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Diffstat (limited to 'sys/i386/isa/istallion.c')
| -rw-r--r-- | sys/i386/isa/istallion.c | 3850 |
1 files changed, 0 insertions, 3850 deletions
diff --git a/sys/i386/isa/istallion.c b/sys/i386/isa/istallion.c deleted file mode 100644 index f6f10b1..0000000 --- a/sys/i386/isa/istallion.c +++ /dev/null @@ -1,3850 +0,0 @@ -/*****************************************************************************/ - -/* - * istallion.c -- stallion intelligent multiport serial driver. - * - * Copyright (c) 1994-1996 Greg Ungerer (gerg@stallion.oz.au). - * All rights reserved. - * - * 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. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by Greg Ungerer. - * 4. Neither the name of the author nor the names of any co-contributors - * may 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. - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -/*****************************************************************************/ - -#include "opt_compat.h" -#include "opt_tty.h" - -#define TTYDEFCHARS 1 - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/kernel.h> -#include <sys/malloc.h> -#include <sys/tty.h> -#include <sys/conf.h> -#include <sys/fcntl.h> -#include <sys/uio.h> -#include <sys/bus.h> -#include <vm/vm.h> -#include <vm/pmap.h> -#include <i386/isa/isa_device.h> -#include <machine/cdk.h> -#include <machine/comstats.h> - -#ifndef COMPAT_OLDISA -#error "The stli device requires the old isa compatibility shims" -#endif - -/*****************************************************************************/ - -/* - * Define the version level of the kernel - so we can compile in the - * appropriate bits of code. By default this will compile for a 2.1 - * level kernel. - */ -#define VFREEBSD 220 - -#if VFREEBSD >= 220 -#define STATIC static -#else -#define STATIC -#endif - -/*****************************************************************************/ - -/* - * Define different board types. Not all of the following board types - * are supported by this driver. But I will use the standard "assigned" - * board numbers. Currently supported boards are abbreviated as: - * ECP = EasyConnection 8/64, ONB = ONboard, BBY = Brumby and - * STAL = Stallion. - */ -#define BRD_UNKNOWN 0 -#define BRD_STALLION 1 -#define BRD_BRUMBY4 2 -#define BRD_ONBOARD2 3 -#define BRD_ONBOARD 4 -#define BRD_BRUMBY8 5 -#define BRD_BRUMBY16 6 -#define BRD_ONBOARDE 7 -#define BRD_ONBOARD32 9 -#define BRD_ONBOARD2_32 10 -#define BRD_ONBOARDRS 11 -#define BRD_EASYIO 20 -#define BRD_ECH 21 -#define BRD_ECHMC 22 -#define BRD_ECP 23 -#define BRD_ECPE 24 -#define BRD_ECPMC 25 -#define BRD_ECHPCI 26 - -#define BRD_BRUMBY BRD_BRUMBY4 - -/*****************************************************************************/ - -/* - * Define important driver limitations. - */ -#define STL_MAXBRDS 8 -#define STL_MAXPANELS 4 -#define STL_PORTSPERPANEL 16 -#define STL_PORTSPERBRD 64 - -#define STL_MAXCHANS STL_PORTSPERBRD - - -/* - * Define the important minor number break down bits. These have been - * chosen to be "compatible" with the standard sio driver minor numbers. - * Extra high bits are used to distinguish between boards and also for - * really high port numbers (> 32). - */ -#define STL_CALLOUTDEV 0x80 -#define STL_CTRLLOCK 0x40 -#define STL_CTRLINIT 0x20 -#define STL_CTRLDEV (STL_CTRLLOCK | STL_CTRLINIT) - -#define STL_MEMDEV 0x07000000 - -#define STL_DEFSPEED TTYDEF_SPEED -#define STL_DEFCFLAG (CS8 | CREAD | HUPCL) - -/*****************************************************************************/ - -/* - * Define our local driver identity first. Set up stuff to deal with - * all the local structures required by a serial tty driver. - */ -static char stli_drvname[] = "stli"; -static char const stli_longdrvname[] = "Stallion Multiport Serial Driver"; -static char const stli_drvversion[] = "1.0.0"; - -static int stli_nrbrds = 0; -static int stli_doingtimeout = 0; - -static char *__file__ = /*__FILE__*/ "istallion.c"; - -/* - * Define some macros to use to class define boards. - */ -#define BRD_ISA 0x1 -#define BRD_EISA 0x2 -#define BRD_MCA 0x4 -#define BRD_PCI 0x8 - -static unsigned char stli_stliprobed[STL_MAXBRDS]; - -/*****************************************************************************/ - -/* - * Define a set of structures to hold all the board/panel/port info - * for our ports. These will be dynamically allocated as required at - * driver initialization time. - */ - -/* - * Port and board structures to hold status info about each object. - * The board structure contains pointers to structures for each port - * connected to it. Panels are not distinguished here, since - * communication with the slave board will always be on a per port - * basis. - */ -typedef struct { - struct tty tty; - int portnr; - int panelnr; - int brdnr; - int ioaddr; - int callout; - int devnr; - int dtrwait; - int dotimestamp; - int waitopens; - int hotchar; - int rc; - int argsize; - void *argp; - unsigned int state; - unsigned int sigs; - struct termios initintios; - struct termios initouttios; - struct termios lockintios; - struct termios lockouttios; - struct timeval timestamp; - asysigs_t asig; - unsigned long addr; - unsigned long rxlost; - unsigned long rxoffset; - unsigned long txoffset; - unsigned long pflag; - unsigned int rxsize; - unsigned int txsize; - unsigned char reqidx; - unsigned char reqbit; - unsigned char portidx; - unsigned char portbit; -} stliport_t; - -/* - * Use a structure of function pointers to do board level operations. - * These include, enable/disable, paging shared memory, interrupting, etc. - */ -typedef struct stlibrd { - int brdnr; - int brdtype; - int unitid; - int state; - int nrpanels; - int nrports; - int nrdevs; - unsigned int iobase; - unsigned long paddr; - void *vaddr; - int memsize; - int pagesize; - int hostoffset; - int slaveoffset; - int bitsize; - int confbits; - void (*init)(struct stlibrd *brdp); - void (*enable)(struct stlibrd *brdp); - void (*reenable)(struct stlibrd *brdp); - void (*disable)(struct stlibrd *brdp); - void (*intr)(struct stlibrd *brdp); - void (*reset)(struct stlibrd *brdp); - char *(*getmemptr)(struct stlibrd *brdp, - unsigned long offset, int line); - int panels[STL_MAXPANELS]; - int panelids[STL_MAXPANELS]; - stliport_t *ports[STL_PORTSPERBRD]; -} stlibrd_t; - -static stlibrd_t *stli_brds[STL_MAXBRDS]; - -static int stli_shared = 0; - -/* - * Keep a local char buffer for processing chars into the LD. We - * do this to avoid copying from the boards shared memory one char - * at a time. - */ -static int stli_rxtmplen; -static stliport_t *stli_rxtmpport; -static char stli_rxtmpbuf[TTYHOG]; - -/* - * Define global stats structures. Not used often, and can be re-used - * for each stats call. - */ -static comstats_t stli_comstats; -static combrd_t stli_brdstats; -static asystats_t stli_cdkstats; - -/* - * Per board state flags. Used with the state field of the board struct. - * Not really much here... All we need to do is keep track of whether - * the board has been detected, and whether it is actully running a slave - * or not. - */ -#define BST_FOUND 0x1 -#define BST_STARTED 0x2 - -/* - * Define the set of port state flags. These are marked for internal - * state purposes only, usually to do with the state of communications - * with the slave. They need to be updated atomically. - */ -#define ST_INITIALIZING 0x1 -#define ST_INITIALIZED 0x2 -#define ST_OPENING 0x4 -#define ST_CLOSING 0x8 -#define ST_CMDING 0x10 -#define ST_RXING 0x20 -#define ST_TXBUSY 0x40 -#define ST_DOFLUSHRX 0x80 -#define ST_DOFLUSHTX 0x100 -#define ST_DOSIGS 0x200 -#define ST_GETSIGS 0x400 -#define ST_DTRWAIT 0x800 - -/* - * Define an array of board names as printable strings. Handy for - * referencing boards when printing trace and stuff. - */ -static char *stli_brdnames[] = { - "Unknown", - "Stallion", - "Brumby", - "ONboard-MC", - "ONboard", - "Brumby", - "Brumby", - "ONboard-EI", - (char *) NULL, - "ONboard", - "ONboard-MC", - "ONboard-MC", - (char *) NULL, - (char *) NULL, - (char *) NULL, - (char *) NULL, - (char *) NULL, - (char *) NULL, - (char *) NULL, - (char *) NULL, - "EasyIO", - "EC8/32-AT", - "EC8/32-MC", - "EC8/64-AT", - "EC8/64-EI", - "EC8/64-MC", - "EC8/32-PCI", -}; - -/*****************************************************************************/ - -/* - * Hardware configuration info for ECP boards. These defines apply - * to the directly accessible io ports of the ECP. There is a set of - * defines for each ECP board type, ISA, EISA and MCA. - */ -#define ECP_IOSIZE 4 -#define ECP_MEMSIZE (128 * 1024) -#define ECP_ATPAGESIZE (4 * 1024) -#define ECP_EIPAGESIZE (64 * 1024) -#define ECP_MCPAGESIZE (4 * 1024) - -#define STL_EISAID 0x8c4e - -/* - * Important defines for the ISA class of ECP board. - */ -#define ECP_ATIREG 0 -#define ECP_ATCONFR 1 -#define ECP_ATMEMAR 2 -#define ECP_ATMEMPR 3 -#define ECP_ATSTOP 0x1 -#define ECP_ATINTENAB 0x10 -#define ECP_ATENABLE 0x20 -#define ECP_ATDISABLE 0x00 -#define ECP_ATADDRMASK 0x3f000 -#define ECP_ATADDRSHFT 12 - -/* - * Important defines for the EISA class of ECP board. - */ -#define ECP_EIIREG 0 -#define ECP_EIMEMARL 1 -#define ECP_EICONFR 2 -#define ECP_EIMEMARH 3 -#define ECP_EIENABLE 0x1 -#define ECP_EIDISABLE 0x0 -#define ECP_EISTOP 0x4 -#define ECP_EIEDGE 0x00 -#define ECP_EILEVEL 0x80 -#define ECP_EIADDRMASKL 0x00ff0000 -#define ECP_EIADDRSHFTL 16 -#define ECP_EIADDRMASKH 0xff000000 -#define ECP_EIADDRSHFTH 24 -#define ECP_EIBRDENAB 0xc84 - -#define ECP_EISAID 0x4 - -/* - * Important defines for the Micro-channel class of ECP board. - * (It has a lot in common with the ISA boards.) - */ -#define ECP_MCIREG 0 -#define ECP_MCCONFR 1 -#define ECP_MCSTOP 0x20 -#define ECP_MCENABLE 0x80 -#define ECP_MCDISABLE 0x00 - -/* - * Hardware configuration info for ONboard and Brumby boards. These - * defines apply to the directly accessible io ports of these boards. - */ -#define ONB_IOSIZE 16 -#define ONB_MEMSIZE (64 * 1024) -#define ONB_ATPAGESIZE (64 * 1024) -#define ONB_MCPAGESIZE (64 * 1024) -#define ONB_EIMEMSIZE (128 * 1024) -#define ONB_EIPAGESIZE (64 * 1024) - -/* - * Important defines for the ISA class of ONboard board. - */ -#define ONB_ATIREG 0 -#define ONB_ATMEMAR 1 -#define ONB_ATCONFR 2 -#define ONB_ATSTOP 0x4 -#define ONB_ATENABLE 0x01 -#define ONB_ATDISABLE 0x00 -#define ONB_ATADDRMASK 0xff0000 -#define ONB_ATADDRSHFT 16 - -#define ONB_HIMEMENAB 0x02 - -/* - * Important defines for the EISA class of ONboard board. - */ -#define ONB_EIIREG 0 -#define ONB_EIMEMARL 1 -#define ONB_EICONFR 2 -#define ONB_EIMEMARH 3 -#define ONB_EIENABLE 0x1 -#define ONB_EIDISABLE 0x0 -#define ONB_EISTOP 0x4 -#define ONB_EIEDGE 0x00 -#define ONB_EILEVEL 0x80 -#define ONB_EIADDRMASKL 0x00ff0000 -#define ONB_EIADDRSHFTL 16 -#define ONB_EIADDRMASKH 0xff000000 -#define ONB_EIADDRSHFTH 24 -#define ONB_EIBRDENAB 0xc84 - -#define ONB_EISAID 0x1 - -/* - * Important defines for the Brumby boards. They are pretty simple, - * there is not much that is programmably configurable. - */ -#define BBY_IOSIZE 16 -#define BBY_MEMSIZE (64 * 1024) -#define BBY_PAGESIZE (16 * 1024) - -#define BBY_ATIREG 0 -#define BBY_ATCONFR 1 -#define BBY_ATSTOP 0x4 - -/* - * Important defines for the Stallion boards. They are pretty simple, - * there is not much that is programmably configurable. - */ -#define STAL_IOSIZE 16 -#define STAL_MEMSIZE (64 * 1024) -#define STAL_PAGESIZE (64 * 1024) - -/* - * Define the set of status register values for EasyConnection panels. - * The signature will return with the status value for each panel. From - * this we can determine what is attached to the board - before we have - * actually down loaded any code to it. - */ -#define ECH_PNLSTATUS 2 -#define ECH_PNL16PORT 0x20 -#define ECH_PNLIDMASK 0x07 -#define ECH_PNLINTRPEND 0x80 - -/* - * Define some macros to do things to the board. Even those these boards - * are somewhat related there is often significantly different ways of - * doing some operation on it (like enable, paging, reset, etc). So each - * board class has a set of functions which do the commonly required - * operations. The macros below basically just call these functions, - * generally checking for a NULL function - which means that the board - * needs nothing done to it to achieve this operation! - */ -#define EBRDINIT(brdp) \ - if (brdp->init != NULL) \ - (* brdp->init)(brdp) - -#define EBRDENABLE(brdp) \ - if (brdp->enable != NULL) \ - (* brdp->enable)(brdp); - -#define EBRDDISABLE(brdp) \ - if (brdp->disable != NULL) \ - (* brdp->disable)(brdp); - -#define EBRDINTR(brdp) \ - if (brdp->intr != NULL) \ - (* brdp->intr)(brdp); - -#define EBRDRESET(brdp) \ - if (brdp->reset != NULL) \ - (* brdp->reset)(brdp); - -#define EBRDGETMEMPTR(brdp,offset) \ - (* brdp->getmemptr)(brdp, offset, __LINE__) - -/* - * Define the maximal baud rate. - */ -#define STL_MAXBAUD 230400 - -/*****************************************************************************/ - -/* - * Define macros to extract a brd and port number from a minor number. - * This uses the extended minor number range in the upper 2 bytes of - * the device number. This gives us plenty of minor numbers to play - * with... - */ -#define MKDEV2BRD(m) ((minor(m) & 0x00700000) >> 20) -#define MKDEV2PORT(m) ((minor(m) & 0x1f) | ((minor(m) & 0x00010000) >> 11)) - -/* - * Define some handy local macros... - */ -#ifndef MIN -#define MIN(a,b) (((a) <= (b)) ? (a) : (b)) -#endif - -/*****************************************************************************/ - -/* - * Declare all those functions in this driver! First up is the set of - * externally visible functions. - */ -static int stliprobe(struct isa_device *idp); -static int stliattach(struct isa_device *idp); - -STATIC d_open_t stliopen; -STATIC d_close_t stliclose; -STATIC d_read_t stliread; -STATIC d_write_t stliwrite; -STATIC d_ioctl_t stliioctl; - -/* - * Internal function prototypes. - */ -static stliport_t *stli_dev2port(dev_t dev); -static int stli_isaprobe(struct isa_device *idp); -static int stli_eisaprobe(struct isa_device *idp); -static int stli_mcaprobe(struct isa_device *idp); -static int stli_brdinit(stlibrd_t *brdp); -static int stli_brdattach(stlibrd_t *brdp); -static int stli_initecp(stlibrd_t *brdp); -static int stli_initonb(stlibrd_t *brdp); -static int stli_initports(stlibrd_t *brdp); -static int stli_startbrd(stlibrd_t *brdp); -static void stli_poll(void *arg); -static __inline void stli_brdpoll(stlibrd_t *brdp, volatile cdkhdr_t *hdrp); -static __inline int stli_hostcmd(stlibrd_t *brdp, stliport_t *portp); -static __inline void stli_dodelaycmd(stliport_t *portp, - volatile cdkctrl_t *cp); -static void stli_mkasysigs(asysigs_t *sp, int dtr, int rts); -static long stli_mktiocm(unsigned long sigvalue); -static void stli_rxprocess(stlibrd_t *brdp, stliport_t *portp); -static void stli_flush(stliport_t *portp, int flag); -static void stli_start(struct tty *tp); -static void stli_stop(struct tty *tp, int rw); -static int stli_param(struct tty *tp, struct termios *tiosp); -static void stli_ttyoptim(stliport_t *portp, struct termios *tiosp); -static void stli_dtrwakeup(void *arg); -static int stli_initopen(stliport_t *portp); -static int stli_shutdownclose(stliport_t *portp); -static int stli_rawopen(stlibrd_t *brdp, stliport_t *portp, - unsigned long arg, int wait); -static int stli_rawclose(stlibrd_t *brdp, stliport_t *portp, - unsigned long arg, int wait); -static int stli_cmdwait(stlibrd_t *brdp, stliport_t *portp, - unsigned long cmd, void *arg, int size, int copyback); -static void stli_sendcmd(stlibrd_t *brdp, stliport_t *portp, - unsigned long cmd, void *arg, int size, int copyback); -static void stli_mkasyport(stliport_t *portp, asyport_t *pp, - struct termios *tiosp); -static int stli_memrw(dev_t dev, struct uio *uiop, int flag); -static int stli_memioctl(dev_t dev, unsigned long cmd, caddr_t data, - int flag, struct thread *td); -static int stli_getbrdstats(caddr_t data); -static int stli_getportstats(stliport_t *portp, caddr_t data); -static int stli_clrportstats(stliport_t *portp, caddr_t data); -static stliport_t *stli_getport(int brdnr, int panelnr, int portnr); - -static void stli_ecpinit(stlibrd_t *brdp); -static void stli_ecpenable(stlibrd_t *brdp); -static void stli_ecpdisable(stlibrd_t *brdp); -static void stli_ecpreset(stlibrd_t *brdp); -static char *stli_ecpgetmemptr(stlibrd_t *brdp, unsigned long offset, - int line); -static void stli_ecpintr(stlibrd_t *brdp); -static void stli_ecpeiinit(stlibrd_t *brdp); -static void stli_ecpeienable(stlibrd_t *brdp); -static void stli_ecpeidisable(stlibrd_t *brdp); -static void stli_ecpeireset(stlibrd_t *brdp); -static char *stli_ecpeigetmemptr(stlibrd_t *brdp, unsigned long offset, - int line); -static void stli_ecpmcenable(stlibrd_t *brdp); -static void stli_ecpmcdisable(stlibrd_t *brdp); -static void stli_ecpmcreset(stlibrd_t *brdp); -static char *stli_ecpmcgetmemptr(stlibrd_t *brdp, unsigned long offset, - int line); - -static void stli_onbinit(stlibrd_t *brdp); -static void stli_onbenable(stlibrd_t *brdp); -static void stli_onbdisable(stlibrd_t *brdp); -static void stli_onbreset(stlibrd_t *brdp); -static char *stli_onbgetmemptr(stlibrd_t *brdp, unsigned long offset, - int line); -static void stli_onbeinit(stlibrd_t *brdp); -static void stli_onbeenable(stlibrd_t *brdp); -static void stli_onbedisable(stlibrd_t *brdp); -static void stli_onbereset(stlibrd_t *brdp); -static char *stli_onbegetmemptr(stlibrd_t *brdp, unsigned long offset, - int line); -static void stli_bbyinit(stlibrd_t *brdp); -static void stli_bbyreset(stlibrd_t *brdp); -static char *stli_bbygetmemptr(stlibrd_t *brdp, unsigned long offset, - int line); -static void stli_stalinit(stlibrd_t *brdp); -static void stli_stalreset(stlibrd_t *brdp); -static char *stli_stalgetmemptr(stlibrd_t *brdp, unsigned long offset, - int line); - -/*****************************************************************************/ - -/* - * Declare the driver isa structure. - */ -struct isa_driver stlidriver = { - INTR_TYPE_TTY, - stliprobe, - stliattach, - stli_drvname -}; -COMPAT_ISA_DRIVER(stli, stlidriver); - -/*****************************************************************************/ - -#if VFREEBSD >= 220 - -/* - * FreeBSD-2.2+ kernel linkage. - */ - -static struct cdevsw stli_cdevsw = { - .d_version = D_VERSION, - .d_open = stliopen, - .d_close = stliclose, - .d_read = stliread, - .d_write = stliwrite, - .d_ioctl = stliioctl, - .d_name = stli_drvname, - .d_flags = D_TTY | D_NEEDGIANT, -}; - -#endif - -/*****************************************************************************/ - -static stlibrd_t *stli_brdalloc(void) -{ - stlibrd_t *brdp; - - brdp = (stlibrd_t *) malloc(sizeof(stlibrd_t), M_TTYS, M_NOWAIT|M_ZERO); - if (brdp == (stlibrd_t *) NULL) { - printf("STALLION: failed to allocate memory (size=%d)\n", - sizeof(stlibrd_t)); - return((stlibrd_t *) NULL); - } - return(brdp); -} - -/*****************************************************************************/ - -/* - * Find an available internal board number (unit number). The problem - * is that the same unit numbers can be assigned to different class - * boards - but we only want to maintain one setup board structures. - */ - -static int stli_findfreeunit(void) -{ - int i; - - for (i = 0; (i < STL_MAXBRDS); i++) - if (stli_brds[i] == (stlibrd_t *) NULL) - break; - return((i >= STL_MAXBRDS) ? -1 : i); -} - -/*****************************************************************************/ - -/* - * Try and determine the ISA board type. Hopefully the board - * configuration entry will help us out, using the flags field. - * If not, we may ne be able to determine the board type... - */ - -static int stli_isaprobe(struct isa_device *idp) -{ - int btype; - -#if DEBUG - printf("stli_isaprobe(idp=%x): unit=%d iobase=%x flags=%x\n", - (int) idp, idp->id_unit, idp->id_iobase, idp->id_flags); -#endif - - switch (idp->id_flags) { - case BRD_STALLION: - case BRD_BRUMBY4: - case BRD_BRUMBY8: - case BRD_BRUMBY16: - case BRD_ONBOARD: - case BRD_ONBOARD32: - case BRD_ECP: - btype = idp->id_flags; - break; - default: - btype = 0; - break; - } - return(btype); -} - -/*****************************************************************************/ - -/* - * Probe for an EISA board type. We should be able to read the EISA ID, - * that will tell us if a board is present or not... - */ - -static int stli_eisaprobe(struct isa_device *idp) -{ - int btype, eid; - -#if DEBUG - printf("stli_eisaprobe(idp=%x): unit=%d iobase=%x flags=%x\n", - (int) idp, idp->id_unit, idp->id_iobase, idp->id_flags); -#endif - -/* - * Firstly check if this is an EISA system. Do this by probing for - * the system board EISA ID. If this is not an EISA system then - * don't bother going any further! - */ - outb(0xc80, 0xff); - if (inb(0xc80) == 0xff) - return(0); - -/* - * Try and read the EISA ID from the board at specified address. - * If one is present it will tell us the board type as well. - */ - outb((idp->id_iobase + 0xc80), 0xff); - eid = inb(idp->id_iobase + 0xc80); - eid |= inb(idp->id_iobase + 0xc81) << 8; - if (eid != STL_EISAID) - return(0); - - btype = 0; - eid = inb(idp->id_iobase + 0xc82); - if (eid == ECP_EISAID) - btype = BRD_ECPE; - else if (eid == ONB_EISAID) - btype = BRD_ONBOARDE; - - outb((idp->id_iobase + 0xc84), 0x1); - return(btype); -} - -/*****************************************************************************/ - -/* - * Probe for an MCA board type. Not really sure how to do this yet, - * so for now just use the supplied flag specifier as board type... - */ - -static int stli_mcaprobe(struct isa_device *idp) -{ - int btype; - -#if DEBUG - printf("stli_mcaprobe(idp=%x): unit=%d iobase=%x flags=%x\n", - (int) idp, idp->id_unit, idp->id_iobase, idp->id_flags); -#endif - - switch (idp->id_flags) { - case BRD_ONBOARD2: - case BRD_ONBOARD2_32: - case BRD_ONBOARDRS: - case BRD_ECHMC: - case BRD_ECPMC: - btype = idp->id_flags; - break; - default: - btype = 0; - break; - } - return(0); -} - -/*****************************************************************************/ - -/* - * Probe for a board. This is involved, since we need to enable the - * shared memory region to see if the board is really there or not... - */ - -static int stliprobe(struct isa_device *idp) -{ - stlibrd_t *brdp; - int btype, bclass; - -#if DEBUG - printf("stliprobe(idp=%x): unit=%d iobase=%x flags=%x\n", (int) idp, - idp->id_unit, idp->id_iobase, idp->id_flags); -#endif - - if (idp->id_unit > STL_MAXBRDS) - return(0); - -/* - * First up determine what bus type of board we might be dealing - * with. It is easy to separate out the ISA from the EISA and MCA - * boards, based on their IO addresses. We may not be able to tell - * the EISA and MCA apart on IO address alone... - */ - bclass = 0; - if ((idp->id_iobase > 0) && (idp->id_iobase < 0x400)) { - bclass |= BRD_ISA; - } else { - /* ONboard2 range */ - if ((idp->id_iobase >= 0x700) && (idp->id_iobase < 0x900)) - bclass |= BRD_MCA; - /* EC-MCA ranges */ - if ((idp->id_iobase >= 0x7000) && (idp->id_iobase < 0x7400)) - bclass |= BRD_MCA; - if ((idp->id_iobase >= 0x8000) && (idp->id_iobase < 0xc000)) - bclass |= BRD_MCA; - /* EISA board range */ - if ((idp->id_iobase & ~0xf000) == 0) - bclass |= BRD_EISA; - } - - if ((bclass == 0) || (idp->id_iobase == 0)) - return(0); - -/* - * Based on the board bus type, try and figure out what it might be... - */ - btype = 0; - if (bclass & BRD_ISA) - btype = stli_isaprobe(idp); - if ((btype == 0) && (bclass & BRD_EISA)) - btype = stli_eisaprobe(idp); - if ((btype == 0) && (bclass & BRD_MCA)) - btype = stli_mcaprobe(idp); - if (btype == 0) - return(0); - -/* - * Go ahead and try probing for the shared memory region now. - * This way we will really know if the board is here... - */ - if ((brdp = stli_brdalloc()) == (stlibrd_t *) NULL) - return(0); - - brdp->brdnr = stli_findfreeunit(); - brdp->brdtype = btype; - brdp->unitid = idp->id_unit; - brdp->iobase = idp->id_iobase; - brdp->vaddr = idp->id_maddr; - brdp->paddr = vtophys(idp->id_maddr); - -#if DEBUG - printf("%s(%d): btype=%x unit=%d brd=%d io=%x mem=%lx(%p)\n", - __file__, __LINE__, btype, brdp->unitid, brdp->brdnr, - brdp->iobase, brdp->paddr, (void *) brdp->vaddr); -#endif - - stli_stliprobed[idp->id_unit] = brdp->brdnr; - stli_brdinit(brdp); - if ((brdp->state & BST_FOUND) == 0) { - stli_brds[brdp->brdnr] = (stlibrd_t *) NULL; - return(0); - } - stli_nrbrds++; - return(1); -} - -/*****************************************************************************/ - -/* - * Allocate resources for and initialize a board. - */ - -static int stliattach(struct isa_device *idp) -{ - stlibrd_t *brdp; - int brdnr; - -#if DEBUG - printf("stliattach(idp=%p): unit=%d iobase=%x\n", (void *) idp, - idp->id_unit, idp->id_iobase); -#endif - - brdnr = stli_stliprobed[idp->id_unit]; - brdp = stli_brds[brdnr]; - if (brdp == (stlibrd_t *) NULL) - return(0); - if (brdp->state & BST_FOUND) - stli_brdattach(brdp); - if (0) { - make_dev(&stli_cdevsw, 0, 0, 