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fwohcivar.h revision 1.2 
      1 /*-
      2  * Copyright (c) 2000 The NetBSD Foundation, Inc.
      3  * All rights reserved.
      4  *
      5  * This code is derived from software contributed to The NetBSD Foundation
      6  * by Matt Thomas of the 3am Software Foundry.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in the
     15  *    documentation and/or other materials provided with the distribution.
     16  * 3. All advertising materials mentioning features or use of this software
     17  *    must display the following acknowledgement:
     18  *        This product includes software developed by the NetBSD
     19  *        Foundation, Inc. and its contributors.
     20  * 4. Neither the name of The NetBSD Foundation nor the names of its
     21  *    contributors may be used to endorse or promote products derived
     22  *    from this software without specific prior written permission.
     23  *
     24  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     25  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     26  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     27  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     28  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     29  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     30  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     31  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     32  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     33  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     34  * POSSIBILITY OF SUCH DAMAGE.
     35  */
     36 
     37 #ifndef _DEV_IEEE1394_FWOHCIVAR_H_
     38 #define	_DEV_IEEE1394_FWOHCIVAR_H_
     39 
     40 
     41 #define	OHCI_PAGE_SIZE		0x0800
     42 #define	OHCI_BUF_ARRQ_CNT	16
     43 #define	OHCI_BUF_ARRS_CNT	8
     44 #define	OHCI_BUF_ATRQ_CNT	(8*8)
     45 #define	OHCI_BUF_ATRS_CNT	(8*8)
     46 #define	OHCI_BUF_IR_CNT		16
     47 #define	OHCI_BUF_CNT		(OHCI_BUF_ARRQ_CNT + OHCI_BUF_ARRS_CNT + OHCI_BUF_ATRQ_CNT + OHCI_BUF_ATRS_CNT + OHCI_BUF_IR_CNT + 1 + 1)
     48 
     49 #define	OHCI_LOOP		1000
     50 
     51 struct fwohci_softc;
     52 
     53 struct fwohci_buf {
     54 	TAILQ_ENTRY(fwohci_buf) fb_list;
     55 	bus_dma_segment_t fb_seg;
     56 	int fb_nseg;
     57 	bus_dmamap_t fb_dmamap;
     58 	caddr_t fb_buf;
     59 	struct fwohci_desc *fb_desc;
     60 	bus_addr_t fb_daddr;
     61 	int fb_off;
     62 	struct mbuf *fb_m;
     63 	void (*fb_callback)(struct device *, struct mbuf *);
     64 };
     65 
     66 struct fwohci_pkt {
     67 	int	fp_tcode;
     68 	int	fp_hlen;
     69 	int	fp_dlen;
     70 	u_int32_t fp_hdr[4];
     71 	int	fp_iovcnt;
     72 	struct iovec fp_iov[8];
     73 	u_int32_t *fp_trail;
     74 	struct mbuf *fp_m;
     75 	void (*fp_callback)(struct device *, struct mbuf *);
     76 };
     77 
     78 struct fwohci_handler {
     79 	LIST_ENTRY(fwohci_handler) fh_list;
     80 	u_int32_t	fh_tcode;	/* ARRQ   / ARRS   / IR   */
     81 	u_int32_t	fh_key1;	/* addrhi / srcid  / chan */
     82 	u_int32_t	fh_key2;	/* addrlo / tlabel / tag  */
     83 	int		(*fh_handler)(struct fwohci_softc *, void *,
     84 			    struct fwohci_pkt *);
     85 	void		*fh_handarg;
     86 };
     87 
     88 struct fwohci_ctx {
     89 	int	fc_ctx;
     90 	int	fc_ppbmode;	/* packet per buffer */
     91 	int	fc_bufcnt;
     92 	u_int32_t	*fc_branch;
     93 	TAILQ_HEAD(fwohci_buf_s, fwohci_buf) fc_buf, fc_busy;
     94 	LIST_HEAD(, fwohci_handler) fc_handler;
     95 };
     96 
     97 struct fwohci_uidtbl {
     98 	struct fwohci_uident {
     99 		u_int8_t	fu_uid[4];
    100 		u_int8_t	fu_valid;
    101 	} fu_hi, fu_lo;
    102 };
    103 
    104 struct fwohci_softc {
    105 	struct ieee1394_softc sc_sc1394;
    106 
    107 	bus_space_tag_t sc_memt;
    108 	bus_space_handle_t sc_memh;
    109 	bus_dma_tag_t sc_dmat;
    110 	bus_size_t sc_memsize;
    111 
    112 	bus_dma_segment_t sc_dseg;
    113 	int sc_dnseg;
    114 	bus_dmamap_t sc_ddmamap;
    115 	caddr_t sc_desc;
    116 	int sc_descsize;
    117 	int sc_descfree;
    118 
    119 	int sc_isoctx;
    120 	int sc_tlabel;
    121 
    122 	struct fwohci_ctx *sc_ctx_arrq;
    123 	struct fwohci_ctx *sc_ctx_arrs;
    124 	struct fwohci_ctx *sc_ctx_atrq;
    125 	struct fwohci_ctx *sc_ctx_atrs;
    126 	struct fwohci_ctx **sc_ctx_ir;
    127 	struct fwohci_buf sc_buf_cnfrom;
    128 	struct fwohci_buf sc_buf_selfid;
    129 
    130 	u_int8_t sc_csr[CSR_SB_END];
    131 
    132 	struct fwohci_uidtbl *sc_uidtbl;
    133 	u_int16_t sc_nodeid;
    134 	u_int8_t sc_irmid;
    135 	u_int8_t sc_rootid;
    136 };
    137 
    138 int fwohci_init __P((struct fwohci_softc *));
    139 int fwohci_intr __P((void *));
    140 int fwohci_print __P((void *, const char *));
    141 
    142 /* Macros to read and write the OHCI registers
    143  */
    144 #define	OHCI_CSR_WRITE(sc, reg, val)	bus_space_write_4((sc)->sc_memt, (sc)->sc_memh, reg, val)
    145 #define	OHCI_CSR_READ(sc, reg)	bus_space_read_4((sc)->sc_memt, (sc)->sc_memh, reg)
    146 
    147 #endif	/* _DEV_IEEE1394_FWOHCIVAR_H_ */
    148