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- Use MI ADAPTER_REQ_SET_XFER_MODE callback. 

- Nuke some magic numbers.
This commit is contained in:
tsutsui 2001-11-18 14:33:10 +00:00
parent 1dae310858
commit 689089f7a9
1 changed files with 92 additions and 34 deletions
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126
sys/dev/ic/iha.c
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@ -1,4 +1,4 @@
/* $NetBSD: iha.c,v 1.12 2001/11/17 21:26:12 tsutsui Exp $ */ /* $NetBSD: iha.c,v 1.13 2001/11/18 14:33:10 tsutsui Exp $ */
/* /*
* Initio INI-9xxxU/UW SCSI Device Driver * Initio INI-9xxxU/UW SCSI Device Driver
* *
@ -48,7 +48,7 @@
*/ */
#include <sys/cdefs.h> #include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: iha.c,v 1.12 2001/11/17 21:26:12 tsutsui Exp $"); __KERNEL_RCSID(0, "$NetBSD: iha.c,v 1.13 2001/11/18 14:33:10 tsutsui Exp $");
#include <sys/param.h> #include <sys/param.h>
#include <sys/systm.h> #include <sys/systm.h>
@ -74,7 +74,7 @@ __KERNEL_RCSID(0, "$NetBSD: iha.c,v 1.12 2001/11/17 21:26:12 tsutsui Exp $");
* SCSI Rate Table, indexed by FLAG_SCSI_RATE field of * SCSI Rate Table, indexed by FLAG_SCSI_RATE field of
* tcs flags. * tcs flags.
*/ */
static const u_int8_t iha_rate_tbl[8] = { static const u_int8_t iha_rate_tbl[] = {
/* fast 20 */ /* fast 20 */
/* nanosecond divide by 4 */ /* nanosecond divide by 4 */
12, /* 50ns, 20M */ 12, /* 50ns, 20M */
@ -86,6 +86,7 @@ static const u_int8_t iha_rate_tbl[8] = {
50, /* 200ns, 5M */ 50, /* 200ns, 5M */
62 /* 250ns, 4M */ 62 /* 250ns, 4M */
}; };
#define IHA_MAX_PERIOD 62
#ifdef notused #ifdef notused
static u_int16_t eeprom_default[EEPROM_SIZE] = { static u_int16_t eeprom_default[EEPROM_SIZE] = {
@ -228,6 +229,7 @@ static void iha_abort_xs(struct iha_softc *, struct scsipi_xfer *, u_int8_t);
void iha_scsipi_request(struct scsipi_channel *, scsipi_adapter_req_t, void iha_scsipi_request(struct scsipi_channel *, scsipi_adapter_req_t,
void *arg); void *arg);
void iha_update_xfer_mode(struct iha_softc *, int);
/* /*
* iha_intr - the interrupt service routine for the iha driver * iha_intr - the interrupt service routine for the iha driver
@ -352,7 +354,30 @@ iha_scsipi_request(chan, req, arg)
return; /* XXX */ return; /* XXX */
case ADAPTER_REQ_SET_XFER_MODE: case ADAPTER_REQ_SET_XFER_MODE:
return; /* XXX */ {
struct tcs *tcs;
struct scsipi_xfer_mode *xm = arg;
tcs = &sc->sc_tcs[xm->xm_target];
if ((xm->xm_mode & PERIPH_CAP_WIDE16) != 0 &&
(tcs->flags & FLAG_NO_WIDE) == 0)
tcs->flags &= ~(FLAG_WIDE_DONE|FLAG_SYNC_DONE);
if ((xm->xm_mode & PERIPH_CAP_SYNC) != 0 &&
(tcs->flags & FLAG_NO_SYNC) == 0)
tcs->flags &= ~FLAG_SYNC_DONE;
/*
* If we're not going to negotiate, send the
* notification now, since it won't happen later.
*/
if ((tcs->flags & (FLAG_WIDE_DONE|FLAG_SYNC_DONE)) ==
(FLAG_WIDE_DONE|FLAG_SYNC_DONE))
iha_update_xfer_mode(sc, xm->xm_target);
return;
}
} }
} }
@ -1997,13 +2022,16 @@ iha_msgin_extended(sc)
flags = sc->sc_actscb->tcs->flags; flags = sc->sc_actscb->tcs->flags;
if ((flags & FLAG_NO_WIDE) != 0) if ((flags & FLAG_NO_WIDE) != 0)
sc->sc_msg[2] = 0; /* Offer async xfers only */ /* Offer 8bit xfers only */
sc->sc_msg[2] = MSG_EXT_WDTR_BUS_8_BIT;
else if (sc->sc_msg[2] > 2) /* BAD MSG: 2 is max value */ else if (sc->sc_msg[2] > MSG_EXT_WDTR_BUS_32_BIT)
/* BAD MSG */
return (iha_msgout_reject(sc)); return (iha_msgout_reject(sc));
else if (sc->sc_msg[2] == 2) /* a request for 32 bit xfers*/ else if (sc->sc_msg[2] == MSG_EXT_WDTR_BUS_32_BIT)
sc->sc_msg[2] = 1; /* Offer 16 instead */ /* Offer 16bit instead */
sc->sc_msg[2] = MSG_EXT_WDTR_BUS_16_BIT;
else { else {
iha_wide_done(sc); iha_wide_done(sc);
@ -2041,29 +2069,31 @@ iha_msgin_sdtr(sc)
