
))
2714 baseAddr
= moxaBaseAddr
[cardno
];
2715 writeb(HW_reset
, baseAddr
+ Control_reg
); /* reset */
2716 moxadelay(1); /* delay 10 ms */
2717 for (i
= 0; i
< 4096; i
++)
2718 writeb(0, baseAddr
+ i
); /* clear fix page */
2719 for (i
= 0; i
< len
; i
++)
2720 writeb(moxaBuff
[i
], baseAddr
+ i
); /* download BIOS */
2721 writeb(0, baseAddr
+ Control_reg
); /* restart */
2725 static int moxafindcard(int cardno
)
2727 void __iomem
*baseAddr
;
2730 baseAddr
= moxaBaseAddr
[cardno
];
2731 switch (moxa_boards
[cardno
].boardType
) {
2732 case MOXA_BOARD_C218_ISA
:
2733 case MOXA_BOARD_C218_PCI
:
2734 if ((tmp
= readw(baseAddr
+ C218_key
)) != C218_KeyCode
) {
2738 case MOXA_BOARD_CP204J
:
2739 if ((tmp
= readw(baseAddr
+ C218_key
)) != CP204J_KeyCode
) {
2744 if ((tmp
= readw(baseAddr
+ C320_key
)) != C320_KeyCode
) {
2747 if ((tmp
= readw(baseAddr
+ C320_status
)) != STS_init
) {
2754 static int moxaload320b(int cardno
, unsigned char __user
*tmp
, int len
)
2756 void __iomem
*baseAddr
;
2759 if(len
> sizeof(moxaBuff
))
2761 if(copy_from_user(moxaBuff
, tmp
, len
))
2763 baseAddr
= moxaBaseAddr
[cardno
];
2764 writew(len
- 7168 - 2, baseAddr
+ C320bapi_len
);
2765 writeb(1, baseAddr
+ Control_reg
); /* Select Page 1 */
2766 for (i
= 0; i
< 7168; i
++)
2767 writeb(moxaBuff
[i
], baseAddr
+ DynPage_addr
+ i
);
2768 writeb(2, baseAddr
+ Control_reg
); /* Select Page 2 */
2769 for (i
= 0; i
< (len
- 7168); i
++)
2770 writeb(moxaBuff
[i
+ 7168], baseAddr
+ DynPage_addr
+ i
);
2774 static int moxaloadcode(int cardno
, unsigned char __user
*tmp
, int len
)
2776 void __iomem
*baseAddr
, *ofsAddr
;
2777 int retval
, port
, i
;
2779 if(copy_from_user(moxaBuff
, tmp
, len
))
2781 baseAddr
= moxaBaseAddr
[cardno
];
2782 switch (moxa_boards
[cardno
].boardType
) {
2783 case MOXA_BOARD_C218_ISA
:
2784 case MOXA_BOARD_C218_PCI
:
2785 case MOXA_BOARD_CP204J
:
2786 retval
= moxaloadc218(cardno
, baseAddr
, len
);
2789 port
= cardno
* MAX_PORTS_PER_BOARD
;
2790 for (i
= 0; i
< moxa_boards
[cardno
].numPorts
; i
++, port
++) {
2791 moxaChkPort
[port
] = 1;
2792 moxaCurBaud
[port
] = 9600L;
2793 moxaDCDState
[port
] = 0;
2794 moxaTableAddr
[port
] = baseAddr
+ Extern_table
+ Extern_size
* i
;
2795 ofsAddr
= moxaTableAddr
[port
];
2796 writew(C218rx_mask
, ofsAddr
+ RX_mask
);
2797 writew(C218tx_mask
, ofsAddr
+ TX_mask
);
2798 writew(C218rx_spage
+ i
* C218buf_pageno
, ofsAddr
+ Page_rxb
);
2799 writew(readw(ofsAddr
+ Page_rxb
) + C218rx_pageno
, ofsAddr
+ EndPage_rxb
);
2801 writew(C218tx_spage
+ i
* C218buf_pageno
, ofsAddr
+ Page_txb
);
2802 writew(readw(ofsAddr
+ Page_txb
) + C218tx_pageno
, ofsAddr
+ EndPage_txb
);
2807 retval
= moxaloadc320(cardno
, baseAddr
