1139749Simp/*- 2123120Simp * Cronyx-Sigma adapter driver for FreeBSD. 3123120Simp * Supports PPP/HDLC and Cisco/HDLC protocol in synchronous mode, 4256219Smav * and asynchronous channels with full modem control. 5123120Simp * Keepalive protocol implemented in both Cisco and PPP modes. 6123120Simp * 7123120Simp * Copyright (C) 1994-2002 Cronyx Engineering. 8123120Simp * Author: Serge Vakulenko, <vak@cronyx.ru> 9123120Simp * 10125813Srik * Copyright (C) 1999-2004 Cronyx Engineering. 11123120Simp * Rewritten on DDK, ported to NETGRAPH, rewritten for FreeBSD 3.x-5.x by 12123120Simp * Kurakin Roman, <rik@cronyx.ru> 13123120Simp * 14123120Simp * This software is distributed with NO WARRANTIES, not even the implied 15123120Simp * warranties for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 16123120Simp * 17123120Simp * Authors grant any other persons or organisations a permission to use, 18123120Simp * modify and redistribute this software in source and binary forms, 19123120Simp * as long as this message is kept with the software, all derivative 20123120Simp * works or modified versions. 21123120Simp * 22130985Srik * Cronyx Id: if_cx.c,v 1.1.2.34 2004/06/23 17:09:13 rik Exp $ 23123120Simp */ 24130985Srik 25123120Simp#include <sys/cdefs.h> 26123120Simp__FBSDID("$FreeBSD$"); 27123120Simp 28123120Simp#include <sys/param.h> 29123120Simp 30123120Simp#include <sys/systm.h> 31123120Simp#include <sys/kernel.h> 32129879Sphk#include <sys/module.h> 33164033Srwatson#include <sys/priv.h> 34123120Simp#include <sys/proc.h> 35123120Simp#include <sys/mbuf.h> 36123120Simp#include <sys/sockio.h> 37123120Simp#include <sys/malloc.h> 38123120Simp#include <sys/socket.h> 39138823Srik#include <sys/sysctl.h> 40123120Simp#include <sys/conf.h> 41123120Simp#include <sys/errno.h> 42136480Sphk#include <sys/serial.h> 43123120Simp#include <sys/tty.h> 44130971Srik#include <sys/bus.h> 45130971Srik#include <machine/bus.h> 46130971Srik#include <sys/rman.h> 47130971Srik#include <isa/isavar.h> 48123120Simp#include <sys/fcntl.h> 49123120Simp#include <sys/interrupt.h> 50123120Simp#include <vm/vm.h> 51123120Simp#include <vm/pmap.h> 52123120Simp#include <net/if.h> 53123120Simp#include <machine/cpufunc.h> 54123120Simp#include <machine/cserial.h> 55130971Srik#include <machine/resource.h> 56130971Srik#include <dev/cx/machdep.h> 57130971Srik#include <dev/cx/cxddk.h> 58130971Srik#include <dev/cx/cronyxfw.h> 59123120Simp#include "opt_ng_cronyx.h" 60123120Simp#ifdef NETGRAPH_CRONYX 61123120Simp# include "opt_netgraph.h" 62123120Simp# include <netgraph/ng_message.h> 63123120Simp# include <netgraph/netgraph.h> 64130971Srik# include <dev/cx/ng_cx.h> 65123120Simp#else 66123120Simp# include <net/if_types.h> 67123120Simp# include <net/if_sppp.h> 68123120Simp# define PP_CISCO IFF_LINK2 69123120Simp# include <net/bpf.h> 70123120Simp#endif 71123120Simp 72136472Sphk#define NCX 1 73130095Sphk 74129029Srik/* If we don't have Cronyx's sppp version, we don't have fr support via sppp */ 75129029Srik#ifndef PP_FR 76129029Srik#define PP_FR 0 77129029Srik#endif 78129029Srik 79123120Simp#define CX_DEBUG(d,s) ({if (d->chan->debug) {\ 80123120Simp printf ("%s: ", d->name); printf s;}}) 81123120Simp#define CX_DEBUG2(d,s) ({if (d->chan->debug>1) {\ 82123120Simp printf ("%s: ", d->name); printf s;}}) 83123120Simp 84138823Srik#define CX_LOCK_NAME "cxX" 85138823Srik 86188768Srwatson#define CX_LOCK(_bd) mtx_lock (&(_bd)->cx_mtx) 87188768Srwatson#define CX_UNLOCK(_bd) mtx_unlock (&(_bd)->cx_mtx) 88188768Srwatson#define CX_LOCK_ASSERT(_bd) mtx_assert (&(_bd)->cx_mtx, MA_OWNED) 89138823Srik 90123120Simptypedef struct _async_q { 91123120Simp int beg; 92123120Simp int end; 93123120Simp #define BF_SZ 14400 94123120Simp int buf[BF_SZ+1]; 95123120Simp} async_q; 96123120Simp 97123120Simp#define AQ_GSZ(q) ((BF_SZ + (q)->end - (q)->beg)%BF_SZ) 98123120Simp#define AQ_PUSH(q,c) {*((q)->buf + (q)->end) = c;\ 99123120Simp (q)->end = ((q)->end + 1)%BF_SZ;} 100123120Simp#define AQ_POP(q,c) {c = *((q)->buf + (q)->beg);\ 101123120Simp (q)->beg = ((q)->beg + 1)%BF_SZ;} 102123120Simp 103123120Simpstatic void cx_identify __P((driver_t *, device_t)); 104123120Simpstatic int cx_probe __P((device_t)); 105123120Simpstatic int cx_attach __P((device_t)); 106123120Simpstatic int cx_detach __P((device_t)); 107136480Sphkstatic t_open_t cx_topen; 108136480Sphkstatic t_modem_t cx_tmodem; 109136480Sphkstatic t_close_t cx_tclose; 110123120Simp 111123120Simpstatic device_method_t cx_isa_methods [] = { 112123120Simp DEVMETHOD(device_identify, cx_identify), 113123120Simp DEVMETHOD(device_probe, cx_probe), 114123120Simp DEVMETHOD(device_attach, cx_attach), 115123120Simp DEVMETHOD(device_detach, cx_detach), 116123120Simp {0, 0} 117123120Simp}; 118123120Simp 119130985Sriktypedef struct _cx_dma_mem_t { 120130985Srik unsigned long phys; 121130985Srik void *virt; 122130985Srik size_t size; 123130985Srik bus_dma_tag_t dmat; 124130985Srik bus_dmamap_t mapp; 125130985Srik} cx_dma_mem_t; 126123120Simp 127123120Simptypedef struct _drv_t { 128123120Simp char name [8]; 129123120Simp cx_chan_t *chan; 130123120Simp cx_board_t *board; 131130985Srik cx_dma_mem_t dmamem; 132130240Srik struct tty *tty; 133138823Srik struct callout dcd_timeout_handle; 134123120Simp unsigned callout; 135123120Simp unsigned lock; 136123120Simp int open_dev; 137123120Simp int cd; 138123120Simp int running; 139123120Simp#ifdef NETGRAPH 140193813Simp char nodename [NG_NODESIZ]; 141123120Simp hook_p hook; 142123120Simp hook_p debug_hook; 143123120Simp node_p node; 144123120Simp struct ifqueue lo_queue; 145123120Simp struct ifqueue hi_queue; 146123120Simp#else 147138823Srik struct ifqueue queue; 148147256Sbrooks struct ifnet *ifp; 149123120Simp#endif 150199407Sjhb short timeout; 151199407Sjhb struct callout timeout_handle; 152138823Srik struct cdev *devt; 153138823Srik async_q aqueue; 154130971Srik#define CX_READ 1 155130971Srik#define CX_WRITE 2 156123120Simp int intr_action; 157123120Simp short atimeout; 158123120Simp} drv_t; 159123120Simp 160130985Sriktypedef struct _bdrv_t { 161130985Srik cx_board_t *board; 162130985Srik struct resource *base_res; 163130985Srik struct resource *drq_res; 164130985Srik struct resource *irq_res; 165130985Srik int base_rid; 166130985Srik int drq_rid; 167130985Srik int irq_rid; 168130985Srik void *intrhand; 169130985Srik drv_t channel [NCHAN]; 170138823Srik struct mtx cx_mtx; 171130985Srik} bdrv_t; 172130985Srik 173130985Srikstatic driver_t cx_isa_driver = { 174130985Srik "cx", 175130985Srik cx_isa_methods, 176130985Srik sizeof (bdrv_t), 177130985Srik}; 178130985Srik 179130985Srikstatic devclass_t cx_devclass; 180130985Srik 181123120Simpextern long csigma_fw_len; 182123120Simpextern const char *csigma_fw_version; 183123120Simpextern const char *csigma_fw_date; 184123120Simpextern const char *csigma_fw_copyright; 185123120Simpextern const cr_dat_tst_t csigma_fw_tvec[]; 186123120Simpextern const u_char csigma_fw_data[]; 187123120Simpstatic void cx_oproc (struct tty *tp); 188123120Simpstatic int cx_param (struct tty *tp, struct termios *t); 189123120Simpstatic void cx_stop (struct tty *tp, int flag); 190123120Simpstatic void cx_receive (cx_chan_t *c, char *data, int len); 191123120Simpstatic void cx_transmit (cx_chan_t *c, void *attachment, int len); 192123120Simpstatic void cx_error (cx_chan_t *c, int data); 193123120Simpstatic void cx_modem (cx_chan_t *c); 194123120Simpstatic void cx_up (drv_t *d); 195123120Simpstatic void cx_start (drv_t *d); 196123120Simpstatic void cx_softintr (void *); 197123120Simpstatic void *cx_fast_ih; 198123120Simpstatic void cx_down (drv_t *d); 199123120Simpstatic void cx_watchdog (drv_t *d); 200199407Sjhbstatic void cx_watchdog_timer (void *arg); 201123120Simpstatic void cx_carrier (void *arg); 202123120Simp 203123120Simp#ifdef NETGRAPH 204123120Simpextern struct ng_type typestruct; 205123120Simp#else 206123120Simpstatic void cx_ifstart (struct ifnet *ifp); 207123120Simpstatic void cx_tlf (struct sppp *sp); 208123120Simpstatic void cx_tls (struct sppp *sp); 209123120Simpstatic int cx_sioctl (struct ifnet *ifp, u_long cmd, caddr_t data); 210123120Simpstatic void cx_initialize (void *softc); 211123120Simp#endif 212123120Simp 213123120Simpstatic cx_board_t *adapter [NCX]; 214123120Simpstatic drv_t *channel [NCX*NCHAN]; 215138823Srikstatic struct callout led_timo [NCX]; 216138823Srikstatic struct callout timeout_handle; 217123120Simp 218150622Srikstatic int cx_open (struct cdev *dev, int flag, int mode, struct thread *td); 219150622Srikstatic int cx_close (struct cdev *dev, int flag, int mode, struct thread *td); 220150622Srikstatic int cx_ioctl (struct cdev *dev, u_long cmd, caddr_t data, int flag, struct thread *td); 221149847Sobrienstatic struct cdevsw cx_cdevsw = { 222149847Sobrien .d_version = D_VERSION, 223149847Sobrien .d_open = cx_open, 224149847Sobrien .d_close = cx_close, 225149847Sobrien .d_ioctl = cx_ioctl, 226149847Sobrien .d_name = "cx", 227188768Srwatson .d_flags = D_TTY, 228149847Sobrien}; 229149847Sobrien 230150622Srikstatic int MY_SOFT_INTR; 231150622Srik 232123120Simp/* 233123120Simp * Print the mbuf chain, for debug purposes only. 234123120Simp */ 235123120Simpstatic void printmbuf (struct mbuf *m) 236123120Simp{ 237123120Simp printf ("mbuf:"); 238123120Simp for (; m; m=m->m_next) { 239123120Simp if (m->m_flags & M_PKTHDR) 240123120Simp printf (" HDR %d:", m->m_pkthdr.len); 241123120Simp if (m->m_flags & M_EXT) 242123120Simp printf (" EXT:"); 243123120Simp printf (" %d", m->m_len); 244123120Simp } 245123120Simp printf ("\n"); 246123120Simp} 247123120Simp 248123120Simp/* 249123120Simp * Make an mbuf from data. 250123120Simp */ 251123120Simpstatic struct mbuf *makembuf (void *buf, u_int len) 252123120Simp{ 253123120Simp struct mbuf *m, *o, *p; 254123120Simp 255248078Smarius MGETHDR (m, M_NOWAIT, MT_DATA); 256123120Simp 257123120Simp if (! m) 258123120Simp return 0; 259123120Simp 260123120Simp if (len >= MINCLSIZE) 261248078Smarius MCLGET (m, M_NOWAIT); 262123120Simp 263123120Simp m->m_pkthdr.len = len; 264123120Simp m->m_len = 0; 265123120Simp 266123120Simp p = m; 267123120Simp while (len) { 268123120Simp u_int n = M_TRAILINGSPACE (p); 269123120Simp if (n > len) 270123120Simp n = len; 271123120Simp if (! n) { 272123120Simp /* Allocate new mbuf. */ 273123120Simp o = p; 274248078Smarius MGET (p, M_NOWAIT, MT_DATA); 275123120Simp if (! p) { 276123120Simp m_freem (m); 277123120Simp return 0; 278123120Simp } 279123120Simp if (len >= MINCLSIZE) 280248078Smarius MCLGET (p, M_NOWAIT); 281123120Simp p->m_len = 0; 282123120Simp o->m_next = p; 283123120Simp 284123120Simp n = M_TRAILINGSPACE (p); 285123120Simp if (n > len) 286123120Simp n = len; 287123120Simp } 288123120Simp bcopy (buf, mtod (p, caddr_t) + p->m_len, n); 289123120Simp 290123120Simp p->m_len += n; 291123120Simp buf = n + (char*) buf; 292123120Simp len -= n; 293123120Simp } 294123120Simp return m; 295123120Simp} 296123120Simp 297123120Simp/* 298123120Simp * Recover after lost transmit interrupts. 