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1da177e4 LT |
1 | /*****************************************************************************/ |
2 | /* | |
3 | * moxa.c -- MOXA Intellio family multiport serial driver. | |
4 | * | |
5 | * Copyright (C) 1999-2000 Moxa Technologies (support@moxa.com.tw). | |
6 | * | |
7 | * This code is loosely based on the Linux serial driver, written by | |
8 | * Linus Torvalds, Theodore T'so and others. | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; either version 2 of the License, or | |
13 | * (at your option) any later version. | |
1da177e4 LT |
14 | */ |
15 | ||
16 | /* | |
17 | * MOXA Intellio Series Driver | |
18 | * for : LINUX | |
19 | * date : 1999/1/7 | |
20 | * version : 5.1 | |
21 | */ | |
22 | ||
1da177e4 LT |
23 | #include <linux/module.h> |
24 | #include <linux/types.h> | |
25 | #include <linux/mm.h> | |
26 | #include <linux/ioport.h> | |
27 | #include <linux/errno.h> | |
28 | #include <linux/signal.h> | |
29 | #include <linux/sched.h> | |
30 | #include <linux/timer.h> | |
31 | #include <linux/interrupt.h> | |
32 | #include <linux/tty.h> | |
33 | #include <linux/tty_flip.h> | |
34 | #include <linux/major.h> | |
35 | #include <linux/string.h> | |
36 | #include <linux/fcntl.h> | |
37 | #include <linux/ptrace.h> | |
38 | #include <linux/serial.h> | |
39 | #include <linux/tty_driver.h> | |
40 | #include <linux/delay.h> | |
41 | #include <linux/pci.h> | |
42 | #include <linux/init.h> | |
43 | #include <linux/bitops.h> | |
44 | ||
45 | #include <asm/system.h> | |
46 | #include <asm/io.h> | |
47 | #include <asm/uaccess.h> | |
48 | ||
11324edd | 49 | #define MOXA_VERSION "5.1k" |
1da177e4 | 50 | |
11324edd JS |
51 | #define MOXAMAJOR 172 |
52 | #define MOXACUMAJOR 173 | |
1da177e4 | 53 | |
11324edd | 54 | #define MAX_BOARDS 4 /* Don't change this value */ |
1da177e4 | 55 | #define MAX_PORTS_PER_BOARD 32 /* Don't change this value */ |
11324edd | 56 | #define MAX_PORTS (MAX_BOARDS * MAX_PORTS_PER_BOARD) |
1da177e4 LT |
57 | |
58 | /* | |
59 | * Define the Moxa PCI vendor and device IDs. | |
60 | */ | |
11324edd JS |
61 | #define MOXA_BUS_TYPE_ISA 0 |
62 | #define MOXA_BUS_TYPE_PCI 1 | |
1da177e4 | 63 | |
1da177e4 LT |
64 | enum { |
65 | MOXA_BOARD_C218_PCI = 1, | |
66 | MOXA_BOARD_C218_ISA, | |
67 | MOXA_BOARD_C320_PCI, | |
68 | MOXA_BOARD_C320_ISA, | |
69 | MOXA_BOARD_CP204J, | |
70 | }; | |
71 | ||
72 | static char *moxa_brdname[] = | |
73 | { | |
74 | "C218 Turbo PCI series", | |
75 | "C218 Turbo ISA series", | |
76 | "C320 Turbo PCI series", | |
77 | "C320 Turbo ISA series", | |
78 | "CP-204J series", | |
79 | }; | |
80 | ||
81 | #ifdef CONFIG_PCI | |
82 | static struct pci_device_id moxa_pcibrds[] = { | |
5ebb4078 JS |
83 | { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_C218), |
84 | .driver_data = MOXA_BOARD_C218_PCI }, | |
85 | { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_C320), | |
86 | .driver_data = MOXA_BOARD_C320_PCI }, | |
87 | { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP204J), | |
88 | .driver_data = MOXA_BOARD_CP204J }, | |
1da177e4 LT |
89 | { 0 } |
90 | }; | |
91 | MODULE_DEVICE_TABLE(pci, moxa_pcibrds); | |
92 | #endif /* CONFIG_PCI */ | |
93 | ||
9dff89cd | 94 | struct moxa_isa_board_conf { |
1da177e4 LT |
95 | int boardType; |
96 | int numPorts; | |
97 | unsigned long baseAddr; | |
9dff89cd | 98 | }; |
1da177e4 | 99 | |
9dff89cd | 100 | static struct moxa_isa_board_conf moxa_isa_boards[] = |
1da177e4 LT |
101 | { |
102 | /* {MOXA_BOARD_C218_ISA,8,0xDC000}, */ | |
103 | }; | |
104 | ||
9dff89cd | 105 | struct moxa_board_conf { |
1da177e4 LT |
106 | int boardType; |
107 | int numPorts; | |
108 | unsigned long baseAddr; | |
109 | int busType; | |
889074ee | 110 | struct pci_dev *pdev; |
9dff89cd | 111 | }; |
1da177e4 | 112 | |
9dff89cd | 113 | static struct moxa_board_conf moxa_boards[MAX_BOARDS]; |
1da177e4 | 114 | static void __iomem *moxaBaseAddr[MAX_BOARDS]; |
01cfaf0d | 115 | static int loadstat[MAX_BOARDS]; |
1da177e4 LT |
116 | |
117 | struct moxa_str { | |
118 | int type; | |
119 | int port; | |
120 | int close_delay; | |
121 | unsigned short closing_wait; | |
122 | int count; | |
123 | int blocked_open; | |
124 | long event; /* long req'd for set_bit --RR */ | |
125 | int asyncflags; | |
126 | unsigned long statusflags; | |
127 | struct tty_struct *tty; | |
128 | int cflag; | |
129 | wait_queue_head_t open_wait; | |
130 | wait_queue_head_t close_wait; | |
1da177e4 LT |
131 | }; |
132 | ||
133 | struct mxser_mstatus { | |
134 | tcflag_t cflag; | |
135 | int cts; | |
136 | int dsr; | |
137 | int ri; | |
138 | int dcd; | |
139 | }; | |
140 | ||
141 | static struct mxser_mstatus GMStatus[MAX_PORTS]; | |
142 | ||
143 | /* statusflags */ | |
144 | #define TXSTOPPED 0x1 | |
145 | #define LOWWAIT 0x2 | |
146 | #define EMPTYWAIT 0x4 | |
147 | #define THROTTLE 0x8 | |
148 | ||
1da177e4 LT |
149 | #define SERIAL_DO_RESTART |
150 | ||
1da177e4 LT |
151 | #define WAKEUP_CHARS 256 |
152 | ||
1da177e4 LT |
153 | static int verbose = 0; |
154 | static int ttymajor = MOXAMAJOR; | |
155 | /* Variables for insmod */ | |
156 | #ifdef MODULE | |
9fa372a8 JS |
157 | static int baseaddr[4]; |
158 | static int type[4]; | |
159 | static int numports[4]; | |
1da177e4 LT |
160 | #endif |
161 | ||
162 | MODULE_AUTHOR("William Chen"); | |
163 | MODULE_DESCRIPTION("MOXA Intellio Family Multiport Board Device Driver"); | |
164 | MODULE_LICENSE("GPL"); | |
165 | #ifdef MODULE | |
166 | module_param_array(type, int, NULL, 0); | |
167 | module_param_array(baseaddr, int, NULL, 0); | |
168 | module_param_array(numports, int, NULL, 0); | |
169 | #endif | |
170 | module_param(ttymajor, int, 0); | |
171 | module_param(verbose, bool, 0644); | |
172 | ||
1da177e4 LT |
173 | /* |
174 | * static functions: | |
175 | */ | |
1da177e4 LT |
176 | static int moxa_open(struct tty_struct *, struct file *); |
177 | static void moxa_close(struct tty_struct *, struct file *); | |
178 | static int moxa_write(struct tty_struct *, const unsigned char *, int); | |
179 | static int moxa_write_room(struct tty_struct *); | |
180 | static void moxa_flush_buffer(struct tty_struct *); | |
181 | static int moxa_chars_in_buffer(struct tty_struct *); | |
182 | static void moxa_flush_chars(struct tty_struct *); | |
183 | static void moxa_put_char(struct tty_struct *, unsigned char); | |
184 | static int moxa_ioctl(struct tty_struct *, struct file *, unsigned int, unsigned long); | |
185 | static void moxa_throttle(struct tty_struct *); | |
186 | static void moxa_unthrottle(struct tty_struct *); | |
606d099c | 187 | static void moxa_set_termios(struct tty_struct *, struct ktermios *); |
1da177e4 LT |
188 | static void moxa_stop(struct tty_struct *); |
189 | static void moxa_start(struct tty_struct *); | |
190 | static void moxa_hangup(struct tty_struct *); | |
191 | static int moxa_tiocmget(struct tty_struct *tty, struct file *file); | |
192 | static int moxa_tiocmset(struct tty_struct *tty, struct file *file, | |
193 | unsigned int set, unsigned int clear); | |
194 | static void moxa_poll(unsigned long); | |
195 | static void set_tty_param(struct tty_struct *); | |
196 | static int block_till_ready(struct tty_struct *, struct file *, | |
197 | struct moxa_str *); | |
198 | static void setup_empty_event(struct tty_struct *); | |
199 | static void check_xmit_empty(unsigned long); | |
200 | static void shut_down(struct moxa_str *); | |
201 | static void receive_data(struct moxa_str *); | |
202 | /* | |
203 | * moxa board interface functions: | |
204 | */ | |
205 | static void MoxaDriverInit(void); | |
206 | static int MoxaDriverIoctl(unsigned int, unsigned long, int); | |
207 | static int MoxaDriverPoll(void); | |
208 | static int MoxaPortsOfCard(int); | |
209 | static int MoxaPortIsValid(int); | |
210 | static void MoxaPortEnable(int); | |
211 | static void MoxaPortDisable(int); | |
212 | static long MoxaPortGetMaxBaud(int); | |
213 | static long MoxaPortSetBaud(int, long); | |
606d099c | 214 | static int MoxaPortSetTermio(int, struct ktermios *, speed_t); |
1da177e4 LT |
215 | static int MoxaPortGetLineOut(int, int *, int *); |
216 | static void MoxaPortLineCtrl(int, int, int); | |
217 | static void MoxaPortFlowCtrl(int, int, int, int, int, int); | |
218 | static int MoxaPortLineStatus(int); | |
219 | static int MoxaPortDCDChange(int); | |
220 | static int MoxaPortDCDON(int); | |
221 | static void MoxaPortFlushData(int, int); | |
222 | static int MoxaPortWriteData(int, unsigned char *, int); | |
33f0f88f | 223 | static int MoxaPortReadData(int, struct tty_struct *tty); |
1da177e4 LT |
224 | static int MoxaPortTxQueue(int); |
225 | static int MoxaPortRxQueue(int); | |
226 | static int MoxaPortTxFree(int); | |
227 | static void MoxaPortTxDisable(int); | |
228 | static void MoxaPortTxEnable(int); | |
229 | static int MoxaPortResetBrkCnt(int); | |
230 | static void MoxaPortSendBreak(int, int); | |
231 | static int moxa_get_serial_info(struct moxa_str *, struct serial_struct __user *); | |
232 | static int moxa_set_serial_info(struct moxa_str *, struct serial_struct __user *); | |
233 | static void MoxaSetFifo(int port, int enable); | |
234 | ||
b68e31d0 | 235 | static const struct tty_operations moxa_ops = { |
1da177e4 LT |
236 | .open = moxa_open, |
237 | .close = moxa_close, | |
238 | .write = moxa_write, | |
239 | .write_room = moxa_write_room, | |
240 | .flush_buffer = moxa_flush_buffer, | |
241 | .chars_in_buffer = moxa_chars_in_buffer, | |
242 | .flush_chars = moxa_flush_chars, | |
243 | .put_char = moxa_put_char, | |
244 | .ioctl = moxa_ioctl, | |
245 | .throttle = moxa_throttle, | |
246 | .unthrottle = moxa_unthrottle, | |
247 | .set_termios = moxa_set_termios, | |
248 | .stop = moxa_stop, | |
249 | .start = moxa_start, | |
250 | .hangup = moxa_hangup, | |
251 | .tiocmget = moxa_tiocmget, | |
252 | .tiocmset = moxa_tiocmset, | |
253 | }; | |
254 | ||
aa7e5221 JS |
255 | static struct tty_driver *moxaDriver; |
256 | static struct moxa_str moxaChannels[MAX_PORTS]; | |
257 | static DEFINE_TIMER(moxaTimer, moxa_poll, 0, 0); | |
258 | static struct timer_list moxaEmptyTimer[MAX_PORTS]; | |
34af946a | 259 | static DEFINE_SPINLOCK(moxa_lock); |
33f0f88f | 260 | |
1da177e4 | 261 | #ifdef CONFIG_PCI |
9dff89cd JS |
262 | static int moxa_get_PCI_conf(struct pci_dev *p, int board_type, |
263 | struct moxa_board_conf *board) | |
1da177e4 LT |
264 | { |
265 | board->baseAddr = pci_resource_start (p, 2); | |
266 | board->boardType = board_type; | |
267 | switch (board_type) { | |
268 | case MOXA_BOARD_C218_ISA: | |
269 | case MOXA_BOARD_C218_PCI: | |
270 | board->numPorts = 8; | |
271 | break; | |
272 | ||
273 | case MOXA_BOARD_CP204J: | |
274 | board->numPorts = 4; | |
275 | break; | |
276 | default: | |
277 | board->numPorts = 0; | |
278 | break; | |
279 | } | |
280 | board->busType = MOXA_BUS_TYPE_PCI; | |
86fbf148 | 281 | /* don't lose the reference in the next pci_get_device iteration */ |
889074ee | 282 | board->pdev = pci_dev_get(p); |
1da177e4 LT |
283 | |
284 | return (0); | |
285 | } | |
286 | #endif /* CONFIG_PCI */ | |
287 | ||
288 | static int __init moxa_init(void) | |
289 | { | |
290 | int i, numBoards; | |
291 | struct moxa_str *ch; | |
292 | ||
293 | printk(KERN_INFO "MOXA Intellio family driver version %s\n", MOXA_VERSION); | |
294 | moxaDriver = alloc_tty_driver(MAX_PORTS + 1); | |
295 | if (!moxaDriver) | |
296 | return -ENOMEM; | |
297 | ||
1da177e4 | 298 | moxaDriver->owner = THIS_MODULE; |
9b4e3b13 | 299 | moxaDriver->name = "ttyMX"; |
1da177e4 LT |
300 | moxaDriver->major = ttymajor; |
301 | moxaDriver->minor_start = 0; | |
302 | moxaDriver->type = TTY_DRIVER_TYPE_SERIAL; | |
303 | moxaDriver->subtype = SERIAL_TYPE_NORMAL; | |
304 | moxaDriver->init_termios = tty_std_termios; | |
1da177e4 | 305 | moxaDriver->init_termios.c_cflag = B9600 | CS8 | CREAD | CLOCAL | HUPCL; |
606d099c AC |
306 | moxaDriver->init_termios.c_ispeed = 9600; |
307 | moxaDriver->init_termios.c_ospeed = 9600; | |
1da177e4 LT |
308 | moxaDriver->flags = TTY_DRIVER_REAL_RAW; |
309 | tty_set_operations(moxaDriver, &moxa_ops); | |
310 | ||
1da177e4 LT |
311 | for (i = 0, ch = moxaChannels; i < MAX_PORTS; i++, ch++) { |
312 | ch->type = PORT_16550A; | |
313 | ch->port = i; | |
1da177e4 LT |
314 | ch->close_delay = 5 * HZ / 10; |
315 | ch->closing_wait = 30 * HZ; | |
1da177e4 LT |
316 | ch->cflag = B9600 | CS8 | CREAD | CLOCAL | HUPCL; |
317 | init_waitqueue_head(&ch->open_wait); | |
318 | init_waitqueue_head(&ch->close_wait); | |
319 | } | |
320 | ||
1da177e4 LT |
321 | printk("Tty devices major number = %d\n", ttymajor); |
322 | ||
323 | if (tty_register_driver(moxaDriver)) { | |
