staging: brcm80211: move files only used by brcmsmac into appropriate dir

A number of files in the util subdir are only used by the brcmsmac driver.
Move those files into the brcmsmac subdir instead, and do the necessary
Makefile updates to get the files from the new location.

Cc: devel@linuxdriverproject.org
Cc: linux-wireless@vger.kernel.org
Reviewed-by: Brett Rudley <brudley@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 0 insertions, 1765 deletions

diff --git a/drivers/staging/brcm80211/util/hnddma.c b/drivers/staging/brcm80211/util/hnddma.c
deleted file mode 100644
index 0737fb2dabbe..000000000000
--- a/drivers/staging/brcm80211/util/hnddma.c
+++ /dev/null
@@ -1,1765 +0,0 @@
-/*
- * Copyright (c) 2010 Broadcom Corporation
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
- * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
- * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
- * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/netdevice.h>
-#include <linux/pci.h>
-#include <bcmdefs.h>
-#include <bcmdevs.h>
-#include <hndsoc.h>
-#include <bcmutils.h>
-#include <aiutils.h>
-
-#include <sbhnddma.h>
-#include <hnddma.h>
-
-#if defined(__mips__)
-#include <asm/addrspace.h>
-#endif
-
-#ifdef BRCM_FULLMAC
-#error "hnddma.c shouldn't be needed for FULLMAC"
-#endif
-
-/* debug/trace */
-#ifdef BCMDBG
-#define	DMA_ERROR(args) \
-	do { \
-		if (!(*di->msg_level & 1)) \
-			; \
-		else \
-			printk args; \
-	} while (0)
-#define	DMA_TRACE(args) \
-	do { \
-		if (!(*di->msg_level & 2)) \
-			; \
-		else \
-			printk args; \
-	} while (0)
-#else
-#define	DMA_ERROR(args)
-#define	DMA_TRACE(args)
-#endif				/* BCMDBG */
-
-#define	DMA_NONE(args)
-
-#define d64txregs	dregs.d64_u.txregs_64
-#define d64rxregs	dregs.d64_u.rxregs_64
-#define txd64		dregs.d64_u.txd_64
-#define rxd64		dregs.d64_u.rxd_64
-
-/* default dma message level (if input msg_level pointer is null in dma_attach()) */
-static uint dma_msg_level;
-
-#define	MAXNAMEL	8	/* 8 char names */
-
-#define	DI_INFO(dmah)	((dma_info_t *)dmah)
-
-#define R_SM(r)		(*(r))
-#define W_SM(r, v)	(*(r) = (v))
-
-/* dma engine software state */
-typedef struct dma_info {
-	struct hnddma_pub hnddma; /* exported structure */
-	uint *msg_level;	/* message level pointer */
-	char name[MAXNAMEL];	/* callers name for diag msgs */
-
-	void *pbus;		/* bus handle */
-
-	bool dma64;		/* this dma engine is operating in 64-bit mode */
-	bool addrext;		/* this dma engine supports DmaExtendedAddrChanges */
-
-	union {
-		struct {
-			dma64regs_t *txregs_64;	/* 64-bit dma tx engine registers */
-			dma64regs_t *rxregs_64;	/* 64-bit dma rx engine registers */
-			dma64dd_t *txd_64;	/* pointer to dma64 tx descriptor ring */
-			dma64dd_t *rxd_64;	/* pointer to dma64 rx descriptor ring */
-		} d64_u;
-	} dregs;
-
-	u16 dmadesc_align;	/* alignment requirement for dma descriptors */
-
-	u16 ntxd;		/* # tx descriptors tunable */
-	u16 txin;		/* index of next descriptor to reclaim */
-	u16 txout;		/* index of next descriptor to post */
-	void **txp;		/* pointer to parallel array of pointers to packets */
-	hnddma_seg_map_t *txp_dmah;	/* DMA MAP meta-data handle */
-	dmaaddr_t txdpa;	/* Aligned physical address of descriptor ring */
-	dmaaddr_t txdpaorig;	/* Original physical address of descriptor ring */
-	u16 txdalign;	/* #bytes added to alloc'd mem to align txd */
-	u32 txdalloc;	/* #bytes allocated for the ring */
-	u32 xmtptrbase;	/* When using unaligned descriptors, the ptr register
-				 * is not just an index, it needs all 13 bits to be
-				 * an offset from the addr register.
-				 */
-
-	u16 nrxd;		/* # rx descriptors tunable */
-	u16 rxin;		/* index of next descriptor to reclaim */
-	u16 rxout;		/* index of next descriptor to post */
-	void **rxp;		/* pointer to parallel array of pointers to packets */
-	hnddma_seg_map_t *rxp_dmah;	/* DMA MAP meta-data handle */
-	dmaaddr_t rxdpa;	/* Aligned physical address of descriptor ring */
-	dmaaddr_t rxdpaorig;	/* Original physical address of descriptor ring */
-	u16 rxdalign;	/* #bytes added to alloc'd mem to align rxd */
-	u32 rxdalloc;	/* #bytes allocated for the ring */
-	u32 rcvptrbase;	/* Base for ptr reg when using unaligned descriptors */
-
-	/* tunables */
-	unsigned int rxbufsize;	/* rx buffer size in bytes,
-				 * not including the extra headroom
-				 */
-	uint rxextrahdrroom;	/* extra rx headroom, reverseved to assist upper stack
-				 *  e.g. some rx pkt buffers will be bridged to tx side
-				 *  without byte copying. The extra headroom needs to be
-				 *  large enough to fit txheader needs.
-				 *  Some dongle driver may not need it.
