diff options
Diffstat (limited to 'sys/dev/dgb/dgm.c')
| -rw-r--r-- | sys/dev/dgb/dgm.c | 2205 |
1 files changed, 0 insertions, 2205 deletions
diff --git a/sys/dev/dgb/dgm.c b/sys/dev/dgb/dgm.c deleted file mode 100644 index 45152ac..0000000 --- a/sys/dev/dgb/dgm.c +++ /dev/null @@ -1,2205 +0,0 @@ -/*- - * $FreeBSD$ - * - * This driver and the associated header files support the ISA PC/Xem - * Digiboards. Its evolutionary roots are described below. - * Jack O'Neill <jack@diamond.xtalwind.net> - * - * Digiboard driver. - * - * Stage 1. "Better than nothing". - * Stage 2. "Gee, it works!". - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification, immediately at the beginning of the file. - * 2. Redistributions of binary code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification, in the accompanying documentation. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR - * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * Written by Sergey Babkin, - * Joint Stock Commercial Bank "Chelindbank" - * (Chelyabinsk, Russia) - * babkin@freebsd.org - * - * Assorted hacks to make it more functional and working under 3.0-current. - * Fixed broken routines to prevent processes hanging on closed (thanks - * to Bruce for his patience and assistance). Thanks also to Maxim Bolotin - * <max@run.net> for his patches which did most of the work to get this - * running under 2.2/3.0-current. - * Implemented ioctls: TIOCMSDTRWAIT, TIOCMGDTRWAIT, TIOCTIMESTAMP & - * TIOCDCDTIMESTAMP. - * Sysctl debug flag is now a bitflag, to filter noise during debugging. - * David L. Nugent <davidn@blaze.net.au> - * - * New-busification by Brian Somers <brian@Awfulhak.org> - * - * There was a copyright confusion: I thought that having read the - * GLPed drivers makes me mentally contaminated but in fact it does - * not. Since the Linux driver by Troy De Jongh <troyd@digibd.com> or - * <troyd@skypoint.com> was used only to learn the Digi's interface, - * I've returned this driver to a BSD-style license. I tried to contact - * all the contributors and those who replied agreed with license - * change. If you did any contribution when the driver was GPLed and do - * not agree with the BSD-style re-licensing please contact me. - * -SB - */ - -/* How often to run dgmpoll */ -#define POLLSPERSEC 25 - -/* How many charactes can we write to input tty rawq */ -#define DGB_IBUFSIZE (TTYHOG - 100) - -/* the overall number of ports controlled by this driver */ - -#include <sys/param.h> - -#include <sys/systm.h> -#include <sys/conf.h> -#include <sys/dkstat.h> -#include <sys/fcntl.h> -#include <sys/kernel.h> -#include <sys/malloc.h> -#include <sys/sysctl.h> -#include <sys/tty.h> -#include <sys/bus.h> -#include <sys/kobj.h> -#include <sys/bus.h> -#include <machine/bus.h> -#include <sys/rman.h> -#include <machine/resource.h> - -#include <vm/vm.h> -#include <vm/pmap.h> - -#include <dev/dgb/dgmfep.h> -#include <dev/dgb/dgmbios.h> -#include <dev/dgb/dgmreg.h> - -#define CALLOUT_MASK 0x40000 -#define CONTROL_MASK 0xC0 -#define CONTROL_INIT_STATE 0x40 -#define CONTROL_LOCK_STATE 0x80 -#define UNIT_MASK 0x30000 -#define PORT_MASK 0x3F -#define DEV_TO_UNIT(dev) (MINOR_TO_UNIT(minor(dev))) -#define MINOR_MAGIC_MASK (CALLOUT_MASK | CONTROL_MASK) -#define MINOR_TO_UNIT(mynor) (((mynor) & UNIT_MASK) >> 16) -#define MINOR_TO_PORT(mynor) ((mynor) & PORT_MASK) -#define IO_SIZE 0x04 -#define MEM_SIZE 0x8000 - -struct dgm_softc; - -/* digiboard port structure */ -struct dgm_p { - unsigned enabled : 1; - - struct dgm_softc *sc; /* parent softc */ - u_char pnum; /* port number */ - u_char omodem; /* FEP output modem status */ - u_char imodem; /* FEP input modem status */ - u_char modemfake; /* Modem values to be forced */ - u_char modem; /* Force values */ - u_char hflow; - u_char dsr; - u_char dcd; - u_char stopc; - u_char startc; - u_char stopca; - u_char startca; - u_char fepstopc; - u_char fepstartc; - u_char fepstopca; - u_char fepstartca; - u_char txwin; - u_char rxwin; - ushort fepiflag; - ushort fepcflag; - ushort fepoflag; - ushort txbufhead; - ushort txbufsize; - ushort rxbufhead; - ushort rxbufsize; - int close_delay; - u_char *txptr; - u_char *rxptr; - volatile struct board_chan *brdchan; - struct tty *tty; - - u_char active_out; /* nonzero if the callout device is open */ - u_int wopeners; /* # processes waiting for DCD in open() */ - - /* Initial state. */ - struct termios it_in; /* should be in struct tty */ - struct termios it_out; - - /* Lock state. */ - struct termios lt_in; /* should be in struct tty */ - struct termios lt_out; - - unsigned do_timestamp : 1; - unsigned do_dcd_timestamp : 1; - struct timeval timestamp; - struct timeval dcd_timestamp; - - /* flags of state, are used in sleep() too */ - u_char closing; /* port is being closed now */ - u_char draining; /* port is being drained now */ - u_char used; /* port is being used now */ - u_char mustdrain; /* data must be waited to drain in dgmparam() */ -}; - -/* Digiboard per-board structure */ -struct dgm_softc { - /* struct board_info */ - unsigned enabled : 1; - u_char unit; /* unit number */ - u_char type; /* type of card: PCXE, PCXI, PCXEVE */ - u_char altpin; /* do we need alternate pin setting ? */ - int numports; /* number of ports on card */ - u_long port; /* I/O port */ - u_char *vmem; /* virtual memory address */ - u_long pmem; /* physical memory address */ - int mem_seg; /* internal memory segment */ - struct dgm_p *ports; /* ptr to array of port descriptors */ - struct tty *ttys; /* ptr to array of TTY structures */ - volatile struct global_data *mailbox; - struct resource *io_res; - struct resource *mem_res; - int iorid; - int mrid; - struct callout_handle toh; /* poll timeout handle */ -}; - -static void dgmpoll(void *); -static int dgmprobe(device_t); -static int dgmattach(device_t); -static int dgmdetach(device_t); -static int dgmshutdown(device_t); -static void fepcmd(struct dgm_p *, unsigned, unsigned, unsigned, unsigned, - unsigned); -static void dgmstart(struct tty *); -static void dgmstop(struct tty *, int); -static int dgmparam(struct tty *, struct termios *); -static void dgmhardclose(struct dgm_p *); -static void dgm_drain_or_flush(struct dgm_p *); -static int dgmdrain(struct dgm_p *); -static void dgm_pause(void *); -static void wakeflush(void *); -static void disc_optim(struct tty *, struct termios *); - -static d_open_t dgmopen; -static d_close_t dgmclose; -static d_ioctl_t dgmioctl; - -static device_method_t dgmmethods[] = { - /* Device interface */ - DEVMETHOD(device_probe, dgmprobe), - DEVMETHOD(device_attach, dgmattach), - DEVMETHOD(device_detach, dgmdetach), - DEVMETHOD(device_shutdown, dgmshutdown), - { 0, 0 } -}; - -static driver_t dgmdriver = { - "dgm", - dgmmethods, - sizeof (struct dgm_softc), -}; - -static devclass_t dgmdevclass; - -#define CDEV_MAJOR 101 -static struct cdevsw dgm_cdevsw = { - /* open */ dgmopen, - /* close */ dgmclose, - /* read */ ttyread, - /* write */ ttywrite, - /* ioctl */ dgmioctl, - /* poll */ ttypoll, - /* mmap */ nommap, - /* strategy */ nostrategy, - /* name */ "dgm", - /* maj */ CDEV_MAJOR, - /* dump */ nodump, - /* psize */ nopsize, - /* flags */ D_TTY | D_KQFILTER, - /* kqfilter */ ttykqfilter, -}; - -static int -dgmmodhandler(module_t mod, int event, void *arg) -{ - int res = 0; - - switch (event) { - case MOD_LOAD: - cdevsw_add(&dgm_cdevsw); - break; - - case MOD_UNLOAD: - cdevsw_remove(&dgm_cdevsw); - break; - } - - return res; -} - -DRIVER_MODULE(dgm, isa, dgmdriver, dgmdevclass, dgmmodhandler, 0); - -static speed_t dgmdefaultrate = TTYDEF_SPEED; - -static struct speedtab dgmspeedtab[] = { - { 0, FEP_B0 }, /* old (sysV-like) Bx codes */ - { 50, FEP_B50 }, - { 75, FEP_B75 }, - { 110, FEP_B110 }, - { 134, FEP_B134 }, - { 150, FEP_B150 }, - { 200, FEP_B200 }, - { 300, FEP_B300 }, - { 600, FEP_B600 }, - { 1200, FEP_B1200 }, - { 1800, FEP_B1800 }, - { 2400, FEP_B2400 }, - { 4800, FEP_B4800 }, - { 9600, FEP_B9600 }, - { 19200, FEP_B19200 }, - { 38400, FEP_B38400 }, - { 57600, (FEP_FASTBAUD|FEP_B50) }, /* B50 & fast baud table */ - { 115200, (FEP_FASTBAUD|FEP_B110) }, /* B100 & fast baud table */ - { -1, -1 } -}; - -static struct dbgflagtbl { - tcflag_t in_mask; - tcflag_t in_val; - tcflag_t out_val; -} dgm_cflags[] = { - { PARODD, PARODD, FEP_PARODD }, - { PARENB, PARENB, FEP_PARENB }, - { CSTOPB, CSTOPB, FEP_CSTOPB }, - { CSIZE, CS5, FEP_CS6 }, - { CSIZE, CS6, FEP_CS6 }, - { CSIZE, CS7, FEP_CS7 }, - { CSIZE, CS8, FEP_CS8 }, - { CLOCAL, CLOCAL, FEP_CLOCAL }, - { (tcflag_t)-1 } -}, dgm_iflags[] = { - { IGNBRK, IGNBRK, FEP_IGNBRK }, - { BRKINT, BRKINT, FEP_BRKINT }, - { IGNPAR, IGNPAR, FEP_IGNPAR }, - { PARMRK, PARMRK, FEP_PARMRK }, - { INPCK, INPCK, FEP_INPCK }, - { ISTRIP, ISTRIP, FEP_ISTRIP }, - { IXON, IXON, FEP_IXON }, - { IXOFF, IXOFF, FEP_IXOFF }, - { IXANY, IXANY, FEP_IXANY }, - { (tcflag_t)-1 } -}, dgm_flow[] = { - { CRTSCTS, CRTSCTS, CTS|RTS }, - { CRTSCTS, CCTS_OFLOW, CTS }, - { CRTSCTS, CRTS_IFLOW, RTS }, - { (tcflag_t)-1 } -}; - -/* xlat bsd termios flags to dgm sys-v style */ -static tcflag_t -dgmflags(struct dbgflagtbl *tbl, tcflag_t input) -{ - tcflag_t output = 0; - int i; - - for (i = 0; tbl[i].in_mask != (tcflag_t)-1; i++) - if ((input & tbl[i].in_mask) == tbl[i].in_val) - output |= tbl[i].out_val; - - return output; -} - -static int dgmdebug = 0; -SYSCTL_INT(_debug, OID_AUTO, dgm_debug, CTLFLAG_RW, &dgmdebug, 0, ""); - -static __inline int setwin(struct dgm_softc *, unsigned); -static __inline void hidewin(struct dgm_softc *); -static __inline void towin(struct dgm_softc *, int); - -/*Helg: to allow recursive dgm...() calls */ -typedef struct { - /* If we were called and don't want to disturb we need: */ - int port; /* write to this port */ - u_char data; /* this data on exit */ - /* or DATA_WINOFF to close memory window on entry */ -} BoardMemWinState; /* so several channels and even boards can coexist */ - -#define DATA_WINOFF 0 -static BoardMemWinState bmws; - -static u_long validio[] = { 0x104, 0x114, 0x124, 0x204, 0x224, 0x304, 0x324 }; -static u_long validmem[] = { - 0x80000, 0x88000, 0x90000, 0x98000, 0xa0000, 0xa8000, 0xb0000, 0xb8000, - 0xc0000, 0xc8000, 0xd0000, 0xd8000, 0xe0000, 0xe8000, 0xf0000, 0xf8000, - 0xf0000000, 0xf1000000, 0xf2000000, 0xf3000000, 0xf4000000, 0xf5000000, - 0xf6000000, 0xf7000000, 0xf8000000, 0xf9000000, 0xfa000000, 0xfb000000, - 0xfc000000, 0xfd000000, 0xfe000000, 0xff000000 -}; - -/* return current memory window state and close window */ -static BoardMemWinState -bmws_get(void) -{ - BoardMemWinState bmwsRet = bmws; - - if (bmws.data != DATA_WINOFF) - outb(bmws.port, bmws.data = DATA_WINOFF); - return bmwsRet; -} - -/* restore memory window state */ -static void -bmws_set(BoardMemWinState ws) -{ - if (ws.data != bmws.data || ws.port != bmws.port) { - if (bmws.data != DATA_WINOFF) - outb(bmws.port, DATA_WINOFF); - if (ws.data != DATA_WINOFF) - outb(ws.port, ws.data); - bmws = ws; - } -} - -static __inline int -setwin(struct dgm_softc *sc, unsigned int addr) -{ - outb(bmws.port = sc->port + 1, bmws.data = FEPWIN|(addr >> 15)); - return (addr & 0x7FFF); -} - -static __inline void -hidewin(struct dgm_softc *sc) -{ - bmws.data = 0; - outb(bmws.port = sc->port + 1, bmws.data); -} - -static __inline void -towin(struct dgm_softc *sc, int win) -{ - outb(bmws.port = sc->port + 1, bmws.data = win); -} - -static int -dgmprobe(device_t dev) -{ - struct dgm_softc *sc = device_get_softc(dev); - int i, v; - - sc->unit = device_get_unit(dev); - - /* Check that we've got a valid i/o address */ - if ((sc->port = bus_get_resource_start(dev, SYS_RES_IOPORT, 0)) == 0) - return (ENXIO); - for (i = sizeof (validio) / sizeof (validio[0]) - 1; i >= 0; i--) - if (sc->port == validio[i]) - break; - if (i == -1) { - device_printf(dev, "0x%03lx: Invalid i/o address\n", sc->port); - return (ENXIO); - } - - /* Ditto for our memory address */ - if ((sc->pmem = bus_get_resource_start(dev, SYS_RES_MEMORY, 0)) == 0) - return (ENXIO); - for (i = sizeof (validmem) / sizeof (validmem[0]) - 1; i >= 0; i--) - if (sc->pmem == validmem[i]) - break; - if (i == -1) { - device_printf(dev, "0x%lx: Invalid memory address\n", sc->pmem); - return (ENXIO); - } - if ((sc->pmem & 0xFFFFFFul) != sc->pmem) { - device_printf(dev, "0x%lx: Memory address not supported\n", - sc->pmem); - return (ENXIO); - } - sc->vmem = (u_char *)sc->pmem; - - DPRINT4(DB_INFO, "dgm%d: port 0x%lx mem 0x%lx\n", sc->unit, - sc->port, sc->pmem); - - /* Temporarily map our io ports */ - sc->iorid = 0; - sc->io_res = bus_alloc_resource(dev, SYS_RES_IOPORT, &sc->iorid, - 0ul, ~0ul, IO_SIZE, RF_ACTIVE); - if (sc->io_res == NULL) - return (ENXIO); - - outb(sc->port, FEPRST); - sc->enabled = 0; - - for (i = 0; i < 1000; i++) { - DELAY(1); - if ((inb(sc->port) & FEPMASK) == FEPRST) { - sc->enabled = 1; - DPRINT3(DB_EXCEPT, "dgm%d: got reset after %d us\n", - sc->unit, i); - break; - } - } - - if (!sc->enabled) { - DPRINT2(DB_EXCEPT, "dgm%d: failed to respond\n", sc->unit); - bus_release_resource(dev, SYS_RES_IOPORT, sc->iorid, sc->io_res); - return (ENXIO); - } - - /* check type of card and get internal memory characteristics */ - - v = inb(sc->port); - - if (!