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.
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
27 /*****************************************************************************/
29 #include <linux/config.h>
30 #include <linux/module.h>
31 #include <linux/slab.h>
32 #include <linux/interrupt.h>
33 #include <linux/tty.h>
34 #include <linux/tty_flip.h>
35 #include <linux/serial.h>
36 #include <linux/cdk.h>
37 #include <linux/comstats.h>
38 #include <linux/istallion.h>
39 #include <linux/ioport.h>
40 #include <linux/delay.h>
41 #include <linux/init.h>
42 #include <linux/devfs_fs_kernel.h>
43 #include <linux/device.h>
44 #include <linux/wait.h>
47 #include <asm/uaccess.h>
50 #include <linux/pci.h>
53 /*****************************************************************************/
56 * Define different board types. Not all of the following board types
57 * are supported by this driver. But I will use the standard "assigned"
58 * board numbers. Currently supported boards are abbreviated as:
59 * ECP = EasyConnection 8/64, ONB = ONboard, BBY = Brumby and
63 #define BRD_STALLION 1
65 #define BRD_ONBOARD2 3
68 #define BRD_BRUMBY16 6
69 #define BRD_ONBOARDE 7
70 #define BRD_ONBOARD32 9
71 #define BRD_ONBOARD2_32 10
72 #define BRD_ONBOARDRS 11
80 #define BRD_ECH64PCI 27
81 #define BRD_EASYIOPCI 28
84 #define BRD_BRUMBY BRD_BRUMBY4
87 * Define a configuration structure to hold the board configuration.
88 * Need to set this up in the code (for now) with the boards that are
89 * to be configured into the system. This is what needs to be modified
90 * when adding/removing/modifying boards. Each line entry in the
91 * stli_brdconf[] array is a board. Each line contains io/irq/memory
92 * ranges for that board (as well as what type of board it is).
94 * { BRD_ECP, 0x2a0, 0, 0xcc000, 0, 0 },
95 * This line will configure an EasyConnection 8/64 at io address 2a0,
96 * and shared memory address of cc000. Multiple EasyConnection 8/64
97 * boards can share the same shared memory address space. No interrupt
98 * is required for this board type.
100 * { BRD_ECPE, 0x5000, 0, 0x80000000, 0, 0 },
101 * This line will configure an EasyConnection 8/64 EISA in slot 5 and
102 * shared memory address of 0x80000000 (2 GByte). Multiple
103 * EasyConnection 8/64 EISA boards can share the same shared memory
104 * address space. No interrupt is required for this board type.
106 * { BRD_ONBOARD, 0x240, 0, 0xd0000, 0, 0 },
107 * This line will configure an ONboard (ISA type) at io address 240,
108 * and shared memory address of d0000. Multiple ONboards can share
109 * the same shared memory address space. No interrupt required.
111 * { BRD_BRUMBY4, 0x360, 0, 0xc8000, 0, 0 },
112 * This line will configure a Brumby board (any number of ports!) at
113 * io address 360 and shared memory address of c8000. All Brumby boards
114 * configured into a system must have their own separate io and memory
115 * addresses. No interrupt is required.
117 * { BRD_STALLION, 0x330, 0, 0xd0000, 0, 0 },
118 * This line will configure an original Stallion board at io address 330
119 * and shared memory address d0000 (this would only be valid for a "V4.0"
120 * or Rev.O Stallion board). All Stallion boards configured into the
121 * system must have their own separate io and memory addresses. No
122 * interrupt is required.
129 unsigned long memaddr;
134 static stlconf_t stli_brdconf[] = {
135 /*{ BRD_ECP, 0x2a0, 0, 0xcc000, 0, 0 },*/
138 static int stli_nrbrds = ARRAY_SIZE(stli_brdconf);
141 * There is some experimental EISA board detection code in this driver.
142 * By default it is disabled, but for those that want to try it out,
143 * then set the define below to be 1.
145 #define STLI_EISAPROBE 0
147 /*****************************************************************************/
150 * Define some important driver characteristics. Device major numbers
151 * allocated as per Linux Device Registry.
153 #ifndef STL_SIOMEMMAJOR
154 #define STL_SIOMEMMAJOR 28
156 #ifndef STL_SERIALMAJOR
157 #define STL_SERIALMAJOR 24
159 #ifndef STL_CALLOUTMAJOR
160 #define STL_CALLOUTMAJOR 25
163 /*****************************************************************************/
166 * Define our local driver identity first. Set up stuff to deal with
167 * all the local structures required by a serial tty driver.
169 static char *stli_drvtitle = "Stallion Intelligent Multiport Serial Driver";
170 static char *stli_drvname = "istallion";
171 static char *stli_drvversion = "5.6.0";
172 static char *stli_serialname = "ttyE";
174 static struct tty_driver *stli_serial;
177 * We will need to allocate a temporary write buffer for chars that
178 * come direct from user space. The problem is that a copy from user
179 * space might cause a page fault (typically on a system that is
180 * swapping!). All ports will share one buffer - since if the system
181 * is already swapping a shared buffer won't make things any worse.
183 static char *stli_tmpwritebuf;
185 #define STLI_TXBUFSIZE 4096
188 * Use a fast local buffer for cooked characters. Typically a whole
189 * bunch of cooked characters come in for a port, 1 at a time. So we
190 * save those up into a local buffer, then write out the whole lot
191 * with a large memcpy. Just use 1 buffer for all ports, since its
192 * use it is only need for short periods of time by each port.
194 static char *stli_txcookbuf;
195 static int stli_txcooksize;
196 static int stli_txcookrealsize;
197 static struct tty_struct *stli_txcooktty;
200 * Define a local default termios struct. All ports will be created
201 * with this termios initially. Basically all it defines is a raw port
202 * at 9600 baud, 8 data bits, no parity, 1 stop bit.
204 static struct termios stli_deftermios = {
205 .c_cflag = (B9600 | CS8 | CREAD | HUPCL | CLOCAL),
210 * Define global stats structures. Not used often, and can be
211 * re-used for each stats call.
213 static comstats_t stli_comstats;
214 static combrd_t stli_brdstats;
215 static asystats_t stli_cdkstats;
216 static stlibrd_t stli_dummybrd;
217 static stliport_t stli_dummyport;
219 /*****************************************************************************/
221 static stlibrd_t *stli_brds[STL_MAXBRDS];
223 static int stli_shared;
226 * Per board state flags. Used with the state field of the board struct.
227 * Not really much here... All we need to do is keep track of whether
228 * the board has been detected, and whether it is actually running a slave
231 #define BST_FOUND 0x1
232 #define BST_STARTED 0x2
235 * Define the set of port state flags. These are marked for internal
236 * state purposes only, usually to do with the state of communications
237 * with the slave. Most of them need to be updated atomically, so always
238 * use the bit setting operations (unless protected by cli/sti).
240 #define ST_INITIALIZING 1
246 #define ST_DOFLUSHRX 7
247 #define ST_DOFLUSHTX 8
250 #define ST_GETSIGS 11
253 * Define an array of board names as printable strings. Handy for
254 * referencing boards when printing trace and stuff.
256 static char *stli_brdnames[] = {
289 /*****************************************************************************/
293 * Define some string labels for arguments passed from the module
294 * load line. These allow for easy board definitions, and easy
295 * modification of the io, memory and irq resoucres.
298 static char *board0[8];
299 static char *board1[8];
300 static char *board2[8];
301 static char *board3[8];
303 static char **stli_brdsp[] = {
311 * Define a set of common board names, and types. This is used to
312 * parse any module arguments.
315 typedef struct stlibrdtype {
320 static stlibrdtype_t stli_brdstr[] = {
321 { "stallion", BRD_STALLION },
322 { "1", BRD_STALLION },
323 { "brumby", BRD_BRUMBY },
324 { "brumby4", BRD_BRUMBY },
325 { "brumby/4", BRD_BRUMBY },
326 { "brumby-4", BRD_BRUMBY },
327 { "brumby8", BRD_BRUMBY },
328 { "brumby/8", BRD_BRUMBY },
329 { "brumby-8", BRD_BRUMBY },
330 { "brumby16", BRD_BRUMBY },
331 { "brumby/16", BRD_BRUMBY },
332 { "brumby-16", BRD_BRUMBY },
334 { "onboard2", BRD_ONBOARD2 },
335 { "onboard-2", BRD_ONBOARD2 },
336 { "onboard/2", BRD_ONBOARD2 },
337 { "onboard-mc", BRD_ONBOARD2 },
338 { "onboard/mc", BRD_ONBOARD2 },
339 { "onboard-mca", BRD_ONBOARD2 },
340 { "onboard/mca", BRD_ONBOARD2 },
341 { "3", BRD_ONBOARD2 },
342 { "onboard", BRD_ONBOARD },
343 { "onboardat", BRD_ONBOARD },
344 { "4", BRD_ONBOARD },
345 { "onboarde", BRD_ONBOARDE },
346 { "onboard-e", BRD_ONBOARDE },
347 { "onboard/e", BRD_ONBOARDE },
348 { "onboard-ei", BRD_ONBOARDE },
349 { "onboard/ei", BRD_ONBOARDE },
350 { "7", BRD_ONBOARDE },
352 { "ecpat", BRD_ECP },
353 { "ec8/64", BRD_ECP },
354 { "ec8/64-at", BRD_ECP },
355 { "ec8/64-isa", BRD_ECP },
357 { "ecpe", BRD_ECPE },
358 { "ecpei", BRD_ECPE },
359 { "ec8/64-e", BRD_ECPE },
360 { "ec8/64-ei", BRD_ECPE },
362 { "ecpmc", BRD_ECPMC },
363 { "ec8/64-mc", BRD_ECPMC },
364 { "ec8/64-mca", BRD_ECPMC },
366 { "ecppci", BRD_ECPPCI },
367 { "ec/ra", BRD_ECPPCI },
368 { "ec/ra-pc", BRD_ECPPCI },
369 { "ec/ra-pci", BRD_ECPPCI },
370 { "29", BRD_ECPPCI },
374 * Define the module agruments.
376 MODULE_AUTHOR("Greg Ungerer");
377 MODULE_DESCRIPTION("Stallion Intelligent Multiport Serial Driver");
378 MODULE_LICENSE("GPL");
381 module_param_array(board0, charp, NULL, 0);
382 MODULE_PARM_DESC(board0, "Board 0 config -> name[,ioaddr[,memaddr]");
383 module_param_array(board1, charp, NULL, 0);
384 MODULE_PARM_DESC(board1, "Board 1 config -> name[,ioaddr[,memaddr]");
385 module_param_array(board2, charp, NULL, 0);
386 MODULE_PARM_DESC(board2, "Board 2 config -> name[,ioaddr[,memaddr]");
387 module_param_array(board3, charp, NULL, 0);
388 MODULE_PARM_DESC(board3, "Board 3 config -> name[,ioaddr[,memaddr]");
393 * Set up a default memory address table for EISA board probing.
394 * The default addresses are all bellow 1Mbyte, which has to be the
395 * case anyway. They should be safe, since we only read values from
396 * them, and interrupts are disabled while we do it. If the higher
397 * memory support is compiled in then we also try probing around
398 * the 1Gb, 2Gb and 3Gb areas as well...
400 static unsigned long stli_eisamemprobeaddrs[] = {
401 0xc0000, 0xd0000, 0xe0000, 0xf0000,
402 0x80000000, 0x80010000, 0x80020000, 0x80030000,
403 0x40000000, 0x40010000, 0x40020000, 0x40030000,
404 0xc0000000, 0xc0010000, 0xc0020000, 0xc0030000,
405 0xff000000, 0xff010000, 0xff020000, 0xff030000,
408 static int stli_eisamempsize = ARRAY_SIZE(stli_eisamemprobeaddrs);
411 * Define the Stallion PCI vendor and device IDs.
414 #ifndef PCI_VENDOR_ID_STALLION
415 #define PCI_VENDOR_ID_STALLION 0x124d
417 #ifndef PCI_DEVICE_ID_ECRA
418 #define PCI_DEVICE_ID_ECRA 0x0004
421 static struct pci_device_id istallion_pci_tbl[] = {
422 { PCI_VENDOR_ID_STALLION, PCI_DEVICE_ID_ECRA, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
425 MODULE_DEVICE_TABLE(pci, istallion_pci_tbl);
427 #endif /* CONFIG_PCI */
429 /*****************************************************************************/
432 * Hardware configuration info for ECP boards. These defines apply
433 * to the directly accessible io ports of the ECP. There is a set of
434 * defines for each ECP board type, ISA, EISA, MCA and PCI.
438 #define ECP_MEMSIZE (128 * 1024)
439 #define ECP_PCIMEMSIZE (256 * 1024)
441 #define ECP_ATPAGESIZE (4 * 1024)
442 #define ECP_MCPAGESIZE (4 * 1024)
443 #define ECP_EIPAGESIZE (64 * 1024)
444 #define ECP_PCIPAGESIZE (64 * 1024)
446 #define STL_EISAID 0x8c4e
449 * Important defines for the ISA class of ECP board.
452 #define ECP_ATCONFR 1
453 #define ECP_ATMEMAR 2
454 #define ECP_ATMEMPR 3
455 #define ECP_ATSTOP 0x1
456 #define ECP_ATINTENAB 0x10
457 #define ECP_ATENABLE 0x20
458 #define ECP_ATDISABLE 0x00
459 #define ECP_ATADDRMASK 0x3f000
460 #define ECP_ATADDRSHFT 12
463 * Important defines for the EISA class of ECP board.
466 #define ECP_EIMEMARL 1
467 #define ECP_EICONFR 2
468 #define ECP_EIMEMARH 3
469 #define ECP_EIENABLE 0x1
470 #define ECP_EIDISABLE 0x0
471 #define ECP_EISTOP 0x4
472 #define ECP_EIEDGE 0x00
473 #define ECP_EILEVEL 0x80
474 #define ECP_EIADDRMASKL 0x00ff0000
475 #define ECP_EIADDRSHFTL 16
476 #define ECP_EIADDRMASKH 0xff000000
477 #define ECP_EIADDRSHFTH 24
478 #define ECP_EIBRDENAB 0xc84
480 #define ECP_EISAID 0x4
483 * Important defines for the Micro-channel class of ECP board.
484 * (It has a lot in common with the ISA boards.)
487 #define ECP_MCCONFR 1
488 #define ECP_MCSTOP 0x20
489 #define ECP_MCENABLE 0x80
490 #define ECP_MCDISABLE 0x00
493 * Important defines for the PCI class of ECP board.
494 * (It has a lot in common with the other ECP boards.)
496 #define ECP_PCIIREG 0
497 #define ECP_PCICONFR 1
498 #define ECP_PCISTOP 0x01
501 * Hardware configuration info for ONboard and Brumby boards. These
502 * defines apply to the directly accessible io ports of these boards.
504 #define ONB_IOSIZE 16
505 #define ONB_MEMSIZE (64 * 1024)
506 #define ONB_ATPAGESIZE (64 * 1024)
507 #define ONB_MCPAGESIZE (64 * 1024)
508 #define ONB_EIMEMSIZE (128 * 1024)
509 #define ONB_EIPAGESIZE (64 * 1024)
512 * Important defines for the ISA class of ONboard board.
515 #define ONB_ATMEMAR 1
516 #define ONB_ATCONFR 2
517 #define ONB_ATSTOP 0x4
518 #define ONB_ATENABLE 0x01
519 #define ONB_ATDISABLE 0x00
520 #define ONB_ATADDRMASK 0xff0000
521 #define ONB_ATADDRSHFT 16
523 #define ONB_MEMENABLO 0
524 #define ONB_MEMENABHI 0x02
527 * Important defines for the EISA class of ONboard board.
530 #define ONB_EIMEMARL 1
531 #define ONB_EICONFR 2
532 #define ONB_EIMEMARH 3
533 #define ONB_EIENABLE 0x1
534 #define ONB_EIDISABLE 0x0
535 #define ONB_EISTOP 0x4
536 #define ONB_EIEDGE 0x00
537 #define ONB_EILEVEL 0x80
538 #define ONB_EIADDRMASKL 0x00ff0000
539 #define ONB_EIADDRSHFTL 16
540 #define ONB_EIADDRMASKH 0xff000000
541 #define ONB_EIADDRSHFTH 24
542 #define ONB_EIBRDENAB 0xc84
544 #define ONB_EISAID 0x1
547 * Important defines for the Brumby boards. They are pretty simple,
548 * there is not much that is programmably configurable.
550 #define BBY_IOSIZE 16
551 #define BBY_MEMSIZE (64 * 1024)
552 #define BBY_PAGESIZE (16 * 1024)
555 #define BBY_ATCONFR 1
556 #define BBY_ATSTOP 0x4
559 * Important defines for the Stallion boards. They are pretty simple,
560 * there is not much that is programmably configurable.
562 #define STAL_IOSIZE 16
563 #define STAL_MEMSIZE (64 * 1024)
564 #define STAL_PAGESIZE (64 * 1024)
567 * Define the set of status register values for EasyConnection panels.
568 * The signature will return with the status value for each panel. From
569 * this we can determine what is attached to the board - before we have
570 * actually down loaded any code to it.
572 #define ECH_PNLSTATUS 2
573 #define ECH_PNL16PORT 0x20
574 #define ECH_PNLIDMASK 0x07
575 #define ECH_PNLXPID 0x40
576 #define ECH_PNLINTRPEND 0x80
579 * Define some macros to do things to the board. Even those these boards
580 * are somewhat related there is often significantly different ways of
581 * doing some operation on it (like enable, paging, reset, etc). So each
582 * board class has a set of functions which do the commonly required
583 * operations. The macros below basically just call these functions,
584 * generally checking for a NULL function - which means that the board
585 * needs nothing done to it to achieve this operation!
587 #define EBRDINIT(brdp) \
588 if (brdp->init != NULL) \
591 #define EBRDENABLE(brdp) \
592 if (brdp->enable != NULL) \
593 (* brdp->enable)(brdp);
595 #define EBRDDISABLE(brdp) \
596 if (brdp->disable != NULL) \
597 (* brdp->disable)(brdp);
599 #define EBRDINTR(brdp) \
600 if (brdp->intr != NULL) \
601 (* brdp->intr)(brdp);
603 #define EBRDRESET(brdp) \
604 if (brdp->reset != NULL) \
605 (* brdp->reset)(brdp);
607 #define EBRDGETMEMPTR(brdp,offset) \
608 (* brdp->getmemptr)(brdp, offset, __LINE__)
611 * Define the maximal baud rate, and the default baud base for ports.
613 #define STL_MAXBAUD 460800
614 #define STL_BAUDBASE 115200
615 #define STL_CLOSEDELAY (5 * HZ / 10)
617 /*****************************************************************************/
620 * Define macros to extract a brd or port number from a minor number.
622 #define MINOR2BRD(min) (((min) & 0xc0) >> 6)
623 #define MINOR2PORT(min) ((min) & 0x3f)
626 * Define a baud rate table that converts termios baud rate selector
627 * into the actual baud rate value. All baud rate calculations are based
628 * on the actual baud rate required.
630 static unsigned int stli_baudrates[] = {
631 0, 50, 75, 110, 134, 150, 200, 300, 600, 1200, 1800, 2400, 4800,
632 9600, 19200, 38400, 57600, 115200, 230400, 460800, 921600
635 /*****************************************************************************/
638 * Define some handy local macros...