324 | printk(KERN_ERR "Couldn't install MOXA Smartio family driver !\n"); | |
325 | put_tty_driver(moxaDriver); | |
326 | return -1; | |
327 | } | |
aa7e5221 JS |
328 | for (i = 0; i < MAX_PORTS; i++) |
329 | setup_timer(&moxaEmptyTimer[i], check_xmit_empty, | |
330 | (unsigned long)&moxaChannels[i]); | |
1da177e4 | 331 | |
aa7e5221 | 332 | mod_timer(&moxaTimer, jiffies + HZ / 50); |
1da177e4 LT |
333 | |
334 | /* Find the boards defined in source code */ | |
335 | numBoards = 0; | |
336 | for (i = 0; i < MAX_BOARDS; i++) { | |
337 | if ((moxa_isa_boards[i].boardType == MOXA_BOARD_C218_ISA) || | |
338 | (moxa_isa_boards[i].boardType == MOXA_BOARD_C320_ISA)) { | |
339 | moxa_boards[numBoards].boardType = moxa_isa_boards[i].boardType; | |
340 | if (moxa_isa_boards[i].boardType == MOXA_BOARD_C218_ISA) | |
341 | moxa_boards[numBoards].numPorts = 8; | |
342 | else | |
343 | moxa_boards[numBoards].numPorts = moxa_isa_boards[i].numPorts; | |
344 | moxa_boards[numBoards].busType = MOXA_BUS_TYPE_ISA; | |
345 | moxa_boards[numBoards].baseAddr = moxa_isa_boards[i].baseAddr; | |
346 | if (verbose) | |
347 | printk("Board %2d: %s board(baseAddr=%lx)\n", | |
348 | numBoards + 1, | |
349 | moxa_brdname[moxa_boards[numBoards].boardType - 1], | |
350 | moxa_boards[numBoards].baseAddr); | |
351 | numBoards++; | |
352 | } | |
353 | } | |
354 | /* Find the boards defined form module args. */ | |
355 | #ifdef MODULE | |
356 | for (i = 0; i < MAX_BOARDS; i++) { | |
357 | if ((type[i] == MOXA_BOARD_C218_ISA) || | |
358 | (type[i] == MOXA_BOARD_C320_ISA)) { | |
359 | if (verbose) | |
360 | printk("Board %2d: %s board(baseAddr=%lx)\n", | |
361 | numBoards + 1, | |
362 | moxa_brdname[type[i] - 1], | |
363 | (unsigned long) baseaddr[i]); | |
364 | if (numBoards >= MAX_BOARDS) { | |
365 | if (verbose) | |
366 | printk("More than %d MOXA Intellio family boards found. Board is ignored.", MAX_BOARDS); | |
367 | continue; | |
368 | } | |
369 | moxa_boards[numBoards].boardType = type[i]; | |
370 | if (moxa_isa_boards[i].boardType == MOXA_BOARD_C218_ISA) | |
371 | moxa_boards[numBoards].numPorts = 8; | |
372 | else | |
373 | moxa_boards[numBoards].numPorts = numports[i]; | |
374 | moxa_boards[numBoards].busType = MOXA_BUS_TYPE_ISA; | |
375 | moxa_boards[numBoards].baseAddr = baseaddr[i]; | |
376 | numBoards++; | |
377 | } | |
378 | } | |
379 | #endif | |
380 | /* Find PCI boards here */ | |
381 | #ifdef CONFIG_PCI | |
382 | { | |
383 | struct pci_dev *p = NULL; | |
fe971071 | 384 | int n = ARRAY_SIZE(moxa_pcibrds) - 1; |
1da177e4 LT |
385 | i = 0; |
386 | while (i < n) { | |
881a8c12 | 387 | while ((p = pci_get_device(moxa_pcibrds[i].vendor, moxa_pcibrds[i].device, p))!=NULL) |
1da177e4 LT |
388 | { |
389 | if (pci_enable_device(p)) | |
390 | continue; | |
391 | if (numBoards >= MAX_BOARDS) { | |
392 | if (verbose) | |
393 | printk("More than %d MOXA Intellio family boards found. Board is ignored.", MAX_BOARDS); | |
394 | } else { | |
395 | moxa_get_PCI_conf(p, moxa_pcibrds[i].driver_data, | |
396 | &moxa_boards[numBoards]); | |
397 | numBoards++; | |
398 | } | |
399 | } | |
400 | i++; | |
401 | } | |
402 | } | |
403 | #endif | |
404 | for (i = 0; i < numBoards; i++) { | |
405 | moxaBaseAddr[i] = ioremap((unsigned long) moxa_boards[i].baseAddr, 0x4000); | |
406 | } | |
407 | ||
408 | return (0); | |
409 | } | |
410 | ||
411 | static void __exit moxa_exit(void) | |
412 | { | |
413 | int i; | |
414 | ||
415 | if (verbose) | |
416 | printk("Unloading module moxa ...\n"); | |
417 | ||
c251ae0d | 418 | del_timer_sync(&moxaTimer); |
1da177e4 LT |
419 | |
420 | for (i = 0; i < MAX_PORTS; i++) | |
c251ae0d | 421 | del_timer_sync(&moxaEmptyTimer[i]); |
1da177e4 LT |
422 | |
423 | if (tty_unregister_driver(moxaDriver)) | |
424 | printk("Couldn't unregister MOXA Intellio family serial driver\n"); | |
425 | put_tty_driver(moxaDriver); | |
86fbf148 | 426 | |
41bdabbb AL |
427 | for (i = 0; i < MAX_BOARDS; i++) { |
428 | if (moxaBaseAddr[i]) | |
429 | iounmap(moxaBaseAddr[i]); | |
86fbf148 | 430 | if (moxa_boards[i].busType == MOXA_BUS_TYPE_PCI) |
889074ee | 431 | pci_dev_put(moxa_boards[i].pdev); |
41bdabbb | 432 | } |
86fbf148 | 433 | |
1da177e4 LT |
434 | if (verbose) |
435 | printk("Done\n"); | |
436 | } | |
437 | ||
438 | module_init(moxa_init); | |
439 | module_exit(moxa_exit); | |
440 | ||
1da177e4 LT |
441 | static int moxa_open(struct tty_struct *tty, struct file *filp) |
442 | { | |
443 | struct moxa_str *ch; | |
444 | int port; | |
445 | int retval; | |
1da177e4 | 446 | |
11324edd | 447 | port = tty->index; |
1da177e4 LT |
448 | if (port == MAX_PORTS) { |
449 | return (0); | |
450 | } | |
451 | if (!MoxaPortIsValid(port)) { | |
452 | tty->driver_data = NULL; | |
453 | return (-ENODEV); | |
454 | } | |
1da177e4 LT |
455 | |
456 | ch = &moxaChannels[port]; | |
457 | ch->count++; | |
458 | tty->driver_data = ch; | |
459 | ch->tty = tty; | |
460 | if (!(ch->asyncflags & ASYNC_INITIALIZED)) { | |
461 | ch->statusflags = 0; | |
462 | set_tty_param(tty); | |
463 | MoxaPortLineCtrl(ch->port, 1, 1); | |
464 | MoxaPortEnable(ch->port); | |
465 | ch->asyncflags |= ASYNC_INITIALIZED; | |
466 | } | |
467 | retval = block_till_ready(tty, filp, ch); | |
468 | ||
469 | moxa_unthrottle(tty); | |
470 | ||
471 | if (ch->type == PORT_16550A) { | |
472 | MoxaSetFifo(ch->port, 1); | |
473 | } else { | |
474 | MoxaSetFifo(ch->port, 0); | |
475 | } | |
476 | ||
477 | return (retval); | |
478 | } | |
479 | ||
480 | static void moxa_close(struct tty_struct *tty, struct file *filp) | |
481 | { | |
482 | struct moxa_str *ch; | |
483 | int port; | |
484 | ||
11324edd | 485 | port = tty->index; |
1da177e4 LT |
486 | if (port == MAX_PORTS) { |
487 | return; | |
488 | } | |
489 | if (!MoxaPortIsValid(port)) { | |
490 | #ifdef SERIAL_DEBUG_CLOSE | |
491 | printk("Invalid portno in moxa_close\n"); | |
492 | #endif | |
493 | tty->driver_data = NULL; | |
494 | return; | |
495 | } | |
496 | if (tty->driver_data == NULL) { | |
497 | return; | |
498 | } | |
499 | if (tty_hung_up_p(filp)) { | |
500 | return; | |
501 | } | |
502 | ch = (struct moxa_str *) tty->driver_data; | |
503 | ||
504 | if ((tty->count == 1) && (ch->count != 1)) { | |
505 | printk("moxa_close: bad serial port count; tty->count is 1, " | |
506 | "ch->count is %d\n", ch->count); | |
507 | ch->count = 1; | |
508 | } | |
509 | if (--ch->count < 0) { | |
510 | printk("moxa_close: bad serial port count, device=%s\n", | |
511 | tty->name); | |
512 | ch->count = 0; | |
513 | } | |
514 | if (ch->count) { | |
515 | return; | |
516 | } | |
517 | ch->asyncflags |= ASYNC_CLOSING; | |
518 | ||
519 | ch->cflag = tty->termios->c_cflag; | |
520 | if (ch->asyncflags & ASYNC_INITIALIZED) { | |
521 | setup_empty_event(tty); | |
522 | tty_wait_until_sent(tty, 30 * HZ); /* 30 seconds timeout */ | |
c251ae0d | 523 | del_timer_sync(&moxaEmptyTimer[ch->port]); |
1da177e4 LT |
524 | } |
525 | shut_down(ch); | |
526 | MoxaPortFlushData(port, 2); | |
527 | ||
528 | if (tty->driver->flush_buffer) | |
529 | tty->driver->flush_buffer(tty); | |
530 | tty_ldisc_flush(tty); | |
531 | ||
532 | tty->closing = 0; | |
533 | ch->event = 0; | |
534 | ch->tty = NULL; | |
535 | if (ch->blocked_open) { | |
536 | if (ch->close_delay) { | |
537 | msleep_interruptible(jiffies_to_msecs(ch->close_delay)); | |
538 | } | |
539 | wake_up_interruptible(&ch->open_wait); | |
540 | } | |
541 | ch->asyncflags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_CLOSING); | |
542 | wake_up_interruptible(&ch->close_wait); | |
543 | } | |
544 | ||
545 | static int moxa_write(struct tty_struct *tty, | |
546 | const unsigned char *buf, int count) | |
547 | { | |
548 | struct moxa_str *ch; | |
549 | int len, port; | |
550 | unsigned long flags; | |
551 | ||
552 | ch = (struct moxa_str *) tty->driver_data; | |
553 | if (ch == NULL) | |
554 | return (0); | |
555 | port = ch->port; | |
33f0f88f AC |
556 | |
557 | spin_lock_irqsave(&moxa_lock, flags); | |
1da177e4 | 558 | len = MoxaPortWriteData(port, (unsigned char *) buf, count); |
33f0f88f | 559 | spin_unlock_irqrestore(&moxa_lock, flags); |
1da177e4 LT |
560 | |
561 | /********************************************* | |
562 | if ( !(ch->statusflags & LOWWAIT) && | |
563 | ((len != count) || (MoxaPortTxFree(port) <= 100)) ) | |
564 | ************************************************/ | |
565 | ch->statusflags |= LOWWAIT; | |
566 | return (len); | |
567 | } | |
568 | ||
569 | static int moxa_write_room(struct tty_struct *tty) | |
570 | { | |
571 | struct moxa_str *ch; | |
572 | ||
573 | if (tty->stopped) | |
574 | return (0); | |
575 | ch = (struct moxa_str *) tty->driver_data; | |
576 | if (ch == NULL) | |
577 | return (0); | |
578 | return (MoxaPortTxFree(ch->port)); | |
579 | } | |
580 | ||
581 | static void moxa_flush_buffer(struct tty_struct *tty) | |
582 | { | |
583 | struct moxa_str *ch = (struct moxa_str *) tty->driver_data; | |
584 | ||
585 | if (ch == NULL) | |
586 | return; | |
587 | MoxaPortFlushData(ch->port, 1); | |
588 | tty_wakeup(tty); | |
589 | } | |
590 | ||
591 | static int moxa_chars_in_buffer(struct tty_struct *tty) | |
592 | { | |
593 | int chars; | |
594 | struct moxa_str *ch = (struct moxa_str *) tty->driver_data; | |
595 | ||
596 | /* | |
597 | * Sigh...I have to check if driver_data is NULL here, because | |
598 | * if an open() fails, the TTY subsystem eventually calls | |
599 | * tty_wait_until_sent(), which calls the driver's chars_in_buffer() | |
600 | * routine. And since the open() failed, we return 0 here. TDJ | |
601 | */ | |
602 | if (ch == NULL) | |
603 | return (0); | |
604 | chars = MoxaPortTxQueue(ch->port); | |
605 | if (chars) { | |
606 | /* | |
607 | * Make it possible to wakeup anything waiting for output | |
608 | * in tty_ioctl.c, etc. | |
609 | */ | |
610 | if (!(ch->statusflags & EMPTYWAIT)) | |
611 | setup_empty_event(tty); | |
612 | } | |
613 | return (chars); | |
614 | } | |
615 | ||
616 | static void moxa_flush_chars(struct tty_struct *tty) | |
617 | { | |
618 | /* | |
619 | * Don't think I need this, because this is called to empty the TX | |
620 | * buffer for the 16450, 16550, etc. | |
621 | */ | |
622 | } | |
623 | ||
624 | static void moxa_put_char(struct tty_struct *tty, unsigned char c) | |
625 | { | |
626 | struct moxa_str *ch; | |
627 | int port; | |
628 | unsigned long flags; | |
629 | ||
630 | ch = (struct moxa_str *) tty->driver_data; | |
631 | if (ch == NULL) | |
632 | return; | |
633 | port = ch->port; | |
33f0f88f | 634 | spin_lock_irqsave(&moxa_lock, flags); |
f204d267 | 635 | MoxaPortWriteData(port, &c, 1); |
33f0f88f | 636 | spin_unlock_irqrestore(&moxa_lock, flags); |
1da177e4 LT |
637 | /************************************************ |
638 | if ( !(ch->statusflags & LOWWAIT) && (MoxaPortTxFree(port) <= 100) ) | |
639 | *************************************************/ | |
640 | ch->statusflags |= LOWWAIT; | |
641 | } | |
642 | ||
643 | static int moxa_tiocmget(struct tty_struct *tty, struct file *file) | |
644 | { | |
645 | struct moxa_str *ch = (struct moxa_str *) tty->driver_data; | |
646 | int port; | |
647 | int flag = 0, dtr, rts; | |
648 | ||
11324edd | 649 | port = tty->index; |
1da177e4 LT |
650 | if ((port != MAX_PORTS) && (!ch)) |
651 | return (-EINVAL); | |
652 | ||
653 | MoxaPortGetLineOut(ch->port, &dtr, &rts); | |
654 | if (dtr) | |
655 | flag |= TIOCM_DTR; | |
656 | if (rts) | |
657 | flag |= TIOCM_RTS; | |
658 | dtr = MoxaPortLineStatus(ch->port); | |
659 | if (dtr & 1) | |
660 | flag |= TIOCM_CTS; | |
661 | if (dtr & 2) | |
662 | flag |= TIOCM_DSR; | |
663 | if (dtr & 4) | |
664 | flag |= TIOCM_CD; | |
665 | return flag; | |
666 | } | |
667 | ||
668 | static int moxa_tiocmset(struct tty_struct *tty, struct file *file, | |
669 | unsigned int set, unsigned int clear) | |
670 | { | |
671 | struct moxa_str *ch = (struct moxa_str *) tty->driver_data; | |
672 | int port; | |
673 | int dtr, rts; | |
674 | ||
11324edd | 675 | port = tty->index; |
1da177e4 LT |
676 | if ((port != MAX_PORTS) && (!ch)) |
677 | return (-EINVAL); | |
678 | ||
679 | MoxaPortGetLineOut(ch->port, &dtr, &rts); | |
680 | if (set & TIOCM_RTS) | |
681 | rts = 1; | |
682 | if (set & TIOCM_DTR) | |
683 | dtr = 1; | |
684 | if (clear & TIOCM_RTS) | |
685 | rts = 0; | |
686 | if (clear & TIOCM_DTR) | |
687 | dtr = 0; | |
688 | MoxaPortLineCtrl(ch->port, dtr, rts); | |
689 | return 0; | |
690 | } | |
691 | ||
692 | static int moxa_ioctl(struct tty_struct *tty, struct file *file, | |
693 | unsigned int cmd, unsigned long arg) | |
694 | { | |
695 | struct moxa_str *ch = (struct moxa_str *) tty->driver_data; | |
696 | register int port; | |