(v & 0x1)) { - int second; - - outb(sc->port, 1); - second = inb(sc->port); - printf("dgm%d: PC/Xem (type %d, %d)\n", sc->unit, v, second); - } else - printf("dgm%d: PC/Xem (type %d)\n", sc->unit, v); - - sc->type = PCXEM; - sc->mem_seg = 0x8000; - - /* Temporarily map our memory too */ - sc->mrid = 0; - sc->mem_res = bus_alloc_resource(dev, SYS_RES_MEMORY, &sc->mrid, - 0ul, ~0ul, MEM_SIZE, RF_ALLOCATED); - if (sc->mem_res == NULL) { - device_printf(dev, "0x%lx: Memory range is in use\n", sc->pmem); - bus_release_resource(dev, SYS_RES_IOPORT, sc->iorid, sc->io_res); - return (ENXIO); - } - - outb(sc->port, FEPCLR); /* drop RESET */ - hidewin(sc); /* Helg: to set initial bmws state */ - - bus_release_resource(dev, SYS_RES_MEMORY, sc->mrid, sc->mem_res); - bus_release_resource(dev, SYS_RES_IOPORT, sc->iorid, sc->io_res); - - bus_set_resource(dev, SYS_RES_IOPORT, 0, sc->port, IO_SIZE); - bus_set_resource(dev, SYS_RES_MEMORY, 0, sc->pmem, MEM_SIZE); - - DPRINT2(DB_INFO, "dgm%d: Probe returns 0\n", sc->unit); - - return (0); -} - -static int -dgmattach(device_t dev) -{ - struct dgm_softc *sc = device_get_softc(dev); - int i, t; - u_char *mem; - u_char *ptr; - int addr; - struct dgm_p *port; - volatile struct board_chan *bc; - int shrinkmem; - int lowwater; - u_long msize, iosize; - - DPRINT2(DB_INFO, "dbg%d: attaching\n", device_get_unit(dev)); - - sc->unit = device_get_unit(dev); - bus_get_resource(dev, SYS_RES_IOPORT, 0, &sc->port, &iosize); - bus_get_resource(dev, SYS_RES_MEMORY, 0, &sc->pmem, &msize); - sc->altpin = !!(device_get_flags(dev) & DGBFLAG_ALTPIN); - sc->type = PCXEM; - sc->mem_seg = 0x8000; - sc->enabled = 1; - sc->type = PCXEM; - sc->mem_seg = 0x8000; - - /* Allocate resources (should have been verified in dgmprobe()) */ - sc->iorid = 0; - sc->io_res = bus_alloc_resource(dev, SYS_RES_IOPORT, &sc->iorid, - 0ul, ~0ul, iosize, RF_ACTIVE); - if (sc->io_res == NULL) - return (ENXIO); - sc->mrid = 0; - sc->mem_res = bus_alloc_resource(dev, SYS_RES_MEMORY, &sc->mrid, - 0ul, ~0ul, msize, RF_ACTIVE); - if (sc->mem_res == NULL) { - device_printf(dev, "0x%lx: Memory range is in use\n", sc->pmem); - bus_release_resource(dev, SYS_RES_IOPORT, sc->iorid, sc->io_res); - return (ENXIO); - } - - /* map memory */ - mem = sc->vmem = pmap_mapdev(sc->pmem, msize); - - DPRINT3(DB_INFO, "dgm%d: internal memory segment 0x%x\n", sc->unit, - sc->mem_seg); - - outb(sc->port, FEPRST); - DELAY(1); - - for (i = 0; (inb(sc->port) & FEPMASK) != FEPRST; i++) { - if (i > 10000) { - device_printf(dev, "1st reset failed\n"); - sc->enabled = 0; - hidewin(sc); - bus_release_resource(dev, SYS_RES_MEMORY, sc->mrid, sc->mem_res); - bus_release_resource(dev, SYS_RES_IOPORT, sc->iorid, sc->io_res); - return (ENXIO); - } - DELAY(1); - } - - DPRINT3(DB_INFO, "dgm%d: got reset after %d us\n", sc->unit, i); - - t = sc->pmem >> 8; /* disable windowing */ - outb(sc->port + 2, t & 0xFF); - outb(sc->port + 3, t >> 8); - - mem = sc->vmem; - - /* very short memory test */ - DPRINT2(DB_INFO, "dbg%d: short memory test\n", sc->unit); - - addr = setwin(sc, BOTWIN); - *(u_long *)(mem + addr) = 0xA55A3CC3; - if (*(u_long *)(mem + addr) != 0xA55A3CC3) { - device_printf(dev, "1st memory test failed\n"); - sc->enabled = 0; - hidewin(sc); - bus_release_resource(dev, SYS_RES_MEMORY, sc->mrid, sc->mem_res); - bus_release_resource(dev, SYS_RES_IOPORT, sc->iorid, sc->io_res); - return (ENXIO); - } - - DPRINT2(DB_INFO, "dbg%d: 1st memory test ok\n", sc->unit); - - addr = setwin(sc, TOPWIN); - *(u_long *)(mem + addr) = 0x5AA5C33C; - if (*(u_long *)(mem + addr) != 0x5AA5C33C) { - device_printf(dev, "2nd memory test failed\n"); - sc->enabled = 0; - hidewin(sc); - bus_release_resource(dev, SYS_RES_MEMORY, sc->mrid, sc->mem_res); - bus_release_resource(dev, SYS_RES_IOPORT, sc->iorid, sc->io_res); - return (ENXIO); - } - - DPRINT2(DB_INFO, "dbg%d: 2nd memory test ok\n", sc->unit); - - addr = setwin(sc, BIOSCODE + ((0xF000 - sc->mem_seg) << 4)); - *(u_long *)(mem + addr) = 0x5AA5C33C; - if (*(u_long *)(mem + addr) != 0x5AA5C33C) - device_printf(dev, "3rd (BIOS) memory test failed\n"); - - DPRINT2(DB_INFO, "dbg%d: 3rd memory test ok\n", sc->unit); - - addr = setwin(sc, MISCGLOBAL); - for (i = 0; i < 16; i++) - mem[addr + i] = 0; - - addr = setwin(sc, BIOSOFFSET); - ptr = mem + addr; - for (i = 0; ptr < mem + msize; i++) - *ptr++ = pcem_bios[i]; - - ptr = mem + BIOSOFFSET; - for (i = 0; ptr < mem + msize; i++) { - if (*ptr++ != pcem_bios[i]) { - printf("Low BIOS load failed\n"); - sc->enabled = 0; - hidewin(sc); - bus_release_resource(dev, SYS_RES_MEMORY, sc->mrid, sc->mem_res); - bus_release_resource(dev, SYS_RES_IOPORT, sc->iorid, sc->io_res); - return (ENXIO); - } - } - DPRINT2(DB_INFO, "dbg%d: pcem_bios seg 1 loaded\n", sc->unit); - - addr = setwin(sc, msize); - ptr = mem + addr; - for (;i < pcem_nbios; i++) - *ptr++ = pcem_bios[i]; - - ptr = mem; - for (i = msize - BIOSOFFSET; i < pcem_nbios; i++) { - if (*ptr++ != pcem_bios[i]) { - printf("High BIOS load failed\n"); - sc->enabled = 0; - hidewin(sc); - bus_release_resource(dev, SYS_RES_MEMORY, sc->mrid, sc->mem_res); - bus_release_resource(dev, SYS_RES_IOPORT, sc->iorid, sc->io_res); - return (ENXIO); - } - } - DPRINT2(DB_INFO, "dbg%d: pcem_bios seg 2 loaded\n", sc->unit); - device_printf(dev, "DigiBIOS loaded, initializing"); - - addr = setwin(sc, 0); - - *(u_int *)(mem + addr) = 0x0bf00401; - *(u_int *)(mem + addr + 4) = 0; - *(ushort *)(mem + addr + 0xc00) = 0; - outb(sc->port, 0); - - for (i = 0; *(u_char *)(mem + addr + 0xc00) != 0x47; i++) { - DELAY(10000); - if (i > 3000) { - printf("\nBIOS initialize failed(1)\n"); - sc->enabled = 0; - hidewin(sc); - bus_release_resource(dev, SYS_RES_MEMORY, sc->mrid, sc->mem_res); - bus_release_resource(dev, SYS_RES_IOPORT, sc->iorid, sc->io_res); - return (ENXIO); - } - } - - if (*(u_char *)(mem + addr + 0xc01) != 0x44) { - printf("\nBIOS initialize failed(2)\n"); - sc->enabled = 0; - hidewin(sc); - bus_release_resource(dev, SYS_RES_MEMORY, sc->mrid, sc->mem_res); - bus_release_resource(dev, SYS_RES_IOPORT, sc->iorid, sc->io_res); - return (ENXIO); - } - printf(", DigiBIOS running\n"); - - DELAY(10000); - - addr = setwin(sc, BIOSOFFSET); - ptr = mem + addr; - for (i = 0; i < pcem_ncook; i++) - *ptr++ = pcem_cook[i]; - - ptr = mem + BIOSOFFSET; - for (i = 0; i < pcem_ncook; i++) { - if (*ptr++ != pcem_cook[i]) { - printf("FEP/OS load failed\n"); - sc->enabled = 0; - hidewin(sc); - bus_release_resource(dev, SYS_RES_MEMORY, sc->mrid, sc->mem_res); - bus_release_resource(dev, SYS_RES_IOPORT, sc->iorid, sc->io_res); - return (ENXIO); - } - } - device_printf(dev, "FEP/OS loaded, initializing"); - - addr = setwin(sc, 0); - *(ushort *)(mem + addr + 0xd20) = 0; - *(u_int *)(mem + addr + 0xc34) = 0xbfc01004; - *(u_int *)(mem + addr + 0xc30) = 0x3L; - outb(sc->port, 0); - - for (i = 0; *(u_char *)(mem + addr + 0xd20) != 'O'; i++) { - DELAY(10000); - if (i > 3000) { - printf("\nFEP/OS initialize failed(1)\n"); - sc->enabled = 0; - hidewin(sc); - bus_release_resource(dev, SYS_RES_MEMORY, sc->mrid, sc->mem_res); - bus_release_resource(dev, SYS_RES_IOPORT, sc->iorid, sc->io_res); - return (ENXIO); - } - } - - if (*(u_char *)(mem + addr + 0xd21) != 'S') { - printf("\nFEP/OS initialize failed(2)\n"); - sc->enabled = 0; - hidewin(sc); - bus_release_resource(dev, SYS_RES_MEMORY, sc->mrid, sc->mem_res); - bus_release_resource(dev, SYS_RES_IOPORT, sc->iorid, sc->io_res); - return (ENXIO); - } - printf(", FEP/OS running\n"); - - sc->numports = *(ushort *)(mem + setwin(sc, NPORT)); - device_printf(dev, "%d ports attached\n", sc->numports); - - if (sc->numports > MAX_DGM_PORTS) { - printf("dgm%d: too many ports\n", sc->unit); - sc->enabled = 0; - hidewin(sc); - bus_release_resource(dev, SYS_RES_MEMORY, sc->mrid, sc->mem_res); - bus_release_resource(dev, SYS_RES_IOPORT, sc->iorid, sc->io_res); - return (ENXIO); - } - - MALLOC(sc->ports, struct dgm_p *, sizeof (*sc->ports) * sc->numports, - M_TTYS, M_WAITOK|M_ZERO); - MALLOC(sc->ttys, struct tty *, sizeof (*sc->ttys) * sc->numports, - M_TTYS, M_WAITOK|M_ZERO); - - DPRINT3(DB_INFO, "dgm%d: enable %d ports\n", sc->unit, sc->numports); - for (i = 0; i < sc->numports; i++) - sc->ports[i].enabled = 1; - - /* We should now init per-port structures */ - setwin(sc, 0); - bc = (volatile struct board_chan *)(mem + CHANSTRUCT); - sc->mailbox = (volatile struct global_data *)(mem + FEP_GLOBAL); - - if (sc->numports < 3) - shrinkmem = 1; - else - shrinkmem = 0; - - for (i = 0; i < sc->numports; i++, bc++) { - DPRINT3(DB_INFO, "dgm%d: Set up port %d\n", sc->unit, i); - port = &sc->ports[i]; - port->sc = sc; - - port->tty = &sc->ttys[i]; - - port->brdchan = bc; - - port->dcd = CD; - port->dsr = DSR; - port->pnum = i; - - DPRINT3(DB_INFO, "dgm%d port %d: shrinkmem ?\n", sc->unit, i); - if (shrinkmem) { - DPRINT2(DB_INFO, "dgm%d: shrinking memory\n", sc->unit); - fepcmd(port, SETBUFFER, 32, 0, 0, 0); - shrinkmem = 0; - } - - DPRINT3(DB_INFO, "dgm%d port %d: assign ptrs\n", sc->unit, i); - port->txptr = mem + ((bc->tseg << 4) & 0x7FFF); - port->rxptr = mem + ((bc->rseg << 4) & 0x7FFF); - port->txwin = FEPWIN | (bc->tseg >> 11); - port->rxwin = FEPWIN | (bc->rseg >> 11); - - port->txbufhead = 0; - port->rxbufhead = 0; - port->txbufsize = bc->tmax + 1; - port->rxbufsize = bc->rmax + 1; - - lowwater = (port->txbufsize >= 2000) ? - 1024 : (port->txbufsize / 2); - - setwin(sc, 0); - DPRINT4(DB_INFO, "dgm%d port %d: fepcmd STXLWATER %d\n", - sc->unit, i, lowwater); - fepcmd(port, STXLWATER, lowwater, 0, 10, 0); - DPRINT4(DB_INFO, "dgm%d port %d: fepcmd SRXLWATER %d\n", - sc->unit, i, port->rxbufsize / 4); - fepcmd(port, SRXLWATER, port->rxbufsize / 4, 0, 10, 0); - DPRINT4(DB_INFO, "dgm%d port %d: fepcmd SRXHWATER %d\n", - sc->unit, i, 3 * port->rxbufsize / 4); - fepcmd(port, SRXHWATER, 3 * port->rxbufsize / 4, 0, 10, 0); - - bc->edelay = 100; - bc->idata = 1; - - port->startc = bc->startc; - port->startca = bc->startca; - port->stopc = bc->stopc; - port->stopca = bc->stopca; - - /* port->close_delay = 50; */ - port->close_delay = 3 * hz; - port->do_timestamp = 0; - port->do_dcd_timestamp = 0; - - DPRINT3(DB_INFO, "dgm%d port %d: setup flags\n", sc->unit, i); - /* - * We don't use all the flags from <sys/ttydefaults.h> since - * they are only relevant for logins. It's important to have - * echo off initially so that the line doesn't start - * blathering before the echo flag can be turned off. - */ - port->it_in.c_iflag = TTYDEF_IFLAG; - port->it_in.c_oflag = TTYDEF_OFLAG; - port->it_in.c_cflag = TTYDEF_CFLAG; - port->it_in.c_lflag = TTYDEF_LFLAG; - termioschars(&port->it_in); - port->it_in.c_ispeed = port->it_in.c_ospeed = dgmdefaultrate; - port->it_out = port->it_in; - - DPRINT3(DB_INFO, "dgm%d port %d: make devices\n", sc->unit, i); - make_dev(&dgm_cdevsw, (sc->unit*65536) + i, UID_ROOT, - GID_WHEEL, 0600, "ttyM%d%x", sc->unit, i + 0xa0); - make_dev(&dgm_cdevsw, sc->unit * 65536 + i + 64, UID_ROOT, - GID_WHEEL, 0600, "ttyiM%d%x", sc->unit, i + 0xa0); - make_dev(&dgm_cdevsw, sc->unit * 65536 + i + 128, UID_ROOT, - GID_WHEEL, 0600, "ttylM%d%x", sc->unit, i + 0xa0); - make_dev(&dgm_cdevsw, sc->unit * 65536 + i + 262144, UID_UUCP, - GID_DIALER, 0660, "cuaM%d%x", sc->unit, i + 0xa0); - make_dev(&dgm_cdevsw, sc->unit * 65536 + i + 262208, UID_UUCP, - GID_DIALER, 0660, "cuaiM%d%x", sc->unit, i + 0xa0); - make_dev(&dgm_cdevsw, sc->unit * 65536 + i + 262272, UID_UUCP, - GID_DIALER, 0660, "cualM%d%x", sc->unit, i + 0xa0); - } - - DPRINT3(DB_INFO, "dgm%d: %d device nodes created\n", sc->unit, sc->numports); - - hidewin(sc); - - /* start the polling function */ - sc->toh = timeout(dgmpoll, (void *)(int)sc->unit, hz / POLLSPERSEC); - - DPRINT2(DB_INFO, "dgm%d: poll thread started\n", sc->unit); - - return (0); -} - -static int -dgmdetach(device_t dev) -{ - struct dgm_softc *sc = device_get_softc(dev); - int i; - - for (i = 0; i < sc->numports; i++) - if (sc->ttys[i].t_state & TS_ISOPEN) - return (EBUSY); - - DPRINT2(DB_INFO, "dgm%d: detach\n", sc->unit); - - for (i = 0; i < sc->numports; i++) { - destroy_dev(makedev(CDEV_MAJOR, sc->unit * 65536 + i)); - destroy_dev(makedev(CDEV_MAJOR, sc->unit * 65536 + i + 64)); - destroy_dev(makedev(CDEV_MAJOR, sc->unit * 65536 + i + 128)); - destroy_dev(makedev(CDEV_MAJOR, sc->unit * 65536 + i + 262144)); - destroy_dev(makedev(CDEV_MAJOR, sc->unit * 65536 + i + 262208)); - destroy_dev(makedev(CDEV_MAJOR, sc->unit * 65536 + i + 262272)); - } - - untimeout(dgmpoll, (void *)(int)sc->unit, sc->toh); - callout_handle_init(&sc->toh); - - bus_release_resource(dev, SYS_RES_MEMORY, sc->mrid, sc->mem_res); - bus_release_resource(dev, SYS_RES_IOPORT, sc->iorid, sc->io_res); - - FREE(sc->ports, M_TTYS); - FREE(sc->ttys, M_TTYS); - - return (0); -} - -int -dgmshutdown(device_t dev) -{ -#ifdef DEBUG - struct dgm_softc *sc = device_get_softc(dev); - - DPRINT2(DB_INFO, "dgm%d: shutdown\n", sc->unit); -#endif - - return 0; -} - -/* ARGSUSED */ -static int -dgmopen(dev_t dev, int flag, int mode, struct proc *p) -{ - struct dgm_softc *sc; - struct tty *tp; - int unit; - int mynor; - int pnum; - struct dgm_p *port; - int s, cs; - int error; - volatile struct board_chan *bc; - - error = 0; - mynor = minor(dev); - unit = MINOR_TO_UNIT(mynor); - pnum = MINOR_TO_PORT(mynor); - - sc = devclass_get_softc(dgmdevclass, unit); - if (sc == NULL) { - DPRINT2(DB_EXCEPT, "dgm%d: try to open a nonexisting card\n", - unit); - return ENXIO; - } - - DPRINT2(DB_INFO, "dgm%d: open\n", sc->unit); - - if (!sc->enabled) { - DPRINT2(DB_EXCEPT, "dgm%d: try to open a disabled card\n", - unit); - return ENXIO; - } - - if (pnum >= sc->numports) { - DPRINT3(DB_EXCEPT, "dgm%d: try to open non-existing port %d\n", - unit, pnum); - return ENXIO; - } - - if (mynor & CONTROL_MASK) - return 0; - - tp = &sc->ttys[pnum]; - dev->si_tty = tp; - port = &sc->ports[pnum]; - bc = port->brdchan; - -open_top: - s = spltty(); - - while (port->closing) { - error = tsleep(&port->closing, TTOPRI|PCATCH, "dgocl", 0); - - if (error) { - DPRINT4(DB_OPEN, "dgm%d: port%d: tsleep(dgocl)" - " error = %d\n", unit, pnum, error); - goto out; - } - } - - if (tp->t_state & TS_ISOPEN) { - /* - * The device is open, so everything has been initialized. - * Handle conflicts. - */ - if (mynor & CALLOUT_MASK) { - if (!port->active_out) { - error = EBUSY; - DPRINT4(DB_OPEN, "dgm%d: port%d:" - " BUSY error = %d\n", unit, pnum, error); - goto out; - } - } else if (port->active_out) { - if (flag & O_NONBLOCK) { - error = EBUSY; - DPRINT4(DB_OPEN, "dgm%d: port%d:" - " BUSY error = %d\n", unit, pnum, error); - goto out; - } - error = tsleep(&port->active_out, - TTIPRI | PCATCH, "dgmi", 0); - if (error != 0) { - DPRINT4(DB_OPEN, "dgm%d: port%d: tsleep(dgmi)" - " error = %d\n", unit, pnum, error); - goto out; - } - splx(s); - goto open_top; - } - if (tp->t_state & TS_XCLUDE && suser(p)) { - error = EBUSY; - goto out; - } - } else { - /* - * The device isn't open, so there are no conflicts. - * Initialize it. Initialization is done twice in many - * cases: to preempt sleeping callin opens if we are - * callout, and to complete a callin open after DCD rises. - */ - tp->t_oproc = dgmstart; - tp->t_param = dgmparam; - tp->t_stop = dgmstop; - tp->t_dev = dev; - tp->t_termios= (mynor & CALLOUT_MASK) ? - port->it_out : - port->it_in; - - cs = splclock(); - setwin(sc, 0); - port->imodem = bc->mstat; - bc->rout = bc->rin; /* clear input queue */ - bc->idata = 1; -#ifdef PRINT_BUFSIZE - printf("dgm buffers tx = %x:%x rx = %x:%x\n", - bc->tseg, bc->tmax, bc->rseg, bc->rmax); -#endif - - hidewin(sc); - splx(cs); - - port->wopeners++; - error = dgmparam(tp, &tp->t_termios); - port->wopeners--; - - if (error != 0) { - DPRINT4(DB_OPEN, "dgm%d: port%d: dgmparam error = %d\n", - unit, pnum, error); - goto out; - } - - /* handle fake DCD for callout devices */ - /* and initial DCD */ - - if ((port->imodem & port->dcd) || mynor & CALLOUT_MASK) - linesw[tp->t_line].l_modem(tp, 1); - } - - /* - * Wait for DCD if necessary. - */ - if (!(tp->t_state & TS_CARR_ON) && !(mynor & CALLOUT_MASK) - && !(tp->t_cflag & CLOCAL) && !(flag & O_NONBLOCK)) { - ++port->wopeners; - error = tsleep(TSA_CARR_ON(tp), TTIPRI | PCATCH, "dgdcd", 0); - --port->wopeners; - if (error != 0) { - DPRINT4(DB_OPEN, "dgm%d: port%d: tsleep(dgdcd)" - " error = %d\n", unit, pnum, error); - goto out; - } - splx(s); - goto open_top; - } - error = linesw[tp->t_line].l_open(dev, tp); - disc_optim(tp, &tp->t_termios); - DPRINT4(DB_OPEN, "dgm%d: port%d: l_open error = %d\n", - unit, pnum, error); - - if (tp->t_state & TS_ISOPEN && mynor & CALLOUT_MASK) - port->active_out = 1; - - port->used = 1; - - /* If any port is open (i.e. the open() call is completed for it) - * the device is busy - */ - -out: - disc_optim(tp, &tp->t_termios); - splx(s); - - if (!(tp->t_state & TS_ISOPEN) && port->wopeners == 0) - dgmhardclose(port); - - DPRINT4(DB_OPEN, "dgm%d: port%d: open() returns %d\n", - unit, pnum, error); - - return error; -} - -/*ARGSUSED*/ -static int -dgmclose(dev_t dev, int flag, int mode, struct proc *p) -{ - int mynor; - struct tty *tp; - int unit, pnum; - struct dgm_softc *sc; - struct dgm_p *port; - int s; - int i; - - mynor = minor(dev); - if (mynor & CONTROL_MASK) - return 0; - unit = MINOR_TO_UNIT(mynor); - pnum = MINOR_TO_PORT(mynor); - - sc = devclass_get_softc(dgmdevclass, unit); - tp = &sc->ttys[pnum]; - port = sc->ports + pnum; - - DPRINT3(DB_CLOSE, "dgm%d: port%d: closing\n", unit, pnum); - - DPRINT3(DB_CLOSE, "dgm%d: port%d: draining port\n", unit, pnum); - dgm_drain_or_flush(port); - - s = spltty(); - - port->closing = 1; - DPRINT3(DB_CLOSE, "dgm%d: port%d: closing line disc\n", unit, pnum); - linesw[tp->t_line].l_close(tp, flag); - disc_optim(tp, &tp->t_termios); - - DPRINT3(DB_CLOSE, "dgm%d: port%d: hard closing\n", unit, pnum); - dgmhardclose(port); - DPRINT3(DB_CLOSE, "dgm%d: port%d: closing tty\n", unit, pnum); - ttyclose(tp); - port->closing = 0; - wakeup(&port->closing); - port->used = 0; - - /* mark the card idle when all ports are closed */ - - for (i = 0; i < sc->numports; i++) - if (sc->ports[i].used) - break; - - splx(s); - - DPRINT3(DB_CLOSE, "dgm%d: port%d: closed\n", unit, pnum); - - wakeup(TSA_CARR_ON(tp)); - wakeup(&port->active_out); - port->active_out = 0; - - DPRINT3(DB_CLOSE, "dgm%d: port%d: close exit\n", unit, pnum); - - return 0; -} - -static void -dgmhardclose(struct dgm_p *port) -{ - volatile struct board_chan *bc = port->brdchan; - struct dgm_softc *sc; - int cs; - - sc = devclass_get_softc(dgmdevclass, port->sc->unit); - DPRINT2(DB_INFO, "dgm%d: dgmhardclose\n", sc->unit); - cs = splclock(); - port->do_timestamp = 0; - setwin(sc, 0); - - bc->idata = 0; - bc->iempty = 0; - bc->ilow = 0; - if (port->tty->t_cflag & HUPCL) { - port->omodem &= ~(RTS|DTR); - fepcmd(port, SETMODEM, 0, DTR|RTS, 0, 1); - } - - hidewin(sc); - splx(cs); - - timeout(dgm_pause, &port->brdchan, hz/2); - tsleep(&port->brdchan, TTIPRI | PCATCH, "dgclo", 0); -} - -static void -dgm_pause(void *chan) -{ - wakeup((caddr_t)chan); -} - -static void -dgmpoll(void *unit_c) -{ - int unit = (int)unit_c; - int pnum; - struct dgm_p *port; - struct dgm_softc *sc; - int head, tail; - u_char *eventbuf; - int event, mstat, lstat; - volatile struct board_chan *bc; - struct tty *tp; - int rhead, rtail; - int whead, wtail; - int size; - u_char *ptr; - int ocount; - int ibuf_full, obuf_full; - BoardMemWinState ws = bmws_get(); - - sc = devclass_get_softc(dgmdevclass, unit); - DPRINT2(DB_INFO, "dgm%d: poll\n", sc->unit); - callout_handle_init(&sc->toh); - - if (!sc->enabled) { - printf("dgm%d: polling of disabled board stopped\n", unit); - return; - } - - setwin(sc, 0); - - head = sc->mailbox->ein; - tail = sc->mailbox->eout; - - while (head != tail) { - if (head >= FEP_IMAX - FEP_ISTART - || tail >= FEP_IMAX - FEP_ISTART - || (head|tail) & 03 ) { - printf("dgm%d: event queue's head or tail is wrong!" - " hd = %d, tl = %d\n", unit, head, tail); - break; - } - - eventbuf = sc->vmem + tail + FEP_ISTART; - pnum = eventbuf[0]; - event = eventbuf[1]; - mstat = eventbuf[2]; - lstat = eventbuf[3]; - - port = &sc->ports[pnum]; - bc = port->brdchan; - tp = &sc->ttys[pnum]; - - if (pnum >= sc->numports || !port->enabled) { - printf("dgm%d: port%d: got event on nonexisting port\n", - unit, pnum); - } else if (port->used || port->wopeners > 0 ) { - - int wrapmask = port->rxbufsize - 1; - - if (!(event & ALL_IND)) - printf("dgm%d: port%d: ? event 0x%x mstat 0x%x lstat 0x%x\n", - unit, pnum, event, mstat, lstat); - - if (event & DATA_IND) { - DPRINT3(DB_DATA, "dgm%d: port%d: DATA_IND\n", - unit, pnum); - - rhead = bc->rin & wrapmask; - rtail = bc->rout & wrapmask; - - if (!(tp->t_cflag & CREAD) || !port->used ) { - bc->rout = rhead; - goto end_of_data; - } - - if (bc->orun) { - printf("dgm%d: port%d: overrun\n", unit, pnum); - bc->orun = 0; - } - - if (!