move wlcompat to the broadcom-wl package

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@9528 3c298f89-4303-0410-b956-a3cf2f4a3e73

10 files changed, 3941 insertions, 0 deletions

diff --git a/package/broadcom-wl/src/driver/Makefile b/package/broadcom-wl/src/driver/Makefile
new file mode 100644
index 0000000000..0a16bdcec0
--- /dev/null
+++ b/package/broadcom-wl/src/driver/Makefile
@@ -0,0 +1,31 @@
+#
+# Makefile for the Broadcom wl driver
+#
+# Copyright 2004, Broadcom Corporation
+# All Rights Reserved.
+# 
+# THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
+# KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
+# SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
+# FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
+#
+# $Id: Makefile,v 1.2 2005/03/29 03:32:18 mbm Exp $
+
+EXTRA_CFLAGS += -I$(TOPDIR)/arch/mips/bcm947xx/include -DBCMDRIVER=1 -DBCMDMA64=1
+
+O_TARGET	:= wl$(MOD_NAME).o
+
+obj-y		:= wl_mod$(MOD_NAME).o
+obj-y		+= bcmutils.o hnddma.o linux_osl.o
+
+obj-m		:= $(O_TARGET)
+
+wl_mod$(MOD_NAME).o: wl_apsta$(MOD_NAME).o
+	perl -ne 's,eth%d,wl%d\x00,g,print' < $< > $@
+
+wl$(MOD_NAME).o.patch: wl$(MOD_NAME).o
+	$(OBJDUMP) -d $< | perl patchtable.pl > $@
+
+modules: wl$(MOD_NAME).o.patch
+
+include $(TOPDIR)/Rules.make
diff --git a/package/broadcom-wl/src/driver/bcmip.h b/package/broadcom-wl/src/driver/bcmip.h
new file mode 100644
index 0000000000..423a0e5c5c
--- /dev/null
+++ b/package/broadcom-wl/src/driver/bcmip.h
@@ -0,0 +1,101 @@
+/*
+ * Copyright 2006, Broadcom Corporation
+ * All Rights Reserved.
+ * 
+ * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
+ * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
+ * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
+ *
+ * Fundamental constants relating to IP Protocol
+ *
+ * $Id: bcmip.h,v 1.1.1.3 2006/02/27 03:43:16 honor Exp $
+ */
+
+#ifndef _bcmip_h_
+#define _bcmip_h_
+
+/* IPV4 and IPV6 common */
+#define IP_VER_OFFSET		0x0	/* offset to version field */
+#define IP_VER_MASK		0xf0	/* version mask */
+#define IP_VER_SHIFT		4	/* version shift */
+#define IP_VER_4		4	/* version number for IPV4 */
+#define IP_VER_6		6	/* version number for IPV6 */
+
+#define IP_VER(ip_body) \
+	((((uint8 *)(ip_body))[IP_VER_OFFSET] & IP_VER_MASK) >> IP_VER_SHIFT)
+
+#define IP_PROT_ICMP		0x1	/* ICMP protocol */
+#define IP_PROT_TCP		0x6	/* TCP protocol */
+#define IP_PROT_UDP		0x11	/* UDP protocol type */
+
+/* IPV4 field offsets */
+#define IPV4_VER_HL_OFFSET	0	/* version and ihl byte offset */
+#define IPV4_TOS_OFFSET		1	/* type of service offset */
+#define IPV4_PROT_OFFSET	9	/* protocol type offset */
+#define IPV4_CHKSUM_OFFSET	10	/* IP header checksum offset */
+#define IPV4_SRC_IP_OFFSET	12	/* src IP addr offset */
+#define IPV4_DEST_IP_OFFSET	16	/* dest IP addr offset */
+
+/* IPV4 field decodes */
+#define IPV4_VER_MASK		0xf0	/* IPV4 version mask */
+#define IPV4_VER_SHIFT		4	/* IPV4 version shift */
+
+#define IPV4_HLEN_MASK		0x0f	/* IPV4 header length mask */
+#define IPV4_HLEN(ipv4_body)	(4 * (((uint8 *)(ipv4_body))[IPV4_VER_HL_OFFSET] & IPV4_HLEN_MASK))
+
+#define IPV4_ADDR_LEN		4	/* IPV4 address length */
+
+#define IPV4_ADDR_NULL(a)	((((uint8 *)(a))[0] | ((uint8 *)(a))[1] | \
+				  ((uint8 *)(a))[2] | ((uint8 *)(a))[3]) == 0)
+
+#define	IPV4_TOS_DSCP_MASK	0xfc	/* DiffServ codepoint mask */
+#define	IPV4_TOS_DSCP_SHIFT	2	/* DiffServ codepoint shift */
+
+#define	IPV4_TOS(ipv4_body)	(((uint8 *)(ipv4_body))[IPV4_TOS_OFFSET])
+
+#define	IPV4_TOS_PREC_MASK	0xe0	/* Historical precedence mask */
+#define	IPV4_TOS_PREC_SHIFT	5	/* Historical precedence shift */
+
+#define IPV4_TOS_LOWDELAY	0x10	/* Lowest delay requested */
+#define IPV4_TOS_THROUGHPUT	0x8	/* Best throughput requested */
+#define IPV4_TOS_RELIABILITY	0x4	/* Most reliable delivery requested */
+
+#define IPV4_PROT(ipv4_body)	(((uint8 *)(ipv4_body))[IPV4_PROT_OFFSET])
+
+#define IPV4_ADDR_STR_LEN	16	/* Max IP address length in string format */
+
+/* IPV6 field offsets */
+#define IPV6_PAYLOAD_LEN_OFFSET	4	/* payload length offset */
+#define IPV6_NEXT_HDR_OFFSET	6	/* next header/protocol offset */
+#define IPV6_HOP_LIMIT_OFFSET	7	/* hop limit offset */
+#define IPV6_SRC_IP_OFFSET	8	/* src IP addr offset */
+#define IPV6_DEST_IP_OFFSET	24	/* dst IP addr offset */
+
+/* IPV6 field decodes */
+#define IPV6_TRAFFIC_CLASS(ipv6_body) \
+	(((((uint8 *)(ipv6_body))[0] & 0x0f) << 4) | \
+	 ((((uint8 *)(ipv6_body))[1] & 0xf0) >> 4))
+
+#define IPV6_FLOW_LABEL(ipv6_body) \
+	(((((uint8 *)(ipv6_body))[1] & 0x0f) << 16) | \
+	 (((uint8 *)(ipv6_body))[2] << 8) | \
+	 (((uint8 *)(ipv6_body))[3]))
+
+#define IPV6_PAYLOAD_LEN(ipv6_body) \
+	((((uint8 *)(ipv6_body))[IPV6_PAYLOAD_LEN_OFFSET + 0] << 8) | \
+	 ((uint8 *)(ipv6_body))[IPV6_PAYLOAD_LEN_OFFSET + 1])
+
+#define IPV6_NEXT_HDR(ipv6_body) \
+	(((uint8 *)(ipv6_body))[IPV6_NEXT_HDR_OFFSET])
+
+#define IPV6_PROT(ipv6_body)	IPV6_NEXT_HDR(ipv6_body)
+
+#define IPV6_ADDR_LEN		16	/* IPV6 address length */
+
+/* IPV4 TOS or IPV6 Traffic Classifier or 0 */
+#define IP_TOS(ip_body) \
+	(IP_VER(ip_body) == IP_VER_4 ? IPV4_TOS(ip_body) : \
+	 IP_VER(ip_body) == IP_VER_6 ? IPV6_TRAFFIC_CLASS(ip_body) : 0)
+
+#endif	/* _bcmip_h_ */
diff --git a/package/broadcom-wl/src/driver/bcmutils.c b/package/broadcom-wl/src/driver/bcmutils.c
new file mode 100644
index 0000000000..7592f230ad
--- /dev/null
+++ b/package/broadcom-wl/src/driver/bcmutils.c
@@ -0,0 +1,873 @@
+/*
+ * Misc useful OS-independent routines.
+ *
+ * Copyright 2006, Broadcom Corporation
+ * All Rights Reserved.
+ * 
+ * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
+ * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
+ * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
+ * $Id: bcmutils.c,v 1.1.1.12 2006/02/27 03:43:16 honor Exp $
+ */
+
+#include <typedefs.h>
+#include <bcmdefs.h>
+#include <stdarg.h>
+#include <osl.h>
+#include "linux_osl.h"
+#include "pktq.h"
+#include <bcmutils.h>
+#include <sbutils.h>
+#include <bcmnvram.h>
+#include <bcmendian.h>
+#include <bcmdevs.h>
+#include "bcmip.h"
+
+#define ETHER_TYPE_8021Q       0x8100
+#define ETHER_TYPE_IP          0x0800
+#define VLAN_PRI_SHIFT             13
+#define VLAN_PRI_MASK               7
+
+
+struct  ether_header {
+	uint8   ether_dhost[6];
+	uint8   ether_shost[6];
+	uint16  ether_type;
+} __attribute__((packed));
+
+
+struct ethervlan_header {
+	uint8   ether_dhost[6];
+	uint8   ether_shost[6];
+	uint16  vlan_type;		/* 0x8100 */
+	uint16  vlan_tag;		/* priority, cfi and vid */
+	uint16  ether_type;
+};
+
+/* copy a pkt buffer chain into a buffer */
+uint
+pktcopy(osl_t *osh, void *p, uint offset, int len, uchar *buf)
+{
+	uint n, ret = 0;
+
+	if (len < 0)
+		len = 4096;	/* "infinite" */
+
+	/* skip 'offset' bytes */
+	for (; p && offset; p = PKTNEXT(osh, p)) {
+		if (offset < (uint)PKTLEN(osh, p))
+			break;
+		offset -= PKTLEN(osh, p);
+	}
+
+	if (!p)
+		return 0;
+
+	/* copy the data */
+	for (; p && len; p = PKTNEXT(osh, p)) {
+		n = MIN((uint)PKTLEN(osh, p) - offset, (uint)len);
+		bcopy(PKTDATA(osh, p) + offset, buf, n);
+		buf += n;
+		len -= n;
+		ret += n;
+		offset = 0;
+	}
+
+	return ret;
+}
+
+/* return total length of buffer chain */
+uint
+pkttotlen(osl_t *osh, void *p)
+{
+	uint total;
+
+	total = 0;
+	for (; p; p = PKTNEXT(osh, p))
+		total += PKTLEN(osh, p);
+	return (total);
+}
+
+/* return the last buffer of chained pkt */
+void *
+pktlast(osl_t *osh, void *p)
+{
+	for (; PKTNEXT(osh, p); p = PKTNEXT(osh, p))
+		;
+
+	return (p);
+}
+
+
+/*
+ * osl multiple-precedence packet queue
+ * hi_prec is always >= the number of the highest non-empty queue
+ */
+void *
+pktq_penq(struct pktq *pq, int prec, void *p)
+{
+	struct pktq_prec *q;
+
+	ASSERT(prec >= 0 && prec < pq->num_prec);
+	ASSERT(PKTLINK(p) == NULL);         /* queueing chains not allowed */
+
+	ASSERT(!pktq_full(pq));
+	ASSERT(!pktq_pfull(pq, prec));
+
+	q = &pq->q[prec];
+
+	if (q->head)
+		PKTSETLINK(q->tail, p);
+	else
+		q->head = p;
+
+	q->tail = p;
+	q->len++;
+
+	pq->len++;
+
+	if (pq->hi_prec < prec)
+		pq->hi_prec = (uint8)prec;
+
+	return p;
+}
+
+void *
+pktq_penq_head(struct pktq *pq, int prec, void *p)
+{
+	struct pktq_prec *q;
+
+	ASSERT(prec >= 0 && prec < pq->num_prec);
+	ASSERT(PKTLINK(p) == NULL);         /* queueing chains not allowed */
+
+	ASSERT(!pktq_full(pq));
+	ASSERT(!pktq_pfull(pq, prec));
+
+	q = &pq->q[prec];
+
+	if (q->head == NULL)
+		q->tail = p;
+
+	PKTSETLINK(p, q->head);
+	q->head = p;
+	q->len++;
+
+	pq->len++;
+
+	if (pq->hi_prec < prec)
+		pq->hi_prec = (uint8)prec;
+
+	return p;
+}
+
+void *
+pktq_pdeq(struct pktq *pq, int prec)
+{
+	struct pktq_prec *q;
+	void *p;
+
+	ASSERT(prec >= 0 && prec < pq->num_prec);
+
+	q = &pq->q[prec];
+
+	if ((p = q->head) == NULL)
+		return NULL;
+
+	if ((q->head = PKTLINK(p)) == NULL)
+		q->tail = NULL;
+
+	q->len--;
+
+	pq->len--;
+
+	PKTSETLINK(p, NULL);
+
+	return p;
+}
+
+void *
+pktq_pdeq_tail(struct pktq *pq, int prec)
+{
+	struct pktq_prec *q;
+	void *p, *prev;
+
+	ASSERT(prec >= 0 && prec < pq->num_prec);
+
+	q = &pq->q[prec];
+
+	if ((p = q->head) == NULL)
+		return NULL;
+
+	for (prev = NULL; p != q->tail; p = PKTLINK(p))
+		prev = p;
+
+	if (prev)
+		PKTSETLINK(prev, NULL);
+	else
+		q->head = NULL;
+
+	q->tail = prev;
+	q->len--;
+
+	pq->len--;
+
+	return p;
+}
+
+void
+pktq_pflush(osl_t *osh, struct pktq *pq, int prec, bool dir)
+{
+	struct pktq_prec *q;
+	void *p;
+
+	q = &pq->q[prec];
+	p = q->head;
+	while (p) {
+		q->head = PKTLINK(p);
+		PKTSETLINK(p, NULL);
+		PKTFREE(osh, p, dir);
+		q->len--;
+		pq->len--;
+		p = q->head;
+	}
+	ASSERT(q->len == 0);
+	q->tail = NULL;
+}
+
+bool
+pktq_pdel(struct pktq *pq, void *pktbuf, int prec)
+{
+	struct pktq_prec *q;
+	void *p;
+
+	ASSERT(prec >= 0 && prec < pq->num_prec);
+
+	if (!pktbuf)
+		return FALSE;
+
+	q = &pq->q[prec];
+
+	if (q->head == pktbuf) {
+		if ((q->head = PKTLINK(pktbuf)) == NULL)
+			q->tail = NULL;
+	} else {
+		for (p = q->head; p && PKTLINK(p) != pktbuf; p = PKTLINK(p))
+			;
+		if (p == NULL)
+			return FALSE;
+
+		PKTSETLINK(p, PKTLINK(pktbuf));
+		if (q->tail == pktbuf)
+			q->tail = p;
+	}
+
+	q->len--;
+	pq->len--;
+	PKTSETLINK(pktbuf, NULL);
+	return TRUE;
+}
+
+void
+pktq_init(struct pktq *pq, int num_prec, int max_len)
+{
+	int prec;
+
+	ASSERT(num_prec > 0 && num_prec <= PKTQ_MAX_PREC);
+
+	bzero(pq, sizeof(*pq));
+
+	pq->num_prec = (uint16)num_prec;
+
+	pq->max = (uint16)max_len;
+
+	for (prec = 0; prec < num_prec; prec++)
+		pq->q[prec].max = pq->max;
+}
+
+void *
+pktq_deq(struct pktq *pq, int *prec_out)
+{
+	struct pktq_prec *q;
+	void *p;
+	int prec;
+
+	if (pq->len == 0)
+		return NULL;
+
+	while ((prec = pq->hi_prec) > 0 && pq->q[prec].head == NULL)
+		pq->hi_prec--;
+
+	q = &pq->q[prec];
+
+	if ((p = q->head) == NULL)
+		return NULL;
+
+	if ((q->head = PKTLINK(p)) == NULL)
+		q->tail = NULL;
+
+	q->len--;
+
+	pq->len--;
+
+	if (prec_out)
+		*prec_out = prec;
+
+	PKTSETLINK(p, NULL);
+
+	return p;
+}
+
+void *
+pktq_deq_tail(struct pktq *pq, int *prec_out)
+{
+	struct pktq_prec *q;
+	void *p, *prev;
+	int prec;
+
+	if (pq->len == 0)
+		return NULL;
+
+	for (prec = 0; prec < pq->hi_prec; prec++)
+		if (pq->q[prec].head)
+			break;
+
+	q = &pq->q[prec];
+
+	if ((p = q->head) == NULL)
+		return NULL;
+
+	for (prev = NULL; p != q->tail; p = PKTLINK(p))
+		prev = p;
+
+	if (prev)
+		PKTSETLINK(prev, NULL);
+	else
+		q->head = NULL;
+
+	q->tail = prev;
+	q->len--;
+
+	pq->len--;
+
+	if (prec_out)
+		*prec_out = prec;
+
+	PKTSETLINK(p, NULL);
+
+	return p;
+}
+
+void *
+pktq_peek(struct pktq *pq, int *prec_out)
+{
+	int prec;
+
+	if (pq->len == 0)
+		return NULL;
+
+	while ((prec = pq->hi_prec) > 0 && pq->q[prec].head == NULL)
+		pq->hi_prec--;
+
+	if (prec_out)
+		*prec_out = prec;
+
+	return (pq->q[prec].head);
+}
+
+void *
+pktq_peek_tail(struct pktq *pq, int *prec_out)
+{
+	int prec;
+
+	if (pq->len == 0)
+		return NULL;
+
+	for (prec = 0; prec < pq->hi_prec; prec++)
+		if (pq->q[prec].head)
+			break;
+
+	if (prec_out)
+		*prec_out = prec;
+
+	return (pq->q[prec].tail);
+}
+
+void
+pktq_flush(osl_t *osh, struct pktq *pq, bool dir)
+{
+	int prec;
+	for (prec = 0; prec < pq->num_prec; prec++)
+		pktq_pflush(osh, pq, prec, dir);
+	ASSERT(pq->len == 0);
+}
+
+/* Return sum of lengths of a specific set of precedences */
+int
+pktq_mlen(struct pktq *pq, uint prec_bmp)
+{
+	int prec, len;
+
+	len = 0;
+
+	for (prec = 0; prec <= pq->hi_prec; prec++)
+		if (prec_bmp & (1 << prec))
+			len += pq->q[prec].len;
+
+	return len;
+}
+
+/* Priority dequeue from a specific set of precedences */
+void *
+pktq_mdeq(struct pktq *pq, uint prec_bmp, int *prec_out)
+{
+	struct pktq_prec *q;