641 #define MIN(a,b) (((a) <= (b)) ? (a) : (b))
644 #define TOLOWER(x) ((((x) >= 'A') && ((x) <= 'Z')) ? ((x) + 0x20) : (x))
646 /*****************************************************************************/
649 * Prototype all functions in this driver!
653 static void stli_argbrds(void);
654 static int stli_parsebrd(stlconf_t *confp, char **argp);
656 static unsigned long stli_atol(char *str);
660 static int stli_open(struct tty_struct *tty, struct file *filp);
661 static void stli_close(struct tty_struct *tty, struct file *filp);
662 static int stli_write(struct tty_struct *tty, const unsigned char *buf, int count);
663 static void stli_putchar(struct tty_struct *tty, unsigned char ch);
664 static void stli_flushchars(struct tty_struct *tty);
665 static int stli_writeroom(struct tty_struct *tty);
666 static int stli_charsinbuffer(struct tty_struct *tty);
667 static int stli_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg);
668 static void stli_settermios(struct tty_struct *tty, struct termios *old);
669 static void stli_throttle(struct tty_struct *tty);
670 static void stli_unthrottle(struct tty_struct *tty);
671 static void stli_stop(struct tty_struct *tty);
672 static void stli_start(struct tty_struct *tty);
673 static void stli_flushbuffer(struct tty_struct *tty);
674 static void stli_breakctl(struct tty_struct *tty, int state);
675 static void stli_waituntilsent(struct tty_struct *tty, int timeout);
676 static void stli_sendxchar(struct tty_struct *tty, char ch);
677 static void stli_hangup(struct tty_struct *tty);
678 static int stli_portinfo(stlibrd_t *brdp, stliport_t *portp, int portnr, char *pos);
680 static int stli_brdinit(stlibrd_t *brdp);
681 static int stli_startbrd(stlibrd_t *brdp);
682 static ssize_t stli_memread(struct file *fp, char __user *buf, size_t count, loff_t *offp);
683 static ssize_t stli_memwrite(struct file *fp, const char __user *buf, size_t count, loff_t *offp);
684 static int stli_memioctl(struct inode *ip, struct file *fp, unsigned int cmd, unsigned long arg);
685 static void stli_brdpoll(stlibrd_t *brdp, volatile cdkhdr_t *hdrp);
686 static void stli_poll(unsigned long arg);
687 static int stli_hostcmd(stlibrd_t *brdp, stliport_t *portp);
688 static int stli_initopen(stlibrd_t *brdp, stliport_t *portp);
689 static int stli_rawopen(stlibrd_t *brdp, stliport_t *portp, unsigned long arg, int wait);
690 static int stli_rawclose(stlibrd_t *brdp, stliport_t *portp, unsigned long arg, int wait);
691 static int stli_waitcarrier(stlibrd_t *brdp, stliport_t *portp, struct file *filp);
692 static void stli_dohangup(void *arg);
693 static int stli_setport(stliport_t *portp);
694 static int stli_cmdwait(stlibrd_t *brdp, stliport_t *portp, unsigned long cmd, void *arg, int size, int copyback);
695 static void stli_sendcmd(stlibrd_t *brdp, stliport_t *portp, unsigned long cmd, void *arg, int size, int copyback);
696 static void stli_dodelaycmd(stliport_t *portp, volatile cdkctrl_t *cp);
697 static void stli_mkasyport(stliport_t *portp, asyport_t *pp, struct termios *tiosp);
698 static void stli_mkasysigs(asysigs_t *sp, int dtr, int rts);
699 static long stli_mktiocm(unsigned long sigvalue);
700 static void stli_read(stlibrd_t *brdp, stliport_t *portp);
701 static int stli_getserial(stliport_t *portp, struct serial_struct __user *sp);
702 static int stli_setserial(stliport_t *portp, struct serial_struct __user *sp);
703 static int stli_getbrdstats(combrd_t __user *bp);
704 static int stli_getportstats(stliport_t *portp, comstats_t __user *cp);
705 static int stli_portcmdstats(stliport_t *portp);
706 static int stli_clrportstats(stliport_t *portp, comstats_t __user *cp);
707 static int stli_getportstruct(stliport_t __user *arg);
708 static int stli_getbrdstruct(stlibrd_t __user *arg);
709 static void *stli_memalloc(int len);
710 static stlibrd_t *stli_allocbrd(void);
712 static void stli_ecpinit(stlibrd_t *brdp);
713 static void stli_ecpenable(stlibrd_t *brdp);
714 static void stli_ecpdisable(stlibrd_t *brdp);
715 static char *stli_ecpgetmemptr(stlibrd_t *brdp, unsigned long offset, int line);
716 static void stli_ecpreset(stlibrd_t *brdp);
717 static void stli_ecpintr(stlibrd_t *brdp);
718 static void stli_ecpeiinit(stlibrd_t *brdp);
719 static void stli_ecpeienable(stlibrd_t *brdp);
720 static void stli_ecpeidisable(stlibrd_t *brdp);
721 static char *stli_ecpeigetmemptr(stlibrd_t *brdp, unsigned long offset, int line);
722 static void stli_ecpeireset(stlibrd_t *brdp);
723 static void stli_ecpmcenable(stlibrd_t *brdp);
724 static void stli_ecpmcdisable(stlibrd_t *brdp);
725 static char *stli_ecpmcgetmemptr(stlibrd_t *brdp, unsigned long offset, int line);
726 static void stli_ecpmcreset(stlibrd_t *brdp);
727 static void stli_ecppciinit(stlibrd_t *brdp);
728 static char *stli_ecppcigetmemptr(stlibrd_t *brdp, unsigned long offset, int line);
729 static void stli_ecppcireset(stlibrd_t *brdp);
731 static void stli_onbinit(stlibrd_t *brdp);
732 static void stli_onbenable(stlibrd_t *brdp);
733 static void stli_onbdisable(stlibrd_t *brdp);
734 static char *stli_onbgetmemptr(stlibrd_t *brdp, unsigned long offset, int line);
735 static void stli_onbreset(stlibrd_t *brdp);
736 static void stli_onbeinit(stlibrd_t *brdp);
737 static void stli_onbeenable(stlibrd_t *brdp);
738 static void stli_onbedisable(stlibrd_t *brdp);
739 static char *stli_onbegetmemptr(stlibrd_t *brdp, unsigned long offset, int line);
740 static void stli_onbereset(stlibrd_t *brdp);
741 static void stli_bbyinit(stlibrd_t *brdp);
742 static char *stli_bbygetmemptr(stlibrd_t *brdp, unsigned long offset, int line);
743 static void stli_bbyreset(stlibrd_t *brdp);
744 static void stli_stalinit(stlibrd_t *brdp);
745 static char *stli_stalgetmemptr(stlibrd_t *brdp, unsigned long offset, int line);
746 static void stli_stalreset(stlibrd_t *brdp);
748 static stliport_t *stli_getport(int brdnr, int panelnr, int portnr);
750 static int stli_initecp(stlibrd_t *brdp);
751 static int stli_initonb(stlibrd_t *brdp);
752 static int stli_eisamemprobe(stlibrd_t *brdp);
753 static int stli_initports(stlibrd_t *brdp);
756 static int stli_initpcibrd(int brdtype, struct pci_dev *devp);
759 /*****************************************************************************/
762 * Define the driver info for a user level shared memory device. This
763 * device will work sort of like the /dev/kmem device - except that it
764 * will give access to the shared memory on the Stallion intelligent
765 * board. This is also a very useful debugging tool.
767 static struct file_operations stli_fsiomem = {
768 .owner = THIS_MODULE,
769 .read = stli_memread,
770 .write = stli_memwrite,
771 .ioctl = stli_memioctl,
774 /*****************************************************************************/
777 * Define a timer_list entry for our poll routine. The slave board
778 * is polled every so often to see if anything needs doing. This is
779 * much cheaper on host cpu than using interrupts. It turns out to
780 * not increase character latency by much either...
782 static DEFINE_TIMER(stli_timerlist, stli_poll, 0, 0);
784 static int stli_timeron;
787 * Define the calculation for the timeout routine.
789 #define STLI_TIMEOUT (jiffies + 1)
791 /*****************************************************************************/
793 static struct class *istallion_class;
798 * Loadable module initialization stuff.
801 static int __init istallion_module_init(void)
806 printk("init_module()\n");
812 restore_flags(flags);
817 /*****************************************************************************/
819 static void __exit istallion_module_exit(void)
827 printk("cleanup_module()\n");
830 printk(KERN_INFO "Unloading %s: version %s\n", stli_drvtitle,
837 * Free up all allocated resources used by the ports. This includes
838 * memory and interrupts.
842 del_timer(&stli_timerlist);
845 i = tty_unregister_driver(stli_serial);
847 printk("STALLION: failed to un-register tty driver, "
849 restore_flags(flags);
852 put_tty_driver(stli_serial);
853 for (i = 0; i < 4; i++) {
854 devfs_remove("staliomem/%d", i);
855 class_device_destroy(istallion_class, MKDEV(STL_SIOMEMMAJOR, i));
857 devfs_remove("staliomem");
858 class_destroy(istallion_class);
859 if ((i = unregister_chrdev(STL_SIOMEMMAJOR, "staliomem")))
860 printk("STALLION: failed to un-register serial memory device, "
863 kfree(stli_tmpwritebuf);
864 kfree(stli_txcookbuf);
866 for (i = 0; (i < stli_nrbrds); i++) {
867 if ((brdp = stli_brds[i]) == (stlibrd_t *) NULL)
869 for (j = 0; (j < STL_MAXPORTS); j++) {
870 portp = brdp->ports[j];
871 if (portp != (stliport_t *) NULL) {
872 if (portp->tty != (struct tty_struct *) NULL)
873 tty_hangup(portp->tty);
878 iounmap(brdp->membase);
879 if (brdp->iosize > 0)
880 release_region(brdp->iobase, brdp->iosize);
882 stli_brds[i] = (stlibrd_t *) NULL;
885 restore_flags(flags);
888 module_init(istallion_module_init);
889 module_exit(istallion_module_exit);
891 /*****************************************************************************/
894 * Check for any arguments passed in on the module load command line.
897 static void stli_argbrds(void)
904 printk("stli_argbrds()\n");
907 for (i = stli_nrbrds; i < ARRAY_SIZE(stli_brdsp); i++) {
908 memset(&conf, 0, sizeof(conf));
909 if (stli_parsebrd(&conf, stli_brdsp[i]) == 0)
911 if ((brdp = stli_allocbrd()) == (stlibrd_t *) NULL)
915 brdp->brdtype = conf.brdtype;
916 brdp->iobase = conf.ioaddr1;
917 brdp->memaddr = conf.memaddr;
922 /*****************************************************************************/
925 * Convert an ascii string number into an unsigned long.
928 static unsigned long stli_atol(char *str)
936 if ((*sp == '0') && (*(sp+1) == 'x')) {
939 } else if (*sp == '0') {
946 for (; (*sp != 0); sp++) {
947 c = (*sp > '9') ? (TOLOWER(*sp) - 'a' + 10) : (*sp - '0');
948 if ((c < 0) || (c >= base)) {
949 printk("STALLION: invalid argument %s\n", str);
953 val = (val * base) + c;
958 /*****************************************************************************/
961 * Parse the supplied argument string, into the board conf struct.
964 static int stli_parsebrd(stlconf_t *confp, char **argp)
970 printk("stli_parsebrd(confp=%x,argp=%x)\n", (int) confp, (int) argp);
973 if ((argp[0] == (char *) NULL) || (*argp[0] == 0))
976 for (sp = argp[0], i = 0; ((*sp != 0) && (i < 25)); sp++, i++)
979 for (i = 0; i < ARRAY_SIZE(stli_brdstr); i++) {
980 if (strcmp(stli_brdstr[i].name, argp[0]) == 0)
983 if (i == ARRAY_SIZE(stli_brdstr)) {
984 printk("STALLION: unknown board name, %s?\n", argp[0]);
988 confp->brdtype = stli_brdstr[i].type;
989 if ((argp[1] != (char *) NULL) && (*argp[1] != 0))
990 confp->ioaddr1 = stli_atol(argp[1]);
991 if ((argp[2] != (char *) NULL) && (*argp[2] != 0))
992 confp->memaddr = stli_atol(argp[2]);
998 /*****************************************************************************/
1001 * Local driver kernel malloc routine.
1004 static void *stli_memalloc(int len)
1006 return((void *) kmalloc(len, GFP_KERNEL));
1009 /*****************************************************************************/
1011 static int stli_open(struct tty_struct *tty, struct file *filp)
1015 unsigned int minordev;
1016 int brdnr, portnr, rc;
1019 printk("stli_open(tty=%x,filp=%x): device=%s\n", (int) tty,
1020 (int) filp, tty->name);
1023 minordev = tty->index;
1024 brdnr = MINOR2BRD(minordev);
1025 if (brdnr >= stli_nrbrds)
1027 brdp = stli_brds[brdnr];
1028 if (brdp == (stlibrd_t *) NULL)
1030 if ((brdp->state & BST_STARTED) == 0)
1032 portnr = MINOR2PORT(minordev);
1033 if ((portnr < 0) || (portnr > brdp->nrports))
1036 portp = brdp->ports[portnr];
1037 if (portp == (stliport_t *) NULL)
1039 if (portp->devnr < 1)
1044 * Check if this port is in the middle of closing. If so then wait
1045 * until it is closed then return error status based on flag settings.
1046 * The sleep here does not need interrupt protection since the wakeup
1047 * for it is done with the same context.
1049 if (portp->flags & ASYNC_CLOSING) {
1050 interruptible_sleep_on(&portp->close_wait);
1051 if (portp->flags & ASYNC_HUP_NOTIFY)
1053 return(-ERESTARTSYS);
1057 * On the first open of the device setup the port hardware, and
1058 * initialize the per port data structure. Since initializing the port
1059 * requires several commands to the board we will need to wait for any
1060 * other open that is already initializing the port.
1063 tty->driver_data = portp;
1066 wait_event_interruptible(portp->raw_wait,
1067 !test_bit(ST_INITIALIZING, &portp->state));
1068 if (signal_pending(current))
1069 return(-ERESTARTSYS);
1071 if ((portp->flags & ASYNC_INITIALIZED) == 0) {
1072 set_bit(ST_INITIALIZING, &portp->state);
1073 if ((rc = stli_initopen(brdp, portp)) >= 0) {
1074 portp->flags |= ASYNC_INITIALIZED;
1075 clear_bit(TTY_IO_ERROR, &tty->flags);
1077 clear_bit(ST_INITIALIZING, &portp->state);
1078 wake_up_interruptible(&portp->raw_wait);
1084 * Check if this port is in the middle of closing. If so then wait
1085 * until it is closed then return error status, based on flag settings.
1086 * The sleep here does not need interrupt protection since the wakeup
1087 * for it is done with the same context.
1089 if (portp->flags & ASYNC_CLOSING) {
1090 interruptible_sleep_on(&portp->close_wait);
1091 if (portp->flags & ASYNC_HUP_NOTIFY)
1093 return(-ERESTARTSYS);
1097 * Based on type of open being done check if it can overlap with any
1098 * previous opens still in effect. If we are a normal serial device
1099 * then also we might have to wait for carrier.
1101 if (!(filp->f_flags & O_NONBLOCK)) {
1102 if ((rc = stli_waitcarrier(brdp, portp, filp)) != 0)
1105 portp->flags |= ASYNC_NORMAL_ACTIVE;
1109 /*****************************************************************************/
1111 static void stli_close(struct tty_struct *tty, struct file *filp)
1115 unsigned long flags;
1118 printk("stli_close(tty=%x,filp=%x)\n", (int) tty, (int) filp);
1121 portp = tty->driver_data;
1122 if (portp == (stliport_t *) NULL)
1127 if (tty_hung_up_p(filp)) {
1128 restore_flags(flags);
1131 if ((tty->count == 1) && (portp->refcount != 1))
1132 portp->refcount = 1;
1133 if (portp->refcount-- > 1) {
1134 restore_flags(flags);
1138 portp->flags |= ASYNC_CLOSING;
1141 * May want to wait for data to drain before closing. The BUSY flag
1142 * keeps track of whether we are still transmitting or not. It is
1143 * updated by messages from the slave - indicating when all chars
1144 * really have drained.
1146 if (tty == stli_txcooktty)
1147 stli_flushchars(tty);
1149 if (portp->closing_wait != ASYNC_CLOSING_WAIT_NONE)
1150 tty_wait_until_sent(tty, portp->closing_wait);
1152 portp->flags &= ~ASYNC_INITIALIZED;
1153 brdp = stli_brds[portp->brdnr];
1154 stli_rawclose(brdp, portp, 0, 0);
1155 if (tty->termios->c_cflag & HUPCL) {
1156 stli_mkasysigs(&portp->asig, 0, 0);
1157 if (test_bit(ST_CMDING, &portp->state))
1158 set_bit(ST_DOSIGS, &portp->state);
1160 stli_sendcmd(brdp, portp, A_SETSIGNALS, &portp->asig,
1161 sizeof(asysigs_t), 0);
1163 clear_bit(ST_TXBUSY, &portp->state);
1164 clear_bit(ST_RXSTOP, &portp->state);
1165 set_bit(TTY_IO_ERROR, &tty->flags);
1166 if (tty->ldisc.flush_buffer)
1167 (tty->ldisc.flush_buffer)(tty);
1168 set_bit(ST_DOFLUSHRX, &portp->state);
1169 stli_flushbuffer(tty);
1172 portp->tty = (struct tty_struct *) NULL;
1174 if (portp->openwaitcnt) {
1175 if (portp->close_delay)
1176 msleep_interruptible(jiffies_to_msecs(portp->close_delay));
1177 wake_up_interruptible(&portp->open_wait);
1180 portp->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
1181 wake_up_interruptible(&portp->close_wait);
1182 restore_flags(flags);
1185 /*****************************************************************************/
1188 * Carry out first open operations on a port. This involves a number of
1189 * commands to be sent to the slave. We need to open the port, set the
1190 * notification events, set the initial port settings, get and set the
1191 * initial signal values. We sleep and wait in between each one. But
1192 * this still all happens pretty quickly.
