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>
46 #include <asm/uaccess.h>
49 #include <linux/pci.h>
52 /*****************************************************************************/
55 * Define different board types. Not all of the following board types
56 * are supported by this driver. But I will use the standard "assigned"
57 * board numbers. Currently supported boards are abbreviated as:
58 * ECP = EasyConnection 8/64, ONB = ONboard, BBY = Brumby and
62 #define BRD_STALLION 1
64 #define BRD_ONBOARD2 3
67 #define BRD_BRUMBY16 6
68 #define BRD_ONBOARDE 7
69 #define BRD_ONBOARD32 9
70 #define BRD_ONBOARD2_32 10
71 #define BRD_ONBOARDRS 11
79 #define BRD_ECH64PCI 27
80 #define BRD_EASYIOPCI 28
83 #define BRD_BRUMBY BRD_BRUMBY4
86 * Define a configuration structure to hold the board configuration.
87 * Need to set this up in the code (for now) with the boards that are
88 * to be configured into the system. This is what needs to be modified
89 * when adding/removing/modifying boards. Each line entry in the
90 * stli_brdconf[] array is a board. Each line contains io/irq/memory
91 * ranges for that board (as well as what type of board it is).
93 * { BRD_ECP, 0x2a0, 0, 0xcc000, 0, 0 },
94 * This line will configure an EasyConnection 8/64 at io address 2a0,
95 * and shared memory address of cc000. Multiple EasyConnection 8/64
96 * boards can share the same shared memory address space. No interrupt
97 * is required for this board type.
99 * { BRD_ECPE, 0x5000, 0, 0x80000000, 0, 0 },
100 * This line will configure an EasyConnection 8/64 EISA in slot 5 and
101 * shared memory address of 0x80000000 (2 GByte). Multiple
102 * EasyConnection 8/64 EISA boards can share the same shared memory
103 * address space. No interrupt is required for this board type.
105 * { BRD_ONBOARD, 0x240, 0, 0xd0000, 0, 0 },
106 * This line will configure an ONboard (ISA type) at io address 240,
107 * and shared memory address of d0000. Multiple ONboards can share
108 * the same shared memory address space. No interrupt required.
110 * { BRD_BRUMBY4, 0x360, 0, 0xc8000, 0, 0 },
111 * This line will configure a Brumby board (any number of ports!) at
112 * io address 360 and shared memory address of c8000. All Brumby boards
113 * configured into a system must have their own separate io and memory
114 * addresses. No interrupt is required.
116 * { BRD_STALLION, 0x330, 0, 0xd0000, 0, 0 },
117 * This line will configure an original Stallion board at io address 330
118 * and shared memory address d0000 (this would only be valid for a "V4.0"
119 * or Rev.O Stallion board). All Stallion boards configured into the
120 * system must have their own separate io and memory addresses. No
121 * interrupt is required.
128 unsigned long memaddr;
133 static stlconf_t stli_brdconf[] = {
134 /*{ BRD_ECP, 0x2a0, 0, 0xcc000, 0, 0 },*/
137 static int stli_nrbrds = sizeof(stli_brdconf) / sizeof(stlconf_t);
140 * There is some experimental EISA board detection code in this driver.
141 * By default it is disabled, but for those that want to try it out,
142 * then set the define below to be 1.
144 #define STLI_EISAPROBE 0
146 /*****************************************************************************/
149 * Define some important driver characteristics. Device major numbers
150 * allocated as per Linux Device Registry.
152 #ifndef STL_SIOMEMMAJOR
153 #define STL_SIOMEMMAJOR 28
155 #ifndef STL_SERIALMAJOR
156 #define STL_SERIALMAJOR 24
158 #ifndef STL_CALLOUTMAJOR
159 #define STL_CALLOUTMAJOR 25
162 /*****************************************************************************/
165 * Define our local driver identity first. Set up stuff to deal with
166 * all the local structures required by a serial tty driver.
168 static char *stli_drvtitle = "Stallion Intelligent Multiport Serial Driver";
169 static char *stli_drvname = "istallion";
170 static char *stli_drvversion = "5.6.0";
171 static char *stli_serialname = "ttyE";
173 static struct tty_driver *stli_serial;
176 * We will need to allocate a temporary write buffer for chars that
177 * come direct from user space. The problem is that a copy from user
178 * space might cause a page fault (typically on a system that is
179 * swapping!). All ports will share one buffer - since if the system
180 * is already swapping a shared buffer won't make things any worse.
182 static char *stli_tmpwritebuf;
183 static DECLARE_MUTEX(stli_tmpwritesem);
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_PARM(board0, "1-3s");
382 MODULE_PARM_DESC(board0, "Board 0 config -> name[,ioaddr[,memaddr]");
383 MODULE_PARM(board1, "1-3s");
384 MODULE_PARM_DESC(board1, "Board 1 config -> name[,ioaddr[,memaddr]");
385 MODULE_PARM(board2, "1-3s");
386 MODULE_PARM_DESC(board2, "Board 2 config -> name[,ioaddr[,memaddr]");
387 MODULE_PARM(board3, "1-3s");
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 = sizeof(stli_eisamemprobeaddrs) / sizeof(unsigned long);
409 int stli_eisaprobe = STLI_EISAPROBE;
412 * Define the Stallion PCI vendor and device IDs.
415 #ifndef PCI_VENDOR_ID_STALLION
416 #define PCI_VENDOR_ID_STALLION 0x124d
418 #ifndef PCI_DEVICE_ID_ECRA
419 #define PCI_DEVICE_ID_ECRA 0x0004
422 static struct pci_device_id istallion_pci_tbl[] = {
423 { PCI_VENDOR_ID_STALLION, PCI_DEVICE_ID_ECRA, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
426 MODULE_DEVICE_TABLE(pci, istallion_pci_tbl);
428 #endif /* CONFIG_PCI */
430 /*****************************************************************************/
433 * Hardware configuration info for ECP boards. These defines apply
434 * to the directly accessible io ports of the ECP. There is a set of
435 * defines for each ECP board type, ISA, EISA, MCA and PCI.
439 #define ECP_MEMSIZE (128 * 1024)
440 #define ECP_PCIMEMSIZE (256 * 1024)
442 #define ECP_ATPAGESIZE (4 * 1024)
443 #define ECP_MCPAGESIZE (4 * 1024)
444 #define ECP_EIPAGESIZE (64 * 1024)
445 #define ECP_PCIPAGESIZE (64 * 1024)
447 #define STL_EISAID 0x8c4e
450 * Important defines for the ISA class of ECP board.
453 #define ECP_ATCONFR 1
454 #define ECP_ATMEMAR 2
455 #define ECP_ATMEMPR 3
456 #define ECP_ATSTOP 0x1
457 #define ECP_ATINTENAB 0x10
458 #define ECP_ATENABLE 0x20
459 #define ECP_ATDISABLE 0x00
460 #define ECP_ATADDRMASK 0x3f000
461 #define ECP_ATADDRSHFT 12
464 * Important defines for the EISA class of ECP board.
467 #define ECP_EIMEMARL 1
468 #define ECP_EICONFR 2
469 #define ECP_EIMEMARH 3
470 #define ECP_EIENABLE 0x1
471 #define ECP_EIDISABLE 0x0
472 #define ECP_EISTOP 0x4
473 #define ECP_EIEDGE 0x00
474 #define ECP_EILEVEL 0x80
475 #define ECP_EIADDRMASKL 0x00ff0000
476 #define ECP_EIADDRSHFTL 16
477 #define ECP_EIADDRMASKH 0xff000000
478 #define ECP_EIADDRSHFTH 24
479 #define ECP_EIBRDENAB 0xc84
481 #define ECP_EISAID 0x4
484 * Important defines for the Micro-channel class of ECP board.
485 * (It has a lot in common with the ISA boards.)
488 #define ECP_MCCONFR 1
489 #define ECP_MCSTOP 0x20
490 #define ECP_MCENABLE 0x80
491 #define ECP_MCDISABLE 0x00
494 * Important defines for the PCI class of ECP board.
495 * (It has a lot in common with the other ECP boards.)
497 #define ECP_PCIIREG 0
498 #define ECP_PCICONFR 1
499 #define ECP_PCISTOP 0x01
502 * Hardware configuration info for ONboard and Brumby boards. These
503 * defines apply to the directly accessible io ports of these boards.
505 #define ONB_IOSIZE 16
506 #define ONB_MEMSIZE (64 * 1024)
507 #define ONB_ATPAGESIZE (64 * 1024)
508 #define ONB_MCPAGESIZE (64 * 1024)
509 #define ONB_EIMEMSIZE (128 * 1024)
510 #define ONB_EIPAGESIZE (64 * 1024)
513 * Important defines for the ISA class of ONboard board.
516 #define ONB_ATMEMAR 1
517 #define ONB_ATCONFR 2
518 #define ONB_ATSTOP 0x4
519 #define ONB_ATENABLE 0x01
520 #define ONB_ATDISABLE 0x00
521 #define ONB_ATADDRMASK 0xff0000
522 #define ONB_ATADDRSHFT 16
524 #define ONB_MEMENABLO 0
525 #define ONB_MEMENABHI 0x02
528 * Important defines for the EISA class of ONboard board.
531 #define ONB_EIMEMARL 1
532 #define ONB_EICONFR 2
533 #define ONB_EIMEMARH 3
534 #define ONB_EIENABLE 0x1
535 #define ONB_EIDISABLE 0x0
536 #define ONB_EISTOP 0x4
537 #define ONB_EIEDGE 0x00
538 #define ONB_EILEVEL 0x80
539 #define ONB_EIADDRMASKL 0x00ff0000
540 #define ONB_EIADDRSHFTL 16
541 #define ONB_EIADDRMASKH 0xff000000
542 #define ONB_EIADDRSHFTH 24
543 #define ONB_EIBRDENAB 0xc84
545 #define ONB_EISAID 0x1
548 * Important defines for the Brumby boards. They are pretty simple,
549 * there is not much that is programmably configurable.
551 #define BBY_IOSIZE 16
552 #define BBY_MEMSIZE (64 * 1024)
553 #define BBY_PAGESIZE (16 * 1024)
556 #define BBY_ATCONFR 1
557 #define BBY_ATSTOP 0x4
560 * Important defines for the Stallion boards. They are pretty simple,
561 * there is not much that is programmably configurable.
563 #define STAL_IOSIZE 16
564 #define STAL_MEMSIZE (64 * 1024)
565 #define STAL_PAGESIZE (64 * 1024)
568 * Define the set of status register values for EasyConnection panels.
569 * The signature will return with the status value for each panel. From
570 * this we can determine what is attached to the board - before we have
571 * actually down loaded any code to it.
573 #define ECH_PNLSTATUS 2
574 #define ECH_PNL16PORT 0x20
575 #define ECH_PNLIDMASK 0x07
576 #define ECH_PNLXPID 0x40
577 #define ECH_PNLINTRPEND 0x80
580 * Define some macros to do things to the board. Even those these boards
581 * are somewhat related there is often significantly different ways of
582 * doing some operation on it (like enable, paging, reset, etc). So each
583 * board class has a set of functions which do the commonly required
584 * operations. The macros below basically just call these functions,
585 * generally checking for a NULL function - which means that the board
586 * needs nothing done to it to achieve this operation!
588 #define EBRDINIT(brdp) \
589 if (brdp->init != NULL) \
592 #define EBRDENABLE(brdp) \
593 if (brdp->enable != NULL) \
594 (* brdp->enable)(brdp);
596 #define EBRDDISABLE(brdp) \
597 if (brdp->disable != NULL) \
598 (* brdp->disable)(brdp);
600 #define EBRDINTR(brdp) \
601 if (brdp->intr != NULL) \
602 (* brdp->intr)(brdp);
604 #define EBRDRESET(brdp) \
605 if (brdp->reset != NULL) \
606 (* brdp->reset)(brdp);
608 #define EBRDGETMEMPTR(brdp,offset) \
609 (* brdp->getmemptr)(brdp, offset, __LINE__)
612 * Define the maximal baud rate, and the default baud base for ports.
614 #define STL_MAXBAUD 460800
615 #define STL_BAUDBASE 115200
616 #define STL_CLOSEDELAY (5 * HZ / 10)
618 /*****************************************************************************/
621 * Define macros to extract a brd or port number from a minor number.
623 #define MINOR2BRD(min) (((min) & 0xc0) >> 6)
624 #define MINOR2PORT(min) ((min) & 0x3f)
627 * Define a baud rate table that converts termios baud rate selector
628 * into the actual baud rate value. All baud rate calculations are based
629 * on the actual baud rate required.
631 static unsigned int stli_baudrates[] = {
632 0, 50, 75, 110, 134, 150, 200, 300, 600, 1200, 1800, 2400, 4800,
633 9600, 19200, 38400, 57600, 115200, 230400, 460800, 921600
636 /*****************************************************************************/
639 * Define some handy local macros...
642 #define MIN(a,b) (((a) <= (b)) ? (a) : (b))
645 #define TOLOWER(x) ((((x) >= 'A') && ((x) <= 'Z')) ? ((x) + 0x20) : (x))
647 /*****************************************************************************/
650 * Prototype all functions in this driver!
654 static void stli_argbrds(void);
655 static int stli_parsebrd(stlconf_t *confp, char **argp);
657 static unsigned long stli_atol(char *str);
661 static int stli_open(struct tty_struct *tty, struct file *filp);
662 static void stli_close(struct tty_struct *tty, struct file *filp);
663 static int stli_write(struct tty_struct *tty, const unsigned char *buf, int count);
664 static void stli_putchar(struct tty_struct *tty, unsigned char ch);
665 static void stli_flushchars(struct tty_struct *tty);
666 static int stli_writeroom(struct tty_struct *tty);
667 static int stli_charsinbuffer(struct tty_struct *tty);
668 static int stli_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg);
669 static void stli_settermios(struct tty_struct *tty, struct termios *old);
670 static void stli_throttle(struct tty_struct *tty);
671 static void stli_unthrottle(struct tty_struct *tty);
672 static void stli_stop(struct tty_struct *tty);
673 static void stli_start(struct tty_struct *tty);
674 static void stli_flushbuffer(struct tty_struct *tty);
675 static void stli_breakctl(struct tty_struct *tty, int state);
676 static void stli_waituntilsent(struct tty_struct *tty, int timeout);
677 static void stli_sendxchar(struct tty_struct *tty, char ch);
678 static void stli_hangup(struct tty_struct *tty);
679 static int stli_portinfo(stlibrd_t *brdp, stliport_t *portp, int portnr, char *pos);
681 static int stli_brdinit(stlibrd_t *brdp);
682 static int stli_startbrd(stlibrd_t *brdp);
683 static ssize_t stli_memread(struct file *fp, char __user *buf, size_t count, loff_t *offp);
684 static ssize_t stli_memwrite(struct file *fp, const char __user *buf, size_t count, loff_t *offp);
685 static int stli_memioctl(struct inode *ip, struct file *fp, unsigned int cmd, unsigned long arg);
686 static void stli_brdpoll(stlibrd_t *brdp, volatile cdkhdr_t *hdrp);
687 static void stli_poll(unsigned long arg);
688 static int stli_hostcmd(stlibrd_t *brdp, stliport_t *portp);
689 static int stli_initopen(stlibrd_t *brdp, stliport_t *portp);
690 static int stli_rawopen(stlibrd_t *brdp, stliport_t *portp, unsigned long arg, int wait);
691 static int stli_rawclose(stlibrd_t *brdp, stliport_t *portp, unsigned long arg, int wait);
692 static int stli_waitcarrier(stlibrd_t *brdp, stliport_t *portp, struct file *filp);
693 static void stli_dohangup(void *arg);
694 static int stli_setport(stliport_t *portp);
695 static int stli_cmdwait(stlibrd_t *brdp, stliport_t *portp, unsigned long cmd, void *arg, int size, int copyback);
696 static void stli_sendcmd(stlibrd_t *brdp, stliport_t *portp, unsigned long cmd, void *arg, int size, int copyback);
697 static void stli_dodelaycmd(stliport_t *portp, volatile cdkctrl_t *cp);
698 static void stli_mkasyport(stliport_t *portp, asyport_t *pp, struct termios *tiosp);
699 static void stli_mkasysigs(asysigs_t *sp, int dtr, int rts);
700 static long stli_mktiocm(unsigned long sigvalue);
701 static void stli_read(stlibrd_t *brdp, stliport_t *portp);
702 static int stli_getserial(stliport_t *portp, struct serial_struct __user *sp);
703 static int stli_setserial(stliport_t *portp, struct serial_struct __user *sp);
704 static int stli_getbrdstats(combrd_t __user *bp);
705 static int stli_getportstats(stliport_t *portp, comstats_t __user *cp);
706 static int stli_portcmdstats(stliport_t *portp);
707 static int stli_clrportstats(stliport_t *portp, comstats_t __user *cp);
708 static int stli_getportstruct(stliport_t __user *arg);
709 static int stli_getbrdstruct(stlibrd_t __user *arg);
710 static void *stli_memalloc(int len);
711 static stlibrd_t *stli_allocbrd(void);
713 static void stli_ecpinit(stlibrd_t *brdp);
714 static void stli_ecpenable(stlibrd_t *brdp);
715 static void stli_ecpdisable(stlibrd_t *brdp);
716 static char *stli_ecpgetmemptr(stlibrd_t *brdp, unsigned long offset, int line);
717 static void stli_ecpreset(stlibrd_t *brdp);
718 static void stli_ecpintr(stlibrd_t *brdp);
719 static void stli_ecpeiinit(stlibrd_t *brdp);
720 static void stli_ecpeienable(stlibrd_t *brdp);
721 static void stli_ecpeidisable(stlibrd_t *brdp);
722 static char *stli_ecpeigetmemptr(stlibrd_t *brdp, unsigned long offset, int line);
723 static void stli_ecpeireset(stlibrd_t *brdp);
724 static void stli_ecpmcenable(stlibrd_t *brdp);
725 static void stli_ecpmcdisable(stlibrd_t *brdp);
726 static char *stli_ecpmcgetmemptr(stlibrd_t *brdp, unsigned long offset, int line);
727 static void stli_ecpmcreset(stlibrd_t *brdp);
728 static void stli_ecppciinit(stlibrd_t *brdp);
729 static char *stli_ecppcigetmemptr(stlibrd_t *brdp, unsigned long offset, int line);
730 static void stli_ecppcireset(stlibrd_t *brdp);
732 static void stli_onbinit(stlibrd_t *brdp);
733 static void stli_onbenable(stlibrd_t *brdp);
734 static void stli_onbdisable(stlibrd_t *brdp);
735 static char *stli_onbgetmemptr(stlibrd_t *brdp, unsigned long offset, int line);
736 static void stli_onbreset(stlibrd_t *brdp);
737 static void stli_onbeinit(stlibrd_t *brdp);
738 static void stli_onbeenable(stlibrd_t *brdp);
739 static void stli_onbedisable(stlibrd_t *brdp);
740 static char *stli_onbegetmemptr(stlibrd_t *brdp, unsigned long offset, int line);
741 static void stli_onbereset(stlibrd_t *brdp);
742 static void stli_bbyinit(stlibrd_t *brdp);
743 static char *stli_bbygetmemptr(stlibrd_t *brdp, unsigned long offset, int line);
744 static void stli_bbyreset(stlibrd_t *brdp);
745 static void stli_stalinit(stlibrd_t *brdp);
746 static char *stli_stalgetmemptr(stlibrd_t *brdp, unsigned long offset, int line);
747 static void stli_stalreset(stlibrd_t *brdp);
749 static stliport_t *stli_getport(int brdnr, int panelnr, int portnr);
751 static int stli_initecp(stlibrd_t *brdp);
752 static int stli_initonb(stlibrd_t *brdp);
753 static int stli_eisamemprobe(stlibrd_t *brdp);
754 static int stli_initports(stlibrd_t *brdp);
757 static int stli_initpcibrd(int brdtype, struct pci_dev *devp);
760 /*****************************************************************************/
763 * Define the driver info for a user level shared memory device. This
764 * device will work sort of like the /dev/kmem device - except that it
765 * will give access to the shared memory on the Stallion intelligent
766 * board. This is also a very useful debugging tool.
