Split the ibfoo API into its own file.

Implement ibdma() (only affects ibrd() mode)
Implement ibeot()
This commit is contained in:
Poul-Henning Kamp 2005-02-12 17:39:50 +00:00
parent db60a05a92
commit 3ee4a2a426
4 changed files with 926 additions and 794 deletions

856
sys/dev/ieee488/ibfoo.c Normal file
View File

@ -0,0 +1,856 @@
/*-
* Copyright (c) 2005 Poul-Henning Kamp <phk@FreeBSD.org>
* 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.
*
* 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.
*
* High-level driver for µPD7210 based GPIB cards.
*
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
# define IBDEBUG
# undef IBDEBUG
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/conf.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
#include <sys/limits.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/uio.h>
#include <sys/time.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <isa/isavar.h>
#include <dev/ieee488/ugpib.h>
#define UPD7210_SW_DRIVER
#include <dev/ieee488/upd7210.h>
static MALLOC_DEFINE(M_IBFOO, "IBFOO", "IBFOO");
/* ibfoo API */
#include <dev/ieee488/ibfoo_int.h>
struct handle {
LIST_ENTRY(handle) list;
int handle;
int pad;
int sad;
struct timeval timeout;
int eot;
int eos;
int dma;
};
struct ibfoo {
struct upd7210 *upd7210;
LIST_HEAD(,handle) handles;
struct unrhdr *unrhdr;
enum {
IDLE,
PIO_IDATA,
DMA_IDATA,
PIO_ODATA,
PIO_CMD
} mode;
struct timeval deadline;
struct handle *rdh; /* addressed for read */
struct handle *wrh; /* addressed for write */
int doeoi;
u_char *buf;
u_int buflen;
};
static struct timeval timeouts[] = {
[TNONE] = { 0, 0},
[T10us] = { 0, 10},
[T30us] = { 0, 30},
[T100us] = { 0, 100},
[T300us] = { 0, 300},
[T1ms] = { 0, 1000},
[T3ms] = { 0, 3000},
[T10ms] = { 0, 10000},
[T30ms] = { 0, 30000},
[T100ms] = { 0, 100000},
[T300ms] = { 0, 300000},
[T1s] = { 1, 0},
[T3s] = { 3, 0},
[T10s] = { 10, 0},
[T30s] = { 30, 0},
[T100s] = { 100, 0},
[T300s] = { 300, 0},
[T1000s] = { 1000, 0}
};
static const u_int max_timeouts = sizeof timeouts / sizeof timeouts[0];
static int
deadyet(struct ibfoo *ib)
{
struct timeval tv;
if (!timevalisset(&ib->deadline))
return (0);
getmicrouptime(&tv);
if (timevalcmp(&ib->deadline, &tv, <)) {
printf("DEADNOW\n");
return (1);
}
return (0);
}
typedef int ibhandler_t(struct handle *h, struct upd7210 *u, struct ibfoo_iocarg *ap);
static int
gpib_ib_irq(struct upd7210 *u, int intr __unused)
{
struct ibfoo *ib;
ib = u->ibfoo;
switch (ib->mode) {
case PIO_CMD:
if (!(u->rreg[ISR2] & IXR2_CO))
return (0);
if (ib->buflen == 0)
break;
upd7210_wr(u, CDOR, *ib->buf);
ib->buf++;
ib->buflen--;
return (1);
case PIO_IDATA:
if (!(u->rreg[ISR1] & IXR1_DI))
return (0);
*ib->buf = upd7210_rd(u, DIR);
ib->buf++;
ib->buflen--;
if (ib->buflen == 0 || (u->rreg[ISR1] & IXR1_ENDRX))
break;
return (1);
case PIO_ODATA:
if (!(u->rreg[ISR1] & IXR1_DO))
return (0);
if (ib->buflen == 0)
break;
if (ib->buflen == 1 && ib->doeoi)
upd7210_wr(u, AUXMR, AUXMR_SEOI);
upd7210_wr(u, CDOR, *ib->buf);
ib->buf++;
ib->buflen--;
return (1);
case DMA_IDATA:
if (!(u->rreg[ISR1] & IXR1_ENDRX))
return (0);
break;
default:
return (0);
}
upd7210_wr(u, IMR1, 0);
upd7210_wr(u, IMR2, 0);
ib->mode = IDLE;
wakeup(ib);
return (1);
}
static void
config_eos(struct upd7210 *u, struct handle *h)
{
int i;
i = 0;
if (h->eos & REOS) {
upd7210_wr(u, EOSR, h->eos & 0xff);
i |= AUXA_REOS;
}
if (h->eos & XEOS) {
upd7210_wr(u, EOSR, h->eos & 0xff);
i |= AUXA_XEOS;
}
if (h->eos & BIN)
i |= AUXA_BIN;
upd7210_wr(u, AUXRA, C_AUXA | i);
}
/*
* Look up the handle, and set the deadline if the handle has a timeout.
*/
static int
gethandle(struct upd7210 *u, struct ibfoo_iocarg *ap, struct handle **hp)
{
struct ibfoo *ib;
struct handle *h;
KASSERT(ap->__field & __F_HANDLE, ("gethandle without __F_HANDLE"));
ib = u->ibfoo;
LIST_FOREACH(h, &ib->handles, list) {
if (h->handle == ap->handle) {
*hp = h;
if (timevalisset(&h->timeout)) {
getmicrouptime(&ib->deadline);
timevaladd(&ib->deadline, &h->timeout);
} else {
timevalclear(&ib->deadline);
}
return (0);
}
}
ap->__iberr = EARG;
return (1);
}
static int
pio_cmd(struct upd7210 *u, u_char *cmd, int len)
{
int i;
struct ibfoo *ib;
ib = u->ibfoo;
if (ib->rdh != NULL || ib->wrh != NULL) {
upd7210_take_ctrl_async(u);
ib->rdh = NULL;
ib->wrh = NULL;
}
mtx_lock(&u->mutex);
ib->mode = PIO_CMD;
ib->buf = cmd;
ib->buflen = len;
upd7210_wr(u, IMR2, IXR2_CO);
gpib_ib_irq(u, 1);
while (1) {
i = msleep(ib, &u->mutex, PZERO | PCATCH, "gpib_cmd", hz/10);
if (i == EINTR)
break;
if (u->rreg[ISR1] & IXR1_ERR)
break;
if (!ib->buflen)
break;
if (deadyet(ib))
break;
}
upd7210_wr(u, IMR2, 0);
mtx_unlock(&u->mutex);
return (0);
}
static int
pio_odata(struct upd7210 *u, u_char *data, int len)
{
int i;
struct ibfoo *ib;
ib = u->ibfoo;
if (len == 0)
return (0);
