--- /dev/null
+/*
+ * 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.
+ */
+
+#ifndef _hnddma_h_
+#define _hnddma_h_
+
+#ifndef _hnddma_pub_
+#define _hnddma_pub_
+struct hnddma_pub;
+#endif /* _hnddma_pub_ */
+
+/* range param for dma_getnexttxp() and dma_txreclaim */
+typedef enum txd_range {
+ HNDDMA_RANGE_ALL = 1,
+ HNDDMA_RANGE_TRANSMITTED,
+ HNDDMA_RANGE_TRANSFERED
+} txd_range_t;
+
+/* dma function type */
+typedef void (*di_detach_t) (struct hnddma_pub *dmah);
+typedef bool(*di_txreset_t) (struct hnddma_pub *dmah);
+typedef bool(*di_rxreset_t) (struct hnddma_pub *dmah);
+typedef bool(*di_rxidle_t) (struct hnddma_pub *dmah);
+typedef void (*di_txinit_t) (struct hnddma_pub *dmah);
+typedef bool(*di_txenabled_t) (struct hnddma_pub *dmah);
+typedef void (*di_rxinit_t) (struct hnddma_pub *dmah);
+typedef void (*di_txsuspend_t) (struct hnddma_pub *dmah);
+typedef void (*di_txresume_t) (struct hnddma_pub *dmah);
+typedef bool(*di_txsuspended_t) (struct hnddma_pub *dmah);
+typedef bool(*di_txsuspendedidle_t) (struct hnddma_pub *dmah);
+typedef int (*di_txfast_t) (struct hnddma_pub *dmah, struct sk_buff *p,
+ bool commit);
+typedef int (*di_txunframed_t) (struct hnddma_pub *dmah, void *p, uint len,
+ bool commit);
+typedef void *(*di_getpos_t) (struct hnddma_pub *di, bool direction);
+typedef void (*di_fifoloopbackenable_t) (struct hnddma_pub *dmah);
+typedef bool(*di_txstopped_t) (struct hnddma_pub *dmah);
+typedef bool(*di_rxstopped_t) (struct hnddma_pub *dmah);
+typedef bool(*di_rxenable_t) (struct hnddma_pub *dmah);
+typedef bool(*di_rxenabled_t) (struct hnddma_pub *dmah);
+typedef void *(*di_rx_t) (struct hnddma_pub *dmah);
+typedef bool(*di_rxfill_t) (struct hnddma_pub *dmah);
+typedef void (*di_txreclaim_t) (struct hnddma_pub *dmah, txd_range_t range);
+typedef void (*di_rxreclaim_t) (struct hnddma_pub *dmah);
+typedef unsigned long (*di_getvar_t) (struct hnddma_pub *dmah,
+ const char *name);
+typedef void *(*di_getnexttxp_t) (struct hnddma_pub *dmah, txd_range_t range);
+typedef void *(*di_getnextrxp_t) (struct hnddma_pub *dmah, bool forceall);
+typedef void *(*di_peeknexttxp_t) (struct hnddma_pub *dmah);
+typedef void *(*di_peeknextrxp_t) (struct hnddma_pub *dmah);
+typedef void (*di_rxparam_get_t) (struct hnddma_pub *dmah, u16 *rxoffset,
+ u16 *rxbufsize);
+typedef void (*di_txblock_t) (struct hnddma_pub *dmah);
+typedef void (*di_txunblock_t) (struct hnddma_pub *dmah);
+typedef uint(*di_txactive_t) (struct hnddma_pub *dmah);
+typedef void (*di_txrotate_t) (struct hnddma_pub *dmah);
+typedef void (*di_counterreset_t) (struct hnddma_pub *dmah);
+typedef uint(*di_ctrlflags_t) (struct hnddma_pub *dmah, uint mask, uint flags);
+typedef char *(*di_dump_t) (struct hnddma_pub *dmah, struct bcmstrbuf *b,
+ bool dumpring);
+typedef char *(*di_dumptx_t) (struct hnddma_pub *dmah, struct bcmstrbuf *b,
+ bool dumpring);
+typedef char *(*di_dumprx_t) (struct hnddma_pub *dmah, struct bcmstrbuf *b,
+ bool dumpring);
+typedef uint(*di_rxactive_t) (struct hnddma_pub *dmah);
+typedef uint(*di_txpending_t) (struct hnddma_pub *dmah);
+typedef uint(*di_txcommitted_t) (struct hnddma_pub *dmah);
+
+/* 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_txunframed_t txunframed;
+ di_getpos_t getpos;
+ 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_peeknextrxp_t peeknextrxp;
+ di_rxparam_get_t rxparam_get;
+
+ di_fifoloopbackenable_t fifoloopbackenable;
+ di_getvar_t d_getvar;
+ di_counterreset_t counterreset;
+ di_ctrlflags_t ctrlflags;
+ di_dump_t dump;
+ di_dumptx_t dumptx;
+ di_dumprx_t dumprx;
+ di_rxactive_t rxactive;
+ di_txpending_t txpending;
+ di_txcommitted_t txcommitted;
+ uint endnum;
+} di_fcn_t;
+
+/*
+ * Exported data structure (read-only)
+ */
+/* export structure */
+struct hnddma_pub {
+ const di_fcn_t *di_fn; /* DMA function pointers */