1195 static int stli_initopen(stlibrd_t *brdp, stliport_t *portp)
1197 struct tty_struct *tty;
1203 printk("stli_initopen(brdp=%x,portp=%x)\n", (int) brdp, (int) portp);
1206 if ((rc = stli_rawopen(brdp, portp, 0, 1)) < 0)
1209 memset(&nt, 0, sizeof(asynotify_t));
1210 nt.data = (DT_TXLOW | DT_TXEMPTY | DT_RXBUSY | DT_RXBREAK);
1212 if ((rc = stli_cmdwait(brdp, portp, A_SETNOTIFY, &nt,
1213 sizeof(asynotify_t), 0)) < 0)
1217 if (tty == (struct tty_struct *) NULL)
1219 stli_mkasyport(portp, &aport, tty->termios);
1220 if ((rc = stli_cmdwait(brdp, portp, A_SETPORT, &aport,
1221 sizeof(asyport_t), 0)) < 0)
1224 set_bit(ST_GETSIGS, &portp->state);
1225 if ((rc = stli_cmdwait(brdp, portp, A_GETSIGNALS, &portp->asig,
1226 sizeof(asysigs_t), 1)) < 0)
1228 if (test_and_clear_bit(ST_GETSIGS, &portp->state))
1229 portp->sigs = stli_mktiocm(portp->asig.sigvalue);
1230 stli_mkasysigs(&portp->asig, 1, 1);
1231 if ((rc = stli_cmdwait(brdp, portp, A_SETSIGNALS, &portp->asig,
1232 sizeof(asysigs_t), 0)) < 0)
1238 /*****************************************************************************/
1241 * Send an open message to the slave. This will sleep waiting for the
1242 * acknowledgement, so must have user context. We need to co-ordinate
1243 * with close events here, since we don't want open and close events
1247 static int stli_rawopen(stlibrd_t *brdp, stliport_t *portp, unsigned long arg, int wait)
1249 volatile cdkhdr_t *hdrp;
1250 volatile cdkctrl_t *cp;
1251 volatile unsigned char *bits;
1252 unsigned long flags;
1256 printk("stli_rawopen(brdp=%x,portp=%x,arg=%x,wait=%d)\n",
1257 (int) brdp, (int) portp, (int) arg, wait);
1261 * Send a message to the slave to open this port.
1267 * Slave is already closing this port. This can happen if a hangup
1268 * occurs on this port. So we must wait until it is complete. The
1269 * order of opens and closes may not be preserved across shared
1270 * memory, so we must wait until it is complete.
1272 wait_event_interruptible(portp->raw_wait,
1273 !test_bit(ST_CLOSING, &portp->state));
1274 if (signal_pending(current)) {
1275 restore_flags(flags);
1276 return -ERESTARTSYS;
1280 * Everything is ready now, so write the open message into shared
1281 * memory. Once the message is in set the service bits to say that
1282 * this port wants service.
1285 cp = &((volatile cdkasy_t *) EBRDGETMEMPTR(brdp, portp->addr))->ctrl;
1288 hdrp = (volatile cdkhdr_t *) EBRDGETMEMPTR(brdp, CDK_CDKADDR);
1289 bits = ((volatile unsigned char *) hdrp) + brdp->slaveoffset +
1291 *bits |= portp->portbit;
1295 restore_flags(flags);
1300 * Slave is in action, so now we must wait for the open acknowledgment
1304 set_bit(ST_OPENING, &portp->state);
1305 wait_event_interruptible(portp->raw_wait,
1306 !test_bit(ST_OPENING, &portp->state));
1307 if (signal_pending(current))
1309 restore_flags(flags);
1311 if ((rc == 0) && (portp->rc != 0))
1316 /*****************************************************************************/
1319 * Send a close message to the slave. Normally this will sleep waiting
1320 * for the acknowledgement, but if wait parameter is 0 it will not. If
1321 * wait is true then must have user context (to sleep).
1324 static int stli_rawclose(stlibrd_t *brdp, stliport_t *portp, unsigned long arg, int wait)
1326 volatile cdkhdr_t *hdrp;
1327 volatile cdkctrl_t *cp;
1328 volatile unsigned char *bits;
1329 unsigned long flags;
1333 printk("stli_rawclose(brdp=%x,portp=%x,arg=%x,wait=%d)\n",
1334 (int) brdp, (int) portp, (int) arg, wait);
1341 * Slave is already closing this port. This can happen if a hangup
1342 * occurs on this port.
1345 wait_event_interruptible(portp->raw_wait,
1346 !test_bit(ST_CLOSING, &portp->state));
1347 if (signal_pending(current)) {
1348 restore_flags(flags);
1349 return -ERESTARTSYS;
1354 * Write the close command into shared memory.
1357 cp = &((volatile cdkasy_t *) EBRDGETMEMPTR(brdp, portp->addr))->ctrl;
1360 hdrp = (volatile cdkhdr_t *) EBRDGETMEMPTR(brdp, CDK_CDKADDR);
1361 bits = ((volatile unsigned char *) hdrp) + brdp->slaveoffset +
1363 *bits |= portp->portbit;
1366 set_bit(ST_CLOSING, &portp->state);
1368 restore_flags(flags);
1373 * Slave is in action, so now we must wait for the open acknowledgment
1377 wait_event_interruptible(portp->raw_wait,
1378 !test_bit(ST_CLOSING, &portp->state));
1379 if (signal_pending(current))
1381 restore_flags(flags);
1383 if ((rc == 0) && (portp->rc != 0))
1388 /*****************************************************************************/
1391 * Send a command to the slave and wait for the response. This must
1392 * have user context (it sleeps). This routine is generic in that it
1393 * can send any type of command. Its purpose is to wait for that command
1394 * to complete (as opposed to initiating the command then returning).
1397 static int stli_cmdwait(stlibrd_t *brdp, stliport_t *portp, unsigned long cmd, void *arg, int size, int copyback)
1399 unsigned long flags;
1402 printk("stli_cmdwait(brdp=%x,portp=%x,cmd=%x,arg=%x,size=%d,"
1403 "copyback=%d)\n", (int) brdp, (int) portp, (int) cmd,
1404 (int) arg, size, copyback);
1409 wait_event_interruptible(portp->raw_wait,
1410 !test_bit(ST_CMDING, &portp->state));
1411 if (signal_pending(current)) {
1412 restore_flags(flags);
1413 return -ERESTARTSYS;
1416 stli_sendcmd(brdp, portp, cmd, arg, size, copyback);
1418 wait_event_interruptible(portp->raw_wait,
1419 !test_bit(ST_CMDING, &portp->state));
1420 if (signal_pending(current)) {
1421 restore_flags(flags);
1422 return -ERESTARTSYS;
1424 restore_flags(flags);
1431 /*****************************************************************************/
1434 * Send the termios settings for this port to the slave. This sleeps
1435 * waiting for the command to complete - so must have user context.
1438 static int stli_setport(stliport_t *portp)
1444 printk("stli_setport(portp=%x)\n", (int) portp);
1447 if (portp == (stliport_t *) NULL)
1449 if (portp->tty == (struct tty_struct *) NULL)
1451 if ((portp->brdnr < 0) && (portp->brdnr >= stli_nrbrds))
1453 brdp = stli_brds[portp->brdnr];
1454 if (brdp == (stlibrd_t *) NULL)
1457 stli_mkasyport(portp, &aport, portp->tty->termios);
1458 return(stli_cmdwait(brdp, portp, A_SETPORT, &aport, sizeof(asyport_t), 0));
1461 /*****************************************************************************/
1464 * Possibly need to wait for carrier (DCD signal) to come high. Say
1465 * maybe because if we are clocal then we don't need to wait...
1468 static int stli_waitcarrier(stlibrd_t *brdp, stliport_t *portp, struct file *filp)
1470 unsigned long flags;
1474 printk("stli_waitcarrier(brdp=%x,portp=%x,filp=%x)\n",
1475 (int) brdp, (int) portp, (int) filp);
1481 if (portp->tty->termios->c_cflag & CLOCAL)
1486 portp->openwaitcnt++;
1487 if (! tty_hung_up_p(filp))
1491 stli_mkasysigs(&portp->asig, 1, 1);
1492 if ((rc = stli_cmdwait(brdp, portp, A_SETSIGNALS,
1493 &portp->asig, sizeof(asysigs_t), 0)) < 0)
1495 if (tty_hung_up_p(filp) ||
1496 ((portp->flags & ASYNC_INITIALIZED) == 0)) {
1497 if (portp->flags & ASYNC_HUP_NOTIFY)
1503 if (((portp->flags & ASYNC_CLOSING) == 0) &&
1504 (doclocal || (portp->sigs & TIOCM_CD))) {
1507 if (signal_pending(current)) {
1511 interruptible_sleep_on(&portp->open_wait);
1514 if (! tty_hung_up_p(filp))
1516 portp->openwaitcnt--;
1517 restore_flags(flags);
1522 /*****************************************************************************/
1525 * Write routine. Take the data and put it in the shared memory ring
1526 * queue. If port is not already sending chars then need to mark the
1527 * service bits for this port.
1530 static int stli_write(struct tty_struct *tty, const unsigned char *buf, int count)
1532 volatile cdkasy_t *ap;
1533 volatile cdkhdr_t *hdrp;
1534 volatile unsigned char *bits;
1535 unsigned char *shbuf, *chbuf;
1538 unsigned int len, stlen, head, tail, size;
1539 unsigned long flags;
1542 printk("stli_write(tty=%x,buf=%x,count=%d)\n",
1543 (int) tty, (int) buf, count);
1546 if ((tty == (struct tty_struct *) NULL) ||
1547 (stli_tmpwritebuf == (char *) NULL))
1549 if (tty == stli_txcooktty)
1550 stli_flushchars(tty);
1551 portp = tty->driver_data;
1552 if (portp == (stliport_t *) NULL)
1554 if ((portp->brdnr < 0) || (portp->brdnr >= stli_nrbrds))
1556 brdp = stli_brds[portp->brdnr];
1557 if (brdp == (stlibrd_t *) NULL)
1559 chbuf = (unsigned char *) buf;
1562 * All data is now local, shove as much as possible into shared memory.
1567 ap = (volatile cdkasy_t *) EBRDGETMEMPTR(brdp, portp->addr);
1568 head = (unsigned int) ap->txq.head;
1569 tail = (unsigned int) ap->txq.tail;
1570 if (tail != ((unsigned int) ap->txq.tail))
1571 tail = (unsigned int) ap->txq.tail;
1572 size = portp->txsize;
1574 len = size - (head - tail) - 1;
1575 stlen = size - head;
1577 len = tail - head - 1;
1581 len = MIN(len, count);
1583 shbuf = (char *) EBRDGETMEMPTR(brdp, portp->txoffset);
1586 stlen = MIN(len, stlen);
1587 memcpy((shbuf + head), chbuf, stlen);
1598 ap = (volatile cdkasy_t *) EBRDGETMEMPTR(brdp, portp->addr);
1599 ap->txq.head = head;
1600 if (test_bit(ST_TXBUSY, &portp->state)) {
1601 if (ap->changed.data & DT_TXEMPTY)
1602 ap->changed.data &= ~DT_TXEMPTY;
1604 hdrp = (volatile cdkhdr_t *) EBRDGETMEMPTR(brdp, CDK_CDKADDR);
1605 bits = ((volatile unsigned char *) hdrp) + brdp->slaveoffset +
1607 *bits |= portp->portbit;
1608 set_bit(ST_TXBUSY, &portp->state);
1611 restore_flags(flags);
1616 /*****************************************************************************/
1619 * Output a single character. We put it into a temporary local buffer
1620 * (for speed) then write out that buffer when the flushchars routine
1621 * is called. There is a safety catch here so that if some other port
1622 * writes chars before the current buffer has been, then we write them
1623 * first them do the new ports.
1626 static void stli_putchar(struct tty_struct *tty, unsigned char ch)
1629 printk("stli_putchar(tty=%x,ch=%x)\n", (int) tty, (int) ch);
1632 if (tty == (struct tty_struct *) NULL)
1634 if (tty != stli_txcooktty) {
1635 if (stli_txcooktty != (struct tty_struct *) NULL)
1636 stli_flushchars(stli_txcooktty);
1637 stli_txcooktty = tty;
1640 stli_txcookbuf[stli_txcooksize++] = ch;
1643 /*****************************************************************************/
1646 * Transfer characters from the local TX cooking buffer to the board.
1647 * We sort of ignore the tty that gets passed in here. We rely on the
1648 * info stored with the TX cook buffer to tell us which port to flush
1649 * the data on. In any case we clean out the TX cook buffer, for re-use
1653 static void stli_flushchars(struct tty_struct *tty)
1655 volatile cdkhdr_t *hdrp;
1656 volatile unsigned char *bits;
1657 volatile cdkasy_t *ap;
1658 struct tty_struct *cooktty;
1661 unsigned int len, stlen, head, tail, size, count, cooksize;
1662 unsigned char *buf, *shbuf;
1663 unsigned long flags;
1666 printk("stli_flushchars(tty=%x)\n", (int) tty);
1669 cooksize = stli_txcooksize;
1670 cooktty = stli_txcooktty;
1671 stli_txcooksize = 0;
1672 stli_txcookrealsize = 0;
1673 stli_txcooktty = (struct tty_struct *) NULL;
1675 if (tty == (struct tty_struct *) NULL)
1677 if (cooktty == (struct tty_struct *) NULL)
1684 portp = tty->driver_data;
1685 if (portp == (stliport_t *) NULL)
1687 if ((portp->brdnr < 0) || (portp->brdnr >= stli_nrbrds))
1689 brdp = stli_brds[portp->brdnr];
1690 if (brdp == (stlibrd_t *) NULL)
1697 ap = (volatile cdkasy_t *) EBRDGETMEMPTR(brdp, portp->addr);
1698 head = (unsigned int) ap->txq.head;
1699 tail = (unsigned int) ap->txq.tail;
1700 if (tail != ((unsigned int) ap->txq.tail))
1701 tail = (unsigned int) ap->txq.tail;
1702 size = portp->txsize;
1704 len = size - (head - tail) - 1;
1705 stlen = size - head;
1707 len = tail - head - 1;
1711 len = MIN(len, cooksize);
1713 shbuf = (char *) EBRDGETMEMPTR(brdp, portp->txoffset);
1714 buf = stli_txcookbuf;
1717 stlen = MIN(len, stlen);
1718 memcpy((shbuf + head), buf, stlen);
1729 ap = (volatile cdkasy_t *) EBRDGETMEMPTR(brdp, portp->addr);
1730 ap->txq.head = head;
1732 if (test_bit(ST_TXBUSY, &portp->state)) {
1733 if (ap->changed.data & DT_TXEMPTY)
1734 ap->changed.data &= ~DT_TXEMPTY;
1736 hdrp = (volatile cdkhdr_t *) EBRDGETMEMPTR(brdp, CDK_CDKADDR);
1737 bits = ((volatile unsigned char *) hdrp) + brdp->slaveoffset +
1739 *bits |= portp->portbit;
1740 set_bit(ST_TXBUSY, &portp->state);
1743 restore_flags(flags);
1746 /*****************************************************************************/
1748 static int stli_writeroom(struct tty_struct *tty)
1750 volatile cdkasyrq_t *rp;
1753 unsigned int head, tail, len;
1754 unsigned long flags;
1757 printk("stli_writeroom(tty=%x)\n", (int) tty);
1760 if (tty == (struct tty_struct *) NULL)
1762 if (tty == stli_txcooktty) {
1763 if (stli_txcookrealsize != 0) {
1764 len = stli_txcookrealsize - stli_txcooksize;
1769 portp = tty->driver_data;
1770 if (portp == (stliport_t *) NULL)
1772 if ((portp->brdnr < 0) || (portp->brdnr >= stli_nrbrds))
1774 brdp = stli_brds[portp->brdnr];
1775 if (brdp == (stlibrd_t *) NULL)
1781 rp = &((volatile cdkasy_t *) EBRDGETMEMPTR(brdp, portp->addr))->txq;
1782 head = (unsigned int) rp->head;
1783 tail = (unsigned int) rp->tail;
1784 if (tail != ((unsigned int) rp->tail))
1785 tail = (unsigned int) rp->tail;
1786 len = (head >= tail) ? (portp->txsize - (head - tail)) : (tail - head);
1789 restore_flags(flags);
1791 if (tty == stli_txcooktty) {
1792 stli_txcookrealsize = len;
1793 len -= stli_txcooksize;
1798 /*****************************************************************************/
1801 * Return the number of characters in the transmit buffer. Normally we
1802 * will return the number of chars in the shared memory ring queue.
1803 * We need to kludge around the case where the shared memory buffer is
1804 * empty but not all characters have drained yet, for this case just
1805 * return that there is 1 character in the buffer!
1808 static int stli_charsinbuffer(struct tty_struct *tty)
1810 volatile cdkasyrq_t *rp;
1813 unsigned int head, tail, len;
1814 unsigned long flags;
1817 printk("stli_charsinbuffer(tty=%x)\n", (int) tty);
1820 if (tty == (struct tty_struct *) NULL)
1822 if (tty == stli_txcooktty)
1823 stli_flushchars(tty);
1824 portp = tty->driver_data;
1825 if (portp == (stliport_t *) NULL)
1827 if ((portp->brdnr < 0) || (portp->brdnr >= stli_nrbrds))
1829 brdp = stli_brds[portp->brdnr];
1830 if (brdp == (stlibrd_t *) NULL)
1836 rp = &((volatile cdkasy_t *) EBRDGETMEMPTR(brdp, portp->addr))->txq;
1837 head = (unsigned int) rp->head;
1838 tail = (unsigned int) rp->tail;
1839 if (tail != ((unsigned int) rp->tail))
1840 tail = (unsigned int) rp->tail;
1841 len = (head >= tail) ? (head - tail) : (portp->txsize - (tail - head));
1842 if ((len == 0) && test_bit(ST_TXBUSY, &portp->state))
1845 restore_flags(flags);
1850 /*****************************************************************************/
1853 * Generate the serial struct info.
1856 static int stli_getserial(stliport_t *portp, struct serial_struct __user *sp)
1858 struct serial_struct sio;
1862 printk("stli_getserial(portp=%x,sp=%x)\n", (int) portp, (int) sp);
1865 memset(&sio, 0, sizeof(struct serial_struct));
1866 sio.type = PORT_UNKNOWN;
1867 sio.line = portp->portnr;
1869 sio.flags = portp->flags;
1870 sio.baud_base = portp->baud_base;
1871 sio.close_delay = portp->close_delay;
1872 sio.closing_wait = portp->closing_wait;
1873 sio.custom_divisor = portp->custom_divisor;
1874 sio.xmit_fifo_size = 0;
1877 brdp = stli_brds[portp->brdnr];
1878 if (brdp != (stlibrd_t *) NULL)
1879 sio.port = brdp->iobase;
1881 return copy_to_user(sp, &sio, sizeof(struct serial_struct)) ?
1885 /*****************************************************************************/
1888 * Set port according to the serial struct info.
1889 * At this point we do not do any auto-configure stuff, so we will
1890 * just quietly ignore any requests to change irq, etc.