0, 0, "istallion_is_broken"); - } - return(1); -} - - -/*****************************************************************************/ - -STATIC int stliopen(dev_t dev, int flag, int mode, struct thread *td) -{ - struct tty *tp; - stliport_t *portp; - int error, callout, x; - -#if DEBUG - printf("stliopen(dev=%x,flag=%x,mode=%x,p=%x)\n", (int) dev, flag, - mode, (int) td); -#endif - -/* - * Firstly check if the supplied device number is a valid device. - */ - if (minor(dev) & STL_MEMDEV) - return(0); - - portp = stli_dev2port(dev); - if (portp == (stliport_t *) NULL) - return(ENXIO); - tp = &portp->tty; - dev->si_tty = tp; - callout = minor(dev) & STL_CALLOUTDEV; - error = 0; - - x = spltty(); - -stliopen_restart: -/* - * Wait here for the DTR drop timeout period to expire. - */ - while (portp->state & ST_DTRWAIT) { - error = tsleep(&portp->dtrwait, (TTIPRI | PCATCH), - "stlidtr", 0); - if (error) - goto stliopen_end; - } - -/* - * If the port is in its raw hardware initialization phase, then - * hold up here 'till it is done. - */ - while (portp->state & (ST_INITIALIZING | ST_CLOSING)) { - error = tsleep(&portp->state, (TTIPRI | PCATCH), - "stliraw", 0); - if (error) - goto stliopen_end; - } - -/* - * We have a valid device, so now we check if it is already open. - * If not then initialize the port hardware and set up the tty - * struct as required. - */ - if ((tp->t_state & TS_ISOPEN) == 0) { - tp->t_oproc = stli_start; - tp->t_param = stli_param; - tp->t_stop = stli_stop; - tp->t_dev = dev; - tp->t_termios = callout ? portp->initouttios : - portp->initintios; - stli_initopen(portp); - wakeup(&portp->state); - if ((portp->sigs & TIOCM_CD) || callout) - (*linesw[tp->t_line].l_modem)(tp, 1); - } else { - if (callout) { - if (portp->callout == 0) { - error = EBUSY; - goto stliopen_end; - } - } else { - if (portp->callout != 0) { - if (flag & O_NONBLOCK) { - error = EBUSY; - goto stliopen_end; - } - error = tsleep(&portp->callout, - (TTIPRI | PCATCH), "stlicall", 0); - if (error) - goto stliopen_end; - goto stliopen_restart; - } - } - if ((tp->t_state & TS_XCLUDE) && - suser(td)) { - error = EBUSY; - goto stliopen_end; - } - } - -/* - * If this port is not the callout device and we do not have carrier - * then we need to sleep, waiting for it to be asserted. - */ - if (((tp->t_state & TS_CARR_ON) == 0) && !callout && - ((tp->t_cflag & CLOCAL) == 0) && - ((flag & O_NONBLOCK) == 0)) { - portp->waitopens++; - error = tsleep(TSA_CARR_ON(tp), (TTIPRI | PCATCH), "stlidcd",0); - portp->waitopens--; - if (error) - goto stliopen_end; - goto stliopen_restart; - } - -/* - * Open the line discipline. - */ - error = (*linesw[tp->t_line].l_open)(dev, tp); - stli_ttyoptim(portp, &tp->t_termios); - if ((tp->t_state & TS_ISOPEN) && callout) - portp->callout = 1; - -/* - * If for any reason we get to here and the port is not actually - * open then close of the physical hardware - no point leaving it - * active when the open failed... - */ -stliopen_end: - splx(x); - if (((tp->t_state & TS_ISOPEN) == 0) && (portp->waitopens == 0)) - stli_shutdownclose(portp); - - return(error); -} - -/*****************************************************************************/ - -STATIC int stliclose(dev_t dev, int flag, int mode, struct thread *td) -{ - struct tty *tp; - stliport_t *portp; - int x; - -#if DEBUG - printf("stliclose(dev=%s,flag=%x,mode=%x,p=%p)\n", - devtoname(dev), flag, mode, (void *) td); -#endif - - if (minor(dev) & STL_MEMDEV) - return(0); - - portp = stli_dev2port(dev); - if (portp == (stliport_t *) NULL) - return(ENXIO); - tp = &portp->tty; - - x = spltty(); - (*linesw[tp->t_line].l_close)(tp, flag); - stli_ttyoptim(portp, &tp->t_termios); - stli_shutdownclose(portp); - ttyclose(tp); - splx(x); - return(0); -} - - -STATIC int stliread(dev_t dev, struct uio *uiop, int flag) -{ - -#if DEBUG - printf("stliread(dev=%s,uiop=%p,flag=%x)\n", devtoname(dev), - (void *) uiop, flag); -#endif - - if (minor(dev) & STL_MEMDEV) - return(stli_memrw(dev, uiop, flag)); - else - return(ttyread(dev, uiop, flag)); -} - -/*****************************************************************************/ - -#if VFREEBSD >= 220 - -STATIC void stli_stop(struct tty *tp, int rw) -{ -#if DEBUG - printf("stli_stop(tp=%x,rw=%x)\n", (int) tp, rw); -#endif - - stli_flush((stliport_t *) tp, rw); -} - -#else - -STATIC int stlistop(struct tty *tp, int rw) -{ -#if DEBUG - printf("stlistop(tp=%x,rw=%x)\n", (int) tp, rw); -#endif - - stli_flush((stliport_t *) tp, rw); - return(0); -} - -#endif - -/*****************************************************************************/ - -STATIC int stliwrite(dev_t dev, struct uio *uiop, int flag) -{ -#if DEBUG - printf("stliwrite(dev=%s,uiop=%p,flag=%x)\n", devtoname(dev), - (void *) uiop, flag); -#endif - - if (minor(dev) & STL_MEMDEV) - return(stli_memrw(dev, uiop, flag)); - else - return(ttywrite(dev, uiop, flag)); -} - -/*****************************************************************************/ - -STATIC int stliioctl(dev_t dev, unsigned long cmd, caddr_t data, int flag, - struct thread *td) -{ - struct termios *newtios, *localtios; - struct tty *tp; - stlibrd_t *brdp; - stliport_t *portp; - long arg; - int error, i, x; - -#if DEBUG - printf("stliioctl(dev=%s,cmd=%lx,data=%p,flag=%x,p=%p)\n", - devtoname(dev), cmd, (void *) data, flag, (void *) td); -#endif - - if (minor(dev) & STL_MEMDEV) - return(stli_memioctl(dev, cmd, data, flag, td)); - - portp = stli_dev2port(dev); - if (portp == (stliport_t *) NULL) - return(ENODEV); - if ((brdp = stli_brds[portp->brdnr]) == (stlibrd_t *) NULL) - return(ENODEV); - tp = &portp->tty; - error = 0; - -/* - * First up handle ioctls on the control devices. - */ - if (minor(dev) & STL_CTRLDEV) { - if ((minor(dev) & STL_CTRLDEV) == STL_CTRLINIT) - localtios = (minor(dev) & STL_CALLOUTDEV) ? - &portp->initouttios : &portp->initintios; - else if ((minor(dev) & STL_CTRLDEV) == STL_CTRLLOCK) - localtios = (minor(dev) & STL_CALLOUTDEV) ? - &portp->lockouttios : &portp->lockintios; - else - return(ENODEV); - - switch (cmd) { - case TIOCSETA: - if ((error = suser(td)) == 0) - *localtios = *((struct termios *) data); - break; - case TIOCGETA: - *((struct termios *) data) = *localtios; - break; - case TIOCGETD: - *((int *) data) = TTYDISC; - break; - case TIOCGWINSZ: - bzero(data, sizeof(struct winsize)); - break; - default: - error = ENOTTY; - break; - } - return(error); - } - -/* - * Deal with 4.3 compatibility issues if we have too... - */ -#if defined(COMPAT_43) || defined(COMPAT_SUNOS) - if (1) { - struct termios tios; - unsigned long oldcmd; - - tios = tp->t_termios; - oldcmd = cmd; - if ((error = ttsetcompat(tp, &cmd, data, &tios))) - return(error); - if (cmd != oldcmd) - data = (caddr_t) &tios; - } -#endif - -/* - * Carry out some pre-cmd processing work first... - * Hmmm, not so sure we want this, disable for now... - */ - if ((cmd == TIOCSETA) || (cmd == TIOCSETAW) || (cmd == TIOCSETAF)) { - newtios = (struct termios *) data; - localtios = (minor(dev) & STL_CALLOUTDEV) ? &portp->lockouttios : - &portp->lockintios; - - newtios->c_iflag = (tp->t_iflag & localtios->c_iflag) | - (newtios->c_iflag & ~localtios->c_iflag); - newtios->c_oflag = (tp->t_oflag & localtios->c_oflag) | - (newtios->c_oflag & ~localtios->c_oflag); - newtios->c_cflag = (tp->t_cflag & localtios->c_cflag) | - (newtios->c_cflag & ~localtios->c_cflag); - newtios->c_lflag = (tp->t_lflag & localtios->c_lflag) | - (newtios->c_lflag & ~localtios->c_lflag); - for (i = 0; (i < NCCS); i++) { - if (localtios->c_cc[i] != 0) - newtios->c_cc[i] = tp->t_cc[i]; - } - if (localtios->c_ispeed != 0) - newtios->c_ispeed = tp->t_ispeed; - if (localtios->c_ospeed != 0) - newtios->c_ospeed = tp->t_ospeed; - } - -/* - * Call the line discipline and the common command processing to - * process this command (if they can). - */ - error = (*linesw[tp->t_line].l_ioctl)(tp, cmd, data, flag, td); - if (error != ENOIOCTL) - return(error); - - x = spltty(); - error = ttioctl(tp, cmd, data, flag); - stli_ttyoptim(portp, &tp->t_termios); - if (error != ENOIOCTL) { - splx(x); - return(error); - } - - error = 0; - -/* - * Process local commands here. These are all commands that only we - * can take care of (they all rely on actually doing something special - * to the actual hardware). - */ - switch (cmd) { - case TIOCSBRK: - arg = BREAKON; - error = stli_cmdwait(brdp, portp, A_BREAK, &arg, - sizeof(unsigned long), 0); - break; - case TIOCCBRK: - arg = BREAKOFF; - error = stli_cmdwait(brdp, portp, A_BREAK, &arg, - sizeof(unsigned long), 0); - break; - case TIOCSDTR: - stli_mkasysigs(&portp->asig, 1, -1); - error = stli_cmdwait(brdp, portp, A_SETSIGNALS, &portp->asig, - sizeof(asysigs_t), 0); - break; - case TIOCCDTR: - stli_mkasysigs(&portp->asig, 0, -1); - error = stli_cmdwait(brdp, portp, A_SETSIGNALS, &portp->asig, - sizeof(asysigs_t), 0); - break; - case TIOCMSET: - i = *((int *) data); - stli_mkasysigs(&portp->asig, ((i & TIOCM_DTR) ? 1 : 0), - ((i & TIOCM_RTS) ? 1 : 0)); - error = stli_cmdwait(brdp, portp, A_SETSIGNALS, &portp->asig, - sizeof(asysigs_t), 0); - break; - case TIOCMBIS: - i = *((int *) data); - stli_mkasysigs(&portp->asig, ((i & TIOCM_DTR) ? 1 : -1), - ((i & TIOCM_RTS) ? 1 : -1)); - error = stli_cmdwait(brdp, portp, A_SETSIGNALS, &portp->asig, - sizeof(asysigs_t), 0); - break; - case TIOCMBIC: - i = *((int *) data); - stli_mkasysigs(&portp->asig, ((i & TIOCM_DTR) ? 0 : -1), - ((i & TIOCM_RTS) ? 0 : -1)); - error = stli_cmdwait(brdp, portp, A_SETSIGNALS, &portp->asig, - sizeof(asysigs_t), 0); - break; - case TIOCMGET: - if ((error = stli_cmdwait(brdp, portp, A_GETSIGNALS, - &portp->asig, sizeof(asysigs_t), 1)) < 0) - break; - portp->sigs = stli_mktiocm(portp->asig.sigvalue); - *((int *) data) = (portp->sigs | TIOCM_LE); - break; - case TIOCMSDTRWAIT: - if ((error = suser(td)) == 0) - portp->dtrwait = *((int *) data) * hz / 100; - break; - case TIOCMGDTRWAIT: - *((int *) data) = portp->dtrwait * 100 / hz; - break; - case TIOCTIMESTAMP: - portp->dotimestamp = 1; - *((struct timeval *) data) = portp->timestamp; - break; - default: - error = ENOTTY; - break; - } - splx(x); - - return(error); -} - -/*****************************************************************************/ - -/* - * Convert the specified minor device number into a port struct - * pointer. Return NULL if the device number is not a valid port. - */ - -STATIC stliport_t *stli_dev2port(dev_t dev) -{ - stlibrd_t *brdp; - - brdp = stli_brds[MKDEV2BRD(dev)]; - if (brdp == (stlibrd_t *) NULL) - return((stliport_t *) NULL); - if ((brdp->state & BST_STARTED) == 0) - return((stliport_t *) NULL); - return(brdp->ports[MKDEV2PORT(dev)]); -} - -/*****************************************************************************/ - -/* - * Carry out first open operations on a port. This involves a number of - * commands to be sent to the slave. We need to open the port, set the - * notification events, set the initial port settings, get and set the - * initial signal values. We sleep and wait in between each one. But - * this still all happens pretty quickly. - */ - -static int stli_initopen(stliport_t *portp) -{ - stlibrd_t *brdp; - asynotify_t nt; - asyport_t aport; - int rc; - -#if DEBUG - printf("stli_initopen(portp=%x)\n", (int) portp); -#endif - - if ((brdp = stli_brds[portp->brdnr]) == (stlibrd_t *) NULL) - return(ENXIO); - if (portp->state & ST_INITIALIZED) - return(0); - portp->state |= ST_INITIALIZED; - - if ((rc = stli_rawopen(brdp, portp, 0, 1)) < 0) - return(rc); - - bzero(&nt, sizeof(asynotify_t)); - nt.data = (DT_TXLOW | DT_TXEMPTY | DT_RXBUSY | DT_RXBREAK); - nt.signal = SG_DCD; - if ((rc = stli_cmdwait(brdp, portp, A_SETNOTIFY, &nt, - sizeof(asynotify_t), 0)) < 0) - return(rc); - - stli_mkasyport(portp, &aport, &portp->tty.t_termios); - if ((rc = stli_cmdwait(brdp, portp, A_SETPORT, &aport, - sizeof(asyport_t), 0)) < 0) - return(rc); - - portp->state |= ST_GETSIGS; - if ((rc = stli_cmdwait(brdp, portp, A_GETSIGNALS, &portp->asig, - sizeof(asysigs_t), 1)) < 0) - return(rc); - if (portp->state & ST_GETSIGS) { - portp->sigs = stli_mktiocm(portp->asig.sigvalue); - portp->state &= ~ST_GETSIGS; - } - - stli_mkasysigs(&portp->asig, 1, 1); - if ((rc = stli_cmdwait(brdp, portp, A_SETSIGNALS, &portp->asig, - sizeof(asysigs_t), 0)) < 0) - return(rc); - - return(0); -} - -/*****************************************************************************/ - -/* - * Shutdown the hardware of a port. - */ - -static int stli_shutdownclose(stliport_t *portp) -{ - stlibrd_t *brdp; - struct tty *tp; - int x; - -#if DEBUG - printf("stli_shutdownclose(portp=%p): brdnr=%d panelnr=%d portnr=%d\n", - (void *) portp, portp->brdnr, portp->panelnr, portp->portnr); -#endif - - if ((brdp = stli_brds[portp->brdnr]) == (stlibrd_t *) NULL) - return(ENXIO); - - tp = &portp->tty; - stli_rawclose(brdp, portp, 0, 0); - stli_flush(portp, (FWRITE | FREAD)); - if (tp->t_cflag & HUPCL) { - x = spltty(); - stli_mkasysigs(&portp->asig, 0, 0); - if (portp->state & ST_CMDING) { - portp->state |= ST_DOSIGS; - } else { - stli_sendcmd(brdp, portp, A_SETSIGNALS, - &portp->asig, sizeof(asysigs_t), 0); - } - splx(x); - if (portp->dtrwait != 0) { - portp->state |= ST_DTRWAIT; - timeout(stli_dtrwakeup, portp, portp->dtrwait); - } - } - portp->callout = 0; - portp->state &= ~ST_INITIALIZED; - wakeup(&portp->callout); - wakeup(TSA_CARR_ON(tp)); - return(0); -} - -/*****************************************************************************/ - -/* - * Clear the DTR waiting flag, and wake up any sleepers waiting for - * DTR wait period to finish. - */ - -static void stli_dtrwakeup(void *arg) -{ - stliport_t *portp; - - portp = (stliport_t *) arg; - portp->state &= ~ST_DTRWAIT; - wakeup(&portp->dtrwait); -} - -/*****************************************************************************/ - -/* - * Send an open message to the slave. This will sleep waiting for the - * acknowledgement, so must have user context. We need to co-ordinate - * with close events here, since we don't want open and close events - * to overlap. - */ - -static int stli_rawopen(stlibrd_t *brdp, stliport_t *portp, unsigned long arg, int wait) -{ - volatile cdkhdr_t *hdrp; - volatile cdkctrl_t *cp; - volatile unsigned char *bits; - int rc, x; - -#if DEBUG - printf("stli_rawopen(brdp=%x,portp=%x,arg=%x,wait=%d)\n", (int) brdp, - (int) portp, (int) arg, wait); -#endif - - x = spltty(); - -/* - * Slave is already closing this port. This can happen if a hangup - * occurs on this port. So we must wait until it is complete. The - * order of opens and closes may not be preserved across shared - * memory, so we must wait until it is complete. - */ - while (portp->state & ST_CLOSING) { - rc = tsleep(&portp->state, (TTIPRI | PCATCH), "stliraw", 0); - if (rc) { - splx(x); - return(rc); - } - } - -/* - * Everything is ready now, so write the open message into shared - * memory. Once the message is in set the service bits to say that - * this port wants service. - */ - EBRDENABLE(brdp); - cp = &((volatile cdkasy_t *) EBRDGETMEMPTR(brdp, portp->addr))->ctrl; - cp->openarg = arg; - cp->open = 1; - hdrp = (volatile cdkhdr_t *) EBRDGETMEMPTR(brdp, CDK_CDKADDR); - bits = ((volatile unsigned char *) hdrp) + brdp->slaveoffset + - portp->portidx; - *bits |= portp->portbit; - EBRDDISABLE(brdp); - - if (wait == 0) { - splx(x); - return(0); - } - -/* - * Slave is in action, so now we must wait for the open acknowledgment - * to come back. - */ - rc = 0; - portp->state |= ST_OPENING; - while (portp->state & ST_OPENING) { - rc = tsleep(&portp->state, (TTIPRI | PCATCH), "stliraw", 0); - if (rc) { - splx(x); - return(rc); - } - } - splx(x); - - if ((rc == 0) && (portp->rc != 0)) - rc = EIO; - return(rc); -} - -/*****************************************************************************/ - -/* - * Send a close message to the slave. Normally this will sleep waiting - * for the acknowledgement, but if wait parameter is 0 it will not. If - * wait is true then must have user context (to sleep). - */ - -static int stli_rawclose(stlibrd_t *brdp, stliport_t *portp, unsigned long arg, int wait) -{ - volatile cdkhdr_t *hdrp; - volatile cdkctrl_t *cp; - volatile unsigned char *bits; - int rc, x; - -#if DEBUG - printf("stli_rawclose(brdp=%x,portp=%x,arg=%x,wait=%d)\n", (int) brdp, - (int) portp, (int) arg, wait); -#endif - - x = spltty(); - -/* - * Slave is already closing this port. This can happen if a hangup - * occurs on this port. - */ - if (wait) { - while (portp->state & ST_CLOSING) { - rc = tsleep(&portp->state, (TTIPRI | PCATCH), - "stliraw", 0); - if (rc) { - splx(x); - return(rc); - } - } - } - -/* - * Write the close command into shared memory. - */ - EBRDENABLE(brdp); - cp = &((volatile cdkasy_t *) EBRDGETMEMPTR(brdp, portp->addr))->ctrl; - cp->closearg = arg; - cp->close = 1; - hdrp = (volatile cdkhdr_t *) EBRDGETMEMPTR(brdp, CDK_CDKADDR); - bits = ((volatile unsigned char *) hdrp) + brdp->slaveoffset + - portp->portidx; - *bits |= portp->portbit; - EBRDDISABLE(brdp); - - portp->state |= ST_CLOSING; - if (wait == 0) { - splx(x); - return(0); - } - -/* - * Slave is in action, so now we must wait for the open acknowledgment - * to come back. - */ - rc = 0; - while (portp->state & ST_CLOSING) { - rc = tsleep(&portp->state, (TTIPRI | PCATCH), "stliraw", 0); - if (rc) { - splx(x); - return(rc); - } - } - splx(x); - - if ((rc == 0) && (portp->rc != 0)) - rc = EIO; - return(rc); -} - -/*****************************************************************************/ - -/* - * Send a command to the slave and wait for the response. This must - * have user context (it sleeps). This routine is generic in that it - * can send any type of command. Its purpose is to wait for that command - * to complete (as opposed to initiating the command then returning). - */ - -static int stli_cmdwait(stlibrd_t *brdp, stliport_t *portp, unsigned long cmd, void *arg, int size, int copyback) -{ - int rc, x; - -#if DEBUG - printf("stli_cmdwait(brdp=%x,portp=%x,cmd=%x,arg=%x,size=%d," - "copyback=%d)\n", (int) brdp, (int) portp, (int) cmd, - (int) arg, size, copyback); -#endif - - x = spltty(); - while (portp->state & ST_CMDING) { - rc = tsleep(&portp->state, (TTIPRI | PCATCH), "stliraw", 0); - if (rc) { - splx(x); - return(rc); - } - } - - stli_sendcmd(brdp, portp, cmd, arg, size, copyback); - - while (portp->state & ST_CMDING) { - rc = tsleep(&portp->state, (TTIPRI | PCATCH), "stliraw", 0); - if (rc) { - splx(x); - return(rc); - } - } - splx(x); - - if (portp->rc != 0) - return(EIO); - return(0); -} - -/*****************************************************************************/ - -/* - * Start (or continue) the transfer of TX data on this port. If the - * port is not currently busy then load up the interrupt ring queue - * buffer and kick of the transmitter. If the port is running low on - * TX data then refill the ring queue. This routine is also used to - * activate input flow control! - */ - -static void stli_start(struct tty *tp) -{ - volatile cdkasy_t *ap; - volatile cdkhdr_t *hdrp; - volatile unsigned char *bits; - unsigned char *shbuf; - stliport_t *portp; - stlibrd_t *brdp; - unsigned int len, stlen, head, tail, size; - int count, x; - - portp = (stliport_t *) tp; - -#if DEBUG - printf("stli_start(tp=%x): brdnr=%d portnr=%d\n", (int) tp, - portp->brdnr, portp->portnr); -#endif - - x = spltty(); - -#if VFREEBSD == 205 -/* - * Check if the output cooked clist buffers are near empty, wake up - * the line discipline to fill it up. - */ - if (tp->t_outq.c_cc <= tp->t_lowat) { - if (tp->t_state & TS_ASLEEP) { - tp->t_state &= ~TS_ASLEEP; - wakeup(&tp->t_outq); - } - selwakeuppri(&tp->t_wsel, TTOPRI); - } -#endif - - if (tp->t_state & (TS_TIMEOUT | TS_TTSTOP)) { - splx(x); - return; - } - -/* - * Copy data from the clists into the interrupt ring queue. This will - * require at most 2 copys... What we do is calculate how many chars - * can fit into the ring queue, and how many can fit in 1 copy. If after - * the first copy there is still more room then do the second copy. - */ - if (tp->t_outq.c_cc != 0) { - brdp = stli_brds[portp->brdnr]; - if (brdp == (stlibrd_t *) NULL) { - splx(x); - return; - } - - EBRDENABLE(brdp); - ap = (volatile cdkasy_t *) EBRDGETMEMPTR(brdp, portp->addr); - head = (unsigned int) ap->txq.head; - tail = (unsigned int) ap->txq.tail; - if (tail != ((unsigned int) ap->txq.tail)) - tail = (unsigned int) ap->txq.tail; - size = portp->txsize; - if (head >= tail) { - len = size - (head - tail) - 1; - stlen = size - head; - } else { - len = tail - head - 1; - stlen = len; - } - - count = 0; - shbuf = (char *) EBRDGETMEMPTR(brdp, portp->txoffset); - - if (len > 0) { - stlen = MIN(len, stlen); - count = q_to_b(&tp->t_outq, (shbuf + head), stlen); - len -= count; - head += count; - if (head >= size) { - head = 0; - if (len > 0) { - stlen = q_to_b(&tp->t_outq, shbuf, len); - head += stlen; - count += stlen; - } - } - } - - ap = (volatile cdkasy_t *) EBRDGETMEMPTR(brdp, portp->addr); - ap->txq.head = head; - hdrp = (volatile cdkhdr_t *) EBRDGETMEMPTR(brdp, CDK_CDKADDR); - bits = ((volatile unsigned char *) hdrp) + brdp->slaveoffset + - portp->portidx; - *bits |= portp->portbit; - portp->state |= ST_TXBUSY; - tp->t_state |= TS_BUSY; - - EBRDDISABLE(brdp); - } - -#if VFREEBSD != 205 -/* - * Do any writer wakeups. - */ - ttwwakeup(tp); -#endif - - splx(x); -} - -/*****************************************************************************/ - -/* - * Send a new port configuration to the slave. - */ - -static int stli_param(struct tty *tp, struct termios *tiosp) -{ - stlibrd_t *brdp; - stliport_t *portp; - asyport_t aport; - int x, rc; - - portp = (stliport_t *) tp; - if ((brdp = stli_brds[portp->brdnr]) == (stlibrd_t *) NULL) - return(ENXIO); - - x = spltty(); - stli_mkasyport(portp, &aport, tiosp); - /* can we sleep here? */ - rc = stli_cmdwait(brdp, portp, A_SETPORT, &aport, sizeof(asyport_t), 0); - stli_ttyoptim(portp, tiosp); - splx(x); - return(rc); -} - -/*****************************************************************************/ - -/* - * Flush characters from the lower buffer. We may not have user context - * so we cannot sleep waiting for it to complete. Also we need to check - * if there is chars for this port in the TX cook buffer, and flush them - * as well. - */ - -static void stli_flush(stliport_t *portp, int flag) -{ - stlibrd_t *brdp; - unsigned long ftype; - int x; - -#if DEBUG - printf("stli_flush(portp=%x,flag=%x)\n", (int) portp, flag); -#endif - - if (portp == (stliport_t *) NULL) - return; - if ((portp->brdnr < 0) || (portp->brdnr >= stli_nrbrds)) - return; - brdp = stli_brds[portp->brdnr]; - if (brdp == (stlibrd_t *) NULL) - return; - - x = spltty(); - if (portp->state & ST_CMDING) { - portp->state |= (flag & FWRITE) ? ST_DOFLUSHTX : 0; - portp->state |= (flag & FREAD) ? ST_DOFLUSHRX : 0; - } else { - ftype = (flag & FWRITE) ? FLUSHTX : 0; - ftype |= (flag & FREAD) ? FLUSHRX : 0; - portp->state &= ~(ST_DOFLUSHTX | ST_DOFLUSHRX); - stli_sendcmd(brdp, portp, A_FLUSH, &ftype, - sizeof(unsigned long), 0); - } - if ((flag & FREAD) && (stli_rxtmpport == portp)) - stli_rxtmplen = 0; - splx(x); -} - -/*****************************************************************************/ - -/* - * Generic send command routine. This will send a message to the slave, - * of the specified type with the specified argument. Must be very - * carefull of data that will be copied out from shared memory - - * containing command results. The command completion is all done from - * a poll routine that does not have user coontext. Therefore you cannot - * copy back directly into user space, or to the kernel stack of a - * process. This routine does not sleep, so can be called from anywhere, - * and must be called with interrupt locks set. - */ - -static void stli_sendcmd(stlibrd_t *brdp, stliport_t *portp, unsigned long cmd, void *arg, int size, int copyback) -{ - volatile cdkhdr_t *hdrp; - volatile cdkctrl_t *cp; - volatile unsigned char *bits; - -#if DEBUG - printf("stli_sendcmd(brdp=%x,portp=%x,cmd=%x,arg=%x,size=%d," - "copyback=%d)\n", (int) brdp, (int) portp, (int) cmd, - (int) arg, size, copyback); -#endif - - if (portp->state & ST_CMDING) { - printf("STALLION: command already busy, cmd=%x!