697 | void __user *argp = (void __user *)arg; | |
698 | int retval; | |
699 | ||
11324edd | 700 | port = tty->index; |
1da177e4 LT |
701 | if ((port != MAX_PORTS) && (!ch)) |
702 | return (-EINVAL); | |
703 | ||
704 | switch (cmd) { | |
705 | case TCSBRK: /* SVID version: non-zero arg --> no break */ | |
706 | retval = tty_check_change(tty); | |
707 | if (retval) | |
708 | return (retval); | |
709 | setup_empty_event(tty); | |
710 | tty_wait_until_sent(tty, 0); | |
711 | if (!arg) | |
712 | MoxaPortSendBreak(ch->port, 0); | |
713 | return (0); | |
714 | case TCSBRKP: /* support for POSIX tcsendbreak() */ | |
715 | retval = tty_check_change(tty); | |
716 | if (retval) | |
717 | return (retval); | |
718 | setup_empty_event(tty); | |
719 | tty_wait_until_sent(tty, 0); | |
720 | MoxaPortSendBreak(ch->port, arg); | |
721 | return (0); | |
722 | case TIOCGSOFTCAR: | |
723 | return put_user(C_CLOCAL(tty) ? 1 : 0, (unsigned long __user *) argp); | |
724 | case TIOCSSOFTCAR: | |
725 | if(get_user(retval, (unsigned long __user *) argp)) | |
726 | return -EFAULT; | |
727 | arg = retval; | |
728 | tty->termios->c_cflag = ((tty->termios->c_cflag & ~CLOCAL) | | |
729 | (arg ? CLOCAL : 0)); | |
730 | if (C_CLOCAL(tty)) | |
731 | ch->asyncflags &= ~ASYNC_CHECK_CD; | |
732 | else | |
733 | ch->asyncflags |= ASYNC_CHECK_CD; | |
734 | return (0); | |
735 | case TIOCGSERIAL: | |
736 | return moxa_get_serial_info(ch, argp); | |
737 | ||
738 | case TIOCSSERIAL: | |
739 | return moxa_set_serial_info(ch, argp); | |
740 | default: | |
741 | retval = MoxaDriverIoctl(cmd, arg, port); | |
742 | } | |
743 | return (retval); | |
744 | } | |
745 | ||
746 | static void moxa_throttle(struct tty_struct *tty) | |
747 | { | |
748 | struct moxa_str *ch = (struct moxa_str *) tty->driver_data; | |
749 | ||
750 | ch->statusflags |= THROTTLE; | |
751 | } | |
752 | ||
753 | static void moxa_unthrottle(struct tty_struct *tty) | |
754 | { | |
755 | struct moxa_str *ch = (struct moxa_str *) tty->driver_data; | |
756 | ||
757 | ch->statusflags &= ~THROTTLE; | |
758 | } | |
759 | ||
760 | static void moxa_set_termios(struct tty_struct *tty, | |
606d099c | 761 | struct ktermios *old_termios) |
1da177e4 LT |
762 | { |
763 | struct moxa_str *ch = (struct moxa_str *) tty->driver_data; | |
764 | ||
765 | if (ch == NULL) | |
766 | return; | |
767 | set_tty_param(tty); | |
768 | if (!(old_termios->c_cflag & CLOCAL) && | |
769 | (tty->termios->c_cflag & CLOCAL)) | |
770 | wake_up_interruptible(&ch->open_wait); | |
771 | } | |
772 | ||
773 | static void moxa_stop(struct tty_struct *tty) | |
774 | { | |
775 | struct moxa_str *ch = (struct moxa_str *) tty->driver_data; | |
776 | ||
777 | if (ch == NULL) | |
778 | return; | |
779 | MoxaPortTxDisable(ch->port); | |
780 | ch->statusflags |= TXSTOPPED; | |
781 | } | |
782 | ||
783 | ||
784 | static void moxa_start(struct tty_struct *tty) | |
785 | { | |
786 | struct moxa_str *ch = (struct moxa_str *) tty->driver_data; | |
787 | ||
788 | if (ch == NULL) | |
789 | return; | |
790 | ||
791 | if (!(ch->statusflags & TXSTOPPED)) | |
792 | return; | |
793 | ||
794 | MoxaPortTxEnable(ch->port); | |
795 | ch->statusflags &= ~TXSTOPPED; | |
796 | } | |
797 | ||
798 | static void moxa_hangup(struct tty_struct *tty) | |
799 | { | |
800 | struct moxa_str *ch = (struct moxa_str *) tty->driver_data; | |
801 | ||
802 | moxa_flush_buffer(tty); | |
803 | shut_down(ch); | |
804 | ch->event = 0; | |
805 | ch->count = 0; | |
806 | ch->asyncflags &= ~ASYNC_NORMAL_ACTIVE; | |
807 | ch->tty = NULL; | |
808 | wake_up_interruptible(&ch->open_wait); | |
809 | } | |
810 | ||
811 | static void moxa_poll(unsigned long ignored) | |
812 | { | |
813 | register int card; | |
814 | struct moxa_str *ch; | |
815 | struct tty_struct *tp; | |
816 | int i, ports; | |
817 | ||
1da177e4 LT |
818 | del_timer(&moxaTimer); |
819 | ||
820 | if (MoxaDriverPoll() < 0) { | |
aa7e5221 | 821 | mod_timer(&moxaTimer, jiffies + HZ / 50); |
1da177e4 LT |
822 | return; |
823 | } | |
824 | for (card = 0; card < MAX_BOARDS; card++) { | |
825 | if ((ports = MoxaPortsOfCard(card)) <= 0) | |
826 | continue; | |
827 | ch = &moxaChannels[card * MAX_PORTS_PER_BOARD]; | |
828 | for (i = 0; i < ports; i++, ch++) { | |
829 | if ((ch->asyncflags & ASYNC_INITIALIZED) == 0) | |
830 | continue; | |
831 | if (!(ch->statusflags & THROTTLE) && | |
832 | (MoxaPortRxQueue(ch->port) > 0)) | |
833 | receive_data(ch); | |
834 | if ((tp = ch->tty) == 0) | |
835 | continue; | |
836 | if (ch->statusflags & LOWWAIT) { | |
837 | if (MoxaPortTxQueue(ch->port) <= WAKEUP_CHARS) { | |
838 | if (!tp->stopped) { | |
839 | ch->statusflags &= ~LOWWAIT; | |
840 | tty_wakeup(tp); | |
841 | } | |
842 | } | |
843 | } | |
844 | if (!I_IGNBRK(tp) && (MoxaPortResetBrkCnt(ch->port) > 0)) { | |
845 | tty_insert_flip_char(tp, 0, TTY_BREAK); | |
846 | tty_schedule_flip(tp); | |
847 | } | |
848 | if (MoxaPortDCDChange(ch->port)) { | |
849 | if (ch->asyncflags & ASYNC_CHECK_CD) { | |
850 | if (MoxaPortDCDON(ch->port)) | |
851 | wake_up_interruptible(&ch->open_wait); | |
852 | else { | |
ba196df3 JS |
853 | tty_hangup(tp); |
854 | wake_up_interruptible(&ch->open_wait); | |
855 | ch->asyncflags &= ~ASYNC_NORMAL_ACTIVE; | |
1da177e4 LT |
856 | } |
857 | } | |
858 | } | |
859 | } | |
860 | } | |
861 | ||
aa7e5221 | 862 | mod_timer(&moxaTimer, jiffies + HZ / 50); |
1da177e4 LT |
863 | } |
864 | ||
865 | /******************************************************************************/ | |
866 | ||
867 | static void set_tty_param(struct tty_struct *tty) | |
868 | { | |
606d099c | 869 | register struct ktermios *ts; |
1da177e4 LT |
870 | struct moxa_str *ch; |
871 | int rts, cts, txflow, rxflow, xany; | |
872 | ||
873 | ch = (struct moxa_str *) tty->driver_data; | |
874 | ts = tty->termios; | |
875 | if (ts->c_cflag & CLOCAL) | |
876 | ch->asyncflags &= ~ASYNC_CHECK_CD; | |
877 | else | |
878 | ch->asyncflags |= ASYNC_CHECK_CD; | |
879 | rts = cts = txflow = rxflow = xany = 0; | |
880 | if (ts->c_cflag & CRTSCTS) | |
881 | rts = cts = 1; | |
882 | if (ts->c_iflag & IXON) | |
883 | txflow = 1; | |
884 | if (ts->c_iflag & IXOFF) | |
885 | rxflow = 1; | |
886 | if (ts->c_iflag & IXANY) | |
887 | xany = 1; | |
888 | MoxaPortFlowCtrl(ch->port, rts, cts, txflow, rxflow, xany); | |
c7bce309 | 889 | MoxaPortSetTermio(ch->port, ts, tty_get_baud_rate(tty)); |
1da177e4 LT |
890 | } |
891 | ||
892 | static int block_till_ready(struct tty_struct *tty, struct file *filp, | |
893 | struct moxa_str *ch) | |
894 | { | |
895 | DECLARE_WAITQUEUE(wait,current); | |
896 | unsigned long flags; | |
897 | int retval; | |
898 | int do_clocal = C_CLOCAL(tty); | |
899 | ||
900 | /* | |
901 | * If the device is in the middle of being closed, then block | |
902 | * until it's done, and then try again. | |
903 | */ | |
904 | if (tty_hung_up_p(filp) || (ch->asyncflags & ASYNC_CLOSING)) { | |
905 | if (ch->asyncflags & ASYNC_CLOSING) | |
906 | interruptible_sleep_on(&ch->close_wait); | |
907 | #ifdef SERIAL_DO_RESTART | |
908 | if (ch->asyncflags & ASYNC_HUP_NOTIFY) | |
909 | return (-EAGAIN); | |
910 | else | |
911 | return (-ERESTARTSYS); | |
912 | #else | |
913 | return (-EAGAIN); | |
914 | #endif | |
915 | } | |
916 | /* | |
917 | * If non-blocking mode is set, then make the check up front | |
918 | * and then exit. | |
919 | */ | |
920 | if (filp->f_flags & O_NONBLOCK) { | |
921 | ch->asyncflags |= ASYNC_NORMAL_ACTIVE; | |
922 | return (0); | |
923 | } | |
924 | /* | |
925 | * Block waiting for the carrier detect and the line to become free | |
926 | */ | |
927 | retval = 0; | |
928 | add_wait_queue(&ch->open_wait, &wait); | |
929 | #ifdef SERIAL_DEBUG_OPEN | |
930 | printk("block_til_ready before block: ttys%d, count = %d\n", | |
931 | ch->line, ch->count); | |
932 | #endif | |
33f0f88f | 933 | spin_lock_irqsave(&moxa_lock, flags); |
1da177e4 LT |
934 | if (!tty_hung_up_p(filp)) |
935 | ch->count--; | |
1da177e4 | 936 | ch->blocked_open++; |
33f0f88f AC |
937 | spin_unlock_irqrestore(&moxa_lock, flags); |
938 | ||
1da177e4 LT |
939 | while (1) { |
940 | set_current_state(TASK_INTERRUPTIBLE); | |
941 | if (tty_hung_up_p(filp) || | |
942 | !(ch->asyncflags & ASYNC_INITIALIZED)) { | |
943 | #ifdef SERIAL_DO_RESTART | |
944 | if (ch->asyncflags & ASYNC_HUP_NOTIFY) | |
945 | retval = -EAGAIN; | |
946 | else | |
947 | retval = -ERESTARTSYS; | |
948 | #else | |
949 | retval = -EAGAIN; | |
950 | #endif | |
951 | break; | |
952 | } | |
953 | if (!(ch->asyncflags & ASYNC_CLOSING) && (do_clocal || | |
954 | MoxaPortDCDON(ch->port))) | |
955 | break; | |
956 | ||
957 | if (signal_pending(current)) { | |
958 | retval = -ERESTARTSYS; | |
959 | break; | |
960 | } | |
961 | schedule(); | |
962 | } | |
963 | set_current_state(TASK_RUNNING); | |
964 | remove_wait_queue(&ch->open_wait, &wait); | |
33f0f88f AC |
965 | |
966 | spin_lock_irqsave(&moxa_lock, flags); | |
1da177e4 LT |
967 | if (!tty_hung_up_p(filp)) |
968 | ch->count++; | |
969 | ch->blocked_open--; | |
33f0f88f | 970 | spin_unlock_irqrestore(&moxa_lock, flags); |
1da177e4 LT |
971 | #ifdef SERIAL_DEBUG_OPEN |
972 | printk("block_til_ready after blocking: ttys%d, count = %d\n", | |
973 | ch->line, ch->count); | |
974 | #endif | |
975 | if (retval) | |
976 | return (retval); | |
33f0f88f | 977 | /* FIXME: review to see if we need to use set_bit on these */ |
1da177e4 | 978 | ch->asyncflags |= ASYNC_NORMAL_ACTIVE; |
33f0f88f | 979 | return 0; |
1da177e4 LT |
980 | } |
981 | ||
982 | static void setup_empty_event(struct tty_struct *tty) | |
983 | { | |
984 | struct moxa_str *ch = tty->driver_data; | |
985 | unsigned long flags; | |
986 | ||
33f0f88f | 987 | spin_lock_irqsave(&moxa_lock, flags); |
1da177e4 | 988 | ch->statusflags |= EMPTYWAIT; |
aa7e5221 | 989 | mod_timer(&moxaEmptyTimer[ch->port], jiffies + HZ); |
33f0f88f | 990 | spin_unlock_irqrestore(&moxa_lock, flags); |
1da177e4 LT |
991 | } |
992 | ||
993 | static void check_xmit_empty(unsigned long data) | |
994 | { | |
995 | struct moxa_str *ch; | |
996 | ||
997 | ch = (struct moxa_str *) data; | |
c251ae0d | 998 | del_timer_sync(&moxaEmptyTimer[ch->port]); |
1da177e4 LT |
999 | if (ch->tty && (ch->statusflags & EMPTYWAIT)) { |
1000 | if (MoxaPortTxQueue(ch->port) == 0) { | |
1001 | ch->statusflags &= ~EMPTYWAIT; | |
1002 | tty_wakeup(ch->tty); | |
1003 | return; | |
1004 | } | |
aa7e5221 | 1005 | mod_timer(&moxaEmptyTimer[ch->port], jiffies + HZ); |
1da177e4 LT |
1006 | } else |
1007 | ch->statusflags &= ~EMPTYWAIT; | |
1008 | } | |
1009 | ||
1010 | static void shut_down(struct moxa_str *ch) | |
1011 | { | |
1012 | struct tty_struct *tp; | |
1013 | ||
1014 | if (!(ch->asyncflags & ASYNC_INITIALIZED)) | |
1015 | return; | |
1016 | ||
1017 | tp = ch->tty; | |
1018 | ||
1019 | MoxaPortDisable(ch->port); | |
1020 | ||
1021 | /* | |
1022 | * If we're a modem control device and HUPCL is on, drop RTS & DTR. | |
1023 | */ | |
1024 | if (tp->termios->c_cflag & HUPCL) | |
1025 | MoxaPortLineCtrl(ch->port, 0, 0); | |
1026 | ||
1027 | ch->asyncflags &= ~ASYNC_INITIALIZED; | |
1028 | } | |
1029 | ||
1030 | static void receive_data(struct moxa_str *ch) | |
1031 | { | |
1032 | struct tty_struct *tp; | |
606d099c | 1033 | struct ktermios *ts; |
1da177e4 LT |
1034 | unsigned long flags; |
1035 | ||
1036 | ts = NULL; | |
1037 | tp = ch->tty; | |
1038 | if (tp) | |
1039 | ts = tp->termios; | |
1040 | /************************************************** | |
1041 | if ( !tp || !ts || !(ts->c_cflag & CREAD) ) { | |
1042 | *****************************************************/ | |
1043 | if (!tp || !ts) { | |
1044 | MoxaPortFlushData(ch->port, 0); | |
1045 | return; | |
1046 | } | |
33f0f88f AC |
1047 | spin_lock_irqsave(&moxa_lock, flags); |
1048 | MoxaPortReadData(ch->port, tp); | |
1049 | spin_unlock_irqrestore(&moxa_lock, flags); | |
1050 | tty_schedule_flip(tp); | |
1da177e4 LT |
1051 | } |
1052 | ||
1053 | #define Magic_code 0x404 | |
1054 | ||
1055 | /* | |
1056 | * System Configuration | |
1057 | */ | |
1058 | /* | |
1059 | * for C218 BIOS initialization | |
1060 | */ | |
1061 | #define C218_ConfBase 0x800 | |
1062 | #define C218_status (C218_ConfBase + 0) /* BIOS running status */ | |
1063 | #define C218_diag (C218_ConfBase + 2) /* diagnostic status */ | |
1064 | #define C218_key (C218_ConfBase + 4) /* WORD (0x218 for C218) */ | |
1065 | #define C218DLoad_len (C218_ConfBase + 6) /* WORD */ | |
1066 | #define C218check_sum (C218_ConfBase + 8) /* BYTE */ | |
1067 | #define C218chksum_ok (C218_ConfBase + 0x0a) /* BYTE (1:ok) */ | |
1068 | #define C218_TestRx (C218_ConfBase + 0x10) /* 8 bytes for 8 ports */ | |
1069 | #define C218_TestTx (C218_ConfBase + 0x18) /* 8 bytes for 8 ports */ | |