1893 static int stli_setserial(stliport_t *portp, struct serial_struct __user *sp)
1895 struct serial_struct sio;
1899 printk("stli_setserial(portp=%p,sp=%p)\n", portp, sp);
1902 if (copy_from_user(&sio, sp, sizeof(struct serial_struct)))
1904 if (!capable(CAP_SYS_ADMIN)) {
1905 if ((sio.baud_base != portp->baud_base) ||
1906 (sio.close_delay != portp->close_delay) ||
1907 ((sio.flags & ~ASYNC_USR_MASK) !=
1908 (portp->flags & ~ASYNC_USR_MASK)))
1912 portp->flags = (portp->flags & ~ASYNC_USR_MASK) |
1913 (sio.flags & ASYNC_USR_MASK);
1914 portp->baud_base = sio.baud_base;
1915 portp->close_delay = sio.close_delay;
1916 portp->closing_wait = sio.closing_wait;
1917 portp->custom_divisor = sio.custom_divisor;
1919 if ((rc = stli_setport(portp)) < 0)
1924 /*****************************************************************************/
1926 static int stli_tiocmget(struct tty_struct *tty, struct file *file)
1928 stliport_t *portp = tty->driver_data;
1932 if (portp == (stliport_t *) NULL)
1934 if ((portp->brdnr < 0) || (portp->brdnr >= stli_nrbrds))
1936 brdp = stli_brds[portp->brdnr];
1937 if (brdp == (stlibrd_t *) NULL)
1939 if (tty->flags & (1 << TTY_IO_ERROR))
1942 if ((rc = stli_cmdwait(brdp, portp, A_GETSIGNALS,
1943 &portp->asig, sizeof(asysigs_t), 1)) < 0)
1946 return stli_mktiocm(portp->asig.sigvalue);
1949 static int stli_tiocmset(struct tty_struct *tty, struct file *file,
1950 unsigned int set, unsigned int clear)
1952 stliport_t *portp = tty->driver_data;
1954 int rts = -1, dtr = -1;
1956 if (portp == (stliport_t *) NULL)
1958 if ((portp->brdnr < 0) || (portp->brdnr >= stli_nrbrds))
1960 brdp = stli_brds[portp->brdnr];
1961 if (brdp == (stlibrd_t *) NULL)
1963 if (tty->flags & (1 << TTY_IO_ERROR))
1966 if (set & TIOCM_RTS)
1968 if (set & TIOCM_DTR)
1970 if (clear & TIOCM_RTS)
1972 if (clear & TIOCM_DTR)
1975 stli_mkasysigs(&portp->asig, dtr, rts);
1977 return stli_cmdwait(brdp, portp, A_SETSIGNALS, &portp->asig,
1978 sizeof(asysigs_t), 0);
1981 static int stli_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg)
1987 void __user *argp = (void __user *)arg;
1990 printk("stli_ioctl(tty=%x,file=%x,cmd=%x,arg=%x)\n",
1991 (int) tty, (int) file, cmd, (int) arg);
1994 if (tty == (struct tty_struct *) NULL)
1996 portp = tty->driver_data;
1997 if (portp == (stliport_t *) NULL)
1999 if ((portp->brdnr < 0) || (portp->brdnr >= stli_nrbrds))
2001 brdp = stli_brds[portp->brdnr];
2002 if (brdp == (stlibrd_t *) NULL)
2005 if ((cmd != TIOCGSERIAL) && (cmd != TIOCSSERIAL) &&
2006 (cmd != COM_GETPORTSTATS) && (cmd != COM_CLRPORTSTATS)) {
2007 if (tty->flags & (1 << TTY_IO_ERROR))
2015 rc = put_user(((tty->termios->c_cflag & CLOCAL) ? 1 : 0),
2016 (unsigned __user *) arg);
2019 if ((rc = get_user(ival, (unsigned __user *) arg)) == 0)
2020 tty->termios->c_cflag =
2021 (tty->termios->c_cflag & ~CLOCAL) |
2022 (ival ? CLOCAL : 0);
2025 rc = stli_getserial(portp, argp);
2028 rc = stli_setserial(portp, argp);
2031 rc = put_user(portp->pflag, (unsigned __user *)argp);
2034 if ((rc = get_user(portp->pflag, (unsigned __user *)argp)) == 0)
2035 stli_setport(portp);
2037 case COM_GETPORTSTATS:
2038 rc = stli_getportstats(portp, argp);
2040 case COM_CLRPORTSTATS:
2041 rc = stli_clrportstats(portp, argp);
2047 case TIOCSERGSTRUCT:
2048 case TIOCSERGETMULTI:
2049 case TIOCSERSETMULTI:
2058 /*****************************************************************************/
2061 * This routine assumes that we have user context and can sleep.
2062 * Looks like it is true for the current ttys implementation..!!
2065 static void stli_settermios(struct tty_struct *tty, struct termios *old)
2069 struct termios *tiosp;
2073 printk("stli_settermios(tty=%x,old=%x)\n", (int) tty, (int) old);
2076 if (tty == (struct tty_struct *) NULL)
2078 portp = tty->driver_data;
2079 if (portp == (stliport_t *) NULL)
2081 if ((portp->brdnr < 0) || (portp->brdnr >= stli_nrbrds))
2083 brdp = stli_brds[portp->brdnr];
2084 if (brdp == (stlibrd_t *) NULL)
2087 tiosp = tty->termios;
2088 if ((tiosp->c_cflag == old->c_cflag) &&
2089 (tiosp->c_iflag == old->c_iflag))
2092 stli_mkasyport(portp, &aport, tiosp);
2093 stli_cmdwait(brdp, portp, A_SETPORT, &aport, sizeof(asyport_t), 0);
2094 stli_mkasysigs(&portp->asig, ((tiosp->c_cflag & CBAUD) ? 1 : 0), -1);
2095 stli_cmdwait(brdp, portp, A_SETSIGNALS, &portp->asig,
2096 sizeof(asysigs_t), 0);
2097 if ((old->c_cflag & CRTSCTS) && ((tiosp->c_cflag & CRTSCTS) == 0))
2098 tty->hw_stopped = 0;
2099 if (((old->c_cflag & CLOCAL) == 0) && (tiosp->c_cflag & CLOCAL))
2100 wake_up_interruptible(&portp->open_wait);
2103 /*****************************************************************************/
2106 * Attempt to flow control who ever is sending us data. We won't really
2107 * do any flow control action here. We can't directly, and even if we
2108 * wanted to we would have to send a command to the slave. The slave
2109 * knows how to flow control, and will do so when its buffers reach its
2110 * internal high water marks. So what we will do is set a local state
2111 * bit that will stop us sending any RX data up from the poll routine
2112 * (which is the place where RX data from the slave is handled).
2115 static void stli_throttle(struct tty_struct *tty)
2120 printk("stli_throttle(tty=%x)\n", (int) tty);
2123 if (tty == (struct tty_struct *) NULL)
2125 portp = tty->driver_data;
2126 if (portp == (stliport_t *) NULL)
2129 set_bit(ST_RXSTOP, &portp->state);
2132 /*****************************************************************************/
2135 * Unflow control the device sending us data... That means that all
2136 * we have to do is clear the RXSTOP state bit. The next poll call
2137 * will then be able to pass the RX data back up.
2140 static void stli_unthrottle(struct tty_struct *tty)
2145 printk("stli_unthrottle(tty=%x)\n", (int) tty);
2148 if (tty == (struct tty_struct *) NULL)
2150 portp = tty->driver_data;
2151 if (portp == (stliport_t *) NULL)
2154 clear_bit(ST_RXSTOP, &portp->state);
2157 /*****************************************************************************/
2160 * Stop the transmitter. Basically to do this we will just turn TX
2164 static void stli_stop(struct tty_struct *tty)
2171 printk("stli_stop(tty=%x)\n", (int) tty);
2174 if (tty == (struct tty_struct *) NULL)
2176 portp = tty->driver_data;
2177 if (portp == (stliport_t *) NULL)
2179 if ((portp->brdnr < 0) || (portp->brdnr >= stli_nrbrds))
2181 brdp = stli_brds[portp->brdnr];
2182 if (brdp == (stlibrd_t *) NULL)
2185 memset(&actrl, 0, sizeof(asyctrl_t));
2186 actrl.txctrl = CT_STOPFLOW;
2188 stli_cmdwait(brdp, portp, A_PORTCTRL, &actrl, sizeof(asyctrl_t), 0);
2192 /*****************************************************************************/
2195 * Start the transmitter again. Just turn TX interrupts back on.
2198 static void stli_start(struct tty_struct *tty)
2205 printk("stli_start(tty=%x)\n", (int) tty);
2208 if (tty == (struct tty_struct *) NULL)
2210 portp = tty->driver_data;
2211 if (portp == (stliport_t *) NULL)
2213 if ((portp->brdnr < 0) || (portp->brdnr >= stli_nrbrds))
2215 brdp = stli_brds[portp->brdnr];
2216 if (brdp == (stlibrd_t *) NULL)
2219 memset(&actrl, 0, sizeof(asyctrl_t));
2220 actrl.txctrl = CT_STARTFLOW;
2222 stli_cmdwait(brdp, portp, A_PORTCTRL, &actrl, sizeof(asyctrl_t), 0);
2226 /*****************************************************************************/
2229 * Scheduler called hang up routine. This is called from the scheduler,
2230 * not direct from the driver "poll" routine. We can't call it there
2231 * since the real local hangup code will enable/disable the board and
2232 * other things that we can't do while handling the poll. Much easier
2233 * to deal with it some time later (don't really care when, hangups
2234 * aren't that time critical).
2237 static void stli_dohangup(void *arg)
2242 printk(KERN_DEBUG "stli_dohangup(portp=%x)\n", (int) arg);
2246 * FIXME: There's a module removal race here: tty_hangup
2247 * calls schedule_work which will call into this
2250 portp = (stliport_t *) arg;
2251 if (portp != (stliport_t *) NULL) {
2252 if (portp->tty != (struct tty_struct *) NULL) {
2253 tty_hangup(portp->tty);
2258 /*****************************************************************************/
2261 * Hangup this port. This is pretty much like closing the port, only
2262 * a little more brutal. No waiting for data to drain. Shutdown the
2263 * port and maybe drop signals. This is rather tricky really. We want
2264 * to close the port as well.
2267 static void stli_hangup(struct tty_struct *tty)
2271 unsigned long flags;
2274 printk(KERN_DEBUG "stli_hangup(tty=%x)\n", (int) tty);
2277 if (tty == (struct tty_struct *) NULL)
2279 portp = tty->driver_data;
2280 if (portp == (stliport_t *) NULL)
2282 if ((portp->brdnr < 0) || (portp->brdnr >= stli_nrbrds))
2284 brdp = stli_brds[portp->brdnr];
2285 if (brdp == (stlibrd_t *) NULL)
2288 portp->flags &= ~ASYNC_INITIALIZED;
2292 if (! test_bit(ST_CLOSING, &portp->state))
2293 stli_rawclose(brdp, portp, 0, 0);
2294 if (tty->termios->c_cflag & HUPCL) {
2295 stli_mkasysigs(&portp->asig, 0, 0);
2296 if (test_bit(ST_CMDING, &portp->state)) {
2297 set_bit(ST_DOSIGS, &portp->state);
2298 set_bit(ST_DOFLUSHTX, &portp->state);
2299 set_bit(ST_DOFLUSHRX, &portp->state);
2301 stli_sendcmd(brdp, portp, A_SETSIGNALSF,
2302 &portp->asig, sizeof(asysigs_t), 0);
2305 restore_flags(flags);
2307 clear_bit(ST_TXBUSY, &portp->state);
2308 clear_bit(ST_RXSTOP, &portp->state);
2309 set_bit(TTY_IO_ERROR, &tty->flags);
2310 portp->tty = (struct tty_struct *) NULL;
2311 portp->flags &= ~ASYNC_NORMAL_ACTIVE;
2312 portp->refcount = 0;
2313 wake_up_interruptible(&portp->open_wait);
2316 /*****************************************************************************/
2319 * Flush characters from the lower buffer. We may not have user context
2320 * so we cannot sleep waiting for it to complete. Also we need to check
2321 * if there is chars for this port in the TX cook buffer, and flush them
2325 static void stli_flushbuffer(struct tty_struct *tty)
2329 unsigned long ftype, flags;
2332 printk(KERN_DEBUG "stli_flushbuffer(tty=%x)\n", (int) tty);
2335 if (tty == (struct tty_struct *) NULL)
2337 portp = tty->driver_data;
2338 if (portp == (stliport_t *) NULL)
2340 if ((portp->brdnr < 0) || (portp->brdnr >= stli_nrbrds))
2342 brdp = stli_brds[portp->brdnr];
2343 if (brdp == (stlibrd_t *) NULL)
2348 if (tty == stli_txcooktty) {
2349 stli_txcooktty = (struct tty_struct *) NULL;
2350 stli_txcooksize = 0;
2351 stli_txcookrealsize = 0;
2353 if (test_bit(ST_CMDING, &portp->state)) {
2354 set_bit(ST_DOFLUSHTX, &portp->state);
2357 if (test_bit(ST_DOFLUSHRX, &portp->state)) {
2359 clear_bit(ST_DOFLUSHRX, &portp->state);
2361 stli_sendcmd(brdp, portp, A_FLUSH, &ftype,
2362 sizeof(unsigned long), 0);
2364 restore_flags(flags);
2366 wake_up_interruptible(&tty->write_wait);
2367 if ((tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) &&
2368 tty->ldisc.write_wakeup)
2369 (tty->ldisc.write_wakeup)(tty);
2372 /*****************************************************************************/
2374 static void stli_breakctl(struct tty_struct *tty, int state)
2379 /* long savestate, savetime; */
2382 printk(KERN_DEBUG "stli_breakctl(tty=%x,state=%d)\n", (int) tty, state);
2385 if (tty == (struct tty_struct *) NULL)
2387 portp = tty->driver_data;
2388 if (portp == (stliport_t *) NULL)
2390 if ((portp->brdnr < 0) || (portp->brdnr >= stli_nrbrds))
2392 brdp = stli_brds[portp->brdnr];
2393 if (brdp == (stlibrd_t *) NULL)
2397 * Due to a bug in the tty send_break() code we need to preserve
2398 * the current process state and timeout...
2399 savetime = current->timeout;
2400 savestate = current->state;
2403 arg = (state == -1) ? BREAKON : BREAKOFF;
2404 stli_cmdwait(brdp, portp, A_BREAK, &arg, sizeof(long), 0);
2408 current->timeout = savetime;
2409 current->state = savestate;
2413 /*****************************************************************************/
2415 static void stli_waituntilsent(struct tty_struct *tty, int timeout)
2421 printk(KERN_DEBUG "stli_waituntilsent(tty=%x,timeout=%x)\n", (int) tty, timeout);
2424 if (tty == (struct tty_struct *) NULL)
2426 portp = tty->driver_data;
2427 if (portp == (stliport_t *) NULL)
2432 tend = jiffies + timeout;
2434 while (test_bit(ST_TXBUSY, &portp->state)) {
2435 if (signal_pending(current))
2437 msleep_interruptible(20);
2438 if (time_after_eq(jiffies, tend))
2443 /*****************************************************************************/
2445 static void stli_sendxchar(struct tty_struct *tty, char ch)
2452 printk(KERN_DEBUG "stli_sendxchar(tty=%x,ch=%x)\n", (int) tty, ch);
2455 if (tty == (struct tty_struct *) NULL)
2457 portp = tty->driver_data;
2458 if (portp == (stliport_t *) NULL)
2460 if ((portp->brdnr < 0) || (portp->brdnr >= stli_nrbrds))
2462 brdp = stli_brds[portp->brdnr];
2463 if (brdp == (stlibrd_t *) NULL)
2466 memset(&actrl, 0, sizeof(asyctrl_t));
2467 if (ch == STOP_CHAR(tty)) {
2468 actrl.rxctrl = CT_STOPFLOW;
2469 } else if (ch == START_CHAR(tty)) {
2470 actrl.rxctrl = CT_STARTFLOW;
2472 actrl.txctrl = CT_SENDCHR;
2476 stli_cmdwait(brdp, portp, A_PORTCTRL, &actrl, sizeof(asyctrl_t), 0);
2479 /*****************************************************************************/
2484 * Format info for a specified port. The line is deliberately limited
2485 * to 80 characters. (If it is too long it will be truncated, if too
2486 * short then padded with spaces).
2489 static int stli_portinfo(stlibrd_t *brdp, stliport_t *portp, int portnr, char *pos)
2494 rc = stli_portcmdstats(portp);
2497 if (brdp->state & BST_STARTED) {
2498 switch (stli_comstats.hwid) {
2499 case 0: uart = "2681"; break;
2500 case 1: uart = "SC26198"; break;
2501 default: uart = "CD1400"; break;
2506 sp += sprintf(sp, "%d: uart:%s ", portnr, uart);
2508 if ((brdp->state & BST_STARTED) && (rc >= 0)) {
2509 sp += sprintf(sp, "tx:%d rx:%d", (int) stli_comstats.txtotal,
2510 (int) stli_comstats.rxtotal);
2512 if (stli_comstats.rxframing)
2513 sp += sprintf(sp, " fe:%d",
2514 (int) stli_comstats.rxframing);
2515 if (stli_comstats.rxparity)
2516 sp += sprintf(sp, " pe:%d",
2517 (int) stli_comstats.rxparity);
2518 if (stli_comstats.rxbreaks)
2519 sp += sprintf(sp, " brk:%d",
2520 (int) stli_comstats.rxbreaks);
2521 if (stli_comstats.rxoverrun)
2522 sp += sprintf(sp, " oe:%d",
2523 (int) stli_comstats.rxoverrun);
2525 cnt = sprintf(sp, "%s%s%s%s%s ",
2526 (stli_comstats.signals & TIOCM_RTS) ? "|RTS" : "",
2527 (stli_comstats.signals & TIOCM_CTS) ? "|CTS" : "",
2528 (stli_comstats.signals & TIOCM_DTR) ? "|DTR" : "",
2529 (stli_comstats.signals & TIOCM_CD) ? "|DCD" : "",
2530 (stli_comstats.signals & TIOCM_DSR) ? "|DSR" : "");
2535 for (cnt = (sp - pos); (cnt < (MAXLINE - 1)); cnt++)
2538 pos[(MAXLINE - 2)] = '+';
2539 pos[(MAXLINE - 1)] = '\n';
2544 /*****************************************************************************/
2547 * Port info, read from the /proc file system.
2550 static int stli_readproc(char *page, char **start, off_t off, int count, int *eof, void *data)
2554 int brdnr, portnr, totalport;
2559 printk(KERN_DEBUG "stli_readproc(page=%x,start=%x,off=%x,count=%d,eof=%x,"
2560 "data=%x\n", (int) page, (int) start, (int) off, count,
2561 (int) eof, (int) data);
2569 pos += sprintf(pos, "%s: version %s", stli_drvtitle,
2571 while (pos < (page + MAXLINE - 1))
2578 * We scan through for each board, panel and port. The offset is
2579 * calculated on the fly, and irrelevant ports are skipped.
2581 for (brdnr = 0; (brdnr < stli_nrbrds); brdnr++) {
2582 brdp = stli_brds[brdnr];
2583 if (brdp == (stlibrd_t *) NULL)
2585 if (brdp->state == 0)
2588 maxoff = curoff + (brdp->nrports * MAXLINE);
2589 if (off >= maxoff) {
2594 totalport = brdnr * STL_MAXPORTS;
2595 for (portnr = 0; (portnr < brdp->nrports); portnr++,
2597 portp = brdp->ports[portnr];
2598 if (portp == (stliport_t *) NULL)
2600 if (off >= (curoff += MAXLINE))
2602 if ((pos - page + MAXLINE) > count)
2604 pos += stli_portinfo(brdp, portp, totalport, pos);
2615 /*****************************************************************************/
2618 * Generic send command routine. This will send a message to the slave,
2619 * of the specified type with the specified argument. Must be very
2620 * careful of data that will be copied out from shared memory -
2621 * containing command results. The command completion is all done from
2622 * a poll routine that does not have user context. Therefore you cannot
2623 * copy back directly into user space, or to the kernel stack of a
2624 * process. This routine does not sleep, so can be called from anywhere.