768 static struct file_operations stli_fsiomem = {
769 .owner = THIS_MODULE,
770 .read = stli_memread,
771 .write = stli_memwrite,
772 .ioctl = stli_memioctl,
775 /*****************************************************************************/
778 * Define a timer_list entry for our poll routine. The slave board
779 * is polled every so often to see if anything needs doing. This is
780 * much cheaper on host cpu than using interrupts. It turns out to
781 * not increase character latency by much either...
783 static struct timer_list stli_timerlist = TIMER_INITIALIZER(stli_poll, 0, 0);
785 static int stli_timeron;
788 * Define the calculation for the timeout routine.
790 #define STLI_TIMEOUT (jiffies + 1)
792 /*****************************************************************************/
794 static struct class_simple *istallion_class;
799 * Loadable module initialization stuff.
802 static int __init istallion_module_init(void)
807 printk("init_module()\n");
813 restore_flags(flags);
818 /*****************************************************************************/
820 static void __exit istallion_module_exit(void)
828 printk("cleanup_module()\n");
831 printk(KERN_INFO "Unloading %s: version %s\n", stli_drvtitle,
838 * Free up all allocated resources used by the ports. This includes
839 * memory and interrupts.
843 del_timer(&stli_timerlist);
846 i = tty_unregister_driver(stli_serial);
848 printk("STALLION: failed to un-register tty driver, "
850 restore_flags(flags);
853 put_tty_driver(stli_serial);
854 for (i = 0; i < 4; i++) {
855 devfs_remove("staliomem/%d", i);
856 class_simple_device_remove(MKDEV(STL_SIOMEMMAJOR, i));
858 devfs_remove("staliomem");
859 class_simple_destroy(istallion_class);
860 if ((i = unregister_chrdev(STL_SIOMEMMAJOR, "staliomem")))
861 printk("STALLION: failed to un-register serial memory device, "
863 if (stli_tmpwritebuf != (char *) NULL)
864 kfree(stli_tmpwritebuf);
865 if (stli_txcookbuf != (char *) NULL)
866 kfree(stli_txcookbuf);
868 for (i = 0; (i < stli_nrbrds); i++) {
869 if ((brdp = stli_brds[i]) == (stlibrd_t *) NULL)
871 for (j = 0; (j < STL_MAXPORTS); j++) {
872 portp = brdp->ports[j];
873 if (portp != (stliport_t *) NULL) {
874 if (portp->tty != (struct tty_struct *) NULL)
875 tty_hangup(portp->tty);
880 iounmap(brdp->membase);
881 if (brdp->iosize > 0)
882 release_region(brdp->iobase, brdp->iosize);
884 stli_brds[i] = (stlibrd_t *) NULL;
887 restore_flags(flags);
890 module_init(istallion_module_init);
891 module_exit(istallion_module_exit);
893 /*****************************************************************************/
896 * Check for any arguments passed in on the module load command line.
899 static void stli_argbrds(void)
906 printk("stli_argbrds()\n");
909 nrargs = sizeof(stli_brdsp) / sizeof(char **);
911 for (i = stli_nrbrds; (i < nrargs); i++) {
912 memset(&conf, 0, sizeof(conf));
913 if (stli_parsebrd(&conf, stli_brdsp[i]) == 0)
915 if ((brdp = stli_allocbrd()) == (stlibrd_t *) NULL)
919 brdp->brdtype = conf.brdtype;
920 brdp->iobase = conf.ioaddr1;
921 brdp->memaddr = conf.memaddr;
926 /*****************************************************************************/
929 * Convert an ascii string number into an unsigned long.
932 static unsigned long stli_atol(char *str)
940 if ((*sp == '0') && (*(sp+1) == 'x')) {
943 } else if (*sp == '0') {
950 for (; (*sp != 0); sp++) {
951 c = (*sp > '9') ? (TOLOWER(*sp) - 'a' + 10) : (*sp - '0');
952 if ((c < 0) || (c >= base)) {
953 printk("STALLION: invalid argument %s\n", str);
957 val = (val * base) + c;
962 /*****************************************************************************/
965 * Parse the supplied argument string, into the board conf struct.
968 static int stli_parsebrd(stlconf_t *confp, char **argp)
974 printk("stli_parsebrd(confp=%x,argp=%x)\n", (int) confp, (int) argp);
977 if ((argp[0] == (char *) NULL) || (*argp[0] == 0))
980 for (sp = argp[0], i = 0; ((*sp != 0) && (i < 25)); sp++, i++)
983 nrbrdnames = sizeof(stli_brdstr) / sizeof(stlibrdtype_t);
984 for (i = 0; (i < nrbrdnames); i++) {
985 if (strcmp(stli_brdstr[i].name, argp[0]) == 0)
988 if (i >= nrbrdnames) {
989 printk("STALLION: unknown board name, %s?\n", argp[0]);
993 confp->brdtype = stli_brdstr[i].type;
994 if ((argp[1] != (char *) NULL) && (*argp[1] != 0))
995 confp->ioaddr1 = stli_atol(argp[1]);
996 if ((argp[2] != (char *) NULL) && (*argp[2] != 0))
997 confp->memaddr = stli_atol(argp[2]);
1003 /*****************************************************************************/
1006 * Local driver kernel malloc routine.
1009 static void *stli_memalloc(int len)
1011 return((void *) kmalloc(len, GFP_KERNEL));
1014 /*****************************************************************************/
1016 static int stli_open(struct tty_struct *tty, struct file *filp)
1020 unsigned int minordev;
1021 int brdnr, portnr, rc;
1024 printk("stli_open(tty=%x,filp=%x): device=%s\n", (int) tty,
1025 (int) filp, tty->name);
1028 minordev = tty->index;
1029 brdnr = MINOR2BRD(minordev);
1030 if (brdnr >= stli_nrbrds)
1032 brdp = stli_brds[brdnr];
1033 if (brdp == (stlibrd_t *) NULL)
1035 if ((brdp->state & BST_STARTED) == 0)
1037 portnr = MINOR2PORT(minordev);
1038 if ((portnr < 0) || (portnr > brdp->nrports))
1041 portp = brdp->ports[portnr];
1042 if (portp == (stliport_t *) NULL)
1044 if (portp->devnr < 1)
1049 * Check if this port is in the middle of closing. If so then wait
1050 * until it is closed then return error status based on flag settings.
1051 * The sleep here does not need interrupt protection since the wakeup
1052 * for it is done with the same context.
1054 if (portp->flags & ASYNC_CLOSING) {
1055 interruptible_sleep_on(&portp->close_wait);
1056 if (portp->flags & ASYNC_HUP_NOTIFY)
1058 return(-ERESTARTSYS);
1062 * On the first open of the device setup the port hardware, and
1063 * initialize the per port data structure. Since initializing the port
1064 * requires several commands to the board we will need to wait for any
1065 * other open that is already initializing the port.
1068 tty->driver_data = portp;
1071 while (test_bit(ST_INITIALIZING, &portp->state)) {
1072 if (signal_pending(current))
1073 return(-ERESTARTSYS);
1074 interruptible_sleep_on(&portp->raw_wait);
1077 if ((portp->flags & ASYNC_INITIALIZED) == 0) {
1078 set_bit(ST_INITIALIZING, &portp->state);
1079 if ((rc = stli_initopen(brdp, portp)) >= 0) {
1080 portp->flags |= ASYNC_INITIALIZED;
1081 clear_bit(TTY_IO_ERROR, &tty->flags);
1083 clear_bit(ST_INITIALIZING, &portp->state);
1084 wake_up_interruptible(&portp->raw_wait);
1090 * Check if this port is in the middle of closing. If so then wait
1091 * until it is closed then return error status, based on flag settings.
1092 * The sleep here does not need interrupt protection since the wakeup
1093 * for it is done with the same context.
1095 if (portp->flags & ASYNC_CLOSING) {
1096 interruptible_sleep_on(&portp->close_wait);
1097 if (portp->flags & ASYNC_HUP_NOTIFY)
1099 return(-ERESTARTSYS);
1103 * Based on type of open being done check if it can overlap with any
1104 * previous opens still in effect. If we are a normal serial device
1105 * then also we might have to wait for carrier.
1107 if (!(filp->f_flags & O_NONBLOCK)) {
1108 if ((rc = stli_waitcarrier(brdp, portp, filp)) != 0)
1111 portp->flags |= ASYNC_NORMAL_ACTIVE;
1115 /*****************************************************************************/
1117 static void stli_close(struct tty_struct *tty, struct file *filp)
1121 unsigned long flags;
1124 printk("stli_close(tty=%x,filp=%x)\n", (int) tty, (int) filp);
1127 portp = tty->driver_data;
1128 if (portp == (stliport_t *) NULL)
1133 if (tty_hung_up_p(filp)) {
1134 restore_flags(flags);
1137 if ((tty->count == 1) && (portp->refcount != 1))
1138 portp->refcount = 1;
1139 if (portp->refcount-- > 1) {
1140 restore_flags(flags);
1144 portp->flags |= ASYNC_CLOSING;
1147 * May want to wait for data to drain before closing. The BUSY flag
1148 * keeps track of whether we are still transmitting or not. It is
1149 * updated by messages from the slave - indicating when all chars
1150 * really have drained.
1152 if (tty == stli_txcooktty)
1153 stli_flushchars(tty);
1155 if (portp->closing_wait != ASYNC_CLOSING_WAIT_NONE)
1156 tty_wait_until_sent(tty, portp->closing_wait);
1158 portp->flags &= ~ASYNC_INITIALIZED;
1159 brdp = stli_brds[portp->brdnr];
1160 stli_rawclose(brdp, portp, 0, 0);
1161 if (tty->termios->c_cflag & HUPCL) {
1162 stli_mkasysigs(&portp->asig, 0, 0);
1163 if (test_bit(ST_CMDING, &portp->state))
1164 set_bit(ST_DOSIGS, &portp->state);
1166 stli_sendcmd(brdp, portp, A_SETSIGNALS, &portp->asig,
1167 sizeof(asysigs_t), 0);
1169 clear_bit(ST_TXBUSY, &portp->state);
1170 clear_bit(ST_RXSTOP, &portp->state);
1171 set_bit(TTY_IO_ERROR, &tty->flags);
1172 if (tty->ldisc.flush_buffer)
1173 (tty->ldisc.flush_buffer)(tty);
1174 set_bit(ST_DOFLUSHRX, &portp->state);
1175 stli_flushbuffer(tty);
1178 portp->tty = (struct tty_struct *) NULL;
1180 if (portp->openwaitcnt) {
1181 if (portp->close_delay)
1182 msleep_interruptible(jiffies_to_msecs(portp->close_delay));
1183 wake_up_interruptible(&portp->open_wait);
1186 portp->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
1187 wake_up_interruptible(&portp->close_wait);
1188 restore_flags(flags);
1191 /*****************************************************************************/
1194 * Carry out first open operations on a port. This involves a number of
1195 * commands to be sent to the slave. We need to open the port, set the
1196 * notification events, set the initial port settings, get and set the
1197 * initial signal values. We sleep and wait in between each one. But
1198 * this still all happens pretty quickly.
1201 static int stli_initopen(stlibrd_t *brdp, stliport_t *portp)
1203 struct tty_struct *tty;
1209 printk("stli_initopen(brdp=%x,portp=%x)\n", (int) brdp, (int) portp);
1212 if ((rc = stli_rawopen(brdp, portp, 0, 1)) < 0)
1215 memset(&nt, 0, sizeof(asynotify_t));
1216 nt.data = (DT_TXLOW | DT_TXEMPTY | DT_RXBUSY | DT_RXBREAK);
1218 if ((rc = stli_cmdwait(brdp, portp, A_SETNOTIFY, &nt,
1219 sizeof(asynotify_t), 0)) < 0)
1223 if (tty == (struct tty_struct *) NULL)
1225 stli_mkasyport(portp, &aport, tty->termios);
1226 if ((rc = stli_cmdwait(brdp, portp, A_SETPORT, &aport,
1227 sizeof(asyport_t), 0)) < 0)
1230 set_bit(ST_GETSIGS, &portp->state);
1231 if ((rc = stli_cmdwait(brdp, portp, A_GETSIGNALS, &portp->asig,
1232 sizeof(asysigs_t), 1)) < 0)
1234 if (test_and_clear_bit(ST_GETSIGS, &portp->state))
1235 portp->sigs = stli_mktiocm(portp->asig.sigvalue);
1236 stli_mkasysigs(&portp->asig, 1, 1);
1237 if ((rc = stli_cmdwait(brdp, portp, A_SETSIGNALS, &portp->asig,
1238 sizeof(asysigs_t), 0)) < 0)
1244 /*****************************************************************************/
1247 * Send an open message to the slave. This will sleep waiting for the
1248 * acknowledgement, so must have user context. We need to co-ordinate
1249 * with close events here, since we don't want open and close events
1253 static int stli_rawopen(stlibrd_t *brdp, stliport_t *portp, unsigned long arg, int wait)
1255 volatile cdkhdr_t *hdrp;
1256 volatile cdkctrl_t *cp;
1257 volatile unsigned char *bits;
1258 unsigned long flags;
1262 printk("stli_rawopen(brdp=%x,portp=%x,arg=%x,wait=%d)\n",
1263 (int) brdp, (int) portp, (int) arg, wait);
1267 * Send a message to the slave to open this port.
1273 * Slave is already closing this port. This can happen if a hangup
1274 * occurs on this port. So we must wait until it is complete. The
1275 * order of opens and closes may not be preserved across shared
1276 * memory, so we must wait until it is complete.
1278 while (test_bit(ST_CLOSING, &portp->state)) {
1279 if (signal_pending(current)) {
1280 restore_flags(flags);
1281 return(-ERESTARTSYS);
1283 interruptible_sleep_on(&portp->raw_wait);
1287 * Everything is ready now, so write the open message into shared
1288 * memory. Once the message is in set the service bits to say that
1289 * this port wants service.
1292 cp = &((volatile cdkasy_t *) EBRDGETMEMPTR(brdp, portp->addr))->ctrl;
1295 hdrp = (volatile cdkhdr_t *) EBRDGETMEMPTR(brdp, CDK_CDKADDR);
1296 bits = ((volatile unsigned char *) hdrp) + brdp->slaveoffset +
1298 *bits |= portp->portbit;
1302 restore_flags(flags);
1307 * Slave is in action, so now we must wait for the open acknowledgment
1311 set_bit(ST_OPENING, &portp->state);
1312 while (test_bit(ST_OPENING, &portp->state)) {
1313 if (signal_pending(current)) {
1317 interruptible_sleep_on(&portp->raw_wait);
1319 restore_flags(flags);
1321 if ((rc == 0) && (portp->rc != 0))
1326 /*****************************************************************************/
1329 * Send a close message to the slave. Normally this will sleep waiting
1330 * for the acknowledgement, but if wait parameter is 0 it will not. If
1331 * wait is true then must have user context (to sleep).
1334 static int stli_rawclose(stlibrd_t *brdp, stliport_t *portp, unsigned long arg, int wait)
1336 volatile cdkhdr_t *hdrp;
1337 volatile cdkctrl_t *cp;
1338 volatile unsigned char *bits;
1339 unsigned long flags;
1343 printk("stli_rawclose(brdp=%x,portp=%x,arg=%x,wait=%d)\n",
1344 (int) brdp, (int) portp, (int) arg, wait);
1351 * Slave is already closing this port. This can happen if a hangup
1352 * occurs on this port.
1355 while (test_bit(ST_CLOSING, &portp->state)) {
1356 if (signal_pending(current)) {
1357 restore_flags(flags);
1358 return(-ERESTARTSYS);
1360 interruptible_sleep_on(&portp->raw_wait);
1365 * Write the close command into shared memory.
1368 cp = &((volatile cdkasy_t *) EBRDGETMEMPTR(brdp, portp->addr))->ctrl;
1371 hdrp = (volatile cdkhdr_t *) EBRDGETMEMPTR(brdp, CDK_CDKADDR);
1372 bits = ((volatile unsigned char *) hdrp) + brdp->slaveoffset +
1374 *bits |= portp->portbit;
1377 set_bit(ST_CLOSING, &portp->state);
1379 restore_flags(flags);
1384 * Slave is in action, so now we must wait for the open acknowledgment
1388 while (test_bit(ST_CLOSING, &portp->state)) {
1389 if (signal_pending(current)) {
1393 interruptible_sleep_on(&portp->raw_wait);
1395 restore_flags(flags);
1397 if ((rc == 0) && (portp->rc != 0))
1402 /*****************************************************************************/
1405 * Send a command to the slave and wait for the response. This must
1406 * have user context (it sleeps). This routine is generic in that it
1407 * can send any type of command. Its purpose is to wait for that command
1408 * to complete (as opposed to initiating the command then returning).
