1 /*****************************************************************************/
4 * istallion.c -- stallion intelligent multiport serial driver.
6 * Copyright (C) 1996-1999 Stallion Technologies
7 * Copyright (C) 1994-1996 Greg Ungerer.
9 * This code is loosely based on the Linux serial driver, written by
10 * Linus Torvalds, Theodore T'so and others.
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
19 /*****************************************************************************/
21 #include <linux/module.h>
22 #include <linux/slab.h>
23 #include <linux/interrupt.h>
24 #include <linux/tty.h>
25 #include <linux/tty_flip.h>
26 #include <linux/serial.h>
27 #include <linux/cdk.h>
28 #include <linux/comstats.h>
29 #include <linux/istallion.h>
30 #include <linux/ioport.h>
31 #include <linux/delay.h>
32 #include <linux/init.h>
33 #include <linux/device.h>
34 #include <linux/wait.h>
35 #include <linux/eisa.h>
36 #include <linux/ctype.h>
39 #include <asm/uaccess.h>
41 #include <linux/pci.h>
43 /*****************************************************************************/
46 * Define different board types. Not all of the following board types
47 * are supported by this driver. But I will use the standard "assigned"
48 * board numbers. Currently supported boards are abbreviated as:
49 * ECP = EasyConnection 8/64, ONB = ONboard, BBY = Brumby and
53 #define BRD_STALLION 1
55 #define BRD_ONBOARD2 3
57 #define BRD_ONBOARDE 7
63 #define BRD_BRUMBY BRD_BRUMBY4
66 * Define a configuration structure to hold the board configuration.
67 * Need to set this up in the code (for now) with the boards that are
68 * to be configured into the system. This is what needs to be modified
69 * when adding/removing/modifying boards. Each line entry in the
70 * stli_brdconf[] array is a board. Each line contains io/irq/memory
71 * ranges for that board (as well as what type of board it is).
73 * { BRD_ECP, 0x2a0, 0, 0xcc000, 0, 0 },
74 * This line will configure an EasyConnection 8/64 at io address 2a0,
75 * and shared memory address of cc000. Multiple EasyConnection 8/64
76 * boards can share the same shared memory address space. No interrupt
77 * is required for this board type.
79 * { BRD_ECPE, 0x5000, 0, 0x80000000, 0, 0 },
80 * This line will configure an EasyConnection 8/64 EISA in slot 5 and
81 * shared memory address of 0x80000000 (2 GByte). Multiple
82 * EasyConnection 8/64 EISA boards can share the same shared memory
83 * address space. No interrupt is required for this board type.
85 * { BRD_ONBOARD, 0x240, 0, 0xd0000, 0, 0 },
86 * This line will configure an ONboard (ISA type) at io address 240,
87 * and shared memory address of d0000. Multiple ONboards can share
88 * the same shared memory address space. No interrupt required.
90 * { BRD_BRUMBY4, 0x360, 0, 0xc8000, 0, 0 },
91 * This line will configure a Brumby board (any number of ports!) at
92 * io address 360 and shared memory address of c8000. All Brumby boards
93 * configured into a system must have their own separate io and memory
94 * addresses. No interrupt is required.
96 * { BRD_STALLION, 0x330, 0, 0xd0000, 0, 0 },
97 * This line will configure an original Stallion board at io address 330
98 * and shared memory address d0000 (this would only be valid for a "V4.0"
99 * or Rev.O Stallion board). All Stallion boards configured into the
100 * system must have their own separate io and memory addresses. No
101 * interrupt is required.
108 unsigned long memaddr
;
113 static unsigned int stli_nrbrds
;
115 /* stli_lock must NOT be taken holding brd_lock */
116 static spinlock_t stli_lock
; /* TTY logic lock */
117 static spinlock_t brd_lock
; /* Board logic lock */
120 * There is some experimental EISA board detection code in this driver.
121 * By default it is disabled, but for those that want to try it out,
122 * then set the define below to be 1.
124 #define STLI_EISAPROBE 0
126 /*****************************************************************************/
129 * Define some important driver characteristics. Device major numbers
130 * allocated as per Linux Device Registry.
132 #ifndef STL_SIOMEMMAJOR
133 #define STL_SIOMEMMAJOR 28
135 #ifndef STL_SERIALMAJOR
136 #define STL_SERIALMAJOR 24
138 #ifndef STL_CALLOUTMAJOR
139 #define STL_CALLOUTMAJOR 25
142 /*****************************************************************************/
145 * Define our local driver identity first. Set up stuff to deal with
146 * all the local structures required by a serial tty driver.
148 static char *stli_drvtitle
= "Stallion Intelligent Multiport Serial Driver";
149 static char *stli_drvname
= "istallion";
150 static char *stli_drvversion
= "5.6.0";
151 static char *stli_serialname
= "ttyE";
153 static struct tty_driver
*stli_serial
;
156 #define STLI_TXBUFSIZE 4096
159 * Use a fast local buffer for cooked characters. Typically a whole
160 * bunch of cooked characters come in for a port, 1 at a time. So we
161 * save those up into a local buffer, then write out the whole lot
162 * with a large memcpy. Just use 1 buffer for all ports, since its
163 * use it is only need for short periods of time by each port.
165 static char *stli_txcookbuf
;
166 static int stli_txcooksize
;
167 static int stli_txcookrealsize
;
168 static struct tty_struct
*stli_txcooktty
;
171 * Define a local default termios struct. All ports will be created
172 * with this termios initially. Basically all it defines is a raw port
173 * at 9600 baud, 8 data bits, no parity, 1 stop bit.
175 static struct ktermios stli_deftermios
= {
176 .c_cflag
= (B9600
| CS8
| CREAD
| HUPCL
| CLOCAL
),
183 * Define global stats structures. Not used often, and can be
184 * re-used for each stats call.
186 static comstats_t stli_comstats
;
187 static combrd_t stli_brdstats
;
188 static struct asystats stli_cdkstats
;
190 /*****************************************************************************/
192 static DEFINE_MUTEX(stli_brdslock
);
193 static struct stlibrd
*stli_brds
[STL_MAXBRDS
];
195 static int stli_shared
;
198 * Per board state flags. Used with the state field of the board struct.
199 * Not really much here... All we need to do is keep track of whether
200 * the board has been detected, and whether it is actually running a slave
203 #define BST_FOUND 0x1
204 #define BST_STARTED 0x2
205 #define BST_PROBED 0x4
208 * Define the set of port state flags. These are marked for internal
209 * state purposes only, usually to do with the state of communications
210 * with the slave. Most of them need to be updated atomically, so always
211 * use the bit setting operations (unless protected by cli/sti).
213 #define ST_INITIALIZING 1
219 #define ST_DOFLUSHRX 7
220 #define ST_DOFLUSHTX 8
223 #define ST_GETSIGS 11
226 * Define an array of board names as printable strings. Handy for
227 * referencing boards when printing trace and stuff.
229 static char *stli_brdnames
[] = {
262 /*****************************************************************************/
265 * Define some string labels for arguments passed from the module
266 * load line. These allow for easy board definitions, and easy
267 * modification of the io, memory and irq resoucres.
270 static char *board0
[8];
271 static char *board1
[8];
272 static char *board2
[8];
273 static char *board3
[8];
275 static char **stli_brdsp
[] = {
283 * Define a set of common board names, and types. This is used to
284 * parse any module arguments.
287 static struct stlibrdtype
{
291 { "stallion", BRD_STALLION
},
292 { "1", BRD_STALLION
},
293 { "brumby", BRD_BRUMBY
},
294 { "brumby4", BRD_BRUMBY
},
295 { "brumby/4", BRD_BRUMBY
},
296 { "brumby-4", BRD_BRUMBY
},
297 { "brumby8", BRD_BRUMBY
},
298 { "brumby/8", BRD_BRUMBY
},
299 { "brumby-8", BRD_BRUMBY
},
300 { "brumby16", BRD_BRUMBY
},
301 { "brumby/16", BRD_BRUMBY
},
302 { "brumby-16", BRD_BRUMBY
},
304 { "onboard2", BRD_ONBOARD2
},
305 { "onboard-2", BRD_ONBOARD2
},
306 { "onboard/2", BRD_ONBOARD2
},
307 { "onboard-mc", BRD_ONBOARD2
},
308 { "onboard/mc", BRD_ONBOARD2
},
309 { "onboard-mca", BRD_ONBOARD2
},
310 { "onboard/mca", BRD_ONBOARD2
},
311 { "3", BRD_ONBOARD2
},
312 { "onboard", BRD_ONBOARD
},
313 { "onboardat", BRD_ONBOARD
},
314 { "4", BRD_ONBOARD
},
315 { "onboarde", BRD_ONBOARDE
},
316 { "onboard-e", BRD_ONBOARDE
},
317 { "onboard/e", BRD_ONBOARDE
},
318 { "onboard-ei", BRD_ONBOARDE
},
319 { "onboard/ei", BRD_ONBOARDE
},
320 { "7", BRD_ONBOARDE
},
322 { "ecpat", BRD_ECP
},
323 { "ec8/64", BRD_ECP
},
324 { "ec8/64-at", BRD_ECP
},
325 { "ec8/64-isa", BRD_ECP
},
327 { "ecpe", BRD_ECPE
},
328 { "ecpei", BRD_ECPE
},
329 { "ec8/64-e", BRD_ECPE
},
330 { "ec8/64-ei", BRD_ECPE
},
332 { "ecpmc", BRD_ECPMC
},
333 { "ec8/64-mc", BRD_ECPMC
},
334 { "ec8/64-mca", BRD_ECPMC
},
336 { "ecppci", BRD_ECPPCI
},
337 { "ec/ra", BRD_ECPPCI
},
338 { "ec/ra-pc", BRD_ECPPCI
},
339 { "ec/ra-pci", BRD_ECPPCI
},
340 { "29", BRD_ECPPCI
},
344 * Define the module agruments.
346 MODULE_AUTHOR("Greg Ungerer");
347 MODULE_DESCRIPTION("Stallion Intelligent Multiport Serial Driver");
348 MODULE_LICENSE("GPL");
351 module_param_array(board0
, charp
, NULL
, 0);
352 MODULE_PARM_DESC(board0
, "Board 0 config -> name[,ioaddr[,memaddr]");
353 module_param_array(board1
, charp
, NULL
, 0);
354 MODULE_PARM_DESC(board1
, "Board 1 config -> name[,ioaddr[,memaddr]");
355 module_param_array(board2
, charp
, NULL
, 0);
356 MODULE_PARM_DESC(board2
, "Board 2 config -> name[,ioaddr[,memaddr]");
357 module_param_array(board3
, charp
, NULL
, 0);
358 MODULE_PARM_DESC(board3
, "Board 3 config -> name[,ioaddr[,memaddr]");
360 #if STLI_EISAPROBE != 0
362 * Set up a default memory address table for EISA board probing.
363 * The default addresses are all bellow 1Mbyte, which has to be the
364 * case anyway. They should be safe, since we only read values from
365 * them, and interrupts are disabled while we do it. If the higher
366 * memory support is compiled in then we also try probing around
367 * the 1Gb, 2Gb and 3Gb areas as well...
369 static unsigned long stli_eisamemprobeaddrs
[] = {
370 0xc0000, 0xd0000, 0xe0000, 0xf0000,
371 0x80000000, 0x80010000, 0x80020000, 0x80030000,
372 0x40000000, 0x40010000, 0x40020000, 0x40030000,
373 0xc0000000, 0xc0010000, 0xc0020000, 0xc0030000,
374 0xff000000, 0xff010000, 0xff020000, 0xff030000,
377 static int stli_eisamempsize
= ARRAY_SIZE(stli_eisamemprobeaddrs
);
381 * Define the Stallion PCI vendor and device IDs.
383 #ifndef PCI_DEVICE_ID_ECRA
384 #define PCI_DEVICE_ID_ECRA 0x0004
387 static struct pci_device_id istallion_pci_tbl
[] = {
388 { PCI_DEVICE(PCI_VENDOR_ID_STALLION
, PCI_DEVICE_ID_ECRA
), },
391 MODULE_DEVICE_TABLE(pci
, istallion_pci_tbl
);
393 static struct pci_driver stli_pcidriver
;
395 /*****************************************************************************/
398 * Hardware configuration info for ECP boards. These defines apply
399 * to the directly accessible io ports of the ECP. There is a set of
400 * defines for each ECP board type, ISA, EISA, MCA and PCI.
404 #define ECP_MEMSIZE (128 * 1024)
405 #define ECP_PCIMEMSIZE (256 * 1024)
407 #define ECP_ATPAGESIZE (4 * 1024)
408 #define ECP_MCPAGESIZE (4 * 1024)
409 #define ECP_EIPAGESIZE (64 * 1024)
410 #define ECP_PCIPAGESIZE (64 * 1024)
412 #define STL_EISAID 0x8c4e
415 * Important defines for the ISA class of ECP board.
418 #define ECP_ATCONFR 1
419 #define ECP_ATMEMAR 2
420 #define ECP_ATMEMPR 3
421 #define ECP_ATSTOP 0x1
422 #define ECP_ATINTENAB 0x10
423 #define ECP_ATENABLE 0x20
424 #define ECP_ATDISABLE 0x00
425 #define ECP_ATADDRMASK 0x3f000
426 #define ECP_ATADDRSHFT 12
429 * Important defines for the EISA class of ECP board.
432 #define ECP_EIMEMARL 1
433 #define ECP_EICONFR 2
434 #define ECP_EIMEMARH 3
435 #define ECP_EIENABLE 0x1
436 #define ECP_EIDISABLE 0x0
437 #define ECP_EISTOP 0x4
438 #define ECP_EIEDGE 0x00
439 #define ECP_EILEVEL 0x80
440 #define ECP_EIADDRMASKL 0x00ff0000
441 #define ECP_EIADDRSHFTL 16
442 #define ECP_EIADDRMASKH 0xff000000
443 #define ECP_EIADDRSHFTH 24
444 #define ECP_EIBRDENAB 0xc84
446 #define ECP_EISAID 0x4
449 * Important defines for the Micro-channel class of ECP board.
450 * (It has a lot in common with the ISA boards.)
453 #define ECP_MCCONFR 1
454 #define ECP_MCSTOP 0x20
455 #define ECP_MCENABLE 0x80
456 #define ECP_MCDISABLE 0x00
459 * Important defines for the PCI class of ECP board.
460 * (It has a lot in common with the other ECP boards.)
462 #define ECP_PCIIREG 0
463 #define ECP_PCICONFR 1
464 #define ECP_PCISTOP 0x01
467 * Hardware configuration info for ONboard and Brumby boards. These
468 * defines apply to the directly accessible io ports of these boards.
470 #define ONB_IOSIZE 16
471 #define ONB_MEMSIZE (64 * 1024)
472 #define ONB_ATPAGESIZE (64 * 1024)
473 #define ONB_MCPAGESIZE (64 * 1024)
474 #define ONB_EIMEMSIZE (128 * 1024)
475 #define ONB_EIPAGESIZE (64 * 1024)
478 * Important defines for the ISA class of ONboard board.
481 #define ONB_ATMEMAR 1
482 #define ONB_ATCONFR 2
483 #define ONB_ATSTOP 0x4
484 #define ONB_ATENABLE 0x01
485 #define ONB_ATDISABLE 0x00
486 #define ONB_ATADDRMASK 0xff0000
487 #define ONB_ATADDRSHFT 16
489 #define ONB_MEMENABLO 0
490 #define ONB_MEMENABHI 0x02
493 * Important defines for the EISA class of ONboard board.
496 #define ONB_EIMEMARL 1
497 #define ONB_EICONFR 2
498 #define ONB_EIMEMARH 3
499 #define ONB_EIENABLE 0x1
500 #define ONB_EIDISABLE 0x0
501 #define ONB_EISTOP 0x4
502 #define ONB_EIEDGE 0x00
503 #define ONB_EILEVEL 0x80
504 #define ONB_EIADDRMASKL 0x00ff0000
505 #define ONB_EIADDRSHFTL 16
506 #define ONB_EIADDRMASKH 0xff000000
507 #define ONB_EIADDRSHFTH 24
508 #define ONB_EIBRDENAB 0xc84
510 #define ONB_EISAID 0x1
513 * Important defines for the Brumby boards. They are pretty simple,
514 * there is not much that is programmably configurable.
516 #define BBY_IOSIZE 16
517 #define BBY_MEMSIZE (64 * 1024)
518 #define BBY_PAGESIZE (16 * 1024)
521 #define BBY_ATCONFR 1
522 #define BBY_ATSTOP 0x4
525 * Important defines for the Stallion boards. They are pretty simple,
526 * there is not much that is programmably configurable.
528 #define STAL_IOSIZE 16
529 #define STAL_MEMSIZE (64 * 1024)
530 #define STAL_PAGESIZE (64 * 1024)
533 * Define the set of status register values for EasyConnection panels.
534 * The signature will return with the status value for each panel. From
535 * this we can determine what is attached to the board - before we have
536 * actually down loaded any code to it.
538 #define ECH_PNLSTATUS 2
539 #define ECH_PNL16PORT 0x20
540 #define ECH_PNLIDMASK 0x07
541 #define ECH_PNLXPID 0x40
542 #define ECH_PNLINTRPEND 0x80
545 * Define some macros to do things to the board. Even those these boards
546 * are somewhat related there is often significantly different ways of
547 * doing some operation on it (like enable, paging, reset, etc). So each
548 * board class has a set of functions which do the commonly required
549 * operations. The macros below basically just call these functions,
550 * generally checking for a NULL function - which means that the board
551 * needs nothing done to it to achieve this operation!
553 #define EBRDINIT(brdp) \
554 if (brdp->init != NULL) \
557 #define EBRDENABLE(brdp) \
558 if (brdp->enable != NULL) \
559 (* brdp->enable)(brdp);
561 #define EBRDDISABLE(brdp) \
562 if (brdp->disable != NULL) \
563 (* brdp->disable)(brdp);
565 #define EBRDINTR(brdp) \
566 if (brdp->intr != NULL) \
567 (* brdp->intr)(brdp);
569 #define EBRDRESET(brdp) \
570 if (brdp->reset != NULL) \
571 (* brdp->reset)(brdp);
573 #define EBRDGETMEMPTR(brdp,offset) \
574 (* brdp->getmemptr)(brdp, offset, __LINE__)
577 * Define the maximal baud rate, and the default baud base for ports.
579 #define STL_MAXBAUD 460800
580 #define STL_BAUDBASE 115200
581 #define STL_CLOSEDELAY (5 * HZ / 10)
583 /*****************************************************************************/
586 * Define macros to extract a brd or port number from a minor number.
588 #define MINOR2BRD(min) (((min) & 0xc0) >> 6)
589 #define MINOR2PORT(min) ((min) & 0x3f)
591 /*****************************************************************************/
594 * Prototype all functions in this driver!