2627 static void stli_sendcmd(stlibrd_t *brdp, stliport_t *portp, unsigned long cmd, void *arg, int size, int copyback)
2629 volatile cdkhdr_t *hdrp;
2630 volatile cdkctrl_t *cp;
2631 volatile unsigned char *bits;
2632 unsigned long flags;
2635 printk(KERN_DEBUG "stli_sendcmd(brdp=%x,portp=%x,cmd=%x,arg=%x,size=%d,"
2636 "copyback=%d)\n", (int) brdp, (int) portp, (int) cmd,
2637 (int) arg, size, copyback);
2643 if (test_bit(ST_CMDING, &portp->state)) {
2644 printk(KERN_ERR "STALLION: command already busy, cmd=%x!\n",
2646 restore_flags(flags);
2651 cp = &((volatile cdkasy_t *) EBRDGETMEMPTR(brdp, portp->addr))->ctrl;
2653 memcpy((void *) &(cp->args[0]), arg, size);
2656 portp->argsize = size;
2661 hdrp = (volatile cdkhdr_t *) EBRDGETMEMPTR(brdp, CDK_CDKADDR);
2662 bits = ((volatile unsigned char *) hdrp) + brdp->slaveoffset +
2664 *bits |= portp->portbit;
2665 set_bit(ST_CMDING, &portp->state);
2667 restore_flags(flags);
2670 /*****************************************************************************/
2673 * Read data from shared memory. This assumes that the shared memory
2674 * is enabled and that interrupts are off. Basically we just empty out
2675 * the shared memory buffer into the tty buffer. Must be careful to
2676 * handle the case where we fill up the tty buffer, but still have
2677 * more chars to unload.
2680 static void stli_read(stlibrd_t *brdp, stliport_t *portp)
2682 volatile cdkasyrq_t *rp;
2683 volatile char *shbuf;
2684 struct tty_struct *tty;
2685 unsigned int head, tail, size;
2686 unsigned int len, stlen;
2689 printk(KERN_DEBUG "stli_read(brdp=%x,portp=%d)\n",
2690 (int) brdp, (int) portp);
2693 if (test_bit(ST_RXSTOP, &portp->state))
2696 if (tty == (struct tty_struct *) NULL)
2699 rp = &((volatile cdkasy_t *) EBRDGETMEMPTR(brdp, portp->addr))->rxq;
2700 head = (unsigned int) rp->head;
2701 if (head != ((unsigned int) rp->head))
2702 head = (unsigned int) rp->head;
2703 tail = (unsigned int) rp->tail;
2704 size = portp->rxsize;
2709 len = size - (tail - head);
2710 stlen = size - tail;
2713 len = tty_buffer_request_room(tty, len);
2714 /* FIXME : iomap ? */
2715 shbuf = (volatile char *) EBRDGETMEMPTR(brdp, portp->rxoffset);
2718 stlen = MIN(len, stlen);
2719 tty_insert_flip_string(tty, (char *)(shbuf + tail), stlen);
2727 rp = &((volatile cdkasy_t *) EBRDGETMEMPTR(brdp, portp->addr))->rxq;
2731 set_bit(ST_RXING, &portp->state);
2733 tty_schedule_flip(tty);
2736 /*****************************************************************************/
2739 * Set up and carry out any delayed commands. There is only a small set
2740 * of slave commands that can be done "off-level". So it is not too
2741 * difficult to deal with them here.
2744 static void stli_dodelaycmd(stliport_t *portp, volatile cdkctrl_t *cp)
2748 if (test_bit(ST_DOSIGS, &portp->state)) {
2749 if (test_bit(ST_DOFLUSHTX, &portp->state) &&
2750 test_bit(ST_DOFLUSHRX, &portp->state))
2751 cmd = A_SETSIGNALSF;
2752 else if (test_bit(ST_DOFLUSHTX, &portp->state))
2753 cmd = A_SETSIGNALSFTX;
2754 else if (test_bit(ST_DOFLUSHRX, &portp->state))
2755 cmd = A_SETSIGNALSFRX;
2758 clear_bit(ST_DOFLUSHTX, &portp->state);
2759 clear_bit(ST_DOFLUSHRX, &portp->state);
2760 clear_bit(ST_DOSIGS, &portp->state);
2761 memcpy((void *) &(cp->args[0]), (void *) &portp->asig,
2765 set_bit(ST_CMDING, &portp->state);
2766 } else if (test_bit(ST_DOFLUSHTX, &portp->state) ||
2767 test_bit(ST_DOFLUSHRX, &portp->state)) {
2768 cmd = ((test_bit(ST_DOFLUSHTX, &portp->state)) ? FLUSHTX : 0);
2769 cmd |= ((test_bit(ST_DOFLUSHRX, &portp->state)) ? FLUSHRX : 0);
2770 clear_bit(ST_DOFLUSHTX, &portp->state);
2771 clear_bit(ST_DOFLUSHRX, &portp->state);
2772 memcpy((void *) &(cp->args[0]), (void *) &cmd, sizeof(int));
2775 set_bit(ST_CMDING, &portp->state);
2779 /*****************************************************************************/
2782 * Host command service checking. This handles commands or messages
2783 * coming from the slave to the host. Must have board shared memory
2784 * enabled and interrupts off when called. Notice that by servicing the
2785 * read data last we don't need to change the shared memory pointer
2786 * during processing (which is a slow IO operation).
2787 * Return value indicates if this port is still awaiting actions from
2788 * the slave (like open, command, or even TX data being sent). If 0
2789 * then port is still busy, otherwise no longer busy.
2792 static int stli_hostcmd(stlibrd_t *brdp, stliport_t *portp)
2794 volatile cdkasy_t *ap;
2795 volatile cdkctrl_t *cp;
2796 struct tty_struct *tty;
2798 unsigned long oldsigs;
2802 printk(KERN_DEBUG "stli_hostcmd(brdp=%x,channr=%d)\n",
2803 (int) brdp, channr);
2806 ap = (volatile cdkasy_t *) EBRDGETMEMPTR(brdp, portp->addr);
2810 * Check if we are waiting for an open completion message.
2812 if (test_bit(ST_OPENING, &portp->state)) {
2813 rc = (int) cp->openarg;
2814 if ((cp->open == 0) && (rc != 0)) {
2819 clear_bit(ST_OPENING, &portp->state);
2820 wake_up_interruptible(&portp->raw_wait);
2825 * Check if we are waiting for a close completion message.
2827 if (test_bit(ST_CLOSING, &portp->state)) {
2828 rc = (int) cp->closearg;
2829 if ((cp->close == 0) && (rc != 0)) {
2834 clear_bit(ST_CLOSING, &portp->state);
2835 wake_up_interruptible(&portp->raw_wait);
2840 * Check if we are waiting for a command completion message. We may
2841 * need to copy out the command results associated with this command.
2843 if (test_bit(ST_CMDING, &portp->state)) {
2845 if ((cp->cmd == 0) && (rc != 0)) {
2848 if (portp->argp != (void *) NULL) {
2849 memcpy(portp->argp, (void *) &(cp->args[0]),
2851 portp->argp = (void *) NULL;
2855 clear_bit(ST_CMDING, &portp->state);
2856 stli_dodelaycmd(portp, cp);
2857 wake_up_interruptible(&portp->raw_wait);
2862 * Check for any notification messages ready. This includes lots of
2863 * different types of events - RX chars ready, RX break received,
2864 * TX data low or empty in the slave, modem signals changed state.
2873 if (nt.signal & SG_DCD) {
2874 oldsigs = portp->sigs;
2875 portp->sigs = stli_mktiocm(nt.sigvalue);
2876 clear_bit(ST_GETSIGS, &portp->state);
2877 if ((portp->sigs & TIOCM_CD) &&
2878 ((oldsigs & TIOCM_CD) == 0))
2879 wake_up_interruptible(&portp->open_wait);
2880 if ((oldsigs & TIOCM_CD) &&
2881 ((portp->sigs & TIOCM_CD) == 0)) {
2882 if (portp->flags & ASYNC_CHECK_CD) {
2884 schedule_work(&portp->tqhangup);
2889 if (nt.data & DT_TXEMPTY)
2890 clear_bit(ST_TXBUSY, &portp->state);
2891 if (nt.data & (DT_TXEMPTY | DT_TXLOW)) {
2892 if (tty != (struct tty_struct *) NULL) {
2893 if ((tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) &&
2894 tty->ldisc.write_wakeup) {
2895 (tty->ldisc.write_wakeup)(tty);
2898 wake_up_interruptible(&tty->write_wait);
2902 if ((nt.data & DT_RXBREAK) && (portp->rxmarkmsk & BRKINT)) {
2903 if (tty != (struct tty_struct *) NULL) {
2904 tty_insert_flip_char(tty, 0, TTY_BREAK);
2905 if (portp->flags & ASYNC_SAK) {
2909 tty_schedule_flip(tty);
2913 if (nt.data & DT_RXBUSY) {
2915 stli_read(brdp, portp);
2920 * It might seem odd that we are checking for more RX chars here.
2921 * But, we need to handle the case where the tty buffer was previously
2922 * filled, but we had more characters to pass up. The slave will not
2923 * send any more RX notify messages until the RX buffer has been emptied.
2924 * But it will leave the service bits on (since the buffer is not empty).
2925 * So from here we can try to process more RX chars.
2927 if ((!donerx) && test_bit(ST_RXING, &portp->state)) {
2928 clear_bit(ST_RXING, &portp->state);
2929 stli_read(brdp, portp);
2932 return((test_bit(ST_OPENING, &portp->state) ||
2933 test_bit(ST_CLOSING, &portp->state) ||
2934 test_bit(ST_CMDING, &portp->state) ||
2935 test_bit(ST_TXBUSY, &portp->state) ||
2936 test_bit(ST_RXING, &portp->state)) ? 0 : 1);
2939 /*****************************************************************************/
2942 * Service all ports on a particular board. Assumes that the boards
2943 * shared memory is enabled, and that the page pointer is pointed
2944 * at the cdk header structure.
2947 static void stli_brdpoll(stlibrd_t *brdp, volatile cdkhdr_t *hdrp)
2950 unsigned char hostbits[(STL_MAXCHANS / 8) + 1];
2951 unsigned char slavebits[(STL_MAXCHANS / 8) + 1];
2952 unsigned char *slavep;
2953 int bitpos, bitat, bitsize;
2954 int channr, nrdevs, slavebitchange;
2956 bitsize = brdp->bitsize;
2957 nrdevs = brdp->nrdevs;
2960 * Check if slave wants any service. Basically we try to do as
2961 * little work as possible here. There are 2 levels of service
2962 * bits. So if there is nothing to do we bail early. We check
2963 * 8 service bits at a time in the inner loop, so we can bypass
2964 * the lot if none of them want service.
2966 memcpy(&hostbits[0], (((unsigned char *) hdrp) + brdp->hostoffset),
2969 memset(&slavebits[0], 0, bitsize);
2972 for (bitpos = 0; (bitpos < bitsize); bitpos++) {
2973 if (hostbits[bitpos] == 0)
2975 channr = bitpos * 8;
2976 for (bitat = 0x1; (channr < nrdevs); channr++, bitat <<= 1) {
2977 if (hostbits[bitpos] & bitat) {
2978 portp = brdp->ports[(channr - 1)];
2979 if (stli_hostcmd(brdp, portp)) {
2981 slavebits[bitpos] |= bitat;
2988 * If any of the ports are no longer busy then update them in the
2989 * slave request bits. We need to do this after, since a host port
2990 * service may initiate more slave requests.
2992 if (slavebitchange) {
2993 hdrp = (volatile cdkhdr_t *) EBRDGETMEMPTR(brdp, CDK_CDKADDR);
2994 slavep = ((unsigned char *) hdrp) + brdp->slaveoffset;
2995 for (bitpos = 0; (bitpos < bitsize); bitpos++) {
2996 if (slavebits[bitpos])
2997 slavep[bitpos] &= ~slavebits[bitpos];
3002 /*****************************************************************************/
3005 * Driver poll routine. This routine polls the boards in use and passes
3006 * messages back up to host when necessary. This is actually very
3007 * CPU efficient, since we will always have the kernel poll clock, it
3008 * adds only a few cycles when idle (since board service can be
3009 * determined very easily), but when loaded generates no interrupts
3010 * (with their expensive associated context change).
3013 static void stli_poll(unsigned long arg)
3015 volatile cdkhdr_t *hdrp;
3019 stli_timerlist.expires = STLI_TIMEOUT;
3020 add_timer(&stli_timerlist);
3023 * Check each board and do any servicing required.
3025 for (brdnr = 0; (brdnr < stli_nrbrds); brdnr++) {
3026 brdp = stli_brds[brdnr];
3027 if (brdp == (stlibrd_t *) NULL)
3029 if ((brdp->state & BST_STARTED) == 0)
3033 hdrp = (volatile cdkhdr_t *) EBRDGETMEMPTR(brdp, CDK_CDKADDR);
3035 stli_brdpoll(brdp, hdrp);
3040 /*****************************************************************************/
3043 * Translate the termios settings into the port setting structure of
3047 static void stli_mkasyport(stliport_t *portp, asyport_t *pp, struct termios *tiosp)
3050 printk(KERN_DEBUG "stli_mkasyport(portp=%x,pp=%x,tiosp=%d)\n",
3051 (int) portp, (int) pp, (int) tiosp);
3054 memset(pp, 0, sizeof(asyport_t));
3057 * Start of by setting the baud, char size, parity and stop bit info.
3059 pp->baudout = tiosp->c_cflag & CBAUD;
3060 if (pp->baudout & CBAUDEX) {
3061 pp->baudout &= ~CBAUDEX;
3062 if ((pp->baudout < 1) || (pp->baudout > 4))
3063 tiosp->c_cflag &= ~CBAUDEX;
3067 pp->baudout = stli_baudrates[pp->baudout];
3068 if ((tiosp->c_cflag & CBAUD) == B38400) {
3069 if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
3070 pp->baudout = 57600;
3071 else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
3072 pp->baudout = 115200;
3073 else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
3074 pp->baudout = 230400;
3075 else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
3076 pp->baudout = 460800;
3077 else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST)
3078 pp->baudout = (portp->baud_base / portp->custom_divisor);
3080 if (pp->baudout > STL_MAXBAUD)
3081 pp->baudout = STL_MAXBAUD;
3082 pp->baudin = pp->baudout;
3084 switch (tiosp->c_cflag & CSIZE) {
3099 if (tiosp->c_cflag & CSTOPB)
3100 pp->stopbs = PT_STOP2;
3102 pp->stopbs = PT_STOP1;
3104 if (tiosp->c_cflag & PARENB) {
3105 if (tiosp->c_cflag & PARODD)
3106 pp->parity = PT_ODDPARITY;
3108 pp->parity = PT_EVENPARITY;
3110 pp->parity = PT_NOPARITY;
3114 * Set up any flow control options enabled.
3116 if (tiosp->c_iflag & IXON) {
3118 if (tiosp->c_iflag & IXANY)
3119 pp->flow |= F_IXANY;
3121 if (tiosp->c_cflag & CRTSCTS)
3122 pp->flow |= (F_RTSFLOW | F_CTSFLOW);
3124 pp->startin = tiosp->c_cc[VSTART];
3125 pp->stopin = tiosp->c_cc[VSTOP];
3126 pp->startout = tiosp->c_cc[VSTART];
3127 pp->stopout = tiosp->c_cc[VSTOP];
3130 * Set up the RX char marking mask with those RX error types we must
3131 * catch. We can get the slave to help us out a little here, it will
3132 * ignore parity errors and breaks for us, and mark parity errors in
3135 if (tiosp->c_iflag & IGNPAR)
3136 pp->iflag |= FI_IGNRXERRS;
3137 if (tiosp->c_iflag & IGNBRK)
3138 pp->iflag |= FI_IGNBREAK;
3140 portp->rxmarkmsk = 0;
3141 if (tiosp->c_iflag & (INPCK | PARMRK))
3142 pp->iflag |= FI_1MARKRXERRS;
3143 if (tiosp->c_iflag & BRKINT)
3144 portp->rxmarkmsk |= BRKINT;
3147 * Set up clocal processing as required.
3149 if (tiosp->c_cflag & CLOCAL)
3150 portp->flags &= ~ASYNC_CHECK_CD;
3152 portp->flags |= ASYNC_CHECK_CD;
3155 * Transfer any persistent flags into the asyport structure.
3157 pp->pflag = (portp->pflag & 0xffff);
3158 pp->vmin = (portp->pflag & P_RXIMIN) ? 1 : 0;
3159 pp->vtime = (portp->pflag & P_RXITIME) ? 1 : 0;
3160 pp->cc[1] = (portp->pflag & P_RXTHOLD) ? 1 : 0;
3163 /*****************************************************************************/
3166 * Construct a slave signals structure for setting the DTR and RTS
3167 * signals as specified.
3170 static void stli_mkasysigs(asysigs_t *sp, int dtr, int rts)
3173 printk(KERN_DEBUG "stli_mkasysigs(sp=%x,dtr=%d,rts=%d)\n",
3174 (int) sp, dtr, rts);
3177 memset(sp, 0, sizeof(asysigs_t));
3179 sp->signal |= SG_DTR;
3180 sp->sigvalue |= ((dtr > 0) ? SG_DTR : 0);
3183 sp->signal |= SG_RTS;
3184 sp->sigvalue |= ((rts > 0) ? SG_RTS : 0);
3188 /*****************************************************************************/
3191 * Convert the signals returned from the slave into a local TIOCM type
3192 * signals value. We keep them locally in TIOCM format.
3195 static long stli_mktiocm(unsigned long sigvalue)
3200 printk(KERN_DEBUG "stli_mktiocm(sigvalue=%x)\n", (int) sigvalue);
3204 tiocm |= ((sigvalue & SG_DCD) ? TIOCM_CD : 0);
3205 tiocm |= ((sigvalue & SG_CTS) ? TIOCM_CTS : 0);
3206 tiocm |= ((sigvalue & SG_RI) ? TIOCM_RI : 0);
3207 tiocm |= ((sigvalue & SG_DSR) ? TIOCM_DSR : 0);
3208 tiocm |= ((sigvalue & SG_DTR) ? TIOCM_DTR : 0);
3209 tiocm |= ((sigvalue & SG_RTS) ? TIOCM_RTS : 0);
3213 /*****************************************************************************/
3216 * All panels and ports actually attached have been worked out. All
3217 * we need to do here is set up the appropriate per port data structures.