1411 static int stli_cmdwait(stlibrd_t *brdp, stliport_t *portp, unsigned long cmd, void *arg, int size, int copyback)
1413 unsigned long flags;
1416 printk("stli_cmdwait(brdp=%x,portp=%x,cmd=%x,arg=%x,size=%d,"
1417 "copyback=%d)\n", (int) brdp, (int) portp, (int) cmd,
1418 (int) arg, size, copyback);
1423 while (test_bit(ST_CMDING, &portp->state)) {
1424 if (signal_pending(current)) {
1425 restore_flags(flags);
1426 return(-ERESTARTSYS);
1428 interruptible_sleep_on(&portp->raw_wait);
1431 stli_sendcmd(brdp, portp, cmd, arg, size, copyback);
1433 while (test_bit(ST_CMDING, &portp->state)) {
1434 if (signal_pending(current)) {
1435 restore_flags(flags);
1436 return(-ERESTARTSYS);
1438 interruptible_sleep_on(&portp->raw_wait);
1440 restore_flags(flags);
1447 /*****************************************************************************/
1450 * Send the termios settings for this port to the slave. This sleeps
1451 * waiting for the command to complete - so must have user context.
1454 static int stli_setport(stliport_t *portp)
1460 printk("stli_setport(portp=%x)\n", (int) portp);
1463 if (portp == (stliport_t *) NULL)
1465 if (portp->tty == (struct tty_struct *) NULL)
1467 if ((portp->brdnr < 0) && (portp->brdnr >= stli_nrbrds))
1469 brdp = stli_brds[portp->brdnr];
1470 if (brdp == (stlibrd_t *) NULL)
1473 stli_mkasyport(portp, &aport, portp->tty->termios);
1474 return(stli_cmdwait(brdp, portp, A_SETPORT, &aport, sizeof(asyport_t), 0));
1477 /*****************************************************************************/
1480 * Possibly need to wait for carrier (DCD signal) to come high. Say
1481 * maybe because if we are clocal then we don't need to wait...
1484 static int stli_waitcarrier(stlibrd_t *brdp, stliport_t *portp, struct file *filp)
1486 unsigned long flags;
1490 printk("stli_waitcarrier(brdp=%x,portp=%x,filp=%x)\n",
1491 (int) brdp, (int) portp, (int) filp);
1497 if (portp->tty->termios->c_cflag & CLOCAL)
1502 portp->openwaitcnt++;
1503 if (! tty_hung_up_p(filp))
1507 stli_mkasysigs(&portp->asig, 1, 1);
1508 if ((rc = stli_cmdwait(brdp, portp, A_SETSIGNALS,
1509 &portp->asig, sizeof(asysigs_t), 0)) < 0)
1511 if (tty_hung_up_p(filp) ||
1512 ((portp->flags & ASYNC_INITIALIZED) == 0)) {
1513 if (portp->flags & ASYNC_HUP_NOTIFY)
1519 if (((portp->flags & ASYNC_CLOSING) == 0) &&
1520 (doclocal || (portp->sigs & TIOCM_CD))) {
1523 if (signal_pending(current)) {
1527 interruptible_sleep_on(&portp->open_wait);
1530 if (! tty_hung_up_p(filp))
1532 portp->openwaitcnt--;
1533 restore_flags(flags);
1538 /*****************************************************************************/
1541 * Write routine. Take the data and put it in the shared memory ring
1542 * queue. If port is not already sending chars then need to mark the
1543 * service bits for this port.
1546 static int stli_write(struct tty_struct *tty, const unsigned char *buf, int count)
1548 volatile cdkasy_t *ap;
1549 volatile cdkhdr_t *hdrp;
1550 volatile unsigned char *bits;
1551 unsigned char *shbuf, *chbuf;
1554 unsigned int len, stlen, head, tail, size;
1555 unsigned long flags;
1558 printk("stli_write(tty=%x,buf=%x,count=%d)\n",
1559 (int) tty, (int) buf, count);
1562 if ((tty == (struct tty_struct *) NULL) ||
1563 (stli_tmpwritebuf == (char *) NULL))
1565 if (tty == stli_txcooktty)
1566 stli_flushchars(tty);
1567 portp = tty->driver_data;
1568 if (portp == (stliport_t *) NULL)
1570 if ((portp->brdnr < 0) || (portp->brdnr >= stli_nrbrds))
1572 brdp = stli_brds[portp->brdnr];
1573 if (brdp == (stlibrd_t *) NULL)
1575 chbuf = (unsigned char *) buf;
1578 * All data is now local, shove as much as possible into shared memory.
1583 ap = (volatile cdkasy_t *) EBRDGETMEMPTR(brdp, portp->addr);
1584 head = (unsigned int) ap->txq.head;
1585 tail = (unsigned int) ap->txq.tail;
1586 if (tail != ((unsigned int) ap->txq.tail))
1587 tail = (unsigned int) ap->txq.tail;
1588 size = portp->txsize;
1590 len = size - (head - tail) - 1;
1591 stlen = size - head;
1593 len = tail - head - 1;
1597 len = MIN(len, count);
1599 shbuf = (char *) EBRDGETMEMPTR(brdp, portp->txoffset);
1602 stlen = MIN(len, stlen);
1603 memcpy((shbuf + head), chbuf, stlen);
1614 ap = (volatile cdkasy_t *) EBRDGETMEMPTR(brdp, portp->addr);
1615 ap->txq.head = head;
1616 if (test_bit(ST_TXBUSY, &portp->state)) {
1617 if (ap->changed.data & DT_TXEMPTY)
1618 ap->changed.data &= ~DT_TXEMPTY;
1620 hdrp = (volatile cdkhdr_t *) EBRDGETMEMPTR(brdp, CDK_CDKADDR);
1621 bits = ((volatile unsigned char *) hdrp) + brdp->slaveoffset +
1623 *bits |= portp->portbit;
1624 set_bit(ST_TXBUSY, &portp->state);
1627 restore_flags(flags);
1632 /*****************************************************************************/
1635 * Output a single character. We put it into a temporary local buffer
1636 * (for speed) then write out that buffer when the flushchars routine
1637 * is called. There is a safety catch here so that if some other port
1638 * writes chars before the current buffer has been, then we write them
1639 * first them do the new ports.
1642 static void stli_putchar(struct tty_struct *tty, unsigned char ch)
1645 printk("stli_putchar(tty=%x,ch=%x)\n", (int) tty, (int) ch);
1648 if (tty == (struct tty_struct *) NULL)
1650 if (tty != stli_txcooktty) {
1651 if (stli_txcooktty != (struct tty_struct *) NULL)
1652 stli_flushchars(stli_txcooktty);
1653 stli_txcooktty = tty;
1656 stli_txcookbuf[stli_txcooksize++] = ch;
1659 /*****************************************************************************/
1662 * Transfer characters from the local TX cooking buffer to the board.
1663 * We sort of ignore the tty that gets passed in here. We rely on the
1664 * info stored with the TX cook buffer to tell us which port to flush
1665 * the data on. In any case we clean out the TX cook buffer, for re-use
1669 static void stli_flushchars(struct tty_struct *tty)
1671 volatile cdkhdr_t *hdrp;
1672 volatile unsigned char *bits;
1673 volatile cdkasy_t *ap;
1674 struct tty_struct *cooktty;
1677 unsigned int len, stlen, head, tail, size, count, cooksize;
1678 unsigned char *buf, *shbuf;
1679 unsigned long flags;
1682 printk("stli_flushchars(tty=%x)\n", (int) tty);
1685 cooksize = stli_txcooksize;
1686 cooktty = stli_txcooktty;
1687 stli_txcooksize = 0;
1688 stli_txcookrealsize = 0;
1689 stli_txcooktty = (struct tty_struct *) NULL;
1691 if (tty == (struct tty_struct *) NULL)
1693 if (cooktty == (struct tty_struct *) NULL)
1700 portp = tty->driver_data;
1701 if (portp == (stliport_t *) NULL)
1703 if ((portp->brdnr < 0) || (portp->brdnr >= stli_nrbrds))
1705 brdp = stli_brds[portp->brdnr];
1706 if (brdp == (stlibrd_t *) NULL)
1713 ap = (volatile cdkasy_t *) EBRDGETMEMPTR(brdp, portp->addr);
1714 head = (unsigned int) ap->txq.head;
1715 tail = (unsigned int) ap->txq.tail;
1716 if (tail != ((unsigned int) ap->txq.tail))
1717 tail = (unsigned int) ap->txq.tail;
1718 size = portp->txsize;
1720 len = size - (head - tail) - 1;
1721 stlen = size - head;
1723 len = tail - head - 1;
1727 len = MIN(len, cooksize);
1729 shbuf = (char *) EBRDGETMEMPTR(brdp, portp->txoffset);
1730 buf = stli_txcookbuf;
1733 stlen = MIN(len, stlen);
1734 memcpy((shbuf + head), buf, stlen);
1745 ap = (volatile cdkasy_t *) EBRDGETMEMPTR(brdp, portp->addr);
1746 ap->txq.head = head;
1748 if (test_bit(ST_TXBUSY, &portp->state)) {
1749 if (ap->changed.data & DT_TXEMPTY)
1750 ap->changed.data &= ~DT_TXEMPTY;
1752 hdrp = (volatile cdkhdr_t *) EBRDGETMEMPTR(brdp, CDK_CDKADDR);
1753 bits = ((volatile unsigned char *) hdrp) + brdp->slaveoffset +
1755 *bits |= portp->portbit;
1756 set_bit(ST_TXBUSY, &portp->state);
1759 restore_flags(flags);
1762 /*****************************************************************************/
1764 static int stli_writeroom(struct tty_struct *tty)
1766 volatile cdkasyrq_t *rp;
1769 unsigned int head, tail, len;
1770 unsigned long flags;
1773 printk("stli_writeroom(tty=%x)\n", (int) tty);
1776 if (tty == (struct tty_struct *) NULL)
1778 if (tty == stli_txcooktty) {
1779 if (stli_txcookrealsize != 0) {
1780 len = stli_txcookrealsize - stli_txcooksize;
1785 portp = tty->driver_data;
1786 if (portp == (stliport_t *) NULL)
1788 if ((portp->brdnr < 0) || (portp->brdnr >= stli_nrbrds))
1790 brdp = stli_brds[portp->brdnr];
1791 if (brdp == (stlibrd_t *) NULL)
1797 rp = &((volatile cdkasy_t *) EBRDGETMEMPTR(brdp, portp->addr))->txq;
1798 head = (unsigned int) rp->head;
1799 tail = (unsigned int) rp->tail;
1800 if (tail != ((unsigned int) rp->tail))
1801 tail = (unsigned int) rp->tail;
1802 len = (head >= tail) ? (portp->txsize - (head - tail)) : (tail - head);
1805 restore_flags(flags);
1807 if (tty == stli_txcooktty) {
1808 stli_txcookrealsize = len;
1809 len -= stli_txcooksize;
1814 /*****************************************************************************/
1817 * Return the number of characters in the transmit buffer. Normally we
1818 * will return the number of chars in the shared memory ring queue.
1819 * We need to kludge around the case where the shared memory buffer is
1820 * empty but not all characters have drained yet, for this case just
1821 * return that there is 1 character in the buffer!
1824 static int stli_charsinbuffer(struct tty_struct *tty)
1826 volatile cdkasyrq_t *rp;
1829 unsigned int head, tail, len;
1830 unsigned long flags;
1833 printk("stli_charsinbuffer(tty=%x)\n", (int) tty);
1836 if (tty == (struct tty_struct *) NULL)
1838 if (tty == stli_txcooktty)
1839 stli_flushchars(tty);
1840 portp = tty->driver_data;
1841 if (portp == (stliport_t *) NULL)
1843 if ((portp->brdnr < 0) || (portp->brdnr >= stli_nrbrds))
1845 brdp = stli_brds[portp->brdnr];
1846 if (brdp == (stlibrd_t *) NULL)
1852 rp = &((volatile cdkasy_t *) EBRDGETMEMPTR(brdp, portp->addr))->txq;
1853 head = (unsigned int) rp->head;
1854 tail = (unsigned int) rp->tail;
1855 if (tail != ((unsigned int) rp->tail))
1856 tail = (unsigned int) rp->tail;
1857 len = (head >= tail) ? (head - tail) : (portp->txsize - (tail - head));
1858 if ((len == 0) && test_bit(ST_TXBUSY, &portp->state))
1861 restore_flags(flags);
1866 /*****************************************************************************/
1869 * Generate the serial struct info.
1872 static int stli_getserial(stliport_t *portp, struct serial_struct __user *sp)
1874 struct serial_struct sio;
1878 printk("stli_getserial(portp=%x,sp=%x)\n", (int) portp, (int) sp);
1881 memset(&sio, 0, sizeof(struct serial_struct));
1882 sio.type = PORT_UNKNOWN;
1883 sio.line = portp->portnr;
1885 sio.flags = portp->flags;
1886 sio.baud_base = portp->baud_base;
1887 sio.close_delay = portp->close_delay;
1888 sio.closing_wait = portp->closing_wait;
1889 sio.custom_divisor = portp->custom_divisor;
1890 sio.xmit_fifo_size = 0;
1893 brdp = stli_brds[portp->brdnr];
1894 if (brdp != (stlibrd_t *) NULL)
1895 sio.port = brdp->iobase;
1897 return copy_to_user(sp, &sio, sizeof(struct serial_struct)) ?
1901 /*****************************************************************************/
1904 * Set port according to the serial struct info.
1905 * At this point we do not do any auto-configure stuff, so we will
1906 * just quietly ignore any requests to change irq, etc.
1909 static int stli_setserial(stliport_t *portp, struct serial_struct __user *sp)
1911 struct serial_struct sio;
1915 printk("stli_setserial(portp=%p,sp=%p)\n", portp, sp);
1918 if (copy_from_user(&sio, sp, sizeof(struct serial_struct)))
1920 if (!capable(CAP_SYS_ADMIN)) {
1921 if ((sio.baud_base != portp->baud_base) ||
1922 (sio.close_delay != portp->close_delay) ||
1923 ((sio.flags & ~ASYNC_USR_MASK) !=
1924 (portp->flags & ~ASYNC_USR_MASK)))
1928 portp->flags = (portp->flags & ~ASYNC_USR_MASK) |
1929 (sio.flags & ASYNC_USR_MASK);
1930 portp->baud_base = sio.baud_base;
1931 portp->close_delay = sio.close_delay;
1932 portp->closing_wait = sio.closing_wait;
1933 portp->custom_divisor = sio.custom_divisor;
1935 if ((rc = stli_setport(portp)) < 0)
1940 /*****************************************************************************/
1942 static int stli_tiocmget(struct tty_struct *tty, struct file *file)
1944 stliport_t *portp = tty->driver_data;
1948 if (portp == (stliport_t *) NULL)
1950 if ((portp->brdnr < 0) || (portp->brdnr >= stli_nrbrds))
1952 brdp = stli_brds[portp->brdnr];
1953 if (brdp == (stlibrd_t *) NULL)
1955 if (tty->flags & (1 << TTY_IO_ERROR))
1958 if ((rc = stli_cmdwait(brdp, portp, A_GETSIGNALS,
1959 &portp->asig, sizeof(asysigs_t), 1)) < 0)
1962 return stli_mktiocm(portp->asig.sigvalue);
1965 static int stli_tiocmset(struct tty_struct *tty, struct file *file,
1966 unsigned int set, unsigned int clear)
1968 stliport_t *portp = tty->driver_data;
1970 int rts = -1, dtr = -1;
1972 if (portp == (stliport_t *) NULL)
1974 if ((portp->brdnr < 0) || (portp->brdnr >= stli_nrbrds))
1976 brdp = stli_brds[portp->brdnr];
1977 if (brdp == (stlibrd_t *) NULL)
1979 if (tty->flags & (1 << TTY_IO_ERROR))
1982 if (set & TIOCM_RTS)
1984 if (set & TIOCM_DTR)
1986 if (clear & TIOCM_RTS)
1988 if (clear & TIOCM_DTR)
1991 stli_mkasysigs(&portp->asig, dtr, rts);
1993 return stli_cmdwait(brdp, portp, A_SETSIGNALS, &portp->asig,
1994 sizeof(asysigs_t), 0);
1997 static int stli_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg)
2003 void __user *argp = (void __user *)arg;
2006 printk("stli_ioctl(tty=%x,file=%x,cmd=%x,arg=%x)\n",
2007 (int) tty, (int) file, cmd, (int) arg);
2010 if (tty == (struct tty_struct *) NULL)
2012 portp = tty->driver_data;
2013 if (portp == (stliport_t *) NULL)
2015 if ((portp->brdnr < 0) || (portp->brdnr >= stli_nrbrds))
2017 brdp = stli_brds[portp->brdnr];
2018 if (brdp == (stlibrd_t *) NULL)
2021 if ((cmd != TIOCGSERIAL) && (cmd != TIOCSSERIAL) &&
2022 (cmd != COM_GETPORTSTATS) && (cmd != COM_CLRPORTSTATS)) {
2023 if (tty->flags & (1 << TTY_IO_ERROR))
2031 rc = put_user(((tty->termios->c_cflag & CLOCAL) ? 1 : 0),
2032 (unsigned __user *) arg);
2035 if ((rc = get_user(ival, (unsigned __user *) arg)) == 0)
2036 tty->termios->c_cflag =
2037 (tty->termios->c_cflag & ~CLOCAL) |
2038 (ival ? CLOCAL : 0);
2041 rc = stli_getserial(portp, argp);
2044 rc = stli_setserial(portp, argp);
2047 rc = put_user(portp->pflag, (unsigned __user *)argp);
2050 if ((rc = get_user(portp->pflag, (unsigned __user *)argp)) == 0)
2051 stli_setport(portp);
2053 case COM_GETPORTSTATS:
2054 rc = stli_getportstats(portp, argp);
2056 case COM_CLRPORTSTATS:
2057 rc = stli_clrportstats(portp, argp);
2063 case TIOCSERGSTRUCT:
2064 case TIOCSERGETMULTI:
2065 case TIOCSERSETMULTI:
2074 /*****************************************************************************/
2077 * This routine assumes that we have user context and can sleep.
2078 * Looks like it is true for the current ttys implementation..!!
