| sio.c (51088) | sio.c (51654) |
|---|---|
| 1/*- 2 * Copyright (c) 1991 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 16 unchanged lines hidden (view full) --- 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * | 1/*- 2 * Copyright (c) 1991 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 16 unchanged lines hidden (view full) --- 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * |
| 33 * $FreeBSD: head/sys/dev/sio/sio.c 51088 1999-09-08 13:46:54Z peter $ | 33 * $FreeBSD: head/sys/dev/sio/sio.c 51654 1999-09-25 16:21:39Z phk $ |
| 34 * from: @(#)com.c 7.5 (Berkeley) 5/16/91 35 * from: i386/isa sio.c,v 1.234 36 */ 37 38#include "opt_comconsole.h" 39#include "opt_compat.h" 40#include "opt_ddb.h" 41#include "opt_sio.h" --- 260 unchanged lines hidden (view full) --- 302static void siointr __P((void *arg)); 303static int commctl __P((struct com_s *com, int bits, int how)); 304static int comparam __P((struct tty *tp, struct termios *t)); 305static swihand_t siopoll; 306static int sioprobe __P((device_t dev)); 307static void siosettimeout __P((void)); 308static int siosetwater __P((struct com_s *com, speed_t speed)); 309static void comstart __P((struct tty *tp)); | 34 * from: @(#)com.c 7.5 (Berkeley) 5/16/91 35 * from: i386/isa sio.c,v 1.234 36 */ 37 38#include "opt_comconsole.h" 39#include "opt_compat.h" 40#include "opt_ddb.h" 41#include "opt_sio.h" --- 260 unchanged lines hidden (view full) --- 302static void siointr __P((void *arg)); 303static int commctl __P((struct com_s *com, int bits, int how)); 304static int comparam __P((struct tty *tp, struct termios *t)); 305static swihand_t siopoll; 306static int sioprobe __P((device_t dev)); 307static void siosettimeout __P((void)); 308static int siosetwater __P((struct com_s *com, speed_t speed)); 309static void comstart __P((struct tty *tp)); |
| 310static void comstop __P((struct tty *tp, int rw)); |
|
| 310static timeout_t comwakeup; 311static void disc_optim __P((struct tty *tp, struct termios *t, 312 struct com_s *com)); 313 314 315static char driver_name[] = "sio"; 316 317/* table and macro for fast conversion from a unit number to its com struct */ --- 15 unchanged lines hidden (view full) --- 333 sizeof(struct com_s), 334}; 335 336static d_open_t sioopen; 337static d_close_t sioclose; 338static d_read_t sioread; 339static d_write_t siowrite; 340static d_ioctl_t sioioctl; | 311static timeout_t comwakeup; 312static void disc_optim __P((struct tty *tp, struct termios *t, 313 struct com_s *com)); 314 315 316static char driver_name[] = "sio"; 317 318/* table and macro for fast conversion from a unit number to its com struct */ --- 15 unchanged lines hidden (view full) --- 334 sizeof(struct com_s), 335}; 336 337static d_open_t sioopen; 338static d_close_t sioclose; 339static d_read_t sioread; 340static d_write_t siowrite; 341static d_ioctl_t sioioctl; |
| 341static d_stop_t siostop; 342static d_devtotty_t siodevtotty; | |
| 343 344#define CDEV_MAJOR 28 345static struct cdevsw sio_cdevsw = { 346 /* open */ sioopen, 347 /* close */ sioclose, 348 /* read */ sioread, 349 /* write */ siowrite, 350 /* ioctl */ sioioctl, | 342 343#define CDEV_MAJOR 28 344static struct cdevsw sio_cdevsw = { 345 /* open */ sioopen, 346 /* close */ sioclose, 347 /* read */ sioread, 348 /* write */ siowrite, 349 /* ioctl */ sioioctl, |
| 351 /* stop */ siostop, | 350 /* stop */ nostop, |
| 352 /* reset */ noreset, | 351 /* reset */ noreset, |
| 353 /* devtotty */ siodevtotty, 354 /* poll */ ttpoll, | 352 /* devtotty */ nodevtotty, 353 /* poll */ ttypoll, |