-				 */
-	uint nrxpost;		/* # rx buffers to keep posted */
-	unsigned int 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 */
-	bool aligndesc_4k;	/* descriptor base need to be aligned or not */
-} dma_info_t;
-
-/* DMA Scatter-gather list is supported. Note this is limited to TX direction only */
-#ifdef BCMDMASGLISTOSL
-#define DMASGLIST_ENAB true
-#else
-#define DMASGLIST_ENAB false
-#endif				/* BCMDMASGLISTOSL */
-
-/* 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	PREVRXD(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] */
-
-#define	PCI64ADDR_HIGH		0x80000000	/* address[63] */
-#define	PCI64ADDR_HIGH_SHIFT	31	/* address[63] */
-
-/* Common prototypes */
-static bool _dma_isaddrext(dma_info_t *di);
-static bool _dma_descriptor_align(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, dmaaddr_t pa);
-static void _dma_rxinit(dma_info_t *di);
-static void *_dma_rx(dma_info_t *di);
-static bool _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_rx_param_get(dma_info_t *di, u16 *rxoffset,
-			      u16 *rxbufsize);
-
-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 uint _dma_rxactive(dma_info_t *di);
-static uint _dma_txpending(dma_info_t *di);
-static uint _dma_txcommitted(dma_info_t *di);
-
-static void *_dma_peeknexttxp(dma_info_t *di);
-static void *_dma_peeknextrxp(dma_info_t *di);
-static unsigned long _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);
-static uint _dma_ctrlflags(dma_info_t *di, uint mask, uint flags);
-static u8 dma_align_sizetobits(uint size);
-static void *dma_ringalloc(dma_info_t *di, u32 boundary, uint size,
-			   u16 *alignbits, uint *alloced,
-			   dmaaddr_t *descpa);
-
-/* Prototypes for 64-bit routines */
-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, struct sk_buff *p0, bool commit);
-static int dma64_txunframed(dma_info_t *di, void *p0, uint len, bool commit);
-static void *dma64_getpos(dma_info_t *di, bool direction);
-static void *dma64_getnexttxp(dma_info_t *di, txd_range_t range);
-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, txd_range_t range);
-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(dma64regs_t *dma64regs);
-
-static inline u32 parity32(u32 data);
-
-const 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_txunframed_t) dma64_txunframed,
-	(di_getpos_t) dma64_getpos,
-	(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_peeknextrxp_t) _dma_peeknextrxp,
-	(di_rxparam_get_t) _dma_rx_param_get,
-
-	(di_fifoloopbackenable_t) _dma_fifoloopbackenable,
-	(di_getvar_t) _dma_getvar,
-	(di_counterreset_t) _dma_counterreset,
-	(di_ctrlflags_t) _dma_ctrlflags,
-	NULL,
-	NULL,
-	NULL,
-	(di_rxactive_t) _dma_rxactive,
-	(di_txpending_t) _dma_txpending,
-	(di_txcommitted_t) _dma_txcommitted,
-	39
-};
-
-struct hnddma_pub *dma_attach(char *name, si_t *sih,
-		     void *dmaregstx, void *dmaregsrx, uint ntxd,
-		     uint nrxd, uint rxbufsize, int rxextheadroom,
-		     uint nrxpost, uint rxoffset, uint *msg_level)
-{
-	dma_info_t *di;
-	uint size;
-
-	/* allocate private info structure */
-	di = kzalloc(sizeof(dma_info_t), GFP_ATOMIC);
-	if (di == NULL) {
-#ifdef BCMDBG
-		printk(KERN_ERR "dma_attach: out of memory\n");
-#endif
-		return NULL;
-	}
-
-	di->msg_level = msg_level ? msg_level : &dma_msg_level;
-
-
-	di->dma64 = ((ai_core_sflags(sih, 0, 0) & SISF_DMA64) == SISF_DMA64);
-
-	/* init dma reg pointer */
-	di->d64txregs = (dma64regs_t *) dmaregstx;
-	di->d64rxregs = (dma64regs_t *) dmaregsrx;
-	di->hnddma.di_fn = (const di_fcn_t *)&dma64proc;
-
-	/* Default flags (which can be changed by the driver calling dma_ctrlflags
-	 * before enable): For backwards compatibility both Rx Overflow Continue
-	 * and Parity are DISABLED.
-	 * supports it.
-	 */
-	di->hnddma.di_fn->ctrlflags(&di->hnddma, DMA_CTRL_ROC | DMA_CTRL_PEN,
-				    0);
-
-	DMA_TRACE(("%s: dma_attach: %s flags 0x%x ntxd %d nrxd %d "
-		   "rxbufsize %d rxextheadroom %d nrxpost %d rxoffset %d "
-		   "dmaregstx %p dmaregsrx %p\n", name, "DMA64",
-		   di->hnddma.dmactrlflags, ntxd, nrxd, rxbufsize,
-		   rxextheadroom, nrxpost, rxoffset, dmaregstx, dmaregsrx));
-
-	/* make a private copy of our callers name */
-	strncpy(di->name, name, MAXNAMEL);
-	di->name[MAXNAMEL - 1] = '\0';
-
-	di->pbus = ((struct si_info *)sih)->pbus;
-
-	/* save tunables */
-	di->ntxd = (u16) ntxd;
-	di->nrxd = (u16) nrxd;
-
-	/* the actual dma size doesn't include the extra headroom */
-	di->rxextrahdrroom =
-	    (rxextheadroom == -1) ? BCMEXTRAHDROOM : rxextheadroom;
-	if (rxbufsize > BCMEXTRAHDROOM)
-		di->rxbufsize = (u16) (rxbufsize - di->rxextrahdrroom);
-	else
-		di->rxbufsize = (u16) rxbufsize;
-
-	di->nrxpost = (u16) nrxpost;
-	di->rxoffset = (u8) rxoffset;
-
-	/*
-	 * figure out the DMA physical address offset for dd and data
-	 *     PCI/PCIE: they map silicon backplace address to zero based memory, need offset
-	 *     Other bus: use zero
-	 *     SI_BUS BIGENDIAN kludge: use sdram swapped region for data buffer, not descriptor
-	 */
-	di->ddoffsetlow = 0;
-	di->dataoffsetlow = 0;
-	/* for pci bus, add offset */
-	if (sih->bustype == PCI_BUS) {
-		/* pcie with DMA64 */
-		di->ddoffsetlow = 0;
-		di->ddoffsethigh = SI_PCIE_DMA_H32;
-		di->dataoffsetlow = di->ddoffsetlow;
-		di->dataoffsethigh = di->ddoffsethigh;
-	}
-#if defined(__mips__) && defined(IL_BIGENDIAN)
-	di->dataoffsetlow = di->dataoffsetlow + SI_SDRAM_SWAPPED;
-#endif				/* defined(__mips__) && defined(IL_BIGENDIAN) */
-	/* WAR64450 : DMACtl.Addr ext fields are not supported in SDIOD core. */
-	if ((ai_coreid(sih) == SDIOD_CORE_ID)
-	    && ((ai_corerev(sih) > 0) && (ai_corerev(sih) <= 2)))
-		di->addrext = 0;
-	else if ((ai_coreid(sih) == I2S_CORE_ID) &&
-		 ((ai_corerev(sih) == 0) || (ai_corerev(sih) == 1)))
-		di->addrext = 0;
-	else
-		di->addrext = _dma_isaddrext(di);
-
-	/* does the descriptors need to be aligned and if yes, on 4K/8K or not */