1070 | #define C218_RXerr (C218_ConfBase + 0x20) /* 8 bytes for 8 ports */ | |
1071 | #define C218_ErrFlag (C218_ConfBase + 0x28) /* 8 bytes for 8 ports */ | |
1072 | ||
1073 | #define C218_LoadBuf 0x0F00 | |
1074 | #define C218_KeyCode 0x218 | |
1075 | #define CP204J_KeyCode 0x204 | |
1076 | ||
1077 | /* | |
1078 | * for C320 BIOS initialization | |
1079 | */ | |
1080 | #define C320_ConfBase 0x800 | |
1081 | #define C320_LoadBuf 0x0f00 | |
1082 | #define STS_init 0x05 /* for C320_status */ | |
1083 | ||
1084 | #define C320_status C320_ConfBase + 0 /* BIOS running status */ | |
1085 | #define C320_diag C320_ConfBase + 2 /* diagnostic status */ | |
1086 | #define C320_key C320_ConfBase + 4 /* WORD (0320H for C320) */ | |
1087 | #define C320DLoad_len C320_ConfBase + 6 /* WORD */ | |
1088 | #define C320check_sum C320_ConfBase + 8 /* WORD */ | |
1089 | #define C320chksum_ok C320_ConfBase + 0x0a /* WORD (1:ok) */ | |
1090 | #define C320bapi_len C320_ConfBase + 0x0c /* WORD */ | |
1091 | #define C320UART_no C320_ConfBase + 0x0e /* WORD */ | |
1092 | ||
1093 | #define C320_KeyCode 0x320 | |
1094 | ||
1095 | #define FixPage_addr 0x0000 /* starting addr of static page */ | |
1096 | #define DynPage_addr 0x2000 /* starting addr of dynamic page */ | |
1097 | #define C218_start 0x3000 /* starting addr of C218 BIOS prg */ | |
1098 | #define Control_reg 0x1ff0 /* select page and reset control */ | |
1099 | #define HW_reset 0x80 | |
1100 | ||
1101 | /* | |
1102 | * Function Codes | |
1103 | */ | |
1104 | #define FC_CardReset 0x80 | |
1105 | #define FC_ChannelReset 1 /* C320 firmware not supported */ | |
1106 | #define FC_EnableCH 2 | |
1107 | #define FC_DisableCH 3 | |
1108 | #define FC_SetParam 4 | |
1109 | #define FC_SetMode 5 | |
1110 | #define FC_SetRate 6 | |
1111 | #define FC_LineControl 7 | |
1112 | #define FC_LineStatus 8 | |
1113 | #define FC_XmitControl 9 | |
1114 | #define FC_FlushQueue 10 | |
1115 | #define FC_SendBreak 11 | |
1116 | #define FC_StopBreak 12 | |
1117 | #define FC_LoopbackON 13 | |
1118 | #define FC_LoopbackOFF 14 | |
1119 | #define FC_ClrIrqTable 15 | |
1120 | #define FC_SendXon 16 | |
1121 | #define FC_SetTermIrq 17 /* C320 firmware not supported */ | |
1122 | #define FC_SetCntIrq 18 /* C320 firmware not supported */ | |
1123 | #define FC_SetBreakIrq 19 | |
1124 | #define FC_SetLineIrq 20 | |
1125 | #define FC_SetFlowCtl 21 | |
1126 | #define FC_GenIrq 22 | |
1127 | #define FC_InCD180 23 | |
1128 | #define FC_OutCD180 24 | |
1129 | #define FC_InUARTreg 23 | |
1130 | #define FC_OutUARTreg 24 | |
1131 | #define FC_SetXonXoff 25 | |
1132 | #define FC_OutCD180CCR 26 | |
1133 | #define FC_ExtIQueue 27 | |
1134 | #define FC_ExtOQueue 28 | |
1135 | #define FC_ClrLineIrq 29 | |
1136 | #define FC_HWFlowCtl 30 | |
1137 | #define FC_GetClockRate 35 | |
1138 | #define FC_SetBaud 36 | |
1139 | #define FC_SetDataMode 41 | |
1140 | #define FC_GetCCSR 43 | |
1141 | #define FC_GetDataError 45 | |
1142 | #define FC_RxControl 50 | |
1143 | #define FC_ImmSend 51 | |
1144 | #define FC_SetXonState 52 | |
1145 | #define FC_SetXoffState 53 | |
1146 | #define FC_SetRxFIFOTrig 54 | |
1147 | #define FC_SetTxFIFOCnt 55 | |
1148 | #define FC_UnixRate 56 | |
1149 | #define FC_UnixResetTimer 57 | |
1150 | ||
1151 | #define RxFIFOTrig1 0 | |
1152 | #define RxFIFOTrig4 1 | |
1153 | #define RxFIFOTrig8 2 | |
1154 | #define RxFIFOTrig14 3 | |
1155 | ||
1156 | /* | |
1157 | * Dual-Ported RAM | |
1158 | */ | |
1159 | #define DRAM_global 0 | |
1160 | #define INT_data (DRAM_global + 0) | |
1161 | #define Config_base (DRAM_global + 0x108) | |
1162 | ||
1163 | #define IRQindex (INT_data + 0) | |
1164 | #define IRQpending (INT_data + 4) | |
1165 | #define IRQtable (INT_data + 8) | |
1166 | ||
1167 | /* | |
1168 | * Interrupt Status | |
1169 | */ | |
1170 | #define IntrRx 0x01 /* receiver data O.K. */ | |
1171 | #define IntrTx 0x02 /* transmit buffer empty */ | |
1172 | #define IntrFunc 0x04 /* function complete */ | |
1173 | #define IntrBreak 0x08 /* received break */ | |
1174 | #define IntrLine 0x10 /* line status change | |
1175 | for transmitter */ | |
1176 | #define IntrIntr 0x20 /* received INTR code */ | |
1177 | #define IntrQuit 0x40 /* received QUIT code */ | |
1178 | #define IntrEOF 0x80 /* received EOF code */ | |
1179 | ||
1180 | #define IntrRxTrigger 0x100 /* rx data count reach tigger value */ | |
1181 | #define IntrTxTrigger 0x200 /* tx data count below trigger value */ | |
1182 | ||
1183 | #define Magic_no (Config_base + 0) | |
1184 | #define Card_model_no (Config_base + 2) | |
1185 | #define Total_ports (Config_base + 4) | |
1186 | #define Module_cnt (Config_base + 8) | |
1187 | #define Module_no (Config_base + 10) | |
1188 | #define Timer_10ms (Config_base + 14) | |
1189 | #define Disable_IRQ (Config_base + 20) | |
1190 | #define TMS320_PORT1 (Config_base + 22) | |
1191 | #define TMS320_PORT2 (Config_base + 24) | |
1192 | #define TMS320_CLOCK (Config_base + 26) | |
1193 | ||
1194 | /* | |
1195 | * DATA BUFFER in DRAM | |
1196 | */ | |
1197 | #define Extern_table 0x400 /* Base address of the external table | |
1198 | (24 words * 64) total 3K bytes | |
1199 | (24 words * 128) total 6K bytes */ | |
1200 | #define Extern_size 0x60 /* 96 bytes */ | |
1201 | #define RXrptr 0x00 /* read pointer for RX buffer */ | |
1202 | #define RXwptr 0x02 /* write pointer for RX buffer */ | |
1203 | #define TXrptr 0x04 /* read pointer for TX buffer */ | |
1204 | #define TXwptr 0x06 /* write pointer for TX buffer */ | |
1205 | #define HostStat 0x08 /* IRQ flag and general flag */ | |
1206 | #define FlagStat 0x0A | |
1207 | #define FlowControl 0x0C /* B7 B6 B5 B4 B3 B2 B1 B0 */ | |
1208 | /* x x x x | | | | */ | |
1209 | /* | | | + CTS flow */ | |
1210 | /* | | +--- RTS flow */ | |
1211 | /* | +------ TX Xon/Xoff */ | |
1212 | /* +--------- RX Xon/Xoff */ | |
1213 | #define Break_cnt 0x0E /* received break count */ | |
1214 | #define CD180TXirq 0x10 /* if non-0: enable TX irq */ | |
1215 | #define RX_mask 0x12 | |
1216 | #define TX_mask 0x14 | |
1217 | #define Ofs_rxb 0x16 | |
1218 | #define Ofs_txb 0x18 | |
1219 | #define Page_rxb 0x1A | |
1220 | #define Page_txb 0x1C | |
1221 | #define EndPage_rxb 0x1E | |
1222 | #define EndPage_txb 0x20 | |
1223 | #define Data_error 0x22 | |
1224 | #define RxTrigger 0x28 | |
1225 | #define TxTrigger 0x2a | |
1226 | ||
1227 | #define rRXwptr 0x34 | |
1228 | #define Low_water 0x36 | |
1229 | ||
1230 | #define FuncCode 0x40 | |
1231 | #define FuncArg 0x42 | |
1232 | #define FuncArg1 0x44 | |
1233 | ||
1234 | #define C218rx_size 0x2000 /* 8K bytes */ | |
1235 | #define C218tx_size 0x8000 /* 32K bytes */ | |
1236 | ||
1237 | #define C218rx_mask (C218rx_size - 1) | |
1238 | #define C218tx_mask (C218tx_size - 1) | |
1239 | ||
1240 | #define C320p8rx_size 0x2000 | |
1241 | #define C320p8tx_size 0x8000 | |
1242 | #define C320p8rx_mask (C320p8rx_size - 1) | |
1243 | #define C320p8tx_mask (C320p8tx_size - 1) | |
1244 | ||
1245 | #define C320p16rx_size 0x2000 | |
1246 | #define C320p16tx_size 0x4000 | |
1247 | #define C320p16rx_mask (C320p16rx_size - 1) | |
1248 | #define C320p16tx_mask (C320p16tx_size - 1) | |
1249 | ||
1250 | #define C320p24rx_size 0x2000 | |
1251 | #define C320p24tx_size 0x2000 | |
1252 | #define C320p24rx_mask (C320p24rx_size - 1) | |
1253 | #define C320p24tx_mask (C320p24tx_size - 1) | |
1254 | ||
1255 | #define C320p32rx_size 0x1000 | |
1256 | #define C320p32tx_size 0x1000 | |
1257 | #define C320p32rx_mask (C320p32rx_size - 1) | |
1258 | #define C320p32tx_mask (C320p32tx_size - 1) | |
1259 | ||
1260 | #define Page_size 0x2000 | |
1261 | #define Page_mask (Page_size - 1) | |
1262 | #define C218rx_spage 3 | |
1263 | #define C218tx_spage 4 | |
1264 | #define C218rx_pageno 1 | |
1265 | #define C218tx_pageno 4 | |
1266 | #define C218buf_pageno 5 | |
1267 | ||
1268 | #define C320p8rx_spage 3 | |
1269 | #define C320p8tx_spage 4 | |
1270 | #define C320p8rx_pgno 1 | |
1271 | #define C320p8tx_pgno 4 | |
1272 | #define C320p8buf_pgno 5 | |
1273 | ||
1274 | #define C320p16rx_spage 3 | |
1275 | #define C320p16tx_spage 4 | |
1276 | #define C320p16rx_pgno 1 | |
1277 | #define C320p16tx_pgno 2 | |
1278 | #define C320p16buf_pgno 3 | |
1279 | ||
1280 | #define C320p24rx_spage 3 | |
1281 | #define C320p24tx_spage 4 | |
1282 | #define C320p24rx_pgno 1 | |
1283 | #define C320p24tx_pgno 1 | |
1284 | #define C320p24buf_pgno 2 | |
1285 | ||
1286 | #define C320p32rx_spage 3 | |
1287 | #define C320p32tx_ofs C320p32rx_size | |
1288 | #define C320p32tx_spage 3 | |
1289 | #define C320p32buf_pgno 1 | |
1290 | ||
1291 | /* | |
1292 | * Host Status | |
1293 | */ | |
1294 | #define WakeupRx 0x01 | |
1295 | #define WakeupTx 0x02 | |
1296 | #define WakeupBreak 0x08 | |
1297 | #define WakeupLine 0x10 | |
1298 | #define WakeupIntr 0x20 | |
1299 | #define WakeupQuit 0x40 | |
1300 | #define WakeupEOF 0x80 /* used in VTIME control */ | |
1301 | #define WakeupRxTrigger 0x100 | |
1302 | #define WakeupTxTrigger 0x200 | |
1303 | /* | |
1304 | * Flag status | |
1305 | */ | |
1306 | #define Rx_over 0x01 | |
1307 | #define Xoff_state 0x02 | |
1308 | #define Tx_flowOff 0x04 | |
1309 | #define Tx_enable 0x08 | |
1310 | #define CTS_state 0x10 | |
1311 | #define DSR_state 0x20 | |
1312 | #define DCD_state 0x80 | |
1313 | /* | |
1314 | * FlowControl | |
1315 | */ | |
1316 | #define CTS_FlowCtl 1 | |
1317 | #define RTS_FlowCtl 2 | |
1318 | #define Tx_FlowCtl 4 | |
1319 | #define Rx_FlowCtl 8 | |
1320 | #define IXM_IXANY 0x10 | |
1321 | ||
1322 | #define LowWater 128 | |
1323 | ||
1324 | #define DTR_ON 1 | |
1325 | #define RTS_ON 2 | |
1326 | #define CTS_ON 1 | |
1327 | #define DSR_ON 2 | |
1328 | #define DCD_ON 8 | |
1329 | ||
1330 | /* mode definition */ | |
1331 | #define MX_CS8 0x03 | |
1332 | #define MX_CS7 0x02 | |
1333 | #define MX_CS6 0x01 | |
1334 | #define MX_CS5 0x00 | |
1335 | ||
1336 | #define MX_STOP1 0x00 | |
1337 | #define MX_STOP15 0x04 | |
1338 | #define MX_STOP2 0x08 | |
1339 | ||
1340 | #define MX_PARNONE 0x00 | |
1341 | #define MX_PAREVEN 0x40 | |
1342 | #define MX_PARODD 0xC0 | |
1343 | ||
1344 | /* | |
1345 | * Query | |
1346 | */ | |
1da177e4 LT |
1347 | |
1348 | struct mon_str { | |
1349 | int tick; | |
1350 | int rxcnt[MAX_PORTS]; | |
1351 | int txcnt[MAX_PORTS]; | |
1352 | }; | |
1da177e4 LT |
1353 | |
1354 | #define DCD_changed 0x01 | |
1355 | #define DCD_oldstate 0x80 | |
1356 | ||
1357 | static unsigned char moxaBuff[10240]; | |
1358 | static void __iomem *moxaIntNdx[MAX_BOARDS]; | |
1359 | static void __iomem *moxaIntPend[MAX_BOARDS]; | |
1360 | static void __iomem *moxaIntTable[MAX_BOARDS]; | |
1361 | static char moxaChkPort[MAX_PORTS]; | |
1362 | static char moxaLineCtrl[MAX_PORTS]; | |
1363 | static void __iomem *moxaTableAddr[MAX_PORTS]; | |
1364 | static long moxaCurBaud[MAX_PORTS]; | |
1365 | static char moxaDCDState[MAX_PORTS]; | |
1366 | static char moxaLowChkFlag[MAX_PORTS]; | |
1367 | static int moxaLowWaterChk; | |
1368 | static int moxaCard; | |
9dff89cd | 1369 | static struct mon_str moxaLog; |
9fa372a8 | 1370 | static int moxaFuncTout = HZ / 2; |
1da177e4 LT |
1371 | static ushort moxaBreakCnt[MAX_PORTS]; |
1372 | ||
1373 | static void moxadelay(int); | |
1374 | static void moxafunc(void __iomem *, int, ushort); | |
1375 | static void wait_finish(void __iomem *); | |
1376 | static void low_water_check(void __iomem *); | |
1377 | static int moxaloadbios(int, unsigned char __user *, int); | |
1378 | static int moxafindcard(int); | |
1379 | static int moxaload320b(int, unsigned char __user *, int); | |
1380 | static int moxaloadcode(int, unsigned char __user *, int); | |
1381 | static int moxaloadc218(int, void __iomem *, int); | |
1382 | static int moxaloadc320(int, void __iomem *, int, int *); | |
1383 | ||
1384 | /***************************************************************************** | |
1385 | * Driver level functions: * | |
1386 | * 1. MoxaDriverInit(void); * | |
1387 | * 2. MoxaDriverIoctl(unsigned int cmd, unsigned long arg, int port); * | |
1388 | * 3. MoxaDriverPoll(void); * | |
1389 | *****************************************************************************/ | |
1390 | void MoxaDriverInit(void) | |
1391 | { | |
1392 | int i; | |
1393 | ||
1394 | moxaFuncTout = HZ / 2; /* 500 mini-seconds */ | |
1395 | moxaCard = 0; | |
1396 | moxaLog.tick = 0; | |
1397 | moxaLowWaterChk = 0; | |
1398 | for (i = 0; i < MAX_PORTS; i++) { | |
1399 | moxaChkPort[i] = 0; | |
1400 | moxaLowChkFlag[i] = 0; | |
1401 | moxaLineCtrl[i] = 0; | |
1402 | moxaLog.rxcnt[i] = 0; | |
1403 | moxaLog.txcnt[i] = 0; | |
1404 | } | |
1405 | } | |
1406 | ||
1407 | #define MOXA 0x400 | |