mtx_lock(&u->mutex);
ib->mode = PIO_ODATA;
ib->buf = data;
ib->buflen = len;
upd7210_wr(u, IMR1, IXR1_DO);
gpib_ib_irq(u, 1);
while (1) {
i = msleep(ib, &u->mutex, PZERO | PCATCH, "gpib_out", hz/100);
if (i == EINTR || i == 0)
break;
#if 0
if (u->rreg[ISR1] & IXR1_ERR)
break;
#endif
if (deadyet(ib))
break;
}
ib->mode = IDLE;
upd7210_wr(u, IMR1, 0);
upd7210_wr(u, IMR2, 0);
mtx_unlock(&u->mutex);
return (len - ib->buflen);
}
static int
pio_idata(struct upd7210 *u, u_char *data, int len)
{
int i;
struct ibfoo *ib;
ib = u->ibfoo;
mtx_lock(&u->mutex);
ib->mode = PIO_IDATA;
ib->buf = data;
ib->buflen = len;
upd7210_wr(u, IMR1, IXR1_DI);
while (1) {
i = msleep(ib, &u->mutex, PZERO | PCATCH,
"ib_pioidata", hz/100);
if (i == EINTR || i == 0)
break;
if (deadyet(u->ibfoo))
break;
}
ib->mode = IDLE;
upd7210_wr(u, IMR1, 0);
upd7210_wr(u, IMR2, 0);
mtx_unlock(&u->mutex);
if (deadyet(u->ibfoo)) {
return (-1);
} else {
return (len - ib->buflen);
}
}
static int
dma_idata(struct upd7210 *u, u_char *data, int len)
{
int i1, i2, i, j;
struct ibfoo *ib;
ib = u->ibfoo;
ib->mode = DMA_IDATA;
upd7210_wr(u, IMR1, IXR1_ENDRX);
mtx_lock(&Giant);
isa_dmastart(ISADMA_READ, data, len, u->dmachan);
mtx_unlock(&Giant);
mtx_lock(&u->mutex);
upd7210_wr(u, IMR2, IMR2_DMAI);
while (1) {
i = msleep(ib, &u->mutex, PZERO | PCATCH,
"gpib_idata", hz/100);
if (i == EINTR)
break;
if (isa_dmatc(u->dmachan))
break;
if (i == EWOULDBLOCK) {
i1 = upd7210_rd(u, ISR1);
i2 = upd7210_rd(u, ISR2);
} else {
i1 = u->rreg[ISR1];
i2 = u->rreg[ISR2];
}
if (i1 & IXR1_ENDRX)
break;
if (deadyet(ib))
break;
}
upd7210_wr(u, IMR1, 0);
upd7210_wr(u, IMR2, 0);
mtx_unlock(&u->mutex);
mtx_lock(&Giant);
j = isa_dmastatus(u->dmachan);
isa_dmadone(ISADMA_READ, data, len, u->dmachan);
mtx_unlock(&Giant);
if (deadyet(ib)) {
return (-1);
} else {
return (len - j);
}
}
#define ibask NULL
#define ibbna NULL
#define ibcac NULL
#define ibclr NULL
#define ibcmd NULL
#define ibcmda NULL
#define ibconfig NULL
static int
ibdev(struct handle *h, struct upd7210 *u, struct ibfoo_iocarg *ap)
{
struct ibfoo *ib;
if (ap->pad < 0 ||
ap->pad > 30 ||
(ap->sad != 0 && ap->sad < 0x60) ||
ap->sad > 126) {
ap->__retval = -1;
ap->__iberr = EARG;
return (0);
}
ib = u->ibfoo;
h = malloc(sizeof *h, M_IBFOO, M_ZERO | M_WAITOK);
h->handle = alloc_unr(ib->unrhdr);
LIST_INSERT_HEAD(&ib->handles, h, list);
h->pad = ap->pad;
h->sad = ap->sad;
h->timeout = timeouts[ap->tmo];
h->eot = ap->eot;
h->eos = ap->eos;
ap->__retval = h->handle;
return (0);
}
#define ibdiag NULL
static int
ibdma(struct handle *h, struct upd7210 *u, struct ibfoo_iocarg *ap)
{
h->dma = ap->v;
return (0);
}
static int
ibeos(struct handle *h, struct upd7210 *u, struct ibfoo_iocarg *ap)
{
struct ibfoo *ib;
ib = u->ibfoo;
h->eos = ap->eos;
if (ib->rdh == h)
config_eos(u, h);
ap->__retval = 0;
return (0);
}
static int
ibeot(struct handle *h, struct upd7210 *u, struct ibfoo_iocarg *ap)
{
struct ibfoo *ib;
ib = u->ibfoo;
h->eot = ap->eot;
return (0);
}
#define ibevent NULL
#define ibfind NULL
#define ibgts NULL
#define ibist NULL
#define iblines NULL
#define ibllo NULL
#define ibln NULL
#define ibloc NULL
#define ibonl NULL
#define ibpad NULL
#define ibpct NULL
#define ibpoke NULL
#define ibppc NULL
static int
ibrd(struct handle *h, struct upd7210 *u, struct ibfoo_iocarg *ap)
{
struct ibfoo *ib;
u_char buf[10], *bp;
int i, j, error, bl, bc;
u_char *dp;
ib = u->ibfoo;
bl = ap->cnt;
if (bl > PAGE_SIZE)
bl = PAGE_SIZE;
bp = malloc(bl, M_IBFOO, M_WAITOK);
if (ib->rdh != h) {
i = 0;
buf[i++] = UNT;
buf[i++] = UNL;
buf[i++] = LAD | 0;
buf[i++] = TAD | h->pad;
if (h->sad)
buf[i++] = h->sad;
i = pio_cmd(u, buf, i);
config_eos(u, h);
ib->rdh = h;
ib->wrh = NULL;
upd7210_goto_standby(u);
}
ap->__ibcnt = 0;
dp = ap->buffer;
bc = ap->cnt;
error = 0;
while (bc > 0) {
j = imin(bc, PAGE_SIZE);
if (h->dma)
i = dma_idata(u, bp, j);
else
i = pio_idata(u, bp, j);
if (i <= 0)
break;
error = copyout(bp, dp , i);
if (error)
break;
ap->__ibcnt += i;
if (i != j)
break;
bc -= i;
dp += i;
}
free(bp, M_IBFOO);
ap->__retval = 0;
return (error);
}
#define ibrda NULL
#define ibrdf NULL
#define ibrdkey NULL
#define ibrpp NULL
#define ibrsc NULL
#define ibrsp NULL
#define ibrsv NULL
#define ibsad NULL
#define ibsgnl NULL
#define ibsic NULL
#define ibsre NULL
#define ibsrq NULL
#define ibstop NULL
static int
ibtmo(struct handle *h, struct upd7210 *u, struct ibfoo_iocarg *ap)
{
h->timeout = timeouts[ap->tmo];
return (0);
}
#define ibtrap NULL
#define ibtrg NULL
#define ibwait NULL
static int
ibwrt(struct handle *h, struct upd7210 *u, struct ibfoo_iocarg *ap)
{
struct ibfoo *ib;
u_char buf[10], *bp;
int i;
ib = u->ibfoo;
bp = malloc(ap->cnt, M_IBFOO, M_WAITOK);
i = copyin(ap->buffer, bp, ap->cnt);
if (i) {
free(bp, M_IBFOO);
return (i);
}
if (ib->wrh != h) {
i = 0;