+	void *p;
+	int prec;
+
+	if (pq->len == 0)
+		return NULL;
+
+	while ((prec = pq->hi_prec) > 0 && pq->q[prec].head == NULL)
+		pq->hi_prec--;
+
+	while ((prec_bmp & (1 << prec)) == 0 || pq->q[prec].head == NULL)
+		if (prec-- == 0)
+			return NULL;
+
+	q = &pq->q[prec];
+
+	if ((p = q->head) == NULL)
+		return NULL;
+
+	if ((q->head = PKTLINK(p)) == NULL)
+		q->tail = NULL;
+
+	q->len--;
+
+	if (prec_out)
+		*prec_out = prec;
+
+	pq->len--;
+
+	PKTSETLINK(p, NULL);
+
+	return p;
+}
+
+char*
+bcmstrcat(char *dest, const char *src)
+{
+	strcpy(&dest[strlen(dest)], src);
+	return (dest);
+}
+
+char*
+bcm_ether_ntoa(struct ether_addr *ea, char *buf)
+{
+	sprintf(buf, "%02x:%02x:%02x:%02x:%02x:%02x",
+		ea->octet[0]&0xff, ea->octet[1]&0xff, ea->octet[2]&0xff,
+		ea->octet[3]&0xff, ea->octet[4]&0xff, ea->octet[5]&0xff);
+	return (buf);
+}
+
+/* parse a xx:xx:xx:xx:xx:xx format ethernet address */
+int
+bcm_ether_atoe(char *p, struct ether_addr *ea)
+{
+	int i = 0;
+
+	for (;;) {
+		ea->octet[i++] = (char) bcm_strtoul(p, &p, 16);
+		if (!*p++ || i == 6)
+			break;
+	}
+
+	return (i == 6);
+}
+
+/* Takes an Ethernet frame and sets out-of-bound PKTPRIO
+ * Also updates the inplace vlan tag if requested
+ */
+void
+pktsetprio(void *pkt, bool update_vtag)
+{
+	struct ether_header *eh;
+	struct ethervlan_header *evh;
+	uint8 *pktdata;
+	int priority = 0;
+
+	pktdata = (uint8 *) PKTDATA(NULL, pkt);
+	ASSERT(ISALIGNED((uintptr)pktdata, sizeof(uint16)));
+
+	eh = (struct ether_header *) pktdata;
+
+	if (ntoh16(eh->ether_type) == ETHER_TYPE_8021Q) {
+		uint16 vlan_tag;
+		int vlan_prio, dscp_prio = 0;
+
+		evh = (struct ethervlan_header *)eh;
+
+		vlan_tag = ntoh16(evh->vlan_tag);
+		vlan_prio = (int) (vlan_tag >> VLAN_PRI_SHIFT) & VLAN_PRI_MASK;
+
+		if (ntoh16(evh->ether_type) == ETHER_TYPE_IP) {
+			uint8 *ip_body = pktdata + sizeof(struct ethervlan_header);
+			uint8 tos_tc = IP_TOS(ip_body);
+			dscp_prio = (int)(tos_tc >> IPV4_TOS_PREC_SHIFT);
+		}
+
+		/* DSCP priority gets precedence over 802.1P (vlan tag) */
+		priority = (dscp_prio != 0) ? dscp_prio : vlan_prio;
+
+		/* 
+		 * If the DSCP priority is not the same as the VLAN priority,
+		 * then overwrite the priority field in the vlan tag, with the
+		 * DSCP priority value. This is required for Linux APs because
+		 * the VLAN driver on Linux, overwrites the skb->priority field
+		 * with the priority value in the vlan tag
+		 */
+		if (update_vtag && (priority != vlan_prio)) {
+			vlan_tag &= ~(VLAN_PRI_MASK << VLAN_PRI_SHIFT);
+			vlan_tag |= (uint16)priority << VLAN_PRI_SHIFT;
+			evh->vlan_tag = hton16(vlan_tag);
+		}
+	} else if (ntoh16(eh->ether_type) == ETHER_TYPE_IP) {
+		uint8 *ip_body = pktdata + sizeof(struct ether_header);
+		uint8 tos_tc = IP_TOS(ip_body);
+		priority = (int)(tos_tc >> IPV4_TOS_PREC_SHIFT);
+	}
+
+	ASSERT(priority >= 0 && priority <= MAXPRIO);
+	PKTSETPRIO(pkt, priority);
+}
+
+static char bcm_undeferrstr[BCME_STRLEN];
+
+static const char *bcmerrorstrtable[] = BCMERRSTRINGTABLE;
+
+/* Convert the Error codes into related Error strings  */
+const char *
+bcmerrorstr(int bcmerror)
+{
+	int abs_bcmerror;
+
+	abs_bcmerror = ABS(bcmerror);
+
+	/* check if someone added a bcmerror code but forgot to add errorstring */
+	ASSERT(ABS(BCME_LAST) == (ARRAYSIZE(bcmerrorstrtable) - 1));
+	if ((bcmerror > 0) || (abs_bcmerror > ABS(BCME_LAST))) {
+		sprintf(bcm_undeferrstr, "undefined Error %d", bcmerror);
+		return bcm_undeferrstr;
+	}
+
+	ASSERT((strlen((char*)bcmerrorstrtable[abs_bcmerror])) < BCME_STRLEN);
+
+	return bcmerrorstrtable[abs_bcmerror];
+}
+
+
+int
+bcm_iovar_lencheck(const bcm_iovar_t *vi, void *arg, int len, bool set)
+{
+	int bcmerror = 0;
+
+	/* length check on io buf */
+	switch (vi->type) {
+	case IOVT_BOOL:
+	case IOVT_INT8:
+	case IOVT_INT16:
+	case IOVT_INT32:
+	case IOVT_UINT8:
+	case IOVT_UINT16:
+	case IOVT_UINT32:
+		/* all integers are int32 sized args at the ioctl interface */
+		if (len < (int)sizeof(int)) {
+			bcmerror = BCME_BUFTOOSHORT;
+		}
+		break;
+
+	case IOVT_BUFFER:
+		/* buffer must meet minimum length requirement */
+		if (len < vi->minlen) {
+			bcmerror = BCME_BUFTOOSHORT;
+		}
+		break;
+
+	case IOVT_VOID:
+		if (!set) {
+			/* Cannot return nil... */
+			bcmerror = BCME_UNSUPPORTED;
+		} else if (len) {
+			/* Set is an action w/o parameters */
+			bcmerror = BCME_BUFTOOLONG;
+		}
+		break;
+
+	default:
+		/* unknown type for length check in iovar info */
+		ASSERT(0);
+		bcmerror = BCME_UNSUPPORTED;
+	}
+
+	return bcmerror;
+}
+
+#define CRC_INNER_LOOP(n, c, x) \
+		    (c) = ((c) >> 8) ^ crc##n##_table[((c) ^ (x)) & 0xff]
+
+static uint32 crc32_table[256] = {
+    0x00000000, 0x77073096, 0xEE0E612C, 0x990951BA,
+    0x076DC419, 0x706AF48F, 0xE963A535, 0x9E6495A3,
+    0x0EDB8832, 0x79DCB8A4, 0xE0D5E91E, 0x97D2D988,
+    0x09B64C2B, 0x7EB17CBD, 0xE7B82D07, 0x90BF1D91,
+    0x1DB71064, 0x6AB020F2, 0xF3B97148, 0x84BE41DE,
+    0x1ADAD47D, 0x6DDDE4EB, 0xF4D4B551, 0x83D385C7,
+    0x136C9856, 0x646BA8C0, 0xFD62F97A, 0x8A65C9EC,
+    0x14015C4F, 0x63066CD9, 0xFA0F3D63, 0x8D080DF5,
+    0x3B6E20C8, 0x4C69105E, 0xD56041E4, 0xA2677172,
+    0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B,
+    0x35B5A8FA, 0x42B2986C, 0xDBBBC9D6, 0xACBCF940,
+    0x32D86CE3, 0x45DF5C75, 0xDCD60DCF, 0xABD13D59,
+    0x26D930AC, 0x51DE003A, 0xC8D75180, 0xBFD06116,
+    0x21B4F4B5, 0x56B3C423, 0xCFBA9599, 0xB8BDA50F,
+    0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924,
+    0x2F6F7C87, 0x58684C11, 0xC1611DAB, 0xB6662D3D,
+    0x76DC4190, 0x01DB7106, 0x98D220BC, 0xEFD5102A,
+    0x71B18589, 0x06B6B51F, 0x9FBFE4A5, 0xE8B8D433,
+    0x7807C9A2, 0x0F00F934, 0x9609A88E, 0xE10E9818,
+    0x7F6A0DBB, 0x086D3D2D, 0x91646C97, 0xE6635C01,
+    0x6B6B51F4, 0x1C6C6162, 0x856530D8, 0xF262004E,
+    0x6C0695ED, 0x1B01A57B, 0x8208F4C1, 0xF50FC457,
+    0x65B0D9C6, 0x12B7E950, 0x8BBEB8EA, 0xFCB9887C,
+    0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3, 0xFBD44C65,
+    0x4DB26158, 0x3AB551CE, 0xA3BC0074, 0xD4BB30E2,
+    0x4ADFA541, 0x3DD895D7, 0xA4D1C46D, 0xD3D6F4FB,
+    0x4369E96A, 0x346ED9FC, 0xAD678846, 0xDA60B8D0,
+    0x44042D73, 0x33031DE5, 0xAA0A4C5F, 0xDD0D7CC9,
+    0x5005713C, 0x270241AA, 0xBE0B1010, 0xC90C2086,
+    0x5768B525, 0x206F85B3, 0xB966D409, 0xCE61E49F,
+    0x5EDEF90E, 0x29D9C998, 0xB0D09822, 0xC7D7A8B4,
+    0x59B33D17, 0x2EB40D81, 0xB7BD5C3B, 0xC0BA6CAD,
+    0xEDB88320, 0x9ABFB3B6, 0x03B6E20C, 0x74B1D29A,
+    0xEAD54739, 0x9DD277AF, 0x04DB2615, 0x73DC1683,
+    0xE3630B12, 0x94643B84, 0x0D6D6A3E, 0x7A6A5AA8,
+    0xE40ECF0B, 0x9309FF9D, 0x0A00AE27, 0x7D079EB1,
+    0xF00F9344, 0x8708A3D2, 0x1E01F268, 0x6906C2FE,
+    0xF762575D, 0x806567CB, 0x196C3671, 0x6E6B06E7,
+    0xFED41B76, 0x89D32BE0, 0x10DA7A5A, 0x67DD4ACC,
+    0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5,
+    0xD6D6A3E8, 0xA1D1937E, 0x38D8C2C4, 0x4FDFF252,
+    0xD1BB67F1, 0xA6BC5767, 0x3FB506DD, 0x48B2364B,
+    0xD80D2BDA, 0xAF0A1B4C, 0x36034AF6, 0x41047A60,
+    0xDF60EFC3, 0xA867DF55, 0x316E8EEF, 0x4669BE79,
+    0xCB61B38C, 0xBC66831A, 0x256FD2A0, 0x5268E236,
+    0xCC0C7795, 0xBB0B4703, 0x220216B9, 0x5505262F,
+    0xC5BA3BBE, 0xB2BD0B28, 0x2BB45A92, 0x5CB36A04,
+    0xC2D7FFA7, 0xB5D0CF31, 0x2CD99E8B, 0x5BDEAE1D,
+    0x9B64C2B0, 0xEC63F226, 0x756AA39C, 0x026D930A,
+    0x9C0906A9, 0xEB0E363F, 0x72076785, 0x05005713,
+    0x95BF4A82, 0xE2B87A14, 0x7BB12BAE, 0x0CB61B38,
+    0x92D28E9B, 0xE5D5BE0D, 0x7CDCEFB7, 0x0BDBDF21,
+    0x86D3D2D4, 0xF1D4E242, 0x68DDB3F8, 0x1FDA836E,
+    0x81BE16CD, 0xF6B9265B, 0x6FB077E1, 0x18B74777,
+    0x88085AE6, 0xFF0F6A70, 0x66063BCA, 0x11010B5C,
+    0x8F659EFF, 0xF862AE69, 0x616BFFD3, 0x166CCF45,
+    0xA00AE278, 0xD70DD2EE, 0x4E048354, 0x3903B3C2,
+    0xA7672661, 0xD06016F7, 0x4969474D, 0x3E6E77DB,
+    0xAED16A4A, 0xD9D65ADC, 0x40DF0B66, 0x37D83BF0,
+    0xA9BCAE53, 0xDEBB9EC5, 0x47B2CF7F, 0x30B5FFE9,
+    0xBDBDF21C, 0xCABAC28A, 0x53B39330, 0x24B4A3A6,
+    0xBAD03605, 0xCDD70693, 0x54DE5729, 0x23D967BF,
+    0xB3667A2E, 0xC4614AB8, 0x5D681B02, 0x2A6F2B94,
+    0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D
+};
+
+uint32
+hndcrc32(
+    uint8 *pdata,  /* pointer to array of data to process */
+    uint   nbytes, /* number of input data bytes to process */
+    uint32 crc     /* either CRC32_INIT_VALUE or previous return value */
+)
+{
+	uint8 *pend;
+#ifdef __mips__
+	uint8 tmp[4];
+	ulong *tptr = (ulong *)tmp;
+
+	/* in case the beginning of the buffer isn't aligned */
+	pend = (uint8 *)((uint)(pdata + 3) & 0xfffffffc);
+	nbytes -= (pend - pdata);
+	while (pdata < pend)
+		CRC_INNER_LOOP(32, crc, *pdata++);
+
+	/* handle bulk of data as 32-bit words */
+	pend = pdata + (nbytes & 0xfffffffc);
+	while (pdata < pend) {
+		*tptr = *(ulong *)pdata;
+		pdata += sizeof(ulong *);
+		CRC_INNER_LOOP(32, crc, tmp[0]);
+		CRC_INNER_LOOP(32, crc, tmp[1]);
+		CRC_INNER_LOOP(32, crc, tmp[2]);
+		CRC_INNER_LOOP(32, crc, tmp[3]);
+	}
+
+	/* 1-3 bytes at end of buffer */
+	pend = pdata + (nbytes & 0x03);
+	while (pdata < pend)
+		CRC_INNER_LOOP(32, crc, *pdata++);
+#else
+	pend = pdata + nbytes;
+	while (pdata < pend)
+		CRC_INNER_LOOP(32, crc, *pdata++);
+#endif /* __mips__ */
+
+	return crc;
+}
+
+
+/*
+ * Advance from the current 1-byte tag/1-byte length/variable-length value
+ * triple, to the next, returning a pointer to the next.
+ * If the current or next TLV is invalid (does not fit in given buffer length),
+ * NULL is returned.
+ * *buflen is not modified if the TLV elt parameter is invalid, or is decremented
+ * by the TLV paramter's length if it is valid.
+ */
+bcm_tlv_t *
+bcm_next_tlv(bcm_tlv_t *elt, int *buflen)
+{
+	int len;
+
+	/* validate current elt */
+	if (!bcm_valid_tlv(elt, *buflen))
+		return NULL;
+
+	/* advance to next elt */
+	len = elt->len;
+	elt = (bcm_tlv_t*)(elt->data + len);
+	*buflen -= (2 + len);
+
+	/* validate next elt */
+	if (!bcm_valid_tlv(elt, *buflen))
+		return NULL;
+
+	return elt;
+}
+
+/*
+ * Traverse a string of 1-byte tag/1-byte length/variable-length value
+ * triples, returning a pointer to the substring whose first element
+ * matches tag
+ */
+bcm_tlv_t *
+bcm_parse_tlvs(void *buf, int buflen, uint key)
+{
+	bcm_tlv_t *elt;
+	int totlen;
+
+	elt = (bcm_tlv_t*)buf;
+	totlen = buflen;
+
+	/* find tagged parameter */
+	while (totlen >= 2) {
+		int len = elt->len;
+
+		/* validate remaining totlen */
+		if ((elt->id == key) && (totlen >= (len + 2)))
+			return (elt);
+
+		elt = (bcm_tlv_t*)((uint8*)elt + (len + 2));
+		totlen -= (len + 2);
+	}
+
+	return NULL;
+}
+
+/*
+ * Traverse a string of 1-byte tag/1-byte length/variable-length value
+ * triples, returning a pointer to the substring whose first element
+ * matches tag.  Stop parsing when we see an element whose ID is greater
+ * than the target key.
+ */
+bcm_tlv_t *
+bcm_parse_ordered_tlvs(void *buf, int buflen, uint key)
+{
+	bcm_tlv_t *elt;
+	int totlen;
+
+	elt = (bcm_tlv_t*)buf;
+	totlen = buflen;
+
+	/* find tagged parameter */
+	while (totlen >= 2) {
+		uint id = elt->id;
+		int len = elt->len;
+
+		/* Punt if we start seeing IDs > than target key */
+		if (id > key)
+			return (NULL);
+
+		/* validate remaining totlen */
+		if ((id == key) && (totlen >= (len + 2)))
+			return (elt);
+
+		elt = (bcm_tlv_t*)((uint8*)elt + (len + 2));
+		totlen -= (len + 2);
+	}
+	return NULL;
+}
+
+
+/* Initialization of bcmstrbuf structure */
+void
+bcm_binit(struct bcmstrbuf *b, char *buf, uint size)
+{
+	b->origsize = b->size = size;
+	b->origbuf = b->buf = buf;
+}
+
+/* Buffer sprintf wrapper to guard against buffer overflow */
+int
+bcm_bprintf(struct bcmstrbuf *b, const char *fmt, ...)
+{
+	va_list ap;
+	int r;
+
+	va_start(ap, fmt);
+	r = vsnprintf(b->buf, b->size, fmt, ap);
+
+	/* Non Ansi C99 compliant returns -1,
+	 * Ansi compliant return r >= b->size,
+	 * bcmstdlib returns 0, handle all
+	 */
+	if ((r == -1) || (r >= (int)b->size) || (r == 0))
+	{
+		b->size = 0;
+	}
+	else
+	{
+		b->size -= r;
+		b->buf += r;
+	}
+
+	va_end(ap);
+
+	return r;
+}
+
+uint
+bcm_bitcount(uint8 *bitmap, uint length)
+{   
+	uint bitcount = 0, i;
+	uint8 tmp;
+	for (i = 0; i < length; i++) {
+		tmp = bitmap[i];
+		while (tmp) {
+			bitcount++;
+			tmp &= (tmp - 1);
+		}
+	}
+	return bitcount;
+}
+
diff --git a/package/broadcom-wl/src/driver/hnddma.c b/package/broadcom-wl/src/driver/hnddma.c
new file mode 100644
index 0000000000..1b79dff4c2
--- /dev/null
+++ b/package/broadcom-wl/src/driver/hnddma.c
@@ -0,0 +1,1893 @@
+/*
+ * Generic Broadcom Home Networking Division (HND) DMA module.
+ * This supports the following chips: BCM42xx, 44xx, 47xx .
+ *
+ * Copyright 2006, Broadcom Corporation
+ * All Rights Reserved.
