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/* $OpenBSD: midwayreg.h,v 1.9 2003/10/21 18:58:49 jmc Exp $ */
/*
* m i d w a y r e g . h
*
* this file contains the description of the ENI ATM midway chip
* data structures. see midway.c for more details.
*
*/
#if defined(__sparc__) || defined(__FreeBSD__)
/* XXX: gross. netbsd/sparc doesn't have machine/bus.h yet. */
typedef void * bus_space_tag_t;
typedef u_int32_t pci_chipset_tag_t;
typedef caddr_t bus_space_handle_t;
typedef u_int32_t bus_size_t;
typedef caddr_t bus_addr_t;
#define bus_space_read_4(t, h, o) ((void) t, \
(*(volatile u_int32_t *)((h) + (o))))
#define bus_space_write_4(t, h, o, v) \
((void) t, ((void)(*(volatile u_int32_t *)((h) + (o)) = (v))))
#if defined(__sparc__)
#define vtophys(x) ((u_int32_t)(x)) /* sun4c dvma */
#endif
#endif
#define MID_SZTOB(X) ((X) * 256 * 4) /* size to bytes */
#define MID_BTOSZ(X) ((X) / 256 / 4) /* bytes to "size" */
#define MID_N_VC 1024 /* # of VCs we can use */
#define MID_NTX_CH 8 /* 8 transmit channels (shared) */
#define MID_ATMDATASZ 48 /* need data in 48 byte blocks */
/*
* card data structures, top down
*
* in order to have a portable driver, the netbsd guys will not let us
* use structs. we have a bus_space_handle_t which is the en_base address.
* everything else is an offset from that base. all card data must be
* accessed with bus_space_read_4()/bus_space_write_4():
*
* rv = bus_space_read_4(sc->en_memt, sc->en_base, BYTE_OFFSET);
* bus_space_write_4(sc->en_memt, sc->en_base, BYTE_OFFSET, VALUE);
*
* en_card: the whole card (prom + phy + midway + obmem)
* obmem contains: vci tab + dma queues (rx & tx) + service list + bufs
*/
/* byte offsets from en_base of various items */
#define MID_PHYOFF 0x030000 /* PHY offset */
#define MID_MIDOFF 0x040000 /* midway regs offset */
#define MID_RAMOFF 0x200000 /* RAM offset */
#define MID_DRQOFF 0x204000 /* DRQ offset */
#define MID_DRQEND MID_DTQOFF /* DRQ end */
#define MID_DTQOFF 0x205000 /* DTQ offset */
#define MID_DTQEND MID_SLOFF /* DTQ end */
#define MID_SLOFF 0x206000 /* service list */
#define MID_SLEND MID_BUFOFF /* service list end */
#define MID_BUFOFF 0x207000 /* buffer area */
#define MID_PROBEOFF 0x21fffc /* start probe here */
#define MID_PROBSIZE 0x020000 /* 128 KB */
#define MID_MAXOFF 0x3ffffc /* max offset */
/*
* prom & phy: not defined here
*/
/*
* midway regs (byte offsets from en_base)
*/
#define MID_RESID 0x40000 /* write=reset reg, read=ID reg */
#define MID_VER(X) (((X) & 0xf0000000) >> 28) /* midway version # */
#define MID_MID(X) (((X) & 0x700) >> 8) /* motherboard ID */
#define MID_IS_SABRE(X) ((X) & 0x80) /* sabre controller? */
#define MID_IS_SUNI(X) ((X) & 0x40) /* SUNI? vs utopia */
#define MID_IS_UPIPE(X) ((X) & 0x20) /* utopia pipeline? */
#define MID_DID(X) ((X) & 0x1f) /* daughterboard ID */
#define MID_INTACK 0x40004 /* interrupt ACK */
#define MID_INTSTAT 0x40008 /* interrupt status */
#define MID_INTENA 0x4000c /* interrupt enable */
#define MID_TXCHAN(N) (1 << ((N) + 9)) /* ack/status/enable xmit channel bit*/
#define MID_INT_TX 0x1fe00 /* mask for any xmit interrupt */
#define MID_INT_DMA_OVR 0x00100 /* DMA overflow interrupt */
#define MID_INT_IDENT 0x00080 /* ident match error interrupt */
#define MID_INT_LERR 0x00040 /* LERR interrupt (sbus?) */
#define MID_INT_DMA_ERR 0x00020 /* DMA error interrupt */
#define MID_INT_DMA_RX 0x00010 /* DMA recv interrupt */
#define MID_INT_DMA_TX 0x00008 /* DMA xmit interrupt */
#define MID_INT_SERVICE 0x00004 /* service list interrupt */
#define MID_INT_SUNI 0x00002 /* SUNI interrupt */