299123120Simp */ 300123120Simpstatic void cx_timeout (void *arg) 301123120Simp{ 302123120Simp drv_t *d; 303138823Srik int s, i, k; 304123120Simp 305138823Srik for (i = 0; i < NCX; i++) { 306138823Srik if (adapter[i] == NULL) 307123120Simp continue; 308138823Srik for (k = 0; k < NCHAN; ++k) { 309138823Srik d = channel[i * NCHAN + k]; 310138823Srik if (! d) 311138823Srik continue; 312138823Srik s = splhigh (); 313138823Srik CX_LOCK ((bdrv_t *)d->board->sys); 314138823Srik if (d->atimeout == 1 && d->tty && d->tty->t_state & TS_BUSY) { 315138823Srik d->tty->t_state &= ~TS_BUSY; 316138823Srik if (d->tty->t_dev) { 317138823Srik d->intr_action |= CX_WRITE; 318138823Srik MY_SOFT_INTR = 1; 319138823Srik swi_sched (cx_fast_ih, 0); 320138823Srik } 321138823Srik CX_DEBUG (d, ("cx_timeout\n")); 322123120Simp } 323138823Srik if (d->atimeout) 324138823Srik d->atimeout--; 325138823Srik CX_UNLOCK ((bdrv_t *)d->board->sys); 326138823Srik splx (s); 327123120Simp } 328123120Simp } 329138823Srik callout_reset (&timeout_handle, hz*5, cx_timeout, 0); 330123120Simp} 331123120Simp 332123120Simpstatic void cx_led_off (void *arg) 333123120Simp{ 334123120Simp cx_board_t *b = arg; 335138823Srik bdrv_t *bd = b->sys; 336138823Srik int s; 337123120Simp 338138823Srik s = splhigh (); 339138823Srik CX_LOCK (bd); 340123120Simp cx_led (b, 0); 341138823Srik CX_UNLOCK (bd); 342123120Simp splx (s); 343123120Simp} 344123120Simp 345123120Simp/* 346172568Skevlo * Activate interrupt handler from DDK. 347123120Simp */ 348123120Simpstatic void cx_intr (void *arg) 349123120Simp{ 350123120Simp bdrv_t *bd = arg; 351123120Simp cx_board_t *b = bd->board; 352138823Srik#ifndef NETGRAPH 353138823Srik int i; 354138823Srik#endif 355123120Simp int s = splhigh (); 356123120Simp 357138823Srik CX_LOCK (bd); 358123120Simp /* Turn LED on. */ 359123120Simp cx_led (b, 1); 360123120Simp 361123120Simp cx_int_handler (b); 362123120Simp 363123120Simp /* Turn LED off 50 msec later. */ 364138823Srik callout_reset (&led_timo[b->num], hz/20, cx_led_off, b); 365138823Srik CX_UNLOCK (bd); 366123120Simp splx (s); 367138823Srik 368138823Srik#ifndef NETGRAPH 369138823Srik /* Pass packets in a lock-free state */ 370138823Srik for (i = 0; i < NCHAN && b->chan[i].type; i++) { 371138823Srik drv_t *d = b->chan[i].sys; 372138823Srik struct mbuf *m; 373147858Srik if (!d || !d->running) 374147858Srik continue; 375138823Srik while (_IF_QLEN(&d->queue)) { 376138823Srik IF_DEQUEUE (&d->queue,m); 377138823Srik if (!m) 378138823Srik continue; 379147256Sbrooks sppp_input (d->ifp, m); 380138823Srik } 381138823Srik } 382138823Srik#endif 383123120Simp} 384123120Simp 385123120Simpstatic int probe_irq (cx_board_t *b, int irq) 386123120Simp{ 387123120Simp int mask, busy, cnt; 388123120Simp 389123120Simp /* Clear pending irq, if any. */ 390123120Simp cx_probe_irq (b, -irq); 391123120Simp DELAY (100); 392123120Simp for (cnt=0; cnt<5; ++cnt) { 393123120Simp /* Get the mask of pending irqs, assuming they are busy. 394123120Simp * Activate the adapter on given irq. */ 395123120Simp busy = cx_probe_irq (b, irq); 396123120Simp DELAY (100); 397123120Simp 398123120Simp /* Get the mask of active irqs. 399123120Simp * Deactivate our irq. */ 400123120Simp mask = cx_probe_irq (b, -irq); 401123120Simp DELAY (100); 402123120Simp if ((mask & ~busy) == 1 << irq) { 403123120Simp cx_probe_irq (b, 0); 404123120Simp /* printf ("cx%d: irq %d ok, mask=0x%04x, busy=0x%04x\n", 405123120Simp b->num, irq, mask, busy); */ 406123120Simp return 1; 407123120Simp } 408123120Simp } 409123120Simp /* printf ("cx%d: irq %d not functional, mask=0x%04x, busy=0x%04x\n", 410123120Simp b->num, irq, mask, busy); */ 411123120Simp cx_probe_irq (b, 0); 412123120Simp return 0; 413123120Simp} 414123120Simp 415123120Simpstatic short porttab [] = { 416123120Simp 0x200, 0x220, 0x240, 0x260, 0x280, 0x2a0, 0x2c0, 0x2e0, 417123120Simp 0x300, 0x320, 0x340, 0x360, 0x380, 0x3a0, 0x3c0, 0x3e0, 0 418123120Simp}; 419123120Simpstatic char dmatab [] = { 7, 6, 5, 0 }; 420123120Simpstatic char irqtab [] = { 5, 10, 11, 7, 3, 15, 12, 0 }; 421123120Simp 422123120Simpstatic int cx_is_free_res (device_t dev, int rid, int type, u_long start, 423123120Simp u_long end, u_long count) 424123120Simp{ 425123120Simp struct resource *res; 426123120Simp 427123120Simp if (!(res = bus_alloc_resource (dev, type, &rid, start, end, count, 428123120Simp RF_ALLOCATED))) 429123120Simp return 0; 430123120Simp 431123120Simp bus_release_resource (dev, type, rid, res); 432123120Simp 433123120Simp return 1; 434123120Simp} 435123120Simp 436123120Simpstatic void cx_identify (driver_t *driver, device_t dev) 437123120Simp{ 438123120Simp u_long iobase, rescount; 439123120Simp int devcount; 440123120Simp device_t *devices; 441123120Simp device_t child; 442123120Simp devclass_t my_devclass; 443123120Simp int i, k; 444123120Simp 445123120Simp if ((my_devclass = devclass_find ("cx")) == NULL) 446123120Simp return; 447123120Simp 448123120Simp devclass_get_devices (my_devclass, &devices, &devcount); 449123120Simp 450123120Simp if (devcount == 0) { 451123120Simp /* We should find all devices by our self. We could alter other 452123120Simp * devices, but we don't have a choise 453123120Simp */ 454123120Simp for (i = 0; (iobase = porttab [i]) != 0; i++) { 455133647Srik if (!cx_is_free_res (dev, 0, SYS_RES_IOPORT, 456123120Simp iobase, iobase + NPORT, NPORT)) 457123120Simp continue; 458123120Simp if (cx_probe_board (iobase, -1, -1) == 0) 459123120Simp continue; 460123120Simp 461123120Simp devcount++; 462123120Simp 463123120Simp child = BUS_ADD_CHILD (dev, ISA_ORDER_SPECULATIVE, "cx", 464123120Simp -1); 465123120Simp 466123120Simp if (child == NULL) 467123120Simp return; 468123120Simp 469123120Simp device_set_desc_copy (child, "Cronyx Sigma"); 470123120Simp device_set_driver (child, driver); 471123120Simp bus_set_resource (child, SYS_RES_IOPORT, 0, 472123120Simp iobase, NPORT); 473123120Simp 474123120Simp if (devcount >= NCX) 475123120Simp break; 476123120Simp } 477123120Simp } else { 478123120Simp static short porttab [] = { 479123120Simp 0x200, 0x220, 0x240, 0x260, 0x280, 0x2a0, 0x2c0, 0x2e0, 480123120Simp 0x300, 0x320, 0x340, 0x360, 0x380, 0x3a0, 0x3c0, 0x3e0, 0 481123120Simp }; 482123120Simp /* Lets check user choise. 483123120Simp */ 484123120Simp for (k = 0; k < devcount; k++) { 485123120Simp if (bus_get_resource (devices[k], SYS_RES_IOPORT, 0, 486123120Simp &iobase, &rescount) != 0) 487123120Simp continue; 488123120Simp 489123120Simp for (i = 0; porttab [i] != 0; i++) { 490123120Simp if (porttab [i] != iobase) 491123120Simp continue; 492133647Srik if (!cx_is_free_res (devices[k], 0, SYS_RES_IOPORT, 493123120Simp iobase, iobase + NPORT, NPORT)) 494123120Simp continue; 495123120Simp if (cx_probe_board (iobase, -1, -1) == 0) 496123120Simp continue; 497123120Simp porttab [i] = -1; 498123120Simp device_set_desc_copy (devices[k], "Cronyx Sigma"); 499123120Simp break; 500123120Simp } 501123120Simp 502123120Simp if (porttab [i] == 0) { 503123120Simp device_delete_child ( 504123120Simp device_get_parent (devices[k]), 505123120Simp devices [k]); 506123120Simp devices[k] = 0; 507123120Simp continue; 508123120Simp } 509123120Simp } 510123120Simp for (k = 0; k < devcount; k++) { 511123120Simp if (devices[k] == 0) 512123120Simp continue; 513123120Simp if (bus_get_resource (devices[k], SYS_RES_IOPORT, 0, 514123120Simp &iobase, &rescount) == 0) 515123120Simp continue; 516123120Simp for (i = 0; (iobase = porttab [i]) != 0; i++) { 517123120Simp if (porttab [i] == -1) { 518123120Simp continue; 519123120Simp } 520133647Srik if (!cx_is_free_res (devices[k], 0, SYS_RES_IOPORT, 521123120Simp iobase, iobase + NPORT, NPORT)) 522123120Simp continue; 523123120Simp if (cx_probe_board (iobase, -1, -1) == 0) 524123120Simp continue; 525123120Simp 526123120Simp bus_set_resource (devices[k], SYS_RES_IOPORT, 0, 527123120Simp iobase, NPORT); 528123120Simp porttab [i] = -1; 529123120Simp device_set_desc_copy (devices[k], "Cronyx Sigma"); 530123120Simp break; 531123120Simp } 532123120Simp if (porttab [i] == 0) { 533123120Simp device_delete_child ( 534123120Simp device_get_parent (devices[k]), 535123120Simp devices [k]); 536123120Simp } 537123120Simp } 538123120Simp free (devices, M_TEMP); 539123120Simp } 540123120Simp 541123120Simp return; 542123120Simp} 543123120Simp 544123120Simpstatic int cx_probe (device_t dev) 545123120Simp{ 546123120Simp int unit = device_get_unit (dev); 547123120Simp int i; 548123120Simp u_long iobase, rescount; 549123120Simp 550123120Simp if (!device_get_desc (dev) || 551123120Simp strcmp (device_get_desc (dev), "Cronyx Sigma")) 552123120Simp return ENXIO; 553123120Simp 554123120Simp if (bus_get_resource (dev, SYS_RES_IOPORT, 0, &iobase, &rescount) != 0) { 555123120Simp printf ("cx%d: Couldn't get IOPORT\n", unit); 556123120Simp return ENXIO; 557123120Simp } 558123120Simp 559133647Srik if (!cx_is_free_res (dev, 0, SYS_RES_IOPORT, 560123120Simp iobase, iobase + NPORT, NPORT)) { 561123120Simp printf ("cx%d: Resource IOPORT isn't free %lx\n", unit, iobase); 562123120Simp return ENXIO; 563123120Simp } 564123120Simp 565123120Simp for (i = 0; porttab [i] != 0; i++) { 566123120Simp if (porttab [i] == iobase) { 567123120Simp porttab [i] = -1; 568123120Simp break; 569123120Simp } 570123120Simp } 571123120Simp 572123120Simp if (porttab [i] == 0) { 573123120Simp return ENXIO; 574123120Simp } 575123120Simp 576123120Simp if (!cx_probe_board (iobase, -1, -1)) { 577123120Simp printf ("cx%d: probing for Sigma at %lx faild\n", unit, iobase); 578123120Simp return ENXIO; 579123120Simp } 580123120Simp 581123120Simp return 0; 582123120Simp} 583123120Simp 584130985Srikstatic void 585130985Srikcx_bus_dmamap_addr (void *arg, bus_dma_segment_t *segs, int nseg, int error) 586130985Srik{ 587130985Srik unsigned long *addr; 588130985Srik 589130985Srik if (error) 590130985Srik return; 591130985Srik 592130985Srik KASSERT(nseg == 1, ("too many DMA segments, %d should be 1", nseg)); 593130985Srik addr = arg; 594130985Srik *addr = segs->ds_addr; 595130985Srik} 596130985Srik 597130985Srikstatic int 598130985Srikcx_bus_dma_mem_alloc (int bnum, int cnum, cx_dma_mem_t *dmem) 599130985Srik{ 600130985Srik int error; 601130985Srik 602130985Srik error = bus_dma_tag_create (NULL, 16, 0, BUS_SPACE_MAXADDR_24BIT, 603130985Srik BUS_SPACE_MAXADDR, NULL, NULL, dmem->size, 1, 604130985Srik dmem->size, 0, NULL, NULL, &dmem->dmat); 605130985Srik if (error) { 606130985Srik if (cnum >= 0) printf ("cx%d-%d: ", bnum, cnum); 607130985Srik else printf ("cx%d: ", bnum); 608130985Srik printf ("couldn't allocate tag for dma memory\n"); 609130985Srik return 0; 610130985Srik } 611130985Srik error = bus_dmamem_alloc (dmem->dmat, (void **)&dmem->virt, 612130985Srik BUS_DMA_NOWAIT | BUS_DMA_ZERO, &dmem->mapp); 613130985Srik if (error) { 614130985Srik if (cnum >= 0) printf ("cx%d-%d: ", bnum, cnum); 615130985Srik else printf ("cx%d: ", bnum); 616130985Srik printf ("couldn't allocate mem for dma memory\n"); 617130985Srik bus_dma_tag_destroy (dmem->dmat); 618130985Srik return 0; 619130985Srik } 620130985Srik error = bus_dmamap_load (dmem->dmat, dmem->mapp, dmem->virt, 621130985Srik dmem->size, cx_bus_dmamap_addr, &dmem->phys, 0); 622130985Srik if (error) { 623130985Srik if (cnum >= 0) printf ("cx%d-%d: ", bnum, cnum); 624130985Srik else printf ("cx%d: ", bnum); 625130985Srik printf ("couldn't load mem map for dma memory\n"); 626130985Srik bus_dmamem_free (dmem->dmat, dmem->virt, dmem->mapp); 627130985Srik bus_dma_tag_destroy (dmem->dmat); 628130985Srik return 0; 629130985Srik } 630130985Srik return 1; 631130985Srik} 632130985Srik 633130985Srikstatic void 634130985Srikcx_bus_dma_mem_free (cx_dma_mem_t *dmem) 635130985Srik{ 636130985Srik bus_dmamap_unload (dmem->dmat, dmem->mapp); 637130985Srik bus_dmamem_free (dmem->dmat, dmem->virt, dmem->mapp); 638130985Srik bus_dma_tag_destroy (dmem->dmat); 639130985Srik} 640130985Srik 641123120Simp/* 642123120Simp * The adapter is present, initialize the driver structures. 