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Commit | Line | Data |
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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
1da177e4 LT |
2 | /* |
3 | * Simulated Serial Driver (fake serial) | |
4 | * | |
5 | * This driver is mostly used for bringup purposes and will go away. | |
6 | * It has a strong dependency on the system console. All outputs | |
7 | * are rerouted to the same facility as the one used by printk which, in our | |
adb636fe | 8 | * case means sys_sim.c console (goes via the simulator). |
1da177e4 LT |
9 | * |
10 | * Copyright (C) 1999-2000, 2002-2003 Hewlett-Packard Co | |
11 | * Stephane Eranian <eranian@hpl.hp.com> | |
12 | * David Mosberger-Tang <davidm@hpl.hp.com> | |
1da177e4 LT |
13 | */ |
14 | ||
1da177e4 LT |
15 | #include <linux/init.h> |
16 | #include <linux/errno.h> | |
17 | #include <linux/sched.h> | |
b17b0153 | 18 | #include <linux/sched/debug.h> |
1da177e4 LT |
19 | #include <linux/tty.h> |
20 | #include <linux/tty_flip.h> | |
21 | #include <linux/major.h> | |
22 | #include <linux/fcntl.h> | |
23 | #include <linux/mm.h> | |
bf54215e | 24 | #include <linux/seq_file.h> |
1da177e4 | 25 | #include <linux/slab.h> |
a9415644 | 26 | #include <linux/capability.h> |
3c4782dc | 27 | #include <linux/circ_buf.h> |
1da177e4 | 28 | #include <linux/console.h> |
8b916330 | 29 | #include <linux/irq.h> |
1da177e4 LT |
30 | #include <linux/module.h> |
31 | #include <linux/serial.h> | |
819c67e6 | 32 | #include <linux/sysrq.h> |
8b916330 | 33 | #include <linux/uaccess.h> |
1da177e4 | 34 | |
035cfe5a | 35 | #include <asm/hpsim.h> |
1da177e4 | 36 | |
035cfe5a JS |
37 | #include "hpsim_ssc.h" |
38 | ||
1da177e4 LT |
39 | #undef SIMSERIAL_DEBUG /* define this to get some debug information */ |
40 | ||
41 | #define KEYBOARD_INTR 3 /* must match with simulator! */ | |
42 | ||
43 | #define NR_PORTS 1 /* only one port for now */ | |
1da177e4 | 44 | |
3c4782dc | 45 | struct serial_state { |
7f32f8dd | 46 | struct tty_port port; |
3c4782dc JS |
47 | struct circ_buf xmit; |
48 | int irq; | |
49 | int x_char; | |
50 | }; | |
51 | ||
fd2d7a6e | 52 | static struct serial_state rs_table[NR_PORTS]; |
1da177e4 LT |
53 | |
54 | struct tty_driver *hp_simserial_driver; | |
55 | ||
1da177e4 LT |
56 | static struct console *console; |
57 | ||
2e124b4a | 58 | static void receive_chars(struct tty_port *port) |
1da177e4 LT |
59 | { |
60 | unsigned char ch; | |
61 | static unsigned char seen_esc = 0; | |
62 | ||
63 | while ( (ch = ia64_ssc(0, 0, 0, 0, SSC_GETCHAR)) ) { | |
f66279cd | 64 | if (ch == 27 && seen_esc == 0) { |
1da177e4 LT |
65 | seen_esc = 1; |
66 | continue; | |
f66279cd JS |
67 | } else if (seen_esc == 1 && ch == 'O') { |
68 | seen_esc = 2; | |
69 | continue; | |
70 | } else if (seen_esc == 2) { | |
71 | if (ch == 'P') /* F1 */ | |
72 | show_state(); | |
819c67e6 | 73 | #ifdef CONFIG_MAGIC_SYSRQ |
f66279cd JS |
74 | if (ch == 'S') { /* F4 */ |
75 | do { | |
76 | ch = ia64_ssc(0, 0, 0, 0, SSC_GETCHAR); | |
77 | } while (!ch); | |
78 | handle_sysrq(ch); | |
1da177e4 | 79 | } |
f66279cd JS |
80 | #endif |
81 | seen_esc = 0; | |
82 | continue; | |
1da177e4 LT |
83 | } |
84 | seen_esc = 0; | |
1da177e4 | 85 | |