buf[i++] = UNT;
buf[i++] = UNL;
buf[i++] = LAD | h->pad;
if (h->sad)
buf[i++] = LAD | TAD | h->sad;
buf[i++] = TAD | 0;
i = pio_cmd(u, buf, i);
ib->rdh = NULL;
ib->wrh = h;
upd7210_goto_standby(u);
config_eos(u, h);
}
ib->doeoi = h->eot;
i = pio_odata(u, bp, ap->cnt);
ap->__ibcnt = i;
ap->__retval = 0;
free(bp, M_IBFOO);
return (0);
}
#define ibwrta NULL
#define ibwrtf NULL
#define ibwrtkey NULL
#define ibxtrc NULL
static struct ibhandler {
const char *name;
ibhandler_t *func;
u_int args;
} ibhandlers[] = {
[__ID_IBASK] = { "ibask", ibask, __F_HANDLE | __F_OPTION | __F_RETVAL },
[__ID_IBBNA] = { "ibbna", ibbna, __F_HANDLE | __F_BDNAME },
[__ID_IBCAC] = { "ibcac", ibcac, __F_HANDLE | __F_V },
[__ID_IBCLR] = { "ibclr", ibclr, __F_HANDLE },
[__ID_IBCMDA] = { "ibcmda", ibcmda, __F_HANDLE | __F_BUFFER | __F_CNT },
[__ID_IBCMD] = { "ibcmd", ibcmd, __F_HANDLE | __F_BUFFER | __F_CNT },
[__ID_IBCONFIG] = { "ibconfig", ibconfig, __F_HANDLE | __F_OPTION | __F_VALUE },
[__ID_IBDEV] = { "ibdev", ibdev, __F_BOARDID | __F_PAD | __F_SAD | __F_TMO | __F_EOT | __F_EOS },
[__ID_IBDIAG] = { "ibdiag", ibdiag, __F_HANDLE | __F_BUFFER | __F_CNT },
[__ID_IBDMA] = { "ibdma", ibdma, __F_HANDLE | __F_V },
[__ID_IBEOS] = { "ibeos", ibeos, __F_HANDLE | __F_EOS },
[__ID_IBEOT] = { "ibeot", ibeot, __F_HANDLE | __F_EOT },
[__ID_IBEVENT] = { "ibevent", ibevent, __F_HANDLE | __F_EVENT },
[__ID_IBFIND] = { "ibfind", ibfind, __F_BDNAME },
[__ID_IBGTS] = { "ibgts", ibgts, __F_HANDLE | __F_V },
[__ID_IBIST] = { "ibist", ibist, __F_HANDLE | __F_V },
[__ID_IBLINES] = { "iblines", iblines, __F_HANDLE | __F_LINES },
[__ID_IBLLO] = { "ibllo", ibllo, __F_HANDLE },
[__ID_IBLN] = { "ibln", ibln, __F_HANDLE | __F_PADVAL | __F_SADVAL | __F_LISTENFLAG },
[__ID_IBLOC] = { "ibloc", ibloc, __F_HANDLE },
[__ID_IBONL] = { "ibonl", ibonl, __F_HANDLE | __F_V },
[__ID_IBPAD] = { "ibpad", ibpad, __F_HANDLE | __F_V },
[__ID_IBPCT] = { "ibpct", ibpct, __F_HANDLE },
[__ID_IBPOKE] = { "ibpoke", ibpoke, __F_HANDLE | __F_OPTION | __F_VALUE },
[__ID_IBPPC] = { "ibppc", ibppc, __F_HANDLE | __F_V },
[__ID_IBRDA] = { "ibrda", ibrda, __F_HANDLE | __F_BUFFER | __F_CNT },
[__ID_IBRDF] = { "ibrdf", ibrdf, __F_HANDLE | __F_FLNAME },
[__ID_IBRDKEY] = { "ibrdkey", ibrdkey, __F_HANDLE | __F_BUFFER | __F_CNT },
[__ID_IBRD] = { "ibrd", ibrd, __F_HANDLE | __F_BUFFER | __F_CNT },
[__ID_IBRPP] = { "ibrpp", ibrpp, __F_HANDLE | __F_PPR },
[__ID_IBRSC] = { "ibrsc", ibrsc, __F_HANDLE | __F_V },
[__ID_IBRSP] = { "ibrsp", ibrsp, __F_HANDLE | __F_SPR },
[__ID_IBRSV] = { "ibrsv", ibrsv, __F_HANDLE | __F_V },
[__ID_IBSAD] = { "ibsad", ibsad, __F_HANDLE | __F_V },
[__ID_IBSGNL] = { "ibsgnl", ibsgnl, __F_HANDLE | __F_V },
[__ID_IBSIC] = { "ibsic", ibsic, __F_HANDLE },
[__ID_IBSRE] = { "ibsre", ibsre, __F_HANDLE | __F_V },
[__ID_IBSRQ] = { "ibsrq", ibsrq, __F_FUNC },
[__ID_IBSTOP] = { "ibstop", ibstop, __F_HANDLE },
[__ID_IBTMO] = { "ibtmo", ibtmo, __F_HANDLE | __F_TMO },
[__ID_IBTRAP] = { "ibtrap", ibtrap, __F_MASK | __F_MODE },
[__ID_IBTRG] = { "ibtrg", ibtrg, __F_HANDLE },
[__ID_IBWAIT] = { "ibwait", ibwait, __F_HANDLE | __F_MASK },
[__ID_IBWRTA] = { "ibwrta", ibwrta, __F_HANDLE | __F_BUFFER | __F_CNT },
[__ID_IBWRTF] = { "ibwrtf", ibwrtf, __F_HANDLE | __F_FLNAME },
[__ID_IBWRTKEY] = { "ibwrtkey", ibwrtkey, __F_HANDLE | __F_BUFFER | __F_CNT },
[__ID_IBWRT] = { "ibwrt", ibwrt, __F_HANDLE | __F_BUFFER | __F_CNT },
[__ID_IBXTRC] = { "ibxtrc", ibxtrc, __F_HANDLE | __F_BUFFER | __F_CNT },
};
static u_int max_ibhandler = sizeof ibhandlers / sizeof ibhandlers[0];
static int
gpib_ib_open(struct cdev *dev, int oflags, int devtype, struct thread *td)
{
struct upd7210 *u;
struct ibfoo *ib;
int error;
u = dev->si_drv1;
mtx_lock(&u->mutex);
if (u->busy) {
mtx_unlock(&u->mutex);
return (EBUSY);
}
u->busy = 1;
mtx_unlock(&u->mutex);
mtx_lock(&Giant);
error = isa_dma_acquire(u->dmachan);
if (!error) {
error = isa_dma_init(u->dmachan, PAGE_SIZE, M_WAITOK);
if (error)
isa_dma_release(u->dmachan);
}
mtx_unlock(&Giant);
if (error) {
mtx_lock(&u->mutex);
u->busy = 0;
mtx_unlock(&u->mutex);
return (error);
}
ib = malloc(sizeof *ib, M_IBFOO, M_WAITOK | M_ZERO);
LIST_INIT(&ib->handles);
ib->unrhdr = new_unrhdr(0, INT_MAX);
dev->si_drv2 = ib;
ib->upd7210 = u;
u->ibfoo = ib;
u->irq = gpib_ib_irq;
upd7210_wr(u, AUXMR, AUXMR_CRST);
DELAY(10000);
DELAY(1000);
upd7210_wr(u, IMR1, 0x00);
upd7210_wr(u, IMR2, 0x00);
upd7210_wr(u, SPMR, 0x00);
upd7210_wr(u, ADR, 0x00);
upd7210_wr(u, ADR, ADR_ARS | ADR_DL | ADR_DT);
upd7210_wr(u, ADMR, ADMR_ADM0 | ADMR_TRM0 | ADMR_TRM1);
upd7210_wr(u, EOSR, 0x00);
upd7210_wr(u, AUXMR, C_ICR | 8);
upd7210_wr(u, AUXMR, C_PPR | PPR_U);
upd7210_wr(u, AUXMR, C_AUXA);
upd7210_wr(u, AUXMR, C_AUXB + 3);
upd7210_wr(u, AUXMR, C_AUXE + 0);
upd7210_wr(u, AUXMR, AUXMR_PON);
upd7210_wr(u, AUXMR, AUXMR_CIFC);