, len
,
2808 &moxa_boards
[cardno
].numPorts
);
2811 port
= cardno
* MAX_PORTS_PER_BOARD
;
2812 for (i
= 0; i
< moxa_boards
[cardno
].numPorts
; i
++, port
++) {
2813 moxaChkPort
[port
] = 1;
2814 moxaCurBaud
[port
] = 9600L;
2815 moxaDCDState
[port
] = 0;
2816 moxaTableAddr
[port
] = baseAddr
+ Extern_table
+ Extern_size
* i
;
2817 ofsAddr
= moxaTableAddr
[port
];
2818 if (moxa_boards
[cardno
].numPorts
== 8) {
2819 writew(C320p8rx_mask
, ofsAddr
+ RX_mask
);
2820 writew(C320p8tx_mask
, ofsAddr
+ TX_mask
);
2821 writew(C320p8rx_spage
+ i
* C320p8buf_pgno
, ofsAddr
+ Page_rxb
);
2822 writew(readw(ofsAddr
+ Page_rxb
) + C320p8rx_pgno
, ofsAddr
+ EndPage_rxb
);
2823 writew(C320p8tx_spage
+ i
* C320p8buf_pgno
, ofsAddr
+ Page_txb
);
2824 writew(readw(ofsAddr
+ Page_txb
) + C320p8tx_pgno
, ofsAddr
+ EndPage_txb
);
2826 } else if (moxa_boards
[cardno
].numPorts
== 16) {
2827 writew(C320p16rx_mask
, ofsAddr
+ RX_mask
);
2828 writew(C320p16tx_mask
, ofsAddr
+ TX_mask
);
2829 writew(C320p16rx_spage
+ i
* C320p16buf_pgno
, ofsAddr
+ Page_rxb
);
2830 writew(readw(ofsAddr
+ Page_rxb
) + C320p16rx_pgno
, ofsAddr
+ EndPage_rxb
);
2831 writew(C320p16tx_spage
+ i
* C320p16buf_pgno
, ofsAddr
+ Page_txb
);
2832 writew(readw(ofsAddr
+ Page_txb
) + C320p16tx_pgno
, ofsAddr
+ EndPage_txb
);
2834 } else if (moxa_boards
[cardno
].numPorts
== 24) {
2835 writew(C320p24rx_mask
, ofsAddr
+ RX_mask
);
2836 writew(C320p24tx_mask
, ofsAddr
+ TX_mask
);
2837 writew(C320p24rx_spage
+ i
* C320p24buf_pgno
, ofsAddr
+ Page_rxb
);
2838 writew(readw(ofsAddr
+ Page_rxb
) + C320p24rx_pgno
, ofsAddr
+ EndPage_rxb
);
2839 writew(C320p24tx_spage
+ i
* C320p24buf_pgno
, ofsAddr
+ Page_txb
);
2840 writew(readw(ofsAddr
+ Page_txb
), ofsAddr
+ EndPage_txb
);
2841 } else if (moxa_boards
[cardno
].numPorts
== 32) {
2842 writew(C320p32rx_mask
, ofsAddr
+ RX_mask
);
2843 writew(C320p32tx_mask
, ofsAddr
+ TX_mask
);
2844 writew(C320p32tx_ofs
, ofsAddr
+ Ofs_txb
);
2845 writew(C320p32rx_spage
+ i
* C320p32buf_pgno
, ofsAddr
+ Page_rxb
);
2846 writew(readb(ofsAddr
+ Page_rxb
), ofsAddr
+ EndPage_rxb
);
2847 writew(C320p32tx_spage
+ i
* C320p32buf_pgno
, ofsAddr
+ Page_txb
);
2848 writew(readw(ofsAddr
+ Page_txb
), ofsAddr
+ EndPage_txb
);
2853 loadstat
[cardno
] = 1;
2857 static int moxaloadc218(int cardno
, void __iomem
*baseAddr
, int len
)
2860 int i
, j
, len1
, len2
;
2861 ushort usum
, *ptr
, keycode
;
2863 if (moxa_boards
[cardno
].boardType
== MOXA_BOARD_CP204J
)
2864 keycode
= CP204J_KeyCode
;
2866 keycode
= C218_KeyCode
;
2869 ptr
= (ushort
*) moxaBuff
;
2870 for (i
= 0; i
< len1
; i
++)
2871 usum
+= le16_to_cpu(*(ptr
+ i
));
2877 len2
= (len1
> 2048) ? 2048 : len1
;
2879 for (i
= 0; i
< len2