92a19f9c | 86 | if (tty_insert_flip_char(port, ch, TTY_NORMAL) == 0) |
d50f5c5c | 87 | break; |
1da177e4 | 88 | } |
2e124b4a | 89 | tty_flip_buffer_push(port); |
1da177e4 LT |
90 | } |
91 | ||
92 | /* | |
93 | * This is the serial driver's interrupt routine for a single port | |
94 | */ | |
5dcded1b | 95 | static irqreturn_t rs_interrupt_single(int irq, void *dev_id) |
1da177e4 | 96 | { |
916b7656 | 97 | struct serial_state *info = dev_id; |
1da177e4 | 98 | |
2e124b4a JS |
99 | receive_chars(&info->port); |
100 | ||
1da177e4 LT |
101 | return IRQ_HANDLED; |
102 | } | |
103 | ||
104 | /* | |
105 | * ------------------------------------------------------------------- | |
106 | * Here ends the serial interrupt routines. | |
107 | * ------------------------------------------------------------------- | |
108 | */ | |
109 | ||
f34d7a5b | 110 | static int rs_put_char(struct tty_struct *tty, unsigned char ch) |
1da177e4 | 111 | { |
916b7656 | 112 | struct serial_state *info = tty->driver_data; |
1da177e4 LT |
113 | unsigned long flags; |
114 | ||
6e9ebcfa | 115 | if (!info->xmit.buf) |
f34d7a5b | 116 | return 0; |
1da177e4 LT |
117 | |
118 | local_irq_save(flags); | |
119 | if (CIRC_SPACE(info->xmit.head, info->xmit.tail, SERIAL_XMIT_SIZE) == 0) { | |
120 | local_irq_restore(flags); | |
f34d7a5b | 121 | return 0; |
1da177e4 LT |
122 | } |
123 | info->xmit.buf[info->xmit.head] = ch; | |
124 | info->xmit.head = (info->xmit.head + 1) & (SERIAL_XMIT_SIZE-1); | |
125 | local_irq_restore(flags); | |
f34d7a5b | 126 | return 1; |
1da177e4 LT |
127 | } |
128 | ||
5e99d545 JS |
129 | static void transmit_chars(struct tty_struct *tty, struct serial_state *info, |
130 | int *intr_done) | |
1da177e4 LT |
131 | { |
132 | int count; | |
133 | unsigned long flags; | |
134 | ||
1da177e4 LT |
135 | local_irq_save(flags); |
136 | ||
137 | if (info->x_char) { | |
138 | char c = info->x_char; | |
139 | ||
140 | console->write(console, &c, 1); | |
141 | ||
1da177e4 LT |
142 | info->x_char = 0; |
143 | ||
144 | goto out; | |
145 | } | |
146 | ||
ee797069 | 147 | if (info->xmit.head == info->xmit.tail || tty->stopped) { |
1da177e4 LT |
148 | #ifdef SIMSERIAL_DEBUG |
149 | printk("transmit_chars: head=%d, tail=%d, stopped=%d\n", | |
5e99d545 | 150 | info->xmit.head, info->xmit.tail, tty->stopped); |
1da177e4 LT |
151 | #endif |
152 | goto out; | |
153 | } | |
154 | /* | |
155 | * We removed the loop and try to do it in to chunks. We need | |
156 | * 2 operations maximum because it's a ring buffer. | |
157 | * | |
158 | * First from current to tail if possible. | |
159 | * Then from the beginning of the buffer until necessary | |
160 | */ | |
161 | ||
162 | count = min(CIRC_CNT(info->xmit.head, info->xmit.tail, SERIAL_XMIT_SIZE), | |
163 | SERIAL_XMIT_SIZE - info->xmit.tail); | |
164 | console->write(console, info->xmit.buf+info->xmit.tail, count); | |
165 | ||
166 | info->xmit.tail = (info->xmit.tail+count) & (SERIAL_XMIT_SIZE-1); | |
167 | ||
168 | /* | |
169 | * We have more at the beginning of the buffer | |
170 | */ | |
171 | count = CIRC_CNT(info->xmit.head, info->xmit.tail, SERIAL_XMIT_SIZE); | |
172 | if (count) { | |
173 | console->write(console, info->xmit.buf, count); | |