643123120Simp */ 644123120Simpstatic int cx_attach (device_t dev) 645123120Simp{ 646123120Simp bdrv_t *bd = device_get_softc (dev); 647123120Simp u_long iobase, drq, irq, rescount; 648123120Simp int unit = device_get_unit (dev); 649138823Srik char *cx_ln = CX_LOCK_NAME; 650123120Simp cx_board_t *b; 651123120Simp cx_chan_t *c; 652123120Simp drv_t *d; 653130971Srik int i; 654130971Srik int s; 655123120Simp 656123120Simp KASSERT ((bd != NULL), ("cx%d: NULL device softc\n", unit)); 657123120Simp 658123120Simp bus_get_resource (dev, SYS_RES_IOPORT, 0, &iobase, &rescount); 659123120Simp bd->base_rid = 0; 660123120Simp bd->base_res = bus_alloc_resource (dev, SYS_RES_IOPORT, &bd->base_rid, 661123120Simp iobase, iobase + NPORT, NPORT, RF_ACTIVE); 662123120Simp if (! bd->base_res) { 663123120Simp printf ("cx%d: cannot allocate base address\n", unit); 664123120Simp return ENXIO; 665123120Simp } 666123120Simp 667123120Simp if (bus_get_resource (dev, SYS_RES_DRQ, 0, &drq, &rescount) != 0) { 668123120Simp for (i = 0; (drq = dmatab [i]) != 0; i++) { 669133647Srik if (!cx_is_free_res (dev, 0, SYS_RES_DRQ, 670123120Simp drq, drq + 1, 1)) 671123120Simp continue; 672123120Simp bus_set_resource (dev, SYS_RES_DRQ, 0, drq, 1); 673123120Simp break; 674123120Simp } 675123120Simp 676123120Simp if (dmatab[i] == 0) { 677123120Simp bus_release_resource (dev, SYS_RES_IOPORT, bd->base_rid, 678123120Simp bd->base_res); 679123120Simp printf ("cx%d: Couldn't get DRQ\n", unit); 680123120Simp return ENXIO; 681123120Simp } 682123120Simp } 683123120Simp 684123120Simp bd->drq_rid = 0; 685123120Simp bd->drq_res = bus_alloc_resource (dev, SYS_RES_DRQ, &bd->drq_rid, 686123120Simp drq, drq + 1, 1, RF_ACTIVE); 687123120Simp if (! bd->drq_res) { 688123120Simp printf ("cx%d: cannot allocate drq\n", unit); 689123120Simp bus_release_resource (dev, SYS_RES_IOPORT, bd->base_rid, 690123120Simp bd->base_res); 691123120Simp return ENXIO; 692123120Simp } 693123120Simp 694123120Simp if (bus_get_resource (dev, SYS_RES_IRQ, 0, &irq, &rescount) != 0) { 695123120Simp for (i = 0; (irq = irqtab [i]) != 0; i++) { 696133647Srik if (!cx_is_free_res (dev, 0, SYS_RES_IRQ, 697123120Simp irq, irq + 1, 1)) 698123120Simp continue; 699123120Simp bus_set_resource (dev, SYS_RES_IRQ, 0, irq, 1); 700123120Simp break; 701123120Simp } 702123120Simp 703123120Simp if (irqtab[i] == 0) { 704123120Simp bus_release_resource (dev, SYS_RES_DRQ, bd->drq_rid, 705123120Simp bd->drq_res); 706123120Simp bus_release_resource (dev, SYS_RES_IOPORT, bd->base_rid, 707123120Simp bd->base_res); 708123120Simp printf ("cx%d: Couldn't get IRQ\n", unit); 709123120Simp return ENXIO; 710123120Simp } 711123120Simp } 712123120Simp 713123120Simp bd->irq_rid = 0; 714123120Simp bd->irq_res = bus_alloc_resource (dev, SYS_RES_IRQ, &bd->irq_rid, 715123120Simp irq, irq + 1, 1, RF_ACTIVE); 716123120Simp if (! bd->irq_res) { 717123120Simp printf ("cx%d: Couldn't allocate irq\n", unit); 718123120Simp bus_release_resource (dev, SYS_RES_DRQ, bd->drq_rid, 719123120Simp bd->drq_res); 720123120Simp bus_release_resource (dev, SYS_RES_IOPORT, bd->base_rid, 721123120Simp bd->base_res); 722123120Simp return ENXIO; 723123120Simp } 724123120Simp 725123120Simp b = malloc (sizeof (cx_board_t), M_DEVBUF, M_WAITOK); 726123120Simp if (!b) { 727123120Simp printf ("cx:%d: Couldn't allocate memory\n", unit); 728123120Simp return (ENXIO); 729123120Simp } 730123120Simp adapter[unit] = b; 731123120Simp bzero (b, sizeof(cx_board_t)); 732123120Simp 733123120Simp if (! cx_open_board (b, unit, iobase, irq, drq)) { 734123120Simp printf ("cx%d: error loading firmware\n", unit); 735123120Simp free (b, M_DEVBUF); 736123120Simp bus_release_resource (dev, SYS_RES_IRQ, bd->irq_rid, 737123120Simp bd->irq_res); 738123120Simp bus_release_resource (dev, SYS_RES_DRQ, bd->drq_rid, 739123120Simp bd->drq_res); 740123120Simp bus_release_resource (dev, SYS_RES_IOPORT, bd->base_rid, 741123120Simp bd->base_res); 742123120Simp return ENXIO; 743123120Simp } 744123120Simp 745123120Simp bd->board = b; 746123120Simp 747138823Srik cx_ln[2] = '0' + unit; 748138823Srik mtx_init (&bd->cx_mtx, cx_ln, MTX_NETWORK_LOCK, MTX_DEF|MTX_RECURSE); 749123120Simp if (! probe_irq (b, irq)) { 750123120Simp printf ("cx%d: irq %ld not functional\n", unit, irq); 751123120Simp bd->board = 0; 752123120Simp adapter [unit] = 0; 753138823Srik mtx_destroy (&bd->cx_mtx); 754123120Simp free (b, M_DEVBUF); 755123120Simp bus_release_resource (dev, SYS_RES_IRQ, bd->irq_rid, 756123120Simp bd->irq_res); 757123120Simp bus_release_resource (dev, SYS_RES_DRQ, bd->drq_rid, 758123120Simp bd->drq_res); 759123120Simp bus_release_resource (dev, SYS_RES_IOPORT, bd->base_rid, 760123120Simp bd->base_res); 761123120Simp return ENXIO; 762123120Simp } 763138823Srik b->sys = bd; 764188768Srwatson callout_init (&led_timo[b->num], CALLOUT_MPSAFE); 765123120Simp s = splhigh (); 766138823Srik if (bus_setup_intr (dev, bd->irq_res, 767188768Srwatson INTR_TYPE_NET|INTR_MPSAFE, 768166901Spiso NULL, cx_intr, bd, &bd->intrhand)) { 769123120Simp printf ("cx%d: Can't setup irq %ld\n", unit, irq); 770123120Simp bd->board = 0; 771138823Srik b->sys = 0; 772123120Simp adapter [unit] = 0; 773138823Srik mtx_destroy (&bd->cx_mtx); 774123120Simp free (b, M_DEVBUF); 775123120Simp bus_release_resource (dev, SYS_RES_IRQ, bd->irq_rid, 776123120Simp bd->irq_res); 777123120Simp bus_release_resource (dev, SYS_RES_DRQ, bd->drq_rid, 778123120Simp bd->drq_res); 779123120Simp bus_release_resource (dev, SYS_RES_IOPORT, bd->base_rid, 780123120Simp bd->base_res); 781123120Simp splx (s); 782123120Simp return ENXIO; 783123120Simp } 784123120Simp 785138823Srik CX_LOCK (bd); 786123120Simp cx_init (b, b->num, b->port, irq, drq); 787123120Simp cx_setup_board (b, 0, 0, 0); 788138823Srik CX_UNLOCK (bd); 789123120Simp 790123120Simp printf ("cx%d: <Cronyx-Sigma-%s>\n", b->num, b->name); 791123120Simp 792123120Simp for (c=b->chan; c<b->chan+NCHAN; ++c) { 793123120Simp if (c->type == T_NONE) 794123120Simp continue; 795130985Srik d = &bd->channel[c->num]; 796130985Srik d->dmamem.size = sizeof(cx_buf_t); 797130985Srik if (! cx_bus_dma_mem_alloc (unit, c->num, &d->dmamem)) 798130985Srik continue; 799123120Simp d->board = b; 800123120Simp d->chan = c; 801123120Simp d->open_dev = 0; 802123120Simp c->sys = d; 803138823Srik channel [b->num*NCHAN + c->num] = d; 804138823Srik sprintf (d->name, "cx%d.%d", b->num, c->num); 805123120Simp 806123120Simp switch (c->type) { 807123120Simp case T_SYNC_RS232: 808123120Simp case T_SYNC_V35: 809123120Simp case T_SYNC_RS449: 810123120Simp case T_UNIV: 811123120Simp case T_UNIV_RS232: 812123120Simp case T_UNIV_RS449: 813123120Simp case T_UNIV_V35: 814199407Sjhb callout_init (&d->timeout_handle, CALLOUT_MPSAFE); 815123120Simp#ifdef NETGRAPH 816123120Simp if (ng_make_node_common (&typestruct, &d->node) != 0) { 817123120Simp printf ("%s: cannot make common node\n", d->name); 818123120Simp channel [b->num*NCHAN + c->num] = 0; 819123120Simp c->sys = 0; 820130985Srik cx_bus_dma_mem_free (&d->dmamem); 821123120Simp continue; 822123120Simp } 823123120Simp NG_NODE_SET_PRIVATE (d->node, d); 824123120Simp sprintf (d->nodename, "%s%d", NG_CX_NODE_TYPE, 825123120Simp c->board->num*NCHAN + c->num); 826123120Simp if (ng_name_node (d->node, d->nodename)) { 827123120Simp printf ("%s: cannot name node\n", d->nodename); 828123120Simp NG_NODE_UNREF (d->node); 829123120Simp channel [b->num*NCHAN + c->num] = 0; 830123120Simp c->sys = 0; 831130985Srik cx_bus_dma_mem_free (&d->dmamem); 832123120Simp continue; 833123120Simp } 834207554Ssobomax d->lo_queue.ifq_maxlen = ifqmaxlen; 835207554Ssobomax d->hi_queue.ifq_maxlen = ifqmaxlen; 836123120Simp mtx_init (&d->lo_queue.ifq_mtx, "cx_queue_lo", NULL, MTX_DEF); 837123120Simp mtx_init (&d->hi_queue.ifq_mtx, "cx_queue_hi", NULL, MTX_DEF); 838123120Simp#else /*NETGRAPH*/ 839147256Sbrooks d->ifp = if_alloc(IFT_PPP); 840147256Sbrooks if (d->ifp == NULL) { 841147256Sbrooks printf ("%s: cannot if_alloc() common interface\n", 842147256Sbrooks d->name); 843147256Sbrooks channel [b->num*NCHAN + c->num] = 0; 844147256Sbrooks c->sys = 0; 845147256Sbrooks cx_bus_dma_mem_free (&d->dmamem); 846147256Sbrooks continue; 847147256Sbrooks } 848147856Srik d->ifp->if_softc = d; 849147256Sbrooks if_initname (d->ifp, "cx", b->num * NCHAN + c->num); 850147856Srik d->ifp->if_mtu = PP_MTU; 851147861Srik d->ifp->if_flags = IFF_POINTOPOINT | IFF_MULTICAST; 852147256Sbrooks d->ifp->if_ioctl = cx_sioctl; 853147256Sbrooks d->ifp->if_start = cx_ifstart; 854147856Srik d->ifp->if_init = cx_initialize; 855138823Srik d->queue.ifq_maxlen = 2; 856138823Srik mtx_init (&d->queue.ifq_mtx, "cx_queue", NULL, MTX_DEF); 857147256Sbrooks sppp_attach (d->ifp); 858147256Sbrooks if_attach (d->ifp); 859147856Srik IFP2SP(d->ifp)->pp_tlf = cx_tlf; 860147856Srik IFP2SP(d->ifp)->pp_tls = cx_tls; 861123120Simp /* If BPF is in the kernel, call the attach for it. 862123120Simp * Size of PPP header is 4 bytes. */ 863147256Sbrooks bpfattach (d->ifp, DLT_PPP, 4); 864123120Simp#endif /*NETGRAPH*/ 865123120Simp } 866136480Sphk d->tty = ttyalloc (); 867147856Srik d->tty->t_open = cx_topen; 868147856Srik d->tty->t_close = cx_tclose; 869147856Srik d->tty->t_param = cx_param; 870147856Srik d->tty->t_stop = cx_stop; 871147856Srik d->tty->t_modem = cx_tmodem; 872147860Srik d->tty->t_oproc = cx_oproc; 873147856Srik d->tty->t_sc = d; 874138823Srik CX_LOCK (bd); 875130985Srik cx_start_chan (c, d->dmamem.virt, d->dmamem.phys); 876123120Simp cx_register_receive (c, &cx_receive); 877123120Simp cx_register_transmit (c, &cx_transmit); 878123120Simp cx_register_error (c, &cx_error); 879123120Simp cx_register_modem (c, &cx_modem); 880138823Srik CX_UNLOCK (bd); 881136480Sphk 882151383Sphk ttycreate(d->tty, TS_CALLOUT, "x%r%r", b->num, c->num); 883136480Sphk d->devt = make_dev (&cx_cdevsw, b->num*NCHAN + c->num + 64, UID_ROOT, GID_WHEEL, 0600, "cx%d", b->num*NCHAN + c->num); 884136480Sphk d->devt->si_drv1 = d; 885188768Srwatson callout_init (&d->dcd_timeout_handle, CALLOUT_MPSAFE); 886123120Simp } 887123120Simp splx (s); 888123120Simp 889123120Simp return 0; 890123120Simp} 891123120Simp 892123120Simpstatic int cx_detach (device_t dev) 893123120Simp{ 894123120Simp bdrv_t *bd = device_get_softc (dev); 895123120Simp cx_board_t *b = bd->board; 896123120Simp cx_chan_t *c; 897138823Srik int s; 898123120Simp 899138823Srik KASSERT (mtx_initialized (&bd->cx_mtx), ("cx mutex not initialized")); 900138823Srik 901138823Srik s = splhigh (); 902138823Srik CX_LOCK (bd); 903123120Simp /* Check if the device is busy (open). */ 904123120Simp for (c = b->chan; c < b->chan + NCHAN; ++c) { 905123120Simp drv_t *d = (drv_t*) c->sys; 906123120Simp 907123120Simp if (!d || d->chan->type == T_NONE) 908123120Simp continue; 909123120Simp if (d->lock) { 910138823Srik CX_UNLOCK (bd); 911123120Simp splx (s); 912123120Simp return EBUSY; 913123120Simp } 914130240Srik if (c->mode == M_ASYNC && d->tty && (d->tty->t_state & TS_ISOPEN) && 915123120Simp (d->open_dev|0x2)) { 916138823Srik CX_UNLOCK (bd); 917123120Simp splx (s); 918123120Simp return EBUSY; 919123120Simp } 920123120Simp if (d->running) { 921138823Srik CX_UNLOCK (bd); 922123120Simp splx (s); 923123120Simp return EBUSY; 924123120Simp } 925123120Simp } 926123120Simp 927123120Simp /* Deactivate the timeout routine. And soft interrupt*/ 928138823Srik callout_stop (&led_timo[b->num]); 929123120Simp 930123120Simp for (c = b->chan; c < b->chan + NCHAN; ++c) { 931123120Simp drv_t *d = c->sys; 932123120Simp 933123120Simp if (!d || d->chan->type == T_NONE) 934123120Simp continue; 935123120Simp 936138823Srik callout_stop (&d->dcd_timeout_handle); 937123120Simp } 938138823Srik CX_UNLOCK (bd); 939123120Simp bus_teardown_intr (dev, bd->irq_res, bd->intrhand); 940123120Simp bus_release_resource (dev, SYS_RES_IRQ, bd->irq_rid, bd->irq_res); 941123120Simp 942123120Simp bus_release_resource (dev, SYS_RES_DRQ, bd->drq_rid, bd->drq_res); 943123120Simp 944123120Simp bus_release_resource (dev, SYS_RES_IOPORT, bd->base_rid, bd->base_res); 945123120Simp 946138823Srik CX_LOCK (bd); 947123120Simp cx_close_board (b); 948123120Simp 949123120Simp /* Detach the interfaces, free buffer memory. */ 950123120Simp for (c = b->chan; c < b->chan + NCHAN; ++c) { 951123120Simp drv_t *d = (drv_t*) c->sys; 952123120Simp 953123120Simp if (!d || d->chan->type == T_NONE) 954123120Simp continue; 955130301Srik 956130301Srik if (d->tty) { 957136480Sphk ttyfree (d->tty); 958130301Srik d->tty = NULL; 959130301Srik } 960130301Srik 961199407Sjhb callout_stop (&d->timeout_handle); 962123120Simp#ifdef NETGRAPH 963123120Simp if (d->node) { 964123120Simp ng_rmnode_self (d->node); 965123120Simp NG_NODE_UNREF (d->node); 966123120Simp d->node = NULL; 967123120Simp } 968123120Simp mtx_destroy (&d->lo_queue.ifq_mtx); 969123120Simp mtx_destroy (&d->hi_queue.ifq_mtx); 970123120Simp#else 971123120Simp /* Detach from the packet filter list of interfaces. */ 972147256Sbrooks bpfdetach (d->ifp); 973123120Simp /* Detach from the sync PPP list. */ 974147256Sbrooks sppp_detach (d->ifp); 975123120Simp 976147256Sbrooks if_detach (d->ifp); 977147256Sbrooks if_free(d->ifp); 978138823Srik /* XXXRIK: check interconnection with irq handler */ 979138823Srik IF_DRAIN (&d->queue); 980138823Srik mtx_destroy (&d->queue.ifq_mtx); 981123120Simp#endif 982136480Sphk destroy_dev (d->devt); 983123120Simp } 984123120Simp 985123120Simp cx_led_off (b); 986138823Srik CX_UNLOCK (bd); 987138823Srik callout_drain (&led_timo[b->num]); 988138823Srik for (c = b->chan; c < b->chan + NCHAN; ++c) { 989138823Srik drv_t *d = c->sys; 990138823Srik 991138823Srik if (!d || d->chan->type == T_NONE) 992138823Srik continue; 993138823Srik 994138823Srik callout_drain (&d->dcd_timeout_handle); 995199407Sjhb callout_drain (&d->timeout_handle); 996138823Srik } 997123120Simp splx (s); 998123120Simp 999123120Simp s = splhigh (); 1000123120Simp for (c = b->chan; c < b->chan + NCHAN; ++c) { 1001123120Simp drv_t *d = (drv_t*) c->sys; 1002123120Simp 1003123120Simp if (!d || d->chan->type == T_NONE) 1004123120Simp continue; 1005123120Simp 1006123120Simp /* Deallocate buffers. */ 1007130985Srik cx_bus_dma_mem_free (&d->dmamem); 1008123120Simp } 1009123120Simp bd->board = 0; 1010123120Simp adapter [b->num] = 0; 1011123120Simp free (b, M_DEVBUF); 1012123120Simp splx (s); 1013138823Srik 1014138823Srik mtx_destroy (&bd->cx_mtx); 1015123120Simp 1016123120Simp return 0; 1017123120Simp} 1018123120Simp 1019123120Simp#ifndef NETGRAPH 1020123120Simpstatic void cx_ifstart (struct ifnet *ifp) 1021123120Simp{ 1022133644Srik drv_t *d = ifp->if_softc; 1023138823Srik bdrv_t *bd = d->board->sys; 1024123120Simp 1025138823Srik CX_LOCK (bd); 1026123120Simp cx_start (d); 1027138823Srik CX_UNLOCK (bd); 1028123120Simp} 1029123120Simp 1030123120Simpstatic void cx_tlf (struct sppp *sp) 1031123120Simp{ 1032147256Sbrooks drv_t *d = SP2IFP(sp)->if_softc; 1033123120Simp 1034123120Simp CX_DEBUG (d, ("cx_tlf\n")); 1035123120Simp/* cx_set_dtr (d->chan, 0);*/ 1036123120Simp/* cx_set_rts (d->chan, 0);*/ 1037147256Sbrooks if (!(IFP2SP(d->ifp)->pp_flags & PP_FR) && !(d->ifp->if_flags & PP_CISCO)) 1038138352Srik sp->pp_down (sp); 1039123120Simp} 1040123120Simp 1041123120Simpstatic void cx_tls (struct sppp *sp) 1042123120Simp{ 1043147256Sbrooks drv_t *d = SP2IFP(sp)->if_softc; 1044123120Simp 1045123120Simp CX_DEBUG (d, ("cx_tls\n")); 1046147256Sbrooks if (!(IFP2SP(d->ifp)->pp_flags & PP_FR) && !(d->ifp->if_flags & PP_CISCO)) 1047138352Srik sp->pp_up (sp); 1048123120Simp} 1049123120Simp 1050123120Simp/* 1051123120Simp * Initialization of interface. 1052123120Simp * It seems to be never called by upper level. 1053123120Simp */ 1054123120Simpstatic void cx_initialize (void *softc) 1055123120Simp{ 1056123120Simp drv_t *d = softc; 1057123120Simp 1058123120Simp CX_DEBUG (d, ("cx_initialize\n")); 1059123120Simp} 1060123120Simp 1061123120Simp/* 1062123120Simp * Process an ioctl request. 1063123120Simp */ 1064123120Simpstatic int cx_sioctl (struct ifnet *ifp, u_long cmd, caddr_t data) 1065123120Simp{ 1066123120Simp drv_t *d = ifp->if_softc; 1067138823Srik bdrv_t *bd = d->board->sys; 1068123120Simp int error, s, was_up, should_be_up; 1069123120Simp 1070123120Simp /* No socket ioctls while the channel is in async mode. */ 1071123120Simp if (d->chan->type == T_NONE || d->chan->mode == M_ASYNC) 1072123120Simp return EBUSY; 1073123120Simp 1074123120Simp /* Socket ioctls on slave subchannels are not allowed. */ 1075148887Srwatson was_up = (ifp->if_drv_flags & IFF_DRV_RUNNING) != 0; 1076123120Simp error = sppp_ioctl (ifp, cmd, data); 1077123120Simp if (error) 1078123120Simp return error; 1079123120Simp 1080180132Srik s = splhigh (); 1081180132Srik CX_LOCK (bd); 1082123120Simp if (! (ifp->if_flags & IFF_DEBUG)) 1083123120Simp d->chan->debug = 0; 1084180132Srik else 1085180132Srik d->chan->debug = d->chan->debug_shadow; 1086180132Srik CX_UNLOCK (bd); 1087180132Srik splx (s); 1088123120Simp 1089123120Simp switch (cmd) { 1090133644Srik default: CX_DEBUG2 (d, ("ioctl 0x%lx\n", cmd)); return 0; 1091123120Simp case SIOCADDMULTI: CX_DEBUG2 (d, ("SIOCADDMULTI\n")); return 0; 1092123120Simp case SIOCDELMULTI: CX_DEBUG2 (d, ("SIOCDELMULTI\n")); return 0; 1093123120Simp case SIOCSIFFLAGS: CX_DEBUG2 (d, ("SIOCSIFFLAGS\n")); break; 1094123120Simp case SIOCSIFADDR: CX_DEBUG2 (d, ("SIOCSIFADDR\n")); break; 1095123120Simp } 1096123120Simp 1097123120Simp /* We get here only in case of SIFFLAGS or SIFADDR. */ 1098123120Simp s = splhigh (); 1099138823Srik CX_LOCK (bd); 1100148887Srwatson should_be_up = (ifp->if_drv_flags & IFF_DRV_RUNNING) != 0; 1101123120Simp if (!was_up && should_be_up) { 1102123120Simp /* Interface goes up -- start it. */ 1103123120Simp cx_up (d); 1104123120Simp cx_start (d); 1105123120Simp } else if (was_up && !should_be_up) { 1106123120Simp /* Interface is going down -- stop it. */ 1107147256Sbrooks /* if ((IFP2SP(d->ifp)->pp_flags & PP_FR) || (ifp->if_flags & PP_CISCO))*/ 1108123120Simp cx_down (d); 1109123120Simp } 1110138823Srik CX_UNLOCK (bd); 1111123120Simp splx (s); 1112123120Simp return 0; 1113123120Simp} 1114123120Simp#endif /*NETGRAPH*/ 1115123120Simp 1116123120Simp/* 1117123120Simp * Stop the interface. Called on splimp(). 1118123120Simp */ 1119123120Simpstatic void cx_down (drv_t *d) 1120123120Simp{ 1121123120Simp int s = splhigh (); 1122123120Simp CX_DEBUG (d, ("cx_down\n")); 1123123120Simp cx_set_dtr (d->chan, 0); 1124123120Simp cx_set_rts (d->chan, 0); 1125123120Simp d->running = 0; 1126199407Sjhb callout_stop (&d->timeout_handle); 1127123120Simp splx (s); 1128123120Simp} 1129123120Simp 1130123120Simp/* 1131123120Simp * Start the interface. Called on splimp(). 1132123120Simp */ 1133123120Simpstatic void cx_up (drv_t *d) 1134123120Simp{ 1135123120Simp int s = splhigh (); 1136123120Simp CX_DEBUG (d, ("cx_up\n")); 1137123120Simp cx_set_dtr (d->chan, 1); 1138123120Simp cx_set_rts (d->chan, 1); 1139123120Simp d->running = 1; 1140123120Simp splx (s); 1141123120Simp} 1142123120Simp 1143123120Simp/* 1144123120Simp * Start output on the (slave) interface. Get another datagram to send 1145123120Simp * off of the interface queue, and copy it to the interface 1146123120Simp * before starting the output. 1147123120Simp */ 1148123120Simpstatic void cx_send (drv_t *d) 1149123120Simp{ 1150123120Simp struct mbuf *m; 1151123120Simp u_short len; 1152123120Simp 1153123120Simp CX_DEBUG2 (d, ("cx_send\n")); 1154123120Simp 1155123120Simp /* No output if the interface is down. */ 1156123120Simp if (! d->running) 1157123120Simp return; 1158123120Simp 1159123120Simp /* No output if the modem is off. */ 1160123120Simp if (! cx_get_dsr (d->chan) && ! cx_get_loop(d->chan)) 1161123120Simp return; 1162123120Simp 1163123120Simp if (cx_buf_free (d->chan)) { 1164123120Simp /* Get the packet to send. */ 1165123120Simp#ifdef NETGRAPH 1166123120Simp IF_DEQUEUE (&d->hi_queue, m); 1167123120Simp if (! m) 1168123120Simp IF_DEQUEUE (&d->lo_queue, m); 1169123120Simp#else 1170147256Sbrooks m = sppp_dequeue (d->ifp); 1171123120Simp#endif 1172123120Simp if (! m) 1173123120Simp return; 1174130971Srik#ifndef NETGRAPH 1175165632Sjhb BPF_MTAP (d->ifp, m); 1176123120Simp#endif 1177147862Srik len = m_length (m, NULL); 1178123120Simp if (! m->m_next) 1179123120Simp cx_send_packet (d->chan, (u_char*)mtod (m, caddr_t), 1180123120Simp len, 0); 1181123120Simp else { 1182123120Simp u_char buf [DMABUFSZ]; 1183123120Simp m_copydata (m, 0, len, buf); 1184123120Simp cx_send_packet (d->chan, buf, len, 0); 1185123120Simp } 1186123120Simp m_freem (m); 1187123120Simp 1188123120Simp /* Set up transmit timeout, 10 seconds. */ 1189123120Simp d->timeout = 10; 1190123120Simp } 1191123120Simp#ifndef NETGRAPH 1192148887Srwatson d->ifp->if_drv_flags |= IFF_DRV_OACTIVE; 1193123120Simp#endif 1194123120Simp} 1195123120Simp 1196123120Simp/* 1197123120Simp * Start output on the interface. 1198123120Simp * Always called on splimp(). 1199123120Simp */ 1200123120Simpstatic void cx_start (drv_t *d) 1201123120Simp{ 1202123120Simp int s = splhigh (); 1203123120Simp if (d->running) { 1204123120Simp if (! d->chan->dtr) 1205123120Simp cx_set_dtr (d->chan, 1); 1206123120Simp if (! d->chan->rts) 1207123120Simp cx_set_rts (d->chan, 1); 1208123120Simp cx_send (d); 1209199407Sjhb callout_reset (&d->timeout_handle, hz, cx_watchdog_timer, d); 1210123120Simp } 1211123120Simp splx (s); 1212123120Simp} 1213123120Simp 1214123120Simp/* 1215123120Simp * Handle transmit timeouts. 1216123120Simp * Recover after lost transmit interrupts. 1217123120Simp * Always called on splimp(). 1218123120Simp */ 1219123120Simpstatic void cx_watchdog (drv_t *d) 1220123120Simp{ 1221138823Srik 1222123120Simp CX_DEBUG (d, ("device timeout\n")); 1223123120Simp if (d->running) { 1224123120Simp cx_setup_chan (d->chan); 1225123120Simp cx_start_chan (d->chan, 0, 0); 1226123120Simp cx_set_dtr (d->chan, 1); 1227123120Simp cx_set_rts (d->chan, 1); 1228123120Simp cx_start (d); 1229123120Simp } 1230199407Sjhb} 1231199407Sjhb 1232199407Sjhbstatic void cx_watchdog_timer (void *arg) 1233199407Sjhb{ 1234199407Sjhb drv_t *d = arg; 1235199407Sjhb bdrv_t *bd = d->board->sys; 1236199407Sjhb 1237199407Sjhb CX_LOCK (bd); 1238199407Sjhb if (d->timeout == 1) 1239199407Sjhb cx_watchdog (d); 1240199407Sjhb if (d->timeout) 1241199407Sjhb d->timeout--; 1242199407Sjhb callout_reset (&d->timeout_handle, hz, cx_watchdog_timer, d); 1243138823Srik CX_UNLOCK (bd); 1244123120Simp} 1245123120Simp 1246123120Simp/* 1247123120Simp * Transmit callback function. 