Source-Changes-HG archive
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Old Index]
[src/thorpej_scsipi]: src/sys/dev/podulebus Shared arm26/arm32 version of arm...
details: https://anonhg.NetBSD.org/src/rev/08eae5b2cf7d
branches: thorpej_scsipi
changeset: 477400:08eae5b2cf7d
user: bjh21 <bjh21%NetBSD.org@localhost>
date: Mon Mar 19 23:58:13 2001 +0000
description:
Shared arm26/arm32 version of arm26 Ether1 driver. Seems to work on both
architectures.
diffstat:
sys/dev/podulebus/if_ei.c | 376 +++++++++++++++++++++++++++++++++++++++++++
sys/dev/podulebus/if_eireg.h | 62 +++++++
2 files changed, 438 insertions(+), 0 deletions(-)
diffs (truncated from 446 to 300 lines):
diff -r d1ea803e5368 -r 08eae5b2cf7d sys/dev/podulebus/if_ei.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/dev/podulebus/if_ei.c Mon Mar 19 23:58:13 2001 +0000
@@ -0,0 +1,376 @@
+/* $NetBSD: if_ei.c,v 1.1.2.2 2001/03/19 23:58:13 bjh21 Exp $ */
+
+/*-
+ * Copyright (c) 2000, 2001 Ben Harris
+ * 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.
+ */
+/*
+ * if_ei.c -- driver for Acorn AKA25 Ether1 card
+ */
+/*
+ * This is not directly based on the arm32 ie driver, as that doesn't
+ * use the MI 82586 driver, and generally looks a mess (not to mention
+ * having dodgy copyright status). Let's try again.
+ */
+
+#include <sys/param.h>
+
+__RCSID("$NetBSD: if_ei.c,v 1.1.2.2 2001/03/19 23:58:13 bjh21 Exp $");
+
+#include <sys/device.h>
+#include <sys/malloc.h>
+#include <sys/reboot.h> /* For bootverbose */
+#include <sys/socket.h>
+#include <sys/syslog.h>
+#include <sys/systm.h>
+#include <net/if.h>
+#include <net/if_ether.h>
+#include <net/if_media.h>
+#include <machine/bus.h>
+#include <dev/ic/i82586reg.h>
+#include <dev/ic/i82586var.h>
+#include <dev/podulebus/podulebus.h>
+#include <dev/podulebus/podules.h>
+#include <dev/podulebus/if_eireg.h>
+
+/* Callbacks from the MI 82586 driver */
+static void ei_hwreset(struct ie_softc *, int);
+/* static void ei_hwinit(struct ie_softc *); */
+static void ei_attn(struct ie_softc *, int);
+static int ei_intrhook(struct ie_softc *, int);
+
+static void ei_copyin(struct ie_softc *, void *, int, size_t);
+static void ei_copyout(struct ie_softc *, const void *, int, size_t);
+static u_int16_t ei_read16(struct ie_softc *, int);
+static void ei_write16(struct ie_softc *, int, u_int16_t);
+static void ei_write24(struct ie_softc *, int, int);
+
+/* autoconfiguration glue */
+static int ei_match(struct device *, struct cfdata *, void *);
+static void ei_attach(struct device *, struct device *, void *);
+
+struct ei_softc {
+ struct ie_softc sc_ie;
+ bus_space_tag_t sc_ctl_t;
+ bus_space_handle_t sc_ctl_h;
+ bus_space_tag_t sc_mem_t;
+ bus_space_handle_t sc_mem_h;
+ bus_space_tag_t sc_rom_t;
+ bus_space_handle_t sc_rom_h;
+ u_int8_t sc_idrom[EI_ROMSIZE];