-	di->aligndesc_4k = _dma_descriptor_align(di);
-	if (di->aligndesc_4k) {
-		di->dmadesc_align = D64RINGALIGN_BITS;
-		if ((ntxd < D64MAXDD / 2) && (nrxd < D64MAXDD / 2)) {
-			/* for smaller dd table, HW relax alignment reqmnt */
-			di->dmadesc_align = D64RINGALIGN_BITS - 1;
-		}
-	} else
-		di->dmadesc_align = 4;	/* 16 byte alignment */
-
-	DMA_NONE(("DMA descriptor align_needed %d, align %d\n",
-		  di->aligndesc_4k, di->dmadesc_align));
-
-	/* allocate tx packet pointer vector */
-	if (ntxd) {
-		size = ntxd * sizeof(void *);
-		di->txp = kzalloc(size, GFP_ATOMIC);
-		if (di->txp == NULL) {
-			DMA_ERROR(("%s: dma_attach: out of tx memory\n", di->name));
-			goto fail;
-		}
-	}
-
-	/* allocate rx packet pointer vector */
-	if (nrxd) {
-		size = nrxd * sizeof(void *);
-		di->rxp = kzalloc(size, GFP_ATOMIC);
-		if (di->rxp == NULL) {
-			DMA_ERROR(("%s: dma_attach: out of rx memory\n", di->name));
-			goto fail;
-		}
-	}
-
-	/* 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 != 0) && !di->addrext) {
-		if (PHYSADDRLO(di->txdpa) > SI_PCI_DMA_SZ) {
-			DMA_ERROR(("%s: dma_attach: txdpa 0x%x: addrext not supported\n", di->name, (u32) PHYSADDRLO(di->txdpa)));
-			goto fail;
-		}
-		if (PHYSADDRLO(di->rxdpa) > SI_PCI_DMA_SZ) {
-			DMA_ERROR(("%s: dma_attach: rxdpa 0x%x: addrext not supported\n", di->name, (u32) PHYSADDRLO(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 DMA mapping vectors */
-	if (DMASGLIST_ENAB) {
-		if (ntxd) {
-			size = ntxd * sizeof(hnddma_seg_map_t);
-			di->txp_dmah = kzalloc(size, GFP_ATOMIC);
-			if (di->txp_dmah == NULL)
-				goto fail;
-		}
-
-		if (nrxd) {
-			size = nrxd * sizeof(hnddma_seg_map_t);
-			di->rxp_dmah = kzalloc(size, GFP_ATOMIC);
-			if (di->rxp_dmah == NULL)
-				goto fail;
-		}
-	}
-
-	return (struct hnddma_pub *) di;
-
- fail:
-	_dma_detach(di);
-	return NULL;
-}
-
-/* Check for odd number of 1's */
-static inline u32 parity32(u32 data)
-{
-	data ^= data >> 16;
-	data ^= data >> 8;
-	data ^= data >> 4;
-	data ^= data >> 2;
-	data ^= data >> 1;
-
-	return data & 1;
-}
-
-#define DMA64_DD_PARITY(dd)  parity32((dd)->addrlow ^ (dd)->addrhigh ^ (dd)->ctrl1 ^ (dd)->ctrl2)
-
-static inline void
-dma64_dd_upd(dma_info_t *di, dma64dd_t *ddring, dmaaddr_t pa, uint outidx,
-	     u32 *flags, u32 bufcount)
-{
-	u32 ctrl2 = bufcount & D64_CTRL2_BC_MASK;
-
-	/* PCI bus with big(>1G) physical address, use address extension */
-#if defined(__mips__) && defined(IL_BIGENDIAN)
-	if ((di->dataoffsetlow == SI_SDRAM_SWAPPED)
-	    || !(PHYSADDRLO(pa) & PCI32ADDR_HIGH)) {
-#else
-	if ((di->dataoffsetlow == 0) || !(PHYSADDRLO(pa) & PCI32ADDR_HIGH)) {
-#endif				/* defined(__mips__) && defined(IL_BIGENDIAN) */
-
-		W_SM(&ddring[outidx].addrlow,
-		     BUS_SWAP32(PHYSADDRLO(pa) + di->dataoffsetlow));
-		W_SM(&ddring[outidx].addrhigh,
-		     BUS_SWAP32(PHYSADDRHI(pa) + di->dataoffsethigh));
-		W_SM(&ddring[outidx].ctrl1, BUS_SWAP32(*flags));
-		W_SM(&ddring[outidx].ctrl2, BUS_SWAP32(ctrl2));
-	} else {
-		/* address extension for 32-bit PCI */
-		u32 ae;
-
-		ae = (PHYSADDRLO(pa) & PCI32ADDR_HIGH) >> PCI32ADDR_HIGH_SHIFT;
-		PHYSADDRLO(pa) &= ~PCI32ADDR_HIGH;
-
-		ctrl2 |= (ae << D64_CTRL2_AE_SHIFT) & D64_CTRL2_AE;
-		W_SM(&ddring[outidx].addrlow,
-		     BUS_SWAP32(PHYSADDRLO(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));
-	}
-	if (di->hnddma.dmactrlflags & DMA_CTRL_PEN) {
-		if (DMA64_DD_PARITY(&ddring[outidx])) {
-			W_SM(&ddring[outidx].ctrl2,
-			     BUS_SWAP32(ctrl2 | D64_CTRL2_PARITY));
-		}
-	}
-}
-
-static bool _dma_alloc(dma_info_t *di, uint direction)
-{
-	return dma64_alloc(di, direction);
-}
-
-void *dma_alloc_consistent(struct pci_dev *pdev, uint size, u16 align_bits,
-			       uint *alloced, unsigned long *pap)
-{
-	if (align_bits) {
-		u16 align = (1 << align_bits);
-		if (!IS_ALIGNED(PAGE_SIZE, align))
-			size += align;
-		*alloced = size;
-	}
-	return pci_alloc_consistent(pdev, size, (dma_addr_t *) pap);
-}
-
-/* !! may be called with core in reset */
-static void _dma_detach(dma_info_t *di)
-{
-
-	DMA_TRACE(("%s: dma_detach\n", di->name));
-
-	/* free dma descriptor rings */
-	if (di->txd64)
-		pci_free_consistent(di->pbus, di->txdalloc,
-				    ((s8 *)di->txd64 - di->txdalign),
-				    (di->txdpaorig));
-	if (di->rxd64)
-		pci_free_consistent(di->pbus, di->rxdalloc,
-				    ((s8 *)di->rxd64 - di->rxdalign),
-				    (di->rxdpaorig));
-
-	/* free packet pointer vectors */
-	kfree(di->txp);
-	kfree(di->rxp);
-
-	/* free tx packet DMA handles */
-	kfree(di->txp_dmah);
-
-	/* free rx packet DMA handles */
-	kfree(di->rxp_dmah);
-
-	/* free our private info structure */
-	kfree(di);
-
-}
-
-static bool _dma_descriptor_align(dma_info_t *di)
-{
-	u32 addrl;
-
-	/* Check to see if the descriptors need to be aligned on 4K/8K or not */
-	if (di->d64txregs != NULL) {
-		W_REG(&di->d64txregs->addrlow, 0xff0);
-		addrl = R_REG(&di->d64txregs->addrlow);
-		if (addrl != 0)
-			return false;
-	} else if (di->d64rxregs != NULL) {
-		W_REG(&di->d64rxregs->addrlow, 0xff0);
-		addrl = R_REG(&di->d64rxregs->addrlow);
-		if (addrl != 0)
-			return false;
-	}
-	return true;
-}
-
-/* return true if this dma engine supports DmaExtendedAddrChanges, otherwise false */
-static bool _dma_isaddrext(dma_info_t *di)
-{
-	/* DMA64 supports full 32- or 64-bit operation. AE is always valid */
-
-	/* not all tx or rx channel are available */
-	if (di->d64txregs != NULL) {
-		if (!_dma64_addrext(di->d64txregs)) {
-			DMA_ERROR(("%s: _dma_isaddrext: DMA64 tx doesn't have "
-				   "AE set\n", di->name));
-		}
-		return true;
-	} else if (di->d64rxregs != NULL) {
-		if (!_dma64_addrext(di->d64rxregs)) {
-			DMA_ERROR(("%s: _dma_isaddrext: DMA64 rx doesn't have "
-				   "AE set\n", di->name));
-		}
-		return true;
-	}
-	return false;
-}
-
-/* initialize descriptor table base address */