1248123120Simp */ 1249123120Simpstatic void cx_transmit (cx_chan_t *c, void *attachment, int len) 1250123120Simp{ 1251123120Simp drv_t *d = c->sys; 1252123120Simp 1253123120Simp if (!d) 1254123120Simp return; 1255123120Simp 1256130240Srik if (c->mode == M_ASYNC && d->tty) { 1257130240Srik d->tty->t_state &= ~(TS_BUSY | TS_FLUSH); 1258123120Simp d->atimeout = 0; 1259130240Srik if (d->tty->t_dev) { 1260123120Simp d->intr_action |= CX_WRITE; 1261123120Simp MY_SOFT_INTR = 1; 1262123120Simp swi_sched (cx_fast_ih, 0); 1263123120Simp } 1264123120Simp return; 1265123120Simp } 1266123120Simp d->timeout = 0; 1267199407Sjhb#ifndef NETGRAPH 1268147256Sbrooks ++d->ifp->if_opackets; 1269148887Srwatson d->ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 1270123120Simp#endif 1271123120Simp cx_start (d); 1272123120Simp} 1273123120Simp 1274123120Simp/* 1275123120Simp * Process the received packet. 1276123120Simp */ 1277123120Simpstatic void cx_receive (cx_chan_t *c, char *data, int len) 1278123120Simp{ 1279123120Simp drv_t *d = c->sys; 1280123120Simp struct mbuf *m; 1281123120Simp char *cc = data; 1282138823Srik#ifdef NETGRAPH 1283123120Simp int error; 1284123120Simp#endif 1285123120Simp 1286123120Simp if (!d) 1287123120Simp return; 1288123120Simp 1289130240Srik if (c->mode == M_ASYNC && d->tty) { 1290130240Srik if (d->tty->t_state & TS_ISOPEN) { 1291123120Simp async_q *q = &d->aqueue; 1292123120Simp int size = BF_SZ - 1 - AQ_GSZ (q); 1293123120Simp 1294123120Simp if (len <= 0 && !size) 1295123120Simp return; 1296123120Simp 1297123120Simp if (len > size) { 1298133644Srik c->ierrs++; 1299123120Simp cx_error (c, CX_OVERRUN); 1300123120Simp len = size - 1; 1301123120Simp } 1302123120Simp 1303123120Simp while (len--) { 1304123120Simp AQ_PUSH (q, *(unsigned char *)cc); 1305123120Simp cc++; 1306123120Simp } 1307123120Simp 1308123120Simp d->intr_action |= CX_READ; 1309123120Simp MY_SOFT_INTR = 1; 1310123120Simp swi_sched (cx_fast_ih, 0); 1311123120Simp } 1312123120Simp return; 1313123120Simp } 1314123120Simp if (! d->running) 1315123120Simp return; 1316123120Simp 1317123120Simp m = makembuf (data, len); 1318123120Simp if (! m) { 1319123120Simp CX_DEBUG (d, ("no memory for packet\n")); 1320123120Simp#ifndef NETGRAPH 1321147256Sbrooks ++d->ifp->if_iqdrops; 1322123120Simp#endif 1323123120Simp return; 1324123120Simp } 1325123120Simp if (c->debug > 1) 1326123120Simp printmbuf (m); 1327123120Simp#ifdef NETGRAPH 1328123120Simp m->m_pkthdr.rcvif = 0; 1329123120Simp NG_SEND_DATA_ONLY (error, d->hook, m); 1330123120Simp#else 1331147256Sbrooks ++d->ifp->if_ipackets; 1332147256Sbrooks m->m_pkthdr.rcvif = d->ifp; 1333123120Simp /* Check if there's a BPF listener on this interface. 1334123120Simp * If so, hand off the raw packet to bpf. */ 1335165632Sjhb BPF_TAP (d->ifp, data, len); 1336138823Srik IF_ENQUEUE (&d->queue, m); 1337123120Simp#endif 1338123120Simp} 1339123120Simp 1340123120Simp#define CONDITION(t,tp) (!(t->c_iflag & (ICRNL | IGNCR | IMAXBEL | INLCR | ISTRIP | IXON))\ 1341123120Simp && (!(tp->t_iflag & BRKINT) || (tp->t_iflag & IGNBRK))\ 1342123120Simp && (!(tp->t_iflag & PARMRK)\ 1343123120Simp || (tp->t_iflag & (IGNPAR | IGNBRK)) == (IGNPAR | IGNBRK))\ 1344123120Simp && !(t->c_lflag & (ECHO | ICANON | IEXTEN | ISIG | PENDIN))\ 1345130203Sphk && linesw[tp->t_line]->l_rint == ttyinput) 1346123120Simp 1347123120Simp/* 1348123120Simp * Error callback function. 1349123120Simp */ 1350123120Simpstatic void cx_error (cx_chan_t *c, int data) 1351123120Simp{ 1352123120Simp drv_t *d = c->sys; 1353123120Simp async_q *q; 1354123120Simp 1355123120Simp if (!d) 1356123120Simp return; 1357123120Simp 1358123120Simp q = &(d->aqueue); 1359123120Simp 1360123120Simp switch (data) { 1361123120Simp case CX_FRAME: 1362123120Simp CX_DEBUG (d, ("frame error\n")); 1363130240Srik if (c->mode == M_ASYNC && d->tty && (d->tty->t_state & TS_ISOPEN) 1364123120Simp && (AQ_GSZ (q) < BF_SZ - 1) 1365130240Srik && (!CONDITION((&d->tty->t_termios), (d->tty)) 1366130240Srik || !(d->tty->t_iflag & (IGNPAR | PARMRK)))) { 1367123120Simp AQ_PUSH (q, TTY_FE); 1368123120Simp d->intr_action |= CX_READ; 1369123120Simp MY_SOFT_INTR = 1; 1370123120Simp swi_sched (cx_fast_ih, 0); 1371123120Simp } 1372123120Simp#ifndef NETGRAPH 1373123120Simp else 1374147256Sbrooks ++d->ifp->if_ierrors; 1375123120Simp#endif 1376123120Simp break; 1377123120Simp case CX_CRC: 1378123120Simp CX_DEBUG (d, ("crc error\n")); 1379130240Srik if (c->mode == M_ASYNC && d->tty && (d->tty->t_state & TS_ISOPEN) 1380123120Simp && (AQ_GSZ (q) < BF_SZ - 1) 1381130240Srik && (!CONDITION((&d->tty->t_termios), (d->tty)) 1382130240Srik || !(d->tty->t_iflag & INPCK) 1383130240Srik || !(d->tty->t_iflag & (IGNPAR | PARMRK)))) { 1384123120Simp AQ_PUSH (q, TTY_PE); 1385123120Simp d->intr_action |= CX_READ; 1386123120Simp MY_SOFT_INTR = 1; 1387123120Simp swi_sched (cx_fast_ih, 0); 1388123120Simp } 1389123120Simp#ifndef NETGRAPH 1390123120Simp else 1391147256Sbrooks ++d->ifp->if_ierrors; 1392123120Simp#endif 1393123120Simp break; 1394123120Simp case CX_OVERRUN: 1395123120Simp CX_DEBUG (d, ("overrun error\n")); 1396123120Simp#ifdef TTY_OE 1397130240Srik if (c->mode == M_ASYNC && d->tty && (d->tty->t_state & TS_ISOPEN) 1398123120Simp && (AQ_GSZ (q) < BF_SZ - 1) 1399130240Srik && (!CONDITION((&d->tty->t_termios), (d->tty)))) { 1400123120Simp AQ_PUSH (q, TTY_OE); 1401123120Simp d->intr_action |= CX_READ; 1402123120Simp MY_SOFT_INTR = 1; 1403123120Simp swi_sched (cx_fast_ih, 0); 1404123120Simp } 1405123120Simp#endif 1406123120Simp#ifndef NETGRAPH 1407123120Simp else { 1408147256Sbrooks ++d->ifp->if_collisions; 1409147256Sbrooks ++d->ifp->if_ierrors; 1410123120Simp } 1411123120Simp#endif 1412123120Simp break; 1413123120Simp case CX_OVERFLOW: 1414123120Simp CX_DEBUG (d, ("overflow error\n")); 1415123120Simp#ifndef NETGRAPH 1416123120Simp if (c->mode != M_ASYNC) 1417147256Sbrooks ++d->ifp->if_ierrors; 1418123120Simp#endif 1419123120Simp break; 1420123120Simp case CX_UNDERRUN: 1421123120Simp CX_DEBUG (d, ("underrun error\n")); 1422123120Simp if (c->mode != M_ASYNC) { 1423123120Simp d->timeout = 0; 1424199407Sjhb#ifndef NETGRAPH 1425147256Sbrooks ++d->ifp->if_oerrors; 1426148887Srwatson d->ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 1427199407Sjhb#endif 1428123120Simp cx_start (d); 1429123120Simp } 1430123120Simp break; 1431123120Simp case CX_BREAK: 1432123120Simp CX_DEBUG (d, ("break error\n")); 1433130240Srik if (c->mode == M_ASYNC && d->tty && (d->tty->t_state & TS_ISOPEN) 1434123120Simp && (AQ_GSZ (q) < BF_SZ - 1) 1435130240Srik && (!CONDITION((&d->tty->t_termios), (d->tty)) 1436130240Srik || !(d->tty->t_iflag & (IGNBRK | BRKINT | PARMRK)))) { 1437123120Simp AQ_PUSH (q, TTY_BI); 1438123120Simp d->intr_action |= CX_READ; 1439123120Simp MY_SOFT_INTR = 1; 1440123120Simp swi_sched (cx_fast_ih, 0); 1441123120Simp } 1442123120Simp#ifndef NETGRAPH 1443123120Simp else 1444147256Sbrooks ++d->ifp->if_ierrors; 1445123120Simp#endif 1446123120Simp break; 1447123120Simp default: 1448123120Simp CX_DEBUG (d, ("error #%d\n", data)); 1449123120Simp } 1450123120Simp} 1451123120Simp 1452136480Sphkstatic int cx_topen (struct tty *tp, struct cdev *dev) 1453123120Simp{ 1454138823Srik bdrv_t *bd; 1455123120Simp drv_t *d; 1456123120Simp 1457136480Sphk d = tp->t_sc; 1458138823Srik CX_DEBUG2 (d, ("cx_open (serial)\n")); 1459138823Srik 1460138823Srik bd = d->board->sys; 1461138823Srik 1462136480Sphk if (d->chan->mode != M_ASYNC) 1463136480Sphk return (EBUSY); 1464138823Srik 1465123120Simp d->open_dev |= 0x2; 1466138823Srik CX_LOCK (bd); 1467136480Sphk cx_start_chan (d->chan, 0, 0); 1468136480Sphk cx_set_dtr (d->chan, 1); 1469136480Sphk cx_set_rts (d->chan, 1); 1470136480Sphk d->cd = cx_get_cd (d->chan); 1471138823Srik CX_UNLOCK (bd); 1472138823Srik 1473138823Srik CX_DEBUG2 (d, ("cx_open done\n")); 1474138823Srik 1475138823Srik return 0; 1476123120Simp} 1477123120Simp 1478136480Sphkstatic void cx_tclose (struct tty *tp) 1479123120Simp{ 1480136480Sphk drv_t *d; 1481138823Srik bdrv_t *bd; 1482123120Simp 1483136480Sphk d = tp->t_sc; 1484138823Srik CX_DEBUG2 (d, ("cx_close\n")); 1485138823Srik bd = d->board->sys; 1486138823Srik CX_LOCK (bd); 1487123120Simp /* Disable receiver. 1488123120Simp * Transmitter continues sending the queued data. */ 1489123120Simp cx_enable_receive (d->chan, 0); 1490138823Srik CX_UNLOCK (bd); 1491123120Simp d->open_dev &= ~0x2; 1492123120Simp} 1493123120Simp 1494136480Sphkstatic int cx_tmodem (struct tty *tp, int sigon, int sigoff) 1495123120Simp{ 1496136480Sphk drv_t *d; 1497138823Srik bdrv_t *bd; 1498123120Simp 1499136480Sphk d = tp->t_sc; 1500138823Srik bd = d->board->sys; 1501123120Simp 1502138823Srik CX_LOCK (bd); 1503136480Sphk if (!sigon && !sigoff) { 1504136480Sphk if (cx_get_dsr (d->chan)) sigon |= SER_DSR; 1505136480Sphk if (cx_get_cd (d->chan)) sigon |= SER_DCD; 1506136480Sphk if (cx_get_cts (d->chan)) sigon |= SER_CTS; 1507136480Sphk if (d->chan->dtr) sigon |= SER_DTR; 1508136480Sphk if (d->chan->rts) sigon |= SER_RTS; 1509147859Srik CX_UNLOCK (bd); 1510136480Sphk return sigon; 1511136480Sphk } 1512136480Sphk 1513136480Sphk if (sigon & SER_DTR) 1514136480Sphk cx_set_dtr (d->chan, 1); 1515136480Sphk if (sigoff & SER_DTR) 1516136480Sphk cx_set_dtr (d->chan, 0); 1517136480Sphk if (sigon & SER_RTS) 1518136480Sphk cx_set_rts (d->chan, 1); 1519136480Sphk if (sigoff & SER_RTS) 1520136480Sphk cx_set_rts (d->chan, 0); 1521138823Srik CX_UNLOCK (bd); 1522138823Srik 1523136480Sphk return (0); 1524123120Simp} 1525123120Simp 1526150622Srikstatic int cx_open (struct cdev *dev, int flag, int mode, struct thread *td) 1527150622Srik{ 1528150622Srik int unit; 1529150622Srik drv_t *d; 1530150622Srik 1531150622Srik d = dev->si_drv1; 1532150622Srik unit = d->chan->num; 1533150622Srik 1534150622Srik CX_DEBUG2 (d, ("cx_open unit=%d, flag=0x%x, mode=0x%x\n", 1535150622Srik unit, flag, mode)); 1536150622Srik 1537150622Srik d->open_dev |= 0x1; 1538150622Srik 1539150622Srik CX_DEBUG2 (d, ("cx_open done\n")); 1540150622Srik 1541150622Srik return 0; 1542150622Srik} 1543150622Srik 1544150622Srikstatic int cx_close (struct cdev *dev, int flag, int mode, struct thread *td) 1545150622Srik{ 1546150622Srik drv_t *d; 1547150622Srik 1548150622Srik d = dev->si_drv1; 1549150622Srik CX_DEBUG2 (d, ("cx_close\n")); 1550150622Srik d->open_dev &= ~0x1; 1551150622Srik return 0; 1552150622Srik} 1553150622Srik 1554150622Srikstatic int cx_modem_status (drv_t *d) 1555150622Srik{ 1556150622Srik bdrv_t *bd = d->board->sys; 1557150622Srik int status = 0, s = splhigh (); 1558150622Srik CX_LOCK (bd); 1559150622Srik /* Already opened by someone or network interface is up? */ 1560150622Srik if ((d->chan->mode == M_ASYNC && d->tty && (d->tty->t_state & TS_ISOPEN) && 1561150622Srik (d->open_dev|0x2)) || (d->chan->mode != M_ASYNC && d->running)) 1562150622Srik status = TIOCM_LE; /* always enabled while open */ 1563150622Srik 1564150622Srik if (cx_get_dsr (d->chan)) status |= TIOCM_DSR; 1565150622Srik if (cx_get_cd (d->chan)) status |= TIOCM_CD; 1566150622Srik if (cx_get_cts (d->chan)) status |= TIOCM_CTS; 1567150622Srik if (d->chan->dtr) status |= TIOCM_DTR; 1568150622Srik if (d->chan->rts) status |= TIOCM_RTS; 1569150622Srik CX_UNLOCK (bd); 1570150622Srik splx (s); 1571150622Srik return status; 1572150622Srik} 1573150622Srik 1574150622Srikstatic int cx_ioctl (struct cdev *dev, u_long cmd, caddr_t data, int flag, struct thread *td) 1575150622Srik{ 1576150622Srik drv_t *d; 1577150622Srik bdrv_t *bd; 1578150622Srik cx_chan_t *c; 1579150622Srik struct serial_statistics *st; 1580150622Srik int error, s; 1581150622Srik char mask[16]; 