597 static int stli_parsebrd(struct stlconf
*confp
, char **argp
);
598 static int stli_open(struct tty_struct
*tty
, struct file
*filp
);
599 static void stli_close(struct tty_struct
*tty
, struct file
*filp
);
600 static int stli_write(struct tty_struct
*tty
, const unsigned char *buf
, int count
);
601 static int stli_putchar(struct tty_struct
*tty
, unsigned char ch
);
602 static void stli_flushchars(struct tty_struct
*tty
);
603 static int stli_writeroom(struct tty_struct
*tty
);
604 static int stli_charsinbuffer(struct tty_struct
*tty
);
605 static int stli_ioctl(struct tty_struct
*tty
, struct file
*file
, unsigned int cmd
, unsigned long arg
);
606 static void stli_settermios(struct tty_struct
*tty
, struct ktermios
*old
);
607 static void stli_throttle(struct tty_struct
*tty
);
608 static void stli_unthrottle(struct tty_struct
*tty
);
609 static void stli_stop(struct tty_struct
*tty
);
610 static void stli_start(struct tty_struct
*tty
);
611 static void stli_flushbuffer(struct tty_struct
*tty
);
612 static int stli_breakctl(struct tty_struct
*tty
, int state
);
613 static void stli_waituntilsent(struct tty_struct
*tty
, int timeout
);
614 static void stli_sendxchar(struct tty_struct
*tty
, char ch
);
615 static void stli_hangup(struct tty_struct
*tty
);
616 static int stli_portinfo(struct stlibrd
*brdp
, struct stliport
*portp
, int portnr
, char *pos
);
618 static int stli_brdinit(struct stlibrd
*brdp
);
619 static int stli_startbrd(struct stlibrd
*brdp
);
620 static ssize_t
stli_memread(struct file
*fp
, char __user
*buf
, size_t count
, loff_t
*offp
);
621 static ssize_t
stli_memwrite(struct file
*fp
, const char __user
*buf
, size_t count
, loff_t
*offp
);
622 static int stli_memioctl(struct inode
*ip
, struct file
*fp
, unsigned int cmd
, unsigned long arg
);
623 static void stli_brdpoll(struct stlibrd
*brdp
, cdkhdr_t __iomem
*hdrp
);
624 static void stli_poll(unsigned long arg
);
625 static int stli_hostcmd(struct stlibrd
*brdp
, struct stliport
*portp
);
626 static int stli_initopen(struct tty_struct
*tty
, struct stlibrd
*brdp
, struct stliport
*portp
);
627 static int stli_rawopen(struct stlibrd
*brdp
, struct stliport
*portp
, unsigned long arg
, int wait
);
628 static int stli_rawclose(struct stlibrd
*brdp
, struct stliport
*portp
, unsigned long arg
, int wait
);
629 static int stli_waitcarrier(struct tty_struct
*tty
, struct stlibrd
*brdp
,
630 struct stliport
*portp
, struct file
*filp
);
631 static int stli_setport(struct tty_struct
*tty
);
632 static int stli_cmdwait(struct stlibrd
*brdp
, struct stliport
*portp
, unsigned long cmd
, void *arg
, int size
, int copyback
);
633 static void stli_sendcmd(struct stlibrd
*brdp
, struct stliport
*portp
, unsigned long cmd
, void *arg
, int size
, int copyback
);
634 static void __stli_sendcmd(struct stlibrd
*brdp
, struct stliport
*portp
, unsigned long cmd
, void *arg
, int size
, int copyback
);
635 static void stli_dodelaycmd(struct stliport
*portp
, cdkctrl_t __iomem
*cp
);
636 static void stli_mkasyport(struct tty_struct
*tty
, struct stliport
*portp
, asyport_t
*pp
, struct ktermios
*tiosp
);
637 static void stli_mkasysigs(asysigs_t
*sp
, int dtr
, int rts
);
638 static long stli_mktiocm(unsigned long sigvalue
);
639 static void stli_read(struct stlibrd
*brdp
, struct stliport
*portp
);
640 static int stli_getserial(struct stliport
*portp
, struct serial_struct __user
*sp
);
641 static int stli_setserial(struct tty_struct
*tty
, struct serial_struct __user
*sp
);
642 static int stli_getbrdstats(combrd_t __user
*bp
);
643 static int stli_getportstats(struct tty_struct
*tty
, struct stliport
*portp
, comstats_t __user
*cp
);
644 static int stli_portcmdstats(struct tty_struct
*tty
, struct stliport
*portp
);
645 static int stli_clrportstats(struct stliport
*portp
, comstats_t __user
*cp
);
646 static int stli_getportstruct(struct stliport __user
*arg
);
647 static int stli_getbrdstruct(struct stlibrd __user
*arg
);
648 static struct stlibrd
*stli_allocbrd(void);
650 static void stli_ecpinit(struct stlibrd
*brdp
);
651 static void stli_ecpenable(struct stlibrd
*brdp
);
652 static void stli_ecpdisable(struct stlibrd
*brdp
);
653 static void __iomem
*stli_ecpgetmemptr(struct stlibrd
*brdp
, unsigned long offset
, int line
);
654 static void stli_ecpreset(struct stlibrd
*brdp
);
655 static void stli_ecpintr(struct stlibrd
*brdp
);
656 static void stli_ecpeiinit(struct stlibrd
*brdp
);
657 static void stli_ecpeienable(struct stlibrd
*brdp
);
658 static void stli_ecpeidisable(struct stlibrd
*brdp
);
659 static void __iomem
*stli_ecpeigetmemptr(struct stlibrd
*brdp
, unsigned long offset
, int line
);
660 static void stli_ecpeireset(struct stlibrd
*brdp
);
661 static void stli_ecpmcenable(struct stlibrd
*brdp
);
662 static void stli_ecpmcdisable(struct stlibrd
*brdp
);
663 static void __iomem
*stli_ecpmcgetmemptr(struct stlibrd
*brdp
, unsigned long offset
, int line
);
664 static void stli_ecpmcreset(struct stlibrd
*brdp
);
665 static void stli_ecppciinit(struct stlibrd
*brdp
);
666 static void __iomem
*stli_ecppcigetmemptr(struct stlibrd
*brdp
, unsigned long offset
, int line
);
667 static void stli_ecppcireset(struct stlibrd
*brdp
);
669 static void stli_onbinit(struct stlibrd
*brdp
);
670 static void stli_onbenable(struct stlibrd
*brdp
);
671 static void stli_onbdisable(struct stlibrd
*brdp
);
672 static void __iomem
*stli_onbgetmemptr(struct stlibrd
*brdp
, unsigned long offset
, int line
);
673 static void stli_onbreset(struct stlibrd
*brdp
);
674 static void stli_onbeinit(struct stlibrd
*brdp
);
675 static void stli_onbeenable(struct stlibrd
*brdp
);
676 static void stli_onbedisable(struct stlibrd
*brdp
);
677 static void __iomem
*stli_onbegetmemptr(struct stlibrd
*brdp
, unsigned long offset
, int line
);
678 static void stli_onbereset(struct stlibrd
*brdp
);
679 static void stli_bbyinit(struct stlibrd
*brdp
);
680 static void __iomem
*stli_bbygetmemptr(struct stlibrd
*brdp
, unsigned long offset
, int line
);
681 static void stli_bbyreset(struct stlibrd
*brdp
);
682 static void stli_stalinit(struct stlibrd
*brdp
);
683 static void __iomem
*stli_stalgetmemptr(struct stlibrd
*brdp
, unsigned long offset
, int line
);
684 static void stli_stalreset(struct stlibrd
*brdp
);
686 static struct stliport
*stli_getport(unsigned int brdnr
, unsigned int panelnr
, unsigned int portnr
);
688 static int stli_initecp(struct stlibrd
*brdp
);
689 static int stli_initonb(struct stlibrd
*brdp
);
690 #if STLI_EISAPROBE != 0
691 static int stli_eisamemprobe(struct stlibrd
*brdp
);
693 static int stli_initports(struct stlibrd
*brdp
);
695 /*****************************************************************************/
698 * Define the driver info for a user level shared memory device. This
699 * device will work sort of like the /dev/kmem device - except that it
700 * will give access to the shared memory on the Stallion intelligent
701 * board. This is also a very useful debugging tool.
703 static const struct file_operations stli_fsiomem
= {
704 .owner
= THIS_MODULE
,
705 .read
= stli_memread
,
706 .write
= stli_memwrite
,
707 .ioctl
= stli_memioctl
,
710 /*****************************************************************************/
713 * Define a timer_list entry for our poll routine. The slave board
714 * is polled every so often to see if anything needs doing. This is
715 * much cheaper on host cpu than using interrupts. It turns out to
716 * not increase character latency by much either...
718 static DEFINE_TIMER(stli_timerlist
, stli_poll
, 0, 0);
720 static int stli_timeron
;
723 * Define the calculation for the timeout routine.
725 #define STLI_TIMEOUT (jiffies + 1)
727 /*****************************************************************************/
729 static struct class *istallion_class
;
731 static void stli_cleanup_ports(struct stlibrd
*brdp
)
733 struct stliport
*portp
;
735 struct tty_struct
*tty
;
737 for (j
= 0; j
< STL_MAXPORTS
; j
++) {
738 portp
= brdp
->ports
[j
];
740 tty
= tty_port_tty_get(&portp
->port
);
750 /*****************************************************************************/
753 * Parse the supplied argument string, into the board conf struct.
756 static int stli_parsebrd(struct stlconf
*confp
, char **argp
)
761 if (argp
[0] == NULL
|| *argp
[0] == 0)
764 for (sp
= argp
[0], i
= 0; ((*sp
!= 0) && (i
< 25)); sp
++, i
++)
767 for (i
= 0; i
< ARRAY_SIZE(stli_brdstr
); i
++) {
768 if (strcmp(stli_brdstr
[i
].name
, argp
[0]) == 0)
771 if (i
== ARRAY_SIZE(stli_brdstr
)) {
772 printk("STALLION: unknown board name, %s?\n", argp
[0]);
776 confp
->brdtype
= stli_brdstr
[i
].type
;
777 if (argp
[1] != NULL
&& *argp
[1] != 0)
778 confp
->ioaddr1
= simple_strtoul(argp
[1], NULL
, 0);
779 if (argp
[2] != NULL
&& *argp
[2] != 0)
780 confp
->memaddr
= simple_strtoul(argp
[2], NULL
, 0);
784 /*****************************************************************************/
786 static int stli_open(struct tty_struct
*tty
, struct file
*filp
)
788 struct stlibrd
*brdp
;
789 struct stliport
*portp
;
790 unsigned int minordev
, brdnr
, portnr
;
793 minordev
= tty
->index
;
794 brdnr
= MINOR2BRD(minordev
);
795 if (brdnr
>= stli_nrbrds
)
797 brdp
= stli_brds
[brdnr
];
800 if ((brdp
->state
& BST_STARTED
) == 0)
802 portnr
= MINOR2PORT(minordev
);
803 if (portnr
> brdp
->nrports
)
806 portp
= brdp
->ports
[portnr
];
809 if (portp
->devnr
< 1)
814 * Check if this port is in the middle of closing. If so then wait
815 * until it is closed then return error status based on flag settings.
816 * The sleep here does not need interrupt protection since the wakeup
817 * for it is done with the same context.
819 if (portp
->port
.flags
& ASYNC_CLOSING
) {
820 interruptible_sleep_on(&portp
->port
.close_wait
);
821 if (portp
->port
.flags
& ASYNC_HUP_NOTIFY
)
827 * On the first open of the device setup the port hardware, and
828 * initialize the per port data structure. Since initializing the port
829 * requires several commands to the board we will need to wait for any
830 * other open that is already initializing the port.
832 tty_port_tty_set(&portp
->port
, tty
);
833 tty
->driver_data
= portp
;
836 wait_event_interruptible(portp
->raw_wait
,
837 !test_bit(ST_INITIALIZING
, &portp
->state
));
838 if (signal_pending(current
))
841 if ((portp
->port
.flags
& ASYNC_INITIALIZED
) == 0) {
842 set_bit(ST_INITIALIZING
, &portp
->state
);
843 if ((rc
= stli_initopen(tty
, brdp
, portp
)) >= 0) {
844 portp
->port
.flags
|= ASYNC_INITIALIZED
;
845 clear_bit(TTY_IO_ERROR
, &tty
->flags
);
847 clear_bit(ST_INITIALIZING
, &portp
->state
);
848 wake_up_interruptible(&portp
->raw_wait
);
854 * Check if this port is in the middle of closing. If so then wait
855 * until it is closed then return error status, based on flag settings.
856 * The sleep here does not need interrupt protection since the wakeup
857 * for it is done with the same context.
859 if (portp
->port
.flags
& ASYNC_CLOSING
) {
860 interruptible_sleep_on(&portp
->port
.close_wait
);
861 if (portp
->port
.flags
& ASYNC_HUP_NOTIFY
)
867 * Based on type of open being done check if it can overlap with any
868 * previous opens still in effect. If we are a normal serial device
869 * then also we might have to wait for carrier.
871 if (!(filp
->f_flags
& O_NONBLOCK
)) {
872 if ((rc
= stli_waitcarrier(tty
, brdp
, portp
, filp
)) != 0)
875 portp
->port
.flags
|= ASYNC_NORMAL_ACTIVE
;
879 /*****************************************************************************/
881 static void stli_close(struct tty_struct
*tty
, struct file
*filp
)
883 struct stlibrd
*brdp
;
884 struct stliport
*portp
;
887 portp
= tty
->driver_data
;
891 spin_lock_irqsave(&stli_lock
, flags
);
892 if (tty_hung_up_p(filp
)) {
893 spin_unlock_irqrestore(&stli_lock
, flags
);
896 if ((tty
->count
== 1) && (portp
->port
.count
!= 1))
897 portp
->port
.count
= 1;
898 if (portp
->port
.count
-- > 1) {
899 spin_unlock_irqrestore(&stli_lock
, flags
);
903 portp
->port
.flags
|= ASYNC_CLOSING
;
906 * May want to wait for data to drain before closing. The BUSY flag
907 * keeps track of whether we are still transmitting or not. It is
908 * updated by messages from the slave - indicating when all chars
909 * really have drained.
911 if (tty
== stli_txcooktty
)
912 stli_flushchars(tty
);
914 spin_unlock_irqrestore(&stli_lock
, flags
);
916 if (portp
->closing_wait
!= ASYNC_CLOSING_WAIT_NONE
)
917 tty_wait_until_sent(tty
, portp
->closing_wait
);
919 portp
->port
.flags
&= ~ASYNC_INITIALIZED
;
920 brdp
= stli_brds
[portp
->brdnr
];
921 stli_rawclose(brdp
, portp
, 0, 0);
922 if (tty
->termios
->c_cflag
& HUPCL
) {
923 stli_mkasysigs(&portp
->asig
, 0, 0);
924 if (test_bit(ST_CMDING
, &portp
->state
))
925 set_bit(ST_DOSIGS
, &portp
->state
);
927 stli_sendcmd(brdp
, portp
, A_SETSIGNALS
, &portp
->asig
,
928 sizeof(asysigs_t
), 0);
930 clear_bit(ST_TXBUSY
, &portp
->state
);
931 clear_bit(ST_RXSTOP
, &portp
->state
);
932 set_bit(TTY_IO_ERROR
, &tty
->flags
);
933 tty_ldisc_flush(tty
);
934 set_bit(ST_DOFLUSHRX
, &portp
->state
);
935 stli_flushbuffer(tty
);
938 tty_port_tty_set(&portp
->port
, NULL
);
940 if (portp
->openwaitcnt
) {
941 if (portp
->close_delay
)
942 msleep_interruptible(jiffies_to_msecs(portp
->close_delay
));
943 wake_up_interruptible(&portp
->port
.open_wait
);
946 portp
->port
.flags
&= ~(ASYNC_NORMAL_ACTIVE
|ASYNC_CLOSING
);
947 wake_up_interruptible(&portp
->port
.close_wait
);
950 /*****************************************************************************/
953 * Carry out first open operations on a port. This involves a number of
954 * commands to be sent to the slave. We need to open the port, set the
955 * notification events, set the initial port settings, get and set the
956 * initial signal values. We sleep and wait in between each one. But
957 * this still all happens pretty quickly.
960 static int stli_initopen(struct tty_struct
*tty
,
961 struct stlibrd
*brdp
, struct stliport
*portp
)
967 if ((rc
= stli_rawopen(brdp
, portp
, 0, 1)) < 0)
970 memset(&nt
, 0, sizeof(asynotify_t
));
971 nt
.data
= (DT_TXLOW
| DT_TXEMPTY
| DT_RXBUSY
| DT_RXBREAK
);
973 if ((rc
= stli_cmdwait(brdp
, portp
, A_SETNOTIFY
, &nt
,
974 sizeof(asynotify_t
), 0)) < 0)
977 stli_mkasyport(tty
, portp
, &aport
, tty
->termios
);
978 if ((rc
= stli_cmdwait(brdp
, portp
, A_SETPORT
, &aport
,
979 sizeof(asyport_t
), 0)) < 0)
982 set_bit(ST_GETSIGS
, &portp
->state
);
983 if ((rc
= stli_cmdwait(brdp
, portp
, A_GETSIGNALS
, &portp
->asig
,
984 sizeof(asysigs_t
), 1)) < 0)
986 if (test_and_clear_bit(ST_GETSIGS
, &portp
->state
))
987 portp
->sigs
= stli_mktiocm(portp
->asig
.sigvalue
);
988 stli_mkasysigs(&portp
->asig
, 1, 1);
989 if ((rc
= stli_cmdwait(brdp
, portp
, A_SETSIGNALS
, &portp
->asig
,
990 sizeof(asysigs_t
), 0)) < 0)
996 /*****************************************************************************/
999 * Send an open message to the slave. This will sleep waiting for the
1000 * acknowledgement, so must have user context. We need to co-ordinate
1001 * with close events here, since we don't want open and close events
1005 static int stli_rawopen(struct stlibrd
*brdp
, struct stliport
*portp
, unsigned long arg
, int wait
)
1007 cdkhdr_t __iomem
*hdrp
;
1008 cdkctrl_t __iomem
*cp
;
1009 unsigned char __iomem
*bits
;
1010 unsigned long flags
;
1014 * Send a message to the slave to open this port.
1018 * Slave is already closing this port. This can happen if a hangup
1019 * occurs on this port. So we must wait until it is complete. The
1020 * order of opens and closes may not be preserved across shared
1021 * memory, so we must wait until it is complete.
1023 wait_event_interruptible(portp
->raw_wait
,
1024 !test_bit(ST_CLOSING
, &portp
->state
));
1025 if (signal_pending(current
)) {
1026 return -ERESTARTSYS
;
1030 * Everything is ready now, so write the open message into shared
1031 * memory. Once the message is in set the service bits to say that
1032 * this port wants service.
