Module Name: src
Committed By: phx
Date: Sun Oct 14 13:36:07 UTC 2012
Modified Files:
src/sys/arch/amiga/conf: files.amiga
Added Files:
src/sys/arch/amiga/dev: if_ed_zbus.c
Removed Files:
src/sys/arch/amiga/dev: if_ed.c if_edreg.h
Log Message:
New ed(4) device driver for Hydra and ASDG Zorro2 bus network cards.
This driver is based on the MI dp8390 backend.
To generate a diff of this commit:
cvs rdiff -u -r1.160 -r1.161 src/sys/arch/amiga/conf/files.amiga
cvs rdiff -u -r1.62 -r0 src/sys/arch/amiga/dev/if_ed.c
cvs rdiff -u -r0 -r1.1 src/sys/arch/amiga/dev/if_ed_zbus.c
cvs rdiff -u -r1.4 -r0 src/sys/arch/amiga/dev/if_edreg.h
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/amiga/conf/files.amiga
diff -u src/sys/arch/amiga/conf/files.amiga:1.160 src/sys/arch/amiga/conf/files.amiga:1.161
--- src/sys/arch/amiga/conf/files.amiga:1.160 Wed Jul 11 17:13:31 2012
+++ src/sys/arch/amiga/conf/files.amiga Sun Oct 14 13:36:07 2012
@@ -1,4 +1,4 @@
-# $NetBSD: files.amiga,v 1.160 2012/07/11 17:13:31 rkujawa Exp $
+# $NetBSD: files.amiga,v 1.161 2012/10/14 13:36:07 phx Exp $
# maxpartitions must be first item in files.${ARCH}.newconf
maxpartitions 16 # NOTE THAT AMIGA IS SPECIAL!
@@ -235,8 +235,8 @@ file arch/amiga/dev/if_ne_xsurf.c ne_xsu
# Hydra ethernet card
device ed: ifnet, ether, arp
-attach ed at zbus with ed_zbus
-file arch/amiga/dev/if_ed.c ed_zbus needs-flag
+attach ed at zbus with ed_zbus: dp8390nic
+file arch/amiga/dev/if_ed_zbus.c ed_zbus needs-flag
# C=/Ameristar A2060 / 560
attach bah at zbus with bah_zbus
Added files:
Index: src/sys/arch/amiga/dev/if_ed_zbus.c
diff -u /dev/null src/sys/arch/amiga/dev/if_ed_zbus.c:1.1
--- /dev/null Sun Oct 14 13:36:07 2012
+++ src/sys/arch/amiga/dev/if_ed_zbus.c Sun Oct 14 13:36:07 2012
@@ -0,0 +1,330 @@
+/* $NetBSD: if_ed_zbus.c,v 1.1 2012/10/14 13:36:07 phx Exp $ */
+
+/*-
+ * Copyright (c) 2012 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Frank Wille.
+ *
+ * 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.
+ */
+
+/*
+ * Device driver for the Hydra Systems and ASDG ethernet cards.
+ * Based on the National Semiconductor DS8390/WD83C690.
+ */
+
+#include <sys/cdefs.h>
+__KERNEL_RCSID(0, "$NetBSD: if_ed_zbus.c,v 1.1 2012/10/14 13:36:07 phx Exp $");
+
+#include <sys/param.h>
+#include <sys/device.h>
+#include <sys/bus.h>
+
+#include <net/if.h>
+#include <net/if_media.h>
+#include <net/if_ether.h>
+
+#include <dev/ic/dp8390reg.h>
+#include <dev/ic/dp8390var.h>
+
+#include <amiga/amiga/device.h>
+#include <amiga/amiga/isr.h>
+#include <amiga/dev/zbusvar.h>
+
+#define ETHER_PAD_LEN (ETHER_MIN_LEN - ETHER_CRC_LEN)
+
+/* Hydra Systems AmigaNet */
+#define HYDRA_MANID 2121
+#define HYDRA_PRODID 1
+#define HYDRA_REGADDR 0xffe1
+#define HYDRA_MEMADDR 0
+#define HYDRA_PROMADDR 0xffc0
+
+/* ASDG LANRover */
+#define ASDG_MANID 1023
+#define ASDG_PRODID 254
+#define ASDG_REGADDR 0x1
+#define ASDG_MEMADDR 0x8000
+#define ASDG_PROMADDR 0x100
+
+/* Buffer size is always 16k */