+ * 
+ * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
+ * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
+ * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
+ *
+ * $Id: hnddma.c,v 1.11 2006/04/08 07:12:42 honor Exp $
+ */
+
+#include <typedefs.h>
+#include <bcmdefs.h>
+#include <osl.h>
+#include "linux_osl.h"
+#include <bcmendian.h>
+#include <sbconfig.h>
+#include <bcmutils.h>
+#include <bcmdevs.h>
+#include <sbutils.h>
+
+#include "sbhnddma.h"
+#include "hnddma.h"
+
+/* debug/trace */
+#define	DMA_ERROR(args)
+#define	DMA_TRACE(args)
+
+/* default dma message level (if input msg_level pointer is null in dma_attach()) */
+static uint dma_msg_level =
+	0;
+
+#define	MAXNAMEL	8		/* 8 char names */
+
+#define	DI_INFO(dmah)	(dma_info_t *)dmah
+
+/* dma engine software state */
+typedef struct dma_info {
+	struct hnddma_pub hnddma;	/* exported structure, don't use hnddma_t,
+					 * which could be const
+					 */
+	uint		*msg_level;	/* message level pointer */
+	char		name[MAXNAMEL];	/* callers name for diag msgs */
+
+	void		*osh;		/* os handle */
+	sb_t		*sbh;		/* sb handle */
+
+	bool		dma64;		/* dma64 enabled */
+	bool		addrext;	/* this dma engine supports DmaExtendedAddrChanges */
+
+	dma32regs_t	*d32txregs;	/* 32 bits dma tx engine registers */
+	dma32regs_t	*d32rxregs;	/* 32 bits dma rx engine registers */
+	dma64regs_t	*d64txregs;	/* 64 bits dma tx engine registers */
+	dma64regs_t	*d64rxregs;	/* 64 bits dma rx engine registers */
+
+	uint32		dma64align;	/* either 8k or 4k depends on number of dd */
+	dma32dd_t	*txd32;		/* pointer to dma32 tx descriptor ring */
+	dma64dd_t	*txd64;		/* pointer to dma64 tx descriptor ring */
+	uint		ntxd;		/* # tx descriptors tunable */
+	uint		txin;		/* index of next descriptor to reclaim */
+	uint		txout;		/* index of next descriptor to post */
+	void		**txp;		/* pointer to parallel array of pointers to packets */
+	osldma_t 	*tx_dmah;	/* DMA TX descriptor ring handle */
+	osldma_t	**txp_dmah;	/* DMA TX packet data handle */
+	ulong		txdpa;		/* physical address of descriptor ring */
+	uint		txdalign;	/* #bytes added to alloc'd mem to align txd */
+	uint		txdalloc;	/* #bytes allocated for the ring */
+
+	dma32dd_t	*rxd32;		/* pointer to dma32 rx descriptor ring */
+	dma64dd_t	*rxd64;		/* pointer to dma64 rx descriptor ring */
+	uint		nrxd;		/* # rx descriptors tunable */
+	uint		rxin;		/* index of next descriptor to reclaim */
+	uint		rxout;		/* index of next descriptor to post */
+	void		**rxp;		/* pointer to parallel array of pointers to packets */
+	osldma_t 	*rx_dmah;	/* DMA RX descriptor ring handle */
+	osldma_t	**rxp_dmah;	/* DMA RX packet data handle */
+	ulong		rxdpa;		/* physical address of descriptor ring */
+	uint		rxdalign;	/* #bytes added to alloc'd mem to align rxd */
+	uint		rxdalloc;	/* #bytes allocated for the ring */
+
+	/* tunables */
+	uint		rxbufsize;	/* rx buffer size in bytes,
+					   not including the extra headroom
+					*/
+	uint		nrxpost;	/* # rx buffers to keep posted */
+	uint		rxoffset;	/* rxcontrol offset */
+	uint		ddoffsetlow;	/* add to get dma address of descriptor ring, low 32 bits */
+	uint		ddoffsethigh;	/*   high 32 bits */
+	uint		dataoffsetlow;	/* add to get dma address of data buffer, low 32 bits */
+	uint		dataoffsethigh;	/*   high 32 bits */
+} dma_info_t;
+
+#ifdef BCMDMA64
+#define	DMA64_ENAB(di)	((di)->dma64)
+#define DMA64_CAP	TRUE
+#else
+#define	DMA64_ENAB(di)	(0)
+#define DMA64_CAP	FALSE
+#endif
+
+/* descriptor bumping macros */
+#define	XXD(x, n)	((x) & ((n) - 1))	/* faster than %, but n must be power of 2 */
+#define	TXD(x)		XXD((x), di->ntxd)
+#define	RXD(x)		XXD((x), di->nrxd)
+#define	NEXTTXD(i)	TXD(i + 1)
+#define	PREVTXD(i)	TXD(i - 1)
+#define	NEXTRXD(i)	RXD(i + 1)
+#define	NTXDACTIVE(h, t)	TXD(t - h)
+#define	NRXDACTIVE(h, t)	RXD(t - h)
+
+/* macros to convert between byte offsets and indexes */
+#define	B2I(bytes, type)	((bytes) / sizeof(type))
+#define	I2B(index, type)	((index) * sizeof(type))
+
+#define	PCI32ADDR_HIGH		0xc0000000	/* address[31:30] */
+#define	PCI32ADDR_HIGH_SHIFT	30		/* address[31:30] */
+
+
+/* common prototypes */
+static bool _dma_isaddrext(dma_info_t *di);
+static bool _dma_alloc(dma_info_t *di, uint direction);
+static void _dma_detach(dma_info_t *di);
+static void _dma_ddtable_init(dma_info_t *di, uint direction, ulong pa);
+static void _dma_rxinit(dma_info_t *di);
+static void *_dma_rx(dma_info_t *di);
+static void _dma_rxfill(dma_info_t *di);
+static void _dma_rxreclaim(dma_info_t *di);
+static void _dma_rxenable(dma_info_t *di);
+static void * _dma_getnextrxp(dma_info_t *di, bool forceall);
+
+static void _dma_txblock(dma_info_t *di);
+static void _dma_txunblock(dma_info_t *di);
+static uint _dma_txactive(dma_info_t *di);
+
+static void* _dma_peeknexttxp(dma_info_t *di);
+static uintptr _dma_getvar(dma_info_t *di, const char *name);
+static void _dma_counterreset(dma_info_t *di);
+static void _dma_fifoloopbackenable(dma_info_t *di);
+
+/* ** 32 bit DMA prototypes */
+static bool dma32_alloc(dma_info_t *di, uint direction);
+static bool dma32_txreset(dma_info_t *di);
+static bool dma32_rxreset(dma_info_t *di);
+static bool dma32_txsuspendedidle(dma_info_t *di);
+static int  dma32_txfast(dma_info_t *di, void *p0, bool commit);
+static void *dma32_getnexttxp(dma_info_t *di, bool forceall);
+static void *dma32_getnextrxp(dma_info_t *di, bool forceall);
+static void dma32_txrotate(dma_info_t *di);
+static bool dma32_rxidle(dma_info_t *di);
+static void dma32_txinit(dma_info_t *di);
+static bool dma32_txenabled(dma_info_t *di);
+static void dma32_txsuspend(dma_info_t *di);
+static void dma32_txresume(dma_info_t *di);
+static bool dma32_txsuspended(dma_info_t *di);
+static void dma32_txreclaim(dma_info_t *di, bool forceall);
+static bool dma32_txstopped(dma_info_t *di);
+static bool dma32_rxstopped(dma_info_t *di);
+static bool dma32_rxenabled(dma_info_t *di);
+static bool _dma32_addrext(osl_t *osh, dma32regs_t *dma32regs);
+
+/* ** 64 bit DMA prototypes and stubs */
+#ifdef BCMDMA64
+static bool dma64_alloc(dma_info_t *di, uint direction);
+static bool dma64_txreset(dma_info_t *di);
+static bool dma64_rxreset(dma_info_t *di);
+static bool dma64_txsuspendedidle(dma_info_t *di);
+static int  dma64_txfast(dma_info_t *di, void *p0, bool commit);
+static void *dma64_getnexttxp(dma_info_t *di, bool forceall);
+static void *dma64_getnextrxp(dma_info_t *di, bool forceall);
+static void dma64_txrotate(dma_info_t *di);
+
+static bool dma64_rxidle(dma_info_t *di);
+static void dma64_txinit(dma_info_t *di);
+static bool dma64_txenabled(dma_info_t *di);
+static void dma64_txsuspend(dma_info_t *di);
+static void dma64_txresume(dma_info_t *di);
+static bool dma64_txsuspended(dma_info_t *di);
+static void dma64_txreclaim(dma_info_t *di, bool forceall);
+static bool dma64_txstopped(dma_info_t *di);
+static bool dma64_rxstopped(dma_info_t *di);
+static bool dma64_rxenabled(dma_info_t *di);
+static bool _dma64_addrext(osl_t *osh, dma64regs_t *dma64regs);
+
+#else
+static bool dma64_alloc(dma_info_t *di, uint direction) { return FALSE; }
+static bool dma64_txreset(dma_info_t *di) { return FALSE; }
+static bool dma64_rxreset(dma_info_t *di) { return FALSE; }
+static bool dma64_txsuspendedidle(dma_info_t *di) { return FALSE;}
+static int  dma64_txfast(dma_info_t *di, void *p0, bool commit) { return 0; }
+static void *dma64_getnexttxp(dma_info_t *di, bool forceall) { return NULL; }
+static void *dma64_getnextrxp(dma_info_t *di, bool forceall) { return NULL; }
+static void dma64_txrotate(dma_info_t *di) { return; }
+
+static bool dma64_rxidle(dma_info_t *di) { return FALSE; }
+static void dma64_txinit(dma_info_t *di) { return; }
+static bool dma64_txenabled(dma_info_t *di) { return FALSE; }
+static void dma64_txsuspend(dma_info_t *di) { return; }
+static void dma64_txresume(dma_info_t *di) { return; }
+static bool dma64_txsuspended(dma_info_t *di) {return FALSE; }
+static void dma64_txreclaim(dma_info_t *di, bool forceall) { return; }
+static bool dma64_txstopped(dma_info_t *di) { return FALSE; }
+static bool dma64_rxstopped(dma_info_t *di) { return FALSE; }
+static bool dma64_rxenabled(dma_info_t *di) { return FALSE; }
+static bool _dma64_addrext(osl_t *osh, dma64regs_t *dma64regs) { return FALSE; }
+
+#endif	/* BCMDMA64 */
+
+
+
+static di_fcn_t dma64proc = {
+	(di_detach_t)_dma_detach,
+	(di_txinit_t)dma64_txinit,
+	(di_txreset_t)dma64_txreset,
+	(di_txenabled_t)dma64_txenabled,
+	(di_txsuspend_t)dma64_txsuspend,
+	(di_txresume_t)dma64_txresume,
+	(di_txsuspended_t)dma64_txsuspended,
+	(di_txsuspendedidle_t)dma64_txsuspendedidle,
+	(di_txfast_t)dma64_txfast,
+	(di_txstopped_t)dma64_txstopped,
+	(di_txreclaim_t)dma64_txreclaim,
+	(di_getnexttxp_t)dma64_getnexttxp,
+	(di_peeknexttxp_t)_dma_peeknexttxp,
+	(di_txblock_t)_dma_txblock,
+	(di_txunblock_t)_dma_txunblock,
+	(di_txactive_t)_dma_txactive,
+	(di_txrotate_t)dma64_txrotate,
+
+	(di_rxinit_t)_dma_rxinit,
+	(di_rxreset_t)dma64_rxreset,
+	(di_rxidle_t)dma64_rxidle,
+	(di_rxstopped_t)dma64_rxstopped,
+	(di_rxenable_t)_dma_rxenable,
+	(di_rxenabled_t)dma64_rxenabled,
+	(di_rx_t)_dma_rx,
+	(di_rxfill_t)_dma_rxfill,
+	(di_rxreclaim_t)_dma_rxreclaim,
+	(di_getnextrxp_t)_dma_getnextrxp,
+
+	(di_fifoloopbackenable_t)_dma_fifoloopbackenable,
+	(di_getvar_t)_dma_getvar,
+	(di_counterreset_t)_dma_counterreset,
+
+	NULL,
+	NULL,
+	NULL,
+	34
+};
+
+static di_fcn_t dma32proc = {
+	(di_detach_t)_dma_detach,
+	(di_txinit_t)dma32_txinit,
+	(di_txreset_t)dma32_txreset,
+	(di_txenabled_t)dma32_txenabled,
+	(di_txsuspend_t)dma32_txsuspend,
+	(di_txresume_t)dma32_txresume,
+	(di_txsuspended_t)dma32_txsuspended,
+	(di_txsuspendedidle_t)dma32_txsuspendedidle,
+	(di_txfast_t)dma32_txfast,
+	(di_txstopped_t)dma32_txstopped,
+	(di_txreclaim_t)dma32_txreclaim,
+	(di_getnexttxp_t)dma32_getnexttxp,
+	(di_peeknexttxp_t)_dma_peeknexttxp,
+	(di_txblock_t)_dma_txblock,
+	(di_txunblock_t)_dma_txunblock,
+	(di_txactive_t)_dma_txactive,
+	(di_txrotate_t)dma32_txrotate,
+
+	(di_rxinit_t)_dma_rxinit,
+	(di_rxreset_t)dma32_rxreset,
+	(di_rxidle_t)dma32_rxidle,
+	(di_rxstopped_t)dma32_rxstopped,
+	(di_rxenable_t)_dma_rxenable,
+	(di_rxenabled_t)dma32_rxenabled,
+	(di_rx_t)_dma_rx,
+	(di_rxfill_t)_dma_rxfill,
+	(di_rxreclaim_t)_dma_rxreclaim,
+	(di_getnextrxp_t)_dma_getnextrxp,
+
+	(di_fifoloopbackenable_t)_dma_fifoloopbackenable,
+	(di_getvar_t)_dma_getvar,
+	(di_counterreset_t)_dma_counterreset,
+
+	NULL,
+	NULL,
+	NULL,
+	34
+};
+
+hnddma_t *
+dma_attach(osl_t *osh, char *name, sb_t *sbh, void *dmaregstx, void *dmaregsrx,
+           uint ntxd, uint nrxd, uint rxbufsize, uint nrxpost, uint rxoffset, uint *msg_level)
+{
+	dma_info_t *di;
+	uint size;
+
+	/* allocate private info structure */
+	if ((di = MALLOC(osh, sizeof (dma_info_t))) == NULL) {
+		return (NULL);
+	}
+	bzero((char *)di, sizeof(dma_info_t));
+
+	di->msg_level = msg_level ? msg_level : &dma_msg_level;
+
+	/* old chips w/o sb is no longer supported */
+	ASSERT(sbh != NULL);
+	
+	di->dma64 = ((sb_coreflagshi(sbh, 0, 0) & SBTMH_DMA64) == SBTMH_DMA64);
+
+#ifndef BCMDMA64
+	if (di->dma64) {
+		DMA_ERROR(("dma_attach: driver doesn't have the capability to support "
+		           "64 bits DMA\n"));
+		goto fail;
+	}
+#endif
+
+	/* check arguments */
+	ASSERT(ISPOWEROF2(ntxd));
+	ASSERT(ISPOWEROF2(nrxd));
+	if (nrxd == 0)
+		ASSERT(dmaregsrx == NULL);
+	if (ntxd == 0)
+		ASSERT(dmaregstx == NULL);
+
+
+	/* init dma reg pointer */
+	if (di->dma64) {
+		ASSERT(ntxd <= D64MAXDD);
+		ASSERT(nrxd <= D64MAXDD);
+		di->d64txregs = (dma64regs_t *)dmaregstx;
+		di->d64rxregs = (dma64regs_t *)dmaregsrx;
+
+		di->dma64align = D64RINGALIGN;
+		if ((ntxd < D64MAXDD / 2) && (nrxd < D64MAXDD / 2)) {
+			/* for smaller dd table, HW relax the alignment requirement */
+			di->dma64align = D64RINGALIGN / 2;
+		}
+	} else {
+		ASSERT(ntxd <= D32MAXDD);
+		ASSERT(nrxd <= D32MAXDD);
+		di->d32txregs = (dma32regs_t *)dmaregstx;
+		di->d32rxregs = (dma32regs_t *)dmaregsrx;
+	}
+
+	DMA_TRACE(("%s: dma_attach: %s osh %p ntxd %d nrxd %d rxbufsize %d nrxpost %d "
+	           "rxoffset %d dmaregstx %p dmaregsrx %p\n",
+	           name, (di->dma64 ? "DMA64" : "DMA32"), osh, ntxd, nrxd, rxbufsize,
+	           nrxpost, rxoffset, dmaregstx, dmaregsrx));
+
+	/* make a private copy of our callers name */
+	strncpy(di->name, name, MAXNAMEL);
+	di->name[MAXNAMEL-1] = '\0';
+
+	di->osh = osh;
+	di->sbh = sbh;
+
+	/* save tunables */
+	di->ntxd = ntxd;
+	di->nrxd = nrxd;
+
+	/* the actual dma size doesn't include the extra headroom */
+	if (rxbufsize > BCMEXTRAHDROOM)
+		di->rxbufsize = rxbufsize - BCMEXTRAHDROOM;
+	else
+		di->rxbufsize = rxbufsize;
+
+	di->nrxpost = nrxpost;
+	di->rxoffset = rxoffset;
+
+	/*
+	 * figure out the DMA physical address offset for dd and data
+	 *   for old chips w/o sb, use zero
+	 *   for new chips w sb,
+	 *     PCI/PCIE: they map silicon backplace address to zero based memory, need offset
+	 *     Other bus: use zero
+	 *     SB_BUS BIGENDIAN kludge: use sdram swapped region for data buffer, not descriptor
+	 */
+	di->ddoffsetlow = 0;
+	di->dataoffsetlow = 0;
+	/* for pci bus, add offset */
+	if (sbh->bustype == PCI_BUS) {
+		if ((sbh->buscoretype == SB_PCIE) && di->dma64) {
+			/* pcie with DMA64 */
+			di->ddoffsetlow = 0;
+			di->ddoffsethigh = SB_PCIE_DMA_H32;
+		} else {
+			/* pci(DMA32/DMA64) or pcie with DMA32 */
+			di->ddoffsetlow = SB_PCI_DMA;
+			di->ddoffsethigh = 0;
+		}
+		di->dataoffsetlow =  di->ddoffsetlow;
+		di->dataoffsethigh =  di->ddoffsethigh;
+	}
+
+#if defined(__mips__) && defined(IL_BIGENDIAN)
+	di->dataoffsetlow = di->dataoffsetlow + SB_SDRAM_SWAPPED;
+#endif
+
+	di->addrext = _dma_isaddrext(di);
+
+	/* allocate tx packet pointer vector */
+	if (ntxd) {
+		size = ntxd * sizeof(void *);
+		if ((di->txp = MALLOC(osh, size)) == NULL) {
+			DMA_ERROR(("%s: dma_attach: out of tx memory, malloced %d bytes\n",
+			           di->name, MALLOCED(osh)));
+			goto fail;
+		}
+		bzero((char *)di->txp, size);
+	}
+
+	/* allocate rx packet pointer vector */
+	if (nrxd) {
+		size = nrxd * sizeof(void *);
+		if ((di->rxp = MALLOC(osh, size)) == NULL) {
+			DMA_ERROR(("%s: dma_attach: out of rx memory, malloced %d bytes\n",
+			           di->name, MALLOCED(osh)));
+			goto fail;
+		}
+		bzero((char *)di->rxp, size);
+	}
+
+	/* allocate transmit descriptor ring, only need ntxd descriptors but it must be aligned */
+	if (ntxd) {
+		if (!_dma_alloc(di, DMA_TX))
+			goto fail;
+	}
+
+	/* allocate receive descriptor ring, only need nrxd descriptors but it must be aligned */
+	if (nrxd) {
+		if (!_dma_alloc(di, DMA_RX))
+			goto fail;
+	}
+
+	if ((di->ddoffsetlow == SB_PCI_DMA) && (di->txdpa > SB_PCI_DMA_SZ) && !di->addrext) {
+		DMA_ERROR(("%s: dma_attach: txdpa 0x%lx: addrext not supported\n",
+		           di->name, di->txdpa));
+		goto fail;
+	}
+	if ((di->ddoffsetlow == SB_PCI_DMA) && (di->rxdpa > SB_PCI_DMA_SZ) && !di->addrext) {
+		DMA_ERROR(("%s: dma_attach: rxdpa 0x%lx: addrext not supported\n",
+		           di->name, di->rxdpa));
+		goto fail;
+	}
+
+	DMA_TRACE(("ddoffsetlow 0x%x ddoffsethigh 0x%x dataoffsetlow 0x%x dataoffsethigh "
+	           "0x%x addrext %d\n", di->ddoffsetlow, di->ddoffsethigh, di->dataoffsetlow,
+	           di->dataoffsethigh, di->addrext));
+
+	/* allocate tx packet pointer vector and DMA mapping vectors */
+	if (ntxd) {
+
+		size = ntxd * sizeof(osldma_t **);
+		if ((di->txp_dmah = (osldma_t **)MALLOC(osh, size)) == NULL)
+			goto fail;
+		bzero((char*)di->txp_dmah, size);
+	}else
+		di->txp_dmah = NULL;
+
+	/* allocate rx packet pointer vector and DMA mapping vectors */
+	if (nrxd) {
+
+		size = nrxd * sizeof(osldma_t **);
+		if ((di->rxp_dmah = (osldma_t **)MALLOC(osh, size)) == NULL)
+			goto fail;
+		bzero((char*)di->rxp_dmah, size);
+
+	} else
+		di->rxp_dmah = NULL;
+
+	/* initialize opsvec of function pointers */
+	di->hnddma.di_fn = DMA64_ENAB(di) ? dma64proc : dma32proc;
+
+	return ((hnddma_t *)di);
+
+fail:
+	_dma_detach(di);
+	return (NULL);
+}
+
+/* init the tx or rx descriptor */
+static INLINE void
+dma32_dd_upd(dma_info_t *di, dma32dd_t *ddring, ulong pa, uint outidx, uint32 *flags,
+             uint32 bufcount)
+{
+	/* dma32 uses 32 bits control to fit both flags and bufcounter */
+	*flags = *flags | (bufcount & CTRL_BC_MASK);
+
+	if ((di->dataoffsetlow != SB_PCI_DMA) || !(pa & PCI32ADDR_HIGH)) {
+		W_SM(&ddring[outidx].addr, BUS_SWAP32(pa + di->dataoffsetlow));
+		W_SM(&ddring[outidx].ctrl, BUS_SWAP32(*flags));
+	} else {
+		/* address extension */
+		uint32 ae;
+		ASSERT(di->addrext);
+		ae = (pa & PCI32ADDR_HIGH) >> PCI32ADDR_HIGH_SHIFT;
+		pa &= ~PCI32ADDR_HIGH;
+
+		*flags |= (ae << CTRL_AE_SHIFT);
+		W_SM(&ddring[outidx].addr, BUS_SWAP32(pa + di->dataoffsetlow));
+		W_SM(&ddring[outidx].ctrl, BUS_SWAP32(*flags));
+	}
+}
+