2081 static void stli_settermios(struct tty_struct *tty, struct termios *old)
2085 struct termios *tiosp;
2089 printk("stli_settermios(tty=%x,old=%x)\n", (int) tty, (int) old);
2092 if (tty == (struct tty_struct *) NULL)
2094 portp = tty->driver_data;
2095 if (portp == (stliport_t *) NULL)
2097 if ((portp->brdnr < 0) || (portp->brdnr >= stli_nrbrds))
2099 brdp = stli_brds[portp->brdnr];
2100 if (brdp == (stlibrd_t *) NULL)
2103 tiosp = tty->termios;
2104 if ((tiosp->c_cflag == old->c_cflag) &&
2105 (tiosp->c_iflag == old->c_iflag))
2108 stli_mkasyport(portp, &aport, tiosp);
2109 stli_cmdwait(brdp, portp, A_SETPORT, &aport, sizeof(asyport_t), 0);
2110 stli_mkasysigs(&portp->asig, ((tiosp->c_cflag & CBAUD) ? 1 : 0), -1);
2111 stli_cmdwait(brdp, portp, A_SETSIGNALS, &portp->asig,
2112 sizeof(asysigs_t), 0);
2113 if ((old->c_cflag & CRTSCTS) && ((tiosp->c_cflag & CRTSCTS) == 0))
2114 tty->hw_stopped = 0;
2115 if (((old->c_cflag & CLOCAL) == 0) && (tiosp->c_cflag & CLOCAL))
2116 wake_up_interruptible(&portp->open_wait);
2119 /*****************************************************************************/
2122 * Attempt to flow control who ever is sending us data. We won't really
2123 * do any flow control action here. We can't directly, and even if we
2124 * wanted to we would have to send a command to the slave. The slave
2125 * knows how to flow control, and will do so when its buffers reach its
2126 * internal high water marks. So what we will do is set a local state
2127 * bit that will stop us sending any RX data up from the poll routine
2128 * (which is the place where RX data from the slave is handled).
2131 static void stli_throttle(struct tty_struct *tty)
2136 printk("stli_throttle(tty=%x)\n", (int) tty);
2139 if (tty == (struct tty_struct *) NULL)
2141 portp = tty->driver_data;
2142 if (portp == (stliport_t *) NULL)
2145 set_bit(ST_RXSTOP, &portp->state);
2148 /*****************************************************************************/
2151 * Unflow control the device sending us data... That means that all
2152 * we have to do is clear the RXSTOP state bit. The next poll call
2153 * will then be able to pass the RX data back up.
2156 static void stli_unthrottle(struct tty_struct *tty)
2161 printk("stli_unthrottle(tty=%x)\n", (int) tty);
2164 if (tty == (struct tty_struct *) NULL)
2166 portp = tty->driver_data;
2167 if (portp == (stliport_t *) NULL)
2170 clear_bit(ST_RXSTOP, &portp->state);
2173 /*****************************************************************************/
2176 * Stop the transmitter. Basically to do this we will just turn TX
2180 static void stli_stop(struct tty_struct *tty)
2187 printk("stli_stop(tty=%x)\n", (int) tty);
2190 if (tty == (struct tty_struct *) NULL)
2192 portp = tty->driver_data;
2193 if (portp == (stliport_t *) NULL)
2195 if ((portp->brdnr < 0) || (portp->brdnr >= stli_nrbrds))
2197 brdp = stli_brds[portp->brdnr];
2198 if (brdp == (stlibrd_t *) NULL)
2201 memset(&actrl, 0, sizeof(asyctrl_t));
2202 actrl.txctrl = CT_STOPFLOW;
2204 stli_cmdwait(brdp, portp, A_PORTCTRL, &actrl, sizeof(asyctrl_t), 0);
2208 /*****************************************************************************/
2211 * Start the transmitter again. Just turn TX interrupts back on.
2214 static void stli_start(struct tty_struct *tty)
2221 printk("stli_start(tty=%x)\n", (int) tty);
2224 if (tty == (struct tty_struct *) NULL)
2226 portp = tty->driver_data;
2227 if (portp == (stliport_t *) NULL)
2229 if ((portp->brdnr < 0) || (portp->brdnr >= stli_nrbrds))
2231 brdp = stli_brds[portp->brdnr];
2232 if (brdp == (stlibrd_t *) NULL)
2235 memset(&actrl, 0, sizeof(asyctrl_t));
2236 actrl.txctrl = CT_STARTFLOW;
2238 stli_cmdwait(brdp, portp, A_PORTCTRL, &actrl, sizeof(asyctrl_t), 0);
2242 /*****************************************************************************/
2245 * Scheduler called hang up routine. This is called from the scheduler,
2246 * not direct from the driver "poll" routine. We can't call it there
2247 * since the real local hangup code will enable/disable the board and
2248 * other things that we can't do while handling the poll. Much easier
2249 * to deal with it some time later (don't really care when, hangups
2250 * aren't that time critical).
2253 static void stli_dohangup(void *arg)
2258 printk(KERN_DEBUG "stli_dohangup(portp=%x)\n", (int) arg);
2262 * FIXME: There's a module removal race here: tty_hangup
2263 * calls schedule_work which will call into this
2266 portp = (stliport_t *) arg;
2267 if (portp != (stliport_t *) NULL) {
2268 if (portp->tty != (struct tty_struct *) NULL) {
2269 tty_hangup(portp->tty);
2274 /*****************************************************************************/
2277 * Hangup this port. This is pretty much like closing the port, only
2278 * a little more brutal. No waiting for data to drain. Shutdown the
2279 * port and maybe drop signals. This is rather tricky really. We want
2280 * to close the port as well.
2283 static void stli_hangup(struct tty_struct *tty)
2287 unsigned long flags;
2290 printk(KERN_DEBUG "stli_hangup(tty=%x)\n", (int) tty);
2293 if (tty == (struct tty_struct *) NULL)
2295 portp = tty->driver_data;
2296 if (portp == (stliport_t *) NULL)
2298 if ((portp->brdnr < 0) || (portp->brdnr >= stli_nrbrds))
2300 brdp = stli_brds[portp->brdnr];
2301 if (brdp == (stlibrd_t *) NULL)
2304 portp->flags &= ~ASYNC_INITIALIZED;
2308 if (! test_bit(ST_CLOSING, &portp->state))
2309 stli_rawclose(brdp, portp, 0, 0);
2310 if (tty->termios->c_cflag & HUPCL) {
2311 stli_mkasysigs(&portp->asig, 0, 0);
2312 if (test_bit(ST_CMDING, &portp->state)) {
2313 set_bit(ST_DOSIGS, &portp->state);
2314 set_bit(ST_DOFLUSHTX, &portp->state);
2315 set_bit(ST_DOFLUSHRX, &portp->state);
2317 stli_sendcmd(brdp, portp, A_SETSIGNALSF,
2318 &portp->asig, sizeof(asysigs_t), 0);
2321 restore_flags(flags);
2323 clear_bit(ST_TXBUSY, &portp->state);
2324 clear_bit(ST_RXSTOP, &portp->state);
2325 set_bit(TTY_IO_ERROR, &tty->flags);
2326 portp->tty = (struct tty_struct *) NULL;
2327 portp->flags &= ~ASYNC_NORMAL_ACTIVE;
2328 portp->refcount = 0;
2329 wake_up_interruptible(&portp->open_wait);
2332 /*****************************************************************************/
2335 * Flush characters from the lower buffer. We may not have user context
2336 * so we cannot sleep waiting for it to complete. Also we need to check
2337 * if there is chars for this port in the TX cook buffer, and flush them
2341 static void stli_flushbuffer(struct tty_struct *tty)
2345 unsigned long ftype, flags;
2348 printk(KERN_DEBUG "stli_flushbuffer(tty=%x)\n", (int) tty);
2351 if (tty == (struct tty_struct *) NULL)
2353 portp = tty->driver_data;
2354 if (portp == (stliport_t *) NULL)
2356 if ((portp->brdnr < 0) || (portp->brdnr >= stli_nrbrds))
2358 brdp = stli_brds[portp->brdnr];
2359 if (brdp == (stlibrd_t *) NULL)
2364 if (tty == stli_txcooktty) {
2365 stli_txcooktty = (struct tty_struct *) NULL;
2366 stli_txcooksize = 0;
2367 stli_txcookrealsize = 0;
2369 if (test_bit(ST_CMDING, &portp->state)) {
2370 set_bit(ST_DOFLUSHTX, &portp->state);
2373 if (test_bit(ST_DOFLUSHRX, &portp->state)) {
2375 clear_bit(ST_DOFLUSHRX, &portp->state);
2377 stli_sendcmd(brdp, portp, A_FLUSH, &ftype,
2378 sizeof(unsigned long), 0);
2380 restore_flags(flags);
2382 wake_up_interruptible(&tty->write_wait);
2383 if ((tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) &&
2384 tty->ldisc.write_wakeup)
2385 (tty->ldisc.write_wakeup)(tty);
2388 /*****************************************************************************/
2390 static void stli_breakctl(struct tty_struct *tty, int state)
2395 /* long savestate, savetime; */
2398 printk(KERN_DEBUG "stli_breakctl(tty=%x,state=%d)\n", (int) tty, state);
2401 if (tty == (struct tty_struct *) NULL)
2403 portp = tty->driver_data;
2404 if (portp == (stliport_t *) NULL)
2406 if ((portp->brdnr < 0) || (portp->brdnr >= stli_nrbrds))
2408 brdp = stli_brds[portp->brdnr];
2409 if (brdp == (stlibrd_t *) NULL)
2413 * Due to a bug in the tty send_break() code we need to preserve
2414 * the current process state and timeout...
2415 savetime = current->timeout;
2416 savestate = current->state;
2419 arg = (state == -1) ? BREAKON : BREAKOFF;
2420 stli_cmdwait(brdp, portp, A_BREAK, &arg, sizeof(long), 0);
2424 current->timeout = savetime;
2425 current->state = savestate;
2429 /*****************************************************************************/
2431 static void stli_waituntilsent(struct tty_struct *tty, int timeout)
2437 printk(KERN_DEBUG "stli_waituntilsent(tty=%x,timeout=%x)\n", (int) tty, timeout);
2440 if (tty == (struct tty_struct *) NULL)
2442 portp = tty->driver_data;
2443 if (portp == (stliport_t *) NULL)
2448 tend = jiffies + timeout;
2450 while (test_bit(ST_TXBUSY, &portp->state)) {
2451 if (signal_pending(current))
2453 msleep_interruptible(20);
2454 if (time_after_eq(jiffies, tend))
2459 /*****************************************************************************/
2461 static void stli_sendxchar(struct tty_struct *tty, char ch)
2468 printk(KERN_DEBUG "stli_sendxchar(tty=%x,ch=%x)\n", (int) tty, ch);
2471 if (tty == (struct tty_struct *) NULL)
2473 portp = tty->driver_data;
2474 if (portp == (stliport_t *) NULL)
2476 if ((portp->brdnr < 0) || (portp->brdnr >= stli_nrbrds))
2478 brdp = stli_brds[portp->brdnr];
2479 if (brdp == (stlibrd_t *) NULL)
2482 memset(&actrl, 0, sizeof(asyctrl_t));
2483 if (ch == STOP_CHAR(tty)) {
2484 actrl.rxctrl = CT_STOPFLOW;
2485 } else if (ch == START_CHAR(tty)) {
2486 actrl.rxctrl = CT_STARTFLOW;
2488 actrl.txctrl = CT_SENDCHR;
2492 stli_cmdwait(brdp, portp, A_PORTCTRL, &actrl, sizeof(asyctrl_t), 0);
2495 /*****************************************************************************/
2500 * Format info for a specified port. The line is deliberately limited
2501 * to 80 characters. (If it is too long it will be truncated, if too
2502 * short then padded with spaces).
2505 static int stli_portinfo(stlibrd_t *brdp, stliport_t *portp, int portnr, char *pos)
2510 rc = stli_portcmdstats(portp);
2513 if (brdp->state & BST_STARTED) {
2514 switch (stli_comstats.hwid) {
2515 case 0: uart = "2681"; break;
2516 case 1: uart = "SC26198"; break;
2517 default: uart = "CD1400"; break;
2522 sp += sprintf(sp, "%d: uart:%s ", portnr, uart);
2524 if ((brdp->state & BST_STARTED) && (rc >= 0)) {
2525 sp += sprintf(sp, "tx:%d rx:%d", (int) stli_comstats.txtotal,
2526 (int) stli_comstats.rxtotal);
2528 if (stli_comstats.rxframing)
2529 sp += sprintf(sp, " fe:%d",
2530 (int) stli_comstats.rxframing);
2531 if (stli_comstats.rxparity)
2532 sp += sprintf(sp, " pe:%d",
2533 (int) stli_comstats.rxparity);
2534 if (stli_comstats.rxbreaks)
2535 sp += sprintf(sp, " brk:%d",
2536 (int) stli_comstats.rxbreaks);
2537 if (stli_comstats.rxoverrun)
2538 sp += sprintf(sp, " oe:%d",
2539 (int) stli_comstats.rxoverrun);
2541 cnt = sprintf(sp, "%s%s%s%s%s ",
2542 (stli_comstats.signals & TIOCM_RTS) ? "|RTS" : "",
2543 (stli_comstats.signals & TIOCM_CTS) ? "|CTS" : "",
2544 (stli_comstats.signals & TIOCM_DTR) ? "|DTR" : "",
2545 (stli_comstats.signals & TIOCM_CD) ? "|DCD" : "",
2546 (stli_comstats.signals & TIOCM_DSR) ? "|DSR" : "");
2551 for (cnt = (sp - pos); (cnt < (MAXLINE - 1)); cnt++)
2554 pos[(MAXLINE - 2)] = '+';
2555 pos[(MAXLINE - 1)] = '\n';
2560 /*****************************************************************************/
2563 * Port info, read from the /proc file system.
2566 static int stli_readproc(char *page, char **start, off_t off, int count, int *eof, void *data)
2570 int brdnr, portnr, totalport;
2575 printk(KERN_DEBUG "stli_readproc(page=%x,start=%x,off=%x,count=%d,eof=%x,"
2576 "data=%x\n", (int) page, (int) start, (int) off, count,
2577 (int) eof, (int) data);
2585 pos += sprintf(pos, "%s: version %s", stli_drvtitle,
2587 while (pos < (page + MAXLINE - 1))
2594 * We scan through for each board, panel and port. The offset is
2595 * calculated on the fly, and irrelevant ports are skipped.
2597 for (brdnr = 0; (brdnr < stli_nrbrds); brdnr++) {
2598 brdp = stli_brds[brdnr];
2599 if (brdp == (stlibrd_t *) NULL)
2601 if (brdp->state == 0)
2604 maxoff = curoff + (brdp->nrports * MAXLINE);
2605 if (off >= maxoff) {
2610 totalport = brdnr * STL_MAXPORTS;
2611 for (portnr = 0; (portnr < brdp->nrports); portnr++,
2613 portp = brdp->ports[portnr];
2614 if (portp == (stliport_t *) NULL)
2616 if (off >= (curoff += MAXLINE))
2618 if ((pos - page + MAXLINE) > count)
2620 pos += stli_portinfo(brdp, portp, totalport, pos);
2631 /*****************************************************************************/
2634 * Generic send command routine. This will send a message to the slave,
2635 * of the specified type with the specified argument. Must be very
2636 * careful of data that will be copied out from shared memory -
2637 * containing command results. The command completion is all done from
2638 * a poll routine that does not have user context. Therefore you cannot
2639 * copy back directly into user space, or to the kernel stack of a
2640 * process. This routine does not sleep, so can be called from anywhere.
2643 static void stli_sendcmd(stlibrd_t *brdp, stliport_t *portp, unsigned long cmd, void *arg, int size, int copyback)
2645 volatile cdkhdr_t *hdrp;
2646 volatile cdkctrl_t *cp;
2647 volatile unsigned char *bits;
2648 unsigned long flags;
2651 printk(KERN_DEBUG "stli_sendcmd(brdp=%x,portp=%x,cmd=%x,arg=%x,size=%d,"
2652 "copyback=%d)\n", (int) brdp, (int) portp, (int) cmd,
2653 (int) arg, size, copyback);
2659 if (test_bit(ST_CMDING, &portp->state)) {
2660 printk(KERN_ERR "STALLION: command already busy, cmd=%x!\n",
2662 restore_flags(flags);
2667 cp = &((volatile cdkasy_t *) EBRDGETMEMPTR(brdp, portp->addr))->ctrl;
2669 memcpy((void *) &(cp->args[0]), arg, size);
2672 portp->argsize = size;
2677 hdrp = (volatile cdkhdr_t *) EBRDGETMEMPTR(brdp, CDK_CDKADDR);
2678 bits = ((volatile unsigned char *) hdrp) + brdp->slaveoffset +
2680 *bits |= portp->portbit;
2681 set_bit(ST_CMDING, &portp->state);
2683 restore_flags(flags);
2686 /*****************************************************************************/
2689 * Read data from shared memory. This assumes that the shared memory
2690 * is enabled and that interrupts are off. Basically we just empty out
2691 * the shared memory buffer into the tty buffer. Must be careful to
2692 * handle the case where we fill up the tty buffer, but still have
2693 * more chars to unload.
2696 static void stli_read(stlibrd_t *brdp, stliport_t *portp)
2698 volatile cdkasyrq_t *rp;
2699 volatile char *shbuf;
2700 struct tty_struct *tty;
2701 unsigned int head, tail, size;
2702 unsigned int len, stlen;
2705 printk(KERN_DEBUG "stli_read(brdp=%x,portp=%d)\n",
2706 (int) brdp, (int) portp);
2709 if (test_bit(ST_RXSTOP, &portp->state))
2712 if (tty == (struct tty_struct *) NULL)
2715 rp = &((volatile cdkasy_t *) EBRDGETMEMPTR(brdp, portp->addr))->rxq;
2716 head = (unsigned int) rp->head;
2717 if (head != ((unsigned int) rp->head))
2718 head = (unsigned int) rp->head;
2719 tail = (unsigned int) rp->tail;
2720 size = portp->rxsize;
2725 len = size - (tail - head);
2726 stlen = size - tail;
2729 len = MIN(len, (TTY_FLIPBUF_SIZE - tty->flip.count));
2730 shbuf = (volatile char *) EBRDGETMEMPTR(brdp, portp->rxoffset);
2733 stlen = MIN(len, stlen);
2734 memcpy(tty->flip.char_buf_ptr, (char *) (shbuf + tail), stlen);
2735 memset(tty->flip.flag_buf_ptr, 0, stlen);
2736 tty->flip.char_buf_ptr += stlen;
2737 tty->flip.flag_buf_ptr += stlen;
2738 tty->flip.count += stlen;
2747 rp = &((volatile cdkasy_t *) EBRDGETMEMPTR(brdp, portp->addr))->rxq;
2751 set_bit(ST_RXING, &portp->state);
2753 tty_schedule_flip(tty);
2756 /*****************************************************************************/
2759 * Set up and carry out any delayed commands. There is only a small set
2760 * of slave commands that can be done "off-level". So it is not too
2761 * difficult to deal with them here.