3220 static int stli_initports(stlibrd_t *brdp)
3223 int i, panelnr, panelport;
3226 printk(KERN_DEBUG "stli_initports(brdp=%x)\n", (int) brdp);
3229 for (i = 0, panelnr = 0, panelport = 0; (i < brdp->nrports); i++) {
3230 portp = (stliport_t *) stli_memalloc(sizeof(stliport_t));
3231 if (portp == (stliport_t *) NULL) {
3232 printk("STALLION: failed to allocate port structure\n");
3236 memset(portp, 0, sizeof(stliport_t));
3237 portp->magic = STLI_PORTMAGIC;
3239 portp->brdnr = brdp->brdnr;
3240 portp->panelnr = panelnr;
3241 portp->baud_base = STL_BAUDBASE;
3242 portp->close_delay = STL_CLOSEDELAY;
3243 portp->closing_wait = 30 * HZ;
3244 INIT_WORK(&portp->tqhangup, stli_dohangup, portp);
3245 init_waitqueue_head(&portp->open_wait);
3246 init_waitqueue_head(&portp->close_wait);
3247 init_waitqueue_head(&portp->raw_wait);
3249 if (panelport >= brdp->panels[panelnr]) {
3253 brdp->ports[i] = portp;
3259 /*****************************************************************************/
3262 * All the following routines are board specific hardware operations.
3265 static void stli_ecpinit(stlibrd_t *brdp)
3267 unsigned long memconf;
3270 printk(KERN_DEBUG "stli_ecpinit(brdp=%d)\n", (int) brdp);
3273 outb(ECP_ATSTOP, (brdp->iobase + ECP_ATCONFR));
3275 outb(ECP_ATDISABLE, (brdp->iobase + ECP_ATCONFR));
3278 memconf = (brdp->memaddr & ECP_ATADDRMASK) >> ECP_ATADDRSHFT;
3279 outb(memconf, (brdp->iobase + ECP_ATMEMAR));
3282 /*****************************************************************************/
3284 static void stli_ecpenable(stlibrd_t *brdp)
3287 printk(KERN_DEBUG "stli_ecpenable(brdp=%x)\n", (int) brdp);
3289 outb(ECP_ATENABLE, (brdp->iobase + ECP_ATCONFR));
3292 /*****************************************************************************/
3294 static void stli_ecpdisable(stlibrd_t *brdp)
3297 printk(KERN_DEBUG "stli_ecpdisable(brdp=%x)\n", (int) brdp);
3299 outb(ECP_ATDISABLE, (brdp->iobase + ECP_ATCONFR));
3302 /*****************************************************************************/
3304 static char *stli_ecpgetmemptr(stlibrd_t *brdp, unsigned long offset, int line)
3310 printk(KERN_DEBUG "stli_ecpgetmemptr(brdp=%x,offset=%x)\n", (int) brdp,
3314 if (offset > brdp->memsize) {
3315 printk(KERN_ERR "STALLION: shared memory pointer=%x out of "
3316 "range at line=%d(%d), brd=%d\n",
3317 (int) offset, line, __LINE__, brdp->brdnr);
3321 ptr = brdp->membase + (offset % ECP_ATPAGESIZE);
3322 val = (unsigned char) (offset / ECP_ATPAGESIZE);
3324 outb(val, (brdp->iobase + ECP_ATMEMPR));
3328 /*****************************************************************************/
3330 static void stli_ecpreset(stlibrd_t *brdp)
3333 printk(KERN_DEBUG "stli_ecpreset(brdp=%x)\n", (int) brdp);
3336 outb(ECP_ATSTOP, (brdp->iobase + ECP_ATCONFR));
3338 outb(ECP_ATDISABLE, (brdp->iobase + ECP_ATCONFR));
3342 /*****************************************************************************/
3344 static void stli_ecpintr(stlibrd_t *brdp)
3347 printk(KERN_DEBUG "stli_ecpintr(brdp=%x)\n", (int) brdp);
3349 outb(0x1, brdp->iobase);
3352 /*****************************************************************************/
3355 * The following set of functions act on ECP EISA boards.
3358 static void stli_ecpeiinit(stlibrd_t *brdp)
3360 unsigned long memconf;
3363 printk(KERN_DEBUG "stli_ecpeiinit(brdp=%x)\n", (int) brdp);
3366 outb(0x1, (brdp->iobase + ECP_EIBRDENAB));
3367 outb(ECP_EISTOP, (brdp->iobase + ECP_EICONFR));
3369 outb(ECP_EIDISABLE, (brdp->iobase + ECP_EICONFR));
3372 memconf = (brdp->memaddr & ECP_EIADDRMASKL) >> ECP_EIADDRSHFTL;
3373 outb(memconf, (brdp->iobase + ECP_EIMEMARL));
3374 memconf = (brdp->memaddr & ECP_EIADDRMASKH) >> ECP_EIADDRSHFTH;
3375 outb(memconf, (brdp->iobase + ECP_EIMEMARH));
3378 /*****************************************************************************/
3380 static void stli_ecpeienable(stlibrd_t *brdp)
3382 outb(ECP_EIENABLE, (brdp->iobase + ECP_EICONFR));
3385 /*****************************************************************************/
3387 static void stli_ecpeidisable(stlibrd_t *brdp)
3389 outb(ECP_EIDISABLE, (brdp->iobase + ECP_EICONFR));
3392 /*****************************************************************************/
3394 static char *stli_ecpeigetmemptr(stlibrd_t *brdp, unsigned long offset, int line)
3400 printk(KERN_DEBUG "stli_ecpeigetmemptr(brdp=%x,offset=%x,line=%d)\n",
3401 (int) brdp, (int) offset, line);
3404 if (offset > brdp->memsize) {
3405 printk(KERN_ERR "STALLION: shared memory pointer=%x out of "
3406 "range at line=%d(%d), brd=%d\n",
3407 (int) offset, line, __LINE__, brdp->brdnr);
3411 ptr = brdp->membase + (offset % ECP_EIPAGESIZE);
3412 if (offset < ECP_EIPAGESIZE)
3415 val = ECP_EIENABLE | 0x40;
3417 outb(val, (brdp->iobase + ECP_EICONFR));
3421 /*****************************************************************************/
3423 static void stli_ecpeireset(stlibrd_t *brdp)
3425 outb(ECP_EISTOP, (brdp->iobase + ECP_EICONFR));
3427 outb(ECP_EIDISABLE, (brdp->iobase + ECP_EICONFR));
3431 /*****************************************************************************/
3434 * The following set of functions act on ECP MCA boards.
3437 static void stli_ecpmcenable(stlibrd_t *brdp)
3439 outb(ECP_MCENABLE, (brdp->iobase + ECP_MCCONFR));
3442 /*****************************************************************************/
3444 static void stli_ecpmcdisable(stlibrd_t *brdp)
3446 outb(ECP_MCDISABLE, (brdp->iobase + ECP_MCCONFR));
3449 /*****************************************************************************/
3451 static char *stli_ecpmcgetmemptr(stlibrd_t *brdp, unsigned long offset, int line)
3456 if (offset > brdp->memsize) {
3457 printk(KERN_ERR "STALLION: shared memory pointer=%x out of "
3458 "range at line=%d(%d), brd=%d\n",
3459 (int) offset, line, __LINE__, brdp->brdnr);
3463 ptr = brdp->membase + (offset % ECP_MCPAGESIZE);
3464 val = ((unsigned char) (offset / ECP_MCPAGESIZE)) | ECP_MCENABLE;
3466 outb(val, (brdp->iobase + ECP_MCCONFR));
3470 /*****************************************************************************/
3472 static void stli_ecpmcreset(stlibrd_t *brdp)
3474 outb(ECP_MCSTOP, (brdp->iobase + ECP_MCCONFR));
3476 outb(ECP_MCDISABLE, (brdp->iobase + ECP_MCCONFR));
3480 /*****************************************************************************/
3483 * The following set of functions act on ECP PCI boards.
3486 static void stli_ecppciinit(stlibrd_t *brdp)
3489 printk(KERN_DEBUG "stli_ecppciinit(brdp=%x)\n", (int) brdp);
3492 outb(ECP_PCISTOP, (brdp->iobase + ECP_PCICONFR));
3494 outb(0, (brdp->iobase + ECP_PCICONFR));
3498 /*****************************************************************************/
3500 static char *stli_ecppcigetmemptr(stlibrd_t *brdp, unsigned long offset, int line)
3506 printk(KERN_DEBUG "stli_ecppcigetmemptr(brdp=%x,offset=%x,line=%d)\n",
3507 (int) brdp, (int) offset, line);
3510 if (offset > brdp->memsize) {
3511 printk(KERN_ERR "STALLION: shared memory pointer=%x out of "
3512 "range at line=%d(%d), board=%d\n",
3513 (int) offset, line, __LINE__, brdp->brdnr);
3517 ptr = brdp->membase + (offset % ECP_PCIPAGESIZE);
3518 val = (offset / ECP_PCIPAGESIZE) << 1;
3520 outb(val, (brdp->iobase + ECP_PCICONFR));
3524 /*****************************************************************************/
3526 static void stli_ecppcireset(stlibrd_t *brdp)
3528 outb(ECP_PCISTOP, (brdp->iobase + ECP_PCICONFR));
3530 outb(0, (brdp->iobase + ECP_PCICONFR));
3534 /*****************************************************************************/
3537 * The following routines act on ONboards.
3540 static void stli_onbinit(stlibrd_t *brdp)
3542 unsigned long memconf;
3545 printk(KERN_DEBUG "stli_onbinit(brdp=%d)\n", (int) brdp);
3548 outb(ONB_ATSTOP, (brdp->iobase + ONB_ATCONFR));
3550 outb(ONB_ATDISABLE, (brdp->iobase + ONB_ATCONFR));
3553 memconf = (brdp->memaddr & ONB_ATADDRMASK) >> ONB_ATADDRSHFT;
3554 outb(memconf, (brdp->iobase + ONB_ATMEMAR));
3555 outb(0x1, brdp->iobase);
3559 /*****************************************************************************/
3561 static void stli_onbenable(stlibrd_t *brdp)
3564 printk(KERN_DEBUG "stli_onbenable(brdp=%x)\n", (int) brdp);
3566 outb((brdp->enabval | ONB_ATENABLE), (brdp->iobase + ONB_ATCONFR));
3569 /*****************************************************************************/
3571 static void stli_onbdisable(stlibrd_t *brdp)
3574 printk(KERN_DEBUG "stli_onbdisable(brdp=%x)\n", (int) brdp);
3576 outb((brdp->enabval | ONB_ATDISABLE), (brdp->iobase + ONB_ATCONFR));
3579 /*****************************************************************************/
3581 static char *stli_onbgetmemptr(stlibrd_t *brdp, unsigned long offset, int line)
3586 printk(KERN_DEBUG "stli_onbgetmemptr(brdp=%x,offset=%x)\n", (int) brdp,
3590 if (offset > brdp->memsize) {
3591 printk(KERN_ERR "STALLION: shared memory pointer=%x out of "
3592 "range at line=%d(%d), brd=%d\n",
3593 (int) offset, line, __LINE__, brdp->brdnr);
3596 ptr = brdp->membase + (offset % ONB_ATPAGESIZE);
3601 /*****************************************************************************/
3603 static void stli_onbreset(stlibrd_t *brdp)
3607 printk(KERN_DEBUG "stli_onbreset(brdp=%x)\n", (int) brdp);
3610 outb(ONB_ATSTOP, (brdp->iobase + ONB_ATCONFR));
3612 outb(ONB_ATDISABLE, (brdp->iobase + ONB_ATCONFR));
3616 /*****************************************************************************/
3619 * The following routines act on ONboard EISA.
3622 static void stli_onbeinit(stlibrd_t *brdp)
3624 unsigned long memconf;
3627 printk(KERN_DEBUG "stli_onbeinit(brdp=%d)\n", (int) brdp);
3630 outb(0x1, (brdp->iobase + ONB_EIBRDENAB));
3631 outb(ONB_EISTOP, (brdp->iobase + ONB_EICONFR));
3633 outb(ONB_EIDISABLE, (brdp->iobase + ONB_EICONFR));
3636 memconf = (brdp->memaddr & ONB_EIADDRMASKL) >> ONB_EIADDRSHFTL;
3637 outb(memconf, (brdp->iobase + ONB_EIMEMARL));
3638 memconf = (brdp->memaddr & ONB_EIADDRMASKH) >> ONB_EIADDRSHFTH;
3639 outb(memconf, (brdp->iobase + ONB_EIMEMARH));
3640 outb(0x1, brdp->iobase);
3644 /*****************************************************************************/
3646 static void stli_onbeenable(stlibrd_t *brdp)
3649 printk(KERN_DEBUG "stli_onbeenable(brdp=%x)\n", (int) brdp);
3651 outb(ONB_EIENABLE, (brdp->iobase + ONB_EICONFR));
3654 /*****************************************************************************/
3656 static void stli_onbedisable(stlibrd_t *brdp)
3659 printk(KERN_DEBUG "stli_onbedisable(brdp=%x)\n", (int) brdp);
3661 outb(ONB_EIDISABLE, (brdp->iobase + ONB_EICONFR));
3664 /*****************************************************************************/
3666 static char *stli_onbegetmemptr(stlibrd_t *brdp, unsigned long offset, int line)
3672 printk(KERN_DEBUG "stli_onbegetmemptr(brdp=%x,offset=%x,line=%d)\n",
3673 (int) brdp, (int) offset, line);
3676 if (offset > brdp->memsize) {
3677 printk(KERN_ERR "STALLION: shared memory pointer=%x out of "
3678 "range at line=%d(%d), brd=%d\n",
3679 (int) offset, line, __LINE__, brdp->brdnr);
3683 ptr = brdp->membase + (offset % ONB_EIPAGESIZE);
3684 if (offset < ONB_EIPAGESIZE)
3687 val = ONB_EIENABLE | 0x40;
3689 outb(val, (brdp->iobase + ONB_EICONFR));
3693 /*****************************************************************************/
3695 static void stli_onbereset(stlibrd_t *brdp)
3699 printk(KERN_ERR "stli_onbereset(brdp=%x)\n", (int) brdp);
3702 outb(ONB_EISTOP, (brdp->iobase + ONB_EICONFR));
3704 outb(ONB_EIDISABLE, (brdp->iobase + ONB_EICONFR));
3708 /*****************************************************************************/
3711 * The following routines act on Brumby boards.
3714 static void stli_bbyinit(stlibrd_t *brdp)
3718 printk(KERN_ERR "stli_bbyinit(brdp=%d)\n", (int) brdp);
3721 outb(BBY_ATSTOP, (brdp->iobase + BBY_ATCONFR));
3723 outb(0, (brdp->iobase + BBY_ATCONFR));
3725 outb(0x1, brdp->iobase);
3729 /*****************************************************************************/
3731 static char *stli_bbygetmemptr(stlibrd_t *brdp, unsigned long offset, int line)
3737 printk(KERN_ERR "stli_bbygetmemptr(brdp=%x,offset=%x)\n", (int) brdp,
3741 if (offset > brdp->memsize) {
3742 printk(KERN_ERR "STALLION: shared memory pointer=%x out of "
3743 "range at line=%d(%d), brd=%d\n",
3744 (int) offset, line, __LINE__, brdp->brdnr);
3748 ptr = brdp->membase + (offset % BBY_PAGESIZE);
3749 val = (unsigned char) (offset / BBY_PAGESIZE);
3751 outb(val, (brdp->iobase + BBY_ATCONFR));
3755 /*****************************************************************************/
3757 static void stli_bbyreset(stlibrd_t *brdp)
3761 printk(KERN_DEBUG "stli_bbyreset(brdp=%x)\n", (int) brdp);
3764 outb(BBY_ATSTOP, (brdp->iobase + BBY_ATCONFR));
3766 outb(0, (brdp->iobase + BBY_ATCONFR));
3770 /*****************************************************************************/
3773 * The following routines act on original old Stallion boards.
3776 static void stli_stalinit(stlibrd_t *brdp)
3780 printk(KERN_DEBUG "stli_stalinit(brdp=%d)\n", (int) brdp);
3783 outb(0x1, brdp->iobase);
3787 /*****************************************************************************/
3789 static char *stli_stalgetmemptr(stlibrd_t *brdp, unsigned long offset, int line)
3794 printk(KERN_DEBUG "stli_stalgetmemptr(brdp=%x,offset=%x)\n", (int) brdp,
3798 if (offset > brdp->memsize) {
3799 printk(KERN_ERR "STALLION: shared memory pointer=%x out of "
3800 "range at line=%d(%d), brd=%d\n",
3801 (int) offset, line, __LINE__, brdp->brdnr);
3804 ptr = brdp->membase + (offset % STAL_PAGESIZE);
3809 /*****************************************************************************/
3811 static void stli_stalreset(stlibrd_t *brdp)
3813 volatile unsigned long *vecp;
3816 printk(KERN_DEBUG "stli_stalreset(brdp=%x)\n", (int) brdp);
3819 vecp = (volatile unsigned long *) (brdp->membase + 0x30);
3821 outb(0, brdp->iobase);
3825 /*****************************************************************************/
3828 * Try to find an ECP board and initialize it. This handles only ECP
3832 static int stli_initecp(stlibrd_t *brdp)
3836 unsigned int status, nxtid;
3838 int panelnr, nrports;
3841 printk(KERN_DEBUG "stli_initecp(brdp=%x)\n", (int) brdp);
3844 if (!request_region(brdp->iobase, brdp->iosize, "istallion"))
3847 if ((brdp->iobase == 0) || (brdp->memaddr == 0))
3849 release_region(brdp->iobase, brdp->iosize);
3853 brdp->iosize = ECP_IOSIZE;
3856 * Based on the specific board type setup the common vars to access
3857 * and enable shared memory. Set all board specific information now
3860 switch (brdp->brdtype) {
3862 brdp->membase = (void *) brdp->memaddr;
3863 brdp->memsize = ECP_MEMSIZE;
3864 brdp->pagesize = ECP_ATPAGESIZE;
3865 brdp->init = stli_ecpinit;
3866 brdp->enable = stli_ecpenable;
3867 brdp->reenable = stli_ecpenable;
3868 brdp->disable = stli_ecpdisable;
3869 brdp->getmemptr = stli_ecpgetmemptr;
3870 brdp->intr = stli_ecpintr;
3871 brdp->reset = stli_ecpreset;
3872 name = "serial(EC8/64)";
3876 brdp->membase = (void *) brdp->memaddr;
3877 brdp->memsize = ECP_MEMSIZE;
3878 brdp->pagesize = ECP_EIPAGESIZE;
3879 brdp->init = stli_ecpeiinit;
3880 brdp->enable = stli_ecpeienable;
3881 brdp->reenable = stli_ecpeienable;
3882 brdp->disable = stli_ecpeidisable;
3883 brdp->getmemptr = stli_ecpeigetmemptr;
3884 brdp->intr = stli_ecpintr;
3885 brdp->reset = stli_ecpeireset;
3886 name = "serial(EC8/64-EI)";
3890 brdp->membase = (void *) brdp->memaddr;
3891 brdp->memsize = ECP_MEMSIZE;
3892 brdp->pagesize = ECP_MCPAGESIZE;
3894 brdp->enable = stli_ecpmcenable;
3895 brdp->reenable = stli_ecpmcenable;
3896 brdp->disable = stli_ecpmcdisable;
3897 brdp->getmemptr = stli_ecpmcgetmemptr;
3898 brdp->intr = stli_ecpintr;
3899 brdp->reset = stli_ecpmcreset;
3900 name = "serial(EC8/64-MCA)";
3904 brdp->membase = (void *) brdp->memaddr;
3905 brdp->memsize = ECP_PCIMEMSIZE;
3906 brdp->pagesize = ECP_PCIPAGESIZE;
3907 brdp->init = stli_ecppciinit;
3908 brdp->enable = NULL;
3909 brdp->reenable = NULL;
3910 brdp->disable = NULL;
3911 brdp->getmemptr = stli_ecppcigetmemptr;
3912 brdp->intr = stli_ecpintr;
3913 brdp->reset = stli_ecppcireset;
3914 name = "serial(EC/RA-PCI)";
3918 release_region(brdp->iobase, brdp->iosize);
3923 * The per-board operations structure is all set up, so now let's go
3924 * and get the board operational. Firstly initialize board configuration
3925 * registers. Set the memory mapping info so we can get at the boards
3930 brdp->membase = ioremap(brdp->memaddr, brdp->memsize);
3931 if (brdp->membase == (void *) NULL)
3933 release_region(brdp->iobase, brdp->iosize);
3938 * Now that all specific code is set up, enable the shared memory and
3939 * look for the a signature area that will tell us exactly what board
3940 * this is, and what it is connected to it.
