Initial import for IEEE1394 OHCI chipdet device driver and SBP-2 (Serial

Bus Protocol 2:SCSI over IEEE1394) support for CAM.

1 files changed, 254 insertions, 0 deletions

diff --git a/sys/dev/firewire/fwmem.c b/sys/dev/firewire/fwmem.c
new file mode 100644
index 0000000..6005fc8
--- /dev/null
+++ b/sys/dev/firewire/fwmem.c
@@ -0,0 +1,254 @@
+/*
+ * Copyright (C) 2002
+ * 	Hidetoshi Shimokawa. 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. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *
+ *	This product includes software developed by Hidetoshi Shimokawa.
+ *
+ * 4. Neither the name of the author nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
+ * 
+ * $FreeBSD$
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/types.h>
+
+#include <sys/kernel.h>
+#include <sys/malloc.h>
+#include <sys/conf.h>
+#include <sys/uio.h>
+#include <sys/sysctl.h>
+
+#include <sys/bus.h>
+
+#include <sys/signal.h>
+#include <sys/mman.h>
+#include <sys/ioccom.h>
+
+#include <dev/firewire/firewire.h>
+#include <dev/firewire/firewirereg.h>
+#include <dev/firewire/fwmem.h>
+
+static int fwmem_node=0, fwmem_speed=2, fwmem_debug=0;
+SYSCTL_DECL(_hw_firewire);
+SYSCTL_NODE(_hw_firewire, OID_AUTO, fwmem, CTLFLAG_RD, 0,
+	"Firewire Memory Access");
+SYSCTL_INT(_hw_firewire_fwmem, OID_AUTO, node, CTLFLAG_RW, &fwmem_node, 0,
+	"Fwmem target node");
+SYSCTL_INT(_hw_firewire_fwmem, OID_AUTO, speed, CTLFLAG_RW, &fwmem_speed, 0,
+	"Fwmem link speed");
+SYSCTL_INT(_debug, OID_AUTO, fwmem_debug, CTLFLAG_RW, &fwmem_debug, 0,
+	"Fwmem driver debug flag");
+
+struct fw_xfer *
+fwmem_read_quad(
+	struct firewire_comm *fc,
+	int dst,
+	u_int16_t dst_hi,
+	u_int32_t dst_lo
+	)
+{
+	struct fw_xfer *xfer;
+	struct fw_pkt *fp;
+	int err = 0;
+
+	xfer = fw_xfer_alloc();
+	if (xfer == NULL) {
+		err = ENOMEM;
+		return NULL;
+	}
+	xfer->fc = fc;
+	xfer->dst = FWLOCALBUS | dst;
+	xfer->spd = fwmem_speed; /* XXX */
+	xfer->send.len = 12;
+	xfer->send.buf = malloc(xfer->send.len, M_DEVBUF, M_NOWAIT | M_ZERO);
+	if (xfer->send.buf == NULL) {
+		err = ENOMEM;
+		goto error;
+	}
+	xfer->send.off = 0; 
+	xfer->act.hand = fw_asy_callback;
+	xfer->retry_req = fw_asybusy;
+	xfer->sc = NULL;
+
+	fp = (struct fw_pkt *)xfer->send.buf;
+	fp->mode.rreqq.tcode = FWTCODE_RREQQ;
+	fp->mode.rreqq.dst = htons(xfer->dst);
+	fp->mode.rreqq.dest_hi = htons(dst_hi);
+	fp->mode.rreqq.dest_lo = htonl(dst_lo);
+
+	if (fwmem_debug)
+		printf("fwmem: %d %04x:%08x\n", dst, dst_hi, dst_lo);
+	err = fw_asyreq(fc, -1, xfer);
+	if (err)
+		goto error;
+	err = tsleep((caddr_t)xfer, FWPRI, "fwmem", hz);
+	if (err == 0) {
+		return xfer;
+	}
+error:
+	fw_xfer_free(xfer);
+	return NULL;
+}
+
+struct fw_xfer *
+fwmem_read_block(
+	struct firewire_comm *fc,
+	int dst,
+	u_int16_t dst_hi,
+	u_int32_t dst_lo,
+	int len
+	)
+{
+	struct fw_xfer *xfer;
