--- /dev/null
+/*
+ * 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_ */
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