1408 | #define MOXA_GET_IQUEUE (MOXA + 1) /* get input buffered count */ | |
1409 | #define MOXA_GET_OQUEUE (MOXA + 2) /* get output buffered count */ | |
1410 | #define MOXA_INIT_DRIVER (MOXA + 6) /* moxaCard=0 */ | |
1411 | #define MOXA_LOAD_BIOS (MOXA + 9) /* download BIOS */ | |
1412 | #define MOXA_FIND_BOARD (MOXA + 10) /* Check if MOXA card exist? */ | |
1413 | #define MOXA_LOAD_C320B (MOXA + 11) /* download 320B firmware */ | |
1414 | #define MOXA_LOAD_CODE (MOXA + 12) /* download firmware */ | |
1415 | #define MOXA_GETDATACOUNT (MOXA + 23) | |
1416 | #define MOXA_GET_IOQUEUE (MOXA + 27) | |
1417 | #define MOXA_FLUSH_QUEUE (MOXA + 28) | |
1418 | #define MOXA_GET_CONF (MOXA + 35) /* configuration */ | |
1419 | #define MOXA_GET_MAJOR (MOXA + 63) | |
1420 | #define MOXA_GET_CUMAJOR (MOXA + 64) | |
1421 | #define MOXA_GETMSTATUS (MOXA + 65) | |
1422 | ||
1423 | ||
1424 | struct moxaq_str { | |
1425 | int inq; | |
1426 | int outq; | |
1427 | }; | |
1428 | ||
1429 | struct dl_str { | |
1430 | char __user *buf; | |
1431 | int len; | |
1432 | int cardno; | |
1433 | }; | |
1434 | ||
1435 | static struct moxaq_str temp_queue[MAX_PORTS]; | |
1436 | static struct dl_str dltmp; | |
1437 | ||
1438 | void MoxaPortFlushData(int port, int mode) | |
1439 | { | |
1440 | void __iomem *ofsAddr; | |
1441 | if ((mode < 0) || (mode > 2)) | |
1442 | return; | |
1443 | ofsAddr = moxaTableAddr[port]; | |
1444 | moxafunc(ofsAddr, FC_FlushQueue, mode); | |
1445 | if (mode != 1) { | |
1446 | moxaLowChkFlag[port] = 0; | |
1447 | low_water_check(ofsAddr); | |
1448 | } | |
1449 | } | |
1450 | ||
1451 | int MoxaDriverIoctl(unsigned int cmd, unsigned long arg, int port) | |
1452 | { | |
1453 | int i; | |
1454 | int status; | |
1455 | int MoxaPortTxQueue(int), MoxaPortRxQueue(int); | |
1456 | void __user *argp = (void __user *)arg; | |
1457 | ||
11324edd | 1458 | if (port == MAX_PORTS) { |
1da177e4 LT |
1459 | if ((cmd != MOXA_GET_CONF) && (cmd != MOXA_INIT_DRIVER) && |
1460 | (cmd != MOXA_LOAD_BIOS) && (cmd != MOXA_FIND_BOARD) && (cmd != MOXA_LOAD_C320B) && | |
1461 | (cmd != MOXA_LOAD_CODE) && (cmd != MOXA_GETDATACOUNT) && | |
1462 | (cmd != MOXA_GET_IOQUEUE) && (cmd != MOXA_GET_MAJOR) && | |
1463 | (cmd != MOXA_GET_CUMAJOR) && (cmd != MOXA_GETMSTATUS)) | |
1464 | return (-EINVAL); | |
1465 | } | |
1466 | switch (cmd) { | |
1467 | case MOXA_GET_CONF: | |
9dff89cd JS |
1468 | if(copy_to_user(argp, &moxa_boards, MAX_BOARDS * |
1469 | sizeof(struct moxa_board_conf))) | |
1da177e4 LT |
1470 | return -EFAULT; |
1471 | return (0); | |
1472 | case MOXA_INIT_DRIVER: | |
1473 | if ((int) arg == 0x404) | |
1474 | MoxaDriverInit(); | |
1475 | return (0); | |
1476 | case MOXA_GETDATACOUNT: | |
1477 | moxaLog.tick = jiffies; | |
9dff89cd | 1478 | if(copy_to_user(argp, &moxaLog, sizeof(struct mon_str))) |
1da177e4 LT |
1479 | return -EFAULT; |
1480 | return (0); | |
1481 | case MOXA_FLUSH_QUEUE: | |
1482 | MoxaPortFlushData(port, arg); | |
1483 | return (0); | |
1484 | case MOXA_GET_IOQUEUE: | |
1485 | for (i = 0; i < MAX_PORTS; i++) { | |
1486 | if (moxaChkPort[i]) { | |
1487 | temp_queue[i].inq = MoxaPortRxQueue(i); | |
1488 | temp_queue[i].outq = MoxaPortTxQueue(i); | |
1489 | } | |
1490 | } | |
1491 | if(copy_to_user(argp, temp_queue, sizeof(struct moxaq_str) * MAX_PORTS)) | |
1492 | return -EFAULT; | |
1493 | return (0); | |
1494 | case MOXA_GET_OQUEUE: | |
1495 | i = MoxaPortTxQueue(port); | |
1496 | return put_user(i, (unsigned long __user *)argp); | |
1497 | case MOXA_GET_IQUEUE: | |
1498 | i = MoxaPortRxQueue(port); | |
1499 | return put_user(i, (unsigned long __user *)argp); | |
1500 | case MOXA_GET_MAJOR: | |
1501 | if(copy_to_user(argp, &ttymajor, sizeof(int))) | |
1502 | return -EFAULT; | |
1503 | return 0; | |
1504 | case MOXA_GET_CUMAJOR: | |
1505 | i = 0; | |
1506 | if(copy_to_user(argp, &i, sizeof(int))) | |
1507 | return -EFAULT; | |
1508 | return 0; | |
1509 | case MOXA_GETMSTATUS: | |
1510 | for (i = 0; i < MAX_PORTS; i++) { | |
1511 | GMStatus[i].ri = 0; | |
1512 | GMStatus[i].dcd = 0; | |
1513 | GMStatus[i].dsr = 0; | |
1514 | GMStatus[i].cts = 0; | |
1515 | if (!moxaChkPort[i]) { | |
1516 | continue; | |
1517 | } else { | |
1518 | status = MoxaPortLineStatus(moxaChannels[i].port); | |
1519 | if (status & 1) | |
1520 | GMStatus[i].cts = 1; | |
1521 | if (status & 2) | |
1522 | GMStatus[i].dsr = 1; | |
1523 | if (status & 4) | |
1524 | GMStatus[i].dcd = 1; | |
1525 | } | |
1526 | ||
1527 | if (!moxaChannels[i].tty || !moxaChannels[i].tty->termios) | |
1528 | GMStatus[i].cflag = moxaChannels[i].cflag; | |
1529 | else | |
1530 | GMStatus[i].cflag = moxaChannels[i].tty->termios->c_cflag; | |
1531 | } | |
1532 | if(copy_to_user(argp, GMStatus, sizeof(struct mxser_mstatus) * MAX_PORTS)) | |
1533 | return -EFAULT; | |
1534 | return 0; | |
1535 | default: | |
1536 | return (-ENOIOCTLCMD); | |
1537 | case MOXA_LOAD_BIOS: | |
1538 | case MOXA_FIND_BOARD: | |
1539 | case MOXA_LOAD_C320B: | |
1540 | case MOXA_LOAD_CODE: | |
49cd619c AC |
1541 | if (!capable(CAP_SYS_RAWIO)) |
1542 | return -EPERM; | |
1da177e4 LT |
1543 | break; |
1544 | } | |
1545 | ||
1546 | if(copy_from_user(&dltmp, argp, sizeof(struct dl_str))) | |
1547 | return -EFAULT; | |
1548 | if(dltmp.cardno < 0 || dltmp.cardno >= MAX_BOARDS) | |
1549 | return -EINVAL; | |
1550 | ||
1551 | switch(cmd) | |
1552 | { | |
1553 | case MOXA_LOAD_BIOS: | |
1554 | i = moxaloadbios(dltmp.cardno, dltmp.buf, dltmp.len); | |
1555 | return (i); | |
1556 | case MOXA_FIND_BOARD: | |
1557 | return moxafindcard(dltmp.cardno); | |
1558 | case MOXA_LOAD_C320B: | |
1559 | moxaload320b(dltmp.cardno, dltmp.buf, dltmp.len); | |
1560 | default: /* to keep gcc happy */ | |
1561 | return (0); | |
1562 | case MOXA_LOAD_CODE: | |
1563 | i = moxaloadcode(dltmp.cardno, dltmp.buf, dltmp.len); | |
1564 | if (i == -1) | |
1565 | return (-EFAULT); | |
1566 | return (i); | |
1567 | ||
1568 | } | |
1569 | } | |
1570 | ||
1571 | int MoxaDriverPoll(void) | |
1572 | { | |
1573 | register ushort temp; | |
1574 | register int card; | |
1575 | void __iomem *ofsAddr; | |
1576 | void __iomem *ip; | |
1577 | int port, p, ports; | |
1578 | ||
1579 | if (moxaCard == 0) | |
1580 | return (-1); | |
1581 | for (card = 0; card < MAX_BOARDS; card++) { | |
01cfaf0d DE |
1582 | if (loadstat[card] == 0) |
1583 | continue; | |
1da177e4 LT |
1584 | if ((ports = moxa_boards[card].numPorts) == 0) |
1585 | continue; | |
1586 | if (readb(moxaIntPend[card]) == 0xff) { | |
1587 | ip = moxaIntTable[card] + readb(moxaIntNdx[card]); | |
1588 | p = card * MAX_PORTS_PER_BOARD; | |
1589 | ports <<= 1; | |
1590 | for (port = 0; port < ports; port += 2, p++) { | |
1591 | if ((temp = readw(ip + port)) != 0) { | |
1592 | writew(0, ip + port); | |
1593 | ofsAddr = moxaTableAddr[p]; | |
1594 | if (temp & IntrTx) | |
1595 | writew(readw(ofsAddr + HostStat) & ~WakeupTx, ofsAddr + HostStat); | |
1596 | if (temp & IntrBreak) { | |
1597 | moxaBreakCnt[p]++; | |
1598 | } | |
1599 | if (temp & IntrLine) { | |
1600 | if (readb(ofsAddr + FlagStat) & DCD_state) { | |
1601 | if ((moxaDCDState[p] & DCD_oldstate) == 0) | |
1602 | moxaDCDState[p] = (DCD_oldstate | | |
1603 | DCD_changed); | |
1604 | } else { | |
1605 | if (moxaDCDState[p] & DCD_oldstate) | |
1606 | moxaDCDState[p] = DCD_changed; | |
1607 | } | |
1608 | } | |
1609 | } | |
1610 | } | |
1611 | writeb(0, moxaIntPend[card]); | |
1612 | } | |
1613 | if (moxaLowWaterChk) { | |
1614 | p = card * MAX_PORTS_PER_BOARD; | |
1615 | for (port = 0; port < ports; port++, p++) { | |
1616 | if (moxaLowChkFlag[p]) { | |
1617 | moxaLowChkFlag[p] = 0; | |
1618 | ofsAddr = moxaTableAddr[p]; | |
1619 | low_water_check(ofsAddr); | |
1620 | } | |
1621 | } | |
1622 | } | |
1623 | } | |
1624 | moxaLowWaterChk = 0; | |
1625 | return (0); | |
1626 | } | |
1627 | ||
1628 | /***************************************************************************** | |
1629 | * Card level function: * | |
1630 | * 1. MoxaPortsOfCard(int cardno); * | |
1631 | *****************************************************************************/ | |
1632 | int MoxaPortsOfCard(int cardno) | |
1633 | { | |
1634 | ||
1635 | if (moxa_boards[cardno].boardType == 0) | |
1636 | return (0); | |
1637 | return (moxa_boards[cardno].numPorts); | |
1638 | } | |
1639 | ||
1640 | /***************************************************************************** | |
1641 | * Port level functions: * | |
1642 | * 1. MoxaPortIsValid(int port); * | |
1643 | * 2. MoxaPortEnable(int port); * | |
1644 | * 3. MoxaPortDisable(int port); * | |
1645 | * 4. MoxaPortGetMaxBaud(int port); * | |
1da177e4 | 1646 | * 6. MoxaPortSetBaud(int port, long baud); * |
1da177e4 LT |
1647 | * 8. MoxaPortSetTermio(int port, unsigned char *termio); * |
1648 | * 9. MoxaPortGetLineOut(int port, int *dtrState, int *rtsState); * | |
1649 | * 10. MoxaPortLineCtrl(int port, int dtrState, int rtsState); * | |
1650 | * 11. MoxaPortFlowCtrl(int port, int rts, int cts, int rx, int tx,int xany); * | |
1651 | * 12. MoxaPortLineStatus(int port); * | |
1652 | * 13. MoxaPortDCDChange(int port); * | |
1653 | * 14. MoxaPortDCDON(int port); * | |
1654 | * 15. MoxaPortFlushData(int port, int mode); * | |
1655 | * 16. MoxaPortWriteData(int port, unsigned char * buffer, int length); * | |
33f0f88f | 1656 | * 17. MoxaPortReadData(int port, struct tty_struct *tty); * |
1da177e4 LT |
1657 | * 20. MoxaPortTxQueue(int port); * |
1658 | * 21. MoxaPortTxFree(int port); * | |
1659 | * 22. MoxaPortRxQueue(int port); * | |
1da177e4 LT |
1660 | * 24. MoxaPortTxDisable(int port); * |
1661 | * 25. MoxaPortTxEnable(int port); * | |
1da177e4 | 1662 | * 27. MoxaPortResetBrkCnt(int port); * |
1da177e4 LT |
1663 | * 30. MoxaPortSendBreak(int port, int ticks); * |
1664 | *****************************************************************************/ | |
1665 | /* | |
1666 | * Moxa Port Number Description: | |
1667 | * | |
1668 | * MOXA serial driver supports up to 4 MOXA-C218/C320 boards. And, | |
1669 | * the port number using in MOXA driver functions will be 0 to 31 for | |
1670 | * first MOXA board, 32 to 63 for second, 64 to 95 for third and 96 | |
1671 | * to 127 for fourth. For example, if you setup three MOXA boards, | |
1672 | * first board is C218, second board is C320-16 and third board is | |
1673 | * C320-32. The port number of first board (C218 - 8 ports) is from | |
1674 | * 0 to 7. The port number of second board (C320 - 16 ports) is form | |
1675 | * 32 to 47. The port number of third board (C320 - 32 ports) is from | |
1676 | * 64 to 95. And those port numbers form 8 to 31, 48 to 63 and 96 to | |
1677 | * 127 will be invalid. | |
1678 | * | |
1679 | * | |
1680 | * Moxa Functions Description: | |
1681 | * | |
1682 | * Function 1: Driver initialization routine, this routine must be | |
1683 | * called when initialized driver. | |
1684 | * Syntax: | |
1685 | * void MoxaDriverInit(); | |
1686 | * | |
1687 | * | |
1688 | * Function 2: Moxa driver private IOCTL command processing. | |
1689 | * Syntax: | |
1690 | * int MoxaDriverIoctl(unsigned int cmd, unsigned long arg, int port); | |
1691 | * | |
1692 | * unsigned int cmd : IOCTL command | |
1693 | * unsigned long arg : IOCTL argument | |
1694 | * int port : port number (0 - 127) | |
1695 | * | |
1696 | * return: 0 (OK) | |
1697 | * -EINVAL | |
1698 | * -ENOIOCTLCMD | |
1699 | * | |
1700 | * | |
1701 | * Function 3: Moxa driver polling process routine. | |
1702 | * Syntax: | |
1703 | * int MoxaDriverPoll(void); | |
1704 | * | |
1705 | * return: 0 ; polling O.K. | |
1706 | * -1 : no any Moxa card. | |
1707 | * | |
1708 | * | |
1709 | * Function 4: Get the ports of this card. | |
1710 | * Syntax: | |
1711 | * int MoxaPortsOfCard(int cardno); | |
1712 | * | |
1713 | * int cardno : card number (0 - 3) | |
1714 | * | |
1715 | * return: 0 : this card is invalid | |
1716 | * 8/16/24/32 | |
1717 | * | |
1718 | * | |
1719 | * Function 5: Check this port is valid or invalid | |
1720 | * Syntax: | |
1721 | * int MoxaPortIsValid(int port); | |
1722 | * int port : port number (0 - 127, ref port description) | |
1723 | * | |
1724 | * return: 0 : this port is invalid | |
1725 | * 1 : this port is valid | |
1726 | * | |
1727 | * | |
1728 | * Function 6: Enable this port to start Tx/Rx data. | |
1729 | * Syntax: | |
1730 | * void MoxaPortEnable(int port); | |
1731 | * int port : port number (0 - 127) | |
1732 | * | |
1733 | * | |
1734 | * Function 7: Disable this port | |
1735 | * Syntax: | |
1736 | * void MoxaPortDisable(int port); | |
1737 | * int port : port number (0 - 127) | |
1738 | * | |
1739 | * | |
1740 | * Function 8: Get the maximun available baud rate of this port. | |
1741 | * Syntax: | |