2764 static void stli_dodelaycmd(stliport_t *portp, volatile cdkctrl_t *cp)
2768 if (test_bit(ST_DOSIGS, &portp->state)) {
2769 if (test_bit(ST_DOFLUSHTX, &portp->state) &&
2770 test_bit(ST_DOFLUSHRX, &portp->state))
2771 cmd = A_SETSIGNALSF;
2772 else if (test_bit(ST_DOFLUSHTX, &portp->state))
2773 cmd = A_SETSIGNALSFTX;
2774 else if (test_bit(ST_DOFLUSHRX, &portp->state))
2775 cmd = A_SETSIGNALSFRX;
2778 clear_bit(ST_DOFLUSHTX, &portp->state);
2779 clear_bit(ST_DOFLUSHRX, &portp->state);
2780 clear_bit(ST_DOSIGS, &portp->state);
2781 memcpy((void *) &(cp->args[0]), (void *) &portp->asig,
2785 set_bit(ST_CMDING, &portp->state);
2786 } else if (test_bit(ST_DOFLUSHTX, &portp->state) ||
2787 test_bit(ST_DOFLUSHRX, &portp->state)) {
2788 cmd = ((test_bit(ST_DOFLUSHTX, &portp->state)) ? FLUSHTX : 0);
2789 cmd |= ((test_bit(ST_DOFLUSHRX, &portp->state)) ? FLUSHRX : 0);
2790 clear_bit(ST_DOFLUSHTX, &portp->state);
2791 clear_bit(ST_DOFLUSHRX, &portp->state);
2792 memcpy((void *) &(cp->args[0]), (void *) &cmd, sizeof(int));
2795 set_bit(ST_CMDING, &portp->state);
2799 /*****************************************************************************/
2802 * Host command service checking. This handles commands or messages
2803 * coming from the slave to the host. Must have board shared memory
2804 * enabled and interrupts off when called. Notice that by servicing the
2805 * read data last we don't need to change the shared memory pointer
2806 * during processing (which is a slow IO operation).
2807 * Return value indicates if this port is still awaiting actions from
2808 * the slave (like open, command, or even TX data being sent). If 0
2809 * then port is still busy, otherwise no longer busy.
2812 static int stli_hostcmd(stlibrd_t *brdp, stliport_t *portp)
2814 volatile cdkasy_t *ap;
2815 volatile cdkctrl_t *cp;
2816 struct tty_struct *tty;
2818 unsigned long oldsigs;
2822 printk(KERN_DEBUG "stli_hostcmd(brdp=%x,channr=%d)\n",
2823 (int) brdp, channr);
2826 ap = (volatile cdkasy_t *) EBRDGETMEMPTR(brdp, portp->addr);
2830 * Check if we are waiting for an open completion message.
2832 if (test_bit(ST_OPENING, &portp->state)) {
2833 rc = (int) cp->openarg;
2834 if ((cp->open == 0) && (rc != 0)) {
2839 clear_bit(ST_OPENING, &portp->state);
2840 wake_up_interruptible(&portp->raw_wait);
2845 * Check if we are waiting for a close completion message.
2847 if (test_bit(ST_CLOSING, &portp->state)) {
2848 rc = (int) cp->closearg;
2849 if ((cp->close == 0) && (rc != 0)) {
2854 clear_bit(ST_CLOSING, &portp->state);
2855 wake_up_interruptible(&portp->raw_wait);
2860 * Check if we are waiting for a command completion message. We may
2861 * need to copy out the command results associated with this command.
2863 if (test_bit(ST_CMDING, &portp->state)) {
2865 if ((cp->cmd == 0) && (rc != 0)) {
2868 if (portp->argp != (void *) NULL) {
2869 memcpy(portp->argp, (void *) &(cp->args[0]),
2871 portp->argp = (void *) NULL;
2875 clear_bit(ST_CMDING, &portp->state);
2876 stli_dodelaycmd(portp, cp);
2877 wake_up_interruptible(&portp->raw_wait);
2882 * Check for any notification messages ready. This includes lots of
2883 * different types of events - RX chars ready, RX break received,
2884 * TX data low or empty in the slave, modem signals changed state.
2893 if (nt.signal & SG_DCD) {
2894 oldsigs = portp->sigs;
2895 portp->sigs = stli_mktiocm(nt.sigvalue);
2896 clear_bit(ST_GETSIGS, &portp->state);
2897 if ((portp->sigs & TIOCM_CD) &&
2898 ((oldsigs & TIOCM_CD) == 0))
2899 wake_up_interruptible(&portp->open_wait);
2900 if ((oldsigs & TIOCM_CD) &&
2901 ((portp->sigs & TIOCM_CD) == 0)) {
2902 if (portp->flags & ASYNC_CHECK_CD) {
2904 schedule_work(&portp->tqhangup);
2909 if (nt.data & DT_TXEMPTY)
2910 clear_bit(ST_TXBUSY, &portp->state);
2911 if (nt.data & (DT_TXEMPTY | DT_TXLOW)) {
2912 if (tty != (struct tty_struct *) NULL) {
2913 if ((tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) &&
2914 tty->ldisc.write_wakeup) {
2915 (tty->ldisc.write_wakeup)(tty);
2918 wake_up_interruptible(&tty->write_wait);
2922 if ((nt.data & DT_RXBREAK) && (portp->rxmarkmsk & BRKINT)) {
2923 if (tty != (struct tty_struct *) NULL) {
2924 if (tty->flip.count < TTY_FLIPBUF_SIZE) {
2926 *tty->flip.flag_buf_ptr++ = TTY_BREAK;
2927 *tty->flip.char_buf_ptr++ = 0;
2928 if (portp->flags & ASYNC_SAK) {
2932 tty_schedule_flip(tty);
2937 if (nt.data & DT_RXBUSY) {
2939 stli_read(brdp, portp);
2944 * It might seem odd that we are checking for more RX chars here.
2945 * But, we need to handle the case where the tty buffer was previously
2946 * filled, but we had more characters to pass up. The slave will not
2947 * send any more RX notify messages until the RX buffer has been emptied.
2948 * But it will leave the service bits on (since the buffer is not empty).
2949 * So from here we can try to process more RX chars.
2951 if ((!donerx) && test_bit(ST_RXING, &portp->state)) {
2952 clear_bit(ST_RXING, &portp->state);
2953 stli_read(brdp, portp);
2956 return((test_bit(ST_OPENING, &portp->state) ||
2957 test_bit(ST_CLOSING, &portp->state) ||
2958 test_bit(ST_CMDING, &portp->state) ||
2959 test_bit(ST_TXBUSY, &portp->state) ||
2960 test_bit(ST_RXING, &portp->state)) ? 0 : 1);
2963 /*****************************************************************************/
2966 * Service all ports on a particular board. Assumes that the boards
2967 * shared memory is enabled, and that the page pointer is pointed
2968 * at the cdk header structure.
2971 static void stli_brdpoll(stlibrd_t *brdp, volatile cdkhdr_t *hdrp)
2974 unsigned char hostbits[(STL_MAXCHANS / 8) + 1];
2975 unsigned char slavebits[(STL_MAXCHANS / 8) + 1];
2976 unsigned char *slavep;
2977 int bitpos, bitat, bitsize;
2978 int channr, nrdevs, slavebitchange;
2980 bitsize = brdp->bitsize;
2981 nrdevs = brdp->nrdevs;
2984 * Check if slave wants any service. Basically we try to do as
2985 * little work as possible here. There are 2 levels of service
2986 * bits. So if there is nothing to do we bail early. We check
2987 * 8 service bits at a time in the inner loop, so we can bypass
2988 * the lot if none of them want service.
2990 memcpy(&hostbits[0], (((unsigned char *) hdrp) + brdp->hostoffset),
2993 memset(&slavebits[0], 0, bitsize);
2996 for (bitpos = 0; (bitpos < bitsize); bitpos++) {
2997 if (hostbits[bitpos] == 0)
2999 channr = bitpos * 8;
3000 for (bitat = 0x1; (channr < nrdevs); channr++, bitat <<= 1) {
3001 if (hostbits[bitpos] & bitat) {
3002 portp = brdp->ports[(channr - 1)];
3003 if (stli_hostcmd(brdp, portp)) {
3005 slavebits[bitpos] |= bitat;
3012 * If any of the ports are no longer busy then update them in the
3013 * slave request bits. We need to do this after, since a host port
3014 * service may initiate more slave requests.
3016 if (slavebitchange) {
3017 hdrp = (volatile cdkhdr_t *) EBRDGETMEMPTR(brdp, CDK_CDKADDR);
3018 slavep = ((unsigned char *) hdrp) + brdp->slaveoffset;
3019 for (bitpos = 0; (bitpos < bitsize); bitpos++) {
3020 if (slavebits[bitpos])
3021 slavep[bitpos] &= ~slavebits[bitpos];
3026 /*****************************************************************************/
3029 * Driver poll routine. This routine polls the boards in use and passes
3030 * messages back up to host when necessary. This is actually very
3031 * CPU efficient, since we will always have the kernel poll clock, it
3032 * adds only a few cycles when idle (since board service can be
3033 * determined very easily), but when loaded generates no interrupts
3034 * (with their expensive associated context change).
3037 static void stli_poll(unsigned long arg)
3039 volatile cdkhdr_t *hdrp;
3043 stli_timerlist.expires = STLI_TIMEOUT;
3044 add_timer(&stli_timerlist);
3047 * Check each board and do any servicing required.
3049 for (brdnr = 0; (brdnr < stli_nrbrds); brdnr++) {
3050 brdp = stli_brds[brdnr];
3051 if (brdp == (stlibrd_t *) NULL)
3053 if ((brdp->state & BST_STARTED) == 0)
3057 hdrp = (volatile cdkhdr_t *) EBRDGETMEMPTR(brdp, CDK_CDKADDR);
3059 stli_brdpoll(brdp, hdrp);
3064 /*****************************************************************************/
3067 * Translate the termios settings into the port setting structure of
3071 static void stli_mkasyport(stliport_t *portp, asyport_t *pp, struct termios *tiosp)
3074 printk(KERN_DEBUG "stli_mkasyport(portp=%x,pp=%x,tiosp=%d)\n",
3075 (int) portp, (int) pp, (int) tiosp);
3078 memset(pp, 0, sizeof(asyport_t));
3081 * Start of by setting the baud, char size, parity and stop bit info.
3083 pp->baudout = tiosp->c_cflag & CBAUD;
3084 if (pp->baudout & CBAUDEX) {
3085 pp->baudout &= ~CBAUDEX;
3086 if ((pp->baudout < 1) || (pp->baudout > 4))
3087 tiosp->c_cflag &= ~CBAUDEX;
3091 pp->baudout = stli_baudrates[pp->baudout];
3092 if ((tiosp->c_cflag & CBAUD) == B38400) {
3093 if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
3094 pp->baudout = 57600;
3095 else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
3096 pp->baudout = 115200;
3097 else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
3098 pp->baudout = 230400;
3099 else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
3100 pp->baudout = 460800;
3101 else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST)
3102 pp->baudout = (portp->baud_base / portp->custom_divisor);
3104 if (pp->baudout > STL_MAXBAUD)
3105 pp->baudout = STL_MAXBAUD;
3106 pp->baudin = pp->baudout;
3108 switch (tiosp->c_cflag & CSIZE) {
3123 if (tiosp->c_cflag & CSTOPB)
3124 pp->stopbs = PT_STOP2;
3126 pp->stopbs = PT_STOP1;
3128 if (tiosp->c_cflag & PARENB) {
3129 if (tiosp->c_cflag & PARODD)
3130 pp->parity = PT_ODDPARITY;
3132 pp->parity = PT_EVENPARITY;
3134 pp->parity = PT_NOPARITY;
3138 * Set up any flow control options enabled.
3140 if (tiosp->c_iflag & IXON) {
3142 if (tiosp->c_iflag & IXANY)
3143 pp->flow |= F_IXANY;
3145 if (tiosp->c_cflag & CRTSCTS)
3146 pp->flow |= (F_RTSFLOW | F_CTSFLOW);
3148 pp->startin = tiosp->c_cc[VSTART];
3149 pp->stopin = tiosp->c_cc[VSTOP];
3150 pp->startout = tiosp->c_cc[VSTART];
3151 pp->stopout = tiosp->c_cc[VSTOP];
3154 * Set up the RX char marking mask with those RX error types we must
3155 * catch. We can get the slave to help us out a little here, it will
3156 * ignore parity errors and breaks for us, and mark parity errors in
3159 if (tiosp->c_iflag & IGNPAR)
3160 pp->iflag |= FI_IGNRXERRS;
3161 if (tiosp->c_iflag & IGNBRK)
3162 pp->iflag |= FI_IGNBREAK;
3164 portp->rxmarkmsk = 0;
3165 if (tiosp->c_iflag & (INPCK | PARMRK))
3166 pp->iflag |= FI_1MARKRXERRS;
3167 if (tiosp->c_iflag & BRKINT)
3168 portp->rxmarkmsk |= BRKINT;
3171 * Set up clocal processing as required.
3173 if (tiosp->c_cflag & CLOCAL)
3174 portp->flags &= ~ASYNC_CHECK_CD;
3176 portp->flags |= ASYNC_CHECK_CD;
3179 * Transfer any persistent flags into the asyport structure.
3181 pp->pflag = (portp->pflag & 0xffff);
3182 pp->vmin = (portp->pflag & P_RXIMIN) ? 1 : 0;
3183 pp->vtime = (portp->pflag & P_RXITIME) ? 1 : 0;
3184 pp->cc[1] = (portp->pflag & P_RXTHOLD) ? 1 : 0;
3187 /*****************************************************************************/
3190 * Construct a slave signals structure for setting the DTR and RTS
3191 * signals as specified.
3194 static void stli_mkasysigs(asysigs_t *sp, int dtr, int rts)
3197 printk(KERN_DEBUG "stli_mkasysigs(sp=%x,dtr=%d,rts=%d)\n",
3198 (int) sp, dtr, rts);
3201 memset(sp, 0, sizeof(asysigs_t));
3203 sp->signal |= SG_DTR;
3204 sp->sigvalue |= ((dtr > 0) ? SG_DTR : 0);
3207 sp->signal |= SG_RTS;
3208 sp->sigvalue |= ((rts > 0) ? SG_RTS : 0);
3212 /*****************************************************************************/
3215 * Convert the signals returned from the slave into a local TIOCM type
3216 * signals value. We keep them locally in TIOCM format.
3219 static long stli_mktiocm(unsigned long sigvalue)
3224 printk(KERN_DEBUG "stli_mktiocm(sigvalue=%x)\n", (int) sigvalue);
3228 tiocm |= ((sigvalue & SG_DCD) ? TIOCM_CD : 0);
3229 tiocm |= ((sigvalue & SG_CTS) ? TIOCM_CTS : 0);
3230 tiocm |= ((sigvalue & SG_RI) ? TIOCM_RI : 0);
3231 tiocm |= ((sigvalue & SG_DSR) ? TIOCM_DSR : 0);
3232 tiocm |= ((sigvalue & SG_DTR) ? TIOCM_DTR : 0);
3233 tiocm |= ((sigvalue & SG_RTS) ? TIOCM_RTS : 0);
3237 /*****************************************************************************/
3240 * All panels and ports actually attached have been worked out. All
3241 * we need to do here is set up the appropriate per port data structures.
3244 static int stli_initports(stlibrd_t *brdp)
3247 int i, panelnr, panelport;
3250 printk(KERN_DEBUG "stli_initports(brdp=%x)\n", (int) brdp);
3253 for (i = 0, panelnr = 0, panelport = 0; (i < brdp->nrports); i++) {
3254 portp = (stliport_t *) stli_memalloc(sizeof(stliport_t));
3255 if (portp == (stliport_t *) NULL) {
3256 printk("STALLION: failed to allocate port structure\n");
3260 memset(portp, 0, sizeof(stliport_t));
3261 portp->magic = STLI_PORTMAGIC;
3263 portp->brdnr = brdp->brdnr;
3264 portp->panelnr = panelnr;
3265 portp->baud_base = STL_BAUDBASE;
3266 portp->close_delay = STL_CLOSEDELAY;
3267 portp->closing_wait = 30 * HZ;
3268 INIT_WORK(&portp->tqhangup, stli_dohangup, portp);
3269 init_waitqueue_head(&portp->open_wait);
3270 init_waitqueue_head(&portp->close_wait);
3271 init_waitqueue_head(&portp->raw_wait);
3273 if (panelport >= brdp->panels[panelnr]) {
3277 brdp->ports[i] = portp;
3283 /*****************************************************************************/
3286 * All the following routines are board specific hardware operations.
3289 static void stli_ecpinit(stlibrd_t *brdp)
3291 unsigned long memconf;
3294 printk(KERN_DEBUG "stli_ecpinit(brdp=%d)\n", (int) brdp);
3297 outb(ECP_ATSTOP, (brdp->iobase + ECP_ATCONFR));
3299 outb(ECP_ATDISABLE, (brdp->iobase + ECP_ATCONFR));
3302 memconf = (brdp->memaddr & ECP_ATADDRMASK) >> ECP_ATADDRSHFT;
3303 outb(memconf, (brdp->iobase + ECP_ATMEMAR));
3306 /*****************************************************************************/
3308 static void stli_ecpenable(stlibrd_t *brdp)
3311 printk(KERN_DEBUG "stli_ecpenable(brdp=%x)\n", (int) brdp);
3313 outb(ECP_ATENABLE, (brdp->iobase + ECP_ATCONFR));
3316 /*****************************************************************************/
3318 static void stli_ecpdisable(stlibrd_t *brdp)
3321 printk(KERN_DEBUG "stli_ecpdisable(brdp=%x)\n", (int) brdp);
3323 outb(ECP_ATDISABLE, (brdp->iobase + ECP_ATCONFR));
3326 /*****************************************************************************/
3328 static char *stli_ecpgetmemptr(stlibrd_t *brdp, unsigned long offset, int line)
3334 printk(KERN_DEBUG "stli_ecpgetmemptr(brdp=%x,offset=%x)\n", (int) brdp,
3338 if (offset > brdp->memsize) {
3339 printk(KERN_ERR "STALLION: shared memory pointer=%x out of "
3340 "range at line=%d(%d), brd=%d\n",
3341 (int) offset, line, __LINE__, brdp->brdnr);
3345 ptr = brdp->membase + (offset % ECP_ATPAGESIZE);
3346 val = (unsigned char) (offset / ECP_ATPAGESIZE);
3348 outb(val, (brdp->iobase + ECP_ATMEMPR));
3352 /*****************************************************************************/
3354 static void stli_ecpreset(stlibrd_t *brdp)
3357 printk(KERN_DEBUG "stli_ecpreset(brdp=%x)\n", (int) brdp);
3360 outb(ECP_ATSTOP, (brdp->iobase + ECP_ATCONFR));
3362 outb(ECP_ATDISABLE, (brdp->iobase + ECP_ATCONFR));
3366 /*****************************************************************************/
3368 static void stli_ecpintr(stlibrd_t *brdp)
3371 printk(KERN_DEBUG "stli_ecpintr(brdp=%x)\n", (int) brdp);
3373 outb(0x1, brdp->iobase);
3376 /*****************************************************************************/
3379 * The following set of functions act on ECP EISA boards.