+static INLINE void
+dma64_dd_upd(dma_info_t *di, dma64dd_t *ddring, ulong pa, uint outidx, uint32 *flags,
+             uint32 bufcount)
+{
+	uint32 ctrl2 = bufcount & D64_CTRL2_BC_MASK;
+
+	/* PCI bus with big(>1G) physical address, use address extension */
+	if ((di->dataoffsetlow != SB_PCI_DMA) || !(pa & PCI32ADDR_HIGH)) {
+		W_SM(&ddring[outidx].addrlow, BUS_SWAP32(pa + di->dataoffsetlow));
+		W_SM(&ddring[outidx].addrhigh, BUS_SWAP32(0 + di->dataoffsethigh));
+		W_SM(&ddring[outidx].ctrl1, BUS_SWAP32(*flags));
+		W_SM(&ddring[outidx].ctrl2, BUS_SWAP32(ctrl2));
+	} else {
+		/* address extension */
+		uint32 ae;
+		ASSERT(di->addrext);
+
+		ae = (pa & PCI32ADDR_HIGH) >> PCI32ADDR_HIGH_SHIFT;
+		pa &= ~PCI32ADDR_HIGH;
+
+		ctrl2 |= (ae << D64_CTRL2_AE_SHIFT) & D64_CTRL2_AE;
+		W_SM(&ddring[outidx].addrlow, BUS_SWAP32(pa + di->dataoffsetlow));
+		W_SM(&ddring[outidx].addrhigh, BUS_SWAP32(0 + di->dataoffsethigh));
+		W_SM(&ddring[outidx].ctrl1, BUS_SWAP32(*flags));
+		W_SM(&ddring[outidx].ctrl2, BUS_SWAP32(ctrl2));
+	}
+}
+
+static bool
+_dma32_addrext(osl_t *osh, dma32regs_t *dma32regs)
+{
+	uint32 w;
+
+	OR_REG(osh, &dma32regs->control, XC_AE);
+	w = R_REG(osh, &dma32regs->control);
+	AND_REG(osh, &dma32regs->control, ~XC_AE);
+	return ((w & XC_AE) == XC_AE);
+}
+
+static bool
+_dma_alloc(dma_info_t *di, uint direction)
+{
+	if (DMA64_ENAB(di)) {
+		return dma64_alloc(di, direction);
+	} else {
+		return dma32_alloc(di, direction);
+	}
+}
+
+/* !! may be called with core in reset */
+static void
+_dma_detach(dma_info_t *di)
+{
+	if (di == NULL)
+		return;
+
+	DMA_TRACE(("%s: dma_detach\n", di->name));
+
+	/* shouldn't be here if descriptors are unreclaimed */
+	ASSERT(di->txin == di->txout);
+	ASSERT(di->rxin == di->rxout);
+
+	/* free dma descriptor rings */
+	if (DMA64_ENAB(di)) {
+		if (di->txd64)
+			DMA_FREE_CONSISTENT(di->osh, ((int8*)(uintptr)di->txd64 - di->txdalign),
+			                    di->txdalloc, (di->txdpa - di->txdalign), &di->tx_dmah);
+		if (di->rxd64)
+			DMA_FREE_CONSISTENT(di->osh, ((int8*)(uintptr)di->rxd64 - di->rxdalign),
+			                    di->rxdalloc, (di->rxdpa - di->rxdalign), &di->rx_dmah);
+	} else {
+		if (di->txd32)
+			DMA_FREE_CONSISTENT(di->osh, ((int8*)(uintptr)di->txd32 - di->txdalign),
+			                    di->txdalloc, (di->txdpa - di->txdalign), &di->tx_dmah);
+		if (di->rxd32)
+			DMA_FREE_CONSISTENT(di->osh, ((int8*)(uintptr)di->rxd32 - di->rxdalign),
+			                    di->rxdalloc, (di->rxdpa - di->rxdalign), &di->rx_dmah);
+	}
+
+	/* free packet pointer vectors */
+	if (di->txp)
+		MFREE(di->osh, (void *)di->txp, (di->ntxd * sizeof(void *)));
+	if (di->rxp)
+		MFREE(di->osh, (void *)di->rxp, (di->nrxd * sizeof(void *)));
+
+	/* free tx packet DMA handles */
+	if (di->txp_dmah)
+		MFREE(di->osh, (void *)di->txp_dmah, di->ntxd * sizeof(osldma_t **));
+
+	/* free rx packet DMA handles */
+	if (di->rxp_dmah)
+		MFREE(di->osh, (void *)di->rxp_dmah, di->nrxd * sizeof(osldma_t **));
+
+	/* free our private info structure */
+	MFREE(di->osh, (void *)di, sizeof(dma_info_t));
+
+}
+
+/* return TRUE if this dma engine supports DmaExtendedAddrChanges, otherwise FALSE */
+static bool
+_dma_isaddrext(dma_info_t *di)
+{
+	if (DMA64_ENAB(di)) {
+		/* DMA64 supports full 32 bits or 64 bits. AE is always valid */
+
+		/* not all tx or rx channel are available */
+		if (di->d64txregs != NULL) {
+			if (!_dma64_addrext(di->osh, di->d64txregs)) {
+				DMA_ERROR(("%s: _dma_isaddrext: DMA64 tx doesn't have AE set\n",
+					di->name));
+				ASSERT(0);
+			}
+			return TRUE;
+		} else if (di->d64rxregs != NULL) {
+			if (!_dma64_addrext(di->osh, di->d64rxregs)) {
+				DMA_ERROR(("%s: _dma_isaddrext: DMA64 rx doesn't have AE set\n",
+					di->name));
+				ASSERT(0);
+			}
+			return TRUE;
+		}
+		return FALSE;
+	} else if (di->d32txregs)
+		return (_dma32_addrext(di->osh, di->d32txregs));
+	else if (di->d32rxregs)
+		return (_dma32_addrext(di->osh, di->d32rxregs));
+	return FALSE;
+}
+
+/* initialize descriptor table base address */
+static void
+_dma_ddtable_init(dma_info_t *di, uint direction, ulong pa)
+{
+	if (DMA64_ENAB(di)) {
+
+		if ((di->ddoffsetlow != SB_PCI_DMA) || !(pa & PCI32ADDR_HIGH)) {
+			if (direction == DMA_TX) {
+				W_REG(di->osh, &di->d64txregs->addrlow, (pa + di->ddoffsetlow));
+				W_REG(di->osh, &di->d64txregs->addrhigh, di->ddoffsethigh);
+			} else {
+				W_REG(di->osh, &di->d64rxregs->addrlow, (pa + di->ddoffsetlow));
+				W_REG(di->osh, &di->d64rxregs->addrhigh, di->ddoffsethigh);
+			}
+		} else {
+			/* DMA64 32bits address extension */
+			uint32 ae;
+			ASSERT(di->addrext);
+
+			/* shift the high bit(s) from pa to ae */
+			ae = (pa & PCI32ADDR_HIGH) >> PCI32ADDR_HIGH_SHIFT;
+			pa &= ~PCI32ADDR_HIGH;
+
+			if (direction == DMA_TX) {
+				W_REG(di->osh, &di->d64txregs->addrlow, (pa + di->ddoffsetlow));
+				W_REG(di->osh, &di->d64txregs->addrhigh, di->ddoffsethigh);
+				SET_REG(di->osh, &di->d64txregs->control, D64_XC_AE,
+					(ae << D64_XC_AE_SHIFT));
+			} else {
+				W_REG(di->osh, &di->d64rxregs->addrlow, (pa + di->ddoffsetlow));
+				W_REG(di->osh, &di->d64rxregs->addrhigh, di->ddoffsethigh);
+				SET_REG(di->osh, &di->d64rxregs->control, D64_RC_AE,
+					(ae << D64_RC_AE_SHIFT));
+			}
+		}
+
+	} else {
+		if ((di->ddoffsetlow != SB_PCI_DMA) || !(pa & PCI32ADDR_HIGH)) {
+			if (direction == DMA_TX)
+				W_REG(di->osh, &di->d32txregs->addr, (pa + di->ddoffsetlow));
+			else
+				W_REG(di->osh, &di->d32rxregs->addr, (pa + di->ddoffsetlow));
+		} else {
+			/* dma32 address extension */
+			uint32 ae;
+			ASSERT(di->addrext);
+
+			/* shift the high bit(s) from pa to ae */
+			ae = (pa & PCI32ADDR_HIGH) >> PCI32ADDR_HIGH_SHIFT;
+			pa &= ~PCI32ADDR_HIGH;
+
+			if (direction == DMA_TX) {
+				W_REG(di->osh, &di->d32txregs->addr, (pa + di->ddoffsetlow));
+				SET_REG(di->osh, &di->d32txregs->control, XC_AE, ae <<XC_AE_SHIFT);
+			} else {
+				W_REG(di->osh, &di->d32rxregs->addr, (pa + di->ddoffsetlow));
+				SET_REG(di->osh, &di->d32rxregs->control, RC_AE, ae <<RC_AE_SHIFT);
+			}
+		}
+	}
+}
+
+static void
+_dma_fifoloopbackenable(dma_info_t *di)
+{
+	DMA_TRACE(("%s: dma_fifoloopbackenable\n", di->name));
+	if (DMA64_ENAB(di))
+		OR_REG(di->osh, &di->d64txregs->control, D64_XC_LE);
+	else
+		OR_REG(di->osh, &di->d32txregs->control, XC_LE);
+}
+
+static void
+_dma_rxinit(dma_info_t *di)
+{
+	DMA_TRACE(("%s: dma_rxinit\n", di->name));
+
+	if (di->nrxd == 0)
+		return;
+
+	di->rxin = di->rxout = 0;
+
+	/* clear rx descriptor ring */
+	if (DMA64_ENAB(di)) {
+		BZERO_SM((void *)(uintptr)di->rxd64, (di->nrxd * sizeof(dma64dd_t)));
+		_dma_rxenable(di);
+		_dma_ddtable_init(di, DMA_RX, di->rxdpa);
+	} else {
+		BZERO_SM((void *)(uintptr)di->rxd32, (di->nrxd * sizeof(dma32dd_t)));
+		_dma_rxenable(di);
+		_dma_ddtable_init(di, DMA_RX, di->rxdpa);
+	}
+}
+
+static void
+_dma_rxenable(dma_info_t *di)
+{
+	DMA_TRACE(("%s: dma_rxenable\n", di->name));
+
+	if (DMA64_ENAB(di))
+		W_REG(di->osh, &di->d64rxregs->control,
+		      ((di->rxoffset << D64_RC_RO_SHIFT) | D64_RC_RE));
+	else
+		W_REG(di->osh, &di->d32rxregs->control, ((di->rxoffset << RC_RO_SHIFT) | RC_RE));
+}
+
+/* !! rx entry routine, returns a pointer to the next frame received,
+ * or NULL if there are no more
+ */
+static void *
+_dma_rx(dma_info_t *di)
+{
+	void *p;
+	uint len;
+	int skiplen = 0;
+
+	while ((p = _dma_getnextrxp(di, FALSE))) {
+		/* skip giant packets which span multiple rx descriptors */
+		if (skiplen > 0) {
+			skiplen -= di->rxbufsize;
+			if (skiplen < 0)
+				skiplen = 0;
+			PKTFREE(di->osh, p, FALSE);
+			continue;
+		}
+
+		len = ltoh16(*(uint16*)(PKTDATA(di->osh, p)));
+		DMA_TRACE(("%s: dma_rx len %d\n", di->name, len));
+
+		/* bad frame length check */
+		if (len > (di->rxbufsize - di->rxoffset)) {
+			DMA_ERROR(("%s: dma_rx: bad frame length (%d)\n", di->name, len));
+			if (len > 0)
+				skiplen = len - (di->rxbufsize - di->rxoffset);
+			PKTFREE(di->osh, p, FALSE);
+			di->hnddma.rxgiants++;
+			continue;
+		}
+
+		/* set actual length */
+		PKTSETLEN(di->osh, p, (di->rxoffset + len));
+
+		break;
+	}
+
+	return (p);
+}
+
+/* post receive buffers */
+static void
+_dma_rxfill(dma_info_t *di)
+{
+	void *p;
+	uint rxin, rxout;
+	uint32 flags = 0;
+	uint n;
+	uint i;
+	uint32 pa;
+	uint extra_offset = 0;
+
+	/*
+	 * Determine how many receive buffers we're lacking
+	 * from the full complement, allocate, initialize,
+	 * and post them, then update the chip rx lastdscr.
+	 */
+
+	rxin = di->rxin;
+	rxout = di->rxout;
+
+	n = di->nrxpost - NRXDACTIVE(rxin, rxout);
+
+	DMA_TRACE(("%s: dma_rxfill: post %d\n", di->name, n));
+
+	if (di->rxbufsize > BCMEXTRAHDROOM)
+		extra_offset = BCMEXTRAHDROOM;
+
+	for (i = 0; i < n; i++) {
+		/* the di->rxbufsize doesn't include the extra headroom, we need to add it to the
+		   size to be allocated
+		*/
+		if ((p = PKTGET(di->osh, di->rxbufsize + extra_offset,
+		                FALSE)) == NULL) {
+			DMA_ERROR(("%s: dma_rxfill: out of rxbufs\n", di->name));
+			di->hnddma.rxnobuf++;
+			break;
+		}
+		/* reserve an extra headroom, if applicable */
+		if (extra_offset)
+			PKTPULL(di->osh, p, extra_offset);
+
+		/* Do a cached write instead of uncached write since DMA_MAP
+		 * will flush the cache.
+		 */
+		*(uint32*)(PKTDATA(di->osh, p)) = 0;
+
+		pa = (uint32) DMA_MAP(di->osh, PKTDATA(di->osh, p),
+		                      di->rxbufsize, DMA_RX, p);
+
+		ASSERT(ISALIGNED(pa, 4));
+
+		/* save the free packet pointer */
+		ASSERT(di->rxp[rxout] == NULL);
+		di->rxp[rxout] = p;
+
+		/* reset flags for each descriptor */
+		flags = 0;
+		if (DMA64_ENAB(di)) {
+			if (rxout == (di->nrxd - 1))
+				flags = D64_CTRL1_EOT;
+
+			dma64_dd_upd(di, di->rxd64, pa, rxout, &flags, di->rxbufsize);
+		} else {
+			if (rxout == (di->nrxd - 1))
+				flags = CTRL_EOT;
+
+			dma32_dd_upd(di, di->rxd32, pa, rxout, &flags, di->rxbufsize);
+		}
+		rxout = NEXTRXD(rxout);
+	}
+
+	di->rxout = rxout;
+
+	/* update the chip lastdscr pointer */
+	if (DMA64_ENAB(di)) {
+		W_REG(di->osh, &di->d64rxregs->ptr, I2B(rxout, dma64dd_t));
+	} else {
+		W_REG(di->osh, &di->d32rxregs->ptr, I2B(rxout, dma32dd_t));
+	}
+}
+
+/* like getnexttxp but no reclaim */
+static void *
+_dma_peeknexttxp(dma_info_t *di)
+{
+	uint end, i;
+
+	if (di->ntxd == 0)
+		return (NULL);
+
+	if (DMA64_ENAB(di)) {
+		end = B2I(R_REG(di->osh, &di->d64txregs->status0) & D64_XS0_CD_MASK, dma64dd_t);
+	} else {
+		end = B2I(R_REG(di->osh, &di->d32txregs->status) & XS_CD_MASK, dma32dd_t);
+	}
+
+	for (i = di->txin; i != end; i = NEXTTXD(i))
+		if (di->txp[i])
+			return (di->txp[i]);
+
+	return (NULL);
+}
+
+static void
+_dma_rxreclaim(dma_info_t *di)
+{
+	void *p;
+
+	/* "unused local" warning suppression for OSLs that
+	 * define PKTFREE() without using the di->osh arg
+	 */
+	di = di;
+
+	DMA_TRACE(("%s: dma_rxreclaim\n", di->name));
+
+	while ((p = _dma_getnextrxp(di, TRUE)))
+		PKTFREE(di->osh, p, FALSE);
+}
+
+static void *
+_dma_getnextrxp(dma_info_t *di, bool forceall)
+{
+	if (di->nrxd == 0)
+		return (NULL);
+
+	if (DMA64_ENAB(di)) {
+		return dma64_getnextrxp(di, forceall);
+	} else {
+		return dma32_getnextrxp(di, forceall);
+	}
+}
+
+static void
+_dma_txblock(dma_info_t *di)
+{
+	di->hnddma.txavail = 0;
+}
+
+static void
+_dma_txunblock(dma_info_t *di)
+{
+	di->hnddma.txavail = di->ntxd - NTXDACTIVE(di->txin, di->txout) - 1;
+}
+
+static uint
+_dma_txactive(dma_info_t *di)
+{
+	return (NTXDACTIVE(di->txin, di->txout));
+}
+
+static void
+_dma_counterreset(dma_info_t *di)
+{
+	/* reset all software counter */
+	di->hnddma.rxgiants = 0;
+	di->hnddma.rxnobuf = 0;
+	di->hnddma.txnobuf = 0;
+}
+
+/* get the address of the var in order to change later */
+static uintptr
+_dma_getvar(dma_info_t *di, const char *name)
+{
+	if (!strcmp(name, "&txavail"))
+		return ((uintptr) &(di->hnddma.txavail));
+	else {
+		ASSERT(0);
+	}
+	return (0);
+}
+
+void
+dma_txpioloopback(osl_t *osh, dma32regs_t *regs)
+{
+	OR_REG(osh, &regs->control, XC_LE);
+}
+
+
+
+/* 32 bits DMA functions */
+static void
+dma32_txinit(dma_info_t *di)
+{
+	DMA_TRACE(("%s: dma_txinit\n", di->name));
+
+	if (di->ntxd == 0)
+		return;
+
+	di->txin = di->txout = 0;
+	di->hnddma.txavail = di->ntxd - 1;
+
+	/* clear tx descriptor ring */
+	BZERO_SM((void *)(uintptr)di->txd32, (di->ntxd * sizeof(dma32dd_t)));
+	W_REG(di->osh, &di->d32txregs->control, XC_XE);
+	_dma_ddtable_init(di, DMA_TX, di->txdpa);
+}
+
+static bool
+dma32_txenabled(dma_info_t *di)
+{
+	uint32 xc;
+
+	/* If the chip is dead, it is not enabled :-) */
+	xc = R_REG(di->osh, &di->d32txregs->control);
+	return ((xc != 0xffffffff) && (xc & XC_XE));
+}
+
+static void
+dma32_txsuspend(dma_info_t *di)
+{
+	DMA_TRACE(("%s: dma_txsuspend\n", di->name));
+
+	if (di->ntxd == 0)
+		return;
+
+	OR_REG(di->osh, &di->d32txregs->control, XC_SE);
+}
+
+static void
+dma32_txresume(dma_info_t *di)
+{
+	DMA_TRACE(("%s: dma_txresume\n", di->name));
+
+	if (di->ntxd == 0)
+		return;
+
+	AND_REG(di->osh, &di->d32txregs->control, ~XC_SE);
+}
+
+static bool
+dma32_txsuspended(dma_info_t *di)
+{
+	return (di->ntxd == 0) || ((R_REG(di->osh, &di->d32txregs->control) & XC_SE) == XC_SE);
+}
+
+static void
+dma32_txreclaim(dma_info_t *di, bool forceall)
+{
+	void *p;
+
+	DMA_TRACE(("%s: dma_txreclaim %s\n", di->name, forceall ? "all" : ""));
+
+	while ((p = dma32_getnexttxp(di, forceall)))
+		PKTFREE(di->osh, p, TRUE);
+}
+
+static bool
+dma32_txstopped(dma_info_t *di)
+{
+	return ((R_REG(di->osh, &di->d32txregs->status) & XS_XS_MASK) == XS_XS_STOPPED);
+}
+
+static bool
+dma32_rxstopped(dma_info_t *di)
+{
+	return ((R_REG(di->osh, &di->d32rxregs->status) & RS_RS_MASK) == RS_RS_STOPPED);
+}
+
+static bool
+dma32_alloc(dma_info_t *di, uint direction)
+{
+	uint size;
+	uint ddlen;
+	void *va;
+
+	ddlen = sizeof(dma32dd_t);
+
+	size = (direction == DMA_TX) ? (di->ntxd * ddlen) : (di->nrxd * ddlen);
+
+	if (!ISALIGNED(DMA_CONSISTENT_ALIGN, D32RINGALIGN))
+		size += D32RINGALIGN;
+
+
+	if (direction == DMA_TX) {
+		if ((va = DMA_ALLOC_CONSISTENT(di->osh, size, &di->txdpa, &di->tx_dmah)) == NULL) {
+			DMA_ERROR(("%s: dma_attach: DMA_ALLOC_CONSISTENT(ntxd) failed\n",
+			           di->name));
+			return FALSE;
+		}
+
+		di->txd32 = (dma32dd_t *) ROUNDUP((uintptr)va, D32RINGALIGN);
+		di->txdalign = (uint)((int8*)(uintptr)di->txd32 - (int8*)va);
+		di->txdpa += di->txdalign;
+		di->txdalloc = size;
+		ASSERT(ISALIGNED((uintptr)di->txd32, D32RINGALIGN));
+	} else {
+		if ((va = DMA_ALLOC_CONSISTENT(di->osh, size, &di->rxdpa, &di->rx_dmah)) == NULL) {
+			DMA_ERROR(("%s: dma_attach: DMA_ALLOC_CONSISTENT(nrxd) failed\n",
+			           di->name));
+			return FALSE;
+		}
+		di->rxd32 = (dma32dd_t *) ROUNDUP((uintptr)va, D32RINGALIGN);
+		di->rxdalign = (uint)((int8*)(uintptr)di->rxd32 - (int8*)va);
+		di->rxdpa += di->rxdalign;
+		di->rxdalloc = size;
+		ASSERT(ISALIGNED((uintptr)di->rxd32, D32RINGALIGN));
+	}
+
+	return TRUE;
+}
+
+static bool
+dma32_txreset(dma_info_t *di)
+{
+	uint32 status;
+
+	if (di->ntxd == 0)
+		return TRUE;
+
+	/* suspend tx DMA first */
+	W_REG(di->osh, &di->d32txregs->control, XC_SE);
+	SPINWAIT(((status = (R_REG(di->osh, &di->d32txregs->status) & XS_XS_MASK))
+		 != XS_XS_DISABLED) &&
+		 (status != XS_XS_IDLE) &&
+		 (status != XS_XS_STOPPED),
+		 (10000));
+
+	W_REG(di->osh, &di->d32txregs->control, 0);
+	SPINWAIT(((status = (R_REG(di->osh,
+	         &di->d32txregs->status) & XS_XS_MASK)) != XS_XS_DISABLED),
+	         10000);
+
+	/* wait for the last transaction to complete */
+	OSL_DELAY(300);
+
+	return (status == XS_XS_DISABLED);
+}
+
+static bool
+dma32_rxidle(dma_info_t *di)
+{
+	DMA_TRACE(("%s: dma_rxidle\n", di->name));
+
+	if (di->nrxd == 0)
+		return TRUE;
+
+	return ((R_REG(di->osh, &di->d32rxregs->status) & RS_CD_MASK) ==
+	        R_REG(di->osh, &di->d32rxregs->ptr));
+}
+
+static bool
+dma32_rxreset(dma_info_t *di)
+{
+	uint32 status;
+
+	if (di->nrxd == 0)
+		return TRUE;
+
+	W_REG(di->osh, &di->d32rxregs->control, 0);
+	SPINWAIT(((status = (R_REG(di->osh,
+	         &di->d32rxregs->status) & RS_RS_MASK)) != RS_RS_DISABLED),
+	         10000);
+
+	return (status == RS_RS_DISABLED);
+}
+
+static bool
+dma32_rxenabled(dma_info_t *di)
+{
+	uint32 rc;
+
+	rc = R_REG(di->osh, &di->d32rxregs->control);
+	return ((rc != 0xffffffff) && (rc & RC_RE));
+}
+
+static bool
+dma32_txsuspendedidle(dma_info_t *di)
+{
+	if (di->ntxd == 0)
+		return TRUE;
+
+	if (!(R_REG(di->osh, &di->d32txregs->control) & XC_SE))
+		return 0;
+
+	if ((R_REG(di->osh, &di->d32txregs->status) & XS_XS_MASK) != XS_XS_IDLE)
+		return 0;
+
+	OSL_DELAY(2);
+	return ((R_REG(di->osh, &di->d32txregs->status) & XS_XS_MASK) == XS_XS_IDLE);
+}
+
+/* !! tx entry routine
+ * supports full 32bit dma engine buffer addressing so
+ * dma buffers can cross 4 Kbyte page boundaries.