+ void *sc_ih;
+ struct evcnt sc_intrcnt;
+};
+
+struct cfattach ei_ca = {
+ sizeof(struct ei_softc), ei_match, ei_attach
+};
+
+static inline void
+ei_setpage(struct ei_softc *sc, int page)
+{
+
+ bus_space_write_1(sc->sc_ctl_t, sc->sc_ctl_h, EI_PAGE, page);
+}
+
+static inline void
+ei_cli(struct ei_softc *sc)
+{
+
+ bus_space_write_1(sc->sc_ctl_t, sc->sc_ctl_h, EI_CONTROL, EI_CTL_CLI);
+}
+
+static int
+ei_match(struct device *parent, struct cfdata *cf, void *aux)
+{
+ struct podulebus_attach_args *pa = aux;
+
+ return IS_PODULE(pa, MANUFACTURER_ACORN, PODULE_ACORN_ETHER1);
+}
+
+static void
+ei_attach(struct device *parent, struct device *self, void *aux)
+{
+ struct podulebus_attach_args *pa = aux;
+ struct ei_softc *sc = (struct ei_softc *)self;
+ int i;
+ char descr[16];
+
+ /* Set up bus spaces */
+ sc->sc_ctl_t = sc->sc_mem_t = pa->pa_fast_t;
+ bus_space_map(pa->pa_fast_t, pa->pa_fast_base, EI_MEMOFF, 0,
+ &sc->sc_ctl_h);
+ bus_space_map(pa->pa_fast_t, pa->pa_fast_base + EI_MEMOFF,
+ EI_PAGESIZE * 2, 0, &sc->sc_mem_h);
+ sc->sc_rom_t = pa->pa_sync_t;
+ bus_space_map(pa->pa_sync_t, pa->pa_sync_base, EI_ROMSIZE, 0,
+ &sc->sc_rom_h);
+
+ /* Set up callbacks */
+ sc->sc_ie.hwinit = NULL;
+ sc->sc_ie.intrhook = ei_intrhook;
+ sc->sc_ie.hwreset = ei_hwreset;
+ sc->sc_ie.chan_attn = ei_attn;
+
+ sc->sc_ie.memcopyin = ei_copyin;
+ sc->sc_ie.memcopyout = ei_copyout;
+
+ sc->sc_ie.ie_bus_barrier = NULL;
+ sc->sc_ie.ie_bus_read16 = ei_read16;
+ sc->sc_ie.ie_bus_write16 = ei_write16;
+ sc->sc_ie.ie_bus_write24 = ei_write24;
+
+ sc->sc_ie.do_xmitnopchain = 0; /* Does it listen? */
+
+ sc->sc_ie.sc_mediachange = NULL;
+ sc->sc_ie.sc_mediastatus = NULL;
+
+ sc->sc_ie.bt = sc->sc_mem_t; /* XXX hope it doesn't use them */
+ sc->sc_ie.bh = sc->sc_mem_h;
+
+ printf(":");
+
+ /* All Ether1s are 64k (I believe) */
+ sc->sc_ie.sc_msize = EI_MEMSIZE;
+
+ /* set up pointers to important on-card control structures */
+ sc->sc_ie.iscp = 0;
+ sc->sc_ie.scb = IE_ISCP_SZ;
+ sc->sc_ie.scp = sc->sc_ie.sc_msize + IE_SCP_ADDR - (1 << 24);
+
+ sc->sc_ie.buf_area = sc->sc_ie.scb + IE_SCB_SZ;
+ sc->sc_ie.buf_area_sz =
+ sc->sc_ie.sc_msize - IE_ISCP_SZ - IE_SCB_SZ - IE_SCP_SZ;
+
+ /* Wipe the whole of the card's memory */
+ for (i = 0; i < EI_NPAGES; i++) {
+ ei_setpage(sc, i);
+ bus_space_set_region_2(sc->sc_mem_t, sc->sc_mem_h,
+ 0, 0,EI_PAGESIZE / 2);
+ }
+
+ /* set up pointers to key structures */
+ ei_write24(&sc->sc_ie, IE_SCP_ISCP((u_long)sc->sc_ie.scp),
+ (u_long) sc->sc_ie.iscp);
+ ei_write16(&sc->sc_ie, IE_ISCP_SCB((u_long)sc->sc_ie.iscp),
+ (u_long) sc->sc_ie.scb);
+ ei_write24(&sc->sc_ie, IE_ISCP_BASE((u_long)sc->sc_ie.iscp),
+ (u_long) sc->sc_ie.iscp);
+
+ /* check if chip answers */
+ if (i82586_proberam(&sc->sc_ie) == 0) {
+ printf(" memory probe failed\n");
+ return;
+ }
+