DELAY(100);
upd7210_wr(u, AUXMR, AUXMR_SIFC);
upd7210_wr(u, AUXMR, AUXMR_SREN);
return (0);
}
static int
gpib_ib_close(struct cdev *dev, int oflags, int devtype, struct thread *td)
{
struct upd7210 *u;
struct ibfoo *ib;
u = dev->si_drv1;
ib = dev->si_drv2;
/* XXX: assert pointer consistency */
u->ibfoo = NULL;
/* XXX: free handles */
dev->si_drv2 = NULL;
free(ib, M_IBFOO);
mtx_lock(&Giant);
isa_dma_release(u->dmachan);
mtx_unlock(&Giant);
mtx_lock(&u->mutex);
u->busy = 0;
upd7210_wr(u, IMR1, 0x00);
upd7210_wr(u, IMR2, 0x00);
upd7210_wr(u, AUXMR, AUXMR_CRST);
DELAY(10000);
mtx_unlock(&u->mutex);
return (0);
}
static int
gpib_ib_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int fflag, struct thread *td)
{
struct ibfoo_iocarg *ap;
struct ibhandler *ih;
struct handle *h;
struct upd7210 *u;
int error;
u = dev->si_drv1;
if (cmd != GPIB_IBFOO)
return (ENOIOCTL);
ap = (void *)data;
if (ap->__ident < 0 || ap->__ident >= max_ibhandler)
return (EINVAL);
ih = &ibhandlers[ap->__ident];
if (ap->__field != ih->args)
return (EINVAL);
if (ap->__field & __F_TMO) {
if (ap->tmo < 0 || ap->tmo >= max_timeouts) {
ap->__retval = -1;
ap->__iberr = EARG;
return (0);
}
}
if (ap->__field & __F_EOS) {
if (ap->eos & ~(REOS | XEOS | BIN | 0xff)) {
ap->__retval = -1;
ap->__iberr = EARG;
return (0);
}
if (ap->eos & (REOS | XEOS)) {
if ((ap->eos & (BIN | 0x80)) == 0x80) {
ap->__retval = -1;
ap->__iberr = EARG;
return (0);
}
} else if (ap->eos != 0) {
ap->__retval = -1;
ap->__iberr = EARG;
return (0);
}
}
mtx_lock(&u->mutex);
while(u->busy != 1) {
error = msleep(u->ibfoo, &u->mutex, PZERO | PCATCH,
"gpib_ibioctl", 0);
if (error) {
mtx_unlock(&u->mutex);
return (EINTR);
}
}
u->busy = 2;
mtx_unlock(&u->mutex);
#ifdef IBDEBUG
if (ih->name != NULL)
printf("%s(", ih->name);
else
printf("ibinvalid(");
printf("[0x%x]", ap->__field);
if (ap->__field & __F_HANDLE) printf(" handle=%d", ap->handle);
if (ap->__field & __F_EOS) printf(" eos=%d", ap->eos);
if (ap->__field & __F_EOT) printf(" eot=%d", ap->eot);
if (ap->__field & __F_TMO) printf(" tmo=%d", ap->tmo);
if (ap->__field & __F_PAD) printf(" pad=%d", ap->pad);
if (ap->__field & __F_SAD) printf(" sad=%d", ap->sad);
if (ap->__field & __F_BUFFER) printf(" buffer=%p", ap->buffer);
if (ap->__field & __F_CNT) printf(" cnt=%ld", ap->cnt);
/* XXX more ... */
printf(")\n");
#endif
if (ap->__field & __F_HANDLE) {
if (gethandle(u, ap, &h)) {
error = 0; /* XXX iberr */
goto bail;
}
} else
h = NULL;
ap->__iberr = 0;
error = EOPNOTSUPP;
if (ih->func != NULL)
error = ih->func(h, u, ap);
if (error) {
ap->__retval = EDVR;
ap->__iberr = EDVR;
ap->__ibcnt = error;
} else if (ap->__iberr) {
ap->__retval = -1;
}
#ifdef IBDEBUG
printf("%s(...) = %d (error=%d)\n", ih->name, ap->__retval, error);
#endif
bail:
mtx_lock(&u->mutex);
u->busy = 1;
wakeup(u->ibfoo);
mtx_unlock(&u->mutex);
return (error);
}
struct cdevsw gpib_ib_cdevsw = {
.d_version = D_VERSION,
.d_name = "gpib_ib",
.d_open = gpib_ib_open,
.d_ioctl = gpib_ib_ioctl,
.d_close = gpib_ib_close,
};

View File

@ -51,6 +51,7 @@ __FBSDID("$FreeBSD$");
#include <sys/rman.h>
#include <isa/isavar.h>
#define UPD7210_HW_DRIVER
#include <dev/ieee488/upd7210.h>
struct pcii_softc {

View File

@ -49,23 +49,24 @@ __FBSDID("$FreeBSD$");
#include <machine/resource.h>
#include <isa/isavar.h>
#define UPD7210_HW_DRIVER
#define UPD7210_SW_DRIVER
#include <dev/ieee488/upd7210.h>
#include <dev/ieee488/ugpib.h>
static MALLOC_DEFINE(M_GPIB, "GPIB", "GPIB");
/* upd7210 generic stuff */
static void
print_isr(u_int isr1, u_int isr2)
void
upd7210_print_isr(u_int isr1, u_int isr2)
{
printf("isr1=0x%b isr2=0x%b",
isr1, "\20\10CPT\7APT\6DET\5ENDRX\4DEC\3ERR\2DO\1DI",
isr2, "\20\10INT\7SRQI\6LOK\5REM\4CO\3LOKC\2REMC\1ADSC");
}
static u_int
read_reg(struct upd7210 *u, enum upd7210_rreg reg)
u_int
upd7210_rd(struct upd7210 *u, enum upd7210_rreg reg)
{
u_int r;
@ -77,8 +78,8 @@ read_reg(struct upd7210 *u, enum upd7210_rreg reg)
return (r);
}
static void
write_reg(struct upd7210 *u, enum upd7210_wreg reg, u_int val)
void
upd7210_wr(struct upd7210 *u, enum upd7210_wreg reg, u_int val)
{
bus_space_write_1(
u->reg_tag[reg],
@ -97,90 +98,73 @@ upd7210intr(void *arg)
u = arg;
mtx_lock(&u->mutex);
isr1 = read_reg(u, ISR1);
isr2 = read_reg(u, ISR2);
if (u->busy == 0 || u->irq == NULL || !u->irq(u)) {
isr1 = upd7210_rd(u, ISR1);
isr2 = upd7210_rd(u, ISR2);
if (u->busy == 0 || u->irq == NULL || !u->irq(u, 1)) {
printf("upd7210intr [%02x %02x %02x",
read_reg(u, DIR), isr1, isr2);
upd7210_rd(u, DIR), isr1, isr2);
printf(" %02x %02x %02x %02x %02x] ",
read_reg(u, SPSR),
read_reg(u, ADSR),
read_reg(u, CPTR),
read_reg(u, ADR0),
read_reg(u, ADR1));
print_isr(isr1, isr2);
upd7210_rd(u, SPSR),
upd7210_rd(u, ADSR),
upd7210_rd(u, CPTR),
upd7210_rd(u, ADR0),
upd7210_rd(u, ADR1));