1582150622Srik 1583150622Srik d = dev->si_drv1; 1584150622Srik c = d->chan; 1585150622Srik 1586150622Srik bd = d->board->sys; 1587150622Srik 1588150622Srik switch (cmd) { 1589150622Srik case SERIAL_GETREGISTERED: 1590150622Srik CX_DEBUG2 (d, ("ioctl: getregistered\n")); 1591150622Srik bzero (mask, sizeof(mask)); 1592150622Srik for (s=0; s<NCX*NCHAN; ++s) 1593150622Srik if (channel [s]) 1594150622Srik mask [s/8] |= 1 << (s & 7); 1595150622Srik bcopy (mask, data, sizeof (mask)); 1596150622Srik return 0; 1597150622Srik 1598150622Srik case SERIAL_GETPORT: 1599150622Srik CX_DEBUG2 (d, ("ioctl: getport\n")); 1600150622Srik s = splhigh (); 1601150622Srik CX_LOCK (bd); 1602150622Srik *(int *)data = cx_get_port (c); 1603150622Srik CX_UNLOCK (bd); 1604150622Srik splx (s); 1605150622Srik if (*(int *)data<0) 1606150622Srik return (EINVAL); 1607150622Srik else 1608150622Srik return 0; 1609150622Srik 1610150622Srik case SERIAL_SETPORT: 1611150622Srik CX_DEBUG2 (d, ("ioctl: setproto\n")); 1612150622Srik /* Only for superuser! */ 1613164033Srwatson error = priv_check (td, PRIV_DRIVER); 1614150622Srik if (error) 1615150622Srik return error; 1616150622Srik 1617150622Srik s = splhigh (); 1618150622Srik CX_LOCK (bd); 1619150622Srik cx_set_port (c, *(int *)data); 1620150622Srik CX_UNLOCK (bd); 1621150622Srik splx (s); 1622150622Srik return 0; 1623150622Srik 1624150622Srik#ifndef NETGRAPH 1625150622Srik case SERIAL_GETPROTO: 1626150622Srik CX_DEBUG2 (d, ("ioctl: getproto\n")); 1627150622Srik s = splhigh (); 1628150622Srik CX_LOCK (bd); 1629150622Srik strcpy ((char*)data, (c->mode == M_ASYNC) ? "async" : 1630150622Srik (IFP2SP(d->ifp)->pp_flags & PP_FR) ? "fr" : 1631150622Srik (d->ifp->if_flags & PP_CISCO) ? "cisco" : "ppp"); 1632150622Srik CX_UNLOCK (bd); 1633150622Srik splx (s); 1634150622Srik return 0; 1635150622Srik 1636150622Srik case SERIAL_SETPROTO: 1637150622Srik CX_DEBUG2 (d, ("ioctl: setproto\n")); 1638150622Srik /* Only for superuser! */ 1639164033Srwatson error = priv_check (td, PRIV_DRIVER); 1640150622Srik if (error) 1641150622Srik return error; 1642150622Srik if (c->mode == M_ASYNC) 1643150622Srik return EBUSY; 1644150622Srik if (d->ifp->if_drv_flags & IFF_DRV_RUNNING) 1645150622Srik return EBUSY; 1646150622Srik if (! strcmp ("cisco", (char*)data)) { 1647150622Srik IFP2SP(d->ifp)->pp_flags &= ~(PP_FR); 1648150622Srik IFP2SP(d->ifp)->pp_flags |= PP_KEEPALIVE; 1649150622Srik d->ifp->if_flags |= PP_CISCO; 1650150622Srik } else if (! strcmp ("fr", (char*)data)) { 1651150622Srik d->ifp->if_flags &= ~(PP_CISCO); 1652150622Srik IFP2SP(d->ifp)->pp_flags |= PP_FR | PP_KEEPALIVE; 1653150622Srik } else if (! strcmp ("ppp", (char*)data)) { 1654150622Srik IFP2SP(d->ifp)->pp_flags &= ~(PP_FR | PP_KEEPALIVE); 1655150622Srik d->ifp->if_flags &= ~(PP_CISCO); 1656150622Srik } else 1657150622Srik return EINVAL; 1658150622Srik return 0; 1659150622Srik 1660150622Srik case SERIAL_GETKEEPALIVE: 1661150622Srik CX_DEBUG2 (d, ("ioctl: getkeepalive\n")); 1662150622Srik if ((IFP2SP(d->ifp)->pp_flags & PP_FR) || 1663150622Srik (d->ifp->if_flags & PP_CISCO) || 1664150622Srik (c->mode == M_ASYNC)) 1665150622Srik return EINVAL; 1666150622Srik s = splhigh (); 1667150622Srik CX_LOCK (bd); 1668150622Srik *(int*)data = (IFP2SP(d->ifp)->pp_flags & PP_KEEPALIVE) ? 1 : 0; 1669150622Srik CX_UNLOCK (bd); 1670150622Srik splx (s); 1671150622Srik return 0; 1672150622Srik 1673150622Srik case SERIAL_SETKEEPALIVE: 1674150622Srik CX_DEBUG2 (d, ("ioctl: setkeepalive\n")); 1675150622Srik /* Only for superuser! */ 1676164033Srwatson error = priv_check (td, PRIV_DRIVER); 1677150622Srik if (error) 1678150622Srik return error; 1679150622Srik if ((IFP2SP(d->ifp)->pp_flags & PP_FR) || 1680150622Srik (d->ifp->if_flags & PP_CISCO)) 1681150622Srik return EINVAL; 1682150622Srik s = splhigh (); 1683150622Srik CX_LOCK (bd); 1684150622Srik if (*(int*)data) 1685150622Srik IFP2SP(d->ifp)->pp_flags |= PP_KEEPALIVE; 1686150622Srik else 1687150622Srik IFP2SP(d->ifp)->pp_flags &= ~PP_KEEPALIVE; 1688150622Srik CX_UNLOCK (bd); 1689150622Srik splx (s); 1690150622Srik return 0; 1691150622Srik#endif /*NETGRAPH*/ 1692150622Srik 1693150622Srik case SERIAL_GETMODE: 1694150622Srik CX_DEBUG2 (d, ("ioctl: getmode\n")); 1695150622Srik s = splhigh (); 1696150622Srik CX_LOCK (bd); 1697150622Srik *(int*)data = (c->mode == M_ASYNC) ? 1698150622Srik SERIAL_ASYNC : SERIAL_HDLC; 1699150622Srik CX_UNLOCK (bd); 1700150622Srik splx (s); 1701150622Srik return 0; 1702150622Srik 1703150622Srik case SERIAL_SETMODE: 1704150622Srik CX_DEBUG2 (d, ("ioctl: setmode\n")); 1705150622Srik /* Only for superuser! */ 1706164033Srwatson error = priv_check (td, PRIV_DRIVER); 1707150622Srik if (error) 1708150622Srik return error; 1709150622Srik 1710150622Srik /* Somebody is waiting for carrier? */ 1711150622Srik if (d->lock) 1712150622Srik return EBUSY; 1713150622Srik /* /dev/ttyXX is already opened by someone? */ 1714150622Srik if (c->mode == M_ASYNC && d->tty && (d->tty->t_state & TS_ISOPEN) && 1715150622Srik (d->open_dev|0x2)) 1716150622Srik return EBUSY; 1717150622Srik /* Network interface is up? 1718150622Srik * Cannot change to async mode. */ 1719150622Srik if (c->mode != M_ASYNC && d->running && 1720150622Srik (*(int*)data == SERIAL_ASYNC)) 1721150622Srik return EBUSY; 1722150622Srik 1723150622Srik s = splhigh (); 1724150622Srik CX_LOCK (bd); 1725150622Srik if (c->mode == M_HDLC && *(int*)data == SERIAL_ASYNC) { 1726150622Srik cx_set_mode (c, M_ASYNC); 1727150622Srik cx_enable_receive (c, 0); 1728150622Srik cx_enable_transmit (c, 0); 1729150622Srik } else if (c->mode == M_ASYNC && *(int*)data == SERIAL_HDLC) { 1730180132Srik if (d->ifp->if_flags & IFF_DEBUG) 1731180132Srik c->debug = c->debug_shadow; 1732150622Srik cx_set_mode (c, M_HDLC); 1733150622Srik cx_enable_receive (c, 1); 1734150622Srik cx_enable_transmit (c, 1); 1735150622Srik } 1736150622Srik CX_UNLOCK (bd); 1737150622Srik splx (s); 1738150622Srik return 0; 1739150622Srik 1740150622Srik case SERIAL_GETSTAT: 1741150622Srik CX_DEBUG2 (d, ("ioctl: getestat\n")); 1742150622Srik st = (struct serial_statistics*) data; 1743150622Srik s = splhigh (); 1744150622Srik CX_LOCK (bd); 1745150622Srik st->rintr = c->rintr; 1746150622Srik st->tintr = c->tintr; 1747150622Srik st->mintr = c->mintr; 1748150622Srik st->ibytes = c->ibytes; 1749150622Srik st->ipkts = c->ipkts; 1750150622Srik st->ierrs = c->ierrs; 1751150622Srik st->obytes = c->obytes; 1752150622Srik st->opkts = c->opkts; 1753150622Srik st->oerrs = c->oerrs; 1754150622Srik CX_UNLOCK (bd); 1755150622Srik splx (s); 1756150622Srik return 0; 1757150622Srik 1758150622Srik case SERIAL_CLRSTAT: 1759150622Srik CX_DEBUG2 (d, ("ioctl: clrstat\n")); 1760150622Srik /* Only for superuser! */ 1761164033Srwatson error = priv_check (td, PRIV_DRIVER); 1762150622Srik if (error) 1763150622Srik return error; 1764150622Srik s = splhigh (); 1765150622Srik CX_LOCK (bd); 1766150622Srik c->rintr = 0; 1767150622Srik c->tintr = 0; 1768150622Srik c->mintr = 0; 1769150622Srik c->ibytes = 0; 1770150622Srik c->ipkts = 0; 1771150622Srik c->ierrs = 0; 1772150622Srik c->obytes = 0; 1773150622Srik c->opkts = 0; 1774150622Srik c->oerrs = 0; 1775150622Srik CX_UNLOCK (bd); 1776150622Srik splx (s); 1777150622Srik return 0; 1778150622Srik 1779150622Srik case SERIAL_GETBAUD: 1780150622Srik CX_DEBUG2 (d, ("ioctl: getbaud\n")); 1781150622Srik if (c->mode == M_ASYNC) 1782150622Srik return EINVAL; 1783150622Srik s = splhigh (); 1784150622Srik CX_LOCK (bd); 1785150622Srik *(long*)data = cx_get_baud(c); 1786150622Srik CX_UNLOCK (bd); 1787150622Srik splx (s); 1788150622Srik return 0; 1789150622Srik 1790150622Srik case SERIAL_SETBAUD: 1791150622Srik CX_DEBUG2 (d, ("ioctl: setbaud\n")); 1792150622Srik /* Only for superuser! */ 1793164033Srwatson error = priv_check (td, PRIV_DRIVER); 1794150622Srik if (error) 1795150622Srik return error; 1796150622Srik if (c->mode == M_ASYNC) 1797150622Srik return EINVAL; 1798150622Srik s = splhigh (); 1799150622Srik CX_LOCK (bd); 1800150622Srik cx_set_baud (c, *(long*)data); 1801150622Srik CX_UNLOCK (bd); 1802150622Srik splx (s); 1803150622Srik return 0; 1804150622Srik 1805150622Srik case SERIAL_GETLOOP: 1806150622Srik CX_DEBUG2 (d, ("ioctl: getloop\n")); 1807150622Srik if (c->mode == M_ASYNC) 1808150622Srik return EINVAL; 1809150622Srik s = splhigh (); 1810150622Srik CX_LOCK (bd); 1811150622Srik *(int*)data = cx_get_loop (c); 1812150622Srik CX_UNLOCK (bd); 1813150622Srik splx (s); 1814150622Srik return 0; 1815150622Srik 1816150622Srik case SERIAL_SETLOOP: 1817150622Srik CX_DEBUG2 (d, ("ioctl: setloop\n")); 1818150622Srik /* Only for superuser! */ 1819164033Srwatson error = priv_check (td, PRIV_DRIVER); 1820150622Srik if (error) 1821150622Srik return error; 1822150622Srik if (c->mode == M_ASYNC) 1823150622Srik return EINVAL; 1824150622Srik s = splhigh (); 1825150622Srik CX_LOCK (bd); 1826150622Srik cx_set_loop (c, *(int*)data); 1827150622Srik CX_UNLOCK (bd); 1828150622Srik splx (s); 1829150622Srik return 0; 1830150622Srik 1831150622Srik case SERIAL_GETDPLL: 1832150622Srik CX_DEBUG2 (d, ("ioctl: getdpll\n")); 1833150622Srik if (c->mode == M_ASYNC) 1834150622Srik return EINVAL; 1835150622Srik s = splhigh (); 1836150622Srik CX_LOCK (bd); 1837150622Srik *(int*)data = cx_get_dpll (c); 1838150622Srik CX_UNLOCK (bd); 1839150622Srik splx (s); 1840150622Srik return 0; 1841150622Srik 1842150622Srik case SERIAL_SETDPLL: 1843150622Srik CX_DEBUG2 (d, ("ioctl: setdpll\n")); 1844150622Srik /* Only for superuser! */ 1845164033Srwatson error = priv_check (td, PRIV_DRIVER); 1846150622Srik if (error) 1847150622Srik return error; 1848150622Srik if (c->mode == M_ASYNC) 1849150622Srik return EINVAL; 1850150622Srik s = splhigh (); 1851150622Srik CX_LOCK (bd); 1852150622Srik cx_set_dpll (c, *(int*)data); 1853150622Srik CX_UNLOCK (bd); 1854150622Srik splx (s); 1855150622Srik return 0; 1856150622Srik 1857150622Srik case SERIAL_GETNRZI: 1858150622Srik CX_DEBUG2 (d, ("ioctl: getnrzi\n")); 1859150622Srik if (c->mode == M_ASYNC) 1860150622Srik return EINVAL; 1861150622Srik s = splhigh (); 1862150622Srik CX_LOCK (bd); 1863150622Srik *(int*)data = cx_get_nrzi (c); 1864150622Srik CX_UNLOCK (bd); 1865150622Srik splx (s); 1866150622Srik return 0; 1867150622Srik 1868150622Srik case SERIAL_SETNRZI: 1869150622Srik CX_DEBUG2 (d, ("ioctl: setnrzi\n")); 1870150622Srik /* Only for superuser! */ 1871164033Srwatson error = priv_check (td, PRIV_DRIVER); 1872150622Srik if (error) 1873150622Srik return error; 1874150622Srik if (c->mode == M_ASYNC) 1875150622Srik return EINVAL; 1876150622Srik s = splhigh (); 1877150622Srik CX_LOCK (bd); 1878150622Srik cx_set_nrzi (c, *(int*)data); 1879150622Srik CX_UNLOCK (bd); 1880150622Srik splx (s); 1881150622Srik return 0; 1882150622Srik 1883150622Srik case SERIAL_GETDEBUG: 1884150622Srik CX_DEBUG2 (d, ("ioctl: getdebug\n")); 1885150622Srik s = splhigh (); 1886150622Srik CX_LOCK (bd); 1887150622Srik *(int*)data = c->debug; 1888150622Srik CX_UNLOCK (bd); 1889150622Srik splx (s); 1890150622Srik return 0; 1891150622Srik 1892150622Srik case SERIAL_SETDEBUG: 1893150622Srik CX_DEBUG2 (d, ("ioctl: setdebug\n")); 1894150622Srik /* Only for superuser! */ 1895164033Srwatson error = priv_check (td, PRIV_DRIVER); 1896150622Srik if (error) 1897150622Srik return error; 1898150622Srik s = splhigh (); 1899150622Srik CX_LOCK (bd); 1900180132Srik#ifndef NETGRAPH 1901180132Srik if (c->mode == M_ASYNC) { 1902180132Srik c->debug = *(int*)data; 1903180132Srik } else { 1904180132Srik /* 1905180132Srik * The debug_shadow is always greater than zero for 1906180132Srik * logic simplicity. For switching debug off the 1907180132Srik * IFF_DEBUG is responsible (for !M_ASYNC mode). 