-static void _dma_ddtable_init(dma_info_t *di, uint direction, dmaaddr_t pa)
-{
-	if (!di->aligndesc_4k) {
-		if (direction == DMA_TX)
-			di->xmtptrbase = PHYSADDRLO(pa);
-		else
-			di->rcvptrbase = PHYSADDRLO(pa);
-	}
-
-	if ((di->ddoffsetlow == 0)
-	    || !(PHYSADDRLO(pa) & PCI32ADDR_HIGH)) {
-		if (direction == DMA_TX) {
-			W_REG(&di->d64txregs->addrlow,
-			      (PHYSADDRLO(pa) + di->ddoffsetlow));
-			W_REG(&di->d64txregs->addrhigh,
-			      (PHYSADDRHI(pa) + di->ddoffsethigh));
-		} else {
-			W_REG(&di->d64rxregs->addrlow,
-			      (PHYSADDRLO(pa) + di->ddoffsetlow));
-			W_REG(&di->d64rxregs->addrhigh,
-				(PHYSADDRHI(pa) + di->ddoffsethigh));
-		}
-	} else {
-		/* DMA64 32bits address extension */
-		u32 ae;
-
-		/* shift the high bit(s) from pa to ae */
-		ae = (PHYSADDRLO(pa) & PCI32ADDR_HIGH) >>
-		    PCI32ADDR_HIGH_SHIFT;
-		PHYSADDRLO(pa) &= ~PCI32ADDR_HIGH;
-
-		if (direction == DMA_TX) {
-			W_REG(&di->d64txregs->addrlow,
-			      (PHYSADDRLO(pa) + di->ddoffsetlow));
-			W_REG(&di->d64txregs->addrhigh,
-			      di->ddoffsethigh);
-			SET_REG(&di->d64txregs->control,
-				D64_XC_AE, (ae << D64_XC_AE_SHIFT));
-		} else {
-			W_REG(&di->d64rxregs->addrlow,
-			      (PHYSADDRLO(pa) + di->ddoffsetlow));
-			W_REG(&di->d64rxregs->addrhigh,
-			      di->ddoffsethigh);
-			SET_REG(&di->d64rxregs->control,
-				D64_RC_AE, (ae << D64_RC_AE_SHIFT));
-		}
-	}
-}
-
-static void _dma_fifoloopbackenable(dma_info_t *di)
-{
-	DMA_TRACE(("%s: dma_fifoloopbackenable\n", di->name));
-
-	OR_REG(&di->d64txregs->control, D64_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 */
-	memset((void *)di->rxd64, '\0',
-		(di->nrxd * sizeof(dma64dd_t)));
-
-	/* DMA engine with out alignment requirement requires table to be inited
-	 * before enabling the engine
-	 */
-	if (!di->aligndesc_4k)
-		_dma_ddtable_init(di, DMA_RX, di->rxdpa);
-
-	_dma_rxenable(di);
-
-	if (di->aligndesc_4k)
-		_dma_ddtable_init(di, DMA_RX, di->rxdpa);
-}
-
-static void _dma_rxenable(dma_info_t *di)
-{
-	uint dmactrlflags = di->hnddma.dmactrlflags;
-	u32 control;
-
-	DMA_TRACE(("%s: dma_rxenable\n", di->name));
-
-	control =
-	    (R_REG(&di->d64rxregs->control) & D64_RC_AE) |
-	    D64_RC_RE;
-
-	if ((dmactrlflags & DMA_CTRL_PEN) == 0)
-		control |= D64_RC_PD;
-
-	if (dmactrlflags & DMA_CTRL_ROC)
-		control |= D64_RC_OC;
-
-	W_REG(&di->d64rxregs->control,
-		((di->rxoffset << D64_RC_RO_SHIFT) | control));
-}
-
-static void
-_dma_rx_param_get(dma_info_t *di, u16 *rxoffset, u16 *rxbufsize)
-{
-	/* the normal values fit into 16 bits */
-	*rxoffset = (u16) di->rxoffset;
-	*rxbufsize = (u16) di->rxbufsize;
-}
-
-/* !! rx entry routine
- * returns a pointer to the next frame received, or NULL if there are no more
- *   if DMA_CTRL_RXMULTI is defined, DMA scattering(multiple buffers) is supported
- *      with pkts chain
- *   otherwise, it's treated as giant pkt and will be tossed.
- *   The DMA scattering starts with normal DMA header, followed by first buffer data.
- *   After it reaches the max size of buffer, the data continues in next DMA descriptor
- *   buffer WITHOUT DMA header
- */
-static void *BCMFASTPATH _dma_rx(dma_info_t *di)
-{
-	struct sk_buff *p, *head, *tail;
-	uint len;
-	uint pkt_len;
-	int resid = 0;
-
- next_frame:
-	head = _dma_getnextrxp(di, false);
-	if (head == NULL)
-		return NULL;
-
-	len = le16_to_cpu(*(u16 *) (head->data));
-	DMA_TRACE(("%s: dma_rx len %d\n", di->name, len));
-
-#if defined(__mips__)
-#define OSL_UNCACHED(va)        ((void *)KSEG1ADDR((va)))
-	if (!len) {
-		while (!(len = *(u16 *) OSL_UNCACHED(head->data)))
-			udelay(1);
-
-		*(u16 *) (head->data) = cpu_to_le16((u16) len);
-	}
-#endif				/* defined(__mips__) */
-
-	/* set actual length */
-	pkt_len = min((di->rxoffset + len), di->rxbufsize);
-	__skb_trim(head, pkt_len);
-	resid = len - (di->rxbufsize - di->rxoffset);
-
-	/* check for single or multi-buffer rx */
-	if (resid > 0) {
-		tail = head;
-		while ((resid > 0) && (p = _dma_getnextrxp(di, false))) {
-			tail->next = p;
-			pkt_len = min(resid, (int)di->rxbufsize);
-			__skb_trim(p, pkt_len);
-
-			tail = p;
-			resid -= di->rxbufsize;
-		}
-
-#ifdef BCMDBG
-		if (resid > 0) {
-			uint cur;
-			cur =
-			    B2I(((R_REG(&di->d64rxregs->status0) &
-				  D64_RS0_CD_MASK) -
-				 di->rcvptrbase) & D64_RS0_CD_MASK,
-				dma64dd_t);
-			DMA_ERROR(("_dma_rx, rxin %d rxout %d, hw_curr %d\n",
-				   di->rxin, di->rxout, cur));
-		}
-#endif				/* BCMDBG */
-
-		if ((di->hnddma.dmactrlflags & DMA_CTRL_RXMULTI) == 0) {
-			DMA_ERROR(("%s: dma_rx: bad frame length (%d)\n",
-				   di->name, len));
-			pkt_buf_free_skb(head);
-			di->hnddma.rxgiants++;
-			goto next_frame;
-		}
-	}
-
-	return head;
-}
-
-/* post receive buffers
- *  return false is refill failed completely and ring is empty
- *  this will stall the rx dma and user might want to call rxfill again asap
- *  This unlikely happens on memory-rich NIC, but often on memory-constrained dongle
- */
-static bool BCMFASTPATH _dma_rxfill(dma_info_t *di)
-{
-	struct sk_buff *p;
-	u16 rxin, rxout;
-	u32 flags = 0;
-	uint n;
-	uint i;
-	dmaaddr_t pa;
-	uint extra_offset = 0;
-	bool ring_empty;
-
-	ring_empty = false;
-
-	/*
-	 * 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 = di->rxextrahdrroom;
-
-	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
-		 */
-
-		p = pkt_buf_get_skb(di->rxbufsize + extra_offset);
-
-		if (p == NULL) {
-			DMA_ERROR(("%s: dma_rxfill: out of rxbufs\n",
-				   di->name));
-			if (i == 0 && dma64_rxidle(di)) {
-				DMA_ERROR(("%s: rxfill64: ring is empty !\n",
-					   di->name));
-				ring_empty = true;
-			}
-			di->hnddma.rxnobuf++;
-			break;
-		}
-		/* reserve an extra headroom, if applicable */
-		if (extra_offset)
-			skb_pull(p, extra_offset);
-
-		/* Do a cached write instead of uncached write since DMA_MAP
-		 * will flush the cache.