1034 spin_lock_irqsave(&brd_lock
, flags
);
1036 cp
= &((cdkasy_t __iomem
*) EBRDGETMEMPTR(brdp
, portp
->addr
))->ctrl
;
1037 writel(arg
, &cp
->openarg
);
1038 writeb(1, &cp
->open
);
1039 hdrp
= (cdkhdr_t __iomem
*) EBRDGETMEMPTR(brdp
, CDK_CDKADDR
);
1040 bits
= ((unsigned char __iomem
*) hdrp
) + brdp
->slaveoffset
+
1042 writeb(readb(bits
) | portp
->portbit
, bits
);
1046 spin_unlock_irqrestore(&brd_lock
, flags
);
1051 * Slave is in action, so now we must wait for the open acknowledgment
1055 set_bit(ST_OPENING
, &portp
->state
);
1056 spin_unlock_irqrestore(&brd_lock
, flags
);
1058 wait_event_interruptible(portp
->raw_wait
,
1059 !test_bit(ST_OPENING
, &portp
->state
));
1060 if (signal_pending(current
))
1063 if ((rc
== 0) && (portp
->rc
!= 0))
1068 /*****************************************************************************/
1071 * Send a close message to the slave. Normally this will sleep waiting
1072 * for the acknowledgement, but if wait parameter is 0 it will not. If
1073 * wait is true then must have user context (to sleep).
1076 static int stli_rawclose(struct stlibrd
*brdp
, struct stliport
*portp
, unsigned long arg
, int wait
)
1078 cdkhdr_t __iomem
*hdrp
;
1079 cdkctrl_t __iomem
*cp
;
1080 unsigned char __iomem
*bits
;
1081 unsigned long flags
;
1085 * Slave is already closing this port. This can happen if a hangup
1086 * occurs on this port.
1089 wait_event_interruptible(portp
->raw_wait
,
1090 !test_bit(ST_CLOSING
, &portp
->state
));
1091 if (signal_pending(current
)) {
1092 return -ERESTARTSYS
;
1097 * Write the close command into shared memory.
1099 spin_lock_irqsave(&brd_lock
, flags
);
1101 cp
= &((cdkasy_t __iomem
*) EBRDGETMEMPTR(brdp
, portp
->addr
))->ctrl
;
1102 writel(arg
, &cp
->closearg
);
1103 writeb(1, &cp
->close
);
1104 hdrp
= (cdkhdr_t __iomem
*) EBRDGETMEMPTR(brdp
, CDK_CDKADDR
);
1105 bits
= ((unsigned char __iomem
*) hdrp
) + brdp
->slaveoffset
+
1107 writeb(readb(bits
) |portp
->portbit
, bits
);
1110 set_bit(ST_CLOSING
, &portp
->state
);
1111 spin_unlock_irqrestore(&brd_lock
, flags
);
1117 * Slave is in action, so now we must wait for the open acknowledgment
1121 wait_event_interruptible(portp
->raw_wait
,
1122 !test_bit(ST_CLOSING
, &portp
->state
));
1123 if (signal_pending(current
))
1126 if ((rc
== 0) && (portp
->rc
!= 0))
1131 /*****************************************************************************/
1134 * Send a command to the slave and wait for the response. This must
1135 * have user context (it sleeps). This routine is generic in that it
1136 * can send any type of command. Its purpose is to wait for that command
1137 * to complete (as opposed to initiating the command then returning).
1140 static int stli_cmdwait(struct stlibrd
*brdp
, struct stliport
*portp
, unsigned long cmd
, void *arg
, int size
, int copyback
)
1142 wait_event_interruptible(portp
->raw_wait
,
1143 !test_bit(ST_CMDING
, &portp
->state
));
1144 if (signal_pending(current
))
1145 return -ERESTARTSYS
;
1147 stli_sendcmd(brdp
, portp
, cmd
, arg
, size
, copyback
);
1149 wait_event_interruptible(portp
->raw_wait
,
1150 !test_bit(ST_CMDING
, &portp
->state
));
1151 if (signal_pending(current
))
1152 return -ERESTARTSYS
;
1159 /*****************************************************************************/
1162 * Send the termios settings for this port to the slave. This sleeps
1163 * waiting for the command to complete - so must have user context.
1166 static int stli_setport(struct tty_struct
*tty
)
1168 struct stliport
*portp
= tty
->driver_data
;
1169 struct stlibrd
*brdp
;
1174 if (portp
->brdnr
>= stli_nrbrds
)
1176 brdp
= stli_brds
[portp
->brdnr
];
1180 stli_mkasyport(tty
, portp
, &aport
, tty
->termios
);
1181 return(stli_cmdwait(brdp
, portp
, A_SETPORT
, &aport
, sizeof(asyport_t
), 0));
1184 /*****************************************************************************/
1187 * Possibly need to wait for carrier (DCD signal) to come high. Say
1188 * maybe because if we are clocal then we don't need to wait...
1191 static int stli_waitcarrier(struct tty_struct
*tty
, struct stlibrd
*brdp
,
1192 struct stliport
*portp
, struct file
*filp
)
1194 unsigned long flags
;
1200 if (tty
->termios
->c_cflag
& CLOCAL
)
1203 spin_lock_irqsave(&stli_lock
, flags
);
1204 portp
->openwaitcnt
++;
1205 if (! tty_hung_up_p(filp
))
1206 portp
->port
.count
--;
1207 spin_unlock_irqrestore(&stli_lock
, flags
);
1210 stli_mkasysigs(&portp
->asig
, 1, 1);
1211 if ((rc
= stli_cmdwait(brdp
, portp
, A_SETSIGNALS
,
1212 &portp
->asig
, sizeof(asysigs_t
), 0)) < 0)
1214 if (tty_hung_up_p(filp
) ||
1215 ((portp
->port
.flags
& ASYNC_INITIALIZED
) == 0)) {
1216 if (portp
->port
.flags
& ASYNC_HUP_NOTIFY
)
1222 if (((portp
->port
.flags
& ASYNC_CLOSING
) == 0) &&
1223 (doclocal
|| (portp
->sigs
& TIOCM_CD
))) {
1226 if (signal_pending(current
)) {
1230 interruptible_sleep_on(&portp
->port
.open_wait
);
1233 spin_lock_irqsave(&stli_lock
, flags
);
1234 if (! tty_hung_up_p(filp
))
1235 portp
->port
.count
++;
1236 portp
->openwaitcnt
--;
1237 spin_unlock_irqrestore(&stli_lock
, flags
);
1242 /*****************************************************************************/
1245 * Write routine. Take the data and put it in the shared memory ring
1246 * queue. If port is not already sending chars then need to mark the
1247 * service bits for this port.
1250 static int stli_write(struct tty_struct
*tty
, const unsigned char *buf
, int count
)
1252 cdkasy_t __iomem
*ap
;
1253 cdkhdr_t __iomem
*hdrp
;
1254 unsigned char __iomem
*bits
;
1255 unsigned char __iomem
*shbuf
;
1256 unsigned char *chbuf
;
1257 struct stliport
*portp
;
1258 struct stlibrd
*brdp
;
1259 unsigned int len
, stlen
, head
, tail
, size
;
1260 unsigned long flags
;
1262 if (tty
== stli_txcooktty
)
1263 stli_flushchars(tty
);
1264 portp
= tty
->driver_data
;
1267 if (portp
->brdnr
>= stli_nrbrds
)
1269 brdp
= stli_brds
[portp
->brdnr
];
1272 chbuf
= (unsigned char *) buf
;
1275 * All data is now local, shove as much as possible into shared memory.
1277 spin_lock_irqsave(&brd_lock
, flags
);
1279 ap
= (cdkasy_t __iomem
*) EBRDGETMEMPTR(brdp
, portp
->addr
);
1280 head
= (unsigned int) readw(&ap
->txq
.head
);
1281 tail
= (unsigned int) readw(&ap
->txq
.tail
);
1282 if (tail
!= ((unsigned int) readw(&ap
->txq
.tail
)))
1283 tail
= (unsigned int) readw(&ap
->txq
.tail
);
1284 size
= portp
->txsize
;
1286 len
= size
- (head
- tail
) - 1;
1287 stlen
= size
- head
;
1289 len
= tail
- head
- 1;
1293 len
= min(len
, (unsigned int)count
);
1295 shbuf
= (char __iomem
*) EBRDGETMEMPTR(brdp
, portp
->txoffset
);
1298 stlen
= min(len
, stlen
);
1299 memcpy_toio(shbuf
+ head
, chbuf
, stlen
);
1310 ap
= (cdkasy_t __iomem
*) EBRDGETMEMPTR(brdp
, portp
->addr
);
1311 writew(head
, &ap
->txq
.head
);
1312 if (test_bit(ST_TXBUSY
, &portp
->state
)) {
1313 if (readl(&ap
->changed
.data
) & DT_TXEMPTY
)
1314 writel(readl(&ap
->changed
.data
) & ~DT_TXEMPTY
, &ap
->changed
.data
);
1316 hdrp
= (cdkhdr_t __iomem
*) EBRDGETMEMPTR(brdp
, CDK_CDKADDR
);
1317 bits
= ((unsigned char __iomem
*) hdrp
) + brdp
->slaveoffset
+
1319 writeb(readb(bits
) | portp
->portbit
, bits
);
1320 set_bit(ST_TXBUSY
, &portp
->state
);
1322 spin_unlock_irqrestore(&brd_lock
, flags
);
1327 /*****************************************************************************/
1330 * Output a single character. We put it into a temporary local buffer
1331 * (for speed) then write out that buffer when the flushchars routine
1332 * is called. There is a safety catch here so that if some other port
1333 * writes chars before the current buffer has been, then we write them
1334 * first them do the new ports.
1337 static int stli_putchar(struct tty_struct
*tty
, unsigned char ch
)
1339 if (tty
!= stli_txcooktty
) {
1340 if (stli_txcooktty
!= NULL
)
1341 stli_flushchars(stli_txcooktty
);
1342 stli_txcooktty
= tty
;
1345 stli_txcookbuf
[stli_txcooksize
++] = ch
;
1349 /*****************************************************************************/
1352 * Transfer characters from the local TX cooking buffer to the board.
1353 * We sort of ignore the tty that gets passed in here. We rely on the
1354 * info stored with the TX cook buffer to tell us which port to flush
1355 * the data on. In any case we clean out the TX cook buffer, for re-use
1359 static void stli_flushchars(struct tty_struct
*tty
)
1361 cdkhdr_t __iomem
*hdrp
;
1362 unsigned char __iomem
*bits
;
1363 cdkasy_t __iomem
*ap
;
1364 struct tty_struct
*cooktty
;
1365 struct stliport
*portp
;
1366 struct stlibrd
*brdp
;
1367 unsigned int len
, stlen
, head
, tail
, size
, count
, cooksize
;
1369 unsigned char __iomem
*shbuf
;
1370 unsigned long flags
;
1372 cooksize
= stli_txcooksize
;
1373 cooktty
= stli_txcooktty
;
1374 stli_txcooksize
= 0;
1375 stli_txcookrealsize
= 0;
1376 stli_txcooktty
= NULL
;
1380 if (cooktty
== NULL
)
1387 portp
= tty
->driver_data
;
1390 if (portp
->brdnr
>= stli_nrbrds
)
1392 brdp
= stli_brds
[portp
->brdnr
];
1396 spin_lock_irqsave(&brd_lock
, flags
);
1399 ap
= (cdkasy_t __iomem
*) EBRDGETMEMPTR(brdp
, portp
->addr
);
1400 head
= (unsigned int) readw(&ap
->txq
.head
);
1401 tail
= (unsigned int) readw(&ap
->txq
.tail
);
1402 if (tail
!= ((unsigned int) readw(&ap
->txq
.tail
)))
1403 tail
= (unsigned int) readw(&ap
->txq
.tail
);
1404 size
= portp
->txsize
;
1406 len
= size
- (head
- tail
) - 1;
1407 stlen
= size
- head
;
1409 len
= tail
- head
- 1;
1413 len
= min(len
, cooksize
);
1415 shbuf
= EBRDGETMEMPTR(brdp
, portp
->txoffset
);
1416 buf
= stli_txcookbuf
;
1419 stlen
= min(len
, stlen
);
1420 memcpy_toio(shbuf
+ head
, buf
, stlen
);
1431 ap
= (cdkasy_t __iomem
*) EBRDGETMEMPTR(brdp
, portp
->addr
);
1432 writew(head
, &ap
->txq
.head
);
1434 if (test_bit(ST_TXBUSY
, &portp
->state
)) {
1435 if (readl(&ap
->changed
.data
) & DT_TXEMPTY
)
1436 writel(readl(&ap
->changed
.data
) & ~DT_TXEMPTY
, &ap
->changed
.data
);
1438 hdrp
= (cdkhdr_t __iomem
*) EBRDGETMEMPTR(brdp
, CDK_CDKADDR
);
1439 bits
= ((unsigned char __iomem
*) hdrp
) + brdp
->slaveoffset
+
1441 writeb(readb(bits
) | portp
->portbit
, bits
);
1442 set_bit(ST_TXBUSY
, &portp
->state
);
1445 spin_unlock_irqrestore(&brd_lock
, flags
);
1448 /*****************************************************************************/
1450 static int stli_writeroom(struct tty_struct
*tty
)
1452 cdkasyrq_t __iomem
*rp
;
1453 struct stliport
*portp
;
1454 struct stlibrd
*brdp
;
1455 unsigned int head
, tail
, len
;
1456 unsigned long flags
;
1458 if (tty
== stli_txcooktty
) {
1459 if (stli_txcookrealsize
!= 0) {
1460 len
= stli_txcookrealsize
- stli_txcooksize
;
1465 portp
= tty
->driver_data
;
1468 if (portp
->brdnr
>= stli_nrbrds
)
1470 brdp
= stli_brds
[portp
->brdnr
];
1474 spin_lock_irqsave(&brd_lock
, flags
);
1476 rp
= &((cdkasy_t __iomem
*) EBRDGETMEMPTR(brdp
, portp
->addr
))->txq
;
1477 head
= (unsigned int) readw(&rp
->head
);
1478 tail
= (unsigned int) readw(&rp
->tail
);
1479 if (tail
!= ((unsigned int) readw(&rp
->tail
)))
1480 tail
= (unsigned int) readw(&rp
->tail
);
1481 len
= (head
>= tail
) ? (portp
->txsize
- (head
- tail
)) : (tail
- head
);
1484 spin_unlock_irqrestore(&brd_lock
, flags
);
1486 if (tty
== stli_txcooktty
) {
1487 stli_txcookrealsize
= len
;
1488 len
-= stli_txcooksize
;
1493 /*****************************************************************************/
1496 * Return the number of characters in the transmit buffer. Normally we
1497 * will return the number of chars in the shared memory ring queue.
1498 * We need to kludge around the case where the shared memory buffer is
1499 * empty but not all characters have drained yet, for this case just
1500 * return that there is 1 character in the buffer!
1503 static int stli_charsinbuffer(struct tty_struct
*tty
)
1505 cdkasyrq_t __iomem
*rp
;
1506 struct stliport
*portp
;
1507 struct stlibrd
*brdp
;
1508 unsigned int head
, tail
, len
;
1509 unsigned long flags
;
1511 if (tty
== stli_txcooktty
)
1512 stli_flushchars(tty
);
1513 portp
= tty
->driver_data
;
1516 if (portp
->brdnr
>= stli_nrbrds
)
1518 brdp
= stli_brds
[portp
->brdnr
];
1522 spin_lock_irqsave(&brd_lock
, flags
);
1524 rp
= &((cdkasy_t __iomem
*) EBRDGETMEMPTR(brdp
, portp
->addr
))->txq
;
1525 head
= (unsigned int) readw(&rp
->head
);
1526 tail
= (unsigned int) readw(&rp
->tail
);
1527 if (tail
!= ((unsigned int) readw(&rp
->tail
)))
1528 tail
= (unsigned int) readw(&rp
->tail
);
1529 len
= (head
>= tail
) ? (head
- tail
) : (portp
->txsize
- (tail
- head
));
1530 if ((len
== 0) && test_bit(ST_TXBUSY
, &portp
->state
))
1533 spin_unlock_irqrestore(&brd_lock
, flags
);
1538 /*****************************************************************************/
1541 * Generate the serial struct info.
1544 static int stli_getserial(struct stliport
*portp
, struct serial_struct __user
*sp
)
1546 struct serial_struct sio
;
1547 struct stlibrd
*brdp
;
1549 memset(&sio
, 0, sizeof(struct serial_struct
));
1550 sio
.type
= PORT_UNKNOWN
;
1551 sio
.line
= portp
->portnr
;
1553 sio
.flags
= portp
->port
.flags
;
1554 sio
.baud_base
= portp
->baud_base
;
1555 sio
.close_delay
= portp
->close_delay
;
1556 sio
.closing_wait
= portp
->closing_wait
;
1557 sio
.custom_divisor
= portp
->custom_divisor
;
1558 sio
.xmit_fifo_size
= 0;
1561 brdp
= stli_brds
[portp
->brdnr
];
1563 sio
.port
= brdp
->iobase
;
1565 return copy_to_user(sp
, &sio
, sizeof(struct serial_struct
)) ?
1569 /*****************************************************************************/
1572 * Set port according to the serial struct info.
1573 * At this point we do not do any auto-configure stuff, so we will
1574 * just quietly ignore any requests to change irq, etc.