upd7210_print_isr(isr1, isr2);
printf("\n");
write_reg(u, IMR1, 0);
write_reg(u, IMR2, 0);
upd7210_wr(u, IMR1, 0);
upd7210_wr(u, IMR2, 0);
}
mtx_unlock(&u->mutex);
}
static int
int
upd7210_take_ctrl_async(struct upd7210 *u)
{
int i;
write_reg(u, AUXMR, AUXMR_TCA);
upd7210_wr(u, AUXMR, AUXMR_TCA);
if (!(read_reg(u, ADSR) & ADSR_ATN))
if (!(upd7210_rd(u, ADSR) & ADSR_ATN))
return (0);
for (i = 0; i < 20; i++) {
DELAY(1);
if (!(read_reg(u, ADSR) & ADSR_ATN))
if (!(upd7210_rd(u, ADSR) & ADSR_ATN))
return (0);
}
return (1);
}
static int
int
upd7210_goto_standby(struct upd7210 *u)
{
int i;
write_reg(u, AUXMR, AUXMR_GTS);
upd7210_wr(u, AUXMR, AUXMR_GTS);
if (read_reg(u, ADSR) & ADSR_ATN)
if (upd7210_rd(u, ADSR) & ADSR_ATN)
return (0);
for (i = 0; i < 20; i++) {
DELAY(1);
if (read_reg(u, ADSR) & ADSR_ATN)
if (upd7210_rd(u, ADSR) & ADSR_ATN)
return (0);
}
return (1);
}
static int
deadyet(struct upd7210 *u)
{
struct timeval tv;
if (!timevalisset(&u->deadline))
return (0);
getmicrouptime(&tv);
if (timevalcmp(&u->deadline, &tv, <)) {
printf("DEADNOW\n");
return (1);
}
return (0);
}
/* Unaddressed Listen Only mode */
static int
gpib_l_irq(struct upd7210 *u)
gpib_l_irq(struct upd7210 *u, int intr __unused)
{
int i;
if (u->rreg[ISR1] & 1) {
i = read_reg(u, DIR);
i = upd7210_rd(u, DIR);
u->buf[u->buf_wp++] = i;
u->buf_wp &= (u->bufsize - 1);
i = (u->buf_rp + u->bufsize - u->buf_wp) & (u->bufsize - 1);
if (i < 8)
write_reg(u, IMR1, 0);
upd7210_wr(u, IMR1, 0);
wakeup(u->buf);
return (1);
}
@ -206,15 +190,15 @@ gpib_l_open(struct cdev *dev, int oflags, int devtype, struct thread *td)
u->buf_wp = 0;
u->buf_rp = 0;
write_reg(u, AUXMR, AUXMR_CRST);
upd7210_wr(u, AUXMR, AUXMR_CRST);
DELAY(10000);
write_reg(u, AUXMR, C_ICR | 8);
upd7210_wr(u, AUXMR, C_ICR | 8);
DELAY(1000);
write_reg(u, ADR, 0x60);
write_reg(u, ADR, 0xe0);
write_reg(u, ADMR, 0x70);
write_reg(u, AUXMR, AUXMR_PON);
write_reg(u, IMR1, 0x01);
upd7210_wr(u, ADR, 0x60);
upd7210_wr(u, ADR, 0xe0);
upd7210_wr(u, ADMR, 0x70);
upd7210_wr(u, AUXMR, AUXMR_PON);
upd7210_wr(u, IMR1, 0x01);
return (0);
}
@ -227,10 +211,10 @@ gpib_l_close(struct cdev *dev, int oflags, int devtype, struct thread *td)
mtx_lock(&u->mutex);
u->busy = 0;
write_reg(u, AUXMR, AUXMR_CRST);
upd7210_wr(u, AUXMR, AUXMR_CRST);
DELAY(10000);
write_reg(u, IMR1, 0x00);
write_reg(u, IMR2, 0x00);
upd7210_wr(u, IMR1, 0x00);
upd7210_wr(u, IMR2, 0x00);
free(u->buf, M_GPIB);
u->buf = NULL;
mtx_unlock(&u->mutex);
@ -272,7 +256,7 @@ gpib_l_read(struct cdev *dev, struct uio *uio, int ioflag)
u->buf_rp &= (u->bufsize - 1);
}
if (u->wreg[IMR1] == 0)
write_reg(u, IMR1, 0x01);
upd7210_wr(u, IMR1, 0x01);
mtx_unlock(&u->mutex);
return (error);
}
@ -285,736 +269,6 @@ static struct cdevsw gpib_l_cdevsw = {
.d_read = gpib_l_read,
};
/* ibfoo API */
#include <dev/ieee488/ibfoo_int.h>
struct handle {
LIST_ENTRY(handle) list;
int handle;
int pad;
int sad;
struct timeval timeout;
int eot;
int eos;
};
struct ibfoo {
struct upd7210 *upd7210;
LIST_HEAD(,handle) handles;
struct unrhdr *unrhdr;
u_char *cmdbuf;
u_int cmdlen;
struct handle *rdh; /* addressed for read */
struct handle *wrh; /* addressed for write */
u_char *dobuf;
u_int dolen;
int doeoi;
};
static struct timeval timeouts[] = {
[TNONE] = { 0, 0},
[T10us] = { 0, 10},
[T30us] = { 0, 30},
[T100us] = { 0, 100},
[T300us] = { 0, 300},
[T1ms] = { 0, 1000},
[T3ms] = { 0, 3000},
[T10ms] = { 0, 10000},
[T30ms] = { 0, 30000},
[T100ms] = { 0, 100000},
[T300ms] = { 0, 300000},
[T1s] = { 1, 0},
[T3s] = { 3, 0},
[T10s] = { 10, 0},
[T30s] = { 30, 0},
[T100s] = { 100, 0},
[T300s] = { 300, 0},
[T1000s] = { 1000, 0}
};
static u_int max_timeouts = sizeof timeouts / sizeof timeouts[0];
typedef int ibhandler_t(struct upd7210 *u, struct ibfoo_iocarg *ap);
static int
gpib_ib_irq(struct upd7210 *u)
{
struct ibfoo *ib;
ib = u->ibfoo;
if ((u->rreg[ISR2] & IXR2_CO) && ib->cmdbuf != NULL) {
if (ib->cmdlen == 0) {
wakeup(ib);
ib->cmdbuf = NULL;
write_reg(u, IMR2, 0);
return (1);
}
write_reg(u, CDOR, *ib->cmdbuf);
ib->cmdbuf++;
ib->cmdlen--;
return (1);
}
if ((u->rreg[ISR1] & IXR1_DO) && ib->dobuf != NULL) {
if (ib->dolen == 0) {
wakeup(ib);
ib->dobuf = NULL;
write_reg(u, IMR1, 0);
return (1);
}
if (ib->dolen == 1 && ib->doeoi)
write_reg(u, AUXMR, AUXMR_SEOI);
write_reg(u, CDOR, *ib->dobuf);
ib->dobuf++;
ib->dolen--;
return (1);
}
if (u->rreg[ISR1] & IXR1_ENDRX) {
write_reg(u, IMR1, 0);
wakeup(ib);
return (1);
}
return (0);
}
static void
config_eos(struct upd7210 *u, struct handle *h)
{
int i;
i = 0;
if (h->eos & REOS) {
write_reg(u, EOSR, h->eos & 0xff);
i |= AUXA_REOS;
}
if (h->eos & XEOS) {
write_reg(u, EOSR, h->eos & 0xff);
i |= AUXA_XEOS;
}
if (h->eos & BIN)
i |= AUXA_BIN;
write_reg(u, AUXRA, C_AUXA | i);
}
/*
* Look up the handle, and set the deadline if the handle has a timeout.