<< 1; i
++)
2880 writeb(moxaBuff
[i
+ j
], baseAddr
+ C218_LoadBuf
+ i
);
2883 writew(len2
, baseAddr
+ C218DLoad_len
);
2884 writew(0, baseAddr
+ C218_key
);
2885 for (i
= 0; i
< 100; i
++) {
2886 if (readw(baseAddr
+ C218_key
) == keycode
)
2888 moxadelay(1); /* delay 10 ms */
2890 if (readw(baseAddr
+ C218_key
) != keycode
) {
2894 writew(0, baseAddr
+ C218DLoad_len
);
2895 writew(usum
, baseAddr
+ C218check_sum
);
2896 writew(0, baseAddr
+ C218_key
);
2897 for (i
= 0; i
< 100; i
++) {
2898 if (readw(baseAddr
+ C218_key
) == keycode
)
2900 moxadelay(1); /* delay 10 ms */
2903 } while ((readb(baseAddr
+ C218chksum_ok
) != 1) && (retry
< 3));
2904 if (readb(baseAddr
+ C218chksum_ok
) != 1) {
2907 writew(0, baseAddr
+ C218_key
);
2908 for (i
= 0; i
< 100; i
++) {
2909 if (readw(baseAddr
+ Magic_no
) == Magic_code
)
2911 moxadelay(1); /* delay 10 ms */
2913 if (readw(baseAddr
+ Magic_no
) != Magic_code
) {
2916 writew(1, baseAddr
+ Disable_IRQ
);
2917 writew(0, baseAddr
+ Magic_no
);
2918 for (i
= 0; i
< 100; i
++) {
2919 if (readw(baseAddr
+ Magic_no
) == Magic_code
)
2921 moxadelay(1); /* delay 10 ms */
2923 if (readw(baseAddr
+ Magic_no
) != Magic_code
) {
2927 moxaIntNdx
[cardno
] = baseAddr
+ IRQindex
;
2928 moxaIntPend
[cardno
] = baseAddr
+ IRQpending
;
2929 moxaIntTable
[cardno
] = baseAddr
+ IRQtable
;
2933 static int moxaloadc320(int cardno
, void __iomem
*baseAddr
, int len
, int *numPorts
)
2936 int i
, j
, wlen
, len2
, retry
;
2941 uptr
= (ushort
*) moxaBuff
;
2942 for (i
= 0; i
< wlen
; i
++)
2943 usum
+= le16_to_cpu(uptr
[i
]);
2954 for (i
= 0; i
< len2
; i
++)
2955 writeb(moxaBuff
[j
+ i
], baseAddr
+ C320_LoadBuf
+ i
);
2958 writew(len2
, baseAddr
+ C320DLoad_len
);
2959 writew(0, baseAddr
+ C320_key
);
2960 for (i
= 0; i
< 10; i
++) {
2961 if (readw(baseAddr
+ C320_key
) == C320_KeyCode
)
2965 if (readw(baseAddr
+ C320_key
) != C320_KeyCode
)
2968 writew(0, baseAddr
+ C320DLoad_len
);
2969 writew(usum
, baseAddr
+ C320check_sum
);
2970 writew(0, baseAddr
+ C320_key
);
2971 for (i
= 0; i
< 10; i
++) {
2972 if (readw(baseAddr
+ C320_key
) == C320_KeyCode
)
2977 } while ((readb(baseAddr
+ C320chksum_ok
) != 1) && (retry
< 3));
2978 if (readb(baseAddr
+ C320chksum_ok
) != 1)
2980 writew(0, baseAddr
+ C320_key
);
2981 for (i
= 0; i
< 600; i
++) {
2982 if (readw(baseAddr
+ Magic_no
) == Magic_code
)
2986 if (readw(baseAddr
+ Magic_no
) != Magic_code
)
2989 if (moxa_boards
[cardno
].busType
== MOXA_BUS_TYPE_PCI
) { /* ASIC board */
2990 writew(0x3800, baseAddr
+ TMS320_PORT1
);
2991 writew(0x3900, baseAddr
+ TMS320_PORT2
);
2992 writew(28499, baseAddr
+ TMS320_CLOCK
);
2994 writew(0x3200, baseAddr
+ TMS320_PORT1
);
2995 writew(0x3400, baseAddr