#define MID_INT_STATS 0x00001 /* stats overflow interrupt */
#define MID_INT_ANY 0x1ffff /* any interrupt? */
#define MID_INTBITS "\20\21T7\20T6\17T5\16T4\15T3\14T2\13T1\12T0\11DMAOVR\10ID\7LERR\6DMAERR\5RXDMA\4TXDMA\3SERV\2SUNI\1STAT"
#define MID_MAST_CSR 0x40010 /* master CSR */
#define MID_IPL(X) (((X) & 0x1c0) >> 6) /* IPL */
#define MID_SETIPL(I) ((I) << 6)
#define MID_MCSR_TXLOCK 0x20 /* lock on xmit overflow mode */
/* NOTE: next 5 bits: write 1 means enable, write 0 means no change */
#define MID_MCSR_ENDMA 0x10 /* DMA enable */
#define MID_MCSR_ENTX 0x08 /* TX enable */
#define MID_MCSR_ENRX 0x04 /* RX enable */
#define MID_MCSR_W1MS 0x02 /* wait 1 msec */
#define MID_MCSR_W500US 0x01 /* wait 500 usec */
#define MID_MCSRBITS "\20\6LCK\5DMAON\4TXON\3RXON\2W1MS\1W500US"
#define MID_STAT 0x40014 /* stat register, clear on read */
#define MID_VTRASH(X) (((X) >> 16) & 0xffff)
/* # cells trashed due to VCI's mode */
#define MID_OTRASH(X) ((X) & 0xffff) /* # cells trashed due to overflow */
#define MID_SERV_WRITE 0x40018 /* 10 bit service write pointer (r/o) */
#define MID_DMA_ADDR 0x4001c /* VA of DMA (r/o) */
/* DMA queue pointers (bits 0 to 8) */
#define MID_DMA_WRRX 0x40020 /* write ptr. for DMA recv queue */
/* (for adaptor -> host xfers) */
#define MID_DMA_RDRX 0x40024 /* read ptr for DMA recv queue (r/o) */
/* (i.e. current adaptor->host xfer) */
#define MID_DMA_WRTX 0x40028 /* write ptr for DMA xmit queue */
/* (for host -> adaptor xfers) */
#define MID_DMA_RDTX 0x4002c /* read ptr for DMA xmit queue (r/o) */
/* (i.e. current host->adaptor xfer) */
/* xmit channel regs (1 per channel, MID_NTX_CH max channels) */
#define MIDX_PLACE(N) (0x40040+((N)*0x10)) /* xmit place */
#define MIDX_MKPLACE(SZ,LOC) ( ((SZ) << 11) | (LOC) )
#define MIDX_LOC(X) ((X) & 0x7ff) /* location in obmem */
#define MIDX_SZ(X) ((X) >> 11) /* (size of block / 256) in int32_t's*/
#define MIDX_BASE(X) \
(((MIDX_LOC(X) << MIDV_LOCTOPSHFT) * sizeof(u_int32_t)) + MID_RAMOFF)
/* the following two regs are word offsets in the block */
#define MIDX_READPTR(N) (0x40044+((N)*0x10)) /* xmit read pointer (r/o) */
#define MIDX_DESCSTART(N) (0x40048+((N)*0x10)) /* seg currently in DMA (r/o) */
/*
* obmem items
*/
/*
* vci table in obmem (offset from MID_VCTOFF)
*/
#define MID_VC(N) (MID_RAMOFF+((N)*0x10))
#define MIDV_TRASH 0x00000000 /* ignore VC */
#define MIDV_AAL5 0x80000000 /* do AAL5 on it */
#define MIDV_NOAAL 0x40000000 /* do per-cell stuff on it */
#define MIDV_MASK 0xc0000000 /* mode mask */
#define MIDV_SETMODE(VC,M) (((VC) & ~(MIDV_MASK)) | (M)) /* new mode */
#define MIDV_PTI 0x20000000 /* save PTI cells? */
#define MIDV_LOCTOPSHFT 8 /* shift to get top 11 bits of 19 */
#define MIDV_LOCSHIFT 18
#define MIDV_LOCMASK 0x7ff
#define MIDV_LOC(X) (((X) >> MIDV_LOCSHIFT) & MIDV_LOCMASK)
/* 11 most sig bits of addr */
#define MIDV_SZSHIFT 15
#define MIDV_SZ(X) (((X) >> MIDV_SZSHIFT) & 7)
/* size encoded the usual way */
#define MIDV_INSERVICE 0x1 /* in service list */
#define MID_DST_RP(N) (MID_VC(N)|0x4)
#define MIDV_DSTART_SHIFT 16 /* shift */
#define MIDV_DSTART(X) (((X) >> MIDV_DSTART_SHIFT) & 0x7fff)
#define MIDV_READP_MASK 0x7fff /* valid bits, (shift = 0) */
#define MID_WP_ST_CNT(N) (MID_VC(N)|0x8) /* write pointer/state/count */
#define MIDV_WRITEP_MASK 0x7fff0000 /* mask for write ptr. */
#define MIDV_WRITEP_SHIFT 16
#define MIDV_ST_IDLE 0x0000
#define MIDV_ST_TRASH 0xc000
#define MIDV_ST_REASS 0x4000
#define MIDV_CCOUNT 0x7ff /* cell count */
#define MID_CRC(N) (MID_VC(N)|0xc) /* CRC */
/*
* dma recv q.