3382 static void stli_ecpeiinit(stlibrd_t *brdp)
3384 unsigned long memconf;
3387 printk(KERN_DEBUG "stli_ecpeiinit(brdp=%x)\n", (int) brdp);
3390 outb(0x1, (brdp->iobase + ECP_EIBRDENAB));
3391 outb(ECP_EISTOP, (brdp->iobase + ECP_EICONFR));
3393 outb(ECP_EIDISABLE, (brdp->iobase + ECP_EICONFR));
3396 memconf = (brdp->memaddr & ECP_EIADDRMASKL) >> ECP_EIADDRSHFTL;
3397 outb(memconf, (brdp->iobase + ECP_EIMEMARL));
3398 memconf = (brdp->memaddr & ECP_EIADDRMASKH) >> ECP_EIADDRSHFTH;
3399 outb(memconf, (brdp->iobase + ECP_EIMEMARH));
3402 /*****************************************************************************/
3404 static void stli_ecpeienable(stlibrd_t *brdp)
3406 outb(ECP_EIENABLE, (brdp->iobase + ECP_EICONFR));
3409 /*****************************************************************************/
3411 static void stli_ecpeidisable(stlibrd_t *brdp)
3413 outb(ECP_EIDISABLE, (brdp->iobase + ECP_EICONFR));
3416 /*****************************************************************************/
3418 static char *stli_ecpeigetmemptr(stlibrd_t *brdp, unsigned long offset, int line)
3424 printk(KERN_DEBUG "stli_ecpeigetmemptr(brdp=%x,offset=%x,line=%d)\n",
3425 (int) brdp, (int) offset, line);
3428 if (offset > brdp->memsize) {
3429 printk(KERN_ERR "STALLION: shared memory pointer=%x out of "
3430 "range at line=%d(%d), brd=%d\n",
3431 (int) offset, line, __LINE__, brdp->brdnr);
3435 ptr = brdp->membase + (offset % ECP_EIPAGESIZE);
3436 if (offset < ECP_EIPAGESIZE)
3439 val = ECP_EIENABLE | 0x40;
3441 outb(val, (brdp->iobase + ECP_EICONFR));
3445 /*****************************************************************************/
3447 static void stli_ecpeireset(stlibrd_t *brdp)
3449 outb(ECP_EISTOP, (brdp->iobase + ECP_EICONFR));
3451 outb(ECP_EIDISABLE, (brdp->iobase + ECP_EICONFR));
3455 /*****************************************************************************/
3458 * The following set of functions act on ECP MCA boards.
3461 static void stli_ecpmcenable(stlibrd_t *brdp)
3463 outb(ECP_MCENABLE, (brdp->iobase + ECP_MCCONFR));
3466 /*****************************************************************************/
3468 static void stli_ecpmcdisable(stlibrd_t *brdp)
3470 outb(ECP_MCDISABLE, (brdp->iobase + ECP_MCCONFR));
3473 /*****************************************************************************/
3475 static char *stli_ecpmcgetmemptr(stlibrd_t *brdp, unsigned long offset, int line)
3480 if (offset > brdp->memsize) {
3481 printk(KERN_ERR "STALLION: shared memory pointer=%x out of "
3482 "range at line=%d(%d), brd=%d\n",
3483 (int) offset, line, __LINE__, brdp->brdnr);
3487 ptr = brdp->membase + (offset % ECP_MCPAGESIZE);
3488 val = ((unsigned char) (offset / ECP_MCPAGESIZE)) | ECP_MCENABLE;
3490 outb(val, (brdp->iobase + ECP_MCCONFR));
3494 /*****************************************************************************/
3496 static void stli_ecpmcreset(stlibrd_t *brdp)
3498 outb(ECP_MCSTOP, (brdp->iobase + ECP_MCCONFR));
3500 outb(ECP_MCDISABLE, (brdp->iobase + ECP_MCCONFR));
3504 /*****************************************************************************/
3507 * The following set of functions act on ECP PCI boards.
3510 static void stli_ecppciinit(stlibrd_t *brdp)
3513 printk(KERN_DEBUG "stli_ecppciinit(brdp=%x)\n", (int) brdp);
3516 outb(ECP_PCISTOP, (brdp->iobase + ECP_PCICONFR));
3518 outb(0, (brdp->iobase + ECP_PCICONFR));
3522 /*****************************************************************************/
3524 static char *stli_ecppcigetmemptr(stlibrd_t *brdp, unsigned long offset, int line)
3530 printk(KERN_DEBUG "stli_ecppcigetmemptr(brdp=%x,offset=%x,line=%d)\n",
3531 (int) brdp, (int) offset, line);
3534 if (offset > brdp->memsize) {
3535 printk(KERN_ERR "STALLION: shared memory pointer=%x out of "
3536 "range at line=%d(%d), board=%d\n",
3537 (int) offset, line, __LINE__, brdp->brdnr);
3541 ptr = brdp->membase + (offset % ECP_PCIPAGESIZE);
3542 val = (offset / ECP_PCIPAGESIZE) << 1;
3544 outb(val, (brdp->iobase + ECP_PCICONFR));
3548 /*****************************************************************************/
3550 static void stli_ecppcireset(stlibrd_t *brdp)
3552 outb(ECP_PCISTOP, (brdp->iobase + ECP_PCICONFR));
3554 outb(0, (brdp->iobase + ECP_PCICONFR));
3558 /*****************************************************************************/
3561 * The following routines act on ONboards.
3564 static void stli_onbinit(stlibrd_t *brdp)
3566 unsigned long memconf;
3569 printk(KERN_DEBUG "stli_onbinit(brdp=%d)\n", (int) brdp);
3572 outb(ONB_ATSTOP, (brdp->iobase + ONB_ATCONFR));
3574 outb(ONB_ATDISABLE, (brdp->iobase + ONB_ATCONFR));
3577 memconf = (brdp->memaddr & ONB_ATADDRMASK) >> ONB_ATADDRSHFT;
3578 outb(memconf, (brdp->iobase + ONB_ATMEMAR));
3579 outb(0x1, brdp->iobase);
3583 /*****************************************************************************/
3585 static void stli_onbenable(stlibrd_t *brdp)
3588 printk(KERN_DEBUG "stli_onbenable(brdp=%x)\n", (int) brdp);
3590 outb((brdp->enabval | ONB_ATENABLE), (brdp->iobase + ONB_ATCONFR));
3593 /*****************************************************************************/
3595 static void stli_onbdisable(stlibrd_t *brdp)
3598 printk(KERN_DEBUG "stli_onbdisable(brdp=%x)\n", (int) brdp);
3600 outb((brdp->enabval | ONB_ATDISABLE), (brdp->iobase + ONB_ATCONFR));
3603 /*****************************************************************************/
3605 static char *stli_onbgetmemptr(stlibrd_t *brdp, unsigned long offset, int line)
3610 printk(KERN_DEBUG "stli_onbgetmemptr(brdp=%x,offset=%x)\n", (int) brdp,
3614 if (offset > brdp->memsize) {
3615 printk(KERN_ERR "STALLION: shared memory pointer=%x out of "
3616 "range at line=%d(%d), brd=%d\n",
3617 (int) offset, line, __LINE__, brdp->brdnr);
3620 ptr = brdp->membase + (offset % ONB_ATPAGESIZE);
3625 /*****************************************************************************/
3627 static void stli_onbreset(stlibrd_t *brdp)
3631 printk(KERN_DEBUG "stli_onbreset(brdp=%x)\n", (int) brdp);
3634 outb(ONB_ATSTOP, (brdp->iobase + ONB_ATCONFR));
3636 outb(ONB_ATDISABLE, (brdp->iobase + ONB_ATCONFR));
3640 /*****************************************************************************/
3643 * The following routines act on ONboard EISA.
3646 static void stli_onbeinit(stlibrd_t *brdp)
3648 unsigned long memconf;
3651 printk(KERN_DEBUG "stli_onbeinit(brdp=%d)\n", (int) brdp);
3654 outb(0x1, (brdp->iobase + ONB_EIBRDENAB));
3655 outb(ONB_EISTOP, (brdp->iobase + ONB_EICONFR));
3657 outb(ONB_EIDISABLE, (brdp->iobase + ONB_EICONFR));
3660 memconf = (brdp->memaddr & ONB_EIADDRMASKL) >> ONB_EIADDRSHFTL;
3661 outb(memconf, (brdp->iobase + ONB_EIMEMARL));
3662 memconf = (brdp->memaddr & ONB_EIADDRMASKH) >> ONB_EIADDRSHFTH;
3663 outb(memconf, (brdp->iobase + ONB_EIMEMARH));
3664 outb(0x1, brdp->iobase);
3668 /*****************************************************************************/
3670 static void stli_onbeenable(stlibrd_t *brdp)
3673 printk(KERN_DEBUG "stli_onbeenable(brdp=%x)\n", (int) brdp);
3675 outb(ONB_EIENABLE, (brdp->iobase + ONB_EICONFR));
3678 /*****************************************************************************/
3680 static void stli_onbedisable(stlibrd_t *brdp)
3683 printk(KERN_DEBUG "stli_onbedisable(brdp=%x)\n", (int) brdp);
3685 outb(ONB_EIDISABLE, (brdp->iobase + ONB_EICONFR));
3688 /*****************************************************************************/
3690 static char *stli_onbegetmemptr(stlibrd_t *brdp, unsigned long offset, int line)
3696 printk(KERN_DEBUG "stli_onbegetmemptr(brdp=%x,offset=%x,line=%d)\n",
3697 (int) brdp, (int) offset, line);
3700 if (offset > brdp->memsize) {
3701 printk(KERN_ERR "STALLION: shared memory pointer=%x out of "
3702 "range at line=%d(%d), brd=%d\n",
3703 (int) offset, line, __LINE__, brdp->brdnr);
3707 ptr = brdp->membase + (offset % ONB_EIPAGESIZE);
3708 if (offset < ONB_EIPAGESIZE)
3711 val = ONB_EIENABLE | 0x40;
3713 outb(val, (brdp->iobase + ONB_EICONFR));
3717 /*****************************************************************************/
3719 static void stli_onbereset(stlibrd_t *brdp)
3723 printk(KERN_ERR "stli_onbereset(brdp=%x)\n", (int) brdp);
3726 outb(ONB_EISTOP, (brdp->iobase + ONB_EICONFR));
3728 outb(ONB_EIDISABLE, (brdp->iobase + ONB_EICONFR));
3732 /*****************************************************************************/
3735 * The following routines act on Brumby boards.
3738 static void stli_bbyinit(stlibrd_t *brdp)
3742 printk(KERN_ERR "stli_bbyinit(brdp=%d)\n", (int) brdp);
3745 outb(BBY_ATSTOP, (brdp->iobase + BBY_ATCONFR));
3747 outb(0, (brdp->iobase + BBY_ATCONFR));
3749 outb(0x1, brdp->iobase);
3753 /*****************************************************************************/
3755 static char *stli_bbygetmemptr(stlibrd_t *brdp, unsigned long offset, int line)
3761 printk(KERN_ERR "stli_bbygetmemptr(brdp=%x,offset=%x)\n", (int) brdp,
3765 if (offset > brdp->memsize) {
3766 printk(KERN_ERR "STALLION: shared memory pointer=%x out of "
3767 "range at line=%d(%d), brd=%d\n",
3768 (int) offset, line, __LINE__, brdp->brdnr);
3772 ptr = brdp->membase + (offset % BBY_PAGESIZE);
3773 val = (unsigned char) (offset / BBY_PAGESIZE);
3775 outb(val, (brdp->iobase + BBY_ATCONFR));
3779 /*****************************************************************************/
3781 static void stli_bbyreset(stlibrd_t *brdp)
3785 printk(KERN_DEBUG "stli_bbyreset(brdp=%x)\n", (int) brdp);
3788 outb(BBY_ATSTOP, (brdp->iobase + BBY_ATCONFR));
3790 outb(0, (brdp->iobase + BBY_ATCONFR));
3794 /*****************************************************************************/
3797 * The following routines act on original old Stallion boards.
3800 static void stli_stalinit(stlibrd_t *brdp)
3804 printk(KERN_DEBUG "stli_stalinit(brdp=%d)\n", (int) brdp);
3807 outb(0x1, brdp->iobase);
3811 /*****************************************************************************/
3813 static char *stli_stalgetmemptr(stlibrd_t *brdp, unsigned long offset, int line)
3818 printk(KERN_DEBUG "stli_stalgetmemptr(brdp=%x,offset=%x)\n", (int) brdp,
3822 if (offset > brdp->memsize) {
3823 printk(KERN_ERR "STALLION: shared memory pointer=%x out of "
3824 "range at line=%d(%d), brd=%d\n",
3825 (int) offset, line, __LINE__, brdp->brdnr);
3828 ptr = brdp->membase + (offset % STAL_PAGESIZE);
3833 /*****************************************************************************/
3835 static void stli_stalreset(stlibrd_t *brdp)
3837 volatile unsigned long *vecp;
3840 printk(KERN_DEBUG "stli_stalreset(brdp=%x)\n", (int) brdp);
3843 vecp = (volatile unsigned long *) (brdp->membase + 0x30);
3845 outb(0, brdp->iobase);
3849 /*****************************************************************************/
3852 * Try to find an ECP board and initialize it. This handles only ECP
3856 static int stli_initecp(stlibrd_t *brdp)
3860 unsigned int status, nxtid;
3862 int panelnr, nrports;
3865 printk(KERN_DEBUG "stli_initecp(brdp=%x)\n", (int) brdp);
3868 if (!request_region(brdp->iobase, brdp->iosize, "istallion"))
3871 if ((brdp->iobase == 0) || (brdp->memaddr == 0))
3873 release_region(brdp->iobase, brdp->iosize);
3877 brdp->iosize = ECP_IOSIZE;
3880 * Based on the specific board type setup the common vars to access
3881 * and enable shared memory. Set all board specific information now
3884 switch (brdp->brdtype) {
3886 brdp->membase = (void *) brdp->memaddr;
3887 brdp->memsize = ECP_MEMSIZE;
3888 brdp->pagesize = ECP_ATPAGESIZE;
3889 brdp->init = stli_ecpinit;
3890 brdp->enable = stli_ecpenable;
3891 brdp->reenable = stli_ecpenable;
3892 brdp->disable = stli_ecpdisable;
3893 brdp->getmemptr = stli_ecpgetmemptr;
3894 brdp->intr = stli_ecpintr;
3895 brdp->reset = stli_ecpreset;
3896 name = "serial(EC8/64)";
3900 brdp->membase = (void *) brdp->memaddr;
3901 brdp->memsize = ECP_MEMSIZE;
3902 brdp->pagesize = ECP_EIPAGESIZE;
3903 brdp->init = stli_ecpeiinit;
3904 brdp->enable = stli_ecpeienable;
3905 brdp->reenable = stli_ecpeienable;
3906 brdp->disable = stli_ecpeidisable;
3907 brdp->getmemptr = stli_ecpeigetmemptr;
3908 brdp->intr = stli_ecpintr;
3909 brdp->reset = stli_ecpeireset;
3910 name = "serial(EC8/64-EI)";
3914 brdp->membase = (void *) brdp->memaddr;
3915 brdp->memsize = ECP_MEMSIZE;
3916 brdp->pagesize = ECP_MCPAGESIZE;
3918 brdp->enable = stli_ecpmcenable;
3919 brdp->reenable = stli_ecpmcenable;
3920 brdp->disable = stli_ecpmcdisable;
3921 brdp->getmemptr = stli_ecpmcgetmemptr;
3922 brdp->intr = stli_ecpintr;
3923 brdp->reset = stli_ecpmcreset;
3924 name = "serial(EC8/64-MCA)";
3928 brdp->membase = (void *) brdp->memaddr;
3929 brdp->memsize = ECP_PCIMEMSIZE;
3930 brdp->pagesize = ECP_PCIPAGESIZE;
3931 brdp->init = stli_ecppciinit;
3932 brdp->enable = NULL;
3933 brdp->reenable = NULL;
3934 brdp->disable = NULL;
3935 brdp->getmemptr = stli_ecppcigetmemptr;
3936 brdp->intr = stli_ecpintr;
3937 brdp->reset = stli_ecppcireset;
3938 name = "serial(EC/RA-PCI)";
3942 release_region(brdp->iobase, brdp->iosize);
3947 * The per-board operations structure is all set up, so now let's go
3948 * and get the board operational. Firstly initialize board configuration
3949 * registers. Set the memory mapping info so we can get at the boards
3954 brdp->membase = ioremap(brdp->memaddr, brdp->memsize);
3955 if (brdp->membase == (void *) NULL)
3957 release_region(brdp->iobase, brdp->iosize);
3962 * Now that all specific code is set up, enable the shared memory and
3963 * look for the a signature area that will tell us exactly what board
3964 * this is, and what it is connected to it.
3967 sigsp = (cdkecpsig_t *) EBRDGETMEMPTR(brdp, CDK_SIGADDR);
3968 memcpy(&sig, sigsp, sizeof(cdkecpsig_t));
3972 printk("%s(%d): sig-> magic=%x rom=%x panel=%x,%x,%x,%x,%x,%x,%x,%x\n",
3973 __FILE__, __LINE__, (int) sig.magic, sig.romver, sig.panelid[0],
3974 (int) sig.panelid[1], (int) sig.panelid[2],
3975 (int) sig.panelid[3], (int) sig.panelid[4],
3976 (int) sig.panelid[5], (int) sig.panelid[6],
3977 (int) sig.panelid[7]);
3980 if (sig.magic != ECP_MAGIC)
3982 release_region(brdp->iobase, brdp->iosize);
3987 * Scan through the signature looking at the panels connected to the
3988 * board. Calculate the total number of ports as we go.