1577 static int stli_setserial(struct tty_struct
*tty
, struct serial_struct __user
*sp
)
1579 struct serial_struct sio
;
1581 struct stliport
*portp
= tty
->driver_data
;
1583 if (copy_from_user(&sio
, sp
, sizeof(struct serial_struct
)))
1585 if (!capable(CAP_SYS_ADMIN
)) {
1586 if ((sio
.baud_base
!= portp
->baud_base
) ||
1587 (sio
.close_delay
!= portp
->close_delay
) ||
1588 ((sio
.flags
& ~ASYNC_USR_MASK
) !=
1589 (portp
->port
.flags
& ~ASYNC_USR_MASK
)))
1593 portp
->port
.flags
= (portp
->port
.flags
& ~ASYNC_USR_MASK
) |
1594 (sio
.flags
& ASYNC_USR_MASK
);
1595 portp
->baud_base
= sio
.baud_base
;
1596 portp
->close_delay
= sio
.close_delay
;
1597 portp
->closing_wait
= sio
.closing_wait
;
1598 portp
->custom_divisor
= sio
.custom_divisor
;
1600 if ((rc
= stli_setport(tty
)) < 0)
1605 /*****************************************************************************/
1607 static int stli_tiocmget(struct tty_struct
*tty
, struct file
*file
)
1609 struct stliport
*portp
= tty
->driver_data
;
1610 struct stlibrd
*brdp
;
1615 if (portp
->brdnr
>= stli_nrbrds
)
1617 brdp
= stli_brds
[portp
->brdnr
];
1620 if (tty
->flags
& (1 << TTY_IO_ERROR
))
1623 if ((rc
= stli_cmdwait(brdp
, portp
, A_GETSIGNALS
,
1624 &portp
->asig
, sizeof(asysigs_t
), 1)) < 0)
1627 return stli_mktiocm(portp
->asig
.sigvalue
);
1630 static int stli_tiocmset(struct tty_struct
*tty
, struct file
*file
,
1631 unsigned int set
, unsigned int clear
)
1633 struct stliport
*portp
= tty
->driver_data
;
1634 struct stlibrd
*brdp
;
1635 int rts
= -1, dtr
= -1;
1639 if (portp
->brdnr
>= stli_nrbrds
)
1641 brdp
= stli_brds
[portp
->brdnr
];
1644 if (tty
->flags
& (1 << TTY_IO_ERROR
))
1647 if (set
& TIOCM_RTS
)
1649 if (set
& TIOCM_DTR
)
1651 if (clear
& TIOCM_RTS
)
1653 if (clear
& TIOCM_DTR
)
1656 stli_mkasysigs(&portp
->asig
, dtr
, rts
);
1658 return stli_cmdwait(brdp
, portp
, A_SETSIGNALS
, &portp
->asig
,
1659 sizeof(asysigs_t
), 0);
1662 static int stli_ioctl(struct tty_struct
*tty
, struct file
*file
, unsigned int cmd
, unsigned long arg
)
1664 struct stliport
*portp
;
1665 struct stlibrd
*brdp
;
1667 void __user
*argp
= (void __user
*)arg
;
1669 portp
= tty
->driver_data
;
1672 if (portp
->brdnr
>= stli_nrbrds
)
1674 brdp
= stli_brds
[portp
->brdnr
];
1678 if ((cmd
!= TIOCGSERIAL
) && (cmd
!= TIOCSSERIAL
) &&
1679 (cmd
!= COM_GETPORTSTATS
) && (cmd
!= COM_CLRPORTSTATS
)) {
1680 if (tty
->flags
& (1 << TTY_IO_ERROR
))
1688 rc
= stli_getserial(portp
, argp
);
1691 rc
= stli_setserial(tty
, argp
);
1694 rc
= put_user(portp
->pflag
, (unsigned __user
*)argp
);
1697 if ((rc
= get_user(portp
->pflag
, (unsigned __user
*)argp
)) == 0)
1700 case COM_GETPORTSTATS
:
1701 rc
= stli_getportstats(tty
, portp
, argp
);
1703 case COM_CLRPORTSTATS
:
1704 rc
= stli_clrportstats(portp
, argp
);
1710 case TIOCSERGSTRUCT
:
1711 case TIOCSERGETMULTI
:
1712 case TIOCSERSETMULTI
:
1721 /*****************************************************************************/
1724 * This routine assumes that we have user context and can sleep.
1725 * Looks like it is true for the current ttys implementation..!!
1728 static void stli_settermios(struct tty_struct
*tty
, struct ktermios
*old
)
1730 struct stliport
*portp
;
1731 struct stlibrd
*brdp
;
1732 struct ktermios
*tiosp
;
1737 portp
= tty
->driver_data
;
1740 if (portp
->brdnr
>= stli_nrbrds
)
1742 brdp
= stli_brds
[portp
->brdnr
];
1746 tiosp
= tty
->termios
;
1748 stli_mkasyport(tty
, portp
, &aport
, tiosp
);
1749 stli_cmdwait(brdp
, portp
, A_SETPORT
, &aport
, sizeof(asyport_t
), 0);
1750 stli_mkasysigs(&portp
->asig
, ((tiosp
->c_cflag
& CBAUD
) ? 1 : 0), -1);
1751 stli_cmdwait(brdp
, portp
, A_SETSIGNALS
, &portp
->asig
,
1752 sizeof(asysigs_t
), 0);
1753 if ((old
->c_cflag
& CRTSCTS
) && ((tiosp
->c_cflag
& CRTSCTS
) == 0))
1754 tty
->hw_stopped
= 0;
1755 if (((old
->c_cflag
& CLOCAL
) == 0) && (tiosp
->c_cflag
& CLOCAL
))
1756 wake_up_interruptible(&portp
->port
.open_wait
);
1759 /*****************************************************************************/
1762 * Attempt to flow control who ever is sending us data. We won't really
1763 * do any flow control action here. We can't directly, and even if we
1764 * wanted to we would have to send a command to the slave. The slave
1765 * knows how to flow control, and will do so when its buffers reach its
1766 * internal high water marks. So what we will do is set a local state
1767 * bit that will stop us sending any RX data up from the poll routine
1768 * (which is the place where RX data from the slave is handled).
1771 static void stli_throttle(struct tty_struct
*tty
)
1773 struct stliport
*portp
= tty
->driver_data
;
1776 set_bit(ST_RXSTOP
, &portp
->state
);
1779 /*****************************************************************************/
1782 * Unflow control the device sending us data... That means that all
1783 * we have to do is clear the RXSTOP state bit. The next poll call
1784 * will then be able to pass the RX data back up.
1787 static void stli_unthrottle(struct tty_struct
*tty
)
1789 struct stliport
*portp
= tty
->driver_data
;
1792 clear_bit(ST_RXSTOP
, &portp
->state
);
1795 /*****************************************************************************/
1798 * Stop the transmitter.
1801 static void stli_stop(struct tty_struct
*tty
)
1805 /*****************************************************************************/
1808 * Start the transmitter again.
1811 static void stli_start(struct tty_struct
*tty
)
1815 /*****************************************************************************/
1818 * Hangup this port. This is pretty much like closing the port, only
1819 * a little more brutal. No waiting for data to drain. Shutdown the
1820 * port and maybe drop signals. This is rather tricky really. We want
1821 * to close the port as well.
1824 static void stli_hangup(struct tty_struct
*tty
)
1826 struct stliport
*portp
;
1827 struct stlibrd
*brdp
;
1828 unsigned long flags
;
1830 portp
= tty
->driver_data
;
1833 if (portp
->brdnr
>= stli_nrbrds
)
1835 brdp
= stli_brds
[portp
->brdnr
];
1839 portp
->port
.flags
&= ~ASYNC_INITIALIZED
;
1841 if (!test_bit(ST_CLOSING
, &portp
->state
))
1842 stli_rawclose(brdp
, portp
, 0, 0);
1844 spin_lock_irqsave(&stli_lock
, flags
);
1845 if (tty
->termios
->c_cflag
& HUPCL
) {
1846 stli_mkasysigs(&portp
->asig
, 0, 0);
1847 if (test_bit(ST_CMDING
, &portp
->state
)) {
1848 set_bit(ST_DOSIGS
, &portp
->state
);
1849 set_bit(ST_DOFLUSHTX
, &portp
->state
);
1850 set_bit(ST_DOFLUSHRX
, &portp
->state
);
1852 stli_sendcmd(brdp
, portp
, A_SETSIGNALSF
,
1853 &portp
->asig
, sizeof(asysigs_t
), 0);
1857 clear_bit(ST_TXBUSY
, &portp
->state
);
1858 clear_bit(ST_RXSTOP
, &portp
->state
);
1859 set_bit(TTY_IO_ERROR
, &tty
->flags
);
1860 tty_port_tty_set(&portp
->port
, NULL
);
1861 portp
->port
.flags
&= ~ASYNC_NORMAL_ACTIVE
;
1862 portp
->port
.count
= 0;
1863 spin_unlock_irqrestore(&stli_lock
, flags
);
1865 wake_up_interruptible(&portp
->port
.open_wait
);
1868 /*****************************************************************************/
1871 * Flush characters from the lower buffer. We may not have user context
1872 * so we cannot sleep waiting for it to complete. Also we need to check
1873 * if there is chars for this port in the TX cook buffer, and flush them
1877 static void stli_flushbuffer(struct tty_struct
*tty
)
1879 struct stliport
*portp
;
1880 struct stlibrd
*brdp
;
1881 unsigned long ftype
, flags
;
1883 portp
= tty
->driver_data
;
1886 if (portp
->brdnr
>= stli_nrbrds
)
1888 brdp
= stli_brds
[portp
->brdnr
];
1892 spin_lock_irqsave(&brd_lock
, flags
);
1893 if (tty
== stli_txcooktty
) {
1894 stli_txcooktty
= NULL
;
1895 stli_txcooksize
= 0;
1896 stli_txcookrealsize
= 0;
1898 if (test_bit(ST_CMDING
, &portp
->state
)) {
1899 set_bit(ST_DOFLUSHTX
, &portp
->state
);
1902 if (test_bit(ST_DOFLUSHRX
, &portp
->state
)) {
1904 clear_bit(ST_DOFLUSHRX
, &portp
->state
);
1906 __stli_sendcmd(brdp
, portp
, A_FLUSH
, &ftype
, sizeof(u32
), 0);
1908 spin_unlock_irqrestore(&brd_lock
, flags
);
1912 /*****************************************************************************/
1914 static int stli_breakctl(struct tty_struct
*tty
, int state
)
1916 struct stlibrd
*brdp
;
1917 struct stliport
*portp
;
1920 portp
= tty
->driver_data
;
1923 if (portp
->brdnr
>= stli_nrbrds
)
1925 brdp
= stli_brds
[portp
->brdnr
];
1929 arg
= (state
== -1) ? BREAKON
: BREAKOFF
;
1930 stli_cmdwait(brdp
, portp
, A_BREAK
, &arg
, sizeof(long), 0);
1934 /*****************************************************************************/
1936 static void stli_waituntilsent(struct tty_struct
*tty
, int timeout
)
1938 struct stliport
*portp
;
1943 portp
= tty
->driver_data
;
1949 tend
= jiffies
+ timeout
;
1951 while (test_bit(ST_TXBUSY
, &portp
->state
)) {
1952 if (signal_pending(current
))
1954 msleep_interruptible(20);
1955 if (time_after_eq(jiffies
, tend
))
1960 /*****************************************************************************/
1962 static void stli_sendxchar(struct tty_struct
*tty
, char ch
)
1964 struct stlibrd
*brdp
;
1965 struct stliport
*portp
;
1968 portp
= tty
->driver_data
;
1971 if (portp
->brdnr
>= stli_nrbrds
)
1973 brdp
= stli_brds
[portp
->brdnr
];
1977 memset(&actrl
, 0, sizeof(asyctrl_t
));
1978 if (ch
== STOP_CHAR(tty
)) {
1979 actrl
.rxctrl
= CT_STOPFLOW
;
1980 } else if (ch
== START_CHAR(tty
)) {
1981 actrl
.rxctrl
= CT_STARTFLOW
;
1983 actrl
.txctrl
= CT_SENDCHR
;
1986 stli_cmdwait(brdp
, portp
, A_PORTCTRL
, &actrl
, sizeof(asyctrl_t
), 0);
1989 /*****************************************************************************/
1994 * Format info for a specified port. The line is deliberately limited
1995 * to 80 characters. (If it is too long it will be truncated, if too
1996 * short then padded with spaces).
1999 static int stli_portinfo(struct stlibrd
*brdp
, struct stliport
*portp
, int portnr
, char *pos
)
2004 rc
= stli_portcmdstats(NULL
, portp
);
2007 if (brdp
->state
& BST_STARTED
) {
2008 switch (stli_comstats
.hwid
) {
2009 case 0: uart
= "2681"; break;
2010 case 1: uart
= "SC26198"; break;
2011 default:uart
= "CD1400"; break;
2016 sp
+= sprintf(sp
, "%d: uart:%s ", portnr
, uart
);
2018 if ((brdp
->state
& BST_STARTED
) && (rc
>= 0)) {
2019 sp
+= sprintf(sp
, "tx:%d rx:%d", (int) stli_comstats
.txtotal
,
2020 (int) stli_comstats
.rxtotal
);
2022 if (stli_comstats
.rxframing
)
2023 sp
+= sprintf(sp
, " fe:%d",
2024 (int) stli_comstats
.rxframing
);
2025 if (stli_comstats
.rxparity
)
2026 sp
+= sprintf(sp
, " pe:%d",
2027 (int) stli_comstats
.rxparity
);
2028 if (stli_comstats
.rxbreaks
)
2029 sp
+= sprintf(sp
, " brk:%d",
2030 (int) stli_comstats
.rxbreaks
);
2031 if (stli_comstats
.rxoverrun
)
2032 sp
+= sprintf(sp
, " oe:%d",
2033 (int) stli_comstats
.rxoverrun
);
2035 cnt
= sprintf(sp
, "%s%s%s%s%s ",
2036 (stli_comstats
.signals
& TIOCM_RTS
) ? "|RTS" : "",
2037 (stli_comstats
.signals
& TIOCM_CTS
) ? "|CTS" : "",
2038 (stli_comstats
.signals
& TIOCM_DTR
) ? "|DTR" : "",
2039 (stli_comstats
.signals
& TIOCM_CD
) ? "|DCD" : "",
2040 (stli_comstats
.signals
& TIOCM_DSR
) ? "|DSR" : "");
2045 for (cnt
= (sp
- pos
); (cnt
< (MAXLINE
- 1)); cnt
++)
2048 pos
[(MAXLINE
- 2)] = '+';
2049 pos
[(MAXLINE
- 1)] = '\n';
2054 /*****************************************************************************/
2057 * Port info, read from the /proc file system.
2060 static int stli_readproc(char *page
, char **start
, off_t off
, int count
, int *eof
, void *data
)
2062 struct stlibrd
*brdp
;
2063 struct stliport
*portp
;
2064 unsigned int brdnr
, portnr
, totalport
;
2073 pos
+= sprintf(pos
, "%s: version %s", stli_drvtitle
,
2075 while (pos
< (page
+ MAXLINE
- 1))
2082 * We scan through for each board, panel and port. The offset is
2083 * calculated on the fly, and irrelevant ports are skipped.
2085 for (brdnr
= 0; (brdnr
< stli_nrbrds
); brdnr
++) {
2086 brdp
= stli_brds
[brdnr
];
2089 if (brdp
->state
== 0)
2092 maxoff
= curoff
+ (brdp
->nrports
* MAXLINE
);
2093 if (off
>= maxoff
) {
2098 totalport
= brdnr
* STL_MAXPORTS
;
2099 for (portnr
= 0; (portnr
< brdp
->nrports
); portnr
++,
2101 portp
= brdp
->ports
[portnr
];
2104 if (off
>= (curoff
+= MAXLINE
))
2106 if ((pos
- page
+ MAXLINE
) > count
)
2108 pos
+= stli_portinfo(brdp
, portp
, totalport
, pos
);
2119 /*****************************************************************************/
2122 * Generic send command routine. This will send a message to the slave,
2123 * of the specified type with the specified argument. Must be very
2124 * careful of data that will be copied out from shared memory -
2125 * containing command results. The command completion is all done from
2126 * a poll routine that does not have user context. Therefore you cannot
2127 * copy back directly into user space, or to the kernel stack of a
2128 * process. This routine does not sleep, so can be called from anywhere.
2130 * The caller must hold the brd_lock (see also stli_sendcmd the usual
2134 static void __stli_sendcmd(struct stlibrd
*brdp
, struct stliport
*portp
, unsigned long cmd
, void *arg
, int size
, int copyback
)
2136 cdkhdr_t __iomem
*hdrp
;
2137 cdkctrl_t __iomem
*cp
;
2138 unsigned char __iomem
*bits
;
2140 if (test_bit(ST_CMDING
, &portp
->state
)) {
2141 printk(KERN_ERR
"STALLION: command already busy, cmd=%x!\n",
2147 cp
= &((cdkasy_t __iomem
*) EBRDGETMEMPTR(brdp
, portp
->addr
))->ctrl
;
2149 memcpy_toio((void __iomem
*) &(cp
->args
[0]), arg
, size
);
2152 portp
->argsize
= size
;
2155 writel(0, &cp
->status
);
2156 writel(cmd
, &cp
->cmd
);
2157 hdrp
= (cdkhdr_t __iomem
*) EBRDGETMEMPTR(brdp
, CDK_CDKADDR
);
2158 bits
= ((unsigned char __iomem
*) hdrp
) + brdp
->slaveoffset
+
2160 writeb(readb(bits
) | portp
->portbit
, bits
);
2161 set_bit(ST_CMDING
, &portp
->state
);
2165 static void stli_sendcmd(struct stlibrd
*brdp
, struct stliport
*portp
, unsigned long cmd
, void *arg
, int size
, int copyback
)
2167 unsigned long flags
;
2169 spin_lock_irqsave(&brd_lock
, flags
);
2170 __stli_sendcmd(brdp
, portp
, cmd
, arg
, size
, copyback
);
2171 spin_unlock_irqrestore(&brd_lock
, flags
);
2174 /*****************************************************************************/
2177 * Read data from shared memory. This assumes that the shared memory
2178 * is enabled and that interrupts are off. Basically we just empty out
2179 * the shared memory buffer into the tty buffer. Must be careful to
2180 * handle the case where we fill up the tty buffer, but still have
2181 * more chars to unload.
2184 static void stli_read(struct stlibrd
*brdp
, struct stliport
*portp
)
2186 cdkasyrq_t __iomem
*rp
;
2187 char __iomem
*shbuf
;
2188 struct tty_struct
*tty
;
2189 unsigned int head
, tail
, size
;
2190 unsigned int len
, stlen
;
2192 if (test_bit(ST_RXSTOP
, &portp
->state
))
2194 tty
= tty_port_tty_get(&portp
->port
);
2198 rp
= &((cdkasy_t __iomem
*) EBRDGETMEMPTR(brdp
, portp
->addr
))->rxq
;
2199 head
= (unsigned int) readw(&rp
->head
);
2200 if (head
!= ((unsigned int) readw(&rp
->head
)))
2201 head
= (unsigned int) readw(&rp
->head
);
2202 tail
= (unsigned int) readw(&rp
->tail
);
2203 size
= portp
->rxsize
;
2208 len
= size
- (tail
- head
);
2209 stlen
= size
- tail
;
2212 len
= tty_buffer_request_room(tty
, len
);
2214 shbuf
= (char __iomem
*) EBRDGETMEMPTR(brdp
, portp
->rxoffset
);
2217 unsigned char *cptr
;
2219 stlen
= min(len
, stlen
);
2220 tty_prepare_flip_string(tty
, &cptr
, stlen
);
2221 memcpy_fromio(cptr
, shbuf
+ tail
, stlen
);
2229 rp
= &((cdkasy_t __iomem
*) EBRDGETMEMPTR(brdp
, portp
->addr
))->rxq
;
2230 writew(tail
, &rp
->tail
);
2233 set_bit(ST_RXING
, &portp
->state
);
2235 tty_schedule_flip(tty
);
2239 /*****************************************************************************/
2242 * Set up and carry out any delayed commands. There is only a small set
2243 * of slave commands that can be done "off-level". So it is not too
2244 * difficult to deal with them here.