+	struct fw_pkt *fp;
+	int err = 0;
+
+	xfer = fw_xfer_alloc();
+	if (xfer == NULL) {
+		err = ENOMEM;
+		return NULL;
+	}
+	xfer->fc = fc;
+	xfer->dst = FWLOCALBUS | dst;
+	xfer->spd = fwmem_speed;	/* XXX */
+	xfer->send.len = 16;
+	xfer->send.buf = malloc(xfer->send.len, M_DEVBUF, M_NOWAIT | M_ZERO);
+	if (xfer->send.buf == NULL) {
+		err = ENOMEM;
+		goto error;
+	}
+	xfer->send.off = 0; 
+	xfer->act.hand = fw_asy_callback;
+	xfer->retry_req = fw_asybusy;
+	xfer->sc = NULL;
+
+	fp = (struct fw_pkt *)xfer->send.buf;
+	fp->mode.rreqb.tcode = FWTCODE_RREQB;
+	fp->mode.rreqb.dst = htons(xfer->dst);
+	fp->mode.rreqb.dest_hi = htons(dst_hi);
+	fp->mode.rreqb.dest_lo = htonl(dst_lo);
+	fp->mode.rreqb.len = htons(len);
+
+	if (fwmem_debug)
+		printf("fwmem: %d %04x:%08x %d\n", dst, dst_hi, dst_lo, len);
+	err = fw_asyreq(fc, -1, xfer);
+	if (err)
+		goto error;
+	err = tsleep((caddr_t)xfer, FWPRI, "fwmem", hz);
+	if (err == 0) {
+		return xfer;
+	}
+error:
+	fw_xfer_free(xfer);
+	return NULL;
+}
+
+int
+fwmem_open (dev_t dev, int flags, int fmt, fw_proc *td)
+{
+	int err = 0;
+	return err;
+}
+
+int
+fwmem_close (dev_t dev, int flags, int fmt, fw_proc *td)
+{
+	int err = 0;
+	return err;
+}
+
+#define MAXLEN 2048
+#define USE_QUAD 0
+int
+fwmem_read (dev_t dev, struct uio *uio, int ioflag)
+{
+	struct firewire_softc *sc;
+	struct firewire_comm *fc;
+	struct fw_xfer *xfer;
+	int err = 0, pad;
+        int unit = DEV2UNIT(dev);
+	u_int16_t dst_hi;
+	u_int32_t dst_lo;
+	off_t offset;
+	int len;
+
+	sc = devclass_get_softc(firewire_devclass, unit);
+	fc = sc->fc;
+
+	pad = uio->uio_offset % 4;
+	if  (fwmem_debug && pad != 0)
+		printf("unaligned\n");
+	while(uio->uio_resid > 0) {
+		offset = uio->uio_offset;
+		offset -= pad;
+		dst_hi = (offset >> 32) & 0xffff;
+		dst_lo = offset & 0xffffffff;
+#if USE_QUAD
+		xfer = fwmem_read_quad(fc, fwmem_node, dst_hi, dst_lo);
+		if (xfer == NULL || xfer->resp != 0 || xfer->recv.buf == NULL)
+			return EINVAL; /* XXX */
+		err = uiomove(xfer->recv.buf + xfer->recv.off + 4*3 + pad,
+			4 - pad, uio);
+#else
+		len = uio->uio_resid;
+		if (len > MAXLEN)
+			len = MAXLEN;
+		xfer = fwmem_read_block(fc, fwmem_node, dst_hi, dst_lo, len);
+		if (xfer == NULL || xfer->resp != 0 || xfer->recv.buf == NULL)
+			return EINVAL; /* XXX */
+		err = uiomove(xfer->recv.buf + xfer->recv.off + 4*4 + pad,
+			len - pad, uio);
+#endif
+		if (err)
+			return err;
+		fw_xfer_free(xfer);
+		pad = 0;
+	}
+	return err;
+}
+int
+fwmem_write (dev_t dev, struct uio *uio, int ioflag)
+{
+	return EINVAL;
+}
+int
+fwmem_ioctl (dev_t dev, u_long cmd, caddr_t data, int flag, fw_proc *td)
+{
+	return EINVAL;
+}
+int
+fwmem_poll (dev_t dev, int events, fw_proc *td)
+{  
+	return EINVAL;
+}
+int
+fwmem_mmap (dev_t dev, vm_offset_t offset, int nproto)
+{  
+	return EINVAL;
+}