1742 | * long MoxaPortGetMaxBaud(int port); | |
1743 | * int port : port number (0 - 127) | |
1744 | * | |
1745 | * return: 0 : this port is invalid | |
1746 | * 38400/57600/115200 bps | |
1747 | * | |
1748 | * | |
1da177e4 LT |
1749 | * Function 10: Setting baud rate of this port. |
1750 | * Syntax: | |
1751 | * long MoxaPortSetBaud(int port, long baud); | |
1752 | * int port : port number (0 - 127) | |
1753 | * long baud : baud rate (50 - 115200) | |
1754 | * | |
1755 | * return: 0 : this port is invalid or baud < 50 | |
1756 | * 50 - 115200 : the real baud rate set to the port, if | |
1757 | * the argument baud is large than maximun | |
1758 | * available baud rate, the real setting | |
1759 | * baud rate will be the maximun baud rate. | |
1760 | * | |
1761 | * | |
1da177e4 LT |
1762 | * Function 12: Configure the port. |
1763 | * Syntax: | |
606d099c | 1764 | * int MoxaPortSetTermio(int port, struct ktermios *termio, speed_t baud); |
1da177e4 | 1765 | * int port : port number (0 - 127) |
606d099c | 1766 | * struct ktermios * termio : termio structure pointer |
c7bce309 | 1767 | * speed_t baud : baud rate |
1da177e4 LT |
1768 | * |
1769 | * return: -1 : this port is invalid or termio == NULL | |
1770 | * 0 : setting O.K. | |
1771 | * | |
1772 | * | |
1773 | * Function 13: Get the DTR/RTS state of this port. | |
1774 | * Syntax: | |
1775 | * int MoxaPortGetLineOut(int port, int *dtrState, int *rtsState); | |
1776 | * int port : port number (0 - 127) | |
1777 | * int * dtrState : pointer to INT to receive the current DTR | |
1778 | * state. (if NULL, this function will not | |
1779 | * write to this address) | |
1780 | * int * rtsState : pointer to INT to receive the current RTS | |
1781 | * state. (if NULL, this function will not | |
1782 | * write to this address) | |
1783 | * | |
1784 | * return: -1 : this port is invalid | |
1785 | * 0 : O.K. | |
1786 | * | |
1787 | * | |
1788 | * Function 14: Setting the DTR/RTS output state of this port. | |
1789 | * Syntax: | |
1790 | * void MoxaPortLineCtrl(int port, int dtrState, int rtsState); | |
1791 | * int port : port number (0 - 127) | |
1792 | * int dtrState : DTR output state (0: off, 1: on) | |
1793 | * int rtsState : RTS output state (0: off, 1: on) | |
1794 | * | |
1795 | * | |
1796 | * Function 15: Setting the flow control of this port. | |
1797 | * Syntax: | |
1798 | * void MoxaPortFlowCtrl(int port, int rtsFlow, int ctsFlow, int rxFlow, | |
1799 | * int txFlow,int xany); | |
1800 | * int port : port number (0 - 127) | |
1801 | * int rtsFlow : H/W RTS flow control (0: no, 1: yes) | |
1802 | * int ctsFlow : H/W CTS flow control (0: no, 1: yes) | |
1803 | * int rxFlow : S/W Rx XON/XOFF flow control (0: no, 1: yes) | |
1804 | * int txFlow : S/W Tx XON/XOFF flow control (0: no, 1: yes) | |
1805 | * int xany : S/W XANY flow control (0: no, 1: yes) | |
1806 | * | |
1807 | * | |
1808 | * Function 16: Get ths line status of this port | |
1809 | * Syntax: | |
1810 | * int MoxaPortLineStatus(int port); | |
1811 | * int port : port number (0 - 127) | |
1812 | * | |
1813 | * return: Bit 0 - CTS state (0: off, 1: on) | |
1814 | * Bit 1 - DSR state (0: off, 1: on) | |
1815 | * Bit 2 - DCD state (0: off, 1: on) | |
1816 | * | |
1817 | * | |
1818 | * Function 17: Check the DCD state has changed since the last read | |
1819 | * of this function. | |
1820 | * Syntax: | |
1821 | * int MoxaPortDCDChange(int port); | |
1822 | * int port : port number (0 - 127) | |
1823 | * | |
1824 | * return: 0 : no changed | |
1825 | * 1 : DCD has changed | |
1826 | * | |
1827 | * | |
1828 | * Function 18: Check ths current DCD state is ON or not. | |
1829 | * Syntax: | |
1830 | * int MoxaPortDCDON(int port); | |
1831 | * int port : port number (0 - 127) | |
1832 | * | |
1833 | * return: 0 : DCD off | |
1834 | * 1 : DCD on | |
1835 | * | |
1836 | * | |
1837 | * Function 19: Flush the Rx/Tx buffer data of this port. | |
1838 | * Syntax: | |
1839 | * void MoxaPortFlushData(int port, int mode); | |
1840 | * int port : port number (0 - 127) | |
1841 | * int mode | |
1842 | * 0 : flush the Rx buffer | |
1843 | * 1 : flush the Tx buffer | |
1844 | * 2 : flush the Rx and Tx buffer | |
1845 | * | |
1846 | * | |
1847 | * Function 20: Write data. | |
1848 | * Syntax: | |
1849 | * int MoxaPortWriteData(int port, unsigned char * buffer, int length); | |
1850 | * int port : port number (0 - 127) | |
1851 | * unsigned char * buffer : pointer to write data buffer. | |
1852 | * int length : write data length | |
1853 | * | |
1854 | * return: 0 - length : real write data length | |
1855 | * | |
1856 | * | |
1857 | * Function 21: Read data. | |
1858 | * Syntax: | |
33f0f88f | 1859 | * int MoxaPortReadData(int port, struct tty_struct *tty); |
1da177e4 | 1860 | * int port : port number (0 - 127) |
33f0f88f | 1861 | * struct tty_struct *tty : tty for data |
1da177e4 LT |
1862 | * |
1863 | * return: 0 - length : real read data length | |
1864 | * | |
1865 | * | |
1da177e4 LT |
1866 | * Function 24: Get the Tx buffer current queued data bytes |
1867 | * Syntax: | |
1868 | * int MoxaPortTxQueue(int port); | |
1869 | * int port : port number (0 - 127) | |
1870 | * | |
1871 | * return: .. : Tx buffer current queued data bytes | |
1872 | * | |
1873 | * | |
1874 | * Function 25: Get the Tx buffer current free space | |
1875 | * Syntax: | |
1876 | * int MoxaPortTxFree(int port); | |
1877 | * int port : port number (0 - 127) | |
1878 | * | |
1879 | * return: .. : Tx buffer current free space | |
1880 | * | |
1881 | * | |
1882 | * Function 26: Get the Rx buffer current queued data bytes | |
1883 | * Syntax: | |
1884 | * int MoxaPortRxQueue(int port); | |
1885 | * int port : port number (0 - 127) | |
1886 | * | |
1887 | * return: .. : Rx buffer current queued data bytes | |
1888 | * | |
1889 | * | |
1da177e4 LT |
1890 | * Function 28: Disable port data transmission. |
1891 | * Syntax: | |
1892 | * void MoxaPortTxDisable(int port); | |
1893 | * int port : port number (0 - 127) | |
1894 | * | |
1895 | * | |
1896 | * Function 29: Enable port data transmission. | |
1897 | * Syntax: | |
1898 | * void MoxaPortTxEnable(int port); | |
1899 | * int port : port number (0 - 127) | |
1900 | * | |
1901 | * | |
1da177e4 LT |
1902 | * Function 31: Get the received BREAK signal count and reset it. |
1903 | * Syntax: | |
1904 | * int MoxaPortResetBrkCnt(int port); | |
1905 | * int port : port number (0 - 127) | |
1906 | * | |
1907 | * return: 0 - .. : BREAK signal count | |
1908 | * | |
1909 | * | |
1da177e4 LT |
1910 | * Function 34: Send out a BREAK signal. |
1911 | * Syntax: | |
1912 | * void MoxaPortSendBreak(int port, int ms100); | |
1913 | * int port : port number (0 - 127) | |
1914 | * int ms100 : break signal time interval. | |
1915 | * unit: 100 mini-second. if ms100 == 0, it will | |
1916 | * send out a about 250 ms BREAK signal. | |
1917 | * | |
1918 | */ | |
1919 | int MoxaPortIsValid(int port) | |
1920 | { | |
1921 | ||
1922 | if (moxaCard == 0) | |
1923 | return (0); | |
1924 | if (moxaChkPort[port] == 0) | |
1925 | return (0); | |
1926 | return (1); | |
1927 | } | |
1928 | ||
1929 | void MoxaPortEnable(int port) | |
1930 | { | |
1931 | void __iomem *ofsAddr; | |
1932 | int MoxaPortLineStatus(int); | |
1933 | short lowwater = 512; | |
1934 | ||
1935 | ofsAddr = moxaTableAddr[port]; | |
1936 | writew(lowwater, ofsAddr + Low_water); | |
1937 | moxaBreakCnt[port] = 0; | |
1938 | if ((moxa_boards[port / MAX_PORTS_PER_BOARD].boardType == MOXA_BOARD_C320_ISA) || | |
1939 | (moxa_boards[port / MAX_PORTS_PER_BOARD].boardType == MOXA_BOARD_C320_PCI)) { | |
1940 | moxafunc(ofsAddr, FC_SetBreakIrq, 0); | |
1941 | } else { | |
1942 | writew(readw(ofsAddr + HostStat) | WakeupBreak, ofsAddr + HostStat); | |
1943 | } | |
1944 | ||
1945 | moxafunc(ofsAddr, FC_SetLineIrq, Magic_code); | |
1946 | moxafunc(ofsAddr, FC_FlushQueue, 2); | |
1947 | ||
1948 | moxafunc(ofsAddr, FC_EnableCH, Magic_code); | |
1949 | MoxaPortLineStatus(port); | |
1950 | } | |
1951 | ||
1952 | void MoxaPortDisable(int port) | |
1953 | { | |
1954 | void __iomem *ofsAddr = moxaTableAddr[port]; | |
1955 | ||
1956 | moxafunc(ofsAddr, FC_SetFlowCtl, 0); /* disable flow control */ | |
1957 | moxafunc(ofsAddr, FC_ClrLineIrq, Magic_code); | |
1958 | writew(0, ofsAddr + HostStat); | |
1959 | moxafunc(ofsAddr, FC_DisableCH, Magic_code); | |
1960 | } | |
1961 | ||
1962 | long MoxaPortGetMaxBaud(int port) | |
1963 | { | |
1964 | if ((moxa_boards[port / MAX_PORTS_PER_BOARD].boardType == MOXA_BOARD_C320_ISA) || | |
1965 | (moxa_boards[port / MAX_PORTS_PER_BOARD].boardType == MOXA_BOARD_C320_PCI)) | |
1966 | return (460800L); | |
1967 | else | |
1968 | return (921600L); | |
1969 | } | |
1970 | ||
1971 | ||
1972 | long MoxaPortSetBaud(int port, long baud) | |
1973 | { | |
1974 | void __iomem *ofsAddr; | |
1975 | long max, clock; | |
1976 | unsigned int val; | |
1977 | ||
1978 | if ((baud < 50L) || ((max = MoxaPortGetMaxBaud(port)) == 0)) | |
1979 | return (0); | |
1980 | ofsAddr = moxaTableAddr[port]; | |
1981 | if (baud > max) | |
1982 | baud = max; | |
1983 | if (max == 38400L) | |
1984 | clock = 614400L; /* for 9.8304 Mhz : max. 38400 bps */ | |
1985 | else if (max == 57600L) | |
1986 | clock = 691200L; /* for 11.0592 Mhz : max. 57600 bps */ | |
1987 | else | |
1988 | clock = 921600L; /* for 14.7456 Mhz : max. 115200 bps */ | |
1989 | val = clock / baud; | |
1990 | moxafunc(ofsAddr, FC_SetBaud, val); | |
1991 | baud = clock / val; | |
1992 | moxaCurBaud[port] = baud; | |
1993 | return (baud); | |
1994 | } | |
1995 | ||
606d099c | 1996 | int MoxaPortSetTermio(int port, struct ktermios *termio, speed_t baud) |
1da177e4 LT |
1997 | { |
1998 | void __iomem *ofsAddr; | |
1999 | tcflag_t cflag; | |
1da177e4 LT |
2000 | tcflag_t mode = 0; |
2001 | ||
2002 | if (moxaChkPort[port] == 0 || termio == 0) | |
2003 | return (-1); | |
2004 | ofsAddr = moxaTableAddr[port]; | |
2005 | cflag = termio->c_cflag; /* termio->c_cflag */ | |
2006 | ||
2007 | mode = termio->c_cflag & CSIZE; | |
2008 | if (mode == CS5) | |
2009 | mode = MX_CS5; | |
2010 | else if (mode == CS6) | |
2011 | mode = MX_CS6; | |
2012 | else if (mode == CS7) | |
2013 | mode = MX_CS7; | |
2014 | else if (mode == CS8) | |
2015 | mode = MX_CS8; | |
2016 | ||
2017 | if (termio->c_cflag & CSTOPB) { | |
2018 | if (mode == MX_CS5) | |
2019 | mode |= MX_STOP15; | |
2020 | else | |
2021 | mode |= MX_STOP2; | |
2022 | } else | |
2023 | mode |= MX_STOP1; | |
2024 | ||
2025 | if (termio->c_cflag & PARENB) { | |
2026 | if (termio->c_cflag & PARODD) | |
2027 | mode |= MX_PARODD; | |
2028 | else | |
2029 | mode |= MX_PAREVEN; | |
2030 | } else | |
2031 | mode |= MX_PARNONE; | |
2032 | ||
2033 | moxafunc(ofsAddr, FC_SetDataMode, (ushort) mode); | |
2034 | ||
1da177e4 LT |
2035 | if ((moxa_boards[port / MAX_PORTS_PER_BOARD].boardType == MOXA_BOARD_C320_ISA) || |
2036 | (moxa_boards[port / MAX_PORTS_PER_BOARD].boardType == MOXA_BOARD_C320_PCI)) { | |
c7bce309 | 2037 | if (baud >= 921600L) |
1da177e4 LT |
2038 | return (-1); |
2039 | } | |
2040 | MoxaPortSetBaud(port, baud); | |
2041 | ||
2042 | if (termio->c_iflag & (IXON | IXOFF | IXANY)) { | |
2043 | writeb(termio->c_cc[VSTART], ofsAddr + FuncArg); | |
2044 | writeb(termio->c_cc[VSTOP], ofsAddr + FuncArg1); | |
2045 | writeb(FC_SetXonXoff, ofsAddr + FuncCode); | |
2046 | wait_finish(ofsAddr); | |
2047 | ||
2048 | } | |
2049 | return (0); | |
2050 | } | |
2051 | ||
2052 | int MoxaPortGetLineOut(int port, int *dtrState, int *rtsState) | |
2053 | { | |
2054 | ||
2055 | if (!MoxaPortIsValid(port)) | |
2056 | return (-1); | |
2057 | if (dtrState) { | |
2058 | if (moxaLineCtrl[port] & DTR_ON) | |
2059 | *dtrState = 1; | |
2060 | else | |
2061 | *dtrState = 0; | |
2062 | } | |
2063 | if (rtsState) { | |
2064 | if (moxaLineCtrl[port] & RTS_ON) | |
2065 | *rtsState = 1; | |
2066 | else | |
2067 | *rtsState = 0; | |
2068 | } | |
2069 | return (0); | |
2070 | } | |
2071 | ||
2072 | void MoxaPortLineCtrl(int port, int dtr, int rts) | |
2073 | { | |
2074 | void __iomem *ofsAddr; | |
2075 | int mode; | |
2076 | ||
2077 | ofsAddr = moxaTableAddr[port]; | |
2078 | mode = 0; | |
2079 | if (dtr) | |
2080 | mode |= DTR_ON; | |
2081 | if (rts) | |
2082 | mode |= RTS_ON; | |
2083 | moxaLineCtrl[port] = mode; | |
2084 | moxafunc(ofsAddr, FC_LineControl, mode); | |
2085 | } | |
2086 | ||
2087 | void MoxaPortFlowCtrl(int port, int rts, int cts, int txflow, int rxflow, int txany) | |
2088 | { | |
2089 | void __iomem *ofsAddr; | |
2090 | int mode; | |
2091 | ||
2092 | ofsAddr = moxaTableAddr[port]; | |
2093 | mode = 0; | |
2094 | if (rts) | |
2095 | mode |= RTS_FlowCtl; | |
2096 | if (cts) | |