-		 */
-		*(u32 *) (p->data) = 0;
-
-		if (DMASGLIST_ENAB)
-			memset(&di->rxp_dmah[rxout], 0,
-				sizeof(hnddma_seg_map_t));
-
-		pa = pci_map_single(di->pbus, p->data,
-			di->rxbufsize, PCI_DMA_FROMDEVICE);
-
-		/* save the free packet pointer */
-		di->rxp[rxout] = p;
-
-		/* reset flags for each descriptor */
-		flags = 0;
-		if (rxout == (di->nrxd - 1))
-			flags = D64_CTRL1_EOT;
-
-		dma64_dd_upd(di, di->rxd64, pa, rxout, &flags,
-			     di->rxbufsize);
-		rxout = NEXTRXD(rxout);
-	}
-
-	di->rxout = rxout;
-
-	/* update the chip lastdscr pointer */
-	W_REG(&di->d64rxregs->ptr,
-	      di->rcvptrbase + I2B(rxout, dma64dd_t));
-
-	return ring_empty;
-}
-
-/* like getnexttxp but no reclaim */
-static void *_dma_peeknexttxp(dma_info_t *di)
-{
-	uint end, i;
-
-	if (di->ntxd == 0)
-		return NULL;
-
-	end =
-	    B2I(((R_REG(&di->d64txregs->status0) &
-		  D64_XS0_CD_MASK) - di->xmtptrbase) & D64_XS0_CD_MASK,
-		  dma64dd_t);
-
-	for (i = di->txin; i != end; i = NEXTTXD(i))
-		if (di->txp[i])
-			return di->txp[i];
-
-	return NULL;
-}
-
-/* like getnextrxp but not take off the ring */
-static void *_dma_peeknextrxp(dma_info_t *di)
-{
-	uint end, i;
-
-	if (di->nrxd == 0)
-		return NULL;
-
-	end =
-	    B2I(((R_REG(&di->d64rxregs->status0) &
-		  D64_RS0_CD_MASK) - di->rcvptrbase) & D64_RS0_CD_MASK,
-		  dma64dd_t);
-
-	for (i = di->rxin; i != end; i = NEXTRXD(i))
-		if (di->rxp[i])
-			return di->rxp[i];
-
-	return NULL;
-}
-
-static void _dma_rxreclaim(dma_info_t *di)
-{
-	void *p;
-
-	DMA_TRACE(("%s: dma_rxreclaim\n", di->name));
-
-	while ((p = _dma_getnextrxp(di, true)))
-		pkt_buf_free_skb(p);
-}
-
-static void *BCMFASTPATH _dma_getnextrxp(dma_info_t *di, bool forceall)
-{
-	if (di->nrxd == 0)
-		return NULL;
-
-	return dma64_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 uint _dma_txpending(dma_info_t *di)
-{
-	uint curr;
-
-	curr =
-	    B2I(((R_REG(&di->d64txregs->status0) &
-		  D64_XS0_CD_MASK) - di->xmtptrbase) & D64_XS0_CD_MASK,
-		  dma64dd_t);
-
-	return NTXDACTIVE(curr, di->txout);
-}
-
-static uint _dma_txcommitted(dma_info_t *di)
-{
-	uint ptr;
-	uint txin = di->txin;
-
-	if (txin == di->txout)
-		return 0;
-
-	ptr = B2I(R_REG(&di->d64txregs->ptr), dma64dd_t);
-
-	return NTXDACTIVE(di->txin, ptr);
-}
-
-static uint _dma_rxactive(dma_info_t *di)
-{
-	return NRXDACTIVE(di->rxin, di->rxout);
-}
-
-static void _dma_counterreset(dma_info_t *di)
-{
-	/* reset all software counter */
-	di->hnddma.rxgiants = 0;
-	di->hnddma.rxnobuf = 0;
-	di->hnddma.txnobuf = 0;
-}
-
-static uint _dma_ctrlflags(dma_info_t *di, uint mask, uint flags)
-{
-	uint dmactrlflags = di->hnddma.dmactrlflags;
-
-	if (di == NULL) {
-		DMA_ERROR(("%s: _dma_ctrlflags: NULL dma handle\n", di->name));
-		return 0;
-	}
-
-	dmactrlflags &= ~mask;
-	dmactrlflags |= flags;
-
-	/* If trying to enable parity, check if parity is actually supported */
-	if (dmactrlflags & DMA_CTRL_PEN) {
-		u32 control;
-
-		control = R_REG(&di->d64txregs->control);
-		W_REG(&di->d64txregs->control,
-		      control | D64_XC_PD);
-		if (R_REG(&di->d64txregs->control) & D64_XC_PD) {
-			/* We *can* disable it so it is supported,
-			 * restore control register
-			 */
-			W_REG(&di->d64txregs->control,
-			control);
-		} else {
-			/* Not supported, don't allow it to be enabled */
-			dmactrlflags &= ~DMA_CTRL_PEN;
-		}
-	}
-
-	di->hnddma.dmactrlflags = dmactrlflags;
-
-	return dmactrlflags;
-}
-
-/* get the address of the var in order to change later */
-static unsigned long _dma_getvar(dma_info_t *di, const char *name)
-{
-	if (!strcmp(name, "&txavail"))
-		return (unsigned long)&(di->hnddma.txavail);
-	return 0;
-}
-
-static
-u8 dma_align_sizetobits(uint size)
-{
-	u8 bitpos = 0;
-	while (size >>= 1) {
-		bitpos++;
-	}
-	return bitpos;
-}
-
-/* This function ensures that the DMA descriptor ring will not get allocated
- * across Page boundary. If the allocation is done across the page boundary
- * at the first time, then it is freed and the allocation is done at
- * descriptor ring size aligned location. This will ensure that the ring will
- * not cross page boundary
- */
-static void *dma_ringalloc(dma_info_t *di, u32 boundary, uint size,
-			   u16 *alignbits, uint *alloced,
-			   dmaaddr_t *descpa)
-{
-	void *va;
-	u32 desc_strtaddr;
-	u32 alignbytes = 1 << *alignbits;
-
-	va = dma_alloc_consistent(di->pbus, size, *alignbits, alloced, descpa);
-
-	if (NULL == va)
-		return NULL;
-
-	desc_strtaddr = (u32) roundup((unsigned long)va, alignbytes);
-	if (((desc_strtaddr + size - 1) & boundary) != (desc_strtaddr
-							& boundary)) {
-		*alignbits = dma_align_sizetobits(size);
-		pci_free_consistent(di->pbus, size, va, *descpa);