3990 for (panelnr = 0, nxtid = 0; (panelnr < STL_MAXPANELS); panelnr++) {
3991 status = sig.panelid[nxtid];
3992 if ((status & ECH_PNLIDMASK) != nxtid)
3995 brdp->panelids[panelnr] = status;
3996 nrports = (status & ECH_PNL16PORT) ? 16 : 8;
3997 if ((nrports == 16) && ((status & ECH_PNLXPID) == 0))
3999 brdp->panels[panelnr] = nrports;
4000 brdp->nrports += nrports;
4006 brdp->state |= BST_FOUND;
4010 /*****************************************************************************/
4013 * Try to find an ONboard, Brumby or Stallion board and initialize it.
4014 * This handles only these board types.
4017 static int stli_initonb(stlibrd_t *brdp)
4025 printk(KERN_DEBUG "stli_initonb(brdp=%x)\n", (int) brdp);
4029 * Do a basic sanity check on the IO and memory addresses.
4031 if ((brdp->iobase == 0) || (brdp->memaddr == 0))
4034 brdp->iosize = ONB_IOSIZE;
4036 if (!request_region(brdp->iobase, brdp->iosize, "istallion"))
4040 * Based on the specific board type setup the common vars to access
4041 * and enable shared memory. Set all board specific information now
4044 switch (brdp->brdtype) {
4048 case BRD_ONBOARD2_32:
4050 brdp->membase = (void *) brdp->memaddr;
4051 brdp->memsize = ONB_MEMSIZE;
4052 brdp->pagesize = ONB_ATPAGESIZE;
4053 brdp->init = stli_onbinit;
4054 brdp->enable = stli_onbenable;
4055 brdp->reenable = stli_onbenable;
4056 brdp->disable = stli_onbdisable;
4057 brdp->getmemptr = stli_onbgetmemptr;
4058 brdp->intr = stli_ecpintr;
4059 brdp->reset = stli_onbreset;
4060 if (brdp->memaddr > 0x100000)
4061 brdp->enabval = ONB_MEMENABHI;
4063 brdp->enabval = ONB_MEMENABLO;
4064 name = "serial(ONBoard)";
4068 brdp->membase = (void *) brdp->memaddr;
4069 brdp->memsize = ONB_EIMEMSIZE;
4070 brdp->pagesize = ONB_EIPAGESIZE;
4071 brdp->init = stli_onbeinit;
4072 brdp->enable = stli_onbeenable;
4073 brdp->reenable = stli_onbeenable;
4074 brdp->disable = stli_onbedisable;
4075 brdp->getmemptr = stli_onbegetmemptr;
4076 brdp->intr = stli_ecpintr;
4077 brdp->reset = stli_onbereset;
4078 name = "serial(ONBoard/E)";
4084 brdp->membase = (void *) brdp->memaddr;
4085 brdp->memsize = BBY_MEMSIZE;
4086 brdp->pagesize = BBY_PAGESIZE;
4087 brdp->init = stli_bbyinit;
4088 brdp->enable = NULL;
4089 brdp->reenable = NULL;
4090 brdp->disable = NULL;
4091 brdp->getmemptr = stli_bbygetmemptr;
4092 brdp->intr = stli_ecpintr;
4093 brdp->reset = stli_bbyreset;
4094 name = "serial(Brumby)";
4098 brdp->membase = (void *) brdp->memaddr;
4099 brdp->memsize = STAL_MEMSIZE;
4100 brdp->pagesize = STAL_PAGESIZE;
4101 brdp->init = stli_stalinit;
4102 brdp->enable = NULL;
4103 brdp->reenable = NULL;
4104 brdp->disable = NULL;
4105 brdp->getmemptr = stli_stalgetmemptr;
4106 brdp->intr = stli_ecpintr;
4107 brdp->reset = stli_stalreset;
4108 name = "serial(Stallion)";
4112 release_region(brdp->iobase, brdp->iosize);
4117 * The per-board operations structure is all set up, so now let's go
4118 * and get the board operational. Firstly initialize board configuration
4119 * registers. Set the memory mapping info so we can get at the boards
4124 brdp->membase = ioremap(brdp->memaddr, brdp->memsize);
4125 if (brdp->membase == (void *) NULL)
4127 release_region(brdp->iobase, brdp->iosize);
4132 * Now that all specific code is set up, enable the shared memory and
4133 * look for the a signature area that will tell us exactly what board
4134 * this is, and how many ports.
4137 sigsp = (cdkonbsig_t *) EBRDGETMEMPTR(brdp, CDK_SIGADDR);
4138 memcpy(&sig, sigsp, sizeof(cdkonbsig_t));
4142 printk("%s(%d): sig-> magic=%x:%x:%x:%x romver=%x amask=%x:%x:%x\n",
4143 __FILE__, __LINE__, sig.magic0, sig.magic1, sig.magic2,
4144 sig.magic3, sig.romver, sig.amask0, sig.amask1, sig.amask2);
4147 if ((sig.magic0 != ONB_MAGIC0) || (sig.magic1 != ONB_MAGIC1) ||
4148 (sig.magic2 != ONB_MAGIC2) || (sig.magic3 != ONB_MAGIC3))
4150 release_region(brdp->iobase, brdp->iosize);
4155 * Scan through the signature alive mask and calculate how many ports
4156 * there are on this board.
4162 for (i = 0; (i < 16); i++) {
4163 if (((sig.amask0 << i) & 0x8000) == 0)
4168 brdp->panels[0] = brdp->nrports;
4171 brdp->state |= BST_FOUND;
4175 /*****************************************************************************/
4178 * Start up a running board. This routine is only called after the
4179 * code has been down loaded to the board and is operational. It will
4180 * read in the memory map, and get the show on the road...
4183 static int stli_startbrd(stlibrd_t *brdp)
4185 volatile cdkhdr_t *hdrp;
4186 volatile cdkmem_t *memp;
4187 volatile cdkasy_t *ap;
4188 unsigned long flags;
4190 int portnr, nrdevs, i, rc;
4193 printk(KERN_DEBUG "stli_startbrd(brdp=%x)\n", (int) brdp);
4201 hdrp = (volatile cdkhdr_t *) EBRDGETMEMPTR(brdp, CDK_CDKADDR);
4202 nrdevs = hdrp->nrdevs;
4205 printk("%s(%d): CDK version %d.%d.%d --> "
4206 "nrdevs=%d memp=%x hostp=%x slavep=%x\n",
4207 __FILE__, __LINE__, hdrp->ver_release, hdrp->ver_modification,
4208 hdrp->ver_fix, nrdevs, (int) hdrp->memp, (int) hdrp->hostp,
4209 (int) hdrp->slavep);
4212 if (nrdevs < (brdp->nrports + 1)) {
4213 printk(KERN_ERR "STALLION: slave failed to allocate memory for "
4214 "all devices, devices=%d\n", nrdevs);
4215 brdp->nrports = nrdevs - 1;
4217 brdp->nrdevs = nrdevs;
4218 brdp->hostoffset = hdrp->hostp - CDK_CDKADDR;
4219 brdp->slaveoffset = hdrp->slavep - CDK_CDKADDR;
4220 brdp->bitsize = (nrdevs + 7) / 8;
4221 memp = (volatile cdkmem_t *) hdrp->memp;
4222 if (((unsigned long) memp) > brdp->memsize) {
4223 printk(KERN_ERR "STALLION: corrupted shared memory region?\n");
4225 goto stli_donestartup;
4227 memp = (volatile cdkmem_t *) EBRDGETMEMPTR(brdp, (unsigned long) memp);
4228 if (memp->dtype != TYP_ASYNCTRL) {
4229 printk(KERN_ERR "STALLION: no slave control device found\n");
4230 goto stli_donestartup;
4235 * Cycle through memory allocation of each port. We are guaranteed to
4236 * have all ports inside the first page of slave window, so no need to
4237 * change pages while reading memory map.
4239 for (i = 1, portnr = 0; (i < nrdevs); i++, portnr++, memp++) {
4240 if (memp->dtype != TYP_ASYNC)
4242 portp = brdp->ports[portnr];
4243 if (portp == (stliport_t *) NULL)
4246 portp->addr = memp->offset;
4247 portp->reqbit = (unsigned char) (0x1 << (i * 8 / nrdevs));
4248 portp->portidx = (unsigned char) (i / 8);
4249 portp->portbit = (unsigned char) (0x1 << (i % 8));
4252 hdrp->slavereq = 0xff;
4255 * For each port setup a local copy of the RX and TX buffer offsets
4256 * and sizes. We do this separate from the above, because we need to
4257 * move the shared memory page...
4259 for (i = 1, portnr = 0; (i < nrdevs); i++, portnr++) {
4260 portp = brdp->ports[portnr];
4261 if (portp == (stliport_t *) NULL)
4263 if (portp->addr == 0)
4265 ap = (volatile cdkasy_t *) EBRDGETMEMPTR(brdp, portp->addr);
4266 if (ap != (volatile cdkasy_t *) NULL) {
4267 portp->rxsize = ap->rxq.size;
4268 portp->txsize = ap->txq.size;
4269 portp->rxoffset = ap->rxq.offset;
4270 portp->txoffset = ap->txq.offset;
4276 restore_flags(flags);
4279 brdp->state |= BST_STARTED;
4281 if (! stli_timeron) {
4283 stli_timerlist.expires = STLI_TIMEOUT;
4284 add_timer(&stli_timerlist);
4290 /*****************************************************************************/
4293 * Probe and initialize the specified board.
4296 static int __init stli_brdinit(stlibrd_t *brdp)
4299 printk(KERN_DEBUG "stli_brdinit(brdp=%x)\n", (int) brdp);
4302 stli_brds[brdp->brdnr] = brdp;
4304 switch (brdp->brdtype) {
4315 case BRD_ONBOARD2_32:
4327 printk(KERN_ERR "STALLION: %s board type not supported in "
4328 "this driver\n", stli_brdnames[brdp->brdtype]);
4331 printk(KERN_ERR "STALLION: board=%d is unknown board "
4332 "type=%d\n", brdp->brdnr, brdp->brdtype);
4336 if ((brdp->state & BST_FOUND) == 0) {
4337 printk(KERN_ERR "STALLION: %s board not found, board=%d "
4339 stli_brdnames[brdp->brdtype], brdp->brdnr,
4340 brdp->iobase, (int) brdp->memaddr);
4344 stli_initports(brdp);
4345 printk(KERN_INFO "STALLION: %s found, board=%d io=%x mem=%x "
4346 "nrpanels=%d nrports=%d\n", stli_brdnames[brdp->brdtype],
4347 brdp->brdnr, brdp->iobase, (int) brdp->memaddr,
4348 brdp->nrpanels, brdp->nrports);
4352 /*****************************************************************************/
4355 * Probe around trying to find where the EISA boards shared memory
4356 * might be. This is a bit if hack, but it is the best we can do.
4359 static int stli_eisamemprobe(stlibrd_t *brdp)
4361 cdkecpsig_t ecpsig, *ecpsigp;
4362 cdkonbsig_t onbsig, *onbsigp;
4366 printk(KERN_DEBUG "stli_eisamemprobe(brdp=%x)\n", (int) brdp);
4370 * First up we reset the board, to get it into a known state. There
4371 * is only 2 board types here we need to worry about. Don;t use the
4372 * standard board init routine here, it programs up the shared
4373 * memory address, and we don't know it yet...
4375 if (brdp->brdtype == BRD_ECPE) {
4376 outb(0x1, (brdp->iobase + ECP_EIBRDENAB));
4377 outb(ECP_EISTOP, (brdp->iobase + ECP_EICONFR));
4379 outb(ECP_EIDISABLE, (brdp->iobase + ECP_EICONFR));
4381 stli_ecpeienable(brdp);
4382 } else if (brdp->brdtype == BRD_ONBOARDE) {
4383 outb(0x1, (brdp->iobase + ONB_EIBRDENAB));
4384 outb(ONB_EISTOP, (brdp->iobase + ONB_EICONFR));
4386 outb(ONB_EIDISABLE, (brdp->iobase + ONB_EICONFR));
4388 outb(0x1, brdp->iobase);
4390 stli_onbeenable(brdp);
4396 brdp->memsize = ECP_MEMSIZE;
4399 * Board shared memory is enabled, so now we have a poke around and
4400 * see if we can find it.
4402 for (i = 0; (i < stli_eisamempsize); i++) {
4403 brdp->memaddr = stli_eisamemprobeaddrs[i];
4404 brdp->membase = (void *) brdp->memaddr;
4405 brdp->membase = ioremap(brdp->memaddr, brdp->memsize);
4406 if (brdp->membase == (void *) NULL)
4409 if (brdp->brdtype == BRD_ECPE) {
4410 ecpsigp = (cdkecpsig_t *) stli_ecpeigetmemptr(brdp,
4411 CDK_SIGADDR, __LINE__);
4412 memcpy(&ecpsig, ecpsigp, sizeof(cdkecpsig_t));
4413 if (ecpsig.magic == ECP_MAGIC)
4416 onbsigp = (cdkonbsig_t *) stli_onbegetmemptr(brdp,
4417 CDK_SIGADDR, __LINE__);
4418 memcpy(&onbsig, onbsigp, sizeof(cdkonbsig_t));
4419 if ((onbsig.magic0 == ONB_MAGIC0) &&
4420 (onbsig.magic1 == ONB_MAGIC1) &&
4421 (onbsig.magic2 == ONB_MAGIC2) &&
4422 (onbsig.magic3 == ONB_MAGIC3))
4426 iounmap(brdp->membase);
4432 * Regardless of whether we found the shared memory or not we must
4433 * disable the region. After that return success or failure.
4435 if (brdp->brdtype == BRD_ECPE)
4436 stli_ecpeidisable(brdp);
4438 stli_onbedisable(brdp);
4442 brdp->membase = NULL;
4443 printk(KERN_ERR "STALLION: failed to probe shared memory "
4444 "region for %s in EISA slot=%d\n",
4445 stli_brdnames[brdp->brdtype], (brdp->iobase >> 12));
4451 static int stli_getbrdnr(void)
4455 for (i = 0; i < STL_MAXBRDS; i++) {
4456 if (!stli_brds[i]) {
4457 if (i >= stli_nrbrds)
4458 stli_nrbrds = i + 1;
4465 /*****************************************************************************/
4468 * Probe around and try to find any EISA boards in system. The biggest
4469 * problem here is finding out what memory address is associated with
4470 * an EISA board after it is found. The registers of the ECPE and
4471 * ONboardE are not readable - so we can't read them from there. We
4472 * don't have access to the EISA CMOS (or EISA BIOS) so we don't
4473 * actually have any way to find out the real value. The best we can
4474 * do is go probing around in the usual places hoping we can find it.
4477 static int stli_findeisabrds(void)
4480 unsigned int iobase, eid;
4484 printk(KERN_DEBUG "stli_findeisabrds()\n");
4488 * Firstly check if this is an EISA system. Do this by probing for
4489 * the system board EISA ID. If this is not an EISA system then
4490 * don't bother going any further!
4493 if (inb(0xc80) == 0xff)
4497 * Looks like an EISA system, so go searching for EISA boards.
4499 for (iobase = 0x1000; (iobase <= 0xc000); iobase += 0x1000) {
4500 outb(0xff, (iobase + 0xc80));
4501 eid = inb(iobase + 0xc80);
4502 eid |= inb(iobase + 0xc81) << 8;
4503 if (eid != STL_EISAID)
4507 * We have found a board. Need to check if this board was
4508 * statically configured already (just in case!).
4510 for (i = 0; (i < STL_MAXBRDS); i++) {
4511 brdp = stli_brds[i];
4512 if (brdp == (stlibrd_t *) NULL)
4514 if (brdp->iobase == iobase)
4517 if (i < STL_MAXBRDS)
4521 * We have found a Stallion board and it is not configured already.
4522 * Allocate a board structure and initialize it.
4524 if ((brdp = stli_allocbrd()) == (stlibrd_t *) NULL)
4526 if ((brdp->brdnr = stli_getbrdnr()) < 0)
4528 eid = inb(iobase + 0xc82);
4529 if (eid == ECP_EISAID)
4530 brdp->brdtype = BRD_ECPE;
4531 else if (eid == ONB_EISAID)
4532 brdp->brdtype = BRD_ONBOARDE;
4534 brdp->brdtype = BRD_UNKNOWN;
4535 brdp->iobase = iobase;
4536 outb(0x1, (iobase + 0xc84));
4537 if (stli_eisamemprobe(brdp))
4538 outb(0, (iobase + 0xc84));
4545 /*****************************************************************************/
4548 * Find the next available board number that is free.
4551 /*****************************************************************************/
4556 * We have a Stallion board. Allocate a board structure and
4557 * initialize it. Read its IO and MEMORY resources from PCI
4558 * configuration space.
4561 static int stli_initpcibrd(int brdtype, struct pci_dev *devp)
4566 printk(KERN_DEBUG "stli_initpcibrd(brdtype=%d,busnr=%x,devnr=%x)\n",
4567 brdtype, dev->bus->number, dev->devfn);
4570 if (pci_enable_device(devp))
4572 if ((brdp = stli_allocbrd()) == (stlibrd_t *) NULL)
4574 if ((brdp->brdnr = stli_getbrdnr()) < 0) {
4575 printk(KERN_INFO "STALLION: too many boards found, "
4576 "maximum supported %d\n", STL_MAXBRDS);
4579 brdp->brdtype = brdtype;
4582 printk(KERN_DEBUG "%s(%d): BAR[]=%lx,%lx,%lx,%lx\n", __FILE__, __LINE__,
4583 pci_resource_start(devp, 0),
4584 pci_resource_start(devp, 1),
4585 pci_resource_start(devp, 2),
4586 pci_resource_start(devp, 3));
4590 * We have all resources from the board, so lets setup the actual
4591 * board structure now.
4593 brdp->iobase = pci_resource_start(devp, 3);
4594 brdp->memaddr = pci_resource_start(devp, 2);
4600 /*****************************************************************************/
4603 * Find all Stallion PCI boards that might be installed. Initialize each
4604 * one as it is found.