2247 static void stli_dodelaycmd(struct stliport
*portp
, cdkctrl_t __iomem
*cp
)
2251 if (test_bit(ST_DOSIGS
, &portp
->state
)) {
2252 if (test_bit(ST_DOFLUSHTX
, &portp
->state
) &&
2253 test_bit(ST_DOFLUSHRX
, &portp
->state
))
2254 cmd
= A_SETSIGNALSF
;
2255 else if (test_bit(ST_DOFLUSHTX
, &portp
->state
))
2256 cmd
= A_SETSIGNALSFTX
;
2257 else if (test_bit(ST_DOFLUSHRX
, &portp
->state
))
2258 cmd
= A_SETSIGNALSFRX
;
2261 clear_bit(ST_DOFLUSHTX
, &portp
->state
);
2262 clear_bit(ST_DOFLUSHRX
, &portp
->state
);
2263 clear_bit(ST_DOSIGS
, &portp
->state
);
2264 memcpy_toio((void __iomem
*) &(cp
->args
[0]), (void *) &portp
->asig
,
2266 writel(0, &cp
->status
);
2267 writel(cmd
, &cp
->cmd
);
2268 set_bit(ST_CMDING
, &portp
->state
);
2269 } else if (test_bit(ST_DOFLUSHTX
, &portp
->state
) ||
2270 test_bit(ST_DOFLUSHRX
, &portp
->state
)) {
2271 cmd
= ((test_bit(ST_DOFLUSHTX
, &portp
->state
)) ? FLUSHTX
: 0);
2272 cmd
|= ((test_bit(ST_DOFLUSHRX
, &portp
->state
)) ? FLUSHRX
: 0);
2273 clear_bit(ST_DOFLUSHTX
, &portp
->state
);
2274 clear_bit(ST_DOFLUSHRX
, &portp
->state
);
2275 memcpy_toio((void __iomem
*) &(cp
->args
[0]), (void *) &cmd
, sizeof(int));
2276 writel(0, &cp
->status
);
2277 writel(A_FLUSH
, &cp
->cmd
);
2278 set_bit(ST_CMDING
, &portp
->state
);
2282 /*****************************************************************************/
2285 * Host command service checking. This handles commands or messages
2286 * coming from the slave to the host. Must have board shared memory
2287 * enabled and interrupts off when called. Notice that by servicing the
2288 * read data last we don't need to change the shared memory pointer
2289 * during processing (which is a slow IO operation).
2290 * Return value indicates if this port is still awaiting actions from
2291 * the slave (like open, command, or even TX data being sent). If 0
2292 * then port is still busy, otherwise no longer busy.
2295 static int stli_hostcmd(struct stlibrd
*brdp
, struct stliport
*portp
)
2297 cdkasy_t __iomem
*ap
;
2298 cdkctrl_t __iomem
*cp
;
2299 struct tty_struct
*tty
;
2301 unsigned long oldsigs
;
2304 ap
= (cdkasy_t __iomem
*) EBRDGETMEMPTR(brdp
, portp
->addr
);
2308 * Check if we are waiting for an open completion message.
2310 if (test_bit(ST_OPENING
, &portp
->state
)) {
2311 rc
= readl(&cp
->openarg
);
2312 if (readb(&cp
->open
) == 0 && rc
!= 0) {
2315 writel(0, &cp
->openarg
);
2317 clear_bit(ST_OPENING
, &portp
->state
);
2318 wake_up_interruptible(&portp
->raw_wait
);
2323 * Check if we are waiting for a close completion message.
2325 if (test_bit(ST_CLOSING
, &portp
->state
)) {
2326 rc
= (int) readl(&cp
->closearg
);
2327 if (readb(&cp
->close
) == 0 && rc
!= 0) {
2330 writel(0, &cp
->closearg
);
2332 clear_bit(ST_CLOSING
, &portp
->state
);
2333 wake_up_interruptible(&portp
->raw_wait
);
2338 * Check if we are waiting for a command completion message. We may
2339 * need to copy out the command results associated with this command.
2341 if (test_bit(ST_CMDING
, &portp
->state
)) {
2342 rc
= readl(&cp
->status
);
2343 if (readl(&cp
->cmd
) == 0 && rc
!= 0) {
2346 if (portp
->argp
!= NULL
) {
2347 memcpy_fromio(portp
->argp
, (void __iomem
*) &(cp
->args
[0]),
2351 writel(0, &cp
->status
);
2353 clear_bit(ST_CMDING
, &portp
->state
);
2354 stli_dodelaycmd(portp
, cp
);
2355 wake_up_interruptible(&portp
->raw_wait
);
2360 * Check for any notification messages ready. This includes lots of
2361 * different types of events - RX chars ready, RX break received,
2362 * TX data low or empty in the slave, modem signals changed state.
2369 tty
= tty_port_tty_get(&portp
->port
);
2371 if (nt
.signal
& SG_DCD
) {
2372 oldsigs
= portp
->sigs
;
2373 portp
->sigs
= stli_mktiocm(nt
.sigvalue
);
2374 clear_bit(ST_GETSIGS
, &portp
->state
);
2375 if ((portp
->sigs
& TIOCM_CD
) &&
2376 ((oldsigs
& TIOCM_CD
) == 0))
2377 wake_up_interruptible(&portp
->port
.open_wait
);
2378 if ((oldsigs
& TIOCM_CD
) &&
2379 ((portp
->sigs
& TIOCM_CD
) == 0)) {
2380 if (portp
->port
.flags
& ASYNC_CHECK_CD
) {
2387 if (nt
.data
& DT_TXEMPTY
)
2388 clear_bit(ST_TXBUSY
, &portp
->state
);
2389 if (nt
.data
& (DT_TXEMPTY
| DT_TXLOW
)) {
2396 if ((nt
.data
& DT_RXBREAK
) && (portp
->rxmarkmsk
& BRKINT
)) {
2398 tty_insert_flip_char(tty
, 0, TTY_BREAK
);
2399 if (portp
->port
.flags
& ASYNC_SAK
) {
2403 tty_schedule_flip(tty
);
2408 if (nt
.data
& DT_RXBUSY
) {
2410 stli_read(brdp
, portp
);
2415 * It might seem odd that we are checking for more RX chars here.
2416 * But, we need to handle the case where the tty buffer was previously
2417 * filled, but we had more characters to pass up. The slave will not
2418 * send any more RX notify messages until the RX buffer has been emptied.
2419 * But it will leave the service bits on (since the buffer is not empty).
2420 * So from here we can try to process more RX chars.
2422 if ((!donerx
) && test_bit(ST_RXING
, &portp
->state
)) {
2423 clear_bit(ST_RXING
, &portp
->state
);
2424 stli_read(brdp
, portp
);
2427 return((test_bit(ST_OPENING
, &portp
->state
) ||
2428 test_bit(ST_CLOSING
, &portp
->state
) ||
2429 test_bit(ST_CMDING
, &portp
->state
) ||
2430 test_bit(ST_TXBUSY
, &portp
->state
) ||
2431 test_bit(ST_RXING
, &portp
->state
)) ? 0 : 1);
2434 /*****************************************************************************/
2437 * Service all ports on a particular board. Assumes that the boards
2438 * shared memory is enabled, and that the page pointer is pointed
2439 * at the cdk header structure.
2442 static void stli_brdpoll(struct stlibrd
*brdp
, cdkhdr_t __iomem
*hdrp
)
2444 struct stliport
*portp
;
2445 unsigned char hostbits
[(STL_MAXCHANS
/ 8) + 1];
2446 unsigned char slavebits
[(STL_MAXCHANS
/ 8) + 1];
2447 unsigned char __iomem
*slavep
;
2448 int bitpos
, bitat
, bitsize
;
2449 int channr
, nrdevs
, slavebitchange
;
2451 bitsize
= brdp
->bitsize
;
2452 nrdevs
= brdp
->nrdevs
;
2455 * Check if slave wants any service. Basically we try to do as
2456 * little work as possible here. There are 2 levels of service
2457 * bits. So if there is nothing to do we bail early. We check
2458 * 8 service bits at a time in the inner loop, so we can bypass
2459 * the lot if none of them want service.
2461 memcpy_fromio(&hostbits
[0], (((unsigned char __iomem
*) hdrp
) + brdp
->hostoffset
),
2464 memset(&slavebits
[0], 0, bitsize
);
2467 for (bitpos
= 0; (bitpos
< bitsize
); bitpos
++) {
2468 if (hostbits
[bitpos
] == 0)
2470 channr
= bitpos
* 8;
2471 for (bitat
= 0x1; (channr
< nrdevs
); channr
++, bitat
<<= 1) {
2472 if (hostbits
[bitpos
] & bitat
) {
2473 portp
= brdp
->ports
[(channr
- 1)];
2474 if (stli_hostcmd(brdp
, portp
)) {
2476 slavebits
[bitpos
] |= bitat
;
2483 * If any of the ports are no longer busy then update them in the
2484 * slave request bits. We need to do this after, since a host port
2485 * service may initiate more slave requests.
2487 if (slavebitchange
) {
2488 hdrp
= (cdkhdr_t __iomem
*) EBRDGETMEMPTR(brdp
, CDK_CDKADDR
);
2489 slavep
= ((unsigned char __iomem
*) hdrp
) + brdp
->slaveoffset
;
2490 for (bitpos
= 0; (bitpos
< bitsize
); bitpos
++) {
2491 if (readb(slavebits
+ bitpos
))
2492 writeb(readb(slavep
+ bitpos
) & ~slavebits
[bitpos
], slavebits
+ bitpos
);
2497 /*****************************************************************************/
2500 * Driver poll routine. This routine polls the boards in use and passes
2501 * messages back up to host when necessary. This is actually very
2502 * CPU efficient, since we will always have the kernel poll clock, it
2503 * adds only a few cycles when idle (since board service can be
2504 * determined very easily), but when loaded generates no interrupts
2505 * (with their expensive associated context change).
2508 static void stli_poll(unsigned long arg
)
2510 cdkhdr_t __iomem
*hdrp
;
2511 struct stlibrd
*brdp
;
2514 mod_timer(&stli_timerlist
, STLI_TIMEOUT
);
2517 * Check each board and do any servicing required.
2519 for (brdnr
= 0; (brdnr
< stli_nrbrds
); brdnr
++) {
2520 brdp
= stli_brds
[brdnr
];
2523 if ((brdp
->state
& BST_STARTED
) == 0)
2526 spin_lock(&brd_lock
);
2528 hdrp
= (cdkhdr_t __iomem
*) EBRDGETMEMPTR(brdp
, CDK_CDKADDR
);
2529 if (readb(&hdrp
->hostreq
))
2530 stli_brdpoll(brdp
, hdrp
);
2532 spin_unlock(&brd_lock
);
2536 /*****************************************************************************/
2539 * Translate the termios settings into the port setting structure of
2543 static void stli_mkasyport(struct tty_struct
*tty
, struct stliport
*portp
,
2544 asyport_t
*pp
, struct ktermios
*tiosp
)
2546 memset(pp
, 0, sizeof(asyport_t
));
2549 * Start of by setting the baud, char size, parity and stop bit info.
2551 pp
->baudout
= tty_get_baud_rate(tty
);
2552 if ((tiosp
->c_cflag
& CBAUD
) == B38400
) {
2553 if ((portp
->port
.flags
& ASYNC_SPD_MASK
) == ASYNC_SPD_HI
)
2554 pp
->baudout
= 57600;
2555 else if ((portp
->port
.flags
& ASYNC_SPD_MASK
) == ASYNC_SPD_VHI
)
2556 pp
->baudout
= 115200;
2557 else if ((portp
->port
.flags
& ASYNC_SPD_MASK
) == ASYNC_SPD_SHI
)
2558 pp
->baudout
= 230400;
2559 else if ((portp
->port
.flags
& ASYNC_SPD_MASK
) == ASYNC_SPD_WARP
)
2560 pp
->baudout
= 460800;
2561 else if ((portp
->port
.flags
& ASYNC_SPD_MASK
) == ASYNC_SPD_CUST
)
2562 pp
->baudout
= (portp
->baud_base
/ portp
->custom_divisor
);
2564 if (pp
->baudout
> STL_MAXBAUD
)
2565 pp
->baudout
= STL_MAXBAUD
;
2566 pp
->baudin
= pp
->baudout
;
2568 switch (tiosp
->c_cflag
& CSIZE
) {
2583 if (tiosp
->c_cflag
& CSTOPB
)
2584 pp
->stopbs
= PT_STOP2
;
2586 pp
->stopbs
= PT_STOP1
;
2588 if (tiosp
->c_cflag
& PARENB
) {
2589 if (tiosp
->c_cflag
& PARODD
)
2590 pp
->parity
= PT_ODDPARITY
;
2592 pp
->parity
= PT_EVENPARITY
;
2594 pp
->parity
= PT_NOPARITY
;
2598 * Set up any flow control options enabled.
2600 if (tiosp
->c_iflag
& IXON
) {
2602 if (tiosp
->c_iflag
& IXANY
)
2603 pp
->flow
|= F_IXANY
;
2605 if (tiosp
->c_cflag
& CRTSCTS
)
2606 pp
->flow
|= (F_RTSFLOW
| F_CTSFLOW
);
2608 pp
->startin
= tiosp
->c_cc
[VSTART
];
2609 pp
->stopin
= tiosp
->c_cc
[VSTOP
];
2610 pp
->startout
= tiosp
->c_cc
[VSTART
];
2611 pp
->stopout
= tiosp
->c_cc
[VSTOP
];
2614 * Set up the RX char marking mask with those RX error types we must
2615 * catch. We can get the slave to help us out a little here, it will
2616 * ignore parity errors and breaks for us, and mark parity errors in
2619 if (tiosp
->c_iflag
& IGNPAR
)
2620 pp
->iflag
|= FI_IGNRXERRS
;
2621 if (tiosp
->c_iflag
& IGNBRK
)
2622 pp
->iflag
|= FI_IGNBREAK
;
2624 portp
->rxmarkmsk
= 0;
2625 if (tiosp
->c_iflag
& (INPCK
| PARMRK
))
2626 pp
->iflag
|= FI_1MARKRXERRS
;
2627 if (tiosp
->c_iflag
& BRKINT
)
2628 portp
->rxmarkmsk
|= BRKINT
;
2631 * Set up clocal processing as required.
2633 if (tiosp
->c_cflag
& CLOCAL
)
2634 portp
->port
.flags
&= ~ASYNC_CHECK_CD
;
2636 portp
->port
.flags
|= ASYNC_CHECK_CD
;
2639 * Transfer any persistent flags into the asyport structure.
2641 pp
->pflag
= (portp
->pflag
& 0xffff);
2642 pp
->vmin
= (portp
->pflag
& P_RXIMIN
) ? 1 : 0;
2643 pp
->vtime
= (portp
->pflag
& P_RXITIME
) ? 1 : 0;
2644 pp
->cc
[1] = (portp
->pflag
& P_RXTHOLD
) ? 1 : 0;
2647 /*****************************************************************************/
2650 * Construct a slave signals structure for setting the DTR and RTS
2651 * signals as specified.
2654 static void stli_mkasysigs(asysigs_t
*sp
, int dtr
, int rts
)
2656 memset(sp
, 0, sizeof(asysigs_t
));
2658 sp
->signal
|= SG_DTR
;
2659 sp
->sigvalue
|= ((dtr
> 0) ? SG_DTR
: 0);
2662 sp
->signal
|= SG_RTS
;
2663 sp
->sigvalue
|= ((rts
> 0) ? SG_RTS
: 0);
2667 /*****************************************************************************/
2670 * Convert the signals returned from the slave into a local TIOCM type
2671 * signals value. We keep them locally in TIOCM format.
2674 static long stli_mktiocm(unsigned long sigvalue
)
2677 tiocm
|= ((sigvalue
& SG_DCD
) ? TIOCM_CD
: 0);
2678 tiocm
|= ((sigvalue
& SG_CTS
) ? TIOCM_CTS
: 0);
2679 tiocm
|= ((sigvalue
& SG_RI
) ? TIOCM_RI
: 0);
2680 tiocm
|= ((sigvalue
& SG_DSR
) ? TIOCM_DSR
: 0);
2681 tiocm
|= ((sigvalue
& SG_DTR
) ? TIOCM_DTR
: 0);
2682 tiocm
|= ((sigvalue
& SG_RTS
) ? TIOCM_RTS
: 0);
2686 /*****************************************************************************/
2689 * All panels and ports actually attached have been worked out. All
2690 * we need to do here is set up the appropriate per port data structures.
2693 static int stli_initports(struct stlibrd
*brdp
)
2695 struct stliport
*portp
;
2696 unsigned int i
, panelnr
, panelport
;
2698 for (i
= 0, panelnr
= 0, panelport
= 0; (i
< brdp
->nrports
); i
++) {
2699 portp
= kzalloc(sizeof(struct stliport
), GFP_KERNEL
);
2701 printk("STALLION: failed to allocate port structure\n");
2704 tty_port_init(&portp
->port
);
2705 portp
->magic
= STLI_PORTMAGIC
;
2707 portp
->brdnr
= brdp
->brdnr
;
2708 portp
->panelnr
= panelnr
;
2709 portp
->baud_base
= STL_BAUDBASE
;
2710 portp
->close_delay
= STL_CLOSEDELAY
;
2711 portp
->closing_wait
= 30 * HZ
;
2712 init_waitqueue_head(&portp
->port
.open_wait
);
2713 init_waitqueue_head(&portp
->port
.close_wait
);
2714 init_waitqueue_head(&portp
->raw_wait
);
2716 if (panelport
>= brdp
->panels
[panelnr
]) {
2720 brdp
->ports
[i
] = portp
;
2726 /*****************************************************************************/
2729 * All the following routines are board specific hardware operations.
2732 static void stli_ecpinit(struct stlibrd
*brdp
)
2734 unsigned long memconf
;
2736 outb(ECP_ATSTOP
, (brdp
->iobase
+ ECP_ATCONFR
));
2738 outb(ECP_ATDISABLE
, (brdp
->iobase
+ ECP_ATCONFR
));
2741 memconf
= (brdp
->memaddr
& ECP_ATADDRMASK
) >> ECP_ATADDRSHFT
;
2742 outb(memconf
, (brdp
->iobase
+ ECP_ATMEMAR
));
2745 /*****************************************************************************/
2747 static void stli_ecpenable(struct stlibrd
*brdp
)
2749 outb(ECP_ATENABLE
, (brdp
->iobase
+ ECP_ATCONFR
));
2752 /*****************************************************************************/
2754 static void stli_ecpdisable(struct stlibrd
*brdp
)
2756 outb(ECP_ATDISABLE
, (brdp
->iobase
+ ECP_ATCONFR
));
2759 /*****************************************************************************/
2761 static void __iomem
*stli_ecpgetmemptr(struct stlibrd
*brdp
, unsigned long offset
, int line
)
2766 if (offset
> brdp
->memsize
) {
2767 printk(KERN_ERR
"STALLION: shared memory pointer=%x out of "
2768 "range at line=%d(%d), brd=%d\n",
2769 (int) offset
, line
, __LINE__
, brdp
->brdnr
);
2773 ptr
= brdp
->membase
+ (offset
% ECP_ATPAGESIZE
);
2774 val
= (unsigned char) (offset
/ ECP_ATPAGESIZE
);
2776 outb(val
, (brdp
->iobase
+ ECP_ATMEMPR
));
2780 /*****************************************************************************/
2782 static void stli_ecpreset(struct stlibrd
*brdp
)
2784 outb(ECP_ATSTOP
, (brdp
->iobase
+ ECP_ATCONFR
));
2786 outb(ECP_ATDISABLE
, (brdp
->iobase
+ ECP_ATCONFR
));
2790 /*****************************************************************************/
2792 static void stli_ecpintr(struct stlibrd
*brdp
)
2794 outb(0x1, brdp
->iobase
);
2797 /*****************************************************************************/
2800 * The following set of functions act on ECP EISA boards.