-		va = dma_alloc_consistent(di->pbus, size, *alignbits,
-			alloced, descpa);
-	}
-	return va;
-}
-
-/* 64-bit DMA functions */
-
-static void dma64_txinit(dma_info_t *di)
-{
-	u32 control = D64_XC_XE;
-
-	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 */
-	memset((void *)di->txd64, '\0', (di->ntxd * sizeof(dma64dd_t)));
-
-	/* DMA engine with out alignment requirement requires table to be inited
-	 * before enabling the engine
-	 */
-	if (!di->aligndesc_4k)
-		_dma_ddtable_init(di, DMA_TX, di->txdpa);
-
-	if ((di->hnddma.dmactrlflags & DMA_CTRL_PEN) == 0)
-		control |= D64_XC_PD;
-	OR_REG(&di->d64txregs->control, control);
-
-	/* DMA engine with alignment requirement requires table to be inited
-	 * before enabling the engine
-	 */
-	if (di->aligndesc_4k)
-		_dma_ddtable_init(di, DMA_TX, di->txdpa);
-}
-
-static bool dma64_txenabled(dma_info_t *di)
-{
-	u32 xc;
-
-	/* If the chip is dead, it is not enabled :-) */
-	xc = R_REG(&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->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->d64txregs->control, ~D64_XC_SE);
-}
-
-static bool dma64_txsuspended(dma_info_t *di)
-{
-	return (di->ntxd == 0) ||
-	    ((R_REG(&di->d64txregs->control) & D64_XC_SE) ==
-	     D64_XC_SE);
-}
-
-static void BCMFASTPATH dma64_txreclaim(dma_info_t *di, txd_range_t range)
-{
-	void *p;
-
-	DMA_TRACE(("%s: dma_txreclaim %s\n", di->name,
-		   (range == HNDDMA_RANGE_ALL) ? "all" :
-		   ((range ==
-		     HNDDMA_RANGE_TRANSMITTED) ? "transmitted" :
-		    "transferred")));
-
-	if (di->txin == di->txout)
-		return;
-
-	while ((p = dma64_getnexttxp(di, range))) {
-		/* For unframed data, we don't have any packets to free */
-		if (!(di->hnddma.dmactrlflags & DMA_CTRL_UNFRAMED))
-			pkt_buf_free_skb(p);
-	}
-}
-
-static bool dma64_txstopped(dma_info_t *di)
-{
-	return ((R_REG(&di->d64txregs->status0) & D64_XS0_XS_MASK) ==
-		D64_XS0_XS_STOPPED);
-}
-
-static bool dma64_rxstopped(dma_info_t *di)
-{
-	return ((R_REG(&di->d64rxregs->status0) & D64_RS0_RS_MASK) ==
-		D64_RS0_RS_STOPPED);
-}
-
-static bool dma64_alloc(dma_info_t *di, uint direction)
-{
-	u16 size;
-	uint ddlen;
-	void *va;
-	uint alloced = 0;
-	u16 align;
-	u16 align_bits;
-
-	ddlen = sizeof(dma64dd_t);
-
-	size = (direction == DMA_TX) ? (di->ntxd * ddlen) : (di->nrxd * ddlen);
-	align_bits = di->dmadesc_align;
-	align = (1 << align_bits);
-
-	if (direction == DMA_TX) {
-		va = dma_ringalloc(di, D64RINGALIGN, size, &align_bits,
-			&alloced, &di->txdpaorig);
-		if (va == NULL) {
-			DMA_ERROR(("%s: dma64_alloc: DMA_ALLOC_CONSISTENT(ntxd) failed\n", di->name));
-			return false;
-		}
-		align = (1 << align_bits);
-		di->txd64 = (dma64dd_t *) roundup((unsigned long)va, align);
-		di->txdalign = (uint) ((s8 *)di->txd64 - (s8 *) va);
-		PHYSADDRLOSET(di->txdpa,
-			      PHYSADDRLO(di->txdpaorig) + di->txdalign);
-		PHYSADDRHISET(di->txdpa, PHYSADDRHI(di->txdpaorig));
-		di->txdalloc = alloced;
-	} else {
-		va = dma_ringalloc(di, D64RINGALIGN, size, &align_bits,
-			&alloced, &di->rxdpaorig);
-		if (va == NULL) {
-			DMA_ERROR(("%s: dma64_alloc: DMA_ALLOC_CONSISTENT(nrxd) failed\n", di->name));
-			return false;
-		}
-		align = (1 << align_bits);
-		di->rxd64 = (dma64dd_t *) roundup((unsigned long)va, align);
-		di->rxdalign = (uint) ((s8 *)di->rxd64 - (s8 *) va);
-		PHYSADDRLOSET(di->rxdpa,
-			      PHYSADDRLO(di->rxdpaorig) + di->rxdalign);
-		PHYSADDRHISET(di->rxdpa, PHYSADDRHI(di->rxdpaorig));
-		di->rxdalloc = alloced;
-	}
-
-	return true;
-}
-
-static bool dma64_txreset(dma_info_t *di)
-{
-	u32 status;
-
-	if (di->ntxd == 0)
-		return true;
-
-	/* suspend tx DMA first */
-	W_REG(&di->d64txregs->control, D64_XC_SE);
-	SPINWAIT(((status =
-		   (R_REG(&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->d64txregs->control, 0);
-	SPINWAIT(((status =
-		   (R_REG(&di->d64txregs->status0) & D64_XS0_XS_MASK))
-		  != D64_XS0_XS_DISABLED), 10000);
-
-	/* wait for the last transaction to complete */
-	udelay(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->d64rxregs->status0) & D64_RS0_CD_MASK) ==
-		(R_REG(&di->d64rxregs->ptr) & D64_RS0_CD_MASK));
-}
-
-static bool dma64_rxreset(dma_info_t *di)
-{
-	u32 status;
-
-	if (di->nrxd == 0)
-		return true;
-
-	W_REG(&di->d64rxregs->control, 0);
-	SPINWAIT(((status =
-		   (R_REG(&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)
-{
-	u32 rc;
-
-	rc = R_REG(&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->d64txregs->control) & D64_XC_SE))
-		return 0;
-
-	if ((R_REG(&di->d64txregs->status0) & D64_XS0_XS_MASK) ==
-	    D64_XS0_XS_IDLE)
-		return 1;
-
-	return 0;
-}
-
-/* Useful when sending unframed data.  This allows us to get a progress report from the DMA.