4607 static int stli_findpcibrds(void)
4609 struct pci_dev *dev = NULL;
4613 printk("stli_findpcibrds()\n");
4616 while ((dev = pci_find_device(PCI_VENDOR_ID_STALLION,
4617 PCI_DEVICE_ID_ECRA, dev))) {
4618 if ((rc = stli_initpcibrd(BRD_ECPPCI, dev)))
4627 /*****************************************************************************/
4630 * Allocate a new board structure. Fill out the basic info in it.
4633 static stlibrd_t *stli_allocbrd(void)
4637 brdp = (stlibrd_t *) stli_memalloc(sizeof(stlibrd_t));
4638 if (brdp == (stlibrd_t *) NULL) {
4639 printk(KERN_ERR "STALLION: failed to allocate memory "
4640 "(size=%d)\n", sizeof(stlibrd_t));
4641 return((stlibrd_t *) NULL);
4644 memset(brdp, 0, sizeof(stlibrd_t));
4645 brdp->magic = STLI_BOARDMAGIC;
4649 /*****************************************************************************/
4652 * Scan through all the boards in the configuration and see what we
4656 static int stli_initbrds(void)
4658 stlibrd_t *brdp, *nxtbrdp;
4663 printk(KERN_DEBUG "stli_initbrds()\n");
4666 if (stli_nrbrds > STL_MAXBRDS) {
4667 printk(KERN_INFO "STALLION: too many boards in configuration "
4668 "table, truncating to %d\n", STL_MAXBRDS);
4669 stli_nrbrds = STL_MAXBRDS;
4673 * Firstly scan the list of static boards configured. Allocate
4674 * resources and initialize the boards as found. If this is a
4675 * module then let the module args override static configuration.
4677 for (i = 0; (i < stli_nrbrds); i++) {
4678 confp = &stli_brdconf[i];
4680 stli_parsebrd(confp, stli_brdsp[i]);
4682 if ((brdp = stli_allocbrd()) == (stlibrd_t *) NULL)
4685 brdp->brdtype = confp->brdtype;
4686 brdp->iobase = confp->ioaddr1;
4687 brdp->memaddr = confp->memaddr;
4692 * Static configuration table done, so now use dynamic methods to
4693 * see if any more boards should be configured.
4699 stli_findeisabrds();
4705 * All found boards are initialized. Now for a little optimization, if
4706 * no boards are sharing the "shared memory" regions then we can just
4707 * leave them all enabled. This is in fact the usual case.
4710 if (stli_nrbrds > 1) {
4711 for (i = 0; (i < stli_nrbrds); i++) {
4712 brdp = stli_brds[i];
4713 if (brdp == (stlibrd_t *) NULL)
4715 for (j = i + 1; (j < stli_nrbrds); j++) {
4716 nxtbrdp = stli_brds[j];
4717 if (nxtbrdp == (stlibrd_t *) NULL)
4719 if ((brdp->membase >= nxtbrdp->membase) &&
4720 (brdp->membase <= (nxtbrdp->membase +
4721 nxtbrdp->memsize - 1))) {
4729 if (stli_shared == 0) {
4730 for (i = 0; (i < stli_nrbrds); i++) {
4731 brdp = stli_brds[i];
4732 if (brdp == (stlibrd_t *) NULL)
4734 if (brdp->state & BST_FOUND) {
4736 brdp->enable = NULL;
4737 brdp->disable = NULL;
4745 /*****************************************************************************/
4748 * Code to handle an "staliomem" read operation. This device is the
4749 * contents of the board shared memory. It is used for down loading
4750 * the slave image (and debugging :-)
4753 static ssize_t stli_memread(struct file *fp, char __user *buf, size_t count, loff_t *offp)
4755 unsigned long flags;
4761 printk(KERN_DEBUG "stli_memread(fp=%x,buf=%x,count=%x,offp=%x)\n",
4762 (int) fp, (int) buf, count, (int) offp);
4765 brdnr = iminor(fp->f_dentry->d_inode);
4766 if (brdnr >= stli_nrbrds)
4768 brdp = stli_brds[brdnr];
4769 if (brdp == (stlibrd_t *) NULL)
4771 if (brdp->state == 0)
4773 if (fp->f_pos >= brdp->memsize)
4776 size = MIN(count, (brdp->memsize - fp->f_pos));
4782 memptr = (void *) EBRDGETMEMPTR(brdp, fp->f_pos);
4783 n = MIN(size, (brdp->pagesize - (((unsigned long) fp->f_pos) % brdp->pagesize)));
4784 if (copy_to_user(buf, memptr, n)) {
4794 restore_flags(flags);
4799 /*****************************************************************************/
4802 * Code to handle an "staliomem" write operation. This device is the
4803 * contents of the board shared memory. It is used for down loading
4804 * the slave image (and debugging :-)
4807 static ssize_t stli_memwrite(struct file *fp, const char __user *buf, size_t count, loff_t *offp)
4809 unsigned long flags;
4816 printk(KERN_DEBUG "stli_memwrite(fp=%x,buf=%x,count=%x,offp=%x)\n",
4817 (int) fp, (int) buf, count, (int) offp);
4820 brdnr = iminor(fp->f_dentry->d_inode);
4821 if (brdnr >= stli_nrbrds)
4823 brdp = stli_brds[brdnr];
4824 if (brdp == (stlibrd_t *) NULL)
4826 if (brdp->state == 0)
4828 if (fp->f_pos >= brdp->memsize)
4831 chbuf = (char __user *) buf;
4832 size = MIN(count, (brdp->memsize - fp->f_pos));
4838 memptr = (void *) EBRDGETMEMPTR(brdp, fp->f_pos);
4839 n = MIN(size, (brdp->pagesize - (((unsigned long) fp->f_pos) % brdp->pagesize)));
4840 if (copy_from_user(memptr, chbuf, n)) {
4850 restore_flags(flags);
4855 /*****************************************************************************/
4858 * Return the board stats structure to user app.
4861 static int stli_getbrdstats(combrd_t __user *bp)
4866 if (copy_from_user(&stli_brdstats, bp, sizeof(combrd_t)))
4868 if (stli_brdstats.brd >= STL_MAXBRDS)
4870 brdp = stli_brds[stli_brdstats.brd];
4871 if (brdp == (stlibrd_t *) NULL)
4874 memset(&stli_brdstats, 0, sizeof(combrd_t));
4875 stli_brdstats.brd = brdp->brdnr;
4876 stli_brdstats.type = brdp->brdtype;
4877 stli_brdstats.hwid = 0;
4878 stli_brdstats.state = brdp->state;
4879 stli_brdstats.ioaddr = brdp->iobase;
4880 stli_brdstats.memaddr = brdp->memaddr;
4881 stli_brdstats.nrpanels = brdp->nrpanels;
4882 stli_brdstats.nrports = brdp->nrports;
4883 for (i = 0; (i < brdp->nrpanels); i++) {
4884 stli_brdstats.panels[i].panel = i;
4885 stli_brdstats.panels[i].hwid = brdp->panelids[i];
4886 stli_brdstats.panels[i].nrports = brdp->panels[i];
4889 if (copy_to_user(bp, &stli_brdstats, sizeof(combrd_t)))
4894 /*****************************************************************************/
4897 * Resolve the referenced port number into a port struct pointer.
4900 static stliport_t *stli_getport(int brdnr, int panelnr, int portnr)
4905 if ((brdnr < 0) || (brdnr >= STL_MAXBRDS))
4906 return((stliport_t *) NULL);
4907 brdp = stli_brds[brdnr];
4908 if (brdp == (stlibrd_t *) NULL)
4909 return((stliport_t *) NULL);
4910 for (i = 0; (i < panelnr); i++)
4911 portnr += brdp->panels[i];
4912 if ((portnr < 0) || (portnr >= brdp->nrports))
4913 return((stliport_t *) NULL);
4914 return(brdp->ports[portnr]);
4917 /*****************************************************************************/
4920 * Return the port stats structure to user app. A NULL port struct
4921 * pointer passed in means that we need to find out from the app
4922 * what port to get stats for (used through board control device).
4925 static int stli_portcmdstats(stliport_t *portp)
4927 unsigned long flags;
4931 memset(&stli_comstats, 0, sizeof(comstats_t));
4933 if (portp == (stliport_t *) NULL)
4935 brdp = stli_brds[portp->brdnr];
4936 if (brdp == (stlibrd_t *) NULL)
4939 if (brdp->state & BST_STARTED) {
4940 if ((rc = stli_cmdwait(brdp, portp, A_GETSTATS,
4941 &stli_cdkstats, sizeof(asystats_t), 1)) < 0)
4944 memset(&stli_cdkstats, 0, sizeof(asystats_t));
4947 stli_comstats.brd = portp->brdnr;
4948 stli_comstats.panel = portp->panelnr;
4949 stli_comstats.port = portp->portnr;
4950 stli_comstats.state = portp->state;
4951 stli_comstats.flags = portp->flags;
4955 if (portp->tty != (struct tty_struct *) NULL) {
4956 if (portp->tty->driver_data == portp) {
4957 stli_comstats.ttystate = portp->tty->flags;
4958 stli_comstats.rxbuffered = portp->tty->flip.count;
4959 if (portp->tty->termios != (struct termios *) NULL) {
4960 stli_comstats.cflags = portp->tty->termios->c_cflag;
4961 stli_comstats.iflags = portp->tty->termios->c_iflag;
4962 stli_comstats.oflags = portp->tty->termios->c_oflag;
4963 stli_comstats.lflags = portp->tty->termios->c_lflag;
4967 restore_flags(flags);
4969 stli_comstats.txtotal = stli_cdkstats.txchars;
4970 stli_comstats.rxtotal = stli_cdkstats.rxchars + stli_cdkstats.ringover;
4971 stli_comstats.txbuffered = stli_cdkstats.txringq;
4972 stli_comstats.rxbuffered += stli_cdkstats.rxringq;
4973 stli_comstats.rxoverrun = stli_cdkstats.overruns;
4974 stli_comstats.rxparity = stli_cdkstats.parity;
4975 stli_comstats.rxframing = stli_cdkstats.framing;
4976 stli_comstats.rxlost = stli_cdkstats.ringover;
4977 stli_comstats.rxbreaks = stli_cdkstats.rxbreaks;
4978 stli_comstats.txbreaks = stli_cdkstats.txbreaks;
4979 stli_comstats.txxon = stli_cdkstats.txstart;
4980 stli_comstats.txxoff = stli_cdkstats.txstop;
4981 stli_comstats.rxxon = stli_cdkstats.rxstart;
4982 stli_comstats.rxxoff = stli_cdkstats.rxstop;
4983 stli_comstats.rxrtsoff = stli_cdkstats.rtscnt / 2;
4984 stli_comstats.rxrtson = stli_cdkstats.rtscnt - stli_comstats.rxrtsoff;
4985 stli_comstats.modem = stli_cdkstats.dcdcnt;
4986 stli_comstats.hwid = stli_cdkstats.hwid;
4987 stli_comstats.signals = stli_mktiocm(stli_cdkstats.signals);
4992 /*****************************************************************************/
4995 * Return the port stats structure to user app. A NULL port struct
4996 * pointer passed in means that we need to find out from the app
4997 * what port to get stats for (used through board control device).
5000 static int stli_getportstats(stliport_t *portp, comstats_t __user *cp)
5006 if (copy_from_user(&stli_comstats, cp, sizeof(comstats_t)))
5008 portp = stli_getport(stli_comstats.brd, stli_comstats.panel,
5009 stli_comstats.port);
5014 brdp = stli_brds[portp->brdnr];
5018 if ((rc = stli_portcmdstats(portp)) < 0)
5021 return copy_to_user(cp, &stli_comstats, sizeof(comstats_t)) ?
5025 /*****************************************************************************/
5028 * Clear the port stats structure. We also return it zeroed out...
5031 static int stli_clrportstats(stliport_t *portp, comstats_t __user *cp)
5037 if (copy_from_user(&stli_comstats, cp, sizeof(comstats_t)))
5039 portp = stli_getport(stli_comstats.brd, stli_comstats.panel,
5040 stli_comstats.port);
5045 brdp = stli_brds[portp->brdnr];
5049 if (brdp->state & BST_STARTED) {
5050 if ((rc = stli_cmdwait(brdp, portp, A_CLEARSTATS, NULL, 0, 0)) < 0)
5054 memset(&stli_comstats, 0, sizeof(comstats_t));
5055 stli_comstats.brd = portp->brdnr;
5056 stli_comstats.panel = portp->panelnr;
5057 stli_comstats.port = portp->portnr;
5059 if (copy_to_user(cp, &stli_comstats, sizeof(comstats_t)))
5064 /*****************************************************************************/
5067 * Return the entire driver ports structure to a user app.
5070 static int stli_getportstruct(stliport_t __user *arg)
5074 if (copy_from_user(&stli_dummyport, arg, sizeof(stliport_t)))
5076 portp = stli_getport(stli_dummyport.brdnr, stli_dummyport.panelnr,
5077 stli_dummyport.portnr);
5080 if (copy_to_user(arg, portp, sizeof(stliport_t)))
5085 /*****************************************************************************/
5088 * Return the entire driver board structure to a user app.
5091 static int stli_getbrdstruct(stlibrd_t __user *arg)
5095 if (copy_from_user(&stli_dummybrd, arg, sizeof(stlibrd_t)))
5097 if ((stli_dummybrd.brdnr < 0) || (stli_dummybrd.brdnr >= STL_MAXBRDS))
5099 brdp = stli_brds[stli_dummybrd.brdnr];
5102 if (copy_to_user(arg, brdp, sizeof(stlibrd_t)))
5107 /*****************************************************************************/
5110 * The "staliomem" device is also required to do some special operations on
5111 * the board. We need to be able to send an interrupt to the board,
5112 * reset it, and start/stop it.
5115 static int stli_memioctl(struct inode *ip, struct file *fp, unsigned int cmd, unsigned long arg)
5118 int brdnr, rc, done;
5119 void __user *argp = (void __user *)arg;
5122 printk(KERN_DEBUG "stli_memioctl(ip=%x,fp=%x,cmd=%x,arg=%x)\n",
5123 (int) ip, (int) fp, cmd, (int) arg);
5127 * First up handle the board independent ioctls.
5133 case COM_GETPORTSTATS:
5134 rc = stli_getportstats(NULL, argp);
5137 case COM_CLRPORTSTATS:
5138 rc = stli_clrportstats(NULL, argp);
5141 case COM_GETBRDSTATS:
5142 rc = stli_getbrdstats(argp);
5146 rc = stli_getportstruct(argp);
5150 rc = stli_getbrdstruct(argp);
5159 * Now handle the board specific ioctls. These all depend on the
5160 * minor number of the device they were called from.
5163 if (brdnr >= STL_MAXBRDS)
5165 brdp = stli_brds[brdnr];
5168 if (brdp->state == 0)
5176 rc = stli_startbrd(brdp);
5179 brdp->state &= ~BST_STARTED;
5182 brdp->state &= ~BST_STARTED;
5184 if (stli_shared == 0) {
5185 if (brdp->reenable != NULL)
5186 (* brdp->reenable)(brdp);
5197 static struct tty_operations stli_ops = {
5199 .close = stli_close,
5200 .write = stli_write,
5201 .put_char = stli_putchar,
5202 .flush_chars = stli_flushchars,
5203 .write_room = stli_writeroom,
5204 .chars_in_buffer = stli_charsinbuffer,
5205 .ioctl = stli_ioctl,
5206 .set_termios = stli_settermios,
5207 .throttle = stli_throttle,
5208 .unthrottle = stli_unthrottle,
5210 .start = stli_start,
5211 .hangup = stli_hangup,
5212 .flush_buffer = stli_flushbuffer,
5213 .break_ctl = stli_breakctl,
5214 .wait_until_sent = stli_waituntilsent,
5215 .send_xchar = stli_sendxchar,
5216 .read_proc = stli_readproc,
5217 .tiocmget = stli_tiocmget,
5218 .tiocmset = stli_tiocmset,
5221 /*****************************************************************************/
5223 int __init stli_init(void)
5226 printk(KERN_INFO "%s: version %s\n", stli_drvtitle, stli_drvversion);
5230 stli_serial = alloc_tty_driver(STL_MAXBRDS * STL_MAXPORTS);
5235 * Allocate a temporary write buffer.
5237 stli_tmpwritebuf = (char *) stli_memalloc(STLI_TXBUFSIZE);
5238 if (stli_tmpwritebuf == (char *) NULL)
5239 printk(KERN_ERR "STALLION: failed to allocate memory "
5240 "(size=%d)\n", STLI_TXBUFSIZE);
5241 stli_txcookbuf = stli_memalloc(STLI_TXBUFSIZE);
5242 if (stli_txcookbuf == (char *) NULL)
5243 printk(KERN_ERR "STALLION: failed to allocate memory "
5244 "(size=%d)\n", STLI_TXBUFSIZE);
5247 * Set up a character driver for the shared memory region. We need this
5248 * to down load the slave code image. Also it is a useful debugging tool.
5250 if (register_chrdev(STL_SIOMEMMAJOR, "staliomem", &stli_fsiomem))
5251 printk(KERN_ERR "STALLION: failed to register serial memory "
5254 devfs_mk_dir("staliomem");
5255 istallion_class = class_simple_create(THIS_MODULE, "staliomem");
5256 for (i = 0; i < 4; i++) {
5257 devfs_mk_cdev(MKDEV(STL_SIOMEMMAJOR, i),
5258 S_IFCHR | S_IRUSR | S_IWUSR,
5260 class_simple_device_add(istallion_class, MKDEV(STL_SIOMEMMAJOR, i),
5261 NULL, "staliomem%d", i);
5265 * Set up the tty driver structure and register us as a driver.
5267 stli_serial->owner = THIS_MODULE;
5268 stli_serial->driver_name = stli_drvname;
5269 stli_serial->name = stli_serialname;
5270 stli_serial->major = STL_SERIALMAJOR;
5271 stli_serial->minor_start = 0;
5272 stli_serial->type = TTY_DRIVER_TYPE_SERIAL;
5273 stli_serial->subtype = SERIAL_TYPE_NORMAL;
5274 stli_serial->init_termios = stli_deftermios;
5275 stli_serial->flags = TTY_DRIVER_REAL_RAW;
5276 tty_set_operations(stli_serial, &stli_ops);
5278 if (tty_register_driver(stli_serial)) {
5279 put_tty_driver(stli_serial);
5280 printk(KERN_ERR "STALLION: failed to register serial driver\n");
5286 /*****************************************************************************/