2803 static void stli_ecpeiinit(struct stlibrd
*brdp
)
2805 unsigned long memconf
;
2807 outb(0x1, (brdp
->iobase
+ ECP_EIBRDENAB
));
2808 outb(ECP_EISTOP
, (brdp
->iobase
+ ECP_EICONFR
));
2810 outb(ECP_EIDISABLE
, (brdp
->iobase
+ ECP_EICONFR
));
2813 memconf
= (brdp
->memaddr
& ECP_EIADDRMASKL
) >> ECP_EIADDRSHFTL
;
2814 outb(memconf
, (brdp
->iobase
+ ECP_EIMEMARL
));
2815 memconf
= (brdp
->memaddr
& ECP_EIADDRMASKH
) >> ECP_EIADDRSHFTH
;
2816 outb(memconf
, (brdp
->iobase
+ ECP_EIMEMARH
));
2819 /*****************************************************************************/
2821 static void stli_ecpeienable(struct stlibrd
*brdp
)
2823 outb(ECP_EIENABLE
, (brdp
->iobase
+ ECP_EICONFR
));
2826 /*****************************************************************************/
2828 static void stli_ecpeidisable(struct stlibrd
*brdp
)
2830 outb(ECP_EIDISABLE
, (brdp
->iobase
+ ECP_EICONFR
));
2833 /*****************************************************************************/
2835 static void __iomem
*stli_ecpeigetmemptr(struct stlibrd
*brdp
, unsigned long offset
, int line
)
2840 if (offset
> brdp
->memsize
) {
2841 printk(KERN_ERR
"STALLION: shared memory pointer=%x out of "
2842 "range at line=%d(%d), brd=%d\n",
2843 (int) offset
, line
, __LINE__
, brdp
->brdnr
);
2847 ptr
= brdp
->membase
+ (offset
% ECP_EIPAGESIZE
);
2848 if (offset
< ECP_EIPAGESIZE
)
2851 val
= ECP_EIENABLE
| 0x40;
2853 outb(val
, (brdp
->iobase
+ ECP_EICONFR
));
2857 /*****************************************************************************/
2859 static void stli_ecpeireset(struct stlibrd
*brdp
)
2861 outb(ECP_EISTOP
, (brdp
->iobase
+ ECP_EICONFR
));
2863 outb(ECP_EIDISABLE
, (brdp
->iobase
+ ECP_EICONFR
));
2867 /*****************************************************************************/
2870 * The following set of functions act on ECP MCA boards.
2873 static void stli_ecpmcenable(struct stlibrd
*brdp
)
2875 outb(ECP_MCENABLE
, (brdp
->iobase
+ ECP_MCCONFR
));
2878 /*****************************************************************************/
2880 static void stli_ecpmcdisable(struct stlibrd
*brdp
)
2882 outb(ECP_MCDISABLE
, (brdp
->iobase
+ ECP_MCCONFR
));
2885 /*****************************************************************************/
2887 static void __iomem
*stli_ecpmcgetmemptr(struct stlibrd
*brdp
, unsigned long offset
, int line
)
2892 if (offset
> brdp
->memsize
) {
2893 printk(KERN_ERR
"STALLION: shared memory pointer=%x out of "
2894 "range at line=%d(%d), brd=%d\n",
2895 (int) offset
, line
, __LINE__
, brdp
->brdnr
);
2899 ptr
= brdp
->membase
+ (offset
% ECP_MCPAGESIZE
);
2900 val
= ((unsigned char) (offset
/ ECP_MCPAGESIZE
)) | ECP_MCENABLE
;
2902 outb(val
, (brdp
->iobase
+ ECP_MCCONFR
));
2906 /*****************************************************************************/
2908 static void stli_ecpmcreset(struct stlibrd
*brdp
)
2910 outb(ECP_MCSTOP
, (brdp
->iobase
+ ECP_MCCONFR
));
2912 outb(ECP_MCDISABLE
, (brdp
->iobase
+ ECP_MCCONFR
));
2916 /*****************************************************************************/
2919 * The following set of functions act on ECP PCI boards.
2922 static void stli_ecppciinit(struct stlibrd
*brdp
)
2924 outb(ECP_PCISTOP
, (brdp
->iobase
+ ECP_PCICONFR
));
2926 outb(0, (brdp
->iobase
+ ECP_PCICONFR
));
2930 /*****************************************************************************/
2932 static void __iomem
*stli_ecppcigetmemptr(struct stlibrd
*brdp
, unsigned long offset
, int line
)
2937 if (offset
> brdp
->memsize
) {
2938 printk(KERN_ERR
"STALLION: shared memory pointer=%x out of "
2939 "range at line=%d(%d), board=%d\n",
2940 (int) offset
, line
, __LINE__
, brdp
->brdnr
);
2944 ptr
= brdp
->membase
+ (offset
% ECP_PCIPAGESIZE
);
2945 val
= (offset
/ ECP_PCIPAGESIZE
) << 1;
2947 outb(val
, (brdp
->iobase
+ ECP_PCICONFR
));
2951 /*****************************************************************************/
2953 static void stli_ecppcireset(struct stlibrd
*brdp
)
2955 outb(ECP_PCISTOP
, (brdp
->iobase
+ ECP_PCICONFR
));
2957 outb(0, (brdp
->iobase
+ ECP_PCICONFR
));
2961 /*****************************************************************************/
2964 * The following routines act on ONboards.
2967 static void stli_onbinit(struct stlibrd
*brdp
)
2969 unsigned long memconf
;
2971 outb(ONB_ATSTOP
, (brdp
->iobase
+ ONB_ATCONFR
));
2973 outb(ONB_ATDISABLE
, (brdp
->iobase
+ ONB_ATCONFR
));
2976 memconf
= (brdp
->memaddr
& ONB_ATADDRMASK
) >> ONB_ATADDRSHFT
;
2977 outb(memconf
, (brdp
->iobase
+ ONB_ATMEMAR
));
2978 outb(0x1, brdp
->iobase
);
2982 /*****************************************************************************/
2984 static void stli_onbenable(struct stlibrd
*brdp
)
2986 outb((brdp
->enabval
| ONB_ATENABLE
), (brdp
->iobase
+ ONB_ATCONFR
));
2989 /*****************************************************************************/
2991 static void stli_onbdisable(struct stlibrd
*brdp
)
2993 outb((brdp
->enabval
| ONB_ATDISABLE
), (brdp
->iobase
+ ONB_ATCONFR
));
2996 /*****************************************************************************/
2998 static void __iomem
*stli_onbgetmemptr(struct stlibrd
*brdp
, unsigned long offset
, int line
)
3002 if (offset
> brdp
->memsize
) {
3003 printk(KERN_ERR
"STALLION: shared memory pointer=%x out of "
3004 "range at line=%d(%d), brd=%d\n",
3005 (int) offset
, line
, __LINE__
, brdp
->brdnr
);
3008 ptr
= brdp
->membase
+ (offset
% ONB_ATPAGESIZE
);
3013 /*****************************************************************************/
3015 static void stli_onbreset(struct stlibrd
*brdp
)
3017 outb(ONB_ATSTOP
, (brdp
->iobase
+ ONB_ATCONFR
));
3019 outb(ONB_ATDISABLE
, (brdp
->iobase
+ ONB_ATCONFR
));
3023 /*****************************************************************************/
3026 * The following routines act on ONboard EISA.
3029 static void stli_onbeinit(struct stlibrd
*brdp
)
3031 unsigned long memconf
;
3033 outb(0x1, (brdp
->iobase
+ ONB_EIBRDENAB
));
3034 outb(ONB_EISTOP
, (brdp
->iobase
+ ONB_EICONFR
));
3036 outb(ONB_EIDISABLE
, (brdp
->iobase
+ ONB_EICONFR
));
3039 memconf
= (brdp
->memaddr
& ONB_EIADDRMASKL
) >> ONB_EIADDRSHFTL
;
3040 outb(memconf
, (brdp
->iobase
+ ONB_EIMEMARL
));
3041 memconf
= (brdp
->memaddr
& ONB_EIADDRMASKH
) >> ONB_EIADDRSHFTH
;
3042 outb(memconf
, (brdp
->iobase
+ ONB_EIMEMARH
));
3043 outb(0x1, brdp
->iobase
);
3047 /*****************************************************************************/
3049 static void stli_onbeenable(struct stlibrd
*brdp
)
3051 outb(ONB_EIENABLE
, (brdp
->iobase
+ ONB_EICONFR
));
3054 /*****************************************************************************/
3056 static void stli_onbedisable(struct stlibrd
*brdp
)
3058 outb(ONB_EIDISABLE
, (brdp
->iobase
+ ONB_EICONFR
));
3061 /*****************************************************************************/
3063 static void __iomem
*stli_onbegetmemptr(struct stlibrd
*brdp
, unsigned long offset
, int line
)
3068 if (offset
> brdp
->memsize
) {
3069 printk(KERN_ERR
"STALLION: shared memory pointer=%x out of "
3070 "range at line=%d(%d), brd=%d\n",
3071 (int) offset
, line
, __LINE__
, brdp
->brdnr
);
3075 ptr
= brdp
->membase
+ (offset
% ONB_EIPAGESIZE
);
3076 if (offset
< ONB_EIPAGESIZE
)
3079 val
= ONB_EIENABLE
| 0x40;
3081 outb(val
, (brdp
->iobase
+ ONB_EICONFR
));
3085 /*****************************************************************************/
3087 static void stli_onbereset(struct stlibrd
*brdp
)
3089 outb(ONB_EISTOP
, (brdp
->iobase
+ ONB_EICONFR
));
3091 outb(ONB_EIDISABLE
, (brdp
->iobase
+ ONB_EICONFR
));
3095 /*****************************************************************************/
3098 * The following routines act on Brumby boards.
3101 static void stli_bbyinit(struct stlibrd
*brdp
)
3103 outb(BBY_ATSTOP
, (brdp
->iobase
+ BBY_ATCONFR
));
3105 outb(0, (brdp
->iobase
+ BBY_ATCONFR
));
3107 outb(0x1, brdp
->iobase
);
3111 /*****************************************************************************/
3113 static void __iomem
*stli_bbygetmemptr(struct stlibrd
*brdp
, unsigned long offset
, int line
)
3118 BUG_ON(offset
> brdp
->memsize
);
3120 ptr
= brdp
->membase
+ (offset
% BBY_PAGESIZE
);
3121 val
= (unsigned char) (offset
/ BBY_PAGESIZE
);
3122 outb(val
, (brdp
->iobase
+ BBY_ATCONFR
));
3126 /*****************************************************************************/
3128 static void stli_bbyreset(struct stlibrd
*brdp
)
3130 outb(BBY_ATSTOP
, (brdp
->iobase
+ BBY_ATCONFR
));
3132 outb(0, (brdp
->iobase
+ BBY_ATCONFR
));
3136 /*****************************************************************************/
3139 * The following routines act on original old Stallion boards.
3142 static void stli_stalinit(struct stlibrd
*brdp
)
3144 outb(0x1, brdp
->iobase
);
3148 /*****************************************************************************/
3150 static void __iomem
*stli_stalgetmemptr(struct stlibrd
*brdp
, unsigned long offset
, int line
)
3152 BUG_ON(offset
> brdp
->memsize
);
3153 return brdp
->membase
+ (offset
% STAL_PAGESIZE
);
3156 /*****************************************************************************/
3158 static void stli_stalreset(struct stlibrd
*brdp
)
3162 vecp
= (u32 __iomem
*) (brdp
->membase
+ 0x30);
3163 writel(0xffff0000, vecp
);
3164 outb(0, brdp
->iobase
);
3168 /*****************************************************************************/
3171 * Try to find an ECP board and initialize it. This handles only ECP
3175 static int stli_initecp(struct stlibrd
*brdp
)
3178 cdkecpsig_t __iomem
*sigsp
;
3179 unsigned int status
, nxtid
;
3181 int retval
, panelnr
, nrports
;
3183 if ((brdp
->iobase
== 0) || (brdp
->memaddr
== 0)) {
3188 brdp
->iosize
= ECP_IOSIZE
;
3190 if (!request_region(brdp
->iobase
, brdp
->iosize
, "istallion")) {
3196 * Based on the specific board type setup the common vars to access
3197 * and enable shared memory. Set all board specific information now
3200 switch (brdp
->brdtype
) {
3202 brdp
->memsize
= ECP_MEMSIZE
;
3203 brdp
->pagesize
= ECP_ATPAGESIZE
;
3204 brdp
->init
= stli_ecpinit
;
3205 brdp
->enable
= stli_ecpenable
;
3206 brdp
->reenable
= stli_ecpenable
;
3207 brdp
->disable
= stli_ecpdisable
;
3208 brdp
->getmemptr
= stli_ecpgetmemptr
;
3209 brdp
->intr
= stli_ecpintr
;
3210 brdp
->reset
= stli_ecpreset
;
3211 name
= "serial(EC8/64)";
3215 brdp
->memsize
= ECP_MEMSIZE
;
3216 brdp
->pagesize
= ECP_EIPAGESIZE
;
3217 brdp
->init
= stli_ecpeiinit
;
3218 brdp
->enable
= stli_ecpeienable
;
3219 brdp
->reenable
= stli_ecpeienable
;
3220 brdp
->disable
= stli_ecpeidisable
;
3221 brdp
->getmemptr
= stli_ecpeigetmemptr
;
3222 brdp
->intr
= stli_ecpintr
;
3223 brdp
->reset
= stli_ecpeireset
;
3224 name
= "serial(EC8/64-EI)";
3228 brdp
->memsize
= ECP_MEMSIZE
;
3229 brdp
->pagesize
= ECP_MCPAGESIZE
;
3231 brdp
->enable
= stli_ecpmcenable
;
3232 brdp
->reenable
= stli_ecpmcenable
;
3233 brdp
->disable
= stli_ecpmcdisable
;
3234 brdp
->getmemptr
= stli_ecpmcgetmemptr
;
3235 brdp
->intr
= stli_ecpintr
;
3236 brdp
->reset
= stli_ecpmcreset
;
3237 name
= "serial(EC8/64-MCA)";
3241 brdp
->memsize
= ECP_PCIMEMSIZE
;
3242 brdp
->pagesize
= ECP_PCIPAGESIZE
;
3243 brdp
->init
= stli_ecppciinit
;
3244 brdp
->enable
= NULL
;
3245 brdp
->reenable
= NULL
;
3246 brdp
->disable
= NULL
;
3247 brdp
->getmemptr
= stli_ecppcigetmemptr
;
3248 brdp
->intr
= stli_ecpintr
;
3249 brdp
->reset
= stli_ecppcireset
;
3250 name
= "serial(EC/RA-PCI)";
3259 * The per-board operations structure is all set up, so now let's go
3260 * and get the board operational. Firstly initialize board configuration
3261 * registers. Set the memory mapping info so we can get at the boards
3266 brdp
->membase
= ioremap_nocache(brdp
->memaddr
, brdp
->memsize
);
3267 if (brdp
->membase
== NULL
) {
3273 * Now that all specific code is set up, enable the shared memory and
3274 * look for the a signature area that will tell us exactly what board
3275 * this is, and what it is connected to it.
3278 sigsp
= (cdkecpsig_t __iomem
*) EBRDGETMEMPTR(brdp
, CDK_SIGADDR
);
3279 memcpy_fromio(&sig
, sigsp
, sizeof(cdkecpsig_t
));
3282 if (sig
.magic
!= cpu_to_le32(ECP_MAGIC
)) {
3288 * Scan through the signature looking at the panels connected to the
3289 * board. Calculate the total number of ports as we go.
3291 for (panelnr
= 0, nxtid
= 0; (panelnr
< STL_MAXPANELS
); panelnr
++) {
3292 status
= sig
.panelid
[nxtid
];
3293 if ((status
& ECH_PNLIDMASK
) != nxtid
)
3296 brdp
->panelids
[panelnr
] = status
;
3297 nrports
= (status
& ECH_PNL16PORT
) ? 16 : 8;
3298 if ((nrports
== 16) && ((status
& ECH_PNLXPID
) == 0))
3300 brdp
->panels
[panelnr
] = nrports
;
3301 brdp
->nrports
+= nrports
;
3307 brdp
->state
|= BST_FOUND
;
3310 iounmap(brdp
->membase
);
3311 brdp
->membase
= NULL
;
3313 release_region(brdp
->iobase
, brdp
->iosize
);
3318 /*****************************************************************************/
3321 * Try to find an ONboard, Brumby or Stallion board and initialize it.
3322 * This handles only these board types.
3325 static int stli_initonb(struct stlibrd
*brdp
)
3328 cdkonbsig_t __iomem
*sigsp
;
3333 * Do a basic sanity check on the IO and memory addresses.
3335 if (brdp
->iobase
== 0 || brdp
->memaddr
== 0) {
3340 brdp
->iosize
= ONB_IOSIZE
;
3342 if (!request_region(brdp
->iobase
, brdp
->iosize
, "istallion")) {
3348 * Based on the specific board type setup the common vars to access
3349 * and enable shared memory. Set all board specific information now
3352 switch (brdp
->brdtype
) {
3355 brdp
->memsize
= ONB_MEMSIZE
;
3356 brdp
->pagesize
= ONB_ATPAGESIZE
;
3357 brdp
->init
= stli_onbinit
;
3358 brdp
->enable
= stli_onbenable
;
3359 brdp
->reenable
= stli_onbenable
;
3360 brdp
->disable
= stli_onbdisable
;
3361 brdp
->getmemptr
= stli_onbgetmemptr
;
3362 brdp
->intr
= stli_ecpintr
;
3363 brdp
->reset
= stli_onbreset
;
3364 if (brdp
->memaddr
> 0x100000)
3365 brdp
->enabval
= ONB_MEMENABHI
;
3367 brdp
->enabval
= ONB_MEMENABLO
;
3368 name
= "serial(ONBoard)";
3372 brdp
->memsize
= ONB_EIMEMSIZE
;
3373 brdp
->pagesize
= ONB_EIPAGESIZE
;
3374 brdp
->init
= stli_onbeinit
;
3375 brdp
->enable
= stli_onbeenable
;
3376 brdp
->reenable
= stli_onbeenable
;
3377 brdp
->disable
= stli_onbedisable
;
3378 brdp
->getmemptr
= stli_onbegetmemptr
;
3379 brdp
->intr
= stli_ecpintr
;
3380 brdp
->reset
= stli_onbereset
;
3381 name
= "serial(ONBoard/E)";
3385 brdp
->memsize
= BBY_MEMSIZE
;
3386 brdp
->pagesize
= BBY_PAGESIZE
;
3387 brdp
->init
= stli_bbyinit
;
3388 brdp
->enable
= NULL
;
3389 brdp
->reenable
= NULL
;
3390 brdp
->disable
= NULL
;
3391 brdp
->getmemptr
= stli_bbygetmemptr
;
3392 brdp
->intr
= stli_ecpintr
;
3393 brdp
->reset
= stli_bbyreset
;
3394 name
= "serial(Brumby)";
3398 brdp
->memsize
= STAL_MEMSIZE
;
3399 brdp
->pagesize
= STAL_PAGESIZE
;
3400 brdp
->init
= stli_stalinit
;
3401 brdp
->enable
= NULL
;
3402 brdp
->reenable
= NULL
;
3403 brdp
->disable
= NULL
;
3404 brdp
->getmemptr
= stli_stalgetmemptr
;
3405 brdp
->intr
= stli_ecpintr
;
3406 brdp
->reset
= stli_stalreset
;
3407 name
= "serial(Stallion)";
3416 * The per-board operations structure is all set up, so now let's go
3417 * and get the board operational. Firstly initialize board configuration
3418 * registers. Set the memory mapping info so we can get at the boards
3423 brdp
->membase
= ioremap_nocache(brdp
->memaddr
, brdp
->memsize
);
3424 if (brdp
->membase
== NULL
) {
3430 * Now that all specific code is set up, enable the shared memory and
3431 * look for the a signature area that will tell us exactly what board
3432 * this is, and how many ports.