- * We return a pointer to the beginning of the DATA buffer of the current descriptor.
- * If DMA is idle, we return NULL.
- */
-static void *dma64_getpos(dma_info_t *di, bool direction)
-{
-	void *va;
-	bool idle;
-	u32 cd_offset;
-
-	if (direction == DMA_TX) {
-		cd_offset =
-		    R_REG(&di->d64txregs->status0) & D64_XS0_CD_MASK;
-		idle = !NTXDACTIVE(di->txin, di->txout);
-		va = di->txp[B2I(cd_offset, dma64dd_t)];
-	} else {
-		cd_offset =
-		    R_REG(&di->d64rxregs->status0) & D64_XS0_CD_MASK;
-		idle = !NRXDACTIVE(di->rxin, di->rxout);
-		va = di->rxp[B2I(cd_offset, dma64dd_t)];
-	}
-
-	/* If DMA is IDLE, return NULL */
-	if (idle) {
-		DMA_TRACE(("%s: DMA idle, return NULL\n", __func__));
-		va = NULL;
-	}
-
-	return va;
-}
-
-/* TX of unframed data
- *
- * Adds a DMA ring descriptor for the data pointed to by "buf".
- * This is for DMA of a buffer of data and is unlike other hnddma TX functions
- * that take a pointer to a "packet"
- * Each call to this is results in a single descriptor being added for "len" bytes of
- * data starting at "buf", it doesn't handle chained buffers.
- */
-static int dma64_txunframed(dma_info_t *di, void *buf, uint len, bool commit)
-{
-	u16 txout;
-	u32 flags = 0;
-	dmaaddr_t pa;		/* phys addr */
-
-	txout = di->txout;
-
-	/* return nonzero if out of tx descriptors */
-	if (NEXTTXD(txout) == di->txin)
-		goto outoftxd;
-
-	if (len == 0)
-		return 0;
-
-	pa = pci_map_single(di->pbus, buf, len, PCI_DMA_TODEVICE);
-
-	flags = (D64_CTRL1_SOF | 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);
-
-	/* save the buffer pointer - used by dma_getpos */
-	di->txp[txout] = buf;
-
-	txout = NEXTTXD(txout);
-	/* bump the tx descriptor index */
-	di->txout = txout;
-
-	/* kick the chip */
-	if (commit) {
-		W_REG(&di->d64txregs->ptr,
-		      di->xmtptrbase + I2B(txout, dma64dd_t));
-	}
-
-	/* tx flow control */
-	di->hnddma.txavail = di->ntxd - NTXDACTIVE(di->txin, di->txout) - 1;
-
-	return 0;
-
- outoftxd:
-	DMA_ERROR(("%s: %s: out of txds !!!\n", di->name, __func__));
-	di->hnddma.txavail = 0;
-	di->hnddma.txnobuf++;
-	return -1;
-}
-
-/* !! tx entry routine
- * WARNING: call must check the return value for error.
- *   the error(toss frames) could be fatal and cause many subsequent hard to debug problems
- */
-static int BCMFASTPATH dma64_txfast(dma_info_t *di, struct sk_buff *p0,
-				    bool commit)
-{
-	struct sk_buff *p, *next;
-	unsigned char *data;
-	uint len;
-	u16 txout;
-	u32 flags = 0;
-	dmaaddr_t 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) {
-		uint nsegs, j;
-		hnddma_seg_map_t *map;
-
-		data = p->data;
-		len = p->len;
-		next = p->next;
-
-		/* return nonzero if out of tx descriptors */
-		if (NEXTTXD(txout) == di->txin)
-			goto outoftxd;
-
-		if (len == 0)
-			continue;
-
-		/* get physical address of buffer start */
-		if (DMASGLIST_ENAB)
-			memset(&di->txp_dmah[txout], 0,
-				sizeof(hnddma_seg_map_t));
-
-		pa = pci_map_single(di->pbus, data, len, PCI_DMA_TODEVICE);
-
-		if (DMASGLIST_ENAB) {
-			map = &di->txp_dmah[txout];
-
-			/* See if all the segments can be accounted for */
-			if (map->nsegs >
-			    (uint) (di->ntxd - NTXDACTIVE(di->txin, di->txout) -
-				    1))
-				goto outoftxd;
-
-			nsegs = map->nsegs;
-		} else
-			nsegs = 1;
-
-		for (j = 1; j <= nsegs; j++) {
-			flags = 0;
-			if (p == p0 && j == 1)
-				flags |= D64_CTRL1_SOF;
-
-			/* With a DMA segment list, Descriptor table is filled
-			 * using the segment list instead of looping over
-			 * buffers in multi-chain DMA. Therefore, EOF for SGLIST is when
-			 * end of segment list is reached.
-			 */
-			if ((!DMASGLIST_ENAB && next == NULL) ||
-			    (DMASGLIST_ENAB && j == nsegs))
-				flags |= (D64_CTRL1_IOC | D64_CTRL1_EOF);
-			if (txout == (di->ntxd - 1))
-				flags |= D64_CTRL1_EOT;
-
-			if (DMASGLIST_ENAB) {
-				len = map->segs[j - 1].length;
-				pa = map->segs[j - 1].addr;
-			}
-			dma64_dd_upd(di, di->txd64, pa, txout, &flags, len);
-
-			txout = NEXTTXD(txout);
-		}
-
-		/* See above. No need to loop over individual buffers */
-		if (DMASGLIST_ENAB)
-			break;
-	}
-
-	/* 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->d64txregs->ptr,
-		      di->xmtptrbase + 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));
-	pkt_buf_free_skb(p0);
-	di->hnddma.txavail = 0;
-	di->hnddma.txnobuf++;
-	return -1;
-}
-
-/*
- * Reclaim next completed txd (txds if using chained buffers) in the range
- * specified and return associated packet.
- * If range is HNDDMA_RANGE_TRANSMITTED, reclaim descriptors that have be
- * transmitted as noted by the hardware "CurrDescr" pointer.
- * If range is HNDDMA_RANGE_TRANSFERED, reclaim descriptors that have be
- * transferred by the DMA as noted by the hardware "ActiveDescr" pointer.
- * If range is HNDDMA_RANGE_ALL, reclaim all txd(s) posted to the ring and
- * return associated packet regardless of the value of hardware pointers.