(tp->t_state & TS_ISOPEN)) - goto end_of_data; - - for (ibuf_full = FALSE; rhead != rtail && !ibuf_full;) { - DPRINT5(DB_RXDATA, "dgm%d: port%d:" - " p rx head = %d tail = %d\n", unit, - pnum, rhead, rtail); - - if (rhead > rtail) - size = rhead - rtail; - else - size = port->rxbufsize - rtail; - - ptr = port->rxptr + rtail; - -/* Helg: */ - if (tp->t_rawq.c_cc + size > DGB_IBUFSIZE ) { - size = DGB_IBUFSIZE - tp->t_rawq.c_cc; - DPRINT1(DB_RXDATA, "*"); - ibuf_full = TRUE; - } - - if (size) { - if (tp->t_state & TS_CAN_BYPASS_L_RINT) { - DPRINT1(DB_RXDATA, "!"); - towin(sc, port->rxwin); - tk_nin += size; - tk_rawcc += size; - tp->t_rawcc += size; - b_to_q(ptr, size, - &tp->t_rawq); - setwin(sc, 0); - } else { - int i = size; - unsigned char chr; - do { - towin(sc, port->rxwin); - chr = *ptr++; - hidewin(sc); - (*linesw[tp->t_line].l_rint)(chr, tp); - } while (--i > 0 ); - setwin(sc, 0); - } - } - rtail= (rtail + size) & wrapmask; - bc->rout = rtail; - rhead = bc->rin & wrapmask; - hidewin(sc); - ttwakeup(tp); - setwin(sc, 0); - } - end_of_data: ; - } - - if (event & MODEMCHG_IND) { - DPRINT3(DB_MODEM, "dgm%d: port%d: " - "MODEMCHG_IND\n", unit, pnum); - port->imodem = mstat; - if (mstat & port->dcd) { - hidewin(sc); - linesw[tp->t_line].l_modem(tp, 1); - setwin(sc, 0); - wakeup(TSA_CARR_ON(tp)); - } else { - hidewin(sc); - linesw[tp->t_line].l_modem(tp, 0); - setwin(sc, 0); - if (port->draining) { - port->draining = 0; - wakeup(&port->draining); - } - } - } - - if (event & BREAK_IND) { - if ((tp->t_state & TS_ISOPEN) && (tp->t_iflag & IGNBRK)) { - DPRINT3(DB_BREAK, "dgm%d: port%d:" - " BREAK_IND\n", unit, pnum); - hidewin(sc); - linesw[tp->t_line].l_rint(TTY_BI, tp); - setwin(sc, 0); - } - } - -/* Helg: with output flow control */ - - if (event & (LOWTX_IND | EMPTYTX_IND) ) { - DPRINT3(DB_TXDATA, "dgm%d: port%d:" - " LOWTX_IND or EMPTYTX_IND\n", unit, pnum); - - if ((event & EMPTYTX_IND ) && - tp->t_outq.c_cc == 0 && port->draining) { - port->draining = 0; - wakeup(&port->draining); - bc->ilow = 0; - bc->iempty = 0; - } else { - - int wrapmask = port->txbufsize - 1; - - for (obuf_full = FALSE; - tp->t_outq.c_cc != 0 && !obuf_full; - ) { - int s; - /* add "last-minute" data to write buffer */ - if (!(tp->t_state & TS_BUSY)) { - hidewin(sc); -#ifndef TS_ASLEEP /* post 2.0.5 FreeBSD */ - ttwwakeup(tp); -#else - if (tp->t_outq.c_cc <= tp->t_lowat) { - if (tp->t_state & TS_ASLEEP) { - tp->t_state &= ~TS_ASLEEP; - wakeup(TSA_OLOWAT(tp)); - } - /* selwakeup(&tp->t_wsel); */ - } -#endif - setwin(sc, 0); - } - s = spltty(); - - whead = bc->tin & wrapmask; - wtail = bc->tout & wrapmask; - - if (whead < wtail) - size = wtail - whead - 1; - else { - size = port->txbufsize - whead; - if (wtail == 0) - size--; - } - - if (size == 0) { - DPRINT5(DB_WR, "dgm: head = %d tail = %d size = %d full = %d\n", - whead, wtail, size, obuf_full); - bc->iempty = 1; - bc->ilow = 1; - obuf_full = TRUE; - splx(s); - break; - } - - towin(sc, port->txwin); - - ocount = q_to_b(&tp->t_outq, port->txptr + whead, size); - whead += ocount; - - setwin(sc, 0); - bc->tin = whead; - bc->tin = whead & wrapmask; - splx(s); - } - - if (obuf_full) { - DPRINT1(DB_WR, " +BUSY\n"); - tp->t_state |= TS_BUSY; - } else { - DPRINT1(DB_WR, " -BUSY\n"); - hidewin(sc); -#ifndef TS_ASLEEP /* post 2.0.5 FreeBSD */ - /* should clear TS_BUSY before ttwwakeup */ - if (tp->t_state & TS_BUSY) { - tp->t_state &= ~TS_BUSY; - linesw[tp->t_line].l_start(tp); - ttwwakeup(tp); - } -#else - if (tp->t_state & TS_ASLEEP) { - tp->t_state &= ~TS_ASLEEP; - wakeup(TSA_OLOWAT(tp)); - } - tp->t_state &= ~TS_BUSY; -#endif - setwin(sc, 0); - } - } - } - bc->idata = 1; /* require event on incoming data */ - - } else { - bc = port->brdchan; - DPRINT4(DB_EXCEPT, "dgm%d: port%d: got event 0x%x on closed port\n", - unit, pnum, event); - bc->rout = bc->rin; - bc->idata = bc->iempty = bc->ilow = 0; - } - - tail = (tail + 4) & (FEP_IMAX - FEP_ISTART - 4); - } - - sc->mailbox->eout = tail; - bmws_set(ws); - - sc->toh = timeout(dgmpoll, unit_c, hz / POLLSPERSEC); - - DPRINT2(DB_INFO, "dgm%d: poll done\n", sc->unit); -} - -static int -dgmioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p) -{ - struct dgm_softc *sc; - int unit, pnum; - struct dgm_p *port; - int mynor; - struct tty *tp; - volatile struct board_chan *bc; - int error; - int s, cs; - int tiocm_xxx; - -#if defined(COMPAT_43) || defined(COMPAT_SUNOS) - u_long oldcmd; - struct termios term; -#endif - - BoardMemWinState ws = bmws_get(); - - mynor = minor(dev); - unit = MINOR_TO_UNIT(mynor); - pnum = MINOR_TO_PORT(mynor); - - sc = devclass_get_softc(dgmdevclass, unit); - port = &sc->ports[pnum]; - tp = &sc->ttys[pnum]; - bc = port->brdchan; - - if (mynor & CONTROL_MASK) { - struct termios *ct; - - switch (mynor & CONTROL_MASK) { - case CONTROL_INIT_STATE: - ct = mynor & CALLOUT_MASK ? &port->it_out : &port->it_in; - break; - case CONTROL_LOCK_STATE: - ct = mynor & CALLOUT_MASK ? &port->lt_out : &port->lt_in; - break; - default: - return (ENODEV); /* /dev/nodev */ - } - switch (cmd) { - case TIOCSETA: - error = suser(p); - if (error != 0) - return (error); - *ct = *(struct termios *)data; - return (0); - case TIOCGETA: - *(struct termios *)data = *ct; - return (0); - case TIOCGETD: - *(int *)data = TTYDISC; - return (0); - case TIOCGWINSZ: - bzero(data, sizeof(struct winsize)); - return (0); - default: - return (ENOTTY); - } - } - -#if defined(COMPAT_43) || defined(COMPAT_SUNOS) - term = tp->t_termios; - if (cmd == TIOCSETA || cmd == TIOCSETAW || cmd == TIOCSETAF) { - DPRINT6(DB_PARAM, "dgm%d: port%d: dgmioctl-ISNOW c = 0x%x i = 0x%x l = 0x%x\n", unit, pnum, term.c_cflag, term.c_iflag, term.c_lflag); - } - oldcmd = cmd; - error = ttsetcompat(tp, &cmd, data, &term); - if (error != 0) - return (error); - if (cmd != oldcmd) - data = (caddr_t)&term; -#endif - - if (cmd == TIOCSETA || cmd == TIOCSETAW || cmd == TIOCSETAF) { - int cc; - struct termios *dt = (struct termios *)data; - struct termios *lt = mynor & CALLOUT_MASK - ? &port->lt_out : &port->lt_in; - - DPRINT6(DB_PARAM, "dgm%d: port%d: dgmioctl-TOSET c = 0x%x i = 0x%x l = 0x%x\n", unit, pnum, dt->c_cflag, dt->c_iflag, dt->c_lflag); - dt->c_iflag = (tp->t_iflag & lt->c_iflag) - | (dt->c_iflag & ~lt->c_iflag); - dt->c_oflag = (tp->t_oflag & lt->c_oflag) - | (dt->c_oflag & ~lt->c_oflag); - dt->c_cflag = (tp->t_cflag & lt->c_cflag) - | (dt->c_cflag & ~lt->c_cflag); - dt->c_lflag = (tp->t_lflag & lt->c_lflag) - | (dt->c_lflag & ~lt->c_lflag); - for (cc = 0; cc < NCCS; ++cc) - if (lt->c_cc[cc] != 0) - dt->c_cc[cc] = tp->t_cc[cc]; - if (lt->c_ispeed != 0) - dt->c_ispeed = tp->t_ispeed; - if (lt->c_ospeed != 0) - dt->c_ospeed = tp->t_ospeed; - } - - if (cmd == TIOCSTOP) { - cs = splclock(); - setwin(sc, 0); - fepcmd(port, PAUSETX, 0, 0, 0, 0); - bmws_set(ws); - splx(cs); - return 0; - } else if (cmd == TIOCSTART) { - cs = splclock(); - setwin(sc, 0); - fepcmd(port, RESUMETX, 0, 0, 0, 0); - bmws_set(ws); - splx(cs); - return 0; - } - - if (cmd == TIOCSETAW || cmd == TIOCSETAF) - port->mustdrain = 1; - - error = linesw[tp->t_line].l_ioctl(tp, cmd, data, flag, p); - if (error != ENOIOCTL) - return error; - s = spltty(); - error = ttioctl(tp, cmd, data, flag); - disc_optim(tp, &tp->t_termios); - port->mustdrain = 0; - if (error != ENOIOCTL) { - splx(s); - if (cmd == TIOCSETA || cmd == TIOCSETAW || cmd == TIOCSETAF) { - DPRINT6(DB_PARAM, "dgm%d: port%d: dgmioctl-RES c = 0x%x i = 0x%x l = 0x%x\n", unit, pnum, tp->t_cflag, tp->t_iflag, tp->t_lflag); - } - return error; - } - - switch (cmd) { - case TIOCSBRK: -/* Helg: commented */ -/* error = dgmdrain(port);*/ - - if (error != 0) { - splx(s); - return error; - } - - cs = splclock(); - setwin(sc, 0); - - /* now it sends 250 millisecond break because I don't know */ - /* how to send an infinite break */ - - fepcmd(port, SENDBREAK, 250, 0, 10, 0); - hidewin(sc); - splx(cs); - break; - case TIOCCBRK: - /* now it's empty */ - break; - case TIOCSDTR: - DPRINT3(DB_MODEM, "dgm%d: port%d: set DTR\n", unit, pnum); - port->omodem |= DTR; - cs = splclock(); - setwin(sc, 0); - fepcmd(port, SETMODEM, port->omodem, RTS, 0, 1); - - if (!