| 355 /* mmap */ nommap, 356 /* strategy */ nostrategy, 357 /* name */ driver_name, 358 /* parms */ noparms, 359 /* maj */ CDEV_MAJOR, 360 /* dump */ nodump, 361 /* psize */ nopsize, 362 /* flags */ D_TTY, --- 842 unchanged lines hidden (view full) --- 1205 /* 1206 * The device isn't open, so there are no conflicts. 1207 * Initialize it. Initialization is done twice in many 1208 * cases: to preempt sleeping callin opens if we are 1209 * callout, and to complete a callin open after DCD rises. 1210 */ 1211 tp->t_oproc = comstart; 1212 tp->t_param = comparam; | 354 /* mmap */ nommap, 355 /* strategy */ nostrategy, 356 /* name */ driver_name, 357 /* parms */ noparms, 358 /* maj */ CDEV_MAJOR, 359 /* dump */ nodump, 360 /* psize */ nopsize, 361 /* flags */ D_TTY, --- 842 unchanged lines hidden (view full) --- 1204 /* 1205 * The device isn't open, so there are no conflicts. 1206 * Initialize it. Initialization is done twice in many 1207 * cases: to preempt sleeping callin opens if we are 1208 * callout, and to complete a callin open after DCD rises. 1209 */ 1210 tp->t_oproc = comstart; 1211 tp->t_param = comparam; |
| 1212 tp->t_stop = comstop; |
|
| 1213 tp->t_dev = dev; 1214 tp->t_termios = mynor & CALLOUT_MASK 1215 ? com->it_out : com->it_in; 1216 (void)commctl(com, TIOCM_DTR | TIOCM_RTS, DMSET); 1217 com->poll = com->no_irq; 1218 com->poll_output = com->loses_outints; 1219 ++com->wopeners; 1220 error = comparam(tp, &tp->t_termios); --- 110 unchanged lines hidden (view full) --- 1331 mynor = minor(dev); 1332 if (mynor & CONTROL_MASK) 1333 return (0); 1334 com = com_addr(MINOR_TO_UNIT(mynor)); 1335 tp = com->tp; 1336 s = spltty(); 1337 (*linesw[tp->t_line].l_close)(tp, flag); 1338 disc_optim(tp, &tp->t_termios, com); | 1213 tp->t_dev = dev; 1214 tp->t_termios = mynor & CALLOUT_MASK 1215 ? com->it_out : com->it_in; 1216 (void)commctl(com, TIOCM_DTR | TIOCM_RTS, DMSET); 1217 com->poll = com->no_irq; 1218 com->poll_output = com->loses_outints; 1219 ++com->wopeners; 1220 error = comparam(tp, &tp->t_termios); --- 110 unchanged lines hidden (view full) --- 1331 mynor = minor(dev); 1332 if (mynor & CONTROL_MASK) 1333 return (0); 1334 com = com_addr(MINOR_TO_UNIT(mynor)); 1335 tp = com->tp; 1336 s = spltty(); 1337 (*linesw[tp->t_line].l_close)(tp, flag); 1338 disc_optim(tp, &tp->t_termios, com); |
| 1339 siostop(tp, FREAD | FWRITE); | 1339 comstop(tp, FREAD | FWRITE); |
| 1340 comhardclose(com); 1341 ttyclose(tp); 1342 siosettimeout(); 1343 splx(s); 1344 if (com->gone) { 1345 printf("sio%d: gone\n", com->unit); 1346 s = spltty(); 1347 if (com->ibuf != NULL) --- 1022 unchanged lines hidden (view full) --- 2370 if (com->state >= (CS_BUSY | CS_TTGO)) 2371 siointr1(com); /* fake interrupt to start output */ 2372 enable_intr(); 2373 ttwwakeup(tp); 2374 splx(s); 2375} 2376 2377static void | 1340 comhardclose(com); 1341 ttyclose(tp); 1342 siosettimeout(); 1343 splx(s); 1344 if (com->gone) { 1345 printf("sio%d: gone\n", com->unit); 1346 s = spltty(); 1347 if (com->ibuf != NULL) --- 1022 unchanged lines hidden (view full) --- 2370 if (com->state >= (CS_BUSY | CS_TTGO)) 2371 siointr1(com); /* fake interrupt to start output */ 2372 enable_intr(); 2373 ttwwakeup(tp); 2374 splx(s); 2375} 2376 2377static void |
| 2378siostop(tp, rw) | 2378comstop(tp, rw) |
| 2379 struct tty *tp; 2380 int rw; 2381{ 2382 struct com_s *com; 2383 2384 com = com_addr(DEV_TO_UNIT(tp->t_dev)); 2385 if (com->gone) 2386 return; --- 23 unchanged lines hidden (view full) --- 2410 FIFO_RCV_RST | com->fifo_image); 2411 com_events -= (com->iptr - com->ibuf); 2412 com->iptr = com->ibuf; 2413 } 2414 enable_intr(); 2415 comstart(tp); 2416} 2417 | 2379 struct tty *tp; 2380 int rw; 2381{ 2382 struct com_s *com; 2383 2384 com = com_addr(DEV_TO_UNIT(tp->t_dev)); 2385 if (com->gone) 2386 return; --- 23 unchanged lines hidden (view full) --- 2410 FIFO_RCV_RST | com->fifo_image); 2411 com_events -= (com->iptr - com->ibuf); 2412 com->iptr = com->ibuf; 2413 } 2414 enable_intr(); 2415 comstart(tp); 2416} 2417 |
| 2418static struct tty * 2419siodevtotty(dev) 2420 dev_t dev; 2421{ 2422 int mynor; 2423 int unit; 2424 2425 mynor = minor(dev); 2426 if (mynor & CONTROL_MASK) 2427 return (NULL); 2428 unit = MINOR_TO_UNIT(mynor); 2429 if ((u_int) unit >= NSIOTOT) 2430 return (NULL); 2431 return (dev->si_tty); 2432} 2433 | |
| 2434static int 2435commctl(com, bits, how) 2436 struct com_s *com; 2437 int bits; 2438 int how; 2439{ 2440 int mcr; 2441 int msr; --- 619 unchanged lines hidden --- | 2418static int 2419commctl(com, bits, how) 2420 struct com_s *com; 2421 int bits; 2422 int how; 2423{ 2424 int mcr; 2425 int msr; --- 619 unchanged lines hidden --- |