+ */
+static int
+dma32_txfast(dma_info_t *di, void *p0, bool commit)
+{
+	void *p, *next;
+	uchar *data;
+	uint len;
+	uint txout;
+	uint32 flags = 0;
+	uint32 pa;
+
+	DMA_TRACE(("%s: dma_txfast\n", di->name));
+
+	txout = di->txout;
+
+	/*
+	 * Walk the chain of packet buffers
+	 * allocating and initializing transmit descriptor entries.
+	 */
+	for (p = p0; p; p = next) {
+		data = PKTDATA(di->osh, p);
+		len = PKTLEN(di->osh, p);
+		next = PKTNEXT(di->osh, p);
+
+		/* return nonzero if out of tx descriptors */
+		if (NEXTTXD(txout) == di->txin)
+			goto outoftxd;
+
+		if (len == 0)
+			continue;
+
+		/* get physical address of buffer start */
+		pa = (uint32) DMA_MAP(di->osh, data, len, DMA_TX, p);
+
+		flags = 0;
+		if (p == p0)
+			flags |= CTRL_SOF;
+		if (next == NULL)
+			flags |= (CTRL_IOC | CTRL_EOF);
+		if (txout == (di->ntxd - 1))
+			flags |= CTRL_EOT;
+
+		dma32_dd_upd(di, di->txd32, pa, txout, &flags, len);
+		ASSERT(di->txp[txout] == NULL);
+
+		txout = NEXTTXD(txout);
+	}
+
+	/* if last txd eof not set, fix it */
+	if (!(flags & CTRL_EOF))
+		W_SM(&di->txd32[PREVTXD(txout)].ctrl, BUS_SWAP32(flags | CTRL_IOC | CTRL_EOF));
+
+	/* save the packet */
+	di->txp[PREVTXD(txout)] = p0;
+
+	/* bump the tx descriptor index */
+	di->txout = txout;
+
+	/* kick the chip */
+	if (commit)
+		W_REG(di->osh, &di->d32txregs->ptr, I2B(txout, dma32dd_t));
+
+	/* tx flow control */
+	di->hnddma.txavail = di->ntxd - NTXDACTIVE(di->txin, di->txout) - 1;
+
+	return (0);
+
+outoftxd:
+	DMA_ERROR(("%s: dma_txfast: out of txds\n", di->name));
+	PKTFREE(di->osh, p0, TRUE);
+	di->hnddma.txavail = 0;
+	di->hnddma.txnobuf++;
+	return (-1);
+}
+
+/*
+ * Reclaim next completed txd (txds if using chained buffers) and
+ * return associated packet.
+ * If 'force' is true, reclaim txd(s) and return associated packet
+ * regardless of the value of the hardware "curr" pointer.
+ */
+static void *
+dma32_getnexttxp(dma_info_t *di, bool forceall)
+{
+	uint start, end, i;
+	void *txp;
+
+	DMA_TRACE(("%s: dma_getnexttxp %s\n", di->name, forceall ? "all" : ""));
+
+	if (di->ntxd == 0)
+		return (NULL);
+
+	txp = NULL;
+
+	start = di->txin;
+	if (forceall)
+		end = di->txout;
+	else
+		end = B2I(R_REG(di->osh, &di->d32txregs->status) & XS_CD_MASK, dma32dd_t);
+
+	if ((start == 0) && (end > di->txout))
+		goto bogus;
+
+	for (i = start; i != end && !txp; i = NEXTTXD(i)) {
+		DMA_UNMAP(di->osh, (BUS_SWAP32(R_SM(&di->txd32[i].addr)) - di->dataoffsetlow),
+		          (BUS_SWAP32(R_SM(&di->txd32[i].ctrl)) & CTRL_BC_MASK),
+		          DMA_TX, di->txp[i]);
+
+		W_SM(&di->txd32[i].addr, 0xdeadbeef);
+		txp = di->txp[i];
+		di->txp[i] = NULL;
+	}
+
+	di->txin = i;
+
+	/* tx flow control */
+	di->hnddma.txavail = di->ntxd - NTXDACTIVE(di->txin, di->txout) - 1;
+
+	return (txp);
+
+bogus:
+/*
+	DMA_ERROR(("dma_getnexttxp: bogus curr: start %d end %d txout %d force %d\n",
+		start, end, di->txout, forceall));
+*/
+	return (NULL);
+}
+
+static void *
+dma32_getnextrxp(dma_info_t *di, bool forceall)
+{
+	uint i;
+	void *rxp;
+
+	/* if forcing, dma engine must be disabled */
+	ASSERT(!forceall || !dma32_rxenabled(di));
+
+	i = di->rxin;
+
+	/* return if no packets posted */
+	if (i == di->rxout)
+		return (NULL);
+
+	/* ignore curr if forceall */
+	if (!forceall && (i == B2I(R_REG(di->osh, &di->d32rxregs->status) & RS_CD_MASK, dma32dd_t)))
+		return (NULL);
+
+	/* get the packet pointer that corresponds to the rx descriptor */
+	rxp = di->rxp[i];
+	ASSERT(rxp);
+	di->rxp[i] = NULL;
+
+	/* clear this packet from the descriptor ring */
+	DMA_UNMAP(di->osh, (BUS_SWAP32(R_SM(&di->rxd32[i].addr)) - di->dataoffsetlow),
+	          di->rxbufsize, DMA_RX, rxp);
+
+	W_SM(&di->rxd32[i].addr, 0xdeadbeef);
+
+	di->rxin = NEXTRXD(i);
+
+	return (rxp);
+}
+
+/*
+ * Rotate all active tx dma ring entries "forward" by (ActiveDescriptor - txin).
+ */
+static void
+dma32_txrotate(dma_info_t *di)
+{
+	uint ad;
+	uint nactive;
+	uint rot;
+	uint old, new;
+	uint32 w;
+	uint first, last;
+
+	ASSERT(dma32_txsuspendedidle(di));
+
+	nactive = _dma_txactive(di);
+	ad = B2I(((R_REG(di->osh, &di->d32txregs->status) & XS_AD_MASK) >> XS_AD_SHIFT), dma32dd_t);
+	rot = TXD(ad - di->txin);
+
+	ASSERT(rot < di->ntxd);
+
+	/* full-ring case is a lot harder - don't worry about this */
+	if (rot >= (di->ntxd - nactive)) {
+		DMA_ERROR(("%s: dma_txrotate: ring full - punt\n", di->name));
+		return;
+	}
+
+	first = di->txin;
+	last = PREVTXD(di->txout);
+
+	/* move entries starting at last and moving backwards to first */
+	for (old = last; old != PREVTXD(first); old = PREVTXD(old)) {
+		new = TXD(old + rot);
+
+		/*
+		 * Move the tx dma descriptor.
+		 * EOT is set only in the last entry in the ring.
+		 */
+		w = BUS_SWAP32(R_SM(&di->txd32[old].ctrl)) & ~CTRL_EOT;
+		if (new == (di->ntxd - 1))
+			w |= CTRL_EOT;
+		W_SM(&di->txd32[new].ctrl, BUS_SWAP32(w));
+		W_SM(&di->txd32[new].addr, R_SM(&di->txd32[old].addr));
+
+		/* zap the old tx dma descriptor address field */
+		W_SM(&di->txd32[old].addr, BUS_SWAP32(0xdeadbeef));
+
+		/* move the corresponding txp[] entry */
+		ASSERT(di->txp[new] == NULL);
+		di->txp[new] = di->txp[old];
+		di->txp[old] = NULL;
+	}
+
+	/* update txin and txout */
+	di->txin = ad;
+	di->txout = TXD(di->txout + rot);
+	di->hnddma.txavail = di->ntxd - NTXDACTIVE(di->txin, di->txout) - 1;
+
+	/* kick the chip */
+	W_REG(di->osh, &di->d32txregs->ptr, I2B(di->txout, dma32dd_t));
+}
+
+/* 64 bits DMA functions */
+
+#ifdef BCMDMA64
+static void
+dma64_txinit(dma_info_t *di)
+{
+	DMA_TRACE(("%s: dma_txinit\n", di->name));
+
+	if (di->ntxd == 0)
+		return;
+
+	di->txin = di->txout = 0;
+	di->hnddma.txavail = di->ntxd - 1;
+
+	/* clear tx descriptor ring */
+	BZERO_SM((void *)(uintptr)di->txd64, (di->ntxd * sizeof(dma64dd_t)));
+	W_REG(di->osh, &di->d64txregs->control, D64_XC_XE);
+	_dma_ddtable_init(di, DMA_TX, di->txdpa);
+}
+
+static bool
+dma64_txenabled(dma_info_t *di)
+{
+	uint32 xc;
+
+	/* If the chip is dead, it is not enabled :-) */
+	xc = R_REG(di->osh, &di->d64txregs->control);
+	return ((xc != 0xffffffff) && (xc & D64_XC_XE));
+}
+
+static void
+dma64_txsuspend(dma_info_t *di)
+{
+	DMA_TRACE(("%s: dma_txsuspend\n", di->name));
+
+	if (di->ntxd == 0)
+		return;
+
+	OR_REG(di->osh, &di->d64txregs->control, D64_XC_SE);
+}
+
+static void
+dma64_txresume(dma_info_t *di)
+{
+	DMA_TRACE(("%s: dma_txresume\n", di->name));
+
+	if (di->ntxd == 0)
+		return;
+
+	AND_REG(di->osh, &di->d64txregs->control, ~D64_XC_SE);
+}
+
+static bool
+dma64_txsuspended(dma_info_t *di)
+{
+	return (di->ntxd == 0) || ((R_REG(di->osh, &di->d64txregs->control) & D64_XC_SE)
+	        == D64_XC_SE);
+}
+
+static void
+dma64_txreclaim(dma_info_t *di, bool forceall)
+{
+	void *p;
+
+	DMA_TRACE(("%s: dma_txreclaim %s\n", di->name, forceall ? "all" : ""));
+
+	while ((p = dma64_getnexttxp(di, forceall)))
+		PKTFREE(di->osh, p, TRUE);
+}
+
+static bool
+dma64_txstopped(dma_info_t *di)
+{
+	return ((R_REG(di->osh, &di->d64txregs->status0) & D64_XS0_XS_MASK) == D64_XS0_XS_STOPPED);
+}
+
+static bool
+dma64_rxstopped(dma_info_t *di)
+{
+	return ((R_REG(di->osh, &di->d64rxregs->status0) & D64_RS0_RS_MASK) == D64_RS0_RS_STOPPED);
+}
+
+static bool
+dma64_alloc(dma_info_t *di, uint direction)
+{
+	uint size;
+	uint ddlen;
+	uint32 alignbytes;
+	void *va;
+
+	ddlen = sizeof(dma64dd_t);
+
+	size = (direction == DMA_TX) ? (di->ntxd * ddlen) : (di->nrxd * ddlen);
+
+	alignbytes = di->dma64align;
+
+	if (!ISALIGNED(DMA_CONSISTENT_ALIGN, alignbytes))
+		size += alignbytes;
+
+	if (direction == DMA_TX) {
+		if ((va = DMA_ALLOC_CONSISTENT(di->osh, size, &di->txdpa, &di->tx_dmah)) == NULL) {
+			DMA_ERROR(("%s: dma_attach: DMA_ALLOC_CONSISTENT(ntxd) failed\n",
+			           di->name));
+			return FALSE;
+		}
+
+		di->txd64 = (dma64dd_t *) ROUNDUP((uintptr)va, alignbytes);
+		di->txdalign = (uint)((int8*)(uintptr)di->txd64 - (int8*)va);
+		di->txdpa += di->txdalign;
+		di->txdalloc = size;
+		ASSERT(ISALIGNED((uintptr)di->txd64, alignbytes));
+	} else {
+		if ((va = DMA_ALLOC_CONSISTENT(di->osh, size, &di->rxdpa, &di->rx_dmah)) == NULL) {
+			DMA_ERROR(("%s: dma_attach: DMA_ALLOC_CONSISTENT(nrxd) failed\n",
+			           di->name));
+			return FALSE;
+		}
+		di->rxd64 = (dma64dd_t *) ROUNDUP((uintptr)va, alignbytes);
+		di->rxdalign = (uint)((int8*)(uintptr)di->rxd64 - (int8*)va);
+		di->rxdpa += di->rxdalign;
+		di->rxdalloc = size;
+		ASSERT(ISALIGNED((uintptr)di->rxd64, alignbytes));
+	}
+
+	return TRUE;
+}
+
+static bool
+dma64_txreset(dma_info_t *di)
+{
+	uint32 status;
+
+	if (di->ntxd == 0)
+		return TRUE;
+
+	/* suspend tx DMA first */
+	W_REG(di->osh, &di->d64txregs->control, D64_XC_SE);
+	SPINWAIT(((status = (R_REG(di->osh, &di->d64txregs->status0) & D64_XS0_XS_MASK)) !=
+	          D64_XS0_XS_DISABLED) &&
+	         (status != D64_XS0_XS_IDLE) &&
+	         (status != D64_XS0_XS_STOPPED),
+	         10000);
+
+	W_REG(di->osh, &di->d64txregs->control, 0);
+	SPINWAIT(((status = (R_REG(di->osh, &di->d64txregs->status0) & D64_XS0_XS_MASK)) !=
+	          D64_XS0_XS_DISABLED),
+	         10000);
+
+	/* wait for the last transaction to complete */
+	OSL_DELAY(300);
+
+	return (status == D64_XS0_XS_DISABLED);
+}
+
+static bool
+dma64_rxidle(dma_info_t *di)
+{
+	DMA_TRACE(("%s: dma_rxidle\n", di->name));
+
+	if (di->nrxd == 0)
+		return TRUE;
+
+	return ((R_REG(di->osh, &di->d64rxregs->status0) & D64_RS0_CD_MASK) ==
+		R_REG(di->osh, &di->d64rxregs->ptr));
+}
+
+static bool
+dma64_rxreset(dma_info_t *di)
+{
+	uint32 status;
+
+	if (di->nrxd == 0)
+		return TRUE;
+
+	W_REG(di->osh, &di->d64rxregs->control, 0);
+	SPINWAIT(((status = (R_REG(di->osh, &di->d64rxregs->status0) & D64_RS0_RS_MASK)) !=
+	          D64_RS0_RS_DISABLED),
+	         10000);
+
+	return (status == D64_RS0_RS_DISABLED);
+}
+
+static bool
+dma64_rxenabled(dma_info_t *di)
+{
+	uint32 rc;
+
+	rc = R_REG(di->osh, &di->d64rxregs->control);
+	return ((rc != 0xffffffff) && (rc & D64_RC_RE));
+}
+
+static bool
+dma64_txsuspendedidle(dma_info_t *di)
+{
+
+	if (di->ntxd == 0)
+		return TRUE;
+
+	if (!(R_REG(di->osh, &di->d64txregs->control) & D64_XC_SE))
+		return 0;
+
+	if ((R_REG(di->osh, &di->d64txregs->status0) & D64_XS0_XS_MASK) == D64_XS0_XS_IDLE)
+		return 1;
+
+	return 0;
+}
+
+
+/* !! tx entry routine */
+static int
+dma64_txfast(dma_info_t *di, void *p0, bool commit)
+{
+	void *p, *next;
+	uchar *data;
+	uint len;
+	uint txout;
+	uint32 flags = 0;
+	uint32 pa;
+
+	DMA_TRACE(("%s: dma_txfast\n", di->name));
+
+	txout = di->txout;
+
+	/*
+	 * Walk the chain of packet buffers
+	 * allocating and initializing transmit descriptor entries.