3435 sigsp
= (cdkonbsig_t __iomem
*) EBRDGETMEMPTR(brdp
, CDK_SIGADDR
);
3436 memcpy_fromio(&sig
, sigsp
, sizeof(cdkonbsig_t
));
3439 if (sig
.magic0
!= cpu_to_le16(ONB_MAGIC0
) ||
3440 sig
.magic1
!= cpu_to_le16(ONB_MAGIC1
) ||
3441 sig
.magic2
!= cpu_to_le16(ONB_MAGIC2
) ||
3442 sig
.magic3
!= cpu_to_le16(ONB_MAGIC3
)) {
3448 * Scan through the signature alive mask and calculate how many ports
3449 * there are on this board.
3455 for (i
= 0; (i
< 16); i
++) {
3456 if (((sig
.amask0
<< i
) & 0x8000) == 0)
3461 brdp
->panels
[0] = brdp
->nrports
;
3464 brdp
->state
|= BST_FOUND
;
3467 iounmap(brdp
->membase
);
3468 brdp
->membase
= NULL
;
3470 release_region(brdp
->iobase
, brdp
->iosize
);
3475 /*****************************************************************************/
3478 * Start up a running board. This routine is only called after the
3479 * code has been down loaded to the board and is operational. It will
3480 * read in the memory map, and get the show on the road...
3483 static int stli_startbrd(struct stlibrd
*brdp
)
3485 cdkhdr_t __iomem
*hdrp
;
3486 cdkmem_t __iomem
*memp
;
3487 cdkasy_t __iomem
*ap
;
3488 unsigned long flags
;
3489 unsigned int portnr
, nrdevs
, i
;
3490 struct stliport
*portp
;
3494 spin_lock_irqsave(&brd_lock
, flags
);
3496 hdrp
= (cdkhdr_t __iomem
*) EBRDGETMEMPTR(brdp
, CDK_CDKADDR
);
3497 nrdevs
= hdrp
->nrdevs
;
3500 printk("%s(%d): CDK version %d.%d.%d --> "
3501 "nrdevs=%d memp=%x hostp=%x slavep=%x\n",
3502 __FILE__
, __LINE__
, readb(&hdrp
->ver_release
), readb(&hdrp
->ver_modification
),
3503 readb(&hdrp
->ver_fix
), nrdevs
, (int) readl(&hdrp
->memp
), readl(&hdrp
->hostp
),
3504 readl(&hdrp
->slavep
));
3507 if (nrdevs
< (brdp
->nrports
+ 1)) {
3508 printk(KERN_ERR
"STALLION: slave failed to allocate memory for "
3509 "all devices, devices=%d\n", nrdevs
);
3510 brdp
->nrports
= nrdevs
- 1;
3512 brdp
->nrdevs
= nrdevs
;
3513 brdp
->hostoffset
= hdrp
->hostp
- CDK_CDKADDR
;
3514 brdp
->slaveoffset
= hdrp
->slavep
- CDK_CDKADDR
;
3515 brdp
->bitsize
= (nrdevs
+ 7) / 8;
3516 memoff
= readl(&hdrp
->memp
);
3517 if (memoff
> brdp
->memsize
) {
3518 printk(KERN_ERR
"STALLION: corrupted shared memory region?\n");
3520 goto stli_donestartup
;
3522 memp
= (cdkmem_t __iomem
*) EBRDGETMEMPTR(brdp
, memoff
);
3523 if (readw(&memp
->dtype
) != TYP_ASYNCTRL
) {
3524 printk(KERN_ERR
"STALLION: no slave control device found\n");
3525 goto stli_donestartup
;
3530 * Cycle through memory allocation of each port. We are guaranteed to
3531 * have all ports inside the first page of slave window, so no need to
3532 * change pages while reading memory map.
3534 for (i
= 1, portnr
= 0; (i
< nrdevs
); i
++, portnr
++, memp
++) {
3535 if (readw(&memp
->dtype
) != TYP_ASYNC
)
3537 portp
= brdp
->ports
[portnr
];
3541 portp
->addr
= readl(&memp
->offset
);
3542 portp
->reqbit
= (unsigned char) (0x1 << (i
* 8 / nrdevs
));
3543 portp
->portidx
= (unsigned char) (i
/ 8);
3544 portp
->portbit
= (unsigned char) (0x1 << (i
% 8));
3547 writeb(0xff, &hdrp
->slavereq
);
3550 * For each port setup a local copy of the RX and TX buffer offsets
3551 * and sizes. We do this separate from the above, because we need to
3552 * move the shared memory page...
3554 for (i
= 1, portnr
= 0; (i
< nrdevs
); i
++, portnr
++) {
3555 portp
= brdp
->ports
[portnr
];
3558 if (portp
->addr
== 0)
3560 ap
= (cdkasy_t __iomem
*) EBRDGETMEMPTR(brdp
, portp
->addr
);
3562 portp
->rxsize
= readw(&ap
->rxq
.size
);
3563 portp
->txsize
= readw(&ap
->txq
.size
);
3564 portp
->rxoffset
= readl(&ap
->rxq
.offset
);
3565 portp
->txoffset
= readl(&ap
->txq
.offset
);
3571 spin_unlock_irqrestore(&brd_lock
, flags
);
3574 brdp
->state
|= BST_STARTED
;
3576 if (! stli_timeron
) {
3578 mod_timer(&stli_timerlist
, STLI_TIMEOUT
);
3584 /*****************************************************************************/
3587 * Probe and initialize the specified board.
3590 static int __devinit
stli_brdinit(struct stlibrd
*brdp
)
3594 switch (brdp
->brdtype
) {
3599 retval
= stli_initecp(brdp
);
3606 retval
= stli_initonb(brdp
);
3609 printk(KERN_ERR
"STALLION: board=%d is unknown board "
3610 "type=%d\n", brdp
->brdnr
, brdp
->brdtype
);
3617 stli_initports(brdp
);
3618 printk(KERN_INFO
"STALLION: %s found, board=%d io=%x mem=%x "
3619 "nrpanels=%d nrports=%d\n", stli_brdnames
[brdp
->brdtype
],
3620 brdp
->brdnr
, brdp
->iobase
, (int) brdp
->memaddr
,
3621 brdp
->nrpanels
, brdp
->nrports
);
3625 #if STLI_EISAPROBE != 0
3626 /*****************************************************************************/
3629 * Probe around trying to find where the EISA boards shared memory
3630 * might be. This is a bit if hack, but it is the best we can do.
3633 static int stli_eisamemprobe(struct stlibrd
*brdp
)
3635 cdkecpsig_t ecpsig
, __iomem
*ecpsigp
;
3636 cdkonbsig_t onbsig
, __iomem
*onbsigp
;
3640 * First up we reset the board, to get it into a known state. There
3641 * is only 2 board types here we need to worry about. Don;t use the
3642 * standard board init routine here, it programs up the shared
3643 * memory address, and we don't know it yet...
3645 if (brdp
->brdtype
== BRD_ECPE
) {
3646 outb(0x1, (brdp
->iobase
+ ECP_EIBRDENAB
));
3647 outb(ECP_EISTOP
, (brdp
->iobase
+ ECP_EICONFR
));
3649 outb(ECP_EIDISABLE
, (brdp
->iobase
+ ECP_EICONFR
));
3651 stli_ecpeienable(brdp
);
3652 } else if (brdp
->brdtype
== BRD_ONBOARDE
) {
3653 outb(0x1, (brdp
->iobase
+ ONB_EIBRDENAB
));
3654 outb(ONB_EISTOP
, (brdp
->iobase
+ ONB_EICONFR
));
3656 outb(ONB_EIDISABLE
, (brdp
->iobase
+ ONB_EICONFR
));
3658 outb(0x1, brdp
->iobase
);
3660 stli_onbeenable(brdp
);
3666 brdp
->memsize
= ECP_MEMSIZE
;
3669 * Board shared memory is enabled, so now we have a poke around and
3670 * see if we can find it.
3672 for (i
= 0; (i
< stli_eisamempsize
); i
++) {
3673 brdp
->memaddr
= stli_eisamemprobeaddrs
[i
];
3674 brdp
->membase
= ioremap_nocache(brdp
->memaddr
, brdp
->memsize
);
3675 if (brdp
->membase
== NULL
)
3678 if (brdp
->brdtype
== BRD_ECPE
) {
3679 ecpsigp
= stli_ecpeigetmemptr(brdp
,
3680 CDK_SIGADDR
, __LINE__
);
3681 memcpy_fromio(&ecpsig
, ecpsigp
, sizeof(cdkecpsig_t
));
3682 if (ecpsig
.magic
== cpu_to_le32(ECP_MAGIC
))
3685 onbsigp
= (cdkonbsig_t __iomem
*) stli_onbegetmemptr(brdp
,
3686 CDK_SIGADDR
, __LINE__
);
3687 memcpy_fromio(&onbsig
, onbsigp
, sizeof(cdkonbsig_t
));
3688 if ((onbsig
.magic0
== cpu_to_le16(ONB_MAGIC0
)) &&
3689 (onbsig
.magic1
== cpu_to_le16(ONB_MAGIC1
)) &&
3690 (onbsig
.magic2
== cpu_to_le16(ONB_MAGIC2
)) &&
3691 (onbsig
.magic3
== cpu_to_le16(ONB_MAGIC3
)))
3695 iounmap(brdp
->membase
);
3701 * Regardless of whether we found the shared memory or not we must
3702 * disable the region. After that return success or failure.
3704 if (brdp
->brdtype
== BRD_ECPE
)
3705 stli_ecpeidisable(brdp
);
3707 stli_onbedisable(brdp
);
3711 brdp
->membase
= NULL
;
3712 printk(KERN_ERR
"STALLION: failed to probe shared memory "
3713 "region for %s in EISA slot=%d\n",
3714 stli_brdnames
[brdp
->brdtype
], (brdp
->iobase
>> 12));
3721 static int stli_getbrdnr(void)
3725 for (i
= 0; i
< STL_MAXBRDS
; i
++) {
3726 if (!stli_brds
[i
]) {
3727 if (i
>= stli_nrbrds
)
3728 stli_nrbrds
= i
+ 1;
3735 #if STLI_EISAPROBE != 0
3736 /*****************************************************************************/
3739 * Probe around and try to find any EISA boards in system. The biggest
3740 * problem here is finding out what memory address is associated with
3741 * an EISA board after it is found. The registers of the ECPE and
3742 * ONboardE are not readable - so we can't read them from there. We
3743 * don't have access to the EISA CMOS (or EISA BIOS) so we don't
3744 * actually have any way to find out the real value. The best we can
3745 * do is go probing around in the usual places hoping we can find it.
3748 static int stli_findeisabrds(void)
3750 struct stlibrd
*brdp
;
3751 unsigned int iobase
, eid
, i
;
3752 int brdnr
, found
= 0;
3755 * Firstly check if this is an EISA system. If this is not an EISA system then
3756 * don't bother going any further!
3762 * Looks like an EISA system, so go searching for EISA boards.
3764 for (iobase
= 0x1000; (iobase
<= 0xc000); iobase
+= 0x1000) {
3765 outb(0xff, (iobase
+ 0xc80));
3766 eid
= inb(iobase
+ 0xc80);
3767 eid
|= inb(iobase
+ 0xc81) << 8;
3768 if (eid
!= STL_EISAID
)
3772 * We have found a board. Need to check if this board was
3773 * statically configured already (just in case!).
3775 for (i
= 0; (i
< STL_MAXBRDS
); i
++) {
3776 brdp
= stli_brds
[i
];
3779 if (brdp
->iobase
== iobase
)
3782 if (i
< STL_MAXBRDS
)
3786 * We have found a Stallion board and it is not configured already.
3787 * Allocate a board structure and initialize it.
3789 if ((brdp
= stli_allocbrd()) == NULL
)
3790 return found
? : -ENOMEM
;
3791 brdnr
= stli_getbrdnr();
3793 return found
? : -ENOMEM
;
3794 brdp
->brdnr
= (unsigned int)brdnr
;
3795 eid
= inb(iobase
+ 0xc82);
3796 if (eid
== ECP_EISAID
)
3797 brdp
->brdtype
= BRD_ECPE
;
3798 else if (eid
== ONB_EISAID
)
3799 brdp
->brdtype
= BRD_ONBOARDE
;
3801 brdp
->brdtype
= BRD_UNKNOWN
;
3802 brdp
->iobase
= iobase
;
3803 outb(0x1, (iobase
+ 0xc84));
3804 if (stli_eisamemprobe(brdp
))
3805 outb(0, (iobase
+ 0xc84));
3806 if (stli_brdinit(brdp
) < 0) {
3811 stli_brds
[brdp
->brdnr
] = brdp
;
3814 for (i
= 0; i
< brdp
->nrports
; i
++)
3815 tty_register_device(stli_serial
,
3816 brdp
->brdnr
* STL_MAXPORTS
+ i
, NULL
);
3822 static inline int stli_findeisabrds(void) { return 0; }
3825 /*****************************************************************************/
3828 * Find the next available board number that is free.
3831 /*****************************************************************************/
3834 * We have a Stallion board. Allocate a board structure and
3835 * initialize it. Read its IO and MEMORY resources from PCI
3836 * configuration space.
3839 static int __devinit
stli_pciprobe(struct pci_dev
*pdev
,
3840 const struct pci_device_id
*ent
)
3842 struct stlibrd
*brdp
;
3844 int brdnr
, retval
= -EIO
;
3846 retval
= pci_enable_device(pdev
);
3849 brdp
= stli_allocbrd();
3854 mutex_lock(&stli_brdslock
);
3855 brdnr
= stli_getbrdnr();
3857 printk(KERN_INFO
"STALLION: too many boards found, "
3858 "maximum supported %d\n", STL_MAXBRDS
);
3859 mutex_unlock(&stli_brdslock
);
3863 brdp
->brdnr
= (unsigned int)brdnr
;
3864 stli_brds
[brdp
->brdnr
] = brdp
;
3865 mutex_unlock(&stli_brdslock
);
3866 brdp
->brdtype
= BRD_ECPPCI
;
3868 * We have all resources from the board, so lets setup the actual
3869 * board structure now.
3871 brdp
->iobase
= pci_resource_start(pdev
, 3);
3872 brdp
->memaddr
= pci_resource_start(pdev
, 2);
3873 retval
= stli_brdinit(brdp
);
3877 brdp
->state
|= BST_PROBED
;
3878 pci_set_drvdata(pdev
, brdp
);
3881 brdp
->enable
= NULL
;
3882 brdp
->disable
= NULL
;
3884 for (i
= 0; i
< brdp
->nrports
; i
++)
3885 tty_register_device(stli_serial
, brdp
->brdnr
* STL_MAXPORTS
+ i
,
3890 stli_brds
[brdp
->brdnr
] = NULL
;
3897 static void stli_pciremove(struct pci_dev
*pdev
)
3899 struct stlibrd
*brdp
= pci_get_drvdata(pdev
);
3901 stli_cleanup_ports(brdp
);
3903 iounmap(brdp
->membase
);
3904 if (brdp
->iosize
> 0)
3905 release_region(brdp
->iobase
, brdp
->iosize
);
3907 stli_brds
[brdp
->brdnr
] = NULL
;
3911 static struct pci_driver stli_pcidriver
= {
3912 .name
= "istallion",
3913 .id_table
= istallion_pci_tbl
,
3914 .probe
= stli_pciprobe
,
3915 .remove
= __devexit_p(stli_pciremove
)
3917 /*****************************************************************************/
3920 * Allocate a new board structure. Fill out the basic info in it.
3923 static struct stlibrd
*stli_allocbrd(void)
3925 struct stlibrd
*brdp
;
3927 brdp
= kzalloc(sizeof(struct stlibrd
), GFP_KERNEL
);
3929 printk(KERN_ERR
"STALLION: failed to allocate memory "
3930 "(size=%Zd)\n", sizeof(struct stlibrd
));
3933 brdp
->magic
= STLI_BOARDMAGIC
;
3937 /*****************************************************************************/
3940 * Scan through all the boards in the configuration and see what we
3944 static int stli_initbrds(void)
3946 struct stlibrd
*brdp
, *nxtbrdp
;
3947 struct stlconf conf
;
3948 unsigned int i
, j
, found
= 0;
3951 for (stli_nrbrds
= 0; stli_nrbrds
< ARRAY_SIZE(stli_brdsp
);
3953 memset(&conf
, 0, sizeof(conf
));
3954 if (stli_parsebrd(&conf
, stli_brdsp
[stli_nrbrds
]) == 0)
3956 if ((brdp
= stli_allocbrd()) == NULL
)
3958 brdp
->brdnr
= stli_nrbrds
;
3959 brdp
->brdtype
= conf
.brdtype
;
3960 brdp
->iobase
= conf
.ioaddr1
;
3961 brdp
->memaddr
= conf
.memaddr
;
3962 if (stli_brdinit(brdp
) < 0) {
3966 stli_brds
[brdp
->brdnr
] = brdp
;
3969 for (i
= 0; i
< brdp
->nrports
; i
++)
3970 tty_register_device(stli_serial
,
3971 brdp
->brdnr
* STL_MAXPORTS
+ i
, NULL
);
3974 retval
= stli_findeisabrds();
3979 * All found boards are initialized. Now for a little optimization, if
3980 * no boards are sharing the "shared memory" regions then we can just
3981 * leave them all enabled. This is in fact the usual case.