2097 | mode |= CTS_FlowCtl; | |
2098 | if (txflow) | |
2099 | mode |= Tx_FlowCtl; | |
2100 | if (rxflow) | |
2101 | mode |= Rx_FlowCtl; | |
2102 | if (txany) | |
2103 | mode |= IXM_IXANY; | |
2104 | moxafunc(ofsAddr, FC_SetFlowCtl, mode); | |
2105 | } | |
2106 | ||
2107 | int MoxaPortLineStatus(int port) | |
2108 | { | |
2109 | void __iomem *ofsAddr; | |
2110 | int val; | |
2111 | ||
2112 | ofsAddr = moxaTableAddr[port]; | |
2113 | if ((moxa_boards[port / MAX_PORTS_PER_BOARD].boardType == MOXA_BOARD_C320_ISA) || | |
2114 | (moxa_boards[port / MAX_PORTS_PER_BOARD].boardType == MOXA_BOARD_C320_PCI)) { | |
2115 | moxafunc(ofsAddr, FC_LineStatus, 0); | |
2116 | val = readw(ofsAddr + FuncArg); | |
2117 | } else { | |
2118 | val = readw(ofsAddr + FlagStat) >> 4; | |
2119 | } | |
2120 | val &= 0x0B; | |
2121 | if (val & 8) { | |
2122 | val |= 4; | |
2123 | if ((moxaDCDState[port] & DCD_oldstate) == 0) | |
2124 | moxaDCDState[port] = (DCD_oldstate | DCD_changed); | |
2125 | } else { | |
2126 | if (moxaDCDState[port] & DCD_oldstate) | |
2127 | moxaDCDState[port] = DCD_changed; | |
2128 | } | |
2129 | val &= 7; | |
2130 | return (val); | |
2131 | } | |
2132 | ||
2133 | int MoxaPortDCDChange(int port) | |
2134 | { | |
2135 | int n; | |
2136 | ||
2137 | if (moxaChkPort[port] == 0) | |
2138 | return (0); | |
2139 | n = moxaDCDState[port]; | |
2140 | moxaDCDState[port] &= ~DCD_changed; | |
2141 | n &= DCD_changed; | |
2142 | return (n); | |
2143 | } | |
2144 | ||
2145 | int MoxaPortDCDON(int port) | |
2146 | { | |
2147 | int n; | |
2148 | ||
2149 | if (moxaChkPort[port] == 0) | |
2150 | return (0); | |
2151 | if (moxaDCDState[port] & DCD_oldstate) | |
2152 | n = 1; | |
2153 | else | |
2154 | n = 0; | |
2155 | return (n); | |
2156 | } | |
2157 | ||
1da177e4 LT |
2158 | int MoxaPortWriteData(int port, unsigned char * buffer, int len) |
2159 | { | |
2160 | int c, total, i; | |
2161 | ushort tail; | |
2162 | int cnt; | |
2163 | ushort head, tx_mask, spage, epage; | |
2164 | ushort pageno, pageofs, bufhead; | |
2165 | void __iomem *baseAddr, *ofsAddr, *ofs; | |
2166 | ||
2167 | ofsAddr = moxaTableAddr[port]; | |
2168 | baseAddr = moxaBaseAddr[port / MAX_PORTS_PER_BOARD]; | |
2169 | tx_mask = readw(ofsAddr + TX_mask); | |
2170 | spage = readw(ofsAddr + Page_txb); | |
2171 | epage = readw(ofsAddr + EndPage_txb); | |
2172 | tail = readw(ofsAddr + TXwptr); | |
2173 | head = readw(ofsAddr + TXrptr); | |
2174 | c = (head > tail) ? (head - tail - 1) | |
2175 | : (head - tail + tx_mask); | |
2176 | if (c > len) | |
2177 | c = len; | |
2178 | moxaLog.txcnt[port] += c; | |
2179 | total = c; | |
2180 | if (spage == epage) { | |
2181 | bufhead = readw(ofsAddr + Ofs_txb); | |
2182 | writew(spage, baseAddr + Control_reg); | |
2183 | while (c > 0) { | |
2184 | if (head > tail) | |
2185 | len = head - tail - 1; | |
2186 | else | |
2187 | len = tx_mask + 1 - tail; | |
2188 | len = (c > len) ? len : c; | |
2189 | ofs = baseAddr + DynPage_addr + bufhead + tail; | |
2190 | for (i = 0; i < len; i++) | |
2191 | writeb(*buffer++, ofs + i); | |
2192 | tail = (tail + len) & tx_mask; | |
2193 | c -= len; | |
2194 | } | |
2195 | writew(tail, ofsAddr + TXwptr); | |
2196 | } else { | |
2197 | len = c; | |
2198 | pageno = spage + (tail >> 13); | |
2199 | pageofs = tail & Page_mask; | |
2200 | do { | |
2201 | cnt = Page_size - pageofs; | |
2202 | if (cnt > c) | |
2203 | cnt = c; | |
2204 | c -= cnt; | |
2205 | writeb(pageno, baseAddr + Control_reg); | |
2206 | ofs = baseAddr + DynPage_addr + pageofs; | |
2207 | for (i = 0; i < cnt; i++) | |
2208 | writeb(*buffer++, ofs + i); | |
2209 | if (c == 0) { | |
2210 | writew((tail + len) & tx_mask, ofsAddr + TXwptr); | |
2211 | break; | |
2212 | } | |
2213 | if (++pageno == epage) | |
2214 | pageno = spage; | |
2215 | pageofs = 0; | |
2216 | } while (1); | |
2217 | } | |
2218 | writeb(1, ofsAddr + CD180TXirq); /* start to send */ | |
2219 | return (total); | |
2220 | } | |
2221 | ||
33f0f88f | 2222 | int MoxaPortReadData(int port, struct tty_struct *tty) |
1da177e4 LT |
2223 | { |
2224 | register ushort head, pageofs; | |
2225 | int i, count, cnt, len, total, remain; | |
2226 | ushort tail, rx_mask, spage, epage; | |
2227 | ushort pageno, bufhead; | |
2228 | void __iomem *baseAddr, *ofsAddr, *ofs; | |
2229 | ||
2230 | ofsAddr = moxaTableAddr[port]; | |
2231 | baseAddr = moxaBaseAddr[port / MAX_PORTS_PER_BOARD]; | |
2232 | head = readw(ofsAddr + RXrptr); | |
2233 | tail = readw(ofsAddr + RXwptr); | |
2234 | rx_mask = readw(ofsAddr + RX_mask); | |
2235 | spage = readw(ofsAddr + Page_rxb); | |
2236 | epage = readw(ofsAddr + EndPage_rxb); | |
2237 | count = (tail >= head) ? (tail - head) | |
2238 | : (tail - head + rx_mask + 1); | |
2239 | if (count == 0) | |
33f0f88f | 2240 | return 0; |
1da177e4 | 2241 | |
33f0f88f | 2242 | total = count; |
1da177e4 LT |
2243 | remain = count - total; |
2244 | moxaLog.rxcnt[port] += total; | |
2245 | count = total; | |
2246 | if (spage == epage) { | |
2247 | bufhead = readw(ofsAddr + Ofs_rxb); | |
2248 | writew(spage, baseAddr + Control_reg); | |
2249 | while (count > 0) { | |
2250 | if (tail >= head) | |
2251 | len = tail - head; | |
2252 | else | |
2253 | len = rx_mask + 1 - head; | |
2254 | len = (count > len) ? len : count; | |
2255 | ofs = baseAddr + DynPage_addr + bufhead + head; | |
2256 | for (i = 0; i < len; i++) | |
33f0f88f | 2257 | tty_insert_flip_char(tty, readb(ofs + i), TTY_NORMAL); |
1da177e4 LT |
2258 | head = (head + len) & rx_mask; |
2259 | count -= len; | |
2260 | } | |
2261 | writew(head, ofsAddr + RXrptr); | |
2262 | } else { | |
2263 | len = count; | |
2264 | pageno = spage + (head >> 13); | |
2265 | pageofs = head & Page_mask; | |
2266 | do { | |
2267 | cnt = Page_size - pageofs; | |
2268 | if (cnt > count) | |
2269 | cnt = count; | |
2270 | count -= cnt; | |
2271 | writew(pageno, baseAddr + Control_reg); | |
2272 | ofs = baseAddr + DynPage_addr + pageofs; | |
2273 | for (i = 0; i < cnt; i++) | |
33f0f88f | 2274 | tty_insert_flip_char(tty, readb(ofs + i), TTY_NORMAL); |
1da177e4 LT |
2275 | if (count == 0) { |
2276 | writew((head + len) & rx_mask, ofsAddr + RXrptr); | |
2277 | break; | |
2278 | } | |
2279 | if (++pageno == epage) | |
2280 | pageno = spage; | |
2281 | pageofs = 0; | |
2282 | } while (1); | |
2283 | } | |
2284 | if ((readb(ofsAddr + FlagStat) & Xoff_state) && (remain < LowWater)) { | |
2285 | moxaLowWaterChk = 1; | |
2286 | moxaLowChkFlag[port] = 1; | |
2287 | } | |
2288 | return (total); | |
2289 | } | |
2290 | ||
2291 | ||
2292 | int MoxaPortTxQueue(int port) | |
2293 | { | |
2294 | void __iomem *ofsAddr; | |
2295 | ushort rptr, wptr, mask; | |
2296 | int len; | |
2297 | ||
2298 | ofsAddr = moxaTableAddr[port]; | |
2299 | rptr = readw(ofsAddr + TXrptr); | |
2300 | wptr = readw(ofsAddr + TXwptr); | |
2301 | mask = readw(ofsAddr + TX_mask); | |
2302 | len = (wptr - rptr) & mask; | |
2303 | return (len); | |
2304 | } | |
2305 | ||
2306 | int MoxaPortTxFree(int port) | |
2307 | { | |
2308 | void __iomem *ofsAddr; | |
2309 | ushort rptr, wptr, mask; | |
2310 | int len; | |
2311 | ||
2312 | ofsAddr = moxaTableAddr[port]; | |
2313 | rptr = readw(ofsAddr + TXrptr); | |
2314 | wptr = readw(ofsAddr + TXwptr); | |
2315 | mask = readw(ofsAddr + TX_mask); | |
2316 | len = mask - ((wptr - rptr) & mask); | |
2317 | return (len); | |
2318 | } | |
2319 | ||
2320 | int MoxaPortRxQueue(int port) | |
2321 | { | |
2322 | void __iomem *ofsAddr; | |
2323 | ushort rptr, wptr, mask; | |
2324 | int len; | |
2325 | ||
2326 | ofsAddr = moxaTableAddr[port]; | |
2327 | rptr = readw(ofsAddr + RXrptr); | |
2328 | wptr = readw(ofsAddr + RXwptr); | |
2329 | mask = readw(ofsAddr + RX_mask); | |
2330 | len = (wptr - rptr) & mask; | |
2331 | return (len); | |
2332 | } | |
2333 | ||
2334 | ||
2335 | void MoxaPortTxDisable(int port) | |
2336 | { | |
2337 | void __iomem *ofsAddr; | |
2338 | ||
2339 | ofsAddr = moxaTableAddr[port]; | |
2340 | moxafunc(ofsAddr, FC_SetXoffState, Magic_code); | |
2341 | } | |
2342 | ||
2343 | void MoxaPortTxEnable(int port) | |
2344 | { | |
2345 | void __iomem *ofsAddr; | |
2346 | ||
2347 | ofsAddr = moxaTableAddr[port]; | |
2348 | moxafunc(ofsAddr, FC_SetXonState, Magic_code); | |
2349 | } | |
2350 | ||
2351 | ||
2352 | int MoxaPortResetBrkCnt(int port) | |
2353 | { | |
2354 | ushort cnt; | |
2355 | cnt = moxaBreakCnt[port]; | |
2356 | moxaBreakCnt[port] = 0; | |
2357 | return (cnt); | |
2358 | } | |
2359 | ||
2360 | ||
2361 | void MoxaPortSendBreak(int port, int ms100) | |
2362 | { | |
2363 | void __iomem *ofsAddr; | |
2364 | ||
2365 | ofsAddr = moxaTableAddr[port]; | |
2366 | if (ms100) { | |
2367 | moxafunc(ofsAddr, FC_SendBreak, Magic_code); | |
2368 | moxadelay(ms100 * (HZ / 10)); | |
2369 | } else { | |
2370 | moxafunc(ofsAddr, FC_SendBreak, Magic_code); | |
2371 | moxadelay(HZ / 4); /* 250 ms */ | |
2372 | } | |
2373 | moxafunc(ofsAddr, FC_StopBreak, Magic_code); | |
2374 | } | |
2375 | ||
2376 | static int moxa_get_serial_info(struct moxa_str *info, | |
2377 | struct serial_struct __user *retinfo) | |
2378 | { | |
2379 | struct serial_struct tmp; | |
2380 | ||
2381 | memset(&tmp, 0, sizeof(tmp)); | |
2382 | tmp.type = info->type; | |
2383 | tmp.line = info->port; | |
2384 | tmp.port = 0; | |
2385 | tmp.irq = 0; | |
2386 | tmp.flags = info->asyncflags; | |
2387 | tmp.baud_base = 921600; | |
2388 | tmp.close_delay = info->close_delay; | |
2389 | tmp.closing_wait = info->closing_wait; | |
2390 | tmp.custom_divisor = 0; | |
2391 | tmp.hub6 = 0; | |
2392 | if(copy_to_user(retinfo, &tmp, sizeof(*retinfo))) | |
2393 | return -EFAULT; | |
2394 | return (0); | |
2395 | } | |
2396 | ||
2397 | ||
2398 | static int moxa_set_serial_info(struct moxa_str *info, | |
2399 | struct serial_struct __user *new_info) | |
2400 | { | |
2401 | struct serial_struct new_serial; | |
2402 | ||
2403 | if(copy_from_user(&new_serial, new_info, sizeof(new_serial))) | |
2404 | return -EFAULT; | |
2405 | ||
2406 | if ((new_serial.irq != 0) || | |
2407 | (new_serial.port != 0) || | |
2408 | // (new_serial.type != info->type) || | |
2409 | (new_serial.custom_divisor != 0) || | |
2410 | (new_serial.baud_base != 921600)) | |
2411 | return (-EPERM); | |
2412 | ||
2413 | if (!capable(CAP_SYS_ADMIN)) { | |
2414 | if (((new_serial.flags & ~ASYNC_USR_MASK) != | |
2415 | (info->asyncflags & ~ASYNC_USR_MASK))) | |
2416 | return (-EPERM); | |
2417 | } else { | |
2418 | info->close_delay = new_serial.close_delay * HZ / 100; | |
2419 | info->closing_wait = new_serial.closing_wait * HZ / 100; | |
2420 | } | |
2421 | ||
2422 | new_serial.flags = (new_serial.flags & ~ASYNC_FLAGS); | |
2423 | new_serial.flags |= (info->asyncflags & ASYNC_FLAGS); | |
2424 | ||
2425 | if (new_serial.type == PORT_16550A) { | |
2426 | MoxaSetFifo(info->port, 1); | |
2427 | } else { | |
2428 | MoxaSetFifo(info->port, 0); | |
2429 | } | |
2430 | ||
2431 | info->type = new_serial.type; | |
2432 | return (0); | |
2433 | } | |
2434 | ||
2435 | ||
2436 | ||
2437 | /***************************************************************************** | |
2438 | * Static local functions: * | |
2439 | *****************************************************************************/ | |
2440 | /* | |
2441 | * moxadelay - delays a specified number ticks | |
2442 | */ | |
2443 | static void moxadelay(int tick) | |
2444 | { | |
2445 | unsigned long st, et; | |
2446 | ||
2447 | st = jiffies; | |
2448 | et = st + tick; | |
2449 | while (time_before(jiffies, et)); | |
2450 | } | |
2451 | ||
2452 | static void moxafunc(void __iomem *ofsAddr, int cmd, ushort arg) | |
2453 | { | |
2454 | ||
2455 | writew(arg, ofsAddr + FuncArg); | |
2456 | writew(cmd, ofsAddr + FuncCode); | |
2457 | wait_finish(ofsAddr); | |
2458 | } | |
2459 | ||
2460 | static void wait_finish(void __iomem *ofsAddr) | |
2461 | { | |
2462 | unsigned long i, j; | |
2463 | ||
2464 | i = jiffies; | |
2465 | while (readw(ofsAddr + FuncCode) != 0) { | |
2466 | j = jiffies; | |
2467 | if ((j - i) > moxaFuncTout) { | |
2468 | return; | |
2469 | } | |
2470 | } | |
2471 | } | |
2472 | ||
2473 | static void low_water_check(void __iomem *ofsAddr) | |
2474 | { | |
2475 | int len; | |
2476 | ushort rptr, wptr, mask; | |
2477 | ||
2478 | if (readb(ofsAddr + FlagStat) & Xoff_state) { | |
2479 | rptr = readw(ofsAddr + RXrptr); | |
2480 | wptr = readw(ofsAddr + RXwptr); | |
2481 | mask = readw(ofsAddr + RX_mask); | |
2482 | len = (wptr - rptr) & mask; | |
2483 | if (len <= Low_water) | |
2484 | moxafunc(ofsAddr, FC_SendXon, 0); | |
2485 | } | |
2486 | } | |
2487 | ||
2488 | static int moxaloadbios(int cardno, unsigned char __user *tmp, int len) | |
2489 | { | |
2490 | void __iomem *baseAddr; | |