+	 */
+	for (p = p0; p; p = next) {
+		data = PKTDATA(di->osh, p);
+		len = PKTLEN(di->osh, p);
+		next = PKTNEXT(di->osh, p);
+
+		/* return nonzero if out of tx descriptors */
+		if (NEXTTXD(txout) == di->txin)
+			goto outoftxd;
+
+		if (len == 0)
+			continue;
+
+		/* get physical address of buffer start */
+		pa = (uint32) DMA_MAP(di->osh, data, len, DMA_TX, p);
+
+		flags = 0;
+		if (p == p0)
+			flags |= D64_CTRL1_SOF;
+		if (next == NULL)
+			flags |= (D64_CTRL1_IOC | D64_CTRL1_EOF);
+		if (txout == (di->ntxd - 1))
+			flags |= D64_CTRL1_EOT;
+
+		dma64_dd_upd(di, di->txd64, pa, txout, &flags, len);
+		ASSERT(di->txp[txout] == NULL);
+
+		txout = NEXTTXD(txout);
+	}
+
+	/* if last txd eof not set, fix it */
+	if (!(flags & D64_CTRL1_EOF))
+		W_SM(&di->txd64[PREVTXD(txout)].ctrl1,
+		     BUS_SWAP32(flags | D64_CTRL1_IOC | D64_CTRL1_EOF));
+
+	/* save the packet */
+	di->txp[PREVTXD(txout)] = p0;
+
+	/* bump the tx descriptor index */
+	di->txout = txout;
+
+	/* kick the chip */
+	if (commit)
+		W_REG(di->osh, &di->d64txregs->ptr, I2B(txout, dma64dd_t));
+
+	/* tx flow control */
+	di->hnddma.txavail = di->ntxd - NTXDACTIVE(di->txin, di->txout) - 1;
+
+	return (0);
+
+outoftxd:
+	DMA_ERROR(("%s: dma_txfast: out of txds\n", di->name));
+	PKTFREE(di->osh, p0, TRUE);
+	di->hnddma.txavail = 0;
+	di->hnddma.txnobuf++;
+	return (-1);
+}
+
+/*
+ * Reclaim next completed txd (txds if using chained buffers) and
+ * return associated packet.
+ * If 'force' is true, reclaim txd(s) and return associated packet
+ * regardless of the value of the hardware "curr" pointer.
+ */
+static void *
+dma64_getnexttxp(dma_info_t *di, bool forceall)
+{
+	uint start, end, i;
+	void *txp;
+
+	DMA_TRACE(("%s: dma_getnexttxp %s\n", di->name, forceall ? "all" : ""));
+
+	if (di->ntxd == 0)
+		return (NULL);
+
+	txp = NULL;
+
+	start = di->txin;
+	if (forceall)
+		end = di->txout;
+	else
+		end = B2I(R_REG(di->osh, &di->d64txregs->status0) & D64_XS0_CD_MASK, dma64dd_t);
+
+	if ((start == 0) && (end > di->txout))
+		goto bogus;
+
+	for (i = start; i != end && !txp; i = NEXTTXD(i)) {
+		DMA_UNMAP(di->osh, (BUS_SWAP32(R_SM(&di->txd64[i].addrlow)) - di->dataoffsetlow),
+		          (BUS_SWAP32(R_SM(&di->txd64[i].ctrl2)) & D64_CTRL2_BC_MASK),
+		          DMA_TX, di->txp[i]);
+
+		W_SM(&di->txd64[i].addrlow, 0xdeadbeef);
+		W_SM(&di->txd64[i].addrhigh, 0xdeadbeef);
+
+		txp = di->txp[i];
+		di->txp[i] = NULL;
+	}
+
+	di->txin = i;
+
+	/* tx flow control */
+	di->hnddma.txavail = di->ntxd - NTXDACTIVE(di->txin, di->txout) - 1;
+
+	return (txp);
+
+bogus:
+/*
+	DMA_ERROR(("dma_getnexttxp: bogus curr: start %d end %d txout %d force %d\n",
+		start, end, di->txout, forceall));
+*/
+	return (NULL);
+}
+
+static void *
+dma64_getnextrxp(dma_info_t *di, bool forceall)
+{
+	uint i;
+	void *rxp;
+
+	/* if forcing, dma engine must be disabled */
+	ASSERT(!forceall || !dma64_rxenabled(di));
+
+	i = di->rxin;
+
+	/* return if no packets posted */
+	if (i == di->rxout)
+		return (NULL);
+
+	/* ignore curr if forceall */
+	if (!forceall &&
+	    (i == B2I(R_REG(di->osh, &di->d64rxregs->status0) & D64_RS0_CD_MASK, dma64dd_t)))
+		return (NULL);
+
+	/* get the packet pointer that corresponds to the rx descriptor */
+	rxp = di->rxp[i];
+	ASSERT(rxp);
+	di->rxp[i] = NULL;
+
+	/* clear this packet from the descriptor ring */
+	DMA_UNMAP(di->osh, (BUS_SWAP32(R_SM(&di->rxd64[i].addrlow)) - di->dataoffsetlow),
+	          di->rxbufsize, DMA_RX, rxp);
+
+	W_SM(&di->rxd64[i].addrlow, 0xdeadbeef);
+	W_SM(&di->rxd64[i].addrhigh, 0xdeadbeef);
+
+	di->rxin = NEXTRXD(i);
+
+	return (rxp);
+}
+
+static bool
+_dma64_addrext(osl_t *osh, dma64regs_t *dma64regs)
+{
+	uint32 w;
+	OR_REG(osh, &dma64regs->control, D64_XC_AE);
+	w = R_REG(osh, &dma64regs->control);
+	AND_REG(osh, &dma64regs->control, ~D64_XC_AE);
+	return ((w & D64_XC_AE) == D64_XC_AE);
+}
+
+/*
+ * Rotate all active tx dma ring entries "forward" by (ActiveDescriptor - txin).
+ */
+static void
+dma64_txrotate(dma_info_t *di)
+{
+	uint ad;
+	uint nactive;
+	uint rot;
+	uint old, new;
+	uint32 w;
+	uint first, last;
+
+	ASSERT(dma64_txsuspendedidle(di));
+
+	nactive = _dma_txactive(di);
+	ad = B2I((R_REG(di->osh, &di->d64txregs->status1) & D64_XS1_AD_MASK), dma64dd_t);
+	rot = TXD(ad - di->txin);
+
+	ASSERT(rot < di->ntxd);
+
+	/* full-ring case is a lot harder - don't worry about this */
+	if (rot >= (di->ntxd - nactive)) {
+		DMA_ERROR(("%s: dma_txrotate: ring full - punt\n", di->name));
+		return;
+	}
+
+	first = di->txin;
+	last = PREVTXD(di->txout);
+
+	/* move entries starting at last and moving backwards to first */
+	for (old = last; old != PREVTXD(first); old = PREVTXD(old)) {
+		new = TXD(old + rot);
+
+		/*
+		 * Move the tx dma descriptor.
+		 * EOT is set only in the last entry in the ring.
+		 */
+		w = BUS_SWAP32(R_SM(&di->txd64[old].ctrl1)) & ~D64_CTRL1_EOT;
+		if (new == (di->ntxd - 1))
+			w |= D64_CTRL1_EOT;
+		W_SM(&di->txd64[new].ctrl1, BUS_SWAP32(w));
+
+		w = BUS_SWAP32(R_SM(&di->txd64[old].ctrl2));
+		W_SM(&di->txd64[new].ctrl2, BUS_SWAP32(w));
+
+		W_SM(&di->txd64[new].addrlow, R_SM(&di->txd64[old].addrlow));
+		W_SM(&di->txd64[new].addrhigh, R_SM(&di->txd64[old].addrhigh));
+
+		/* zap the old tx dma descriptor address field */
+		W_SM(&di->txd64[old].addrlow, BUS_SWAP32(0xdeadbeef));
+		W_SM(&di->txd64[old].addrhigh, BUS_SWAP32(0xdeadbeef));
+
+		/* move the corresponding txp[] entry */
+		ASSERT(di->txp[new] == NULL);
+		di->txp[new] = di->txp[old];
+		di->txp[old] = NULL;
+	}
+
+	/* update txin and txout */
+	di->txin = ad;
+	di->txout = TXD(di->txout + rot);
+	di->hnddma.txavail = di->ntxd - NTXDACTIVE(di->txin, di->txout) - 1;
+
+	/* kick the chip */
+	W_REG(di->osh, &di->d64txregs->ptr, I2B(di->txout, dma64dd_t));
+}
+
+#endif	/* BCMDMA64 */
+
+uint
+dma_addrwidth(sb_t *sbh, void *dmaregs)
+{
+	dma32regs_t *dma32regs;
+	osl_t *osh;
+
+	osh = sb_osh(sbh);
+
+	if (DMA64_CAP) {
+		/* DMA engine is 64-bit capable */
+		if (((sb_coreflagshi(sbh, 0, 0) & SBTMH_DMA64) == SBTMH_DMA64)) {
+			/* backplane are 64 bits capable */
+#if 0
+			if (sb_backplane64(sbh))
+				/* If bus is System Backplane or PCIE then we can access 64-bits */
+				if ((BUSTYPE(sbh->bustype) == SB_BUS) ||
+				    ((BUSTYPE(sbh->bustype) == PCI_BUS) &&
+					sbh->buscoretype == SB_PCIE))
+					return (DMADDRWIDTH_64);
+#endif
+
+			/* DMA64 is always 32 bits capable, AE is always TRUE */
+#ifdef BCMDMA64
+			ASSERT(_dma64_addrext(osh, (dma64regs_t *)dmaregs));
+#endif
+			return (DMADDRWIDTH_32);
+		}
+	}
+
+	/* Start checking for 32-bit / 30-bit addressing */
+	dma32regs = (dma32regs_t *)dmaregs;
+
+	/* For System Backplane, PCIE bus or addrext feature, 32-bits ok */
+	if ((BUSTYPE(sbh->bustype) == SB_BUS) ||
+	    ((BUSTYPE(sbh->bustype) == PCI_BUS) && sbh->buscoretype == SB_PCIE) ||
+	    (_dma32_addrext(osh, dma32regs)))
+		return (DMADDRWIDTH_32);
+
+	/* Fallthru */
+	return (DMADDRWIDTH_30);
+}
diff --git a/package/broadcom-wl/src/driver/hnddma.h b/package/broadcom-wl/src/driver/hnddma.h
new file mode 100644
index 0000000000..de74c067b2
--- /dev/null
+++ b/package/broadcom-wl/src/driver/hnddma.h
@@ -0,0 +1,156 @@
+/*
+ * Generic Broadcom Home Networking Division (HND) DMA engine SW interface
+ * This supports the following chips: BCM42xx, 44xx, 47xx .
+ *
+ * Copyright 2006, Broadcom Corporation
+ * All Rights Reserved.
+ * 
+ * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
+ * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
+ * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
+ * $Id: hnddma.h,v 1.1.1.13 2006/04/08 06:13:39 honor Exp $
+ */
+
+#ifndef	_hnddma_h_
+#define	_hnddma_h_
+
+typedef const struct hnddma_pub hnddma_t;
+
+/* dma function type */
+typedef void (*di_detach_t)(hnddma_t *dmah);
+typedef bool (*di_txreset_t)(hnddma_t *dmah);
+typedef bool (*di_rxreset_t)(hnddma_t *dmah);
+typedef bool (*di_rxidle_t)(hnddma_t *dmah);
+typedef void (*di_txinit_t)(hnddma_t *dmah);
+typedef bool (*di_txenabled_t)(hnddma_t *dmah);
+typedef void (*di_rxinit_t)(hnddma_t *dmah);
+typedef void (*di_txsuspend_t)(hnddma_t *dmah);
+typedef void (*di_txresume_t)(hnddma_t *dmah);
+typedef bool (*di_txsuspended_t)(hnddma_t *dmah);
+typedef bool (*di_txsuspendedidle_t)(hnddma_t *dmah);
+typedef int (*di_txfast_t)(hnddma_t *dmah, void *p, bool commit);
+typedef void (*di_fifoloopbackenable_t)(hnddma_t *dmah);
+typedef bool  (*di_txstopped_t)(hnddma_t *dmah);
+typedef bool  (*di_rxstopped_t)(hnddma_t *dmah);
+typedef bool  (*di_rxenable_t)(hnddma_t *dmah);
+typedef bool  (*di_rxenabled_t)(hnddma_t *dmah);
+typedef void* (*di_rx_t)(hnddma_t *dmah);
+typedef void (*di_rxfill_t)(hnddma_t *dmah);
+typedef void (*di_txreclaim_t)(hnddma_t *dmah, bool forceall);
+typedef void (*di_rxreclaim_t)(hnddma_t *dmah);
+typedef	uintptr	(*di_getvar_t)(hnddma_t *dmah, char *name);
+typedef void* (*di_getnexttxp_t)(hnddma_t *dmah, bool forceall);
+typedef void* (*di_getnextrxp_t)(hnddma_t *dmah, bool forceall);
+typedef void* (*di_peeknexttxp_t)(hnddma_t *dmah);
+typedef void (*di_txblock_t)(hnddma_t *dmah);
+typedef void (*di_txunblock_t)(hnddma_t *dmah);
+typedef uint (*di_txactive_t)(hnddma_t *dmah);
+typedef void (*di_txrotate_t)(hnddma_t *dmah);
+typedef void (*di_counterreset_t)(hnddma_t *dmah);
+typedef char* (*di_dump_t)(hnddma_t *dmah, struct bcmstrbuf *b, bool dumpring);
+typedef char* (*di_dumptx_t)(hnddma_t *dmah, struct bcmstrbuf *b, bool dumpring);
+typedef char* (*di_dumprx_t)(hnddma_t *dmah, struct bcmstrbuf *b, bool dumpring);
+
+/* dma opsvec */
+typedef struct di_fcn_s {
+	di_detach_t		detach;
+	di_txinit_t             txinit;
+	di_txreset_t		txreset;
+	di_txenabled_t          txenabled;
+	di_txsuspend_t          txsuspend;
+	di_txresume_t           txresume;
+	di_txsuspended_t        txsuspended;
+	di_txsuspendedidle_t    txsuspendedidle;
+	di_txfast_t             txfast;
+	di_txstopped_t		txstopped;
+	di_txreclaim_t          txreclaim;
+	di_getnexttxp_t         getnexttxp;
+	di_peeknexttxp_t        peeknexttxp;
+	di_txblock_t            txblock;
+	di_txunblock_t          txunblock;
+	di_txactive_t           txactive;
+	di_txrotate_t           txrotate;
+
+	di_rxinit_t             rxinit;
+	di_rxreset_t            rxreset;
+	di_rxidle_t             rxidle;
+	di_rxstopped_t		rxstopped;
+	di_rxenable_t		rxenable;
+	di_rxenabled_t		rxenabled;
+	di_rx_t                 rx;
+	di_rxfill_t             rxfill;
+	di_rxreclaim_t          rxreclaim;
+	di_getnextrxp_t         getnextrxp;
+
+	di_fifoloopbackenable_t fifoloopbackenable;
+	di_getvar_t             d_getvar;
+	di_counterreset_t       counterreset;
+	di_dump_t		dump;
+	di_dumptx_t		dumptx;
+	di_dumprx_t		dumprx;
+	uint			endnum;
+} di_fcn_t;
+
+/*
+ * Exported data structure (read-only)
+ */
+/* export structure */
+struct hnddma_pub {
+	di_fcn_t	di_fn;		/* DMA function pointers */
+	uint		txavail;	/* # free tx descriptors */
+
+	/* rx error counters */
+	uint		rxgiants;	/* rx giant frames */
+	uint		rxnobuf;	/* rx out of dma descriptors */
+	/* tx error counters */
+	uint		txnobuf;	/* tx out of dma descriptors */
+};
+
+
+extern hnddma_t * dma_attach(osl_t *osh, char *name, sb_t *sbh, void *dmaregstx, void *dmaregsrx,
+                             uint ntxd, uint nrxd, uint rxbufsize, uint nrxpost, uint rxoffset,
+                             uint *msg_level);
+#define dma_detach(di)			((di)->di_fn.detach(di))
+#define dma_txreset(di)			((di)->di_fn.txreset(di))
+#define dma_rxreset(di)			((di)->di_fn.rxreset(di))
+#define dma_rxidle(di)			((di)->di_fn.rxidle(di))
+#define dma_txinit(di)                  ((di)->di_fn.txinit(di))
+#define dma_txenabled(di)               ((di)->di_fn.txenabled(di))
+#define dma_rxinit(di)                  ((di)->di_fn.rxinit(di))
+#define dma_txsuspend(di)               ((di)->di_fn.txsuspend(di))
+#define dma_txresume(di)                ((di)->di_fn.txresume(di))
+#define dma_txsuspended(di)             ((di)->di_fn.txsuspended(di))
+#define dma_txsuspendedidle(di)         ((di)->di_fn.txsuspendedidle(di))
+#define dma_txfast(di, p, commit)	((di)->di_fn.txfast(di, p, commit))
+#define dma_fifoloopbackenable(di)      ((di)->di_fn.fifoloopbackenable(di))
+#define dma_txstopped(di)               ((di)->di_fn.txstopped(di))
+#define dma_rxstopped(di)               ((di)->di_fn.rxstopped(di))
+#define dma_rxenable(di)                ((di)->di_fn.rxenable(di))
+#define dma_rxenabled(di)               ((di)->di_fn.rxenabled(di))
+#define dma_rx(di)                      ((di)->di_fn.rx(di))
+#define dma_rxfill(di)                  ((di)->di_fn.rxfill(di))
+#define dma_txreclaim(di, forceall)	((di)->di_fn.txreclaim(di, forceall))
+#define dma_rxreclaim(di)               ((di)->di_fn.rxreclaim(di))
+#define dma_getvar(di, name)		((di)->di_fn.d_getvar(di, name))
+#define dma_getnexttxp(di, forceall)    ((di)->di_fn.getnexttxp(di, forceall))
+#define dma_getnextrxp(di, forceall)    ((di)->di_fn.getnextrxp(di, forceall))
+#define dma_peeknexttxp(di)             ((di)->di_fn.peeknexttxp(di))
+#define dma_txblock(di)                 ((di)->di_fn.txblock(di))
+#define dma_txunblock(di)               ((di)->di_fn.txunblock(di))
+#define dma_txactive(di)                ((di)->di_fn.txactive(di))
+#define dma_txrotate(di)                ((di)->di_fn.txrotate(di))
+#define dma_counterreset(di)            ((di)->di_fn.counterreset(di))
+
+#define DMA_DUMP_SIZE 2048
+/* return addresswidth allowed
+ * This needs to be done after SB attach but before dma attach.
+ * SB attach provides ability to probe backplane and dma core capabilities
+ * This info is needed by DMA_ALLOC_CONSISTENT in dma attach
+ */
+extern uint dma_addrwidth(sb_t *sbh, void *dmaregs);
+
+/* pio helpers */
+void dma_txpioloopback(osl_t *osh, dma32regs_t *);
+
+#endif	/* _hnddma_h_ */
diff --git a/package/broadcom-wl/src/driver/linux_osl.c b/package/broadcom-wl/src/driver/linux_osl.c
new file mode 100644
index 0000000000..24fd77daea
--- /dev/null
+++ b/package/broadcom-wl/src/driver/linux_osl.c
@@ -0,0 +1,274 @@
+/*
+ * Linux OS Independent Layer
+ *
+ * Copyright 2006, Broadcom Corporation
+ * All Rights Reserved.