default_period = iha_rate_tbl[flags & FLAG_SCSI_RATE]; default_period = iha_rate_tbl[flags & FLAG_SCSI_RATE];
if (sc->sc_msg[3] == 0) /* target offered async only. Accept it. */ if (sc->sc_msg[3] == 0)
/* target offered async only. Accept it. */
return (0); return (0);
newoffer = 0; newoffer = 0;
if ((flags & FLAG_NO_SYNC) != 0) { if ((flags & FLAG_NO_SYNC) != 0) {
sc->sc_msg[3] = 0; sc->sc_msg[3] = 0;
newoffer = 1; newoffer = 1;
} }
if (sc->sc_msg[3] > IHA_MAX_OFFSET) { if (sc->sc_msg[3] > IHA_MAX_OFFSET) {
sc->sc_msg[3] = IHA_MAX_OFFSET; sc->sc_msg[3] = IHA_MAX_OFFSET;
newoffer = 1; newoffer = 1;
} }
if (sc->sc_msg[2] < default_period) { if (sc->sc_msg[2] < default_period) {
sc->sc_msg[2] = default_period; sc->sc_msg[2] = default_period;
newoffer = 1; newoffer = 1;
} }
if (sc->sc_msg[2] >= 59) { /* XXX magic */ if (sc->sc_msg[2] > IHA_MAX_PERIOD) {
/* Use async */
sc->sc_msg[3] = 0; sc->sc_msg[3] = 0;
newoffer = 1; newoffer = 1;
} }
return (newoffer); return (newoffer);
@ -2156,13 +2186,13 @@ static int
iha_msgout_sdtr(sc) iha_msgout_sdtr(sc)
struct iha_softc *sc; struct iha_softc *sc;
{ {
int rateindex; struct tcs *tcs = sc->sc_actscb->tcs;
rateindex = sc->sc_actscb->tcs->flags & FLAG_SCSI_RATE; tcs->flags |= FLAG_SYNC_DONE;
sc->sc_msg[0] = MSG_EXT_SDTR_LEN; sc->sc_msg[0] = MSG_EXT_SDTR_LEN;
sc->sc_msg[1] = MSG_EXT_SDTR; sc->sc_msg[1] = MSG_EXT_SDTR;
sc->sc_msg[2] = iha_rate_tbl[rateindex]; sc->sc_msg[2] = iha_rate_tbl[tcs->flags & FLAG_SCSI_RATE];
sc->sc_msg[3] = IHA_MAX_OFFSET; /* REQ/ACK */ sc->sc_msg[3] = IHA_MAX_OFFSET; /* REQ/ACK */
return (iha_msgout_extended(sc)); return (iha_msgout_extended(sc));
@ -2187,6 +2217,8 @@ iha_wide_done(sc)
tcs->flags &= ~FLAG_SYNC_DONE; tcs->flags &= ~FLAG_SYNC_DONE;
tcs->flags |= FLAG_WIDE_DONE; tcs->flags |= FLAG_WIDE_DONE;
iha_update_xfer_mode(sc, sc->sc_actscb->target);
bus_space_write_1(iot, ioh, TUL_SCONFIG0, tcs->sconfig0); bus_space_write_1(iot, ioh, TUL_SCONFIG0, tcs->sconfig0);
bus_space_write_1(iot, ioh, TUL_SYNCM, tcs->syncm); bus_space_write_1(iot, ioh, TUL_SYNCM, tcs->syncm);
} }
@ -2200,26 +2232,26 @@ iha_sync_done(sc)
struct tcs *tcs = sc->sc_actscb->tcs; struct tcs *tcs = sc->sc_actscb->tcs;
int i; int i;
if ((tcs->flags & FLAG_SYNC_DONE) == 0) { tcs->period = sc->sc_msg[2];
tcs->period = sc->sc_msg[2]; tcs->offset = sc->sc_msg[3];
tcs->offset = sc->sc_msg[3]; if (tcs->offset != 0) {
if (tcs->offset != 0) { tcs->syncm |= tcs->offset;
tcs->syncm |= tcs->offset;
/* pick the highest possible rate */ /* pick the highest possible rate */
for (i = 0; i < 8; i++) for (i = 0; i < sizeof(iha_rate_tbl); i++)
if (iha_rate_tbl[i] >= tcs->period) if (iha_rate_tbl[i] >= tcs->period)
break; break;
tcs->syncm |= (i << 4); tcs->syncm |= (i << 4);
tcs->sconfig0 |= ALTPD; tcs->sconfig0 |= ALTPD;
}
tcs->flags |= FLAG_SYNC_DONE;
bus_space_write_1(iot, ioh, TUL_SCONFIG0, tcs->sconfig0);
bus_space_write_1(iot, ioh, TUL_SYNCM, tcs->syncm);
} }
tcs->flags |= FLAG_SYNC_DONE;
iha_update_xfer_mode(sc, sc->sc_actscb->target);
bus_space_write_1(iot, ioh, TUL_SCONFIG0, tcs->sconfig0);
bus_space_write_1(iot, ioh, TUL_SYNCM, tcs->syncm);
} }
void void
@ -2850,3 +2882,29 @@ iha_reset_tcs(tcs, config0)
tcs->syncm = 0; tcs->syncm = 0;
tcs->sconfig0 = config0; tcs->sconfig0 = config0;
} }
void
iha_update_xfer_mode(sc, target)
struct iha_softc *sc;
int target;
{
struct tcs *tcs = &sc->sc_tcs[target];
struct scsipi_xfer_mode xm;
xm.xm_target = target;
xm.xm_mode = 0;
xm.xm_period = 0;
xm.xm_offset = 0;
if (tcs->syncm & PERIOD_WIDE_SCSI)
xm.xm_mode |= PERIPH_CAP_WIDE16;
if (tcs->period) {
xm.xm_mode |= PERIPH_CAP_SYNC;
xm.xm_period = tcs->period;
xm.xm_offset = tcs->offset;
}
scsipi_async_event(&sc->sc_channel, ASYNC_EVENT_XFER_MODE, &xm);
}