*/
static int
gethandle(struct upd7210 *u, struct ibfoo_iocarg *ap, struct handle **hp)
{
struct ibfoo *ib;
struct handle *h;
KASSERT(ap->__field & __F_HANDLE, ("gethandle without __F_HANDLE"));
ib = u->ibfoo;
LIST_FOREACH(h, &ib->handles, list) {
if (h->handle == ap->handle) {
*hp = h;
if (timevalisset(&h->timeout)) {
getmicrouptime(&u->deadline);
timevaladd(&u->deadline, &h->timeout);
} else {
timevalclear(&u->deadline);
}
return (0);
}
}
ap->__iberr = EARG;
return (1);
}
static int
do_cmd(struct upd7210 *u, u_char *cmd, int len)
{
int i, i1, i2;
struct ibfoo *ib;
ib = u->ibfoo;
if (ib->rdh != NULL || ib->wrh != NULL) {
upd7210_take_ctrl_async(u);
ib->rdh = NULL;
ib->wrh = NULL;
}
mtx_lock(&u->mutex);
ib->cmdbuf = cmd;
ib->cmdlen = len;
if (!(u->rreg[ISR2] & IXR2_CO)) {
i1 = read_reg(u, ISR1);
i2 = read_reg(u, ISR2);
#ifdef GPIB_DEBUG
print_isr(i1, i2);
printf("\n");
#endif
}
write_reg(u, IMR2, IXR2_CO);
if (u->rreg[ISR2] & IXR2_CO) {
write_reg(u, CDOR, *ib->cmdbuf);
ib->cmdbuf++;
ib->cmdlen--;
}
while (1) {
i = msleep(ib, &u->mutex, PZERO | PCATCH, "gpib_cmd", hz/10);
if (i == EINTR)
break;
if (u->rreg[ISR1] & IXR1_ERR)
break;
if (!ib->cmdlen)
break;
if (deadyet(u))
break;
}
write_reg(u, IMR2, 0);
mtx_unlock(&u->mutex);
return (0);
}
static int
do_odata(struct upd7210 *u, u_char *data, int len, int eos)
{
int i1, i2, i;
struct ibfoo *ib;
ib = u->ibfoo;
if (len == 0)
return (0);
mtx_lock(&u->mutex);
ib->dobuf = data;
ib->dolen = len;
ib->doeoi = 0;
if (!(u->rreg[ISR1] & IXR1_DO)) {
i1 = read_reg(u, ISR1);
i2 = read_reg(u, ISR2);
#ifdef GPIB_DEBUG
print_isr(i1, i2);
printf("\n");
#endif
}
write_reg(u, IMR1, IXR1_DO);
if (u->rreg[ISR1] & IXR1_DO) {
write_reg(u, CDOR, *ib->dobuf);
ib->dobuf++;
ib->dolen--;
}
while (1) {
i = msleep(ib, &u->mutex, PZERO | PCATCH, "gpib_out", hz/100);
if (i == EINTR)
break;
if (u->rreg[ISR1] & IXR1_ERR)
break;
if (!ib->dolen)
break;
if (deadyet(u))
break;
}
write_reg(u, IMR2, 0);
mtx_unlock(&u->mutex);
return (len - ib->dolen);
}
static int
do_idata(struct upd7210 *u, u_char *data, int len, int eos)
{
int i1, i2, i, j;
write_reg(u, IMR1, IXR1_ENDRX);
mtx_lock(&Giant);
isa_dmastart(ISADMA_READ, data, len, u->dmachan);
mtx_unlock(&Giant);
mtx_lock(&u->mutex);
write_reg(u, IMR2, IMR2_DMAI);
while (1) {
i = msleep(u->ibfoo, &u->mutex, PZERO | PCATCH,
"gpib_idata", hz/100);
if (i == EINTR)
break;
if (isa_dmatc(u->dmachan))
break;
if (i == EWOULDBLOCK) {
i1 = read_reg(u, ISR1);
i2 = read_reg(u, ISR2);
} else {
i1 = u->rreg[ISR1];
i2 = u->rreg[ISR2];
}
if (i1 & IXR1_ENDRX)
break;
if (deadyet(u))
break;
}
write_reg(u, IMR1, 0);
write_reg(u, IMR2, 0);
mtx_unlock(&u->mutex);
mtx_lock(&Giant);
j = isa_dmastatus(u->dmachan);
isa_dmadone(ISADMA_READ, data, len, u->dmachan);
mtx_unlock(&Giant);
if (deadyet(u)) {
return (-1);
} else {
return (len - j);
}
}
#define ibask NULL
#define ibbna NULL
#define ibcac NULL
#define ibclr NULL
#define ibcmd NULL
#define ibcmda NULL
#define ibconfig NULL
static int
ibdev(struct upd7210 *u, struct ibfoo_iocarg *ap)
{
struct handle *h;
struct ibfoo *ib;
if (ap->pad < 0 ||
ap->pad > 30 ||
(ap->sad != 0 && ap->sad < 0x60) ||
ap->sad > 126) {
ap->__retval = -1;
ap->__iberr = EARG;
return (0);
}
ib = u->ibfoo;
h = malloc(sizeof *h, M_GPIB, M_ZERO | M_WAITOK);
h->handle = alloc_unr(ib->unrhdr);
LIST_INSERT_HEAD(&ib->handles, h, list);
h->pad = ap->pad;
h->sad = ap->sad;
h->timeout = timeouts[ap->tmo];
h->eot = ap->eot;
h->eos = ap->eos;
ap->__retval = h->handle;
return (0);
}
#define ibdiag NULL
#define ibdma NULL
static int
ibeos(struct upd7210 *u, struct ibfoo_iocarg *ap)
{
struct handle *h;
struct ibfoo *ib;
if (gethandle(u, ap, &h))
return (0);
ib = u->ibfoo;
h->eos = ap->eos;
if (ib->rdh == h)
config_eos(u, h);
ap->__retval = 0;
return (0);
}
#define ibeot NULL
#define ibevent NULL
#define ibfind NULL
#define ibgts NULL
#define ibist NULL
#define iblines NULL
#define ibllo NULL
#define ibln NULL
#define ibloc NULL
#define ibonl NULL
#define ibpad NULL
#define ibpct NULL
#define ibpoke NULL
#define ibppc NULL
static int
ibrd(struct upd7210 *u, struct ibfoo_iocarg *ap)
{
struct ibfoo *ib;
struct handle *h;
u_char buf[10], *bp;
int i, j, error, bl, bc;
u_char *dp;
ib = u->ibfoo;
if (gethandle(u, ap, &h))
return (0);
bl = ap->cnt;
if (bl > PAGE_SIZE)
bl = PAGE_SIZE;
bp = malloc(bl, M_GPIB, M_WAITOK);
if (ib->rdh != h) {
i = 0;
buf[i++] = UNT;
buf[i++] = UNL;
buf[i++] = LAD | 0;
buf[i++] = TAD | h->pad;
if (h->sad)
buf[i++] = h->sad;
i = do_cmd(u, buf, i);
config_eos(u, h);
ib->rdh = h;
ib->wrh = NULL;
upd7210_goto_standby(u);
}
ap->__ibcnt = 0;
dp = ap->buffer;
bc = ap->cnt;
error = 0;
while (bc > 0) {
j = imin(bc, PAGE_SIZE);
i = do_idata(u, bp, j, 1);
if (i <= 0)
break;
error = copyout(bp, dp , i);
if (error)
break;
ap->__ibcnt += i;
if (i != j)
break;
bc -= i;
dp += i;
}
free(bp, M_GPIB);
ap->__retval = 0;
return (error);
}
#define ibrda NULL
#define ibrdf NULL
#define ibrdkey NULL
#define ibrpp NULL