*/
#define MID_DMA_END (1 << 5) /* for both tx and rx */
#define MID_DMA_CNT(X) (((X) >> 16) & 0xffff)
#define MID_DMA_TXCHAN(X) (((X) >> 6) & 0x7)
#define MID_DMA_RXVCI(X) (((X) >> 6) & 0x3ff)
#define MID_DMA_TYPE(X) ((X) & 0xf)
#define MID_DRQ_N 512 /* # of descriptors */
#define MID_DRQ_A2REG(N) (((N) - MID_DRQOFF) >> 3)
/* convert byte offset to reg value */
#define MID_DRQ_REG2A(N) (((N) << 3) + MID_DRQOFF) /* and back */
/* note: format of word 1 of RXQ is different between ENI and ADP cards */
#define MID_MK_RXQ_ENI(CNT,VC,END,TYPE) \
( ((CNT) << 16)|((VC) << 6)|(END)|(TYPE) )
#define MID_MK_RXQ_ADP(CNT,VC,END,JK) \
( ((CNT) << 12)|((VC) << 2)|((END) >> 4)|(((JK) != 0) ? 1 : 0))
/*
* dma xmit q.
*/
#define MID_DTQ_N 512 /* # of descriptors */
#define MID_DTQ_A2REG(N) (((N) - MID_DTQOFF) >> 3)
/* convert byte offset to reg value */
#define MID_DTQ_REG2A(N) (((N) << 3) + MID_DTQOFF) /* and back */
/* note: format of word 1 of TXQ is different between ENI and ADP cards */
#define MID_MK_TXQ_ENI(CNT,CHN,END,TYPE) \
( ((CNT) << 16)|((CHN) << 6)|(END)|(TYPE) )
#define MID_MK_TXQ_ADP(CNT,CHN,END,JK) \
( ((CNT) << 12)|((CHN) << 2)|((END) >> 4)|(((JK) != 0) ? 1 : 0) )
/*
* dma types
*/
#define MIDDMA_JK 0x3 /* just kidding */
#define MIDDMA_BYTE 0x1 /* byte */
#define MIDDMA_2BYTE 0x2 /* 2 bytes */
#define MIDDMA_WORD 0x0 /* word */
#define MIDDMA_2WORD 0x7 /* 2 words */
#define MIDDMA_4WORD 0x4 /* 4 words */
#define MIDDMA_8WORD 0x5 /* 8 words */
#define MIDDMA_16WORD 0x6 /* 16 words!!! */
#define MIDDMA_2WMAYBE 0xf /* 2 words, maybe */
#define MIDDMA_4WMAYBE 0xc /* 4 words, maybe */
#define MIDDMA_8WMAYBE 0xd /* 8 words, maybe */
#define MIDDMA_16WMAYBE 0xe /* 16 words, maybe */
#define MIDDMA_MAYBE 0xc /* mask to detect WMAYBE dma code */
#define MIDDMA_MAXBURST (16 * sizeof(u_int32_t)) /* largest burst */
/*
* service list
*/
#define MID_SL_N 1024 /* max # entries on slist */
#define MID_SL_A2REG(N) (((N) - MID_SLOFF) >> 2)
/* convert byte offset to reg value */
#define MID_SL_REG2A(N) (((N) << 2) + MID_SLOFF) /* and back */
/*
* data in the buffer area of obmem
*/
/*
* recv buffer desc. (1 u_int32_t at start of buffer)
*/
#define MID_RBD_SIZE 4 /* RBD size */
#define MID_CHDR_SIZE 4 /* on aal0, cell header size */
#define MID_RBD_ID(X) ((X) & 0xfe000000) /* get ID */
#define MID_RBD_STDID 0x36000000 /* standard ID */
#define MID_RBD_CLP 0x01000000 /* CLP: cell loss priority */
#define MID_RBD_CE 0x00010000 /* CE: congestion experienced */
#define MID_RBD_T 0x00001000 /* T: trashed due to overflow */
#define MID_RBD_CRCERR 0x00000800 /* CRC error */
#define MID_RBD_CNT(X) ((X) & 0x7ff) /* cell count */
/*
* xmit buffer desc. (2 u_int32_t's at start of buffer)
* (note we treat the PR & RATE as a single u_int8_t)
*/
#define MID_TBD_SIZE 8
#define MID_TBD_MK1(AAL,PR_RATE,CNT) \
(MID_TBD_STDID|(AAL)|((PR_RATE) << 19)|(CNT))
#define MID_TBD_STDID 0xb0000000 /* standard ID */
#define MID_TBD_AAL5 0x08000000 /* AAL 5 */
#define MID_TBD_NOAAL5 0x00000000 /* not AAL 5 */
#define MID_TBD_MK2(VCI,PTI,CLP) \
(((VCI) << 4)|((PTI) << 1)|(CLP))
/*
* aal5 pdu tail, last 2 words of last cell of AAL5 frame
* (word 2 is CRC .. handled by hw)
*/
#define MID_PDU_SIZE 8
#define MID_PDU_MK1(UU,CPI,LEN) \
(((UU) << 24)|((CPI) << 16)|(LEN))
#define MID_PDU_LEN(X) ((X) & 0xffff)
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