\n", (int) cmd); - return; - } - - EBRDENABLE(brdp); - cp = &((volatile cdkasy_t *) EBRDGETMEMPTR(brdp, portp->addr))->ctrl; - if (size > 0) { - bcopy(arg, (void *) &(cp->args[0]), size); - if (copyback) { - portp->argp = arg; - portp->argsize = size; - } - } - cp->status = 0; - cp->cmd = cmd; - hdrp = (volatile cdkhdr_t *) EBRDGETMEMPTR(brdp, CDK_CDKADDR); - bits = ((volatile unsigned char *) hdrp) + brdp->slaveoffset + - portp->portidx; - *bits |= portp->portbit; - portp->state |= ST_CMDING; - EBRDDISABLE(brdp); -} - -/*****************************************************************************/ - -/* - * Read data from shared memory. This assumes that the shared memory - * is enabled and that interrupts are off. Basically we just empty out - * the shared memory buffer into the tty buffer. Must be carefull to - * handle the case where we fill up the tty buffer, but still have - * more chars to unload. - */ - -static void stli_rxprocess(stlibrd_t *brdp, stliport_t *portp) -{ - volatile cdkasyrq_t *rp; - volatile char *shbuf; - struct tty *tp; - unsigned int head, tail, size; - unsigned int len, stlen, i; - int ch; - -#if DEBUG - printf("stli_rxprocess(brdp=%x,portp=%d)\n", (int) brdp, (int) portp); -#endif - - tp = &portp->tty; - if ((tp->t_state & TS_ISOPEN) == 0) { - stli_flush(portp, FREAD); - return; - } - if (tp->t_state & TS_TBLOCK) - return; - - rp = &((volatile cdkasy_t *) EBRDGETMEMPTR(brdp, portp->addr))->rxq; - head = (unsigned int) rp->head; - if (head != ((unsigned int) rp->head)) - head = (unsigned int) rp->head; - tail = (unsigned int) rp->tail; - size = portp->rxsize; - if (head >= tail) { - len = head - tail; - stlen = len; - } else { - len = size - (tail - head); - stlen = size - tail; - } - - if (len == 0) - return; - - shbuf = (volatile char *) EBRDGETMEMPTR(brdp, portp->rxoffset); - -/* - * If we can bypass normal LD processing then just copy direct - * from board shared memory into the tty buffers. - */ - if (tp->t_state & TS_CAN_BYPASS_L_RINT) { - if (((tp->t_rawq.c_cc + len) >= TTYHOG) && - ((tp->t_cflag & CRTS_IFLOW) || (tp->t_iflag & IXOFF)) && - ((tp->t_state & TS_TBLOCK) == 0)) { - ch = TTYHOG - tp->t_rawq.c_cc - 1; - len = (ch > 0) ? ch : 0; - stlen = MIN(stlen, len); - tp->t_state |= TS_TBLOCK; - } - i = b_to_q((char *) (shbuf + tail), stlen, &tp->t_rawq); - tail += stlen; - len -= stlen; - if (tail >= size) { - tail = 0; - i += b_to_q((char *) shbuf, len, &tp->t_rawq); - tail += len; - } - portp->rxlost += i; - ttwakeup(tp); - rp = &((volatile cdkasy_t *) - EBRDGETMEMPTR(brdp, portp->addr))->rxq; - rp->tail = tail; - - } else { -/* - * Copy the data from board shared memory into a local - * memory buffer. Then feed them from here into the LD. - * We don't want to go into board shared memory one char - * at a time, it is too slow... - */ - if (len > TTYHOG) { - len = TTYHOG - 1; - stlen = min(len, stlen); - } - stli_rxtmpport = portp; - stli_rxtmplen = len; - bcopy((char *) (shbuf + tail), &stli_rxtmpbuf[0], stlen); - len -= stlen; - if (len > 0) - bcopy((char *) shbuf, &stli_rxtmpbuf[stlen], len); - - for (i = 0; (i < stli_rxtmplen); i++) { - ch = (unsigned char) stli_rxtmpbuf[i]; - (*linesw[tp->t_line].l_rint)(ch, tp); - } - EBRDENABLE(brdp); - rp = &((volatile cdkasy_t *) - EBRDGETMEMPTR(brdp, portp->addr))->rxq; - if (stli_rxtmplen == 0) { - head = (unsigned int) rp->head; - if (head != ((unsigned int) rp->head)) - head = (unsigned int) rp->head; - tail = head; - } else { - tail += i; - if (tail >= size) - tail -= size; - } - rp->tail = tail; - stli_rxtmpport = (stliport_t *) NULL; - stli_rxtmplen = 0; - } - - portp->state |= ST_RXING; -} - -/*****************************************************************************/ - -/* - * Set up and carry out any delayed commands. There is only a small set - * of slave commands that can be done "off-level". So it is not too - * difficult to deal with them as a special case here. - */ - -static __inline void stli_dodelaycmd(stliport_t *portp, volatile cdkctrl_t *cp) -{ - int cmd; - - if (portp->state & ST_DOSIGS) { - if ((portp->state & ST_DOFLUSHTX) && - (portp->state & ST_DOFLUSHRX)) - cmd = A_SETSIGNALSF; - else if (portp->state & ST_DOFLUSHTX) - cmd = A_SETSIGNALSFTX; - else if (portp->state & ST_DOFLUSHRX) - cmd = A_SETSIGNALSFRX; - else - cmd = A_SETSIGNALS; - portp->state &= ~(ST_DOFLUSHTX | ST_DOFLUSHRX | ST_DOSIGS); - bcopy((void *) &portp->asig, (void *) &(cp->args[0]), - sizeof(asysigs_t)); - cp->status = 0; - cp->cmd = cmd; - portp->state |= ST_CMDING; - } else if ((portp->state & ST_DOFLUSHTX) || - (portp->state & ST_DOFLUSHRX)) { - cmd = ((portp->state & ST_DOFLUSHTX) ? FLUSHTX : 0); - cmd |= ((portp->state & ST_DOFLUSHRX) ? FLUSHRX : 0); - portp->state &= ~(ST_DOFLUSHTX | ST_DOFLUSHRX); - bcopy((void *) &cmd, (void *) &(cp->args[0]), sizeof(int)); - cp->status = 0; - cp->cmd = A_FLUSH; - portp->state |= ST_CMDING; - } -} - -/*****************************************************************************/ - -/* - * Host command service checking. This handles commands or messages - * coming from the slave to the host. Must have board shared memory - * enabled and interrupts off when called. Notice that by servicing the - * read data last we don't need to change the shared memory pointer - * during processing (which is a slow IO operation). - * Return value indicates if this port is still awaiting actions from - * the slave (like open, command, or even TX data being sent). If 0 - * then port is still busy, otherwise the port request bit flag is - * returned. - */ - -static __inline int stli_hostcmd(stlibrd_t *brdp, stliport_t *portp) -{ - volatile cdkasy_t *ap; - volatile cdkctrl_t *cp; - asynotify_t nt; - unsigned long oldsigs; - unsigned int head, tail; - int rc, donerx; - -#if DEBUG - printf("stli_hostcmd(brdp=%x,portp=%x)\n", (int) brdp, (int) portp); -#endif - - ap = (volatile cdkasy_t *) EBRDGETMEMPTR(brdp, portp->addr); - cp = &ap->ctrl; - -/* - * Check if we are waiting for an open completion message. - */ - if (portp->state & ST_OPENING) { - rc = (int) cp->openarg; - if ((cp->open == 0) && (rc != 0)) { - if (rc > 0) - rc--; - cp->openarg = 0; - portp->rc = rc; - portp->state &= ~ST_OPENING; - wakeup(&portp->state); - } - } - -/* - * Check if we are waiting for a close completion message. - */ - if (portp->state & ST_CLOSING) { - rc = (int) cp->closearg; - if ((cp->close == 0) && (rc != 0)) { - if (rc > 0) - rc--; - cp->closearg = 0; - portp->rc = rc; - portp->state &= ~ST_CLOSING; - wakeup(&portp->state); - } - } - -/* - * Check if we are waiting for a command completion message. We may - * need to copy out the command results associated with this command. - */ - if (portp->state & ST_CMDING) { - rc = cp->status; - if ((cp->cmd == 0) && (rc != 0)) { - if (rc > 0) - rc--; - if (portp->argp != (void *) NULL) { - bcopy((void *) &(cp->args[0]), portp->argp, - portp->argsize); - portp->argp = (void *) NULL; - } - cp->status = 0; - portp->rc = rc; - portp->state &= ~ST_CMDING; - stli_dodelaycmd(portp, cp); - wakeup(&portp->state); - } - } - -/* - * Check for any notification messages ready. This includes lots of - * different types of events - RX chars ready, RX break received, - * TX data low or empty in the slave, modem signals changed state. - * Must be extremely carefull if we call to the LD, it may call - * other routines of ours that will disable the memory... - * Something else we need to be carefull of is race conditions on - * marking the TX as empty... - */ - donerx = 0; - - if (ap->notify) { - struct tty *tp; - - nt = ap->changed; - ap->notify = 0; - tp = &portp->tty; - - if (nt.signal & SG_DCD) { - oldsigs = portp->sigs; - portp->sigs = stli_mktiocm(nt.sigvalue); - portp->state &= ~ST_GETSIGS; - (*linesw[tp->t_line].l_modem)(tp, - (portp->sigs & TIOCM_CD)); - EBRDENABLE(brdp); - } - if (nt.data & DT_RXBUSY) { - donerx++; - stli_rxprocess(brdp, portp); - } - if (nt.data & DT_RXBREAK) { - (*linesw[tp->t_line].l_rint)(TTY_BI, tp); - EBRDENABLE(brdp); - } - if (nt.data & DT_TXEMPTY) { - ap = (volatile cdkasy_t *) - EBRDGETMEMPTR(brdp, portp->addr); - head = (unsigned int) ap->txq.head; - tail = (unsigned int) ap->txq.tail; - if (tail != ((unsigned int) ap->txq.tail)) - tail = (unsigned int) ap->txq.tail; - head = (head >= tail) ? (head - tail) : - portp->txsize - (tail - head); - if (head == 0) { - portp->state &= ~ST_TXBUSY; - tp->t_state &= ~TS_BUSY; - } - } - if (nt.data & (DT_TXEMPTY | DT_TXLOW)) { - (*linesw[tp->t_line].l_start)(tp); - EBRDENABLE(brdp); - } - } - -/* - * It might seem odd that we are checking for more RX chars here. - * But, we need to handle the case where the tty buffer was previously - * filled, but we had more characters to pass up. The slave will not - * send any more RX notify messages until the RX buffer has been emptied. - * But it will leave the service bits on (since the buffer is not empty). - * So from here we can try to process more RX chars. - */ - if ((!donerx) && (portp->state & ST_RXING)) { - portp->state &= ~ST_RXING; - stli_rxprocess(brdp, portp); - } - - return((portp->state & (ST_OPENING | ST_CLOSING | ST_CMDING | - ST_TXBUSY | ST_RXING)) ? 0 : 1); -} - -/*****************************************************************************/ - -/* - * Service all ports on a particular board. Assumes that the boards - * shared memory is enabled, and that the page pointer is pointed - * at the cdk header structure. - */ - -static __inline void stli_brdpoll(stlibrd_t *brdp, volatile cdkhdr_t *hdrp) -{ - stliport_t *portp; - unsigned char hostbits[(STL_MAXCHANS / 8) + 1]; - unsigned char slavebits[(STL_MAXCHANS / 8) + 1]; - unsigned char *slavep; - int bitpos, bitat, bitsize; - int channr, nrdevs, slavebitchange; - - bitsize = brdp->bitsize; - nrdevs = brdp->nrdevs; - -/* - * Check if slave wants any service. Basically we try to do as - * little work as possible here. There are 2 levels of service - * bits. So if there is nothing to do we bail early. We check - * 8 service bits at a time in the inner loop, so we can bypass - * the lot if none of them want service. - */ - bcopy((((unsigned char *) hdrp) + brdp->hostoffset), &hostbits[0], - bitsize); - - bzero(&slavebits[0], bitsize); - slavebitchange = 0; - - for (bitpos = 0; (bitpos < bitsize); bitpos++) { - if (hostbits[bitpos] == 0) - continue; - channr = bitpos * 8; - bitat = 0x1; - for (; (channr < nrdevs); channr++, bitat <<=1) { - if (hostbits[bitpos] & bitat) { - portp = brdp->ports[(channr - 1)]; - if (stli_hostcmd(brdp, portp)) { - slavebitchange++; - slavebits[bitpos] |= bitat; - } - } - } - } - -/* - * If any of the ports are no longer busy then update them in the - * slave request bits. We need to do this after, since a host port - * service may initiate more slave requests... - */ - if (slavebitchange) { - hdrp = (volatile cdkhdr_t *) - EBRDGETMEMPTR(brdp, CDK_CDKADDR); - slavep = ((unsigned char *) hdrp) + brdp->slaveoffset; - for (bitpos = 0; (bitpos < bitsize); bitpos++) { - if (slavebits[bitpos]) - slavep[bitpos] &= ~slavebits[bitpos]; - } - } -} - -/*****************************************************************************/ - -/* - * Driver poll routine. This routine polls the boards in use and passes - * messages back up to host when neccesary. This is actually very - * CPU efficient, since we will always have the kernel poll clock, it - * adds only a few cycles when idle (since board service can be - * determined very easily), but when loaded generates no interrupts - * (with their expensive associated context change). - */ - -static void stli_poll(void *arg) -{ - volatile cdkhdr_t *hdrp; - stlibrd_t *brdp; - int brdnr, x; - - x = spltty(); - -/* - * Check each board and do any servicing required. - */ - for (brdnr = 0; (brdnr < stli_nrbrds); brdnr++) { - brdp = stli_brds[brdnr]; - if (brdp == (stlibrd_t *) NULL) - continue; - if ((brdp->state & BST_STARTED) == 0) - continue; - - EBRDENABLE(brdp); - hdrp = (volatile cdkhdr_t *) EBRDGETMEMPTR(brdp, CDK_CDKADDR); - if (hdrp->hostreq) - stli_brdpoll(brdp, hdrp); - EBRDDISABLE(brdp); - } - splx(x); - - timeout(stli_poll, 0, 1); -} - -/*****************************************************************************/ - -/* - * Translate the termios settings into the port setting structure of - * the slave. - */ - -static void stli_mkasyport(stliport_t *portp, asyport_t *pp, struct termios *tiosp) -{ -#if DEBUG - printf("stli_mkasyport(portp=%x,pp=%x,tiosp=%d)\n", (int) portp, - (int) pp, (int) tiosp); -#endif - - bzero(pp, sizeof(asyport_t)); - -/* - * Start of by setting the baud, char size, parity and stop bit info. - */ - if (tiosp->c_ispeed == 0) - tiosp->c_ispeed = tiosp->c_ospeed; - if ((tiosp->c_ospeed < 0) || (tiosp->c_ospeed > STL_MAXBAUD)) - tiosp->c_ospeed = STL_MAXBAUD; - pp->baudout = tiosp->c_ospeed; - pp->baudin = pp->baudout; - - switch (tiosp->c_cflag & CSIZE) { - case CS5: - pp->csize = 5; - break; - case CS6: - pp->csize = 6; - break; - case CS7: - pp->csize = 7; - break; - default: - pp->csize = 8; - break; - } - - if (tiosp->c_cflag & CSTOPB) - pp->stopbs = PT_STOP2; - else - pp->stopbs = PT_STOP1; - - if (tiosp->c_cflag & PARENB) { - if (tiosp->c_cflag & PARODD) - pp->parity = PT_ODDPARITY; - else - pp->parity = PT_EVENPARITY; - } else { - pp->parity = PT_NOPARITY; - } - - if (tiosp->c_iflag & ISTRIP) - pp->iflag |= FI_ISTRIP; - -/* - * Set up any flow control options