+#define ED_ZBUS_MEMSIZE 0x4000
+
+int ed_zbus_match(device_t, cfdata_t , void *);
+void ed_zbus_attach(device_t, device_t, void *);
+int ed_zbus_test_mem(struct dp8390_softc *);
+void ed_zbus_read_hdr(struct dp8390_softc *, int, struct dp8390_ring *);
+int ed_zbus_ring_copy(struct dp8390_softc *, int, void *, u_short);
+int ed_zbus_write_mbuf(struct dp8390_softc *, struct mbuf *, int);
+
+struct ed_zbus_softc {
+ struct dp8390_softc sc_dp8390;
+ struct bus_space_tag sc_bst;
+ struct isr sc_isr;
+};
+
+CFATTACH_DECL_NEW(ed_zbus, sizeof(struct ed_zbus_softc),
+ ed_zbus_match, ed_zbus_attach, NULL, NULL);
+
+
+int
+ed_zbus_match(device_t parent, cfdata_t cf, void *aux)
+{
+ struct zbus_args *zap = aux;
+
+ if (zap->manid == HYDRA_MANID && zap->prodid == HYDRA_PRODID)
+ return 1;
+ else if (zap->manid == ASDG_MANID && zap->prodid == ASDG_PRODID)
+ return 1;
+ return 0;
+}
+
+void
+ed_zbus_attach(device_t parent, device_t self, void *aux)
+{
+ struct ed_zbus_softc *zsc = device_private(self);
+ struct dp8390_softc *sc = &zsc->sc_dp8390;
+ struct zbus_args *zap = aux;
+ bus_space_handle_t promh;
+ bus_addr_t memaddr, promaddr, regaddr;
+ int i;
+
+ zsc->sc_bst.base = (bus_addr_t)zap->va;
+ zsc->sc_bst.absm = &amiga_bus_stride_1;
+
+ if (zap->manid == HYDRA_MANID) {
+ regaddr = HYDRA_REGADDR;
+ memaddr = HYDRA_MEMADDR;
+ promaddr = HYDRA_PROMADDR;
+ } else {
+ regaddr = ASDG_REGADDR;
+ memaddr = ASDG_MEMADDR;
+ promaddr = ASDG_PROMADDR;
+ }
+
+ sc->sc_dev = self;
+ sc->sc_regt = &zsc->sc_bst;
+ sc->sc_buft = &zsc->sc_bst;
+
+ if (bus_space_map(sc->sc_regt, regaddr, 0x20, 0, &sc->sc_regh)) {
+ aprint_error_dev(self, "can't map i/o space\n");
+ return;
+ }
+
+ if (bus_space_map(sc->sc_buft, memaddr, ED_ZBUS_MEMSIZE, 0,
+ &sc->sc_bufh)) {
+ aprint_error_dev(self, "can't map buffer space\n");
+ return;
+ }
+
+ /* SRAM buffer size is always 16K */
+ sc->mem_start = 0;
+ sc->mem_size = ED_ZBUS_MEMSIZE;
+
+ /*
+ * Read the ethernet address from the PROM.
+ * Interrupts must be inactive when reading the PROM, as the
+ * interrupt line is shared with one of its address lines.
+ */
+
+ NIC_PUT(sc->sc_regt, sc->sc_regh, ED_P0_IMR, 0x00);
+ NIC_PUT(sc->sc_regt, sc->sc_regh, ED_P0_ISR, 0xff);
+
+ if (bus_space_map(&zsc->sc_bst, promaddr, ETHER_ADDR_LEN * 2, 0,
+ &promh) == 0) {
+ for (i = 0; i < ETHER_ADDR_LEN; i++)
+ sc->sc_enaddr[i] =
+ bus_space_read_1(&zsc->sc_bst, promh, i * 2);
+
+ bus_space_unmap(&zsc->sc_bst, promh, ETHER_ADDR_LEN * 2);
+ }
+
+ /* Initialize sc_reg_map[]. Registers have stride 2 on the bus. */
+ for (i = 0; i < 16; i++)
+ sc->sc_reg_map[i] = i << 1;
+
+ /*
+ * Set 2 word FIFO threshold, no auto-init Remote DMA,
+ * byte order 68k, word-wide DMA xfers.
+ */
+ sc->dcr_reg = ED_DCR_FT0 | ED_DCR_WTS | ED_DCR_LS | ED_DCR_BOS;
+
+ /* Remote DMA abort .*/
+ sc->cr_proto = ED_CR_RD2;
+
+ /*
+ * Override all functions which deal with the buffer, because
+ * this implementation only allows 16-bit buffer accesses.