3984 if (stli_nrbrds
> 1) {
3985 for (i
= 0; (i
< stli_nrbrds
); i
++) {
3986 brdp
= stli_brds
[i
];
3989 for (j
= i
+ 1; (j
< stli_nrbrds
); j
++) {
3990 nxtbrdp
= stli_brds
[j
];
3991 if (nxtbrdp
== NULL
)
3993 if ((brdp
->membase
>= nxtbrdp
->membase
) &&
3994 (brdp
->membase
<= (nxtbrdp
->membase
+
3995 nxtbrdp
->memsize
- 1))) {
4003 if (stli_shared
== 0) {
4004 for (i
= 0; (i
< stli_nrbrds
); i
++) {
4005 brdp
= stli_brds
[i
];
4008 if (brdp
->state
& BST_FOUND
) {
4010 brdp
->enable
= NULL
;
4011 brdp
->disable
= NULL
;
4016 retval
= pci_register_driver(&stli_pcidriver
);
4017 if (retval
&& found
== 0) {
4018 printk(KERN_ERR
"Neither isa nor eisa cards found nor pci "
4019 "driver can be registered!\n");
4028 /*****************************************************************************/
4031 * Code to handle an "staliomem" read operation. This device is the
4032 * contents of the board shared memory. It is used for down loading
4033 * the slave image (and debugging :-)
4036 static ssize_t
stli_memread(struct file
*fp
, char __user
*buf
, size_t count
, loff_t
*offp
)
4038 unsigned long flags
;
4039 void __iomem
*memptr
;
4040 struct stlibrd
*brdp
;
4046 brdnr
= iminor(fp
->f_path
.dentry
->d_inode
);
4047 if (brdnr
>= stli_nrbrds
)
4049 brdp
= stli_brds
[brdnr
];
4052 if (brdp
->state
== 0)
4054 if (off
>= brdp
->memsize
|| off
+ count
< off
)
4057 size
= min(count
, (size_t)(brdp
->memsize
- off
));
4060 * Copy the data a page at a time
4063 p
= (void *)__get_free_page(GFP_KERNEL
);
4068 spin_lock_irqsave(&brd_lock
, flags
);
4070 memptr
= EBRDGETMEMPTR(brdp
, off
);
4071 n
= min(size
, (int)(brdp
->pagesize
- (((unsigned long) off
) % brdp
->pagesize
)));
4072 n
= min(n
, (int)PAGE_SIZE
);
4073 memcpy_fromio(p
, memptr
, n
);
4075 spin_unlock_irqrestore(&brd_lock
, flags
);
4076 if (copy_to_user(buf
, p
, n
)) {
4086 free_page((unsigned long)p
);
4090 /*****************************************************************************/
4093 * Code to handle an "staliomem" write operation. This device is the
4094 * contents of the board shared memory. It is used for down loading
4095 * the slave image (and debugging :-)
4097 * FIXME: copy under lock
4100 static ssize_t
stli_memwrite(struct file
*fp
, const char __user
*buf
, size_t count
, loff_t
*offp
)
4102 unsigned long flags
;
4103 void __iomem
*memptr
;
4104 struct stlibrd
*brdp
;
4111 brdnr
= iminor(fp
->f_path
.dentry
->d_inode
);
4113 if (brdnr
>= stli_nrbrds
)
4115 brdp
= stli_brds
[brdnr
];
4118 if (brdp
->state
== 0)
4120 if (off
>= brdp
->memsize
|| off
+ count
< off
)
4123 chbuf
= (char __user
*) buf
;
4124 size
= min(count
, (size_t)(brdp
->memsize
- off
));
4127 * Copy the data a page at a time
4130 p
= (void *)__get_free_page(GFP_KERNEL
);
4135 n
= min(size
, (int)(brdp
->pagesize
- (((unsigned long) off
) % brdp
->pagesize
)));
4136 n
= min(n
, (int)PAGE_SIZE
);
4137 if (copy_from_user(p
, chbuf
, n
)) {
4142 spin_lock_irqsave(&brd_lock
, flags
);
4144 memptr
= EBRDGETMEMPTR(brdp
, off
);
4145 memcpy_toio(memptr
, p
, n
);
4147 spin_unlock_irqrestore(&brd_lock
, flags
);
4153 free_page((unsigned long) p
);
4158 /*****************************************************************************/
4161 * Return the board stats structure to user app.
4164 static int stli_getbrdstats(combrd_t __user
*bp
)
4166 struct stlibrd
*brdp
;
4169 if (copy_from_user(&stli_brdstats
, bp
, sizeof(combrd_t
)))
4171 if (stli_brdstats
.brd
>= STL_MAXBRDS
)
4173 brdp
= stli_brds
[stli_brdstats
.brd
];
4177 memset(&stli_brdstats
, 0, sizeof(combrd_t
));
4178 stli_brdstats
.brd
= brdp
->brdnr
;
4179 stli_brdstats
.type
= brdp
->brdtype
;
4180 stli_brdstats
.hwid
= 0;
4181 stli_brdstats
.state
= brdp
->state
;
4182 stli_brdstats
.ioaddr
= brdp
->iobase
;
4183 stli_brdstats
.memaddr
= brdp
->memaddr
;
4184 stli_brdstats
.nrpanels
= brdp
->nrpanels
;
4185 stli_brdstats
.nrports
= brdp
->nrports
;
4186 for (i
= 0; (i
< brdp
->nrpanels
); i
++) {
4187 stli_brdstats
.panels
[i
].panel
= i
;
4188 stli_brdstats
.panels
[i
].hwid
= brdp
->panelids
[i
];
4189 stli_brdstats
.panels
[i
].nrports
= brdp
->panels
[i
];
4192 if (copy_to_user(bp
, &stli_brdstats
, sizeof(combrd_t
)))
4197 /*****************************************************************************/
4200 * Resolve the referenced port number into a port struct pointer.
4203 static struct stliport
*stli_getport(unsigned int brdnr
, unsigned int panelnr
,
4204 unsigned int portnr
)
4206 struct stlibrd
*brdp
;
4209 if (brdnr
>= STL_MAXBRDS
)
4211 brdp
= stli_brds
[brdnr
];
4214 for (i
= 0; (i
< panelnr
); i
++)
4215 portnr
+= brdp
->panels
[i
];
4216 if (portnr
>= brdp
->nrports
)
4218 return brdp
->ports
[portnr
];
4221 /*****************************************************************************/
4224 * Return the port stats structure to user app. A NULL port struct
4225 * pointer passed in means that we need to find out from the app
4226 * what port to get stats for (used through board control device).
4229 static int stli_portcmdstats(struct tty_struct
*tty
, struct stliport
*portp
)
4231 unsigned long flags
;
4232 struct stlibrd
*brdp
;
4235 memset(&stli_comstats
, 0, sizeof(comstats_t
));
4239 brdp
= stli_brds
[portp
->brdnr
];
4243 if (brdp
->state
& BST_STARTED
) {
4244 if ((rc
= stli_cmdwait(brdp
, portp
, A_GETSTATS
,
4245 &stli_cdkstats
, sizeof(asystats_t
), 1)) < 0)
4248 memset(&stli_cdkstats
, 0, sizeof(asystats_t
));
4251 stli_comstats
.brd
= portp
->brdnr
;
4252 stli_comstats
.panel
= portp
->panelnr
;
4253 stli_comstats
.port
= portp
->portnr
;
4254 stli_comstats
.state
= portp
->state
;
4255 stli_comstats
.flags
= portp
->port
.flags
;
4257 spin_lock_irqsave(&brd_lock
, flags
);
4259 if (portp
->port
.tty
== tty
) {
4260 stli_comstats
.ttystate
= tty
->flags
;
4261 stli_comstats
.rxbuffered
= -1;
4262 if (tty
->termios
!= NULL
) {
4263 stli_comstats
.cflags
= tty
->termios
->c_cflag
;
4264 stli_comstats
.iflags
= tty
->termios
->c_iflag
;
4265 stli_comstats
.oflags
= tty
->termios
->c_oflag
;
4266 stli_comstats
.lflags
= tty
->termios
->c_lflag
;
4270 spin_unlock_irqrestore(&brd_lock
, flags
);
4272 stli_comstats
.txtotal
= stli_cdkstats
.txchars
;
4273 stli_comstats
.rxtotal
= stli_cdkstats
.rxchars
+ stli_cdkstats
.ringover
;
4274 stli_comstats
.txbuffered
= stli_cdkstats
.txringq
;
4275 stli_comstats
.rxbuffered
+= stli_cdkstats
.rxringq
;
4276 stli_comstats
.rxoverrun
= stli_cdkstats
.overruns
;
4277 stli_comstats
.rxparity
= stli_cdkstats
.parity
;
4278 stli_comstats
.rxframing
= stli_cdkstats
.framing
;
4279 stli_comstats
.rxlost
= stli_cdkstats
.ringover
;
4280 stli_comstats
.rxbreaks
= stli_cdkstats
.rxbreaks
;
4281 stli_comstats
.txbreaks
= stli_cdkstats
.txbreaks
;
4282 stli_comstats
.txxon
= stli_cdkstats
.txstart
;
4283 stli_comstats
.txxoff
= stli_cdkstats
.txstop
;
4284 stli_comstats
.rxxon
= stli_cdkstats
.rxstart
;
4285 stli_comstats
.rxxoff
= stli_cdkstats
.rxstop
;
4286 stli_comstats
.rxrtsoff
= stli_cdkstats
.rtscnt
/ 2;
4287 stli_comstats
.rxrtson
= stli_cdkstats
.rtscnt
- stli_comstats
.rxrtsoff
;
4288 stli_comstats
.modem
= stli_cdkstats
.dcdcnt
;
4289 stli_comstats
.hwid
= stli_cdkstats
.hwid
;
4290 stli_comstats
.signals
= stli_mktiocm(stli_cdkstats
.signals
);
4295 /*****************************************************************************/
4298 * Return the port stats structure to user app. A NULL port struct
4299 * pointer passed in means that we need to find out from the app
4300 * what port to get stats for (used through board control device).
4303 static int stli_getportstats(struct tty_struct
*tty
, struct stliport
*portp
,
4304 comstats_t __user
*cp
)
4306 struct stlibrd
*brdp
;
4310 if (copy_from_user(&stli_comstats
, cp
, sizeof(comstats_t
)))
4312 portp
= stli_getport(stli_comstats
.brd
, stli_comstats
.panel
,
4313 stli_comstats
.port
);
4318 brdp
= stli_brds
[portp
->brdnr
];
4322 if ((rc
= stli_portcmdstats(tty
, portp
)) < 0)
4325 return copy_to_user(cp
, &stli_comstats
, sizeof(comstats_t
)) ?
4329 /*****************************************************************************/
4332 * Clear the port stats structure. We also return it zeroed out...
4335 static int stli_clrportstats(struct stliport
*portp
, comstats_t __user
*cp
)
4337 struct stlibrd
*brdp
;
4341 if (copy_from_user(&stli_comstats
, cp
, sizeof(comstats_t
)))
4343 portp
= stli_getport(stli_comstats
.brd
, stli_comstats
.panel
,
4344 stli_comstats
.port
);
4349 brdp
= stli_brds
[portp
->brdnr
];
4353 if (brdp
->state
& BST_STARTED
) {
4354 if ((rc
= stli_cmdwait(brdp
, portp
, A_CLEARSTATS
, NULL
, 0, 0)) < 0)
4358 memset(&stli_comstats
, 0, sizeof(comstats_t
));
4359 stli_comstats
.brd
= portp
->brdnr
;
4360 stli_comstats
.panel
= portp
->panelnr
;
4361 stli_comstats
.port
= portp
->portnr
;
4363 if (copy_to_user(cp
, &stli_comstats
, sizeof(comstats_t
)))
4368 /*****************************************************************************/
4371 * Return the entire driver ports structure to a user app.
4374 static int stli_getportstruct(struct stliport __user
*arg
)
4376 struct stliport stli_dummyport
;
4377 struct stliport
*portp
;
4379 if (copy_from_user(&stli_dummyport
, arg
, sizeof(struct stliport
)))
4381 portp
= stli_getport(stli_dummyport
.brdnr
, stli_dummyport
.panelnr
,
4382 stli_dummyport
.portnr
);
4385 if (copy_to_user(arg
, portp
, sizeof(struct stliport
)))
4390 /*****************************************************************************/
4393 * Return the entire driver board structure to a user app.
4396 static int stli_getbrdstruct(struct stlibrd __user
*arg
)
4398 struct stlibrd stli_dummybrd
;
4399 struct stlibrd
*brdp
;
4401 if (copy_from_user(&stli_dummybrd
, arg
, sizeof(struct stlibrd
)))
4403 if (stli_dummybrd
.brdnr
>= STL_MAXBRDS
)
4405 brdp
= stli_brds
[stli_dummybrd
.brdnr
];
4408 if (copy_to_user(arg
, brdp
, sizeof(struct stlibrd
)))
4413 /*****************************************************************************/
4416 * The "staliomem" device is also required to do some special operations on
4417 * the board. We need to be able to send an interrupt to the board,
4418 * reset it, and start/stop it.
4421 static int stli_memioctl(struct inode
*ip
, struct file
*fp
, unsigned int cmd
, unsigned long arg
)
4423 struct stlibrd
*brdp
;
4424 int brdnr
, rc
, done
;
4425 void __user
*argp
= (void __user
*)arg
;
4428 * First up handle the board independent ioctls.
4436 case COM_GETPORTSTATS
:
4437 rc
= stli_getportstats(NULL
, NULL
, argp
);
4440 case COM_CLRPORTSTATS
:
4441 rc
= stli_clrportstats(NULL
, argp
);
4444 case COM_GETBRDSTATS
:
4445 rc
= stli_getbrdstats(argp
);
4449 rc
= stli_getportstruct(argp
);
4453 rc
= stli_getbrdstruct(argp
);
4463 * Now handle the board specific ioctls. These all depend on the
4464 * minor number of the device they were called from.
4467 if (brdnr
>= STL_MAXBRDS
)
4469 brdp
= stli_brds
[brdnr
];
4472 if (brdp
->state
== 0)
4482 rc
= stli_startbrd(brdp
);
4485 brdp
->state
&= ~BST_STARTED
;
4488 brdp
->state
&= ~BST_STARTED
;
4490 if (stli_shared
== 0) {
4491 if (brdp
->reenable
!= NULL
)
4492 (* brdp
->reenable
)(brdp
);
4503 static const struct tty_operations stli_ops
= {
4505 .close
= stli_close
,
4506 .write
= stli_write
,
4507 .put_char
= stli_putchar
,
4508 .flush_chars
= stli_flushchars
,
4509 .write_room
= stli_writeroom
,
4510 .chars_in_buffer
= stli_charsinbuffer
,
4511 .ioctl
= stli_ioctl
,
4512 .set_termios
= stli_settermios
,
4513 .throttle
= stli_throttle
,
4514 .unthrottle
= stli_unthrottle
,
4516 .start
= stli_start
,
4517 .hangup
= stli_hangup
,
4518 .flush_buffer
= stli_flushbuffer
,
4519 .break_ctl
= stli_breakctl
,
4520 .wait_until_sent
= stli_waituntilsent
,
4521 .send_xchar
= stli_sendxchar
,
4522 .read_proc
= stli_readproc
,
4523 .tiocmget
= stli_tiocmget
,
4524 .tiocmset
= stli_tiocmset
,
4527 /*****************************************************************************/
4529 * Loadable module initialization stuff.
4532 static void istallion_cleanup_isa(void)
4534 struct stlibrd
*brdp
;
4537 for (j
= 0; (j
< stli_nrbrds
); j
++) {
4538 if ((brdp
= stli_brds
[j
]) == NULL
|| (brdp
->state
& BST_PROBED
))
4541 stli_cleanup_ports(brdp
);
4543 iounmap(brdp
->membase
);
4544 if (brdp
->iosize
> 0)
4545 release_region(brdp
->iobase
, brdp
->iosize
);
4547 stli_brds
[j
] = NULL
;
4551 static int __init
istallion_module_init(void)
4556 printk(KERN_INFO
"%s: version %s\n", stli_drvtitle
, stli_drvversion
);
4558 spin_lock_init(&stli_lock
);
4559 spin_lock_init(&brd_lock
);
4561 stli_txcookbuf
= kmalloc(STLI_TXBUFSIZE
, GFP_KERNEL
);
4562 if (!stli_txcookbuf
) {
4563 printk(KERN_ERR
"STALLION: failed to allocate memory "
4564 "(size=%d)\n", STLI_TXBUFSIZE
);
4569 stli_serial
= alloc_tty_driver(STL_MAXBRDS
* STL_MAXPORTS
);
4575 stli_serial
->owner
= THIS_MODULE
;
4576 stli_serial
->driver_name
= stli_drvname
;
4577 stli_serial
->name
= stli_serialname
;
4578 stli_serial
->major
= STL_SERIALMAJOR
;
4579 stli_serial
->minor_start
= 0;
4580 stli_serial
->type
= TTY_DRIVER_TYPE_SERIAL
;
4581 stli_serial
->subtype
= SERIAL_TYPE_NORMAL
;
4582 stli_serial
->init_termios
= stli_deftermios
;
4583 stli_serial
->flags
= TTY_DRIVER_REAL_RAW
| TTY_DRIVER_DYNAMIC_DEV
;
4584 tty_set_operations(stli_serial
, &stli_ops
);
4586 retval
= tty_register_driver(stli_serial
);
4588 printk(KERN_ERR
"STALLION: failed to register serial driver\n");
4592 retval
= stli_initbrds();
4597 * Set up a character driver for the shared memory region. We need this
4598 * to down load the slave code image. Also it is a useful debugging tool.
4600 retval
= register_chrdev(STL_SIOMEMMAJOR
, "staliomem", &stli_fsiomem
);
4602 printk(KERN_ERR
"STALLION: failed to register serial memory "
4607 istallion_class
= class_create(THIS_MODULE
, "staliomem");
4608 for (i
= 0; i
< 4; i
++)
4609 device_create_drvdata(istallion_class
, NULL
,
4610 MKDEV(STL_SIOMEMMAJOR
, i
),
4611 NULL
, "staliomem%d", i
);
4615 pci_unregister_driver(&stli_pcidriver
);
4616 istallion_cleanup_isa();
4618 tty_unregister_driver(stli_serial
);
4620 put_tty_driver(stli_serial
);
4622 kfree(stli_txcookbuf
);
4627 /*****************************************************************************/
4629 static void __exit
istallion_module_exit(void)
4633 printk(KERN_INFO
"Unloading %s: version %s\n", stli_drvtitle
,
4638 del_timer_sync(&stli_timerlist
);
4641 unregister_chrdev(STL_SIOMEMMAJOR
, "staliomem");
4643 for (j
= 0; j
< 4; j
++)
4644 device_destroy(istallion_class
, MKDEV(STL_SIOMEMMAJOR
, j
));
4645 class_destroy(istallion_class
);
4647 pci_unregister_driver(&stli_pcidriver
);
4648 istallion_cleanup_isa();
4650 tty_unregister_driver(stli_serial
);
4651 put_tty_driver(stli_serial
);
4653 kfree(stli_txcookbuf
);
4656 module_init(istallion_module_init
);
4657 module_exit(istallion_module_exit
);