+ /* Read ROM */
+ bus_space_read_region_1(sc->sc_rom_t, sc->sc_rom_h, 0,
+ sc->sc_idrom, EI_ROMSIZE);
+
+ snprintf(descr, 15, "AKA25 iss. %d", sc->sc_idrom[EI_ROM_HWREV]);
+ i82586_attach(&sc->sc_ie, descr, sc->sc_idrom + EI_ROM_EADDR,
+ NULL, 0, 0);
+
+ evcnt_attach_dynamic(&sc->sc_intrcnt, EVCNT_TYPE_INTR, NULL,
+ self->dv_xname, "intr");
+ sc->sc_ih = podulebus_irq_establish(pa->pa_ih, IPL_NET, i82586_intr,
+ self, &sc->sc_intrcnt);
+ ei_cli(sc);
+}
+
+static void
+ei_hwreset(struct ie_softc *sc_ie, int why)
+{
+ struct ei_softc *sc = (struct ei_softc *)sc_ie;
+
+ bus_space_write_1(sc->sc_ctl_t, sc->sc_ctl_h,
+ EI_CONTROL, EI_CTL_RESET);
+ DELAY(1000);
+ bus_space_write_1(sc->sc_ctl_t, sc->sc_ctl_h, EI_CONTROL, 0);
+ DELAY(1000);
+ ei_cli(sc);
+}
+
+static int
+ei_intrhook(struct ie_softc *sc_ie, int why)
+{
+ struct ei_softc *sc = (struct ei_softc *)sc_ie;
+
+ switch (why) {
+ case INTR_EXIT:
+ case INTR_ACK:
+ ei_cli(sc);
+ break;
+ }
+ return 0;
+}
+
+static void
+ei_attn(struct ie_softc *sc_ie, int why)
+{
+ struct ei_softc *sc = (void *)sc_ie;
+
+ bus_space_write_1(sc->sc_ctl_t, sc->sc_ctl_h, EI_CONTROL, EI_CTL_ATTN);
+}
+
+/*
+ * Various access functions to allow the MI 82586 driver to get at the
+ * board's memory. All memory accesses must go through these, as
+ * nothing else knows how to manipulate the page register. Note that
+ * all addresses and lengths passed in are in bytes of actual data.
+ * The bus_space functions deal in words, though, so we have to
+ * convert on the way through.
+ */
+
+static void
+ei_copyin(struct ie_softc *sc_ie, void *dest, int src, size_t size)
+{
+ struct ei_softc *sc = (struct ei_softc *)sc_ie;
+ int cnt, s, extra_byte;
+ u_int16_t *wptr;
+
+#ifdef DIAGNOSTIC
+ if (src % 2 != 0 || !ALIGNED_POINTER(dest, u_int16_t))
+ panic("%s: unaligned copyin", sc_ie->sc_dev.dv_xname);
+#endif
+ wptr = dest;
+ extra_byte = size % 2;
+ size -= extra_byte;
+ while (size > 0) {
+ cnt = EI_PAGESIZE - src % EI_PAGESIZE;
+ if (cnt > size)
+ cnt = size;
+ s = splnet();
+ ei_setpage(sc, ei_atop(src));
+ /* bus ops are in words */
+ bus_space_read_region_2(sc->sc_mem_t, sc->sc_mem_h,
+ ei_atopo(src) / 2, wptr, cnt / 2);
+ splx(s);
+ src += cnt;
+ wptr += cnt / 2;
+ size -= cnt;
+ }
+ if (extra_byte) {
+ /* Do we need to be this careful? */
+ s = splnet();
+ ei_setpage(sc, ei_atop(src));
+ *(u_int8_t *)wptr =
+ bus_space_read_2(sc->sc_mem_t, sc->sc_mem_h,
+ ei_atopo(src) / 2) & 0xff;
+ splx(s);
+ }
+}
+
+static void
+ei_copyout(struct ie_softc *sc_ie, const void *src, int dest, size_t size)
+{
+ struct ei_softc *sc = (struct ei_softc *)sc_ie;
+ int cnt, s;
+ const u_int16_t *wptr;
+ u_int16_t *bounce = NULL;
+
+#ifdef DIAGNOSTIC
+ if (dest % 2 != 0)
+ panic("%s: unaligned copyout", sc_ie->sc_dev.dv_xname);
Home |
Main Index |
Thread Index |
Old Index