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NetBSD prototype driver

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This commit is contained in:
Romain Dolbeau 2020-12-13 15:04:11 +01:00
parent a1dcf5ee91
commit 292ac54e7f
3 changed files with 315 additions and 0 deletions
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38
NetBSD/9.0/patch Normal file
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@ -0,0 +1,38 @@
diff -ur usr.orig/src/sys/arch/sparc/conf/majors.sparc usr/src/sys/arch/sparc/conf/majors.sparc
--- usr.orig/src/sys/arch/sparc/conf/majors.sparc 2019-01-28 03:29:00.000000000 +0100
+++ usr/src/sys/arch/sparc/conf/majors.sparc 2020-12-13 13:58:42.239971068 +0100
@@ -122,6 +122,7 @@
device-major joy char 137 joy
#device-major obsolete char 138 obsolete (opencrypto)
+device-major rdfpga char 139 rdfpga
# Majors up to 143 are reserved for machine-dependent drivers.
# New machine-independent driver majors are assigned in
diff -ur usr.orig/src/sys/dev/DEVNAMES usr/src/sys/dev/DEVNAMES
--- usr.orig/src/sys/dev/DEVNAMES 2019-11-25 21:47:25.000000000 +0100
+++ usr/src/sys/dev/DEVNAMES 2020-12-13 13:14:08.522443504 +0100
@@ -1144,6 +1144,7 @@
rbox hp300
rd hp300
rd vax
+rdfpga sparc
re MI
repulse amiga
repulse amigappc
diff -ur usr.orig/src/sys/dev/sbus/files.sbus usr/src/sys/dev/sbus/files.sbus
--- usr.orig/src/sys/dev/sbus/files.sbus 2019-05-08 15:40:19.000000000 +0200
+++ usr/src/sys/dev/sbus/files.sbus 2020-12-13 08:16:49.587203688 +0100
@@ -156,3 +156,10 @@
device mgx: fb, rasops8, rasops32, wsemuldisplaydev, vcons, glyphcache
attach mgx at sbus
file dev/sbus/mgx.c mgx
+
+#
+# Others
+#
+device rdfpga {}
+attach rdfpga at sbus
+file dev/sbus/rdfpga.c
Only in usr/src/sys/dev/sbus: rdfpga.c
Only in usr/src/sys/dev/sbus: rdfpga.h