174 | info->xmit.tail += count; | |
175 | } | |
176 | out: | |
177 | local_irq_restore(flags); | |
178 | } | |
179 | ||
180 | static void rs_flush_chars(struct tty_struct *tty) | |
181 | { | |
916b7656 | 182 | struct serial_state *info = tty->driver_data; |
1da177e4 | 183 | |
f66279cd | 184 | if (info->xmit.head == info->xmit.tail || tty->stopped || |
ee797069 | 185 | !info->xmit.buf) |
1da177e4 LT |
186 | return; |
187 | ||
5e99d545 | 188 | transmit_chars(tty, info, NULL); |
1da177e4 LT |
189 | } |
190 | ||
1da177e4 LT |
191 | static int rs_write(struct tty_struct * tty, |
192 | const unsigned char *buf, int count) | |
193 | { | |
916b7656 | 194 | struct serial_state *info = tty->driver_data; |
1da177e4 | 195 | int c, ret = 0; |
1da177e4 LT |
196 | unsigned long flags; |
197 | ||
6e9ebcfa | 198 | if (!info->xmit.buf) |
d88405d4 | 199 | return 0; |
1da177e4 LT |
200 | |
201 | local_irq_save(flags); | |
202 | while (1) { | |
203 | c = CIRC_SPACE_TO_END(info->xmit.head, info->xmit.tail, SERIAL_XMIT_SIZE); | |
204 | if (count < c) | |
205 | c = count; | |
206 | if (c <= 0) { | |
207 | break; | |
208 | } | |
209 | memcpy(info->xmit.buf + info->xmit.head, buf, c); | |
210 | info->xmit.head = ((info->xmit.head + c) & | |
211 | (SERIAL_XMIT_SIZE-1)); | |
212 | buf += c; | |
213 | count -= c; | |
214 | ret += c; | |
215 | } | |
216 | local_irq_restore(flags); | |
217 | /* | |
218 | * Hey, we transmit directly from here in our case | |
219 | */ | |
f66279cd | 220 | if (CIRC_CNT(info->xmit.head, info->xmit.tail, SERIAL_XMIT_SIZE) && |
ee797069 | 221 | !tty->stopped) |
5e99d545 | 222 | transmit_chars(tty, info, NULL); |
f66279cd | 223 | |
1da177e4 LT |
224 | return ret; |
225 | } | |
226 | ||
227 | static int rs_write_room(struct tty_struct *tty) | |
228 | { | |
916b7656 | 229 | struct serial_state *info = tty->driver_data; |
1da177e4 LT |
230 | |
231 | return CIRC_SPACE(info->xmit.head, info->xmit.tail, SERIAL_XMIT_SIZE); | |
232 | } | |
233 | ||
234 | static int rs_chars_in_buffer(struct tty_struct *tty) | |
235 | { | |
916b7656 | 236 | struct serial_state *info = tty->driver_data; |
1da177e4 LT |
237 | |
238 | return CIRC_CNT(info->xmit.head, info->xmit.tail, SERIAL_XMIT_SIZE); | |
239 | } | |
240 | ||
241 | static void rs_flush_buffer(struct tty_struct *tty) | |
242 | { | |
916b7656 | 243 | struct serial_state *info = tty->driver_data; |
1da177e4 LT |
244 | unsigned long flags; |
245 | ||
246 | local_irq_save(flags); | |
247 | info->xmit.head = info->xmit.tail = 0; | |
248 | local_irq_restore(flags); | |
249 | ||
15648f15 | 250 | tty_wakeup(tty); |
1da177e4 LT |
251 | } |
252 | ||
253 | /* | |
254 | * This function is used to send a high-priority XON/XOFF character to | |
255 | * the device | |
256 | */ | |
257 | static void rs_send_xchar(struct tty_struct *tty, char ch) | |
258 | { | |
916b7656 | 259 | struct serial_state *info = tty->driver_data; |
1da177e4 LT |
260 | |
261 | info->x_char = ch; | |
262 | if (ch) { | |
263 | /* | |
264 | * I guess we could call console->write() directly but | |
265 | * let's do that for now. | |
266 | */ | |
5e99d545 | 267 | transmit_chars(tty, info, NULL); |
1da177e4 LT |
268 | } |
269 | } | |
270 | ||
271 | /* | |
