frontend driver for the 16 port serial card by aurora technologies. this
doesn't quite work yet -- interrupt acknowledgement is hosed (and thus the device keeps interrupting). uses the newly commited cd18xx backend.
This commit is contained in:
mrg
parent
5d4f3fa900
commit
0cfedcb2eb
@ -1,4 +1,4 @@
|
||||
# $NetBSD: files.sbus,v 1.16 2000/12/08 17:29:12 martin Exp $
|
||||
# $NetBSD: files.sbus,v 1.17 2001/10/03 04:28:41 mrg Exp $
|
||||
#
|
||||
# Config file and device description for machine-independent SBUS code.
|
||||
# Included by ports that need it.
|
||||
@ -79,6 +79,12 @@ device mbpp
|
||||
attach mbpp at magma
|
||||
file dev/sbus/magma.c magma | mtty | mbpp needs-flag
|
||||
|
||||
device siosixteen { channel = -1 }
|
||||
attach siosixteen at sbus
|
||||
device clcd: tty, cd18xx
|
||||
attach clcd at siosixteen
|
||||
file dev/sbus/sio16.c siosixteen | clcd needs-flag
|
||||
|
||||
# STP4020 SBus to PCMCIA bridge (`nell' to her friends)
|
||||
device nell: pcmciabus
|
||||
attach nell at sbus
|
||||
|
||||
316
sys/dev/sbus/sio16.c
Normal file
316
sys/dev/sbus/sio16.c
Normal file
@ -0,0 +1,316 @@
|
||||
/* $NetBSD: sio16.c,v 1.1 2001/10/03 04:28:42 mrg Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright (c) 1998, 2001 Matthew R. Green
|
||||
* 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. The name of the author may not be used to endorse or promote products
|
||||
* derived from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
|
||||
*/
|
||||
|
||||
/*
|
||||
* aurora technologies nova16 driver. this board is an sbus card with
|
||||
* an external 16 port serial box. there are two cirrus logic cd180
|
||||
* 8 port serial chips used in the implementation.
|
||||
*
|
||||
* thanks go to Oliver Aldulea <oli@morcov.bv.ro> for writing the
|
||||
* linux driver of this that helped clear up a couple of issues.
|
||||
*/
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/conf.h>
|
||||
#include <sys/device.h>
|
||||
#include <sys/systm.h>
|
||||
|
||||
#include <machine/autoconf.h>
|
||||
#include <machine/conf.h>
|
||||
|
||||
#include <dev/ic/cd18xxvar.h>
|
||||
#include <dev/ic/cd18xxreg.h>
|
||||
|
||||
#include "ioconf.h"
|
||||
#include "locators.h"
|
||||
|
||||
/* 1600se configuration register bits */
|
||||
#define SIO16_CONFIGREG_ENABLE_IO 8
|
||||
#define SIO16_CONFIGREG_ENABLE_IRQ 4
|
||||
|
||||
/* 1600se interrupt ackknowledge register bytes */
|
||||
#define SIO16_MINT_ACK 1 /* modem interrupt acknowledge */
|
||||
#define SIO16_TINT_ACK 2 /* tx interrupt acknowledge */
|
||||
#define SIO16_RINT_ACK 3 /* rx interrupt acknowledge */
|
||||
|
||||
/*
|
||||
* device cfattach and cfdriver definitions, plus the routine we pass
|
||||
* to the cd18xx code or interrupt acknowledgement.
|
||||
*/
|
||||
static int sio16_match __P((struct device *, struct cfdata *, void *));
|
||||
static void sio16_attach __P((struct device *, struct device *, void *));
|
||||
static u_char sio16_ackfunc(void *, int who);
|
||||
|
||||
/*
|
||||
* define the sio16 per-device softc.
|
||||
*/
|
||||
struct sio16_softc {
|
||||
struct device sc_dev; /* must be first */
|
||||
struct sbusdev sc_sd; /* for sbus drivers */
|
||||
|
||||
/* sbus information */
|
||||
bus_space_tag_t sc_tag; /* bus tag for below */
|
||||
bus_space_handle_t sc_configreg; /* configuration register */
|
||||
bus_space_handle_t sc_reg[2]; /* cd180 register sets */
|
||||
bus_space_handle_t sc_ack; /* interrupt acknowledgement */
|
||||
#define SIO16_1600SE 0x00000001
|
||||
|
||||
u_int sc_clk;
|
||||
|
||||
/* cd180 information */
|
||||
int sc_ncd180;
|
||||
|
||||
};
|
||||
|
||||
struct cfattach siosixteen_ca = {
|
||||
sizeof(struct sio16_softc), sio16_match, sio16_attach
|
||||
};
|
||||
|
||||
struct sio16_attach_args {
|
||||
bus_space_tag_t cd_tag;
|
||||
bus_space_handle_t cd_handle;
|
||||
u_char (*cd_ackfunc)(void *, int);
|
||||
void *cd_ackfunc_arg;
|
||||
u_int cd_osc;
|
||||
};
|
||||
|
||||
/*
|
||||
* device match routine: is there an sio16 present?