224
NetBSD/9.0/usr/src/sys/dev/sbus/rdfpga.c Normal file
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/* $NetBSD$ */
/*-
* Copyright (c) 2020 Romain Dolbeau <romain@dolbeau.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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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>
__KERNEL_RCSID(0, "$NetBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/errno.h>
#include <sys/device.h>
#include <sys/malloc.h>
#include <sys/bus.h>
#include <machine/autoconf.h>
#include <sys/cpu.h>
#include <sys/conf.h>
#include <sys/ioccom.h>
#include <dev/sbus/sbusvar.h>
#include <dev/sbus/rdfpga.h>
int rdfpga_print(void *, const char *);
int rdfpga_match(device_t, cfdata_t, void *);
void rdfpga_attach(device_t, device_t, void *);
CFATTACH_DECL_NEW(rdfpga, sizeof(struct rdfpga_softc),
rdfpga_match, rdfpga_attach, NULL, NULL);
dev_type_open(rdfpga_open);
dev_type_close(rdfpga_close);
dev_type_ioctl(rdfpga_ioctl);
const struct cdevsw rdfpga_cdevsw = {
.d_open = rdfpga_open,
.d_close = rdfpga_close,
.d_read = noread,
.d_write = nowrite,
.d_ioctl = rdfpga_ioctl,
.d_stop = nostop,
.d_tty = notty,
.d_poll = nopoll,
.d_mmap = nommap,
.d_kqfilter = nokqfilter,
.d_discard = nodiscard,
.d_flag = 0
};
extern struct cfdriver rdfpga_cd;
struct rdfpga_128bits {
uint32_t x[4];
};
#define RDFPGA_WC _IOW(0, 1, struct rdfpga_128bits)
#define RDFPGA_WH _IOW(0, 2, struct rdfpga_128bits)
#define RDFPGA_WI _IOW(0, 3, struct rdfpga_128bits)
#define RDFPGA_RC _IOR(0, 4, struct rdfpga_128bits)
#define RDFPGA_WL _IOW(0, 1, uint32_t)
int
rdfpga_ioctl (dev_t dev, u_long cmd, void *data, int flag, struct lwp *l)
{
struct rdfpga_softc *sc = device_lookup_private(&rdfpga_cd, minor(dev));
struct rdfpga_128bits *bits = (struct rdfpga_128bits*)data;
int err = 0, i;
switch (cmd) {
case RDFPGA_WC:
for (i = 0 ; i < 4 ; i++)
bus_space_write_4(sc->sc_bustag, sc->sc_bhregs, (RDFPGA_REG_C + (i*4)), bits->x[i] );
break;
case RDFPGA_WH:
for (i = 0 ; i < 4 ; i++)
bus_space_write_4(sc->sc_bustag, sc->sc_bhregs, (RDFPGA_REG_H + (i*4)), bits->x[i] );
break;
case RDFPGA_WI:
for (i = 0 ; i < 4 ; i++)
bus_space_write_4(sc->sc_bustag, sc->sc_bhregs, (RDFPGA_REG_I + (i*4)), bits->x[i] );
break;
case RDFPGA_RC:
for (i = 0 ; i < 4 ; i++)
bits->x[i] = bus_space_read_4(sc->sc_bustag, sc->sc_bhregs, (RDFPGA_REG_C + (i*4)));
break;
case RDFPGA_WL:
bus_space_write_4(sc->sc_bustag, sc->sc_bhregs, RDFPGA_REG_LED, *(uint32_t*)data);
break;
default:
err = EINVAL;
break;
}
return(err);
}
int
rdfpga_open(dev_t dev, int flags, int mode, struct lwp *l)
{
struct rdfpga_softc *sc = device_lookup_private(&rdfpga_cd, minor(dev));
int i;
for (i = 0 ; i < 4 ; i++)
bus_space_write_4(sc->sc_bustag, sc->sc_bhregs, (RDFPGA_REG_C + (i*4)), 0);
for (i = 0 ; i < 4 ; i++)
bus_space_write_4(sc->sc_bustag, sc->sc_bhregs, (RDFPGA_REG_H + (i*4)), 0);
for (i = 0 ; i < 4 ; i++)
bus_space_write_4(sc->sc_bustag, sc->sc_bhregs, (RDFPGA_REG_I + (i*4)), 0);
return (0);
}
int
rdfpga_close(dev_t dev, int flags, int mode, struct lwp *l)
{
struct rdfpga_softc *sc = device_lookup_private(&rdfpga_cd, minor(dev));
int i;
for (i = 0 ; i < 4 ; i++)
bus_space_write_4(sc->sc_bustag, sc->sc_bhregs, (RDFPGA_REG_C + (i*4)), 0);
for (i = 0 ; i < 4 ; i++)
bus_space_write_4(sc->sc_bustag, sc->sc_bhregs, (RDFPGA_REG_H + (i*4)), 0);
for (i = 0 ; i < 4 ; i++)
bus_space_write_4(sc->sc_bustag, sc->sc_bhregs, (RDFPGA_REG_I + (i*4)), 0);
return (0);
}
int
rdfpga_print(void *aux, const char *busname)
{
sbus_print(aux, busname);
return (UNCONF);
}
int
rdfpga_match(device_t parent, cfdata_t cf, void *aux)
{
struct sbus_attach_args *sa = (struct sbus_attach_args *)aux;
return (strcmp("RDOL,SBusFPGA", sa->sa_name) == 0);
}
/*
* Attach all the sub-devices we can find
*/
void
rdfpga_attach(device_t parent, device_t self, void *aux)
{
struct sbus_attach_args *sa = aux;
struct rdfpga_softc *sc = device_private(self);
struct sbus_softc *sbsc = device_private(parent);
int node;
int sbusburst;
/* bus_dma_tag_t dt = sa->sa_dmatag; */
bus_space_handle_t bh;
sc->sc_bustag = sa->sa_bustag;
sc->sc_dev = self;
if (sbus_bus_map(sc->sc_bustag, sa->sa_slot, sa->sa_offset, sa->sa_size,
BUS_SPACE_MAP_LINEAR, &bh) != 0) {
aprint_error(": cannot map registers\n");
return;
}
sc->sc_bhregs = bh;
//sc->sc_buffer = bus_space_vaddr(sc->sc_bustag, sc->sc_bhregs);
sc->sc_bufsiz = sa->sa_size;
node = sc->sc_node = sa->sa_node;
/*
* Get transfer burst size from PROM
*/
sbusburst = sbsc->sc_burst;
if (sbusburst == 0)
sbusburst = SBUS_BURST_32 - 1; /* 1->16 */
sc->sc_burst = prom_getpropint(node, "burst-sizes", -1);
if (sc->sc_burst == -1)
/* take SBus burst sizes */
sc->sc_burst = sbusburst;
/* Clamp at parent's burst sizes */
sc->sc_burst &= sbusburst;
aprint_normal_dev(self, " nid %d, burst %x\n",
sc->sc_node,
sc->sc_burst);
/* change blink pattern */
bus_space_write_4(sc->sc_bustag, sc->sc_bhregs, RDFPGA_REG_LED , 0x81422418);
}

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NetBSD/9.0/usr/src/sys/dev/sbus/rdfpga.h Normal file
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/* $NetBSD$ */
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Paul Kranenburg.
*
* 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#ifndef _RDFPGA_H_
#define _RDFPGA_H_
struct rdfpga_softc {
device_t sc_dev; /* us as a device */
u_int sc_rev; /* revision */
int sc_node; /* PROM node ID */
int sc_burst; /* DVMA burst size in effect */
bus_space_tag_t sc_bustag; /* bus tag */
bus_space_handle_t sc_bhregs; /* bus handle */
//void * sc_buffer; /* VA of the registers */
int sc_bufsiz; /* Size of buffer */
int attached; /* 1: in use by `le' device */
};
#define RDFPGA_REG_LED 0x0
#define RDFPGA_REG_H 0x40
#define RDFPGA_REG_C 0x50
#define RDFPGA_REG_I 0x60
#endif /* _RDFPGA_H_ */