272 | * ------------------------------------------------------------ | |
273 | * rs_throttle() | |
274 | * | |
275 | * This routine is called by the upper-layer tty layer to signal that | |
276 | * incoming characters should be throttled. | |
277 | * ------------------------------------------------------------ | |
278 | */ | |
279 | static void rs_throttle(struct tty_struct * tty) | |
280 | { | |
f66279cd JS |
281 | if (I_IXOFF(tty)) |
282 | rs_send_xchar(tty, STOP_CHAR(tty)); | |
1da177e4 LT |
283 | |
284 | printk(KERN_INFO "simrs_throttle called\n"); | |
285 | } | |
286 | ||
287 | static void rs_unthrottle(struct tty_struct * tty) | |
288 | { | |
916b7656 | 289 | struct serial_state *info = tty->driver_data; |
1da177e4 LT |
290 | |
291 | if (I_IXOFF(tty)) { | |
292 | if (info->x_char) | |
293 | info->x_char = 0; | |
294 | else | |
295 | rs_send_xchar(tty, START_CHAR(tty)); | |
296 | } | |
297 | printk(KERN_INFO "simrs_unthrottle called\n"); | |
298 | } | |
299 | ||
10e82f6c | 300 | static int rs_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg) |
1da177e4 LT |
301 | { |
302 | if ((cmd != TIOCGSERIAL) && (cmd != TIOCSSERIAL) && | |
303 | (cmd != TIOCSERCONFIG) && (cmd != TIOCSERGSTRUCT) && | |
0587102c | 304 | (cmd != TIOCMIWAIT)) { |
18900ca6 | 305 | if (tty_io_error(tty)) |
1da177e4 LT |
306 | return -EIO; |
307 | } | |
308 | ||
309 | switch (cmd) { | |
f66279cd JS |
310 | case TIOCGSERIAL: |
311 | case TIOCSSERIAL: | |
312 | case TIOCSERGSTRUCT: | |
313 | case TIOCMIWAIT: | |
314 | return 0; | |
315 | case TIOCSERCONFIG: | |
316 | case TIOCSERGETLSR: /* Get line status register */ | |
317 | return -EINVAL; | |
318 | case TIOCSERGWILD: | |
319 | case TIOCSERSWILD: | |
320 | /* "setserial -W" is called in Debian boot */ | |
321 | printk (KERN_INFO "TIOCSER?WILD ioctl obsolete, ignored.\n"); | |
322 | return 0; | |
323 | } | |
324 | return -ENOIOCTLCMD; | |
1da177e4 LT |
325 | } |
326 | ||
327 | #define RELEVANT_IFLAG(iflag) (iflag & (IGNBRK|BRKINT|IGNPAR|PARMRK|INPCK)) | |
328 | ||
1da177e4 LT |
329 | /* |
330 | * This routine will shutdown a serial port; interrupts are disabled, and | |
331 | * DTR is dropped if the hangup on close termio flag is on. | |
332 | */ | |
458cd31a | 333 | static void shutdown(struct tty_port *port) |
1da177e4 | 334 | { |
458cd31a JS |
335 | struct serial_state *info = container_of(port, struct serial_state, |
336 | port); | |
337 | unsigned long flags; | |
1da177e4 LT |
338 | |
339 | local_irq_save(flags); | |
f66279cd JS |
340 | if (info->irq) |
341 | free_irq(info->irq, info); | |
1da177e4 | 342 | |
f66279cd JS |
343 | if (info->xmit.buf) { |
344 | free_page((unsigned long) info->xmit.buf); | |
345 | info->xmit.buf = NULL; | |
1da177e4 LT |
346 | } |
347 | local_irq_restore(flags); | |
348 | } | |
349 | ||
1da177e4 LT |
350 | static void rs_close(struct tty_struct *tty, struct file * filp) |
351 | { | |
916b7656 | 352 | struct serial_state *info = tty->driver_data; |
37343030 | 353 | |
458cd31a | 354 | tty_port_close(&info->port, tty, filp); |
1da177e4 LT |
355 | } |
356 | ||
1da177e4 LT |
357 | static void rs_hangup(struct tty_struct *tty) |
358 | { | |
916b7656 | 359 | struct serial_state *info = tty->driver_data; |
1da177e4 | 360 | |