+ * 
+ * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
+ * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
+ * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
+ *
+ * $Id: linux_osl.c,v 1.1.1.14 2006/04/08 06:13:39 honor Exp $
+ */
+
+#define LINUX_OSL
+
+#include <typedefs.h>
+#include <bcmendian.h>
+#include <linux/module.h>
+#include <linuxver.h>
+#include <bcmdefs.h>
+#include <osl.h>
+#include "linux_osl.h"
+#include <bcmutils.h>
+#include <linux/delay.h>
+#ifdef mips
+#include <asm/paccess.h>
+#endif /* mips */
+#include <pcicfg.h>
+
+#define PCI_CFG_RETRY 		10	
+
+#define OS_HANDLE_MAGIC		0x1234abcd	/* Magic # to recognise osh */
+#define BCM_MEM_FILENAME_LEN 	24		/* Mem. filename length */
+
+typedef struct bcm_mem_link {
+	struct bcm_mem_link *prev;
+	struct bcm_mem_link *next;
+	uint	size;
+	int	line;
+	char	file[BCM_MEM_FILENAME_LEN];
+} bcm_mem_link_t;
+
+static int16 linuxbcmerrormap[] =  \
+{	0, 			/* 0 */
+	-EINVAL,		/* BCME_ERROR */
+	-EINVAL,		/* BCME_BADARG */
+	-EINVAL,		/* BCME_BADOPTION */
+	-EINVAL,		/* BCME_NOTUP */
+	-EINVAL,		/* BCME_NOTDOWN */
+	-EINVAL,		/* BCME_NOTAP */
+	-EINVAL,		/* BCME_NOTSTA */
+	-EINVAL,		/* BCME_BADKEYIDX */
+	-EINVAL,		/* BCME_RADIOOFF */
+	-EINVAL,		/* BCME_NOTBANDLOCKED */
+	-EINVAL, 		/* BCME_NOCLK */
+	-EINVAL, 		/* BCME_BADRATESET */
+	-EINVAL, 		/* BCME_BADBAND */
+	-E2BIG,			/* BCME_BUFTOOSHORT */
+	-E2BIG,			/* BCME_BUFTOOLONG */
+	-EBUSY, 		/* BCME_BUSY */
+	-EINVAL, 		/* BCME_NOTASSOCIATED */
+	-EINVAL, 		/* BCME_BADSSIDLEN */
+	-EINVAL, 		/* BCME_OUTOFRANGECHAN */
+	-EINVAL, 		/* BCME_BADCHAN */
+	-EFAULT, 		/* BCME_BADADDR */
+	-ENOMEM, 		/* BCME_NORESOURCE */
+	-EOPNOTSUPP,		/* BCME_UNSUPPORTED */
+	-EMSGSIZE,		/* BCME_BADLENGTH */
+	-EINVAL,		/* BCME_NOTREADY */
+	-EPERM,			/* BCME_NOTPERMITTED */
+	-ENOMEM, 		/* BCME_NOMEM */
+	-EINVAL, 		/* BCME_ASSOCIATED */
+	-ERANGE, 		/* BCME_RANGE */
+	-EINVAL, 		/* BCME_NOTFOUND */
+	-EINVAL, 		/* BCME_WME_NOT_ENABLED */
+	-EINVAL, 		/* BCME_TSPEC_NOTFOUND */
+	-EINVAL, 		/* BCME_ACM_NOTSUPPORTED */
+	-EINVAL,		/* BCME_NOT_WME_ASSOCIATION */
+	-EIO,			/* BCME_SDIO_ERROR */
+	-ENODEV			/* BCME_DONGLE_DOWN */
+};
+
+/* translate bcmerrors into linux errors */
+int
+osl_error(int bcmerror)
+{
+	int abs_bcmerror;
+	int array_size = ARRAYSIZE(linuxbcmerrormap);
+
+	abs_bcmerror = ABS(bcmerror);
+
+	if (bcmerror > 0)
+		abs_bcmerror = 0;
+
+	else if (abs_bcmerror >= array_size)
+		abs_bcmerror = BCME_ERROR;
+
+	return linuxbcmerrormap[abs_bcmerror];
+}
+
+osl_t *
+osl_attach(void *pdev, bool pkttag)
+{
+	osl_t *osh;
+
+	osh = kmalloc(sizeof(osl_t), GFP_ATOMIC);
+	ASSERT(osh);
+
+	bzero(osh, sizeof(osl_t));
+
+	/*
+	 * check the cases where
+	 * 1.Error code Added to bcmerror table, but forgot to add it to the OS
+	 * dependent error code
+	 * 2. Error code is added to the bcmerror table, but forgot to add the
+	 * corresponding errorstring(dummy call to bcmerrorstr)
+	 */
+	bcmerrorstr(0);
+	ASSERT(ABS(BCME_LAST) == (ARRAYSIZE(linuxbcmerrormap) - 1));
+
+	osh->magic = OS_HANDLE_MAGIC;
+	osh->malloced = 0;
+	osh->failed = 0;
+	osh->dbgmem_list = NULL;
+	osh->pdev = pdev;
+	osh->pub.pkttag = pkttag;
+
+	return osh;
+}
+
+void
+osl_detach(osl_t *osh)
+{
+	if (osh == NULL)
+		return;
+
+	ASSERT(osh->magic == OS_HANDLE_MAGIC);
+	kfree(osh);
+}
+
+/* Return a new packet. zero out pkttag */
+void*
+osl_pktget(osl_t *osh, uint len, bool send)
+{
+	struct sk_buff *skb;
+
+	if ((skb = dev_alloc_skb(len))) {
+		skb_put(skb, len);
+		skb->priority = 0;
+
+#ifdef BCMDBG_PKT
+	pktlist_add(&(osh->pktlist), (void *) skb);
+#endif  /* BCMDBG_PKT */
+
+		osh->pub.pktalloced++;
+	}
+
+	return ((void*) skb);
+}
+
+typedef void (*pktfree_cb_fn_t)(void *ctx, void *pkt, uint16 status);
+/* Free the driver packet. Free the tag if present */
+void
+osl_pktfree(osl_t *osh, void *p, bool send)
+{
+	struct sk_buff *skb, *nskb;
+	pktfree_cb_fn_t tx_fn = osh->pub.tx_fn;
+
+	skb = (struct sk_buff*) p;
+	
+	if (send && tx_fn)
+		tx_fn(osh->pub.tx_ctx, p, 0);
+
+	/* perversion: we use skb->next to chain multi-skb packets */
+	while (skb) {
+		nskb = skb->next;
+		skb->next = NULL;
+
+#ifdef BCMDBG_PKT
+		pktlist_remove(&(osh->pktlist), (void *) skb);
+#endif  /* BCMDBG_PKT */
+
+		if (skb->destructor) {
+			/* cannot kfree_skb() on hard IRQ (net/core/skbuff.c) if destructor exists
+			 */
+			dev_kfree_skb_any(skb);
+		} else {
+			/* can free immediately (even in_irq()) if destructor does not exist */
+			dev_kfree_skb(skb);
+		}
+
+		osh->pub.pktalloced--;
+
+		skb = nskb;
+	}
+}
+
+void*
+osl_malloc(osl_t *osh, uint size)
+{
+	void *addr;
+
+	/* only ASSERT if osh is defined */
+	if (osh)
+		ASSERT(osh->magic == OS_HANDLE_MAGIC);
+
+	if ((addr = kmalloc(size, GFP_ATOMIC)) == NULL) {
+		if (osh)
+			osh->failed++;
+		return (NULL);
+	}
+	if (osh)
+		osh->malloced += size;
+
+	return (addr);
+}
+
+void
+osl_mfree(osl_t *osh, void *addr, uint size)
+{
+	if (osh) {
+		ASSERT(osh->magic == OS_HANDLE_MAGIC);
+		osh->malloced -= size;
+	}
+	kfree(addr);
+}
+
+uint
+osl_malloced(osl_t *osh)
+{
+	ASSERT((osh && (osh->magic == OS_HANDLE_MAGIC)));
+	return (osh->malloced);
+}
+
+uint osl_malloc_failed(osl_t *osh)
+{
+	ASSERT((osh && (osh->magic == OS_HANDLE_MAGIC)));
+	return (osh->failed);
+}
+
+#undef osl_delay
+void
+osl_delay(uint usec)
+{
+	OSL_DELAY(usec);
+}
+
+/* Clone a packet.
+ * The pkttag contents are NOT cloned.
+ */
+void *
+osl_pktdup(osl_t *osh, void *skb)
+{
+	void * p;
+
+	if ((p = skb_clone((struct sk_buff*)skb, GFP_ATOMIC)) == NULL)
+		return NULL;
+
+	/* skb_clone copies skb->cb.. we don't want that */
+	if (osh->pub.pkttag)
+		bzero((void*)((struct sk_buff *)p)->cb, OSL_PKTTAG_SZ);
+
+	/* Increment the packet counter */
+	osh->pub.pktalloced++;
+	return (p);
+}
+
+uint
+osl_pktalloced(osl_t *osh)
+{
+	return (osh->pub.pktalloced);
+}
+
diff --git a/package/broadcom-wl/src/driver/linux_osl.h b/package/broadcom-wl/src/driver/linux_osl.h
new file mode 100644
index 0000000000..d9c5533b85
--- /dev/null
+++ b/package/broadcom-wl/src/driver/linux_osl.h
@@ -0,0 +1,171 @@
+/*
+ * Linux OS Independent Layer
+ *
+ * Copyright 2006, Broadcom Corporation
+ * All Rights Reserved.
+ * 
+ * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
+ * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
+ * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
+ *
+ * $Id: linux_osl.h,v 1.1.1.13 2006/04/08 06:13:39 honor Exp $
+ */
+
+#ifndef _linux_osl_h_
+#define _linux_osl_h_
+
+#include <typedefs.h>
+#include <linuxver.h>
+#include <osl.h>
+
+#define OSL_PKTTAG_SZ     32 /* Size of PktTag */
+
+/* osl handle type forward declaration */
+typedef struct osl_dmainfo osldma_t;
+
+/* OSL initialization */
+extern osl_t *osl_attach(void *pdev, bool pkttag);
+extern void osl_detach(osl_t *osh);
+
+/* host/bus architecture-specific byte swap */
+#define BUS_SWAP32(v)		(v)
+#define	MALLOC_FAILED(osh)	osl_malloc_failed((osh))
+
+extern void *osl_malloc(osl_t *osh, uint size);
+extern void osl_mfree(osl_t *osh, void *addr, uint size);
+extern uint osl_malloced(osl_t *osh);
+extern uint osl_malloc_failed(osl_t *osh);
+
+/* API for DMA addressing capability */
+#define	DMA_MAP(osh, va, size, direction, p) \
+	osl_dma_map((osh), (va), (size), (direction))
+#define	DMA_UNMAP(osh, pa, size, direction, p) \
+	osl_dma_unmap((osh), (pa), (size), (direction))
+static inline uint
+osl_dma_map(void *osh, void *va, uint size, int direction)
+{
+	int dir;
+	struct pci_dev *dev;
+
+	dev = (osh == NULL ? NULL : ((osl_t *)osh)->pdev);
+	dir = (direction == DMA_TX)? PCI_DMA_TODEVICE: PCI_DMA_FROMDEVICE;
+	return (pci_map_single(dev, va, size, dir));
+}
+
+static inline void
+osl_dma_unmap(void *osh, uint pa, uint size, int direction)
+{
+	int dir;
+	struct pci_dev *dev;
+
+	dev = (osh == NULL ? NULL : ((osl_t *)osh)->pdev);
+	dir = (direction == DMA_TX)? PCI_DMA_TODEVICE: PCI_DMA_FROMDEVICE;
+	pci_unmap_single(dev, (uint32)pa, size, dir);
+}
+
+#define OSL_DMADDRWIDTH(osh, addrwidth) do {} while (0)
+#define	DMA_CONSISTENT_ALIGN	PAGE_SIZE
+#define	DMA_ALLOC_CONSISTENT(osh, size, pap, dmah) \
+	osl_dma_alloc_consistent((osh), (size), (pap))
+#define	DMA_FREE_CONSISTENT(osh, va, size, pa, dmah) \
+	osl_dma_free_consistent((osh), (void*)(va), (size), (pa))
+static inline void*
+osl_dma_alloc_consistent(osl_t *osh, uint size, ulong *pap)
+{
+	return (pci_alloc_consistent(osh->pdev, size, (dma_addr_t*)pap));
+}
+
+static inline void
+osl_dma_free_consistent(osl_t *osh, void *va, uint size, ulong pa)
+{
+	pci_free_consistent(osh->pdev, size, va, (dma_addr_t)pa);
+}
+
+
+/* register access macros */
+#if defined(BCMJTAG)
+#include <bcmjtag.h>
+#define	R_REG(osh, r)	bcmjtag_read(NULL, (uint32)(r), sizeof(*(r)))
+#define	W_REG(osh, r, v)	bcmjtag_write(NULL, (uint32)(r), (uint32)(v), sizeof(*(r)))
+#endif /* defined(BCMSDIO) */
+
+/* packet primitives */
+#define	PKTGET(osh, len, send)		osl_pktget((osh), (len), (send))
+#define	PKTFREE(osh, skb, send)		osl_pktfree((osh), (skb), (send))
+#define	PKTDATA(osh, skb)		(((struct sk_buff*)(skb))->data)
+#define	PKTLEN(osh, skb)		(((struct sk_buff*)(skb))->len)
+#define PKTHEADROOM(osh, skb)		(PKTDATA(osh, skb)-(((struct sk_buff*)(skb))->head))
+#define PKTTAILROOM(osh, skb) ((((struct sk_buff*)(skb))->end)-(((struct sk_buff*)(skb))->tail))
+#define	PKTNEXT(osh, skb)		(((struct sk_buff*)(skb))->next)
+#define	PKTSETNEXT(osh, skb, x)		(((struct sk_buff*)(skb))->next = (struct sk_buff*)(x))
+#define	PKTSETLEN(osh, skb, len)	__skb_trim((struct sk_buff*)(skb), (len))
+#define	PKTPUSH(osh, skb, bytes)	skb_push((struct sk_buff*)(skb), (bytes))
+#define	PKTPULL(osh, skb, bytes)	skb_pull((struct sk_buff*)(skb), (bytes))
+#define	PKTDUP(osh, skb)		osl_pktdup((osh), (skb))
+#define	PKTTAG(skb)			((void*)(((struct sk_buff*)(skb))->cb))
+#define PKTALLOCED(osh)			osl_pktalloced((osh))
+#define PKTLIST_DUMP(osh, buf)
+
+/* Convert a native(OS) packet to driver packet.
+ * In the process, native packet is destroyed, there is no copying
+ * Also, a packettag is zeroed out
+ */
+static INLINE void *
+osl_pkt_frmnative(osl_pubinfo_t*osh, struct sk_buff *skb)
+{
+	struct sk_buff *nskb;
+
+	if (osh->pkttag)
+		bzero((void*)skb->cb, OSL_PKTTAG_SZ);
+
+	/* Increment the packet counter */
+	for (nskb = skb; nskb; nskb = nskb->next) {
+		osh->pktalloced++;
+	}
+
+	return (void *)skb;
+}
+#define PKTFRMNATIVE(osh, skb)	osl_pkt_frmnative(((osl_pubinfo_t*)osh), \
+							(struct sk_buff*)(skb))
+
+/* Convert a driver packet to native(OS) packet
+ * In the process, packettag is zeroed out before sending up
+ * IP code depends on skb->cb to be setup correctly with various options
+ * In our case, that means it should be 0
+ */
+static INLINE struct sk_buff *
+osl_pkt_tonative(osl_pubinfo_t*osh, void *pkt)
+{
+	struct sk_buff *nskb;
+
+	if (osh->pkttag)
+		bzero(((struct sk_buff*)pkt)->cb, OSL_PKTTAG_SZ);
+
+	/* Decrement the packet counter */
+	for (nskb = (struct sk_buff *)pkt; nskb; nskb = nskb->next) {
+		osh->pktalloced--;
+	}
+
+	return (struct sk_buff *)pkt;
+}
+#define PKTTONATIVE(osh, pkt)		osl_pkt_tonative((osl_pubinfo_t*)(osh), (pkt))
+
+#define	PKTLINK(skb)			(((struct sk_buff*)(skb))->prev)
+#define	PKTSETLINK(skb, x)		(((struct sk_buff*)(skb))->prev = (struct sk_buff*)(x))
+#define	PKTPRIO(skb)			(((struct sk_buff*)(skb))->priority)
+#define	PKTSETPRIO(skb, x)		(((struct sk_buff*)(skb))->priority = (x))
+#define PKTSHARED(skb)                  (((struct sk_buff*)(skb))->cloned)
+
+extern void *osl_pktget(osl_t *osh, uint len, bool send);
+extern void osl_pktfree(osl_t *osh, void *skb, bool send);
+extern void *osl_pktdup(osl_t *osh, void *skb);
+extern uint osl_pktalloced(osl_t *osh);
+
+#define OSL_ERROR(bcmerror)	osl_error(bcmerror)
+extern int osl_error(int bcmerror);
+
+/* the largest reasonable packet buffer driver uses for ethernet MTU in bytes */
+#define	PKTBUFSZ	2048   /* largest reasonable packet buffer, driver uses for ethernet MTU */
+
+#endif	/* _linux_osl_h_ */
diff --git a/package/broadcom-wl/src/driver/patchtable.pl b/package/broadcom-wl/src/driver/patchtable.pl
new file mode 100644
index 0000000000..6999735125
--- /dev/null
+++ b/package/broadcom-wl/src/driver/patchtable.pl
@@ -0,0 +1,61 @@
+#!/usr/bin/perl
+#
+# Copyright (C) 2006 OpenWrt.org
+# Copyright (C) 2006 Felix Fietkau
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+use strict;
+
+my $TABLE = pack("V", 0xbadc0ded);
+my $TABLE_SIZE = 512;
+my $SLT1 = "\x01\x00\x00\x00";
+my $SLT2 = "\x02\x00\x00\x00";
+my $ACKW = "\x03\x00\x00\x00";
+my $PTABLE_END = "\xff\xff\xff\xff";
+
+my $addr = "";
+my $opcode = "";
+my $function = "";
+
+sub add_entry {
+	my $key = shift;
+	my $value = shift;
+	my $default = shift;
+
+	$TABLE .= $key;
+	$TABLE .= pack("V", $value);
+	$TABLE .= pack("V", $default);
+}
+
+while (<>) {
+	$addr = $opcode = "";
+	/^\w{8}\s*<(.*)>:$/ and $function = $1;
+	/^\s*(\w+):\s*(\w{8})\s*/ and do {
+		$addr = $1;
+		$opcode = $2;
+	};
+
+	($function eq 'wlc_update_slot_timing') and do {
+		# li	a2,9 	-- short slot time
+		($opcode eq '24060009') and add_entry($SLT1, hex($addr), hex($opcode));
+		# li	v0,519	-- 510 + short slot time
+		($opcode eq '24020207') and add_entry($SLT2, hex($addr), hex($opcode));
+		
+		# li	a2,20	-- long slot time
+		($opcode eq '24060014') and add_entry($SLT1, hex($addr), hex($opcode));
+		# li	v0,530	-- 510 + long slot time
+		($opcode eq '24020212') and add_entry($SLT2, hex($addr), hex($opcode));
+	};
+	($function eq 'wlc_d11hdrs') and do {
+		# ori	s6,s6,0x1 -- ack flag (new)
+		($opcode eq '36d60001') and add_entry($ACKW, hex($addr), hex($opcode));
+		# ori	s3,s3,0x1 -- ack flag (old)
+		($opcode eq '36730001') and add_entry($ACKW, hex($addr), hex($opcode));
+	}
+}
+
+$TABLE .= $PTABLE_END;
+$TABLE .= ("\x00" x ($TABLE_SIZE - length($TABLE)));
+print $TABLE;
diff --git a/package/broadcom-wl/src/driver/pktq.h b/package/broadcom-wl/src/driver/pktq.h
new file mode 100644
index 0000000000..7fe21815e8
--- /dev/null
+++ b/package/broadcom-wl/src/driver/pktq.h
@@ -0,0 +1,97 @@
+/*
+ * Misc useful os-independent macros and functions.