3943 sigsp = (cdkecpsig_t *) EBRDGETMEMPTR(brdp, CDK_SIGADDR);
3944 memcpy(&sig, sigsp, sizeof(cdkecpsig_t));
3948 printk("%s(%d): sig-> magic=%x rom=%x panel=%x,%x,%x,%x,%x,%x,%x,%x\n",
3949 __FILE__, __LINE__, (int) sig.magic, sig.romver, sig.panelid[0],
3950 (int) sig.panelid[1], (int) sig.panelid[2],
3951 (int) sig.panelid[3], (int) sig.panelid[4],
3952 (int) sig.panelid[5], (int) sig.panelid[6],
3953 (int) sig.panelid[7]);
3956 if (sig.magic != ECP_MAGIC)
3958 release_region(brdp->iobase, brdp->iosize);
3963 * Scan through the signature looking at the panels connected to the
3964 * board. Calculate the total number of ports as we go.
3966 for (panelnr = 0, nxtid = 0; (panelnr < STL_MAXPANELS); panelnr++) {
3967 status = sig.panelid[nxtid];
3968 if ((status & ECH_PNLIDMASK) != nxtid)
3971 brdp->panelids[panelnr] = status;
3972 nrports = (status & ECH_PNL16PORT) ? 16 : 8;
3973 if ((nrports == 16) && ((status & ECH_PNLXPID) == 0))
3975 brdp->panels[panelnr] = nrports;
3976 brdp->nrports += nrports;
3982 brdp->state |= BST_FOUND;
3986 /*****************************************************************************/
3989 * Try to find an ONboard, Brumby or Stallion board and initialize it.
3990 * This handles only these board types.
3993 static int stli_initonb(stlibrd_t *brdp)
4001 printk(KERN_DEBUG "stli_initonb(brdp=%x)\n", (int) brdp);
4005 * Do a basic sanity check on the IO and memory addresses.
4007 if ((brdp->iobase == 0) || (brdp->memaddr == 0))
4010 brdp->iosize = ONB_IOSIZE;
4012 if (!request_region(brdp->iobase, brdp->iosize, "istallion"))
4016 * Based on the specific board type setup the common vars to access
4017 * and enable shared memory. Set all board specific information now
4020 switch (brdp->brdtype) {
4024 case BRD_ONBOARD2_32:
4026 brdp->membase = (void *) brdp->memaddr;
4027 brdp->memsize = ONB_MEMSIZE;
4028 brdp->pagesize = ONB_ATPAGESIZE;
4029 brdp->init = stli_onbinit;
4030 brdp->enable = stli_onbenable;
4031 brdp->reenable = stli_onbenable;
4032 brdp->disable = stli_onbdisable;
4033 brdp->getmemptr = stli_onbgetmemptr;
4034 brdp->intr = stli_ecpintr;
4035 brdp->reset = stli_onbreset;
4036 if (brdp->memaddr > 0x100000)
4037 brdp->enabval = ONB_MEMENABHI;
4039 brdp->enabval = ONB_MEMENABLO;
4040 name = "serial(ONBoard)";
4044 brdp->membase = (void *) brdp->memaddr;
4045 brdp->memsize = ONB_EIMEMSIZE;
4046 brdp->pagesize = ONB_EIPAGESIZE;
4047 brdp->init = stli_onbeinit;
4048 brdp->enable = stli_onbeenable;
4049 brdp->reenable = stli_onbeenable;
4050 brdp->disable = stli_onbedisable;
4051 brdp->getmemptr = stli_onbegetmemptr;
4052 brdp->intr = stli_ecpintr;
4053 brdp->reset = stli_onbereset;
4054 name = "serial(ONBoard/E)";
4060 brdp->membase = (void *) brdp->memaddr;
4061 brdp->memsize = BBY_MEMSIZE;
4062 brdp->pagesize = BBY_PAGESIZE;
4063 brdp->init = stli_bbyinit;
4064 brdp->enable = NULL;
4065 brdp->reenable = NULL;
4066 brdp->disable = NULL;
4067 brdp->getmemptr = stli_bbygetmemptr;
4068 brdp->intr = stli_ecpintr;
4069 brdp->reset = stli_bbyreset;
4070 name = "serial(Brumby)";
4074 brdp->membase = (void *) brdp->memaddr;
4075 brdp->memsize = STAL_MEMSIZE;
4076 brdp->pagesize = STAL_PAGESIZE;
4077 brdp->init = stli_stalinit;
4078 brdp->enable = NULL;
4079 brdp->reenable = NULL;
4080 brdp->disable = NULL;
4081 brdp->getmemptr = stli_stalgetmemptr;
4082 brdp->intr = stli_ecpintr;
4083 brdp->reset = stli_stalreset;
4084 name = "serial(Stallion)";
4088 release_region(brdp->iobase, brdp->iosize);
4093 * The per-board operations structure is all set up, so now let's go
4094 * and get the board operational. Firstly initialize board configuration
4095 * registers. Set the memory mapping info so we can get at the boards
4100 brdp->membase = ioremap(brdp->memaddr, brdp->memsize);
4101 if (brdp->membase == (void *) NULL)
4103 release_region(brdp->iobase, brdp->iosize);
4108 * Now that all specific code is set up, enable the shared memory and
4109 * look for the a signature area that will tell us exactly what board
4110 * this is, and how many ports.
4113 sigsp = (cdkonbsig_t *) EBRDGETMEMPTR(brdp, CDK_SIGADDR);
4114 memcpy(&sig, sigsp, sizeof(cdkonbsig_t));
4118 printk("%s(%d): sig-> magic=%x:%x:%x:%x romver=%x amask=%x:%x:%x\n",
4119 __FILE__, __LINE__, sig.magic0, sig.magic1, sig.magic2,
4120 sig.magic3, sig.romver, sig.amask0, sig.amask1, sig.amask2);
4123 if ((sig.magic0 != ONB_MAGIC0) || (sig.magic1 != ONB_MAGIC1) ||
4124 (sig.magic2 != ONB_MAGIC2) || (sig.magic3 != ONB_MAGIC3))
4126 release_region(brdp->iobase, brdp->iosize);
4131 * Scan through the signature alive mask and calculate how many ports
4132 * there are on this board.
4138 for (i = 0; (i < 16); i++) {
4139 if (((sig.amask0 << i) & 0x8000) == 0)
4144 brdp->panels[0] = brdp->nrports;
4147 brdp->state |= BST_FOUND;
4151 /*****************************************************************************/
4154 * Start up a running board. This routine is only called after the
4155 * code has been down loaded to the board and is operational. It will
4156 * read in the memory map, and get the show on the road...
4159 static int stli_startbrd(stlibrd_t *brdp)
4161 volatile cdkhdr_t *hdrp;
4162 volatile cdkmem_t *memp;
4163 volatile cdkasy_t *ap;
4164 unsigned long flags;
4166 int portnr, nrdevs, i, rc;
4169 printk(KERN_DEBUG "stli_startbrd(brdp=%x)\n", (int) brdp);
4177 hdrp = (volatile cdkhdr_t *) EBRDGETMEMPTR(brdp, CDK_CDKADDR);
4178 nrdevs = hdrp->nrdevs;
4181 printk("%s(%d): CDK version %d.%d.%d --> "
4182 "nrdevs=%d memp=%x hostp=%x slavep=%x\n",
4183 __FILE__, __LINE__, hdrp->ver_release, hdrp->ver_modification,
4184 hdrp->ver_fix, nrdevs, (int) hdrp->memp, (int) hdrp->hostp,
4185 (int) hdrp->slavep);
4188 if (nrdevs < (brdp->nrports + 1)) {
4189 printk(KERN_ERR "STALLION: slave failed to allocate memory for "
4190 "all devices, devices=%d\n", nrdevs);
4191 brdp->nrports = nrdevs - 1;
4193 brdp->nrdevs = nrdevs;
4194 brdp->hostoffset = hdrp->hostp - CDK_CDKADDR;
4195 brdp->slaveoffset = hdrp->slavep - CDK_CDKADDR;
4196 brdp->bitsize = (nrdevs + 7) / 8;
4197 memp = (volatile cdkmem_t *) hdrp->memp;
4198 if (((unsigned long) memp) > brdp->memsize) {
4199 printk(KERN_ERR "STALLION: corrupted shared memory region?\n");
4201 goto stli_donestartup;
4203 memp = (volatile cdkmem_t *) EBRDGETMEMPTR(brdp, (unsigned long) memp);
4204 if (memp->dtype != TYP_ASYNCTRL) {
4205 printk(KERN_ERR "STALLION: no slave control device found\n");
4206 goto stli_donestartup;
4211 * Cycle through memory allocation of each port. We are guaranteed to
4212 * have all ports inside the first page of slave window, so no need to
4213 * change pages while reading memory map.
4215 for (i = 1, portnr = 0; (i < nrdevs); i++, portnr++, memp++) {
4216 if (memp->dtype != TYP_ASYNC)
4218 portp = brdp->ports[portnr];
4219 if (portp == (stliport_t *) NULL)
4222 portp->addr = memp->offset;
4223 portp->reqbit = (unsigned char) (0x1 << (i * 8 / nrdevs));
4224 portp->portidx = (unsigned char) (i / 8);
4225 portp->portbit = (unsigned char) (0x1 << (i % 8));
4228 hdrp->slavereq = 0xff;
4231 * For each port setup a local copy of the RX and TX buffer offsets
4232 * and sizes. We do this separate from the above, because we need to
4233 * move the shared memory page...
4235 for (i = 1, portnr = 0; (i < nrdevs); i++, portnr++) {
4236 portp = brdp->ports[portnr];
4237 if (portp == (stliport_t *) NULL)
4239 if (portp->addr == 0)
4241 ap = (volatile cdkasy_t *) EBRDGETMEMPTR(brdp, portp->addr);
4242 if (ap != (volatile cdkasy_t *) NULL) {
4243 portp->rxsize = ap->rxq.size;
4244 portp->txsize = ap->txq.size;
4245 portp->rxoffset = ap->rxq.offset;
4246 portp->txoffset = ap->txq.offset;
4252 restore_flags(flags);
4255 brdp->state |= BST_STARTED;
4257 if (! stli_timeron) {
4259 stli_timerlist.expires = STLI_TIMEOUT;
4260 add_timer(&stli_timerlist);
4266 /*****************************************************************************/
4269 * Probe and initialize the specified board.
4272 static int __init stli_brdinit(stlibrd_t *brdp)
4275 printk(KERN_DEBUG "stli_brdinit(brdp=%x)\n", (int) brdp);
4278 stli_brds[brdp->brdnr] = brdp;
4280 switch (brdp->brdtype) {
4291 case BRD_ONBOARD2_32:
4303 printk(KERN_ERR "STALLION: %s board type not supported in "
4304 "this driver\n", stli_brdnames[brdp->brdtype]);
4307 printk(KERN_ERR "STALLION: board=%d is unknown board "
4308 "type=%d\n", brdp->brdnr, brdp->brdtype);
4312 if ((brdp->state & BST_FOUND) == 0) {
4313 printk(KERN_ERR "STALLION: %s board not found, board=%d "
4315 stli_brdnames[brdp->brdtype], brdp->brdnr,
4316 brdp->iobase, (int) brdp->memaddr);
4320 stli_initports(brdp);
4321 printk(KERN_INFO "STALLION: %s found, board=%d io=%x mem=%x "
4322 "nrpanels=%d nrports=%d\n", stli_brdnames[brdp->brdtype],
4323 brdp->brdnr, brdp->iobase, (int) brdp->memaddr,
4324 brdp->nrpanels, brdp->nrports);
4328 /*****************************************************************************/
4331 * Probe around trying to find where the EISA boards shared memory
4332 * might be. This is a bit if hack, but it is the best we can do.
4335 static int stli_eisamemprobe(stlibrd_t *brdp)
4337 cdkecpsig_t ecpsig, *ecpsigp;
4338 cdkonbsig_t onbsig, *onbsigp;
4342 printk(KERN_DEBUG "stli_eisamemprobe(brdp=%x)\n", (int) brdp);
4346 * First up we reset the board, to get it into a known state. There
4347 * is only 2 board types here we need to worry about. Don;t use the
4348 * standard board init routine here, it programs up the shared
4349 * memory address, and we don't know it yet...
4351 if (brdp->brdtype == BRD_ECPE) {
4352 outb(0x1, (brdp->iobase + ECP_EIBRDENAB));
4353 outb(ECP_EISTOP, (brdp->iobase + ECP_EICONFR));
4355 outb(ECP_EIDISABLE, (brdp->iobase + ECP_EICONFR));
4357 stli_ecpeienable(brdp);
4358 } else if (brdp->brdtype == BRD_ONBOARDE) {
4359 outb(0x1, (brdp->iobase + ONB_EIBRDENAB));
4360 outb(ONB_EISTOP, (brdp->iobase + ONB_EICONFR));
4362 outb(ONB_EIDISABLE, (brdp->iobase + ONB_EICONFR));
4364 outb(0x1, brdp->iobase);
4366 stli_onbeenable(brdp);
4372 brdp->memsize = ECP_MEMSIZE;
4375 * Board shared memory is enabled, so now we have a poke around and
4376 * see if we can find it.
4378 for (i = 0; (i < stli_eisamempsize); i++) {
4379 brdp->memaddr = stli_eisamemprobeaddrs[i];
4380 brdp->membase = (void *) brdp->memaddr;
4381 brdp->membase = ioremap(brdp->memaddr, brdp->memsize);
4382 if (brdp->membase == (void *) NULL)
4385 if (brdp->brdtype == BRD_ECPE) {
4386 ecpsigp = (cdkecpsig_t *) stli_ecpeigetmemptr(brdp,
4387 CDK_SIGADDR, __LINE__);
4388 memcpy(&ecpsig, ecpsigp, sizeof(cdkecpsig_t));
4389 if (ecpsig.magic == ECP_MAGIC)
4392 onbsigp = (cdkonbsig_t *) stli_onbegetmemptr(brdp,
4393 CDK_SIGADDR, __LINE__);
4394 memcpy(&onbsig, onbsigp, sizeof(cdkonbsig_t));
4395 if ((onbsig.magic0 == ONB_MAGIC0) &&
4396 (onbsig.magic1 == ONB_MAGIC1) &&
4397 (onbsig.magic2 == ONB_MAGIC2) &&
4398 (onbsig.magic3 == ONB_MAGIC3))
4402 iounmap(brdp->membase);
4408 * Regardless of whether we found the shared memory or not we must
4409 * disable the region. After that return success or failure.
4411 if (brdp->brdtype == BRD_ECPE)
4412 stli_ecpeidisable(brdp);
4414 stli_onbedisable(brdp);
4418 brdp->membase = NULL;
4419 printk(KERN_ERR "STALLION: failed to probe shared memory "
4420 "region for %s in EISA slot=%d\n",
4421 stli_brdnames[brdp->brdtype], (brdp->iobase >> 12));
4427 static int stli_getbrdnr(void)
4431 for (i = 0; i < STL_MAXBRDS; i++) {
4432 if (!stli_brds[i]) {
4433 if (i >= stli_nrbrds)
4434 stli_nrbrds = i + 1;
4441 /*****************************************************************************/
4444 * Probe around and try to find any EISA boards in system. The biggest
4445 * problem here is finding out what memory address is associated with
4446 * an EISA board after it is found. The registers of the ECPE and
4447 * ONboardE are not readable - so we can't read them from there. We
4448 * don't have access to the EISA CMOS (or EISA BIOS) so we don't
4449 * actually have any way to find out the real value. The best we can
4450 * do is go probing around in the usual places hoping we can find it.
4453 static int stli_findeisabrds(void)
4456 unsigned int iobase, eid;
4460 printk(KERN_DEBUG "stli_findeisabrds()\n");
4464 * Firstly check if this is an EISA system. Do this by probing for
4465 * the system board EISA ID. If this is not an EISA system then
4466 * don't bother going any further!
4469 if (inb(0xc80) == 0xff)
4473 * Looks like an EISA system, so go searching for EISA boards.
4475 for (iobase = 0x1000; (iobase <= 0xc000); iobase += 0x1000) {
4476 outb(0xff, (iobase + 0xc80));
4477 eid = inb(iobase + 0xc80);
4478 eid |= inb(iobase + 0xc81) << 8;
4479 if (eid != STL_EISAID)
4483 * We have found a board. Need to check if this board was
4484 * statically configured already (just in case!).
4486 for (i = 0; (i < STL_MAXBRDS); i++) {
4487 brdp = stli_brds[i];
4488 if (brdp == (stlibrd_t *) NULL)
4490 if (brdp->iobase == iobase)
4493 if (i < STL_MAXBRDS)
4497 * We have found a Stallion board and it is not configured already.
4498 * Allocate a board structure and initialize it.
4500 if ((brdp = stli_allocbrd()) == (stlibrd_t *) NULL)
4502 if ((brdp->brdnr = stli_getbrdnr()) < 0)
4504 eid = inb(iobase + 0xc82);
4505 if (eid == ECP_EISAID)
4506 brdp->brdtype = BRD_ECPE;
4507 else if (eid == ONB_EISAID)
4508 brdp->brdtype = BRD_ONBOARDE;
4510 brdp->brdtype = BRD_UNKNOWN;
4511 brdp->iobase = iobase;
4512 outb(0x1, (iobase + 0xc84));
4513 if (stli_eisamemprobe(brdp))
4514 outb(0, (iobase + 0xc84));
4521 /*****************************************************************************/
4524 * Find the next available board number that is free.
4527 /*****************************************************************************/
4532 * We have a Stallion board. Allocate a board structure and
4533 * initialize it. Read its IO and MEMORY resources from PCI
4534 * configuration space.
4537 static int stli_initpcibrd(int brdtype, struct pci_dev *devp)
4542 printk(KERN_DEBUG "stli_initpcibrd(brdtype=%d,busnr=%x,devnr=%x)\n",
4543 brdtype, dev->bus->number, dev->devfn);
4546 if (pci_enable_device(devp))
4548 if ((brdp = stli_allocbrd()) == (stlibrd_t *) NULL)
4550 if ((brdp->brdnr = stli_getbrdnr()) < 0) {
4551 printk(KERN_INFO "STALLION: too many boards found, "
4552 "maximum supported %d\n", STL_MAXBRDS);
4555 brdp->brdtype = brdtype;
4558 printk(KERN_DEBUG "%s(%d): BAR[]=%lx,%lx,%lx,%lx\n", __FILE__, __LINE__,
4559 pci_resource_start(devp, 0),
4560 pci_resource_start(devp, 1),
4561 pci_resource_start(devp, 2),
4562 pci_resource_start(devp, 3));
4566 * We have all resources from the board, so lets setup the actual
4567 * board structure now.