2491 | int i; | |
2492 | ||
2493 | if(copy_from_user(moxaBuff, tmp, len)) | |
2494 | return -EFAULT; | |
2495 | baseAddr = moxaBaseAddr[cardno]; | |
2496 | writeb(HW_reset, baseAddr + Control_reg); /* reset */ | |
2497 | moxadelay(1); /* delay 10 ms */ | |
2498 | for (i = 0; i < 4096; i++) | |
2499 | writeb(0, baseAddr + i); /* clear fix page */ | |
2500 | for (i = 0; i < len; i++) | |
2501 | writeb(moxaBuff[i], baseAddr + i); /* download BIOS */ | |
2502 | writeb(0, baseAddr + Control_reg); /* restart */ | |
2503 | return (0); | |
2504 | } | |
2505 | ||
2506 | static int moxafindcard(int cardno) | |
2507 | { | |
2508 | void __iomem *baseAddr; | |
2509 | ushort tmp; | |
2510 | ||
2511 | baseAddr = moxaBaseAddr[cardno]; | |
2512 | switch (moxa_boards[cardno].boardType) { | |
2513 | case MOXA_BOARD_C218_ISA: | |
2514 | case MOXA_BOARD_C218_PCI: | |
2515 | if ((tmp = readw(baseAddr + C218_key)) != C218_KeyCode) { | |
2516 | return (-1); | |
2517 | } | |
2518 | break; | |
2519 | case MOXA_BOARD_CP204J: | |
2520 | if ((tmp = readw(baseAddr + C218_key)) != CP204J_KeyCode) { | |
2521 | return (-1); | |
2522 | } | |
2523 | break; | |
2524 | default: | |
2525 | if ((tmp = readw(baseAddr + C320_key)) != C320_KeyCode) { | |
2526 | return (-1); | |
2527 | } | |
2528 | if ((tmp = readw(baseAddr + C320_status)) != STS_init) { | |
2529 | return (-2); | |
2530 | } | |
2531 | } | |
2532 | return (0); | |
2533 | } | |
2534 | ||
2535 | static int moxaload320b(int cardno, unsigned char __user *tmp, int len) | |
2536 | { | |
2537 | void __iomem *baseAddr; | |
2538 | int i; | |
2539 | ||
2540 | if(len > sizeof(moxaBuff)) | |
2541 | return -EINVAL; | |
2542 | if(copy_from_user(moxaBuff, tmp, len)) | |
2543 | return -EFAULT; | |
2544 | baseAddr = moxaBaseAddr[cardno]; | |
2545 | writew(len - 7168 - 2, baseAddr + C320bapi_len); | |
2546 | writeb(1, baseAddr + Control_reg); /* Select Page 1 */ | |
2547 | for (i = 0; i < 7168; i++) | |
2548 | writeb(moxaBuff[i], baseAddr + DynPage_addr + i); | |
2549 | writeb(2, baseAddr + Control_reg); /* Select Page 2 */ | |
2550 | for (i = 0; i < (len - 7168); i++) | |
2551 | writeb(moxaBuff[i + 7168], baseAddr + DynPage_addr + i); | |
2552 | return (0); | |
2553 | } | |
2554 | ||
2555 | static int moxaloadcode(int cardno, unsigned char __user *tmp, int len) | |
2556 | { | |
2557 | void __iomem *baseAddr, *ofsAddr; | |
2558 | int retval, port, i; | |
2559 | ||
2560 | if(copy_from_user(moxaBuff, tmp, len)) | |
2561 | return -EFAULT; | |
2562 | baseAddr = moxaBaseAddr[cardno]; | |
2563 | switch (moxa_boards[cardno].boardType) { | |
2564 | case MOXA_BOARD_C218_ISA: | |
2565 | case MOXA_BOARD_C218_PCI: | |
2566 | case MOXA_BOARD_CP204J: | |
2567 | retval = moxaloadc218(cardno, baseAddr, len); | |
2568 | if (retval) | |
2569 | return (retval); | |
2570 | port = cardno * MAX_PORTS_PER_BOARD; | |
2571 | for (i = 0; i < moxa_boards[cardno].numPorts; i++, port++) { | |
2572 | moxaChkPort[port] = 1; | |
2573 | moxaCurBaud[port] = 9600L; | |
2574 | moxaDCDState[port] = 0; | |
2575 | moxaTableAddr[port] = baseAddr + Extern_table + Extern_size * i; | |
2576 | ofsAddr = moxaTableAddr[port]; | |
2577 | writew(C218rx_mask, ofsAddr + RX_mask); | |
2578 | writew(C218tx_mask, ofsAddr + TX_mask); | |
2579 | writew(C218rx_spage + i * C218buf_pageno, ofsAddr + Page_rxb); | |
2580 | writew(readw(ofsAddr + Page_rxb) + C218rx_pageno, ofsAddr + EndPage_rxb); | |
2581 | ||
2582 | writew(C218tx_spage + i * C218buf_pageno, ofsAddr + Page_txb); | |
2583 | writew(readw(ofsAddr + Page_txb) + C218tx_pageno, ofsAddr + EndPage_txb); | |
2584 | ||
2585 | } | |
2586 | break; | |
2587 | default: | |
2588 | retval = moxaloadc320(cardno, baseAddr, len, | |
2589 | &moxa_boards[cardno].numPorts); | |
2590 | if (retval) | |
2591 | return (retval); | |
2592 | port = cardno * MAX_PORTS_PER_BOARD; | |
2593 | for (i = 0; i < moxa_boards[cardno].numPorts; i++, port++) { | |
2594 | moxaChkPort[port] = 1; | |
2595 | moxaCurBaud[port] = 9600L; | |
2596 | moxaDCDState[port] = 0; | |
2597 | moxaTableAddr[port] = baseAddr + Extern_table + Extern_size * i; | |
2598 | ofsAddr = moxaTableAddr[port]; | |
2599 | if (moxa_boards[cardno].numPorts == 8) { | |
2600 | writew(C320p8rx_mask, ofsAddr + RX_mask); | |
2601 | writew(C320p8tx_mask, ofsAddr + TX_mask); | |
2602 | writew(C320p8rx_spage + i * C320p8buf_pgno, ofsAddr + Page_rxb); | |
2603 | writew(readw(ofsAddr + Page_rxb) + C320p8rx_pgno, ofsAddr + EndPage_rxb); | |
2604 | writew(C320p8tx_spage + i * C320p8buf_pgno, ofsAddr + Page_txb); | |
2605 | writew(readw(ofsAddr + Page_txb) + C320p8tx_pgno, ofsAddr + EndPage_txb); | |
2606 | ||
2607 | } else if (moxa_boards[cardno].numPorts == 16) { | |
2608 | writew(C320p16rx_mask, ofsAddr + RX_mask); | |
2609 | writew(C320p16tx_mask, ofsAddr + TX_mask); | |
2610 | writew(C320p16rx_spage + i * C320p16buf_pgno, ofsAddr + Page_rxb); | |
2611 | writew(readw(ofsAddr + Page_rxb) + C320p16rx_pgno, ofsAddr + EndPage_rxb); | |
2612 | writew(C320p16tx_spage + i * C320p16buf_pgno, ofsAddr + Page_txb); | |
2613 | writew(readw(ofsAddr + Page_txb) + C320p16tx_pgno, ofsAddr + EndPage_txb); | |
2614 | ||
2615 | } else if (moxa_boards[cardno].numPorts == 24) { | |
2616 | writew(C320p24rx_mask, ofsAddr + RX_mask); | |
2617 | writew(C320p24tx_mask, ofsAddr + TX_mask); | |
2618 | writew(C320p24rx_spage + i * C320p24buf_pgno, ofsAddr + Page_rxb); | |
2619 | writew(readw(ofsAddr + Page_rxb) + C320p24rx_pgno, ofsAddr + EndPage_rxb); | |
2620 | writew(C320p24tx_spage + i * C320p24buf_pgno, ofsAddr + Page_txb); | |
2621 | writew(readw(ofsAddr + Page_txb), ofsAddr + EndPage_txb); | |
2622 | } else if (moxa_boards[cardno].numPorts == 32) { | |
2623 | writew(C320p32rx_mask, ofsAddr + RX_mask); | |
2624 | writew(C320p32tx_mask, ofsAddr + TX_mask); | |
2625 | writew(C320p32tx_ofs, ofsAddr + Ofs_txb); | |
2626 | writew(C320p32rx_spage + i * C320p32buf_pgno, ofsAddr + Page_rxb); | |
2627 | writew(readb(ofsAddr + Page_rxb), ofsAddr + EndPage_rxb); | |
2628 | writew(C320p32tx_spage + i * C320p32buf_pgno, ofsAddr + Page_txb); | |
2629 | writew(readw(ofsAddr + Page_txb), ofsAddr + EndPage_txb); | |
2630 | } | |
2631 | } | |
2632 | break; | |
2633 | } | |
01cfaf0d | 2634 | loadstat[cardno] = 1; |
1da177e4 LT |
2635 | return (0); |
2636 | } | |
2637 | ||
2638 | static int moxaloadc218(int cardno, void __iomem *baseAddr, int len) | |
2639 | { | |
2640 | char retry; | |
2641 | int i, j, len1, len2; | |
2642 | ushort usum, *ptr, keycode; | |
2643 | ||
2644 | if (moxa_boards[cardno].boardType == MOXA_BOARD_CP204J) | |
2645 | keycode = CP204J_KeyCode; | |
2646 | else | |
2647 | keycode = C218_KeyCode; | |
2648 | usum = 0; | |
2649 | len1 = len >> 1; | |
2650 | ptr = (ushort *) moxaBuff; | |
2651 | for (i = 0; i < len1; i++) | |
01cfaf0d | 2652 | usum += le16_to_cpu(*(ptr + i)); |
1da177e4 LT |
2653 | retry = 0; |
2654 | do { | |
2655 | len1 = len >> 1; | |
2656 | j = 0; | |
2657 | while (len1) { | |
2658 | len2 = (len1 > 2048) ? 2048 : len1; | |
2659 | len1 -= len2; | |
2660 | for (i = 0; i < len2 << 1; i++) | |
2661 | writeb(moxaBuff[i + j], baseAddr + C218_LoadBuf + i); | |
2662 | j += i; | |
2663 | ||
2664 | writew(len2, baseAddr + C218DLoad_len); | |
2665 | writew(0, baseAddr + C218_key); | |
2666 | for (i = 0; i < 100; i++) { | |
2667 | if (readw(baseAddr + C218_key) == keycode) | |
2668 | break; | |
2669 | moxadelay(1); /* delay 10 ms */ | |
2670 | } | |
2671 | if (readw(baseAddr + C218_key) != keycode) { | |
2672 | return (-1); | |
2673 | } | |
2674 | } | |
2675 | writew(0, baseAddr + C218DLoad_len); | |
2676 | writew(usum, baseAddr + C218check_sum); | |
2677 | writew(0, baseAddr + C218_key); | |
2678 | for (i = 0; i < 100; i++) { | |
2679 | if (readw(baseAddr + C218_key) == keycode) | |
2680 | break; | |
2681 | moxadelay(1); /* delay 10 ms */ | |
2682 | } | |
2683 | retry++; | |
2684 | } while ((readb(baseAddr + C218chksum_ok) != 1) && (retry < 3)); | |
2685 | if (readb(baseAddr + C218chksum_ok) != 1) { | |
2686 | return (-1); | |
2687 | } | |
2688 | writew(0, baseAddr + C218_key); | |
2689 | for (i = 0; i < 100; i++) { | |
2690 | if (readw(baseAddr + Magic_no) == Magic_code) | |
2691 | break; | |
2692 | moxadelay(1); /* delay 10 ms */ | |
2693 | } | |
2694 | if (readw(baseAddr + Magic_no) != Magic_code) { | |
2695 | return (-1); | |
2696 | } | |
2697 | writew(1, baseAddr + Disable_IRQ); | |
2698 | writew(0, baseAddr + Magic_no); | |
2699 | for (i = 0; i < 100; i++) { | |
2700 | if (readw(baseAddr + Magic_no) == Magic_code) | |
2701 | break; | |
2702 | moxadelay(1); /* delay 10 ms */ | |
2703 | } | |
2704 | if (readw(baseAddr + Magic_no) != Magic_code) { | |
2705 | return (-1); | |
2706 | } | |
2707 | moxaCard = 1; | |
2708 | moxaIntNdx[cardno] = baseAddr + IRQindex; | |
2709 | moxaIntPend[cardno] = baseAddr + IRQpending; | |
2710 | moxaIntTable[cardno] = baseAddr + IRQtable; | |
2711 | return (0); | |
2712 | } | |
2713 | ||
2714 | static int moxaloadc320(int cardno, void __iomem *baseAddr, int len, int *numPorts) | |
2715 | { | |
2716 | ushort usum; | |
2717 | int i, j, wlen, len2, retry; | |
2718 | ushort *uptr; | |
2719 | ||
2720 | usum = 0; | |
2721 | wlen = len >> 1; | |
2722 | uptr = (ushort *) moxaBuff; | |
2723 | for (i = 0; i < wlen; i++) | |
01cfaf0d | 2724 | usum += le16_to_cpu(uptr[i]); |
1da177e4 LT |
2725 | retry = 0; |
2726 | j = 0; | |
2727 | do { | |
2728 | while (wlen) { | |
2729 | if (wlen > 2048) | |
2730 | len2 = 2048; | |
2731 | else | |
2732 | len2 = wlen; | |
2733 | wlen -= len2; | |
2734 | len2 <<= 1; | |
2735 | for (i = 0; i < len2; i++) | |
2736 | writeb(moxaBuff[j + i], baseAddr + C320_LoadBuf + i); | |
2737 | len2 >>= 1; | |
2738 | j += i; | |
2739 | writew(len2, baseAddr + C320DLoad_len); | |
2740 | writew(0, baseAddr + C320_key); | |
2741 | for (i = 0; i < 10; i++) { | |
2742 | if (readw(baseAddr + C320_key) == C320_KeyCode) | |
2743 | break; | |
2744 | moxadelay(1); | |
2745 | } | |
2746 | if (readw(baseAddr + C320_key) != C320_KeyCode) | |
2747 | return (-1); | |
2748 | } | |
2749 | writew(0, baseAddr + C320DLoad_len); | |
2750 | writew(usum, baseAddr + C320check_sum); | |
2751 | writew(0, baseAddr + C320_key); | |
2752 | for (i = 0; i < 10; i++) { | |
2753 | if (readw(baseAddr + C320_key) == C320_KeyCode) | |
2754 | break; | |
2755 | moxadelay(1); | |
2756 | } | |
2757 | retry++; | |
2758 | } while ((readb(baseAddr + C320chksum_ok) != 1) && (retry < 3)); | |
2759 | if (readb(baseAddr + C320chksum_ok) != 1) | |
2760 | return (-1); | |
2761 | writew(0, baseAddr + C320_key); | |
2762 | for (i = 0; i < 600; i++) { | |
2763 | if (readw(baseAddr + Magic_no) == Magic_code) | |
2764 | break; | |
2765 | moxadelay(1); | |
2766 | } | |
2767 | if (readw(baseAddr + Magic_no) != Magic_code) | |
2768 | return (-100); | |
2769 | ||
2770 | if (moxa_boards[cardno].busType == MOXA_BUS_TYPE_PCI) { /* ASIC board */ | |
2771 | writew(0x3800, baseAddr + TMS320_PORT1); | |
2772 | writew(0x3900, baseAddr + TMS320_PORT2); | |
2773 | writew(28499, baseAddr + TMS320_CLOCK); | |
2774 | } else { | |
2775 | writew(0x3200, baseAddr + TMS320_PORT1); | |
2776 | writew(0x3400, baseAddr + TMS320_PORT2); | |
2777 | writew(19999, baseAddr + TMS320_CLOCK); | |
2778 | } | |
2779 | writew(1, baseAddr + Disable_IRQ); | |
2780 | writew(0, baseAddr + Magic_no); | |
2781 | for (i = 0; i < 500; i++) { | |
2782 | if (readw(baseAddr + Magic_no) == Magic_code) | |
2783 | break; | |
2784 | moxadelay(1); | |
2785 | } | |
2786 | if (readw(baseAddr + Magic_no) != Magic_code) | |
2787 | return (-102); | |
2788 | ||
2789 | j = readw(baseAddr + Module_cnt); | |
2790 | if (j <= 0) | |
2791 | return (-101); | |
2792 | *numPorts = j * 8; | |
2793 | writew(j, baseAddr + Module_no); | |
2794 | writew(0, baseAddr + Magic_no); | |
2795 | for (i = 0; i < 600; i++) { | |
2796 | if (readw(baseAddr + Magic_no) == Magic_code) | |
2797 | break; | |
2798 | moxadelay(1); | |
2799 | } | |
2800 | if (readw(baseAddr + Magic_no) != Magic_code) | |
2801 | return (-102); | |
2802 | moxaCard = 1; | |
2803 | moxaIntNdx[cardno] = baseAddr + IRQindex; | |
2804 | moxaIntPend[cardno] = baseAddr + IRQpending; | |
2805 | moxaIntTable[cardno] = baseAddr + IRQtable; | |
2806 | return (0); | |
2807 | } | |
2808 | ||
1da177e4 LT |
2809 | static void MoxaSetFifo(int port, int enable) |
2810 | { | |
2811 | void __iomem *ofsAddr = moxaTableAddr[port]; | |
2812 | ||
2813 | if (!enable) { | |
2814 | moxafunc(ofsAddr, FC_SetRxFIFOTrig, 0); | |
2815 | moxafunc(ofsAddr, FC_SetTxFIFOCnt, 1); | |
2816 | } else { | |
2817 | moxafunc(ofsAddr, FC_SetRxFIFOTrig, 3); | |
2818 | moxafunc(ofsAddr, FC_SetTxFIFOCnt, 16); | |
2819 | } | |
2820 | } |