enabled. - */ - if (tiosp->c_iflag & IXON) { - pp->flow |= F_IXON; - if (tiosp->c_iflag & IXANY) - pp->flow |= F_IXANY; - } - if (tiosp->c_iflag & IXOFF) - pp->flow |= F_IXOFF; - if (tiosp->c_cflag & CCTS_OFLOW) - pp->flow |= F_CTSFLOW; - if (tiosp->c_cflag & CRTS_IFLOW) - pp->flow |= F_RTSFLOW; - - pp->startin = tiosp->c_cc[VSTART]; - pp->stopin = tiosp->c_cc[VSTOP]; - pp->startout = tiosp->c_cc[VSTART]; - pp->stopout = tiosp->c_cc[VSTOP]; - -/* - * Set up the RX char marking mask with those RX error types we must - * catch. We can get the slave to help us out a little here, it will - * ignore parity errors and breaks for us, and mark parity errors in - * the data stream. - */ - if (tiosp->c_iflag & IGNPAR) - pp->iflag |= FI_IGNRXERRS; - if (tiosp->c_iflag & IGNBRK) - pp->iflag |= FI_IGNBREAK; - if (tiosp->c_iflag & (INPCK | PARMRK)) - pp->iflag |= FI_1MARKRXERRS; - -/* - * Transfer any persistent flags into the asyport structure. - */ - pp->pflag = portp->pflag; -} - -/*****************************************************************************/ - -/* - * Construct a slave signals structure for setting the DTR and RTS - * signals as specified. - */ - -static void stli_mkasysigs(asysigs_t *sp, int dtr, int rts) -{ -#if DEBUG - printf("stli_mkasysigs(sp=%x,dtr=%d,rts=%d)\n", (int) sp, dtr, rts); -#endif - - bzero(sp, sizeof(asysigs_t)); - if (dtr >= 0) { - sp->signal |= SG_DTR; - sp->sigvalue |= ((dtr > 0) ? SG_DTR : 0); - } - if (rts >= 0) { - sp->signal |= SG_RTS; - sp->sigvalue |= ((rts > 0) ? SG_RTS : 0); - } -} - -/*****************************************************************************/ - -/* - * Convert the signals returned from the slave into a local TIOCM type - * signals value. We keep them localy in TIOCM format. - */ - -static long stli_mktiocm(unsigned long sigvalue) -{ - long tiocm; - -#if DEBUG - printf("stli_mktiocm(sigvalue=%x)\n", (int) sigvalue); -#endif - - tiocm = 0; - tiocm |= ((sigvalue & SG_DCD) ? TIOCM_CD : 0); - tiocm |= ((sigvalue & SG_CTS) ? TIOCM_CTS : 0); - tiocm |= ((sigvalue & SG_RI) ? TIOCM_RI : 0); - tiocm |= ((sigvalue & SG_DSR) ? TIOCM_DSR : 0); - tiocm |= ((sigvalue & SG_DTR) ? TIOCM_DTR : 0); - tiocm |= ((sigvalue & SG_RTS) ? TIOCM_RTS : 0); - return(tiocm); -} - -/*****************************************************************************/ - -/* - * Enable l_rint processing bypass mode if tty modes allow it. - */ - -static void stli_ttyoptim(stliport_t *portp, struct termios *tiosp) -{ - struct tty *tp; - - tp = &portp->tty; - if (((tiosp->c_iflag & (ICRNL | IGNCR | IMAXBEL | INLCR)) == 0) && - (((tiosp->c_iflag & BRKINT) == 0) || (tiosp->c_iflag & IGNBRK)) && - (((tiosp->c_iflag & PARMRK) == 0) || - ((tiosp->c_iflag & (IGNPAR | IGNBRK)) == (IGNPAR | IGNBRK))) && - ((tiosp->c_lflag & (ECHO | ICANON | IEXTEN | ISIG | PENDIN)) ==0) && - (linesw[tp->t_line].l_rint == ttyinput)) - tp->t_state |= TS_CAN_BYPASS_L_RINT; - else - tp->t_state &= ~TS_CAN_BYPASS_L_RINT; - portp->hotchar = linesw[tp->t_line].l_hotchar; -} - -/*****************************************************************************/ - -/* - * All panels and ports actually attached have been worked out. All - * we need to do here is set up the appropriate per port data structures. - */ - -static int stli_initports(stlibrd_t *brdp) -{ - stliport_t *portp; - int i, panelnr, panelport; - -#if DEBUG - printf("stli_initports(brdp=%x)\n", (int) brdp); -#endif - - for (i = 0, panelnr = 0, panelport = 0; (i < brdp->nrports); i++) { - portp = (stliport_t *) malloc(sizeof(stliport_t), M_TTYS, - M_NOWAIT | M_ZERO); - if (portp == (stliport_t *) NULL) { - printf("STALLION: failed to allocate port structure\n"); - continue; - } - - portp->portnr = i; - portp->brdnr = brdp->brdnr; - portp->panelnr = panelnr; - portp->initintios.c_ispeed = STL_DEFSPEED; - portp->initintios.c_ospeed = STL_DEFSPEED; - portp->initintios.c_cflag = STL_DEFCFLAG; - portp->initintios.c_iflag = 0; - portp->initintios.c_oflag = 0; - portp->initintios.c_lflag = 0; - bcopy(&ttydefchars[0], &portp->initintios.c_cc[0], - sizeof(portp->initintios.c_cc)); - portp->initouttios = portp->initintios; - portp->dtrwait = 3 * hz; - - panelport++; - if (panelport >= brdp->panels[panelnr]) { - panelport = 0; - panelnr++; - } - brdp->ports[i] = portp; - } - - return(0); -} - -/*****************************************************************************/ - -/* - * All the following routines are board specific hardware operations. - */ - -static void stli_ecpinit(stlibrd_t *brdp) -{ - unsigned long memconf; - -#if DEBUG - printf("stli_ecpinit(brdp=%d)\n", (int) brdp); -#endif - - outb((brdp->iobase + ECP_ATCONFR), ECP_ATSTOP); - DELAY(10); - outb((brdp->iobase + ECP_ATCONFR), ECP_ATDISABLE); - DELAY(100); - - memconf = (brdp->paddr & ECP_ATADDRMASK) >> ECP_ATADDRSHFT; - outb((brdp->iobase + ECP_ATMEMAR), memconf); -} - -/*****************************************************************************/ - -static void stli_ecpenable(stlibrd_t *brdp) -{ -#if DEBUG - printf("stli_ecpenable(brdp=%x)\n", (int) brdp); -#endif - outb((brdp->iobase + ECP_ATCONFR), ECP_ATENABLE); -} - -/*****************************************************************************/ - -static void stli_ecpdisable(stlibrd_t *brdp) -{ -#if DEBUG - printf("stli_ecpdisable(brdp=%x)\n", (int) brdp); -#endif - outb((brdp->iobase + ECP_ATCONFR), ECP_ATDISABLE); -} - -/*****************************************************************************/ - -static char *stli_ecpgetmemptr(stlibrd_t *brdp, unsigned long offset, int line) -{ - void *ptr; - unsigned char val; - -#if DEBUG - printf("stli_ecpgetmemptr(brdp=%x,offset=%x)\n", (int) brdp, - (int) offset); -#endif - - if (offset > brdp->memsize) { - printf("STALLION: shared memory pointer=%x out of range at " - "line=%d(%d), brd=%d\n", (int) offset, line, - __LINE__, brdp->brdnr); - ptr = 0; - val = 0; - } else { - ptr = (char *) brdp->vaddr + (offset % ECP_ATPAGESIZE); - val = (unsigned char) (offset / ECP_ATPAGESIZE); - } - outb((brdp->iobase + ECP_ATMEMPR), val); - return(ptr); -} - -/*****************************************************************************/ - -static void stli_ecpreset(stlibrd_t *brdp) -{ -#if DEBUG - printf("stli_ecpreset(brdp=%x)\n", (int) brdp); -#endif - - outb((brdp->iobase + ECP_ATCONFR), ECP_ATSTOP); - DELAY(10); - outb((brdp->iobase + ECP_ATCONFR), ECP_ATDISABLE); - DELAY(500); -} - -/*****************************************************************************/ - -static void stli_ecpintr(stlibrd_t *brdp) -{ -#if DEBUG - printf("stli_ecpintr(brdp=%x)\n", (int) brdp); -#endif - outb(brdp->iobase, 0x1); -} - -/*****************************************************************************/ - -/* - * The following set of functions act on ECP EISA boards. - */ - -static void stli_ecpeiinit(stlibrd_t *brdp) -{ - unsigned long memconf; - -#if DEBUG - printf("stli_ecpeiinit(brdp=%x)\n", (int) brdp); -#endif - - outb((brdp->iobase + ECP_EIBRDENAB), 0x1); - outb((brdp->iobase + ECP_EICONFR), ECP_EISTOP); - DELAY(10); - outb((brdp->iobase + ECP_EICONFR), ECP_EIDISABLE); - DELAY(500); - - memconf = (brdp->paddr & ECP_EIADDRMASKL) >> ECP_EIADDRSHFTL; - outb((brdp->iobase + ECP_EIMEMARL), memconf); - memconf = (brdp->paddr & ECP_EIADDRMASKH) >> ECP_EIADDRSHFTH; - outb((brdp->iobase + ECP_EIMEMARH), memconf); -} - -/*****************************************************************************/ - -static void stli_ecpeienable(stlibrd_t *brdp) -{ - outb((brdp->iobase + ECP_EICONFR), ECP_EIENABLE); -} - -/*****************************************************************************/ - -static void stli_ecpeidisable(stlibrd_t *brdp) -{ - outb((brdp->iobase + ECP_EICONFR), ECP_EIDISABLE); -} - -/*****************************************************************************/ - -static char *stli_ecpeigetmemptr(stlibrd_t *brdp, unsigned long offset, int line) -{ - void *ptr; - unsigned char val; - -#if DEBUG - printf("stli_ecpeigetmemptr(brdp=%x,offset=%x,line=%d)\n", - (int) brdp, (int) offset, line); -#endif - - if (offset > brdp->memsize) { - printf("STALLION: shared memory pointer=%x out of range at " - "line=%d(%d), brd=%d\n", (int) offset, line, - __LINE__, brdp->brdnr); - ptr = 0; - val = 0; - } else { - ptr = (char *) brdp->vaddr + (offset % ECP_EIPAGESIZE); - if (offset < ECP_EIPAGESIZE) - val = ECP_EIENABLE; - else - val = ECP_EIENABLE | 0x40; - } - outb((brdp->iobase + ECP_EICONFR), val); - return(ptr); -} - -/*****************************************************************************/ - -static void stli_ecpeireset(stlibrd_t *brdp) -{ - outb((brdp->iobase + ECP_EICONFR), ECP_EISTOP); - DELAY(10); - outb((brdp->iobase + ECP_EICONFR), ECP_EIDISABLE); - DELAY(500); -} - -/*****************************************************************************/ - -/* - * The following set of functions act on ECP MCA boards. - */ - -static void stli_ecpmcenable(stlibrd_t *brdp) -{ - outb((brdp->iobase + ECP_MCCONFR), ECP_MCENABLE); -} - -/*****************************************************************************/ - -static void stli_ecpmcdisable(stlibrd_t *brdp) -{ - outb((brdp->iobase + ECP_MCCONFR), ECP_MCDISABLE); -} - -/*****************************************************************************/ - -static char *stli_ecpmcgetmemptr(stlibrd_t *brdp, unsigned long offset, int line) -{ - void *ptr; - unsigned char val; - - if (offset > brdp->memsize) { - printf("STALLION: shared memory pointer=%x out of range at " - "line=%d(%d), brd=%d\n", (int) offset, line, - __LINE__, brdp->brdnr); - ptr = 0; - val = 0; - } else { - ptr = (char *) brdp->vaddr + (offset % ECP_MCPAGESIZE); - val = ((unsigned char) (offset / ECP_MCPAGESIZE)) | ECP_MCENABLE; - } - outb((brdp->iobase + ECP_MCCONFR), val); - return(ptr); -} - -/*****************************************************************************/ - -static void stli_ecpmcreset(stlibrd_t *brdp) -{ - outb((brdp->iobase + ECP_MCCONFR), ECP_MCSTOP); - DELAY(10); - outb((brdp->iobase + ECP_MCCONFR), ECP_MCDISABLE); - DELAY(500); -} - -/*****************************************************************************/ - -/* - * The following routines act on ONboards. - */ - -static void stli_onbinit(stlibrd_t *brdp) -{ - unsigned long memconf; - int i; - -#if DEBUG - printf("stli_onbinit(brdp=%d)\n", (int) brdp); -#endif - - outb((brdp->iobase + ONB_ATCONFR), ONB_ATSTOP); - DELAY(10); - outb((brdp->iobase + ONB_ATCONFR), ONB_ATDISABLE); - for (i = 0; (i < 1000); i++) - DELAY(1000); - - memconf = (brdp->paddr & ONB_ATADDRMASK) >> ONB_ATADDRSHFT; - outb((brdp->iobase + ONB_ATMEMAR), memconf); - outb(brdp->iobase, 0x1); - DELAY(1000); -} - -/*****************************************************************************/ - -static void stli_onbenable(stlibrd_t *brdp) -{ -#if DEBUG - printf("stli_onbenable(brdp=%x)\n", (int) brdp); -#endif - outb((brdp->iobase + ONB_ATCONFR), (ONB_ATENABLE | brdp->confbits)); -} - -/*****************************************************************************/ - -static void stli_onbdisable(stlibrd_t *brdp) -{ -#if DEBUG - printf("stli_onbdisable(brdp=%x)\n", (int) brdp); -#endif - outb((brdp->iobase + ONB_ATCONFR), (ONB_ATDISABLE | brdp->confbits)); -} - -/*****************************************************************************/ - -static char *stli_onbgetmemptr(stlibrd_t *brdp, unsigned long offset, int line) -{ - void *ptr; - -#if DEBUG - printf("stli_onbgetmemptr(brdp=%x,offset=%x)\n", (int) brdp, - (int) offset); -#endif - - if (offset > brdp->memsize) { - printf("STALLION: shared memory pointer=%x out of range at " - "line=%d(%d), brd=%d\n", (int) offset, line, - __LINE__, brdp->brdnr); - ptr = 0; - } else { - ptr = (char *) brdp->vaddr + (offset % ONB_ATPAGESIZE); - } - return(ptr); -} - -/*****************************************************************************/ - -static void stli_onbreset(stlibrd_t *brdp) -{ - int i; - -#if DEBUG - printf("stli_onbreset(brdp=%x)\n", (int) brdp); -#endif - - outb((brdp->iobase + ONB_ATCONFR), ONB_ATSTOP); - DELAY(10); - outb((brdp->iobase + ONB_ATCONFR), ONB_ATDISABLE); - for (i = 0; (i < 1000); i++) - DELAY(1000); -} - -/*****************************************************************************/ - -/* - * The following routines act on ONboard EISA. - */ - -static void stli_onbeinit(stlibrd_t *brdp) -{ - unsigned long memconf; - int i; - -#if DEBUG - printf("stli_onbeinit(brdp=%d)\n", (int) brdp); -#endif - - outb((brdp->iobase + ONB_EIBRDENAB), 0x1); - outb((brdp->iobase + ONB_EICONFR), ONB_EISTOP); - DELAY(10); - outb((brdp->iobase + ONB_EICONFR), ONB_EIDISABLE); - for (i = 0; (i < 1000); i++) - DELAY(1000); - - memconf = (brdp->paddr & ONB_EIADDRMASKL) >> ONB_EIADDRSHFTL; - outb((brdp->iobase + ONB_EIMEMARL), memconf); - memconf = (brdp->paddr & ONB_EIADDRMASKH) >> ONB_EIADDRSHFTH; - outb((brdp->iobase + ONB_EIMEMARH), memconf); - outb(brdp->iobase, 0x1); - DELAY(1000); -} - -/*****************************************************************************/ - -static void stli_onbeenable(stlibrd_t *brdp) -{ -#if DEBUG - printf("stli_onbeenable(brdp=%x)\n", (int) brdp); -#endif - outb((brdp->iobase + ONB_EICONFR), ONB_EIENABLE); -} - -/*****************************************************************************/ - -static void stli_onbedisable(stlibrd_t *brdp) -{ -#if DEBUG - printf("stli_onbedisable(brdp=%x)\n", (int) brdp); -#endif - outb((brdp->iobase + ONB_EICONFR), ONB_EIDISABLE); -} - -/*****************************************************************************/ - -static char *stli_onbegetmemptr(stlibrd_t *brdp, unsigned long offset, int line) -{ - void *ptr; - unsigned char val; - -#if DEBUG - printf("stli_onbegetmemptr(brdp=%x,offset=%x,line=%d)\n", (int) brdp, - (int) offset, line); -#endif - - if (offset > brdp->memsize) { - printf("STALLION: shared memory pointer=%x out of range at " - "line=%d(%d), brd=%d\n", (int) offset, line, - __LINE__, brdp->brdnr); - ptr = 0; - val = 0; - } else { - ptr = (char *) brdp->vaddr + (offset % ONB_EIPAGESIZE); - if (offset < ONB_EIPAGESIZE) - val = ONB_EIENABLE; - else - val = ONB_EIENABLE | 0x40; - } - outb((brdp->iobase + ONB_EICONFR), val); - return(ptr); -} - -/*****************************************************************************/ - -static void stli_onbereset(stlibrd_t *brdp) -{ - int i; - -#if DEBUG - printf("stli_onbereset(brdp=%x)\n", (int) brdp); -#endif - - outb((brdp->iobase + ONB_EICONFR), ONB_EISTOP); - DELAY(10); - outb((brdp->iobase + ONB_EICONFR), ONB_EIDISABLE); - for (i = 0; (i < 1000); i++) - DELAY(1000); -} - -/*****************************************************************************/ - -/* - * The following routines act on Brumby boards. - */ - -static void stli_bbyinit(stlibrd_t *brdp) -{ - int i; - -#if DEBUG - printf("stli_bbyinit(brdp=%d)\n", (int) brdp); -#endif - - outb((brdp->iobase + BBY_ATCONFR), BBY_ATSTOP); - DELAY(10); - outb((brdp->iobase + BBY_ATCONFR), 0); - for (i = 0; (i < 1000); i++) - DELAY(1000); - outb(brdp->iobase, 0x1); - DELAY(1000); -} - -/*****************************************************************************/ - -static char *stli_bbygetmemptr(stlibrd_t *brdp, unsigned long offset, int line) -{ - void *ptr; - unsigned char val; - -#if DEBUG - printf("stli_bbygetmemptr(brdp=%x,offset=%x)\n", (int) brdp, - (int) offset); -#endif - - if (offset > brdp->memsize) { - printf("STALLION: shared memory pointer=%x out of range at " - "line=%d(%d), brd=%d\n", (int) offset, line, - __LINE__, brdp->brdnr); - ptr = 0; - val = 0; - } else { - ptr = (char *) brdp->vaddr + (offset % BBY_PAGESIZE); - val = (unsigned char) (offset / BBY_PAGESIZE); - } - outb((brdp->iobase + BBY_ATCONFR), val); - return(ptr); -} - -/*****************************************************************************/ - -static void stli_bbyreset(stlibrd_t *brdp) -{ - int i; - -#if DEBUG - printf("stli_bbyreset(brdp=%x)\n", (int) brdp); -#endif - - outb((brdp->iobase + BBY_ATCONFR), BBY_ATSTOP); - DELAY(10); - outb((brdp->iobase + BBY_ATCONFR), 0); - for (i = 0; (i < 1000); i++) - DELAY(1000); -} - -/*****************************************************************************/ - -/* - * The following routines act on original old Stallion boards. - */ - -static void stli_stalinit(stlibrd_t *brdp) -{ - int i; - -#if DEBUG - printf("stli_stalinit(brdp=%d)\n", (int) brdp); -#endif - - outb(brdp->iobase, 0x1); - for (i = 0; (i < 1000); i++) - DELAY(1000); -} - -/*****************************************************************************/ - -static char *stli_stalgetmemptr(stlibrd_t *brdp, unsigned long offset, int line) -{ - void *ptr; - -#if DEBUG - printf("stli_stalgetmemptr(brdp=%x,offset=%x)\n", (int) brdp, - (int) offset); -#endif - - if (offset > brdp->memsize) { - printf("STALLION: shared memory pointer=%x out of range at " - "line=%d(%d), brd=%d\n", (int) offset, line, - __LINE__, brdp->brdnr); - ptr = 0; - } else { - ptr = (char *) brdp->vaddr + (offset % STAL_PAGESIZE); - } - return(ptr); -} - -/*****************************************************************************/ - -static void stli_stalreset(stlibrd_t *brdp) -{ - volatile unsigned long *vecp; - int i; - -#if DEBUG - printf("stli_stalreset(brdp=%x)\n", (int) brdp); -#endif - - vecp = (volatile unsigned long *) ((char *) brdp->vaddr + 0x30); - *vecp = 0xffff0000; - outb(brdp->iobase, 0); - for (i = 0; (i < 1000); i++) - DELAY(1000); -} - -/*****************************************************************************/ - -/* - * Try to find an ECP board and initialize it. This handles only ECP - * board types. - */ - -static int stli_initecp(stlibrd_t *brdp) -{ - cdkecpsig_t sig; - cdkecpsig_t *sigsp; - unsigned int status, nxtid; - int panelnr; - -#if DEBUG - printf("stli_initecp(brdp=%x)\n", (int) brdp); -#endif - -/* - * Do a basic sanity check on the IO and memory addresses. - */ - if ((brdp->iobase == 0) || (brdp->paddr == 0)) - return(EINVAL); - -/* - * Based on the specific board type setup the common vars to access - * and enable shared memory. Set all board specific information now - * as well. - */ - switch (brdp->brdtype) { - case BRD_ECP: - brdp->memsize = ECP_MEMSIZE; - brdp->pagesize = ECP_ATPAGESIZE; - brdp->init = stli_ecpinit; - brdp->enable = stli_ecpenable; - brdp->reenable = stli_ecpenable; - brdp->disable = stli_ecpdisable; - brdp->getmemptr = stli_ecpgetmemptr; - brdp->intr = stli_ecpintr; - brdp->reset = stli_ecpreset; - break; - - case BRD_ECPE: - brdp->memsize = ECP_MEMSIZE; - brdp->pagesize = ECP_EIPAGESIZE; - brdp->init = stli_ecpeiinit; - brdp->enable = stli_ecpeienable; - brdp->reenable = stli_ecpeienable; - brdp->disable = stli_ecpeidisable; - brdp->getmemptr = stli_ecpeigetmemptr; - brdp->intr = stli_ecpintr; - brdp->reset = stli_ecpeireset; - break; - - case BRD_ECPMC: - brdp->memsize = ECP_MEMSIZE; - brdp->pagesize = ECP_MCPAGESIZE; - brdp->init = NULL; - brdp->enable = stli_ecpmcenable; - brdp->reenable = stli_ecpmcenable; - brdp->disable = stli_ecpmcdisable; - brdp->getmemptr = stli_ecpmcgetmemptr; - brdp->intr = stli_ecpintr; - brdp->reset = stli_ecpmcreset; - break; - - default: - return(EINVAL); - } - -/* - * The per-board operations structure is all setup, so now lets go - * and get the board operational. Firstly initialize board configuration - * registers. - */ - EBRDINIT(brdp); - -/* - * Now that all specific code is set up, enable the shared memory and - * look for the a signature area that will tell us exactly what board - * this is, and what it is connected to it. - */ - EBRDENABLE(brdp); - sigsp = (cdkecpsig_t *) EBRDGETMEMPTR(brdp, CDK_SIGADDR); - bcopy(sigsp, &sig, sizeof(cdkecpsig_t)); - EBRDDISABLE(brdp); - -#if 0 - printf("%s(%d): sig-> magic=%x rom=%x panel=%x,%x,%x,%x,%x,%x,%x,%x\n", - __file__, __LINE__, (int) sig.magic, sig.romver, - sig.panelid[0], (int) sig.panelid[1], (int) sig.panelid[2], - (int) sig.panelid[3], (int) sig.panelid[4], - (int) sig.panelid[5], (int) sig.panelid[6], - (int) sig.panelid[7]); -#endif - - if (sig.magic != ECP_MAGIC) - return(ENXIO); - -/* - * Scan through the signature looking at the panels connected to the - * board. Calculate the total number of ports as we go. - */ - for (panelnr = 0, nxtid = 0; (panelnr < STL_MAXPANELS); panelnr++) { - status = sig.panelid[nxtid]; - if ((status & ECH_PNLIDMASK) != nxtid) - break; - brdp->panelids[panelnr] = status; - if (status & ECH_PNL16PORT) { - brdp->panels[panelnr] = 16; - brdp->nrports += 16; - nxtid += 2; - } else { - brdp->panels[panelnr] = 8; - brdp->nrports += 8; - nxtid++; - } - brdp->nrpanels++; - } - - brdp->state |= BST_FOUND; - return(0); -} - -/*****************************************************************************/ - -/* - * Try to find an ONboard, Brumby or Stallion board and initialize it. - * This handles only these board types. - */ - -static int stli_initonb(stlibrd_t *brdp) -{ - cdkonbsig_t sig; - cdkonbsig_t *sigsp; - int i; - -#if DEBUG - printf("stli_initonb(brdp=%x)\n", (int) brdp); -#endif - -/* - * Do a basic sanity check on the IO and memory addresses. - */ - if ((brdp->iobase == 0) || (brdp->paddr == 0)) - return(EINVAL); - -/* - * Based on the specific board type setup the common vars to access - * and enable shared memory. Set all board specific information now - * as well. - */ - switch (brdp->brdtype) { - case BRD_ONBOARD: - case BRD_ONBOARD32: - case BRD_ONBOARD2: - case BRD_ONBOARD2_32: - case BRD_ONBOARDRS: - brdp->memsize = ONB_MEMSIZE; - brdp->pagesize = ONB_ATPAGESIZE; - brdp->init = stli_onbinit; - brdp->enable = stli_onbenable; - brdp->reenable = stli_onbenable; - brdp->disable = stli_onbdisable; - brdp->getmemptr = stli_onbgetmemptr; - brdp->intr = stli_ecpintr; - brdp->reset = stli_onbreset; - brdp->confbits = (brdp->paddr > 0x100000) ? ONB_HIMEMENAB : 0; - break; - - case BRD_ONBOARDE: - brdp->memsize = ONB_EIMEMSIZE; - brdp->pagesize = ONB_EIPAGESIZE; - brdp->init = stli_onbeinit; - brdp->enable = stli_onbeenable; - brdp->reenable = stli_onbeenable; - brdp->disable = stli_onbedisable; - brdp->getmemptr = stli_onbegetmemptr; - brdp->intr = stli_ecpintr; - brdp->reset = stli_onbereset; - break; - - case BRD_BRUMBY4: - case BRD_BRUMBY8: - case BRD_BRUMBY16: - brdp->memsize = BBY_MEMSIZE; - brdp->pagesize = BBY_PAGESIZE; - brdp->init = stli_bbyinit; - brdp->enable = NULL; - brdp->reenable = NULL; - brdp->disable = NULL; - brdp->getmemptr = stli_bbygetmemptr; - brdp->intr = stli_ecpintr; - brdp->reset = stli_bbyreset; - break; - - case BRD_STALLION: - brdp->memsize = STAL_MEMSIZE; - brdp->pagesize = STAL_PAGESIZE; - brdp->init = stli_stalinit; - brdp->enable = NULL; - brdp->reenable = NULL; - brdp->disable = NULL; - brdp->getmemptr = stli_stalgetmemptr; - brdp->intr = stli_ecpintr; - brdp->reset = stli_stalreset; - break; - - default: - return(EINVAL); - } - -/* - * The per-board operations structure is all setup, so now lets go - * and get the board operational. Firstly initialize board configuration - * registers. - */ - EBRDINIT(brdp); - -/* - * Now that all specific code is set up, enable the shared memory and - * look for the a signature area that will tell us exactly what board - * this is, and how many ports. - */ - EBRDENABLE(brdp); - sigsp = (cdkonbsig_t *) EBRDGETMEMPTR(brdp, CDK_SIGADDR); - bcopy(sigsp, &sig, sizeof(cdkonbsig_t)); - EBRDDISABLE(brdp); - -#if 0 - printf("%s(%d): sig-> magic=%x:%x:%x:%x romver=%x amask=%x:%x:%x\n", - __file__, __LINE__, sig.magic0, sig.magic1, sig.magic2, - sig.magic3, sig.romver, sig.amask0, sig.amask1, sig.amask2); -#endif - - if ((sig.magic0 != ONB_MAGIC0) || (sig.magic1 != ONB_MAGIC1) || - (sig.magic2 != ONB_MAGIC2) || (sig.magic3 != ONB_MAGIC3)) - return(ENXIO); - -/* - * Scan through the signature alive mask and calculate how many ports - * there are on this board. - */ - brdp->nrpanels = 1; - if (sig.amask1) { - brdp->nrports = 32; - } else { - for (i = 0; (i < 16); i++) { - if (((sig.amask0 << i) & 0x8000) == 0) - break; - } - brdp->nrports = i; - } - brdp->panels[0] = brdp->nrports; - - brdp->state |= BST_FOUND; - return(0); -} - -/*****************************************************************************/ - -/* - * Start up a running board. This routine is only called after the - * code has been down loaded to the board and is operational. It will - * read in the memory map, and get the show on the road... - */ - -static int stli_startbrd(stlibrd_t *brdp) -{ - volatile cdkhdr_t *hdrp; - volatile cdkmem_t *memp; - volatile cdkasy_t *ap; - stliport_t *portp; - int portnr, nrdevs, i, rc, x; - -#if DEBUG - printf("stli_startbrd(brdp=%x)\n", (int) brdp); -#endif - - rc = 0; - - x = spltty(); - EBRDENABLE(brdp); - hdrp = (volatile cdkhdr_t *) EBRDGETMEMPTR(brdp, CDK_CDKADDR); - nrdevs = hdrp->nrdevs; - -#if 0 - printf("%s(%d): CDK version %d.%d.