#define ibrsc NULL
#define ibrsp NULL
#define ibrsv NULL
#define ibsad NULL
#define ibsgnl NULL
#define ibsic NULL
#define ibsre NULL
#define ibsrq NULL
#define ibstop NULL
static int
ibtmo(struct upd7210 *u, struct ibfoo_iocarg *ap)
{
struct handle *h;
if (gethandle(u, ap, &h))
return (0);
h->timeout = timeouts[ap->tmo];
return (0);
}
#define ibtrap NULL
#define ibtrg NULL
#define ibwait NULL
static int
ibwrt(struct upd7210 *u, struct ibfoo_iocarg *ap)
{
struct ibfoo *ib;
struct handle *h;
u_char buf[10], *bp;
int i;
ib = u->ibfoo;
if (gethandle(u, ap, &h))
return (0);
bp = malloc(ap->cnt, M_GPIB, M_WAITOK);
i = copyin(ap->buffer, bp, ap->cnt);
if (i) {
free(bp, M_GPIB);
return (i);
}
if (ib->wrh != h) {
i = 0;
buf[i++] = UNT;
buf[i++] = UNL;
buf[i++] = LAD | h->pad;
if (h->sad)
buf[i++] = LAD | TAD | h->sad;
buf[i++] = TAD | 0;
i = do_cmd(u, buf, i);
ib->rdh = NULL;
ib->wrh = h;
upd7210_goto_standby(u);
config_eos(u, h);
}
i = do_odata(u, bp, ap->cnt, 1);
ap->__ibcnt = i;
ap->__retval = 0;
free(bp, M_GPIB);
return (0);
}
#define ibwrta NULL
#define ibwrtf NULL
#define ibwrtkey NULL
#define ibxtrc NULL
static struct ibhandler {
const char *name;
ibhandler_t *func;
u_int args;
} ibhandlers[] = {
[__ID_IBASK] = { "ibask", ibask, __F_HANDLE | __F_OPTION | __F_RETVAL },
[__ID_IBBNA] = { "ibbna", ibbna, __F_HANDLE | __F_BDNAME },
[__ID_IBCAC] = { "ibcac", ibcac, __F_HANDLE | __F_V },
[__ID_IBCLR] = { "ibclr", ibclr, __F_HANDLE },
[__ID_IBCMDA] = { "ibcmda", ibcmda, __F_HANDLE | __F_BUFFER | __F_CNT },
[__ID_IBCMD] = { "ibcmd", ibcmd, __F_HANDLE | __F_BUFFER | __F_CNT },
[__ID_IBCONFIG] = { "ibconfig", ibconfig, __F_HANDLE | __F_OPTION | __F_VALUE },
[__ID_IBDEV] = { "ibdev", ibdev, __F_BOARDID | __F_PAD | __F_SAD | __F_TMO | __F_EOT | __F_EOS },
[__ID_IBDIAG] = { "ibdiag", ibdiag, __F_HANDLE | __F_BUFFER | __F_CNT },
[__ID_IBDMA] = { "ibdma", ibdma, __F_HANDLE | __F_V },
[__ID_IBEOS] = { "ibeos", ibeos, __F_HANDLE | __F_EOS },
[__ID_IBEOT] = { "ibeot", ibeot, __F_HANDLE | __F_V },
[__ID_IBEVENT] = { "ibevent", ibevent, __F_HANDLE | __F_EVENT },
[__ID_IBFIND] = { "ibfind", ibfind, __F_BDNAME },
[__ID_IBGTS] = { "ibgts", ibgts, __F_HANDLE | __F_V },
[__ID_IBIST] = { "ibist", ibist, __F_HANDLE | __F_V },
[__ID_IBLINES] = { "iblines", iblines, __F_HANDLE | __F_LINES },
[__ID_IBLLO] = { "ibllo", ibllo, __F_HANDLE },
[__ID_IBLN] = { "ibln", ibln, __F_HANDLE | __F_PADVAL | __F_SADVAL | __F_LISTENFLAG },
[__ID_IBLOC] = { "ibloc", ibloc, __F_HANDLE },
[__ID_IBONL] = { "ibonl", ibonl, __F_HANDLE | __F_V },
[__ID_IBPAD] = { "ibpad", ibpad, __F_HANDLE | __F_V },
[__ID_IBPCT] = { "ibpct", ibpct, __F_HANDLE },
[__ID_IBPOKE] = { "ibpoke", ibpoke, __F_HANDLE | __F_OPTION | __F_VALUE },
[__ID_IBPPC] = { "ibppc", ibppc, __F_HANDLE | __F_V },
[__ID_IBRDA] = { "ibrda", ibrda, __F_HANDLE | __F_BUFFER | __F_CNT },
[__ID_IBRDF] = { "ibrdf", ibrdf, __F_HANDLE | __F_FLNAME },
[__ID_IBRDKEY] = { "ibrdkey", ibrdkey, __F_HANDLE | __F_BUFFER | __F_CNT },
[__ID_IBRD] = { "ibrd", ibrd, __F_HANDLE | __F_BUFFER | __F_CNT },
[__ID_IBRPP] = { "ibrpp", ibrpp, __F_HANDLE | __F_PPR },
[__ID_IBRSC] = { "ibrsc", ibrsc, __F_HANDLE | __F_V },
[__ID_IBRSP] = { "ibrsp", ibrsp, __F_HANDLE | __F_SPR },
[__ID_IBRSV] = { "ibrsv", ibrsv, __F_HANDLE | __F_V },
[__ID_IBSAD] = { "ibsad", ibsad, __F_HANDLE | __F_V },
[__ID_IBSGNL] = { "ibsgnl", ibsgnl, __F_HANDLE | __F_V },
[__ID_IBSIC] = { "ibsic", ibsic, __F_HANDLE },
[__ID_IBSRE] = { "ibsre", ibsre, __F_HANDLE | __F_V },
[__ID_IBSRQ] = { "ibsrq", ibsrq, __F_FUNC },
[__ID_IBSTOP] = { "ibstop", ibstop, __F_HANDLE },
[__ID_IBTMO] = { "ibtmo", ibtmo, __F_HANDLE | __F_TMO },
[__ID_IBTRAP] = { "ibtrap", ibtrap, __F_MASK | __F_MODE },
[__ID_IBTRG] = { "ibtrg", ibtrg, __F_HANDLE },
[__ID_IBWAIT] = { "ibwait", ibwait, __F_HANDLE | __F_MASK },
[__ID_IBWRTA] = { "ibwrta", ibwrta, __F_HANDLE | __F_BUFFER | __F_CNT },
[__ID_IBWRTF] = { "ibwrtf", ibwrtf, __F_HANDLE | __F_FLNAME },
[__ID_IBWRTKEY] = { "ibwrtkey", ibwrtkey, __F_HANDLE | __F_BUFFER | __F_CNT },
[__ID_IBWRT] = { "ibwrt", ibwrt, __F_HANDLE | __F_BUFFER | __F_CNT },
[__ID_IBXTRC] = { "ibxtrc", ibxtrc, __F_HANDLE | __F_BUFFER | __F_CNT },
};
static u_int max_ibhandler = sizeof ibhandlers / sizeof ibhandlers[0];
static int
gpib_ib_open(struct cdev *dev, int oflags, int devtype, struct thread *td)
{
struct upd7210 *u;
struct ibfoo *ib;
int error;
u = dev->si_drv1;
mtx_lock(&u->mutex);
if (u->busy) {
mtx_unlock(&u->mutex);
return (EBUSY);
}
u->busy = 1;
mtx_unlock(&u->mutex);
mtx_lock(&Giant);
error = isa_dma_acquire(u->dmachan);
if (!error) {
error = isa_dma_init(u->dmachan, PAGE_SIZE, M_WAITOK);
if (error)
isa_dma_release(u->dmachan);
}
mtx_unlock(&Giant);
if (error) {
mtx_lock(&u->mutex);
u->busy = 0;
mtx_unlock(&u->mutex);
return (error);
}
ib = malloc(sizeof *ib, M_GPIB, M_WAITOK | M_ZERO);
LIST_INIT(&ib->handles);
ib->unrhdr = new_unrhdr(0, INT_MAX);
dev->si_drv2 = ib;
ib->upd7210 = u;
u->ibfoo = ib;