- */
-static void *BCMFASTPATH dma64_getnexttxp(dma_info_t *di, txd_range_t range)
-{
-	u16 start, end, i;
-	u16 active_desc;
-	void *txp;
-
-	DMA_TRACE(("%s: dma_getnexttxp %s\n", di->name,
-		   (range == HNDDMA_RANGE_ALL) ? "all" :
-		   ((range ==
-		     HNDDMA_RANGE_TRANSMITTED) ? "transmitted" :
-		    "transferred")));
-
-	if (di->ntxd == 0)
-		return NULL;
-
-	txp = NULL;
-
-	start = di->txin;
-	if (range == HNDDMA_RANGE_ALL)
-		end = di->txout;
-	else {
-		dma64regs_t *dregs = di->d64txregs;
-
-		end =
-		    (u16) (B2I
-			      (((R_REG(&dregs->status0) &
-				 D64_XS0_CD_MASK) -
-				di->xmtptrbase) & D64_XS0_CD_MASK, dma64dd_t));
-
-		if (range == HNDDMA_RANGE_TRANSFERED) {
-			active_desc =
-			    (u16) (R_REG(&dregs->status1) &
-				      D64_XS1_AD_MASK);
-			active_desc =
-			    (active_desc - di->xmtptrbase) & D64_XS0_CD_MASK;
-			active_desc = B2I(active_desc, dma64dd_t);
-			if (end != active_desc)
-				end = PREVTXD(active_desc);
-		}
-	}
-
-	if ((start == 0) && (end > di->txout))
-		goto bogus;
-
-	for (i = start; i != end && !txp; i = NEXTTXD(i)) {
-		dmaaddr_t pa;
-		hnddma_seg_map_t *map = NULL;
-		uint size, j, nsegs;
-
-		PHYSADDRLOSET(pa,
-			      (BUS_SWAP32(R_SM(&di->txd64[i].addrlow)) -
-			       di->dataoffsetlow));
-		PHYSADDRHISET(pa,
-			      (BUS_SWAP32(R_SM(&di->txd64[i].addrhigh)) -
-			       di->dataoffsethigh));
-
-		if (DMASGLIST_ENAB) {
-			map = &di->txp_dmah[i];
-			size = map->origsize;
-			nsegs = map->nsegs;
-		} else {
-			size =
-			    (BUS_SWAP32(R_SM(&di->txd64[i].ctrl2)) &
-			     D64_CTRL2_BC_MASK);
-			nsegs = 1;
-		}
-
-		for (j = nsegs; j > 0; j--) {
-			W_SM(&di->txd64[i].addrlow, 0xdeadbeef);
-			W_SM(&di->txd64[i].addrhigh, 0xdeadbeef);
-
-			txp = di->txp[i];
-			di->txp[i] = NULL;
-			if (j > 1)
-				i = NEXTTXD(i);
-		}
-
-		pci_unmap_single(di->pbus, pa, size, PCI_DMA_TODEVICE);
-	}
-
-	di->txin = i;
-
-	/* tx flow control */
-	di->hnddma.txavail = di->ntxd - NTXDACTIVE(di->txin, di->txout) - 1;
-
-	return txp;
-
- bogus:
-	DMA_NONE(("dma_getnexttxp: bogus curr: start %d end %d txout %d force %d\n", start, end, di->txout, forceall));
-	return NULL;
-}
-
-static void *BCMFASTPATH dma64_getnextrxp(dma_info_t *di, bool forceall)
-{
-	uint i, curr;
-	void *rxp;
-	dmaaddr_t pa;
-
-	i = di->rxin;
-
-	/* return if no packets posted */
-	if (i == di->rxout)
-		return NULL;
-
-	curr =
-	    B2I(((R_REG(&di->d64rxregs->status0) & D64_RS0_CD_MASK) -
-		 di->rcvptrbase) & D64_RS0_CD_MASK, dma64dd_t);
-
-	/* ignore curr if forceall */
-	if (!forceall && (i == curr))
-		return NULL;
-
-	/* get the packet pointer that corresponds to the rx descriptor */
-	rxp = di->rxp[i];
-	di->rxp[i] = NULL;
-
-	PHYSADDRLOSET(pa,
-		      (BUS_SWAP32(R_SM(&di->rxd64[i].addrlow)) -
-		       di->dataoffsetlow));
-	PHYSADDRHISET(pa,
-		      (BUS_SWAP32(R_SM(&di->rxd64[i].addrhigh)) -
-		       di->dataoffsethigh));
-
-	/* clear this packet from the descriptor ring */
-	pci_unmap_single(di->pbus, pa, di->rxbufsize, PCI_DMA_FROMDEVICE);
-
-	W_SM(&di->rxd64[i].addrlow, 0xdeadbeef);
-	W_SM(&di->rxd64[i].addrhigh, 0xdeadbeef);
-
-	di->rxin = NEXTRXD(i);
-
-	return rxp;
-}
-
-static bool _dma64_addrext(dma64regs_t *dma64regs)
-{
-	u32 w;
-	OR_REG(&dma64regs->control, D64_XC_AE);
-	w = R_REG(&dma64regs->control);
-	AND_REG(&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)
-{
-	u16 ad;
-	uint nactive;
-	uint rot;
-	u16 old, new;
-	u32 w;
-	u16 first, last;
-
-	nactive = _dma_txactive(di);
-	ad = (u16) (B2I
-		       ((((R_REG(&di->d64txregs->status1) &
-			   D64_XS1_AD_MASK)
-			  - di->xmtptrbase) & D64_XS1_AD_MASK), dma64dd_t));
-	rot = TXD(ad - di->txin);
-
-	/* 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 */
-		di->txp[new] = di->txp[old];
-
-		/* Move the map */
-		if (DMASGLIST_ENAB) {
-			memcpy(&di->txp_dmah[new], &di->txp_dmah[old],
-			       sizeof(hnddma_seg_map_t));
-			memset(&di->txp_dmah[old], 0, sizeof(hnddma_seg_map_t));
-		}
-
-		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->d64txregs->ptr,
-	      di->xmtptrbase + I2B(di->txout, dma64dd_t));
-}
-
-uint dma_addrwidth(si_t *sih, void *dmaregs)
-{
-	/* Perform 64-bit checks only if we want to advertise 64-bit (> 32bit) capability) */
-	/* DMA engine is 64-bit capable */
-	if ((ai_core_sflags(sih, 0, 0) & SISF_DMA64) == SISF_DMA64) {
-		/* backplane are 64-bit capable */
-		if (ai_backplane64(sih))
-			/* If bus is System Backplane or PCIE then we can access 64-bits */
-			if ((sih->bustype == SI_BUS) ||
-			    ((sih->bustype == PCI_BUS) &&
-			     (sih->buscoretype == PCIE_CORE_ID)))
-				return DMADDRWIDTH_64;
-	}
-	/* DMA hardware not supported by this driver*/
-	return DMADDRWIDTH_64;
-}
-
-/*
- * Mac80211 initiated actions sometimes require packets in the DMA queue to be
- * modified. The modified portion of the packet is not under control of the DMA
- * engine. This function calls a caller-supplied function for each packet in
- * the caller specified dma chain.
- */
-void dma_walk_packets(struct hnddma_pub *dmah, void (*callback_fnc)
-		      (void *pkt, void *arg_a), void *arg_a)
-{
-	dma_info_t *di = (dma_info_t *) dmah;
-	uint i =   di->txin;
-	uint end = di->txout;
-	struct sk_buff *skb;
-	struct ieee80211_tx_info *tx_info;
-
-	while (i != end) {
-		skb = (struct sk_buff *)di->txp[i];
-		if (skb != NULL) {
-			tx_info = (struct ieee80211_tx_info *)skb->cb;
-			(callback_fnc)(tx_info, arg_a);
-		}
-		i = NEXTTXD(i);
-	}
-}