|
||||
*
|
||||
* note that we can not put "sio16" in the cfdriver, as this is an
|
||||
* illegal name, so we have to hard code it here.
|
||||
*/
|
||||
#define SIO16_ROM_NAME "sio16"
|
||||
int
|
||||
sio16_match(parent, cf, aux)
|
||||
struct device *parent;
|
||||
struct cfdata *cf;
|
||||
void *aux;
|
||||
{
|
||||
struct sbus_attach_args *sa = aux;
|
||||
|
||||
/* does the prom think i'm an sio16? */
|
||||
if (strcmp(SIO16_ROM_NAME, sa->sa_name) != 0)
|
||||
return (0);
|
||||
|
||||
return (1);
|
||||
}
|
||||
|
||||
/*
|
||||
* device attach routine: go attach all sub devices.
|
||||
*/
|
||||
void
|
||||
sio16_attach(parent, self, aux)
|
||||
struct device *parent, *self;
|
||||
void *aux;
|
||||
{
|
||||
struct sbus_attach_args *sa = aux;
|
||||
struct sio16_softc *sc = (struct sio16_softc *)self;
|
||||
bus_space_handle_t h;
|
||||
char *mode, *model;
|
||||
int i;
|
||||
|
||||
if (sa->sa_nreg != 4)
|
||||
panic("sio16_attach: got %d registers intead of 4\n",
|
||||
sa->sa_nreg);
|
||||
|
||||
/* copy our bus tag, we will need it */
|
||||
sc->sc_tag = sa->sa_bustag;
|
||||
|
||||
/*
|
||||
* sio16 has 4 register mappings. a single byte configuration
|
||||
* register, 2 128 byte regions for the cd180 registers, and
|
||||
* a 4 byte region for interrupt acknowledgement.
|
||||
*/
|
||||
if (sbus_bus_map(sa->sa_bustag,
|
||||
sa->sa_reg[0].sbr_slot,
|
||||
sa->sa_reg[0].sbr_offset,
|
||||
sa->sa_reg[0].sbr_size,
|
||||
BUS_SPACE_MAP_LINEAR, 0, &h) != 0) {
|
||||
printf("%s at sbus: can not map registers 0\n",
|
||||
self->dv_xname);
|
||||
return;
|
||||
}
|
||||
sc->sc_configreg = h;
|
||||
if (sbus_bus_map(sa->sa_bustag,
|
||||
sa->sa_reg[1].sbr_slot,
|
||||
sa->sa_reg[1].sbr_offset,
|
||||
sa->sa_reg[1].sbr_size,
|
||||
BUS_SPACE_MAP_LINEAR, 0, &h) != 0) {
|
||||
printf("%s at sbus: can not map registers 1\n",
|
||||
self->dv_xname);
|
||||
return;
|
||||
}
|
||||
sc->sc_reg[0] = h;
|
||||
if (sbus_bus_map(sa->sa_bustag,
|
||||
sa->sa_reg[2].sbr_slot,
|
||||
sa->sa_reg[2].sbr_offset,
|
||||
sa->sa_reg[2].sbr_size,
|
||||
BUS_SPACE_MAP_LINEAR, 0, &h) != 0) {
|
||||
printf("%s at sbus: can not map registers 2\n",
|
||||
self->dv_xname);
|
||||
return;
|
||||
}
|
||||
sc->sc_reg[1] = h;
|
||||
if (sbus_bus_map(sa->sa_bustag,
|
||||
sa->sa_reg[3].sbr_slot,
|
||||
sa->sa_reg[3].sbr_offset,
|
||||
sa->sa_reg[3].sbr_size,
|
||||
BUS_SPACE_MAP_LINEAR, 0, &h) != 0) {
|
||||
printf("%s at sbus: can not map registers 3\n",
|
||||
self->dv_xname);
|
||||
return;
|
||||
}
|
||||
sc->sc_ack = h;
|
||||
|
||||
mode = PROM_getpropstring(sa->sa_node, "mode");
|
||||
if (mode)
|
||||
printf(", %s mode", mode);
|
||||
|
||||
/* get the clock frequency */
|
||||
sc->sc_clk = PROM_getpropint(sa->sa_node, "clk", 24000);
|
||||
|
||||
model = PROM_getpropstring(sa->sa_node, "model");
|
||||
if (model == 0) {
|
||||
printf(", no model property, bailing\n");
|
||||
return;
|
||||
}
|
||||
|
||||
/* are we an 1600se? */
|
||||
if (strcmp(model, "1600se") == 0) {
|
||||
printf(", 16 channels");
|
||||
sc->sc_ncd180 = 2;
|
||||
} else {
|
||||
printf(", don't know model %s, bailing\n", model);