+ */
+ sc->test_mem = ed_zbus_test_mem;
+ sc->read_hdr = ed_zbus_read_hdr;
+ sc->ring_copy = ed_zbus_ring_copy;
+ sc->write_mbuf = ed_zbus_write_mbuf;
+
+ sc->sc_flags = device_cfdata(self)->cf_flags;
+ sc->is790 = 0;
+ sc->sc_media_init = dp8390_media_init;
+ sc->sc_enabled = 1;
+
+ /* Do generic DS8390/WD83C690 config. */
+ if (dp8390_config(sc)) {
+ bus_space_unmap(sc->sc_buft, sc->sc_bufh, ED_ZBUS_MEMSIZE);
+ bus_space_unmap(sc->sc_regt, sc->sc_regh, 0x10);
+ return;
+ }
+
+ /* establish level 2 interrupt handler */
+ zsc->sc_isr.isr_intr = dp8390_intr;
+ zsc->sc_isr.isr_arg = sc;
+ zsc->sc_isr.isr_ipl = 2;
+ add_isr(&zsc->sc_isr);
+}
+
+int
+ed_zbus_test_mem(struct dp8390_softc *sc)
+{
+ bus_space_tag_t buft = sc->sc_buft;
+ bus_space_handle_t bufh = sc->sc_bufh;
+ int i;
+
+ bus_space_set_region_2(buft, bufh, sc->mem_start, 0, sc->mem_size >> 1);
+
+ for (i = 0; i < sc->mem_size >> 1; i += 2) {
+ if (bus_space_read_2(sc->sc_buft, sc->sc_bufh, i)) {
+ printf(": failed to clear NIC buffer at offset %x - "
+ "check configuration\n", (sc->mem_start + i));
+ return 1;
+ }
+ }
+ return 0;
+}
+
+void
+ed_zbus_read_hdr(struct dp8390_softc *sc, int src, struct dp8390_ring *hdrp)
+{
+ bus_space_tag_t buft = sc->sc_buft;
+ bus_space_handle_t bufh = sc->sc_bufh;
+ uint16_t wrd;
+
+ /*
+ * Read the 4-byte header as two 16-bit words in little-endian
+ * format. Convert into big-endian and put them into hdrp.
+ */
+ wrd = bus_space_read_2(buft, bufh, src);
+ hdrp->rsr = wrd & 0xff;
+ hdrp->next_packet = wrd >> 8;
+ hdrp->count = bswap16(bus_space_read_2(buft, bufh, src + 2));
+}
+
+/*
+ * Copy `amount' bytes from a packet in the ring buffer to a linear
+ * destination buffer, given a source offset and destination address.
+ * Takes into account ring-wrap.
+ */
+int
+ed_zbus_ring_copy(struct dp8390_softc *sc, int src, void *dst, u_short amount)
+{
+ bus_space_tag_t buft = sc->sc_buft;
+ bus_space_handle_t bufh = sc->sc_bufh;
+ u_short tmp_amount;
+
+ /* Does copy wrap to lower addr in ring buffer? */
+ if (src + amount > sc->mem_end) {
+ tmp_amount = sc->mem_end - src;
+
+ /* Copy amount up to end of NIC memory. */
+ bus_space_read_region_2(buft, bufh, src, dst, tmp_amount >> 1);
+
+ amount -= tmp_amount;
+ src = sc->mem_ring;
+ dst = (char *)dst + tmp_amount;
+ }
+ bus_space_read_region_2(buft, bufh, src, dst, amount >> 1);
+
+ return src + amount;
+}
+
+/*
+ * Copy packet from mbuf to the board memory. Currently uses an extra
+ * buffer/extra memory copy, unless the whole packet fits in one mbuf.
+ * As in the test_mem function, we use word-wide writes.
+ */
+int
+ed_zbus_write_mbuf(struct dp8390_softc *sc, struct mbuf *m, int buf)
+{
+ u_char *data, savebyte[2];
+ int len, wantbyte;
+ u_short totlen = 0;
+
+ wantbyte = 0;
+
+ for (; m ; m = m->m_next) {
+ data = mtod(m, u_char *);
+ len = m->m_len;
+ totlen += len;
+ if (len > 0) {
+ /* Finish the last word. */
+ if (wantbyte) {
+ savebyte[1] = *data;
+ bus_space_write_region_2(sc->sc_buft,
+ sc->sc_bufh, buf, (u_int16_t *)savebyte, 1);
+ buf += 2;
+ data++;
+ len--;
+ wantbyte = 0;
+ }
+ /* Output contiguous words. */
+ if (len > 1) {
+ bus_space_write_region_2(
+ sc->sc_buft, sc->sc_bufh,
+ buf, (u_int16_t *)data, len >> 1);
+ buf += len & ~1;
+ data += len & ~1;
+ len &= 1;
+ }
+ /* Save last byte, if necessary. */
+ if (len == 1) {
+ savebyte[0] = *data;
+ wantbyte = 1;
+ }
+ }
+ }
+
+ len = ETHER_PAD_LEN - totlen;
+ if (wantbyte) {
+ savebyte[1] = 0;
+ bus_space_write_region_2(sc->sc_buft, sc->sc_bufh,
+ buf, (u_int16_t *)savebyte, 1);
+ buf += 2;
+ totlen++;
+ len--;
+ }
+ /* if sent data is shorter than EHTER_PAD_LEN, put 0 to padding */
+ if (len > 0) {
+ bus_space_set_region_2(sc->sc_buft, sc->sc_bufh, buf, 0,
+ len >> 1);
+ totlen = ETHER_PAD_LEN;
+ }
+ return totlen;
+}