4569 brdp->iobase = pci_resource_start(devp, 3);
4570 brdp->memaddr = pci_resource_start(devp, 2);
4576 /*****************************************************************************/
4579 * Find all Stallion PCI boards that might be installed. Initialize each
4580 * one as it is found.
4583 static int stli_findpcibrds(void)
4585 struct pci_dev *dev = NULL;
4589 printk("stli_findpcibrds()\n");
4592 while ((dev = pci_find_device(PCI_VENDOR_ID_STALLION,
4593 PCI_DEVICE_ID_ECRA, dev))) {
4594 if ((rc = stli_initpcibrd(BRD_ECPPCI, dev)))
4603 /*****************************************************************************/
4606 * Allocate a new board structure. Fill out the basic info in it.
4609 static stlibrd_t *stli_allocbrd(void)
4613 brdp = (stlibrd_t *) stli_memalloc(sizeof(stlibrd_t));
4614 if (brdp == (stlibrd_t *) NULL) {
4615 printk(KERN_ERR "STALLION: failed to allocate memory "
4616 "(size=%d)\n", sizeof(stlibrd_t));
4617 return((stlibrd_t *) NULL);
4620 memset(brdp, 0, sizeof(stlibrd_t));
4621 brdp->magic = STLI_BOARDMAGIC;
4625 /*****************************************************************************/
4628 * Scan through all the boards in the configuration and see what we
4632 static int stli_initbrds(void)
4634 stlibrd_t *brdp, *nxtbrdp;
4639 printk(KERN_DEBUG "stli_initbrds()\n");
4642 if (stli_nrbrds > STL_MAXBRDS) {
4643 printk(KERN_INFO "STALLION: too many boards in configuration "
4644 "table, truncating to %d\n", STL_MAXBRDS);
4645 stli_nrbrds = STL_MAXBRDS;
4649 * Firstly scan the list of static boards configured. Allocate
4650 * resources and initialize the boards as found. If this is a
4651 * module then let the module args override static configuration.
4653 for (i = 0; (i < stli_nrbrds); i++) {
4654 confp = &stli_brdconf[i];
4656 stli_parsebrd(confp, stli_brdsp[i]);
4658 if ((brdp = stli_allocbrd()) == (stlibrd_t *) NULL)
4661 brdp->brdtype = confp->brdtype;
4662 brdp->iobase = confp->ioaddr1;
4663 brdp->memaddr = confp->memaddr;
4668 * Static configuration table done, so now use dynamic methods to
4669 * see if any more boards should be configured.
4675 stli_findeisabrds();
4681 * All found boards are initialized. Now for a little optimization, if
4682 * no boards are sharing the "shared memory" regions then we can just
4683 * leave them all enabled. This is in fact the usual case.
4686 if (stli_nrbrds > 1) {
4687 for (i = 0; (i < stli_nrbrds); i++) {
4688 brdp = stli_brds[i];
4689 if (brdp == (stlibrd_t *) NULL)
4691 for (j = i + 1; (j < stli_nrbrds); j++) {
4692 nxtbrdp = stli_brds[j];
4693 if (nxtbrdp == (stlibrd_t *) NULL)
4695 if ((brdp->membase >= nxtbrdp->membase) &&
4696 (brdp->membase <= (nxtbrdp->membase +
4697 nxtbrdp->memsize - 1))) {
4705 if (stli_shared == 0) {
4706 for (i = 0; (i < stli_nrbrds); i++) {
4707 brdp = stli_brds[i];
4708 if (brdp == (stlibrd_t *) NULL)
4710 if (brdp->state & BST_FOUND) {
4712 brdp->enable = NULL;
4713 brdp->disable = NULL;
4721 /*****************************************************************************/
4724 * Code to handle an "staliomem" read operation. This device is the
4725 * contents of the board shared memory. It is used for down loading
4726 * the slave image (and debugging :-)
4729 static ssize_t stli_memread(struct file *fp, char __user *buf, size_t count, loff_t *offp)
4731 unsigned long flags;
4737 printk(KERN_DEBUG "stli_memread(fp=%x,buf=%x,count=%x,offp=%x)\n",
4738 (int) fp, (int) buf, count, (int) offp);
4741 brdnr = iminor(fp->f_dentry->d_inode);
4742 if (brdnr >= stli_nrbrds)
4744 brdp = stli_brds[brdnr];
4745 if (brdp == (stlibrd_t *) NULL)
4747 if (brdp->state == 0)
4749 if (fp->f_pos >= brdp->memsize)
4752 size = MIN(count, (brdp->memsize - fp->f_pos));
4758 memptr = (void *) EBRDGETMEMPTR(brdp, fp->f_pos);
4759 n = MIN(size, (brdp->pagesize - (((unsigned long) fp->f_pos) % brdp->pagesize)));
4760 if (copy_to_user(buf, memptr, n)) {
4770 restore_flags(flags);
4775 /*****************************************************************************/
4778 * Code to handle an "staliomem" write operation. This device is the
4779 * contents of the board shared memory. It is used for down loading
4780 * the slave image (and debugging :-)
4783 static ssize_t stli_memwrite(struct file *fp, const char __user *buf, size_t count, loff_t *offp)
4785 unsigned long flags;
4792 printk(KERN_DEBUG "stli_memwrite(fp=%x,buf=%x,count=%x,offp=%x)\n",
4793 (int) fp, (int) buf, count, (int) offp);
4796 brdnr = iminor(fp->f_dentry->d_inode);
4797 if (brdnr >= stli_nrbrds)
4799 brdp = stli_brds[brdnr];
4800 if (brdp == (stlibrd_t *) NULL)
4802 if (brdp->state == 0)
4804 if (fp->f_pos >= brdp->memsize)
4807 chbuf = (char __user *) buf;
4808 size = MIN(count, (brdp->memsize - fp->f_pos));
4814 memptr = (void *) EBRDGETMEMPTR(brdp, fp->f_pos);
4815 n = MIN(size, (brdp->pagesize - (((unsigned long) fp->f_pos) % brdp->pagesize)));
4816 if (copy_from_user(memptr, chbuf, n)) {
4826 restore_flags(flags);
4831 /*****************************************************************************/
4834 * Return the board stats structure to user app.
4837 static int stli_getbrdstats(combrd_t __user *bp)
4842 if (copy_from_user(&stli_brdstats, bp, sizeof(combrd_t)))
4844 if (stli_brdstats.brd >= STL_MAXBRDS)
4846 brdp = stli_brds[stli_brdstats.brd];
4847 if (brdp == (stlibrd_t *) NULL)
4850 memset(&stli_brdstats, 0, sizeof(combrd_t));
4851 stli_brdstats.brd = brdp->brdnr;
4852 stli_brdstats.type = brdp->brdtype;
4853 stli_brdstats.hwid = 0;
4854 stli_brdstats.state = brdp->state;
4855 stli_brdstats.ioaddr = brdp->iobase;
4856 stli_brdstats.memaddr = brdp->memaddr;
4857 stli_brdstats.nrpanels = brdp->nrpanels;
4858 stli_brdstats.nrports = brdp->nrports;
4859 for (i = 0; (i < brdp->nrpanels); i++) {
4860 stli_brdstats.panels[i].panel = i;
4861 stli_brdstats.panels[i].hwid = brdp->panelids[i];
4862 stli_brdstats.panels[i].nrports = brdp->panels[i];
4865 if (copy_to_user(bp, &stli_brdstats, sizeof(combrd_t)))
4870 /*****************************************************************************/
4873 * Resolve the referenced port number into a port struct pointer.
4876 static stliport_t *stli_getport(int brdnr, int panelnr, int portnr)
4881 if ((brdnr < 0) || (brdnr >= STL_MAXBRDS))
4882 return((stliport_t *) NULL);
4883 brdp = stli_brds[brdnr];
4884 if (brdp == (stlibrd_t *) NULL)
4885 return((stliport_t *) NULL);
4886 for (i = 0; (i < panelnr); i++)
4887 portnr += brdp->panels[i];
4888 if ((portnr < 0) || (portnr >= brdp->nrports))
4889 return((stliport_t *) NULL);
4890 return(brdp->ports[portnr]);
4893 /*****************************************************************************/
4896 * Return the port stats structure to user app. A NULL port struct
4897 * pointer passed in means that we need to find out from the app
4898 * what port to get stats for (used through board control device).
4901 static int stli_portcmdstats(stliport_t *portp)
4903 unsigned long flags;
4907 memset(&stli_comstats, 0, sizeof(comstats_t));
4909 if (portp == (stliport_t *) NULL)
4911 brdp = stli_brds[portp->brdnr];
4912 if (brdp == (stlibrd_t *) NULL)
4915 if (brdp->state & BST_STARTED) {
4916 if ((rc = stli_cmdwait(brdp, portp, A_GETSTATS,
4917 &stli_cdkstats, sizeof(asystats_t), 1)) < 0)
4920 memset(&stli_cdkstats, 0, sizeof(asystats_t));
4923 stli_comstats.brd = portp->brdnr;
4924 stli_comstats.panel = portp->panelnr;
4925 stli_comstats.port = portp->portnr;
4926 stli_comstats.state = portp->state;
4927 stli_comstats.flags = portp->flags;
4931 if (portp->tty != (struct tty_struct *) NULL) {
4932 if (portp->tty->driver_data == portp) {
4933 stli_comstats.ttystate = portp->tty->flags;
4934 stli_comstats.rxbuffered = -1 /*portp->tty->flip.count*/;
4935 if (portp->tty->termios != (struct termios *) NULL) {
4936 stli_comstats.cflags = portp->tty->termios->c_cflag;
4937 stli_comstats.iflags = portp->tty->termios->c_iflag;
4938 stli_comstats.oflags = portp->tty->termios->c_oflag;
4939 stli_comstats.lflags = portp->tty->termios->c_lflag;
4943 restore_flags(flags);
4945 stli_comstats.txtotal = stli_cdkstats.txchars;
4946 stli_comstats.rxtotal = stli_cdkstats.rxchars + stli_cdkstats.ringover;
4947 stli_comstats.txbuffered = stli_cdkstats.txringq;
4948 stli_comstats.rxbuffered += stli_cdkstats.rxringq;
4949 stli_comstats.rxoverrun = stli_cdkstats.overruns;
4950 stli_comstats.rxparity = stli_cdkstats.parity;
4951 stli_comstats.rxframing = stli_cdkstats.framing;
4952 stli_comstats.rxlost = stli_cdkstats.ringover;
4953 stli_comstats.rxbreaks = stli_cdkstats.rxbreaks;
4954 stli_comstats.txbreaks = stli_cdkstats.txbreaks;
4955 stli_comstats.txxon = stli_cdkstats.txstart;
4956 stli_comstats.txxoff = stli_cdkstats.txstop;
4957 stli_comstats.rxxon = stli_cdkstats.rxstart;
4958 stli_comstats.rxxoff = stli_cdkstats.rxstop;
4959 stli_comstats.rxrtsoff = stli_cdkstats.rtscnt / 2;
4960 stli_comstats.rxrtson = stli_cdkstats.rtscnt - stli_comstats.rxrtsoff;
4961 stli_comstats.modem = stli_cdkstats.dcdcnt;
4962 stli_comstats.hwid = stli_cdkstats.hwid;
4963 stli_comstats.signals = stli_mktiocm(stli_cdkstats.signals);
4968 /*****************************************************************************/
4971 * Return the port stats structure to user app. A NULL port struct
4972 * pointer passed in means that we need to find out from the app
4973 * what port to get stats for (used through board control device).
4976 static int stli_getportstats(stliport_t *portp, comstats_t __user *cp)
4982 if (copy_from_user(&stli_comstats, cp, sizeof(comstats_t)))
4984 portp = stli_getport(stli_comstats.brd, stli_comstats.panel,
4985 stli_comstats.port);
4990 brdp = stli_brds[portp->brdnr];
4994 if ((rc = stli_portcmdstats(portp)) < 0)
4997 return copy_to_user(cp, &stli_comstats, sizeof(comstats_t)) ?
5001 /*****************************************************************************/
5004 * Clear the port stats structure. We also return it zeroed out...
5007 static int stli_clrportstats(stliport_t *portp, comstats_t __user *cp)
5013 if (copy_from_user(&stli_comstats, cp, sizeof(comstats_t)))
5015 portp = stli_getport(stli_comstats.brd, stli_comstats.panel,
5016 stli_comstats.port);
5021 brdp = stli_brds[portp->brdnr];
5025 if (brdp->state & BST_STARTED) {
5026 if ((rc = stli_cmdwait(brdp, portp, A_CLEARSTATS, NULL, 0, 0)) < 0)
5030 memset(&stli_comstats, 0, sizeof(comstats_t));
5031 stli_comstats.brd = portp->brdnr;
5032 stli_comstats.panel = portp->panelnr;
5033 stli_comstats.port = portp->portnr;
5035 if (copy_to_user(cp, &stli_comstats, sizeof(comstats_t)))
5040 /*****************************************************************************/
5043 * Return the entire driver ports structure to a user app.
5046 static int stli_getportstruct(stliport_t __user *arg)
5050 if (copy_from_user(&stli_dummyport, arg, sizeof(stliport_t)))
5052 portp = stli_getport(stli_dummyport.brdnr, stli_dummyport.panelnr,
5053 stli_dummyport.portnr);
5056 if (copy_to_user(arg, portp, sizeof(stliport_t)))
5061 /*****************************************************************************/
5064 * Return the entire driver board structure to a user app.
5067 static int stli_getbrdstruct(stlibrd_t __user *arg)
5071 if (copy_from_user(&stli_dummybrd, arg, sizeof(stlibrd_t)))
5073 if ((stli_dummybrd.brdnr < 0) || (stli_dummybrd.brdnr >= STL_MAXBRDS))
5075 brdp = stli_brds[stli_dummybrd.brdnr];
5078 if (copy_to_user(arg, brdp, sizeof(stlibrd_t)))
5083 /*****************************************************************************/
5086 * The "staliomem" device is also required to do some special operations on
5087 * the board. We need to be able to send an interrupt to the board,
5088 * reset it, and start/stop it.
5091 static int stli_memioctl(struct inode *ip, struct file *fp, unsigned int cmd, unsigned long arg)
5094 int brdnr, rc, done;
5095 void __user *argp = (void __user *)arg;
5098 printk(KERN_DEBUG "stli_memioctl(ip=%x,fp=%x,cmd=%x,arg=%x)\n",
5099 (int) ip, (int) fp, cmd, (int) arg);
5103 * First up handle the board independent ioctls.
5109 case COM_GETPORTSTATS:
5110 rc = stli_getportstats(NULL, argp);
5113 case COM_CLRPORTSTATS:
5114 rc = stli_clrportstats(NULL, argp);
5117 case COM_GETBRDSTATS:
5118 rc = stli_getbrdstats(argp);
5122 rc = stli_getportstruct(argp);
5126 rc = stli_getbrdstruct(argp);
5135 * Now handle the board specific ioctls. These all depend on the
5136 * minor number of the device they were called from.
5139 if (brdnr >= STL_MAXBRDS)
5141 brdp = stli_brds[brdnr];
5144 if (brdp->state == 0)
5152 rc = stli_startbrd(brdp);
5155 brdp->state &= ~BST_STARTED;
5158 brdp->state &= ~BST_STARTED;
5160 if (stli_shared == 0) {
5161 if (brdp->reenable != NULL)
5162 (* brdp->reenable)(brdp);
5173 static struct tty_operations stli_ops = {
5175 .close = stli_close,
5176 .write = stli_write,
5177 .put_char = stli_putchar,
5178 .flush_chars = stli_flushchars,
5179 .write_room = stli_writeroom,
5180 .chars_in_buffer = stli_charsinbuffer,
5181 .ioctl = stli_ioctl,
5182 .set_termios = stli_settermios,
5183 .throttle = stli_throttle,
5184 .unthrottle = stli_unthrottle,
5186 .start = stli_start,
5187 .hangup = stli_hangup,
5188 .flush_buffer = stli_flushbuffer,
5189 .break_ctl = stli_breakctl,
5190 .wait_until_sent = stli_waituntilsent,
5191 .send_xchar = stli_sendxchar,
5192 .read_proc = stli_readproc,
5193 .tiocmget = stli_tiocmget,
5194 .tiocmset = stli_tiocmset,
5197 /*****************************************************************************/
5199 int __init stli_init(void)
5202 printk(KERN_INFO "%s: version %s\n", stli_drvtitle, stli_drvversion);
5206 stli_serial = alloc_tty_driver(STL_MAXBRDS * STL_MAXPORTS);
5211 * Allocate a temporary write buffer.
5213 stli_tmpwritebuf = (char *) stli_memalloc(STLI_TXBUFSIZE);
5214 if (stli_tmpwritebuf == (char *) NULL)
5215 printk(KERN_ERR "STALLION: failed to allocate memory "
5216 "(size=%d)\n", STLI_TXBUFSIZE);
5217 stli_txcookbuf = stli_memalloc(STLI_TXBUFSIZE);
5218 if (stli_txcookbuf == (char *) NULL)
5219 printk(KERN_ERR "STALLION: failed to allocate memory "
5220 "(size=%d)\n", STLI_TXBUFSIZE);
5223 * Set up a character driver for the shared memory region. We need this
5224 * to down load the slave code image. Also it is a useful debugging tool.
5226 if (register_chrdev(STL_SIOMEMMAJOR, "staliomem", &stli_fsiomem))
5227 printk(KERN_ERR "STALLION: failed to register serial memory "
5230 devfs_mk_dir("staliomem");
5231 istallion_class = class_create(THIS_MODULE, "staliomem");
5232 for (i = 0; i < 4; i++) {
5233 devfs_mk_cdev(MKDEV(STL_SIOMEMMAJOR, i),
5234 S_IFCHR | S_IRUSR | S_IWUSR,
5236 class_device_create(istallion_class, NULL,
5237 MKDEV(STL_SIOMEMMAJOR, i),
5238 NULL, "staliomem%d", i);
5242 * Set up the tty driver structure and register us as a driver.
5244 stli_serial->owner = THIS_MODULE;
5245 stli_serial->driver_name = stli_drvname;
5246 stli_serial->name = stli_serialname;
5247 stli_serial->major = STL_SERIALMAJOR;
5248 stli_serial->minor_start = 0;
5249 stli_serial->type = TTY_DRIVER_TYPE_SERIAL;
5250 stli_serial->subtype = SERIAL_TYPE_NORMAL;
5251 stli_serial->init_termios = stli_deftermios;
5252 stli_serial->flags = TTY_DRIVER_REAL_RAW;
5253 tty_set_operations(stli_serial, &stli_ops);
5255 if (tty_register_driver(stli_serial)) {
5256 put_tty_driver(stli_serial);
5257 printk(KERN_ERR "STALLION: failed to register serial driver\n");
5263 /*****************************************************************************/