|
||||
return;
|
||||
}
|
||||
|
||||
/* set up our sbus connections */
|
||||
sbus_establish(&sc->sc_sd, &sc->sc_dev);
|
||||
|
||||
/* establish interrupt channel */
|
||||
(void)bus_intr_establish(sa->sa_bustag, sa->sa_pri, IPL_TTY, 0,
|
||||
cd18xx_hardintr, sc);
|
||||
|
||||
/* reset the board, and turn on interrupts and I/O */
|
||||
bus_space_write_1(sa->sa_bustag, sc->sc_configreg, 0, 0);
|
||||
delay(100);
|
||||
bus_space_write_1(sa->sa_bustag, sc->sc_configreg, 0,
|
||||
SIO16_CONFIGREG_ENABLE_IO | SIO16_CONFIGREG_ENABLE_IRQ |
|
||||
(((sa->sa_pri) & 0x0f) >> 2));
|
||||
delay(10000);
|
||||
|
||||
printf("\n");
|
||||
|
||||
/* finally, configure the clcd's underneath */
|
||||
for (i = 0; i < sc->sc_ncd180; i++) {
|
||||
struct sio16_attach_args cd;
|
||||
|
||||
cd.cd_tag = sa->sa_bustag;
|
||||
cd.cd_osc = sc->sc_clk * 100;
|
||||
cd.cd_handle = (bus_space_handle_t)sc->sc_reg[i];
|
||||
cd.cd_ackfunc = sio16_ackfunc;
|
||||
cd.cd_ackfunc_arg = sc;
|
||||
(void)config_found(self, (void *)&cd, NULL);
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* note that the addresses used in this function match those assigned
|
||||
* in clcd_attach() below, or the various service match routines.
|
||||
*/
|
||||
u_char
|
||||
sio16_ackfunc(v, who)
|
||||
void *v;
|
||||
int who;
|
||||
{
|
||||
struct sio16_softc *sc = v;
|
||||
bus_size_t addr;
|
||||
|
||||
switch (who) {
|
||||
case CD18xx_INTRACK_RxINT:
|
||||
case CD18xx_INTRACK_REINT:
|
||||
addr = SIO16_RINT_ACK;
|
||||
break;
|
||||
case CD18xx_INTRACK_TxINT:
|
||||
addr = SIO16_TINT_ACK;
|
||||
break;
|
||||
case CD18xx_INTRACK_MxINT:
|
||||
addr = SIO16_MINT_ACK;
|
||||
break;
|
||||
default:
|
||||
panic("%s: sio16_ackfunc: unknown ackfunc %d",
|
||||
sc->sc_dev.dv_xname, who);
|
||||
}
|
||||
return (bus_space_read_1(sc->sc_tag, sc->sc_ack, addr));
|
||||
}
|
||||
|
||||
/*
|
||||
* we attach two `clcd' instances per 1600se, that each call the
|
||||
* backend cd18xx driver for help.
|
||||
*/
|
||||
static int clcd_match(struct device *, struct cfdata *, void *);
|
||||
static void clcd_attach(struct device *, struct device *, void *);
|
||||
|
||||
struct cfattach clcd_ca = {
|
||||
sizeof(struct cd18xx_softc), clcd_match, clcd_attach
|
||||
};
|
||||
|
||||
static int
|
||||
clcd_match(parent, cf, aux)
|
||||
struct device *parent;
|
||||
struct cfdata *cf;
|
||||
void *aux;
|
||||
{
|
||||
|
||||
/* XXX */
|
||||
return 1;
|
||||
}
|
||||
|
||||
static void
|
||||
clcd_attach(parent, self, aux)
|
||||
struct device *parent, *self;
|
||||
void *aux;
|
||||
{
|
||||
struct cd18xx_softc *sc = (struct cd18xx_softc *)self;
|
||||
struct sio16_attach_args *args = aux;
|
||||
|
||||
sc->sc_tag = args->cd_tag;
|
||||
sc->sc_handle = args->cd_handle;
|
||||
sc->sc_osc = args->cd_osc;
|
||||
sc->sc_ackfunc = args->cd_ackfunc;
|
||||
sc->sc_ackfunc_arg = args->cd_ackfunc_arg;
|
||||
sc->sc_msmr = SIO16_MINT_ACK;
|
||||
sc->sc_tsmr = SIO16_TINT_ACK;
|
||||
sc->sc_rsmr = SIO16_RINT_ACK;
|
||||
|
||||
/* call the common code */
|
||||
cd18xx_attach(sc);
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user