(bc->mstat & DTR)) - DPRINT3(DB_MODEM, "dgm%d: port%d: DTR is off\n", unit, pnum); - - hidewin(sc); - splx(cs); - break; - case TIOCCDTR: - DPRINT3(DB_MODEM, "dgm%d: port%d: reset DTR\n", unit, pnum); - port->omodem &= ~DTR; - cs = splclock(); - setwin(sc, 0); - fepcmd(port, SETMODEM, port->omodem, RTS|DTR, 0, 1); - - if (bc->mstat & DTR) { - DPRINT3(DB_MODEM, "dgm%d: port%d: DTR is on\n", unit, pnum); - } - - hidewin(sc); - splx(cs); - break; - case TIOCMSET: - if (*(int *)data & TIOCM_DTR) - port->omodem |= DTR; - else - port->omodem &= ~DTR; - - if (*(int *)data & TIOCM_RTS) - port->omodem |= RTS; - else - port->omodem &= ~RTS; - - cs = splclock(); - setwin(sc, 0); - fepcmd(port, SETMODEM, port->omodem, RTS|DTR, 0, 1); - hidewin(sc); - splx(cs); - break; - case TIOCMBIS: - if (*(int *)data & TIOCM_DTR) - port->omodem |= DTR; - - if (*(int *)data & TIOCM_RTS) - port->omodem |= RTS; - - cs = splclock(); - setwin(sc, 0); - fepcmd(port, SETMODEM, port->omodem, RTS|DTR, 0, 1); - hidewin(sc); - splx(cs); - break; - case TIOCMBIC: - if (*(int *)data & TIOCM_DTR) - port->omodem &= ~DTR; - - if (*(int *)data & TIOCM_RTS) - port->omodem &= ~RTS; - - cs = splclock(); - setwin(sc, 0); - fepcmd(port, SETMODEM, port->omodem, RTS|DTR, 0, 1); - hidewin(sc); - splx(cs); - break; - case TIOCMGET: - setwin(sc, 0); - port->imodem = bc->mstat; - hidewin(sc); - - tiocm_xxx = TIOCM_LE; /* XXX - always enabled while open */ - - DPRINT3(DB_MODEM, "dgm%d: port%d: modem stat -- ", unit, pnum); - - if (port->imodem & DTR) { - DPRINT1(DB_MODEM, "DTR "); - tiocm_xxx |= TIOCM_DTR; - } - if (port->imodem & RTS) { - DPRINT1(DB_MODEM, "RTS "); - tiocm_xxx |= TIOCM_RTS; - } - if (port->imodem & CTS) { - DPRINT1(DB_MODEM, "CTS "); - tiocm_xxx |= TIOCM_CTS; - } - if (port->imodem & port->dcd) { - DPRINT1(DB_MODEM, "DCD "); - tiocm_xxx |= TIOCM_CD; - } - if (port->imodem & port->dsr) { - DPRINT1(DB_MODEM, "DSR "); - tiocm_xxx |= TIOCM_DSR; - } - if (port->imodem & RI) { - DPRINT1(DB_MODEM, "RI "); - tiocm_xxx |= TIOCM_RI; - } - *(int *)data = tiocm_xxx; - DPRINT1(DB_MODEM, "--\n"); - break; - case TIOCMSDTRWAIT: - /* must be root since the wait applies to following logins */ - error = suser(p); - if (error != 0) { - splx(s); - return (error); - } - port->close_delay = *(int *)data * hz / 100; - break; - case TIOCMGDTRWAIT: - *(int *)data = port->close_delay * 100 / hz; - break; - case TIOCTIMESTAMP: - port->do_timestamp = 1; - *(struct timeval *)data = port->timestamp; - break; - case TIOCDCDTIMESTAMP: - port->do_dcd_timestamp = 1; - *(struct timeval *)data = port->dcd_timestamp; - break; - default: - bmws_set(ws); - splx(s); - return ENOTTY; - } - bmws_set(ws); - splx(s); - - return 0; -} - -static void -wakeflush(void *p) -{ - struct dgm_p *port = p; - - wakeup(&port->draining); -} - -/* wait for the output to drain */ - -static int -dgmdrain(struct dgm_p *port) -{ - volatile struct board_chan *bc = port->brdchan; - struct dgm_softc *sc; - int error; - int head, tail; - BoardMemWinState ws = bmws_get(); - - sc = devclass_get_softc(dgmdevclass, port->sc->unit); - - setwin(sc, 0); - - bc->iempty = 1; - tail = bc->tout; - head = bc->tin; - - while (tail != head) { - DPRINT5(DB_WR, "dgm%d: port%d: drain: head = %d tail = %d\n", - port->sc->unit, port->pnum, head, tail); - - hidewin(sc); - port->draining = 1; - timeout(wakeflush, port, hz); - error = tsleep(&port->draining, TTIPRI | PCATCH, "dgdrn", 0); - port->draining = 0; - setwin(sc, 0); - - if (error != 0) { - DPRINT4(DB_WR, "dgm%d: port%d: tsleep(dgdrn) error = %d\n", - port->sc->unit, port->pnum, error); - - bc->iempty = 0; - bmws_set(ws); - return error; - } - - tail = bc->tout; - head = bc->tin; - } - DPRINT5(DB_WR, "dgm%d: port%d: drain: head = %d tail = %d\n", - port->sc->unit, port->pnum, head, tail); - bmws_set(ws); - return 0; -} - -/* wait for the output to drain */ -/* or simply clear the buffer it it's stopped */ - -static void -dgm_drain_or_flush(struct dgm_p *port) -{ - volatile struct board_chan *bc = port->brdchan; - struct tty *tp = port->tty; - struct dgm_softc *sc; - int error; - int lasttail; - int head, tail; - - sc = devclass_get_softc(dgmdevclass, port->sc->unit); - setwin(sc, 0); - - lasttail = -1; - bc->iempty = 1; - tail = bc->tout; - head = bc->tin; - - while (tail != head /* && tail != lasttail */ ) { - DPRINT5(DB_WR, "dgm%d: port%d: flush: head = %d tail = %d\n", - port->sc->unit, port->pnum, head, tail); - - /* if there is no carrier simply clean the buffer */ - if (!(tp->t_state & TS_CARR_ON)) { - bc->tout = bc->tin = 0; - bc->iempty = 0; - hidewin(sc); - return; - } - - hidewin(sc); - port->draining = 1; - timeout(wakeflush, port, hz); - error = tsleep(&port->draining, TTIPRI | PCATCH, "dgfls", 0); - port->draining = 0; - setwin(sc, 0); - - if (error != 0) { - DPRINT4(DB_WR, "dgm%d: port%d: tsleep(dgfls)" - " error = %d\n", port->sc->unit, port->pnum, error); - - /* silently clean the buffer */ - - bc->tout = bc->tin = 0; - bc->iempty = 0; - hidewin(sc); - return; - } - - lasttail = tail; - tail = bc->tout; - head = bc->tin; - } - hidewin(sc); - DPRINT5(DB_WR, "dgm%d: port%d: flush: head = %d tail = %d\n", - port->sc->unit, port->pnum, head, tail); -} - -static int -dgmparam(struct tty *tp, struct termios *t) -{ - int unit = MINOR_TO_UNIT(minor(tp->t_dev)); - int pnum = MINOR_TO_PORT(minor(tp->t_dev)); - volatile struct board_chan *bc; - struct dgm_softc *sc; - struct dgm_p *port; - int cflag; - int head; - int mval; - int iflag; - int hflow; - int cs; - BoardMemWinState ws = bmws_get(); - - sc = devclass_get_softc(dgmdevclass, unit); - port = &sc->ports[pnum]; - bc = port->brdchan; - - DPRINT6(DB_PARAM, "dgm%d: port%d: dgmparm c = 0x%x i = 0x%x l = 0x%x\n", unit, pnum, t->c_cflag, t->c_iflag, t->c_lflag); - - if (port->mustdrain) { - DPRINT3(DB_PARAM, "dgm%d: port%d: must call dgmdrain()\n", unit, pnum); - dgmdrain(port); - } - - cflag = ttspeedtab(t->c_ospeed, dgmspeedtab); - - if (t->c_ispeed == 0) - t->c_ispeed = t->c_ospeed; - - if (cflag < 0 /* || cflag > 0 && t->c_ispeed != t->c_ospeed */) { - DPRINT4(DB_PARAM, "dgm%d: port%d: invalid cflag = 0%o\n", unit, pnum, cflag); - return (EINVAL); - } - - cs = splclock(); - setwin(sc, 0); - - if (cflag == 0) { /* hangup */ - DPRINT3(DB_PARAM, "dgm%d: port%d: hangup\n", unit, pnum); - head = bc->rin; - bc->rout = head; - head = bc->tin; - fepcmd(port, STOUT, (unsigned)head, 0, 0, 0); - mval= port->omodem & ~(DTR|RTS); - } else { - cflag |= dgmflags(dgm_cflags, t->c_cflag); - - if (cflag != port->fepcflag) { - port->fepcflag = cflag; - DPRINT5(DB_PARAM, "dgm%d: port%d: set cflag = 0x%x c = 0x%x\n", - unit, pnum, cflag, t->c_cflag&~CRTSCTS); - fepcmd(port, SETCTRLFLAGS, (unsigned)cflag, 0, 0, 0); - } - mval= port->omodem | (DTR|RTS); - } - - iflag = dgmflags(dgm_iflags, t->c_iflag); - if (iflag != port->fepiflag) { - port->fepiflag = iflag; - DPRINT5(DB_PARAM, "dgm%d: port%d: set iflag = 0x%x c = 0x%x\n", unit, pnum, iflag, t->c_iflag); - fepcmd(port, SETIFLAGS, (unsigned)iflag, 0, 0, 0); - } - - bc->mint = port->dcd; - - hflow = dgmflags(dgm_flow, t->c_cflag); - if (hflow != port->hflow) { - port->hflow = hflow; - DPRINT5(DB_PARAM, "dgm%d: port%d: set hflow = 0x%x f = 0x%x\n", unit, pnum, hflow, t->c_cflag&CRTSCTS); - fepcmd(port, SETHFLOW, (unsigned)hflow, 0xff, 0, 1); - } - - if (port->omodem != mval) { - DPRINT5(DB_PARAM, "dgm%d: port%d: setting modem parameters 0x%x was 0x%x\n", - unit, pnum, mval, port->omodem); - port->omodem = mval; - fepcmd(port, SETMODEM, (unsigned)mval, RTS|DTR, 0, 1); - } - - if (port->fepstartc != t->c_cc[VSTART] || - port->fepstopc != t->c_cc[VSTOP]) { - DPRINT5(DB_PARAM, "dgm%d: port%d: set startc = %d, stopc = %d\n", unit, pnum, t->c_cc[VSTART], t->c_cc[VSTOP]); - port->fepstartc = t->c_cc[VSTART]; - port->fepstopc = t->c_cc[VSTOP]; - fepcmd(port, SONOFFC, port->fepstartc, port->fepstopc, 0, 1); - } - - bmws_set(ws); - splx(cs); - - return 0; - -} - -static void -dgmstart(struct tty *tp) -{ - int unit; - int pnum; - struct dgm_p *port; - struct dgm_softc *sc; - volatile struct board_chan *bc; - int head, tail; - int size, ocount; - int s; - int wmask; - - BoardMemWinState ws = bmws_get(); - - unit = MINOR_TO_UNIT(minor(tp->t_dev)); - pnum = MINOR_TO_PORT(minor(tp->t_dev)); - sc = devclass_get_softc(dgmdevclass, unit); - port = &sc->ports[pnum]; - bc = port->brdchan; - - wmask = port->txbufsize - 1; - - s = spltty(); - - while (tp->t_outq.c_cc != 0) { - int cs; -#ifndef TS_ASLEEP /* post 2.0.5 FreeBSD */ - ttwwakeup(tp); -#else - if (tp->t_outq.c_cc <= tp->t_lowat) { - if (tp->t_state & TS_ASLEEP) { - tp->t_state &= ~TS_ASLEEP; - wakeup(TSA_OLOWAT(tp)); - } - /*selwakeup(&tp->t_wsel);*/ - } -#endif - cs = splclock(); - setwin(sc, 0); - - head = bc->tin & wmask; - - do { tail = bc->tout; } while (tail != bc->tout); - tail = bc->tout & wmask; - - DPRINT5(DB_WR, "dgm%d: port%d: s tx head = %d tail = %d\n", unit, pnum, head, tail); - -#ifdef LEAVE_FREE_CHARS - if (tail > head) { - size = tail - head - LEAVE_FREE_CHARS; - if (size < 0) - size = 0; - else { - size = port->txbufsize - head; - if (tail + port->txbufsize < head) - size = 0; - } - } -#else - if (tail > head) - size = tail - head - 1; - else { - size = port->txbufsize - head; - if (tail == 0) - size--; - } -#endif - - if (size == 0) { - bc->iempty = 1; - bc->ilow = 1; - splx(cs); - bmws_set(ws); - tp->t_state |= TS_BUSY; - splx(s); - return; - } - - towin(sc, port->txwin); - - ocount = q_to_b(&tp->t_outq, port->txptr + head, size); - head += ocount; - if (head >= port->txbufsize) - head -= port->txbufsize; - - setwin(sc, 0); - bc->tin = head; - - DPRINT5(DB_WR, "dgm%d: port%d: tx avail = %d count = %d\n", - unit, pnum, size, ocount); - hidewin(sc); - splx(cs); - } - - bmws_set(ws); - splx(s); - -#ifndef TS_ASLEEP /* post 2.0.5 FreeBSD */ - if (tp->t_state & TS_BUSY) { - tp->t_state &= ~TS_BUSY; - linesw[tp->t_line].l_start(tp); - ttwwakeup(tp); - } -#else - if (tp->t_state & TS_ASLEEP) { - tp->t_state &= ~TS_ASLEEP; - wakeup(TSA_OLOWAT(tp)); - } - tp->t_state& = ~TS_BUSY; -#endif -} - -void -dgmstop(struct tty *tp, int rw) -{ - int unit; - int pnum; - struct dgm_p *port; - struct dgm_softc *sc; - volatile struct board_chan *bc; - int s; - - BoardMemWinState ws = bmws_get(); - - unit = MINOR_TO_UNIT(minor(tp->t_dev)); - pnum = MINOR_TO_PORT(minor(tp->t_dev)); - - sc = devclass_get_softc(dgmdevclass, unit); - port = &sc->ports[pnum]; - bc = port->brdchan; - - DPRINT3(DB_WR, "dgm%d: port%d: stop\n", port->sc->unit, port->pnum); - - s = spltty(); - setwin(sc, 0); - - if (rw & FWRITE) { - /* clear output queue */ - bc->tout = bc->tin = 0; - bc->ilow = 0; - bc->iempty = 0; - } - if (rw & FREAD) { - /* clear input queue */ - bc->rout = bc->rin; - bc->idata = 1; - } - hidewin(sc); - bmws_set(ws); - splx(s); - dgmstart(tp); -} - -static void -fepcmd(struct dgm_p *port, - unsigned cmd, - unsigned op1, - unsigned op2, - unsigned ncmds, - unsigned bytecmd) -{ - u_char *mem; - unsigned tail, head; - int count, n; - - KASSERT(port->sc, ("Couldn't (re)obtain driver softc")); - mem = port->sc->vmem; - - if (!port->enabled) { - printf("dgm%d: port%d: FEP command on disabled port\n", - port->sc->unit, port->pnum); - return; - } - - /* setwin(port->sc, 0); Require this to be set by caller */ - head = port->sc->mailbox->cin; - - if (head >= FEP_CMAX - FEP_CSTART || (head & 3)) { - printf("dgm%d: port%d: wrong pointer head of command queue : 0x%x\n", - port->sc->unit, port->pnum, head); - return; - } - - mem[head + FEP_CSTART] = cmd; - mem[head + FEP_CSTART + 1] = port->pnum; - if (bytecmd) { - mem[head + FEP_CSTART + 2] = op1; - mem[head + FEP_CSTART + 3] = op2; - } else { - mem[head + FEP_CSTART + 2] = op1 & 0xff; - mem[head + FEP_CSTART + 3] = (op1 >> 8) & 0xff; - } - - DPRINT7(DB_FEP, "dgm%d: port%d: %s cmd = 0x%x op1 = 0x%x op2 = 0x%x\n", port->sc->unit, port->pnum, - (bytecmd)?"byte":"word", cmd, mem[head + FEP_CSTART + 2], mem[head + FEP_CSTART + 3]); - - head = (head + 4) & (FEP_CMAX - FEP_CSTART - 4); - port->sc->mailbox->cin = head; - - count = FEPTIMEOUT; - - while (count-- != 0) { - head = port->sc->mailbox->cin; - tail = port->sc->mailbox->cout; - - n = (head - tail) & (FEP_CMAX - FEP_CSTART - 4); - if (n <= ncmds * (sizeof(ushort)*4)) - return; - } - printf("dgm%d(%d): timeout on FEP cmd = 0x%x\n", port->sc->unit, port->pnum, cmd); -} - -static void -disc_optim(struct tty *tp, struct termios *t) -{ - if (!(t->c_iflag & (ICRNL | IGNCR | IMAXBEL | INLCR | ISTRIP | IXON)) - && (!(t->c_iflag & BRKINT) || (t->c_iflag & IGNBRK)) - && (!(t->c_iflag & PARMRK) - || (t->c_iflag & (IGNPAR | IGNBRK)) == (IGNPAR | IGNBRK)) - && !(t->c_lflag & (ECHO | ICANON | IEXTEN | ISIG | PENDIN)) - && linesw[tp->t_line].l_rint == ttyinput) - tp->t_state |= TS_CAN_BYPASS_L_RINT; - else - tp->t_state &= ~TS_CAN_BYPASS_L_RINT; -} |