1908180132Srik */ 1909180132Srik c->debug_shadow = (*(int*)data) ? (*(int*)data) : 1; 1910180132Srik if (d->ifp->if_flags & IFF_DEBUG) 1911180132Srik c->debug = c->debug_shadow; 1912180132Srik } 1913180132Srik#else 1914150622Srik c->debug = *(int*)data; 1915180132Srik#endif 1916150622Srik CX_UNLOCK (bd); 1917150622Srik splx (s); 1918150622Srik return 0; 1919150622Srik } 1920150622Srik 1921150622Srik switch (cmd) { 1922150622Srik case TIOCSDTR: /* Set DTR */ 1923150622Srik CX_DEBUG2 (d, ("ioctl: tiocsdtr\n")); 1924150622Srik s = splhigh (); 1925150622Srik CX_LOCK (bd); 1926150622Srik cx_set_dtr (c, 1); 1927150622Srik CX_UNLOCK (bd); 1928150622Srik splx (s); 1929150622Srik return 0; 1930150622Srik 1931150622Srik case TIOCCDTR: /* Clear DTR */ 1932150622Srik CX_DEBUG2 (d, ("ioctl: tioccdtr\n")); 1933150622Srik s = splhigh (); 1934150622Srik CX_LOCK (bd); 1935150622Srik cx_set_dtr (c, 0); 1936150622Srik CX_UNLOCK (bd); 1937150622Srik splx (s); 1938150622Srik return 0; 1939150622Srik 1940150622Srik case TIOCMSET: /* Set DTR/RTS */ 1941150622Srik CX_DEBUG2 (d, ("ioctl: tiocmset\n")); 1942150622Srik s = splhigh (); 1943150622Srik CX_LOCK (bd); 1944150622Srik cx_set_dtr (c, (*(int*)data & TIOCM_DTR) ? 1 : 0); 1945150622Srik cx_set_rts (c, (*(int*)data & TIOCM_RTS) ? 1 : 0); 1946150622Srik CX_UNLOCK (bd); 1947150622Srik splx (s); 1948150622Srik return 0; 1949150622Srik 1950150622Srik case TIOCMBIS: /* Add DTR/RTS */ 1951150622Srik CX_DEBUG2 (d, ("ioctl: tiocmbis\n")); 1952150622Srik s = splhigh (); 1953150622Srik CX_LOCK (bd); 1954150622Srik if (*(int*)data & TIOCM_DTR) cx_set_dtr (c, 1); 1955150622Srik if (*(int*)data & TIOCM_RTS) cx_set_rts (c, 1); 1956150622Srik CX_UNLOCK (bd); 1957150622Srik splx (s); 1958150622Srik return 0; 1959150622Srik 1960150622Srik case TIOCMBIC: /* Clear DTR/RTS */ 1961150622Srik CX_DEBUG2 (d, ("ioctl: tiocmbic\n")); 1962150622Srik s = splhigh (); 1963150622Srik CX_LOCK (bd); 1964150622Srik if (*(int*)data & TIOCM_DTR) cx_set_dtr (c, 0); 1965150622Srik if (*(int*)data & TIOCM_RTS) cx_set_rts (c, 0); 1966150622Srik CX_UNLOCK (bd); 1967150622Srik splx (s); 1968150622Srik return 0; 1969150622Srik 1970150622Srik case TIOCMGET: /* Get modem status */ 1971150622Srik CX_DEBUG2 (d, ("ioctl: tiocmget\n")); 1972150622Srik *(int*)data = cx_modem_status (d); 1973150622Srik return 0; 1974150622Srik 1975150622Srik } 1976150622Srik 1977150622Srik CX_DEBUG2 (d, ("ioctl: 0x%lx\n", cmd)); 1978150622Srik return ENOTTY; 1979150622Srik} 1980150622Srik 1981123120Simpvoid cx_softintr (void *unused) 1982123120Simp{ 1983123120Simp drv_t *d; 1984138823Srik bdrv_t *bd; 1985123120Simp async_q *q; 1986123120Simp int i, s, ic, k; 1987123120Simp while (MY_SOFT_INTR) { 1988123120Simp MY_SOFT_INTR = 0; 1989123120Simp for (i=0; i<NCX*NCHAN; ++i) { 1990123120Simp d = channel [i]; 1991123120Simp if (!d || !d->chan || d->chan->type == T_NONE 1992130240Srik || d->chan->mode != M_ASYNC || !d->tty 1993130240Srik || !d->tty->t_dev) 1994123120Simp continue; 1995138823Srik bd = d->board->sys; 1996123120Simp s = splhigh (); 1997138823Srik CX_LOCK (bd); 1998123120Simp if (d->intr_action & CX_READ) { 1999123120Simp q = &(d->aqueue); 2000130240Srik if (d->tty->t_state & TS_CAN_BYPASS_L_RINT) { 2001123120Simp k = AQ_GSZ(q); 2002130240Srik if (d->tty->t_rawq.c_cc + k > 2003130240Srik d->tty->t_ihiwat 2004130240Srik && (d->tty->t_cflag & CRTS_IFLOW 2005130240Srik || d->tty->t_iflag & IXOFF) 2006130240Srik && !(d->tty->t_state & TS_TBLOCK)) 2007130240Srik ttyblock(d->tty); 2008130240Srik d->tty->t_rawcc += k; 2009123120Simp while (k>0) { 2010123120Simp k--; 2011123120Simp AQ_POP (q, ic); 2012138823Srik CX_UNLOCK (bd); 2013123120Simp splx (s); 2014130240Srik putc (ic, &d->tty->t_rawq); 2015123120Simp s = splhigh (); 2016138823Srik CX_LOCK (bd); 2017123120Simp } 2018130240Srik ttwakeup(d->tty); 2019130240Srik if (d->tty->t_state & TS_TTSTOP 2020130240Srik && (d->tty->t_iflag & IXANY 2021130240Srik || d->tty->t_cc[VSTART] == 2022130240Srik d->tty->t_cc[VSTOP])) { 2023130240Srik d->tty->t_state &= ~TS_TTSTOP; 2024130240Srik d->tty->t_lflag &= ~FLUSHO; 2025123120Simp d->intr_action |= CX_WRITE; 2026123120Simp } 2027123120Simp } else { 2028123120Simp while (q->end != q->beg) { 2029123120Simp AQ_POP (q, ic); 2030138823Srik CX_UNLOCK (bd); 2031123120Simp splx (s); 2032130240Srik ttyld_rint (d->tty, ic); 2033123120Simp s = splhigh (); 2034138823Srik CX_LOCK (bd); 2035123120Simp } 2036123120Simp } 2037123120Simp d->intr_action &= ~CX_READ; 2038123120Simp } 2039123120Simp splx (s); 2040138823Srik CX_UNLOCK (bd); 2041123120Simp 2042123120Simp s = splhigh (); 2043138823Srik CX_LOCK (bd); 2044123120Simp if (d->intr_action & CX_WRITE) { 2045130240Srik if (d->tty->t_line) 2046130240Srik ttyld_start (d->tty); 2047123120Simp else 2048130240Srik cx_oproc (d->tty); 2049123120Simp d->intr_action &= ~CX_WRITE; 2050123120Simp } 2051138823Srik CX_UNLOCK (bd); 2052123120Simp splx (s); 2053123120Simp 2054123120Simp } 2055123120Simp } 2056123120Simp} 2057123120Simp 2058123120Simp/* 2059123120Simp * Fill transmitter buffer with data. 2060123120Simp */ 2061123120Simpstatic void cx_oproc (struct tty *tp) 2062123120Simp{ 2063136480Sphk int s, k; 2064136480Sphk drv_t *d; 2065138823Srik bdrv_t *bd; 2066123120Simp static u_char buf[DMABUFSZ]; 2067123120Simp u_char *p; 2068123120Simp u_short len = 0, sublen = 0; 2069123120Simp 2070138823Srik d = tp->t_sc; 2071138823Srik bd = d->board->sys; 2072136480Sphk 2073123120Simp CX_DEBUG2 (d, ("cx_oproc\n")); 2074138823Srik 2075138823Srik s = splhigh (); 2076138823Srik CX_LOCK (bd); 2077138823Srik 2078123120Simp if (tp->t_cflag & CRTSCTS && (tp->t_state & TS_TBLOCK) && d->chan->rts) 2079123120Simp cx_set_rts (d->chan, 0); 2080123120Simp else if (tp->t_cflag & CRTSCTS && ! (tp->t_state & TS_TBLOCK) && ! d->chan->rts) 2081123120Simp cx_set_rts (d->chan, 1); 2082123120Simp 2083123120Simp if (! (tp->t_state & (TS_TIMEOUT | TS_TTSTOP))) { 2084123120Simp /* Start transmitter. */ 2085123120Simp cx_enable_transmit (d->chan, 1); 2086123120Simp 2087123120Simp /* Is it busy? */ 2088123120Simp if (! cx_buf_free (d->chan)) { 2089123120Simp tp->t_state |= TS_BUSY; 2090138823Srik CX_UNLOCK (bd); 2091123120Simp splx (s); 2092123120Simp return; 2093123120Simp } 2094123120Simp if (tp->t_iflag & IXOFF) { 2095123120Simp p = (buf + (DMABUFSZ/2)); 2096123120Simp sublen = q_to_b (&tp->t_outq, p, (DMABUFSZ/2)); 2097123120Simp k = sublen; 2098123120Simp while (k--) { 2099123120Simp /* Send XON/XOFF out of band. */ 2100123120Simp if (*p == tp->t_cc[VSTOP]) { 2101123120Simp cx_xflow_ctl (d->chan, 0); 2102123120Simp p++; 2103123120Simp continue; 2104123120Simp } 2105123120Simp if (*p == tp->t_cc[VSTART]) { 2106123120Simp cx_xflow_ctl (d->chan, 1); 2107123120Simp p++; 2108123120Simp continue; 2109123120Simp } 2110123120Simp buf[len] = *p; 2111123120Simp len++; 2112123120Simp p++; 2113123120Simp } 2114123120Simp } else { 2115123120Simp p = buf; 2116123120Simp len = q_to_b (&tp->t_outq, p, (DMABUFSZ/2)); 2117123120Simp } 2118123120Simp if (len) { 2119123120Simp cx_send_packet (d->chan, buf, len, 0); 2120123120Simp tp->t_state |= TS_BUSY; 2121123120Simp d->atimeout = 10; 2122123120Simp CX_DEBUG2 (d, ("out %d bytes\n", len)); 2123123120Simp } 2124123120Simp } 2125123120Simp ttwwakeup (tp); 2126138823Srik CX_UNLOCK (bd); 2127123120Simp splx (s); 2128123120Simp} 2129123120Simp 2130123120Simpstatic int cx_param (struct tty *tp, struct termios *t) 2131123120Simp{ 2132136480Sphk drv_t *d; 2133138823Srik bdrv_t *bd; 2134123120Simp int s, bits, parity; 2135123120Simp 2136136480Sphk d = tp->t_sc; 2137138823Srik bd = d->board->sys; 2138138823Srik 2139123120Simp s = splhigh (); 2140138823Srik CX_LOCK (bd); 2141123120Simp if (t->c_ospeed == 0) { 2142123120Simp /* Clear DTR and RTS. */ 2143123120Simp cx_set_dtr (d->chan, 0); 2144138823Srik CX_UNLOCK (bd); 2145123120Simp splx (s); 2146123120Simp CX_DEBUG2 (d, ("cx_param (hangup)\n")); 2147123120Simp return 0; 2148123120Simp } 2149123120Simp CX_DEBUG2 (d, ("cx_param\n")); 2150123120Simp 2151123120Simp /* Check requested parameters. */ 2152123120Simp if (t->c_ospeed < 300 || t->c_ospeed > 256*1024) { 2153138823Srik CX_UNLOCK (bd); 2154123120Simp splx (s); 2155133644Srik return EINVAL; 2156123120Simp } 2157123120Simp if (t->c_ispeed && (t->c_ispeed < 300 || t->c_ispeed > 256*1024)) { 2158138823Srik CX_UNLOCK (bd); 2159123120Simp splx (s); 2160133644Srik return EINVAL; 2161123120Simp } 2162123120Simp 2163123120Simp /* And copy them to tty and channel structures. */ 2164123120Simp tp->t_ispeed = t->c_ispeed = tp->t_ospeed = t->c_ospeed; 2165123120Simp tp->t_cflag = t->c_cflag; 2166123120Simp 2167123120Simp /* Set character length and parity mode. */ 2168123120Simp switch (t->c_cflag & CSIZE) { 2169123120Simp default: 2170123120Simp case CS8: bits = 8; break; 2171123120Simp case CS7: bits = 7; break; 2172123120Simp case CS6: bits = 6; break; 2173123120Simp case CS5: bits = 5; break; 2174123120Simp } 2175123120Simp 2176123120Simp parity = ((t->c_cflag & PARENB) ? 1 : 0) * 2177123120Simp (1 + ((t->c_cflag & PARODD) ? 0 : 1)); 2178123120Simp 2179123120Simp /* Set current channel number. */ 2180123120Simp if (! d->chan->dtr) 2181123120Simp cx_set_dtr (d->chan, 1); 2182123120Simp 2183130240Srik ttyldoptim (tp); 2184123120Simp cx_set_async_param (d->chan, t->c_ospeed, bits, parity, (t->c_cflag & CSTOPB), 2185123120Simp !(t->c_cflag & PARENB), (t->c_cflag & CRTSCTS), 2186123120Simp (t->c_iflag & IXON), (t->c_iflag & IXANY), 2187123120Simp t->c_cc[VSTART], t->c_cc[VSTOP]); 2188138823Srik CX_UNLOCK (bd); 2189123120Simp splx (s); 2190123120Simp return 0; 2191123120Simp} 2192123120Simp 2193123120Simp/* 2194123120Simp * Stop output on a line 2195123120Simp */ 2196123120Simpstatic void cx_stop (struct tty *tp, int flag) 2197123120Simp{ 2198136480Sphk drv_t *d; 2199138823Srik bdrv_t *bd; 2200123120Simp int s; 2201123120Simp 2202136480Sphk d = tp->t_sc; 2203138823Srik bd = d->board->sys; 2204138823Srik 2205123120Simp s = splhigh (); 2206138823Srik CX_LOCK (bd); 2207123120Simp if (tp->t_state & TS_BUSY) { 2208123120Simp /* Stop transmitter */ 2209123120Simp CX_DEBUG2 (d, ("cx_stop\n")); 2210123120Simp cx_transmitter_ctl (d->chan, 0); 2211123120Simp } 2212138823Srik CX_UNLOCK (bd); 2213123120Simp splx (s); 2214123120Simp} 2215123120Simp 2216123120Simp/* 2217123120Simp * Process the (delayed) carrier signal setup. 2218123120Simp */ 2219123120Simpstatic void cx_carrier (void *arg) 2220123120Simp{ 2221123120Simp drv_t *d = arg; 2222138823Srik bdrv_t *bd = d->board->sys; 2223123120Simp cx_chan_t *c = d->chan; 2224123120Simp int s, cd; 2225123120Simp 2226123120Simp s = splhigh (); 2227138823Srik CX_LOCK (bd); 2228123120Simp cd = cx_get_cd (c); 2229123120Simp if (d->cd != cd) { 2230123120Simp if (cd) { 2231123120Simp CX_DEBUG (d, ("carrier on\n")); 2232123120Simp d->cd = 1; 2233138823Srik CX_UNLOCK (bd); 2234123120Simp splx (s); 2235130240Srik if (d->tty) 2236130240Srik ttyld_modem(d->tty, 1); 2237123120Simp } else { 2238123120Simp CX_DEBUG (d, ("carrier loss\n")); 2239123120Simp d->cd = 0; 2240138823Srik CX_UNLOCK (bd); 2241123120Simp splx (s); 2242130240Srik if (d->tty) 2243130240Srik ttyld_modem(d->tty, 0); 2244123120Simp } 2245147859Srik } else { 2246147859Srik CX_UNLOCK (bd); 2247147859Srik splx (s); 2248123120Simp } 2249123120Simp} 2250123120Simp 2251123120Simp/* 2252123120Simp * Modem signal callback function. 