%d --> nrdevs=%d memp=%x hostp=%x " - "slavep=%x\n", __file__, __LINE__, hdrp->ver_release, - hdrp->ver_modification, hdrp->ver_fix, nrdevs, - (int) hdrp->memp, (int) hdrp->hostp, (int) hdrp->slavep); -#endif - - if (nrdevs < (brdp->nrports + 1)) { - printf("STALLION: slave failed to allocate memory for all " - "devices, devices=%d\n", nrdevs); - brdp->nrports = nrdevs - 1; - } - brdp->nrdevs = nrdevs; - brdp->hostoffset = hdrp->hostp - CDK_CDKADDR; - brdp->slaveoffset = hdrp->slavep - CDK_CDKADDR; - brdp->bitsize = (nrdevs + 7) / 8; - memp = (volatile cdkmem_t *) (void *) (uintptr_t) hdrp->memp; - if (((uintptr_t) (void *) memp) > brdp->memsize) { - printf("STALLION: corrupted shared memory region?\n"); - rc = EIO; - goto stli_donestartup; - } - memp = (volatile cdkmem_t *) EBRDGETMEMPTR(brdp, - (uintptr_t) (void *) memp); - if (memp->dtype != TYP_ASYNCTRL) { - printf("STALLION: no slave control device found\n"); - rc = EIO; - goto stli_donestartup; - } - memp++; - -/* - * Cycle through memory allocation of each port. We are guaranteed to - * have all ports inside the first page of slave window, so no need to - * change pages while reading memory map. - */ - for (i = 1, portnr = 0; (i < nrdevs); i++, portnr++, memp++) { - if (memp->dtype != TYP_ASYNC) - break; - portp = brdp->ports[portnr]; - if (portp == (stliport_t *) NULL) - break; - portp->devnr = i; - portp->addr = memp->offset; - portp->reqidx = (unsigned char) (i * 8 / nrdevs); - portp->reqbit = (unsigned char) (0x1 << portp->reqidx); - portp->portidx = (unsigned char) (i / 8); - portp->portbit = (unsigned char) (0x1 << (i % 8)); - } - - hdrp->slavereq = 0xff; - -/* - * For each port setup a local copy of the RX and TX buffer offsets - * and sizes. We do this separate from the above, because we need to - * move the shared memory page... - */ - for (i = 1, portnr = 0; (i < nrdevs); i++, portnr++) { - portp = brdp->ports[portnr]; - if (portp == (stliport_t *) NULL) - break; - if (portp->addr == 0) - break; - ap = (volatile cdkasy_t *) EBRDGETMEMPTR(brdp, portp->addr); - if (ap != (volatile cdkasy_t *) NULL) { - portp->rxsize = ap->rxq.size; - portp->txsize = ap->txq.size; - portp->rxoffset = ap->rxq.offset; - portp->txoffset = ap->txq.offset; - } - } - -stli_donestartup: - EBRDDISABLE(brdp); - splx(x); - - if (rc == 0) - brdp->state |= BST_STARTED; - - if (stli_doingtimeout == 0) { - timeout(stli_poll, 0, 1); - stli_doingtimeout++; - } - - return(rc); -} - -/*****************************************************************************/ - -/* - * Probe and initialize the specified board. - */ - -static int stli_brdinit(stlibrd_t *brdp) -{ -#if DEBUG - printf("stli_brdinit(brdp=%x)\n", (int) brdp); -#endif - - stli_brds[brdp->brdnr] = brdp; - - switch (brdp->brdtype) { - case BRD_ECP: - case BRD_ECPE: - case BRD_ECPMC: - stli_initecp(brdp); - break; - case BRD_ONBOARD: - case BRD_ONBOARDE: - case BRD_ONBOARD2: - case BRD_ONBOARD32: - case BRD_ONBOARD2_32: - case BRD_ONBOARDRS: - case BRD_BRUMBY4: - case BRD_BRUMBY8: - case BRD_BRUMBY16: - case BRD_STALLION: - stli_initonb(brdp); - break; - case BRD_EASYIO: - case BRD_ECH: - case BRD_ECHMC: - case BRD_ECHPCI: - printf("STALLION: %s board type not supported in this driver\n", - stli_brdnames[brdp->brdtype]); - return(ENODEV); - default: - printf("STALLION: unit=%d is unknown board type=%d\n", - brdp->brdnr, brdp->brdtype); - return(ENODEV); - } - return(0); -} - -/*****************************************************************************/ - -/* - * Finish off the remaining initialization for a board. - */ - -static int stli_brdattach(stlibrd_t *brdp) -{ -#if DEBUG - printf("stli_brdattach(brdp=%x)\n", (int) brdp); -#endif - -#if 0 - if ((brdp->state & BST_FOUND) == 0) { - printf("STALLION: %s board not found, unit=%d io=%x mem=%x\n", - stli_brdnames[brdp->brdtype], brdp->brdnr, - brdp->iobase, (int) brdp->paddr); - return(ENXIO); - } -#endif - - stli_initports(brdp); - printf("stli%d: %s (driver version %s), unit=%d nrpanels=%d " - "nrports=%d\n", brdp->unitid, stli_brdnames[brdp->brdtype], - stli_drvversion, brdp->brdnr, brdp->nrpanels, brdp->nrports); - return(0); -} - -/*****************************************************************************/ - -/* - * Check for possible shared memory sharing between boards. - * FIX: need to start this optimization somewhere... - */ - -#ifdef notdef -static int stli_chksharemem() -{ - stlibrd_t *brdp, *nxtbrdp; - int i, j; - -#if DEBUG - printf("stli_chksharemem()\n"); -#endif - -/* - * All found boards are initialized. Now for a little optimization, if - * no boards are sharing the "shared memory" regions then we can just - * leave them all enabled. This is in fact the usual case. - */ - stli_shared = 0; - if (stli_nrbrds > 1) { - for (i = 0; (i < stli_nrbrds); i++) { - brdp = stli_brds[i]; - if (brdp == (stlibrd_t *) NULL) - continue; - for (j = i + 1; (j < stli_nrbrds); j++) { - nxtbrdp = stli_brds[j]; - if (nxtbrdp == (stlibrd_t *) NULL) - continue; - if ((brdp->paddr >= nxtbrdp->paddr) && - (brdp->paddr <= (nxtbrdp->paddr + - nxtbrdp->memsize - 1))) { - stli_shared++; - break; - } - } - } - } - - if (stli_shared == 0) { - for (i = 0; (i < stli_nrbrds); i++) { - brdp = stli_brds[i]; - if (brdp == (stlibrd_t *) NULL) - continue; - if (brdp->state & BST_FOUND) { - EBRDENABLE(brdp); - brdp->enable = NULL; - brdp->disable = NULL; - } - } - } - - return(0); -} -#endif /* notdef */ - -/*****************************************************************************/ - -/* - * Return the board stats structure to user app. - */ - -static int stli_getbrdstats(caddr_t data) -{ - stlibrd_t *brdp; - int i; - -#if DEBUG - printf("stli_getbrdstats(data=%p)\n", (void *) data); -#endif - - stli_brdstats = *((combrd_t *) data); - if (stli_brdstats.brd >= STL_MAXBRDS) - return(-ENODEV); - brdp = stli_brds[stli_brdstats.brd]; - if (brdp == (stlibrd_t *) NULL) - return(-ENODEV); - - bzero(&stli_brdstats, sizeof(combrd_t)); - stli_brdstats.brd = brdp->brdnr; - stli_brdstats.type = brdp->brdtype; - stli_brdstats.hwid = 0; - stli_brdstats.state = brdp->state; - stli_brdstats.ioaddr = brdp->iobase; - stli_brdstats.memaddr = brdp->paddr; - stli_brdstats.nrpanels = brdp->nrpanels; - stli_brdstats.nrports = brdp->nrports; - for (i = 0; (i < brdp->nrpanels); i++) { - stli_brdstats.panels[i].panel = i; - stli_brdstats.panels[i].hwid = brdp->panelids[i]; - stli_brdstats.panels[i].nrports = brdp->panels[i]; - } - - *((combrd_t *) data) = stli_brdstats; - return(0); -} - -/*****************************************************************************/ - -/* - * Resolve the referenced port number into a port struct pointer. - */ - -static stliport_t *stli_getport(int brdnr, int panelnr, int portnr) -{ - stlibrd_t *brdp; - int i; - - if ((brdnr < 0) || (brdnr >= STL_MAXBRDS)) - return((stliport_t *) NULL); - brdp = stli_brds[brdnr]; - if (brdp == (stlibrd_t *) NULL) - return((stliport_t *) NULL); - for (i = 0; (i < panelnr); i++) - portnr += brdp->panels[i]; - if ((portnr < 0) || (portnr >= brdp->nrports)) - return((stliport_t *) NULL); - return(brdp->ports[portnr]); -} - -/*****************************************************************************/ - -/* - * Return the port stats structure to user app. A NULL port struct - * pointer passed in means that we need to find out from the app - * what port to get stats for (used through board control device). - */ - -static int stli_getportstats(stliport_t *portp, caddr_t data) -{ - stlibrd_t *brdp; - int rc; - - if (portp == (stliport_t *) NULL) { - stli_comstats = *((comstats_t *) data); - portp = stli_getport(stli_comstats.brd, stli_comstats.panel, - stli_comstats.port); - if (portp == (stliport_t *) NULL) - return(-ENODEV); - } - - brdp = stli_brds[portp->brdnr]; - if (brdp == (stlibrd_t *) NULL) - return(-ENODEV); - - if ((rc = stli_cmdwait(brdp, portp, A_GETSTATS, &stli_cdkstats, - sizeof(asystats_t), 1)) < 0) - return(rc); - - stli_comstats.brd = portp->brdnr; - stli_comstats.panel = portp->panelnr; - stli_comstats.port = portp->portnr; - stli_comstats.state = portp->state; - /*stli_comstats.flags = portp->flags;*/ - stli_comstats.ttystate = portp->tty.t_state; - stli_comstats.cflags = portp->tty.t_cflag; - stli_comstats.iflags = portp->tty.t_iflag; - stli_comstats.oflags = portp->tty.t_oflag; - stli_comstats.lflags = portp->tty.t_lflag; - - stli_comstats.txtotal = stli_cdkstats.txchars; - stli_comstats.rxtotal = stli_cdkstats.rxchars + stli_cdkstats.ringover; - stli_comstats.txbuffered = stli_cdkstats.txringq; - stli_comstats.rxbuffered = stli_cdkstats.rxringq; - stli_comstats.rxoverrun = stli_cdkstats.overruns; - stli_comstats.rxparity = stli_cdkstats.parity; - stli_comstats.rxframing = stli_cdkstats.framing; - stli_comstats.rxlost = stli_cdkstats.ringover + portp->rxlost; - stli_comstats.rxbreaks = stli_cdkstats.rxbreaks; - stli_comstats.txbreaks = stli_cdkstats.txbreaks; - stli_comstats.txxon = stli_cdkstats.txstart; - stli_comstats.txxoff = stli_cdkstats.txstop; - stli_comstats.rxxon = stli_cdkstats.rxstart; - stli_comstats.rxxoff = stli_cdkstats.rxstop; - stli_comstats.rxrtsoff = stli_cdkstats.rtscnt / 2; - stli_comstats.rxrtson = stli_cdkstats.rtscnt - stli_comstats.rxrtsoff; - stli_comstats.modem = stli_cdkstats.dcdcnt; - stli_comstats.hwid = stli_cdkstats.hwid; - stli_comstats.signals = stli_mktiocm(stli_cdkstats.signals); - - *((comstats_t *) data) = stli_comstats;; - return(0); -} - -/*****************************************************************************/ - -/* - * Clear the port stats structure. We also return it zeroed out... - */ - -static int stli_clrportstats(stliport_t *portp, caddr_t data) -{ - stlibrd_t *brdp; - int rc; - - if (portp == (stliport_t *) NULL) { - stli_comstats = *((comstats_t *) data); - portp = stli_getport(stli_comstats.brd, stli_comstats.panel, - stli_comstats.port); - if (portp == (stliport_t *) NULL) - return(-ENODEV); - } - - brdp = stli_brds[portp->brdnr]; - if (brdp == (stlibrd_t *) NULL) - return(-ENODEV); - - if ((rc = stli_cmdwait(brdp, portp, A_CLEARSTATS, 0, 0, 0)) < 0) - return(rc); - - portp->rxlost = 0; - bzero(&stli_comstats, sizeof(comstats_t)); - stli_comstats.brd = portp->brdnr; - stli_comstats.panel = portp->panelnr; - stli_comstats.port = portp->portnr; - - *((comstats_t *) data) = stli_comstats;; - return(0); -} - -/*****************************************************************************/ - -/* - * Code to handle a "staliomem" read and write operations. This device - * is the contents of the board shared memory. It is used for down - * loading the slave image (and debugging :-) - */ - -STATIC int stli_memrw(dev_t dev, struct uio *uiop, int flag) -{ - stlibrd_t *brdp; - void *memptr; - int brdnr, size, n, error, x; - -#if DEBUG - printf("stli_memrw(dev=%x,uiop=%x,flag=%x)\n", (int) dev, - (int) uiop, flag); -#endif - - brdnr = minor(dev) & 0x7; - brdp = stli_brds[brdnr]; - if (brdp == (stlibrd_t *) NULL) - return(ENODEV); - if (brdp->state == 0) - return(ENODEV); - - if (uiop->uio_offset >= brdp->memsize) - return(0); - - error = 0; - size = brdp->memsize - uiop->uio_offset; - - x = spltty(); - EBRDENABLE(brdp); - while (size > 0) { - memptr = (void *) EBRDGETMEMPTR(brdp, uiop->uio_offset); - n = MIN(size, (brdp->pagesize - - (((unsigned long) uiop->uio_offset) % brdp->pagesize))); - error = uiomove(memptr, n, uiop); - if ((uiop->uio_resid == 0) || error) - break; - } - EBRDDISABLE(brdp); - splx(x); - - return(error); -} - -/*****************************************************************************/ - -/* - * The "staliomem" device is also required to do some special operations - * on the board. We need to be able to send an interrupt to the board, - * reset it, and start/stop it. - */ - -static int stli_memioctl(dev_t dev, unsigned long cmd, caddr_t data, int flag, - struct thread *td) -{ - stlibrd_t *brdp; - int brdnr, rc; - -#if DEBUG - printf("stli_memioctl(dev=%s,cmd=%lx,data=%p,flag=%x)\n", - devtoname(dev), cmd, (void *) data, flag); -#endif - - brdnr = minor(dev) & 0x7; - brdp = stli_brds[brdnr]; - if (brdp == (stlibrd_t *) NULL) - return(ENODEV); - if (brdp->state == 0) - return(ENODEV); - - rc = 0; - - switch (cmd) { - case STL_BINTR: - EBRDINTR(brdp); - break; - case STL_BSTART: - rc = stli_startbrd(brdp); - break; - case STL_BSTOP: - brdp->state &= ~BST_STARTED; - break; - case STL_BRESET: - brdp->state &= ~BST_STARTED; - EBRDRESET(brdp); - if (stli_shared == 0) { - if (brdp->reenable != NULL) - (* brdp->reenable)(brdp); - } - break; - case COM_GETPORTSTATS: - rc = stli_getportstats((stliport_t *) NULL, data); - break; - case COM_CLRPORTSTATS: - rc = stli_clrportstats((stliport_t *) NULL, data); - break; - case COM_GETBRDSTATS: - rc = stli_getbrdstats(data); - break; - default: - rc = ENOTTY; - break; - } - - return(rc); -} - -/*****************************************************************************/ |