+ uint txavail; /* # free tx descriptors */
+ uint dmactrlflags; /* dma control flags */
+
+ /* 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 struct hnddma_pub *dma_attach(struct osl_info *osh, char *name,
+ si_t *sih,
+ void *dmaregstx, void *dmaregsrx, uint ntxd,
+ uint nrxd, uint rxbufsize, int rxextheadroom,
+ uint nrxpost, uint rxoffset, uint *msg_level);
+#ifdef BCMDMA32
+
+#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, range) ((di)->di_fn->txreclaim(di, range))
+#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, range) ((di)->di_fn->getnexttxp(di, range))
+#define dma_getnextrxp(di, forceall) ((di)->di_fn->getnextrxp(di, forceall))
+#define dma_peeknexttxp(di) ((di)->di_fn->peeknexttxp(di))
+#define dma_peeknextrxp(di) ((di)->di_fn->peeknextrxp(di))
+#define dma_rxparam_get(di, off, bufs) ((di)->di_fn->rxparam_get(di, off, bufs))
+
+#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_rxactive(di) ((di)->di_fn->rxactive(di))
+#define dma_txrotate(di) ((di)->di_fn->txrotate(di))
+#define dma_counterreset(di) ((di)->di_fn->counterreset(di))
+#define dma_ctrlflags(di, mask, flags) ((di)->di_fn->ctrlflags((di), (mask), (flags)))
+#define dma_txpending(di) ((di)->di_fn->txpending(di))
+#define dma_txcommitted(di) ((di)->di_fn->txcommitted(di))
+
+#else /* BCMDMA32 */
+extern const di_fcn_t dma64proc;
+
+#define dma_detach(di) (dma64proc.detach(di))
+#define dma_txreset(di) (dma64proc.txreset(di))
+#define dma_rxreset(di) (dma64proc.rxreset(di))
+#define dma_rxidle(di) (dma64proc.rxidle(di))
+#define dma_txinit(di) (dma64proc.txinit(di))
+#define dma_txenabled(di) (dma64proc.txenabled(di))
+#define dma_rxinit(di) (dma64proc.rxinit(di))
+#define dma_txsuspend(di) (dma64proc.txsuspend(di))
+#define dma_txresume(di) (dma64proc.txresume(di))
+#define dma_txsuspended(di) (dma64proc.txsuspended(di))
+#define dma_txsuspendedidle(di) (dma64proc.txsuspendedidle(di))
+#define dma_txfast(di, p, commit) (dma64proc.txfast(di, p, commit))
+#define dma_txunframed(di, p, l, commit)(dma64proc.txunframed(di, p, l, commit))
+#define dma_getpos(di, dir) (dma64proc.getpos(di, dir))
+#define dma_fifoloopbackenable(di) (dma64proc.fifoloopbackenable(di))
+#define dma_txstopped(di) (dma64proc.txstopped(di))
+#define dma_rxstopped(di) (dma64proc.rxstopped(di))
+#define dma_rxenable(di) (dma64proc.rxenable(di))
+#define dma_rxenabled(di) (dma64proc.rxenabled(di))
+#define dma_rx(di) (dma64proc.rx(di))
+#define dma_rxfill(di) (dma64proc.rxfill(di))
+#define dma_txreclaim(di, range) (dma64proc.txreclaim(di, range))
+#define dma_rxreclaim(di) (dma64proc.rxreclaim(di))
+#define dma_getvar(di, name) (dma64proc.d_getvar(di, name))
+#define dma_getnexttxp(di, range) (dma64proc.getnexttxp(di, range))
+#define dma_getnextrxp(di, forceall) (dma64proc.getnextrxp(di, forceall))
+#define dma_peeknexttxp(di) (dma64proc.peeknexttxp(di))
+#define dma_peeknextrxp(di) (dma64proc.peeknextrxp(di))
+#define dma_rxparam_get(di, off, bufs) (dma64proc.rxparam_get(di, off, bufs))
+
+#define dma_txblock(di) (dma64proc.txblock(di))
+#define dma_txunblock(di) (dma64proc.txunblock(di))
+#define dma_txactive(di) (dma64proc.txactive(di))
+#define dma_rxactive(di) (dma64proc.rxactive(di))
+#define dma_txrotate(di) (dma64proc.txrotate(di))
+#define dma_counterreset(di) (dma64proc.counterreset(di))
+#define dma_ctrlflags(di, mask, flags) (dma64proc.ctrlflags((di), (mask), (flags)))
+#define dma_txpending(di) (dma64proc.txpending(di))
+#define dma_txcommitted(di) (dma64proc.txcommitted(di))
+
+#endif /* BCMDMA32 */
+
+/* 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(si_t *sih, void *dmaregs);
+
+/* pio helpers */
+extern void dma_txpioloopback(struct osl_info *osh, dma32regs_t *);
+
+#endif /* _hnddma_h_ */
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