+ TMS320_PORT2
);
2996 writew(19999, baseAddr
+ TMS320_CLOCK
);
2998 writew(1, baseAddr
+ Disable_IRQ
);
2999 writew(0, baseAddr
+ Magic_no
);
3000 for (i
= 0; i
< 500; i
++) {
3001 if (readw(baseAddr
+ Magic_no
) == Magic_code
)
3005 if (readw(baseAddr
+ Magic_no
) != Magic_code
)
3008 j
= readw(baseAddr
+ Module_cnt
);
3012 writew(j
, baseAddr
+ Module_no
);
3013 writew(0, baseAddr
+ Magic_no
);
3014 for (i
= 0; i
< 600; i
++) {
3015 if (readw(baseAddr
+ Magic_no
) == Magic_code
)
3019 if (readw(baseAddr
+ Magic_no
) != Magic_code
)
3022 moxaIntNdx
[cardno
] = baseAddr
+ IRQindex
;
3023 moxaIntPend
[cardno
] = baseAddr
+ IRQpending
;
3024 moxaIntTable
[cardno
] = baseAddr
+ IRQtable
;
3029 long MoxaPortGetCurBaud(int port
)
3032 if (moxaChkPort
[port
] == 0)
3034 return (moxaCurBaud
[port
]);
3038 static void MoxaSetFifo(int port
, int enable
)
3040 void __iomem
*ofsAddr
= moxaTableAddr
[port
];
3043 moxafunc(ofsAddr
, FC_SetRxFIFOTrig
, 0);
3044 moxafunc(ofsAddr
, FC_SetTxFIFOCnt
, 1);
3046 moxafunc(ofsAddr
, FC_SetRxFIFOTrig
, 3);
3047 moxafunc(ofsAddr
, FC_SetTxFIFOCnt
, 16);
3052 int MoxaPortSetMode(int port
, int databits
, int stopbits
, int parity
)
3054 void __iomem
*ofsAddr
;
3077 break; /* stop bits 1.5 */
3106 ofsAddr
= moxaTableAddr
[port
];
3107 moxafunc(ofsAddr
, FC_SetMode
, val
);
3111 int MoxaPortTxBufSize(int port
)
3113 void __iomem
*ofsAddr
;
3116 ofsAddr
= moxaTableAddr
[port
];
3117 size
= readw(ofsAddr
+ TX_mask
);
3121 int MoxaPortRxBufSize(int port
)
3123 void __iomem
*ofsAddr
;
3126 ofsAddr
= moxaTableAddr
[port
];
3127 size
= readw(ofsAddr
+ RX_mask
);
3131 int MoxaPortRxFree(int port
)
3133 void __iomem
*ofsAddr
;
3134 ushort rptr
, wptr
, mask
;
3137 ofsAddr
= moxaTableAddr
[port
];
3138 rptr
= readw(ofsAddr
+ RXrptr
);
3139 wptr
= readw(ofsAddr
+ RXwptr
);
3140 mask
= readw(ofsAddr
+ RX_mask
);
3141 len
= mask
- ((wptr
- rptr
) & mask
);
3144 int MoxaPortGetBrkCnt(int port
)
3146 return (moxaBreakCnt
[port
]);
3149 void MoxaPortSetXonXoff(int port
, int xonValue
, int xoffValue
)
3151 void __iomem
*ofsAddr
;
3153 ofsAddr
= moxaTableAddr
[port
];
3154 writew(xonValue
, ofsAddr
+ FuncArg
);
3155 writew(xoffValue
, ofsAddr
+ FuncArg1
);
3156 writew(FC_SetXonXoff
, ofsAddr
+ FuncCode
);
3157 wait_finish(ofsAddr
);
3160 int MoxaPortIsTxHold(int port
)
3162 void __iomem
*ofsAddr
;
3165 ofsAddr
= moxaTableAddr
[port
];
3166 if ((moxa_boards
[port
/ MAX_PORTS_PER_BOARD
].boardType
== MOXA_BOARD_C320_ISA
) ||
3167 (moxa_boards
[port
/ MAX_PORTS_PER_BOARD
].boardType
== MOXA_BOARD_C320_PCI
)) {
3168 moxafunc(ofsAddr
, FC_GetCCSR
, 0);
3169 val
= readw(ofsAddr
+ FuncArg
);
3173 if (readw(ofsAddr
+ FlagStat
) & Tx_flowOff
)