+ *
+ * Copyright 2006, Broadcom Corporation
+ * All Rights Reserved.
+ * 
+ * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
+ * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
+ * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
+ * $Id: bcmutils.h,v 1.1.1.16 2006/04/08 06:13:39 honor Exp $
+ */
+
+#ifndef	_pktq_h_
+#define	_pktq_h_
+#include <osl.h>
+
+/* osl multi-precedence packet queue */
+
+#define PKTQ_LEN_DEFAULT        128	/* Max 128 packets */
+#define PKTQ_MAX_PREC           16	/* Maximum precedence levels */
+
+struct pktq {
+	struct pktq_prec {
+		void *head;     /* first packet to dequeue */
+		void *tail;     /* last packet to dequeue */
+		uint16 len;     /* number of queued packets */
+		uint16 max;     /* maximum number of queued packets */
+	} q[PKTQ_MAX_PREC];
+	uint16 num_prec;        /* number of precedences in use */
+	uint16 hi_prec;         /* rapid dequeue hint (>= highest non-empty prec) */
+	uint16 max;             /* total max packets */
+	uint16 len;             /* total number of packets */
+};
+
+#define PKTQ_PREC_ITER(pq, prec)        for (prec = (pq)->num_prec - 1; prec >= 0; prec--)
+
+/* forward definition of ether_addr structure used by some function prototypes */
+
+struct ether_addr;
+
+/* operations on a specific precedence in packet queue */
+
+#define pktq_psetmax(pq, prec, _max)    ((pq)->q[prec].max = (_max))
+#define pktq_plen(pq, prec)             ((pq)->q[prec].len)
+#define pktq_pavail(pq, prec)           ((pq)->q[prec].max - (pq)->q[prec].len)
+#define pktq_pfull(pq, prec)            ((pq)->q[prec].len >= (pq)->q[prec].max)
+#define pktq_pempty(pq, prec)           ((pq)->q[prec].len == 0)
+
+#define pktq_ppeek(pq, prec)            ((pq)->q[prec].head)
+#define pktq_ppeek_tail(pq, prec)       ((pq)->q[prec].tail)
+
+extern void *pktq_penq(struct pktq *pq, int prec, void *p);
+extern void *pktq_penq_head(struct pktq *pq, int prec, void *p);
+extern void *pktq_pdeq(struct pktq *pq, int prec);
+extern void *pktq_pdeq_tail(struct pktq *pq, int prec);
+/* Empty the queue at particular precedence level */
+extern void pktq_pflush(osl_t *osh, struct pktq *pq, int prec, bool dir);
+/* Remove a specified packet from its queue */
+extern bool pktq_pdel(struct pktq *pq, void *p, int prec);
+
+/* operations on a set of precedences in packet queue */
+
+extern int pktq_mlen(struct pktq *pq, uint prec_bmp);
+extern void *pktq_mdeq(struct pktq *pq, uint prec_bmp, int *prec_out);
+
+/* operations on packet queue as a whole */
+
+#define pktq_len(pq)                    ((int)(pq)->len)
+#define pktq_max(pq)                    ((int)(pq)->max)
+#define pktq_avail(pq)                  ((int)((pq)->max - (pq)->len))
+#define pktq_full(pq)                   ((pq)->len >= (pq)->max)
+#define pktq_empty(pq)                  ((pq)->len == 0)
+
+/* operations for single precedence queues */
+#define pktenq(pq, p)		pktq_penq((pq), 0, (p))
+#define pktenq_head(pq, p)	pktq_penq_head((pq), 0, (p))
+#define pktdeq(pq)		pktq_pdeq((pq), 0)
+#define pktdeq_tail(pq)		pktq_pdeq_tail((pq), 0)
+
+extern void pktq_init(struct pktq *pq, int num_prec, int max_len);
+/* prec_out may be NULL if caller is not interested in return value */
+extern void *pktq_deq(struct pktq *pq, int *prec_out);
+extern void *pktq_deq_tail(struct pktq *pq, int *prec_out);
+extern void *pktq_peek(struct pktq *pq, int *prec_out);
+extern void *pktq_peek_tail(struct pktq *pq, int *prec_out);
+extern void pktq_flush(osl_t *osh, struct pktq *pq, bool dir); /* Empty the entire queue */
+
+/* externs */
+/* packet */
+extern uint pktcopy(osl_t *osh, void *p, uint offset, int len, uchar *buf);
+extern uint pkttotlen(osl_t *osh, void *p);
+extern void *pktlast(osl_t *osh, void *p);
+
+extern void pktsetprio(void *pkt, bool update_vtag);
+
+#endif	/* _pktq_h_ */
diff --git a/package/broadcom-wl/src/driver/sbhnddma.h b/package/broadcom-wl/src/driver/sbhnddma.h
new file mode 100644
index 0000000000..a26db7395e
--- /dev/null
+++ b/package/broadcom-wl/src/driver/sbhnddma.h
@@ -0,0 +1,284 @@
+/*
+ * Generic Broadcom Home Networking Division (HND) DMA engine HW interface
+ * This supports the following chips: BCM42xx, 44xx, 47xx .
+ *
+ * Copyright 2006, Broadcom Corporation
+ * All Rights Reserved.
+ * 
+ * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
+ * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
+ * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
+ *
+ * $Id: sbhnddma.h,v 1.1.1.2 2006/02/27 03:43:16 honor Exp $
+ */
+
+#ifndef	_sbhnddma_h_
+#define	_sbhnddma_h_
+
+/* DMA structure:
+ *  support two DMA engines: 32 bits address or 64 bit addressing
+ *  basic DMA register set is per channel(transmit or receive)
+ *  a pair of channels is defined for convenience
+ */
+
+
+/* 32 bits addressing */
+
+/* dma registers per channel(xmt or rcv) */
+typedef volatile struct {
+	uint32	control;		/* enable, et al */
+	uint32	addr;			/* descriptor ring base address (4K aligned) */
+	uint32	ptr;			/* last descriptor posted to chip */
+	uint32	status;			/* current active descriptor, et al */
+} dma32regs_t;
+
+typedef volatile struct {
+	dma32regs_t	xmt;		/* dma tx channel */
+	dma32regs_t	rcv;		/* dma rx channel */
+} dma32regp_t;
+
+typedef volatile struct {	/* diag access */
+	uint32	fifoaddr;		/* diag address */
+	uint32	fifodatalow;		/* low 32bits of data */
+	uint32	fifodatahigh;		/* high 32bits of data */
+	uint32	pad;			/* reserved */
+} dma32diag_t;
+
+/*
+ * DMA Descriptor
+ * Descriptors are only read by the hardware, never written back.
+ */
+typedef volatile struct {
+	uint32	ctrl;		/* misc control bits & bufcount */
+	uint32	addr;		/* data buffer address */
+} dma32dd_t;
+
+/*
+ * Each descriptor ring must be 4096byte aligned, and fit within a single 4096byte page.
+ */
+#define	D32MAXRINGSZ	4096
+#define	D32RINGALIGN	4096
+#define	D32MAXDD	(D32MAXRINGSZ / sizeof (dma32dd_t))
+
+/* transmit channel control */
+#define	XC_XE		((uint32)1 << 0)	/* transmit enable */
+#define	XC_SE		((uint32)1 << 1)	/* transmit suspend request */
+#define	XC_LE		((uint32)1 << 2)	/* loopback enable */
+#define	XC_FL		((uint32)1 << 4)	/* flush request */
+#define	XC_AE		((uint32)3 << 16)	/* address extension bits */
+#define	XC_AE_SHIFT	16
+
+/* transmit descriptor table pointer */
+#define	XP_LD_MASK	0xfff			/* last valid descriptor */
+
+/* transmit channel status */
+#define	XS_CD_MASK	0x0fff			/* current descriptor pointer */
+#define	XS_XS_MASK	0xf000			/* transmit state */
+#define	XS_XS_SHIFT	12
+#define	XS_XS_DISABLED	0x0000			/* disabled */
+#define	XS_XS_ACTIVE	0x1000			/* active */
+#define	XS_XS_IDLE	0x2000			/* idle wait */
+#define	XS_XS_STOPPED	0x3000			/* stopped */
+#define	XS_XS_SUSP	0x4000			/* suspend pending */
+#define	XS_XE_MASK	0xf0000			/* transmit errors */
+#define	XS_XE_SHIFT	16
+#define	XS_XE_NOERR	0x00000			/* no error */
+#define	XS_XE_DPE	0x10000			/* descriptor protocol error */
+#define	XS_XE_DFU	0x20000			/* data fifo underrun */
+#define	XS_XE_BEBR	0x30000			/* bus error on buffer read */
+#define	XS_XE_BEDA	0x40000			/* bus error on descriptor access */
+#define	XS_AD_MASK	0xfff00000		/* active descriptor */
+#define	XS_AD_SHIFT	20
+
+/* receive channel control */
+#define	RC_RE		((uint32)1 << 0)	/* receive enable */
+#define	RC_RO_MASK	0xfe			/* receive frame offset */
+#define	RC_RO_SHIFT	1
+#define	RC_FM		((uint32)1 << 8)	/* direct fifo receive (pio) mode */
+#define	RC_AE		((uint32)3 << 16)	/* address extension bits */
+#define	RC_AE_SHIFT	16
+
+/* receive descriptor table pointer */
+#define	RP_LD_MASK	0xfff			/* last valid descriptor */
+
+/* receive channel status */
+#define	RS_CD_MASK	0x0fff			/* current descriptor pointer */
+#define	RS_RS_MASK	0xf000			/* receive state */
+#define	RS_RS_SHIFT	12
+#define	RS_RS_DISABLED	0x0000			/* disabled */
+#define	RS_RS_ACTIVE	0x1000			/* active */
+#define	RS_RS_IDLE	0x2000			/* idle wait */
+#define	RS_RS_STOPPED	0x3000			/* reserved */
+#define	RS_RE_MASK	0xf0000			/* receive errors */
+#define	RS_RE_SHIFT	16
+#define	RS_RE_NOERR	0x00000			/* no error */
+#define	RS_RE_DPE	0x10000			/* descriptor protocol error */
+#define	RS_RE_DFO	0x20000			/* data fifo overflow */
+#define	RS_RE_BEBW	0x30000			/* bus error on buffer write */
+#define	RS_RE_BEDA	0x40000			/* bus error on descriptor access */
+#define	RS_AD_MASK	0xfff00000		/* active descriptor */
+#define	RS_AD_SHIFT	20
+
+/* fifoaddr */
+#define	FA_OFF_MASK	0xffff			/* offset */
+#define	FA_SEL_MASK	0xf0000			/* select */
+#define	FA_SEL_SHIFT	16
+#define	FA_SEL_XDD	0x00000			/* transmit dma data */
+#define	FA_SEL_XDP	0x10000			/* transmit dma pointers */
+#define	FA_SEL_RDD	0x40000			/* receive dma data */
+#define	FA_SEL_RDP	0x50000			/* receive dma pointers */
+#define	FA_SEL_XFD	0x80000			/* transmit fifo data */
+#define	FA_SEL_XFP	0x90000			/* transmit fifo pointers */
+#define	FA_SEL_RFD	0xc0000			/* receive fifo data */
+#define	FA_SEL_RFP	0xd0000			/* receive fifo pointers */
+#define	FA_SEL_RSD	0xe0000			/* receive frame status data */
+#define	FA_SEL_RSP	0xf0000			/* receive frame status pointers */
+
+/* descriptor control flags */
+#define	CTRL_BC_MASK	0x1fff			/* buffer byte count */
+#define	CTRL_AE		((uint32)3 << 16)	/* address extension bits */
+#define	CTRL_AE_SHIFT	16
+#define	CTRL_EOT	((uint32)1 << 28)	/* end of descriptor table */
+#define	CTRL_IOC	((uint32)1 << 29)	/* interrupt on completion */
+#define	CTRL_EOF	((uint32)1 << 30)	/* end of frame */
+#define	CTRL_SOF	((uint32)1 << 31)	/* start of frame */
+
+/* control flags in the range [27:20] are core-specific and not defined here */
+#define	CTRL_CORE_MASK	0x0ff00000
+
+/* 64 bits addressing */
+
+/* dma registers per channel(xmt or rcv) */
+typedef volatile struct {
+	uint32	control;		/* enable, et al */
+	uint32	ptr;			/* last descriptor posted to chip */
+	uint32	addrlow;		/* descriptor ring base address low 32-bits (8K aligned) */
+	uint32	addrhigh;		/* descriptor ring base address bits 63:32 (8K aligned) */
+	uint32	status0;		/* current descriptor, xmt state */
+	uint32	status1;		/* active descriptor, xmt error */
+} dma64regs_t;
+
+typedef volatile struct {
+	dma64regs_t	tx;		/* dma64 tx channel */
+	dma64regs_t	rx;		/* dma64 rx channel */
+} dma64regp_t;
+
+typedef volatile struct {		/* diag access */
+	uint32	fifoaddr;		/* diag address */
+	uint32	fifodatalow;		/* low 32bits of data */
+	uint32	fifodatahigh;		/* high 32bits of data */
+	uint32	pad;			/* reserved */
+} dma64diag_t;
+
+/*
+ * DMA Descriptor
+ * Descriptors are only read by the hardware, never written back.
+ */
+typedef volatile struct {
+	uint32	ctrl1;		/* misc control bits & bufcount */
+	uint32	ctrl2;		/* buffer count and address extension */
+	uint32	addrlow;	/* memory address of the date buffer, bits 31:0 */
+	uint32	addrhigh;	/* memory address of the date buffer, bits 63:32 */
+} dma64dd_t;
+
+/*
+ * Each descriptor ring must be 8kB aligned, and fit within a contiguous 8kB physical addresss.
+ */
+#define	D64MAXRINGSZ	8192
+#define	D64RINGALIGN	8192
+#define	D64MAXDD	(D64MAXRINGSZ / sizeof (dma64dd_t))
+
+/* transmit channel control */
+#define	D64_XC_XE		0x00000001	/* transmit enable */
+#define	D64_XC_SE		0x00000002	/* transmit suspend request */
+#define	D64_XC_LE		0x00000004	/* loopback enable */
+#define	D64_XC_FL		0x00000010	/* flush request */
+#define	D64_XC_AE		0x00030000	/* address extension bits */
+#define	D64_XC_AE_SHIFT		16
+
+/* transmit descriptor table pointer */
+#define	D64_XP_LD_MASK		0x00000fff	/* last valid descriptor */
+
+/* transmit channel status */
+#define	D64_XS0_CD_MASK		0x00001fff	/* current descriptor pointer */
+#define	D64_XS0_XS_MASK		0xf0000000     	/* transmit state */
+#define	D64_XS0_XS_SHIFT		28
+#define	D64_XS0_XS_DISABLED	0x00000000	/* disabled */
+#define	D64_XS0_XS_ACTIVE	0x10000000	/* active */
+#define	D64_XS0_XS_IDLE		0x20000000	/* idle wait */
+#define	D64_XS0_XS_STOPPED	0x30000000	/* stopped */
+#define	D64_XS0_XS_SUSP		0x40000000	/* suspend pending */
+
+#define	D64_XS1_AD_MASK		0x0001ffff	/* active descriptor */
+#define	D64_XS1_XE_MASK		0xf0000000     	/* transmit errors */
+#define	D64_XS1_XE_SHIFT		28
+#define	D64_XS1_XE_NOERR	0x00000000	/* no error */
+#define	D64_XS1_XE_DPE		0x10000000	/* descriptor protocol error */
+#define	D64_XS1_XE_DFU		0x20000000	/* data fifo underrun */
+#define	D64_XS1_XE_DTE		0x30000000	/* data transfer error */
+#define	D64_XS1_XE_DESRE	0x40000000	/* descriptor read error */
+#define	D64_XS1_XE_COREE	0x50000000	/* core error */
+
+/* receive channel control */
+#define	D64_RC_RE		0x00000001	/* receive enable */
+#define	D64_RC_RO_MASK		0x000000fe	/* receive frame offset */
+#define	D64_RC_RO_SHIFT		1
+#define	D64_RC_FM		0x00000100	/* direct fifo receive (pio) mode */
+#define	D64_RC_AE		0x00030000	/* address extension bits */
+#define	D64_RC_AE_SHIFT		16
+
+/* receive descriptor table pointer */
+#define	D64_RP_LD_MASK		0x00000fff	/* last valid descriptor */
+
+/* receive channel status */
+#define	D64_RS0_CD_MASK		0x00001fff	/* current descriptor pointer */
+#define	D64_RS0_RS_MASK		0xf0000000     	/* receive state */
+#define	D64_RS0_RS_SHIFT		28
+#define	D64_RS0_RS_DISABLED	0x00000000	/* disabled */
+#define	D64_RS0_RS_ACTIVE	0x10000000	/* active */
+#define	D64_RS0_RS_IDLE		0x20000000	/* idle wait */
+#define	D64_RS0_RS_STOPPED	0x30000000	/* stopped */
+#define	D64_RS0_RS_SUSP		0x40000000	/* suspend pending */
+
+#define	D64_RS1_AD_MASK		0x0001ffff	/* active descriptor */
+#define	D64_RS1_RE_MASK		0xf0000000     	/* receive errors */
+#define	D64_RS1_RE_SHIFT		28
+#define	D64_RS1_RE_NOERR	0x00000000	/* no error */
+#define	D64_RS1_RE_DPO		0x10000000	/* descriptor protocol error */
+#define	D64_RS1_RE_DFU		0x20000000	/* data fifo overflow */
+#define	D64_RS1_RE_DTE		0x30000000	/* data transfer error */
+#define	D64_RS1_RE_DESRE	0x40000000	/* descriptor read error */
+#define	D64_RS1_RE_COREE	0x50000000	/* core error */
+
+/* fifoaddr */
+#define	D64_FA_OFF_MASK		0xffff		/* offset */
+#define	D64_FA_SEL_MASK		0xf0000		/* select */
+#define	D64_FA_SEL_SHIFT	16
+#define	D64_FA_SEL_XDD		0x00000		/* transmit dma data */
+#define	D64_FA_SEL_XDP		0x10000		/* transmit dma pointers */
+#define	D64_FA_SEL_RDD		0x40000		/* receive dma data */
+#define	D64_FA_SEL_RDP		0x50000		/* receive dma pointers */
+#define	D64_FA_SEL_XFD		0x80000		/* transmit fifo data */
+#define	D64_FA_SEL_XFP		0x90000		/* transmit fifo pointers */
+#define	D64_FA_SEL_RFD		0xc0000		/* receive fifo data */
+#define	D64_FA_SEL_RFP		0xd0000		/* receive fifo pointers */
+#define	D64_FA_SEL_RSD		0xe0000		/* receive frame status data */
+#define	D64_FA_SEL_RSP		0xf0000		/* receive frame status pointers */
+
+/* descriptor control flags 1 */
+#define	D64_CTRL1_EOT		((uint32)1 << 28)	/* end of descriptor table */
+#define	D64_CTRL1_IOC		((uint32)1 << 29)	/* interrupt on completion */
+#define	D64_CTRL1_EOF		((uint32)1 << 30)	/* end of frame */
+#define	D64_CTRL1_SOF		((uint32)1 << 31)	/* start of frame */
+
+/* descriptor control flags 2 */
+#define	D64_CTRL2_BC_MASK	0x00007fff	/* buffer byte count mask */
+#define	D64_CTRL2_AE		0x00030000	/* address extension bits */
+#define	D64_CTRL2_AE_SHIFT	16
+
+/* control flags in the range [27:20] are core-specific and not defined here */
+#define	D64_CTRL_CORE_MASK	0x0ff00000
+
+
+#endif	/* _sbhnddma_h_ */