1da177e4 | 361 | rs_flush_buffer(tty); |
458cd31a | 362 | tty_port_hangup(&info->port); |
1da177e4 LT |
363 | } |
364 | ||
9aead90a | 365 | static int activate(struct tty_port *port, struct tty_struct *tty) |
1da177e4 | 366 | { |
9aead90a JS |
367 | struct serial_state *state = container_of(port, struct serial_state, |
368 | port); | |
f66279cd JS |
369 | unsigned long flags, page; |
370 | int retval = 0; | |
1da177e4 LT |
371 | |
372 | page = get_zeroed_page(GFP_KERNEL); | |
373 | if (!page) | |
374 | return -ENOMEM; | |
375 | ||
376 | local_irq_save(flags); | |
377 | ||
916b7656 | 378 | if (state->xmit.buf) |
1da177e4 LT |
379 | free_page(page); |
380 | else | |
916b7656 | 381 | state->xmit.buf = (unsigned char *) page; |
1da177e4 | 382 | |
964105b5 | 383 | if (state->irq) { |
2f8c521a | 384 | retval = request_irq(state->irq, rs_interrupt_single, 0, |
916b7656 | 385 | "simserial", state); |
9e12dd5f | 386 | if (retval) |
1da177e4 | 387 | goto errout; |
1da177e4 LT |
388 | } |
389 | ||
916b7656 | 390 | state->xmit.head = state->xmit.tail = 0; |
1da177e4 LT |
391 | errout: |
392 | local_irq_restore(flags); | |
393 | return retval; | |
394 | } | |
395 | ||
396 | ||
397 | /* | |
398 | * This routine is called whenever a serial port is opened. It | |
399 | * enables interrupts for a serial port, linking in its async structure into | |
400 | * the IRQ chain. It also performs the serial-specific | |
401 | * initialization for the tty structure. | |
402 | */ | |
403 | static int rs_open(struct tty_struct *tty, struct file * filp) | |
404 | { | |
916b7656 | 405 | struct serial_state *info = rs_table + tty->index; |
7f32f8dd | 406 | struct tty_port *port = &info->port; |
1da177e4 | 407 | |
916b7656 | 408 | tty->driver_data = info; |
d6c53c0e | 409 | port->low_latency = (port->flags & ASYNC_LOW_LATENCY) ? 1 : 0; |
1da177e4 | 410 | |
1da177e4 LT |
411 | /* |
412 | * figure out which console to use (should be one already) | |
413 | */ | |
414 | console = console_drivers; | |
415 | while (console) { | |
416 | if ((console->flags & CON_ENABLED) && console->write) break; | |
417 | console = console->next; | |
418 | } | |
419 | ||
9aead90a | 420 | return tty_port_open(port, tty, filp); |
1da177e4 LT |
421 | } |
422 | ||
423 | /* | |
424 | * /proc fs routines.... | |
425 | */ | |
426 | ||
bf54215e | 427 | static int rs_proc_show(struct seq_file *m, void *v) |
1da177e4 | 428 | { |
bf54215e AD |
429 | int i; |
430 | ||
6e9ebcfa | 431 | seq_printf(m, "simserinfo:1.0\n"); |
bf54215e | 432 | for (i = 0; i < NR_PORTS; i++) |
98e3a9e6 JS |
433 | seq_printf(m, "%d: uart:16550 port:3F8 irq:%d\n", |
434 | i, rs_table[i].irq); | |
bf54215e | 435 | return 0; |
1da177e4 LT |
436 | } |
437 | ||
bf54215e AD |
438 | static int rs_proc_open(struct inode *inode, struct file *file) |
439 | { | |
440 | return single_open(file, rs_proc_show, NULL); | |
441 | } | |
442 | ||
443 | static const struct file_operations rs_proc_fops = { | |
444 | .owner = THIS_MODULE, | |
445 | .open = rs_proc_open, | |
446 | .read = seq_read, | |
447 | .llseek = seq_lseek, | |
448 | .release = single_release, | |
449 | }; | |
450 | ||
b68e31d0 | 451 | static const struct tty_operations hp_ops = { |
1da177e4 LT |