2253123120Simp */ 2254123120Simpstatic void cx_modem (cx_chan_t *c) 2255123120Simp{ 2256123120Simp drv_t *d = c->sys; 2257123120Simp 2258123120Simp if (!d || c->mode != M_ASYNC) 2259123120Simp return; 2260123120Simp /* Handle carrier detect/loss. */ 2261123120Simp /* Carrier changed - delay processing DCD for a while 2262123120Simp * to give both sides some time to initialize. */ 2263138823Srik callout_reset (&d->dcd_timeout_handle, hz/2, cx_carrier, d); 2264123120Simp} 2265123120Simp 2266123120Simp#ifdef NETGRAPH 2267123120Simpstatic int ng_cx_constructor (node_p node) 2268123120Simp{ 2269123120Simp drv_t *d = NG_NODE_PRIVATE (node); 2270123120Simp CX_DEBUG (d, ("Constructor\n")); 2271123120Simp return EINVAL; 2272123120Simp} 2273123120Simp 2274123120Simpstatic int ng_cx_newhook (node_p node, hook_p hook, const char *name) 2275123120Simp{ 2276123120Simp int s; 2277123120Simp drv_t *d = NG_NODE_PRIVATE (node); 2278138823Srik bdrv_t *bd = d->board->sys; 2279123120Simp 2280123120Simp if (d->chan->mode == M_ASYNC) 2281123120Simp return EINVAL; 2282123120Simp 2283123120Simp /* Attach debug hook */ 2284123120Simp if (strcmp (name, NG_CX_HOOK_DEBUG) == 0) { 2285123120Simp NG_HOOK_SET_PRIVATE (hook, NULL); 2286123120Simp d->debug_hook = hook; 2287123120Simp return 0; 2288123120Simp } 2289123120Simp 2290123120Simp /* Check for raw hook */ 2291123120Simp if (strcmp (name, NG_CX_HOOK_RAW) != 0) 2292123120Simp return EINVAL; 2293123120Simp 2294123120Simp NG_HOOK_SET_PRIVATE (hook, d); 2295123120Simp d->hook = hook; 2296123120Simp s = splhigh (); 2297138823Srik CX_LOCK (bd); 2298123120Simp cx_up (d); 2299138823Srik CX_UNLOCK (bd); 2300123120Simp splx (s); 2301123120Simp return 0; 2302123120Simp} 2303123120Simp 2304123120Simpstatic int print_modems (char *s, cx_chan_t *c, int need_header) 2305123120Simp{ 2306123120Simp int status = cx_modem_status (c->sys); 2307123120Simp int length = 0; 2308123120Simp 2309123120Simp if (need_header) 2310123120Simp length += sprintf (s + length, " LE DTR DSR RTS CTS CD\n"); 2311123120Simp length += sprintf (s + length, "%4s %4s %4s %4s %4s %4s\n", 2312123120Simp status & TIOCM_LE ? "On" : "-", 2313123120Simp status & TIOCM_DTR ? "On" : "-", 2314123120Simp status & TIOCM_DSR ? "On" : "-", 2315123120Simp status & TIOCM_RTS ? "On" : "-", 2316123120Simp status & TIOCM_CTS ? "On" : "-", 2317123120Simp status & TIOCM_CD ? "On" : "-"); 2318123120Simp return length; 2319123120Simp} 2320123120Simp 2321123120Simpstatic int print_stats (char *s, cx_chan_t *c, int need_header) 2322123120Simp{ 2323123120Simp int length = 0; 2324123120Simp 2325123120Simp if (need_header) 2326123120Simp length += sprintf (s + length, " Rintr Tintr Mintr Ibytes Ipkts Ierrs Obytes Opkts Oerrs\n"); 2327123120Simp length += sprintf (s + length, "%7ld %7ld %7ld %8ld %7ld %7ld %8ld %7ld %7ld\n", 2328123120Simp c->rintr, c->tintr, c->mintr, c->ibytes, c->ipkts, 2329123120Simp c->ierrs, c->obytes, c->opkts, c->oerrs); 2330123120Simp return length; 2331123120Simp} 2332123120Simp 2333123120Simpstatic int print_chan (char *s, cx_chan_t *c) 2334123120Simp{ 2335123120Simp drv_t *d = c->sys; 2336123120Simp int length = 0; 2337123120Simp 2338123120Simp length += sprintf (s + length, "cx%d", c->board->num * NCHAN + c->num); 2339123120Simp if (d->chan->debug) 2340123120Simp length += sprintf (s + length, " debug=%d", d->chan->debug); 2341123120Simp 2342123120Simp if (cx_get_baud (c)) 2343123120Simp length += sprintf (s + length, " %ld", cx_get_baud (c)); 2344123120Simp else 2345123120Simp length += sprintf (s + length, " extclock"); 2346123120Simp 2347123120Simp if (c->mode == M_HDLC) { 2348123120Simp length += sprintf (s + length, " dpll=%s", cx_get_dpll (c) ? "on" : "off"); 2349123120Simp length += sprintf (s + length, " nrzi=%s", cx_get_nrzi (c) ? "on" : "off"); 2350123120Simp } 2351123120Simp 2352123120Simp length += sprintf (s + length, " loop=%s", cx_get_loop (c) ? "on\n" : "off\n"); 2353123120Simp return length; 2354123120Simp} 2355123120Simp 2356123120Simpstatic int ng_cx_rcvmsg (node_p node, item_p item, hook_p lasthook) 2357123120Simp{ 2358123120Simp drv_t *d = NG_NODE_PRIVATE (node); 2359123120Simp struct ng_mesg *msg; 2360123120Simp struct ng_mesg *resp = NULL; 2361123120Simp int error = 0; 2362123120Simp 2363123120Simp if (!d) 2364123120Simp return EINVAL; 2365123120Simp 2366123120Simp CX_DEBUG (d, ("Rcvmsg\n")); 2367123120Simp NGI_GET_MSG (item, msg); 2368123120Simp switch (msg->header.typecookie) { 2369123120Simp default: 2370123120Simp error = EINVAL; 2371123120Simp break; 2372123120Simp 2373123120Simp case NGM_CX_COOKIE: 2374123120Simp printf ("Don't forget to implement\n"); 2375123120Simp error = EINVAL; 2376123120Simp break; 2377123120Simp 2378123120Simp case NGM_GENERIC_COOKIE: 2379123120Simp switch (msg->header.cmd) { 2380123120Simp default: 2381123120Simp error = EINVAL; 2382123120Simp break; 2383123120Simp 2384123120Simp case NGM_TEXT_STATUS: { 2385123120Simp char *s; 2386123120Simp int l = 0; 2387123120Simp int dl = sizeof (struct ng_mesg) + 730; 2388123120Simp 2389123120Simp NG_MKRESPONSE (resp, msg, dl, M_NOWAIT); 2390123120Simp if (! resp) { 2391123120Simp error = ENOMEM; 2392123120Simp break; 2393123120Simp } 2394123120Simp bzero (resp, dl); 2395123120Simp s = (resp)->data; 2396123120Simp l += print_chan (s + l, d->chan); 2397123120Simp l += print_stats (s + l, d->chan, 1); 2398123120Simp l += print_modems (s + l, d->chan, 1); 2399193813Simp strncpy ((resp)->header.cmdstr, "status", NG_CMDSTRSIZ); 2400123120Simp } 2401123120Simp break; 2402123120Simp } 2403123120Simp break; 2404123120Simp } 2405123120Simp NG_RESPOND_MSG (error, node, item, resp); 2406123120Simp NG_FREE_MSG (msg); 2407123120Simp return error; 2408123120Simp} 2409123120Simp 2410123120Simpstatic int ng_cx_rcvdata (hook_p hook, item_p item) 2411123120Simp{ 2412123120Simp drv_t *d = NG_NODE_PRIVATE (NG_HOOK_NODE(hook)); 2413123120Simp struct mbuf *m; 2414131108Sjulian struct ng_tag_prio *ptag; 2415138823Srik bdrv_t *bd; 2416123120Simp struct ifqueue *q; 2417123120Simp int s; 2418123120Simp 2419123120Simp NGI_GET_M (item, m); 2420123120Simp NG_FREE_ITEM (item); 2421123120Simp if (! NG_HOOK_PRIVATE (hook) || ! d) { 2422123120Simp NG_FREE_M (m); 2423123120Simp return ENETDOWN; 2424123120Simp } 2425131108Sjulian 2426138823Srik bd = d->board->sys; 2427131108Sjulian /* Check for high priority data */ 2428131108Sjulian if ((ptag = (struct ng_tag_prio *)m_tag_locate(m, NGM_GENERIC_COOKIE, 2429131108Sjulian NG_TAG_PRIO, NULL)) != NULL && (ptag->priority > NG_PRIO_CUTOFF) ) 2430131108Sjulian q = &d->hi_queue; 2431131108Sjulian else 2432131108Sjulian q = &d->lo_queue; 2433131108Sjulian 2434123120Simp s = splhigh (); 2435138823Srik CX_LOCK (bd); 2436123120Simp IF_LOCK (q); 2437123120Simp if (_IF_QFULL (q)) { 2438123120Simp _IF_DROP (q); 2439123120Simp IF_UNLOCK (q); 2440138823Srik CX_UNLOCK (bd); 2441123120Simp splx (s); 2442123120Simp NG_FREE_M (m); 2443123120Simp return ENOBUFS; 2444123120Simp } 2445123120Simp _IF_ENQUEUE (q, m); 2446123120Simp IF_UNLOCK (q); 2447123120Simp cx_start (d); 2448138823Srik CX_UNLOCK (bd); 2449123120Simp splx (s); 2450123120Simp return 0; 2451123120Simp} 2452123120Simp 2453123120Simpstatic int ng_cx_rmnode (node_p node) 2454123120Simp{ 2455123120Simp drv_t *d = NG_NODE_PRIVATE (node); 2456138823Srik bdrv_t *bd; 2457123120Simp 2458123120Simp CX_DEBUG (d, ("Rmnode\n")); 2459123120Simp if (d && d->running) { 2460123120Simp int s = splhigh (); 2461138823Srik bd = d->board->sys; 2462138823Srik CX_LOCK (bd); 2463123120Simp cx_down (d); 2464138823Srik CX_UNLOCK (bd); 2465123120Simp splx (s); 2466123120Simp } 2467123120Simp#ifdef KLD_MODULE 2468132464Sjulian if (node->nd_flags & NGF_REALLY_DIE) { 2469123120Simp NG_NODE_SET_PRIVATE (node, NULL); 2470123120Simp NG_NODE_UNREF (node); 2471123120Simp } 2472132464Sjulian NG_NODE_REVIVE(node); /* Persistant node */ 2473123120Simp#endif 2474123120Simp return 0; 2475123120Simp} 2476123120Simp 2477123120Simpstatic int ng_cx_connect (hook_p hook) 2478123120Simp{ 2479123120Simp drv_t *d = NG_NODE_PRIVATE (NG_HOOK_NODE (hook)); 2480123120Simp 2481199407Sjhb callout_reset (&d->timeout_handle, hz, cx_watchdog_timer, d); 2482123120Simp return 0; 2483123120Simp} 2484123120Simp 2485123120Simpstatic int ng_cx_disconnect (hook_p hook) 2486123120Simp{ 2487123120Simp drv_t *d = NG_NODE_PRIVATE (NG_HOOK_NODE (hook)); 2488138823Srik bdrv_t *bd = d->board->sys; 2489123120Simp int s; 2490123120Simp 2491123120Simp s = splhigh (); 2492138823Srik CX_LOCK (bd); 2493123120Simp if (NG_HOOK_PRIVATE (hook)) 2494123120Simp cx_down (d); 2495138823Srik CX_UNLOCK (bd); 2496123120Simp splx (s); 2497138823Srik /* If we were wait it than it reasserted now, just stop it. */ 2498138823Srik if (!callout_drain (&d->timeout_handle)) 2499138823Srik callout_stop (&d->timeout_handle); 2500123120Simp return 0; 2501123120Simp} 2502123120Simp#endif /*NETGRAPH*/ 2503123120Simp 2504123120Simpstatic int cx_modevent (module_t mod, int type, void *unused) 2505123120Simp{ 2506123120Simp static int load_count = 0; 2507123120Simp 2508123120Simp switch (type) { 2509123120Simp case MOD_LOAD: 2510138823Srik#ifdef NETGRAPH 2511123120Simp if (ng_newtype (&typestruct)) 2512123120Simp printf ("Failed to register ng_cx\n"); 2513123120Simp#endif 2514123120Simp ++load_count; 2515138823Srik 2516188768Srwatson callout_init (&timeout_handle, CALLOUT_MPSAFE); 2517138823Srik callout_reset (&timeout_handle, hz*5, cx_timeout, 0); 2518123120Simp /* Software interrupt. */ 2519151690Sru swi_add(&tty_intr_event, "cx", cx_softintr, NULL, SWI_TTY, 2520188768Srwatson INTR_MPSAFE, &cx_fast_ih); 2521123120Simp break; 2522123120Simp case MOD_UNLOAD: 2523123120Simp if (load_count == 1) { 2524123120Simp printf ("Removing device entry for Sigma\n"); 2525138823Srik#ifdef NETGRAPH 2526123120Simp ng_rmtype (&typestruct); 2527123120Simp#endif 2528123120Simp } 2529138823Srik /* If we were wait it than it reasserted now, just stop it. */ 2530138823Srik if (!callout_drain (&timeout_handle)) 2531138823Srik callout_stop (&timeout_handle); 2532151700Sjhb swi_remove (cx_fast_ih); 2533123120Simp --load_count; 2534123120Simp break; 2535123120Simp case MOD_SHUTDOWN: 2536123120Simp break; 2537123120Simp } 2538123120Simp return 0; 2539123120Simp} 2540123120Simp 2541123120Simp#ifdef NETGRAPH 2542123120Simpstatic struct ng_type typestruct = { 2543129837Srik .version = NG_ABI_VERSION, 2544129837Srik .name = NG_CX_NODE_TYPE, 2545129837Srik .constructor = ng_cx_constructor, 2546129837Srik .rcvmsg = ng_cx_rcvmsg, 2547129837Srik .shutdown = ng_cx_rmnode, 2548129837Srik .newhook = ng_cx_newhook, 2549129837Srik .connect = ng_cx_connect, 2550129837Srik .rcvdata = ng_cx_rcvdata, 2551130985Srik .disconnect = ng_cx_disconnect, 2552123120Simp}; 2553123120Simp#endif /*NETGRAPH*/ 2554123120Simp 2555123120Simp#ifdef NETGRAPH 2556123120SimpMODULE_DEPEND (ng_cx, netgraph, NG_ABI_VERSION, NG_ABI_VERSION, NG_ABI_VERSION); 2557123120Simp#else 2558123120SimpMODULE_DEPEND (isa_cx, sppp, 1, 1, 1); 2559123120Simp#endif 2560123120SimpDRIVER_MODULE (cx, isa, cx_isa_driver, cx_devclass, cx_modevent, NULL); 2561138823SrikMODULE_VERSION (cx, 1); 2562