u->irq = gpib_ib_irq;
write_reg(u, AUXMR, AUXMR_CRST);
DELAY(10000);
DELAY(1000);
write_reg(u, IMR1, 0x00);
write_reg(u, IMR2, 0x00);
write_reg(u, SPMR, 0x00);
write_reg(u, ADR, 0x00);
write_reg(u, ADR, ADR_ARS | ADR_DL | ADR_DT);
write_reg(u, ADMR, ADMR_ADM0 | ADMR_TRM0 | ADMR_TRM1);
write_reg(u, EOSR, 0x00);
write_reg(u, AUXMR, C_ICR | 8);
write_reg(u, AUXMR, C_PPR | PPR_U);
write_reg(u, AUXMR, C_AUXA);
write_reg(u, AUXMR, C_AUXB + 3);
write_reg(u, AUXMR, C_AUXE + 0);
write_reg(u, AUXMR, AUXMR_PON);
write_reg(u, AUXMR, AUXMR_CIFC);
DELAY(100);
write_reg(u, AUXMR, AUXMR_SIFC);
write_reg(u, AUXMR, AUXMR_SREN);
return (0);
}
static int
gpib_ib_close(struct cdev *dev, int oflags, int devtype, struct thread *td)
{
struct upd7210 *u;
struct ibfoo *ib;
u = dev->si_drv1;
ib = dev->si_drv2;
/* XXX: assert pointer consistency */
u->ibfoo = NULL;
/* XXX: free handles */
dev->si_drv2 = NULL;
free(ib, M_GPIB);
mtx_lock(&Giant);
isa_dma_release(u->dmachan);
mtx_unlock(&Giant);
mtx_lock(&u->mutex);
u->busy = 0;
write_reg(u, IMR1, 0x00);
write_reg(u, IMR2, 0x00);
write_reg(u, AUXMR, AUXMR_CRST);
DELAY(10000);
mtx_unlock(&u->mutex);
return (0);
}
static int
gpib_ib_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int fflag, struct thread *td)
{
struct ibfoo_iocarg *ap;
struct ibhandler *ih;
struct upd7210 *u;
int error;
u = dev->si_drv1;
if (cmd != GPIB_IBFOO)
return (ENOIOCTL);
ap = (void *)data;
if (ap->__ident < 0 || ap->__ident >= max_ibhandler)
return (EINVAL);
ih = &ibhandlers[ap->__ident];
if (ap->__field != ih->args)
return (EINVAL);
if (ap->__field & __F_TMO) {
if (ap->tmo < 0 || ap->tmo >= max_timeouts) {
ap->__retval = -1;
ap->__iberr = EARG;
return (0);
}
}
if (ap->__field & __F_EOS) {
if (ap->eos & ~(REOS | XEOS | BIN | 0xff)) {
ap->__retval = -1;
ap->__iberr = EARG;
return (0);
}
if (ap->eos & (REOS | XEOS)) {
if ((ap->eos & (BIN | 0x80)) == 0x80) {
ap->__retval = -1;
ap->__iberr = EARG;
return (0);
}
} else if (ap->eos != 0) {
ap->__retval = -1;
ap->__iberr = EARG;
return (0);
}
}
mtx_lock(&u->mutex);
while(u->busy != 1) {
error = msleep(u->ibfoo, &u->mutex, PZERO | PCATCH,
"gpib_ibioctl", 0);
if (error) {
mtx_unlock(&u->mutex);
return (EINTR);
}
}
u->busy = 2;
mtx_unlock(&u->mutex);
#ifdef GPIB_DEBUG
if (ih->name != NULL)
printf("%s(", ih->name);
else
printf("ibinvalid(");
printf("[0x%x]", ap->__field);
if (ap->__field & __F_HANDLE) printf(" handle=%d", ap->handle);
if (ap->__field & __F_EOS) printf(" eos=%d", ap->eos);
if (ap->__field & __F_EOT) printf(" eot=%d", ap->eot);
if (ap->__field & __F_TMO) printf(" tmo=%d", ap->tmo);
if (ap->__field & __F_PAD) printf(" pad=%d", ap->pad);
if (ap->__field & __F_SAD) printf(" sad=%d", ap->sad);
if (ap->__field & __F_BUFFER) printf(" buffer=%p", ap->buffer);
if (ap->__field & __F_CNT) printf(" cnt=%ld", ap->cnt);
/* XXX more ... */
printf(")\n");
#endif
ap->__iberr = 0;
error = EOPNOTSUPP;
if (ih->func != NULL)
error = ih->func(u, ap);
if (error) {
ap->__retval = EDVR;
ap->__iberr = EDVR;
ap->__ibcnt = error;
} else if (ap->__iberr) {
ap->__retval = -1;
}
#ifdef GPIB_DEBUG
printf("%s(...) = %d (error=%d)\n", ih->name, ap->__retval, error);
#endif
mtx_lock(&u->mutex);
u->busy = 1;
wakeup(u->ibfoo);
mtx_unlock(&u->mutex);
return (error);
}
static struct cdevsw gpib_ib_cdevsw = {
.d_version = D_VERSION,
.d_name = "gpib_ib",
.d_open = gpib_ib_open,
.d_ioctl = gpib_ib_ioctl,
.d_close = gpib_ib_close,
};
/* Housekeeping */
void

View File

@ -35,16 +35,16 @@
* in an old manual for a VME board which used the chip.
*/
/* upd7210 interface definitions */
#ifndef _DEV_IEEE488_UPD7210_H_
#define _DEV_IEEE488_UPD7210_H_
#ifdef _KERNEL
struct upd7210;
struct ibfoo;
void upd7210intr(void *);
void upd7210attach(struct upd7210 *);
/* upd7210 interface definitions for HW drivers */
typedef int upd7210_irq_t(struct upd7210 *);
typedef int upd7210_irq_t(struct upd7210 *, int);
struct upd7210 {
bus_space_handle_t reg_handle[8];
@ -53,7 +53,6 @@ struct upd7210 {
u_int dmachan;
/* private stuff */
struct timeval deadline;
struct mtx mutex;
uint8_t rreg[8];
uint8_t wreg[8 + 8];
@ -70,6 +69,13 @@ struct upd7210 {
struct ibfoo *ibfoo;
};
#ifdef UPD7210_HW_DRIVER
void upd7210intr(void *);
void upd7210attach(struct upd7210 *);
#endif
#ifdef UPD7210_SW_DRIVER
/* upd7210 hardware definitions. */
/* Write registers */
@ -211,3 +217,18 @@ enum upd7210_rreg {
#define ADR1_DT1 (1 << 6) /* Disable Talker 1 */
#define ADR1_EOI (1 << 7) /* End or Identify */
/* Stuff from software drivers */
extern struct cdevsw gpib_l_cdevsw;
extern struct cdevsw gpib_ib_cdevsw;
/* Stuff from upd7210.c */
void upd7210_print_isr(u_int isr1, u_int isr2);
u_int upd7210_rd(struct upd7210 *u, enum upd7210_rreg reg);
void upd7210_wr(struct upd7210 *u, enum upd7210_wreg reg, u_int val);
int upd7210_take_ctrl_async(struct upd7210 *u);
int upd7210_goto_standby(struct upd7210 *u);
#endif /* UPD7210_SW_DRIVER */
#endif /* _KERNEL */
#endif /* _DEV_IEEE488_UPD7210_H_ */