452 | .open = rs_open, |
453 | .close = rs_close, | |
454 | .write = rs_write, | |
455 | .put_char = rs_put_char, | |
456 | .flush_chars = rs_flush_chars, | |
457 | .write_room = rs_write_room, | |
458 | .chars_in_buffer = rs_chars_in_buffer, | |
459 | .flush_buffer = rs_flush_buffer, | |
460 | .ioctl = rs_ioctl, | |
461 | .throttle = rs_throttle, | |
462 | .unthrottle = rs_unthrottle, | |
463 | .send_xchar = rs_send_xchar, | |
1da177e4 | 464 | .hangup = rs_hangup, |
bf54215e | 465 | .proc_fops = &rs_proc_fops, |
1da177e4 LT |
466 | }; |
467 | ||
37343030 | 468 | static const struct tty_port_operations hp_port_ops = { |
9aead90a | 469 | .activate = activate, |
458cd31a | 470 | .shutdown = shutdown, |
37343030 JS |
471 | }; |
472 | ||
fd2d7a6e | 473 | static int __init simrs_init(void) |
1da177e4 | 474 | { |
fd2d7a6e JS |
475 | struct serial_state *state; |
476 | int retval; | |
1da177e4 LT |
477 | |
478 | if (!ia64_platform_is("hpsim")) | |
479 | return -ENODEV; | |
480 | ||
410235fd | 481 | hp_simserial_driver = alloc_tty_driver(NR_PORTS); |
1da177e4 LT |
482 | if (!hp_simserial_driver) |
483 | return -ENOMEM; | |
484 | ||
6e9ebcfa | 485 | printk(KERN_INFO "SimSerial driver with no serial options enabled\n"); |
1da177e4 LT |
486 | |
487 | /* Initialize the tty_driver structure */ | |
488 | ||
1da177e4 LT |
489 | hp_simserial_driver->driver_name = "simserial"; |
490 | hp_simserial_driver->name = "ttyS"; | |
491 | hp_simserial_driver->major = TTY_MAJOR; | |
492 | hp_simserial_driver->minor_start = 64; | |
493 | hp_simserial_driver->type = TTY_DRIVER_TYPE_SERIAL; | |
494 | hp_simserial_driver->subtype = SERIAL_TYPE_NORMAL; | |
495 | hp_simserial_driver->init_termios = tty_std_termios; | |
496 | hp_simserial_driver->init_termios.c_cflag = | |
497 | B9600 | CS8 | CREAD | HUPCL | CLOCAL; | |
498 | hp_simserial_driver->flags = TTY_DRIVER_REAL_RAW; | |
499 | tty_set_operations(hp_simserial_driver, &hp_ops); | |
500 | ||
fd2d7a6e | 501 | state = rs_table; |
7f32f8dd | 502 | tty_port_init(&state->port); |
37343030 | 503 | state->port.ops = &hp_port_ops; |
7f32f8dd | 504 | state->port.close_delay = 0; /* XXX really 0? */ |
fd2d7a6e JS |
505 | |
506 | retval = hpsim_get_irq(KEYBOARD_INTR); | |
507 | if (retval < 0) { | |
508 | printk(KERN_ERR "%s: out of interrupt vectors!\n", | |
509 | __func__); | |
510 | goto err_free_tty; | |
511 | } | |
1da177e4 | 512 | |
fd2d7a6e | 513 | state->irq = retval; |
1da177e4 | 514 | |
fd2d7a6e | 515 | /* the port is imaginary */ |
98e3a9e6 | 516 | printk(KERN_INFO "ttyS0 at 0x03f8 (irq = %d) is a 16550\n", state->irq); |
1da177e4 | 517 | |
b19e2ca7 | 518 | tty_port_link_device(&state->port, hp_simserial_driver, 0); |
fd2d7a6e JS |
519 | retval = tty_register_driver(hp_simserial_driver); |
520 | if (retval) { | |
521 | printk(KERN_ERR "Couldn't register simserial driver\n"); | |
522 | goto err_free_tty; | |
1da177e4 LT |
523 | } |
524 | ||
1da177e4 | 525 | return 0; |
fd2d7a6e JS |
526 | err_free_tty: |
527 | put_tty_driver(hp_simserial_driver); | |
191c5f10 | 528 | tty_port_destroy(&state->port); |
fd2d7a6e | 529 | return retval; |
1da177e4 LT |
530 | } |
531 | ||
532 | #ifndef MODULE | |
533 | __initcall(simrs_init); | |
534 | #endif |